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Title:
HARDNESS-VARIABLE ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2017/094085
Kind Code:
A1
Abstract:
A hardness-variable actuator (10) is mounted on a flexible member and has the function of providing different hardnesses to the flexible member. The hardness-variable actuator (10) is provided with a shape memory member (20), the phase of which can change between a first phase and a second phase; an inducing member (30) for causing a change of phase between the first phase and the second phase in the shape memory member (20); and a cooling mechanism (70) for cooling the shape memory member (20). When in the first phase, the shape memory member (20) assumes a soft state able to deform readily in accordance with external force and provides low hardness to the flexible member; when in the second phase, the shape memory member (20) assumes a hard state exhibiting a tendency to assume a memorized shape in opposition to external force and provides high hardness to the flexible member. The cooling mechanism (70) includes a heat transfer medium (72) that promotes heat dissipation of at least part of the shape memory member (20).

Inventors:
TAKAHASHI, Masaya (43-2 Hatagaya 2-chome, Shibuya-k, Tokyo 72, 〒1510072, JP)
Application Number:
JP2015/083648
Publication Date:
June 08, 2017
Filing Date:
November 30, 2015
Export Citation:
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Assignee:
OLYMPUS CORPORATION (43-2, Hatagaya 2-chome Shibuya-k, Tokyo 72, 〒1510072, JP)
International Classes:
A61B1/00; F03G7/06
Foreign References:
JPS58101601U1983-07-11
JP2011194126A2011-10-06
JPH06292652A1994-10-21
JPH0739586A1995-02-10
JPS61100392A1986-05-19
JP2004150283A2004-05-27
JP2005046273A2005-02-24
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (11th Floor Celestine Shiba Mitsui Bldg., 3-23-1 Shiba, Minato-k, Tokyo 14, 〒1050014, JP)
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