JP3027238U - Cleaner with shell for optical pickup lens such as MD - Google Patents

Abstract

(57) [Abstract] [Problem] In a cleaner with a shell, the brush may come into contact with the shell or the shutter and be deformed. Since the brush is formed to be short, sufficient cleaning cannot be performed. Solved this. A cleaning body 4 is attached to a disk body 1,
A circular window hole 5 is formed in the shell 2 including the shutter 3.
Separately, it is provided with a support part and a holder provided with a projecting ring-shaped convex part.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a cleaner with a shell for cleaning optical pickup lenses such as MD (mini disk) and MO (optical magnetic).

[0002]

[Prior art]

 A technique for cleaning an optical pickup lens for reproducing a signal such as a CD (compact disc) has been conventionally known (see, for example, JP-A-60-40537). This technology was originally a cleaning-only brush fixed to a playback-only disc, in which a disc without a shell was attached to the player as it was.

[0003]

[Problems to be solved by the device]

 By the way, if the cleaning brush is attached to the MD or MO with the shell on the outside in the same manner as in the above technique, the tip of the brush may be obstructed by the shell or the shutter provided on the shell. In other words, in order to clean the optical pickup lens, it is necessary that the tip of the brush is in contact with the lens properly. Therefore, in the conventional disk without a shell, make the brush long enough. However, since the brush attached to the disk with the shell cannot have a sufficient length, the length of the momentum brush is limited, which results in insufficient contact with the lens and cleaning. There was a problem of omission.

The present invention has been made in view of the above conventional circumstances, and a cleaning body made of a filamentous material having a sufficient length can be attached to a disc having a shell such as MD or MO. The purpose is to ensure that dust is wiped off and the lens surface is always kept clean, and that the disc itself can be prevented from adhering to dust during storage to maintain the life of the cleaner for a long time. .

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, according to the present invention, a cleaning body made of fine filamentous material is attached to a disc body, and a shell including a shutter outside the body is provided with a circular window hole larger than the rotation circumference of the cleaning body. A holder formed by separately forming a support portion that engages with the clamping plate in the center of the disk body, and a ring-shaped convex portion that engages with the circular window hole and the cleaning body is located inside. The purpose of the present invention is to provide a cleaner with a shell for an optical pickup lens such as an MD, which has a structure with.

[0006]

[Embodiment of device]

 In FIG. 1, reference numeral 1 is a disk body having a shell 2 on the outside, and a shutter 3 is normally closed as shown in the figure. When the player is set on a player (not shown), the shutter naturally opens and a virtual line is drawn. Stops at the position of and the main body 1 rotates. A cleaning body 4 made of a fine thread is attached to the main body 1, and the cleaning body 4 rotates together with the main body 1 during use. Reference numeral 5 denotes a circular window formed in the shell 2 and the shutter 3, which has a diameter larger than the rotation circumference of the cleaning body 4, so that the cleaning body 4 does not come into contact with the shell and the shutter.

FIG. 2 shows a state in which the cleaning body 4 cleans the optical pickup lens 10. The cleaning body 4 faces downward in this way during use. The cleaning body shown in the figure inserts a filamentous material 4a formed by bundling fine hairs into the main body 1 from the back side of a pair of small holes 1a into a U shape, and a tape 6 is attached to the surface of the intermediate portion. It is fixed, and dust on the lens 10 is blown off by both ends of the filamentous material 4a. The cleaning body 4 is merely an example. For example, a thread-like material may be planted in a slit groove formed in the main body to form an ordinary brush shape, or the cleaning body 4 may be provided at a plurality of locations in the main body. Be within the scope of free implementation of the invention.

Originally, the shell and shutter of this kind of disc cover the entire surface of the main body, but as described above, since the circular window hole 5 is present in the present invention, the cleaning body 4 is free of obstacles, and therefore the lens It is possible to provide a sufficient length for contacting the surface 10, and the cleaning body 4 remains exposed even when the shutter 3 is closed, so that no external pressure is applied.

FIG. 3 shows a state in which the disc is supported by the holder 20. The holder 20 is provided with a support portion 21 that engages with the clamping plate P at the center of the main body 1, and a ring-shaped protrusion 22 that engages with the circular window hole 5 and that has the cleaning body 4 located inside. That is, since the supporting portion 21 fixes the clamping plate P and the convex portion 22 intervenes in the circular window hole 5, the disk becomes immovable. At this time, the tip of the cleaning body 4 does not come into contact with the bottom surface 20a of the holder 20 and does not touch the convex portion 22 either. Reference numeral 23 is a lid that covers the holder 20, and covers the disc.

As shown in FIG. 4, it is convenient for the holder 20 to be formed with receiving portions 24 at the four corners that match the corners of the disk (shown in phantom). The receiving portion 24 holds the disk more stably and sufficiently withstands vibration and shock.

The present invention can be applied to most discs covered with a shell, and not only a read-only disc but also a recordable disc can be used. For example, a mini disk has a small diameter of 64 mm, but since a maximum of 74 minutes of digital sound can be recorded / played back, if a cleaning body is provided near the center of the disc body 1, the cleaning zone up to this part cannot be recorded. As for the area, a recording zone of about 35 to 40 minutes can be left on the outer portion. In other words, cleaning and recording can be combined on the same disk.

[0012]

[Effect of device]

 The present invention as described above has the following unique effects. (1) Since the circular window holes are formed in the shell and shutter, there are no obstacles in the cleaning element attached to the disk body during rotation and in the stationary state, and the cleaning element always functions normally. The surface is reliably cleaned. (2) It can be applied not only to playback-only discs such as CD software and MD software, but also to recording MDs. In that case, a single disc can be used for both recording and cleaning, and a separate cleaner can be used. The effect of two birds with one stone can be demonstrated. (3) Since the circular window hole is blocked by the holder when not in use, dust and foreign matter can be prevented from adhering to the disk body, and the holder also supports the whole body immovably so that it can be protected from vibration and shock. Protected and long-lasting cleaner life.

[Brief description of drawings]

FIG. 1 is a plan view of a disc according to the present invention.

FIG. 2 is a partial cross-sectional view showing a state where the cleaning body wipes the lens surface.

FIG. 3 is a cross-sectional view in which a disc is fixed to a holder.

FIG. 4 is a plan view of a holder.

[Explanation of symbols]

 1 Disc Main Body 2 Shell 3 Shutter 4 Cleaning Body 5 Circular Window Hole P Clamping Plate 20 Holding Tool 21 Support Part 22 Convex Part

Claims (1)

[Scope of utility model registration request] 1. A cleaning body made of fine filamentous material is attached to a disk body, and a circular window hole larger than a rotation circumference of the cleaning body is formed in a shell including a shutter outside the body.
In addition, separately, there is provided a support portion that engages with the clamping plate in the center of the disk body, and a holder that protrudes a ring-shaped convex portion that engages with the circular window hole and in which the cleaning body is located. Cleaner with a shell for optical pickup lenses such as MD.