Liquid Floating Tone Arm Device

Abstract

A liquid floating tone arm device for reading records on a turntable comprises a base 10, a liquid tank 20 attached to the base, positioned above the record, extending in a linear direction, and having an internal storage space for storing a working fluid, and a cartridge assembly 30 that floats in the liquid tank via a floating block, with a reading section 32 and a counterweight section 33 of the cartridge assembly located on either side of the liquid tank. The audio track on the record is read by contact with a record stylus attached to the reading section, and as the stylus moves from the outer ring to the inner ring of the record, the cartridge assembly is linked to the liquid tank and floats in the liquid tank, moving linearly and freely. [Effect] The contact angle between the record needle and the audio track can be kept parallel, allowing for more accurate reading of audio signals.

Description

[Technical Field]

[0001] The liquid floating tone arm device of the present invention is a device used to play music along with a turntable or record. [Background technology]

[0002] There are two types of tone arms in conventional record players: balanced tone arms and air-floating tone arms.

[0003] A balanced tone arm has a fixed fulcrum and swings the tone arm to keep the stylus in constant contact with the audio track on the record. However, this causes the angle between the tone arm and cartridge to change during music playback, making it impossible to maintain a parallel angle between the stylus and the audio track, which affects the sound quality of the music being played.

[0004] On the other hand, an air-floating tone arm includes an air compressor, an air tube, and a tube sleeve. The air tube is a round tube with many small holes on its surface that is placed horizontally above the record. The tube sleeve is fitted over the air tube and houses the cartridge. Air from the air compressor enters the air tube and flows out through the fine holes. This air flow reduces friction between the sleeve and the air tube, allowing the tube sleeve to move smoothly up and down and sideways on the air tube, so that the cartridge's record needle can contact the audio track on the record while maintaining a parallel angle to the audio track.

[0005] However, air-floating tone arms still have the following drawbacks: First, air compressors make noise when they are running, and it is quite costly to manufacture a quiet air compressor. Second, in order to allow the tube sleeve to move smoothly on the air tube, a small and precise gap must be maintained between the air tube and the tube sleeve, which makes the air tube and the tube sleeve expensive and difficult to manufacture. Thirdly, the air flow causes rapid, minute vibrations in the tube sleeve, which in turn vibrates the cartridge on the tube sleeve, affecting the reading of audio signals and therefore the quality of the reproduced sound. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Taiwan Patent No. TW I839033 Publication Summary of the Invention [Problem to be solved by the invention]

[0007] The object of the present invention is to provide a liquid floating tone arm device that can solve the problems of conventional balanced tone arms, such as the difference in angle between the stylus and the audio track, which affects sound quality when the tone arm is oscillated to keep the stylus in constant contact with the audio track on the record, and the problems of air floating tone arms, such as high cost, difficulty in manufacturing, and vibrations that affect sound quality. [Means for solving the problem]

[0008] To achieve the above object, the present invention provides a liquid floating tone arm device for reading a record on a turntable, comprising: a base adjacent to the turntable; a liquid tank provided on the base, positioned above the turntable and the record with a gap between it and the record, the liquid tank extending in a linear direction and having an elongated shape, an internal storage space for storing a working fluid, and an opening formed at the top thereof that communicates with the storage space; a cartridge assembly including: a floating block accommodated in an accommodation space of the liquid tank and having a specific gravity smaller than that of the working fluid; and a bracket that passes through an opening of the liquid tank and is connected to the floating block, thereby floating on the working fluid in the liquid tank, and that has a reading unit and a counterweight unit at both ends, the reading unit and the counterweight unit are located on both sides of the liquid tank, the cartridge assembly floats and oscillates up and down in the working fluid of the liquid tank, and moves along the linear direction; the reading unit contacts the record and reads the audio track of the record. Liquid floating tone arm device.

[0009] The liquid floating tone arm device of the present invention can be used by being mounted on a turntable to play music. With this configuration, the working fluid is filled into the storage space of the liquid tank, so that the cartridge assembly floats in the working fluid of the liquid tank via the floating block.Furthermore, by attaching the cartridge to the reading unit and bringing the record needle of the cartridge into contact with the audio track of a record on the turntable, music can be played through external audio equipment. As the record rotates, the cartridge assembly moves in a straight line from the outer periphery to the inner periphery of the record, thereby maintaining a parallel contact angle between the cartridge stylus and the audio track on the record. Therefore, the record needle of the cartridge can read the signal more appropriately, ensuring the quality of the sound being reproduced.

[0010] Furthermore, since the cartridge assembly floats in the working fluid via the floating block, the working fluid does not vibrate, stabilizing the floating block and isolating vibrations caused by external forces, thereby effectively improving the sound quality of the music being played. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a schematic perspective view of a preferred embodiment of a liquid floating tone arm device according to the present invention; FIG. [Figure 2] 1 is a partially exploded schematic view of a liquid floating tone arm device according to the present invention; [Figure 3] FIG. 10 is a perspective schematic view of the liquid floating tone arm device according to the present invention, seen from another perspective. [Figure 4] FIG. 2 is a schematic side view, partially in cross section, of a cartridge assembly in the liquid floating tone arm device according to the present invention. [Figure 5] FIG. 2 is a perspective schematic view of a cartridge assembly in the liquid floating tone arm device according to the present invention. [Figure 6] FIG. 2 is a schematic side view, partially in cross section, of a cartridge assembly in the liquid floating tone arm device according to the present invention. [Figure 7] FIG. 2 is a front plan view showing a cartridge assembly in the liquid floating tone arm device according to the present invention. [Figure 8] 5 is a partial cross-sectional schematic front view of the liquid floating tone arm device according to the present invention taken along the section AA in FIG. 4. FIG. [Figure 9] 1 is a schematic side plan view showing a state in which a liquid floating tone arm device according to the present invention is used in combination with a turntable. [Figure 10] FIG. 4B is a schematic front cross-sectional view taken along the line B-B in FIG. 4B, showing a state in which the liquid floating tone arm device according to the present invention is used in combination with a turntable. [Figure 11]1 is a schematic perspective plan view showing one embodiment of a base in a liquid floating tone arm device according to the present invention. FIG. [Figure 12] 1 is a schematic top plan view showing one embodiment of a base in a liquid floating tone arm device according to the present invention. FIG. [Figure 13] FIG. 10 is a schematic perspective view showing another embodiment of the base of the liquid floating tone arm device according to the present invention. [Figure 14] FIG. 10 is a schematic front plan view showing another embodiment of the base of the liquid floating tone arm device according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] 1 to 3 and 9 show preferred embodiments of a liquid floating tone arm device according to the present invention, which is used to read a record 51 on a turntable 50, and includes a base 10, a liquid tank 20, and a cartridge assembly 30.

[0013] As shown in Figure 9, the base 10 is adjacent to the turntable 50, and in one embodiment of the base 10, as shown in Figures 1 to 3, the base 10 has a connecting part 11 that is located at the top of the base 10 and can rotate horizontally.

[0014] As shown in Figures 1 to 4, the liquid tank 20 is provided on the base 10, is positioned above the turntable 50 and the record 51 with a gap between them, and has an elongated shape extending in a linear direction, has a storage space 21 formed therein for storing a working fluid, and has an opening 22 at the top that communicates with the storage space 21, and water or other liquids with good fluidity can be used as the working fluid. 4 and 8 show the working fluid surface 70. As shown in Figures 11 and 12, a liquid reservoir 20 is disposed above the back of the turntable 50 and record 51 to facilitate record replacement.

[0015] As shown in Figures 4 to 7, the cartridge assembly 30 is housed in the storage space 21 of the liquid tank 20 and includes a floating block 31 whose specific gravity is less than that of the working fluid, and a bracket 34 which passes through the opening 22 of the liquid tank 20 and is connected to the floating block 31, thereby floating on the working fluid in the liquid tank 20, and which has a reading unit 32 and a counterweight unit 33 on both ends, the reading unit 32 and the counterweight unit 33 being located on either side of the liquid tank 20, and as the cartridge assembly 30 floats, it oscillates up and down in the working fluid in the liquid tank 20 and moves in a linear direction, and the reading unit 32 comes into contact with the record 51 to read the audio track of the record 51. In this embodiment, the cartridge assembly 30 can move toward or away from the base 10 by moving in a linear direction.

[0016] As shown in Figures 8 and 9, the liquid floating tone arm device of the present invention can be used in conjunction with a turntable 50 to play music. The storage space 21 of the liquid tank 20 is filled with working fluid, the cartridge assembly 30 floats in the liquid tank 20 via the floating block 31, the cartridge 60 is attached to the reading unit 32, and music can be played through an external audio device by contacting the record needle of the cartridge 60 with the audio track of the record 51 on the turntable 50. In other words, the cartridge assembly 30 floats in the liquid tank 20 via the floating block 31 and moves in a linear direction, and as the record 51 rotates, the cartridge assembly 30 moves from the outer periphery of the record 51 to the inside, so that the contact angle between the record needle of the cartridge 60 and the audio track on the record 51 can be maintained parallel. Therefore, the record needle of the cartridge 60 can read the signal more appropriately, ensuring the quality of the sound of the music being played. In addition, the liquid floating tone arm device is less costly than the traditional air floating tone arm and can read signals better.

[0017] As shown in Figures 5 to 7, a connection part 311 is provided at the top of the floating block 31, and the bracket 34 is detachably connected to the connection part 311, so that the floating block 31 is positioned between the reading part 32 and the counterweight part 33. According to this configuration, a user can use multiple brackets 34, attach different cartridges 60 to the reading units 32 of different brackets 34, and adjust the counterweight units 33 of the different brackets 34 to match the corresponding cartridges 60. Furthermore, the quick detachable configuration between the bracket 34 and the connection portion 311 of the floating block 31 allows the user to quickly replace a different cartridge 60.

[0018] Furthermore, as shown in Figures 3 and 4, a signal transmission section 23 extending in a linear direction is provided outside the liquid tank 20, one end of which is electrically connected to the connection section 311 via a signal cord, and the other end of which is electrically connected to an external signal amplifier. This simplifies the wiring on the cartridge assembly 30, thereby reducing the resistance caused by the wiring.

[0019] As shown in Figures 5 and 7, the counterweight portion 33 of the cartridge assembly 30 includes an adjustment hole 331 and a counterweight 332. The adjustment hole 331 is formed in the bracket 34 so as to extend toward the reading portion 32, and the counterweight 332 is provided in the adjustment hole 331. By adjusting the position of the counterweight 332 on the adjustment hole 331, the weight of the reading portion 32 can be balanced. Furthermore, when replacing the cartridge 60 on the cartridge assembly 30, the balance of the cartridge assembly 30 can be restored by adjusting the counterweight portion 33.

[0020] As shown in Figures 3, 4 and 8, in one embodiment of the liquid floating tone arm device of the present invention, the liquid tank 20 has a resistance magnet set 24, which is provided on the front wall of the liquid tank 20 and extends in a linear direction, and the direction of the magnetic force is directed toward a floating block 31 in the liquid tank 20, and the floating block 31 of the cartridge assembly 30 has at least one repulsive magnet 312, and the at least one repulsive magnet 312 magnetically repels the corresponding surface of the resistance magnet set 24. When the cartridge assembly 30 moves along the liquid tank 20, the resistance magnet set 24 magnetically repels at least one repulsive magnet 312 on the floating block 31, so that when the cartridge 60 of the cartridge assembly 30 is pulled by the audio track on the record 51, the friction generated by the cartridge assembly 30 against the inner wall surface of the liquid tank 20 due to the pulling can be reduced, thereby maintaining smooth linear movement of the cartridge assembly 30. In another embodiment, the liquid tank 20 has two resistance magnet sets 24, which are respectively provided on the front and rear walls of the liquid tank 20, and at least one repulsion magnet 312 therein magnetically repels the corresponding surfaces of the two resistance magnet sets 24, thereby achieving the same effect of maintaining smooth movement of the cartridge assembly 30.

[0021] As shown in Figures 1, 2, 9 and 10, the liquid floating tone arm device has a cartridge adjustment rod 40, which is movably mounted in the liquid tank 20 and is operated so as to come into contact with the cartridge assembly 30, thereby swinging the cartridge assembly 30 and lifting the reading section 32.

[0022] In use, the user can electrically actuate the cartridge adjustment rod 40 as described below. For example, as shown in Figures 1 to 3 and 10, the liquid floating tone arm device has an adjustment rod lifting assembly 41, which is provided in the liquid tank 20 and has an adjustment rod lifting motor 411 connected to the cartridge adjustment rod 40, and two switch units 412 provided in the liquid tank 20 and electrically connected to the adjustment rod lifting motor 411, respectively, and the adjustment rod lifting motor 411 is controlled to swing the cartridge adjustment rod 40 up and down, and the operation of the adjustment rod lifting motor 411 is stopped by bringing the cartridge adjustment rod 40 into contact with one of the two switch units 412. In this way, by electrically controlling the cartridge adjustment rod 40, the convenience of using the present invention can be improved. The adjusting rod lifting motor 411 is connected to an external power source or is driven by power supplied via a battery 413 attached to the liquid tank 20 .

[0023] Furthermore, the adjusting rod lift motor 411 can be controlled in different ways. In one embodiment of the present invention, as shown in FIG. 3, the adjusting rod lift assembly 41 includes a control button group 414, and the up button and down button of the control button group 414 are electrically connected to the adjusting rod lift motor 411, respectively, to control the adjusting rod lift motor 411. Therefore, the user can press a button in the control button group 414 to control the adjustment rod lifting motor 411 and swing the cartridge adjustment rod 40 up and down, thereby moving the reading unit 32 up and down.

[0024] As shown in Figures 4, 6, and 8, the adjusting rod lifting assembly 41 includes a trigger portion 415 and a sensor switch 416, the trigger portion 415 being mounted on the floating block 31, and the sensor switch 416, which may be a reed switch or a Hall sensor, is mounted at one end of the liquid tank 20 far from the base 10 and is electrically connected to the adjusting rod lifting motor 411. According to this, when the trigger portion 415 approaches the sensor switch 416, the sensor switch 416 is triggered to control the adjustment rod lifting motor 411, thereby swinging the cartridge adjustment rod 40 upward. When the cartridge assembly 30 moves to the end position of the record 51, the trigger portion 415 on the floating block 31 triggers the sensor switch 416, which automatically activates the adjusting rod lifting motor 411, thereby raising the cartridge adjusting rod 40, raising the reading portion 32 and moving it away from the record 51, thereby stopping the music playback.

[0025] As shown in Figures 2, 3, and 6, in one embodiment of the base 10, the base 10 includes an outer tube 12, an inner tube 13, and a connecting lid 14, the outer tube 12 is arranged vertically, the inner tube 13 extends within the outer tube 12 and is rotatable relative to the outer tube 12, the connecting lid 14 is arranged on the inner tube 13 and covers the top of the outer tube 12, and the connecting portion 11 is located on the top of the connecting lid 14.

[0026] The height of the base 10 can be adjusted to suit different turntables. For example, in another embodiment of the base 10, as shown in Figures 11 and 12, the height of the base 10 is relatively low, but it is sufficient that the liquid tank 20 can be positioned above the record 51 and the reading unit 32 can be brought into contact with the record 51. In this embodiment, the liquid reservoir 20 is positioned above the turntable 50 and the backside of the record 51, and the bracket 34 is lengthened so that the cartridge 60 on the reader 32 always comes into contact with the audio track of the record 51. By positioning the liquid tank 20 above the back side of the record 51, the user can easily replace the record 51, improving convenience.

[0027] When the user wants to change the record 51 or stop using the liquid floating tone arm device, the liquid tank 20 can be pressed to rotate the liquid tank 20 horizontally relative to the base 10, thereby moving the cartridge assembly 30 away from the record 51 and allowing the record 51 to be changed. Furthermore, the liquid vessel 20 is connected to the connecting lid 14, which is fastened to the top of the inner pipe 13, so that the liquid vessel 20 is fixedly connected to the inner pipe 13. Since the inner tube 13 extends inside the outer tube 12, the stability of the connection between the liquid vessel 20 and the base 10 is improved, and the angle of the liquid vessel 20 relative to the base 10 can be freely adjusted.

[0028] As shown in Figures 13 and 14, in another embodiment of the base 10, the base 10 is of a hanging type, and includes a hanging frame 15 positioned above and spanning the turntable 50, a lifting rod 16 positioned between the hanging frame 15 and the liquid tank 20, a lifting interlocking rod 161 provided on the hanging frame 15, two interlocking links 171 passing through the hanging frame 15 and connecting the lifting rod 16, the lifting interlocking rod 161, and both ends of the liquid tank 20, a winding motor 18, one end of which is connected to the lifting rod 16, The other end of the lifting rod 16 has two hanging wires 17 that extend along the hanging frame 15 and are connected to a winding motor 18 located below the turntable 50. The winding motor 18 feeds or winds up the two hanging wires 17 by rotating forward or backward, thereby lowering or raising the lifting rod 16 and the liquid tank 20. When the liquid tank 20 lowers, the lifting linkage rod 161 comes into contact with the hanging frame 15 and stops the liquid tank 20 at a predetermined position, causing the reading unit 32 to come into contact with the record 51. With such a hanging base 10, the liquid reservoir 20 can be positioned above the record 51 in the same manner. [Explanation of symbols]

[0029] 10 base 11 Connecting part 12 Outer tube 13 Inner tube 14 Connecting lid 15 Hanging Frame 16 Lifting rod 161 Lifting linkage rod 17 Hanging wire 171 Related Links 18 Winding motor 20 Liquid tank 21 Containment Space 22 Aperture 23 Signal transmission section 24 Resistive Magnet Set 30 Cartridge Assembly 31 Floating Block 311 Connection 312 Repulsive Magnet 32 Reading unit 33 Counterweight section 331 Adjustment hole 332 Counterweight 34 Bracket 40 Cartridge adjustment rod 41 Adjustment Rod Lift Assembly 411 Adjustment rod lift motor 412 Switch section 413 Battery 414 Control Buttons 415 Trigger section 416 Sensor Switch 50 Turntable 51 records 60 cartridges 70 Surface of working fluid

Claims

1. 1. A liquid floating tone arm device for reading a record on a turntable, comprising: a base adjacent to the turntable; a liquid tank provided on the base, positioned above the turntable and the record with a gap between it and the record, the liquid tank extending in a linear direction and having an elongated shape, an internal storage space for storing a working fluid, and an opening formed at the top thereof that communicates with the storage space; a cartridge assembly including: a floating block accommodated in an accommodation space of the liquid tank and having a specific gravity smaller than that of the working fluid; and a bracket that passes through an opening of the liquid tank and is connected to the floating block, thereby floating on the working fluid in the liquid tank, and that has a reading unit and a counterweight unit at both ends thereof; Equipped with the liquid tank has a resistance magnet set provided on a front side wall of the liquid tank and extending along the linear direction; the floating block of the cartridge assembly has at least one repulsive magnet, and the at least one repulsive magnet is magnetically repulsive to a corresponding surface of the resistive magnet set; the reading unit and the counterweight unit are located on both sides of the liquid tank, the cartridge assembly floats and oscillates up and down in the working fluid of the liquid tank, and moves along the linear direction; the reading unit contacts the record and reads the audio track of the record. Liquid floating tone arm device.

2. the base includes a suspension frame positioned above and spanning the turntable, a lifting rod positioned between the suspension frame and the liquid tank, a lifting interlocking rod provided on the suspension frame, two interlocking links passing through the suspension frame and connecting the lifting rod, the lifting interlocking rod, and both ends of the liquid tank, a winding motor, and two suspension wires each having one end connected to the lifting rod and the other end extending along the suspension frame and connected to the winding motor positioned below the turntable; the winding motor rotates forward or backward to feed or wind up the two hanging wires, thereby lowering or raising the lifting rod and the liquid tank; When the liquid tank descends, the lifting and lowering linkage rod stops the liquid tank at a predetermined position.

2. The liquid floating tone arm device according to claim 1.

3. a connection portion is provided on the top of the floating block; the bracket is detachably connected to the connection portion, the floating block is located between the reader and the counterweight; A cartridge is attached to the reading unit.

2. The liquid floating tone arm device according to claim 1.

4. a cartridge adjustment rod and an adjustment rod lift assembly; the cartridge adjustment rod is movably provided in the liquid tank, extends along the linear direction, and is operated to contact a bracket of the cartridge assembly, thereby swinging the cartridge assembly and lifting the reading unit away from the record; the adjustment rod lifting assembly includes an adjustment rod lifting motor provided in the liquid tank and connected to the cartridge adjustment rod, and two switch units provided in the liquid tank and electrically connected to the adjustment rod lifting motor, respectively; the adjustment rod lifting motor is controlled to swing the cartridge adjustment rod up and down, and the operation of the adjustment rod lifting motor is stopped by bringing the cartridge adjustment rod into contact with one of the two switch units.

4. The liquid floating tone arm device according to claim 1.

5. the adjusting rod lifting assembly includes a trigger portion provided on the floating block, and a sensor switch provided at an end of the liquid tank remote from the base and electrically connected to the adjusting rod lifting motor; When the trigger portion approaches the sensor switch, the sensor switch is triggered to control the adjustment rod lifting motor, thereby swinging the cartridge adjustment rod upward and lifting the reading portion away from the record.

5. The liquid floating tone arm device according to claim 4.

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