JPH0217989Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vehicle seat attached to a vehicle such as a motorcycle, and particularly relates to a wide and large multilayer cushion seat for a vehicle.

[Summary of the invention] The present invention uses multiple layers of cushioning materials with different hardnesses, so it is possible to provide a vehicle seat that provides a sufficient cushioning effect without increasing the height of the seat surface.

[Prior technology] There is a wide, large, and luxurious seat that is often installed on large motorcycles, but when a rider straddles this seat, the rider has to sit in a riding position with his/her legs spread apart due to the wide seat. will be taken.

Therefore, when stopping while straddling the seat, the height at which the feet can touch the ground is restricted to be lower than that of a typical slim-shaped seat. It is necessary to lower the seat height, and the thickness of the seat cushion material becomes thinner in relation to the height of the car body, making it impossible to obtain a sufficient cushioning effect, for example, when the car body bounces while driving. etc., the rider's butt compresses the cushion material of the seat, causing a feeling of bottoming out as if it were in contact with the bottom plate of the seat, which could impair ride comfort.

Therefore, in some car models, a recess is formed in a part of the bottom plate of the seat (at the position of the rider's butt), and a cushion material is loaded into the recess to raise the height of the seat surface. Some models used sheets that increased the cushioning effect by increasing the thickness of the cushioning material.

However, the depth of the recess that can be formed in the bottom plate of the seat cannot be made very deep due to the positional relationship of the main frame and fuel tank on the vehicle body side, and as a result, it is not possible to ensure a sufficient thickness of the cushion material, which reduces the cushion's effectiveness. The situation was not necessarily satisfactory.

This invention was created in view of the above problems.
The purpose of the present invention is to provide a vehicle seat that provides a sufficient cushioning effect without increasing the height of the seat surface.

[Means and effects for solving the problems] The present invention has been made to solve the above problems, and uses at least three types of cushion materials having different hardnesses. Then, the hardest first cushion material is disposed within the recess of the bottom plate. Next, a second cushion material that is softer than the first cushion material covers the upper surface of the first cushion material that is the hardest. The second cushion material used at this time is one with relatively high hardness. This second cushion material is disposed around the edge of the recess so as to close the recess of the bottom plate. Then, a third cushion material that is softer than the second cushion material is placed on the second cushion material.

The multilayer cushion material thus formed is coated with a skin material to form a vehicle seat.

[Example] Hereinafter, an example in which a multilayer cushion sheet according to the present invention is applied to a double seat of a motorcycle will be described with reference to the drawings.

However, as a matter of course, the components, other members, and arrangements described or illustrated in the following illustrative examples are not intended to limit the present invention, but are merely illustrative examples.

Fig. 1 is a side view showing the rear part of a motorcycle equipped with a double seat according to the present invention, Fig. 2 is a perspective view of the double seat, Fig. 3 is a plan view, and Fig. 4 is a - line in Fig. 3. Figure 5 is a cross-sectional view according to Figure 3.
It is a sectional view taken along the - line in the figure.

The motorcycle 1 has a large displacement engine 3 supported by a body frame 4 mounted approximately in the center of the vehicle body between a front wheel (not shown) and a rear wheel 2.

A fuel tank 5 is disposed above the engine 3 so as to be supported by a main frame (not shown) of the vehicle body frame 4, and a double seat 6 is provided behind the fuel tank 5 to support the main frame and a seat rail (not shown). The lower portions of both sides of the double seat are in contact with the upper portions of a rear cowl 7 that covers both sides of the rear portion of the vehicle body above the rear wheels 2.

Further, the double seat 6 is located on the front side of the vehicle body (the first
The vehicle includes a rider seat 8 (on the left side in the figure) and a tandem seat 9 behind the rider seat 8.

The rider seat 8 of the double seat 6 is formed into a saddle shape with a wide rear part where the rider's butt rests and a narrow front part that is sandwiched between the rider's thighs, and is continuous with the rear part of the rider seat 8. The tandem seat 9 is integrally formed with the rider seat 8 in a slim shape by narrowing the width at the rear.

The double sheet 6 covers a bottom plate 10 serving as a backbone, a cushion material 11 disposed on the top of the bottom plate 10, and covers the cushion material 11, and has a peripheral edge connected to the peripheral edge of the bottom plate 10. It is composed of a skin member 12 that is fixedly provided.

Further, the skin member 12 has a wading material 13a on a portion that covers the seat surface of the rider seat 8 and the seat surface of the tandem seat 9, respectively, and a skin material 13b such as vinyl leather and a wadding cover 13 such as a non-woven fabric.
It is formed as a skin member sandwiched between the sheet and the sheet c, and has a luxurious finish.

On the other hand, the bottom plate 10, which is the backbone of the double seat 6, is formed in a substantially U-shaped cross section with an open lower surface, and has an uneven ceiling portion to match the shape of the mounting portion on the vehicle body side. A recess 10 is provided in a portion of the bottom plate 10 below the buttocks of a rider riding on the rider seat 8 (the portion indicated by a broken line in FIG. 3).
a is formed.

The cushion material 11 disposed on the upper part of the bottom plate 10 and covered with the skin member 12 has a high hardness (relatively hard ), the first cushion material 11a is made of, for example, low-expansion, open-cell urethane foam, etc.
Then, a material of medium hardness, such as foam rubber or closed-cell and open-cell foam, is supported on the edge of the recess 10a so as to close the upper part of the recess 10a, and is stretched across the upper part of the first cushion material 11a. The second cushion material 11b is formed into a plate shape and is made of urethane foam or the like with a mixture of urethane foam and the like, and covers the entire upper part of the flat part 10b of the bottom plate 10 other than the upper part of the second cushion material 11b and the recess 10a. Low hardness (relatively soft), such as highly foamed
It has a three-layer structure including a third cushion material 11c such as open-cell urethane foam, and the cushion materials 11a, 11b, and 11c are bonded to each other with an adhesive, or the first cushion material 11a is Alternatively, it is formed by integrally molding the second cushion material 11b during foam molding of the third cushion material 11c.

Then, by the first cushion material 11a loaded into the recess 10a of the bottom plate 10, a flat surface having some elasticity and acting as a bottom part is formed on substantially the same plane as the flat part 10b of the bottom plate 10. Also, the first cushion material 11a
The second cushion material 11b covers the upper part of the first cushion material 11a and the third cushion material 11c.
Since it has a hardness intermediate between the two cushion materials 11a and 11c, it acts as a buffer material between the two cushion materials 11a and 11c, and when the rider's butt sinks into the rider seat 8 due to bounce of the vehicle body, etc., the bottom A good cushioning effect is obtained without causing a feeling of foreign body even when it comes into contact with the stepped portion of the mouth edge of the recess 10a of the plate 10, and the rider can enjoy the relaxing riding characteristic of a large seat, especially when touring over long distances. It will be comfortable.

Further, by providing the tandem seat 9 at a higher position than the rider seat 8, a sufficient thickness of the third cushion material 11c is ensured, and a good cushioning effect can be obtained.

Therefore, as described above, the double seat 6 according to the present embodiment has a luxurious design in which the rider seat 8 is wide and saddle-shaped and is covered with the skin member 12 having the wading material 13a, and the rider's feet are A good cushioning effect can be obtained without increasing the thickness of the cushioning material in order to ensure ground contact, and the seat can be made with excellent riding comfort.

In addition, although this embodiment has been described as an example in which the present invention is applied to a rider seat of a double seat of a motorcycle, motorcycles/tricycles, buggies, three-mobiles, etc. that have only a rider seat other than a double seat,
It can also be suitably used for straddle-type seats of other vehicles such as personal watercraft and riding machines.

[Effects of the invention] Since the invention is configured as described above,
It has the following effects.

To provide a vehicle seat that provides a sufficient cushioning effect without increasing the height of the seat surface.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the rear part of a motorcycle with a double seat attached, Fig. 2 is a perspective view of the double seat, Fig. 3 is a plan view, and Fig. 4 is a sectional view taken along the - line in Fig. 3. FIG. 5 is a sectional view taken along the - line in FIG. 3. 6...double seat, 8...rider seat,
9... Tandem seat, 10... Bottom plate, 10a... Recess, 11... Cushion material, 1
1a...first cushion material, 11b...second cushion material, 11c...third cushion material, 12...
...Skin member, 13a...Wading material, 13...
b Skin material, 13c...wading cover.

Claims (1)

[Scope of utility model registration request] A sheet comprising a bottom plate forming a recess, a cushion material placed on the bottom plate, and a skin material covering the cushion material,
The cushion material is comprised of at least three cushion materials having different hardnesses, with a first cushion material being the hardest being disposed in a recess in the lower part of the bottom plate, and a second cushion material being softer than the first cushion material.
A cushion material is disposed to cover the upper surface of the first cushion material, which is the hardest, and to close the recess and hang over the edge of the recess, and a third cushion material that is softer than the second cushion material is further provided. A multi-layered cushion sheet for a vehicle is formed using the above-mentioned second cushion material and formed into a wide and large size.