MOTOR UNIT, ELECTRIC BICYCLE, AND MOTOR DRIVE VEHICLE

To inhibit occurrence of jumping between a sprocket and a chain which are rotationally driven by a motor.SOLUTION: A motor unit 1A includes: an output shaft 14 to which rotation of a motor is transmitted; and a sprocket 21 connected to the output shaft 14. The sprocket 21 includes first teeth 211 an...

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1. Verfasser:	KAWAKAMI MASAFUMI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CYCLES LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS PERFORMING OPERATIONS POWERED PROPULSION OF SLEDGES OR RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES TRANSPORTING
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Beschreibung
Zusammenfassung:	To inhibit occurrence of jumping between a sprocket and a chain which are rotationally driven by a motor.SOLUTION: A motor unit 1A includes: an output shaft 14 to which rotation of a motor is transmitted; and a sprocket 21 connected to the output shaft 14. The sprocket 21 includes first teeth 211 and second teeth 212 wider than the first teeth 211. The first teeth 211 and the second teeth 212 are positioned alternately in a circumferential direction of the sprocket 21.SELECTED DRAWING: Figure 2 【課題】モータによって回転駆動されるスプロケットとチェーンとの間で歯飛びが発生することを抑える。【解決手段】モータユニット１Ａは、モータの回転が伝達される出力シャフト１４と、出力シャフト１４に連結されるスプロケット２１とを備える。スプロケット２１は、第１歯２１１と、第１歯２１１よりも幅広である第２歯２１２とを含む。第１歯２１１と第２歯２１２とは、スプロケット２１の周方向において交互に位置する。【選択図】図２