JPH0710588Y2 - Vehicle seat - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to improvement of a vehicle seat.

b. Conventional Technology Conventionally, a urethane foam sheet has been provided as a vehicle seat, and this type of vehicle seat has a frame mechanism 51 shown in FIG. 3, for example. The frame mechanism 51 in the figure is used for a front seat back, and includes a seat frame 52 that forms a seat back, zigzag springs 53 that are installed on both sides of the seat frame 52 at appropriate intervals, and the like. . And on the front surface of the spring 53, a pad receiver 55 formed of a gauze cloth having a plurality of urethane circulation holes 54 is arranged. Thus, the pad receiver 55 is fixed to the spring 53.

The frame mechanism 51 having such a configuration is integrally foamed with urethane except for the hinge portion 57 to form a pad assembly, and the front seat back is formed by covering the pad assembly with a skin or the like.

c. Problems to be Solved by the Invention By the way, the reason why the pad receiver 55 is fixed to the spring 53 by the hog ring 56 is to prevent the pad receiver 55 from being washed away by the urethane when integrally foaming with urethane. Therefore, after foaming urethane, the hog ring 56 becomes unnecessary. On the other hand, the pad receiver 55 that holds the pad is located in front of the spring 53, and if the contact surface between the urethane pad and the spring 53 can be reinforced, the hog ring
No need to use 56. Moreover, the use of the hog ring 56 increases the number of work steps and the number of parts, resulting in high cost.

The present invention has been made in view of such circumstances, and an object thereof is to provide a vehicle seat that can solve the above-mentioned drawbacks.

d. Means for Solving the Problems In order to solve the problems of the above-mentioned conventional technology, in the present invention, springs are stretched on both sides of a seat frame supporting a pad to be integrally foamed, and the front surface of the spring is A frame mechanism for fixing the pad receiver to the spring by disposing a pad receiver on the pad, integrally forming an engaging portion on the pad receiver, and engaging the engaging portion with a part of the spring. It is equipped with.

e. Embodiment Hereinafter, the present invention will be described in detail based on an illustrated embodiment.

FIG. 1 shows an embodiment of the present invention.
Is a frame mechanism applied to a urethane foam sheet type vehicle seat, and the frame mechanism 1 is used for a front seat back.

The frame mechanism 1 includes a seat frame 2 forming a seat back, a zigzag spring 3 elastically supporting a pad (not shown) integrally foamed, and a pad receiver 4 arranged in front of the spring 3. . The seat frame 2 is formed, for example, by bending a single metal pipe into a substantially rectangular shape, and has an upper panel 5 at the upper part.
And the headrest bracket 6 is fixed.

A pair of spring retainers 7 and 8 are fixedly welded to the left and right sides of the seat frame 2 with a vertical interval therebetween, and both ends of the spring 3 are crimped to the retainers 7 and 8. Supported. Then,
On both sides of the seat frame 2, two springs 3 are stretched vertically at appropriate intervals. In the figure, 9 is a side wire fixed to both sides of the seat frame 2, 10 is a reclamation bracket fixed to one side of the seat frame 2, 11 is a side of the seat frame 2 opposite to the reclamation bracket 10. The hinge portion is formed by extending the portion downward.

On the other hand, the pad receiver 4 is formed by using a gauze cloth that is cut smaller than the area surrounded by the seat frame 2, and is arranged between the integrally foamed pad and the spring 3. The pad receiver 4 is provided with four long holes 12 as engaging portions at predetermined intervals in the vertical and horizontal directions, and these long holes 12 are formed long in the width direction. Then, the pad receiver 4 is configured to be fixed to the spring 3 by engaging with the upward curved portion 3a of the spring 3 inserted into each elongated hole 12 so as to be exposed to the front side.

According to the frame mechanism 1 configured as described above, the pad receiver 4 is fixedly held by the spring 3 through the long hole 12, so that the pad receiver 4 is moved by urethane even when the pad is integrally foamed. There is nothing to do. Further, since the long hole 12 also serves as a urethane distribution hole in the related art, there is no increase in cost due to drilling. It should be noted that, depending on the flow of urethane, the pad holder 4
Even if the fixing is not sufficient, it can be fixed to the spring 3 by providing only one hog ring near the center of the pad receiver 4.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications and changes can be made based on the technical idea of the present invention.

For example, as the engaging portion of the pad receiver 4 in the above-described embodiment, a pair of upper and lower elongated holes 21 and 22 are provided in two stages as shown in FIG. 2, and the spring 3 inserted into these elongated holes 21 and 22. The upper curved portion 3a may be engaged so that only the intermediate portion is exposed to the front side of the pad receiver 4. According to this structure, the pad receiver 4 is more firmly attached to the spring 3
Fixed to. Further, instead of the long holes 12, 21, 22, it is possible to provide engaging portions of various shapes such as slits and round holes. The point is that it may be configured to engage with a part of the spring 3. Further, the number of installed engaging portions is not limited to that of the present embodiment, and can be appropriately selected according to the number of curved portions of the spring 3 and the like.

f. Effect of the Invention As described above, the vehicle seat according to the present invention has the frame mechanism for fixing the pad receiver to the spring by engaging the engaging portion formed integrally with the pad receiver with a part of the spring. Since it is provided, it is possible to reliably prevent movement of the pad receiver due to the flow of urethane that occurs when the pad is integrally foamed. Therefore, in the vehicle seat of the present invention, the hog ring used in the conventional seat can be unnecessary or greatly reduced, so that the workability of the foamed sheet can be improved and the product cost can be reduced. Product value can be increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing a frame mechanism applied to a vehicle seat according to an embodiment of the present invention, FIG. 2 is a plan view showing a pad receiver according to a modification of the above embodiment, and FIG. 3 is a perspective view showing a frame mechanism applied to the vehicle seat of FIG. 1 ... Frame mechanism, 2 ... Seat frame, 3 ... Zigzag spring, 3a ... Upward bending part, 4 ... Pad receiver, 12,21,22 ... Slots.

Claims (1)

[Scope of utility model registration request] 1. A spring is stretched on both sides of a seat frame that supports a pad to be integrally foamed, a pad receiver is arranged in front of the spring, and an engaging portion is integrally formed on the pad receiver. And a frame mechanism for fixing the pad receiver to the spring by engaging the engaging portion with a part of the spring.