ROBOT HAND AND ROBOT SYSTEM

A robot hand and system are mounted with a plurality of actuators and reduced in size and weight while having both a gripping force required for heavy work and controllability required for light work. The robot hand includes a finger part and a driving unit. The driving unit includes: a plurality of driving actuators; and a driving force transmission part that transmits driving forces of the plurality of driving actuators to the finger part. The driving force transmission part includes: a disconnection mechanism that selectively switches between a coupling state in which some of the plurality of driving actuators and the finger part are coupled and a release state in which the coupling between the some of the driving actuators and the finger part is released to switch between transmission of a driving force of the some of the driving actuators to the finger part and cut-off thereof.