Title:
TOOL CHUCK, TOOL-HOLDING METHOD AND TOOL-DETACHING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/047221
Kind Code:
A1
Abstract:
Provided is a tool chuck capable of gripping a tool with good precision by means of a collet when the collet is pushed into the chuck body. The tool chuck is provided with: a collet (4) for gripping a tool (5); a chuck body (2) having on the tip thereof a receiving section (25) into which the collet (4) is inserted along the axis (AX); a holding member (3) inside which the collet (4) is installed and which is configured so as to be able to move as a unit with said collet (4) in an axial direction (X) that is based on the axis (AX); and a nut (N), which is installed on the outside of the chuck body (2) in a radial direction (R) that is based on the axis (AX) and radially on the inside of which the holding member (3) is installed. The holding member (3) has a movement-permitting mechanism (9) for permitting said holding member (3) to move relative to the nut (N) in the axial direction (X) when the nut (N) moves relative to the chuck body (2) in the axial direction (X).
Inventors:
NAKATANI JOJI (JP)
SURUGA HIROKAZU (JP)
SURUGA HIROKAZU (JP)
Application Number:
PCT/JP2016/076104
Publication Date:
March 15, 2018
Filing Date:
September 06, 2016
Export Citation:
Assignee:
BIG DAISHOWA CO LTD (JP)
International Classes:
B23B31/20
Domestic Patent References:
| WO2008053638A1 | 2008-05-08 | |||
| WO2010134473A1 | 2010-11-25 |
Foreign References:
| US2358300A | 1944-09-19 | |||
| JPS5942807U | 1984-03-21 | |||
| JPH0623608A | 1994-02-01 | |||
| JPS5311779U | 1978-01-31 |
Other References:
See also references of EP 3511098A4
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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