There is provided a multi-finger hand device which can perform smooth
bending and stretching operations of finger mechanisms in holding work of
an object or the like while reducing the number of actuators as driving
sources of the bending and stretching operations of the finger
mechanisms. Wires 29a and 29b, and wires 30a and 30b extending from the
finger mechanisms 2b to 2e biased to the stretching side by springs 16 or
the like are joined to joining element 32 and 33, respectively. A wire 31
provided extensionally from the finger mechanism 2a is wound onto a
pulley 36 and drawn from the base side of the hand 3. The joining
elements 32 and 33 are rockably held by a holding element 43 via spindles
44 and 45. The holding element 43 is provided movably and rockably around
a spindle 42. The pulley 36 is held by the holding element 43 and moves
together with the holding element 43. By pulling the wire 31, the bending
operations of the finger mechanisms 2a to 2e are performed collectively.
During bending and stretching operations of the finger mechanisms 2a to
2e, even if any of the finger mechanisms touches an object or the like
and is disabled to move, the bending and stretching operations of the
other finger mechanisms can be performed.