JPH06247196A - Vehicular seat - Google Patents

Abstract

PURPOSE:To provide a vehicular seat releasing and advancing no locking mechanism by providing a slide locking and releasing mechanism allowed to move back and forth on rails and for the seat forwardly folding a seat back, a coupling wire for the actuating site of a forward-folding mechanism, and a connecting pin for interlocking forward-folding and locking release. CONSTITUTION:In installing an engaging rail unit 10 having back-and-forth movable engagement, and a seat supported in a forward-folding state by means of a reclining device mechanism 20 in a car, the tip of a slide locking and releasing lever 30 is not coupled to the inner wire 51 of a coupling wire 50. In forwardly folding a seat back by operating the reclining device 20 by means of a pin member 40, the slide locking and releasing lever 30 is not interlocked to advance no seat cushion due to energized power. Thus, a car side rail and a seat side rail retain their positions provided at the time of assembly. No walk-in operation is followed. Thus, side rails 11, 15 are not required to return to the positions provided at the time of assembly in the initial seat setting stage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a pair of slide rails in which a rail unit is fitted so as to be relatively movable back and forth, and a seat is movably fixed to the mounting portion through the rail unit. The present invention relates to a vehicle seat in which a seat back is supported by a seat cushion so as to be able to move forward through a reclining device mechanism.

[0002]

2. Description of the Related Art As a conventional vehicle seat, for example,
There is one as shown in FIG. That is, the rail unit 1 is composed of a seat-side rail 2 and a vehicle-body-side rail 3, a seat cushion is supported by the seat-side rail 2, and a seatback is supported by the seat-side rail 2 via a reclining device 6. It is supported so that it can be defeated. The reclining device 6 is provided with a slide lock release lever 7, and the slide lock release lever 7 and the arm member 8 are provided.
The pin member 8a on the side is connected by the connecting wire 9, and when the arm member 8 is tilted forward, the slide lock release lever 7 is interlocked via the connecting wire 9, and the lock mechanism (not shown) is in the unlocked state, and the biasing force is applied. Thus, the rail 2 on the seat side moves forward with respect to the rail 3 on the vehicle body side.

On the other hand, when a seat is mounted on a vehicle, the relative position of the rail 2 on the seat side and the rail 3 on the vehicle body side is determined at the time of assembling because of the ease of assembling the vehicle body.

[0004]

However, in such a conventional vehicle seat, when the seat is carried into the vehicle body to be mounted on the vehicle, for example, if the seat back is tilted forward so as to be easily carried in the arm, Since the member 8 is integrally tilted forward and the slide lock release lever 7 is interlocked, the lock mechanism is in the unlocked state, and the seat-side rail 2 moves forward with respect to the vehicle-body-side rail 3 due to the urging force.
It is necessary to return the seat to the position at the time of assembling and then assemble the seat.

Further, providing the switching mechanism to enable the walk-in operation or to disable the walk-in operation causes a problem in that the structure becomes complicated and the cost increases.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a vehicle seat having a simple structure and capable of improving workability on a vehicle. There is.

[0007]

The gist of the present invention for achieving the above-mentioned object is to: 1 A pair of slide rails (11, 15) in which a rail unit (10) is fitted so as to be relatively movable back and forth. ), A seat is movably fixed to the installation portion through the rail unit (10), and a seat back is supported by a seat cushion so as to be tiltable forward through a reclining device mechanism (20). In a vehicle seat, a slide lock release lever (30) for releasing the state in which the pair of slide rails (11, 15) are relatively immovably restrained in the front-rear direction, and a seat back when the seat back is tilted forward. Reclining device mechanism (2
A connecting wire (50) whose base end is connected to the operating part (22, 40) of (0) and whose tip extends forward.
The seat back is supported by the vehicle body so as to be movable back and forth, and when the seat is mounted on the vehicle, the front end of the connecting wire (50) and the front end of the slide lock release lever (30) are locked to each other. A vehicle seat, comprising: a coupling pin (60) which is capable of advancing a seat cushion by interlocking with the slide lock release lever (30) when the vehicle is tilted.

2 The reclining device mechanism (2
0) has a base member (21) attached to a seat cushion, and an arm member (22) pivotally attached to the base member (21) so as to be tiltable and supporting a seat back. ) Is used as an operating part of the reclining device mechanism (20).

[0009]

When the seat is mounted on the vehicle, the tip of the slide lock release lever (30) and the tip of the connecting wire (50) are not connected to each other. Therefore, the reclining device mechanism is operated to bring the seat back forward. In this case, the slide lock release lever (30) does not interlock, the seat cushion does not move forward, and the pair of slide rails (11, 15) maintain the assembled position. Thereby, the seat can be easily mounted on the vehicle.

A coupling pin (60) is supported on the vehicle body side so as to be movable back and forth. The tip end of the connecting wire (50) is locked to the coupling pin (60) and the slide lock release lever (30). The tip is locked to the connecting pin (60). As a result, the tip of the connecting wire (50) and the tip of the slide lock release lever (30) are connected.

When the reclining device mechanism (20) is operated and the seat back is tilted forward after the seat is mounted on the vehicle, the slide lock release lever (30) is interlocked to unlock the lock mechanism, for example. The pair of slide rails (11, 15) can relatively move back and forth, and the seat cushion moves forward due to the urging force, and the walk-in operation becomes possible.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment of the present invention. As shown in FIGS. 1 and 2, the rail unit 10
Includes a vehicle-body-side rail 11 fixed to the vehicle body and a seat-side rail 15 that is fitted to the vehicle-body-side rail 11 so as to be movable back and forth and supports a seat.

Support brackets 12 are fixed to the front and rear of the vehicle body side rail 11, the seat side rail 15 is attached to a seat cushion (not shown), and the seat back is tilted forward through the reclining device mechanism 20. Supported as possible. Rail unit 10
The vehicle is provided with a lock mechanism (not shown) for restraining the rail 11 on the vehicle body side and the rail 15 on the seat side so that they cannot move relative to each other.

The reclining device mechanism 20 has a base member 21 and an arm member 22 pivotally attached to the base member 21 so as to be tiltable. The arm member 22 is biased by a winding spring 23 in a forward direction. An upper tooth 24 is formed at a lower end portion of the arm member 22, and the base member 2
1 is provided with a lower tooth 25 which is engaged with and disengaged from the upper tooth 24 and restrains the seat back at a desired tilt angle via the arm member 22. The lower tooth 25 is biased in a direction in which it engages with the upper tooth 24. Also,
The base member 21 has a lower tooth 25 and an upper tooth 24.
An operation lever (not shown) is provided for forcibly separating from. Further, the lock mechanism is unlocked on the base member 21 so that the rail 11 on the vehicle body side is
A slide lock release lever 30 is provided to allow relative movement between the seat and the rail 15 on the seat side. The slide lock release lever 30 is urged toward the unlocked position. A through hole 31 is formed at the tip of the slide lock release lever 30.

A pin member 40 is implanted in the arm member 22 at a position away from the pivotally mounted portion and displaced rearward when the arm member 22 is tilted forward. The proximal end portion of the inner wire 51 is connected, the distal end portion of the inner wire 51 of the coupling wire 50 is extended to the distal end side of the slide lock release lever 30 at the front, and the longitudinal direction of the distal end portion of the inner wire 51 is the longitudinal direction. The long hole 53 is formed. The outer casing 52 of the connecting wire 50 is fixed to the base member 21.

A guide member 61 having a crank-shaped cross section is fixed to the vehicle body floor 1, and a guide groove 62 having a longitudinal direction in the front-rear direction is formed in the upper surface of the guide member 61. The coupling pin 60 is fitted in the guide groove 62 so as not to come off and to be movable back and forth. The connecting pin 60 includes a through hole 31 of the slide lock release lever 30 and a connecting wire 5.
The long holes 53 of 0 are fitted to each other and connect the tip of the slide lock release lever 30 and the tip of the connecting wire 50. A retaining ring 63 is fitted to the tip of the coupling pin 60.

Next, the operation will be described. A coupling pin 60 is supported on the vehicle body floor via a guide member 61 so as to be movable back and forth along a guide groove 62. When the seat is mounted on the vehicle, the connecting pin 60 is not fitted into the through hole 31 of the slide lock releasing lever 30 and the long hole 53 of the inner wire 51 of the connecting wire 50, and the tip portion of the slide lock releasing lever 30 is in the state. Since the front end of the inner wire 51 of the connecting wire 50 is not connected, when the reclining device mechanism 20 is operated by the pin member 40 and the seat back is tilted forward, the slide lock release lever 30 does not interlock, The seat cushion does not move forward due to the biasing force. That is, the rails on the vehicle body side and the rails on the seat side maintain the positions at the time of assembly, and the seat can be easily mounted on the vehicle.

Before or after the seat is mounted on the vehicle, the long hole 53 of the inner wire 51 of the connecting wire 50 is fitted into the connecting pin 60, and the slide lock releasing lever 3 is inserted.
The zero through hole 31 is fitted to the coupling pin 60. As a result, the distal end portion of the inner wire 51 of the coupling wire 50 and the distal end portion of the slide lock release lever 30 are coupled via the coupling pin 60.

When the reclining device mechanism 20 is operated and the seat back is tilted forward after the seat is mounted on the vehicle, the arm member 22 is integrally tilted forward and the pin member 4 is moved forward.
0 is displaced rearward, and the inner wire 51 of the connecting wire 50
The front end of the slide lock release lever 30 is pulled rearward through the. At this time, the coupling pin 60 has the guide groove 62.
Move backwards along. Slide lock release lever 3
When the leading end of 0 is pulled, the lock mechanism (not shown) is unlocked, and the rail 15 on the seat side moves toward the rail 1 on the vehicle body side.
The seat cushion can be moved forward and backward with respect to 1, and the seat cushion can be moved forward via the rail 15 on the seat side by the urging force to perform a walk-in operation.

Similarly, when the slide lock release lever 30 is operated to adjust the front-back position of the seat after the seat is mounted on the vehicle, the coupling pin 60 causes the guide pin 62 and the long hole 5 to move.
3, the inner wire 51 of the connecting wire 50 does not operate, and the reclining device mechanism 20 does not operate. In addition, when the reclining device mechanism 20 is operated to adjust the inclination angle of the seat back after the seat is mounted on the vehicle, the inner wire 51 of the connecting wire 50 is pushed and pulled through the arm member 22 and the pin member 40. However, since the coupling pin 60 does not move and the elongated hole 53 of the inner wire 51 moves back and forth, the slide lock release lever 30 does not interlock and the lock mechanism does not unlock.

In the above embodiment, the operating portion of the reclining device mechanism 20 is the pin member 40 implanted in the arm member 22. However, when the walkin lever is provided, the operating portion is increased. The slide lock release lever may be interlocked with the walk-in lever.

[0022]

According to the vehicle seat of the present invention,
Since the slide lock release lever is not linked to the forward movement of the seat back when the seat is mounted on the vehicle,
Since the lock mechanism does not unlock and the walk-in operation does not occur, for example, it is not necessary to return the slide rail to the assembling position when the sheet is initially loaded, and the workability on the vehicle can be improved.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a vehicle seat showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part of FIG.

FIG. 3 is a partial perspective view of a vehicle seat showing a conventional example.

[Explanation of symbols]

 10 ... Rail unit 11 ... Car body side rail 15 ... Seat side rail 20 ... Reclining device mechanism 21 ... Base member 22 ... Arm member 30 ... Slide lock release lever 40 ... Pin member (operating part) 50 ... Connecting wire 51 ... Inner wire 60 ... Coupling pin

Claims (2)

[Claims] 1. A rail unit is composed of a pair of slide rails that are fitted so as to be relatively movable back and forth, and a seat is movably fixed to the installation portion via the rail unit, and a reclining device mechanism is used. A vehicle seat in which a seat back is supported by a seat cushion so that the seat back can be tilted forward, and a slide lock release lever for releasing a state in which the pair of slide rails are relatively restrained from moving forward and backward, and a seat. The reclining device mechanism, which operates when the back is tilted forward, has its proximal end connected to the operating part, and the connecting wire with the tip extending forward and the vehicle body side supported so that it can move back and forth. When doing so, lock the front end of the connecting wire and the front end of the slide lock release lever respectively to move the seat back forward. The slide lock the vehicle seat, characterized in that the release lever seat cushion in conjunction has a coupling pin which is adapted advanceable upon. 2. The reclining device mechanism includes a base member attached to a seat cushion, and an arm member pivotally attached to the base member so as to be tiltable and supporting a seat back, the arm member being the reclining device. The vehicle seat according to claim 1, wherein the seat is used as an operating portion of the mechanism.