KR20140005626A - Horn apparatus of an automobile - Google Patents

Horn apparatus of an automobile Download PDF

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Publication number
KR20140005626A
KR20140005626A KR1020120073443A KR20120073443A KR20140005626A KR 20140005626 A KR20140005626 A KR 20140005626A KR 1020120073443 A KR1020120073443 A KR 1020120073443A KR 20120073443 A KR20120073443 A KR 20120073443A KR 20140005626 A KR20140005626 A KR 20140005626A
Authority
KR
South Korea
Prior art keywords
airbag module
contact terminal
horn
driver
disposed
Prior art date
Application number
KR1020120073443A
Other languages
Korean (ko)
Inventor
이유선
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020120073443A priority Critical patent/KR20140005626A/en
Publication of KR20140005626A publication Critical patent/KR20140005626A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/128—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using magnetostrictive driving means

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Steering Controls (AREA)
  • Air Bags (AREA)

Abstract

Provided is a horn apparatus of an automobile capable of supporting a driver airbag module by a magnetic force generated by contact terminals for producing an automobile horn. According to an embodiment of the present invention, the horn apparatus of an automobile includes a first contact terminal having a magnetic force and arranged in a steering wheel, and a second contact terminal arranged in the driver airbag module, facing the first contact terminal supported by the magnetic force of the same polarity, maintaining a magnetic levitation state by the magnetic force with the first contact terminal, and producing the automobile horn by touching the first contact terminal when the driver airbag module is pressured.

Description

Horn device of car {HORN APPARATUS OF AN AUTOMOBILE}

The present invention relates to a car horn device, and more particularly to a car horn device installed in a steering wheel.

In general, a vehicle is provided with a steering wheel that functions to steer forward from the driver's seat.

The steering wheel is provided with a driver airbag module that is inflated and deployed by gas pressure during a car accident to protect the driver.

The driver airbag module is installed to be slidable up and down on the steering wheel, so that when the driver presses the driver airbag module, the driver airbag module slides downward and enters the inside of the steering wheel, and a horn sounds.

That is, each of the steering wheel and the driver airbag module is provided with contact terminals for switch operation. When the driver presses the driver airbag module and the driver airbag module enters the steering wheel, The horn sounds when contacting each other.

On the other hand, after the horn sounds as described above, when the driver releases the driver airbag module, a plurality of horn springs are installed below the driver airbag module so that the driver airbag module can be restored to its original position. That is, the driver presses the driver airbag module to make the horn sound so that the plurality of horn springs are compressed by the driver airbag module entering the inside of the steering wheel, thereby generating an elastic restoring force. When the driver airbag module is released, the driver airbag module is restored to its original position.

However, since the plurality of horn springs are formed in the shape of coil springs, the installation work on the driver airbag module is not only cumbersome, and the operation feeling of the driver pressing the driver airbag module by the elastic force of the plurality of horn springs. There is a problem that it is difficult to properly adjust the operating feeling because it depends. In addition, when the elastic force of the plurality of horn springs do not match each other, a step is formed between the steering wheel and the driver airbag module has a problem that the appearance design is degraded, for operating the driver airbag module inside the steering wheel As the wires and the wires for sounding the horn are arranged, there is a fear that the plurality of horn springs are squeezed and break the wires.

The problem to be solved by the present invention is to provide a horn sound device of a vehicle capable of supporting the driver airbag module by forming a contact terminal for sounding a horn having a magnetic force.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the horn sound device of a vehicle according to an embodiment of the present invention, is disposed on the steering wheel, the first contact terminal having a magnetic force, and disposed in the driver airbag module, having a magnetic force but the first contact The second contact terminal is arranged so that the same polarity as the terminal is opposite to each other, and is in a magnetic levitation state by a magnetic force with the first contact terminal, and then contacts the first contact terminal when the driver's airbag module is pressed to sound a horn. It includes.

The details of other embodiments are included in the detailed description and drawings.

The horn sound device of a vehicle according to the present invention is formed such that the first contact terminal and the second contact terminal for sounding the horn have a magnetic force, and thus support the driver airbag module by the magnetic levitation force, thereby pressurizing the driver airbag module. There is an effect that can be easily adjusted to operate.

In addition, since the existing horn spring elastically supporting the driver airbag module is deleted to replace the function of the horn spring by the contact terminal for sounding the horn, the installation work becomes easy, and the wires disposed inside the steering wheel are broken. It can be prevented, it is also easy to adjust so that the step is not formed between the steering wheel and the driver's airbag module.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a view showing the back of the driver airbag module to which the horn device of an automobile according to an embodiment of the present invention is applied;
2 is a view showing a coupling member shown in FIG.
3 is a cross-sectional view showing a horn device of an automobile according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, a horn sound device of an automobile according to an embodiment of the present invention will be described with reference to the drawings.

1 is a view showing a driver airbag module to which a horn device for a vehicle according to an embodiment of the present invention is applied, FIG. 2 is a view showing a coupling member shown in FIG. 1, and FIG. 3 is a horn sound of a vehicle according to an embodiment of the present invention. It is sectional drawing which shows an apparatus.

1 to 3, the horn device of an automobile according to an embodiment of the present invention is disposed on a steering wheel 10 and is disposed on a first contact terminal 30 having a magnetic force and a driver airbag module 20. And having magnetic force, but having the same polarity as that of the first contact terminal 30 so as to face each other, and being in a magnetic levitation state by the magnetic force with the first contact terminal 30, when the driver presses the airbag module 20. It includes a second contact terminal 40 in contact with the first contact terminal 30 to sound a horn.

Here, the steering wheel 10 is disposed in front of the driver's seat to serve as a steering function of the vehicle, the driver airbag module 20 is coupled to the steering wheel 10 to expand the expansion to protect the driver with a cushion force in the event of an automobile accident The airbag (not shown) is to be disposed therein.

The driver airbag module 20 is coupled to the steering wheel 10 to be slidable up and down. Therefore, when the driver presses the driver airbag module 20, the driver airbag module 20 enters the inside of the steering wheel 10, and at this time, the first contact terminal 30 disposed on the steering wheel 10, When the second contact terminal 40 disposed below the driver's airbag module 20 comes into contact, a horn sounds.

The driver airbag module 20 may include an airbag housing 22 accommodating the airbag, an airbag cover 24 coupled to an upper side of the airbag housing 22 to cover the airbag accommodated in the airbag housing 22, and an airbag housing. And a mounting plate 25 disposed below the 22 and an inflator 26 that is fastened to the mounting plate 25 and the airbag housing 22 and generates gas so that the airbag can be expanded and developed.

A coupling member 28 is disposed below the mounting plate 25. The coupling member 28 is disposed in the driver airbag module 20 and inserted into the steering wheel 10 to couple the driver airbag module 20 to the steering wheel 10 so as to slide up and down. The reason why the driver airbag module 20 is coupled to the steering wheel 10 through the coupling member 28 so as to be slidable up and down is that when the driver presses the driver airbag module 20, the driver airbag module 20 is steered. This is to make the horn sound by sliding into the wheel 10. In the present embodiment, three coupling members 28 are disposed below the mounting plate 25, but the number of the coupling members 28 may be variously changed according to the shape of the airbag housing 22. Hereinafter, since the three coupling members 28 are formed in the same structure, only one coupling member 28 will be described below as an example for understanding of the description.

The steering wheel 10 is provided with a bushing hole 15 into which the coupling member 28 is coupled, and a bush (not shown) inside the bushing 15 to prevent interference with the coupling member 28. ) May be arranged.

The first contact terminal 30 is spaced apart from the coupling member 28 and disposed on the steering wheel 10, and the second contact terminal 40 is disposed below the coupling member 28. Of course, it is preferable that the first contact terminal 30 and the second contact terminal are disposed at positions facing each other so as to be in contact with each other.

The coupling member is inserted into the mounting plate 25, the upper end is coupled to the driver's airbag module 20 and is disposed in the snap-fit body 28a and the second contact terminal is disposed on the lower side, and is disposed in the snap-fit body 28a The elastic member 28b, the snap-fit pin 28c carried by the elastic member 28b in the snap-fit main body 28a, and the elastic member 28b and the snap are covered on the outer side of the snap-fit main body 28a. The cover pin 28c includes a cover member 28d which prevents the fit pin 28c from falling out within the snap fit body 28a. The cover member 28d has a guide hole 28e through which the snap-fit pin 28c protrudes so that the snap-fit pin 28c protrudes by the elastic force of the elastic member 28b and is caught by the steering wheel 10. Is formed.

Both the first contact terminal 30 and the second contact terminal 40 may have a magnetic force and may be formed of a conductor capable of generating a contact signal when contacted with each other. However, in the present embodiment, the first contact terminal 30 includes a first magnetic body 32 having a magnetic force, and a first terminal portion 34 made of a conductor and disposed on the first magnetic body 32, and the second contact point. The terminal 40 also includes a second magnetic body 42 having a magnetic force and a second terminal portion 44 made of a conductor and disposed on the second magnetic body 42. The first magnetic body 32 and the second magnetic body 42 are arranged to face the same polarity (for example, the N pole) to each other, thereby maintaining a state spaced apart from each other by the repulsive force. Therefore, when the driver does not pressurize the driver airbag module 20, the driver airbag module 20 is in a magnetic levitation state by the repulsive force between the first magnetic body 32 and the second magnetic body 42, and the driver When the driver's airbag module 20 is moved to the inside of the steering wheel 10 by pressing the airbag module 20, the first terminal 34 and the second terminal 44 are in contact with each other to generate a horn sound. will be.

The first terminal portion 34 is formed of a fastening member such as a rivet to fasten the first magnetic body 32 to the steering wheel 10, and the second terminal portion 44 is also formed of a fastening member having the same rivet to the second magnetic body 42. ) To the driver airbag module 20. In the present embodiment, the second contact terminal 40 is disposed on the coupling member 28, and the second terminal portion 44 fastens the second magnetic body 42 to the snap-fit main body 28a.

The first terminal portion 34 is formed to have a smaller diameter than the first magnetic body 32 and protrudes to the upper side of the first magnetic body, and the second terminal portion 44 is formed to have a smaller diameter than the second magnetic body 42 to the second It is arranged to protrude downward of the magnetic material.

The first terminal part 34 and the second terminal part 44 are disposed to have a distance of 1.5 to 2 mm from each other, and the first magnetic body 32 and the second magnetic body 42 have a first terminal part ( 34) and the second terminal portion 44 is arranged to be about 4mm, which is about twice the separation distance. In addition, the first magnetic body 32 and the second magnetic body 42 are each formed of a permanent magnet having a diameter of about 10 mm.

By adjusting the size (diameter and length) of the first magnetic body 32 and the second magnetic body 42 and the distance between the first magnetic body 32 and the second magnetic body 42, the first magnetic body 32 and the second magnetic body 42 are adjusted. By adjusting the magnetic levitation force between the magnetic body 42, it is possible to prevent the step between the steering wheel 10 and the driver airbag module 20 is formed, and to adjust the operating feeling of the driver pressurizing the driver airbag module 20 Can be.

As described above, the horn sound device of the vehicle according to the present invention, the first contact terminal 30 and the second contact terminal 40 for sounding the horn is formed to have a magnetic force, the driver airbag module ( Since 20) is supported, the operation feeling of pressurizing the driver airbag module 20 can be easily adjusted.

In addition, since the existing horn spring elastically supporting the driver airbag module 20 is deleted, and the contact terminals 30 and 40 for sounding the horn replace the function of the horn spring, the installation work is facilitated, and the steering wheel (10) It is possible to prevent the electric wires disposed inside, it is easy to adjust so that a step is not formed between the steering wheel 10 and the driver airbag module 20.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

10: steering wheel 15: bush hole
20: driver airbag module 22: airbag housing
24: Airbag cover 25: Mounting plate
26: inflator 28: coupling member
28a: snap fit body 28b: elastic member
28c: snap-fit pin 28d: cover member
28e: guide hole 30: first contact terminal
32: first magnetic material 34: first terminal portion
40: second contact terminal 42: second magnetic material
44: second terminal portion

Claims (5)

A first contact terminal disposed on the steering wheel and having a magnetic force; And
Disposed in the driver's airbag module and having magnetic force, the same polarities of the first contact terminals are opposed to each other, and are in a magnetic levitation state by the magnetic force of the first contact terminal, And a second contact terminal which contacts the first contact terminal and makes a horn sound. The method according to claim 1,
The first contact terminal includes a first magnetic body having a magnetic force and a first terminal portion disposed in the first magnetic body,
The second contact terminal has a magnetic force, but a second magnetic body having the same polarity as that of the first magnetic body, and disposed opposite to each other, and a second terminal portion disposed on the second magnetic body and contacting the first terminal portion to sound a horn. Horn device of the car containing. The method according to claim 2,
The first terminal unit fastens the first magnetic material to the steering wheel,
The second terminal portion of the vehicle horn sound device for fastening the second magnetic material to the driver airbag module. The method according to claim 1,
A coupling member disposed on the driver airbag module and inserted into the steering wheel to slidably couple the driver airbag module to the steering wheel;
The first contact terminal is spaced apart from the coupling member, the second contact terminal is a horn sound device of the vehicle is disposed below the coupling member. The method of claim 4,
The coupling member
An upper end is coupled to the driver's airbag module, and a snap fit main body having the second contact terminal disposed at a lower side thereof;
An elastic member disposed in the snap fit body;
A snap fit pin carried by the elastic member in the snap fit body;
It is covered on the outside of the snap-fit body to prevent the elastic member and the snap-fit pin from falling in the snap-fit body, and the snap-fit pin protrudes by the elastic force of the elastic member to be caught on the steering wheel Horn member of a vehicle comprising a; cover member formed with a guide hole protruding the snap-fit pin.
KR1020120073443A 2012-07-05 2012-07-05 Horn apparatus of an automobile KR20140005626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120073443A KR20140005626A (en) 2012-07-05 2012-07-05 Horn apparatus of an automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120073443A KR20140005626A (en) 2012-07-05 2012-07-05 Horn apparatus of an automobile

Publications (1)

Publication Number Publication Date
KR20140005626A true KR20140005626A (en) 2014-01-15

Family

ID=50140988

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120073443A KR20140005626A (en) 2012-07-05 2012-07-05 Horn apparatus of an automobile

Country Status (1)

Country Link
KR (1) KR20140005626A (en)

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