JPS60242575A - Reproducing device for recording disk - Google Patents

Abstract

PURPOSE:To prevent a motor from burning by fitting reversely a lid for cartridge replacement in a transport and an in-use state and operating an interlock switch. CONSTITUTION:The lid 2 for cartridge replacement is fitted to an external box 1 with a screw 3 during recording disk reproduction, and the projection part 2a of the lid 2 is pressed against the movable part 4a of the interlock switch 4 to place the switch 4 in the off state. The lid 2 is fitted reversely for transport, and the screw 3 fixes a carrier 6 to a fixture 9 and also fixes the lid 2. At this time, the projection part of the lid 2 is inverted in direction and never pressed against the movable part 4a of the switch 4, so the switch 4 is placed in the on state. Therefore, even when the power source is turned on, the switch 4 enters the on state, so a carrier driving motor 13 is not powered on and then prevented from burning.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a recording disk reproducing device, in particular, improving the mounting condition of the outer box cartridge replacement lid that protects the cartridge during transportation.

[Prior Art] The cartridge replacement part of a conventional recording disk reproducing apparatus, for example, in the VDP-200 type manufactured by Mitsubishi Electric, was constructed as shown in FIGS. 1 and 2. FIG. 1 is a sectional view of the main part in a state of use, and FIG. 2 is a sectional view of the main part in a state of transportation.

In the figure, (1) is the outer box, (2) is the Carmyridge replacement lid, (3) is the mounting screw for attaching the lid to the outer box, and (4) is the cartridge replacement lid that has been removed. An interlock switch that shuts off the power to the main unit when
5) is a cartridge, (6) is this cartridge (5)
shaft (7) and roller (8) in a carrier that moves the
It is maintained by (9) is a fixing device for fixing the gear rear during transportation, (10) is a fixing screw for fixing the carrier to the fixing device, (11) is a recording disk, (12)
(13) is a motor for driving the recording disk, and (13) is a motor for driving the Kirelia.

Next, the operation will be explained.

When playing a recording disc, attach the cartridge replacement lid (2) to the outer box (1) using the mounting screws (3), and then turn the interlock switch ( By pressing the movable part (4a) of 4), the interlock switch (4) becomes inactive,
The device is now powered on. In this state, turn on the power,
Turn on the recording disc (11) and press the play button.
The self-recording disc drive motor (12) rotates and the carrier (6
) [The cut cartridge (5) is moved to the key 1 by the carrier drive motor (13). The binion (13a) that meshes with the rack (6a) of the rear (6) is rotated, and the recording 51 is guided by the shaft (7) and roller (8).
g (11), and the recorded information is reproduced by the cartridge (5).

To prevent the carrier (6) from moving during transportation, tighten the fixing screws (
It is fixed to the fixture (9) by 10 pins.

At this time, the cartridge replacement lid (2) is attached to the outer box (1) in order to protect the cartridge (5) in the same way as during playback.

Since this type of conventional recording disc reproducing apparatus is constructed as described above, the interlock switch (4) is in an inoperative state during transportation as well as during reproducing. If the power is turned on by mistake in this state, the carrier (6) is fixed to the fixture (9) by the fixing screw (10), so the carrier drive motor (13) will not be able to rotate and will burn out. was there.

[Summary of the Invention] This invention has been made to eliminate the drawbacks of the conventional ones as described above. The object of the present invention is to provide a recording disc playback device that can prevent motor burnout by operating an interlock switch.

[Embodiment of the Invention] An embodiment of the invention will be described below with reference to FIGS. 3 and 4. FIG. 3 is a cross-sectional view of the main parts of the present invention in use;
FIG. 4 is a sectional view of the main part in the transportation state. Further, FIG. 5 is a perspective view showing the outer box and the cartridge replacement lid.

In the figure, (3) to (12) are the same as the conventional example.

The outer box (1) and cartridge replacement M (2) are shown in Figure 5 -
・As shown by the dotted chain line, it has a shape that can be installed in reverse. That is, the protrusion (2) of the cartridge replacement lid (2)
A notch (1b) that fits into the suppression piece (2a) when the box (a) is placed on the step (1a) of the outer box (1) is provided at the target position. Further, the screw hole (1C) which is screwed into the cartridge exchange lid mounting screw (3) is provided at a position where it can be screwed into the cartridge exchange lid mounting screw (3) only when in use. Next, the operation of the embodiment of the present invention will be explained. During playback, as shown in Figure 3, the outer box (
In step 1), the cartridge replacement lid (2) is attached to the outer box (1) with the cartridge replacement lid installation screw (3), and the interlock switch (4) is attached to the protrusion (2a) of the cartridge replacement lid (2). When the movable part (4a) of the interlock switch (4) is pressed, the interlock switch (4) is in a non-operating state. During transportation, the cartridge replacement lid (2) is installed in reverse as shown in Figure 4, and the cartridge replacement lid mounting screw (3) is used to attach the carrier (6) to the fixing device (9).
At the same time, the cartridge replacement cover (2) is also fixed. At this time, since the cartridge replacement lid (2) is installed in the opposite direction, the protrusion of the cartridge replacement lid (2) is in the opposite direction, and does not press the movable part (4a) of the interlock switch (4). The interlock switch (4) is in the operating state. Therefore, in this state,
If the power is turned on by mistake, the interlock switch (4) is activated, preventing the gear rear drive motor (13) from being exposed to air, which prevents the motor (13) from burning out. Furthermore, since the mounting screw (3) of the cartridge replacement lid (2) can also be used as a screw for fixing the carrier (6) and fixture (9) during transportation, it is effective in reducing the number of parts.

d) In the above embodiment, the protrusion (2a) of the cartridge exchanger (2) operates the movable part (4a) of the interlock switch (4), but the installation of the interlock switch (4) If the position of Z1 mounting screw (3) for cartridge replacement is changed and it is arranged so that the presence or absence of the Z1 mounting screw (3) or the movement of the mounting screw can be detected, the same effect as in the above embodiment can be obtained.

1 Advantages of the Invention 1 As described above, according to the present invention, in a recording disc playback device equipped with an interlock switch, installation of the car 1 to cartridge replacement cover ( Since the direction of the switch has been changed, the conventional cartridge replacement cover can be installed in the opposite direction (just by pulling it, the interlock switch can be set in or out of operation without adding any parts). City.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of the main part in the used state, Figure 2 is a cross-sectional view of the main part in the transport state, Figure 3 is a cross-sectional view of the main part in the use state of this invention, and Figure 4 is a cross-sectional view of the main part in the transport state. Figure 5 is a perspective view showing the outer box and cartridge replacement lid.In the figures, (1)... Outer box, (2)... Cartridge replacement lid, (3)... Cartridge. Replacement lid mounting screw, (4)
...interlock switch, (6) ...carrier, (9) ...fixing device. In addition, in the figures, the same reference numerals and the same symbols indicate the same or equivalent parts. Agent Name Masuo and 2 others Figure 1 Figure 2 Figure 3 Salary Figure 4

Claims (1)

[Claims] The outer box is equipped with a cartridge that moves on the recording disk and picks up recorded signals during playback, a carrier that moves the cartridge, and a fixture that fixes the carrier during transportation. In a recording disc playback device equipped with an interlock switch that shuts off the power to the main body or stops the moving parts by opening the cartridge replacement lid that protects the cartridge, the cartridge replacement lid and the carrier must be removed during transportation. The interlock switch is configured to be in an operative state by fixing it to the fixture, and to be in an inoperative state by reversing the cartridge replacement lid during use. A recording disc playback device.