EP2776277A1 - Improved articulation device for articulating a motor vehicle seat backrest and associated vehicle seat - Google Patents
Improved articulation device for articulating a motor vehicle seat backrest and associated vehicle seatInfo
- Publication number
- EP2776277A1 EP2776277A1 EP12794397.5A EP12794397A EP2776277A1 EP 2776277 A1 EP2776277 A1 EP 2776277A1 EP 12794397 A EP12794397 A EP 12794397A EP 2776277 A1 EP2776277 A1 EP 2776277A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- backrest
- seat
- piece
- pivoting
- drive system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 36
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 230000002787 reinforcement Effects 0.000 claims description 12
- 239000004952 Polyamide Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 238000002955 isolation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- B60N2/68—Seat frames
- B60N2/686—Panel like structures
-
- 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
- B60N2/02—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
- B60N2/16—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 height-adjustable
- B60N2/1605—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 height-adjustable characterised by the cinematic
- B60N2/161—Rods
- B60N2/1615—Parallelogram-like structure
-
- 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
- B60N2/225—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 cycloidal or planetary mechanisms
-
- 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
- B60N2/68—Seat frames
-
- 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
- B60N2/68—Seat frames
- B60N2/682—Joining means
Definitions
- the invention mainly relates to a motor vehicle seat back articulation device relative to the seat of the same seat.
- the invention also relates to a motor vehicle seat provided with at least one such articulation device.
- Known articulation devices of the motor vehicle seat backs relative to the seat of the same seat involve reinforcements elements mounted in the backrest as well as hinge parts integral with these reinforcing elements and the seat cushion .
- the reinforcing elements are most often in the form of two flanges respectively located at the opposite side edges of the backrest, a high and low cross and a central suspension ply located at the rear face of the folder.
- each flange is secured to a hinge module so that the seat has two hinge modules forming the hinge part of the seat and which are located at the opposite side parts of the seat at the junction between the seat. seat and the seat.
- the articulation modules thus form hard and prominent points of the seat, hindering the occupant of the rear seat since his shins and his feet are directly in contact support with the back of the front seat and more particularly against the hard spots formed by these articulation modules.
- the present invention aims a hinge device to overcome the aforementioned drawback.
- the invention aims at a hinge system adapted not only to the pivoting drive of the seat by the occupant of this seat, but also adapted to the pivoting drive of the seat to release access to the rear seats , especially in a vehicle said to three doors.
- the hinge device of the invention is essentially characterized in that at least one reinforcing piece is secured to the backrest by extending over at least a portion of the height of the rear face of the backrest until at the lower part of the said rear face of the file at the level of which the reinforcing piece is secured to at least one articulated joint piece of the seat which comprises at least one drive system pivoting the backrest relative to the seat by the occupant of said seat.
- the articulation system of the invention may also include the following optional features considered in isolation or in any possible technical combination:
- the reinforcing element is a metal insert which is adapted to be overmolded on the seat back made of composite material.
- the articulation piece is centered on the main longitudinal axis of the backrest, the width of the upper part of the reinforcing piece is greater than the width of the lower part of the reinforcing piece which is secured to the piece of reinforcement; 'joint.
- the articulation member further comprises a drive system pivoting the backrest relative to the seat to release access to the rear seats of the vehicle.
- the device of the invention comprises two reinforcing elements symmetrically arranged relative to each other with respect to the main longitudinal axis of the backrest by forming the reinforcing piece, and whose respective lower part is integral with a hinge element, the two hinge elements are symmetrically arranged relative to one another relative to the main longitudinal axis of the backrest forming the hinge part, and in that the two articulating elements define the first drive system pivoting the backrest by the occupant of the seat, and the second drive system pivoting the backrest to release access to the rear seats of the motor vehicle, the second system pivoting drive of the backrest being disposed above the first drive system in pivoting the backrest.
- the reinforcement piece has two upper zones that are symmetrically arranged relative to one another relative to the main longitudinal axis of the backrest, and the lower part of the reinforcing piece is secured to the piece of reinforcement.
- a hinge which is tubular and which defines the first drive system in pivoting of the backrest by the occupant of the seat and the second drive system in pivoting of the backrest to release access to the rear seats of the motor vehicle, the first and second pivoting drive systems of the backrest being coaxially arranged relative to each other in the tubular joint piece.
- the invention also relates to a motor vehicle seat which is essentially characterized in that it comprises at least one articulation device as previously defined and in that the reinforcing element of said articulation device is overmolded on the seat back which is made of composite material.
- the seat of the invention may also include the following optional features considered in isolation or in any possible technical combination:
- the composite material in which is made the seat back is based on polyamide.
- the two opposite side edges of the folder each comprise a lateral recess at least at the bottom of the folder releasing at least the opposite side spaces of the lower part of the folder over the entire width of said folder.
- FIG. 1 is a diagrammatic representation in rear perspective of a seat of the invention provided with a hinge device of the invention according to a first variant
- FIG. 2 is a diagrammatic representation in rear perspective of a seat of the invention provided with a hinge device of the invention according to a first variant
- FIG. 3 is an enlarged schematic and exploded representation of the articulation part of the hinge device of the second variant.
- a seat 1 comprises a seat 2 and a backrest 3 which has a longitudinal main axis XX 'and which is pivotally mounted relative to the seat 2 about a pivot axis P.
- the articulation device 4 comprises a reinforcing part 5 which extends over part of the height of the rear face 6 of the backrest 3 from the upper part 7 of the rear face 6 of this backrest 3 until 'at the lower part 8 of the rear face 6 of the backrest 3 at which the piece of reinforcement 5 is secured to a hinge part 9 centered on the main longitudinal axis XX 'of the backrest 3.
- the reinforcing element 5 comprises a first 5a and a second 5b reinforcement elements symmetrically arranged relative to each other relative to the longitudinal main axis XX 'of the backrest 3 and each having a chistera shape. .
- the width 11 taken at the upper part 10 of the reinforcing piece 5 is greater than the width 12 taken at the lower part 1 1 of the reinforcing piece 5 at which the reinforcing piece 5 is secured to the articulation piece 9.
- This arrangement makes it possible to center the articulation piece 9 on the main longitudinal axis XX 'of the backrest 3 for the reasons that will be explained later.
- Each reinforcing element 5a, 5b is a metal insert which is overmolded on the rear face 6 of the seat backrest 3 made of a composite material, for example a filled polyamide.
- the hinge piece 9 is secured to the seat 2 by means of a transverse yoke 13 fixed on the seat 2 at the connection areas 14a, 14b.
- Each reinforcing element 5a, 5b is secured at its respective lower part 1 1a, 1 1b to a first 9a and second 9b articulation member which constitute the articulation part 9 and which are symmetrically arranged the one relative to the other relative to the main longitudinal axis XX 'of the file 3.
- the two articulation elements 9a, 9b define on the one hand an electrical drive system pivoting 14 of the backrest 3 relative to the seat 2 by the occupant of the seat 1 and on the other hand a mechanical drive system pivoting 15 of the backrest 3 relative to the seat 2 to release access to the rear seats of the vehicle in the case of a said three-door vehicle.
- the mechanical drive system 15 for pivoting the backrest 3 is manually controlled by the handle 16 located at the upper part 7 of the backrest 3 via cables 17a, 17b.
- the mechanical drive system 15 for pivoting the backrest 3 is located above the electric drive system pivoting 14 of the folder 3 relative to the seat 2 by the occupant of the seat 1 in the articulation part 5 of Figure 1.
- This configuration of the hinge device of the invention has two main advantages.
- the articulation piece 9 being centered at the lower part 8 of the backrest 3, the occupant of the rear seat can position his feet and shins on either side of the seat 1 without being in contact with hard and prominent spots formed by the hinge piece 9.
- the composite material nature of the seat backrest 3 which made possible by the specific configuration and position of the reinforcing part 5 allows to provide substantial weight relief of the seat.
- a seat 21 comprises a seat 22 and a backrest
- the hinge device 24 comprises a reinforcement piece 25 which extends over part of the height of the back face 26 of the backrest.
- the reinforcing element 25 has a first upper zone 25a and a second upper zone 25b symmetrically arranged relative to one another relative to the longitudinal principal axis ⁇ of the backrest 23 so that the element reinforcement 25 has a general shape in Y.
- the width 11 'taken at the upper portion 30 of the reinforcing piece 25 is greater than the width 12' taken at the lower portion 31 of the reinforcing piece 25 at which the reinforcing piece 25 is secured to the articulation piece 29.
- This arrangement makes it possible to center the hinge piece 29 on the main longitudinal axis ⁇ of the backrest 23.
- the reinforcement piece 25 is a metal insert which is overmolded on the rear face 26 of the seat backrest 23 made of a composite material, for example a filled polyamide.
- the hinge piece 29 is tubular and coaxially disposed between two frustoconical connections 33a, 33b respectively connected to the connection points with the seat 34a, 34b.
- the articulation piece 29 comprises an electric pivoting drive system 34 of the backrest 23 relative to the seat 22 by the occupant of the seat 21.
- This electrical drive system pivoting 34 of the backrest 23 consists of a so-called continuous articulation.
- the hinge part 29 further comprises a mechanical drive system pivoting the backrest 23 relative to the seat 22 to release access to the rear seats of the vehicle in the case of a so-called three-door vehicle.
- This mechanical pivoting drive system 35 of the backrest 23 is coaxially juxtaposed at the opposite outer edges 36a, 36b of the electric drive system pivoting 34 of the backrest 23.
- This mechanical pivoting drive system 35 consists of a so-called discontinuous articulation.
- the mechanical pivoting drive system 35 of the backrest 3 is controlled manually by a not shown handle located at the upper part 27 of the backrest 23 via cables not shown similar to the manual control device described and shown in FIG. the first variant.
- the opposite lateral edges 37a, 37b comprise a lateral recess at least at the bottom portion 28 of the backrest 23, which lower portion 28 has a width substantially equal to the width 12 'of the lower part of the reinforcement piece 25 and less than the width of the articulation piece 29 and this, over the entire width of the backrest 23.
- This configuration of the seat backrest 21 allows, while ensuring the dorsal maintenance of the occupant of the seat 21, to release the opposite lateral spaces of the lower portion 28 of the seat backrest 23 over the entire width of the backrest 23, this allows the occupant of the rear seat to comfortably arrange his feet and shins.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1160078A FR2982207B1 (en) | 2011-11-07 | 2011-11-07 | IMPROVED JOINT DEVICE FOR A MOTOR VEHICLE SEAT BACK AND ASSOCIATED VEHICLE SEAT |
PCT/FR2012/052493 WO2013068674A1 (en) | 2011-11-07 | 2012-10-29 | Improved articulation device for articulating a motor vehicle seat backrest and associated vehicle seat |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2776277A1 true EP2776277A1 (en) | 2014-09-17 |
Family
ID=47263432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12794397.5A Withdrawn EP2776277A1 (en) | 2011-11-07 | 2012-10-29 | Improved articulation device for articulating a motor vehicle seat backrest and associated vehicle seat |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2776277A1 (en) |
CN (1) | CN104039593A (en) |
FR (1) | FR2982207B1 (en) |
WO (1) | WO2013068674A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2999126B1 (en) * | 2012-12-07 | 2014-12-26 | Faurecia Sieges Dautomobile | SEAT FRAME AND METHOD FOR MANUFACTURING THE SAME |
US10214126B2 (en) * | 2014-05-27 | 2019-02-26 | Adient Luxembourg Holding S.a.r.l. | Seat back of hybrid construction and a process for forming a seat back of hybrid construction |
CN110435501B (en) * | 2019-08-23 | 2021-08-27 | 延锋汽车饰件系统有限公司 | Automobile seat and automobile comprising same |
DE102019134704A1 (en) | 2019-12-17 | 2021-06-17 | Grammer Aktiengesellschaft | Vehicle seat |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2244313A1 (en) * | 1972-09-09 | 1974-03-21 | Ymos Metallwerke Wolf & Becker | VEHICLE SEAT |
US5253924A (en) * | 1991-06-11 | 1993-10-19 | Concept Analysis Corporation | Blow molded seat back with integral reinforcing member |
BRPI1006285A2 (en) * | 2009-03-02 | 2016-04-19 | Faurecia Automotive Seating | seat back, seat assembly and method of forming a seat back |
FR2949398B1 (en) * | 2009-09-03 | 2011-08-26 | Faurecia Sieges Automobile | VEHICLE SEAT AND METHOD FOR MANUFACTURING THE SAME |
CN201610089U (en) * | 2009-12-28 | 2010-10-20 | 宁波均胜工业有限公司 | Hinge for hinging seat back and base of vehicle child safety seat |
-
2011
- 2011-11-07 FR FR1160078A patent/FR2982207B1/en not_active Expired - Fee Related
-
2012
- 2012-10-29 EP EP12794397.5A patent/EP2776277A1/en not_active Withdrawn
- 2012-10-29 WO PCT/FR2012/052493 patent/WO2013068674A1/en active Application Filing
- 2012-10-29 CN CN201280066099.4A patent/CN104039593A/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2013068674A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN104039593A (en) | 2014-09-10 |
FR2982207A1 (en) | 2013-05-10 |
FR2982207B1 (en) | 2014-05-09 |
WO2013068674A1 (en) | 2013-05-16 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 20140505 |
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17Q | First examination report despatched |
Effective date: 20150714 |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: B60N 2/68 20060101ALI20160113BHEP Ipc: B60N 2/235 20060101ALI20160113BHEP Ipc: B60N 2/02 20060101AFI20160113BHEP Ipc: B60N 2/16 20060101ALI20160113BHEP Ipc: B60N 2/225 20060101ALI20160113BHEP |
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INTG | Intention to grant announced |
Effective date: 20160209 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20160621 |