WO2014175565A1 - Horn switch device, airbag apparatus, steering wheel - Google Patents

Horn switch device, airbag apparatus, steering wheel Download PDF

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Publication number
WO2014175565A1
WO2014175565A1 PCT/KR2014/002704 KR2014002704W WO2014175565A1 WO 2014175565 A1 WO2014175565 A1 WO 2014175565A1 KR 2014002704 W KR2014002704 W KR 2014002704W WO 2014175565 A1 WO2014175565 A1 WO 2014175565A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch device
horn switch
contact
steering wheel
movable member
Prior art date
Application number
PCT/KR2014/002704
Other languages
English (en)
French (fr)
Inventor
Doo Seob Jung
Do Gwan Kim
Original Assignee
Autoliv Development Ab
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 Autoliv Development Ab filed Critical Autoliv Development Ab
Publication of WO2014175565A1 publication Critical patent/WO2014175565A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
    • B60R21/2035—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit
    • B60R21/2037—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit the module or a major component thereof being yieldably mounted, e.g. for actuating the horn switch or for protecting the driver in a non-deployment situation
    • 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
    • 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
    • B60Q5/001—Switches therefor
    • B60Q5/003—Switches therefor mounted on the steering wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R21/36—Protecting non-occupants of a vehicle, e.g. pedestrians using airbags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/04—Return force magnetic

Definitions

  • the present invention relates to a horn switch device.
  • the present invention relates to a horn switch device capable of improving a restoring structure to support a movable member in such a manner that the movable member is pressed down, and a horn contact structure having electric connection when the movable member is pressed down.
  • the present invention relates to an airbag apparatus having the horn switch device and a steering wheel including the airbag apparatus.
  • a steering wheel of most vehicles includes a steering wheel body securely coupled with a steering column, and at least one movable member that may be pressed down against force of a restoring member with respect to the steering wheel body. As the movable member is pressed down, the steering wheel makes contact with a horn contact part.
  • the movable member that may be pressed down is an airbag module or a portion of the airbag module.
  • the entire portion of the airbag module that is, an assembly substantially including a housing, an airbag received at the folded state in the housing, an inflator connected to the housing, and a cover member to cover the housing is included in the steering wheel body by a spring and a guide member.
  • the first horn contact part is fixed to the side of the housing, and the second horn contact part is fixed to the side of the steering wheel body.
  • the airbag housing When the movable member is the portion of the airbag module, the airbag housing may be securely coupled with the steering wheel, and only the cover member to cover the housing may be pressed down against the force of the restoring member.
  • the restoring member generally includes a spring, and makes contact with a horn contact part as the cover member is pressed down.
  • Patent document 1 U.S. Patent Application Publication N o. 2002/0153714 A1
  • Patent document 2 U.S. Patent Application Publication N o. 2002/0124682 A1
  • the horn switch device has a complex design structure as the spring and the guide member are required in order to elastically support the movable member as described above.
  • the touch of the horn switch device is degraded when the horn switch device is actuated.
  • the movable member when the movable member is pressed, the movable member is not pressed while maintaining a level state, but tilted to one side due to the gap between the guide member and a structure through which the guide member passes.
  • An object of the present invention provides a horn switch device capable of reducing the number of parts by simplifying a restoring structure of the horn switch device, an airbag apparatus, and a steering wheel.
  • Another object of the present invention provides a horn switch device capable of improving the touch of a movable member when the movable member is pressed by omitting a spring constituting a restoring structure, an airbag apparatus, and a steering wheel.
  • Still another object of the present invention provides a horn switch device capable of stably pressing a movable member, an airbag apparatus, and a steering wheel.
  • a horn switch device including a movable member pressed by a pressing force, a fixed member fixed to face the movable member, a restoring member interposed between the movable member and the fixed member and allowing the movable member to levitate in a restoring direction by a magnetic force, a first contact member provided at a side of the movable member, and a second contact member provided at a side of the fixed member to make contact with the first contact member when the movable member is pressed by the pressing force.
  • the restoring member may include a first magnet provided at the side of the movable member, and a second magnet provided at the side of the fixed member to face the first magnet.
  • Mutually-facing sides of the first and second magnets may have an identical polarity.
  • the first and second magnets may include a permanent magnet.
  • the first magnet may be formed integrally with the first contact member, and the second magnet may be formed integrally with the second contact member.
  • the horn switch device may further include a guide member to movably support the movable member with respect to the fixed member.
  • the guide member may be fixed to the fixed member while passing through the first and second magnets.
  • One of the first and second magnets may be provided in a central portion thereof with a recess part, and one of the first and second magnets may be inserted into the recess part.
  • the movable member may be an airbag apparatus.
  • the movable member may be a cover member of an airbag apparatus.
  • the fixed member may be a steering wheel hub, or a steering wheel extension part extending from a steering wheel hub.
  • the fixed member may be a housing extension part to receive an airbag of the airbag apparatus.
  • the first contact member may include a first contact pin coupled with the movable member while passing through a through hole of the fixed member, and the second contact member may include a contact wire provided around the through hole of the fixed member.
  • an airbag apparatus including the horn switch device.
  • a steering wheel of a vehicle which includes the airbag apparatus.
  • the touch of the horn switch device can be improved when the horn switch device is actuated as the restoring member restores the pressing member by magnetic force of the restoring member.
  • the structure of the horn switch device can be simplified by providing a magnet to restore the pressing member integrally with the contact member.
  • the pressing member when the pressing member is actuated, the pressing member is not tilted, but stably pressed.
  • FIG. 1 is a sectional view showing the structure of a steering wheel according to one embodiment of the present invention.
  • FIG. 2 is an enlarged view showing a marked part II of FIG. 1.
  • FIG. 3 is a sectional view showing a horn switch device according to another embodiment of the present invention.
  • FIG. 4 is a sectional view showing a horn switch device according to another embodiment of the present invention.
  • FIG. 5 is a sectional view showing a horn switch device according to still another embodiment of the present invention.
  • FIG. 6 is a sectional view showing the structure of a steering wheel according to another embodiment of the present invention.
  • FIG. 7 is an enlarged view showing a marked part VII of FIG. 6.
  • FIG. 8 is a sectional view showing the structure of a steering wheel according to still another embodiment of the present invention.
  • FIG. 9 is an enlarged view showing a marked part IX of FIG. 8.
  • FIG. 10a is an enlarged view showing a marked part X of FIG. 8.
  • FIG. 10b illustrates the contact state of the contact member of FIG. 8.
  • FIG. 1 is a sectional view showing the structure of a steering wheel 1 according to one embodiment of the present invention.
  • the steering wheel 1 includes a steering wheel skeleton 10 and an airbag apparatus 30.
  • the steering wheel skeleton 10 includes a cup-shaped steering wheel hub 11, a plurality of steering wheel spokes 13 extending from the steering wheel hub 11, and a steering wheel rim 15 connected with the steering wheel hub 11 through the steering wheel spoke 13 and surrounded in the form of a foam.
  • a part of the steering wheel rim 15 surrounded in the form of the foam around the steering wheel spoke 13 will be referred to as a steering wheel extension part 17.
  • the airbag apparatus 30 includes an inflator 31 to generate gas, an airbag housing 34 having a base 33 to which the inflator 31 is supported, an airbag 35 received at the folded state in the airbag housing 34, and a cover member 37 to cover an opening the airbag housing 34.
  • a horn switch device 100 is interposed between the base 33 and the steering wheel hub 11.
  • the airbag apparatus 30 is provided movably up and down in the direction of a central axis C perpendicular to the steering wheel hub 11 in order to actuate the horn switch device 100.
  • the airbag apparatus 30 serves as a movable member, and the steering wheel hub 11 serves a fixed member.
  • FIG. 2 is an enlarged view showing a marked part II of FIG. 1.
  • the horn switch device 100 includes a restoring member 110 interposed between the base 33 of the airbag housing 34 serving as a movable member and the steering wheel hub 11 serving as a fixed member, and a contact member 130 making contact with the base 33 when the base 33 is pressed down so that a horn honks.
  • the restoring member 110 includes a first magnet 111 provided on the base 33 and a second magnet 113 provided on the steering wheel hub 11 to face the first magnet 111.
  • the first and second magnets 111 and 113 may include permanent magnets.
  • the mutually-facing sides of the first and second magnets 111 and 113 have the same polarity.
  • repulsive force is generated between the first and second magnets 111 and 113, so that the base 33 levitates in an upward direction which is a restoring direction from the steering wheel hub 11.
  • the contact member 130 may include first and second contact members 131 and 133 provided integrally with the first and second magnets 111 and 113, respectively. When the first contact member 131 makes contact with the second contact member 133, the horn honks.
  • the base 33 is supported movably up and down with respect to the steering wheel hub 11 by the guide member 150.
  • the guide member 150 may include at least one base hook 151 provided at the side of the base 33 and at least one steering hook 153 provided at the steering wheel hub 11.
  • the guide member 150 supports the base 33, which levitates due to the repulsive force generated between the first and second magnets 111 and 113, to the steering wheel hub 11.
  • the base hook 151 is coupled with the base 33 serving as a movable member so that the base hook 151 is provided movably with respect to the steering hook 153.
  • the base hook 151 slides along the steering hook 153, and the first contact member 131 makes contact with the second contact member 133 so that the horn honks.
  • the base 33 is restored to the original state thereof by the repulsive force between the first and second magnets 111 and 113 so that the base 33 moves upward.
  • first and second contact members 131 and 133 are separated from each other to stop the honking of the horn.
  • FIG. 3 is a sectional view showing a horn switch device 200 according to another embodiment of the present invention.
  • the horn switch device 200 includes a guide member 250 fixed to the steering wheel hub 11.
  • the guide member 250 includes a guide pin 251 having one side fixed to the steering wheel hub 11 and an opposite side passing through a through hole 33a of the base 33.
  • the guide pin 251 guides the base 33 so that the base 33 moves up and down.
  • the guide pin 251 may include an anti-separation step 253 to prevent the base 33 from being out of the guide pin 251 when the base 33 moves upward.
  • the guide pin 251 supports the base 33 levitating by the repulsive force between the first and second magnets 111 and 113.
  • the guide pin 251 may be substituted for the guide member 250 shown in FIG. 2.
  • the central portions of the first and second magnets 111 and 113 are formed therein with pin holes 111a and 113a so that the guide pin 251 passes through the pin holes 111a and 113.
  • first and second contact members 131 and 133 are formed therein with pin holes 131a and 133a so that the guide pin 251 passes through the pin holes 131a and 133a.
  • the first and second contact members 131 and 133 may not be provided at the substantially-central portions of the first and second magnets 111 and 113, but may be provided at lateral portions of the first and second magnets 111 and 113 which are positioned out of the guide pin 251. In this case, the first and second contact members 131 and 133 do not require additional pin holes.
  • FIG. 4 is a sectional view showing a horn switch device according to another embodiment of the present invention.
  • the first and second contact members 131 and 133 may be provided separately from the first and second magnets 111 and 113.
  • first contact member 131 is supported to the base 33 by a first support member 141
  • second contact member 133 is supported to the steering wheel hub 11 by a second support member 143.
  • FIG. 5 is a sectional view showing a horn switch device 400 according to still another embodiment of the present invention.
  • a restoring member 410 of the horn switch device 400 includes a first magnet 411 having a rod shape and a second magnet 413 including a recess part 413a into which one end of the first magnet 411 is inserted.
  • the peripheral portion of the recess part 413a of the second magnet 413 has the same polarity as that of an inserting part of the first magnet 411, so that repulsive force is generated in a vertical direction V and a horizontal direction H.
  • the base 33 can be prevented from being fluidly tilted in a predetermined side direction without being pressed down while maintaining a level state. Accordingly, the pressing operation of the base 33, that is, the airbag apparatus can be smoothly performed.
  • the shapes of the first and second magnets 411 and 413 may be changed to each other.
  • the first magnet 411 may include a recess part
  • the second magnet 413 may have a rod shape.
  • FIG. 6 is a sectional view showing the structure of a steering wheel 2 according to another embodiment of the present invention
  • FIG. 7 is an enlarged view showing a marked part VII of FIG. 6.
  • the steering wheel 2 includes an airbag apparatus 40 including a horn switch device 500.
  • the airbag apparatus 40 is supported to the steering wheel hub 11 by an anchor member 38.
  • the horn switch device 500 is interposed between an airbag cover 37 serving as a movable member and the airbag housing 34 serving as a fixed member.
  • the airbag cover 37 includes a protrusion 37a projecting inward thereof, and a support bracket 37b is provided on the protrusion 37a.
  • the airbag housing 34 includes a housing extension part 34a facing the support bracket 37b.
  • the horn switch device 500 is interposed between the support bracket 37b and the housing extension part 34a.
  • the horn switch device 500 is substantially identical to the horn switch device 200, the details thereof will be substituted with the above description.
  • FIG. 8 is a sectional view showing the structure of a steering wheel 3 according to still another embodiment of the present invention.
  • a horn switch device 600 of the steering wheel 3 includes a restoring member 610 between an airbag apparatus 3 and the steering wheel connection part 17 and contact members 630 interposed between the airbag apparatus 3 and the steering wheel hub 11.
  • the steering wheel connection part 17 surrounds the steering wheel spoke 13 in the form of a foam.
  • the airbag apparatus 30 serves as a movable member, and the steering wheel hub 11 and the steering wheel connection part serve as fixed members.
  • FIG. 9 is an enlarged view showing a marked part IX of FIG. 8.
  • the restoring member 610 of the horn switch device 600 is interposed between a flange part 34C of the airbag housing 34 and a mounting surface 17a of the steering wheel connection part 17.
  • the flange part 34c protrudes outward of an upper end of the airbag housing 34 while making contact with an inner surface of the airbag cover 37.
  • the restoring member 610 may include a first magnet 611 provided on the flange part 34c of the airbag housing 34 and a second magnet 613 provided on the mounting surface 17a formed at the inner part of the steering wheel connection part 17.
  • FIG. 10a is an enlarged view showing a marked part X of FIG. 8.
  • FIG. 10b illustrates the contact state of the contact member of FIG. 8.
  • the contact member 630 includes a first contact member 631 fixedly coupled with the base 33 of the airbag housing 34 and a second contact member 633 provided on the steering wheel hub 11 to make contact with the first contact member 631 when the base 33 is pressed down so that the horn honks.
  • the first contact member 631 has an upper end fixedly coupled with the base 33, and a lower end including a contact pin 632 passing through a through hole 11d of the steering wheel hub 11.
  • the contact pin 632 includes a support part 632a supported to a top surface of the base 33 while making contact with the top surface of the base 33, a contact surface 632b formed at a lower portion of the contact pin 632 and inclined toward the center of the contact pin 632, and a cone-shaped end part 32d connected to the contact surface 632b through an interposed part 632c protruding from a lower end of the contact surface 632b.
  • the second contact member 633 may include a contact wire 634 which is provided between a support surface 632e of the cone-shaped end part 632d and an outer surface of the steering wheel hub 11.
  • the contact wire 634 is adjacent to the through hole 11d and supported by a support member 636 while substantially corresponds to the interposed part 632c.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Push-Button Switches (AREA)
  • Steering Controls (AREA)
  • Air Bags (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
PCT/KR2014/002704 2013-04-24 2014-03-31 Horn switch device, airbag apparatus, steering wheel WO2014175565A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0045416 2013-04-24
KR1020130045416A KR101585098B1 (ko) 2013-04-24 2013-04-24 혼 스위치 장치, 에어백 장치, 스티어링 휠

Publications (1)

Publication Number Publication Date
WO2014175565A1 true WO2014175565A1 (en) 2014-10-30

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ID=51792088

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/002704 WO2014175565A1 (en) 2013-04-24 2014-03-31 Horn switch device, airbag apparatus, steering wheel

Country Status (2)

Country Link
KR (1) KR101585098B1 (ko)
WO (1) WO2014175565A1 (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170178846A1 (en) * 2015-12-18 2017-06-22 GM Global Technology Operations LLC Switch actuation apparatus and method
DE102019101961A1 (de) 2019-01-28 2020-07-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Tastenanordnung
WO2023203368A1 (en) * 2022-04-20 2023-10-26 Joseph Malvin Raj M System and method for honking horn in an automobile

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101684963B1 (ko) * 2014-12-15 2016-12-20 아우토리브 디벨롭먼트 아베 차량용 혼 스위치 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020124682A1 (en) * 2001-03-06 2002-09-12 Trw Automotive Safety Systems Gmbh & Co.Kg Vehicle steering wheel
US20020153714A1 (en) * 2001-04-18 2002-10-24 Martin Kreuzer Assembly unit having an airbag module and a vehicle steering wheel
KR20050015888A (ko) * 2003-08-14 2005-02-21 현대자동차주식회사 차량의 조향 복원장치
US20060028002A1 (en) * 2004-08-05 2006-02-09 Takata Corporation Horn switch gear, airbag system, and steering wheel
WO2009068124A1 (en) * 2007-11-30 2009-06-04 Delphi Technologies, Inc. Steering wheel horn

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020124682A1 (en) * 2001-03-06 2002-09-12 Trw Automotive Safety Systems Gmbh & Co.Kg Vehicle steering wheel
US20020153714A1 (en) * 2001-04-18 2002-10-24 Martin Kreuzer Assembly unit having an airbag module and a vehicle steering wheel
KR20050015888A (ko) * 2003-08-14 2005-02-21 현대자동차주식회사 차량의 조향 복원장치
US20060028002A1 (en) * 2004-08-05 2006-02-09 Takata Corporation Horn switch gear, airbag system, and steering wheel
WO2009068124A1 (en) * 2007-11-30 2009-06-04 Delphi Technologies, Inc. Steering wheel horn

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170178846A1 (en) * 2015-12-18 2017-06-22 GM Global Technology Operations LLC Switch actuation apparatus and method
CN106891807A (zh) * 2015-12-18 2017-06-27 通用汽车环球科技运作有限责任公司 开关致动设备和方法
US10192701B2 (en) 2015-12-18 2019-01-29 GM Global Technology Operations LLC Switch actuation apparatus and method
CN106891807B (zh) * 2015-12-18 2020-01-03 通用汽车环球科技运作有限责任公司 开关致动设备和方法
DE102019101961A1 (de) 2019-01-28 2020-07-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Tastenanordnung
US11501934B2 (en) 2019-01-28 2022-11-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Key arrangement employing mechanical and magnetic forces
WO2023203368A1 (en) * 2022-04-20 2023-10-26 Joseph Malvin Raj M System and method for honking horn in an automobile

Also Published As

Publication number Publication date
KR20140127422A (ko) 2014-11-04
KR101585098B1 (ko) 2016-01-25

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