CA2075383C - Cushion for anatomical support, especially for the lumbar and cervical regions, to fit onto seat backs - Google Patents
Cushion for anatomical support, especially for the lumbar and cervical regions, to fit onto seat backsInfo
- Publication number
- CA2075383C CA2075383C CA002075383A CA2075383A CA2075383C CA 2075383 C CA2075383 C CA 2075383C CA 002075383 A CA002075383 A CA 002075383A CA 2075383 A CA2075383 A CA 2075383A CA 2075383 C CA2075383 C CA 2075383C
- Authority
- CA
- Canada
- Prior art keywords
- elastic plate
- curved elastic
- seat
- knob
- cushion
- 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.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 206010003246 arthritis Diseases 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/42—Support for the head or the back for the back of detachable or loose type
- A47C7/425—Supplementary back-rests to be positioned on a back-rest or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/667—Lumbar supports having flexible support member bowed by applied forces
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
- A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
- A47C7/465—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means by pulling an elastic cable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/02246—Electric motors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/663—Lumbar supports portable with attachment to the back-rest
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/666—Lumbar supports vertically adjustable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/667—Lumbar supports having flexible support member bowed by applied forces
- B60N2/6673—Lumbar supports having flexible support member bowed by applied forces with motor driven adjustments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S297/00—Chairs and seats
- Y10S297/06—Hook and loop type fastener
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/29—Rotarily connected, differentially translatable members, e.g., turn-buckle, etc.
- Y10T403/293—Rotarily connected, differentially translatable members, e.g., turn-buckle, etc. having operating mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Surgical Instruments (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Bedding Items (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
- Materials For Medical Uses (AREA)
- Adornments (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
Cushion (50) for anatomic support, especially of the lumbar and cervical regions, for mounting onto backs (42) of seats (41) generally, made from a curved elastic plate (51) having longitudinal ends connected by a posterior brace formed of a pair (55 60) of rods threaded in the opposite direction that screw into an intermediately placed cylindrical scroll (63) it being thus possible to vary the convexity of said plate (51), and therefore the extent to which the cushion projects from the seat back (42), by turning said scroll (63) in one direction or the other with the fingers or else, when the cushion is placed inside the seat back (42), by means of an external knob (44) connected to the scroll (63) by a bevel gear (66 67) and universal joints (76 78), vertical position of the cushion being determined by a cord (71) fixed to the top and bottom of said plate (51), said cord, having passed over transmission rollers (72), winds onto the drum (73) of a short shaft (74) supported by the seat back (42) and fitted with an external knob (45).
Description
207S38~
Cushion for anatomical support, especially for the lumbar and cervical regions, to fit onto seat backs The invention concerns a small cushion designed for anato-mical support especially to the lumbar and cervical regions, to be mounted onto the backs of seats.
Such small cushions are well known and are placed inside the seat backs of motor vehicles, their thickness and there-fore projection being variable to suit the needs or preferen-ces of the user.
These cushions are made by means of a device comprising a rigid structure associated to an elastic structure.
Convexity of the elastic structure in relation to the rigid structure may be obtained by a system of cams with a tie rod.
The cam is operated from outside the seat by means of a mech-anism comprising a gear wheel and worm screw and a transmis-sion shaft worked by an external knob.
The external structure consists of longitudinal metal bands crossing over transversal bands with outwardly projecting ends to ensure adequate spring.
This device is very complex and its outer surface is rough and sharp. It has therefore to be covered with a soft layer of considerable thickness.
The tie rod referred to above is involved in the curving movement of the elastic structure so that much effort is required to work the cam.
The worm screw is inserted to lessen effort when the devlce is adjusted but the knob has therefore to be given a great many turns making adjustment time far too long.
The device cannot be moved vertically from the lumber to the cervical region or in between, or adapted to the stature, needs and preferences of the user.
These drawbacks lessen the advantages of the device not only due to its cost but also for practical reasons and duration.
Subject of the present invention is a small cushion, to support the lumber-cervical regions of the back, of greatly simplified structure and operation, that can be used on the outside of the seat and moved up and down to suit the user.
According to an aspect of the invention the cushion consists of a curved elastic plate whose longitudinal ends are connected posteriorly by a centrally placed vertical brace.
Said brace is formed of a pair of aligned rods, threaded in opposite directions, that screw into an intermediate cylindrical scroll.
Convexity of said plate, and consequently thickness of the cushion and the extent to which it projects out from the surface of the seat back, can therefore be increased or lessened as desired by rotating the scroll one way or the other.
In one type of execution the cushion is placed externally to the seat back while the outer surface of the scroll is knurled and can be turned by the fingers from the outside through a specially made aperture in the outer covering of the seat back.
At the two longitudinal ends of the plate there are pairs of slits for fixing the cushion to the outside of the seat back, at the height preferred by the user, by means of vertical bands.
In another type of execution the plate is placed inside the seat back.
The scroll is connected to a first transversal shaft, projecting from the side of the seat back, by a bevel gear and a first universal joint.
A first knob is fixed to the first shaft for adjusting plate convexity from the outside.
Cushion for anatomical support, especially for the lumbar and cervical regions, to fit onto seat backs The invention concerns a small cushion designed for anato-mical support especially to the lumbar and cervical regions, to be mounted onto the backs of seats.
Such small cushions are well known and are placed inside the seat backs of motor vehicles, their thickness and there-fore projection being variable to suit the needs or preferen-ces of the user.
These cushions are made by means of a device comprising a rigid structure associated to an elastic structure.
Convexity of the elastic structure in relation to the rigid structure may be obtained by a system of cams with a tie rod.
The cam is operated from outside the seat by means of a mech-anism comprising a gear wheel and worm screw and a transmis-sion shaft worked by an external knob.
The external structure consists of longitudinal metal bands crossing over transversal bands with outwardly projecting ends to ensure adequate spring.
This device is very complex and its outer surface is rough and sharp. It has therefore to be covered with a soft layer of considerable thickness.
The tie rod referred to above is involved in the curving movement of the elastic structure so that much effort is required to work the cam.
The worm screw is inserted to lessen effort when the devlce is adjusted but the knob has therefore to be given a great many turns making adjustment time far too long.
The device cannot be moved vertically from the lumber to the cervical region or in between, or adapted to the stature, needs and preferences of the user.
These drawbacks lessen the advantages of the device not only due to its cost but also for practical reasons and duration.
Subject of the present invention is a small cushion, to support the lumber-cervical regions of the back, of greatly simplified structure and operation, that can be used on the outside of the seat and moved up and down to suit the user.
According to an aspect of the invention the cushion consists of a curved elastic plate whose longitudinal ends are connected posteriorly by a centrally placed vertical brace.
Said brace is formed of a pair of aligned rods, threaded in opposite directions, that screw into an intermediate cylindrical scroll.
Convexity of said plate, and consequently thickness of the cushion and the extent to which it projects out from the surface of the seat back, can therefore be increased or lessened as desired by rotating the scroll one way or the other.
In one type of execution the cushion is placed externally to the seat back while the outer surface of the scroll is knurled and can be turned by the fingers from the outside through a specially made aperture in the outer covering of the seat back.
At the two longitudinal ends of the plate there are pairs of slits for fixing the cushion to the outside of the seat back, at the height preferred by the user, by means of vertical bands.
In another type of execution the plate is placed inside the seat back.
The scroll is connected to a first transversal shaft, projecting from the side of the seat back, by a bevel gear and a first universal joint.
A first knob is fixed to the first shaft for adjusting plate convexity from the outside.
In one type of execution the plate slides on vertical runners fixed to the frame of the seat back and its height inside the seat back is determined by a continuous cord fixed centrally between the two longitudinal ends of the plate.
After passing over transmission rollers mounted at top and bottom of the seat back and rolling freely, said cord winds onto a drum mounted on a second transversal shaft, supported by the seat back, projecting from the side of said seat back and terminating in a second knob for purposes of adjustment.
The scroll is connected to the first transversal shaft and knob by the first and a second universal joint connected by an intermediate shaft.
It is an advantage to have said intermediate shaft made in two pieces both axially free but rotating together.
In another type of execution, at the back of the cushion there are strips of Velcro-type material to make it cling at the desired height to a seat back covering of a suitable kind.
By means of the present invention a cushion for anatomical support is obtained adjustable not only in thickness and therefore in its projection from the seat back, but also in height to give support, as desired, to the lumber, cervical or other regions of the back as preferred by the user.
The subject cushion can be applied either to the outside or inside of practically all kinds of seat backs. It can be used in particular for office seats or armchairs, for seats in cinemas, conference rooms or stadiums, for seating in coaches, aeroplanes or motor vehicles, for means of transport generally for persons and goods.
Adjustments to the thickness of the cushion and/or to the height at which it is placed, whether mounted inside or outside the seat back, ensure great benefits for the user since it supports the rib cage, facilitates ';
After passing over transmission rollers mounted at top and bottom of the seat back and rolling freely, said cord winds onto a drum mounted on a second transversal shaft, supported by the seat back, projecting from the side of said seat back and terminating in a second knob for purposes of adjustment.
The scroll is connected to the first transversal shaft and knob by the first and a second universal joint connected by an intermediate shaft.
It is an advantage to have said intermediate shaft made in two pieces both axially free but rotating together.
In another type of execution, at the back of the cushion there are strips of Velcro-type material to make it cling at the desired height to a seat back covering of a suitable kind.
By means of the present invention a cushion for anatomical support is obtained adjustable not only in thickness and therefore in its projection from the seat back, but also in height to give support, as desired, to the lumber, cervical or other regions of the back as preferred by the user.
The subject cushion can be applied either to the outside or inside of practically all kinds of seat backs. It can be used in particular for office seats or armchairs, for seats in cinemas, conference rooms or stadiums, for seating in coaches, aeroplanes or motor vehicles, for means of transport generally for persons and goods.
Adjustments to the thickness of the cushion and/or to the height at which it is placed, whether mounted inside or outside the seat back, ensure great benefits for the user since it supports the rib cage, facilitates ';
digestion in persons wearing corsets, avoids or at least lessons the effects of cervical arthritis.
Other aspects of this invention are as follows:
Adjustable cushion for anatomical support mountable on a back of a seat, said adjustable cushion comprising:
a curved elastic plate having longitudinal ends, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back; and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means.
Adjustable cushion for anatomical support mounted on a back of a seat, said adjustable cushion comprising:
a curved elastic plate located inside said back of said seat and having longitudinal ends, said longitll~inAl ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back; and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means, wherein said means for adjusting a convexity of said curved elastic seat back includes a bevel gear connected to said scroll means for rotation of said scroll means, a first knob outside said back, a first transversal shaft projecting from a side of said back on which said first knob is mounted, and a first universal joint connected to said first transversal shaft and said bevel gear, so that when said first knob is rotated said scroll means is rotated to adjust said convexity of said curved elastic plate.
Adjustable cushion for anatomical support mountable on a back of a seat, said adjustable cushion comprising:
a curved elastic plate located inside said back of said seat and having longitudinal ends provided with slits, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back;
and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means, means for adjusting a vertical height of said curved elastic plate inside said back, said means for adjusting comprising a plurality of vertical guides in said back and said slits provided in said longitudinal ends through which said vertical guides pass and means for adjustably positioning said curved elastic plate at any vertical position in said back by moving said curved ~2' 6 20753~3 elastic plate on said guides, said means for adjustably positioning being accessible from outside of said seat, wherein said means for adjusting a convexity of said curved elastic seat back includes a bevel gear connected to said scroll means for rotation of said scroll means, a first knob outside said back, a first transversal shaft projecting from a side of said back to which said first knob shaft is fixed, a first universal joint connected to said first transversal shaft, a second universal joint connected to said bevel gear, and an intermediate shaft connected between said first and second universal joints, so that, when said first knob is rotated, said scroll means is rotated to adjust said convexity of said curved elastic plate; and said means for adjustably positioning said curved elastic plate includes a second knob outside said back, a second transversal shaft projecting from a side of said seat back and fixed to said second knob, a drum in said back and attached to an end of said second transversal shaft remote from said second knob, a plurality of freely rotating transmission rollers in said back and supported rotatably in the vicinity of said longitudinal ends, and a cord wound around said drum, passing over said transmission rollers and being attached to said curved elastic plate at each of said longitudinal ends so that when said second knob is rotated said curved elastic plate is moved on said vertical guides.
Characteristics and purposes of the invention will become still clearer from the following examples of its 30 execution illustrated by diagrammatic drawings in perspective.
Fig. 1: Motor vehicle seat with cushion for anatomical support to the lumbar-cervical regions mounted externally and held in place by two bands.
Fig. 2: The seat in Fig. 1 with cushion held in place by one band only.
Fig. 3: The cushion illustrated in Fig. 1, from the back.
Fig. 4: Internal structure of the cushion in Figs. 1-3.
Fig. 5: Motor vehicle seat with cushion for anatomical support to the lumbar-cervical regions mounted inside the seat back cut away to show the device.
Figs. 6-7: The seat in Fig. 5 showing two positions for the internally mounted cushion.
Fig. 8: Office armchair with cushion for anatomical support to the lumbar-cervical regions mounted with Velcro-type strips outside the chair back.
Fig. 9: The cushion in Fig. 8 seen from the back.
Fig. 10: Office armchair with cushion for anatomical support to the lumber-cervical regions mounted inside the back.
The cushion 10 (Figs. 1, 3, 4) is obtained from a device 11 comprising an elastic plate 12 with an upper end 13 and a lower end 14 curved back to form channels 15 and 16.
These ends contain the pairs of slits 21 and 22 through which the bands 23 and 24 pass respectively, for holding said cushion 10 to the back 18 of the motor vehicle 17.
The cushion 10 can of course be placed on the back seat at different heights by sliding it up or down the bands 23 and 24.
on the vertical axis of symmetry of the plate 12 there is a brace formed of a pair of aligned rods 30 and 33.
The top end 31 and lower end 34 of said rods are fixed to the plate 12 inside channels 15 and 16, while rod 7a ends 32 and 35, threaded in opposite directions, screw onto the cylindrical threaded scroll 36 with an externally knurled surface 37.
In the covering 19 over the cushion 10 an aperture 20 (Fig. 3) is made to allow the fingers to work the scroll 36.
By rotating said scroll the user can move the ends 13 and 14 of the plate 12 nearer or farther away from each other and thus increase or reduce convexity thereby adjusting thickness of the cushion 10 to personal needs.
Fig. 2 shows a cushion 25, substantially the same as the cushion 10 already described, fixed to the back 27 of the seat 26 by a single ban 28 made to pass through slits 29 (Fig. 4) cut in the plate 12.
Fiqs. 5, 6 and 7 refer to a cushion 50 for supporting the lumbar-cervical regions, similar to cushions 10 and 25 already described but placed inside the back 42 of the seat 41 for motor vehicles and visible in the cut-away in Fig. 5, comprising an elastic plate 51, substantially the same as the plate 12 already described and seen in Fig. 4, and a pair of bracing rods, and upper one 55 and lower one 60. Said rods comprise their flat ends 56 and 61 fixed respectively to the upper 52 and lower 53 channel-shaped ends of said plate 51, and the opposingly threaded ends 57 and 62 screwed into the cylindrical scroll 63.
Said scroll is mechanically connected to the short shaft 65 by means of the bevel gear 66-67.
said bevel gear is held in place by the L-bar 68 whose rotation in relation to the gear wheel 66 is prevented by the rigid arm 69 with upper fork 70 into which is inserted the flat end 56 of the upper tie rod 55 mentioned above.
A bevel gear shaft 65 is mec~nically connected to a first transversal shaft 75 which turns on supports fixed to the back 42 of the seat 41 (not seen in Fiqure 5) by 7b first universal joint 78 and second universal joint 76 at the opposite ends of the intermediate shaft 77.
The bevel gear shaft 65 referred to above can be worked s externally from the side 43 of the back 42 by means of a first knob 44.
Rotating the first knob determines rotation of the scroll 63 and therefore increases or reduces, as preferred, convexity of the elastic plate 51 obtaining the same effects as given by manual rotation of the scroll 36 on plate 12 of device 11 illustrated previously in Figure 4.
The plate 51 can slide on vertical guides 58, 59 made inside the seat back 42, said guides passing through slits cut into said plate.
Sliding movement is brought about by means of the continuous cord 71 fixed, at its two ends, to loops 54 placed top and bottom of said plate 51.
The cord 71 passes over revolving transmission rollers 72 supported by the structure of the seat back 42 and winds round the drum 73 of a second transversal shaft 74 that extends from a second knob 45 projecting from the side 43 of said seat back. Therefore, by turning second knob 45, plate 51 can be moved up and down to the position preferred by the user.
Said movement is made possible by first and second universal joints 76 and 78 that give shaft 77 the angle nPc~ee~ry for moving the plate 51.
In Figs. 6 and 7, numbers 80 and 81 mark the positions that the internally mounted cushion can reach by turning the second knob 45.
Figs. 8 and 9 illustrate application of a cushion 85, similar to cushion 10 illustrated in Figs. 1-4, to the back 84 of an office armchair 83 by means of Velcro-type strips 86, 87 that cling to the covering 88 of suitable composition.
7c This means an application can obviously also be used on the seat backs of motor vehicles.
Fig. 10 illustrates the application, inside the back 91 of an office chair 90, of a cushion 92 similar to cushion 50 already illustrated in Fig. 5.
The plate 93 can be seen as well as the various mechanisms operated by second and first knobs 94 and 95 for respectively varying the convexity of said plate and for moving it vertically on the seat back.
Other aspects of this invention are as follows:
Adjustable cushion for anatomical support mountable on a back of a seat, said adjustable cushion comprising:
a curved elastic plate having longitudinal ends, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back; and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means.
Adjustable cushion for anatomical support mounted on a back of a seat, said adjustable cushion comprising:
a curved elastic plate located inside said back of said seat and having longitudinal ends, said longitll~inAl ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back; and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means, wherein said means for adjusting a convexity of said curved elastic seat back includes a bevel gear connected to said scroll means for rotation of said scroll means, a first knob outside said back, a first transversal shaft projecting from a side of said back on which said first knob is mounted, and a first universal joint connected to said first transversal shaft and said bevel gear, so that when said first knob is rotated said scroll means is rotated to adjust said convexity of said curved elastic plate.
Adjustable cushion for anatomical support mountable on a back of a seat, said adjustable cushion comprising:
a curved elastic plate located inside said back of said seat and having longitudinal ends provided with slits, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back;
and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means, means for adjusting a vertical height of said curved elastic plate inside said back, said means for adjusting comprising a plurality of vertical guides in said back and said slits provided in said longitudinal ends through which said vertical guides pass and means for adjustably positioning said curved elastic plate at any vertical position in said back by moving said curved ~2' 6 20753~3 elastic plate on said guides, said means for adjustably positioning being accessible from outside of said seat, wherein said means for adjusting a convexity of said curved elastic seat back includes a bevel gear connected to said scroll means for rotation of said scroll means, a first knob outside said back, a first transversal shaft projecting from a side of said back to which said first knob shaft is fixed, a first universal joint connected to said first transversal shaft, a second universal joint connected to said bevel gear, and an intermediate shaft connected between said first and second universal joints, so that, when said first knob is rotated, said scroll means is rotated to adjust said convexity of said curved elastic plate; and said means for adjustably positioning said curved elastic plate includes a second knob outside said back, a second transversal shaft projecting from a side of said seat back and fixed to said second knob, a drum in said back and attached to an end of said second transversal shaft remote from said second knob, a plurality of freely rotating transmission rollers in said back and supported rotatably in the vicinity of said longitudinal ends, and a cord wound around said drum, passing over said transmission rollers and being attached to said curved elastic plate at each of said longitudinal ends so that when said second knob is rotated said curved elastic plate is moved on said vertical guides.
Characteristics and purposes of the invention will become still clearer from the following examples of its 30 execution illustrated by diagrammatic drawings in perspective.
Fig. 1: Motor vehicle seat with cushion for anatomical support to the lumbar-cervical regions mounted externally and held in place by two bands.
Fig. 2: The seat in Fig. 1 with cushion held in place by one band only.
Fig. 3: The cushion illustrated in Fig. 1, from the back.
Fig. 4: Internal structure of the cushion in Figs. 1-3.
Fig. 5: Motor vehicle seat with cushion for anatomical support to the lumbar-cervical regions mounted inside the seat back cut away to show the device.
Figs. 6-7: The seat in Fig. 5 showing two positions for the internally mounted cushion.
Fig. 8: Office armchair with cushion for anatomical support to the lumbar-cervical regions mounted with Velcro-type strips outside the chair back.
Fig. 9: The cushion in Fig. 8 seen from the back.
Fig. 10: Office armchair with cushion for anatomical support to the lumber-cervical regions mounted inside the back.
The cushion 10 (Figs. 1, 3, 4) is obtained from a device 11 comprising an elastic plate 12 with an upper end 13 and a lower end 14 curved back to form channels 15 and 16.
These ends contain the pairs of slits 21 and 22 through which the bands 23 and 24 pass respectively, for holding said cushion 10 to the back 18 of the motor vehicle 17.
The cushion 10 can of course be placed on the back seat at different heights by sliding it up or down the bands 23 and 24.
on the vertical axis of symmetry of the plate 12 there is a brace formed of a pair of aligned rods 30 and 33.
The top end 31 and lower end 34 of said rods are fixed to the plate 12 inside channels 15 and 16, while rod 7a ends 32 and 35, threaded in opposite directions, screw onto the cylindrical threaded scroll 36 with an externally knurled surface 37.
In the covering 19 over the cushion 10 an aperture 20 (Fig. 3) is made to allow the fingers to work the scroll 36.
By rotating said scroll the user can move the ends 13 and 14 of the plate 12 nearer or farther away from each other and thus increase or reduce convexity thereby adjusting thickness of the cushion 10 to personal needs.
Fig. 2 shows a cushion 25, substantially the same as the cushion 10 already described, fixed to the back 27 of the seat 26 by a single ban 28 made to pass through slits 29 (Fig. 4) cut in the plate 12.
Fiqs. 5, 6 and 7 refer to a cushion 50 for supporting the lumbar-cervical regions, similar to cushions 10 and 25 already described but placed inside the back 42 of the seat 41 for motor vehicles and visible in the cut-away in Fig. 5, comprising an elastic plate 51, substantially the same as the plate 12 already described and seen in Fig. 4, and a pair of bracing rods, and upper one 55 and lower one 60. Said rods comprise their flat ends 56 and 61 fixed respectively to the upper 52 and lower 53 channel-shaped ends of said plate 51, and the opposingly threaded ends 57 and 62 screwed into the cylindrical scroll 63.
Said scroll is mechanically connected to the short shaft 65 by means of the bevel gear 66-67.
said bevel gear is held in place by the L-bar 68 whose rotation in relation to the gear wheel 66 is prevented by the rigid arm 69 with upper fork 70 into which is inserted the flat end 56 of the upper tie rod 55 mentioned above.
A bevel gear shaft 65 is mec~nically connected to a first transversal shaft 75 which turns on supports fixed to the back 42 of the seat 41 (not seen in Fiqure 5) by 7b first universal joint 78 and second universal joint 76 at the opposite ends of the intermediate shaft 77.
The bevel gear shaft 65 referred to above can be worked s externally from the side 43 of the back 42 by means of a first knob 44.
Rotating the first knob determines rotation of the scroll 63 and therefore increases or reduces, as preferred, convexity of the elastic plate 51 obtaining the same effects as given by manual rotation of the scroll 36 on plate 12 of device 11 illustrated previously in Figure 4.
The plate 51 can slide on vertical guides 58, 59 made inside the seat back 42, said guides passing through slits cut into said plate.
Sliding movement is brought about by means of the continuous cord 71 fixed, at its two ends, to loops 54 placed top and bottom of said plate 51.
The cord 71 passes over revolving transmission rollers 72 supported by the structure of the seat back 42 and winds round the drum 73 of a second transversal shaft 74 that extends from a second knob 45 projecting from the side 43 of said seat back. Therefore, by turning second knob 45, plate 51 can be moved up and down to the position preferred by the user.
Said movement is made possible by first and second universal joints 76 and 78 that give shaft 77 the angle nPc~ee~ry for moving the plate 51.
In Figs. 6 and 7, numbers 80 and 81 mark the positions that the internally mounted cushion can reach by turning the second knob 45.
Figs. 8 and 9 illustrate application of a cushion 85, similar to cushion 10 illustrated in Figs. 1-4, to the back 84 of an office armchair 83 by means of Velcro-type strips 86, 87 that cling to the covering 88 of suitable composition.
7c This means an application can obviously also be used on the seat backs of motor vehicles.
Fig. 10 illustrates the application, inside the back 91 of an office chair 90, of a cushion 92 similar to cushion 50 already illustrated in Fig. 5.
The plate 93 can be seen as well as the various mechanisms operated by second and first knobs 94 and 95 for respectively varying the convexity of said plate and for moving it vertically on the seat back.
Claims (10)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Adjustable cushion for anatomical support mountable on a back of a seat, said adjustable cushion comprising:
a curved elastic plate having longitudinal ends, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back;
and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means.
a curved elastic plate having longitudinal ends, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back;
and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means.
2. Adjustable cushion as defined in Claim 1, wherein said scroll means has an external surface and said external surface is accessible from a rear side of said curved elastic plate and is knurled so as to be manually operable.
3. Adjustable cushion as defined in Claim 1, wherein said longitudinal ends of said plate are provided with at least one pair of slits, and further comprising means for adjusting a vertical height of said curved elastic plate on said back, said means for adjusting including at least one vertical band wound around said back and said at least one pair of slits in said curved elastic plate, said slits being formed to receive said at least one vertical band so as to allow said curved elastic plate to be located at any vertical position on said back.
4. Adjustable cushion as defined in Claim 1, wherein said longitudinal ends of said plate are provided with slits, and further comprising means for adjusting a vertical height of said curved elastic plate inside said back, said means for adjusting comprising a plurality of vertical guides in said back and said slits provided in said longitudinal ends through which said vertical guides pass and means for adjustably positioning said curved elastic plate at any vertical position in said back by moving said curved elastic plate on said guides, said means for adjustably positioning being accessible from outside of said seat.
5. Adjustable cushion as defined in Claim 4, wherein said curved elastic plate is inside said back of said seat, and said means for adjustably positioning said curved elastic plate includes a second knob outside said back, a second transversal shaft projecting from a side of said back and fixed to said second knob, a drum in said back and attached to an end of said second transversal shaft remote from said second knob, a plurality of freely rotating transmission rollers in said back and supported rotatably in the vicinity of said longitudinal ends, and a cord wound around said drum, passing over said transmission rollers and being attached to said curved elastic plate at each of said longitudinal ends so that, when said second knob is rotated, said curved elastic plate is moved on said vertical guides.
6. Adjustable cushion as defined in Claim 1, further comprising means for adjustably positioning said curved elastic plate on said back of said seat, said means for adjustably positioning including Velcro-type strips structures to cling to a covering of said back, said Velcro-type strips being located at a plurality of positions on a rear side of said curved elastic plate.
7. Adjustable cushion as defined in Claim 1, wherein said curved elastic plate is shaped for anatomical support of lumbar and cervical regions.
8. Adjustable cushion for anatomical support mounted on a back of a seat, said adjustable cushion comprising:
a curved elastic plate located inside said back of said seat and having longitudinal ends, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back; and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means, wherein said means for adjusting a convexity of said curved elastic seat back includes a bevel gear connected to said scroll means for rotation of said scroll means, a first knob outside said back, a first transversal shaft projecting from a side of said back on which said first knob is mounted, and a first universal joint connected to said first transversal shaft and said bevel gear, so that when said first knob is rotated said scroll means is rotated to adjust said convexity of said curved elastic plate.
a curved elastic plate located inside said back of said seat and having longitudinal ends, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back; and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means, wherein said means for adjusting a convexity of said curved elastic seat back includes a bevel gear connected to said scroll means for rotation of said scroll means, a first knob outside said back, a first transversal shaft projecting from a side of said back on which said first knob is mounted, and a first universal joint connected to said first transversal shaft and said bevel gear, so that when said first knob is rotated said scroll means is rotated to adjust said convexity of said curved elastic plate.
9. Adjustable cushion for anatomical support mountable on a back of a seat, said adjustable cushion comprising:
a curved elastic plate located inside said back of said seat and having longitudinal ends provided with slits, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back;
and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means, means for adjusting a vertical height of said curved elastic plate inside said back, said means for adjusting comprising a plurality of vertical guides in said back and said slits provided in said longitudinal ends through which said vertical guides pass and means for adjustably positioning said curved elastic plate at any vertical position in said back by moving said curved elastic plate on said guides, said means for adjustably positioning being accessible from outside of said seat, wherein said means for adjusting a convexity of said curved elastic seat back includes a bevel gear connected to said scroll means for rotation of said scroll means, a first knob outside said back, a first transversal shaft projecting from a side of said back to which said first knob shaft is fixed, a first universal joint connected to said first transversal shaft, a second universal joint connected to said bevel gear, and an intermediate shaft connected between said first and second universal joints, so that, when said first knob is rotated, said scroll means is rotated to adjust said convexity of said curved elastic plate; and said means for adjustably positioning said curved elastic plate includes a second knob outside said back, a second transversal shaft projecting from a side of said seat back and fixed to said second knob, a drum in said back and attached to an end of said second transversal shaft remote from said second knob, a plurality of freely rotating transmission rollers in said back and supported rotatably in the vicinity of said longitudinal ends, and a cord wound around said drum, passing over said transmission rollers and being attached to said curved elastic plate at each of said longitudinal ends so that when said second knob is rotated said curved elastic plate is moved on said vertical guides.
a curved elastic plate located inside said back of said seat and having longitudinal ends provided with slits, said longitudinal ends of said plate being curved backwards so as to form an upper channel and a lower channel and said elastic plate being mountable on said back of said seat projecting convexedly from said back;
and means for adjusting a convexity of said curved elastic plate including a posterior vertical central brace consisting of a pair of aligned threaded rods having posterior ends and threaded in opposite directions and a cylindrical scroll means receiving said aligned threaded rods so that said posterior ends of said threaded rods are securable in said upper and lower channels and said convexity of said curved elastic back can be varied by rotating said scroll means, means for adjusting a vertical height of said curved elastic plate inside said back, said means for adjusting comprising a plurality of vertical guides in said back and said slits provided in said longitudinal ends through which said vertical guides pass and means for adjustably positioning said curved elastic plate at any vertical position in said back by moving said curved elastic plate on said guides, said means for adjustably positioning being accessible from outside of said seat, wherein said means for adjusting a convexity of said curved elastic seat back includes a bevel gear connected to said scroll means for rotation of said scroll means, a first knob outside said back, a first transversal shaft projecting from a side of said back to which said first knob shaft is fixed, a first universal joint connected to said first transversal shaft, a second universal joint connected to said bevel gear, and an intermediate shaft connected between said first and second universal joints, so that, when said first knob is rotated, said scroll means is rotated to adjust said convexity of said curved elastic plate; and said means for adjustably positioning said curved elastic plate includes a second knob outside said back, a second transversal shaft projecting from a side of said seat back and fixed to said second knob, a drum in said back and attached to an end of said second transversal shaft remote from said second knob, a plurality of freely rotating transmission rollers in said back and supported rotatably in the vicinity of said longitudinal ends, and a cord wound around said drum, passing over said transmission rollers and being attached to said curved elastic plate at each of said longitudinal ends so that when said second knob is rotated said curved elastic plate is moved on said vertical guides.
10. Adjustable cushion as defined in Claim 9, wherein said intermediate shaft consists of two pieces connected nonrotatably to each other but slidable axially in relation to each other so that said intermediate shaft can change length as said curved elastic plate is moved by said means for adjustably positioning.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19632A IT1239943B (en) | 1990-03-09 | 1990-03-09 | BEARING FOR ANATOMICAL SUPPORT, IN LUMBAR AND CERVICAL SPECIES, FOR SEAT BACKRESTS |
| IT19632A/90 | 1990-03-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2075383A1 CA2075383A1 (en) | 1991-09-10 |
| CA2075383C true CA2075383C (en) | 1998-06-16 |
Family
ID=11159902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002075383A Expired - Fee Related CA2075383C (en) | 1990-03-09 | 1990-04-09 | Cushion for anatomical support, especially for the lumbar and cervical regions, to fit onto seat backs |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US5335965A (en) |
| EP (1) | EP0518857B1 (en) |
| JP (1) | JPH0777568B2 (en) |
| AT (1) | ATE94037T1 (en) |
| AU (1) | AU642411B2 (en) |
| BR (1) | BR9008000A (en) |
| CA (1) | CA2075383C (en) |
| DE (1) | DE69003254T2 (en) |
| DK (1) | DK0518857T3 (en) |
| ES (1) | ES2045914T3 (en) |
| FI (1) | FI923725A (en) |
| HU (1) | HU213695B (en) |
| IT (1) | IT1239943B (en) |
| MC (1) | MC2232A1 (en) |
| NO (1) | NO923211L (en) |
| OA (1) | OA09613A (en) |
| RU (1) | RU2060718C1 (en) |
| WO (1) | WO1991013572A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| USD419007S (en) | 1998-03-31 | 2000-01-18 | Teknion Furniture Systems Inc. | Back for a chair |
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| IT1219016B (en) * | 1988-02-12 | 1990-04-24 | Tis Tecnologia Innovazione Sti | SPRING AND LATERAL CONTAINMENT ELEMENT FOR A SEAT AND OR BACK OF A SEAT AND SEAT IN CORPORATE SUCH ELEMENT |
| US5197780A (en) * | 1991-02-20 | 1993-03-30 | Fisher Dynamics Corporation | Transmission device for cable control of lumbar support mechanism |
| US5217278A (en) * | 1991-03-13 | 1993-06-08 | Findlay Industries, Inc. | Mechanism for providing adjustable lumbar support in a seat |
-
1990
- 1990-03-09 IT IT19632A patent/IT1239943B/en active IP Right Grant
- 1990-04-09 DE DE90906330T patent/DE69003254T2/en not_active Expired - Fee Related
- 1990-04-09 MC MC90IT9000039D patent/MC2232A1/en unknown
- 1990-04-09 CA CA002075383A patent/CA2075383C/en not_active Expired - Fee Related
- 1990-04-09 BR BR909008000A patent/BR9008000A/en not_active IP Right Cessation
- 1990-04-09 HU HU9202494A patent/HU213695B/en not_active IP Right Cessation
- 1990-04-09 AT AT90906330T patent/ATE94037T1/en not_active IP Right Cessation
- 1990-04-09 DK DK90906330.7T patent/DK0518857T3/en active
- 1990-04-09 ES ES90906330T patent/ES2045914T3/en not_active Expired - Lifetime
- 1990-04-09 AU AU54442/90A patent/AU642411B2/en not_active Ceased
- 1990-04-09 RU SU905052990A patent/RU2060718C1/en active
- 1990-04-09 EP EP90906330A patent/EP0518857B1/en not_active Expired - Lifetime
- 1990-04-09 US US07/917,060 patent/US5335965A/en not_active Expired - Fee Related
- 1990-04-09 WO PCT/IT1990/000039 patent/WO1991013572A1/en active IP Right Grant
- 1990-04-09 JP JP2506363A patent/JPH0777568B2/en not_active Expired - Fee Related
-
1992
- 1992-08-17 NO NO92923211A patent/NO923211L/en unknown
- 1992-08-19 FI FI923725A patent/FI923725A/en not_active Application Discontinuation
- 1992-09-09 OA OA60267A patent/OA09613A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD419007S (en) | 1998-03-31 | 2000-01-18 | Teknion Furniture Systems Inc. | Back for a chair |
Also Published As
| Publication number | Publication date |
|---|---|
| IT9019632A1 (en) | 1991-09-09 |
| DE69003254T2 (en) | 1994-04-21 |
| JPH05504488A (en) | 1993-07-15 |
| IT1239943B (en) | 1993-11-27 |
| IT9019632A0 (en) | 1990-03-09 |
| NO923211D0 (en) | 1992-08-17 |
| DK0518857T3 (en) | 1994-04-18 |
| FI923725A0 (en) | 1992-08-19 |
| JPH0777568B2 (en) | 1995-08-23 |
| HU213695B (en) | 1997-09-29 |
| EP0518857B1 (en) | 1993-09-08 |
| BR9008000A (en) | 1993-01-19 |
| HUT63041A (en) | 1993-07-28 |
| US5335965A (en) | 1994-08-09 |
| MC2232A1 (en) | 1993-02-23 |
| NO923211L (en) | 1992-08-27 |
| AU5444290A (en) | 1991-10-10 |
| AU642411B2 (en) | 1993-10-21 |
| ATE94037T1 (en) | 1993-09-15 |
| CA2075383A1 (en) | 1991-09-10 |
| FI923725A (en) | 1992-08-19 |
| RU2060718C1 (en) | 1996-05-27 |
| EP0518857A1 (en) | 1992-12-23 |
| ES2045914T3 (en) | 1994-01-16 |
| WO1991013572A1 (en) | 1991-09-19 |
| OA09613A (en) | 1993-04-30 |
| HU9202494D0 (en) | 1993-03-01 |
| DE69003254D1 (en) | 1993-10-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |