Patent classifications
G11B3/08
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
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.
Headshell and tonearm for mounting cartridge of audio turntable and audio turntable comprising same
According to an embodiment, a headshell connecting a cartridge and a tonearm of an audio turntable includes a first part connected with the cartridge, a second part connected with the tonearm, and a joint axially and pivotally coupling the first part and the second part. The second part includes a first tension adjusting assembly of a first ball, a first spring, and a first tension adjuster and a second tension adjusting assembly of a second ball, a second spring, and a second tension adjuster, wherein the first tension adjusting assembly and the second tension adjusting assembly are formed in the second part and in parallel with each other.
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.
Manual to automatic turntable player conversion
A manual to automatic record player conversion includes a base unit and a blade that attaches to the tone arm. The base unit includes a movable a piston that engages the blade in order to move the tone arm upward, to specified locations on the record, or to the rest position. The position of the blade is detected by locating a reflective strip on the blade using an optical sensor, so that the piston remains positioned under the blade. The piston uses a tapered cone structure to engage a slot in the blade, compensating for any inaccuracies in position of the piston with respect to the blade. The base unit may be structured to interact with a remote control through Bluetooth or other wireless connectivity. The remote control may be a software program or app that is operated through a smart phone, tablet computer, or other computer.
Automatic record player
A novel automatic record player for playing a phonograph record includes a base, a turntable, an upper hub, a lower hub, a tonearm, a drive unit, a pinion, a control cam, a main arm, an auxiliary arm, first and second micro-switches, a clutch member, a first clutch actuating member, a switch activating member, an actuating pin, a synchronizing unit, a position guide, an angular position setting unit, and an elongated member. With the provision of the angular position setting unit, when the clutch member is actuated by the first clutch actuating member, a forward free end of the tonearm can be more precisely positioned on an outermost groove of the phonograph record.
Apparatus for varying the pitch of audible tones driven by a turntable
A musical instrument adapted for use with a turntable. Said apparatus uses a rotary pulse generator to create musical tones when in contact with the rotating platter of the turntable. Said apparatus mounts to the turntable in such a way that a rotary pulse generator rotates when in contact with the rotating turntable platter. As the radius at which the rotary pulse generator contacts the turntable platter is increased the frequency of the tone produced increases proportionally, likewise when the radius at which the rotary pulse generator contacts the turntable platter is decreased the frequency of the tone produced decreases proportionally allowing a range of pitches to be sounded.
Apparatus for varying the pitch of audible tones driven by a turntable
A musical instrument adapted for use with a turntable. Said apparatus uses a rotary pulse generator to create musical tones when in contact with the rotating platter of the turntable. Said apparatus mounts to the turntable in such a way that a rotary pulse generator rotates when in contact with the rotating turntable platter. As the radius at which the rotary pulse generator contacts the turntable platter is increased the frequency of the tone produced increases proportionally, likewise when the radius at which the rotary pulse generator contacts the turntable platter is decreased the frequency of the tone produced decreases proportionally allowing a range of pitches to be sounded.
APPARATUS FOR VARYING THE PITCH OF AUDIBLE TONES DRIVEN BY A TURNTABLE
A musical instrument adapted for use with a turntable. Said apparatus uses a rotary pulse generator to create musical tones when in contact with the rotating platter of the turntable. Said apparatus mounts to the turntable in such a way that a rotary pulse generator rotates when in contact with the rotating turntable platter. As the radius at which the rotary pulse generator contacts the turntable platter is increased the frequency of the tone produced increases proportionally, likewise when the radius at which the rotary pulse generator contacts the turntable platter is decreased the frequency of the tone produced decreases proportionally allowing a range of pitches to be sounded.