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.

Date of Patent:
Aug. 06, 2024

Filed:

Apr. 20, 2023
Applicant:

Makita Corporation, Anjo, JP;

Inventors:

Juan Chang, Kunshan, CN;

Haohao Wang, Kunshan, CN;

Wei Yang, Kunshan, CN;

Haruki Tejima, Anjo, JP;

Assignee:

MAKITA CORPORATION, Anjo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25F 5/02 (2006.01); B25B 21/02 (2006.01);
U.S. Cl.
CPC ...
B25F 5/02 (2013.01); B25B 21/02 (2013.01);
Abstract

An impact tool is less likely to have a shorter service life. An impact tool includes a motor, a spindle, a hammer, an anvil, and a lid. The spindle is rotatable by the motor. The spindle has an opening in a rear end face of the spindle, an internal space extending frontward from the opening and including a first space containing a lubricant oil and a second space connecting to a rear end of the first space, and a first feed port in an outer circumferential surface of the spindle. The hammer surrounds the spindle. The anvil is strikable by the hammer in a rotation direction. The lid is placeable through the opening into the second space. The first feed port allows supply of the lubricant oil from the first space to between the spindle and the hammer.


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