JPS61227262A - Magnetic disk driving device - Google Patents

Abstract

PURPOSE:To load safely a magnetic disk into a device by providing respectively a disk cassette, a carrier, a cassette holder, a cassette guide, a sliding body, a detecting device and a driving part. CONSTITUTION:At a bottom surface 10 of a frame 9, a carrier 14 to hold a disk driving shaft 11 and a magnetic head 12 is provided, a cassette holder 31 to hold a hard case 2 accommodating a magnetic disk 3 is provided and a cassette guide 27 to move the cassette holder 31 for the bottom surface of a frame 9 by a sliding action is provided at the frame 9. A sliding body 48 to have a locking part 51 for holding intermittently the hard case 2 inserted into the cassette holder 31 is provided, the sliding body 48 is freely slidably fitted to the cassette holder 31, a detecting device 67 to detect the inserting depth of the hard case 2 at the time of locking the hard case 2 and the sliding body 48 is provided, and a driving part 59 to slide the cassette guide 27 and the sliding body 48 by the signal of the detecting device 67 in the directly- opposed direction is provided.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a magnetic disk drive device.

BACKGROUND OF THE INVENTION Conventional floppy disk drives require manual insertion and ejection of magnetic disks.

Problems to be Solved by the Invention For this reason, if an inexperienced person handles the magnetic disk, there is a risk of forcefully pushing the magnetic disk and damaging the internal mechanism. There is also the negative effect of turning off the power without removing the magnetic disk.

If you forget to remove the magnetic disk and leave it unattended, it will be bad for the magnetic disk.

This invention was made in view of these points.

The purpose is to develop a magnetic disk drive device that can safely mount magnetic disks.

Means for Solving the Problems This invention provides a disk drive shaft 1 on the bottom surface 10 of the frame 9.
1 and a carrier 14 holding the magnetic head 12,
A cassette holder 31 for holding a hard case 2 containing a magnetic disk 3 is provided.

The frame 9 is provided with a cassette guide 27 that moves the cassette holder 31 forward and backward with respect to the bottom surface of the frame 9 by sliding motion, and the hard case 2 inserted into the cassette holder 31
A sliding body 48 having a locking part 51 that elastically holds the slider 48 is provided, and the sliding body 48 is slidably attached to the cassette holder 31, so that the hard case 2 when the hard case 2 and the sliding body 48 are engaged is provided. A detector 67 is provided to detect the insertion depth of the cassette guide 27, and a drive section 59 is provided which slides the cassette guide 27 and the slider 48 in opposite directions based on a signal from the detector 67.

The hard case inserted into the working cassette holder 31 is elastically held by the locking portion 51 of the sliding body 48.

The detector 67 detects this state and issues a signal to drive the drive unit 5.
9 is driven, and the sliding body 48 and the cassette guide 27 slide in opposite directions. That is, the sliding body 48 pulls the hard case 2 deep into the cassette holder 31, the cassette guide 27 slides in one direction, brings the cassette holder 31 closer to the bottom surface 1o of the frame 9, and moves the magnetic disk 3 toward the disk drive shaft 11. Connect to.

After the work is completed, by driving the drive unit 59, the cassette guide 27 slides in the other direction and moves to the cassette holder 31.
is separated from the bottom surface 10 of the frame 9 and the magnetic disk 3
from the disk drive shaft 11.

Further, a motor 59 is used as a drive part, and the cassette guide 27 and the sliding body 48 are connected to the motor 59 by a crank mechanism 60.
9, it becomes possible to slide the cassette guide 27 and the sliding body 48 using one driving section.

Furthermore, a lock lever 5 that elastically engages with the sliding body 48
5 is displaceably provided on the frame 9, and the cassette guide 27
By providing a pressing part 58 on the cassette holder 31 and an ejection lever on the cassette holder 31, the hard case 2 can be reliably maintained in the pushed state during operation, and after the operation is finished, the lock lever 55 can be retracted by the pressing part 58 of the cassette guide 27. This allows the hard case 2 to be ejected by the ejection lever 34.

Further, the hard case 2 and the sliding body 48 are engaged with each other until the rear edge of the hard case 2 coincides with the front surface of the front panel 26, and at this time the detector 67 is activated. This allows you to insert hard case 2 when inserting hard case 2.
The hard case 2 prevents excessive shiatsu pressure from being applied to the
Insertion is performed.

Example An embodiment of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 11, the disk cassette 1 is a flat hard case 2 containing a magnetic disk 3. The hard case 2 has a recess 5 formed on its front edge 4,
6 and a shutter 7 covering a part of the magnetic disk 3 is biased in the closing direction A and is slidably provided, and openings 8 are formed on the front and back sides of this shirt tough.

As shown in FIG. 2, the bottom surface 10 of the frame 9 has a disk drive shaft 11 driven by a step motor, a carrier 14 that holds a magnetic head 12 and moves along a guide 13, and a carrier 14 that moves the carrier 14. a motor 15 that causes
An arm 19 that holds the pad 16, is urged toward the magnetic head 12 by a spring 17, and is movably held on the carrier 14 by a shaft 18, and a detection lever 22 is rotatably held by a fulcrum 21. There is. Furthermore, protrusions 23 and 24 are formed on the bottom surface 10 of the frame 9 to position and support the hard case 2, and studs 2
5 are erected. A front panel 26 is attached to the front part of the frame 9.

Further, on the bottom surface 10 of the frame 9, a cassette guide 27 having a push button 27a at an end is slidably guided by a stud 25 and biased in one direction by a spring 28. As shown in FIGS. 3 and 4, two inclined grooves 29 are formed on each side of the cassette guide 27, and the inclined grooves 29 are inclined toward the bottom surface 10 of the frame 9 toward the front. Corresponding pair of left and right guide grooves 30
is formed to be orthogonal to the plane of the cassette holder 31.

The cassette holder 31 has a wide open center at the bottom to hold the hard case 2 in and out, and has a support part 32 that supports both sides of the arm 19 and a circular protrusion 33 that projects from both sides. . These projections 33 are fitted into the inclined groove 29, and the two front projections 33 are also fitted into the guide groove 30. Also, the cassette holder 3
On the front side of the cassette holder 31, an ejection lever 34 is urged clockwise by a spring 35 and is rotatably held around a fulcrum 36. An opening portion 38 is formed that protrudes from the bottom.

As shown in FIGS. 2, 8, and 10, the cassette guide 27 is formed with a crank-shaped opening 41 having an inclined groove 39 and an engaging edge 40 in a part of the opening edge. The detection lever 22 includes a bottle-shaped engagement protrusion 42 that fits into the lower opening 41 and a pin-shaped receiving part 43 that projects upward.
and a lock portion 44. As shown in FIGS. 1, 7, and 9, the ejection lever 34 has an escape hole 45 facing the receiving portion 43 and a hook 4 that engages with the locking portion 44.
6 is formed. Furthermore, the cassette holder 3
1, a contact portion 47 facing the front edge of the shirt tough is bent in the recess 5 of the hard case.

As shown in FIGS. 12 to 17, a sliding body 48 is attached to the hard case 2 on the left side of the cassette holder 31.
It is held slidably in the same direction as the loading/unloading direction.

This sliding body 48 has a plate spring 49, a recess 5o and a protruding locking part 51 are formed in the plate spring 49, and a locking hole 52 that engages with the locking part 51 is formed in the hard case 2. is formed on the bottom of the On a mounting plate 53 fixed to the bottom surface 1o of the frame 9, a lock lever 55 having a pawl 57 that engages with a recess 50 is biased counterclockwise by a spring 56 and rotatably held by a shaft 57a. . Mounting plate 53
A stopper 57 for restricting excessive movement of the lock lever 55 is formed therein.

Further, a pressing portion 58 for pressing the lock lever 55 is formed on the cassette guide 27.

A crank mechanism 6 that connects the cassette guide 27 and the sliding body 48 to a motor 59 that is a drive unit fixed to the frame 9
0 consists of a disk 61 driven by a motor 59 and links 62 and 63 that convert the circular motion of the disk 61 into linear motion. The link 62 is connected to the cassette guide 27, and the link 63 is connected to the sliding body 48. A cam 65 is fixed to the zero disc 61, which operates a switch 64 and outputs a stop signal to the drive circuit of the motor 59. There is.

Further, the cassette holder 31 holds a detector 67 that faces a light shielding plate 66 formed on the ejection lever 34.

In such a configuration, FIGS. 1, 2, 3, and 12 show a state in which the cassette guide 27 is locked at the push-in position. That is, as shown in FIGS. 2 and 1, the detection lever 22 rotates clockwise and the engagement protrusion 42 comes into contact with the engagement edge 40.

As shown in FIG. 3, the protrusion 33 of the cassette holder 31 is supported by the upper part of the inclined groove 29 and is positioned at an upper position, and the support part 32 maintains the arm 19 in an upright position. Further, as shown in FIG. 12, the pressing portion 58 of the cassette guide 27 pushes the lock lever 55 counterclockwise. In this state,
When the hard case 2 is inserted through the slit (not shown) in the front panel 26, the ejection lever 34 is pushed by the front edge of the hard case 2 and rotates as shown in FIGS. The shutter 7 is pushed open.

On the other hand, the front edge 4 of the hard case 2 presses the receiving portion 43 and rotates the detection lever 22 counterclockwise about the fulcrum 21 to the disk detection position. As a result, the engagement protrusion 42 is disengaged from the engagement edge 40 as shown by the imaginary line shown in FIGS. 8 and 10. Therefore, as shown in FIGS. 13 and 14, by the time the hard case 2 is pushed in and its rear edge coincides with the front surface of the front panel 26, the locking portion 51 of the sliding body 48 is inserted into the locking hole 51 of the hard case 2. The detector 67 generates a signal due to the operation of the light shielding plate 66 of the ejection lever 34, and the motor 59 rotates in one direction.

That is, the first circular plate 61 rotates clockwise, the link 63 pulls in the sliding body 48 together with the hard case 2, and the link 62 pushes the cassette guide 27 forward. When the cassette guide 27 moves in this way, the cassette holder 31 As shown in FIG. 4, the protrusion 33 approaches the bottom surface 10 of the frame 9 because it is pushed by the upper edge of the inclined groove 29, and when the disc 61 rotates 180 degrees, the sliding body 48 as shown in FIG. is pulled together with the hard case 2, and the recess 5o is locked by the pawl 54 of the lock lever 55. The switch 64, which is turned on by the operation of the cam 65, issues a stop signal to the drive circuit of the motor 59, and the magnetic disk 3 is driven to the disk. It is connected to the shaft 11. In this state, data processing is performed by rotating the magnetic disk 3 and moving the carrier 14.

In this way, when inserting the hard case 2, the fingers do not enter through the slit of the front panel 26, and the hard case 2 can still be inserted automatically, so that excessive finger pressure is not applied to the hard case 2. This can prevent damage to internal mechanisms.

Furthermore, data processing can be performed with the sliding body 48 locked together with the hard case 2 by the lock lever 55.

When the work is finished, a discharge signal is output, and this signal causes the motor 59 to rotate in reverse. Namely.

The disc 61 rotates counterclockwise and draws the cassette guide 27 inward by the link 62. At this time, at the beginning of the rotation of the disc 61, the movement of the link 63 is not transmitted to the sliding body 48. This is because the link 63 is formed with a long hole 63a that engages with the pin 63b provided upright in the link 63. When the cassette guide 27 is pulled in, the protrusion 33 is pushed against the lower edge of the inclined groove 29, so the cassette holder 31
is separated from the bottom surface 10 of the frame 9, the magnetic disk 3 is removed from the disk drive shaft 11, and the support portion 32 raises the arm 19, whereby the pad 16 is separated from the magnetic head 12. On the other hand, as the engaging protrusion 42 slides along the inclined edge 39 and is guided by the engaging edge 40 due to the retracting action of the cassette guide 27, the detection lever 22 returns clockwise as shown in FIG. The cassette guide 27 is locked in the pushed-in state by the engagement with the engaging edge 40, and the lock portion 44 is retracted from the hook 46 as shown in FIG. Further, the cassette holder 31 is connected to the bottom surface 10 of the frame 9.
16, the plate spring 49 of the sliding body 48 locked to the lock lever 55 is warped as shown in FIG.
In the second half of the multiple operations, as shown in FIG.
5 is retracted from the sliding body 48, and the hard case 2
It is discharged by the discharge lever 34 which returns with the force of 5,
Immediately after that, the sliding body 48 is pushed forward by the link 63. Therefore, there is no chance of forgetting to take out the magnetic disk 3.

It is also possible to omit the lock lever 55 and slide the sliding body 48 together with the hard case 2 in the ejection direction using the link 63. In addition, the cassette guide 27 and the sliding body 4
8 may be slid by an electromagnet.

Effects of the Invention Since the present invention is constructed as described above, the hard case that houses the magnetic disk can be automatically and reliably inserted by the drive unit, and the motor is used as the drive unit and this motor is connected to the cassette by a link mechanism. By connecting the guide and the sliding body, a single drive unit can be used, and furthermore, data processing can be performed with the sliding body locked together with the hard case using a lock lever.

In this case, after finishing, the lock lever can be retracted from the sliding body by the pressing part of the cassette guide, and the hard case can be ejected by the ejection lever. By engaging the case and the sliding body, the hard case is inserted while preventing excessive finger pressure from being applied to the hard case when inserting the hard case, thereby preventing damage to the internal mechanism. It has the following effects.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a plan view showing a state in which a disk cassette is not installed, FIG. 2 is a plan view showing a state in which the cassette guide is positioned at the push-in position,
3 and 4 are side views showing the operation of the cassette holder with a part of the frame cut away; FIGS. 5 and 6 are partial plan views showing the opening and closing operation of the shutter of the disc cassette;
Fig. 7 is a plan view showing the disk cassette installed state;
The figure is a plan view showing the state in which the cassette guide is positioned toward the front, Figure 9 is a partially exploded perspective view showing how the ejection lever is attached to the cassette holder, and Figure 10 is the detection lever and cassette guide. FIG. 11 is a perspective view of the disk cassette, and FIGS. 12 to 17 are longitudinal sectional side views showing the operation of the cassette guide and the sliding body. 1...Disk cassette, 2...Hard case, 3
...Magnetic disk, 7...Shutter, 9...Frame. 10...Bottom surface, 11...Disk drive shaft, 12...
-Magnetic head, 14...Carrier, 26...Front panel, 27...Cassette guide, 31...Cassette holder, 34...Ejection lever, 48...Sliding body, 51...Register Stop. 55...Lock lever-157...Stopper, 58...
...Press section, 59...Motor (drive section), 60...
Crank mechanism, 67...Detector 3Z 15 Figure 36 Figure J, JO diagram procedural amendment (May 30, 1985 1, Indication of incident Patent application No. 1986-65998 2, Name of invention Magnetic disk Relationship with the case of the person making the amendment to the drive device 3o Patent applicant 4, agent 107 address 5-9-15 Minami-Aoyama, Minato-ku, Tokyo None 6, amendment to patent application No. 60-65998 Regarding the application, the description in the specification is amended as follows. 1. The claims from page 1, line 3 to page 5, line 13 are amended as shown in the attached sheet. 2. r frame 9 on page 6, lines 15 to 20
"In...installation," should be corrected as follows. "Providing a sliding body 48 having a locking part 51 that resiliently holds the hard case 2 inserted into the cassette holder 31,
This sliding body 48 is slidably attached to the cassette holder 31, and slides in opposite directions in conjunction with the sliding movement of the sliding body 48, and by this sliding movement, the cassette holder 31
A cassette guide 27 is provided on the frame 9 to move the cassette guide 27 forward and backward with respect to the bottom surface 10 of the frame 9. Correct to. "Drive unit 5 that slides the sliding body 48 toward the back of the cassette holder 31 based on the signal from the detector 67, and slides the cassette guide 27 toward the back of the cassette holder 31 when data processing is completed" 4.7. "Sliding body..." on the 10th and 11th lines of the page
Sliding. "The sliding body 48 slides toward the back of the cassette holder 31." ”. 5. Correct "one direction" on page 7, line 13 to "inlet side of cassette holder 31". 6. Correct "After the end of work" in the 17th line of page 7 to "After the end of data processing." 7. Correct "other direction" on page 7, line 18 to "back side of cassette holder 31". 8. On page 10, line 13 and line 14, "formed as..." is corrected to "formed on both sides of frame 9 as...". 9, page 12, lines 3 and 4, “This sliding body 48
. . . ``locking body 49'' is corrected as follows. This sliding body 48 is biased toward the entrance of the cassette holder 31 by a spring (not shown) and has a plate-shaped locking body 49 that is biased inward from the bottom of the cassette holder 31 by a plate spring. , this locking body 49'' 10, page 14, line 6, ``comes off from the engaging edge 40. Therefore'' is corrected as follows. 11, page 14, lines 14 to 16, "Pull in...Push out" .” is corrected to “pull in.” 12. Page 15, line 17, “When the work is finished”
is corrected to `` at the end of r data processing. 13. At the beginning of the r rotation movement in the first line of page 16,” was changed to “
In the case of rotational movement, it is corrected to ``. 14. Correct "plate spring 49" on page 16, line 19 to "locking body 49". 15, page 17, lines 6 and 7, "Pushed forward by the link 63." is corrected to "Returns to the front by the urging force." Attachment 2, Claim 1, a disk cassette is provided in which a magnetic disk is housed in a flat hard case, and a freely movable disk cassette that holds a rotatable disk drive shaft orthogonal to the magnetic disk and a magnetic head is provided on the bottom surface of a frame. a carrier, and a cassette holder that holds the hard case in and out of the cassette holder; a sliding body is provided, and the sliding body is attached to the cassette holder in the same direction as the insertion and removal direction of the hard case, and the insertion depth of the hard case when the sliding body engages with the neck 2. A magnetic disk drive device, characterized in that it is provided with a detector for detecting the number "f'-" in the first cassette, and a drive unit that moves the number "f'-" to the first cassette.2. A disk cassette housed in a hard case is provided, and a rotatable disk drive shaft orthogonal to the magnetic disk and a movable carrier holding a magnetic head are provided on the bottom surface of the frame, and the hard case is held in such a manner that the hard case can be put in and taken out. One cassette holder is provided with a sliding body having a locking part that resiliently holds the hard case inserted to a predetermined depth into the inside of the cassette holder, and this sliding body is attached to the cassette holder as described above. A detector for detecting the insertion depth of the hard case when the sliding body is engaged with the slider, the frame having a cassette guide that moves in the same direction as the insertion and removal direction of the hard case. 1. A magnetic disk drive device, characterized in that it is provided with the motor described in item 1 above. 3. A disk cassette in which a magnetic disk is housed in a flat hard case is provided, and a rotatable disk drive shaft orthogonal to the magnetic disk and a movable carrier holding the magnetic head are provided on the bottom of the frame, A cassette holder that holds a hard case in and out of the cassette holder is provided; The sliding body is inserted into the force set holder in the same direction as the insertion and removal direction of the hard case. When the frame moves toward the bottom surface, it elastically engages with the sliding body Φ
A lock lever that prevents the movement of the sliding body is biased Δ in one direction and is movable with a stopper defining the operating range, so that the lock lever is activated when the cassette guide is operated to separate the cassette holder from the bottom surface of the frame. - A magnetic disk drive device, characterized in that the cassette guide is provided with a suppressing portion for retracting the hard case from the sliding body, and the cassette holder is provided with an ejection lever for ejecting the hard case. 4. A disk cassette in which a magnetic disk is housed in a flat hard case is provided, a rotatable disk drive shaft perpendicular to the magnetic disk and a movable carrier holding a magnetic head are provided on the bottom of the frame, and a front Install a cassette holder behind the panel that holds the hard case so that it can be put in and taken out, and push the hard case inserted into the cassette holder elastically until the rear edge of the hard case matches the front surface of the front panel. A sliding body having a locking part for holding the hard case is provided, the sliding body is attached to the cassette holder in the same direction as the insertion and removal direction of the hard case, and the sliding body is installed in the frame described in 1-1.
E. A detector is provided to detect the insertion depth of the hard case when the hard case is engaged with the sliding body, and the above
A magnetic disk drive device characterized by its length. Procedural amendment (June 19, 1985 Manabu Shiga, Commissioner of the Patent Office2, Title of invention: Magnetic disk drive device 3, Person making the amendment Relationship with the case: Patent issuer: 4, Agent: 107)

Claims (1)

[Claims] 1. A disk cassette in which a magnetic disk is housed in a flat hard case is provided, and a movable disk drive shaft that holds a rotatable disk drive shaft perpendicular to the magnetic disk and a magnetic head is provided on the bottom of the frame. a carrier, a cassette holder for holding the hard case in and out, and for moving the cassette holder forward and backward with respect to the frame by sliding movement in the same direction as the insertion and ejection direction of the hard case on the frame; A guide is provided, and a sliding body is provided that has a locking part that elastically holds the hard case inserted into the cassette holder at a predetermined depth, and the sliding body is inserted into the cassette holder to hold the hard case. Installed so that it can slide freely in the same direction as the case insertion and removal direction,
A detector is provided to detect the insertion depth of the hard case when the hard case and the sliding body are engaged, and a drive for sliding the cassette guide and the sliding body in opposite directions based on a signal from the detector. What is claimed is: 1. A magnetic disk drive device comprising: a magnetic disk drive device; 2. A disk cassette in which a magnetic disk is housed in a flat hard case is provided, and a rotatable disk drive shaft orthogonal to the magnetic disk and a movable carrier holding the magnetic head are provided on the bottom surface of the frame. A cassette holder is provided to hold the hard case in and out, and a cassette guide is provided in the frame to move the cassette holder forward and backward with respect to the frame by a sliding movement in the same direction as the insertion and ejection direction of the hard case, and the cassette guide A sliding body having a locking part that resiliently holds the hard case inserted to a predetermined depth inside the holder is provided, and the sliding body is inserted into the cassette holder in the same direction as the insertion and removal direction of the hard case. Installed so that it can slide freely in the direction of
A detector is provided to detect the insertion depth of the hard case when the hard case and the sliding body are engaged, and a motor whose rotation direction changes according to a signal from the detector is provided, and the cassette guide and the sliding body are connected to each other. A magnetic disk drive device, characterized in that the magnetic disk drive device is connected to the motor by a crank mechanism so as to slide in opposite directions. 3. A disk cassette in which a magnetic disk is housed in a flat hard case is provided, and a rotatable disk drive shaft orthogonal to the magnetic disk and a movable carrier holding the magnetic head are provided on the bottom of the frame, A cassette holder is provided to hold the hard case in and out, and a cassette guide is provided in the frame to move the cassette holder forward and backward with respect to the frame by a sliding movement in the same direction as the insertion and ejection direction of the hard case, and the cassette guide A sliding body having a locking part that resiliently holds the hard case inserted to a predetermined depth inside the holder is provided, and the sliding body is inserted into the cassette holder in the same direction as the insertion and removal direction of the hard case. Installed so that it can slide freely in the direction of
A detector is provided to detect the insertion depth of the hard case when the hard case and the sliding body are engaged, and a drive for sliding the cassette guide and the sliding body in opposite directions based on a signal from the detector. a lock lever that elastically engages with the sliding body to prevent the sliding body from moving in one direction when the cassette holder moves toward the bottom of the frame, and a stopper that limits the operating range. The cassette guide is provided with a pressing portion that is freely displaceable and that retracts the lock lever from the sliding body when the cassette guide is operated when separating the cassette holder from the bottom surface of the frame; A magnetic disk drive device comprising an ejection lever for ejecting the hard case. 4. A disk cassette in which a magnetic disk is housed in a flat hard case is provided, a rotatable disk drive shaft perpendicular to the magnetic disk and a movable carrier holding a magnetic head are provided on the bottom of the frame, and a front A cassette holder that holds the hard case in and out is provided behind the panel, and a cassette guide that moves the cassette holder forward and backward with respect to the frame by sliding movement in the same direction as the insertion and ejection direction of the hard case. a sliding body having a locking part that elastically holds the hard case inserted into the cassette holder until the rear edge of the hard case matches the front surface of the front panel; is attached to the cassette holder so as to be slidable in the same direction as the insertion and removal direction of the hard case, and a detector is provided for detecting the insertion depth of the hard case when the hard case and the sliding body are engaged, 1. A magnetic disk drive device, comprising: a drive section that slides the cassette guide and the sliding body in opposite directions based on a signal from a magnetic disk drive device.