JPH04243052A - Adapter for small diameter disk in disk changer magazine - Google Patents

Abstract

PURPOSE:To make a small diameter disk usable with a magazine for a standard diameter disk and a disk drawing mechanism which are on the market as they are by using a prescribed adapter for the small diameter disk. CONSTITUTION:A link 3 for moving the small diameter disk in the ejecting direction is provided turnably to an approximately U-shaped case 2 having the same thickness as the standard diameter disk, held by a spring in the magazine for the standard diameter disk, and moreover, a spring 6 for energizing the small diameter in the housing direction is provided to the case 2, while a protrusion 8 for positioning inside the magazine and a protruding part 9 for ejecting the disk are provided to an outer end part of the case 2. In this constitution, the small diameter disk is pushed out in the ejecting direction against energizing force of the spring by a disk drawing arm via an ejecting piece to be forwarded to the side of a disk playing mechanism. On the other hand, in the housing position, the small diameter disk is energized by the spring to be positioned stably.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-diameter disk adapter that accommodates a plurality of standard-diameter disks and is capable of accommodating small-diameter disks in a disk magazine used in a disk changer.

0002

2. Description of the Related Art With the spread of on-vehicle CD (compact disc) autochangers, various disc magazines have been proposed, such as in Japanese Patent Application Laid-Open No. 2-87360. In addition to the standard diameter of the disc, which is 12 cm in diameter,
Some are as small as 8cm in diameter. FIG. 11 is a perspective view of a conventional magazine for standard diameter disks, and FIG. 12 is a perspective view of the inside of the magazine. A plurality of (six in this example) disks (not shown) are housed in a resin case 51 of the magazine, which is generally designated by the reference numeral 50. Partition plates 53 are provided in the case 51 in the vertical direction, and spacers 53a are provided at the ends of each partition plate 53 to form a disk storage section 24 between the partition plates. Discs are stored one by one in this disc storage section 24. Further, a pair of left and right leaf springs 25 are housed within the case 51, and each of the leaf springs 25 has a comb-shaped slit so as to function in correspondence with each disk storage portion 24. Further, at the back of the case 51, a number of disk ejection pieces 26 corresponding to the respective disk storage sections 24 are supported by a shaft 27. On the other hand, lower cover 2
2 is provided with a guide groove 22a for inserting the magazine 50 into a predetermined position of the magazine insertion portion of the disc changer, and a recess 22b for engaging with a lock pin (not shown) for locking.

FIG. 13 is an explanatory diagram of the operation of a disk changer using a magazine 50, and the urging direction of the leaf spring 25 changes depending on the position of the disk 11. When the disk 11 is completely inserted into the magazine 50, the leaf spring 25 is biased in the direction to accommodate the disk 11, and when the disk 11 is ejected, it is biased in the ejection direction near the final stroke. When the magazine 50 is inserted into the disc changer and locked, the disc pull-out arm 60 faces the rear end of the disc ejection piece 26. When loading a disc, the disc pull-out arm 60 moves in the b direction at the height of the disc, and the disc ejection piece 26 rotates in the c direction about the shaft 27. As a result, the disk 11 moves in the e direction, and at this time, the disk 11 is held by the rotating rollers 61 in the direction of discharging the disk 11 from the magazine 50, and the disk 11 is loaded into a disk positioning mechanism (not shown). When ejecting the disc, the roller 6 rotates in the opposite direction to the above.
1, the disk 11 is inserted into the magazine 50 and is completely housed by the leaf spring 25.

In order to use the small-diameter disk 10 in the magazine 50, it is necessary to use a small-diameter disk adapter 70 shown in FIG. Separate storage sections 24a and 24b for storing diameter discs and small diameter discs, respectively.
There is a method of using a magazine 80 that is housed in a.

[0005]

[Problem to be Solved by the Invention] Since the conventional disc changer is constructed as described above, in order to play small diameter discs, it is necessary to attach a commercially available adapter to each individual disc and insert it into the magazine. , or you must use a special magazine. The method using the adapter described above tends to result in an unreliable installation condition, and as a result,
Disc changer becomes inoperable. Furthermore, if a dedicated magazine is used, the number of standard-diameter disks and small-diameter disks is limited, resulting in an increase in size.

The present invention has been made in order to eliminate the above-mentioned problems, and its object is to provide an adapter that can also be used with small-diameter disks using a magazine for standard-diameter disks.

[0007]

[Means for Solving the Problems] A small-diameter disk adapter according to the present invention includes a disk magazine that can store a plurality of disks, a disk pull-out mechanism that pulls out disks one by one from the disk magazine, and a disk pull-out mechanism that rotates the disks. A magazine for standard diameter discs in a disc changer equipped with a disc playing mechanism that reads signals, and a disc positioning mechanism that determines whether a disc pulled out from the disc magazine is a standard diameter or a small diameter and clamps the disc by sending it to the disc playing mechanism. A roughly U-shaped case with an outer shape that is locked with a leaf spring when stored in a disc, and has the same thickness as a standard diameter disc, and a disc that is housed within the thickness of this case and rotates around a pivot. a link that moves the small-diameter disk in the ejection direction by the rotating biasing force of a disk ejection piece provided in the magazine, and a spring provided on the inner side of the case that urges the small-diameter disk in the storage direction within the case. The magazine is characterized in that the end of the case is provided with a positioning projection into the magazine and an ejection projection.

[0008]

[Operation] In this invention, when a small-diameter disk is stored together with a small-diameter disk adapter in a standard-diameter disk magazine, the small-diameter disk is moved by the disk pull-out arm through the disk ejection piece against the biasing force of the spring. It is pushed out in the ejection direction and sent to the disc playing mechanism. Furthermore, at the position where the small-diameter disk is stored in the adapter, the small-diameter disk is spring-biased in the direction in which the adapter is stored, and stable positioning can be achieved.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In each figure, the same or equivalent parts as in the conventional example are given the same reference numerals. FIG. 1 shows a plan view of an adapter for small-diameter discs according to the present invention. The entire adapter is indicated by 1, 2 is a substantially U-shaped resin case having the same thickness as a standard-diameter disc, and 3 is a case made of resin. A link 5, which is housed within the thickness of the case 2 and rotates about a support shaft 4, is a piece attached to one end of the link 3 and is an abutment piece for a disk having approximately the same thickness as the case 2. The link 3 has a wide edge 3a on the opposite side of the contact piece 5, as shown in FIG. A protrusion 3b and a groove 3c are provided in the mounting portion of the contact piece 5, and the recess 5a of the contact piece 5 shown in FIGS. 3 and 4 is engaged with the protrusion 3b, and the protrusion 5b is engaged with the groove 3c, respectively. There is. In addition,
3d is a shaft hole of the support shaft 4. Reference numeral 6 denotes a plate-shaped spring bent into an approximately "L" shape that changes the biasing direction depending on the position of the small-diameter disk 10 in order to ensure operation when inserting or ejecting the small-diameter disk 10 into the adapter 1. As shown in FIG. 5, one end of the spring 6 is press-fitted into the case 2, and the other end is a free end 6b that moves freely within a space 2a cut out of the case. Note that the spring force of this spring 6 is made smaller than the spring force of the leaf spring 25 of the magazine 50 described in the conventional example.

Reference numeral 7 denotes the outer shape of the case 2 for locking the adapter 1 in a fixed position by the leaf spring 25 when the adapter 1 is inserted into a magazine of a standard diameter disk, and 8 the outer shape of the case 2 for preventing the adapter 1 from rotating within the magazine. A positioning protrusion 9 provided on the case 2 is an ejection protrusion for ejecting the adapter 1 from the magazine by grasping it with a finger.

FIG. 6 is a perspective view of a magazine 20 that is a partially modified conventional magazine for standard diameter discs, and FIG. 7 is a perspective view showing the inside of the magazine after the magazine 20 is turned over and the bottom cover 22 is removed. . The difference between the magazine 20 and the conventional magazine shown in FIGS. 11 and 12 is that the side plate has a shortened side plate at both ends of the disk insertion slot so that the protrusion 9 is exposed in order to pull out the adapter 1 from the magazine. 21
The formation of a. FIG. 8 shows a perspective view of one small-diameter disk adapter 1 inserted into the standard-diameter disk magazine 20, and FIGS. 9(a) and 9(b) schematically show the entire disk changer 30 using the disk magazine. FIG. 3 is a plan view and a side view showing a case 33 in which a mechanism section 31 is integrated with an insertion section 34 of a magazine 20 and a disk playing mechanism 32. Of course, the disc playing mechanism 32 may be independent.

Next, the operation when using the small-diameter disk adapter 1 according to the present invention will be explained with reference to FIG. When the disk pull-out arm 60 moves in the b direction, the disk ejection piece 26 is rotated in the c direction about the support shaft 27, and in conjunction with this, the link 3 is rotated in the d direction about the support shaft 4. do. As a result, the small diameter disk 10
If it is pushed out by the link 3, it will be discharged in the direction e against the spring force of the spring 6. At this time, since the roller 61 is rotating the disc 10 in the direction of sending it to the disc playing mechanism, the disc 10 is ejected from the magazine 20 and sent to the disc playing mechanism.

On the other hand, when storing the disc, the small diameter disc 10 is
The disk is fed from the playing mechanism to the adapter 1, and near the final stroke, the magazine 20 is pushed by the biasing force of the spring 6.
It is completely stored inside and fixed in position.

Furthermore, by constructing the positioning protrusion 8 of the adapter 1 with a material having a large friction coefficient such as rubber, the disc ejecting piece 26 can be removed by the disc pull-out arm 60.
When pushed in this direction, the protrusion 8 frictionally engages with the magazine 20 to prevent the adapter 1 from coming off from the magazine 20. Furthermore, when the adapter 1 becomes unnecessary and is to be removed from the magazine 20, it is sufficient to grasp the ejection protrusion 9 of the adapter 1 with your fingers and pull it out.

[0015]

[Effects of the Invention] As explained above, according to the present invention,
By using a small-diameter disk adapter, it is possible to use a small-diameter disk using the conventional standard-diameter disk magazine and disk pull-out mechanism. In addition, by storing the adapter for small-diameter disks in the magazine for standard-diameter disks, there is no need to install adapters for each individual disk, and it is possible to prevent damage to the equipment due to incomplete installation of disks. can be made smaller.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a small-diameter disk adapter according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a link of the adapter.

FIG. 3 is a perspective view of an abutment piece.

FIG. 4 is a view of the contact piece viewed from each side.

FIG. 5 is a perspective view showing how the spring is attached to the case.

FIG. 6 is a perspective view of the disk magazine from the outside.

FIG. 7 is a perspective view showing the inside of the disk magazine.

FIG. 8 is an external perspective view of the small-diameter disk adapter according to the present invention inserted into a disk magazine.

FIG. 9 is a diagram schematically showing the entire disc changer.

FIG. 10 is an explanatory diagram of the operation when the small-diameter disk adapter is stored in the standard-diameter disk magazine.

FIG. 11 is an external perspective view of a conventional disk magazine.

FIG. 12 is a perspective view showing the inside of a conventional disk magazine.

FIG. 13 is an explanatory diagram of the operation of a conventional disk magazine.

FIG. 14 is a plan view of a conventional adapter.

FIG. 15 is an external perspective view of a conventional magazine having a standard diameter disk and a small diameter disk.

[Explanation of symbols]

1. Adapter for small diameter discs 2 Case 3 Link 5 Contact piece 6 Spring 7 External shape 8 Positioning protrusion 9 Ejection protrusion 10 Small diameter disc 20 Disc magazine 25 Leaf spring 26 Disc ejection piece 60 Disc drawer arm 61 Roller

Claims (1)

[Claims] [Claim 1] A disc magazine that can store a plurality of discs, and one disc that can be stored in the disc magazine.
A disc pull-out mechanism that pulls out discs one by one; a disc playing mechanism that rotates the discs and reads signals; and a disc positioning mechanism that determines whether a disc pulled out of the disc magazine is a standard diameter or a small diameter and sends it to the disc playing mechanism and clamps the disc. In a disc changer equipped with a standard-diameter disc, there is a substantially U-shaped case that has an outer shape that is locked by a leaf spring when stored in a magazine for standard-diameter discs, and has the same thickness as a standard-diameter disc, and a link that is housed inside the case and is rotatable about a spindle and that moves the small-diameter disk in the ejection direction by the rotation biasing force of a disk ejection piece provided in the magazine; An adapter for small-diameter discs in a magazine for a disc changer, characterized in that it is equipped with a spring that biases the disc in the storage direction in the case, a projection for positioning the disc into the magazine, and a projection for ejection at the end of the case. .