JPH0339687B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat for a two-wheeled vehicle such as a motorcycle, and more particularly to a method for forming a seat in which a plate-like frame on which a cushion member is placed is formed in the shape of an inverted saucer.

FIG. 1 shows a part of a conventional product, in which a foam cushion member 2 is placed on a metal inverted saucer-shaped frame 1′, and this is covered with a skin member 3.
While the end of the skin member 3 was being pulled in, it was fixed to the bottom surface of the frame 1' with a tassel 4. Therefore,
According to this method, in order to adhere the skin member to the bottom of the sheet without wrinkles, it is necessary to hit the tackers at regular intervals and at narrow intervals.

Therefore, the workability is extremely poor, and furthermore, since the skin member is strongly pulled and fixed, there is a problem that the worker becomes highly fatigued.

The present invention has been made in view of such circumstances. That is, the purpose is to eliminate the problem of having to strongly pull the skin member and tack it down many times.

In order to achieve the above objects, the present invention places a cushion member on a frame, covers this cushion member with a skin member, presses the upper surface of this skin member, and applies high frequency to the end of the skin member. In this method, the welded portion is welded to the outer surface of the lower end of the frame, and then this welded portion is bent inward of the frame and fixed to the bottom surface of the frame. Therefore, since the end of the skin member is welded to the frame, the skin member can be fixed to the frame at once, improving workability compared to conventional products.Also, since the welded part of the skin member is bent and fixed, the skin member can be fixed to the frame at once. The whole part can be stretched and bonded evenly.

Embodiments of the present invention will be described below with reference to FIGS. 2 to 8.

Figure 2 shows a sheet A formed by the method of the present invention.
The skin member 3 constituting the outer surface of the sheet A is adhered without wrinkles.

FIG. 3 shows the state before the skin member 3 is pasted, and the frame shown in 1 in the figure is made of high-frequency weldable synthetic resin such as polypropylene or polyethylene and is formed into an inverted saucer shape so that it can be easily fixed to the vehicle body. Notches 11, 11, . . . and a thin wall portion 112 having a thin wall thickness are provided at regular intervals along the lower end periphery, so that the thin wall portion 112 can be bent inward. At the bottom of this frame 1 are fixed members 13, 1 that are fixed to the vehicle body.
4 is fixed by an appropriate method. This frame 1
A cushion member 2 made of a foamed material is placed or integrally foamed thereon, and this is covered with a skin member 3 to form a sheet A.

The skin member 3 is a member having high frequency weldability such as synthetic resin leather, and its end is connected to a high frequency welding machine 5.
At step 6, welding is performed along the lower edge of the outer surface 1a of the frame 1.

At that time, the entire upper surface 3a of the skin member 3 is pressed in the direction of the frame 1 and welded to form the cushion member 2.
This prevents wrinkles from forming on the skin member 3 due to the elastic force of the elastic force (FIG. 4).

Next, this welded portion A is bent inward from the thin wall portion 12 of the frame 1, and the bent portion B is fixed to the outer surface 1a of the frame 1 with a tacker needle 4 to form a sheet A (FIG. 5).

In FIG. 6, the end of the skin member 3 at the bent portion B is tacked.

7 and 8, the upper surface of the skin member 3 is pressurized and the high-frequency welding machines 5 and 6 are
After welding the ends, bend the welded part A to form a bent part B, and lock the tip of the bent part A to the locking protrusion 15 provided on the bottom surface of the frame 1. Accordingly, the bent portion B is fixed to the frame 1. By fixing the bent portion B to the locking protrusion 15 in this manner, it can be easily fixed without driving the tacker needle 4.

In FIGS. 5, 6, and 8, B indicates the vehicle body.

In the above embodiment, the case where the skin member 3 is made of high-frequency weldable synthetic resin has been described, but when using a material that does not have high-frequency weldability, such as a woven fabric made of natural fibers, or a skin member with low high-frequency weldability. When using a high-frequency welding material, the skin member 3 is attached to the side surface 1a of the frame 1 made of high-frequency welding material via a high-frequency welding member.
Fuse the terminals.

The vehicle seat according to the present invention includes an inverted saucer-shaped frame, a cushion member placed on the frame,
In a vehicle seat comprising a skin member that covers a cushion member and fixes an end to a frame, the skin member has its end welded to the outer surface of the lower end of the frame using high frequency, and the welded portion of the frame is welded to the inside of the frame. It is characterized by bending it towards the side and fixing this bent part to the frame, so that the entire end of the skin member can be welded at once, and moreover, it can resist the elastic force of the cushion member during welding. Welding can be performed while pressing the skin member. Therefore, compared to conventional products in which the end of the skin member is strongly pulled and a large number of tassels are fixed one by one along the end, workability is improved, and moreover, the skin member can be easily tightened without creating wrinkles at the bottom edge of the sheet. can be attached. Further, in the present invention, the welded portion at the end of the skin member is bent toward the inside of the frame, so that the skin member is drawn in by the bending. Therefore, since the skin member is drawn in, it is beautifully stretched without wrinkles.

Thus, the intended purpose can be achieved.

[Brief explanation of drawings]

Fig. 1 is a partial longitudinal sectional view of a conventional product, Figs. 3 to 8 show the present invention, Fig. 2 is a perspective view thereof, and Fig. 3
The figure is a perspective view before tensioning the skin member, Figure 4 is a partial vertical cross-sectional view showing the forming method, Figure 5 is a partial vertical cross-sectional view of the sheet made by that method, and Figure 6 is a portion of the second embodiment. The vertical sectional view, FIGS. 7 and 8 show the third embodiment, FIG. 7 is a partial vertical sectional view showing the molding method thereof, and FIG. 8 is a partial vertical sectional view. In the figure, 1 is a frame, 2 is a cushion member, 3 is a skin member, A is a welded part, and B is a bent part, respectively.

Claims (1)

[Claims] 1. A cushion member is provided on the saucer-shaped frame,
In a vehicle seat in which the cushion member is covered with a skin member and the end of the skin member is fixed to the frame, the end is high-frequency welded to the outer surface of the lower end of the frame while pressing the upper surface of the skin member, Next, the welded portion of the frame is bent inward of the frame, and the bent portion is fixed to the frame.