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:
May. 26, 2026
Filed:
Apr. 07, 2025
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Nanjing Chervon Industry Co., Ltd., Nanjing, CN;
Abstract
An impact tool includes a motor shaft; an output shaft used for outputting power and rotating about an output axis; an impact mechanism for providing an impact force; and a transmission mechanism for transmitting power between the motor shaft and the impact mechanism. The transmission mechanism includes a multi-stage transmission assembly, at least one stage of transmission assembly in the multi-stage transmission assembly has an adjustable transmission ratio, and an output transmission ratio of the multi-stage transmission assembly is greater than 1. A rotational speed and torque of the tool are adjusted mechanically so that output power of an electric motor is unchanged, and motor efficiency is improved to a certain extent.