JP2003085862A - Loading mechanism and recording/reproducing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the handleability by enabling the mounting/dismounting of a recording medium from a direction oblique to the front surface of a casing. SOLUTION: A recording medium loading part 172 on which the recording medium 12 is to be loaded and moving parts 141 and 150 moved when the recording medium is loaded on the recording medium loading part are integrally and movably supported by the casing 110. A movable control part 113 provided in the casing moves the recording medium loading part and the moving part integrally with the movement of the moving part, thereby forms an opening for insertion and removal to insert and remove the recording medium.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel loading mechanism and recording / reproducing device. More specifically, the present invention relates to a technique that allows a recording medium to be inserted and removed from a new direction.

[0002]

2. Description of the Related Art A recording / reproducing apparatus, for example, a recording / reproducing apparatus in which a disk-shaped recording medium such as an optical disk, a magneto-optical disk or a magnetic disk is used as it is or is housed in a cartridge case to be used as a disk cartridge. In a conventional loading mechanism for mounting (including a cartridge type) in a mounting portion for recording and / or reproducing, a loading operation is performed by removing a recording medium from an insertion / removal opening formed on a front surface of an outer casing. By inserting from the direction perpendicular to the front of the cabinet,
In the case of a so-called exposed recording medium that is not stored in a cartridge case, the recording medium is placed on a tray that protrudes in a direction perpendicular to the front surface of the outer casing from the insertion / removal opening formed on the front face of the outer casing. Most of the time I went there.

That is, in most of the conventional recording / reproducing apparatuses, the recording medium is loaded from the direction perpendicular to the front surface of the outer casing.

[0004]

However, there is a problem in that there is a limitation in usability when the recording medium is loaded only from the direction perpendicular to the front surface of the outer casing as in the conventional case.

For example, in the case of a type of loading using a tray that moves in and out of an outer casing, the user can visually check the recording medium mounting surface of the tray in order to change the posture significantly. There is no problem if the recording / reproducing device can be arranged at a position where it is possible, but there may be no space for arranging the recording / reproducing device at such a convenient position. In particular, in the recent environment surrounding personal computers, there are many types of peripheral devices, and the recording / reproducing apparatus cannot always be installed and used in the convenient position as described above. In such cases,
When inserting or removing the recording medium, a situation in which the posture must be changed significantly, such as when the user stands up or bends backwards, may occur, and the usability may be greatly impaired.

Therefore, an object of the present invention is to improve the usability by enabling the recording medium to be inserted into and removed from the front surface of the outer casing in an oblique direction.

[0007]

In order to solve the above-mentioned problems, a loading mechanism of the present invention has a recording medium mounting portion on which a recording medium is mounted, and when the recording medium is mounted on the recording medium mounting portion. And a moving unit that is moved to the outer casing are integrally movably supported in the outer casing, and the recording medium loading unit and the moving unit are integrally formed by a movement control unit provided in the outer casing according to the movement of the moving unit. And an insertion / removal opening for inserting / removing the recording medium is formed.

Therefore, in the loading mechanism of the present invention, when the recording medium is loaded, the recording medium mounting portion and the moving portion integrally move with respect to the outer casing to insert and remove the recording medium. Thus, the recording medium can be supplied at an arbitrary angle to the front surface of the outer casing.

In order to solve the above-mentioned problems, the recording / reproducing apparatus of the present invention is a recording / reproducing apparatus for recording and / or reproducing a signal on a recording medium, and a recording medium mounting section to which the recording medium is mounted. And a moving unit that is moved when the recording medium is mounted in the recording medium mounting unit are movably supported integrally with the outer casing, and are provided in the outer casing as the moving unit moves. The recording medium mounting unit and the moving unit are integrally moved by the movement control unit, and a loading mechanism is formed in which an insertion / removal opening for inserting / removing the recording medium is formed.

Therefore, in the recording / reproducing apparatus of the present invention,
When the recording medium is loaded, the recording medium mounting portion and the moving portion integrally move with respect to the outer casing to form an insertion / removal opening for inserting / removing the recording medium. It is possible to supply the recording medium at the above angle, which alleviates the restrictions on the installation position of the recording / reproducing apparatus.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a loading device and a recording / reproducing device of the present invention will be described below with reference to the accompanying drawings.

The embodiment shown in FIG.
An MD cartridge, which is called a D (mini disk) and has a disk shape with a diameter of about 62 mm and which is disk-shaped or magneto-optical disk, is rotatably housed in a flat cartridge having a square planar shape. The present invention is applied to a recording / reproducing apparatus that performs recording (for a magneto-optical disk) and reproduction (for an optical disk and a magneto-optical disk) on an MD, and a loading mechanism in the recording / reproducing apparatus.

Before describing the recording / reproducing apparatus 100, first, the MD cartridge 10 will be briefly described with reference to FIGS. 1 and 2.

The MD cartridge 10 has a flat cartridge case 11 having a rectangular planar shape. The planar shape of the cartridge case 11 is slightly longer than the square shape. That is, the front-back direction (arrow AB in FIG. 1)
, The length of A is the front and B is the rear) is slightly shorter than the length in the left-right direction (indicated by C-D in FIG. 1, C is left and D is right). The recording medium disk 12 such as the above-mentioned optical disk or magneto-optical disk is rotatably accommodated in such a cartridge case 11.

A circular insertion hole 13 is formed in the center of the lower surface of the cartridge case 11, and a center plate 12a made of magnetic metal is attached to the center of the recording medium disk 12 through the insertion hole 13. It faces downwards. Then, when the MD cartridge 10 is mounted on the recording / reproducing apparatus 100, the turntable provided on the recording / reproducing apparatus 100 is inserted into the cartridge case 11 through the insertion hole 13 and the center plate 12a.
Is adsorbed on the turntable.

An access window 14 having a rectangular shape elongated in the left-right direction is formed on the right side of the insertion hole 13 on the lower surface of the cartridge case 11. When the MD cartridge 10 is attached to the recording / reproducing apparatus 100,
An optical pickup provided in the recording / reproducing apparatus 100 irradiates the signal recording surface of the recording medium disk 12 with laser light through the access window 14.

When the MD cartridge 10 accommodates a recordable recording medium disk 12, a magnetic head having substantially the same shape as the access window 14 is provided at a position corresponding to the access window 14 on the upper surface of the cartridge case 11. The insertion window 15 is formed. The magnetic head provided in the recording / reproducing apparatus 100 enters the cartridge case 11 through the magnetic head insertion window 15 at the time of recording, and enters the recording medium disk 1
The optical pickup 2 is brought into contact with or close to a position corresponding to the back side of the portion where the laser light irradiation is performed.

The MD cartridge 10 has the above-mentioned access window 14 (in the case of a recordable one, a magnetic head insertion window 15).
A shutter 16 for opening and closing the () is also provided. The shutter 16 is formed by bending a thin metal plate, and two shutter pieces 16a and 16b each having a plate shape slightly larger than the access window 14 and the magnetic head insertion window 15 are arranged so as to face each other vertically. Piece 16
The right sides of a and 16b are connected by an intermediate piece 16c. An engaging hole 16d is formed in the intermediate piece 16c, and a locked piece (not shown) is also provided.

The above-mentioned shutter 16 is slidably supported in the front-rear direction on the right side portion of the cartridge case 11.
That is, as shown in FIG. 1, two shutter pieces 16
a and 16b are the closed positions where the access window 14 and the magnetic head insertion window 15 are closed, and as shown in FIG. 2, the two shutter pieces 16a and 16b are the access window 1 respectively.
The shutter 16 is supported by the cartridge case 11 so that the shutter 16 can slide between the open position and the magnetic head insertion window 15. And the cartridge case 1
A lock member (not shown) is provided in the shutter 1, and a locked piece (not shown) provided on the shutter 16 is locked. And MD cartridge 1
When 0 is attached to the recording / reproducing apparatus 100, the shutter opening member provided in the recording / reproducing apparatus 100 is inserted from the front end into the groove 17 formed so as to reach the front end at the right end portion of the cartridge case 11. The intermediate portion 16c of the shutter 16 is unlocked by the lock member.
Press the front end of the toward the rear relatively, by this,
The shutter 16 moves to the open position. In addition, the shutter closing member provided in the recording / reproducing apparatus 100 during this time is the engaging hole 1 provided in the intermediate portion 16c of the shutter 16.
6d is engaged. Then, when the MD cartridge 10 is taken out from the recording / reproducing apparatus 100, the engagement hole 16d is pulled forward by the shutter closing member that moves forward relative to the MD cartridge 10.
As a result, the shutter 16 is moved toward the closed position, the locked piece of the shutter 16 is locked by the lock member in the cartridge case 11 at the closed position, and the shutter closed member is disengaged from the engagement hole 16d.

Further, a circular positioning hole 18 is formed at a position near the right end of the rear end of the lower surface of the cartridge case 11, and a long positioning hole 19 is formed at a position near the right end of the front end of the lower surface, which is long in the front-rear direction. Has been done.

Next, the external operation of the recording / reproducing apparatus 100 will be described with reference to FIGS.

The recording / reproducing apparatus 100 has an outer casing 11 forming an outer shell.
0, and the mechanical deck 120 is supported inside the outer casing 110. The mechanical deck 120 includes a base chassis 130, which forms an outer shell, and a mechanical chassis having a disk rotation mechanism, an optical pickup, a magnetic head device, etc. mounted thereon, and an MD tray for loading and unloading the MD cartridge 10. Is provided and configured. Details of the mechanical deck section 120 will be described later.

A slightly vertically long rectangular opening 111 is formed on the front surface of the outer casing 110, and the mechanical deck 120 covers the outer casing 11 from the inside.
It is supported by 0. In the state shown in FIG. 3, the recording / reproducing apparatus 100 is in a stopped state, that is, the recording medium disc 12
Shows a state in which recording or reproduction is performed, and the front surface of the mechanical deck portion 120 is covered by the cover body 140, so this state is referred to as a “closed state”.

FIG. 4 shows an eject state in which the MD cartridge 10 is delivered to the recording / reproducing apparatus 100. In this eject state, the outer casing 110
MD tray 150 protruding downward from the opening 111 of the
Place the MD cartridge 10 on the
MD cartridge 10 placed on 50 and ejected
To take out.

Next, the operation that appears in the outline from the closed state shown in FIG. 3 to the eject state shown in FIG. 4 will be described.

The mechanical deck portion 120 is supported rotatably back and forth with respect to the outer casing 110, and the cover body 1 is also provided.
Reference numeral 40 is a colorless transparent or colored transparent (including smoked) material, and is formed in a rectangular plate shape having a size that fits exactly into the opening 111 of the outer casing 110, and is vertically movable with respect to the base chassis 130. It is supported.

Then, for example, when the user presses the eject button or the like to issue an instruction to put it in the eject state, the lower end portion of the mechanical deck portion 120 is rotated so as to project forward from the opening 111, and the cover body 140 is rotated. Moves upwards. At this time, first, the cover body 140
After moving slightly upward, the mechanical deck 120 starts to rotate. As a result, a space is formed between the lower end of the cover body 140 and the lower edge of the opening 111, and the mechanical deck unit 1
The lower end of 20 can rotate in the direction in which it projects forward.

The lower end of the mechanical deck 120 is shown in FIG.
When the MD tray 150 is projected forward to the position shown in FIG. 7, it becomes possible to project the MD tray 150 to the outside of the outer casing 110 (in this way, a state in which the MD tray 150 can actually be projected to the outside of the outer casing 110 appears. This is referred to as “formation of insertion / removal opening” in the claims). In this state, the rotation of the mechanical deck 120 and the upward movement of the cover 140 are stopped, and the MD tray 150 is projected obliquely downward. . Then, when the MD tray 150 has projected to the position shown in FIG. 4, the projection of the MD tray 150 stops and the ejecting state is set.

Then, a new MD cartridge 10 is placed on the MD tray 150, or after the MD cartridge 10 placed on the MD tray and ejected is taken out, for example, the eject button is pressed to close the cartridge. When the command is issued, the MD tray 150 first moves upward and is retracted into the mechanical deck section 120 (see FIG. 5), and then the mechanical deck section 120 has its lower end moved into the outer casing 110. The cover body 140 moves downward while being rotated. And the mechanical deck section 1
20 is drawn into the outer casing 110, and the opening 111 of the outer casing 110 is covered with the cover body 140.

As described above, this recording / reproducing apparatus 100
In this case, since the MD tray 150 is obliquely projected with respect to the front surface of the outer casing 110 to insert / remove the MD cartridge 10, the recording medium can be inserted / removed only in the direction perpendicular to the front surface of the conventional outer casing. It has an advantage that the installation position of the recording / reproducing apparatus is not restricted as compared with the one that cannot be performed. That is, it goes without saying that it can be installed at a position similar to that of the conventional recording / reproducing apparatus, and in the past, even at a high position where the recording medium mounting surface of the tray cannot be visually observed,
If the MD tray 150 is installed so as to project obliquely downward as shown in FIG. 4, the surface of the MD tray 150 on which the MD cartridge 10 is placed can be visually observed.

Further, FIG. 4 shows a state in which the front surface of the outer casing 110 is installed in a direction along the vertical direction, but if the front surface of the outer casing 110 is installed in a direction along the horizontal direction, the MD tray 1
In this case, if the MD tray 150 is made to project obliquely upward and rearward, the surface of the MD tray 150 on which the MD cartridge 10 is mounted is visually observed from the front. You can

Further, the state shown in FIG. 4 shows one example, and the projecting angle of the MD tray 150 can be arbitrarily set by design. Therefore, the degree of freedom regarding the installation location and the installation attitude is increased, and the usability is improved.

Next, a mechanism for rotating the mechanical deck portion 120 with respect to the outer casing 110 will be described mainly with reference to FIGS. 6 and 7. The cover body 140 is supported by the cover frame 141 (see FIG. 8). The cover frame 141 has a front frame portion 141a having an inverted concave shape when viewed from the front.
And side surface portions 141b and 141b protruding rearward from both side edges of the front frame portion 141a.
Guided pin 141 outward from the portions near the upper and lower ends of 1b
c, 141c, 141d, 141d are provided in a protruding manner.
Then, these guided pins 141c, 141c, 141
As for d and 141d, the lower ones 141d and 141d are formed longer than the upper ones 141c and 141c.
Then, these guided pins 141c, 141c, 141
d and 141d are side walls 131 of the base chassis 130,
Guide slits 131a, 131a, 131b, 131 formed at both upper and lower ends of the 131 to extend in the vertical direction.
It is slidably engaged with b. In addition, the supported shafts 131c and 131 are provided at positions slightly above the center of the front end portions of the side walls 131 and 131 of the base chassis 130.
c is projected (see FIG. 6).

Guide grooves 113, 1 extending in a vertical direction in a substantially S-shaped crank shape are provided at positions corresponding to substantially lower half portions of the openings 111 on the inner side surfaces of the side walls 112, 112 of the outer casing 110.
13 is formed. The guide groove 113 has a shape in which an upper end 113a and a lower end 113b extending substantially vertically are connected by an intermediate part 113c which is inclined rearward and downward. As a result, the upper end 113a has the opening 1
11, the lower end 113b is located rearward from the opening 111 (see FIG. 7).

When the direction is shown with respect to the recording / reproducing apparatus 100, the direction in which the opening 111 of the outer casing 110 is located,
That is, the arrow D direction in the drawing is the front, the direction from the opening 111 to the inside of the outer casing 110, that is, the arrow E direction in the drawing is the rear, and the upward direction in FIG. 3, that is, the arrow F direction in the drawing is the upward direction. The ground direction in FIG. 3, that is, the arrow G direction in the drawing is the downward direction, and the right direction toward the front of the outer casing 110, that is, the arrow H direction in the drawing is the right direction, and the left direction toward the front, that is, The arrow I direction in the figure is the left. In the following description, the direction of the recording / reproducing apparatus 100 is based on this direction. Further, when the directions are shown with respect to the MD cartridge 10, the directions shown in FIGS. 1 and 2 are used.

On the inner surfaces of the side walls 112, 112 of the outer casing 110, rotation supporting parts 114, 114 are provided at positions corresponding to the upper ends of the openings 111, and the rotation supporting parts 114, 114 are provided.
Support concave portions 114a and 114a are formed on the upper surface of 14 (see FIG. 7).

Then, the supported shafts 131c and 131c projecting from the side walls 131 and 131 of the base chassis 130 of the mechanical deck 120 are the side walls 112 and 1 of the outer casing 110, respectively.
It is placed in the supporting recesses 114a, 114a of the rotation supporting portions 114, 114 formed on the inner surface of the twelve, and in that state,
Support recesses 114a, 11 of the supported shafts 131c, 131c
It is prevented from coming off from 4a. In this way, the mechanical deck portion 120 is supported by the outer casing 110 so as to be rotatable in the front-rear direction (one supported shaft 131c is shown in FIG. 7). The lower guided pins 141d and 141d provided on the cover frames 141 and 141 are guided by the guide grooves 113 and 11 provided on the inner surfaces of the side walls 112 and 112 of the outer casing 110.
3 is slidably engaged (in FIG. 7, one guided pin 1
41d only).

When the recording / reproducing apparatus 100 is in the closed state, the guided pins 141d and 141d are located in the lower end portions 113b and 131b of the guide grooves 113 and 113, and as a result, the mechanical deck portion 120 is It is located at the rear end of the rotation range, and the cover body 140 is located in substantially the same plane as the opening surface of the opening 111 of the outer casing 110. The outer shape of the mechanical deck portion 120 and the guided pin 141d in this closed state are shown by a dashed line in FIG.

As described above, when the eject command is issued, the cover 140 moves upward, but at the same time, the guided pins 141d and 141d also move upward. Then, the guided pins 141d, 141
d is the lower end portions 131b and 131b of the guide grooves 113 and 113.
The mechanical deck unit 120 does not start to rotate while moving. Therefore, during this time, the cover body 140 moves slightly upward, a space is formed between the lower end of the cover body 140 and the lower edge of the opening 111, and the mechanical deck 120 extends in the direction in which the lower end portion projects forward. It becomes possible to rotate.

While the guided pins 141d, 141d move from the lower end to the upper end of the intermediate portions 113c, 113c of the guide grooves 113, 113, the mechanical deck 120 has its lower end forward from the opening 111 of the outer casing 110. It is rotated so as to project. Then, the guided pins 141d, 141
d is the intermediate portion 113c, 113c of the guide groove 113, 113
When the upper end of the mechanical deck 120 is reached, the lower end of the mechanical deck 120 is most protruded from the opening. The outer shape of the mechanical deck section 120 and the guided pin 141d at this time are shown by a two-dot chain line in FIG.

FIG. 8 is an exploded perspective view showing an outline of the mechanical deck section 120.

The mechanical deck section 120 is the base chassis 13
A mechanical chassis 160 that is floatingly supported at 0 is provided. The mechanical chassis 160 is supported at four positions in the upper, lower, left, and right positions on the front right side of the rear wall 132 of the base chassis 130 via damper members 161, 161 made of an elastic material such as rubber. A disk rotating mechanism 170, an optical pickup 180, and a magnetic head device 190 are supported on the mechanical chassis 160.

The disk rotating mechanism 170 comprises a spindle motor 171 supported at the left end of the mechanical chassis 160 near the lower end thereof, and a turntable 172 fixed to the front end of a rotary shaft 171a of the spindle motor 171. A chucking magnet 172a is embedded in the front surface of the turntable 172 (see FIGS. 9 and 17).

An optical pickup 180 is provided on the right side of the disc rotating mechanism 170 so as to be movable in the left-right direction, that is, in the radial direction of the disc 12 chucked by the turntable 172. The guide shaft 182 supported by the mechanical chassis 160 is inserted through the upper end of the slide base 181 of the optical pickup 180, and the lower end of the slide base 181 is located at the mechanical chassis 16.
The slide base 181 is supported by the mechanical chassis 160 so as to be movable in the left-right direction (see FIG. 9). And the slide base 181
A rack (not shown) extending in the left-right direction is provided at the upper end of the thread motor, and a thread gear (not shown) with which the rack meshes is connected to the thread motor 185 via a gear reduction mechanism 184.
Is rotated by the slide base 18
0 is moved to the left and right. And
An optical pickup 180 is configured by an objective lens 186 provided on the slide base 181 so as to be positionally adjustable in two axial directions, a laser oscillator, a photodetector, etc. (not shown) (see FIG. 9).

The magnetic head device 190 is constructed so as to move in the left-right direction integrally with the optical pickup 180. As shown in FIG. 10, the magnetic head device 190 includes a connecting base 191. The connecting base 191 includes a connecting portion 191a extending in the front-rear direction and a plate-like base portion 191b protruding downward from the front end of the connecting portion 191a. The base portion 191b is integrally formed with a regulating arm 191c protruding downward from the right end portion thereof, and the lower end portion of the regulating arm 191c projects leftward to serve as a pressing piece 191d (see FIG. 11). . The rear end of the connecting portion 191a has a slide base 181 of the optical pickup 180.
It is fixed to the front of the part near the upper end of.

Further, the magnetic head device 190 has a head supporting arm 193 which supports the magnetic head 192 on the tip side.
And an arm support plate 194 that supports the lower side of the head support arm 193.

The head support arm 193 is formed by punching out a thin metal plate having elasticity such as phosphor bronze.
93a and an arm portion 193b projecting downward from the base portion 193a and a resilient portion 1 projecting substantially downward from the left end portion of the base portion 193a and shorter than the arm portion 193b.
93c is integrally formed, and the base 193a is fixed to the front surface of the base 191b of the connection base 191.
The arm portion 193b and the resilient portion 193c project obliquely downward and rearward, and the magnetic head 192 is supported by the tip of the arm portion 193b (see FIGS. 10 and 11).

The arm support plate 194 is made of synthetic resin and is elongated in the vertical direction. A supporting piece 194aa protruding rightward is formed at the lower end of the arm supporting plate 194, and the supporting piece 194a supports the rear surface of the lower end of the arm portion 193b of the head supporting arm 193. Further, a spring contact piece 194b is provided at a position slightly lower than the rotatably supported portion of the arm support plate 194 so as to project rightward,
A head support arm 193 is provided on the front surface of the spring contact piece 194b.
The tip of the elastic part 193c is elastically contacted. Therefore,
The arm support plate 194 has a resilient part 193c of the head support arm 193 elastically contacting the spring contact piece 194b and the arm part 1 of the head support arm 193 on the front surface of the support piece 194a.
The lower end of 93b is biased to move rearward by elastically contacting the tip. An L-shaped operated piece 194c is provided on the upper end of the arm support plate 194 so as to project upward (see FIGS. 10 and 11).

A head shift plate 200 is arranged on the upper end of the mechanical chassis 160 so as to be rotatable in the front-rear direction. The head shift plate 200 is made of a synthetic resin and has a plate shape that is long in the left-right direction. Supported by. Head shift plate 2
An action pin 202 is provided so as to project leftward from the left side edge of 00, and the action pin 202 is operated by a head moving slider described later. Head shift plate 200
At the lower end edge of the control piece 203, a regulation piece 203 having a substantially L-shape when viewed from the right side is provided so as to project toward the front.
The operated piece 194c of the arm support plate 194 of the magnetic head device 190 is in elastic contact with the rear surface of the front side 203a (see FIGS. 10 and 11). Then, when the optical pickup 180 moves in the left-right direction, the connection base 19
1 and the members supported by the connection base 191 also move in the left-right direction, and accordingly, the operated piece 19 of the arm support plate 194.
4c is the front side 20 of the restriction piece 203 of the head shift plate 200.
It moves in the left-right direction while being in contact with the rear surface of 3a.

The operation of the above magnetic head device 190 will be described in detail later.

Mounting tables 163, 163 located in the same plane at four regions of the mechanical chassis 160 that are substantially centered on the disk rotating mechanism 170, that is, four positions centering on the disk rotating mechanism 170 of the disk mounting portion 162. ,
... are projected forward, and conical engagement projections 163a, 163a are projected forward on the front surfaces of the two mounting table portions 163, 163 located on the right side thereof (FIG. 9, FIG. (See FIG. 17). The MD cartridge 10 drawn into the mechanical deck 120 by the above-mentioned MD tray 150 finally has the above-mentioned mounting tables 163, 163, ...
The lower surface of the cartridge case 11 is supported by the cartridge case 11, and the lower one of the engaging projections 163a and 163a projecting from the two mounting tables 163 and 163 on the right side is positioned on the lower surface of the MD cartridge 10. The reference position of the MD cartridge 10 is determined by engaging with the hole 18, and the upper engagement protrusion 163a is engaged with the positioning elongated hole 19 of the MD cartridge 10 to position the MD cartridge 10 in the left-right direction. Further, two places on the left side of the lower surface of the MD cartridge 10 and the peripheral portions of the positioning hole 18 and the positioning elongated hole 19 are placed on the mounting table parts 163, 16 respectively.
.., and the MD cartridge 10 is positioned relative to the disc mounting portion 162 in all directions of up, down, left, right, and front and back.

The MD tray 150 for mounting the MD cartridge 10 on the disc mounting portion 162 is formed by cutting and bending a metal plate. MD tray 15
As shown in FIG. 13, 0 has a main surface portion 151 whose surface direction faces the front-rear direction and has a slightly horizontally long rectangular shape, and side surface portions 152 protruding forward from the left and right side edges of the main surface portion 151.
152 is integrally provided. Side parts 152, 152
Has a length in the up-down direction longer than the up-down width of the main surface portion 151, and an upper end portion thereof projects upward from an upper end of the main surface portion 151. Engagement slide pieces 153, 153 are provided on the outer sides of the front edges of the side surface portions 152, 152 so as to project outward.
A slit 15 extending vertically is provided on the right side surface portion 152.
4 is formed, and the lower end portion 154 of the slit 154 is formed.
a is a wide portion that is widened rearward.

Further, projecting pieces 155, 155 are provided so as to project downward from positions on the left and right sides of the lower ends of the main surface portion 151, and supporting pieces 156, 156 are projecting from the lower ends of these projecting pieces 155, 155. It is projected toward the front. Also,
The protrusions 155 and 155 have cutout holes 155a,
155a is formed. A limiting piece 157 is provided so as to project forward in a portion of the upper surface of the main surface portion 151 excluding the left end portion. Then, the supporting pieces 156, 156 and the limiting piece 1
The distance between the side wall portions 57 and 57 is substantially equal to the front-rear width of the MD cartridge 10, and the distance between the side surface portions 152 and 152 is substantially equal to the left-right width of the MD cartridge 10. MD in the defined area
The cartridge 10 is designed to be placed exactly (see FIG. 18).

A left end portion of the main surface portion 151 is slightly projected upward, and a connecting piece 158 is provided so as to project rightward from the upper end thereof. Then, projecting pieces 158a, 158a are projected from both upper and lower edges of the connecting piece 158 toward the front.

A large opening 151a is formed from the position slightly left of the center of the main surface 151 to the right end, and
A long hole 15 which is long right and left at a position just above the opening 151a.
1b is formed. A notch 151c is formed in the upper edge of the elongated hole 151b near the right end, and a circular insertion hole 151 is formed at a position near the left end of the upper end of the main surface portion 151.
d is formed.

The MD cartridge 10 has the main surface portion 151 of the MD tray 150 at the above-mentioned eject position.
It is placed in a space surrounded by the side portions 152, 152, the support pieces 156, 156, and the limiting piece 157 (see FIG. 1).
8). When the MD cartridge 10 is placed on the MD tray 150 in this way, the positioning hole 18 of the MD cartridge 10 passes through the cutout hole 155a of the right protrusion 155, and the positioning slot 19 cuts out of the slot 151b.
Through 1c, they are exposed to the rear. Also MD
The center plate 12a of the recording medium disk 12 which is exposed to the outside from the insertion hole 13 in the lower surface of the cartridge 10 is exposed rearward through the left end of the opening 151a of the main surface 151.

Then, when the MD tray 150 is pulled into the mechanical deck section 120 and further moved to the rear, the main surface section 151 of the MD tray 150 is placed on the mounting table sections 163, 163 provided on the disc mounting section 162. Are placed slightly behind the front surface of the mounting table 163,
, 163, ... Protrusions 15 provided on the main surface 151
5, 155 cutout holes 155a, 155a, long hole 151b
Through the notch 151c and the insertion hole 151d of the MD
Located slightly forward of the main surface 151 of the tray 150,
The engaging protrusions 163a and 163a formed on the two mounting tables 163 and 163 on the right side are respectively the MD cartridge 1
0 of the MD cartridge 10 and the upper and lower portions on the left side of the rear surface of the MD cartridge 10 and the peripheral edges of the positioning hole 18 and the positioning elongated hole 19 are mounting table portions 163, 163 ,.・ It will be in the state of being mounted on the front surface (see FIG. 17). By this, MD cartridge 1
0 is separated from the main surface portion 151 of the MD tray 150 to the front side, and is directly supported by the disk mounting portion 162 of the mechanical chassis 160 which is floatingly supported with respect to the base chassis 130. Further, the turntable 172 of the disc rotation mechanism 170 provided on the mechanical chassis 160 is attached to the main surface portion 151 of the MD tray 150.
Of the recording medium disk 12 is inserted into the opening 151a of the MD cartridge 10 through the insertion hole 13 on the lower surface of the MD cartridge 10, the center plate 12a of the recording medium disc 12 is placed on the turntable 172, and the turntable 1
It is attracted by the chucking magnet 172 a provided on the device 72. In this way, the recording medium disc 1
2 is chucked on the turntable 172 (see FIG. 1).
7).

The MD tray 150 is a tray holder 2
10 is movably supported in the vertical direction, and the tray holder 210 is moved slightly back and forth with respect to the base chassis 130, so that the disc mounting portion 16
It is moved so that it is separated from and attached to 2.

The tray holder 210 comprises a main part 211 having a substantially concave shape when viewed from the front and an auxiliary part 212 attached to the front side of the main part 210. The auxiliary part has a substantially inverted concave shape when viewed from the front. There is. Therefore, the main portion 211 and the auxiliary portion 21
When 2 and 2 are combined, they form a slightly elongated rectangular frame (see FIG. 13).

The main portion 211 of the tray holder 210 has left and right side portions 213 and 214 extending in the vertical direction and a lower side portion 215 connecting the lower ends of these side portions 213 and 214.
And are integrally formed as a synthetic resin molded product. The inner edge of the front surface of each side portion 213, 214, that is, the right side edge portion and the right side edge portion 214 of the front surface of the left side portion 213.
Shallow step surfaces 213a and 214a extending in the vertical direction are formed on the left side edge of the front surface of the device. Auxiliary part 2
Reference numeral 12 denotes a side portion 216, 216 having a width and a length that almost completely cover the front surface of each side portion 213, 214 of the main portion 211 and an upper side portion connecting the upper ends of these side portions 216, 216. 217 and 217 are integrally formed as a synthetic resin molded product. Then, the auxiliary portion 212 is joined to the front surface side of the main portion 211 by means such as screwing. by this,
Inner edges of the side portions 216 and 216 of the auxiliary portion 212 and the main portion 2
Stepped surfaces 213a and 214 of the side portions 213 and 214 of FIG.
The sliding grooves 218, 218 are formed by a and (a in FIG.
3).

At the position near the lower end of the right side portion 214 of the main portion 211 of the tray holder 210, a concave portion 21 facing left is provided.
4b is formed, and a shallow notch 214c facing left is formed at a position slightly above the recess 214b. Further, slits 214d and 214e that are formed rearward and extend in the vertical direction are formed so as to open to the step surface 214a in a portion between the recess 214a and the cutout portion 214c and in a portion above the cutout portion 214c ( (See FIG. 14).

Further, the main portion 211 of the tray holder 210
Supported pins 219, 219, ... Are provided at the upper and lower positions of the outer side surfaces of the side portions 213, 214, respectively. The supported pins 219, 219, ... Of the tray holder 210 are slidable in the sliding slits 142, 142 ,. Engaged. Sliding slits 142, 142, ...
Are the lower ends 142a, 142a, ...
.. and upper end portions 142b, 142b, which are located rearward,
... Inclined portions 142c and 142 that are inclined rearward and upward
It has a shape connected by c, .... Further, guide grooves 131 that are vertically spaced apart from each other and extend in the front-rear direction are formed in the inner portions of the side walls 131 and 131 of the base chassis 130.
, are formed, and the supported pins 219, 219, ... Of the tray holder 210 have the guide grooves 131d, 131d ,.
... is slidably engaged with. Therefore, the tray holder 210 does not move up and down even if the cover frame 141 moves up and down, and the supported pins 219, 219, ...
Is the sliding slits 142, 14 of the cover frame 140
By sliding with respect to 2, it will be moved back and forth (see FIG. 13).

A shutter opening / closing member 220 for opening / closing the shutter 16 of the MD cartridge 10 is attached to the side portion 214 on the right side of the main portion 211 of the tray holder 210.

The shutter opening / closing member 220 is formed of a leaf spring material, and as shown in FIG. 14, is provided so that the surface direction is long in the up-down direction and faces the left and right. A shutter opening piece 221 that projects leftward and has a substantially rectangular shape when seen from the front is provided at the rear end of a substantially middle portion in the vertical direction, and the shutter opening piece (shutter opening member) 221 is provided.
The left edge and the lower edge of the are bent slightly forward and bent edge 2
21a is formed to have an apparent thickness. Further, a shutter closing protrusion (shutter closing member) 222 protruding leftward is provided at a lower end portion of the shutter opening / closing member 220. The shutter closing protrusion 2
22 has a triangular shape when viewed from the front and has a slight thickness in the front-rear direction. Then, the shutter closing protrusion 2
Among the left edges of 22, the inclination of the lower inclined edge 222a is gentler than the inclination of the upper inclined edge 222b.
The shutter closing protrusion 222 is the shutter opening piece 2.
It is located slightly behind 21. This corresponds to the positional relationship between the groove 17 of the MD cartridge 10 and the engagement hole 16d of the shutter 16. Also, the shutter release piece 2
21 between the shutter closing protrusion 222 and the shutter closing protrusion 222, the shutter closing protrusion 222 has an engagement hole 16d.
The lower edge of the shutter opening piece 221 is in contact with the front end of the shutter 16 (see FIG. 1 and FIG. 2 for the direction with respect to the MD cartridge 10) in a state of being engaged with. The shutter opening / closing member 220 is gently curved so that the upper and lower ends thereof are located slightly to the left before being attached to the main portion 211 of the tray holder 210. The portion 2 below the shutter release piece 221
In order that 20a has a stronger resilience, the front edge of the portion is projected more forward than the other portions, and the projected portion is folded back to be doubled.

As can be seen from FIG. 15, the shutter opening / closing member 220 has a portion above the shutter opening piece 221 engaged with the upper slit 214e of the right side portion 214 of the main portion 211 of the tray holder 210, and the shutter opening / closing member 220. A portion between the opening piece 221 and the shutter closing protrusion 222 is engaged with the lower slit 214d and is supported by the tray holder 210. As a result, the shutter release piece 221 has the shallow notch 2 on the right side portion 214 of the main portion 211.
14c to the left, and the shutter closing protrusion 2
22 is located on the left side of the recess 214b. The shutter opening / closing member 220 is the tray holder 210.
By attaching the auxiliary portion 212 to the main portion 211 of the main portion 211 of the main portion 211,
The front surfaces of the slits 214d and 214e formed in No. 1 are closed, so that the shutter opening / closing member 220 is prevented from falling off the tray holder 210. That is,
The shutter opening / closing member 220 is attached to the tray holder 210 by only inserting a part thereof into the slits 214d and 214e formed in the main portion 211 and then attaching the auxiliary portion 212 to the main portion 211. Become.

In the MD tray 150, the left and right engaging sliding pieces 153, 153 are the sliding grooves 21 of the tray holder 210.
8 and 218 are slidably engaged with the tray holder 210, so that the tray holder 210 is movably supported in the vertical direction.
When the MD tray 150 is supported by the tray holder 210 as described above, the shutter opening / closing member 220 is opened.
Shutter opening piece 221 and shutter closing projection 22
2 protrudes leftward from the side surface portion 152 through a slit 154 formed in the right side surface portion 152 of the MD tray 150.

Next, the MD cartridge 10 is placed on the MD tray 150 in the eject position, and then,
The operation of mounting the mechanical deck section 120 on the disc mounting section 162 will be described. In addition, MD tray 15
The mechanism for moving 0 and the cover frame 141 will be described later.

The MD cartridge 10 is placed on the MD tray 150 at the eject position with its front end facing upward (see FIG. 18). In the ejected state, the shutter closing protrusion 222 is in a state of elastically contacting the right side surface of the right side surface portion 152 of the MD tray 150. Therefore, when a loading command, that is, a command for pulling the MD tray 150 into the mechanical deck section 120 and further moving it so as to move it closer to the disc mounting section 162, the MD tray 150 moves upward, and
As the MD tray 150 moves upward, the shutter release piece 221 enters the groove 17 of the MD cartridge 10, and eventually the lock member (not shown) unlocks the shutter 16 to the closed position. The shutter closing projection 222 that contacts the front edge of the intermediate piece 16c of the shutter 16 and, at the same time, corresponds to the wide portion 154a of the slit 154 formed in the right side surface portion 152 of the MD tray 150 is provided with the shutter 16.
Engages with the engaging hole 16d (see FIG. 19). Furthermore, M
When the D tray 150 moves upward, the shutter opening piece 221 presses the front edge of the intermediate piece 16c of the shutter 16 toward the rear of the MD cartridge 10, whereby the shutter 16 moves toward the opening position. Then, when the MD tray 150 is completely retracted into the tray holder 210, the shutter 16 reaches the open position. As a result, the access window 14 and the magnetic head insertion window 15 of the MD cartridge 10 are opened (see FIG. 20).
reference).

The outer casing 11 is covered by the cover 140.
To close the 0 opening 111, the cover frame 140
., The engaging positions of the supported pins 219, 219, ... Of the tray holder 210 with the sliding slits 142, 142, .. From the inclined portion 142c, 1
42c, ... and then upper end portions 142b, 142b, ...
・ Changes to. Then, the sliding slit 142,
Since the upper end portions 142b, 142b, ... Of 142, ... Are located rearward of the lower end portions 142a, 142a ,. Guide grooves 131d, 131d, ...
・ Move backward along. Therefore, the supported pin 21
Tray holder 2 provided with 9, 219, ...
10 moves backwards, and thus the tray holder 210
The MD tray 150 supported by the unit will move backward.

As described above, the main surface portion 1 of the MD tray 150 is moved by the backward movement of the MD tray 150.
The notch 151c of the long hole 151b, the insertion hole 151d, and the notch holes 155a, 15 of the projecting pieces 155, 155 provided in 51.
.. provided on the disk mounting portion 162 of the mechanical chassis 160 are protruded from the main surface 151 of the MD tray 150 to the front side from the 5a. MD cartridge 1 on the front
The lower surface of 0 is placed, and the two mounting bases 1 on the right side are placed.
Engagement protrusions 163a and 163a provided on the reference numerals 63 and 163.
Respectively engage with the positioning hole 18 and the positioning elongated hole 19 formed on the lower surface of the MD cartridge 10 (see FIG. 17). As a result, the MD cartridge 10 is directly placed on the mechanical chassis 160 which is floatingly supported by the base chassis 130, and the mechanical deck 120
It is positioned vertically and horizontally with respect to. At the same time, the turntable 172 of the disc rotating mechanism 170
Is an insertion hole 13 formed on the lower surface of the MD cartridge 10.
To the inside of the MD cartridge 10 and the center plate 12a of the recording medium disk 12 is attracted by the chucking magnet 172a (see FIG. 17).

Then, when recording (reproducing operation of the magnetic head device 190 at the time of recording) or reproducing operation on the recording medium disk 12 is completed and an eject command is issued, the cover frame 141 is moved upward. Then, the MD tray 150 is moved downward to the eject position.

When the cover frame 141 is moved upward, the supported pins 219 and 21 of the tray holder 210 are moved.
9, ... Sliding slits 14 of the cover frame 141
The upper end portions 142b, 1 are engaged with 2, 142, ...
42b, ... to inclined portions 142c, 142c ,.
Through the lower ends 142a, 142a ,. As a result, the tray holder 210 moves forward, and the MD tray 150 supported by the tray holder 210 also moves forward, that is, in the direction away from the disc mounting portion 162. Therefore, the MD cartridge 10 is mounted on the mounting table parts 163, 16 of the disk mounting part 162.
3, the chucking magnet 172a of the turntable 172 of the disc rotating mechanism 170 and the center plate 12a of the recording medium disc 12 are released from the attraction.

Then, when the MD tray 150 is moved downward with respect to the tray holder 210, the shutter attached to the tray holder 210 is opened with respect to the cartridge case 11 which is moved downward together with the MD tray 150. The shutter 16 in which the shutter closing protrusion 222 of the member 220 is engaged with the engagement hole 16d becomes so-called placed on the tray holder 210 side. It will be pulled in the direction. As a result, the shutter 16 is moved toward the closed position.

When the shutter 16 reaches the closed position, the shutter 16 is no longer in the MD cartridge 1.
Since it cannot move in the front direction of 0, the upper inclined edge 222b of the shutter closing protrusion 222 slides along the upper edge of the engagement hole 16d of the shutter 16 and slips out of the engagement hole 16d. Further, in the shutter closing protrusion 222, the upper inclined edge 222b slides up on the upper edge of the wide portion 154a of the slit 154, and the right side surface portion 152 of the MD tray 150.
It will be in elastic contact with the right side of the.

Then, in the eject state, the MD cartridge 10 is taken out from the MD tray 150. Then, when recording or reproducing is performed on another MD cartridge 10, the other MD cartridge 10 is placed on the MD tray 150, or when recording or reproducing is stopped, the loading command is issued as it is. As a result, the MD tray 150 is pulled into the mechanical deck section 120 with nothing placed therein.

Next, in order to move the MD tray 150 with respect to the tray holder 210, move the tray holder 210 in the front-back direction, move the cover frame 141 up and down, and move the magnetic head 192 back and forth. The drive mechanism section of FIG. 21 will be described with reference to FIGS. 21 to 27.

The drive mechanism 230 is the base chassis 130.
The left side part of the drive unit bed 133 is projected slightly to the front side (see FIG. 21).

The drive mechanism unit 230 is the drive unit bed 13 described above.
So that a drive gear 232 provided with a motor 231 fixed to the upper part of the drive unit 3 and provided at a position on the left side in the middle of the drive unit bed 133 in the vertical direction is rotated by the motor 231 via a gear reduction mechanism 233. (See Fig. 22). Then, the cover frame 141 and the two sliders 240 are driven by the drive gear 232.
The 250 is moved vertically.

The tray moving slider 240 is supported on the right end portion of the front surface of the drive unit bed 133 so as to be vertically movable. As shown in FIG. 23, the tray moving slider 240 has a rack 242 formed on the left side edge of a main portion 241 having a vertically long plate shape, and a connecting column 243 directed forward at a position near the lower end of the main portion 241. Is projected.
The connecting column 243 is formed in a channel shape having a U shape when viewed from the front. Further, a restriction rib 244 extending in the up-down direction is projected from the front surface of the main portion 241 near the left edge, and a short switching rib 245 extending in the left-right direction at a position slightly below the lower end of the restriction rib 244. Is projected. Further, a guided rib 246 is provided so as to project forward along the right side edge of the main portion 241. Furthermore, on the rear surface of the main portion 241, there are three sliding protrusions 247, 24.
7, 247 are formed at intervals in the vertical direction.

A sliding groove 133a extending in the vertical direction is formed at a position near the right edge of the front surface of the drive unit bed 133 (see FIG. 22). Also, the drive unit bed 133
A rail member 260 is attached to the right side portion of the front surface of the. On the left side edge of the rail member 260, a protrusion 261 is formed which protrudes forward and extends in the vertical direction.
A guide portion 262 protruding leftward is formed at the front end portion of 61, and a rail groove 262a extending vertically is formed on the rear surface of the guide portion 262 (see FIGS. 21 and 22).

The tray moving slider 240 described above is
Sliding protrusions 247, 24 formed on the rear surface of the main portion 241.
7, 247 are slidably engaged with the sliding groove 133a of the drive unit bed 133, and the guided rib 246 is slidably engaged with the rail groove 262a of the rail member 260, whereby the driving unit is driven. The bed 133 is supported on the right side of the front surface of the bed 133 so as to be vertically movable. And the above MD tray 1
When the 50 is pulled into the mechanical deck section 120,
The tray moving slider 240 is located at the upper end of the moving range, the lower end of the rack 242 is located slightly above the drive gear 232, and the rack 242 is driven by the drive gear 232.
(See FIG. 28). Then, when the tray moving slider 240 is forcibly moved slightly downward from this state (this forcible movement will be described later), the rack 242 meshes with the drive gear 232 from the right side (see FIG. 30). ), As the drive gear 232 rotates, it is moved downward or upward.

Then, the tray moving slider 240
The connecting piece 158 of the MD tray 150 is engaged with the front end portion of the connecting column 243 of the above, so that the tray moving slider 240 is moved in the vertical direction as the drive gear 232 rotates. The MD tray 150 is moved vertically.

As can be seen in FIG. 25, a rack 143 extending vertically for a predetermined length is provided to the right at approximately the center in the vertical direction of the rear end portion of the left side surface portion 141b of the cover frame 141 described above. It is formed so as to project. In addition, the rack 14 on the right side surface of the left side surface portion 141b
A switching protrusion 144 is provided to the right of the rack 143 so as to overlap the front end of the rack 143 in the front-rear direction. Further, at a position slightly shifted to the left from the right end of the rack 143, the restriction rib 14 extends in the vertical direction, the lower end ends slightly above the switching projection 144, and the upper end extends further above the upper end of the rack 143.
5 is projected toward the front. Furthermore, a pressing protrusion 146 protruding rightward is formed on the upper end portion of the rear end of the left side surface portion 141b, and the pressing protrusion 146 and the rack 14 are formed.
Trapezoidal protruding piece 1 that protrudes to the right at the portion between the upper end of 3
47 is formed. The amount of protrusion of the pressing protrusion 146 to the right is slightly larger than the amount of protrusion of the trapezoidal protrusion 147 to the right.

When the cover frame 141 is at the upper end of the moving range, that is, in the eject state, the lower end of the rack 143 is located slightly above the drive gear 232 and the rack 143 is driven. Gear 2
It does not mesh with 32 (see FIGS. 31 and 32). Then, when the tray moving slider 240 is moved upward and reaches the upper end of the moving range, the cover frame 1
41 is forcibly moved downward, whereby the rack 143 meshes with the drive gear 232 from the left side (see FIG. 32) and is moved downward or upward as the drive gear 232 rotates. .

A switching lever 270 is rotatably supported on the front side of the drive unit bed 133 at a position just above the drive gear 232 (see FIGS. 21 and 22). Switching lever 27
As can be seen in FIG. 26, 0 is from the boss portion 271 whose axial direction extends in the front-rear direction, the first switching arm 272 protruding leftward and downward from the front half portion of the boss portion 271, and the rear half portion of the boss portion 271. The second switching arm 27 protruding downward to the right
And 3 are integrally formed. Then, the switching lever 2
70 is a boss portion 271 and is rotatably supported on the front side of the drive unit bed 133.

In the switching lever 270, the tray moving slider 240 is located at the upper end of the moving range, that is, the MD tray 150 is in the mechanical deck section 12.
In the retracted position retracted into 0, the tip end of the second switching arm 273 on the right side is located between the lower end of the restriction rib 244 and the switching rib 245. At this time,
As described above, the rack 242 of the tray moving slider 240 does not mesh with the drive gear 232.
Further, in this same state, the upper end of the rack 143 of the cover frame 141 meshes with the drive gear 232, and the tip of the first switching arm 272 of the switching lever 270 is on the right side surface of the regulating rib 145 of the cover frame 141. It abuts, and is thereby regulated so as not to rotate in the clockwise direction when viewed from the front from that state (see FIG. 32). Therefore, the switching lever 2 whose rotation is restricted as described above
The distal end portion of the second switching arm 273 of 70 is in contact with the lower end of the regulation rib 244 of the tray moving slider 240, which causes the tray moving slider 240 to move further downward, that is, the rack 242 is driven. It prevents the gear 232 from meshing.

As shown in FIG. 24, the head moving slider 250 has a moving portion 251 and an acting portion 252 which are in an inverted L shape when viewed from the front, that is, the moving portion 25.
The action portion 252 has a shape protruding from the substantially upper half portion of No. 1 to the right. Further, the acting portion 252 is the moving portion 251.
It is located on the front side. The moving portion 251 and the acting portion 252 are connected by an intermediate wall 253 having a narrow front-rear width.

Moving part 25 of head moving slider 250
1 has a plate shape that is long in the vertical direction, and a rack 254 is formed on the right side edge of the lower half. In addition, the moving unit 25
The upper half of 4 has an inverted J-shaped slot 2 when viewed from the front.
55 is formed, and the lower end 255a of the slot 255 bites slightly into the left edges of the intermediate wall 253 and the action portion 252. Then, the lower end portion of the intermediate wall 253, that is,
An abutting protrusion 253a is provided so as to project leftward from a portion located immediately above the lower end portion 255a of the slot 255. The left side edge of the moving portion 251 has its front surface scraped off to form a thin guided edge 251a.

Actuator 25 of head moving slider 250
2 has a notch 256 that opens downward in the portion closer to the left side.
Is formed, and a guided slot 257 extending vertically is formed adjacent to the right side of the notch 256.

Actuator 25 of head moving slider 250
A cam portion 258 formed of a wall protruding toward the front is formed on the right edge of 2, and the front edge thereof is the cam edge.
The cam edge is a middle position where a standby position portion 258a located on the rear side and extending in the vertical direction and a recording position portion 258b located on the front side and extending in the vertical direction above the standby position portion 258a are inclined rearward and downward. They are connected by the portion 258c. Further, a drop-out preventing piece 259 is formed so as to surround a position slightly separated from the respective portions of the cam edge forward and both upper and lower ends.

The head moving slider 250 described above is
The moving portion 251 is arranged at a position closer to the left side on the front surface of the drive unit bed 133, and the acting portion 252 is arranged at the front side of the tray moving slider 240. And
In the inner surface of the left side wall 131 of the base chassis 130, a plurality of pressing pieces 134 are vertically spaced apart from each other so as to project to the right at a position slightly separated from the front surface of the drive unit bed 133 to the front side. , 134, ... Are the guided edges 25 of the moving portion 251 of the head moving slider 250.
The front end portion of the guide column 263 that is projected forward from the position near the upper end of the rail member 260 is slidably engaged with the guided slot 257 provided in the action portion 252, and Thus, the head moving slider 250 is supported by the drive unit bed 133 so as to be vertically movable (see FIG. 21).

The lower end of the rack 254 is located slightly above the drive gear 232 while the head moving slider 250 is located at the upper end of the moving range, that is, at the standby position. Drive gear 23
It is in a state of not meshing with 2 (see FIG. 28). Further, in this state, the action pin 20 of the head shift plate 200
2 is in contact with the standby position portion 258a of the cam portion 258, and therefore the front side 203a of the regulation piece 203 of the head shift plate 200 is located at the rearmost portion of the movement range, whereby the regulation piece 203 of the regulation piece 203 is moved. The operated piece 194c of the arm support plate 194, which is in contact with the rear surface of the front side 203a, cannot move further forward, so that the lower end of the arm support plate 194 supporting the magnetic head 192 moves backward. Therefore, the magnetic head 192 is located at the standby position which is the front end of the moving range (see FIG. 11).
In addition, the connection base 19 is provided on the front side of the head support arm 193.
Since the first restriction piece 191c is positioned, the head support arm 193 cannot move further forward than the position shown in FIG. As a result, the head support arm 193 comes out more than necessary forward and comes into contact with the foreign matter, and the head support arm 193 and the head support arm 19 are contacted.
It is prevented that the magnetic head 192 and the like supported by No. 3 are damaged.

A stop lever 280 is rotatably supported on the front surface of the upper end of the drive unit bed 133. As can be seen in FIG. 27, the stop lever 280 has a plate shape that is long in the vertical direction, and has a fulcrum shaft 28 protruding rearward at the upper end.
1 and an engaging pin 292 protruding forward at the lower end. The stop lever 280 is on the rear side of the moving portion 251 of the head moving slider 250 so that the lower end portion swings left and right with the upper end portion serving as a pivot.
Supported by. That is, at the leftward position of the upper end of the front surface of the drive unit bed 133, a necessary (Kaname) part is located at the upper end, and a vertically long fan-shaped recess 133b is formed. Support hole 1
33c is formed (see FIG. 22). The fulcrum shaft 281 of the stop lever 280 is connected to the support hole 133c.
The stop lever 280 is rotatably supported in the fan-shaped recess 133b. Then, the engagement pin 28 of the stop lever 280
2 is slidably engaged with the slot 255 of the head moving slider 250. It should be noted that when the head moving slider 250 is in the standby position described above, the engagement pin 282 of the stop lever 280 is located at the lower end portion 255a of the slot 255, and this state will be described later. Right side edge 147 of the shape protrusion 147
It is held by a (see FIG. 28). Therefore, the engagement pin 182 of this stop lever 280 is
The head moving slider 250 cannot move downward unless it comes out of the lower end portion 255a of 55.

Next, the operation of the drive mechanism section 230 will be described with reference to FIGS. 28 to 34.

First, the operation of the drive mechanism section 230 in the closed state in which the opening 111 of the outer casing 110 is closed will be described. In the closed state, the mechanical deck section 120 is in a state of not operating and the recording medium disk 12 is being reproduced.
And the recording state (position) in which the mechanical deck section 120 is recording on the recording medium disk 12.

In the stopped / reproduced state, as shown in FIG. 28, the tray moving slider 240 and the head moving slider 250 are both located at the upper end of the moving range, and the racks 242 and 254 are not connected to the drive gear 232. Not meshing. Further, the cover frame 141 is positioned immediately before reaching the lower end of the moving range, and is in a state immediately before the upper end of the rack 143 is disengaged from the mesh with the drive gear 232. The switching lever 270 is fully rotated counterclockwise when viewed from the front, and the tip end of the second switching arm 273 is located between the lower end of the regulation rib 244 of the tray moving slider 240 and the switching rib 245. The first switching arm 272 is in a state of being inserted, and the tip end of the first switching arm 272 is in contact with the right side surface of the regulation rib 145 of the cover frame 141. Further, the engagement pin 282 of the stop lever 280 is connected to the lower end portion 255 a of the slot 255 of the head moving slider 250.
And the right edge 147a of the trapezoidal protrusion 147 of the cover frame 141 on the left side of the engagement pin 282.
Are in contact with each other, which prevents the engagement pin 182 from being disengaged from the lower end portion 255a of the slot 255. Further, the tip end portion of the pressing protrusion 146 of the cover frame 141 has an abutting protrusion 253 of the head moving slider 250.
It is in contact with a from above.

In the stop / playback state described above, the action pin 202 of the head shift plate 200 is in contact with the standby position portion 258a of the cam portion 258 of the head moving slider 250, and therefore, the restricting piece 203 of the head shift plate 200.
The front side 203a of the arm support plate 194 is located at the rear end of the movement range.
Since the operated piece 194c of the head is prevented from moving forward, the arm support plate 194 is located at the front end of the rotation range, and the lower end portion of the head support arm 193 is moved backward by the arm support plate 194. Has been blocked from moving,
The magnetic head 192 supported by the lower end of the head support arm 193 is in the state of being stopped at the front end of the moving range, that is, the standby position (see FIG. 11).

In the stop / playback state described above,
Just before the cover frame 141 reaches the lower end of the moving range,
That is, the cover member 140 located at the closed position and supported by the front frame portion 141a of the cover frame 141 covers the front surface of the disc mounting portion 162 and closes the opening 111 of the outer casing 110 (FIG. 1). reference).

Furthermore, in the above-mentioned stopped / reproduced state, the MD tray 150 is in the retracted position retracted into the mechanical deck section 120, and the tray holder 2
Since 10 is located at the rear end of the moving range, the MD tray 150 moves further rearward from the retracted position and is located at the loading position closest to the disc mounting portion 162 (see FIG. 17).

In order to load the MD cartridge 10 into the disc mounting portion 162 from the stopped / reproducing state described above, to eject the MD cartridge 10 loaded in the disc mounting portion 162 from the mechanical deck portion 120, or When an eject command is issued in order to replace the MD cartridge 10 loaded in the disc mounting portion 162 with another MD cartridge 10, the motor 231 is driven, and the drive gear 232 is in the clockwise direction when viewed from the front, that is, It rotates in the direction of arrow CW in the figure. The above-described eject command is issued based on an action such as the user pressing an eject button (not shown).

Then, when the drive gear 232 rotates in the clockwise direction, the rack 143 is moved from the drive gear 232 and the left side.
The cover frame 141 meshed with moves upward, that is, in the direction of arrow F in the figure. Cover frame 141
As the cover body 140 opens the lower end portion of the mechanical deck portion 120 as it moves upward, the guided pins 141d and 141d that move upward are provided on the side walls 112 and 112 of the outer casing 110. Guide grooves 113, 113 provided
From the lower end portions 113b, 113b to the intermediate portions 113c, 11
Since it moves to the upper end portions 113a and 113a via 3c (see FIG. 7), the mechanical deck portion 120 is inclined so that the lower end portion thereof projects from the opening 111 of the outer casing 110 (see FIG. 5). At the same time, the positions of the supported pins 219, 219, ... Of the tray holder 210 engaged with the sliding slits 142, 142, ... As the cover frame 141 moves upward. .. changes from the upper end portions 142b, 142b, ... located on the rear side to the lower end portions 142a, 142a ,. Therefore, the tray holder 210 moves to the front side, and the MD tray 150 supported by the tray holder 210 moves to the front side, that is, in the direction away from the disc mounting portion 162.

When the cover frame 141 reaches just before the upper end of the moving range, the switching protrusion 144 formed slightly forward of the rack 143 at the position corresponding to the lower end of the rack 143 makes the first switching of the switching lever 270. Arm 272
It abuts against the tip of the from below (see FIG. 29). When the cover frame 141 further moves slightly upward from there, the cover frame 141 reaches the upper end of the moving range,
The rack 143 is disengaged from the drive gear 232, and the cover frame 141 is prevented from moving upward any more. During this time, the switching projection 144 is moved to the first position of the switching lever 270.
Of the switching arm 272 is pushed upward, whereby the switching lever 270 rotates in the clockwise direction when viewed from the front, that is, in the direction of arrow CW in the drawing, and the second switching arm 273 is rotated by the rotation. The tip of the tray is the tray moving slider 24
The 0 switching rib 245 is pressed downward. The tray moving slider 240 moves slightly downward when the switching rib 245 is pressed downward by the second switching arm 273 of the switching lever 270, whereby the rack 242 meshes with the drive gear 232 from the right side (see FIG. After that, the tray 242 is moved downward by the rack 242 being fed by the drive gear 232.

Then, when the cover frame 141 reaches the upper end of the moving range, the lower end of the mechanical deck 120 projects forward from the opening 111 of the outer casing 110, and
The cover body 140 is in a state where the inside of the lower end portion of the mechanical deck portion 120 is open toward the front (see FIG. 5).

When the tray moving slider 240 starts moving downward, the second switching arm 273 of the switching lever 270 is moved.
Of the tray is the regulation rib 244 of the tray moving slider 240.
Of the switching lever 270 is prevented from rotating in the counterclockwise direction. On the other hand, the first switching arm 272 of the switching lever 270
Is located between the lower end of the regulating rib 145 of the cover frame 141 and the switching projection 144, and the lower end of the regulating rib 145 is regulated by the distal end of the first switching arm 272. There is no possibility that the frame 141 moves downward from this state and the rack 143 meshes with the drive gear 232 (see FIGS. 30 and 31).

As described above, the tray moving slider 2
As 40 moves downward, tray moving slider 2
MD in which the connecting pillar 243 of 40 and the connecting piece 158 are engaged
The tray 150 moves so as to protrude downward from the tray holder 210. Then, the MD tray 150 has reached the eject position described above (see FIGS. 4, 16, and 1).
By the way, the motor 231 is stopped and the drive gear 2
32 stops rotating. In addition, the tray moving slider 2
The fact that 40 has reached the lower end of the movement range (see FIG. 31) is detected by a sensor (not shown), the detection result is input to the control device, and the control device stops the motor 231 and other necessary electrical processing. Is done. As the sensor, a contact type switch or a non-contact type switch, such as an optical sensor or a magnetic sensor such as a Hall element, can be applied.

When an eject operation is performed directly or after a stop from the reproduction operation or the recording operation, the reproduction or recording is completed from the MD tray 150 at the eject position.
The D cartridge 10 is taken out, and a new MD cartridge 10 is inserted into the MD tray 150 as necessary,
Alternatively, when the MD cartridge 10 for reproduction or recording is loaded from the state where the MD cartridge 10 is not inserted in the MD tray 150, that is, when the eject operation is performed to mount the MD cartridge 10 on the disc mounting portion 162, the eject position is set. The MD cartridge 10 is inserted into the MD tray 150 at. Then, as described above, M
After a used MD cartridge 10 is taken out of the D tray 150 or a new MD cartridge 10 is inserted into the MD tray 150, when a loading command is issued, the motor 231 is driven and the drive gear 232 is driven from the front. Seen, it is rotated counterclockwise. The loading command is issued based on an action such as the user pressing an eject button (not shown). That is, normally, the eject button has different commands issued depending on the state when the eject button is pressed. For example, when the button is pressed in the stop / playback state, the eject command is output, and when the button is pressed in the eject state, the loading command is output.

When the drive gear 232 starts rotating in the counterclockwise direction, that is, in the CCW direction shown in the figure, the tray moving slider 240 starts moving upward.

As the tray moving slider 240 moves upward, the tray moving slider 240 and the connecting column 2 are moved.
43, the MD tray 150 connected via the connecting piece 158 is drawn into the tray holder 210, and the MD cartridge 150 is supported by the MD tray 150 by the time the MD tray 150 reaches the retracted position. If so, the shutter 16 is opened by the shutter opening piece 221 of the shutter opening / closing member 220, as described above.

Then, when the tray moving slider 240 comes close to the upper limit of the moving range, the switching rib 245 of the tray moving slider 240 comes into contact with the tip of the second switching arm 273 of the switching lever 270 (see FIG. 30). From there, the tray moving slider 240 further moves slightly upward to reach the upper end of the moving range, and the rack 242 is disengaged from the mesh with the drive gear 232 and stopped (see FIG. 32), and the MD tray 150 is at the retracted position. Reach Further, during this time, the switching rib 2 of the tray moving slider 240
45 pushes the tip portion of the second switching arm 273 of the switching lever 270 upward, whereby the switching lever 270 moves in the counterclockwise direction when viewed from the front, that is, the arrow CCW in the figure.
Rotate in the direction.

The switching lever 270 is rotated counterclockwise as described above, whereby the first switching arm 272 is rotated.
Of the cover frame 141 pushes the switching projection 144 of the cover frame 141 downward, whereby the cover frame 141 is moved slightly downward, and the rack 143 drives the drive gear 232.
(See FIG. 32). When the rack 143 meshes with the drive gear 232, the cover frame 141 is moved downward, and the tip of the first switching arm 272 of the switching lever 270 slides on the right side surface of the regulation rib 145 of the cover frame 141. As a result, the switching lever 270 is prevented from rotating in the clockwise direction. Therefore, since the lower end of the regulating rib 244 is prevented from moving by the tip of the second switching arm 273 of the switching lever 270, the tray moving slider 240 is prevented from moving downward.

As described above, by moving the cover frame 141 downward, the cover frame 141 is moved downward.
While the cover body 140 supported on the inner wall of the mechanical deck 120 closes the inner portion of the mechanical deck portion 120, the guided pins 141d and 14d on the lower side of the cover frame 141 are provided in the side walls 112 and 112 of the outer casing 110. 113, 113 from the upper end portions 113a, 113a to the intermediate portions 113c, 113
Since it moves to the lower end portions 113b and 113b via c (see FIG. 6), the mechanical deck portion 120 is inclined so that the lower end portion thereof protrudes from the opening 111 of the outer casing 110 and enters the outer casing. To go. At the same time, the supported pins 219, 219, ... Of the tray holder 210.
Are engaged with the sliding slits 142, 142, ... As the cover frame 141 moves upward.
Lower end portions 142a, 142a located on the front side of the
.. to the upper end portions 142b, 142b, ... Positioned on the rear side through the inclined portions 142c, 142c, ..., The tray holder 210 moves to the rear side, and the tray holder 210 moves. The MD tray 150 supported by 210 is moved to the rear side, that is, in the direction toward the disc mounting portion 162.

Then, when the cover frame 141 reaches just before reaching the lower end of the moving range, it is detected by the detecting means (not shown), the motor 131 is stopped, and the loading operation is completed to enter the stopped / reproduced state. . And in this stopped / played state, as described above,
The MD tray 150 reaches the disc mounting portion 162 (see FIG. 17), and the MD cartridge 150 is placed in the MD tray 150.
When 0 is supported, the engaging protrusions 163a and 163a provided on the disc mounting portion 162 engage with the positioning holes 18 and the positioning elongated holes 19 of the MD cartridge 10 for positioning in the surface direction. The cartridge case 11 is mounted on the mounting table 163, 16
Directly supported by 3, ... That is, the MD cartridge 10 is slightly separated from the main surface portion 151 of the MD tray 150 to the front side, and is directly supported by the mechanical chassis 160 which is floatingly supported by the base chassis 130 via the damper members 161, 161 ,. Will be. Therefore, when vibration or shock is applied via the outer casing 110, the vibration or shock is applied to the damper member 16
.., 161, ..., so that the MD cartridge 10 is less affected by the vibration or shock.

When a reproduction command is issued in this stop / reproduction state, the spindle motor 171 is driven to rotate the turntable 172, and the turntable 1 is rotated.
While the recording medium disc 12 chucked by 72 is rotated, the optical pickup 180 moves in the radial direction of the recording medium disc 12 while the objective lens 1
The beam light is applied to the signal recording surface of the recording medium disk 12 via 86, the return light of the beam light reflected by the signal recording surface is read by the light detecting means, and the read result is processed to process the recording medium disk. The information recorded in 12 is read, that is, the reproducing operation is performed. The above-mentioned reproduction command is issued based on an action such as the user pressing a reproduction button (not shown). The loading operation may be performed when the playback button is pressed in the eject state, and the playback operation may be continuously started when the loading operation is completed.

When a recording command is issued from the above-mentioned stopped / reproduced state, the motor 231 is driven and the drive gear 232.
Is counterclockwise when viewed from the front, that is, arrow C in the figure
It is rotated in the CW direction. As a result, the cover frame 141 is moved slightly downward, and then the rack 143 is disengaged from the mesh with the drive gear 232 and stopped. Then, while the cover frame 141 moves slightly downward, the pressing protrusion 146 causes the abutting protrusion 253 of the head moving slider 250.
Press a downward. Further, the engagement pin 282 of the stop lever 280 is the trapezoidal protrusion 14 of the cover frame 141.
Since the state corresponding to the portion between 7 and the pressing protrusion 146 is provided, there is nothing that prevents the stop lever 280 from rotating in the clockwise direction when viewed from the front, and therefore, the head moving slider 250 is moved downward. As a result of the movement, the engaging pin 282 moves to the lower end portion 255 of the inverted J-shaped slot 255.
It slides on the inclined surface 255b following a and enters the main portion 255c of the slot 255 which extends in the vertical direction. Then, during this time, the rack 254 of the head moving slider 250 meshes with the drive gear 232 from the left side, whereby the head moving slider 250 is further moved downward (see FIG. 33).

As the head moving slider 250 is moved downward, the action pin 202 of the head shift plate 200 is moved.
The contact position of the head with the cam portion 258 of the head moving slider 250 moves from the lower side to the upper side. That is, the action pin 202 relatively moves the cam portion 258 from the standby position portion 258a located at the rear to the recording position portion 258b located at the front via the intermediate position portion 258c. Therefore, the head shift plate 200 rotates so that the restriction piece 203 provided at the lower end moves forward. Then, as described above, the lower end portion, that is, the portion where the support piece 194a supporting the lower end portion of the head support arm 193 from the rear is located is urged by the elastic force of the head support arm 193 to move rearward. Arm support plate 194
Since the front side 203a of the restricting piece 203 of the head shift plate 200 which has prevented the forward movement of the operated piece 194c of the arm shifter 194c escapes to the front side, the arm support plate 194 is moved to the upper end portion, that is, the operated side. The piece 194c is rotated so that the piece 194c moves forward and the lower end, that is, the support piece 194a, moves backward. When the arm support plate 194 rotates as described above, the front end portion of the head support arm 193, which is urged by the elastic force of the arm support plate 194 so that the lower end portion supporting the magnetic head 192 moves rearward, is supported from the rear side. Since the supporting piece 194a of the arm supporting plate 194 that has been moved so as to escape rearward, the lower end portion of the head supporting arm 193 moves rearward, and accordingly, the magnetic head 192 supported by the lower end portion of the head supporting arm 193. Moves backwards, M
The recording medium disk 12 is contacted through the magnetic head insertion window 15 of the D cartridge 10 (see FIG. 12). When the downward movement of the head moving slider 250 is stopped (see FIG. 34), the magnetic head 192 moves integrally with the optical pickup 180 and the recording medium disk 1
The recording of the signal for 2 is made. The downward movement of the head moving slider 250, that is, the stopping of the motor 231 is performed by detecting that the head moving slider 250 has reached a predetermined position by a detection unit (not shown).

When the recording operation is completed or when a stop command is issued by pressing the stop button or the like, the motor 231 is driven and the drive gear 232 is viewed in the clockwise direction as viewed from the front, that is, the arrow in the figure. It is rotated in the CW direction, whereby the rack 254 is sent and the head moving slider 250 is moved upward. As the head moving slider 250 moves upward, the head shift plate 20
The action pin 202 of 0 moves the cam portion 258 to the recording position portion 258.
b from the intermediate position 258c to the standby position 258a, the head shift plate 200 is rotated so that the lower end of the head shift plate 200 moves rearward.
The operated piece 194c of the arm support plate 194 is pushed rearward by the front side 203a of the regulation piece 203 of 0, and therefore the lower end portion of the arm support plate 194 moves forward against the biasing force of the head support arm 193. The magnetic head 19 of the head support arm 193.
The lower end supporting 2 moves forward, and the magnetic head 192
Are separated from the recording medium disk 12 forward.

When the head moving slider 250 moves until just before reaching the upper end of the moving range, the abutting protrusion 253a of the head moving slider 250 comes into contact with the pressing protrusion 146 of the cover frame 141 from below (FIG. 3).
3). From there, head moving slider 25
When 0 moves upward, the abutting protrusion 253a pushes the pressing protrusion 146 upward, whereby the cover frame 141 is slightly moved upward, and the rack 143 meshes with the drive gear 232 from the left side. At the same time, The rack 254 of the head moving slider 250 disengages upward from the drive gear 232 and stops moving to enter the stop / playback state described above (see FIG. 28). This state is detected by the detection means (not shown), and the motor 231 stops.

In the recording / reproducing apparatus 100 described above,
A disk rotation mechanism 170 provided with a turntable (recording medium mounting portion) 172 on which a recording medium disc (recording medium) 12 is mounted, and a recording medium turntable 172.
A cover body (moving portion) 140, a moving portion such as a tray (moving portion) 150, which is moved at the time of loading, is configured to be integrally movable with respect to the outer casing 110. Guide groove (movement control unit) provided on the outer casing
The mounting portion 172 and the moving portions 140 and 150 are designated by 113.
Are moved integrally with each other so that an insertion / removal opening for inserting / removing the recording medium disk 12 is formed.
It becomes possible to supply the recording medium disk 12 at an arbitrary angle with respect to the front surface of 0, whereby the restriction on the installation position of the recording / reproducing apparatus 100 is relaxed.

In the above-described embodiment, the recording / reproducing apparatus of the present invention uses the MD cartridge in which the MD (mini disk) is rotatably housed in a flat cartridge case having a square planar shape. It has been shown that it is applied to a recording and reproducing device for recording and reproducing
Other than the MD cartridge, it can be widely applied to an apparatus that performs only recording, an apparatus that performs only reproduction, and an apparatus that performs recording and reproduction using a cartridge in which a recording medium is housed in a case.

Further, a so-called bare recording medium, such as a CD, which is not housed in the cartridge case.
(Compact Disk), CD-ROM (Compact Disk Read
It can also be applied to an apparatus that records and / or reproduces data in a Only Memory), a DVD (Digital Versatile Disk), or the like.

Further, the shapes and structures of the respective portions shown in the above-mentioned embodiments are merely examples of the embodiment to be carried out when the present invention is carried out, and the technical scope of the present invention is thereby provided. It should not be interpreted in a limited way.

[0122]

As is apparent from the above description, the loading mechanism of the present invention moves the recording medium mounting portion on which the recording medium is mounted, and the recording medium mounting portion when the recording medium is mounted on the recording medium mounting portion. The moving unit is integrally movably supported by the outer casing, and the recording medium mounting unit and the moving unit are integrally moved by the movement control unit provided in the outer casing along with the movement of the moving unit. Then, an insertion / removal opening for inserting / removing the recording medium is formed.

Therefore, in the loading mechanism of the present invention, when the recording medium is loaded, the recording medium mounting portion and the moving portion integrally move with respect to the outer casing to insert and remove the recording medium. Thus, the recording medium can be supplied at an arbitrary angle to the front surface of the outer casing.

In the invention described in claim 2, as the moving part, a tray for conveying the recording medium between the eject position for inserting and removing the recording medium and the recording medium mounting part, and the tray. After the recording medium is conveyed to the recording medium mounting portion by the cover body, the cover body moves so as to cover the recording medium, the engagement pin is moved integrally with the cover body, and the engagement provided on the outer casing. A rotation cam portion with which the pin is slidably engaged, and the engagement pin that moves with the movement of the cover body slides on the rotation cam portion, so that a recording medium mounting portion and a tray are provided. Since the cover body is integrally rotated to form the insertion / removal opening for moving the tray, the tray is projected from the insertion / removal opening.
No power is required to integrally rotate the tray and the cover with respect to the outer casing, and the timing of the movement of the cover and the rotation with respect to the outer casing can be accurately set.

The recording / reproducing apparatus of the present invention is a recording / reproducing apparatus for recording and / or reproducing a signal to / from a recording medium, wherein the recording medium mounting section on which the recording medium is mounted and the recording medium mounting section on which the recording medium is mounted. And a moving unit that is moved when the moving unit is mounted on the outer casing are movably supported integrally with the outer casing, and moves with the recording medium mounting unit by a movement control unit provided in the outer casing as the moving unit moves. The department moves together,
It is characterized by comprising a loading mechanism in which an insertion / removal opening for inserting / removing the recording medium is formed.

Therefore, in the recording / reproducing apparatus of the present invention,
When the recording medium is loaded, the recording medium mounting portion and the moving portion integrally move with respect to the outer casing to form an insertion / removal opening for inserting / removing the recording medium. It is possible to supply the recording medium at the above angle, which alleviates the restrictions on the installation position of the recording / reproducing apparatus.

In the invention described in claim 4, as the moving part, a tray for conveying the recording medium between the eject position for inserting and removing the recording medium and the recording medium mounting part, and the tray. After the recording medium is conveyed to the recording medium mounting portion by the cover body, the cover body moves so as to cover the recording medium, the engagement pin is moved integrally with the cover body, and the engagement provided on the outer casing. A rotation cam portion with which the pin is slidably engaged, and the engagement pin that moves with the movement of the cover body slides on the rotation cam portion, so that a recording medium mounting portion and a tray are provided. Also, since the cover is provided with a loading mechanism that allows the tray to project from the insertion / removal opening after the cover is integrally rotated to form an insertion / removal opening for moving the tray, the recording medium loading portion, the tray, and the cover are removed. Rotate integrally with the casing It does not require power in order to, also, it is possible to take precisely the timing of turning with respect to the movement and the outer housing of the cover body.

[Brief description of drawings]

FIG. 1 shows an MD cartridge, which is a recording medium cartridge used in the recording / reproducing apparatus to which the present invention is applied, together with FIG.

FIG. 2 is a perspective view showing a usage state from below.

FIG. 3 is a perspective view showing the entire recording / reproducing apparatus in a closed state.

FIG. 4 is a perspective view showing the entire recording / reproducing apparatus in an eject state.

FIG. 5 is a perspective view showing the entire recording / reproducing apparatus in a state in the middle of a closed state and an eject state.

FIG. 6 is a right side view of a mechanical deck section.

FIG. 7 is a diagram showing an inner surface of a side wall of an outer casing.

FIG. 8 is a schematic exploded perspective view of a mechanical deck unit.

FIG. 9 is a front view of a mechanical chassis and members provided on the mechanical chassis.

FIG. 10 is an exploded perspective view of a magnetic head device.

FIG. 11 is a left side view of the optical pickup and the magnetic head device in a non-recording state.

FIG. 12 is a left side view of the optical pickup and the magnetic head device in a recording state.

13 is a view showing a mechanism for conveying the MD cartridge between the eject position and the disc mounting portion together with FIGS. 14 to 20, and is an exploded perspective view of the whole.

FIG. 14 is a view showing a main part of a shutter opening / closing member and a tray holder together with FIG. 15, and this figure is a perspective view showing the both separately.

FIG. 15 is a perspective view of an essential part showing a state where a shutter member is attached to a tray holder.

FIG. 16 is a side view showing the ejected state with a part cut away.

FIG. 17 is a side view showing a state in which a part of the MD tray is located at the disc mounting portion by cutting away.

FIG. 18 is a front view showing a state in which the MD tray is moved to the pull-out position, that is, an eject state is partially omitted.

FIG. 19 is a front view showing a state in which the shutter opening piece is in contact with the front end of the shutter with a part thereof omitted.

FIG. 20 is a front view showing a state in which the MD tray has moved to the retracted position and the shutter has reached the open position, with some parts omitted.

FIG. 21 is a schematic perspective view showing a drive mechanism section.

FIG. 22 is a schematic exploded perspective view showing a drive mechanism section.

FIG. 23 is a perspective view of a tray moving slider.

FIG. 24 is a perspective view of a head moving slider.

FIG. 25 is a perspective view showing a main part of a cover frame.

FIG. 26 is a perspective view of a switching lever.

FIG. 27 is a perspective view of a stop lever.

FIG. 28 is a front view showing the operation of the drive mechanism section only in the main part together with FIG. 29 to FIG. 34, and this figure shows the stopped / reproducing state.

FIG. 29 shows a state immediately before the cover body moves to the lower side and the cover body reaches the open position.

FIG. 30: The cover frame reaches the upper end of the moving range,
It shows a state immediately after the tray moving slider starts moving downward.

FIG. 31 shows a state in which the tray moving slider has reached the lower end of the movement range and the MD tray has reached the eject position.

FIG. 32 shows a state immediately after the tray moving slider reaches the upper end of the moving range and the cover frame starts moving downward.

FIG. 33 shows a state immediately after the cover frame slightly moves from the stopped / reproducing state to reach the lower end of the moving range, and the head moving slider starts moving downward.

FIG. 34 shows a state where the head moving slider has moved to the lowermost end of the moving range and is in a recording state.

[Explanation of symbols]

12 ... Recording medium disk (recording medium), 100 ... Recording / reproducing device, 110 ... Outer casing, 113 ... Guide groove (movement control unit)
(Rotating cam part), 140 ... Cover body (moving part), 141
d ... Guided pin (engagement pin), 150 ... MD tray (moving part) (tray), 172 ... Turntable (recording medium mounting part)

Claims (4)

[Claims] 1. A recording medium mounting section on which a recording medium is mounted and a moving section which is moved when the recording medium is mounted on the recording medium mounting section are integrally movably supported in an outer casing. Along with the movement of the moving unit, the movement control unit provided in the outer casing integrally moves the recording medium mounting unit and the moving unit to form an insertion / removal opening for inserting / removing the recording medium. A loading mechanism characterized by that. 2. A tray as the moving unit, which conveys the recording medium between an eject position for inserting and removing the recording medium and the recording medium loading unit, and a tray which transports the recording medium to the recording medium loading unit. And a cover body that moves so as to cover the recording medium, the engagement pin being integrally moved with the cover body, and the engagement pin provided on the outer casing and slidably engaged with the engagement pin. The recording medium mounting portion, the tray and the cover body are integrally rotated by sliding the engagement pin that moves with the movement of the cover body on the rotation cam portion. The loading mechanism according to claim 1, wherein the tray is protruded from the insertion / removal opening after the insertion / removal opening for moving the tray is formed. 3. A recording / reproducing apparatus for recording and / or reproducing a signal to / from a recording medium, comprising: a recording medium mounting section on which the recording medium is mounted; and a case where the recording medium is mounted on the recording medium mounting section. And a moving unit that is moved to the outer casing are movably supported integrally with the outer casing, and the recording medium loading unit and the moving unit are integrated by a movement control unit provided in the outer casing according to the movement of the moving unit. A recording / reproducing apparatus comprising a loading mechanism that is moved to a position where an insertion / removal opening for inserting / removing a recording medium is formed. 4. A tray for transporting the recording medium between the eject position for inserting and removing the recording medium and the recording medium loading section as the moving section, and the recording medium for transporting to the recording medium loading section by the tray. And a cover body that moves so as to cover the recording medium, the engagement pin being integrally moved with the cover body, and the engagement pin provided on the outer casing and slidably engaged with the engagement pin. The recording medium mounting portion, the tray and the cover body are integrally rotated by sliding the engagement pin that moves with the movement of the cover body on the rotation cam portion. 4. The recording / reproducing apparatus according to claim 3, further comprising a loading mechanism for ejecting the tray from the insertion / removal opening after the insertion / removal opening for moving the tray is formed.