ELECTRIC GRIPPING DEVICE AND PRESSING DRIVE DEVICE

WIPO Patent Application WO/2011/111601

A1

Disclosed is an electric gripping device wherein gripping force reliably continues to be exerted on a workpiece even if energization of an electric motor is stopped, and wherein the workpiece reliably continues to be gripped in a predetermined attitude , with energy conservation achieved. The electric gripping device is provided with a driven member (14) which is given translational motion by an electric motor (4), a plurality of movable claws (3, 8) which open and close so as to grip the workpiece, a link mechanism (51) which causes the movable claws (3, 8) to undergo displacement in such a way as to be interlocked with the displacement of the driven member (14), and a locking mechanism (130) which limit the displacement of the driven member (14) when energization of the motor (4) is at a stop. The link mechanism (51) comprises one or more links. Furthermore, at least one of said links consists of an elastic body (19). This elastic body (19) is formed in such a way that when the movable claws (3, 8) press the workpiece, the elastic body (19) deforms due to the resulting reaction force, leading to elastic force being accumulated.

TOMIOKA KICHISABURO
MOCHIZUKI TAKAHIRO
SAWADA MASAYA

PCT/JP2011/054905

September 15, 2011

March 03, 2011

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THK CO LTD (JP)
TOMIOKA KICHISABURO
MOCHIZUKI TAKAHIRO
SAWADA MASAYA

B25J15/08; B23Q3/06; B25B1/06

JP2009125851A	2009-06-11
JP2009262247A	2009-11-12
JP2008105116A	2008-05-08
JPS63168649U	1988-11-02
JPH10202559A	1998-08-04

IDE Tetsuroh et al. (JP)
Tetsuro Ide (JP)

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