JPS5927339Y2 - motorcycle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a motorcycle in which a step holder extending rearward is fixed to a hanging portion of a body frame that is approximately T-shaped when viewed from the side.

The step holder is provided with a pillion step at its rear end to support the weight of the rear seat occupant.

Therefore, although a large bending moment acts on the step holder, conventionally it is fixed to the vehicle body in a cantilevered manner, so it must have sufficient bending rigidity by itself, and the step holder is inevitably As a result, the weight of the holder increases.

The present invention has been proposed in view of the above, in which the rear end of the step holder and the rear part of the horizontal part of the vehicle body frame are connected to each other via a reinforcing member, and the rear end of the step holder is attached to the rear end of the step holder by a rear seat passenger. It is an object of the present invention to make the step holder sufficient to withstand use even if the bending rigidity of the step holder itself is reduced by mainly burdening the reinforcing member, thereby reducing the weight of the entire step holder.

Hereinafter, embodiments of the present invention will be explained with reference to the drawings.
As shown in Fig. 1, the body frame B of the motorcycle is composed of a horizontal part Ba extending in the front-rear direction and a hanging part Bb extending downward from approximately the center thereof, and is approximately T-shaped when viewed from the side. .

A head pipe 1 is fixed to the front end of the horizontal portion BaO, and a front fork Ff supporting a front wheel Wf is connected to the head pipe 1 so as to be steerable.

On the horizontal part Ba, a fuel tank Ti- and a tandem seat S are sequentially attached from the front, and an engine E is mounted from the front end of the folded horizontal part Ba to the lower end of the hanging part Bb.

Further, the front end of the straddle fork Fr is pivoted to the lower end of the hanging portion Bb via a pivot 2 so as to be vertically swingable, and the engine E
The rear wheel Wr, which is driven via the chain 73, is pivotally supported by the rear end of the fork.

At the middle part of the rear fork Fr, the rear end of the link 4 bent into a bell crank shape is attached, and at the hanging part Bb below the rear fork Fr, the front end of the tension rod 5 is attached to pivot supports 6, 7, which can freely swing up and down. At the same time, the rear end of the tension rod 5 and the bent portion of the link 4 are connected via the pivot 8.

A single shock absorber 9 with a suspension spring is interposed between the rear end of the link 4 and the vehicle body frame 3, and is disposed between the pair of left and right legs of the rear fork Fr.

Therefore, when an upward load is applied to the rear wheel Wr and the rear fork Fr swings upward, the tension rod 5 swings upward via the link 4, and the shock absorber 9 is compressed accordingly. The load is supported by the shock absorber 9 in a damping manner.

Further, a step holder 10 extending rearward is fixed to the lower end of the hanging part Bb by poles Nl, 11, and a main step 12 for the operator is attached to the base of the step holder 10, and a pillion for the rear seat passengers is attached to the tip of the step holder 10. A step 13 is attached to each step.

Both ends of a reinforcing member 14 in the form of a rond are fixed to the tip of the step holder 13 and the rear part of the horizontal portion Ba by bolts 15 and 16, respectively.

At this time, in the illustrated example, the lower bolt 16 also serves as a mounting bolt for the pillion step 13.

The tip of the step holder 10 is connected to the rear part of the horizontal portion Ba of the vehicle body frame B via the reinforcing member 14, and the weight of the rear seat occupant applied to the pillion step 13 is mainly supported by the tensile force of the reinforcing member 14. As a result, the load on the step holder 10 is significantly reduced.

FIG. 2 shows a modification of the rond-shaped reinforcing member 14, in which the intermediate portion of the reinforcing member 14 is bent rearward.

In this way, the upper half of the reinforcing member 14 (D) can be conveniently used as a grip when the main stand is raised.

As described above, according to the present invention, the step holder 10 extending rearward is fixed to the hanging part Bb of the body frame B, and the rear end of the step holder 10 and the rear part of the horizontal part Ba of the body frame B are connected to the motorcycle. are connected to each other via the reinforcing member 14, so that the load applied to the step holder by the occupant is mainly borne by the reinforcing member, so that the load burden on the step holder 10 can be significantly reduced. Even if the bending rigidity of the step holder 10 itself is reduced, it can withstand use sufficiently and contribute to the overall weight reduction.In addition, the horizontal part B of the vehicle body frame B is
This achieves effects such as being able to also reinforce a.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of the motorcycle of the present invention, and FIG. 2 is a side view of only the rear portion of the motorcycle showing a modified example of a reinforcing member that can be buttoned thereon. B...Vehicle frame, Ba...Horizontal part, Bb...
Drooping part, 10... Step holder, 14... Reinforcing member.

Claims (1)

[Scope of utility model registration request] Drooping part B of the vehicle body frame B, which is approximately T-shaped when viewed from the side.
A motorcycle in which a step holder 10 extending rearward is fixed to a rear end of the step holder 10, and the rear end of the step holder 10 and the rear part of the horizontal portion Ba of the vehicle body frame B are connected via a reinforcing member 14.