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Title:
HUB CLUTCH
Document Type and Number:
Japanese Patent JPH04300733
Kind Code:
A
Abstract:

PURPOSE: To provide a hub clutch capable of automatic changeover for engagement and disengagement between a drive shaft and a wheel hub, according to difference of rotation of both.

CONSTITUTION: A rotationally moving control holder 16 and a fixed holder 17 are provided between engaging faces 13, 14 formed on opposite faces of a drive shaft 1 and a wheel hub 4 and a sprag 15 is assembled in the pocket of both holders 16, 17. An operating pin 18 is inserted in the pin hole 19 of the control holder 16 through a gap in the rotating direction, and a differential bearing 25 to decelerate rotation of the control holder against the drive shaft is provided. When the drive shaft is rotated against the wheel hub, both the holders 16, 17 are relatively rotated by the gap in the rotating direction, and the sprag 15 is let to be in the engaged condition. On the contray, when rotating speed of the wheel hub is higher than that of the drive shaft, the wheel hub is overrun against the sprag, and engagement is released.


Inventors:
ITO KENICHIRO
NOJIRI HIROMI
ADACHI TATEO
Application Number:
JP6475791A
Publication Date:
October 23, 1992
Filing Date:
March 28, 1991
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD
International Classes:
B60K23/08; (IPC1-7): B60K23/08



 
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