DRIVE UNIT AND POWER-ASSISTED BICYCLE

To provide a compact drive unit capable of minimizing a region around a crank shaft and a power-assisted bicycle provided with the same.SOLUTION: A drive unit 20 provided with a motor is placed at an intermediate position between a front wheel and a rear wheel. A crank shaft 7a and a motor 21 are pl...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	To provide a compact drive unit capable of minimizing a region around a crank shaft and a power-assisted bicycle provided with the same.SOLUTION: A drive unit 20 provided with a motor is placed at an intermediate position between a front wheel and a rear wheel. A crank shaft 7a and a motor 21 are placed at different axial centers from each other in the drive unit 20. A substrate 24 is placed in the drive unit 20. In a side view of the drive unit 20 along the crank shaft 7a, the substrate 24 is placed so as to have a portion overlapping with a stator 21c of the motor 21.SELECTED DRAWING: Figure 3 【課題】クランク軸周りの領域を最小限に抑えることが可能となる小型の駆動ユニットおよびこの駆動ユニットを備えた電動アシスト自転車を提供する。【解決手段】モータを備えた駆動ユニット２０が、前輪と後輪との間の中間位置に配置され、クランク軸７ａと、モータ２１とが、駆動ユニット２０において互いに異なる軸心で配置され、駆動ユニット２０内に基板２４が配置され、この基板２４が、駆動ユニット２０をクランク軸７ａに沿って側面視した場合に、モータ２１のステータ２１ｃに重なる部分を有するように配置されている。【選択図】図３