DIRECT-ACTING EXTENSION/RETRACTION MECHANISM

WIPO Patent Application WO/2017/208871

A1

In order to improve the durability of a feeding mechanism in a direct-acting extension/retraction mechanism, this direct-acting extension/retraction mechanism is equipped with: multiple flat-plate-shaped first segments (53) coupled to each other so as to be capable of bending at the front and back end surfaces; multiple groove-shaped second segments (54) coupled to each other so as to be capable of bending at the front and back end surfaces of a base part; a coupling segment (55) that couples the leading ends of the first and second segments; and a feeding mechanism part (26) equipped with multiple rollers (59, 60) for rigidly joining the first and second segments and supporting the segments so as to be capable of moving back and forth. The first and second segments are joined to each other by the rollers and stiffen into a straight line when the segments are fed forward, and together with the coupling part, form a columnar arm part, whereas the first and second segments are separated from each other at the rear of the rollers when the segments are drawn back, and return to a bent state. The rollers are formed from the same material as the first and second segments.

KANDA DAISUKE (JP)
YOON WOO-KEUN (JP)
MATSUDA HIROAKI (JP)

PCT/JP2017/018933

December 07, 2017

May 19, 2017

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LIFE ROBOTICS INC (JP)

F16G13/20; B25J18/02

WO2015137171A1

2015-09-17

JP2003207279A	2003-07-25
JPH04300175A	1992-10-23
JP2016084789A	2016-05-19
JP2014042864A	2014-03-13
JP2010006253A	2010-01-14
JP2006146032A	2006-06-08
JP2008281893A	2008-11-20

SEVEN COLOR PATENT FIRM (JP)

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