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Title:
DIRECT-ACTING EXTENSION/RETRACTION MECHANISM
Document Type and Number:
WIPO Patent Application WO/2017/208871
Kind Code:
A1
Abstract:
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.

Inventors:
KANDA Daisuke (2-9-11 Tomioka, Koto-k, Tokyo 47, 〒1350047, JP)
YOON Woo-Keun (2-9-11 Tomioka, Koto-k, Tokyo 47, 〒1350047, JP)
MATSUDA Hiroaki (2-9-11 Tomioka, Koto-k, Tokyo 47, 〒1350047, JP)
Application Number:
JP2017/018933
Publication Date:
December 07, 2017
Filing Date:
May 19, 2017
Export Citation:
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Assignee:
LIFE ROBOTICS INC. (2-9-11, Tomioka Koto-k, Tokyo 47, 〒1350047, JP)
International Classes:
F16G13/20; B25J18/02
Domestic Patent References:
WO2015137171A12015-09-17
Foreign References:
JP2003207279A2003-07-25
JPH04300175A1992-10-23
JP2016084789A2016-05-19
JP2014042864A2014-03-13
JP2010006253A2010-01-14
JP2006146032A2006-06-08
JP2008281893A2008-11-20
Attorney, Agent or Firm:
SEVEN COLOR PATENT FIRM (5F RACINE KANDA Bldg. 1-26 Kanda-Sudacyo, Chiyoda-ku Tokyo, 41, 〒1010041, JP)
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