Title:
COOLANT SUPPLY DEVICE AND MACHINE TOOL
Document Type and Number:
WIPO Patent Application WO/2020/261844
Kind Code:
A1
Abstract:
Provided are a coolant supply device in which ejection of coolant is easily switched on and off, and a machine tool. A coolant supply device 10 supplies coolant to a workpiece-processing area in a machine tool. The coolant supply device 10 includes: a rotary nozzle 40 formed in a cylindrical shape and having, in the cylindrical outer circumferential surface thereof, ejection ports 51 through which the coolant is ejected; and a supply device body 20 rotatably supporting the rotary nozzle and configured to be able to supply the coolant to the rotary nozzle. The supply device body is configured to be able to switch between an ejection permitted area, in which the ejection ports are opened, and an ejection stop area, in which the supply device body faces the ejection ports to close the ejection ports, in accordance with the rotation of the rotary nozzle.
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Inventors:
YABE KOICHI (JP)
SHIDA TADAYASU (JP)
ANDO YOSUKE (JP)
KAI SHINPEI (JP)
SHIDA TADAYASU (JP)
ANDO YOSUKE (JP)
KAI SHINPEI (JP)
Application Number:
PCT/JP2020/020798
Publication Date:
December 30, 2020
Filing Date:
May 26, 2020
Export Citation:
Assignee:
CITIZEN WATCH CO LTD (JP)
CITIZEN MACHINERY CO LTD (JP)
CITIZEN MACHINERY CO LTD (JP)
International Classes:
B23Q11/10; B05B1/30
Foreign References:
US5313743A | 1994-05-24 | |||
JPH02311240A | 1990-12-26 | |||
JP2016132091A | 2016-07-25 | |||
JP2018183851A | 2018-11-22 | |||
JPS60172646U | 1985-11-15 | |||
JPH0724542U | 1995-05-09 |
Other References:
See also references of EP 3950219A4
Attorney, Agent or Firm:
TOWA NAGISA INTERNATIONAL PATENT FIRM (JP)
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