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    • 10. 发明申请
    • ROBOTIC JOINT DEVICE AND ROBOT ARM
    • WO2023001423A1
    • 2023-01-26
    • PCT/EP2022/062774
    • 2022-05-11
    • SIEMENS AKTIENGESELLSCHAFT
    • BACHMANN, ChristianGERLICH, MatthiasNEMOTO, TakeruWALTER, Jonas
    • B25J9/00B25J9/06B25J17/02
    • A robotic joint device (100) is provided, comprising - a first rigid element (1) with a first central axis (A1) and a second rigid element (2) with a second central axis (A2), - where the first rigid element (1) has a base member (10) and an elongated rod (15) which is rigidly attached to the base member (10), the rod (15) extending along the first central axis (A1) and being aligned with the second central axis (A2) when the joint device is in a central reference position, - where the first rigid element (1) has three or four first anchor points (P1) distributed over the periphery of the first rigid element (1), - where the second rigid (2) element has a corresponding number of second anchor points (P2) distributed over the periphery of the second rigid element (2), and each second anchor point (P2) is connected to a corresponding first anchor point (P1) by an actuated rope (Ra), - where the second rigid element (2) has at least three further anchor points (P3) distributed over the periphery of the second rigid element (2), and each further anchor point (P3) is connected to a tip (17) of the elongated rod (15) of the first rigid element (1) by a passive rope (Rp), - where the total number of actuated ropes (Ra) is three or four and the robotic joint device provides a total of two rotational degrees of freedom. Furthermore, a robot arm (200) with such a robotic joint device (100) is provided.