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:
Sep. 30, 1997
Filed:
Oct. 06, 1995
Keishiro Murayama, Tokyo, JP;
Osamu Ebisawa, Tokyo, JP;
Max Co., Ltd., Tokyo, JP;
Abstract
A drive link is coupled to an end of a ratchet wheel, and the other end of the drive link is slidably arranged in a guide hole formed in a side wall of a nose holder. The nose holder has a control plate rotatably attached to the other end of the drive link. The control plate is urged by a spring so as to engage with the other end of the drive link with such a strength as to temporarily stop the movement of the drive link when the drive link is in the course of retreating together with the nose portion. The other end of the drive link is designed to engage with a front end of the guide hole while the nose portion is in the course of advancing from a retreat end. By causing the ratchet wheel to make a forward/backward rotation based on stoppage of the drive link while the nose portion is in the course of retreating and while the nose portion is in the course of advancing, a feed wheel is rotated intermittently in a coupled screw feed direction.