JPS5965902A - Record cleaning device - Google Patents

Abstract

PURPOSE:To obtain always a stable cleaning effect without being influenced by a variation of battery voltage by detecting a revolving speed of a rotary driving plate, and cutting off automatically electric conduction to a motor for driving to rotate the rotary driving plate and a rotary brush, when said revolving speed reaches a specified number. CONSTITUTION:Light from a light emitting diode 55 is reflected by a passive reflector and is photodetected by a phototransistor 56, and a revolving speed of a rotary driving plate 7 is detected as mentioned below. That is, when the rotary driving plate 7 rotates in the direction as indicated with an arrow, light from the light emitting diode 55 is made incident periodically to the passive reflector 53. The light which is made incident to this passive reflector 53 is reflected and is photodetected by the phototransistor 56. In this case, counting is executed, and this photodetecting signal is processed by an integrated circuit. When a revolving speed of said rotary driving plate 7 reaches a specified number, this integrated circuit cuts off automatically electric conduction to a motor 9 for driving to rotate this rotary driving plate 7 and a rotary brush 16, and ends a cleaning operation of a record disk 8.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a special table provided with a rotating plate and a guide pin into which the center hole of a record is fitted, a rotating brush rotatably driven by a motor, and a rotating brush fitted into the guide pin. The record cleaner body is equipped with a rotary drive plate having a hole for rotation, and a battery power supply section that supplies power to the motor. This invention relates to a record cleaning device that rotates a record by rotating a plate and cleans the record with a rotating brush.

Configuration of conventional example and its problems In this type of conventional record cleaning device, the record cleaner body is placed on a dedicated table via the record, and a rotary drive plate provided on the record cleaner body is rotated. As a result, the record is rotated and a rotating brush is used to clean the record, but this record cleaning device uses battery power to drive the motor, so it is still possible to clean the record with a rotating brush. The end of cleaning was set according to the time, but as the battery voltage decreased, the motor rotation speed changed, resulting in the problem that a stable cleaning effect could not always be obtained. Was.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to provide a record cleaning device that can always provide a stable cleaning effect.

Structure of the Invention In order to achieve the above-mentioned object, the present invention detects the number of rotations of a rotary drive plate that is provided in a record cleaner body and rotates a record, and when the number of rotations reaches a certain number,
The power supply to the motor that rotationally drives the rotary drive plate and the rotary brush is automatically cut off. According to this configuration, even if the battery voltage drops and the motor rotation speed changes, the record is maintained. Cleaning of the record ends when the number of revolutions of the rotary drive plate that rotates the record reaches a certain number, so it is possible to always obtain a stable cleaning effect without being affected by changes in battery voltage. It is possible.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to accompanying drawings. Fig. 1 shows the dedicated table and the record cleaner body separated, and 1 is the dedicated table, and one end of this dedicated table 1 is provided with a guide pin 2 into which the center hole of the record disc, which will be described later, is fitted. , and a rotatable rotary plate 3 is provided around the guide pin 2. Further, in the other pane of the dedicated table 1, a locking frame 4 is provided and a roller 5 that can rotate freely once is provided. 6 is a record cleaner body, and this record cleaner body 6 is provided with a rotary drive plate 7.

In FIG. 2, a record 8 is placed on the dedicated table 1, and the record cleaner body 6 is attached to the locking frame 4 of the dedicated table 1.
The record cleaner main body 6 is provided with a dust cover 6a.

Figure 3 shows the record cleaner body 6 and dedicated table 1.
This is a cross-sectional view of a motor installed in a 9t/'i record cleaner main body 6, and a motor pulley 11 is attached to a motor shaft 10 protruding from one end of the motor 9. Reference numeral 12 denotes a rotating shaft which is positioned below the motor 9 and rotatably supported by a support frame 13 in the record cleaner main body 6. A pulley 14 is attached to one end of this rotating shaft 12, and a pulley 14 is attached to one end of the rotating shaft 12. -11, a belt 15 is stretched between the two. Reference numeral 16 denotes a rotary brush rotatably provided within the record cleaner main body 6. One end shaft portion 17 of the rotary brush 16 is rotatably supported by a brush bearing 18, and the other end shaft portion 19 of the rotary brush 16 is connected. It is connected to the other end of the rotating shaft 12 via a tool 20.

A rotary plate 3 provided at one end of the dedicated table 1 is rotatably supported by a plurality of balls 21. 2
2 is a disk pad provided on the upper surface of the rotary plate 3; 23 is a plurality of pads provided on the lower surface of the rotary drive plate 7; the record disc 8 is interposed between this pad 23 and the disk pad 22; In addition, the pad 23 and the disc pad 22 are made of a material having high frictional resistance, such as rubber, in order to ensure good pressure contact with the record 8.

Since FIG. 4 shows the power transmission structure to the rotary drive plate 7, 24a, 24b, 240 are reduction gears In consisting of one pulley and a plurality of gears, and this reduction gear group 24
1 boo IJ-24 among a, 24b, 240
& is connected to a goo IJ-25 provided at one end of the rotating shaft 12 via a belt 26, and meshes with an internal gear 27 provided on the inner periphery of the final stage gear 24cfd rotary drive plate 7. As shown in FIG. 4 and FIG. 3 described above, a hole 28 into which the guide pin 2 is fitted is provided at the center of the rotary drive plate 7. As shown in FIG.

FIG. 5 shows a side sectional view of a record cleaning device according to an embodiment of the present invention.

The dedicated table 1 in FIG. 1 mentioned above is provided with a static eliminator 29 that can be retracted from the static eliminator 29, and the static eliminator 29 is provided with a plurality of discharge terminals 30 facing upward. . 31 is an operation button. The interior of the dedicated table 1 is configured as shown in FIG. A spring that is always biased to protrude outward from the dedicated table 1, and one end of this spring 33 is attached to the static eliminator 29.
The other end is attached to a support part 34 provided on the dedicated chiffle 1.

Reference numeral 35 designates a lock lever provided within the dedicated table 1. When the static eliminator 29 protrudes outward from the dedicated table 1 as shown in FIG. The static eliminator 29 is engaged with a stepped portion 36 provided in the static eliminator 29 to prevent the static eliminator 29 from protruding outward more than necessary. When the deformed static eliminator 29 is pushed into the dedicated table 1 and stored, one end 35 & of the lock lever 36 fits into the recess 37 provided in the static eliminator 29 to maintain its stored state. It is something. The operation button 31 is attached to the end of an operation shaft 38 provided in the dedicated table 1, and is normally projected outward from the dedicated table 1 by the spring force of a spring 39. When the remover 29 is housed in the special table 1, that is, when the one end 352L of the lock lever 35 is engaged with the recess 37 of the static remover 29, the operation button 31 is pressed against the spring of the spring 39. When pressed against the force, the operation button 31 pushes the other end 36b of the lock lever 35 and releases the engagement between the one end 352L of the lock lever 36 and the recess 37 of the static eliminator 29. As a result, the static eliminator 29 projects outward from the dedicated table 1 due to the spring force of the spring 33, as shown in FIG. 40 is brought into contact with a fixed contact plate 42 provided on the battery case 41. Note that when the static eliminator 29 is housed in the dedicated table 1, the movable contact plate 40 cannot be moved away from the fixed contact plate 42 due to its unique spring properties unless it is suppressed by the static eliminator 29. It is something that exists. 43 is a step-up transformer provided in the static eliminator 29.

Fig. 7 shows the connection structure between the dedicated table 1 and the record cleaner main body 6. In Fig. 7, 44 is a suction plate provided on the record cleaner main body 6, and the dedicated A magnet 45 is provided on the table 1, and the magnet 46 is attracted to a suction plate 44, thereby mechanically connecting the dedicated table 1 and the record cleaner main body 6. Electrically, a connector terminal 46 that is electrically connected to the motor 9 is provided on the θ side of the record cleaner body, and a connector terminal 46 is fitted and connected to the dedicated table 1 side, and a battery is connected. Power supply part 3
A connector pin 47 is provided which is electrically connected to the connector 2, and electrical connection is achieved by fitting the connector pin 47 into the connector terminal 46. Sword connector bin 4
7 is normally covered with a cover 48, and this cover 48 is normally urged upward by the spring force of a spring 49 so as to cover the connector bin 47. Therefore, when the record cleaner main body 6 is placed on the dedicated table 1, the cover 48 is pushed downward by the protrusion 6b of the record cleaner main body 6, and the connector bin 47 is fitted into the connector terminal 46 and connected. At the same time, the magnet 45 of the special table 1
is attracted to the suction plate 44 of the record cleaner main body 6.

In the above configuration, the gluing operation of the record disc 8 and the neutralizing action of the record disc 8 will be explained next. As shown in FIG. 3, the center hole 8a of the record 8 is fitted into the guide bin 2 of the dedicated table 1, and the record 8 is placed on the dedicated table 1. Thereafter, the record cleaner main body 6 is placed on the dedicated table 1 so as to be located above the record disc 8. In this case, the record cleaner main body 6 is inserted into the guide bin 2 through the hole 28 of the rotary drive plate 7. At the same time, the free end of the record cleaner main body 6 is locked to the locking frame 4 of the dedicated table 1 as shown in FIG. In this locked state.

As explained in FIG. 7, the connector bin 47 of the dedicated table 1 is fitted into the connector terminal 46 and connected, and the magnet 45 of the dedicated table 1 is attracted to the suction plate 44 of the record cleaner main body 6 11. . In this state, when the operation button 31 shown in Fig. 6 is pressed, the lock lever is activated.
36 is disengaged from the recess 37 of the static eliminator 29, and the static eliminator 29 protrudes outward from the dedicated table 1 due to the spring force of the spring 33.
The dedicated table 1 presses the movable contact plate 4Q and the battery source is
It is supplied from the connector bin 47 to the motor 9 via the connector terminal 46, and also to the static eliminator 29. The motor 9 rotates when power is supplied, and the power is generated by the motor boot IJ-11° belt 16. Pulley 14
The rotational drive plate is transmitted to the rotating brush 16 via the rotating shaft 12, and is transmitted to the belt 26 from the pulley 25 provided at one end of the rotating shaft 12 via the belt 26° pulley 24a, the reduction gear group 24b, 24C, and the internal gear 27. transmitted to.

The rotation of the rotary drive plate 7 causes the record disc 8 to rotate around the guide pin 2. As the record 8 rotates, the dust accumulated on the sound tiJI of the record 8 is stirred up by the rotation of the rotating brush 16 and sucked into the dust case. Thereby, the cleaning work of the record disc 8 is automatically performed.

Further, the removal of the charged object from the record disc 8 by the static eliminator 29 is performed in the following manner. That is, as shown in FIG. 8, a grounding plate 51 is provided inside the cover 50 that protects the discharge terminal 30 of the static eliminator 29, and this grounding plate 51 prevents a strong electric field from forming on the bottom surface of the record 8. It plays the role of creating an area. Therefore, in this state, when the power supply voltage supplied to the static eliminator 29 is boosted by the step-up transformer 43 shown in FIG. ionizes the air and attracts and neutralizes molecules of different polarity in the weak electric field region on the upper surface of the record 8, so that the charged object on the upper surface of the record 8 is neutralized and removed.

FIG. 9 shows the principle structure for detecting the rotational speed of the rotary drive plate 7, and FIG. 10 shows the internal structure of the rotary drive plate 7. In the figure, reference numeral 62 shows the guide pin 2 inside.
The rotary drive plate 70 is a rotary support portion having a hole 28 into which the rotary drive plate 70 is fitted, and a reflecting plate 53 is provided on a part of the outer periphery of this rotary support portion 52 .

64 is a printed wiring board, and this printed wiring board 54 is provided with a light emitting diode 55 serving as a light emitting part and a phototransistor 56 serving as a light receiving part with a light shielding plate 57 interposed therebetween. The light from the light emitting diode 56 is reflected by the reflection plate 53 as shown by the arrow in FIG. It is done. That is, when the rotary drive plate 7 rotates in the direction of the arrow, the light from the light emitting diode 65 periodically hits the reflection plate 53. The light hitting this reflection plate 53 is reflected and received by the phototransistor 66. At this time, counting is performed, and this light reception signal is processed by an integrated circuit (not shown). This integrated circuit is connected to the rotary drive plate 7.
When the number of rotations reaches a certain number, the power supply to the motor p that rotationally drives the rotary drive plate 7 and the rotary brush 16 is automatically cut off, and the cleaning operation of the record disc 8 is completed. By using such a means, even if the voltage of the battery power supply unit 32 decreases and the rotation speed of the motor 9 changes, it will not be affected by this change in battery voltage.
A stable cleaning effect can always be obtained.

Effects of the Invention As described above, according to the present invention, cleaning of the record is completed when the number of rotations of the rotary drive plate that rotates the record reaches a certain number, so that the battery voltage does not decrease. Even if the rotation speed of the motor changes, a stable cleaning effect can always be obtained.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a record cleaning device according to an embodiment of the present invention, Fig. 2 is a perspective view showing a cleaning state of a record by the same cleaning device, and Fig. 3 is a longitudinal section of the same cleaning device. 4 is a cross-sectional view of the cleaning device, FIG. 5 is a side sectional view of the cleaning device, FIG. 6 is a top view showing the internal configuration of a dedicated table in the cleaning device, and FIG.
The figure is a cross-sectional view showing the connection structure between the dedicated table and the record cleaner main body in the same cleaning device, FIG. 8 is a cross-sectional view showing the electrostatic charge 1 residual means in the cleaning device fffl, and FIG. FIG. 10 is a perspective view showing the internal structure of the rotary drive plate. 1... Dedicated table, 2... Guide pin, 3... Rotating plate, 6... Record cleaner body, 7... Rotating drive plate , 8... Record disc, 8a... Center hole of the record disc, 9
...Motor, 16...Rotating brush, 2
8...Center hole of rotating drive plate, 32...Battery power supply section, 63...Reflector plate, 56...Light emitting diode, 56...Photo transistor. Figure 6 Figure 7 Figure 8 Figure 9 Figure 7 Figure 10

Claims (1)

[Claims] A dedicated table is provided with a guide pin that fits into the center hole of the record at one end, and a rotary plate that is freely rotatable around the guide pin, and a rotating brush that is rotationally driven by a motor. Rotationally driven by a motor,
A rotary drive plate is provided at the center with a hole that fits into the guide pin, and a record cleaner body that rotates the record by rotation of the rotary IM drive plate and cleans the record with a rotating brush, and a power supply to the motor. and a battery power supply unit that supplies a power source, the record cleaning device detects the number of rotations of the rotary drive plate, and automatically cuts off power to the motor when the number of rotations reaches a certain number.