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:
Dec. 03, 2024
Filed:
Aug. 31, 2023
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Teijiro Yamanaka, Yokosuka, JP;
Akira Yamamoto, Yokosuka, JP;
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
An internal meshing type gear device includes: an internal gear; and an external gear that meshes with the internal gear, in which, when a straight line passing through an external gear center and an internal gear center is defined as a gear center line, a pitch point between the external gear and the internal gear is positioned radially inside an external tooth tip circle and an internal tooth tip circle, an intersection point between a normal line to a contact point locus between the external gear and the internal gear and the gear center line is positioned between the pitch point and the external gear center, and the contact point locus is positioned in a meshing region between the external and internal tooth tip circles within an angle range in which an angle centered on the pitch point from the gear center line is 0 to π/2 [rad].