CN2907393Y - Toothed wheel type structure for stepless adjusting angle of chair - Google Patents
Toothed wheel type structure for stepless adjusting angle of chair Download PDFInfo
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- CN2907393Y CN2907393Y CN 200620096658 CN200620096658U CN2907393Y CN 2907393 Y CN2907393 Y CN 2907393Y CN 200620096658 CN200620096658 CN 200620096658 CN 200620096658 U CN200620096658 U CN 200620096658U CN 2907393 Y CN2907393 Y CN 2907393Y
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- gear
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Abstract
A gear type stepless regulating structure for seat angle, the external truss plate of the gear transmission mechanism of which is installed in the internal truss plate and between the two eccentricity exists; the outer cam of the gap digit eliminator is installed between the central boss of the internal truss plant and the inner hole of the external truss plate, while the inner cam is installed between the inner hole of the outer cam and the central boss of the internal truss plate, a spring is provided between the outer cam and the inner cam, forming an eccentric cam mechanism; the central axle of the driving mechanism is installed in the hole of the central boss of the internal truss plate, the driving block is provided between the inner cam and the outer cam. When the spring is at free state, the inner and outer cams are at wedge ramp state as to eliminate the clearance of the seat; under the effect of the moment, the driving block of the driving mechanism can overcome the spring force and eliminate the clearance and the wedge ramp effect of the mechanism to drive the gear transmission mechanism to make transmission and rotate as to reach the purpose of regulating the angle of the seat. Being compact in structure with small clearance and high strength, the utility model has strong commonality and can easily realize manual, electric and stepless regulating functions of the backrest angle of the seat.
Description
Technical field
The utility model relates to a kind of gear type adjustment structure of chair angle step-less adjustment, after linking with any type of chair back installing plate and seat support installing plate, can be used for the step-less adjustment of automotive seat or other Chair back angle.
Background technology
In the prior art, the chair angle governor motion is broadly divided into two big classes: a class is to adopt the leaf spring type governor motion of ratchet and pawl arrangement principle; Another kind of is the gear type governor motion that adopts the planetary gear transmission principle.China utility model patent specification publication number CN2358759, CN2494632, CN257768, the disclosed chair angle governor motion of CN2590784, it is the leaf spring type governor motion that adopts the ratchet and pawl arrangement principle, these four kinds of core transmission devices are because structural limitation, step-less adjustment can't be realized, also motorized adjustment can't be realized.
The gear type adjustment structure of present chair angle step-less adjustment both domestic and external mainly contains: the governor motion of engaged transmission in the governor motion of engaged transmission and the single-stage in the duplicate gear.
China utility model patent specification publication number CN2193087 and the disclosed chair angle governor motion of CN2696412 are the gear type governor motion, adopt engaged transmission in the duplicate gear, owing to there is inevitable foozle, this device can not realize that duplicate gear eliminates the gap simultaneously, thereby the backrest gap is relatively large.
Summary of the invention
Goal of the invention of the present utility model is to overcome the deficiencies in the prior art and provides a kind of and can realize manually and motorized adjustment, low cost of manufacture, the littler gear-type chair angle stepless regulation structure in backrest gap.
The utility model provides following technical solution: comprise gear drive, clearance eliminating mechanism, spring and driving mechanism.The outer tooth plate of gear drive is loaded in the internal gear and an eccentric throw is arranged, and the internal tooth of internal gear is meshed with the external tooth of outer tooth plate; The external cam of clearance eliminating mechanism is loaded between the endoporus of the central boss of internal gear and outer tooth plate, cam ring is loaded between the central boss of the endoporus of external cam and internal gear, spring is loaded in the external cam and push up mutually with cam ring and external cam respectively at two ends, forms an eccentric cam mechanism; The central shaft of driving mechanism is loaded in the hole of internal gear central boss, and the drive block of driving mechanism places cam ring and external cam.
Feature of the present utility model is that also the cam ring of described clearance eliminating mechanism has the n section tiltedly to carve face, and external cam has the corresponding with it n section that can carve mutually with it tiltedly to carve face, wherein n 〉=2.Interior and exterior cam adopts the n section tiltedly to carve face and interacts and eliminate the gap.
The spring that is characterised in that of the present utility model adopts polyurethane or spring steel wire, sheet elastomeric material to make, and makes structure small and exquisite, to reduce volume of the present utility model.
Of the present utility model being characterised in that studs with a circle plastic hoop on the driving mechanism, play a part to seal and abate the noise.
The utility model adopts the interior engaged transmission gear type adjustment structure of the single-stage of a kind of chair angle step-less adjustment that comprises gear drive, clearance eliminating mechanism, spring and driving mechanism.Gear drive adopts inside and outside gear to realize engagement Gear Planet Transmission in the single-stage; Clearance eliminating mechanism adopts inside and outside two cams, is loaded on the center of inside and outside gear, and spring is loaded in the interior and exterior cam, and interior and exterior cam is in the wedging state during free state under the effect of spring, reaches the effect of eliminating the seat gap; The drive block of driving mechanism is loaded in the interior and exterior cam, under moment loading, overcome spring force and reach the wedge action of removing clearance eliminating mechanism, and driven wheel transmission mechanism transmission, realize that inside and outside gear rotates mutually, reach the purpose of regulating chair angle, driving mechanism also can seal when realizing transmission simultaneously, this mechanism can be prevented dust preferably and possesses higher service life.The utility model can design different gusset pieces easily to be applicable to different vehicles according to user's requirement, have very strong versatility.
The utility model adopts engaged transmission gear type adjustment structure in the single-stage, provides a kind of and both can realize manual adjustments, can realize the chair angle governor motion of motorized adjustment again, and chair angle can realize step-less adjustment, thereby range of application is more extensive.Clearance eliminating mechanism of the present utility model can be realized the gap that backrest is littler, and operational torque is little, intensity is high, and it is good also to possess anufacturability, be more suitable in the advantage of the manufacturing of China, thereby manufacturing cost is lower, is fit to very much produce in batches.
Description of drawings
The embodiment that provides below in conjunction with accompanying drawing further specifies the utility model.
Fig. 1 is an assembly relation structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to schematic diagram;
Fig. 3 is the internal structure schematic diagram after the utility model assembling;
The specific embodiment
Among Fig. 1, Fig. 2, the utility model comprises gear drive, clearance eliminating mechanism, spring and driving mechanism.Gear drive adopts engagement Gear Planet Transmission in few tooth difference single gear, gear drive comprises internal gear 14 and outer tooth plate 3, outer tooth plate 14 is loaded in the internal gear 14 with certain eccentric throw, making is meshing with each other between internal tooth 7 and the external tooth 21 realizes engaged transmission in the inside and outside gear single-stage, when operating torsional interaction in driving mechanism, internal gear 14 and outer tooth plate 3 are meshing with each other and produce planetary motion, thereby angle is each other changed, and realize regulating the purpose of chair angle.
Inevitably have certain clearance owing to be meshing with each other, between the inside and outside gear of transmission, thereby can on backrest, produce corresponding gap, cause rocking of backrest, reduced the comfortableness of seat.Clearance eliminating mechanism will be eliminated above-mentioned gap, make the comfortableness of seat significantly improve.The external cam 13 of clearance eliminating mechanism of the present utility model is loaded between the endoporus 4 of the central boss 15 of internal gear 14 and outer tooth plate 3, cam ring 12 is loaded between the central boss 15 of the endoporus of external cam 13 and internal gear 14, under the elastic force effect of spring 11, three sections three sections of tiltedly carving face 5 and external cam 13 of cam ring 12 are tiltedly carved face 6 interactions, produce an active force that increases the eccentric throw of internal gear 14 and outer tooth plate 3, thereby eliminate the gap between the tooth 7,21 of inside and outside tooth plate 14,3, and then eliminate the gap of backrest.
Endoporus 4 sliding fits of external cam 13 and outer tooth plate 3, central boss 15 sliding fits of external cam 13 and cam ring 12 and internal gear 14.
Spring 11 is loaded between the interior and exterior cam 12,13, and during original state, spring 11 is in compressive state, and the elastic force of spring 11 makes the inside and outside tooth plate 14,3 of the face of tiltedly carving 5,6 wedgings of interior and exterior cam 12,13.Spring 11 can adopt polyurethane or spring steel wire, sheet elastomeric material to make.
The central shaft 10 of driving mechanism 1 is loaded in the hole of central boss 15 of internal gear 14, and drive block 18 is loaded between cam ring 12 and the external cam 13, and central shaft 10 has irregularly-shaped hole 9.Design has a circular groove 19 on the central shaft 10 of driving mechanism 1, back-up ring 17 is housed in the circular groove 19, and back-up ring 17 is stuck in the circular groove 19, in order to whole device is assembled into one, at back-up ring 17 and 14 of internal gears an elastic washer 16 is housed, in order to overcome the end play that foozle produces.Stud with a circle plastic hoop 2 on the driving mechanism 1, whole device is sealed, and can play sound deadening in use.The installing plate that has two boss 20 to be connected with seat in order to welding on two boss 8 and the outer tooth plate 3 is arranged on the internal gear 14.
Among Fig. 3, external cam 13 is an eccentric cam, external cam 13 is loaded between the endoporus 4 of the central boss 15 of internal gear 14 and outer tooth plate 3, cam ring 12 is loaded between the central boss 15 of the endoporus of external cam 13 and internal gear 14, and spring 11 is loaded in the external cam 13 and push up mutually with cam ring 12 and external cam 13 respectively at two ends.Under the elastic force effect of spring 11, three sections three sections of tiltedly carving face and external cam 13 of cam ring 12 are tiltedly carved the face interaction, produce an active force that increases the eccentric throw of internal gear 14 and outer tooth plate 3.When the operation torsional interaction is in the square hole of driving mechanism central shaft, driving mechanism can produce and rotatablely move, when being rotated counterclockwise, driving mechanism will promote cam ring 12 to eliminate wedge action, make inside and outside tooth plate 14,3 planetary motions, realize the purpose of adjusting angle, to promote external cam 13 when driving mechanism turns clockwise to eliminate wedge action, realize adjusting angle.
Claims (7)
1, a kind of gear-type chair angle stepless regulation structure, comprise gear drive and driving mechanism, it is characterized in that: the outer tooth plate (3) of gear drive is loaded in the internal gear (14) and an eccentric throw is arranged, and the internal tooth (7) of internal gear (14) is meshed with the external tooth (21) of outer tooth plate (3); The external cam of clearance eliminating mechanism (13) is loaded between the endoporus (4) of the central boss (15) of internal gear (14) and outer tooth plate (3), cam ring (12) is loaded between the central boss (15) of the endoporus of external cam (13) and internal gear (14), spring (11) is loaded in the external cam (13) and push up mutually with cam ring (12) and external cam (13) respectively at two ends, forms an eccentric cam mechanism; The central shaft (10) of driving mechanism (1) is loaded in the hole of central boss (15) of internal gear (14), and the drive block (18) of driving mechanism (1) places cam ring (12) and external cam (13).
2, gear-type chair angle stepless regulation structure according to claim 1 is characterized in that: described gear drive is engagement epicyclic transmission mechanism in few tooth difference single gear.
3, gear-type chair angle stepless regulation structure according to claim 1 is characterized in that: spring (11) is polyurethane or spring steel wire, sheet elastomeric material.
4, gear-type chair angle stepless regulation structure according to claim 1, it is characterized in that: the cam ring of described clearance eliminating mechanism (12) has the n section tiltedly to carve face (5), external cam (13) has the corresponding with it n section that can carve mutually with it tiltedly to carve face (6), wherein n 〉=2.
5, gear-type chair angle stepless regulation structure according to claim 1, it is characterized in that: endoporus (4) sliding fit of external cam (13) and outer tooth plate (3), central boss (15) sliding fit of external cam (13) and cam ring (12) and internal gear (14).
6, gear-type chair angle stepless regulation structure according to claim 1, it is characterized in that: on the central shaft (10) of driving mechanism (1) circular groove (19) is arranged, the back-up ring (17) that is used for fixing when whole device is assembled into one is housed in the circular groove (19), between back-up ring (17) and internal gear (14), an elastic washer (16) is housed.
7, gear-type chair angle stepless regulation structure according to claim 1 is characterized in that: stud with the plastic hoop (2) that a circle seals to whole device on the driving mechanism (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096658 CN2907393Y (en) | 2006-05-11 | 2006-05-11 | Toothed wheel type structure for stepless adjusting angle of chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096658 CN2907393Y (en) | 2006-05-11 | 2006-05-11 | Toothed wheel type structure for stepless adjusting angle of chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2907393Y true CN2907393Y (en) | 2007-06-06 |
Family
ID=38126606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620096658 Expired - Lifetime CN2907393Y (en) | 2006-05-11 | 2006-05-11 | Toothed wheel type structure for stepless adjusting angle of chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2907393Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011003288A1 (en) * | 2009-07-04 | 2011-01-13 | 湖北中航精机科技股份有限公司 | Seat recliner and seat having the same |
| CN101070055B (en) * | 2006-05-11 | 2011-06-08 | 湖北中航精机科技股份有限公司 | Gear-type chair angle stepless regulation structure |
| CN105361490A (en) * | 2015-11-26 | 2016-03-02 | 王本 | Angle-adjustable chair |
-
2006
- 2006-05-11 CN CN 200620096658 patent/CN2907393Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070055B (en) * | 2006-05-11 | 2011-06-08 | 湖北中航精机科技股份有限公司 | Gear-type chair angle stepless regulation structure |
| WO2011003288A1 (en) * | 2009-07-04 | 2011-01-13 | 湖北中航精机科技股份有限公司 | Seat recliner and seat having the same |
| JP2012503504A (en) * | 2009-07-04 | 2012-02-09 | 湖北中航精机科技股▲ふん▼有限公司 | Sheet angle adjuster and sheet having this angle adjuster |
| CN101941389B (en) * | 2009-07-04 | 2012-06-20 | 湖北中航精机科技股份有限公司 | Seat angle adjuster and seat with angle adjuster |
| US8590972B2 (en) | 2009-07-04 | 2013-11-26 | Hubei Aviation Precision Machinery Technology Co., Ltd. | Seat recliner and seat having the same |
| CN105361490A (en) * | 2015-11-26 | 2016-03-02 | 王本 | Angle-adjustable chair |
| CN105361490B (en) * | 2015-11-26 | 2018-04-03 | 王本 | A kind of seat of angle adjustable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20070606 Effective date of abandoning: 20110608 |