US20010001220A1 - Pivot mechanism for a vehicle seat and seat fitted with said mechanism - Google Patents
Pivot mechanism for a vehicle seat and seat fitted with said mechanism Download PDFInfo
- Publication number
- US20010001220A1 US20010001220A1 US09/754,764 US75476401A US2001001220A1 US 20010001220 A1 US20010001220 A1 US 20010001220A1 US 75476401 A US75476401 A US 75476401A US 2001001220 A1 US2001001220 A1 US 2001001220A1
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- United States
- Prior art keywords
- over
- locking member
- locking
- pivot mechanism
- frame
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- 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
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
- B60N2/235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
- B60N2/2356—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls
- B60N2/236—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls linearly movable
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- 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
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/14—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable rotatable, e.g. to permit easy access
-
- 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
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
- B60N2/235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
Definitions
- the present invention relates to the pivot mechanisms used with vehicle seats and seats fitted with these mechanisms.
- the invention relates to a pivot mechanism comprising: p 1 first and second rigid frames mounted so as to pivot relative to one another about an axis of rotation,
- teeth joined to the first frame and forming at least one circular arc centred on the axis of rotation
- At least one rigid locking member which is movable relative to the second frame between a locking position on the one hand, in which it co-operates with the teeth of the first frame in order to immobilise the first and second frames relative to one another, and, on the other hand, a retracted position in which said locking member does not mesh with the teeth of the first frame,
- control means designed to place the locking member selectively either in its locked position or in its retracted position
- Document EP-A-0 720 930 describes an example of a pivot mechanism of this type, which is totally satisfactory.
- the invention proposes a pivot mechanism of the type in question, which also has at least one rigid over-locking member which is movable relative to the second frame between an active position on the one hand, in which it co-operates with the teeth of the first frame so as to immobilise the first and second frames relative to one another, and a retracted position on the other hand, in which said over-locking member does not mesh with the teeth of the first frame, this over-locking member normally being maintained in its retracted position by retaining means designed to give way if the over-locking member is pushed with sufficient force into its active position, and wherein the stop member is designed to be displaced towards the over-locking member and to push said member into its active position by camming action if the pivot mechanism is subjected to a torque higher than a predetermined value in the first direction of rotation.
- the stop member is designed to be plastically deformed if the pivot mechanism is subjected to a rotation torque greater than said first predetermined value: this plastic deformation allows some of the mechanical energy of the impact to be absorbed in the event of an accident, which attenuates the effects of the impact felt by the passenger occupying the seat;
- the locking mechanism also has:
- At least one additional over-locking member which is able to move relative to the second frame between an active position on the one hand, in which said additional over-locking member co-operates with the teeth of the first frame in order to immobilise the first and second frames relative to one another, and a retracted position on the other hand, in which said additional over-locking member does not mesh with the teeth of the first frame, this additional over-locking member normally being maintained in its retracted position by retaining means designed to give way if the additional over-locking member is pushed into its active position with sufficient force,
- the additional stop member is designed so that it is plastically deformed if the pivot mechanism is subjected to a rotation torque greater than said second predetermined value
- the first and second predetermined values for the rotation torque range between 50 and 200 mdaN;
- stop members distributed at an angle between each locking member and an over-locking member, the locking members being mounted so as to slide radially between the stop members and the over-locking members having pointed ends with an acute angle which are delimited between a front face on the one hand, having teeth designed to mesh in the teeth of the first frame, and a side face on the other hand, arranged in contact with one of the stop members;
- the teeth of the first frame are directed radially towards the interior, the locking members, the over-locking members and the stop members being arranged to the interior of said teeth;
- the retaining means have bosses and matching indentations, some of which belong to each side face of each locking member whilst the others belong to the corresponding stop members, these bosses and indentations co-operating normally in a reciprocal nesting action so that the over-locking member is normally retained in its retracted position.
- the invention also relates to a vehicle seat comprising a backrest which is pivotally mounted on a seat by means of a pivot mechanism of the type defined above.
- FIG. 1 is a schematic view of a vehicle seat comprising a pivot mechanism as proposed by the invention
- FIG. 2 is a view in axial section of a first embodiment of the pivot mechanism fitted to the seat illustrated in FIG. 1,
- FIG. 3 is a view in section along the broken line III-III of FIG. 2,
- FIG. 4 shows a detail, in section along the line IV-IV of FIG. 3,
- FIG. 5 is a view similar to that of FIG. 3, showing the pivot mechanism after the vehicle in which the seat is fitted has been involved in an accident, and
- FIG. 6 is a view similar to that of FIG. 3, showing a second embodiment of the pivot mechanism proposed by the invention.
- the invention relates to a vehicle seat 1 , in particular a front seat of a motor vehicle, which comprises:
- a backrest 4 mounted on the seat 2 so as to pivot about a horizontal transverse axis X by means of a pivot mechanism 5 controlled by a control lever 6 or similar.
- the pivot mechanism 5 comprises:
- this locking device may comprise, for example:
- At least one and preferably three metal plates or locking members 11 (more generally, there might be a number n of plates 11 , where n is between 1 and 6 and preferably between 3 and 6), which are arranged at 120° relative to one another and each of which has external teeth 12 designed to mesh with a ring of internal teeth 13 provided in the mobile flange 8 , each of these plates being mounted so as to slide radially in a guide formed by two stop members 14 which frame the plate 11 in the circumferential direction and which are joined to the stationary flange 7 , the plates 11 thus being displaceable between a locking position on the one hand, in which the teeth 12 of these plates mesh with the teeth 13 of the mobile flange so as to block the pivot mechanism, and a retracted position on the other hand, in which the plates do not co-operate with the teeth of the mobile flange, each plate also having at least one pin 15 projecting out axially towards the mobile flange 8 ,
- a spring 18 which is mounted, for example, in a shaped indentation 19 provided in the stationary flange 7 and which biases the control shaft 17 and the cam 16 in the angular direction 20 towards a rest position in which said cam places the plates 11 in their locking position, said cam being able to pivot in the opposite angular direction 21 under the action of the control lever 6 , enabling the plates to slide towards their retracted position, thereby releasing the pivot mechanism,
- the pivot mechanism also has at least one and preferably three over-locking members 25 (more generally, there is preferably the same number n of over-locking members as there are plates 11 ), each of which is provided in the form of a rigid metal plate, punched out from a sheet, for example.
- over-locking members are distributed at an angle of 120 degrees relative to one another between the plates 11 and each is housed between two successive stop members 14 .
- each of the two ends of the front face 26 of the over-locking member 25 forms a point having an acute angle.
- Each of the side faces 28 of the over-locking member is preferably straight, as seen in a plan view, and is arranged abutting against a matching surface 29 of the corresponding stop member 14 .
- each over-locking member 25 advantageously have at least one boss 30 which nests in a matching indentation 31 of the corresponding stop member 14 (optionally, the boss 30 could be provided on the stop member 14 and the indentation 31 in the side face 28 of the over-locking member 25 ).
- the mobile flange 7 of the pivot mechanism may, depending on the circumstances, be subjected to a very high torque in one or other of the angular directions 20 , 21 , in this case direction 21 in the example illustrated in FIG. 5.
- This torque may be due, for example, to:
- the plates 11 are subjected to very high forces in the circumferential direction so that each of these plates causes the stop member 14 located downstream in the direction in which the force is applied to be plastically deformed, in this case direction 21 : one stop member 25 in two is therefore displaced in the direction 21 towards the corresponding over-locking member 25 .
- a certain threshold value for example 100 or 150 mdaN (decameters Newton) or more generally a threshold value between 50 and 200 mdaN
- each over-locking member 25 is displaced radially towards the exterior by the stop members 14 , under the action of the cam or pointed end.
- over-locking members 25 Once the over-locking members 25 are in the active position, they form, in conjunction with the stop members 14 and the plates 11 , a continuous circular chain of rigid members meshing with the teeth 13 of the mobile flange over a major part of its periphery, which therefore exhibits greater resistance to the torques acting on the mobile flange.
- the pivot mechanism is therefore able to withstand torques in excess of 300 mdaN for a modest additional cost as compared with a conventional mechanism of the prior art.
- stop members 14 enables a not inconsiderable amount of the mechanical energy induced by the impact on the vehicle to be absorbed, which helps to absorb the impact experienced by the passenger occupying the seat.
- the pivot mechanism would operate in the same way if the torque were applied to the mobile flange 7 in the direction 20 .
- over-locking plates 25 retain their final position after the vehicle has been subjected to an accident: if the impact were high, the over-locking plates 25 would then hold the backrest locked in position. These plates 25 are therefore evidence of the amount of damage sustained by the seat and hence an indication to the user and/or service personnel that the seat needs to be replaced in order to guarantee the safety of the passenger.
- the pivot mechanism might be used to control an adjustment to the seat other than the inclination of the backrest (for example the height adjustment of the seat part or another adjustment),
- each over-locking plate 25 has one side face 29 arranged as described above and one side face co-operating with a stationary stop member, by meshing, belonging to the stationary flange 7 so that the over-locking plate pivots when it shifts from its retracted position to its active position,
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
- 1. The present invention relates to the pivot mechanisms used with vehicle seats and seats fitted with these mechanisms.
- 2. More specifically, the invention relates to a pivot mechanism comprising: p1 first and second rigid frames mounted so as to pivot relative to one another about an axis of rotation,
- 3. teeth joined to the first frame and forming at least one circular arc centred on the axis of rotation,
- 4. at least one rigid locking member which is movable relative to the second frame between a locking position on the one hand, in which it co-operates with the teeth of the first frame in order to immobilise the first and second frames relative to one another, and, on the other hand, a retracted position in which said locking member does not mesh with the teeth of the first frame,
- 5. control means designed to place the locking member selectively either in its locked position or in its retracted position,
- 6. and at least one rigid stop member which is joined to the second frame and positioned so that the locking member abuts at an angle against said stop member if the pivot mechanism is subjected to a pivot torque in a first direction of rotation whilst the locking member is in its locked position.
- 7. Document EP-A-0 720 930 describes an example of a pivot mechanism of this type, which is totally satisfactory.
- 8. However, in view of the way in which safety standards are changing, it would be of interest to make the type of pivot mechanisms described above stronger in order to prevent these mechanisms from breaking in the event of an accident, in which case the pivot mechanisms would be subjected to a particularly high rotation torque.
- 9. To this end, the invention proposes a pivot mechanism of the type in question, which also has at least one rigid over-locking member which is movable relative to the second frame between an active position on the one hand, in which it co-operates with the teeth of the first frame so as to immobilise the first and second frames relative to one another, and a retracted position on the other hand, in which said over-locking member does not mesh with the teeth of the first frame, this over-locking member normally being maintained in its retracted position by retaining means designed to give way if the over-locking member is pushed with sufficient force into its active position, and wherein the stop member is designed to be displaced towards the over-locking member and to push said member into its active position by camming action if the pivot mechanism is subjected to a torque higher than a predetermined value in the first direction of rotation.
- 10. As a result of these features, the pivot mechanism is considerably stronger in the event of impact without at the same time requiring more complicated control means since the normal control of the locking member does not act on the over-locking member.
- 11. In preferred embodiments of the invention, one and/or the other of the following features may be incorporated:
- 12. the stop member is designed to be plastically deformed if the pivot mechanism is subjected to a rotation torque greater than said first predetermined value: this plastic deformation allows some of the mechanical energy of the impact to be absorbed in the event of an accident, which attenuates the effects of the impact felt by the passenger occupying the seat;
- 13. The locking mechanism also has:
- 14. at least one additional over-locking member which is able to move relative to the second frame between an active position on the one hand, in which said additional over-locking member co-operates with the teeth of the first frame in order to immobilise the first and second frames relative to one another, and a retracted position on the other hand, in which said additional over-locking member does not mesh with the teeth of the first frame, this additional over-locking member normally being maintained in its retracted position by retaining means designed to give way if the additional over-locking member is pushed into its active position with sufficient force,
- 15. and at least one additional rigid stop member joined to the second frame which is positioned so that the locking member abuts at an angle against said additional stop member if the pivot mechanism is subjected to a pivot torque in a second direction of rotation opposite the first direction whilst the locking member is in its locked position, the additional stop member being designed to be displaced towards the additional over-locking member and to push this additional over-locking member into its active position by camming action if the pivot mechanism is subjected to a pivot torque greater than a second predetermined value in the second direction of rotation;
- 16. the additional stop member is designed so that it is plastically deformed if the pivot mechanism is subjected to a rotation torque greater than said second predetermined value;
- 17. the first and second predetermined values for the rotation torque range between 50 and 200 mdaN;
- 18. the teeth of the first frame form a full circle and the pivot mechanism has:
- 19. a number n, ranging between 3 and 6, of locking members activated by the control means,
- 20. n over-locking members, distributed at an angle between the locking members and the over-locking members,
- 21. and 2n stop members distributed at an angle between each locking member and an over-locking member, the locking members being mounted so as to slide radially between the stop members and the over-locking members having pointed ends with an acute angle which are delimited between a front face on the one hand, having teeth designed to mesh in the teeth of the first frame, and a side face on the other hand, arranged in contact with one of the stop members;
- 22. the teeth of the first frame are directed radially towards the interior, the locking members, the over-locking members and the stop members being arranged to the interior of said teeth;
- 23. the retaining means have bosses and matching indentations, some of which belong to each side face of each locking member whilst the others belong to the corresponding stop members, these bosses and indentations co-operating normally in a reciprocal nesting action so that the over-locking member is normally retained in its retracted position.
- 24. The invention also relates to a vehicle seat comprising a backrest which is pivotally mounted on a seat by means of a pivot mechanism of the type defined above.
- 25. Other features and advantages of the invention will become clear from the description below of two embodiments, given by way of example and not restrictive in any respect, and with reference to the appended drawings.
- 26. Of the drawings:
- 27.FIG. 1 is a schematic view of a vehicle seat comprising a pivot mechanism as proposed by the invention,
- 28.FIG. 2 is a view in axial section of a first embodiment of the pivot mechanism fitted to the seat illustrated in FIG. 1,
- 29.FIG. 3 is a view in section along the broken line III-III of FIG. 2,
- 30.FIG. 4 shows a detail, in section along the line IV-IV of FIG. 3,
- 31.FIG. 5 is a view similar to that of FIG. 3, showing the pivot mechanism after the vehicle in which the seat is fitted has been involved in an accident, and
- 32.FIG. 6 is a view similar to that of FIG. 3, showing a second embodiment of the pivot mechanism proposed by the invention.
- 33. The same references are used in the different drawings to denote the same or similar components.
- 34. As schematically illustrated in FIG. 1, the invention relates to a vehicle seat 1, in particular a front seat of a motor vehicle, which comprises:
- 35. on the one hand a
seat part 2 mounted on thefloor 3 of the vehicle, - 36. and, on the other hand, a backrest 4 mounted on the
seat 2 so as to pivot about a horizontal transverse axis X by means of apivot mechanism 5 controlled by a control lever 6 or similar. - 37. As illustrated in FIGS. 2 and 3, the
pivot mechanism 5 comprises: - 38. a
metal flange 7 which in this case is stationary and joined to the rigid frame of the seat part, - 39. a
metal flange 8 which in this case is movable and joined to the frame of the backrest, - 40. a metal crown 9 which is crimped around the periphery of the stationary and mobile flanges, delimiting therewith a closed circular housing,
- 41. and a
locking device 10 which is contained in this housing and which is designed to immobilise themobile flange 8 relative to thestationary flange 7 provided the lever 6 is not operated. - 42. In a manner known per se, this locking device may comprise, for example:
- 43. at least one and preferably three metal plates or locking members 11 (more generally, there might be a number n of
plates 11, where n is between 1 and 6 and preferably between 3 and 6), which are arranged at 120° relative to one another and each of which hasexternal teeth 12 designed to mesh with a ring ofinternal teeth 13 provided in themobile flange 8, each of these plates being mounted so as to slide radially in a guide formed by twostop members 14 which frame theplate 11 in the circumferential direction and which are joined to thestationary flange 7, theplates 11 thus being displaceable between a locking position on the one hand, in which theteeth 12 of these plates mesh with theteeth 13 of the mobile flange so as to block the pivot mechanism, and a retracted position on the other hand, in which the plates do not co-operate with the teeth of the mobile flange, each plate also having at least onepin 15 projecting out axially towards themobile flange 8, - 44. a
metal cam 16 which is joined to acontrol shaft 17 which is in turn joined to the lever 6, this cam controlling the sliding action of theplates 11, - 45. a
spring 18 which is mounted, for example, in a shapedindentation 19 provided in thestationary flange 7 and which biases thecontrol shaft 17 and thecam 16 in theangular direction 20 towards a rest position in which said cam places theplates 11 in their locking position, said cam being able to pivot in the oppositeangular direction 21 under the action of the control lever 6, enabling the plates to slide towards their retracted position, thereby releasing the pivot mechanism, - 46. and a
rigid metal plate 22 which is joined to thecam 16 in rotation and which extends radially between said cam and themobile flange 8 partially covering theplates 11, this plate having three cut-outsections 23 in which thepin 15 of the plates engage, each of these pins co-operating with acam edge 24 delimiting the corresponding cut-out section radially towards the exterior and which is of a matching shape so as to displace the corresponding plate radially towards the interior when the cam rotates in thedirection 21. - 47. In addition, in accordance with the invention, the pivot mechanism also has at least one and preferably three over-locking members 25 (more generally, there is preferably the same number n of over-locking members as there are plates 11), each of which is provided in the form of a rigid metal plate, punched out from a sheet, for example.
- 48. These over-locking members are distributed at an angle of 120 degrees relative to one another between the
plates 11 and each is housed between twosuccessive stop members 14. - 49. They each have a
front face 26 of a circular arc shape, the two ends thereof being provided withteeth 27 designed to mesh with theteeth 13 of the mobile flange in order to strengthen the locking action of the pivot mechanism. - 50. In conjunction with the corresponding side face 28 of said over-locking member, each of the two ends of the
front face 26 of theover-locking member 25 forms a point having an acute angle. Each of the side faces 28 of the over-locking member is preferably straight, as seen in a plan view, and is arranged abutting against a matchingsurface 29 of thecorresponding stop member 14. - 51. Furthermore, in order to retain the
over-locking member 25 in a retracted position in which itsteeth 27 do not co-operate with theteeth 13 of the mobile flange, the side faces 28 of eachover-locking member 25 advantageously have at least oneboss 30 which nests in amatching indentation 31 of the corresponding stop member 14 (optionally, theboss 30 could be provided on thestop member 14 and theindentation 31 in theside face 28 of the over-locking member 25). - 52. The pivot mechanism described above operates as follows.
- 53. If the passenger in the seat 1 wants to adjust the inclination of the backrest 4, he operates the lever 6, causing it to rotate in the
angular direction 21, which releases thepivot mechanism 5 enabling the passenger to adjust the inclination of the backrest 4 by acting directly on this backrest, for example by pushing backwards with his back or, vice versa, by letting it move forward under the action of one or more springs inside this backrest (not illustrated). - 54. On the other hand, if the passenger is not operating the lever 6, the pivot mechanism will remain in a locked position.
- 55. If the vehicle is involved in an accident whilst the pivot mechanism is in this locked position, the
mobile flange 7 of the pivot mechanism may, depending on the circumstances, be subjected to a very high torque in one or other of theangular directions case direction 21 in the example illustrated in FIG. 5. - 56. This torque may be due, for example, to:
- 57. the inertia of the passenger in the case of rear impact or if the safety belt has a top anchoring point joined to the backrest,
- 58. and/or the impact of luggage located to the rear of the seat in the event of a frontal impact.
- 59. If the torque reaches a certain threshold value, for example 100 or 150 mdaN (decameters Newton) or more generally a threshold value between 50 and 200 mdaN, the
plates 11 are subjected to very high forces in the circumferential direction so that each of these plates causes thestop member 14 located downstream in the direction in which the force is applied to be plastically deformed, in this case direction 21: onestop member 25 in two is therefore displaced in thedirection 21 towards the correspondingover-locking member 25. - 60. Under the effect of this plastic deformation, most keenly felt by the relatively narrow bridges of
material 14 a linking thestop members 14 to thestationary flange 7 if thesemembers 14 are made by a stamping process with said flange 7 (see FIG. 4), eachover-locking member 25 is displaced radially towards the exterior by thestop members 14, under the action of the cam or pointed end. - 61. As the
over-locking members 25 move in this manner, thebosses 30 normally retaining themembers 25 in the retracted position are crushed and/or the correspondingindentations 31 become wider and theover-locking members 25 shift into the active position illustrated in FIG. 5 in which theirteeth 27 co-operate with theteeth 13 of themobile flange 8 so as to assist in immobilising this flange. - 62. Once the
over-locking members 25 are in the active position, they form, in conjunction with thestop members 14 and theplates 11, a continuous circular chain of rigid members meshing with theteeth 13 of the mobile flange over a major part of its periphery, which therefore exhibits greater resistance to the torques acting on the mobile flange. - 63. The pivot mechanism is therefore able to withstand torques in excess of 300 mdaN for a modest additional cost as compared with a conventional mechanism of the prior art.
- 64. It should also be pointed out that the plastic deformation of the
stop members 14 enables a not inconsiderable amount of the mechanical energy induced by the impact on the vehicle to be absorbed, which helps to absorb the impact experienced by the passenger occupying the seat. - 65. The pivot mechanism would operate in the same way if the torque were applied to the
mobile flange 7 in thedirection 20. - 66. It should be pointed out that the
over-locking plates 25 retain their final position after the vehicle has been subjected to an accident: if the impact were high, theover-locking plates 25 would then hold the backrest locked in position. Theseplates 25 are therefore evidence of the amount of damage sustained by the seat and hence an indication to the user and/or service personnel that the seat needs to be replaced in order to guarantee the safety of the passenger. - 67. Clearly, the invention is not limited to the example of an embodiment described above; on the contrary, it includes all possible variants, in particular those in which:
- 68. the pivot mechanism might be used to control an adjustment to the seat other than the inclination of the backrest (for example the height adjustment of the seat part or another adjustment),
- 69. those in which the
spring 18 is arranged inside the housing formed by theflanges - 70. those in which the
spring 18 is replaced by one ormore springs 32 acting directly on thecam 16, it being possible for thesesprings 32 to be housed inrecesses 33, for example, provided to the rear of theover-locking members 25, as illustrated in FIG. 6 (the other elements already described are exactly the same or similar in the embodiment illustrated in FIG. 6, which will therefore not be described in detail), - 71. those in which each
over-locking plate 25 has oneside face 29 arranged as described above and one side face co-operating with a stationary stop member, by meshing, belonging to thestationary flange 7 so that the over-locking plate pivots when it shifts from its retracted position to its active position, - 72. those in which what is referred to as the mobile flange is joined to circular teeth directed radially towards the exterior, in which case the locking
plates 11 and theover-locking plates 25 will be arranged around these teeth and will have teeth pointing radially towards the interior, - 73. and those in which the locking plates pivot between their locking position and retracted position, these plates co-operating as above with stop members by deforming them if the vehicle is subjected to a violent impact so as to drive the over-locking members into their active position.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/754,764 US6328383B2 (en) | 1999-02-25 | 2001-01-04 | Pivot mechanism for a vehicle seat and seat fitted with said mechanism |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9902349 | 1999-02-25 | ||
FR9902349A FR2790230B1 (en) | 1999-02-25 | 1999-02-25 | ARTICULATION MECHANISM FOR VEHICLE SEAT AND SEAT HAVING SUCH A MECHANISM |
US09/501,248 US6325458B1 (en) | 1999-02-25 | 2000-02-10 | Pivot mechanism for a vehicle seat and seat fitted with said mechanism |
US09/754,764 US6328383B2 (en) | 1999-02-25 | 2001-01-04 | Pivot mechanism for a vehicle seat and seat fitted with said mechanism |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/501,248 Division US6325458B1 (en) | 1999-02-25 | 2000-02-10 | Pivot mechanism for a vehicle seat and seat fitted with said mechanism |
Publications (2)
Publication Number | Publication Date |
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US20010001220A1 true US20010001220A1 (en) | 2001-05-17 |
US6328383B2 US6328383B2 (en) | 2001-12-11 |
Family
ID=9542520
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/501,248 Expired - Fee Related US6325458B1 (en) | 1999-02-25 | 2000-02-10 | Pivot mechanism for a vehicle seat and seat fitted with said mechanism |
US09/754,764 Expired - Fee Related US6328383B2 (en) | 1999-02-25 | 2001-01-04 | Pivot mechanism for a vehicle seat and seat fitted with said mechanism |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/501,248 Expired - Fee Related US6325458B1 (en) | 1999-02-25 | 2000-02-10 | Pivot mechanism for a vehicle seat and seat fitted with said mechanism |
Country Status (10)
Country | Link |
---|---|
US (2) | US6325458B1 (en) |
JP (2) | JP3534178B2 (en) |
KR (1) | KR100339033B1 (en) |
CN (1) | CN1148303C (en) |
BR (1) | BR0000912A (en) |
CA (1) | CA2298342C (en) |
DE (1) | DE10009038B4 (en) |
FR (1) | FR2790230B1 (en) |
PL (1) | PL196711B1 (en) |
RU (1) | RU2191710C2 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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-
2000
- 2000-02-10 US US09/501,248 patent/US6325458B1/en not_active Expired - Fee Related
- 2000-02-14 CA CA002298342A patent/CA2298342C/en not_active Expired - Fee Related
- 2000-02-24 RU RU2000104733/28A patent/RU2191710C2/en not_active IP Right Cessation
- 2000-02-24 KR KR1020000009164A patent/KR100339033B1/en not_active IP Right Cessation
- 2000-02-24 BR BR0000912-1A patent/BR0000912A/en active Search and Examination
- 2000-02-25 DE DE10009038A patent/DE10009038B4/en not_active Expired - Fee Related
- 2000-02-25 PL PL338626A patent/PL196711B1/en unknown
- 2000-02-25 JP JP2000049054A patent/JP3534178B2/en not_active Expired - Lifetime
- 2000-02-25 CN CNB001026763A patent/CN1148303C/en not_active Expired - Fee Related
-
2001
- 2001-01-04 US US09/754,764 patent/US6328383B2/en not_active Expired - Fee Related
- 2001-03-28 JP JP2001092816A patent/JP2001299489A/en active Pending
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
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US20040061369A1 (en) * | 2002-07-25 | 2004-04-01 | Yann Reubeuze | Hinge mechanism for a vehicle seat, and a vehicle seat equipped with such a mechanism |
US7168764B2 (en) * | 2002-07-25 | 2007-01-30 | Faurecia Sieges D'automobile Sa | Hinge mechanism for a vehicle seat, and a vehicle seat equipped with such a mechanism |
US20060071526A1 (en) * | 2003-01-24 | 2006-04-06 | Tame Omar D | Recliner assembly for an automotive vehicle seat having a floating cam |
US7165813B2 (en) | 2003-01-24 | 2007-01-23 | Intier Automotive Inc. | Recliner assembly for an automotive vehicle seat having a floating cam |
US6910738B2 (en) | 2003-01-28 | 2005-06-28 | Fisher Dynamics Corporation | Device and method for assembling a recliner mechanism |
US20050168034A1 (en) * | 2004-01-21 | 2005-08-04 | Scott Fast | Disc recliner with dual cams |
US20050212341A1 (en) * | 2004-03-11 | 2005-09-29 | Coughlin Craig J | Round recliner assembly with rear folding latch |
US20050212340A1 (en) * | 2004-03-11 | 2005-09-29 | Scott Fast | Round recliner assembly with rear folding latch |
US20060145523A1 (en) * | 2004-12-10 | 2006-07-06 | Aisin Seiki Kabushiki Kaisha | Vehicle seat reclining apparatus |
US7604296B2 (en) | 2004-12-10 | 2009-10-20 | Aisin Seiki Kabushiki Kaisha | Vehicle seat reclining apparatus |
US7441840B2 (en) | 2005-11-07 | 2008-10-28 | Aisin Seiki Kabushiki Kaisha | Reclining apparatus for vehicle seat |
US20070102982A1 (en) * | 2005-11-07 | 2007-05-10 | Aisin Seiki Kabushiki Kaisha | Reclining apparatus for vehicle seat |
US20070145801A1 (en) * | 2005-12-16 | 2007-06-28 | Aisin Seiki Kabushiki Kaisha | Seat reclining device for vehicle |
US20080203799A1 (en) * | 2007-02-28 | 2008-08-28 | Fuji Kiko Co. Ltd | Seat Reclining apparatus for vehicle |
US8567865B2 (en) * | 2007-06-01 | 2013-10-29 | Toyota Boshoku Kabushiki Kaisha | Connecting apparatuses |
US20100269615A1 (en) * | 2007-06-01 | 2010-10-28 | Toyota Boshoku Kabushiki Kaisha | Connecting apparatuses |
WO2009117249A2 (en) * | 2008-03-20 | 2009-09-24 | Gm Global Technology Operations, Inc. | Recliner adjustment utilizing active materials |
WO2009117249A3 (en) * | 2008-03-20 | 2009-11-12 | Gm Global Technology Operations, Inc. | Recliner adjustment utilizing active materials |
US7931337B2 (en) | 2008-03-20 | 2011-04-26 | Gm Global Technology Operations, Llc | Recliner release actuation through active materials |
US20090250990A1 (en) * | 2008-04-08 | 2009-10-08 | Toyota Boshoku Kabushiki Kaisha | Connection devices in vehicle seats |
US8029064B2 (en) * | 2008-04-08 | 2011-10-04 | Toyota Boshoku Kabushiki Kaisha | Connection devices in vehicle seats |
US20130051899A1 (en) * | 2010-03-15 | 2013-02-28 | Frank Fassbender | Detent fitting for locking two vehicle parts |
US9061608B2 (en) * | 2010-03-15 | 2015-06-23 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Detent fitting for locking two vehicle parts |
WO2013169265A1 (en) * | 2012-05-11 | 2013-11-14 | Lear Corporation | Discontinuous recliner |
CN104172790A (en) * | 2013-05-20 | 2014-12-03 | 东莞向阳金属制品有限公司 | Angle-adjustable fitting |
Also Published As
Publication number | Publication date |
---|---|
FR2790230A1 (en) | 2000-09-01 |
RU2191710C2 (en) | 2002-10-27 |
JP2000245561A (en) | 2000-09-12 |
JP2001299489A (en) | 2001-10-30 |
DE10009038B4 (en) | 2006-01-26 |
KR20000058185A (en) | 2000-09-25 |
US6325458B1 (en) | 2001-12-04 |
CA2298342A1 (en) | 2000-08-25 |
CN1148303C (en) | 2004-05-05 |
DE10009038A1 (en) | 2000-09-07 |
CA2298342C (en) | 2004-01-27 |
FR2790230B1 (en) | 2002-05-24 |
JP3534178B2 (en) | 2004-06-07 |
BR0000912A (en) | 2000-10-10 |
PL338626A1 (en) | 2000-08-28 |
PL196711B1 (en) | 2008-01-31 |
CN1264655A (en) | 2000-08-30 |
US6328383B2 (en) | 2001-12-11 |
KR100339033B1 (en) | 2002-06-01 |
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