JPH0356932Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of the invention] This invention relates to a cleaner that cleans dirt on the recording surface of a compact disk. Specifically, the invention cleans the compact disk while rotating it, and also rotates the cleaning member. This invention relates to a compact disk cleaner that uniformly cleans the entire compact disk.

[Technical background of the invention] Compact disks, which are smaller than conventional LP records and have a larger storage capacity, are becoming widespread. Another major feature of compact discs is that they have an error correction function, so even if bits are lost due to dust within the error correction limit, they can be restored to the original bits when they were recorded. This means that you can enjoy the sound during recording.

However, if there is attached dust of a size that makes it impossible to correct the error, it becomes impossible to correct the error, leading to deterioration in sound quality. Therefore, it is necessary to keep the surface of the disk as clean as possible. To clean the disk, it has been proposed to wipe it in a radial pattern with a soft cloth such as a chamois leather.

[Purpose of the invention] The purpose of the invention is to propose a cleaner with a simple configuration that automatically removes dirt from compact discs as described above.

Another object of this invention is to provide a compact disk cleaner that can accurately perform radial wiping, which is required as a compact disk cleaning method.

[Structure of the invention] The compact disk cleaner of this invention includes a rotatable turntable that supports the compact disk so that the surface to be cleaned is exposed downward;
A rotating member having a surface extending in the same direction as the surface of the turntable, and a ring-shaped cleaning member attached to the upper surface of the rotating member and elastically abutting the lower surface of the compact disk placed on the turntable. and a drive source for rotationally driving the turntable and the rotating member, wherein the diameter of the cleaning member is at least equal to the radial length of the surface of the compact disc to be cleaned. It is.

[Example] Hereinafter, an example of this invention shown in the drawings will be described.
A lid body 2 whose one end is pivotally supported by the casing 1 is attached to the opening. A lower end of an upright turntable shaft 4 is rotatably mounted on a bottom plate 3 of the casing 1 by a bearing 5. A turntable 7 is attached to the upper end of the turntable shaft 4 and supports a hole in the center of the lower surface of the compact disc 6. The center of the upper surface of the compact disc 6 is held down by a holder 8 attached to the lower surface of the lid 2. A gear 9 is mounted coaxially with the turntable shaft 4 in the middle of the turntable shaft 4. The gear 9 meshes with the worm gear 10. The worm gear 10 is provided at one end of the worm gear 10 horizontally supported on the bottom plate 3. The worm gear 10 has a gear 9
The first speed increasing gear 12 is in mesh with the first speed increasing gear 12 at a position opposite to the first speed increasing gear 12 . This gear 12 is attached to the upper end of an upright shaft 13 whose lower end is supported by a bearing 14.
The first speed increasing gear 12 meshes with the second speed increasing gear 15. The second speed increasing gear 15 is fixed to an intermediate portion of an upright shaft 16 whose lower end is rotatably supported by a bearing 17 . A disk-shaped rotating member 18 is fixed to the upper end of the upright shaft 16 coaxially with the upright shaft 16 . This rotating member 18 has a diameter at least equal to the radial length of the signal recording band of the compact disc 6. A donut-shaped cleaning member 19 having a diameter approximately equal to the diameter of the rotating member is attached to the upper surface of the rotating member 18. The cleaning member 19 has a semicylindrical cross section and is made of a cushion material such as a sponge or urethane foam, and a cleaning cloth made of a soft material such as a chamois leather provided to cover the surface of the cushion material. It is composed of. The cleaning member 19 has a sufficient height so that its upper surface comes into elastic contact with the lower surface of the compact disc 6 when it is mounted.

A pulley 21 is attached to the other end of the worm shaft 11, and an endless belt 25 is passed between this pulley 21 and a pulley 24 attached to an output shaft 23 of a motor 22. Pulley 24
The diameter of the motor is larger than that of the pulley 21, so that the rotation of the motor is decelerated and transmitted to the worm shaft 11, which is further decelerated by the gear 9 to drive the turntable shaft 4. On the other hand, the rotating member 18 makes the rotation speed of the worm gear 10 higher than the rotation speed of the turntable 7 by means of two speed-increasing gears 12 and 15. That is, for example, if the rotation speed of the motor 22 is 5,000 to 6,000 rpm, the rotation is decelerated so that the turntable rotates once every 5 to 10 seconds, and the rotating member 18 rotates once every 1 to 1.5 seconds. Pulleys 21 and 22, worm gear 10, and gears 9, 12, and 15 are set in advance.

Next, to explain the operation, first open the lid 2 and place the compact disc 6 on the turntable 7.
Place the container with the surface to be cleaned facing down, and close the lid 2 again. The compact disc 6 is rotatably held by a holder 8 on the lower surface of the lid 2 in the same manner as in a conventional compact disc player. When the motor 22 is driven in this state, the worm gear 10 rotates via the pulley 24, the endless belt 25, and the pulley 21, thereby rotating the gear 9 that meshes with the worm gear 10. As a result, the turntable 7 rotates slowly. On the other hand, the rotation of the worm gear 10 is transmitted to the gear 15 via the gear 12, and the rotating member 18 is faster than the turntable 7, and the rotating member 18 rotates 5 to 8 times while the turntable 7 makes one rotation. As the rotating member 18 rotates, the cleaning member 19 rotates while contacting the lower surface of the compact disc 6, and wipes the lower surface of the compact disc 6 radially. Since the cleaning member 19 is ring-shaped and rotates, it can uniformly wipe the entire compact disc 6 with the same trajectory.

[Effects of the invention] Since the compact disk cleaner of this invention can be implemented with a simple structure, it can be provided in a small size and at low cost. Further, since the cleaning member can wipe the surface to be cleaned uniformly and radially with the same trajectory, the compact disk can be cleaned reliably and with a preferable trajectory.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing an embodiment of the cleaner of this invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a perspective view showing the cleaning member. It is. In the drawing, 7 is a turntable, 9, 1
2 and 15 are gears, 10 is a worm gear, 18 is a rotating member, 19 is a cleaning member, and 22 is a motor.

Claims (1)

[Claims for Utility Model Registration] (1) A rotatable turntable that supports a compact disk so that the surface to be cleaned is exposed downward, and a rotating surface that extends in the same direction as the surface of the turntable. a ring-shaped cleaning member attached to the upper surface of the rotating member and elastically abutting against the lower surface of the compact disk placed on the turntable; and rotationally driving the turntable and the rotating member. a drive source for cleaning the compact disk, and the diameter of the cleaning member is at least equal to the radial length of the surface of the compact disk to be cleaned. (2) Utility model registration In claim 1, a gear is provided between the drive source, the turntable, and the rotating member for increasing the rotational speed of the rotating member relative to the rotational speed of the turntable. A compact disk cleaner characterized by having a mechanism. (3) Utility model registration Claim 1, characterized in that the cleaning member is composed of an elastic core member and a flexible sheet member that covers at least the upper surface of the core member. Compact disk cleaner.