JP2007091050A - Vehicular horn device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To sound a horn for a long time as required, in addition to easily sounding a horn for a fixed short time without requiring skill. <P>SOLUTION: A second switch operating portion 22 also serving as a decorating member and having conductivity is arranged on a horn pad 12a of an airbag module 4. A projecting shaft 22a on a back surface of the second switch operating portion 22 is made to penetrate the horn pad 12a, inserted in a circuit substrate 23 arranged on a back surface thereof, and fixed by a conductive clip 24. When touching on the second switch operating portion 22, a capacitance detecting portion 32 provided on the circuit substrate 23 detects that a driver touches from changes in capacitance, and actuates a timer 31 to sound the horn 29 only for a short time decided by the timer 31. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention provides the steering wheel with a first horn switch and a second horn switch. When the first horn switch is turned on, the horn is blown in synchronism with it, and when the second switch is turned on, The present invention relates to a vehicle horn device that blows a horn for a short period of time using it as a trigger.

  In general, in a steering handle in which an airbag module is incorporated in the steering handle body, a pad (hereinafter referred to as “horn pad”) that covers the upper surface of the airbag module also serves as a part of a horn switch. The horn provided in the horn device is blown by pressing.

  In such a horn device, since the horn is blown while the driver is pressing the horn pad, the horn blowing time is adjusted by the time for the driver to press the horn pad. For example, when driving on a narrow road, when notifying a pedestrian or bicycle operator in front that the vehicle is approaching, perform an operation to lightly press the horn pad for a short time. However, it is necessary to be skillful when blowing the horn for a short time, and it is easy to blow the horn for a relatively long time, contrary to the will of the driver, causing discomfort to pedestrians and bicycle operators. There is an inconvenience.

  In particular, since the horn pad is covered with a soft skin, the pressing force when the horn is blown is not constant, and the horn does not blow, or even if it is intended to be lightly pressed, the blowing time will increase unexpectedly. There are inconveniences that are not constant.

  In order to cope with this, for example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 2005-71672), an electrostatic sensor is disposed on the back surface of the horn pad of the steering handle, and a driver's hand or the like is placed on the electrostatic sensor. A technique is disclosed in which a horn switch is turned on to blow a horn when approaching within a predetermined distance range.

In the technique disclosed in this document, since the horn can be blown simply by bringing the driver's hand or the like close to the electrostatic sensor, the horn can be blown reliably.
JP-A-2005-71672

  However, in the technique disclosed in Patent Document 1 described above, since the horn is blown only when the driver's hand or the like is close to the horn pad, there is a problem that the horn is likely to be blown by mistake during driving. Also, it is difficult to recognize how close the driver's hand is to the horn pad and how much it will sound. When trying to blow the horn for a short time, the driver's hand etc. Therefore, there is a problem that it is not easy to use, for example, it is necessary to approach them carefully and it takes skill to get used to them.

  Accordingly, an object of the present invention is to provide a vehicle horn device that can be used not only for skill but also for easily squeezing the horn for a short period of time and also for making the horn sound for a long time. It is to provide.

  In order to achieve the above object, a first aspect of the present invention includes a push button type first horn switch provided on a steering handle body, and a first blowing circuit for blowing the horn while the first horn switch is on. And a second horn switch that is provided on the steering handle body and that is turned on with a lighter pressing force than the first horn switch, and the horn is held for a preset short period of time with the on operation of the second horn switch as a trigger. In a vehicle horn device including a second sounding circuit that performs a sounding operation, the second switch operating part of the second horn switch is smaller than the first switch operating part of the first horn switch, and the first switch operating part Provided is a vehicle horn device which is disposed at the center of the steering handle body. Than is.

  According to the above invention, when the second switch operating portion of the second horn switch provided on the steering handle is lightly pressed, the second horn switch is turned on, and this is used as a trigger to preset the second blowing circuit. Sound the horn for a short time. Therefore, the horn can be easily blown for a certain short time without requiring skill, and is convenient.

  Further, the second switch operating portion is smaller than the first switch operating portion of the first horn switch, and is disposed on the first switch operating portion and in the center of the steering handle body, so that the second switch is strongly pressed. Then, the first switch operation unit operates together to turn on the first horn switch. While the first horn switch is on, the first blowing circuit continuously blows the horn. In this way, it is possible to selectively perform a short horn sounding operation by the ON operation of the second switch operation unit and a normal horn sounding operation synchronized with the operation of the first switch operation unit. By pressing the switch operation unit strongly, the first switch operation unit can be simultaneously turned on, so that the operability is good.

  According to a second aspect of the present invention, in the first aspect, the second horn switch is a touch switch, and the second sounding circuit is provided on a circuit board disposed on a back surface of the first switch operation unit. A projecting shaft projecting from the back surface of the second switch operating portion passes through the first switch operating portion, and is inserted and locked into a hole formed in the second blowing circuit. A vehicle horn device is provided in which a two-switch operation unit and the circuit board are fixed.

  According to the above invention, the second horn switch is a touch switch, the second sounding circuit is provided on the circuit board disposed on the back surface of the first switch operation unit, and the projecting shaft projecting on the back surface of the second switch operation unit is provided. Since the second switch operating part and the circuit board are fixedly inserted through the first switch operating part and inserted into and locked in the hole formed in the second blowing circuit, the touch switch and the first switch There is no need to electrically connect the two sounding circuits, and manufacturing and assembly are facilitated.

  According to a third aspect of the present invention, a push button type first horn switch provided on the steering handle body, a first blowing circuit for blowing the horn while the first horn switch is on, and the steering handle body. A second horn switch that is turned on with a lighter pressing force than the first horn switch, and a second blowing circuit that blows the horn for a preset short time with the on operation of the second horn switch as a trigger In the vehicular horn device, the steering handle main body is provided with a standing wall that opens upward to stand, and the first switch operating portion of the first horn switch is disposed so as to cover the opening of the standing wall. A circuit board having the second blowing circuit is disposed in the standing wall and inserted from the outside, at least Is fastened and fixed in the standing wall via a fastening means having conductivity, the second horn switch is a touch switch, and the head surface exposed to the outside of the fastening means is the second horn switch. The present invention provides a vehicle horn device characterized by constituting a two-switch operation unit.

  According to the above invention, the standing wall that is erected with the steering wheel body opened upward is covered with the first switch operating portion of the first horn switch, and the circuit board having the second blowing circuit is inserted into the standing wall from the outside. Since the second switch operating portion of the second horn switch functioning as a touch switch is constituted by the head surface of the fastening member, at least the surface is fastened and fixed via the fastening means having conductivity, the head surface of the fastening member When the button is lightly pressed, the second horn switch is turned on, and this is used as a trigger for the second blowing circuit to blow the horn for a preset short time. Therefore, the horn can be easily blown for a short period of time without requiring skill, which is convenient.

  In addition, the circuit board having the second sounding circuit is fixed in the standing wall, and the head surface exposed to the outside of the fastening member for fixing the circuit board is configured as the second switch operation unit of the touch switch. Since the circuit and the touch switch can be retrofitted to the existing steering handle body, high versatility can be obtained.

  According to a fourth aspect of the present invention, there is provided a push button type first horn switch provided on the steering handle body, a first blowing circuit for blowing the horn while the first horn switch is on, and the steering handle body. A second horn switch that is turned on with a lighter pressing force than the first horn switch, and a second blowing circuit that blows the horn for a preset short time with the on operation of the second horn switch as a trigger In the vehicular horn device, the steering handle main body is provided with a standing wall that opens upward to stand, and the first switch operating portion of the first horn switch is disposed so as to cover the opening of the standing wall. A circuit board having the second sounding circuit is disposed in the standing wall, and the second horn switch is a touch switch. The projecting member provided on the outer surface of the standing wall constitutes a second switch operating portion of the second horn switch, and the second blowing circuit and the second switch operating portion are routed through the standing wall. The horn apparatus for vehicles characterized by being connected via is provided.

  According to the above invention, the standing wall that is erected from the steering handle main body is covered with the first switch operating portion of the first horn switch, the circuit board having the second sounding circuit is disposed in the standing wall, and touched. The second switch operating portion of the second horn switch functioning as a switch is configured by the surface of the protruding member provided on the outer surface of the standing wall, and the second blowing circuit and the protruding member are connected via a lead line passing through the standing wall. Therefore, when the projecting member provided on the outer surface of the standing wall is lightly pressed, the second horn switch is turned on, and the second blowing circuit is operated to blow the horn for a preset short time using this as a trigger. Therefore, the horn can be easily blown for a certain short time without requiring skill, and is convenient.

  In addition, the circuit board having the second sounding circuit is fixed in the standing wall, and the circuit board and the protruding member provided on the outer surface of the standing wall are connected through the lead wire passing through the standing wall, so that any processing is performed on the standing wall. It is possible to connect the projecting member and the circuit board without applying, so that retrofitting can be easily performed on the existing steering handle body, and higher versatility can be obtained.

  As described above, according to the present invention, not only can the horn be blown easily for a certain short time without requiring skill, but also the horn can be blown for a long time, which is convenient.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 7 show a first embodiment of the present invention. FIG. 1 is a perspective view of the steering handle, and FIG. 2 is an exploded perspective view of the steering handle.

  Reference numeral 1 in the figure denotes a steering handle. The steering handle 1 is fixed to a steering shaft (not shown) provided in a vehicle such as an automobile, and the driver grips the steering handle 1 and rotates. This makes it possible to steer a running vehicle.

  The steering handle 1 includes a steering handle main body 2 and a push button type first horn switch 3 provided on the steering handle main body 2, and the first horn switch 3 has a first switch operating portion as a first switch operating portion. The airbag module 4 is provided. The steering handle 1 is normally used in a state inclined at a predetermined angle, but hereinafter, for convenience, the front of the airbag module 4, that is, the driver side will be the upper side, Description will be made with the back side, that is, the vehicle body side as the lower side.

  The steering handle body 2 has a ring-shaped rim portion 5, and a boss plate 6 is arranged at the center of the rim portion 5. A plurality of rim portions 5 and boss plates 6 (in this embodiment) are provided. 3) spoke portions 7 are connected. Further, a boss 9 that is pivotally attached to a steering shaft (not shown) is integrally formed at the center of the boss plate 6. Furthermore, a standing wall 10 is provided on the outer peripheral edge of the boss plate 6 so as to open up and stand up. The outer surface of the rim portion 5 and the spoke portion 7 continuous to the rim portion 5 is covered with a soft skin material made of vinyl chloride or the like.

  A pair of fixing brackets 11 are fixedly arranged on the boss plate 6 on opposite sides of the boss 9 (3 o'clock and 9 o'clock direction in the figure), and the airbag module 4 is mounted on both the fixing brackets 11. Is placed.

  As shown in FIGS. 2 and 3, the airbag module 4 has a module cover 12 and a back cover 13. The module cover 12 has a horn pad 12a formed on the upper surface, and a substantially rectangular tube-shaped side wall portion 12b protruding downward from the back surface of the horn pad 12a, and these are made of an insulating material such as resin. It is molded as a single piece. The surface of the horn pad 12a is covered with a soft skin material made of vinyl chloride or the like.

  Further, the back cover 13 is attached and fixed to the lower end of the opening of the side wall portion 12b via a screw or the like. The back cover 13 is made of a conductive metal, and a bag-like airbag (not shown) is accommodated in the side wall portion 12b closed by the back cover 13 in a folded state.

  Further, a switch mechanism portion 14 constituting the first horn switch 3 is disposed between each fixing bracket 11 and the back cover 13. As shown in FIG. 4, the switch mechanism unit 14 includes a fixed contact pin 15, a movable contact pin 16, a compression coil spring 17, a bolt 18, and insulating bushes 19 and 20.

  The fixed contact pin 15 is erected on the shelf 11 a (see FIG. 2) of the fixed bracket 11, while the movable contact pin 16 protrudes from the surface of the back cover 13 that faces the fixed contact pin 15. . Further, contacts 15a and 16a are fixed to the opposing surfaces of the contact pins 15 and 16, respectively. Further, an insertion hole 13a is formed in the rear cover 13 at a position adjacent to a portion where the movable contact pin 16 is projected, and an insulating bush 19 is inserted into the insertion hole 13a from above. The other insulating bush 20 is externally fitted and fitted to the insulating bush 19 protruding from the base.

  The compression coil spring 17 is interposed between the shelf portion 11 a of the fixed bracket 11 and the retainer 20 a of the other insulating bush 20. The bolt 18 is inserted into the insulating bush 19 from above, and a screw portion screwed at the tip is screwed into the shelf portion 11a.

  As shown in FIG. 4A, the back cover 13 is urged in a direction away from the shelf 11 a by the elastic force of the compression coil spring 17, and the seating surface 19 a formed on the insulating bush 19 has a bolt 18. The distance between the bolt heads 18a is restricted. At this time, the contacts 15a and 16a provided between the opposing surfaces of the contact pins 15 and 16 are in an open state.

  Since the back cover 13 is fixed to the module cover 12, it moves up and down integrally with the module cover 12. Accordingly, when the horn pad 12a formed on the upper surface of the module cover 12 is pressed, the back cover 13 is lowered, and a pair of movable contact pins 16 protruding downward from the back cover 13 are fixed to face each other. Contacts 15a and 16a provided on contact surfaces of both contact pins 15 and 16 are brought into contact with the contact pins 15. The airbag module 4 is only allowed to move in the vertical direction when the insulating bush 19 mounted on the back cover 13 moves along the bolt 18.

  A second horn switch 21 is disposed above the horn pad 12a. The second horn switch 21 includes a second switch operation unit 22 that also serves as a decorative member (emblem), a circuit board 23, and a conductive clip 24.

  A recess 12c is formed at the center of the horn pad 12a, that is, at the center that is the center of rotation of the steering handle body 2. The second switch operation unit 22 is attached to the recess 12c. Accordingly, the recess 12 c is formed in a shape along the outer edge of the second switch operation unit 22.

  The second horn switch 21 has a function as a touch sensor, and the second switch operation unit 22 has a function as a touch electrode of the touch sensor. Accordingly, the second switch operation unit 22 is formed of a synthetic resin mixed with a conductive metal, a conductive material such as carbon, or a synthetic resin with a surface plated with a metal to ensure conductivity. A projecting shaft 22a projects from the center of the rear surface of the second switch operation unit 22, and a hook 22b is formed below the projecting shaft 22a. Furthermore, a latching claw 22 c is projected from the rear surface edge of the second switch operation unit 22. The recess 12c of the horn pad 12a has a projecting shaft hole 12d through which the projecting shaft 22a is inserted in the center thereof, and a claw insertion hole 12e is opened at a position corresponding to the latching claw 22c. .

  As shown in FIG. 5, when the second switch operating portion 22 is attached to the concave portion 12c of the horn pad 12a, the protruding shaft 22a penetrates the protruding shaft hole portion 12d and protrudes from the back surface of the horn pad 12a. The hooking claw 22c is hooked on the rear edge of the claw insertion hole 12e. The back surface of the circuit board 23 is in contact with the back surface of the recess 12c. The circuit board 23 has a hole 23a that passes through the projecting shaft 22a. The projecting shaft 22a passes through the hole 23a and projects to the front side of the circuit board 23.

  The conductive clip 24 is a so-called push nut (also referred to as a speed nut). When the conductive clip 24 is inserted into the distal end side of the projecting shaft 22a and hooked with the hook 22b, the circuit board 23 is attached to the rear surface of the horn pad 12a. Pressed to fix. In addition, a conductive pattern is formed on the circuit board 23 on which the flange portion 24a formed on the outer periphery of the conductive clip 24 is pressed. Therefore, the second switch operating unit 22 and the circuit board 23 are connected to the conductive clip. Conducted through 24. The circuit board 23 is provided with a second blowing circuit 28 (see FIGS. 6 and 7) connected to the second switch operation unit 22.

  6 and 7 show circuit diagrams of the horn device. The battery power supply Vb is supplied to or cut off from the horn 29 via a relay contact of the horn relay 30. A first blowing circuit 27 having the first horn switch 3 and a second blowing circuit 28 provided on the circuit board 23 are connected in parallel to a relay coil for turning on / off the relay contact of the horn relay 30.

  A timer 31 and a capacitance detector 32 are connected in parallel to the second sounding circuit 28, and the second horn switch 21 is connected to the capacitance detector 32. The capacitance detection unit 32 detects whether the driver's hand or the like has touched (lightly pressed) the second switch operation unit 22 of the second horn switch 21 based on a change in capacitance.

  When the electrostatic capacitance detection unit 32 detects that the second switch operation unit 22 has been touched by the driver's hand or the like from the change in electrostatic capacitance, the horn relay 30 is set for the time set in the timer 31 using that as a trigger. The relay coil is excited, the relay contact is turned on, and the horn 29 is blown. On the other hand, when the first horn switch 3 is turned on by pressing the horn pad 12a, the relay coil of the horn relay 30 is excited while the first horn switch 3 is in the on state, and the relay contact is turned on to turn the horn on. 29 is blown.

  Next, the operation of the vehicle horn device having such a configuration will be described.

  When the horn pad 12a of the airbag module 4 provided on the steering handle 1 is relatively strongly pressed, the entire airbag module 4 descends against the urging force of the pair of compression coil springs 17, and the back cover 13 A pair of movable contact pins 16 projecting downward from the abutment abuts against the fixed contact pin 15 opposed thereto, and contacts 15a, 16a provided on the opposed surfaces of the contact pins 15, 16 contact each other.

  Then, the first horn switch 3 of the first blowing circuit 27 is turned on, the relay coil of the horn relay 30 is excited, the relay contact is turned on, and the horn 29 is blown while the first horn switch 3 is on. Be operated.

  On the other hand, when driving on a narrow road, for example, when notifying a pedestrian or bicycle operator ahead of the vehicle that the vehicle is approaching, for example, if the horn 29 is to be blown lightly, the horn pad 12a is placed in the center. The second switch operation unit 22 that also serves as a decorative member (emblem) is touched.

  The second switch operation unit 22 has conductivity, and a projecting shaft 22a protruding from the back surface of the second switch operation unit 22 is disposed on the back surface of the horn pad 12a via a conductive clip 24. 23 is electrically connected. Accordingly, when the driver's hand or the like touches the second switch operation unit 22, the capacitance detection unit 32 of the second blowing circuit 28 provided on the circuit board 23 causes the second switch operation from the change in capacitance. It is detected that the driver's hand or the like has touched the unit 22, and the timer 31 is operated using this as a trigger.

  Then, the relay coil of the horn relay 30 is excited for a short time set in advance by the timer 31, the relay contact is turned on, and the horn 29 is blown. Since the sounding time of the horn 29 is a fixed value determined by the timer 31, the horn 29 may be sounded for a long time by mistake, or may be sounded with a loud sound, or the horn 29 may not sound at all. It is easy to use, and anyone can easily blow the horn for a short time without any skill.

  The timer 31 is composed of a one-shot multivibrator, a microcomputer, or the like. The setting of the blowing time is configured by a one-shot multivibrator. In the case of a timer, it can be set by the value of a capacitor and a resistor, etc. In the case of a timer constituted by a microcomputer, the blowing time can be set by software.

  In addition, since the second switch operation unit 22 and the circuit board 23 are electrically connected by structural connection, it is not necessary to electrically wire both of them, and the assembly is facilitated, thereby reducing the number of manufacturing steps. I can do it. Furthermore, since the projecting shaft 22a protruding from the back surface of the second switch operation unit 22 and the circuit board 23 are made conductive through the conductive clip 24 that fixes the circuit board 23, a screw or the like is fastened at the time of assembly. A member becomes unnecessary and assembly can be further simplified.

  On the other hand, when the second switch operation unit 22 is pressed relatively strongly, the second blowing circuit 28 having good responsiveness first blows the horn 29, and the first horn switch 3 is moved by the backward movement of the airbag module 4. The first sounding circuit 27 causes the horn 29 to sound. Therefore, the horn 29 can be quickly blown by pressing the second switch operation unit 22 relatively strongly.

  FIG. 8 shows a second embodiment of the present invention. In the first embodiment described above, the circuit board 23 is fixed to the back surface of the horn pad 12a. However, in this embodiment, a bracket part 13b is formed on one side of the back cover 13, and the circuit board 23 is attached to the bracket part 13b. It is intended to be sandwiched.

  That is, the bracket portion 13b is bent so as to protrude outward, and a square hole 13d is formed in the bracket portion 13b, and a convex portion 23b that fits into the square hole 13d is provided on the circuit board 23.

  When the circuit board 23 is inserted into the bracket part 13b from above, both sides of the circuit board 23 are exposed from the outer peripheral surface of the back cover 13, and the circuit board 23 is sandwiched between the outer peripheral surface and the inner surface of the bracket part 13b. It is. Further, the convex portion 23b provided on the circuit board 23 is fitted into the square hole 13d formed in the bracket portion 13b, and is positioned and fixed. Thereafter, the circuit board 23 and the second switch operation unit 22 are electrically connected by wiring.

  In the present embodiment, since the circuit board 23 can be fixed to the back cover 13 without using a fixing member such as a screw, assembly is facilitated. Further, by forming the bracket portion 13b in the back cover 13 in advance, the circuit board 23 can be assembled later, and the second horn switch 21 can be provided as an option.

  9 to 11 show a third embodiment of the present invention. In the first embodiment described above, the decorative member (emblem) fixed to the horn pad 12a is used as the second switch operation unit 22, but in this embodiment, the airbag module 4 uses the conventional product as it is, and the steering handle. A second horn switch 21 can be retrofitted to the main body 2.

  That is, the circuit board 23 can be mounted from above on the inner surface side of the upright wall 10 formed on the outer peripheral edge of the boss plate 6 disposed at the axial center of the steering handle body 2 (in the drawing, at 12 o'clock). Such a U-shaped substrate pressing portion 10a is formed.

  And as shown in FIG. 10, the circuit board 23 is mounted | worn from this upper direction with respect to this board | substrate holding | suppressing part 10a. A screw hole 23 c is screwed on the back surface of the circuit board 23. The screw hole 23c has conductivity, and is electrically connected to the capacitance detection unit 32 provided in the second blowing circuit 28 of the circuit board 23. Further, a screw insertion hole 10b is formed in the standing wall 10 facing the screw hole 23c of the circuit board 23 in a state where it is mounted on the board holding portion 10a. The standing wall 10 is preferably formed of an insulating material such as resin.

  With the circuit board 23 attached to the board holding portion 10a, a screw 36 as a fastening member is inserted from the outside into the screw insertion hole 10b drilled in the standing wall 10 and is screwed to the circuit board 23. The circuit board 23 is screwed to the standing wall 10 by screwing into the screw hole 23c. The screw 36 has conductivity or is plated with conductivity so that at least the surface has conductivity. Further, since the circuit board 23 is positioned by the board pressing portion 10a, it is not necessary to fasten the circuit board 23, and the circuit board 23 may be fastened with the screw head floating as shown in FIG.

  Then, a cap 37 is attached to the screw head of the screw 36. The cap 37 is formed so as to cover the screw head, and the open end is engaged with a step portion 36a formed under the neck of the screw head to prevent the cap 37 from coming off. The cap 37 is made of a conductive resin and contains a fluorescent agent.

  In this embodiment, the cap 37 is used as a touch electrode, and the cap 37 and the screw 36 are functioned as a second switch operation unit. Therefore, when the cap 37 is touched with a hand or the like, the horn 29 can be blown for a set short time using that as a trigger.

  As described above, the screw 36 for fixing the circuit board 23 to the upright wall 10 and the cap 37 attached to the screw head of the screw 36 function as the second switch operation unit. The circuit board 23 can be assembled later without processing the bag module 4, and the second horn switch 21 can be provided as a retrofit option.

  Further, since the cap 37 contains the fluorescent agent, the position can be easily grasped even in the dark.

  FIG. 12 shows a fourth embodiment of the present invention. In the third embodiment described above, since it is necessary to form the substrate pressing portion 10a on the standing wall 10, it cannot be attached to an existing steering handle. In this embodiment, it is possible to attach to an existing steering handle.

  That is, the circuit board 23 is affixed to the inner surface of the standing wall 10 with a double-sided tape 41, and a conductive protrusion 44 serving as a touch electrode is connected and fixed to a lead wire 43 typified by a flat cable. The back surface of the lead wire 43 on the side where the portion 44 is erected is attached to the outer surface of the standing wall 10 with a double-sided tape 42. The lead wire 43 is detoured along the upright wall 10 and connected to the capacitance detection unit 32 provided in the second blowing circuit 28 of the circuit board 23.

  In the present embodiment, the conductive protrusion 44 is used as a touch electrode, and the conductive protrusion 44 is touched with a hand or the like, so that the horn 29 can be sounded for a set short time using that as a trigger.

  In this way, the circuit board 23 and the conductive protrusion 44 are connected using the lead wire 43 that bypasses the standing wall 10 and these are fixed to the standing wall 10 via the double-sided tapes 41 and 42. It can be attached to an existing steering handle, and high versatility can be obtained. Note that the conductive protrusion 44 may contain a fluorescent agent.

It is a perspective view of the steering handle by a 1st embodiment. FIG. 2 is an exploded perspective view of the steering handle. FIG. 6 is an exploded perspective view showing the assembled state of the module cover and the second horn switch. FIG. 5A is a cross-sectional view of the main part of the switch mechanism unit in the OFF state, and FIG. 5B is a cross-sectional view of the main part of the switch mechanism unit in the ON state. It is sectional drawing which shows an assembly | attachment state with a 2nd horn switch. It is a circuit diagram of the horn device. It is a detail drawing of a 2nd blowing circuit same as the above. It is a principal part disassembled perspective view which shows the attachment state of the circuit board with respect to the back cover by 2nd Embodiment. It is a perspective view of the steering handle by a 3rd embodiment. FIG. 10 is a cross-sectional view of the main part of FIG. 9. FIG. 11 is a main part sectional view corresponding to FIG. 10 showing an assembled state of the second horn switch. It is sectional drawing equivalent to FIG. 11 by 4th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Steering handle 2 Steering handle main body 3 1st horn switch 4 Airbag module 10 Standing wall 12 Module cover 12a Horn pad 12c Recessed part 12d Projection shaft hole part 13 Back cover 14 Switch mechanism part 15 Fixed contact pin 16 Movable contact pin 17 Compression coil Spring 21 Second horn switch 22 Second switch operation section 22a Projection shaft 23 Circuit board 24 Conductive clip 27 First blowing circuit 28 Second blowing circuit 29 Horn 31 Timer 32 Capacitance detection section Vb Battery power supply

Claims (4)

A push button type first horn switch provided on the steering handle body;
A first blowing circuit for blowing the horn during the ON operation of the first horn switch;
A second horn switch that is provided on the steering handle body and that is turned on with a lighter pressing force than the first horn switch;
In a vehicle horn device comprising: a second blowing circuit that blows the horn for a preset short time triggered by an on operation of the second horn switch;
The second switch operating portion of the second horn switch is smaller than the first switch operating portion of the first horn switch, and is disposed on the first switch operating portion and in the center of the steering handle body. A vehicle horn device characterized by the above. The second horn switch is a touch switch,
The second blowing circuit is provided on a circuit board disposed on the back surface of the first switch operation unit,
A projecting shaft projecting from the back surface of the second switch operating portion passes through the first switch operating portion, and is inserted and locked into a hole formed in the second blowing circuit. 2. The vehicle horn device according to claim 1, wherein the two-switch operation unit and the circuit board are fixed. A push button type first horn switch provided on the steering handle body;
A first blowing circuit for blowing the horn during the ON operation of the first horn switch;
A second horn switch that is provided on the steering handle body and that is turned on with a lighter pressing force than the first horn switch;
In a vehicle horn device comprising: a second blowing circuit that blows the horn for a preset short time triggered by an on operation of the second horn switch;
The steering handle body is provided with a standing wall that opens up and stands up,
A first switch operating portion of the first horn switch is disposed so as to cover the opening of the standing wall;
A circuit board having the second blowing circuit is disposed in the standing wall and inserted from the outside, and at least the surface is fastened and fixed in the standing wall through fastening means having conductivity,
The vehicle horn device, wherein the second horn switch is a touch switch, and a head surface exposed to the outside of the fastening means constitutes a second switch operation unit of the second horn switch. A push button type first horn switch provided on the steering handle body;
A first blowing circuit for blowing the horn during the ON operation of the first horn switch;
A second horn switch that is provided on the steering handle body and that is turned on with a lighter pressing force than the first horn switch;
In a vehicle horn device comprising: a second blowing circuit that blows the horn for a preset short time triggered by an on operation of the second horn switch;
The steering handle body is provided with a standing wall that opens up and stands up,
A first switch operating portion of the first horn switch is disposed so as to cover the opening of the standing wall;
A circuit board having the second blowing circuit is disposed in the standing wall;
The second horn switch is a touch switch, and a protruding member provided on the outer surface of the standing wall constitutes a second switch operation unit of the second horn switch,
The vehicle horn device, wherein the second blowing circuit and the second switch operation unit are connected via a lead line passing through the standing wall.

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