JPS63282954A - Disk reproducing device - Google Patents

Abstract

PURPOSE:To improve the operability in loading a disk by regulating the rocking of a transfer body in the direction orthogonal with the moving direction at the time of moving the transfer body, and equipping a guide tool guiding the movement of the transfer body. CONSTITUTION:At the right and left sides of a loading chamber 6, the bar like guide rails 11, 12 provided in front and in rear directions respectively and the disk transfer body 13 provided by opposing disk holders 16, 17 and an upper face holding plate each other are provided freely slidable along to guide rails 11, 12. Guide pins 14, 15 downwards respectively are integrally fixed at both sides of the disk transfer body 13 rear part. The disk holders 16, 17 consisting of the about arc like disk holding arm located at the lower part of both side parts of the transfer body 13 and supported freely vertically movable on the guide pins 14, 15 respectively are provided, a compression spring 18 is interposed respectively between the lower end of both guide pins 14, 15 and both holding arms 16, 17 and energized upwards and the both sides arc like parts of the disk 2 inserted from an insertion hole 4 are held between the upper face holding plate of the transfer body 13 and both holding arms 16, 17.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a disc reproducing device that uses a light beam, a needle, etc. to reproduce information recorded on a video or audio disc, and that improves the operability of the disc device. Regarding.

In conventional disc playback devices, when loading a disc, the center hole of the disc is inserted into the rotating shaft at the center of the rotating disk provided in the main body of the device, and then the cap for holding the disc is attached with a screw, etc. This fixes the disk and allows it to rotate. Furthermore, when removing the disk, the disk is removed in the reverse manner as described above. Since this disc drive needs to be rotated at high speed, a means for securely fixing it to the rotating shaft is required as described above.

However, the conventional playback device has the drawback that the series of operations for loading and unloading the disc is complicated and the operability is poor.

This invention was made with the above points in mind,
Next, the present invention will be explained in detail with reference to drawings showing one embodiment thereof.

In the drawings, (1) is a box-shaped main body of a disc playback device, (2) is a video, audio, etc. disc, and a center hole (3) is formed in the center of the disc (2). (4) is an insertion hole for the disk (2) formed horizontally on the front side of the device body (1) by the mouthpiece (5);
The mounting chamber 2) and 6) communicate with the outside through the insertion hole (4). 7) is a reproducing motor for rotating the disc, which is located below the center of the mounting chamber (6) and whose shaft penetrates the lower wall of the mounting chamber (6) and is introduced into the mounting chamber (6). A rotating disc (turntable) (8) is attached to the shaft end of (7).
- A rotating shaft (9) provided in the body and into which the center hole (3) of the disk (2) is inserted into the center of the rotating disk (8).
is provided to protrude upward, and several magnet plates 10) are embedded in the upper surface of the outer peripheral portion of the rotating disk (8).

(11) and 12) are rod-shaped guide rails provided in the front and back direction on the left and right sides of the mounting chamber 6), respectively, and (13) are provided with a disk holding part and a soil surface holding plate, which will be described later, facing each other. It is a disc transport body with both guide rails (11)
, 12) and both guide rails (11).
, (12). Further, downward guide bins (14) and (15) are integrally fixed to both rear sides of the disk carrier (13), respectively. (16
) and (17) are disk holding parts that are located below both sides of the carrier (13) and are supported by guide bins (14) and (15) so as to be able to move up and down, respectively. Compression springs (18) are interposed between the lower ends of both guide pins (14) and (15) and both holding arms (16) and (17), respectively, and are biased upward, so that the carrier (
13) Both side arcuate portions of the disk (2) inserted through the insertion hole (4) are held between the upper surface holding plate and both holding arms <16017). (19) is a rack gear formed in the front-rear direction on the right side of the carrier (13), and 20) is disposed on the right side of the mounting chamber (6) and is connected to the rack gear (19) by a rotating shaft that protrudes upward. Pinion gear that meshes (21
) is a shaft-mounted drive motor, and the pinion gear (21) and rack gear (1) are driven by the motor (20>).
9), the carrier (13) moves back and forth. (22
) and (23) are a light emitting body such as an LED and a light receiving body such as a photodiode, which are mounted on the upper and lower inner surfaces of the mounting chamber (6) at the approximate center, and these constitute a transmission type optical switch, and the insertion hole (4) ) is detected, and the drive motor (20) is started to be driven. The drive motor (20), pinion gear (21), rank gear (19), etc. constitute a drive mechanism that moves the disc (2) to a predetermined performance position.

(24) is a pair of support pieces (2) on the rear upper wall of the mounting chamber (6).
5>(25> left and right rotation axis supported between (26
) is a fixed arm that is rotatably supported on a rotating shaft (24) and has a substantially L-shaped side view.The negative side of the fixed arm (26) protrudes very long forward, and
6) A tension spring (28) between the other side and the hook (27) at the bottom of the mounting chamber (6) biases the fixed arm (26) to rotate upward on its negative side. There is.

(29) is rotatably provided at the negative front end of the fixed arm (26), and has a recess (30) formed at the center of the lower end into which the rotating shaft (9) of the rotating disk (8) is inserted. This is a fixed camp for fixing the disc (2), and the camp (2) is
Several electromagnetic magnets 31) with variable polarity are embedded in the outer periphery of the lower surface of 9), and the magnets (31) are attracted or repelled by the magnet (10) of the rotating disk (8). (32) is an operating cavity formed on the other side of the fixed arm <26>, and is integrally provided with a left-right operating shaft (33). A disk clamping body is composed of the fixed arm (26) and the fixed cap (29). (34) is a plunge located at the center of the rearmost part of the mounting chamber (6), and its mouth (35) protrudes forward, and the tip of the rod (35) is connected to the hollow part. <
The rod (32) is connected to the operating shaft (33), and when the plunger (34) is energized, the rod (3
5) is sucked backwards, the other side of the fixed arm (26) is pulled rearward via the operating shaft (33), and the fixed ground (26) is pulled back against the bias of the tension spring (28>). As shown in Figure 6, the fixing cap (29) can be rotated in the downward direction of the arrow. Direction bins, (38) and 39) to plunge =
- (34), located on the left and right outer sides of the rotation axis (40), respectively.
) and (41), the sides of which are rotatably supported are L-shaped shift levers, and pressing portions (42) and (43) are formed at the front end of each of the − sides, and the conveyor (13) )
The holding arm 16 is in contact with the upper surface of the rear end of the disk holding arm (16) and the lever 17), which are the disk holding parts.
) and (17>) downward/\. Also, a long hole is formed at the lower end of the other side of each of the nft levers (38) and (39), and a pin (36) is inserted into the long hole.
, (37) are inserted respectively, and the fixed earth, (
26), both lever levers 38) and 39〉 can be rotated around rotation axes (40〉, (41)) respectively. (44) and (45) are located at the rear of the mounting chamber (6). The disc (2) is a light emitter and a light receptor mounted on the upper and lower inner surfaces of the disc (2) that has been moved to a predetermined performance position, that is, a detox disc (2) that has been moved to a position where it can be engaged with the rotating shaft (9).
) is constructed as a transmission type optical switch that detects the presence of A desk (2) with the light emitter (44) and the photoreceptor (45)
Upon detection of this, the plunger (34) is driven. (4
6) is a stopper of the fixed arm (26), and 47) is an ejection switch for removing the disk provided on the front of the main body (1) of the apparatus. Note that the fixed arm (26),
Fixed cap (29), magnetic cap 10), (31)
, plunge (34), etc., constitute a fixing mechanism for fixing the disk (2) to the rotating shaft (9).

Next, the operation of the above embodiment will be explained.

When using a disk device, when the disk (2) is inserted into the mounting position in the device main body (1) through the insertion hole (4), the peripheral edge of the disk (2) will open as shown in FIGS. 3 and 4. Upper surface holding plate and holding part (16) of disk transport body (13)
(17), thereby disc (2)
is held, and at the same time, the disk (2) reaches the disk mounting position of this carrier (13), so that
Light from the light emitting part (22) to the light receiving part <23) is blocked,
The presence of disk (2) is detected.

Upon detection of the disc 2), the drive motor 20) starts driving and drives the disc transport body (13) through the pinion gear (21) and rack gear (19).
The disk (2) is held on the disk holding portion of the disk and moves backward along both guide rails (11>, (12)).

Next, the movement of the carrier (13) progresses, and as shown in FIGS. 5 and 6, the disk (2) reaches a position where it can engage with the rotating shaft (9), that is, the center of the disk hole (3
) is located above the rotation axis (9), then the light emitter (
44) The light to the photoreceptor (45) is blocked by the disk (2), and the signal from this transmission type optical switch causes
The driving of the drive motor (20) is stopped and the transport body (13)
stops, and the disk (2) stops at a position where it can engage with the rotating shaft (9). At this time, both shift levers (38),
The pressing parts (42) and (43> of (39) are located on the upper surface of the rear end of the force holding arms (16) and (17), respectively, and wait for the rotation operation of the shift levers (38) and (39). On the other hand, while the carrier (13) is moving backward from the disk loading position, the fixing cap (29) located above is supported by the tip of the fixing arm (26). Moreover, since the fixed arm (26) is biased to rotate by the tension spring (28), the fixed cap (29) is lifted upward and placed in the holding section, and the fixed arm (26) and the fixed cap (29) is the carrier (13
) does not impede movement.

Further, as described above, the light emitter (44) and the photoreceptor (45)
) is detected by the transmission type optical switch, and when the dee 8=sufuku 2) stops at a position where it can engage with the rotating shaft (9>), at the same time, a signal from this transmission type optical switch causes the plunge ~-( 34) starts, and the rod (35) moves rearward due to its suction action, and the operating shaft (
33), the fixed arm (26) is rotated downward as shown by the arrow in FIG. As the fixed arm (26) rotates, the fixed gap (29) on the negative side thereof moves downward, and the fixed arm (26) moves downward, as shown in FIGS. 7 and 8.
Both bins (36) and (37) on the other side move rearward, and both shift levers (38) and (39) respectively move to the rotation axis (4).
0) and (41), and press the respective pressing parts (42).
), (43> force retention arms (16) (17)
) The disc holding part consists of both guide pins (14〉(1
5). As the fixed arm (26) rotates, the fixed cap (29) is attached to the disc (2).
The force retaining arm (16) (
17), the disk (2) moves downward, and the rotating shaft (9) of the rotating disk (8) is inserted into the center hole (3) of the disk (2). , the recess (30) of the fixed camp (29) fits into the rotating shaft (9), and the magnet (10) of the rotating disk (8) and the electromagnetic magnet (31) of the fixed cap (29) fit together. Due to mutual attraction, the disc (2) is clamped between the rotating disc (8) and the fixed cap (29), and the disc (2)
can be fixed to the rotating shaft (9). Now, both retaining arms (
16), (17) are both shift levers (38), (39)
The disk (2) is pushed down to a position where it does not interfere with its rotation, and the disk (2) can be rotated by the rotating shaft (9). Since the seventh bar (29) is rotatably supported by the fixed arm <26), it does not interfere with the rotation of the disk (2). Then, in this state, the reproduction (performance) of the disc (2) is started.

Next, remove the disk (2) after the playback is finished, etc.
When removing the eject switch on the front of the main unit (1),
47), the power to the plunger ~-(34>) is cut off and the suction of the rod (35) is stopped.If the polarity of the electromagnetic magnet (31) of the fixed cap (29) is reversely reversed, , Plunge ~ - (34) (7) Rod (35
) is ejected forward, and the fixed cap (26) rotates upward on its fixed cap side due to the bias of the tension spring (28) and hits the stock bag 46), and the fixed cap (26) 29) is moved upward by the rotation of the fixed arm (26), and both shift levers (38) and 39) are rotated in conjunction with the rotation of the fixed arm (26), so both holding arms 16) , (17) is removed, both holding arms (16) and (17) float up due to the compression spring (18), and the disk (2) is placed on the lower surface of the upper holding plate of the carrier (13>). reach the holding plate and both holding arms (16
) (17). Furthermore, after this, the drive motor (20) is driven and rotates in the opposite direction to that at the time of insertion, and the transport body (13) moves forward via the binion gear (21) and rack gear (19), and the transport body ( When the drive motor 20) reaches the position shown in FIGS. 3 and 4, the drive motor 20) stops and the transport body (13) Stop. From now on, insert the insertion hole (4)
The disk guided further forward is manually removed.

Therefore, according to the embodiment, when installing the disk (2), the disk (2) is inserted through the insertion hole (4) of the device body (1).
2), the disk (2) is held in the disk holding portion of the conveyor (13) at the disk mounting position, and the disk (2) is driven by the drive motor (20) to rotate the rotation shaft. (9) to a performance position where it can be engaged with the disc (9), and then attach the disc (2) to the rotating shaft (9) using a disc clamping body consisting of a fixed arm (26) and a fixed key V-touch 29). It can be fixed and rotated, and this series of operations can be
This can be automatically controlled by detecting the disc (2) using a double-transmission type optical switch, and the user has no control over the disc (2).
2) only needs to be inserted through the insertion hole (4), which provides extremely good operability and also ensures secure fixation of the disk (2) to the rotating shaft (9). Furthermore, when the disc (2) is ejected after playback is finished, etc., the reverse operation described above can be performed automatically by simply operating the eject switch (47), and the disc (2) can be removed manually. It is easy to extract and can be used with excellent usability and operability.

As described above, the disc playback device of the present invention includes a turntable for rotationally driving a disc, a disc holder for holding the disc, a disc mounting position for mounting the disc on the disc holder, and a disc mounting position for mounting the disc on the disc holder. a disc transport body supported movably between a performance position where the held disc is rotationally driven by the turntable; and a disc transport body supported movably between a performance position and a performance position where the disc held by the disc holding unit is rotated when the disc transport body is in the performance position. It consists of a clamping body that is clamped to the turntable, so when the disc is mounted on the disc carrier, the disc is moved to the disc playing position by the carrier and fixed to the rotation axis of the turntable. This makes it possible to improve the operability of mounting the disc, and also to securely fix the disc. As disc sizes become smaller in the future, the disc reproducing apparatus of the present invention will become more useful when combining with televisions, audio equipment, etc. is considered.

In addition, when the disk carrier is moved, it is equipped with a guide tool that restricts the swinging of the carrier in a direction perpendicular to the direction of movement and guides the movement of the carrier. It does not swing in a direction perpendicular to the direction of movement.

[Brief explanation of the drawing]

The drawings all show one embodiment of the disc playback device of the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is a partial front view, Fig. 3 is a plan view seen from the side, and Fig. 4. 5 to 8 show the operating state, FIGS. 5 and 7 are plan views seen from the side, and FIGS. 6 and 8 are cut side views. (1)...Device body, (2)...Disk, 4>
...insertion hole, (9) ...rotation shaft, (11) (12)
... Guide ° rail, (13) ... Disk transport body, (16) (17) ... Disk holding part, (19) ...
...Rack Kia, (20)...Drive motor, (21)
... Pinion kia, (22) (23) ... Detection means consisting of a light emitter and a photoreceptor, (26) (29) ... Disc clamping body consisting of a fixed arm and a fixed cap, (4
4) (45) ... light emitter and photoreceptor. taste! De's wife

Claims (1)

[Claims] (1) A turntable that rotationally drives a disk, a disk holding section that holds the disk, a disk mounting position where the disk is mounted on the disk holding section, and a disk held on the disk holding section that is moved by the turntable. a disc transport body supported so as to be movable between a rotationally driven performance position; and a clamping body for clamping the disc held by the disc holder to the turntable when the transport body is at the performance position. A disc playback device comprising: a guide tool for regulating the swinging of the conveying body in a direction perpendicular to the direction of movement of the conveying body during movement of the conveying body and for guiding the movement of the conveying body.