Passive joint device, cable guide, and power transmission mechanism
US11883953B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2020 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Feb 15, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H37/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A passive joint device for supporting a rotation-side member rotatably about a horizontal axis in a vertical direction with respect to a fixed-side member, includes: a cylindrical cam member having a pair of cam surfaces symmetrically arranged about a horizontal axis, a pedestal slidably disposed along the horizontal axis fixed to the rotation-side member, the pedestal having a pair of cam followers that contact with each of the pair of cam surfaces, a spring disposed inside the horizontal axis and biasing the pedestal toward the fixed-side member along the horizontal axis, wherein the spring force causes the pair of cam followers to come into contact with the pair of cam surfaces, and provide upward rotational force to the rotation-side member to reduce the downward rotational force of the rotation-side member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.