CN103625318A - Adjustable chair and angle adjusting device thereof - Google Patents
Adjustable chair and angle adjusting device thereof Download PDFInfo
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- CN103625318A CN103625318A CN201310692777.4A CN201310692777A CN103625318A CN 103625318 A CN103625318 A CN 103625318A CN 201310692777 A CN201310692777 A CN 201310692777A CN 103625318 A CN103625318 A CN 103625318A
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- housing
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Abstract
The invention discloses an angle adjusting device applicable to an adjustable chair. The angle adjusting device comprises an angle adjusting mechanism, a self-locking mechanism and an axial location element which is used for realizing axial location of the self-locking mechanism, wherein a plurality of bosses are arranged on one side, facing the self-locking mechanism, of an inner toothed plate of the angle adjusting mechanism; grooves matched with the bosses are formed in the periphery of a shell of the self-locking mechanism and are in clearance fit with the bosses; a minimum distance between the bottoms of two grooves which are symmetrical relative to an axis center of the shell is less than a minimum distance between the corresponding bosses; one end of the axial location element is fixed on the angle adjusting mechanism, and the other end of the axial location element is axially fixed on the shell and movably mounted on the shell in a radial direction, so that the movement interference between wedge blocks and the shell can be avoided, and the function stability of the angle adjusting device can be improved. The invention also discloses an adjustable chair with the angle adjusting device.
Description
Technical field
The present invention relates to chair angle regulation technology field, particularly a kind of angle regulator for barbed chair.The invention still further relates to a kind of barbed chair that comprises above-mentioned angle regulator.
Background technology
In order to strengthen the traveling comfort of seat, the seat of adjustable backrest angle has obtained application more and more widely, especially the use on automobile is very general, and chaufeur and passenger can be adjusted to optimum position by backrest by the angle regulator arranging on the seat.
At present, angle regulator adopts the mode of Planetary Gear Transmission to realize angular adjustment more.As depicted in figs. 1 and 2, a kind of typical angle regulator 11 is arranged between backrest 12 and base 13, comprises adjusting angle mechanism 111 and self-locking mechanism 112; Wherein, adjusting angle mechanism 111 adopts Planetary Gear Transmission principle, by driving its drive element to realize backrest 12 with respect to the rotation of base 13; Self-locking mechanism 112 comprises housing 1121 and is arranged at axle drive shaft, locking cam and the two groups of voussoir assemblies in housing 1121, locking cam is fixedly connected with housing, one end of axle drive shaft is plugged in housing and is fixedly connected with two groups of voussoir assemblies, the other end is connected with the handwheel outside housing, axle drive shaft rotates under the drive of handwheel, drive two groups of voussoir assemblies to move with respect to locking cam, thereby between housing and locking cam, set up locking relation by voussoir assembly.
As shown in Figures 3 to 5, the many modes by welding of traditional angle regulator realize being fixedly connected with of adjusting angle mechanism and self-locking mechanism, particularly, the housing of self-locking mechanism and adjusting angle mechanism are directly welded and are connected.
As shown in Figure 6, adopting this kind to be fixedly connected with the degree of freedom that self-locking mechanism that mode connects and adjusting angle mechanism go up in any direction is all restricted, and due to the existence of the manufacturing errors of part and assembly error etc., can cause the internal diameter center O of self-locking mechanism middle shell and the centre hole center O of the internal gear 1111 in adjusting angle mechanism ' there is comparatively significantly coaxiality error; When this coaxiality error surpasses voussoir and departs from the space that housing discharges, can cause voussoir and housing internal diameter to have movement interference, cause the operation moment of torsion increase of handwheel or stuck, affected the adjustment of chair angle.
Therefore, how to reduce even to eliminate the coaxiality error between the internal diameter center of self-locking mechanism middle shell and the center of the internal gear centre hole in adjusting angle mechanism, thereby avoid the movement interference between voussoir and housing, improve the functional stabilization of angular adjustment apparatus, with regard to becoming those skilled in the art, need the problem of solution badly.
Summary of the invention
The object of this invention is to provide a kind of angle regulator for barbed chair, its adjusting angle mechanism and self-locking mechanism have suitable diameter clearance, both can finely tune diametrically, eliminated the coaxiality error between the internal diameter center of self-locking mechanism middle shell and the center of the internal gear centre hole in adjusting angle mechanism, thereby avoid the movement interference between voussoir and housing, improve the functional stabilization of angular adjustment apparatus.Another object of the present invention is to provide a kind of barbed chair that comprises above-mentioned angle regulator.
For solving the problems of the technologies described above, the invention provides a kind of angle regulator for barbed chair, comprise adjusting angle mechanism and self-locking mechanism, the internal gear of described adjusting angle mechanism is provided with some boss towards a side of described self-locking mechanism, and the housing periphery of described self-locking mechanism offers the groove mating with described boss; Described groove and described boss free-running fit, and with respect to the axle center symmetry of described housing two described in the bottom minor increment of groove, be less than the minor increment between corresponding described boss; Described angle regulator also comprises axial location element, and described adjusting angle mechanism is fixed in one end of described axial location element, its other end axial restraint, is radially movably installed in described housing.
Preferably, described axial location element is annular compression ring, the periphery of described annular compression ring is provided with the first connecting portion and second connecting portion of some alternate layouts, described the first connecting portion is fixed on described adjusting angle mechanism, described the second connecting portion axial compression connection is in the outer rim of described housing, and the endoporus aperture of described annular compression ring is greater than the external diameter of described housing.
Preferably, described the first connecting portion is fixedly installed in described boss towards the upper surface of described self-locking mechanism.
Preferably, described the first connecting portion is welded in the upper surface of described boss.
Preferably, towards the surface of described adjusting angle mechanism and described housing, the surface away from described adjusting angle mechanism fits described the second connecting portion.
Preferably, on described axial location element, offer some guide grooves, described guide groove, along the radially extension of described housing, is provided with the guide finger matching with described guide groove on described housing, described guide finger is installed on described guide groove, and slides along described guide groove.
Preferably, described axial location element is loop configuration, and described guide groove is opened in the sidewall of described loop configuration, and the endoporus aperture of described annular mechanism is greater than the external diameter of described housing.
The present invention also provides a kind of barbed chair, comprise base, backrest and be installed on described base and described backrest between angle regulator, described angle regulator is angle regulator as above.
Angle regulator provided by the present invention is for barbed chair, and this angle regulator comprises adjusting angle mechanism, self-locking mechanism and for realizing the axial location element of self-locking mechanism axial location; Wherein, the internal gear of adjusting angle mechanism is provided with some boss towards a side of self-locking mechanism, and the housing periphery of self-locking mechanism offers the groove mating with boss; Groove and boss free-running fit, and with respect to the bottom minor increment of two grooves of the axle center symmetry of housing, be less than the minor increment between corresponding boss, to guarantee that groove can move radially with respect to boss under the promotion of location voussoir; Angle regulator also comprises axial location element, and adjusting angle mechanism is fixed in one end of axial location element, its other end axial restraint, is radially movably installed in housing, to do not affecting under the prerequisite of degree of freedom radially, realizes the axial location of self-locking mechanism.
In seat angular adjustment process, if there is the situation that coaxiality error appears in the center of housing and the center of internal gear, because housing and adjusting angle mechanism degree of freedom diametrically are not limited, the self-locking voussoir being arranged on housing will drive housing with respect to internal gear radial motion under the effect at locking cam, thereby the center of the center of housing and internal gear is adjusted to suitable position; Like this, adjusting angle mechanism and self-locking mechanism have suitable diameter clearance, both can finely tune diametrically, eliminated the coaxiality error between the internal diameter center of self-locking mechanism middle shell and the center of the internal gear centre hole in adjusting angle mechanism, thereby avoid the movement interference between voussoir and housing, improve the functional stabilization of angular adjustment apparatus.Simultaneously, adopt axial location element stationary housing with respect to the axial location of adjusting angle mechanism, and the restriction to housing upper groove by the boss that arranges on internal gear, limited the tangential degree of freedom of housing with respect to adjusting angle mechanism, make under torsional interaction that housing is merely able to provide at locking cam, moving radially of housing, guaranteed the installation reliability of housing and adjusting angle mechanism.
In a kind of specific embodiment, axial location element provided by the present invention is annular compression ring, the periphery of this annular compression ring is provided with some the first connecting portions and the second connecting portion, annular compression ring is set in outside housing, and the endoporus aperture of annular compression ring is greater than the external diameter of housing, the endoporus of annular compression ring and housing sidewall free-running fit, the first connecting portion is alternate with the second connecting portion be arranged in annular compression ring circumferentially, two connecting portions stagger in the axial direction, to be fixed on adjusting angle mechanism by the first connecting portion, by the second connecting portion axial compression connection or gap, be arranged at the outer rim of housing, like this, by the form of annular compression ring, realize the axial restraint of housing, circumferentially evenly forcing in housing everywhere, improved the stressed homogeneity of housing, guaranteed the accuracy of axial location.
In the another kind of specific embodiment, annular compression ring provided by the present invention, its first connecting portion is fixedly installed in boss towards the upper surface of self-locking mechanism, due to other parts more close self-locking mechanism of boss with respect to adjusting angle mechanism, the upper surface of the first connecting portion being fixed on to boss has reduced the outreach of the first connecting portion with respect to the second connecting portion, thereby simplified the structure of annular compression ring, and reduced the installation difficulty of annular compression ring on adjusting angle mechanism.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of existing seat;
Fig. 2 is the exploded view of angle regulator in seat shown in Fig. 1;
Fig. 3 is the assembly drowing of angle regulator shown in Fig. 2;
Fig. 4 is the cutaway view of B-B direction in Fig. 3;
Fig. 5 is the enlarged drawing of A part in Fig. 4;
Fig. 6 is housing center and the internal gear centre hole center schematic diagram while there is coaxiality error;
Fig. 7 is the structural representation of a kind of specific embodiment of angle regulator provided by the present invention;
Fig. 8 is the assembly drowing of angle regulator shown in Fig. 7;
Fig. 9 is the structural representation of a kind of installation site of annular compression ring provided by the present invention;
Figure 10 is the cutaway view of C-C direction in Fig. 9;
Figure 11 is the structural representation of the another kind of installation site of annular compression ring provided by the present invention;
Figure 12 is the cutaway view of D-D direction in Figure 11.
The specific embodiment
Core of the present invention is to provide a kind of angle regulator for barbed chair, its adjusting angle mechanism and self-locking mechanism have suitable diameter clearance, both can finely tune diametrically, eliminated the coaxiality error between the internal diameter center of self-locking mechanism middle shell and the center of the internal gear centre hole in adjusting angle mechanism, thereby avoid the movement interference between voussoir and housing, improve the functional stabilization of angular adjustment apparatus.Another core of the present invention is to provide a kind of barbed chair that comprises above-mentioned angle regulator.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 7 and Fig. 8, Fig. 8 is the structural representation of a kind of specific embodiment of angle regulator provided by the present invention; Fig. 9 is the assembly drowing of angle regulator shown in Fig. 8.
Angle regulator provided by the present invention is for barbed chair, and this angle regulator comprises adjusting angle mechanism 2, self-locking mechanism 3 and for realizing the axial location element of self-locking mechanism 3 axial location; Wherein, the internal gear 21 of adjusting angle mechanism 2 is provided with some boss 22 towards a side of self-locking mechanism 3, and housing 31 peripheries of self-locking mechanism 3 offer the groove 32 mating with boss 22; Groove 32 and boss 22 free-running fits, be the arc radius R2 that the radius R 1 of boss 22 is less than groove 32, and the bottom minor increment L2 with respect to centrosymmetric two grooves 32 of housing 31, be less than the minor increment L1 between corresponding boss 22, to guarantee that groove 32 can move radially with respect to boss 22 under the promotion of location voussoir; Angle regulator also comprises axial location element, adjusting angle mechanism 2 is fixed in one end of axial location element, its other end axial restraint, be radially movably installed in housing 31, to do not affecting under the prerequisite of degree of freedom radially, realize the axial location of self-locking mechanism 3.
Above-mentioned corresponding boss 22 refers to two boss that mate respectively with centrosymmetric two grooves 32.
The adjusting angle mechanism 2 that it is pointed out that angle regulator provided by the present invention is traditional planetary gear type adjusting angle mechanism 2, and its structure and principle of work are same as the prior art, do not repeat them here; Self-locking mechanism 3 provided by the present invention comprises other structures that can realize self-locking simultaneously, such as axle drive shaft, locking cam and the self-locking voussoir etc. that are arranged in volume housing 31.
In seat angular adjustment process, if there is the situation that coaxiality error appears in housing 31 center and internal gear 21 center, because housing 31 and adjusting angle mechanism degree of freedom diametrically are not limited, the self-locking voussoir being arranged on housing 31 will drive housing 31 with respect to internal gear 21 radial motions under the effect at locking cam, thereby housing 31 center and internal gear 21 center are adjusted to suitable position; Like this, adjusting angle mechanism 2 and self-locking mechanism 3 have suitable diameter clearance, both can finely tune diametrically, eliminated the coaxiality error between the internal diameter center of self-locking mechanism 3 middle shells 31 and the center of internal gear 21 centre holes in adjusting angle mechanism 2, thereby avoid the movement interference between voussoir and housing 31, improve the functional stabilization of angular adjustment apparatus.Simultaneously, adopt axial location element stationary housing 31 with respect to the axial location of adjusting angle mechanism 2, and by the restriction of 22 pairs of housing 31 upper grooves 32 of boss of setting on internal gear 21, limited the tangential degree of freedom of housing 31 with respect to adjusting angle mechanism 2, make under torsional interaction that housing 31 is merely able to provide at locking cam, moving radially of housing 31, guaranteed the installation reliability of housing 31 with adjusting angle mechanism 2.
In a kind of specific embodiment, axial location element provided by the present invention is annular compression ring 4, annular compression ring 4 is set in outside housing 31, and the endoporus aperture of annular compression ring 4 is greater than the external diameter of housing 31, the endoporus of annular compression ring 4 coordinates with housing 31 sidewall spacers, the periphery of this annular compression ring 4 is provided with some the first connecting portions 41 and the second connecting portion 42, the first connecting portion 41 is alternate with the second connecting portion 42 be arranged in annular compression ring 4 circumferentially, two connecting portions stagger in the axial direction, to be fixed on adjusting angle mechanism 2 by the first connecting portion 41, by the second connecting portion 42 axial compression connections or gap, be arranged at the outer rim of housing 31, like this, by the form of annular compression ring 4, realize the axial restraint of housing 31, circumferentially evenly forcing in housing 31 everywhere, improved the stressed homogeneity of housing 31, guaranteed the accuracy of axial location.
The endoporus of annular compression ring 4 coordinates with housing 31 sidewall spacers, apparently, gap between endoporus and housing 31 should be able to housing case center and the error amount of floating of internal gear center right alignment, the concrete numerical value in gap between this endoporus and housing 31 sidewalls should be determined according to the actual specification of angle regulator and operating needs, not repeat them here.
As shown in Figure 9 and Figure 10, above-mentioned the first connecting portion 41 can be fixedly installed in boss 22 towards the upper surface of self-locking mechanism 3, due to other parts more close self-locking mechanism 3 of boss 22 with respect to adjusting angle mechanism 2, the upper surface of the first connecting portion 41 being fixed on to boss 22 has reduced the outreach of the first connecting portion 41 with respect to the second connecting portion 42, thereby simplified the structure of annular compression ring 4, and reduced the installation difficulty of annular compression ring 4 on adjusting angle mechanism 2.
Apparently, the first connecting portion 41 is also not limited to the upper surface that is fixed on boss 22, and it also can be installed on adjusting angle mechanism 2 other fixed parts, for example, as shown in Figure 11 and Figure 12, the first connecting portion 41 is installed on to the surface of internal gear 21 etc.
The first connecting portion 41 can be welded in the upper surface of described boss 22, also can by this area conventional use other be fixedly connected with mode and realize being connected of the first connecting portion 41 and boss 22, such as clamping or bolt connection etc.
Towards the surface of adjusting angle mechanism 2 and housing 31, the surface away from adjusting angle mechanism fits above-mentioned the second connecting portion 42, the second connecting portion 42 fits and can realize preferably axial location with housing 31, meanwhile, there is not the relation of being fixedly connected with in both, can not limit moving radially of housing 31; Apparently, the second connecting portion 42 also can and housing 31 between there is suitable gap.Apparently, above-mentioned the second connecting portion 42 also can and housing 31 between there is suitable axial distance.
From theory, axial location element is also not limited to the form of above-mentioned annular compression ring 4, also can be for realizing axial location, other structures movably radially.
In the another kind of specific embodiment, on axial location element provided by the present invention, offer some guide grooves, guide groove, along the radially extension of housing 31, is provided with the guide finger matching with guide groove on housing 31, guide finger is installed on guide groove, and slides along described guide groove; When there is coaxiality deviation, self-locking voussoir promotes housing 31 motions, and then promotes guide finger and move radially in guide groove, thereby realizes the radially adjustment in certain limit.
Above-mentioned axial location element is loop configuration, and guide groove is opened in the sidewall of described loop configuration, and the endoporus aperture of described annular mechanism is greater than the external diameter of described housing 31, to upwards evenly push down housing 31 in week.
Apparently, the axial location element providing in this kind of specific embodiment is merely able to realize the adjustment in guide direction, and setting range is obviously less than the concrete mode of the first, only as a kind of possibility.
It is pointed out that ordinal numbers such as " first, second " described in literary composition is in order to distinguish the different structure of same names, only for convenience, do not represent certain order, more should not be construed as any restriction.
Except above-mentioned angle regulator, the present invention also provides a kind of barbed chair that comprises above-mentioned angle regulator, and other each several part structures of this barbed chair please refer to prior art, do not repeat them here.
Above a kind of barbed chair provided by the present invention and angle regulator thereof are described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (8)
1. the angle regulator for barbed chair, comprise adjusting angle mechanism (2) and self-locking mechanism (3), the internal gear (21) of described adjusting angle mechanism (2) is provided with some boss (22) towards a side of described self-locking mechanism (3), and housing (31) periphery of described self-locking mechanism (3) offers the groove (32) mating with described boss (22); It is characterized in that, described groove (32) and described boss (22) free-running fit, and with respect to the bottom minor increment of groove (32) described in described housing (31) centrosymmetric two, be less than the minor increment between corresponding described boss (22); Described angle regulator also comprises axial location element, and described adjusting angle mechanism (2) is fixed in one end of described axial location element, its other end axial restraint, is radially movably installed in described housing (31).
2. the angle regulator for barbed chair according to claim 1, it is characterized in that, described axial location element is annular compression ring (4), the periphery of described annular compression ring (4) is provided with the first connecting portion (41) and second connecting portion (42) of some alternate layouts, described the first connecting portion (41) is fixed on described adjusting angle mechanism (2), described the second connecting portion (42) axial compression connection is in the outer rim of described housing (31), and the endoporus aperture of described annular compression ring (4) is greater than the external diameter of described housing (31).
3. the angle regulator for barbed chair according to claim 2, is characterized in that, described the first connecting portion (41) is fixedly installed in described boss (22) towards the upper surface (221) of described self-locking mechanism (3).
4. the angle regulator for barbed chair according to claim 3, is characterized in that, described the first connecting portion (41) is welded in the upper surface of described boss (22).
5. the angle regulator for barbed chair according to claim 2, is characterized in that, towards the surface of described adjusting angle mechanism (2) and described housing (31), the surface away from described adjusting angle mechanism fits described the second connecting portion (42).
6. the angle regulator for barbed chair according to claim 1, it is characterized in that, on described axial location element, offer some guide grooves, described guide groove is along the radially extension of described housing (31), described housing is provided with the guide finger matching with described guide groove on (31), described guide finger is installed on described guide groove, and slides along described guide groove.
7. the angle regulator for barbed chair according to claim 6, it is characterized in that, described axial location element is loop configuration, and described guide groove is opened in the sidewall of described loop configuration, and the endoporus aperture of described annular mechanism is greater than the external diameter of described housing (31).
8. a barbed chair, comprise base, backrest and be installed on described base and described backrest between angle regulator, it is characterized in that, described angle regulator is the angle regulator as described in claim 1 to 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692777.4A CN103625318B (en) | 2013-12-17 | 2013-12-17 | A kind of barbed chair and angle regulator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692777.4A CN103625318B (en) | 2013-12-17 | 2013-12-17 | A kind of barbed chair and angle regulator thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103625318A true CN103625318A (en) | 2014-03-12 |
| CN103625318B CN103625318B (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310692777.4A Active CN103625318B (en) | 2013-12-17 | 2013-12-17 | A kind of barbed chair and angle regulator thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108634662A (en) * | 2018-07-19 | 2018-10-12 | 深圳市悠睿科技有限公司 | A kind of seat reclining device |
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| US6318806B1 (en) * | 1998-12-01 | 2001-11-20 | Bertrand Faure Equipements Sa | Vehicle seat having a pivot mechanism |
| CN201468560U (en) * | 2009-07-04 | 2010-05-19 | 湖北中航精机科技股份有限公司 | Angle modulation apparatus for chair and chair with such angle modulation apparatus |
| CN102046413A (en) * | 2008-06-13 | 2011-05-04 | 布罗斯尔汽车零件科堡两合公司 | Adjustment fitting |
| CN102101450A (en) * | 2009-12-22 | 2011-06-22 | C.劳勃.汉默斯坦两合有限公司 | Swining butt-jointing matching device used for adjusting device of automotive chair, particularly for butt-jointing matching device of backrest |
| CN202827204U (en) * | 2012-09-04 | 2013-03-27 | 上海延锋江森座椅有限公司 | Adjusting device of automobile seat electric angle adjustor |
| CN203601062U (en) * | 2013-12-17 | 2014-05-21 | 湖北中航精机科技有限公司 | Adjustable seat and angle adjusting device thereof |
-
2013
- 2013-12-17 CN CN201310692777.4A patent/CN103625318B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318806B1 (en) * | 1998-12-01 | 2001-11-20 | Bertrand Faure Equipements Sa | Vehicle seat having a pivot mechanism |
| CN102046413A (en) * | 2008-06-13 | 2011-05-04 | 布罗斯尔汽车零件科堡两合公司 | Adjustment fitting |
| CN201468560U (en) * | 2009-07-04 | 2010-05-19 | 湖北中航精机科技股份有限公司 | Angle modulation apparatus for chair and chair with such angle modulation apparatus |
| CN102101450A (en) * | 2009-12-22 | 2011-06-22 | C.劳勃.汉默斯坦两合有限公司 | Swining butt-jointing matching device used for adjusting device of automotive chair, particularly for butt-jointing matching device of backrest |
| CN202827204U (en) * | 2012-09-04 | 2013-03-27 | 上海延锋江森座椅有限公司 | Adjusting device of automobile seat electric angle adjustor |
| CN203601062U (en) * | 2013-12-17 | 2014-05-21 | 湖北中航精机科技有限公司 | Adjustable seat and angle adjusting device thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108634662A (en) * | 2018-07-19 | 2018-10-12 | 深圳市悠睿科技有限公司 | A kind of seat reclining device |
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| CN103625318B (en) | 2015-11-04 |
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