JPH0569770A - Folding type rear seat - Google Patents

Abstract

PURPOSE:To make it unnecessary to fix a seat back with rubber band. CONSTITUTION:In a foldable type rear seat, a seat back 2 is supported on a seat cushion 1 so as to rotate smoothly, a lever 6 is mounted on the frame 2a of the seat cushion 1 so as to rotate smoothly, and a locking mechanism is provided between one end of the lever 6 and a seat back frame to lock the seat back 2 at a vertically installed position and a folded position respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable rear seat for use in a luggage-carrying vehicle such as a van or a one-box car.

[0002]

2. Description of the Related Art In this type of vehicle, a rear seat is used in which a seat back can be folded and stored in a recess in a floor. Some retractable rear seats have a reclining mechanism and others do not, but FIG. 7 shows an example of the latter. The rear seat a is formed by pivotally connecting a seat cushion b and a seat back c.
When the seat back c is raised to the position shown in the figure, the seat back c is automatically locked. Further, when this locked state is released by the lever d, the seat back c falls down in the direction of the arrow and folds over the seat cushion b.

[0003]

By the way, when the rear seat a is stored in this state, the seat back c rattles while running and an abnormal noise is generated. Therefore, conventionally, as shown in FIG. 8, the seat back c is fixed by the rubber band d, but there is a problem that it takes time to store and set the rear seat a.

Further, when the vibration of the vehicle is severe, the rubber band d may be broken.

In view of such circumstances, it is an object of the present invention to provide a foldable rear seat that does not require the seat back to be fixed with a rubber band.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention rotatably supports a seat back on a seat cushion and rotatably attaches a lever to a frame of the seat cushion. A feature is that a lock mechanism is provided between one end and the seat back frame so that the seat back is locked at the standing position and the folding position, respectively.

[0007]

EXAMPLE FIG. 1 shows a folding rear seat of the present invention. In the figure, 1 is a seat cushion and 2 is a seat back. The frame 2a of the seat back 2 is rotatably supported by the frame 1a of the seat cushion 1 by a stepped bolt 3 (see FIG. 6). Further, stud bolts 4 and pins 5 are planted in the frame 1a,
A lever 6 is rotatably supported on the bolt 4. Further, the torsion coil spring 7 is attached to the stud bolt 4 with the nut 8, and both ends of the spring 7 are locked to the lever 6 and the pin 5, respectively, to urge the lever 6 in the direction of arrow B in the drawing. is there. A locking portion 6a is formed at one end of the lever 6, and the locking groove 6 is provided in front of the locking portion 6a.
b is formed.

On the other hand, on the frame 2a of the seat back 2, a striker 9 having a circular cross section and having a U-shape is erected. Further, an engaging portion 10 is extended to an end edge of the frame 2a, and the engaging portion 10 is formed to be curved outward of the vehicle body (toward the front toward the paper surface) (FIG. 6). reference).

Next, the operation procedure of the rear seat will be described with reference to FIGS. When the seat back 2 is set, the striker 9 of the seat back 2 engages with the locking groove 6b of the lever 6 as shown in FIG. 2 to fix the seat back 2. Now, when the lever 6 is rotated in the direction of the arrow C in the drawing, the striker 9 is disengaged from the locking groove 6b of the lever 6 as shown in FIG. 3, and the locked state of the seat back 2 is released. At this time, the stepped portion 6 of the lever 6
Since c is in contact with the pin 5, the lever 6 cannot rotate any more. Next, the seat back 2 is tilted forward (in the direction of arrow D in the drawing) and folded over the seat cushion 2 (see FIG. 4). When the user releases the lever 6 and returns it to its original position, the locking portion 6a of the lever 6 engages with the engaging portion 10 of the seat back 2 as shown in FIG.
The seat back 2 will be locked in this position.
When setting the seat back 2, this procedure may be reversed.

In this embodiment, the engaging portion 10 is provided on the frame 2a of the seat back 2 and the engaging portion 6b is formed at one end of the lever 6, but these arrangements are reversed. Good.

[0011]

According to the present invention, since the seat back engages with one end of the lever and is locked at the folding position, the rubber band which has conventionally fixed the seat back is not required, so that the seat back can be stored and stored. It can be set easily.

[Brief description of drawings]

FIG. 1 is an explanatory view of a folding rear seat of the present invention.

FIG. 2 is a diagram showing a main part of FIG.

FIG. 3 is a diagram showing an operation of the main part when the seat back is folded.

FIG. 4 is a diagram showing an operation of the main part when the seat back is folded.

FIG. 5 is a diagram showing an operation of the main part when the seat back is folded.

6 is a cross-sectional view taken along line AA shown in FIG.

FIG. 7 is a perspective view showing a conventional rear seat.

8 is a perspective view of the rear seat of FIG. 7 when folded.

[Explanation of symbols]

 1 Seat Cushion 1a Frame 2 Seat Back 2a Frame 3 Stepped Bolt 4 Stud Bolt 5 Pin 6 Lever 6a Locking Part 6b Locking Groove 7 Torsion Coil Spring 8 Nut 9 Striker 10 Engaging Part

Claims (1)

[Claims] 1. A seat back is rotatably supported by a seat cushion, a lever is rotatably attached to a frame of the seat cushion, and a lock mechanism is provided between one end of the lever and the seat back frame. A foldable rear seat characterized in that the seat back is locked in an upright position and a folded position, respectively.