JPH0677065U - Disk adapter - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a disk adapter for centering a small-diameter disk, which is mounted in a disk-mounting recess formed for a large-diameter disk, and its tip does not float up due to deformation or the like. The present invention provides a disk adapter that can be easily fixed in a disk mounting recess. [Structure] The disk adapter 30 is a disk mounting recess 21.
Of the carriage 20. The carriage 20 has a substantially C-shape that is cut to correspond to the access opening 22 of the carriage 20.
Claw portion 33 inserted into the groove 23 of the access opening 22 and engaged with the lower surface of the edge portion of the access opening 22, and a convex portion formed on the outer peripheral surface 32 thereof and fitted into the hole 25 formed in the side wall of the disc mounting concave portion 21. And a portion 34, and is fixed to the disc mounting recess 21.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a disk adapter mounted in a disk mounting recess formed for a large-diameter disk and centering a small-diameter disk in the disk mounting recess.

[0002]

[Prior art]

 Conventionally, a compact disc having a diameter of 12 cm (hereinafter referred to as a CD) is mounted in a disc mounting recess formed so that a compact disc having a diameter of 8 cm (hereinafter referred to as a single CD) is mounted in the disc mounting recess. Disk adapters for centering the disk have been proposed by Japanese Utility Model Publication No. 1-38787 and Japanese Utility Model Publication No. 4-224440.

[0003]

[Problems to be solved by the device]

 However, since the disk adapters described in any of the publications are simply mounted in the disk mounting recesses of the tray, they are easily set in an inclined state, and their deformation tends to cause the tip to float. It was Further, as described in Japanese Patent Laid-Open No. 4-38659, a carriage having a disk mounting recess can be attached to and detached from the tray, and the carriage in the tray brought to the loading position can be moved up and down inside the apparatus. When applying a disc adapter for a stocker-type disc playback device that is configured to be replaceable with a carriage in a movably arranged stocker, pull out the carriage from the tray if the tip of the disc adapter protrudes from the top surface of the carriage. Could not be performed or could not be inserted into the stocker, which could lead to malfunction or failure of the device.

[0004]

[Means for Solving the Problems]

 The present invention provides a disk adapter that solves the above-mentioned problems, and is a disk adapter that is mounted in a disk mounting recess formed for a large-diameter disk and centers a small-diameter disk in the disk mounting recess. The disk adapter has a substantially C-shape that is cut so as to correspond to the access opening formed in the disk mounting recess, and is formed so as to protrude outward from the tip end where the cut surface and the outer peripheral surface intersect. It is composed of a claw portion that engages with the lower surface of the edge portion of the recess opening, and a convex portion that is formed on the outer peripheral surface and that fits into the side wall of the disc mounting concave portion.

[0005]

[Action]

 According to the disk adapter of the present invention described above, the claw portion engages with the lower surface of the edge portion of the access opening to prevent the tip of the adapter from rising, and the convex portion fits into the side wall of the disc mounting concave portion. By doing so, the entire adapter is securely fixed to the disc mounting recess.

[0006]

【Example】

 Hereinafter, the disk adapter of the present invention will be described as being applied to the stocker type disk reproducing apparatus described above. For the detailed structure of the disc reproducing apparatus, refer to Japanese Patent Application Laid-Open No. 4-38659 filed by the present applicant. As shown in FIG. 2, the tray 10 brought to the eject position has a carriage 20 having a disk mounting concave portion 21 for mounting a CD (not shown) having a diameter of 12 cm formed on the rear side of the tray (inside the apparatus). An opening 11 for opening the upper portion of the disk mounting recess 21 is formed so that the disk mounting recess 21 is more detachably housed. In addition, recesses 12 and 12 are formed on both sides of the tray 10 for facilitating CD attachment / detachment.

On the other hand, in the carriage 20, an access opening 22 is formed from the center of the disk mounting recess 21 toward the inside of the apparatus, facing a turntable and an optical head (both not shown) arranged inside the apparatus. As shown in FIG. 3, a shuttle (not shown) for moving the carriage 20 to and from a stocker (not shown) disposed inside the apparatus is provided on the right side surface and the front side thereof. An engaging notch 23 is formed. Also, recesses 26, 26 are formed on both sides of the carriage 20 for facilitating CD attachment / detachment, and both sides of the mounted CD project from these recesses 26, 26 by several millimeters.

A disk adapter according to the present invention is shown in FIG. 1. The disk adapter 30 has an outer diameter of 12 cm so as to center a single CD (not shown) having a diameter of 8 cm in the center of the disk mounting recess 21. The inner peripheral diameter is 8 cm, and it is formed in a C shape cut so as to correspond to the access opening 22 formed in the carriage 20. Further, claws 33, 33 are formed so as to project outward at a tip end portion where the cut surface 31 and the outer peripheral surface 32 of the disk adapter 30 intersect, and these claws 33, 33 are accessed by the carriage 20 as described later. It is inserted into the grooves 23, 23 formed at the intersection of the opening 22 and the disc mounting recess 21 and engages with the lower surfaces of the edges 27, 27 of the access opening 22 to prevent the tip of the adapter from rising. Stop. Further, on the outer peripheral surface 32 of the disk adapter 30, there are convex portions 34, which fit into the holes 25, 25 formed in the side wall 24 of the disk mounting concave portion 21 (the hole 25 on the right side of the drawing cannot be seen because it is hidden). A protrusion 34 is formed to fix the adapter 30 to the disk mounting recess 21.

The disk adapter 30 has a thickness such that the upper surface thereof is substantially level with the upper surface of the carriage when the disk adapter 30 is mounted in the disk mounting recess, and when both side parts are pressed, the adapter bows upward. Only the lower surface of the intermediate portion 35 is thinly cut along the direction of the cut surface 31 so as to be deformed into a shape. Further, the disc adapter 30 has a gray color that is easy to identify with respect to the black color of the carriage 20 in order to prevent a CD having a diameter of 12 cm from being erroneously placed on the adapter.

Next, a procedure for installing and removing the disk adapter 30 of the present invention described above will be described with reference to FIGS. 4 to 7. First, as shown in FIG. 4, both sides of the disk adapter 30 are lightly held, and the claws 33, 33 are obliquely inserted into the carriage 20 so that the claws 33, 33 are inserted into the grooves 23, 23. Subsequently, as shown in FIG. 5, the upper surface of the disk adapter 30 near the projections 34, 34 is lightly pressed to fit the projections 34, 34 into the holes 25, 25 of the carriage 20. As described above, the disk adapter 30 is securely fixed to the disk mounting concave portion 21, and both side portions thereof project from the concave portions 26, 26 of the carriage 20 by several millimeters like a CD having a diameter of 12 cm. Then, as shown in FIG. 6, if the single CD 40 is set on the inner circumference of the disc adapter 30 and the tray 10 is loaded, a single CD can be reproduced like a CD having a diameter of 12 cm. .

On the other hand, in order to remove the disk adapter 30 from the carriage 20, as shown in FIG. 7, both side surfaces of the disk adapter are gripped and lightly pressed. Then, since the lower surface of the intermediate portion 35 of the disk adapter 30 is shaved as described above, the disk adapter 30 is deformed upward in an arc shape, and the claw portions 33, 33 are disengaged from the grooves 23, 23 of the carriage 20. At the same time, the convex portions 34, 34 separate from the holes 25, 25. Therefore, if it is lifted up as it is, it can be removed naturally. The recesses 26, 26 of the carriage limit the stroke of pressing both sides of the adapter and prevent the adapter 30 from being excessively deformed.

It should be noted that the disk adapter of the present invention is not limited to the above-mentioned embodiment, and various modes can be obtained. For example, in the above-described embodiments, the disk adapter is described as being applied to a stocker type disk reproducing apparatus, but it may be applied to a single disk player having a general tray. In this case, the disc mounting recess is directly formed on the tray. Further, it may be applied to a magazine type disc reproducing apparatus in which a magazine accommodating a plurality of carriages is mounted on the front panel of the apparatus.

[0013]

[Effect of device]

 As described above, according to the disk adapter of the present invention, since it can be easily fixed to the disk mounting recess, it is unlikely to be set in an inclined state, and even if it is slightly deformed, The tip will not float and will not cause malfunction or failure of the device.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing a state in which a tray of a disc reproducing apparatus to which a disc adapter of the present invention is applied is brought to an eject position.

2 is a perspective view showing details of a carriage 20 inserted in the tray 10. FIG.

FIG. 3 is a perspective view of a disk adapter of the present invention.

FIG. 4 is a perspective view showing a mounting procedure 1 of the disk adapter of the present invention.

FIG. 5 is a perspective view showing a mounting procedure 2 of the disk adapter of the present invention.

[Fig. 6] Single C equipped with the disk adapter of the present invention
It is a perspective view which shows the state which mounted D.

FIG. 7 is a perspective view showing a procedure for removing the disk adapter of the present invention.

[Explanation of symbols]

 10 Tray 20 Carriage 22 Access Opening 24 Side Wall 25 Hole 27 Edge 30 Disk Adapter 31 Cutting Surface 32 Outer Surface 33 Projection 34 Convex 35 Intermediate

Claims (2)

[Scope of utility model registration request] 1. A disk adapter mounted in a disk mounting recess formed for a large-diameter disk, for centering a small-diameter disk in the disk mounting recess, wherein the disk adapter is formed in the disk mounting recess. A claw that is cut to correspond to the access opening, has a substantially C-shape, and is formed to project outward from the tip end where the cut surface and the outer peripheral surface intersect, and engages with the lower surface of the edge of the access opening. And a projection formed on the outer peripheral surface and fitted to a side wall of the disk mounting recess. 2. The disk adapter according to claim 1, wherein a lower surface of an intermediate portion of the disk adapter is thinly cut along a direction of the cut surface.