JPS59113540A - Cleaning device for pickup element - Google Patents

Abstract

PURPOSE:To perform surely and smoothly operation without being affected by the variance in the accuracy of parts, external oscillation, etc. by the constitution wherein a cleaning roller rotates and contacts a reproducing stylus in the stage of removing a jacket or disc upon ending of playback and cleaning is thus accomplished. CONSTITUTION:A jacket 11 is drawn from a player body, and while the jacket moves from the position of a code S to R, the depressed state of a function lever 68 is released, and a cleaner lever 51 is forced upward by the counterclockwise turning force of a tension spring 54. A sublever 57 and a roller 59 move gradually upward as well while rotating counterclockwise and a cleaning cloth 64 adhered to the roller 59 contacts under rotation a reproducing stylus 75 in an arm 28, thereby cleaning the stylus part. The ascending position of the lever 57 and the roller 59 is regulated by the adjusting screw 73 of a lateral guide 71, and the adjustment of the height between the cloth 64 and the stylus 75 is accomplished by adjusting the height of the lever 68 with the use of the screw 73.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a pickup element cleaning device for automatically cleaning a pickup element such as a playback needle in a recording disc playback device such as a video disc player. Regarding.

For example, unlike conventional records, signals on video disks and audio PCM records are recorded using a digital signal recording method using minute bits. Therefore, when playing video discs and audio PCM records, it is necessary to prevent dirt and dust from getting onto them as much as possible. If dirt or dust adheres, even if it is not noticeable on conventional records, on such video discs, etc., the quality of the reproduced sound and reproduced images will be significantly degraded. In addition, there is a problem in that the pickup elements such as the reproduction needle are easily damaged. That is, a highly accurate reproduction needle is required to reproduce signals from a video disc or PCM record on which signals have been recorded according to the recording method described above. However, this leads to the point that the recycled needle is weak in terms of durability against obstacles such as dirt and dust.

In view of the above points, P
A reproducing apparatus for recording discs such as commercial records is configured so that the video disc or the like can be loaded onto or removed from the reproducing apparatus main body without touching the disc directly.

FIG. 1 is a perspective view showing an example of a video disc brake 11 constructed as shown above. In the figure, 11 is a jacket. An opening 12 is formed in one side of this jacket 11. 13 is a video disc. 14 is a spine.

This spine 14 is housed in the jacket 11 together with the video disc 13. A lid part 15 is formed on one side of the spine 14 to close the frontage part 12 of the jacket 1'1. Further, a ring-shaped hole d5 is formed in the center of the spine 14, and the video disc 13 is accommodated here. 16 is the player body. The player body 16 is provided with a jacket insertion opening 17 for inserting the jacket 11 and various @ operation buttons 18.

When inserting the jacket '11, insert the jacket 1 into the player body 16 from the frontage 12 side of the jacket 110 through the jacket insertion opening 17, as shown by the arrow in the figure.
Insert 1.

FIG. 2 is a perspective view showing the overall internal structure of the player main body 16. In the figure, 19 is a chassis, 20 is a turntable, 21 is a slider for raising and lowering the turntable 20, and 22 is a support for supporting the spine 14 and the video disc 13. 23.24 is the sub-chassis, 25.26 is the jacket 11 and the player body 16.
A guide rail 27 for guiding the spine 14 inward is a chucking device for holding the spine 14 fixedly. 28 is a pickup arm. This pickup arm 28 is equipped with a regeneration needle. This pickup arm 2
8 is driven in the radial direction of the video disc 13 by an arm motor 281.

29 is a shutter device. This shutter installation @29
has two shutters 30.3'l.

32 is a regenerated needle cleaner device for cleaning the regenerated needle mounted on the pickup arm 28.

Here, the operation of loading the video disc 13 into the player body 16 and playing it, and the act of taking out the video disc 13 from the player body 16 after the playback is finished, will be explained using FIGS. 3 and 4. . As shown in FIG. 3, when the jacket 11 containing the video disc 13 and the spine 14 is inserted through the jacket insertion opening 17 to a predetermined position, the lid 15 of the spine 14 is fixedly held by the chucking device 27. be done. After this, when the jacket 11 is pulled out, the video disc 13 and the spine 1
4 is left inside the player body 16, and the empty jacket 11
is pulled out. At this time, the video disc 13 and the spine 14 are supported by the support body 22. Thereafter, when the playback button is operated, the slider 21 provided on the lower surface of the chassis 19 moves in the direction of arrow B as shown in FIG.

As a result, as shown in FIG. 4, the turntable 20
rises. As a result, the video disc 13 is placed on the turntable 20 and can be played back.

When the reproduction ends and the reset button is pressed, the slider 21 moves in the direction of arrow C as shown in FIG. As a result, the turntable 20 is lowered and the video disc 1
3 is placed on the support 22 again. Thereafter, when an empty jacket 11 is inserted through the insertion port 17 of the jacket 1, when the jacket 11 is inserted to a predetermined position, the fixed holding of the spine 14 by the chucking device 27 is released. Thereafter, when the jacket 11 is pulled out, the spine 14 and the video disc 13 are taken out of the player main body 16 while being housed in the jacket 1'1. As shown in FIG. 2, the jacket 11 is inserted into the player body 16 or taken out from the inside while being guided by the idle rails 25 and 26.

A detailed explanation of the structure and operation of the elevating means and shutter device 29 of the turntable 20 is provided in Japanese Patent Application No. 56-2 filed by the applicant on December 17, 1988.
No. 02426. Therefore, detailed explanation will be omitted here.

The recycled needle cleaner device 32, which is relevant to the description of the present invention, will now be described. In FIG. 2, 33 is a cleaner lever. The cleaner lever 33 is rotatably supported by a bin 34 in the inner part of the player main body 16. The cleaner lever 33 is always urged in the direction of the arrow C shown in the figure by the coil spring 35, and is stopped by hitting a stopper (not shown) at a predetermined position in the same direction. A cleaning cloth 36 is provided at one end of the cleaner lever 33. The other end is connected to the shutter 31 via a wire link 37.
It is connected to the.

38 is a cam. 39 is a lever driven by this cam 38. 40 is a position regulating member driven by this lever 39. FIG. 5 is an enlarged perspective view showing the cam 38, lever 39, position regulating member 40, and the like. The cam 38 is rotatably supported by a pin 41, for example, at a substantially central portion in the longitudinal direction of the sub-chassis 23. Further, it is always urged in the direction of the arrow E shown in the figure by the spring 42, and is set so that the slope 381 is approximately at the same height as the groove of the guide rail 25. The lever 39 is arranged from the cam 38 toward the cleaner lever 33 side. Lever 3
Reference numeral 9 denotes a portion that is offset toward the cleaner lever 33 side from the central portion in the longitudinal direction, and is pivotally supported by the bin 43 so as to be freely rotatable. For this reason, the lever 39 is set so that the end 391 on the cam 38 side can rotate downward in the figure (in the direction of arrow G in the figure) due to its own weight. End 3 of lever 39 on cam 38 side
A forked portion 392 is formed in the portion 91 . A screw 44 is provided at the free end of the cam 38, and a washer 45 is provided at the lower end of this screw 44. The lever 39 screws the fork 392 onto the washer 45 with the screw 47! The cam 38 is connected to the cam 38 so as to fit into the cam 38. Position regulating member 40
is moved vertically in the figure (arrow 0-N direction) by the bin 46.
It is rotatably supported on the shaft. This position regulating member 40 is provided with a long hole 401. And this long hole 40
The position regulating member 40 is connected to the lever 39 in such a way that the connecting portion 393 of the lever 39 is inserted into the position regulating member 40 .

A protrusion 402 is formed at the free end of the position regulating member 40 for regulating the rotation of the cleaner lever 33 in the direction of arrow C in the figure.

The cam 38 is attached to the spine 14 when it is loaded into the player body 16 as shown in FIG.
E51 is set so that it does not touch 4. This is accomplished, for example, by forming the nom 38 thinly or by placing the cam 38 as close to the sub-chassis 23 as possible.

The operation in the above-mentioned development will be explained in 91. First, the operation of the cam 38 and the like will be explained without going into detail. When the video disc 13 is not loaded in the player body 16, the cleaner lever 33 rotates in the direction of the arrow C as shown by the powder in FIG. 7, and comes into contact with the sleeve 47 and stops. . Jacket 1 containing video disc 13 and spine 14
When the lever 1 is inserted, the cleaner lever 33 is pushed by the jacket 11 and rotates in the direction of the arrow shown in the figure, and enters the resting state as shown by the broken line in FIG. This state is maintained even if the jitocket 11 is pulled out. In other words, even if the jacket 11 is pulled out, the spine 14 is retained by the chucking device 27, and the cleaner lever 33 is pushed by the spine 14.

When playback is completed and an empty jacket 11 is inserted, the spine 14 is released from being held by the chucking device 27, and the video disc 13 and spine 14 are housed inside the jacket 11. Thereafter, when the jacket 11 is pulled out, the video disc 13 and the spine 14 are taken out of the player body 16 while being housed in the jacket 11.

Accordingly, the cleaner lever 33 also rotates in the direction of the arrow 1 shown in the figure, resulting in a state as shown by the solid line.

The movement of the cleaner lever 33 described above is carried out by the wire link 37.
is transmitted to the shutter 31 via.

Figure 8 shows the shutter 31 in the direction of arrow 1 (see Figure 2 @
). When the cleaner lever 33 is rotating in the direction of arrow C in the figure, the wire link 37 is moving in the direction of arrow J in the figure. At this time, the shutter 31 is rotating in the direction indicated by the arrow in the figure due to its own weight. In this state, the shutter 31 does not prevent the jacket 11 from being inserted into the player body 16. When the cleaner lever 33 rotates in the direction indicated by the arrow, the wine link 37 moves in the direction indicated by the arrow. As a result, Syrezter 31
is pushed by a spring 48 and rotates in the direction of arrow M in the figure.
The state is shown by the broken line. This state is maintained while the spine 14 is held in the chucking device, in other words, while the video disc 13 is hidden in the player body 16. In this state, shutter 3
1 allows insertion of an empty jacket 11 and prevents insertion of jackets containing other video discs. This also prevents double loading of video discs. A detailed explanation of such a shutter device @29 is described in Japanese Patent Application No. 56-202426, and is not directly related to the present invention, so a detailed explanation thereof will be omitted here.

Next, the operation of the cam 38 and the like will be explained.

First, when the video disc 13 is not loaded into the player main body 16, the cam 3
The free end of 8 is biased by a spring 42, rotates in the direction of arrow E in the figure, and stops at a predetermined position. At this time, cam 3
The slope 381 of No. 8 corresponds to the groove of the guide rail 25. At this time, the lever 39 is lifted by the washer 45 in the direction of arrow H in the figure, and is, for example, in a substantially horizontal state. As a result, the position regulating member 40 is rotating in the direction of arrow O (see FIG. 5). In this case, the protrusion 402 of the position regulating member 40 is located below the cleaner lever 33, as shown by the broken line in FIG. In this state, when the jacket 11 containing the video disc 13 and the spine 14 is inserted, the cam 38 is pushed by the lower surface of the jacket 11 as shown in the arrow F as shown in FIG. 9(b). Rotate in the direction. As a result, the cam 3 of the lever 39
The rotation restriction of the end portion 391 on the 8 side by the washer 45 is released. However, the protrusion 402 of the position regulating member 40
comes into contact with the lower surface of the cleaner lever 33, so the lever 3
9 is almost unable to rotate in the direction of arrow G in the figure. This state does not change even if the jacket 11 is further inserted and the cleaner lever 33 is in the state shown by the broken line in FIG. That is, in this state, the protrusion 402 comes into contact with the lower surface of the jacket 11, and the lever 39
cannot rotate in the direction of arrow G shown in the figure. When the jacket 11 starts to be pulled out from this state, the position regulating member 40 rotates slightly in the direction of arrow N (see FIG. 5), but immediately stops when it comes into contact with the lower surface of the spine 14. As a result, the lever 39 also rotates slightly in the direction of arrow G in the figure, but immediately stops. Jacket 11 is cam 38
When passing through, the cam 38 rotates #J in the direction of the arrow E shown in the figure.

As a result, the lever 39 also rotates in the direction of the arrow in the figure, resulting in the same state as shown in FIG. 9(a).

When the empty jacket 11 is inserted after the playback is finished, the process is as follows. First, after the jacket 11 passes the cam 38 until it passes the protrusion 402 of the position regulating member 40, the cam 38 and the lever 39 are in the state approximately shown in FIG. 9(b). That is, the cam 38 is rotated by the jacket 11 in the direction of arrow F in the figure, and the lever 39 is rotated until the protrusion 402 contacts the lower surface of the spine 14.

When the jacket 11 passes through the protrusion 402 of the position regulating member 40, the position regulating member 40 rotates slightly in the direction of the arrow O in the figure, and the lever 39 also rotates slightly in the direction of the arrow O.
The state shown in Figure (b) is reached.

After this, when the video disc 13 and the spine 14 are completely housed in the jacket 11, the jacket 11 begins to be pulled out, but in that case, the following J: is performed. first,
When the jacket 11 begins to be pulled out, the cleaner lever 33 also rotates in the direction of arrow C in the figure. When the jacket 11 passes through the protrusion 402 of the position regulating member 40, there is nothing to restrict the rotation of the first position regulating member 40. This results in
The lever 39 rotates in the direction of arrow G in the figure due to its own weight, and the position regulating member 40 rotates in the direction of arrow N in the figure. Figure 9 (C
) indicates this state. When the jacket 11 passes through the protrusion 402, the protrusion 402 rotates in the direction of the arrow N in the figure, so that the cleaner lever 33 comes into contact with the protrusion 402 and can no longer rotate in the direction of the arrow C in the figure. Furthermore, when the jacket 11 is pulled out and the jacket 11 passes the cam 38, the cam 38 moves to the arrow E shown in the figure.
rotate in the direction. This causes the lever 39 to move to the washer 4.
5 and rotates in the direction of the arrow shown in the figure. As a result, the position regulating member 40 rotates in the direction of the arrow O shown in the figure. This causes the cleaner lever 39 to move to the stopper 4.
It rotates in the direction of arrow C in the figure until it comes into contact with point 7.

The cleaner lever 33 is released from the position restriction by the position restriction member 40 and rotates in the direction of arrow C in the figure, and the stopper 47
The regenerated needle is cleaned with a cleaning cloth 36 until it hits and stops. That is, when the video disc 13 is taken out from the player body 16 after playback is finished, the pickup arm 28 is moved to the back of the player body 16.
In other words, it is located on the cleaner 1 collar 33 side. When the pickup arm 28 is positioned in this way, the regeneration needle mounted on the pickup arm 28 is positioned in the cleaner lever 3.
This is because the cleaning cloth 36 is located on the rotational trajectory of the cleaning cloth 36 from when the position restriction by the position restriction member 40 is released until the cleaning cloth 36 hits the stopper 47 and stops.

[Problems of the background art] However, in the case of the above configuration, there are the following problems.

Even excluding the cleaner lever 33, the rotatably supported parts are the cam 38, the lever 39, and the position regulating member 4.
There are 3 points, 0. Therefore, if there are variations in the manufacturing accuracy, the accuracy of the mounting position, the accuracy of the pivot point, etc., there is a risk that the leaning operation will not be performed smoothly.

Further, the cam 38 and the lever 39 are connected as follows. A fork 392 is formed at the end 391 of the lever 39 and is fitted into a screw 44 provided on the cam 38. A washer 45 is provided at the lower end of the screw 44, and the washer 45 drives the lever 39, and when the lever 39 rotates in the direction of arrow G in the figure, the forked portion 39
2 is prevented from coming off from the screw 44. In such a configuration, the manufacturing precision and mounting of the cam 38, lever 39, etc. may vary due to variations in positional precision, etc.
There is a risk that the connection state with the device may become unstable. If the device is assembled in such a state, the cam 38 and lever 39 may become disconnected when external force such as vibration is applied.

Additionally, the lever 39 is relatively long. Therefore, lever 3
If the accuracy of the pivot point 9 is poor, the lever 39 will swing left and right,
Smooth movement will not be possible.

In addition, the cam 38 is connected to the spine 1 as explained in FIG.
In order to prevent the spine 14 from coming into contact with the spine 14 when the player 4 is loaded into the player body 16, the spine 14 is made thin or placed as close to the sub-chassis 23 as possible. Therefore, as shown in FIG. 10, it is likely that the jacket 11 will slip past the cam 38 and the cleaner device 32 will not operate.

[Object of the Invention] The present invention has been made to address the above-mentioned circumstances, and is capable of performing cleaning operations reliably and smoothly without being affected by variations in manufacturing accuracy of parts, external vibrations, etc., and is easy to assemble. The object of the present invention is to provide an easy-to-use pick-up element free combination device.

[Summary of the Invention] According to the present invention, when a jacket or a disc is loaded in a predetermined position in the player body, a cleaning operation is set, and when the jacket or disc is removed from the predetermined position after playback, the cleaning roller is activated. The cleaner lever is configured so that it rotates into contact with the regeneration needle to perform the cleaning operation, and the cleaner lever, which has a rotating roller with a cleaning cloth attached to its tip, is rotatably mounted on the chassis. In addition to rotating the jacket by inserting and removing the jacket, a cleaning roller is rotated using a sub-lever mechanism that operates in conjunction with the rotation of a cleaner lever, and this roller is rotated in a predetermined direction only during cleaning by a rotation direction regulating means. It is intended to make it possible.

[Embodiments of the invention] Hereinafter, the present invention will be described in detail based on the drawings.

Ru.

FIG. 11 is an exploded perspective view showing essential parts of the pickup element cleaning device according to the present invention, and FIG. 12 is a perspective view showing the device assembled on the chassis.

In these figures, 51 is the cleaner 1 collar.

The cleaner lever 51 has a substantially U-shaped configuration with arm portions 511 and 512 at both ends, and a leaf spring attachment portion 513 for attaching a leaf spring 52 protrudes laterally from the lower part of the arm portion 511. It is formed into a shape, and a hole 514 for attaching the rotating bottle 53 is bored in the bent portion. On the other hand, a hole 5'15 for attaching the tension spring 54 is provided at the lower end of the arm portion 512, and a protrusion 516 is provided above the hole 5'15, and a rotating pin 55 is provided at the center of the protrusion.
A hole 517 for attaching is formed.

The cleaner lever 51 configured in this manner has a hole 514.
After inserting the rotating bottle 53 through the
is inserted into the hole 571 of the sub-lever 57 with the washer 56 interposed, and then the clutch material 58 and roller 59 are inserted in this order, and the washer 60 and the locking member 61 are used to lock the tip of the bottle. As a result, the cleaner lever 51. Sub lever 57. Clutch material 58. The roller 59 is rotatably attached to the rotary pin 53. After the rotating pin 55 is inserted into the hole 517, it is inserted into the fixed piece 62 of the chassis 19. One end of the tension spring 54 is hung in the hole 515 at the end of the arm part 512, and the other end is hung on the spring hook part of the chassis 19. Therefore, the cleaner lever 51 is rotatably attached to a fixed piece 62 provided on one chassis. A toothed portion 591 is formed at one end of the roller 59, and this toothed portion 591 is fixed to the mounting portion 513 of the cleaner lever 51 and is connected to the leaf spring 52.
It is configured to match with @. Note that the leaf spring 52 is fixed to the mounting portion 513 using screws 63. A cleaning cloth 64 is attached to the rotating surface 592 of the 0-ra 59 excluding the toothed portion 591. A bottle 572 is fixed to the end of the sub-lever 57 opposite to the hole 571.

This pin 572 engages with a groove 672 of a sub-lever guide 67 fixed to the sillage 19 with screws 65 and 66. This groove portion 672 is provided on the side surface of the protrusion portion 671 that protrudes above the sub-lever guide 67.
By engaging the bin 572 with the sub-lever 5
7 is configured to be able to move guided by a potential 672.

A clutch material 5B is placed between the roller 59 and the sub-lever 57.
, so that the roller 59 and the sub-lever 57 are simultaneously rotated in the same direction.

Further, a function lever 68 is provided so as to rotate the cleaner lever 51 by applying force from above. The function lever 68 is formed into a rectangular shape,
One end thereof is provided with two legs 681 and 682, and the other end thereof is provided with an arm 683 projecting laterally. Bin portions 684 and 685 are completely formed on the tip sides of the leg portions 681 and 682. -Fixing piece 69 provided on the seat 19
．． 70 so as to be rotatable. The distal end side of the leg portion 683 is provided with a downwardly inclined inclined portion 686,
When the jacket 11 is inserted in the direction of arrow P shown in FIG. 12, it is configured to hit the inclined portion 686 and rotate the function lever 68, thereby rotating the cleaner lever 51 downward. Further, a lateral guide 71 for regulating the upward position of the function lever 68 is fixed to one chassis using a screw 72. The lateral guide 71 includes a canopy-like protrusion 711 at the top,
A through hole 712 with an internal thread is formed in this protrusion 711, and an adjustment screw 73 is screwed into this through hole 712. A portion of the rotation end (for example, point Q in the figure) of the function lever 68 is placed below the protrusion 711, so that the height position of the function lever 68 can be adjusted by the adjustment screw 73. Further, when the jacket 11 is inserted into the player body 16, the side surface of the lateral guide 71 is provided with a side surface of the jacket 11.
Position regulating guides 713 and 714 are arranged in parallel to regulate the loading position of the spine and video disc in the jacket. The fixing pieces 62, 69, and 70 are formed by cutting and raising the chassis 19, and a rectangular hole 74 is bored in the lower chassis surface where the roller 59 is located.

Next, the operation of the cleaning device described above will be explained with reference to FIGS. 13 to 15. 113 is a plan view showing the turning device, FIG. 14 is a rear view of FIG. 13 seen from the rear of the player body, and FIG. 15 is a side view seen from the left side of FIG. 13. 'As shown in FIGS. 13 and 15, when the spine 111 and the jacket 11 containing the video disc are inserted into the player body 16 and come to the position indicated by the symbol R, the front end of the spine 14 at the tip of the jacket 11 Inclined portion 68 of function lever 68
6 and pivots about the bottle portion 684 in the opposite direction shown in FIG. 15 to push down the function lever 68. Then, the cleaner lever 51, which is disposed in contact with the lower side of the function lever 68, also rotates clockwise in the drawing about the rotation bin 55 as a support shaft and is pushed downward. At this time, the sub-lever 57 rotates about the rotation bin 55 as a fulcrum. Therefore, the other end of the sub-lever 57 in which the bin 572 is disposed is connected to the groove 677 of the sub-lever guide 67.
14 to the left as shown in FIG. As a result, the sub-lever 57 rotates clockwise and the roller 59 also attempts to rotate clockwise due to the friction of the clutch material 58, but the plate spring 52 disposed on the right side
91 to stop the rotation of the roller, and in this state of stopped rotation, the cleaner lever 51 is pushed downward.

Then, as shown in FIG. 15, after the spine 14 inside the jacket 11 is caught by a chucking device (not shown) and inserted into the position regulating guides 713 and 714, the jacket 11
When the player body 16 is pulled out, the spine 14 and the video disc are placed inside the player body 16. In this state,
The function lever 68 remains pushed down below the spine 14, and the cleaner lever 51 is also set in a pushed down state below the spine 14. Therefore, even if the playback switch is pressed, the turntable rises, the video disc rotates, and the arm 28 starts moving downward as shown in FIG.
remains pressed down below the spine 14. It should be noted that while the video disc is being played back, the arm 28 is at the position shown, for example, by a chain line. When the regeneration is completed and the arm 28 returns to the reset position, the arm 28 is in the position shown by the solid line in FIG. 13. At this time, the regenerated needle in the arm 75 (
The stylus 75 is positioned directly above the roller 59. In this state, the turntable is lowered and the video disc is aligned on the same level as the spine 14, ready to be removed by inserting an empty jacket. Next, when an empty jacket is inserted and the video disc and spine 14 are stored, the jacking device is released and the jacket 11
can be pulled out from inside the player body 16, and while the jacket 11 moves from the position not shown by the symbol S to the position shown by the symbol R, the pressed down state of the function lever 68 is gradually released and the cleaner lever 51 is released from the tension spring. It is pushed up by the rotational force in the counterclockwise direction by 54. In this case, the sub-lever 57 and roller 59 also move up while rotating counterclockwise, and as shown in FIG.
The nail portion is removed by contacting the regenerating needle 75 in the nail 8 in a rotating state. In this case, the rotating direction of the needle tip of the roller 59 is the same as the rotating direction of the video disc, so there is no risk of the playback needle 76 being damaged during the cleaning operation. Further, the raised positions of the sub-lever 57 and the roller 59 are regulated by the adjusting screw 73 of the lateral guide 71,
9, that is, the cleaning cloth 64 and the regenerated needle 75 in the arm 28
The height is adjusted by adjusting the height of the function lever 68 using the adjustment screw 73.

In this way, the cleaning device is set by inserting the spine 14 and the jacket 11 containing the video disc into the player body 16, and the play needle 75 is cleaned when the jacket 11 is removed when collecting the video disc. I will do it. This operation is instantaneously performed by inserting and removing the jacket 11 when collecting the video disc.

Although the above embodiment describes a device that has a regeneration needle in the arm and detects a signal, the present invention is not limited to this, and can also be applied to a device that uses an optical pickup element as a signal detection element. It is also possible to apply this method to

[Effects of the Invention] As described above, according to the present invention, when a disk is recovered, the cleaner lever instantly rises and cleans the recycle needle by inserting and removing the jacket. There is no particular need for a switch means, so there is no need to worry about timing of cleaning, and there is no risk of damaging components such as a cantilever connected to the regenerating needle. Furthermore, since the roller to which the cleaning cloth is attached performs the cleaning operation by rotating in a direction that matches the rotational direction of the disk, there is no risk of damaging the tip of the regenerating needle by stroking it backwards. Further, since the cleaning device is arranged at the rear of the player main body, the operation can be performed reliably, and the height of the cleaning cloth surface can be easily adjusted during cleaning. Therefore, compared to a conventional cleaning device that operates by combining a cam mechanism and an opening mechanism, the configuration is significantly simpler, and only one part can be used.
The cleaning operation can be performed reliably and smoothly without being affected by variations in manufacturing accuracy, external vibrations, etc., and the cleaning device can be easily assembled.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing the external appearance of an example of a video disc player, FIG. 2 is a perspective view schematically showing the overall internal structure of the player main body shown in FIG. 1, and FIGS. 2
In the apparatus shown in the figure, a side view for explaining the operation of placing the video disc on the turntable and the operation of separating it from the turntable. FIG. 6 is an enlarged perspective view, and FIG. 6 is a schematic plan view for explaining the operation of the device shown in FIG.
FIG. 7 is a schematic plan view illustrating the operation of the cleaner lever;
FIG. 8 is a schematic side view for explaining the operation of the shutter in conjunction with the cleaner lever shown in FIG. 7; FIG. 9(a);
(b) and (c) are schematic side views for explaining the operations of the cam, lever, etc. shown in FIG. 5; FIG. 10 is a schematic plan view for explaining the drawbacks of the conventional regenerating needle cleaning device; 1st
1 is an exploded perspective view showing an embodiment of a pickup element cleaning device according to the present invention, FIG. 12 is a perspective view showing the device shown in FIG. 11 assembled on a chassis,
Figure 13 is a plan view of the cleaning device that explains the operation of the cleaning device, Figure 14 is a rear view of Figure 13, and Figure 15 is the
FIG. 11... Jacket 13... Video disc 1
4... Spine 16... Player body 19...
- Chassis 28... Pickup arm 51... Cleaner lever 52... Leaf spring 53.
55...Rotating bottle 54...Tension spring 57...
・Sub lever 58...Clutch material 59...Roller 591 Gear cutter 64...Cleaning cloth 67...Sub lever guide 672...Groove 68...Function lever 683...Arm 686 ... Inclined part 71 ... Lateral guide 711 ... Projection part 712 ... Through hole 713, 714 ... Position regulation guide 73 ... Adjustment screw 75 ... Recycled needle patent applicant.
...Tokyo Shibaura Electric Co., Ltd. 7th Ward 32 Figure 8 □J Figure 9 Figure 10

Claims (1)

[Claims] A spine is used to hold the recording disk;
7. By inserting the recording disc into the player body, the jacket can be loaded into the player body, and after playback is finished, the recording disc can be taken out from the player body while being held by the spine. , a pickup element for big amplifying a recording signal from the recording disk, and a GJ with one end rotatably installed inside the player main body,
When the jacket or recording disc is not loaded inside the player main body, it is positioned at the first height position by the height position adjusting means, and when the jacket or recording disc is loaded inside the player main body, this loading is performed. a function lever that is positioned at a second height position by the player; one end of the function lever is rotatably provided inside the player main body, and the function lever is configured to rotate according to the rotational position of the function lever; , and is always biased in one direction by an elastic member, and is regulated by the first height position of the function lever when the function lever descends from the first height position to the second height position. The fan cushion lever moves from the second height position to the first height position, and the fan cushion lever moves from the second height position to the first height position. a cleaner lever that rises from the fourth height position to the height position M3 by the biasing force of the elastic member when the cleaner lever rises to the height position M3; a roller that is attached and rotates in a predetermined direction to clean the pickup element when the cleaner lever rises from the fourth height position to the third height position; the roller and the cleaner lever; A guide bin, one end of which is rotatably mounted on the same axis as the rotation shaft with a latch material interposed therebetween, and the other end of which is mounted, rotates the roller when the guide bin moves in accordance with the vertical movement of the cleaner lever. a sub-lever for moving the cleaner lever from the third height position; Said fourth
rotational direction regulating means for inhibiting rotation of the roller when the roller has descended to a height position of , and rotating the roller in a predetermined direction when the roller has risen from the fourth height position to the third height position; A cleaning device for a pickup element.