JPS6122064Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a seat device for a vehicle such as a motorcycle or a motorized tricycle.

In this type of vehicle, the fuel tank is mounted and supported on the seat post that is raised from the body frame.
A seat device is proposed in which a seat is disposed on the seat and the seat can be raised and lowered to open and close. In this type of seat device, the weight of an occupant sitting on the seat is supported by a fuel tank interposed between the seat and the vehicle body. Therefore, it is necessary to increase the strength and rigidity of the fuel tank, which increases the thickness and weight of the fuel tank.As the thickness increases, the molding pressure increases, making molding difficult and troublesome. The manufacturing cost of the tank is high, the materials used are also expensive, and the molding structure becomes complicated due to the use of ribs and reinforcing shapes to increase strength and rigidity, making molding troublesome and complicated. .

The present inventor devised this invention in order to improve the above-mentioned problems with the type that has a seat on the fuel tank. By using this as the outer cover of the tank, supporting the seat with a seat post, etc., and supporting the passenger's weight mainly on the frame side, the load on the fuel tank is significantly reduced, and the thickness of the fuel tank plate is also reduced. It is an object of the present invention to provide a seat device for a motorcycle, etc., which is easy to manufacture, lightweight, simple in structure, and cost-reduced.

Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a motorized tricycle as an example of a vehicle in which the present invention is implemented, and the tricycle 1 consists of a front frame 2 and a rear frame 3.
A single front wheel 4 serving as a steering wheel is provided at the front of the frame, and the front wheel 4 is steered by a handle 6 that can protrude onto a handle post 5 erected on the front of the frame. The rear frame 3 supports a prime mover (not shown), and rear wheels 7, 7, which are driving wheels, are provided on the left and right sides of the rear frame 3, and these are covered with a rear fender 8. The frame 3 is connected to a swing joint 9 attached to the rear lower surface of the front vehicle body 2 via a rolling joint 10.

As is clear from FIG. 2, a seat post 11 is installed on the rear part of the front frame 2. The seat post 11 is made of, for example, a pipe material, and as shown in FIG. Pipe material 1
It consists of 1-1 and 11-2. A support plate 12 is installed and fixed between the upper ends of the two pipe materials 11-1 and 11-2 that constitute the seat post 11, and the support plate 12 has a portion 12 extending forward from the upper end of the seat post 11.
Equipped with a. In front of the seat post 11 are pipes 11-1 and 11- that constitute the seat post.
The fuel tank 13 is disposed so as to span between the two front surfaces, and the bolt 1 is attached to the rear end of the upper surface 13a of the fuel tank 13 to the lower surface of the front extending portion 12a of the support plate 12 described above.
Bind using a fastener such as No. 4. Pipe material 11-
A horizontally long support plate 15 is installed between the lower front surfaces of the support plates 12 of 1 and 11-2, and a bracket 16 is fixed to the lower part of the rear wall 13b of the fuel tank 13, and the bracket 16 is attached to the left and right sides of the support plate 15. Place it on the front and fasten it with a fastener such as a bolt or nut 17. Thus, the fuel tank 13 is connected to the seat post 11.
The tank 13 will be installed and supported in front of the tank 13.
The upper surface 13a is located at a lower position than the upper end of the seat post 11.

A passenger seat 18 is disposed above the fuel tank 13 and the seat post 11, and the front end of the bottom plate 19 of the seat 18 is pivotally connected via a hinge member 20 provided on the front end of the upper surface 13a of the fuel tank 13. ,
Raise it forward via the pin 21 of the hinge part 20,
Open and close the top of the tank 13. Seats 22, 22 made of rubber or the like are provided at the middle or rear lower surface of the seat bottom plate 19.
Specifically, a protrusion 2 is fixed on the upper part of the seats 22, 22.
2a, 22a are provided, and these are tightly fitted into the engagement holes 19a, 19a provided in the bottom plate 19, and the seats 22, 22
The lower surface of the support plate 12 is arranged so as to sit on an extension of the upper end of the seat post 11, and the portion with seats 22, 22 is set at a position on the seat where the weight of the occupant is applied, and the load of the support plate 12 is applied. The level and the pin 21 of the hinge portion 20 are approximately at the same level. The above seat post 11 is covered with a cover 23 from the bottom including the top.

In the above, when the occupant is sitting on the seat 18, the weight is applied to the middle part or the rear part of the seat 18, and the load is applied to the seat pipes 11-1 and 11-2 under the support plate 12 through the seat 22, that is, to the frame side. It takes. Therefore, the load is mainly borne by the frame, and the load applied to the fuel tank 13 is significantly reduced.

As is clear from the above, according to the present invention, in a motorcycle equipped with a fuel tank under the seat, the seat is supported on the frame side by a support plate provided at the upper end of the seat post, and one end of the seat is attached to the fuel tank. The load applied to the fuel tank is mainly supported by the frame side, and the load applied to the fuel tank is reduced as much as possible.Therefore, there is no need to set the strength and rigidity of the fuel tank to support the load by itself.
It has many advantages, such as reducing the plate thickness of the fuel tank, facilitating molding, simplifying the structure, and further reducing the weight, as well as simplifying the mounting structure of the fuel tank.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a vehicle as an example of the invention being implemented, Fig. 2 is an enlarged longitudinal cross-sectional view of the same main part, and Fig. FIG. In the drawings, 2 and 11 are frames, 13 is a fuel tank, 18 is a seat, 19 is a seat bottom plate, and 12 is a support portion.

Claims (1)

[Scope of utility model registration request] A fuel tank is attached to the seat post, a part of the seat bottom plate is locked to this fuel tank, a seat made of rubber or the like is provided at the position of the seat bottom plate where the weight of the occupant is most applied, and this seat is installed at the upper end of the seat post. A seat device for a motorcycle, etc., characterized in that the seat is located substantially opposite to a supporting plate, and the seat is located on an extension of the seat post.