JPH08263911A - Tray type housing device - Google Patents

Abstract

PURPOSE: To prevent a disk from slipping down when the device is inclined. CONSTITUTION: In a disk player, holding force (p) of a gear 22 for the purpose of holding a tray 13 in an open position is set to a prescribed value. Then, the weight of the tray 13 is set to a prescribed value, so as to make force to be applied to the gear by weighting of the tray 13 and the disk 1 equivalent to or larger than the holding force (p) when the device is inclined at more than a prescribed angle. Consequently, when the disk player is inclined, the tray 13 is started to slide backward against the holding force (p) of the gear 22 by weighting of the tray 13 and the disk 1. In this case, a projecting part 26 is separated from an open switch 27 to turn off this switch. A motor gear 23 is driven by a control means upon detection of this switching off to close the tray 13. Thus, when the disk player is inclined, the tray 13 is automatically closed, and the disk 1 is prevented from slipping down into the device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray type storage device. More specifically, the present invention relates to a tray type storage device capable of closing a tray when the tray type storage device is tilted and preventing a disc placed on the tray from slipping off.

[0002]

2. Description of the Related Art For example, in a general disc player 10 as shown in FIG. 6, a disc 3 which is slid forward and backward is used to store or take out a disc 1 from the disc player 10. The tray 3 is driven by a motor (not shown) and is opened or closed through a tray hole 4a provided on the front surface of the cabinet 4.

For example, when the disc 1 is housed inside the disc player 10 from the outside, the disc 1 is placed on the opened tray 3. Then cabinet 4
The tray 3 is closed by pressing an open / close key (not shown) provided on the front panel of the tray. As a result, the disc 1 is conveyed to the internal reproducing position and reproduced by the reproducing unit 5 including an optical pickup, a turntable and the like.

When taking out the disc 1 stored in the disc player 10, the open / close key is pressed with the tray 3 closed to open the tray 3 on which the disc 1 is placed. As a result, the disc 1 is conveyed to a position where it can be taken out.

[0005]

By the way, in the above-mentioned disc player 10, the tray 3 can be opened even when the main body is tilted as shown in FIG. Further, when the tray 3 is open, when the main body of the disc player 10 is tilted, the tray 3 remains open as a matter of course. In such a case, the disc 1 may slip out of the tray 3 and fall into the cabinet 4. Then, the optical disc and the like of the reproducing section 5 is damaged by the disc 1 that has slipped down,
There is a problem that the tray 3 cannot be opened / closed depending on the position where the disc 1 is dropped.

In order to prevent the disc 1 from sliding down, the tray 3 has a mounting portion 3a depending on the diameter of the disc 1.
However, if the disc player 10 is generally tilted by 40 degrees or more by such means,
The disc 1 slips off the tray 3. When vibration is applied to the tilted disc player 10, the disc 1 may slip off the tray 3 even if the angle is less than or equal to the above angle. Although it is conceivable to provide an angle sensor in the disc player 10 in order to prevent this, there is a problem in that the configuration becomes complicated and this causes an increase in manufacturing cost.

Therefore, the present invention solves the above-mentioned problems and provides a tray storage device capable of preventing the disc 1 from slipping off with a simple structure.

[0008]

In order to solve the above problems, in the present invention, in a tray type storage device having a slidable tray for placing and opening or closing a disc, the tray is slid. Together with the driving means for holding the tray after sliding at a predetermined position with a predetermined holding force, a position detecting means for detecting the position of the tray, and a driving means when the position detecting means detects that the tray is not at the predetermined position. And a control means for driving the tray type storage device, and the weight of the tray and the disc when the tray type storage device is tilted at a predetermined angle or more is set to be larger than the holding force of the driving means. is there.

[0009]

When the tray type storage device according to the present invention is tilted, the weight of the tray and the disc exceeds the holding force of the driving means, so that the tray starts sliding against the holding force of the driving means. At this time, the position detecting means detects the movement of the tray, and the control means drives the driving means to automatically close the tray.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the tray type storage device according to the present invention applied to a disc player will be described in detail with reference to the drawings.

The disc player 20 shown in FIG. 1 is provided with a tray 13 for storing or taking out the disc 1 such as a CD. A mounting portion 13a corresponding to the diameter of the disc 1 is recessed on the upper surface of the tray 13, and the disc 1 is mounted thereon.

The tray 13 is formed of a heavy material such as titanium and has a predetermined weight, for example, 500 to 600 g.
It is set to a degree. Further, a rack 21 is formed on the lower surface of the tray 13 along the front-rear direction. A gear 22 meshes with the rack 21, and a motor gear 23 directly coupled to the shaft of a driving means (not shown) meshes with the gear 22.

Position detecting means for detecting the position of the tray 13, that is, an open switch 27 and a close switch 28 are attached near the front end and the rear end of the lower surface of the tray accommodating portion 14a. A protrusion 26 is formed on the lower surface of the tray 13 so as to be located between the open switch 27 and the close switch 28.

When the tray 13 is opened, the protrusion 26
Contacts the open switch 27 and turns it on. When the disc 1 is stored inside the disc player 20, the disc 1 is placed on the opened tray 13. After that, the motor gear 23 is driven to slide the tray 13 rearward as shown in FIG. At this time,
The open switch 27 is turned off when the protrusion 26 is separated. By this closing operation, the disc 1 is conveyed to the reproducing position inside the disc player 20 and reproduced by a reproducing unit (not shown) including an optical pickup, a turntable and the like. When the closing operation of the tray 13 is completed, the protrusion 26 contacts the close switch 28 to turn it on.

When the disc 1 stored in the disc player 20 is taken out, the motor gear 23 is rotationally driven in the opposite manner to the above, and the tray 13 is slid forward from the closed state of the tray 13. At this time, the protrusion 26 separates from the close switch 2
8 turns off. This open operation causes disk 1
Are transported to a position where they can be taken out. In addition, tray 1
When the opening operation of No. 3 is completed, the protrusion 26 comes into contact with the open switch 27 to turn it on.

By the way, the operation of opening or closing the tray 13 is performed by an open / close key (not shown) on the front surface of the cabinet, when the tray 13 itself is pushed by a finger, or when the disc player 20 itself is tilted. It is done by either. The operation in each case will be described below.

First, the operation of opening or closing the tray 13 by the open / close key will be described. The open or close operation described below is controlled by the control means (not shown) provided in the disc player 20. As shown in FIG. 3, when the open / close key is first pressed to turn it on, it is detected whether the open switch 27 is on (step 101). When the open switch 27 is on, it is determined that the tray 13 is in the open position, the time measurement is started (step 102), and the motor gear 23 rotates in the closing direction of the tray 13 (step 103).

Thereafter, it is detected whether or not the open switch 27 is off (step 104). If the open switch 27 is off, it is determined that the tray 13 is in the closing operation. Then close switch 2
It is detected whether 8 is on (step 106),
If this is ON, the closing operation of the tray 13 has been completed, so the motor gear 23 is stopped (step 1
07).

On the other hand, if the open switch 27 is still on in step 104, the detection operation is repeated for 4 seconds (steps 104 and 105), and after 4 seconds have passed without the open switch 27 being turned on, The motor gear 23 is stopped (step 107).

When the open switch 27 is off in step 101, it is determined that the tray 13 is in the closed position, the time measurement is started (step 112), and the motor gear 2 is moved in the open direction of the tray 13.
3 rotates (step 113). Then, it is detected whether or not the close switch 28 is off (step 1
14) If the close switch 28 is off, it is determined that the tray 13 is in the open operation. Then, it is detected whether or not the open switch 27 is on (step 116), and if this is on, the tray 13 is detected.
Since the open operation has been completed, the motor gear 23 is stopped (step 107).

On the other hand, if the close switch 28 is still on in step 114, the detecting operation is repeated for 4 seconds (steps 114 and 115), and after 4 seconds have passed without the close switch 28 being turned on, The motor gear 23 is stopped (step 107).

Next, the closing operation of the tray 13 performed when the tray 13 itself is pushed with a finger will be described. FIG.
The user presses the open tray 13 shown in (1) with his / her finger to move it slightly backward, thereby rotating the gear 22 in the stopped state. As a result, the protruding portion 26 is separated from the open switch 27, and this is turned off. When it is detected that the open switch 27 is turned off, the control means (not shown) drives the motor gear 23 and the tray 13 is closed.

The holding force p for holding the tray 13 in the open position by the gear 22 in the stopped state is, for example, 1 kg.
Heavily preset. Therefore, in order for the user to push and close the tray 13, a pressing force of 1 kg weight or more may be applied. By setting like this,
The user does not need to apply a very strong pressing force, and the tray 13 is not closed by merely touching it, so that the user can stably attach and detach the disc 1.

Further, the closing operation of the tray 13 performed when the disc player 20 itself is tilted will be described.
In the disc player 20, the weight of the tray 13 is 500 to 500 in advance so that the force applied to the gear 22 by the combined weight of the tray 13 and the disc 1 becomes equal to or more than the holding force p when the disc player 20 is tilted by a predetermined angle or more. It is set to about 600g. The weight of the disc 1, for example, a CD is about 20 g. Therefore, when the disc player 20 is tilted by 60 degrees as shown in FIG. 4, the tray 13 starts sliding backwards against the holding force p of the gear 22 in the stopped state due to the weight of the tray 13 and the disc 1. .

At this time, the projecting portion 26 separates from the open switch 27 (FIG. 1) and is turned off. When it is detected that the open switch 27 is turned off, the control means (not shown) drives the motor gear 23 (FIG. 1) to close the tray 13. When the disc player 20 is tilted in this manner, the tray 13 is automatically closed, so that the disc 1 is prevented from slipping into the inside of the device.

In this example, the tray 13 is 500 to 60.
Although a heavy material such as titanium is used to set the weight to about 0 g, for example, in a disc changer in which three or five discs 1 are placed on a single tray, the tray is necessarily large and heavy. Therefore, it is possible to apply a load exceeding the holding force p of the gear 22 without using a material such as titanium. In addition, as shown in FIG.
A plate-shaped reinforcing member 31 may be attached to the lower surface of the left and right sides. The reinforcing material 31 can not only set the weight of the tray 13 to a predetermined value but also prevent the tray 13 from warping.

Further, when the disc player 20 shown in FIG. 4 is tilted, the tray 13 is attached to the gear 22 (FIG. 1).
Also, due to the weight of the disc 1, a force in the closing direction is always applied. If the open / close key is pressed to open the tray 13 in this state, the result shown in FIG.
Since it is not detected that the close switch 28 is turned off in step 114 shown in 4), the motor gear 23 stops after 4 seconds (step 115) (step 107).

As described above, when the disc player 20 is tilted, the operation of the open / close key is invalid, and the tray 13 is not opened, so that the disc 1 is prevented from sliding down inside the apparatus.

[0029]

As described above, according to the present invention, in a tray type storage device having a slidable tray for placing and opening or closing a disc, the tray is slid and the slid tray is set at a predetermined position. A drive means for holding the tray with a predetermined holding force, a position detection means for detecting the position of the tray, and a control means for driving the drive means when the position detection means detects that the tray is not at the predetermined position, The weight of the tray and the disc when the tray type storage device is tilted by a predetermined angle or more is set to be larger than the holding force of the driving means.

Therefore, according to the present invention, slipping of the disk when the device is tilted is prevented with a simple structure.
It is possible to prevent the occurrence of device failure without increasing the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a disc player 20 to which a tray type storage device according to the present invention is applied.

FIG. 2 is a sectional view showing a closed state of the tray 13.

FIG. 3 is a diagram showing an operation procedure of opening / closing by key operation.

FIG. 4 is a sectional view showing a closing operation of the tray 13 when the disc player 20 is tilted.

FIG. 5 is a top view of the tray 13 to which a reinforcing member 31 is attached.

FIG. 6 is a block diagram of a conventional disc player 10.

FIG. 7 is a cross-sectional view showing slippage of the disc 1 when the conventional disc player 10 is tilted.

[Explanation of symbols]

 1 Disc 3,13 Tray 4,14 Cabinet 10,20 Disc Player 21 Rack 22 Gear 23 Motor 26 Projection 27 Open Switch 28 Close Switch

Claims (1)

[Claims] 1. A tray type storage device having a slidable tray for mounting and opening or closing a disc, wherein the tray is slid and the slid tray is held at a predetermined position with a predetermined holding force. Drive means for driving the tray, position detecting means for detecting the position of the tray, and control means for driving the driving means when the position detecting means detects that the tray is not at the predetermined position, A tray type storage device, wherein a weight by the tray and the disc when the type storage device is tilted by a predetermined angle or more is set to be larger than the holding force of the drive means.