JPH054345U - Disk drive - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a disk drive device capable of performing long-term stable long-term discharge without wearing the inclined surface of the disk cartridge. A first inclined surface 15a is formed on an engaging portion 15 of an eject arm 12, and the inclined surface 15a does not come into contact with the inclined portion 2a of the tip edge of the disk cartridge 1 immediately before the end of the eject operation. Therefore, the engaging portion 15 of the eject arm 12 does not slide on the slope 2a of the disk cartridge 1 and the engaging portion 1 does not slide.
Reference numeral 5 abuts on a corner a at the upper end of the slope 2a, and the engaging portion 15 slides on the corner a by the eject operation to get over the slope 2a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is used by inserting a disk cartridge containing an information recording disk such as a magnetic disk into a hard case equipped with a shirt and using the urging force of the engaging portion that opens and closes the shutter. The present invention relates to a disk drive device that ejects disk cartridges to the outside of the device.

[0002]

[Prior Art]

 This type of conventional magnetic disk drive is supported by a chassis made of aluminum alloy so that it can be moved up and down, and when a disk cartridge is inserted into the device, it is held in a cartridge holder (hereinafter abbreviated as holder). And a turntable for mounting the magnetic disk housed in the case of the disk cartridge, a spindle motor arranged on the bottom side of the chassis for rotating the turntable, and a turntable on the turntable. Upper magnetic head and lower magnetic head for writing / reading signals to / from both sides of the magnetic disk loaded in, a hold case that can be rotated by holding the upper magnetic head at the free end, and a lower case. The carriage that holds the magnetic head and also supports the hold case in a rotating manner, and this carriage in the radial direction of the magnetic disk. It is mainly composed of a scan Tetsu ping motor for transporting the.

The raising / lowering operation of the holder is performed by a well-known cam mechanism which is interlocked with the operation of the slide plate movable in the vertical direction. That is, when the disk cartridge latch is inserted all the way into the holder, the eject arm is locked by the lock lever with the shutter of the disk cartridge latch opened, and at the same time, the lock of the slide plate is released and the elastic force of the spring is released. The force causes the slide plate to move toward the cartridge insertion opening side, and along with this movement, the cam mechanism causes the holder to descend to the load position. If the eject button connected to the slide plate is pushed in when the holder is in the load position, the cam mechanism raises the holder as the slide plate moves toward the back, and the lock lever and lock lever When the eject arm rotates, the disc cartridge moves to the cartridge insertion slot side with the shutter closed, and is ejected from the cartridge insertion slot to the outside of the device.

By the way, magnetic disks used in personal computers are generally classified into a 5.25-inch diameter floppy disk and a 3.5-inch floppy disk. The former one with a diameter of 5.25 inches is stored in a flexible case, and the magnetic head enters directly from the head insertion port opened in advance to write and read signals, but it has been widely used in recent years. The 3.5 inch diameter one is stored in a hard case equipped with a shutter for opening and closing the head insertion opening, and is handled as a so-called disc cartridge.

FIG. 4 is a bottom view of the disk cartridge 1 as described above. A hard case 2 having a substantially square shape in plan view, a magnetic disk 3 rotatably housed in the case 2, and a case 2 are shown. The magnetic disk drive is equipped with a shutter 4 which is mounted at the tip end in the insertion direction (direction of arrow A) and is slidable in a direction orthogonal to the insertion direction (direction of arrow B). A recess for positioning the eject arm pin is formed at the front edge of the case 2 in the insertion direction. In the recess, a slanted surface 2a and a locking step 2b for locking the pin with the shutter 4 open. Are formed. In addition, a window hole 5 for exposing a head insertion opening (not shown) of the case 2 is formed on each of both surfaces of the shutter 4 having a substantially U-shaped cross section, and the head can be inserted by sliding the shutter 4. The mouth is designed to open and close.

[0006]

[Problems to be solved by the device]

 By the way, this type of magnetic disk drive device is recently required to have a large discharge cartridge (for example, 40 mm or more: referred to as a long discharge amount) for easy handling of the discharged disk cartridge. ing.

During the eject operation, the pin 6 of the eject arm moves as shown in FIG. In FIG. 5 (a), reference characters A, B, C, D, and E indicate movement states of the pin 6 in eject operation, position A is in a locked state with the shutter 4 opened, and position B is in a unlocked state. The position C reaches the slope 2a, the position D is the end of the slope 2a, the position E is the eject completed state, the pin 6 moves from the position A to the position E, and the disk is closed while the shutter 4 is closed. Cartridges are being discharged.

In this eject operation, the pin 6 slides in the recess at the tip of the case 2 on the insertion side as described above. During the course of this process, when the pin 6 passes through the slope 2a, the pin 6 A component force Fb is generated on the surface, the component force Fa for discharging the disk cartridge is reduced, and the frictional force due to friction is also increased on the slope 2a.

Therefore, when the disk cartridge is continuously used repeatedly, the friction coefficient of the slope portion 2a increases due to frictional wear, so that the disk cartridge may gradually stop during discharge and may become long. The long-term stability of the quantity emission was immeasurable.

The present invention has been made in view of the above-mentioned problems of the prior art and has been made to solve this problem. The purpose of the present invention is not to reduce the discharge force when passing through the slope of a disk cart ledge, and to achieve long-term stability. Another object of the present invention is to provide a disk drive device capable of discharging a large amount.

[0011]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is a disk car in which an information recording disk is housed in a hard case, and a shutter is urged in a direction to close an opening exposing the information recording disk. It has a cartridge holder that holds the cartridge and an engaging portion that is biased in the ejecting direction, moves in the inserting / removing direction of the information recording disk, and moves in the direction orthogonal to the inserting / removing direction to open / close the shutter. The eject arm is moved by the eject operation in the ejecting direction to push out the disc cartridge, and at the same time, the shutter that is in the open state is also moved in the closing direction. In the drive device, an inclined surface is formed on the engaging portion of the eject arm, and the inclined surface is formed immediately before the end of the eject operation. That it is a configuration that is the disc car set kept from falling in contact with the inclined surface portion 2a of the leading edge of Toritsuji.

[0012]

[Action]

 By the above means, the engaging portion of the eject arm does not slide on the sloped portion of the disk cartridge, but the engaging portion abuts on the corner of the upper end of the sloped portion. Then, due to the eject operation, the engaging portion slides on the corner portion and gets over the slope portion.

[0013]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is an explanatory view of a main part of the disk drive device according to the present embodiment as viewed from above, and FIGS. 2A, 2B and 2C are views of the disk drive device according to the present embodiment. FIG. 3 is an explanatory view showing an operating state, and FIG. 3 is a plan view of an engaging portion of the eject arm. In these figures, an eject arm 12 is rotatably supported by a support pin 13 on the top surface of a top of a cartridge carriage holder 11 for holding a disk cartridge 1 inserted into the device. The eject arm 12 is urged in the counterclockwise direction, that is, in the direction in which the inserted disc cartridge 1 is ejected by a tension spring 14 that is stretched between the hooking piece and the cartridge holder 11. ing. An engaging portion 15 is provided at a free end portion of the eject arm 12 and is brought into contact with the tip of the cartridge 1 to be inserted. The engaging portion 15 is also moved leftward (or rightward) in FIG. 1 in accordance with the pivotal movement of the eject arm 12 to open and close the shutter 4 of the disk cartridge. The engaging portion 15 is formed by bending the tip of the eject arm 12 downward and further outwardly bending it to form an L-shape having a first inclined surface 15a and a second inclined surface 15b. Is formed in. The inclination angle of the first inclined surface 15a is such that when the engaging portion 15 reaches the inclined surface portion 2a of the case 2 during the eject operation, only the tip of the first inclined surface 15a abuts. It is set smaller than the tilt angle. Therefore, even if the eject operation further progresses from the state of FIG. 2B, the first inclined surface 15a slides on the corner a at the end of the inclined surface portion 2a of the case 2, and the engaging portion 15 does not slide on the slope 2a of the case 2.

Next, the operation of the above embodiment will be described with reference to FIG.

When the disk cartridge 1 is inserted into the device, the engaging portion 15 abuts on the recessed portion of the tip thereof, and the disk cartridge 1 is pushed in this state, so that the engaging portion 15 (image The arm 12) resists the elastic force of the tension spring 14 and the image arm 12 rotates counterclockwise, and the shutter 4 is released as the engaging portion 15 moves. The disk cartridge 1 reaches the position shown by the one-dot chain line in FIG. 2 (a), and the engaging portion 15 is locked by falling into the locking step portion 2b, which is not shown.

When an eject button (not shown) is pressed after the end of recording / reproducing, the engaging portion 15 moves in an arc shape by the elastic force of the tension spring 14, that is, in the discharging direction and the right direction. Therefore, the opened shutter 4 is closed, and the disc cartridge 1 is pushed out by the engaging portion 15 and discharged to the outside of the apparatus.

During this discharging operation, the engaging portion 15 pushes the disk cartridge 1 downward in FIG. 2 from the state shown in FIG. 2A while sliding the tip of the case 2 to the right as described above. Then, as shown in FIG. 2B, the tip of the first inclined surface 15a of the engaging portion 15 abuts on the corner a at the upper portion of the inclined surface 2a of the case 2. At this time, the first inclined surface 15a is not in contact with the inclined surface portion 2a of the case 2. When the eject operation further progresses, the first inclined surface 15a slides on the corner portion a to get over the inclined portion 2a without sliding, and the eject is completed as shown in FIG. 2C. ..

The tip of the second inclined surface 15b abuts the shutter 4 to open and close the shutter 4.

In the embodiment constructed as described above, the engaging portion 15 of the eject arm 12 does not slide on the inclined surface portion 2a of the disk cartridge 1 and the engaging portion 15 does not move on the inclined surface portion 2a. Since the engaging portion 15 slides on the corner a by the eject operation and rides over the slope 2a by the eject operation, the slope 2a of the disk cartridge 1 is not worn and the A stable long-term discharge can be performed.

[0021]

[Effect of the device]

 As described above, according to the present invention, it is possible to provide a disk drive device capable of performing long-term stable long-term discharge without abrading the slope portion of the disk cartridge.

[Brief description of drawings]

FIG. 1 is an explanatory view of essential parts showing a disk drive device according to an embodiment of the present invention as viewed from above.

FIG. 2 is an explanatory view showing each operating state of the disk drive device according to the embodiment of the present invention.

FIG. 3 is a plan view of an engaging portion of a disc drive device eject arm according to an embodiment of the present invention.

FIG. 4 is a bottom view of the disk cartridge.

FIG. 5 is an explanatory diagram showing a relationship between a pin and a case in a conventional disk drive device.

[Explanation of symbols]

 1 Disk Cartridge 2 Case 2a Slope 3 Magnetic Disk 4 Shirt 11 Cartridge Holder 12 Eject Arm 15 Engagement 15a First inclined surface

Claims (1)

[Claims for utility model registration] 1. A disk car comprising an information recording disk housed in a hard case and a shutter biased in a direction to close an opening exposing the information recording disk. Cartridge holder that holds the cartridge,
An eject arm having an engaging portion that is urged in the ejecting direction, moves in the inserting / removing direction of the information recording disk, and moves in a direction orthogonal to the inserting / removing direction to open / close the shutter, by an eject operation. In the disk drive device in which the eject arm moves in the discharging direction to push out the disk cartridge, and the shutter in the open state also moves in the closing direction, the engaging portion of the eject arm Forming an inclined surface on the
The disk drive device is characterized in that the inclined surface is set so as not to come into contact with the inclined surface portion of the leading edge of the disk cartridge just before the end of the eject operation.