JPH05234222A - Cartridge misinsertion preventing device for disk drive device - Google Patents

Abstract

PURPOSE:To securely prevent misinsertion of a cartridge by making an inclination of the beginning of a shutter opening pin guide groove equivalent to or less than an inclination of a slant surface for misinserting prevention on the side of inserting the cartridge. CONSTITUTION:The inclination theta1 of a slant part 76 on the side of the beginning of the shutter opening pin guide groove 49 formed on a cartridge holder 35 is made to be equivalent to or less than the inclination theta2 of the slant surface 229 for misinserting prevention provided on the side of inserting the disk cartridge 201. Consequently, even when the disk cartridge 201 is inserted into the cartridge holder by taking its side provided with the slant surface 229 as the side of the beginning of the shutter opening pin guide groove 49, a shutter opening pin 46 is not moved because of the difference between the inclinations but is abutted against the cartridge to prevent inserting of the cartridge, thus preventing the misinsertion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge erroneous insertion preventing device in a disk drive device for preventing erroneous insertion of a disk cartridge.

[0002]

2. Description of the Related Art Conventionally, as a disk drive configured to record and / or reproduce on a disk cartridge in which an optical disk, a magneto-optical disk, etc. are rotatably housed in a cartridge consisting of a pair of upper and lower halves,
The applicant of the present application has previously proposed it in Japanese Patent Application No. 2-281829. In such a disc drive, even if the disc cartridge is inserted in the cartridge holder by mistake, the disc cartridge is prevented from being inserted, that is, a cartridge erroneous insertion preventing device is provided.

The cartridge erroneous insertion prevention device is shown in FIG.
As shown in 0, it is provided on one cartridge holding portion 403 side of the cartridge holder 402 into which the disc cartridge 401 is inserted and held. In such a cartridge erroneous insertion prevention device, an erroneous insertion prevention pin 404 for preventing further insertion of the disc cartridge 401 by contacting the disc cartridge 401 inserted into the cartridge holder 402 in the wrong direction is set up at the tip end portion. The incorrect insertion prevention lever 405 is provided. The erroneous insertion prevention lever 405 is provided with an erroneous insertion prevention pin 404 that is set up at its tip end by an extension coil spring (not shown) stretched between the lever 405 and the cartridge holder 402. Always urge in the direction indicated by,
The incorrect insertion prevention pin 404 is attached to the cartridge holder 3
It is designed to be positioned inward of 5.

In the erroneous insertion prevention device thus constructed, when the disc cartridge 401 is inserted into the cartridge holder 402 in the proper orientation as shown in FIG. 30, the front end portion on the insertion side of the disc cartridge 401 is described. Surface 401 formed at one corner
The erroneous insertion prevention pin 404 contacts a. When the disc cartridge 401 is further inserted,
The erroneous insertion prevention pin 404 is rotated outward of the cartridge holder 402 along the inclination of the inclined surface 401a against the elastic force of the tension coil spring, and the cartridge holder 40 of the disc cartridge 401 is rotated.
2 can be inserted.

On the other hand, the disk cartridge 401 is shown in FIG.
Cartridge holder 402 with the front and back opposite to
When it is inserted into the disk cartridge 401, the wrong insertion prevention pin 404 comes into contact with the other corner portion 406 of the front end on the insertion side of the disk cartridge 401, and the insertion of the disk cartridge 401 is prevented.

[0006]

By the way, in a 3.5-inch disk cartridge in which a magneto-optical disk mountable in this disk drive device is housed, an inclined surface for preventing erroneous insertion is located at the upper left in a normal direction. Has been formed. On the other hand, in a 3.5-inch magnetic disk cartridge containing a magnetic disk such as a floppy disk, an inclined surface for preventing erroneous insertion is formed on the upper right. Therefore, when the magnetic disk cartridge accommodating the floppy disk that cannot be mounted in the disk drive device is inserted into the cartridge holder 402 in the proper orientation, the erroneous insertion prevention pin 404 is inserted.
This prevents the insertion of the magnetic disk cartridge.

However, if the magnetic disk cartridge is inserted into the cartridge holder 402 with its front and back reversed, the magnetic disk cartridge will be inserted into the cartridge holder 402. In particular, this disc drive device is provided with an automatic cartridge retracting device that automatically retracts the disc cartridge 401, which has been inserted into the cartridge holder 402, into the drive during the insertion process. When the insertion of the cartridge 401 is prevented, the engagement of the eject plate holding lever has already been disengaged and the loading has already been started, so that the erroneous insertion of the disc cartridge 401 cannot be effectively prevented.

Therefore, the present invention has been proposed in view of such a conventional situation, and provides a cartridge erroneous insertion preventing device in a highly reliable disk drive device capable of reliably preventing erroneous insertion of a disk cartridge. The purpose is to provide.

[0009]

In order to achieve the above object, a cartridge erroneous insertion preventing device in a disk drive device according to the present invention engages with a shutter member of the disk cartridge to open the opening of the disk cartridge. Shutter opening member for moving the shutter member in a direction to move the shutter opening member and the shutter opening member movably supported, and the shutter opening pin is interlocked with an inserting operation of the disc cartridge. And a cartridge holder having a shutter opening pin guide groove formed so as to move the shutter member in a direction in which the opening of the disc cartridge is opened. The tilt angle may be incorrect on the insertion side of the disc cartridge. And it is characterized in that an inclined surface of the inclined angle equal to or less for ingress-preventing.

[0010]

In the cartridge erroneous insertion preventing device in the disk drive device according to the present invention, the inclination angle of the inclined portion on the starting end side of the shutter opening pin guide groove provided in the cartridge holder is erroneous insertion provided on the insertion side of the disk cartridge. When the disc cartridge is inserted into the cartridge holder by mistake, the inclination angle of the inclined surface for prevention is equal to or less than the inclination angle of the shutter opening pin guide groove. The disc cartridge comes into contact with the shutter opening pin facing the shutter opening pin guide groove due to the difference in the inclination angle, and the insertion of the disc cartridge is prevented.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments to which the present invention is applied will be described in detail below with reference to the drawings. The present embodiment is an example in which the present invention is applied to a disk drive device for recording / reproducing on / from an optical disk or a magneto-optical disk. First, a disc cartridge that accommodates an optical disc or a magneto-optical disc mounted in this disc drive device will be described. [1-a] Configuration of Disc Cartridge (FIG. 28) The disc cartridge 201, as shown in FIG.
The optical disc 202 has a disc shape, and the cartridge 203 rotatably accommodates the optical disc 202.

The optical disc 202 is an optical disc, a magneto-optical disc, or the like, and has a signal recording layer on the main surface thereof, and an information signal is written in the signal recording layer by optical or magneto-optical means. And / or can be read. This optical disc 2
In 02, one main surface portion is a signal recording surface.
A chucking hub portion 202a to be chucked by the disc drive device of the present embodiment is provided at the center of one main surface portion of the optical disc 202. The optical disc 202 of this example
Is a magneto-optical disk using a magnetic thin film as a signal recording layer, and has a diameter of 3.5 inches.

The cartridge 203 has a pair of upper and lower half halves 204 and 2 each of which has a square shape and is large enough to accommodate the optical disc 202 therein.
The upper half 204 and the lower half 20
5 and 5 are butted and joined together. And
In the cartridge 203, the optical disc 20 is placed.
2 is stored rotatably.

The lower half 204 of the cartridge 203 has a chucking hub portion 202a provided at the center of the optical disc 202 and a signal recording surface of the optical disc 202 housed in the cartridge 203. Has a first opening 206 for exposing a part of the inner part to the outer part. The first opening 206 is formed as a long hole in the center of the one side 207 side and the other side 208 side of the cartridge 203 in the left-right direction extending from the front side 209 side of the cartridge 203 to the center. ..

The first opening 206 is a disk table of a rotary operation device for rotating the chucking hub portion 202a of the optical disk 202 when the disk cartridge 201 is mounted in the disk drive device. Optical disc 2
The signal recording surface 02 is exposed to an optical pickup device that irradiates the signal recording surface with a laser beam.

On the other hand, a second opening (not shown) is formed in the upper half 205 at a position opposite to the first opening 206 provided in the lower half 204. The second opening is provided at a position closer to the front surface portion 209 side of the cartridge 203, and a part of the other main surface portion of the optical disc 202 is exposed outward along the inner and outer circumferences in the radial direction. It is formed as a rectangular shape that is large enough. The second opening is adapted to expose the other main surface portion of the optical disc 202 to the magnetic head device when the disc cartridge 201 is mounted in the disc drive device.

The front surface 2 of the cartridge 203 is
A magnetic head device and an optical pickup device, which will be described later, easily enter the portions corresponding to the first opening portion 206 and the second opening portion on the 09 side close to each main surface portion of the optical disc 202. Notch recesses 206a and 210a are provided so as to be formed. That is, the thickness of the central portion of the cartridge 203 near the front surface portion 209 is equal to that of the first opening portion 206 and the second portion.
The portions corresponding to the openings are thin.

A shutter member 211 for opening and closing the first opening 206 and the second opening is slidably attached to the cartridge 203. The shutter member 211 is disposed in parallel with the first shutter plate portion 212 that closes the first opening portion 206 of the lower half 204 and is opposed to the first shutter plate portion 212 in parallel with the first shutter plate portion 212. A second shutter plate portion 213 that closes the second opening portion and the first and second shutter plate portions 21.
2, 213 and the connecting piece part 214 which connects the base end sides.

The first shutter plate portion 212 is formed in a rectangular shape which is narrow and long enough to cover the first opening portion 206 of the lower half 204. The tip side of the first shutter plate portion 212 is pressed and supported by a shutter pressing plate 215 attached to the outer surface of the lower half 204, and the first shutter plate portion 212 is prevented from rising from the first cartridge 203. It is prevented.
Further, the connecting piece portion 21 of the first shutter plate portion 212
The first engaging claw 217 for engaging with the first slide guide groove 216 engraved on the outer surface of the lower half 204 is provided on the base end side which is a continuous portion to the No. 4 above. The second shutter plate portion 213 is bent and formed. on the other hand,
The second shutter plate portion 213 is formed as a wide rectangular shape that is large enough to close at least the second opening portion.

Then, the shutter plate portions 212, 21 described above
The connecting piece portion 214 for connecting 3 is the cartridge 20.
It has a width substantially equal to the thickness of No. 3. The connecting piece portion 214 is the front surface portion 20 of the cartridge 203.
The shutter member 21 is slidably contacted along the shutter member 21.
1. Make a stable sliding operation. Then, when the shutter member 211 is slid on the connecting piece portion 214 to open the first opening portion 206 and the second opening portion, the connecting piece portion 214 is placed at a position corresponding to these opening portions. Notch recesses 206a and 210a respectively formed in the half 205 and the lower half 204 are formed with notches that open to the front side. Therefore, the connecting piece portion 214, which is a portion where these cutout portions are formed, is formed.
The narrow portion of the above facilitates the approach of the magnetic head device and the optical pickup device to the optical disk 202 in the close proximity to each other.

In addition, one side edge portion of the connecting piece portion 214, which is a side connected to the first shutter plate portion 212, is
A slide guide claw 219 formed to extend in the same direction as the first shutter plate portion 212 is provided. A tip end side of the slide guide claw 219 is formed to be bent toward the second shutter plate portion 213 side, and a second slide guide groove 216 is formed in parallel with the first slide guide groove 216 on the outer side portion of the lower half 204. It is engaged with the slide guide groove 220. That is, the shutter member 211 has the first
By engaging the first and second engaging claws 217 and 219 with the first and second slide guide grooves 216 and 220, the regulation of the sliding direction along the front surface portion 209 of the first cartridge 203 is performed. At the same time, it is prevented from coming off from the first cartridge 203.

Further, the connecting piece portion 214 is provided with a spring engaging piece 222 for engaging one end side of a torsion coil spring (not shown) arranged in the cartridge 203. The torsion coil spring constantly urges the shutter member 211 in a direction to close the first opening 206 and the second opening. The spring locking piece 222 is bent toward the inside of the cartridge 203 so as to be substantially parallel to the first and second shutter plate portions 212 and 213, and the twisted portion is formed at the tip thereof. One end of the coil spring is locked. The other end of the torsion coil spring is locked at the corner of the front portion of the cartridge 203.

The shutter member 2 thus constructed
Reference numeral 11 is movable in the direction of arrow C in FIG. 28 over the position where the first opening 206 and the second opening are closed and the position where these openings are opened. There is. Then, when the shutter member 211 is moved and operated by a shutter opening pin or the like of the disk drive device, the shutter opening pin is fitted into the front surface portion 209 of the cartridge 203, and the first opening portion 206 and the above A shutter opening member fitting portion 224 for holding the second opening portion in a state where the lid is opened is cut out. This shutter opening member fitting portion 224
Is formed as a notch groove at a position where one side edge of the connecting piece portion 214 of the shutter member 211 faces when the first opening 206 and the second opening are opened. Has been done.

Further, the lower half 204 has a pair of positioning pins with which positioning pins for positioning the horizontal mounting position of the disc cartridge 201 are engaged when the disc cartridge 201 is mounted in the disc drive device. Engagement holes 225 and 226 are provided. Further, in the lower half 204, an erroneous erasure prevention member 227 for selecting whether to write an information signal to the optical disc 202 is attached in the vicinity of the one positioning pin engagement hole 226. .. Further, a cartridge pull-in pin fitting hole 228 into which the disc cartridge pull-in pin provided in the loading mechanism of the disc drive device is fitted is formed in the front side of one side surface portion 207 of the cartridge 203. There is.

Next, a magnetic disk cartridge containing a magnetic disk which should not be originally mounted in the disk drive device will be described. [1-b] Configuration of Magnetic Disk Cartridge (FIG. 29) The magnetic disk cartridge 301 is configured by housing a magnetic disk 302 such as a so-called floppy disk in a cartridge 303, as shown in FIG. The magnetic disk 302 is a 3.5 inch diameter disk substrate made of a flexible thin synthetic resin,
It is formed by forming a magnetic recording layer. The cartridge 303 has substantially the same shape and size as the cartridge 203 in which the optical disc 202 is housed. A shutter member 311 is also slidably attached to the cartridge 303. The shutter member 311 has a shutter plate portion 313 having an opening 318 formed therein. And this shutter member 31
The slide 1 slides the opening 318 to a position facing the recording / reproducing opening 310 formed in the cartridge 303 to open the recording / reproducing opening 310, and The opening 318 is located so as not to face the recording / reproducing opening 310 to close the recording / reproducing opening 310.

[2] Configuration of Disk Drive Device (FIG. 1)
To FIG. 6) Next, the configuration of a disk drive device that uses the disk cartridge 201 that houses the above-described optical disk 202 as a recording medium will be described.

This disc drive device is mounted so as to house the disc cartridge 201 therein, and is provided with a mechanism and means sufficient for recording and / or reproducing an information signal on the optical disc 202. Has been done. That is, in this disc drive device, the disc cartridge 201 is mounted in a predetermined cartridge mounting portion 1 and the optical disc 202 is mounted.
A disk loading mechanism 3 for mounting the disk on the disk table of the disk rotation operation device 2, and an optical disk 202 mounted on the disk table and rotated.
The optical pickup device 4, which is radially transferred over the inner and outer circumferences of the optical disc 202 to record and / or reproduce information signals on the optical disc 202, and the optical disc 202.
A mechanism such as a magnetic head device 5 is provided for applying an external magnetic field when an information signal is recorded on.

[2-a] Configuration of Cartridge Mounting Section, Disk Rotation Operating Device, and Optical Pickup Device (FIGS. 1 to 3) The cartridge mounting section 1 is, as shown in FIGS. 1 to 3,
It is configured to have a chassis substrate 6 on which mechanical parts such as a transfer mechanism of the disk rotation operating device 2 and the optical pickup device 4 are arranged. That is, the cartridge mounting portion 1
The disc cartridge 2 is provided on the upper surface side of the chassis substrate 6.
01 is configured to be mounted. Disc cartridge positioning pins 7 and 8 that engage with the positioning pin engagement holes 225 and 226 provided in the disc cartridge 201 are planted in the cartridge mounting portion 1.
When the disc cartridge 201 is mounted in the cartridge mounting portion 1, the disc cartridge positioning pins 7 and 8 have the positioning pin engaging holes 225 and 225.
By engaging with 226, the cartridge mounting portion 1 is positioned and mounted at a predetermined mounting position. Further, the cartridge mounting portion 1 is provided with height reference pins 7a and 8a for holding the disc cartridge 201 at a predetermined height with respect to the chassis substrate 6.

The cartridge mounting portion 1 is provided at a substantially central portion of the chassis substrate 6 which constitutes the cartridge mounting portion 1.
Disk rotation operating device 2 for rotating the optical disk 202 of the disk cartridge 201 mounted on the disk
Are arranged. The disk rotation operating device 2 is mounted on the lower surface side of the chassis 6 and has a drive motor 9 on the upper surface side of the chassis 6 in which a drive shaft serving as a spindle shaft 10 is projected. The spindle shaft 1
The disk table 11 on which the optical disk 202 is placed is integrally attached to the front end side of 0.
The optical disc 2 is mounted on the disc table 11.
A magnet 12 for attracting a disk is provided so that the chucking hub portion 202a of No. 02 can be held by a magnetic attraction force.

An optical pickup device 4 is arranged on the chassis substrate 6. The optical pickup device 4 is arranged so that the objective lens 13 for condensing and emitting the laser beam is opposed to the signal recording surface of the optical disc 202 mounted on the disc table 11. That is, the optical pickup device 4 is supported by the pair of feed guide shafts 15 and 16 which are suspended in the optical pickup device mounting hole 14 formed at the substantially central portion of the chassis substrate 6. The optical pickup device 4 supported in this manner is composed of a pair of optical pickup device driving magnets 17 and 18 and a driving coil 19 which are arranged in the optical pickup device mounting hole 14 and is a so-called linear motor. By means of the device, it is possible to carry out a radial transfer operation along the feed guide shafts 15 and 16 over the inner and outer circumferences of the optical disc 202.

[2-b] Configuration of Magnetic Head Device and Vertical Moving Mechanism of Magnetic Head Device (FIGS. 1 to 3 and 7 to 8) The optical pickup device 4 is synchronized with the optical pickup device 4. A magnetic head device 5 that is radially transferred and operated is connected over the inner and outer circumferences of the optical disk 202. As shown in FIG. 7, the magnetic head device 5 has a magnetic head 20 having a coil for generating a magnetic field for applying a magnetic field of a predetermined intensity to the signal recording layer of the optical disk 202. The magnetic head 20 is attached to and supported by a magnetic head moving frame member 21 that is movably attached to a magnetic head elevating frame member of a magnetic head device vertical movement mechanism described later.

The frame member 21 for moving the magnetic head includes:
A distance sensor (not shown) is provided to keep the distance between the magnetic head 20 and the optical disk 202 constant. As shown in FIG. 3, the magnetic head moving frame member 21 is provided with a pair of connecting members 21a and 21b that hang down toward the optical pickup device 4 side, and the lower end sides of these connecting members 21a and 21b are provided. It is adapted to be connected to the optical pickup device 4.
Therefore, the magnetic head moving frame member 21 is transferred in the radial direction over the inner and outer circumferences of the optical disk 202 in synchronization with the optical pickup device 4, and the magnetic head 20 is always moved by the optical head 20. It is opposed to the objective lens 13 of the optical pickup device 4 via the disc 202.

The magnetic head device 5 constructed in this manner is operated by the magnetic head device vertical movement mechanism 22 so as to be brought into contact with and separated from the main surface portion of the optical disk 202 in a substantially vertical direction. The magnetic head device vertical movement mechanism 22 includes a magnetic head elevating frame member 23 that supports a magnetic head moving frame member 21 provided with the magnetic head 20, and the magnetic head elevating frame member 23 is the optical type. The magnetic head elevating and lowering frame member up-and-down lever 24 is operated to move toward and away from the main surface of the disk 202 in a substantially vertical direction.

The magnetic head elevating frame member 23 is on the chassis substrate 6 and the disk cartridge 2
The pair of lifting shafts 25 and 26 are planted in a position where they do not come into contact with 01, so that the vertical direction, that is, arrow D in FIG.
It is movably supported in the contact and separation direction with respect to the chassis substrate 6. On the side of the magnetic head elevating frame member 23 facing the optical pickup device 4, the axial direction is parallel to the main surface portion of the optical disc 202, and the axial direction is the optical disc 202. A pair of support shafts 27 and 28 are attached in the radial direction. The magnetic head moving frame member 21 is attached to the support shafts 27 and 28 along the axial direction of the support shafts 27 and 28 indicated by arrow E in FIG. 7, that is, in the radial direction of the optical disc 202. It is movably mounted. In addition, at a position in the vicinity of the one elevating shaft 26 of the magnetic head elevating frame member 23, a sliding contact is made with a magnetic head elevating frame member vertical movement lever 24 for vertically moving the magnetic head elevating frame member 23. Elevating engagement pins 29 that engage with each other are provided. This lifting engagement pin 2
Reference numeral 9 denotes a lifting / lowering engagement pin mounting member 30 provided so as to hang down from one side surface of the magnetic head lifting / lowering frame member 23.
It is attached to the tip side of.

The magnetic head elevating / lowering frame member up / down lever 24 for slidingly engaging the elevating / lowering engaging pin 29 to vertically move the magnetic head elevating / lowering frame member 23 is provided with the up / down engaging pin 29. At a position corresponding to, by the support shaft 31, with the support shaft 31 as the center, as shown by an arrow F in FIG.
It is rotatable and is supported on the chassis substrate 6. This magnetic head lifting frame member vertical movement lever 24
Is composed of a fan-shaped sliding contact portion 32 which is slidably brought into contact with the chassis substrate 6 and operated, and a vertical movement guide portion 33 which is formed to rise from the sliding contact portion 32. The sliding contact portion 32 comes into point contact with the chassis substrate 6 so that the sliding contact portion 32 can easily slide with respect to the chassis substrate 6. 32a is provided. Further, a lever operation pin 34 that is fitted into a magnetic head elevating frame member vertical movement lever operation member provided on an eject plate of the disk loading mechanism 3, which will be described later, is planted in the sliding contact portion 32.

The up-and-down movement guide portion 33 is configured such that the upper end portion of the rising wall is slidably engaged with the elevating engagement pin 29, and the parallel portion 33a parallel to the chassis substrate 6 and the parallel portion 33a. It is composed of an inclined portion 33b inclined from the parallel portion 33a toward the sliding contact portion 32 side. That is, in the state in which the elevating engagement pin 29 is engaged with the parallel portion 33a, that is, in the eject state, as shown in FIG.
The magnetic head lifting frame member 23 is used for the optical disk 2
02, and is held at a position where the magnetic head 20 is not brought into contact with the disk cartridge 201 at least when the disk cartridge 201 is inserted. On the other hand, as shown in FIG. 8, in the state in which the raising / lowering engaging pin 29 is engaged with the lower end side of the inclined portion 33b, that is, in the loading state, the magnetic head raising / lowering frame member 23 is the optical disc. At a position close to 202, the magnetic head 20 is held at such a height that a magnetic field can be applied to the signal recording layer of the optical disk 202.

Accordingly, the frame member 21 for moving the magnetic head is attached to the frame member 23 for raising and lowering the magnetic head so as to be transferable in the radial direction over the inner and outer circumferences of the optical disk 202. The engaging pin 2 for raising and lowering provided on the frame member 23 for raising and lowering the magnetic head by rotating the magnetic head raising and lowering frame member vertical movement lever 24.
By slidingly engaging the parallel portion 33a and the inclined portion 33b with each other, it is possible to make contact and separation operations in a direction substantially perpendicular to the signal recording surface of the optical disc 202.

At a position near the other lifting shaft 25 of the magnetic head lifting frame member 23, the magnetic head lifting frame member 23 connects the magnetic head moving frame member 21 to the optical type. When moved to a position close to the disk 202, the magnetic head lifting frame member 23
An engaging surface 23a for engaging with a magnetic head device holding mechanism, which will be described later, for holding the magnetic head device at the height position is provided.
The engagement surface 23a is the frame member 2 for moving the magnetic head.
1 is formed as an inclined surface on the side opposite to the side on which the chassis substrate 6 is inclined.

[2-c] Configuration of disk loading mechanism (FIGS. 1 to 6, 9 to 25, and 2)
7) As shown in FIGS. 1 to 6, the disc loading mechanism 3 for loading the disc cartridge 201 into the cartridge mounting portion 1 has the disc cartridge 201 mounted in the disc drive device.
A cartridge holder 35 into which the cartridge holder 35 is inserted and held, a cartridge holder support plate 36 that supports the cartridge holder 35, and an ejector that vertically moves the cartridge holder 35 relative to the cartridge mounting portion 1 and ejects the disc cartridge 201. The eject plate 37 for moving and moving the eject plate 37 to a position and the eject plate slide drive mechanism 38 for sliding the eject plate 37 are provided.

As shown in FIGS. 5, 9 and 10, the cartridge holder 35 is formed in a substantially flat plate shape having a size large enough for the disc cartridge 201 to be inserted and held therein. Cartridge holding portions 39, 40 having a substantially U-shaped cross section for holding the disk cartridge 201 are formed. Vertically moving guide pins 41, 42 and 43, 44 are provided on the outer surface of each of the cartridge holding portions 39, 40 so that a pair of the vertically moving guide pins 41, 42 and 43, 44 are provided on a bulging portion of which a part of the outer surface extends outward. .. In addition,
These vertical movement guide pins 41, 42, 43, 44 are adapted to be inserted and engaged in vertical movement guide grooves provided in a cartridge holder support plate 36 and an eject plate 37, which will be described later.

A shutter opening member 47 having a shutter opening pin 46 for opening the shutter member 211 of the disc cartridge 201 inserted into the cartridge holder 35 is provided on the upper plate portion 45 of the cartridge holder 35. There is. The shutter opening member 47
Is formed as a plate-like body having a substantially rectangular plane shape in which both the front end portion and the rear end portion are arcuate, and has a slide groove 48 having a long hole extending from the base end portion to the substantially central portion. ing. In the slide groove 48, the cartridge holder 3
A guide pin 7 having a disk at the tip end fixed to the shaft 5
5 are adapted to be engaged. Therefore, the shutter opening member 47 is movable along the slide groove 48 with the guide pin 75 as a fulcrum.

The shutter opening pin 46 provided on the shutter opening member 47 is provided upright at the tip and has a shutter opening pin guide groove 49 notched as a slit in the upper plate portion 45 of the cartridge holder 35. It hangs down in the cartridge holder 35 through.
The shutter opening pin guide groove 49 is inserted into the cartridge holder 35 and the disc cartridge 20.
The shutter member 211 of No. 1 is used for the disc cartridge 2
It is formed so as to draw a locus that opens in conjunction with the insertion operation of 01. That is, the shutter opening pin guide groove 49 is provided with the inclined portion 76 provided on the start end side which is inclined with respect to the insertion direction of the disc cartridge 201 (indicated by the line X in FIG. 27) and the insertion direction of the disc cartridge 201. And a straight portion 77 provided on the end side substantially parallel to the.

The inclination angle θ ₁ of the inclined portion 76 (the angle formed by the insertion direction of the disc cartridge 201) is the same as when the disc cartridge 201 is inserted into the cartridge holder 35 with the front side and the back side reversed and when a magnetic disc such as a floppy disc is used. When the magnetic disk cartridge 301 accommodating the disk 302 is inserted into the cartridge holder 35, these are surely excluded, that is, the inclination angle is set so as to prevent erroneous insertion. That is,
The inclination angle θ ₁ of the inclined portion 76 is such that the inclined surface 22 for preventing erroneous insertion is provided at one side edge portion on the insertion side of the disk cartridge 201 and the magnetic disk cartridge 301.
9,304 tilt angle θ ₂ (disc cartridge 20
The angle formed by the insertion direction 1) is equal to or less than that. Therefore, the disc cartridge 201
Even when the cartridge is inserted into the cartridge holder 35 with the front and back opposite, the tilt angle θ of the tilted surface 229 for preventing erroneous insertion
_{Since 2} is shallower than the inclination angle θ ₁ of the inclined portion 76,
The disc cartridge 201 collides with the shutter opening pin 46 and cannot enter the cartridge holder 35 any more. It should be noted that when the disc cartridge 201 hits the shutter opening pin 46, the eject plate holding lever 103, which will be described later, is not yet in the disengaged state, so that the erroneous insertion of the disc cartridge 201 can be prevented. Similarly, erroneous insertion in the magnetic disk cartridge 301 can be prevented.

On the base end side of the shutter opening pin 46,
A shutter opening pin escape prevention member 50, which is a shutter opening pin riding prevention means for preventing the user from riding on the shutter member 211, is provided. The shutter release pin escape prevention member 50 is provided in the shutter release pin guide groove 4
It is formed as a so-called washer having an annular shape large enough to straddle 9, and is provided by being inserted through the shutter opening pin 46 and in contact with the inner surface portion 45b of the upper plate portion 45. As a result, the position of the shutter opening pin 46 is regulated with respect to the shutter opening pin guide groove 49 by the shutter opening pin escape prevention member 50, and the inside of the shutter opening pin guide groove 49 is located outside the cartridge holder 35. It can be moved without being pushed to the side. Therefore, the shutter opening pin 46 is surely brought into sliding contact with the front portion 209 of the cartridge 203, and the shutter member 211 is opened without riding on the shutter member 211.

In the shutter opening member 47 constructed as described above, the first tension coil spring 51 moves the shutter opening pin 46 indicated by the arrow G in FIG. 5 to the insertion / removal side of the disc cartridge 201. Is biased to rotate in the direction. That is, as shown in FIG. 9, one end of the first tension coil spring 51 is locked to the first spring locking piece 52 formed by cutting and raising the shutter opening member 47, and the other end thereof is described later. The cartridge pull-in operation lever 57 is formed by cutting and raising the sixth.
The shutter opening pin 46 is positioned at the starting end position of the shutter opening pin guide groove 49, that is, the initial position by being locked by the spring locking piece 79.

Further, the cartridge holder 3 is further added.
The disk cartridge 201
When the disc is inserted into the cartridge holder 35, the optical disc cartridge 201 starts from the middle position.
A disc cartridge retracting mechanism 53 for forcibly retracting the disc into the loading position is provided. The disc cartridge retracting mechanism 53 has a cartridge retracting member 55 having a cartridge retracting pin 54 that is inserted into and engages with a cartridge retracting pin fitting hole 228 provided in the disc cartridge 201, and the cartridge retracting member 55 is advanced and retracted. It is composed of a cartridge retraction operation lever 57 to be operated.

The cartridge retracting member 55 is engaged with a pair of guide shafts 61 and 62 which are erected on the upper surface portion 45a of the upper plate portion 45 of the cartridge holder 35, as shown in FIG.
As indicated by the middle arrow I, the disk cartridge 20
The forward / backward operation can be performed in the insertion direction of the cartridge holder 35 of No. 1 above. That is, at the positions corresponding to the guide shafts 61 and 62 of the cartridge retracting member 55, there are provided advancing and retracting operation guide grooves 63 and 64 which are cam grooves having a rear end side bent and having a long hole shape. The guide shafts 61 and 62 are inserted into and engaged with the guide shafts 63 and 64 so that the cartridge retraction member 55 can be moved forward and backward. The advance / retreat operation guide grooves 63, 64
When the disc cartridge 201 to be inserted into the cartridge holder 35 is in the initial state before the locked eject plate holding lever 103 is released, the disc cartridge 201 is inserted into the cartridge holder 35 so that the cartridge pull-in pin 54 does not come into contact with the disc holder 201. The cartridge pull-in pin 54 is located outside the cutout 80.
And the eject plate holding lever 103
Immediately after being removed, the cartridge pull-in pin 54 is made to jump into the cartridge pull-in pin fitting hole 228 without coming into contact with the cartridge holder 35 or the like, and then the disc cartridge 201 is drawn to the rear end side of the cartridge holder 35. Is formed to draw.

That is, the advancing / retreating operation guide grooves 63, 6
In the initial state before the disc cartridge 201 is inserted into the cartridge holder 35, the bent portions 63a and 64a of the cartridge 4 are positioned so that the cartridge retracting pin 54 is located outside the cartridge holder 35, and the disc cartridge 201 is ejected. Plate holding lever 10
Immediately after removing 3, the cartridge pull-in pin 54 is inserted and engaged with the cartridge pull-in pin fitting hole 228. On the other hand, the forward / backward operation guide groove 6
The straight portions 63b and 64b of the discs 3 and 64 serve to pull the disc cartridge 201 in the disc insertion direction so that the cartridge retracting member 55 does not come into contact with the cartridge holder 35.

An advancing / retreating operation engaging pin 69 of the cartridge retracting lever 57 for advancing / retreating the cartridge retracting member 55 is provided at one end side of the cartridge retracting member 55 which is the front side of the cartridge holder 35. Engagement holes 67 for engagement are provided.
The engaging hole 67 is a slotted notch extending from one side edge of the cartridge retracting member 55 in a direction substantially orthogonal to the insertion direction of the disc cartridge 201 so as to cut out this one side edge portion to an intermediate position. It has been. On the other hand, on the other end side of the cartridge retracting member 55, an extending portion 5 formed by folding back to the insertion / removal side of the disc cartridge 201.
6 is provided. The extending portion 56 has a step portion 59 in the middle thereof, and the tip end side of the extending portion 56 faces the outer surface side so as to face outward from the cutout portion 80 formed in the cartridge holding portion 40 of the cartridge holder 35. It is bent and formed. A cartridge pull-in pin 54 for pulling the disc cartridge 201 into the cartridge holder 35 is planted at the tip of the extending portion 56.

The distance y in the disc insertion direction from the center of the cartridge pull-in pin 54 to the step surface 59a of the stepped portion 59 of the extending portion 56 is defined by the front face 209 of the disc cartridge 201 to the cartridge pull-in pin fitting hole 228. The distance is y = x + α with respect to the distance x to the center in the disc insertion direction. That is, the distance of y is set to be slightly longer than the distance of x. As a result, the front surface portion 209 of the disc cartridge 201 comes first in the step surface 5 of the extending portion 56.
After coming into contact with 9a, the cartridge pull-in pin 54 will enter the cartridge pull-in pin fitting hole 228. Therefore, the cartridge pull-in pin 54 is surely engaged with the disk cartridge 20.
1 can be reliably pulled inward of the cartridge holder 35. Note that α in the above formula changes depending on the diameter of the cartridge pull-in pin 54.

The cartridge retracting operation lever 57
Is formed as a flat plate having a substantially Y shape in plan view, and the substantially central portion thereof is rotatably supported by the upper surface portion 45a of the upper plate portion 45 of the cartridge holder 35 by the third support shaft 68. The cartridge retraction operation lever 57 has a so-called three-pronged shape having leg portions 58, 59, 60 extending in three directions centering around the third support shaft 68 and having different lengths. The longest leg 58 of that length
An advance / retreat operation engaging pin 69 that engages with the engaging hole 67 of the cartridge retracting member 55 is planted at the tip of the. And at the tip of the second longest leg 59,
A rotation operation engaging pin 72 for engaging with an eject plate 37 described later and rotating the cartridge retracting operation lever 57 by the eject plate 37 is planted. Further, a sixth spring locking piece 79 is formed on the leg portion 59 by cutting and raising the other end portion of the first tension coil spring 51 stretched between the leg opening 59 and the shutter opening member 47. ing. A fourth spring locking piece 71 for locking one end of a second tension coil spring 70 for sliding the cartridge retracting member 55 in the insertion direction of the disc cartridge 201 is provided at the tip of the remaining leg portion 60. It is cut and raised.

The second tension coil spring 70 whose one end is locked to the fourth spring locking piece 71 is provided in a direction substantially orthogonal to the insertion direction of the disc cartridge 201 into the cartridge holder 35. That is, between the fifth spring locking piece 73 formed by cutting and raising to the one side edge of the cartridge holder 35 on the disc insertion / removal side and the fourth spring locking piece 71 of the cartridge retraction operation lever 57, The second tension coil spring 70 is stretched so that the second tension coil spring 70 is substantially orthogonal to the insertion direction of the disc cartridge 201. Therefore, the cartridge retraction operation lever 57 is pivoted by the second tension coil spring 70 in the direction for moving the cartridge retraction member 55 in the insertion operation direction of the disc cartridge 201 as shown by the arrow J in FIG. It is energized. In this way, if the second tension coil spring 70 for forcibly retracting the disc cartridge 201 is arranged in a direction substantially orthogonal to the inserting direction of the disc cartridge 201, the magnetic head provided in the cartridge holder 35. The notch shape of the second notch portion 84 facing the device 5 can be made large, and a sufficient space can be secured in the magnetic head device 5. Further, since the distance between the rotation fulcrum of the cartridge retraction operation lever 57 and the fourth spring locking piece 71 is short, the displacement amount of the second tension coil spring 70 can be reduced. Therefore, the disc cartridge 201 can always be pulled into the cartridge holder 35 with a force that is almost constant.

The second tension coil spring 70 is used.
In the initial state in which the carriage is stretched, the cartridge pull-in pin 54 of the cartridge pull-in member 55 engaged with the cartridge pull-in operation lever 57 is located at a predetermined loading position. Further, in a region of the upper plate portion 45 of the cartridge holder 35 where the rotation operation engaging piece 72 is moved by the rotation of the cartridge retraction operation lever 57, the rotation operation engaging piece 72 is being moved. A collapse prevention portion 74 is provided to prevent the cartridge holder 35 from falling inside. The collapse prevention portion 74 is provided on the upper surface portion 45 of the upper plate portion 45.
a is formed so as to project upward.

The magnetic head device 5 faces the upper plate portion 45 of the cartridge holder 35, and the first cutout portion 83 facing the eject plate holding lever for holding the eject plate 37, which will be described later, at the eject position. The second cutout portion 84 is formed. The inner surface portion 45b of the upper plate portion 45 of the cartridge holder 35 has a structure shown in FIG.
As shown in FIG. 11, the shutter opening pin escape prevention member 50 provided on the shutter opening pin 46 is pushed down by pushing down the disk cartridge 201 inserted into the cartridge holder 35 toward the disk table 11.
Cartridge depressing member 89 for preventing riding up
Are formed so as to project. The cartridge depressing member 89 is provided at a position near the shutter opening pin 46 at the initial position, and is formed so as to have a protruding amount at least equal to or larger than the plate thickness of the shutter opening pin escape prevention member 50. It is ensured that the disk cartridge 201 is prevented from riding on the shutter opening pin escape prevention member 50.

Further, the upper plate portion 45 of the cartridge holder 35 is provided with a cartridge insertion position for regulating the position of the disk cartridge 201 inserted into the cartridge holder 35 so as not to be inserted further inward than the loading position. Regulation members 90 and 91 are provided. The cartridge insertion position regulating members 90, 9
1 is provided along the rear edge of the upper plate portion 45 in the vicinity of the open edge of the second cutout portion 84 so as to be bent so as to hang inward of the cartridge holder 35. There is. Further, a notch 80 is provided on the outer surface of one of the cartridge holders 40 of the cartridge holder 35. The notch 80 is a position where the cartridge pull-in pin 54 escapes outward so that the disc cartridge 201 inserted into the cartridge holder 35 and the cartridge pull-in pin 54 do not come into contact with each other when in the eject state. It is for making it.

As shown in FIG. 4, the cartridge holder support plate 36 for supporting the cartridge holder 35 is formed in a housing size large enough to hold the cartridge holder 35 therein, and both sides facing each other. The portion has cartridge holder support walls 93 and 94 that support the cartridge holder 35 so as to be vertically movable. These cartridge holder support walls 93 and 94 have vertical movement guide pins 4 provided on the cartridge holder 35.
Vertical movement guide grooves 95, 97 and 96, 98 into which 1, 42, 43, 44 are insertedly engaged or slidably engaged are provided. These vertical movement guide grooves 95, 96, 97, 9
Vertical movement guide grooves 95, 97 provided on the insertion / removal side of the disc cartridge 201 among the eight are parallel to the spindle shaft 10 of the disc rotation drive device 2 as a width sufficient to insert the vertical movement guide pins 41, 43. It is cut out as a slit groove. On the other hand, one of the vertical movement guide grooves 96 and 98 is formed as a wide groove and is also cut out in parallel with the spindle shaft 10 of the disk rotation drive device 2. It should be noted that in the vertically movable guide grooves 96 and 98 formed to have a large width, the inward vertically movable guide pins 42 and 44 are provided on the rear side side edges 96a and 98a of the vertically movable guide grooves 96 and 98, respectively. It is designed to be in sliding contact with and engaged with. That is, the vertical movement guide pins 41, 43 on the insertion / removal side of the disc cartridge 201 are inserted into and engaged with the vertical movement guide grooves 95, 97 opposed thereto, and the vertical movement guide pins 42, 44 on the inner side are the other side. The vertical movement guide grooves 96, 98 are slidably engaged with one side edges 96a, 98a.

The vertical guide grooves 95, 96,
Cartridge holder support wall 9 provided with 97 and 98
Mounting portions 99, 100 and 101, 102 for fixing the cartridge holder supporting plate 36 to the chassis substrate 6 are provided at both end edges on the lower end side of 3, 94 so as to extend inward. There is. That is, the cartridge holder support plate 36 is provided with the mounting portions 99 and 10 described above.
0, 101, 102 are fixed to the chassis substrate 6 by being screwed to the chassis substrate 6.

Further, the cartridge holder support plate 36
An eject plate holding lever 103 for holding an eject plate 37, which will be described later, at an eject position against the biasing force of the tension coil spring is rotatably attached to this. The eject plate holding lever 103 is pivotable by supporting the base end side of the fifth support shaft 104. Then, the eject plate holding lever 10
An engaging claw 103a that engages with the eject plate locking member provided on the eject plate 37 and holds the eject plate 37 at the eject position is provided on the tip end side of the eject plate 3. Further, an eject plate holding lever turning pin 105 for turning the eject plate holding lever 103 is planted at the base end portion provided with the engaging claw 103a. The eject plate holding lever pivot pin 105 is suspended in the cartridge holder 35 via a cutout portion 83 that is open to one side of the cartridge holder 35. The tip of the eject plate holding lever turning pin 105 is hung down at least to a position where it comes into contact with the disc cartridge 201 inserted into the cartridge holder 35.

Then, the eject plate holding lever 10
3 is a second torsion coil spring 106, as shown by an arrow L in FIG.
05 is rotationally biased in a direction in which the disc 05 is moved in a direction against the insertion operation direction of the disc cartridge 201.
That is, one end of the second torsion coil spring 106 is locked to the base end of the eject plate holding lever pivot pin 105, and the other end is cut and raised on the cartridge holder support plate 36. It is locked to the eighth spring locking piece 107. Then, when the engagement between the locking claw 103a and the eject plate locking member is released, the eject plate holding lever 103 has the lever rotation preventing piece 103b formed by cutting and raising the eject plate holding lever 103. Is locked to the cartridge holder support plate 36 so that its rotation is restricted.

The cartridge holder support plate 36 is
The third notch 108 that a part of the cartridge retracting member 55 faces, the fourth notch 109 that the magnetic head device 5 faces, and an eject plate 37 described later.
Eject plate sliding pins 113, 1 for sliding the disk cartridge 201 in the insertion / removal direction.
14, 116 are provided. By disposing the second tension coil spring 70 substantially perpendicular to the insertion direction of the disk cartridge 201, the fourth notch 109 has an opening area large enough for the magnetic head device 5 to move up and down. Has been done.

The eject plate 37 is slidably attached to the cartridge holder support plate 36 thus constructed. The eject plate 37
As shown in FIG. 6, a flat plate-shaped slide portion 117 that slides in sliding contact with the cartridge holder support plate 36.
And rising walls 118 and 119 provided on both sides of the slide portion 117 facing each other so as to hang down toward the disk rotation drive device 2 side. This slide part 11
7, ejector plate slide pins 113, 114, 116 provided on the cartridge holder support plate 36 are provided.
Slide grooves 120, 121, 1 into which each of which is inserted and engaged
23 are provided. These slide grooves 120, 12
1, 123 are the eject plate slide pins 11
At the positions corresponding to 3, 114 and 116 respectively, elongated holes are formed in the insertion / removal direction of the disc cartridge 201.

The slide portion 117 has an eject plate locking member 12 which engages with an eject plate holding lever 103 provided on the cartridge holder support plate 36.
4 are provided. This eject plate locking member 124
Is the engaging claw 103 of the eject plate holding lever 103.
It is formed as a cylindrical body large enough to be locked to a and is rotatably attached to the slide portion 117 by a screw 125 through a hole provided in the center of the cylindrical body.

Further, the slide portion 117 has a fifth cutout portion 126 facing a part of the cartridge retracting member 55, a sixth cutout portion 127 facing the magnetic head device 5, and the cartridge holder. A seventh cutout portion 128 is provided so as to face the rotation operation engagement piece 72 of the cartridge pull-in operation lever 57 provided at 35. And these notch parts 126, 127, 128
Of the sixth cutout portion 127, one inward side edge 127a into which the disc cartridge 201 is inserted,
When the magnetic head device 5 is provided at the recording position close to the optical disc 202 so as to project into the cutout portion 127, the magnetic head device 5 is moved to a predetermined position with respect to the signal recording surface of the optical disc 202. A magnetic head device holding mechanism 110 for holding at a height is provided. The magnetic head device holding mechanism 110 is composed of an elastically displaceable leaf spring 111 whose front end is bent and formed in a substantially U shape, and a substantially U-shaped top on the front end side is the magnetic head lifting frame member. When the magnetic head device 5 is moved to the recording position close to the optical disk 202, the magnetic head device 5 presses and holds the magnetic head elevating and lowering frame member 23. It has become. The leaf spring 111 is fixed to the eject plate 37 by fixing the base end portion with a screw 112. Further, the one side edge 128a of the seventh cutout portion 128 on the insertion / removal side of the disc cartridge 201, when the eject plate 37 slides to the eject position,
The rotation operation engagement piece 72 protruding into the cutout portion 128
The cartridge retraction operation lever 57 is engaged with the cartridge retraction operation lever 57 to rotate the cartridge retraction operation lever 57.

On the rear side of the seventh cutout portion 128 into which the disc cartridge 201 is inserted, the eject plate slide pin 130 of the eject plate slide drive mechanism 38 for sliding the eject plate 37 to the eject position. Operation hole 129 into which is inserted and engaged
Is provided. The operation hole 129 is provided as a hole having a substantially b shape in a plan view, and the eject plate slide pin 130 is slidably contacted with the opening peripheral edge portion.

As shown in FIG. 2, the eject plate slide mechanism 38 is provided with an eject motor (not shown) provided below the chassis substrate 6 and an eject plate slide pin 130 rotationally driven by this motor. The eject plate operating gear 131 is provided. The eject motor and the eject plate operating gear 130 are connected by a plurality of connecting gear mechanisms 132 of different sizes. Then, the eject plate operating gear 13
The eject plate slide pin 130 is erected at the eccentric position 1. In the eject plate slide mechanism 38, in a state where the disc cartridge 201 is mounted in the cartridge mounting portion 1, an eject operation button (not shown) is operated to drive the eject motor and the eject plate operation gear 131 is rotationally driven. Then, the eject plate slide pin 130 slidably engages with the peripheral portion of the opening of the operation hole 129 of the eject plate 37 to slide the eject plate 37, so that the cartridge retracting lever 57 is pulled. The ejecting plate 37 is slid to the eject position by sliding it against the biasing force of a tension coil spring, which will be described later and stretched across the coil spring 70 and the eject plate 37, and the chassis substrate 6. It should be noted that the eject plate slide pin 130 is adapted to be rotated to a position where it does not come into sliding contact with the peripheral edge of the opening of the operation hole 129 when the eject plate 37 is not in the eject position. Further, a part of the slide portion 117 is bulged upward at a position corresponding to a portion where the cartridge retracting member 55 is provided from one side edge of the slide portion 117 on the insertion / removal side of the disc cartridge 201. A section 134 is provided.

The rising walls 118 and 119 provided on both sides of the slide portion 117 facing each other have:
The cartridge holder 35 is moved up and down with respect to the cartridge mounting portion 1 and the disc cartridge 2
Vertical slide grooves 135, 136 and 137, 13 for moving 01 to the eject position for discharging.
8 are provided respectively. The vertical slide grooves 135, 136 and 137, 138 are provided in the horizontal portions 135 a, 13 parallel to the inserting / removing direction of the disc cartridge 201.
6a and 137a, 138a and the horizontal portion 135a,
The first inclined portions 135b, 1 that gently descend and incline rearward from 136a and 137a, 138a.
36b and 137b, 138b, and second inclined portions 135c, 13 that incline downwardly further toward the rear side.
6c and 137c, 138c. The cartridge holder 35 supported on the chassis substrate 6 by inserting the vertical movement guide pins 41, 42 and 43, 44 into the vertical movement slide grooves 135, 136 and 137, 138 formed in this way is used for the vertical movement slide. Groove 13
5, 136 and 137, 138, the vertical movement guide pin 4
The guides 1, 42 and 43, 44 are operated to vertically move the spindle shaft 10 of the disk rotation driving device 2, that is, the cartridge mounting portion 1, and eject the disk cartridge 201. It is moved to the position.

Further, the eject plate 37 is provided on the insertion / removal side of the disc cartridge 201 in the vicinity of the vertical slide slide grooves 136, 138 on the inner side of the rising walls 118, 119 into which the disc cartridge 201 is inserted and operated. Fourth tension coil spring 1 for constantly energizing
39 are attached respectively. In the figure,
One of the tension coil springs is omitted. Each of these tension coil springs 139 has its one end raised to the wall 11
The eject plate 37 is locked to the disk cartridge 20 by locking the other end to the spring locking pins 140 and 141 which are erected on the chassis substrate 6.
It is designed to always urge the insertion / removal side of No. 1.

Furthermore, the one rising wall 1
On the inner side of the disk cartridge 201 into which the disk cartridge 201 is inserted, a lever operating pin 34 of a magnetic head elevating frame member vertical movement lever 24 rotatably supported by the chassis substrate 6 is fitted. A magnetic head lifting frame member vertical movement lever operating member 142 for rotating the lifting frame member vertical movement lever 24 is provided. The magnetic head raising / lowering frame member vertical movement lever operating member 142 is provided so as to extend from one side edge on the lower end side of one rising wall 118 toward the other rising wall 119 side in parallel with the slide portion 117. ing. A lever operating pin guide groove 142a into which the lever operating pin 34 is fitted and engaged is formed as a slotted hole in the vicinity of the tip end of the magnetic head elevating frame member vertical movement lever operating member 142. The lever operation pin guide groove 1 of the magnetic head elevating / lowering frame operation lever operation member 142 formed in this way
The lever operation pin 34 is fitted into and engaged with 42a, and the eject plate 37 is slid, whereby the magnetic head elevating frame member vertical movement lever 24 is rotationally operated, and the magnetic head elevating frame member 23. Optical disc 2
The signal recording surface of No. 02 is contacted and separated in a direction substantially orthogonal to the signal recording surface.

[3] Description of Mounting Operation of Disk Cartridge (FIGS. 11 to 25) An operation state of mounting the above-described disk cartridge 201 in the disk drive device configured as described above will be described.

[3-a] Description of State Before Insertion of Disk Cartridge (11th to 14th Embodiments) First, the state before the mounting operation of the disk cartridge 201 will be described. To mount the disc cartridge 201, an eject button (not shown) is operated to move the eject plate 37 to the eject position as shown in FIGS. 11 to 14, so that the cartridge holder 35 and the magnetic head 20 are The magnetic head elevating frame member 23 provided is moved to a raised position separated from the disk table 11 of the disk rotation driving device 2.

That is, by operating the eject button, the eject plate slide mechanism 38 is driven, and the eject plate slide pin 130 of the eject plate slide mechanism 38 is provided in the operation hole 12 provided in the eject plate 37.
A fourth tension coil spring 13 which is slidably engaged with 9 and is stretched over the eject plate 37 and the chassis substrate 6.
9 and the ejecting plate 37 is slid toward the inserting direction of the disc cartridge 201 against the urging force of the tension coil spring 70 stretched on the cartridge retracting lever 57. The eject plate holding lever 103 of the cartridge holder support plate 36 is provided on the eject plate 37, and the eject plate locking member 12 is provided.
4 and the eject plate 37 is held at the eject position.

Further, when the eject plate 37 is slid, the rotation operation engaging piece 72 of the cartridge retracting operation lever 57 projectingly engaged with the seventh cutout portion 128 of the eject plate 37 is the disc operation cartridge 72. 20
1 is pulled toward the insertion side. Then, the cartridge retracting member 55 connected to the cartridge retracting operation lever 57 is slid to the insertion / removal side of the disk cartridge 201, and the cartridge retracting member 55 is moved.
The cartridge pull-in pin 54 provided at the tip of the cartridge holder 35 is held at a position away from the cutout portion 80 of the cartridge holder 35 to the outside. Therefore, in this ejected state, the cartridge pull-in pin 54 does not come into contact with the disc cartridge 201 inserted into the cartridge holder 35. It should be noted that the shutter opening pin 46 is stretched over the shutter opening lever 47 and the cartridge retraction operation lever 57.
The tension coil spring 51 of FIG.

Further, when the eject plate 37 is slid, the magnetic head elevating frame member vertical movement lever operating member 142 and the magnetic head elevating frame member vertical movement lever 24 provided on the eject plate 37 are engaged with each other. Then, the magnetic head elevating frame member vertical movement lever 24 is rotated, and the magnetic head elevating frame member 23 is moved to an elevated position separated from the disc table 11 of the disc rotation driving device 2 shown in FIG. It At this time, in the loading state, the magnetic head elevating and lowering frame member 23 presses and urges the engaging surface 23a provided in the magnetic head elevating and lowering frame member 23 by the leaf spring 111 provided in the eject plate 37, so that the magnetic head is raised. Although the head elevating frame member 23 is held at the recording position, the eject plate 37 slides backward to release these engagements, and the magnetic head elevating frame member 23 is lifted only against its own weight. Be punished. Therefore, the magnetic head lifting frame member 2
The load on the motor of the eject plate slide mechanism 38 for raising 3 is small, and a motor with a relatively small output can be used.

The frame member 23 for raising and lowering the magnetic head
When the magnetic head elevating frame member 23 is lifted to the ejecting position, that is, in the parallel portion 33b of the vertical movement guide portion 33 of the magnetic head elevating frame member vertical movement lever 24. The engagement pin 29 is engaged, and the magnetic head 20 is held at a position where it does not hit the disk cartridge 201 at least when the disk cartridge 201 is inserted.

[3-b] Description of the state in which the disc cartridge is being inserted (FIGS. 15 to 20).
Is inserted into the cartridge holder 35 from the front side in the proper orientation as shown in FIG. And
When the disc cartridge 201 is further inserted inward, the shutter opening pin 46 comes into contact with the front surface portion 209 of the first cartridge 203, as shown in FIG. When the shutter opening pin 46 comes into contact with the front surface portion 209, as shown in FIG. 19, a cartridge depressing member that is formed on the upper plate portion 45 of the cartridge holder 35 so as to face the shutter opening pin 46. 8
9, the disc cartridge 201 is pushed down toward the disc table 11 side, and the shutter release pin escape prevention member 50 provided on the shutter release pin 46.
It abuts on the front surface portion 209 in a state in which it is prevented from climbing up to.

Here, for example, the disk cartridge 2
27, the tilt angle θ ₁ of the tilted portion 76 of the shutter opening pin guide groove 49 is set to prevent the erroneous insertion of the disc cartridge 201. Slope 22
Since the inclination angle θ ₂ is equal to or less than 9, the disc cartridge 201 collides with the shutter opening pin 46 and the disc cartridge 20
Prevent further insertion of 1. That is, when the disc cartridge 201 is inserted in the opposite direction, it can be removed before the disc cartridge 201 is automatically pulled into the drive. Similarly, erroneous insertion can be prevented even in a magnetic disk cartridge 301 in which a magnetic disk 302 such as a floppy disk is stored.

When the disk cartridge 201 is further inserted into the cartridge holder 35 from this state, as shown in FIG. 20, one end of the shutter member 211 abuts on the shutter opening pin 46, and the shutter member 211 causes the shutter member 211 to shutter. The opening pin 46 is moved in the direction of opening the openings 206 and 210 of the disk cartridge 201 indicated by the arrow N in FIG. 20 against the biasing force of the torsion coil spring provided in the cartridge 203. At this time, the shutter opening pin 46 is
Since the position of the shutter opening pin escape prevention member 50 is regulated with respect to the shutter opening pin guide groove 49, the shutter member 211 is surely opened without riding on the shutter member 211.

When the disc cartridge 201 is further inserted into the cartridge holder 35,
The eject plate holding lever turning pin 105 of the eject plate holding lever 103 rotatably attached to the cartridge holder supporting plate 36 and the disc cartridge 201.
Of the eject plate holding lever 1
03 is rotated in the direction of arrow O in FIG. 20, and the engagement between the eject plate holding lever 103 and the eject plate locking member 124 provided on the eject plate 37 is released. As a result, the eject plate 37 is unlocked,
The eject plate 37 is slid to the insertion / removal side of the disc cartridge 201 by a fourth tension coil spring 139 stretched over the eject plate 37 and the chassis substrate 6.

At the same time, one side edge 128a of the cutout portion 128 of the eject plate 37 releases the engagement of the cartridge retracting operation lever 57 with the rotating operation engaging piece 72. As a result, the cartridge pull-in operation lever 57 is pulled by the second tension coil spring 70, and the cartridge pull-in operation lever 57 rotates about the third support shaft 68. As the cartridge retracting lever 57 is rotated, the cartridge retracting member 55 is slid along the shapes of the bent portions 63a and 64a of the advancing / retreating operation guide grooves 63 and 64 provided in the cartridge retracting member 55. It That is, the cartridge retracting member 55 slides obliquely forward from the one end edge of the cartridge holding portion 40 of the cartridge holder 35. As a result, the cartridge pull-in pin 54 provided at the tip of the cartridge pull-in member 55 is located outside the cartridge holder 35 along the shape of the bent portions 63a, 64a of the advance / retreat operation guide grooves 63, 64. It is moved inward from the held initial state, and is fitted into the cartridge pull-in pin fitting hole 228 provided in the disk cartridge 201.

Thereafter, the cartridge retracting member 55 is
Straight part 63 of the above-mentioned advance / retreat operation guide grooves 63, 64
disc cartridge 201 according to the shapes of b and 64b
The slide operation is performed in the insertion direction of. As a result, the disk cartridge 201 is drawn in the disk insertion direction indicated by the arrow P in FIG. 21 by the cartridge drawing pin 54 provided at the tip of the cartridge drawing member 55. Finally, the disc cartridge 201 is located on the inner end side of the cartridge holder 35, and the first and second openings 206 and 210 provided in the disc cartridge 201 are fully opened.

[3-c] Description of Completed Mounting State of Disk Cartridge (FIGS. 21 to 25) Then, as the eject plate 37 is moved, the cartridge holder 35 is moved as shown in FIGS. 21 to 25. The vertical movement guide pins 41, 42 and 43, 44 are guided by the vertical movement slide grooves 135, 136 and 137, 138 provided in the eject plate 37, and the axial direction of the spindle shaft 10 of the disk rotation drive device 2 is increased. It is operated to descend. That is, the vertical guide pin 4
1, 42 and 43, 44 are the vertical slide grooves 13 described above.
5, 136 and 137, 138, in a state of being engaged with the second slanted portions 135c, 136c and 137c, 138c of the vertically moving slide grooves 135, 136 and 137, 138 which are slanted downward. The cartridge holder 35 has a cartridge holder support plate 36.
Vertical movement guide grooves 95, 96 and 97, 98 provided in the
Is descended along. As a result, the disc cartridge 201 is positioned and mounted in the cartridge mounting portion 1. At this time, the disc cartridge 20
The position of 1 is regulated by the height positioning pins 7a and 8a and the disk cartridge positioning pins 7 and 8 provided on the chassis substrate 6 and is maintained at a predetermined height. At the same time, this disc cartridge 2
The optical disc 202 housed in 01 is placed and mounted on the disc table 11.

As the eject plate 37 is moved, the magnetic head elevating frame member vertical movement lever operating member 142 provided on the eject plate 37 and the magnetic head elevating frame member vertical movement lever 24 are engaged with each other. The magnetic head elevating / lowering frame member vertical movement lever 24 is operated to rotate, and the magnetic head elevating / lowering frame member 23 moves the spindle shaft 10 of the disk rotation driving device 2 as shown in FIGS. It is moved down in the axial direction. When the magnetic head elevating frame member 23 is lowered, as shown in FIG. 23, the leaf spring 11 provided on the eject plate 37 is provided.
1 engages with the engaging surface 23a of the magnetic head raising / lowering frame member 23 to press and bias the magnetic head raising / lowering frame member 23. As a result, the magnetic head 20 movably supported by the magnetic head lifting frame member 23 faces the opening 210 of the disc cartridge 201, and the optical disc 20 housed in the disc cartridge 201.
It is held at a predetermined height position with respect to the second signal recording layer and is arranged so as to face the optical pickup device 4, so that the information signal can be recorded and reproduced.

In the disk drive device constructed as described above, the magnetic head is moved up and down by the plate spring 111 provided on the eject plate 37 only when the information signal is recorded / reproduced on / from the optical disk 202. Since the frame member 23 is pressed and biased,
When this device is used not only in a state where the optical disc 202 is horizontal with respect to the horizontal plane but also in a vertical state, the magnetic head 20 is positioned at a predetermined height position with respect to the optical disc 202 during recording and reproduction. Can be held at.
That is, even when the device is mounted on a car or the like, it is possible to satisfactorily record / reproduce on / from the optical disc 202.

[4] Other Embodiments (FIG. 26) An embodiment of the automatic cartridge retraction device in the disk drive device to which the present invention is applied has been described above, but the present invention is not limited to the above-mentioned embodiment. It is possible to make various changes without the need. For example, in order to make the sliding operation of the cartridge retracting member 55 by rotating the cartridge retracting lever 57 smoother, as shown in FIG.
The engaging hole 67 with which the advancing / retreating operation engaging pin 69 provided in 7 is engaged is not a straight shape but a shape in which the tip end side is bent. According to this, the rotation torque of the cartridge pull-in operation lever 57 is efficiently used for moving the cartridge pull-in member 55.

[0085]

As described above, in the cartridge erroneous insertion preventing device in the disk drive device according to the present invention, the inclination angle of the inclined portion on the starting end side of the shutter opening pin guide groove provided in the cartridge holder is the same as that of the disc cartridge. Since the inclination angle of the inclined surface for preventing erroneous insertion provided on the insertion side is equal to or less than that, the disc cartridge is erroneously provided with this inclined surface as the starting end side of the shutter opening pin guide groove. Even when the disc cartridge is inserted into the cartridge holder, the shutter opening pin does not move and comes into contact with the disc cartridge to prevent the disc cartridge from being inserted due to the difference in the inclination angle. Therefore, erroneous insertion of the disc cartridge can be reliably prevented.

Further, in the disc drive device according to the present invention, it is possible to prevent the erroneous insertion of the disc cartridge before the eject plate in the eject state slides to automatically load the disc cartridge into the drive. Therefore, it is possible to reliably prevent erroneous insertion of the disk cartridge without causing a problem with respect to auto eject.

[Brief description of drawings]

FIG. 1 is a perspective view of a disk drive device according to an embodiment.

FIG. 2 is an exploded perspective view of the disk drive device according to the present embodiment.

FIG. 3 is a perspective view showing the configuration of a cartridge mounting portion that constitutes the disk drive device of the present embodiment.

FIG. 4 is a perspective view showing a configuration of a cartridge holder support plate that constitutes the disk drive device of the present embodiment.

FIG. 5 is a perspective view showing the configuration of a cartridge holder that constitutes the disk drive device of the present embodiment.

FIG. 6 is a perspective view showing the configuration of an eject plate that constitutes the disk drive device of the present embodiment.

FIG. 7 is a perspective view showing a state at the time of ejecting the magnetic head device vertical movement mechanism that constitutes the disk drive device of the present embodiment.

FIG. 8 is a perspective view showing a state at the time of loading of a magnetic head device vertical movement mechanism which constitutes the disk drive device of the present embodiment.

FIG. 9 is an exploded perspective view of a cartridge holder.

FIG. 10 is a perspective view of the cartridge holder as viewed from the back side.

FIG. 11 is a plan view showing an eject state in the disk drive device of the present embodiment.

FIG. 12 is a right side view showing an eject state in the disk drive device according to the present embodiment.

FIG. 13 is a left side view showing an eject state in the disk drive device of the present embodiment.

FIG. 14 is a front view showing an eject state in the disk drive device of the present embodiment.

FIG. 15 is a plan view showing an initial state of inserting the disc cartridge into the cartridge holder.

FIG. 16 is a plan view showing an engagement state with a shutter opening pin when the disc cartridge is attached to the cartridge holder.

FIG. 17 is a cross-sectional view showing a state where the shutter opening pin is inserted into the disc cartridge.

FIG. 18 is a main-portion cross-sectional view showing a state where a shutter opening pin is inserted into a disc cartridge.

FIG. 19 is a cross-sectional view showing an engaged state of an eject plate holding lever rotation pin with respect to a disc cartridge.

FIG. 20 is a plan view showing a halfway state of opening the shutter member by the shutter opening pin of the disc cartridge.

FIG. 21 is a plan view showing a state where the opening of the shutter member by the shutter opening pin of the disc cartridge is completed.

FIG. 22 is a plan view showing a loading state in the disk drive device of the present embodiment.

FIG. 23 is a right side view showing a loading state in the disk drive device of the present embodiment.

FIG. 24 is a left side view showing a loading state in the disk drive device of the present embodiment.

FIG. 25 is a front view showing a loading state in the disk drive device of the present embodiment.

FIG. 26 is a perspective view showing another example of the cartridge retracting member.

FIG. 27 is a plan view showing a state in which the disc cartridge is inserted into the cartridge holder with the front and back opposite.

FIG. 28 is a perspective view of a disc cartridge.

FIG. 29 is a perspective view of a magnetic disk cartridge.

FIG. 30 is a plan view showing a cartridge erroneous insertion prevention device in a conventional disk drive device.

[Explanation of symbols]

 35 ... Cartridge holder 46 ... Shutter opening pin 47 ... Shutter opening member 49 ... Shutter opening pin guide groove 54 ... Cartridge retracting pin 55 ... Cartridge retracting member 57 ... Cartridge retracting operation Lever 70 ... Extension coil spring 76 ... Inclined part 77 ... Straight part 201 ... Disk cartridge 228 ... Cartridge retracting pin fitting hole 229 ... Inclined surface

Claims (1)

[Claims] 1. A shutter opening member provided with a shutter opening pin that engages with a shutter member of a disk cartridge to move the shutter member in a direction to open the opening of the disk cartridge, and the shutter opening member. A shutter release pin guide groove formed so as to move the shutter member in a direction in which the opening of the disc cartridge is opened in association with the insertion operation of the disc cartridge. And an inclination angle of the inclined portion on the starting end side of the shutter opening pin guide groove is equal to or less than the inclination angle of the erroneous insertion preventing inclined surface provided on the insertion side of the disc cartridge. Car in a disk drive device characterized by Ridge wrong insertion prevention device.