EP1980698A2 - Door hinge, in particular for a coldroom, with separable components and intermediate protection element - Google Patents

Door hinge, in particular for a coldroom, with separable components and intermediate protection element Download PDF

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Publication number
EP1980698A2
EP1980698A2 EP08101957A EP08101957A EP1980698A2 EP 1980698 A2 EP1980698 A2 EP 1980698A2 EP 08101957 A EP08101957 A EP 08101957A EP 08101957 A EP08101957 A EP 08101957A EP 1980698 A2 EP1980698 A2 EP 1980698A2
Authority
EP
European Patent Office
Prior art keywords
hinge
parts
portions
door
protection element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08101957A
Other languages
German (de)
French (fr)
Other versions
EP1980698A3 (en
Inventor
Paolo Casiraghi
Carlo Fabris
Fabio Pericotti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IK-INTERKLIMAT SpA
Original Assignee
IK-INTERKLIMAT SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IK-INTERKLIMAT SpA filed Critical IK-INTERKLIMAT SpA
Publication of EP1980698A2 publication Critical patent/EP1980698A2/en
Publication of EP1980698A3 publication Critical patent/EP1980698A3/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/02—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
    • E05F1/04—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights for wings which lift during movement, operated by their own weight
    • E05F1/06—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing
    • E05F1/061—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing with cams or helical tracks
    • E05F1/063—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing with cams or helical tracks with complementary, substantially identical and slidingly cooperating cam surfaces
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1207—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis
    • E05F1/1223—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis with a compression or traction spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/0054—Covers, e.g. for protection
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins
    • E05D5/12—Securing pins in sockets, movably or not
    • E05D5/121—Screw-threaded pins
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/60—Suspension or transmission members; Accessories therefore
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/638—Cams; Ramps
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Protection
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/102—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for cold-rooms

Definitions

  • the present invention relates to a coldroom door hinge in accordance with the introduction to the main claim.
  • a hinge of the stated type comprises a body usually presenting a first part and a second part.
  • the first part is fixed to the coldroom door and rotates therewith about a hinge axis, relative to which the second part is stationary, this being fixed to a doorpost about which the door moves.
  • the two parts of the hinge body move axially while the first part is rotating about the hinge axis, but are held together by a usual coupling element such as a threaded rod with a locking nut, bolt, screw or the like.
  • the movement of said hinge body parts away from each other along the hinge axis is achieved by providing, at the adjacent ends of said parts, inclined plane elements or portions which mutually cooperate.
  • the rotation of the door or rather of the first part of the hinge about the hinge axis causes the corresponding inclined plane portion to move along the inclined plane portion of the second part so that they withdraw from each other along the hinge axis.
  • An object of the present invention is to provide a hinge comprising axially separable parts in which the inclined plane portions are protected against atmospheric agents, dust, etc., which could deposit on the contacting surfaces of these portions and/or which with the passing of time could prevent correct hinge operation.
  • a particular object of the present invention is to provide a hinge of the stated type which is simple to produce and mount.
  • a hinge 1 comprising a hinge body 2 presenting a first part 3 and a second part 4.
  • the first part 3 is intended to be fixed (by known screws, not shown) to a door, in particular of a coldroom, while the second part 4 is intended to be fixed by screws 5 to a doorpost (not shown) about which said door moves (relative to a surface or floor).
  • These parts are known and are mutually associated in known manner. In this embodiment they are held together by a threaded rod 6 inserted into the second part 4 and provided with an enlarged head 7 cooperating with an end portion 8 of the first part 3 of the hinge body 2. This end portion is enclosed by a casing 9, as is the remainder of the part 3.
  • the two parts 3 and 4 of the hinge body 2 respectively present an inclined plane portion 10, 11 of known type presenting inclined plane or helical surfaces (not shown) which mutually cooperate.
  • the first and second part 3, 4 of the body 2 are axially movable along a longitudinal axis W of said body when the first part 3 rotates relative to the second 4 about said axis, during the movement of the door to which it is fixed. This rotation causes sliding of the inclined plane surfaces one on the other, leading to movement of said parts 3 and 4 away from each other along the axis W, while during door closure these parts move towards each other to reach the position shown in the figures.
  • a protection element 15 is inserted into the body 2 about said portions, this being of substantially cylindrical form with a projecting central ring or collar 16 which, when the hinge body 2 is in its rest position, lies within an annular recess 17 in the inclined plane portion 10 (or at least it juts towards said recess).
  • a preloaded compression spring 20 is present between the ring 16 and a component 18 of the first part 3 of the hinge body 2 close to the inclined plane portion 10, and is squeezed between the ring or collar 16 and said component 18 when the hinge body is in its rest position shown in the figures. Specifically, the spring 20 lies within a recess 21 provided in the component 18, in which a portion 22 of the protection element 15 also lies. A second portion 23 of this latter positioned between the ring or collar 16 and an internal part 24 of the second part 4 of the body 2 lies about the inclined plane portion 11 of this latter.
  • the described and illustrated embodiment is simple to produce and to mount.
  • the protection element By virtue of the protection element, the inclined plane portions are protected from the atmospheric agents and dust, and can be completely coated with grease or other lubricant, which is maintained in position by the element 15 itself.

Abstract

A coldroom door hinge comprises a body (2) presenting two parts (3, 4) movable relative to each other but held together by a retaining element (6), a first (3) of said parts (3, 4) being rotatable about a longitudinal axis (W) of said body and being rigid with said door, the second (4) of said parts (3, 4) being fixed to a doorpost, inclined plane portions (10, 11) being present between said parts (3, 4) to cause the first part (3) and second part (4) to separate on rotating the first part (3) about said longitudinal axis (W), this separation taking place along said axis with consequent lifting of the door from a reference surface or floor. A protection element for said portions (10, 11) is present at said portions (10, 11) or in a region of separation between the parts (3, 4) of the hinge body (2), and is disposed about said portions (10, 11) to protect these portions from dust or the like when the first part (3) and second part (4) of the hinge body (2) separate.

Description

  • The present invention relates to a coldroom door hinge in accordance with the introduction to the main claim.
  • A hinge of the stated type comprises a body usually presenting a first part and a second part. The first part is fixed to the coldroom door and rotates therewith about a hinge axis, relative to which the second part is stationary, this being fixed to a doorpost about which the door moves. The two parts of the hinge body move axially while the first part is rotating about the hinge axis, but are held together by a usual coupling element such as a threaded rod with a locking nut, bolt, screw or the like.
  • The movement of said hinge body parts away from each other along the hinge axis is achieved by providing, at the adjacent ends of said parts, inclined plane elements or portions which mutually cooperate. The rotation of the door or rather of the first part of the hinge about the hinge axis causes the corresponding inclined plane portion to move along the inclined plane portion of the second part so that they withdraw from each other along the hinge axis.
  • With a hinge of the aforesaid type there is a problem regarding the deposition of dust or the like on the inclined plane portions (in particular on their contacting surfaces) as the hinge body parts axially separate. This separation exposes the surfaces of the inclined plane portions to the air, with the consequent possibility of dust depositing on them. With time, this can impede normal hinge operation, with consequent hindering of correct door opening.
  • An object of the present invention is to provide a hinge comprising axially separable parts in which the inclined plane portions are protected against atmospheric agents, dust, etc., which could deposit on the contacting surfaces of these portions and/or which with the passing of time could prevent correct hinge operation.
  • A particular object of the present invention is to provide a hinge of the stated type which is simple to produce and mount.
  • These and other objects which will be apparent to the expert of the art are attained by a hinge in accordance with the accompanying claims.
  • The present invention will be more apparent from the accompanying drawings, which are provided by way of non-limiting example and in which:
    • Figure 1 is a front view of a hinge of the invention during its use; and
    • Figure 2 is a section on the line II-II of Figure 1.
  • With reference to said figures, these show a hinge 1 comprising a hinge body 2 presenting a first part 3 and a second part 4. The first part 3 is intended to be fixed (by known screws, not shown) to a door, in particular of a coldroom, while the second part 4 is intended to be fixed by screws 5 to a doorpost (not shown) about which said door moves (relative to a surface or floor). These parts are known and are mutually associated in known manner. In this embodiment they are held together by a threaded rod 6 inserted into the second part 4 and provided with an enlarged head 7 cooperating with an end portion 8 of the first part 3 of the hinge body 2. This end portion is enclosed by a casing 9, as is the remainder of the part 3.
  • The two parts 3 and 4 of the hinge body 2 respectively present an inclined plane portion 10, 11 of known type presenting inclined plane or helical surfaces (not shown) which mutually cooperate. Specifically, the first and second part 3, 4 of the body 2 are axially movable along a longitudinal axis W of said body when the first part 3 rotates relative to the second 4 about said axis, during the movement of the door to which it is fixed. This rotation causes sliding of the inclined plane surfaces one on the other, leading to movement of said parts 3 and 4 away from each other along the axis W, while during door closure these parts move towards each other to reach the position shown in the figures.
  • During this movement away from each other, the contacting surfaces of the inclined plane portions 10 and 11 become visible and accessible from the outside, hence in order to prevent dust or the like depositing on them and hindering correct hinge operation, according to the invention a protection element 15 is inserted into the body 2 about said portions, this being of substantially cylindrical form with a projecting central ring or collar 16 which, when the hinge body 2 is in its rest position, lies within an annular recess 17 in the inclined plane portion 10 (or at least it juts towards said recess).
  • A preloaded compression spring 20 is present between the ring 16 and a component 18 of the first part 3 of the hinge body 2 close to the inclined plane portion 10, and is squeezed between the ring or collar 16 and said component 18 when the hinge body is in its rest position shown in the figures. Specifically, the spring 20 lies within a recess 21 provided in the component 18, in which a portion 22 of the protection element 15 also lies. A second portion 23 of this latter positioned between the ring or collar 16 and an internal part 24 of the second part 4 of the body 2 lies about the inclined plane portion 11 of this latter.
  • By virtue of the invention, when the door rotates about the hinge axis W and the parts 3 and 4 of the body 2 withdraw from each other in the usual manner, the inclined plane portions 10 and 11 remain covered by the protection element 15. This rotation is facilitated by the presence of the spring 20 which tends to withdraw the part 3 from the part 4 while at the same time by pressing on the ring or collar 16 it maintains the element 15 in position on the internal part 24 of the stationary second part 4 of the body. In this manner the protection element 15 remains fixed in position, to completely protect the inclined plane portions 10 and 11.
  • The described and illustrated embodiment is simple to produce and to mount. By virtue of the protection element, the inclined plane portions are protected from the atmospheric agents and dust, and can be completely coated with grease or other lubricant, which is maintained in position by the element 15 itself.
  • A particular embodiment of the invention has been described, however others are possible in the light of the aforegoing description and are to be considered as falling within the scope of the ensuing claims.

Claims (6)

  1. A coldroom door hinge comprising a body (2) presenting two parts (3, 4) movable relative to each other but held together by a retaining element (6), a first (3) of said parts (3, 4) being rotatable about a longitudinal axis (W) of said body and being rigid with said door, the second (4) of said parts (3, 4) being fixed to a doorpost, inclined plane portions (10, 11) being present between said parts (3, 4) to cause the first part (3) and second part (4) to separate on rotating the first part (3) about said longitudinal axis (W), this separation taking place along said axis with consequent lifting of the door from a reference surface or floor, characterised in that a protection element for said portions (10, 11) is present at said portions (10, 11) or in a region of separation between the parts (3, 4) of the hinge body (2), and is disposed about said portions (10, 11) to protect these portions from dust or the like when the first part (3) and second part (4) of the hinge body (2) separate.
  2. A hinge as claimed in claim 1, characterised in that the protection element (15) presents a first portion (22) and a second portion (23), this latter disposed about the inclined plane portions (10, 11) of the two parts (3, 4) of the hinge body.
  3. A hinge as claimed in claim 1, characterised in that the protection element (15) presents, between the first and second portion (22, 23), an inner collar (16) on which a spring (20) acts to maintain said element in the position for protecting the parts (10, 11) of the hinge body (2).
  4. A hinge as claimed in claim 2, characterised in that the spring (20) lies between the collar (16) and a recess or seat provided in a component (18) of the first hinge part (3).
  5. A hinge as claimed in claim 3, characterised in that said collar (16) projects towards an annular recess (17) of said first hinge part (3).
  6. A hinge as claimed in claim 1, characterised in that the protection element is substantially cylindrical in shape.
EP08101957A 2007-04-12 2008-02-25 Door hinge, in particular for a coldroom, with separable components and intermediate protection element Withdrawn EP1980698A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20070132 ITMI20070132U1 (en) 2007-04-12 2007-04-12 "HINGE FOR DOORS, IN PARTICULAR FOR REFRIGERATED CELL, WITH SEPARABLE COMPONENTS AND INTERMEDIATE PROTECTION ELEMENT"

Publications (2)

Publication Number Publication Date
EP1980698A2 true EP1980698A2 (en) 2008-10-15
EP1980698A3 EP1980698A3 (en) 2012-10-03

Family

ID=39563335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08101957A Withdrawn EP1980698A3 (en) 2007-04-12 2008-02-25 Door hinge, in particular for a coldroom, with separable components and intermediate protection element

Country Status (2)

Country Link
EP (1) EP1980698A3 (en)
IT (1) ITMI20070132U1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE663524A (en) *
US4631777A (en) * 1982-04-26 1986-12-30 Takigen Seizou Co. Ltd. Gravity door hinge
GB2399387A (en) * 2003-03-11 2004-09-15 Laird Security Hardware Ltd Adjustable butt hinge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE663524A (en) *
US4631777A (en) * 1982-04-26 1986-12-30 Takigen Seizou Co. Ltd. Gravity door hinge
GB2399387A (en) * 2003-03-11 2004-09-15 Laird Security Hardware Ltd Adjustable butt hinge

Also Published As

Publication number Publication date
EP1980698A3 (en) 2012-10-03
ITMI20070132U1 (en) 2008-10-13

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