KR960014397B1 - Loading/unloading apparatus for multi-disk player - Google Patents

Abstract

A sliding member (18) slides in the transverse direction according to the eccentric rotation of a semicircular cam (17) and has a bent member (18b) of which the lower part is adapted to be inclined outwardly. When secondly feeding backward a disk (5) which has been fed backward first by the rotations of driver roller (24) and driven roller (26) in the unloading step, the sliding member (18) can rapidly get apart from the driver roller (24) and the driven roller (26).

Description

Multi disk player loading and unloading device

1 is a plan view showing a conventional loading and unloading device of a multi-disc player, a) is a state in which the disc is stored in the magazine, b) is a state in which the disc stored in the magazine when the loading is taken out and transported , c) is a state in which the disk is transported back to the magazine when unloading.

2 is a front view showing a loading and unloading apparatus of a conventional multi-disc player.

FIG. 3 is an enlarged view of a main part showing a state in which a driving roller and a driven roller are moved so that a disk selected in the conventional apparatus can be moved, and a) is used to transfer a disk in which a driving roller and a driven roller are accommodated in a center tray. B) is a state in which the driving roller and the driven roller are moved in position to convey the discs stored in the upper and lower trays.

Figure 4 is a front view showing the operating state of the sliding member and the cam constituting the loading and unloading device of the conventional multi-disc player, a) is a state in which the cam is waiting to move the sliding member before loading and unloading selection Figure 2, b) is a state in which the cam completely moves the sliding member to the right side when the loading and unloading selection, c) is the cam releases the moving force of the sliding member when the unloading selection, the sliding member is returned to its original state State diagram.

Figure 5 is a front view showing the operating state of the sliding member and the cam constituting the loading and unloading apparatus of the present invention a multi-disc player in one embodiment, a) the cam moves the sliding member before loading and unloading selection B) is a state in which the cam completely moves the sliding member to the right when loading and unloading is selected, and c) is a state in which the cam releases the sliding force of the sliding member when the unloading is selected. Also returns to its original state.

Figure 6 is a front view showing the operating state of the sliding member and the cam constituting the loading and unloading apparatus of the present invention a multi-disc player in another embodiment, a) to move the sliding member before the cam loading and unloading selection B) is a state in which the cam completely moves the sliding member to the right when loading and unloading is selected, and c) is a state in which the cam releases the sliding force of the sliding member when the unloading is selected. Also returns to its original state.

Figure 7 is a plan view showing the operating state of the sliding member and the cam constituting the loading and unloading apparatus of the present invention a multi-disc player in another embodiment.

* Explanation of symbols for main parts of the drawings

5: disc 17: cam

18: sliding member 24: driving roller

26: driven roller 32: protruding pin

The present invention relates to an apparatus for loading and unloading a multi-disc player. More particularly, the disk taken out of the magazine when the unloading is selected is smoothly reversed to be stably stored in the magazine. In general, a multi-disc player is a device capable of selectively playing each disc in a state in which several discs are stored in a single magazine, and the multi-disc player takes out a disc stored in a magazine during playback to a turntable. It has a loading and unloading device to transfer the disk, which has been transferred to the turntable at the end of the transfer or reproduction, to be stored back into the magazine.

Conventionally, the loading and unloading apparatus is provided with a case 2 constituting a magazine inside the main body 1 as shown in FIGS. A plurality of trays (3a) formed are elastically installed with the first coil spring (4) so as to be slidable, respectively, and one side of the case (2) has a disk (5) housed in each tray (3) A leaf spring 6 is attached to hold it, and a plurality of rotation levers 7 having a long hole 7a are formed in the case 2, and each tray 3 has each rotation lever 7 attached thereto. The boss 8 is formed so as to be fitted into the long hole 7a formed in the shaft, and the pivoting lever 7 is rotated in accordance with the sliding movement of the tray 3.

In addition, the guide rod 9 is fixed to the rear side of the main body 1 and the driven gear 13 receives the driving force of the motor 10 through the worm 11 and the worm gear 12 so as to be able to rotate forward and reverse. A fixed lead screw 14 is installed, and the lead screw has a long movable plate having a long groove 15a so that the lead screw 14 is vertically moved up and down while being guided to the guide rod 9 during forward and reverse rotation of the lead screw 14. 15 is installed, and a half moon type cam 17 is installed on the rear surface of the main body 1 so that the driving force of the main motor 16 is transmitted through the power transmission means and the eccentric rotation of the cam is performed. The sliding member 18 having the guide hole 18a and the bending piece 18b is elastically installed with the second coil spring 19 so as to be slid left and right at the time, and is perpendicular to the upper portion of the vertical moving plate 15. When the moving plate moves up and down, it moves up and down together to select one tray 3 When moving or sliding the sliding member 18 to move left and right, the locking projection 20a and the guide hole 20b to move to the left and right together to move the selected tray 3 to the inside and outside of the case (2) Is provided with a horizontal moving lever (20).

The power transmission means is axially coupled to the main motor 16 to receive the driving force of the main motor, and the main worm 21 is rotated forward and reverse, and hinged to the main body 1 to the rotational force of the main worm 21 It is composed of a plurality of intermediate gear 22 to receive and transfer, and a cam gear 23 integrated with the half moon type cam 17 to receive the rotational force of the intermediate gear 22 to rotate the cam 17.

In addition, the lower plate 25 in which the driving roller 24 is installed at the end in the main body 1 is hinged to be rotatable, and the upper plate 27 in which the driven roller 26 is installed is used to reinforce the elasticity of the torsion spring 28. Receiving and hinged rotatably, one side of the hinge shaft of the drive roller 24 is inserted into the long groove (15a) formed in the vertical movable plate 15, the drive roller 24 when the vertical movable plate 15 moves up and down Also, the lower plate 25 is provided with a drive gear 29 to be rotatable under the rotational force of the cam gear 23, and the lower plate 25 is provided with a drive gear ( A plurality of intermediate gears 30 are installed to receive and transmit the rotational force of 29. One side hinge shaft of the driving roller 24 receives rotational force of the intermediate gear 30 to impart rotational force to the driving roller 24. The driven gear 31 is fixed so as to give it.

Accordingly, when one disk to be played is selected in a state in which the disk 5 is stored in each tray 3 in the case 2 constituting the magazine, and the loading button of the selected disk is pressed, the motor in the main body 1 is first pressed. (10) is driven and the driving force is transmitted to the driven gear (13) fixed to the lead screw (14) through the worm (11) and the worm gear (12), so that the lead screw (14) picks up any disc (5). According to the selection, it is rotated forward or reverse and accordingly, the vertical movable plate 15 installed on the lead screw 14 and the horizontal movable lever 20 installed on the upper portion of the vertical movable plate move upward or downward. Since one side hinge shaft of the driving roller 24 installed at the end of the lower plate 25 is inserted into the long groove 15a formed in the vertical moving plate 15, the upper and lower moving force of the vertical moving plate 15 is driven by the driving roller ( 24) to the lower plate 25 Accordingly, since the lower plate rotates clockwise or counterclockwise around the hinge axis, the driving roller 24 is moved and the driven roller 26 installed on the upper plate 27 is in contact with the driving roller. Position is moved.

That is, in FIG. 3A, the driving roller 24 and the driven roller 26 are provided so that the discs stored in the trays in the center (number 2) of the three trays 3 constituting the magazine can be transferred. In this state, in order to play the disc accommodated in the upper tray (1) by the driving roller 24 and the driven roller 15, the play button of the disc 1 may be selected and the bottom ( In order to play the disc stored in the tray No. 3, the play button of the disc No. 3 is selected.

Then, the process of moving the drive roller 24 and the driven roller 26 in accordance with the selection of the disc play button is as follows.

When the play button of the first disc is selected to play the disc stored in the upper tray, the lead screw 14 installed in the main body 1 rotates in the forward direction (clockwise), so that the vertical movable plate 15 installed in the lead screw is mounted. ) And the horizontal moving lever 20 installed on the upper part of the vertical moving plate moves upward, and the lower plate 25 hinged in the main body 1 drives the upper moving force of the vertical moving plate 15 to the driving roller. Received through 24) rotates in the clockwise direction in the drawing so that the drive roller is moved to the top and at the same time the upper plate 27, which is controlled by the lower plate 25, the elasticity of the torsion spring 28 Since it rotates in the same direction as the rotational direction of the lower plate 25, the driven roller 26 installed on the lower plate also moves to the upper position, and thus the driving roller as shown in the solid line of FIG. 24 and the driven roller 26 can convey the disc accommodated in the upper tray of the plurality of trays (3).

In addition, in the state shown in FIG. 3 a), when the play button of disc 3 is selected to play the disc stored in the lower tray, the drive roller 24 and the upper plate 27 installed on the lower plate 25 are selected. The driven roller 26 is moved so as to transfer the disc 3 as shown by the dashed-dotted line in FIG. 3 b. The description of the operation thereof will be omitted because it is not understood.

In this way, when the driving roller 24 and the driven roller 26 are moved to move the selected disk 5, the main motor 16 is driven clockwise in the drawing and the driving force is axially coupled to the main motor. The cam 17 is transmitted to the cam gear 23 integrated with the half moon type cam 17 through a plurality of intermediate gears 22 rotatably hinged to the main worm 21 and the main body 1. The counterclockwise rotation and the rotational force of the cam gear 23 is hinged rotatably to the drive gear 29 and the lower plate 25, which is rotatably installed on the hinge shaft of the lower plate 25. The driving roller 24 is rotated because it is transmitted to the driven gear 31 fixed to one side hinge shaft of the driving roller 24 through the plurality of intermediate gears 30, wherein the selected disk is loaded by the following operation. (3) the drive roller 24 to be taken out and rotated; While receiving a rotating force of the driven roller 26 which is rotated by contact with the drive roller is transferred to the group tenteyibeul (also not shown).

In the above operation, a process of taking out and transporting the disk housed in the center tray among the disks 5 housed in the plurality of trays 3 will be described below.

In FIG. 2, the driving roller 24 and the driven roller 26 are moved in position to transfer the discs stored in the center tray, and in this state, hinge coupling is possible for eccentric rotation to the rear of the main body 1. The straight surface of the cam 17 is in contact with the bent piece 18b formed on one side of the sliding member 18. At this time, the cam 17 rotates eccentrically in the clockwise direction as the cam gear 23 rotates. When the curved surface of the cam comes into contact with one side of the sliding member 18 at some point, the sliding member is guided to the hinge axis of the cam 17 and in the same state as b) in the state shown in FIG. Sliding movement and thus the horizontal moving lever 20 installed on the upper surface of the vertical movable plate 15 is guided to the guide rod (9) to move horizontally.

When the sliding member 18 is slid, the guide shaft 18 is guided to the hinge shaft of the cam 17 because the guide hole 18a is formed in the sliding member 18 so that the guide hole is fitted to the hinge shaft of the cam 17. It is possible to be guided to the guide rod 9 when the horizontal moving lever 20 is horizontally moved because the guide hole (20b) is formed in the horizontal moving lever 20 is inserted into the guide rod (9) It is possible.

On the other hand, when the horizontal moving lever 20 moves to the right in the drawing as shown in FIG. 1A of the accompanying drawings, the locking projection 20a formed on the horizontal moving lever pulls the locking step 3a formed on the tray 3. As the tray is pulled, the tray in which the disk 5 is stored is moved outwardly while receiving the elasticity of the first coil spring 4 through the opening of the case 2 constituting the magazine, thereby engaging the hinge in the case 2. The rotating lever 7 receives the external movement force of the tray 3 and rotates it counterclockwise in the drawing to push the disk 5 stored in the tray 3, where the disk is attached to the case 2. Part of the tip of the first conveyed disk 5 as it is first conveyed by a predetermined distance (distance proportional to the rotation angle of the lever) to the outside of the tray 3 while pushing the leaf spring 6 holding the disk. Drive roller 24 is rotated as shown in FIG. Sandwiched between the driven roller 26 is sate.

The rotation lever 7 is rotated in response to the output of the tray 3, the boss (8) is formed on the tray 3 and the long lever (7a) is fitted to the boss on the rotation lever (7) It is possible because it is formed.

When a part of the tip of the first conveyed disk 5 is sandwiched between the driving roller 24 and the driven roller 26, the disk 5 is rotated by the driving roller 24 and the driven roller 26. Subsequent to the second transfer, the loading is completed as it is completely taken out of the tray 3 and reaches the turntable.

In the above operation description, since the cam 17 is returned as shown in FIG. 5A in the state where the loading of the disk is completed, the sliding member 18 that is slid to the right in the drawing is also slid to the left again accordingly. The tray 3, which has been moved to the outside of the case 2, is also moved back into the case, which is possible because the main motor 16 is driven only until completion of one rotation of the cam gear 23 at the time of loading.

In addition, when the loaded disc 5 taken out from the tray 3 is played back or the playback is stopped as necessary, the disc must be unloaded and stored in the tray 30 again. In this case, the main body 1 is eccentric. A half moon type cam 17 rotatably mounted and a drive roller 24 mounted on the lower plate 25 receive a counterclockwise driving force of the main motor 16 to rotate in the opposite direction as when the disc 5 is loaded. You can transfer it.

That is, when the main motor 16 is driven in the counterclockwise direction in the drawing, the cam 17 receives the driving force of the main motor in the same direction as when it is loaded and rotates eccentrically in the clockwise direction, while the drive roller 24 receives the counterclockwise. Direction, wherein the disc 5 is rotated by the counterclockwise rotational force of the drive roller 24 and the clockwise rotational force of the driven roller 26 rotated by the contact of the drive roller, as shown in c) of FIG. The reverse transfer is carried out and the tray 3 in the case 2 is pulled out again while receiving the elasticity of the first coil spring 4 to mount the first reverse transfer disk 5.

Meanwhile, even when the driving roller 24 and the driven roller 26 are rotated by the counterclockwise driving force of the main motor 16 continued in the state shown in FIG. By the rotational force of the 24 and the driven roller 26 it can no longer be transported, wherein the straight surface of the half-moon-shaped cam 17 rotated in the clockwise direction is in contact with the bending piece 18b formed on the sliding member 18 From the moment, the sliding member 18 is slid to the left side in the drawing by receiving the restoring force of the second coil spring 19, so that the outer movement force of the tray 3 by the horizontal lever 20 is released and thus the tray is first Receiving the restoring force of the coil spring (4) is moved to the inside of the case (2) and the disk (5) while receiving the restoring force of the leaf spring (6) attached to the inside of the case (2) is transferred back to the tray (3) It is stored in, so the unloading is completed.

However, in the conventional device as described above, when the unloading vandal cam is slid, the sliding member slides to the right and then slides back to the left while the disk is mounted in the reverse direction. Since the cam is regulated, the disc loaded on the tray cannot slide to the left quickly when the disc is firstly reversed by the rotational force of the driving roller and the driven roller and then continuously reversed by the restoring force of the leaf spring. There was a problem that the disc does not fall quickly from the driving roller and the driven roller, and thus the disc being conveyed back often rides over the rotating driven roller so that it cannot be stably stored in the magazine.

The present invention has been made in order to solve the above problems, when the unloading of the disc when the primary back-fed disc by the rotational force of the drive roller and the driven roller is the second back-fed tray mounted case The purpose is to allow the disc to move quickly into the disc and stably receive it in the magazine without riding over the driven roller.

According to the present invention for achieving the above object by inclining the lower portion of the bending piece of the sliding member sliding left and right in accordance with the eccentric rotation of the half-moon cam outwards by the rotation of the driving roller and the driven roller during unloading There is provided a loading and unloading apparatus of the multi-disc player of the present invention, which allows the disc to be quickly separated from the rotating drive roller and the driven roller when the conveyed disc is secondaryly reversed.

Hereinafter, the present invention will be described in more detail with reference to FIG. 5 of the accompanying drawings.

Figure 5 is a front view showing the operating state of the sliding member and the cam constituting the loading and unloading apparatus of the present invention a multi-disc player in one embodiment, the conventional configuration described in the configuration according to an embodiment of the present invention The difference is that the lower portion of the bent piece 18b of the sliding member 18 which is slid to the left and right according to the eccentric rotation of the cam 17, which is a half moon type, is inclined outward. Since it is the same as, it is omitted, but it is notified that in the drawing the same reference numerals as the conventional reference numerals.

In the description of the operation of the present invention configured as described above, the action at the time of loading is the same as in the prior art.

When the unloading is selected, the anti-clockwise driving force of the main motor 16 is eccentrically rotated in the opposite direction to that of the loading, and the driving roller 24 and the upper plate 27 installed on the lower plate 25 are selected. The driven roller 26 installed in the also rotates in the opposite direction as when loading, the moment the curved surface of the cam 17 is in contact with the bending piece 18b formed on one side of the sliding member 18, the sliding member 18 ) Is completely moved to the right in the drawing, the moment the straight surface of the cam 17 is in contact with the bending piece (18b) formed in the sliding member 18 is returned to its original state and at the same time the case (2) The tray 3 in the tray 3 moves outward from the case 2 to mount the disk 5 which is unloaded and then moves back into the case 2.

On the other hand, when the cam 17 rotates eccentrically in the opposite direction as when loading, the moment when the lower portion of the straight surface of the cam escapes the lower inclined portion of the bent piece 18b formed on one side of the sliding member 18, As the sliding member 18, which was slowly sliding in the original state according to the rotation, receives the restoring force of the second coil spring 19 and moves quickly at a moment, the tray 3 is also proportional to the rapid moving distance of the sliding member 18. The drive roller moves rapidly to the inside of the case 2 by a distance, and accordingly, the disk 5 mounted on the tray 3 is rotated by the first reverse feed by the rotation of the drive roller 24 and the driven roller 26. Since it is quickly separated from the 24 and the driven roller 26, the secondary spring is continuously back-fed by the leaf spring 6 without interfering with the driven roller, so that the tray 3 can be stored smoothly.

In addition, Figure 6 is a front view showing the operating state of the sliding member and the cam constituting the loading and unloading device of the multi-disc player of the present invention in another embodiment and Figure 7 is a loading and unloading apparatus of the multi-disc player of the present invention As a plan view showing the operating state of the sliding member and the cam configured in another embodiment, the difference from the conventional configuration described in the configuration according to another embodiment of the present invention does not improve the cam 17 to the half moon type Instead of removing the bending piece 18b formed in one side of the sliding member 18 in a shape Protruding pin 32 is formed so as to be guided to the cam 17 of the shape, the other configuration is the same as the conventional configuration.

The description of the operation according to another embodiment of the present invention configured as described above will be fully understood by referring to the description of the operation according to one embodiment, and thus a detailed description thereof will be omitted.

Therefore, the present invention is smooth and smooth because the disc is driven back by the restoring force of the leaf spring without first interfering with the driving roller and the driven roller by receiving the rotational force of the driving roller and the driven roller when selecting the unloading There is an effect that it is stably stored in the magazine.

Claims (2)

The lower part of the bending piece 18b of the sliding member 18 sliding left and right according to the eccentric rotation of the half moon cam 17 is inclined outward so that the rotation of the driving roller 24 and the driven roller 26 during unloading is performed. Apparatus for loading and unloading a multi-disc player, characterized in that the disk (5) is the first reverse feed by the fall off the rotating drive roller (24) and driven roller (26) when the second reverse feed. Cam 17 for sliding the sliding member 18 to the left and right And a protruding pin 32 formed at the end of the sliding member 18 so as to be guided to the cam when the cam 17 is eccentrically rotated, thereby rotating the driving roller 24 and the driven roller 26 during unloading. Apparatus for loading and unloading a multi-disc player, characterized in that the disk (5) is the first reverse feed by the second roller is quickly separated from the rotating drive roller (24) and driven roller (26).