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US 4,305,066 AGranted
Motor driven bell sound generating system
AssigneeKobishi Electric Co., Ltd.
InventorShigeo Shimoya
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AssigneeKobishi Electric Co., Ltd.
InventorShigeo Shimoya
Estimating the term…
A motor driven bell sound generation system is constructed such that rotational movement of a motor is converted into reciprocative hammering operation or single directional striking operation of hammer means via a crank means, driving means with radial protrusions on the outer periphery thereof or lever mechanism, whereby the required quality and volume of bell sounding is produced. A resilient means comprising a coil spring-leaf spring combination or single coil spring may be arranged for conversion of the rotational movement of the motor into the hammering or striking operation of the hammer means between the motor and the hammer means. Rotational movement of the motor may be converted into a reciprocative striking operation of the hammer means via a combination of driving member having ratchet on the outer periphery and a leaf spring. Alternatively rotational movement of the motor may be converted into swinging operation of the hammering arm or into reciprocative striking operation of the hammering rod via a worm gear and worm wheel mechanism and lever member.
A motor driven bell sound generating system comprising a motor, a worm gear secured to a rotation shaft of said motor, a worm wheel in engagement with said worm gear, said worm wheel being provided with a driving pin securely disposed at a predetermined radial distance from a rotation shaft of the worm wheel, an arm member in the form of twin arm having hammer means integrally provided at the both ends thereof, arranged rotatably about a rotation axle located substantially at the center of a bell gong, said arm member being integrally provided with a hook member extending at a right angle thereto, which is formed with an elongated slit within which said driving pin is located for engagement therewith.
A motor driven bell sound generating system comprising a motor, a worm gear secured to a rotation shaft of said motor, a worm wheel in engagement with said worm wheel, said worm wheel being provided with an engagement pin securely disposed at a predetermined radial distance from a rotation shaft of the worm wheel, a lever means having outwardly extending elongated slits of different lengths at the both sides thereof, arranged rotatably about a rotation axle located substantially at the center of a bell gong, said engagement pin coming in engagement with said lever means within the longer one of said elongated slits, a hammering rod reciprocatively supported by means of support members, extending substantially across the center of the bell gong at a right angle to said lever means, said hammering rod being provided with a driving pin securely disposed at the middle thereof, said driving pin coming in engagement with said lever means within the shorter one of said elongated slits, and hammer means connected to said hammering rod at the both ends thereof via a coil spring.
A motor driven bell sound generating system comprising a base;
A motor driven bell sound generating system comprising a base;
A motor driven bell sound generating system comprising a base;
Dependencies are inferred from the claim text.