Patent ID: 8267876

Claim:
A walking assist device comprising a load transmit portion, a leg link connected to the load transmit portion and provided with at least one joint portion, a driving source provided in the leg link for driving the joint portion, and an electric component configured to control the driving source, said walking assist device configured to support at least a partial weight of a user with the leg link through the load transmit portion by operating the driving source to drive the joint portion to make the leg link push up the load transmit portion, wherein the leg link is at least partially constituted of a hollow link member having an internal space; the electric component includes at least one of a battery, a power source plate, a controller, a signal amplifier, and a motor driver, and at least one of the battery, the power source plate, the controller, the signal amplifier, and the motor driver is housed in the hollow link member, and a whole part of the electric component is housed in the hollow link member and exposed in the internal space of the hollow link member; and a heat transfer member thermally connects the hollow link member and the at least one of the battery, the power source plate, the controller, the signal amplifier, and the motor driver housed in the hollow link member.