ROTATING SHAFT HOLDING MECHANISM AND ROTATIONAL VISCOMETER WITH SAME

WIPO Patent Application WO/2013/171896

A1

Provided is a compact and high-precision rotating shaft holding mechanism which can be utilized even for a device in which a small amount of rotation is required. A rotating shaft holding mechanism is provided with parallel spring links each comprising: a movable side which is connected to a rotating shaft by a hinge at a connection point which is away a distance h in the radial direction from the center of rotation of the rotating shaft; deformable sides which are parallel to each other; hinges which each connect one end of each of the deformable sides to the movable side; and hinges which connect ends of the deformable sides to a stationary section. The rotating shaft holding mechanism or a rotational viscometer using the rotating shaft holding mechanism is configured in such a manner that the effective length of the deformable sides is set to h to permit the shaft, which is connected to the movable side by the hinge at the connection point which is away a distance h from the rotation center of the shaft in the radial direction, to rotate within a finite angle range, and in such a manner that the parallel spring links include at least two or more parallel spring links oriented in different directions.

NASHIMA TAKESHI (JP)
YAMAMOTO YASUYUKI (JP)

PCT/JP2012/062789

November 21, 2013

May 18, 2012

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NAT INST OF ADVANCED IND SCIEN (JP)
NASHIMA TAKESHI (JP)
YAMAMOTO YASUYUKI (JP)

G01N11/14; F16C11/04

JPH0587654A	1993-04-06
JPS6440088U	1989-03-09
JP2002048696A	2002-02-15
JPH07244057A	1995-09-19
JP2006322714A	2006-11-30
JP2002022867A	2002-01-23
JP2002022868A	2002-01-23
JP2005049214A	2005-02-24

See also references of EP 2851573A4

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