POWER TRANSMISSION DEVICE - OGURA CLUTCH CO LTD

Title:

POWER TRANSMISSION DEVICE

Document Type and Number:

WIPO Patent Application WO/2016/152347

Kind Code:

A1

Abstract:

In the present invention, the following are provided: a pulley (6) which serves as a rotating member; an elastic member which serves as a power transmission member; a fixing screw which passes through the pulley and elastic member; and a nut that, together with the fixing screw, sandwiches the pulley (6) and elastic member. Provided is a nut holder (25) which is attached to the pulley (6) via a locking mechanism. The locking mechanism includes: through-holes (14) of the pulley (6); hooks (13) of the nut holder (25) which can be inserted into the through holes (14); and elastic pieces (33) which are positioned near the hooks (13). In a state where the hooks (13) have been inserted into the through holes (14), the nut holder (25) is rotated with respect to the pulley (6) in one direction of rotation, and as a result thereof, a locking piece (36) of a hook (13) comes into contact with the pulley (6), and claw parts (43) of the elastic pieces (33) engage with the opening edge-section of the through holes (14). A power transmission device can be provided in which, while using a configuration that enables a nut holder to be easily attached, there is no possibility of the nut holder falling off due to the pressing force of the fixing screw pressing against the nut.

Inventors:

HARA YUKIHIRO (JP)
KANZAWA TAKAHIRO (JP)

Application Number:

PCT/JP2016/054825

Publication Date:

September 29, 2016

Filing Date:

February 19, 2016

Export Citation:

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Assignee:

OGURA CLUTCH CO LTD (JP)

International Classes:

F16H55/36

Foreign References:

JPH10103450A	1998-04-21
JP2004204889A	2004-07-22
JPS59177975U	1984-11-28
US20130337952A1	2013-12-19

Other References: