JPH05101507A - Mechanism for unloading disk cartridge - Google Patents

Abstract

PURPOSE:To enable a manual unloading operation with slight manual power and without using a special tool when a motor for transferring respective loading cam plates is out of operation. CONSTITUTION:A cam piece 27 transmitting the driving power of the motor to a transmission lever 21 engaged with a pair of cam plates 10 and 11 for the lifting operation of a disk cartridge is releasablly engaged with the transmission lever 21 by a cam piece engaging lever 26 capable of sliding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc cartridge ejecting mechanism of a disc cartridge loading device for mounting a disc cartridge comprising a recording disc and a cartridge accommodating the recording disc in a recording and / or reproducing device.

[0002]

2. Description of the Related Art Conventionally, recording disks such as optical disks, magnetic disks, magneto-optical disks, etc. have been proposed. This recording disk has a disk substrate and a signal recording layer formed on the main surface of the disk substrate.

In the recording and / or reproducing apparatus of the recording disk, writing and / or reading of an information signal with respect to the signal recording layer is performed. This recording and / or reproducing apparatus has a rotary drive mechanism for holding and rotating the recording disk and rotating the same, and an optical pickup device for irradiating the signal recording layer with a light beam, and a magnetic field for the signal recording layer. It is configured by including a magnetic head device for applying a voltage.

By the way, such a recording disk is housed in a cartridge and cooperates with this cartridge to form a disk cartridge in order to prevent damages and stains when not in use and facilitate handling. There is something to do. That is, the recording disk that constitutes this disk cartridge is rotatably accommodated in a cartridge that is configured in the shape of a thin housing corresponding to the size of this recording disk, and the recording disk for recording and reproducing formed on the main surface portion of this cartridge. Information signals are written and / or read out through the openings.

A disk cartridge loading device for mounting the disk cartridge in the recording and / or reproducing device has been conventionally proposed. The disc cartridge loading device has a cartridge holder into which the disc cartridge is inserted. The cartridge holder is disposed on the chassis and is supported so as to be movable in the contacting / separating direction with respect to the chassis. The rotation drive mechanism, the optical pickup device, and the like are arranged on the chassis.

In this disc cartridge loading device, the disc cartridge inserted into the cartridge holder is moved in the direction in which the cartridge holder approaches the chassis, whereby the rotation operation by the rotation drive mechanism and the optical operation are performed. It is a so-called loading position where information signals can be written and / or read by a pickup device or the like.

Further, this disc cartridge loading device is provided with a disc cartridge ejecting mechanism. That is, the disc cartridge inserted into the cartridge holder and placed at the loading position is moved by the disc cartridge ejecting mechanism in a direction in which the cartridge holder is separated from the chassis, so that the rotation drive mechanism and the optical pickup device, etc. It is set at a so-called unloading position where it is further separated. The disc cartridge in the unloading position is ready for a so-called eject operation to be taken out from the cartridge holder.

In this disk cartridge loading device, the operation of moving the cartridge holder in the contacting and separating direction with respect to the chassis is performed by a driving force of a driving mechanism having an electric motor or the like and a cam portion linked to the cartridge holder. This is performed by moving the loading slider plate having the.

[0009]

In the disk cartridge ejecting mechanism of the above-described disk cartridge loading device, a drive mechanism for moving the cartridge holder operates due to, for example, a power failure or a failure of the power supply device. When it becomes impossible, the disc cartridge can be brought to the unloading position by a manual operation. This is because even if the drive mechanism becomes inoperable, it is necessary to manually eject only the disc cartridge in order to protect the recording disc.

That is, in the disc cartridge ejecting mechanism, when the driving mechanism is not operating, the engagement of links or the like constituting the driving force transmitting mechanism for transmitting the driving force of the motor to the loading slider plate. Is released and the loading slider plate is moved by a manual operation, the disk cartridge can be brought to the unloading position.

However, since the engagement of the link and the like of the driving force transmission mechanism is performed by bending the link and the like, it is necessary to use a special tool, which is a complicated operation. In addition, a large operating force is required to elastically bend the link or the like, which cannot be easily performed.

Therefore, the present invention has been proposed in view of the above-mentioned circumstances, in which the above-mentioned disc cartridge is manually operated when the drive mechanism for moving the loading slider plate is inoperable. The operation to make the loading position can be done without using a special tool and with a light operating force.
An object of the present invention is to provide a disc cartridge ejecting mechanism capable of performing a smooth manual eject operation.

[0013]

In order to solve the above problems and achieve the above objects, a disk cartridge ejecting mechanism according to the present invention is disposed on a chassis and is supported so as to be movable in the contact and separation directions with respect to the chassis. The cartridge holder is slidably supported in the front-back direction along one side of the cartridge holder and the chassis, and is slid in one direction to move the cartridge holder in the direction close to the chassis and slide in the other direction. A first loading slider plate having a loading cam portion for moving the cartridge holder in a direction away from the chassis, and supported slidably in the front-back direction along the other side of the cartridge holder and the chassis. The cartridge holder is slid in one direction to move the cartridge holder to the chassis. A second loading slider plate having a loading cam portion for moving the cartridge holder in a direction approaching the chassis by moving the cartridge holder in a direction away from the chassis and sliding the other direction, and a substantially central portion by the chassis. Is rotatably supported, one end of which is engaged with the first loading slider plate and the other end of which is engaged with the second loading slider plate, and rotatably attached to the transmission lever. A cam piece having a transmission cam portion, a drive pin that engages with the transmission cam portion and is moved by a drive mechanism, locking means that restricts rotation of the cam piece with respect to the transmission lever, and locking means. And a lock releasing means for releasing the restriction of the rotation of the cam piece with respect to the transmission lever.

[0014]

In the disk cartridge ejecting mechanism according to the present invention, the transmission levers engaged with the first and second loading slider plates for moving the cartridge holder in the contact and separation directions with respect to the chassis by sliding, and the transmission levers. A cam piece having a conductive cam portion engaged with a drive pin rotatably attached to a lever and moved and operated by a drive mechanism is prevented from rotating with each other by a locking means, and with a lock releasing means. Since the restriction of the mutual rotation by the locking means is released, a state in which the driving force of the drive mechanism is transmitted to the transmission lever and a state in which the driving force is not transmitted to the transmission lever, You can switch.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. The disc cartridge ejecting mechanism according to the present invention is applied to a disc cartridge loading device, and the disc cartridge loaded in the recording and / or reproducing device by the disc cartridge loading device is the recording and / or reproducing device. It is a mechanism for taking out more.

The disc cartridge is composed of a recording disc and a cartridge in which the recording disc is rotatably accommodated. This recording disc is
It is a magnetic disk, an optical disk, a magneto-optical disk, or the like, and has a disk substrate and a signal recording layer formed on the main surface of the disk substrate. The cartridge is formed in a thin housing shape. In the main surface of the cartridge, a recording / reproducing opening for exposing a part of the main surface of the recording disk to the outer side over the inner and outer circumferences and chucking for exposing the central portion of the recording disk to the outer side. The opening for use is formed.

As shown in FIG. 1, the disc cartridge loading device has a chassis having a bottom plate 1 and left and right side plates 2 and 3 forming a pair. A recording and / or reproducing mechanism (not shown) of the recording and / or reproducing apparatus configured by using the disc cartridge loading device is disposed on the bottom plate portion 1. The recording / reproducing mechanism includes a rotary drive mechanism for rotationally operating the recording disk of the disk cartridge, an optical pickup device for writing and / or reading an information signal to / from the recording disk rotationally operated by the rotary drive mechanism, and the like. It is configured to have.

A cartridge holder 4 into which the disc cartridge is inserted is provided on the bottom plate 1. The cartridge holder 4 is formed in a substantially thin housing shape, the front side is opened as a cartridge insertion opening 5, and the recording / reproducing opening 6 is formed on the upper surface side.
A recording / reproducing and chucking opening 7 is formed on the lower surface side.

The cartridge holder 4 can be moved in the contacting / separating direction with respect to the bottom plate 1, that is, in the vertical direction. A pair of front side support pins 9 and a pair of rear side support pins 8 project from the left and right side surfaces of the cartridge holder 4, respectively. Each of the support pins 8 and 9 is inserted into a pair of left and right guide slits 22 formed in each of the side plate portions 2 and 3, and is vertically movable. That is, these guide slits 22 are formed on the front side and the rear side of the left side plate portion 2 and on the front side and the rear side of the right side plate portion 3 with the longitudinal direction being a direction perpendicular to the bottom plate portion 1. There is.

A first loading slider plate 10 is arranged at a space between the left side plate 2 and the cartridge holder 4, that is, a position along one side of the cartridge holder. .. In addition, at the space between the right side plate portion 3 and the cartridge holder 4, that is, the position along the other side of the cartridge holder,
A second pair which forms a pair with the first loading slider plate 10
The loading slider plate 11 of FIG. The first loading slider plate 10 has a pair of support slits 15 and 16 on the front side and the rear side, and a pair of front and rear supports provided on the left side plate portion 2 project from the support slits 15 and 16. The pins 14 are correspondingly inserted and supported so as to be slidable in the direction along the bottom plate portion 1, that is, in the front-rear direction. In addition, the second loading slider plate 11 is also the first loading slider plate 1
Similarly to 0, it has a pair of support slits on the front side and the rear side, and through these support slits, a pair of front and rear support pins projecting from the right side plate portion 3 are correspondingly inserted, and It is slidably supported by.

Each of the loading slider plates 10 and 11
The front side support pins 9 and the rear side support pins 8 are correspondingly inserted into the front side and rear side loading cam slits 13 and 12 serving as loading cam portions.
Are formed. Each of the loading cam slits 1 formed in the first loading cam slit 10
3, 12 are the bottom plate portions 1 from the front side toward the rear side.
Is formed so as to be inclined in the direction close to. Each of the loading cam slits formed in the second loading cam slit 11 is formed so as to be inclined from the rear side toward the front side in the direction approaching the bottom plate portion 1.

That is, in this disc loading apparatus, as shown in FIG. 4, the first loading slider plate 10 is moved in one direction, that is, toward the front side as shown by an arrow G in FIG. By moving the second loading slider plate 11 in the other direction, that is, in the rearward direction, the cartridge holder 4 is operated to move downward to approach the bottom plate portion 1 shown by an arrow H in FIG. .. Further, in this disc loading device, as shown in FIG. 5, the first loading slider plate 10 is moved in the other direction, that is, to the rear side indicated by the arrow K in FIG. The loading slider plate 11 moves in one direction, that is,
By moving the cartridge holder 4 to the front side, the cartridge holder 4 is moved to the upper side separated from the bottom plate portion 1 shown by an arrow L in FIG.

The first loading slider plate 10
Is elastically biased in the rearward direction by a first tension coil spring 18 stretched between a spring locking claw 17 provided on the rear side and the chassis, as shown by an arrow A in FIG. ing. The second loading slider plate 11 is elastically biased in the front direction by a tension coil spring (not shown).

As shown in FIGS. 7 and 8, engaging projections 19 and 19 are provided on the front end sides of the first and second loading slider plates 10 and 11, respectively. These engaging protrusions 19 and 19 have engaging holes 20 and
20 are provided. A transmission lever 21 is arranged on the front end portion of the bottom plate portion 1. The transmission lever 21 is rotatably supported at the center with respect to the bottom plate 1 via a support shaft 23, has a left side engaging pin 24 on the left end side, and has a right side engaging pin 25 on the right side. Have The left engagement pin 24 is inserted and engaged with the engagement hole 20 of the engagement protrusion 19 of the first loading slider plate 10. The right side engagement pin 25 is inserted and engaged with the engagement hole 20 of the engagement protrusion 19 of the second loading slider plate 11.

Therefore, when the transmission lever 21 is rotated around the support shaft 23, as shown by arrows R and S in FIG. The moving operation is performed in the front-rear direction so that the directions are opposite to each other. That is, as shown in FIGS. 7 and 8,
When the first loading slider plate 10 is moved forward, the second loading slider plate 11 is moved.
Is moved to the rear side, and when the first loading slider plate 10 is moved to the rear side, the second loading slider plate 11 is moved to the front side.

A cam piece 27 is rotatably attached via a support shaft 77 to the upper surface of the right end portion of the transmission lever 21. The cam piece 27 is provided with a substantially linear cam slit 79 serving as a conductive cam portion. Further, on the cam piece 27, a locked pin 76, which constitutes a locking means for restricting the rotation of the cam piece 27 with respect to the transmission lever 21, is provided in a protruding manner.

On the upper surface of the transmission lever 21, a cam piece locking lever 26 constituting the locking means is provided.
It is mounted slidably. The cam piece locking lever 26 has elongated holes 72, 73.
3 is a guide pin 7 projecting from the transmission lever 21.
By correspondingly inserting 0 and 71, the transmission lever 21 can be slid in the longitudinal direction of the transmission lever 21. This cam piece locking lever 26 is
As shown in FIG. 10, it has a spring locking piece 74. A second tension coil spring 28 that constitutes the locking means is stretched between the spring locking piece 74 and the support shaft 23. The cam piece locking lever 26 is elastically biased toward the right end side of the transmission lever 21 by the second tension coil spring 28 as shown by an arrow Q in FIG. 7. A locking recess 75 is formed at the right end of the cam piece locking lever 26. The cam locking lever 26 prevents the cam plate 27 from rotating with respect to the transmission lever 21 by fitting the locked pin 76 into the locking recess 75.

In the cam slit 79 of the cam piece 27,
A drive pin 78 projecting from the main surface of the final gear 30 of the drive mechanism 31 having an electric motor is inserted and engaged. The drive mechanism 31 is configured to transmit the driving force of the electric motor 31 via a speed reducer (not shown) or the like to rotate the final gear 30. The driving mechanism 31 is supported by the bottom plate portion 1 and is arranged above the right side portion of the transmission lever 21. The transmission lever 21 is indicated by an arrow T in FIGS.
As shown in, when the final gear 30 is rotated,
Since the drive pin 78 moves along an arcuate locus, it is rotated around the support shaft 23.

That is, in this disc loading apparatus, the final gear 30 of the drive mechanism 31 is rotated to move the cartridge holder 4 in the direction of approaching the bottom plate 1, and
An unloading operation of moving the cartridge holder 4 in a direction away from the bottom plate 1 can be performed.

On the transmission lever 21, the rotation of the cam piece 27 with respect to the transmission lever 21 by the cam piece engagement lever 26 is restricted in correspondence with the left end of the cam piece engagement lever 26. A manual unloading lever 29 serving as a lock releasing means for releasing the lock is provided. This manual unloading lever 29 is provided on the support shaft 8.
It is rotatably supported via the transmission lever 21 via 0. This manual unloading lever 29
Has an engaging hole 81, and the engaging pin 82 provided on the cam piece locking lever 26 is inserted into the engaging hole 81. Further, the manual unloading lever 29 is provided with a pressing operation portion 83. As shown in FIG. 9, the manual unloading lever 29 causes the cam piece locking lever 26 to move to the second position when the pressing operation portion 83 is pressed and rotated with respect to the transmission lever 21.
The transmission lever 21 is moved toward the left end side against the biasing force of the tension coil spring 28. The cam piece locking lever 26, which has been moved to the left end side of the transmission lever 21, has the locking recess 75 and the cam piece 2.
The engagement with the locked pin 76 of 7 is released.

Then, in the cartridge holder 4,
A cartridge lock mechanism is provided. The cartridge lock mechanism includes a cartridge lock slider 3 mounted on the upper surface of the cartridge holder 4 so as to be slidable in the front-rear direction with respect to the cartridge holder 4.
It is configured to have 5. As shown in FIG. 6, the cartridge lock slider 35 has a pair of front and rear support slits 36 and 37.
6 and 37, the support pins 32 and 33 forming a pair on the front side and the rear side, which project from the upper surface of the cartridge holder 4, are inserted and supported. The cartridge lock slider 35 has a spring locking piece 45, and a third tension coil spring 46 stretched between the spring locking piece 45 and the front support pin 33 causes an arrow in FIG. As indicated by B, it is elastically biased in the frontward direction.

On the left side of the front portion of the cartridge lock slider 35, an engaging projection 39 having an engaging slit 40 is provided so as to project. A cartridge lock lever 64 is attached to the front side of the left side surface of the cartridge holder 4 with a substantially central portion rotatably supported via a support shaft 65. The cartridge lock lever 64 has an engagement pin 66 on the upper end side. The engagement pin 66 is inserted and engaged with the engagement slit 40. Therefore, when the cartridge lock slider 35 is slid in the front-rear direction, the cartridge lock lever 64 has the cartridge holder 4
Is rotated with respect to. A cartridge lock pin 67 is planted on the lower end side of the cartridge lock lever 64. The cartridge lock pin 67 is for engaging with a locked groove provided in the cartridge of the disk cartridge inserted into the cartridge holder 4.

The cartridge lock slider 3 is also used.
On the upper surface of 5, the cartridge lock slider 35
The cartridge detection slider 41 is arranged so as to overlap with. This cartridge detection slider 41
Has a pair of front and rear support slits 43, 42,
These support slits 43, 42 are provided with the support pins 32, 3 on the front side and the rear side of the upper surface of the cartridge holder 4.
3 is inserted and supported so as to be slidable in the front-rear direction. Then, the cartridge lock slider 35
Has a spring locking piece 47, and a fourth tension coil spring 4 stretched between the spring locking piece 47 and a spring locking piece 49 provided on the cartridge lock slider 35.
8, the cartridge lock slider 35 is elastically biased toward the front side, as indicated by an arrow B in FIG.

On the rear end side of the cartridge detecting slider 41, a cartridge detecting claw 44 is provided so as to hang down. The cartridge detecting claw 44 has a through hole 3 formed in a rear side portion of the upper plate portion of the cartridge holder 4.
It is inserted into the inside of the cartridge holder 4 via 4. Further, a second contact protrusion 84 for contacting the first contact protrusion 38 protruding from the front edge of the cartridge lock slider 35 is provided on the front edge of the cartridge detection slider 41. ing.

When the disc cartridge is inserted into the cartridge holder 4, the disc cartridge comes into contact with the cartridge detecting claw 44 as shown in FIG. It is moved to the rear side indicated by the middle arrow E. Then, the cartridge detection slider 41 pulls the cartridge lock slider 35 rearward via the biasing force of the fourth tension coil spring 48. The cartridge lock slider 35 is the third
It is moved to the rear side against the biasing force of the tension coil spring 46. Then, the cartridge lock lever 6
As shown by arrow F in FIG. 3, 4 is rotated to a rotation position where the cartridge lock pin 67 is positioned in front of the cartridge insertion hole 5.

At the position of the left side plate portion 2 facing the front side portion of the upper surface portion of the cartridge holder 4,
A lock release control plate 50 serving as a lock release control member is attached. The lock release control plate 50 is slid in the front-rear direction and rotated around the front control plate support pin 51 by front and rear control plate support pins 51 and 52 provided in pairs on the left side plate portion 2. It is possible and supported. That is, the unlock control plate 50 includes a front support hole 53 into which the front control plate support pin 51 is inserted and engaged, and a rear support hole 54 into which the rear control plate support pin 52 is inserted and engaged. Are formed. The front side support hole 53 is a slit-shaped hole having a width corresponding to the diameter of the front side control plate support pin 51. The rear side support hole 54 is a slit-shaped hole having a width corresponding to the diameter of the rear side control plate support pin 52, but is larger than the diameter of the rear side control plate support pin 52 in the front side portion. Widened to be wider.

The lock release control plate 50 is provided with a lock release cam portion 55a. The unlocking cam portion 55a is formed in a protruding piece shape protruding toward the inner side of the through hole 55 at the upper edge portion of the through hole 55 formed in the rear side portion of the unlocking control plate 50. Has been formed.

As shown in FIG. 2, the unlock control plate 50 is an elastic member stretched between a spring locking piece 56 formed on the upper front side and the left side plate 2. As shown by an arrow C in FIG. 2, the lock release control plate return spring 57 elastically urges the rearward direction, and
As indicated by the middle arrow D, the rear side portion is urged to rotate about the front control plate support pin 51 in a direction in which the rear side is defined as the lower side,
It is positioned at the initial position. A lock releasing piece 63 is provided below the lock releasing control plate 50. The lock release piece 63 is located on the rear side of the engagement pin 66 provided on the cartridge lock lever 64.

On the side of the left side plate 2 facing the cartridge holder 4, a rotary link 58 is rotatably supported and attached via a support shaft 59. The rotation link 58 is formed as a substantially linear link, and the support shaft 59 is provided in a support hole 68 provided at a substantially central portion.
Is inserted and supported. A first engagement pin 60 serving as a first engagement portion is provided on one end side of the rotation link 58.
It is provided so as to project toward the cartridge holder 4 side.
A second engagement pin 62, which serves as a second engagement portion, is provided on the other end of the rotary link 58 so as to project toward the cartridge holder 4 side.

The first engaging pin 60 has a rotary operation hole 61 formed in the first loading slider plate 10.
Is engaged with. In addition, the second engagement pin 62
Engages with the through hole 55 of the unlock control plate 50 and faces the unlock cam 55a.

In the disc loading apparatus according to the present invention constructed as described above, as shown in FIG.
In the unloading state in which the cartridge holder 4 is separated from the bottom plate portion 1, the disc cartridge can be inserted into the cartridge holder 4 through the cartridge insertion hole 5.

Then, as shown in FIG. 3, when the disc cartridge 101 is inserted into the cartridge holder 4, the disc cartridge 101, as shown by an arrow E in FIG.
The cartridge detection lever 41 is moved to the rear side via. Then, the lock lever 64 is rotated as shown by an arrow F in FIG. 3 to fit the lock pin 67 into the locked groove 102 formed in the side surface portion of the cartridge of the disk cartridge 101. At this time, the third and fourth extension coil springs 46, 4
A state in which the urging force for ejecting the disc cartridge 101 to the front side via the cartridge detection lever 41 by 8 is offset by the abutting engagement between the inner surface portion of the locked groove 102 and the lock pin 67. Next to
The disc cartridge 101 is locked with respect to the cartridge holder 4.

Next, the drive mechanism 31 is operated, and as shown in FIG. 4, the first loading slider plate 1 is loaded.
When 0 is moved to the front side indicated by an arrow G in FIG. 4 via the transmission lever 21, a loading operation is performed. That is, at this time, the cartridge holder 4
As shown by an arrow H in FIG. 4, the disk cartridge 101, which is moved and locked downward, is set to a so-called loading position. The recording disk of the disk cartridge 101 at the loading position may be rotated by the recording / reproducing mechanism arranged on the bottom plate 1 and may be written and / or read with an information signal. It is possible.

Further, during the loading operation, the rotation link 58 causes the first engagement pin 60 to move forward as shown by an arrow I in FIG. The pin 62 is rotated in the direction in which the pin 62 moves rearward. At this time, as the lock release control plate 50 moves from the front side to the rear side of the lock release cam portion 55a of the second engagement pin 62, as shown by an arrow J in FIG. After the lock release cam portion 55a is rotated in the direction of moving the rear side portion upward until the lock release cam portion 55a is out of the movement locus of the second engagement pin 62, the lock release control plate return spring 57 biases the lock release cam portion 55a. It is returned to the initial position.

Then, in order to perform the unloading operation for separating the loaded disk cartridge 101 from the recording / reproducing mechanism on the bottom plate portion 1, the driving mechanism 31 is operated, and as shown in FIG. First
The loading slider plate 10 of the transmission lever 21
5 is operated to move to the rear side indicated by arrow K in FIG. Then, the cartridge holder 4 is moved upward as shown by an arrow L in FIG. 5 to set the locked disk cartridge 101 to a so-called unloading position.

The unloading operation can be performed manually when the drive mechanism 31 is inoperable. In this unloading operation by manual operation, as shown in FIG. 9, the pressing operation portion 83 is pressed from the front side as shown by an arrow U in FIG. 9, and the manual unloading lever 29 is transmitted. This is performed by rotating the lever 21. When the manual unloading lever 29 is rotated with respect to the transmission lever 21, as shown by an arrow X in FIG.
Is slid to the left end side, and the engagement between the engagement recess 75 of the cam piece engagement lever 26 and the engaged pin 76 of the cam piece 27 is released. At this time, the transmission lever 21 can be rotated around the support shaft 23 regardless of the position of the drive pin 78.

The operating force for pressing the pressing operation portion 83 is
When the rotation of the manual unloading lever 29 with respect to the transmission lever 21 is completed, it becomes a force for rotating the transmission lever 21. That is, the transmission lever 21 slides the first loading slider plate 10 rearward as shown by arrow V in FIG. 9 and slides the second loading slider plate 11 forward as shown by arrow W in FIG. It is rotated in the direction of making it move. The unloading operation is performed by sliding the loading slider plates 10 and 11.

In this disc cartridge ejecting mechanism, the first loading slider plate 10 is elastically biased rearward by the first tension coil spring 18, and the second loading slider plate 11 is moved.
Is elastically biased in the frontward direction by a tension coil spring (not shown), so that the operation force required for the manual unloading operation is lightened.

After the manual unloading operation is performed, the final gear 30 is driven by the drive mechanism 31.
However, when it is rotated as indicated by an arrow T in FIG. 9, the locked pin 76 contacts the right end portion of the cam piece locking lever 26 to move the cam piece locking lever 26 to the second position. Of the transmission lever 2 against the urging force of the tension coil spring 28 of
Slide 1 toward the left end. Then, when the locked pin 76 reaches a position facing the locking recess 75,
The cam piece locking lever 26 is returned to the initial position by the urging force of the second tension coil spring 28, and the locked pin 76 and the locking recess 75 are engaged with each other.

During the unloading operation, the rotary link 58 causes the first engaging pin 60 to move rearward as shown by an arrow M in FIG. The dowel pin 62 is rotated in the direction in which it moves to the front side. At this time, as the lock release control plate 50 moves from the rear side of the lock release cam portion 55a of the second engagement pin 62 toward the front side, an arrow N in FIG.
As shown by, the lock release cam portion 55a is pressed by the second engagement pin 62 and is slid forward. The lock release control plate 50 slid forward is
The lock release piece 63 presses the engagement pin 66 of the cartridge lock lever 64, and the cartridge lock lever 64 is rotated to the initial position as shown by an arrow O in FIG. Release the lock.

As described above, the disk cartridge 101 which is in the unloading position and unlocked by the cartridge lock lever 64 is
It is possible to perform a so-called eject operation in which the cartridge holder 4 is discharged to the front side.

In the lock release control plate 50, the lock release cam portion 55a is out of the movement locus of the second engagement pin 62, and the lock release cam portion 55a and the second engagement pin 62 are moved. When the abutting engagement with
As indicated by the middle arrow P, the lock release control plate return spring 57 returns the initial position shown in FIG.

[0053]

As described above, in the disc cartridge ejecting mechanism according to the present invention, the first and second loading slider plates that move the cartridge holder in the contacting and separating directions with respect to the chassis by sliding are engaged. The rotation of the transmission lever and the cam piece having a transmission cam portion that is rotatably attached to the transmission lever and is engaged with a drive pin that is moved and operated by a drive mechanism are restricted from each other by locking means. At the same time, the locking release means releases the restriction of the mutual rotation by the locking means.

Therefore, in this disc cartridge ejection mechanism, the state in which the drive force of the drive mechanism is transmitted to the transmission lever and the state in which the drive force is not transmitted to the transmission lever are the locking means and the It can be easily switched by the unlocking means. In the disc cartridge ejecting mechanism, when the driving force of the driving mechanism is not transmitted to the transmission lever, the loading slider plates are manually slid through the transmission lever to slide the disc cartridge. Can be easily set to the unloading position.

That is, according to the present invention, a special tool is used for manually operating the disk cartridge to the unloading position when the drive mechanism for moving the loading slider plate is inoperable. In addition, it is possible to provide a disk cartridge ejecting mechanism that is capable of performing a smooth manual ejecting operation without any operation and with a light operating force.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a disc cartridge loading device configured using a disc cartridge ejection mechanism according to the present invention.

FIG. 2 is an enlarged side view showing the configuration of the disc cartridge loading device.

FIG. 3 is an enlarged side view showing a state in which the disc cartridge is locked in the disc cartridge loading device.

FIG. 4 is an enlarged side view showing a state where the loading operation is completed in the disc cartridge loading device.

FIG. 5 is an enlarged side view showing a state where the disc cartridge loading device is unlocked from the disc cartridge during an unloading operation.

FIG. 6 is an enlarged plan view showing a configuration of a main part of the disc cartridge loading device.

FIG. 7 is an enlarged plan view showing the configuration of the disc cartridge ejecting mechanism.

FIG. 8 is an enlarged plan view showing a state when the loading operation of the disc cartridge ejecting mechanism is completed.

FIG. 9 is an enlarged plan view showing a state where a manual unloading operation is performed in the disc cartridge ejecting mechanism.

FIG. 10 is an enlarged front view showing the configuration of the disc cartridge loading device.

[Explanation of symbols]

 1 ・ ・ ・ ・ ・ ・ ・ ・ Bottom plate 2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Left side plate 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ Right side plate 4 ・ ・・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Cartridge holder 10 ・ ・ ・ ・ ・ ・ ・ ・ ・ First loading slider plate 11 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Second loading slider plate 12 ---. Rear loading cam slit 13 .--- Front loading cam slit 21 ---. Transmission Lever 26 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Cam piece locking lever 27 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Cam piece 28 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Second Tension coil spring 29 .................. Manual unloading lever 31 .................. Drive mechanism 78 .. ... drive pin 79 ............ cam slit 101 ............ disk cartridge

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[Procedure amendment]

[Submission date] February 29, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction content]

Then, in the cartridge holder 4,
A cartridge lock mechanism is provided. The cartridge lock mechanism includes a cartridge lock slider 3 mounted on the upper surface of the cartridge holder 4 so as to be slidable in the front-rear direction with respect to the cartridge holder 4.
It is configured to have 5. As shown in FIG. 6, the cartridge lock slider 35 has a pair of front and rear support slits 36 and 37.
6 and 37, the support pins 32 and 33 forming a pair on the front side and the rear side, which project from the upper surface of the cartridge holder 4, are inserted and supported. The cartridge lock slider 35 is the cartridge detection slider 4 provided on the upper surface of the cartridge lock slider 35.
1 and the spring support piece 45 projectingly provided on the front support pin 3
3, a third tension coil spring 46 is stretched between the cartridge detection slider 3 and the cartridge 3 and elastically biases the cartridge detection slider in the frontward direction as indicated by an arrow B in FIG.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0032

[Correction method] Change

[Correction content]

Engaging projections 39 having engaging slits 40 are provided on both sides of the front portion of the cartridge lock slider 35. A cartridge lock lever 64 is attached to the front side of the left side surface of the cartridge holder 4 with a substantially central portion rotatably supported via a support shaft 65. The cartridge lock lever 64 has an engagement pin 66 on the upper end side. The engagement pin 66 is inserted and engaged with the engagement slit 40. Therefore, the cartridge lock lever 64 is rotated with respect to the cartridge holder 4 when the cartridge lock slider 35 is slid in the front-rear direction. A cartridge lock pin 67 is planted on the lower end side of the cartridge lock lever 64. This cartridge lock pin 67
It is for engaging with a locked groove provided in the cartridge of the disk cartridge inserted into the cartridge holder 4.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0033

[Correction method] Change

[Correction content]

The cartridge lock slider 3 is also used.
The cartridge detection slider 41 arranged on the upper surface of the cartridge 5 so as to overlap the cartridge lock slider 35 has a pair of front and rear support slits 43 and 42. The cartridge detecting slider 41 is slidably supported in the front-rear direction by inserting the front and rear support pins 32 and 33 of the upper surface of the cartridge holder 4 into the support slits 43 and 42. The cartridge detection slider 41 has a spring locking piece 47. The spring locking piece 47 and the spring locking piece 49 provided on the cartridge lock slider 35.
A fourth tension coil spring 48 is stretched between and. The fourth tension coil spring 48 elastically biases the cartridge lock slider 35 with respect to the cartridge detection slider 41 in the rearward direction, which is the direction of the arrow B in FIG.

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0035

[Correction method] Change

[Correction content]

When the disc cartridge is inserted into the cartridge holder 4, the disc cartridge comes into contact with the cartridge detecting claw 44 as shown in FIG. It is moved to the rear side indicated by the middle arrow E. Then, the cartridge detection slider 41 pulls the cartridge lock slider 35 rearward via the biasing force of the fourth tension coil spring 48. The cartridge detection slider 41 is moved rearward against the biasing force of the third tension coil spring 46. Then, the cartridge lock lever 64
Is rotated to a rotation position where the cartridge lock pin 67 is positioned in front of the cartridge insertion hole 5, as indicated by an arrow F in FIG.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0050

[Correction method] Change

[Correction content]

During the unloading operation, the rotary link 58 causes the first engaging pin 60 to move rearward as shown by an arrow M in FIG. The dowel pin 62 is rotated in the direction in which it moves to the front side. At this time, as the lock release control plate 50 moves from the rear side of the lock release cam portion 55a of the second engagement pin 62 toward the front side, an arrow N in FIG.
As shown by, the lock release cam portion 55a is pressed by the second engagement pin 62 and is slid forward. The lock release control plate 50 slid forward is
The protrusion 39 of the cartridge lock slider 35 is pressed by the lock release piece 63, and the cartridge lock lever 64 is rotated to the initial position, as shown by an arrow O in FIG. 5, to lock the disk cartridge 101. To release.

[Procedure correction 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure Amendment 7]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

Claims (1)

[Claims] 1. A cartridge holder disposed on a chassis and movably supported in a contacting / separating direction with respect to the chassis. The cartridge holder is supported slidably in a front-rear direction along one side of the cartridge holder and in one direction. By doing so, the first loading slider having a loading cam portion for moving and operating the cartridge holder in a direction approaching the chassis and sliding in the other direction for moving the cartridge holder in a direction away from the chassis. The plate and the cartridge holder are slidably supported in the front-rear direction along the other side of the cartridge holder and the chassis, and are slid in one direction to move the cartridge holder in a direction away from the chassis and operate in the other direction. By sliding the cartridge holder to the chassis A second loading slider plate having a loading cam portion for moving operation in a direction coming close, is rotatably supported a substantially central portion by the chassis,
A transmission lever having one end side engaged with the first loading slider plate and the other end side engaged with the second loading slider plate, and a transmission cam portion rotatably attached to the transmission lever. A cam piece, a drive pin that engages with the transmission cam portion and is moved by a drive mechanism, locking means that restricts rotation of the cam piece with respect to the transmission lever, and the cam piece by the locking means. And a lock releasing means for releasing the restriction of the rotation of the transmission lever.