JPH05314858A - Device for holding control button of portable electronic equipment - Google Patents

Abstract

PURPOSE:To easily determine whether control buttons are held or released by causing the control buttons to be held when hidden beneath a shutter plate, and released when exposed to the outside. CONSTITUTION:When a shutter plate 53 is at (a), control buttons 55, 56, 57 for the first mode are exposed to the outside (release) by respective openings 61, 62, 63 while control buttons 58, 59, 60 for the second mode are hidden beneath the shutter plate 53 (hold). In this case, therefore, control is made possible in the first mode while control in the second mode is disabled. When the shutter plate 53 is rotated by 45 degrees in the direction of arrow from (a) to (b), the control buttons 58, 59, 60 for the second mode are exposed to the outside (release) by the respective openings 61, 62, 63 while the control buttons 55, 56, 57 for the first mode are hidden beneath the shutter plate 54 (hold). In that case, control is made possible in the second mode while control in the first mode is disabled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided in a portable electronic device such as a headphone stereo, a compact disc, a digital audio tape recorder, a radio, etc., and operates the portable electronic device to prevent erroneous operation of various operation buttons. The present invention relates to a button hold device.

[0002]

2. Description of the Related Art FIG. 10 shows a headphone stereo as a conventional portable electronic device. This headphone stereo has a plurality of operation buttons 1 for operating the tape running,
Two, three and four are provided. These operation buttons 1, 2,
Since the buttons 3 and 4 are usually feather touch type push buttons, they are easily misoperated.

For this reason, the headphone stereo is provided with the slide switch 5, and the slide buttons 5 are turned on and off to electrically hold the operation buttons 1, 2, 3, and 4. You can do it.

[0004]

However, in the case where the operation buttons 1, 2, 3, 4 are electrically held by the slide switch 5 like the portable electronic equipment of the above-mentioned conventional example, the operation button 1 It is difficult to determine whether 2, 3, or 4 are currently in the hold state (hold on) or in the hold release state (hold off), and there is a problem that it takes time and effort to confirm which state. there were.

This is because the slide amount of the slide switch 5 is very small, about 1 mm to 2 mm, and switching between ON and OFF is performed during this period.

Therefore, the present invention has been made in view of the above circumstances, and provides an operation button hold device for a portable electronic device, which can easily determine whether the operation button is in the hold state or the hold release state. The purpose is to provide.

[0007]

In order to achieve the above object, an operation button holding device for a portable electronic device according to the present invention has a shutter plate rotatably mounted on a device case about a spindle. , When the shutter plate is rotated about the spindle in a specific direction by a predetermined angle, the operation buttons attached to the equipment case are hidden by the shutter plate and mechanically held, and the shutter plate is supported by the spindle. It is characterized in that the operation button is exposed to the outside and is released from the hold when it is rotated in a specific direction about the with a predetermined angle.

[0008]

In the operation button holding device of the portable electronic device having the above-described structure, the operation state is hidden by the shutter plate being rotated by a predetermined angle in a specific direction, and the operation button is exposed to the outside. The hold release state can be switched. With this, it is possible to determine at a glance whether the operation button is in the hold state or the hold release state.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a headphone stereo as a portable electronic device including an operation button hold device according to a first embodiment of the present invention. In the present headphone stereo, the operation buttons 6, 7, 8, 11 for operating the tape running are installed at equal intervals on the same pitch circle centered on the point P of the side surface 12A of the device case 12. Further, the disk-shaped shutter plate 13 of the operation button holding device of the present invention is attached to the same side surface portion 12A of the device case 12 so as to be rotatable around the point P. The disc-shaped shutter plate 13 includes
Circular openings 14, 15, 16, 17 are formed at positions corresponding to the operation buttons 6, 7, 8, 11.

FIG. 2 is a view of the installation portion of the operation buttons 6, 7, 8 and 11 as seen from the inner surface side of the equipment case 12, and FIG.
FIG. 4 is a sectional view of a portion of the device case 12 where the shutter plate 13 is installed. A portion of the device case 12 where the shutter plate 13 is installed is recessed in a circular shape, and the shutter plate 13 is fitted in the circular recess 18. The shutter plate 13 fitted in the recess 18 is the side surface portion 12 of the device case 12.
It is in the same state as A. Operation buttons 6, 7, 8, 11
The foot 20 on the outer peripheral portion of the button board 19 having a substantially circular shape.
Are formed integrally with each other. The button board 19 has a boss 19 in a center hole 21 formed on a point P of the device case 12.
A is press-fitted and fixed inside the equipment case 12. In addition, the operation buttons 6, 7, 8 and 11 are used for the device case 12
It is fitted in a hole 31 formed in the above so as to be vertically movable.

The shutter plate 13 has a support shaft 13 at the center on the lower surface side.
A has a shaft 13A and a boss 1 of the button board 19
It is rotatably fitted in the central hole 32 of 9A. A cam plate 33 is arranged below the button board 19. The cam plate 33 is fixed to the support shaft 13A of the shutter plate 13 with a screw 34, and rotates when the shutter plate 13 is rotated about the support shaft 13A. The rotation of the cam plate 33, which is interlocked with the rotation of the shutter plate 13, is restricted by the restriction pieces 35 and 36 formed on the button board 19. Therefore, the shutter plate 13 can rotate within the range in which the cam plate 33 is restricted by the restriction pieces 35 and 36.

Now, when the cam plate 33 is restricted by the one restricting piece 35, the shutter plate 13 is in the condition shown in FIG. 4A, and the openings 14, 15, 16 and 17 have the operation buttons 6 respectively. , 7, 8 and 11 are matched. As a result, the operation buttons 6, 7, 8 and 11 are exposed to the outside through the openings 14, 15, 16 and 17 (hold release state). In this state, as shown in FIG. 5A, the openings 14, 15,
Insert the finger 37 from 16, 17 and operate the operation buttons 6, 7, 8,
11 can be operated.

When the cam plate 33 is restricted by the other restricting piece 36, the shutter plate 13 is in the condition shown in FIG. 4B, and the openings 14, 15, 16 and 17 have the operation buttons 6 respectively. , 7, 8 and 11 are located. As a result, the operation buttons 6, 7, 8, 11 are hidden by the shutter plate 13 (hold state). In this state, FIG.
As shown in, the finger 37 cannot operate the operation buttons 6, 7, 8, and 11.

The cam plate 33 is tensioned by a torsion spring 38 interposed between the cam plate 33 and the button board 19. Therefore, the movement of the shutter plate 13 at the time of switching between the hold state and the hold release state is a quick movement. Also, like this,
When the shutter plate 13 is switched, the small projection group 39 formed on the upper surface of the shutter plate 13 is put on the finger pad and rotated.

The operation button holding device of the second embodiment shown in FIG. 6 uses a disc-shaped shutter plate 41 having a horizontal notch 40 formed in a part of the outer peripheral surface. In this operation button holding device, when the shutter plate 41 is at the position shown in FIG. 6A, the operation buttons 42, 43, 44 are exposed to the outside by the notches 40 (hold release state). In addition, the shutter plate 41
6 is rotated 90 degrees in the direction of the arrow from the position of FIG.
When switched to the position of (b), the operation buttons 42, 43, 4
4 is hidden by the shutter plate 41 (hold state).

The operation button hold device according to the third embodiment shown in FIG. 7 uses a cross-shaped shutter plate 45. In this operation button holding device, the shutter plate 45 is shown in FIG.
In the position of, the operation buttons 46, 47, 48, 49 are exposed to the outside from between the shutter plates 45 (hold release state). Further, when the shutter plate 45 is switched from the position of FIG. 7A to the position of FIG. 7B rotated by 45 degrees in the arrow direction, the operation buttons 46, 47, 48, 49 cause the shutter plate 45 to move.
Hide in (hold state).

The operation button holding device of the fourth embodiment shown in FIG. 8 uses a tongue-shaped shutter plate 50. In this operation button holding device, when the shutter plate 50 is at the position shown in FIG. 8A, the operation buttons 51, 52 arranged in a straight line,
53 is removed from the shutter plate 50 and exposed to the outside (hold release state). Further, when the shutter plate 50 is switched from the position of FIG. 8A to the position of FIG. 8B rotated by approximately 60 degrees in the arrow direction, the operation buttons 51, 52 and 53 are hidden by the shutter plate 50 (hold). Status).

In the operation button holding device of the fifth embodiment shown in FIG. 9, the shutter plate 54 is used to switch the operation mode. Here, the operation buttons 55, 56, 57 for the first mode (for example, tape recorder),
Operation buttons 58, 5 for the second mode (for example, tuner)
9, 60 are installed alternately at equal intervals. Further, the disc-shaped shutter plate 54 is provided with openings 61, 62, 63 arranged at a distance twice that of the operation button.

In this operation button holding device, when the shutter plate 54 is at the position shown in FIG. 9A, the operation buttons 55, 56, 57 for the first mode are exposed to the outside through the openings 61, 62, 63. (Hold release state), and the operation buttons 58, 59, 60 for the second mode are hidden by the shutter plate 54 (Hold state). Therefore, in this case, the first mode operation becomes possible and the second mode operation becomes impossible.

When the shutter plate 54 is switched from the position of FIG. 9A to the position of FIG. 9B rotated by 45 degrees in the arrow direction, the operation buttons 58, 59, 60 for the second mode are activated. The openings 61, 62, 63 are exposed to the outside (hold release state), and the operation buttons 55, 56, 57 for the first mode.
Is hidden by the shutter plate 54 (holding state). Therefore,
In this case, the second mode operation becomes possible and the first mode operation becomes impossible.

Incidentally, such switching of the operation modes is carried out by the shutter plates 41, 45, 5 of the above-mentioned Embodiments 2, 3, and 4.
It is also possible to use 0.

[0022]

As described above, according to the operation button holding device of the portable electronic device of the present invention, the state in which the operation button is hidden by the shutter plate is the hold state, and the operation button hidden by the shutter plate is Since the state of being exposed to the outside is the hold release state, it becomes easy to determine whether the operation button is in the hold state or the hold release state.

Since the held operation button is hidden by the shutter plate and cannot be touched,
The erroneous operation prevention performance is significantly improved.

[Brief description of drawings]

FIG. 1 is an external perspective view of a portable electronic device (headphone stereo) including an operation button hold device according to a first embodiment of the present invention.

FIG. 2 is a plan view of an operation button holding device as viewed from inside a device case of the portable electronic device.

FIG. 3 is a vertical sectional side view of the operation button holding device.

FIG. 4 is a plan view showing a hold release state and a hold state of the operation button holding device.

FIG. 5 is a vertical cross-sectional side view of essential parts showing a hold release state and a hold state of the operation button holding device.

FIG. 6 is a plan view showing a hold release state and a hold state of the operation button hold device according to the second embodiment of the present invention.

FIG. 7 is a plan view showing a hold release state and a hold state of the operation button hold device according to the third embodiment of the present invention.

FIG. 8 is a plan view showing a hold release state and a hold state of the operation button holding device according to the fourth embodiment of the present invention.

FIG. 9 is a plan view showing a hold release state and a hold state of the operation button holding device according to the fifth embodiment of the present invention.

FIG. 10 is an external perspective view showing a conventional portable electronic device (headphone stereo).

[Explanation of symbols]

12 device case 13, 41, 45, 50, 54 shutter plate 13A support shaft 6-8, 11, 42-44, 46-49, 51-53,
55-60 operation buttons

Claims (1)

[Claims] 1. A shutter plate mounted on a device case so as to be rotatable about a support shaft, and when the shutter plate is rotated about the support shaft in a specific direction by a predetermined angle, the shutter plate is attached to the device case. The attached operation button is hidden by the shutter plate and mechanically held,
Further, when the shutter plate is rotated about the support shaft in a specific direction by a predetermined angle, the operation button is exposed to the outside, and the hold is released. apparatus.