CN102529772B - Seat cushion for vehicle seat - Google Patents

Abstract

The invention provides a seat cushion of a vehicle seat. It can thin the seat cushion and improve its support. The buttock support part (10) of the panel (1) used to support the foam body pad is welded to its front between the left and right skeletons (2, 2), and is provided with a flexible part formed by a rope-shaped reinforcing rib ( a) to impart flexibility to the buttock support (10).

Description

Seat cushions for vehicle seats

technical field

The present invention relates to a seat cushion of a vehicle seat such as an automobile seat. the

Background technique

Among the seat cushions of automobile seats, there is a seat cushion having a frame-shaped frame and a panel for supporting a foam cushion. the

The panel is welded to the frame around its periphery, or the panel is suspended from the frame by a spring as disclosed in JP-A-2007-99195, for example. the

In addition, various seat cushions have been proposed, such as a seat cushion in which a panel is integrally formed with an elastic member (for example, JP-A-2005-237519). the

Patent Document 1: Japanese Patent Laid-Open No. 2007-99195

Patent Document 2: Japanese Patent Laid-Open No. 2005-237519

The above-mentioned seat cushion in which the panel is welded to the frame has poor cushioning properties, so thick polyurethane foam or the like is used as a cushion. Therefore, the thickness of the seat cushion becomes thick, limiting the space in the vehicle. the

On the other hand, the structure of the seat cushion in which the panel is suspended from the frame by springs is complicated and requires many assembly steps.

In addition, there is a problem in that the seat cushion whose entire panel is formed by an elastic member, for example, the front portion for supporting the occupant's thighs and other parts that do not require cushioning properties also have cushioning properties, which affects the supporting properties (Japanese : seating). the

Contents of the invention

The present invention aims at eliminating the defects of the above-mentioned conventional products. the

In order to achieve the above object, the seat cushion of the vehicle seat of the present invention includes a frame and a panel for supporting the foam pad, and it is characterized in that the panel is connected by the buttock support part, the thigh support part and the rear part. The above-mentioned buttock support part is used to support the buttocks of the occupant, and the above-mentioned thigh support part is integrally provided in front of the hip support part, and the left and right sides of the thigh support part are connected to the left and right sides of the above-mentioned frame for supporting For the thigh of the occupant, the rear connection part is extended behind the hip support part, and the left and right sides of the rear connection part are fixed to the left and right frames, and the front part of the hip support part is welded to the left and right frames Between them, there is a flexible part formed by a rope-like reinforcing rib to give the buttocks support part flexibility. the

Preferably, the flexible portion of the buttock support part is configured so that the flexibility of the part surrounded by the rope-shaped reinforcing rib is greater than the flexibility of other parts of the buttock support part. It is formed of grooves in the shape of a U-shaped shape and a substantially U-shape in plan view, and the portion surrounded by the rope-shaped reinforcing rib is provided with a reinforcing rib composed of a convex line for reinforcement. the

Therefore, the thigh support part does not have flexibility, but the entire buttock support part, especially the part surrounded by the rope-shaped reinforcing rib has flexibility. the

According to the present invention, only the buttock support portion of the panel requiring cushioning is flexible without using a spring member. Therefore, the thickness of the foam pad placed on the panel can be made thinner, and the disadvantages of the above-mentioned conventional products can be eliminated. bad. the

Description of drawings

Fig. 1 is a top view of a framed panel used in the seat cushion of the present invention. the

Fig. 2 is a sectional view taken along line II-II of Fig. 1 . the

Fig. 3 is a sectional view taken along line III-III of Fig. 1 . the

FIG. 4 is a perspective view of FIG. 1 . the

Detailed ways

Hereinafter, a preferred embodiment of the seat cushion of the present invention will be described based on the drawings. In the drawings, reference numeral 1 is a panel, which is integrally formed with a thigh support portion 11 , a buttock support portion 10 , and a rear connection portion 12 by press-forming a metal plate with a thickness of, for example, about 0.8 mm. the

In the panel 1, the thigh support part 11 and the rear connection part 12 are welded to the left and right of the frame 2, and the left and right edges 100, 100 of the buttock support part 10 are cut into curved shapes. the

Thereby, the left-right width of the buttock support part 10 is formed to be narrower than the width between the left and right frames 2, 2. Therefore, the buttock support part 10 is independent from the frames 2, 2 and has flexibility without being fixed on the frames 2, 2. Formed in a permanent manner, the thigh support portion 11 positioned in front of the buttock support portion 10 is welded to the skeleton 2,2. the

Also, the frames 2, 2 are formed in a U-shape with an open rear portion, and the left and right ends of the rear connecting portion 12 are welded to the rear end sides of the frames 2, 2 on the right and left. The rear connection portion 12 is formed in a shape that rises upward in a curved shape with respect to the buttock support portion 10 . the

The structure of the buttock support part 10 is as follows, that is, as shown in the figure, a rope-shaped reinforcing rib 10A having a U-shaped cross-section having a depth of about 5 mm in plan view and having a U-shaped groove 10A is provided. , the portion surrounded by the rope-like reinforcing rib 10A is defined as the flexible portion a, which has excellent flexibility relative to other portions of the buttock support portion 10 . the

Furthermore, the portion surrounded by the rope-shaped reinforcing rib 10A is provided with protruding ribs 10B, 10B for reinforcement. In the drawings, reference numeral 10C denotes a through-hole which is opened in order to improve the flexibility of the portion surrounded by the above-mentioned string-shaped reinforcing rib 10A. the

As shown in FIGS. 3 and 4 , the thigh support portion 11 is formed in a curved shape with the central portion in the left-right direction inclined toward the frame 2 so that the left and right sides are higher than the central portion. The left and right of 11 are welded on the skeleton 2,2. the

In addition, in the seat cushion shown in the figure, parallel links 40, 40 for lifting are provided on the above left and right frames 2, 2, and the parallel links 40, 40 are connected to the upper guide rail 41 on the slide rail. In the drawings, reference numeral 42 denotes a lower rail of the slide rail, and reference numerals 50 , 50 denote a backrest frame of a seat back attached to the rear end of the frames 2 , 2 .

The foam pad 3 is placed on the thigh support portion 11, the buttock support portion 10, and the rear connection portion 12, and the pad 3 is covered with a skin material to form a seat cushion. the

When the occupant sits on the seat cushion, the buttock support portion 10 of the panel 1 has flexibility as a whole, and the flexible portion a located in the center of the buttock support portion 10 has good flexibility, so it can be used with a thinner seat. The foam system pad3. the

Moreover, since the thigh support portion 11 of the panel 2 is welded to the frames 2, 2, the thigh support portion 11 has no cushioning properties and can reliably support the thigh of the seated person. the

Thereby, since only the buttock support portion 10 of the panel 1, which is a part requiring cushioning properties, has cushioning properties, the thickness of the pad 3 as a whole can be thinned, the seat cushion can be thinned, and seating comfort can be provided. Good seat cushion. the

Translation of reference signs

1: panel; 10: hip supporting part; 11: thigh supporting part; 12: rear connecting part; a: flexible part. the

Claims (1)

1. A seat cushion of a seat for a vehicle comprising a frame and a panel for supporting a foam cushion, characterized in that, The above-mentioned panel is composed of a buttock supporting part, a thigh supporting part and a rear connecting part. The above-mentioned buttock supporting part is used to support the occupant's buttocks. The above-mentioned thigh supporting part is integrally provided The left and right sides of the leg support part are connected to the left and right sides of the frame to support the thighs of the occupant, and the rear connection part is extended behind the buttock support part and fixed to the left and right on the skeleton, The above-mentioned buttock support part has its front welded between the left and right frames, and a flexible part formed of a rope-shaped reinforcing rib is provided to give the buttock support part flexibility, The above-mentioned rope-shaped reinforcing rib is composed of a groove formed in a substantially U-shaped cross-section and a substantially U-shaped top view, and the flexibility of the portion surrounded by the above-mentioned rope-shaped reinforcing rib is greater than that of other parts of the buttock support portion. The portion surrounded by the above-mentioned rope-shaped reinforcing ribs is reinforced by providing reinforcing ribs composed of convex lines, The above-mentioned rope-shaped reinforcing rib is provided only on the above-mentioned buttock support part, and the above-mentioned rope-shaped reinforcing rib is not provided on the above-mentioned thigh support part, The left and right end edges of the above-mentioned buttock support part are cut into a curved shape, independent of the above-mentioned left and right skeletons, A through hole is opened in the part surrounded by the above-mentioned rope-shaped reinforcing rib, The rope-like reinforcing rib is formed by bending a part of the seat cushion so as to protrude in a thickness direction of the seat cushion from a part other than the part, The left and right sides of the above-mentioned buttock support part are formed independently.