Height adjusting device for a tone arm

Details Height adjusting device for a tone arm Height adjusting device for a tone arm

1998-12-01

2000-11-28

Cao, Allen T.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Access of multiple storage elements

G11B 1704

Patent

active

061544353

ABSTRACT:
A height adjusting device for a tone arm includes a stationary outer annular base, an inner annular base fitted rotatably but not moving up or down in the outer annular base, and a seat having the bottom fitted in the inner annular base and a tone arm fixed on the seat. The inner annular base has some sloped slots in the vertical wall. The sloped slots slopes in the same direction. The seat has projections on the vertical wall to fit and move in the sloped slots of the inner annular base. Then the inner annular base is manually rotated by a connector protruding out of a long slot of the outer annular base, causing said seat with the tone arm moved up or down by the projections moving back or forth in the sloped slots.

REFERENCES:
patent: 4170360 (1979-10-01), Ohsawa
patent: 5226032 (1993-07-01), Ikedo et al.

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