JPH0515126U - Cartridge for cleaning objective lens - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cleaning cartridge having good workability and capable of easily and reliably cleaning an objective lens. A cleaning cartridge (2) for cleaning an objective lens, which has an outer shape that is substantially the same as the outer shape of a disk cartridge and is mountable to an optical disk device instead of the disk cartridge, and an outer shell (2). An opening 2a formed on the shell portion 2 and opened in the entrance side for receiving a disc cartridge of the optical disc device 10 in a state of being attached to the optical disc device 10, and connected to the opening portion 2a and inserted from the opening portion 2a. Further, it is provided with a guide portion 2b for guiding the tip portion 4b of the rod-shaped cleaning member 4 for cleaning the objective lens 12 so as to contact with the surface of the objective lens 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an objective lens cleaning cartridge for cleaning an objective lens of an optical disk device.

[0002]

[Prior Art]

 The optical disc device has a built-in objective lens for focusing the light emitted from the semiconductor laser on the optical disc and writing information to the optical disc and reading information from the optical disc. .. The optical performance of the objective lens affects the quality of the information signal written on the optical disc or the information signal read from the optical disc. Further, the laser beam is focused on the optical disc, It also greatly affects the servo performance that follows each track. Therefore, it is important to improve the performance of the objective lens body, but not only that, it is also very important to keep the surface of this objective lens clean so as not to deteriorate the optical performance.

Therefore, when dust or the like adheres to the objective lens and cleans the objective lens, the objective lens is cleaned. Conventional methods include a method of directly cleaning with a cotton swab or an optical disc. A cleaning cloth, a brush or the like is attached to a pseudo medium having the same shape as the above, and the objective lens is cleaned by rotating this pseudo medium with a spindle motor for rotating the optical disc.

[0004]

[Problems to be solved by the device]

 However, among the above-mentioned conventional examples, when directly cleaning with a cotton swab, there is a problem that the cleaning position is not fixed and the workability is extremely poor. Further, when the cleaning cartridge is used, there is a problem that the cleaning cloth and the brush are fixed to the pseudo medium and thus cannot be easily replaced when they become dirty. Further, since this method is a dry method, there is a problem that the objective lens cannot be completely cleaned. Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a cartridge for cleaning an objective lens, which has good workability and is capable of easily and reliably cleaning the objective lens. To provide.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems and to achieve the object, the objective lens cleaning cartridge of the present invention is a cleaning cartridge for cleaning the objective lens of an optical disc device using an optical disc housed in a protective cartridge. And an outer shell part having an outer shape substantially equal to the outer shape of the protection cartridge and mountable to the optical disk device instead of the protection cartridge, and the outer disk formed on the outer shell part. For cleaning the opening opening to the entrance side for receiving the protection cartridge of the optical disk device and the objective lens connected to the opening and inserted from the opening when mounted in the device And a guide portion for guiding the tip portion of the rod-shaped cleaning member so as to contact the surface of the object lens. Further, in the objective lens cleaning cartridge according to the present invention, the guide portion is constituted by a tunnel-shaped hole formed in the outer shell portion.

[0006]

[Action]

 As described above, since the objective lens cleaning cartridge according to the present invention is configured, it is mounted in the optical disk device instead of the cartridge in which the optical disk is stored, and the cleaning member is opened from the entrance side of the optical disk device. By inserting, the tip of this cleaning member comes into contact with the surface of the objective lens, and by moving the cleaning member in this state, you can easily clean the objective lens. It

[0007]

[Embodiment] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a side sectional view of an objective lens cleaning cartridge (hereinafter referred to as a cleaning cartridge) according to an embodiment. The outer shape of the cleaning cartridge 2 is generally the same as that of the cartridge in which the magneto-optical disc is housed (both in the thickness direction and in the plane). Therefore, it is possible to mount the magneto-optical disk, which is a recording / reproducing medium, on the magneto-optical disk device instead of the disk cartridge.

The cleaning cartridge 2 is inserted into the magneto-optical disk device 10 (see FIG. 2) from the end surface side on the right side in the figure. In the end surface), an opening 2a into which a cleaning member 4 to be described later is inserted is formed at a substantially central portion in the thickness direction of the cleaning cartridge 2. A tunnel-shaped guide hole 2b for guiding the cleaning member 4 extends from the opening 2a toward the right side of the cleaning cartridge 2 in the drawing. The guide hole 2b is slightly bent downward in the drawing in the vicinity of the center of the cleaning cartridge 2, and the tip of the guide hole 2b is for focusing laser light on the magneto-optical disk. It is connected to an opening 2c formed corresponding to the position of the objective lens 12.

A circular recess 2d is formed in the center of the lower surface of the cleaning cartridge 2. When the cleaning cartridge 2 is mounted in the magneto-optical disk device 10, the magneto-optical disk is driven to rotate. The chucking portion 16a of the spindle motor 16 is designed to escape. On the other hand, the cleaning member 4 is formed by forming a cleaning portion 4b made of, for example, a cleaning cloth or the like on the tip end portion of an elastic rod-shaped member 4a. Then, when the cleaning portion 4b is inserted into the cleaning cartridge 2 through the opening 2a of the cleaning cartridge 2, the cleaning portion 4b is guided toward the back of the cleaning cartridge 2 while being guided by the guide hole 2b. Go At this time, since the rod-shaped member 4a is elastic, it deforms in accordance with the bending amount of the guide hole 2b, and the cleaning portion 4a projects from the opening 2c. Since the opening 2c is opened at a position corresponding to the position of the objective lens 12 as described above, the cleaning portion 4b protruding from the opening 2c comes into contact with the surface of the objective lens 12, and in this state. The surface of the objective lens 12 can be cleaned by rotating the cleaning member 4 around the central axis of the rod-shaped member 4a or by moving the cleaning member 4 to the front, rear, left, and right in the drawing.

Next, FIG. 2 is a view showing a state in which the cleaning cartridge is mounted on the magneto-optical disk device and the cleaning portion of the cleaning member is brought into contact with the objective lens. In FIG. 2, a spindle motor 16 for rotating the magneto-optical disk is provided at a substantially central portion of a base plate 18 which is a substrate of the magneto-optical disk device 10. On the base plate 18, a laser beam is focused on the medium surface of the magneto-optical disk, and a two-dimensional beam is formed for making the focused light spot follow each track on the medium surface. A carriage 14 on which an actuator (to which the objective lens 12 is attached) is placed is provided so as to be movable in the inner peripheral direction and the outer peripheral direction of the magneto-optical disk by means not shown.

Further, a side panel 20 constituting the external appearance of the magneto-optical disk device 10 is attached to the side surface of the base plate 18, and a front panel 22 is attached to the front surface which is the left side in the figure. ing. The front panel 22 is provided with an opening 22a for inserting a disc cartridge accommodating a magneto-optical disc into the magneto-optical disc device 10 at a portion slightly above the center in the height direction. There is. Then, in FIG. 2, the cleaning cartridge 2 is inserted into the opening 22a, and the cleaning cartridge 2 is positioned at the recording / reproducing position in the magneto-optical disk device 10 by a loading means (not shown). Is shown.

Next, the procedure for cleaning the objective lens using this cleaning cartridge will be described. First, as shown in FIG. 2, the cleaning cartridge 2 is inserted into the magneto-optical disk device 10 through the opening 22a of the front panel 22 and mounted at the recording / reproducing position in the magneto-optical disk device 10. Next, after the cleaning liquid is soaked into the cleaning portion 4b of the cleaning member 4, the cleaning portion 4b of the cleaning member 4 is inserted from the opening 2a formed on the left end surface of the cleaning cartridge 2 in the figure. To do. Then, when the cleaning portion 4b of the cleaning member 4 is inserted further into the cleaning cartridge 2, the cleaning portion 4b comes into contact with the surface of the objective lens 12. At this time, the carriage 14 is fixed to a predetermined initial position with respect to the base plate 18 when the magneto-optical disk device 10 is not operating. It is different depending on the type of the magneto-optical disk device. Therefore, regardless of whether the objective lens 12 is located on the inner peripheral side or the outer peripheral side, the cleaning unit 4b is long as illustrated so that the cleaning unit 4b contacts the objective lens 12. Has been done. As a result, the objective lens 12 can be cleaned corresponding to various magneto-optical disk devices that use the same disk cartridge.

Then, with the cleaning portion 4b in contact with the surface of the objective lens 12 in this manner, the end portion 4c of the rod-shaped member 4a of the cleaning member 4 is rotated as shown by the arrow in the figure. Also, it may be slid in the direction of the arrow. In this way, the surface of the objective lens 12 can be cleaned while the cleaning portion 4b of the cleaning member 4 is reliably in contact with the surface of the objective lens 12, and the cleaning of the objective lens 12 can be performed very easily. Can be done.

Next, FIG. 3 shows an example of when the cleaning cartridge 2, the cleaning member 4, and the cleaning liquid 6 are sold as a set. Thus, if the cleaning cartridge 2, the cleaning member 4, and the cleaning liquid 6 are sold as a set, even a general user can easily clean the objective lens 12 of the magneto-optical disk device 10, and always It is possible to obtain a high quality information signal.

As described above, in the cleaning cartridge of the one embodiment, since the guide hole for the provision of the cleaning member is provided, the cleaning member is simply inserted into the guide hole. The cleaning part of the above surely contacts the objective lens. Then, in this state, the object lens can be easily and reliably cleaned by rotating the cleaning member or moving it forward, backward, leftward or rightward. Moreover, since the wet cleaning can be performed by impregnating the cleaning liquid of the cleaning member with the cleaning liquid, the surface of the objective lens can be cleaned almost completely. Moreover, since the cleaning member can be disposable, it is possible to always perform clean cleaning. Furthermore, since the cleaning cartridge has a simple structure in which a guide hole for guiding the cleaning member is provided, the cost can be kept very low.

The present invention can be applied to modifications and variations of the above embodiments without departing from the spirit of the invention. For example, in the above embodiment, the cleaning member is manually operated, but it may be rotated by using a motor or the like. Further, although the case where the guide hole is provided has been described, the present invention is not limited to the guide hole and a groove-shaped guide portion may be provided.

Of course, the length of the cleaning portion 4b in the radial direction of the disk may be increased and the head may be moved back and forth. Further, a stopper for stopping the cleaning unit 4b at a predetermined position may be provided so that the objective lens is not excessively applied with force. Further, the cartridge for cleaning the magneto-optical disk has been described, but the present invention is not limited to this, and the invention is not limited to the magneto-optical disk, but can be similarly applied to any one that uses an optical disk housed in the cartridge. Is.

[0018]

[Effect of the device]

 As described above, according to the objective lens cleaning cartridge of the present invention, instead of the cartridge in which the optical disc is stored, the cartridge is mounted in the optical disc device, and the cleaning member is opened from the entrance side of the optical disc device. The tip of the cleaning member comes into contact with the surface of the objective lens by inserting the cleaning member in this state, and by moving the cleaning member in this state, it is possible to easily clean the objective lens. There is an effect.

[Brief description of drawings]

FIG. 1 is a side sectional view of a cleaning cartridge according to an embodiment.

FIG. 2 is a diagram showing a state in which a cleaning cartridge is mounted on an optical disk device.

FIG. 3 is a view showing a state in which a cleaning cartridge, a cleaning member, and a cleaning liquid are set.

[Explanation of symbols]

 2 Cleaning Cartridge 4 Cleaning Member 6 Cleaning Liquid 10 Magneto-optical Disk Device 12 Objective Lens 14 Carriage 16 Spindle Motor 18 Base Plate 20 Side Panel 22 Front Panel

Claims (2)

[Scope of utility model registration request] 1. A cartridge for cleaning an objective lens for cleaning an objective lens of an optical disk device using an optical disk housed in a protection cartridge, the cartridge having an outer shape substantially equal to the outer shape of the protection cartridge. An outer shell part that can be mounted on the optical disk device instead of the cartridge, and an entrance side formed on the outer shell part for receiving the protective cartridge of the optical disk device in a state of being mounted on the optical disk device. An opening that opens and a guide unit that is connected to the opening and guides the tip of a rod-shaped cleaning member that is inserted through the opening and that cleans the objective lens so as to contact the surface of the objective lens. An objective-lens cleaning cartridge comprising: 2. The objective lens cleaning cartridge according to claim 1, wherein the guide portion is formed of a tunnel-shaped hole formed in the outer shell portion.