Motion generating mechanism for a music box

Details Motion generating mechanism for a music box Motion generating mechanism for a music box

1994-01-24

1995-06-13

Gellner, M. L.

Music

Instruments

Automatic

446298, 446303, 40455, 40411, G10F 106

Patent

active

054244854

ABSTRACT:
A motion generating mechanism particularly adapted for use in a music box is equipped with a vertical rod which can be actuated to swing back and forth and a pair of follower rods which are driven to rotate and repeatedly move up and down simultaneously. A shaft having one end engaged with the spring actuated rolling wheel of a music box is provided with an elliptic cam plate at each end thereof; and the bottom end of the follower rods having an abutment plate in contact with the elliptic cam plate are urged to move up and down and circularly. A rotation arm driven by the rolling wheel by way of a gear member and engaged with a swing follower having the vertical rod secured at one end is used to produce a pivotal swing motion of the vertical rod. Each abutment plate is provided with a recess which can be selectively engaged with a stop rod so as to restrain the follower rod from spinning and limit to move up and down only.

REFERENCES:
patent: 2840949 (1958-07-01), Faulkner
patent: 5226845 (1993-07-01), Wu

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