WO2009033985A1 - Dispositif de déplacement en hauteur - Google Patents

Dispositif de déplacement en hauteur Download PDF

Info

Publication number
WO2009033985A1
WO2009033985A1 PCT/EP2008/061568 EP2008061568W WO2009033985A1 WO 2009033985 A1 WO2009033985 A1 WO 2009033985A1 EP 2008061568 W EP2008061568 W EP 2008061568W WO 2009033985 A1 WO2009033985 A1 WO 2009033985A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
housing
spring plate
excavating
intermediate space
Prior art date
Application number
PCT/EP2008/061568
Other languages
German (de)
English (en)
Inventor
Thomas Wurst
Original Assignee
Wohlfarth, Klaus
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 Wohlfarth, Klaus filed Critical Wohlfarth, Klaus
Priority to EP08803539A priority Critical patent/EP2197696A1/fr
Publication of WO2009033985A1 publication Critical patent/WO2009033985A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
    • B60G15/063—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper characterised by the mounting of the spring on the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/027—Mechanical springs regulated by fluid means
    • B60G17/0272—Mechanical springs regulated by fluid means the mechanical spring being a coil spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/30—Spring/Damper and/or actuator Units
    • B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
    • B60G2202/312—The spring being a wound spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/30—Spring/Damper and/or actuator Units
    • B60G2202/32—The spring being in series with the damper and/or actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/41—Fluid actuator
    • B60G2202/413—Hydraulic actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/124—Mounting of coil springs
    • B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut

Definitions

  • the invention relates to a device for temporary height adjustment of motor vehicles, in particular for retrofitting.
  • struts which contain a unit of a shock absorber and a coil spring.
  • the coil spring is arranged around the shock absorber, wherein a spring plate is arranged to change the vehicle height often in the lower region of the shock absorber housing, which can be adjusted in its position relative to the shock absorber housing to some extent.
  • the object of the invention is to be able to set up motor vehicles in such a way that they can meet the requirements which are meaningful on good lanes and fast driving as well as the requirements when entering underground garages, crossing thresholds or the like.
  • the invention proposes a device with the features mentioned in claim 1. Further developments of the invention are the subject of dependent claims.
  • the invention therefore proposes to mount a housing on a strut, meaningfully on the shock struts of an axle or both axles, that surrounds the shock absorber housing and is arranged between the previous spring seat for accommodating the lower end of the helical spring and the lower end of the helical spring ,
  • the coil spring now rests on the spring plate, which can be moved by the excavating element.
  • the spring plate can then be raised by a certain amount, which leads to an increase in ground clearance. Once the point is overcome where the increased ground clearance is needed, the hydraulic pressure is released through the outlet, whereupon the dead weight of the motor vehicle moves the excavation back to its original position.
  • the hydraulic system which is required for lifting, is preferably a separate, ie separate hydraulic system for this system, which has no connection with the other hydraulic systems of the motor vehicle.
  • a rod seal is used to seal in the space between the inner wall and the outer wall of the housing, with their Rear abuts the inner end edge of the excavating and abuts each with a sealing lip on the outer wall and a sealing lip on the inner wall.
  • the housing is formed in two parts, so that it consists of only a few elements, which improves its reliability and functionality in the long run.
  • the housing may be constructed of a part containing the outer wall and a part containing the inner wall.
  • the excavating element may abut the outer wall and / or the inner wall on at least one, preferably two guide belts.
  • a guide band is made of plastic and reduces the friction between the existing example of aluminum components.
  • the guide band is inserted into a groove which is formed in a NutengePFuse. It can be provided that a NutengePFuse is formed for receiving a guide strip on the excavation and a NutengePFuse for receiving a guide strip on the outer wall or the inner wall.
  • the projecting Nutengephase can simultaneously form a stop to prevent too far extension of Aushubele- element.
  • a scraper ring is arranged in the region of the spring plate adjacent end edge of the inner wall.
  • a seal for sealing against dirt penetrating from the outside, it can be provided that a seal, in particular a bellows, is arranged between the outside of the outer wall of the housing and the outside of the spring plate, which participates in the movement of the excavating element and forms a seal in this way.
  • the housing of the device rests with its underside on a spring plate, which is bolted to the outside of the shock absorber tube or connected in any other way.
  • the housing of the height adjustment needs only to be held, so that the hydraulic line does not need to be removed. This is especially true when the original spring plate is screwed onto a thread of the shock absorber tube, so its height adjustment must be rotated about the axis of the shock absorber housing.
  • the housing in order to secure the housing of the device against rotation during normal operation, according to the invention can have a radial securing device with which it is secured against rotation relative to the spring plate.
  • This may for example be a grub screw which is screwed into a radial threaded hole.
  • Figure 1 is a section through a proposed device of the invention in a half-extended state
  • Figure 2 shows the essential parts of the device proposed by the invention in an extended state
  • Figure 3 is a section through the lower end of a Aushubelements on an enlarged scale
  • Figure 4 in a simplified section the arrangement of a device on a shock absorber.
  • FIG. 1 thus shows an axial section through a device according to the invention.
  • the device comprises a housing 1, which is composed of a part forming an outer wall 2 and a part forming the inner wall 3.
  • the part forming the inner wall 3 is inserted from below into the part forming the outer wall 2 and bears with a shoulder against an inner shoulder of the outer wall.
  • the part forming the inner wall 3 is fixed by a securing ring 4.
  • the locking ring 4 itself is secured by an outer ring 5.
  • a gap 6 is formed between the inner wall 3 and the outer wall 2.
  • a connection 7 a hydraulic line that can be attached to this port, for example screwed.
  • a bore 8 leads into the intermediate space 6.
  • the excavating element 9 is designed as a cylinder sleeve whose inner diameter corresponds to the outer diameter of the inner wall 3.
  • the excavating element 9 has in the region of its lower end two encircling projections 10, the outer diameter of which corresponds to the inner diameter of the outer wall 2.
  • These two annular projections 10 form a groove housing for receiving a guide strip, which reduces the friction between the outer wall and the Aushubelement 9. For reasons of simplification, this guide band is not shown in the drawing.
  • the outer wall 2 also contains, in the region of its upper end on its inner side, two circumferential annular projections 11, which form a similar groove housing for receiving a guide strip.
  • the excavating element 9 can be moved upwards from the illustrated position until the two groove housings bear against one another axially. This forms a stop which limits the maximum excavating movement of the excavating element 9.
  • a spring plate 12 is screwed tight, which has an outer flange 13.
  • the spring plate member 12 includes an external thread, with which it is screwed into an internal thread of the excavating element 9.
  • the underside of the flange 13 bears against the front edge of the excavating element 9.
  • the spring plate member 12 is continued as a sleeve in extension of the lower outer thread having approach.
  • the top of the flange 13 forms the bearing surface for the lower end of the coil spring.
  • the flange 13 protrudes outward to the extent that the coil spring end has sufficient space there to support.
  • a radial threaded bore 15 is provided below the connection 7 for the hydraulic line, which serves to receive a grub screw.
  • a groove is formed, in which the upper end of a bellows 16 is snapped.
  • the lower end of the bellows 16 engages in a corresponding groove on the outside of the outer wall 2 of the housing 1.
  • the bellows 16 covers the device against external influences.
  • the excavating element 9 is then inserted from below initially, which is shown in Figure 2 below the outer wall 2 forming the housing part.
  • a guide band was inserted into the Nutengeratiuse both the outer wall 2 of the housing and the Aushubelements 9.
  • the device is then assembled, in which case then the bellows 16 is then attached.
  • a spring plate 31 is screwed, which engages with an internal thread in an external thread of the shock absorber tube 30. This makes it adjustable in height.
  • This spring plate 31 is similarly constructed in its configuration as the spring plate member 12 above in Figure 1. Thus, it has a kind of hub, which is continued outside of a flange.
  • the housing 1 is set up, and into the threaded bore 15 a grub screw 32 is screwed, which sets the housing in the circumferential direction relative to the spring plate 31.
  • the inner wall 3 of the device surrounds the tube 30 of the shock with little play.
  • the lower end 33 of the coil spring 34 is located on the upper side of the flange 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

L'invention concerne un dispositif de déplacement temporaire en hauteur d'un véhicule automobile, lequel est monté sur une jambe de force, notamment ultérieurement. Le dispositif est monté autour d'un boîtier d'amortisseur entre une coupelle de ressort qui s'y trouve et l'extrémité inférieure d'un ressort à boudin, lequel doit en principe venir reposer sur la coupelle de ressort. Le dispositif comprend sa propre coupelle de ressort, à son extrémité associée au ressort à boudin, laquelle peut être déplacée par rapport au boîtier à l'aide d'un élément de levage. L'élément de levage est guidé par son bord frontal inférieur dans un espace intermédiaire du boîtier dans lequel une pression hydraulique peut être introduite par l'intermédiaire d'un raccordement. L'élément de levage peut ainsi être soulevé par rapport au boîtier du dispositif et redescendre sous l'effet du poids du véhicule automobile après avoir laissé la pression s'échapper. L'étanchéité est réalisée avec une garniture d'étanchéité en forme de tige qui est orientée de sorte à reposer dans l'espace intermédiaire par une lèvre d'étanchéité contre la paroi extérieure et par une lèvre d'étanchéité contre la paroi intérieure du boîtier. Elle est ainsi déplacée par rapport aux deux parois lors d'une opération de déplacement.
PCT/EP2008/061568 2007-09-11 2008-09-02 Dispositif de déplacement en hauteur WO2009033985A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08803539A EP2197696A1 (fr) 2007-09-11 2008-09-02 Dispositif de déplacement en hauteur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007044538.7 2007-09-11
DE200710044538 DE102007044538A1 (de) 2007-09-11 2007-09-11 Einrichtung zur Höhenverstellung

Publications (1)

Publication Number Publication Date
WO2009033985A1 true WO2009033985A1 (fr) 2009-03-19

Family

ID=39929828

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/061568 WO2009033985A1 (fr) 2007-09-11 2008-09-02 Dispositif de déplacement en hauteur

Country Status (3)

Country Link
EP (1) EP2197696A1 (fr)
DE (1) DE102007044538A1 (fr)
WO (1) WO2009033985A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015106622U1 (de) 2014-12-04 2016-03-03 Sistemi Sospensioni S.P.A. Hubantrieb zur Einstellung der vertikalen Position einer Feder eines Stoßdämpfers und einer Federeinheit für eine Fahrzeugaufhängung sowie Stoßdämpfer und Federeinheit für eine Fahrzeugaufhängung, die einen solchen Hubantrieb umfasst
US10953717B2 (en) 2019-05-13 2021-03-23 Honda Motor Co., Ltd. Wear mitigated damper assembly for a vehicle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20110434A1 (it) * 2011-05-16 2012-11-17 Sistemi Sospensioni Spa Sospensione macpherson per veicolo comprendente un dispositivo per regolare l'altezza del corpo del veicolo da terra
DE102011079714A1 (de) 2011-07-25 2013-01-31 Klaus Wohlfahrt Höhenverstelleinrichtung
DE102018119086B4 (de) * 2018-08-06 2023-06-15 Thyssenkrupp Ag Federbein und Fahrzeug

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293047B (de) * 1962-07-05 1969-04-17 Armstrong Patents Co Ltd Selbstpumpendes hydromechanisches Federbein mit innerer Niveauregelung fuer Fahrzeuge
US4159105A (en) * 1978-02-21 1979-06-26 Bouvier Robert A Shock absorber with adjustable spring load
JPS58161610A (ja) * 1982-03-19 1983-09-26 Showa Mfg Co Ltd 油圧緩衝器のばね荷重調整装置
EP0283328A1 (fr) * 1987-02-26 1988-09-21 BENDIX France Correcteur de freinage asservi à la charge d'un véhicule
US5181696A (en) * 1989-08-23 1993-01-26 Kabushiki Kaisha Showa Seisakusho Vehicle height adjusting device for attachment to a hydraulic shock absorber for vehicles
JPH11182609A (ja) * 1997-12-19 1999-07-06 Kayaba Ind Co Ltd オイルダンパの懸架ばね力調整装置
EP1258374A2 (fr) * 2001-05-15 2002-11-20 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Jambe de suspension réglable pour véhicules automobiles
JP2003205722A (ja) * 2002-01-15 2003-07-22 Masaaki Aoki 車高調整装置およびこれを用いた自動車
EP1403103A2 (fr) * 2002-09-28 2004-03-31 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Jambe de suspension réglable pour véhicules automobiles
DE102005008814A1 (de) * 2005-02-24 2006-09-07 H & R Spezialfedern Gmbh & Co. Kg Hydraulische Höhenverstellung für ein Kraftfahrzeugfahrwerk
DE102007015888A1 (de) * 2007-04-02 2008-10-09 Bayerische Motoren Werke Aktiengesellschaft Federanordnung mit verstellbarer Federrate und Federbein

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730177A1 (de) * 1987-09-09 1989-03-30 Bayerische Motoren Werke Ag Federbein fuer kraftfahrzeuge
ES2253009B1 (es) * 2003-01-22 2007-08-16 Jose Luis Guerrero Prieto "suspension regulable para vehiculos".
JP2005121038A (ja) * 2003-10-14 2005-05-12 Kato Masahito サスペンション用ダンパー装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293047B (de) * 1962-07-05 1969-04-17 Armstrong Patents Co Ltd Selbstpumpendes hydromechanisches Federbein mit innerer Niveauregelung fuer Fahrzeuge
US4159105A (en) * 1978-02-21 1979-06-26 Bouvier Robert A Shock absorber with adjustable spring load
JPS58161610A (ja) * 1982-03-19 1983-09-26 Showa Mfg Co Ltd 油圧緩衝器のばね荷重調整装置
EP0283328A1 (fr) * 1987-02-26 1988-09-21 BENDIX France Correcteur de freinage asservi à la charge d'un véhicule
US5181696A (en) * 1989-08-23 1993-01-26 Kabushiki Kaisha Showa Seisakusho Vehicle height adjusting device for attachment to a hydraulic shock absorber for vehicles
JPH11182609A (ja) * 1997-12-19 1999-07-06 Kayaba Ind Co Ltd オイルダンパの懸架ばね力調整装置
EP1258374A2 (fr) * 2001-05-15 2002-11-20 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Jambe de suspension réglable pour véhicules automobiles
JP2003205722A (ja) * 2002-01-15 2003-07-22 Masaaki Aoki 車高調整装置およびこれを用いた自動車
EP1403103A2 (fr) * 2002-09-28 2004-03-31 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Jambe de suspension réglable pour véhicules automobiles
DE102005008814A1 (de) * 2005-02-24 2006-09-07 H & R Spezialfedern Gmbh & Co. Kg Hydraulische Höhenverstellung für ein Kraftfahrzeugfahrwerk
DE102007015888A1 (de) * 2007-04-02 2008-10-09 Bayerische Motoren Werke Aktiengesellschaft Federanordnung mit verstellbarer Federrate und Federbein

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2197696A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015106622U1 (de) 2014-12-04 2016-03-03 Sistemi Sospensioni S.P.A. Hubantrieb zur Einstellung der vertikalen Position einer Feder eines Stoßdämpfers und einer Federeinheit für eine Fahrzeugaufhängung sowie Stoßdämpfer und Federeinheit für eine Fahrzeugaufhängung, die einen solchen Hubantrieb umfasst
US9834058B2 (en) 2014-12-04 2017-12-05 Sistemi Sospensioni S.P.A. Linear actuator for adjusting the vertical position of a spring of a damper and spring unit for a vehicle suspension and damper and spring unit for a vehicle suspension comprising such an actuator
US10953717B2 (en) 2019-05-13 2021-03-23 Honda Motor Co., Ltd. Wear mitigated damper assembly for a vehicle

Also Published As

Publication number Publication date
DE102007044538A1 (de) 2009-03-12
EP2197696A1 (fr) 2010-06-23

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