Document Type and Number:
Japanese Patent JPS5257604
Kind Code:
U
Abstract:
On a phonographic disc player, a carriage for supporting a phonographic tone arm is movable along a pair of mutually parallel front and back guide rails and an elongated cover arranged between the guide rails while the position thereof normal to the moving direction being constrained in a precise manner through rolling meshing engagement of at least one of its bottom inside wheels with an associated guide rail, a bottom block extending downwardly from the carriage through the back rim horizontal slit in the cover back being operatively coupled to a servo-driving mechanism which is electrically connected to a given tone arm offset angle detecting circuit. Stabilized posture and movement of the carriage resulting from the above-described meshing engagement and relatively low positioned centers of gravity of the carriage and the tone arm and its related parts minimize undesirable tracking distortion and pressure on the stylus tip and minimum but necessary provision of the slit at a position invisible to the user minimizes possible entry of dust and other extraneous matter and enhances the external appearance of the record player.
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| JPS55108959 | AUTO-RETURN CONTROL UNIT |
Application Number:
JP14479175U
Publication Date:
April 26, 1977
Filing Date:
October 23, 1975
Export Citation:
International Classes:
G11B3/085; G11B3/36; (IPC1-7): G11B3/38
Domestic Patent References:
| JPS4026596Y1 | 1965-09-08 |