The bent spring locking structure of sliding rail of automobile seat
Technical field
The utility model relates to a kind of sliding rail of automobile seat, especially relates to the bent spring locking structure of a kind of sliding rail of automobile seat.
Background technology
Sliding rail of automobile seat is one of radical function part of automotive seat, be installed in automotive seat bottom with adjusting seat front and back position, generally include the glidepath that is fixed on car floor and the upper slide rail of connecting chair, between upper and lower slide rail, lockable mechanism is set, for to upper slide rail locking and release.Traditional lockable mechanism complex structure, manufacturing cost are higher, after being assembled on slide rail, often need to take larger space, thereby increased, the difficulty of other parts are installed on the seat, and are difficult to ensure its locking intensity and reliability.
Utility model content
For solving above technical matters, it is a kind of simple in structure that the utility model provides, and compactness can effectively improve space availability ratio, the bent spring locking structure of locking failure-free sliding rail of automobile seat.
Technical scheme is as follows:
The bent spring locking structure of a kind of sliding rail of automobile seat, comprise upper slide rail and the glidepath that can be assembled together relative sliding, be located at lockable mechanism between described upper slide rail and glidepath, its main points are: described lockable mechanism comprises the finger mountings, the locking claw that are installed on slide rail roof, and connect the bent spring of described locking claw and finger mountings;
Described finger mountings has the matrix being fixed on slide rail roof, is provided with two journal stirrups are installed on described matrix, journal stirrup is installed all through the same sidewall of upper slide rail for these two;
Described locking claw has the substrate being placed in described upper slide rail, on described substrate, be provided with two with install journal stirrup suitable be connected journal stirrup, this connection journal stirrup is through the upper slide rail sidewall that journal stirrup one side is installed, described substrate top is provided with control panel, this control panel, through in the upper slide rail sidewall that connects journal stirrup homonymy, is extended with blade tooth along base plate bottom to connecting journal stirrup homonymy;
Described bent spring has canned paragraph, the supporting section extending along upper slide rail length direction being located on described upper slide rail sidewall and connects described installation journal stirrup and the meander sections that is connected journal stirrup, described canned paragraph is perpendicular to supporting section, it is away from the endwise skew of supporting section, form a location division, described meander sections is lower than supporting section place plane, described supporting section and control panel bottom surface butt;
On described upper slide rail sidewall, be provided with rectangular opening, be provided with through hole on glidepath, described rectangular opening and through hole and blade tooth are positioned at the same side, and described blade tooth is through rectangular opening and through hole, to realize upper slide rail and glidepath locking.
Adopt above structure, bent spring extends along upper slide rail length direction, has improved the space availability ratio of lockable mechanism, and the rotation of locking claw flexing spring meander sections utilizes bent spring screen resilience buffering, has ensured releasing process steady and smooth, without severe impact; Finger mountings is placed in to upper slide rail inside, makes structure compacter, further improve its space availability ratio; Blade tooth and control panel are positioned at homonymy, and blade tooth release stroke simultaneously, can be shortened in joint space-efficient, facilitates unlocking operation.
Described blade tooth is 4~6, and its end away from substrate is upturned, and adopts above structure, and can guarantee lock-out state time, blade tooth is unlikely to deviate from, and has improved locking intensity and reliability.
Between slide rail and glidepath, be provided with guiding mechanism on described; described guiding mechanism comprises ball retainer and is rotatably installed in the guiding ball on this ball retainer; adopt above structure; can reduce frictional damping between upper and lower slide rail; assurance mechanism operates steadily; can reduce gap between upper and lower slide rail, contribute to extend the durable time limit of use simultaneously.
The connecting portion of described upper slide rail sidewall and outer wall is provided with chamfer, so, compare fillet and curved surface chamfering, increase upper slide rail bottom space position, in the time that slide rail is assembled on body bottom panel, because body bolt head need to stretch out glidepath bottom surface, above structure makes this body bolt head sizes can have larger design space, has ensured Joint strenght.
Beneficial effect: adopt the bent spring locking structure of sliding rail of automobile seat of above technical scheme, this is simple and compact for structure, can effectively improve the space availability ratio of slide rail on longitudinally, and meanwhile, unlocking operation is convenient, and locking intensity is high, good reliability.
Brief description of the drawings
Fig. 1 is exploded perspective view of the present utility model;
Fig. 2 is the block diagram of lockable mechanism in the utility model;
Fig. 3 is longitudinal sectional view of the present utility model;
After the assembling of Fig. 4 figure the utility model, take off the block diagram of glidepath.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
As shown in Figures 1 and 3, the bent spring locking structure of a kind of sliding rail of automobile seat, comprise upper slide rail 100 and the glidepath 200 that can be assembled together relative sliding, be located at guiding mechanism 300 and lockable mechanism 400 between described upper slide rail 100 and glidepath 200, described upper slide rail 100 is roughly " n " shape, bottom, two side outward forms two outer walls 110, and two side is provided with chamfer with the connecting portion of corresponding outer wall 110; Described glidepath 200 is roughly " U " shape, and top, two side bends inwards and forms two inwalls 210, and described outer wall 110 fastens mutually with inwall 210, in the gap of guiding mechanism 300 between outer wall 110 and glidepath 200 sidewalls of upper slide rail 100; Described lockable mechanism 400 comprises the finger mountings 410, the locking claw 420 that are installed on slide rail 100 top lower surfaces, and connects the bent spring 430 of described locking claw 410 and finger mountings 420.
As shown in Figure 1 to Figure 3, described finger mountings 410 has matrix 411 and is positioned at the installation journal stirrup 412 of these matrix 411 both sides, described installation journal stirrup 412 is wholely set with matrix 411, this matrix 411 is fixed on upper slide rail 100 end faces by two rivets 413, journal stirrup 412 is installed all through the same side sidewall of upper slide rail 100, on the relative face of two journal stirrups 412, is provided with through hole for two.
Referring to Fig. 1, described locking claw 420 has substrate 421, described substrate 421 both sides have suitable with journal stirrup 412 in finger mountings 410 journal stirrup 422 that is connected, on this connection journal stirrup 422, be also provided with through hole, these substrate 421 bottoms are extended with 4 blade tooths 423 to a side, this blade tooth 423 is upturned away from the end of substrate 421, substrate 421 tops are provided with control panel 424, this control panel 424 is through with upper slide rail 100 sidewalls of blade tooth 423 homonymies and stretch out, on upper slide rail 100 sidewalls, be provided with the rectangular opening 120 passing through for blade tooth 423, relative set groove 111 on outer wall 110, rectangular opening 120 is corresponding with blade tooth 423 quantity with groove 111 quantity, the inwall 210 of glidepath 200 is provided with multiple parallel through holes 211.
As Fig. 2, the supporting section 432 that described bent spring 430 has the canned paragraph 431 that is located on described upper slide rail 100 1 side sidewalls, extend along upper slide rail 100 length directions and the meander sections 433 of through hole through journal stirrup 412 and on being connected journal stirrup 422, described canned paragraph 431 is perpendicular to supporting section 432, it is away from the endwise skew of supporting section 432, form a location division 431a, this location division 431a is connected to slide rail 100 roofs, described meander sections 433 is lower than supporting section 432 place planes, control panel 424 bottom surfaces and supporting section 432 butts.
In Fig. 1, described guiding mechanism 300 has 4, be respectively in the front-end and back-end that slide rail 100 matches with glidepath 200, each guiding mechanism 300 comprises 310 and 4 guiding balls 320 of 1 ball retainer, these 4 guiding balls 320 are rotatably installed on this ball retainer 310, and Parallel Symmetric ground is arranged.
Referring to Fig. 1 and Fig. 4, under conventional state, slide rail is in the lock state, blade tooth 423 is through rectangular opening 120 and through hole 211 and fall into groove 111, while adjusting seat before and after needing, press control panel 424, locking claw 420 starts rotation taking the meander sections 433 of bent spring 430 as axis, blade tooth 423 is deviate from groove 111, rectangular opening 120 and through hole 211, completes release, upper slide rail 100 can move forward and backward by relative glidepath 200, after adjusting to the right place, unclamp control panel 424, utilize the screen resilience of bent spring 430, locking claw 420 returns, locking slide rail.