JPS6355474B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a cushion material having a predetermined thickness placed on a seat bottom plate, and an outer skin that covers the outer periphery of the cushion material and integrates the seat bottom plate and the cushion material. , relates to an improvement in a motorcycle seat supported on a frame on the rear side of a fuel tank.

Generally, in this type of motorcycle seat, the cushion material is deformed due to the tensile force generated on the outer skin when the rider is seated, causing the front end of the seat to curve backwards, thereby creating a gap between the front end of the seat and the rear surface of the fuel tank provided on the front side. This spreads and impairs the appearance of the motorcycle when the motorcycle is seated, and if the cushion material is repeatedly deformed due to long-term use, this deformation will not completely recover, further impairing the appearance of the motorcycle. .

As a technology to solve such problems,
- There is a technology as shown in the drawing of No. 44927, but in this technology, the outer skin is attached directly to the tip of the extension part that is provided at the front end of the seat bottom plate and extends diagonally forward and upward. The outer skin is easily damaged by tensile force, and since the front end of the cushion material is only in contact with the upper side of the tip of the extension, it is likely to shift, and the deformation will not fully recover after long-term use. There remains the problem of becoming.

The present invention has been made in view of these circumstances, and its main purpose is to minimize the rearward curvature of the front end of the seat when seated, and to reduce the appearance of the seat by widening the gap between it and the rear surface of the fuel tank. To provide a motorcycle seat that does not cause deformation, completely recovers from deformation even after long-term use, and prevents unreasonable force from being applied to the outer skin even when a large load is applied by sitting on the seat.

The present invention will be described below with reference to the drawings. FIG. 1 shows a motorcycle using a seat according to an example of the present invention. The main components of the frame of the motorcycle are a main pipe 12 and a down tube 13 fixed to a head pipe 11, and a back stay 14 fixed to the rear part of the main pipe 12. 20 is fixed, and a seat 30 is fixed to the rear thereof.

As shown in FIGS. 2 and 3, the seat 30 includes a seat bottom plate 31 made of synthetic resin, a cushion material 32 made of foamed resin, and a cushion material 3 made of foamed resin.
2 and an outer skin 33 made of synthetic leather that covers the outer periphery of the main body 2. The seat bottom plate 31 includes a horizontal plate portion 31a that extends substantially horizontally, and a rear inclined plate portion 31b that slopes upward rearward from the rear end of the horizontal plate portion 31a.
and a pair of side plate parts 31c extending downward from both left and right edges of the horizontal plate part 31a and the rear inclined plate part 31b, which are integrally formed. Further, a plurality of ribs 311 are formed on the horizontal plate part 31a in the front-rear direction and in the left-right direction, and a plurality of ribs 311 are formed on the horizontal plate part 31a at approximately the center of the front end along the rear surface of the fuel tank 20 with a slight gap. A front inclined plate portion 31d is formed which extends obliquely forward and upward. The center of this front inclined plate part 31d and the horizontal plate part 3
Between the center of the front part of 1a is a triangular standing plate part 3.
1e is formed. These front inclined plate parts 31
d and the upright plate portion 31e are integrally formed with the horizontal plate portion 31a, the rear inclined plate portion 31b, and the side plate portion 31c. On the other hand, a pair of left and right locking pieces 34 are attached to mounting bolts 34a provided on the horizontal plate part 31a at the lower front part of the horizontal plate part 31a of the seat bottom plate 31.
It is installed through. This locking piece 34 is
It has a recess 34b that opens forward, and can be engaged with an engaging pin 12b supported by a pair of left and right support brackets 12a fixed to the main pipe 12. Furthermore, a locking hook 35 is attached to a recess 312 at the rear of the lower surface of the horizontal plate portion 31a via a mounting bolt 35a provided on the horizontal plate portion 31a, and a pair of left and right damper sheets 36 are attached. . This locking hook 35 is inserted into the insertion hole 121 of the second support bracket 12c fixed to the rear end of the main pipe 12, and is locked to the lever 12d which is elastically and rotatably attached. At the same time, the damper sheet 36 is supported on the upper surface 122 of the second support bracket 12c. Note that a recess 313 is formed in the substantially central portion of the rear surface of the rear inclined plate portion 31b, and this recess 313 is covered by a removably attached lid 37.
As a result, the rear surface of the rear inclined plate portion 31b and the lid body 3
A storage section R that can store documents, etc. is formed between 7 and 7.

A cushion material 32 having a predetermined shape is placed on the seat bottom plate 31 formed in this manner, and by fixing the lower edge of the outer skin 33 covering the entire outer periphery of the cushion material 32 to the seat bottom plate 31, the seat bottom plate It is integrated into 31. Cushion material 32
is placed on the horizontal plate part 31a and the rear inclined plate part 31b of the seat bottom plate 31, and the seat bottom plate 31
It is arranged to cover the outer peripheral surfaces of the side plate portions 31c and the front inclined plate portion 31d. Front inclined plate part 31
d is the front end of the cushion material 32, and the sheet 3
The front inclined plate portion 3 extends upward along the front edge of the
The front surface of 1d is covered with an outer skin 33 with the front end of the cushion material 32 sandwiched therebetween. The seat 30 has its locking piece 34 locked to the engagement pin 12b, its locking hook 35 locked to the lever 12d, and each damper sheet 36 supported on the upper surface 122 of the second support bracket 12c. It is removably supported and fixed on the main pipe 12.

In the seat 30 supported and fixed in this manner, the front inclined plate portion 31d of the seat bottom plate 31 is located along the rear surface of the fuel tank 20 as well as the front end surface of the seat 30. Therefore, when the operator sits on the seat 30,
Deformation of the front end portion of the cushion member 32 due to the tensile force of the outer skin 33 is suppressed by the front inclined plate portion 31d, and as a result, the rearward curvature of the front end of the seat 30 is reduced, thereby reducing the distance between the front end of the seat 30 and the rear surface of the fuel tank 20. Since the gap does not widen, the appearance of the motorcycle when seated is not impaired. Further, since the slight deformation when sitting is due to compressive deformation of the front end of the cushion material 32 located on the front surface of the front inclined plate portion 31d, the deformation almost completely returns after the load due to sitting is removed. Therefore, even after long-term use, the appearance of the motorcycle will not be impaired. In addition, outer skin 3 has the largest deformation due to seating.
Since the upper front end of No. 3 only covers the front inclined plate portion 31d via the cushion material 32, it is easily deformed.
Therefore, even if the load due to seating is large, there is no risk of damage to the outer skin 22 due to excessive force.

In this embodiment, an example is shown in which the front inclined plate portion 31d of the seat bottom plate 31 is formed at the center of the front end of the horizontal plate portion 31a, but it may also be formed on the entire front edge of the horizontal plate portion 31a good. Further, the present invention includes a cushion material having a predetermined thickness placed on a seat bottom plate, and an outer skin that covers the outer periphery of this cushion material to integrate the seat bottom plate and the cushion material, This can be applied to various motorcycle seats supported on side frames.

As is clear from the above description, in the present invention, in the various motorcycle seats described above, an extension portion extending diagonally forward and upward along the rear surface of the fuel tank is provided at the front end portion of the seat bottom plate, and the extension portion is Its structural feature is that it is located inside the front end of the cushion material, and the front surface of the extension part is covered by the outer skin through the front end of the cushion material, so that when an occupant is seated, It is possible to provide a seat in which the front end of the seat is curved backward and the gap between it and the rear surface of the fuel tank is widened, which does not impair the appearance of the motorcycle, and in which no excessive force is applied to the outer skin. .

[Brief explanation of the drawing]

FIG. 1 is a side view of a motorcycle using a seat according to an example of the present invention, FIG. 2 is an enlarged vertical side view showing the rear part of the motorcycle, and FIG. 3 is a configuration of the seat used in the motorcycle. FIG. 3 is an enlarged bottom view of the seat bottom plate. Explanation of symbols, 12... Main pipe, 20...
Fuel tank, 30... Seat, 31... Seat bottom plate, 31a... Horizontal plate part, 31d... Extension part (front inclined plate part), 32... Cushion material, 33...
outer skin.

Claims (1)

[Claims] 1 A cushion material having a predetermined thickness placed on a seat bottom plate, and an outer skin that covers the outer periphery of this cushion material to integrate the seat bottom plate and the cushion material, and is placed on a frame on the rear side of the fuel tank. In the motorcycle seat, an extension portion extending diagonally forward and upward along the rear surface of the fuel tank is provided at a front end portion of the seat bottom plate, and the extension portion is located inside the front end portion of the cushion material. ,
A motorcycle seat characterized in that the front surface of the extension part is covered with the outer skin through the front end of the cushion material.