JP2613348B2 - Disk drive device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk drive, and more particularly to a disk loading and unloading mechanism in a disk drive.

[0002]

2. Description of the Related Art Conventionally, as a disk drive device using a disk-shaped recording medium as a recording medium, such as a floppy disk drive device, there has been a demand for miniaturization, improvement in operability corresponding to miniaturization, and cost reduction. In particular, simplification of the structure and improvement of operability have been made particularly in a mechanism for loading and discharging a disk.

[0003] These disk loading and discharging mechanisms include:
An ejection member provided in a state of being urged in a disc ejection direction is provided so that a disc jacket containing a disc-shaped recording medium can be ejected from the loading chamber when the disc is ejected, and a disc jacket (hereinafter abbreviated as a jacket). Is latched at the eject preparation position at the time of loading, and the latch is released when the disc is clamped to the spindle by the center cone. At the time of removing the jacket, the latch is released when the disc is released. In general, the jacket is ejected by an ejecting member.

In such a structure, if the ejecting member exerts an urging force for the ejecting on the jacket before the release of the clamping of the disc by the center cone, undesired effects on the recording and reproduction such as the deformation of the disc are obtained. Will be given.

Therefore, in order to avoid such inconvenience, conventionally, in clamping a disk, instead of releasing the latch of the eject member at the eject preparation position, the eject member is ejected by a locking mechanism interlocking with the clamp operating member. The locking is performed at the preparation position, and when the jacket is taken out, after the clamp is released, the locking of the ejecting member by the locking mechanism is released to perform the ejection.

The control of the timing of each mechanism is the same in the disk clamping operation.

[0007]

However, in the structure of the conventional ejecting mechanism, the locking mechanism releases the locking of the ejecting member at the timing when the locking of the disk by the center cone is completed, particularly in conjunction with the locking operation member. Had to be configured to.

If the timing relationship is to be strictly maintained, the structure of the mechanism is inevitably complicated, and there is a problem that the structure of the interlocking mechanism is extremely complicated and large in size. In addition, if the mechanism becomes complicated, factors such as molding errors and assembly errors of each part increase, so that the manufacturing cost increases and the operability decreases.

Therefore, according to the present invention, control of various mechanisms such as a clamp member, a head, and an eject member is centrally controlled by a slide lever for loading and discharging a disk, and various operation timings are controlled. It is an object of the present invention to make it possible to reliably control and to improve operability.

[0010]

According to the present invention, in order to solve the above-mentioned problems, a clamp supporting member for supporting a clamp member for clamping a disk loaded in a disk loading chamber so as to be movable up and down with respect to the disk. A head arm for supporting a recording / reproducing head for performing recording and reproduction on the disk clamped by the clamp member so as to be able to move up and down with respect to the disk, and a disk arm clamped by the clamp member. A head load arm mounted with a pad for controlling the raising and lowering operation of the head arm and pressing the disk against the disk to stabilize it, and moving against the spring by the loading operation of the disk. Is discharged, the power for discharging is accumulated and the accumulation position At the time of ejection, the eject member ejecting the disc by the accumulated ejection force at the time of ejection, and the disc of the disc at a position opposed to the eject member and adjacent to the clamp support member and the head load arm. First, second, and third engaging portions, which are slidably disposed in the disk loading chamber in the front and rear directions of loading and engagable with the clamp support member, the head load arm, and the eject member, respectively. And a slide lever formed at a predetermined position corresponding to an operation timing based on a slide operation. The slide lever slides in one direction when the disc is loaded, and the clamp support member is lowered by the first engagement portion. And perform the clamping operation of the disk, and the second engagement portion The head load arm is lowered with a predetermined timing delay from the clamping operation to bring the pad and the recording / reproducing head into contact with the disk, and when the disk is ejected, slide in a direction opposite to the one direction. After the head load arm is raised by the second engaging portion to separate the pad and the recording / reproducing head from the disk, the clamp supporting member is raised to release the clamping operation of the disk. A structure is employed in which the latch of the eject member is released by the third engagement portion, and the disc is ejected by the ejection force accumulated in the eject member.

[0011]

According to this, the control of various mechanisms such as the clamp member, the head and the ejecting member relating to the loading / discharging operation of the disk can be intensively controlled by the slide lever for performing the loading / discharging operation of the disk. By simply setting the position of the engagement part with the clamp member, head, and eject member on the lever, it is possible to reliably control all operation timings for loading and unloading of the disc, and greatly reduce the number of parts As a result, the configuration can be simplified, and the operability is improved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the embodiments shown in the drawings.

FIG. 1 et seq. Illustrate one embodiment of the present invention. FIGS. 1 to 4 show a disk clamp and a head loading mechanism. In the figure, reference numeral 1 denotes a base of the apparatus, and a front panel 2 is provided on the front side of the base. A magnetic disk is mounted from the front panel 2 side.

A substrate 4 is fixed on the upper surface of the base 1.

On the other hand, a slide lever 5 is provided above the base 4.
Is arranged.

A button 3 operable from outside the front panel 2 is fixed to an end of the slide lever 5 on the front panel 2 side.

A latch 7 for locking and releasing the slide lever 5 is mounted on the upper surface near the inner end of the slide lever 5 so as to be rotatable about a shaft 8.
The latch 7 is configured so that one end of the latch 7 abuts a projecting portion 10 projecting from the right side edge of the slide lever 5 in FIG. 1 by the force of the torsion coil spring 9 wound around the slide lever 5.

The notch 7a of the latch 7 passes through the elongated hole 5a of the slide lever 5 and engages with the projection 11 projecting from the substrate 4, so that the slide lever 5 can be locked during clamping. It has become.

An arm 12 extends from the distal end of the slide lever 5, and a spring 13 is wound around the arm 12.

The spring 13 is elastically mounted between the tip of the slide lever 5 and the bent portion 14 rising from the substrate 4 to give the slide lever 5 a movement in the direction of arrow A in FIG. ing.

The arm 12 can project in the direction of arrow B in FIG. 1 through an opening formed in the bent portion 14.

Elongated holes 15a and 16a are formed in the front and rear ends of the slide lever 5 along the axial direction, and projections 15 and 16 protruding from the substrate 4 are fitted into the respective elongated holes. Have been.

The projections 15 and 16 are provided on the slide lever 5
Also has a role in determining the height from the substrate 4. Also, projection 1
A spring 13a is stretched between the protrusion 5 and the protrusion protruding from the upper surface in front of the slide lever 5, and biases the slide lever 5 in the direction of arrow A.

As shown in FIG. 2, a roller 6 is provided on the side edge of the slide lever 5 opposite to the latch 7 via an arm 6a.

The rotation axis of the roller 6 is a slide lever 5
And is in contact with the substrate 4.

As shown in FIG. 2, the roller 6 is fitted under an L-shaped bent portion 20 formed at one end of a head load lever 17 which will be described later.

A protruding piece 20a for receiving the roller 6 is provided on the front side of the bent portion 20 in a state where the tip is raised.

The head load lever 17 is formed by a bent portion 17 of a shaft 18 laid horizontally in a state parallel to the axial direction of the slide lever 5 between a pair of projecting pieces 19 rising from the substrate 4.
It is rotatably supported via a.

An L-shaped head load arm 22 is integrally formed at the end of the head load lever 17 opposite to the bent portion 20.

A pad 22a for preventing blurring due to rotation of the magnetic disk is fixed to the lower surface of the tip of the head load arm 22.

A spring 23 is disposed between the lower surface of the bent portion of the L-shaped head load arm 22 and the substrate 4.

The distal end of the head arm 24 is disposed in a state surrounded by the head load arm 22.

The base end of the head arm 24 is held via a leaf spring or the like, and a magnetic head (not shown) is fixed to the lower surface of its free end.

The head load arm 22 has a projecting piece 25 projecting therefrom, and the tip thereof is in contact with the head arm 24.

A bent portion 21 is formed in the vicinity of the bent portion 20 so as to face downward. The bent portion 21 regulates the clockwise rotation limit of the head load lever 17 in FIG. Has the role of a stopper.

An arm 5b is protruded in the vicinity of the front end of the slide lever 5 in a state perpendicular to the slide lever 5, and a roller 27 is provided at the end of the arm 5b to be in contact with the substrate 4. Have been.

A guide frame 33 is fixed on the substrate 4 so as to cover the roller 27 and also cover the arm 5b.

The height of the guide 33 is configured to be substantially equal to the diameter of the roller 27, and restricts the upward movement of the roller 27.

Another roller 26 is provided in the arm 5b.
Is provided.

The roller 26 rolls on a protruding portion 28 provided substantially at the center of the upper surface of a clamp lever 29 described later.

The clamp lever 29 extends parallel to the slide lever 5 with its base end fixed on the substrate 4 via a leaf spring (not shown), and is constantly urged upward by the leaf spring. .

A pair of left and right arms 29a is protruded from the distal end of the clamp lever 29.

Further, a clamp arm 30 is connected to a distal end of the clamp lever 29 via a leaf spring (not shown), and the distal end is also urged upward by the leaf spring.

The distal end of the clamp arm 30 is restricted from moving upward by a bent portion 32 projecting from the substrate 4.

The clamp arm 30 and the clamp lever 29 are arranged such that the protruding piece 30a at the base end of the clamp arm 30 is on the upper surface of the clamp lever 29, and
The arms 29a are combined so as to ride on the upper surface of the clamp arm 30, respectively.

In the state shown in FIG. 1, since the upward movement of the clamp arm 30 with respect to the clamp lever 29 is restricted by the bent portion 32, the connecting portion between the two is in a mountain-folded state.

A center cone 31 is mounted below the clamp arm 30.

Next, the operation of the clamp and head loading mechanism configured as described above will be described.

Before the magnetic disk jacket 100 is inserted and the button 3 is pressed, the apparatus is in the state shown in FIGS.

That is, the slide lever is not pushed, and the arm 12 at the tip does not protrude in the direction of arrow B in the opening of the bent portion 14.

The magnetic head is not in contact with the magnetic disk in the magnetic disk jacket 100.

When the button 3 is pressed in this state, the slide lever 5 is moved in the direction of arrow B in FIG. 1 against the springs 13 and 13a, and the roller 26 provided on the arm 5b 28, the tip of the clamp lever 29 descends.

Then, when the tip of the clamp lever 29 is lowered from the state where the clamp lever 29 and the clamp arm 30 are bent to a state where they are substantially in the same plane, the clamp lever 29 and the clamp arm 30 are integrated thereafter. Then, the center cone 31 centers the magnetic disk, and clamps the magnetic disk with a spindle (not shown).

On the other hand, the roller 6 comes into contact with the lower surface of the protruding piece 20a, but has not yet been fitted between the bent portion 20 and the substrate 4, and the head load lever 17 has not yet been rotated. , The head load arm 22 is not lowered.

When the button 3 is further pressed in this state, the roller 26 presses the protruding portion 28, the clamp lever 29 is further lowered, and the magnetic disk is completely clamped.

At the same time, since the roller 6 moves from the lower side of the protruding piece 20a to the lower side of the bent portion 20, the head load lever 17 rotates counterclockwise about the shaft 18 as shown by an arrow C in FIG. It is turned.

As a result, the head load arm 22 descends while compressing the spring 23, and the head arm 24 is pushed downward via the protruding piece 25, as shown in FIG. 4, and the magnetic head comes into contact with the magnetic disk.

On the other hand, when the button 3 is completely pressed and the movement of the slide lever 5 is completed, the projections 15 and 16 are
It reaches near the end on the near side of 5a, 16a.

At this time, the slide lever 5 is locked in this state since the projection 7 of the latch 7 is fitted around the tip of the latch 7 so as to fit into the notch 7a.

On the other hand, when the button 3 is pressed again during ejection of the magnetic disk, the slide lever 5 is slightly pressed.
At this time, the latch 7 further rotates clockwise, and the tapered portion 7b rides on the protrusion 11, so that the protrusion 11 is guided to the lower side of the latch, disengages from the notch 7a, the lock is released, and the button 3 is released. When released, the slide lever 5 moves to the front side by the force of the spring 13 and follows the reverse operation to the above-described operation, and the state shown in FIG. 1 is obtained.

The magnetic disk is ejected from the apparatus by a mechanism described later.

The head load arm 22 is provided with a pad 22a, and the pad 22a presses the magnetic disk to prevent blurring during rotation of the magnetic disk.

By the way, in the above-described configuration, the connection structure of the combination of the clamp lever 29 and the clamp arm 30 that can be bent (neck broken) greatly contributes to the reduction in thickness of the entire apparatus.

That is, when the clamp lever 29 and the clamp arm 30 are formed as one continuous lever or arm, the tip of the lever becomes high when the clamp is not clamped. If it is not clamped, the tip of the clamp arm 30 is regulated by the bent portion 32, the neck is bent with respect to the clamp lever 29, and the cross-section becomes a U-shape as a whole. The height is reduced, which greatly contributes to the thinning of the entire device.

The details of this mechanism have been disclosed by the present applicant as a “recording medium clamping device”.

Next, an embodiment of the eject mechanism will be described with reference to FIGS.

In the figure, reference numeral 34 denotes an ejector lever formed in a triangular shape with a base, and a shaft 3 near the front end in the jacket insertion direction of the jacket loading chamber of the apparatus.
5, one end of which is supported so as to be rotatable and capable of swinging up and down.

A torsion coil spring 38 is wound around the shaft 35, one end of which is locked by an eject lever 34, and the other end of which is locked by a spring hook 39 provided at the tip of the substrate 4. As a result, the eject lever 34 has a rotating behavior in a counterclockwise direction in the drawing and is urged downward.

The eject lever 34 has an arm 34a with a tip inclined upward and a part thereof, and an eject pin 36 and a part of the slide lever 5 which can be engaged with the tip of the jacket 100 on its lower surface. Pin 37 engageable with
Having.

Reference numeral 40 denotes a latch member.
The eject lever 34 is formed to be bent upward from the substrate 4 in the vicinity of the arm 34a.

The latch member 40 is rotated clockwise through an eject pin 36 as the jacket 100 is inserted to a predetermined position in the loading chamber, and the latch member 40 is moved to a predetermined position for ejection preparation. When reaching, the arm 34a is locked, and the eject lever 34 has a role of latching at this position against the force of the torsion coil spring 38.

On the other hand, a part 43 of the tip of the slide lever 5
5, can be engaged with the pin 37 when the jacket shown in FIG. 5 is not loaded with the eject lever 34, and when the jacket is completely inserted as shown in FIG.
A release portion 41 which can be engaged with the inclined surface of the arm 34a to release the latch by the latch member 40 is formed.

After the latch of the eject lever 34 is released by the latch member 40, a locking portion 42 engageable with the pin 37 for locking the eject lever 34 is provided instead of the latch member 40. I have.

Next, the operation of the eject mechanism configured as described above will be described.

First, before the jacket is mounted, the eject lever 34 is turned counterclockwise while riding on the latch member 40, and the eject pin 36 is engaged with the end 44 of the substrate 4.

In this state, the pin 37 is
Is in a state in which it can be engaged with the release portion 41.

Therefore, in this state, even if the slide lever 5 is pushed in the direction of arrow B, the movement is prevented by the pin 37, and the clamping operation and the head loading operation are not performed.

Next, the jacket 100 is inserted into the loading chamber from the front panel 2 side. When the jacket 100 reaches the innermost position, the eject lever 34 is moved by the pin 36 as shown in FIG. The torsion coil spring 38 is pushed by the edge of the torsion coil spring 38 and is rotated clockwise against the force of the torsion coil spring 38.

As a result, since the arm 34a of the eject lever 34 is disengaged from the upper end of the latch member 40, the arm 34a falls downward due to the vertical elastic force of the torsion coil spring 38, and the arm 34a is moved to the latch member 40 as shown in FIG.
Is engaged with the locking portion 50, which is the left side surface.

Therefore, if the pushing of the jacket 100 is stopped at this time, the eject lever 34 is latched by the latch member 40 in the ejection ready state.

Subsequently, when the slide lever 5 is pushed in the direction of the arrow B, the disk clamp and the head loading described above are performed sequentially in accordance with the movement.

In this process, at the initial stage, the locking portion 42 of the slide lever 5 comes close to and opposes the pin 37 of the eject lever 34, and the release portion 41 makes contact with the inclined surface of the arm 34 a of the eject lever 34. The ejection lever 34 is pushed upward against the pressing force of the torsion coil spring 36.

As a result, as shown in FIG.
0, the latch 34 of the eject lever 34 is released, and the arm 34a of the eject lever 34 partially rides on the latch member 40, and the locking portion 42 of the slide lever 5 engages with the pin 37 instead. Is locked in the ejection preparation position.

In this state, the slide lever 5 is latched by the engagement between the latch 7 and the projection 11 as shown in FIG.

Recording and reproduction are performed in this state.

On the other hand, when the slide lever 5 is pushed again in the direction of arrow B via the button to remove the jacket 100, the engagement between the latch 7 and the projection 11 is released, and the slide lever 5 is disengaged by the force of the springs 13 and 13a. The head is moved in the direction of arrow A, and the head load and the release of the disk clamp are sequentially performed.

During this operation, the locking portion 42 locks the pin 37 of the eject lever 34.

After the disk clamp is released, the locking portion 42 is disengaged from the pin 37. As a result, the eject lever 34 is moved counterclockwise while the arm 34a rides on the latch member 40 by the force of the torsion coil spring 38. At this time, the tip of the jacket 100 is pushed by the eject pin 36, and the jacket 100 is ejected from the loading chamber to be in the state of FIG.

The adjustment for determining the timing so that the jacket is ejected after the disk clamp is released is performed by adjusting the pin 37 of the locking portion 42 of the slide lever 5.
Since the adjustment of the engagement margin (stroke) with respect to suffices, the design becomes extremely easy, and the degree of freedom in designing other related mechanisms such as a clamp mechanism and a head load mechanism is increased.

[0090]

As described above, the disk drive of the present invention controls various mechanisms such as the clamp member, the head, and the eject member related to the loading / discharging operation of the disk by performing the loading / discharging operation of the disk. A plurality of engaging portions formed on the slide lever and the slide operation of the slide lever can be intensively controlled, and are respectively associated with a clamp member, a head, and an eject member on a common member called the slide lever. Just set the position of each engaging part to fit,
All the operation timings related to the discharge can be reliably controlled, and the number of parts is greatly reduced, the configuration can be simplified, and the operability is improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a magnetic disk drive before a slide lever operation.

FIG. 2 is a perspective view of a head loading mechanism.

FIG. 3 is a plan view of the magnetic disk device after a slide lever operation.

FIG. 4 is a perspective view of the head loading mechanism after head loading.

FIG. 5 is a plan view of the ejection mechanism before the jacket is mounted.

FIG. 6 is a plan view of the ejection mechanism after the jacket is mounted.

FIG. 7 is a perspective view of an ejection mechanism.

[Explanation of symbols]

 5 Slide lever 13, 13a Spring 34 Eject lever 34a Arm 35 Shaft 36 Eject pin 37 Pin 38 Torsion coil spring 40 Latch member 42 Locking part

Claims (1)

(57) [Claims] And a recording / reproducing unit configured to perform a recording / reproducing operation on the disk clamped by the clamp member. A head arm for supporting a recording / reproducing head for lifting and lowering with respect to the disk; and a head arm for lifting and lowering with respect to the disk clamped by the clamp member. A head load arm provided with a pad for pressing against and stabilizing the disk, and a discharge force for ejecting and accumulating the discharging force for ejection by being moved against a spring by the loading operation of the disk. Is latched to
An ejecting member for ejecting the disc by the accumulated ejection force, and loading of the disc into the disc loading chamber at a position facing the ejecting member and adjacent to the clamp support member and the head load arm. Operation timing based on the sliding operation, wherein first, second, and third engagement portions that are slidably disposed in the front and rear directions and are respectively engageable with the clamp support member, the head load arm, and the eject member. The slide lever is slid in one direction when the disc is loaded, and the first engaging portion lowers the clamp support member to clamp the disc. Operation, and a predetermined time is given to the clamping operation by the second engagement portion. The head load arm is lowered with a delay to bring the pad and the recording / reproducing head into contact with the disk. When the disk is ejected, the head and the recording / reproducing head slide in a direction opposite to the one direction. After raising the head load arm to separate the pad and the recording / reproducing head from the disk, the clamp supporting member is raised to release the clamping operation of the disk, and then the third engagement is performed. A disk drive device configured to release a latch of the eject member by a unit and perform an ejection operation of the disk by an ejection force accumulated in the eject member.