Patent ID: 6244742
Filing Date: 2001-06-12
Classification: G04C

Abstract:
A self-winding electric power generation watch with additional function, comprising:a ground plate with a periphery,a rotary weight rotationally disposed above the ground plate,an electric power generation motor for generating electric power by rotation of the rotary weight and having a bar shaped coil,an electric power generation train wheel connected between the rotary weight and the electric power generation motor for transmitting a rotation movement of the rotary weight to the electric power generation motor,a watch motor and a watch train wheel for time indication driven by the watch motor, said watch motor being driven by the electric power generated by the electric power generation motor and having a bar shaped coil,a storage battery for storing the electric power generated by the electric power generation motor, andan additional function motor and an additional function train wheel driven by the additional function motor actuated by the electric power generated by the electric power generation motor to provide an addition indication other than time, said additional function motor having a bar shaped coil,wherein in order to obtain a space for disposing the train wheels as much as possible at a center area, said bar shaped coils of the electric power generation motor, watch motor and additional function motor are arranged to surround the center area of the watch so that elongated side portions of the bar shaped coils of the three motors are arranged along the periphery of the ground plate, said electric power generation train wheel, watch train wheel and additional function train wheel being located in an area surrounded by the bar shaped coils.