JPS61253666A - Carrying-in, carrying-out of disk and clamping mechanism for disk player - Google Patents

Abstract

PURPOSE:To make a structure simple and small in size by constituting it so that a disk is carried in and made to descend by rotating a motor in one direction and the disk is made to ascend and carried out by rotating a motor in the other direction. CONSTITUTION:When a disk is inserted into a device, a loading motor 1 rotates counterclockwise and a decelerating gear 4, a planet gear part 5 and a loading roller gear 10 are rotated counterclockwise and a disk 7 is placed between a driving roller 11 and a driven roller 13 on a guide rail 12 and led in onto a turntable 14. Next, when a notch gear 18 is unlocked by a switching plunger 16, the rotation of the driving roller 11 stops. When an upper and lower lever cam gear 25 is rotated counterclockwise by the planet gear 5, upper and lower levers 26, 27 move in the direction I, respectively, the guide rail 12 descends and the disk is set onto the turntable 14, clamped by a clamper 30 and a motor 1 stops. In case of carrying out the disk, when the motor 1 is rotated in reverse clockwise, the mechanism of each part executes a reverse operation and the disk is discharged to the outside of a player.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk loading/unloading and clamping mechanism in a disk player. The loading/unloading and clamping mechanism of the present invention is suitable for, for example, compact discs (CDs).
It is used in players, etc., and the disc is automatically loaded onto the turntable inside the player and clamped before the performance starts, and after the performance is finished, the clamp is automatically released and the disc is taken out of the player.

[Conventional technology]

The loading/unloading and clamping mechanism for a disc in a conventional disc player involves two operations: loading and unloading the disc into the player, and releasing the clamp and lifting the loaded disc to mount it on a turntable or to unload the disc. In order to do this, two motors are prepared and each motor performs its own operation.

[Problem that the invention seeks to solve]

As described above, the disk loading/unloading and clamping mechanism in the conventional disk player requires two motors for loading/unloading the disk, etc., resulting in a complicated structure, an increase in size, and an increase in cost.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention includes a mounting part on which a disc is placed in a disc player, and a turn for rotating the disc that is located at a lower position when the mounting part is in the raised position. A table, a disk loading/unloading mechanism including a drive roller that carries the disk into or out of the loading section, a loading section up/down mechanism that raises and lowers the loading section relative to the turntable, and a top of the turntable. A clamping mechanism that includes a clamper for clamping a disc, which moves the clamper up and down in conjunction with the mounting part vertical mechanism to clamp when the mounting part descends and unclamp it when it rises, in both forward and reverse directions. a motor that can rotate to
a. A planetary gear that can be switched so as to transmit the signal to either one of the mounting section vertical mechanisms, and the planetary gear is placed on the mounting section vertical mechanism side when the disk loading is completed, and on the disk loading/unloading mechanism side when the disk lift is completed. Loading a disk in a disk player comprising a switching mechanism including a notched gear for switching, loading and lowering the disk by rotating the motor in one direction, and lifting and unloading the disk by rotating the motor in the other direction. An ejection and clamping mechanism is provided.

[For production]

When loading a disc into the player, the motor is rotated in one direction. The rotational power of the motor is transmitted to the disk loading/unloading mechanism via the planetary gear, and the disk is loaded into the player and placed on the mounting section by the disk loading/unloading mechanism.

When the loading of the disc is completed, the switching mechanism switches the planetary gear from the disc loading/unloading mechanism side to the loading unit vertical mechanism side, the rotational power of the motor is transmitted to the loading unit up/down mechanism, and the loading unit is connected to the turntable. It is lowered against. As a result, the disc is mounted on the turntable, and the clamp mechanism is activated to clamp the disc on the turntable.

When the disc is to be taken out of the player after the performance is over, the motor is rotated in the opposite direction, the clamping mechanism releases the disc from the disc, and the placing part up/down mechanism is raised, thereby removing the disc from the turntable. removed and lifted up.

When the disk has finished rising, the switching mechanism switches the planetary gear from the platform vertical mechanism side to the disk loading/unloading mechanism side, the rotational power of the motor is transmitted to the disk loading/unloading mechanism, and the disk loading/unloading mechanism moves the disc to the player. being carried outside.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk loading/unloading and clamping mechanism in a disk player as an embodiment of the present invention will be described below with reference to the drawings.

The illustrated example device is a case where the present invention is applied to a compact disc player, and FIG. 1 is a schematic plan view of the example device, and FIG. 2 is a view taken from the direction of arrow A in FIG. 3 is a schematic side view as seen from the direction of arrow B in FIG. 1; FIG. 4 is a schematic front view as seen from the direction of arrow C in FIG. 1; The figure is a front view showing in detail the main part of the present invention in FIG. 1, and FIG. 6 is a side view showing the main part of the invention in FIG. 2 in detail.

The guide rail 12 is for placing a disk carried into the player, and by moving up and down relative to the turntable 14 by a mechanism described later, the disk placed on the guide rail 12 is placed on the turntable. 14 can be attached or removed. A driven roller 13 is attached to the guide rail 12 so as to be in contact with the lower surface of the disk, and a driving roller 11 for loading and unloading the disk is arranged on the opposite side of the driven roller 13 across the disk. . Drive roller 11
is fixed to the clamp shaft 35 and rotated by rotating the loading roller gear 10 integrated with the clamp shaft 35.

The loading motor 1 is a motor that can rotate in both forward and reverse directions, and its rotational force is transmitted by a pulley 2 attached to the loading motor 1 via a belt 3 to a pulley-integrated reduction gear equipped with several stages of reduction parts. 4 can be conveyed. The reduction gear 4 is connected to one gear portion 5 (q) of the planetary gear 5, and the other five gear portions of the planetary gear 5 are pivoted so as to be connected to one of the loading gear 6 or the upper and lower lever cam gears 25. It is possible to move. The loading gear 6 is connected to a loading roller gear 10 via a belt 7, a gear 8, and a gear 9.

The vertical lever cam gear 25 is engaged with the groove 27 (a) of the right vertical lever 27 by a dowel 37, and is also engaged with a similar groove of the left vertical lever 26 via a shaft 36. Right and left up and down levers 26.27
are provided with grooves 26(bl, 27(b)) each having an inclination.The protruding piece 12(a) protruding from the side surface of the guide rail 12 is connected to the vertical groove 38 of the fixing plate 38, 39.
(al, 39(a) and grooves 26(b), 27(bl) of the upper and lower levers 26.27 and extend outward.

The clamper 30 is supported by clamp arms 28 and 29 so as to be movable in the vertical direction.

The clamp arms 28 and 29 are engaged with protruding pieces in grooves (not shown) having slopes provided on the vertical levers 26 and 27, and the clamper 30 can be raised and lowered by the lateral movement of the vertical levers 26 and 27. It looks like this.

The switching plunger 16 is the disk insertion completion switch (
(not shown), and when activated, the connected lock lever 17 is sucked to unlock the notched gear 18. The detailed structure of this notched gear 18 is shown in FIG.

In FIG. 7, the notched gear 18 has a notched portion 18 (a) in which diametrically opposing tooth portions are notched.

18(b). An oval temporary cam 185 is coaxially fixed to the notched gear 18, and the temporary cam 185
has recesses 185(a), 185 at longitudinally opposite ends.
(b). Further, a bias lever 19 is rotatably supported coaxially with the notched gear 18.

An iron-shaped bias spring 20 is fixed to the tip of the bias lever 19 with the protruding piece 19(a) as a fulcrum, and the bias spring 20 pinches the diagonal side of the temporary cam 185 in the illustrated position. The force biases the plate cam 185, that is, the notched gear 18, so as to apply an urging force in the direction of the arrow in the figure. This bias lever 19 is engaged with a right-side upper and lower lever 27 by a projection piece 19 (a), and this upper and lower lever 27 engages the 11 of the plate cam 185.
It is designed to be rotated approximately 90 degrees compared to a rotation of 30 degrees.

Notch 185 (a) of temporary cam 185 or 185
(b) shows a lock lever 17 connected to the plunger 16.
It can be locked by.

A protruding piece 18 (C1) is also attached to the notched gear 18, and the protruding piece 18 (C) slidably engages with a slot 23 (al) provided on the switching lever 23. is a gear that can rotate in both directions.

The operation of the above-mentioned switching gear 18 will be explained. In FIG. 7, the drive gear 21 is rotated in the direction of arrow J by a motor. A bias spring 20 fixed to the bias lever 19 applies a rotational force to the notched gear 18 in the direction of the arrow in the figure. While the lock lever 17 of the locking mechanism locks the notch 185(b) of the temporary cam 185,
The drive gear 21 does not mesh with the notched gear 18 because of the notched portion 18(a) of the notched gear 18.

When the plunger 16 is now attracted and the lock lever 17 is disengaged from the notch 185 (b) of the plate cam 185, the notch gear 18 rotates in the direction due to the piascus, engages with the drive gear 21, and is driven by the drive gear 21. It is further rotated in the direction of . Along with this rotation, the projection piece 18 (
The switching lever 23 engaged in C) is moved in the direction of the arrow in the figure to perform work. When the notch gear 18 rotates half a turn until it reaches the notch 18(b) on the opposite side, the notch gear 18 and the drive gear 21 are disengaged, the plunger 16 is released, and the notch 185a is moved to the lock lever.
It is locked again at 17 and the rotation of the notched gear 18 is stopped.

During this time, the bias lever 19 is rotated approximately 90 degrees in the L direction by the right up/down lever 27, and is eventually switched to the position shown in FIG. In this position, the bias lever 19
The bias spring 20 moves the plate cam 185 in the direction of arrow E in FIG.
It will be biased in the direction.

Therefore, when the motor reverses in the next operation, the drive gear 21 rotates in the direction of the arrow in FIG. 8, and when the lock mechanism is released, the notch gear 18 meshes with the drive gear 21 and rotates in the E direction. As the switching lever 23 is rotated, the engaged switching lever 23 is moved in the direction of arrow F and rotated half a turn until it reaches the notch 18(a) on the opposite side again.
As soon as the mesh is disengaged, the locking mechanism is activated and rotation stops.

During this time, the bias lever 19 is rotated approximately 90 degrees in the F direction by the up and down lever 27 and returns to the state shown in FIG.

The switching lever 23, which is engaged with the notched gear 18 and the projection piece 18(C), is engaged with the planetary gear holder 24 of the planetary gear 5 by a leaf spring, and the planetary gear 5 is connected to the loading roller gear 10 or the vertical cam lever gear. 25 to one side.

The operation of the apparatus of this embodiment will be explained below.

First, when a disk is inserted into the apparatus, a switch (not shown) is turned on, and the loading motor 1 rotates counterclockwise in FIG. 6. This rotation is controlled by belt 3 by pulley 2.
The signal is transmitted to the reduction gear 4 via the reduction gear 4, rotates the reduction gear 4 counterclockwise, and then passes through several reduction sections to the planetary gear section 5. Rotate counterclockwise.

At this time, the gear portion 5□ of the planetary gear 5 is meshed with the loading gear 6, and the rotation of the planetary gear 5 causes the loading gear 6 to rotate counterclockwise, and the rotation of the loading gear 6 causes the belt 7 and the gear 8.9 to rotate. The signal is transmitted to the loading roller gear 10 via the filter to rotate the loading roller gear 10 counterclockwise. Accordingly, the drive roller 11 mounted on the shaft 36 of the loading roller gear 10 is rotated counterclockwise, whereby the disc is rotated between the drive roller 11 and the driven roller 13 mounted on the guide rail 12. table 1
It is pulled up to 4.

When the loading of the disc into the player is completed, the insertion completion lever 15 is pushed by the disc and an insertion completion switch (not shown) is turned on, thereby attracting the switching plunger 16 and moving the lock lever 17 engaged with it to the sixth position. Move it in the direction of arrow H in the figure to unlock the notched gear 18. As a result, the notched gear 18 meshes with the driving gear 21 which is being rotated via the planetary gear 5 and the belt 41 by the clockwise bias of the bias spring 20 attached to the bias lever 19, and faces each other as described above. Rotate half a turn clockwise until the notch disengages. At this time, since the suction of the switching plunger 16 has been released, the switching gear 18 is locked again by the lock lever 17 and rotation is stopped.

Along with this half-rotation movement of the switching gear 18, the switching lever 2 engaged with the protruding piece 18(C) of the switching gear 18
3 moves in one direction, and this switching gear 23 and temporary spring 40
The planetary gear holder 24 engaged at is rotated counterclockwise to mesh the planetary gear portion 5° with the upper and lower lever cam gears 25. As a result, the transmission of rotational force to the loading gear 6 is interrupted, and as a result, the rotation of the drive roller 11 is stopped.

When the upper and lower lever cam gears 25 are rotated counterclockwise by the planetary gear 6, the dowels 37 of the upper and lower lever cam gears 25
The upper and lower levers 27 move in one direction in FIG. 2 by engagement with the grooves 27 (a) of the upper and lower levers 27. Similarly, the vertical lever 26 moves downward in FIG. As the vertical levers 26 and 27 move in one direction, as shown in FIG.

The disc 27(b) is moved downward by the inclination, and therefore the guide rail 12 is lowered, and as a result, the disc resting on the guide rail 12 is set on the turntable 14.

As the vertical levers 26, 27 move in one direction, the clamp arms 28, 29 are moved by the inclination of the grooves (not shown) of the vertical levers, and the clamper 30 attached to the tip is lowered to turn the disc. Clamp on table 14. Furthermore, by moving the vertical lever 27 in one direction, the bias lever 19 engaged with the vertical lever 27 is rotated clockwise in FIG. Can be turned counterclockwise. When the lowering of the guide rail 12 is completed and the clamping is completed, the clamping completion switch 41 is turned on by the vertical lever 27, thereby stopping the loading motor 1.

In order to eject the disc and open the clamp, the loading motor 1 is reversed clockwise by pressing an eject button (not shown) on the front of the player. As a result, each mechanism operates in the opposite manner to that described above, and the disk is raised together with the guide rail 12, and then ejected from the player by the drive roller 11. in this case,
The driving gear 21 rotates in the opposite direction to that at the time of loading due to the reversal of the loading motor 1 when the disc is ejected, but since the bias direction of the notched gear 18 is opposite as described above, the notched gear 18 Lock is plunger 16
When it is released by suction, it can engage with the drive gear 21, thereby making it possible to operate in the opposite direction for ejecting the disk.

〔Effect of the invention〕

According to the present invention, a single motor is used to transport the disk,
Can be carried out and clamped, simplifying the structure.
It is possible to downsize and reduce costs. Also, setting the disc on the turntable,
Furthermore, since the timing of raising and clamping is performed by moving a pair of levers, the operation timing can be stabilized.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view of the embodiment device, FIG. 2 is a schematic side view seen from the direction of arrow A in FIG. 1, and FIG.
FIG. 4 is a schematic side view seen from the direction of arrow B in the figure, FIG. 4 is a schematic front view seen from the direction of arrow C in FIG. 1, and FIG. 5 is a main part of the present invention in FIG. 1. 6 is a side view showing in detail the essential parts of the present invention in FIG. 2, FIG. 7 is a view showing details of the notched gear portion, and FIG. FIG. 7 is a diagram for explaining the operation of the notched gear portion, and FIG. 9 is a diagram for explaining the operation of the embodiment device. 1... Loading motor, 2... Pulley, 4... Reduction gear, 5...
...Planetary gear, 6...Loading gear,
7...Belt, 8.9...Gear, 10
... Loading roller gear, 11 ... Drive roller, 12 ... Guide rail, 13 ... Followed roller, 14 ... Turntable, 16 ... Switching plunger, 17 ... Lock lever, 18.・Notched gear,
19... Bias lever, 20... Bias spring, 21... Drive gear, 23
...Switching lever, 24...Planetary gear holder, 2
5...Upper and lower cam lever gear, 26.27...Upper and lower lever, 28.29...Clamp arm, 30...Clamper. Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 23(a) 1 Figure 71 Figure 8

Claims (1)

[Scope of Claims] A mounting section on which a disc is placed in a disc player, a turntable for rotating the disc that is positioned at a lower position when the mounting section is in a raised position, and a turntable for placing the disc on the mounting section. A disk loading/unloading mechanism that includes a drive roller for loading or unloading the disk from the platform, a platform vertical mechanism that raises and lowers the platform relative to the turntable, and a clamp that includes a clamper that clamps the disk on the turntable. a mechanism that moves the clamper up and down in conjunction with the platform up-and-down mechanism to clamp the platform when it descends and release the clamp when it rises; a motor that can rotate in both forward and reverse directions; a planetary gear that can be switched to transmit rotational power to either the disk loading/unloading mechanism or the platform vertical mechanism; A switching mechanism including a notched gear that switches to the disk loading/unloading mechanism side when the ascent is completed, and the disk is loaded and lowered by rotation of the motor in one direction, and lifted and unloaded by rotation in the other direction. A disc loading/unloading and clamping mechanism in a disc player characterized by: