JPS6237786Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a seat frame for a vehicle seat, etc., and particularly to improve a seat frame for a seat bag fixed to a vehicle wall such as a rear seat of a passenger car.

Conventionally, in the rear seat of a passenger car, as shown in FIG.
A horizontal wire rod 3a is horizontally fixed to the upper part of this frame line 3 in the form of a crossbar, and this horizontal wire rod 3a is fixed by being hooked to a hook 5 protruding from the upper part of the rear wall surface 4 of the vehicle body. Also, a plurality of seat anchors 6 are fixed at required intervals to the lower edge wire 3c connected by the horizontal wire 3a and the vertical wire 3b, and the seat anchors 6 are attached to the rear wall surface 4 and the floor surface 8 of the vehicle body with bolts 7.
It was configured to be fixed.

In the seat frame 2 constructed in this manner, the upper and lower parts are fixed to the rear wall 4 and the floor 8 of the vehicle body using separate wire rods, that is, the upper portion is fixed to the hook 5 by the horizontal wire rod 3a, and the lower portion is fixed to the horizontal wire rod 3a. By fixing the seat anchorage 6 with the bolts 5, the seat anchorage 6 is fixed at the lower edge wire rod 3c, so that when a large force is applied forward to the seat back 1 during a collision, the frame line 3 forming the seat frame 2 is fixed.
Each wire 3 between the locking part to the hook and the lower fixing part
A, 3b, 3c are subjected to tension, bending, twisting, and other forces in various directions, and if each wire rod has a small diameter, the seat frame 2 will be greatly deformed (double-dashed line in Figure 2). If a rearward force is applied to the frame line 3, the horizontal wire 3a of the frame line 3 may come off the hook 5, and the seat bag 1 may slip off the rear wall surface 4 of the vehicle body.

In order to eliminate this drawback, the seat frame has been constructed to withstand various forces in various directions by increasing the wire diameter of the seat frame frame line and reinforcing it with iron plates, but in terms of weight, It was not desirable in terms of cost.

Therefore, the present invention has been developed in view of this point, and the frame line forming the seat frame is configured such that the locking part and the fixing part to the vehicle body wall surface are linearly connected to each other by wire rods. To provide a seat frame for a vehicle seat in which only tensile force is applied to linearly connected wire rods, and the seat frame frame line is prevented from coming off from a locking piece.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 3 and 4, and the same members as those shown in FIGS. 1 and 2 will be designated by the same reference numerals and redundant explanation will be omitted.

In FIGS. 3 and 4, reference numeral 12 denotes an example seat frame according to the present invention, which is formed by a frame line 13, and wire rods 14 are fixed in a zigzag shape in the vertical direction across the upper horizontal wire rod 13a and the lower edge wire rod 13b. The wire rod 14 has a portion, ie, a locking portion 14a, which is engaged with the hook 5 on the rear wall surface 4 of the vehicle body at the upper portion thereof, and a seat anchor-shaped fixing portion 14b is integrally formed at the lower portion. This fixing portion 14b may be formed into a bracket shape from an iron plate and fixed to the wire rod 14, and in this case, it is also possible to partially reinforce it.

The seat frame 12 formed in this way has the locking portion 14a of the wire rod 14 of the frame line 13 aligned with the rear wall surface 4 of the vehicle body.
The seat anchor-like fixing portion 14b is fixed to the rear wall surface 4 and the floor surface 8 of the vehicle body with bolts 7 while being hooked and engaged with the hook 5 of the seat anchor 14b.

If the seat frame 12 is fixed to the rear wall surface 4 and the floor surface 8 of the vehicle body in this way, a force will be generated between the upper and lower locking portions and fixed portions of the seat frame 12 due to the action of the front force of the seat back 1 in the event of a collision. , that is, the locking part and fixing part 14a, 1 of the wire rod 14
The force generated between 4b acts only as a tensile force on the wire 14, and only tends to deform the wire 14 forward into a very slight arched shape. There is no risk that the portion 14a will come off the hook 5, and the wire portion 14 is only slightly deformed forward into an arched shape.
Almost no deformation occurs as a whole of the frame line 13 including 3a and 13b.

Further, by fixing the skin 15 to the frame line 13 as shown in FIG. 5, the load of the cushion body formed from the skin 15, pad material 16, etc. is also applied to the frame line 13 and is supported.

Note that the shape of the wire 14 fixed to the frame line 13 is not limited to that shown in the drawings, and may be any shape as long as the locking portion and the fixing portions 14a, 14b are linearly connected. Further, it is also possible to add a horizontal frame line 13a to the frame line 13, or to stretch a spring wire such as an S spring.

As described above, the present invention has a seat frame with a frame line structure for the seat fixed to the car body wall, in which the locking part and the fixing part of the frame line to the car body wall are linearly connected by wire rods. The force generated on the frame line between the fixed parts of the seat frame is applied only as a tensile force to the wire that linearly connects the locking part and the fixed part, and no bending moment that causes large deformation of the frame line occurs, and the Therefore, the deformation of the seat frame at the time of a collision can be minimized, the locking portion is prevented from coming off, and the seat can be securely fixed to the wall surface of the vehicle body.

In addition, the frame line that constitutes the seat frame can be formed from a relatively thin wire material that can withstand only tensile force, so it has the advantage of being able to provide a lightweight and inexpensive seat frame. The effect is great when applied to

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional seat frame, Figure 2 is a perspective view of a conventional seat frame.
The figure is an enlarged vertical cross-sectional view of the seat frame shown in FIG. 1, FIG. 3 is a perspective view of the seat frame according to the present invention, and FIG.
FIG. 5 is an enlarged vertical cross-sectional view in the figure, and FIG. 5 is a vertical cross-sectional side view with the cushion body attached. In the figure, 1 is the seat back, 4 is the rear wall of the vehicle body,
5 is a hook, 7 is a bolt, 8 is a vehicle floor surface, 12 is a seat frame, 13 is a frame line, 14 is a wire rod, 14
a is a locking portion, and 14b is a fixing portion.

Claims (1)

[Scope of utility model registration request] In a seat frame consisting of a frame line structure of a rear seat bag that is fixed to the vehicle body, there is a locking piece with an open upper end provided on the vehicle body divided to the left and right so as to lock the upper part of the seat frame, and a locking piece with an open top end in the lower center of the seat frame. 1. A seat frame comprising: at least one fixing part formed in the seat frame, and the fixing part is linearly connected to the fixing part of the seat frame to the fixing piece by a wire.