JP2006216485A - Switch device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switch device which outputs an operating signal according to rotation operation and pushing operation and in which a gear to transmit the rotation of a dial knob to a variable resistor is eliminated. <P>SOLUTION: A slider 6 making a reciprocating motion is arranged at the outside of operating region of a connecting part 33 of a rotating rotor 3, and interference of the connecting part 33 and the slider 6 at the time of reciprocating motion of the slider 6 is avoided, thereby, a rotating axis 32 can be arranged at the rotation center of the rotor 3. And the variable resistor 5 is directly jointed to the rotating axis 32. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a switch device that outputs an operation signal in response to a rotation operation and a push operation, and is applied to, for example, an operation panel of an automotive air conditioner.

Conventionally, as a switch device, a push operation member that is pushed in the axial direction of the rotation operation member is disposed inside the rotation operation member, the rotation position of the rotation operation member is detected by the rotation position detection member, and the push operation is performed. A device that detects a pushing operation of the operating member with a pushing detection member has been proposed (for example, see Patent Document 1).
JP 2001-184966 A

  However, the conventional switch device has a structure in which a push detection member (for example, a switch) is arranged directly below the push operation member so that the push detection member directly detects the push operation of the push operation member. It is common.

  In this case, if the rotational position detection member (for example, a variable resistor) is also arranged immediately below the push operation member, a portion that transmits the rotation of the rotation operation member to the rotation position detection member easily interferes with the push detection member. The rotation position detection member is arranged outside the push operation member.

  As a result, the rotational center between the rotational operation member and the rotational position detection member is displaced, and thus a gear for transmitting the rotation of the rotational operation member to the rotational position detection member is required. Was necessary.

  The present invention has been made in view of the above points, and an object of the present invention is to eliminate the need for a gear that transmits the rotation of the rotation operation member to the rotation position detection member.

  In order to achieve the above object, according to the first aspect of the present invention, a rotation operation member (3, 4) having a cylindrical portion (31) and being rotated within a predetermined rotation range (θ), and a rotation operation member A rotation position detection member (5) that rotates in conjunction with (3, 4) and detects the rotation position of the rotation operation member (3, 4); and a rotation operation member ( 3 and 4), and a pushing operation member (6, 7) that is pushed in the axial direction, and a pushing detection member (8) that detects the pushing operation of the pushing operation member (6, 7). In the switch device, the rotation operation members (3, 4) connect the rotation shaft (32) provided at the rotation center of the rotation operation members (3, 4), and the cylindrical portion (31) and the rotation shaft (32). The rotation position detecting member (5) is arranged at the rotation center of the rotation operation members (3, 4). Coupled between the rolling axis (32), pushing the operating member (6, 7), characterized in that it is placed outside the working area of the connecting portion (33).

  According to this, since the rotation centers of the rotation operation member and the rotation position detection member can be matched while avoiding interference, a gear for transmitting the rotation of the rotation operation member to the rotation position detection member can be eliminated. . Therefore, it is possible to reduce costs by eliminating gears, reduce costs by eliminating grease application when gears are eliminated, reduce assembly man-hours by eliminating gears, and eliminate gear design man-hours by eliminating gears.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.

  An embodiment of the present invention will be described. 1 is a cross-sectional view of a switch device according to an embodiment, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is an exploded perspective view of the switch device of FIG. It is the perspective view seen from a different angle.

  The switch device includes a reflector 1 formed integrally with a case (not shown) of an operation panel, and a printed circuit board 2 is arranged on the back surface (lower side in FIG. 1) of the reflector 1. The printed circuit board 2 is fixed to the operation panel case by fastening means such as screws (not shown).

  A resin rotor 3 is rotatably held in the reflector 1. A resin dial knob 4 formed in a cylindrical shape is coupled to the surface of the rotor 3 (above the paper surface in FIG. 1). The dial knob 4 is exposed outside the case of the operation panel and is manually rotated. The rotor 3 and the dial knob 4 have a rotation range θ of about 120 ° in this embodiment. Rotate with. The rotor 3 and the dial knob 4 correspond to the rotation operation member of the present invention.

  The rotor 3 includes a rotor cylinder part 31 formed in a substantially cylindrical shape, and the rotor cylinder part 31 is held by the reflector 1. Further, the rotor 3 includes a rotation shaft 32 provided at the rotation center of the rotor 3 and a plate-like connection portion 33 that connects the rotor cylinder portion 31 and the rotation shaft 32. A click ball B and a spring S are disposed between the rotor 3 and the reflector 1 in order to give a click feeling when the rotor 3 and the dial knob 4 are rotated.

  The rotating shaft 32 extends through the printed circuit board 2 to the back surface side of the printed circuit board 2 and has a D-shaped cross section near the tip. A variable resistor 5 is mounted on the back side of the printed circuit board 2 at a position coinciding with the rotation center of the rotor 3, and rotates in a D-shaped hole formed in the center of the variable resistor 5. A section D-shaped portion of the shaft 32 is fitted, and the rotary shaft 32 and the variable resistor 5 are coupled.

  Incidentally, the electric resistance value of the variable resistor 5 changes according to the rotational position. More specifically, the variable resistor 5 rotates in conjunction with the rotor 3 and the dial knob 4 to rotate the rotor 3 and the dial knob 4. The position is detected. Therefore, the variable resistor 5 corresponds to the rotational position detection member of the present invention.

  A resin slider 6 is disposed in the rotor cylinder portion 31. A resin-made push knob 7 formed in a disk shape is coupled to the surface side of the slider 6. The push knob 7 is located in the opening of the dial knob 4 and is exposed outside the case of the operation panel. The slider 6 and the push knob 7 are manually moved in the axial direction of the rotor 3 and the dial knob 4. It is designed to be pushed. The slider 6 and the push knob 7 correspond to the push operation member of the present invention.

  The slider 6 includes a cylindrical slider first tube portion 61 provided on the front surface side, and a slider second tube portion 62 having a substantially crescent-shaped cross section extending from the slider tube portion 61 toward the printed circuit board 2 side. ing.

  The reflector 1 includes a guide portion 11 having a substantially crescent-shaped cross section, and the guide portion 11 is disposed in the rotor cylinder portion 31. The second slider cylinder 62 is slidably inserted into the guide 11.

  On the surface side of the printed circuit board 2, a tact switch 8 and an LED 9 as a light source for illumination are arranged. The tact switch 8 is disposed at a position facing the bottom of the second slider cylinder 62 and detects the pressing operation of the slider 6 and the push knob 7. The slider 6 and the push knob 7 are moved downward in FIG. When the pressing operation is performed, the bottom portion of the slider second cylindrical portion 62 comes into contact with the tact switch 8 to apply a pressing force, and the contact of the tact switch 8 is closed. Therefore, the tact switch 8 corresponds to a push detection member of the present invention.

  Here, if the space through which the connecting portion 33 passes when the rotor 3 is rotated in the entire rotation range θ is the operating region of the connecting portion 33, the slider 6 is disposed outside the operating region of the connecting portion 33. ing. More specifically, the slider first tube portion 61 is shifted in the reciprocating direction of the slider 6 with respect to the connecting portion 33, and the slider second tube portion 62 is positioned outside the rotation range of the connecting portion 33. Thereby, interference with the connection part 33 and the slider 6 when the slider 6 reciprocates is avoided.

  According to the present embodiment, the rotation center of the rotor 3 and the dial knob 4 and the variable resistor 5 can be matched while avoiding interference between the connecting portion 33 and the slider 6. It is possible to eliminate the need for a gear for transmitting the signal to the variable resistor 5. Therefore, it is possible to reduce costs by eliminating gears, reduce costs by eliminating grease application when gears are eliminated, reduce assembly man-hours by eliminating gears, and eliminate gear design man-hours by eliminating gears.

  Incidentally, the switch device of the present embodiment can be applied to an operation panel of an automotive air conditioner. Then, for example, on / off of the automotive air conditioner is controlled based on the output signal of the tact switch 8 by the pressing operation of the slider 6 and the push knob 7, and the variable resistor 5 by the rotating operation of the rotor 3 and dial knob 4. Based on the output signal, the indoor temperature of the automotive air conditioner can be set.

It is sectional drawing of the switch apparatus which concerns on one Embodiment of this invention. It is sectional drawing which follows the AA line of FIG. It is a disassembled perspective view of the switch apparatus of FIG. It is the perspective view which looked at the rotor of FIG. 3 from a different angle.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 3 ... Rotor (rotation operation member), 4 ... Dial knob (rotation operation member), 5 ... Variable resistor (rotation position detection member), 6 ... Slider (push operation member), 7 ... Push knob (push operation member) ), 8... Tact switch (pushing detection member), 31... Rotor cylinder, 32.

Claims (1)

A rotation operation member (3, 4) having a cylindrical portion (31) and rotated within a predetermined rotation range (θ);
A rotation position detection member (5) that rotates in conjunction with the rotation operation members (3, 4) and detects a rotation position of the rotation operation members (3, 4);
A push operation member (6, 7) disposed in the cylindrical portion (31) and pushed in the axial direction of the rotation operation member (3, 4);
In a switch device comprising a push detection member (8) for detecting a push operation of the push operation member (6, 7),
The rotation operation members (3, 4) connect the rotation shaft (32) provided at the rotation center of the rotation operation members (3, 4), and the cylindrical portion (31) and the rotation shaft (32). A connecting portion (33)
The rotational position detection member (5) is disposed at the rotational center of the rotational operation member (3, 4) and coupled to the rotational shaft (32),
The switch device, wherein the push operation members (6, 7) are arranged outside an operation region of the connecting portion (33).

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