Height adjusting device for a tone arm
AssigneeYa Horng Electronic Co., Ltd.
InventorJ. Y. Huang
Life of this patent
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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.
Claims6
A height adjusting device for a tone arm of a record player comprising:
- an outer annular base provided stationary and having a center hollow space;
- an inner annular base fitted in said outer annular base, rotatable to the left or to the right relative to said outer annular base, and impossible to move up or down;
- a seat having its bottom fitted in said inner annular base, said tone arm is fixed on an upper surface of said seat;
- wherein
- said inner annular base is provided with sloped slots spaced apart in its vertical wall, said sloped slots sloping in the same direction, said seat having projections spaced apart on its vertical wall to respectively fit in said sloped slots of said inner annular base, said rotation of said inner annular base moving said seat up and down together with said tone arm by engagement of said projections with said sloped slots, thereby facilitating handling of said height adjusting device.
Dependencies are inferred from the claim text.