CN1498567A - Kernel transmission gear of angle adjuster in seat - Google Patents
Kernel transmission gear of angle adjuster in seat Download PDFInfo
- Publication number
- CN1498567A CN1498567A CNA02139265XA CN02139265A CN1498567A CN 1498567 A CN1498567 A CN 1498567A CN A02139265X A CNA02139265X A CN A02139265XA CN 02139265 A CN02139265 A CN 02139265A CN 1498567 A CN1498567 A CN 1498567A
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- ratchet
- slide block
- cam
- coulisse
- moving spring
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Abstract
A central drive unit for the angle regulator of chair is composed of a ratchet gear mechanism, a cam mechanism and a restoration spring. Two slide segments of ratchet gear and detent are symmetrically arranged in the ratchet gear. The cam and two slide blocks are installed in slideway. The external side of said slide block has the detent engaged with said ratchet gear, and its internal side has a shaped recess consisitng of a self-lock surface and a self-lock hook of slide block. Said cam has the correspondent self-lock surface and flange. When the slide block moves to the most external position, the ratchets of ratchet gear and slide block are engaged to realize the self lock. If they are unlocked, the angle of chair can be regulated.
Description
Technical field
The present invention relates to the core transmission component of a kind of leaf spring type chair angle adjusting and backrest folders.After linking with any type of chair back installing plate and seat support installing plate, can be used for the angular adjustment of automotive seat or other Chair back and folding.
Background technology
Chinese patent ZL99237062.0 and ZL01250171.9 have announced two kinds of leaf spring type seat angle adjustment core transmission devices, though these two kinds of core transmission devices have intensity height, highly versatile, the gap is little and advantage such as non-maintaining.But because structural limitation, these two kinds of core transmission devices can't be realized the folding of backrest when realizing the angular adjustment of backrest, and structure is comparatively complicated.
Summary of the invention
The invention solves the deficiency that prior art exists, provide a kind of and both can realize angular adjustment, can realize backrest folds, more succinct, the more reliable seat angle adjustment core of the fixed form transmission device of structure again.
Technical scheme of the present invention is formed seat angle adjustment core transmission device by ratchet mechanism, cam mechanism, back-moving spring, coulisse and with the sheath that these parts are linked together.Ratchet mechanism is made up of ratchet and slide block, cam mechanism is made up of turning cylinder and the cam that is fixed in turning cylinder, turning cylinder is contained in coulisse centre bore and the ratchet centre bore, it is characterized in that: two steps are arranged in the ratchet, the small stair inner chamber has back-moving spring, in the big step symmetrically arranged two sections ratchet ratchets and ratchet coasting-flight phase are arranged: cam and two slide blocks are contained in the corresponding chute of coulisse, there is the slide block ratchet that can be meshed with the ratchet ratchet in the slide block outside, the slide block inboard by by one section slide block from locking face and the profiled slot that the slide block latch nook is formed, corresponding with it cam is arranged from locking face and cam beak on the cam, slide block, cam two parts are coordinated mutually, the locking and the release of common adjusting slider and ratchet.When cam promotion slide block slided to outermost position, the slide block ratchet was meshed with the ratchet ratchet, and cam forms self-locking from locking face and slide block from locking face, and the core transmission device is in lockup state; When cam retracted slide block slide block ratchet and hook tooth are thrown off, the core transmission device was in released state, can carry out chair angle and regulate; When the ratchet coasting-flight phase was relative with the slide block ratchet, ratchet can freely rotate relative to coulisse, realized the fast folding of backrest.
Feature of the present invention also is: cam is from the curve lift angle a of locking face≤5 °, to guarantee the reliable self-locking of transmission device.
Feature of the present invention also is: the ratchet number of ratchet is the integral multiple of slide block quantity.
Compared with prior art, slide block of the present invention, cam two parts are coordinated mutually, and the locking and the release of common adjusting slider and ratchet just can realize the dual-use function of self-locking and release with a cam, have effectively reduced the thickness of core transmission device; By sheath parts of the present invention are connected firmly together, save a circle steel ball; The setting of two sections ratchet coasting-flight phases on the ratchet can realize the fast folding of backrest, and its manufacturing cost descends, and structure is more succinct, and fixed form is more reliable.Also have highly versatile, compact conformation, volume is little, intensity is high, good, the degree of regulation advantages of higher of bilateral release performance.
Below in conjunction with accompanying drawing the present invention is described in further detail:
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 is the right view of Fig. 1; Schematic diagram when Fig. 3 is cam and slide block self-locking; Fig. 4 is the right view of Fig. 3.
The specific embodiment
Among Fig. 1, two steps are arranged in the ratchet 2, the small stair inner chamber is placed with back-moving spring 11, in the big step symmetrically arranged two sections ratchet ratchets 13 and ratchet coasting-flight phase 22 is arranged.Cam 5 and two slide blocks 4 are contained in the coulisse 3 corresponding chutes 10, and cam 5 is used for controlling slide block 4 translation in chute 10.There is the slide block ratchet 12 that can be meshed with ratchet ratchet 13 in slide block 4 outsides, slide block 4 inboards have by one section slide block from locking face 14 and the profiled slot that slide block latch nook 17 constitutes, corresponding with it cam is arranged from locking face 15 and cam beak 16 on the cam 5, during self-locking, cam pushes up from locking face 14 with slide block mutually from locking face 15.Cam is 5 ° from the curve lift angle of locking face, can guarantee that the transmission device self-locking is reliable.When ratchet ratchet 13 relative with slide block ratchet 12, simultaneously slide block 4 when outermost position, slide block ratchet 12 and 13 engagements of ratchet ratchet, on the contrary throw off; When ratchet coasting-flight phase 22 and slide block ratchet 12 were relative, ratchet 2 can freely rotate relative to coulisse 3, realizes the fast folding of backrest.Spiral type back-moving spring 11 its outer hooks 19 are inserted in the aperture 18 of coulisse 3, interior hook 21 is inserted in the cam aperture 20,23 armfuls of back-moving spring inner rings are stuck on the flat step of turning cylinder 7, spiral type back-moving spring 11 adds force direction makes slide block 4 and ratchet 2 that the trend of an engagement be arranged all the time, guarantee under no external force effect situation, can rely on the elastic force driving cam 5 of back-moving spring 11 to rotate, thereby drive slide block 4 to moving away from coulisse 3 center positions, the ratchet 12 of two slide blocks 4 and the ratchet 13 of ratchet 2 are meshed simultaneously, and adjuster is in self-locking state.The number of teeth of ratchet 2 is 180 teeth, and the per tooth regulated quantity is 2 °, tooth depth 0.65mm.4 welding boss are arranged on the ratchet 2, can connect, 4 welding boss 6 are also arranged on the coulisse 3, be used for connecing with the corresponding eyelet welding of seat support gusset piece with the corresponding eyelet welding of chair back gusset piece.1 is sheath.
Among Fig. 2, turning cylinder 7, cam 5 are integral by riveted and fixed, and turning cylinder 7 two ends are contained in respectively in coulisse 3 centre bores and ratchet 2 centre bores.8 is the flat step of turning cylinder 7.4 welding boss 9 are arranged on the ratchet 2.Step of step sheath 1 and coulisse 3 cylindrical matched in clearance, the cylindrical matched in clearance of another step and ratchet 2, sheath 1 is linked together and makes it to become an organic whole by closing up with each part.
Among Fig. 3,14 be slide block 4 from locking face, with it corresponding cam is arranged from locking face 15 on the cam 5, slide block latch nook 17 is arranged on the slide block 4, corresponding with it cam beak 16 is arranged on the cam 5.When turning cylinder 7 clockwise directions rotate, the cam of cam 5 pushes up from locking face 14 with slide block on the slide block 4 mutually from locking face 15, promote simultaneously slide block 4 outwards motion make slide block ratchet 12 and ratchet ratchet engagement, after meshing fully to tooth, two from the locking face self-locking, and backrest angle is locked at this state.When turning cylinder 7 counterclockwise rotated, cam beak 16 push up mutually with slide block latch nook 17, and slide block 4 is pulled to the center position of coulisse, made slide block ratchet 12 and the disengagement of ratchet ratchet, the adjusting of realization backrest angle.20 is the cam aperture.
Among Fig. 4, arrow is depicted as the force direction that is subjected to of slide block 4, and suffered two power up and down of slide block 4 can prevent that on same plane limited slip block 4 owing to bearing additional torque the side direction flop phenomenon takes place.5 is cam.
Claims (5)
1, a kind of seat angle adjustment core transmission device, comprise ratchet mechanism, cam mechanism, back-moving spring (11), coulisse (3) and the sheath (1) that these parts are linked together, ratchet mechanism is made up of ratchet (2) and slide block (4), cam mechanism is made up of turning cylinder (7) and the cam (5) that is fixed in turning cylinder (7), turning cylinder (7) is contained in coulisse (3) centre bore and ratchet (2) centre bore, it is characterized in that: two steps are arranged in the ratchet (2), the small stair inner chamber has back-moving spring (11), in the big step symmetrically arranged two sections ratchet ratchets (13) and ratchet coasting-flight phase (22) is arranged; Cam (5) and two slide blocks (4) are contained in the corresponding chute (10) of coulisse (3), there is the slide block ratchet (12) that can be meshed with ratchet ratchet (13) in slide block (4) outside, there is the profiled slot of being made up of from locking face and a slide block latch nook (17) one section slide block slide block (4) inboard, corresponding with it cam is arranged from locking face (15) and cam beak (16) on the cam (5), slide block (4) slides to outermost position slide block ratchet (12) and is meshed with ratchet ratchet (13), cam forms anti-self-locking from locking face (15) and slide block from locking face (14), otherwise throws off release.
2, transmission device according to claim 1 is characterized in that: cam is from the curve lift angle a of locking face (15)≤5 °.
3, transmission device according to claim 1 is characterized in that its number of teeth of ratchet (2) is the integral multiple of slide block (4) quantity.
4, transmission device according to claim 1, it is characterized in that said back-moving spring (11) makes slide block (4) and ratchet (2) that the spiral type spring of an engagement trend be arranged all the time for it adds force direction, the outer hook of back-moving spring (11) (19) is inserted in the aperture (18) of coulisse (3), back-moving spring inner ring (23) is embraced and is stuck on the flat step (8) of turning cylinder (7), and hook (21) is inserted in the cam aperture (20) in the back-moving spring.
5, transmission device according to claim 1 is characterized in that sheath (1) is the step sheath, an one step and coulisse (3) cylindrical matched in clearance, the cylindrical matched in clearance of another step and ratchet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02139265XA CN100486481C (en) | 2002-11-09 | 2002-11-09 | Kernel transmission gear of angle adjuster in seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02139265XA CN100486481C (en) | 2002-11-09 | 2002-11-09 | Kernel transmission gear of angle adjuster in seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1498567A true CN1498567A (en) | 2004-05-26 |
| CN100486481C CN100486481C (en) | 2009-05-13 |
Family
ID=34231794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02139265XA Expired - Lifetime CN100486481C (en) | 2002-11-09 | 2002-11-09 | Kernel transmission gear of angle adjuster in seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100486481C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299946B (en) * | 2005-09-26 | 2010-05-19 | 丰田纺织株式会社 | Rotation lock device |
| CN101677689B (en) * | 2007-05-08 | 2011-05-11 | 丰田纺织株式会社 | Connection device |
| CN101450634B (en) * | 2007-12-03 | 2011-06-22 | 李尔公司 | Heavy duty reclining mechanism for vehicle seats |
| CN102145663A (en) * | 2011-01-27 | 2011-08-10 | 湖北中航精机科技股份有限公司 | Angle adjusting device for seat, self-locking mechanism thereof and seat with angle adjusting device |
| CN102258287A (en) * | 2010-05-26 | 2011-11-30 | 向阳技研株式会社 | Angle-adjustable hinge |
| CN101407188B (en) * | 2007-10-12 | 2012-01-11 | 湖北中航精机科技股份有限公司 | Folding and self-locking apparatus of chair backrest |
| CN102826023A (en) * | 2012-08-17 | 2012-12-19 | 宁波双林汽车部件股份有限公司 | Manual automobile-seat back angle adjuster capable of adjusting angle continuously and folding seat back quickly |
| CN111204263A (en) * | 2018-11-22 | 2020-05-29 | 李尔公司 | Seat back adjustment system |
| CN114098282A (en) * | 2021-11-10 | 2022-03-01 | 苏世博（南京）减振系统有限公司 | One-way locking mechanism and desk applying same |
-
2002
- 2002-11-09 CN CNB02139265XA patent/CN100486481C/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299946B (en) * | 2005-09-26 | 2010-05-19 | 丰田纺织株式会社 | Rotation lock device |
| CN101677689B (en) * | 2007-05-08 | 2011-05-11 | 丰田纺织株式会社 | Connection device |
| CN101407188B (en) * | 2007-10-12 | 2012-01-11 | 湖北中航精机科技股份有限公司 | Folding and self-locking apparatus of chair backrest |
| CN101450634B (en) * | 2007-12-03 | 2011-06-22 | 李尔公司 | Heavy duty reclining mechanism for vehicle seats |
| CN102258287B (en) * | 2010-05-26 | 2016-07-06 | 向阳技研株式会社 | Angle-adjustable hinge |
| CN102258287A (en) * | 2010-05-26 | 2011-11-30 | 向阳技研株式会社 | Angle-adjustable hinge |
| CN102145663B (en) * | 2011-01-27 | 2012-09-05 | 湖北中航精机科技股份有限公司 | Angle adjusting device for seat, self-locking mechanism thereof and seat with angle adjusting device |
| CN102145663A (en) * | 2011-01-27 | 2011-08-10 | 湖北中航精机科技股份有限公司 | Angle adjusting device for seat, self-locking mechanism thereof and seat with angle adjusting device |
| CN102826023A (en) * | 2012-08-17 | 2012-12-19 | 宁波双林汽车部件股份有限公司 | Manual automobile-seat back angle adjuster capable of adjusting angle continuously and folding seat back quickly |
| CN111204263A (en) * | 2018-11-22 | 2020-05-29 | 李尔公司 | Seat back adjustment system |
| US11254243B2 (en) | 2018-11-22 | 2022-02-22 | Lear Corporation | Seat-back adjustment system |
| CN111204263B (en) * | 2018-11-22 | 2022-08-16 | 李尔公司 | Seat back adjustment system |
| CN114098282A (en) * | 2021-11-10 | 2022-03-01 | 苏世博（南京）减振系统有限公司 | One-way locking mechanism and desk applying same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100486481C (en) | 2009-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: CNAC SEIKI HUBEI SCIENCE & TECHNOLOY CO., LTD. Free format text: FORMER OWNER: ZHONGHANG LIFE-SAVING SCIENCE + TECHNOLOGY CO., LTD., HUBEI Effective date: 20040625 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20040625 Address after: Aviation science and Technology Industrial Zone, Jiangshan South Road, Xiangfan hi tech Zone, Hubei Applicant after: HUBEI AVIATION PRECISION MACHINERY TECHNOLOGY Co.,Ltd. Address before: Aviation science and Technology Industrial Zone, Jiangshan South Road, Xiangfan hi tech Zone, Hubei Applicant before: Zhonghang Life saving Science & Technology Co.,Ltd. Hubei |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUBEI AVIATION PRECISION MACHINERY TECHNOLOGY CO., Free format text: FORMER OWNER: ZHONGHANG PRECISIVE MACHINARY SCIENCE AND TECHNOLOGY CO., LTD., HUBEI Effective date: 20130619 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130619 Address after: 441003 Hubei city of Xiangfan province high tech Zone, Road No. 8 Patentee after: HUBEI AVIATION PRECISION MACHINERY TECHNOLOGY Co.,Ltd. Address before: 441003 aviation science and Technology Industrial Zone, Jiangshan South Road, Xiangfan hi tech Zone, Hubei Patentee before: HUBEI AVIATION PRECISION MACHINERY TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20090513 |
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| CX01 | Expiry of patent term |