JPH0120937Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a vehicle seat, and more particularly to an improvement in a seat back in which the upper seat back is tiltable relative to the lower seat back.

(Prior Art) Conventionally, the seat back of this type of vehicle seat has been configured such that the upper back board can be tilted at a point on the back surface of the seat back and the back board provided on the back surface of the seat back. 58-61065). The folded portion of the seat bag and the center of tilt of the upper back board are arranged close to each other, and the seat bag on the upper back board side is tilted.

(Problem to be solved by the invention) In the conventional vehicle seat as described above, the back part of the seat back is divided into two parts, so when the upper seat back is tilted, the upper and lower parts are separated. There is a gap in the seat back, and there is a risk that the rear seat occupant may get his/her hand caught in the gap, which is unfavorable in terms of appearance.Also, the center of tilt of the upper back board needs to be close to the folded part of the seat back. There was a problem in that the center of tilting of the back board was influenced by the division of the seat back. In addition, an attempt was made to use a skin material to prevent gaps from forming on the back of the split part of the seat back, thereby preventing passengers in the rear seats from getting their fingers caught. It was not possible to prevent this.

The present invention was made to solve this problem, and even if the upper backboard is tilted, there will be no gap between the upper and lower backboards, and the division of the seat back can be set without any restrictions. The objective is to obtain a vehicle seat that can

(Means for solving the problem) The vehicle seat according to the present invention is provided with an intermediate back board that connects the upper and lower seat backs on the back of the divided part of the seat back that is divided into two parts, and the intermediate back board is connected to the upper and lower seat backs. It is rotatably attached to one of the seat backs and slidably attached to the other seat back.

(Function) In this invention, since the intermediate back board covers the back of the seat back division, even if the upper seat back is tilted relative to the lower seat back, no gap will be created at the back of the seat back division. Since the seat backs are connected by the intermediate backboard, there are no restrictions in setting the divisions of the seat backs.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In the figure, 1 is a seat bag, which is divided into two parts at the middle, an upper part 1a and a lower part 1b. Reference numeral 2 designates a seat back frame constituting the seat back 1, and this seat back frame 2 consists of an upper frame 2a and a lower frame 2b.
A U-shaped plate member 2c having insertion holes 2d at both ends is formed by bending and forming a pipe on the back side between the pipes on both sides. This upper frame 2a is connected to the seat back 1b on the lower side.
It is connected so that it can tilt forward.

The board frame 3 is formed in an L-shape at the upper end of the lower frame 2b, and a bent portion 3a is formed toward the seat back 1a on the upper side. A long hole 3b is formed in the bent portion 3a in the longitudinal direction. In the figure, 4 is a free hinge portion at the lower end of the lower frame 2b. The lower frame 2b is attached to a seat frame that constitutes a seat cushion.

Then, the upper part 1a and the lower part 1b of the seat bag 1
A board 5 is provided on the back side between the
A is formed in the front direction of the seat bag 1.
A pin 5b is attached to the outside of both bent portions 5a, 5a, and is rotatably connected to the insertion hole 2d of the upper frame 2a from the inside of the plate member 2c.
Furthermore, a pin 5c is provided inside both bent portions 5a, 5a, and is connected to the board frame 3 through the elongated hole 3b of the board frame 3. 6 is a backboard, which is attached to the back of the lower seat back 1b. A headrest 7 is supported at the center of the upper part of the upper frame 2a.

In the vehicle seat configured as described above, the upper seat back 1a is moved in the direction of the arrow shown in the figure (the third direction).
(see figure a), the upper frame 2c moves in the direction of the arrow shown in the figure around the front axis of the lower seat back 1b, and the board 5 moves towards the upper frame 2a.
It rises while rotating as one. On the other hand, board 5
The lower pin 5c is the elongated hole 3 of the lower frame 2b.
b to the upper end (see Figure 3b). As a result, the back surface of the board 5 is exposed above the seat bag 1 and between the lower parts 1a and 1b, and covers the upper part of the seat bag 1 and between the lower parts 1a and 1b to prevent a gap from forming on the back surface of the seat bag 1. To return to the original state, operate the upper seat bag 1a in the opposite direction of the arrow. The pin 5c on the lower side of the board 5 slides in the elongated hole 3b to the lower end by the upper frame 2a, and is hidden in the seat bag 1. Moreover, this rigid board 5 can reliably prevent gaps. Furthermore, the upper and lower frames 2a,
2b are connected, the center of tilting of the upper frame 2a can be set without being restricted by the dividing portion on the back side of the backboard 1.

In the above embodiment, the board frame 3 of the lower frame 2b is provided with the elongated hole 3b, but the upper frame 2a may be provided with the elongated hole.

(Effects of the invention) As explained above, the present invention has a structure in which an intermediate back board is provided on the back of the divided part of the seat back, which is divided into upper and lower halves, to connect these parts.
When the upper back board is tilted, no gap is created on the back surface of the back board, and a safe vehicle seat can be obtained in which the divided parts of the seat back can be set without restriction.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a vehicle seat showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the seat bag shown in Fig. 1, Fig. 3A is a side view of the main parts, and Fig. 3B is a FIG. 3A is a side view showing the operating state, and FIG. 4 is a perspective view of the state shown in FIG. 3B. In the figure, 1 is a seat back, 2 is a seat back frame, 2d is an insertion hole, 3b is a long hole, and 5 is a board (intermediate back board).

Claims (1)

[Scope of utility model registration request] In a vehicle seat in which the seat back is divided into two parts, the upper seat back is tiltably connected to the lower seat back, an intermediate back board is provided on the back of the divided portion of the seat back, and the ends of the intermediate back board are connected to the upper and lower seat backs. A vehicle seat characterized in that the vehicle seat is rotatably attached to one of the two ends, and the other end is slidably attached to the upper and lower seat backs of the other.