JPH0757447A - Cover opening/closing device for disk player - Google Patents

Abstract

PURPOSE:To obtain a cover opening/closing device which has small number of parts, whose cost is reduced, and where the durability of a switch is improved by eliminating an exclusive switch functioning as a switch for stopping the rotation of a disk at the time of operating an ejecting button in the midst of reproducing a disk and constituting so that the switch may not be actuated in the case of closing a cover. CONSTITUTION:This device is provided with a power source switch 13 turning on/off a power source, the cover 3 provided to be opened/closed so that an attaching part 7 to which the disk 5 is attached may be covered, a locking member 11 locking the cover 3, and the ejecting button 4 switching the locking member to a locked state or an unlocked state. By coupling the power source switch and the ejecting button, the power source switch is constituted to be turned off interlocked with unlocking the cover by the operation of the ejecting button. A spring part 12 having elasticity is formed in the locking member.

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 recording and / or reproducing a disc such as a compact disc (CD), and more particularly, to a device for opening and closing a lid which can be opened and closed. is there.

[0002]

2. Description of the Related Art Conventionally, a disc mounting portion such as a portable disc player or a radio cassette player with a CD is provided with a lid which can be opened and closed about a support shaft and is biased in an opening direction by a spring or the like. Further, inside the lid, a clamp mechanism for rotatably sandwiching the disc with the lid closed is provided. The disc is mounted in the disc player main body with the lid opened, and is clamped at a predetermined position by the clamp mechanism by manually closing the lid.

And, in these disc players,
A lock mechanism is provided for locking the lid in the closed state. When the lid is closed, a locking member provided on the main body side engages with an engagement hole formed in the lid, and locks the lid in a closed state. To open the lid, operate the eject button that is provided from the outside of the main body. By operating the eject button, the engagement between the engagement hole and the lock member is released. In addition, when it is detected that the lid is opened, the drive system that rotationally drives the disk is stopped.

By the way, in the above-mentioned disc player, since the drive system is stopped when the lid is opened, if the eject button is operated while the disc is being reproduced, the disc is rotated. The lid is opened as it is. Since the disc clamping mechanism is released when the lid is opened, there is a possibility that the disc may pop out due to the momentum of its rotation, or the disc surface may come into contact with the player body and damage the disc surface.

Therefore, as shown in FIG. 3, there has been proposed a disc player capable of stopping the rotation of the disc before the lid is opened when the eject button is operated during the reproduction (rotation) of the disc. (Actual Kaihei 4-90
055 publication). This is a state in which the lid (20) constantly biased in the opening direction is provided with an engagement hole (21) for locking the lid (20), and the lid (20) is closed. A lock member (22) which engages with the engaging hole (21) and is biased toward the lid (20) is provided, and the lock member (22) is operated by an eject button (23). The lock member (22) has a tail switch provided with a dedicated switch (24) which is turned on when the eject button (23) starts to be operated, and the switch (24) is connected to a control circuit of a motor for rotationally driving the disk. Has been done. The motor control circuit is configured to control the motor to stop when the switch (24) is turned on, and to open the lid (20) when the eject button (23) is fully operated. ing.

[0006]

However, in the above-mentioned disc player, the dedicated switch (24) which is turned on when the eject button (23) starts to be operated.
However, there is a problem that the number of parts increases and the cost increases. In addition, in the above-mentioned disc player, the switch (24) is operated (turned on) via the lock member (22) even when the lid (20) is closed, so that the switch (24) may malfunction due to malfunction or long-term use. There were problems such as poor durability.

Therefore, the present invention has been made in consideration of the above circumstances, and does not include a dedicated switch as a switch for stopping the rotation of the disc when the eject button is operated during the reproduction of the disc, and the lid is closed. In this case, it is an object of the present invention to provide a lid opening / closing device in which the number of parts is small, the cost is reduced, and the durability of the switch is improved by configuring the switch not to operate.

[0008]

In order to achieve the above-mentioned object, the present invention turns on / off the power of the disc player main body.
A power switch for turning off, a lid that is openable and closable so as to cover a mounting portion where a disc is mounted, a locking member that locks the lid, and an eject that switches the locking member to a locked state or an unlocked state. A button is provided, and by connecting the power switch and the eject button, the power switch can be turned off in conjunction with unlocking of the lid by operating the eject button. Further, a spring portion having elasticity is formed on the lock member.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a lid opening / closing device in a disc player according to the present invention will be described below with reference to FIGS.

First, FIG. 2 is an overall perspective view of a disc player (1) to which an embodiment of the present invention is applied.
A lid (3) is provided on the upper part of the disk, and the lid (3) is opened by operating an eject button (4), and a disc (5) such as a compact disc is taken in and out (mounted / taken out). The lid (3) is the housing (2).
It is provided on the back of the vehicle so as to be openable and closable around the spindle (6).

Next, FIG. 1 is a sectional view showing an essential part for explaining an opening / closing device (9) of a lid (3), (a) is a locked state of the lid, and (b) is an unlocked state of the lid. It is in a state. A mounting portion (7) to which the disc (5) is mounted is opened on the upper surface of the housing (2), and a picking portion (8) is arranged on the upper surface of the housing (2) alongside the mounting portion (7). A recess (10) for arranging the eject button (4) is formed. The eject button (4) is made of a synthetic resin material or the like, and is integrally formed with a lock member (11) for switching between a locked state and an unlocked state by engaging with the lid (3), and further, the lock member (11). ) Has a spring part (12) having elasticity
Are formed. (13) is a disc player (1)
It is a power switch (for example, a slide switch) for turning on / off the power of the main body, and is connected to the eject button (4) via a connecting portion (14).

A metal plate (for example, an iron plate) not shown is provided at one end of the lid (3), and the lid (3) is attracted by a magnet (not shown) provided in the housing (2). Can be held in the closed state. Since the lid (3) is not provided with a spring or the like for urging the lid (3) in the opening direction, the lid (3) is not automatically opened even if the lock is unlocked unexpectedly. It is safe because there is no

Although not shown, inside the lid (3),
A clamp mechanism is provided for rotatably gripping the disc (5) housed in the disc mounting portion (7) with the lid (3) closed, facing the turntable. The disc (5) is inserted into the disc mounting portion (7) when the lid (3) is fully opened, and the lid (3) is manually closed to be held at a predetermined position by the clamp mechanism.

Next, the operation of this embodiment will be described.
When the eject button (4) is moved in the direction of the arrow A in the elongated hole (15) formed in the recess (10), the tip of the lock member (11) is engaged with the engaging hole () formed in the lid (3). 16)
, The lid (3) is completely locked, and the power switch (13) is turned on (Fig. 1).
(A)). Then, by pressing a play button (not shown), the disc (5) of the mounting portion (7) is reproduced.

When the eject button (4) is moved in the direction of arrow B, the engagement between the tip of the lock member (11) and the engagement hole (16) of the lid (3) is released, and the lid (3) is released. Is unlocked and the power switch (13) is turned off (FIG. 1 (b)). That is, even if the eject button (4) is operated (without pressing the stop button (not shown)) during the reproduction of the disc (5), the power switch is operated in conjunction with the unlocking of the lid (3). When (13) is turned off and the disk motor that rotationally drives the disk is stopped, the disk rotation is stopped. When the lid (3) is opened manually, the rotation of the disc (5) has already been decelerated or stopped, so that even if the lid is fully opened and the clamp mechanism releases the disc, the disc does not jump out.

Therefore, in this embodiment, since a dedicated switch is not provided as a switch for stopping the rotation of the disk and the power switch (13) for turning the power on / off is also used, the number of parts is small. Reduce costs,
Also, the circuit configuration can be simplified.

Further, even if the lid (3) is closed with the power switch (13) in the ON position, the lock member (11)
The power is not absorbed by the elasticity of the spring part (12) of the device, and the power switch (13) is not turned off, that is, it is not necessary to turn off the power switch (13) every time the lid (3) is closed, There is an advantage that the lid (3) can be closed while the power switch (13) remains on, and the durability of the power switch (13) is improved.

[0018]

As described above in detail, according to the present invention, as a switch for stopping the rotation of the disc when the eject button is mistakenly operated during the reproduction of the disc, a power switch is provided without providing a dedicated switch. Since they are also used, the number of parts is small, the cost can be reduced, and the circuit configuration can be simplified. Also, by configuring so that the switch does not operate when closing the lid, the lid can be closed while the power switch remains on, that is, it is not necessary to turn off the power switch each time the lid is closed, and The durability of the power switch is improved.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an embodiment according to the present invention,
(A) shows the locked state of the lid, and (b) shows the unlocked state of the lid.

FIG. 2 is an overall perspective view of a disc player to which an embodiment of the present invention is applied.

FIG. 3 is a cross-sectional view of an essential part showing a conventional example.

[Explanation of symbols]

 (1) Disc player (3) Lid (4) Eject button (5) Disc (7) Mounting part (9) Opening / closing device (11) Lock member (12) Spring part (13) Power switch (14) Connecting part

Claims (2)

[Claims] 1. A power switch for turning on / off a power source of a disc player main body, a lid openably and closably provided so as to cover a mounting portion on which a disc is mounted, and a lock member for locking the lid. An eject button for switching the lock member to a locked state or an unlocked state is provided, and by connecting the power switch and the eject button,
A lid opening / closing device for a disc player, characterized in that the power switch can be turned off in conjunction with unlocking of the lid by operating the eject button. 2. The lid opening / closing device for a disc player according to claim 1, wherein the lock member is formed with a spring portion having elasticity.