CN203697999U - Height regulating mechanism for automobile seat - Google Patents
Height regulating mechanism for automobile seat Download PDFInfo
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- CN203697999U CN203697999U CN201320839465.7U CN201320839465U CN203697999U CN 203697999 U CN203697999 U CN 203697999U CN 201320839465 U CN201320839465 U CN 201320839465U CN 203697999 U CN203697999 U CN 203697999U
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Abstract
The utility model provides a height regulating mechanism for an automobile seat. The height regulating mechanism comprises a first two-way overturn clutch and a second two-way overturn clutch sharing a pusher dog disc. The first two-way overturn clutch comprises a first transmission star wheel, the outer side face of the first transmission star wheel comprises three first arc surfaces and three second arc surfaces which are arranged at intervals along the circumference, and the first arc surfaces and the second arc surfaces are connected through first arc wedge surfaces; springs are respectively arranged between the first arc surfaces and a circular groove wheel of the pusher dog disc, and the two ends of each spring are provided with rollers clamped between the first arc wedge surfaces and the circular groove wheel. The second two-way overturn clutch comprises a second transmission star wheel, the outer side face of the second transmission star wheel comprises three third arc surfaces and three planes which are arranged at intervals along the circumference, and the third arc surfaces and the planes are connected through second arc wedge surfaces; a pair of pin rollers clamped between the second arc wedge surfaces and the inner side face of an output end shell under the effect of elastic pieces are arranged between each group of pusher dogs of the pusher dog disc. The height regulating mechanism is good in self-locking performance, stable in working performance and high in control accuracy.
Description
Technical field
The utility model relates to automobile technical field, particularly relates to a kind of automotive seat height-regulating mechanism.
Background technology
Automotive seat, in order to meet different height and the bodily form driver human body location and traveling comfort requirement in vehicle body, need to regulate the height of seat conventionally, and this need to be just automotive seat configuration Height-adjusting device.The automobile chair heightening device ubiquity of prior art is fragile, the defects such as control accuracy is low, for example, notification number is the height adjuster of the disclosed a kind of device for adjusting height of automobile seats of utility model patent of CN201136447Y, its propulsive effort input end is to carry out torque transfer by first order overriding clutch, handle resets by retracing spring, and first order overriding clutch and handle are to insert the first transmission star-wheel by the protruded stigma on handle to carry out the transmission of power, second stage overriding clutch inserts the transmission of carrying out power in terminal pad by the protruded stigma on the second transmission star-wheel, although such structure is simple, but each parts easily reach fatigue limit, cause damage, and control accuracy is lower.The utility model patent of notification number CN202098302U discloses a kind of drive mechanism of automobile chair heightening device, the first transmission star-wheel arranged outside Rhizoma Sparganii projection at the first double rolling key clutch is connected with handle, three special-shaped shrinkage pools are set on the second transmission star-wheel, three abnormity projections are set on claw plate, coordinate to carry out the transmission between first order overriding clutch and second stage overriding clutch by special-shaped projection with special-shaped shrinkage pool; Such respective outer side edges is stable, and the transmission of power is reliable, has improved control accuracy, and bearing surface increases, thereby not fragile; And on input end shell, be provided with three fan grooves, and the Rhizoma Sparganii projection of the first double rolling key clutch is matched with three fan grooves, the stroke with this to handle limits, and has saved retracing spring, has simplified automotive seat height-regulating mechanism; But in use, or the larger moment of torsion of lever operated needs, thereby operation effort, very flexible; Although lever operated alerting ability is good, self-locking performance is poor, the phenomenon automatically declining again after having the height of automotive seat to heighten, and the phenomenon that automatically raises again after turning down of the height of automotive seat, thus automotive seat are heightened the poor stability of effect; And service life is short.
Summary of the invention
The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model is to provide that a kind of self-locking property is good, stable work in work, automotive seat height-regulating mechanism that control accuracy is high, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model provides a kind of automotive seat height-regulating mechanism, comprise coaxial input end shell, the first double rolling key clutch, the second double rolling key clutch, mouth shell and the output shaft arranging successively, described the first double rolling key clutch and the second double rolling key clutch share a claw plate; Described the first double rolling key clutch comprises the first transmission star-wheel, described claw plate is circular sheave towards a side of described the first transmission star-wheel, described circular sheave and described input end shell surround the space of placing described the first transmission star-wheel, described the first transmission star-wheel is provided with the assembly opening coordinating with the madial wall of the circular sheave of described claw plate towards a side of claw plate, gap between described the first transmission star-wheel and described circular sheave is provided with three springs, and the two ends of described spring are respectively equipped with roller; Described the second double rolling key clutch comprises the second transmission star-wheel, described the second transmission star-wheel is located in the cavity that described claw plate and described mouth shell surround, described claw plate is provided with three abnormity projections towards a side of described the second transmission star-wheel, described the second transmission star-wheel is provided with three special-shaped shrinkage pools towards a side of described claw plate, and three special-shaped projections are located in three special-shaped shrinkage pools; Described claw plate is provided with six pusher dogs towards the side of described the second transmission star-wheel, the lateral wall of described the second transmission star-wheel is provided with three projections, and described six pusher dogs one group are located between each projection between two; Between every group of pusher dog, be provided with a pair of roller, between every pair of roller, be provided with elastic component; Described the second transmission star-wheel is connected with described output shaft towards a side of described mouth shell;
The lateral surface of described the first transmission star-wheel comprises the three section of first coaxial arc surface being uniformly distributed along the circumference, and the central angle of described the first arc surface is 60 °-70 °; Midway location between every adjacent two section of first arc surface is respectively equipped with second arc surface coaxial with described the first arc surface, the greatly at least 1mm of radius of radius ratio first arc surface of described the second arc surface, and the central angle of described the second arc surface is 6 °-9 °; Described the first arc surface is connected by the first circular arc wedge surface with the second arc surface, the radius of described the first circular arc wedge surface be greater than the first arc surface radius, be less than the radius of the second arc surface;
Three described springs are located at respectively three section of first arc surface place, and described roller is sandwiched between described the first circular arc wedge surface and described circular sheave;
The lateral surface of described the second transmission star-wheel comprises the three sections of coaxial three-arc faces that are uniformly distributed along the circumference, the central angle of described three-arc face is 70 °-80 °, midway location between every adjacent two sections of three-arc faces is respectively equipped with a plane, described plane to the distance in the axle center of described the second transmission star-wheel than the little at least 0.5mm of the radius of described three-arc face, described three-arc face is connected by the second circular arc wedge surface with described plane, described the second circular arc wedge surface and described plane are tangent, the radius of described the second circular arc wedge surface equates to the distance in the axle center of described the second transmission star-wheel with described plane, three described projections are located at respectively the segmental arc middle part of three sections of described three-arc faces,
Described elastic component is sandwiched between described the second circular arc wedge surface and the medial surface of described mouth shell described roller, forms the bidirectional locking structure between described the second transmission star-wheel and described mouth shell; In the time of lock position, the angle between the tangent line of the medial surface of the tangent line of described roller and described the second circular arc wedge surface and described roller and described mouth shell is 6 °-9 °.
Preferably, the gap between described pusher dog and described roller is 0.5mm-1.5mm.
Preferably, in the assembly opening of described the first transmission star-wheel, be provided with the anti-friction ring coordinating with the madial wall of described circular sheave; The two ends of described spring are respectively equipped with a guide holder, and described roller is located at the outside of described guide holder; Described mouth shell comprises annular sidewall and connecting bottom board, and described annular sidewall is fixed as one by welding process and described connecting bottom board; Described the first transmission star-wheel, the second transmission star-wheel are precision stamping metal piece.
Preferably, described the second transmission star-wheel is provided with splined hole towards a side of described mouth shell, and described the second transmission star-wheel is formed and is connected by spline structure with described output shaft.
Preferably, the clutch end of described output shaft is provided with gear, and the number of teeth of described gear is 9, and the modulus of described gear is 2.
Preferably, described input end shell is provided with three blocks, the both sides of each block be respectively equipped with one described in roller, between two rollers between adjacent two blocks, be provided with described spring.
Preferably, the outside of described the first transmission star-wheel is provided with three described springs is carried out to three spacing projections.
Preferably, described claw plate is the metal piece of a forging molding.
Preferably, described input end shell is precision stamping metal piece.
Preferably, the end face of described input end shell is provided with three spacing fan grooves that distribute along even circumferential, described the first transmission star-wheel is provided with the Rhizoma Sparganii projection distributing along even circumferential towards a side of input end shell, described Rhizoma Sparganii projection is located in three spacing fan grooves correspondingly.
As mentioned above, automotive seat height-regulating mechanism of the present utility model, has following beneficial effect:
1, the first circular arc wedge surface of the first transmission star-wheel and the circular sheave of claw plate are clamped roller, can form failure-free bidirectional self-locking, the second circular arc wedge surface of the second transmission star-wheel and the medial surface of mouth shell are clamped roller, also can form failure-free bidirectional self-locking, when applying after moment to handle, the locking release easily of a direction between the first transmission star-wheel and claw plate, also Bidirectional unlocking easily between the second transmission star-wheel and mouth shell; Thereby the utility model self-locking property is good, stable work in work, control accuracy are high, flexible operation.
2, the gap between pusher dog and roller only has 0.5mm-1.5mm, thereby the idle travel that handle of the present utility model rotates is little, and lever operated is highly sensitive.
3, the setting of anti-friction ring makes the friction force between the first transmission star-wheel and claw plate little, thereby the utility model operation is more flexible and noise is little; The setting of both ends of the spring guide holder makes roller stressed evenly, good stability; The good rigidly of the annular sidewall of mouth shell, the first transmission star-wheel, the second transmission star-wheel all adopt precision stamping metal piece, thus the ability of anti-extrusion deformation is strong, thus make that the utility model is not fragile, longer service life.
4, the number of teeth of the gear of output shaft is 9, and modulus is 2, with the number of teeth of prior art be 6 gear ratios, gear of the present utility model is with to be fixed on the Meshing stability of the tooth plate on automotive seat good, thus the utility model stability, good reliability in the time of work.
5, claw plate is the metal piece of a forging molding, and compared with the metallic sintered products of prior art, anti-extrusion deformation ability of the present utility model is strong, thereby structure of the present utility model is safer, reliable, has guaranteed better service life of the present utility model.
6, input end shell adopts stamped metal part, makes input end shell reliable with being connected of mouth shell, not yielding, thus stable performance of the present utility model.
Accompanying drawing explanation
Fig. 1 is shown as the exploded view of automotive seat height-regulating mechanism of the present utility model.
Fig. 2 is shown as the reversed shooting figure of Fig. 1.
Fig. 3 is shown as the input end shell of automotive seat height-regulating mechanism of the present utility model and the confined state schematic diagram of the first transmission star-wheel.
Fig. 4 is shown as the structural representation of the first double rolling key clutch of automotive seat height-regulating mechanism of the present utility model.
Fig. 5 is shown as the structural representation of the second double rolling key clutch of automotive seat height-regulating mechanism of the present utility model.
Fig. 6 is shown as the profile diagram of the lateral surface of the first transmission star-wheel of automotive seat height-regulating mechanism of the present utility model.
Fig. 7 is shown as the profile diagram of the lateral surface of the second transmission star-wheel of automotive seat height-regulating mechanism of the present utility model.
Element numbers explanation
1 input end shell 101 circular holes
102 spacing fan groove 103 blocks
2 first transmission star-wheel 201 projections
202 protruding 203 assembly openings
210 first arc surface 220 second arc surfaces
230 first circular arc wedge surface 3 springs
301 roller 302 guide holders
The circular sheave of 4 claw plate 401
402 pusher dog 403 abnormity projections
404 anti-friction ring 5 bidirectional locking structures
501 elastic component 502 rollers
6 second transmission star-wheel 601 projections
The special-shaped shrinkage pool of 602 splined hole 603
610 three-arc face 620 planes
630 second circular arc wedge surface 7 annular sidewalls
8 connecting bottom board 9 output shafts
901 gears
The specific embodiment
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification sheets.
Refer to Fig. 1 to Fig. 7.Notice, appended graphic the illustrated structure of this specification sheets, ratio, size etc., all contents in order to coordinate specification sheets to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, in this specification sheets, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the utility model without essence.
In view of the automobile chair heightening device of prior art is fragile, control accuracy is low, lever operated very flexible, operation effort, heighten the defects such as effect is unstable.Contriver of the present utility model improves prior art, designs that a kind of self-locking property is good, stable work in work, control accuracy are high, the automotive seat height-regulating mechanism of flexible operation, not fragile, long service life.
Below will be elaborated to automotive seat height-regulating mechanism of the present utility model by specific embodiment.
As shown in Figures 1 to 7, a kind of automotive seat height-regulating mechanism, comprises coaxial input end shell 1, the first double rolling key clutch, the second double rolling key clutch, mouth shell and the output shaft 9 arranging successively, and the outside of described input end shell 1 is provided with handle, described the first double rolling key clutch and the second double rolling key clutch share a claw plate 4, described the first double rolling key clutch comprises the first transmission star-wheel 2, described the first transmission star-wheel 2 is provided with the Rhizoma Sparganii projection 201 distributing along even circumferential towards a side of input end shell 1, described handle is connected with described Rhizoma Sparganii projection 201, described claw plate 4 is circular sheave 401 towards a side of described the first transmission star-wheel 2, described circular sheave 401 surrounds the space of placing described the first transmission star-wheel 2 with described input end shell 1, described the first transmission star-wheel 2 is provided with the assembly opening 203 coordinating with the madial wall of the circular sheave 401 of described claw plate 4 towards a side of claw plate 4, described the second double rolling key clutch comprises the second transmission star-wheel 6, described the second transmission star-wheel is located in the cavity that described claw plate 4 and described mouth shell surround, described claw plate 4 is provided with three abnormity projections 403 towards a side of described the second transmission star-wheel 6, described the second transmission star-wheel 6 is provided with three special-shaped shrinkage pools 603 towards a side of described claw plate 4, three abnormity projections 403 are located in three special-shaped shrinkage pools 603, and described the second transmission star-wheel 6 is connected with described output shaft 9 towards a side of described mouth shell.Input end shell 1 and mouth shell constitute the complete housing of automotive seat height-regulating mechanism of the present utility model, play the effect of supporting main core part such as output shaft 9 grade, can adopt undercut riveted joint, rivet connect or are welded to connect between two shells.
The lateral surface of described the first transmission star-wheel 2 of the present utility model comprises the three section of first coaxial arc surface 210 being uniformly distributed along the circumference, and the central angle alpha of described the first arc surface is 60 °-70 °; Midway location between every adjacent two section of first arc surface 210 is respectively equipped with second arc surface 220 coaxial with described the first arc surface 210, the greatly at least 1mm of radius of radius ratio first arc surface 210 of described the second arc surface 220, the central angle β of described the second arc surface is 6 °-9 °; Described the first arc surface 210 is connected by the first circular arc wedge surface 230 with the second arc surface 220, the radius of described the first circular arc wedge surface 230 be greater than the first arc surface 210 radius, be less than the radius of the second arc surface 220.
Between three section of first arc surface 210 of described the first transmission star-wheel and described circular sheave 401, be respectively equipped with a spring 3, the both ends of described spring 3 are equipped with guide holder 302, the outside of described guide holder 302 is equipped with roller 301, and described roller 301 is sandwiched between described the first circular arc wedge surface 230 and described circular sheave 401.
The lateral surface of described the second transmission star-wheel 6 comprises the three sections of coaxial three-arc faces 610 that are uniformly distributed along the circumference, the central angle γ of described three-arc face is 70 °-80 °, midway location between every adjacent two sections of three-arc faces 610 is respectively equipped with a plane 620, described plane 620 to the distance in the axle center of described the second transmission star-wheel 6 than the little at least 0.5mm of the radius of described three-arc face 610, described three-arc face 610 is connected by the second circular arc wedge surface 630 with described plane 620, described the second circular arc wedge surface 630 is tangent with described plane 620, the radius of described the second circular arc wedge surface 630 equates to the distance in the axle center of described the second transmission star-wheel 6 with described plane 620, the segmental arc middle part of three sections of described three-arc faces 610 is respectively equipped with a projection 601.
Described claw plate 4 is provided with six pusher dogs 402 towards the side of described the second transmission star-wheel 6, described six pusher dogs 402 one group are located between each projection 601 between two; Between every group of pusher dog 402, be provided with a pair of roller 502, between every pair of roller 502, be provided with elastic component 501, described elastic component 501 is sandwiched between described the second circular arc wedge surface 630 and the medial surface of described mouth shell described roller 502, forms the bidirectional locking structure between described the second transmission star-wheel 6 and described mouth shell; In the time of lock position, the included angle A between the tangent line of the medial surface of the tangent line of described roller 502 and described the second circular arc wedge surface 630 and described roller 502 and described mouth shell is 6 °-9 °.
The first circular arc wedge surface 230 of the utility model the first transmission star-wheel 2 and the circular sheave 401 of claw plate 4 are clamped roller 301, can form failure-free bidirectional self-locking, the second circular arc wedge surface 630 of the second transmission star-wheel 6 and the medial surface of mouth shell are clamped roller 502, also can form failure-free bidirectional self-locking, when applying after moment to handle, the locking release easily of a direction between the first transmission star-wheel 2 and claw plate 4, also Bidirectional unlocking easily between the second transmission star-wheel 6 and mouth shell; Thereby the utility model self-locking property is good, stable work in work, control accuracy are high, flexible operation.
Because automobile chair heightening device is installed in the right side of automotive seat conventionally, its operating handle is less from the space on ground, compartment, in order to make the idle travel of handle rotation of the present utility model little, improve lever operated sensitivity, improve the operating characteristic of handle, avoid handle rotational angle in operating process to interfere phenomenon with ground, compartment too greatly, the gap L between described pusher dog 402 and described roller 502 is made as 0.5mm-1.5mm.
In the assembly opening 203 of described the first transmission star-wheel of the present utility model, be provided with the anti-friction ring 404 coordinating with the madial wall of described circular sheave 401; The two ends of described spring 3 are respectively equipped with a guide holder 302, and described roller 301 is located at the outside of described guide holder 302; Described mouth shell comprises annular sidewall 7 and connecting bottom board 8, and described annular sidewall 7 is fixed as one by welding process and described connecting bottom board 8; Described the first transmission star-wheel 2, the second transmission star-wheel 6 are precision stamping metal piece.Wherein said guide holder 302 is preferably wear-resisting nylon guide holder.
The setting of anti-friction ring 404 make the first transmission star-wheel 2 with claw plate 4 in the time relatively rotating, friction force is between the two little, thus the utility model flexible operation, noise are little; The setting of spring 3 two ends guide holders 302 makes described roller 301 reliablely and stablely contact with guide holder 302, thereby the robust motion of spring 3 is good, and each parts are stressed evenly in the course of the work to make the utility model, and stable performance is not fragile; Compared with the sidewall of the mouth shell combining with bearing steel lining with the housing of prior art, annular sidewall good rigidly of the present utility model, can bear larger working load, not fragile; The first transmission star-wheel, the second transmission star-wheel all adopt precision stamping metal piece, compared with the metallic sintered products of prior art, thereby the ability of the first transmission star-wheel of the present utility model, the second transmission star-wheel anti-extrusion deformation is strong, thereby the utility model is not fragile, long service life.
As shown in Fig. 2, Fig. 5, described the second transmission star-wheel 6 of the present utility model can be provided with splined hole 602 towards a side of described mouth shell, and described the second transmission star-wheel 6 is formed and is connected by spline structure with described output shaft 9.Wherein, the clutch end of described output shaft 9 is provided with gear 901, and the number of teeth of described gear 901 is designed to 9, and the modulus of described gear 901 is designed to 2.Gear 901 of the present utility model is good with the Meshing stability that is fixed on the tooth plate on automotive seat, thus the utility model stability, good reliability in the time of work.
As shown in Figure 1, Figure 2, Figure 4 shows, described input end shell 1 is provided with three blocks 103, the both sides of each block 103 be respectively equipped with one described in roller 301, between two rollers 301 that adjacent two blocks are 103, be provided with described spring 3.The outside of described the first transmission star-wheel 2 is also provided with carries out three spacing projections 202 to three described springs 3.
As shown in Figure 3, be uniformly distributed with three spacing fan grooves 102 on the end face of described input end shell 1 along the circumference, the Rhizoma Sparganii projection 201 of described the first transmission star-wheel 2 is located in three spacing fan grooves 102 correspondingly.Described spacing fan groove 102 can be designed to the arc length of 60 °, thereby the total travel of handle work is limited to ± 30 °.
Described claw plate 4 of the present utility model adopts the metal piece of a forging molding, compared with the metallic sintered products of prior art, described claw plate 4 anti-extrusion deformation abilities of the present utility model are strong, thereby structure of the present utility model is safer, reliable, guarantee better service life of the present utility model.Described input end shell 1 of the present utility model adopts precision stamping metal piece, makes described input end shell 1 reliable with being connected of mouth shell, not yielding, thus stability and the good reliability of the utility model in the time of work, stable performance.
The principle of work of automotive seat height-regulating mechanism of the present utility model is:
First, automotive seat are in the time of calibrated altitude, automotive seat height-regulating mechanism of the present utility model is in initial condition, under the effect of spring 3, the roller 301 at spring 3 two ends is all clamped between the first circular arc wedge surface 230 and the circular sheave 401 of claw plate 4 of the first transmission star-wheel 2, makes the first transmission star-wheel 2 of the first double rolling key clutch and claw plate 4 in bidirectional locking state; Now the Rhizoma Sparganii projection 201 of the first transmission star-wheel 2 lays respectively at the centre of three spacing fan grooves 102 of described input end shell 1; Simultaneously, the roller 502 of elastic component 501 both sides is under the effect of elastic component 501, be clamped between the second circular arc wedge surface 630 of the second transmission star-wheel 6 and the medial surface of the annular sidewall 7 of mouth shell, make the second transmission star-wheel 6 with respect to annular sidewall 7 also in bidirectional locking state.
In the time that automotive seat need to be heightened, according to the gear 901 of output shaft 9 and the matching relationship that is fixed on the tooth plate on automotive seat, pull the handle being connected with the Rhizoma Sparganii projection 201 of the first transmission star-wheel 2, handle drives the axis rotation of the first transmission star-wheel 2 around output shaft 9 of the present utility model, the first transmission star-wheel 2 drives claw plate 4 synchronous rotaries by the roller 301 of spring 3 one end, realize the transmission agency of the first double rolling key clutch, simultaneously, the block 103 that the roller 301 of spring 3 other ends is transfused to end housing 1 blocks and can not move with the rotation of the first transmission star-wheel, thereby make the compressed distortion of spring 3, make locking structure release reverse between the first transmission star-wheel 2 and claw plate 4, when claw plate 4 has just started to rotate, the second transmission star-wheel 6 and annular sidewall 7 are in mutual lockup state, because being provided with the gap of 0.5mm-1.5mm between the pusher dog 402 of claw plate 4 and described roller 502, when pusher dog 402 props up after roller 502 in the rotation process of claw plate 4, the application of force is out of shape elastic component 501, roller 502 pitch smaller of elastic component 501 both sides, make the second bidirectional locking structure release of transmission star-wheel 6 relatively and between annular sidewall 7, claw plate 4 is rotated further, thereby three abnormity projections 403 of claw plate 4 coordinate one by one with three special-shaped shrinkage pools 603 of the second transmission star-wheel 6, drive the second transmission star-wheel 6 synchronously to rotate, the second 6 of transmission star-wheels drive output shaft 9 to rotate, thereby the gear 901 of the clutch end of output shaft 9 rotates, the tooth plate that drive is fixed on automotive seat rises, thereby realize heightening of automotive seat.After automotive seat are heightened and are put in place, decontrol handle, spring 3 loses External Force Acting, restore to the original state, in the restorable process of spring 3, the first transmission star-wheel 2 and claw plate 4 are in released state, spring 3 drives the roller 301 of its one end to drive the first transmission star-wheel 2 homings, the roller 301 at spring 3 two ends is clamped between the first transmission star-wheel 2 and claw plate 4 again, make the first transmission star-wheel 2 of the first double rolling key clutch and claw plate 4 in bidirectional locking state, handle is the homing with the homing of the first transmission star-wheel 2 also; After claw plate 4 remains static, pusher dog 402 no longer passes through roller 502 to elastic component 501 application of forces, elastic component 501 loses also reinstatement of External Force Acting, by the roller of its both sides 502 to extrapolation, the roller 502 of its both sides is clamped in again between the second transmission star-wheel 6 and annular sidewall 7, thereby the second transmission star-wheel 6 again with respect to annular sidewall 7 in bidirectional locking state, thereby also guaranteed the reliablely and stablely height after adjusting of automotive seat.
In the time that automotive seat need to reduce, oppositely pull handle, the principle of heightening with automotive seat is identical, the first transmission star-wheel 2 drives claw plate 4 to rotate backward, claw plate 4 drives the second transmission star-wheel 6 to rotate backward, and the second transmission star-wheel 6 drives output shaft 9 to rotate backward again, thereby the gear 901 of output shaft 9 clutch ends rotates backward, the tooth plate that drive is fixed on automotive seat declines, thereby realizes turning down of automotive seat.After automotive seat are turned down and are put in place, decontrol handle, same, spring 3 restores to the original state, and makes the first transmission star-wheel 2 of the first double rolling key clutch and claw plate 4 in bidirectional locking state, and handle is the homing with the homing of the first transmission star-wheel 2 also; Elastic component 501 loses also reinstatement of External Force Acting, by the roller of its both sides 502 to extrapolation, make the second transmission star-wheel 6 again with respect to annular sidewall 7 in bidirectional locking state, thereby guaranteed the reliablely and stablely height after adjusting of automotive seat.
In sum, high, the flexible operation of good, the stable work in work of automotive seat height-regulating mechanism self-locking property of the present utility model, control accuracy, not fragile, long service life.So the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (10)
1. an automotive seat height-regulating mechanism, comprise coaxial input end shell (1), the first double rolling key clutch, the second double rolling key clutch, mouth shell and the output shaft (9) arranging successively, described the first double rolling key clutch and the second double rolling key clutch share a claw plate (4), described the first double rolling key clutch comprises the first transmission star-wheel (2), described claw plate (4) is circular sheave (401) towards a side of described the first transmission star-wheel (2), described circular sheave (401) surrounds the space of placing described the first transmission star-wheel (2) with described input end shell (1), described the first transmission star-wheel (2) is provided with the assembly opening (203) coordinating with the madial wall of the circular sheave (401) of described claw plate towards a side of claw plate (4), gap between described the first transmission star-wheel (2) and described circular sheave (401) is provided with three springs (3), the two ends of described spring (3) are respectively equipped with roller (301), described the second double rolling key clutch comprises the second transmission star-wheel (6), described the second transmission star-wheel (6) is located in the cavity that described claw plate (4) and described mouth shell surround, described claw plate (4) is provided with three abnormity projections (403) towards a side of described the second transmission star-wheel (6), described the second transmission star-wheel (6) is provided with three special-shaped shrinkage pools (603) towards a side of described claw plate (4), and three abnormity projections (403) are located in three special-shaped shrinkage pools (603), described claw plate (4) is provided with six pusher dogs (402) towards the side of described the second transmission star-wheel (6), the lateral wall of described the second transmission star-wheel (6) is provided with three projections (601), and described six pusher dogs (402) one group are located between each projection (601) between two, between every group of pusher dog (402), be provided with a pair of roller (502), between every pair of roller (502), be provided with elastic component (501), described the second transmission star-wheel (6) is connected with described output shaft (9) towards a side of described mouth shell, it is characterized in that,
The lateral surface of described the first transmission star-wheel (2) comprises coaxial three section of first arc surface (210) being uniformly distributed along the circumference, and the central angle (α) of described the first arc surface is 60 °-70 °; Midway location between every adjacent two section of first arc surface (210) is respectively equipped with second arc surface (220) coaxial with described the first arc surface (210), the greatly at least 1mm of radius of radius ratio first arc surface (210) of described the second arc surface (220), the central angle (β) of described the second arc surface is 6 °-9 °; Described the first arc surface (210) is connected by the first circular arc wedge surface (230) with the second arc surface (220), and the radius of described the first circular arc wedge surface (230) is greater than the radius of the first arc surface (210), is less than the radius of the second arc surface (220);
Three described springs (3) are located at respectively three section of first arc surface (210) and are located, and described roller (301) is sandwiched between described the first circular arc wedge surface (230) and described circular sheave (401);
The lateral surface of described the second transmission star-wheel (6) comprises the coaxial three sections of three-arc faces (610) that are uniformly distributed along the circumference, the central angle (γ) of described three-arc face is 70 °-80 °, midway location between every adjacent two sections of three-arc faces (610) is respectively equipped with a plane (620), described plane (620) to the distance in the axle center of described the second transmission star-wheel (6) than the little at least 0.5mm of the radius of described three-arc face (610), described three-arc face (610) is connected by the second circular arc wedge surface (630) with described plane (620), described the second circular arc wedge surface (630) is tangent with described plane (620), the radius of described the second circular arc wedge surface (630) equates to the distance in the axle center of described the second transmission star-wheel (6) with described plane (620), three described projections (601) are located at respectively the segmental arc middle part of three sections of described three-arc faces (610),
Described elastic component (501) is sandwiched between described the second circular arc wedge surface (630) and the medial surface of described mouth shell described roller (502), forms the bidirectional locking structure between described the second transmission star-wheel (6) and described mouth shell; In the time of lock position, the angle (A) between the tangent line of described roller (502) and described the second circular arc wedge surface (630) and the tangent line of the medial surface of described roller (502) and described mouth shell is 6 °-9 °.
2. automotive seat height-regulating mechanism according to claim 1, is characterized in that: the gap (L) between described pusher dog (402) and described roller (502) is 0.5mm-1.5mm.
3. automotive seat height-regulating mechanism according to claim 1 and 2, is characterized in that: in the assembly opening (203) of described the first transmission star-wheel, be provided with the anti-friction ring (404) coordinating with the madial wall of described circular sheave (401); The two ends of described spring (3) are respectively equipped with a guide holder (302), and described roller (301) is located at the outside of described guide holder (302); Described mouth shell comprises annular sidewall (7) and connecting bottom board (8), and described annular sidewall (7) is fixed as one by welding process and described connecting bottom board (8); Described the first transmission star-wheel (2), the second transmission star-wheel (6) are precision stamping metal piece.
4. automotive seat height-regulating mechanism according to claim 1 and 2, it is characterized in that: described the second transmission star-wheel (6) is provided with splined hole (602) towards a side of described mouth shell, described the second transmission star-wheel (6) is formed and is connected by spline structure with described output shaft (9).
5. automotive seat height-regulating mechanism according to claim 1 and 2, is characterized in that: the clutch end of described output shaft (9) is provided with gear (901), and the number of teeth of described gear (901) is 9, and the modulus of described gear (901) is 2.
6. automotive seat height-regulating mechanism according to claim 1 and 2, it is characterized in that: described input end shell (1) is provided with three blocks (103), the both sides of each block (103) be respectively equipped with one described in roller (301), between two rollers (301) between adjacent two blocks (103), be provided with described spring (3).
7. automotive seat height-regulating mechanism according to claim 1 and 2, is characterized in that: the outside of described the first transmission star-wheel (2) is provided with carries out spacing three projections (202) to three described springs (3).
8. automotive seat height-regulating mechanism according to claim 1 and 2, is characterized in that: described claw plate (4) is the metal piece of a forging molding.
9. automotive seat height-regulating mechanism according to claim 1 and 2, is characterized in that: described input end shell (1) is precision stamping metal piece.
10. automotive seat height-regulating mechanism according to claim 1 and 2, it is characterized in that: the end face of described input end shell (1) is provided with three the spacing fan grooves (102) that distribute along even circumferential, described the first transmission star-wheel (2) is provided with the Rhizoma Sparganii projection (201) distributing along even circumferential towards a side of input end shell (1), described Rhizoma Sparganii projection (201) is located in three spacing fan grooves (102) correspondingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839465.7U CN203697999U (en) | 2013-12-18 | 2013-12-18 | Height regulating mechanism for automobile seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320839465.7U CN203697999U (en) | 2013-12-18 | 2013-12-18 | Height regulating mechanism for automobile seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203697999U true CN203697999U (en) | 2014-07-09 |
Family
ID=51048485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320839465.7U Expired - Fee Related CN203697999U (en) | 2013-12-18 | 2013-12-18 | Height regulating mechanism for automobile seat |
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| Country | Link |
|---|---|
| CN (1) | CN203697999U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723910A (en) * | 2013-12-18 | 2015-06-24 | 上海交运汽车精密冲压件有限公司 | Height-regulating mechanism of vehicle seat |
| CN104999931A (en) * | 2015-07-24 | 2015-10-28 | 浙江龙生汽车部件股份有限公司 | Intermittent motion adjusting pump with self-locking function |
| CN105109368A (en) * | 2015-08-27 | 2015-12-02 | 无锡全盛安仁机械有限公司 | Automobile seat height adjusting transmission device |
| TWI631292B (en) * | 2016-11-02 | 2018-08-01 | 信昌機械廠股份有限公司 | Clutch mechanism with seat adjustment device |
| CN114179897A (en) * | 2021-12-20 | 2022-03-15 | 延锋国际座椅系统有限公司 | Folding steering wheel |
-
2013
- 2013-12-18 CN CN201320839465.7U patent/CN203697999U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723910A (en) * | 2013-12-18 | 2015-06-24 | 上海交运汽车精密冲压件有限公司 | Height-regulating mechanism of vehicle seat |
| CN104999931A (en) * | 2015-07-24 | 2015-10-28 | 浙江龙生汽车部件股份有限公司 | Intermittent motion adjusting pump with self-locking function |
| CN105109368A (en) * | 2015-08-27 | 2015-12-02 | 无锡全盛安仁机械有限公司 | Automobile seat height adjusting transmission device |
| TWI631292B (en) * | 2016-11-02 | 2018-08-01 | 信昌機械廠股份有限公司 | Clutch mechanism with seat adjustment device |
| CN114179897A (en) * | 2021-12-20 | 2022-03-15 | 延锋国际座椅系统有限公司 | Folding steering wheel |
| CN114179897B (en) * | 2021-12-20 | 2023-03-07 | 延锋国际座椅系统有限公司 | Folding steering wheel |
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