JPH115470A - Locking mechanism for seat sliding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply form up a slide locking mechanism and an interlocking member, reduce both parts in number and processing manhours, concurrently, facilitate its assembling works, and thereby enhance its economy. SOLUTION: The base 16 of a reclining mechanism 15 is mounted onto a movable rail 13, one end of an interlocking wire 18 is connected with an arm 17, a first link 23 and a second link 33 connected with the first link 23 by way of an interlocking pin 22, are provided for the movable rail 13, and the other end of the interlocking wire 18 is thereby connected with the first link 23. A slide locking mechanism 21 is brought into a lock releasing condition by reclining the arm 17 forward. The second link 33 is put into its turning movement by letting the first link 23 be put into its turning movement, and the locking part of an interlocking member 31 and a latch part are thereby kept in a condition capable of being locked. The interlocking member 13 is put into a locking condition by letting the movable rail 13 be slid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking mechanism for a seat slide device, and more particularly, to a locking mechanism for a seat slide device, comprising a fixed rail and a movable rail that moves back and forth along the fixed rail. A slide lock mechanism is provided on one side between the fixed rail and the movable rail, and an interlock member is provided on the other side between the fixed rail and the movable rail, and the seat can be locked at a predetermined position in a locked state of the interlock member. The present invention relates to a locking mechanism for a seat slide device configured as described above.

[0002]

2. Description of the Related Art In a conventional one-box car or the like,
Since both occupant loading and luggage loading are used, an average number of seats and luggage loading space are provided. In addition to the driver seat and the passenger seat, there are cases where a detachable seat is provided and cases where a movable seat is provided.

Further, a base of a reclining mechanism is mounted on the movable rail side, a seat back is mounted on an arm of the reclining mechanism, and the seat back is provided so as to be capable of tilting forward and backward. Something to use as a table exists.

However, when the seat back is tilted forward, the slide lock mechanism is unlocked, and there is a risk that the seat will move when the seat is lifted up or when the back side of the seat back is used as a table. Was.

Further, in the vehicle seat device disclosed in Japanese Utility Model Laid-Open No. 4-131533, Japanese Utility Model Publication No. Hei 6-11226, etc., the slide lock is released only when the seat cushion is lifted up. From that
There is a disadvantage that the adjustment of the front-rear position becomes complicated in a normal sitting state.

For this reason, a range where the seat can be seated and a range where the seat cannot be seated are provided on the fixed rail, an interlock member is provided on the movable rail, and the seat cannot be seated in the locked state of the interlock member. Conventionally, a lock mechanism of a seat slide device configured to be unable to move to a possible range has been already proposed.

[0007]

However, in the above-mentioned conventional seat slide apparatus, a slide lock mechanism must be provided in a range where the seat can be seated, and an interlock member for locking the seat at a predetermined position must be provided. In addition, since the slide lock mechanism and the interlock member are provided at different positions, the number of parts and the number of processing steps are increased, the assembling work is complicated, and the cost is increased.

The present invention has been made in view of such circumstances, and the structure of the slide lock mechanism and the interlock member has been improved, the number of parts and the number of processing steps have been reduced with a simple configuration, and the assembling work has been simplified. Therefore, it is an object of the present invention to obtain an economical locking mechanism for a seat slide device.

[0009]

According to a first aspect of the present invention, there is provided a locking mechanism for a seat slide device, comprising: a fixed rail;
A front and rear slide mechanism including a movable rail that moves back and forth along the fixed rail; a slide lock mechanism is provided on one side between the fixed rail and the movable rail; and an interlock is provided on the other side between the fixed rail and the movable rail. Provide a lock member,
In a lock mechanism of a seat slide device configured to be able to lock a seat at a predetermined position in a locked state of the interlock member, a base of a reclining mechanism is attached to the movable rail side, and an interlocking wire is connected to an arm of the reclining mechanism. One end is connected, a first link is provided to the movable rail, and a second link is connected to the first link via a link pin. The other end of a link wire is connected to the first link. Tilting the arm of the reclining mechanism forward to pull the interlocking wire, turning the first link by the interlocking wire, turning the operation lever of the slide lock mechanism by turning the first link, A plurality of slide lock holes provided on the fixed rail or the movable rail, and a plurality of slide lock holes provided on the movable rail or the fixed rail. The engagement state with the slide lock pawl locked in the slide lock hole is released, and the rotation of the first link rotates the second link connected via the interlocking pin, thereby causing the interlock. The interlocking portion of the member and the interlock lever having a latch portion locked by the interlocking portion are held in a lockable state, and the movable rail of the front-rear sliding mechanism is slid in the front-rear direction. Thereby, the interlock locking portion of the interlock member and the interlock lever can be engaged with each other.

According to a second aspect of the present invention, there is provided a locking mechanism for a seat slide device, wherein a fixed bracket is provided on an upper portion of a movable rail, an interlocking pin is pivotally supported on the fixed bracket, and a first link and a second link are provided. Are rotatably provided on both sides of the fixed bracket.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A lock mechanism of a seat slide device according to the present invention will be described below in detail with reference to the drawings. FIG.
(A), (b) to FIG. 4 (a), (b), (c) show an embodiment of the lock mechanism of the seat slide device according to the present invention, and the front-rear slide mechanism 11 is a vehicle. A pair of left and right fixed rails 12 extending rearward from the front of the floor surface
And the pair of left and right movable rails 13 fitted and attached to the pair of left and right fixed rails 12 so as to be movable back and forth.
In this embodiment, only one side is illustrated and described.

A slide lock mechanism 21 of the front-rear slide mechanism 11 is provided on one side between the fixed rail 12 and the movable rail 13, and an interlock is provided on the outside on the other side between the fixed rail 12 and the movable rail 13. A member 31 is provided. The seat can be locked at a predetermined position when the interlock member 31 is locked.

A base 16 of a reclining mechanism 15 is attached to the movable rail 13 side, and an arm 17 of the reclining mechanism 15 is attached to one end 18a of an interlocking wire 18.
Are connected.

A fixed bracket 19 having a substantially U-shaped cross section is provided in the width direction of the upper portion of the movable rail 13, and an interlocking pin 22 is pivotally supported by the fixed bracket 19. The first link 23 and the second link 3
The first link 23 and the second link 33 are rotatably provided at both sides of the fixed bracket 19.

The other end 18b of the interlocking wire 18 is connected to the first link 23. The lower end of the first link 23 contacts the first trigger 27 connected to the operation lever 25 of the slide lock mechanism 21 as shown in FIGS. The lower end is an interlock member 31 as shown in FIGS.
Is in contact with the second trigger 35.

As shown in FIGS. 2A and 2B, the slide lock mechanism 21 has a plurality of slide lock holes 28a provided on the fixed rail 12 (or the movable rail 13) side.
And a slide lock claw 28b provided on the movable rail 13 (or the fixed rail 12) side and locked in the slide lock hole 28a. The slide lock claw 28b is urged in the lock direction by a torsion bar.

The interlock member 31 is provided on the side opposite to the side on which the slide lock mechanism 21 of the front-rear slide mechanism 11 is provided, and includes an interlock locking portion 37a provided on the fixed rail 12, and an interlock A second trigger 35 is provided as an interlock lever having a latch portion 37b locked by the locking portion 37a.

The second trigger 35 is connected to the second link 3
3 is urged by a helper spring 39 which is stretched between the first spring 3 and the second spring 3. Further, the interlocking portion 37a and the latch portion 37b can be configured in reverse.

Therefore, as shown in FIG. 1B, the arm 17 of the reclining mechanism 15 is tilted forward to pull the interlocking wire 18 in the direction of the arrow, and
When the first link 23 is rotated counterclockwise by
The first trigger 27 connected to the operation lever 25 of the slide lock mechanism 21 by the rotation of the first link 23
Rotates clockwise, and the engagement between the slide lock hole 28a provided in the fixed rail 12 and the slide lock claw 28b provided in the movable rail 13 is released.

Further, the rotation of the first link 23 causes the rotation of the second link 33 connected via the interlocking pin 22, and the interlock locking portion 37 a of the interlock member 31 interlocks with the interlock. The latch portion 37b of the second trigger 35 as a lever is held in a lockable state, and the movable rail 13 of the front-rear slide mechanism 11 is slid in the front-rear direction. 37a and the latch portion 37b of the second trigger 35 as an interlock lever can be engaged.

In the locked state of the interlock member 31, it is possible to restrict the movement of the seat when the seat is jumped up or the rear side of the seat back is used as a table. Further, by setting the seat back in the upright state, the locked state of the interlock member 31 is released, and the slide lock mechanism 21 is locked.

It should be noted that the present invention is not limited to the structure described in the above embodiment, and the shape, structure and the like of each part can be freely modified and changed as needed.

[0023]

As described above, according to the lock mechanism of the seat slide device according to the present invention, the base of the reclining mechanism is attached to the movable rail, and one end of the interlocking wire is connected to the arm of the reclining mechanism. A first link and a second link connected to the first link via a link pin on the movable rail, and the other end of a link wire connected to the first link, and an arm of the reclining mechanism; Is tilted forward to pull the interlocking wire, and the interlocking wire rotates the first link,
The operation lever of the slide lock mechanism is rotated by the rotation of the first link, and a plurality of slide lock holes provided on the fixed rail or the movable rail, and the slide lock provided on the movable rail or the fixed rail. The engagement state with the slide lock claw locked in the hole is released, and the rotation of the first link causes the second link connected via the interlocking pin to rotate, and the interlock member interlocks. By holding the lock locking portion and the interlock lever having the latch portion locked by the interlock locking portion in a lockable state, and sliding the movable rail of the front-rear sliding mechanism in the front-rear direction, Since the interlock locking portion of the interlock member and the interlock lever can be engaged, the number of parts and the number of parts can be reduced with a simple configuration. The number of processing steps is reduced, it is possible to obtain a lock mechanism better seat slide device easy and economical efficiency assembling work.

Further, according to the present invention, a fixed bracket is provided on the upper portion of the movable rail, an interlocking pin is pivotally supported on the fixed bracket, and the first link and the second link are respectively turned on both sides of the fixed bracket. The seat is movable so that the first link and the second link can be linked with each other, the number of parts and the number of processing steps can be reduced with a simple configuration, and the seating operation is easy and economical. A locking mechanism for the slide device can be obtained.

[Brief description of the drawings]

FIGS. 1A and 1B respectively show a slide lock mechanism side of a lock mechanism of a seat slide device according to the present invention, and FIG. 1A is a perspective view showing a state where an arm of a reclining mechanism is erected;
(B) is a perspective view of a state where the arm of the reclining mechanism is inclined forward.

FIGS. 2A and 2B each show a lock mechanism of the seat slide device according to the present invention, in which FIG. 2A is a cross-sectional view in which an arm of a reclining mechanism is erected, and FIG. Sectional drawing of a state.

3A and 3B respectively show an interlock member side of a lock mechanism of the seat slide device according to the present invention, and FIG. 3A is a perspective view in a state where an arm of a reclining mechanism is erected;
(B) is a perspective view of a state where the arm of the reclining mechanism is inclined forward.

FIGS. 4A and 4B respectively show an interlock member side of a lock mechanism of the seat slide device according to the present invention, wherein FIG. 4A is a side view in a state where an arm of a reclining mechanism is erected;
(B) is a side view of a state where the arm of the reclining mechanism is tilted forward, and (c) is a side view of a locked state of the interlock member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Front-back slide mechanism 12 Fixed rail 13 Movable rail 15 Reclining mechanism 16 Base 17 Arm 18 Interlocking wire 19 Fixed bracket 21 Slide lock mechanism 22 Interlock pin 23 First link 25 Operation lever 27 First trigger 28a Slide lock hole 28b Slide lock Claw 31 Interlock member 33 Second link 35 Second trigger 37a Interlock locking portion 37b Latch portion

Claims (2)

[Claims] 1. A front-rear slide mechanism comprising a fixed rail and a movable rail moving back and forth along the fixed rail, wherein a slide lock mechanism is provided on one side between the fixed rail and the movable rail. An interlock member provided on the other side between the movable rail and the movable rail, wherein the seat can be locked at a predetermined position in a locked state of the interlock member. A base is attached, one end of an interlocking wire is connected to the arm of the reclining mechanism, and a first link and a second link connected to the first link via an interlocking pin are provided on the movable rail, The other end of the interlocking wire is connected to the first link, and the arm of the reclining mechanism is tilted forward to form an interlocking wire. The first link is rotated by a pulling and interlocking wire, and the operation lever of the slide lock mechanism is rotated by the rotation of the first link, and a plurality of slide lock holes provided on the fixed rail or the movable rail side. ,
The engagement state with the slide lock claw provided on the movable rail or the fixed rail side and locked in the slide lock hole is released, and the second link connected via the interlocking pin by the rotation of the first link Slides back and forth to lock the interlocking locking portion of the interlocking member and the interlocking lever having the latch portion locked by the interlocking locking portion in a lockable state. A lock mechanism for a seat slide device, wherein a movable rail of the mechanism is slid in the front-rear direction so that an interlocking locking portion of the interlock member and an interlock lever can be engaged. 2. A fixed bracket is provided on an upper portion of the movable rail, an interlocking pin is pivotally supported on the fixed bracket, and the first link and the second link are rotatably provided on both sides of the fixed bracket. The lock mechanism for a seat slide device according to claim 1, wherein: