Abstract: A dual-directionally operated dynamo set includes a housing, an actuating mechanism slidably mounted in the housing in a reciprocal manner, a dual-motion structure mounted in the housing and driven by the actuating mechanism, and a dynamo device mounted in the housing and driven by the dual-motion structure. Thus, the generator of the dynamo device may be operated successively to generate the electric power along dual directions in a reciprocal manner without stopping, thereby enhancing the generation efficiency of the electric power.

Abstract: A dual-directionally operated dynamo set includes a housing, an actuating mechanism slidably mounted in the housing in a reciprocal manner, a dual-motion structure mounted in the housing and driven by the actuating mechanism, and a dynamo device mounted in the housing and driven by the dual-motion structure. Thus, the generator of the dynamo device may be operated successively to generate the electric power along dual directions in a reciprocal manner without stopping, thereby enhancing the generation efficiency of the electric power.

Abstract: A dynamoelectric shoe includes a shoe sole having a heel portion formed with a compartment unit, a pressure-operated electric generator unit provided inside the compartment unit, and a rechargeable battery unit. The electric generator unit includes a hollow base, a pivot plate mounted pivotally in the hollow base, a volute spring biasing the pivot plate so as to position normally the latter in an upwardly inclining position, a driving gear secured to the pivot plate, a unidirectional gear set meshing with the driving gear, a speed increasing gear set driven rotatably by the unidirectional gear set, a press plate having a rear end mounted pivotally on an open top of the hollow base and a front end provided with a push plate which extends into the open top of the hollow base and which abuts against the pivot plate, and an alternator unit which has a rotor drive shaft that is driven by the speed increasing gear set.

Abstract: A shoe includes a shoe sole having an accommodating portion and several ventilation holes formed through the side wall of the accommodating portion. A pressure-operated electric generator is provided in the accommodating portion and produces a voltage signal when pressure is repeatedly applied on the shoe sole during use. A cooling apparatus is provided inside the accommodating portion and produces cold air when the electric generator supplies the voltage signal to the cooling apparatus so as to cool the foot of a user. An air permeable and waterproof cloth covers the top surface of the shoe sole and surrounds the electric generator and the cooling apparatus except for the top surfaces of the same. A middle sole covers the upper portion of the assembly of the shoe sole and the cloth and has an accommodating hole formed therethrough so as to allow the top surface of the cooling apparatus to extend through the accommodating hole. A shoe pad is disposed on the top surface of the middle sole.

Abstract: A dynamoelectric shoe has a shoe sole that confines a watertight compartment. A pressure-operated electric generator is provided inside the watertight compartment adjacent to a heel portion of the shoe sole. The electric generator produces a voltage signal when pressure is repeatedly applied on the shoe sole during use. An electrical socket is mounted on the shoe sole and a rechargeable battery cell is wired to the electrical socket and is charged by the voltage signal from the electric generator means. The dynamoelectric shoe can be used to operate a portable wireless telephone, a portable radio, a light device to aid the user at night, or a heating device to warm the user's foot during winter.