JPS6243919Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a structure for fixing a lower spring receiver stopper of a single suspension suspended between a swing arm that is swingably supported on a rear wheel axle and a lower body frame and an upper body frame. This invention relates to a structure for fixing a spring receiving stopper that also serves as a connecting member to a cylinder.

When fixing the spring retainer stopper to the cylinder,
Conventionally, the cylinder and stopper were formed integrally, making machining extremely difficult.

The object of the present invention is to construct a cylinder and a spring receiving stopper that also serves as a lower mounting member separately, and by tightening and fixing the stopper fitted to the cylinder to the cylinder via a fixing member, the spring receiving stopper is easy to process and assemble. The purpose is to provide a fixed structure.

Embodiments of the present invention will be described below based on the drawings.

In Fig. 1, reference numeral 1 denotes a rear end (not shown) which rotatably supports the rear wheel shaft of a two-wheeled vehicle, and a connecting hole 1 at the front end.
2 is a single suspension suspended between the swing arm 1 and the upper frame of the vehicle body, and 2 is a lower spring receiving stopper 3 which also serves as a connecting member. is fixed to the middle of the swing arm 1 with a bolt 4, and the upper mount base 5 is connected to the upper vehicle body frame.

In the single suspension 2, for example, as shown in Fig. 2, a piston 7 fixed to one end of a piston rod 6 is slidably fitted into a cylinder 8 filled with hydraulic oil, and an upper spring of the piston rod 6 is pulled out of the cylinder. A coil spring 10 is stretched between the receiving stopper 9 and the lower spring receiving stopper 3 fixed to the cylinder 8, and a damping force generating mechanism provided on the piston 7 buffers the impact from the road surface applied to the rear wheel. ing.

The present invention relates to a means for fixing a lower spring receiver stopper, which also serves as a connecting member to the swing arm, to the cylinder body in this type of single suspension.As shown in FIGS. 2 and 3, the cylinder 8 is An annular protrusion 12 with one or more notches 11 formed on its lower outer periphery is integrally formed, and a screw 13 is provided on its upper outer periphery. cylinder 8
A cylindrical lower spring receiving stopper 3, which also serves as a connecting member to the swing arm 1, is fitted on the outside of the swing arm 1. This spring receiver stopper 3 has a connecting hole 3b to the swing arm in the upper part of the cylinder 3a, and a protrusion 3d corresponding to the notch 11 formed in the annular protrusion 12 of the cylinder below the lower base 3c.
are integrally formed, and the notch 11 of the annular projection 12
The projections 3d are meshed and engaged with each other in a telescopic manner to lock the rotation of the cylinder 8 and the spring receiver stopper 3. Cylindrical body 3a of spring receiver stopper 3
An annular fixing member 14 having an internal thread is fitted between the cylinder 8 and the cylinder 8, and is screwed into the external thread 13 formed on the outer periphery of the cylinder 8 to secure the spring receiver stopper 3.
The base 3c is fastened to the annular projection 12, thereby firmly fixing the stopper 3 to the cylinder 8.

Incidentally, as shown in the figure, an appropriate number (four in the figure) of opening windows 3e cut out from the vertical direction may be provided in the lower part of the cylindrical body 3a, and a rotation notch 15 may be formed on the outer periphery of the annular fixing member 14. . With this structure, a part of the fixing member 14 is exposed to the opening window 3e, so that the fixing member 14 can be rotated and tightened from the outside of the stopper cylinder 3a using an appropriate tool.

Thus, the coil spring 1 is attached to the upper surface of the fixing member 14.
The lower end of the swing arm 0 is supported via the seat 16, and the connecting hole 3a is connected to the swing arm 1.

As described above, in the present invention, the cylinder, the spring receiver stopper, and the fixing member are each formed separately, making processing extremely easy. In addition, since the spring receiver stopper also serves as a connecting member to the swing arm, the assembly process can be saved, and since the connecting hole is provided in a cylindrical body separate from the cylinder, a stopper with a different cylindrical length can be selected. By doing so, it can be commonly used for two-wheeled vehicles with different distances between the swing arm and the upper body frame.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the single suspension, FIG. 2 is a longitudinal sectional view of FIG. 1, and FIG. 3 is an enlarged partial sectional view showing the main parts of the present invention. 1...Swing arm, 2...Single suspension, 3...Lower spring receiver stopper, 3a...
... Cylindrical body, 3b... Connection hole, 3c... Lower base,
3d...Protrusion, 3e...Opening window, 5...Mount base, 8...Cylinder, 10...Coil spring,
12...Annular projection, 14...Fixing member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A lower spring receiver stopper, which also serves as a mounting member, has a connecting hole to the swing arm in the upper part of the cylinder and a protrusion at the lower end of the lower base, and is externally fitted to the single suspension cylinder. , the protrusion of the spring receiver stopper is meshed and engaged with the notch of the annular protrusion integrally formed on the outer periphery of the cylinder,
A single member characterized in that an annular internal screw fixing member fitted between the cylindrical body of the spring receiver stopper and the cylinder is screwed into a threaded portion formed on the outer periphery of the cylinder, and the base of the spring receiver stopper is fixed with the fixing member. Suspension lower spring receiver stopper fixing structure. (2) The spring receiver stopper according to claim 1, which is characterized in that an opening window is formed in the lower part of the cylindrical body of the spring receiver stopper, and a notch for rotation is formed in the outer periphery of the internal screw fixing member. Fixed structure.