JP2002032949A - Recording medium cartridge holder and recording and/or reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent insertion in any directions other than the normal direction of a recording medium cartridge having a specified shape with a simple mechanism. SOLUTION: This device is provided with a main supporting part 130, a conveying part 150 for drawing a recording medium cartridge 1 supported to be freely moved between a standby position and a specified drawing position, and held in the standby position, a locking part 170 for locking the conveying part in the standby position, and an insertion regulating part 144a for preventing the passage of the recording medium cartridge in the direction other than the normal direction of the same. The locking part release the locking of the conveying part by the recording medium cartridge passed through the insertion regulating part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a recording medium cartridge holder and a recording and / or reproducing apparatus. More particularly, the present invention relates to a technique for preventing a recording medium cartridge from being erroneously inserted by a simple mechanism, that is, preventing the recording medium cartridge from being inserted into a recording medium cartridge holder in a direction other than a proper orientation.

[0002]

2. Description of the Related Art There is a recording medium cartridge in which a recording medium is housed in a flat, rectangular cartridge case having a long side and a short side in a planar shape and is inserted into a cartridge holder from the long side.

In a recording and / or reproducing apparatus using the above-mentioned recording medium cartridge, the recording medium cartridge is inserted into a recording medium cartridge holder holding the recording medium cartridge in a direction other than the normal direction, that is, the recording is performed. It is necessary to prevent erroneous insertion of the media cartridge.

[0004]

In a conventional recording and / or reproducing apparatus, there are various mechanisms for preventing a recording medium cartridge from being inserted into a cartridge holder in an upside down or upside down direction. However, no effective means for preventing insertion from the short side has been proposed, and the proposed means has a complicated mechanism and is not practical. .

In view of the above, the present invention is directed to a regular recording medium cartridge which is formed by storing a recording medium in a flat cartridge case having a rectangular shape having a long side and a short side and having a long side and inserted into the cartridge holder from the long side. It is an object of the present invention to reliably prevent insertion in any direction other than the above direction with a simple mechanism.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided a recording medium cartridge holder and a recording and / or reproducing apparatus, wherein a main support portion, a standby position and a predetermined retraction with respect to the main support portion are provided. A transport unit for movably supporting the recording medium cartridge held at the standby position and retracting the recording medium cartridge to a predetermined retracted position, a lock unit for locking the transport unit at the standby position, and a normal orientation of the recording medium cartridge. And an insertion restricting portion for preventing passage in the direction described above, wherein the lock portion is configured to release the lock on the transport portion by a recording medium cartridge passing through the insertion restricting portion.

Therefore, in the recording medium cartridge holder and the recording and / or reproducing apparatus according to the present invention, the lock to the transport section cannot be released unless the recording medium cartridge passes through the insertion regulating section. If it is inserted, it cannot pass through the insertion restricting portion unless it is in a proper orientation, and erroneous insertion when inserted from the long side is reliably prevented. Also, when the insertion is performed from the short side, even though the insertion restriction may be inserted deeper than the position where the insertion restriction is formed, the insertion does not pass through the insertion restriction. The lock is not released, and the insertion from the short side is reliably prevented. And the structure for that is
This is as simple as arranging the lock portion at a position where the lock is released by the recording medium cartridge passing through the insertion restricting portion.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0009] In the illustrated embodiment, the present invention is described.
The present invention is applied to a disk recording / reproducing apparatus using a recording medium cartridge in which a magneto-optical disk is rotatably housed in a flat cartridge case.

First, a recording medium cartridge used in the embodiment, that is, a magneto-optical disk cartridge (hereinafter, referred to as a "disk cartridge") will be described with reference to FIGS.

The disk cartridge 1 has a flat and nearly square cartridge case 2. The cartridge case 2 is formed such that the length in the front-back direction AB is slightly shorter than the length in the other direction, ie, the left-right direction CD. An insertion port 3 is formed in the center of the lower surface of the cartridge case 2. An access hole 4 for the laser light of the optical pickup to access is formed in a portion of the lower surface of the insertion port 3 on the side of the arrow D in the figure, and a recording magnetic head is provided at a position corresponding to the access hole 4 on the upper surface. A head insertion port 5 to be inserted is formed.

When the shutter 6 is in the closed position shown in FIG.
Are provided movably between the open position shown in FIG. The shutter 6 has an upper cover 6a covering the head insertion opening 5, a lower cover 6b covering the access hole 4, and these covers 6a and 6b.
Section 6 for connecting the disc cartridge 1 at the side end of the disc cartridge 1
and c are integrally formed. An engagement hole 6d is formed in the intermediate portion 6c. The shutter 6 has the head insertion opening 5 and the access hole 4 covered by the two covering portions 6a and 6b at the closed position, and is locked at the closed position by a lock means (not shown).

A groove extending from the front end, that is, the end in the direction of arrow A in the figure to the rear end, that is, slightly before the end in the direction of arrow B in the figure, is provided on the side end surface of the cartridge case 2 in the direction of arrow D in the figure. 7 is formed, and a groove 8 is formed on the side end surface on the side of arrow C in the figure, extending from the front end to a position slightly closer to the front. The two grooves 7 and 8 are positioned so as to be offset slightly upward from the center in the vertical direction. Therefore, on both sides of the front end of the cartridge case 2,
The thickness of the portions 7a, 8a above the grooves 7, 8 is made thinner than the thickness of the lower portions 7b, 8b (see FIG. 1).

At the position near the front end on both side edges of the lower surface of the cartridge case 2, there are formed substantially semicircular cutouts 9, 9 which are open downward and laterally.

A disc-shaped core 11 made of a magnetic material is mounted in the cartridge case 2 so as to be rotatable, and the disc-shaped magneto-optical disc 10 is rotatably housed in the cartridge case 2. Is downwardly exposed from an insertion opening 3 formed in the center of the lower surface of the cartridge case 2. In the center of the core 11, a center hole 11a is provided.
Are formed. A circular fitting recess 11b is formed on the lower surface of the core 11.

Next, the disk recording / reproducing apparatus 100 will be described with reference to a plan view of FIG. 3, a left side view of FIG. 4, and a right side view of FIG. Also, regarding the cartridge holder 120, the plan view of FIG. 6, the bottom view of FIG. 7, the rear view of FIG.
This will be described with reference to the sectional view of FIG. Further, the main support 130 will be described with reference to a plan view of FIG. 10 and a bottom view of FIG. Hereinafter, the terms left, right, front, and rear in the description are directions based on a plan view.

Using the above-described disk cartridge 1, a magneto-optical disk 9 (for example, a mini disk (trademark))
A disk recording / reproducing apparatus 100 for recording and reproducing signals to and from a computer includes a base chassis 110, and required members are disposed or supported on the base chassis 110.

A cartridge holder 120 is supported on the upper surface of the base chassis 110 so as to be vertically movable. The cartridge holder 120 includes, as main components, a main support 130 having a rectangular shape slightly longer in the front-rear direction, that is, in a direction indicated by an arrow EF in the drawing, a coupling member 140 attached to the main support 130, and a transport slider 150. It is formed.

The main support 130 is made of a synthetic resin, and as can be seen in FIGS.
That is, a large opening 131 is formed in a portion excluding a portion on the arrow F side in the drawing. And the opening 1
A protrusion 131a is formed on the right side of 31, that is, at a substantially middle position in a vertical direction of a front end portion of the side edge on the arrow H side in the drawing, that is, a portion excluding an end portion on the arrow E side in the drawing. ing. Further, the sliding groove 13 extends from the left side of the main support member 130, that is, from a position slightly rearward from the center in the front-rear direction of the side edge in the direction of arrow G in the figure to the front end.
2 is formed, and at the rear end of the slide groove 132, a lock portion 132a that is slightly depressed to the right is formed. A guide slit 1 extending substantially from the front end to the rear end at a portion between the opening 131 and the sliding groove 132 of the main support 130.
33 and 134 are formed. A ridge 133a is formed along the left edge of the left guide slit 133, and the right guide slit 1 of the guide slit 133 is formed.
Protrusions 134a, 134a are formed along the left and right side edges of 34. Further, a rectangular arrangement hole 130b which is long in the front-rear direction is formed at the left rear end of the main support 130.

Main support 13 of cartridge holder 120
A shutter opening / closing member 160 made of a leaf spring material is fixed to the outer side surface of the right side wall 130a (see FIG. 5). The shutter opening / closing member 160 has a long shape in the front-rear direction, that is, the direction of the arrow EF in the figure, and has a shutter opening piece 161 protruding from a substantially middle portion to the left (see FIG. 7). Further, a shutter closing piece 162 protrudes leftward from the rear end of the shutter opening / closing member 160 (see FIG. 11). The shutter opening piece 161 has a planar shape and a rectangular shape that is long in the front-rear direction, and the front edge of the left edge is the inclined edge 1 facing the left front.
61a. The left edge of the shutter release piece 162 is inclined at both the front end 162a and the rear end 162b, and the inclination of the inclined edge 162a at the front end is steeper than the inclination of the inclined edge 162b at the rear end. Has become. Then, the shutter opening piece 161 and the shutter closing piece 1
In both cases, the right side wall 13 is inserted through an insertion hole formed in the right side wall 130a of the main support 130 of the cartridge holder 120.
0a. The shutter opening / closing member 160 is fixed to the right side wall 130a by screws on the front and rear of the portion where the shutter opening piece 161 is formed, whereby the shutter opening piece 161 is immovable left and right. And although the shutter closing piece 162 normally protrudes inside the right side wall 130a,
When pushed from the left, the rear end of the shutter opening / closing member 160 is resiliently bent so that it can move to the right.

As shown in FIG. 10, a connection hole 135 is formed at a position near the rear end of the main support 130 along the left edge of the opening 131. Further, the sliding pins 136 and 136 are located slightly behind the middle of the left and right side surfaces in the front-rear direction, that is, at positions closer to the arrow F direction in the figure.
Is protruded outward. Further, the main support 1
A connecting piece 137 is provided at a substantially central portion of the front end of the front part 30 in the left-right direction to protrude forward.

Further, support surface portions 138 and 139 project from the lower edges of the rear ends of the left and right side surfaces of the main support 130 of the cartridge holder 120 so as to approach each other.

Next, the connecting member 140 will be described with reference to the plan view of FIG. 12 and the bottom view of FIG.

The connecting member 140 is formed by bending a sheet metal material. As can be seen from FIGS. 12 and 13, the connecting member 140 has a plate-shaped main portion 1 that is long in the left-right direction.
41 and supported pieces 142 and 143 projecting substantially downward from the left and right side edges of the main portion 141 are integrally formed.
Protrusions 142a, 143a protruding from the rear edges of the lower end portions of the supported pieces 142, 143 toward each other are formed. Further, supported pins 142b and 143b are provided on the right side of the lower end of the left supported piece 142 and the right side of the lower end of the right supported piece 143, respectively. Further, a side portion 144 protrudes downward from the front end of the left side edge of the main portion 141, and a regulating piece 144 a protrudes rightward from a lower end edge of the side portion 144. A spring hook 144b protrudes leftward from the upper end.

Two engaging pieces 145 and 146 are provided to protrude forward at substantially the center of the front edge of the main portion 141 of the connecting member 140 in the left-right direction. The right engagement piece 146 once protrudes downward and then projects forward to form an approximately L-shape when viewed from the right. When viewed from the side, these two engagement pieces 145 and 146 are vertically separated. Looks like they are facing each other.

An arrangement opening 147 is formed at the left end of the main part 141 of the connecting member 140, and a lock member 170 is arranged in the arrangement opening 147. As shown in FIG. 9, the lock member 170 is formed of a synthetic resin, and includes a concave base 171 opened rearward and a claw piece 172 projecting forward from the front end of the base 171. Is formed. A lock claw 173 protrudes downward from the front end of the claw piece 172. The lower end surface 173 of the lock claw 173
“a” is an inclined surface slightly inclined upward and backward. The supported pins 1 are provided on both sides of the base 171 near the rear end.
71a and 171a are protruded. Supported Pin 171
a, 171a are support pieces 1 projecting downward from both sides of the rear end of the arrangement opening 147 of the main part 141 of the connecting member 140.
48 and 148 are rotatably engaged. by this,
The lock member 170 is supported by the connecting member 140 so as to be rotatable in a direction in which the front end moves substantially vertically. And
The downward rotation of the lock member 170 is regulated by the rear end of the base 171 abutting on the lower surface of the main portion 141 of the connecting member 140, and the upward rotation is directed rightward to the front end of the base 171. The protruding regulating pin 171b is connected to the connecting member 14.
It is regulated by abutting on the lower surface of the base 141 of the “0”.

The coil portion 174a of the torsion coil spring 174 is externally fitted to a spring hook 147a projecting leftward from the center of the right edge of the arrangement opening 147 of the connecting member 140 to a position slightly closer to the front end. , One arm 1 extending forward
74b is elastically contacted with the upper surface of the main portion 141 of the connecting member 140, and the other arm 174c extending rearward is
The base portion 171 is elastically contacted with the upper surface of the front end portion. As a result, the lock member 170 is urged downward.

The connecting member 140 is connected to the main support 1.
30. That is, the restricting piece 144a formed on the left side of the connecting member 140 is located below the left side of the main support 130, and the right engaging piece 146 of the connecting member 140 is formed.
Is engaged with the connection hole 135 of the main support 130, and the left engagement piece 134 is in contact with the left opening edge of the connection hole 135 of the main support 130 from above. In this state,
The lock member 170 supported by the connecting member 140 faces the arrangement hole 130b formed at the left rear end of the main support 130 from above.

Further, the transport slider 150 is supported on the main support 130 so as to be movable in the front-rear direction. The transport slider 150 is formed of a synthetic resin, and is shown in FIGS.
As can be seen from FIG.
It has an upper surface 151 that is long in the H direction, and a front surface 152 protrudes downward from the front edge of the upper surface 151. A ridge 1 extending in the front-rear direction is provided on the left upper surface of the upper surface portion 151
53, 154 are formed side by side. On the upper surface of the rear end of the left ridge 153, the engagement sliding piece 1 protruding leftward.
53a are formed, and engagement sliding pieces 154a and 154a projecting to the left and right, respectively, are formed on the upper surface of the front end of the right ridge 154.
Are formed. The ridge 153 is slidably engaged with a guide slit 133 formed in the main support 130, and a slidable engagement piece 153 a is formed on a left side surface of the slide slit 133. The ridge 133a is slidably engaged with the upper surface of the ridge 133a.
0 is slidably engaged with the guide slit 134, and
The sliding engagement pieces 154a and 154a are
4 are slidably engaged with the upper surfaces of the ridges 134a formed on both left and right side surfaces of the ridge 4, respectively. Further, a sliding engagement piece 15 protruding rightward is provided on the upper surface of the right end portion of the upper surface portion 151.
1a is formed, and the sliding engagement piece 151a is formed with a ridge 131 formed on the right side of the opening 131 of the main support 130.
a is slidably engaged with the upper surface of a. Thus, the transport slider 150 is movably supported on the lower surface of the main support 130 in the front-rear direction, that is, in the direction of the arrow EF in the figure.

A support piece 155 projecting rearward is formed at a position on the right side of the lower edge of the front surface 152 of the transport slider 150. A projection 156 projecting rearward is formed at the left end of the upper surface 151, and a locked hole 156a is formed at the center of the projection 156, and a rear edge 156a 'of the locking hole 156a is formed. Is an inclined surface facing forward and upward. In addition, the support piece 156 extends from the left edge of the protrusion 156.
b protrudes downward, and an insertion restricting piece 156c protrudes rightward from the lower edge of the support piece 156b (see FIG. 9). The insertion restricting piece 156c has a small plate shape whose surface extends in the horizontal direction, faces the locked hole 156a, and the disc cartridge 1 is inserted into the cartridge holder 120 in a regular direction. It is formed at a position corresponding to the height of the left groove 8 at the time.

Further, the front portion 15 of the transport slider 150
2 is cut out at the left end 152a.
A connecting piece 157 protrudes forward from a lower end near the position 2a, and an engaging protrusion 157a protrudes leftward from a front end of the connecting piece 157.

A lock lever 180 is rotatably supported on the lower surface of the left end of the upper surface 151 of the transport slider 150. The lock lever 180 has three arm pieces 181, 182, and 183 that extend in a substantially right-angled positional relationship with each other. The lock lever 180 is vertically attached to an intermediate portion where the bases of these three arm pieces 181, 182, and 183 are connected. A supported hole 184 is formed. A lock pin 181a protruding upward is formed at the tip of the first arm piece 181 extending substantially forward from the intermediate portion, and a second pin extending substantially rightward from the intermediate portion.
The arm piece 182 is an acting piece, and a lock projection 183a projecting leftward from the upper end thereof and a lock projecting rightward from the lower end thereof are provided at the distal end of the third arm piece 183 extending substantially rearward from the intermediate portion. A mating projection 183b is formed. And
In such a lock lever 180, a support shaft 158 protruding downward from the left end front end of the upper surface portion 151 of the transport slider 150 is inserted into the supported hole 184, and thereby,
A lock lever 180 is rotatably supported by the transport slider 150. The lock lever 180 is urged by a spring (not shown) in a clockwise direction as viewed from above, that is, in the direction of the arrow CW in the figure.

A click member 190 made of a leaf spring material is fixed to the right end of the front surface 152 of the transport slider 150. The click member 190 has a supported piece 191 supported by the front face 152 and a lower surface 192 projecting rearward from a lower edge of the supported piece 191.
Reference numeral 2 denotes a substantially L-shaped rear end portion projecting rightward, and an engagement projection 193 projecting upward and projecting upward is formed at a portion of the lower surface portion 192 projecting rightward. The engaging projections are formed on the rear surface portion 192 by forming two slits extending in the front-rear direction side by side, and projecting a portion between the two slits upward.

Then, with the transport slider 150 positioned at the rear end of the moving range, that is, at the standby position,
The lock claw 173 of the lock member 170 supported by the connecting member 140 is engaged with the locked hole 156a of the transport slider 150. Also, the lock projection 18 of the lock lever 180
3a engages with an engaging hole 130d formed in the rear end of the left side wall 130c of the main support 130 of the cartridge holder 120 (see FIG. 18). Further, the lock lever 180
Are engaged with a lock portion 132a formed at the rear end of the slide groove 132 of the main support 130 of the cartridge holder 120. As a result, the transport slider 150 is locked at the rear end of the moving range, that is, at the standby position.

Next, the cartridge holder 120 described above is used.
The procedure for inserting the disk cartridge 1 into the disk drive will be described.

First, the disk cartridge 1 is oriented normally, that is, the upper surface of the cartridge case 2 faces upward, and the front end, that is, the end in the direction of arrow A in FIG. A case where the insertion is performed with the end facing will be described.

When the disk cartridge 1 is in the correct orientation,
As it is inserted above the support surface portions 138 and 139 of the cartridge holder 120, the insertion restricting piece 156c provided on the transport slider 150 is relatively inserted into the groove 8 on the left side of the disk cartridge 1. Thus, the disk cartridge 1 is inserted toward the transport slider 150. When the disk cartridge 1 is further inserted into the cartridge holder 120, the lower end surface (inclined surface) 173a of the lock claw 173 of the lock member 170 is pressed by the front end. As a result, the lock member 170 pivots upward against the biasing force of the torsion coil spring 174, and the inclined surface 173a of the lock claw 173 becomes inclined at the rear end of the locked hole 156a of the transport slider 150.
56a 'in front and back (see FIGS. 16 and 1).
7). Therefore, when the transport slider 150 attempts to move forward from this state, the inclined surface 1
73a slides relatively upward on the inclined surface 156a 'of the locked hole 156a.
At the stage shown in FIG. 7, the transport slider 1 by the lock claw 173
The lock to 50 has been released. Then, the disc cartridge 1 is further moved into the cartridge holder 12.
0, the front end face of the lock lever 180
Of the second arm piece 182 is pressed. by this,
The lock lever 180 rotates counterclockwise when viewed from above, that is, in the direction of the arrow CCW in the figure, against the urging force of a spring (not shown).
1 is disengaged to the left from a lock portion 132a formed at the rear end of the slide groove 132 of the main support 130, and a lock projection provided at the tip of the third arm piece 183. 183a is the left side portion 13 of the main support 130.
It is disengaged rightward from the engaging hole 130d formed at 0c. As a result, all locks of the transport slider 150 to the standby position are released (see FIG. 18). In addition, the third
The engagement projection 183b formed at the tip of the arm piece 183 is engaged with the notch 9 formed below the left side edge of the disc cartridge 1, and is simultaneously bent downward by the front end of the disc cartridge 1. The lower surface portion 192 of the click member 190 that has been moved back upwards, and its engagement protrusion 193 engages with the notch 9 formed below the right edge of the disc cartridge 1. Thus, the disk cartridge 1 is held by the transport slider 150.

When the disc cartridge is further pushed into the cartridge holder 120 while being held by the transport slider 150, the transport slider 150 is moved forward by the force. Then, the transport slider 150
Is slightly advanced, a sensor (not shown) detects this, and a mode forming mechanism described later is driven.
The transport slider 150 moves to a predetermined front retracted position, and the disk cartridge 1 is transported to a predetermined retracted position by the transport slider 150 (see FIG. 19). This will be described in detail later.

Next, the case where the disk cartridge 1 is inserted in the cartridge holder 120 in the wrong direction will be described. When the disc cartridge 1 is inserted in the wrong direction, when the disc cartridge 1 is inserted in the reverse direction, when the disc cartridge 1 is inserted in the upside down direction, the side portion, that is, the short side is directed forward. It is considered that it is inserted in the orientation.

When the disk cartridge 1 is inserted in the reverse direction, the grooves 7 and 8 do not reach the rear end, so that the rear end surface of the disk cartridge 1 comes into contact with the insertion restricting piece 156c of the cartridge holder 120. , Cannot go deeper into the cartridge holder 120 (see FIGS. 20 and 21).

When the disk cartridge 1 is inserted upside down, the vertical position of the groove 7 on the D side of the disk cartridge 1 is set in the cartridge holder 120.
Is different from the position of the insertion restricting piece 156c in the height direction, so that a portion 7b below the groove 7 in the D-side end of the front end surface of the disk cartridge 1, specifically, a tapered portion following the lower portion of the groove 7 The insertion regulating piece 156c abuts on 7b ', and the disc cartridge 1 cannot enter the cartridge holder 120 any more (see FIGS. 22 and 23).

Finally, a case where the disk cartridge 1 is inserted with the side surface, that is, the short side facing forward, and the disk cartridge 1 is inserted avoiding the position of the insertion restricting piece 156c. In this case, the insertion restricting piece 156c is inserted farther from the position where it is provided, and presses the second arm piece 182 of the lock lever 180 backward, whereby the lock lever is viewed in a counterclockwise direction when viewed from above, that is, in the drawing. The lock pin 181a provided on the first arm piece 181 is rotated in the
24 to the left from the lock portion 132a of FIG.
reference). However, the portion where the disc cartridge 1 is located at the insertion regulating piece 156c, that is, the lock member 1
Since the lock pawl 173 of the lock member 170 does not pass through the portion where the lock pawl 173 is located, the state in which the lock pawl 173 of the lock member 170 is engaged with the locked hole 156 a of the transport slider 150 is not released. Cannot move forward.

As described above, the disc cartridge 1 can be inserted into the cartridge holder 120 only in a proper orientation.
Not inserted into This restriction is achieved by providing an insertion restricting piece 156c on the transport slider 150 and by setting a locking means (lock member 170) for locking the transport slider 150 at the standby position at a position vertically opposed to the insertion restricting piece 156c. The disk cartridge 1 is arranged so that the lock by the locking means is released by the disk cartridge 1 that clears the restriction by the insertion restriction piece 156c and passes through the relevant portion.
Erroneous insertion can be reliably prevented with a simple configuration.

Next, the apparatus main body will be described in detail with reference to FIGS.

The above-described cartridge holder 120 is supported by the base chassis 110 so as to be vertically movable.

The base chassis 110 is formed of a synthetic resin, and is provided with support pieces 111, 111 protruding upward from both left and right end portions at the rear end.
Support holes 111a, 111a are formed in 1, 111, respectively. Further, guide columns 112, 112 are provided to project upward at positions slightly rearward from the intermediate portions in the front-rear direction of the left and right side edges of the base chassis 110, and the guide columns 112, 112 face each other. Guide grooves 112a, 112a extending in the vertical direction are formed on the surface. Further, the engaging piece 11 is located at a position slightly to the right of the middle portion of the front end of the base chassis 110 in the left-right direction.
3 protrudes upward, and the engaging piece 113 is formed with a vertically long sliding engagement hole 113a.
reference). Still further, on the left side of the left support piece 111, a drop-off prevention piece 114 is provided upright.

The cartridge holder 120 is connected to the connecting member 140 in an oblique posture with the front end positioned slightly above.
The supported pins 142b and 143b of the base chassis 11
0 support pieces 111, 111 support holes 111 a, 111 a
, And is rotated so that the front end moves downward. Then, the sliding pins 136, 136 of the cartridge holder 120 are inserted into the guide grooves 112a, 1a formed in the guide columns 112, 112 of the base chassis 110.
12a is slidably engaged in the vertical direction. Further, the connecting piece 1 formed at the front end of the cartridge holder 120
37 is slidably engaged with the sliding engagement hole 113a of the engagement piece 113 formed at the front end of the base chassis 110 in a vertical direction. The spring hook 144b of the connecting member 140 of the cartridge holder 120 and the base chassis 11
0, a tension coil spring 116 is stretched between a spring hook 115 protruding from the left side surface of the rear end portion, whereby the connecting member 140 is attached so as to rotate in the direction in which the front end portion moves downward. Be inspired.

As described above, the cartridge holder 1
Reference numeral 20 is supported by the base chassis 110 so as to be vertically movable. Then, as described above, the cartridge holder 1
When the base member 110 is supported by the base chassis 110, the supported piece 1 on the left side of the connecting member 140 of the cartridge holder 120
42 is located between the support piece 111 on the left side of the base chassis 110 and the stopper piece 114, and
40 is restricted from moving to the left, so that the supported pin 1
42b and 143b are support pieces 1 of the base chassis 110
It is possible to prevent the support holes 111a and 111a of the support 111 and 111 from slipping leftward.

On the base chassis 110, a mode forming mechanism, a disk rotation driving mechanism, an optical pickup mechanism, an overwrite head mechanism, and the like are configured, and an apparatus main body 200 of the disk recording / reproducing apparatus 100 is configured.

The mode forming mechanism has two sliders, a mode slider 210 and a loading slider 22.
0.

The mode slider 210 is formed of a synthetic resin, and as can be seen from FIGS. 30 and 31, the mode slider 210 is disposed on the upper surface of the base chassis 110 in the front-rear direction, that is, the arrow EF in the figure.
It is movably supported in the direction. Mode slider 21
Reference numeral 0 denotes a rack forming portion 211 having a plate shape that is substantially long in the front-back direction.
To the right from the front end of the rack forming portion 211, that is,
The head drive unit 212 protrudes in the direction of arrow H in the figure. The rack teeth 213 are formed from a middle portion in the front-rear direction to a portion near the front end of the right edge of the rack forming portion 211. An engagement notch 214 extending toward the right front is formed at a position slightly forward from a middle part of the left edge of the rack forming part 211 in the front-rear direction. A low side wall 211a is erected at a portion of the left side edge outside the portion where the engagement notch 214 is formed, and the holding piece 2 is provided outside the side walls 211a at both front and rear ends.
11b and 211b are protruded leftward. A guide groove 215 extending in the front-rear direction is formed on the upper surface of the rack forming portion 211 at a position along the right edge. Further, a cam portion 216 is formed at a front end portion of the side wall 211a of the rack forming portion 211. An upper edge of the cam portion 216 has a rear end portion 216a extending horizontally at the highest position and a rear end portion 216a.
6a and an inclined portion 216b inclined forward and downward.

The head driver 21 of the mode slider 210
2, a cam portion 217 extending in the front-rear direction is formed along a right edge of the cam portion 217. An upper edge of the cam portion 217 has a high portion 217a extending horizontally at a high position at a rear end and a low portion extending horizontally at a low position at a front end. It comprises a portion 217b and a downwardly inclined portion 217c connecting these two portions. Further, the head driving unit 212 is provided with each part 2 on the upper edge of the cam part 217.
Auxiliary pieces 217d are formed on the upper sides of 17a, 217b and 217c so as to be slightly spaced from each other.
As a result, a cam groove conforming to the shape of the upper edge of the cam portion 217 is formed. Further, a guided slit 212a extending in the front-rear direction is formed in the head driving section 212.

A slit 117 extending in the front-rear direction is formed at a position along the left edge of the base chassis 110 (see FIG. 28). The front end of the lock piece 230 is rotatably supported at a position along the right edge near the front end of the slit 117, and a lock pin 231 is protruded from the rear end of the lock piece 230 (FIG. 44 and FIG. 45).

The mode slider 210 is slidably supported on the upper surface of the base chassis 110 in the front-rear direction. The guided slit 2 of the mode slider 210
A guide projection 110a erected on the base chassis 110 is slidably engaged with 12a. In addition, the auxiliary member 240 is fixed along the left edge of the base chassis 110,
A step 241 is formed at the lower end of the right side surface of the auxiliary member 240, and the pressed piece 211 b of the mode slider 210 is provided between the step 241 and the upper surface of the base chassis 110.
211b is slidably engaged (see FIG. 29). The left guide column 112 and the spring hook 11 described above are used.
5 is formed on the auxiliary member 240.

The loading slider 220 includes a rack forming section 250 and a limiter section 260.

The rack forming portion 250 is formed of a synthetic resin having good slipperiness, and has a substantially plate-like shape extending in the front-rear direction as can be seen from FIGS. Teeth 251 are formed. At a position near the left edge of the rack forming portion 250, a slit 252 opened at the rear end extends to near the middle in the front-rear direction, and a spring hook 253 protrudes from the rear end of the slit 252. In addition, two guide protrusions 254, 25 are separated from each other at a position near the right edge of the rack forming portion 250.
4 is formed, and a shallow groove 255 extending in the front-rear direction is formed at the front end of a portion shifted leftward from the portion where the guide projections 254 and 254 are formed. Further, a protrusion 256 protruding downward is formed on the left edge of the rack forming portion 250, and a cutout 256a is formed in the protrusion 256 from an intermediate position in a substantially front-rear direction to a position near a rear end. I have. An inclined surface 256b facing left rear is formed at the rear end of the ridge 256. Furthermore, three sliding protrusions 257, 25 are spaced apart in front and rear at positions on the lower surface of the rack forming portion 250 that are closer to the right edge.
7, 257 are projected.

The limiter 260 is formed of a synthetic resin, and has a plate shape that is substantially long in the front-rear direction, as can be seen from FIGS. 36 and 37. The length of the limiter 260 is slightly smaller than the length of the rack forming portion 250. And the width is smaller than the width of the rack forming portion 250 by the amount of the protrusion of the rack teeth 251. A slit 261 opened at the rear end extends to near the middle in the front-rear direction at a position close to the left edge of the limiter 260, and a spring hook piece is provided at a portion of the front end corresponding to the end where the slit 261 is extended. 262 are projected. Further, two guided slits 263 and 263 projecting in the front-rear direction are spaced apart from each other in the front-rear direction and protrude from the limiter 260 at a position close to the right edge. Further, a connecting post 264 is provided at an intermediate portion in the front-rear direction at a position along the right edge.
A connecting groove 264a is formed on the right side surface of the connecting column 264 so as to extend vertically and open at the upper end. Further, a protruding piece 265 projecting downward is formed at a substantially middle position in the front-rear direction of the left edge of the limiter 260. An elastic piece 266 extending in the front-rear direction is formed at a position between the inner end of the slit 261 of the limiter 260 and the spring hook 262. The elastic piece 266 is formed by forming a concave-shaped slit that opens forward and is long in the front-rear direction and is surrounded by the slit. The elastic piece 266 has a protrusion 266a on the lower surface at the front end thereof.
Are formed, and the protrusion 266a is
Projecting slightly downward from the lower surface of the.

The above-described limiter section 260 is superimposed on the rack forming section 250. That is, the guide projections 254 and 254 of the rack forming section 250 are slidably engaged with the guided slits 263 and 263 of the limiter section 260, and the guide projections 254 and 254 are guided by the guided slits 263 and 263.
From being trapped. The spring hook 253 of the rack forming section 250 is slidably engaged with the slit 261 of the limiter 260, and the protrusion 266a formed on the lower surface of the front end of the elastic piece 266 of the limiter 260 is formed by the rack forming section 25.
0 is slidably engaged with a shallow groove 255 formed on the upper surface of the rack forming section 250. Further, the protruding piece 265 of the limiter section 260 is movable in the front-rear direction into a notch 256a formed on the left edge of the rack forming section 250. Is located. And the rack forming part 2
A limiter spring (tensile coil spring) is stretched between the 50 spring hook piece 253 and the spring hook piece 262 of the limiter section 260. The rack forming section 250 and the limiter section 260 are coupled as described above, and the rack teeth 251 of the rack forming section 250 project leftward from the left edge of the limiter section 260 when viewed from above.

The rack forming section 250 and the limiter section 260 are attracted to each other by the limiter spring 267, and the spring hook 253 of the rack forming section 250 is moved to the limiter section 26.
When it comes into contact with the back end of the 0 slit 261, it comes to a stationary state. When a force in a direction against the biasing force of the limiter spring 267 is applied to the limiter unit 260, that is, when a forward force is applied to the limiter unit 260, the limiter unit 260 is moved to the rack forming unit 250.
, Ie, in the direction of arrow E in FIG.
Stops when the projection 266a of the rack contacting the front end of the shallow groove 255 of the rack forming section 250. As described above,
The loading slider 220 is formed.

The loading slider 220 formed as described above is overlaid on the mode slider 210 so as to be movable in the front-rear direction. That is, the sliding protrusions 257, 257, 257 formed on the lower surface of the rack forming portion 250 of the loading slider 220
10 is slidably engaged with the guide groove 215 formed on the upper surface of the upper surface 10. An eaves piece 243 formed to protrude leftward from an upper end edge of a side wall 242 protruding upward from a left edge of the auxiliary member 240 faces an upper surface of a left edge portion of the limiter section 260 of the loading slider 220. It is located so as to cover from above (see FIG. 29).
The loading slider 220 is prevented from falling off the mode slider 210.

As described above, in a state where the mode slider 210 and the loading slider 220 are stacked, the two rack teeth 213 and 251 are arranged so as to move on the same trajectory in a plan view. 2
20 are formed along the left side of the left edge of the rack forming portion 211 of the mode slider 210, and the cam portion 216 formed on the mode slider 210 is formed with a slit 252 of the loading slider 220. , 261 on the movement locus.

When both the mode slider 210 and the loading slider 220 are located at the rear end of the movement range, that is, at the initial position (see FIGS. 40 to 43), the rack teeth 213 and 251 are almost vertically overlapped. The rack teeth 25 of the loading slider 220
1 is longer than the rack teeth 213 of the mode slider 210, the front end of the rack teeth 251 of the loading slider 220 is the rack tooth 2 of the mode slider 210.
13 is located in front of the front end (see FIG. 43). Further, the cam portion 216 of the mode slider 210 is located in the slits 252 and 261 of the loading slider 220, and further, the lock pin 231 of the lock piece 230.
Engages with the engagement notch 214 of the mode slider 210,
The mode slider 210 is locked at the initial position. The protrusion 256 of the loading slider 220 is located on the left side of the opening of the engagement notch 214,
1 is prevented from coming out of the engagement notch 214.

The restricting piece 144a formed on the connecting member 140 of the cartridge holder 120 is placed on the front end 216a of the cam portion 216 of the mode slider 210 at the initial position. As a result, the cartridge holder 120 is located at the upper end of the movement range. Also, the cartridge holder 12
The engagement protrusion 157 a provided on the connection piece 157 of the transport slider 150 is engaged with a connection groove 264 a formed on the connection column 264 of the loading slider 220.

A disk rotation drive mechanism 270 is disposed substantially at the center of the base chassis 110. The disk rotation drive mechanism 270 includes a spindle motor 271 fixed to the base chassis 110 and a turntable 272 fixed to the upper end of the spindle shaft 271a of the spindle motor 271. A circular pedestal 272a sized to fit inside a circular fitting recess 11b formed on the lower surface of the core 11 of the magnetic disk 10 is formed on the upper surface of the pedestal 272a. A magnet 273 is fixed in a buried state.

Next, the apparatus body will be described in more detail with reference to FIGS.

An optical pickup mechanism 280 is disposed on the right side of the base chassis 110 where the disk rotation drive mechanism 270 is disposed. The optical pickup mechanism 280 includes an optical pickup device and a sled mechanism for moving the optical pickup device in the left-right direction, that is, the direction of arrow GH in the figure.

The optical pickup device 281 includes a slide base 282 on which other members and components other than the objective lens 283 are disposed. A guide shaft 284 extending in the left-right direction is disposed at a position slightly forward from a substantially middle portion of the upper surface of the base chassis 110 in the front-rear direction of the right half, and the front end of the slide base 282 is connected to the guide shaft 2.
84 slidably supported. Slide base 28
2, two sliding pieces 282a, 282a protruding rearward are formed on the rear end of the sliding piece.
Reference numerals 2a and 282a slidably engage in the left-right direction with the rear opening edge 118a formed at the rear end of the right half of the base chassis 110 sandwiched from above and below. A rack 282b is formed at the front end of the slide base 282.

The thread mechanism 285 is connected to the rack 28
The pinion gear 286 meshes with a pinion gear 286, a thread motor 287, and a transmission gear train 288 that transmits the rotation of the thread motor 287 to the pinion gear 286.

The mode chassis 210 and the loading slider 220 are further provided on the base chassis 110.
A loading drive unit 290 for moving is provided. The loading drive unit 290 includes a pinion gear 291 for moving the mode slider 210 and the loading slider 220, a drive motor 292, and a transmission gear train 293 for transmitting the rotation of the drive motor 292 to the pinion gear 291. The above pinion gear 2
Reference numeral 91 denotes a width capable of meshing with both the rack teeth 213 of the mode slider 210 and the rack teeth 251 of the loading slider 220, and slightly before the front end of the rack teeth 213 of the mode slider 210 at the initial position. The loading slider 220 is located at a position where it meshes with the front end of the rack teeth 251.

As described above, the disc cartridge 1
Is inserted into the cartridge holder 120 in a regular orientation,
The lock of the cartridge holder 120 to the standby position is released, and from there, the disc cartridge 1 is further moved.
Is pushed into the cartridge holder 120, and the transport slider 150 is pushed forward by the disc cartridge 1. When the transport slider 150 moves slightly forward from the standby position, it is detected by a sensor (not shown), the drive motor 292 of the loading drive unit 290 is driven in the loading direction, and the pinion gear 291 is transmitted via the transmission gear train 293. Rotate clockwise as viewed from above. When the transport slider 150 is pushed forward through the disk cartridge 1 and moves forward, the transport slider 150 and the loading slider 220 are connected via the connecting piece 157 of the transport slider 150 and the connecting column 264 of the loading slider 220. Therefore, the loading slider 220 receives a forward moving force. Here, the loading slider 22
0 is formed in a double structure by the rack forming section 250 and the limiter section 260, and the rack forming section 250 and the limiter section 260 are connected by the limiter spring 267.
When the transport slider 150 moves forward, the limiter spring 267 is extended and only the limiter 260 moves forward, thereby preventing the pinion gear 291 from being forcibly rotated via the rack teeth 251.

When the pinion gear 291 rotates clockwise, the pinion gear 291 and the rack teeth 25
The loading slider 220 meshed with 1 is moved forward, that is, in the direction of arrow E in the figure. When the loading slider 220 moves forward, the transport slider 150 connected to the loading slider 220 moves forward. Then, the transport slider 150
Is moved forward, the engagement protrusions 183b and 193 provided on the transport slider 150 are
The disk cartridge 1 held by the transport slider 150 from the left and right by engaging with the cartridge 9 is transported by the transport slider 150 toward the back of the cartridge holder 120, that is, forward. While the disc cartridge 1 is being conveyed toward the inside of the cartridge holder 120, the shutter opening / closing member 160
Shutter release piece 161 enters the groove 7 of the disc cartridge 1 to release the lock of the shutter 6 to the closing position, and the rear inclined edge of the shutter closing piece 162 is located at the intermediate portion 6c of the shutter 6. After riding on the right side, the shutter closing piece 162 is engaged with the engaging hole 6d formed in the intermediate portion 6c of the shutter 6. When the disc cartridge 1 is further conveyed from there, the shutter release piece 161 relatively presses the front end of the intermediate portion 6c of the shutter 6 backward, so that the shutter 6 is moved toward the release position. Go.

Immediately before the transport slider 150 reaches the innermost retracted position, the loading slider 220
Is in contact with the rear end of the pressed piece 211b on the front side of the mode slider 210, and the projection 256 of the loading slider 220 has moved forward from the position where the engagement notch 214 of the mode slider 210 is closed. (See FIGS. 44 and 45). Therefore, while the transport slider 150 moves from there to the retracted position, the mode slider 210 is pulled forward by the loading slider 220 via the protruding piece 265 of the loading slider 220 and the pressed piece 211b on the front side of the mode slider 210, The lock pin 231 of the lock piece 230 is engaged with the notch 2
The rack teeth 213 are moved forward while being discharged from the outside, and the rack teeth 213 of the pinion gear 29 of the loading drive unit 290 are moved.
This is the state immediately before meshing with No. 1 (see FIG. 45). on the other hand,
When the transport slider 150 reaches the retracted position (see FIG. 19), the rack teeth 251 of the loading slider 220 move forward of the pinion gear 291, and the engagement with the pinion gear 291 is released. Movement stops.

Next, only the mode slider 210 moves forward, so that the disc cartridge 1
Is completed. The loading completion will be described with reference to FIGS. When the mode slider 210 moves forward, the cam portion 216 formed integrally with the mode slider 210 moves forward, and the connecting member 14 of the cartridge holder 120 moves.
The position where the regulating piece 144a formed at zero is placed is located at a substantially middle portion of the inclined portion 216b from the rear end portion 216a of the cam portion 216 (see FIG. 47). As a result, the connecting member 140 is moved by the urging force of the extension coil spring 116,
The front end pivots about the supported pins 142b and 143b supported by the pivot 111 so that the front end thereof is lowered. Then, the main support 130 of the cartridge holder 120 is pressed downward by the front end of the main portion 141 of the connecting member 140 whose upper surface rotates downward, whereby the main support 130 is moved to the left and right sliding pins 136. , 136 are guide columns 112 of the base chassis 110, guide grooves 112 of the 112
a, 112a, and the connecting piece 137 at the front end is formed by the engaging piece 11 formed at the front end of the base chassis 110.
3 is guided by the sliding engagement hole 113a and descends. Accordingly, the disk cartridge 1 supported by the cartridge holder 120 also descends together with the main support 130 (see FIG. 47), and the turntable 2 of the disk rotation drive mechanism 270
The insertion slot 3 of the disk cartridge 1 in which the 72 descends
, The base portion 272a of the turntable 272 fits into the fitting recess 11b of the core 11 attached to the center of the magneto-optical disk 10, and the base portion 272a. A chucking magnet 273 embedded in the upper surface of the core 272a adsorbs the core 11,
As a result, the magneto-optical disk 10 is
72.

As described above, loading, that is, pulling of the disk cartridge 1 into the apparatus main body and mounting of the magneto-optical disk 10 on the disk rotation drive mechanism 270 are completed.

The mode slider 210 and the loading slider 220 in the state where the loading is completed
Are called loading completion positions.

When a signal is reproduced from the magneto-optical disk 10, the spindle motor 271 is driven to rotate the magneto-optical disk 1 immediately after the loading is completed as described above, and the optical pickup device is used. The laser beam irradiates the signal recording surface of the magneto-optical disk 10 and the return light thereof is detected while the 281 moves in the left-right direction, and the signal on the magneto-optical disk 10 is reproduced.

Next, the operation from the loading completion position to the recording position will be described with reference to FIGS. 38, 39 and FIGS. 50 to 55.

When a signal is recorded on the magneto-optical disk 10, the mode slider 210 is moved further forward, and the overwrite magnetic head enters the cartridge case 2 from the head insertion slot 5, and The back side (upper surface) of the portion facing the ten objective lenses 283 is brought into contact with or in close proximity.

Next, the overwrite head mechanism 300 will be described in detail with reference to FIGS. 38 and 39.

The overwrite head mechanism 300 is provided on the base chassis 110. The overwrite head mechanism 300 has a connecting base 310. The connecting base 310 is made of a synthetic resin, has a plate shape extending substantially in the up-down direction, and has a lower end portion provided with the optical pickup device 28.
A connecting portion 311 fixed to the front end of the first slide base 282, a head supporting portion 312 protruding rearward from the upper end of the connecting portion 311, and a regulating arm 313 protruding rearward from a right end of the upper end of the connecting portion 311. It is formed integrally. A contact portion 313a protruding leftward at the rear end of the regulating arm 313.
Are formed.

The head support 312 of the connecting base 310
The magnetic head device 320 is supported. The magnetic head device 320 includes a head support arm 322 that supports the magnetic head 321 on the distal end side, and an arm support plate 323 that supports the lower side of the head support arm 322. The head support arm 322 is formed by punching a thin metal plate having elasticity such as phosphor bronze, and has a base 322a, an arm 322b projecting rearward from the base 322a, and a base 32.
The arm 3 protrudes rearward from the left end of the arm 2a.
The base portion 322a is fixed to the upper surface of the head support portion 312 of the connection base 310, and the arm portion 322b and the spring portion 322c project rearward and downward obliquely. The magnetic head 321 is supported at the tip of the arm 322b.

The arm support plate 323 is formed of synthetic resin so as to be long in the front-rear direction, and a portion near the front end is rotatably supported in the vertical direction on the left side surface of the distal end of the head support portion 312 of the connecting base. A support piece 323a projecting rightward is formed at the rear end of the arm support plate 323, and the support piece 323a supports the lower surface of the distal end of the arm 322b of the head support arm 322. From the upper surface of the rotatably supported portion of the arm support plate 323, a pressing piece 323b is provided to protrude rightward.
23b presses the base 322a of the head support arm 322 from above. The spring contact piece 3 is located at a position slightly behind the rotatably supported portion of the arm support plate 323.
23c is formed, and the tip of the resilient portion 322c of the head support arm 322 is elastically contacted with the upper surface of the spring contact piece 323c. Therefore, the arm support plate 323 is configured such that the spring portion 322c of the head support arm 322 is
The rear end of the head support arm 322 is biased to move downward by elastic contact with the support piece 323a and the arm portion 322b of the head support arm 322 with the support piece 323a. At the front end of the arm support plate 323, an L-shaped operated piece 323d as viewed from the right is protruded downward.

A head shift plate 330 is disposed on a portion of the base chassis 110 that is offset to the right of the front end portion so as to be rotatable in the vertical direction. The head shift plate 330 is made of a synthetic resin, has a substantially long plate shape in the left-right direction, and supported pieces 331 and 331 protruding forward from both left and right ends can be vertically rotated on the front end of the base chassis 110. It is supported by. An operation pin 332 is provided to project leftward from the left edge of the head shift plate 330.
32 denotes a cam portion 217 formed on the mode slider 210.
Is placed on the upper edge. In addition, immediately above the action pin 332 placed on the upper edge of the cam portion 217, an auxiliary piece 217d is provided.
Is located so that the action pin 332 does not come off the upper edge of the cam portion 217. At the rear end of the head shift plate 330, a regulating piece 333 having a substantially inverted L-shape when viewed from the right is projected upward, and the magnetic head device is provided on the lower surface of the upper side 333a of the regulating piece 333. 32
The operated piece 323d of the 0 arm support plate 323 is in a state of elastic contact.

While the mode slider 210 moves from the initial position to the loading completion position,
The operation pin 332 of the head shift plate 330 is connected to the lower portion 217 of the cam portion 217 formed on the mode slider 210.
b, so that the head shift plate 330 is in a state where the rear end has moved downward,
The arm support plate 323 in which the operated piece 323d is pressed downward by the restriction piece 333 of the head shift plate 330.
The arm portion 322 of the head support arm 322 has its rear end moved upward, and the lower surface of the rear end portion is supported by the support piece 323a of the arm support plate 323.
The rear end of the head support arm 322 is moved upward, so that the magnetic head 321 supported by the rear end of the arm portion 322b of the head support arm 322 is mounted on the magneto-optical disk 1.
Zero is at a position that does not touch or approach.

When recording a signal on the magneto-optical disk 10, the mode slider 210 is moved further forward from the loading completion position. As the mode slider 210 moves further forward from the loading completion position, the operation pins 3 of the head shift plate 330
Numeral 32 moves the upper edge of the cam portion 217 relatively from the lower portion 217b to the inclined portion 217c (see FIG. 54). As the working pin 332 moves along the inclined portion 217c toward the high-order portion 217a, the rear end of the head shift plate 330 is pushed up via the working pin 332, so that the regulating piece 333 moves upward, and accordingly, The arm support plate 323 is rotated so that the rear end moves downward by the urging force applied thereto, and accordingly, the rear end of the arm 322b of the head support arm 322 moves downward, The magnetic head 321 supported by the rear end of the arm 322b moves downward (see FIG. 54). When the operation pin 332 of the head shift plate 330 reaches the high-order portion 217a of the cam portion 217, the magnetic head 321
Is the most lowered state, enters the cartridge case 2 through the head insertion opening 5 of the disk cartridge 1, and moves the optical pickup device 2 out of the upper surface of the magneto-optical disk 10.
By 80, a state is brought into contact with or close to a position corresponding to the portion to be irradiated with the laser beam. In this state, the optical pickup device 28 is placed on the signal recording surface of the magneto-optical disk 10.
When 0, a stronger laser beam is applied than during reproduction, and a magnetic field is applied by the magnetic head 321, whereby a new signal is recorded on the signal recording surface of the magneto-optical disk 10. Such signal recording is performed while the optical pickup device 280 moves in the radial direction of the magneto-optical disk 10, and the magnetic head 321 is moved together with the optical pickup device 280.

When the recording of the signal on the magneto-optical disk 10 is completed, the drive motor 2 of the loading drive unit 290
92 is driven in the unloading direction, and the transmission gear train 2
The pinion gear 291 rotates counterclockwise through 93. As a result, first, the mode slider 210 in which the pinion gear 291 and the rack teeth 213 are engaged is moved rearward toward the loading completion position. As the mode slider 210 moves toward the loading completion position, the operation pin 332 of the head shift plate 330 moves to the cam portion 217 of the mode slider 210.
Moves from the high portion 217a to the low portion 217b via the inclined portion 217c. As a result, the head shift plate 330 rotates downward, and the regulating piece 333 descends, so that the operated piece 323d of the arm support plate 323 is pressed downward by the upper side 333a of the regulating piece 333, whereby the arm The support plate 323 is rotated so that the rear end moves upward. Since the rear end of the arm portion 322b of the head support arm 322 is moved upward by the support piece 323a of the arm support plate 323 that rotates so that the rear end moves upward, the arm portion 3 of the head support arm 322 is moved upward.
The magnetic head 321 supported at the rear end of the magneto-optical disk 22b moves upward and separates from the upper surface of the magneto-optical disk 10 upward. Although the head support arm 322 is made of an elastic material, a force acting to move the rear end of the arm portion 322b of the head support arm 322 further upwardly acts by any adjustment. Also the head support arm 32
The contact portion 313a of the regulating arm 313 of the connecting base 310 is located immediately above the rear end of the second arm portion 322b, and the rear end of the arm portion 322b of the head support arm 322 is located at the contact portion 313a. Because it comes into contact, the arm 322
The rear end of b does not move upward more than necessary.

As described above, the mode slider 210
Is moved from the front end of the movement range to the loading completion position, the magnetic head 321 is separated from the upper surface of the magneto-optical disk 10, comes out of the cartridge case 2 upward, and returns to the standby position.

Next, the removal of the disk cartridge 1, that is, the ejection will be described.

When the operation for taking out the disk cartridge 1, that is, the ejection operation, is performed, the drive motor 292 of the loading drive unit 290 is driven in the unloading direction, and the pinion gear 291 is moved from above through the transmission gear train 293. It turns counterclockwise when viewed. As a result, first, the mode slider 210 in which the pinion gear 291 and the rack teeth 213 are engaged is moved rearward toward the initial position. As the mode slider 210 moves toward the initial position, the regulating piece 14 of the connecting member 140 of the cartridge holder 120
4a is another cam portion 216 of the mode slider 210.
To the rear end portion 216b via the inclined portion 216a. While the regulating piece 144a reaches the rear end 216b via the inclined portion 216a of the cam portion 216, the connecting member 140 rotates so that the front end moves upward against the urging force of the extension coil spring 116, and the regulation is performed. The piece 144a is the cartridge holder 1
The lower surface of the portion of the 20 main support 130 near the rear end is pressed upward. As a result, the main support 130 moves upward. With the upward movement of the main support 130 of the cartridge holder 120, the core 11 of the magneto-optical disk 10 separates upward from the turntable 272 of the disk rotation drive mechanism 270.

When the mode slider 210 moves to just before the initial position, the rear end of the pressed piece 211b on the front side of the mode slider 210 is
Abuts on the front edge of the 20 projections 265. Then, before the mode slider 210 reaches the initial position, the loading slider 220 moves slightly backward, and the rack teeth 251 mesh with the pinion gear 291 of the loading drive unit 290. The lock pin 231 is a protrusion 256 of the loading slider 220.
Is pushed to the left by the inclined surface 256b at the rear end, and is engaged with the engagement notch 214 of the mode slider 210, and the mode slider 210 is locked at the initial position. Then, from there, the loading slider 220 is moved to the rack teeth 2
Here, 51 is moved backward by the pinion gear 291, that is, toward the initial position.

When the loading slider 220 moves toward the initial position, the loading slider 220
The transport slider 150, which is connected via the connecting column 264 and the connecting piece 157, is moved backward, that is, toward the standby position. While the transport slider 150 moves toward the standby position, the shutter 6 at the open position of the disc cartridge 1 is relatively pulled forward by the shutter closing piece 162 engaged with the engaging hole 6d. And is moved toward the closed position. When the shutter 6 returns to the closing position, the shutter closing piece 162
The front inclined edge 162a slides on the front opening edge of the engagement hole 6d and moves rightward to release the engagement with the engagement hole 6d.
The shutter closing piece 162 slides on the outer (right) side surface of the intermediate portion 6c of the shutter 6 as it is, relatively moves forward, and eventually comes off the shutter 6. Then, when the transport slider 220 reaches the standby position, the loading slider 220 also reaches the initial position, and the loading drive unit 29
The 0 drive motor 292 stops.

When the transport slider 150 reaches the standby position, most of the disk cartridge 1 except for the front end protrudes from the rear end of the cartridge holder 120.
20, the engagement protrusion 1 of the lock lever 180
The engagement projection 193 of the click member 83 and the click member 190 comes out of the notches 9 and 9 of the disk cartridge 1, respectively, and the disk cartridge 1 can be pulled out of the cartridge holder 120 as it is.

When the disk cartridge 1 is pulled out from the cartridge holder 120, the lock lever 180 rotates clockwise as viewed from above, that is, in the direction of the arrow CW in the figure, and the lock pin 181a of the first arm piece 181 is rotated.
Engages with a lock portion 132a formed at the rear end of the slide groove 132 of the main support 130, and a lock protrusion 193a of the third arm piece 183 engages with the engagement hole 13 formed in the left side wall 130c.
0d, the lock member 170 is pivoted downward, and the lock claw 173 is engaged with the locked hole 156a of the transport slider 150, whereby the transport slider 150 is locked at the standby position.

The shapes and structures of the respective parts shown in the above-described embodiments are merely examples of the specific embodiments to be carried out when the present invention is carried out. The scope should not be construed as limiting.

[0095]

As is apparent from the above description, the recording medium cartridge holder and the recording and / or recording medium of the present invention are provided.
Or, the playback device does not release the lock to the transport unit unless the recording medium cartridge passes through the insertion control unit,
When inserted from the long side, it cannot pass through the insertion restricting portion unless it is in the proper orientation, and erroneous insertion when inserted from the long side can be reliably prevented. Also, when the insertion is performed from the short side, even though the insertion restriction may be inserted deeper than the position where the insertion restriction is formed, the insertion does not pass through the insertion restriction. The lock is not released, and the insertion from the short side can be reliably prevented. In addition, the structure for this is as simple as arranging the lock portion at a position where the lock is released by the recording medium cartridge passing through the insertion restricting portion, so that the mechanism can be simplified.

[0096] Further, the transport unit is provided with a rotating lever that rotates between a first position and a second position, and the rotating lever is moved by the recording medium cartridge passing through the insertion regulating unit. Since the transport unit is moved from the position 1 to the second position to release the lock of the transport unit with respect to the main support unit, the transport unit securely holds the recording medium cartridge and securely moves to the predetermined retracted position. Can be transported.

Further, since the rotating lever securely locks the transport unit at the first position,
Until the transport unit holds the recording medium cartridge, it is not pressed by the recording medium cartridge,
The recording medium cartridge can be reliably held by the transport unit.

[Brief description of the drawings]

FIG. 1 shows a magneto-optical disk cartridge which is a recording medium cartridge used in a disk recording / reproducing apparatus together with FIG. 2, and this figure is a perspective view seen from obliquely upward and forward.

FIG. 2 is a perspective view of a state in which a shutter is at an open position as viewed from below.

3 shows a disk recording / reproducing apparatus together with FIGS. 4 to 55, and FIG. 3 is an overall plan view.

FIG. 4 is an overall left side view.

FIG. 5 is an overall right side view.

FIG. 6 shows a cartridge holder together with FIGS. 7 to 9, and FIG. 6 is a plan view.

FIG. 7 is a bottom view.

FIG. 8 is a rear view.

FIG. 9 is an enlarged sectional view taken along line IX-IX of FIG.

FIG. 10 shows a main support together with FIG. 11, which is a plan view.

FIG. 11 is a bottom view.

FIG. 12 shows a connecting member together with FIG. 13, and FIG. 12 is a plan view.

FIG. 13 is a bottom view.

FIG. 14 shows a transport slider together with FIG. 15, and FIG. 14 is a plan view.

FIG. 15 is a bottom view.

16 shows a state in which the disk cartridge is inserted into the cartridge holder together with FIGS. 17 to 24. FIG. 16 shows the cartridge in a state where the disk cartridge is inserted in a normal direction and the lock by the lock member is released. It is a top view of a holder.

FIG. 17 is an enlarged sectional view taken along line XVII-XVII in FIG. 16;

FIG. 18 is a partially cutaway plan view of the cartridge holder in a state where the disk cartridge is inserted in a proper direction and the lock by the lock lever is released.

FIG. 19 is a plan view showing a state in which the disk cartridge is inserted in a proper direction and the disk cartridge is completely drawn into the cartridge holder.

FIG. 20 is a bottom view of the cartridge holder when a disk cartridge is inserted in a reverse direction.

FIG. 21 is an enlarged sectional view taken along line XXI-XXI of FIG. 20;

FIG. 22 is a bottom view of the cartridge holder when the disk cartridge is inserted upside down.

FIG. 23 is an enlarged sectional view taken along line XXIII-XXIII in FIG. 22.

FIG. 24 is a bottom view of the cartridge holder when the disk cartridge is inserted with the side face facing forward.

25 shows an apparatus main body together with FIGS. 26 to 29, and is a plan view. FIG.

FIG. 26 is a left side view.

FIG. 27 is a right side view.

FIG. 28 is a bottom view.

FIG. 29 is a sectional view taken along the line XXIX-XXIX in FIG. 25.

30 shows a mode slider together with FIG. 31, and FIG. 30 is a plan view.

FIG. 31 is a right side view.

FIG. 32 is a plan view of a loading slider.

FIG. 33 shows the rack forming portion of the loading slider together with FIG. 34 and FIG. 35, and FIG. 33 is a plan view.

FIG. 34 is a bottom view.

FIG. 35 is a left side view.

36 shows a limiter portion of the loading slider together with FIG. 37, and FIG. 36 is a plan view.

FIG. 37 is a right side view.

FIG. 38 is a left side view showing the overwrite head mechanism at a standby position.

FIG. 39 is a left side view showing the overwrite head mechanism at the recording position.

FIG. 40 is a plan view showing a main part in a state where the mode forming mechanism is at an initial position.

FIG. 41 is a left side view showing a main part in a state where the mode forming mechanism is at an initial position.

FIG. 42 is a left side view showing another essential part in a state where the mode forming mechanism is at an initial position.

FIG. 43 is a plan view of two sliders in a state at an initial position.

FIG. 44 is a plan view of two sliders on the way from the initial position to the loading completion position.

FIG. 45 is a plan view of the two sliders on the way from the initial position to the loading completion position and closer to the loading completion position than in FIG. 44;

FIG. 46 is a plan view showing a main part in a state where the mode forming mechanism is at a loading completion position.

FIG. 47 is a left side view showing a main part in a state where the mode forming mechanism is at a loading completion position.

FIG. 48 is a left side view showing another essential part in a state where the mode forming mechanism is at the loading completion position.

FIG. 49 illustrates a state 2 in a state of being at the loading completion position.
It is a top view of two sliders.

FIG. 50 is a plan view of two sliders on the way from the loading completion position to the recording position.

FIG. 51 is a plan view of the two sliders in a state in which the slider is closer to the recording position than in FIG. 50 on the way from the loading completion position to the recording position.

FIG. 52 is a plan view showing a main part in a state where the mode forming mechanism is at a recording position.

FIG. 53 is a left side view showing a main part in a state where the mode forming mechanism is at a recording position.

FIG. 54 is a left side view showing another essential part in a state where the mode forming mechanism is at the recording position.

FIG. 55 is a plan view of two sliders at a recording position.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Magneto-optical disk cartridge (recording medium cartridge), 2 ... Cartridge case, 10 ... Magneto-optical disk (recording medium), 100 ... Recording / reproducing apparatus (recording and / or reproducing apparatus), 120 ... Cartridge holder (recording medium cartridge holder) ), 130 ... main support (main support),
132: sliding groove (guide groove), 132a: lock portion (bent portion), 144a: insertion restricting piece (insert restricting portion), 150:
Conveyance slider (conveyance part), 170: lock member (lock part), 180: lock lever (rotation lever) 181: first arm piece (first arm part), 182: second arm piece (second arm) 183) Third arm piece (third arm)

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takashi Suezaki 6-7-35 Kita-Shinagawa, Shinagawa-ku, Tokyo F-term in Sony Corporation (reference) 5D046 AA16 CB07 CC02 FA04 HA08

Claims (14)

[Claims] 1. A recording medium cartridge holder in which a recording medium cartridge containing a recording medium in a flat, rectangular cartridge case having a long side and a short side in a planar shape is inserted from the long side, A main support portion, a transport portion that is movably supported between the standby position and a predetermined retraction position with respect to the main support portion, and that retracts the recording medium cartridge held at the standby position to a predetermined retraction position; A lock portion that locks at a standby position; and an insertion restricting portion that prevents the recording medium cartridge from passing in a direction other than the normal direction. The lock portion is configured to be transported by a recording medium cartridge that passes through the insertion restricting portion. A recording medium cartridge holder, wherein the lock on the recording medium cartridge is released. 2. The image forming apparatus according to claim 1, wherein the transport unit includes a rotating lever that rotates between a first position and a second position, and the rotating lever is moved by a recording medium cartridge that passes through the insertion regulating unit. 2. The recording medium cartridge holder according to claim 1, wherein the recording medium cartridge holder is rotated from the first position to the second position to release the lock of the transport unit with respect to the main support unit. 3. The rotation lever is engaged with a first arm portion engaged with a bent portion of a guide groove formed in the main support portion and a hole portion formed in the main support portion. A second arm portion, a third arm portion substantially perpendicular to the first arm portion and the second arm portion, wherein the rotating lever is a recording medium cartridge passing through the insertion regulating portion. Second
The first arm portion is disengaged from the bent portion by being brought into contact with the arm portion and rotated, and is engaged with the guide groove which is continuous with the bent portion and is substantially parallel to the moving direction of the transport portion. When the second arm is disengaged from the hole and is engaged with the recording medium cartridge, the lock of the transport unit at the standby position is released, and the second transport unit is retracted from the standby position by the transport unit. The recording medium cartridge holder according to claim 2, wherein the recording medium cartridge can be transported to the position. 4. The insertion restricting portion is formed in a flat plate shape substantially parallel to the main surface of the recording medium cartridge, and is formed at a corner on the side of the insertion end of the recording medium cartridge inserted from a normal direction. The recording medium cartridge holder according to claim 1, wherein the recording medium cartridge holder is disposed at a position corresponding to the groove portion. 5. When the recording medium cartridge is inserted from the end face side opposite to the insertion end, the insertion restricting portion comes into contact with the end face of the recording medium cartridge to restrict the insertion of the recording medium cartridge. The recording medium cartridge holder according to claim 4, wherein: 6. A groove formed in a corner of a side surface on an insertion end side of a recording medium cartridge is formed to be deviated to one main surface side, and the recording medium cartridge has a main surface different from a normal insertion surface as an upper surface. 5. The recording medium cartridge holder according to claim 4, wherein, when the recording medium cartridge is inserted, the insertion of the recording medium cartridge is restricted by contacting the insertion restricting portion with the insertion end of the recording medium cartridge. . 7. When the recording medium cartridge is inserted from the short side, the lock of the transport unit with respect to the main support unit by a lock unit that is unlocked only by the recording medium cartridge passing through the insertion restricting unit is released. The recording medium cartridge holder according to claim 4, wherein the insertion of the recording medium cartridge is regulated by not being released. 8. A recording medium cartridge comprising a recording medium accommodated in a flat cartridge case having a flat shape and a rectangular shape having a long side and a short side is inserted into a recording medium cartridge holder from the long side. Or a reproducing apparatus, wherein the main support portion is conveyed to draw the recording medium cartridge movably supported between the standby position and a predetermined retraction position with respect to the main support portion and held at the standby position to the predetermined retraction position. A lock unit for locking the transport unit at a standby position, and an insertion restricting unit for preventing the recording medium cartridge from passing in a direction other than the normal direction, wherein the lock unit passes through the insertion restricting unit. A recording and / or reproducing apparatus, wherein a lock on the transport unit is released by a recording medium cartridge. 9. A transport lever provided in the transport unit for rotating between a first position and a second position. 9. The recording and / or reproducing apparatus according to claim 8, wherein the recording unit is rotated from the first position to the second position to release the lock of the transport unit with respect to the main support unit. 10. The first lever part engaged with the bent part of the guide groove formed in the main support part, and the rotary lever is engaged with the hole part formed in the main support part. A second arm portion, a third arm portion substantially perpendicular to the first arm portion and the second arm portion, wherein the rotating lever is a recording medium cartridge passing through the insertion regulating portion. Second
The first arm portion is disengaged from the bent portion by being brought into contact with the arm portion and rotated, and is engaged with the guide groove which is continuous with the bent portion and is substantially parallel to the moving direction of the transport portion. When the second arm is disengaged from the hole and is engaged with the recording medium cartridge, the lock of the transport unit at the standby position is released, and the second transport unit is retracted from the standby position by the transport unit. 10. The recording and / or reproducing apparatus according to claim 9, wherein the recording medium cartridge can be transported to a position. 11. The insertion restricting portion is formed in a flat plate shape substantially parallel to the main surface of the recording medium cartridge, and is formed at a corner of a side face on the insertion end side of the recording medium cartridge inserted from a regular direction. The recording and / or reproducing apparatus according to claim 8, wherein the recording and / or reproducing apparatus is arranged at a position corresponding to the groove. 12. When the recording medium cartridge is inserted from the end face side facing the insertion end, the insertion restricting portion abuts on the end face of the recording medium cartridge to restrict the insertion of the recording medium cartridge. 12. The recording and / or reproducing apparatus according to claim 11, wherein: 13. A groove formed in a corner of a side surface on an insertion end side of a recording medium cartridge is formed to be deviated to one main surface side, and the recording medium cartridge has a main surface different from a normal insertion surface as an upper surface. 12. The recording and / or recording device according to claim 11, wherein when inserted, the insertion restricting portion contacts the insertion end of the recording medium cartridge to restrict insertion of the recording medium cartridge. Playback device. 14. When the recording medium cartridge is inserted from the short side, the lock of the transport unit with respect to the main support unit by a lock unit that is unlocked only by the recording medium cartridge passing through the insertion restricting unit is released. The recording and / or reproducing apparatus according to claim 11, wherein the insertion of the recording medium cartridge is regulated by not being released.