JPH08147845A - Shutter opening/closing mechanism of disk cartridge - Google Patents

Abstract

PURPOSE: To make a disk cartridge easy to be loaded and to hold a shutter in a closed state until a lid is closed. CONSTITUTION: A shutter opening/closing member 2 is integrated with a connection member 4 through a shaft penetrating a horizontal guide hole of a supporting plate 1, and is slidably supported by the supporting plate 1. A projection part 2a engaged with a hole for opening/closing the shutter of the disk cartridge 12 is provided on a tip of a leaf spring provided on the shutter opening/closing member 2. A lock release pawl 3 is slidably supported by the supporting plate 1 together with the connection member 5 similarly. A tensile coil spring 6 is hung between the connection members 4 and 5, and the connection members 4 and 5 are energized so as to come close the each other. A slide member 8 is slidably supported by the supporting plate 1 through a guide groove, and is connected with the cap 10a of a case main body 10 through a link 9. Thus, when the cap 10a is opened/closed, the slide member 8 is reciprocally moved along the guide groove, and drives the shutter opening/closing member 2 and the lock release pawl 3 successively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus for reproducing a disk in a disk cartridge whose opening is opened and closed by a shutter, and more particularly to a shutter opening / closing mechanism for the disk cartridge.

[0002]

2. Description of the Related Art Conventionally, a reproducing apparatus for reproducing a disc such as a magneto-optical disc housed in a disc cartridge whose opening is opened and closed by a shutter has a holder 13 for holding the disc cartridge as shown in FIG. When the disc cartridge is stored in the holder 13, the shutter opening / closing member 2 and the unlocking claw 3 are provided.
The disk cartridge shutter was opened by.

In such a reproducing apparatus, since the shutter is opened only by inserting the disc cartridge into the holder, there is a problem that dust is mixed into the disc cartridge unless the lid is closed in that state.

To solve this problem, Japanese Unexamined Patent Publication No. 6-1
In the recording / reproducing apparatus proposed in Japanese Patent No. 50506, the shutter is not opened when the disc cartridge is inserted into the holder, and the shutter is opened when the holder is housed in the case body or after being housed in the case body. Is configured.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The recording / reproducing apparatus proposed in Japanese Patent No. 506 has a holder for holding a disk cartridge, and since this holder has a structure for inserting / removing from the case body, the moving range of the holder and the lid is wide and the recording / reproducing apparatus can be made compact. There was a problem that it could not be configured. Further, since the disc cartridge is inserted into the holder toward the narrow insertion opening, there is a problem that the operability of mounting the disc cartridge is poor.

The present invention has been made in view of the above points, and it is an object of the present invention to easily mount a disk cartridge and to keep the shutter closed until the lid is closed. It is to provide a shutter opening / closing mechanism for a disk cartridge.

[0007]

A shutter opening / closing mechanism for a disk cartridge according to the present invention comprises a movable member that interlocks with a lid of a reproducing apparatus, a lock releasing claw driven by a spring,
The shutter is provided with a shutter opening / closing member which is driven by a spring into the recess of the shutter and is driven by a spring. A disk cartridge is loaded at a predetermined position in the case body of the reproducing apparatus, and the lid is moved in the closing direction. The shutter of the disk cartridge is unlocked, and the shutter is opened by further moving the lid in the closing direction.

Further, in the shutter opening / closing mechanism of the disk cartridge, the movable member is slidably supported and connected to the lid by a link. It is driven by the elastic force of the spring, and then the movable member drives the shutter opening / closing member against the elastic force of the spring.

Further, in the shutter opening / closing mechanism of each disk cartridge, the shutter opening / closing member is elastically deformed so as not to interfere with loading of the disk cartridge, and the unlocking pawl is retracted to a position where it does not interfere with the loading of the disk cartridge. Is what you are doing.

[0010]

Since the shutter opening / closing mechanism of the disc cartridge of the present invention is opened by the movable member which is interlocked with the lid of the reproducing apparatus, the shutter can be opened only when the lid is closed. Then, since the movable members respectively drive the lock release claws and the shutter opening / closing member that are biased by springs, the lock release claws are driven when the shutter opening / closing member is stopped, and the shutter open / close operation is performed when the lock release claw is stopped. The member can be driven.

Therefore, with the unlocking claw retracted to a position where it does not interfere with the disc cartridge, the disc cartridge can be loaded at a predetermined position in the case body and at the same time the shutter opening / closing member can be engaged with the recess of the shutter. At this time, the shutter opening / closing member is elastically deformed and does not prevent the loading of the disc cartridge. Since the disc cartridge is directly mounted in the case body in this manner, the disc cartridge can be mounted in a wide range and is easily mounted.

Further, since there is no need for a holder for holding the disc cartridge and putting it in and out from the case body, there is no moving member occupying a large space, so that the apparatus can be designed compact. Further, the holder requires high positional accuracy, and the manufacturing cost can be reduced by eliminating the holder.

[0013]

Embodiments of the present invention will be described with reference to the drawings. First, a disk cartridge used in the embodiment of the present invention will be described with reference to FIG. FIG. 5A is a perspective view of the closed state of the shutter 12d of the disc cartridge 12 as seen from the front side, and FIG. 5B is the shutter 1
It is the perspective view which looked at the state where 2d was opened from the surface side. Further, FIG. 5C is a perspective view of the state in which the shutter 12d is opened as viewed from the back surface side.

The shutter 12d has a U shape and is slidably provided on the disk cartridge body. The shutter 12d is the disk cartridge 12
Open and close the opening windows 12b and 12c on the front and back sides. The shutter 12d is provided with an opening / closing hole 12f. When the shutter 12d is closed, it is locked by a shutter lock member which is an elastic member provided in the disk cartridge.

When the shutter 12d is opened, the magneto-optical disk 12e in the disk cartridge opens the opening window 12.
Being exposed from b and 12c, the optical pickup and the magnetic head of the reproducing section can be brought close to each other. Reference numeral 12a shown in the figure is a positioning reference hole for positioning the disc cartridge 12 with respect to the reproducing portion.

Next, a first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, reference numeral 1 denotes a support plate that supports the shutter opening / closing mechanism, and is arranged inside the case body 10. The shutter opening / closing member 2 is integrated with the connecting member 4 via a shaft that passes through the horizontal guide hole of the support plate 1,
It is slidably supported by the support plate 1. A convex portion 2a that engages with the shutter opening / closing hole 12f is provided at the tip of the leaf spring provided on the shutter opening / closing member 2.

The unlocking claw 3 is connected to the connecting member 5 via a retaining ring 7 and a shaft that passes through a horizontal guide hole of the support plate 1, and is slidably supported by the support plate 1. Connecting member 4
A tension coil spring 6 is hooked between the connecting members 4 and 5, and the connecting members 4 and 5 are biased toward each other.

The sliding member 8 is slidably supported by the support plate 1 via a guide groove, and the case body 10 is connected via a link 9.
Is connected to the lid 10a. Therefore, when the lid 10a is opened and closed, it reciprocates along the guide groove.

FIG. 2A shows the relationship between the insertion direction of the disk cartridge 12 and the longitudinal direction of the leaf spring 12b of the shutter opening / closing member 2. With this arrangement, the leaf spring 12b is deformed when the disc cartridge 12 is inserted, and the leaf spring 12b returns to the original state when the disc cartridge 12 is mounted so that the convex portion 2a becomes a hole 12f for opening and closing the shutter. The shutter opening / closing member 2 and the shutter 12d are engaged with each other. FIG. 2B shows a modification of this embodiment. By changing the direction of the leaf spring 12b in this way, the mounting direction of the disc cartridge 12 can be changed.

Next, the operation of the above embodiment will be described with reference to FIG. In FIG. 3, the leftward movement of the sliding member 8 corresponds to the rightward movement in FIG. FIG. 3A shows a state in which the lid 10a is opened, and the moving member 8 is moving rightward. The moving member 8 is a tension coil spring 6
The connecting member 5 is moved to the right against the elasticity of
The lock release claw 3 is at a position that does not hinder the mounting of the disc cartridge 12.

When the disc cartridge 12 is mounted in this state, the convex portion 2a of the shutter opening / closing member 2 engages with the hole 12f of the shutter 12d. Next, when the lid 10a is closed, the sliding member 8 moves to the left and the tension coil spring 6
The connecting member 5 pressed against the sliding member 8 also moves to the left due to the elasticity. The lock release claw 3 that moves leftward together with the connecting member 5 deforms the shutter lock member 12g to release the lock of the shutter 12d.

FIG. 3B shows a state where the shutter 12d is unlocked, and at this time, the connecting member 5 is moved to the end of the moving stroke. When the sliding member 8 further moves to the left, the sliding member 8 contacts the connecting member 4,
It will move it to the left. The shutter opening / closing member 2 that moves to the left together with the connecting member 4 opens the shutter 12d. FIG. 3C shows a state in which the shutter 12d is opened.

At the final stage of the closing operation of the lid 10a, the support portion of the disc cartridge 12 and the shutter opening / closing mechanism are lowered by a link mechanism (not shown), and the metal plate provided at the center of the magneto-optical disc serves as the reproducing portion. It becomes possible to rotate the magneto-optical disk by being attracted to the turntable,
The magneto-optical disk is played.

FIG. 4 shows a second embodiment of the present invention. In this embodiment, the lid 11a is attached to the case body 11 so as to slide. The link 9 is connected to the lid 11a via play. Other configurations are first
This is the same as the embodiment. The present invention can also be applied to a reproducing apparatus having a slide lid as described above.

Although the embodiment describes the reproducing apparatus for reproducing the magneto-optical disk, the present invention can be applied to the recording / reproducing apparatus for recording / reproducing the magneto-optical disk.

[0026]

As described above, according to the shutter opening / closing mechanism of the disc cartridge of the present invention, since the shutter is opened by the movable member interlocking with the lid of the reproducing apparatus, the shutter is opened only when the lid is closed. It can be kept in a closed state, and the mixture of dust is prevented.

Further, since the disk cartridge can be loaded at a predetermined position in the case main body with the unlocking claw retracted to a position where it does not interfere with the disk cartridge, the shutter opening / closing member can be engaged with the recess of the shutter at the same time. The cartridge is directly installed in the case body, and the disk cartridge can be installed from a wide range. Therefore, it is easy to mount the disc cartridge. Further, since the unlocking claw and the shutter opening / closing member are driven in only one direction, the mechanism is simple and the operation is surely performed.

[Brief description of drawings]

FIG. 1 is a partially exploded perspective view showing a shutter opening / closing mechanism of a disk cartridge according to a first embodiment of the present invention.

FIG. 2A is a partial side view showing an operation of a shutter opening / closing mechanism of the disc cartridge, and FIG. 2B is a partial side view showing an operation of a modified example of the shutter opening / closing mechanism of the disc cartridge. .

FIG. 3 is a schematic configuration diagram showing an operation of a shutter opening / closing mechanism of the disc cartridge.

FIG. 4 is a partially exploded perspective view showing a shutter opening / closing mechanism of a disk cartridge according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing a disk cartridge used in an embodiment of the present invention.

FIG. 6 is a perspective view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Support plate 2 Shutter opening / closing member, 2a convex part, 2b Leaf spring 3 Lock release claw 4 Connecting member 5 Connecting member 6 Tension coil spring 7 Retaining ring 8 Sliding member 9 Link 10 Case body, 10a lid 11 Case body, 11a lid 12 Disk cartridge, 12a positioning reference hole, 12b, 12c opening window, 12d shutter, 1
2e Magneto-optical disc, 12f hole, 12g Shirt lock member 13 Holder

Claims (3)

[Claims] 1. A reproducing member comprising: a movable member that interlocks with a lid of a reproducing device; a lock releasing claw that is driven by a spring; and a shutter opening and closing member that is driven by a resilient member into a recess of the shutter and is driven by the spring. The disk cartridge is loaded at a predetermined position in the case body of the device, the lock of the shutter of the disk cartridge is first unlocked by moving the lid in the closing direction, and the shutter is opened by further moving the lid in the closing direction. A shutter opening / closing mechanism for a disk cartridge, which is characterized in that 2. The movable member is slidably supported and connected to the lid by a link, and when the movable member retracts with respect to the lock releasing pawl, the lock releasing pawl is driven by the elastic force of a spring. 2. The shutter opening / closing mechanism for a disk cartridge according to claim 1, wherein the movable member drives the shutter opening / closing member against the elastic force of a spring. 3. The shutter opening / closing member is elastically deformed so as not to interfere with loading of the disc cartridge, and the lock release claw is retracted to a position where it does not interfere with the loading of the disc cartridge.
Shutter opening / closing mechanism for disk cartridges.