JP2009208754A - Auxiliary hardware for assembling valve part of wheel of bicycle or wheel chair or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve an problem where conventionally, when assembling the wheel of a bicycle or a wheel chair, a belt of a rim groove width for preventing puncture is installed into the rim groove, belt terminals are overlapped on a valve hole of a rim, the valve holes provided on both ends of the belt are aligned, and fixed through a valve hardware of a tire tube, and therefore the technique is required for assembling, when the tire tube is depressurized or punctured, a valve stopping nut is loosened and the torsion is caused to a puncture prevention belt due to the inclination of the valve and breakage accident is easily caused. <P>SOLUTION: The assembly of the wheel or detaching/attaching of the tire tube in repairing the puncture is facilitated with a metal fitting equipped with a belt presser-cum-rotation stopping flange on one end of a valve guide cylinder for passing through the valve hole of the overlapped part of both the ends of the belt for preventing the puncture used from the inside to the valve hole of the rim of the wheel of the bicycle or the wheel chair, and an auxiliary hardware for assembling the valve part is used as a valve guiding metal fitting characterized in that the torsion of the puncture prevention belt or the inclination of the valve in the puncture or the breakage of the valve hole of the belt in detaching/attaching is prevented. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to assembly of a valve mounting portion of a wheel rim and a tire tube, such as a general bicycle or a wheelchair, and a subsidy for security.

  Conventionally, wheels of general bicycles and wheelchairs are basically composed of a central shaft, bearings, hubs, spokes, rims, tire tubes, and outer tires. The rim has many spoke attachment holes and one tire tube valve extraction hole. It has been.

  Conventionally, when assembling the wheel, a little air was put inside the outer tire, the valve was passed through the valve outlet hole of the rim, and the outer tire and the tire tube were assembled to the rim.

  In the above assembly, the groove part of the rim where the tire tube is in direct contact with the head of the nospoke adjusting screw is lined up and causes puncture, so the rubber belt of the rim groove width makes one round in the rim groove. Valve holes are provided at both ends, superimposed on the valve holes of the rim, and assembled through the valves.

  In the conventional bicycle and wheelchair wheels described above, it is difficult to assemble the rim and the valve hole of the tire, tire tube, and anti-puncture belt, and skill is required.

  Also, belt twisting or breaking accidents due to the inclination of the valve were likely to occur due to a decrease in the internal pressure of the tire tube or loosening of the valve set screw due to puncture.

  An object of the present invention is to prevent the occurrence of an accident and facilitate assembly by adding one part to such a conventional configuration.

  In order to achieve the above object, the present invention makes the length of the thin cylindrical valve guide (1) suitable for the outer diameter of the valve more than twice the thickness of the anti-puncture belt (3), and prevents rotation at one end. It is an assembly auxiliary hardware as a valve guide metal (1.2) provided with a band pressing flange (2) having a rim groove width which also serves as a rim groove.

When assembling the rim (4) and the tire and tire tube (5), the puncture prevention belt (3) is first wound around the rim groove, and the valve hole of the end is overlapped with the valve hole of the rim (4), and the valve guide described above. Pass the hardware (1.2) through the valve hole, fix the anti-puncture belt (3) to the rim (4), and then connect the valve (6) of the tire tube (5) to the guide hole of the valve guide hardware (1.2). The tire tube (5) is pressure adjusted, and the valve (6) is fixed to the rim (4) with the valve retaining nut (7) to complete the tying of the wheel.

  As described above, the assembly of the wheels of a general bicycle or wheelchair is facilitated, and the tire tube (5) can be easily attached and detached during puncture repair or the like.

  When the tire tube (5) is depressurized or punctured, it is possible to prevent the bank prevention belt (3) from being twisted or broken due to the looseness of the valve retaining nut (7) or the inclination of the valve (6).

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  In the figure, reference numeral 1 denotes a valve guide cylinder of an assembly auxiliary metal for the valve portion of the present invention, and 2 denotes a belt holding flange which also serves as a detent for the assembly auxiliary metal of the present invention.

  3 is an anti-puncture belt, 4 is a rim, 5 is a tire tube, 6 valves, and 7 is a valve locking nut.

It is a top view of the assembly auxiliary | assistant hardware (1.2) mounting state of an Example of this invention. It is sectional assembly explanatory drawing of the valve hole part of this invention Example rim (4).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Anti-rotation and belt holding flange 2 Valve guide part 3 Puncture prevention belt 4 Rim 5 Tire tube 6 Valve 7 Valve stop nut

Claims (1)

  From the inside of the wheel rim of a bicycle or wheelchair, the length of the valve guide cylinder used for the valve hole of the rim is slightly more than twice the thickness of the anti-puncture belt, and one end is used as a belt presser and detent to prevent the rim groove Valve guide hardware with a wide flange makes it easy to detach and attach the tire tube during wheel assembly or puncture repair, as well as to twist the puncture-preventing belt and to tilt and detach the valve during decompression and puncture. An assembly hardware for a valve part of a wheel of a bicycle or a wheelchair characterized by preventing breakage of the anti-puncture belt.

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