JP3345098B2 - Vehicle seat rail device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat rail device for a vehicle seat, and more particularly to a seat rail device provided with a lock mechanism for locking a seat rail in accordance with a position adjustment of a seat.

[0002]

2. Description of the Related Art Conventionally, for example, in a seat rail device of a bench seat for a wagon vehicle, a pair of left and right seat rails fixed on the floor surface of the wagon vehicle along the front-rear direction and at right and left intervals are employed. Each of these seat rails is provided with a lower rail having a U-shaped cross section, an upper rail having an inverted U-shaped cross section which is slidably mounted in the lower rail along the front-rear direction, and a front rail extending along the inner side wall of the lower rail. Among the plurality of lock holes described above, there is a lock hole configured symmetrically to the left and right by a lock mechanism that selectively engages a claw of a lock lever attached to the upper wall of the upper rail so as to be tiltable in the vertical direction. And, the lead wire extending from the operation lever of one upper rail is operatively connected to the lock lever of the lock mechanism of the other upper rail,
When one operating lever is operated, the locking mechanism of one seat rail is locked or unlocked, and the locking mechanism of the other seat rail is locked or unlocked via one lead wire. There is something.

[0003]

However, in such a configuration, there is no problem when the lock of each lock mechanism is released by operating one of the operation levers to adjust the position of each upper rail back and forth. . However, when the operation of one of the operation levers is released after the position adjustment is completed, if the position of the opposing lock holes of the left and right lower rails is mutually displaced due to the bending of the bench seat due to its length, Even if the lock lever claw of one lock mechanism can be engaged with the lock hole, the lock lever claw of the other lock mechanism may not be able to engage the lock hole. As a result, simultaneous locking of both seat rails becomes difficult, or even if the simultaneous locking can be realized, there is a problem that the locking operation is redone and the operational feeling is very poor. Therefore, in the seat rail device incorporating the walk-in mechanism, the seat cannot be adjusted to the preset return position, and there is a problem that a sufficient function cannot be achieved. In view of the above, the present invention always achieves locking of a pair of seat rails together in a vehicle seat rail device, even if the seat is long, such as a bench seat. To be able to do so.

[0004]

In order to achieve the above object, a first embodiment of the present invention comprises a pair of left and right lower rails fixed to a vehicle floor, and slidably supported by the lower rails. A pair of left and right upper rails on which a sheet is placed, a plurality of left and right engagement holes formed on the left and right lower rails, and the left and right swingably supported by the left and right upper rails. A left and right lock claw that can be disengaged from the engagement hole, and a left for urging the left and right lock claws to rotate in a direction to engage with the left and right engagement holes.
A right spring , operating means disposed around the seat, and following the operation of the operating means, the left and right locking claws are moved from the left and right engagement holes against the urging forces of the left and right springs. A vehicle seat rail device comprising: an operation lock cooperation mechanism for detaching the operation lock cooperation mechanism, wherein the operation lock cooperation mechanism is supported by the upper rail and operates the operation means.
A link member that moves in accordance with
The lock claw or a member integrated with the lock claw
Against the spring to rotate the lock claw against the urging force of the spring.
Turn the lock claw or lock
A link member that can be detached from the member integrated with the claw, and a right
Or the member integrated with the lock claw on the side
Wire connecting the link member and the left link member
And the lock claw or the lock claw on the left
A second wire for connecting the link member and the right link member
The operation in the unlocking direction is performed by the
Link member is transmitted to forcibly said left and right locking claws only direction of movement of unlocking from the operating means, locking
The movement in the direction to click is independent of the operation of the link member,
The lock claw of the left and right is a mechanism that obtained by engaging the left and right engaging holes on the left and right independently by the biasing force of the left and right springs, the seat rail and wherein the.

When the seat is unlocked by the operating means, the movement is directly transmitted to the left and right lock claws by the operation lock cooperation mechanism, and the locks of the left and right upper rails are simultaneously unlocked. Locked. When the sheet is operated in the direction to lock the sheet by the operation means, the operation lock cooperation mechanism is separated from the lock claw.
Therefore, the right and left lock claws try to engage with the engagement holes independently by the urging force of the urging means. For this reason, the position of the left and right lock claws is slightly shifted due to the bending in the width direction of the bench seat. For example, the left lock claw is at a position where it can be engaged with the engagement hole, but the right lock claw faces the engagement hole. Even if a situation such as not being at the position occurs, it is possible to prevent the right lock claw from being disturbed by the movement of the right lock claw and being unable to engage with the engagement hole. Since the left and right lock claws operate independently to engage with the engagement holes, first, the left lock claw engages with the engagement holes to complete the left lock, and then,
When the bending in the width direction of the bench seat is returned, the right locking claw is engaged with the engagement hole, the right locking is completed with a delay, and the locking of the left and right upper rails is completed.

For example, as shown in FIGS. 1 and 2,
The operation lock cooperation mechanism is connected to the link member 65 and the first wire.
120, 121 and the second wires 130, 131.
Can be achieved. At this time, the lock claws 40b,
44a is swingably supported by the upper rail 20.
And the urging means is provided with the lock pawls 40b, 44
a for urging a to rotate in the direction of the engagement hole 41
45, wherein the operation lock cooperation mechanism is the upper
It is supported by the rail 20 and follows the operation of the operating means 64.
Link member 65 that moves during unlocking operation.
The lock claw 4 0b, 44a or lock claw
The locking claws 40b and 44a are pressed against the member 42
Is rotated against the urging force of the spring 45 to perform a locking operation.
At the time of the lock claw 40b, 44a or the lock claw
Link member 65 that can be detached from integral member 42
And the right lock claw 90b, 94a or lock
The member 92 integrated with the pawl and the link member 65 on the left side
And the first wires 120 and 121 connecting the
Integrally with the lock pawls 40b, 44a or lock pawls
Connection between the member 42 and the link member 115 on the right side
And second wires 130 and 131 to be provided.
It is characterized by. In the above, the lock claw, link member, etc.
Although it is on the left and right, it is difficult to read if you write the sign of both the left and right, so
Only the symbols of the members on the left are shown.

When formed in this manner, for example, the left operation
When trying to unlock by operating the
The left link member 65 moves following the movement of the operating means 64.
Good. Then, the left link member 65 is connected to the left lock claw 40.
b, 44a or the member 42 integrated with the lock claw and pressed against the biasing force of the spring 45 to lock the claw 40b,
Rotate 44a to remove it from the engagement hole 41. As a result,
The left upper rail 30 is unlocked. at the same time,
The movement of the left link member 65 is the first wire 120,
Acting in the direction of pulling 121, the right locking claws 90 b, 94 a are rotated against the urging force of the spring 95 and disengaged from the engagement holes 91. As a result, the right upper rail 80 is unlocked. After all, the left and right upper rails 30, 8
0 is unlocked at the same time.

The operating means 64 is operated in the locking direction.
And (Release your finger because there is actually a spring bias.
The left link member 6 following the movement of the operating means 64.
5 moves in the opposite direction. And the left link member 65 is
Lock claw 40b, 44a or integrated with lock claw
The member 42 is separated. As a result, the left lock claw 40
b and 44a become free, and are reversed by the biasing force of the spring 45.
Is rotated in the direction shown in FIG.
You. At the same time, the movement of the left link member 65 in the opposite direction
The force pulling the first wires 120 and 121 disappears
You. As a result, the right The hooks 90b and 94a are free
And rotated in the opposite direction by the urging force of the spring 95
An attempt is made to engage with the right engagement hole 91. Thus, left and right
Lock pawls operate independently of each other,
Click. Therefore, the deflection in the width direction of the bench seat
Even if the position of the lock claw on the left and right is slightly shifted,
Locked sequentially from the one where the position of the lock claw and the engagement hole match.
The left and right upper rails are securely locked.

Operation when right operating means 114 is operated
The same is true only for the operation that is symmetrical.
A second wire 130 instead of the ears 120, 121,
The operation of 131 will not require explanation.

Here, the operating means is an operating lever 6
4, 114, the movement of the operating levers 64, 114
And a mechanism for moving the link members 65 and 115
It can be characterized by having. Do this
And either one of the operation levers 64 or 114 with fingers.
Operate to unlock and lock the seat rail
Can be easily done.

Here, the operating means is a seat back.
Yes, members 10c and 10 that rotate integrally with the seat back
A third wire 140, 141 or 150, 151 for connecting d to the link members 65, 115 may be provided. This way, split
One of the left and right seat backs
The third wire 140 or 150 is pulled more,
When the left or right link member 65 or 115 is moved
It is equivalent to operating the operation lever, and the upper rail
Is unlocked. Therefore, slide the seat forward.
The rider can get on and off freely by riding. That is,
It will have a quince mechanism. After getting on and off
By raising the seat back, the third wire 14
0, 141 or 150, 151 tension disappears
Then, the link members 65 and 115 are locked claws or locked.
Separated from the member integrated with the pawl, the left and right locking pawls engage
The holes are locked independently, trying to engage with each other independently.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example in which a seat rail device according to the present invention is applied to a bench seat 10 of a wagon vehicle.
The seat rail device includes a pair of left and right seat rails R.
L, RR, and each of these seat rails RL, R
R is arranged in parallel in the left-right direction along the front-back direction on the floor of the cabin of the wagon vehicle. In such a case, the interval between these seat rails RL, RR in the left-right direction is widened according to the length of the bench seat 10 in the left-right direction. The seat portion 10a of the bench seat 10 is mounted and fixed on both seat rails RL and RR at left and right ends thereof, and the seat portion 10a has a seat back portion 10b.
However, at the lower left and right ends, each reclining mechanism 10
It is assembled so as to be tiltable in the front-rear direction via c and 10d.

The two seat rails RL, RR are symmetrical to each other. The left seat rail RL includes a lower rail 20 having a substantially U-shaped cross section. The lower rail 20 is attached to the left side on the floor surface in the vehicle interior along the front-rear direction by fastening bolts (not shown). . The left seat rail RL is provided with an upper rail 30 having a substantially inverted U-shaped cross section. The upper rail 30 is provided in the lower rail 20 along the front-rear direction.
It is slidably fitted via a plurality of rollers (not shown) and steel balls. Also, left seat rail RL
Is provided with a left-side lock mechanism 40 as shown in FIG. The lock mechanism 40 includes a lock plate 40a having an L-shaped cross section, and the lock plate 40a is mounted on the bottom wall 21 and the inner wall 22 of the lower rail 20 in an L-shape from the outside (FIG. 1).
This lock plate 40a has a
A plurality of lock holes ( engagement holes) 41 to 41 are formed at predetermined intervals. In addition, the left locking mechanism 40
A lock lever 40b is provided.
Reference numeral 0b denotes a pivot rod 42 welded to the base of the arm 43, and the two arms 43a, 43a of the U-shaped bracket 43,
The upper rail 30 is pivotally supported so as to be rotatable parallel to the front-rear direction and up and down (in the direction of arrow C in FIG. 1, that is, clockwise or in the opposite direction). In such a case, the bracket 43 is welded at its bottom wall 43b to a vertical inner wall of a cover plate 50 having a U-shaped cross section which is mounted upright on the upper wall 31 of the upper rail 30.

At the tip of the lock lever 40b, forked claws (lock claws) 44a, 44a are formed, and both claws (lock claws) 44a, 44a
By turning in the direction opposite to the arrow C of the arrow 0b, the lock plate 40a is engaged with the corresponding lock holes ( engagement holes) 41, 41 of the lock plate 40a. On the other hand, these two claws (lock claws) 44a, 44a
The lock lever 40b is pivoted in the direction of arrow C so that both corresponding lock holes (engagement holes) of the lock plate 40a are formed.
The engagement with 1, 41 is released. This means that the lock mechanism 40 locks the upper rail 30 to the lower rail 40a by engaging the claws (lock claws) 44a, 44 into the corresponding lock holes ( engagement holes) 41, 41. The lock is released by releasing the two claws (lock claws) 44a, 44a from engagement with the corresponding lock holes (engagement holes) 41, 41. In addition, related
I have used a sign that is not, but a forked claw (lock claw)
44a is a part of the lock lever 40b,
-40b and the claw (lock claw) 44a are integral members.
You.

At the front end of the rotating rod 42, a crank portion 42a is provided, while at the rear end 42b of the rotating rod 42, a torsion spring 45 is coaxially fitted. The torsion spring 45 has a pivot rod 4 at both ends thereof.
The rear arm 43 of the bracket 43 is urged in a direction opposite to the arrow C in FIG.
a and the rear end 42b of the rotating rod 42. Therefore, when the rotation rod 42 is in the rotation position shown in FIG.
It is realized under a torsional reaction force of 5. On the other hand, the rotating rod 4
2 has a torsion spring 4a at its tip.
When the lock mechanism 40 rotates in the direction of arrow C against the torsional reaction force of 3, the lock operation of the lock mechanism 40 is released. A left operation mechanism 60 is provided on the left seat rail RL as shown in FIG. The left operation mechanism 60 includes an operation rod 61, and the operation rod 61 is fastened to a stay (not shown) welded to the front end of the cover plate 50 at the front end crank 61a. The bracket 62 is rotatably supported by a U-shaped rear wall 62a. On the other hand, the operating rod 61 has a rear end crank 61
b, the wall 63a of the L-shaped bracket 63 fastened to the cover plate 50 in the same manner as the front end crank 61a.
It is rotatably supported on the shaft. In such a case, the operating rod 61 is supported by the cover plate 50 so that the respective distal ends of the two crank portions 61a and 61b extend in parallel with the upper rail 30.

The left operating mechanism 60 has a substantially L-shaped operating lever 64. The operating lever 64 is
At the front and rear walls provided at the base, a pin (not shown) is pivotally supported on a part of the upper wall of the cover plate 50 so as to be vertically rotatable. In such a case, the operation lever 64
Is rotated in the direction opposite to the arrow A in FIG. 1 around the pin by a left-side tension spring (not shown) (extended between a part of the cover plate 50 and a part of the operation lever 64). It is urged to rotate. The operation lever 64
Is loosely fitted to the central portion 61c of the operation rod 61 at respective long holes 64a, 64a formed in the front and rear walls provided at the base. Thus, the operation lever 64
When the operating rod 61 is turned in the direction of arrow A against the left-side tension spring, the operating rod 61 is guided by the long holes 64a, 64a of the operating lever 64 at the central portion 64a, and the arrow B is moved. Rotate in the direction. On the other hand, when the operation lever 64 is rotated in the direction opposite to the arrow A by the left tension spring, the operation rod 61 is moved to the operation lever 6 at the central portion 64a.
4 and is rotated in the direction opposite to the arrow B by being guided by the two long holes 64a.

The link lever (link member) 65 is welded concentrically to the rear end crank portion 61b of the operation rod 61 at its rotation center portion 65a.
(Link member) 65 is attached to the crank portion 42a of the rotating rod 42 in accordance with the rotation of the rear end crank portion 61b of the operation rod 61 in the direction of arrow B accompanying the rotation of the operation lever 64 in the direction of arrow A. While engaging and pushing from the right side, it is rotated in the direction of arrow C (direction for releasing the lock). On the other hand, the link lever (link member) 65 is
When rotating in the direction opposite to the arrow A, the pushing of the rotating rod 42 against the crank portion 42a is released, and the rotating rod 42
Under the torsional force of the torsion spring 43, in response to the rotation of the rear end crank 61b of the operating rod 61 in the direction opposite to the arrow B, the direction opposite to the arrow C direction (the direction in which the lock is achieved). ).

The right seat rail RR includes a lower rail 70 having a substantially U-shaped cross section.
Is mounted on the right side of the floor of the vehicle interior in parallel with the lower rail 20 by tightening bolts (not shown). The right seat rail RR is provided with an upper rail 80 having a substantially inverted U-shaped cross section. The upper rail 80 is provided in the lower rail 70 along the front-rear direction.
It is slidably fitted via a plurality of rollers (not shown) and steel balls. Also, the right seat rail RR
Is provided with a right-side lock mechanism 90 as shown in FIG. The lock mechanism 90 includes a lock plate 90a having an L-shaped cross section. The lock plate 90a is mounted on the bottom wall 71 and the inner wall 72 of the lower rail 70 in an L-shape from the outside (FIG. 1).
This lock plate 90a has a
A plurality of lock holes ( engagement holes) 91 to 91 are formed at predetermined intervals. In addition, the right lock mechanism 90
A lock lever 90b is provided.
Reference numeral 0b indicates a pivot rod 92 welded to the base of the arm 93, and two arms 93a, 93a of a U-shaped bracket 93.
The upper rail 80 is pivotally supported so as to be rotatable in the vertical direction in parallel with the front-rear direction. In such a case, the bracket 9
Reference numeral 3 denotes a bottom wall 93b which is welded to a vertical inner wall of a cover plate 100 having a U-shaped cross section which is mounted upright on the upper wall 81 of the upper rail 80.

At the tip of the lock lever 90b, forked claws (lock claws) 94a, 94a are formed, and both claws (lock claws) 94a, 94a
By turning in the direction opposite to the arrow D of 0b, the lock plate 90a engages with both corresponding lock holes (engagement holes) 91, 91. On the other hand, these two claws (lock claws) 94a, 94
a is a corresponding lock hole (engagement hole) of the lock plate 90a due to the rotation of the lock lever 90b in the direction of arrow D.
1 and 91 are released. This means that the lock mechanism 90 locks the upper rail 80 to the lower rail 70 by engaging the two claws (lock claws) 94a, 94a into the corresponding lock holes ( engagement holes) 91, 91. This means that the lock is released by disengaging the two claws (lock claws) 94a, 94a from engagement with the corresponding lock holes ( engagement holes) 91, 91. In addition, related
I have used a sign that is not, but a forked claw (lock claw)
94a is a part of the lock lever 90b,
-90b and the claw (lock claw) 94a are integral members.
You.

A crank portion 92a is provided at the front end of the rotating rod 92, while a torsion spring 95 is coaxially fitted to the rear end 92b of the rotating rod 92. The torsion spring 95 has a pivot rod 9 at both ends thereof.
The second crank portion 92a is welded between the rear arm portion 93a of the bracket 93 and the rear end portion 92b of the rotating rod 92 so as to urge the front end portion of the second crank portion 92a in the direction of arrow D in FIG.
Accordingly, when the rotating rod 92 is at the rotating position shown in FIG. 1, the locking operation of the lock mechanism 90 is realized under the torsional reaction force of the torsion spring 95. On the other hand, when the crank portion 92a of the rotating rod 92 is rotated at the distal end thereof in the direction of arrow D against the torsional reaction force of the torsion spring 93, the locking mechanism 9 is rotated.
The lock operation of 0 is released.

A right operating mechanism 110 is provided on the right seat rail RR as shown in FIG. The right operating mechanism 110 includes an operating rod 111. The operating rod 111 has a front end crank portion 111a, which is attached to a bracket 112 which is fastened to a stay 101 welded to the front end of the cover plate 100. It is rotatably supported by the U-shaped rear wall 112a. on the other hand,
The operating rod 111 is attached to the cover plate 1 at the rear end crank portion 111b similarly to the front end crank portion 111a.
Wall portion 11 of L-shaped bracket 113 fastened to 00
3a is rotatably supported by the shaft 3a. In such a case, the operating rod 111 is supported by the cover plate 100 such that the distal ends of both the crank portions 111a and 111b extend in parallel with the upper rail 80.

The right operating mechanism 110 has an operating lever 114 having a substantially L-shape.
4 is a pin 114b at the front and rear walls provided at the base.
As a result, the cover plate 100 is pivotally supported on a part of the upper wall so as to be vertically rotatable. In such a case, the operation lever 114 is provided with a left-side tension spring (not shown) (cover plate 1).
1 and a part of the operation lever 114) is urged to rotate in the direction of arrow F in FIG. 1 around the pin 114b. Further, the operation lever 114 is loosely fitted to the central portion 111c of the operation rod 111 at respective long holes 114a, 114a formed in the front and rear walls provided at the base thereof. Thus, when the operation lever 114 is rotated in the direction opposite to the arrow F against the left-side tension spring, the operation rod 111
At the central portion 114a, the operation lever 114 is guided by the two elongated holes 114a, 114a to rotate in the direction of arrow E. On the other hand, when the operation lever 114 is rotated in the direction opposite to the arrow F by the left-side tension spring, the operation rod 11
1 is guided at its central portion 114a by both long holes 114a, 114a of the operation lever 114, and rotates in the direction opposite to the arrow E.

The link lever (link member) 115, at its rotation center portion 115a, which is concentrically welded to the rear crank portion 111b of the operating rod 111, the link lever (link member) 115, the operation In accordance with the rotation of the rear end crank portion 111b of the operation rod 111 in the direction of arrow E accompanying the rotation of the lever 114 in the direction of arrow F, the lever 114 engages with the crank portion 112a of the rotation rod 112 in the direction of arrow D ( (The direction to release the lock). On the other hand, this link lever (link member) 115
When the operation lever 114 rotates in the direction opposite to the arrow F, the rear end crank portion 111b of the operation rod 111 rotates in the direction opposite to the arrow E based on the torsional reaction force of the torsion spring 113. Then, it is engaged with the crank portion 112a of the rotating rod 112 from the left side, and is rotated while being pushed in the direction opposite to the direction of the arrow D (the direction of achieving the lock).

Further, the above-mentioned left and right seat rails R
Between L and RR, both link cables 120 and 130
Are connected. The link cable 120 has a link wire (first wire) 121, and the link wire (first wire) 121 has a left end 121 thereof.
a, the link lever of the left seat rail RL (link
(Member) 65 is movably fitted to the upper end 65b of the cap 65 so as to prevent it from falling off. Also, this link wire (first wire)
The right end 121b of the 121 is fitted to the front connecting portion 94b of the right lock lever 90b. The link cable 120 is a link wire (first wire) 121.
The outer cable 122 is fitted to the protruding wall 51 of the cover plate 50 at its left end 122a. The right end 122b of the outer cable 122 is fitted to an extension wall (not shown) of the cover plate 100. Thereby, when the link lever (link member) 65 rotates in the direction of arrow B shown in FIG. 1, the lock lever 90 b is pulled by the link cable 121 so as to release the lock of the right lock mechanism 90.

On the other hand, the link cable 130 has a link wire (second wire) 131, and the link wire (second wire) 131 is connected to the right end 13 thereof.
1a, the link lever ( link) of the right seat rail RR
The member 115 is movably fitted to the upper end 115 b of the 115 and is prevented from coming off. In addition, this link wire (second wire )
The left end 131 b of the 131 is the left lock lever 4.
0b is fitted to the front connection portion 44b. The link cable 130 is a link wire (second wire)
Outer cable 13 with slidably fitted 131
The outer cable 132 is fitted to the protruding wall portion 101 of the cover plate 100 at a right end 132a thereof. The left end 132 b of the outer cable 132 is fitted to the extension wall of the cover plate 50. As a result, the link lever (re
The lock lever 90 b is pulled by the link cable 131 so as to release the lock of the right lock mechanism 90 when the link member 115 rotates in the direction of arrow E in the figure.

The two reclining mechanisms 10c, 10c
d is selectively operated, and both seat rails R associated with the forward and backward movement of the seat back portion 10b of the bench seat 10 are set.
Each of the reclining mechanisms 10 and 10 is configured in the same manner to perform the walk-in operation of L and RR.
c and 10d are connected to the respective seat rails RL and RR via the respective link cables 140 and 150. The link cable 140 is a link wire (third wire ).
141 ) and the link wire (third).
The wire 141 is fixed to a lower portion 65c of a left link lever (link member) 65 at a distal end portion 141a, and a base end portion 141b of the link wire (third wire) 141 is connected to the reclining mechanism 10c. It is fixed to the operation unit. Further, the link cable 140 includes an outer cable 142 in which a link wire (third wire) 141 is slidably fitted. Is fitted to the protruding wall portion 51 of the main body. The base end 142 b of the outer cable 142 is fitted to the rear wall of the cover plate 50. Thus, when the reclining mechanism 10c is operated by the operation section, the link lever (link member) 65 is pulled by the link cable 140 and rotates in the direction of arrow C. On the other hand, when the operation of the operation unit of the reclining mechanism 10c is released, the operation unit of the reclining mechanism 10c returns to the original position, and the link lever (link member) 65 is linked via the link wire (third wire) 141. Rotation in the direction opposite to the arrow C direction is allowed.

The link cable 150 has a link wire (third wire) 151, and the link wire (third wire) 151 has a distal end 151 thereof.
At (a) , it is fixed to the lower part 115c of the right link lever (link member) 115, and the link wire (third
The proximal end 151b of the wire 151 is fixed to the operation unit of the reclining mechanism 10d. The link cable 150 is a link wire (third wire) 15
1 is slidably fitted with the outer cable 152, and the outer cable 152 has a distal end portion 152 a at which the projecting wall portion 10 of the cover plate 100 extends.
1. The proximal end 152b of the outer cable 152 is fitted to the rear wall of the cover plate 100. Thereby, the reclining mechanism 10d
Is operated by the operation section, the link lever (link
115 ) is pulled by the link cable 150 and rotates in the direction of arrow D. On the other hand, when the operation on the operation unit of the reclining mechanism 10d is released, the reclining mechanism 1
0d is returned to the original position and the link wire (third
Link lever via a wire) 151 (link member)
115 is allowed to rotate in the direction opposite to the direction of arrow D.

In this embodiment configured as described above,
It is assumed that both the seat rails RL and RR are in a state shown by a solid line in FIG. In such a state, if the grip portion of the operation lever 64 of the left seat rail RL is operated upward as shown in FIG. 3, the operation lever 64 is fastened to its base (a portion of the cover plate 50 is fastened). ) In the direction of arrow A. Then, the operation rod 61
Is guided by the two long holes 64a, 64a of the operation lever 64 at its central portion 61c, and rotates in the direction of arrow B, so that the link lever (link member) 65 moves together with the operation rod 61 in the same direction. The rotating rod 42 rotates in the direction of arrow C (the same direction as the direction of arrow B) while being pushed by the crank portion 42a against the torsional reaction force of the torsion spring 43, The lock lever 40b rotates in the same direction to disengage both claws (lock claws) 44a, 44a from the corresponding lock holes (engagement holes) 41, 41 of the lock plate 40a. Further, the link cable 120 is pulled by the link wire (first wire) 121 along with the rotation of the lock lever 40b, and the lock lever 90b of the right seat rail RR is moved together with the rotation rod 92 together with the torsion spring 95. Pivots in the direction of arrow D against the torsional reaction force of
(Lock claws) 94a, 94a are disengaged from the corresponding lock holes (engagement holes) 91, 91 of the lock plate 90a. As a result, the locked state of both the lock mechanisms 40 and 90 is released at the same time, and the front and rear positions of the bench seat 10 can be adjusted.

In the above state, the bench seat 10
When the seat portion 10a is moved forward or rearward by a desired amount, the upper rails 30, 80 slide along the lower rails 20, 70 in the two seat rails RL, RR. Thus, the position of the seat portion 10a, that is, the position of each of the upper rails 30, 80 with respect to each of the lower rails 20, 70 is adjusted. Thereafter, when the grip portion of the operation lever 64 is released, the operation lever 64 is pulled downward by the left-sided extension spring, and is turned in the direction of the arrow shown in FIG. 4 (the direction opposite to the arrow A). The operation rod 61 is moved at its central portion 61c by the long holes 64a, 64a of the operation lever 64.
The link lever (link member) 65 is rotated together with the operation rod 61 in the same direction as the guide lever 4a to rotate in the direction opposite to the arrow B so as to release the pushing on the rotation rod 42. I do. Then, the rotating rod 42 is moved to the torsion spring 4.
5 to rotate in the direction opposite to the arrow C, the lock lever 40b rotates in the same direction, and the both claws (lock
The claws 44a, 44a are engaged with the corresponding lock holes ( engagement holes) 41, 41 of the lock lever 40b. Further, with the rotation of the link lever (link member) 65 in the direction opposite to the arrow B as described above, the lock lever 90 b receives the torsional reaction force of the torsion spring 95, and the link wire ( While pulling the first wire 121, it turns in the direction opposite to the arrow D, and its claws (lock claws) 94
lock holes 90a and 94a of the lock plate 90a
(Engagement holes) The engagement holes 91 and 91 are respectively engaged. At this time, the link wire (first wire ) of the link cable 120 is used.
The lock 121 is locked at its left end 121a to the lock surface of the link lever (link member) 65 with respect to the upper end 65b. Thereby, re-locking of both lock mechanisms 40 and 90 after the position adjustment of bench seat 10 can be achieved simultaneously.

In the above process, for example, when the bench seat 10 bends in its length direction when the bench seat 10 is adjusted in the front-rear direction, it is determined that the lock of the left locking mechanism 40 is properly performed. Also, each claw (lock claw) of the lock lever 90b of the right lock mechanism 90 9
4a and 94a are displaced from the corresponding lock holes of the plurality of lock holes ( engagement holes) 91 to 91 of the lock plate 90a, and are not engaged with these lock holes. May occur. However, in such a case, since the left upper rail 80 is displaced in the front-rear direction with respect to the lower rail 70 in the front-rear direction due to the bending of the bench seat 10, the link wire (first wire) of the link cable 120 is used. The left end 121a of the 121 is located leftward from the locking surface of the link lever (link member) 65 with respect to the upper end 65b. Accordingly, by adjusting the position of the right upper rail 80 in the front-rear direction with respect to the right lower rail 70 while adjusting the position of the right side portion of the bench seat 10 in the front-rear direction, the above-described position shift is eliminated, and the right side lock is released. Each claw (lock claw) of the lock lever 90b of the mechanism 90 94
a, 94a properly engage with the corresponding lock holes ( engagement holes) 91, 91 of the lock plate 90a. Thereby, the two lock mechanisms 4 after the position adjustment of the bench seat 10 are performed.
Both locking of 0, 90 can be precisely achieved.

As described above, the left operating lever 64
When both the lock mechanisms 40 and 90 are unlocked under the above operation and the position of the bench sea 10 is adjusted in the front-rear direction, even if the re-lock of the left lock mechanism 40 is achieved, as described above. Each of the claws (lock claws) 94a, 9 of the right lock lever 90b for the deflection of the bench seat 10
4a is a corresponding lock hole (engagement) of the lock plate 90a.
Holes) 91, 91 may be displaced from and disengaged therefrom. In such a case, as described above, the rotating rod 42 is formed separately from the operating rod 61 and has an interlocking relationship via the link lever (link member) 65. The wire (first wire) 121 is connected to its left end 12
At 1a, the upper end 6 of the link lever (link member) 65
Since the position of the right side of the bench seat 10 is adjusted in the front-rear direction, the position of the right upper rail 80 is adjusted in the front-rear direction with respect to the right lower rail 70 because the left side is left away from the locking surface for the 5b. By
As described above, relocking of the right lock mechanism 90 can be realized independently of the left lock mechanism 40. In addition, the above operation and its operation and effect are performed by the right operation lever 114.
Can be easily understood from the left-right symmetrical configuration of both seat rails RL and RR even when is operated (see FIG. 5).

In order to adjust the position of the bench seat 10 by the walk-in operation, instead of operating the operation lever 64, the operation portion of the left reclining mechanism 10c is operated to tilt the seat back portion 10b forward. , Link lever (link member) 65 is a link wire (third wire ).
Pulled by Ja) 141 rotates in the direction of arrow C, to unlock the left lock mechanism 40. At the same time, the link wire (first wire) 121 is
(Link member) 65 is also pulled in accordance with the rotation in the direction of arrow C to unlock the right locking mechanism 90.
Thereby, the walk-in operation can be performed forward along the two seat rails RL and RR in order to adjust the position of the bench seat 10. After that, when the bench seat 10 is moved rearward with the seat back portion 10b standing up and the operation of the operation portion of the left reclining mechanism 10c is released, the operation portion returns to the original position. Link wire
(Third wire) The pulling force against the 141 disappears, and the link lever (link member) 65 rotates together with the rotating rod 42 in the direction opposite to the arrow C under the torsional reaction force of the torsion spring 45. When the bench seat 10 is retracted to a predetermined set position, the left locking mechanism 40 is automatically re-locked. At the same time, the link wire (first
Link lever (link part ) for 121
The lock lever 90b rotates in the direction opposite to the arrow D under the release of the pulling force of 65 and the torsional reaction force of the torsion spring 95, and the right locking mechanism 90 is automatically re-locked.

In the above-described walk-in operation, even if the right side of the bench seat 10 is bent and the left lock mechanism 40 alone is re-locked, the left operation lever 64 is not moved. With the same positional deviation adjustment as when the lock of the right lock mechanism 90 is not possible due to the release of the operation, the relock of the right lock mechanism 90 can be realized independently of the relock of the left lock mechanism 40. . Also, such effects are
This can be realized substantially in the same manner when the walk-in operation is performed by operating the operation unit of the right reclining mechanism 10d and then the operation of the operation unit is released.

The operation levers 64 and 11 described above are used.
4 or the walk-in operation of both seat rails RL and RR by either of the reclining mechanisms 10c and 10d.
This is performed in relation to each lock hole drilled behind the substantially center of the lock plate 40a or 90a. The present invention is not limited to the bench seat 10 but may be applied to various types of vehicle seats.

[0035]

As described above, the vehicle seat according to the present invention is provided.
When locking, the trailing device
The mechanism that operates independently enables the bench seat
The width of the rails is so long that the left and right upper rails
Even if the position is expected to shift slightly,
Lock that can be locked easily
The effect is excellent.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing one embodiment of the present invention.

FIG. 2 is an operation explanatory diagram when the operation lever 64 is at an original position.

FIG. 3 shows an operation lever 64 or a reclining mechanism 10
It is an operation explanatory view when unlocking both lock mechanisms by the operation of c.

FIG. 4 shows an operation lever 64 or a reclining mechanism 10
It is operation | movement explanatory drawing of the state which can re-lock both lock mechanisms by operation c.

FIG. 5 is an operation lever 114 or a reclining mechanism 1
It is an operation explanatory view of a state where both lock mechanisms can be re-locked by the operation of 0d.

[Description of Signs ] 20 Left lower rail 30 Left upper rail 40b Left lock lever (integral with lock claw 44a)
41 ) Left lock hole (engagement hole) 42 Left rotation rod (integral with lock claw 44a )
Tsu members) 44a left claw (locking pawl) 45 left of the torsion spring (urging means) 61 is fixed to the left side of the operating rod (link lever 65
64 ) Left operating lever (operating means) 65 Left link lever (link member) 70 Right lower rail 80 Right upper rail 90b Right locking lever (integral with lock claw 94a)
91 ) Right lock hole (engagement hole) 92 Right rotation rod (integral with lock claw 94a )
Tsu members) 94a right claw (lock pawl) 95 right of the torsion spring (biasing means) 111 fixed to the right side of the operating rod (link lever 115
114 ) Right operating lever (operating means) 115 Right link lever (link member) 121 Link wire (first wire) 131 Link wire (second wire) 141 Link wire (third wire) 151 Link wire (third wire)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60N 2/08

Claims (3)

(57) [Claims] 1. A pair of left and right lower rails fixed to a vehicle floor, a pair of left and right upper rails slidably supported by the lower rails and on which a seat is mounted, and left and right formed on the left and right lower rails. A plurality of engaging holes, and swingably supported on the left and right upper rail sides.
The left and right engaging hole engageable releasable left and right locking pawl which the locking pawl of the right and left engagement hole and the engagement of the right and left
Left and right springs biasing to rotate in the direction, operating means disposed around the seat, and following the operation of the operating means, the left and right locking claws resist the biasing force of the left and right springs. And an operation lock cooperation mechanism for disengaging the left and right engagement holes from each other, wherein the operation lock cooperation mechanism supports the upper rail on the upper rail.
A link member that moves in accordance with the operation of the operating means.
Therefore, when the unlocking operation is performed,
Abuts against a member integrated with the lock claw to push the lock claw
Rotate against the urging force of the spring
Detachable from lock claw or member integrated with lock claw
A possible link member and a lock claw on the right or a part integrated with the lock claw
First wire for connecting a member to the link member on the left side
And a part integrated with the lock claw or the lock claw on the left side
Second wire connecting the link member with the right link member
When provided with, the direction of operation of unlocking, the link member is transmitted to forcibly said left and right locking pawl in the direction of operation only to unlock from the operating means, the direction of operation of locking, Depending on the operation of the link member
Not, the right and left locking pawls are mechanisms that obtained by engaging the left and right engaging holes on the left and right independently by the biasing force of the left and right springs, the seat rail and wherein the. Wherein said operating means is a lever, the seat rail apparatus according to claim 1, characterized in that it has a mechanism to move the link member by being driven by the movement of the operating lever. 3. The operating means is a seat back,
Seat rail arrangement according to claim 1, further comprising a third wire for connecting the link member and the member to rotate the seat back and integrally.