JPH05205378A - Magazine type disk player - Google Patents

Abstract

PURPOSE:To provide a magazine system disk player capable of dealing with the miniaturization of a device without reducing the utilization efficiency of a space where the device is set up. CONSTITUTION:When the selection information of a disk D is inputted to the disk player housing the magazine, a tray T where the selected disk D is mounted is pulled out by a pulling-out mechanism, a reproducing unit is moved to this position, the disk D is floated from the groove 9 of the tray T by raising a clamper 5 and clamped to a turn-table 4. At this time, a part of the disk D is put into the lower groove 10 of the tray T positioned on its upper side. When a reproducing signal is inputted in this condition, a spindle motor 2 is rotated, the disk D is rotated in the condition that it is positioned in the upper groove 9 and the lower groove 10, a pick-up P is driven in the radial direction of the disk D and thus, the recording information of the disk D is reproduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player for reproducing discs such as compact discs, and more particularly to a magazine type disc player for reproducing information stored in a disc by pulling out the disc from a magazine.

[0002]

2. Description of the Related Art FIG. 7 is a schematic structural explanatory view showing a conventional magazine type disc player called a disc changer, FIG. 8 is a schematic structural explanatory diagram showing an improved example of the conventional magazine type disc player, and FIG. 8 is a partially enlarged view for explaining a problem of the improvement example of FIG. As shown in FIG.
The conventional disc changer is 6
One is selected from a large number of discs D such as eight or eight, and the entire selected one disc D is pulled out to the reproducing unit side, clamped by a clamper, and rotated by a spindle motor Mt. The information recorded on the disk D is reproduced by the pickup P so that a performance such as music can be listened to.

However, in this type of disc changer, the disc D housed in the magazine is completely pulled out from the magazine and loaded into the reproducing unit as described above, so that it is in the left-right direction (left-right direction in the plane of FIG. 7). The dimension Wa of at least two disks is required, which is an obstacle to downsizing the apparatus. Therefore, the area occupied by the disc changer becomes large, and the utilization efficiency of the installation space of the device such as the trunk room of the vehicle decreases.
In order to solve such a problem, as shown in FIG. 8, an improvement in which the disc D is pulled out from the magazine to the reproduction unit side by almost half and is clamped, and the reproduction is performed in a state where the disc is almost half inserted in the magazine. Examples are being considered.

[0004]

In this improved example, since only approximately half of the disk D is pulled out from the magazine, the lateral dimension Wb can be made smaller than before. However, in this improved example, as shown in FIG. 9, the disc D placed on the tray T in the magazine is rotated between the upper and lower trays T, T, and the contact between the tray T and the disc D occurs. In order to prevent this, the gap Hc between the trays T and T has to be set larger than in the conventional case. For this reason, the size of the magazine becomes large, and the vertical dimension Hb of the device becomes larger than the conventional dimension Ha, so that it is not possible to sufficiently reduce the size.

The present invention solves the above problems and provides a magazine type disc player which can cope with the miniaturization of the apparatus and which does not reduce the utilization efficiency of the space in which the apparatus is installed. It is an object.

[0006]

DISCLOSURE OF THE INVENTION The present invention has a disc reproducing unit having a rotating mechanism for rotating a disc and a pickup facing the disc, and a magazine accommodating a plurality of trays on which the discs are placed. A magazine type disc player for reproducing information recorded on a disc in a state where one tray is pulled out from a magazine, wherein the tray is provided with a disc mounted on the upper surface without notching the outer side surface of the tray. An upper groove for mounting is formed, and a lower groove is formed on the lower surface so that a part of the disc being reproduced, which is continuous from the front end in the tray pull-out direction, can enter. And are penetrated.

[0007]

In the above means, the disks are placed in the upper grooves of the upper surfaces of the trays housed in the magazine. When the recorded information on the disc is reproduced, the selected tray is pulled out by the minimum required distance (the distance where the disc is clamped and can be rotated by the driving means). After that, the disc is lifted from the upper groove of the tray on which it is placed, and is clamped at the position where it floats from the upper groove. At this time, the disk is rotated inside the space area between the upper groove of the tray on which the disk is placed and the lower groove of the tray above the disk. As a result, it is not necessary to widen the gap between the trays, and the vertical size of the magazine and the entire apparatus can be set small. In addition, since there is an uncut portion left in front of the tray withdrawing direction, the rigidity of the tray can be maintained high, and hooks for withdrawing the tray can be formed in this remaining portion. become.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 is a schematic plan view showing a magazine type disc player according to the present invention, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is a plan view showing a tray, FIG. 4 is a bottom view showing the tray, and FIG. FIG. 6 is a sectional view taken along the line VV in FIG. 3, and FIG. 6 is a schematic sectional view for explaining the reproducing operation. In FIG. 1, reference numeral 1 denotes a casing of a magazine type disc player. Inside the casing 1, a spindle motor 2 for rotating a disc D and a disc L having a lens L for condensing a laser beam on the disc D are provided. And a disc reproducing unit 3 having a pickup P arranged so as to face D. Reference numeral M is a magazine that accommodates a plurality of trays T on which the disks D are placed, and this magazine M can be inserted into and removed from the housing 1.

The reproducing unit 3 is constructed so as to be movable, for example, in the vertical direction, that is, in the arrangement direction of the discs D in the magazine M, and is moved to a position for reproducing the disc D selected and pulled out from the magazine M. It is like this. A turntable 4 for transmitting a rotational force to the disc D is attached to the spindle motor 2. A clamper 5 is arranged at a position facing the turntable 4. Then, the turntable 4 and the clamper 5 clamp the disc D pulled out from the magazine M in a state of being floated from the tray T. Then, the disk D is rotated by the spindle motor 2. Reference numeral 6 in the drawing denotes a pickup drive motor, the rotation of the drive motor 6 is transmitted to the moving screw 7a through the power transmission gear group 7, and the pickup P is provided with a guide shaft 8 provided along the radial direction of the disk D. Slide on.

As shown in FIGS. 3 and 4, the tray T is
An upper groove 9 having a circular shape having substantially the same diameter as that of the disk D and on which the disk D can be placed is formed on the upper surface of the disk. The upper groove 9 is formed in the upper surface of the tray T and is provided on the outer surface of the tray T without notching. As a result, the connecting portion 12 is left at the front end (the lower end in FIGS. 3 and 4) of the tray T in the pulling-out direction, and the hooking protrusion 13 for pulling out the tray is formed in the connecting portion 12. ing. The selected tray T is pulled out from the magazine M by holding and pulling out the protruding portion 13 by a pull-out mechanism (not shown). On the lower surface of the tray T, a cutout portion 10a that opens at the front end in the pull-out direction (the back side of the connecting portion 12) is formed. Similarly, a lower groove 10 is formed on the lower surface of the tray T in an arc shape having a radius substantially equal to the diameter of the disc D, and a lower groove 10 into which a part of the disc D being reproduced can enter is formed continuously with the cutout portion 10a. Has been done. The upper groove 9 and the lower groove 10 are communicated with each other by a through hole 11 corresponding to a central hole which is a clamp portion of the disk D. The disc D is placed in the upper groove 9 of the tray T with the recording surface facing upward.

By providing the upper groove 9 and the lower groove 10 as described above, the tray T pulled out as shown in FIG.
It becomes possible to position the disc D being reproduced in the space area formed by the upper groove 9 and the lower groove 10 of the tray T on the upper side thereof, and as shown in FIG. It is not necessary to provide a gap Hc between them, and the height dimension Hm of the magazine M can be reduced. As a result, downsizing of the device can be dealt with, and the utilization efficiency of the space where the device is installed is not reduced.

Further, in this embodiment, since the connecting portion 12 is left at the front end of the tray T in the pulling-out direction, the rigidity of the entire tray T can be increased and the tray T is not bent or the like. If the connecting portion 12 does not exist, the front end of the tray T in the pull-out direction is notched to a size larger than the diameter of the disk D, the rigidity of the tray T is reduced, and the tray T is formed by resin. , Distortion and bending during molding are likely to occur. If a large notch is formed at the front end of the tray T in the pull-out direction,
Hooks and the like for pulling out by the pulling-out mechanism must be provided on the left and right sides of the tray T. In this case, it is necessary to dispose a pull-out mechanism for pulling the hook on both the left and right sides of the tray T, and the device size in the left-right direction of the paper surface of FIG. 1 becomes large. Further, since the tray T has to be pulled out evenly to the left and right, the left and right pullout mechanisms must be driven in synchronization, and the device structure becomes large.

Next, the operation of the magazine type disc player having the above structure will be described with reference to FIG. When the selection information of the disc D is input from the control unit (not shown) to the disc player in which the magazine M is stored, the pullout mechanism (not shown) holds the protruding portion 13 provided in front of the tray T to reach an appropriate position. Pull out the tray T. Next, the reproducing unit 3 is moved to the position of the tray T that has been pulled out. Then, the clamper 5 rises to float the disc D from the upper groove 9 of the tray T, and the disc D is clamped by the clamper 5 and the turntable 4. At this time, a part of the disk D (portion (a) in FIG. 6) is lifted from the upper groove 9 of the tray T on which it is placed, and the lower groove 1 of the tray T located above the upper groove 9.
Enter into 0. When a reproduction signal is input in this state, the spindle motor 2 is rotated and the disk D is rotated while being positioned in the space area formed by the upper groove 9 and the lower groove 10, and the pickup P is moved by the drive motor 6 to the radius of the disk D. The information recorded on the disk D is reproduced by being driven in the direction.

As described above, according to the embodiment having the above configuration,
When the disc D is reproduced, a part of the disc D is made to enter the space area formed by the lower groove 10 of the upper tray T and the upper groove 9 of the lower tray T. The dimension in the direction can be set thinner than in the past, and the device can be downsized. Then, the utilization efficiency of the space where the device is installed is not reduced.
In addition, the tray T and the disc D stored in the magazine M
May be any number.

[0015]

As described above, according to the present invention, it is possible to provide a magazine type disc player capable of coping with miniaturization of the apparatus and saving space of the apparatus. Further, although the tray has an upper groove and a lower groove, since the notched portion is left at the front end in the drawing direction, the rigidity of the entire tray becomes high, and distortion etc. at the time of resin molding also occur. Disappear. Further, it is possible to provide a hook for drawing out at the front end of the tray, and the structure of the drawing mechanism can be simplified.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a magazine type disc player according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a plan view showing a tray.

FIG. 4 is a bottom view showing the tray.

5 is a sectional view taken along line VV in FIG.

FIG. 6 is a schematic sectional view for explaining a disc reproducing operation.

FIG. 7 is a schematic configuration explanatory view showing a conventional disc changer.

FIG. 8 is a schematic configuration explanatory view showing an improved example of a conventional disc changer.

FIG. 9 is a partially enlarged view for explaining a problem of the improved example of the conventional disc changer.

[Explanation of symbols]

 1 Case 2 Spindle Motor 3 Disc Playback Unit 4 Turntable 5 Clamper 6 Pickup Drive Motor 7 Transmission Gear Group 8 Guide Axis 9 Upper Groove 10 Lower Groove 11 Through Hole 12 Connecting Portion 13 Projection M Magazine D Disc T Tray

Claims (1)

[Claims] 1. A disk reproducing unit having a rotating mechanism for rotating a disk and a pickup facing the disk, and a magazine accommodating a plurality of trays on which the disk is mounted, and one tray is pulled out from the magazine. A magazine type disc player for reproducing information recorded on a disc in a closed state, wherein the tray is
An upper groove for disc mounting is formed on the upper surface without notching the outer surface of the tray, and a lower groove on the lower surface into which a part of the disc being reproduced, which is continuous from the front end in the pulling direction of the tray, can enter. A magazine-type disc player, which is formed and has an upper groove and a lower groove penetrating in a region corresponding to a clamp portion of the disc.