JPH061587B2 - Eject device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic disk device, and more particularly to an eject device having an improved eject mechanism for a magnetic disk jacket.

[Prior Art] For example, a magnetic disk device using a magnetic disk as a recording medium has conventionally been provided with an eject mechanism for ejecting a magnetic disk jacket from a loading chamber of the device.

This ejecting device has an eject member that is biased so that the magnetic disk jacket can be ejected from the loading chamber, and is latched at the eject preparation position when the magnetic disk jacket (hereinafter referred to as the jacket) is loaded. Latch by a member, then release the latch when the center cone is clamped to the spindle of the magnetic disk, and the latch is released when the clamp is released for taking out the jacket. The eject member ejects the jacket. Things are common.

In such a structure, if the eject member exerts an urging force for ejecting on the jacket before the end of the unclamping of the magnetic disk by the center cone, the magnetic disk may be deformed and the recording and reproduction may be unfavorably affected. Will be lost.

Therefore, in order to avoid such an inconvenience, when clamping the magnetic disk in the related art, instead of releasing the latch by the latch member at the eject preparation position of the eject member, the eject member is provided with a locking mechanism that interlocks with the clamp operating member. Lock at the eject preparation position,
When the jacket is taken out, after the clamp is released, the locking of the eject member by the locking mechanism is released so that the eject is performed.

[Problems to be Solved by the Invention] However, particularly in the configuration of the conventional eject mechanism, the locking mechanism interlocks with the clamp operating member, and the eject member of the eject member is released at the timing when the unclamping of the magnetic disk by the center cone is completed. Had to be configured to unlock.

If such a timing relationship is to be strictly maintained, the structure is inevitably complicated, and if the structure of the interlocking mechanism is also taken into consideration, it becomes extremely complicated and large.

Therefore, it is an object of the present invention to provide an ejecting device capable of ejecting a recording medium while satisfactorily ensuring the above-mentioned timing relationship with an extremely simple structure and capable of miniaturization.

[Means for Solving Problems] In the present invention, in order to solve the above problems, a clamp member that clamps a recording medium loaded in a recording medium loading chamber, and the clamp member are operated to operate the clamp. An operation lever slidably arranged in the recording medium loading direction so as to move between a clamp position where the recording medium is clamped by a member and a clamp release position where the clamp is released, and a slide of the operation lever. Is rotatably arranged at a position facing each other in the direction, is biased in a direction of ejecting the recording medium from the loading chamber, and opposes the operation lever at a position where the recording medium is ejected to the clamp position. Locking the sliding operation and rotating the recording medium to a predetermined position against the urging force as the recording medium is loaded into the loading chamber. And a latch member for latching the eject member rotated to the predetermined position by the loading operation of the recording medium to the predetermined position by the ejecting member for releasing the locking of the operation lever by the operation lever. When the recording medium is not loaded, it is locked by the eject member and the sliding operation to the clamp position is prohibited, and the locking is performed by rotating the eject member to the predetermined position by the loading operation of the recording medium. It is released to enable the sliding operation to the clamp position, and a latch releasing portion is formed to release the latch of the eject member by the latch member by the sliding operation to the clamp position, and the latch is released. Instead of the latch member, the eject member is locked against the bias. The locking portion is formed to release the locking of the eject member after the clamped state of the clamp member is released when the operation lever slides to the clamp release position. A structure that is formed so as to allow the recording medium to be ejected is adopted.

[Operation] As a result, with the minimum necessary configuration of the operation lever that is slidable in the disc insertion direction and the eject member that is arranged so as to face the slide direction of the operation lever, the clamping operation, the unclamping operation, and the disc non-operation are performed. Prohibition of clamp operation in the loaded state, release of clamp operation inhibition by disk loading, latch release of the eject member when the operation lever is slid to perform the clamp operation, its locking operation, and latch release of the eject member until the completion of the clamp release operation It is possible to control a series of sequences such as the operation of prohibiting the operation without malfunction.

Further, since the eject member is formed as a rotating member and is arranged at a position facing in the sliding direction of the operation lever, the eject member can be arranged substantially in the space of the width of the operation lever, and particularly the space in the width direction is reduced. Is possible.

[Examples] Hereinafter, details of the present invention will be described based on Examples shown in the drawings.

FIG. 1 and the following figures illustrate an embodiment of the present invention.
A disk clamp and a head load mechanism are shown in FIGS. In the figure, reference numeral 1 is a base of the apparatus, and a front panel 2 is provided on the front side thereof, and 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 arranged above the base 4.

A button 3 that can be operated from the outside of 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 unlocking the slide lever 5 is rotatably attached about a shaft 8 on the upper surface near the inner end of the slide lever 5, and a torsion coil spring 9 wound around the shaft 8 is provided. First of the slide lever 5 by force
One end of the latch 7 abuts on the protruding portion 10 protruding on the right side edge in the figure.

The notch 7 a of the latch 7 is the long hole 5 of the slide lever 5.
The slide lever 5 can be locked at the time of clamping by engaging with the protrusion 11 protruding from the substrate 4 through a.

An arm 12 extends to the tip 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, and gives the slide lever 5 a habit of moving in the direction of arrow A in FIG. .

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

Long holes 15a and 16a are formed along the axial direction at both front and rear ends of the slide lever 5, and projections 15 and 16 projecting from the substrate 4 are fitted in the respective long holes. .

These protrusions 15 and 16 also have a role of determining the height of the slide lever 5 from the substrate 4. Further, a spring 13a is stretched between the protrusion 15 and the protrusion provided on the upper surface in front of the slide lever 5, and the slide lever 5 is moved in the direction of arrow A.
I was pushing in the direction.

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

The rotation axis of the roller 6 is orthogonal to the axial direction of the slide lever 5 and is in contact with the substrate 4.

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

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

The head load lever 17 is rotatably supported via a bent portion 17a of a shaft 18 that is horizontally extended in a state parallel to the axial direction of the slide lever 5 between a pair of projecting pieces 19 and 19 rising from the substrate 4. Has been done.

An L-shaped head load arm 22 is integrally formed at an end portion 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.

Further, a spring 23 is arranged between the lower surface of the bent portion of the L-shaped head load arm 22 and the substrate 4.

Surrounded by this head load arm 22,
The tip of the head arm 24 is arranged.

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

A projecting piece 25 is provided on the head load arm 22 so that its tip is in contact with the head arm 24.

Further, a bent portion 21 that faces downward is formed near the bent portion 20. This bent portion 21 is a stopper that regulates the clockwise rotation limit of the head load lever 17 in FIG. Have the role of.

An arm 5b is provided in the vicinity of the front end of the slide lever 5 so as to be orthogonal to the slide lever 5,
A roller 27 that contacts the substrate 4 is provided at the tip of the arm 5b.

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 frame 33 is configured to be substantially equal to the diameter of the roller 27, and the upward lifting of the roller 27 is restricted.

Further, another roller 26 is provided in the arm 5b.

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

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

Also, a pair of left and right arms 2 is provided at the tip of the clamp lever 29.
9a is projected.

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

The upper end of the clamp arm 30 is restricted by the bent portion 32 projecting from the substrate 4 so as to limit the upward movement.

The clamp arm 30 and the clamp lever 29 are
The protrusion 30a at the base end of the clamp arm 30 is mounted on the upper surface of the clamp lever 29, and the arm 29a of the clamp lever 29 is mounted on the upper surface of the clamp arm 30, respectively.

In the state shown in FIG. 1, the clamp arm 30 is restricted from moving upward with respect to the clamp lever 29 by the bent portion 32, so that the connecting portion between the clamp arm 30 and the clamp lever 29 is bent.

A center cone 31 is attached to the lower side of the clamp arm 30.

Next, the operation of the clamp and head load 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. 1 and 2.

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

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

When the button 3 is pressed in this state, the slide lever 5 is moved in the direction of the arrow B in FIG. 1 against the springs 13 and 13a, and the roller 26 provided in the middle of the arm 5b moves the protrusion 28 of the clamp lever 29. When pushed, 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 the state where they are in substantially the same plane, thereafter, the clamp lever 29 and the clamp arm 30 are integrated. The center cone 31 moves down to center the magnetic disk, and clamping of the magnetic disk with the spindle (not shown) is started.

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

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

At the same time, the roller 6 moves from the lower side of the projecting piece 20a to the lower side of the bent portion 20, so that the head load lever 17 moves the shaft 18
Is rotated in the counterclockwise direction as indicated by arrow C in FIG.

As a result, the head load arm 22 moves down while compressing the spring 23, the head arm 24 is pushed downward via the projecting piece 25, the state shown in FIG. 4 is reached, and the magnetic head contacts the magnetic disk.

On the other hand, when the button 3 is completely pushed and the movement of the slide lever 5 is completed, the protrusions 15 and 16 are formed into the long holes 15a and 16a.
Near the end on the front side of.

At this time, since the protrusion 11 of the latch 7 turns around its tip and fits into the notch 7a, the slide lever 5 is locked in this state.

On the other hand, when the button 3 is pressed again when the magnetic disk is ejected, the slide lever 5 is slightly pressed, but at this time, the latch 7 further rotates in the clockwise direction, and the taper portion 7b thereof rides on the projection 11 so that the projection 11 is It is guided to the lower side of the latch, released from the notch 7a, unlocked, and when the button 3 is released, the slide lever 5 moves to the front side by the force of the spring 13 and follows the operation reverse to the above-mentioned operation, The state shown in FIG. 1 is obtained.

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

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

By the way, in the configuration described above, the clamp lever 29
The connection structure that is formed by a combination of the clamp arm 30 and the clamp arm 30 that can be bent (necked) greatly contributes to the thinning of the entire apparatus.

That is, the clamp lever 29 and the clamp arm 30 are
When the lever is configured as one continuous lever or arm, the tip of the lever becomes high when it is not clamped. However, if the neck bending structure described above is adopted, the tip of the clamp arm 30 is bent at the time of non-clamping. It is regulated by 32 and breaks against the clamp lever 29, and the overall cross section is in a V shape, the maximum height of the lever when unclamped is low, and it greatly contributes to the thinning of the entire device. To do.

The applicant has previously disclosed the details of this mechanism as a "recording medium clamp device".

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

In the figure, reference numeral 34 is an ejector lever formed in a substantially triangular shape with a base, which can be pivoted by a shaft 35 in the vicinity of the tip in the jacket insertion direction of the jacket loading chamber of the apparatus and can be swung vertically. One end of which is supported.

A torsion coil spring 38 is wound around the shaft 35, one end of which is locked by the eject lever 34, and the other end of which is locked by a spring hook 39 provided at the tip of the substrate 4 by bending. , Gives the eject lever 34 a turning tendency in the counterclockwise direction in the figure and urges it downward.

Further, the eject lever 34 has a tip inclined upward and has an arm 34a in a part thereof, and further has a lower surface thereof engaged with the eject pin 36 and a part of the slide lever 5 which are engageable with the tip of the jacket 100. With possible pins 37.

The reference numeral 40 designates a latch member, which is formed by bending upward from the substrate 4 in the vicinity of the arm 34a of the eject lever 34.

The latch member 40 is provided with the eject pin 36 as the jacket 100 is inserted to a predetermined position in the loading chamber.
The eject lever 34 is rotated clockwise via
When it reaches a predetermined position for eject preparation, it has a role of locking the arm 34a and latching the eject lever 34 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 can be engaged with the eject lever 34 by the pin 37 when the jacket is not loaded as shown in FIG. 5, and when the jacket is completely inserted as shown in FIG. A release portion 41 is formed which can engage with the inclined surface of the arm 34a in order to release the latch of the lever 34 by the latch member 40.

Further, after the latch member 40 of the eject lever 34 is released from the latch, a locking portion 42 engageable with the pin 37 for locking the eject lever 34 is provided in place of the latch member 40. Next, the operation of the eject mechanism configured as described above will be described.

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

In this state, the pin 37 is connected to the release portion 41 of the slide lever 5.
Is ready to be engaged with.

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

Next, the jacket 100 is inserted into the loading chamber from the front panel 2 side.
6 is inserted and reaches the innermost position, the eject lever 34 is pushed by the edge of the jacket 100 into which the pin 36 enters from the lower side of the substrate 4, as shown in FIG. It is rotated clockwise against the force of.

As a result, the arm 34a of the eject lever 34 is disengaged from the upper end of the latch member 40, and the elastic force of the torsion coil spring 38 in the vertical direction causes the arm 34a to fall downward, so that the arm 34a is leftward of the latch member 40 as shown in FIG. Will engage with the locking portion 50 which is the side surface of the.

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

Subsequently, when the slide lever 5 is pushed in the direction of the arrow B, the above-mentioned disc clamping and head loading are sequentially performed along with the movement thereof.

In this process, in the first stage, the locking portion 42 of the slide lever 5 closely faces and faces the pin 37 of the eject lever 34, and after release 41 engages with the inclined surface of the arm 34a of the eject lever 34. , Eject lever 34
Is pushed upward against the pressing force of the torsion coil spring 36.

As a result, the latch member 40 releases the latch of the eject lever 34 as shown in FIG. 7, and the arm 34a of the eject lever 34 partially rides on the latch member 40, and instead, the locking portion of the slide lever 5 is engaged. 42 engages with the pin 37 and locks the eject lever 34 at the eject preparation position.

In this state, the slide lever 5 is in a latched state due to the engagement between the latch 7 and the protrusion 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 the arrow B via the button to take out the jacket 100, the latch 7 and the protrusion 11 are disengaged, and the springs 13 and 13a are released.
The slide lever 5 is moved in the direction of arrow A by the force of, and the head load and the disc clamp are released in sequence.

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

Then, after the disc clamp is released, the locking portion 42
Comes out of the pin 37, and as a result, the eject lever 34
The arm 34a rotates counterclockwise while riding 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, resulting in the state shown in FIG.

The adjustment for determining the timing so that the jacket is ejected after the disc clamp is released can be designed very easily because the adjustment of the engagement margin (stroke) of the locking portion 42 of the slide lever 5 with respect to the pin 37 is sufficient. The degree of freedom in design of other related mechanisms such as a clamp mechanism, a head load mechanism, etc. is increased.

[Effect] As is apparent from the above description, according to the present invention, with the minimum necessary configuration of the operation lever slidable in the disc insertion direction and the eject member arranged so as to face the slide direction of the operation lever, Clamping operation and unclamping operation, prohibition of clamping operation in the unloaded state of the disk, release of clamping operation by loading the disk, unlatching and locking operation of the eject member when performing the clamping operation by sliding the operating lever, It is possible to control a series of operations such as the operation of prohibiting the latch release of the eject member until the clamp release operation is completed without malfunction.For example, the eject operation is started after the disk clamp is released. Therefore, no inconvenience occurs in recording and reproduction.

Further, since the eject member is formed as a rotating member and is arranged at a position facing in the sliding direction of the operation lever, the eject member can be arranged substantially in the space of the width of the operation lever, and particularly the space in the width direction is reduced. It is possible to reduce the size of the entire device.

[Brief description of drawings]

FIG. 1 and the following figures illustrate an embodiment of the present invention.
FIG. 3 is a plan view of the magnetic disk device before operating the slide lever, FIG. 2 is a perspective view of the head load mechanism, and FIG. 3 is a plan view of the magnetic disk device after operating the slide lever.
FIG. 4 is a perspective view of the head loading mechanism after head loading,
5 is a plan view of the eject mechanism before mounting the jacket, FIG. 6 is a plan view of the eject mechanism after mounting the jacket, and FIG. 7 is a perspective view of the eject mechanism. 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

 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP 58-169369 (JP, A) JP 58-150165 (JP, A) Actual 59-177084 (JP, U) Actual 59- 20494 (JP, U)

Claims (1)

[Claims] 1. A clamp member for clamping a recording medium loaded in a recording medium loading chamber, a clamp position for operating the clamp member to clamp the recording medium by the clamp member, and a clamp release for releasing the clamp. Like moving between positions,
An operation lever slidably arranged in the loading direction of the recording medium, and a rotatably arranged position facing the sliding direction of the operation lever, and urged in a direction to eject the recording medium from the loading chamber. , At a position where the recording medium is ejected, the sliding movement to the clamp position is locked by facing the operation lever, and a predetermined operation is performed against the bias with the loading operation of the recording medium into the loading chamber. An eject member that unlocks the operation lever when rotated to a position, and a latch member that latches the eject member that has been rotated to the predetermined position by the loading operation of the recording medium to the predetermined position. In the unloaded state of the recording medium, the operation lever is locked to the eject member and is prohibited from sliding to the clamp position. When the eject member is rotated to the predetermined position by the loading operation of the recording medium, the lock is released and the slide operation to the clamp position is possible, and the eject operation is performed by the slide operation to the clamp position. A latch release portion for releasing the latch of the member by the latch member is formed, and a locking portion for locking the eject member having the latch released instead of the latch member against the bias is provided. The locking portion is formed so that, when the operation lever slides to the clamp release position, the lock of the eject member is released after the clamp state by the clamp member is released, and the ejecting of the recording medium is performed. The ejecting device is formed so as to enable the above.