JPH08212658A - Recording medium loading device - Google Patents

Abstract

PURPOSE: To surely eject a cartridge by moving a driving pin of an ejection lever to make an abutting part move the cartridge in its projecting direction from a holder at the time of moving a holding means holding a recording medium from a 2nd position to a 1st position. CONSTITUTION: At the time of ejecting operation for taking out the cartridge 220 from the cartridge holder 4, the driving pin 100 of the ejection lever 98 is operated by a guide member 84 to press the cartridge 220 held by the holder 4 via the ejection lever 98 to the inserting and ejecting side in the direction of arrow P. When the holder 4 is moved to the 1st position, the cartridge 220 is turned in its projection direction from the holder 4 by the ejection lever 98 via the guide member. By turning this lever 98, the cartridge 220 is partly projected out of an inserting and ejecting hole to become the drawable state from the holder 4 by gripping the cartridge 220 with fingers. This cartridge 220 is drawn out of the inserting and ejecting hole so as to finish the ejecting operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention loads a recording medium such as an optical disc on which an information signal is recorded, particularly a recording medium such as a disc cartridge accommodating a disc such as an optical disc, into a mounting portion formed in the apparatus main body. Regarding loading device.

[0002]

2. Description of the Related Art Conventionally, disks such as optical disks, magneto-optical disks, and magnetic disks have been used as information signal recording media. This kind of disc is housed in a cartridge to form a disc cartridge.
A recording and / or reproducing apparatus using such a disc cartridge as a recording medium positions and mounts the disc cartridge in a mounting portion, and records and / or reproduces an information signal on a disc housed in the disc cartridge. The recording and / or reproduction of the information signal is performed via this.

A recording and / or reproducing apparatus using an optical disk or a magneto-optical disk as a recording medium is an optical pickup apparatus or a magnetic head which constitutes an information signal recording and / or reproducing means at a position corresponding to a mounting portion of a disk cartridge. Are installed.

By the way, in a recording and / or reproducing apparatus using a disk such as an optical disk as a recording medium, a loading device is provided for automatically loading a disk cartridge in a mounting portion in the main body of the apparatus. The loading device used for the recording and / or reproducing device includes a cartridge holder into which a disc cartridge is inserted and held, a position at which the disc cartridge can be inserted into and removed from the cartridge holder, and a movement operation mechanism for moving the cartridge holder. Is equipped with.
This moving operation mechanism moves and moves the cartridge holder between a position where the disk cartridge can be inserted and removed and a position where the disk cartridge can be mounted and operated on the mounting portion. That is, the disc cartridge is inserted into and removed from the cartridge holder through the insertion / removal opening provided in the outer casing which constitutes the main body of the apparatus when the cartridge holder is moved to the position where the disc cartridge can be inserted / removed. When the cartridge holder is in a state where the disc cartridge is moved to a position where the disc cartridge can be mounted on the mounting portion, the mounting / dismounting of the mounting portion is performed.

Here, the disc cartridge inserted and held in the cartridge holder in a state in which it is moved to a position where the disc cartridge can be inserted and removed is placed in a direction parallel to the main surface of the disc housed in the cartridge. The holder is moved together with the holder, transferred to a position facing the mounting portion, and then moved in the direction orthogonal to the main surface of the disk to be mounted on the mounting portion.

Further, when performing the eject operation for ejecting the disc cartridge mounted in the mounting portion to the outside of the main body of the apparatus, the loading device first moves the disc cartridge in the direction orthogonal to the main surface of the disc. Then, it is disengaged from the mounting portion, and then is moved together with the cartridge holder in the direction parallel to the main surface of the disc to the insertion / removal side.

[0007]

By the way, in a slot-in type recording and / or reproducing apparatus in which a disk cartridge is loaded through an insertion / removal opening provided in the main body of the apparatus, the disk cartridge is ejected. When doing so, it is necessary to project a part of the disc cartridge from the insertion / removal opening. The insertion / removal opening provided in this type of recording / reproducing apparatus is only provided with an insertion / removal opening approximately equal to the thickness and width of the disk cartridge. Can not. Therefore, at the time of ejecting the disc cartridge mounted in the mounting portion inside the device body, at least a part of the disc cartridge is projected to the outside of the device body through the insertion / removal port, and it is possible to grasp it with fingers. There is a need to. In this way, in order to expose a part of the disc cartridge to the outside of the main body from the insertion / removal port during the eject operation, hold the disc cartridge and increase the movement range of the holder for feeding and operating the disc cartridge. Need to do so.
As a result, the recording / reproducing apparatus itself becomes large.

Further, in the state where a part of the cartridge holder projects to the outside of the main body of the apparatus through the insertion / removal state without mounting the disc cartridge, not only the cartridge holder cannot be protected but also the apparatus. It also becomes impossible to protect the mechanism for recording and / or reproducing the information signal arranged in the main body.

Therefore, a loading device configured such that a part of the disk cartridge held by the cartridge holder is projected to the outside of the device body through the insertion / removal port without the cartridge holder being projected to the outside of the device body. Is used. As this loading device, a recording / reproducing device is used in which the disc cartridge is projected from the holder by utilizing the urging force of a spring when the cartridge holder is moved to a position close to the insertion / removal opening. In this way, the spring is used to cause the disk cartridge to project to the outside of the main body of the apparatus.

However, in the loading device in which the disk cartridge is projected from the cartridge holder by using the spring as described above, the amount of projection from the insertion / removal opening depends on the condition of the surface of the disk cartridge or the deformation of the outer shape. Will not be constant. Further, if the biasing force of the spring for urging the disc cartridge is too large, the disc cartridge may suddenly protrude from the insertion / removal opening during the ejecting operation, and the disc cartridge may pop out from the main body of the apparatus. In order to prevent such a sudden ejection of the disc cartridge, a loading device provided with a brake mechanism is also used, but not only the mechanism is complicated, but also the spring for urging the disc cartridge and the brake of the brake mechanism are used. It is difficult to set the force to an appropriate size, and stable ejecting operation of the disk cartridge cannot be performed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a novel recording medium loading device and recording and / or reproducing device which solves the problems of the conventional loading device.

Another object of the present invention is to reduce the size of a device for loading a recording medium such as a disk cartridge into a mounting portion in the main body of the device and to realize the size reduction of a recording and / or reproducing device itself. is there.

Still another object of the present invention is to reduce the movement range of a holder as a holding means for holding a disk cartridge containing a disk such as an optical disk,
It is an object of the present invention to provide a loading device and a recording and / or reproducing device that can increase the moving range of a disc cartridge, can be reliably loaded in a mounting portion, and can be reliably ejected.

[0014]

In order to achieve the above-mentioned object, a recording medium loading device according to the present invention is formed on a base and has a mounting portion on which a recording medium is mounted and an inserted recording medium. Holding unit and moving between a first position enabling removal of the inserted recording medium and a second position facing the mounting unit, and when the mounting unit is located at the second position. The eject lever is provided with a holding means that is movably arranged in a direction of moving closer to and away from the holding means, and an abutting portion that is movably attached to the holding means and that abuts against the recording medium held by the drive pin and the holding means. When,
And a guide member which is disposed on the base side and which moves and operates the eject lever with respect to the holding means via the drive pin according to the movement of the holding means. In the eject lever of the loading device, when the holding unit holds the recording medium and moves from the first position toward the second position, the drive pin passes through the first path with respect to the guide member. When the holding means holds the recording medium and moves from the second position toward the first position without being moved by the guide member, the drive pin moves to the second position relative to the guide member. It is configured such that the recording medium passes through the path, is moved by the guide member, and is moved by the contact portion in the direction in which the recording medium is projected from the holding means.

The loading device according to the present invention is
The guide member is provided with a ridge portion, the guide member is rotatably disposed on the base side, and is attached so as to be urged by the urging means in the direction of returning to the initial position. Then, when the drive pin passes through the first path with respect to the guide member, the guide pin is pressed against one side of the ridge portion to be rotationally operated against the biasing force of the biasing means, When the holding means is moved to the second position, the drive pin separates from the ridge portion to receive the biasing force of the biasing means and pivotally return to the initial position. further,
The eject lever moves along the other side of the ridge portion of the guide member when the drive pin passes through the second path with respect to the guide member, so that the recording means is held by the holding means via the contact portion. It is configured so that the medium is moved in the direction in which it is ejected from the holding means.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION A loading device according to the present invention will be described below with reference to the drawings together with a recording / reproducing device to which the loading device is applied.

The loading device and the recording / reproducing device to which the loading device is applied described herein use a disc cartridge in which a disc is housed as a recording medium on which an information signal is recorded. That is, a disc as a recording medium is housed in a cartridge, and is mounted on a mounting portion in the recording / reproducing apparatus integrally with the cartridge.

[1] Disc Cartridge Before describing the loading device and the recording / reproducing device to which the present invention is applied, a disc cartridge loaded by the loading device and used as a recording medium of the recording / reproducing device will be described.

The disk cartridges used here are those constructed as shown in FIGS. 1 and 2 in which a magneto-optical disk capable of re-recording an information signal such as a musical tone signal is housed, and a musical tone signal and the like are stored in advance. An information signal is recorded and a read-only type optical disk used only for reproducing the recorded information signal is used, which is configured as shown in FIGS. 1 and 2.

A magneto-optical disk 201 capable of re-recording an information signal has a signal recording layer made of a perpendicular magnetization film formed on a disk substrate made of a transparent synthetic resin material such as polycarbonate having a diameter of about 64 mm. Is configured.

The signal recording layer is locally heated to a Curie temperature or higher by the light beam emitted from the light source of the optical pickup device, and an external magnetic field is applied to the heated portion to record an information signal. Is done. Thus, the recorded information signal is read by irradiating the signal recording layer with a linearly polarized light beam and detecting the rotation of the polarization direction due to the Kerr effect of the return light reflected from the signal recording layer by the photodetector. Be done.

The read-only type optical disc 231 is
A disc substrate similar to the disc substrate of the magneto-optical disc 201 is formed by depositing a reflective layer made of a metal material such as aluminum. This optical disc 231
The recording of the information signal is performed in a fixed manner by forming a fine pit row corresponding to the information signal. The recording of the information signal on the optical disc 231 is performed by transferring a pre-formed pit row to a stamper mounted in the mold device when molding the disc substrate. The information signal recorded on the read-only optical disc 231 is obtained by irradiating the pit train with the light beam emitted from the light source of the optical pickup device and detecting the return light reflected from the optical disc 231 by the photodetector. Read by.

The magneto-optical disc 201 and the optical disc 231 are both rotatably housed in the cartridge bodies 205 and 216 as shown in FIGS. 1, 2, 3 and 4, and are disc cartridges 220 and 221.
Is configured.

A recording type disk cartridge 2 which enables re-recording of an information signal containing the magneto-optical disk 201.
Reference numeral 20 denotes a magneto-optical disk 2 as shown in FIGS.
The cartridge body 205 has a rectangular shape whose outer diameter 01 is a substantially inscribed circle. As shown in FIG. 1, an opening 223 for the magnetic head is formed on the upper surface side of the cartridge body 205 so as to expose a part of the signal recording area of the accommodated magneto-optical disk 201 to the outside over the inner and outer circumferences. Has been done.
On the lower surface side of the cartridge body 205, as shown in FIG. 2, a part of the signal recording area of the magneto-optical disk 201 is also outwardly opposed to the opening 223 for the magnetic head. An opening 222 for the optical pickup device is formed so as to face the above. Further, in the central portion on the lower surface side of the cartridge body 205, the cartridge body 205
A central opening 213 is formed in a circular shape into which a disk table constituting a disk rotation operation mechanism for rotating the magneto-optical disk 201 housed therein is inserted.

The recordable disc cartridge 2
In the cartridge body 205 of No. 20, each opening 223,
A shutter member 206 for opening and closing 222 is attached. The shutter member 206 is formed by punching and bending a thin metal plate, and each opening 22
The shutter plate has a size large enough to cover 3, 222 and a connecting portion that connects the base end portions of these shutter plates, and is formed in a U-shaped cross section. The shutter member 206
A material formed by molding a synthetic resin is also used.
In the shutter member 206, each shutter plate has each opening 22.
3, 222 are attached to the front surface side of the cartridge main body 205 so as to cover them, and the opening portions 223, 222 are opened and closed by moving along the front surface side. The shutter member 206 engages an engagement piece provided at the connecting portion with a movement guide groove 207 formed on the front surface side of the cartridge body 205, so that the engagement piece is guided by the movement guide groove 207 and is stably moved linearly. Is guaranteed.

The recording type disk cartridge 220 constructed as described above is inserted into and removed from the recording / reproducing apparatus with one side surface orthogonal to the front side on which the shutter member 206 moves as an insertion end. That is, the disc cartridge 220
Is inserted into and removed from the recording / reproducing apparatus with the arrow X ₁ direction and the arrow X ₁ direction in FIGS.

On the other hand, as with the recording type disc cartridge 220, the disc cartridge 221 accommodating the reproduction only type optical disc 231 has an outer diameter of the optical disc 231 which is substantially an inscribed circle, as shown in FIGS. 3 and 4. The cartridge body 216 has a rectangular shape. The disk cartridge 221 is closed on the upper surface side of the cartridge body 216 because it is not necessary to make the magnetic head used for recording the information signal face the optical disk 231. On the lower surface side of the cartridge body 216, part of the signal recording area of the optical disc 231 is exposed to the outside over the inner and outer circumferences, and the optical disc 231 is irradiated with a light beam to record information signals recorded on the optical disc 231. An opening 222 is formed to face the optical pickup device for reading out. Furthermore, the cartridge body 2
A circular center opening 213 into which a disk table that constitutes a disk rotation operation mechanism for rotating the optical disk 231 housed in the cartridge body 216 is formed is formed in the center of the lower surface of the cartridge 16.

This reproduction-only disc cartridge 2
Also in 21, the shutter member 217 for opening and closing the opening 222 is attached. This shutter member 217
Has a shutter plate large enough to close the opening 222, and the shutter member 2 is provided on the base end side of the shutter plate.
The cartridge main body 216 is provided with a supporting portion having a U-shaped cross section for movably supporting it. The shutter member 217 is attached so that a part of the support portion 217a is engaged with a movement guide groove 207 formed on the front surface side of the cartridge main body 216 to hold a part of the cartridge main body 216. The shutter member 217 thus attached is moved and operated along the front surface side of the cartridge body 216 in the direction of opening and closing the opening 223.

Similarly to the recording type disc cartridge 220, the reproducing type disc cartridge 221 constructed as described above has a recording / reproducing apparatus with one side surface orthogonal to the front side on which the shutter member 217 moves as an insertion end. Be inserted and removed. That is, the disc cartridge 221
Is inserted into and removed from the recording / reproducing apparatus with the arrow X ₁ direction and the arrow X ₁ direction in FIGS.

The disc cartridges 220 and 221 are provided at approximately the center of the connecting portion of the shutter member 206 attached to the recording type disc cartridge 220 and the support portion of the shutter member 217 attached to the reproduction only type disc cartridge 221. When an eject operation is performed from the recording / reproducing apparatus, the shutter members 206 and 217 moved to the positions where the openings 222 and 223 are opened are moved to the openings 222 and 223, respectively.
An engagement hole 208 with which a shutter closing operation member provided on the side of the device that moves and operates in the direction of closing 223 is engaged.
Has been established.

By the way, each disk cartridge 22
A circular center hole 204 for positioning is formed at the center of the magneto-optical disk 201 and the optical disk 231 housed in the Nos. 0 and 221. This center hole 20
A chucking plate 202 is attached to the central portion where 4 is formed so as to close the center hole 204. The chucking plate 202 is formed of a magnetic metal plate that can be attracted to a magnet. The center hole 204 and the chucking plate 202 are inserted into the cartridge body 20 through the central opening 213 provided in the cartridge bodies 205 and 216.
It is exposed to the outside of 5,216. The center hole 204 is formed with a tolerance of [+0.1 mm, -0.0 mm] and a diameter of 11.0 mm.

Further, each disk cartridge 220, 2
On the lower surface side of the cartridge main bodies 205 and 216 that form part 21, when the disk cartridges 220 and 221 are mounted in the mounting portion in the recording / reproducing apparatus, a pair of positioning pins are engaged by positioning pins provided on the mounting portion side. Hole 20
9, 210 are provided. These positioning holes 20
As shown in FIGS. 2 and 4, the reference numerals 9 and 210 denote the cartridge main body 20 on which the shutter members 206 and 217 are supported.
5, 216 are provided on both sides of the front surface side.
That is, the positioning holes 209 and 210 have the openings 222.
It is provided so as to sandwich. One of the positioning holes 209 is formed with the major axis in the moving direction of the shutter members 206 and 217, and the engagement position with respect to the positioning pin can be adjusted within the range of the major axis. The other positioning hole 210 is formed in a perfect circle and regulates the engagement position with respect to the positioning pin.

Further, the cartridge bodies 205 and 216
As shown in FIG. 2 and FIG. 4, on the back side that faces the front side where the positioning holes 209 and 210 are provided on the bottom side of
A plurality of identification holes 224 are formed. These identification holes 224 are for displaying the type and state of the disks housed in the cartridge bodies 205 and 216, for example, whether or not information signals can be recorded. Then, one identification hole 224 provided in the recording type disk cartridge 220 is used as a detection hole for preventing erroneous recording, and is opened / closed by an erroneous recording prevention member 214 movably mounted in the cartridge body 205. . That is, the identification hole 224 is used as a detection hole for erroneous recording prevention, and the depth of the identification hole 224 is changed by moving the erroneous recording prevention member 214, so that the magneto-optical disk 2 is changed.
The recording / non-recording state of the information signal for 01 is switched. Furthermore, a part of a retracting mechanism for retracting the disk cartridges 220, 221 into the recording / reproducing device is engaged with both sides of one side surface of the cartridge body 205, 216 which is an insertion end side of the recording / reproducing device. An engagement recess 212 is formed.

Then, the disk cartridges 220, 2
In the cartridge main bodies 205 and 216 that form part 21,
As shown in FIGS. 2 and 4, a magneto-optical disc identifying recess 211 or an optical disc identifying recess 218, which indicates that the disc cartridge 220 or 221 is a recording type or a reproduction only type, is formed. These identification recesses 211 and 218 are provided on the lower surface side of the cartridge bodies 205 and 216, on the insertion end side into the recording / reproducing apparatus. The disc identification recesses 211 and 218 are
It is formed with different depths, and due to this difference in depth,
It indicates whether each of the disk cartridges 220 and 221 is a recording type or a reproduction only type.

[2] Disk Cartridge Loading Device and Disk Recording / Reproducing Device Equipped with This Loading Device Next, the recording type disk cartridge 220 or the reproduction-only type disk cartridge 2 configured as described above.
A disc recording / reproducing apparatus equipped with a loading device to which 21 is selectively mounted will be described.

(2-1) Recording / Reproducing Section The disk recording / reproducing apparatus of this embodiment is provided with a recording / reproducing section mounting base 2 as shown in FIGS. The mounting base 2 includes a base plate 15 formed of a flat metal plate and a support frame 16 that supports the base plate 15. Support frame 16
Is formed by molding a synthetic resin, and drives a loading device such as a loading drive motor 34, which will be described later, and a frame portion 16a that is formed upright so as to surround the peripheral edge of the base plate 15. It is composed of a mounting plate portion 16b on which the mechanism is arranged.

On the upper surface side of the base plate 15, a disk cartridge 220 or 22 to be mounted in this recording / reproducing apparatus.
A mounting portion 300 to which 1 is mounted is configured. The disc cartridge 22 to be mounted is mounted on the mounting portion 300.
0 or 221 are engaged with the positioning holes 209 and 210, respectively, and these disc cartridges 220 or 2
Positioning pins 17 and 18 for positioning the mounting position of 21
Is provided. These positioning pins 17 and 18 are
The base plate 15 is formed by outsert molding a synthetic resin material.

As shown in FIG. 6, the magneto-optical disk 201 or the optical disk 231 housed in the disk cartridge 220 or 221 mounted on the mounting section 300 is rotated on the base plate 15 constituting the mounting section 300. A disk rotation operation mechanism is provided. This disc rotation operation mechanism is used for the magneto-optical disc 201 or the optical disc 2.
Disk table 19 on which 31 is positioned and mounted
And a spindle motor 20 that rotates integrally with the magneto-optical disk 201 or the optical disk 231 on which the disk table 19 is mounted. The spindle motor 20 is attached to the lower surface side of the base plate 15 with the drive shaft protruding toward the mounting portion 300 formed on the base plate 15. The disk table 19 is integrally attached to the drive shaft of the spindle motor 20.

The drive shaft of the spindle motor 20 is
It is projected to the mounting portion 300 side through a through hole provided in the base plate 15.

The disc table 19 is formed in a substantially disc shape, and a centering member with which the center hole 204 of the magneto-optical disc 201 or the optical disc 231 is engaged is provided in the central portion. This centering member is provided on the disk table 19 for the magneto-optical disk 201 or the optical disk 2.
As 31 is mounted, it engages with the center hole 204 to center the disc table 19 of the magneto-optical disc 201 or the optical disc 231.

Further, an optical pickup device 21 is arranged on the base plate 15. The optical pickup device 21 includes an optical block that includes a semiconductor laser serving as a light source, an optical component such as a beam splitter, and a photodetector, and a light beam emitted from the semiconductor laser.
Rotationally operated magneto-optical disk 201 mounted on 9
Alternatively, it is configured by an objective lens driving device that controls the position of the objective lens so that the signal recording surface of the optical disc 231 is focused and the recording track is accurately scanned. The optical pickup device 21 is arranged so as to be located in an opening formed in the base plate 15. The optical pickup device 21 is supported on both sides by a guide shaft 22 and a guide piece 23 attached to the lower surface side of the base plate 15,
The magneto-optical disk 20 mounted on the disk table 19 by being guided by the guide shaft 22 and the guide piece 23.
1 or the optical disc 231 is moved in the radial direction. The feeding operation of the optical pickup device 21 is performed by the base plate 15
Is performed via a driving force transmission gear 25 which is rotationally driven by a pickup feed motor 24 arranged on the lower surface side of the.

A magnetic head device 26 for applying an external magnetic field to the magneto-optical disk 201 is connected to the optical pickup device 21 so as to be movable in synchronization with the optical pickup device 21. This magnetic head device 2
6 is configured by attaching a magnetic head element 29 to the tip of a leaf spring protruding from the tip of a head arm 28 in which a pair of conductive leaf springs are embedded in a synthetic resin molded body. The magnetic head device 26 has a head arm 28.
A mounting portion 28a made of synthetic resin provided through a leaf spring protruding toward the base end side of the optical pickup device 21 is provided on the base end side opposite to the tip side of the optical pickup device 21 on which the objective lens is arranged. It is fixed on the mounting base 27 and connected to the optical pickup device 21. At this time, the magnetic head element 29 attached to the tip of the head arm 28 is in a position facing the objective lens of the optical pickup device 21.

By the way, the head arm 28 of the magnetic head device 26 has a base end portion and a mounting portion 28 of the head arm 28.
The magnetic head element 29 is mounted on the disk table 19 as a disk 201 or 2 using a part of a pair of leaf springs located between the disk a and the outside as an elastic displacement portion 30.
It is rotationally displaced in the direction of approaching and separating from 31. A rotary operation arm 31 extends from the base end of the head arm 28. The head arm 28 includes the rotary operation arm 3
When 1 is pressed by the pressing operation means,
The magnetic head element 29 attached to the tip is pivotally displaced about the elastic displacement portion 30 in a direction of separating from the base plate 15.

The head arm 28 includes a rotary operation arm 31.
6 is not pressed, the magnetic head element 29 is displaced in the direction of arrow B in FIG. 6 in the direction of approaching the disk 201 or 231 mounted on the disk table 19. That is, the elastic displacement portion 30 formed on the base end side of the head arm 28 connects the magnetic head element 29 to the disk 2.
01 or 231 is given an elastic force to displace it in the direction of approaching.

The rotation operation of the head arm 28 of the magnetic head device 26 is performed by the head rotation operation plate 32 provided on the mounting plate portion 16b of the support frame 16. The head rotation operation plate 32 includes a support shaft 33 protruding from the base end portion.
Is supported by a pair of support columns that are erected on the mounting plate portion 16b, and is mounted so as to be rotatable around the support shaft 33. The turning operation plate 32 has its tip end extended on the turning operation arm 31 of the head arm 28. The rotating operation plate 32 is urged to rotate in a direction in which the tip end thereof is separated from the rotating operation arm 31 via a torsion coil spring. The rotating operation plate 32 is rotated against the biasing force of the torsion coil spring to press the rotating operation arm 31, and the magnetic head element 29 is placed on the disk table 19 in the disk 201. Alternatively, the head arm 28 is pivotally operated in the direction away from 231.

As described above, the base on which the optical pickup device 21 and the magnetic head device 26 which constitute the recording and / or reproducing means for recording and / or reproducing the information signal on the magneto-optical disk 201 or the optical disk 231 are arranged. As shown in FIG. 6, at each corner of the support frame 16 supporting the plate 15, as shown in FIG.
1a is provided. As shown in FIGS. 5, 7, 29, and 30, these support leg pieces 51a are used for the damper 10
It is mounted on the support base 1 via. The support base 1 is formed by punching and bending a metal material plate to form a rectangular shape as shown in FIG. Further, a damper 10 that supports the support frame 16 so as to be elastically displaceable is disposed at each corner of the support base 1. This damper 10 is, as shown in FIG. 7, a spindle 1 that is composed of screws that are erected through screw holes 9 formed in each corner of the support base 1.
1, a sleeve 12 fitted to the support shaft 11, and a rubber bush 13 fitted to the outside of the sleeve 12.
And the coil spring 1 fitted on the outside of the bush 13.
And 4. The support frame 16 is supported by fitting the mounting hole 51 into the upper end of the bush 13. In this way, the support frame 16 supported on the support base 1 via the damper 10 has the support shaft 11
Elastically displaceable in the axial direction.

On both sides of the support base 1 facing each other,
On the support base 1, a plurality of lock pieces 7 that stand up and support a support frame 16 that is elastically displaceably supported stand up. As shown in FIG. 7, an engaging piece 15 provided on a lifting operation plate 5 described later is provided on one side surface of the lock pieces 7.
An engagement groove 8 with which 5 is engaged is formed.

Further, each corner of the support base 1 is provided with a mounting portion 6 so as to hang down. Support base 1
Is mounted in an outer casing which is fixed to the mounting portion 6 and constitutes the main body of the recording / reproducing apparatus.

As described above, the outer casing in which the support base 1 having the recording / reproducing unit for recording and / or reproducing the information signal on the magneto-optical disc 201 or the optical disc 231 is housed is specifically described. Although not shown in the figure, like the recording and / or reproducing apparatus adopting the well-known slot-in system,
Disc cartridge 220 mounted in the mounting portion 300
Alternatively, an insertion / removal opening for inserting / removing 221 is provided.
This insertion / removal opening is used for the disc cartridge 220 or 221.
Is formed as an opening having a size corresponding to the shape of the side surface on the insertion end side. This insertion / removal opening is closed by a rotating lid 157, as will be described later. This rotating lid 15
7 is formed in a flat plate shape, and is rotatably supported by the outer casing via a pair of left and right support shafts 158 projecting from the upper edges of both sides facing each other.

Further, as shown in FIG. 8, a substantially flat plate-shaped top plate 3 formed of a metal plate is attached to the upper surface side of the support frame 16 supported on the support base 1. As shown in FIG. 8, the top plate 3 has mounting holes 79 and positioning holes 80 formed at respective corners, and fixing screws (not shown) inserted through the mounting holes 79 are provided on the upper surface side of the support frame 16. The support frame 16 is attached by being screwed into the screw holes 52 formed in the corners. In addition, a positioning projection 53 that is provided in the vicinity of the screw hole 52 formed in the support frame 16 is fitted into each positioning hole 80. In the top plate 3, each positioning hole 80 has a positioning protrusion 53.
The fitting position of the mounting position with respect to the support frame 16 can be determined by fitting it to

On the upper surface side of the top plate 3, an eject lever 9 attached to the cartridge holder 4 is attached.
A guide member 84 for controlling the rotation of 8 is provided.
As shown in FIG. 8, the guide member 84 is formed in a substantially trapezoidal shape, and has a fitting hole 85 formed in a corner portion on the base end side, which is formed in a cylindrical shape on the upper surface side of the top plate 3 so as to project in a cylindrical shape. 8
3 and the caulking shaft 83 is caulked, so that the caulking shaft 83 can be pivotally mounted about the caulking shaft 83. Then, the guide member 84 is formed by a tension spring 87 stretched between a spring locking hole 86 formed in the guide member 84 and a spring locking piece 89 formed upright on the upper surface side of the top plate 3. , Is swung about the caulking shaft 83 in the direction of arrow D in FIG. This tension spring 87
The rotation biasing position of the guide member 84 by the guide member 8 is set on the locking piece 90 formed by cutting and raising a part of the top plate 3.
It is regulated by abutting a part of No. 4. further,
On the lower surface side of the guide member 84 facing the top plate 3, a protruding portion 88 is provided so as to project. This ridge 88 is
It projects to the lower surface side of the top plate 3 through a cutout hole 82 formed by cutting out a part of the top plate 3.

Further, a contact piece 81 on which an operation pin 125 of an eject detection lever 123 attached to the cartridge holder 4 described later abuts is formed upright at a substantially central portion on the rear edge side of the top plate 3. (2-2) Cartridge Holder The disc recording / reproducing apparatus to which the present invention is applied is a disc cartridge which is located on the mounting portion 300 formed on the base plate 15 and is inserted into the outer casing through the insertion / removal opening. 22
0 or 221 and a first position where the inserted and held disc cartridge 220 or 221 can be taken out through the insertion / removal opening, and a mounting portion in which the disc cartridge 220 or 221 is positioned above the mounting portion 300. Thirty
The cartridge holder 4 is provided so as to be moved and operated between the second positions that enable the loading and unloading of the disk cartridge 220 or 221 with respect to zero.

As shown in FIGS. 5 and 9, the cartridge holder 4 is formed as a flat plate having a size sufficient to hold the disc cartridge 220 or 221, and is formed by punching and bending a metal plate. Formed. The cartridge holder 4 has cartridge holding portions 96, 96 having a U-shaped cross section formed on opposite sides thereof, and when disposed on the mounting portion 300, the front surface facing the insertion / ejection opening provided in the outer casing. The side is opened, and the disc cartridge 220 or 221 is inserted / removed through the opened portion.

When the disc cartridge 220 or 221 is inserted into the cartridge holder 4 between the cartridge holding portions 96, 96 from the front side facing the insertion / removal opening, the insertion position of the disc cartridge 220 or 221 with respect to the cartridge holder 4 is determined. Positioning pieces 139 and 107 for positioning are provided. One of the positioning pieces 139 is provided on the side of the one cartridge holding portion 96, and the other positioning piece 107 is provided on the other side of the flat surface portion 4a of the cartridge holder 4.
It is formed by cutting and raising a part located on the 6 side inward of the cartridge holder 4.

Further, in the cartridge holder 4, the disc cartridge 2 is provided between the cartridge holding portions 96, 96.
When the shutter member 20 or 221 is inserted, the shutter member 20
6 or 217 is brought into contact with the end portion on the insertion direction side, the shutter member 206 or 217 is moved relative to the disc cartridge 220 or 221 inserted in the cartridge holder 4, and the opening portion 222, 223 is opened. An operation piece 156 is provided. As shown in FIG. 9, the shutter opening operation piece 156 is formed by cutting and raising a part of the side surface of one cartridge holding portion 96. The disc cartridge 22 held by the cartridge holder 4 is provided on the side of the one cartridge holding portion 96.
Shutter member 206 or 21 moved to a position where openings 222 and 223 are opened when 0 or 221 is pulled out.
Disk cartridge 2 that is locked and locked
A shutter closing operation lever 132 that moves relative to 20 or 221 is attached. The shutter closing operation lever 132 is arranged to extend along the side surface of the one cartridge holding portion 96 in the insertion / removal direction of the disk cartridge 220 or 221.

That is, the shutter closing operation lever 132
Is the support shaft support portion 1 formed on the side surface of one cartridge holding portion 96 in the through holes 133 and 133 formed on the base end side.
By inserting the support shaft 136 supported by 40,
It is attached so as to be rotatable around the support shaft 136.
Further, the shutter closing operation lever 132 is urged by a torsion coil spring 137 in which a coil portion is fitted to the support shaft 136 to rotate in the direction in which the tip end side projects inward of the cartridge holder 4. This shutter closing operation lever 132
An engaging projection 134 that engages with an engaging hole 208 provided in the shutter member 206 or 217 is provided so as to project inward of the cartridge holder 4 at the tip end side of the. The engagement protrusion 134 is projected inward of the cartridge holder 4 via a notch 141 formed in the front end edge of the side surface of the one cartridge holding portion 96.

The engagement projection 134 is provided when the disc cartridge 220 or 221 is inserted between the cartridge holding portions 96, 96 and the shutter opening operation piece 156 comes into contact with the front end edge of the shutter member 206 or 217 on the insertion direction side. It engages with an engagement hole 208 provided in the member 206 or 217. The shutter closing operation lever 132 causes the shutter member 206 or 217 to move the disc cartridge 220 or 221 forward when the disc cartridge 220 or 221 is pulled out from the cartridge holder 4.
After the relative movement with respect to No. 21, the torsion coil spring 137 is rotated outward against the urging force of the torsion coil spring 137 to release the engagement of the engagement protrusion 134 with the engagement hole 208.

The cartridge holder 4 is movably supported by the support frame 16 on the outer side surfaces of the pair of cartridge holding portions 96, 96, which are opposite sides of the cartridge holder 4, and the cartridge holder 4 is movable. A pair of support pins 95 for guiding the moving direction of the holder 4 are provided so as to project.

As shown in FIG. 10, the cartridge holder 4 constructed as described above is located between the base plate 15 and the top plate 3 and faces the mounting portion 300 formed on the base plate 15. It is arranged so that. And
The cartridge holder 4 has a first position where the inserted and held disc cartridge 220 or 221 can be taken out through the insertion / removal opening, and the disc cartridge 220.
Or, the mounting portion 3 in which 221 is located above the mounting portion 300
It is movably supported in parallel to the plane of the base plate 15 over a second position that allows the disc cartridge 220 or 221 to be loaded and unloaded with respect to 00.

That is, the cartridge holder 4 has a pair of support pins 95, 95 and 95, 95 projecting from opposite sides of the cartridge holder 4 on the side walls 171 and 172 formed on both sides of the support frame 16 facing each other. Figure 6 on the end face side
Moving guide parts 49, 49 and 4 formed as shown in FIG.
When the support pins 95, 95 and 95, 95 slide on the movement guide portions 49, 49 and 49, 49 by placing the support pins 9, 9, 95 between the first position and the second position. It is possible to move over. Since the top plate 3 faces the movement guide portions 49 with a gap corresponding to the shaft diameter of the support pins 95, the support pins 95 placed on the movement guide portions 49 are prevented from falling off, and The cartridge holder 4 is prevented from falling off the support frame 16.

The movement guide portion 49 is formed to have a length that allows the cartridge holder 4 to move between the first position and the second position. Further, the movement guide portion 49 guides the movement of the cartridge holder 4 in a direction parallel to the base plate 15 by supporting each support pin 95.

Further, when the cartridge holder 4 is at the second position facing the mounting portion 300 on the base plate 15, it is movably supported in the direction perpendicular to the mounting portion 300.

That is, at the rear end of the guide portion 49, that is, the end portion when the cartridge holder 4 moves in the second position direction, a vertical guide perpendicular to the mounting portion 300 formed on the upper surface of the base plate 15. The groove 50 is formed. The vertical guide groove 50 is moved to the inner end of each moving guide portion 49, that is, the rear end portion, and is further moved to the rear side so as to be separated from the moving guide portions 49.
5 is allowed to move downward, and the positions of these support pins 95 in the direction parallel to the base plate 15 are restricted.

The flat surface 4a of the cartridge holder 4 is provided with an opening 92 for allowing the head arm 28 of the magnetic head device 26 arranged on the base plate 15 to rotate.

The flat surface portion 4a of the cartridge holder 4
A cartridge insertion detection lever 119 is rotatably attached to the inner surface side of the. The cartridge insertion detection lever 119 has a support hole 120 formed at a base end portion thereof and a support shaft 104 that is erected so as to hang down from the lower surface side of the cartridge holder 4 and is rotatable about the support shaft 104. Supported by. Then, the detection lever 119 positions the contact portion 122 provided at the front end portion on the other cartridge holding portion 96 side, and twists not shown in the direction of arrow F in FIGS. 9 and 10 about the support shaft 104. It is urged to rotate by a coil spring. At the rotationally biased position of the detection lever 119, the contact portion 122 is set to the flat surface portion 4 a of the cartridge holder 4.
The rotation position is regulated by abutting on a positioning piece 107 formed by cutting and raising a part of. This detection lever 11
9, a detection protrusion 121 that abuts the disc cartridge 220 or 221 inserted into the cartridge holder 4 and detects the insertion of the disc cartridge 220 or 221 is provided on one side surface facing the insertion direction side of the disc cartridge 220 or 221. It is set up. That is, when the disc cartridge 220 or 221 is inserted into the cartridge holder 4, the cartridge insertion detection lever 119 detects the disc cartridge 220 or 22.
1 detects that the disc cartridge 220 or 221 is inserted into the cartridge holder 4 by pressing the detection protrusion 121 by 1 and rotating it around the support shaft 104 against the biasing force of the torsion coil spring. To do.

Further, the flat surface portion 4 of the cartridge holder 4
On the inner surface side of a, a malfunction prevention lever 114 that extends in parallel with the cartridge holding portion 96 and prevents malfunction of the cartridge holder 4 is rotatably attached. The malfunction preventing lever 114 has a support hole 115 formed at a base end thereof, and a support shaft 103 which is erected so as to hang down to the lower surface side of the cartridge holder 4 is inserted through the support hole 115 and is rotatable about the support shaft 103. It is supported. The malfunction prevention lever 114 has the engaging claw 11 formed at the tip thereof.
7 is opposed to the insertion direction of the disk cartridge 220 or 221, and the tip end portion provided with the engaging claw 117 is rotated by a torsion coil spring (not shown) in the arrow E direction in FIG. 9 toward the inner side of the cartridge holder 4. It is energized. This malfunction prevention lever 114 is provided with a locking projection 1 provided on one side surface.
By bringing 18 into contact with the contact portion 122 provided at the tip of the cartridge insertion detecting lever 119, the rotationally biased position by the torsion coil spring is regulated. Further, a malfunction regulating protrusion 116 is provided on the other side surface of the tip of the malfunction prevention lever 114 opposite to the side where the locking claw 117 is projected. In the malfunction prevention lever 114, the cartridge holder 4 has the disk cartridge 220 or 2 in a state where the disk cartridge 220 or 221 is not inserted.
When it is attempted to be moved from the first position on the insertion / removal side where the insertion / removal of 21 is possible in the second position direction in the apparatus main body, the malfunction regulating protrusions 116 rise up on both sides of the support frame 16 facing each other. The side walls 171 and 172 thus formed are brought into contact with the malfunction restricting piece 165 provided on one inner surface of the side wall 171, 172,
The movement of the cartridge holder 4 in the second position direction is restricted. That is, the malfunction prevention lever 114 is provided in the cartridge holder 4 with the disk cartridge 220 or 221.
The loading operation is restricted when the is not inserted.

The malfunction prevention lever 114 is
When the disk cartridge 220 or 221 is inserted into the cartridge holder 4, the cartridge insertion detection lever 11
9 is a counter arrow F in FIG. 9 against the biasing force of the torsion coil spring.
The contact portion 1 of the malfunction regulating protrusion 116 when rotated in the direction.
When the contact with 22 is released, it is rotated inward of the cartridge holder 4 in the direction of arrow E in FIG. 9 under the biasing force of the torsion coil spring. At this time, the malfunction prevention lever 114 is provided with an engaging claw 117 provided at the tip portion.
Is engaged with the engagement recess 212 provided in the disk cartridge 220 or 221 inserted in the cartridge holder 4, and the malfunction prevention protrusion 116 is moved to a position where it does not abut against the malfunction prevention piece 165.

Then, as shown in FIG. 6, the cartridge holder 4 is mounted on the base plate 15 on the outer side of the side walls 171, 172 which are formed on both sides of the support frame 16 facing each other. On the other hand, a plurality of support levers 65 for supporting the cartridge holder are attached so as to be movable in the direction of approaching and separating. These support levers 65 are provided at their base ends and have a cylindrical shaft insertion portion 7
0 is inserted into and supported by a support shaft 71 erected on the side walls 171 and 172 of the support frame 16, and is rotatably mounted about the support shaft 71. At this time, the support lever 65
Are attached to the side walls 171 and 172 of the support frame 16 such that the tip end side faces the movement guide portion 49. An engaging recess 67 is formed at the tip of each support lever 65, with which the support pins 95 projecting from both sides of the cartridge holder 4 are engaged. These engaging recesses 6
7 is formed as a recess in which the front end surface of the support lever 65 is opened.

Further, each supporting lever 65 is urged by a torsion coil spring 66 so that its front end portion side is turned downward in the direction of arrow A in FIG. In this torsion coil spring 66, the coil portion is wound around the shaft insertion portion 70, and one arm portion is attached to the side wall 17 of the support frame 16.
6, the supporting lever 65 is attached by being locked to the locking piece 72 protruding from the supporting lever 65 and the other arm part being locked to the locking projection 59 protruding from the supporting lever 65. It is rotationally biased in the direction of arrow A.

(2-3) Cartridge Holder Lifting / Operating Mechanism The cartridge holder raising / lowering mechanism is arranged on the upper surface side of the support frame 16 in which a recording and / or reproducing unit for recording and / or reproducing information signals on the magneto-optical disk 201 or the optical disk 231 is formed. On the installed top plate 3, FIG. 5, FIG. 10, FIG.
As shown in FIG. 0 and FIG. 31, the cartridge holder 4 moved to a position facing above the mounting portion 300 is mounted on the mounting portion 3
A lift operation plate 5 that constitutes a lift operation mechanism that moves up and down with respect to 00 is disposed. The up-and-down operation plate 5 is moved and operated in parallel with the moving direction of the cartridge holder 4 between the first position and the second position, and is formed by bending a metal plate in a U-shaped cross section. ing.

A pair of support pieces 153 bent inward are formed at the lower end edges of the side walls 5a and 5b on both sides of the lifting operation plate 5 which face each other. Lifting operation plate 5
Are movably supported with respect to the support frame 16 by engaging the respective support pieces 153 with the lower surface side of the support frame 16.

Side walls 5 on both sides of the lifting operation plate 5 facing each other.
a and 5b have a pair of openings 1 arranged in parallel in the moving direction.
51 is provided. An operation pin 68 provided on a support lever 65 that supports the cartridge holder 4 is inserted into these openings 151. As shown in FIG. 11, the operation pin 6 provided on the support lever 65 is provided in each opening 151.
An inclined cam portion 152 on which the 8 is placed is formed. These inclined cam portions 152 are used for the disc cartridge 220.
Alternatively, it is formed so as to gradually descend from the insertion side of 221 toward the inner side. By providing the inclined cam portion 152 in this way, when the lifting operation plate 5 is moved with respect to the support frame 16, the operation pin 68 is moved along the inclined cam portion 152 as shown in FIG. The support lever 65 is rotated. Support lever 6
When the cartridge holder 4 moved to the position facing the mounting portion 300 by rotating the mounting portion 5
It is moved in the direction of approaching and separating from 00.

When the raising / lowering operation plate 5 is in a state of being moved inward of the outer casing in which the cartridge holder 4 has been moved to a position separated from the mounting portion 300, the side walls 5a facing each other,
As shown in FIG. 11, an engaging piece 155 formed by bending the lower end edge of 5b outward is engaged with the engaging groove portion 8 of the lock piece 7 of the support base 1 to support the support frame 16. Fix it on the stand 1.

When the lifting operation plate 5 moves toward the outer side toward the insertion / removal side of the outer casing, the operation pin 68 moves toward the lower side of the inclined cam portion 152, and the support lever 65 twists. The urging force of the coil spring 66 is received and the coil spring 66 is rotated in the arrow A direction in FIGS. By the rotation of the support lever 65, the cartridge holder 4 held at the position separated from the mounting portion 300 is vertically lowered to the mounting portion 300 side, and the disc cartridge 220 or 221 held by the cartridge holder 4 is It is mounted on the mounting unit 300. At this time, the cartridge holder 4
Is a torsion coil spring 66 that urges the support lever 65 to rotate.
The disc cartridge 220 or 221 held by the mounting portion 3 is pressed and urged toward the mounting portion 300 side by the urging force of the mounting portion 3
Pressed and supported at 00.

When the raising / lowering operation plate 5 is at the position where the cartridge holder 4 is moved to the position where the cartridge holder 4 is lowered toward the mounting portion 5, as shown in FIG. 23, the lock piece of the support base 1 of the engaging piece 155 is provided. The engagement with the support frame 16 is released.
Is in a so-called floating state in which the damper 10 can move with respect to the support base 1 by elastic displacement.

When the raising / lowering operation plate 5 moves further from the position where the cartridge holder 4 is lowered toward the mounting portion 300 toward the outside of the outer casing, as shown in FIGS. 24 and 25, the magnetic head is moved. The head arm 28 of the device 26 is brought into sliding contact with the magneto-optical disc 201 mounted on the disc table 19 by utilizing the elastic displacement force of the elastic displacement portion 30.

That is, the elevating operation plate 5 has the ridge portion 145 for pressing the head rotation operation plate 32. The protruding portion 145 projects inward on the lower surface side of the elevating operation plate 5, and the elevating operation plate 5 moves the cartridge holder 4 away from the mounting portion 300 from the mounting portion 30.
When it is in the position lowered to the 0 side, the head rotation operation plate 32 is pressed and supported downward. Then, when the lifting operation plate 5 moves further forward from the position where the cartridge holder 4 is lowered to the mounting portion 300 side, the protrusion 145 separates from the head rotation operation plate 32, and this head rotation operation plate The pressing operation of 32 is released. When the pressing and supporting of the head rotation operation plate 32 by the protruding portion 145 is released, the head arm 28 is rotated by receiving the elastic displacement force of the elastic displacement portion 30, and the magnetic head element 29 attached to the tip portion is moved. The magneto-optical disk 201 on the disk table 19 is brought into sliding contact.

(2-4) Driving Mechanism Next, a driving mechanism for moving the cartridge holder 4 and the raising / lowering operation plate 5 to load the disk cartridge 220 or 221 inserted and held in the cartridge holder 4 will be described.

As shown in FIG. 6, this drive mechanism includes a rotating body 45 arranged on the mounting plate portion 16b of the support frame 16 and a drive motor 34 for rotating the rotating body 45.
It has. The rotator 45 is rotatably supported via a support shaft 46 that is erected on the mounting plate portion 16b, and is approximately 360.
It is rotated over a range of degrees. The drive shaft of the drive motor 34 for rotating the rotating body 45 has a drive pulley 3
5 is attached. An endless belt 36 is wound around the drive pulley 35 with a driven pulley 37 rotatably attached to the support frame 16 via a support shaft 39. The driven pulley 37 includes the first transmission gear 3
8 is integrally formed. This first transmission gear 38
Engages with a second transmission gear 40 rotatably attached to the support frame 16 via a support shaft 41. A third transmission gear is integrally formed with the second transmission gear 40. This third transmission gear corresponds to the support frame 1
6 is in mesh with a fourth transmission gear 42 rotatably attached via a support shaft 44. A fifth transmission gear 43 is integrally formed with the fourth transmission gear 42. The fifth transmission gear 43 meshes with a gear portion 47 formed on the outer peripheral portion of the rotating body 45. At a position eccentric from the axial center of the main surface portion of the rotating body 45, a movement operation pin 48 inserted and engaged with a cam groove 112 provided in the flat surface portion 4a of the cartridge holder 4 is erected. The cam groove 112 formed in the cartridge holder 4 is, as shown in FIG.
A linear cam portion 112a extending in a direction orthogonal to the moving direction of the cartridge holder 4 and the cam portion 112a.
And a semicircular arc-shaped cam portion 112b that is continuous with the above. The movement operation pin 48 is the first one located on the insertion / removal side of the cartridge holder 4 provided in the outer casing.
When it is in a state of being moved to the position side of, the cam groove 112 is placed at a position engaged with the linear cam portion 112a.

When the disk cartridge 220 or 221 is inserted into the cartridge holder 4 and the drive motor 34 starts to rotate and the loading operation is started, the rotor 45 is rotated as shown in FIGS. 14 to 18. The moving operation pin 48 has a linear cam portion 112 of the cam groove 112.
The cartridge holder 4 is moved along a, and the cartridge holder 4 is moved in the second position direction facing the mounting portion 300 inside the outer casing.

The rotating body 45 is indicated by an arrow K _{1 in} FIG.
180 degrees from the initial state to move in the direction
When 8 is moved to the inner side of the outer casing, as shown in FIG. 18, the cartridge holder 4 is moved to the second position facing above the mounting portion 300. After that, when the rotating body 45 is further rotated in the direction of arrow K _{1 in} FIG. 18,
The movement operation pin 48 is shown in FIGS. 18, 20, 22, and 2.
As shown in FIG. 4, the cam portion 1 having an arc shape of the cam groove 112
12b, and further 18 along this cam portion 112b
Rotate 0 degrees. At this time, since the cam portion 112b is formed in an arc shape that coincides with the movement locus of the movement operation pin 48, the cartridge holder 4 is maintained in the second position without being moved. .

The moving operation pin 48 is an engaging portion provided on the elevating operation plate 5 when the cartridge holder 4 is moved to the second position, that is, when the cartridge holder 4 is located at the position moved inward of the outer casing. 146. At this time, the lifting operation plate 5
The support lever 65 is rotated upward, and is fixedly supported by the support frame 16, as will be described later. The engaging portion 146 with which the movement operation pin 48 is engaged
As shown in FIG. 11, a pair of front and rear engagement pieces 147, 14 positioned on the rear side of the elevating operation plate 5 and hanging downward.
It is configured with a gap between 8.

After the cartridge holder 4 is moved to the second position facing the mounting portion 300, the rotary body 45 is further rotated in the direction of arrow K _{1 in} FIG. 18, and the movement operation pin 48 is formed in the arc shape of the cam groove 112. When moving along the cam portion 112 b of the cartridge holder 112, the moving operation pin 48 moves the lifting operation plate 5 to the insertion / removal side of the cartridge holder 4 via the engaging portion 146 as shown in FIGS. 18 to 24. Move it to the front side.

In the disk cartridge loading device according to the present invention, the cartridge holder 4 and the lifting operation plate 5 are moved and operated by the drive motor 34 which is a common drive source.

Further, in this loading device,
The movement direction when the cartridge holder 4 is moved in the second position direction facing the mounting portion 300, and the lifting operation plate 5 rotates the support lever 65 to bring the cartridge holder 4 close to the mounting portion 300 side. The moving directions when moving in the opposite directions are opposite to each other.

The rear side portion of the support frame 16 is shown in FIG.
As shown in, a lock lever 56 that locks the raising / lowering operation plate 5 is rotatably disposed via a support shaft 54 that is planted in a rear side portion of the support frame 16. The lock lever 56 has an operation pin 57 facing the rear end edge of the cartridge holder 4, and a locking portion 59 for locking the elevating operation plate 5 at the rear side position. The lock lever 56 is operated by a torsion coil spring 55 so that the operation pin 57 is
Is urged to rotate in the direction of moving the cartridge toward the front side close to the cartridge holder 4.

The lock lever 56 has a rear end edge of the cartridge holder 4 when the cartridge holder 4 is located closer to the first position on the insertion / removal side than the second position facing the mounting portion 300. Since it is separated from 57, it is rotated by the biasing force of the torsion coil spring 55 and is biased to the initial position. The locking portion 59 of the lock lever 56 locks the locking pin 154 that is hung from the lower surface on the rear side of the elevating operation plate 5 to prevent the elevating operation plate 5 from moving to the front side. Support frame 16 for operating plate 5
Hold it in place. When the cartridge holder 4 reaches the second position, the lock lever 56 is operated by the operation pin 57 by the rear end edge of the cartridge holder 4.
Is pressed and rotated against the biasing force of the torsion coil spring 55. At this time, the locking portion 59 of the lock lever 56
Releases the lock of the lifting operation plate 5 with respect to the locking pin 154, and enables the lifting operation plate 5 to move to the front side.

Further, first, second and third position detecting switches 62, 63 and 64 are attached to the rear side portion of the support frame 16 via a printed circuit board 61. The first and second position detection switches 62 and 63 are for detecting the position of the elevating operation plate 5, and are arranged in front and rear with the pressing element facing upward.
These first and second position detection switches 62 and 63 are
When the raising / lowering operation plate 5 is at the position fixedly supported by the support / support base 1, neither is in a state of being pressed, as shown in FIGS. 20 and 21. Of the first and second position detection switches 62 and 63, the first position detection switch 62 located on the rear side is shown in FIGS.
As shown in FIG.
The switch pressing projection 1 provided on the rear side of the elevating operation plate 5 when the switch is in the position of being lowered to the mounting portion 300 side.
It is pressed by 44. This switch pressing protrusion 14
Reference numeral 4 projects downward from the lower surface of the lifting operation plate 5.

Further, as shown in FIGS. 24 and 25, both the first and second position detection switches 62 and 63 are
The lifting operation plate 5 is the magnetic head element 2 of the magnetic head device 26.
9 is moved to the recording mode position where it is slidably contacted with the magneto-optical disk 201, the switch pressing protrusion 144
Is pressed by.

The third position detection switch 64 is for detecting the position of the cartridge holder 4, and is arranged with the pressing element facing the rear side. This third
When the cartridge holder 4 is located on the rear side of the inner side of the outer casing than the first position where the disc cartridge 220 or 221 can be inserted and removed, as shown in FIGS. The cartridge holder 4 is not pressed. The third position detection switch 64 is a switch provided on the rear side of the cartridge holder 4 when the cartridge holder 4 is at the first position, as shown in FIGS. 12, 13 and 14. The pressing operation is performed by the pressing piece 94.
The switch pressing piece 94 is formed by bending a part of the rear end side portion of the cartridge holder 4 to the side.

Further, the cartridge holder 4 has a structure shown in FIG.
As shown in, the eject detection lever 123 is rotatably attached. This eject detection lever 12
A support shaft 124 is provided at a central portion of the cartridge holder 4. The support shaft 105 is erected so as to hang down on the lower surface side of the cartridge holder 4, and is rotatably supported about the support shaft 105. The eject detection lever 123 has a contact portion 1
26 toward the rear side of the cartridge holder 4, and the contact portion 1
26 is rotated and biased in the direction of arrow G in FIG. 9 by a not-shown tension spring, and the operating pin 125 is brought into contact with the front edge of the through hole 110 provided in the cartridge holder 4 for positioning. Has been done. When the cartridge holder 4 is in the state where the cartridge holder 4 is moved to the first position, the eject detection lever 123 brings the operation pin 125 into contact with the contact piece 81 of the top plate 3 and resists the biasing force of the tension spring. It is being rotated.

Further, as shown in FIG. 9, a moving operation pin guide lever 128 is rotatably attached to the cartridge holder 4. The movement operation pin guide lever 128 allows the support shaft 106, which is erected so as to hang down to the lower surface side of the cartridge holder 4, to pass through the support hole 129 on the base end side, and is rotatable around the support shaft 106. It is supported. In this movement operation pin guide lever 128, the tip end portion is directed to the side of the cartridge holder 4, the contact projection 131 provided on the side edge portion is directed to the front side of the cartridge holder 4, and the tip end side is directed to the cartridge holder 4. 9 is rotated and biased by a torsion coil spring (not shown) in the direction of arrow H in FIG. This movement operation pin guide lever 128 is provided in the cam groove 1
It is located below the notch 113 formed at a position facing the 12 linear cam portions 112b, and is positioned so as to cover the notch 113 by one side. In addition, the movement operation pin guide lever 128 has the contact protrusion 1
31 is opposed to the contact portion 126 of the eject detection lever 123.

Further, the moving operation pin guide lever 128
When the cartridge holder 4 is at the first position, since the eject detection lever 123 is rotated in the direction of arrow G in FIG. 9 by the tension spring, it can be rotated forward. Therefore, at this time, when the disc cartridge 220 or 221 is inserted into the cartridge holder 4 and the cartridge holder 4 is about to be moved toward the second position direction, the movement operation pin guide lever 128 moves to the movement operation pin 48. The movement operation pin 48 is brought into contact with the cartridge holder 4 and rotated forward with respect to the cartridge holder 4.
Of the cartridge holder 4 can be moved into the notch 113, and the cartridge holder 4 can be moved to the rear side.

When the moving operation pin 48 enters the notch 113, the cartridge holder 4 is moved rearward, whereby the pressing operation on the third position detecting switch 64 is released. The loading operation is started by releasing the pressing operation on the third position detection switch 64.

Then, this moving operation pin guide lever 1
When the cartridge holder 4 is located closer to the second position on the inner side of the outer casing than the first position, the eject detection lever 123 is returned to the initial position, so that the cartridge is not rotated forward. Be blocked. Therefore, at this time, the movement operation pin guide lever 128 prevents the movement operation pin 48 from entering the notch 113.

(2-5) Eject Lever Next, the eject lever 98 for ejecting the disk cartridge 220 or 221 held by the cartridge holder 4 will be described.

As shown in FIG. 9, the eject lever 98 is provided with a drive pin 100 and an abutment pin 101 which is an abutment portion for the disc cartridge 220 or 221 held by the cartridge holder 4. It is rotatably attached to the upper surface side. That is, the eject lever 98 supports the through hole 99 formed at the base end side where the drive pin 100 is provided on the support shaft 102 protruding from the flat surface portion of the cartridge holder 4, and the support shaft 102 is used as a center. It is rotatably supported. When the eject lever 98 is rotated in the direction in which the contact pin 101 is on the front side, the eject pin 98 is held by the cartridge pin 4 by the contact pin 101.
Push 0 or 221 forward.

The guide member 84 attached to the top plate 3 moves the eject lever 98 via the drive pin 100 in response to the movement of the cartridge holder 4 between the first position and the second position. Rotate with respect to 4.

Drive pin 1 provided on the eject lever 98
When the cartridge holder 4 moves from the first position to the second position as shown in FIGS. 14 to 18, 00 passes through the first path with respect to the guide member 84, and Move without being moved. That is, when the drive pin 100 passes through the first path with respect to the guide member 84, the guide member 84 is driven by the drive pin 100 to the one side surface 8 of the protrusion 88.
When the cartridge holder 4 reaches the second position by pressing the 8a side against the urging force of the tension spring 87 in the direction indicated by the arrow D in FIG. By being separated from each other, the urging force of the tension spring 87 causes the urging force to return to the initial position.

The drive pin 100 is shown in FIGS.
6 to 28, when the cartridge holder 4 moves from the second position side toward the first position side, the cartridge holder 4 passes through the second path for the guide member 84 and is moved by the guide member 84. The contact pin 10
1 rotates the eject lever 98 in a direction in which the disk cartridge 220 or 221 is pressed by 1. That is,
When the drive pin 100 passes through the second path with respect to the guide member 84, the drive pin 100 is moved with respect to the cartridge holder 4 along the other side surface 88b of the protrusion 88 of the guide member 84 which is moved to the initial position. By moving the drive pin 100 following the protrusion 88 of the guide member 84, the eject lever 98 is rotated, and the contact pin 101 is rotated.
The disc cartridge 220 or 221 is ejected from the cartridge holder 4 via.

(2-6) Lid Mechanism Next, a lid mechanism for opening and closing the insertion / removal opening for inserting / removing the disc cartridge 220 or 221 provided in the outer casing into / from the cartridge holder 4 will be described.

Support frame 16 having a recording / reproducing unit
Is a rotating lid 157 which constitutes a lid mechanism for opening and closing the insertion / removal opening.
A lid control lever 73 is provided for controlling the rotation of the rotation lid 157 while rotating the. This control lever 7
3 is rotated by a support pin 95 protruding from the side surface of the cartridge holder 4 in accordance with the movement position of the cartridge holder 4.

Then, the lid control lever 73 is located at a position close to the insertion / removal opening provided in the outer housing,
As shown in FIGS. 2 and 35, a support shaft 74 that is planted on one side surface of the central portion is attached via the frame portion 16a of the support frame 16. That is, the lid control lever 73
Is attached to the inner surface of one side wall 171 of the support frame 16 so as to be rotatable around the support shaft 74.

This lid control lever 73 is used for the support frame 1
When it is attached to the shaft 6, an inclined surface portion 78 is formed on the upper surface on the rear side, which is located inside the outer casing with the support shaft 74 as the center. An engaging recess 75 is formed on the front side of the support shaft 74, which is located on the insertion / removal side. As shown in FIG. 6, the lid control lever 73 is provided with an inclined surface portion by a compression coil spring 77 provided between a rear end portion and a support piece 77a protruding from the inner surface of one side wall 171 of the support frame 16. It is urged to rotate in the direction of arrow C in FIG. 6 so that 78 is located above.

Further, the inclined surface portion 78 is formed by the lid control lever 73.
Is formed by bulging the middle part of the upper surface of the rear side of the, and when the lid control lever 73 is in the initial position urged by the compression coil spring 77, the movement guide formed on the upper end surface of the frame portion 16a. It projects above the portion 49. When the support pin 95 passes over the inclined surface portion 78, the lid control lever 73 is provided with the compression coil spring 77 about the support shaft 74 so that the inclined surface portion 78 is flush with the upper surface of the movement guide portion 49. Figure 35 against power
It is rotated in the direction of the middle arrow W. Lid control lever 7 at this time
The rotation range of 3 is the range indicated by the arrow θ ₁ in FIG.

The engagement concave portion 75 formed on the front side of the lid control lever 73 is opened rearward to support pin 95.
Has a width corresponding to the outer diameter of the lower surface 7 in the initial position.
5a is located below the upper surface of the movement guide portion 49. When the support pin 95 enters the engaging recess 75, the lid control lever 73 is provided with the compression coil spring 77 so that the lower surface 75 a of the engaging recess 75 is flush with the upper end surface of the movement guide 49. It is rotated in the arrow W direction in FIG. 35 against the force. The rotation range of the lid control lever 73 at this time is
This is the range indicated by the arrow θ ₂ in FIG.

The rotation range θ ₁ when the support pin 95 rides on the inclined surface portion 78 and is rotated is the rotation range in which the support pin 95 is rotated when the support pin 95 enters the engaging recess 75. It is made larger than θ ₂ .

As shown in FIGS. 32 and 35, an engaging piece 76 with which the connecting member 160 engages is provided at the front end portion of the lid control lever 73 where the engaging concave portion 75 is formed. There is. The engagement piece 76 is engaged with the operation pin 162 provided on the rear side of the connecting member 160. The connecting member member 160 has a central portion in the outer casing, which has a support shaft 161.
It is supported via the support shaft 161 and is rotatable about the support shaft 161. Then, the connecting member 160 is rotated around the support shaft 161 in accordance with the rotation angle of the lid control lever 73 in conjunction with the rotation of the lid control lever 73.

The connecting member 160, as shown in FIG.
A lock piece 163 that abuts and engages with an operation protrusion 159 projecting from one side of the lower end side of the rotary lid 157 on the front side portion and restricts rotation of the rotary lid 157 in the direction of opening the insertion / removal opening. When,
An operation piece 164 for pressing the operation protrusion 159 to rotate the rotation lid 157 is provided.

When the cartridge holder 4 is moved to the first position close to the insertion / removal side where the disc cartridge 220 or 221 can be inserted / removed, the support pin 95 is engaged with the engaging recess 75. In this state, the lower surface 75a of the engaging recess 75 is pressed. At this time,
The lid control lever 73 is in a state of being rotated by an angle θ ₂ from the initial position, and the operation projection 159 is located at an intermediate position between the lock piece 163 and the operation piece 164 as shown in FIG. 33. Therefore, at this time, the rotatable lid 157 is rotatable in the direction of opening the insertion / removal opening in the direction of arrow S in FIG. 33 by passing the operation protrusion 159 through the gap between the lock piece 163 and the operation piece 164. It is in.

When the rotary lid 157 is in a rotatable state and the disc cartridge 220 or 221 is inserted into the insertion / removal opening, the rotary lid 157 is pressed by the disc cartridge 220 or 221 to be inserted and supported. Axis 15
8 is rotated in the direction of arrow S in FIG. 33 for opening the insertion / removal opening.

The cartridge holder 4 is attached to the mounting portion 3
When the lid control lever 73 is moved to the second position facing 00, the pressing by the support 95 is released, and the lid control lever 73 receives the biasing force of the compression coil spring 77 and is rotated to the initial position. At this time, the connecting member 160 is indicated by an arrow U in FIG.
When the lock piece 163 is rotated in the direction, the lock piece 163 is brought into contact with the operation protrusion 159, and the rotation is restricted in the direction in which the insertion / removal opening of the rotation lid 157 is opened. In this way, by restricting the rotation of the rotation lid 157, the disc cartridge 22 to the insertion / removal port is inserted.
The insertion operation of 0 or 221 is restricted, and the double insertion of the disk cartridge 220 or 221 is prohibited.

Further, when the cartridge holder 4 is in the state of moving between the first position close to the insertion / removal side and the second position facing the mounting portion 300, the support pin 95 causes the inclined surface portion 78. The lid control lever 73 is resisted against the biasing force of the compression coil spring 77 in the state where
5 in an arrow W direction, placed in a state of being rotated in a range shown in Figure 35 in an arrow theta _1. Then, the connecting member 160 is rotated in the arrow T direction in FIG. 33, which pushes up the operation protrusion 159 by the operation piece 164. At this time, the rotating lid 157 is pressed by the operation piece 158, is rotated in the direction of arrow S in FIG. 33, and is placed at the position where the insertion / removal opening is opened. Therefore,
The rotation lid 157 is prevented from coming into contact with the disc cartridge 220 or 221 passing through the insertion / removal opening.

[3] Disk Cartridge Loading Operation The disk cartridge 220 or 221 was mounted in the mounting portion 300, and was mounted in this mounting portion 300 in the disk recording / reproducing apparatus of the present embodiment having the above-described structure. The operation of ejecting the disk cartridge 220 or 221 will be described.

(3-1) Insertion Operation of Disc Cartridge into Cartridge Holder The insertion operation of the recording type disc cartridge 220 or the reproduction only type disc cartridge 221 into the cartridge holder 4 is shown in FIGS. 12 and 13. As described above, the cartridge holder 4 is moved to the first position close to the insertion / removal opening provided in the outer casing.

When the cartridge holder 4 is at the first position, the lifting / lowering operation plate 5, as shown in FIG.
55 is fixed to the support base 1 in a state of being moved to a position where it is engaged with an engagement groove 8 provided in the support base 1. The raising / lowering operation plate 5 is fixed to the support base 1 to form a recording / reproducing unit. It is fixed to the stand 1. By fixing the recording / reproducing unit mounting base 2 to the support base 1, the cartridge holder 4 is attached to the disc cartridge 2
It is positioned so that the opening on the front side where 20 or 221 is inserted / removed is accurately opposed to the insertion / removal opening of the outer casing.

When the cartridge holder 4 is at the first position, the support pin 95 provided on the cartridge holder 4 engages with the engaging recess 75 of the lid control lever 73, and the lid control lever 73 is urged by the compression coil spring 77. Put it in a state of being rotated against. As the lid control lever 73 is rotated by the support pin 95, as shown in FIG.
The lock protrusion 16 provided on the lock member 16 provided on the connecting member 160 is rotated by the lid control lever 73.
3 and the operation piece 164 are placed in contact with each other, and the rotation lid 157 is made rotatable in the direction of opening the insertion / removal opening.

As described above, the cartridge holder 4 is placed in the first position.
When the disc cartridge 220 or 221 is inserted through the insertion / removal port in the state of being moved to the position of, the rotating lid 157 of the disc cartridge 220 or 221 to be inserted is moved around the support shaft 158. It is inserted into the cartridge holder 4 while rotating inward of the housing.

When the disc cartridge 220 or 221 is properly inserted into the cartridge holder 4, the shutter opening operation piece 156 provided in the cartridge holder 4 relatively moves the shutter member 206 or 217,
The openings 222 and 223 provided in the disk cartridge 220 or 221 are opened.

(3-2) Loading Operation Then, the disc cartridge 220 or 221 is inserted by fingers in the direction of arrow J in FIG. 14 until the end face on the insertion direction side comes into contact with the positioning pieces 139, 107. After the inserted disc cartridge 220 or 221 is brought into contact with the positioning pieces 139, 107, when the disc cartridge 220 or 221 is further pushed inward to the outer casing, the cartridge holder 4 is moved to the disc cartridge 2
14 is moved together with 20 or 221 in the direction of arrow J in FIG. 14 to release the pressing of the third position detection switch 64 pressed by the pressing operation piece 84a provided on one side of the rear end side of the cartridge holder 4. .

This disk cartridge 220 or 22
The movement of the cartridge holder 4 integrated with the cam groove 1 is such that the moving operation pin 48 provided on the rotating body 45 engaged with the cam groove 112 faces the linear cam portion 112a.
It is performed by relatively moving to the side of the notch 113 provided in 12. That is, the disk cartridge 22
The movement of the cartridge holder 4 integrated with 0 or 221 is performed within a range in which the movement operation pin 48 moves from the linear cam portion 112a to the notch portion 113 side.

When the third position detecting switch 64 is released, it is detected that the disc cartridge 220 or 221 is inserted and held in the cartridge holder 4, and this detection signal is input to the control circuit. . Then, when the detection signal is input, the control circuit starts the normal rotation drive of the drive motor 34. When the drive motor 34 starts to drive in the normal direction, the rotating body 45 is rotated in the direction of arrow K _{1 in} FIG. It rotates along the portion 112a in the direction of the arrow R _{1 in} FIG. The moving operation pin 48 rotates in the direction of the arrow R _{1 in} FIG. 14 along the linear cam portion 112a, so that the cartridge holder 4 holds the disc cartridge 220 or 221 while the base plate 15 is held.
14 is moved in parallel to the mounting portion 300 side in the arrow Y direction in FIG.

The moving operation pin 48 for moving the cartridge holder 4 has a rotary body 45 from the initial position as shown in FIG.
When the cartridge holder 4 is rotated in the direction indicated by the arrow K _{1 in} FIGS. 15 and 16 by about 90 degrees, the cartridge holder 4 is mounted by rotating in the direction indicated by the arrow R _{1 in} FIGS. 14 and 15. It is moved in the direction of the arrow Y in FIGS.

When the cartridge holder 4 is moved from the first position toward the second position facing the mounting portion 300, the drive pin 10 provided on the eject lever 98 is moved.
0 passes through the first path with respect to the guide member 84 and moves without being operated by the guide member 84. That is, when the drive pin 100 of the eject lever 98 passes through the first path with respect to the guide member 84, the guide member 84 presses one side portion of the ridge 88 by the drive pin 100 and attaches the tension spring 87. It is rotated against the power. Then, when the cartridge holder 4 reaches the second position facing the mounting portion 300, the guide member 84 separates the drive pin 100 of the eject lever 98 from the protruding portion 88, so that the biasing force of the tension spring 87 is applied. It is received and returned to the initial position.

When the cartridge holder 4 is in the state of moving between the first position and the second position, the lid control lever 73 resists the urging force of the compression coil spring 77 by the support pin 95. In the direction of the arrow W in FIG. 35, the connecting member 160 is rotated to move the connecting member 160.
The rotating lid 157 is rotated to the side where the insertion / removal opening is opened by the operation piece 158 provided on the.

(3-3) Operation for mounting the disc cartridge on the mounting portion The rotary body 45 is moved from the initial position to the position shown in FIGS. 14, 15 and 16.
After being rotated about 90 ° in the direction of the middle arrow K ₁ and then further rotated in the same direction, the movement operation pin 4
8 rotates in the opposite direction along the linear cam portion 112a in the direction of the arrow R _{2 in} FIGS. 17 and 18 to move the cartridge holder 4 toward the mounting portion 300.
It is moved in the direction of the middle arrow Y, and is moved to a position facing above the mounting portion 300, as shown in FIG. And
When the cartridge holder 4 is moved to a position facing above the mounting portion 300, the movement operation pin 48 moves the arc-shaped cam portion 112b continuous with the linear cam portion 112a of the cam groove 112 as shown in FIG. To reach the position. At this time, the rotating body 45 is in a position rotated by approximately 180 degrees from the initial position. Then, from the state shown in FIG. 18 in which the moving operation pin 48 faces the arcuate cam portion 112b, the rotating body 45 is moved.
18 further rotates in the direction of the arrow K _{1 in} FIG. 18, the moving operation pin 48 moves along the arc-shaped cam portion 112b that matches the moving locus of the moving operation pin 48.
The cartridge holder 4 is held at the second position facing the mounting portion 300. Here, the arc-shaped cam portion 1
Since 12b is formed in a semi-circular shape, the cartridge holder 4 continues to be held at the second position during the rotating operation of the rotating body 45 over a further 180 degree range.

In addition, the cartridge holder 4 is attached to the mounting portion 30.
When the support pin 95 is moved in the direction of the arrow Y in FIG.
Engage in 7. The rotating body 45 is indicated by an arrow K in FIG.
_When the cartridge holder 4 is rotated further in _one direction,
As shown in FIG. 9, when the rotating body 45 moves to a position facing above the mounting portion 300 and further rotates in the direction of the arrow K _{1 in} FIG. 18, the support pin 95 causes the movement guide portion 49 provided on the support frame 16. To a position facing the vertical guide groove 50 formed at the end of the. When the rotary body 45 further rotates in the direction of arrow K _{1 in} FIG. 18 from here, the movement operation pin 48 enters the arc-shaped cam portion 112 b of the cam groove 112, and as shown in FIGS. 18 and 20, It enters between the engaging portions 146 formed between the pair of engaging pieces 147, 148 provided on the elevating operation plate 5 _. Then, the movement operation pin 48 enters the arcuate cam portion 112b, and the engaging portion 146
When the rotating body 45 further rotates in the direction of the arrow K _{1 in} FIG. 18 from the state in which the cartridge holder 4 is maintained in the position facing the mounting portion 300, the lifting operation plate 5 is moved to the position shown in FIG. It is moved in the direction of arrow N. That is, in the lifting operation plate 5, one of the engagement pieces 147 is pressed by the rotating movement operation pin 48, so that the arrow N in FIG.
Is moved in the direction. When the raising / lowering operation plate 5 is moved in the arrow N direction in FIG. 20, the support lever 65 supporting the support pin 95 receives the biasing force of the torsion coil spring 66 and rotates in the arrow A direction in FIG. With the movement of the elevating operation plate 5 in the direction of arrow N in FIG. 20, the support pin 95 is guided by the vertical guide groove 50 formed in the support frame 16 under the urging force of the torsion coil spring 66 that urges rotation. It descends toward the base plate 15 side along the inclined cam portion 152 formed on the lifting operation plate 5.

With the movement of the raising / lowering operation plate 5 in the direction of the arrow N in FIG.
As it is guided to 0, the disc cartridge 220 or 221 held by the cartridge holder 4 has positioning holes 209 and 210, respectively.
18, the mounting position is determined, and the mounting portion 300 is mounted.

When the raising / lowering operation plate 5 is moved to the position where the cartridge holder 4 is lowered to the position shown in FIG. 23 where the disc cartridge 220 or 221 is mounted on the mounting portion 300, the support base of the engagement piece 155 is moved. The engagement with the engagement groove 8 provided on the table 1 is released. And the lifting operation plate 5
The recording / reproducing unit mounting base 2 including the recording / reproducing unit to which is mounted is supported by the support base 1 only by the damper 10. That is, the recording / playback unit mounting base 2
Is supported in a floating state via the damper 10. As described above, since the recording / reproducing unit mounting base 2 is supported in the floating state, the shock applied to the outer casing or the like is absorbed by the damper 10, and the vibration or the like is transmitted to the recording / reproducing unit mounting base 2. Is prevented.

When the raising / lowering operation plate 5 is moved to the position where the cartridge holder 4 is lowered to the position close to the mounting portion 300, the pressing operation of the lid control lever 73 by the support pin 95 is released and the lid control lever 73 is moved. Compression coil spring 7
It receives the biasing force of 7 and is rotated to the initial position. Then, the connecting member 160 is rotated by the lid control lever 73,
The lock piece 163 is brought into contact with the operation protrusion 159, and the rotary lid 1
57 holds the insertion / removal opening in a closed state.

As described above, the disc cartridge 220
Or 221 is mounted on the mounting portion, the magneto-optical disk 201 or the optical disk 231 housed in these disk cartridges 220 or 221 is inserted into the disk table 19
It is made to be able to rotate integrally with and is attached. Here, the magneto-optical disk 20 is driven by driving the spindle motor 20 and the optical pickup device 21.
1 or the information signal recorded on the optical disc 231 is reproduced.

(3-4) Selection of Recording Mode As shown in FIGS. 24 and 25, the raising / lowering operation plate 5 has the rotating body 45 shown in FIG. 24 after the recording type disk cartridge 220 is mounted in the mounting portion 300. When rotated in the direction of the middle arrow K ₁ and moved forward in the direction of N in FIG. 24, the magnetic head element 29 of the magnetic head device 26 is moved to the magneto-optical disk 201 mounted on the disk table 19.
Move it to the position where it slides on.

In this state, the optical pickup device 2
1 and the magnetic head device 29, the magneto-optical disk 20.
The information signal for 1 can be recorded. Then, the optical pickup device 21, the magnetic head device 29, and the spindle motor 20 are driven to record an information signal.

The position of the raising / lowering operation plate 5 is detected by the first and second position detection switches 62 and 63, and is discriminated by the control circuit based on the detection signal. This control circuit determines whether the disc cartridge mounted in the mounting portion 300 is the recording type disc cartridge 220,
Whether the disc cartridge 221 is a reproduction-only disc cartridge 221, is detected through a detection switch (not shown). And
In this control circuit, the disc cartridge mounted in the mounting portion 300 is a read-only disc cartridge 221.
In this case, the raising / lowering operation plate 5 is held at the position where the cartridge holder 4 is lowered to the mounting portion 300 side. That is, further drive of the drive motor 34 for rotating the rotating body 45 is restricted.

(3-5) Disc cartridge eject operation The disc cartridge 220 mounted in the mounting portion 300
Alternatively, in order to perform an eject operation for taking out 221 from the cartridge holder 4, the drive motor 34 is driven in reverse. When the drive motor 34 is driven in the reverse direction, the rotating body 45 is rotated in the arrow K ₂ direction in FIG. When the rotating body 45 is rotationally operated in the direction of arrow K _{2 in} FIG. 26, the raising / lowering operation plate 5 is moved by the moving operation pin 48 in the direction of the arrow M in FIGS. It Due to the movement of the elevating operation plate 5, the cartridge holder 4 is guided by the vertical guide groove 50 to the support pin 95 and moved to the upper side separated from the mounting portion 300, and the disc cartridge 220 or 221 is detached from the mounting portion 300.

At this time, the moving operation pin 48 is connected to the engaging portion 1
Although the lifting / lowering operation plate 5 is moved by engaging with 46, it moves within the arcuate cam portion 112b of the cam groove 112 and restricts the horizontal movement of the cartridge holder 4.

When the movement operation pin 48 rotates 180 degrees along the arcuate cam portion 112b, it is rotated from the arcuate cam portion 112b to the position facing the linear cam portion 112a, and in the process of this rotation. 20 to 24, the lifting operation plate 5 is moved in the direction of the arrow M in FIG. 20 to FIG. 24, and the engagement piece 155 is engaged with the engagement groove 8 provided in the support base 1. The recording / reproducing unit mounting base 2 to which the cartridge holder 4 is mounted is fixed to the support base 1. At this time, the movement operation pin 48 is disengaged from the engaging portion 146 and enters the linear cam portion 112 a of the cam groove 112. When the rotating body 45 is further rotated in the direction of the arrow K _{2 in} FIG. 26 from this state, the moving operation pin 48 moves the linear cam portion 11
Along 2a moves in the arrow R ₃ direction in FIG. 26, is moved to the first position direction toward the cartridge holder 4 in FIGS. 26 through 28 the arrow O direction of insertion slot.

At this time, the drive pin 100 of the eject lever 98 passes through the second path with respect to the guide member 84, is moved by the guide member 84, and is held by the cartridge holder 4 via the eject lever 98. The disk cartridge 220 or 221 that is present is pressed toward the insertion / removal side in the direction of arrow P in FIGS. That is, when the drive pin 100 passes through the second path with respect to the guide member 84, the drive pin 100 is moved with respect to the cartridge holder 4 along the other side of the protrusion 88 of the guide member 84 at the initial position.

Further, the lid control lever 73 is inserted by rotating the rotary lid 157 through the connecting member 160 while the cartridge holder 4 is moving from the second position to the first position. The opening is rotated to the opened position so that it does not come into contact with the disk cartridge 220 or 221 discharged to the outside of the outer casing through the insertion / removal opening.

Incidentally, after the transfer operation pin 48 comes out of the arcuate cam portion 112b, the rotating body 45 is moved to the arrow K in FIG.
_The moving operation pin 48 moves in the direction of the arrow R _{3 in} FIG. 26 along the linear cam portion 112a until it is rotated by approximately 90 degrees in the _two directions. While it is further rotated by approximately 90 degrees in the K ₂ direction, the cartridge holder 4 is moved in the reverse direction R _{4 in} FIG. 28 along the linear cam portion 112a to move the cartridge holder 4 in the direction O in FIG. . That is, the rotating body 45 as a whole is 180
The cartridge holder 4 is rotated to the second
To the first position.

When the cartridge holder 4 is moved to the first position shown in FIG. 28, the eject lever 98 is rotated by the guide member 84 in the direction in which the disc cartridge 220 or 221 is projected from the cartridge holder 4. . By the rotation of the eject lever 98, the disc cartridge 220 or 221 is
A part of the cartridge is projected from the insertion / removal opening, and is grasped by fingers so that it can be pulled out from the cartridge holder 4. The eject operation is completed by pulling out the disk cartridge 220 or 221 from the insertion / removal opening.

As described above, the disc cartridge 2
By moving the cartridge holder 4 to a position where the disc holder 20 or 221 can be taken out, the disc recording / reproducing apparatus is brought into an initial state in which the disc cartridge 220 or 221 can be inserted into the cartridge holder 4 again.

[0143]

In the loading device according to the present invention, the eject lever for ejecting the recording medium from the holding means is
When the holding means holds the recording medium and moves and moves from the first position to the second position, the drive pin passes through the first path with respect to the guide member and is not moved and operated by the guide member. When the holding means moves with the holding means and the holding means holds the recording medium and moves from the second position toward the first position, the drive pin passes through the second path with respect to the guide member and is moved by the guide member. Since the contact portion is configured to be moved in the direction in which the recording medium is projected from the holding means, the recording medium can be reliably projected from the holding means to a certain position during the ejecting operation of the recording medium.

Further, the loading device according to the present invention is
Since the recording medium can be projected to the outside of the main body of the apparatus without protruding the holding means for holding the recording medium from the main body of the apparatus, it is possible to prevent the apparatus itself from becoming large.
It is possible to realize miniaturization of the recording and / or reproducing apparatus using this loading device.

[Brief description of drawings]

FIG. 1 is a perspective view showing a recording-type disk cartridge that houses a magneto-optical disk used as a recording medium of a recording and / or reproducing apparatus according to the present invention.

FIG. 2 is a perspective view of the disc cartridge as seen from a mounting surface side to a disc table.

FIG. 3 is a perspective view showing a read-only type disc cartridge which accommodates an optical disc used as a recording medium of the recording and / or reproducing apparatus according to the present invention.

FIG. 4 is a perspective view of the disc cartridge as seen from a mounting surface side to a disc table.

FIG. 5 is an exploded perspective view of a recording / reproducing device to which the loading device according to the present invention is applied.

FIG. 6 is a perspective view showing a support base on which a recording / playback unit mounting base that constitutes a recording / playback unit is supported.

FIG. 7 is a perspective view showing a recording / reproducing unit mounting base on which a recording / reproducing unit is configured.

FIG. 8 is a perspective view showing a top plate mounted on a support frame.

FIG. 9 is a perspective view showing a cartridge holder that holds a disc cartridge.

FIG. 10 is an exploded perspective view showing a positional relationship between a cartridge holder, a top plate, and a lifting operation plate.

FIG. 11 is a perspective view showing an elevating operation plate for restricting movement of the cartridge holder.

FIG. 12 is a plan view showing a state in which the cartridge holder is moved to the first position where the disc cartridge can be inserted and removed.

FIG. 13 is a side view showing a state where the cartridge holder has been moved to the first position.

FIG. 14 is a plan view showing a state in which the disc cartridge is inserted in the cartridge holder.

FIG. 15 is a plan view showing a state where the cartridge holder starts moving toward the second position inside the outer casing.

FIG. 16 is a plan view showing a state immediately after the cartridge holder starts moving toward the second position inside the outer casing.

FIG. 17 is a plan view showing a state in which the cartridge holder is moving toward the second position inside the outer casing.

FIG. 18 is a second view in which the cartridge holder faces the mounting portion.
It is a top view showing the state where it was moved to the position.

FIG. 19 is a second view in which the cartridge holder faces the mounting portion.
It is a side view which shows the state moved to the position.

FIG. 20 is a plan view showing a state where the cartridge holder is moving toward the mounting portion side.

FIG. 21 is a side view showing a state where the cartridge holder is moving toward the mounting portion side.

FIG. 22 is a plan view showing a state in which the disc cartridge held by the cartridge holder is mounted in the mounting portion.

FIG. 23 is a side view showing a state in which the disc cartridge is mounted in the mounting portion.

FIG. 24 is a plan view showing a recording mode state in which an information signal can be recorded by sliding a magnetic head device on a magneto-optical disk in a disk cartridge mounted in a mounting portion.

FIG. 25 is a side view showing a recording mode state.

FIG. 26 is a plan view showing a start state of an eject operation for moving the cartridge holder from the second position to the first position.

FIG. 27 is a plan view showing a state in the middle of an eject operation in which the cartridge holder moves from the second position toward the first position.

FIG. 28 is a plan view showing a state in which the cartridge holder has been moved to the first position and the eject operation that enables the disc cartridge to be taken out has been completed.

FIG. 29 is a side view showing a main part of a recording / reproducing apparatus to which the loading device according to the present invention is applied.

FIG. 30 is a front view showing a main part of a recording / reproducing apparatus to which a loading device according to the present invention is applied.

FIG. 31 is a rear view showing a main portion of a recording / reproducing device to which the loading device according to the present invention is applied, with a part thereof broken away.

FIG. 32 is a perspective view showing a rotating lid for opening and closing an insertion / removal opening provided in the outer casing and an opening / closing mechanism of the rotating lid.

FIG. 33 is a side view showing a state in which the rotating lid allows the insertion / removal opening to be opened.

FIG. 34 is a side view showing a state in which the rotation lid closes the insertion / removal opening.

FIG. 35 is a side view showing a lid control lever which controls opening / closing of the rotating lid.

[Explanation of symbols]

 2 recording / reproducing mounting base 3 top plate 4 cartridge holder 15 base plate 16 support frame 84 guide member 87 tension spring 88 ridge 98 eject lever 100 drive pin 101 contact pin 220 recording / reproducing disc cartridge 221 reproduction-only type Disc cartridge 300 mounting part

Claims (2)

[Claims] 1. A mounting portion configured on a base, on which a recording medium is mounted, a first position for holding the inserted recording medium and enabling the insertion of the inserted recording medium, and the mounting portion facing the mounting portion. The second position while moving to the second position
Holding means that is movably arranged in a direction in which the mounting portion moves toward and away from the mounting portion, and a recording medium that is movably attached to the holding means and is held by the drive pin and the holding means. An eject lever having an abutting portion that abuts against the guide member, and a guide member that is disposed on the base side and that moves and operates the eject lever with respect to the holding means via the drive pin according to the movement of the holding means. In the eject lever, when the holding means holds the recording medium and moves from the first position toward the second position, the drive pin moves to the first position with respect to the guide member. The recording medium passes through the path and moves together with the holding means without being moved by the guide member, and the holding means holds the recording medium and moves from the second position to the first position. When it is moved, the drive pin passes through the second path with respect to the guide member, is moved by the guide member, and is moved by the contact portion in the direction in which the recording medium is projected from the holding means. A recording medium loading device characterized by the above. 2. The guide member has a ridge portion, is rotatably disposed on the base side, and is urged by an urging means to be rotated in a direction of returning to an initial position. When the drive pin passes through the first path with respect to the guide member, the member is rotated against the biasing force of the biasing means by pressing one side of the protruding portion by the drive pin. When the holding means is moved to the second position, the drive pin is separated from the ridge portion to receive the urging force of the urging means and pivotally return to the initial position. The lever moves along the other side of the ridge portion of the guide member when the drive pin passes through the second path with respect to the guide member, so that the lever is connected to the holding means via the contact portion. Hold the stored recording medium above. Loading device for a recording medium according to claim 1, characterized in that it is moved in a direction of discharging from the unit.