JPH0437034Y2 - - Google Patents

Description

[Detailed description of the invention] The invention includes a cylinder that is attached to the rear frame, and a rod that passes through the cylinder and is attached to the front frame pipe.
This invention relates to a mounting device for a swing damper of a type of two-wheeled or three-wheeled vehicle in which the rod projections on both sides of the cylinder are protected by studs or loose boots.

Generally, in order to suppress the inclination of the front frame with the seat when a two-wheeled vehicle or three-wheeled vehicle drives around a curve, a swing damper is installed by attaching both ends of the rod to the front frame pipe and a cylinder to the rear frame side. has been done. Conventionally, a cylindrical body was fixed to both end faces of the swing damper rod with screws so that its axes were perpendicular to each other, this cylindrical body was supported by a mounting bracket, and this mounting bracket was fixed to the front frame pipe. . In this way, the horizontal inclination of the rod is absorbed by supporting the cylindrical body with the axis perpendicular to the rod axis with the bracket, but this also reduces the distance between the cylindrical bodies at both ends of the rod. That is, since the distance between the centers of the mounting brackets at both ends of the rod is determined, it is necessary to make the mounting holes of the brackets elongated to absorb positional deviations in the axial direction of the rod during mounting.

An object of the present invention is to provide a swing damper mounting device for a two-wheeled vehicle or three-wheeled vehicle that simultaneously compensates for both the horizontal inclination of the swing damper rod and the displacement of the bracket mounting center at both ends of the rod in the axial direction of the rod. It is.

In order to achieve the above object, according to the present invention, a thick flange-like part is provided at the outer end of each boot made of an elastic body integrally with the ribs, and the outer end of each boot is attached to both ends of the rod. 2. Insert the parts together with the rod ends into the holes in the upright walls of each mounting bracket to be attached to the front frame pipes on both sides so that the flange-like thickened part is adjacent to the outer surface of each upright wall, and A washer may be inserted into each rod end portion protruding outward from the flange-like thickened portion, the flange-like thickened portion may be sandwiched between the washer and the upright wall, and the washer may be fixed to each rod end portion.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings.

Figure 3 shows an overall view of a tricycle equipped with a swing damper. 1 is the front wheel, 2 is the handle, 3 is the front frame, 4 is the front frame pipe integrated with the front frame 3, 5 is the seat, 6 is the rear frame, 7 is the rear wheel, 8 is the left-right swing damper, 9 is the vertical direction A swing arm, 10 is a front cushion, 11 is a rear cushion, and 12 is an engine. A front frame pipe 4 integral with the front frame 3 is connected to a rear frame 6 via a universal joint.

Figure 4 shows front frame pipes 4, 4'
and an exploded arrangement perspective view of the swing damper 8 attached to this.

As will be described later with reference to FIG. 1, a rod 14 passing through the cylinder 13 of the swing damper 8 is supported at both ends by mounting brackets 15, 15'.
These mounting brackets are attached to protrusions 4a, 4a and 4a, respectively, which are fixed to the front frame pipes 4 and 4'.
4a' with bolts. On the other hand, a stay 16 extending in the radial direction is fixed to the cylinder 13, and a shaft portion 19 protruding perpendicularly from a ball joint 18 at one end of the link arm 17 is inserted into a hole in the stay and fixed with a nut 20. be done. On the other hand, the hole at the other end of the link arm 17 is
It is passed through a threaded portion 22 of a mounting bracket 21 fixed to the rear frame 6 and fixed with a nut 23. Therefore, when driving around a curve, etc., the front frame 3 and front frame pipes 4, 4'
For example, when the rod 14 is tilted to the left, the rod 14 having the piston 26 (see FIG. 1) moves to the left relative to the cylinder 13 attached to the rear frame 6.
Therefore, when the piston moves, oil flows through the orifice 25, and the resistance generated at this time generates a damping force to suppress the tilting of the front frame.

Next, a swing damper and its mounting device according to the present invention will be explained with reference to FIGS. 1 and 2.

In FIG. 1, the swing damper 8 consists of a cylinder 13 and a rod 14 that passes through the cylinder 13 while being guided by rod guides 24 and 24' fixed to both ends of the cylinder. , a piston 26 having an orifice 25 is fixed. An outer cylinder 27 is attached to the outside of both rod guides 24, 24' and covers the cylinder 13. cylinder 1
The rods 14 projecting from both sides of the rod 3 are protected by rubber boots 28, 28'. According to the present invention, thick flange-like parts 29, 29' are provided at the outer ends of the boots 28, 28' made of an elastic body, integrally with the ribs.
The outer ends of the boots 28, 28' attached to both ends of the frame pipes 4, 4, together with the rod ends of the upright walls 15a, 15a' of the respective mounting brackets 15, 15' attached to the front frame pipes 4, 4' on both sides. inserted into the holes respectively, and arranged so that the flange-like thick parts 29, 29' are adjacent to the outer surface of each upright wall,
Furthermore, washers 30, 3 are attached to the ends of each rod 14 projecting outward from the flange-like thickened portions 29, 29'.
0' and the washers and upright walls 15a, 15
Sandwiching the flange-like thick parts 29, 29' between a',
By caulking the ends of each rod, the washer 3
0.30' to the rod end.

In this invention, since the rod of the swing damper is mounted with the mounting bracket through the thick rubber part, it is possible to absorb horizontal tilting of the rod when installing the swing damper, and
It is also possible to compensate for misalignment of the mounting center of the brackets on both sides of the rod, improving the degree of freedom in mounting between the vehicle body and the swing damper. Furthermore, the axial force applied to the rod when operating the swing damper on a curve can be reduced by the thick rubber portion of the boot, improving operability. moreover,
Since the thick flange-like part is integrally provided at the tip of the boot, parts for positioning the boot are not required, and costs can be reduced.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a swing damper assembly having a swing damper mounting device according to the present invention;
Fig. 2 is a side view of the mounting device shown in Fig. 1 viewed from the direction of the arrow in Fig. 1, Fig. 3 is an overall view of a tricycle having a swing damper according to the present invention, and Fig. 4 is a swing damper and its mounting device. FIG. 4, 4'...Front frame pipe, 6...
Rear frame, 13...Cylinder, 14...Rod, 15...Mounting bracket, 28, 28'...
Boots, 29, 29'... Thick part, 30, 30'...
...Watsiya.

Claims (1)

[Scope of utility model registration request] A two-wheeled or three-wheeled vehicle that has a cylinder that is attached to the rear frame, and a rod that passes through the cylinder and is attached to the front frame pipe, and the protruding parts of the rod on both sides are protected by spikes or loose boots. In the swing damper mounting device, each boot 28, 28' made of an elastic body is provided with a thick flange-like part 29, 29' integrally with a spring at the outer end thereof, and each boot is attached to both ends of the rod 14. Insert the outer ends of the rods 28, 28' together with the rod ends into the holes in the upright walls 15a, 15a' of the respective mounting brackets 15, 15' attached to the front frame pipes 4, 4' on both sides, respectively. The thickened flanges 29, 29' are arranged adjacent to the outer surface of the wall, and washers 30, 30' are inserted into the ends of the rods projecting outward from the thickened flanges. A swing damper mounting device characterized in that a thick flange-like part is sandwiched between upright walls 15, 15', and a washer is fixed to each rod end.