JPS6252779A - Manual cleaning device for information recording disc - Google Patents

Abstract

PURPOSE:To clean completely without leaving a portion not cleaned by placing an information recording disc on a turntable, reciprocating a knob to close a cover case in plural times and reciprocating a cleaning member linearly from the outer periphery t the inner periphery in plural times rotating the turntable. CONSTITUTION:A compact disc 8 is placed on a turntable 6 and a cover case 2 is closed and a lug 22 is slided upward. A pivot arm 31 is moved pivotally setting a turning pin 33 as a supporting point, and the turning pin 33 is also rotated, making rotate a lower part turning pin 37 through a connecting projected bar 36 and a receiving groove 38, and a ratchet arm 41 is also move pivotally setting the turning pin 37 as the supporting point. A claw member mounted at the finger tip of the ratchet arm 41 is engaged with the gear of a ratchet gear part 13 at a rotating and driving member 12, making rotate the rotating and driving member 12 in a clockwise direction, the turntable 6 being rotated in the clockwise direction. At such a time, the claw member 42 is not rotated because the driving constraint projection 45 of the member is engaged with a pin 47. A wiper pad 28 makes contact with the recording plane of the compact disc 8 by the movement of the knob 22, cleaning the recording plane.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a cleaner for cleaning dirt on the recording surface of a disc on which information is digitally recorded, such as a compact disc or a laser disc. This invention relates to a manual cleaning device for an information recording disk that 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 signals recorded in a disc using a laser beam spot, are widely used.

In such a disc, since the pickup does not come into bi-mechanical contact with the recording surface, the disc can be played back semi-permanently without deteriorating performance under normal use. 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 disc as clean as possible. The disk is generally cleaned by wiping it with a soft cloth such as chamois leather. When wiping again,
If the disk is wiped circumferentially, it may be scratched by dust or the like, and such scratches will result in carrier flying during playback, so wiping in the radial direction is required. 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.

[Object of the Invention] An object of the present invention is to provide a manual cleaning device that automatically and evenly cleans the entire recording surface of a disk without the hassle of manual wiping as described above. .

[Structure of the Invention] The information recording disc cleaning device of the present invention includes a case body, a lid body that covers the upper part of the case body, and a turntable that holds the disc horizontally on the upper surface of the case body and rotatable about its axis. an elongated hole provided in the lid and extending linearly from at least the outer periphery of the turntable to the center; and an operating member placed on the lid and movable toward the center along the elongated hole. , located on the back of the lid,
A cleaning member is supported by the operating member through a long hole, and a cleaning member is provided on the bottom surface of the cleaning member so as to be in contact with the surface of the disc on the turntable, and one end is rotatably connected to the operating member on the back surface of the lid body. , a pivot arm member whose other end is pivotally supported on the back surface of the lid body, a pivot pin attached to the lower surface of the other end of this pivot arm member, and a pivot arm member that can be interlocked with and detachable from the pivot bottle. A connecting rotating pin is attached to the case body, and a ratchet arm is located inside the case body, pivots around a connecting rotating pin, and has a ratchet at the other end, and is attached coaxially to the bottom surface of the turntable. and a turntable gear having teeth on its peripheral surface that engage with the ratchet, and is characterized in that the turntable is rotated by one of the reciprocating movements of the operating member.

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

The cleaning device includes a rectangular box-shaped base case 1,
It has a transparent lid case 2 which covers the upper surface of the base 1 and whose one end is pivotally supported by the base case 1. 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 lower portion for exposing the turntable 6 is formed at the center of the upper surface portion 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 cushioning 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. This rotary drive member 12 has a solid cylindrical shape, and has a ratchet gear part 13 in which a plurality of ratchet teeth are provided at a predetermined interval in the same circumferential direction, and a ratchet gear part 13 has a shaft. A stop regulating portion 14 having a plurality of semicircular recesses provided at predetermined intervals on a circumferential surface spaced apart in the direction is formed. The ratchet gear portion 13 and the stop regulating portion 14 will be described later. An axial center portion of the rotational drive member 12 is rotatably supported on the bottom punching member 5 by a screw 15 inserted from the bottom plate member 5.

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 part 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. The lower end of the projection shaft 23 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 board 24 has a rectangular shape extending in a direction perpendicular to the direction in which the elongated hole 21 extends.
A groove extending in the extending direction and having a substantially inverted trapezoidal cross section is formed in the center of the lower surface. 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. On the upper surface of the wiper member 26, a fitting protrusion that can be inserted and fixed from the longitudinal direction into the groove of the wiper board 24 is provided. A cushion material 27 made of an elastic material is attached. Cushion material 27
The lower surface of the disc 8 has a sufficient thickness to contact the recording surface of the compact disc 8, and a wiper pad 28 made of natural or artificial chamois is adhered to the contact surface.

A pivot arm 31 is attached to the protrusion shaft 23 exposed in the gap between the lower surface of the upper plate 11 and the upper surface of the wiper substrate 24 by loosely fitting the protrusion shaft 23 into the elongated hole 32 thereof. 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. The lower end of this rotation pin 33 is connected to a support plate 3 provided on the back surface of the upper plate 19.
A locking protrusion 36 is formed on the lower end surface of the zero rotation pin 33, which is rotatably inserted into a hole 35 provided at the center of the rotation pin 33.

When the lid case 2 is closed, the lower rotating pin 3 is inserted into the base case 1 so that the lower end surface of the rotating pin 33 and its upper end surface are in contact with each other.
7 is provided. 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 inside the base case 1, and a pawl member 42 is attached to the pin 43 at the other end.
is pivotally mounted. The pawl member 42 is adapted to come into contact with the teeth of the ratchet gear portion 13 at one end thereof, and an elastic piece 44 is formed at the other end.

One elastic piece 44, on which a pivoting restriction protrusion 45 is formed at one end of the pawl member 42, engages with a locking pin 46 provided on the ratchet arm 41, and as shown in FIG. The counterclockwise rotation of the ratchet 41 is restricted. The pivot regulating protrusion 45 is.

When the pawl member 42 comes into contact with the teeth of the ratchet gear portion 13, it engages with a pin 47 provided on the ratchet arm 41 to prevent the pawl member 42 from rotating clockwise in FIG. It is.

Reference numerals 48 and 49 indicate regulation pins implanted in the bottom punching member 5 in order 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 bottoming member 5. The stop regulating member 51 has a semicircular engagement protrusion 52 that fits into the recess of the stop regulating portion 14 of the rotational drive member 12 at one end, an elastic piece 53 is formed at the other end, and the whole has a substantially L-shape. The zero elastic piece 53 engages with a locking protrusion 54 formed in the base case 1, and always presses the engaging protrusion S2 of the stop regulating member 51 toward the stop regulating part 14 side when elastic. There is.

A detachable cover member 61 is provided so as to close the elongated hole 21 of the lid case 2 when not in use. This cover part 6
1 has a width longer than the length in the direction perpendicular to the longitudinal direction of the elongated hole 21 and a length longer than the length of the elongated hole 21 in the longitudinal direction. A protrusion 62 that fits into the elongated hole 21 is integrally formed at the center of the back surface of the cover member 61. A brush 64 made of synthetic resin or the like is provided on one end surface 63 of the cover member 61 and extends in the same direction as the longitudinal direction of the cover member 61.
is installed. This brush 64 is housed in a stepped portion 65 formed on the side surface of the knob 22 when the cover member is attached.

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.
After placing the cover 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. This results in pivoting arm 3
1 pivots around a pivot pin 33 as a fulcrum. Pivoting arm 3
1, the pivot pin 33 also rotates, and the rotation is transmitted to the lower pivot pin 3 via the locking protrusion 36 and the receiving groove 38.
Rotate 7.

Since the lower rotation pin 37 is attached to the ratchet arm 41, the ratchet arm 41 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 as the ratchet arm 41 pivots, the pawl member engages with the teeth of the ratchet gear portion 13 of the rotational drive member 12, and the rotational drive member 12 is rotated to the third position. In the figure, the turntable 6 is rotated clockwise, 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 butt 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, as shown in FIG.
and the teeth of the ratchet gear portion 13 are disengaged. At this time, the side edge of the ratchet arm 41 comes into contact with the regulating pin 48, and 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 teeth of the ratchet gear 13, but the pawl member 42
At this time, the pawl member 42 rotates counterclockwise in FIG. A member 42 protrudes from the tip of the ratchet arm 41 so as to be engageable with the teeth.

When the pawl member 42 rides over the teeth of the ratchet gear 13, there is a possibility that the rotary drive member 12 will rotate in the opposite direction.

However, at this time, the engaging protrusion 52 of the stop regulating member 51
is fitted into the stop regulating portion 14 of the rotational drive member 12, so that the rotational drive member 12 is prevented from rotating even 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, when the knob 22 is returned to its original position, the compact disc 8 does not rotate, and the wiper pad 28 cleans the recording surface of the compact disc 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 disc 8, dirt etc. that have adhered to the wiper pad 28 can be removed from the cover member 6.
1 brush 64, the wiper pad 28 can be used for a long period of time.

When the wiper pad 28 becomes very dirty and needs to be replaced.

Holding the wiper board 24 and wiper member 26 in your hands,
Since it can be easily removed by sliding it in the lateral direction in FIG. 6, it can be replaced with a new wiper pad 28 together with the wiper member 26.

[Effects of the Invention] As described above, the cleaning device of the present invention can be realized by simply placing an information recording disk such as a compact disk or a laser disk on a turntable and moving the knob that closes the lid case back and forth several times by hand. Easy operation, no need to rotate the turntable.

In addition, the cleaning material is reciprocated several times approximately linearly from the outer periphery to the inner periphery of the disk. Therefore, the entire surface of the disk can be completely cleaned without leaving any residue. Also.

The structure is simple, and a cleaning device that is lightweight and can be used semi-permanently can be provided at low cost.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the cleaning device of the present invention, FIG. 2 is a perspective view showing the lid case in an open state,
FIG. 3 is a plan view showing the lid case 2 in a closed state with a portion cut away, FIG. 4 is a vertical sectional view of FIG. 3, and FIG. 5 is a bottom view showing the bottom punching member with a portion cut away. FIG. 6 is a sectional view of the knob, and FIG. 7 is a perspective view of the cover member. In the drawing, l is the base case and 2 is the lid case. 6 is a turntable, 8 is a compact disc, 12 is a rotational drive member, 22 is a knob, 28 is a wiper pad,
31 is a pivot arm, 33 is a pivot pin, 37 is a lower pivot pin, 41 is a ratchet arm, 51 is a stop regulating member, 6
1 is a cover member. Patent applicant Audio Technica Co., Ltd. Agent Patent attorney Takuya Ohara Figure 3 Figure 4 Figure 5 Figure 6

Claims (3)

[Claims] (1) A manual cleaning device for a disk on which information is digitally recorded, which includes a case body, a lid covering the top of the case body, and a device that cleans the disk horizontally and along its axis on the top surface of the case body. a turntable rotatably held about the turntable; a long hole provided in the lid and extending linearly from at least the outer periphery of the turntable to the center thereof; and a long hole placed on the lid and the long hole. an operating member that is movable toward the center along the direction of the turntable; a cleaning member provided to be in contact with the lid, and a pivot arm having one end rotatably connected to the operating member on the back surface of the lid and the other end pivotally supported on the back surface of the lid. a pivot pin attached to the lower surface of the other end of the pivot arm member; a connecting pivot pin attached to the case body so as to be able to interlock with the pivot pin and to be detachable; and a pivot pin located within the case body. a ratchet arm that pivots about the connecting rotation pin as a fulcrum and has a ratchet at the other end; and a ratchet arm that is coaxially attached to the lower surface of the turntable and has teeth on its peripheral surface that engage with the ratchet. 1. A manual cleaning device for an information recording disc, comprising a turntable gear, the turntable being rotated by one of the reciprocating movements of the operating member. (2) In claim 1, the ratchet is pivotally attached to the other end of the ratchet arm, and the other end has an elastic piece that engages with the ratchet arm, so that the ratchet A manual cleaning device for an information recording disc, wherein the ratchet engages with the teeth and rotates the turntable only when the arm pivots in one direction. (3) In claim 1, the circumferential surface of the turntable gear has a plurality of recesses spaced apart by a length equal to the amount of rotation rotated by the pivoting of the ratchet arm in one direction. The ratchet arm is provided with a regulating member within the case main body, one end of which elastically engages within the case main body, and the other end of which engages releasably with the recess, and the regulating member allows the ratchet arm to be A manual cleaning device for an information recording disk, characterized in that the turntable is prevented from rotating when moving in the other direction.