JPS6214905B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an autoloading player that can automatically set a disc on a turntable.

There is an autoloading player that is configured to automatically set an audio, video, etc. disk on a turntable placed in a predetermined cabinet. FIG. 1 shows a conventional example of such an autoloading player. In the case of such a conventional autoloading player, since the structure supports the entire surface of the disk as shown in the figure, the disk conveying means becomes large and the structure becomes complicated.

SUMMARY OF THE INVENTION An object of the present invention is to improve the above-mentioned drawbacks of conventional autoloading players and to provide an autoloading player that has a simple structure and excellent performance.

The autoloading player according to the present invention includes a turntable disposed in a predetermined cabinet with the disk support surface facing downward, and a disk transport means movable in and out of the cabinet and provided with a spindle for supporting the disk. It is characterized in that the disk is brought into close contact with the disk supporting surface of the turntable by means of a spindle provided on the disk conveying means.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 2 is a perspective view of an embodiment of an autoloading player according to the present invention. In this figure, the cabinet 1 has various operation means arranged on the front panel 2, similar to ordinary audio equipment such as amplifiers and tuners. It is designed to be moved in and out. A disk transport means 3 is provided for moving the disk, and by placing the disk 13 on this disk transport means 3, it is possible to automatically perform various operations from setting the disk to signal reproduction. It's getting old. Further, in this case, the positioning of the disk transport means 3 and the disk 13 is performed by placing the disk 13 on the spindle 4 provided on the disk transport means 3.
It can be completed by fitting the center hole of the , and it is also characterized by the fact that there is no need to use a special clamping mechanism.

Next, FIG. 3 is a sectional view of the cabinet showing the internal structure of this autoloading player.
The disk transport means 3 is shown in a state extended to the outside of the cabinet 1. In this figure, a turntable 5 is rotatably arranged inside the cabinet 1 with its disk support surface 6 facing downward, and is rotatably driven by a predetermined driving means. Further, a tone arm 7 is arranged below the turntable 5, and is configured to trace the lower surface of the disk 13 with the stylus of the cartridge facing upward. In such a mechanism for playing back a disc, the operation except for the process of setting the disc 13 on the turntable 5 can be realized in the same manner as in a normal automatic type record player.
The process of setting the disc 13 on the turntable 5 is a feature of the autoloading player according to the present invention. That is, when the disk 13 is placed on the disk conveyance means 3 and conveyance of the disk is started, the disk 13 is transferred into the cabinet 1 while being fitted to the spindle 4 and placed directly below the turntable 5.
Here, the spindle 4 is pushed up by the movement of the wedge-shaped member 10 provided in contact with one end thereof, and presses the disk 13 onto the disk support surface 6 of the turntable 5. In this case, spindle 4
The upper end enters into the recess provided at the center of the turntable 5, so the rise of the spindle 4 is not hindered, and in order to press the disk 13 onto the turntable 5, a flange provided on the spindle 4 is used. 4a pushes up the center of the disk 13, and the turntable 5 is arranged so as to be able to move upward according to the pressure of the spindle 4, so that the weight of the turntable 5 is supported by the disk 13. That will happen. Therefore, the disk support surface 6 of the turntable 5 and the disk 13 are in complete contact with each other, and the turntable 5 rotates stably around the spindle 4. In this state, the tone arm 7 is lead-in and signal reproduction becomes possible, but after the signal reproduction is completed, the wedge-shaped member 10 and the disk transport means 3 operate in the reverse process to the above, and the disk 13 is transferred to the cabinet 1. automatically discharged to the outside.

Next, the configuration of each part will be explained in more detail. First, the disk transport means 3 has a double speed mechanism consisting of a moving member 8 having a spindle 4 at one end and a guide rail 9. One end of a movable member 8 is fixed to one point of a ring-shaped wire stretched between two pulleys, and another point of this wire is centrally symmetrical to the point at which the movable member 8 is fixed. is fixed to the cabinet 1 using a fixing member 14. By using such a mechanism, the movable member 8 and the guide rail 9 can slide relative to the cabinet 1 with the movable member 8 moving twice as far as the guide rail 9, and the disk transport It becomes possible to minimize the depth of the means.

Next, when the turntable 5 is in a non-operating state, the flange portion 11a provided on the center shaft 11 is engaged with a bearing 12 that cooperates with the center shaft 11 formed integrally with the turntable 5. Although in a suspended state, in an operating state, that is, in a state in which the disk is supported and rotated, the bearing 12 and the flange portion 11a of the central shaft 11 are connected to each other as shown in FIG.
The engagement state with the spindle 4 is released, and the weight of the turntable 5 is supported by the flange portion 4a of the spindle 4. Furthermore, the wedge-shaped member 10 makes point contact with the lower end of the spindle 4 to support its rotation. For this reason, it is preferable to arrange bearing balls at the lower end of the spindle 4.

As described above, the autoloading player according to the present invention has a simple and extremely rational structure in which the spindle provided on the moving member of the disc transport means is used for transporting the disc and fixing the disc to the turntable. It is characterized by the fact that there is no risk of malfunction and excellent performance can be obtained.

Further, since the turntable is arranged with the disk support surface facing downward, there is no risk of dust etc. accumulating, the disk support surface is always kept clean, and maintenance is facilitated. Furthermore, the tone arm used for disk signal reproduction can be of any type, such as a normal offset type tone arm, but in the case of a static balance type tone arm, the weight on the balance weight side must be increased. By doing so, the stylus pressure of the cartridge can be easily generated.

Further, in the above embodiment, the disk transport means had a member constituting a speed-doubling mechanism, but the structure is not limited to this, and various mechanisms for moving the spindle 4 in and out of the cabinet 1 can be used. It is clear that it can be done.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a conventional autoloading player, FIG. 2 is a perspective view showing an embodiment of an autoloading player according to the present invention,
FIG. 3 shows the internal structure of the embodiment shown in FIG. 2, and is a sectional view showing the state before disk loading;
This figure is a sectional view similar to FIG. 3, showing a state in which a disk is loaded. Explanation of symbols of main parts, 1...cabinet,
2...Front panel, 3...Disk transport means, 4
...Spindle, 4a...Flange part, 5...
Turntable, 6... Disc support surface, 7...
Tone arm, 8... Moving member, 9... Guide rail, 10... Wedge-shaped member, 11... Central shaft, 11
a...Flange portion, 12...Bearing, 13...Disc, 14...Fixing member.

Claims (1)

[Scope of Claims] 1. A turntable rotatably disposed inside a predetermined cabinet with a disk support surface facing downward, and having a recess at the center of the disk support surface;
a disk transport means having a moving member movable between a position below the turntable and a predetermined position outside the cabinet; The present invention is characterized by comprising a spindle that is provided in the disk and fits into a center hole of the disk to hold the disk, and a spindle moving means that raises the spindle when the moving member moves to a position below the turntable. Auto loading player. 2. The autoloading player according to claim 1, wherein the turntable is arranged to be movable up and down according to the pushing force of the spindle.