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US 7,086,071 B2Granted
Spring-suspension magnetically stabilized pick-up arm
OwnerFrank Schröderinventor
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OwnerFrank Schröderinventor
Estimating the term…
The invention relates to a pick-up arm system for the reproduction or replay of records comprising a pick-up arm chassis and a pick-up arm tube. The torsion element suspension of the pick-up arm is axially stabilized by means of cylindrical permanent magnets which are arranged in a vertical direction and have opposite polarities, said elements forming a rotating bearing or a pivot. According to the invention, the torsion element runs in a congruent manner with respect to the vertical axis of rotation through the horizontal point of rotation of the receiving element for the tube of the pick-up arm. The lower part of the torsion element is connected to a permanent magnet which is connected to the receiving element for the pick-up arm or tube and the upper part of the torsion element is fixated attached to the upper chassis of the pick-up arm. A second permanent magnet or otherwise attached of opposite polarity is fixated in the lower chassis of the pick-up arm in a perpendicular position below said permanent magnet.
A pick-up arm system for the replay of long-playing records comprising a pick-up arm chassis, having an upper and lower extension, and a pick-up arm tube, having a receiving element moveably suspended from said chassis by a pivotable torsion element, said receiving element being stabilized by first and second cylindrical magnets of opposing polarity, wherein said torsion element is substantially congruent to the vertical axis of rotation of said receiving element, one end of said torsion element positioned by said first magnet, said first magnet being set into said receiving element, the opposing end of said torsion element being attached to said upper extension of said chassis;
Dependencies are inferred from the claim text.