JPS6241648Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sheet with a built-in air bag, and particularly to a sheet whose front surface side can be uniformly inflated.

Conventionally, a seat with a built-in air bag has an air bag 2 housed in a recessed portion of a cushioning material 1 (first cushioning material) constituting the sheet, as shown in FIG. Above air bag 2
A cushioning material 3 (second cushioning material) is placed on the surface side of the cushioning material 3, and the entire cushioning material 3 is covered with a leather or synthetic resin sheet (not shown).
When using this sheet, the height of the surface side of the sheet, cushioning force, and hardness can be adjusted by feeding a certain amount of air into the air bag 2 from the air supply/discharge mechanism to inflate the air bag 2. can.

However, with this configuration, when this sheet is used, the parts of the body that are most subjected to pressure, for example, the parts corresponding to the buttocks of the body, are greatly depressed, but the parts that do not receive pressure are depressed. On the contrary, it protrudes greatly outward,
This protruding portion has a disadvantage in that it comes into contact with a part of the body, causing discomfort.

Furthermore, when air is pumped into the air bag 2, the central part 2a of the air bag swells more than the corners, resulting in poor air contact.

The purpose of the present invention is to provide a hard plate that fits into the recess of the first cushioning material between the air bag and the second cushioning material, and to uniformly inflate almost the entire sheet surface, thereby solving the above-mentioned drawbacks. This will be explained in detail below using examples.

FIG. 2 is a sectional view showing an embodiment of the air bag built-in sheet according to the present invention, and in the same figure, 10 is a first cushioning material constituting the sheet, which is placed on a frame (not shown). A recess 12 for accommodating the air bag 11 is formed approximately on the central surface side. A plate 13 is placed at the bottom of the recess 12, and this plate 13 has a cylindrical guide portion 1.
3a, and a guide rod 14 that projects perpendicularly from the lower surface of a plate 15 installed on the upper side of the air bag 11 is inserted into this guide portion 13a so as to be vertically movable. With this configuration, the guide rod 14 is guided in the vertical direction by the guide portion 13a, and the plate 15 can be prevented from rolling, and the plate can be smoothly moved up and down based on the expansion and contraction of the air bag 11. The plate 15 is made of a hard material such as a synthetic resin plate or a metal plate, and a second buffer material 16, which is separate from or integrated with the first buffer material 10, is provided on the upper side of the plate 15. These cushioning materials 10 and 16 are entirely covered with a skin material (not shown).

According to the above configuration, by feeding a predetermined amount of air into the air bag 11 to inflate the air bag 11 by a predetermined amount, the height of the plate 15 can be adjusted by this force. The height of the supported second cushioning material 16, that is, the height of the sheet surface can be adjusted.

Therefore, the part where no pressing force is applied to the second cushioning material 16 as in the conventional case may expand larger than other parts and hit the body, causing discomfort, or the air bag 11 may It is possible to solve problems such as the center side of the sheet bulging out greatly and the sheet surface becoming curved, resulting in poor contact. Therefore, by using such a seat as the seat cushion or seat back of a vehicle seat, the height, cushioning force, and hardness of the seat can be adjusted freely, improving the sense of comfort for the driver. You can.

In addition, in the present invention, the air bag 11 is connected to the plate 1.
5, the present invention is not limited to this, and as shown in FIG. 3, independent air bags 11a and 11b may be provided on the left and right sides of the air bags 11a and 11b. In addition, the shape of the plate 15 is as shown in FIG.
5 may be shaped so that it is concave in the rear direction so that the back can be held softly, or even if a plurality of protrusions 20 are formed on the surface side as shown in figure b, or as shown in figure c. Even if the unevenness is formed by providing a concave part 21 and a convex part 22 extending in the width direction of the seat as shown in FIG. It may also be formed from a molded plate. Further, the plate 15 may be formed from hard urethane foam. In addition, the guide portion 13a
Alternatively, the plate 13 may be omitted and the plate 13 may be formed on the bottom surface of the recess 12 itself, as shown in FIG. 4a. In short, any material that can guide the guide rod 14 up and down will suffice.

As explained above, according to the sheet with a built-in air bag according to the present invention, the recess 12 is provided on the surface side of the first cushioning material 10 constituting the sheet, and the recess 1
In the air bag built-in sheet in which the air bag 11 is stored in the air bag 11 and the front side thereof is covered with a second cushioning material 16, a hard plate 15 that fits into the recess 12 of the first cushioning material 10 is inserted into the air bag 11. Since it is provided between the bag 11 and the second cushioning material 16, this plate allows the height and height of the sheet to be uniformly adjusted over the entire surface of the sheet.
The cushioning force and hardness can be adjusted, and the problem of conventional cushioning where a part of the cushion bulges out to a large extent, causing discomfort, can be solved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a conventional sheet with a built-in air bag, FIGS. 2 and 3 are sectional views showing an example of a sheet with a built-in air bag according to the present invention, and FIGS.
b, c, d are sectional views and perspective views showing details of the plate used in the present invention. 10...First buffer material, 16...Second buffer material, 1
DESCRIPTION OF SYMBOLS 1... Air bag, 12... Recessed part, 13a... Guide part, 14... Guide rod, 15... Plate.

Claims (1)

[Scope of utility model registration request] In an air bag built-in sheet, a recess 12 is provided on the front side of a first cushioning material 10 constituting the sheet, and an air bag 11 is stored in the recess 12, and the front side is covered with a second cushioning material 16. , a hard plate 15 that fits into the recess 12 of the first cushioning material 10 is provided between the air bag 11 and the second cushioning material 16, and a guide rod 14 is vertically moved from the back surface of the plate 15. A cylindrical guide portion 13a that protrudes and into which the guide rod 14 is inserted and guides the guide rod 14 in the vertical direction is inserted into the recess 1.
A seat with a built-in air bag characterized by being provided on the bottom side of the seat.