Ball-hinged transmission shaft with straight shaft
US11761491B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2021 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Aug 2, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D3/44
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball-hinged transmission shaft with a straight shaft includes a socket, a ball, and a straight shaft. A rolling element is further coaxially provided on a straight shaft. The rolling element is a rotator with an axis of the straight shaft as a center of rotation. An upper portion of the rolling element is connected to a bearing. A mouth-shaped surface is further respectively provided at two ends of a transmission hole of a ball. The mouth-shaped surface is a curved surface matching the shape of the rolling element. The rolling element is fit and provided in the mouth-shaped surface at the two ends of the transmission hole of the ball. The ball is restricted by an inner positioning spherical surface of a socket, the straight shaft, and the rolling element at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.