JPH11149688A - Disk carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a small diameter disk from being completely inserted into the device from a slot 1A in the disk carrying device that carries only a large sized disk. SOLUTION: The device is made up of stoppers 250, 251 provided with restriction pins 250C, 251C that are engaged with an outer circumferential face of a small diameter disk Ds so as to prevent the small diameter disk Ds from being completely inserted into the device from a device slot 1A and up of levers 252, 253 that are turned attended with spread movement of loading plates 104, 140 to turn the stoppers 250, 251 at an angle at which the restriction pins 250C, 251C reach the outside of a disk carrying path.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a disk transfer device, and more particularly to a disk transfer device capable of transferring only a large-diameter disk.

[0002]

2. Description of the Related Art First, the applicant of the present invention clamps the left and right peripheral edges of a large-diameter disk inserted into a slot between a pair of belts, and drives one of the belts to transfer the large-diameter disk into the apparatus. The device was proposed in Japanese Patent Application No. 7-138484 (Japanese Patent Application Laid-Open No. 8-315478).

[0003]

However, in such a device, since a small-diameter disk having a diameter of 8 cm, which is generally called a single CD, cannot be clamped between belts, an operator inserts the small-diameter disk completely into the device. As a result, the small-diameter disk cannot be taken out, resulting in a problem that the device is damaged or the small-diameter disk is damaged.

On the other hand, a device for preventing a small-diameter disk from being unable to be taken out is disclosed in Japanese Patent Publication No. 5-32825 or JP-B-32-32825.
No. 826 publication. The disk transfer device described in this publication transfers the disk while holding the upper and lower surfaces of the disk by a disk transfer roller. When the disk transfer roller detects that the small-diameter disk is being transferred by a detection sensor, the disk is transferred. This is to stop the driving of the transport roller.

However, according to the invention, since the disk transfer device cannot clamp the small-diameter disk, it is impossible to prevent the operator from completely inserting the small-diameter disk into the device. Is required.

[0006]

According to the present invention, there is provided a disk transfer device having an engaging portion which can be engaged with an outer peripheral surface of a small-diameter disk.
Stopper means for preventing the small-diameter disc from being completely inserted into the apparatus from the apparatus slot, and when the large-diameter disc is inserted into the slot, the stopper means is retracted to a position where the engaging portion is outside the disc transfer path. And a retracting means. According to this configuration, when the small-diameter disk is inserted into the slot, its outer peripheral surface is engaged with the engaging portion of the stopper means, and further insertion is prevented. On the other hand, when the large-diameter disc is inserted into the slot, the stopper means is brought out of the disc transfer path by the retracting means, so that the outer peripheral surface is transferred to the reproduction position without engaging the engaging portion of the stopper means. Is done.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The configuration other than the small-diameter disk insertion prevention mechanism is the same as that of the apparatus described in Japanese Patent Application Laid-Open No. 8-315478 filed by the present applicant. I want to.

FIG. 1 is a top view of a main part of a disk reproducing apparatus to which the disk transfer apparatus of the present invention is applied, in a disk receiving state in which a disk can be received. Equipment front panel 1
Is formed with a horizontally long slot 1A for inserting and removing a disk. The loading plates 104 and 140 support a driving belt 107 and a friction belt 142 for transporting the disc inserted in the slot 1A, respectively. Guide portions (not shown) for guiding the left and right peripheral edges of the disk are attached to the lower surfaces of the plates 104 and 140, and drive belts 107 are provided on pulleys (before and after the guide portions of the plate 104). Pool on the rear side of the device
(Not shown) to drive the left side of the disk outer peripheral surface. On the other hand, the friction belt 142
Is fixed to the guide portion of the plate 140 to prevent the right side of the outer peripheral surface of the disk from slipping with respect to the plate 140. These loading plates 104 and 140
Are guided by the lower surface of the loading chassis 100 so as to be movable in the left-right direction of the apparatus, are connected by a pinion gear 143, and move in opposition in parallel. In addition, both plates 10
The springs 160 are interposed between the belts 4 and 140 so as to clamp the large-diameter disk D, and the belts 107 and 142 are spaced slightly apart from the large-diameter disk D (120 mm).
mm).

The turntable 222 is for rotating and driving the disc transferred to the reproducing position.
The large diameter disc D at the reproduction position is clamped by a lifter together with a magnet clamper (not shown) disposed above the turntable 222 by being lifted together with the disc 10.

Stoppers 250 and 251 disposed near the left and right of the turntable 222 prevent the small-diameter disk Ds from being completely inserted into the apparatus. It is rotatably attached to the loading chassis 100 by the shafts 250A and 251A. These stoppers 250 and 251 have pinion gears 250B and 251B formed on the upper surface thereof, and have restriction pins 250C and 251C which are located in the disk transfer path and can be engaged with the outer peripheral surface of the small diameter disk on the lower surface side. Is formed. Further, the stoppers 250 and 251 are mounted on the upper portions thereof so as not to rotate with the pressing of the small-diameter disk Ds.
It has stopper pieces 250D and 251D that engage with the edges 100A and 100B of the ding chassis 100.

The levers -252 and 253 are for retracting the stoppers 250 and 251 in conjunction with the opening movement of the loading plates 104 and 140 so that the large-diameter disk D does not engage the regulating pins 250C and 251C. Then, the loading chassis 10 is rotated by the rotating shafts 252A and 253A, respectively.
0 is rotatably attached to the upper surface. Lever-25
2, the pinion gear 25 described above
Racks 252B and 253B that mesh with the racks 0B and 251B are attached, and pins 252C and 253C are attached to the other end. The levers -252 and 253 have a spring 254 interposed therebetween, and the pins 252C and 253C are engaged with the engaging portions 1 of the loading plates 140 and 104 on the opposite side.
It is urged in a direction to engage with 40A and 104A. Thus, the loading plates 104 and 140 are urged in the expanding direction, but do not expand because they are strongly urged in the closing direction by the spring 160 described above.

The operation of the above embodiment will be described below. In the disk receiving state shown in FIG. 1, the loading plates 104 and 140 are positioned at a narrower interval (116 mm) than the large-diameter disk D by the urging force of the spring 160, and the engaging portions 140A, The pins 252C and 253C are pressed by 104A, and the levers 252 and 252 are pressed.
53 is positioned. At this time, lever-252, 25
The stoppers 250 and 251 connected to 3 have an angle at which the regulating pins 250C and 251C are located in the disk transfer path. Therefore, when the small-diameter disk Ds is inserted into the slot 1A in such a disk receiving state, the belts 107 and 142 are positioned wider than the diameter of the small-diameter disk Ds, so that they enter the apparatus without any resistance. However, when the small-diameter disk Ds is inserted to the position shown in FIG.
C, 251C, stoppers 250, 2
51 are pressed clockwise and counterclockwise, respectively, as viewed from the front of the apparatus. However, the stoppers 250 and 251 have the stopper pieces 250D and 251D with the edges 100A and 10A.
0B, the insertion of the small-diameter disk Ds is prevented without rotating in the pressing direction.

On the other hand, when the large-diameter disk D is inserted into the slot 1A, the loading plates 104 and 140 are pushed open as the disk is inserted, and the large-diameter disk D is held between the belts 107 and 142 by the urging force of the spring 160. . Then the lever
252 and 253 are plate engaging portions 140A and 104A.
Are moved counterclockwise and clockwise by the urging force of the spring 252, respectively.
50 and 251 are rotated counterclockwise and clockwise, respectively, as viewed from the front of the apparatus. Therefore, the restriction pins 250C, 251
C starts to evacuate above the disk transfer path. When the movement of the loading plate 104 is detected by a detection sensor (not shown), the belt 107 starts rotating in the counterclockwise direction, and the belt 107 drives the left side of the outer peripheral surface of the large-diameter disk D. Then, it is loaded into the apparatus while rotating clockwise.

When the large-diameter disk D is inserted and transferred to the position shown in FIG. 2, the levers 252 and 253 move the stoppers 250 and 251 by 90 degrees when viewed from the front of the apparatus from the angles shown in FIG. Rotate clockwise, clockwise,
The control pins 250C and 251C are completely retracted above the disk transfer path. Therefore, the large-diameter disk D does not have its outer peripheral surface engaged with the regulating pins 250C and 251C.
It is loaded into the device. Thereafter, as the large-diameter disk D is transferred, the loading plates 104 and 140 are moved to the positions shown in FIG.
Is spread out to the interval shown in FIG.
253 has stoppers 250, 2 because its side faces are locked to the pins 101, 102 of the loading chassis 100.
No further rotation of 51 is performed.

Then, as shown in FIG. 4, when the large-diameter disk D is transported to the reproducing position, the rotation of the belt 107 is stopped, and the loading of the disk is completed.
Subsequently, the turntable 222 and the optical head 210 are lifted by a vertical mechanism (not shown), and the large-diameter disc D
Are clamped on the turntable. Then, the loading plates 104 and 140 are spread by an opening / closing mechanism (not shown), and the belts 107 and 14 are spread from the outer peripheral surface of the disk.
2 are released. As described above, the large-diameter disk D is brought into a reproducible state, is driven to rotate at a predetermined number of revolutions by a turntable 222 similarly to a known disk reproducing apparatus, and the recorded information is optically read by an optical head 210.

On the other hand, the disk D clamped on the turntable 222 is ejected from the slot 1A by performing the above operation in reverse. The detailed description is omitted.

The present invention is not limited to the embodiment described above. For example, according to the above-described embodiment, the disk is transported by driving the left side of the outer peripheral surface of the disk by the belt 107. However, as described in US Pat. Driving the disk outer peripheral surface with the attached roller, USP
As described in JP-A-5,255,255, the disk may be transferred by pressing the outer peripheral surface of the disk with two rotating arms or the like. It is not limited. Also, lever
252, 253, loading plate 140, 1
Although the stoppers are retracted in conjunction with the opening movement of 04, the loading plates 104 and 140 may directly retract the stoppers 250 and 251. Furthermore, although two stoppers are provided, the insertion of a small-diameter disc may be prevented by one stopper, and the number of stoppers is not limited.

[0018]

As described above, according to the apparatus of the present invention, it is possible to prevent an operator from completely inserting a small-diameter disk into the apparatus, and to prevent a failure of the apparatus and damage to the small-diameter disk.

[Brief description of the drawings]

FIG. 1 is a top view of a main part of a disc reproducing apparatus 1000 in a disc receiving state to which a disc transfer apparatus according to the present invention is applied.

FIG. 2 is a top view of a main part of the disc reproducing apparatus 1000 during disc loading.

FIG. 3 is a top view of a main part of the disk reproducing apparatus 1000 during disk loading.

FIG. 4 is a top view of a main part of the disc reproducing apparatus 1000 in a reproducing state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front panel 1A Slot 100 Loading chassis 100A, 100B Edge 104, 142 Loading plate 104A, 142A Engagement part 107 Drive belt 142 Friction belt 143 Pinion gear 160, 254 Spring 210 Optical head 222 Tar Table 250, 251 Stopper 250A, 251A Rotating shaft 250B, 251B Pinion gear 250C, 251C Restriction pin 252, 253 Arm 252A, 253A Rack 252B, 253B Pin D Large diameter disk Ds Small diameter disk

Claims (2)

[Claims] A disk transfer device capable of transferring only a large-diameter disk, comprising an engaging portion capable of engaging with an outer peripheral surface of a small-diameter disk, wherein the small-diameter disk is completely inserted into the device from a device slot. And a retracting means for retracting the stopper means to a position where the engaging portion is out of the disk transfer path when the large-diameter disk is inserted into the slot. Disc transfer device. 2. The disk transfer device further includes a loading plate that spreads and moves with the insertion of the large-diameter disk and transfers the large-diameter disk, and wherein the retracting unit includes the loading plate. 2. The disk transfer device according to claim 1, wherein the stopper means is retracted in conjunction with the spread movement of the disk.