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:
Jun. 13, 2023
Filed:
Jul. 22, 2020
Makita Corporation, Anjo, JP;
MAKITA CORPORATION, Anjo, JP;
Abstract
A driver-drill () includes: a controller (), which stops rotation of a brushless motor () when a torque applied to a spindle () reaches a prescribed clutch-actuation torque; and a dial (), which is capable of specifying, to the controller (), the setting of the prescribed clutch-actuation torque within a prescribed high-low range of values. In the controller (), a relationship between clutch-actuation torques and each value in the high-low range is set such that, in a first range in which the values are low, changes in the clutch-actuation torques are the same in the low-speed mode and in the high-speed mode and such that, in a second range outside of the first range, the clutch-actuation torques in the low-speed mode are higher than in the high-speed mode.