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:
Nov. 08, 2016
Filed:
Dec. 25, 2012
Hitachi Koki Co., Ltd., Tokyo, JP;
Yasuo Etou, Hitchinaka, JP;
Satoru Matsuno, Hitachinaka, JP;
Kouji Sagawa, Hitachinaka, JP;
Miyoji Onose, Hitachinaka, JP;
Yasutaka Shimizu, Hitachinaka, JP;
Ai Nakayama, Hitachinaka, JP;
HITACHI KOKI CO., LTD., Tokyo, JP;
Abstract
A chainsaw having improved cutting workability is provided. A chainsaw is used to cut an object to be worked by a saw chain. A chainsaw main body is provided with an electric motor and a sprocket, and a guide bar around which the saw chain is wound is provided on the chainsaw main body. The guide bar is attached to the chainsaw main body by a screw member serving as an attaching member. A load sensor detects whether or not the guide bar is attached to the chainsaw main body. Rotation of the saw chain is prohibited based upon a signal from the load sensor when the guide bar is not attached to the chainsaw main body.