Flexible joint
The flexible joint addresses the complexity and cost issues of slip rings and rotary joints by using a wavy-wired internal wirings and a polymer sheet to convert torsional loads into bending loads, offering a compact and efficient signal transmission solution for industrial robots.
JP7885649B2Active Publication Date: 2026-07-07PROTERIAL LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- PROTERIAL LTD
- Filing Date
- 2022-09-30
- Publication Date
- 2026-07-07
Smart Images
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Abstract
To provide a flexible joint which has a small size and a simple structure.SOLUTION: A flexible joint 1 comprises: a housing 2 having a first housing 21 and a second housing 22 rotatably provided with respect to the first housing 21; an internal wiring 4 that is provided in the housing 2; and a sheet member 5 for holding the internal wiring 4. The sheet member 5 is arranged along a rotational shaft O when the first and second housings 21 and 22 are relatively rotated, one end part in an axial direction of the rotational shaft O is fixed to the first housing 21, and the other end part is fixed to the second housing 22. The internal wiring 4 is fixed to the sheet member 5 in a state where it becomes a wave form in a plan view from a thickness direction of the sheet member 5. In the sheet member 5, a notch 6 is formed so as to direct to a position where a wiring shape of the internal wiring 4 becomes a concave shape from the end part in a width direction of the sheet member 5.SELECTED DRAWING: Figure 2
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