Flywheel for small size tape recorder
AssigneeOlympus Optical Co., Ltd.
InventorAkira Osanai
Life of this patent
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Abstract
A flywheel for small size tape recorders is disposed in peripheral frictional engagement with an output wheel of a motor for rotation in the opposite direction from the latter. The ratio of moment of inertia of the rotating motor portion about the output shaft to the moment of inertia of the flywheel about its support shaft is chosen equal to the reciprocal of the ratio of their angular velocities, thereby causing a substantial balancing of the angular momentum of each other.
Claims5
A flywheel for a small size tape recorder, the flywheel being directly engaged at its periphery by an output wheel of a motor, the output wheel rotating about an axis which is substantially parallel to the axis of rotation of the flywheel so that upon rotation of the output wheel in one direction the flywheel rotates in an opposite direction, the flywheel being constructed to satisfy the following relationship;
- I.sub.F =I.sub.M .times.n
- where I.sub.M represents the moment of inertia of the motor about its output shaft, I.sub.F the moment of inertia of the flywheel, and n the ratio W.sub.M /W.sub.F wherein W.sub.M and W.sub.F represent the angular velocity of the output shaft of the motor and the flywheel, respectively, whereby the angular momentum of the flywheel substantially balances the angular momentum of the output wheel.
Dependencies are inferred from the claim text.