CN105730299B - A kind of chair framework - Google Patents
A kind of chair framework Download PDFInfo
- Publication number
- CN105730299B CN105730299B CN201610156395.3A CN201610156395A CN105730299B CN 105730299 B CN105730299 B CN 105730299B CN 201610156395 A CN201610156395 A CN 201610156395A CN 105730299 B CN105730299 B CN 105730299B
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- CN
- China
- Prior art keywords
- plate
- seat
- dive
- side edges
- chair framework
- 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.)
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Links
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 210000001217 buttock Anatomy 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
-
- 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
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/427—Seats or parts thereof displaced during a crash
- B60N2/42709—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure
- B60N2/42718—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure with anti-submarining systems
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a kind of chair framework, belongs to automotive seating art field.The chair framework includes seat side edges plate,Seat front end board component,Anti- dive plate,Connector and actuator,Front end of the both ends of seat front end board component respectively with two seat side edges plates is fixedly connected,What anti-dive plate can be slided unidirectionally is erected on two seat side edges plates,Anti- dive plate is connected with seat front end board component by frangible connection,When emergency brake or head-on crash occur for vehicle,Actuator starts rapidly,Frangible connection is broken,Then actuator drives anti-dive plate to be moved to occupant's buttocks side by connector,And because anti-dive plate may only be moved unidirectionally,Institute can hold occupant's buttocks in a short time to prevent dive plate after emergency brake or collision produce,Row constraint is entered to the basin bony site of occupant,The inferoanterior for avoiding the buttocks of occupant to seat is mobile and be likely to occur and steering column,Instrument board etc. collides.
Description
Technical field
The present invention relates to automotive seating art field, more particularly to a kind of chair framework.
Background technology
The major function of automotive seat is the weight for supporting occupant, relaxes the vibration and impact transmitted by vehicle body, is
Occupant provides comfortable and safe seating environment.
In motor-vehicle seat system, seat and the automotive seat installation ground of automotive seat (are used for solid i.e. on automobile chassis
Dingan County fill automotive seat region) between be provided with an angle, to cause the buttocks of occupant to be less than automotive seat front end, from
And seat can be caused to have a holding power rearward to occupant, avoid that emergency brake or head-on crash occurs in automobile
When, occupant is due to effect of inertia, the forward slip from seat, impinges upon the in-car part such as steering column, steering wheel, instrument board
On.
But because the angle of seat is smaller, so when emergency brake or head-on crash occur for automobile, occupant's
Basin bony site still can be slided forwards under effect of inertia, so as to cause collision accident.
The content of the invention
In order to solve the problems of in the prior art, the embodiments of the invention provide a kind of chair framework.The skill
Art scheme is as follows：
The embodiments of the invention provide a kind of chair framework, the chair framework includes seat side edges plate, seat front end-plate
Component and anti-dive plate, the parallel relative spacing of the two seat side edges plates are set, the both ends difference of seat front end board component
It is fixedly connected with the front end of the two seat side edges plates, what the anti-dive plate can be slided unidirectionally is erected at two seat side edges
On plate, and the anti-dive plate is located at the seat front end board component rear, the anti-dive plate and the seat front end-plate group
Part is connected by frangible connection, and the chair framework also includes connector and actuator, and the actuator passes through the connection
Part is connected with the anti-dive plate, and the actuator is used to make the anti-dive plate along the seat side edges plate to away from the seat
The direction of chair front end board component is slided, and when the actuator starts, the frangible connection breaks in the presence of the actuator
Split.
Preferably, the anti-dive plate includes the plate body being arranged between the two seat side edges plates and is arranged on the plate
Body both ends and respectively slidably supporting plate of the limited support on the two seat side edges plates, it is provided with the supporting plate unidirectional
Locking structure.
Preferably, the unidirectional locking structure includes fixed plate, locking button and mounting seat, and the mounting seat is inserted into described
In supporting plate, and the mounting seat, towards a mounting groove is provided with one end of the seat side edges plate, the locking button can edge
Being inserted into the mounting groove for the axially activity of the mounting groove, passes through elastic member between the locking button and the mounting groove
Part is connected, and the fixed plate is fixedly connected in the mounting seat, and the fixed plate is used to the mounting seat being fixedly connected on
In the supporting plate, the position that the locking button is corresponded on the seat side edges plate is provided with multiple bayonet sockets, multiple bayonet sockets
It is arranged at intervals along the glide direction of the anti-dive plate, the locking button can be in bayonet socket described in partial insertion, and the locking button is inserted
Entering the part of the bayonet socket includes sliding bevel a and locking surface b, and the sliding bevel a is used for when the anti-dive plate is to remote
During the seat front end board component direction movement, the locking is withheld into out the bayonet socket, the locking surface b is described for preventing
Anti- dive plate moves to the seat front end board component direction.
Further, the flexible member is spring.
Further, the connector is steel wire rope.
Alternatively, seat front end board component includes seat front end-plate and is fixedly connected on the seat front end-plate
Contiguous block, the anti-dive plate are connected with the contiguous block by the frangible connection.
Preferably, the frangible connection is followed closely for injection.
Preferably, the actuator is gas generator, after the gas generator is arranged on the seat side edges plate
End.
Preferably, the gas generator is controlled by the air bag system of automobile.
Alternatively, the chair framework also includes slide rail, and the two seat side edges plates are slidably disposed in two institutes respectively
State in slide rail.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：By vehicle occur emergency brake or
During head-on crash, actuator starts rapidly, and in the presence of actuator, frangible connection fracture, then actuator passes through connection
Part drives anti-dive plate to be moved to occupant's buttocks side, and because anti-dive plate may only be moved unidirectionally, institute is to prevent dive
Plate can hold occupant's buttocks in a short time after emergency brake or collision produce, and the basin bony site of occupant is carried out about
Beam, the inferoanterior for avoiding the buttocks of occupant to seat is mobile and what is be likely to occur touch with steering column, instrument board etc.
Hit.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structural representation of chair framework provided in an embodiment of the present invention；
Fig. 2 is the structural representation of another chair framework provided in an embodiment of the present invention；
Fig. 3 is the sectional view in the A-A directions in Fig. 2；
Fig. 4 is the set-up mode of another unidirectional locking structure provided in an embodiment of the present invention；
Fig. 5 is the sectional view in B-B directions in Fig. 4；
Fig. 6 is a kind of seat front end board component provided in an embodiment of the present invention and anti-dive plate junction schematic diagram.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
It should be noted that for the ease of describing, the description in the present embodiment for orientation, " preceding " refers to occupant just
Front when on automotive seat often is sitting in, " rear " refers to the opposite direction of " preceding ", and " left side " refers to the direction on the occupant left side, and " right side " refers to
Direction on the right of occupant.
The embodiments of the invention provide a kind of chair framework, Fig. 1 is a kind of chair framework provided in an embodiment of the present invention
Structural representation, as shown in figure 1, the chair framework includes seat side edges plate 1, seat front end board component 2 and anti-dive plate 3, two
1 parallel relative spacing of seat side edges plate is set, and the front end of the both ends of seat front end board component 2 respectively with two seat side edges plates 1 is consolidated
Fixed connection, what anti-dive plate 3 can be slided unidirectionally is erected on two seat side edges plates 1, and anti-dive plate 3 is located at seat front end-plate group
The rear of part 2, anti-dive plate 3 are connected with seat front end board component 2 by frangible connection 23, and chair framework also includes connector 11
With actuator 12, actuator 12 is connected by connector 11 with anti-dive plate 3, and actuator 12 is used to make anti-dive plate 3 along seat
Side board 1 slides to the direction away from seat front end board component 2, and when actuator 12 starts, frangible connection 23 is in actuator 12
In the presence of be broken.
The embodiment of the present invention is by the way that when emergency brake or head-on crash occur for vehicle, actuator starts rapidly, is making
In the presence of dynamic device, frangible connection fracture, then actuator drives anti-dive plate to occupant's buttocks side by connector
It is mobile, and because anti-dive plate may only be moved unidirectionally, institute to prevent dive plate can after emergency brake or collision produce
Occupant's buttocks is held in short time, row constraint is entered to the basin bony site of occupant, avoids the buttocks of occupant to seat
Inferoanterior is mobile and what is be likely to occur collide with steering column, instrument board etc..
Preferably, actuator 12 is gas generator, and gas generator is arranged on the rear end of seat side edges plate 1, gas hair
The raw device response time is short, can shorten vehicle keeping it in mind brake or collide and start the mobile time to anti-dive plate 3, in gas
After body generator starts, gas generator pulls anti-dive plate 3 by connector 11 so that frangible connection 23 is broken, under preventing
Latent plate 3 moves to occupant's buttocks side.
It should be noted that actuator 12 can also be arranged on the front end of seat side edges plate 1, so as to start in actuator 12
Afterwards, anti-dive plate 3 is promoted to move by thrust, it is contemplated that when actuator 12 promotes anti-dive plate 3 to move by thrust
When, connector 11 is necessary for hard structure.
Preferably, gas generator is controlled by the air bag system of automobile so that anti-dive plate 3 and air bag phase
Coordinate, occupant is shielded jointly, avoid occupant and steering column, instrument board etc. from colliding.
Fig. 2 is the structural representation of another chair framework provided in an embodiment of the present invention, as shown in Fig. 2 anti-dive plate 3
Including the plate body 31 that is arranged between two seat side edges plates 1 and be arranged on the both ends of plate body 31 and respectively slidably limited support two
Supporting plate 32 on seat side edges plate 1, unidirectional locking structure is provided with supporting plate 32.
Fig. 3 is the sectional view in the A-A directions in Fig. 2, as shown in figure 3, unidirectional locking structure includes fixed plate 73, locking button
72 and mounting seat 7, mounting seat 7 be inserted into supporting plate 32, and mounting seat 7 is towards being provided with one in one end of seat side edges plate 1
Mounting groove 71, locking button 72 can be inserted into mounting groove 71 along the axially movable of mounting groove 71, locking button 72 and mounting groove 71
Between connected by flexible member 6, fixed plate 73 is fixedly connected in mounting seat 7, and fixed plate 73 is used for the company of fixation of mounting seat 7
It is connected in supporting plate 32, the position that locking button 72 is corresponded on seat side edges plate 1 is provided with multiple bayonet sockets 13, and multiple bayonet sockets 13 are along anti-
The glide direction of dive plate 3 is arranged at intervals, and locking button 72 can be in partial insertion bayonet socket 13, and locking button 72 inserts the part of bayonet socket 13
Including sliding bevel 72a and locking surface 72b, sliding bevel 72a is used for when anti-dive plate 3 moves to away from the direction of seat front end-plate 21
When dynamic, locking button 72 is extruded into bayonet socket 13, locking surface 72b is used to prevent anti-dive plate 3 from moving to the direction of seat front end-plate 21, led to
The unidirectional slip that unidirectional locking structure realizes anti-dive plate 3 is crossed, avoids anti-dive plate 3 after movement and returns to original position, is lost
Go the supporting role to occupant.
In addition, supporting plate 32 is bending structure, and two supporting plates 32 are positioned opposite, can make it that seat side edges plate 1 is right
The support of anti-dive plate 3 more balances.
It is envisioned that being provided with locking button accommodating chamber 61 in mounting groove 71, locking button accommodating chamber 61 is used in locking
When button 72 is deviate from from bayonet socket 13, locking button 72 is accommodated.
Alternatively, flexible member 6 is spring, and locking is buckled into 72 by spring is pressed in bayonet socket 13, is realized simply, and bullet
Spring is easily changed.
Preferably, connector 11 is steel wire rope, and actuator 12 and anti-dive plate 3 are connected by the steel wire rope of flexibility, can be with
So that when chair framework deforms, the still anti-dive plate 3 of stretchy after actuator 12 starts, make anti-dive plate 3 along seat side
Side plate 1 moves.
Fig. 4 is the set-up mode of another unidirectional locking structure provided in an embodiment of the present invention, and Fig. 5 is B-B directions in Fig. 4
Sectional view, as shown in figure 5, locking button 72 can be movable in the side wall of seat side board 1.
Preferably, unidirectional locking structure also includes baffle plate 74, and it is opposite that baffle plate 74 and installing plate 73 are arranged on supporting plate 32
Both sides, baffle plate 74 are used to keep off the part of locking button 72 in mounting groove 71, avoid locking button 72 from deviating from from mounting seat 7.
It should be noted that, although the bayonet socket 13 in Fig. 5 is the slot structure being arranged on seat side edges plate 1, in other realities
Apply in example, bayonet socket 13 is it can also be provided that pore structure.
Fig. 6 is a kind of seat front end board component provided in an embodiment of the present invention and anti-dive plate junction schematic diagram, such as Fig. 6
Shown, seat front end board component 2 includes seat front end-plate 21 and the contiguous block 22 being fixedly connected on seat front end-plate 21, under preventing
Latent plate 3 is connected with contiguous block 22 by frangible connection 23, thick because seat front end-plate 21 and anti-dive plate 3 are sheet metal component
Spend it is small, if so directly use the connecting chair front end-plate 21 of frangible connection 23 and anti-dive plate 3, may be in actuator 12
When not starting also, frangible connection 23 is just cut off, and causes wrong diagnosis to split, by setting contiguous block 22 on seat front end-plate 21
Afterwards, it is possible to increase the contact area of contiguous block 22 and frangible connection 23, avoid when actuator 12 does not start, frangible connection
23 are just cut off by seat front end-plate 21 and anti-dive plate 3.
Specifically, as shown in fig. 6, contiguous block 22 is bolted to connection on seat front end-plate 21, on anti-dive plate 3
The position setting of corresponding contiguous block 22 is jagged, and the U-lag for inserting breach, anti-dive are provided with the side wall of contiguous block 22
The barbed portion of plate 3 is fastened in U-lag, and the position that U-lag is corresponded on contiguous block 22 is provided with the first connecting hole 24, anti-dive
The position of corresponding first connecting hole 24 is provided with the second connecting hole 33 on plate 3, and frangible connection 23 is inserted into the first connecting hole 24
In the second connecting hole 33.
Alternatively, frangible connection 23 is followed closely for injection, and injection is set in the connecting hole on contiguous block 22 and anti-dive plate 3
Nail, it is ensured that play a part of the anti-dive plate 3 of connection and seat front end board component 2 when actuator 12 does not start, in actuator
12 are broken when starting, and anti-dive plate 3 is slided in the presence of actuator 12.
Preferably, pressure sensor is additionally provided with anti-dive plate 3, pressure sensor can be by the pressure information on seat
Inform the controller of actuator 12, such as vehicle-mounted computer so that vehicle-mounted computer by the size of pressure judge on seat whether
There is occupant, avoid when emergency brake or collision occurs in vehicle, without the actuator 12 on the seat of occupant
Start.
It should be noted that pressure sensor can also be arranged in the other structures of seat, such as seat side edges plate 1.
Referring again to Fig. 2, chair framework also includes slide rail 5, and two seat side edges plates 1 are slidably disposed in two slide rails respectively
In 5, seat side edges plate 1 is arranged in slide rail 5, the convenient position for adjusting seat, to cause seat to be adapted to different seatings
The needs of person.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of chair framework, it is characterised in that the chair framework includes seat side edges plate (1), seat front end board component (2)
With anti-dive plate (3), the parallel relative spacing of the two seat side edges plates (1) is set, the both ends of seat front end board component (2)
The front end with the two seat side edges plates (1) is fixedly connected respectively, and what the anti-dive plate (3) can unidirectionally be slided is erected at two institutes
State on seat side edges plate (1), and the anti-dive plate (3) is located at the seat front end board component (2) rear, the anti-dive plate
(3) it is connected with seat front end board component (2) by frangible connection (23), the chair framework also includes connector (11)
With actuator (12), the actuator (12) is connected by the connector (11) with the anti-dive plate (3), the actuator
(12) it is used to make the anti-dive plate (3) along the seat side edges plate (1) to the direction away from seat front end board component (2)
Slide, when the actuator (12) starts, the frangible connection (23) is broken in the presence of the actuator (12).
2. chair framework according to claim 1, it is characterised in that the anti-dive plate (3) includes being arranged on described in two
Plate body (31) between seat side edges plate (1) and be arranged on the plate body (31) both ends and respectively slidably limited support in two institutes
The supporting plate (32) on seat side edges plate (1) is stated, unidirectional locking structure is provided with the supporting plate (32).
3. chair framework according to claim 2, it is characterised in that the unidirectional locking structure include fixed plate (73),
Locking button (72) and mounting seat (7), the mounting seat (7) are inserted into the supporting plate (32), and the mounting seat (7) direction
A mounting groove (71) is provided with one end of the seat side edges plate (1), the locking button (72) can be along the mounting groove (71)
Axially activity be inserted into the mounting groove (71), pass through elasticity between the locking button (72) and the mounting groove (71)
Element (6) is connected, and the fixed plate (73) is fixedly connected in the mounting seat (7), and the fixed plate (73) is used for by described in
Mounting seat (7) is fixedly connected in the supporting plate (32), and the position of the locking button (72) is corresponded on the seat side edges plate (1)
Install and be equipped with multiple bayonet sockets (13), glide direction of multiple bayonet sockets (13) along the anti-dive plate (3) is arranged at intervals, described
Locking button (72) can be in bayonet socket (13) described in partial insertion, and the part that the locking button (72) inserts the bayonet socket (13) includes sliding
Dynamic inclined-plane (72a) and locking surface (72b), the sliding bevel (72a) are used for when the anti-dive plate (3) is to away from the seat
When front end board component (2) direction is moved, the locking button (72) is extruded into the bayonet socket (13), the locking surface (72b) is used for
The anti-dive plate (3) is prevented to be moved to the seat front end board component (2) direction.
4. chair framework according to claim 3, it is characterised in that the flexible member (6) is spring.
5. chair framework according to claim 1, it is characterised in that the connector (11) is steel wire rope.
6. chair framework according to claim 1, it is characterised in that before seat front end board component (2) includes seat
End plate (21) and the contiguous block (22) being fixedly connected on the seat front end-plate (21), the anti-dive plate (3) and the company
Block (22) is connect to connect by the frangible connection (23).
7. chair framework according to claim 6, it is characterised in that the frangible connection (23) is followed closely for injection.
8. chair framework according to claim 1, it is characterised in that the actuator (12) is gas generator, described
Gas generator is arranged on the rear end of the seat side edges plate (1).
9. chair framework according to claim 8, it is characterised in that the air bag that the gas generator passes through automobile
System controls.
10. chair framework according to claim 1, it is characterised in that the chair framework also includes slide rail (5), two institutes
Seat side edges plate (1) is stated to be slidably disposed in respectively in two slide rails (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156395.3A CN105730299B (en) | 2016-03-17 | 2016-03-17 | A kind of chair framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156395.3A CN105730299B (en) | 2016-03-17 | 2016-03-17 | A kind of chair framework |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105730299A CN105730299A (en) | 2016-07-06 |
| CN105730299B true CN105730299B (en) | 2017-11-14 |
Family
ID=56250882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610156395.3A Active CN105730299B (en) | 2016-03-17 | 2016-03-17 | A kind of chair framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105730299B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106510264B (en) * | 2016-12-22 | 2023-08-11 | 湖北中航精机科技有限公司 | Seat, seat angle adjuster and locking cam thereof |
| JP7035515B2 (en) * | 2017-12-25 | 2022-03-15 | トヨタ自動車株式会社 | Vehicle seat |
| CN111674299B (en) * | 2020-03-26 | 2022-07-29 | 浙江吉利控股集团有限公司 | Seat anti-dive structure and car seat |
| CN112550095B (en) * | 2020-11-10 | 2021-12-10 | 浙江合众新能源汽车有限公司 | Reinforced anti-diving and anti-sliding structure for rear seats of automobile |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100456555B1 (en) * | 2001-08-14 | 2004-11-10 | 현대자동차주식회사 | Pannel structure to prevent submarine for automobile |
| JP5463659B2 (en) * | 2008-12-04 | 2014-04-09 | 日産自動車株式会社 | Seat cushion structure for vehicle seat |
| DE102013101540B4 (en) * | 2013-02-15 | 2021-10-07 | Faurecia Autositze Gmbh | Vehicle seat, in particular for a motor vehicle |
| JP6163784B2 (en) * | 2013-02-28 | 2017-07-19 | アイシン精機株式会社 | Vehicle seat slide device |
| US8770616B1 (en) * | 2013-03-15 | 2014-07-08 | Ford Global Technologies, Llc | Deployable footrest assembly |
| CN104029617A (en) * | 2014-06-18 | 2014-09-10 | 上海大学 | Automobile seat for actively and synergistically regulating cushion angle and backrest angle |
-
2016
- 2016-03-17 CN CN201610156395.3A patent/CN105730299B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105730299A (en) | 2016-07-06 |
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