JPH0119208Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a cleaner that mechanically performs a brushing operation on a stylus of a pick-up cartridge.

In order to remove dirt such as dust from the needle tip of a pick-up cartridge, it is said to be most preferable to brush from the base to the tip of the cantilever. That is, if the direction of brushing with respect to the needle tip is reversed from the front to the rear of the cantilever, there is a risk that the cantilever may break or the suspension system may be adversely affected.

SUMMARY OF THE INVENTION An object of this invention is to provide a stylus cleaner for a pick-up cartridge that allows a correct brushing operation to be performed mechanically.

Hereinafter, an embodiment of this invention will be described with reference to the accompanying drawings.

As shown in FIG.
includes a motor case 3 and a main body housing 4 installed on a base 2. The motor case 3 has a built-in power source such as a battery (not shown) and a motor, and a switch 5 is attached to the front.
A motor shaft 6 protrudes from the side wall of the motor case 3. In this embodiment, the motor shaft 6 is rotated clockwise in the drawing by turning on the switch 5. The main body housing 4 has an opening 7 on the upper surface, and a pair of crankshafts 8, 8 are rotatably supported on both side walls, and one crankshaft 8 is connected to the motor shaft 6. . If you also refer to Figures 2 to 4,
One ends of crank arms 9, 9 are fixed to the crankshafts 8, 8, and the other ends of these crank arms 9, 9 are connected to crank pins 10, 10.
(Only one side is shown in the figure for convenience)
are pivotally supported on both sides of a link plate 11 made of an elongated plate material. In addition, the main body housing 4
A pair of horizontal guide grooves 12, 12 are provided on both side walls, for example, at substantially the same height as the shaft support positions of the crankshafts 8, 8. These guide grooves 12, 12 have a link plate 1
a pair of slide shafts 13 protruding from both rear sides of 1;
13 is slidably inserted. A brush 14 is attached to the front upper surface of the link plate 11 so as to protrude from the opening 7 of the main body housing 4. In FIGS. 2 to 4, reference numeral 15 is a turntable board of the player, and an armrest 16 on which a tone arm 17 is placed is provided upright on the turntable board 16. Further, a cartridge 19 including a cantilever 21 having a stylus tip 20 attached to the tip thereof is mounted via a head shell 18, as is known in the art.

In the above configuration, as shown in FIGS. 2 to 4, the front of the stylus cleaner 1 is aligned with the distal end of the tone arm 17, and the opening 7 of the main body housing 4 is aligned along the longitudinal direction of the cantilever 21. The stylus cleaner 1 is placed on the turntable board 15 so as to be positioned below. When the switch 5 is turned on in this state, the motor shaft 6 rotates clockwise in the drawing, and the crankshafts 8, 8 and crank arms 9, 9 connected thereto also rotate together in the same direction. As a result, the link plate 11, which is pivotally supported by the crank arms 9 through the crank pins 10, allows the slide shafts 13, 13 to be connected to the guide groove 12,
While sliding along the crank arm 12, the crank arm 9 moves in conjunction with the rotation of the crank arms 9, 9. In this case, the tip of the brush 14 extends from the base of the cantilever 21 to the needle tip 20, as shown by arrows in FIGS. 2 and 3.
brush in the correct direction, and
After leaving the needle tip 20 (FIG. 4), it returns along a predetermined circular trajectory and brushes again.
In addition, in this case, the length of the crank arms 9, 9,
Crank pins 10, 10 and slide shafts 13, 13
The movement of the tip of the brush 14 can be changed from a perfect circle to various irregular circles by appropriately changing the distance between the shafts 8, 8, and the mutual relationship between the shaft support positions of the crankshafts 8, 8 and the positions of the guide grooves 12, 12. I can do it. Furthermore, if the guide grooves 12, 12 are shaped into a waveform or the like, the tip of the brush 14 can be moved in a deforming manner. Therefore, the movement of the brush 14 may be adjusted to achieve more effective brushing.

In the above embodiments, the motor may be operated by a voice response switch or the like. Alternatively, you may attach a handle or the like and turn it manually without using a motor; in that case,
A reverse rotation prevention mechanism such as a ratchet may be provided to ensure rotation only in a predetermined direction.

As explained above, according to this invention, the main body housing 4 has the opening 7 on the top surface, and the crankshaft 8 is exposed in the opening 7 and is supported substantially horizontally within the main body housing 4 and rotates in a predetermined direction.
A crank arm 9 has one end fixed to the crankshaft 8, a brush 14 is fixed to one end, and the other end is a link fixed to a slide shaft 13 supported movably in the horizontal direction by the main body housing 4. It has a plate 11 and a crank arm 9.
The other end of the brush 14 is connected to the link member 11 so that the brush 14 traces a substantially elliptical locus with its longitudinal diameter located substantially horizontally. Therefore, since the tip of the brush protrudes and retracts from the opening of the case and brushes in an elliptical trajectory, this cleaner can be used in relation to the tone arm 17 placed on the armrest 16, for example, on the turntable board. By positioning and placing it at a predetermined location on the top, it becomes possible to mechanically brush the needle tip correctly.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view of a stylus cleaner according to this invention, and FIGS. 2 to 4 are side views showing the operation of the stylus cleaner. In the figure, 1...Stylus cleaner, 2...Base, 3...Motor case, 4...Main housing, 5...Switch, 6...Motor shaft, 7
...Opening, 8...Crankshaft, 9...Crank arm, 10...Crank pin, 11...
Link plate, 12... Guide groove, 13... Slide shaft, 14... Brush, 15... Turntable board, 16... Armrest, 17... Tone arm, 18... Head shell, 19... Cartridge, 20... ... Needle body, 21 ... Cantilever.

Claims (1)

[Scope of utility model registration request] A stylus cleaner for removing dirt such as dust attached to a stylus tip attached to the tip of a cantilever using a rotating brush, which includes a main body housing having an opening on the top surface, and a main body that is exposed inside the opening. a crankshaft that is supported substantially horizontally within a housing and rotates in a predetermined direction; a crank arm that has one end fixed to the crankshaft; the brush is fixed to one end, and the other end is horizontally attached to the main body housing. a link member fixed to a movably supported sliding shaft; The brush is connected to a link member, and the brush moves in and out of the opening in conjunction with the rotation of the crank arm, and performs a brushing operation on the needle tip by drawing a rotation locus from the cantilever side toward the needle tip. A stylus cleaner with a pick-up cart cartridge.