WO1997047496A1 - Agencement de pare-chocs - Google Patents

Agencement de pare-chocs

Info

Publication number
WO1997047496A1
WO1997047496A1 PCT/NO1997/000151 NO9700151W WO9747496A1 WO 1997047496 A1 WO1997047496 A1 WO 1997047496A1 NO 9700151 W NO9700151 W NO 9700151W WO 9747496 A1 WO9747496 A1 WO 9747496A1
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement
locking
cylinder rod
vehicle
locking means
Prior art date
Application number
PCT/NO1997/000151
Other languages
English (en)
Inventor
Roald H. Pedersen
Rolf Vold
Original Assignee
Hydro Raufoss Automotive As
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 Hydro Raufoss Automotive As filed Critical Hydro Raufoss Automotive As
Priority to DE19781796T priority Critical patent/DE19781796T1/de
Publication of WO1997047496A1 publication Critical patent/WO1997047496A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/38—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles
    • B60R19/40—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles in the direction of an obstacle before a collision, or extending during driving of the vehicle, i.e. to increase the energy absorption capacity of the bumper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
    • B60R2019/182—Structural beams therefor, e.g. shock-absorbing made of metal of light metal, e.g. extruded

Definitions

  • the present invention relates to an arrangement in a structural member, especially a structural beam and more specifically a bumper bar for a vehicle or vessel.
  • the bumper bar is held in a predetermined initial posi ⁇ tion by hydraulic shock absorber units, which are fast ⁇ ened to a transverse supporting member.
  • the shock absorber units are aligned in such a way that the piston rods move with the bumper, the connections of the piston rods and the bumper being pivotal.
  • GB 2,233,423 (Chin-Hun Yang) discloses hydraulic units which are supporting bumpers and are arranged to auto ⁇ matically extend on application of the vehicle brakes, an impact then causing hydraulic fluid to be expelled through a throttle. Further bumper systems having extendable means therein, are disclosed in US 5,370,429 (Reuber et al.), US 5,011,205 (Liu), US 4,518,183 (Lee) and DE 3808813 (Schubert/MAN Nutzweakenede GmbH).
  • An object of the present invention is to provide an arrangement in a bumper bar, which in a more effective manner can be expanded in an emergency situation, and which in an effective manner can be reset after the oc ⁇ currence of an emergency situation.
  • a further object of the present invention is to provide an arrangement in a bumper bar which can be manufactured from relatively simple and inexpensive parts, at the same time as the overall arrangement can be safely operated and reset.
  • the arrangement will comprise means for pneumatic ejection using a pressure accumulator as energy source, which in a further specific embodiment can be combined with spring return means.
  • the arrangement according to the pre- sent invention may comprise means which are combined with conical/cylindrical locking segments which may abut against a cylindrical pipe having a conical flange port-
  • Fig. 1 is an exploded perspective view of an embodiment of the arrangement according to the invention.
  • Fig. 2 is a plan view, partly in section, illustrating details of the embodiment illustrated in Fig. 1, the upper part illustrating the expandable bumper means in expanded position, whereas the lower part illustrates said expandable/retractable bumper means in reset or retracted position.
  • Fig. 3 is a sectional view through another embodiment of an expandable bumper means according to the present in ⁇ vention, here illustrated in a retracted and ready for use position.
  • Fig. 4 is a sectional view, similar to Fig. 3, but illus ⁇ trating the cylinder in its expanded and locked position.
  • Fig. 1 and Fig. 2 there is illustrated an example of an arrangement according to the present invention, here being designed as a pneumatic, active bumper bar system.
  • a pneumatic, active bumper bar system here being designed as a pneumatic, active bumper bar system.
  • a system can also be designed in several other ways, without departing from the scope of the present invention.
  • a bumper bar 1 which is made of a sturdy material, for example a metal, and more specifically aluminium, and which is covered by a plastic mantle 2, which elements are so arranged that they can be displaced in a direction away from the vehicle (not illustrated) on which said bar 1 and plastic mantle 2 are mounted.
  • This displacement will take place in an emergency situation, for thereby elongating respectively expanding the deformation zone of the vehicle in question.
  • Such an emergency situation can first of all occur during driving of the vehicle, but the system can also be arranged to operate during parking.
  • the bar 1 with its plastic mantle 2 are supported by two pneumatic cylinders 3A and 3B, respectively, which receive pressure air from a pressure container 4 via a magnet valve 5.
  • one of the cylinders 3A is illus ⁇ trated with its cylinder rod 3AA in retracted or resting position, whereas to the left in Fig. 1 the second cylin ⁇ der 3B is illustrated with its cylinder rod 3BB in its expanded or elongated position.
  • An emergency situation can be sensed through any appro- priate sensors, for example proximity sensors, velocity sensors, etc., there being in Fig. 1 illustrated two sensors 6A and 6B arranged in the plastic mantle 2, said sensors having a connection with for example a computer unit/sensor unit 6, which in turn is connected to said magnet valve 5 controlling the operation of said pressure container 4.
  • sensors for example proximity sensors, velocity sensors, etc.
  • Fig. 1 illustrated two sensors 6A and 6B arranged in the plastic mantle 2, said sensors having a connection with for example a computer unit/sensor unit 6, which in turn is connected to said magnet valve 5 controlling the operation of said pressure container 4.
  • Fig. 2 there are illustrated details of a preferred embodiment of pneumatic cylinders 3A, 3B, wherein said cylinders 3A, 3B are housed in a cylindrical tube 9, i.e. a so-called guiding tube having a centrally located guiding rod 10 therein.
  • the tube 9 is at its rear end attached to the framework of the vehicle in question, whereas at its front end the tube or pipe 9 is provided with a conical flange constituting a conical seat 9A onto which the locking segments 7 can abut when the respective pneumatic cylinder 3A, 3B is in its expanded position, see the upper part of Fig. 2.
  • the arrangement comprises means which are adapted to pneumatically and synchronically operate said cylinders 3A and 3B as well as said locking segments 7, i.e. through the same pneumatic conduits, possibly as illustrated in Fig. 1.
  • Fig. 2 it is with a first arrow P1 illustrated the supply of air or corresponding fluid to any pneumatic cylinder 3A or 3B, or any cylinder rod 3AA or 3BB. Further, with a second arrow P2 it is illustrated the supply of air or a corresponding fluid to the ring volume 7AA represented by said expansion ring 7A.
  • each pneumatic cylinder 3A and 3B there is arranged an abutment buffer 11 including a sliding segment surrounding said guiding rod 10, and arranged to abut against a closing lid 12 at the front of said tube 9, said abutment buffer 11 also being designed so as to entrain the return spring 8' on its way from retracted to expanded position of the respective cylinder 3A and 3B.
  • the pneumatic system When the emergency situation has ceased to exist, the pneumatic system is depressurized, which means that the locking segments 7 will be released from their locking position as illustrated at the upper part of Fig. 2, to their disengaged position as illustrated in the lower part of Fig. 2, for thereby allowing the return spring 8 to withdraw the respective cylinder 3A, 3B to its reset position, whereafter the system may be pressurized once more and made ready for another emergency situation.
  • each cylinder 3A, 3B In order to align each cylinder rod 3AA and 3BB, respec ⁇ tively, when in retracted position, there is at the front end of each cylinder 3A, 3B provided a second, stationary conical seat 12A which is adapted to receive a corres ⁇ ponding conically shaped alignment ring 12 on the displaceable cylinder rod 3AA and 3BB, respectively.
  • Fig. 3 and Fig. 4 which are sections through another embodiment of an expandable bumper means according to the present invention, the locking segments are operated by the pressure supplied to the individual cylinders.
  • the cylinder 103A comprises a cylinder rod 103AA housed in a cylindrical guiding tube 109, which at its rear end defines a pressure chamber 115 receiving an air pressure P101 through an appropriate supply means.
  • the cylinder rod 103AA is provided with a conically shaped locking element 107 arranged around a complementary conically shaped guiding buffer 111 having a rim 116 adapted to entrain a first return spring 108 on its way from retracted position, as illustrated in Fig.
  • the locking segment 107 is arranged to rest against a resilient member, here designed for example as a spring washer 118, for example via a return hook 119, which in turn communicates with a release/locking means 120 adapted to accomplish the following functions:
  • the cylinder rod 103AA with its release/locking means 120 may appropriately rest against a buffer means 122.
  • Fig. 4 there is also illustrated an abrasive ring 123 arranged at the frontend of the tube 109.
  • the sensor unit 6 may com ⁇ prise a microprocessor processing all appropriate signals coming from any sensor which may monitor any parameter which can be used for indicating an emergency situation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

La présente invention concerne un agencement d'élément structurel, notamment une poutre structurelle et plus particulièrement une barre (1) de pare-chocs destinée à un véhicule ou bateau. Afin que agencement constitue un système relativement rapide et bon marché, il est doté d'un temps de réaction court et est facile à replacer dans son état initial. Selon l'invention, il est suggéré que cet agencement comprenne des moyens de déplacement de la barre (1) par rapport au véhicule, notamment lors d'une situation de danger, afin d'allonger, c'est-à-dire d'agrandir respectivement les zones de déformation du véhicule, tout en permettant simultanément à des moyens de blocage (7; 107) de la barre d'être efficaces.
PCT/NO1997/000151 1996-06-10 1997-06-10 Agencement de pare-chocs WO1997047496A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19781796T DE19781796T1 (de) 1996-06-10 1997-06-10 Stoßstangenaufbau

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO962433 1996-06-10
NO962433A NO962433L (no) 1996-06-10 1996-06-10 Anordning ved stötfanger

Publications (1)

Publication Number Publication Date
WO1997047496A1 true WO1997047496A1 (fr) 1997-12-18

Family

ID=19899500

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1997/000151 WO1997047496A1 (fr) 1996-06-10 1997-06-10 Agencement de pare-chocs

Country Status (3)

Country Link
DE (1) DE19781796T1 (fr)
NO (1) NO962433L (fr)
WO (1) WO1997047496A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0857619A1 (fr) * 1997-02-05 1998-08-12 REHAU AG + Co Dispositif d'absorption d'énergie
EP0894677A1 (fr) * 1997-07-28 1999-02-03 Ecia - Equipements Et Composants Pour L'industrie Automobile Agencement d'une poutre de pare-chocs dans un véhicule automobile
FR2780928A1 (fr) * 1998-07-09 2000-01-14 Giat Ind Sa Pare-choc equipe de moyens d'amortissement
WO2000002751A1 (fr) * 1998-07-09 2000-01-20 Giat Industries Pare-choc equipe de moyens d'amortissement
GB2379194A (en) * 2001-08-28 2003-03-05 Takis Sozou Emergency responsive vehicle bumper
EP1352790A2 (fr) * 2002-04-09 2003-10-15 DURA Automotive Systems Reiche GmbH & Co. KG Pare-chocs monté de manière déplacable à un châssis de véhicule
WO2004108482A1 (fr) * 2003-06-06 2004-12-16 Ssab Hardtech Ab Poutre de pare-chocs pour vehicule
GB2420532A (en) * 2004-11-25 2006-05-31 Takis Sozou Emergency responsive vehicle bumper
WO2006083209A1 (fr) 2005-02-01 2006-08-10 Autoliv Development Ab Dispositif de securite
WO2007097641A1 (fr) 2006-02-27 2007-08-30 Norsk Hydro Asa Systeme de protection contre les chocs pour un vehicule et procede pour la liberation et l'extension d'un systeme de protection contre les chocs pour un vehicule
CN104309558A (zh) * 2014-10-27 2015-01-28 重庆市永宏陈记实业有限公司 具有主动防撞功能的汽车保险杠
CN104554100A (zh) * 2015-01-30 2015-04-29 湖州职业技术学院 一种汽车液压吸能保险装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518183A (en) * 1984-02-27 1985-05-21 Lee Joseph K Extendible safety impact bags for vehicles
DE3739342A1 (de) * 1987-11-20 1989-06-01 Bayerische Motoren Werke Ag Befestigungsvorrichtung fuer kraftfahrzeugstossfaenger
DE3808813A1 (de) * 1988-02-12 1989-08-24 Man Nutzfahrzeuge Gmbh Aufprallvorrichtung fuer nutzfahrzeuge
US5011205A (en) * 1990-07-09 1991-04-30 Liu Shiu Yen Telescopically-operated safety vehicle bumper
US5033569A (en) * 1990-04-06 1991-07-23 Hayes Steven L Airbag crash protection
US5370429A (en) * 1991-04-20 1994-12-06 Alfred Teves Gmbh & Co., Ohg Bumper system having an extendable bumper for automotive vehicles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518183A (en) * 1984-02-27 1985-05-21 Lee Joseph K Extendible safety impact bags for vehicles
DE3739342A1 (de) * 1987-11-20 1989-06-01 Bayerische Motoren Werke Ag Befestigungsvorrichtung fuer kraftfahrzeugstossfaenger
DE3808813A1 (de) * 1988-02-12 1989-08-24 Man Nutzfahrzeuge Gmbh Aufprallvorrichtung fuer nutzfahrzeuge
US5033569A (en) * 1990-04-06 1991-07-23 Hayes Steven L Airbag crash protection
US5011205A (en) * 1990-07-09 1991-04-30 Liu Shiu Yen Telescopically-operated safety vehicle bumper
US5370429A (en) * 1991-04-20 1994-12-06 Alfred Teves Gmbh & Co., Ohg Bumper system having an extendable bumper for automotive vehicles

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0857619A1 (fr) * 1997-02-05 1998-08-12 REHAU AG + Co Dispositif d'absorption d'énergie
EP0894677A1 (fr) * 1997-07-28 1999-02-03 Ecia - Equipements Et Composants Pour L'industrie Automobile Agencement d'une poutre de pare-chocs dans un véhicule automobile
FR2780928A1 (fr) * 1998-07-09 2000-01-14 Giat Ind Sa Pare-choc equipe de moyens d'amortissement
WO2000002751A1 (fr) * 1998-07-09 2000-01-20 Giat Industries Pare-choc equipe de moyens d'amortissement
US6334639B1 (en) 1998-07-09 2002-01-01 Giat Industries Bumper equipped with shock-absorbing means
GB2379194B (en) * 2001-08-28 2005-02-02 Takis Sozou A safety apparatus for a motor vehicle
GB2379194A (en) * 2001-08-28 2003-03-05 Takis Sozou Emergency responsive vehicle bumper
EP1352790A2 (fr) * 2002-04-09 2003-10-15 DURA Automotive Systems Reiche GmbH & Co. KG Pare-chocs monté de manière déplacable à un châssis de véhicule
EP1352790A3 (fr) * 2002-04-09 2004-02-04 DURA Automotive Systems Reiche GmbH & Co. KG Pare-chocs monté de manière déplacable à un châssis de véhicule
WO2004108482A1 (fr) * 2003-06-06 2004-12-16 Ssab Hardtech Ab Poutre de pare-chocs pour vehicule
US7357430B2 (en) 2003-06-06 2008-04-15 Gestamp Hardtech Ab Bumper beam for a vehicle
GB2420532A (en) * 2004-11-25 2006-05-31 Takis Sozou Emergency responsive vehicle bumper
GB2420532B (en) * 2004-11-25 2008-03-05 Takis Sozou A safety apparatus for a motor vehicle
WO2006083209A1 (fr) 2005-02-01 2006-08-10 Autoliv Development Ab Dispositif de securite
EP1843920A1 (fr) * 2005-02-01 2007-10-17 Autoliv Development Aktiebolag Dispositif de securite
EP1843920A4 (fr) * 2005-02-01 2010-06-23 Autoliv Dev Dispositif de securite
WO2007097641A1 (fr) 2006-02-27 2007-08-30 Norsk Hydro Asa Systeme de protection contre les chocs pour un vehicule et procede pour la liberation et l'extension d'un systeme de protection contre les chocs pour un vehicule
CN104309558A (zh) * 2014-10-27 2015-01-28 重庆市永宏陈记实业有限公司 具有主动防撞功能的汽车保险杠
CN104554100A (zh) * 2015-01-30 2015-04-29 湖州职业技术学院 一种汽车液压吸能保险装置

Also Published As

Publication number Publication date
DE19781796T1 (de) 1999-05-27
NO962433L (no) 1997-12-11
NO962433D0 (no) 1996-06-10

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