JPH02208865A - Disk cartridge loading device - Google Patents

Abstract

PURPOSE:To prevent dust, etc., from infiltrating to the inside of a device by drawing out a tray from a cartridge main body by releasing the engagement of an engaging lug on the middle way of carrying the tray. CONSTITUTION:The tray 3 is drawn out from the cartridge main body 5 by releasing the engagement of the engaging lugs 13a and 13b with engaging parts 27a and 27b with a connection releasing means(release link) on the middle way of carrying the tray 3. Thus, since the tray 3 is taken out from the cartridge 1 in the inside of the device and the recording and reproduction of information is performed at a separated state, the tray 3 can be engaged in the inside of the cartridge 1 at a housing state outside the device. In such a manner, the infiltration of the dust to the inside of the cartridge 1 is hard to occur, and also, a disk can be prevented from being exposed to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk cartridge loading device for loading a cartridge containing an information recording medium such as an optical disk or a magnetic tape into a recording/reproducing device.

[Prior Art] Recording is generally performed in computers, word processors, audio equipment, visual equipment, etc.

Optical disks, magnetic disks, magnetic tapes, etc., used as recording and playback media for video recording, etc., are often used while being housed in cartridges, and these devices require that the recording medium and cartridge be placed in the recording and playback position within the recording and playback device. A loading device is provided for loading.

This loading device generally holds a cartridge inserted a certain depth from an opening by a cartridge holding member,
The cartridge holding member is further introduced into the recording/reproducing position and locked, and when the cartridge is removed, this lock is released, the cartridge holding member is returned to the insertion position, and the cartridge is removed from that position.

The conventional disk cartridge has a drive hole for inserting a disk drive means in the cartridge body and a write/read hole extending in the radial direction of the disk, and has a position where the drive hole and the write/read hole are blocked and an exposed position. Equipped with a shutter that can be opened and closed at both positions.

Information is recorded and played back while the disc is housed inside the cartridge body.

[Problems to be Solved by the Invention] However, when such a disk cartridge is used, a relatively large clearance is required in the thickness direction and radial direction of the disk because the disk is rotationally driven inside the cartridge body. Therefore, not only does the disk cartridge itself become large, but it is also disadvantageous in making the cartridge loading device thinner. Furthermore, if a clearance is provided, there will be play inside the cartridge, causing damage to the disk due to rocking when carried, and causing unpleasant noises.

Additionally, conventional disk cartridges have a structure that allows the shutter to be easily opened and closed manually.

There is also the problem that dust and the like easily enter the inside of the cartridge, which adversely affects recording and reproduction.

SUMMARY OF THE INVENTION An object of the present invention is to provide a disk cartridge loading device that solves the problems of the conventional device, allows the cartridge to be made thinner with a relatively simple mechanism, and prevents dust from entering the device.

[Means for Solving the Problems] In order to achieve the above object, in the disk cartridge loading device according to the present invention, a locking pawl is provided on the tray on which the recording medium is placed, and the tray is stored so that it can be pulled out. The cartridge body is provided with a locking portion that engages with the locking pawl to hold the tray in the stored state, and a locking release that releases the engagement with the locking portion is provided in the disk cartridge loading device. and a conveying means for holding and moving the tray, wherein the locking release means releases the locking pawl from the locking part 1 while the tray is being conveyed, and the cartridge main body is moved. The present invention is characterized in that the tray is pulled out from the tray.

[Function] The disk cartridge loading device having the above configuration has the following features:
Inside the device, the engagement release means releases the engagement between the locking claw of the tray and the locking portion of the cartridge body, and the tray is stored in the cartridge body outside the device where the tray is composed of the cartridge body. In the state of being engaged cI:.

be done.

[Example] The present invention will be explained in detail based on illustrated embodiments.

1 to 3 show a disk cartridge 1 used in this embodiment, including a tray 3 and a cartridge body 5.
It consists of a disk 7 and is housed inside. In FIG. 1, a disk 7 has a center hole 9 at its center for being clamped and rotationally driven during recording and reproduction. The tray 3 has a disk mounting part 11 for placing the disk 7, locking claws 13a and 13b provided on both sides using elastic parts, and a chucking means provided in the recording/reproducing apparatus. Chucking recesses 15a and 15b for chucking, positioning holes 17a and 17b for positioning within the recording and reproducing apparatus, and a turntable and head for rotating the disk 7 and writing and reading data during recording and reproducing. The drive write/read hole 19 has a drive write/read hole 19 into which the write protector 21 enters, and a write protector holding portion 23 that movably holds the write protector 21 as a detected member for preventing erroneous erasure at a position where it can be erased and where it cannot be erased. . Further, the cartridge body 5 includes a tray storage section 25 that stores the tray 3, and locking sections 27a and 27b that engage with the locking claws 13a and 13b to hold the tray 3 in the storage position of the tray storage section 25. Furthermore, abutting portions 29a and 29b are provided which abut against the holding claws within the recording/reproducing apparatus.

FIG. 2 is a plan view of the disc cartridge 1 with the tray 3 stored therein, and the tray 3 with the disc 7 placed thereon is stored in the tray storage portion 25 of the cartridge body 5. As shown in FIG. FIG. 3 is a plan view of the tray 3 pulled out from the tray storage part 25 to a predetermined position. Then, the disc 7 is further clamped on the turntable, lifted upward from the disc mounting section 11, and driven to rotate.

FIG. 4 is a plan view of the disk cartridge loading device with half removed, and numeral 31 is the main body of the device. Two guide shafts 33 are fixed in the horizontal direction to the main body 31 of the device.
Optical heads 35, which are movably guided in the radial direction of the disk 7 by a guide shaft 33, are arranged on both sides or linearly driven by a near motor 37.

Also.

A turntable 41 that is rotationally driven by a spindle motor 39 is provided. On the device main body 31,
Move tray 3 in the X direction (horizontal direction in Figure 4) and Y direction (fourth direction).
2 wooden tray positioning shafts 43 for positioning in the vertical direction (in the figure) and the X direction (direction perpendicular to the plane of the paper in FIG. 4);
Tray support plate 4 for positioning the tray 3 in the X direction
Two main body support shafts 47 are provided for positioning the cartridge main body 5 at an angle of 5° and in the X direction.

Further, a detection switch 49 for preventing accidental erasure is provided at a position corresponding to the write protector 21 provided on the tray 3, and a detection switch 51 for detecting cartridge loading is provided at an adjacent position.

FIG. 5 is a front view of the apparatus with the front panel 53 removed. The front panel 53 is provided with an opening 55 for inserting and removing the disk cartridge 1, and an eject button 57. There are fixed guide plates 5 on both the left and right sides of the device main body 31.
9a, 59b are attached, and the fixed guide plates 59a, 5
Driving plates 61a, 61b are arranged on the outside of 9b, interlocking plates 63a, 63b are arranged on the inside, and a hold plate 65, a tray holder 67, a tray holder 67,
Cartridge holders 69 are sequentially arranged. The power motor 71 is a motor for driving the loading device, and is fixed within the device main body 31, and a motor pinion 73 is attached to its output shaft.

Further, FIG. 6 is a right side view of the loading device at the recording/reproducing position. As shown in the right side view of FIG. 6, the output of the power motor 71 is reduced by a gear 79 and a gear 81 which are rotatably supported by support shafts 75 and 77, and further by both ends of a connecting shaft 83 facing the X direction. The rotational force is distributed to the left and right by a pair of left and right gears 85a and 85b provided on the drive shaft 89a through gears 87a and 87b, respectively.

89b. Fixed guide plate 5
9a and 59b have horizontal guide holes 91a.

91b and a vertical guide hole 93a continuous thereto.

93b, guide shafts 95a and 95b, and vertical guide holes 97a and 97b. In addition, the drive plate 81a
, 61b are formed with horizontal guide holes 99a, 99b, and by engagement with the guide shafts 95a, 95b, the drive plate 81
a and 61b are movable in the horizontal direction with respect to the device main body 31, and engage with drive racks 101a and 101b that mesh with drive pinions 89a and 89b, and guide shafts 103a and 103b provided on interlocking plates 63a and 63b. However, cam grooves 105a and 105b are formed to guide the interlocking plates 63a and 63b in the horizontal and vertical directions. Further, the drive plate 61a is provided with a suppressor 111 that operates the loading completion switch 107 and the ejection completion detection switch 109.

FIG. 7 is a right side view with the fixed guide plate omitted at the insertion position, that is, the loading start position. As shown in FIG. 7, the interlocking plates 83a, 63b have guide shafts 113a, 11
3b, supporting shafts 117a and 117b for pivotally supporting the rolling pinions 115a and 115b are provided, and the guide hole 11
9a and 119b are provided. In the cartridge holder 69, guide shafts 121a provided on both left and right sides,
121b is inserted into and engaged with the fixed guide plates 59a, 59b (7) and guide holes 97a, 97b, thereby being movable in the vertical direction with respect to the device main body 31,
A guide shaft 113a provided on the interlocking plates 63a and 63b,
113b and guide holes 123a, 123b that movably guide the interlocking plates 83a, 63b in the horizontal direction, and a transfer pinion 115a that is pivotally supported by the interlocking plates 63a, 63b.
, 115b are provided. Guide shafts 127a and 127b protruding from both left and right side surfaces of the tray holder 67 are connected to an interlocking plate 83a,
The tray holder 67 is inserted into and engaged with the guide holes 119a, 119b of the interlocking plates 63a, 63b.
a driven rack 129a that is movably guided in the horizontal direction with respect to b and meshes with drive pinions 115a and 115b that are rotatably supported by interlocking plates 63a and 63b;
129b is formed.

In FIG. 8, a support shaft 1 is provided on the upper surface of the fixed guide plate 59a.
The switch link 133 is rotatably supported by the switch link 31 and urged to rotate clockwise by the spring 135. A fixed guide plate 59 is attached to the switch link 133.
A pressing portion 137 that operates a loading start detection switch 136 attached to the holding plate 65 and a cam 141 that engages with an engagement stud 139 provided on the holding plate 65 are formed. A guide hole 143 is formed in the hold plate 65,
Furthermore, it is engaged with and supported by the guide shaft 145 of the lower tray holder 67, and is biased downward with respect to the tray holder 67 by springs 147a and 147b. The lower surface of the hold plate 65 is provided with contact studs 149a and 149b that come into contact with the tip of the disk cartridge 1 during insertion, and the support shafts 15 are provided at both left and right ends of the hold plate 65.
Chuck links 153a, 153 by 1a, 151b
b is rotatably supported, and springs 155a and 155b urge the chuck link 153a to rotate counterclockwise and the chuck link 153b to rotate clockwise. In addition, holding claws 157a and 157b are provided on the chuck links 153a and 153b so as to protrude upward and downward, and the upwardly protruding portions of these holding claws 157a and 157b are connected to tapered cam portions provided on the fixed guide plates 59a and 59b. 159a, 159b, regulation cam parts 161a, 18
1b, and a contact portion 163a.

163b, and the downward protrusion fits into the charring recesses 15a and 15b when the disk cartridge 1 is inserted. The tray holder 67 also includes engagement studs 167a and 16 of release links 165a and 165b, which will be described later.
Engagement cams 169a and 169b that engage with 7b are formed. On the upper surface of the cartridge holder 69 located below the tray holder 67, there are pressing parts 171a and 173a.
a leaf spring 175a and a pressing portion trtb.

The leaf springs 175b each having a width of 173b are fixed to the fixed shaft 1.
It is fixed by 77a and 177b.

Furthermore, a clamper 179 is supported with predetermined clearances in the x, Y, and Z directions.

On the cartridge holder 69, there are spindles tata, 181.
Release link tssa by b.

165b is rotatably supported, and springs 183a, 183
b, the release link 165a is biased to rotate clockwise, and the release link 165b is biased to rotate counterclockwise.・Also, release links 165a, 165b
The engaging cams 169a and 169b of the tray holder 67 are
Engagement studs 187a, 167b that engage with the cartridge body 5, and engagement 1F release claws 185a, 185b that release the engagement between the cartridge body 5 and the tray 3 are provided.

In the above mechanism, first, the opening 55 of the front panel 53 is opened.
As shown in FIG. 2, the disc cartridge 1 inserted from the cartridge has a tray 3 on which a disc 7 is placed stored in the cartridge body 5.

At the insertion position of the cartridge main body 5 shown by the two-dot chain line in FIG. From this state, as shown in FIG. 9, when the disk cartridge l is further pressed and inserted into the interior against the urging force of the springs 147a and 147b,
The tip surface of the disk cartridge 1 and the contact stud 149
Due to contact with the disk cartridges 149a and 149b, the hold plate 65 moves toward the back of the apparatus main body 31, that is, upward in FIG. 8, together with the disk cartridge 1. However, during this movement, the holding claws 157a, 157b provided on the chuck links 153a, 153b slide on the tapered cam portions 159a, 159b formed on the fixed guide plates 59a, 59b due to the urging force of the springs 155a, 155b. The chuck links 153a, 153b rotate in the direction in which the left and right holding claws 157a, 157b approach each other, and the holding claws 157a, 157
b are fitted into the chucking recesses 15a and 15b of the disk cartridge 1, and at this point the disk cartridge 1 is held between the abutment studs 149a and 149b and the holding claws 157a and 157b, and the degree of freedom in the Y direction is restricted. Ru. However, regarding the X direction and Z direction,
The disc cartridge 1 is guided and its position is regulated by a guide portion (not shown) provided on the cartridge holder 69.

Next, during the movement, at a position moved to the back from the above-mentioned chucked position, the holding plate 65
Due to the engagement between the engagement stud 139 and the cam 141 provided in the insertion position shown in FIG. and cam 141
By disengaging from the press section 137, the pressing section 137 rotates to a position where the loading start detection switch 136 is actuated, as shown in FIG. 9, and is held at that position.

Here, when the loading start detection switch 136 is activated, the motor binion 73 is rotationally driven in the direction in which the disk cartridge 1 is loaded. A power motor 71 is decelerated from a motor binion 73 through a deceleration mechanism and distributed by integral left and right gears 85a and 85b via a connecting shaft 83.
The output of
The drive plates 81a and 61b are moved toward the back of the apparatus main body 31 via ib.

The driving plates 61a and 61b are driven by a predetermined stroke from the front panel 53 side of the apparatus main body 31 toward the back of the apparatus main body 31 so that the state shown in FIG. 1O changes to the state shown in FIG. Cam groove 10 provided in drive plates 61a, 61b
5a, 105b and the guide shafts 103a, 103b provided on the interlocking plates 63a, 63b, the drive plate 61
a, 61b fix the interlocking plates 63a, 63b to the guide plates 59a, 5 so that the state shown in FIG. 7 changes to the state shown in FIG.
9b(7) Drive a predetermined stroke along the horizontal guide holes 91a, 91b, and then drive the vertical guide holes 93a,
93b by a predetermined stroke.

In addition, during the horizontal movement of the interlocking plates 63a and 63b, the rolling pinios y115a, which are supported by the interlocking plates 63a and 63b,
115b rolls on the rolling racks 125a and 125b while the driven rack 129 provided on the tray holder 67
By driving the interlocking plates 63a and 63a, 129b,
The tray holder 67 is driven in the same direction by a movement amount twice as much as the horizontal movement amount of 3b. Further, the tray holder 67 that has completed the horizontal movement of a predetermined amount moves to the cartridge holder 69,
Together with the interlocking plates 63a and 63b, they move vertically by a predetermined stroke, that is, they descend.

In this way, the tray holder 67, which moves horizontally with a predetermined stroke, transports the holding plate 65 from the loading start position shown in FIG. 9 to the position directly above the apparatus main body 31 shown in FIG. 12. Thus.

Chucking recess 15a of disk cartridge 1;
Chuck link 153a, 1 for chucking 15b
53b (7) Holding claws 157a, 157b are also transported from the position shown in FIG. 9 to the position shown in FIG. 12.

Therefore, as described above, as the mechanism portion having the chucking means moves horizontally, the disk cartridge 1
also moves towards the back from the loading start position. Release links 165a and 165b provided in the cartridge holder 69 as lock release means for releasing the lock between the cartridge main body 5 and the tray 3 release the moving disk cartridge 1 at a predetermined position where it is completely taken into the apparatus main body 31. At the same time, only the cartridge body 5 is held in that position. When the disk cartridge L is inserted, the engagement studs 167a, 167 of the release links 165a, 165b
b, and cams 169a and 1 provided on the tray holder 67.
69b, the release links 165a, 16
The lock release winds 185a and 185b of 5b are held in a position where they do not interfere with the disk cartridge 1, but the engagement stud 167a is held in the release holding position.

As the engagement between cam 187b and cams 169a and 169b is released, the biasing force of springs 183a and 183b causes left and right release winds 185a, ! -185b are rotated in the direction in which they approach each other, and the lock release winds 185a, 185b release the engagement between the locking portions 27a, 27b of the cartridge body 5 and the locking claws 13a, 13b of the tray 3, and Hold the cartridge body 5 in that position. In other words, the disk cartridge l taken into the apparatus main body 31 leaves the cartridge main body 5 at a predetermined unlocked holding position, and only the tray 3 on which the disk 7 is placed moves toward the back of the apparatus main body 31. Tray 3 will be pulled out to the position shown in Figure 3.

On the other hand, when the horizontal movement is completed, the interlocking plates 63a, 63b,
The cartridge holder 69, the tray holder 67, and the holding plate 65 are integrally moved vertically or lowered with a predetermined stroke, and the held disc cartridge 1 is also lowered toward the recording/reproducing position. In the process of the disk cartridge 1 descending with a predetermined stroke, the ice cover 7 comes into contact with the turntable 41, thereby moving the disk mounting section 1
1 , is positioned in the center hole 9 , and is further clamped around the center hole 9 by a clamper 179 that descends from above and held on the turntable 41 .

In addition, the position of the tray 3 is regulated in the X, Y, and Z directions by the positioning shaft 43, and the position of the tray 3 is regulated in the Z direction by the tray support plate 45 and the cartridge body 5 by the cartridge body support shaft 47, respectively. Ru. Also,
The tray 3 and the cartridge main body 5 are held in the recording/reproducing position by being pressed by pressing portions 171a, 171b, 173a, 173b of leaf springs 175a, 175b fixed to the cartridge holder 69 and a pressing mechanism (not shown). When recording and playing back.

The disk 7 is rotated together with the turntable 41 by a spindle motor 39, and data is written and read by the optical radar 35 that enters from the drive write/read hole 19 of the tray 3.

[Effects of the Invention] As explained above, the disk cartridge loading device according to the present invention takes out the tray from the cartridge inside the device and records and reproduces information in a separated state.
There is no need to provide extra clearance inside the cartridge, and it is advantageous not only to reduce the size of the disk cartridge but also to reduce its thickness. Furthermore, since the tray is locked inside the cartridge in a housed state on the outside of the apparatus, it is difficult for dust to enter inside the cartridge, and the disk is also prevented from being exposed to the outside.

[Brief explanation of the drawing]

The drawings show an embodiment of the cartridge erroneous insertion prevention mechanism according to the present invention, and FIG. 1 is a perspective view of a disk cartridge;
Fig. 2 is a plan view of the tray in the stored state, Fig. 3 is a plan view of the tray pulled out from the cart and cartridge body to a predetermined position, Fig. 4 is a plan view with the upper half of the loading device removed;
Figure 5 is a front view of the loading device with the front panel removed.
FIG. 6 is a right side view of the loading device, FIG. 7 is a right side view with the fixed guide plate omitted, FIG. 8 is a plan view of the loading device, and FIGS. 9 to 12 are operation explanatory views. 1 is a disk cartridge, 3 is a tray 25 is a cartridge main body, 7 is a disk, 13 is a locking claw, 27 is a locking portion, 31 is a disk cartridge loading device main body, 33
3 is a guide shaft, 35 is an optical head, 37 is a linear motor, 3
9 is a spindle motor, 41 is a turntable, 53 is a front panel, 59 is a fixed guide plate, 61 is a drive plate, 63
is an interlocking plate, 65 is a hold plate, 67 is a tray holder, 6
9 is a cartridge holder, 71 is a power motor, 73 is a motor pinion, 89 is a drive pinion, 107.109
, 136 is a switch, 115 is a transfer pinion, 133 is a switch link, 153 is a chuck link, 165 is a release link, and 79 is a clamper.

Claims (1)

[Claims] 1. A locking pawl is provided on the tray on which the recording medium is placed, and a locking portion that engages with the locking pawl and holds the tray in the stored state is provided on the cartridge body that accommodates the tray in a drawable manner. Additionally, the disk cartridge loading device is provided with a lock release means for releasing the engagement with the lock portion, and a conveyance means for holding and moving the tray, and the lock release means is provided during conveyance of the tray. A disk cartridge loading device characterized in that the tray is pulled out from the cartridge main body by releasing the engagement of the locking pawl with the locking portion.