G11B3/0857

AUTOMATIC TONEARM LIFTER

An automatic tonearm lifter for use in a turntable that includes a main body and a tonearm rotatably mounted on the main body. The tonearm lifter includes a casing adapted to be fixedly mounted to the main body of the turntable, a lifting unit adapted to be mounted to the main body, adapted for supporting the tonearm, movable relative to the casing along a vertical axis, and non-rotatable about the axis relative to the casing, and a rotating unit including a threaded seat that is rotatable about the axis and that is threadably engaging the lifting unit, and a driving module that is connected to the threaded seat and that is operable to drive rotation thereof, thereby moving the lifting unit along the axis.

Automatic tonearm lifter

An automatic tonearm lifter for use in a turntable that includes a main body and a tonearm rotatably mounted on the main body. The tonearm lifter includes a casing adapted to be fixedly mounted to the main body of the turntable, a lifting unit adapted to be mounted to the main body, adapted for supporting the tonearm, movable relative to the casing along a vertical axis, and non-rotatable about the axis relative to the casing, and a rotating unit including a threaded seat that is rotatable about the axis and that is threadably engaging the lifting unit, and a driving module that is connected to the threaded seat and that is operable to drive rotation thereof, thereby moving the lifting unit along the axis.

Tonearm unit and playback device

A tonearm unit includes: an arm member having a tip to which a cartridge is attached; and a raising and lowering mechanism which raises and lowers the arm member with respect to a phonograph record along an axis. The raising and lowering mechanism includes: a cam base supporting the arm member; a ring cam provided to be rotatable about the axis with respect to the cam base; a first guide portion on the cam base, extending at an angle along a rotation direction of the ring cam; and a second guide portion on the ring cam, extending at an angle along the rotation direction so as to face the first guide portion. When the ring cam rotates with respect to the cam base, the cam base is raised and lowered with respect to the ring cam as a result of the second guide portion sliding along the first guide portion.

TONEARM UNIT AND PLAYBACK DEVICE
20200058321 · 2020-02-20 ·

A tonearm unit includes: an arm member having a tip to which a cartridge is attached; and a raising and lowering mechanism which raises and lowers the arm member with respect to a phonograph record along an axis. The raising and lowering mechanism includes: a cam base supporting the arm member; a ring cam provided to be rotatable about the axis with respect to the cam base; a first guide portion on the cam base, extending at an angle along a rotation direction of the ring cam; and a second guide portion on the ring cam, extending at an angle along the rotation direction so as to face the first guide portion. When the ring cam rotates with respect to the cam base, the cam base is raised and lowered with respect to the ring cam as a result of the second guide portion sliding along the first guide portion.

Record player with repeatable playback

The present invention relates to the technical field of record players, and in particular, to a record player with repeatable playback, including a fixing base; and a tone arm body, a tone arm shaft, a circuit control assembly, a lifting and sliding mechanism, and a horizontal swinging mechanism that are disposed on the fixing base respectively. An upper end of the tone arm shaft is connected to one end of the tone arm body, and the tone arm shaft is rotatably disposed on the fixing base. The circuit control assembly includes a support frame; and a control circuit board, an encoder component, a rotating arm positioning component, and an induction gear that are disposed on the support frame. A gear transmission structure is disposed on one side, close to the gear, of the rotating arm positioning component.