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:
Oct. 13, 2015
Filed:
Sep. 07, 2011
Junichi Nishikimi, Anjo, JP;
Junichi Nishikimi, Anjo, JP;
MAKITA CORPORATION, Anjo-Shi, JP;
Abstract
The variable speed switch according to the present invention is capable of outputting an electric signal for increasing or decreasing an amount of electric power supplied to the motor of an electric power tool according to a displacement amount of a switch-operating portion. The variable speed switch includes a wake-up contact configured to work when the switch-operating portion is operated and by which a voltage can be applied to a control circuit part of the motor to make the control circuit part in an operable state, and also includes a load sensor configured to receive a pressing force from the switch-operating portion by the displacement amount of the switch-operating portion after the operation of the wake-up contact is made and to output an electric signal according to the pressing force.