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Title:
LINEAR EXPANSION/CONTRACTION MECHANISM
Document Type and Number:
WIPO Patent Application WO/2017/208870
Kind Code:
A1
Abstract:
A purpose of the present invention is to improve efficiency in the task of aligning an arm part of a linear expansion/contraction mechanism. This linear expansion/contraction mechanism has a plurality of plate-shaped first segments (53) and a plurality of groove-shaped second segments (54). The first and second segments are bendably connected to one another, and the forwardmost of each are linked with a linking segment (55). An advancing mechanism (25) is equipped with a plurality of rollers (59), strongly clamps the first and second segments from above and below and from left and right, and provides support such that the first and second segments can freely move forward and back. When advanced forward, the first and second segments are linked to one another by the rollers, become rigid in a linear shape, and together with the linking part form a columnar arm part (5), and when retracted backward, the first and second segments are separated from one another behind the rollers and return to a bending condition. Protruding alignment parts (71, 72) are provided to side surfaces of the linking segment (55), said protruding alignment parts coming into contact with receiving parts of the advancing mechanism in order to align the arm part with a reference position with regard to the advancing mechanism.

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Inventors:
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:
JP2017/018932
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
WO2013187469A12013-12-19
Foreign References:
JPH06230811A1994-08-19
JPH0852684A1996-02-27
JPH05131374A1993-05-28
JPH03294188A1991-12-25
JP2017007021A2017-01-12
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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