LINK ACTUATING DEVICE

WIPO Patent Application WO/2012/049996

A1

Provided is a link actuating device which is compact and has a wide range of movement of a movable part, high posture adjustment accuracy, and high rigidity. An output member (15) is linked to an input member (14) via three or more sets of link mechanisms (11) so as to be able to change the posture thereof. The link mechanism (11) is configured from input-side and output-side end link members (11a, 11c) and a middle link member (11b). In the link mechanism (11), a geometric model formed by representing the respective link members (11a, 11b, 11c) by straight lines has a shape in which an input-side part and an output-side part are symmetric with respect to the middle part of the middle link member (11b). An immobilization mechanism (4) capable of immobilizing the output member (15) in an arbitrarily defined posture with respect to the input member (14) is provided in all of the three or more sets of link mechanisms (11). Further, a structure (5) which links the input member (14) and the output member (15) to each other by being brought into contact with contact receiving parts formed respectively in the input member (14) and the output member (15).

ISOBE HIROSHI (JP)
NISHIO YUKIHIRO (JP)
NAGANO YOSHITAKA (JP)

PCT/JP2011/072746

April 19, 2012

October 03, 2011

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NTN TOYO BEARING CO LTD (JP)
ISOBE HIROSHI (JP)
NISHIO YUKIHIRO (JP)
NAGANO YOSHITAKA (JP)

F16H21/54; B25J11/00

JP2004009276A	2004-01-15
JPH0811081A	1996-01-16
JPH0419082A	1992-01-23
JP2005305585A	2005-11-04
JPH1177577A	1999-03-23
JP2000120824A	2000-04-28

SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)

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