JPH064972A - Disk cartridge misinserting preventing mechanism and disk auto-changer - Google Patents

Abstract

PURPOSE:To prevent misinserting of a disk cartridge. CONSTITUTION:The subject device is equipped with a device case having a cartridge inserting/ejecting hole 32, cam bodies 51 and 52 provided freely turnably in the cartridge inserting/ejecting hole 32 of this device case to be in contact with a disk cartridge 15 by its correct insertion and levers 47 and 48 having stoppers 53 and 54 to be in contact with the disk cartridge 15 by its misinsertion. A reset property is imparted to these levers 47 and 48 by tension springs 60 and 61. Thus, when one part of the disk cartridge 15 is correctly inserted into the cartridge inserting/ejecting hole 32, the disk cartridge 15 is brought into contact with the cam bodies 51 and 52 to turn the levers 47 and 48, and on the other hand, when one part of the disk cartridge 15 is misinserted into the cartridge inserting/ejecting hole 32, the disk cartridge 15 is brought into contact with the stoppers 53 and 54 not to turn the levers 47 and 48 at all.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for supplying a disk cartridge having a disk for recording and / or reproducing (hereinafter referred to as "recording / reproducing") to a stocker for storing a cartridge or a recording / reproducing apparatus. And a suitable disc cartridge erroneous insertion prevention mechanism and a disc autochanger.

[0002]

2. Description of the Related Art For example, a disk autochanger for business use has a device housing having a cartridge insertion opening and a cartridge ejection opening opened in the front-rear direction, and a carrier for carrying a cartridge which is provided in the equipment housing and moves vertically. And a holder for cartridge transfer which is provided between the carrier and the front panel of the device housing and which moves forward and backward in the cartridge insertion / removal direction, and a plurality of shelves provided on both upper and lower sides of the holder and arranged in parallel in the vertical direction. Some of them include a stocker for storing cartridges and a disk device provided below these stockers for recording and reproducing a disk of a disk cartridge.

Conventionally, this type of disc autochanger has been disclosed by the applicant of the present invention as "disc autochanger" in Japanese Patent Application Laid-Open No. 3-22251 and is constructed as shown in FIGS.

This will be described with reference to FIG.

In FIG. 1, reference numeral 1 indicates a device housing for a disc autochanger which is opened forward.
A panel 4 having two cartridge insertion ports 2 and a cartridge ejection port 3 which are arranged in parallel in the vertical direction at a predetermined interval is attached to the front opening.

Drive pulleys and driven pulleys 5 and 6 are arranged in parallel with each other at a predetermined interval in the vertical direction.
It is provided inside. Of these, the drive pulley 5 is configured to rotate by the drive of the motor 7.

Reference numeral 8 denotes a timing belt which is moved by the motor 7 and which is stretched between the pulleys 5 and 6 and is housed in the equipment casing 1.

Reference numeral 9 is a guide rail extending in the moving direction of the timing belt 8 and is provided in the equipment casing 1.

Reference numeral 10 is a carrier for carrying the cartridge,
It is rotatably attached to the timing belt 8 via a carrier frame 11 and held on the guide rail 9 via a journal ball bearing 12. This carrier 10 has a shaft 14 driven by a motor 13.
The disk cartridge 15 is configured to be able to rotate 180 degrees around to rotate the disk cartridge 15 in the vertical direction.
Then, on both sides of the carrier 10, two locking claws 1 that move forward and backward by driving a belt (not shown) are provided.
6, 16 are provided.

Reference numeral 17 denotes a shutter which opens and closes the cartridge insertion / removal opening 2 and which is provided in the equipment casing 1 and is configured to be moved up and down by a motor 18.

Reference numeral 19 is a holder for transferring the cartridge,
It is provided behind the shutter 17 and is housed in the device housing 1, and is configured to be able to move forward and backward in the forward and backward directions by driving a motor 20.

Reference numeral 21 denotes a large number of shelves 21 arranged in parallel in the vertical direction.
A stocker for storing a cartridge having a, 21a, ... Is provided on both upper and lower sides of the holder 19 and is stored in the device housing 1.

Reference numeral 22 is a lock plate having a roller 23 at its tip portion, which is rotatably provided in the equipment casing 1. The lock plate 22 rotates in one direction by the spring force of the spring 24 to lock the disk cartridge 15, and rotates in the other direction by driving the plunger solenoid 25 to lock the disk cartridge 15. It is configured so that the state can be released.

Reference numerals 26 and 27 denote two recording / reproducing devices which are arranged in parallel in the vertical direction, which are provided below the stocker 21 and are housed in the equipment casing 1.

A belt 28 for discharging the cartridge is provided in the vicinity of the cartridge discharge port 3 and is housed in the equipment casing 1 so that it can be driven by a motor 29.

In the figure, reference characters A ₁ and A ₂ indicate the transfer direction of the disk cartridge 15, B ₁ , B ₂ and C ₁ , C ₂ indicate the transfer direction and rotation direction of the carrier 10, and D ₁ and D ₂ indicate the rotation direction of the lock plate 22.

Further, the disk cartridge 15 is provided with a first recess 15a capable of engaging the roller 23 and a second recess 15b capable of engaging the locking claws 16 and 16, and the cartridge shutter side. A recessed groove 15c is formed which is open at the end and extends in the cartridge inserting / removing direction.

In the disc autochanger configured as described above, the disc cartridge 15 outside the device housing 1 is stored in the stocker 21 through the following operation procedure.

First, the disk cartridge 15 is synchronized with the opening operation of the shutter 17 driven by the motor 18.
Is inserted into the holder 19. Then, the motor 20 is driven to move the holder 19 in the direction indicated by the arrow A ₁ to transfer the disk cartridge 15 to a predetermined front-back position. Thereafter, by driving a belt (not shown), each locking claw 16 is moved in the direction indicated by arrow A ₁ to engage with the second recess 15b, and then the disc cartridge 15 is transferred into the carrier 10. . And the motor 7
Vertically transporting the disk cartridge 15 in the direction position, the belt moves operating the hook 16 by a drive (not shown) in the direction indicated by arrow A ₂ second predetermined carrier 10 by the elevation operation by the driving of After engaging with the recess 15b, the disc cartridge 15 is transferred to the shelf 21a of the designated stocker 21.

In this way, the disk cartridge 15 outside the device housing 1 can be stored in the stocker 21.

Here, the disk cartridge 15 in the carrier 10 is reversed by driving the motor 13.

In addition, the stocker 21 and each recording / reproducing device 2
The cartridge transfer between 6 and 27 is performed by the holder 1 described above.
It is carried out in the same manner as the cartridge transfer between 9 and the stocker 21.

The recording / reproducing of the disc cartridge 15 is performed after the disc cartridge 15 whose part is exposed to the outside of the recording / reproducing devices 26 and 27 is moved from the cartridge insertion position a to the cartridge loading position b.

By the way, in this type of disc autochanger, in order to record / reproduce the disc of the disc cartridge 15, the insertion of the disc cartridge 15 into the device housing 1 causes the end portion 15A on the shutter mounting side as shown in FIG. It needs to be done from the opposite end 15B.

[0025]

However, the conventional disc autochanger does not have a function of preventing the disc cartridge 15 from being erroneously inserted into the equipment housing 1. Therefore, the disc cartridge 15 is mounted on the shutter mounting side. There is a demand for the appearance of a disc autochanger having a function of preventing the disc cartridge 15 from being inserted from the end 15A on the shutter mounting side since the disc cartridge 15 may be inserted into the device housing 1 from the end 15A.

The present invention has been made in order to meet such a demand, and provides a disc cartridge erroneous insertion preventing mechanism and a disc autochanger capable of preventing erroneous insertion of a disc cartridge.

[0027]

DISCLOSURE OF THE INVENTION A disk cartridge erroneous insertion prevention mechanism according to the present invention is a device housing having a cartridge insertion / removal opening into / from which a disk cartridge can be inserted / removed, and a disk cartridge provided in the cartridge insertion / removal opening of this equipment housing. Is provided with a cam body that abuts upon normal insertion of the cartridge and a rotary lever having a stopper against which the disk cartridge abuts upon incorrect insertion of the cartridge, and the rotary lever is provided with a return habit by a spring.

[0028]

According to the present invention, when a part of the disk cartridge is properly inserted into the cartridge insertion / removal opening, the disk cartridge comes into contact with the cam body, and a part of this abutting force acts in the direction of rotation of the lever to rotate the lever. Will move.

On the other hand, if a part of the disk cartridge is erroneously inserted into the cartridge insertion / ejection slot, the disk cartridge will not contact the stopper and the lever will not rotate.

[0030]

Embodiments of the present invention will be described in detail below with reference to embodiments shown in the drawings.

FIG. 1 is a plan view showing a disc cartridge erroneous insertion preventing mechanism according to the present invention, and FIGS. 2A to 2C are sectional views, a plan view and a perspective view showing a main portion of a disc autochanger, and FIG. FIGS. 4A and 4B are perspective views showing a sensor blade of the disc autochanger and a positional relationship of sensor holes, and FIGS. 4A and 4B are perspective views and cross-sectional views showing an example of inserting a disc cartridge of the disc autochanger. 5 (A) and 5 (B) are perspective views and sectional views showing examples of defective disk cartridge insertion of the disk autochanger, FIG. 6 is a side view showing a disk cartridge transfer device of the disk autochanger, and FIGS. 8A is a side view for explaining the disc cartridge inserting operation of the disc autochanger, and FIG. 9A to 9D are side views showing the disc cartridge ejecting operation of the disc autochanger, FIG. 9 is a perspective view showing the disc cartridge drive mechanism of the disc autochanger, and FIG. 10 is a plan view showing the disc cartridge drive mechanism of the disc autochanger. FIG. 11 is a perspective view showing the shutter opening / closing mechanism of the disc auto changer, FIGS. 12 (A) and 12 (B) are sectional views showing the shutter opening / closing operation of the disc auto changer, and FIG. 13 is a side view of the disc device of the disc auto changer. FIG. 14 is a sectional view showing a plane essential part of the disc device of the disc autochanger, FIG. 15 is a sectional view showing a front principal part of the disc device of the disc autochanger, FIGS. 16A and 16B. ) Is FIG. 17A and FIG. 17B are sectional views for explaining the disc loading operation of the disc autochanger, and FIG. 18A and FIG. In the front view and the side view showing the entire disc autochanger, the same members as those in FIGS. 19 to 21 are denoted by the same reference numerals in the same drawing, and detailed description thereof will be omitted.

In FIG. 1, reference numeral 31 denotes a device housing for a disc autochanger which is open to the front and has a front opening in the front-back direction (disc cartridge 1).
A panel 33 having a cartridge insertion / removal opening 32 opening in the insertion / removal direction 5) is mounted.

Reference numeral 34 denotes a stocker for opening a cartridge, which is opened rearward, and is stored in the equipment casing 31, and has a large number of shelves 34a, 34a, ... Is provided. Further, on both side edges of the opening portion (cartridge insertion / removal opening) of the stocker 34, collar portions 34b, 34 extending in the vertical direction are formed.
c is integrally provided.

35 is a carrier for carrying the cartridge,
It is rotatably attached to the timing belt 8 via a carrier frame 36, and is held on the guide rail 9 via a journal ball bearing 37. The carrier 35 is rotated by 180 ° around the pivot 38 by the motor 13, and the disk cartridge 15 is rotated in the normal direction (vertical direction) of the shelf 34a.
It is constructed so that it can be inverted. The vertical dimension L between the forward rotation position (upper offset position) and the reverse position (lower offset position) of the carrier 35 is set to L = 74 mm. Further, on both sides of the carrier 35, two locking claws 39, 39 that move forward and backward by driving a belt (not shown) are provided. In addition,
The vertical position of the carrier 35 is determined by the count by the encoder E and the detection by the sensor described later.

Reference numeral 40 denotes a U-shaped sensor blade that extends in the vertical direction and opens rearward, and has both the flange portions 34b, 34.
The main sensor hole 40a and the sub sensor hole 40b, which are fixed to the flange portion 34b on the left side of c and open to both sides, are provided on both side walls. Of these, the main sensor hole 40a is formed by a rectangular hole whose vertical dimension is set to 1.4 mm, while the sub sensor hole 40b is located below the main sensor hole 40a and its vertical dimension is set to 5 mm. Formed by a rectangular hole. The hole pitch t of the sensor blade 40 (hole pitch of the main sensor hole 40a) is the same as the pitch p between the two shelves 34a, 34a adjacent to each other among the shelves 34a, 34a. Is set to. The hole pitch t is 1/4 of the vertical dimension L (L = 74 mm) between the normal rotation position and the reverse position of the carrier 32 (t = 18.5 m).
m) is set.

Reference numerals 41 and 42 denote a main sensor and a sub-sensor, which are photointerrupters (light-passing type sensors) corresponding to the main sensor hole 40a and the sub-sensor hole 40b, and are arranged side by side with a predetermined interval therebetween. It is provided and attached to the carrier frame 36 via a base 43. Of these two sensors, the main sensor 41 can detect the normal vertical position of the carrier 35 by the main sensor hole 40a, while the sub sensor 42 can detect the vertical position shift of the carrier 35 by the sub sensor hole 40b. Is configured. Both sensors 41, 42 are positioned on the same line as the center line of the disk cartridge 15 when the carrier 35 is offset downward.

Reference numerals 44 and 45 denote the sensor blade 40.
Stop rollers arranged in parallel via the side walls of the sub-sensor 42. The stop rollers are provided above the sub-sensor 42 and are rotatably supported by the base 43. Both of these stop rollers 44,
45, the sensor blade 40 and each sensor 4
It is configured so as to prevent a collision due to vibration of 1, 42 or the like.

Reference numeral 46 denotes a light reflection type sensor, which is provided above the both sensors 41 and 42 and attached to the base 43, and is configured to detect the presence or absence of the disk cartridge 15. In addition, this sensor 46
Are positioned on the same line as the center line of the disc cartridge 15 when the carrier 35 is offset upward.

Reference numerals 47 and 48 denote levers for preventing erroneous insertion of cartridges, which are arranged in parallel with each other in the left-right direction at a predetermined interval, and are integrally formed with the base pieces 49 and 50 having a U-shape in longitudinal section and these base pieces 49 and 50. A plane having cam surfaces 51a and 52a (the inclined surface on the cartridge insertion side and the inclined surface on the cartridge extraction side which have the same gradient) that are inclined with respect to the cartridge insertion direction and the cartridge withdrawal direction and come into contact with each other when the disk cartridge 15 is normally inserted. The substantially isosceles triangular cam bodies 51 and 52, and the two vertical surfaces 53a and 54a provided on the lower end surfaces of the respective cam bodies 51 and 52 and abutting against each other when the disk cartridge 15 is erroneously inserted (cartridge insertion direction and cartridge A stopper 53 having a rectangular shape in cross section, having a surface (perpendicular to the pulling direction), It consists 4 which are rotatably provided via support shafts 55, 56 to the cartridge insertion opening 32. Both levers 47, 48 are provided with respective locking pieces 5
The rotation is restricted by 7, 58, and the return habit is imparted by the torsion springs 60, 61.
The lever pivots (support shafts 55, 56) contact the levers 47, 48 when the cartridge 15 is pulled out (when the cartridge is ejected) so that the disk cartridge 15 abuts on the back side vertical surfaces 53b, 54b of the stoppers 53, 54. Is set to a position where it rotates.

Reference numeral 62 denotes a drive mechanism for moving the disk cartridge 15 in the opening direction of the cartridge insertion / removal opening 32, and two sensors 63, 64 arranged in parallel in the front-rear direction at predetermined intervals to detect the cartridge transfer position.
And a first rotation lever 6 having a motor 65 as a drive source for starting and stopping the drive by these sensors 63 and 64, and a drive roller 66 rotated by the motor 65.
7 and a second rotation lever 69 that has a driven roller 68 that is rotatably connected to the first rotation lever 67 and that can press the disk cartridge 15 downward. The second rotation lever 69 is provided in the device housing 31. ing.

Both levers 67 and 69 of this drive mechanism 62
Are rotatably connected to each other and are provided at positions in the front-rear direction, and are all formed by levers each having a substantially U-shape in a longitudinal sectional view. Both levers 6
The first tension coil spring 70 imparts a turning force to the respective rollers 66, 68 to press the disk cartridge 15 in the cartridge transfer state, and the second tension coil spring 71 imparts a restoring habit to the elements 7, 69. Has been done. Also, these levers 6
7, and 68, each of which is in contact with each other as indicated by a symbol X, is configured to restrict the lever rotation due to the elastic force of the first tension coil spring 70.

One of the two sensors 63, 64 of the drive mechanism 62 is provided in front of the first rotation lever 67 and is turned on / off depending on the rotation position of the cartridge detection contact 72. Is configured to. The other sensor 64 is provided behind the sensor 63, and is configured to be turned on / off depending on the turning position of the second turning lever 69.

Reference numeral 73 is a transmission mechanism for transferring the cartridge,
The drive roller 6 is provided in the device housing 31 and
6 and the motor 65.

This transmission mechanism 73 has the driving roller 66.
The first pulley 7 arranged in parallel in the left-right direction of the vehicle at a predetermined interval
4 and the first pulley 7 which is arranged in parallel with the first transmission shaft 75 at a predetermined interval in the front-rear direction.
4 and a second transmission shaft 79 having a second pulley 77 connected to the No. 4 via a belt 76 and a worm gear 78 arranged in parallel with the second pulley 77 at a predetermined distance in the left-right direction, and a forward / backward movement at right angles to the second transmission shaft 79. A third transmission shaft 82 having a worm 80 freely provided (in the axial direction of the worm) and meshing with the worm gear 78, and a third pulley 81 integrally formed on one end face of the worm 80, and the third transmission shaft 82. Of the motor 65
And a fourth pulley 84 fixed to the output shaft 65a and connected to the third pulley 81 via a belt 83.

Reference numeral 85 denotes a shutter having a rectangular shape in front view that opens and closes the cartridge insertion / removal opening 32 and is rotatably provided in the equipment casing 31.

Reference numeral 86 denotes a cam which can press a roller described later, which is provided in the equipment casing 31 and is rotated by a motor 87 when the shutter is opened and closed.

Reference numeral 88 is a link mechanism for opening and closing the shutter.
An L-shaped first lever 91 having a rotation restricting stopper 89 that comes into contact with the fixed surface 31a in the device housing 31 when the shutter is closed and a roller 90 corresponding to the cam 86, and the first lever 91. And an I-shaped second lever 92 swingably connected to the shutter 85.

Of the pivot points of the link mechanism 88, the pivot points O ₁ of the levers 91 and 92 are the pivot points O ₂ between the shutter 85 and the first lever 91, and the pivot points of the second lever 92. connecting the O ₃ is positioned below the straight line S. That is, the pivot point O ₁ is the shutter 8
The stopper 89 is set in such a position as to come into pressure contact with the fixed surface 31a when a forward acting force P is applied to the valve 5 in the closed state.

Reference numeral 93 is a drive housing which is opened in the front-rear direction, is provided below the stocker 34, and has a cartridge opening 9 in the front opening which is opened in the front-rear direction.
A panel 95 having 4 is mounted. This housing 93
Inside, two left and right first guide rails 96 (only one is shown) extending in the vertical direction and four front, rear, left and right second guide rails 97 (partly not shown) extending in the front and rear direction, and two left and right A third guide rail 98 is provided. Further, in the housing 93, a spindle motor 99 for rotating the disk cartridge 15 at a high speed and two right and left cartridge positioning pins 100 and 101 arranged in parallel via the spindle motor 99 are provided. A storage space G is formed in the housing 93 so that the disk cartridge 15 is partially exposed to the outside and can be moved between the cartridge insertion position C ₁ and the cartridge loading position C ₂ .

Reference numerals 102 and 103 denote two left and right slide plates that move forward and backward along the second guide rail 97, and are provided inside the casing 93. Each of these slide plates 10
Guide rollers 104 and 105, which are arranged side by side in the front-rear direction at predetermined intervals in parallel with each other, are rotatably attached to the third guide rails 98, and are attached to the upper end portions in the front-rear direction. Rack 102a extending in the direction
103a is formed. In addition, these slide plates 102 and 103 have four cam grooves 102b and 103 on the front, rear, left and right sides, each of which has an upward slope in the cartridge insertion direction.
b (only one shown) is formed.

Reference numeral 106 denotes a drive shaft extending in the left-right direction, which is rotatably supported by the housing 93 via bearings 107 and 108, and the racks 102 are provided at both ends.
Gears 109 and 110 meshing with a and 103a are fixed.

111 is a tray for holding the cartridge,
It is provided between the slide plates 102 and 103 so as to be able to move up and down, and rollers 112 and 113, which are movable along the first guide rail 96 and the cam grooves 102b and 103b, are rotatably provided on both sides. ing.

Lock plates 114 and 115 for restricting lever rotation are fixed to the upper side of the front ends of the slide plates 102 and 103.

Reference numeral 116 denotes a sensor housing case which opens upward and is fixed to the front end surface of the panel 95.
Inside the case 116, two light passage type sensors 11 are arranged in parallel with each other at a predetermined interval in the left-right direction.
7, 118 are housed, and support shafts 119, 120 projecting in directions approaching each other are attached to both sides.

121 is a lever for protecting the sensor, which is rotatably supported by the support shafts 119 and 120. At the upper end of the lever 121, the cartridge insertion / removal opening 94
Is integrally provided with a cartridge guide piece 122 for opening and closing a part of the opening of the cartridge guide piece 122. The cartridge guide piece 122 has a locking hole 122a with which the lock plate 114 can be engaged and a through hole through which a detector described later can be inserted. 122b, 122c
Is provided. The lever 121 is restricted in rotation by the engagement of the lock plate 114 and the locking hole 122a in the disc unloading state, and is interlocked with the disc loading operation.
4 is released from the locking hole 122a, whereby the rotation restriction is released. A lever for guiding the cartridge is provided on the side of the lever 121, the rotation of which is restricted by the engagement with the lock plate 115 and the rotation of which is released by the disengagement of the lock plate 115 (see FIG. (Not shown).

Reference numerals 123 and 124 denote holding shafts extending in the vertical direction, and are fixed to the case 93 with a part thereof facing the inside of the case 115. These holding shafts 123, 12
4, detectors 125 and 126 corresponding to the light passage type sensors 117 and 118 are provided so as to be able to move forward and backward.

Each of these detectors 125 and 126 is composed of a detector for detecting the disc type of the disc cartridge 15 and a detector for detecting whether or not the disc cartridge 15 can write to a disc (not shown).
The rotation of the lever 121 causes the outside (device housing 31
It is configured to be exposed to).

Numeral 127 is a tension coil spring which gives the lever 121 habit of returning. Also, 12
Reference numerals 8 and 129 are compression coil springs that give return habits to the detectors 125 and 126.

In the disc autochanger constructed as described above, when the disc cartridge 15 is normally rotated / reversed by the carrier 35 to the parallel direction position of the shelf 34a, the space between the cartridge insertion / removal port of the carrier 35 and the cartridge storage position in the stocker 34 is changed. Deviation (74m
m) has a pitch (18.5 mm) between the shelves 34a and 34a of 4
The size will be doubled.

Therefore, in this embodiment, the sensor 4 for detecting the forward rotation position and the reverse position of the carrier 35, respectively.
Since 1 and 42 can be shared, one set of sensors can be used.

Further, in the present embodiment, the fact that one set of sensors is not necessary can reduce the number of sensor mounting operations and the number of parts.

Further, in the present embodiment, the single drive mechanism 62 can press the disk cartridge 15 when the cartridge is transferred, and can release the press on the disk cartridge 15 when the cartridge is not transferred. The number can be reduced.

Besides, in the present embodiment, the cam bodies 51,
Setting the inclination of the cartridge 52 on the cartridge insertion side and the inclination of the cartridge anti-insertion side to the same gradient (the shapes of the cam bodies 51 and 52 are substantially isosceles triangles in plan view) can simplify the manufacturing of the lever.

Further, in the present embodiment, the transmission mechanism 73 being a transmission mechanism that is movable in the axial direction of the worm 80 can alleviate the impact force of the worm gear 78 on the worm 80.

Further, in this embodiment, the lock plate 1
14 is engaged with each locking hole 122a by the cartridge guide piece 122 of the lever 121.
5 can be introduced into the cartridge insertion / extraction opening 94, the disk cartridge 15
It is possible to prevent the deviation from the cartridge insertion position.

Next, in this embodiment, the shutter opening / closing operation of the disk cartridge 15, the operation of the erroneous insertion preventing mechanism of the disk cartridge 15, the cartridge inserting operation and the cartridge ejecting operation of the disk cartridge transfer device, and the disk cartridge 15 for the disk device are carried out.
The loading operation and the unloading operation will be described with reference to the drawings.

(1) The shutter opening / closing operation of the disk cartridge 15 will be described with reference to FIG.

First, to open the shutter 85, the first lever 91 is rotated clockwise by the rotation of the cam 86 driven by the motor 87, and the shutter 85 is rotated counterclockwise in conjunction with this rotation operation. It is carried out by rotating to.

On the other hand, to close the shutter 85, the first lever 91 is rotated counterclockwise by the rotation of the cam 86 driven by the motor 87, and the shutter 85 is rotated clockwise in conjunction with this rotation operation. It is carried out by rotating to.

When the shutter 85 is closed,
When the forward acting force P is applied to the shutter 85, the stopper 8
Since 9 contacts the fixed surface 31a of the device housing 31, the shutter 85 does not open.

(2) The operation of the erroneous insertion prevention mechanism of the disc cartridge 15 will be described with reference to FIGS. 4 and 5 (FIG. 6).

First, as shown in FIG. 4, when a part of the disk cartridge 15 is inserted into the cartridge insertion / removal opening 32 from the end opposite to the shutter mounting side, the disk cartridge 15 is attached to the cam surfaces 51a and 52a of the cam bodies 51 and 52. Due to the contact, a part of this contact force acts in the rotating direction of the levers 47 and 48, and the levers 47 and 48 rotate against the resilient force of the torsion springs 60 and 61.

On the other hand, as shown in FIG. 5, when a part of the disk cartridge 15 is inserted into the cartridge insertion / removal opening 32 from the end of the shutter mounting side, the disk cartridge 1
Since 5 abuts on the end faces 53a, 54a of the stoppers 53, 54, this abutting force does not act in the direction of rotation of the levers 47, 48, and the levers 47, 48 do not rotate.

(3) The cartridge inserting operation and the cartridge ejecting operation of the disc cartridge transfer device will be described with reference to FIGS. 7 (A) to (D) and FIGS. 8 (A) to (D).

First, the disc cartridge 15 is transferred in the inserting direction by inserting a part of the disc cartridge 15 into the cartridge insertion / extraction opening 32.
At this time, as shown in FIG. 7A, the sensor 63 is turned on by the rotation of the cartridge detecting contact 72 caused by the pressing of the disk cartridge 15. Further, as shown in FIG. 7B, the second rotation lever 68 is rotated counterclockwise by the pressing of the driven roller 68 by the disk cartridge 15 to turn on the sensor 64, and the motor 6
The drive roller 66 rotates in the counterclockwise direction by the drive of 5, and the drive mechanism 62 starts the transfer of the disk cartridge 15. Then, as shown in FIG. 6C, when the sensor 63 is turned “OFF” due to the return of the cartridge detecting contact 72 due to the release of the pressure of the disc cartridge 15, the transfer of the disc cartridge 15 by the drive mechanism 62 is stopped. Thereafter, as shown in FIG. 3D, the locking claws 39, 39 are moved rearward (in the cartridge insertion direction) by driving a belt (not shown) and are housed in the carrier 35.

On the other hand, in order to transfer the disc cartridge 15 in the ejecting direction, as shown in FIG. 8A, the ejecting operation is carried out of the carrier 35 by moving the locking claws 39, 39 forward (in the cartridge ejecting direction) by the belt drive. By doing. At this time, as shown in FIG. 6B, the second rotation lever 68 is rotated counterclockwise by the pressing of the driven roller 68 by the transfer of the disk cartridge 15, and the sensor 64 is turned “ON”. Further, as shown in FIG. 6C, the sensor 63 is turned “O” by the rotation of the cartridge detection contact 72 caused by the pressing of the disk cartridge 15.
Then, the drive roller 66 is rotated clockwise by the drive of the motor 65 to start the transfer of the disc cartridge 15 by the drive mechanism 62. Then, as shown in FIG. 3D, when the sensor 64 is turned “OFF” by releasing the pressing of the disk cartridge 15, the drive mechanism 62 stops the transfer of the disk cartridge 15.

(4) The loading operation and the unloading operation of the disc cartridge 15 with respect to the disc device will be described with reference to FIGS. 13 and 17.

That is, in the loading operation of the disk cartridge 15, the disk cartridge 15 is exposed in the tray 111 by the movement of the locking claws 39, 39 (in the cartridge insertion direction) by the driving of the belt (not shown), and the loading operation is performed. The gear 109 by the rotation of the shaft 106,
After the slide plates 102 and 103 are moved in the cartridge insertion direction by the rotation of 110, the tray 111 is lowered to move the disk cartridge 15 from the cartridge insertion position C ₁ to the cartridge loading position C ₂ . At this time, the slide plate 10
The lock plates 114, 11 are interlocked with the moving operation of the 2, 103.
Since 5 moves in the cartridge insertion direction, the lock plate 1
The engagement between 14, 115 and the locking hole 122a (only one is shown) is released. Then, the lever 121 is rotated against the elastic force of the tension coil spring 127 by the pressing force of the disc cartridge 15 when the cartridge is inserted.

On the other hand, the unloading operation of the disk cartridge 15 is performed by the rotation of the drive shaft 106 of the gear 10.
After the slide plates 102 and 103 are moved in the cartridge pull-out direction by the rotation of 9, 110, the tray 1
This is performed by raising 11 to move the disk cartridge from the cartridge loading position C ₂ to the cartridge insertion position C ₁ . At this time, slide plate 1
The lock plates 114, 11
5 moves in the cartridge pull-out direction, and the lock plate 11
4, 115 and the locking hole 122a (only one is shown) are engaged. After that, the locking claw 3 is driven by driving a belt (not shown).
The disk cartridge 15 is exposed to the outside of the tray 111 by the rearward movement of the cartridges 9, 39 (the direction of pulling out the cartridge).

The present invention is not limited to the above-described embodiments, but various effective modifications and changes can be made based on the technical idea of the present invention.

[0081]

As described above, according to the present invention, a device housing having a cartridge insertion / removal opening into / from which a disk cartridge can be inserted / removed, and a disk cartridge provided in the cartridge insertion / removal opening of the device housing can be inserted by normal cartridge insertion. The cam body and the rotating lever having a stopper with which the disk cartridge comes into contact with the cartridge due to the wrong insertion of the cartridge are provided with a return habit by a spring. When the disk cartridge is properly inserted into the cam body, the disk cartridge comes into contact with the cam body, and a part of this contact force acts in the rotation direction of the lever to rotate the lever. If inserted incorrectly, the disc cartridge will contact the stopper. Lever does not rotate Te, it is possible to prevent erroneous insertion of the disk cartridge.

[Brief description of drawings]

FIG. 1 is a plan view showing a disc cartridge erroneous insertion prevention mechanism according to the present invention.

2A to 2C are a sectional view, a plan view and a perspective view showing a main part of a disc autochanger.

3A and 3B are a perspective view showing a sensor blade of a disc autochanger and a view showing a positional relationship between sensor holes.

4A and 4B are a perspective view and a cross-sectional view showing an example of a disc cartridge normal insertion of a disc autochanger.

5A and 5B are a perspective view and a cross-sectional view showing a defective example of a disc cartridge insertion of a disc autochanger.

FIG. 6 is a side view showing a disc cartridge transfer device of the disc autochanger.

7A to 7D are schematic views shown for explaining a disc cartridge insertion operation of the disc autochanger.

8A to 8D are schematic views shown for explaining a disc cartridge ejecting operation of the disc autochanger.

FIG. 9 is a perspective view showing a disc cartridge drive mechanism of the disc auto changer.

FIG. 10 is a plan view showing a disc cartridge drive mechanism of the disc autochanger.

FIG. 11 is a perspective view showing a shutter opening / closing mechanism of the disc auto changer.

12A and 12B are cross-sectional views shown for explaining the shutter opening / closing operation of the disc auto changer.

FIG. 13 is a cross-sectional view showing a main part of a side surface of a disc device of a disc autochanger.

FIG. 14 is a cross-sectional view showing a main part of a plane of a disc device of a disc autochanger.

FIG. 15 is a sectional view showing a front main part of a disc device of a disc autochanger.

16 (A) and 16 (B) are a plan view and a front view showing the entire disc device of the disc autochanger.

17A and 17B are cross-sectional views shown for explaining the disc loading operation of the disc autochanger.

18A and 18B are a front view and a side view showing the entire disc autochanger.

FIG. 19 is a sectional view showing an entire conventional disc autochanger.

FIG. 20 is a plan view showing a conventional disc autochanger.

FIG. 21 is a front view showing a carrier moving mechanism of a conventional disc autochanger.

FIG. 22 is a front view showing an example of inserting a disc cartridge of a conventional disc autochanger.

[Explanation of symbols]

 15 ... Disk cartridge 31 ... Equipment housing 32 ... Cartridge insertion / extraction opening 47, 48 ... Lever 51, 52 ... Cam body 51a, 52a ... Cam surface 53, 54 ... Stopper 53a, 54a ... Vertical surface 60, 61 ... Torsion spring

Claims (4)

[Claims] 1. A device housing having a cartridge insertion / removal opening into / from which a disk cartridge can be inserted / removed, a cam body provided in the cartridge insertion / removal opening of the equipment housing and contacting the disk cartridge by normal insertion, and the disk cartridge are accidentally inserted. A disc cartridge erroneous insertion prevention mechanism comprising: a rotation lever having a stopper in contact with the rotation lever; 2. The disc cartridge erroneous insertion preventing mechanism according to claim 1, wherein the cam surface of the cam body is formed by a cartridge insertion side inclined surface and a cartridge extraction side inclined surface having the same gradient. 3. An automatic disc changer comprising the disc cartridge erroneous insertion prevention mechanism according to claim 1. 4. The automatic disc changer according to claim 3, wherein the cam surface of the cam body is formed by a cartridge insertion side inclined surface and a cartridge extraction side inclined surface having the same gradient.