JP2011169178A - Switch device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switch device preventing malfunction by certainly switching on two switch portions at the same time. <P>SOLUTION: This switch device 1 includes a case 4, an operation knob 5 provided in the case 4 so as to be moved forward and backward, and the two switch portions 15 switched on in conjunction with the push-in movement of the operation knob 5. In the switch device, a hinge bar 7 having one end turnably pivotally supported in the case 4 is provided between the operation knob 5 and the switch portions 15, and the hinge bar 7 is provided with operation portions 7c simultaneously abutting on the two switch portions 15 when the other end of the hinge bar 7 is depressed by the operation knob 5 and the hinge bar 7 is rotated. The two switch portions 15 are juxtaposed in parallel to the rotating shaft direction of the hinge bar 7. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a switch device such as an engine start / stop switch installed on an instrument panel of a vehicle.

  Some recent vehicles include a smart ignition system that enables an engine to be started by an ID signal wirelessly transmitted from a portable device. In this smart ignition system, when the engine is stopped, when the engine start / stop switch provided on the instrument panel in the passenger compartment is operated, a request signal is transmitted from the vehicle authentication device to the portable device, The portable device that has received this request signal transmits its own ID signal to the vehicle authentication device.

  Then, the vehicle authentication device collates the ID code included in the received ID signal with the ID code stored in advance, and if they match, the engine can be started as authentication OK, and the engine start / stop is started. The engine is started by operating the switch. Further, if the engine start / stop switch is operated while the engine is being driven, the engine is stopped (see, for example, Patent Document 1).

JP 2004-314806 A

  In such a smart ignition system, if the contact point of the engine start / stop switch fails while the engine is running, the engine may stop against the driver's will.

  As a countermeasure to the above problem, if two engine switches are provided in the engine start / stop switch so that the engine can be started and stopped only when these two switches are turned on at the same time, one switch is turned on. Even if a failure occurs, the engine does not stop unexpectedly, and high safety can be ensured. In order to employ such a configuration, an operation knob held in a holder of the switch device so as to be able to advance and retreat, and two switch portions that are simultaneously turned ON by the end portions of the operation knob are required.

  However, in order to enable the operation knob to move forward and backward in the holder in the above configuration, a predetermined gap is required between the holder and the operation knob, and the driver presses the operation knob because of this gap. In some cases, the operation knob tilts in the holder and the two switch portions do not turn on at the same time. That is, when only one switch unit is turned on, failure processing is performed, and when two switch units are turned on, normal processing is performed. Therefore, there is a problem that the system malfunctions when the ON timings of the two switch units are shifted.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a switch device that can reliably turn on two switch sections simultaneously to prevent malfunction.

  In order to achieve the above object, the invention according to claim 1 includes a case, an operation knob provided in the case so as to be movable forward and backward, and two switch portions that are turned on in conjunction with the pushing movement of the operation knob. In the switch device provided, a hinge bar whose one end is pivotally supported in the case is provided between the operation knob and the switch, and the other end of the hinge bar is pressed by the operation knob. The hinge bar is provided with an operation portion that simultaneously contacts the two switch portions when the hinge bar rotates.

  According to a second aspect of the present invention, in the first aspect of the present invention, the two switch portions are arranged in parallel to the rotation axis direction of the hinge bar.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the case includes an opening that exposes a part of the operation knob to the outside on one end side and holds the operation knob so that the operation knob can be moved forward and backward. A substantially cylindrical holder and a base that closes the opening at the other end of the holder and includes the two switch parts are provided, and a shaft support part that pivotally supports the hinge bar is provided on the base. And

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the illumination light from the illumination light source provided in the case is passed through the hinge bar toward the operation knob. For this purpose, an opening is formed.

  According to the first aspect of the invention, since the two switch portions are simultaneously pressed by the hinge bar pivotally supported, the operation knob is pushed in a tilted state and the hinge bar is pressed. However, one end of the hinge bar is pivotally supported and only rotates on a predetermined rotation trajectory, and the two switch parts are turned on at the same time, and only one of the switch parts is turned on. Is prevented from malfunctioning. That is, the two switch sections can be reliably turned on simultaneously without being affected by the tilt of the operation knob.

  According to the second aspect of the present invention, since the two switch portions are arranged in parallel to the rotation axis direction of the hinge bar, the two switch portions can be arranged at equal distances from the shaft support portion of the hinge bar. For this reason, the operation stroke of the operation part of the hinge bar with respect to each switch part can be set equally, and two switch parts can be reliably turned ON simultaneously.

  According to the third aspect of the present invention, the hinge bar can be pivotally supported on the base side instead of the substantially cylindrical holder side, and the structure of the pivotal support portion that pivotally supports the hinge bar can be simplified.

  According to the fourth aspect of the present invention, since the two switch portions are operated by the hinge bar, even if the hinge bar is enlarged, an opening is formed in the hinge bar so that the illumination light from the light source is directed to the operation knob side. Therefore, the hinge bar can be arranged between the operation knob and the light source, and the degree of freedom in design is increased.

It is a disassembled perspective view of the switch apparatus which concerns on this invention. It is a sectional side view of the switch device concerning the present invention. It is a plane sectional view of a switch device concerning the present invention. It is the sectional view on the AA line of FIG. It is a front view which removes and shows the operation knob of the switch apparatus which concerns on this invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is an exploded perspective view of the switch device according to the present invention, FIG. 2 is a side sectional view of the switch device, FIG. 3 is a plan sectional view of the switch device, and FIG. 4 is a sectional view taken along line AA in FIG. 5 is a front view showing the switch device with the operation knob removed.

  A switch device 1 according to the present embodiment is an engine start / stop switch installed on an instrument panel of a vehicle equipped with a smart ignition system, and is a substantially cylindrical holder 2 and its one-end opening. An operation knob 5, an antenna holder 6, a hinge bar 7, a rubber sheet 8, and a printed board 9 are incorporated in a case 4 constituted by a disk-shaped base 3. Note that the holder 2 and the base 3, the operation knob 5, the antenna holder 6, the hinge bar 7, and the printed board 9 constituting the case 4 are each integrally formed of a non-conductive resin. In the following description, the left side in FIGS. 2 and 3 is the front, the right is the rear, and the left-right direction is the axial direction.

  The holder 2 is formed in a double cylinder shape, and a cylindrical portion 5A of the operation knob 5 is fitted and held on the outer periphery of a holding cylinder 2A that is an inner cylinder so as to be movable forward and backward. Here, the operation knob 5 is formed in a bottomed cylindrical shape, and a pressing portion 5C extending in the axial direction is formed on the outer peripheral upper portion of the cylindrical portion 5A integrally extending from the peripheral edge of the disk-shaped operation portion 5B. The tip of 5C protrudes rearward from the cylindrical portion 5A. A rectangular engagement hole 5 a that is long in the axial direction (front-rear direction) is formed on the outer periphery of the cylindrical portion 5 </ b> A of the operation knob 5.

  Thus, the operation knob 5 has its cylindrical portion 5A fitted into the ring-shaped space between the outer tube 2B of the holder 2 and the holding tube 2A from the front, and the cylindrical portion 5A is attached to the holding tube 2A of the holder 2. By being fitted and held slidably on the outer periphery, it moves forward and backward in the front-rear direction along the holding cylinder 2A. The operation knob 5 has a disk-like operation portion 5B closing the front end opening of the holder 2, and the operation portion 5B is exposed in the vehicle interior. An engagement claw 2a (see FIG. 5) formed on the outer periphery of the holding cylinder 2A of the holder 2 is engaged with the engagement hole 5a formed on the outer periphery of the cylindrical portion 5A of the operation knob 5. The operation knob 5 can move back and forth in the front-rear direction within a range in which the engagement claw 2a can relatively move in the engagement hole 5a. Further, the engagement of the engagement claw 2a on the holder 2 side and the engagement hole 5a on the operation knob 5 side prevents the operation knob 5 from falling off the holder 2. Further, the pressing portion 5C of the operation knob 5 can pass through a through hole 2d formed in the bottom wall between the outer cylinder 2B and the holding cylinder 2A of the holder 2, and can be engaged with a hinge bar 7 attached to the base 3. It has become.

  A ring-shaped block 2C is integrally formed on the inner periphery of the front end portion of the holding cylinder 2A of the holder 2, and a ring groove-shaped antenna holding portion 2b that opens forward is formed on the ring-shaped block 2C. ing. And the rectangular through-hole 2c penetrated in the front-back direction is formed in the upper part of the ring-shaped block 2C of the holder 2. As shown in FIG.

  The antenna holder 6 is fitted and held in the antenna holding portion 2b formed in the ring-shaped block 2C of the holder 2. Here, the antenna holder 6 includes a ring-shaped holding portion 6A and a rectangular bar-shaped protruding portion 6B extending perpendicularly from the upper portion of the holding portion 6A to the rear, and is formed on the outer periphery of the holding portion 6A. A coil antenna 10 is wound around the groove 6a. The two connection terminals 11 extending from the coil antenna 10 pass through the protrusion 6B and protrude rearward from the end of the protrusion 6B.

  Thus, the antenna holder 6 has its holding portion 6A fitted and held in the antenna holding portion 2b formed in the ring-shaped block 2C of the holder 2, and the projecting portion 6B penetrates the upper portion of the ring-shaped block 2C. It penetrates the through hole 2c and extends horizontally backward.

  On the other hand, the disc-shaped main body 3A of the base 3 that constitutes the case 4 together with the holder 2 is fitted to the inner periphery of the rear end of the outer cylinder 2B of the holder 2 to close the rear end opening of the holder 2. However, the connector portion 3B is integrally formed on the outer surface thereof. A total of seven connector terminals 12 penetrating into the lower part of the main body 3A protrude inside the connector 3B, and these connector terminals 12 are connected to a coupler (not shown) by the connector 3B. It is electrically connected to a battery and an authentication device (not shown) via an electric cord (not shown).

  Further, on both sides of the inner surface of the main body 3A of the base 3 facing the case 4, the axial support portions 3C extending horizontally toward the front are integrally projected, and each shaft support portion 3C has a circular shape. The holes 3a are respectively penetrating in the lateral direction (left-right direction).

  The printed circuit board 9 is attached to the inner surface of the main body 3 </ b> A of the base 3, and an LED 13, which is a light source for illumination, is mounted on the center of the printed circuit board 9. In addition, fixed contacts 14 are mounted on the upper left and right sides of the printed circuit board 9, and between these fixed contacts 14, there are two connecting portions that are connected to the connection terminal 11 protruding from the protruding portion 6 </ b> B of the antenna holder 6. A hole 9a is formed. And in the lower part of the printed circuit board 9, the seven holes 9b which are connection parts with the seven connector terminals 12 which penetrate the main-body part 3A of the base 3 are formed in the horizontal direction.

  As shown in FIGS. 2 and 3, the rubber sheet 8 having the same shape with high electrical insulation is attached to the printed board 9. The rubber sheet 8 is mounted on the upper left and right sides (mounted on the printed board 9). In addition, a switch portion 15 is provided at a location corresponding to the fixed contact 14, and a protruding portion 6B of the antenna holder 6 is provided between the switch portions 15 (a portion where the hole 9a of the printed circuit board 9 is formed). A penetrating rectangular hole 8a is formed. In addition, a rectangular window 8b is formed in the central portion of the rubber sheet 8 (a portion corresponding to the LED 13 mounted on the printed circuit board 9), and below the hole 9b formed in the lower portion of the printed circuit board 9 is formed. A rectangular bag-shaped convex portion 8 c for avoiding interference with the end portion of the connector terminal 12 is provided. Each switch portion 15 is formed in a dome shape, and a movable contact (not shown) is provided in the inside thereof, and the switch portion 15 is pressed to contact the movable contact with the fixed contact 14 of the printed circuit board 9. By doing so, both are conducted and the switch unit 15 is turned on.

  2 and 3, when the rubber sheet 8 and the printed circuit board 9 are assembled, the tip of the protruding portion 6B of the antenna holder 6 passes through the rectangular hole 8a of the rubber sheet 8, and the printed circuit board. The two connection terminals 11 projecting from the end face of the printed circuit board 9 pass through the hole 9a of the printed circuit board 9, and a portion passing through the printed circuit board 9 is soldered to the printed circuit board 9. It is fixed.

  Further, the seven connector terminals 12 have their end portions penetrating through the hole 9b of the printed circuit board 9 and projecting toward the rubber sheet 8, and the portions projecting from the printed circuit board 9 are soldered to form the printed circuit board. 9 is fixed. And LED13 mounted in the printed circuit board 9 is engage | inserted by the rectangular window 8b formed in the rubber sheet 8, The light-projection surface is exposed toward the front.

  By the way, in the switch device 1 according to the present embodiment, as shown in FIGS. 2 and 3, the gate-shaped (arch-shaped) hinge bar 7 is provided between the operation knob 5 and the switch portion 15 in the case 4. The hinge bar 7 is pivotally supported by a pair of left and right shaft support portions 3C projecting from the base 3 by a rotating shaft 16 at the lower end thereof. That is, the rotary shaft 16 is inserted into the lower end portion of the hinge bar 7, and both end portions of the rotary shaft 16 protruding to the side of the hinge bar 7 are formed in the circular holes 3 a formed in the pair of left and right shaft support portions 3 C of the base 3. The hinge bar 7 is pivotally supported at the lower end portion of the hinge bar 7 on the shaft support portion 3C of the base 3 via the rotation shaft 16.

  Further, the hinge bar 7 configured as a gate-shaped frame is formed with an opening 7a for allowing illumination light emitted from the LED 13 for illumination to pass to the operation knob 5 side. Further, a hemispherical pressed portion 7b with which the end face of the pressing portion 5C of the operation knob 5 abuts is integrally provided at the center in the width direction of the front surface of the upper end of the hinge bar 7, and is provided on both the left and right sides below the same. Are provided with operation portions 7c that contact two switch portions 15 provided on the rubber sheet 8, respectively.

  By the way, the two left and right switch portions 15 provided on the rubber sheet 8 are arranged in parallel to the axial direction of the rotating shaft 16 of the hinge bar 7, and the hinge bar with which the operation portion 7 c comes into contact with these switch portions 15. 7 is urged counterclockwise in FIG. 2 about the rotation shaft 16 by the urging force of the switch portion 15, and the pressed portion 7 b comes into contact with the end surface of the pressing portion 5 C of the operating knob 5 to push the operating knob 5. It is energizing forward.

  2 and 3 show the non-operating state of the switch device 1. In this state, the operating knob 5 is illustrated by engaging the engaging claw 2a on the holder 2 side with the engaging hole 5a formed therein. The hinge bar 7 stands up in a substantially vertical state. In this state, the switch portion 15 is not pressed by the operation portion 7c of the hinge bar 7, and the movable contact of these switch portions 15 is not in contact with the fixed contact 14 on the printed circuit board 9 side. Each switch unit 15 is in an OFF state.

  Thus, in the switch device 1 according to the present embodiment which is an engine start / stop switch, when the driver operates the operation portion 5B of the operation knob 5 and pushes in the operation knob 5, the operation knob 5 is pressed. Since the portion 5C presses the pressed portion 7b that protrudes from the center of the hinge bar 7 in the width direction, the hinge bar 7 rotates in the clockwise direction in FIG. When the hinge bar 7 rotates about the rotation shaft 16 in this way, the two left and right operation portions 7c provided on the hinge bar 7 simultaneously push in the two left and right switch portions 15 against the urging force. For this reason, the movable contact of each switch unit 15 comes into contact with the fixed contact 14 on the printed circuit board 9 side to conduct both, and the two switch units 15 are simultaneously turned on. At night, when the LED 13 mounted on the printed circuit board 9 is driven, the illumination light emitted from the LED 13 passes through the opening 7a of the hinge bar 7 and the holder 2 toward the operation knob 5. The non-illustrated translucent illumination part provided in the operation part 5B of the operation knob 5 is illuminated.

  As described above, when the two switch units 15 are simultaneously turned on, the vehicle authentication device transmits a starting radio wave from the coil antenna 10 when the engine is stopped. Then, an electromotive force is generated by a coil portion in a transponder provided in a portable device possessed by the driver, and an ID signal is transmitted to the authentication device of the vehicle by the power.

  Next, the vehicle authentication device collates the ID code included in the ID signal received from the coil antenna 10 with the ID code stored in advance, and if both match, the authentication is OK and the engine can be started. Start the engine as a condition. When the engine is started, the engine is stopped when the two switch portions 15 of the switch device 1 are simultaneously turned on.

  Thereafter, when the driver releases his / her hand from the operation knob 5 of the switch device 1, the hinge bar 7 rotates about the rotation shaft 16 in the counterclockwise direction in FIG. The operation knob 5 returns to the non-operation state shown in FIGS.

  As described above, according to the switch device 1 according to the present embodiment, the two switch portions 15 are simultaneously pressed by the hinge bar 7 pivotally supported on the shaft support portion 3C of the base 3, so that Even when the knob 5 is pushed in a tilted state and the hinge bar 7 is pressed, the lower end of the hinge bar 7 is pivotally supported and only rotates on a predetermined rotation path. The malfunction of the switch device 1 due to the fact that the two switch sections 15 are reliably turned on at the same time and only one switch section 15 is turned on is prevented. That is, the two switch portions 15 can be reliably turned on simultaneously without being affected by the tilt of the operation knob 5.

  In this embodiment, since the two switch portions 15 are arranged in parallel to the direction of the rotation axis 16 of the hinge bar 7, the two switch portions 15 are arranged at equal distances from the shaft support portion of the hinge bar 7. Can do. For this reason, the operation stroke of the operation part 7c of the hinge bar 7 with respect to each switch part 15 can be set equally, and the two switch parts 15 can be reliably turned ON simultaneously.

  Furthermore, in the present embodiment, the hinge bar 7 is pivotally supported on the base 3 side instead of the substantially cylindrical holder 2 side, so that the structure of the shaft support portion 3C of the base 3 that pivotally supports the hinge bar 7 is simplified. Can do.

  By the way, when the two switch portions 15 are operated by the hinge bar 7 as in the present embodiment, the hinge bar 7 is enlarged in the case 4 and the illumination of the operation knob 5 may be difficult. Since the opening 7a is formed in the hinge bar 7 and the illumination light from the LED 13 is allowed to pass to the operation knob 5 side, the hinge bar 7 can be disposed between the operation knob 5 and the LED 13, and the degree of freedom in design It is also possible to obtain the effect that the

  In the present embodiment, when the two switch sections 15 of the switch device 1 are simultaneously turned on, the vehicle authentication device is configured to transmit a starting radio wave from the coil antenna 10 toward the portable device. However, the present invention is not limited to this. For example, before the switch device 1 is operated, the activation signal is transmitted from the vehicle authentication device to the portable device so that the portable device is authenticated first. After that, when the switch device 1 is operated and the two switch parts 15 are simultaneously turned on, the engine may be determined to start or stop based on the portable device.

  Although the present invention has been described with respect to a mode in which the present invention is applied to a switch device as an engine start / stop switch, the present invention can be similarly applied to any other switch device having the same type of configuration. Of course.

DESCRIPTION OF SYMBOLS 1 Switch apparatus 2 Holder 2A Holder holding cylinder 2B Holder outer cylinder 2C Holder ring-shaped block 2a Holder engagement claw 2b Holder antenna holding part 2c Antenna holding part through hole 2d Holder through hole 3 Base 3A Base Body part 3B Base connector part 3C Base shaft support part 3a Shaft support circular hole 4 Case 5 Operation knob 5A Operation knob cylindrical part 5B Operation knob operation part 5C Operation knob pressing part 5a Operation knob engagement hole 6 Antenna Holder 6A Antenna holder holding portion 6B Antenna holder protrusion 6a Antenna holder groove 7 Hinge bar 7a Hinge bar opening 7b Hinged bar pressed portion 7c Hinge bar operating portion 8 Rubber sheet 8a Rubber sheet rectangular hole 8b Rubber sheet rectangular Window 8c Convex part of rubber sheet 9 Print base 9a, 9b PCB hole 10 coil antenna 11 connection terminal 12 connector terminal 13 LED (illumination light source)
14 Fixed contact 15 Switch part 16 Rotating shaft

Claims (4)

In a switch device comprising a case, an operation knob provided in the case so as to be movable back and forth, and two switch portions that are turned on in conjunction with the pushing movement of the operation knob.
A hinge bar whose one end is pivotally supported in the case is provided between the operation knob and the switch part, and the other end of the hinge bar is pressed by the operation knob to rotate the hinge bar. A switch device characterized in that an operating portion that simultaneously contacts two switch portions is provided on a hinge bar.   The switch device according to claim 1, wherein the two switch portions are arranged in parallel to a rotation axis direction of the hinge bar.   The case is provided with an opening that exposes a part of the operation knob to the outside on one end side, and a substantially cylindrical holder that holds the operation knob so that the operation knob can move forward and backward, and the other end opening of the holder is closed. The switch device according to claim 1, further comprising: a base including the two switch portions, wherein the base is provided with a shaft support portion that pivotally supports the hinge bar. The opening part for allowing the illumination light from the light source for illumination provided in the said case to pass through to the said operation knob side was formed in the said hinge bar, The any one of Claims 1-3 characterized by the above-mentioned. Switch device.

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