CN203805740U - Seat folding mechanism - Google Patents
Seat folding mechanism Download PDFInfo
- Publication number
- CN203805740U CN203805740U CN201420191736.7U CN201420191736U CN203805740U CN 203805740 U CN203805740 U CN 203805740U CN 201420191736 U CN201420191736 U CN 201420191736U CN 203805740 U CN203805740 U CN 203805740U
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- Prior art keywords
- shifting block
- locking
- accessory
- pawl plate
- protuberance
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- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 title claims abstract description 47
- 230000000994 depressogenic effect Effects 0.000 claims description 10
- 210000001364 upper extremity Anatomy 0.000 claims description 7
- 230000007306 turnover Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 2
- 208000019300 CLIPPERS Diseases 0.000 description 1
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses a seat folding mechanism which comprises a first part, second parts and a locking and unlocking mechanism. The locking and unlocking mechanism comprises at least one pawl plate, at least one shifting block, an unlocking handle and a tension spring. The shifting block is installed between the second parts in a rotatable mode through a shifting block shaft. In the locking state, the bottom of the shifting block acts on a locking convex part at the top of the pawl plate. In the unlocking state, the bottom of the shifting block acts on an unlocking convex part of the pawl plate. The unlocking handle is fixed to the shifting block shaft, drives the shifting block to rotate through the shifting block shaft, and is connected with an unlocking wiring harness. One end of the tension spring is hooked at the top of the shifting block, and the other end of the tension spring is hooked on the second parts. Compared with an existing folding mechanism, the seat folding mechanism has the advantages that the locking and unlocking functions are achieved through the shifting block, the unlocking handle and the tension spring, the structure is accordingly simplified, and cost is accordingly reduced; meanwhile, a locking gap is eliminated through locking of an upper locking arc and a lower locking arc between the bottom of the shifting block and the top of the pawl plate.
Description
Technical field
The utility model relates to seat folding mechanism.
Background technology
At present national legislation requires back seat midway location assembling body-restraining seat belt, when three attachment points of body-restraining seat belt all on the seat and when back seat is integral chair again, the fold mechanism intensity that Connection Block is leaned on is had higher requirement; Market competition has proposed again the requirement of high-performance and low-cost to product; How to guarantee the intensity of body-restraining seat belt integral type back seat on the seat and with low cost, current fold mechanism is difficult to satisfy the demands.
Chinese patent Granted publication CN101228044B discloses a kind of preventing and has discharged mechanism arrangement from the locking that comprises safety catch of opening, it allows the first accessory and the second accessory lock each other and discharge, this device comprises actuating device and detent plate, and the latter can oppositely move by drive element and remove the locking to described ratchet at a lock position crevis relevant with the first accessory and in a releasing position.This patent is openly actually a kind of fold mechanism that is applicable to back of seat, the existing problem of this patent is exactly that part is more, for example, referring to Fig. 1, the second accessory 2 that it the first accessory 1 that comprises that two block structures are identical is identical with two block structures, two the first accessories 1 are positioned at seat support bit position, two the second accessories 2 are positioned at seatback portion, the top of two the first accessories 1 is clipped between the bottom of two the second accessories 2 and is rotatably connected by rotating shaft 3 and two the second accessories 2, such the second accessory 2 around the shaft 3 rotating photos moves for the first accessory 1, back of seat is folded.On the arc section 11 at two the first accessory 1 tops, be provided with corresponding tooth 11a.Between the first accessory 1 and the second accessory 2, rely on a locking and release mechanism to realize locking and unlocking function.This locking comprises with release mechanism the pawl plate 4 that two block structures are identical, the detent plate 5 that two block structures are identical, driven wheel 6 and wind spring 7, pawl plate 4 is installed in rotation on the midway location of two the second accessories 2 by pawl plate axle 45, driven wheel 6 is located between the top of two the second accessories 2 by gear shaft 61 axles, wind spring 7 is enclosed within gear shaft 61, its one end acts on to connect on two riveting posts 21 between the second accessory 2 tops, the other end acts on driven wheel 6, the detent plate 5 that two block structures are identical is located between the middle part of two the second accessories 2 by brake operating shaft 51 axles, detent plate 5 tops that two block structures are identical be provided with driven wheel 6 on the intermeshing driven tooth 53 of driving gear 62, bottom is provided with the actuating arm 52 that drives pawl plate 4 actions to realize locking and unlocking function, the top of pawl plate 4 is provided with to realize the release protuberance 41 of unlocking function and in order to realize locking protuberance 42 and a depressed part 43 of latch functions, and dispose ratchet 44 in the bottom of pawl plate 4.When the actuating arm 52 of detent plate 5 moves to while contacting with release protuberance 41, actuating arm 52 will drive pawl plate 4 to rotate counterclockwise by release protuberance 41, make the ratchet 44 of pawl plate 4 bottoms and the tooth 11a at two the second accessory 1 tops depart from engagement, such the second accessory 2 around the shaft 3 rotating photos moves for the first accessory 1, and back of seat is folded.And move to while contacting with locking protuberance 42 when the actuating arm 52 of detent plate 5, actuating arm 52 will drive pawl plate 4 to clockwise rotate by locking protuberance 42, make the ratchet 44 of pawl plate 4 bottoms and the tooth 11a at two the second accessory 1 tops engagement, such the second accessory 2 just around the shaft 3 rotating photos for the first accessory 1, move, make to realize locking between back of seat and seat seat.By above analysis, the locking of this patent and release mechanism need to lean on the rotation of a driven wheel 6 to realize locking and unlocking function, and utilize wind spring 7 backrush that driven wheel 6 is resetted, and and increase a driven wheel 6, will make whole locking and release mechanism be tending towards complicated, cost is also high.
In addition as seen from Figure 1, its first accessory 1 relies on two bolts to realize with being connected of seat support bit position, consider moment, between two bolts, must have certain distance, to increase the arm of force, reduce the shearing force of bolt, but owing to being subject to the space constraint of seat, distance between two bolts can not increase a lot, the shearing force that therefore two bolts bear is still very large, therefore must use high-intensity bolt, this has also increased cost.
Utility model content
The problems such as that technical problem to be solved in the utility model is is high for the existing complex structure of existing fold mechanism, cost, complicated operation and provide a kind of simple in structure, cost is low, simple to operate and zero-lash seat folding mechanism.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A seat folding mechanism, comprising:
At least one the first accessory, described the first accessory is positioned at seat support bit position and on the arc surface at its top, disposes locking tooth;
At least one the second accessory, described the second accessory is positioned at seatback portion, between the top of the first accessory and the bottom of the second accessory, by the first rotating shaft, is rotatably connected;
One locking and release mechanism, described locking and release mechanism comprise:
At least one pawl plate, described pawl plate is installed in rotation on described the second accessory midway location by pawl plate axle, at the top of described pawl plate, be provided with to realize the release protuberance of unlocking function and in order to realize the locking protuberance of latch functions, and in the bottom of pawl plate, dispose ratchet, under lockup state, the ratchet of described pawl plate bottom and the engagement of the locking tooth on described the first accessory top arc face; It is characterized in that, described locking and release mechanism also comprise:
At least one shifting block, described shifting block is installed in rotation on described the second accessory midway location by shifting block axle, when lockup state, the bottom of described shifting block acts on the locking protuberance at described pawl plate top, when released state, the bottom of described shifting block acts on the release protuberance of described pawl plate;
One release lever, described release lever is fixed on described shifting block axle and by shifting block axle and drives shifting block to rotate, and described release lever is connected with release wire harness;
One extension spring, one end of described extension spring is hooked on the top of described shifting block, and the other end is hooked on described the second accessory.
In a preferred embodiment of the present utility model, top side configuration at described locking protuberance has locking arc on a section, and in the bottom of described shifting block, dispose one section of lower locking arc, when lockup state, lower locking arc and the upper locking arc on locking protuberance end face of shifting block bottom are intermeshing.The object that configures upper and lower locking arc can also be eliminated locking gap.
In a preferred embodiment of the present utility model, at the top of described pawl plate, be provided with a depressed part, described depressed part is between described locking protuberance and release protuberance; In the bottom of described shifting block, be also provided with forerunner's protuberance, before entering lockup state, first described forerunner's protuberance contacts with the bottom of the depressed part at described pawl plate top, drive pawl plate to clockwise rotate, so that the lower locking arc of described shifting block bottom and the upper locking arc on locking protuberance end face enter engagement.
In a preferred embodiment of the present utility model, top at described shifting block is also provided with a spring hook trough, and on described the second accessory, dispose a spring lifting lug, and one end of described extension spring is hooked in the spring hook trough at described shifting block top, and the other end is hooked on described spring lifting lug.
In preferred embodiment of the utility model, the vertical sectional shape of described the first accessory is English alphabet R shape roughly, its bottom have a foreleg and, a back leg, above back leg, offer two bolts hole, under the effect of turnover operating effort, described foreleg can be supported on seat cushion framework, to share a part by acting on two bolt clippers shear force through bolt hole, thereby the shearing force on reduction bolt, the bolt that working strength is lower is like this also passable, has therefore reduced cost.
Owing to having adopted technical scheme as above, the more existing fold mechanism of the utility model has been cancelled gear and wind spring, by a shifting block, a release lever and an extension spring, realize locking and unlocking function, therefore simplify the structure, reduce cost, utilized the locking of the upper and lower locking arc between shifting block bottom and pawl plate top to eliminate locking gap simultaneously.In addition by changing the structure of the first accessory, make the first accessory under lockup state, can have a strong point to be supported on seat cushion framework, and the distance between the strong point and bolt is extended, thereby share the shearing force acting on bolt, it is also feasible making the bolt that the utility model working strength is lower, has further lowered cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing fold mechanism.
Fig. 2 is the exploded perspective view of a kind of seat folding mechanism of the present utility model.
Fig. 3 is the exploded perspective view of another kind of seat folding mechanism of the present utility model.
Fig. 4 is the schematic diagram of seat folding mechanism of the present utility model in lockup state.
Fig. 5 is the schematic diagram of seat folding mechanism of the present utility model in released state.
Fig. 6 is the schematic diagram of seat folding mechanism of the present utility model in folded state.
Fig. 7 is the annexation schematic diagram between release lever and release wire harness in seat folding mechanism of the present utility model.
Fig. 8 is under lockup state, the holding state schematic diagram of foreleg and seat cushion framework in the first accessory in seat folding mechanism of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further describe the utility model.
Referring to Fig. 2, a kind of seat folding mechanism shown in figure, comprises that first accessory 100 and two the second accessory 200, the first accessories 100 are positioned at seat support bit position and dispose locking tooth 111 on the arc surface 110 at its top; Two the second accessories 200 are positioned at seatback portion, between the top of two the second accessories 200, by two riveting posts 210, connect, and between two the second accessories 200, are provided with an installing space.The top of first accessory 100 is clipped between the bottom of two the second accessories 200 and is rotatably connected by rotating shaft 120.Seatback portion just can fold like this.
Between first accessory 100 and two the second accessories 200, by a locking and release mechanism, carry out locking and release.This locking and release mechanism comprise a pawl plate 310, shifting block 320, extension spring 330 and a release lever 340.
Pawl plate 310 is installed in rotation on the midway location of two the second accessories 200 by pawl plate axle 311, at the top of pawl plate 310, be provided with to realize the release protuberance 313 of unlocking function and in order to realize locking protuberance 312 and a depressed part 314 of latch functions, depressed part 314 is between locking protuberance 312 and release protuberance 313; In the bottom of pawl plate 310, dispose ratchet 315, under lockup state, locking tooth 111 engagements (referring to Fig. 4) on the arc surface 110 at the ratchet 315 of pawl plate 310 bottoms and the first accessory 100 tops.Top side configuration at locking protuberance 312 has locking arc 312a on a section in addition
Shifting block 320 is installed in rotation on the midway location of two the second accessories 200 by shifting block axle 321, dispose one section of lower locking arc 322 and forerunner's protuberance 323 in the bottom of shifting block 320, also disposes a spring hook trough 324 in addition at the top of shifting block 320.
Release lever 340 is fixed on shifting block axle 321 and by shifting block axle 321 and drives shifting block 320 to rotate, and release lever 340 is connected (referring to Fig. 7) with release wire harness 350.
On second accessory 200, be welded with a spring lifting lug 220 in addition, one end of extension spring 330 is hooked in the spring hook trough 324 at shifting block 320 tops, and the other end is hooked on spring lifting lug 220.
Referring to Fig. 3, the difference of the seat folding mechanism that the another kind of seat folding mechanism providing in figure and Fig. 2 provide is only, the first accessory 100 be two and structure identical, pawl plate 310 be also two and structure also identical, shifting block 320 is also two, the structure of two shifting blocks 320 is slightly distinguished, and wherein on a shifting block 320, is provided with spring hook trough 324, and another piece 320a is upper not to be arranged.
Seat folding mechanism shown in Fig. 3 is identical with the seat folding mechanism principle of work shown in Fig. 2.The principle of work of the utility model seat folding mechanism is described below in conjunction with Fig. 4, Fig. 5, Fig. 6 and Fig. 8:
Referring to Fig. 4, when lockup state, release wire harness 350 is in relaxed state, without application force, act on release lever 340, and extension spring 330 is in compressive state, it drives shifting block 320 to remain under lockup state, now the bottom of shifting block 320 acts on the locking protuberance 312 at pawl plate 310 tops, the lower locking arc 322 of shifting block 320 bottoms enters engagement with the upper locking arc 312a on locking protuberance 312 end faces simultaneously, pawl plate 310 is in cw deflection state, locking tooth 111 engagements on the arc surface 110 at the ratchet 315 of pawl plate 310 bottoms and the first accessory 100 tops, make between the first accessory 100 and the second accessory 200 by locking, back of seat cannot fold.
Referring to Fig. 5, during release, pull release clue 350, release clue 350 drives release lever 340 to clockwise rotate, release lever 340 drives shifting block 320 to occur to rotate along pointer by shifting block axle 321, the bottom of shifting block 320 departs from the locking protuberance 312 at pawl plate 310 tops gradually, the lower locking arc 322 of shifting block 320 bottoms also departs from engagement gradually with the upper locking arc 312a on locking protuberance 312 end faces simultaneously, when the bottom of shifting block 320 departs from the locking protuberance 312 at pawl plate 310 tops completely and encounters release protuberance 313, to drive pawl plate 310 to rotate counterclockwise by this release protuberance 313, locking tooth 111 on the arc surface 110 at the ratchet 315 of pawl plate 310 bottoms and the first accessory 100 tops departs from engagement completely, now extension spring 330 is in extended state accumulation of energy.
Referring to Fig. 6, after release completes, back of seat can turn down downwards, and when back of seat turns down downwards, two the second accessories 200 are also followed downward turnover.Under turnover state, due to the position of having staggered of the locking tooth 111 on the now ratchet 315 of pawl plate 310 bottoms and the arc surface 110 at the first accessory 100 tops, even if extension spring 330 discharges, the locking tooth 111 on the arc surface 110 at the ratchet 315 of pawl plate 310 bottoms and the first accessory 100 tops can not mesh yet.If now, by back of seat, upwards turnover is when being used state again, and extension spring 330 accumulation of energys discharge, and will drive shifting block 320 to rotate counterclockwise, and come back to the lockup state shown in Fig. 4.
Before entering lockup state, first forerunner's protuberance 323 of shifting block 320 bottoms contacts with the bottom of the depressed part 314 at pawl plate 310 tops, drive pawl plate 310 to clockwise rotate, so that the lower locking arc 322 of shifting block 320 bottoms enters engagement with the upper locking arc 312a on locking protuberance 312 end faces.
Referring to Fig. 8, the vertical sectional shape of the first accessory 100 is English alphabet R shape roughly, its bottom have a foreleg 130a and, a back leg 130, above back leg 130, offer two bolts hole 140, 150, two bolts hole 140, in 150, be installed with two bolts 141, 151, under turnover operating effort F effect, foreleg 130a can be supported on seat cushion framework 400, will act on two through bolt hole 140, 150 bolt 141, 151 shearing forces are shared a part, thereby reduce bolt 141, shearing force on 151, the bolt that working strength is lower is like this also passable, therefore reduced cost.Also can dwindle the distance between two bolts hole 140,150, reduce the height of the first accessory 100 simultaneously.
Claims (5)
1. a seat folding mechanism, comprising:
At least one the first accessory, described the first accessory is positioned at seat support bit position and on the arc surface at its top, disposes locking tooth;
At least one the second accessory, described the second accessory is positioned at seatback portion, between the top of the first accessory and the bottom of the second accessory, by the first rotating shaft, is rotatably connected;
One locking and release mechanism, described locking and release mechanism comprise:
At least one pawl plate, described pawl plate is installed in rotation on described the second accessory midway location by pawl plate axle, at the top of described pawl plate, be provided with to realize the release protuberance of unlocking function and in order to realize the locking protuberance of latch functions, and in the bottom of pawl plate, dispose ratchet, under lockup state, the ratchet of described pawl plate bottom and the engagement of the locking tooth on described the first accessory top arc face; It is characterized in that, described locking and release mechanism also comprise:
At least one shifting block, described shifting block is installed in rotation on described the second accessory midway location by shifting block axle, when lockup state, the bottom of described shifting block acts on the locking protuberance at described pawl plate top, when released state, the bottom of described shifting block acts on the release protuberance of described pawl plate;
One release lever, described release lever is fixed on described shifting block axle and by shifting block axle and drives shifting block to rotate, and described release lever is connected with release wire harness;
One extension spring, one end of described extension spring is hooked on the top of described shifting block, and the other end is hooked on described the second accessory.
2. seat folding mechanism as claimed in claim 1, it is characterized in that, top side configuration at described locking protuberance has locking arc on a section, and in the bottom of described shifting block, dispose one section of lower locking arc, when lockup state, lower locking arc and the upper locking arc on locking protuberance end face of shifting block bottom are intermeshing.
3. seat folding mechanism as claimed in claim 1, is characterized in that, at the top of described pawl plate, is provided with a depressed part, and described depressed part is between described locking protuberance and release protuberance; In the bottom of described shifting block, be also provided with forerunner's protuberance, before entering lockup state, first described forerunner's protuberance contacts with the bottom of the depressed part at described pawl plate top, drive pawl plate to clockwise rotate, so that the lower locking arc of described shifting block bottom and the upper locking arc on locking protuberance end face enter engagement.
4. seat folding mechanism as claimed in claim 1, it is characterized in that, top at described shifting block is also provided with a spring hook trough, and on described the second accessory, dispose a spring lifting lug, one end of described extension spring is hooked in the spring hook trough at described shifting block top, and the other end is hooked on described spring lifting lug.
5. the seat folding mechanism as described in claim 1 to 4 any one claim, it is characterized in that, the vertical sectional shape of described the first accessory is English alphabet R shape roughly, its bottom have a foreleg and, a back leg, above back leg, offer two bolts hole, under the effect of turnover operating effort, described foreleg can be supported on seat cushion framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191736.7U CN203805740U (en) | 2014-04-18 | 2014-04-18 | Seat folding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191736.7U CN203805740U (en) | 2014-04-18 | 2014-04-18 | Seat folding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203805740U true CN203805740U (en) | 2014-09-03 |
Family
ID=51444538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420191736.7U Expired - Lifetime CN203805740U (en) | 2014-04-18 | 2014-04-18 | Seat folding mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN203805740U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175913A (en) * | 2014-09-04 | 2014-12-03 | 江苏力乐汽车部件股份有限公司 | Trapezoidal tooth platform automobile seat folding mechanism |
| CN106314220A (en) * | 2015-06-17 | 2017-01-11 | 上汽通用五菱汽车股份有限公司 | Automobile seat folding mechanism |
| CN106740297A (en) * | 2015-11-19 | 2017-05-31 | 重庆长安汽车股份有限公司 | Motor vehicle seat back limiter |
| CN108016338A (en) * | 2017-11-29 | 2018-05-11 | 延锋安道拓座椅有限公司 | A kind of switching mechanism |
| CN108407683A (en) * | 2018-05-14 | 2018-08-17 | 江苏力乐汽车部件股份有限公司 | A kind of novel high-strength automotive seat folding device |
| CN113103933A (en) * | 2021-05-28 | 2021-07-13 | 延锋安道拓座椅有限公司 | Stable folder |
-
2014
- 2014-04-18 CN CN201420191736.7U patent/CN203805740U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175913A (en) * | 2014-09-04 | 2014-12-03 | 江苏力乐汽车部件股份有限公司 | Trapezoidal tooth platform automobile seat folding mechanism |
| CN106314220A (en) * | 2015-06-17 | 2017-01-11 | 上汽通用五菱汽车股份有限公司 | Automobile seat folding mechanism |
| CN106740297A (en) * | 2015-11-19 | 2017-05-31 | 重庆长安汽车股份有限公司 | Motor vehicle seat back limiter |
| CN108016338A (en) * | 2017-11-29 | 2018-05-11 | 延锋安道拓座椅有限公司 | A kind of switching mechanism |
| WO2019105387A1 (en) * | 2017-11-29 | 2019-06-06 | 延锋安道拓座椅有限公司 | Turnover mechanism |
| US11148569B2 (en) | 2017-11-29 | 2021-10-19 | Yanfeng Adient Seating Co. Ltd. | Turnover mechanism |
| CN108407683A (en) * | 2018-05-14 | 2018-08-17 | 江苏力乐汽车部件股份有限公司 | A kind of novel high-strength automotive seat folding device |
| WO2019218495A1 (en) * | 2018-05-14 | 2019-11-21 | 江苏力乐汽车部件股份有限公司 | Novel high-strength automobile seat folding device |
| CN113103933A (en) * | 2021-05-28 | 2021-07-13 | 延锋安道拓座椅有限公司 | Stable folder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Kang Road, Pudong New Area Kangqiao Industrial Zone of Shanghai City, No. 669, 200120 Patentee after: YANFENG ADIENT SEATING Co.,Ltd. Address before: Kang Road, Pudong New Area Kangqiao Industrial Zone of Shanghai City, No. 669, 200120 Patentee before: SHANGHAI YANFENG JOHNSON CONTROLS SEATING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: No. 669, kang'an Road, Kangqiao Industrial Zone, Pudong New Area, Shanghai 201300 Patentee after: Yanfeng international Seat System Co.,Ltd. Address before: 201315 No. 669 Kang'an Road, Kangqiao Industrial Zone, Pudong New District, Shanghai Patentee before: YANFENG ADIENT SEATING Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |