JPH0356934Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Field of application of the invention] This invention relates to a cleaner that cleans dirt on the recording surface of discs on which information is digitally recorded, such as compact discs and laser discs. The present invention relates to an improvement in a cover device for a manual cleaning device for an information recording disk, which cleans the recording surface and rotates the disk by linearly reciprocating a member in the radial direction of the disk.

[Technical background of the invention] Compact discs and laser discs, which reproduce images and sounds by converting information recorded on the disc into information signals using a laser beam spot, are widely used. In such a disk, since the pickup does not make mechanical contact with the recording surface, playback can be performed semi-permanently under normal use without deteriorating performance. However, if dirt, fingerprints, or other dirt adheres to the recording surface due to long-term use, the image quality and sound quality will deteriorate. Therefore, it is necessary to keep the surface of the disk as clean as possible. To clean the disk, it is common practice to wipe it with a soft cloth such as chamois leather. Furthermore, when wiping, wiping in the circumferential direction of the disk may cause scratches due to dirt, etc., and such scratches will result in carrier skipping during playback, so it is required to wipe in the radial direction. has been done. However, in the case of hand wiping, there are sensory factors involved, and there are differences in how often and unevenly the wiping is done depending on the person.

Therefore, a manual cleaning device has been provided that eliminates the trouble of wiping by hand as described above and automatically and evenly cleans the entire recording surface of the disk. This kind of cleaning device is constructed by reciprocating the operation knob located on the top surface of the lid body along a long hole provided in the lid body from the circumference to the center of the disk. The disk is cleaned by a cleaning member which is placed on the back side of the lid and comes into contact with the recording surface of the disk. As mentioned above, the elongated hole is a guide hole for the operating knob, and is essential when in use, but when not in use, dirt and the like can enter through the elongated hole and stain the top of the turntable.

[Purpose of the invention] Therefore, the purpose of the invention is to provide a cover device that closes the above-mentioned elongated hole and has a brush for removing dirt from the cleaning member.

[Structure of the invention] The cover device of the information recording disk cleaning device of this invention has a case body, a lid body that covers the upper part of the case body, and a disk on which information is digitally recorded on its surface, which can be rotated. a turntable to be held; a long hole provided in the lid and extending linearly from at least the outer periphery of the turntable to the center; and a turntable written on the lid that moves toward the center along the long hole. In a manual cleaning device that rotates a turntable and cleans the recording surface of a disk by reciprocating the operating member along a long hole, the manual cleaning device has a manual cleaning device that can be attached and removed so as to cover the long hole. A cover device that is freely attached and has an area larger than the area of the elongated hole,
A brush is attached to the end face on the operating member side, and when this brush is attached to the lid, it is housed in a recess provided in the side surface of the operating member.

[Example] An example of this invention shown in the drawings will be described below. In this embodiment, the information recording disk is a compact disk.

The cleaning device has a rectangular box-shaped base case 1 and a transparent lid case 2 that covers the top surface of the base 1 and whose one end is pivotally supported by the base case 1. ing. The base case 1 has a hollow portion formed inside by four side portions 3, a top surface portion 4, and a bottom plate member 5. An opening 7 for exposing the turntable 6 is formed in the center of the upper surface part 4. A central shaft 9 that is fitted into the center hole of the compact disc 8 projects from the center of the upper surface of the turntable 6 . A cushion material 11 such as felt is attached to the upper surface of the turntable 6.

A rotary drive member 12 is integrally attached to the back surface of the turntable 6 coaxially with the turntable 6. The rotary drive member 12 has a solid cylindrical shape, and includes a ratchet gear portion 13 in which a plurality of ratchet teeth are provided at predetermined intervals in the same circumferential direction, and a ratchet gear portion 13.
A stop regulating portion 14 having a plurality of semicircular recesses provided at predetermined intervals on a circumferential surface spaced apart in the axial direction is formed. The ratchet gear portion 13 and the stop regulating portion 14 will be described later. The axial center of the rotational drive member 12 is connected to the bottom plate member 5
It is rotatably supported on the bottom plate member 5 by screws 15 inserted therein.

The upper plate 19 of the lid case 2 is provided with a long hole 21 extending from the center of the end opposite to the pivoting side to the middle of the turntable 6. A protruding shaft 23 provided at the center of the lower surface of the knob 22 is slidably inserted into the elongated hole 21. Protrusion shaft 23
The lower end protrudes from the lower surface of the lid case 2, and a wiper board 24 is attached to the lower end surface with screws 25. The wiper substrate 24 has a rectangular shape extending in a direction perpendicular to the extending direction of the elongated hole 21, and a groove having a substantially inverted trapezoidal cross section extending in this extending direction is formed at the center of the lower surface thereof. A wiper member 26 having approximately the same size as the wiper board 24 is attached to the lower surface of the wiper board 24. The upper surface of the wiper member 26 is provided with a fitting protrusion that can be inserted and fixed from the longitudinal direction into the groove of the wiper board 24, and the lower surface of the wiper member 26 is provided with an elastic material having approximately the same size as the wiper member 26. A structured cushion material 27 is attached. The lower surface of the cushion material 27 has a sufficient thickness to contact the recording surface of the compact disk 8, and a wiper pad 28 made of natural or artificial chamois is adhered to the contact surface.

A pivot arm 3 is attached to a protrusion shaft 23 exposed in the space between the lower surface of the upper plate 11 and the upper surface of the wiper board 24.
1 is attached by loosely fitting the protrusion shaft 23 into the elongated hole 32. The elongated hole 32 extends in the longitudinal direction of the pivot arm 31. The other end of the pivot arm 31 is attached to the upper end of a pivot pin 33 that is implanted downward. This rotation pin 3
3 is rotatably inserted into a hole 35 provided at the center of a support plate 34 provided on the back surface of the upper plate 19. A locking protrusion 36 is formed on the lower end surface of the rotation pin 33 and extends in the diametrical direction thereof.

A lower pivot pin 37 is provided in the base case 1 so that the lower end surface of the pivot pin 33 and its upper end surface come into contact when the lid case 2 is closed. The upper end surface of the lower rotation pin 37 projects slightly above the upper plate 19, and a receiving groove 38 into which the locking protrusion 36 is fitted is formed in the center of the upper end surface in the diametrical direction. The lower end of the lower pivot pin 37 is attached to one end of the ratchet arm 41. The ratchet arm 41 is located within the base case 1, and a pawl member 42 is pivotally attached to the other end by a pin 43. The pawl member 42 is adapted to come into contact with the teeth of the ratchet gear portion 13 at one end thereof,
An elastic piece 44 is formed at the other end. A pivot regulating protrusion 45 is formed at one end of the pawl member 42 . The elastic piece 44 is attached to the ratchet arm 4.
1, and restricts the rotation of the ratchet 41 in the counterclockwise direction using the pin 43 as a fulcrum in FIG. Pivotal projection 4
5 is for engaging a pin 47 provided on the ratchet arm 41 when the pawl member 42 comes into contact with the teeth of the ratchet gear portion 13 to prevent the pawl member 42 from rotating clockwise in FIG. belongs to. Reference numerals 48 and 49 indicate regulating pins implanted in the bottom plate member 5 to regulate the amount of pivoting of the ratchet arm 41.

A stop regulating member 51 is pivotally mounted in the base case on the side that is pivotally connected to the lid case 2 by a pin 50 whose lower end is implanted in the bottom plate member 5. The stop regulating member 51 has a semicircular engagement protrusion 5 at one end that fits into the recess of the stop regulating portion 14 of the rotational drive member 12.
2, and an elastic piece 53 is formed at the other end, and the whole has a substantially L-shape. The elastic piece 53 is attached to the base case 1
It engages with a locking protrusion 54 formed therein, and always elastically presses the engaging protrusion 52 of this stop regulating member 51 toward the stop regulating part 14 side.

A removable cover member 61 is provided to cover the elongated hole 21 of the lid case 2 when not in use. This cover member 61 has a width that is longer than the length in the direction perpendicular to the longitudinal direction of the elongated hole 21 and a length that is longer than the length of the elongated hole 21 in the longitudinal direction. At the center of the back surface of the cover member 61 is a protrusion 6 that fits into the elongated hole 21.
2 are integrally formed. A brush 64 made of synthetic resin or the like is attached to one end surface 63 of the cover member 61 so as to extend in the same direction as the longitudinal direction of the cover member 61. This brush 64 is
When the cover member is attached, it is housed in a stepped portion 65 formed on the side surface of the knob 22.

Next, the operation of this invention will be explained. First, in FIG. 1, after removing the cover member 61,
Open the lid case 2 as shown in FIG. Next, after placing the compact disc 8 on the turntable 6, the lid case 2 is closed again (see FIG. 3). In this state, put your hand on the knob 22 and slide the knob 22 upward in FIG. 3. As a result, the pivot arm 31 pivots about the pivot pin 33 as a fulcrum. As the pivot arm 31 pivots,
The rotation pin 33 also rotates, and the rotation is caused by the locking protrusion 36
The lower rotation pin 37 is then rotated via the receiving groove 38. The lower rotation pin 37 is connected to the ratchet arm 4.
1, so the ratchet arm 4
1 also pivots about the rotation pin 37 as a fulcrum. A pawl member 42 is attached to the tip of the ratchet arm 41, and when the ratchet arm 41 pivots, the pawl member engages the ratchet gear portion 1 of the rotational drive member 12.
3, the rotary drive member 12 is rotated clockwise in FIG. 3, and the turntable 6 is also rotated clockwise. At this time, the pawl member 42 does not rotate because its pivot restricting protrusion 45 engages with the pin 47.

As the knob 22 moves, the wiper pad 28 at the bottom of the knob 22 comes into contact with the recording surface of the compact disc 8 and cleans the recording surface. When the knob 22 is located at the rear end of the elongated hole 21, the engagement between the pawl member 42 and the teeth of the ratchet gear portion 13 is released, as shown in FIG. At this time, the side edge of the ratchet arm 41 comes into contact with the regulating pin 48,
The amount of pivoting of the ratchet arm 41 is regulated. When the knob 22 is again slid back to the position shown in FIG. 3, the ratchet arm 41 also pivots clockwise in FIG. At this time, the pawl member 42 comes into contact with the tooth portion of the ratchet gear portion 13, but since the pawl member 42 is rotatable about the pin 43 as a fulcrum, it climbs over the tooth portion. At this time, pawl member 4
2 rotates counterclockwise in FIG. 5 with the pin 43 as a fulcrum, but after getting over the elastic piece 44, the pawl member 42 protrudes from the tip of the ratchet arm 41 again so that it can engage with the teeth. .

When the pawl member 42 rides over the teeth of the ratchet gear portion 13, there is a possibility of causing the rotary drive member 12 to rotate in the opposite direction. However, at this time, the engagement protrusion 52 of the stop regulating member 51 is fitted into the stop regulating portion 14 of the rotary drive member 12, so that the rotary drive member 12 does not rotate with a light rotational force. That is, a plurality of stop regulating portions 14 are provided at length intervals equivalent to the amount of rotation of the rotational drive member 12 by the pawl member 42. Therefore, knob 2
2 to its original position, the compact disk 8 does not rotate, and the wiper pad 28 cleans the recording surface of the compact disk 8 linearly from the center to the circumference.

In this way, by reciprocating the knob 22 multiple times, the recording surface of the compact disc 8 can be cleaned completely and evenly.

By cleaning the compact disk 8, dirt adhering to the wiper pad 28 can be scraped off by the brush 64 of the cover member 61, and the wiper pad 28 can be used for a long period of time. wiper pad 28
When it becomes very dirty and needs to be replaced,
The wiper board 24 and the wiper member 26 can be easily removed by holding them in your hand and sliding them in the horizontal direction as shown in FIG.
You can exchange it with .

[Effects of the invention] As described above, the cover device of this invention can cover the long hole when the cleaning device is not in use, which not only prevents dirt from entering through the long hole, but also protects the side surface of the cleaning device. Since it has a brush, the cleaning member can also be cleaned. Since this brush is configured to be housed in the recess of the operating knob when the cover device is attached, it is possible to prevent dust from the outside air from adhering to the brush.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the cleaning device of this invention, Fig. 2 is a perspective view showing the lid case 2 in an open state, and Fig. 3 is a perspective view showing the lid case 2 in a closed state with a part cut away. The plan view shown in Figure 4 is
5 is a partially cutaway bottom view of the bottom plate member, FIG. 6 is a sectional view of the knob portion, and FIG. 7 is a perspective view of the cover member. In the drawings, 1 is a base case, 2 is a lid case, 6 is a turntable, 8 is a compact disk, 21 is a slot drive member, 22 is a knob, 28 is a wiper pad, 61 is a cover member 64 is a brush.

Claims (1)

[Scope of Claim for Utility Model Registration] A case body, a lid body covering the upper part of the case body, a turntable rotatably holding a disk on which information is digitally recorded, and a turntable provided on the lid body. an elongated hole extending linearly from at least the outer peripheral edge of the turntable to the center thereof, and an operating member written on the lid body and movable toward the center along the elongated hole. and a manual cleaning device that rotates the turntable and cleans the recording surface of the disc by reciprocating the operating member along the elongated hole, the manual cleaning device being removably attached so as to cover the elongated hole. The cover device has an area larger than the area of the elongated hole, and a brush is attached to the end face on the operating member side, and when the brush is attached to the lid body, the brush is attached to the operating member. 1. A cover device for a manual cleaning device for an information recording disk, characterized in that the cover device is housed in a recess provided in a side surface of the device.