EP0319436A1 - Vorrichtung zur Senkung der Fahrzeugrückseite bis zum Boden - Google Patents

Vorrichtung zur Senkung der Fahrzeugrückseite bis zum Boden Download PDF

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Publication number
EP0319436A1
EP0319436A1 EP88420398A EP88420398A EP0319436A1 EP 0319436 A1 EP0319436 A1 EP 0319436A1 EP 88420398 A EP88420398 A EP 88420398A EP 88420398 A EP88420398 A EP 88420398A EP 0319436 A1 EP0319436 A1 EP 0319436A1
Authority
EP
European Patent Office
Prior art keywords
arm
axis
axle
arms
rod
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.)
Granted
Application number
EP88420398A
Other languages
English (en)
French (fr)
Other versions
EP0319436B1 (de
Inventor
Dominique Guinamard
André Pourchon
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.)
INDUSTRIELLE DE PREFABRICATION ELECTRIQUE SIPREL Ste
Original Assignee
INDUSTRIELLE DE PREFABRICATION ELECTRIQUE SIPREL Ste
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 INDUSTRIELLE DE PREFABRICATION ELECTRIQUE SIPREL Ste filed Critical INDUSTRIELLE DE PREFABRICATION ELECTRIQUE SIPREL Ste
Priority to AT88420398T priority Critical patent/ATE71509T1/de
Publication of EP0319436A1 publication Critical patent/EP0319436A1/de
Application granted granted Critical
Publication of EP0319436B1 publication Critical patent/EP0319436B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • A61G3/06—Transfer using ramps, lifts or the like
    • A61G3/065—Transfer using ramps, lifts or the like using an adjustable suspension lowering device for the whole vehicle

Definitions

  • the present invention relates to a device for lowering the rear of a road vehicle to bring it to ground level, and more specifically a device for equipping a front-wheel drive vehicle and comprising a rigid rear axle with suspension. with blades.
  • the vehicles in question are more specifically small utility vehicles used as vans for the transport of goods or as small public transport vehicles. Such vehicles are very often fitted out for the transport of disabled people using wheelchairs, which requires specific arrangements to allow loading and unloading of the wheelchairs and their occupants.
  • the device comprises, at each end of the rear axle, a substantially vertical beam, the lower end of which is fixed to the axle, and in which is mounted, with the interposition of a bearing, a through shaft the beam, oriented parallel to the axle, at the outer end of which is fixed a first arm on which is mounted the spindle and hub assembly of a wheel and, at the inner end of which is fixed a second arm equipped with locking means in the road position, support means on the chassis in the lowered position from the rear of the vehicle and on which the end of the rod of a jack is articulated, the body of which is articulated near the end high of the beam, the shaft carrying the two arms and the axis of articulation of the jack on the second arm being offset longitudinally relative to the axis of the wheel.
  • the second arm When the vehicle is in the road position, the second arm is locked relative to the vertical beam, so that neither the two arms nor the shaft on which they are fixed can pivot relative to the axis of the wheel .
  • the second arm is unlocked first, which, taking into account the longitudinal offset of the shaft carrying the two arms relative to the axis of the wheel, a lowering of the rear of the vehicle under the action of its sole weight, until the stop means with which the second arm is fitted come to bear on the chassis.
  • the jack is supplied in a direction of exit from its rod, which ensures pivoting of all of the arms by rotation about the axis of the wheel in a direction of lowering of the rear of the vehicle, by compression of the suspension, with simultaneous pivoting of the bearing shaft.
  • the axis of the wheel, the shaft carrying the two arms and the axis of articulation of the jack rod on the second arm are substantially aligned, the shaft carrying the two arms being disposed between the two other axes. .
  • the locking means of the second arm are formed in combination by a hook-shaped recess formed in the second arm and open on the side of the axis of articulation of the rod of the jack, and by a finger with an axis parallel to that of the axle, secured to a bolt pivotally mounted on the beam around an axis also parallel to the axis of the axle.
  • the means for controlling the lock consist of a hydraulic cylinder ensuring the pivoting of the lock around its axis in a direction of release of the locking finger out of the recess of the second arm.
  • the means for supporting the second arm on the chassis consist of a roller mounted on the second arm, with an axis parallel to the axle, disposed behind the axis of the cylinder rod in a direction of rotation of the arms corresponding to an output of the cylinder rod.
  • the edge of the second arm, located behind the hook-shaped recess, in a direction of rotation of the arms corresponding to the outlet of the jack rod has a convex profile in the shape of a cam. This profile allows, when the vehicle chassis is mounted, the second arm to bear on the locking finger and to guide the latter until it falls into the hook-shaped recess.
  • the hydraulic circuit supplying the jack is fitted with a non-return valve preventing the escape of fluid from the upper chamber of the jack when the vehicle chassis is in position. low.
  • each beam is equipped with a stopper made of a flexible and damping material such as rubber, on which the second arm is supported when the vehicle is in the road position.
  • This stop is normally compressed by the second arm to cancel all games and resume the weight of the wheel considered when it passes through a hole.
  • the device shown in the drawing, comprises a rigid axle 2, one end of which is shown, associated with suspension blades 3. At the illustrated end of the axle 2 is fixed rigidly a beam 4 substantially vertical. This beam 4 is crossed with the interposition of a bearing 5 by a shaft 6 at one end of which is fixed a first arm 7 and at the other end of which is fixed a second arm 8. The first arm is therefore located on the side of the outside of the vehicle with respect to the beam 4, while the second arm is located on the side of the interior of the vehicle with respect to the beam 4.
  • the first arm carries, in known manner, a spindle and hub assembly 9 on which is mounted a wheel 10.
  • the second arm is equipped with the hinge pin 12 of the end of the rod 13 of a double-acting hydraulic jack whose body 14 is articulated around an axis 15 on a part 16 in the form of a bracket fixed to the upper end of the vertical beam 4.
  • axis 17 of the vehicle wheel, the axis of the shaft 6 and the axis 12 of articulation of the end of the jack rod are substantially aligned.
  • the second arm is also equipped with a roller 18 with an axis parallel to the axis of the axle intended, during the movement of the two arms, to come to bear on the chassis 19 of the vehicle.
  • the second arm 8 also has a hook-shaped recess 20 intended, in the road position of the vehicle, for the engagement of a finger 22, parallel to the axle 2, of a latch 23 mounted pivotally about an axis 24 parallel to the axle.
  • the latch 23 can be rotated in an unlocking direction, that is to say in the clockwise direction under the action of a hydraulic cylinder not shown in the drawing.
  • the vehicle finally comprises traditional shock absorbers 27 not belonging to the object of the invention.
  • the jack 14 is then actuated in a direction of exit from the rod 13 to ensure the continuation of the pivoting movement of the arms 7 and 8, this movement being made possible by compression of the suspension .
  • the wheels are then retracted until the rear of the chassis lands on the ground, as shown in Figure 4, with maintenance, in this position, by means of a non-return valve inserted in the hydraulic circuit of cylinder supply.
  • the invention brings a great improvement to the existing technique, by providing a device allowing the lowering of the rear of a vehicle equipped with a rigid axle with leaf suspension, which is entirely integral with the rigid axle and which does not change the characteristics of mechanical stresses.
  • the invention is not limited to the sole embodiment of this device, described above, by way of example; on the contrary, it embraces all of its variant embodiments.
  • the lock control means could be different and constituted for example by an electromagnet or a mechanical control.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Harvester Elements (AREA)
  • Soil Working Implements (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
EP88420398A 1987-11-30 1988-11-29 Vorrichtung zur Senkung der Fahrzeugrückseite bis zum Boden Expired - Lifetime EP0319436B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88420398T ATE71509T1 (de) 1987-11-30 1988-11-29 Vorrichtung zur senkung der fahrzeugrueckseite bis zum boden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8716927 1987-11-30
FR8716927A FR2623755B1 (fr) 1987-11-30 1987-11-30 Dispositif permettant d'abaisser l'arriere d'un vehicule routier pour l'amener au niveau du sol

Publications (2)

Publication Number Publication Date
EP0319436A1 true EP0319436A1 (de) 1989-06-07
EP0319436B1 EP0319436B1 (de) 1992-01-15

Family

ID=9357524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88420398A Expired - Lifetime EP0319436B1 (de) 1987-11-30 1988-11-29 Vorrichtung zur Senkung der Fahrzeugrückseite bis zum Boden

Country Status (7)

Country Link
US (1) US4886290A (de)
EP (1) EP0319436B1 (de)
JP (1) JPH06104406B2 (de)
AT (1) ATE71509T1 (de)
DE (1) DE3867819D1 (de)
ES (1) ES2029066T3 (de)
FR (1) FR2623755B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003059662A1 (fr) 2002-01-15 2003-07-24 Bernard Saugy Vehicule routier electrique, notamment automatique
FR3036337A1 (fr) * 2015-05-22 2016-11-25 Soc Ind De Prefabrication Electrique Siprel Dispositif d'abaissement de la caisse d'un vehicule comportant un moyen de detection de la position haute

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8900673U1 (de) * 1989-01-23 1990-06-07 Moog, Alfons, 7774 Deggenhausertal Fahrzeug mit einem druckmittelgefederten Achsaggregat
US5398952A (en) * 1993-02-02 1995-03-21 Wagner; Charles E. Liftable amusement ride carrier
FR2716841B1 (fr) * 1994-03-02 1996-04-05 Siprel Dispositif permettant d'abaisser l'arrière d'un véhicule pour l'amener près du sol.
US5863049A (en) * 1997-03-13 1999-01-26 Mahvi; A. Pascal Retractable and extendable wheel assembly
GB0110638D0 (en) * 2001-05-01 2001-06-20 Covelink Marine Ltd Vehicle with retractable wheel
US7547044B2 (en) * 2007-01-30 2009-06-16 Cokeley Donald E Anti-rollover device for trailers and mobile homes
US7918465B2 (en) * 2008-09-16 2011-04-05 Metzger Donald C Adjustable height trailer
CA3012289C (en) 2016-01-27 2022-01-25 EM Solutions Incorporated System for raising and lowering vehicle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817819A (en) * 1956-10-09 1959-08-06 Ibbett Engineering Company Ltd Motor road vehicles constructed to facilitate loading and unloading
US3340791A (en) * 1966-02-25 1967-09-12 Int Machinery Corp Sa Hydrostatic cooker with horizontal processing chamber
GB1092970A (en) * 1965-11-10 1967-11-29 Bucher Guyer Ag Masch Improvements in or relating to trailers
FR2297152A1 (fr) * 1975-01-09 1976-08-06 Lebihan Joseph Vehicule utilitaire dont on peut rabaisser l'arriere
US4595210A (en) * 1985-02-11 1986-06-17 Groeing Robert E Fruit bin trailer
FR2597801A1 (fr) * 1986-04-29 1987-10-30 Somac Montage Auto Camions Sar Vehicule a systeme de suspension reglable pour faciliter l'acces a un fauteuil roulant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001796A (en) * 1959-10-08 1961-09-26 Gerstenslager Company Retractable trailer undercarriage
GB1130954A (en) * 1966-03-23 1968-10-16 Kenneth Geoffrey Moss Improvements in vehicle wheel mounting to facilitate loading
US3831210A (en) * 1973-08-15 1974-08-27 G Ow Retractable wheel assembly
GB1551769A (en) * 1977-05-25 1979-08-30 South Yorkshire Passenger Tran Passenger carrying vehicles
DE3302998C2 (de) * 1983-01-29 1986-09-25 Eisenwerke Kaiserslautern Göppner GmbH, 6750 Kaiserslautern Radaufhängung für in den Fahrzeugkörper einschwenkbare Räder bzw. Radachsen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817819A (en) * 1956-10-09 1959-08-06 Ibbett Engineering Company Ltd Motor road vehicles constructed to facilitate loading and unloading
GB1092970A (en) * 1965-11-10 1967-11-29 Bucher Guyer Ag Masch Improvements in or relating to trailers
US3340791A (en) * 1966-02-25 1967-09-12 Int Machinery Corp Sa Hydrostatic cooker with horizontal processing chamber
FR2297152A1 (fr) * 1975-01-09 1976-08-06 Lebihan Joseph Vehicule utilitaire dont on peut rabaisser l'arriere
US4595210A (en) * 1985-02-11 1986-06-17 Groeing Robert E Fruit bin trailer
FR2597801A1 (fr) * 1986-04-29 1987-10-30 Somac Montage Auto Camions Sar Vehicule a systeme de suspension reglable pour faciliter l'acces a un fauteuil roulant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003059662A1 (fr) 2002-01-15 2003-07-24 Bernard Saugy Vehicule routier electrique, notamment automatique
FR3036337A1 (fr) * 2015-05-22 2016-11-25 Soc Ind De Prefabrication Electrique Siprel Dispositif d'abaissement de la caisse d'un vehicule comportant un moyen de detection de la position haute

Also Published As

Publication number Publication date
EP0319436B1 (de) 1992-01-15
DE3867819D1 (de) 1992-02-27
FR2623755A1 (fr) 1989-06-02
ES2029066T3 (es) 1992-07-16
US4886290A (en) 1989-12-12
JPH06104406B2 (ja) 1994-12-21
ATE71509T1 (de) 1992-02-15
JPH01195108A (ja) 1989-08-07
FR2623755B1 (fr) 1990-05-04

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