Hub generator for bicycle

A hub generator and bicycle technology, applied to bicycle accessories, synchronous motors with stationary armatures and rotating magnets, optical signals, etc., can solve problems such as unreliable grounding, inability to supply power to front lights, and loose nuts

Active Publication Date: 2004-10-06
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in this case where the toothed washer is used to ground the frame of the bicycle, the nuts for mounting the hub shell are not tightened tightly, and if the frame is painted thicker, even if the nut washer is tightened, the frame cannot be punctured. As a result, there is a problem that it cannot be grounded reliably and cannot supply power to the headlights

Method used

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  • Hub generator for bicycle
  • Hub generator for bicycle
  • Hub generator for bicycle

Examples

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Embodiment Construction

[0029] Figure 1 to Figure 5 The examples of the present invention are shown, and the following description will be made based on these drawings.

[0030] 1 is a front fork of a bicycle, on which a headlight 3 is mounted via a mounting piece 2 . Such as figure 1 As shown, a U-shaped installation groove (not shown) with a lower opening is formed below the front fork 1 , and the front wheel 4 with a hub generator in the center is installed in the installation groove by a bicycle nut 5 . The structure of the hub dynamo will be described below.

[0031] 6 is the hub shell that is connected with the rim 8 of the tire 7 of the front wheel by means of spokes 9, as figure 1 As shown, it consists of a cylindrical housing 10 with one end (left side) open and a cover 11 covering the opening of the housing 10 . Magnets 12 alternately having N poles and S poles are fixed to the inner surface of the hub shell 6 , which is the rotor, via flanges. On both sides of the hub shell 6, a co...

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PUM

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Abstract

A hub generator for bicycle that can be correctly grounded and supply electricity. A hub generator for bicycle includes a hub casing rotating along with the front wheel (4) and affixed with a magnet around an axle surrounded by a generating coil (21), where the rotation of the front wheel (4) would generate electricity. This invention is characterized in that: the power supply line (23) for supplying electricity generated by the generating coil and the grounding of the generating coil (21) serve as a power supply socket (18) provided outside of the hub casing (18). To supply electricity to the electrical components of the bicycle, the power supplying wire (26) and the grounding wire (26) are connected to the power supply socket (18) so as to supply electricity to the electrical components without damaging the bicycle frame while ensuring conduction of electricity.

Description

technical field [0001] The present invention relates to a bicycle hub dynamo provided on a front wheel of a bicycle or the like. Background technique [0002] As a conventional hub dynamo for bicycles, the following structure is known: the hub shell of the front wheel whose inner surface is fixed with magnets alternately having N poles and S poles is rotatably supported on the axle protruding from the hub shell at both ends. The generator coil is installed on the axle in the hub shell, and at the same time, the output terminal powered by the generator coil is fixed on the axle outside the hub shell. This type of generator is installed on the bicycle by inserting both ends of the axle shaft with a circular cross section protruding from the hub shell into the U-shaped mounting groove of the bicycle front fork, and screwing nuts into the threaded part of the axle shaft. And when it is installed on the front fork, a toothed washer is inserted between the nut and the front fork,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62J6/12B62J11/19H02K21/24
Inventor 福田齐
Owner SANYO ELECTRIC CO LTD
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