Title:
LINEAR EXTENSION/RETRACTION MECHANISM AND ROBOT ARM MECHANISM
Document Type and Number:
WIPO Patent Application WO/2017/170302
Kind Code:
A1
Abstract:
The present invention improves the durability of a hinge part that couples together, in a bendable manner, pieces of a linear extension/retraction mechanism and a robot arm mechanism. The linear extension/retraction mechanism comprises: a plurality of first pieces (53) each of which has a plate-like shape and which are coupled together in a bendable manner through a first hinge part (300); and a plurality of second pieces (54) each of which has a U-shaped cross section or a rectangular cross section and which are coupled together, at the bottom surface side, in a bendable manner through a second hinge part (400). The first hinge part (300) includes: a cylindrical shaft (60); a shaft bearing part (533) provided at the rear or front end of each of the first pieces so as to protrude backward or forward; and a shaft support part (532) provided at the front or rear end of each of the first pieces so as to protrude forward or backward. The bearing part is provided with needle roller bearings (538-1, 538-2).
Inventors:
YOON WOO-KEUN (JP)
Application Number:
PCT/JP2017/012208
Publication Date:
October 05, 2017
Filing Date:
March 26, 2017
Export Citation:
Assignee:
LIFE ROBOTICS INC (JP)
International Classes:
F16G13/20; B25J18/02; F16C19/46; F16G13/06; F16H19/02
Domestic Patent References:
| WO2011152265A1 | 2011-12-08 |
Foreign References:
| US20130205926A1 | 2013-08-15 | |||
| JPS53152388U | 1978-11-30 |
Attorney, Agent or Firm:
SEVEN COLOR PATENT FIRM (JP)
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