CN202686000U

CN202686000U - Sliding rail structure of car seat

Info

Publication number: CN202686000U
Application number: CN 201220285796
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: 2012-06-18
Filing date: 2012-06-18
Publication date: 2013-01-23
Anticipated expiration: 2022-06-18

Abstract

A sliding rail structure of a car seat belongs to the technical field of accessories of car seats. According to the sliding rail, an upper guide rail comprises a short folding edge, a long folding edge and an upper installing surface; rolling channels are respectively arranged on the short folding edge and the long folding edge; a first pin locking hole is arranged in the middle of the upper installing surface; an unlocking block fixing lug, a spring fixing hole and an unlocking rod hole are arranged on the long folding edge; a lower guide rail comprises a long folding wall, a short folding wall and a lower installing surface; ball slots are respectively arranged on the long folding wall and the short folding wall; a lock slot is arranged in the middle of the lower installing surface; a locking device comprises at least four lock pins, a press spring, a limiting plate, a return spring, an unlocking block, a wrench, an unlocking rod and a connecting cover; a ball frame comprises a ball, an upper ball positioning roller and a lower ball positioning roller; and the upper ball positioning roller, the lower ball positioning roller and the ball are arranged in a containing cavity which is formed by arranging the roller channels and the ball slots in an encircling manner. The sliding rail structure is high in strength, small in gap, good in synchronism, free from self-locking, flexible to install, few in parts, convenient to assembly and machine, low in cost and wide in application range; and an adjusted step is about 5mm.

Description

The rail structure of automotive seat

Technical field

The utility model belongs to the vehicle body fittings technical field, be specifically related to a kind of be used to being installed in seat seat support and car body between, can suitably adjust the lengthwise position of automotive seat, and the position after adjusting is advanced the rail structure of line-locked 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 mentioned above, must join at automotive seat as this device.At present, the comparatively common slide rail that is applied on the automobile seat on the market, mainly contain three large parts and consist of, namely a lower guideway, that is used for connecting with car floor is used for connecting with automotive seat and is assigned in upper rail and a blocking device that is used for the locking upper rail on the lower guideway by pearl frame cunning.Can obtain detailed understanding in the technical scheme by 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 only is 10～12mm, can finely tune the seat front and back position.But also expose in actual use following problem: 1, because slide rail is that a plurality of lock teeth are locked into the 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 ", 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 to use safety, step pitch only is 10～12mm, therefore can satisfy the driver and passenger does forward and backward adjustment to seat position fine setting requirement, slide rail slides steadily, and the gap is little, integral structure is simple, and cost is low.But also expose in actual use following problem: 1, because the upper rail side is less, can not be as attachment face, to being connected between the seat frame of slide rail and automotive seat having certain limitation; 2, because the locking toothrow places both sides, and corresponding with locked groove, therefore higher to the requirement on machining accuracy of parts.

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

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

Summary of the invention

The purpose of this utility model is the rail structure that a kind of automotive seat will be provided, and not only locking intensity is high, synchronism good for it, little without self-locking, gap, and step pitch further reduces, and a side of upper rail also can be used as attachment face, can realize installing flexibly; Be convenient to simultaneously processing and fabricating, productive costs is low, applied widely.

The purpose of this utility model reaches like this, a kind of rail structure of automotive seat, comprise that one is used for the lower guideway that connects with car floor, one is used for connecting with automotive seat and is assigned in upper rail and a blocking device that is used for the locking upper rail on the lower guideway by pearl frame cunning, be characterized in: described upper rail is by short flanging, long flanging and connect short flanging, the upper attachment face of long flanging consists of, short flanging is formed with respectively ball the first raceway and ball the second raceway in the longitudinal direction, long flanging is formed with respectively ball the 3rd raceway and ball the 4th raceway in the longitudinal direction, described ball the first raceway, ball the second raceway, each formation of the two ends of ball the 3rd raceway and ball the 4th raceway has a pair of the first ball defining flange one, the second ball defining flange one, the 3rd ball defining flange one and the 4th ball defining flange one, described upper attachment face is arranged at intervals with the first lockpin hole more than four and four at the nearly medium position of length direction, described long flanging is provided with fixedly ear of solution lock dog at the nearly medium position of length direction, end at length direction offers the spring fixed orifice, the other end at length direction offers the trip lever hole, described solution lock dog fixedly ear offer the first return spring hole; Described lower guideway is by the long folding wall that cooperates with short flanging, the short folding wall that cooperates with long flanging and is connected the long wall of rolling over, the lower attachment face of short folding wall consists of, long folding wall is formed with respectively the first ball grooves and the second ball grooves in the longitudinal direction, short folding wall is formed with respectively the 3rd ball grooves and the 4th ball grooves in the longitudinal direction, described the first ball grooves, the second ball grooves, each formation of the two ends of the 3rd ball grooves and the 4th ball grooves has a pair of the first ball defining flange two, the second ball defining flange two, the 3rd ball defining flange two and the 4th ball defining flange two, described lower attachment face is arranged at intervals with locked groove more than four and four at the midway location of length direction; Described blocking device comprises lock pin, stage clip, positioning plate, return spring, separate lock dog, spanner, trip lever and adapter sleeve, described positioning plate be positioned at the first lockpin hole more than four under and be fixed on the attachment face, midway location offers the second lockpin hole in the bottom surface of positioning plate, the quantity of the quantity of described the second lockpin hole and described the first lockpin hole is identical and the position is corresponding, described lock pin is formed with the locking face in the lower end of short transverse, it is protruding that midway location convexes with the lock pin gear, the quantity of lock pin has four pieces at least, one end of each lock pin is located in the first lockpin hole, the other end of each lock pin is corresponding with the locked groove on the lower guideway after passing the second lockpin hole, 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 upper attachment face, the front end of described solution lock dog is formed with a plurality of releasing claws, offer one second return spring hole in the middle of the front end, front bottom end consists of the return spring groove mutually concordant with the second return spring hole, described releasing claw places between adjacent two lock pins and is positioned at the protruding below of lock pin gear, one end of described return spring consists of the first return spring hook, the other end consists of the second return spring hook, wherein: described the first return spring is hooked in and passes the first return spring hole and the second return spring hole is placed in the return spring groove, described the second return spring hook places in the spring fixed orifice, described adapter sleeve is installed in the trip lever hole, described trip lever is located on the adapter sleeve, and an end of described spanner cooperates with the solution lock dog, the other end of spanner cooperates with trip lever; Described pearl frame is made of ball, upper ball registration roller and lower ball registration roller, the ball at upper ball registration roller and two ends thereof places respectively by in ball the first raceway and the 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 lower ball registration roller and two ends thereof places respectively by in ball the second raceway and the second ball grooves and ball the 4th raceway and the cavity volume that the 4th ball grooves institute enclosure becomes.

In a specific embodiment of the present utility model, ball the first raceway that forms on the described upper rail, ball the second raceway, ball the 3rd raceway, ball the 4th raceway lays respectively on the different horizontal surfaces, the first ball grooves that forms on the described lower guideway, the second ball grooves, the 3rd ball grooves, the 4th ball grooves is positioned on the different horizontal surfaces equally, and between ball the first raceway and the first ball grooves, between ball the second raceway and the 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.

In another specific embodiment of the present utility model, the upper attachment face of described upper rail the two ends of length direction be arranged at intervals with respectively a plurality of on mounting hole, the long flanging of described upper rail is arranged at intervals with a plurality of side mounting holes of being connected with the seat frame of automotive seat be convenient to equally at the two ends of length direction; The lower attachment face of described lower guideway is respectively arranged with a plurality of lower mounting holes at the two ends of length direction.

In another specific embodiment of the present utility model, described positioning plate takes the shape of the letter U, and the both sides of U-shaped open end outwards turn down extends and consist of a pair of spacing lug is arranged; Correspondingly, the long folding wall of described lower guideway respectively is provided with a position-limit foot at the two ends of length direction, by cooperating of a pair of position-limit foot and a pair of spacing lug, can control upper rail on lower guideway before and after the distance of movement.

In another specific embodiment of the present utility model, described solution lock dog fixedly ear has a pair ofly, fixedly is provided with symmetrically respectively one first return spring hole on the ear at a pair of solution lock dog.

In of the present utility model and then specific embodiment, the quantity of described releasing claw is lacked one than the quantity of lock pin.

More of the present utility model and in specific embodiment, described locking face is inverted cone-shaped.

In again of the present utility model and then specific embodiment, 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.

More of the present utility model and in specific embodiment, the axial centre of described adapter sleeve offers for the connection trepanning that trip lever is installed.

In more of the present utility model and then specific embodiment, an end of described spanner is provided with one for the spanner hole of separating lock dog and installing, and the other end of spanner is provided with the spanner groove of installing for trip lever.

The utility model is because after adopting said structure, one of advantage that has, because the cavity volume for holding the pearl frame that ball the first raceway that forms on upper rail and the lower guideway and the first ball grooves, ball the second raceway and the second ball grooves, ball the 3rd raceway and the 3rd ball grooves, ball the 4th raceway become with the 4th ball grooves institute enclosure is in respectively four different horizontal surfaces, formed the height state, when therefore slide rail was subjected to External Force Acting, the intensity of slide rail was high; Advantage two, because after lock pin passed the first lockpin hole and the second lockpin hole location, the locking face that has on the lock pin was locked into locked groove, and the locking face is inverted cone-shaped again, therefore, when the locking face of inverted cone-shaped cooperated locking with locked groove, the slide rail gap was little; Three of advantage, because lock pin has four pieces at least, spacing between adjacent lock pin is not identical with spacing between adjacent locked groove, therefore slide rail is when locking, several pieces of lock pins can all not be locked in the locked groove, 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 a lock pin, the locking face is in homonymy or the both sides of different locked grooves, simultaneously, trip lever passes in the trip lever hole that adapter sleeve places upper rail, and corresponding trip lever hole has become the centre of gration of trip lever, therefore, the locking of slide rail, release, slip synchronism in front and back is good, and without locking phenomenon, simultaneously, the step pitch that slide rail is regulated is little, be about 5mm, can realize better the fine setting operation of slide rail front and back position; Advantage four, owing to offering respectively side mounting hole and upper mounting hole on the long flanging of upper rail and the upper attachment face, therefore, a side of upper rail (i.e. long flanging) also can be used as attachment face, can realize the flexible installation of slide rail; Advantage five, 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 six, applied widely, can realize with any seat between be connected.

Description of drawings

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

Fig. 2 is that blocking device described in the utility model is at the first fit structure schematic diagram of lockup state.

Fig. 3 is that blocking device described in the utility model is at the second fit structure schematic diagram of lockup state.

Fig. 4 is that blocking device described in the utility model is at the third fit structure schematic diagram of lockup state.

Fig. 5 is that blocking device described in the utility model is at the 4th kind of fit structure schematic diagram of lockup state.

Fig. 6 is that blocking device described in the utility model is at the structural representation of released state.

Fig. 7 is cross-sectional view of the present utility model.

Fig. 8 is the structural representation that is directed to a pair of slide rail described in the utility model that automotive seat are equipped with.

Among the figure: 1. upper rail, 10. go up attachment face, 11. short flanging, 111. ball the first raceway, 1111. the first ball defining flange one, 112. ball the 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. the first lockpin hole, 14. upper 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. length are rolled over 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 gear, 33. positioning plates, 331. second lockpin holes, 332. spacing lugs, 34. return springs, 341. first return spring hooks, 342. second return spring hooks, 35. are separated lock dogs, 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 are connected trepannings; 4. ball registration roller, 43. times ball registration rollers on pearl frame, 41. balls, 42..

The specific embodiment

For the inspector that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates by reference to the accompanying drawings in the mode of embodiment below, but all be not restriction to the utility model scheme to the description of embodiment, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

Please refer to Fig. 1 and in conjunction with Fig. 2 to Fig. 7, a kind of slide rail for automotive seat of the utility model comprises that a lower guideway 2, that is used for connecting with car floor is used for the automotive seat connection and by pearl frame 4 sliding upper rail 1 and blocking devices 3 that are used for locking upper rail 1 that are assigned on the lower guideway 2.Described upper rail 1 is by short flanging 11, long flanging 12 and connect short flanging 11, the upper attachment face 10 of long flanging 12 consists of, short flanging 11 is formed with respectively ball the first raceway 111 and ball the second raceway 112 in the longitudinal direction, long flanging 12 is formed with respectively ball the 3rd raceway 121 and ball the 4th raceway 122 in the longitudinal direction, and described ball the first raceway 111, ball the second raceway 112, ball the 3rd raceway 121 lays respectively on the different horizontal surfaces with ball the 4th raceway 122, at ball the first raceway 111, ball the second raceway 112, each consists of a pair of the first ball defining flange 1 that is useful on 4 position-limiting actions of pearl frame the two ends of ball the 3rd raceway 121 and ball the 4th raceway 122, a pair of the second ball defining flange 1, a pair of the 3rd ball defining flange 1 and a pair of the 4th ball defining flange 1, described upper attachment face 10 is arranged at intervals with the first lockpin hole 13 more than four and four at the nearly medium position of length direction, the quantity of described the first lockpin hole 13 can be four, five, six etc., be preferably in the present embodiment four, described upper attachment face 10 is arranged at intervals with respectively a plurality of upper mounting holes 14 of being convenient to install at the two ends of length direction, the quantity of upper mounting hole 14 is unrestricted, its shape is also unrestricted, can be circular, hexagon, quincunx etc., be preferably circle in the present embodiment.Described long flanging 12 is provided with fixedly ear 17 of solution lock dog at the nearly medium position of length direction, end at length direction offers spring fixed orifice 16, the other end at length direction offers trip lever hole 18, described solution lock dog fixedly ear 17 has a pair of, fixedly be provided with symmetrically respectively one first return spring hole 171 on the ear 17 at a pair of solution lock dog, described long flanging 12 also is arranged at intervals with a plurality of side mounting holes 15 of being connected with the seat frame of automotive seat be convenient at the two ends of length direction, the quantity of side mounting hole 15 is unrestricted, its shape is also unrestricted, can be circular, hexagon, quincunx etc., be preferably hexagon in the present embodiment.Described lower guideway 2 is by the long folding wall 21 that cooperates with short flanging 11, the short folding wall 22 that cooperates with long flanging 12 and is connected the long wall 21 of rolling over, the lower attachment face 20 of short folding wall 22 consists of, long folding wall 21 is formed with respectively the first ball grooves 211 and the second ball grooves 212 in the longitudinal direction, short folding wall 22 is formed with respectively the 3rd ball grooves 221 and the 4th ball grooves 222 in the longitudinal direction, described the first ball grooves 211, the second ball grooves 212, the 3rd ball grooves 221 is positioned on the different horizontal surfaces equally with the 4th ball grooves 222, and between ball the first raceway 111 and the first ball grooves 211, between ball the second raceway 112 and the 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, at the first ball grooves 211, the second ball grooves 212, each consists of a pair of the first ball defining flange 2 2111 that is useful on 4 position-limiting actions of pearl frame the two ends of the 3rd ball grooves 221 and the 4th ball grooves 222, a pair of the 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, described lower attachment face 20 is arranged at intervals with locked groove 23 more than four and four at the midway location of length direction, the shape of locked groove 23 is unrestricted, in the present embodiment, be preferably oblong, described lower attachment face 20 is respectively arranged with a plurality of lower mounting holes 25 of being convenient to install at the two ends of length direction, 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 for control upper rail 1 mobile distance in 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 extends and consists of a pair of spacing lug 332 is arranged, positioning plate 33 be positioned at the first lockpin hole 13 more than four under and be fixed on the upper attachment face 10 by a pair of spacing lug 332, the lateral surface of a pair of spacing lug 332 is used for interacting and a position-limiting action with the long a pair of position-limit foot 24 of rolling on the wall 22 of lower guideway 2, midway location offers the second lockpin hole 331 in the U-shaped bottom surface of positioning plate 33, and the quantity of the quantity of described the second lockpin hole 331 and described the 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 described lock pin 31 has four pieces at least, it can be five pieces, six pieces etc., in the present embodiment, be preferably four pieces, one end of each lock pin 31 is located in the first lockpin hole 13, the other end of each lock pin 31 is corresponding with the locked groove 23 on the lower guideway 2 after passing the second lockpin hole 331, and the spacing between the spacing between adjacent two lock pins 31 and adjacent two locked grooves 23 is unequal, in the present embodiment, preferred scheme is that spacing between adjacent two locked grooves 23 is greater than the spacing between adjacent two lock pins 31.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 upper attachment face 10 between.The front end of described solution lock dog 35 is formed with and offers one second return spring hole 353, front bottom end in the middle of a plurality of releasing claws 351, front end and consist of the return spring groove 352 mutually concordant with the second return spring hole 353 arranged, the quantity of described releasing claw 351 is lacked one than the quantity of lock pin 31, in the present embodiment be three, three releasing claws 351 place respectively between adjacent two lock pins 31 and are positioned at lock pin and keep off protruding 312 below.One end of described return spring 34 consists of the first return spring hook 341, the other end consists of the second return spring hook 342, wherein: described the first return spring hook 341 is placed in the return spring groove 352 passing a pair of the first return spring hole 171 and one second return spring hole 353, and described the second return spring hook 342 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 by spanner hole 361 and separates on the lock dog 35, and the other end of spanner 36 cooperates with trip lever 37 by spanner groove 362.Described pearl frame 4 is made of ball 41, upper ball registration roller 42 and lower ball registration roller 43, the ball 41 at upper ball registration roller 42 and two ends thereof places respectively by in ball the first raceway 111 and the cavity volume that the 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 lower ball registration roller 43 and two ends thereof places respectively by in ball the second raceway 112 and the 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 by pearl frame 4 and realizes moving forward and backward on lower guideway 2.

Please continue to sketch principle of work of the present utility model referring to figs. 1 through Fig. 7 and in conjunction with Fig. 8: according to general knowledge, automotive seat need to by a pair of slide rail shown in Figure 8, be connect by trip lever 37 between the two.Suppose upper mounting hole 14 and/or the side mounting hole 15 of upper rail 1, the lower mounting hole 25 of lower guideway 2 respectively with the seat frame of automotive seat, car body connects complete, so, 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 trip lever 37 is to be connected with the spanner 36 of blocking device 3, spanner 36 is connected with solution lock dog 35, separating lock dog 35 is connected with upper rail 1 by 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, band pendulum lock pin 31 is made upward movement, return spring 34 transfers strained condition to by relaxed state, stage clip 32 also transfers strained condition to by relaxed state simultaneously, and at this moment, lock pin 31 breaks away from locked groove 23, slide rail becomes previous lockup state (such as the lockup state of Fig. 2 or Fig. 3 or Fig. 4 or four kinds of diverse locations shown in Figure 5) and be released state (as shown in Figure 6), can regulate the slide rail front and back position at this moment.2) in case the seat front and back position is regulated complete, when unclamping the application force that is applied on the trip lever 37, then namely discharged by wink owing to return spring 34 previous energy storage capacities, driving solution lock dog 35 moves downward, making releasing claw 351 and lock pin keep off protruding 312 breaks away from, lock pin 31 moves downward owing to stage clip 32 previous stored energies were namely discharged by wink, make lock pin 31 be locked into locked groove 23, slide rail becomes previous released state (as shown in Figure 6) and is lockup state (such as the lockup state of Fig. 2 or Fig. 3 or Fig. 4 or four kinds of diverse locations shown in Figure 5), and slide rail is in complete lockup state at this moment.

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 rail structure of automotive seat, comprise that one is used for the lower guideway (2) that connects with car floor, one is used for the automotive seat connection and by sliding upper rail (1) and the blocking device (3) that is used for locking upper rail (1) that is assigned on the lower guideway (2) of pearl frame (4), it is characterized in that: described upper rail (1) is by short flanging (11), long flanging (12) and connect short flanging (11), the upper attachment face (10) of long flanging (12) consists of, short flanging (11) is formed with respectively ball the first raceway (111) and ball the second raceway (112) in the longitudinal direction, long flanging (12) is formed with respectively ball the 3rd raceway (121) and ball the 4th raceway (122) in the longitudinal direction, described ball the first raceway (111), ball the second raceway (112), each formation of the two ends of ball the 3rd raceway (121) and ball the 4th raceway (122) has a pair of the first ball defining flange one (1111), the second ball defining flange one (1121), the 3rd ball defining flange one (1211) and the 4th ball defining flange one (1221), described upper attachment face (10) is arranged at intervals with the first lockpin hole (13) more than four and four at the nearly medium position of length direction, described long flanging (12) is provided with fixedly ear (17) of solution lock dog at the nearly medium position of length direction, end at length direction offers spring fixed orifice (16), the other end at length direction offers trip lever hole (18), described solution lock dog fixedly ear (17) offer the first return spring hole (171); Described lower guideway (2) is by the long folding wall (21) that cooperates with short flanging (11), the short folding wall (22) that cooperates with long flanging (12) and is connected the long wall (21) of rolling over, the lower attachment face (20) of short folding wall (22) consists of, long folding wall (21) is formed with respectively the first ball grooves (211) and the second ball grooves (212) in the longitudinal direction, short folding wall (22) is formed with respectively the 3rd ball grooves (221) and the 4th ball grooves (222) in the longitudinal direction, described the first ball grooves (211), the second ball grooves (212), each formation of the two ends of the 3rd ball grooves (221) and the 4th ball grooves (222) has a pair of the first ball defining flange two (2111), the second ball defining flange two (2121), the 3rd ball defining flange two (2211) and the 4th ball defining flange two (2221), described lower attachment face (20) is arranged at intervals with locked groove (23) more than four and four at the midway location of length direction; Described blocking device (3) comprises lock pin (31), stage clip (32), positioning plate (33), return spring (34), separate lock dog (35), spanner (36), trip lever (37) and adapter sleeve (38), described positioning plate (33) be positioned at the first lockpin hole (13) more than four under and be fixed on the attachment face (10), bottom surface midway location at positioning plate (33) offers the second lockpin hole (331), the quantity of the quantity of described the second lockpin hole (331) and described the 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 gear protruding (312), the quantity of lock pin (31) has four pieces at least, one end of each lock pin (31) is located in the first lockpin hole (13), the other end of each lock pin (31) is corresponding with the locked groove (23) on the lower guideway (2) after passing the second lockpin hole (331), the quantity of described stage clip (32) is identical with the quantity of lock pin (31), and be set in respectively on the lock pin (31) and be positioned at lock pin and keep off between protruding (312) and the upper attachment face (10), the front end of described solution lock dog (35) is formed with a plurality of releasing claws (351), offer one second return spring hole (353) in the middle of the front end, front bottom end consists of the return spring groove (352) mutually concordant with the second return spring hole (353), described releasing claw (351) places between adjacent two lock pins (31) and is positioned at the below of lock pin gear protruding (312), one end of described return spring (34) consists of the first return spring hook (341), the other end consists of the second return spring hook (342), wherein: described the first return spring hook (341) is passing the first return spring hole (171) and the second return spring hole (353) is placed in the return spring groove (352), described the second return spring hook (342) places in the spring fixed orifice (16), described adapter sleeve (38) is installed in the trip lever hole (18), described trip lever (37) is located on the adapter sleeve (38), and an end of described spanner (36) cooperates with solution lock dog (35), the other end of spanner (36) cooperates with trip lever (37); Described pearl frame (4) is by ball (41), upper ball registration roller (42) and lower ball registration roller (43) consist of, the ball (41) at upper ball registration roller (42) and two ends thereof places respectively by in ball the first raceway (111) and the 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 lower ball registration roller (43) and two ends thereof places respectively by in ball the second raceway (112) and the second ball grooves (212) and ball the 4th raceway (122) and the cavity volume that the 4th ball grooves (222) institute enclosure becomes.

2. The rail structure of automotive seat according to claim 1, it is characterized in that upper ball the first raceway (111) that forms of described upper rail (1), ball the second raceway (112), ball the 3rd raceway (121), ball the 4th raceway (122) lays respectively on the different horizontal surfaces, upper the first ball grooves (211) that forms of described lower guideway (2), the second ball grooves (212), the 3rd ball grooves (221), the 4th ball grooves (222) is positioned on the different horizontal surfaces equally, and between ball the first raceway (111) and the first ball grooves (211), between ball the second raceway (112) and the 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. The rail structure of automotive seat according to claim 1, the upper attachment face (10) that it is characterized in that described 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 described upper rail (1) is arranged at intervals with a plurality of side mounting holes (15) of being connected with the seat frame of automotive seat be convenient to equally at the two ends of length direction; The lower attachment face (20) of described lower guideway (2) is respectively arranged with a plurality of lower mounting holes (25) at the two ends of length direction.

4. The rail structure of 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 extends and consist of a pair of spacing lug (332) is arranged; Correspondingly, the long folding wall (21) of described lower guideway (2) respectively is provided with a position-limit foot (24) at the two ends of length direction, by cooperating of a pair of position-limit foot (24) and a pair of spacing lug (332), can control upper rail (1) mobile distance before and after lower guideway (2) is upper.

5. The rail structure of automotive seat according to claim 1, it is characterized in that described solution lock dog fixedly ear (17) have a pair ofly, fixedly be provided with symmetrically respectively one first return spring hole (171) on the ear (17) at a pair of solution lock dog.

6. The rail structure of 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. The rail structure of automotive seat according to claim 1 is characterized in that described locking face (311) is inverted cone-shaped.

8. The rail structure of 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. The rail structure of automotive seat according to claim 1 is characterized in that the axial centre of described adapter sleeve (38) offers for the connection trepanning (381) that trip lever (37) is installed.

10. The rail structure of automotive seat according to claim 1, an end that it is characterized in that described spanner (36) is provided with one for the spanner hole (361) of separating lock dog (35) installation, and the other end of spanner (36) is provided with the spanner groove (362) of installing for trip lever (37)