JP2007012286A - Switch device and remote control transmitter using the same - Google Patents

Abstract

An object of the present invention is to provide a switch device mainly used for operating various electronic devices and a remote control transmitter using the switch device, which can be reliably operated with a simple configuration.
A switch device 26 is formed by winding a coiled spring 25 around the outer periphery of a mounting shaft 24B of an operating body 24 mounted on the outer periphery of a lever 2 of a switch 1, thereby forming a spring 25 on a stepped portion 24E at the lower end. Can be mounted with a single touch by pressing the mounting shaft 24B wound around the lever 2 around the outer periphery of the lever 2, and the entire inner periphery of the hollow hole 24C of the mounting shaft 24B is tightened and closely adhered to the entire outer periphery of the lever 2 by the spring 25. Since rattling is eliminated, a switch device that can be reliably operated with a simple configuration and a remote control transmitter using the switch device can be obtained.
[Selection] Figure 1

Description

  The present invention relates to a switch device mainly used for operating 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 more sophisticated and diversified, switch devices and remote control transmitters that operate these devices can be operated in a variety of ways and can be reliably operated. Is required.

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

  FIG. 5 is a cross-sectional view of a conventional remote control transmitter. In FIG. 5, reference numeral 1 denotes a switch in which a lever 2 protrudes upward from a case 3 made of insulating resin so that the lever 2 can be tilted. The movable contact piece (not shown) housed in the case 3 is brought into contact with and separated from a plurality of fixed contact pieces (not shown) by tilting to the side, and an electric signal is output from the terminal portion. Has been.

  An operation body 4 made of an insulating resin is provided with a substantially cylindrical mounting shaft 4B protruding from the lower surface of the substantially disk-shaped operation portion 4A. The mounting shaft 4B is mounted on the outer periphery of the lever 2 of the switch 1. The switch device 5 is configured.

  Reference numeral 6 denotes a wiring board in which a plurality of wiring patterns (not shown) are formed on the upper and lower surfaces. The switch 1 is mounted on the upper surface of the wiring board 6, and the terminal portion of the switch 1 is connected to the wiring pattern by soldering or the like. Has been.

  Further, 7 is a sheet-like pressing body such as rubber, which is placed on the upper surface of the wiring board 6 and provided with a plurality of keys 7A having a substantially dome-shaped thin portion, and the lower surface of the key 7A is movable by carbon or the like. A contact 8 is formed.

  A plurality of fixed contacts 9 are formed on the upper surface of the wiring board 6 so as to face the movable contacts 8 with a predetermined gap, and a remote control signal is provided on the lower surface of the wiring board 6 by an electronic component such as a light emitting diode. And a control means 11 such as a microcomputer connected to the terminal portion of the switch 1 and the fixed contact 9 through a wiring pattern.

  Reference numeral 12 denotes an insulating resin casing, and reference numeral 13 denotes an insulating resin cover. The operating portion 4A of the operating body 4 is located on the left side of the casing 12 from the opening hole of the cover 13 attached to the casing 12. The keys 7A of the pressing body 7 protrude upward from the through holes, and the casing 12 covers the upper surface of the wiring board 6 to constitute a remote control transmitter.

  In the above configuration, when the operating portion 4A of the operating body 4 is tilted back and forth and left and right, the lever 2 with the mounting shaft 4B mounted on the outer periphery is tilted back and forth and left and right. Done.

  When the predetermined key 7A is pressed, the substantially dome-shaped thin portion is elastically deformed, the movable contact 8 moves downward, contacts the fixed contact 9, and the plurality of fixed contacts 9 are electrically connected and separated. Done.

  Then, the control means 11 transmits an infrared remote control signal from the transmission means 10 in response to the electrical contact / separation of the switch 1 or the fixed contact 9 by the tilting operation of the operation body 4 or the pressing operation of the key 7A. By pressing the key 7A, the volume or temperature of a TV, video, air conditioner, etc. is increased or decreased, or the channel selection is changed. The tilting operation of the operation body 4 can be used to select a menu displayed on the screen. Remote operation is performed.

  When the operating body 4 of the switch device 5 is tilted, if the clearance between the inner periphery of the mounting shaft 4B and the outer periphery of the lever 2 is large, rattling occurs between the lever 2 and the mounting shaft 4B attached thereto. Since the operation is uncertain, it is necessary to manage these dimensions so that the gap is almost zero, or to fix them with an adhesive or the like.

As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
JP 2000-217175 A

  However, in the conventional switch device and remote control transmitter described above, in order to prevent the lever 2 of the switch 1 and the mounting shaft 4B of the operating body 4 from rattling and to perform a reliable tilting operation of the switch device 5, Since it is necessary to manage the dimensions of the mounting shaft 4B to be mounted thereon and to fix them with an adhesive or the like, there is a problem that it takes time and effort to manufacture the component parts and the switch device, and the cost becomes high.

  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 simple configuration and a remote control transmitter using the switch device.

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

  According to the first aspect of the present invention, the switch device is configured by winding a coiled spring around the outer periphery of the mounting shaft of the operating body mounted on the outer periphery of the lever of the switch, and the spring is mounted on the lower end. By simply press-fitting the mounting shaft to the outer circumference of the lever, it can be mounted with a single touch, and the inner circumference of the mounting shaft is tightened and closely adhered to the outer circumference of the lever by a spring, eliminating rattling. It has the effect that a possible switch device can be obtained.

  According to a second aspect of the present invention, the control means is connected to the switch of the switch device according to the first aspect, and the control means transmits the remote control signal from the transmission means in accordance with the electrical connection / disconnection of the switch. The transmitter is configured, and has an effect that a remote control transmitter capable of reliable operation with a simple configuration can be realized.

  As described above, according to the present invention, it is possible to obtain an advantageous effect that a switch device capable of reliable operation with a simple configuration 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)
1 is a cross-sectional view of a remote control transmitter according to an embodiment of the present invention, FIG. 2 is a partial cross-sectional view thereof, and FIG. 3 is a partially exploded perspective view thereof. In FIG. The switch 1 protrudes upward from the case 3 so as to be tilted. The switch 1 is configured so that a movable contact piece (not shown) housed in the case 3 is fixed to a plurality of fixed contacts by tilting the lever 2 back and forth and left and right. It is formed so as to be in contact with and separated from a piece (not shown) and to output an electric signal from the terminal portion.

  As shown in FIG. 3, the lever 2 of the switch 1 is formed of a lower cylindrical portion 2A and an upper semi-cylindrical portion 2B. Except for a so-called neutral return type that automatically returns to the original neutral position by a spring (not shown) mounted in the case 3.

  Reference numeral 24 denotes an operating body made of an insulating resin such as polystyrene or ABS, and a substantially cylindrical mounting shaft 24B is provided on the lower surface of the substantially disk-shaped operating portion 24A. The mounting shaft 24B projects into the hollow hole 24C of the mounting shaft 24B. The lever 2 is inserted, and the operating body 24 is attached to the switch 1.

  As shown in FIG. 2, the hollow hole 24 </ b> C of the mounting shaft 24 </ b> B is formed in a cylindrical shape on the lower side and a semi-cylindrical shape on the upper side to match the shape of the lever 2. By fitting the semi-cylindrical portion of the hole 24 </ b> C, the operation body 24 is prevented from rotating with respect to the lever 2.

  Further, as shown in FIG. 3, the mounting shaft 24B is provided with a plurality of slits 24D, and a lower end step portion 24E smaller than the mounting shaft 24B is formed at the lower end. A coiled spring 25 made of steel wire or copper alloy wire having a slightly smaller diameter than the outer diameter of the portion 24E is wound and attached.

  That is, the stepped portion 24E formed with a plurality of slits 24D is fastened to the cylindrical portion 2A of the lever 2 by the spring 25, and the entire inner periphery of the hollow hole 24C of the mounting shaft 24B is in close contact with the entire outer periphery of the lever 2. The operating body 24 is attached to the lever 2 in a state where there is no tack, and the switch device 26 is configured.

  A step 24E is provided at the lower end of the mounting shaft 24B, and the step 25E at the lower end is fastened to the cylindrical portion 2A below the lever 2 by the spring 25, whereby the spring 25 is wound around the intermediate portion of the mounting shaft 24B and the upper half Compared to the case of tightening to the cylindrical portion 2B, the entire inner periphery of the hollow hole 24C can be more securely brought into close contact with the entire outer periphery of the lever 2.

  Further, such a switch device 26 can be operated with one touch of the operating body 24 to the lever 2 simply by press-fitting the operating body 24 having the spring 25 wound around the step 24E at the lower end of the mounting shaft 24B onto the outer periphery of the lever 2 from above. Since it can be mounted, it is formed so that it can be easily manufactured.

  Reference numeral 6 denotes a wiring board made of paper phenol, glass-filled epoxy or the like, and a plurality of wiring patterns (not shown) are formed on the upper and lower surfaces by copper foil or the like, and as shown in FIG. The switch 1 is mounted on the terminal 1 and the terminal portion of the switch 1 is connected to the wiring pattern by soldering or the like.

  Reference numeral 7 denotes a sheet-like pressing body such as rubber or elastomer, which is placed on the upper surface of the wiring board 6 and provided with a plurality of keys 7A having a substantially dome-shaped thin portion. Thus, the movable contact 8 is formed.

  Furthermore, a plurality of fixed contacts 9 are formed on the upper surface of the wiring board 6 so as to face the movable contacts 8 with a predetermined gap, and a remote control signal is provided on the lower surface of the wiring board 6 by an electronic component such as a light emitting diode. And a control means 11 such as a microcomputer connected to the terminal portion of the switch 1 and the fixed contact 9 through a wiring pattern.

  Reference numeral 12 denotes a substantially box-like casing made of an insulating resin such as polystyrene or ABS, and 13 denotes a cover made of the same insulating resin. An operating portion of the operating body 24 is opened from an opening hole of the cover 13 attached to the casing 12. As for 24A, the key 7A of the pressing body 7 protrudes upward from the through-hole on the left side of the casing 12, and the casing 12 covers the upper surface of the wiring board 6 to constitute a remote control transmitter.

  In the above configuration, when the operating portion 24A of the operating body 24 is tilted back and forth and left and right, the lever 2 with the mounting shaft 24B mounted on the outer periphery is tilted back and forth and left and right, and the switch 1 is electrically connected and disconnected accordingly. Done.

  At this time, as described above, the coiled spring 25 is wound around the step 24E at the lower end of the mounting shaft 24B of the operating body 24, and the entire inner periphery of the hollow hole 24C of the mounting shaft 24B is the entire outer periphery of the lever 2. Since the operating body 24 is mounted on the lever 2 so as not to rattle or the like, the switch 1 is configured to be surely tilted.

  Then, in response to the electrical contact / separation of the switch 1 caused by the tilting operation of the operating body 24, the control unit 11 transmits an infrared remote control signal from the transmission unit 10 to a device such as a television, a video, or an air conditioner. Various remote operations such as selection of the menu displayed on the screen, enlargement / reduction of the screen, and fast forward / rewind of the tape are performed.

  When the predetermined key 7A is pressed, the substantially dome-shaped thin portion is elastically deformed, the movable contact 8 moves downward, contacts the fixed contact 9, and the plurality of fixed contacts 9 are electrically connected and separated. A remote control signal corresponding to this is transmitted, and for example, the volume or temperature of a television, video, air conditioner or the like is increased or decreased, or the channel selection is switched.

  As described above, according to the present embodiment, the switch device 26 is configured by winding the coiled spring 25 around the mounting shaft 24B of the operating body 24 mounted on the outer periphery of the lever 2 of the switch 1, thereby forming the lower end. The mounting shaft 24B, in which the spring 25 is wound around the step portion 24E, can be mounted with one touch by simply press-fitting the outer periphery of the lever 2, and the entire inner periphery of the hollow hole 24C of the mounting shaft 24B can be attached to the entire outer periphery of the lever 2 by the spring 25. Therefore, it is possible to obtain a switch device that can be reliably operated with a simple configuration and a remote control transmitter using the switch device.

  In the above description, the step portion 24E is provided at the lower end of the mounting shaft 24B, and the spring 25 is wound around the outer periphery. However, as shown in the partially exploded perspective view of FIG. The slit 24D is provided with a plurality of recesses 24F having a diameter smaller than that of the mounting shaft 24B at the lower end, and a spring 25 is wound around the recess 24F so that the mounting shaft 24B is fastened to the lever 2. Can be implemented.

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

Sectional drawing of the remote control transmitter by one embodiment of this invention Partial sectional view of the same Partial exploded perspective view Partially exploded perspective view according to another embodiment Cross-sectional view of a conventional remote control transmitter

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Switch 2 Lever 2A Cylindrical part 2B Semi-cylindrical part 3 Case 6 Wiring board 7 Press body 7A Key 8 Movable contact 9 Fixed contact 10 Transmission means 11 Control means 12 Case 13 Cover 24 Operation body 24A Operation part 24B Mounting shaft 24C Hollow hole 24D Slit 24E Stepped portion 24F Recessed portion 25 Spring 26 Switch device

Claims (2)

A switch that performs electrical contact and separation according to the tilting operation of the lever, and a substantially cylindrical mounting shaft that protrudes from the lower surface is composed of an operating body mounted on the outer periphery of the lever. A switch device with a spring. A remote control transmitter comprising the switch device according to claim 1 and control means connected to the switch of the switch device, wherein the control means transmits a remote control signal from the transmission means in accordance with the electrical connection / disconnection of the switch.

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