Wrist and joint devices
The wrist device addresses routing challenges by using a detachable pipe fitting system to linearly route air tubes, preventing blockages and contact risks, while maintaining appearance and improving workability.
JP7842196B2Active Publication Date: 2026-04-07FANUC LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-03-04
- Publication Date
- 2026-04-07
Smart Images

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Abstract
The purpose of the present disclosure is to prevent deterioration of the circulation function of a fluid such as air due to clogging in relation to the routing of a tube of the fluid, suppress the risk of contact with peripheral parts, etc., without causing changes in appearance, and also increase ease of connection, assembly, and maintenance. A wrist device 20 according to one aspect of the present disclosure is a device mounted on the tip of a robot arm. The wrist device 20 comprises: a flange 27 having an attachment plate 21 for attaching external equipment; and a base 16 rotatably supporting the flange 27. A hole 24 for connecting a pipe fitting 51 disposed outside the wrist device 20 and a pipe fitting 52 disposed inside the wrist device 20 is drilled in the attachment plate 21.
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Citation Information
Patent Citations
Finger device
JP1989078792A
Wrist mechanism of industrial robot
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Robot wrist mechanism
JP1994079684A
Complex type rotary coupling device
JP1995098085A
Industrial robot
JP1999277478A