CN202557333U

CN202557333U - Sliding rail for automobile seats

Info

Publication number: CN202557333U
Application number: CN2012201942533U
Authority: CN
Inventors: 邹耀忠
Original assignee: SUZHOU ZHONMING XIANGHE PRECISION WORK CO Ltd
Current assignee: JIANGSU ZHONGMING XIANGHE SEIKO Co Ltd
Priority date: 2012-05-03
Filing date: 2012-05-03
Publication date: 2012-11-28
Anticipated expiration: 2022-05-03

Abstract

The utility model discloses a sliding rail for automobile seats, and belongs to the technical field of automobile seat accessories. An upper guide rail is composed of a short folded edge, a long folded edge and an upper installing surface, wherein a rollaway nest is formed on each of the short folded edge and the long folded edge, a first lock pin hole is formed in the middle of the upper installing surface, and an unlocking block fixed lug, a spring fixed hole and an unlocking rod hole are formed on the long folded edge; a lower guide rail is composed of a long folded wall, a short folded wall and a lower installing surface, wherein a ball groove is formed on each of the long folded wall and the short folded wall, and a locked groove is arranged in the middle of the lower installing surface; a locking device comprises a lock pin, a pressure spring, a limit board, a return spring, an unlocking block, a wrench, an unlocking rod and a connecting sleeve; and a ball frame is composed of a ball, an upper ball positioning roll and a lower ball positioning roll, and the upper ball positioning roll, the lower ball positioning roll and the ball are arranged in an accommodating cavity defined by the rollaway nests and the ball grooves. The sliding rail disclosed by the utility model has the advantages that the sliding rail is high in strength, small in clearance, good in synchronicity and small in step pitch and has no self-locking; and because an upper sliding side face also can be used as an installing surface, the sliding rail is less in parts, easy to assemble and process, low in cost and wide in applicable range.

Description

A kind of slide rail that is used for automotive seat

Technical field

The utility model belongs to the vehicle body fittings technical field, be specifically related between a kind of seat support that is used to be installed in seat and the car body, can suitably adjust, and to the device of adjusted locking position the lengthwise position of automotive seat

Background technology

The function of sliding rail of automobile seat is being taken on the function that changes the seat front and back position as stated, must join on automotive seat as this device.At present; Comparatively commonly on the market be applied to the slide rail on the automobile seat; Mainly contain three big component set-ups, promptly one is used for being used for connecting with automotive seat and being assigned in upper rail and a blocking device that is used to lock upper rail on the lower guideway through pearl frame cunning with the lower guideway, of car floor connection.Can obtain detailed understanding in the technical scheme through previous disclosed Chinese invention patent Granted publication CN100447016C to this.This patent scheme discloses a kind of " sliding rail for vehicle seat ", and its achievement part is: the locking balance, and emissions groove distortion, distortion can not appear locking, can demonstrate fully safety; The locking step pitch is merely 10～12mm, can finely tune the seat front and back position.But also expose following problem in actual use: 1, because of slide rail is that a plurality of lock teeth are locked into locking emissions groove simultaneously when locking, thus high to the requirement on machining accuracy of parts, the difficult control of the conformability in slide rail gap and synchronism; 2, the upper rail side is less, can not be as attachment face, there is certain limitation in the installation of slide rail and seat frame.And for example, Chinese utility model patent Granted publication CN201189827Y discloses " a kind of sliding rail for vehicle seat ", and its achievement part is: the bind mode of bilateral locking; The distortion of toothrow or locked groove, distortion can not appear locking in the coupling mechanism force balance, can guarantee safe in utilization; Therefore step pitch is merely 10～12mm, can satisfy the driver and passenger seat position is done the fine setting requirement of forward and backward adjustment, and slide rail slides steadily; The gap is little, and integral structure is simple, and cost is low.But also expose following problem in actual use: 1, because the upper rail side is less, can not be as attachment face, to being connected between the frame of slide rail and automotive seat having certain limitation; 2, because the locking toothrow places both sides, and corresponding with locked groove, so higher to the requirement on machining accuracy of parts.

again, present sliding rail for vehicle seat ubiquity adjustment step pitch is big, causes therefrom can't satisfy the driving staff and want the optimal comfort degree that reaches; Again, the raceway of lower guideway is in the same plane on the existing sliding rail for vehicle seat, and is higher to the requirement on machining accuracy of part, and in proof strength, and the thickness and the material of material had certain requirement, and cost is higher relatively.

In view of above-mentioned prior art, be necessary existing rail structure is improved, the technical scheme that will introduce below produces under this background

Summary of the invention

The purpose of the utility model is that a kind of slide rail that is used for automotive seat will be provided, and not only locking intensity height, good, the no self-locking of synchronism, gap are little for it, and step pitch is little, a side of upper rail also can be used as attachment face; Be convenient to processing and fabricating simultaneously, productive costs is low, applied widely.

The purpose of the utility model reaches like this; A kind of slide rail that is used for automotive seat; Comprise that one is used for being used for connecting with automotive seat and being assigned in upper rail and a blocking device that is used to lock upper rail on the lower guideway through pearl frame cunning with the lower guideway, of car floor connection; Be characterized in: described upper rail is to constitute by lacking flanging, long flanging and connecting the last attachment face of lacking flanging, long flanging; Short flanging end wise is formed with ball first raceway and ball second raceway respectively; Long flanging end wise is formed with ball the 3rd raceway and ball the 4th raceway respectively; The two ends of described ball first raceway, ball second raceway, ball the 3rd raceway and ball the 4th raceway respectively constitute a pair of first ball defining flange one, the second ball defining flange the one, the 3rd ball defining flange one and the 4th ball defining flange one; The described attachment face of going up is arranged at intervals with a plurality of first lockpin holes at the nearly medium position of length direction; Described long flanging the nearly medium position of length direction be provided with separate lock dog fixedly ear, offer the spring fixed orifice, offer the trip lever hole at an end of length direction at the other end of length direction, fixedly offer the first return spring hole on the ear at the described lock dog of separating; Described lower guideway is the short folding wall that cooperates by the long folding wall that cooperates with short flanging, with long flanging and is connected the long wall, weak point rolled over and rolls over the following attachment face of wall and constitute; Long folding wall end wise is formed with first ball grooves and second ball grooves respectively; Short folding wall end wise is formed with the 3rd ball grooves and the 4th ball grooves respectively; The two ends of described first ball grooves, second ball grooves, the 3rd ball grooves and the 4th ball grooves respectively constitute a pair of first ball defining flange two, the second ball defining flange the two, the 3rd ball defining flange two and the 4th ball defining flange two, and described attachment face down is arranged at intervals with a plurality of locked grooves at the midway location of length direction; Described blocking device comprises lock pin, stage clip, positioning plate, return spring, separates lock dog, spanner, trip lever and adapter sleeve; Described positioning plate be positioned at a plurality of first lockpin holes under and be fixed on the attachment face; Midway location offers a plurality of second lockpin holes in the bottom surface of positioning plate; The quantity of the quantity of described second lockpin hole and described first lockpin hole is identical and the position is corresponding; It is protruding that described lock pin is formed with the locking face in the lower end of short transverse, midway location convexes with the lock pin retaining; The quantity of lock pin has three pieces at least, and an end of each lock pin is located in first lockpin hole, the other end of each lock pin after passing second lockpin hole with lower guideway on locked groove corresponding; The quantity of described stage clip is identical with the quantity of lock pin; And be set in respectively on the lock pin and at lock pin and keep off between the protruding and last attachment face, the described front end of separating lock dog offers one second return spring hole in the middle of being formed with a plurality of releasing claws, front end, front bottom end constitutes and the return spring groove of the second return spring hole flush, and described releasing claw places between adjacent two lock pins and is positioned at the protruding below of lock pin retaining; One end of described return spring constitutes that first return spring colludes, the other end constitutes second return spring and colludes; Wherein: described first return spring colludes and is passing the first return spring hole and the second return spring hole is placed in the return spring groove, and described second return spring colludes and places in the spring fixed orifice, and described adapter sleeve is installed in the trip lever hole; Described trip lever is located on the adapter sleeve, an end of described spanner with separate that lock dog cooperates, the other end of spanner cooperates with trip lever; Described pearl frame is made up of ball, last ball registration roller and following ball registration roller; The ball at last ball registration roller and two ends thereof places respectively by in ball first raceway and first ball grooves and ball the 3rd raceway and the cavity volume that the 3rd ball grooves institute enclosure becomes, and the ball at described ball registration roller down and two ends thereof places respectively by in ball second raceway and second ball grooves and ball the 4th raceway and the cavity volume that the 4th ball grooves institute enclosure becomes.

are in one of the utility model concrete embodiment; Ball first raceway that forms on the described upper rail, ball second raceway, ball the 3rd raceway, ball the 4th raceway lay respectively on the different horizontal face; First ball grooves that forms on the described lower guideway, second ball grooves, the 3rd ball grooves, the 4th ball grooves are positioned on the different horizontal face equally, and between ball first raceway and first ball grooves, between ball second raceway and second ball grooves, between ball the 3rd raceway and the 3rd ball grooves and between ball the 4th raceway and the 4th ball grooves respectively enclosure become to be useful on to hold the cavity volume of pearl frame.

are in another concrete embodiment of the utility model; The last attachment face of said upper rail the two ends of length direction be arranged at intervals with respectively a plurality of on mounting hole, the long flanging of said upper rail is arranged at intervals with a plurality of seat frame bonded assembly side mounting holes of being convenient to automotive seat equally at the two ends of length direction; The following attachment face of said lower guideway is respectively arranged with a plurality of mounting holes down at the two ends of length direction.

In another concrete embodiment of the utility model, described positioning plate takes the shape of the letter U , and the both sides of U-shaped open end outwards turn down extension and constitute a pair of spacing lug; Corresponding ground, the long folding wall of said lower guideway respectively is provided with a position-limit foot at the two ends of length direction, through cooperating of a pair of position-limit foot and a pair of spacing lug, can control upper rail on lower guideway before and after mobile distance.

in another concrete embodiment of the utility model, described separate lock dog fixedly ear have a pair ofly, fixedly be provided with one first return spring hole respectively symmetrically on the ear at a pair of lock dog of separating.

the utility model so that concrete embodiment in, the quantity of described releasing claw is lacked one than the quantity of lock pin.

the utility model more and among concrete embodiment, described locking face is inverted cone-shaped.

at again and then among concrete embodiment of the utility model, described locked groove be shaped as oblong, and the spacing between the spacing between adjacent two locked grooves and adjacent two lock pins is unequal.

the utility model again more and among concrete embodiment, the axial centre of described adapter sleeve offers the connection trepanning that is used to install trip lever.

At more and then among concrete embodiment of the utility model, an end of described spanner is provided with one and supplies to separate the spanner hole that lock dog is installed , and the other end of spanner is provided with the spanner groove that supplies trip lever to install.

the utility model is because after adopting said structure; One of advantage that has,, ball first raceway that forms on upper rail and the lower guideway and first ball grooves, ball second raceway and second ball grooves, ball the 3rd raceway and the 3rd ball grooves, ball the 4th raceway being used to of becoming with the 4th ball grooves institute enclosure be in four different horizontal faces respectively because holding the cavity volume of pearl frame; Formed the height state; Therefore slide rail receives external force to do the time spent, and the intensity of slide rail is high; Advantage two, because after lock pin passed first lockpin hole and second lockpin hole location, the locking face that has on the lock pin was locked into locked groove, and the locking face is an inverted cone-shaped again, therefore, when the locking face of inverted cone-shaped cooperated locking with locked groove, the slide rail gap was little; Advantage three, because lock pin has many pieces, the spacing between adjacent lock pin is different with spacing between adjacent locked groove, so slide rail is when locking; Several pieces of lock pins can all not locked in the locked groove, and the locking face of lock pin is locked at the side of locked groove length direction again, and a locked groove can only be locked into lock pin; The locking face is in the homonymy or the both sides of different locked grooves, and simultaneously, trip lever passes in the trip lever hole that adapter sleeve places upper rail; Corresponding trip lever hole has become the centre of gration of trip lever; Therefore, the locking of slide rail, release, front and back slip synchronism are good, and do not have locking phenomenon; Advantage four, because the spacing between adjacent lock pin is different with spacing between adjacent locked groove, and lock pin is locked at the side of locked groove, therefore, the step pitch that slide rail is regulated is little, is about 6～7mm, can realize better that the fine setting of seat front and back position is operated; Advantage five, because the long flanging of upper rail and on offer side mounting hole and last mounting hole respectively on the attachment face, therefore, a side of upper rail (promptly long flanging) also can be used as attachment face; Advantage six, because the fit structure of upper rail and lower guideway has utilized the design mechanics principle, therefore, when guaranteeing slide rail intensity; Can reduce the thickness of material; Simultaneously the slide rail volume is little, parts are few, simple in structure, easy to assembly, be convenient to processing and fabricating, productive costs is low; Advantage seven, applied widely, can realize and any being connected between the seat.

Description of drawings

Fig. 1 is an embodiment shaft side figure of the utility model.

Fig. 2 is a kind of fit structure scheme drawing of the described blocking device of the utility model at lockup state.

Fig. 3 is the another kind of fit structure scheme drawing of the described blocking device of the utility model at lockup state.

Fig. 4 is the structural representation of the described blocking device of the utility model at released state.

Fig. 5 is the cross-sectional view of the utility model.

Fig. 6 is the structural representation that is directed to a said slide rail of a pair of the utility model that automotive seat were equipped with.

Among figure: 1. upper rail; 10. go up attachment face; 11. short flanging; 111. ball first raceway; 1111. the first ball defining flange one; 112. ball second raceway; 1121. the second ball defining flange one; 12. long flanging; 121. ball the 3rd raceway; 1211. the 3rd ball defining flange one; 122. ball the 4th raceway; 1221. the 4th ball defining flange one; 13. first lockpin hole; 14. last mounting hole; 15. side mounting hole; 16. spring fixed orifice; 17. separate fixedly ear of lock dog; 171. the first return spring hole; 18. trip lever hole; 2. lower guideway, 20. times attachment faces, 21. long folding walls, 211. first ball grooves, 2111. first ball defining flanges two, 212. second ball grooves, 2121. second ball defining flanges, two, 22. short folding walls, 221. the 3rd ball grooves, 2211. the 3rd ball defining flanges two, 222. the 4th ball grooves, 2221. the 4th ball defining flanges two, 23. locked grooves, 24. position-limit foots, 25. times mounting holes; 3. protruding, 32. stage clips of blocking device, 31. lock pins, 311. locking faces, 312. lock pins retaining, 33. positioning plates, 331. second lockpin holes, 332. spacing lugs, 34. return springs, 341. first return springs collude, 342. second return springs collude, 35. separate lock dog, 351. releasing claws, 352. return spring grooves, 353. second return spring holes, 36. spanners, 361. spanner holes, 362. spanner grooves, 37. trip levers, 38. adapter sleeves, 381. and connect trepannings; 4. ball registration roller, 43. times ball registration rollers on pearl frame, 41. balls, 42..

The specific embodiment

can be expressly understood the technical spirit and the beneficial effect of the utility model more for the inspector that the makes Patent Office especially public; The applicant general combines accompanying drawing to elaborate with the mode of embodiment below; But the description to embodiment all is not the restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be regarded as the technical scheme category of the utility model.

are please with reference to Fig. 1 and combine Fig. 2, Fig. 3, Fig. 4 and Fig. 5; A kind of slide rail that is used for automotive seat of the utility model comprises that one is used for being used for connecting with automotive seat and being assigned in upper rail 1 and the blocking device 3 that is used to lock upper rail 1 on the lower guideway 2 through pearl frame 4 cunnings with the lower guideway 2, of car floor connection.Described upper rail 1 is to constitute by lacking flanging 11, long flanging 12 and connecting the last attachment face 10 of lacking flanging 11, long flanging 12; Short flanging 11 end wises are formed with ball first raceway 111 and ball second raceway 112 respectively; Long flanging 12 end wises are formed with ball the 3rd raceway 121 and ball the 4th raceway 122 respectively; And described ball first raceway 111, ball second raceway 112, ball the 3rd raceway 121 and ball the 4th raceway 122 lay respectively on the different horizontal face; Respectively constitute a pair of first ball defining flange 1 that is used for 4 position-limiting actions of pearl frame, a pair of second ball defining flange 1, a pair of the 3rd ball defining flange 1 and a pair of the 4th ball defining flange 1 at the two ends of ball first raceway 111, ball second raceway 112, ball the 3rd raceway 121 and ball the 4th raceway 122; The described attachment face 10 of going up is arranged at intervals with a plurality of first lockpin holes 13 at the nearly medium position of length direction; The quantity of first lockpin hole 13 can be three, four, five etc.; Be preferably three in the present embodiment; Described go up attachment face 10 the two ends of length direction be arranged at intervals with respectively a plurality of be convenient to install on mounting hole 14, the quantity of last mounting hole 14 does not receive any restriction, its shape does not receive any restriction yet; Can be circle, hexagon, quincunx etc., be preferably circle in the present embodiment.Described long flanging 12 the nearly medium position of length direction be provided with separate lock dog fixedly ear 17, offer spring fixed orifice 16, offer trip lever hole 18 at an end of length direction at the other end of length direction; Described separate lock dog fixedly ear 17 have a pair of; Fixedly be provided with one first return spring hole 171 respectively symmetrically on the ear 17 at a pair of lock dog of separating; Described long flanging 12 also is arranged at intervals with a plurality of seat frame bonded assembly side mounting holes of being convenient to automotive seat 15 at the two ends of length direction; The shape of side mounting hole 15 is unrestricted, can be circle, hexagon, quincunx etc., is preferably hexagon in the present embodiment.The short folding wall 22 that described lower guideway 2 cooperates by the long folding wall 21 that cooperates with short flanging 11, with long flanging 12 and is connected the long wall 21, weak point rolled over and rolls over the following attachment face 20 of wall 22 and constitute; Long folding wall 21 end wises are formed with first ball grooves 211 and second ball grooves 212 respectively; Short folding wall 22 end wises are formed with the 3rd ball grooves 221 and the 4th ball grooves 222 respectively; Described first ball grooves 211, second ball grooves 212, the 3rd ball grooves 221 and the 4th ball grooves 222 are positioned on the different horizontal face equally; And between ball first raceway 111 and first ball grooves 211, between ball second raceway 112 and second ball grooves 212, between ball the 3rd raceway 121 and the 3rd ball grooves 221 and between ball the 4th raceway 122 and the 4th ball grooves 222 respectively enclosure become to be useful on to hold the cavity volume of pearl frame 4; Respectively constitute a pair of first ball defining flange 2 2111 that is used for 4 position-limiting actions of pearl frame, a pair of second ball defining flange 2 2121, a pair of the 3rd ball defining flange 2 2211 and a pair of the 4th ball defining flange 2 2221 at the two ends of first ball grooves 211, second ball grooves 212, the 3rd ball grooves 221 and the 4th ball grooves 222; Described attachment face 20 down is arranged at intervals with a plurality of locked grooves 23 at the midway location of length direction; The shape of locked groove 23 does not receive any restriction; In the present embodiment; Be preferably oblong; Attachment face 20 is respectively arranged with a plurality of convenient following mounting holes of installing 25 under described at the two ends of length direction, and described long folding wall 21 respectively is provided with a position-limit foot 24 at the two ends of length direction, and described position-limit foot 24 is used to control upper rail 1 distance that move front and back on lower guideway 2.Described blocking device 3 comprises lock pin 31, stage clip 32, positioning plate 33, return spring 34, separates lock dog 35, spanner 36, trip lever 37 and adapter sleeve 38.Described positioning plate 33 takes the shape of the letter U; The both sides of U-shaped open end outwards turn down extension and constitute a pair of spacing lug 332; Positioning plate 33 be positioned at a plurality of first lockpin holes 13 under and be fixed on the attachment face 10 through a pair of spacing lug 332; The lateral surface of a pair of spacing lug 332 is used for rolling over a pair of position-limit foot 24 mutual actions on the wall 22 and playing position-limiting action with the length of lower guideway 2; Midway location offers a plurality of second lockpin holes 331 in the U-shaped bottom surface of positioning plate 33, and the quantity of the quantity of described second lockpin hole 331 and described first lockpin hole 13 is identical and the position is corresponding.Described lock pin 31 is formed with locking face 311 in the lower end of short transverse, midway location convexes with lock pin and keeps off protruding 312; Described locking face 311 is inverted cone-shaped; The quantity of said lock pin 31 has three pieces at least, can be four pieces, five pieces etc., in the present embodiment; Be preferably three pieces; One end of each lock pin 31 is located in first lockpin hole 13, and the other end of each lock pin 31 is in that to pass second lockpin hole 331 back corresponding with the locked groove 23 on the lower guideway 2, and the spacing between the spacing between adjacent two lock pins 31 and adjacent two locked grooves 23 is unequal.The quantity of described stage clip 32 is identical with the quantity of described lock pin 31, and be set in respectively on the lock pin 31 and lock pin keep off protruding 312 and last attachment face 10 between.The described front end of separating lock dog 35 be formed with offer one second return spring hole 353 in the middle of a plurality of releasing claw 351, the front end, front bottom end constitutes and the return spring groove 352 of the second return spring hole, 353 flush; The quantity of described releasing claw 351 is lacked one than the quantity of lock pin 31; In the present embodiment be two, two releasing claws 351 place between adjacent two lock pins 31 respectively and are positioned at lock pin and keep off protruding 312 below.One end of described return spring 34 constitutes that first return spring colludes 341, the other end constitutes second return spring and colludes 342; Wherein: described first return spring colludes 341 and is placed in the return spring groove 352 passing a pair of first return spring hole 171 and one second return spring hole 353, and described second return spring colludes 342 and places in the spring fixed orifice 16.Described adapter sleeve 38 is installed in the trip lever hole 18 of long flanging 12, offers in the axial centre of adapter sleeve 38 to connect trepanning 381.One end of described trip lever 37 is installed in the connection trepanning 381 of adapter sleeve 38.One end of described spanner 36 is provided with a spanner hole 361, and the other end of spanner 36 is provided with spanner groove 362, and an end of spanner 36 is installed in through spanner hole 361 and separates on the lock dog 35, and the other end of spanner 36 cooperates with trip lever 37 through spanner groove 362.Described pearl frame 4 is made up of ball 41, last ball registration roller 42 and following ball registration roller 43; The ball 41 at last ball registration roller 42 and two ends thereof places respectively by in ball first raceway 111 and the cavity volume that first ball grooves 211 and 221 enclosures of ball the 3rd raceway 121 and the 3rd ball grooves become, and the ball 41 at described ball registration roller 43 down and two ends thereof places respectively by in ball second raceway 112 and second ball grooves 212 and 222 cavity volumes that enclosure becomes of ball the 4th raceway 122 and the 4th ball grooves.Described upper rail 1 slides in corresponding cavity volume through pearl frame 4 and is implemented in moving forward and backward on the lower guideway 2.

please continue with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and combine Fig. 6, the principle of work of summary the utility model: according to general knowledge, automotive seat need be connect by trip lever 37 by a pair of slide rail shown in Figure 6 between the two.The following mounting hole 25 of supposing last mounting hole 14 and/or side mounting hole 15, the lower guideway 2 of upper rail 1 connects with seat frame, the car body of automotive seat respectively and finishes, so, and under normal circumstances; 1) in the time will making the front and back position appropriate change of seat, then trip lever 37 is upwards applied application force, because of trip lever 37 is to be connected with the spanner 36 of blocking device 3; Spanner 36 with separate lock dog 35 and be connected, separate lock dog 35 and be connected with upper rail 1 through return spring 34, the releasing claw 351 of separating lock dog 35 places the lock pin of lock pin 31 to keep off protruding 312 below; Act on lock pin by releasing claw 351 and keep off protruding 312; Drive lock pin 31 and make upward movement, return spring 34 transfers strained condition to by relaxed state, and stage clip 32 also transfers strained condition to by relaxed state simultaneously; At this moment; Lock pin 31 breaks away from locked groove 23, and slide rail becomes previous lockup state (like Fig. 2 or shown in Figure 3) and is released state (as shown in Figure 4), and can regulate this moment to the slide rail front and back position.2) in case the seat front and back position regulate and to finish; When unclamping the application force that is applied on the trip lever 37; Then, make releasing claw 351 and lock pin keep off protruding 312 and break away from because return spring 34 previous energy storage capacities were promptly discharged by wink, and drive is separated lock dog 35 and moved downward; Lock pin 31 moves downward owing to stage clip 32 previous stored energies were promptly discharged by wink; Make lock pin 31 locks advance locked groove 23, slide rail becomes previous released state (as shown in Figure 4) and is lockup state (like Fig. 2 or shown in Figure 3), and this moment, slide rail was in complete lockup state.

In sum, the technical scheme that the utility model provides has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant

Claims

1. a kind of slide rail that is used for automotive seat; Comprise that one is used for being used for connecting with automotive seat and being assigned in upper rail (1) and the blocking device (3) that is used to lock upper rail (1) on the lower guideway (2) through pearl frame (4) cunning with the lower guideway (2), of car floor connection; It is characterized in that: described upper rail (1) is last attachment face (10) formation by the short flanging (11) of short flanging (11), long flanging (12) and connection, long flanging (12); Short flanging (11) end wise is formed with ball first raceway (111) and ball second raceway (112) respectively; Long flanging (12) end wise is formed with ball the 3rd raceway (121) and ball the 4th raceway (122) respectively; The two ends of described ball first raceway (111), ball second raceway (112), ball the 3rd raceway (121) and ball the 4th raceway (122) respectively constitute a pair of first ball defining flange one (1111), the second ball defining flange the one (1121), the 3rd ball defining flange one (1211) and the 4th ball defining flange one (1221); The described attachment face (10) of going up is arranged at intervals with a plurality of first lockpin holes (13) at the nearly medium position of length direction; Described long flanging (12) the nearly medium position of length direction be provided with separate lock dog fixedly ear (17), offer spring fixed orifice (16), offer trip lever hole (18) at an end of length direction at the other end of length direction, fixedly offer the first return spring hole (171) on the ear (17) at the described lock dog of separating; Described lower guideway (2) is by rolling over wall (21), roll over wall (22) and be connected following attachment face (20) formation that length is rolled over wall (21), weak point folding wall (22) with the short of long flanging (12) cooperation with the length of short flanging (11) cooperation; Long folding wall (21) end wise is formed with first ball grooves (211) and second ball grooves (212) respectively; Short folding wall (22) end wise is formed with the 3rd ball grooves (221) and the 4th ball grooves (222) respectively; The two ends of described first ball grooves (211), second ball grooves (212), the 3rd ball grooves (221) and the 4th ball grooves (222) respectively constitute a pair of first ball defining flange two (2111), the second ball defining flange the two (2121), the 3rd ball defining flange two (2211) and the 4th ball defining flange two (2221), and described attachment face (20) down is arranged at intervals with a plurality of locked grooves (23) at the midway location of length direction; Described blocking device (3) comprises lock pin (31), stage clip (32), positioning plate (33), return spring (34), separates lock dog (35), spanner (36), trip lever (37) and adapter sleeve (38); Described positioning plate (33) be positioned at a plurality of first lockpin holes (13) under and be fixed on the attachment face (10); Bottom surface midway location at positioning plate (33) offers a plurality of second lockpin holes (331); The quantity of the quantity of described second lockpin hole (331) and described first lockpin hole (13) is identical and the position is corresponding; Described lock pin (31) is formed with locking face (311) in the lower end of short transverse, midway location convexes with lock pin retaining protruding (312); The quantity of lock pin (31) has three pieces at least; One end of each lock pin (31) is located in first lockpin hole (13); The other end of each lock pin (31) is in that to pass second lockpin hole (331) back corresponding with the locked groove (23) on the lower guideway (2); The quantity of described stage clip (32) is identical with the quantity of lock pin (31); And be set in lock pin (31) respectively and go up and be positioned between lock pin retaining protruding (312) and the last attachment face (10), the described front end of separating lock dog (35) offers one second return spring hole (353) in the middle of being formed with a plurality of releasing claws (351), front end, front bottom end constitutes and the return spring groove (352) of second return spring hole (353) flush, and described releasing claw (351) places between adjacent two lock pins (31) and is positioned at the below that lock pin keeps off protruding (312); One end of described return spring (34) constitutes that first return spring colludes (341), the other end constitutes second return spring and colludes (342); Wherein: described first return spring colludes (341) and is passing the first return spring hole (171) and the second return spring hole (353) is placed in the return spring groove (352), and described second return spring colludes (342) and places in the spring fixed orifice (16), and described adapter sleeve (38) is installed in the trip lever hole (18); Described trip lever (37) is located on the adapter sleeve (38), an end of described spanner (36) with separate that lock dog (35) cooperates, the other end of spanner (36) cooperates with trip lever (37); Described pearl frame (4) is made up of ball (41), last ball registration roller (42) and following ball registration roller (43); The ball (41) at last ball registration roller (42) and two ends thereof places respectively by in ball first raceway (111) and first ball grooves (211) and ball the 3rd raceway (121) and the cavity volume that the 3rd ball grooves (221) institute enclosure becomes, and the ball (41) at described ball registration roller (43) down and two ends thereof places respectively by in ball second raceway (112) and second ball grooves (212) and ball the 4th raceway (122) and the cavity volume that the 4th ball grooves (222) institute enclosure becomes.

2. a kind of slide rail that is used for automotive seat according to claim 1; It is characterized in that ball first raceway (111), ball second raceway (112), ball the 3rd raceway (121), ball the 4th raceway (122) that described upper rail (1) upward forms lay respectively on the different horizontal face; First ball grooves (211), second ball grooves (212), the 3rd ball grooves (221), the 4th ball grooves (222) that described lower guideway (2) go up to form are positioned on the different horizontal face equally, and between ball first raceway (111) and first ball grooves (211), between ball second raceway (112) and second ball grooves (212), between ball the 3rd raceway (121) and the 3rd ball grooves (221) and between ball the 4th raceway (122) and the 4th ball grooves (222) respectively enclosure become to be useful on to hold the cavity volume of pearl frame (4).

3. a kind of slide rail that is used for automotive seat according to claim 1; The last attachment face (10) that it is characterized in that said upper rail (1) the two ends of length direction be arranged at intervals with respectively a plurality of on mounting hole (14), the long flanging (12) of said upper rail (1) is arranged at intervals with a plurality of seat frame bonded assembly side mounting holes of being convenient to automotive seat (15) equally at the two ends of length direction; The following attachment face (20) of said lower guideway (2) is respectively arranged with a plurality of mounting holes (25) down at the two ends of length direction.

4. a kind of slide rail that is used for automotive seat according to claim 1 is characterized in that described positioning plate (33) takes the shape of the letter U, and the both sides of U-shaped open end outwards turn down extension and constitute a pair of spacing lug (332); Corresponding ground; The long folding wall (21) of said lower guideway (2) respectively is provided with a position-limit foot (24) at the two ends of length direction; Through cooperating of a pair of position-limit foot (24) and a pair of spacing lug (332), can control the distance that upper rail (1) moves before and after lower guideway (2) is gone up.

5. a kind of slide rail that is used for automotive seat according to claim 1; It is characterized in that described separate lock dog fixedly ear (17) have a pair ofly, fixedly be provided with one first return spring hole (171) respectively symmetrically on the ear (17) at a pair of lock dog of separating.

6. a kind of slide rail that is used for automotive seat according to claim 1 is characterized in that the quantity of described releasing claw (351) is lacked one than the quantity of lock pin (31).

7. a kind of slide rail that is used for automotive seat according to claim 1 is characterized in that described locking face (311) is inverted cone-shaped.

8. a kind of slide rail that is used for automotive seat according to claim 1; The oblong that is shaped as that it is characterized in that described locked groove (23), and the spacing between the spacing between adjacent two locked grooves (23) and adjacent two lock pins (31) is unequal.

9. a kind of slide rail that is used for automotive seat according to claim 1 is characterized in that the axial centre of described adapter sleeve (38) offers the connection trepanning (381) that is used to install trip lever (37).

10. A kind of slide rail that is used for automotive seat according to claim 1, an end that it is characterized in that described spanner (36) are provided with one and supply to separate the spanner hole (361) that lock dog (35) is installed, and the other end of spanner (36) is provided with the spanner groove (362) that supplies trip lever (37) to install