JPH03160682A - Opening/closing push button device - Google Patents

Abstract

PURPOSE:To obtain an opening/closing push button device whose cost is considerably reduced and operability is improved by arranging the operation parts of an opening/ closing push button at the front surface part and the upper surface part of a cover body to operate a common switch. CONSTITUTION:For the opening operation of the cover body 22, an opening/closing switch 24 is turned on when the front operation surface 23a of the opening/closing push button 23 is depressed, but a disk tray 28 does not advance. When a finger is removed, the push button 23 and the switch 24 are restored and are turned off, the tray 28 starts advancing by electric power. Then, the tray 28 push-opens the cover body 22 against the energizing force of a twisting spring 26 while the tray 28 sticks out and a system comes to a state where the detachment of a disk is attained. For a closing operation, the upper operation surface 22b of the push button 23 faces the front direction of a unit. When it is depressed, the switch 24 is turned on. When the switch 24 is similraly turned off, the tray 28 starts receding, and the cover body 22 closes by the force of the spring 26. Thus, the opening/closing operation of the cover body and the forward/backward operation of the tray can be operated by one push button and one switch, and the cover body is prevented from being abutted on the finger.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an opening/closing button device for opening and closing a cover on the front of a disc playback device, which is configured to be openable and closable, when a disc tray is advanced or retreated in a disc playback device.

2. Description of the Related Art In recent years, disc playback devices in video and audio equipment have been becoming smaller and smaller, and therefore various function operation buttons and function display sections have been arranged over the entire front surface of the device. As a result, an increasing number of devices are now using the entire panel on which the above-mentioned operation buttons and display are arranged as a cover that can be opened and closed, and the disk can be inserted and removed with the cover open. The operability is greatly influenced by the arrangement of the opening/closing buttons for opening and closing the lid.

FIG. 6 is a perspective view showing the external appearance of the disc playback device configured as described above. FIG. 6 is a perspective view showing the state in which the lid is opened by pressing the button in FIG. This is the parent diagram. 6 and 6, 1 is the main body of the device, 2 is the front panel, 3 is the lid body, 4 is the lid cover, 6 is the open button for the disc tray 6, 7 is the close button, and 8 is other functions. The operation button 1o is a display section.

FIG. 7 shows a cross-sectional view of the opening/closing button device in the conventional disc playback device as described above, and an example of the conventional opening/closing button device will be described below with reference to the drawings. In FIG. 6, the lid 3 has a pivot shaft 3a rotatably held by a shaft holding portion 2a protruding from the front panel/L/2, and can be opened at a position tube shown by a dashed line. Front panel/
A close button 7 is attached to v2, and a close switch 9b is pressed. An open button 6 and other operation buttons 8 are attached to the lid body 3, and an open switch 9a,
When the other function switch 9C is pressed, the lid body 3
The rear surface of is covered with a lid cover 4. A screw spring 11 biases the lid 3 in the closing direction.

The operation of the opening/closing button device configured as described above will be explained below.

When opening the lid 3 without the housing, when the open button 6 is pressed, the open switch 9a is turned on and the disc tray 6 is opened electrically.
begins to move forward, pushes the lid 3 open against the force of the screw spring 11, and protrudes, making it possible to attach and detach the disk.

Next, in the case of closing the lid 3, when the close button is pressed, the close switch 9b is turned on, the disc tray 6 is electrically moved backward, and the lid 3 is closed by the biasing force of the screw spring 11.

Problems to be Solved by the Invention However, with the above configuration, although it is possible to open and close the button with one switch in terms of the electrical circuit, two switches and two buttons are required. In addition to being expensive, there was a problem that during the closing operation, if the user did not release the finger immediately after pressing the close button 6, the user's finger would hit the lid 3 as it was being closed.

The present invention solves the above-mentioned problems by providing a one-close button device that allows opening and closing of the lid body and advancing and retracting of the disc tray with one button and one switch, and which improves operability. be.

Means for Solving the Problems In order to solve the above problems, the opening/closing button device of the present invention has the following features:
In devices that have an operating section on a lid that can be opened and closed, the operating surfaces of the open/close buttons that contribute to the opening and closing operations of the lid are placed on the front and top surfaces of the lid so that a common switch can be operated. This is what I did.

Function: With the above-described configuration, the opening operation of the lid body is started by pressing the operation surface arranged on the front surface of the lid, and when the opening operation is finished, the operation surface arranged on the upper surface of the lid is pressed. is facing the front of the device. The closing operation is started by pressing the operation surface arranged on the top surface of the lid. As described above, opening and closing operations can be performed with one button and one switch.

Embodiment Hereinafter, an opening/closing button device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a cross section of an opening/closing button device according to an embodiment of the present invention. In FIG. 1, 21 is a front panel, 22 is a lid, 23 is an opening/closing button, 24 is an opening/closing switch, 26 is a lid, 26 is a screw B spring, 27 is a haflint wiring board, and 28 is a disk tray. A pivot shaft 22a of the lid body 22 is rotatably held by a shaft holding portion 21a protruding from the front panel (v21), and can be opened at position 1 shown by the dashed line. Opening/closing button 2
Reference numeral 3 denotes a front operation surface 23a protruding from the front surface of the lid 22, an upper operation surface 23b protruding from the upper surface of the lid 22, and a support shaft 23.
c and the elastic protrusion 23d are integrally formed. The rear surface of the lid body 22 is covered with a lid strength bar. The screw spring 26 biases the lid body 22 in the closing direction. FIG. 2 is a perspective view showing how to hold the opening/closing button 23;
The support shaft 23c is a first bearing rib 22 provided on the lid body 22.
b, and the second bearing lip 25 provided on the lid strength bar 25.
It is rotatably held by a.

The operation of the opening/closing button device configured as described above will be described below with reference to FIGS. 1 and 3.

FIG. 3 of the housing is an enlarged sectional view showing the rotational movement when the opening/closing button is operated. The opening/closing button 23 is on the front operation surface 23
Regardless of which surface is pressed, a or the upper operation surface 23b, it rotates around the support shaft 23c and the open/close switch 24 is turned to O.
Set it to N. At this time, the elastic protrusion 23d is in contact with the end surface of the printed wiring board 27 and is in a bent state. When the opening/closing button 23 releases your finger on the operation surface, the opening/closing switch 24
It returns to its original position by the restoring force of and the elastic force of the elastic protrusion 23d.

Next, the operation of the lid 22 will be explained using FIG. 1.

1. In the case of opening the lid body 22, when the front operation surface 23a of the opening/closing button 23 is pressed, the opening/closing switch 24 is turned on, but at this point, the disc tray 28 is not moved forward and the front operation surface 23a is pressed. Release your finger and press the open/close button 23.
and when the open/close switch 24 returns and turns OFF,
The electric circuit is configured so that the direct drive tray 28 starts moving forward by electric power. The disk tray 28, which has started moving forward, pushes the lid 22 onto the screw spring 26.
The disk protrudes while being pushed open against the urging force of the disk, and becomes ready for attachment and detachment of the disk.

The disc tray 28 starting/closing switch 24 is OFF.
The reason why the opening is started after the opening/closing button 23 is pressed is to prevent the lid 22 from opening while the opening/closing button 23 is pressed and the user's fingertip is not suddenly pushed back.

Next, when closing the lid 22, the top operation surface 22b of the open/close button 23 faces toward the front of the device, and when this top operation surface 22b is pressed, the open/close switch 24 turns ON.
As in the opening operation, the opening/closing switch 24 is OFF.
When the disc tray 28 starts to move backward, the lid body 2
2 is closed by the force of the screw b spring 26.

The configuration of the above-mentioned electric circuit will be explained below using FIG. 4.

Although this configuration uses a microcomputer program designed to start operating when the switch is turned ON, it does not start operating until the switch is OFF (after you release your fingertip from the push button). This is an example of a circuit configured to do this. In FIG. 4, 23 is an opening/closing button, 24 is an opening/closing switch, 31 is a first resistor,
32 is a second resistor, 33 is a third resistor, 34 is a fourth resistor, 36 is an electrolytic capacitor, 36 is a diode, 37 is a transistor, and 38 is a microcomputer.

The operation of the electric circuit having the above configuration will be explained below.

In the initial state (when the open/close switch 24 is OFF), the first
Since the electrolytic capacitor 36 is charged through the path of the resistor 31, the electrolytic capacitor 36, and the second resistor 32, approximately 6V is applied to both ends of the electrolytic capacitor 36.

Next, when the open/close switch 24 is turned on, the electrolytic capacitor 3
The (-) side of the electrolytic capacitor 35 is discharged through the path of the electrolytic capacitor 36, the diode 36, and the on/off switch 24, and both ends of the electrolytic capacitor 36 become oV.

Next, when the open/close switch 24 is turned OFF again, the (1) side of the electrolytic capacitor 36 becomes Ov.
Since both ends of 0 are Ov, naturally the ←) side is also oV. However, on the ←) side there is a second resistor 32 and a transistor 3.
Since the voltage of 7V is connected, the electrolytic capacitor 36 is charged by the current of the second resistor 32 and transistor 370, and gradually approaches 6V. During this time, the base current flows through the transistor 37 through the first resistor 31, the electrolytic capacitor 36, the third resistor 33, and the fourth resistor 34, so the transistor 37 remains ON for a certain period of time.
do. Therefore, an operation start command can be issued to the microcomputer 38 connected to the transistor 37 without turning on the transistor 37 for a certain period of time after the open/close switch 24 is turned off.

In the second embodiment, after turning on the open/close switch 24 by a program of the microcomputer 38, it is turned off again.
It is also possible to configure the operation to start when F is reached.

As described above, according to this embodiment, in a device in which an operating section is provided on a lid configured to be freely openable and closable, the operation surface of the opening/closing button that contributes to the opening/closing operation of the lid is placed on the front and top surfaces of the lid. By placing them on both sides of the lid and integrally forming one opening/closing switch that can be operated, one opening/closing button and one opening/closing switch can be used to open/close the lid and open/close the disc tray. It is possible to operate the forward and backward movement of the lid, and the lid body does not come into contact with fingers during opening and closing operations.

Effects of the Invention As described above, the present invention minimizes the number of parts by arranging the operation part of the opening/closing button on the front side and the top side of the lid that can be opened and closed, and configuring a common switch so that it can be operated. The opening/closing function can be performed without any problem, resulting in a significant cost reduction.Furthermore, the operability during the opening/closing operation is improved, and a great effect can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of an opening/closing button device according to an embodiment of the present invention, Fig. 2 is a perspective view showing a method of holding the opening/closing button of Fig. 1, and Fig. 3 is an enlarged sectional view showing the rotational movement of the opening/closing button. ,
FIG. 4 is an electric circuit diagram of the opening/closing button device of the present invention,
FIG. 6 is a perspective view showing the external appearance of a disc playback device having a conventional opening/closing button device; FIG. 6 is a perspective view showing a state in which the lid is opened and the disc tray comes out forward in FIG. 5;
FIG. 7 is a sectional view of a conventional opening/closing button device. 21...Front panel, 22...Lid body, 2
3... Open/close button, 24... Open/close switch.

Claims (3)

[Claims] (1) In a device in which an operation unit is provided on a lid that can be opened and closed electrically, the open/close button that contributes to the opening/closing operation of the lid is located on the front surface of the lid and on the top surface of the lid, with the upper edge of the lid as the border. The other functional operating parts are arranged only on the front surface of the lid, and the closing operation of the lid body is started by operating the opening/closing button located on the top surface of the lid. An opening/closing button device characterized by: (2) The opening/closing button device according to claim 1, wherein the opening/closing button is constructed by integrally forming an operating surface disposed on the front surface of the lid and an operating surface disposed on the top surface of the lid. (3) When operating the open/close button, the open/close button returns to its original position after the push operation is completed (switch ON).
2. The opening/closing button device according to claim 1, wherein the opening/closing button device is configured such that the opening operation of the lid body starts when the lid is opened (FF).