BENDING MECHANISM USING MULTI-JOINT SLIDER LINK

Title:

BENDING MECHANISM USING MULTI-JOINT SLIDER LINK

Document Type and Number:

WIPO Patent Application WO/2004/041485

Kind Code:

A1

Abstract:

A bending mechanism capable of bending drive of ± 90° per degree of freedom by only an operation to directly slide a set of multi-joint links, a combination of such mechanisms making it possible to effect multi-degree of freedom bending. For this purpose, a first frame (1), a second frame (3) and a third frame (5) are pivotally connected in series disposition successively through a first rotary shaft (2) and a second rotary shaft (4). On the right-hand side of the first rotary shaft (2) of the first frame (1), a first driving link (7), a second driving link (9) and a third driving link (12) are connected. On the left-hand side of the first rotary shaft (2) of the first frame (1), a first constraining link (15) and a second constraining link (17) are connected. When the third driving link (12) is slid, the first frame (1) is turned from side to side.

Inventors:

DOHI TAKEYOSHI (JP)
HATA NOBUHIKO (JP)
YAMASHITA HIROMASA (JP)

Application Number:

PCT/JP2003/005522

Publication Date:

May 21, 2004

Filing Date:

April 30, 2003

Export Citation:

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Assignee:

JAPAN SCIENCE & TECH CORP (JP)
DOHI TAKEYOSHI (JP)
HATA NOBUHIKO (JP)
YAMASHITA HIROMASA (JP)

International Classes:

A61B19/00; B25J9/06; B25J17/00; B25J18/06; F16H21/46; F16H21/54; (IPC1-7): B25J17/00

Domestic Patent References:

WO2000051486A1

2000-09-08

Foreign References:

JPS61236493A	1986-10-21
JPH06320473A	1994-11-22
JPS61293796A	1986-12-24
JPS60114491A	1985-06-20