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. 28, 2020
Filed:
Feb. 10, 2017
Hitachi Koki Co., Ltd., Tokyo, JP;
Nobuhiro Takano, Ibaraki, JP;
Kazuhiko Funabashi, Ibaraki, JP;
Hideyuki Tanimoto, Ibaraki, JP;
Chikai Yoshimizu, Ibaraki, JP;
Hiromi Ozawa, Ibaraki, JP;
Yoshihiro Hoshi, Ibaraki, JP;
KOKI HOLDINGS CO., LTD., Tokyo, JP;
Abstract
When a main switch () is turned ON, an electric operating machine () is put in the standby mode. With a trigger () being pulled in the standby mode, a power supply circuit () applies a voltage to a drive part (). The power supply circuit () adjusts the voltage applied to the drive part () for a voltage corresponding to the pulling rate of the trigger (). When the current running toward the drive part () exceeds the rated value of the drive part (), the power supply circuit () automatically stops power supply to the drive part (). On the other hand, when the output voltage of a battery () drops and the battery () is put in an overdischarge state, power supply to the drive part () is automatically stopped. When it is detected that the battery () undergoes an abnormal event, power supply to the drive part () is automatically stopped.