JPS59116953A - Disk installing mechanism - Google Patents

Abstract

PURPOSE:To install a disk even if diameter of a turntable is made large by forming a structure for moving a rail upward and downward providing links on both ends of the rail and drawing its center by a wire. CONSTITUTION:When a record disk protective vessel is inserted along a rail 20 and drawn out, an inner case of the inside of the protective vessel and a record disk are left in the inside by a holding mechanism (not shown in the figure), a motor is rotated, and a pulley 28 is rotated in the X direction. As a result, a wire is wound, and shafts 16, 17 are drawn by the same quantity each to the left and right in the center direction, therefore, the rail 20 moves downward along guides 35, 36 through rollers 33, 34. When the rail 20 depresses a bottom dead center detecting switch 38, the motor stops its rotation. When lifting the rail 20, the motor is rotated in reverse, the pulley 28 is rotated in the Y direction and the wire 27 is loosened. The shafts 16, 17 are returned to the outside by a force of springs 25, 26. When the rail 20 depresses a top dead center detecting switch 37, the lift of the rail stops.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a mechanism for mounting a disc onto a turntable, which is suitable for use in a protective container for a record disc.

[Prior art]

As shown in Figure 1, a capacitive video disc player that uses a protective container to protect the recording disc from dust and dirt has a rail 3 rotatably mounted around a fulcrum 2 on a chassis 1. The rail 3 is rotated by the vertical movement mechanism 4. When the protective container is inserted into the rail 3 and pulled out, only the record disk remains inside.The next operation lowers the rail 3 and places the disk on the turntable 5.

In this case, if the diameter of the turntable is increased to prevent deformation of the disk, there is a drawback that the protective container will hit the rail 3 when inserted into it.

[Purpose of the invention]

An object of the present invention is to provide a mechanism that eliminates the above-mentioned conventional drawbacks and allows a disk to be mounted even when the diameter of the turntable is increased.

[Summary of the invention]

In order to achieve the above object, the present invention adopts a method in which the rail is moved up and down horizontally to install the disk.In order to simplify the mechanism, links are provided at both ends of the rail and the rail is moved up and down by pulling the center with a wire. It is characterized by:

[Embodiments of the invention]

The present invention will be explained below with reference to FIGS. 2, 6, 4, and 5. Support points 12.13 are provided at the front and rear of the chassis 11, and arms 14.15 are attached to them, and second arms 18.19 are attached using shafts 16.17 as fulcrums.
8.19 is attached to the fulcrum 21.22 of the rail 20, and the arms 14.15 are provided with stops 23, 24. Springs 25, 26 have axes 16, 17 A respectively.

It is urged to push out in the B direction. A wire 27 is attached to the shaft 16° 17, and a pulley 28 is placed in the center of the wire. A notch 29 is made in the pulley 28 and the wire 27 is passed through it. A worm wheel 60 is fitted with the pulley 28. 31 is connected to a worm wheel 60 and a mesh motor 32. 33 and 34 are guides 3 rotatably attached to the rail 20 and provided in the chassis 11.
It can be moved up and down along 5.56.

37 is a top dead center detection switch, and 38 is a bottom dead center detection switch.

When the record disc protection container is inserted along the rail 20 and pulled out, the inner case and the record disc inside the protection container remain inside by a holding mechanism (not shown), and the motor 32 rotates.
Rotate the pulley 28 in the X direction. This allows wire 2
7 is rotated, and the shafts 16 and 17 are pulled by the same amount on both sides toward the center, so that the rail 20 moves downward along the guide 35.degree. 3 via the rollers 53 and 34. rail 2
0 presses the bottom dead center detection switch 38, and the motor 2 stops rotating.

When raising the rail 20, the motor 62 is reversely rotated, the pulley 28 is rotated in the Y direction, and the wire 27 is loosened. The shafts i6 and 17 are returned to the outside by the force of the springs 25 and 26, and the rail 20 rises. When the rail 20 presses the top dead center detection switch 37, the rotation of the motor 32 is stopped, and the rail rise is stopped. .

At this time, the stoppers 23, 24 come into contact with the arms 14, 15, and the shaft 1
The outward movement of 6°17 is stopped.

According to this embodiment, the rail 20 is caused to move in parallel,
This has the advantage that a record disc can be mounted on a large turntable (not shown).

〔Effect of the invention〕

According to the present invention, since the wire 27 is wound around a pulley, the front and rear of the rail 200 can be moved almost completely in parallel by the same amount, thereby ensuring that the record disc can be securely mounted on the turntable. Also, the wire 27 is attached to the shaft 16
．． Motor 5 can be attached anywhere within the entire length range of Motor 5.
Since the installation location of the second component can be freely selected, the entire device can be made smaller.

[Brief explanation of drawings]

Fig. 1 is a side view showing a conventional example, Fig. 2 is a side view showing an embodiment of the present invention, Fig. 3 is a side view showing the operating state of Fig. 2, and Fig. 4 is a side view of Fig. 1. The Z-direction view, FIG. 5, is a plan view of FIG. 1. Explanation of symbols 11...Chassis, 14.15...Arm,
18.19...Second arm, 16.17...
...Shaft, 27...Wire, 28...Pulley, 29...Cut 292 Doto 1 Tsutsu hand 2 Fig. 37 Doo 3 Fig. rod 4 Fig. 299-

Claims (1)

[Claims] t Create a first arm and a second arm at each of the four corners of the rail,
Two sets are each connected to the connecting part of the arm using two shafts, a wire is connected to each shaft, a pulley is placed in the middle of the wire, and the wire is wound around the pulley. Alternatively, the disc mounting mechanism is characterized in that by loosening the rail, the rail is moved up and down in parallel, so that the disc placed on the rail is placed parallel on the turntable. .