JPH1095376A - Motorcycle seat device - Google Patents

Abstract

(57) [Problem] To prevent the generation of noise around a hinge pin. A hinge (7) for rotatably connecting a seat (6) to a fuel tank (5) is formed by connecting a vehicle body side hinge plate (10) and a seat side hinge plate (11) with hinge pins (12), and one end of the vehicle body side hinge plate (10). The free end side of the pin pressing member 13 in the form of a leaf spring fixed to the hinge pin 12 abuts against the hinge pin 12, and the spring is constantly biased so as to press the hinge pin 12 against the pin hole 41 of the seat side hinge plate 11. The seat side hinge plate 11 is used for the vibration isolating rubber 1
It is attached to the bottom plate 17 of the seat 6 via the members 4 and 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat device rotatably mounted on a vehicle body via a hinge, and more particularly to a seat device for reducing noise generated around a hinge pin.

[0002]

2. Description of the Related Art Japanese Utility Model Laid-Open Publication No. 61-14946 discloses a vehicle body hinge plate attached to a vehicle body and a seat side hinge plate attached to a seat, which are connected by hinge pins and provided for passing the hinge pins. There is shown a motorcycle seat device in which a pin hole of a hinge plate is made larger in diameter than a hinge pin, and an elastic member is interposed between the opposed hinge plates.

[0003]

With the construction as in the above conventional example, play is formed between both hinge plates, and transmission of vibration between the vehicle body and the seat can be prevented. However, even in this case, noise may occur due to contact between the hinge pin and the inner surface of the pin hole. Then, this invention aims at solving such a problem.

[0004]

In order to solve the above-mentioned problems, a motorcycle seat apparatus according to the present invention comprises a vehicle body side hinge plate mounted on a vehicle body side and a seat side hinge plate mounted on a seat side. In the motorcycle seat device in which the seat is rotatably mounted on the vehicle body by connecting the hinge pins, the hinge pins are spring-loaded so as to press against the inner surfaces of the pin holes of the hinge plate provided for passing the hinge pins. A pin pressing member for urging is provided.

This member may be provided on either the vehicle-side hinge plate side or the seat-side hinge plate, and its constituent material is a metal spring member such as a leaf spring or a coil spring, or a rubber or synthetic resin spring member. Is possible.

[0006] In the hinge device thus configured, the seat side hinge plate may be elastically supported on the seat.

【The invention's effect】

According to the present invention, since the hinge pin is urged and pressed against the inner surface of the pin hole by the pin pressing member, noise is less likely to be generated between the hinge pin and the inner surface of the pin hole.

In addition, if the seat side hinge plate is elastically supported on the seat, the transmission of vibration from the vehicle body side to the seat side is prevented, so that a seat apparatus with less noise and vibration can be obtained.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side sectional view of a seat device according to the present invention, FIG. 2 is a cross-sectional view showing a further enlarged hinge portion, FIG. 3 is an overall side view of a motorcycle using the seat device, and FIG. FIG. 5 is a front view of a hinge portion.

First, in FIG. 3, a motorcycle supports a front wheel 2 and a rear wheel 3 in front and behind a body frame 1 extending in the front-rear direction, and has a fuel tank 5 mounted on a seat rail 4 extending in a left-right pair. And a tandem type seat 6 is supported thereon, and a front end thereof is rotatably supported by a front end of the fuel tank 5 via a hinge 7.

Reference numeral 8 in the drawing denotes a vehicle body cover, which covers the side and rear of the vehicle body including the fuel tank 5 below the seat 6. Reference numeral 9 denotes an engine, which takes in air from an air cleaner 9a and a carburetor 9b supported on the vehicle body frame 1.

As shown in FIG. 1, the hinge 7 connects the vehicle-side hinge plate 10 and the seat-side hinge plate 11 with a hinge pin 12, and connects the free end side of a leaf spring-shaped pin pressing member 13 to the hinge pin 12. It has an abutting structure.

The vehicle body side hinge plate 10 is attached to a pin pressing member 13 and a front portion of the upper surface of the fuel tank 5 on the vehicle body side in a manner to be described later, and the seat side hinge plate 11 is bolted via a cylindrical vibration isolating rubber 14. It is attached to the bottom plate 17 of the seat 6 by a nut 15 and a nut 16 (FIG. 2).

Reference numeral 18 in the figure denotes a bracket extending forward from the upper portion of the fuel tank 5, and the upper end of the vehicle body cover 8 that covers the front portion of the fuel tank 5 has a bolt 19 at its tip.
And a nut 20.

Reference numeral 21 denotes a vibration-proof rubber attached to the center of the front portion of the bottom plate 17, the lower portion of which is connected to the seat-side hinge plate 11, and reference numeral 22 denotes a similar vibration-proof rubber mounted to the middle portion of the bottom plate. The lower portion is configured to contact the upper surface of the fuel tank 5 when the seat 6 is folded down.

Reference numeral 23 denotes an inlet cap of the fuel tank 5, and 24 denotes a pair of stays provided on the left and right sides of the bottom of the fuel tank 5, each of which is attached to a stay 25 provided on the seat rail 4.

FIG. 2 is an enlarged view of the hinge 7, and the cross section of the hinge 7 is along the line 2-2 in FIG. As apparent from this figure, the bolt 15 has its head 30 implanted in the thickness of the bottom plate 17 made of synthetic resin.

A cylindrical anti-vibration rubber 14 is attached to the front left and right of the seat side hinge plate 11 corresponding to the bolt 15, and a through hole 14a formed in the axial direction (FIG. 4).
), And is fixed by a nut 16 through a bolt 15.

The vibration-proof rubber 21 is also integrated with the seat-side hinge plate 11 by fitting a projection 31 having a lower neck portion into a mounting hole 32 provided at the center of the front end of the seat-side hinge plate 11, and The bottom plate 17 is also received.

Therefore, the seat side hinge plate 11
By means of these vibration isolating rubbers 14 and 21, the sheet 6
Elastically supported. In addition, the vibration isolating rubber 14
And 21 can be formed from a known elastic material such as rubber or synthetic resin.

As apparent from FIG. 2 and FIGS. 4 to 6,
The seat-side hinge plate 11 has an anti-vibration rubber 21 attached to a mounting hole 32 provided at the center of the front end, and anti-vibration rubbers 14 attached to mounting holes 33 provided at the front left and right.

The front side surface of the seat side hinge plate 11 forms a pin support portion 34 bent downward, and the hinge pin 12 is supported by inserting both ends into a pin hole 35 provided here. In this support structure, one end or both ends of the hinge pin 12 are welded to the pin support portion 34, or the hinge pin 12 is retained by a suitable retaining means such as a circlip.

A pair of overhanging portions 36 extending laterally from the vehicle body side hinge plate 10 in a plan view are formed on the right and left rear portions of the seat side hinge plate 11, and each have a substantially U-shaped cutout portion 37. Is provided.

The vehicle-side hinge plate 10 is provided on the left and right
0, and a pin hole 41 having an inner diameter slightly larger than the outer diameter of the hinge pin 12 is provided at each front end.

The vehicle-side hinge plate 10 and the seat-side hinge plate 11 face each front end, overlap the left and right pin support portions 34 and the upright wall 40, and make the respective pin holes 35 and 41 coincide with each other and pass through the hinge pin 12. By doing so, they are relatively rotatably connected.

Helmet holders 42 are formed on the right and left rear portions of the vehicle body side hinge plate 10 at positions overlapping the overhanging portions 36. The helmet holder 42 has an intermediate portion bent to form a hook portion 43, a front end 44 side forms a free end that stands up, and projects upward through the cutout portion 37 when the seat 6 is folded down. .

Therefore, as shown in FIG.
Is opened, the chin strap 45 of the helmet is locked to the hook portion 43, and then the seat 6 is closed. The leading end 44 is surrounded by the overhang portion 36 and the hem portion 46 extending downward from the side of the seat 6. Unless the sheet 6 is opened again, the chin string 45 cannot be removed from the hook portion 43.

The pin pressing member 13 is formed of a single flat metal leaf spring, and its rear portion is formed with a pair of mounting legs 51 on the left and right sides by a notch 50, and the fuel tank is formed by a nut 52 and a bolt 26. Mounted on the 5th side.

As shown in FIG. 2, the bolt 26 has its head welded to a stay 27 provided at the front end of the upper surface of the fuel tank 5. The bolt 26 is used to apply a hinge plate to the vehicle body. 10, the rear ends of the pin pressing member 13 and the bracket 18 are fastened together.

The distal end portion 53 of the pin pressing member 13 forms a free end of a curved surface that abuts along the outer periphery of the hinge pin 12. I have.

A bent portion 54 is provided at an intermediate portion of the pin pressing member 13.
Are formed to secure the amount of elastic deformation required for biasing the spring.

Next, the operation of the present embodiment will be described. FIG.
As is apparent from FIG.
3 is biased by a spring so as to be constantly pressed against the inner surface of the pin hole 41 by the distal end portion 53.

Therefore, if such a pin pressing member 13 does not exist, even if there is a slight gap between the hinge pin 12 and the inner surface of the pin hole 41 that generates noise due to vibration of the vehicle body or the like, Since the hinge pin 12 is pressed strongly against the inner surface of the pin hole 41 by the pin pressing member 13 in advance, such noise is less likely to occur.

Further, the vibration isolation rubbers 14 and 21 elastically support the seat side hinge plate 11 with respect to the seat 6, so that transmission of vibration from the vehicle body side to the seat side can be prevented, and noise generated by the hinge pins 12 is generated. To some extent.

FIGS. 6 to 8 are perspective views of the vehicle body side hinge plate showing modified examples of the pin pressing member.
Is provided with a pair of lead-shaped pin pressing members 60.

The pin pressing member 61 of FIG. 7 is the same as the pin pressing member 13 except that its free end is pressed below the hinge pin 12.

The pin pressing member 62 shown in FIG. 8 is formed of a suitable material such as rubber into a shape similar to a half-cylindrical shape of a cylinder. It is inserted under the hinge pin 12 so as to enter.

On the outer periphery of the pin pressing member 62, a positioning projection 64 is integrally formed, and the vehicle body side hinge plate 1 is formed.
It is attached to a recess or the like provided in advance at the bottom of the O and is positioned.

6 to 8 are different from each other only in the pin pressing member, and the other members are common.
5 to FIG. In each figure, only the nut 52 is shown for convenience, and the bolt 26 (see FIG. 2) on the other side is omitted.

Further, the present invention is not limited to the one shown in the drawings, and can be variously modified. For example, both ends of the hinge pin 12 are attached to the vehicle-side hinge plate 10 side, and the hinge pin 12 passes through the seat-side hinge plate 11 side. It may be just.

Further, the pin pressing member can be attached to the hinge plate 11 on the seat side. When the pin pressing member is formed as a leaf spring, the material can be formed not only of metal but also rubber or synthetic resin.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a seat device according to the present invention.

FIG. 2 is an enlarged sectional view of the hinge portion.

FIG. 3 is an overall side view of a motorcycle using the seat device.

FIG. 4 is a plan view of a hinge portion.

FIG. 5 is a front view of a hinge portion.

FIG. 6 is a perspective view of a vehicle body side hinge plate showing a modification of the pin pressing member.

FIG. 7 is a view similar to FIG. 6, showing another modification.

FIG. 8 is a view similar to FIG. 6, showing still another modification.

[Explanation of symbols]

Fuel tanks 5 :, 6: Seat, 7: Hinge, 10: Body side hinge plate, 11: Seat side hinge plate, 1
2: hinge pin, 13: pin pressing member, 14: anti-vibration rubber, 21: anti-vibration rubber, 60/61/62: pin pressing member

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Kazuo Suzuki 1-4-1 Chuo, Wako-shi, Saitama

Claims (2)

[Claims] 1. A motorcycle in which a seat is rotatably mounted on a vehicle body by connecting a vehicle body side hinge plate mounted on the vehicle body side and a seat side hinge plate mounted on the seat side with hinge pins. A seat device for a motorcycle, further comprising a pin pressing member for urging the hinge pin so as to press against the inner surface of a pin hole of a hinge plate provided for passing the hinge pin. 2. The motorcycle seat apparatus according to claim 1, wherein the seat side hinge plate is elastically supported on the seat.