WO2017006094A1

WO2017006094A1 - Detachable multi-function rim for a portable electronic device

Info

Publication number: WO2017006094A1
Application number: PCT/GB2016/052008
Authority: WO
Inventors: Julian Richard ELLIS
Original assignee: Aquaterra Limited
Priority date: 2015-07-03
Filing date: 2016-07-01
Publication date: 2017-01-12
Also published as: GB201511715D0

Abstract

A detachable multi-function rim (102) for a portable electronic (100) device, the multi-function rim (102) being operable as any one or more of a storage compartment, a stand, an attachment adapter, and/or a user input device. The multi-function rim (102) may be part of the portable electronic (100) device or may be part of a cover or case mounted to the portable electronic (100) device.

Description

DETACHABLE MULTI-FUNCTION RIM FOR A PORTABLE ELECTRONIC DEVICE

TECHNICAL FIELD

The invention relates to a detachable, e.g. foldably expandable, rim for a portable electronic device, such as a mobile phone, smart phone, MP3 player, tablet, laptop, etc. In particular, the invention relates to a detachable rim th provides one or more ancillary functions, such as a storage compartment, a stand, an attachment adaptor (e.g. clip or hook), or a game controller.

BACKGROUND TO THE INVENTION

It is known to provide protective covers for portable electronic devices. Such covers may be made from a durable material, e.g. silicone, which is scratch resistant and which can provide some resilience against high impacts. Typically, protective covers have a shape which conforms to the portable electronic device, e.g. by providing a recess into which the portable electronic device can be secured, e.g. clipped or gripped, and a protective rim that surrounds (overlays) the side edges of the portable electronic device. SUMMARY OF THE INVENTION

At its most general, the present invention provides a multifunction detachable rim for a portable electronic device. The detachable rim can be manufactured as a part of the portable electronic device or can be part of a cover or case that is subsequently mounted to the portable electronic device. The detachable rim can be a collapsible construction comprising a plurality of folding elements connected together in series at rotating joints, e.g. bearings, hinges, pivots or the like. The detachable rim can protect the side edges of the portable electronic device when in a retracted

configuration. It can also provide a storage compartment e.g. for one or more wires that can be used with the portable electronic device. When in an expanded or detached

configuration, the rim may act as a stand or other attachment accessory for the portable electronic device. In one embodiment, the rim may act as a game controller when in an expanded or detached configuration, e.g. by having game control buttons contained therein.

According to a first aspect of the invention, there is provided a rim for a portable electronic device, the rim comprising a collapsible structure mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the collapsible structure being movable between a closed configuration and an open configuration, wherein the collapsible structure comprises a plurality of (e.g. two, three or more than three) folding elements pivotably connected in series, the plurality of folding elements including: an outer frame that provides an. external side surface of the body when in the closed configuration, and an inner frame pivotably connected to the body, wherein in the closed configuration the plurality of folding elements are concertina folded to lie flat against the body, wherein in the open configuration the outer frame is detached from the body, and wherein in the closed configuration the collapsible structure defines an enclosed storage recess around the periphery of the body. Herein the term "rim" may mean a structure that provides the side surfaces of the portable electronic device. The rim may be part of a protective cover that is detachably mounted on the portable electronic device, or it may be part of the casing of the portable electronic device, i.e. integrally formed therewith. The term

"collapsible structure" may mean a structure that has a larger footprint, e.g. takes up a larger volume, in an open position compared with a closed position. Herein the term "frame" may mean a rigid or semi-rigid structure that defines one or more straight sides of an aperture for receiving the rest of the portable electronic device. In some embodiments, the word "frame" means a complete oblong, whereas in other embodiments the work "frame" encompasses three-sided or two-sided

structures. Herein, the term "concertina folded", otherwise known as zigzag folded, means the plurality of folding elements can be folded on top of one another with the axis of each rotation alternating between opposing sides of the structure. Herein, the term "portable electronic device" may mean any consumer electronic device that is transportable by a user, e.g. a mobile phone, smart phone, MP3 player, tablet, laptop, etc.

The enclosed storage recess in this embodiment may be a gap formed between an inner surface of the rim and a rear surface of the portable electronic device. The gap may be used to store cables for the portable electronic device, e.g. wiring for headphones or for a power adaptor. The recess may include a structure for retaining a cable. For example, the body can include an upstanding flange around its back surface, wherein the plurality of folding elements define an aperture which fits over the upstanding flange when in the closed configuration, wherein the enclosed storage recess is formed by a gap between the inner surface of the aperture and the upstanding flange. The upstanding flange can have a cable wound around it.

In another embodiment, the storage recess may be shaped to receive a foldable keyboard accessory. The keyboard accessory may be deployed when the collapsible structure is in the open configuration. For example, the keyboard accessory may be detachable from the recess. The keyboard accessory may be wirelessly connectable to the portable electronic device, as is known.

According to a second aspect of the invention, there is provided a rim for a portable electronic device, the rim comprising a collapsible structure mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the collapsible structure being movable between a closed configuration and an open configuration, wherein the collapsible structure comprises a plurality of folding elements pivotably connected in series, the plurality of folding elements including: an outer frame that provides an external side surface of the body when in the closed

configuration, and an inner frame pivotably connected to the body, wherein in the closed configuration the plurality of folding elements are concertina folded to lie flat against the body, wherein in the open configuration the outer frame is detached from the body, and wherein the collapsible structure includes a flexible wire stowable in the outer frame, the flexible wire being deployable in the open configuration to provide a loop from which to hang the portable electronic device. Features described above with respect to the first aspect may also be incorporated into the second aspect.

In the second aspect, the rim including a flexible wire (e.g. a cable, cord, string, thread, band or the like) for handing the device from a suitable external projection, e.g. a hook or ledge. The flexible wire may have a fixed length, i.e. may have both ends connected to the collapsible

structure. Alternatively, the flexible wire may have variable length, e.g. by incorporating a spool into the outer frame around which the flexible wire can be wound. In this arrangement, the flexible wire may have a free end that is extendable away from the spool and securable to an engagement portion formed elsewhere on the collapsible structure or portable electronic device. The spool may have a ratchet mechanism or the like to permit a selectable length of wire to be extended.

The outer frame may include a contact surface that lies against a back surface of the body when in the closed configuration. The contact surface may include a recess for retaining the flexible wire, e.g. in examples without a storage spool. The contact surface may be formed from a resilient deformable material (e.g. silicone rubber) to permit the cable to pass through the outer frame even when the collapsible structure is in the closed configuration. By using a deformable contact surface, there may be no

restriction on where the cable exits the outer frame, which enables use with a variety of exposed cable lengths .

According to a third aspect of the invention, there is provided a rim for a portable electronic device, the rim comprising a collapsible structure mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the collapsible structure being movable between a closed configuration and an open configuration, wherein the collapsible structure comprises a plurality of folding elements pivotably connected in series, the plurality of folding elements including: an outer frame that provides an external side surface of the body when in the closed

configuration, and an inner frame pivotably connected to the body, wherein in the closed configuration the plurality of folding elements are concertina folded to lie flat against a plane of the body, wherein in the open configuration the plurality of folding elements lie away from the body (e.g. out of the plane of the body) to define a support structure for the portable electronic device. Features described above with respect to the first aspect may also be incorporated into the second aspect. Herein, the term "support structure" may mean a structure that is capable of holding the rest of the portable electronic device (and in particular a display on the portable electronic device) in a fixed position relative to an external objection, such as a surface (e.g. table top) or ledge, etc.

For example, the support structure may comprise a base for resting on an external surface, and a support strut at an oblique angle relative to the base, the support strut being arranged to support the body in an angled position relative to the external surface. The outer frame may form the base and the inner frame may form the support strut or vice versa. The outer frame (or inner frame) may be securable to the body in the open configuration to fix the body in the angled position.

In another example, the support structure can comprise a clamp for securing the body to an external object. The clamp may be formed between the outer frame and the body, i.e. the outer frame may be pivotable towards the body to receive the external object in a gap therebetween. The collapsible structure may include a locking mechanism (discussed below) whereby the relative position of the outer frame and the body can be selectively fixed, e.g. to clamp against objects of differing sizes.

In another example, the support structure may comprise a head mount for securing the body to a user, e.g. to a part of the user's body, i.e. a limb, torso, head, etc. In this example, the plurality of folding elements may define an aperture or enlarged frame for fitting over or on a user' s head when in the open configuration.

Any of the aspects outlined above may have one or more of the following features.

The inner frame may comprise a pair of arms, each of the pair of arms being pivotably attached to the body at a first end thereof and being pivotably attached to the outer frame at a second end thereof. The arms may be independent, or may be connected to each other by a beam. The beam may also provide one of the external side surfaces of the body when in the closed configuration. In this arrangement, the outer frame may comprise a three-sided, e.g. C-shaped, structure formed from: a pair of opposing laterally extending beams, each of which is pivotably connected at a proximal end to a second end of a respective one of the pair of arms, and a longitudinally extending beam that extends orthogonally to the laterally extending beams between a distal end of each of the laterally extending beams. The C-shaped structure may mate with (i.e. become aligned with) the beam of the inner frame in the closed configuration to form a complete oblong external surface of the rim.

Alternatively, the outer frame may be a complete oblong providing all external side surface of the body when in the closed configuration. The oblong may be formed from a pair of opposing lateral beams and a pair of opposing longitudinal beams. Each of the pair of arms of the inner frame may nest inside a respective one of the pair of opposing lateral beams in the closed configuration.

Each of the pair of arms of the inner frame can be connected to the body at a first rotating joint arranged to allow the inner frame to pivot out of a plane of a back surface of the body. The first rotating joint may comprise a friction bearing arranged to resist rotation of the inner frame relative to the body. In other words, the inner frame tends to stay at the angle to which it is rotated. Each of the pair of arms may be connected to the outer frame at a second rotating joint arranged to allow a plane defined by the outer frame to rotate relative to a plane defined by the inner frame. The second rotating joint may be arranged to permit the plane defined by the outer frame to rotate through an angle of more than 180° relative to the plane defined by the inner frame. The second rotating joint may be lockable to fix the angle between the plane defined by the outer frame and the plane defined by the inner frame. This locking structure may also be arranged to fix the outer frame when it is used to clamp an external object against another part of the rim or the portable electronic device. Alternatively or additionally the second rotating joint may comprise a friction bearing arranged to resist rotation of the outer frame relative to the inner frame. The first rotating joint (i.e. a hinge or pivot between the inner frame and the body) may include a recessed port extending along the rotation axis for receiving an electrical connector (e.g. pin or jack) of a peripheral input/output device (e.g. headphones, computer mouse, keyboard, etc.). The recessed port may have internal electrical terminals which enable signals to be communicated between the portable electronic device and the peripheral device. For example, the recessed port may be a mono or stereo audio jack socket.

Where the outer frame is used to clamp against an external objection, it may include a contact surface which lies against a back surface of the body when in the closed configuration, the contact surface being formed from a resiliently deformable material.

According to a fourth aspect of the invention, there is provided a rim for a portable electronic device, the rim comprising an outer frame pivotably mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the outer frame being movable between a closed configuration and an open configuration, wherein the outer frame provides an external side surface of the body when in the closed configuration, wherein the outer frame is separable into two frame portions at a discontinuity therein, and wherein in the open configuration the outer frame is resiliently deformable to receive and grip an object in a gap formed between the frame portions. Where applicable, features discussed above with respect to the other aspects may also be applicable to the fourth aspect. In this aspect, the outer frame may form a pincer-like structure for gripping an external object.

The outer frame may thus comprise a three-sided C-shaped structure formed from: a pair of opposing laterally extending beams, each of which is pivotably connected at a proximal end to the body, and a pair of longitudinally extending beams, each of which extends orthogonally to a respective one of the laterally extending beams between a distal end of each of the laterally extending beams at the discontinuity. The pair of longitudinally extending beams can be biased into abutment at the discontinuity, e.g. by formed them from a resiliently deformable material. Additionally or alternatively, the pair of longitudinally extending beams can include mutually attracting magnetic elements arranged to retain the pair of longitudinally extending beams together at the discontinuity.

In one embodiment of this aspect, the outer frame may be pivotably mounted directly on the body via a rotating joint. The rotating joint may be lockable (e.g. as discussed above) to fix the angle between a plane defined by the outer frame and a plane of the body.

According to a fifth aspect of the present invention there is provided a rim for a portable electronic device, the rim comprising a collapsible structure mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the collapsible structure being movable between a closed configuration and an open configuration, wherein the collapsible structure comprises a plurality of pivotably connected folding elements, the plurality of folding- elements including: an outer frame that provides an external side surface of the body when in the closed configuration, an inner frame pivotably connected to the outer frame, and a game controller portion mounted on the inner frame, wherein in the closed configuration the plurality of folding elements are folded to lie flat against a plane of the body, wherein in the open configuration the outer frame is folded away from the body and inner frame is folded out of the plane of the outer frame whereby the inner frame and the game controller portion form a hand grippable structure. Where applicable, features discussed above with respect to the other aspects may also be applicable to the fifth aspect. In this aspect, the rim contains the user interface structures, e.g. buttons,

trackpads, joypads, trigger switches, etc. typically found on a game controller, whereby the rim enables the portable electronic device to be transformed into a handheld gaming device .

In this aspect, the outer frame may comprise a three- sided C-shaped structure formed from: a pair of opposing laterally extending beams, each of which is pivotably

connected at a proximal end to the body, and a longitudinally extending beam that extends orthogonally to the laterally extending beams between a distal ends of the laterally extending beams. The inner frame may comprise a support strut pivotably mounted on one of the pair of laterally extending beams, wherein the support strut is arranged to lie flat against its laterally extending beam in the closed

configuration and at an oblique angle to its laterally extending beam in the open configuration. There may be a pair of support struts (one of each of the laterally extending beams) to provide a hand grip for each hand.

The game controller portion may include a first portion pivotably connected at one end to the outer frame and slidably mounted at another end on the support strut, whereby the first portion of the game controller portion is arranged to adopt an angled position relative to the outer frame when the support strut is at an oblique angle to its laterally extending beam. The first portion may have thumb-operable buttons mounted on it .

The game controller may include a second portion aligned with the support strut. The second portion may have finger buttons (e.g. a trigger switch) mounted on it. Electrical signals from the game controller portion may be carried through the pivot connection between the game controller portion and the outer frame.

In some of the aspects discussed above, the collapsible structure comprises a plurality of folding elements that are pivotably connected in series. The disclosure herein also contemplates examples corresponding to each aspect above in which the collapsible structure comprises a single element pivotably connected to the body, e.g. an outer frame that is movable between an open and closed configuration.

BRIEF DESCRIPTION OF THE DRAWINGS Examples of the invention are described in more detail below with reference to the accompanying drawings, in which:

Figs. 1A, IB, 1C and ID show different stages in the expansion of a detachable rim that is an embodiment of the invention to an expanded configuration in which it acts as a stand for a portable electronic device;

Figs. 2A and 2B show different stages in the retraction of a detachable rim that is another embodiment of the

invention to a retracted configuration in which it provides a storage compartment for a portable electronic device;

Fig. 2C is a close-up view of part of the rim shown in

Fig. 2B in a retracted configuration; Figs. 3A, 3B, 3C and 3D show different stages in the expansion of a detachable rim that is another embodiment of the invention to an expanded configuration in which it acts as a stand for a portable electronic device having a keyboard;

Figs. 4A, 4B, 4C and 4D show different stages of converting a detachable rim that is another embodiment of the invention between different expanded configurations suitable for use with a detachable keyboard accessory;

Figs. 5A and 5B show a detachable rim that is another embodiment of the invention in an expanded configuration where is acts as a clip-type attachment accessory;

Fig. 5C is a close-up view of a rotating joint between folding elements in the detachable rim shown in Fig. 5A;

Figs. 6A, 6B and. 6C show different configurations of a locking mechanism for the rotating joint shown in Fig. 5C;

Figs. 7A and 7B show a detachable rim that is another embodiment of the invention in an expanded configuration where it provides a hanging cable;

Figs. 8A, 8B and 8C show a detachable rim that is another embodiment of the invention in an expanded configuration where it acts as a clip-type attachment accessory;

Figs. 9A, 9B, 9C, 9D and 9E show different stages in the expansion of a detachable rim that is another embodiment of the invention to an expanded configuration in which it acts as a grip for securing a portable electronic device to a user' s arm;

Figs. lOA and 10B show different stages in the expansion of a detachable rim that is another embodiment of the

invention to an expanded configuration in which it acts as a frame for mounting a portable electronic device to a user' s head; and

Figs. 11A, 11B, llC, 11D and HE show different stages in the expansion of a detachable rim that is another embodiment of the invention to an expanded configuration in which it provides a game controller for a portable electronic device.

DETAILED DESCRIPTION; FURTHER OPTIONS AND PREFERENCES

Fig. 1A shows a portable electronic device 100 (which is a smartphone in this example although the invention is applicable to any portable device) having a peripheral rim 102 around its side edges. The peripheral rim 102 is detachable and can be moved between a closed configuration (shown in Fig. 1A) and an open configuration (discussed below) .

As shown in Fig. IB, the peripheral rim 102 in this example comprises a collapsible structure made from a pair of folding elements 104, 106. A first folding element 104 comprises an outer frame which provides the external surface of the peripheral rim 102 when in the closed configuration. A second folding element 106 comprises an arm that lies along an inside edge of the outer frame. The arm is connected at a first end 110 to a corner 112 of the outer frame and is connected at a second end 114 to a body 108 of the portable electronic device. The second folding element can include another arm (not shown) that lies along the opposite inside edge of the outer frame, whereby the arms together provide a pair of parallel struts to connect the outer frame to the body 108 of the portable electronic device.

The peripheral rim 102 may be integrally formed with the portable electronic device 100, in which case the body 108 is part of the portable electronic device 100 itself. However, in one example, the peripheral rim 102 is a separate component (e.g. a protective cover) that is mounted on to the portable electronic device 100. In this example, the body 108 is a portion of the separate component that remains mounted on and secured to the portable electronic device 100 when the pair of folding elements 104, 106 are detached.

The connection between the first end 110 of the arm and the outer frame and the connection between the second end 114 of the arm and the body 108 each comprises a rotating joint, e.g. a hinge, bearing or pivot (not shown) . As shown in Fig.

1C and ID, the rotating joint at the first end 110 of the arm permits rotation through an angle of more than 180° to allow a distal longitudinal edge 116 of the outer frame to fold back towards the body 108 of the portable electronic device. The body 108 include a recessed portion 118 shaped to receive the distal longitudinal edge 116 (as shown in Fig. ID), whereby the pair of folding elements 104, 106 form a support bracket to hold the portable electronic element at an oblique angle relative to a surface on which one of the folding elements 104, 106 is resting. In this example, the peripheral rim 102 and portable electronic resemble a triangular prism. In the example shown in Figs. 1A, IB, 1C and ID, the collapsible structure provides a stand for the portable electronic device which allows it to be supported at an oblique angle with respect to a support surface (e.g. table top, desk or the like) without requiring the user to hold it.

Figs. 2A, 2B and 2C show another example of a collapsible rim structure. In this example, the collapsible structure is used to provide a storage compartment around the side edges (periphery) of the portable electronic device.

Thus, Fig. 2A shows a portable electronic device 200

(which is a smartphone in this example although the invention is applicable to any portable device) having a peripheral rim 202 around its side edges. The peripheral rim 202 is

detachable and can be moved between an open configuration (shown in Fig. 2A) and a closed configuration (shown in Fig.

2B) . Similarly to the example described above, the peripheral rim 202 comprises a collapsible structure made from a pair of folding elements 204, 206. A first folding element 204 comprises a three-sided outer frame which provides three external edges 207 of the peripheral rim 202 when in the retracted configuration. A second folding element 206 comprises a three-sided inner frame that provides the fourth external edge 205 of the peripheral rim 202 when in the retracted configuration and a pair of parallel arms 209 which nest inside the outer frame. The arms 209 are connected at a first (proximal) end 210 thereof to a body 208 of the portable electronic device and at a second (distal) end 214 thereof to a respective corner 212 of the outer frame.

The connection between the proximal end 210 of each arm and the body 208 and the connection between the distal end 214 of each arm and the outer frame each comprises a rotating joint, e.g. a hinge, bearing or pivot (not shown) . As shown in Fig. 2A, the rotating joints allow the inner frame to pivot away from (at an angle relative to) the back surface of the body 208 and permit the outer frame to pivot relative to the inner frame. In the open configuration shown in Fig. 2A, the outer and inner frames may function as a stand for the portable electronic device. However, in this example they also permit access to a storage compartment that runs around all or part of the periphery of the body 208. The storage compartment may be configured to receive and store a cable for use with the portable electronic device. In this example, the cable 216 is for a pair of headphones 218 and includes a cable-mounted controller 220, e.g. for selecting a track or controlling volume.

One end of the cable 216 is connected to the body 208. This connection may be permanent, i.e. the cable may be an integral part of the body 208, or it may be detachable, e.g. using a conventional pin and socket arrangement. The cable may be stowable in the storage compartment by winding the cable around a flange (not shown) that projects from the back surface of the body 208 and defines an inner surface of the storage compartment. When the inner and outer frames are collapsed back in on to the back surface of the body 208, a gap exists between the flange and the inner surface of the inner frame.

The outer frame 204 has a distal longitudinal edge that is formed with a central depression 222 to facilitate opening of the collapsible structure from the retracted configuration shown in Fig. 2B. The collapsible structure may be

retainable, securable or lockable in the retracted

configuration. For example, there may be an interference fit between the adjacent surfaces of the inner and outer frame. Or the rotating joints may be a locking mechanism or may be biased towards the closed (retracted) configuration.

In this example, the inward facing surfaces 224 of the external edges 207 of the outer frame, i.e. the surface that abut the body 208 in the retracted configuration, are made from a resiliently deformable material, e.g. a suitable elastomer or silicone. As shown in Fig. 2C the inward facing surface 224 can deform to provide an exit hole 226 for the cable 216 at any point around the periphery of the portable electronic device, whilst otherwise maintain contact between the body 208 and the peripheral rim 202.

Figs. 3A, 3B, 3C and 3D show another example of a collapsible rim structure. In this example, the collapsible structure is used to provide a storage compartment for a foldable keyboard when in a retracted (collapsed or closed) configuration and to provide a stand to support the portable electronic device at an oblique angle suitable for use with the keyboard accessory when in an expanded (open)

configuration . Thus, Fig. 3Ά shows a portable electronic device 300 (which is a tablet computer in this example although the invention is applicable to any portable electronic device) having a peripheral rim 302 around its side edges. The peripheral rim 302 is shown as partly detached in Fig. 3A, but it can be understood that it is folded to lie flush with the back surface of the portable electronic device 300 in a similar manner to the embodiments discussed above.

The peripheral rim is moved between an expanded or open configuration (shown in Fig. 3D) and a retracted (or closed) configuration. Similarly to the example described above, the peripheral rim 302 comprises a collapsible structure made from a pair of folding elements 304, 306. A first folding element 304 comprises an outer frame which provides the external edges of the peripheral rim 302 when in the retracted configuration.

A second folding element 306 comprises a pair of parallel arms that are disposed along an opposing lateral (short) edges of the outer frame. Each arm is connected at a first end 310 to a corner 312 of the outer frame and is connected at a second end 314 to a body 308 of the portable electronic device. The pair of arms thus provide parallel struts to connect the outer frame to the body 308 of the portable electronic device.

The connection between the first end 310 of each arm and the outer frame, and the connection between the second end 314 of each arm and the body 308 each comprises a rotating joint, e.g. a hinge, bearing or pivot (not shown) . As shown in Figs. 3B and 3C, the rotating joints allow the pair of arms to pivot away from (i.e. be disposed at an angle relative to) the back surface of the body 308 and permit the outer frame to pivot relative to the pair of arms through an angle of more than 180° to allow a distal longitudinal edge 316 of the outer frame (i.e. the "free" edge of the outer frame) to fold back towards the body 308 of the portable electronic device. The body 308 can include an engagement feature (not shown) that is attached to the distal longitudinal edge 316 to secure the structure in the expanded (open) configuration shown in Fig. ID. In this configuration, the pair of folding elements 304, 306 form a support bracket to hold the portable electronic element at an oblique angle relative to a surface on which one of the folding elements 304, 306 is resting. In this example, the outer frame is arranged to retain a foldable keyboard accessory 303. The back surface of the body 308 includes a recess that is sized to receive the keyboard accessory (in a folded configuration) when the peripheral rim 302 is in the retracted (closed) configuration. Upon opening the peripheral rim 302, as shown in Figs. 3B and 3C, the keyboard accessory 303 can be unfolded to lie in front of the distal longitudinal edge 316 when the peripheral rim 302 is in the expanded (open) configuration. The keyboard accessory 303 may be permanently connected to the outer frame, e.g. by a suitable rotating joint, or it may be a detachable standalone unit. The keyboard accessory may communicate with the portable electronic device wirelessly, e.g. using the Bluetooth® protocol or the like.

Figs. 4A, 4B, 4C and 4D show another example of a collapsible rim structure for use with a keyboard accessory. Features in common with the example shown in Figs. 3A, 3B, 3C and 3D are given the same reference numbers and are not described again. In this example, the collapsible rim structure can adopt two different open (expanded)

configurations. Fig. 4A shows a first open configuration, which is similar to Fig. 3D, where one side of the body 308 lies on the distal longitudinal edge 316 of the outer frame. Figs. 4B and 4C show the transition to a second open

configuration. In Fig. 4B the body 308 is rotated relative to the second end 314 of the pair of arms so that it is angled in a direction opposite to that of the first open configuration. In Fig. 4C, the outer frame (first folding element 304) is rotated at its corners 312 around the first ends 310 of the pair of arms. As shown in Fig. 4D, in the second open configuration the outer frame provides a support for resting on a surface, and the pair of arms act as struts for holding the body 308 away from (over) the outer frame. To secure the collapsible rim structure in this configuration, the rotating joints at each end of the pair of arms is lockable or

otherwise securable as discussed below.

Figs. 5A, 5B and 5C show another example of a collapsible rim structure. In this example, the collapsible structure is used to provide a clip or clamp for attaching a portable electronic device to an external structure. Thus, Fig. 5A shows a portable electronic device 500 (which is a smartphone in this example although the invention is applicable to any portable electronic device) having a detachable peripheral rim 502. The peripheral rim 502 is shown in a detached position ready for use as a clamp in Fig.

5A, but it can be understood that it is folded to lie flush with the back surface of the portable electronic device 500 in a similar manner to the embodiments discussed above.

The peripheral rim is moved between an expanded or open configuration (shown in Fig. 5A) and a retracted (or closed) configuration. Similarly to the examples described above, the peripheral rim 502 comprises a collapsible structure made from a pair of folding elements 504, 506. A first folding element 504 comprises an outer frame which provides the external edges of the peripheral rim 502 when in the retracted configuration.

A second folding element 506 comprises a pair of parallel arms that are disposed along opposing lateral (short) edges of the outer frame. These arms nest inside the edges of the outer frame when the rim structure is collapsed to the retracted (closed) configuration. Each arm is connected at a first end 510 to a corner 512 of the outer frame and is connected at a second end 514 to a body 508 of the portable electronic device. The pair of arms thus provide parallel struts to connect the outer frame to the body 508 of the portable electronic device.

The connection between the first end 510 of each arm and the outer frame comprises a lockable rotating joint 513 that is discussed in more detail below with respect to Figs. 6A, 6B and 6C . The connection between the second end 514 of each arm and the body 508 also comprises a rotating joint, e.g. a hinge, bearing or pivot (not shown) . The rotating joints allow the pair of arms to pivot away from (i.e. be disposed at an angle relative to) the back surface of the body 508 and permit the outer frame to pivot relative to the pair of arms so that it lies at an angle, e.g. substantially

perpendicularly to the plane of the body 508. In this arrangement, a clamping gap 519 is formed between a distal longitudinal edge 516 of the outer frame and a corresponding longitudinal edge 517 of the body 508. As shown in Fig. 5B, the clamping gap 519 may be used to attach the device to an external object 521, such as a beam or shelf. Fig. 5C shows a close up view of a proximal edge 523 of the outer frame. Control buttons 526 are provided on the outer frame for controlling the portable electronic device (e.g. provided volume control or sleep functionality, as is conventional) . The rotating joint 513 comprises a

longitudinally extending pin 528 at each corner 512. The pins 528 lie on a rotation axis. In order to provide the clamping functionality, the pins can be locked in any angular position. The locking mechanism is contained within the outer frame, and is shown in Figs. 6Ά, 6B and 6C.

Figs. 6A, 6B and 6C show a locking mechanism for the rotating joint in three configurations. Fig. 6A shows an open configuration in which rotation is permitted. Fig. 6B shows a counterclockwise locked, configuration, in which

counterclockwise rotation is resisted. Fig. 6C shows a clockwise locked configuration, in which clockwise rotation is resisted. The locking mechanism comprises a toothed ring 530, that is secured to and rotatable with the pin 528, and a pawl element 532 which is engagable with the toothed ring under the control of switch lever 534. The pawl element 532 is attached inside the outer frame to pivot about an axis 536 defined by a pin. The switch lever 534 includes a finger (not shown) that engages the pawl element 532 to move it between the positions. The switch lever 534 protrudes out from the outer frame, where it is operable by the user.

In Fig. 6A the switch lever 534 is in a central position whereby the pawl element 532 is disengaged from the toothed ring 530. The pin is therefore free to rotate relative to the outer frame.

In Fig. 6B the switch lever 534 is in an upper position whereby the pawl element 532 is engaged with the toothed ring 530 to resist counterclockwise rotation of the pin relative to the outer frame.

In Fig. 6C the switch lever 534 is in a lower position whereby the pawl element 532 is engaged with the toothed ring

530 to resist clockwise rotation of the pin relative to the outer frame.

As discussed above, the inward facing surfaces 524 of the external edges of the outer frame, and in particular the surfaces that may abut the body 508 in the clamping

configuration, are made from a resiliently deformable material, e.g. a suitable elastomer or silicone. This may facilitate obtaining a good grip on the external object 521.

Figs. 7A and 7B show another example of a collapsible rim structure. In this example, the collapsible structure is used to store a flexible wire or cord for hanging the portable electronic device from a suitable external projection.

Thus, Fig. 7A shows a portable electronic device 700 (which is a smartphone in this example although the invention is applicable to any portable electronic device) having a detachable peripheral rim 702. The peripheral rim 702 is shown in a detached configuration ready to deploy a flexible wire 701 in Fig. 7A, but it can be understood that it is folded to lie flush with the back surface of the portable electronic device 700 in a similar manner to the embodiments discussed above.

The peripheral rim 702 is moved between an expanded or open configuration (shown in Fig. 7A) and a retracted (or closed) configuration. Similarly to the examples described above, the peripheral rim 702 comprises a collapsible

structure made from a pair of folding elements 704, 706. A first folding element 704 comprises a three-sided outer frame which provides three external edges of the peripheral rim 702 when in the retracted configuration. A second folding element 706 comprises a three-sided inner frame that provides the fourth external edge of the peripheral rim 702 when in the retracted configuration and a pair of parallel arms 709 which nest inside the outer frame. The arms 709 are connected at a first (proximal) end 710 thereof to a respective corner 712 of the outer frame and at a second (distal) end 714 thereof to a body 708 of the portable electronic device.

The connection between the proximal end 710 of each arm and the outer frame and the connection between the distal end 714 of each arm and the body 708 each comprises a rotating joint, e.g. a hinge, bearing or pivot (not shown) . As shown in Fig. 7A, the rotating joints allow the inner frame to pivot away from (at an angle relative to) the back surface of the body 208 and permit the outer frame to pivot relative to the inner frame.

In this example, the outer frame includes a recessed channel 721 around its inwardly facing surface, i.e. around the surface that abuts the back side of the body 708 in the retracted (closed) configuration. The recessed channel 721 is arranged to receive a flexible wire or cord 701 which is attached at its opposing ends to a respective corner 712 of the outer frame. As shown in Fig. 7B, the flexible wire 701 may be released from the channel when the peripheral rim is in the open configuration whereby the portable electronic device can be hung on a suitable projection, e.g. hook or the like.

Figs. 8A, 8B and 8C show another example of a collapsible rim structure. In this example, the collapsible structure is used to provide a clip or clamp for attaching a portable electronic device to an external structure.

Thus, Fig. 8A shows a portable electronic device 800 (which is a smartphone in this example although the invention is applicable to any portable electronic device) having a detachable peripheral rim 802. The peripheral rim 802 is shown in a detached position ready for use as a clamp in Figs. 8A and 8B, but it can be understood that it is folded to lie flush with the back surface of the portable electronic device 800 in a similar manner to the embodiments discussed above.

The peripheral rim is moved between an expanded or open configuration (shown in Fig. 8B) and a retracted (or closed) configuration. In this example, the peripheral rim comprises a folding frame 804 that is connected at a first end 814 to a body 808 of the portable electronic device. The connection between the first end 814 of the folding frame 804 and the body 808 comprises a rotating joint, e.g. a hinge, bearing or pivot (not shown) . The rotating joints allow the folding frame 804 to pivot away from (i.e. be disposed at an angle relative to) the back surface of the body 808.

As shown in Fig. 8B, in this example the folding frame

804 is formed from two parts which are separable to form a gap

805 on a distal longitudinal edge 816. The folding frame is made from a rigid resiliently deformable material which acts to urge the two parts of the folding frame together to close the gap. This enables the folding frame 804 to be used as a clamp to attach the device to an external object 821, such a beam or rail, as shown in Fig. 8C.

Figs. 9A, 9B, 9C, 9D and 9E show another example of a portable electronic device having a collapsible rim structure. In this example, the collapsible rim structure is used to provide a gripping element suitable for attaching the device to the wrist of a user.

Thus, Fig. 9A shows a portable electronic device 900 (which is a smartphone in this example although the invention is applicable to any portable device) having a peripheral rim

902 around its side edges. The peripheral rim 902 is detachable and can be moved between a retracted (closed) configuration (shown in Fig. 9Ά) and an expanded configuration (see e.g. Figs. 9C and 9D) .

The peripheral rim 902 in this example comprises a collapsible structure made from an outer frame 904 and a pair of flexible chain-like connectors 906. The outer frame 904 provides the external surface of the peripheral rim 902 when in the retracted configuration. Each chain-like connector 906 is arranged to lie along an inside edge of the outer frame 904

(along opposing short edges in this example) . Each chain-like connector 906 comprises a plurality of element pivotally connected in series to form a flexible chain. Each chain-like connector 906 is connected at a first end 910 to a corner 912 of the outer frame and is connected at a second end 914 to a body 908 of the portable electronic device. The pair of chain-like connectors 906 together provide a pair of parallel struts to connect the outer frame to the body 908 of the portable electronic device.

The connection between the first end 910 of each chainlike connector 906 and the outer frame 904 and the connection between the second end 914 of each chain-like connector 906 and the body 908 each comprises a rotating joint, e.g. a hinge, bearing or pivot (not shown) . As shown in Figs. 9C and 9D, these rotating joints act in combination with the flexible chain-like connectors 906 to permit the outer frame 904 to fold back behind the body 908 of the portable electronic device to define a clamping gap 911. As shown in Fig. 9E, the portable electronic device may be secured to an external object (e.g. a user's wrist) by clamping the object in the gap

911 between the body 908 and outer frame 904.

Similarly to the example discussed above with respect to Figs. 5A, 5B and 5C, the rotating joints may be lockable to secure the structure in the open configuration.

Figs. 10A and 10B show another example of a collapsible rim structure. In this example, the collapsible structure is used to mount the portable electronic device on the head of a user .

Thus, Fig. 10A shows a portable electronic device 1000 (which is a smartphone in this example although the invention is applicable to any portable device) having a peripheral rim

1002 around its side edges. The peripheral rim 1002 is detachable and can be moved between an expanded or open configuration (shown in Fig. 10B) and a retracted

configuration. The peripheral rim 1002 is shown in an intermediate position in Fig. 10A, but it can be understood that it is foldable to lie flush with the back surface of the portable electronic device 1000 in a similar manner to the embodiments discussed above.

In this example, the peripheral rim 1002 comprises a collapsible structure made from, a plurality of folding elements 1004, 1005, 1006, 1007 connected in series. A first folding element 1004 comprises a three-sided outer frame which provides three external edges of the peripheral rim 1002 when in the retracted configuration. A second folding element 1006 comprises a three-sided inner frame that provides the fourth external edge 1009 of the peripheral rim 1002 when in the retracted configuration and a pair of parallel arms which nest inside the outer frame. The arms are connected at a first (proximal) end 1010 thereof to a body 1008 of the portable electronic device. The first and second folding elements

1004, 1006 are connected to each other by a scissor hinge

1005, 1007. Thus, each arm of the second folding element is connected at a second (distal) end 1014 thereof to a first member 1007 of the scissor hinge and a proximal end 1012 of the outer frame 1004 is connected to a second member 1005 of the scissor hinge.

Each connection comprises a rotating joint, e.g. a hinge, bearing or pivot (not shown) . One or more of the rotating joint may be lockable to fix the shape of the collapsible frame in the open (expanded) configuration.

As shown in Fig. 10B, the rotating joints allow the outer frame 1004 to extend away from the body, whereby an aperture for mounting on a user's head is defined by the outer frame, the scissor hinges and the fourth external edge 1009 on the inner frame. Figs. 11A, 11B, 11C, 11D and HE show another example of a portable electronic device having a collapsible rim

structure. In this example, the collapsible rim structure is used to provide a game controller.

Thus, Fig. HA shows a portable electronic device 1100

(which is a tablet in this example although the invention is applicable to any portable device) having a peripheral rim 1102 around its side edges. The peripheral rim 1102 is detachable and can be moved between a retracted (closed) configuration and an expanded configuration (see e.g. Figs.

11D and HE) . The peripheral rim 1102 is shown in a partially open position in Fig. HA, but it can be understood that it is foldable to lie flush with the back surface of the portable electronic device 1100 in a similar manner to the embodiments discussed above.

The peripheral rim 1102 in this example comprises a collapsible structure made from an outer frame 1104 and a pair of hand grips 1106 which are movable between a flat position in which they lie flush with the outer frame 1104 and a protruding position in which they are grippable by a user for game play. The outer frame 1104 provides the external surface of the peripheral rim 1102 when in the retracted

configuration. Each hand grip 1106 is arranged to lie along an inside edge of the outer frame 1104 (along opposing short edges in this example) . Each hand grip 1106 comprises a support strut 1107 and a hinged controller portion 1109. The hinged controller portion 1109 has a central hinge axis that is slidably attached to a respective support strut 1107. The controller portion 1109 is attached to the outer frame 1104 at a connection hinge 1115. A first end of the support strut is pivotally connected to the outer frame 1104 and a second end of the support strut is free. The support strut can thus pivot away from the outer frame 1104, whereupon the central hinge of its respective controller portion 1109 can be slid along the support strut to its free end to move the hand grip

1106 into the protruding position. The central hinge may be securable at the free end, e.g. using a releasable latch or the like.

Meanwhile, the outer frame 1104 is pivotally connected at one end to a body 1108 of the portable electronic device via a rotating joint, e.g. a hinge, bearing or pivot (not shown) . As shown in Figs. 11B, 11C and 11D, these rotating joints act to permit the outer frame 1104 to fold back to lie

substantially coplanar with and underneath the body 1108. A user may reach behind the body to access the game controls on the controller portions 1109. The game controls may include thumb-operable buttons 1111 on a first part of the controller portion 1109 that extends away from the outer frame 1104 and a finger operated trigger button 1113 on a second part of the controller portion 1109 that lies along the support strut 1107. Control signals from the buttons 1111, 1113 are sent to the portable electronic device through electrical connections formed in the connection hinge 1115.

Claims

1. A rim for a portable electronic device, the rim comprising a collapsible structure mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the collapsible structure being movable between a closed configuration and an open configuration,

wherein the collapsible structure comprises a plurality of folding elements pivotably connected in series, the plurality of folding elements including:

an outer frame that provides an external side surface of the body when in the closed configuration, and

an inner frame pivotably connected to the body, wherein in the closed configuration the plurality of folding elements are concertina folded to lie flat against the body,

wherein in the open configuration the outer frame is detached from the body, and

wherein in the closed configuration the collapsible structure defines an enclosed storage recess around the periphery of the body.

2. A rim according to claim 1, wherein the body includes an upstanding flange around its back surface, wherein the plurality of folding elements define an aperture which fits over the upstanding flange when in the closed

configuration, wherein the enclosed storage recess is formed by a gap between the inner surface of the aperture and the upstanding flange.

3. A rim according to claim 2, wherein the upstanding flange is arranged to have a cable wound around it.

4. A rim according to claim 1, wherein the storage recess is shaped to receive a foldable keyboard accessory.

5. A rim for a portable electronic device, the rim comprising a collapsible structure mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the collapsible structure being movable between a closed configuration and an open configuration,

wherein the collapsible structure includes a flexible wire stowable in the outer frame, the flexible wire being deployable in the open configuration to provide a loop from which to hang the portable electronic device.

6. A rim according to claim 5, wherein the outer frame includes a contact surface that lies against a back surface of the body when in the closed configuration, and wherein the contact surface includes a recess for retaining the flexible wire .

7. A rim according to claim 5, wherein the flexible wire is retractably connected to a storage spool mounted in the outer frame.

8. A rim for a portable electronic device, the rim comprising a collapsible structure mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the collapsible structure being movable between a closed configuration and an open configuration,

an inner frame pivotably connected to the body, wherein in the closed configuration the plurality of folding elements are concertina folded to lie flat against a plane of the body,

wherein in the open configuration the plurality of folding elements lie away from the body to define a support structure for the portable electronic device.

9. A rim according to claim 8, wherein the support structure comprises a base for resting on an external surface, and a support strut at an oblique angle relative to the base, the support strut being arranged to support the body in an angled position relative to the external surface.

10. A rim according to claim 9, wherein the outer frame forms the base and the inner frame forms the support strut.

11. A rim according to claim 9, wherein the inner frame forms the base and the outer frame forms the support strut.

12. A rim according to claim 11, wherein the outer frame is securable to the body in the open configuration to fix the body in the angled position.

13. A rim according to claim 8, wherein the support structure comprises a clamp for securing the body to an external object.

14. A rim according to claim 13, wherein the clamp formed between the outer frame and the body.

15. A rim according to claim 8, wherein the support structure comprises a head mount for securing the body to a user .

16. A rim according to any preceding claim, wherein the inner frame comprises a pair of arms, each of the pair of arms being pivotably attached to the body at a first end thereof and being pivotably attached to the outer frame at a second end thereof.

17. A rim according to claim 16, wherein the inner frame includes a beam extending between the second ends of the pair of arms, the beam provide one of the external side surface of the body when in the closed configuration.

18. A rim according to claim 17, wherein the outer frame comprises a three-sided C-shaped structure formed from:

a pair of opposing laterally extending beams, each of which is pivotably connected at a proximal end to a second end of a respective one of the pair of arms, and

a longitudinally extending beam that extends orthogonally to the laterally extending beams between a distal end of each of the laterally extending beams.

19. A rim according to claim 16, wherein the outer frame is an oblong providing all external side surface of the body when in the closed configuration, wherein the oblong is formed from a pair of opposing lateral beams and a pair of opposing longitudinal beams, and wherein each of the pair of arms nests inside a respective one of the pair of opposing lateral beams in the closed configuration.

20. A rim according to any one of claims 16 to 19, wherein each of the pair of arms is connected to the body at a first rotating joint arranged to allow the inner frame to pivot out of a plane of a back surface of the body.

21. A rim according to claim 20, wherein the first rotating joint comprise a friction bearing arranged to resist rotation of the inner frame relative to the body.

22. A rim according to any one of claims 16 to 21, wherein each of the pair of arms is connected to the outer frame at a second rotating joint arranged to allow a plane define by the outer frame to rotate relative to a plane defined by the inner frame.

23. A rim according to claim 22, wherein the second rotating joint is arranged to permit the plane defined by the outer frame to rotate through an angle of more than 180° relative to the plane defined by the inner frame.

24. A rim according to claims 22 or 23, wherein the second rotating joint is lockable to fix the angle between the plane defined by the outer frame and the plane defined by the inner frame.

25. A rim according to any one of claims 22 to 24, wherein the second rotating joint comprise a friction bearing arranged to resist rotation of the outer frame relative to the inner frame.

26. A rim according to any preceding claim, wherein the outer frame includes a contact surface that lies against a back surface of the body when in the closed configuration, the contact surface being formed from a resiliently deformable material .

27. A rim for a portable electronic device, the rim comprising an outer frame pivotably mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the outer frame being movable between a closed configuration and an open configuration,

wherein the outer frame provides an external side surface of the body when in the closed configuration,

wherein the outer frame is separable into two frame portions at a discontinuity therein, and

wherein in the open configuration the outer frame is resiliently deformable to receive and grip an object in a gap formed between the frame portions.

28. A rim according to claim 27, wherein the outer frame comprises a three-sided C-shaped structure formed from:

a pair of opposing laterally extending beams, each of which is pivotably connected at a proximal end to the body, and

a pair of longitudinally extending beams, each of which extends orthogonally to a respective one of the

laterally extending beams between a distal end of each of the laterally extending beams at the discontinuity.

29. A rim according claim 28, wherein the pair of longitudinally extending beams are biased into abutment at the discontinuity .

30. A rim according to claim 28 or 29, wherein the pair of longitudinally extending beams include mutually attracting magnetic elements arranged to retain the pair of

longitudinally extending beams together at the discontinuity.

31. A rim according to any one of claims 27 to 30, wherein the outer frame is pivotably mounted on the body via a rotating joint, the rotating joint being lockable to fix the angle between a plane defined by the outer frame and a plane of the body.

32. A rim according to any one of claims 27 to 30, wherein the outer frame is pivotably mounted on the body via a rotating joint, the rotating joint comprise a friction bearing arranged to resist rotation of the outer frame relative to the body.

33. A rim for a portable electronic device, the rim comprising a collapsible structure mounted on a body, the body being secured to or integrally formed with the portable electronic device, and the collapsible structure being movable between a closed configuration and an open configuration,

wherein the collapsible structure comprises a plurality of pivotably connected folding elements, the plurality of folding elements including:

an outer frame that provides an external side surface of the body when in the closed configuration,

an inner frame pivotably connected to the outer frame, and

a game controller portion mounted on the inner frame ,

wherein in the closed configuration the plurality of folding elements are folded to lie flat against a plane of the body,

wherein in the open configuration the outer frame is folded away from the body and inner frame is folded out of the plane of the outer frame whereby the inner frame and the game controller portion form a hand grippable structure.

34. A rim according to claim 33, wherein the outer frame comprises a three-sided C-shaped structure formed from:

a longitudinally extending beam that extends orthogonally to the laterally extending beams between a distal ends of the laterally extending beams.

35. A rim according to claim 34, wherein the inner frame comprises a support strut pivotably mounted on one of the pair of laterally extending beams, wherein the support strut is arranged to lie flat against its laterally extending beam in the closed configuration and at an oblique angle to its laterally extending beam in the open configuration.

36. A rim according to claim 35, wherein the game controller portion has a first portion pivotably connected at one end to the outer frame and slidably mounted at another end on the support strut, whereby the first portion of the game controller portion is arranged to adopt an angled position relative to the outer frame when the support strut is at an oblique angle to its laterally extending beam.

37. A rim according to claim 36, wherein the game controller includes a second portion aligned with the support strut .