JP2001150996A - Seatback frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the thickness and weight of a seatback frame while maintaining the strength at a frame side. SOLUTION: A reinforcing patch 16 extended at one of both frame sides 12, 13 from a point connected to a reclining device to the approximate middle height of the width of a lower cross panel 15 is welded to one frame side 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat back frame used for a vehicle seat, particularly, an automobile seat, and more particularly to a seat back frame for reducing the weight.

[0002]

2. Description of the Related Art This type of seat back frame is composed of an upper pipe frame, both frame sides, and a lower frame.
A frame that is assembled with a cross panel, a plurality of cross wires, and the like, and allows a reclining device to be connected to one of the two frame sides and a free hinge to the other of the two frame sides. Adopt structure. And in the seat back frame where both frame sides are pressed from thin steel plate, the frame side connects the reclining device when the lower cross panel is loaded. Location and its lower
Deformation occurs between the place where the cross panel is welded and the inclination angle of the frame increases, and as a result,
It was difficult to reduce the weight of the frame.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a seat back frame in which the strength of the frame side is ensured, the plate thickness can be reduced, and the weight can be reduced.

[0004]

Means corresponding to the object and the operation thereof
A structure in which a reinforcing patch extends from a point connected to the reclining device on one of the two frame sides to approximately the middle of the width of the lower cross panel and is welded to one of the frame sides. The reinforcement patch secures strength on the frame side, and the thickness of both frame sides is reduced.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a seat back frame of the present invention will be described based on a specific example shown and illustrated. FIGS. 1 and 2 show a seat back of a driver seat of a passenger car. An embodiment 10 of the seat back frame of the present invention to be utilized is shown, and the seat back frame 10 comprises an upper pipe
Frame 11, both frame sides 12, 13, lower
A cross panel 15 and a plurality of cross wires (not shown) are assembled, and a reclining device (not shown) is attached to one of the two frame sides 12 and 13. , 13 are connected to a free hinge (not shown), respectively, and are hinged to the seat cushion (not shown) of the driver seat by the reclining device and the free hinge.

[0006] In the seat cushion frame 10, the reinforcing patch 16 is provided on both of the frame sides 12,
13 and extends from a point where the right frame side 13 is connected to the reclining device to a substantially intermediate height of the width of the lower cross panel 15 and the inner surface of the right frame side 13 18 is welded.

The reinforcement patch 16 may be embodied in a reinforcement patch 20 whose extension 21 tapers, as shown in FIG.

The seat back frame 10
In the figure, 14 is a frame top, and 17 is a stay holder.

Therefore, in the seat back frame 10, the right frame side 13 is reinforced by the reinforcing patch 16 so that the two frame sides 12,
13 has sufficient strength even if it is pressed from a thin steel plate, and the weight of the entire frame is reduced. Specifically, when the lower cross panel 15 receives a load, the frame sides 12, 13 connect the reclining device, the free hinge and the ends of the lower cross panel 15 to each other. Deformation can be avoided beforehand with respect to the portion to be welded, and an increase in the falling angle of the frame is avoided.

As will be apparent from the specific embodiments of the present invention described above with reference to the drawings, one skilled in the art to which the present invention pertains will appreciate the subject matter of the present invention. Is the nature of the invention (na
), and are readily embodied in other aspects that are objectively perceived as inherent in them. Of course, the content of the present invention corresponds to the subject of the invention (be commensu).
rate with) and essential for the invention.

[0011]

As can be appreciated from the foregoing, the seat back frame of the present invention provides for the width of the lower cross panel from the point where the reinforcing patch is connected to the reclining device on one of the frame sides. And is welded to one of the frame sides, so that in the seat back frame of the present invention, one of the frame sides is reinforced by the reinforcing patch, and both of the frame sides have strength. Is secured, and
The thickness of the frame can be reduced, and the entire frame is lightened accordingly, and the frame side connects the reclining device, free hinge, especially when a load is applied to the lower cross panel This prevents the deformation between the part to be welded and the place where the lower cross panel is welded at both ends, thereby preventing the frame from tilting too much and, as a result, is very useful for automobile seats. It is practical.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a specific example of a seat back frame of the present invention which is used for a seat back of a driver seat of a passenger car.

FIG. 2 is a partial perspective view showing a modified reinforcing patch welded to the seat back frame shown in FIG. 1;

[Explanation of symbols]

 11 Upper pipe frame 12 Frame side 13 Frame side 14 Frame top 15 Lower cross panel 16 Reinforcement patch

Claims (2)

[Claims] 1. A reinforcing patch extends from a point connected to a reclining device on one of the two frame sides to a height approximately half the width of the lower cross panel, and is welded to one of the frame sides. The seat back frame. 2. The seat back frame according to claim 1, wherein the reinforcing patch tapers.