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:
Jan. 24, 1989
Filed:
Mar. 31, 1988
Taiichi Kumasaka, Katsuta, JP;
Yasuyuki Hirano, Katsuta, JP;
Katsuhiko Ozaki, Katsuta, JP;
Koichi Sawada, Katsuta, JP;
Hitachi Koki Company, Ltd., Tokyo, JP;
Abstract
A cutting apparatus comprising a swinging cutter unit which is pivotally coupled through a first shaft to a stationary working table so as to be swingable about the first shaft between its raised resting position and its lowered cutting position. The swinging cutter unit includes a motor-driven circular saw-blade fixedly mounted on a second shaft coupled to a drive motor, a housing for partially encasing an upper side portion of the circular saw-blade and supporting the second shaft so that the circular saw-blade is rotatable about the second shaft in response to operation of the drive motor, and a blade guard supported by the housing to be rotatable about the second shaft to expose and cover the saw-blade. The blade guard is biased by means of a spring so as to cover the saw-blade and has an engaging device at a portion of the outer surface thereof. An elongated arm is provided such that one end portion thereof is fixedly secured to a stationary portion of the cutting apparatus and the other end portion thereof is positioned near the engaging device. At the other end portion is provided a third shaft engaged with the engaging device so that the blade guard is rotated about the second shaft in response to a swinging movement of the cutter unit to expose the saw-blade when the cutter unit is moving to the cutting position and cover the portion thereof when moving to the resting position.