JPS61168154A - Cleaning device for reproducing stylus - Google Patents

Abstract

PURPOSE:To clean the tip of a reproducing stylus completely by using plural cleaning pads made of different materials as a cleaning member. CONSTITUTION:The reproducing stylus 5 after reproduction moves towards its stand-by position as shown by an arrow A and a cleaning position is detected to slide the reproducing stylus 5 on cleaning members 6a and 6b by a stylus force applying means. At this time, one cleaning pad, e.g. 6a uses a short-nap material and cleans principally a sliding surface where the reproducing stylus 5 slides on a disk 1 and the other cleaning pad, e.g. 6b uses a long-nap material to remove dust sticking on the periphery of the tip of the reproducing stylus 5. Thus, the cleaning pads 6a and 6b made of different materials are used, so the reproducing stylus 5 is cleaned completely.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cleaning device for a reproduction needle of a capacitive information signal reproduction device.

Prior Art 27. In recent years, capacitive information signal reproducing devices (hereinafter referred to as Hizuo disks) have gradually become popular and have come to be 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 stability of the contact is hindered, causing trouble in reading the information signal.

The dust often adheres to the sliding 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 recycled needles, a method of wiping the recycled needles with a cleaning pad, brush, etc. before or after the regeneration operation is started or after the regeneration operation has been frequently used.

An example of the conventional cleaning device mentioned above will be described below with reference to the drawings.

3 Be-7 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, 1o is a rotary table, 6 is a cleaning member attached to the rotary table 10, and 7
9 is a rotating shaft, 9 is a torsion coil spring, and 8 is a cleaner rod. 6 is a regenerated needle fixed to the tip of the cantilever needle 7. The rotating shaft 7 is press-fitted into the cleaner base 11 9, and the rotating table 1o having the cleaner member 6 is inserted into the rotating shaft 7 with a slight gap. The cleaner rod 8 is held by a cleaner base 11 and is mounted on a rotary table 1o.
is in contact with. The torsion coil spring 9 is in contact with the cleaner base 11 and the cleaner rod 8.

The five operations of the cleaner configured as above will be explained below.

After completing the regeneration operation, the regeneration needle 5 moves in the direction of the arrow in FIG. 1 as the arm housing moves in parallel to the standby position. During the movement, the cleaning position is detected, and the arm holding the regenerating needle 5 slides on the cleaning member 6 and removes dust using a needle pressure applying means (not shown). The cylindrical part of the cleaner rod 8 is pushed away by the side wall of the housing, and the rotary table 10 is slightly rotated to change the sliding part of the regenerating needle 5 and the cleaner member 6 at any time.

When moving to the regeneration operation, the arm housing moves in the opposite direction of the arrow and the cleaner rod 8 is pushed back in the direction of arrow B by the torsion coil spring 9, but at this time the cleaner rod 8 is configured to be separated from the rotary table 1o. Therefore, the turntable 10 always rotates in only one direction.

(Japanese Unexamined Patent Publication No. 58-196603) Problems to be Solved by the Invention However, in the above configuration, it is very difficult to select a cleaning member of cleaning member = 6, and it is difficult to select a cleaning member made of a single material. However, there was a problem in that a sufficient leaning effect could not be obtained.

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

Means for Solving the Problems In order to solve the above-mentioned problems, the recycled needle cleaning device of the present invention has a structure in which the cleaning member includes a plurality of cleaning bands made of different materials.

According to the present invention, the tip of the regenerated needle can be completely cleaned by sliding the regenerated needle over a plurality of types of cleaning pads made of different materials.

EXAMPLE Hereinafter, a regenerated needle cleaning device according to an embodiment of the present invention will be described with reference to the drawings.

Figure 1 shows the regenerated needle in one embodiment of the present invention. FIG. 3 shows a perspective view of the cleaning device.

In FIG. 1, two types of cleaning pads ea and 6b made of different materials are pasted on a rotary table 1o and used as a cleaning member.

The operation of the regenerated needle cleaning device constructed as described above will be explained below with reference to FIGS. 1 and 2.

Fig. 1 shows the configuration and operation of the regenerated needle cleaning device. After regeneration, the regenerated needle moves toward the standby position in the direction of the arrow, detects the cleaning position, and removes the needle. The cleaning members 6a and 6b clean the regenerated needles by the pressure applying means.
slide on top. At this time, one cleaning band, e.g. 6a, is made of a material with short bristles and mainly cleans the sliding contact surface where the regenerated needle, disc, and glue come into sliding contact, and the other cleaning band, e.g. 6b, is made of a material with short bristles. The tip of the recycled needle can be completely cleaned by using a long material to remove dust mainly attached to the vicinity of the tip of the recycled needle.

Furthermore, the application of stylus pressure 7/, - when sliding the cleaning member is not limited to sliding over a certain period as shown in FIG. 1, but for example, as shown in FIG. It may also be one that slides intermittently.

Effects of the Invention As described above, the present invention uses multiple types of cleaning pads made of different materials as cleaning members, thereby cleaning the sliding surface where the playback stylus and disk come into contact and eliminating dust that adheres to the vicinity of the tip of the playback stylus. By removing each one individually, the tip of the regenerated needle can be completely cleaned.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a recycling needle cleaning device in one embodiment of the present invention, FIG. 2 is a perspective view of another embodiment, and FIG. 3 is a schematic configuration diagram of a video disc player to which the present invention is applied.
FIG. 4 is a perspective view of a conventional regenerated needle cleaning device. DESCRIPTION OF SYMBOLS 1... Disc, 3... Arm housing, 5... Regeneration needle, 6... Cleaning member, 8... Cleaner rod, 9 ...
...Torsion coil spring, 10...Rotary table, 1
1...Cleaner base. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Diagram to--First class u---Cleaning base Diagram 2

Claims (1)

[Claims] It has a housing-like arm housing that can be moved in a radial direction with respect to the information recording disk, and a pickup cartridge that includes a reproducing needle that slides into contact with the information recording disk and detects an information signal is built in the arm housing. , a stylus pressure applying means for pressing and contacting the reproduction stylus over a certain period while the arm housing moves between the standby position and the information recording disk; and a plurality of cleaning pads made of different materials below the arm housing. What is claimed is: 1. A cleaning device for recycled needles, comprising: a cleaning member;