KR101634297B1 - Locking device for seat track - Google Patents

Abstract

The present invention relates to a seat track locking device for a vehicle. The present invention aims to, even if a strong impact load occurs on an inserted bottom end unit of locker from a locking hole of a fixing track by pileup or collision of a vehicle, allow a working member of the locking device to be easily operated, to make locking of all lockers released, and to improve the escape of a passenger. The present invention provides a seat track locking device where: a moving track is fixated on a fixing track by inserting a locker on one side of a locker unit into a locking hole of the fixing track with a return spring; all lockers of the locker unit are operated in a direction to compress the return spring and to break away from the locking hole; and the locking of the moving track onto the fixing track is released. A guide member having a plurality of guide holes is installed in the moving track. A fall-preventing plate with a blocking penetrating hole is connected to and installed in the guide member. A locker penetrates the guide hole and the blocking penetrating hole. When a locker on one side, which is locked in the locking hole, is bent by load, the fall-preventing plate is pushed and moved by contact with the locker which is bent, and one side of the blocking penetrating hole of the fall-preventing plate pushed and moved contacts a locker which is not locked. Accordingly, even if the position of the locker unit is changed to place the locking hole of the fixing track on the bottom of the locker which is not locked, the locker, which is not locked, is prevented from falling into the locking hole of the fixing track by the return spring.

Description

[0001] The present invention relates to a locking device for a seat track,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a seat track locking device for a vehicle.

A conventional vehicle seat track includes a fixed track fixedly mounted on a vehicle body, a movable track coupled to the fixed track and connected to the seat to move along the fixed track along with the seat, To lock the movable track in the locked position by restricting the movement of the movable track by selectively coupling the movable track to the locked position, or to unlock the movable track in the locked position, And an operation lever for transmitting operation force for unlocking,

The locking device includes a guide member coupled to an inner surface of one side wall of the moving track, a fixing member coupled to an outer surface of one side wall of the moving track, a guide member guided into the guide member located inside the moving track, A return spring for returning the rocker, and an operation member for receiving the operation force of the user and separating the rocker from the locking hole of the fixed track and vertically lifting the rocker.

In the conventional seat track locking apparatus constructed as described above, the lower end portion of the rocker is inserted into the locking hole of the fixed track by the restoring force of the normal return spring whose operating force is removed from the operating member, thereby restricting the locking state, The lower end of the rocker is separated from the locking hole of the fixed track while allowing the restoring force of the return spring to be overcome by rotating the actuating member to allow the movable track to move in the unlocked state.

However, in the conventional vehicle seat track locking apparatus, when a strong load is applied to the moving track of the seat track due to collision or collision of the vehicle, deformation is caused in one rocker inserted into the locking hole, A phenomenon occurs in which the locker is inserted into the locker of the fixed track and the operation of the locking device becomes impossible.

For example, in a state where the first locker 61 and the fourth locker 64 are inserted and locked into the locking holes 11 of the fixed track, respectively, as shown in Fig. 1 (a) When a strong load is applied to the fixed track of the seat track due to collision or the like, the conventional seat track locking device for a vehicle has a structure in which the first locker 11, which is in contact with the locking hole 11 of the fixed track, The first, second, third, and fourth rockers 61, 62, 63, 64 connected and assembled to the movement track are moved, The locking hole 11 of the fixed track is positioned below the third locker 63 which has been in the unlocked state and the third locker 63 is locked by the elastic restoring force of the return spring 80, As the first and third lockers are inserted into the hole 11, an excessive surface friction force is generated in the locking hole of the fixing member, so that, in the upward operation of the first, second, A phenomenon occurs that the generated rocker is not operated normally. That is, there has been a problem that the occupant can not escape by changing the position of the seat by the magnetic force.

Open Patent Publication No. 10-2008-0029111 (Apr. 03, 2008)

It is an object of the present invention to provide a vehicle occupant protection apparatus and a vehicle occupant protection apparatus capable of easily locking an operating member of a locking apparatus and releasing locking of all lockers even if a strong impact load is generated from a locking hole of a fixed track, And a seat track locking device for a vehicle.

The present invention is characterized in that a return spring inserts a rocker of one side of a rocker into a locking hole of a fixed track and fixes the moving track to a fixed track and all the lockers of the rocker part compress the return spring and move away from the locking hole A sheet track locking apparatus operated to release a locking of a moving track with respect to a fixed track, the apparatus comprising:

Wherein a guide member having a plurality of guide holes is provided in the moving track, a lowering prevention plate having a cut-off through-hole formed therein is connected to the guide member, and the rocker penetrates the guide hole and the cut-through hole,

When the one-side rocker locked in the locking hole generates a warpage by the load, the downward-protruding plate is pushed by the contact with the rocker in which the warp occurred, and the one side of the through-hole of the downward- The rocker in the unlocked state is prevented from falling into the locking hole of the fixed track by the return spring even if the position of the rocker portion is changed so that the locking hole of the fixed track is located at the lower portion of the rocker in the unlocked state .

In the present invention, a lowering prevention plate having a cut-off through-hole formed therein is connected to a guide member of a locking device that binds a moving track to a fixed track by a plurality of lockers. Even if a load is applied to the rocker, So that the rocker of the rocker can be prevented from descending.

Even when a load is applied to the seat track locking device, only two of the plurality of lockers are inserted into the locking hole, so that the upward operation of the rocker by the operating member can be smoothly performed.

The present invention has a configuration in which a fall prevention plate is provided to be connected to a guide member of a locking device, so that the present invention can be applied without major structural changes of the existing locking device.

1 is an exemplary view showing an operating state according to the generation of a load of a conventional locking device
2 is an exemplary view showing the entire configuration of a seat track according to the present invention.
3 is an exemplary view showing an internal configuration of a locking device according to the present invention.
4 is an exemplary view showing a configuration of a fall prevention plate according to the present invention.
FIG. 5 is an exemplary view showing an operating state of a locking device provided with the fall prevention plate of FIG. 4,
6 is an exemplary view showing a modified configuration of the fall prevention plate according to the present invention.
FIG. 7 is an exemplary view showing an operation state of the fall prevention plate according to FIG.
8 is an exemplary view showing the operating state of the locking device provided with the upper / lower fall prevention plate (the first and fourth rocker locking combinations)
9 is an exemplary view showing the operating state of the locking device provided with the upper / lower fall prevention plate (the third and fourth locker locking combination)
10 is an exemplary view showing the operating state of the locking device provided with the upper / lower fall prevention plate (second and third rocker locking combinations)
11 is an exemplary view (first and second locker locking combinations) showing the operating state of the locking device provided with the upper /
12 is an exemplary view showing another modified configuration of the descent prevention plate according to the present invention.
13 is an exemplary view showing an operation state of a fall prevention plate for a locking device composed of first, second and third rockers

The present invention is characterized in that a return spring inserts a rocker of one side of a rocker into a locking hole of a fixed track and fixes the moving track to a fixed track and all the lockers of the rocker part compress the return spring and move away from the locking hole A sheet track locking apparatus operated to release a locking of a moving track with respect to a fixed track, the apparatus comprising:

Wherein a guide member having a plurality of guide holes is provided in the moving track, a lowering prevention plate having a cut-off through-hole formed therein is connected to the guide member, and the rocker penetrates the guide hole and the cut-through hole,

When the one-side rocker locked in the locking hole generates a warpage by the load, the downward-protruding plate is pushed by the contact with the rocker in which the warp occurred, and the one side of the through-hole of the downward- The rocker in the unlocked state is prevented from being lowered into the locking hole of the fixed track by the return spring even if the position of the rocker portion is changed so that the locking hole of the fixed track is located at the lower portion of the rocker in the unlocked state have.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, the locking configuration by a plurality of lockers is usually four kinds, but the drawings of the present invention represent 1/4 conditions representatively.

FIG. 2 is an exemplary view showing an entire structure of a seat track according to the present invention, and FIG. 3 is an exemplary view showing an internal structure of a locking device according to the present invention. In the seat track locking device 100 of the present invention, A guide member 40 provided in the moving track 20 and provided with a guide hole, a descent prevention plate 30 provided in the guide hole 41 of the guide member so as to communicate with the cut-off hole 31, A rocker portion 60 provided in the moving track 20 so as to penetrate through the hole 41 and the blocking through hole 31 and made of a plurality of lockers; A return spring 80 connected to the moving track 20 so as to press the return track 80 and a return spring 80 connected to be rotatably connected to one side of the moving track 20 to compress the return spring 80, And an actuating member (90) for moving it away from the hole (11).

The fixed track 10 is fixed to the vehicle body floor and has a predetermined length in the longitudinal direction of the seat. The bottom plate 12 is provided with a plurality of locking holes (11) are formed.

The moving track 20 is fixed to the lower portion of the seat and is inserted into the fixed track 10. The moving track 20 has a guide member 40 having a predetermined length in the front- Are integrally connected and fixed to the inner side wall by rivets, welding or the like.

The guide member 40 includes a body 42 coupled to one side wall of the moving track 20 and a plurality of guide holes 41 formed in the body 42 to guide the vertical movement of the rocker portion 60. [ .

The body 42 includes a vertical plate 42b coupled to one side wall of the moving track 20 and a bending extension 42c extending from the vertical plate 42b so as to be adjacent to the bottom plate 12 of the fixed track 10. [ And a second horizontal plate 42c extending and extending from the vertical plate 42b so as to be spaced apart upward from the first horizontal plate 42a, A plurality of guide holes 41 are formed in the horizontal plates 42a and 42c.

The body 42 may be formed of only the first horizontal plate 42a having the vertical plate 42b and the guide hole 41. [

The locker portion 60 is inserted into the locking hole 11 of the fixing member through the guide hole 41 of the guide member and the cut-off hole 31 of the downward blocking plate by the elastic restoring force of the return spring 80 It consists of a plurality of lockers. 2 and 3 of the present invention, the rocker portion 60 including the first, second, third and fourth rockers 61, 62, 63 and 64 is shown, It is not.

A load is generated on the moving track or the fixed track so that three or more lockers among the lockers of the rocker portion 60 are inserted into the locking holes 11 of the fixed track to be operated by the occurrence of excessive surface frictional force A cut through hole 31 having a diameter larger than the diameter of the guide hole 41 is formed to prevent the operation of the member 90 from being disabled and each cut through hole 31 Is connected to the guide member (40) so as to have the same center line (C) as the guide hole (41) of the guide member.

The lowering prevention plate 30 includes a lowering prevention plate 30a connected to the guide member by a welding method to be described later, lowering prevention plates 30b and 30b 'connected to the guide member by the moving fixture, A descent prevention plate 30c formed of a plate and connected to the guide member by a moving fixture, and a descending prevention plate 30d formed as a clip type and fitted to the guide member.

In addition, the downward protrusion plate 30 of the present invention may be connected to the guide member by various methods such as welding, riveting, fitting, caulking, pin fitting, key fitting, spring fitting and the like.

Figs. 4 and 5 show an example in which the descent prevention plate is connected to the guide member by a welding method. The descent prevention plate 30 according to the present invention is a descending prevention plate 30 having a shape in which both end portions thereof are connected to one side of a guide member 40 by welding so that the cut-off hole 31 is communicated with the guide hole 41 of the guide member. And a prevention plate 30a.

That is, the downward protrusion plate 30a includes a movable plate 32 having a plurality of cut-off through-holes 31 formed at regular intervals, and a movable plate 32 protruding or bent at both ends of the movable plate 32, And a welding support plate 33 whose ends are welded. At this time, the movable plate 32 is placed on the first horizontal plate 42a of the guide member or close to the first horizontal plate 42a.

As shown in FIGS. 4 (b) and 4 (c), the cut-off through-hole 31 has a diameter D5 larger than the guide hole diameter D of the guide member, 41 and the same center line C as shown in Fig. The blocking through-holes 31 may all have the same diameter, or may be formed so that neighboring blocking through-holes have different diameters.

Although the diameter D5 of the cut-off hole is not particularly limited, even if the locker portion of the rocker portion 60 freely moves upward and downward and a bending phenomenon occurs in one rocker due to the load, the rocker, It is sufficient that the diameter of the lowering prevention plate is such that the lowering prevention plate is brought into contact with one side of the lowering preventing plate to cause the lowering preventing plate to be pushed.

The downward-protruding plate 30a configured as described above is formed in a plate-like shape thinner than the first horizontal plate 42a of the guide member, so that deformation occurs in the welded support plate 33 upon contact with the rocker, The flat plate 32 itself is subjected to a swelling phenomenon. That is, as shown in FIG. 5, the lowering preventing plate 30a is provided with a first rocker 61 and a second rocker 61 by a load, with the moving track being locked to the fixed track by the first and fourth lockers 61, A bending phenomenon occurs in the downwardly protruding plate 30a in the direction P opposite to the moving direction F of the moving track due to contact (impact or impact) with the first rocker 61 Whereby the one side of the third cut through hole 31c of the fall prevention plate 30a is brought into contact with the lower tapered portion 63a of the third locker 63 which is not inserted into the locking hole 11, (63) is prevented from being inserted into the locking hole (11) located at the bottom.

As described above, according to the present invention, even if the first rocker 61 is flexed by the load and the locking hole 11 of the fixed track is located at the lower portion of the third rocker, two lockers, that is, Only the first and fourth lockers 61 and 64 are located, so that the operation of the operation member 90 is facilitated. (The guide hole formed in the guide member is deformed into a slit shape by the force of the first locker when the first locker is bent, and thus even if the first locker is warped, Are all easily lifted.)

5, only the first and fourth lockers 61 and 64 are shown in the locked state. However, even when the lockers are variously coupled into the locking holes, only the positions of the contact through holes are different, Thereby preventing the unlocked rocker from descending by operation.

FIG. 6 is a view showing an example of a modified structure of the descent prevention plate according to the present invention. In the descent prevention plate 30 according to the present invention, a coupling hole 37 A plurality of blocking through holes 31 are formed at predetermined intervals between the coupling holes 37 and a lowering prevention plate 30b connected to the guide member 40 by the moving fastener 39, .

At this time, the lowering prevention plate 30b is fixed to the guide member 40 by the moving fastener 39 so that the lowering prevention plate 30b has a binding force enough to cause slight movement about the guide member 40 by a predetermined force Connection is established.

The lowering prevention plate 30b is connected to the connection hole 43 formed in the guide member 40 by the movement fixture 39 and the connection hole 43 of the guide member is fixed to the movement fixture 39 Can be formed by slitting or notching so as to allow the flow of the downwardly protruding plate 30b. As shown in FIG. 6 (b), the connection hole 43 formed in the guide member is preferably formed in a shape having a long side.

7, when the first and fourth lockers 61 and 64 are inserted and locked in the locking holes 11 of the fixed track, the downward movement preventing plate 30b, One side of the first locker 61 is brought into contact with one side of the first cut through hole 31a of the fall preventing plate 30b when the first locker 61 is moved in the F direction to cause the first locker 61 to be bent The third blocking through hole 31c is formed in the third locker 63 by the pushing action of the blocking plate 30b. As a result, The third locker 63 is prevented from being inserted into the locking hole 11 located at the bottom of the lower tapered portion 63a.

8 is a view showing an example of the operating state of the locking device provided with the upper / lower fall prevention plate (the first and fourth locker locking combinations), and the fall prevention plate 30 according to the present invention has the first number A lower end lowering prevention plate 30e provided to be positioned on the upper side of the flat plate 41a, a lower end lowering prevention plate 30f provided to be positioned lower than the first horizontal plate 41a of the guide member, And a lowering prevention plate 30c composed of a moving fastener 39 connecting the upper lowering prevention plate 30e and the lowering lowering prevention plate 30f to the guide member.

At this time, the upper and lower fall prevention plates 30e and 30f are fixed to the moving fastener (s) 30a and 30b so as to have a binding force such that independent movement can be generated around the guide member 40 by a predetermined force 39).

In addition, the upper fall preventing plate 30e and the lower fall preventing plate 30f are formed such that diameters of the adjacent blocking through holes are different from each other. That is, the upper fall preventing plate 30e is formed such that the diameters of the second and fourth shut-off through holes 31b 'and 31d' are larger than the diameters of the first and third shut-off holes 31a 'and 31c' , The lower fall prevention plate 30f is formed such that the diameters of the first and third cutoff holes 31a "and 31c" are larger than the diameters of the second and fourth cutoff holes 31b & The first and third cut-through holes 31a 'and 31c' of the upper fall-down prevention plate, the second and fourth cut-through holes 31b '' and 31d '' of the lower fall- The cut-off holes 31b 'and 31d' and the first and third cut-off holes 31a 'and 31c' 'of the lower end lowering preventing plate may be formed to have different diameters or the same diameter, The position of the lower fall prevention plate may be changed.

In the downward protector 30c of the present invention, the moving track is moved in the F direction by the load in a state where the first and fourth lockers 61 and 64 are inserted and locked in the locking hole 11 of the fixed track When the first rocker 61 is flexibly warped, one side of the first rocker 61 in which the warp and deflection is generated is brought into contact with one side of the first interrupting hole 31a 'of the upper fall preventing plate, The third blocking through hole 31c 'of the upper fall preventing plate 30c is engaged with the lower tapered portion 63a of the third locker 63, The third rocker 63 is prevented from falling due to the elastic restoring force of the return spring.

9 shows an example of the operation of the locking device provided with the upper / lower fall prevention plates (third and fourth locker locking combinations). In the state where the third and fourth lockers 63, 64 are locked, The fourth locker 64 is brought into contact with one side of the fourth cut through hole 31d "of the lower fall prevention plate to apply an impact to the fourth locker 64, and the impact is applied to the fourth locker 64 in the P direction The second lowering preventing through hole 32b "of the lower lowering preventing plate comes into contact with or comes close to one side of the lower tapered portion 62a of the second locker 62, The lowering of the locker 62 is prevented.

10 shows an example of the operation of the locking device provided with the upper / lower fall prevention plates (second and third rocker locking combinations). When the second and third lockers 62 and 63 are locked, The third locker 63 is brought into contact with one side of the third cut-off hole 31c 'of the upper fall-down prevention plate to apply an impact, and the impact is applied to the third locker 63 in the P direction The upper stopper plate 30e is pushed to come into contact with or come close to one side of the lower tapered portion 61a of the first locker 61 so that the first stopper hole 31a ' Thereby preventing the rocker 61 from descending.

11 shows an example of the operation of the locking device provided with the upper / lower fall prevention plate (first and second locker locking combinations). When the first and second lockers 61 and 62 are locked, The second locker 62 is brought into contact with one side of the second cut-off through-hole 31b "of the lower fall-down prevention plate to apply an impact, The fourth blocking hole 31d "of the lower fall prevention plate comes into contact with or comes close to one side of the lower tapered portion 64a of the fourth locker 64 so that the fourth locker 64 Is prevented from falling.

As shown in FIGS. 8 to 11, even when the locking hole is located at the lower portion of the rocker in the unlocked state when the load is generated, the lowering prevention plate 30c according to the present invention can prevent the lowering prevention plate 30e or the lower- The rocker descent in the unlocked state is blocked by the rocker arm 30f. In addition, although some deformation may occur in the first horizontal plate of the guide member when the rocker is flexed, the degree of deformation of the first vertical plate is not so large, so that the upper fall- Is blocked.

12 is a view illustrating another modified configuration of the descent prevention plate according to the present invention, wherein the descent prevention plate 30 according to the present invention is disposed on the upper side of the first horizontal plate 41a of the guide member A lower end lowering prevention plate 30f installed to be positioned below the first horizontal plate 41a of the guide member and a lower end lowering prevention plate 30f installed to be positioned at the lower end of the upper lowering prevention plate 30e, And a lowering prevention plate 30d composed of a plurality of connection bars 30g connecting the lower end lowering prevention plate 30f.

The lowering prevention plate 30d having such a structure is of a clip type in which one side of the upper fall preventing plate 30e and the lower end lowering preventing plate 30f are connected to each other by the connecting strip 30g, The upper end lowering preventing plate 30e and the lower end lowering preventing plate 30f are fitted and fixed to the upper end lowering preventing plate 30e and the lower end lowering preventing plate 30f, The guide member 40 can be moved independently of each other by the twist deformation of the guide member 30g.

That is, the locking device provided with the downward protrusion plate 30d is provided with an upper or lower fall prevention plate 30e or 30f which is in contact with the rocker in which the warpage is generated when a warpage occurs in one rocker by a load So that the lower tapered portion of the locker in the unlocked state is brought into contact with one side of the cut-off hole of the upper fall preventing plate 30e or the lower fall preventing plate 30f.

At this time, the upper and lower fall prevention plates 30e and 30f are formed such that diameters of neighboring cut-off holes are different from each other. That is, the upper fall preventing plate 30e is formed such that the diameters of the second and fourth shut-off through holes 31b 'and 31d' are larger than the diameters of the first and third shut-off holes 31a 'and 31c' , The lower end lowering preventing plate 30e is formed such that the diameters of the first and third cutout through holes 31a "and 31c" are larger than the diameters of the second and fourth cutout through holes 31b "and 31d" The first and third cut-through holes 31a 'and 31c' of the upper fall preventing plate, the second and fourth through holes 31b '' and 31d '' of the lower fall preventing plate, The through holes 31b 'and 31d' and the first and third through holes 31a 'and 31c' 'of the lower end lowering preventing plate may be formed to have different diameters or the same diameter, or may be assembled upside down .

The downwardly protruding plate 30e constructed as above operates in the same manner as the downwardly protruding plate 30c described above, so that the description of the operation thereof will be omitted.

13, the present invention is also applicable to a locking device having first, second and third lockers.

13 is a view illustrating an operation state of a lowering prevention plate for a locking device composed of first, second, and third rockers. The lowering prevention plate 30 of the present invention has a structure And a lowering prevention plate 30b 'formed to have diameters different from each other.

That is, the lowering preventing plate 30b 'may be formed such that the diameter of the second blocking through-hole 31b is larger than the diameter of the first and third blocking holes 31a and 31c.

When the second rocker 63 is deflected by the load in the state where the second and third lockers 62 and 63 are locked, the third locker 63 is engaged with the third locker 63 The impact is applied to one side of the cut-off through-hole 31c, and the impact is caused to cause the push-down plate 30b 'to pivot in the P direction, so that the first cut-through hole 31a of the downward- The first locker 61 is prevented from falling down by being brought into contact with or approaching one side of the lower tapered portion 61a of the first rocker 61. [

In addition, when a flexure of the rocker occurs due to a load, a predetermined deformation occurs in the guide member. However, the deformation of the guide member is omitted since the above-described operation and effects of the present invention are mainly described.

2, reference numeral 50 denotes a fixing member fixedly mounted on the moving track, and 70, a spring holding member installed to be positioned between the fixing member and the moving track and supporting one side of the return spring.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(10): fixed track (11): locking hole
(12): bottom plate (20): moving track
(30): descent prevention plate (31): cut-off penetration hole
(32): moving plate (33): welding support plate
(37): engaging hole (39): moving fastener
(40): Guide member (41): Guide hole
(42): body (43): connection hole
(50): Fixing member (60): Locker part
(70): spring holding member (80): return spring
(90): operating member (100): locking device

Claims (8)

The rocker is inserted into the locking hole of the fixed track by the return spring to fix the moving track to the fixed track and all the lockers of the rocker portion are operated by the operation member in the direction of separating from the locking hole by compressing the return spring, CLAIMS 1. A seat track locking apparatus for releasing locking of a moving track with respect to a track, comprising:
Wherein a guide member having a plurality of guide holes is provided in the movement track, a descending prevention plate having a cut-off through-hole formed therein is connected to the guide member, and the rocker penetrates through the guide hole and the cut-through hole,

The lowering prevention plate may include a coupling hole formed at both ends thereof to which the moving fastener is connected, a plurality of cut-off holes formed at a predetermined interval between the coupling holes, a coupling member connected to the guide member by the moving fastener, The guide member may be provided with a lowering prevention plate having a connection hole formed by slitting or notching to allow the movement fastener and the lowering prevention plate to flow,
The lowering preventing plate includes an upper lowering preventing plate provided on an upper side of a guide member formed with a plurality of guide holes and having a plurality of blocking through holes, And a movable fastener connecting the upper fall preventing plate and the lower fall preventing plate to the guide member, wherein the blocking holes are formed in the upper fall preventing plate and the lower fall preventing plate, The upper and lower fall prevention plates are provided to have the same center line C as the guide holes of the guide member,
The lowering prevention plate includes an upper lowering prevention plate provided on an upper side of a guide member having a plurality of guide holes formed therein and a lower end lowering prevention plate provided below the guide member having a plurality of guide holes, And a connection strip for connecting the upper fall prevention plate and the lower fall prevention plate,
When the one-side rocker locked in the locking hole generates a warpage by the load, the downward-protruding plate is pushed by the contact with the rocker in which the warp occurred, and the one side of the through-hole of the downward- Even if the position of the rocker portion is changed so that the locking hole of the fixed track is located at the lower portion of the rocker in the unlocked state, the rocker in the unlocked state is prevented from falling into the locking hole of the fixed track by the return spring Wherein the seat track locking device comprises:
delete delete delete delete delete delete The method of claim 1,
Wherein the upper fall-down prevention plate and the lower-end fall-prevention plate are formed such that diameters of the adjacent cut-off holes are different from each other.

Images