Abstract: A finger-gesticulation hand device includes a base frame representing a metacarpal part of the human hand, and at least three digits mounted on the base frame and appearing to be a thumb and at least two fingers. Each digit has at least two phalange portions respectively linked by two joints which permit a flexing movement of the phalange portions between extended and flexed positions. An actuating cord passes through each digit and is actuated by a solenoid actuator unit to pull the phalange portions of the respective digit to the flexed position. The hand device is simple in construction and capable of making hand gestures in a simple manner.

Abstract: A finger-gesticulation hand device includes a base frame representing a metacarpal part of the human hand, and at least three digits mounted on the base frame and appearing to be a thumb and at least two fingers. Each digit has at least two phalange portions respectively linked by two joints which permit a flexing movement of the phalange portions between extended and flexed positions. An actuating cord passes through each digit and is actuated by a solenoid actuator unit to pull the phalange portions of the respective digit to the flexed position. The hand device is simple in construction and capable of making hand gestures in a simple manner.

Abstract: A ball holding mechanism comprises a base with a central axis disposed from bottom to top with an urging block, an elastic element, and a stopping block. The surrounding of the base is pivotally provided with several holding arms, each of which has a transmission end and a holding end. The transmission end urges against the bottom surface of the urging block. By using the lever principle, the urging blocks are controlled by an adjusting mechanism to make a downward displacement along the central axis to push the transmission ends so that the holding ends perform a holding action while the elastic element keeps flexibility after the ball is held. A pivoting base can rotate in the horizontal and longitudinal direction on the holding arm through two horizontal and longitudinal shafts pivotally mounted on the holding end.

Abstract: A transmission component with a functional structure has a linear or crossed shaft body, a transmission structure integrally formed on the shaft body and extending in a radial direction; a sensor matching structure and a shaft matching structure formed on the shaft body so that a sensor and a bearing may be conveniently assembled on the shaft body and the size of the transmission component can be miniaturized, and a reinforcing rod which may be inserted into the shaft body in an axial direction to enhance the structure intensity of the shaft body.