JPH07228278A - Mounting structure of seat for motorcycle - Google Patents

Abstract

PURPOSE:To perform stable attachment of a seat for a motorcycle and reduce the number of part items and the number of assembly processes. CONSTITUTION:A seat rail 5 is formed of a pipe material comprising a front 14 spreading from the right and left sides of a main frame 8 toward the rear; and the rear 16 wider than the front 14. A seat 4 for a motorcycle is provided on the front side, at a central part, and on the rear side with a front lock bracket 18, a central part lock bracket 20, and a rear bracket 22, respectively. The front lock bracket 18 and the central part lock bracket 20 of the brackets are locked to a lock groove, formed in a fuel tank, and the front 14, respectively, of the seat rail 5 and the rear bracket 22 is fixed to a fixed bracket erected from the right and the left of the rear of the seat rail 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a motorcycle seat on a vehicle body.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 4 and 5, a motorcycle seat a is mounted on a vehicle body b by front locking brackets c provided on the vehicle front side, center portion and rear side of the seat a, respectively. Each of the central locking bracket d and the rear brackets e and e (only one of which is shown in FIG. 4) is provided in the fuel tank f with a locking groove g and a plurality of seat rail reinforcements h ₁ , h ₂ and h ₃ . None by inserting it into the locking groove i provided in the front seat rail reinforcement h ₁ located in front of the seat rail j and fixing it to the fixing brackets k, k installed upright on the left and right rear parts of the seat rail j by bolts or welding. Was there.

By the way, reduction of the number of parts and the number of assembling steps has also been demanded in the structure for mounting the motorcycle seat on the vehicle body. Therefore, the inventor of the present invention has shown in FIGS.
In addition to the front seat rail reinforcing material h ₁ in which the locking groove i is formed, the seat rail j has other seat rail reinforcing materials h ₂ and h ₃ as shown in FIG. Since the material h ₁ is on the base end (front) side of the seat rail j fixed to the main frame 1 which is robust in the frame b, the material h ₁ of the seat a does not need to use the front seat rail reinforcement material h ₁ . I thought that it could be installed stably.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art. The problem to be solved is to stabilize the seat even when the front seat rail reinforcement is removed. Another object of the present invention is to provide a mounting structure for a motorcycle seat, which is capable of performing the above-mentioned mounting and reducing the number of parts and the number of assembling steps.

[0005]

The structure for mounting a motorcycle seat according to the present invention solves the above problems and is as follows. That is, the mounting structure for a motorcycle seat of the present invention is a structure for mounting the motorcycle seat on a seat rail, which is connected to a main frame extending rearward from a head pipe, and on which the motorcycle seat is mounted. Is formed of a pipe body consisting of a front part extending toward the rear from the left and right sides of the main frame toward the rear and a middle rear part wider than the front part, and the motorcycle seat has a front part and a central part. A front locking bracket, a central locking bracket and a rear bracket are formed on the rear side and the rear side, respectively. Of these brackets, the front locking bracket and the central locking bracket are locking grooves provided in the fuel tank, respectively. Also, the rear bracket is locked to the front part of the seat rail, and the rear bracket is fixed to the seat rail rear right and left. Is obtained so as to be fixed to the socket.

[0006]

Therefore, according to the motorcycle seat mounting structure of the present invention, since the central engaging bracket is engaged with the front portion extending toward the rear from the left and right sides of the main frame, the central engaging bracket of the prior art is engaged. Eliminates the front seat rail reinforcement that was required to attach the stop bracket to the seat rail.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A mounting structure for a motorcycle seat according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is an overall side view showing a case where a motorcycle seat mounting structure 1 of the present invention is incorporated into a motorcycle, FIG. 2 is a plan view of a main portion of FIG. 1, and FIG. .

The structure 1 for mounting a motorcycle seat on a vehicle body according to the present invention is applied to, for example, an off-road motorcycle 2 which runs on rough terrain or other rough terrain. A motorcycle seat mounting structure 1 includes a seat rail 5 on which a motorcycle seat 4 is mounted on a body frame 3 of an off-road motorcycle 2.
Is a mounting structure for fixing and mounting the motorcycle seat 4.

The body frame 3 includes a head pipe 6 for supporting a front fork (not shown), a tank rail 8 as a main frame extending obliquely rearward and downward from the upper center of the head pipe 6, and on which a fuel tank 7 is mounted. The head pipe 6 extends rearward and downward from the vicinity of the portion to which the tank rail 8 is connected, and the rear end 9a is joined to the rear end portion 8a of the tank rail 8 by an appropriate fixing means such as welding or the like, and is substantially L-shaped in side view. The down tube 9 having the above-mentioned shape, the rear end 9a of the down tube 9 and the rear end 8 of the tank rail 8.
The seat rail 5 is connected to the tank rail 8 at a position higher than the position where the seat rail 5 is connected to a, and the seat rail 5 is arranged between the position near the rear part of the seat rail 5 and the rear part of the down tube 9. Support rail 10l ・ 1 to support
0r (only the left support rail 10l is shown in FIG. 1).

The seat rail 5 is formed of a pipe body. That is, the seat rail 5 is composed of the left pipe 12l, the right pipe 12r, and the reinforcement pipe 1 that connects them to the rear thereof.
3 ₁ and a seat mounting bracket 13 ₂ which also functions as a reinforcing pipe. In other words, the left pipe 12l
The right pipe 12r and the right pipe 12r are line-symmetrical with respect to the median plane S, and the pipes 12l and 12r extend from the left and right side faces of the tank rail 8 so as to be spaced apart rearward and leftward. 12l ₁ .12r ₁ and rear pipe parts 12l ₂ 12r ₂ that extend straight rearward integrally with the front pipe parts 12l ₁ 12r ₁ . Rear pipe part 12l
Each rear end portion and each central portion of ₂ · 12r ₂ are connected by a reinforcing pipe 13 ₁ and a seat mounting bracket 13 ₂ , respectively, and the left pipe 12l and the right pipe 12r are integrated to form a seat rail 5. . Since the seat rail 5 is configured as described above, the front portion 14 having a shape that extends rearward in a divergent manner as a whole,
The front part 14 is wider than the front part 14 and is reinforced by the reinforcing pipe 13 ₁ and the seat mounting bracket 13 ₂ interposed therebetween.

On the other hand, the motorcycle seat 4 is formed with a front engaging bracket 18, a central engaging bracket 20 and a rear bracket 22 on the front, central and rear sides thereof, respectively.

Each of these brackets 18, 20 and 22
Among them, the front locking bracket 18 and the central locking bracket 20 are the locking grooves 24 provided in the fuel tank 7, respectively.
Also, the rear bracket 22 is locked to the front portion 14 of the seat rail 5, and the rear bracket 22 is fixed to the fixing brackets 26, 26 provided upright from the left and right rear portions of the seat rail 5 through appropriate fixing means such as screwing or welding. It is like this.

The central locking bracket 20 is composed of a left pipe bracket piece 20l and a right pipe bracket piece 20r provided on the left pipe 12l and the right pipe 12r of the seat rail 5, respectively. Two
The length dimension l ₁ from 0l to 20r is narrower than the interval l ₂ between each rear pipe portion 12l ₂ and 12r ₂ between the left pipe 12l and the right pipe 12r, but the front pipe portion 12l.
It is wider than the interval l ₃ between ₁ · 12r ₁ .

Therefore, according to the motorcycle seat mounting structure 1 having such a configuration, the central portion locking bracket 20 includes the left pipe 12l and the right pipe 1 of the seat rail 5.
Left pipe bracket piece 2 provided on each of 2r and 2r
0l and the right pipe bracket piece 20r, and the length dimension l of both bracket pieces 20l and 20r from one end to the other
₁ is narrower than the interval l ₂ between the rear pipe parts 12l ₂ and 12r ₂ of the left pipe 12l and the right pipe 12r, but wider than the interval l ₃ between the front pipe parts 12l ₁ and 12r _1. As it has become, the body frame 3 of the motorcycle seat 4
The attachment to the is done as follows.

That is, the rear pipe portion 12l ₂ of the rear portion 16
Central locking bracket 20 to the interval l ₂ between 12r ₂ and
And push the seat 4 forward as it is. By doing so, the central locking bracket 20 is provided between the front pipe portions 12l ₁ and 12r ₁ of the front portion 14 at the interval l ₃ narrower than the length dimension l _{1 of the} bracket pieces 20l and 20r. After that, the bracket piece 20l and the bracket piece 20r of the central locking bracket 20 are
It comes to be locked to the front part 14 of the seat rail 5,
The central locking bracket 20 is connected to the seat rail 5.

Since the central locking bracket 20 is connected to the seat rail 5 in this manner, not only can the stable mounting of the seat 4 be ensured, but it is necessary to mount the central locking bracket to the seat rail in the prior art. The seat rail reinforcements that were used to be that much unnecessary. Therefore, as the number of parts is reduced, the number of assembling steps can be reduced and the cost can be reduced.

[0017]

The seat can be stably attached, and the number of parts and the number of assembling steps can be reduced.

[Brief description of drawings]

FIG. 1 is an overall side view showing a case where a motorcycle seat mounting structure 1 of the present invention is incorporated in a motorcycle.

FIG. 2 is a plan view of an essential part of FIG.

3 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 4 is a side view showing a state where a conventional motorcycle seat mounting structure is adopted in a vehicle body frame.

5 is a plan view of an essential part of FIG. 4. FIG.

[Explanation of symbols]

 1 Motorcycle Seat Mounting Structure 4 Motorcycle Seat 5 Seat Rail 6 Head Pipe 7 Fuel Tank 8 Main Frame 14 Front 16 Rear 16 Back Lock Bracket 20 Center Lock Bracket 22 Rear Bracket 24 Lock Groove 26 Lock Bracket

Claims (1)

[Claims] 1. A structure for attaching the motorcycle seat to a seat rail, which is connected to a main frame extending rearward from a head pipe and on which a motorcycle seat is mounted, wherein the seat rail is provided on the left and right sides of the main frame. It is formed of a pipe body consisting of a front part extending from both sides toward the rear toward the end and a middle rear part wider than this front part, and the motorcycle seat has a front part on the front side, a center part and a rear part respectively. A locking bracket, a central locking bracket, and a rear bracket are formed. Among these brackets, the front locking bracket and the central locking bracket are a locking groove provided in the fuel tank and a front portion of the seat rail, respectively. The rear bracket is fixed to the fixed brackets installed upright from the left and right of the rear portion of the seat rail. Motorcycle seat mounting structure.