JPS6232463Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of application of the invention] The invention is applicable to frames for seat bags of automobiles, etc.
In particular, the present invention relates to a seat bag frame with an improved bracket for supporting a headrest.

[Prior art]

Conventionally, in this type of seat bag frame, as shown in FIG. 1, a single panel frame or rod 12 is passed above the main frame 10, and then a bracket 14 for supporting the headrest is attached.
However, this structure not only increases the number of components of the frame as a whole, but also has the disadvantage of increasing weight and cost. For this reason, there has been a desire for a seat frame that can be simplified in configuration without reducing the overall strength.

[Purpose of invention]

The present invention was developed in response to this demand, and its main purpose is to obtain a frame for a seat bag that can simplify the frame structure, reduce weight, reduce costs, and maintain frame strength.

[Summary of the idea]

Therefore, in the present invention, the above-mentioned rods are abolished, and brackets for supporting the headrest are arranged almost in a brace-like manner at both corners of the upper part of the frame. Therefore, the weight of the frame is reduced by omitting the panel frame and rods, and the frame is reinforced by the two brackets.

[Example of idea]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 2 is a partial cross-sectional view of the entire seat, showing the seat back 16, headrest 18,
It consists of a seating seat 20. Seat bag 16
The main frame 22 and the bracket 24 constitute a framework, and as is well known, the inside is provided with a spring 26 and a sponge layer 28 as a cushion, and the outside is covered with an outer skin 27.
The main frame 22 has an inverted U-shape, and both ends of the main frame 22 are pivotally supported by the rear end of the seat 20, so that the seat back 16 can be rotated in stages relative to the seat 20 by an adjustment mechanism (not shown). head rest 1
8 is for supporting the passenger's head, and two legs 30, 30 extend below this. These two legs 30, 30 connect to two bushes 32, 32 installed above the seat back 16.
By inserting each into the headrest 1
8 is set in place.

Next, the seat bag frame, which is the center of the present invention, will be explained. As shown in FIG. 3, this consists of a main frame 22, a pair of brackets 24,
4. Consists of two bushings 32, 32. As described above, the main frame 22 has an inverted U-shape, and a pair of holes 34 for inserting bushings are provided in the upper shoulder portion of the main frame 22. The bushing 32 is pipe-shaped so as to receive the legs 30 of the headrest, and has a flange 36 on the upper side, and a tapered portion 38 on the lower side to reach the reduced diameter portion 40 . The two bushes 32 penetrate the outer skin 27 and sponge layer 28 of the seat bag via the washers 42, and are inserted into the respective holes 34 of the main frame. The insertion position of the bush 32 is between the flange 36 and the washer 4.
2, and the lower end of the bushing 32 is fixed by a bracket 24. bracket 24
consists of an angle portion 44, a side plate 46, and a pedestal 48, and has the functions of reinforcing the main frame 22 and fixing the bushing 32. Angle part 44
The shape and curvature of the main frame 22 are approximately the same as the corners of the main frame, but if the main frame 22 is thick, the curvature of the angle portion 44 will be smaller than this. To prevent the upper surface of the angle portion 44 from blocking the hole 34 of the main frame,
It is desirable to cut out this portion in advance to provide a recess 45. A side plate 46 is formed by bending downward from the angle portion 44, and a pedestal 48 is formed by further bending in the same direction as the angle portion 44. A hole 50 is bored in the pedestal 48, and the reduced diameter portion 4 of the bushing described above
0 and the tapered portion 38 are inserted into this hole 50.
The inner diameter of the hole 50 is smaller than the diameter of the bushing 32;
It is dimensioned to be larger than the diameter of the reduced diameter portion 40. Therefore, the tapered portion 32 of the bushing fits into the hole 50 in a wedge-like manner, and wobbling of the entire bushing can be prevented. As can be seen from FIG. 2, the bushing 32 must be inserted from above after the main frame 22 has been covered with the sponge layer 28 and the outer skin 27, so an elastic force acts in the direction in which the bushing 32 comes out. Therefore, the bush 32 is pushed in until the taper part 38 of the bush and the hole 50 of the bracket are fully engaged.

The bracket 24 in this embodiment has an angle portion 44 fitted above the main frame 22 and fixed at both ends by welding, as shown in FIG. If the adhesion is weak, attach ears 5 to both ends of the bracket 24.
2 and 54 are provided, and the main frame 22 is welded with the angle portion 44 and the ears 52 and 54 being clamped to each other. The bracket 24 fixed in this way
It plays the role of a brace, and the main frame 2
This will reinforce the corners of No. 2, and eventually the entire frame. Therefore, even if the horizontal panel frame and rod 12 (FIG. 1) seen in the conventional product are omitted, the strength will not be reduced.

FIG. 5 shows another embodiment of the bracket. The bracket 24 mentioned above was attached to the main frame 22 from the side, but this bracket 12
4 is a type that is installed from below. The structure is simpler than the previous one, and only requires bending a material with a U-shaped cross section. The bent portions 152 and 154 at both ends are welded with the main frame 22 being clamped from inside. Further, the central portion of the bracket 124 is also bent once to form a pedestal 148, and a hole 150 is bored therein so that the lower end of the bush 32 can be supported as in the previous embodiment.

FIG. 6 shows still another embodiment, in which concentric holes 234 and 248 are bored in the upper and lower surfaces of the bracket 224, instead of in the main frame 22.
The method of attaching the bracket 224 to the main frame 22 is similar to that of the embodiment shown in FIG.

The main purpose of the bracket is to attach one end above the corner of the main frame and the other end to the side of the corner of the main frame, thereby achieving the same reinforcing effect as bracing. Further, since it is only necessary to provide a pedestal portion for supporting the bushing 32 in a part of the bracket, various shapes of the bracket itself can be considered. Therefore, the present invention is not limited to the above-described embodiments.

[Effect of idea]

As mentioned above, according to the seat bag frame of the present invention, it is possible to omit the horizontal panel frame and rods, which makes it possible to simplify the frame structure, reduce the weight, and reduce the cost. Able to maintain strength.

[Brief explanation of the drawing]

Fig. 1 is a partially enlarged view of a conventional seat bag frame, Fig. 2 is a perspective view of the entire seat, Fig. 3 is an enlarged perspective view of the frame of the present invention, and Fig. 4 is a perspective view showing how the bracket is attached. , FIG. 5, and FIG. 6 are perspective views showing other embodiments. 16... Seat back, 18... Head rest, 22... Main frame, 24, 124, 224
...Bracket, 30...Headrest leg, 3
2...Bushiyu.

Claims (1)

[Scope of utility model registration request] A main frame forming the outer shape of the seat, two bushings attached to the upper end of the main frame to receive a pair of legs of the headrest, and a pair of bushings fixed to both corners of the upper part of the main frame in a substantially braced manner to support the bushings. A frame for a seat bag consisting of a bracket and a bracket.