EP2321168A1 - Colonne de direction de sécurité pour véhicule - Google Patents

Colonne de direction de sécurité pour véhicule

Info

Publication number
EP2321168A1
EP2321168A1 EP09778156A EP09778156A EP2321168A1 EP 2321168 A1 EP2321168 A1 EP 2321168A1 EP 09778156 A EP09778156 A EP 09778156A EP 09778156 A EP09778156 A EP 09778156A EP 2321168 A1 EP2321168 A1 EP 2321168A1
Authority
EP
European Patent Office
Prior art keywords
steering column
tear
safety
vehicle
steering wheel
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP09778156A
Other languages
German (de)
English (en)
Inventor
Alfred Keschtges
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kart-Tec Ltd & Co KG
Original Assignee
Kart-Tec Ltd & Co KG
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 Kart-Tec Ltd & Co KG filed Critical Kart-Tec Ltd & Co KG
Publication of EP2321168A1 publication Critical patent/EP2321168A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B62D1/11—Hand wheels incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible

Definitions

  • the invention relates to a safety steering column for a vehicle, in particular for a kart.
  • Safety steering columns for vehicles are known in principle. These are, in particular, pipe-in-pipe arrangements which enable the steering column to be pushed together, which in particular prevents the steering column from penetrating into the vehicle. Steering wheels of vehicles without airbag usually have an energy absorbing baffle plate.
  • the invention is based on the object, at least to reduce the disadvantages of the prior art.
  • Another object of the invention is to easily avoid the driver's slip into a karting vehicle in a frontal collision, adjusted to the weight of the driver.
  • the object of the invention is already by a safety steering column for a vehicle and by a
  • the invention relates to a safety steering column for a vehicle, in particular for a karting vehicle.
  • Safety steering column comprises a deformation element, which is arranged between the steering wheel and steering column and which allows under load pivotal movement of the steering wheel to the steering wheel end of the steering column.
  • the driver first comes into contact with the lower rim of the steering wheel.
  • the deformation element gives way and the lower steering wheel rim can escape by the taking place thereby pivotal movement of the steering wheel to the end of the steering column in the direction of travel.
  • the driver then comes in flat contact with substantially the entire surface of the steering wheel, so that the kinetic energy can be dissipated distributed over the entire surface of the steering wheel. Serious injuries, especially in accidents in the
  • Karting sports can be avoided in many accident situations. From a quasi-point load so a surface load.
  • the deformation element is designed such that it does not yield during normal operation of the vehicle.
  • Steering wheel and steering column are preferably removable from the deformation element, in particular unscrewable, formed.
  • the deformation element can be exchanged in a simple manner and in particular adapted to a different driver's weight.
  • the deformation element comprises a substantially U-shaped section, to one's "kel the steering wheel and at its opposite leg
  • the U-shaped section which is preferably formed of sheet metal, in particular of steel, thus has a base and two legs. When loaded from the open side of the U-shaped section, such an arrangement yields more easily than when loaded on the base.
  • the safety steering column is preferably designed such that the steering wheel gives way more easily in the event of a load acting on a lower edge of the steering wheel than on a load acting on an upper edge.
  • the base of the U-shaped portion is arranged in the direction of travel, whereas the open side of the U-shaped portion in
  • the legs of the U-shaped section bend together on contact of the driver with the lower rim of the steering wheel.
  • the base of the U-shaped section can also bend together.
  • the deformation element acts simultaneously as a high energy absorber, which degrades the kinetic energy.
  • the deformation element is formed in a preferred embodiment of the invention such that it comprises a bent sheet, which at least partially in areas with a larger radius of curvature weakened against sections of lesser radius of curvature.
  • Such weakenings can be formed, for example, by lateral recesses, bores or even thinner designed sheet metal.
  • the stress is distributed more uniformly over the entire U-shaped section. Areas with a larger radius of curvature, in particular essentially flat areas, thus contribute to a greater degree to the deformation. At the same time, the weakened portion is more effective as an energy absorbing crumple zone.
  • Deformation element to serve the weight of the driver.
  • a deformation element with a low weight in particular a weight of less than 1000, preferably less than 500 g.
  • the deformation element comprises means for adjusting the angle of the steering wheel to the steering column. So the driver can adjust the steering wheel according to his wishes.
  • InsObesondere is provided to contract the U-shaped configured section via a screw and so to adjust the angle of the steering wheel to the steering column.
  • the deformation element not only serves safety, but at the same time makes it possible to adapt the vehicle, in particular the karts, to the respective driver.
  • the adjusting screw extends substantially parallel to the steering column and engages a bridge of the deformation element arranged between two steering wheel-side vanes. So a particularly simple adjustment is possible.
  • the steering column is fastened to the vehicle with a tear-off element.
  • Attachment or a lower bearing of the steering column has and which is secured in an upper region with a tear-off, which breaks off at a predetermined force, so that the steering column can fold away in the direction of travel.
  • Such a configuration can prevent the frontal impact that the driver, in particular a karts, slips into the vehicle inside. Rather, the driver is lifted on the steering wheel on the Kart.
  • the invention further relates to a tear-off element for the steering column of a vehicle, in particular for a safety steering column described above.
  • the tear-off element comprises means for attachment to a vehicle and a predetermined breaking point.
  • the tear-off element is designed as a bearing for the steering column.
  • the steering column is thus rotatably mounted in the tearing element.
  • the predetermined breaking point is formed by webs arranged on the bearing.
  • the tear-off element is designed as a one-piece plastic component in which the release force at which the tear-off element breaks off can be adjusted over the width of the web.
  • Plastic injection molded part are formed with a tool to provide a plurality of tear elements with different release force.
  • the tear-off element is designed to be interchangeable and can thus be matched to the respective weight or the respective weight class of the driver.
  • tear-off elements are provided which trigger at a force between 0.5 and 20 kN, preferably between 2 and 8 kN.
  • the invention further relates to a vehicle, in particular a kart vehicle with a safety steering column described above.
  • the steering column when installed in a kart, is preferably at an angle between 30 and 70 °, more preferably between 40 and 60 ° to the horizontal.
  • the invention relates to a vehicle, in particular a kart, which comprises a previously described tear-off element, in which therefore no deformation element, but only a tear-off is provided so that the steering column can dodge in the direction of travel.
  • the safety steering column comprises both the deformation element and the tear-off element.
  • FIG. 1 shows the components of a safety steering column with a tear-off element and a deformation element
  • Fig. 2 and Fig. 3 show two different embodiments of a
  • Fig. 4 shows a punched or cut out
  • Fig. 5 shows a tear-off element
  • Fig. 1 the essential components of an embodiment of a safety steering column 1 are shown schematically in a perspective view.
  • the safety steering column 1 comprises a handlebar 2 and a steering wheel 3.
  • a deformation element 5 is attached.
  • the deformation element 5 comprises a substantially U-shaped profile, on one leg of which the steering wheel 3 is fastened by means of the screws 4. On the opposite side, the steering rod 2 is inserted into the deformation element 5 and fastened by means of the screw 6.
  • Handlebar 2 and steering wheel 3 is arranged, has the task, in the event of an accident pivotal movement of the steering wheel to allow the upper end of the steering column 2.
  • the steering wheel 3 can lay substantially flat on the chest of the driver.
  • the force is thereby distributed over a much larger area and arranged on the steering wheel baffle plate (not shown) can develop with almost their entire surface effect.
  • the maximum pressure on the loaded area therefore decreases.
  • the deformation element 5 an adjustment of the angle of the steering wheel 3 to the steering column 2.
  • the screw 9 is inserted through arranged on wings of the deformation element 5 holes 12 and fastened with the nut 10 for this purpose.
  • the nut 10 is designed as a self-locking nut.
  • the screw 9 forms a bridge on which the eyebolt 8 can attack.
  • the eyebolt 8 is pushed through the bore 13.
  • the nut 11 which is screwed onto the eyebolt 8, so the deformation element 5 can be contracted, whereby an adjustment of the angle of the steering wheel 3 to the steering column 2 is possible.
  • the tear-off element 7 which is fastened to the vehicle (not shown), forms an upper bearing of the handlebar 2.
  • the handlebar 2 In the lower area there is another bearing 14 for the handlebar 2, of which only the bearing inner part is shown here.
  • the associated bearing shell (not shown) is attached to the body of the vehicle.
  • the tear-off element 7 releases at a predetermined force, thus tearing off, which allows the steering column 2 to buckle.
  • FIG. 2 shows a perspective view of a deformation element 5.
  • the deformation element 5 consists of a folded sheet-metal part, to which a receptacle 26 for the steering column is fastened, in particular welded.
  • Bore 28 which can serve for centering the steering wheel or for attaching gauges.
  • the deformation element In a substantially straight region, ie a region with a large radius of curvature at the base of the U-shaped profile, the deformation element has lateral recesses 20, which serve as weakening zones.
  • the deformation element 5 is thus weakened in the area with a large radius of curvature with respect to other areas with a smaller radius of curvature 25.
  • the deformation element 5 furthermore has lateral wings 21.
  • the wings 21 close the arranged on the opposite side web 22, whereby a lateral buckling of the steering wheel is prevented.
  • a bore 12 is provided, through which a bolt or a screw can be inserted, which serves as a point of application for an adjustment (not shown).
  • the web 22 is also formed by the folded sheet metal part.
  • the web 22 is also in the manner of a
  • a bore 13 is arranged, which serves to carry out the eyebolt shown in Fig. 1, with which the upper leg of
  • Deformationsiatas 5, to which the steering wheel is attached and the lower leg to which the steering column is attached, can be pulled together. So the angle of the steering wheel to the steering column can be changed.
  • Fig. 3 shows another embodiment of a deformation element, wherein for weakening the base of the U-shaped portion of the deformation element 5 depending on the weight of the driver holes 27 are provided.
  • Fig. 4 shows a punched or cut sheet metal part, from which a deformation element is bent.
  • the sheet metal part comprises a base 30 and the legs 31 and 32, through which the U-shaped base profile is formed in the finished state.
  • the leg 31 serves to attach the steering wheel, whereas the leg 32 serves to fasten the steering column.
  • a recording is welded to the sheet (not shown).
  • the wings 21 are arranged, which have recesses for weight savings.
  • the web 22 is formed in that on the leg 32, the sheet metal part is folded in a U-shape, so that the web 22 is the leg 32 opposite.
  • FIG. 5 shows a schematic view of a tear-off element 7.
  • the tear-off element 7 is made of plastic and is designed in particular as an injection-molded part.
  • the tear-off part has two holes 40 with which it is attached to a vehicle, in particular a kart.
  • a transverse, in particular perpendicular to the holes 40 extending guide 41 serves as a bearing for the handlebar (not shown).
  • the guide 41 is cut on both sides by the grooves 43 and is held together only by a relatively narrow web 42. In the event of an accident, the web 42 breaks at a predetermined force.
  • the release force of the tear-off element can be determined in a very simple manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Controls (AREA)

Abstract

L'invention concerne une colonne de direction de sécurité pourvue d'un élément à déformation permettant un pivotement du volant autour de l'extrémité de la colonne de direction lors d'une collision.
EP09778156A 2008-08-27 2009-08-27 Colonne de direction de sécurité pour véhicule Withdrawn EP2321168A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810039827 DE102008039827B4 (de) 2008-08-27 2008-08-27 Sicherheitslenksäule für ein Fahrzeug
PCT/EP2009/006219 WO2010022947A1 (fr) 2008-08-27 2009-08-27 Colonne de direction de sécurité pour véhicule

Publications (1)

Publication Number Publication Date
EP2321168A1 true EP2321168A1 (fr) 2011-05-18

Family

ID=41258908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09778156A Withdrawn EP2321168A1 (fr) 2008-08-27 2009-08-27 Colonne de direction de sécurité pour véhicule

Country Status (3)

Country Link
EP (1) EP2321168A1 (fr)
DE (1) DE102008039827B4 (fr)
WO (1) WO2010022947A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567246A (en) * 1967-09-19 1971-03-02 Daimler Benz Ag Safety steering wheel

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1586115A (fr) * 1968-07-02 1970-02-13
DE6938909U (de) * 1969-10-01 1970-01-02 Kronprinz Ag Vorrichtung zum daempfen eines einmaligen stosses
JPS6181276A (ja) * 1984-09-27 1986-04-24 Toyota Motor Corp セルフアライニングステアリングホイ−ルの成形方法
JPS63301170A (ja) * 1987-05-30 1988-12-08 Toyoda Gosei Co Ltd ステアリングホイ−ル
JP3052731B2 (ja) * 1994-05-10 2000-06-19 三菱自動車工業株式会社 自動車のステアリング装置
WO2000020770A1 (fr) * 1998-10-08 2000-04-13 Imo Industries, Inc. Joint universel pour systeme de direction de vehicule
DE10208706A1 (de) * 2002-02-25 2003-09-11 Takata Petri Ag Lenkradskelett für ein Kraftfahrzeug
DE102004019961A1 (de) * 2004-04-23 2005-11-17 Invenio Gmbh Engineering Services Lenksäule für Kartfahrzeuge
KR100599481B1 (ko) * 2004-09-06 2006-07-12 현대모비스 주식회사 조향컬럼의 충격흡수장치

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567246A (en) * 1967-09-19 1971-03-02 Daimler Benz Ag Safety steering wheel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010022947A1 *

Also Published As

Publication number Publication date
WO2010022947A1 (fr) 2010-03-04
DE102008039827A1 (de) 2010-03-18
DE102008039827B4 (de) 2014-01-09

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