JP2520641Y2 - Seat back back structure - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is a vehicle seat (seat)
The seat back (back portion), specifically, the seat back in which a back board is fixed to the back surface of a frame made of a plate with hooks is intended to improve the attachment of the back board to the frame.

[0002]

2. Description of the Related Art In this type of conventional product, a locking hole is formed in the upper part of a substantially flat frame, and a hook protruding from the inside of the upper part of the backboard is inserted into the locking hole from below the frame. It is inserted by sliding it upward.
By inserting the hook into the locking hole, the upper part of the backboard is fixed to the frame side. The lower part of the backboard is screwed to the lower part of the frame.

[0003]

By the way, when the hook of the backboard is inserted into and locked by the locking hole of the frame, since the hook is inside the backboard, it is difficult to insert the hook into the locking hole. There was a problem that the backboard could not be fixed to the frame side with hooks easily and accurately. Then, this invention aims at improving the attachment property with respect to the frame of a backboard.

[0004]

In order to achieve the above object, the present invention provides a plurality of frame-reinforcing ridges arranged in parallel in the vertical direction on the frame, and a concave ridge located between the left and right ridges. In addition, the locking hole is opened, and one edge of the locking hole on the upper end side of the frame is formed by projecting upward with respect to the surface of the groove. It is desirable that the height of the protruding lip of the locking hole is lower than the height of the ridge.

[0005]

[Function] When the backboard is slid upward from below the frame, the hooks of the backboard are guided by the left and right ridges and move along the ridges to hit the protruding rims of the locking holes. Insert into the locking hole.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the structure of the present invention. In the figure, (1) is a frame made of a metal plate welded to a pipe outer frame (33) whose ends are bent in a frame shape, and the upper part of the frame (1) is The locking hole (11a) is opened, and the locking hole (11a)
An upwardly projecting hook (21) is inserted in a), and the hook (21) is provided so as to project on the upper inner surface of the backboard (2) constituting the back and back of the seat back (SB).
In the figure, (SC) indicates a seat cushion, and the seat back (SB) is tilted forward on the seat cushion (SC), whereby the back board (2) becomes flat and can be used as a luggage carrier. The above locking holes (11a) (1
As shown in FIG. 2, 1a) is opened in a groove (13) located between the frame reinforcing ridges (12) (12) provided in the frame (1).

2 and 3 show a state before the backboard (2) is attached. The backboard (2) applies a foam cushion body (32) to the frame (1) and attaches it to the skin ( After covering with 31), it is fixed to the frame (1). The frame (1) has a plurality of ridges (1
2) are arranged in parallel to reinforce the frame (1). The locking holes (11a) (11a) are opened in the recessed ridges (13) (13) in the upper part of the frame (1), and the upper end side of the frame (1) at the rim is the surface of the recessed ridges (13). It is formed so as to project higher than. This protruding bite is used as a guide protrusion (11) (11). The height of the guide protrusions (11) and (11) is lower than that of the protrusions (12) and (12) so that the guide protrusions (11) and (11) do not contact the inner surface of the backboard (2). Also, this guide protrusion (11)
As shown in FIG. 4, the tip of (11) has a hook (21).
The (21) is bent inward so that it can be easily inserted into the locking holes (11a) (11a).

Thus, when the hooks (21) and (21) of the backboard (2) are applied to the frame (1) and slid upward from below the frame (1), the hooks (2)
1) and (21) are left and right ridges (12) of the frame (1)
It moves along the concave stripes (13) (13) surrounded by (12), hits the guide protrusions (11) (11), and is inserted into the locking holes (11a) (11a). .

[0009]

EFFECTS OF THE INVENTION According to the present invention, a plurality of frame-reinforcing ridges are arranged in parallel on a frame, and the recesses between the ridges are provided with locking holes formed by projecting the upper edge of the frame. Therefore, the hook of the backboard is guided by the ridge of the frame and the protruding lip of the locking hole and inserted into the locking hole. Therefore, since the mountability of the backboard to the frame is improved, the workability thereof can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of the structure of the present invention.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG.

4 is a sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 1 frame 2 back board 11 protruding edge of locking hole 11a locking hole 12 convex strip 13 concave strip

Claims (1)

(57) [Scope of utility model registration request] 1. On an upper part of a frame composed of a plate,
A seat formed by opening a locking hole, and by inserting a hook projecting inside the upper part of the backboard into the locking hole from below the frame to above the frame, the backboard is fixed to the frame. In the back, a plurality of frame-reinforcing ridges are arranged side by side in the vertical direction on the frame, and the locking holes are formed in the recesses located between the left and right ridges. The back and back structure of the seat back in which the upper edge of the seat is formed by projecting upward with respect to the surface of the concave line to facilitate insertion of the hook into the locking hole.