JP3011479U - Disk for lens cleaning of magneto-optical disk device - Google Patents

Abstract

(57) [Abstract] [Purpose] The brush on the rotating disk wipes the dust off the lens surface inside the optical disk device to maintain the performance of the lens, and when the device is taken out from the device, the brush is not pressed by the shell and is kept normal. The shape is maintained, and the brush protruding from the shell does not come into contact with the inner surface of the case even after being stored in the plastic case, and the brush is protected. [Structure] A brush 7 is planted in a slit 3 formed in a rotary disc 2 and slides along the lateral direction of the shell body 7.
The window hole 10 facing the brush 5 is formed. A piece matching the spindle hole 8 is provided to position the brush 5 in the window hole 10 when not in use, and the shell 1 is stored in the plastic case with the piece attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lens cleaning disk for cleaning dust and the like adhering to a lens to prevent malfunction of a magneto-optical disk device and to maintain proper operation.

[0002]

[Prior art]

 A magneto-optical disk consisting of a circular rotating disk and a shell that houses this rotating disk is the signal that is read by an optical pickup lens in the main unit. There is a risk of inconvenience in reading and trouble in recording and reproduction. Therefore, there is a technique in which a rod-shaped cleaning tool is inserted into the main unit to remove dirt on the lens, and the tip of the cleaning tool is applied to the lens surface to remove dust and the like.

[0003]

[Problems to be solved by the device]

 Since the above-mentioned prior art is manually cleaned, it lacks accuracy and cannot perform sufficient cleaning, and if the hand is out of order, the cleaning tool may cause extra trouble in the mechanism inside the device. There is. By the way, magneto-optical discs are different from simple discs such as compact discs and laser discs, in that the rotating disc is covered with a rectangular shell, so a technology that uses the same type of cleaner as the disc, such as a compact disc cleaner, is used. Does not exist.

The present invention has been made in view of such a conventional situation, and a brush is planted on a rotating disk of a disk having the same shape as the magneto-optical disk, and the brush removes dust on the lens surface. The brush has a length long enough to prevent the brush from being obstructed by the shutter of the shell when not in use, and the brush is not pressed by the case even when it is stored in the plastic case, so the shape is maintained for a long time. Therefore, it is an object of the present invention to provide a cleaning disk that can fully perform the function of the lens inside the device because cleaning is performed reliably.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has taken the following technical means, that is, a brush is planted in a slit formed in a rotary disk and is provided along a lateral direction of a shell body covering the rotary disk. The shutter slides with a window hole facing the brush, and when not in use, the rotary disk is manually operated to position the brush in the window hole. A piece of rubber or the like matching the spindle hole at the center of the rotary disk A shell is housed in a plastic case with a body provided and the piece body is attached, and a slit of the same shape is provided side by side inside the slit in the rotating disk, and a slit is formed in the slit rather than a brush. It is advisable to plant an auxiliary brush with a reduced height.

[0006]

[Action]

 When the shell is inserted into the main unit that has been switched on, the shutter on the shell automatically opens and the turntable operates. At the same time, the optical pickup lens inside the device rises up and approaches the rotating disk, so the dust on the lens surface is wiped away by the brush. Since the lens moves inward, the dust scattered around the lens can be double blown off when the auxiliary brush is provided.

When cleaning is complete and the disk is removed, the brush is often covered by the shell or shutter rather than by matching the window because the shutter is closed, but the piece engages in the spindle. The rotating plate works in conjunction with the rotation so that the brush can be positioned inside the window hole.

In order to store the disk in the plastic case, the piece body is stored in the case with the piece body mounted in the spindle hole. Then, the piece body projects to the surface of the shell and comes into close contact with the case surface, so that the shell body floats up, and therefore the brush does not have to contact the case.

[0009]

1 to 3, reference numeral 1 denotes a synthetic resin shell having the same shape as that of a conventional magneto-optical disk, which covers a circular rotary disk 2. A slit 3 is bored on one side of the turntable 2, and a brush 5 is planted in the slit 3. The slit 3 has a width of about 0.6 to 1 mm and a length of about 6 to 7 mm, and the brush 5 has a height of about 6 to 7 mm. As shown in the drawing, it is preferable that the slits 4 of the same shape are provided inside the slits 3 of the turntable 2 and the auxiliary brushes 6 are planted in the slits 4. The auxiliary brush 6 has a height of about 3 mm and is about half the length of the brush 5.

Reference numeral 7 denotes a metal plate-shaped shutter that slides along the lateral direction of the shell 1, and has a circular hole 9 facing the spindle hole 8 at the center of the rotating disk 2 and a vertically long hole facing the brush 5. Window hole 10 is formed. The shutter 7 is normally closed by a spring action as shown in FIG. 1, but when it is set in the main device (not shown), it automatically opens as shown in FIG. 3, and the central opening 11 of the shell 1 is opened. Appears.

Reference numeral 12 denotes a stepped rubber piece having a circular cross-section that matches the spindle hole 8 at the center of the rotary disc 2, and has a length that protrudes higher than the brush 5 when inserted into the spindle hole 8. . This piece body 12 is for positioning the brush 5 in the window hole 10 when the shell body is taken out from the main device. If the tip of the piece body 12 is engaged with the spindle hole 8 and the upper part is rotated by hand. The turntable 2 is rotated so that the brush 5 can be aligned with the window hole 10.

FIG. 4 shows a state in which the brush 5 cleans the optical pickup lens 13 in the main device, and the rotation of the turntable 2 causes the brush 5 to come into contact with the lens surface to directly blow off dust particles. So the lens is always kept clean. Further, since the lens 13 moves to the inside of the turntable 2, if the auxiliary brush 6 is provided, the dust scattered around the lens is further blown off by the auxiliary brush.

In FIG. 5, the brush 5 of the disk stored in the plastic case 14 does not come into contact with the case 14 even if the brush 5 is set downward because the bridge 12 is present. That is, since the brush 5 projects beyond the surface of the shell 1, the tip of the brush 5 deforms by touching the inner surface of the case 14 until that time. Since the shell 1 comes into close contact with the shell, the shell 1 is lifted up, and since the piece body is immovable, the rotating platen 2 also does not rotate, which prevents the brush from moving into the shell.

Note that the numerical values of the slits and brushes in the above embodiments are examples, and the present invention is also applicable to so-called mini discs, but these also belong to the free implementation range of the present invention.

[0015]

[Effect of device]

 The present invention has the following unique effects. (1) The dust on the lens surface is quickly blown off by the brush on the turntable, so the lens is always kept clean and good performance is achieved, and automatic and reliable cleaning work is performed. Accurate recording and playback of optical discs can be achieved without any additional trouble. (2) The brush can be aligned with the window of the shutter by manually operating the turntable with the bridge, so the brush does not come into pressure contact with the shell and the shutter, and it does not incur a burden, so it works effectively for a long time. do. (3) Since the tip of the brush does not come into contact with the inner surface of the case by inserting the bridge body into the case while inserting it into the spindle hole, and the brush does not move into the shell, distortion and deformation of the brush is prevented in advance. it can. (4) If an auxiliary brush is provided, the dust and dust blown off by the brush is further blown off, and a double cleaning effect is expected.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is an enlarged sectional view taken along line AA of the above.

FIG. 3 is a plan view of the present invention with a shutter open.

FIG. 4 is a side view showing a state in which a brush contacts a lens.

FIG. 5 is a sectional view of a case storing the present invention.

[Explanation of symbols]

 1 Shell 2 Rotating Plate 3 Slit 4 Slit 5 Brush 6 Auxiliary Brush 7 Shutter 8 Spindle Hole 10 Window Hole 12 Frame 14 Plastic Case

Claims (2)

[Scope of utility model registration request] 1. A brush 5 is planted in a slit 3 formed in a rotary disk 2, and a shutter 7 sliding along the lateral direction of a shell 1 covering the rotary disk 2 has a window hole 10 facing the brush 5. Is provided, and the rotary disk 2 is manually operated to position the brush 5 in the window hole 10 when not in use. A piece body 12 made of rubber or the like that matches the spindle hole 8 at the center of the rotary disk is provided, and With the body attached, put the shell 1 in the plastic case 1
A disk for lens cleaning of an optical disk device, which is stored in 4. 2. The magneto-optical disk according to claim 1, wherein slits 4 are arranged inside the slits 3 of the rotary disk 2, and auxiliary brushes 6 having a height lower than that of the brushes 5 are planted in the slits 4. Disk for lens cleaning of device.