JPS6441485U

JPS6441485U -

Info

Publication number: JPS6441485U
Application number: JP16799487U
Authority: JP
Priority date: 1987-05-27
Filing date: 1987-11-02
Publication date: 1989-03-13

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す概略図、第２
図は一部の内部機構を露出して示した自転車用ダ
イナモの摘示側面説明図、第３図は回転補助ロー
ルの摘示斜視図、第４図は回転の伝達状態を示す
説明図、第５図は他の実施例を示す側面説明図図
及び第６図はさらに他の実施例の要部を示す側面
説明図である。２……自転車用ダイナモ、４……発電機主体部
、６……回転駆動軸部、２６……回転補助ロール
、２６ａ……径大ロール部、２６ｂ……径小ロー
ル部、Ｗ……車輪、Ｔ……タイヤ、Ｐ……摩擦板
。 Figure 1 is a schematic diagram showing one embodiment of the present invention;
The figure is an explanatory side view of a bicycle dynamo with some internal mechanisms exposed, Figure 3 is an exploded perspective view of the rotation assist roll, Figure 4 is an explanatory diagram showing the state of rotation transmission, and Figure 5 6 is an explanatory side view showing another embodiment, and FIG. 6 is an explanatory side view showing main parts of still another embodiment. 2... Bicycle dynamo, 4... Generator main part, 6... Rotation drive shaft part, 26... Rotation auxiliary roll, 26a... Large diameter roll part, 26b... Small diameter roll part, W... Wheel , T...tire, P...friction plate.

Claims

[Scope of utility model registration request]

It has a generator main body part and a rotary drive shaft part rotatably provided on the upper part of the main body part, and when the rotary drive shaft part rotates, electric power is generated in the generator main body part. In the bicycle dynamo, a large-diameter roll portion having a larger diameter than the rotational drive shaft portion and a small-diameter roll portion having a smaller diameter than the large-diameter roll portion are provided adjacent to the large-diameter roll portion; A rotation auxiliary roll configured such that a roll part and a small diameter roll part rotate coaxially is installed so that the large diameter roll part is always in contact with the rotational drive shaft part,
The small diameter roll part of the rotation auxiliary roll is brought into contact with the rotating part of the bicycle wheel so as to be able to freely approach and separate, and in the contact state, the rotation of the wheel is first transmitted to the rotation auxiliary roll via the small diameter roll part, and then A bicycle equipped with a rotation auxiliary roll, the rotation of which is transmitted to the rotation drive shaft through the large diameter roll, and the rotation drive shaft is rotated with the rotation auxiliary roll interposed therebetween. dynamo.