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:
Dec. 23, 2025
Filed:
Jan. 12, 2022
Tungaloy Corporation, Fukushima, JP;
TUNGALOY CORPORATION, Fukushima, JP;
Abstract
Provided is a cutting insert easy to be gripped by an operator or a robot hand. First and second end surfaces () are formed in substantially polygonal shapes having second and fourth corners (B, H) formed at obtuse angles and first and third corners (A, G) formed at acute angles. A peripheral side surface () includes a first curved portion () connecting the first and third corners (A, G), a second curved portion () connecting the second and fourth corners (B, H), and a first side surface () interposed between the first and second curved portions (). The first side surface () is inclined with respect to a center axis (O). The second curved portion () is provided with a grip portion (), and the grip portion () includes at least one of a shape of each of plane surfaces () chamfered parallel to the center axis (O) and a shape of a recessed portion () formed to be spaced apart from the first and second end surfaces () and recessed toward the center axis (O).