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. 09, 2024
Filed:
Jun. 26, 2018
Applicant:
Mitsuba Corporation, Gunma, JP;
Inventors:
Hiroyuki Uchimura, Gunma, JP;
Kazuaki Aoki, Gunma, JP;
Assignee:
MITSUBA Corporation, Gunma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/116 (2006.01); F16H 1/16 (2006.01); E05F 15/697 (2015.01); F16H 55/22 (2006.01); F16H 57/021 (2012.01);
U.S. Cl.
CPC ...
H02K 7/1166 (2013.01); F16H 1/166 (2013.01); E05F 15/697 (2015.01); E05Y 2900/55 (2013.01); F16H 55/22 (2013.01); F16H 2057/0213 (2013.01);
Abstract
Because the pressure angle β° (=12°) of teeth () of a worm wheel () is larger than the pressure angle α° (=11°) of teeth () of a worm (), tips of the teeth () of the worm wheel () can be more tapered as compared with a case in which the pressure angle of the teeth of the worm and the pressure angle of the teeth of the worm wheel are the same angle (the conventional case). Thereby, it is possible to ensure non-contact of teeth, which had been variable in terms of contact and non-contact in the case of the conventional form, even if there has been non-uniformity in the teeth () of the worm wheel ().