JPH0747026Y2 - Remote control device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device.

[0002]

2. Description of the Related Art A television receiver or the like which is controlled by a remote control device is often used. However, in order to increase the number of controllable functions in such a television receiver, the keyboard key It is necessary to provide a changeover switch so as to generate different signals even if there are a large number of inputs or common keyboard inputs. However, in the former case, there is a drawback that it becomes large, and in the latter case, various kinds of displays are written around each key top of one keyboard and it becomes difficult to understand, and operability is poor. There is a drawback that becomes.

In order to solve this problem, Jitsuko Sho 61-23742
The publication describes a display plate interlocking with a function changeover switch interposed between a decorative plate having a see-through window and a key switch. Not only is it complicated, but since the key switch is pressed through the two plates, the decorative plate and the display plate, the usability is not always good.

[0004]

SUMMARY OF THE INVENTION In view of the above drawbacks, the present invention provides a remote control device with excellent usability that can switch and display the display corresponding to each push button according to the selection of a plurality of modes. It is an object.

[0005]

In order to solve the above-mentioned problems, according to the present invention, a casing having an opening on its upper surface, a plurality of openings, and a see-through push button for each opening are provided. A circuit that is internally mounted in the casing by forming a movable body that is freely inserted into and detached from the opening of the casing and is slidably attached to the movable body, and an electric circuit for a pressure switch having a plurality of a pair of adjacent switch electrodes. A substrate, a pressing switch device integrally provided with a plurality of contacts corresponding to the pair of switch electrodes, and a changeover switch for switching the function of the electric circuit to a plurality of modes in association with sliding of the movable body. A remote control device is constituted by a display plate, which is provided in close proximity between the push button and the push switch device and has a plurality of displays corresponding to each push button according to mode switching.

[0006]

According to the above construction, by sliding the movable body, the changeover switch interlocking with the movable body can switch the electric circuit for the pressure switch of the circuit board to a plurality of modes and display the plurality of modes. It appears directly below the push button. By selecting an arbitrary function from this display and pressing the push button, the press switch corresponding to this push button is pressed via the display plate.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3, reference numeral 1 denotes a synthetic resin casing of a remote control device, which is an upper case 2 whose lower surface is open, and a lower case whose upper surface is open and which has locking holes 34 on both opposite sides. 3 and 3 are integrated by fitting. The upper case 2 has a paragraph 4 having an opening 5 on the upper surface thereof, and laterally long guide holes 6 on opposite side surfaces.
And a locking portion 35 corresponding to the locking hole 34. Reference numeral 7 denotes a movable body which is attached to and detached from the upper case 2 in a corresponding manner to the opening 5 and is slidably coupled thereto.
A panel portion 8 corresponding to the opening 5, and a pair of holding legs 10 provided with protrusions 11 corresponding to the guide holes 6 on the inner side of the tip and projecting downward from both side ends of the panel portion 8. It is composed by.

Reference numeral 12 is a transparent push button, and a fixing portion 13 which is connected to the back surface of the panel portion 8 and a flange 15 which has an upper portion loosely inserted into the opening 9 and which corresponds to a top plate portion 22 of a pressing switch 20 described later. Are integrally formed with a plurality of swinging parts 14 provided on both sides of the lower part. Reference numeral 16 is a circuit board made of a copper clad laminate for printed wiring boards, which is provided with a press switch electric circuit 18 having a plurality of adjacent switch electrodes 17, and is fixed to a pedestal 19 protruding from the bottom of the lower case 3. .

Reference numeral 21 is a press switch device formed by integrally connecting a plurality of press switches 20.
The base portion 24 connecting the respective switches, the top plate portion 22 at the upper end, and the thin funnel-shaped portion 23 that interposes the base portion 24 and the top plate portion 22 are integrally formed of a silicone rubber material. A contact 25 of a carbon material corresponding to the switch electrode 17 is provided on the back side of the top plate portion 22. The funnel-shaped portion 23 maintains a space between the contact 25 and the switch electrode 17 when the top plate 22 is not pressed, and when the top plate 22 is pressed, a click sensation is generated and the contact 25 and the electrode 17 are electrically deformed. Connected to each other, the top plate 2
When the pressing of 2 is released, the original shape is restored and the electrical connection is broken. In FIGS. 1 and 2, there are push buttons that can directly select channels 1 to 12, push buttons for turning power on / off, push buttons for increasing / decreasing the volume, and the like in the portions not shown in the drawings. And contact 2
The structure can be simplified by providing the same shape as that of No. 5 and extending the silicone rubber material so as to be formed integrally with the pressing switch device 21.

Reference numeral 26 is a changeover switch, which is the circuit board 16
When the movable body 7 is slid in the direction shown by the solid line arrow, the projection 28 protruding from the back surface of the panel portion 8 presses the knob 27 (not shown), and as shown in the figure, it is not pressed in two steps. Then, the function of the electric circuit 18 is switched to a plurality of modes (two types). The plurality of modes are, for example, a television receiver (TV) and a video tape recorder (VTR), and a display example of a push button corresponding to the TV mode is video input switching (video 1,
There are video 2), channel preset (setting), audio switching, and the like, and as display examples of the push buttons corresponding to the VTR mode, display examples of recording, reproduction, fast forward, rewind, and the like may be associated.

Reference numeral 29 denotes a display plate, which is fixed to a pedestal 30 projecting from the bottom of the lower case 4 and penetrating the circuit board 16, and the bottom of the push button 12 and the top plate 22 of the push switch device 21.
And a display 31 to 32 corresponding to each push button 12 according to the mode switching by sliding the movable body 7 on the surface, which is formed by an opaque and flexible thin plate such as a synthetic resin, which is interposed between the push buttons 12 and. Is equipped with. This display 31-32
Is displayed along the sliding direction of the movable body 7, and when it is slid to one side, the display 31 appears immediately below the corresponding push button 12, and when it is slid to the other side, the display 32 appears. Incidentally, 33 is a slit for reducing the repulsive force corresponding to the pressing of the push button 12. Also, the display 31
32 may be formed on the back surface by making the base material of the display plate 29 a transparent material.

FIG. 4 shows a method of supporting the movable body 7 by the upper case 2 and the sliding movable body 7 corresponding to the mode switching so that the flange portion 15 of the push button 12 can surely correspond to the top plate portion 22 of the push switch 20. The former shows a configuration in which they are locked in stages. The former is a horizontally long guide hole 6 provided on both sides of the upper case 2 along the sliding direction of the movable body 7, and a movable hole corresponding to the guide hole 6. Clamping leg 10 of body 7
The movable range of the movable body 7 can be determined by the length of the guide hole 6. The latter includes a plurality of notches 36 formed in at least one upper edge of the lower case 3 along the sliding direction of the movable body 7, and one end on the back surface of the panel portion 8 of the movable body 7 corresponding to the notches 36. It is composed of a substantially V-shaped spring piece 37 to be fixed, and the mutual intervals of the notches 36 are made to correspond to the mutual intervals of the indications 31 and 32, and are arranged at predetermined positions. When the curved portion falls into the notch portion 36, the sliding movable body 7 is locked in stages and the collar portion 15 of the push button 12 is locked.
And the top plate portion 22 of the push switch 20 correspond to each other.

FIG. 5 shows an example of a partially omitted electric circuit diagram of the remote control device, in which 51 is a known remote control pulse generation circuit, for example, for generating an 8-bit pulse width coded signal. The sub-carrier having a frequency of about 38 KHz is oscillated, and this sub-carrier is modulated by a remote control pulse and output by the transistor 53 to drive the infrared light emitting diode 52, a television receiver, a VTR or the like. The light emitting diode 52 emits a remote control infrared signal corresponding to the mode switched by the changeover switch 26 in accordance with each device such as the electronic device of FIG.

[0014]

As described above, according to the present invention, in the case of the embodiment, the number of push buttons corresponding to the two modes can be reduced to 1/2 in the case of the embodiment, and it can be detachably attached to the housing. Since the mode can be switched by slightly sliding the movable body mounted on the, it is possible to obtain the remote control device which is excellent in usability and can display the function switching. Also, since the movable body can be easily removed from the housing,
For example, the operation test of the changeover switch or the like can be performed without disassembling the housing.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional plan view of a remote control device according to the present invention with some parts omitted.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged sectional view taken along the line BB of FIG.

FIG. 4 is a sectional view taken along the line CC of FIG.

FIG. 5 is a partially omitted electric circuit diagram of the remote control device of the present invention.

[Explanation of symbols]

 1 Housing 5 Opening 7 Movable Body 9 Opening Hole 12 Push Button 16 Circuit Board 17 Switch Electrode 18 Push Switch Electric Circuit 21 Push Switch Device 25 Contact Point 26 Changeover Switch 29 Display Board 31 Display 32 Display

Claims (1)

[Scope of utility model registration request] 1. A housing having an opening on its upper surface and a plurality of openings, and push-buttons which are transparent to the openings and are attached to and detached from the opening of the housing. A movable body that is movably mounted, a circuit board that forms a press switch electric circuit having a plurality of adjacent switch electrodes and is housed in the housing, and contacts that correspond to the pair of switch electrodes. And a pressing switch device integrally connected to each other, a changeover switch for switching the function of the electric circuit to a plurality of modes in association with sliding of the movable body, and a close proximity between the push button and the pressing switch device. A remote control device, which is interposed and has a display board having a plurality of displays corresponding to respective push buttons according to mode switching.