JP3527221B2 - Disk autochanger - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc autochanger for storing a plurality of discs and reproducing a selected disc. 2. Description of the Related Art There is known an autochanger for storing a plurality of discs and selecting one of the discs for reproduction. In particular, as a type for storing several tens of disks, there is known an autochanger in which disks are vertically arranged in a horizontal direction and stored. FIG. 17 shows an automatic changer of this type. In the figure, reference numeral 300 denotes a disk storage portion, in which a plurality of disks 310 are vertically stored in a horizontal direction (the direction of arrow P in the figure).
The disc player 200 can be moved in the direction in which the discs are arranged (the direction of arrow P in the figure) by a drive mechanism (not shown). Further, a disc carrying arm 220 for carrying a disc between the disc player 200 and the disc storage section 300 is provided integrally with the disc player 200. The disk transfer arm 220 is rotatable about a fulcrum 221 with respect to the disk player 200, and transfers the disk by moving in the direction of arrow Q in the figure. The disk transfer arm 220 is located above the stored disk while the disk player 200 is moving, so that the movement of the disk player 200 is not hindered. However, in this type of autochanger apparatus, both large-diameter disks (for example, compact disks having a diameter of 12 cm) and small-diameter disks (for example, compact disks having a diameter of 8 cm) are used. It is desired to have a disk transport mechanism that can be stored and that can transport any disk from the disk storage section to the disk player. SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic changer for a disk which solves the above-mentioned problems. A disk accommodating portion for accommodating a plurality of small-diameter disks arranged together, a disk player portion for reproducing a large-diameter disk or a small-diameter disk, the disk accommodating portion for accommodating the large-diameter disk and the small-diameter disk, and the disk player portion And a disk transport mechanism for transporting the disk between the large-diameter disk and the small-diameter disk accommodated in the disk accommodating portion. A first rotating arm that rotates around a rotation fulcrum, and the large-diameter disk or the front with the first rotating arm. A second rotating arm for holding the small-diameter disk, driving means for driving the first and second rotating arms, respectively, and detecting means for detecting the position or the amount of rotation of the second rotating arm The drive control of the driving means for driving the second rotating arm is switched based on the detection result from the detecting means, so that the first rotating arm and the second The distance between the rotating arms when the disk is clamped is set differently according to the diameter of the disk. According to the disk autochanger according to the first aspect of the present invention, the first disk constituting the disk transport mechanism.
Since the rotation fulcrum of the rotation arm and the second rotation arm are located below the disk stored in the disk storage part, the size of the apparatus in the height direction can be suppressed as much as possible, and The distance between the rotating arm and the second rotating arm when the disk is clamped is made different according to the diameter of the disk, so that even disks with different diameters can be securely clamped and transported. It is possible to realize a simple disk autochanger. An embodiment of the present invention will be described below with reference to the drawings. 1 to 12 show the present invention from the side. FIGS. 1 to 6 show the operation of transporting a large-diameter disk stored in a disk storage unit to a disk player, and FIGS. 7 to 12 show the operation of transporting a small-diameter disk in the same manner. It is a thing. Reference numeral 10 denotes a disk storage section for storing a plurality of large-diameter disks 1 arranged vertically in a horizontal direction (a direction perpendicular to the plane of the drawing). The stored large-diameter disks 1 are partitioned one by one by a partition plate 11, and the lower edge of the disks is supported by two disk support portions 12, 13.
A passage hole 14 is formed between the disk supports 12 and 13. The passage hole 14 is a hole through which a first rotating arm described later passes. Here, the two disk support portions 12 and 13 are arranged at intervals so as to support disks of two different diameters. Reference numeral 20 denotes a disk player, which includes a pickup, a turntable, and the like (not shown). The disc player 20 is guided and driven by a guide shaft 21 and a drive mechanism (not shown) in the direction in which the large-diameter discs 1 are arranged (perpendicular to the plane of the paper). Is going. A disk transport mechanism for transporting a disk between the disk storage unit 10 and the disk player 20 includes a first rotating arm 30 and a second rotating arm 40. The first rotating arm 30 is rotatable about the rotation fulcrum 31 so that the disc player 2 can rotate.
The rotation fulcrum 31 is located below the disk stored in the disk storage unit 10. Similarly, the second rotation arm 40 is provided to the disc player 20 so as to be rotatable around the rotation fulcrum 41, and the rotation fulcrum 41 is also provided for the disk stored in the disk storage unit 10. It is configured to be located below. Next, the operation of the disk autochanger of the present invention for transporting a large-diameter disk will be described with reference to FIGS. FIG. 1 shows a state where the large-diameter disk 1 is stored in a disk storage unit 10. At this time, the first rotating arm 30 is located below the disk storage unit 10, and the second rotating arm 40 is located on the disk player 20 side. By the way, the disc player 20
The operation of selecting the desired disk by moving the
It is performed in the state of. When a disk transport command is issued from this state, first, as shown in FIG. 2, the second rotating arm 40 is rotated in a direction approaching the large-diameter disk 1 (clockwise in the figure), and finally. The tip of the second rotating arm 40 contacts the edge of the large-diameter disc 1. The operation of the second rotating arm 40 also serves to detect the size of the disk.
This will be described later. Further, the first rotating arm 30 is also rotated in a direction approaching the large-diameter disk 1 and after passing through the passage hole 14,
As shown in FIG. 3, it contacts the edge of the large-diameter disc 1. At this time, the large-diameter disk 1 is sandwiched between the first rotating arm 30 and the second rotating arm 40. Here, the contact portion 32 that contacts the disk has a curved shape with substantially the same curvature as the circumference of the large-diameter disk. Thereafter, as shown in FIG. 4, the first rotating arm 30 continues to rotate in the same direction, the second rotating arm 40 rotates in the opposite direction, and the large-diameter disc 1 The rotary arm 30 is sandwiched between the contact portion 32 of the rotary arm 30 and the contact portion 42 of the second rotary arm 40, and is conveyed toward the disc player 20 in this state. Then, as shown in FIG. 5, when the large-diameter disc 1 is transported to the disc reproducing position of the disc player 20, the large-diameter disc 1 is clamped by a turntable and a clamper (not shown). When the large-diameter disk 1 is positioned on the turntable by this clamping operation, the large-diameter disk 1 moves slightly upward and is separated from the second rotating arm 40 as shown in FIG. Further, immediately after this clamping operation, the first turning arm 30 is turned in a direction away from the large-diameter disc 1. Thus, the operation of transporting the disk is completed, and the disk can be reproduced. Incidentally, since the operation of returning the large-diameter disk 1 to the disk storage section is the reverse of the above-described disk transport operation, the description thereof will be omitted. Next, the operation of the disk autochanger of the present invention for conveying a small-diameter disk will be described with reference to FIGS.
The transport operation is performed in substantially the same manner as the above-described large-diameter disk. FIG. 7 shows that the small-diameter disk 2 is
The first rotating arm 30 and the second rotating arm 40 are waiting at the same position as in FIG. When a disk transport command is issued from this state, the second rotating arm 40 rotates in a direction approaching the large-diameter disk 1 (clockwise in the drawing) as shown in FIG. The tip contacts the edge of the small-diameter disc 2.
At this time, the second rotating arm 40 is connected to the second rotating arm 40 shown in FIG.
Is in a different rotation position than when the rotation arm 40 abuts against the large-diameter disk. Therefore, the type or disc of the disc can be recognized by detecting the position or the turning amount of the second turning arm 40 when the disc is in contact with the disc by the detecting means (not shown). Thereafter, as shown in FIGS. 10 to 12, the small-diameter disk 2 is conveyed toward the disk player while being held between the first rotating arm 30 and the second rotating arm 40. The first rotating arm 30 at this time
The distance between the second rotating arm 40 and the second rotating arm 40 needs to be narrower than when a large-diameter disk is transported. So the second
The rotation drive of the rotation arm 40 is controlled differently from the case of transporting a large-diameter disc to cope with this. The switching of the drive control of the second rotating arm 40 is performed based on the above-described detection result of the disc type.
Further, since the first rotating arm 30 is driven to rotate in the same manner as in the case of transporting a large-diameter disk, it is possible to minimize the complexity of drive control and the complexity of the mechanism. There is no danger of worsening the feeling. Next, another embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. Numeral 50 denotes a disk storage unit for storing a plurality of large-diameter disks 1 arranged vertically in a horizontal direction (a direction perpendicular to the plane of the drawing). The stored large-diameter disc 1 is composed of a plurality of partition plates 5.
Each of the discs is divided by one, and the lower edge of the disc is supported by the first rotating arm 52. The first rotating arms 52 are provided by the number of disks that can be stored, and are provided between the partition plates 51 one by one. Reference numeral 60 denotes a disk player, which includes a pickup, a turntable, and the like (not shown). The disc player 60 is driven by a guide drive mechanism (not shown) in the direction in which the large-diameter discs 1 are arranged (the direction perpendicular to the plane of the paper). The disc player 60 is provided with a second rotating arm 61,
A moving member 62 for driving the first rotating arm 52 and the second rotating arm 61 is provided. FIG. 13 shows a state where the large-diameter disk 1 is stored in the disk storage section 50. At this time, the large-diameter disk 1 is stored while being supported by the first rotating arm 30. When a command to convey a disk is issued from this state, the moving member 62 moves and presses the projection 53 of the first rotating arm 51, thereby rotating the first rotating arm 51. As a result, the large-diameter disc 1 moves from the storage position, and the first turning arm 52 and the second turning arm 61 sandwich the disc as shown in FIG. When the moving member 62 further moves from this state, the second turning arm is also turned by the moving member together with the first turning arm 52, and as shown in FIGS. Are the first rotating arm 52 and the second
Is transported to the disc player 60 while being sandwiched by the rotating arms 61 of FIG. The return of the disk is performed by the reverse operation. According to this embodiment, the first rotating arm 52
The disk player 60 is provided separately from the disk player 60, so that the disk player 60 is light in weight and has an advantage that the disk player can be smoothly moved when selecting a desired disk. As described in detail above, according to the disk autochanger of the first aspect of the present invention, the rotation of the first rotation arm and the second rotation arm constituting the disk transfer mechanism. Since the fulcrum is located below the disk stored in the disk storage part, the size of the apparatus in the height direction can be minimized, and the first rotating arm and the second rotary arm
The distance at the time of clamping the disc with the rotating arm of the disc is made different according to the diameter of the disc, so that even if the discs have different diameters, an autochanger of the disc that can reliably clamp and transport the disc is realized. It becomes possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an operation of conveying a large-diameter disk in a disk autochanger according to the present invention. FIG. 2 is a view showing an operation of conveying a large-diameter disk in the disk autochanger according to the present invention. FIG. 3 is a view showing an operation of conveying a large-diameter disc by the disc autochanger according to the present invention. FIG. 4 is a diagram showing an operation of conveying a large-diameter disk in the disk autochanger according to the present invention. FIG. 5 is a diagram showing an operation of conveying a large-diameter disk in the disk autochanger according to the present invention. FIG. 6 is a diagram showing an operation of conveying a large-diameter disk in the disk autochanger according to the present invention. FIG. 7 is a view showing an operation of conveying a small-diameter disk of the disk autochanger according to the present invention. FIG. 8 is a diagram showing an operation of conveying a small-diameter disk of the disk autochanger according to the present invention. FIG. 9 is a view showing an operation of conveying a small-diameter disk of the disk autochanger according to the present invention. FIG. 10 is a view showing an operation of conveying a small-diameter disk of the disk autochanger according to the present invention. FIG. 11 is a diagram showing an operation of conveying a small-diameter disk of the disk autochanger according to the present invention. FIG. 12 is a view showing an operation of conveying a small-diameter disk of the disk autochanger according to the present invention. FIG. 13 is a diagram showing another embodiment of the disc autochanger according to the present invention. FIG. 14 is a diagram showing another embodiment of the disc autochanger according to the present invention. FIG. 15 is a view showing another embodiment of the disc autochanger according to the present invention. FIG. 16 is a diagram showing another embodiment of the disc autochanger according to the present invention. FIG. 17 is a view showing an example of a conventional disk autochanger. [Description of Symbols] 1... Large-diameter disk 2... Small-diameter disk 10. Player 30 First rotating arm 40 Second rotating arm 50 Disk storage section 52 First rotating arm 60 Disk player 61 .... Second rotating arm

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 17/28 G11B 17/30

Claims (1)

(57) [Claims] (1) A disk accommodating section for arranging a large-diameter disk and a small-diameter disk together and accommodating a plurality of disks, a disk player section for reproducing a large-diameter disk or a small-diameter disk, A disk transport mechanism that transports the large-diameter disk and the small-diameter disk between the disk storage unit and the disk player unit, wherein the disk transfer mechanism includes the disk storage unit A first rotating arm that rotates about a rotation fulcrum located below the large-diameter disk and the small-diameter disk accommodated in the large-diameter disk and the small-diameter disk; and the large-diameter disk or the small-diameter disk together with the first rotary arm A second rotation arm for holding the first rotation arm, a driving unit for driving the first and second rotation arms, respectively, and the second rotation arm Detection means for detecting the position or the amount of rotation of the arm, based on the detection result from the detection means, the drive control of the driving means for driving the second rotation arm is switched An interval between the first rotating arm and the second rotating arm when the disk is clamped is set to be different depending on the diameter of the disk.