JPS61217950A - Cleaning device for reproducing stylus - Google Patents

Abstract

PURPOSE:To remove dust adhering to the vicinity of the tip part of a reproducing stylus and to make a player body small in size and light in weight by bringing the reproducing stylus into pressure-contact with a cleaning member consisting of a low- hardness material such as rubber, sponge, etc., in a state that an arm housing and the cleaning member have stopped. CONSTITUTION:A reproducing stylus which has ended the reproduction moves in the direction as indicated with an arrow A toward a stand-by position, and detects a cleaning position, and thereafter, the reproducing stylus stops its movement, and the reproducing stylus is made brought in to pressure-contact with a cleaning member 6 being in a stop state by a stylus pressure applying means. In this case, the cleaning member 6 consists of a low-hardness material such as rubber, sponge, etc., therefore, by elastic deformation, the tip part to which dust of the reproducing stylus has adhered to the cleaning member 6 so that the whole is wrapped uniformly, and when the reproducing stylus is separated, the dust is removed by adhering to the cleaning member 6. By repeating the joint and separation of the reproducing stylus and the cleaning member once or plural times, the tip part of the reproducing stylus can be cleaned completely. After the cleaning has been ended, the reproducing stylus moves to the stand-by position.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to capacitive information signal reproducing devices.In recent years, capacitive information signal reproducing devices (hereinafter referred to as video disks) have also gradually been used. It has become popular and used under various environmental conditions.

However, as the disc is used in various environments, the influence of various types of dust present in the sliding contact area between the disc and the reproducing needle has become a problem.

In other words, when viewed microscopically, the sliding contact area between the disc and the playback stylus is extremely dirty due to dust in the air combined with the disc material. The dust often adheres to the sliding contact surface of the regenerating needle and its vicinity, and in that case, it is necessary to clean it by some method. . Conventionally, as a method for cleaning regenerated needles, a method of wiping the regenerated needle with a cleaning pad, brush, etc. before or after the regeneration operation is started or after the regeneration operation has been frequently used.

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An example of the Fukuremoto σ) Sanraku device will be explained.

FIG. 3 shows an example of a general configuration of the player.

In FIG. 3, 1 is a rotationally driven disk, 2 is a player base, 3 is an arm housing that moves in the radial direction of the disk, 4 is a pickup having a playback needle 5 built into the arm housing, and 6 is a cleaning device. It is a member.

FIG. 4 shows an example of a conventional cleaning device for recycled needles.

In FIG. 4, 11 is a cleaner base, 10 is a rotary table, 6 is a cleaning member attached to the rotary table 10, and 7 is a cleaning member attached to the rotary table 10.
9 is a rotating shaft, 9 is a threaded coil spring, and 8 is a cleaner rod. 6 is a regeneration needle fixed to the tip of the cantilever 7. The rotating shaft 7 is press-fitted into the cleaner base 11, and the rotating table 1o having the cleaner member 6 is inserted into the rotating shaft 7 with a slight gap. The cleaner (RAD 8) is held by the cleaner base 11 and is in contact with the rotary table 10.The torsion coil spring 9 is attached to the cleaner base 1
1 and O in contact with the cleaner loft 8. The operation of the cleaner configured as above will be described below.

For example, as shown in Patent Application No. 57-79618, the regeneration needle 6 that has completed the regeneration operation moves along the arrow A in FIG. 1 as the arm housing moves in parallel to the standby position.
move in the direction of The cleaning position is detected during the movement, and after sliding on the cleaning member 6 and removing dust by means of a needle pressure applying means (not shown), the arm housing holding the regenerating needle 5 is moved. The cylindrical portion of the cleaner rod 8 is pushed away by the side wall of the cleaner rod 8, and the rotary table 1o is slightly rotated to change the sliding portion between the regenerating needle 5 and the cleaner member 6 at any time.

When moving to the regeneration operation, the arm nozzle moves in the opposite direction to arrow A, and the cleaner loft 8 is pushed back in the direction of arrow B by the screw coil panel 9, but at this time the cleaner rod 8 is separated from the rotary table 10. Because of this structure, the rotating table 1o always rotates in only one direction.

Problems to be Solved by the Invention However, the above configuration has the problem that dust adhering to the vicinity of the reproduction needle cannot be completely removed, and the dust accumulates as the number of reproductions increases.

In view of the above-mentioned problems, the present invention provides a cleaning device for recycled needles that can obtain a sufficient masquerading effect.

Means for Solving the Problems In order to solve the above-mentioned problems, the regenerated needle cleaning device of the present invention is provided with the cleaning device made of a low hardness material such as rubber or sponge when the arm housing and the cleaning member are in a stopped state. According to the present invention, the regenerated needle is pressed against the low-hardness cleaning member, so that the entire tip of the regenerated needle is uniformly wrapped. contact the cleaning member,
This is to completely clean away the dust that has adhered to it during subsequent separation.

Example 1 Regarding a regenerated needle cleaning device according to an embodiment of the present invention,
This will be explained with reference to the drawings.

FIG. 1 shows a perspective view of a regenerated needle cleaning device in one embodiment of the present invention.

In FIG. 1, a cleaning pad 6 made of a low-hardness material such as rubber or sponge is affixed to a rotary table 1o as a cleaning member, and when the arm housing and the cleaning member are stopped, a regenerating needle is pressed into contact with the cleaning member. It is structured to encourage

The operation of the regenerated needle cleaning device constructed as described above will be described below with reference to FIG. 1.

First, FIG. 1 shows the configuration and operation of a regenerated needle cleaning device in one embodiment, in which the regenerated needle moves in the direction of arrow A toward the standby position after completion of regeneration, and detects the cleaning position. After that, the regenerating needle stops moving, and the regenerating needle is pressed into contact with the stopped cleaning member 6 by the needle pressure applying means. At this time, since the cleaning member is made of a low-hardness material such as rubber or sponge, it is elastically deformed, and the tip of the recycling needle with dust attached comes into contact with the cleaning member 6 so that the entire part is evenly wrapped, and the cleaning member 6 is recycled. When the needle separates, the dust adheres to the cleaning member 6 and is removed.

By repeating the joining and separation of the regenerating needle and the cleaning member once or multiple times, the tip of the regenerating needle can be completely cleaned.

After finishing the cleaning, the regeneration needle moves to the standby position.

In addition, the regeneration needle 5 is not only pressed into contact with the cleaning member 6, but after the contact is made, a DC voltage or an AC voltage is applied to the control tracking coil or jitter coil of the pickup cartridge to move the regeneration needle back and forth or back and forth. After vibrating from side to side, it may be separated.

Further, as shown in FIG. 2, the cleaning member 6 may be disposed not parallel to the lower surface of the arm housing but at a predetermined angle θ.

In addition, in this embodiment, the arm housing and the
Since the regenerating needle is cleaned by separating the regenerating needle from the cleaning member while the cleaning member is stopped, the position of the cleaning member is not limited to between the standby position and the regenerating position. If this is done, the standby position can be set closest to the outermost periphery of the disc, and extra space can be eliminated, making it possible to make the player body smaller and lighter.

Effects of the Invention As described above, according to the present invention, the tip of the regenerated needle is pressed into contact with the cleaning member made of a low hardness material such as rubber or sponge when the arm housing and the cleaning member are stopped. It is possible to remove dust adhering to the vicinity of the parts, and also has the following effects.

In other words, in the present invention, since the regeneration needle is cleaned while the arm housing and the cleaning member are stopped, cleaning is possible even in the arm housing standby position, and the interval between the standby position and the regeneration position can be set to the minimum, and the player main unit can be cleaned accordingly. It can also be made smaller and lighter.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a regenerated needle cleaning device according to one embodiment of the present invention, and FIG. FIG. 3 is a schematic layered view of the video disk player, and FIG. 4 is a perspective view of a conventional recycling needle cleaning device. 1...Disc, 2...Player base, 3...Arm housing, 4...
・Pickup, 6... Regeneration needle, 6...
・Cleaning pad, 1o... Turntable.゛Name of agent Patent attorney Toshio Nakao and 1 other person10
---Once the base fl---7 warnin 7 heh, sl4-m-maquod f2 δ---reproduction teacher, 6---Cleaning sound p material Fig. 4

Claims (2)

[Claims] (1) It has a casing that can be moved in the radial direction with respect to the information recording disk, and a pickup cartridge containing a reproduction needle that slides into contact with the information recording disk and detects the information signal is built in the casing, and A stylus pressure applying means for the regenerating needle and a cleaning member are provided below the housing, and the regenerating needle is pressed into contact with the cleaning member by the stylus pressure applying means when the casing and the cleaning member are stopped. Features: Recycled needle cleaning device. (2) The regenerated needle cleaning device according to claim 1, wherein the cleaning member is made of a low hardness material such as rubber, cavernous body, or nonwoven fabric.