JPH1116335A - Electronic device employing recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrow a recording section to be detached from a device when being carried so as to reduce a thickness of the device and allow the device to be easily carried by attaching the recording section to a main body of the device when an information signal is to be recorded onto a recording medium while detaching the recording section from the device when reproducing the recorded information. SOLUTION: When a signal is to be recorded onto a magneto-optical disk which is driven to rotate within a device housing 21, engaging piece 75a, 75b, 75c, and 75d of a recording section housing 68 are allowed to be engaged with engaging sections 30a, 30b, 30c, and 30d of a case so as to attach a recording section 66 to the lid. A magnetic head device 67 is inserted into the device through a magnetic head inserting opening. A magnetic head 71 comes into contact with a main surface of the magneto-optical disk and is connected with an optical pickup device provided within the device housing 21 via a connecting arm 7 so as to be moved in a radius direction of the magneto-optical disk. The optical pickup device emits light beams and the magnetic head 71 applies magnetic field, thereby recording an information signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic apparatus in which a recording section and a reproducing section are arranged to face each other and a recording medium in which either the recording section or the reproducing section is detachable is used.

[0002]

2. Description of the Related Art Conventionally, as a disk-shaped recording medium,
The information signal is recorded by irradiating a light beam from the optical pickup device and applying an external magnetic field by the magnetic head device, and reproducing the information signal by irradiating the light beam from the optical pickup device and detecting the reflected light. There is a magneto-optical disk that performs the following. In addition, disc-shaped recording media include:
There is an optical disc that reproduces an information signal by irradiating a light beam from an optical pickup device and detecting reflected light.

A small-sized recording / reproducing apparatus for recording / reproducing such a magneto-optical disk and an optical disk has a recording / reproducing section for recording / reproducing a recording medium in a housing. This recording / reproducing unit includes a disk rotation operation unit for rotating the disk at the center on the bottom side and an optical pickup device moving over the inner and outer circumferences of the disk, and moves on the upper surface side in synchronization with the optical pickup device. And a magnetic head device.

In such a recording / reproducing apparatus, when a disc is mounted on a recording / reproducing section, the disc is clamped by a disc rotating operation section and rotated. When recording information signals on the magneto-optical disk, the recording / reproducing apparatus moves the magnetic head device and the optical pickup device from the inner peripheral side to the outer peripheral side of the magneto-optical disk. At the same time, the magnetic head of the magnetic head device slides on the signal recording surface of the magneto-optical disk, and the optical pickup device irradiates a light beam from the optical pickup device to the surface of the magneto-optical disk facing the magnetic head. As a result, the magneto-optical disk, which has lost the coercive force due to the irradiation of the light beam, records an information signal by applying an external magnetic field modulated according to the information signal to the signal recording area via the magnetic head device. Is performed.

When reproducing information signals recorded on a magneto-optical disk or optical disk, the recording / reproducing apparatus does not use a magnetic head device and moves the optical pickup device from the inner peripheral side to the outer peripheral side of the magneto-optical disk or optical disk. Is moved. The optical pickup device converges and irradiates a light beam emitted from a light source onto a signal recording area of the magneto-optical disk or optical disk via an objective lens to the magneto-optical disk or optical disk. The information signal recorded on the magneto-optical disk is read by detecting the reflected light of the light beam applied to the optical disk via the objective lens and the optical block.

[0006]

[0005] By the way, the user,
Normally, when a small-sized recording / reproducing apparatus is carried in a bag or the like, the recording / reproducing apparatus is exclusively used as the reproducing apparatus. That is, the user does not usually write an information signal to the disk cartridge when carrying.

However, in the recording / reproducing device, since the magnetic head device is disposed on the upper side of the device facing the optical pickup device, the volume of the entire device is increased, and the size and weight of the entire device are reduced. Was hindered.

Accordingly, an object of the present invention is to provide an electronic apparatus used for a recording medium which is small and has excellent portability.

[0009]

In order to solve the above-mentioned problems, an electronic apparatus using a recording medium according to the present invention is provided with an apparatus main body having a reproducing section and a detachable mounting section at a position facing the reproducing section. And a shutter that opens and closes an opening provided in the main body of the device in which the recording unit is disposed so as to face the reproduction unit. That is, when recording an information signal on a recording medium, the recording unit is attached to the apparatus main body, and when reproducing an information signal recorded on the recording medium, the recording unit is detached from the apparatus main body.

In order to solve the above-mentioned problems, an electronic device using a recording medium according to the present invention has a device main body provided with a reproducing unit and a device main unit provided with the device main unit mounted on a loading unit of another device. An opening provided in the device main body in which a recording unit of another device is arranged to face the reproducing unit, and a second opening / closing lid for opening and closing the opening. In an electronic device using such a recording medium, the electronic device is loaded into a loading unit provided with a recording unit of another device only when an information signal is recorded on the recording medium.

Further, in order to solve the above-mentioned problems, an electronic apparatus using a recording medium according to the present invention includes a holder for holding a recording medium detachably supported by an apparatus main body provided with a reproducing unit; A recording unit is movably attached to the holder and attached so as to synchronize with the reproducing unit, and an opening / closing lid is provided integrally with the holder and opens and closes a recording medium attachment unit formed in the apparatus body. When an electronic device using such a recording medium records an information signal on the recording medium, the recording device is used by attaching a first lid body attached to a holder to the device main body and recording the information signal on the recording medium. When the reproduced information signal is reproduced, the information signal is used by replacing the first lid with a second lid to which the recording unit is not attached.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which a small-sized disk recording / reproducing apparatus to which an electronic apparatus using a recording medium according to the present invention is applied is excellent in portability.

The disk recording / reproducing apparatus 20 uses a disk cartridge containing a rotatable magneto-optical disk or optical disk as a recording medium. As shown in FIGS. 1 and 4, the disk recording / reproducing apparatus 20 includes a housing 21 forming a main body of the apparatus.
Inside, a base 22 provided with an optical pickup device constituting a reproducing unit for reproducing an information signal recorded on the magneto-optical disk and a disk rotation operation unit for rotating the magneto-optical disk is provided. On the upper surface side of the base 22,
A cartridge mounting section 23 on which a disk cartridge is mounted is configured. Then, a cartridge holder 25 rotatably supported by the base 22 is attached to the base 22. This cartridge holder 25 has a base 22
A cover 24 for opening and closing the upper surface of the cover is fixedly attached with a screw or the like. That is, the lid 24 is integrally attached to the cartridge holder 25 and the cartridge holder 2
5 is rotated in synchronism with. In the disk recording / reproducing apparatus 20, when the cover 24 is in the open state rotated upward in FIG. 3, the disk cartridge 1 is inserted / removed. When the lid 24 is closed in a state where the lid 24 is turned downward in FIG. 3, the disk cartridge 1 is mounted on the cartridge mounting portion 23 formed on the base 22.

Here, a disk cartridge 1 used in such a disk recording / reproducing apparatus 20 is, for example, as shown in FIGS. 1 and 2, a cartridge body formed by joining an upper half 2 and a lower half 3 together. The cartridge main body 4 has a magneto-optical disk 5 rotatably housed therein. The magneto-optical disk 5 has a center hole 6 at the center thereof, and a clamping plate 7 made of a magnetic material such as a metal plate is attached so as to close the center hole 6.

The cartridge body 4 has a central opening 8 into which a disk table constituting a disk rotating operation mechanism disposed on the disk recording / reproducing apparatus side enters, a recording / reproducing opening 9 facing the optical pickup device, A recording / reproducing opening 10 into which the magnetic head device enters is provided. As shown in FIG. 2, the center opening 8 is provided at the center on the lower surface side of the cartridge body 4, and the center hole 6 of the magneto-optical disk 5 housed in the cartridge body 4 and the periphery of the center hole 6 are outwardly formed. Face. The recording / reproducing opening 9 is provided on the lower surface side of the cartridge main body 4 as shown in FIG. 2, and the recording / reproducing opening 10 is provided on the upper surface side of the cartridge main body 4 as shown in FIG. The openings 9 and 10 are formed in a rectangular shape at the center in the left-right direction of the cartridge main body 4 from the position close to the center hole 6 opposing to the one side surface 4 a side of the cartridge main body 4. You.

The cartridge body 4 has a shutter 11 for opening and closing the recording / reproducing opening 9 and the recording / reproducing opening 10.
Is movably mounted. The shutter 11 includes opposing first and second shutter plates 12 and 13 for opening and closing the recording / reproducing opening 9 and the recording / reproducing opening 10, respectively.
And a connecting plate 14 for connecting the substrate portions of the first and second shutter plates 12 and 13, and are formed in a U-shaped cross section as a whole. The shutter 11 has one side surface 4 such that the recording and reproducing opening 9 and the recording and reproducing opening 9 are covered from outside by first and second shutter plates 12 and 13.
It is attached to the cartridge body 4 so as to fit from the a side. And the connecting plate 14 of the shutter 11
Although not shown, a guide piece formed by cutting and raising a part of the connecting plate 14 is formed. The guide piece is engaged with a groove 15 provided on one side surface 4 a of the cartridge body 4. The shutter 11 is guided in the groove 15 by the guide piece, and is moved in the directions of arrows A and B in FIGS. 1 and 2 for opening and closing the openings 9 and 10 along one side surface 4 a of the cartridge body 4. Further, the shutter 11 is provided with each opening 9,
When the cartridge 10 is in the closed position, it is locked by a lock member (not shown) provided in the cartridge body 4 and the openings 9 and 10 are kept closed.

The disc cartridge 1 is inserted into a disc recording / reproducing apparatus with the direction of the arrow A in FIGS. 1 and 2 in which the shutter 11 opens the openings 9 and 10 as the insertion direction. Therefore, the disk cartridge 1
Is inserted into the cartridge holder of the disk recording / reproducing apparatus 20 with the front surface 4, which is one surface orthogonal to one side surface 4a on which the shutter 11 moves, as an insertion end.

As shown in FIGS. 1 and 4, a control circuit for controlling the drive of a disk drive and an optical circuit are provided in a housing 21 of a disk recording / reproducing apparatus 20 in which such a disk cartridge 1 is used as a recording medium. A printed wiring board 26 having a recording / reproducing circuit for processing information signals recorded on the magnetic disk 5 and information signals read from the magneto-optical disk 5 is provided. The lid 24 is provided with an operation unit 27 for executing the operation of the apparatus main body. The operation unit 27 is electrically connected to the printed wiring board 26. The operation unit includes a play button 27a, a forward track jump button 27b, a reverse track jump button 27c, a stop button 27d, a volume adjustment button 27e, and a recording start button (not shown). In addition, a lock release knob 27f for releasing the state where the lid 24 closes the cartridge mounting portion 23 is provided on the front side, which is the insertion direction side of the disk cartridge 1, in the housing 21. The lid 24 may be provided with a display using a liquid crystal display device. In this case, the display unit displays various information related to the operation mode of the disc recording / reproducing apparatus.

As shown in FIGS. 1 and 4, the cover 24 has a rectangular magnetic head entry opening 28 into which a magnetic head device constituting the recording section enters.
Is closed by The shutter 29 is opened only when the magnetic head device is attached to the magnetic head entry opening 28 in order to record an information signal on the magneto-optical disk 5 in the apparatus main body. The shutter 29 is provided with an operation knob 29a on its main surface, and is slid in the direction of arrow C or D in FIGS. At four corners of the magnetic head entry opening 28, locking portions 30a, 30b, 30 for attaching a recording portion constituting the magnetic head are provided.
c and 30d are provided.

A base 22 on which a disk rotation operation unit and an optical pickup device are mounted and which is disposed in a housing 21.
Are provided with a disk rotation operation unit for rotating the magneto-optical disk 5 and an optical pickup device constituting a reproducing unit for reproducing an information signal recorded on the magneto-optical disk 5. As shown in FIG. 4, the base 2 is formed in a rectangular shape having substantially the same size as the main surface of the disk cartridge 1 using a metal plate. And in the center of the base 22,
A disk rotation operation unit 31 for rotating the magneto-optical disk 5 stored in the disk cartridge 1 mounted on the cartridge mounting unit 23 is provided.

The disk rotation operation unit 31 includes a spindle motor 32 and a disk table 33 rotated by the spindle motor 32. The spindle motor 32 connects the spindle shaft 34 to the cartridge mounting section 2.
3 is attached to the lower surface of the base 22 so as to protrude from the upper surface of the base 22. Disk table 33
Is located on the tip end side of the spindle shaft 34.
4 so as to rotate integrally therewith. The center of the disk table 33 is set so that the magneto-optical disk 5 is mounted on the disk table 33 in a centered manner.
A centering member 35 that engages with the center hole 6 of the magneto-optical disk 5 is provided. Also, the disk table 33
Is provided with a magnet for magnetically attracting the clamping plate 7 and clamping the magneto-optical disk 5 so as to rotate integrally with the disk table 33.

As shown in FIG. 4, the magneto-optical disk 5 clamped to a disk table 33 and rotated by a disk rotation operating section 31 is mounted on the base 22.
An optical pickup device 37 for recording or reproducing an information signal is attached to the optical pickup. The optical pickup device 37 is
A semiconductor laser that emits a light beam; an objective lens 38 that converges and irradiates the light beam emitted from the semiconductor laser onto the magneto-optical disk 5; A photodetector for detecting a control signal is configured as a main component.

The optical pickup device 37 is shown in FIGS.
As shown in FIG. 5, both sides are supported by a pair of guide shafts 41 and 42 attached to the lower surface of the base 22 in parallel with each other, and can be moved in the radial direction of the magneto-optical disk 5 placed on the disk table 33. Supported. At this time, the objective lens 38 faces the upper surface of the base 2 via the opening 46 and faces the magneto-optical disk 5 on the disk table 33. Then, the optical pickup device 37 is guided by guide shafts 41 and 42 by a screw shaft 44 rotated by a feed motor 43 attached to the lower surface side of the base 22, and is guided in the radial direction of the magneto-optical disk 5 on the disk table 33. Is operated. The screw shaft 44 is attached to the base 22 in parallel with the guide shafts 41 and 42,
It is connected to the feed motor 43 via a gear mechanism 45.

The optical pickup device 37 controls the feed motor 43 in accordance with the operation mode operated by the operation unit 27 when recording or reproducing data on or from the magneto-optical disk 5. From the outside to the outer periphery.

On the upper surface side of the base 22, a disk rotating operation unit 31 is clamped to a disk table 33.
Thus, a cartridge mounting section 23 for mounting the disk cartridge 1 containing the magneto-optical disk 5 to be rotated is configured. In the cartridge mounting portion 23,
As shown in FIG. 4, a positioning pin 47 for positioning the mounting position of the disk cartridge 1 mounted on the disk recording / reproducing apparatus 20 and a height positioning protrusion 48 are provided. Thus, the disk cartridge 1 is positioned in the horizontal direction and the height direction, and is mounted on the cartridge mounting portion 23.

A pair of support pieces 49a for rotatably supporting a cartridge holder 25 for holding the disk cartridge 1 are provided on both sides on the rear side of the base 22 opposite to the front side where the disk cartridge 1 is inserted / removed. , 4
9b is attached. A support shaft 51 protrudes from the support pieces 49a and 49b, and the cartridge holder 25 is rotatably supported via the support shaft 51.

The cartridge holder 25 rotatably mounted on the upper surface side of the base 22 has a top plate 52 and a U-shaped cross section on both sides of the top plate 52 so as to hold the disk cartridge 1. It has a pair of folded cartridge holding portions 53a and 53b. When the disk cartridge 1 is inserted through the insertion / removal opening 25a on the front side, the cartridge holder 25 is inserted into each of the cartridge holding portions 53a and 53b.
The front side and the back side are supported and held.

A shutter release piece 54 projects from the cartridge holder 25b toward the inside of the cartridge holder 25 in the middle of the cartridge holder 53b. This shutter release piece 54
When the disc cartridge 1 is inserted into the cartridge holder 25, the groove 1 of the disc cartridge 1
5 and comes into contact with the surface of the connecting plate 14 of the shutter 11 so that the disc cartridge 1
The shutter 11 is opened when stored in the inside. Further, a shaft hole 55 is formed in the cartridge holder 25 behind the cartridge holding portions 53a and 53b. The above-described support shaft 51 provided on the back side of the base 22 is fitted into these shaft holes 55, and rotatably supports the cartridge holder 25. In addition, the cartridge holder 25 includes
The top plate 52 is provided with a window 56 which is an opening for allowing a part of the magnetic head device to enter the cartridge holder 25. The window 56 is provided corresponding to the magnetic head entry opening 28 provided in the lid 24 described above.

When the cartridge holder 25 thus configured is pivoted upward away from the cartridge mounting portion 23, the disk cartridge 1 is inserted and removed, and the disk cartridge 1 is held. When the disk cartridge 1 is rotated to the lower side on the side of the
Attach to 3. In this manner, the disc cartridge 1 mounted on the cartridge mounting section 23 is positioned by the positioning pins 47, the height positioning projections 48 and the like, and is in a state where recording or reproduction is possible.

Further, such a cartridge holder 25
As shown in FIG. 4, an elevating mechanism 58 for elevating and lowering the magnetic head device is provided on the top plate portion 52.
The magnetic head device facing the window 56 extends between a first position close to the magneto-optical disk 5 mounted on the cartridge mounting portion 23 by the elevating mechanism 58 and a second position separated therefrom. It is rotated. As shown in FIG. 4, such an elevating mechanism 58 includes a magnetic head elevating plate 59 for rotating the head support plate of the magnetic head device and a moving operation of the magnetic head elevating plate 59 by a driving motor. And an operation plate 61 for performing the operation.

As shown in FIG. 4, the magnetic head elevating plate 59 is disposed on the upper surface of the cartridge holder 25 so as to extend over the window 56. Magnetic head lifting plate 59
Includes a magnetic head support portion 62 for supporting the magnetic head support plate from below, and support arms 63a and 63b protruding from both ends of the magnetic head support portion 62. The magnetic head elevating plate 59 has the base ends of the support arms 62a and 62b on the rear side of the cartridge holder 25 and the window 56.
Is supported on a shaft provided near the cartridge holder 25, and is disposed on the cartridge holder 25 so as to be rotatable about the shaft.

As shown in FIG. 4, an operation plate 61 for rotating the magnetic head elevating plate 59 is movably disposed on the upper surface of the cartridge holder 25. This operation plate 6
A cam piece 64 for rotating the magnetic head elevating plate 59 in accordance with the movement in the direction of arrow E or F in FIG.
Are formed so as to rise upward. An operated piece 65 protruding from the magnetic head elevating plate 59 abuts on the cam piece 64.

Then, the operation plate 61 is moved on the upper surface of the cartridge holder 25 in the direction of the arrow E in the figure by a driving mechanism (not shown) provided on the lower surface side of the base 22, and the operated piece 65 is pushed up by the cam piece 64. Accordingly, the magnetic head lifting plate 59 is rotated upward in the figure, and the magnetic head device mounted on the magnetic head lifting plate 59 is rotated upward to the second position. When the magnetic head device is at the second position, the disk recording / reproducing device 20
The disc cartridge 1 is in the state of reproduction and stop. That is, the magnetic head device is thereby rotated in the direction of the second position separated from the magneto-optical disk 5. Also,
The operation plate 61 is moved on the upper surface of the cartridge holder 25 in the direction of arrow F in the figure by the drive mechanism (not shown), and the operated piece 65 is lowered by the cam piece 64 so that the magnetic head elevating plate 59 is moved downward in the figure. Then, the magnetic head device mounted on the magnetic head elevating plate 59 is rotated downward to the first position. That is, the magnetic head device is thereby rotated in the direction of the first position where the information signal is recorded on the magneto-optical disk 5 close to the magneto-optical disk 5.

Also, such a disk recording / reproducing apparatus 2
As shown in FIGS. 3 and 6, a recording unit 66 including a magnetic head device or the like for recording an information signal on the magneto-optical disk 5 is attached to the magnetic head entry opening 28. As shown in FIG. 6, the recording unit 66 includes a magnetic head device 67 for applying a magnetic field to the magneto-optical disk 5, a housing 68 in which the magnetic head device 67 is housed and held, and a magneto-optical disk 5. And a printed circuit board 69 on which a magnetic circuit section and the like for applying a magnetic field are provided.

As shown in FIG. 6, the magnetic head device 67 includes a magnetic head 71 slidably in contact with the magneto-optical disk 5 to apply a magnetic field to the magneto-optical disk 5, a magnetic head support arm 72 to which the magnetic head 71 is attached, and And a connecting arm 73 for rotatably supporting the magnetic head supporting arm 72 and connecting the magnetic head supporting arm 72 and the optical pickup device 37 via a connecting mechanism. The magnetic head 71 has a magnetic head support arm 72 rotatably supported at the distal end side of a connecting arm 73 via a support shaft 74.
It is attached to the tip side. The magnetic head support arm 72 is bent in a letter shape so that the magnetic head 71 can easily enter the apparatus, and the magnetic head 71 is attached to the lower end.

The connecting arm 73 is formed in a substantially L-shape.
A connecting mechanism for connecting the optical pickup device 37 to the end of the base 2 is provided at the end of the base 2 projecting toward the upper surface of the base 2.
The magnetic head support arm 72 has its base end supported by the support shaft 7.
The magnetic head 71, which is rotatably supported by the connecting arm 73 through the base 4, extends to the upper surface side of the base 22, and is attached to the tip of the magnetic head supporting arm 72, faces the objective lens 38 of the optical pickup device 37. Let it. The magnetic head 71 is moved closer to and away from the magneto-optical disk 5 clamped on the disk table 33 by rotating the magnetic head support arm 72 about the support shaft 74 by the above-described elevating mechanism 58.

The housing 68 is made of a synthetic resin material having mechanical strength, and is formed in a rectangular shape having a size large enough to cover the magnetic head entry opening 28 provided in the disk recording / reproducing apparatus 20. A magnetic head device 67 and a printed wiring board 69 are housed and held in the housing 68, and the magnetic head 71 is moved from the window portion 56 of the cartridge holder 25 into the disk cartridge 1 through the window portion 56 of the cartridge holder 25. Cover 2 so that you can enter
The side facing 4 is opened. In the housing 68, the locking portions 30a, 30b, 30c, 30d provided near the magnetic head entry opening 28 of the lid 24 described above.
Locking pieces 75a, 75b, 75c, 75d are provided. The housing 68 may be provided with a shutter on the mounting surface side of the disk recording / reproducing device 20 to the lid 24 to protect the magnetic head device 67 when the recording unit 66 is not used.

The connecting arm 73 and the optical pickup device 37
As shown in FIG. 6, a connecting mechanism 76 for connecting the printed circuit board 69 and the apparatus body side is electrically connected to the engaging pin 77 provided on the end face of the connecting arm 73 on the connecting arm 73 side. And an engaging hole 79 provided on the end face of the optical pickup device 37, and a terminal 78 when the recording section 66 is attached to the magnetic head entry opening 28. And a contact 81 to be contacted. As shown in FIGS. 4 and 5, the engagement hole 79 and the contact 81 of the optical pickup device 37 disposed below the base 22 are provided on the support side of the cartridge holder 25 of the base 22. The first notch 82 provided corresponding to the movement area of
Faced on the top side. The cartridge holder 25 is also provided with a second notch 83 corresponding to the first notch 82 so that the connecting arm 73 can be inserted.

As described above, the recording section 66 is provided with the shutter 29 for closing the magnetic head entry opening 28 of the lid 24 as shown in FIG.
After sliding in the direction of arrow C in FIG. 4 to open the magnetic head entry opening 28, the locking pieces 75a, 7
5b, 75c, 75d are locking portions 30a, 30b,
Locked to 30c, 30d. Then, in the magnetic head device 67, the engaging pin 77 on the connecting arm 73 side is engaged with the engaging hole 79 on the optical pickup device 37 side, so that the optical pickup device 37 and the magnetic head device 67 are connected, and When the terminal 78 on the head device 67 side and the contact 81 are brought into contact with each other, the device main body and the magnetic head device 67 are electrically connected. Then, the magnetic head support arm 72
Are supported by the magnetic head supporting portion 62 of the magnetic head elevating plate 59, and can be moved up and down by the movement of the magnetic head elevating plate 59. Then, the magnetic head 71 is positioned to face the objective lens 38 of the optical pickup device 37.

When recording an information signal on the magneto-optical disk 5 using the recording unit 66, the disk recording / reproducing apparatus 20 having the above-described configuration first sets the shutter 29 of the lid 24 to the magnetic head entry opening 28. Is slid in the direction of arrow C in FIGS. The recording section 66 includes locking pieces 75a, 75b, 75c, 7 provided on the housing 68.
5d are locking portions 30a, 30b provided on the lid 24 side,
It is locked to 30c, 30d and attached to the lid 24. Then, the magnetic head device 67 is mechanically and electrically connected to the optical pickup device 37 via the connection mechanism 76. At the same time, the magnetic head device 67
From the magnetic head entry opening 28 of the device,
The magnetic head support arm 72 is supported in contact with the magnetic head support portion 62 of the magnetic head elevating plate 59 of the elevating mechanism 58.

The magnetic head 71 is moved up and down by the elevating mechanism 58.
The operation plate 61 is moved in the direction of arrow F in FIG.
As a result, the operated piece 65 is lowered, as shown in FIG. 7, so that the magnetic head elevating plate 59 is rotated downward in FIG. 4 to be brought into contact with the main surface of the magneto-optical disk 5. . At the same time, the magneto-optical disk 5 is rotated by the disk rotation operation unit 31. Optical pickup device 3
The magnetic head device 67 connected to the optical pickup device 37 and the optical pickup device 37 is moved in the radial direction of the magneto-optical disk 5, the optical pickup device 37 irradiates the magneto-optical disk 5 with a light beam, and the magnetic head 71 Is applied to the magneto-optical disk 5 to record information signals.

When reproducing the information signal recorded on the magneto-optical disk 5 in a state where the recording section 66 is attached to the lid 24, the disk recording / reproducing apparatus 20 moves the operation plate 61 to an arrow E in FIG. The operated piece 65 is pushed up by the cam piece 64. 4, the magnetic head lifting plate 59 is rotated upward in FIG. 4, and the magnetic head device mounted on the magnetic head lifting plate 59 is rotated upward to be separated from the magneto-optical disk 5. Position. The optical pickup device 37 is fed in the radial direction of the magneto-optical disk 5 and scans a light beam emitted from the optical pickup device 37 to reproduce an information signal recorded on the magneto-optical disk 5. I do. The second position is the position of the magnetic head 71 when the magneto-optical disk 5 is stopped and when the magneto-optical disk 5 is not rotated, in addition to when the reproduction of the magneto-optical disk 5 is performed.

The disk recording / reproducing apparatus 20 reproduces an information signal recorded on the magneto-optical disk 5,
Magnetic head device 6 constituting recording unit 66 as described above
Do not use 7. Therefore, the disk recording / reproducing device 20
Can reproduce information signals recorded on the magneto-optical disk 5 even when the recording unit 66 is detached from the apparatus main body. That is, as shown in FIG. 8, the disk recording / reproducing apparatus 20 slides the shutter 29 in the direction of arrow D in FIG. 8 in order to protect the cartridge mounting section 23 in which the disk cartridge 1 is mounted, the optical pickup device 37, and the like. Then, the magnetic head entry opening 28 is closed. Then, in the disk recording / reproducing apparatus 20, when the disk cartridge 1 is mounted on the cartridge mounting section 23, the optical pickup device 37 is operated to be fed in the radial direction of the magneto-optical disk 5 and emitted from the optical pickup device 37. The information signal recorded on the magneto-optical disk 5 is reproduced by scanning the light beam.

Such a disk recording / reproducing apparatus 20 includes:
Only when an information signal is recorded on the magneto-optical disk 5,
The recording unit 66 is attached to the magnetic head entry opening 28 of the lid 24. Therefore, the disk recording / reproducing device 2
0 indicates that the information signal recorded on the magneto-optical disk 5 is reproduced during normal carrying, but the recording unit 66 can be detached and used, thereby reducing the size and weight of the device during carrying. The portability is improved. When the recording unit 66 is not attached to the disk recording / reproducing apparatus 20, the shutter 29 closes the magnetic head entry opening 28, so that the recording unit 66 is attached to the cartridge attaching unit 23 or the cartridge attaching unit 23. The protection of the disk cartridge 1 and the protection of the optical pickup device 37 are achieved. In particular, in the disk cartridge 1 mounted in the cartridge mounting portion 23, the shutter 11 opens the recording / reproducing openings 9 and 10 and the magneto-optical disk 5 is exposed to the outside. Since the portion 28 is closed by the shutter 29, it is possible to prevent fingerprints such as fingers from adhering to the magneto-optical disk 5 or dust or the like from adhering.

Next, in a second embodiment, a portable disk reproducing apparatus to which the present invention is applied will be described in detail with reference to the drawings. As shown in FIG. 9, the disc reproducing apparatus 100 can be attached to and detached from a station 101 such as a stationary audio apparatus. The information signal can be recorded on the disk only when the portable disk reproducing device 100 is mounted on the stationary disk recording / reproducing device. The disc reproducing apparatus 100 uses the disc cartridge 1 shown in FIGS. 1 and 2 as a recording medium in the same manner as the disc recording / reproducing apparatus 20. The disc reproducing apparatus 100 has substantially the same configuration as the disc recording / reproducing apparatus 20 described above, and therefore, the same members are denoted by the same reference numerals and the detailed description thereof will be omitted.

FIG. 4 and FIG.
As shown in FIG. 2, an optical pickup device 37 and a disk for rotating the magneto-optical disk 5 are provided with a housing 102 and constituting a reproducing unit for reproducing an information signal recorded on the magneto-optical disk 5 in the housing 102. The base 22 provided with the rotation operation unit 31 is provided. On the upper surface side of the base 22, a cartridge mounting portion 23 in which the disk cartridge 1 is mounted is configured. Further, a terminal portion 103 for electrically connecting to the station 101 is provided on a side surface of the housing 102.

Then, a cartridge holder 25 rotatably supported by the base 22 is attached to the base 22. A lid 104 serving as a first opening / closing lid for opening and closing the upper surface side of the base 22 is fixed to the cartridge holder 25 with screws or the like. That is, the lid 104
Is integrally attached to the cartridge holder 25 and is rotated in synchronization with the cartridge holder 25. And
In the disc reproducing apparatus 100, the insertion / removal operation of the disc cartridge 1 is performed when the lid 104 is in the open state in which the lid 104 is turned upward. The disc cartridge 1 includes a lid 10
When the closed state is reached, the base 22 is turned downward.
Is mounted on the cartridge mounting portion 23 configured as described above. In addition, a magneto-optical disk 5 is provided on the cartridge holder side.
A magnetic head device for applying a magnetic field to the magneto-optical disk 5 when recording an information signal is not provided.

The cover 104 is provided with an operation section 27 for executing the operation of the apparatus main body. However, the operation unit 27 is not provided with a recording start button unlike the above-described disc reproducing device 100 because the device is a reproduction-only device. In addition, the cover 104 includes the station 1
A magnetic head entry opening 105 having a rectangular shape into which the magnetic head device provided on the 01 side enters is closed by a shutter 106 as a second opening / closing lid. The magnetic head entry opening 105 is provided corresponding to the window 56 shown in FIG. 4 provided in the cartridge holder 25 described above. The shutter 106 opens the magnetic head entry opening 105 only when the disk reproducing device 100 is loaded in the station 101. On the main surface of the shutter 106,
An engagement projection 107 is provided for engaging the release lever of the shutter 106 on the station 101 side. That is, the shutter 106 is slid in the arrow G or H direction in FIG. In addition, one end of the shutter 106 is
The magnetic head entrance opening 105 may be urged in a direction to close by providing an elastic body that is locked to the shutter side and the other end is locked to the shutter 106 side.

On the other hand, as shown in FIG. 9, the station 101 into which the portable disk player 100 is loaded is
A loading unit 111 into which the disc reproducing device 100 is loaded is provided. The loading unit 111 is provided in the disk playback device 10.
0 is almost the same size as the outer shape. An opening 112 for inserting / removing the disc reproducing apparatus 100 is formed on the front side of the station 101 where the operation unit, the display unit, and the like are provided.

As shown in FIG. 9, a magnetic head device 113 is disposed inside the loading section 111. The magnetic head device 113 slides on the magneto-optical disk 5 to apply a magnetic field to the magneto-optical disk 5, a magnetic head support arm 115 to which the magnetic head 114 is attached, and pivots the magnetic head support arm 115. And a support section 116 for freely supporting the magnetic head support arm 115 on the station 101 side. The magnetic head 114 is a magnetic head supporting arm 1 that is rotatably supported via a support shaft on the tip end side of the support portion 116.
15 attached to the tip side. The magnetic head support arm 115 is bent in a letter shape so that the magnetic head 114 can easily enter the disk reproducing apparatus 100, and the magnetic head 114 is attached to a lower end.

The magnetic head 114 is mounted on the disk reproducing device 1
When 00 is loaded in the loading section 111, the optical pickup device 37 is positioned so as to face the objective lens 38 of the optical pickup device 37 of the disc reproducing device 100. The support section 116 operates during the operation of the optical pickup device 37 that moves in the radial direction of the magneto-optical disk 5 during the recording of the information signal on the magneto-optical disk 5 or the reproduction of the information signal recorded on the magneto-optical disk 5. It is controlled to move in synchronization.

When the disk reproducing device 100 is loaded in the loading section 111, the magnetic head device 113 slides a shutter 106, which will be described later, to open the magnetic head entrance opening 105. 105
Enter more. Then, the magnetic head device 113 is moved close to and away from the magneto-optical disk 5 clamped by the disk rotation operation unit 31 by being rotated by the elevating mechanism 58 of the magnetic head device 113 described above. In such control, when the disc player 100 is loaded into the loading unit 111, the terminal 103 provided on the side surface of the disc player 100 is brought into contact with the contact point 117 provided corresponding to the inside of the loading unit 111. This is performed by achieving conduction.

As shown in FIG. 10, the loading section 111 is provided with a shutter opening lever 118 for opening a shutter 106 for closing the magnetic head entry opening 105 provided on the lid 104. One end of the shutter release lever 118 is attached to the support shaft 1 on the ceiling surface side of the loading portion 111.
21 is rotatably supported in the direction of arrow I or J in FIG.
7 is provided with a concave engaging portion 122. Further, the shutter release lever 118 has one end locked to the shutter release lever 118 and the other end connected to the station 101.
10 is urged in the direction of arrow I in FIG.
Are arranged in the same direction as the loading direction.

Then, as shown in FIG. 11, the shutter release lever 118 is
When 00 is loaded, the engagement portion 122 of the shutter release lever 118 is engaged with the engagement projection 107 of the shutter. Then, as the disc reproducing apparatus 100 is pushed into the loading section 111, the shutter release lever 118 is
1, the shutter 106 is rotated in the direction of arrow J to slide the shutter 106 in the direction of arrow G. Then, the shutter release lever 11
Numeral 8 opens the magnetic head entry opening 105 to allow the magnetic head device 113 to enter the disk reproducing device 100. It should be noted that the disc reproducing apparatus 100 has the loading unit 1
11, the disc player 100
Is taken out by an eject mechanism (not shown). At this time, the shutter release lever 118 is rotated in the direction of arrow I by the elastic body 123, and accordingly, the shutter 106 of the disc reproducing apparatus 100 is slid in the direction of arrow H.

When the disc reproducing apparatus 100 is not mounted on the station 101 and is carried,
The shutter 106 is slid in the direction of arrow H in FIG. 9 to close the magnetic head entry opening 105. In this case, when the disk cartridge 1 is mounted on the cartridge mounting section 23, the magneto-optical disk 5 is clamped and rotated by the disk rotation operation section 31 and the optical pickup apparatus 3 is operated.
7 is fed in the radial direction of the magneto-optical disk 5. Then, the optical pickup device 37 reproduces the information signal recorded on the magneto-optical disk 5 by irradiating the light beam emitted from the signal beam onto the signal recording surface of the magneto-optical disk 5 and detecting the return light. .

When the disc reproducing apparatus 100 is loaded in the loading section 111 of the station 101, the disc reproducing apparatus 100 moves to the magneto-optical disk 5 of the disc cartridge 1 mounted on the cartridge mounting section 23 of the disc reproducing apparatus 100. On the other hand, a new information signal can be recorded. That is, the disc reproducing device 100
When loaded into the loading section 111, the engagement section 122 of the shutter release lever 118 on the station 101 engages with the engagement projection 107 of the shutter 106 provided on the lid 104, as shown in FIGS. Is done. Shutter 106
As the disk reproducing apparatus 100 is pushed into the loading unit 111, the shutter release lever 118 is rotated in the direction of arrow J in FIG. 10, and the shutter 106 is slid in the direction of arrow G to open the magnetic head entry opening 105. . Then, the magnetic head device 113 enters the disk reproducing device 100 through the magnetic head entry opening 105, and the magnetic head support arm 115 of the magnetic head device is supported by the lifting mechanism 58.

When recording an information signal on the magneto-optical disk 5, the magnetic head 114 is moved by the lifting mechanism 5.
Then, the disk is lightly slid on the signal recording surface of the magneto-optical disk 5, and the magneto-optical disk 5 is rotated by the disk rotation operation unit 31. Then, the optical pickup device 37 and the magnetic head 114 synchronized with the optical pickup device 37 are moved in the radial direction of the magneto-optical disk 5 and the optical pickup device 37 irradiates the magneto-optical disk 5 with a light beam. By applying a magnetic field, the information signal is recorded on the magneto-optical disk 5.

It is needless to say that the information signal recorded on the magneto-optical disk 5 can be reproduced even when the disk reproducing apparatus 100 is loaded in the loading section 111 of the station 101. In this case, the disk reproducing device 100 is moved upward by the elevating mechanism 58 so as to separate the magnetic head 114 from the magneto-optical disk 5. Then, the optical pickup device 37 irradiates the signal recording surface of the magneto-optical disk 5 with a light beam and detects the return light to reproduce the information signal.

In such a disk reproducing apparatus 100, when the apparatus is exclusively used for reproducing information signals recorded on the magneto-optical disk 5, a magnetic head apparatus is not mounted on the apparatus. And portability is improved. Also, the disc reproducing apparatus 100
Since the shutter 106 closes the magnetic head entry opening 105 when the portable device is carried, the protection of the cartridge mounting portion 23 and the disk cartridge 1 mounted on the cartridge mounting portion 23 and the protection of the optical pickup device 37 are also considered. And so on. In particular, the cartridge mounting section 23
The disk cartridge 1 mounted on the
6, the recording / reproducing openings 9 and 10 are opened and the magneto-optical disk 5 is exposed to the outside. However, since the magnetic head entry opening 105 is closed by the shutter 106, the magneto-optical disk 5 is opened. 5 prevents a fingerprint such as a finger from adhering, or prevents dust or the like from adhering.

The case where the disc reproducing apparatus 100 is loaded in the station 101 has been described above. However, in the state where the recording unit 66 of the disc recording / reproducing apparatus 20 is detached from the apparatus main body,
Of course, a configuration that can be loaded into the loading section 111 of the “01” may be adopted.

Next, in a third embodiment, a disc recording / reproducing apparatus 130 to which the present invention is applied will be described in detail with reference to the drawings. This disk recording / reproducing apparatus has a recording / reproducing lid that is rotatably supported with respect to an apparatus main body on which a disk rotation operation unit and an optical pickup device are disposed. And is exchangeable. This disc recording / reproducing apparatus uses the disc cartridge 1 shown in FIGS. 1 and 2 as a recording medium, similarly to the disc recording / reproducing apparatus 20 described above. Hereinafter, the same members as those of the disk recording / reproducing device 20 described above are denoted by the same reference numerals, and the details thereof are omitted.

That is, as shown in FIG. 12, the disk recording / reproducing apparatus 130 includes a casing 131,
An optical pickup device constituting a reproducing unit for reproducing an information signal recorded on the magneto-optical disk 5 and a base 132 provided with a disk rotation operation unit for rotating the magneto-optical disk 5 are provided in 31. On the upper surface side of the base 132, a cartridge mounting portion 133 for mounting the disk cartridge 1 is formed.

A recording / reproducing cartridge holder 134 rotatably supported by the base 132 is detachably attached to the base 132. This cartridge holder 14
In order to record an information signal by applying a magnetic field to the magneto-optical disk 5, a magnetic head device is provided in synchronization with the optical pickup device. A lid 135 serving as an opening / closing lid for opening and closing the upper surface side of the base 132 is fixedly attached to such a cartridge holder 134 with screws or the like. That is, the lid 135 is attached to the cartridge holder 13.
4 and is rotated in synchronization with the cartridge holder 134. Then, the disc recording / reproducing device 1
At 30, the operation of inserting and removing the disc cartridge 1 is performed when the lid 135 is in the open state in which the lid 135 is rotated upward. When the lid 135 is closed in a state where the lid 135 is turned downward, the disc cartridge 1 is mounted on the cartridge mounting portion 133 formed on the base 132.

Further, a cartridge holder 136 for exclusive use for reproduction as shown in FIG. 13 is detachably attached to the base 132 in place of a cartridge holder 134 for recording and reproduction. The cartridge holder 136 is not provided with a magnetic head device unlike the cartridge holder 134 for recording and reproduction. A lid 137 is fixedly attached to such a cartridge holder 136 with screws or the like. That is, the lid 137 is integrally attached to the cartridge holder 136, and is rotated in synchronization with the cartridge holder 136.

As shown in FIG. 12, a disk rotation operation section 146 and an optical pickup device 147 are provided on a base 132 provided in the housing 131. The details of the disk rotation operation unit 146 and the optical pickup device 147 are omitted because they are the same as those of the disk rotation operation unit 31 and the optical pickup device 37 of the disk recording / reproducing device 20 described above. The base 132 is provided with a pair of support pieces 138a and 138b that rotatably support the cartridge holders 134 and 136 on both sides on the back side facing the front side where the disk cartridge 1 is inserted and removed. Support shafts 139a and 139b project from the support pieces 138a and 138b in the same direction, and the cartridge holders 134 and 136 are rotatably supported via the support shafts 139a and 139b.

A recording / reproducing cartridge holder 134 rotatably mounted on the upper surface side of the base 132.
The top plate 141 and a pair of cartridge holders 142a formed on both sides of the top plate 141 in a U-shaped cross section so as to hold the disc cartridge 1.
142b. This cartridge holder 134
When the disk cartridge 1 is inserted through the insertion / removal opening 143 on the front side, each of the cartridge holding portions 142a,
The front side and the rear side of the disk cartridge 1 are supported and held by 142b.

The cartridge holder 134 has a shaft hole 14 behind the cartridge holding portions 142a and 142b.
4a and 144b are drilled. These shaft holes 144a, 1
44b is fitted to the above-described support shafts 139a and 139b provided on the back side of the base 132, and rotatably supports the cartridge holder 134. In the cartridge holder 134, a window 145 which is an opening through which a part of the magnetic head device enters the cartridge holder 134 is opened in the top plate 141.

Such a cartridge holder 134 is
When the disc cartridge 1 is inserted and removed in a state where the disc cartridge 1 is rotated upward and separated from the cartridge mounting portion 133, the disc cartridge 1 is held, and when the disc cartridge 1 is rotated downward toward the cartridge mounting portion 133, the disc cartridge 1 is rotated. The held disk cartridge 1 is inserted into the cartridge mounting portion 133.
Attach to. Thus, the cartridge mounting section 1
The disc cartridge 1 mounted on the disc 33 is positioned by positioning pins, height positioning projections, and the like, and is in a state where recording or reproduction is possible.

As shown in FIG. 12, the cartridge holder 134 is provided with an elevating mechanism 148 for elevating the magnetic head device on the top plate 141 as in the disk recording / reproducing apparatus 20. The lifting mechanism 148 moves the magnetic head device attached to the cartridge holder 134 to a first position near the magneto-optical disk 5 of the disk cartridge 1 mounted on the cartridge mounting portion 133 and a second position separated from the magneto-optical disk 5. To the position. Such an elevating mechanism 148 includes a magnetic head elevating plate 149 for rotating the head support arm of the magnetic head device, and an operation plate 151 for moving the magnetic head elevating plate 149 by being moved by a drive motor. Note that the magnetic head elevating plate 149 and the operation plate 151 have the same configurations as the magnetic head elevating plate 59 and the operation plate 61 of the disk recording / reproducing apparatus 20 described above, and thus the details are omitted.

A magnetic head device 150 constituting a recording section is supported and disposed on the cartridge holder 134. The magnetic head device 150 includes a magnetic head 152 slidably in contact with the magneto-optical disk 5 and applying a magnetic field to the magneto-optical disk 5, a magnetic head supporting arm 153 to which the magnetic head 152 is attached, and a magnetic head supporting arm 15
3 and a magnetic head supporting arm 1
A connection arm 154 for connecting the optical pickup 53 and the optical pickup device 147 via a connection mechanism. Magnetic head 15
Numeral 2 is attached to the distal end side of a magnetic head support arm 153 rotatably supported via a support shaft on the distal end side of the connection arm 154. Then, the magnetic head support arm 153
Is bent in a letter shape so that the magnetic head 152 can easily enter the apparatus, and the magnetic head 152 is attached to the lower end. In addition, the magnetic head 152
Is positioned to face the objective lens 38 of the optical pickup device 147. Such a magnetic head 71 is moved close to and away from the magneto-optical disk 5 clamped by the disk rotation operation unit 146 by rotating the magnetic head support arm 153 about the support shaft by the above-described elevating mechanism 148. Is done.

The magnetic head device 150 is provided with a connecting mechanism 155 for connecting to the optical pickup device 37. The same members as those of the coupling mechanism 76 of the disk recording / reproducing device 20 described above are denoted by the same reference numerals, and the details are omitted. As shown in FIGS. 6 and 12 described above, this connecting mechanism 155 is provided on the connecting arm 154 side.
An engagement pin 77 and a terminal 78 are provided on an end face of the connection arm 154, and an engagement hole 79 provided on the end face of the optical pickup apparatus 147 is provided on the optical pickup apparatus 147 side.
And a contact 81 that contacts the terminal 78. As shown in FIG. 12, the engaging hole 79 and the contact 81 on the optical pickup device 37 side provided below the base 22 form a movable area of the optical pickup device 147 on the support side of the cartridge holder 134 of the base 132. The first provided corresponding to
From the notch 156 of the base 132 toward the upper surface side of the base 132.
The first notch 1 is also provided in the cartridge holder 134.
A second notch 157 is provided corresponding to 56 so that the connecting arm 154 can be inserted. In such a magnetic head device 150, the engagement pin 77 on the magnetic head device 150 side is engaged with the engagement hole 79 on the optical pickup device 147 side.
The magnetic head device 150 and the optical pickup device 147 are connected to each other, and the optical pickup device 147 moves in the radial direction of the magneto-optical disk 5 and moves synchronously during recording and reproduction.

On the other hand, the cartridge holder 1 for recording / reproducing
The cartridge holder 136 for reproduction only, which is rotatably attached to the upper surface side of the base 132 which can be replaced with the cartridge 34,
As shown in FIG. 13, a top plate part 161 and a pair of cartridge holding parts 162a and 162b formed by folding back in a U-shape in cross section on both sides of the top plate part 161 so as to hold the disk cartridge 1 are provided. . When the disc cartridge 1 is inserted into the cartridge holder 136 through the front opening 163, the front and back sides of the disc cartridge 1 are supported and held by the cartridge holding portions 162a and 162b.

The cartridge holder 136 has a shaft hole 16 behind the cartridge holding portions 162a and 162b.
4a and 164b are drilled. These shaft holes 164a, 1
64b is fitted to the above-mentioned support shafts 139a and 139b provided on the back side of the base 132, and rotatably supports the cartridge holder 134. The cartridge holder 136 has an opening 16 over its entire surface to reduce the weight of the cartridge holder 136.
5 are provided.

Such a cartridge holder 136 is
When the disc cartridge 1 is inserted and removed in a state where the disc cartridge 1 is rotated upward and separated from the cartridge mounting portion 133, the disc cartridge 1 is held, and when the disc cartridge 1 is rotated downward toward the cartridge mounting portion 133, the disc cartridge 1 is rotated. The held disk cartridge 1 is inserted into the cartridge mounting portion 133.
Attach to. Thus, the cartridge mounting section 1
The disk cartridge 1 mounted on the disk cartridge 33 is positioned by positioning pins, height positioning protrusions, and the like, and is in a state where recording and / or reproduction can be performed. The read-only cartridge holder 136 contains the magnetic head device 15.
0 is not provided, and accordingly, the elevating mechanism 148 of the magnetic head device 150 is not provided. The lid 137 provided with the cartridge holder 136 is a lid 13 for recording and reproduction.
Since the magnetic head device 150 is not provided unlike the fifth embodiment, the thickness and the weight of the cover 137 can be reduced.

The disk recording / reproducing apparatus 130 capable of exchanging the lid 135 having the cartridge holder 134 for recording and reproduction and the lid 137 having the cartridge holder 136 for reproduction only as follows. The replacement of the lid is performed. Hereinafter, an operation of attaching the lid 135 provided with the cartridge holder 134 for recording and reproduction to the base 132 will be described as an example. As shown in FIG. 12, first, shaft holes 144a, 144 of the cartridge holder 134 are formed.
b is fitted to support shafts 139a and 139b provided to protrude from the support pieces 138a and 138b of the base 132.
Then, the cartridge holder 134 is slid in the direction of arrow L in FIG. 12 opposite to the direction in which the support shafts 139a and 139b protrude, so that the support
Shaft holes 144a, 144b up to the root of 39a, 139b
The cartridge holding portions 142a and 142b provided with are slidably supported steadily rotatably with respect to the base 132. When the lid 135 having the cartridge holder 134 is rotatably supported by the housing 131 having the base 132, the magnetic head device 15
Numeral 0 is positioned to face the objective lens 38 of the optical pickup device 147 on the base 132 side. The magnetic head device 150 and the optical pickup device 147 are connected via a connection mechanism 155.

When a new information signal is to be recorded on the magneto-optical disk 5, the magnetic head 152 of the magnetic head device 150 is moved to the first position close to the magneto-optical disk 5 by the lifting mechanism 148. . Then, the optical pickup device 147 and the magnetic head device 150 move in the radial direction of the magneto-optical disk 5 synchronously, the optical pickup device 147 irradiates the magneto-optical disk 5 with a light beam, and the magnetic head 152 generates a magnetic field. By applying
An information signal is recorded on the magneto-optical disk 5. Also,
When reproducing the information signal recorded on the magneto-optical disk 5, the magnetic head device 67 is moved to a position separated from the magneto-optical disk 5 by the lifting mechanism 148. Then, the optical pickup device 147 irradiates the magneto-optical disk 5 with a light beam on the signal recording surface of the magneto-optical disk 5, and reproduces an information signal by detecting the return light.

Also, the cartridge holder 1
When removing the lid 135 provided with the base 34, the base 1
32 spindles 139a and 139b are the cartridge holder 1
34 from the state fitted in the shaft holes 144a and 144b.
The cover 135 is slid in the direction of arrow K in FIG.
The state of being fitted to 4b is released and removal from the apparatus body is performed.

The cartridge holder 13 for reproduction only
In the case of attaching the cover 137 provided with the base 6 to the housing 131 provided with the base 132, the shaft holes 164a and 164b of the cartridge holder 136 shown in FIG.
This is carried out by fitting the support shafts 139a and 139b of the T.32 and sliding them in the direction of arrow L in FIG. Also,
When removing the lid 137, the support shaft 139 is required.
The cover 137 is removed by sliding the cover 137 in the direction of arrow K in FIG. 12 from the state where a and 139b are fitted in the shaft holes 164a and 164b. When the read-only lid 137 is attached to the main body of the apparatus, unlike the case of the recording / reproducing lid 135, the magnetic head device 150 is not attached. Only the reproduced information signal can be performed.

According to the disk recording / reproducing apparatus 130, the purpose of the user, that is, whether the user intends to record the information signal on the magneto-optical disk 5 or whether the information signal recorded on the magneto-optical disk 5 The lid 135 and the lid 137 can be appropriately selected depending on whether the object is to be reproduced. Therefore, the disk recording / reproducing device 130 can be mounted with the magnetic head device without using the lid 135 provided with the magnetic head device 150 when carrying the device for reproducing information signals recorded on the magneto-optical disk 5 exclusively. Since a non-reproduction lid 137 can be used, the size and weight of the apparatus can be reduced, and portability can be improved.

The disk recording / reproducing apparatus 20, disk reproducing apparatus 100, and disk recording / reproducing apparatus 130
Has been described in connection with the case where a disk cartridge in which a magneto-optical disk 5 is housed in a cartridge body for protecting the same is used as a recording medium. However, the present invention is not limited to this. An electronic device using a recording medium such as 5 alone may be used.

[0081]

According to the electronic apparatus using the recording medium according to the present invention, recording is performed on a recording medium detachably mounted at a position opposite to a reproducing unit for reproducing the recording medium provided in the main body of the apparatus. The recording unit may be attached to the device body only when an information signal is recorded on a recording medium. Therefore, according to the present invention, when an information signal recorded on a recording medium is reproduced, the recording section can be removed from the apparatus main body and used, and the size and weight of the apparatus can be reduced. In particular, when the present invention is applied to a small and portable recording / reproducing apparatus, an information signal recorded on a recording medium is reproduced when the apparatus is carried, but the recording section is removed. This improves portability. In addition, when the recording unit is removed from the main body of the device, the shutter closes the window where the recording unit is mounted, so that foreign matter such as dust does not enter the device, and the recording unit and the reproducing unit and the device do not enter. The loaded recording medium is protected.

Further, according to the electronic apparatus using the recording medium according to the present invention, when the information signal recorded on the recording medium is exclusively reproduced, the electronic apparatus can be used as a reproduction-only device. When recording on a recording medium,
By loading a device into a loading unit of another device provided with a recording unit, a new information signal can be recorded on a recording medium. Therefore, since the recording section is not provided in the device main body, the size and weight of the device can be reduced, and the portability can be improved. Further, since a shutter is provided in a window portion provided in a loading portion provided in a loading portion of another device so that foreign matter such as dust does not enter the device, the shutter can be loaded into the reproducing portion and the device. The protected recording medium is protected.

Further, according to the electronic device using the recording medium according to the present invention, the purpose of the user, that is, whether the user intends to record the information signal on the recording medium or whether the information signal recorded on the recording medium is used. Depending on whether or not the object is to be reproduced, a lid for recording and reproduction and a lid exclusively for reproduction can be appropriately selected. Therefore, the present invention is exclusively used for reproduction, which is thinner and lighter than the recording / reproducing lid without using the lid provided for recording / reproducing, when the portable device reproduces information signals recorded exclusively on the recording medium. Can be used, and portability is improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a disk recording / reproducing apparatus.

FIG. 2 is an external perspective view of the disk cartridge as viewed from above.

FIG. 3 is an external perspective view of the disk cartridge viewed from a lower surface side.

FIG. 4 is an exploded perspective view of the disk recording / reproducing apparatus.

FIG. 5 is a plan view for explaining a disk rotation operation unit and an optical pickup device of the disk recording / reproducing apparatus.

FIG. 6 is an exploded perspective view illustrating a relationship between a recording unit including a magnetic head device and the like and an optical pickup device.

FIG. 7 is a longitudinal sectional view of the disk recording / reproducing apparatus schematically showing a state where the recording unit is mounted on the apparatus main body.

FIG. 8 is a longitudinal sectional view of the disk recording / reproducing apparatus schematically showing a state in which the recording section has been removed from the apparatus main body.

FIG. 9 is an external perspective view showing a portable disk reproducing apparatus and a stationary station described in a second embodiment.

FIG. 10 is a plan view showing a state before the portable disk player is loaded into the loading section of the station.

FIG. 11 is a plan view showing a state in which the portable disk player is loaded in the loading section of the station.

FIG. 12 is a perspective view showing an apparatus main body of a disk recording / reproducing apparatus described in a third embodiment and a lid provided with a cartridge holder for recording / reproducing.

FIG. 13 is a perspective view of a lid provided with a cartridge holder exclusively for reproduction.

[Explanation of symbols]

1 disk cartridge, 4 cartridge body, 5
Magneto-optical disk, 8 central opening, 9, 10 recording / reproducing opening, 11 shutter, 20 disk recording / reproducing device, 21 lid, 22 base, 23 cartridge mounting section, 24 lid, 25 cartridge holder, 27
Operation unit, 28 Magnetic head entry opening, 29 Shutter, 30a to 30d locking unit, 31 Disk rotation operation unit, 37 Optical pickup device, 38 Objective lens, 49
a, 49b support piece, 51a, 51b support shaft, 55a,
55b shaft hole, 56 window, 58 elevating mechanism, 66 recording unit, 67 magnetic head device, 68 housing, 75a to 7a
5d locking piece, 76 connecting mechanism, 77 engaging pin, 78
Terminal, 79 engagement hole, 81 contact, 82 first notch, 83 second notch, 100 disk player,
101 station, 130 disk recording / reproducing device 130

Claims (4)

[Claims] An apparatus main body having a reproducing section, a recording section detachably attached to a position facing the reproducing section, and an opening provided in the apparatus main body in which the recording section is arranged so as to face the reproducing section. And a shutter for opening and closing the unit. 2. The apparatus main body includes an optical pickup and an operation unit for rotating a recording medium, and the recording unit includes a magnetic head for applying an external magnetic field to the recording medium. An electronic device using the recording medium according to claim 1. 3. A device main body provided with a reproducing unit, and a recording unit of another device provided when the device main unit is mounted on a loading unit of another device is disposed on a device main body arranged to face the reproducing unit. An electronic device using a recording medium, comprising: an opening formed by the opening and a second opening / closing lid that opens and closes the opening. 4. A holder for holding a recording medium removably supported on a device body provided with a reproducing unit, a recording unit movably mounted on the holder and mounted in synchronization with the reproducing unit, An opening / closing lid that is integrally attached to the holder and that opens and closes a recording medium mounting portion formed in the device main body;