Finger-gesticulation hand device

A finger-gesticulation hand device, comprising:

• a base frame having a major wall which represents a metacarpal part of the human hand and which defines an upright plane;
• five digits representing a thumb and four fingers of the human hand, each having a metacarpal portion which is mounted on said major wall, a proximate-and-intermediate phalange portion which is linked to said metacarpal portion by a first joint that is disposed to permit turning of said proximate-and-intermediate phalange portion relative to said metacarpal portion between flexed and extended positions, a first biasing member which is disposed to bias said proximate-and-intermediate phalange portion toward the extended position, a distal phalange portion which is linked to said proximate-and-intermediate phalange portion by a second joint that is disposed to permit turning of said distal phalange portion relative to said proximate-and-intermediate phalange portion between flexed and extended positions, and a second biasing member which is disposed to bias said distal phalange portion toward the extended position;
• five actuating cords, each having a first end secured to said distal phalange portion of a respective one of said digits, and passing through said proximate-and-intermediate phalange portion and said metacarpal portion to terminate at a second end that is disposed adjacent to said base frame;
• a first solenoid actuator unit disposed on said base frame, and having a first solenoid member and a first plunger to which said second ends of three of said actuating cords are fastened, said first plunger being coupled with said first solenoid member such that, when said first plunger is activated to move to an activated position, said distal and proximate-and-intermediate phalange portions of three corresponding ones of said digits which represent respectively the thumb and two of the fingers are pulled to be displaced to the flexed positions;
• and
• a second solenoid actuator unit disposed on said base frame, and having a second solenoid member and a second plunger to which said second ends of the other two of said actuating cords are fastened, said second plunger being coupled with said second solenoid member such that, when said second plunger is activated to move to an activated position, said distal and proximate-and-intermediate phalange portions of the other two corresponding ones of said digits which represent respectively the other two of the fingers are pulled to be displaced to the flexed positions.