JPS6267840U

JPS6267840U -

Info

Publication number: JPS6267840U
Application number: JP16026685U
Authority: JP
Priority date: 1985-10-18
Filing date: 1985-10-18
Publication date: 1987-04-27

Description

[Brief explanation of drawings]

第１図はこの考案の実施例電気回路図、第２図
はこの考案の他実施例電気回路図、第３図は従来
例電気回路図、第４図はチヤタリングを説明する
ためのグラフである。３……発電機、５……ヒステリシス電圧発生手
段、１６……無接点スイツチ手段（スイツチング
トランジスタ）、１８……定格の大なる電球（高
速用電球、１９……定格の小なる電球（低速用電
球）、Ｖ_０……発電電圧。 Fig. 1 is an electrical circuit diagram of an embodiment of this invention, Fig. 2 is an electrical circuit diagram of another embodiment of this invention, Fig. 3 is an electrical circuit diagram of a conventional example, and Fig. 4 is a graph for explaining chattering. . 3... Generator, 5... Hysteresis voltage generating means, 16... Non-contact switching means (switching transistor), 18... Large rated light bulb (high speed light bulb, 19... Small rated light bulb (low speed) ), V ₀ ...Generation voltage.

Claims

[Scope of utility model registration request]

Corresponding to the generated voltage of a generator generated by bicycle riding, when the generated voltage is low voltage, a small bulb of a headlight rating is turned on, and when the generated voltage is high voltage, a large bulb of a headlight is turned on. The automatic switching device for a bicycle headlamp to turn on the headlight includes a non-contact switch means for controlling energization of a light bulb with a large rating, and a non-contact switch means for controlling energization of a light bulb with a large rating, and a non-contact switch means for controlling energization of a light bulb with a large rating, and a non-contact switch means for controlling energization of a light bulb with a high rating, A bicycle headlamp comprising hysteresis voltage generating means for turning on the contact switch means and maintaining the non-contact switch means in the ON state until the generated voltage becomes equal to or less than a second threshold value. Automatic switching device.