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. 21, 2001
Filed:
Oct. 25, 1999
Yoshio Osada, Hitachinaka, JP;
Toshihiko Tachibana, Hitachi, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
A blade is inserted into a slit which extends in an axial direction of a plunger. A bore extends in a direction normal to the axial direction of the plunger and merges with the slit. A locking pin is slidably disposed in the bore. A blade holder is coupled around the plunger and slidable in the axial direction of the plunger. The blade holder shifts in an axially forward direction to generate a pushing force applied to the locking pin. The locking pin engages with a hole of the blade. Furthermore, the blade holder shifts in an axially rearward direction to release the pushing force applied to the locking pin. The locking pin disengages from the hole of the blade.