JP3155959B2 - Disc lock mechanism in disc changer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a CD, a CD-R
The present invention relates to a disk lock mechanism in a disk changer such as an OM and an LD.

[0002]

2. Description of the Related Art Conventionally, as this kind of disc changer, one shown in FIGS. 4 to 7 is known. As shown in these figures, in particular, FIG. 7, the disc changer includes a disc housing 2 in which a plurality of discs 1 are housed in parallel with each other, and the plurality of discs housed in the disc housing 2. 1 to take in a desired disc 1 from the disc housing 2
And a transporter 3 for returning the disc 1 to its original position after reproduction. The disk housing 2 is provided with guides 4 for storing the disks 1 at a constant pitch P. Further, a plate-shaped spring 10 is attached to the disk housing 2 via a holding plate 11 so that the disk 1 is held at a predetermined position of the disk housing 2.

A lock member 12 for restricting removal of the stored disk is provided in the disk storage body 2 so as to be rotatable about a shaft 12a, and a spring (elastic member) 14 always restricts removal of the disk 1. Biased in the direction. Reference numeral 2b denotes a stopper that regulates the rotation position of the lock member 12. If the disk 1 is inserted into the disk housing 2 with a force against the force of the spring 14, the lock member 12 can escape in the direction in which the disk 1 is inserted. The member 12 bites and prevents the disk from being taken out. As described above, since the disc 1 and the lock member 12 bite in the direction in which the disc 1 is taken out, the force of the spring 14 need only be a small force for raising the lock member 12. The disk housing 2
Is provided with a take-out button (operation member) 16, which can forcibly unlock the lock member 12 and take out the disc.

When the disk 1 is stored in the disk housing 2, the disk 1 may be inserted while pushing the lock member 12 along the guide 4 with a force against the force of the spring 14. The transporter 3 is provided with a disk removal mechanism that sandwiches the disk 1 stored in the disk storage body 2 from the thickness direction thereof and takes in the disk 1 into the transporter 3 (not shown). The transporter 3 has a guide 6 for guiding the disk 1 to be loaded as described above, and the disk 1
When loading the disk, a positioning member 5 for positioning the disk housing 2 and the transporter 3 is provided.
The positioning member 5 is movable in a direction toward the disk housing 2, and is fitted into a guide recess (fitting portion) 2 a of the disk housing 2, whereby the transfer device 3 with respect to the disk housing 2 is moved. Positioning is performed.

Here, regarding a series of operations of disk removal and return, changes in each mode state of main components, that is, the position of the disk removal member, the open / close state of the disk removal member, the opening / closing of the disk guide 5, and the LOCK of the positioning member. This will be described with reference to FIG.
First, a desired disk 1 is selected from the disks stored in the disk storage body 2, and the transporter 3 is stopped at the position of the disk 1. This state is shown in FIG.
ESET mode. Next, after positioning of the transporter 3 with respect to the disk housing 2 by the positioning member 5, a disk extracting member (not shown) is brought close to the disk housing 2, and the disk holding portion of the disk extracting member is closed, whereby the desired disk 1 is placed. Pinch it. The disk removing member is driven by a driving means (not shown) by the transporter 3.
Is moved together with the disk 1 to a predetermined position in the disk.
This state is the DISK IN mode in FIG.

In this state, the disk 1 is clamped by clamping means (not shown), the disk holding portion of the disk removing member is opened to release the disk 1, and the disk guide 6 is also opposed to the spring 7. The disc 1 is sufficiently separated from the disc 1 to be reproduced by well-known reproducing means (not shown). This state is shown in FIG. 5, which is the PLAY mode in FIG. When the disc 1 is returned to the disc housing 2, the operation is reversed.
As described above, FIG. 4 shows the state when the disk is selected (RESET
FIG. 5 shows the state of the disc playback (PLAY).
Mode). FIG. 6 shows a state when the disk is taken out.

[0007]

In the above-described conventional disc changer, when the disc is played (PLAY)
In the state of (mode), the portion of the disc housing 2 where the disc being reproduced is stored is empty, and there is a risk that a new disc may be inserted by mistake during the reproduction. In the state where a new disk is inserted in this way, when the reproduction of the disk is completed and the disk 1 is to be returned to the disk housing 2, the disk 1 tries to push out the newly inserted disk. However, since the movement of the newly inserted disk in the removal direction is restricted by the lock member 12, the disk is not pushed out, and thus the disk may be damaged or the disk loading mechanism may be damaged.

As described above, in order to prevent a new disc from being inserted by mistake during playback, a panel is provided which covers the entire disc ejection side of the disc housing 2, and this panel is open. In some cases, it is necessary to prevent the disk from being reproduced. However, providing such a panel causes a new problem that the cost is increased. SUMMARY OF THE INVENTION In view of the above, according to the present invention, a disc changer in which a new disc cannot be inserted into a vacant portion of the disc housing 2 in which the disc 1 being reproduced is stored while the disc 1 is being reproduced. It is an object to provide a locking mechanism.

[0009]

A disk lock mechanism in a disk changer according to the present invention, which solves the above-mentioned problems and achieves the above object, comprises a disk in which a plurality of disks are accommodated in parallel with each other. A storage unit, and a transporter that moves in the thickness direction of the plurality of disks stored in the disk storage unit, takes in a desired disk from the disk storage unit, and returns the disk to its original position after playing the disk. A disc lock mechanism in a disc changer, wherein the transporter is provided with a positioning member movable in a direction of the disc storage body,
By moving this positioning member to the disk storage body side and fitting it into a fitting portion provided in the disk storage body, the positioning between the disk storage body and the transporter is performed,

[0010] The disk storage body has a lock member which is moved to a position where the disk stored in the storage body is prevented from moving to the side opposite to the transfer machine, and the lock member is biased. An elastic member that moves to the blocked position, and an operating member that moves the lock member to a position outside the blocked position against the bias of the elastic member. When the disk stored in the body tries to move to the opposite side to the transporter, the disk bites in and is prevented from moving by the lock member, and the disk is moved from the opposite side to the transporter in the storage body. When a disk is to be stored in the storage body, the lock member is moved by the disk against the bias of the elastic member, and the disk is allowed to move. And a blocking member movable between a first position for preventing the lock member from being moved against the bias and a second position for allowing the lock member to be moved against the bias. And a second elastic member for urging the blocking member to move to the second position. When the positioning member is fitted to the fitting portion, the blocking member is Characterized by being configured to be moved to the first position in opposition to the first position.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In these figures, the same reference numerals as those in FIGS. 4 to 7 used for the description of the conventional example denote the same parts unless otherwise specified, and a detailed description thereof will be omitted. A slide cam (blocking member) 13 is slidably provided on the disk housing 2, and the cam portion 13 is moved by moving the slide cam 13 (to the first position).
a comes into contact with the driven portion 12b of the lock member 12, and the rotation of the lock member 12 is prevented. This slide cam 13
Is constantly urged toward the transporter 3 by a spring (second elastic member) 15. In this state, since the cam portion 13a and the driven portion 12b of the lock member 12 are not in contact with each other due to the movement of the slide cam 13 (to the second position), the lock member 12 is in a rotatable state. Therefore, similarly to the above-mentioned conventional one, insertion of the disk 1 into the disk housing 2 and removal of the disk 1 by pressing the button 16 can be performed.

During disk playback (PLAY mode),
The positioning member 5 enters the disk housing 2 and pushes the end of the slide cam 13 to the left. Accordingly, the movement of the slide cam 13 against the bias of the spring 15 (to the first position) causes the cam portion 13a and the driven portion 12b of the lock member 12 to come into contact with each other so that the disk is inserted into the disk housing 2. The rotation of the lock member 12 is prevented. Therefore,
During the reproduction of the disc 1, the disc storage body 2
A new disc cannot be inserted into the empty portion where the disc 1 being reproduced is stored. Note that FIG.
2 shows a state at the time of disk search, FIG. 2 shows a state at the time of disk reproduction, and FIG. 3 shows a state at the time of disk removal.

[0013]

As described above, in the disk lock mechanism of the disk changer according to the present invention, the first position where the lock member 12 is prevented from being moved against the urging force of the spring 14 is provided. Slide cam 1 movable to a second position allowing movement against the force
3 and a second elastic member such as a spring 15 for urging the blocking member to move to the second position. The positioning member 5 is fitted to a fitting portion such as the guide recess 2a. In this state, the blocking member is configured to be moved to the first position against the urging.
During playback of a disc, a new disc cannot be inserted into the empty portion of the disc housing 2 in which the disc 1 being reproduced is stored. Is over, disk 1
Is returned to the disk housing 2, so that the disk 1 is not forcibly pushed on the newly inserted disk, so that the disk is not damaged and the disk loading mechanism is not damaged. Also, in order to prevent a new disc from being inserted by mistake, a panel may be provided to cover the entire disc ejection side of the disc housing 2, so that the disc cannot be played when this panel is open. It becomes unnecessary.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a main part showing an embodiment of the present invention.

FIG. 2 is a schematic longitudinal sectional view of a main part in an operation state different from that of FIG. 1, showing one embodiment of the present invention;

FIGS. 1 and 2 show an embodiment of the present invention.
FIG. 7 is a schematic vertical sectional view of a main part in an operation state different from that of FIG.

FIG. 4 is a schematic longitudinal sectional view showing a conventional example.

FIG. 5 is a schematic longitudinal front view showing a conventional example and in an operation state different from that of FIG. 4;

FIG. 6 and FIG. 5 are schematic longitudinal front views showing a conventional example in different operation states.

FIG. 7 is a schematic perspective view showing a conventional example.

FIG. 8 is a diagram showing an operation state of main parts of a conventional example.

[Explanation of symbols]

 Reference Signs List 1 disc 2 disc housing 2a guide recess 2b stopper 3 transporter 4 guide 5 positioning member 6 guide 7 spring 10 plate spring 11 holding plate 12 lock member 12a shaft 12b driven portion 13 slide cam 13a cam portion 14 spring 15 spring 16 take-out button

Claims (1)

(57) [Claims] 1. A disk accommodating body in which a plurality of disks are accommodated in parallel with each other, and a desired disk is moved from the disk accommodating body in a thickness direction of the plurality of disks accommodated in the disk accommodating body. A disk lock mechanism in a disk changer comprising: a transporter that returns the disk to its original position after playing the disk.The transporter is provided with a positioning member that is movable in the direction of the disk storage body. The positioning member is moved to the disk storage body side and fitted to a fitting portion provided in the disk storage body to perform positioning between the disk storage body and the transporter, and the disk storage body A lock member that is moved to a position where the disk stored in the storage body is prevented from moving to the opposite side to the transporter; An elastic member of the locking member urges moves to a position that is the blocking,
An operating member for moving the lock member to a position deviated from the blocked position against the bias of the elastic member, wherein the disk stored in the storage body is on the opposite side to the transporter. When the disk is to be moved, the disk bites into itself and is prevented from moving by the lock member. When the disk is to be stored in the storage body from the side of the storage body opposite to the transporter, the disk is to be stored. The lock member is moved against the bias of the elastic member, and the movement of the disk is allowed. The lock member is prevented from moving against the bias. A blocking member movable to a first position and a second position allowing movement against the bias, and a second elasticity for biasing the blocking member to move the blocking member to the second position. Department And wherein when the positioning member is fitted to the fitting portion, the blocking member is moved to the first position against the urging. Disc lock mechanism in disc changer.