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. 30, 2025
Filed:
Sep. 27, 2024
Delta Electronics, Inc., Taoyuan, TW;
Delta Electronics, Inc., Taoyuan, TW;
Abstract
An inner gear wheel with impact absorption structure and a reducer using same are disclosed. The inner gear wheel includes a body wheel, fixing holes, an impact absorption structure and buffer elements. The body wheel includes an inner ring surface surrounding an axis and inner gears disposed around the inner ring surface. Fixing holes penetrate the body wheel along an axial direction. The impact absorption structure is disposed corresponding to one of the fixing holes, and includes buffer grooves and a connecting slit. The buffer grooves are disposed at two sides of the corresponding fixing hole along a circumferential direction. The connecting slit extends along the circumferential direction between the inner ring surface and the fixing hole and connects the pair of buffer grooves. The buffer elements are disposed in the buffer grooves to absorb stress transmitted from an outer gear plate engaged with the inner gear wheel.