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:
Oct. 23, 1990
Filed:
Feb. 21, 1990
Katsunobu Kishi, Tokyo, JP;
Nitto Kohki Co., Ltd., Tokyo, JP;
Abstract
A chamfering machine comprises a casing, a rotating shaft projecting from one end of the casing, a ring-shaped connector enclosing the rotating shaft and having a slit formed parallel to the center axis of the rotating shaft, and also having a downward slope formed on the outer circumference of its lower end portion, a guide base having a ring-shaped boss detachably screwed into the ring-shaped connector, a lock ring detachably screwed onto the ring-shaped connector, the lock ring having an upward slope formed on the inner circumference thereof and slidable on the downward slope of the ring-shaped connector, when the lock ring is rotated and moved in the axial direction of the rotating shaft, to clamp the connector in the center direction of the rotating shaft, to firmly engage the connector with the ring-shaped boss, a cutting chip fixed to the rotating shaft which passes through the ring-shaped boss and having chamfering blades one of which partially projects from the underside of the guide base, and a guide means attached to the rotating shaft and projecting from the underside of the guide base to contact a side surface of a material to be chamfered.