JPH073485Y2 - Disk-shaped loading device - Google Patents

Description

[Detailed Description of the Invention] Overview When it is detected that a disc-shaped body such as a compact disc has been inserted through an insertion opening, a conveying means such as a roller is activated to guide the disc-shaped body to a predetermined loading position and convey it. In the loading device, the disc-shaped body is inserted near the insertion port in order to perform preliminary centering prior to centering the disc-shaped body during conveyance by the conveying means and to detect insertion of the disc-shaped body. A relay lever is provided that is displaceably supported in a direction intersecting with the direction, and has first and second through holes formed near both ends in the intersecting direction. A pair of first and second guide levers are provided near both ends of the insertion opening. Each of the first and second guide levers has a guide piece formed at one end on the upstream side in the insertion direction, which abuts on the outer peripheral edge of the disk-shaped body. A pivotal stop piece that gently engages with the first through hole is erected on the end portion, and the first guide lever is supported near the space between the pivotal stop piece and the guide piece so that the first guide lever can swing. On the other hand, the other end of the second guide lever on the downstream side in the insertion direction is swingably supported, and the second guide hole is provided between the other end and the guide piece. A pivoting piece that gently engages is erected. The first and second guide levers are close to each other at one end side by a spring member so that the guide pieces are spaced apart from each other by a distance smaller than the minimum outer diameter of a plurality of types of disc-shaped bodies to be inserted. Biased in the direction.

Accordingly, the disc-shaped body inserted through the insertion port is first subjected to preliminary centering by the pair of guide pieces before the centering by the conveying means. With the insertion of the disk-shaped body, one end portions of the first and second guide levers move away from each other, and the relay lever is in one of the intersecting directions regardless of the pivoting stop piece of either guide lever. It is displaced only in the direction so that the detecting means can detect the insertion of the disk-shaped body and activate the conveying means as described above.

In this manner, the small-diameter disk-shaped bodies are guided while being centered by the first and second guide levers that are spring-biased in the direction in which they approach each other, and the first and second large-diameter disks are guided. Since the displacement of the guide lever is allowed by the free hole, it is possible to set the swing range of these first and second guide pieces to a large range from a small-diameter disk to a large-diameter disk, and to perform centering reliably. A structure for performing such guidance can be realized with a simple structure.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk-shaped loading device for loading a disk-shaped body inserted from an insertion opening into a machine body and positioning it on a turntable.

2. Description of the Related Art In recent years, a compact disk with a diameter of 12 cm (hereinafter referred to as "disk") is also being used with a disk with a diameter of 8 cm. Therefore, a disk reproducing device that can cope with disks with different diameters is available. It has been demanded. In the disk reproducing device, there are a tray system in which a disk is placed on a tray and is guided to a turntable, and a slot-in system in which the disk is directly inserted into an insertion opening of the disk reproducing device without using the tray.

In the slot-in type disc reproducing apparatus, when a disc is inserted into the insertion opening, a driving roller or the like operates to load the disc, and the disc is automatically positioned on the turntable. Therefore, an insertion detection mechanism for detecting the insertion of the disk is provided near the insertion opening.

Further, as described above, a plurality of types of disks having different diameters are positioned on the same turntable. Therefore, in the case where the discs with different diameters are randomly inserted from the insertion opening, a complicated mechanism is required for the configuration of positioning each disc inserted in the body on the turntable. I will end up. Therefore, even if a disk of any diameter is inserted near the insertion port in advance,
A regulating mechanism for performing preliminary centering is provided in front of the positioning mechanism.

FIG. 11 shows the insertion opening 3 in the conventional disk reproducing device 2.
The structure around is shown. A plurality of types of discs 1S and 1L having different diameters are inserted from the insertion opening 3 of the disc reproducing device 2 along the insertion direction 4 toward the inside of the machine equipped with a turntable (not shown). The disk 1S has a diameter of 8 cm, for example, and the disk 1L has a diameter of 12 cm, for example.

In the vicinity of the insertion port 3, a pivot pin 5 standing upright from an upper wall (not shown) is fitted in a guide groove 6 so that the pivot pin 5 is slidable in a direction perpendicular to the insertion direction 4. A relay lever 7 having a longitudinal direction at right angles is provided, and guide levers 9a, 9b pivotally fixed to guide grooves 8 formed along the insertion direction 4 are provided at both longitudinal ends of the relay lever 7. . One guide lever 9a is rotatably pivoted to the upper wall portion as a fulcrum 14a in the vicinity of the central portion in the longitudinal direction, and one guide lever 9a is provided at the other longitudinal end opposite to one longitudinal end pivotally secured to the relay lever 7. A guide pin 10a is erected downward. The other guide lever 9b is pivotally fixed to the relay lever 7 near the center in the longitudinal direction, and one end in the longitudinal direction is pivotally fixed to the upper wall portion as a fulcrum 14b. In addition, a guide pin 10b is erected downward at the other end in the longitudinal direction.

The relay lever 7 is spring-biased toward the one guide lever 9a side along the longitudinal direction, so that the pair of guide pins 10a and 10b are held at a predetermined constant interval. At this time, the protruding piece formed by protruding from the relay lever 7
11 presses the pressing piece 13 of the insertion detector 12. The distance between the guide pins 10a and 10b is set shorter than the diameter of the small disk 1S.

When the disks 1S, 1L are inserted from the insertion opening 3 toward the above-described structure, the outer peripheral edges of the inserted disks 1S, 1L press the pair of guide pins 10a, 10b. Therefore, each guide lever 9a,
9b angularly displaces the guide pins 10a, 10b around the fulcrums 14a, 14b so as to spread them outward in the radial direction of the disk, and slides the relay lever 7 toward the other guide lever 9b. Therefore, the protruding piece 11 releases the pressing of the insertion detector 12 against the pressing piece 13, and thus the insertion of the disks 1S and 1L is detected.

However, in the above-mentioned configuration, even if the outer peripheral edge of the inserted disk 1S, 1L abuts only the guide pin of one of the guide levers due to the shape of the guide groove 8, the relay lever Both guide levers 9a, 9 according to sliding of 7
b is angularly displaced. Therefore, although the insertion of the disk can be detected, when the disk 1S is inserted in contact with only one of the guide pins, the other guide pin does not contact with the disk 1S. Therefore, the above-mentioned preliminary centering cannot be realized.
In order to prevent such a problem, the guide lever is adjusted so that the space between the guide pins becomes narrow enough to match the disk 1S.
If 9a and 9b are arranged, it will not be possible to insert a large-diameter disk 1L.

FIG. 12 is a diagram showing another configuration near the conventional insertion port 3. In FIG. 12, parts corresponding to those in FIG. 11 are designated by the same reference numerals. As another conventional configuration, in the vicinity of the insertion port 3, two sliding levers 20 and 21 extending in a direction perpendicular to the insertion direction 4 as a longitudinal direction are partially overlapped. Each of the sliding levers 20 and 21 is slidable along the longitudinal direction by guiding the pivotal pins 22 and 23 standing upright from an upper wall portion (not shown) in the guide grooves 24 and 25. One slide lever 20 is formed with a continuous two-stage slit 27 via an inclined slit 27a that is inclined along the direction opposite to the insertion direction 4 toward the other slide lever 21 side. The sliding lever 21 is formed with a continuous two-step slit 26 through an inclined slit 26a along the direction opposite to the inserting direction 4 toward the one sliding lever 20 side, and each two-step slit 26 is formed. The slits 26b and 27b on the inner side of the airframe of 27 are overlapped.

As described above, between the slits on the inner side of the aircraft, which are overlapping,
A locking pin 30, which is erected downward from the other longitudinal end of a locking lever 29, which is rotatably pivoted at one longitudinal end as a fulcrum 28, is fitted to the one sliding lever 20. The sliding levers 20 and 21 are spring-biased toward the opposing sliding levers, and guide pins 31a are provided downward near the non-overlapping ends of the sliding levers 20 and 21. , 31b is erected. The distance between the guide pins 31a and 31b is selected to be, for example, about 10 cm. Further, for example, the protruding piece 32 formed by protruding from the other sliding lever 21 presses the pressing piece 34 of the insertion detector 33 provided in the vicinity.

When the disk 1L is inserted into the above structure and the outer peripheral edge of the disk 1L abuts the guide pins 31a, 31b, the sliding levers 20,
21 slides away from each other, and each two-stage slit 26,2
Locking pin that was fitted to slits 26b and 27b on the inside of 7
As the 30 passes through the slanted slits 26a and 27a, respectively, it turns around the fulcrum 28 and fits over the outer slits 26c and 27c of the fuselage. Therefore, along with the insertion of the disk 1L, the sliding levers 20 and 21 slide in the directions further apart from each other, and as a result, the guide pins 31a and 31b are moved to the disk 1
It is expanded outward in the radial direction of L. At this time, the protruding piece 32
Releases the pressing of the pressing piece 34, and the insertion of the disk 1L is detected.

On the other hand, when the outer peripheral edge of the inserted disk 1L abuts only one of the guide pins, the engaging pin 30 of the engaging lever 29 does not abut. It cannot contact the inner wall surface of the step slit and turn, and as a result, neither of the guide pins 31a and 31b can be expanded outward in the radial direction of the disk 1L. That is, the disk 1L cannot be inserted into the inside of the machine unless it is inserted along the approximate center of the guide pins 31a, 31b so that the disk 1L surely contacts both guide pins 31a, 31b. . Therefore, centering of the disk 1L inserted through such a configuration is preliminarily performed as described above.

As described above, although the above-described configuration is a mechanism intended to regulate the disk 1L, the configuration is relatively complicated and the number of parts is large.

Further, in the above-mentioned configuration, the distance between the guide pins 31a and 31b is set larger than the diameter of the small disk 1S,
When inserting the disk 1S, which guide pin
It may be inserted without abutting on 31a and 31b, and it cannot be inserted while abutting on both guide pins 31a and 31b. Therefore, it may not be possible to detect the insertion of the small disk 1S, and further, centering cannot be preliminarily performed.

Therefore, an object of the present invention is to provide a disk-shaped loading device that can detect the insertion of a plurality of types of disk-shaped bodies and perform preliminary centering with a simple configuration, and can load the disk-shaped body into the body. To provide.

Means for Solving the Problems The present invention detects the insertion of a disk-shaped body into an insertion opening,
In a loading device for a disk-shaped body that starts the transfer means and transfers the disk-shaped body to a predetermined loading position, in the vicinity of the insertion port, the disk-shaped body is supported movably in a direction intersecting the insertion direction of the disk-shaped body, A relay lever having first and second loose holes formed near both ends in the intersecting direction, and first and second levers formed near the opposite ends of the insertion port and extending in the insertion direction of the disk-shaped body, respectively. Regarding the second guide lever, a guide piece that abuts an outer peripheral edge portion of the disk-shaped body is formed at one end portion on the upstream side in the insertion direction of the first and second guide levers, and the first guide lever is , A pivotal stop piece that gently engages with the first through hole is erected on the other end portion on the downstream side in the insertion direction, and the pivotal stop piece and the guide piece are swingably supported, and Insert the second guide lever The other end on the downstream side is swingably supported, and a pivoting piece gently engaged with the second play hole is erected between the other end and the guide piece. The first and second guide levers and the first and second guide levers are mutually connected so that the distance between the first and second guide levers is shorter than the minimum outer diameter of the plurality of types of disc-shaped bodies to be inserted. A disk-shaped body, comprising: a spring member that urges in a proximity direction; and a detection unit that displacement-drives an actuating piece by the relay lever and detects displacement of the relay lever in the intersecting direction. It is a loading device.

According to the present invention, when it is detected that a disc-shaped body such as a compact disc has been inserted through the insertion opening, a conveying means such as a roller is activated to regenerate the disc-shaped body at a predetermined loading position. In a loading device that guides and conveys the disk-shaped body, prior to centering during the transportation of the disk-shaped body by the transporting means, preliminary centering is performed and the insertion of the disk-shaped body is detected. A second guide lever, a relay lever, a spring member, and detection means are provided.

The relay lever is movably supported near the insertion port in a direction intersecting with the insertion direction of the disk-shaped body, and first and second through holes are provided near both ends in the intersection direction. Each is formed.

On the other hand, a pair of first and second guide levers are provided near both ends of the insertion opening. Each of the first and second guide levers is formed with a guide piece at one end on the upstream side in the insertion direction, which is in contact with the outer peripheral edge of the disk-shaped body. Further, the first guide lever is provided at its other end on the downstream side in the insertion direction with a pivotal stop piece standing uprightly engaged with the first through hole, and between the pivotal stop piece and the guide piece. The vicinity is supported so that the first guide lever can swing. On the other hand, the other end of the second guide lever on the downstream side in the insertion direction is swingably supported, and the second guide hole is loosely provided between the other end and the guide piece. The pivoting piece that hangs on is erected. The first and second guide levers have their one end portions mutually urged by a spring member so that the distance between the guide pieces is shorter than the minimum outer diameter of a plurality of types of disc-shaped bodies to be inserted. It is biased in the direction of approaching.

Therefore, the disc-shaped body inserted through the insertion opening is first subjected to preliminary centering by the pair of guide pieces before the centering by the conveying means. With the insertion of the disk-shaped body, one end portions of the first and second guide levers move away from each other, and the relay lever is in one of the intersecting directions regardless of the pivoting stop piece of either guide lever. It is displaced only in the direction, whereby the detection means can detect the insertion of the disk-shaped body and activate the transportation means as described above.

At this time, even if the relay lever is displaced and driven only by one guide lever, for example, only the first guide lever, the pivotal stop piece of the second guide lever moves from one inner peripheral surface side of the second play hole to the other. The second guide lever is not displaced in the direction in which its guide piece is displaced away from the guide piece of the first guide lever, and thus the second guide lever is thus displaced toward the inner peripheral surface side. Even if the body is biasedly inserted into one of the guide levers, it is possible to surely realize preliminary centering with respect to the conveying means.

Further, even if a large-diameter disk-shaped member is inserted with one side of the first and second guide levers biased, for example, to the first guide lever side, the displacement of the first guide lever is caused by the pivotal stop piece. It is regulated by engaging with the inner peripheral surface of the first play hole, and the disk-shaped body is guided, that is, centered toward the second guide lever side.

As described above, according to the present invention, the small-diameter disk-shaped bodies are guided while being centered by the first and second guide levers that are spring-biased in the direction in which they approach each other. Since the displacement of the second guide lever is allowed by the free hole, the swinging range of the first and second guide pieces can be set to a large range from the small-diameter disk to the large-diameter disk for reliable centering. In addition, the structure for performing such guidance can be realized with a simple structure.

Embodiment FIG. 1 is a plan view showing the structure of a lever mechanism in a loading device of this embodiment, FIG. 2 is a plan view showing the inside of a disk reproducing device 41, and FIG. 3 is a side view showing the lever mechanism.
Further, FIG. 4 is a side view showing the inside of the disk reproducing device 41. The disk reproducing device 41 is a substantially rectangular bottom holder.
Including 42. A disk-shaped clamper 43 is arranged substantially at the center of the bottom holder 42, and a turntable 44 is arranged directly below the disk-shaped clamper 43. FIGS. 1 and 2 also show virtual positions at which the compact disks (hereinafter referred to as “disks”) 45S, 45L, which are two kinds of disk-shaped bodies having different diameters, are supported on the turntable 44. ing. The disk 45S has a diameter of 8 cm, for example,
L has a diameter of 12 cm, for example.

Disk 45S, 45L turntable 44 one by one at the time of playback
And is clamped by the disk-shaped clamper 43. The disk-shaped clamper 43 is supported by a swing member 46, and the swing member 46 is swingably supported by a holder 48 around a turntable 44 by a pivot pin 47. When the disks 45S, 45L are not mounted on the turntable 44, the clamper 43 is held in a floating state with respect to the turntable 44. The swinging member 46 guides the fitting pin 50 standing on the bracket 49 up and down along the cam groove 142 of the sliding lever 114, which will be described later, to thereby provide the turntable.
It is possible to bring the clamper 43 to a non-clamping position which is located above the 44 in a floating state, and a clamping position where the disc is sandwiched and which is in close contact with the turntable 44.

The disks 45S, 45L are inserted from the insertion opening 51 along the insertion direction 52. Insertion slot 51 and turntable
A driving roller 53 is provided between the driving roller 53 and the driving roller 53, and a sliding guide plate is provided above the driving roller 53. The drive roller 53 is rotated by a gear (not shown), and the disks 45S, 45
L is guided to the turntable 44 through between the drive roller 53 and the guide plate. The drive roller 53 is supported by a support member 54, and by moving the support member 54 up and down, the drive roller 53 cooperates with a guide plate to rotate the disks 45S, 45.
It is brought to an upper position where L can be transported and a lower position where it is separated from the disks 45S and 45L after insertion.

The lever mechanism for loading the disks 45S, 45L is an insertion detection / regulation mechanism provided on the upstream side of the transfer path of the disks 45S, 45L to be inserted near the insertion port 51 with reference to FIGS. 1 to 3. 55, turntable downstream of the transport route
It comprises a positioning mechanism 56 provided near 44, and a mounting / decoupling interlocking mechanism 57 provided on the side of the positioning mechanism 56.

FIG. 5 is an exploded perspective view showing a simplified configuration of the insertion detection / regulation mechanism 55. The insertion detection / regulation mechanism 55 is
The insertion of the 45S, 45L from the insertion opening 51 is detected, and preliminary centering regulation for the subsequent positioning mechanism 56 is executed for each disk 45S, 45L. Insertion detection / regulation mechanism 5
Reference numeral 5 denotes a relay lever 58 extending in a direction 52a perpendicular to the insertion direction 52, and a first guide lever located at both ends of the relay lever 58 in the longitudinal direction and extending along the insertion direction 52.
59a, a second guide lever 59b, and an intermediate lever 60 which is provided downstream of the relay lever 58 in the insertion direction 52 and extends along the insertion direction 52.

The first guide lever 59a is rotatably and pivotally fixed at its center position to a pivot pin 61a hanging from the upper wall portion 41a (see FIG. 3) of the disk reproducing device 41. The first guide lever 59a
A pivot pin 62a is erected downward at one longitudinal end of the relay pin 58, and the pivot pin 62a is loosely inserted into a substantially triangular first through hole 63a formed at one longitudinal end of the relay lever 58. It
At the other end of the first guide lever 59a in the longitudinal direction, a first guide pin 65a, which is a substantially cylindrical first guide piece, is erected downward. In addition, in the substantially triangular shape of the first through hole 63a,
The surface 64a corresponding to the hypotenuse is orthogonal to the straight line l10a connecting the pivot pin 61a and the pivot pin 62a and forms an engagement surface 64a described later.

The other second guide lever 59b also has a structure similar to that of the first guide lever 59a, and the corresponding portions are indicated by the reference numerals of the same numerical value with a subscript b. However, in the second guide lever 59b, one end portion in the longitudinal direction is rotatably pivoted to the pivot pin 61b, and the pivot pin 62b is erected downward at approximately the center position. It is allowed to pass through a substantially triangular second through hole 63b formed at the end. Further, a second guide pin 65b, which is a second guide piece, is erected downward at the other longitudinal end portion of the second guide lever 59b. The second
Even if the through hole 63b has a substantially triangular shape, the engaging surface 6 corresponding to the hypotenuse
4b is orthogonal to a straight line l10b connecting the pivot pin 61b and the pivot pin 62b.

Further, the relay lever 58 is provided with a guide groove 66 along the right angle direction 52a.
a, 66b are formed, and each pivot pin 61a, 61b is pivoted, and the upper wall portion
A spring 67 is wound around 41a. In this way, the relay lever 58 is slidable along the right angle direction 52a while being biased by the spring toward the first guide lever 59a side.

A spring 68 is also wound between the guide levers 59a and 59b, and the guide pins 6 forming a pair along the right angle direction 52a.
The springs 5a and 65b are biased toward each other. The guide levers 59a, 59b, which are about to be angularly displaced around the pivot pins 61a, 61b by the spring bias, lock the pivot pins 62a, 62b on the inner peripheral edges of the free holes 63a, 63b. As a result, the guide pins 65a and 65b are maintained in a stable state, and the guide pins 65a and 65b are maintained at a preset interval l0. The interval l0 is set smaller than the minimum outer diameter of the inserted disks 45S, 45L.

On the downstream side of the relay lever 58 in the insertion direction 52, an insertion detector 69 is arranged with a pressing piece 70 facing the longitudinal direction of the relay lever 58, and depending on the sliding of the relay lever 58 along the perpendicular direction 52a. The outer peripheral edge 71 along the insertion direction 52 is the pressing piece.
Press / separate from 70.

Insertion direction 52 at one longitudinal end of the relay lever 58
At the downstream end, an intermediate lever 60 is rotatably pivoted by a pivot pin 72, and the intermediate lever 60 is rotatably pivoted on the upper wall portion 41a by a pivot pin 73 at a substantially central position. To be done.
Therefore, in response to the sliding of the relay lever 58 in the right angle direction 52a, the intermediate lever 60 pivots around the pivot pin 73, and the positioning mechanism 56 is followed by the contact piece 74 formed at the downstream end of the insertion direction 52. The lock lever 75 is pushed and slid to operate the positioning mechanism 56.

The operation of the insertion detection / regulation mechanism 55 at the time of inserting the disks 45S and 45L will be described below with reference to FIG. FIG. 6 (1) shows a state before the disks 45S and 45L are inserted. Since the set distance l0 of the guide pins 65a, 65b held in close proximity by the spring 68 is smaller than the outer diameter of the inserted discs 45S, 45L, the discs 45S, 45L inserted substantially from the center of the insertion port 51. The outer peripheral edge of is in contact with both guide pins 65a and 65b. In FIG. 6 (1), a center line 76 along the transport direction 52 of the disks 45S and 45L is shown by a chain double-dashed line.

In this way, when the discs 45S and 45L are inserted with the center line 76 substantially aligned with the center line of the insertion opening 51, both guide pins 65
The a and 65b are pushed outward by the outer peripheral edge in the radial direction. Therefore, the guide levers 59a, 59b are angularly displaced around the pivot pins 61a, 61b, which serve as fulcrums, and the pivot pins 62a, 62b are rotated.
Presses the inner wall surface of the corresponding through holes 63a, 63b on the second guide lever 59b side, and the relay lever 58 slides to the second guide lever 59b side. In this way, the insertion detection is performed by releasing the pressing of the pressing piece 70 by the outer peripheral edge 71.

Here, it is assumed that the center line 76 of the small-diameter disk 45S is inserted at the first guide lever 59a side. When the center line 76 is inserted into the first guide lever 59a side over the displacement amount W1 or more, the outer peripheral edge of the disk 45S does not abut the second guide pin 65b, but comes into contact with the first guide pin 65a. The first guide lever 59a is angularly displaced. Therefore, the inner wall surface of the first play hole 63a is pressed by the pivot stop pin 62a of the first guide lever 59a, and the relay lever 58 slides toward the second guide lever 59b to detect the insertion. .

On the other hand, the second guide lever 59b does not undergo angular displacement, and the relay lever 58
Along with the sliding, the pivot stop pin 62b which has been allowed to pass through the inside of the second free passage hole 63b comes into contact with the engagement surface 64b. As described above, since the engaging surface 64b is orthogonal to the straight line l10b of the pivot pin 61b and the pivot pin 62b, the force of pushing the pivot pin 62b when the relay lever 58 tries to slide toward the second guide lever 59b. Acts toward the pivot pin 61b which is the center of rotation of the second guide lever 59b. Therefore, since the relay lever 58 presses the pivot stop pin 62b, the couple force necessary for the angular displacement does not act on the second guide lever 59b. That is, the second guide lever 59b does not undergo angular displacement, the pivot pin 62b engages with the engagement surface 64b, and the relay lever 58 stops. Thus, the first guide pin 6 of the first guide lever 59a angularly displaced until the relay lever 58 stops.
5a and the second guide pin 6 of the second guide lever 59b that has stopped
As shown in FIG. 6 (2), the distance l1 from 5b is set to be equal to or slightly larger than the outer diameter of the disk 45S. The interval l1 is the first interval.

In this way, when the disk 45S is inserted while expanding only the first guide pin 65a, when the guide pins 65a, 65b are separated by the first distance l1, the guide pins 65a, 6b
Movement of 5b will stop. Therefore, the disk 45S, which is inserted by pressing only the first guide pin 65a, is further inserted as the inner side of the guide pins 65a and 65b.
That is, the vehicle will be guided toward the center line 76. In this way, the disk 45S can be inserted while the centering is preliminarily performed within the displacement amount W1 from the center line 76.

Also, in response to the sliding of the relay lever 58, the intermediate lever 60
The pivot pin 72, which is one end in the longitudinal direction, is pressed, and the contact piece 74 is angularly displaced around the pivot pin 73 toward the arrow 78. As a result, the contact piece 74 is locked by the locking lever of the positioning mechanism 56.
A pressing protrusion 80, which will be described later, of 75 is slightly pressed. Alternatively, it may not be pressed. That is, in the operation of the insertion detection / regulation mechanism 55 by inserting the disk 45S described above, the positioning mechanism
It does not interlock with the operation of 56 described later.

In FIG. 6 (3), it is assumed that the disk 45S is inserted in the second guide lever 59b side in a manner symmetrical to the above, and only the second guide pin 65b is inserted while being expanded. Also in this case, the second guide lever 59b, which is pressed in the same manner as described above, is angularly displaced, the inner wall surface of the second play hole 63b is pressed by the pivot stop pin 62b, and the relay lever 58 slides to detect the insertion. Is done.
Further, the guide lever 59b is angularly displaced and the guide pins 65a, 65b
Is separated by the first distance l1, the pivot stop pin 62a engages with the engaging surface 64a of the first free passage hole 63a through which the second guide lever 59b and the relay lever 58 stop. Thus the second
Disk 45S inserted by pressing only guide pin 65b
Will be guided toward the center line 76 as it is further inserted, and the disk 45S can be inserted while the centering is preliminarily restricted within the displacement amount W1 from the center line 76.

On the other hand, FIG. 6 (4) shows the case where a large-diameter disk 45L is inserted. In the above case, since the outer peripheral edge of the disk 45L abuts both guide pins 65a, 65b, the guide levers 59a, 59b are both angularly displaced, and the respective pivoting pins 62a, 6b.
2b presses the inner wall surfaces of the corresponding through holes 63a, 63b. In this way, the relay lever 58 slides and the insertion is detected. Each guide pin 65a, 65b that can be expanded is at least a disk 45L.
Can be expanded up to the second interval l2 which is equal to or larger than the outer diameter of

Further, it is assumed that one of the disks 45L is inserted, for example, on the side of the first guide lever 59a with a space. When the disc 45L is inserted with the center line 76 in between and abuts only on the first guide pin 65a, the first guide lever 59a that is angularly displaced is moved in the same manner as when the disc 45S is inserted with the disc 45S apart. Since the 1st guide pin 65a and the 2nd guide pin 65b of the 2nd guide lever 59b stopped have the 1st space | interval l1, the said guide pins 65a and 65b stop. When the disc 45L is further inserted, the disc 45L is guided toward the center line 76. Since the first interval 11 is shorter than the outer diameter of the disk 45L, the first interval 11 contacts the second guide pin 65b of the stopped second guide lever 59b. The outer peripheral edge of the abutting disk 45L is the second guide pin 6
By pressing 5b outward in the radial direction, a couple of forces centering on the pivot pin 61b acts on the pivot pin 62b that was engaged with the engagement surface 64b, releasing the engagement, The stopped second guide lever 59b can be angularly displaced. Thus
The guide pins 65a and 65b, which have been temporarily stopped at the first interval l1, can be expanded to the second interval l2, and the disk 45L can be further inserted. The above-mentioned operation is the same when the disk 45L is inserted while being separated from the other second guide lever 59b. Therefore, the disks 45 are separated on one side like this.
Even if L is inserted, the guide pins 65a and 65b can be inserted with the centering preliminarily restricted after the guide pins 65a and 65b are separated by the first distance l1.

The disk 45L is inserted and the guide lever 5 is inserted as described above.
When 9a and 59b are angularly displaced, the relay lever 58 slides greatly,
Further, the intermediate lever 60 is also largely angularly displaced around the pivot pin 73. When the disk 45L is thus inserted, the contact piece 74 of the intermediate lever 60 causes the pressing projection 80 of the lock lever 75 to largely push and slide, and the positioning mechanism 56 described later is interlocked.

As the disks 45S, 45L are inserted, the guide pins 65a, 6L
When half of the discs 45S, 45L in the insertion direction pass between 5b, the length of the chord of the outer peripheral edge between the guide pins 65a, 65b of the passing discs 45S, 45L becomes equal to or less than the outer diameter. Thus, the guide levers 59a and 59b are biased toward each other again. After that, when the disk 45S, 45L passes, the guide pin 6
5a and 65b are held at the set interval l0.

Therefore, according to this embodiment, the insertion detection / regulation mechanism 55
Due to the simple configuration of the disc 45S with multiple outer diameters,
For 45L, insertion detection and preliminary centering regulation can be performed.

FIG. 7 is an exploded perspective view showing a simplified structure of the positioning mechanism 56. The positioning mechanism 56 includes a disk 45 to be inserted.
The rotation center position of S, 45L is positioned on the turntable 44. The positioning mechanism 56 is located on the upper side of the rocking member 46, and is located at both ends of the lock lever 75 in the longitudinal direction of the lock lever 75, which extends in the direction perpendicular to the insertion direction 52 as a longitudinal direction, and is substantially L-shaped. Pair of stopper levers 82
a complete insertion lever 83 which is located between a and 82b and the stopper levers 82a and 82b, and which bends and extends in the right angle direction 52b.
It is configured to include and. Guide grooves 84a, 84b of the lock lever 75
The pivot levers 85a and 85b, which are erected on the swing member 46, are fitted in the lock levers 75, respectively, so that the lock lever 75 can swing along the right-angled direction 52a.

The bending portion of the one stopper lever 82a is rotatably pivoted to one end of the lock lever 75 in the longitudinal direction by a pivot pin 86a, and the turntable 44 is provided at the upstream end in the insertion direction 52 with respect to the bending portion. A substantially cylindrical first positioning pin 87a that hangs downward is erected so as to pass through the guide groove 88a of the swing member 46. An engaging pin 89a is provided upright at the end of the bent portion 52a in the direction perpendicular to the bent portion, and a free passage having two engaging recesses 90a and 91a along the insertion direction 52 in the lock lever 75. The engagement pin 89a passes through the hole 92a. A torsion spring 93a is wound between the engagement pin 89a and the locking position 94a of the lock lever 75, and biases the engagement pin 89a in a direction away from the locking position 94a.

The other stopper lever 82b is also the stopper lever 82a.
The reference numerals of the corresponding parts are shown by adding the same numerical value with a subscript b. The other stop lever 82
b is pivotally fixed by a pivot pin 86b, and a second positioning pin 87b is provided on the upstream side in the insertion direction 52 with respect to the pivot pin 86b,
Further, an engaging pin 89b is provided upright in the vicinity of the bent portion in the corresponding vertical direction. The second positioning pin 87b is the swing member 4
6 through the guide groove 88b, the engagement pin 89b is the engagement recess 90b, 91b
Through the free passage hole 92b. Further, the engagement pin 89b is provided with a torsion spring 9 between the engagement pin 89b and the locking position 94b of the lock lever 75.
3b is wound around, and the locking pin 89a and the locking position 94b are spring-biased in the direction to separate from each other.

A projecting piece 95a that hangs downward is formed near one end in the longitudinal direction of the lock lever 75, and can be in contact with a projecting portion 96a near the bent portion of the one stopper lever 82a. Further, a protrusion 95b that hangs downward due to a notch is formed near the other end in the longitudinal direction of the lock lever 75, and can be brought into contact with a protrusion 96b at the end of the other stopper lever 82b in the direction 52a at right angles. Further, at the one end in the longitudinal direction of the lock lever 75 and at the upstream end in the insertion direction 52, a pressing projection 80 that bends slightly downward and hangs down is formed, and is located in the middle of the insertion detection / regulation mechanism 55. It faces the contact piece of the lever 60.

The insertion complete lever 83 includes a wide body portion 97 extending along the longitudinal direction of the lock lever 75, and an arm portion 98 that is continuous from the body portion 97 while curving in the longitudinal direction. At the approximate center of the insertion lever 83, the longitudinal end of the body 97 is rotatably pivoted to the sliding member 46 located below by a pivot pin 99, and the spring 100 is completely inserted. Lever 83 and swing member 46
It is wrapped between and. A contact piece 101 is formed on the free end portion of the arm portion 98 so as to be directed upward, and the contact piece 101 will be described later.
The pressing piece 103 of the trigger lever 102 of the disengagement interlocking mechanism 57 is pressed and urged in the insertion direction 52. In this way, the insertion complete lever 83 is stably held around the pivot pin 99 without being angularly displaced while maintaining the balance between the force acting on the spring 100 and the force acting on the contact piece 101.

A pair of drive pieces 104 and 105 are formed downward along the insertion direction 52 at the longitudinal ends of the body portion 97. In the insertion completion lever 83 that is stably held as described above, one driving piece 104 is positioned slightly inward in the radial direction with respect to the outer peripheral edge of the small-diameter disk 45S that will be mounted on the turntable 44, and swings. It faces downward through the opening 106 of the moving member 46.
The other drive piece 105 is a large-diameter disk 45L that will be mounted on the turntable 44 at the insertion completion lever 83.
Is located slightly inward of the outer peripheral edge of the rocking member 46.
It faces downwards via a recess 107 on the outer periphery of and also hangs downward from the one driving piece 104.

The operation of the positioning mechanism 56 when the disks 45S and 45L are inserted will be described below with reference to FIG. First, assume that a small-diameter disk 45S is inserted. When the disk 45S is inserted from the insertion port 51, the insertion detection / regulation mechanism 55 performs the insertion detection / regulation operation on the disk 45S as described above, and the disk 45S is brought to the vicinity of the turntable 44. The engagement pins 89a, 89b of the stopper levers 82a, 82b have springs 93 in the engagement recesses 90a, 90b of the corresponding free holes 92a, 92b.
The positioning pins 87a and 87b are engaged with each other by a and 93b, respectively, and are therefore located slightly outward in the radial direction of the outer peripheral edge of the disk 45S that is to be mounted on the turntable 44.

The intermediate lever 60 of the insertion detection / regulation mechanism 55 is a disk
Since there is almost no angular displacement in connection with the insertion of the 45S as described above, the pressing protrusion 80 of the lock lever 75 is hardly pressed, so that the stopper levers 82a, 82b do not pivot and the positioning pins 87a, 87b move. do not do. Therefore, the transferred disk 45S has the above-mentioned positioning pins 8
Positioned on the turntable 44 by 7a, 87b.
While being brought onto the turntable 44, as shown in FIG. 8 (1), the outer peripheral edge of the disk 45S presses one driving piece 104 of the insertion completion lever 83, and the insertion completion lever 8
3 is angularly displaced around the pivot pin 99. In this way, the contact piece 101 of the insertion lever 83 causes the pressing piece 10 of the trigger lever 102 to move.
3 is pressed, and thereafter, the attachment / detachment interlocking mechanism 57 described later is interlocked.

Next, assume that a large-diameter disk 45L is inserted. When the disk 45L is inserted, the insertion detection / restriction mechanism 55 performs the insertion detection / restriction operation on the disk 45L as described above, and the disk 45L is brought to the vicinity of the turntable 44. Intermediate lever 60 of the insertion detection / regulation mechanism 55
Is greatly angularly displaced in relation to the insertion of the disk 45L,
Therefore, the lock lever 75 against which the pressing protrusion 80 is pressed slides along the longitudinal direction toward one stopper lever 82a side. By the sliding, the engagement of the engagement pins 89a, 89b of the stopper levers 82a, 82b with the engagement recesses 90a, 90b is released.

The conveyed disc 45L is conveyed while being hung slightly lower than when the small-diameter disc 45S is inserted, and its outer peripheral edge has positioning pins of the stopper levers 82a and 82b as shown in FIG. 8 (2). Expand 87a and 87b. That is, one driving piece 104 is not pressed by the outer peripheral edge. Further, when the disk 45L is transported and the positioning pins 87a, 87b are expanded, the engaging pins 89a, 89b of the stopper levers 82a, 82b that rotate and the springs 93a, respectively.
The space between the locking positions 94a and 94b where the 93b is locked is close, and at this time, a force for expanding the space acts by the springs 93a and 93b. Therefore, the stopper levers 82a, 82b further pivot and move until the positioning pins 87a, 87b are respectively positioned slightly outward in the radial direction of the outer peripheral edge of the disk 45L to be mounted on the turntable 44.

When the disk 45L is conveyed up to this point, the regulation operation by the insertion detection / regulation mechanism 55 has been completed, and the pressing piece 80 of the lock lever 75 by the contact piece 74 of the intermediate lever 60 is completed.
The pressure on is also released. As a result, the insertion completion lever 83 slides toward the other stopper lever 82b side in the right angle direction 52a by the springs 93a and 93b, and as shown in FIG. 8 (3), the engagement pins 89a and 89b move to the other side. The engaging recesses 91a and 91b are engaged with each other. In this way, the positioning pins 87a and 87b are stopped at the above-mentioned positions, and the transported disk 45L is turned by the turntable 44.
Position up.

It is brought onto the turntable 44 by the positioning, and the outer peripheral edge of the disk 45L presses the other driving piece 105 of the insertion completion lever 83 to angularly displace the insertion completion lever 83 around the pivot pin 99. In this way, the pressing piece 103 of the trigger lever 102 is pressed by the contact piece 101 of the insertion completion lever 83, and thereafter, the mounting / separation interlocking mechanism 57 described later is interlocked.

When ejecting the disc 45L, the positioning pin 8
To return 7a, 87b to the initial position for the disk 45S, as the disk 45L passes through the insertion detection / regulation mechanism 55 in the opposite operation to the above, the lock lever 75 is moved to one stop lever 82a side. When sliding, it can be performed by pressing the protruding portions 96a, 96b of the stopper levers 82a, 82b with the protruding pieces 95a, 95b and urging the springs with the springs 93a, 93b. In this way, the engagement pins 89a, 89b are again engaged with the engagement recesses 90a, 90b, and the positioning pins 87a, 87b are returned to their original positions.

FIG. 9 is an exploded perspective view showing a simplified structure of the attachment / detachment interlocking mechanism 57, and FIG. 10 is a side view showing the essential parts of the attachment / detachment interlocking mechanism 57. The attachment / detachment interlocking mechanism 57 interlocks with the disks 45S, 45L brought on the turntable 44 by the positioning mechanism 56, and moves the clamper 43 and the drive roller 53. Attachment / detachment interlocking mechanism 57
Is a trigger lever 102 extending along the insertion direction 52 across the upper wall portion 41a and the side wall portion 41b, and the trigger lever 1
02, a gear train 112 centered on a toothless gear 111 rotatable about an axis along the right angle direction 52a, and a gear train 112 positioned below the gear train 112 and extending along the insertion direction 52. The slide lever 113 and the slide lever 114 which is located inward along the slide lever 113 in parallel.

The trigger lever 102 has guide holes 115a, 11 along the insertion direction 52.
5b is formed, and the fitting pins 116a and 116b that stand upright on the upper wall portion 41a.
Fit together. In addition, the trigger lever 102,
An engagement piece 127 is formed along the side wall portion 41b, and a spring 117 is wound around the side wall portion 41b. Thus trigger lever 1
02 is spring-biased along the insertion direction 52 and is slidable.
On the inner side of the trigger lever 102, a pressing piece 103 that hangs downward is formed at a position facing the contact piece 101 of the insertion completion lever 83 of the positioning mechanism 56. The spring 1
The spring force of 17 is slightly stronger than the spring force of the spring 100 that urges the insertion completion lever 83, whereby the insertion completion lever 83 is maintained in a stable balanced position.

The trigger lever 102 is integrally provided with a fork 118 extending along the side wall 41b. As shown in detail in FIG. 10, the fork 118 has two legs 119 and 120 and a head.
121, and one of the legs 119 is provided with a protrusion 122 inside. Therefore, fork 118 has two legs 119,1
A leg gap 123 between the 20 and a recess 124 inside the protrusion 122,
Further, recesses 125 and 126 are formed on the left and right of the head 121.

The tooth-chipped gear 111 is rotatably supported on a shaft 128 provided on the side wall portion 41b, a part of its peripheral edge 129 is not provided with teeth, and only a part 130 provided with teeth is provided. Therefore, it meshes with the gear 131 on the drive side, and the power can be transmitted only at that time. Although the gear train on the way is not shown, the drive gear 131 is configured to be decelerated by a motor.

A C-shaped cam 133 is integrally formed on the outer surface of the tooth-chipped gear 111, and at least a part of the trigger lever 102 is inserted into the leg gap 123 formed in the fork 118 of the trigger lever 102. Engage. Two pin-shaped projections 134 and 135 are provided at predetermined positions on the outer surface of the tooth-chipped gear 111. These protrusions 134 and 135 are the head 12 of the fork 118.
The recesses 125 and 126 formed on the left and right sides of 1 are respectively engaged.

The slide lever 113 is fitted with a fitting pin 13 that stands from the side wall portion 41b.
By guiding the guide holes 6a and 136b through the guide holes 137a and 137b, the guide levers 6a and 136b are slidable in a direction parallel to the moving direction of the trigger lever 102. A toothless gear 138 having a small diameter is provided on the inner surface of the toothless gear 111, and a part of the tooth thereof is adapted to mesh with a rack 139 provided on a part of the slide lever 113. The slide lever 113 can be moved in the left-right direction in FIG. 3 only when the tooth gear 111 meshes with the drive gear 131.

Further, the slide lever 113 is provided with a slide lever 114 that slides in a direction parallel to the moving direction of the slide lever 113 via a connecting pin 140. The slide lever 114 is provided with a cam groove 142 formed along the insertion direction 52 via a taper surface 141 that is inclined in the up-down direction, and stands upright from a swing member 46 that supports the clamper 43. The mating pin 50 is mated. Therefore, when the slide lever 113 slides to the right in FIG. 3, the fitting pin 50 is guided by the cam groove 142, the clamper 43 descends, and the disks 45S, 45L are placed on the turntable 44. Is designed to be clamped.

Also, in conjunction with the lowering of the clamper 43, the slide lever 11
The pins engaging the cam groove 143 of the disk 3 allow the disks 45S, 45
The drive roller 53 for moving the L by pushing it from below.
Support member 54 rotates to drive the drive roller 53.
Lower it to a position that does not interfere with the rotation of 45S and 45L.

The operation of the loading / unloading interlocking mechanism 57 at the time of inserting the disks 45S and 45L will be described below. Disk 45S, 45 inserted
With L, when the insertion complete lever 83 is angularly displaced as described above, the trigger lever 102 slides in the direction opposite to the insertion direction 52 against the spring force of the spring 117. The head 121 of the trigger lever 102 pushes the protrusion 134 in the recess 125 upstream of the insertion direction 52 (to the left in FIG. 10 so that the toothless portion 129 faces the drive gear 131 in the initial state). Then, the tooth-chipped gear 111 that has not meshed is rotated to the left by a slight angle, so that the toothed portion 130 moves to a position where it meshes with the drive gear 131. The gear 131 has a motor with the disks 45S, 45L.
Since the toothless gear 111 is decelerated by the same gear train in conjunction with the conveyance of the toothless gear 111, the toothless gear 111 is immediately rotated when the toothless gear 111 starts meshing. At this time, almost at the same time, the tooth-chipped gear 138 on the inner surface side of the tooth-chipped gear 111 also starts to mesh with the rack 139, and the tooth-chipped gear 11 is rotationally driven to move the slide lever 113 to the right in FIG. Will be moved.

Prior to this, the trigger lever 102 is moved to move the toothless gear 111
Of the drive gear 13 by pushing the protrusion 134 of the
When it is moved to the meshing position with 1, the one leg 120 of the fork 118 of the trigger lever 102 is provided on the partly tooth-chipped gear 111 C.
The rear surface of the shaped cam 133 is contacted, and the movement of the trigger lever 102 is blocked. This means that the rotation of the insertion completion lever 83 in which the contact piece 101 is restricted by the pressing piece 103 of the trigger lever 102 is stopped at that position, so that the insertion completion lever 83
The driving pieces 104 and 105 located at the tip of the disk act as positioning pieces for the disks 45S and 45L. The above action cooperates with the positioning pins 87a, 87b to help accurately position the disks 45S, 45L on the turntable 44.

When the tooth-chipped gear 111 is greatly rotated, the slide lever 113 and the slide lever 114 are greatly moved to the right (see FIG. 3).
To the disk 45S, 45 as described above.
The drive roller 53 that has conveyed L descends from the disks 45S, 45L by the action of the cam groove 143, and descends to a position where the clamper 43 presses the discs 45S, 45L by the action of the cam groove 142. Thus, the clamping of the disks 45S, 45L is completed.

After the tooth-chipped gear 111 further rotates and the rear surface of the C-shaped cam 133 separates from the leg portion 120 of the fork 118 of the trigger lever 102,
The trigger lever 102 becomes movable. At this time, the toothless gear 111
The protrusion 135 provided on the outer side surface of the trigger comes into contact with the head 121 of the trigger lever 102, whereby the trigger lever
Since 102 is pushed to the left (see Fig. 3), the trigger lever 102
And the insertion completion lever 83 is moved again, and the drive piece 104,
105 will be separated from the outer peripheral edge of the clamped disks 45S and 45L. In this way, the disk 45S, 45L is the insertion complete lever 83
It is possible to freely rotate on the turntable without being restricted by the driving pieces 104 and 105, and thereby the insertion process of the disks 45S and 45L is completed.

The operations of the insertion detection / regulation mechanism 55 to the mounting / decoupling interlocking mechanism 57 described above are operations during the insertion process of the disks 45S, 45L, and the disks 45S, 45L are disengaged from the turntable 44 to drive the drive roller 53. Therefore, in the process of discharging from the insertion opening 51, the operation opposite to the above is sequentially executed.

Therefore, according to the above-described embodiment, the insertion detection of a plurality of types of disks and the preliminary centering regulation can be executed with a simple configuration.

Effect of the Invention According to the present invention, it is possible to reliably perform insertion detection and preliminary centering of a plurality of types of disk-shaped bodies with a simple configuration.

[Brief description of drawings]

FIG. 1 is a plan view showing the configuration of a lever mechanism in the loading device of this embodiment, FIG. 2 is a plan view showing the inside of the disk reproducing device 41, and FIG. 3 is a side view showing the lever mechanism.
FIG. 4 is a side view showing the inside of the disk reproducing device 41, and FIG.
FIG. 7 is an exploded perspective view showing a simplified structure of the insertion detection / regulation mechanism 55, FIG. 6 is a view for explaining the insertion detection / regulation operation, and FIG. 7 is an exploded view showing a simplified structure of the positioning mechanism 56. FIG. 8 is a perspective view for explaining the positioning operation,
FIG. 9 is an exploded perspective view showing a simplified structure of the attachment / detachment interlocking mechanism 57, FIG. 10 is a side view showing the essential parts of the attachment / detachment interlocking mechanism 57, and FIG. 11 is a configuration for executing an insertion detection operation. FIG. 12 is a diagram showing a conventional example of FIG. 12, and FIG. 12 is a diagram showing a conventional example of a configuration for executing an insertion detection / regulation operation. 41 …… Disk playback device, 44 …… Turntable, 45S,
45L compact disc, 51 insertion slot, 55 insertion detection / regulation mechanism, 58 relay relay, 59a first guide lever, 59b second guide lever, 60 intermediate lever, 62a , 62b ... Pivot stop pin, 63a ... First through hole, 63b ...
… Second through hole, 64a, 64b …… Engagement surface, 65a …… First guide pin, 65b …… Second guide pin, 67,68 …… Spring, 69 …… Insertion detector, l0 …… Setting Interval, l1 ... first interval, l2 ... second
interval

Claims (1)

[Scope of utility model registration request] 1. A loading device for a disk-shaped body, which detects the insertion of the disk-shaped body into an insertion opening and activates a conveying means to convey the disk-shaped body to a predetermined loading position, in the vicinity of the insertion opening. A relay lever, which is displaceably supported in a direction intersecting the insertion direction of the disk-shaped body, and has first and second loose holes formed near both ends in the intersecting direction; First and second guide levers formed in the vicinity of the first and second guide levers, respectively, extending in the insertion direction of the disk-shaped body, wherein the first and second guide levers have a disk-shaped body at one end on the upstream side in the insertion direction. A guide piece that abuts an outer peripheral edge portion of the first guide lever, and a pivotal stop piece that gently engages with the first play hole is provided upright at the other end portion on the downstream side in the insertion direction of the first guide lever. Between the pivot piece and the guide piece The second guide lever is swingably supported, and the other end portion on the downstream side in the insertion direction of the second guide lever is swingably supported, and the second guide hole is provided between the other end portion and the guide piece. The first and second guide levers are provided such that the pivotally engaging pieces that are gently engaged with each other are provided upright, and the interval between the guide pieces is shorter than the minimum outer diameter of the plurality of types of disk-shaped bodies to be inserted. A spring member for urging one end portions of the first and second guide levers toward each other in a mutually approaching direction, and an actuating piece displaced and driven by the relay lever to displace the relay lever in the intersecting direction. A loading device for a disk-shaped body, which comprises: