JP4844372B2 - Switch device and remote control transmitter using the same - Google Patents

Description

  The present invention relates to a switch device mainly used for operation of various electronic devices and a remote control transmitter using the switch device.

  In recent years, as electronic devices such as video, audio, and air conditioning have become highly functional and diversified, switch devices and remote control transmitters that operate these devices are also required to be capable of reliable operation with a good feel. Yes.

  Such a conventional switch device and a remote control transmitter using the switch device will be described with reference to FIGS.

  4 is a cross-sectional view of a conventional remote control transmitter, FIG. 5 is an exploded perspective view of the main part, in which 1 is a substantially box-shaped case made of insulating resin, 2 is an operating body made of insulating resin, A plurality of opening holes 1A are formed on the upper surface of the case 1, and a plurality of operation bodies 2 are mounted in the opening holes 1A so as to be movable up and down with the operation portion 2A protruding upward.

  A substantially square cylindrical guide wall 1B that protrudes downward with a slight gap from the outer periphery of the operating body 2 is provided on the outer periphery of the opening hole 1A of the case 1 and protrudes downward on the lower surface of the operating body 2. A pressing portion 2B is formed.

  Reference numeral 3 denotes a wiring board in which a plurality of wiring patterns (not shown) are formed on the upper and lower surfaces, and a plurality of fixed contacts 4 such as carbon are formed on the upper surface, and on the outer fixed contacts 4, A movable contact 5 made of a conductive metal plate having a substantially dome shape is placed opposite to the fixed contact 4 in the center with a predetermined gap to form a plurality of switch contacts.

  Further, reference numeral 6 denotes an elastic sheet such as rubber. The elastic sheet 6 is placed on the upper surface of the wiring board 3, and a thin portion 6A having a protrusion formed on the lower surface is provided above the movable contact 5 to provide a switch device. Is configured.

  Further, on the upper and lower surfaces of the wiring board 3, a transmission means 7 for transmitting a remote control signal by an electronic component such as a light emitting diode, or a control of a microcomputer or the like connected to the transmission means 7 or the fixed contact 4 via a wiring pattern Means 8 are formed.

  Reference numeral 9 denotes a substantially box-shaped cover made of an insulating resin. The cover 9 covers the lower surface of the case 1 in which the operation body 2 and the wiring board 3 are housed, and the case 1 and the cover 9 by screws (not shown) or the like. Is tightened and fixed to constitute a remote control transmitter.

  In the above configuration, when the operation unit 2A of the predetermined operation body 2 is pressed toward the electronic device that operates the remote control transmitter, the pressing unit 2B presses the movable contact 5 via the thin portion 6A of the elastic sheet 6. Therefore, the movable contact 5 is elastically deformed and inverted, the lower center surface comes into contact with the central fixed contact 4, and the outer and central fixed contacts 4 are electrically connected and separated.

  Then, the control means 8 transmits an infrared remote control signal from the transmission means 7 to the electronic device in accordance with the electrical contact / separation of the switch contact, for example, turning on / off the TV or video, switching the channel, The increase / decrease is performed by remote control.

  At this time, since the outer periphery of the opening 1A of the case 1 is provided with a substantially square cylindrical guide wall 1B that protrudes downward with a slight gap from the outer periphery of the operating body 2, the inclination of the operating body 2 is increased. The operation body 2 can be pressed with little backlash and the like.

  That is, by guiding the entire outer periphery of the operation body 2 with the entire inner periphery of the guide wall 1B having a length close to the outer periphery of the operation unit 2A, the operation body 2 can be prevented from tilting or rattling during operation. Even when the operating body 2 is pressed with a large force, the operating body 2 is prevented from entering the case 1 and can be reliably pressed.

As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
JP 2006-164871 A

  However, in the above-described conventional switch device and remote control transmitter, since the gap between the outer periphery of the operation body 2 is small and the operation body 2 is guided by the relatively long guide wall 1B, the operation body 2 and the case 1 If moisture such as coffee or juice adheres to the upper surface and flows from the opening hole 1A and then dried and solidifies in a slight gap with the guide wall 1B, this prevents the operating body 2 from moving up and down. However, there are problems that the operation feeling is impaired and that the operation body 2 does not move and it is difficult to perform the operation.

  The present invention solves such a conventional problem, and an object of the present invention is to provide a switch device capable of reliable operation with a good feel and a remote control transmitter using the switch device.

  In order to achieve the above object, the present invention has the following configuration.

The invention according to claim 1 of the present invention is a substantially box-shaped case having an opening hole formed on the upper surface, and a substantially box-shaped case having four corners, and is mounted in the opening hole of the case so as to be movable up and down. It consists of an operating body and a switch contact that electrically contacts and separates according to the vertical movement of the operating body, and has a cutout portion that opens downward from the lower surface of the opening hole on the four sides on the outer periphery of the opening hole of the case. , a substantially rectangular cylindrical shape of the four corners of the guide wall projecting downward is provided, the guide wall is obtained by forming the switch device so as to guide vertically movably four corners of the operating member, the four corners of the other cut-out portion The guide wall can prevent the operating body from tilting, rattling, sinking, etc., and even if beverage or the like flows from the opening hole, it flows out of the notch and solidifies in a slight gap with the guide wall. Because it reduces, reliable operation is possible with a good feel An effect that can be obtained switching device.

  According to a second aspect of the present invention, the control means is connected to the switch contact of the switch device according to the first aspect, and the control means transmits a remote control signal from the transmission means in accordance with the electrical contact / separation of the switch contact. Thus, the remote control transmitter is configured, and the remote control transmitter capable of reliable operation with a good touch can be realized.

  As described above, according to the present invention, it is possible to obtain an advantageous effect that a switch device that can be reliably operated with a good feeling and a remote control transmitter using the switch device can be realized.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  In addition, the same code | symbol is attached | subjected to the part of the structure same as the structure demonstrated in the term of background art, and detailed description is simplified.

(Embodiment)
FIG. 1 is a cross-sectional view of a remote control transmitter according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the main part, in which 11 is a substantially box-shaped case made of an insulating resin such as ABS or polystyrene. Reference numeral 2 denotes an operating body made of an insulating resin. A plurality of opening holes 11A are formed on the upper surface of the case 11, and the operating bodies 2 protrude upward in the opening holes 11A to move up and down. It is installed as possible.

  The outer periphery of the opening 11A of the case 11 is provided with a substantially rectangular tube-shaped guide wall 11B that protrudes downward with a slight gap from the outer periphery of the operating body 2, and notches are provided on the four surfaces of the guide wall 11B. 11C is formed, and a pressing portion 2B protruding downward is formed on the lower surface of the operating body 2.

  Reference numeral 3 denotes a wiring board such as paper phenol or glass-containing epoxy, and a plurality of wiring patterns (not shown) are formed on the upper and lower surfaces by copper foil or the like. Thus, a plurality of fixed contacts 4 are formed.

  Further, reference numeral 5 denotes a movable contact made of a conductive metal plate such as a copper alloy or the like having a substantially dome shape. A plurality of switch contacts are formed to face each other with a predetermined gap.

  Reference numeral 16 denotes an elastic sheet such as rubber or elastomer. A thin portion 16A having a protrusion formed on the lower surface of the elastic sheet 16 placed on the upper surface of the wiring board 3 is provided on the lower surface of the movable contact 5. A waterproof wall 11D protruding downward from the lower surface of the case 11 is elastically contacted inside the convex portion 16B formed on the outer periphery of the portion, thereby forming a switch device.

  Further, on the upper and lower surfaces of the wiring board 3, a transmission means 7 for transmitting a remote control signal by an electronic component such as a light emitting diode, or a control of a microcomputer or the like connected to the transmission means 7 or the fixed contact 4 via a wiring pattern Means 8 are formed.

  Further, 9 is a substantially box-shaped cover made of an insulating resin. This cover 9 covers the lower surface of the case 11 in which the operation body 2 and the wiring board 3 are housed, and the case 11 and the cover 9 by screws (not shown) or the like. Is tightened and fixed to constitute a remote control transmitter.

  In the above configuration, when the operation part 2A of the predetermined operation body 2 is pressed toward the electronic device that operates the remote control transmitter, the pressing part 2B presses the movable contact 5 via the thin part 16A of the elastic sheet 16. Therefore, the movable contact 5 is elastically deformed and inverted, the lower center surface comes into contact with the central fixed contact 4, and the outer and central fixed contacts 4 are electrically connected and separated.

  Then, the control means 8 transmits an infrared remote control signal from the transmission means 7 to the electronic device in accordance with the electrical contact / separation of the switch contact, for example, turning on / off the TV or video, switching the channel, The increase / decrease is performed by remote control.

  At this time, on the outer periphery of the opening hole 11A of the case 11, notches 11C are formed on four sides, and a substantially square cylindrical guide wall 11B protruding downward with a slight gap from the outer periphery of the operating body 2 is provided. Therefore, the pressing operation of the operating body 2 can be performed in a state where there is little inclination or rattling.

  That is, by guiding the entire four corners of the operating body 2 with the guide walls 11B that are relatively long and project at the four corners other than the notch portion 11C, it is possible to prevent the operating body 2 from being tilted or rattled during operation. Even if the operating body 2 is pressed with a somewhat large force, the operating body 2 is prevented from entering the case 11, and a reliable pressing operation is possible.

  Further, since notches 11C are formed on the four surfaces of the guide wall 11B, even when moisture such as coffee or juice drinks adheres to the operation body 2 or the upper surface of the case 11 and flows into the opening 11A. In this way, it is difficult for the operation body 2 to operate.

  That is, even if a beverage or the like flows from the opening hole 11A, the beverage immediately flows out from the notch 11C and remains in a slight gap with the guide wall 11B to be less solidified. Therefore, the operation feeling is prevented from being impaired and the operation body 2 does not move and it is difficult to perform the operation, so that a reliable operation can be performed with a good feeling.

  Further, the upper surface of the wiring board 3 is covered with an elastic sheet 16, and a waterproof wall 11D protruding downward from the lower surface of the case 11 is elastically contacted inside the convex portion 16B on the outer periphery of the elastic sheet 16, thereby providing a waterproof structure. Therefore, even when beverages or the like flow in as described above, they do not flow out onto the wiring board 3, prevent intrusion and adhesion to the fixed contact 4 and the movable contact 5, and ensure the switch contact. Electrical contact and separation can be performed.

  As described above, according to the present embodiment, the substantially cylindrical guide wall 11B protruding downward is provided on the outer periphery of the opening hole 11A of the case 11 in which the operating body 2 is mounted so as to be movable up and down, and the guide wall 11B. By forming the notch 11C in the guide wall 11B, the guide wall 11B other than the notch 11C can prevent the operation body 2 from being inclined, rattled, submerged, and the like. Since it is less likely to flow out of the portion 11C and solidify in a slight gap with the guide wall 11B, a switch device capable of reliable operation with a good feel and a remote control transmitter using the switch device can be obtained. Is.

  In the above description, the operation body 2 made of an insulating resin is used and the upper surface of the wiring board 3 is covered with the elastic sheet 16, but as shown in the cross-sectional view of FIG. When the operating portion 12A is pressed using the operating body 12 such as rubber or elastomer in which the operating portion 12A in which the contact point 15 is formed and the lower base portion 12B are connected by the elastic thin portion 12C, the elastic thin portion 12C is The present invention can also be implemented by a configuration in which the movable contacts 15 are brought into contact with the fixed contacts 4 that are elastically deformed and the fixed contacts 4 are electrically connected to and separated from each other.

  The switch device according to the present invention and the remote control transmitter using the switch device are capable of reliable operation with a good feeling, and are useful mainly for the operation of various electronic devices.

Sectional drawing of the remote control transmitter by one embodiment of this invention Exploded perspective view of the main part Sectional view according to another embodiment Cross-sectional view of a conventional remote control transmitter Exploded perspective view of the main part

Explanation of symbols

2, 12 Operation body 2A, 12A Operation part 2B Press part 3 Wiring board 4 Fixed contact 5, 15 Movable contact 7 Transmission means 8 Control means 9 Cover 11 Case 11A Opening hole 11B Guide wall 11C Notch part 11D Waterproof wall 12B Base part 12C Elastic thin part 16 Elastic sheet 16A Thin part 16B Convex part

Claims (2)

A substantially box-shaped case having an opening hole formed on an upper surface, a vertically movable mounted to the operation member in the opening hole of the casing in substantially box-having four corners, depending on the vertical movement of the operating body Te consist switch contacts for electrical connection and disconnection, to the opening hole periphery of the case, to form a notch that is open downward through the opening hole underside tetrahedral, substantially square tubular corner projecting downward A switch device in which a guide wall is provided, and the guide wall guides the four corners of the operation body to be movable up and down . A remote control transmission comprising: the switch device according to claim 1; and a control means connected to a switch contact of the switch device, wherein the control means transmits a remote control signal from the transmission means in accordance with the electrical contact / separation of the switch contact. Machine.

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