JPH0112529Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a bicycle generator that is used by being attached to the front hawk of a bicycle.

(B) Prior Art This type of bicycle generator generally generates electricity by pressing a rotary drive wheel against the side of the rubber tire of the bicycle wheel. However, in this conventional example, since the rotary drive wheel is always in pressure contact with the side surface of the bicycle tire, there is a drawback that the side surface of the tire may be damaged. In order to prevent this drawback, it has been proposed that the rotary drive wheel be made of an elastic material such as rubber and pressed against the metal rim of the bicycle wheel. It gets wet and slips, making it impossible to generate enough power.
There is a problem. In order to solve this problem, for example, as shown in Japanese Utility Model Publication No. 55-38794, a rotary drive wheel made of synthetic rubber is pressed against the metal rim of the bicycle wheel in sunny weather and rotated, while in rainy weather this A rubber roller cap is mounted on a drive shaft protruding from a rotary drive wheel, and the rotary drive wheel is in contact with a metal rim, and the roller cap is in contact with a rubber tire to prevent slipping even in rainy weather. There is a known device that does this, but in this case, it is necessary to secure a storage space for the roller cap in sunny weather, and there is a risk of losing the roller cap.

(c) Purpose of the invention This invention allows the rotary drive wheel to face either the rubber tire side surface or the metal rim by attaching the generator itself so that it can move freely in the vertical direction. It can be easily positioned on the metal rim at times, or on the side of the rubber tire in rainy weather, to prevent a drop in power generation capacity due to slipping.

(d) Structure of the invention The bicycle generator of the present invention consists of a mounting bracket attached to the fork of the bicycle, a generator mounting piece fixed to the mounting bracket, and a mounting screw fixing these to each other, One of the mounting brackets or the generator mounting piece is provided with a long hole whose longitudinal direction is the radial direction of the bicycle wheel, and one of the mounting brackets or the generator mounting piece is provided with a bent wall that clamps both side edges of the other one to prevent rotation. is provided in parallel to the elongated hole.

(E) Function Therefore, simply by loosening this mounting screw, the generator body moves up and down in the radial direction of the bicycle wheel within the range of the elongated hole, and the rotating drive wheel is attached to the metal rim or rubber tire of the bicycle wheel. It can be easily opposed to the side, and furthermore, when moving up and down, the bending wall provided on one side of the mounting bracket or generator mounting piece guides by holding both side edges of the other side, so that the generator body is tilted. It cannot be attached to the mounting bracket in this state.

(e) Embodiment 1 is a bicycle generator, 2 is its rubber rotary drive wheel, and 3 is its lifting device. By operating the lever 4 of this lifting device 3, the generator 1 is moved in the direction of the bicycle wheels 5. They are moving closer to each other and moving away from each other. Reference numeral 6 denotes a generator mounting piece which is extended further downward by once folding back the shaft portion of this lifting device 3;
A screw hole 7 for a nut is provided through the lower part thereof.

8 is a front fork that pivotally supports the bicycle wheel 5; 9 is a mounting bracket whose one end is welded to the front fork 8; this mounting bracket 9 has a mounting surface 10 that is elongated in the radial direction of the bicycle wheel 5; Furthermore, a long hole 11 whose longitudinal direction is in the radial direction of the bicycle wheel 5 is formed through the central portion of the mounting surface 10. Further, 12 and 12 are provided with the long holes 1 on both sides of this mounting surface 10.
1, and by sandwiching the generator mounting piece 6 between these bent walls 12, 12, the generator mounting piece 6 can be moved only in the radial direction. It guides the generator mounting piece 6 to move up and down, and then prevents the generator mounting piece 6 from rotating.

13 is a mounting screw for fixing the generator mounting piece 6 and the mounting bracket 9; 14 is a washer;
The generator 1 is attached to the front fork 8 of the bicycle body by tightening the screw shaft 15 of No. 3 into the nut screw hole 7 of the generator attachment piece 6 through the washer 14 and the elongated hole 11 of the attachment fitting 9. Moreover, this mounting position can be moved up and down in the radial direction within the range of the elongated hole 11, so that the projecting state of the generator mounting piece 6 relative to the mounting bracket 9 can be adjusted to the elongated hole 11.
Therefore, the rotary drive wheel 2 can be positioned and fixed so as to face the side surface of the rubber tire 16 or the metal rim 17 of the bicycle wheel 5.

FIG. 2 shows another embodiment of the present invention, in which a long hole 11' is formed through the generator mounting piece 6' and a screw through hole 18 is formed through the mounting bracket 9'. Yes, the screw shaft 15 of the butterfly screw 13 is attached to the washer 14,
The nut 1 is inserted through the screw through hole 18 and the long hole 11'.
9, the mounting bracket 9' and the generator mounting piece 6' are fixed.

(f) Effects of the invention Therefore, by simply loosening the mounting butterfly screw, the bicycle generator can be easily moved up and down in the radial direction of the bicycle wheel within the range of the elongated hole. The rotary drive wheel can be positioned and fixed so that it faces either the rubber tire side surface or the metal rim of the bicycle wheel, so the rotating drive wheel can be moved to the part facing the rubber tire side surface on rainy days, and to the metal rim facing part on sunny days. Therefore, it is possible to obtain a bicycle generator that is free from slippage and whose power generation capacity is not reduced.

In addition, since slipping is not prevented by switching between rainy weather and sunny weather by attaching and detaching the roller cap, there is also the risk of parts such as the roller cap being lost. It doesn't exist at all.

[Brief explanation of the drawing]

The drawings all relate to embodiments of the bicycle generator of the present invention; FIG. 1A is an overall view, B is an exploded view, C is a main part view, and FIG. 2 is an exploded view of another embodiment. 8... Front fork, 9, 9'... Mounting bracket, 6,
6'... Generator mounting piece, 13... Butterfly screw, 11,
11'... Long hole, 12, 12... Bent wall.

Claims (1)

[Scope of claim for utility model registration] Mounting bracket 9, generator mounting piece 6, and mounting screw 1
3, one of the mounting bracket 9 or the generator mounting piece 6 is provided with a long hole 11, and either one is provided with a bent wall 12, and the long hole 11 has a longitudinal direction that corresponds to the length of the bicycle. The bending wall 12 is parallel to the elongated hole 11 while sandwiching both side edges of the other mounting bracket 9 or the generator mounting piece 6, and the mounting bracket 9 is parallel to the elongated hole 11. , the generator mounting piece 6 is attached to the fork part of the bicycle, and the generator mounting piece 6 is attached to the mounting bracket 9.
The mounting screw 13 fixes the mounting bracket 9 and the generator mounting piece 6 to each other in the bicycle generator.