Robot Hand

Robot hand mimicking hand movements using a flexible base and rolling-contact joint links

This technology is a robot hand that mimics the bending, rotating, and tilting movements of human fingers using a flexible base, side connectors, and rolling-contact joint links.

Conventional rigid robot hands struggle to adapt flexibly when grasping irregular objects, and force and position control methods often lead to increased hardware complexity and weight.

This technology introduces a flexible first base and side connectors to provide degrees of freedom for tilting the rod links, while utilizing wire tension and a rolling-contact joint structure. This allows for the implementation of thumb rotation and complex bending of the joint links with a simple structure. It can be applied to prosthetic hands, service robots, and logistics gripping devices. Its flexible structure enables it to adapt to irregular objects while achieving a lightweight design, significantly broadening its range of applications.

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Key Features:

• A base unit comprising a first base made of flexible material to which rod links are coupled, and a second base coupled to one side of the first base.
• A plurality of joint link units rotatably connected to the base or rod link units to implement finger bending movements.
• A rotating link unit with one end rotatably connected to the base and the other end connected to the thumb joint link.
• A structure where the first base, to which the rod links are coupled, is made of flexible material and has a second base coupled to one side.

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This invention was developed with support from the Ministry of Science and ICT for the development of biomimetic bionic hand mechanisms.