The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
May. 26, 2020
Citizen Watch Co., Ltd., Tokyo, JP;
Citizen Machinery Co., Ltd., Nagano, JP;
Koichi Yabe, Kitasaku-gun, JP;
Tadayasu Shida, Kitasaku-gun, JP;
Yosuke Ando, Kitasaku-gun, JP;
Shinpei Kai, Kitasaku-gun, JP;
CITIZEN WATCH CO., LTD., Tokyo, JP;
CITIZEN MACHINERY CO., LTD., Nagano, JP;
Abstract
Provided are a coolant supply device and a machine tool in which ejection of a coolant is easily switched on and off. A coolant supply devicefor supplying a coolant to a workpiece machining area in a machine tool, the coolant supply device comprising: a rotary nozzleformed to have a cylindrical shape and having, at an outer circumferential face thereof having the cylindrical shape, an ejection portfor ejecting the coolant; and a supply device bodyrotatably supporting the rotary nozzle and configured to be capable of supplying the coolant to the rotary nozzle. The supply device body is configured to be capable of switching an ejection allowed range in which the ejection port is opened and an ejection stopped range in which the ejection port is blocked from each other in accordance with rotation of the rotary nozzle.