JPH06251481A - Disk loading device - Google Patents

Abstract

PURPOSE:To provide a disk loading device capable of easily taking out a loaded disk for a user at an emergency of a power failure and an electrical failure, etc. CONSTITUTION:At the emergency of the power failure and the electrical failure, etc., when a housed loading tray is taken out, first of all, a slide lever A18 is moved by moving a planet gear 16 along a circular arc rack part 12b, and a traverse system 27 is lowered. Then, only the slide lever B19 energized by a spring 36 is moved to the slide lever A18, and a relay gear 17 is driven by a rack part 25. Thus, the planet gear 16 engaged with a linear rack part 12a is driven to eject the loading tray 12 forcedly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc loading device for storing and ejecting a disc-shaped information recording medium such as a compact disc in a device body for reading the information.

[0002]

2. Description of the Related Art In a conventional disc loading apparatus, a loading tray on which a disc is placed is horizontally moved to be housed in an apparatus main body, and then a disc holder and a clamper are driven to clamp the disc on a turntable. However, the loading / unloading operation and the clamping operation of the loading tray are performed by using different driving sources.

A conventional disk loading device will be described below. 7 and 8 are sectional views in a direction parallel to the loading direction of the disc. FIG. 7 shows the loading process, and FIG. 8 shows the loading completion state. Reference numeral 1 is an apparatus main body, 2 is a loading tray, and 3 is a disk holder on which a disk 4 is placed. A traverse system 5 is composed of a turntable 6, an optical pickup 7 and the like, and is fixed to the apparatus body 1. A clamper 8 has a built-in magnet and the like and is held by a clamper lever 9 in a rotatable state. The clamper lever 9 is rotatably attached to the apparatus body 1. Also loading motor M1
Is provided in the apparatus main body 1 so as to drive the loading tray 2 and the disc holder 3 via a reduction gear and the loading motor M2 to drive the clamper lever 9 via another reduction gear, respectively.

The operation of the disk loading device having the above structure will be described below. First, as shown in FIG. 7, the disc 4 is placed on the disc holder 3 on the loading tray 2 and the loading operation is performed. In this case, the disc holder 3 is raised and the clamper lever 9 is also raised. In this state, the loading motor M1 horizontally moves the loading tray 2 to store the loading tray 2 in the apparatus main body 1. Then, in conjunction with the operation, another loading motor M2 lowers the disc holder 3 and the clamper lever 9. As a result, as shown in FIG. 8, the disc 4 is clamped by the clamper 8 on the turntable 6 in the traverse system 5, and the disc loading is completed.
At the time of ejecting, the operation reverse to the above operation is performed to eject the disk.

[0005]

However, in the above-mentioned conventional configuration, since the series of loading / unloading operations are performed only by the electric drive by the loading motor, the loading tray is discharged in an emergency such as a power failure or an electrical failure. There is a problem that it is impossible for the user to take out the loaded disc.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a disc loading device which can easily take out a disc without electrically driving a loading motor.

[0007]

In order to solve this problem, a disk loading apparatus of the present invention is a linear rack extending parallel to the disk insertion / ejection direction, and an arc-shaped rack continuous with the linear rack. A rack integrally formed with the loading tray for loading and unloading a loaded disk into and from the apparatus main body; and a linear rack that meshes with the rack to transmit the driving force of a motor to insert or eject the loading tray. The first gear and the first gear such that the first gear is rotatable along an arcuate rack.
And a first slide lever that is driven by an arm that rotates along the arcuate rack and that mounts or releases the disk reading means according to the movement of the arm. With respect to the first slide lever in which the reading means is released, it is provided so as to be independently movable in the disc insertion direction, and the movement causes the first gear meshing with the linear rack to eject the loading tray. And a second slide lever that drives a second gear that meshes with the first gear.

[0008]

According to the above construction, when the disc is normally inserted, the first gear drives the linear rack by the driving force of the loading motor to insert the loading tray. When the first gear meshes with the arcuate rack and moves while rotating, the arm that supports the first gear drives the first slide lever to mount the disc reading unit. When discharging, the reverse operation is performed.

When pulling out the loading tray in an emergency such as power failure or electrical failure, first of all
The gear is moved along the arcuate rack to move the first slide lever and release the disc reading means. After that, only the second slide lever is moved to drive the second gear that meshes with the first gear. This allows the first rack to engage the linear rack.
The loading tray can be forcibly ejected by driving the gear.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A disk loading device according to an embodiment of the present invention will be described below with reference to the drawings. 1 to 3 are a plan view and a side view of the disk loading device of this embodiment, and FIG. 4 is an enlarged view of a main part thereof.

In FIG. 1, reference numeral 11 is a disk loading device main body, 12 is a loading tray on which a disk 13 is placed, and is supported by the device main body 11 slidably in a inserting / discharging direction by a guide or the like. There is.
12a is a linear rack, 12b is an arc rack,
The loading tray 12 is continuously provided on the back surface of the loading tray 12 and is driven by a driving mechanism described later to move the loading tray 12 in and out.

Reference numeral 14 denotes an arm to which a sun gear 15, a planet gear 16 and a relay gear 17 which are driven by a loading motor 33 via a reduction gear 34 are rotatably mounted, and can be rotated concentrically with the rotation center of the sun gear 15. It is thus supported by the loading device main body 11. The planet gear 16 meshes with the linear rack 12a and the arcuate rack 12b, is driven by the sun gear 15 to drive the loading tray 12, and is also engaged with the relay gear 17.

Reference numeral 18 is a slide lever A and 19 is a slide lever B. As shown in FIG. 4, the slide lever A18 has a long hole portion 21 and the slide lever B19 has an L portion.
Each of the hole portions 22 is formed so as to engage with the arm pin portion 20 formed on the arm 14. These slide levers are supported by the engagement with the arm pin portion 20 so as to slide in the inserting / discharging direction with respect to the loading device main body 11 according to the rotation of the arm 14, and the slide lever will be described later. The traverse system 27 is driven.

A lock claw 24 is formed at one end of the slide lever A18, and when it is engaged with a lock lever 26 attached to the loading device main body 11, its movement in the discharging direction is restricted. A rack portion 25 is formed on the slide lever B19, and the relay gear 1
It is configured to be engageable with 7.

Reference numeral 27 is a traverse system composed of a turntable 29, an optical pickup 30 and the like.
As shown in the side view of (b), one end is supported by the disc loading device main body 11 so as to be rotatable.
A pin portion 28 is formed at the other end of the traverse system 27 and engages with a cam groove 23 formed in the slide lever A18,
The slide lever A18 can be moved up and down.

A clamper 31 is a clamper holder 32.
A clamper holder 32 is fixed to the disk loading device main body 11 so as to be rotatably held above and positioned above the turntable 29.

The loading operation of the disk loading device constructed as described above will be described. First, referring to FIG. 1, the loading tray 12 is pulled out.
When the disk 13 is placed on the disk and the loading operation is started, the loading motor 33 rotates and is transmitted from the sun gear 15 and the planet gear 16 to the linear rack portion 12a through the reduction gear 34, and the loading tray 12 loads the disk. The device body 11 is pulled in.
While the planet gear 16 meshes with the linear rack 12a, the lock lever 26 meshes with the lock claw 24 of the slide lever A18, and its movement is restricted.
Long hole 21 of slide lever A18, slide lever B
The rotation of the arm 14 in which the arm pin portion 20 is engaged with the L-shaped hole portion 22 of 19 is also restricted.

Next, as shown in FIG. 2, the planet gear 16 has an arcuate rack portion 12b which is continuous with the linear rack portion 12a.
The loading tray 12 is completely retracted into the disk loading device main body 11 at the time point when the loading tray 12 is engaged with. At this time, as shown by the broken line, the loading tray 12
Since a part of the lock lever contacts the lock lever 26 and the engagement with the lock claw 24 is released, the slide lever A18 becomes movable in the ejecting direction.

Therefore, as shown in FIG. 3, as the planet gear 16 engages with the arcuate rack portion 12b and rotates, the arm 14 begins to rotate concentrically with the rotation center of the sun gear 15. The rotation of the arm 14 causes the slide lever A18 and the slide lever B19 engaged with the arm pin portion 20 to move in the ejection direction. When the slide lever A18 further moves in the discharging direction, the traverse system 27 is raised by the engagement of the cam groove 23 and the pin portion 28 of the traverse system 27, and thus the turntable 29 is also raised.
The disc 13 on the loading tray 12 is lifted and clamped, and the clamper 31 is separated from the clamper holder 32 and can be rotated together with the disc. Although the loading of the disc has been described above, the ejection of the disc can be performed in the reverse order by driving the loading motor 33 in the reverse rotation.

Next, the discharge operation in an emergency will be described with reference to FIGS.
The explanation will be given with reference to. Normally, if the loading motor 33 is driven in the reverse direction, it can be electrically ejected, but it is difficult to take out the disc in the case of a power failure or an electrical failure of the P plate. This device is characterized in that the disc can be ejected without being electrically driven. That is, a through hole 35 is provided on the front surface of the exterior of the disk loading device main body 11 so as to face the slide lever B19, and a pin or the like is inserted from there to push the slide lever B19 so that it can be manually ejected. Is.

Slide levers A18 and B19 at this time
And the positional relationship between the arm 14 and the arm pin portion 20 of the arm 14 are shown in FIG.
Shown in. In the state shown in FIG. 3 in which the loading is completed, the arm pin portion 20 is at the a position of the elongated hole portion 21 and the L-shaped hole portion 22. When the slide lever B19 is pushed in from this state, the arm pin portion 20 moves from the position a to the position b,
Along with this, slide lever A18 and slide lever B
19 also moves at the same time. The arm 14 rotates together with the movement of the slide lever, and the planet gear 16 also moves along the arcuate rack portion 12b. When the slide lever A18 moves backward, the traverse system 27 descends and the clamp of the disk 13 is released.

When the arm pin portion 20 reaches the point c, the planet gear 16 of the arm 14 has a linear rack portion 12.
Rotate to a position where it meshes with a. From position c, through hole 3
When the pin inserted from 5 is pressed, only the slide lever B19 having the L-shaped hole portion 22 becomes movable, and the slide lever A18 stops. Slide lever B
19 is pushed further against the biasing force of the spring 36 to move the arm pin portion from the d position to the e position. During this time, the rack portion 25 formed on the slide lever B19 is engaged with the relay gear 17, and the planet gear 16 can be driven for a short time while rotating the relay gear 17 to move the loading tray 12 in the same direction as the discharging operation. it can.

The engagement between the rack portion 25 and the relay gear 17 is displaced when the loading tray 12 is slightly discharged from the apparatus main body 11, and then the loading tray 12 is pulled out by hand. After removing the disc 13, once load the loading tray 12 into the main body 11 of the apparatus.
When the slide lever B19 is stored in the position, the slide lever B19 returns to the original position by the bias of the spring 36.

As described above, according to this embodiment, after the slide lever A18 for lowering the traverse system 27 is moved, only the slide lever B19 is further pressed to drive the relay gear 17, and the loading tray 12 is ejected. Since it is configured as described above, the disc can be taken out by manually forcibly ejecting the disc without electrically driving the loading motor 33.

Further, in this embodiment, one loading motor 33 completes a series of loading / unloading operations. On the other hand, in the conventional configuration, two loading motors are used and two types of operations are performed in conjunction with each other, so that the timing is difficult and separate parts are required for each. Therefore, in this embodiment, the structure can be simplified, the number of parts can be reduced, the cost can be reduced, and the size and thickness can be reduced.

In the above embodiment, the slide lever A1
8, the traverse system 27 is moved up and down by engaging the cam groove 23 provided in 8 with the pin portion 28 formed in the traverse system 27.
Alternatively, a cam groove may be formed in the pin and the traverse portion 27 to be engaged with each other.

[0027]

As described above, according to the present invention, even if the loading motor is not electrically driven, the second slide lever is operated to simultaneously move the first slide lever until the disc reading means is released. After the movement, only the second slide lever is operated independently to forcibly move and project the loading tray. Therefore, it is possible to realize an excellent disk loading device that allows the user to easily take out the disk in an emergency such as a power failure or an electrical failure.

Further, since the loading tray can be inserted and ejected and the disc reading means can be attached and released by one loading motor, the structure can be simplified, the number of parts can be reduced, the cost can be reduced, and the size can be reduced. ,
Can be made thinner.

[Brief description of drawings]

FIG. 1A is a plan view of a disc loading apparatus according to an embodiment of the present invention when a loading tray is discharged. FIG. 1B is a side view of the apparatus when a loading tray is discharged.

FIG. 2 (a) is a plan view of the apparatus during loading, and FIG. 2 (b) is a side view of the apparatus during loading.

FIG. 3A is a plan view of the apparatus when loading is completed. FIG. 3B is a side view of the apparatus when loading is completed.

FIG. 4 is an enlarged view of a main part of the device.

FIG. 5 (a) is a plan view showing an ejection operation in an emergency of the apparatus. FIG. 5 (b) is a side view showing an ejection operation in an emergency of the apparatus.

FIG. 6 is an enlarged view of a main part showing an ejecting operation of the apparatus in an emergency.

FIG. 7 is a side view of a conventional disc loading device during loading.

FIG. 8 is a side view of the apparatus when loading is completed.

[Explanation of symbols]

 11 Device Main Body 12 Loading Tray 12a Linear Rack Part 12b Arc Rack Part 13 Disk 14 Arm 15 Sun Gear 16 Planet Gear 17 Relay Gear 18 Slide Lever A 19 Slide Lever B 20 Arm Pin Part 22 L-Shaped Hole 25 Rack Part 29 Turntable 31 Clamper 36 Spring

Claims (1)

[Claims] 1. A linear rack extending parallel to the disc insertion / ejection direction and an arc-shaped rack continuous with the linear rack are integrally formed, and the loaded disc can be taken in and out of the apparatus main body. A loading tray for performing, a first gear that meshes with the linear rack to transmit a driving force of a motor to insert or eject the loading tray, and the first gear rotates along an arc-shaped rack. It is driven by a rotatable arm that supports the first gear so as to be movable, and an arm that rotates along the arcuate rack, and mounts or releases the disc reading means according to the movement. The first slide lever and the first slide lever in which the disc reading unit is released are independently movable in the disc insertion direction. As the first gear that meshes with the linear rack by moving discharging the loading tray, the disk loading apparatus and a second slide lever that drives the second gear meshing with said first gear.