Power external output mechanism in music box

Details Power external output mechanism in music box Power external output mechanism in music box

1997-08-01

1999-03-23

Shoop, Jr., William M.

Music

Instruments

Automatic

84 942, 84 952, G10F 106

Patent

active

058862714

ABSTRACT:
A power external output mechanism in muic box comprising a music drum in which a power external output shaft (4) is inserted thereto and integrated with each other in the axial and rotary directions, wherein an engaging means is provided in a drum body (1) of muxic box, by which the drum and the external output shaft are engaged with each other so as to prevent the external output shaft to be break away therefrom, said engaging means is an elastic leg abuttal (5) with a type of thin wall which is formed on an external end plate (2) of the drum and extended inward in aixal direction of the shaft. An inner flange (10) formed on a free end of the leg abuttal (5) and an inner cave annular groove (11) formed on the peripheral surface of the shaft (4) are engaged with each other to form an interlock in axial drection. The inner end plate (3) and an end (9) of the external output shaft (4) are fitted with each other to form a connection in the direction of rotation. The fixation of power output shaft in accordance with the invention is very firm and reliable.

REFERENCES:
patent: 4557173 (1985-12-01), Isaka
patent: 4570520 (1986-02-01), Deutsch et al.
patent: 4570524 (1986-02-01), Isaka et al.

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