KR101278209B1 - Seat slide rail - Google Patents

Abstract

The seat slide rail includes an inner slideway, an outer slideway slidably coupled with the inner slideway, and a spacing assembly provided between the inner slideway and the outer slideway. The seat slide rail further comprises a locking assembly provided within the space of the inner slideway, the locker of the locking assembly being hinged to the sidewall of the inner slideway at its central portion and located at the sidewall of the inner slideway. The lock drive part which protruded to the lateral direction from the opening is provided in one end. In the longitudinal direction of the slide rail, the lock drive part has a lock hole or locks, and the outer slideway has a lock hole corresponding to a lock hole in the lock drive part or a lock hole corresponding to those on the lock drive part. do. The lock drive or the outer slideway has a plurality of the locks or a plurality of the lock holes, the locker locking the lock and the inner to lock a plurality of relative positions between the inner slideway and the outer slideway. Rotate around the hinge joint between slideways. An elastic to provide a locking pretightening force is provided between the lock and the inner slideway. The present invention has the advantages of small appearance size and low manufacturing cost and can be applied to various seats.

Description

Seat slide rail {SEAT SLIDE RAIL}

The present invention relates to a technique for adjusting the front and rear positions of a seat, in particular a seat slide rail.

Seat slide rails are used to connect the seat of the vehicle and the body of the vehicle. Currently, the driver seats and passenger seats provided in the front row of the vehicle can move mostly forward and backward depending on the needs of the driver or passengers seeking comfort. Particularly in the case of the driver, the front and rear positions of the driver's seat must be adjusted according to the driver's physique so that the driver can operate the steering wheel, the pedal, the shift lever and the other operating devices.

Conventionally, the adjustment device of the seat slide rail mainly adopts a step sliding adjustment structure consisting of a lockpin and a lock body. The step sliding adjustment structure can realize step adjustment for forward movement or backward movement of the seat, whereby the seat can be quickly adjusted to a predetermined lock-up position. With regard to the overall performance of the adjustment device, this device can firmly fix the seat and has excellent safety. Even if the vehicle runs for a long time, the seat does not involve a change of position and the teeth do not loosen.

However, the conventional adjusting device for the step sliding lock has the following problems due to the limitation of its own structural principle. The structure of the adjusting device is complicated, the lock-up machanism has a large volume, the sliding is not smooth, the cost is high, and the like.

In view of the above problems, it is urgent to optimize the design of the seat slide rail to overcome the drawbacks existing in the prior art.

The present invention aims to increase seat comfort by providing a seat slide rail having an optimized structure that can overcome the above-mentioned drawbacks.

The present invention provides a seat slide rail. The seat slide rails,

An internal slideway for connecting the seat bottom;

An outer slideway connecting the bottom of the vehicle body and slidably coupled to the inner slideway; And

And a spacing assembly provided with rollers and provided between the inner slideway and the outer slideway,

The seat slide rail further comprises a lock assembly provided within the space of the inner slideway, the lock assembly comprising:

A locker hinged to a side wall of the inner slideway at its central portion; And

And a resilient magnet provided between the lock and the inner slideway to provide a lock pretightening force.

The locker has a locking drive at one end that protrudes laterally from an opening in the sidewall of the inner slideway; In the longitudinal direction of the slide rail, the lock drive part has a lock hole or locks, and the outer slideway has a lock hole corresponding to a lock hole in the lock drive part or a lock hole corresponding to those on the lock drive part. and; The lock drive or the outer slideway has a plurality of the locks or a plurality of the lock holes, the locker locking the lock and the inner to lock a plurality of relative positions between the inner slideway and the outer slideway. Rotate around the hinge joint between slideways.

Preferably, the locking drive unit has the locking holes on both sides, and the outer slideway has a plurality of corresponding locking protrusions protruding downward on both sides.

Preferably, the locking drive unit includes a plurality of locking holes in the longitudinal direction of the slide rail.

Preferably, the locking drive unit has a position limiting groove extending in the longitudinal direction of the slide rail on the upper surface, the elastic member is a spring plate, one end of the spring plate is fixedly connected to the inner slideway, and vice versa A stage is located in the position limiting groove.

Preferably, the locking assembly further comprises an actuation lever, one end of the actuation lever being connected to the other end of the lock, the opposite end protruding from the space of the inner slideway, and the actuation lever being the lock holes The locker can be rotated about the inner joint about the hinge joint until it is released from the corresponding locks to unlock the slide rails.

Preferably, the locking lever has an axial position limiting surface extending outwardly, the locking assembly further comprising a spring plate, one end of the spring plate being fixedly connected to the inner slideway, the opposite end of which is circular Bent to adjoin the position limiting surface.

" 형태의 단면을 갖고, 상기 내부 슬라이드웨이의 양 측벽들의 끝들은 외측으로 굽어진 후 위로 굽어져 상기 간격유지 조립체들의 롤러들에 인접한다. Preferably, the outer slideway has a cross section of approximately "U" shape, and ends of both sidewalls of the outer slideway are bent inward and then bent down to form symmetrical receptacles for receiving the spacing assemblies. and; The inner slideway is approximately Chinese "

Having a cross section, the ends of both sidewalls of the inner slideway bend outward and then bend upward to adjoin the rollers of the spacing assemblies.

Preferably, the spacing assembly includes upper row rollers and lower row rollers in the longitudinal direction of the slide rail, wherein the upper row rollers and the lower row rollers are provided at the upper outer corner and the lower outer corner of the receptacle, respectively. .

Preferably, a bush is provided between the actuation lever and the inner slideway.

Preferably, each of the inner slideway and the outer slideway has position limiting projections that limit extreme positions, the inner slideway being reduced or stretched relative to the outer slideway.

In a seat employing a seat slide rail according to the present invention, each of the inner and outer slideways of the seat is fixedly connected to the bottom of the seat and the bottom of the vehicle body after assembly of the seat so that the seat can move back and forth with respect to the floor of the vehicle body. do. A locking assembly of the seat slide rail of the present invention is provided in the space of the inner slideway. The locker of the lock assembly is hinged to the sidewall of the inner slideway, and the lock drive of the locker projects from the sidewall of the inner slideway to achieve locking in conjunction with the outer slideway. When the locker rotates with respect to the inner slideway, the locking holes and the locks provided on the locker and the inner slideway respectively switch between two operating positions, namely the engaged lock position and the disengaged position, thereby the inner slideway and A plurality of relative positions between the outer slideways are locked. The solution, on the other hand, uses a lock pretightening force exerted by an elastomer so that the lock holes and the locks are in the normally locked state. That is, the lock holes and locks are normally in the locked state of engagement. When it is necessary to adjust the front and rear positions of the seat, the locker rotates about the inner slideway until the lock holes and locks are in the disengaged state. In the disengaged state, the inner slideway can slide back and forth with respect to the outer slideway to an ideal relative position. When the lock holes are parallel with the corresponding locks, the lock rotates inversely with respect to the inner slideway such that the lock holes and locks are in a combined lock ecology. This fixes the relative position between the inner slideway and the outer slideway. Compared with the prior art, this solution has the following advantages: The structure of the seat slide rail is simple and the movement of the seat slide rail is stable. On the one hand, the locking assembly is provided in the space of the inner slideway, which is an efficient use of the inner space of the inner slideway and reduces the contour size of the locking mechanism, thereby reducing the cost of manufacturing the product and The versatility of the locking assemblies that can be matched is increased. On the other hand, the locking assembly does not spatially interfere with the spacing assembly, which can ensure a smooth slide of the inner slideway with respect to the outer slideway.

In a preferred solution of the invention, one end of the actuating lever is connected to the lock and the opposite end protrudes from the space of the inner slideway. When the operator exerts a force on the actuation lever to overcome the pretightening force of the elastomer, the actuation lever is internally about the hinge joint until the locking holes are separated from the corresponding locks to unlock the slide rails. Rotate about the slideway. When the actuating lever is released after the front and rear positions of the seat are adjusted, the lock can be returned to the locked actuation position due to the action of the elastic, which has improved operability.

In another solution of the invention, the actuation lever can be assembled to the lock after the slide rail body is assembled. When one end of the actuating lever is inserted into the inner slideway from the outside of the inner slideway, the circularly curved portion of the spring plate is pressed outward and elastically deformed. The spring plate then returns to its original position after the position limiting surface of the actuating lever has reached a predetermined position. At this time, one end surface of the circularly curved portion of the spring plate is adjacent to the position limiting surface of the actuation lever to prevent the actuation lever from being accidentally separated from the inner slideway. In the split type design, the contour size of the slide rail body is reduced and the slide rail is easily assembled. The actuation lever has better assembly performance since the seat can even be assembled after the entire vehicle has been assembled.

The seat slide rail of the present invention can be applied to various seats, in particular vehicle seats, in which the front and rear positions can be adjusted.

1 illustrates a seat slide rail in accordance with certain embodiments.
Fig. 2 is a cross-sectional view taken along the line AA of Fig.
3 is an exploded view of the seat slide rail shown in FIG.
FIG. 4 is an assembly view between the inner slideway and the locking assembly as seen from the opposite direction of FIG. 3.
5 is an assembly view between two spring plates, the lock and the actuating lever in a particular embodiment.
6 is an exploded view of the assembly shown in FIG. 5.
7 is a cross-sectional view of the seat slide rail in normal state.
8 is a cross-sectional view of the seat slide rail in an unlocked state.

The idea of the present invention is to provide a seat slide rail with an optimized structure to ensure smooth slide of the inner slideway with respect to the outer slideway while efficiently controlling the cost of manufacturing the product. Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 shows a seat slide rail according to this embodiment.

The slide rail includes an inner slideway 10 and an outer slideway 20. As in the prior art, the inner slideway 10 is used to be connected to a seat base (not shown), and the outer slideway 20 is used to be connected to a floor of a vehicle body (not shown). The inner slideway is coupled to the outer slideway so as to be slidable, thereby allowing the seat to move back and forth with respect to the vehicle body. 2 is a cross-sectional view taken along the line A-A of FIG. 1, and FIG. 3 is an exploded view of the seat slide rail shown in FIG.

2 and 3, a retainer assembly 40 is provided between the inner slideway 10 and the outer slideway 20 and includes a plurality of rollers at predetermined intervals. The plurality of rollers are respectively mounted between the inner slideway 10 and the outer slideway 20 and adjacent to both the inner slideway and the outer slideway to reduce sliding friction between the inner slideway and the outer slideway. It is mounted in the form.

In this solution, a lock-up assembly 30 comprising a lock member 31 and an elastic component is provided in the space of the inner slideway 10.

The lock 31 is hinged to the inner slideway 10 at its central portion. In particular, as shown in FIG. 4, the locker 31 may form an axial-hole coupling with the hole 11 in the sidewall of the inner slideway 10 via a cylindrical boss 311. This allows the lock 31 to rotate about a hinged joint. FIG. 4 is an assembly view between the inner slideway 10 and the locking assembly 30, viewed from the opposite direction to FIG. Of course, the bosses and holes may be provided in reverse as long as they meet the operating requirements.

The lock relationship between the locker 31 and the outer slideway 20 is formed in a lock-up cooperation portion 312 provided at the end of the locker 31. The lock driving part 312 protrudes laterally from the opening 13 provided in the side wall of the inner slideway 10. The lock driver 312 has a lock-up hole 3121, and the outer slideway 20 has a plurality of lock-up teeth 21. The plurality of locking teeth 21 are provided in the longitudinal direction of the slide rail and correspond to the locking holes 3121 in the lock driving unit 312. The engagement between the lock hole 3121 and the other lock teeth 21 may define different slide positions. The lock driver 312 may also be provided with a plurality of lock holes 3121 (not shown). That is, the coupling between the locking teeth 21 and the other locking holes 3121 on the outer slideway 20 may define different slide positions. Therefore, when the lock 31 rotates about the hinge joint between the lock and the inner slideway 10, the lock teeth 21 are engaged with the lock holes 3121 or separated from the lock holes 3121. Various relative positions between the inner slideway 10 and the outer slideway 20 will be achieved. Of course, the height of the opening 13 provided in the side wall of the inner slideway 10 satisfies the requirement for the locking drive 312 to swing during the transition between the engagement lock operation position and the release release operation position. shall. Note that, in the present solution, the main structural relationships between the inner slideway, the outer slideway and the spacing assembly, and the operating structural relationship between the locking drive 312 and the outer slideway 20 are asymmetrical or symmetrical. Can be designed in a way. It is clear that symmetrical design is optimal.

As shown, the lock driver 312 has three lock holes 3121 on each side, and these lock holes are locked to increase the locking safety between the lock driver 312 and the external slideway 20. It is provided at the same interval as the interval of 21. Of course, three or more locking holes may be provided if the spatial length is sufficient.

In fact, the lock holes and locks in the lock relationship may be provided inversely between the lock drive 312 and the outer slideway 20. That is, the lock holes may be provided in the outer slideway, and the lock holes may be provided on the lock driver. As long as these locking relationships can realize the switching between the engaged locking position and the disengaging position by the rotation of the lock 31, any locking relationship between the locking holes and the locks falls within the protection scope of the present invention.

The elastomer is provided between the lock 31 and the inner slideway 10. The elastomer provides a lock-up pre-tightening force to the locker 31 such that the lock holes 3121 and the locks 21 are in the normally locked state. Compared with the prior art, the locking assembly 30 of the present solution is provided in the space of the inner slideway 10, which effectively utilizes the inner space of the slide rail and reduces the contour size of the slide rail. The cost of manufacturing the product is therefore reduced. On the other hand, the locking assembly 30 does not spatially interfere with the spacing assembly, which ensures that the inner slideway 10 can slide smoothly with respect to the outer slideway 20.

It is to be noted that the elastomer for applying the pretightening force can be realized in several ways. The elastic rubber member can simply realize the pretightening. In the case where there is a limitation due to the outer size and the assembly space as described above, it is preferable that the elastic member of the present solution is in particular a spring plate 32 provided along the longitudinal direction of the slide rail, as in FIGS. 5 and 6. . FIG. 5 is an assembled view between two spring plates, the lock and the actuating lever in a particular embodiment, and FIG. 6 is an assembled exploded view of the configurations shown in FIG. 5.

The spring plate 32 is generally provided in a bent form to improve the function. As shown, the spring plate 32 is fixedly connected to the inner slideway 10 at one end thereof and adjacent to the central portion of the locking drive 312 at the opposite end 321, thereby locking holes. 3121 and locks It can be ensured that they are placed in a normally stable locked state. In order to prevent the spring plate 32 from escaping from the state adjacent to the lock driving unit 312 when a force is applied, the upper surface of the lock driving unit 312 has a position limiting groove extending in the longitudinal direction of the slide rail ( A groove 3122 is formed, and the opposite end 321 of the spring plate 32 is inserted into the position limiting groove 3122 such that the lateral movement of the spring plate 32 is limited.

5 and 6, the spring plate 32 has a side flange 322 on one side of the locker opposite to the boss 311. In order to prevent the boss 311 of the lock 31 from being released from the hole 11 of the inner slideway 10 during use and operation, the flange 322 is formed on the inner wall of the lock 31. 313). On the other hand, the lateral movement of the lock 31 during the locking process is prevented.

" 형태의 단면을 갖고, 상기 내부 슬라이드웨이의 양 측벽들의 끝은 외측으로 굽어진 후 위로 굽어지고, 상기 롤러들 각각에 인접하는 방식으로 간격유지 조립체들(40)의 롤러들과 연동한다. 각 간격유지 조립체(40)는 슬라이드 레일의 길이 방향으로 윗줄 롤러들과 아랫줄 롤러들을 구비한다. 그리고 윗줄 롤러들과 아랫줄 롤러들은 각각 상기 수용부의 윗측 외부 코너 및 아랫측 외부 코너에 제공된다. 양측의 상기 간격유지 조립체들(40)은 총 네 줄의 롤러들을 포함한다. 이러한 유형의 좌석 슬라이드 레일은 우수한 안정성을 갖고, 부드럽게 슬라이드할 수 있다.The slide rail should be limited to its maximum contour size as long as the basic connection requirements are met. In particular, the inner slideway 10 and the outer slideway 20 are of different structures and are formed by different techniques. For example by forming a sheet material. In particular, as shown in FIG. 2, the outer slideway 20 in the present solution has a cross section of approximately “U” shape, the ends of both sidewalls of which are bent inwardly and then bent downwards to maintain the spacing assembly. Form symmetric receptacles to receive the field 40. Accordingly, the inner slideway 10 is approximately Chinese "

Having a cross section, the ends of both sidewalls of the inner slideway bend outwardly and then bent upwards and interlock with the rollers of the spacing assemblies 40 in a manner adjacent to each of the rollers. The spacing assembly 40 has upper row rollers and lower row rollers in the longitudinal direction of the slide rail, and the upper row rollers and the lower row rollers are provided at the upper outer corner and the lower outer corner of the receptacle, respectively. The spacing assemblies 40 of comprise a total of four rows of rollers This type of seat slide rail has excellent stability and can slide smoothly.

As shown, the retainer of each spacing assembly 40 includes small steel balls 43 on the top row and large steel balls 42 on the bottom row. The small steel balls 43 are provided in the upper outer corner of the receiving portion. That is, the small steel balls 43 are located at the rounded corners 24 above the inner wall of the outer slideway 20. The large steel balls 42 are provided at the bottom outer corner of the receptacle. That is, the large steel balls 42 are located at the rounded corners 23 at the bottom of the inner wall of the outer slideway 20. At the same time, the large steel balls 42 and the small steel balls 43 are adjacent to the rounded corner 15 and the outer wall 16 formed after the ends of both side walls of the inner slideway 10 are bent outward and up, respectively. This allows the inner slideway to slide relative to the outer slideway.

2 and 3, the plurality of locking protrusions 21 protruding downward are formed at the ends of both inner side surfaces of the outer slideway 20 to interlock with the locking holes 3121.

The locking assembly 30 further includes an actuation lever 35. One end of the actuating lever 35 is connected to the opposite end of the lock 31, the opposite end of which protrudes from the space of the inner slideway 10. Due to this, when the force is applied, the actuating lever 35 has an internal slideway 10 about the hinge joint until the locking holes 3121 are separated from the locking parts 21 and the slide rail is unlocked. The lock 31 can be driven to rotate about.

In order to improve the assembly performance of the seat slide rail, the structural design described below can be particularly employed. As shown, the actuation lever 35 has an axial position limiting surface 351 that projects outward at one end. The locking assembly 30 further comprises a spring plate 33. One end of the spring plate 33 is fixedly connected to the inner slideway 10, and the opposite end thereof is bent in a circular manner so as to be adjacent to the axial position limiting surface 351. Works with In this way, the actuating lever 35 may be inserted into the inner slideway 10 and assembled to the lock 31 after the slide rail body is assembled. While the actuation lever is inserted into the inner slideway, the circularly curved portion of the spring plate 33 is pressed outwards, elastically deformed by the actuation lever 35, and the axis of the actuation lever 35. When the position limiting surface 351 reaches a predetermined position, it returns to the original position. At this time, one end surface 332 of the circularly curved portion of the spring plate 33 interlocks with the axial position limiting surface 351 of the operating lever 35 in a manner adjacent to the axial position limiting surface 3512. do. This effectively prevents the actuating lever 35 from being accidentally separated from the inner slideway 10. The split type design not only reduces the contour size of the slide rail body, but is also easy to assemble, and the actuation lever can be inserted into the inner slideway even after the seat has been assembled to ensure good assembly performance. It is clear.

Of course, in order for the overall structure of the slide rail to be smaller, the spring plate 32 for applying pre-tightening force and the spring plate 33 for preventing accidental detachment of the actuating lever 35 are located at the same point on the inner slideway 10. For example, it can be fixed by welding or riveting. As shown in FIGS. 5 and 6, the two spring plates are secured together with rivets 34 in the holes 12 of the inner slideway 10. In particular, the cross section of the rivet 34 has opposite straight edge segments, and the spring plates 32, 33 each have holes 323 of the same cross section as the cross section of the rivet 34. 331. In order to fix the spring plates 32 and 33 and to prevent the spring plates 32 and 33 from deviating or rotating laterally, the holes 12 of the inner slideway 10 are also It has a cross section corresponding to the cross section of the rivet 34.

Hereinafter, a specific operation process of the seat slide rail will be described.

I. Under normal conditions, the spring plate 32 exerts a pretightening force on the lock 31 and the slide rail is locked. The lock holes 3121 of the lock driver 312 are engaged with the locks 21 on the outer slideway 20. As shown in FIG. 7, in this state, the relative position between the inner slideway 10, the locker 31 and the outer slideway 20 is fixed and cannot be moved.

II. When the forward and backward position adjustment of the seat is necessary, an external force is applied to the actuation lever 35 so that the actuation lever 35 can move upward. The actuating lever 35 eventually rotates the lock 31 around a hinge joint between the lock 31 and the inner slideway 10, and causes the lock 31 to resilient the spring plate 32. To overcome. On the other hand, the lock driver 312 moves and moves downward in the opening 13 until the locks 21 are separated from the lock holes 3121. As shown in FIG. 8, the slide rail is unlocked and the inner slideway can slide relative to the outer slideway. The seat is then adjusted back and forth according to actual needs. When the seat is adjusted to the target position, the operating lever 35 is released, and the lock 31 is subjected to the elastic force of the spring plate 32 while the locking holes 3121 of the lock 31 are moved to the outer slideway 20. Rotation about the hinge joint between the locker 31 and the inner slideway 10 until it engages the locks 21 on them. At this time, the inner slideway cannot slide relative to the outer slideway, and the slide rail returns to the locked state.

Furthermore, in order to prevent noise caused by metal collision between the actuating lever 35 and the internal or external slideway during operation of the actuating lever to prevent the driver and / or passengers from being affected by the noise, preferably plastic or rubber A bush 36 made of material is provided between the actuating lever 35 and the inner slideway 10.

In the unlocked state, if the user slides the seat with excessive force, there is a possibility that the inner slideway 10 is completely detached from the outer slideway 20. Thus, this solution further adopts a position limiting structure. That is, each of the inner slideway 10 and the outer slideway 20 has position limiting projections that limit extreme positions, and the inner slideway 10 can be stretched or contracted with respect to the outer slideway 20. have. In particular, as shown in FIG. 8, the outer slideway 20 has four protrusions 22 protruding upward on the bottom portion, and the inner slideway 10 protrudes downward on the bottom portion. Four protrusions 14 are provided. When the inner slideway slides with respect to the outer slideway to extreme positions along the longitudinal direction of the slide rail, the protrusions 22 of the outer slideway 20 are the protrusions 14 of the inner slideway 10. Adjacent to. The extreme position limiting functions can ensure that the inner slideway and the outer slideway slide within a predetermined range and that the inner slideway is not separated from the outer slideway. This type of position limiting design employs a structure in which the inner slideway and the outer slideway have direct protrusions. Therefore, the front and rear position limitations of the seat are stable and very accurate, and the cost is low because no additional position limiting device or part is required.

Of particular note is that the floor of the seat and the vehicle body are not shown in the relevant figures. The assembly of the seat slide rails to the whole vehicle is exactly the same as in the prior art. For example, each of the inner slideway 10 and the outer slideway 20 has threaded holes to be connected to the bottom of the seat and the bottom of the vehicle body through a threaded lock. The assembly connection relationship may be performed by a person of ordinary skill in the art, which is not described herein.

The above-described embodiments are merely preferred embodiments of the present invention. As those skilled in the art to which the present invention pertains can make various modifications and variations within the technical spirit of the present invention, all such modifications and variations should be regarded as falling within the protection scope of the present invention.

10: inside slideway 11: hole
12: hole 13: opening
14: protrusion 15: rounded corner
16: outer wall 20: outer slideway
21: lock-up tooth 22: protrusion
23: rounded corner 24: rounded corner
30: lock-up assembly 31: lock member
311 boss 312 locking drive
3121: locking hole 3122: position limit groove
313: inner wall 32: spring plate
321: end 322: flange
323: hole 33: spring plate
331 hole 332 end surface
34: rivet 35: operating lever
351: axis position limiting surface 36: bush
40: retainer assembly 41: retainer
42: big steel ball 43: small steel ball

Claims (10)

An internal slideway for connecting the seat bottom;
An outer slideway connecting the bottom of the vehicle body and slidably coupled to the inner slideway; And
A seat slide rail comprising: a spacing assembly provided with rollers and provided between the inner slideway and the outer slideway,
A locking assembly provided within the space of the inner slideway, wherein the locking assembly comprises:
A locker hinged to a side wall of the inner slideway at its central portion; And
And a resilient magnet provided between the lock and the inner slideway to provide a lock pretightening force.
The locker has a locking drive at one end that protrudes laterally from an opening in the sidewall of the inner slideway; In the longitudinal direction of the slide rail, the lock drive part has a lock hole or locks, and the outer slideway has a lock hole corresponding to a lock hole in the lock drive part or a lock hole corresponding to those on the lock drive part. and; The lock drive or the outer slideway has a plurality of the locks or a plurality of the lock holes, the locker locking the lock and the inner to lock a plurality of relative positions between the inner slideway and the outer slideway. A seat slide rail, which rotates about a hinge joint between slideways. The method of claim 1,
The locking drive unit is provided with the locking holes on both sides, the outer slideway seat slide rail, characterized in that it has a plurality of corresponding locking protrusions protruding downward on both sides. The method of claim 2,
The locking drive unit is a slide slide seat, characterized in that provided with a plurality of locking holes in the longitudinal direction of the slide rail. The method of claim 3,
The lock driving portion has a position limiting groove extending in the longitudinal direction of the slide rail on the upper surface, the elastic member is a spring plate, one end of the spring plate is fixedly connected to the inner slideway, the opposite end is A seat slide rail, characterized in that located in a position limiting groove. The method of claim 1,
The locking assembly further comprises an actuating lever, one end of the actuating lever being connected to the other end of the lock, the opposite end protruding from the space of the inner slideway, and the actuating lever being provided with the locking holes of the slide rail. And the locker can rotate about the inner slideway about the hinge joint until it is released from the corresponding locks to unlock the locks. The method of claim 5,
The lock lever has an axial position limiting surface extending outwardly, the lock assembly further comprising a spring plate, one end of the spring plate being fixedly connected to the inner slideway, the opposite end being curved in a circle And a seat slide rail adjacent said position limiting surface. The method of claim 1,
The outer slideway has a “U” shaped cross section and the ends of both sidewalls of the outer slideway are bent inward and then bent downward to form symmetrical receptacles for receiving the spacing assemblies; The inner slideway is Chinese "

Seat cross section, wherein the ends of both sidewalls of the inner slideway are bent outwardly and then bent upward to abut the rollers of the spacing assemblies. The method of claim 7, wherein
The gap maintaining assembly has upper row rollers and lower row rollers in the longitudinal direction of the slide rail, wherein the upper row rollers and the lower row rollers are provided at the upper outer corner and the lower outer corner of the container, respectively. Seat slide rails. The method according to any one of claims 1 to 8,
And a bush is provided between the actuating lever and the inner slideway. 10. The method of claim 9,
Each of the inner slideway and the outer slideway has position limiting projections for limiting extreme positions, the inner slideway being reduced or stretched relative to the outer slideway.

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