JPH072187U - Mud removal mounting structure for motorcycles with suspension forks - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a mud-removal mounting structure that can be easily implemented in a motorcycle having a suspension fork without impairing the strength of the fork. A connecting fitting having a right-angled cross-section whose one right-angled surface is in contact with and fixed to the tip of the sludge is provided, and the other right-sided surface of the connecting fitting is brought into contact with the lower end of the central crown portion of the suspension fork, and the suspension fork is also provided. A fork stem is slidably inserted into the fork stem and an upper piece having a bolt and a screw engaging with the bolt and a lower piece for slidably inserting the bolt are provided. A mud removal fixing structure for a two-wheeled vehicle having a suspension fork configured to fix the fixing bracket and the mud removal by rotating the bolt penetrating the other surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mud-removal mounting structure for a motorcycle having a suspension fork.

[0002]

[Prior art]

 In a conventional bicycle, the shaft of the front wheel is fixed to the front fork, and the structure of the front fork is that the stem part and the fork part are integrally formed, and a hole is to be made in the crown part of the fork. Since there is no structural problem, the mud removal could be easily attached via the shaft piece inserted into the hole.

[0003]

[Problems to be solved by the device]

 However, in motorcycles with suspension forks such as mountain bikes that have recently become popular, there is a hydraulic or sprinkling elastic expansion / contraction section between the fork crown and fork, and the front wheels move relative to the crown. In addition, the crown portion made of aluminum alloy has a structure in which it is cast and fixed to the lower portion of the stem portion made of steel pipe, and it is problematic in terms of strength to make a hole in the cast and fixed portion. Therefore, it was supposed that mud removal cannot be used on motorcycles with sustain forks.

An object of the present invention is to solve this problem and to provide a mounting structure that can be used for removing dirt in a motorcycle having a suspension fork.

[0005]

[Means for Solving the Problems]

 A two-wheeled vehicle mud-removal mounting structure having a suspension fork of the present invention has the following structure as a means for achieving the above object.

(1) A connecting fitting having a right-angled cross-section whose one right-angled surface is in contact with and fixed to the tip of the mud is provided, and the other right-handed surface of the connecting fitting is brought into contact with the lower end of the central crown portion of the suspension fork, and A fixing metal fitting is provided in the fork stem of the suspension fork so as to be slidably inserted, and an upper piece having a bolt and a screw engaging with the bolt and a lower piece that slidably inserts the bolt. Fix the fixing metal fittings and mud remover by rotating the bolts that penetrate the other surface of the metal fittings at right angles.

(2) The fixing bracket has a downward-reducing mortar-shaped upper piece having a screw engaging with a bolt and a cylindrical lower piece having a slit through which the bolt is slidably inserted. The inner surface of the lower piece is fitted into contact with the outer surface of the upper piece by the rotation of, and is expanded and deformed in the fork stem.

(3) An upper piece having a bottom surface that is inclined and has a screw that engages with the bolt, and a cylindrical lower piece that has a slanted top surface and slidably inserts the bolt. The lower piece, which comes into contact with the upper piece on the inclined surface by the rotation of the bolt, is displaced from the axial center in the fork stem and moves outward.

[0009]

【Example】

 FIG. 1 shows a suspension fork according to an embodiment of the present invention. A is a front view and B is a side view. FIG. 2 is also an enlarged cross-sectional view of the main part in FIG. 1B. 3A and 3B are perspective views showing two examples of the fixing fitting of the present invention, and FIG. 4 is a perspective view showing an example of the connecting fitting of the present invention.

In the figure, 1 is mud removal, 2 is a connecting fitting, 3 is a suspension fork, and 4 is a fixed metal fitting. At the front end of the mud removing device 1, a right-angled surface 2a of a connecting fitting 2 having a right-angled cross section is bolted. The other surface 2b at a right angle is brought into contact with the lower end of the central crown portion 3a of the suspension fork 3 as shown in FIG. The central crown portion 3a is manufactured by casting a crown portion made of an aluminum alloy into the lower portion of a stem made of steel pipe, and the boot 3b prevents dust and water from entering the inside. FIG. 3A is a perspective view showing an example of the fixing member 4, which includes a bolt 4a, a die-shaped upper piece 4b which is screw-engaged with the bolt 4a, and a slit-like cylindrical shape which allows the bolt 4a to be slidably inserted into the lower end. It is composed of a lower piece 4c having a protrusion 4d. The fixing bracket 4 is slidably inserted into the fork stem 3c, and the bolt 4a is rotated by rotating the bolt 4a while the protrusion 4d is engaged with the hole 2d on the other surface 2b at a right angle. When it is removed, the lower piece 4c that fits with this is expanded and deformed and fixed in contact with the inner surface of the fork stem 3c, whereby the suspension fork 3 is fixed through the fixing metal fitting 4 and the connecting metal fitting 2 to remove dirt. 1 is fixed.

FIG. 3B shows another embodiment of the fixing member 4, which has an upper piece 4b ′ having a lower surface inclined shape that engages with the bolt 4a and a lower piece 4c ′ having a cylindrical shape having an upper surface inclination. When the upper piece 4b 'is lowered, the lower piece 4c' is moved eccentrically from the axis along the connecting inclined surface to the outer side and fixed in contact with the inner surface of the fork stem 3c. .

[0012]

[Effect of device]

 The effects of the present invention are as follows.

(1) Since the fork crown portion is not provided with a through hole for the mud-removing mounting shaft, the strength of the suspension fork is not impaired.

(2) Since the mud removing attachment portion is not exposed, the appearance is smart.

(3) The structure is simple and easy to handle.

[Brief description of drawings]

FIG. 1A is a front view showing an example of the present invention.

FIG. 1B is a side view showing an embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of FIG. 1B.

FIG. 3A is a perspective view showing an example of a fixture.

FIG. 3B is a perspective view showing another example of the fixing bracket.

FIG. 4 is a perspective view showing an example of a connection fitting.

[Explanation of symbols]

 1 Mud removal 2 Connection fitting 3 Suspension fork 4 Fixing fitting 2a Right-angled surface 2b Right-angled other surface 2c Central hole 2d Hole 3a Central crown 3b Boot 3c Fork stem 4a Bolt 4b Upper piece 4c Lower piece 4d Projection 4b ' Piece 4c 'Lower piece

Claims (3)

[Scope of utility model registration request] 1. A connection fitting having a right-angled cross-section whose one right-angled surface is in contact with and fixed to the tip of the mud is provided, and the other right-handed surface of the connection fitting is brought into contact with the lower end of the central crown portion of the suspension fork, and A fixing metal fitting is provided in the fork stem of the suspension fork so as to be slidably inserted, and an upper piece having a bolt and a screw engaging with the bolt and a lower piece that slidably inserts the bolt. A mud-removal mounting structure for a motorcycle having a suspension fork, wherein the fixing bracket and the mud-removal are fixed by rotating the bolt that penetrates the other surface at a right angle. 2. The fixture includes a downwardly-reduced, mortar-shaped upper piece having a screw for engaging a bolt and a cylindrical lower piece having a slit through which the bolt is slidably inserted. The suspension fork according to claim 1, wherein the inner surface of the lower piece is fitted into contact with the outer surface of the upper piece by the rotation so as to be expanded and deformed in the fork stem. Two-wheeled vehicle mud removal mounting structure. 3. An upper piece having a bottom surface that is inclined and has a screw that engages with a bolt, and a lower piece having a cylindrical shape and an upper surface that is slidably inserted through the bolt. However, the lower piece, which comes into contact with the upper piece on the inclined surface by the rotation of the bolt, is displaced from the axial center in the fork stem to move outward. A mud-removing mounting structure for a two-wheeled vehicle having the suspension fork according to claim 1.