JPH0316124Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an eject mechanism of a recording/reproducing apparatus provided for a disk cartridge such as a magnetic disk cartridge.

[Background of the idea]

Various types of disk cartridge recording and reproducing devices equipped with this type of eject mechanism have been proposed in the past, but these devices generally record and reproduce data from, for example, a magnetic disk cartridge housed in the recording and reproducing device. It is difficult to determine the timing for locking the device in the loading position so that it can be operated, and therefore a complicated structure is required. Furthermore, if the locking is insufficient, there is a problem in that the magnetic disk cartridge is returned to the insertion slot formed in the main body of the recording/reproducing apparatus. Also, during the eject operation, the eject mechanism operates in conjunction with the release of the pad that was pressing the magnetic disk in the magnetic disk cartridge toward the magnetic head, and the eject mechanism moves the magnetic disk cartridge toward the insertion slot. Although it is ejected, the pressure release operation of the pad and the operation of the eject mechanism are performed independently, so
There was a problem where it took a long time to eject the magnetic disk cartridge.

[Purpose of invention]

The present invention was devised in view of the actual state of the prior art, and its purpose is to be able to timely and reliably lock a disk cartridge housed in a recording/reproducing device in a loading position, and to It is an object of the present invention to provide an eject mechanism for a recording/reproducing device that can perform an eject operation simultaneously with an operation for releasing pressure on a pad.

[Summary of the idea]

In order to achieve this objective, the present invention includes a mounting plate on which a shaft extending in the direction of inserting and removing the disk cartridge is installed and has a locking part, and a mounting plate that is rotatably and reciprocably fitted to the shaft. slider and
A support member that carries a pad that can be moved toward and away from the disk cartridge, and an eject lever that is movable in conjunction with the support member, and the slider is engaged with the tip of the disk cartridge. a first engaging portion that can be engaged with the eject lever in a loaded state;
A third engaging portion is provided that can engage with the locking portion in a standby state before loading, and further urges the slider toward the insertion opening of the disk cartridge and engages the third engaging portion. The structure includes an elastic body that biases the part in a direction in which the locking part engages with the locking part.

[Example of idea]

Hereinafter, the eject mechanism of the recording/reproducing apparatus of the present invention will be explained based on the drawings.

1 to 6 are explanatory diagrams showing an embodiment of the present invention. FIG. 1 is a plan view of the main part showing a state in the middle of inserting a magnetic disk cartridge into a recording/reproducing device, and FIG. FIG. 3 is a side view of the slider provided in this embodiment; FIG. 4 is a side view of the main part corresponding to the state shown in FIG. 1; FIG. 5 is a side view of the main part corresponding to the state shown in FIG. 4, and FIG. 6 is a side view of the main part showing the state when the magnetic disk cartridge is loaded.

In these figures, reference numeral 1 denotes a disk cartridge, for example a magnetic disk cartridge, which consists of a rigid case and a magnetic disk etc. housed within the case. Reference numeral 2 denotes a mounting plate, which is fixed to, for example, the main body of a recording/reproducing apparatus. The mounting plate 2 has vertical walls 2a and 2b, and has a locking portion, such as a hole 2d, in a flat portion 2c. 3
is an eject lever attached to the vertical wall 2a of the mounting plate 2, which has a protrusion 3a and is rotatable about a fulcrum 3b. 4 is lowered in a direction perpendicular to the plane of FIG. 1 in conjunction with a chucking mechanism (not shown) that grips the magnetic disk cartridge 1, for example.
Alternatively, a rising stopper restricts the rotation of the eject lever 3 and also restricts the lowering of the support member 6 of the pad 5, which is disposed opposite to the magnetic head (not shown). Note that a spring 7 biases the eject lever 3 in the direction of engagement with the stopper 4, that is, in the direction of arrow 8 in FIG.

Further, 9 is a slider arranged on the mounting plate 2, and has a hole 9a into which a shaft 10 whose both ends are supported by the vertical walls 2a and 2b of the mounting plate 2 is inserted.
As illustrated in FIG. 3, there is a first engaging portion, for example, a stepped portion 9b, which can be engaged with the tip end 1a of the magnetic disk cartridge 1, and a protrusion 3 of the eject lever 3.
A second engaging portion that can be engaged with, for example, a recess 9c
and an arm 9e equipped with a third engaging portion, for example, a claw portion 9d at the end, which can be engaged with the hole 2d of the mounting plate 2;
It is provided with a protruding portion 9f, and is movable in the insertion/removal direction of the magnetic disk cartridge 1, that is, in the direction of the arrow 11 in FIG.

Reference numeral 12 is an elastic body, such as a spring, which has one end engaged with the protrusion 9f of the slider 9 and the other end engaged with the flat surface 2c of the mounting plate 2, and is used to move the slider 9 toward the insertion opening of the magnetic disk cartridge 1. That is, the first
Force it in the direction of arrow 13 in the figure.

The operation of an embodiment configured as described above is as follows.

That is, when performing a recording/reproducing operation, the magnetic disk cartridge 1 is first inserted from an insertion opening (not shown) of the recording/reproducing apparatus, but its tip 1a engages with the slider 9 as shown in FIGS. 1 and 2. In the state where the slider 9 is not connected to the spring 12
The ejector lever 3 is urged in the direction of the arrow 13 in FIG.
is held so that its right end is positioned upward. Note that the support member 6 of the pad 5 is also held upward by the stopper 4.

From the above state, when the magnetic disk cartridge 1 is further pushed in the direction of the arrow 14 in FIG. 12
The magnetic disk cartridge 1 moves in the direction of arrow 14 against the force of. At this time, a rotational force is applied to the slider 9 in the direction of the arrow 15 in FIG. 2 about the shaft 10 by the force of the spring 12. This rotational force is generated by the claw portion 9 of the slider 9, which will be described later.
d and the hole 2d of the mounting plate 2.

When the claw portion 9d of the slider 9 and the hole 2d of the mounting plate 2 reach a matching position, the claw portion 9d is moved by the rotational force of the spring 12, as shown in FIGS. 4 and 5. The first lock, that is, a temporary lock, is performed by fitting into the hole 2d. As a result, the movement of the slider 9 and the magnetic disk cartridge 1 is stopped, and the magnetic disk cartridge 1 is placed in a standby state.

Next, a magnetic disk cartridge 1 (not shown) is installed.
The chuck mechanism is activated, and in conjunction with this, the stopper 4 is lowered in a direction perpendicular to the plane of FIG. This causes the eject lever 3 to release the spring 7.
It rotates in the direction of arrow 16 in Fig. 5 due to the force of
As shown in the figure, the protrusion 3a fits into the recess 9c of the slider 9, and the second lock, that is, the main lock, is performed, and at the same time, the slider 9 is moved in the direction of the arrow 15 in FIG. 2, which is applied by the spring 12. The slider 9 moves against the rotational force of the eject lever 3.
Rotates in the direction of arrow 16 in Figure 5 by the rotational force of
The temporary lock between the claw portion 9d and the hole 2d is released. Further, by lowering the stopper 4 described above, the support member 6
is lowered, and the pad 5 faces a predetermined surface of the magnetic disk of the magnetic disk cartridge 1. That is, the main locking operation of the slider 9 by the eject lever 3 and the lowering operation of the pad 5 are performed by the stopper 4.
This is done simultaneously by the lowering of the magnetic disk, thereby making the magnetic disk ready for recording and reproducing. Note that a description of the recording/reproducing operation will be omitted.

Further, during the eject operation, the stopper 4 is raised as the chucking mechanism (not shown) is released, and the eject lever 3 is thereby moved by the spring 7.
At the same time, the support member 6 rises and the pad 5 separates from the magnetic disk surface. Then, by rotating the eject lever 3 in the direction of the arrow 17, the lock between the protrusion 3a and the recess 9c of the slider 9 is released.
The force of the spring 12 causes the slider 9 and the magnetic disk cartridge 1 to be ejected toward the insertion slot.
That is, the action of separating the pad 5 from the magnetic disk surface and the unlocking action of the slider 9 are performed simultaneously by the raising of the stopper 4, and the magnetic disk cartridge 1 is ejected instantly.

In the above embodiment, the hole 2d was provided as the locking portion formed on the mounting plate 2, and the claw portion 9d was provided as the first engaging portion formed on the slider 9, but the present invention does not have this feature. For example, hole 2d
Instead, a protrusion having a tapered surface is provided where the part near the insertion opening of the magnetic disk cartridge 1 is low and the part far away is high, and the claw part 9d is formed with a tapered surface having a shape opposite to the above-mentioned tapered surface. It can also be configured.

Furthermore, in the above embodiment, the recess 9c was provided as the second engaging portion formed in the slider 9;
The present invention is not limited to this, and for example, a protrusion that can be engaged with the protrusion 3a of the eject lever 3 may be provided in place of the recess 9c.

Further, in the above embodiment, the stepped portion 9b is provided as the third engaging portion formed on the slider 9, but the present invention is not limited to this, and for example, the upper surface of the slider 9 is basically As a flat surface, the tip end 1a of the magnetic disk cartridge 1 is placed on the flat surface.
It is also possible to provide a projection that can be engaged with in place of the stepped portion 9b.

[Effect of idea]

As described above, the ejection mechanism of the recording/reproducing apparatus of the present invention is provided with a first engaging portion that can engage with a disk cartridge on the slider, and when the disk cartridge is inserted, the slider is integrally moved. The slider is configured to be movable, and the slider is provided with a second engaging portion that can be engaged with the eject lever, and a third engaging portion that can be engaged with a locking portion provided on the mounting plate. After temporary locking by engagement between the locking part and the third engaging part, the final locking and temporary locking between the eject lever and the second engaging part are released, In addition, since the main locking by the eject lever and the lowering operation of the pad are performed at the same time, it is possible to lock the disk cartridge housed in the recording/reproducing device in the loading position in a timely manner, and moreover, the first This operation can be realized with a simple structure that includes a simple slider having a second and third engaging portions, a locking portion of a mounting plate, an eject lever, and the like.

In addition, by smoothly transitioning from temporary lock to permanent lock, the disk cartridge can be reliably locked in the loading position. Excellent locking performance can be obtained without causing any return.

Further, the eject operation, that is, the disengagement operation between the eject lever and the second engaging portion can be performed simultaneously with the pad pressing release operation,
Therefore, the time required for ejecting the disk cartridge can be shortened compared to the conventional method.

[Brief explanation of drawings]

1 to 6 are explanatory diagrams showing one embodiment of the eject mechanism of the recording/reproducing apparatus of the present invention, and FIG. 1 is a plan view of the main part showing a state in the middle of inserting a magnetic disk cartridge into the recording/reproducing apparatus. Figure 2 is the first
3 is a side view of the slider provided in this embodiment; FIG. 4 is a plan view of the main part showing the state when the magnetic disk cartridge is temporarily held; FIG. This figure is a side view of the main part corresponding to the state shown in FIG. 4, and FIG. 6 is a side view of the main part showing the state when the magnetic disk cartridge is loaded. 1... Magnetic disk cartridge, 1a... Tip, 2... Mounting plate, 2a, 2b... Vertical wall, 2c
... Flat part, 2d ... Hole (locking part), 3 ... Eject lever, 3a ... Protrusion, 3b ... Fulcrum, 7 ...
...Spring, 9...Slider, 9a...Hole, 9b...
Step part (first engaging part), 9c... recessed part (second engaging part), 9d... claw part (third engaging part), 9e...
Arm, 9f...protrusion, 10...shaft, 12...
Spring (elastic body).

Claims (1)

[Claims for Utility Model Registration] (1) A mounting plate on which a shaft extending in the insertion/removal direction of the disk cartridge is installed and has a locking portion, and a slider fitted to the shaft in a rotatable and reciprocating manner. and a support member carrying a pad that can be moved toward and away from the disk cartridge, and an eject lever that is movable in conjunction with the support member, and the slider has a distal end portion of the disk cartridge. engageable first
an engaging portion, a second engaging portion that can be engaged with the eject lever in a loaded state, and a third engaging portion that can be engaged with the locking portion in a standby state before loading. and further includes an elastic body that biases the slider in the direction of the insertion opening of the disk cartridge and biases the third engaging part in the direction of engaging with the locking part. Eject mechanism for recording/playback equipment. (2) The first engaging part consists of a stepped part, the second engaging part consists of a recess into which the protrusion formed on the eject lever can fit, and the third engaging part consists of a claw part. An ejection mechanism for a recording and reproducing apparatus according to claim (1), wherein the locking portion comprises a hole into which the claw portion can be inserted.