JP2002288920A - Cartridge recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent interferences with a magnetic head carriage by pressing a cartridge held in a holder in a predetermined direction without inclining it in the holder in a cartridge recording/reproducing device such as a floppy (registered trade mark) disk device. SOLUTION: Energizing means 20 and 21 for energizing a floppy disk toward the other side part are provided roughly in a center position of the depth direction of one side part of a holder 16, and pressing is applied in a direction away from the carriage 30 of a magnetic head and the rotational fulcrum of an arm 32. The energizing force of the energizing means is set to a value larger than a force for opening the shutter of the floppy disk against the energizing force of a spring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge type recording / reproducing apparatus, and in particular, to guide a cartridge type recording medium such as a floppy disk to a predetermined recording / reproducing position by moving up and down, and to a predetermined discharging position. The present invention relates to a cartridge type recording / reproducing apparatus configured to perform such operations.

[0002]

2. Description of the Related Art When a cartridge type recording medium such as a floppy disk is loaded in a cartridge type recording / reproducing apparatus, the cartridge moves up and down and is guided to a predetermined recording / reproducing position of the cartridge. You will be guided to the location. In order to move the cartridge up and down in this manner, a holder that holds the cartridge so as to be held is used, and the holder is configured to move up and down with respect to the casing.

[0003] By the way, the size of the cartridge, etc.
In the case of a floppy disk, it is set to fall within a certain allowable range according to JIS standards or the like. For this reason, the width of the floppy disk has a variation of 0.5 mm at the maximum. Therefore, the width of the holder for holding both side surfaces of the cartridge so as to hold the cartridge needs to have a sufficient width. Therefore, when a floppy disk with a small width is loaded into the holder, the floppy disk rattles inside the holder, and even if the floppy disk is moved downward to move to a predetermined recording / reproducing position, the floppy disk is guided to an accurate position. Therefore, interference between the floppy disk and the carriage may occur, and the magnetic head may be deviated from a correct track position on the magnetic recording medium. Such misalignment not only impairs accurate recording / reproduction, but in the worst case, reading of recorded data may not be possible.

In one type of the conventional floppy disk drive, a pin is applied to a V-shaped groove exposed when a sliding window of a cartridge is opened to urge the floppy disk toward one side thereof. (Japanese Patent Laid-Open No. 2000-57
668). In this method, the floppy disk
Since the tip is urged toward one side, the floppy disk is inclined inside the holder. Further, in another conventional floppy disk device, a corner portion of the tip of the floppy disk comes into contact with an inclined guide provided at the back of the holder, so that as the floppy disk is inserted into the back, the opposite side of the inclined guide. Biased in one lateral direction. Even in this method, the floppy disk is urged toward one side at the tip, so that the floppy disk is inclined inside the holder. In addition, the biasing causes a sliding load at the time of insertion / ejection of the floppy disk, resulting in an increase in insertion force and a decrease in the amount of ejected floppy disk.

[0005]

In any of these conventional systems, the floppy disk is urged toward one side at the leading end, so that a rotational torque is applied to the floppy disk, and the floppy disk is placed inside the holder. It turns and tilts. If the inclination is large, even if the floppy disk is moved downward to move to a predetermined recording / reproducing position, the floppy disk cannot be guided to an accurate position, and the above-described problem occurs. Further, since the cartridge is constantly biased, a sliding load on the cartridge is generated. Therefore, according to the present invention, even if a cartridge having a variation in width is loaded, a predetermined recording and
An object of the present invention is to provide a cartridge type recording / reproducing apparatus which can guide a cartridge to a reproducing position and does not increase a sliding load.

[0006]

In order to achieve the above object, according to the present invention, when a holder for holding a cartridge moves to a lower position while holding the cartridge to reach a predetermined recording / reproducing position, the entire holder is Is biased in one of the left and right predetermined directions to prevent the cartridge from tilting in the holder due to the variation in the width of the cartridge, and to accurately guide the cartridge to a predetermined recording / reproducing position.

That is, according to the present invention, a casing,
A driving body slidably mounted on the casing,
A holder for accommodating a cartridge of a recording medium, the holder capable of moving up and down with respect to the casing;
In a cartridge type recording / reproducing apparatus having a mechanism for moving the holder to a high position and discharging the holder to the outside when the driving body is pressed in a predetermined direction when the driving body is pressed in a predetermined direction when the holder is at a low position located at the time of reproduction. When the cartridge is housed, a biasing means for biasing the cartridge toward the other side at a substantially central position in the depth direction of one side of the holder is provided. A recording / reproducing device is provided.

According to this structure, the holder is urged toward the other side at the substantially central position in the depth direction of one side of the holder, so that the cartridge does not tilt in the holder.

Further, according to the present invention, a casing, a driving body slidably attached to the casing, a first urging means for urging the driving body in one direction, and a driving unit are provided on the driving body. A holder for accommodating a cartridge of a recording medium, and a holder for accommodating a cartridge of a recording medium, the holder being configured to regulate movement of the driver by the first urging means, A trigger lever that can be released from the movement restriction of the driving body by being rotated by the cartridge stored in the cartridge, a second urging unit that urges the trigger lever in the movement restriction direction of the driving body, A cartridge type magnetic head comprising: a first magnetic head fixed to a carriage movable in a radial direction of the recording medium; and a second magnetic head fixed to an arm having a rotation fulcrum on the carriage. In the recording / reproducing apparatus, a piece that engages with the holder and pushes the cartridge in a direction orthogonal to a direction of insertion / ejection of the cartridge housed in the holder and opposite to a rotation fulcrum of the carriage and the arm. A cartridge type recording / reproducing apparatus is provided, wherein a shift lever and third biasing means for biasing the one-side shift lever are provided.

According to this configuration, the cartridge is pressed in a direction perpendicular to the insertion / ejection direction and opposite to the rotation fulcrum of the carriage and the arm, so that not only does the cartridge not tilt in the holder, but also The cartridge is urged away from the drive of the carriage,
The cartridge does not hinder the drive.

Further, according to the present invention, the one-side moving lever can be rotatably engaged with the holder.

According to this configuration, the cartridge can be urged in a desired direction only by attaching a relatively small biasing lever extending in the insertion / ejection direction of the cartridge to one end of the holder.

Further, according to the present invention, the shift lever can be slidably engaged with the holder.

According to this configuration, the biasing lever attached to one end of the holder does not occupy a large area in the cartridge insertion / ejection direction, and can bias the cartridge in a desired direction.

Further, according to the present invention, when the holder is at the high position, the driving body is engaged with the biasing lever, and presses the biasing lever against the cartridge when inserting and discharging the cartridge. It can be configured to be held in a position where it does not.

According to this configuration, the insertion and insertion of the cartridge
At the time of ejection, the cartridge is not pressed by the one-sided lever, so that the cartridge can be smoothly moved without receiving resistance.

Further, according to the present invention, the driving body has an inclined portion as a portion to be engaged with the one-sided lever, and the one-sided lever has a protrusion engageable with the inclined portion of the driving body. Parts.

According to this structure, when the driving body moves in the cartridge insertion direction, the inclined portion regulates the position of the protrusion of the biasing lever. The lever can be prevented from pressing the cartridge.

Further, according to the present invention, the distance between the surface of the one-sided lever contacting the cartridge and the inner surface of the holder at a position facing the surface is slightly larger than the width of the cartridge. , The one-sided lever can be provided.

According to this configuration, the insertion and insertion of the cartridge
When the cartridge is ejected, the cartridge is not pressed by the one-sided lever and does not receive resistance, so that smooth movement is ensured.

Further, according to the present invention, the thickness of the plate portion forming the surface of the one-side lever contacting the cartridge can be set smaller than the thickness of the plate portion forming the holder.

According to this configuration, when the plate portion forming the surface of the one-sided lever that comes into contact with the cartridge is in the retracted position where the cartridge is not pressed, the plate is stored within the thickness range of the plate portion forming the holder. As a result, the holder does not protrude outward or inward of the plate, and does not hinder the movement of the cartridge and the movement of the driving body.

According to the present invention, the cartridge has a shutter which is opened against a predetermined urging force to expose the recording medium, and the urging force of the third urging means is controlled by the shutter. Can be set to a value that allows the cartridge to be pressed in the direction opposite to the rotational fulcrum of the carriage and the arm against the urging force of the cartridge.

According to this structure, since the urging force applied to the cartridge by the third urging means is larger than the urging force in the direction to close the shutter, the cartridge is pressed in a desired direction while opening the shutter when the cartridge is inserted. And the cartridge does not tilt inside the holder due to the force applied to release the shutter.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a cartridge type recording / reproducing apparatus according to a preferred embodiment of the present invention, FIG. 2 is a plan view showing a state where a part of FIG. 1 is assembled, and FIG. FIG. 4 is a perspective view of the one-sided lever shown in FIGS. 1 to 3.

In FIG. 1, a floppy disk device as a cartridge type recording / reproducing device has a casing composed of a base 10 as a chassis chassis and a cover 12 as a chassis cover. A panel 44 is attached to the front of the casing, and a shutter 46 that opens and closes an opening of the panel 44 is attached to the panel 44. Base 1
A spindle motor 22 for rotating and driving a floppy disk serving as a cartridge is attached to 0. A control printed circuit board 14 in which a control circuit is incorporated is attached to the base 10.

A stepping motor 24 for driving a carriage 30, which will be described later, is attached to a rear portion of the base 10 by a fixture 28. The carriage 30 is mounted on the base 1
The carriage 30 can be moved in the radial direction of the floppy disk along a guide rod 34 fixed to 0, and the screw shaft 26 of the stepping motor 24 and the rear portion of the carriage 30 are screwed together. Moving. A magnetic head (not shown) is mounted on the carriage 30, and another magnetic head is mounted thereon, and an arm 32 is mounted on the carriage 30.

A holder 16 is mounted on the cover 12 so as to be vertically movable. The holder 16 has left and right holding portions 16A and 16B for holding a floppy disk (not shown) on both sides. Also, the holder 16
, A shift lever 20 is rotatably mounted against a spring 21. As shown in FIG. 3, the biasing lever 20 has a hole 20A (see FIG. 4) pivotally supported by a projection 17 provided on the holder 16 and a contact portion 20B which contacts a side portion of the floppy disk. Have. Contact part 20
The thickness of B is set to be thinner than the plate forming the holder 16. Further, the trigger lever 3 is provided on the holder 16.
6 is rotatably mounted against the trigger spring 38.

The eject lever 18 as a driving body is
It is slidable with respect to the cover 12, and is urged toward the panel 44 by a spring 48 (see FIG. 2). A button 42 is attached to the projection 18A of the eject lever 18. The button 42 is exposed to the outside through a recess provided in the panel 44 and is pressed when the user attempts to eject the floppy disk. A claw portion 18B is provided at the rear end of the eject lever 18, and an inclined portion 18D is provided near one side.
Further, the inclined grooves 1 are provided on both sides of the eject lever 18.
8C is provided. An eject pawl 50 that slides against the eject spring 40 is slidably attached to the holder 16 (see FIGS. 3 and 4). The eject claw 50 is engaged with the tip of the floppy disk, and urges the floppy disk in the direction of the panel 44, that is, in the direction of discharging by the urging force of the eject spring 40.

The above embodiment operates as follows.
First, before the floppy disk is inserted,
The holder 16 is at a high position, and is located immediately below the eject lever 18. Note that high and low are relative, but in this specification, when the holder 16 is at the top of FIG. 1, it is called “high”, and when it is located below, it is called “low”. At this high position, the inclined portion 18D of the eject lever 18 is
C and makes the one-sided lever 20 slightly rotate outwardly against the urging force of the spring 21. As a result, the contact portion 20B of the biasing lever 20 is located within the range of the plate thickness of the side plate of the holder 16 because its thickness is thinner than the plate thickness of the side plate of the holder 16. .

This position of the one-side lever 20 is a retracted position, and the contact portion 20B does not protrude inside or outside the plate on the side surface of the holder 16. That is, when the floppy disk is inserted or ejected,
Does not press the floppy disk and does not protrude outside the holder 16, so that it does not hinder the relative movement of the eject lever 18 with respect to the holder 16. It should be noted that the surface of the contact portion 20B of the one-sided lever 20 at the retracted position that comes into contact with the floppy disk, that is, the right surface in FIG. The distance from the inner surface of a certain holder side is set to be larger than the width of the floppy disk. Therefore, the contact portion 2
0B does not hinder the insertion and ejection of the floppy disk.

In this state, the floppy disk is
When the shutter 46 is opened through the opening of the holder 4 and inserted, the floppy disk is inserted into the holder 1 on the U-shape of the holder 16.
It is guided by 6A and 16B and goes to the back. At this time, since the tip of the floppy disk advances toward the back while pressing the eject claw 50, the eject spring 40 applies an urging force to discharge the floppy disk. When the floppy disk is pushed inward against this urging force, the leading end of the floppy disk contacts the leading end 36A of the trigger lever 36,
The trigger lever 36 is rotated against the biasing force of the trigger spring 38. At this time, the tip 36A of the trigger lever 36 is engaged with the end of the shutter (not shown) of the floppy disk to open the shutter. As is well known, the shutter of the floppy disk is urged by a spring (not shown) inside the floppy disk in a direction to close a window for exposing the internal magnetic recording medium (not shown). 36A opens the shutter against the urging force of the spring of the shutter.

When the trigger lever 36 rotates about 90 degrees,
The rear end 36B is released from the claw portion 18B at the rear end of the eject lever 18 and the claw portion 18B which has been engaged up to that time. That is, since the eject lever 18 which has been pushed rearward by the holder 16 is no longer pushed by the holder 16, the eject lever 18 moves forward (toward the panel 44) by the urging force of the spring 48, and as a result, Since the protrusion 16C on the side of the holder 16 moves along the inclined groove 18C on the side of the eject lever 18, the holder 16 is pushed down.

During this operation, the floppy disk is urged to the opposite side by the contact portion 20B of the biasing lever 20, so that the floppy disk is biased toward the holding portion 16B of the opposite holder. Become. That is, the floppy disk is pressed in the direction opposite to the position of the screw shaft 26 corresponding to the rotation fulcrum of the carriage 30 and the arm 28, and the floppy disk does not approach the periphery of the screw shaft 26. Interference with the disk can be prevented. It should be noted here that the contact portion 20B is provided at a substantially central position in the depth direction of the side of the holder 16, and at this position, the floppy disk is urged in the direction of the other side. It is. Therefore, no rotational torque is applied to the floppy disk, and the floppy disk does not tilt in the holder 16.

Although the tip 36A of the trigger lever 36 opens the shutter against the urging force of the spring for closing the shutter of the floppy disk, the tip 36A of the trigger lever 36 opens the shutter. If the force to be applied is larger than the urging force of the spring 21 of the biasing lever 20, the force pressing the front portion (shutter portion) of the floppy disk in the same direction is superior to the force pressing the center of the side of the floppy disk. As a result, a rotational torque is applied to the floppy disk, and the floppy disk is inclined inside the holder 16. Therefore, in the present invention, the spring 21
By setting the urging force of the trigger lever 36 larger than the urging force inside the floppy disk for closing the shutter, the tip 36A of the trigger lever 36 does not apply any extra force to the floppy disk, thereby preventing the floppy disk from tilting. Like that.

FIG. 5 is an explanatory diagram for explaining the operation of the above embodiment. FIG. 5A shows the state at the time of insertion.
FIG. 5B shows the state at the time of discharging. At the time of insertion, the state where the holder 16 moves up and down from the trigger point is shown, and the state where the one-side lever 20 moves (rotates) from the retreat position to the cartridge pressing position while the holder 16 moves downward. It is shown. On the other hand, during ejection, the eject lever 18 is pushed, and after the trigger point (cartridge ejection position), the one-sided lever 20 is shown returning from the pressed position to the retracted position.

In the above-described embodiment, since the one-side lever 20 is rotatably engaged with the holder 16, the one-side lever 20 is inserted into one end of the holder so that the floppy disk can be inserted and inserted.
It is attached so as to extend in the discharge direction. But,
If it is not desired to occupy a large area in the direction of insertion / ejection of the floppy disk,
Can also be slidably mounted on. That is, the bias lever 20 can be slidable in a direction orthogonal to the direction of insertion / ejection of the floppy disk.

[0038]

As described above, according to the present invention, when a cartridge (for example, a floppy disk) is stored in the holder, the cartridge is moved to the other side at a substantially central position in the depth direction on one side of the holder. The cartridge is biased in the side direction, so that the cartridge does not tilt in the holder.

According to the present invention, the cartridge is pressed in the direction perpendicular to the insertion / ejection direction of the cartridge and in the direction opposite to the rotation fulcrum of the carriage and the arm. The cartridge is urged away from the drive of the carriage,
The cartridge does not hinder the drive.

Further, according to the present invention, the cartridge can be mounted only by attaching a relatively small bias lever extending in the cartridge insertion / ejection direction to one end of the holder by rotatably engaging the bias lever with the holder. In a desired direction.

Further, according to the present invention, the biasing lever attached to one end of the holder so that the biasing lever can slide on the holder does not occupy a large area in the insertion / ejection direction of the cartridge. Can be energized.

According to the present invention, when the holder is at the high position, the driving body engages with the one-sided lever and holds the one-sided lever at a position where the cartridge is not pressed. The cartridge is not pressed by the one-sided lever, and the cartridge can be smoothly moved without receiving resistance.

Further, according to the present invention, since the driving body has the inclined portion as a portion to be engaged with the biasing lever, and the biasing lever has the protruding portion which can be engaged with the inclined portion of the driving body.
When the driving body moves in the cartridge insertion direction, the inclined portion regulates the position of the protrusion of the one-sided lever.
With a simple configuration, it is possible to prevent the one-sided lever from pressing the cartridge during insertion / ejection of the cartridge.

Further, according to the present invention, the gap between the surface of the one-side lever contacting the cartridge and the inner surface of the holder opposed to this surface is slightly larger than the width of the cartridge. By disposing the cartridge, the cartridge can be smoothly moved without being pressed by the one-sided lever or receiving resistance when the cartridge is inserted or ejected.

Further, according to the present invention, the thickness of the plate portion forming the surface of the one-side lever contacting the cartridge is set to be smaller than the thickness of the plate portion forming the holder, so that the one-side lever is moved to the retreat position. At one time, the contact portion is accommodated within the range of the thickness of the plate portion forming the holder, and does not protrude outside or inward of the plate portion of the holder, so that the movement of the cartridge and the movement of the driving body are performed. There is no hindrance.

According to the present invention, the urging force of the third urging means is set to a value which can press the cartridge in the direction opposite to the rotation fulcrum of the carriage and the arm against the urging force of the shutter. Accordingly, the urging force applied to the cartridge by the third urging means is larger than the urging force in the direction to close the shutter, so that the cartridge is pressed in a desired direction while opening the shutter when the cartridge is inserted,
In addition, the cartridge does not tilt inside the holder due to the force applied to release the shutter.

In the above embodiment, the cartridge type recording and
Although a floppy disk device has been described as an example of the reproducing device, other disk devices that receive a cartridge of a recording medium of another recording method such as an optical disk or a magneto-optical disk (MO) and guide the cartridge to a predetermined head position are also described. The invention is applicable.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a preferred embodiment of a cartridge type recording / reproducing apparatus according to the present invention.

FIG. 2 is a plan view showing a state where a part of FIG. 1 is assembled.

FIG. 3 is a plan view showing a state in which an eject lever is removed from FIG. 2;

FIG. 4 is a perspective view of the one-sided lever shown in FIGS.

FIG. 5 is an explanatory diagram for explaining the operation of the embodiment of FIGS. 1 to 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base 12 Cover (a casing is comprised with a base) 16 Holder 16C Projection 18 Eject lever 18B Claw 18C Inclined groove 18D Inclined part 20 One-sided lever 20B Contact part 20C Projection 21, 48 Spring 22 Spindle motor 30 Carriage 32 Arm 36 Trigger lever 38 Trigger spring 40 Eject spring 44 Panel 46 Shutter 50 Eject claw

Claims (9)

[Claims] 1. A casing, a driving body slidably attached to the casing, a holder accommodating a cartridge of a recording medium, and a vertically movable holder with respect to the casing; When the driving body is pressed in a predetermined direction at a low position, the mechanism moves the holder to a higher position and discharges the holder to the outside. A cartridge type recording / reproducing device, wherein when the cartridge is stored, an urging means for urging the cartridge toward the other side at a substantially central position in the depth direction of one side of the holder is provided. apparatus. 2. A casing, a driving body slidably attached to the casing, first urging means for urging the driving body in one direction, and an inclined surface provided on the driving body. A holder for housing the cartridge of the recording medium, which moves up and down by the horizontal movement of the driving body, and restricts the movement of the driving body by the first urging means, and stores the cartridge in the holder. A trigger lever that can be rotated by the cartridge to release the movement restriction of the driving body; a second urging unit that urges the trigger lever in the movement restriction direction of the driving body; and a radius of the recording medium. A first magnetic head fixed to a carriage movable in a direction, and a second magnetic head fixed to an arm having a rotation fulcrum on the carriage. A biasing lever that engages with the holder and pushes the cartridge in a direction perpendicular to the insertion / ejection direction of the cartridge housed in the holder and opposite to the rotation fulcrum of the carriage and the arm; And a third urging means for urging the biasing lever. 3. The cartridge type recording / reproducing apparatus according to claim 1, wherein the one-side shift lever is rotatably engaged with the holder. 4. The cartridge type recording / reproducing apparatus according to claim 1, wherein said one-side moving lever is slidably engaged with said holder. 5. The driving body engages with the biasing lever when the holder is at the high position, and holds the biasing lever at a position where the cartridge is not pressed when the cartridge is inserted and ejected. The cartridge type recording / reproducing apparatus according to claim 2, wherein: 6. The driving body has an inclined portion as a portion that engages with the one-sided lever, and the one-sided lever has a protrusion that can be engaged with the inclined portion of the driver. The cartridge type recording / reproducing apparatus according to claim 5, wherein 7. The one-side shift lever such that a distance between a surface of the one-side lever contacting the cartridge and an inner surface of the holder at a position opposing the surface is slightly larger than a width of the cartridge. 3. The cartridge type recording / reproducing apparatus according to claim 2, wherein 8. The apparatus according to claim 2, wherein a thickness of a plate portion forming a surface of the one-side lever contacting the cartridge is set smaller than a thickness of a plate portion forming the holder. Cartridge type recording / reproducing device. 9. A cartridge having a shutter which opens to resist a predetermined urging force in order to expose a recording medium, wherein the urging force of said third urging means is opposite to the urging force of said shutter. 3. The cartridge type recording / reproducing apparatus according to claim 2, wherein a value is set such that the cartridge can be pressed in a direction opposite to a rotation fulcrum of the carriage and the arm.