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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.:

US 10844946 B1

PDFFull Text
Expired
Date of Patent:
Nov. 24, 2020

Filed:

Jul. 19, 2018

Gear assembly, reduction gear and cleaning robot

Applicant:

Nidec Corporation, Kyoto, JP;

Inventors:

Tiecheng Zhang, Kyoto, JP;

Xuechao Zhang, Kyoto, JP;

Zhenmin Han, Kyoto, JP;

Assignee:

NIDEC CORPORATION, Kyoto, JP;

Attorney:

Keating & Bennett

Primary Examiner:

Marc Carlson

Int. Cl.
CPC ...
F16H 57/022 (2012.01); A47L 11/40 (2006.01); F16H 57/031 (2012.01); F16H 57/021 (2012.01); F16H 1/08 (2006.01); F16H 57/00 (2012.01); H02K 7/116 (2006.01); H02K 21/22 (2006.01); H02K 7/00 (2006.01); H02K 7/12 (2006.01); F16H 57/02 (2012.01);
U.S. Cl.
CPC ...
F16H 57/022 (2013.01); A47L 11/4069 (2013.01); F16H 1/08 (2013.01); F16H 57/0006 (2013.01); F16H 57/021 (2013.01); F16H 57/031 (2013.01); H02K 7/003 (2013.01); H02K 7/116 (2013.01); H02K 7/12 (2013.01); H02K 7/125 (2013.01); H02K 21/22 (2013.01); A47L 2201/00 (2013.01); F16H 2057/0221 (2013.01); F16H 2057/02034 (2013.01); H02K 2213/03 (2013.01);
Abstract

A gear assembly includes an upper cover and a lower cover, a stator fixed to the lower cover, a rotor opposite to the stator and including a rotary shaft and magnet, a main gear fixed to the rotary shaft and rotating along with the rotary shaft, and a helical gear engaged with the main gear, the main gear and the helical gear being both received in the cover member, the upper cover including a boss portion with a recess receiving a tip of the rotary shaft. The rotor is axially movable and when the rotary shaft stops rotating, the tip of the rotary shaft is in the recess of the boss portion, and when the rotary shaft rotates, the helical gear applies a force on the main gear, and the tip of the rotary shaft is disengaged from the recess of the boss portion.

Find Patent Forward Citations

Zhang, Tiecheng. (2020). Gear assembly, reduction gear and cleaning robot (U.S. Patent No. 10844946). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10844946

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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