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. 02, 1986
Filed:
Mar. 15, 1985
Fusao Fushiya, Anjo, JP;
Nobuhiro Inoue, Anjo, JP;
Makita Electric Works, Ltd., Anjo, JP;
Abstract
A safety device for a chain saw conventional in its overall construction is disclosed which comprises mainly a brake lever pivotally supported by the housing of the chain saw and arranged to stop the cutting chain when the brake lever is actuated either by inertia or by engagement with the operator's hand. The brake lever is formed with a cam surface adapted to press an engaging member connected to the drive shaft out of meshing engagement with an interlocking wheel for driving the cutting chain so as to shut off the driving power to be transmitted to the interlocking wheel. The brake lever also includes a braking member secured thereto and adapted for movement therewith in synchronism with the arcuate movement of the cam surface, into frictional braking engagement with the interlocking wheel for effecting a brake effect on the cutting chain.