Patent ID: 6154435
Filing Date: 2000-11-28
Classification: G11B

Abstract:
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; whereinsaid 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.