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:
Aug. 25, 2026
Filed:
Jun. 17, 2024
Dmg Mori Co., Ltd., Nara, JP;
Kenichi Mizukoshi, Nara, JP;
Isao Hikita, Nara, JP;
DMG MORI CO., LTD., Nara, JP;
Abstract
A tool rest includes: a tool holder including a clamp mechanism that operates by an oil pressure for clamping a tool; an attachment portion having a hole through which a hydraulic oil for the clamp mechanism is supplied, the tool holder being detachably attached to the attachment portion; a valve body arranged in the hole and operable between a first state in which, when the tool holder is not attached, circulation of the hydraulic oil is regulated upon receiving a pressure of the hydraulic oil, and a second state in which, when the tool holder is attached, circulation of the hydraulic oil is permitted; and an elastic member that is arranged in the hole and exerts an elastic force on the valve body so as to operate the valve body from the second state to the first state.