CN201856668U - Angle adjusting device and structure of automobile seat backrest - Google Patents
Angle adjusting device and structure of automobile seat backrest Download PDFInfo
- Publication number
- CN201856668U CN201856668U CN2010205089841U CN201020508984U CN201856668U CN 201856668 U CN201856668 U CN 201856668U CN 2010205089841 U CN2010205089841 U CN 2010205089841U CN 201020508984 U CN201020508984 U CN 201020508984U CN 201856668 U CN201856668 U CN 201856668U
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- China
- Prior art keywords
- cam
- motor vehicle
- vehicle seat
- seat back
- back angle
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- 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.)
- Expired - Lifetime
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Seats For Vehicles (AREA)
Abstract
The utility model discloses an angle adjusting device of an automobile seat backrest, which comprises an internal gear, wherein an accommodating chamber is formed in the internal gear, the inner wall of the accommodating chamber is provided with uniformly and alternately distributed internal teeth and steps, the center of the accommodating chamber is provided with a cam, the cam is coaxially and fixedly connected with a central shaft, the periphery surface of the cam is provided with a two-way cam curve, locking toothed plates is arranged between the cam and the inner wall of the internal gear, one end of each locking toothed plate is provided with external teeth, the external teeth are meshed with the internal teeth, the other end of each locking toothed plate is provided with a toothed plate curve, and the toothed plate curve is matched with the two-way cam curve on the periphery surface of the cam to form a two-way movement and two-point support structure. The angle adjusting device has the advantages of reliable locking, small radial self gap and high impact strength, can realize quick overturn of the backrest, is conductive to the extension deformation of products, has high universalization degree of parts, and meets different requirements of customers on seat angle adjustment, and the manufacturing cost is reduced.
Description
Technical field
The utility model relates to motor vehicle seat back, the angle regulator of using on particularly a kind of motor vehicle seat back and adopt a kind of adjustment structure of this control apparatus.
Background technology
It is more comfortable when people are ridden, the angle of at present a lot of motor vehicle seat backs all is adjustable, more different novel regulating mechanism has appearred in motor vehicle seat back angle adjusting mechanism both at home and abroad at present, but also exist in varying degrees intensity utilize insufficient, locking is unstable, synchronism is relatively poor, radially from gapped big, shock resistance is poor, and structure is than shortcomings such as complexity.And existing like product is when changing flip angle, and the cost that needs is higher, and a lot of parts can not be general, and the universal component degree is corresponding lower.
The utility model content
At above-mentioned the deficiencies in the prior art, the technical problems to be solved in the utility model provides a kind of simple in structure, easy to operate, motor vehicle seat back angle regulator that synchronism is good.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of motor vehicle seat back angle regulator, it comprises an inner gear, form a container cavity in the described inner gear, the inwall of described container cavity is provided with and evenly is alternately distributed internal tooth and step, the center of described container cavity is provided with a cam, described cam is captiveed joint with a spigot shaft coaxle, the outer peripheral face of described cam is provided with the bidirectional cam curve, be provided with the locking tooth plate between described cam and the described inner gear inwall, one end of described locking tooth plate is provided with external tooth, described external tooth and described internal gearing, the other end of described locking tooth plate is provided with the tooth plate curve, and described tooth plate curve matches with bidirectional cam curve on the described cam outer peripheral face and forms bidirectional-movement and two point supporting construction.
Preferably, also comprise a permanent seat, described inner gear is positioned on the described permanent seat, and described permanent seat and described inner gear are clipped in the middle described locking tooth plate, and described permanent seat is connected by anchor ear with described inner gear.
Preferably, described cam also is connected with a locking spring.
Preferably, described locking spring is a whirlpool spring, and described cam is provided with a cam pin, and described whirlpool spring housing is on described center shaft, and an end of described whirlpool spring is connected with described permanent seat, and the other end of described whirlpool spring is connected with described cam pin.
Preferably, described bidirectional cam curve comprises the first propelling curve successively, returns the curve and the second propelling curve.
Preferably, respectively be provided with three described internal tooths and step on the inwall of described inner gear, it is corresponding with described three internal tooths respectively to be provided with three locking tooth plates between the inwall of inner gear and the cam, and it is corresponding with described three locking tooth plates respectively that described cam is provided with three bidirectional cam curves.
Described container cavity is stepped, and described internal tooth, step are positioned on the outer ring inwall of described stepped container cavity.
Such scheme has following beneficial effect: this motor vehicle seat back angle regulator passes through rotary middle spindle, cam driven locking tooth plate is rotated, make locking tooth plate and inner gear jump out of mesh and on step, slide, can make like this with inner gear bonded assembly back of seat and rotate with inner gear, realize the adjusting of backrest angle, when backrest turns to the required angle of passenger, make the center shaft backward rotation, locking tooth plate and inner gear are meshed again, and inner gear is by locking.Use this angle regulator can not only realize the reliability of locking, also help and reduce, improve impact strength radially from gapped.By the step dimension on the containing cavity inwall on the control inner gear regulate locking tooth plate and inner gear engageable with can not the ingear scope, realize the quick turnover of backrest, the extension modification that helps product, part universalization degree height, satisfy the different seat adjustment angles that require of client, reduce manufacturing cost.
The invention also discloses a kind of motor vehicle seat back angle adjustment mechanism that adopts above-mentioned angle regulator, its by the following technical solutions:
A kind of motor vehicle seat back angle adjustment mechanism, it comprises above-mentioned motor vehicle seat back angle regulator, the center shaft of two motor vehicle seat back angle regulators connects by a gangbar, and the center shaft of one of them motor vehicle seat back angle regulator also is connected with a release lever.
Preferably, the center shaft of a motor vehicle seat back angle regulator is that spline is connected with described gangbar, the center shaft of another motor vehicle seat back angle regulator and the welding of described gangbar.
Preferably, described spline is criss-cross spline or polygon spline.
Above-mentioned motor vehicle seat back angle adjustment mechanism drives two back of seat angle regulator actions by pulling the release lever of captiveing joint with center shaft, realize the adjusting of backrest angle, make synchronism more perfect by eliminating the synchronizing unlocking gap, improve the overall performance of seat, and adopted this structure also more convenient when mounted.
Description of drawings
Fig. 1 is the front view of the utility model motor vehicle seat back angle regulator.
Fig. 2 is the lateral plan of the utility model motor vehicle seat back angle regulator.
Fig. 3～Fig. 8 is each design of part scheme drawing of the utility model motor vehicle seat back angle regulator, and wherein Fig. 3 is that permanent seat, Fig. 4 are that anchor ear, Fig. 5 are that locking spring, Fig. 6 are that cam, Fig. 7 are that inner gear, Fig. 8 are the locking tooth plate.
Fig. 9 is the scheme drawing of the utility model motor vehicle seat back angle adjustment mechanism.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail.
Shown in Fig. 1 to 8, this motor vehicle seat back angle regulator comprises an inner gear 3, form a container cavity 32 in the inner gear 3, container cavity 32 is stepped, on these stair-stepping container cavity 32 outer ring inwalls, be respectively equipped with three internal tooths 31 and three steps 33, internal tooth 31 and step 33 evenly are alternately distributed, the center of container cavity 32 is provided with a cam 5, cam 5 is captiveed joint with a center shaft 2 is coaxial, be provided with three locking tooth plates 4 between the inwall of cam 5 and inner gear 3, three locking tooth plates 4 are corresponding with three internal tooth 31 positions respectively, one end of locking tooth plate 4 is provided with external tooth 41, external tooth 41 is meshed with corresponding internal tooth 31, and the other end of locking tooth plate 4 is provided with the tooth plate curve.The integral body of cam 5 can be set to triangle, on three angles of cam 5 the bidirectional cam curve is set respectively.Tooth plate curve on three locking tooth plates 4 is corresponding one by one with three bidirectional cam curves respectively, and the tooth plate curve matches with the bidirectional cam curve and forms bidirectional-movement and two point supporting construction.This bidirectional cam curve comprises the first propelling curve 51 successively, returns the curve 52 and the second propelling curve 53.
The angle (0.4-0.7mm) of collapsing of three steps 33 on the stepped containing cavity 32 outer ring inwalls of inner gear 3, the one side of three locking tooth plate 4 external tooths 41 angle (0.4-0.7mm) of collapsing, like this when back of seat is carried out upset fast, external tooth 41 non-collapse tooth top place, angle and step 33 frictions, reach quick turn over function, but do not destroy the edged surface profile of tooth of collapsing, elongation center's part service life.
Back of seat is connected with the inner gear 3 of above-mentioned motor vehicle seat back angle regulator, can realize the adjusting of back of seat angle, this motor vehicle seat back angle regulator in use, by external force center shaft 2 is rotated, and then make cam 5 advance curve 51 along first, second advances curve 53 to promote three locking tooth plates 4 rotates, and then make the external tooth of locking tooth plate 4 and internal tooth 31 jump out of meshs of inner gear 3, when the external tooth 41 of three locking tooth plates 4 contacts with step 33, external tooth 41 can slide on step 33, rotate with inner gear with inner gear 3 bonded assembly back of seats like this, realize the adjusting of back of seat angle.When back of seat turns to the required angle of passenger, unclamp the external force on the center shaft 2, center shaft 2 backward rotation under the effect of locking spring 6, make the external tooth 41 on the locking tooth plate 4 break away from step 33, along return curve 52 and cam meshing close with inner gear 3 on internal tooth 31 mesh again, inner gear 3 is just by locking like this.When the maximum angle that needs the adjustment seat chair back to turn down, can change the width of step 33, the width of step 33 is wide more, and the angle that seat can turn down is big more.
Use this angle regulator can not only realize the reliability of locking, also help and reduce, improve impact strength radially from gapped.By the step dimension on the containing cavity inwall on the control inner gear regulate locking tooth plate and inner gear engageable with can not the ingear scope, realize the quick turnover of backrest, the extension modification that helps product, part universalization degree height, satisfy the different seat adjustment angles that require of client, reduce manufacturing cost.
As shown in Figure 9, the invention also discloses a kind of motor vehicle seat back angle adjustment mechanism that adopts above-mentioned angle regulator, it comprises two above-mentioned motor vehicle seat back angle regulators, and the inner gear 3 of two angle regulators is connected with the back of seat two ends respectively.The center shaft 2 of two motor vehicle seat back angle regulators connects by a hollow gangbar 8, the center shaft 2 of one of them motor vehicle seat back angle regulator is connected for spline with gangbar 8, spline can be criss-cross spline or polygon spline, the center shaft 2 of another motor vehicle seat back angle regulator and gangbar 8 welding, the other end of this center shaft 2 also is connected with a release lever 7.Release lever 7 also can be connected on another center shaft.
Above-mentioned motor vehicle seat back angle adjustment mechanism drives two back of seat angle regulator actions by pulling the release lever of captiveing joint with center shaft, realize the adjusting of backrest angle, make synchronism more perfect by eliminating the synchronizing unlocking gap, improve the overall performance of seat, and adopted this structure also more convenient when mounted.
More than motor vehicle seat back angle regulator and structure that the utility model embodiment is provided be described in detail; for one of ordinary skill in the art; thought according to the utility model embodiment; part in specific embodiments and applications all can change; in sum; this description should not be construed as restriction of the present utility model, and all any changes of being made according to the utility model design philosophy are all within protection domain of the present utility model.
Claims (10)
1. motor vehicle seat back angle regulator, it is characterized in that: it comprises an inner gear (3), form a container cavity (32) in the described inner gear, the inwall of described container cavity (32) is provided with and evenly is alternately distributed internal tooth (31) and step (33), the center of described container cavity (32) is provided with a cam (5), described cam (5) is captiveed joint with a center shaft (2) is coaxial, the outer peripheral face of described cam (5) is provided with the bidirectional cam curve, be provided with locking tooth plate (4) between described cam (5) and described inner gear (3) inwall, one end of described locking tooth plate is provided with external tooth (41), described external tooth (41) and described internal tooth (31) engagement, the other end of described locking tooth plate (4) is provided with the tooth plate curve, and described tooth plate curve matches with bidirectional cam curve on described cam (5) outer peripheral face and forms bidirectional-movement and two point supporting construction.
2. motor vehicle seat back angle regulator according to claim 1, it is characterized in that: also comprise a permanent seat (1), described inner gear (3) is positioned on the described permanent seat (1), described permanent seat (1) is clipped in the middle described locking tooth plate (4) with described inner gear (3), and described permanent seat (1) is connected by anchor ear (9) with described inner gear (3).
3. motor vehicle seat back angle regulator according to claim 2 is characterized in that: described cam (5) also is connected with a locking spring (6).
4. motor vehicle seat back angle regulator according to claim 3, it is characterized in that: described locking spring (6) is a whirlpool spring, described cam (5) is provided with a cam pin (54), described whirlpool spring housing is on described center shaft (2), one end of described whirlpool spring is connected with described permanent seat (1), and the other end of described whirlpool spring is connected with described cam pin (54).
5. motor vehicle seat back angle regulator according to claim 1 is characterized in that: described bidirectional cam curve comprises the first propelling curve (51) successively, returns the curve (52) and the second propelling curve (53).
6. motor vehicle seat back angle regulator according to claim 1, it is characterized in that: respectively be provided with three described internal tooths (31) and step (33) on the inwall of described inner gear (3), it is corresponding with described three internal tooths (31) respectively to be provided with three locking tooth plates (4) between the inwall of inner gear (3) and the cam (5), and it is corresponding with described three locking tooth plates (4) respectively that described cam (5) is provided with three bidirectional cam curves.
7. motor vehicle seat back angle regulator according to claim 1 is characterized in that: described container cavity (32) is stepped, and described internal tooth (31), step (33) are positioned on the outer ring inwall of described stepped container cavity (32).
8. motor vehicle seat back angle adjustment mechanism, it is characterized in that: it comprises two described motor vehicle seat back angle regulators of claim 1 to 7, the center shaft of two motor vehicle seat back angle regulators (2) connects by a gangbar (8), and the center shaft of one of them motor vehicle seat back angle regulator (2) also is connected with a release lever (7).
9. motor vehicle seat back angle adjustment mechanism according to claim 8, it is characterized in that: the center shaft of a motor vehicle seat back angle regulator (2) and described gangbar (8) be for spline is connected, center shaft of another motor vehicle seat back angle regulator (2) and described gangbar (8) welding.
10. motor vehicle seat back angle adjustment mechanism according to claim 9 is characterized in that: described spline is criss-cross spline or polygon spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205089841U CN201856668U (en) | 2010-08-26 | 2010-08-26 | Angle adjusting device and structure of automobile seat backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205089841U CN201856668U (en) | 2010-08-26 | 2010-08-26 | Angle adjusting device and structure of automobile seat backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201856668U true CN201856668U (en) | 2011-06-08 |
Family
ID=44102484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205089841U Expired - Lifetime CN201856668U (en) | 2010-08-26 | 2010-08-26 | Angle adjusting device and structure of automobile seat backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201856668U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480492A (en) * | 2018-12-26 | 2019-03-19 | 侯潇莹 | It is a kind of with the student's household desk and chair to correct sitting posture |
| CN111546960A (en) * | 2020-06-10 | 2020-08-18 | 无锡全盛安仁机械有限公司 | Discontinuous angle regulator device capable of reducing gap |
-
2010
- 2010-08-26 CN CN2010205089841U patent/CN201856668U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480492A (en) * | 2018-12-26 | 2019-03-19 | 侯潇莹 | It is a kind of with the student's household desk and chair to correct sitting posture |
| CN111546960A (en) * | 2020-06-10 | 2020-08-18 | 无锡全盛安仁机械有限公司 | Discontinuous angle regulator device capable of reducing gap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |