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EP2641575B1 - Plate-forme élévatrice de véhicule avec dispositif de précontrainte - Google Patents

Plate-forme élévatrice de véhicule avec dispositif de précontrainte Download PDF

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Publication number
EP2641575B1
EP2641575B1 EP20130160447 EP13160447A EP2641575B1 EP 2641575 B1 EP2641575 B1 EP 2641575B1 EP 20130160447 EP20130160447 EP 20130160447 EP 13160447 A EP13160447 A EP 13160447A EP 2641575 B1 EP2641575 B1 EP 2641575B1
Authority
EP
European Patent Office
Prior art keywords
platform
vehicle lift
support
spring
support pillar
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.)
Active
Application number
EP20130160447
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German (de)
English (en)
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EP2641575A1 (fr
Inventor
Gerit Bruns
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.)
AMF Bruns GmbH and Co KG
Original Assignee
AMF Bruns GmbH and 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
Priority claimed from DE202012002832U external-priority patent/DE202012002832U1/de
Application filed by AMF Bruns GmbH and Co KG filed Critical AMF Bruns GmbH and Co KG
Publication of EP2641575A1 publication Critical patent/EP2641575A1/fr
Application granted granted Critical
Publication of EP2641575B1 publication Critical patent/EP2641575B1/fr
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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
    • A61G3/062—Transfer using ramps, lifts or the like using lifts connected to the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/04—Force
    • F04C2270/042—Force radial
    • F04C2270/0421—Controlled or regulated

Definitions

  • the invention relates to a vehicle lift for loads, in particular wheelchairs, which is at least in a first, retracted position and a second extended position, with at least one support spar, a platform which is hinged about a horizontal pivot axis pivotally mounted on the at least one support beam, and at least one lifting device articulated to the support beam for raising and lowering the support beam together with the platform.
  • Vehicle-mounted vehicle lifts have long been known. They serve to convey objects or persons from the interior of the vehicle to the outside and back, when there is a height difference or a gap must be bridged between the level of the vehicle interior and the place to which the objects or persons are to be brought.
  • An important application find such vehicle lifts in vehicles where wheelchair users are transported.
  • Such a generic vehicle lift the local applicant is, for example, in DE 203 09 868 U 1 disclosed.
  • Known vehicle lifts have a platform which is movably articulated on the at least one support beam and is moved by means of a lifting device.
  • a lifting device As a rule, at least two main positions can be distinguished. The first position is the retracted position during which the vehicle lift is not used. The platform is then usually in a vertical position, so that the entire vehicle lift has the smallest possible space and space requirements and does not bother while driving the vehicle.
  • the vehicle lift In the second position, the vehicle lift is extended and the platform is located substantially horizontally near the ground so that, for example, a wheelchair user can easily ride off the ground onto the platform.
  • an intermediate position is provided, in which the platform is approximately at the level of a vehicle interior, so that, for example, a wheelchair user can drive from the platform into the vehicle interior.
  • the platform is lowered substantially parallel to itself by means of the lifting device.
  • the platform has to be moved from the vertical to the horizontal position; on the other hand, it has to be lowered to a floor level so that, for example, wheelchair users can drive it easily.
  • the lifting devices that are used to apply sufficient power to raise even heavier loads by means of the vehicle lift, but still as small as possible, so that on the one hand, the weight and the power consumption of the vehicle lift is low.
  • a critical point here is the start when spending from the retracted to the extended position.
  • Object of the present invention is therefore to provide a vehicle lift of the type mentioned, which is improved with respect to at least one of the above problems.
  • the invention solves the problem in a vehicle lift of the type mentioned by the means of the first claim, in particular by providing a torsion bar having biasing means for biasing the vehicle lift in the second position, in the region of the articulated connection between the platform and supporting spar attacks.
  • the invention is based on the recognition that in particular the starting point when moving from the first to the second position of the vehicle lift is critical. Further, the invention is based on the recognition that it is not necessary to fully support the movement in the movement from the first to the second position, but that it is sufficient to support only a certain range. It has proven to be particularly efficient when the pretensioner engages the articulated connection between the platform and the carrier spar.
  • the biasing means which is arranged for biasing the vehicle lift in the second position, thus biases the platform so that it automatically at least at a certain pivot angle from the first position in which the platform is arranged substantially vertically, in the direction of the second Position in which the platform is arranged substantially horizontally under, is biased.
  • the platform, supported by the bias already moved a bit from the first to the second position, the rest of the movement can be done solely by the weight of the platform. Consequently, it is possible to make the pretensioner much smaller, which also reduces the weight of the vehicle lift. Furthermore, the fact that the biasing device engages in the region of the articulated connection between the platform and the carrier spar substantially simplifies the maintenance.
  • the biasing device has at least one spring element.
  • Spring elements are simple components that require no additional energy and low maintenance.
  • the at least one spring element is designed as a torsion spring.
  • a torsion spring can be used advantageously as a biasing device, since the biasing device engages in the region of the articulated connection between the platform and the carrier spar.
  • This compound is preferably as a pivotal connection designed so that the use of torsion springs is particularly preferred.
  • other tension or compression springs could be used.
  • the construction is substantially simplified when torsion springs are used.
  • Such a torsion spring is preferably designed as a leg spring. In this case, preferably attacks a first leg on the support beam and a second leg on the platform, so that the energy stored in the torsion spring can be used in the form of moments for biasing the vehicle lift in the second position.
  • the torsion spring is designed as a torsion bar. Torsion springs are less susceptible to failure than coil springs due to their significantly lower or eliminated flexing stress. As a result, maintenance intervals can be selected longer, making maintenance much easier. Furthermore torsion bar springs can save more energy than coil springs with a corresponding design in a compact design, whereby the construction is simplified and weight can be saved.
  • the torsion bar spring has a spring body and two legs extending from the spring body for introducing moments into the spring body. Through the two legs can be initiated in a simple way moments in the spring body. Special fixtures are eliminated.
  • the spring member engages a first portion with the support spar and with a second portion with the platform in engagement.
  • the first leg engages the carrier spar and the second leg engages the platform. This allows the moments to initiate particularly effectively and the pretensioner is designed to be efficient and low maintenance.
  • the spring body is arranged substantially in a plane of the platform. So a particularly space-saving arrangement is achieved.
  • the spring body extends substantially over its entire length along the platform.
  • the spring body extends substantially parallel to the pivot axis of the platform along this.
  • the Spring body arranged at the bottom of the platform.
  • the term underside refers to the side of the platform which, in the second position, preferably rests on a floor or is executed thereon.
  • the torsion spring is not applied to the area of the platform, which is traveled by, for example, a wheelchair user and thus does not bother.
  • the torsion spring is accessible in a simple manner when the vehicle lift is in the first position. As a result, on the one hand, the construction of the vehicle lift compact possible on the other hand, the maintenance is much easier.
  • the vehicle lift has two support struts, which are articulated to the platform in each case in an articulated manner
  • the pretensioning device has two spring elements.
  • a first spring element cooperates with the first carrier spar and a second spring element with the second carrier spar.
  • both spring elements are designed as torsion bar springs and extend with their spring bodies on the underside of the platform.
  • the lifting device has a parallelogram linkage with at least two substantially parallel to each other arranged support arms, which are articulated in each case with one end to the support beam and the other end to a vehicle-side attachment portion.
  • a parallelogram linkage is basically, for example, in the aforementioned DE 203 09 868 U1 discloses and can be used advantageously for moving the vehicle lift. If two supporting beams are provided, preferably two parallelogram linkages are also provided.
  • other lifting devices such as purely hydraulic, pneumatic, electrical or other mechanical lifting devices, such as various cables and the like could be used.
  • the at least one support spar and / or the support arms are formed as aluminum profiles.
  • the support beam and / or the support arms are formed as aluminum profiles, no welds or other joining process steps are necessary.
  • the spar is bent Aluminum profile formed.
  • the at least one support spar and / or the support arms are formed completely in one piece.
  • the production is much easier, on the other hand eliminates critical joints, whereby the life and safety of the vehicle lift is improved.
  • the weight of the vehicle lift is significantly reduced.
  • the visual impression of the supporting beam and thus the entire vehicle lift is significantly improved. It arises a gently curved, pleasing and sporty impression, which is caused by the integral curved construction of the supporting beam.
  • the at least one carrier beam is designed as a carrier beam which is bent in one piece, any other material, such as steel, is also preferred, even if aluminum is particularly preferred, also with regard to a weight saving.
  • a mechanism for pivoting the platform which acts on the platform.
  • the mechanism is intended to pivot the platform from the first, retracted position, in which the platform is oriented substantially vertically, to the horizontal, in which the platform is located in the second, extended position.
  • This pivoting movement is supported according to the invention in a first pivoting portion of the biasing device. Consequently, the lifting device is provided for raising and lowering, and the mechanism only for pivoting the platform.
  • this mechanism for pivoting the platform on a toggle lever with a first leg and a second leg connected thereto kniegelenkig, wherein the first leg is hinged to the support beam and the second leg to the platform.
  • a toggle is a particularly easy way to pivot the platform.
  • the knee joint on which a sliding shoe is preferably provided can come into contact with one of the support arms of the parallelogram linkage and thus pivot the platform.
  • the second leg is designed as a push rod, wherein at both ends hinge elements are arranged relative to the push rod adjustable.
  • the hinge elements wherein a hinge member forms with a part of the knee joint and the second hinge member is hinged to the platform and / or on the support, connected by means of opposing threads with the push rod.
  • the two joint elements about each other by turning the push rod to move away from each other and so relative to each other adjustable.
  • a pivot angle of the platform when moving from the first position to the second position is adjustable. Depending on the vehicle type and installation situation, this angle can vary, so that it is advantageous to make this angle adjustable in a simple manner.
  • two side plates are arranged on the platform, each having an embossment.
  • Side panels serve on the one hand for the lateral guidance of, for example, on the platform moving wheelchairs and so on the one hand increase security. On the other hand, they also serve to stabilize the platform, so that it does not bend under load.
  • the side plates are for this purpose preferably arranged substantially perpendicular to the plane formed by the platform.
  • At least one support for supporting moments against the support spar is arranged on the platform. Moments caused by loads on the platform around the hinged connection between platform and spar must be supported.
  • the support is preferably fixedly attached to the platform and has a contact portion with which it comes into contact with the carrier beam so as to support moments against it.
  • the support is preferably designed as a free-form and / or cast part. This also reduces the weight of the vehicle lift.
  • the support is intended to limit a pivoting movement of the platform relative to the support beam by a stop formed on the support comes into contact with the support beam, wherein the force is introduced into the support beam in a central region of the support beam, preferably substantially centered a direction perpendicular to the longitudinal axis of the support beam takes place.
  • the introduction of force takes place in the region of a spine of the carrier beam, which is substantially U-shaped in cross-section, preferably between the two legs of the U-shaped carrier spar and not on one of the legs.
  • a Tordieren the support beam avoided.
  • the stop of the support is preferably formed on a projection which extends from the platform arm-shaped in the direction of the supporting beam.
  • a reinforcing profile for cooperation with the stop of the support is arranged on the carrier beam.
  • the support rail is formed of aluminum.
  • Aluminum is a lightweight material with a low density. Due to these properties, impact and abrasion stresses can sometimes lead to faster wear. Therefore, this reinforcement profile is preferably arranged on the support beam to protect the material.
  • the reinforcing profile can be arranged internally, for example, in the U-shaped region of the supporting beam.
  • the reinforcing profile is connected by means of a screw connection with the carrier spar.
  • the reinforcing profile is preferably provided as a wearing part. Thus, in the case of wear alone, replace the reinforcing profile, while the spar remains intact.
  • the reinforcing profile is also preferably made of aluminum.
  • the reinforcing profile is made of another metal or plastic material.
  • a vehicle lift 1 is shown in perspective in a position referred to above as an intermediate position.
  • two mutually mirror-symmetrical stand 4, 4 ' are fixed.
  • the bottom plate 2 and the stand 4, 4 ' together form a vehicle-side holding section.
  • a lifting device 6, 6' is arranged, which is formed according to this embodiment as a parallelogram linkage.
  • a support beam 10, 10 ' is at the opposite end of the uprights 4, 4'.
  • the support beam 10, 10 ' has an upper portion 12, 12' and a lower portion 14, 14 '.
  • a platform 16 pivotally connected by a shaft 19 about the pivot axis 18.
  • a biasing device 100 is provided which engages in the region of the articulated connection between the platform 16 and supporting bars 10, 10 '.
  • the biasing device 100 is below, in particular with respect to the FIGS. 4 to 9 explained in more detail.
  • the support beam 10, 10 ' is in one piece and formed in the upper portion 12, 12 'bent along its longitudinal axis.
  • the support beam 10, 10 ' is formed as an aluminum profile with a substantially U-shaped cross-section.
  • the lifting device 6, 6 ' (see FIG. 2 ) is designed as a parallelogram linkage. It has a first support arm 24 and a second support arm 26 arranged parallel thereto. Both support arms 24, 26 are connected to both the stator 4, and with the support beam 10 by means of the articulation points 30, 31, 32, 33 articulated. All articulation points 30, 31, 32, 33 are formed as pin connectors, wherein at the articulation points 32, 33, which are arranged in the support beam 10, in addition not shown bushes are introduced into the holes on the support beam 10 to wear on the support beam 10 to prevent.
  • the two support arms 24, 26 are the same length and formed substantially identical.
  • the articulation points 30, 31 on the stand 4 are selected such that the support arms 24, 26 forming the parallelogram can be brought into a first retracted position, in which the two support arms 24, 26 are arranged substantially vertically (cf. FIG. 4 ) and in a (not shown here) second position in which the support arms 24, 26 are arranged substantially horizontally.
  • the articulation points 32, 33 on the support beam 10 are arranged correspondingly offset so as to allow the parallelogram of the lifting device 6.
  • the upper portion 12 of the support beam 10 is formed bent so that the offset between the articulation points 32 and 33 is compensated.
  • the lower portion 14 of the support beam 10 is formed substantially straight. This enables a compact design that also saves weight.
  • a hydraulic cylinder 28 is provided for driving the lifting device 6.
  • the hydraulic cylinder 28 is arranged diagonally in the parallelogram formed by the support arms 24, 26.
  • the hydraulic cylinder 28 is connected on the one hand to the articulation point 30 and on the other hand to the articulation point 33.
  • a mechanism 34 for pivoting the platform 16 is arranged on the vehicle lift 1.
  • the mechanism 34 has a first leg 38, which is articulated to the carrier spar 10 and a second leg 36, which by means of a hinge 40 is connected to the first leg 38.
  • a slide shoe 37 is further arranged.
  • the other end of the second leg 36 cooperates with the platform 16.
  • a support 42 for supporting moments against the carrier spar 10 is arranged on the platform 16.
  • the second leg 36 engages by being connected by means of a hinge 44 with this articulated.
  • FIG. 2 As can be seen, the slide shoe 37 comes into contact with the second support arm 26 when the vehicle lift is moved to the first retracted position. In this case, a force acting on the second leg 36 on the support 42 and so on the platform 16, that it is pivoted about the pivot axis 18 around in the vertical. On the other hand, when extending the vehicle lift 1, the shoe 37 loses from a certain extension point (for example, from the intermediate position as in FIG.
  • an arm-shaped projection 48 is arranged on the support 42, which serves as a stop and a pivotal movement of the platform 16 relative to the support beam 10 limited by the projection 48 comes into contact with a reinforcing profile 50 (see FIG. 3 ).
  • a screw 49 is arranged on the projection 48, which serves as an adjustable stop.
  • the reinforcing profile 50 is screwed by means of two screw 51, 52 with the support beam 10.
  • the shaft 19 which defines the pivot axis 18 is also received in the reinforcing profile 50 and firmly clamped in this with a clamping 54.
  • the shaft 19 has a flattened region, so that the reinforcing profile 50 can engage in a positive engagement therewith.
  • the first leg 38 of the mechanism 34 extends through the support spar 10, beyond the pivot bearing 45 addition.
  • the support spar 10 also extending portion 39 of the handle 22 is attached. So this is when moving from the first to the second or from the second to the first position of the vehicle lift 1 automatically with movable and is pivoted in the first position vertically upwards.
  • the handle 22 By the handle 22, the in FIG. 3 has curved shape shown, this fits essentially to the curved Section 12 of the support beam 10 at. As a result, the vehicle lift 1 is particularly space-saving.
  • FIG. 4 which illustrates the first position of the vehicle lift 1
  • a side plate 60 is additionally arranged laterally on the lifting device 6. This serves on the one hand to reduce a risk of injury by preventing, for example, operators with fingers between the support arms 24, 26 advised.
  • the side plate 60 has optical reasons. For illustration purposes it is related to FIG. 4 left carrier spar 10 'omitted, so that the support arms 24', 26 'are visible. Only the right support beam 10 is shown.
  • the biasing means 100 comprises two symmetrically formed torsion bar springs 102, 102 '(in FIG Fig. 5 only one shown), each extending at the bottom of the platform 16 (see in particular Fig. 6 ).
  • the biasing device 100 is provided to pivot the connection between the platform 16 and the support bars 10, 10 'about the pivot axis 18 in the in Fig. 5 to bias shown second position.
  • Each torsion bar spring 102, 102 ' has a spring body 106, 106 'and two of the spring body 106, 106' extending leg 104, 104 ', 108, 108' on.
  • the torsion bar springs 102, 102 ' are disposed on the underside of the platform 116 so as to occupy approximately half the width of the platform 16, respectively.
  • the first leg 104, 104 ' cooperates with the platform 16 for pretensioning with the carrier spar 10, 10' and the second leg 108, 108 '.
  • each support 42, 42 ' has a through hole 41, 41', through which the first leg 104, 104 'of the torsion bar spring 102, 102' extends, so as to engage with the stop 11, 11 'of the support bars 10, 10' in FIG To come in contact.
  • the at the opposite end of the spring body 106, 106 'formed second leg 108, 108' of the torsion bar spring 102, 102 ' is fixedly connected to the platform 16.
  • the first leg 104, 104 'of the torsion bar spring 102, 102' is not fixed to the stop 11, 11 'on the supporting bars 10, 10' is connected, but is supported only against this, it is possible that the legs 104, 104 'starting from a certain pivoting angle of the platform 16 relative to the supporting bars 10, 10' the contact with the stop 11, 11 'loses and thus exerts no force on this.
  • the platform 16 is biased.
  • the torsion bar spring 102, 102 ' has a relatively short spring travel. This simplifies the construction.
  • the torsion bars are 102, 102 'by means of two mounting plates 112, 114 (of which in Fig. 6 only two are shown; the two mounting plates of the torsion bar spring 102 'are omitted for illustrative purposes) partially covered.
  • the mounting plates 112, 114 are by means of screws 116 (in Fig. 6 only one provided with reference numerals) attached to the platform 16.
  • the mounting plates 112, 114 serve on the one hand to protect the torsion springs 102, 102 'from damage, such as by impact or abrasion on a floor.
  • the mounting plates 112, 114 also protect a user from injury.
  • the vehicle lift 1 is preferably to spend in the intermediate position in which the platform 16 is oriented horizontally, but is not located on the ground but in vehicle level. Alternatively, the vehicle lift 1 is to be spent in any other position in which the torsion bar spring 102, 102 'is relieved, ie in which the first leg 104, 104' is not in contact with the stop 11, 11 '. Subsequently, first the mounting plates 112, 114 are to be removed. Thereafter, the clamp holder 110, 110 'can be opened, so that the second leg 108, 108' is released.
  • the torsion bar spring 102, 102 'to take out, wherein the first leg 104, 104' through the through hole 41, 41 'of the support 42, 42' is to be guided.
  • the torsion bar spring 102, 102 ' may be formed of a simple spring steel.
  • the torsion bar spring has a diameter of 5 to 15 mm, particularly preferably 8 mm. This is a strength that can cause sufficient spring force to bias the vehicle lift 1 to the second position.
  • the spring body 106, 106 ' is formed substantially as an elongated, straight rod and has no bends or the like.
  • the spring body 106, 106 ' has a length of about 350 to 400 mm.
  • the second leg 108, 108 ' is also substantially formed as a straight rod and preferably has an angle of about 90 ° to the spring body 106, 106'.
  • the torsion bar spring 102, 102 'on the one hand easy to install, on the other hand can be so advantageous moments in the torsion bar spring 102, 102' bring.
  • the first leg 104, 104 ' substantially three sections 118, 118', 120, 120 ', 122, 122' (see Fig. 7c . 9 ) on.
  • the three sections 118, 118 ', 120, 120', 122, 122 ' together form an approximately circular arc-shaped leg 104, 104'.
  • the leg 104, 104 ' By bending the first leg 104, 104 'in such a segmented manner, the spring travel and thus also the introduction of force into the torsion bar spring 102, 102' or the pretensioning in the platform 16 relative to the support bars 10, 10 'are adjustable.
  • the leg 104, 104 ' preferably also approximately at an angle of 90 ° to the spring body 106, 106'.
  • the first portion 118, 118 'of the first leg 104, 104' preferably has an angle of 90 to 100 ° to the second leg 108, 108 '.
  • the individual sections 118, 118 ', 120, 120', 122, 122 'of the first leg 104, 104' preferably have approximately an angle of 140 to 150 ° to each other.
  • the lengths of the individual sections 118, 118 ', 120, 120', 122, 122 ' are selected so that the torsion bar spring 102, 102' with the section 122, 122 'with the stop 11, 11' of the supporting beam 10, 10 ' comes into contact.
  • the support 42 is shown.
  • the support 42 has a base body 43 and extending from this arm-shaped projection 48 which serves as a stop. By means of the base body 43, the support 42 can be screwed against the platform 16.
  • a through hole 44a is provided for receiving the articulated connection 44 (see. Fig. 3 ).
  • the support 42 is made as a freeform casting. As a result, this weight is optimized, so that the weight of the vehicle lift is reduced.

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  • 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 Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Claims (11)

  1. Elévateur de véhicule (1) pour des charges, en particulier des fauteuils roulants, lequel peut être amené au moins dans une première position rentrée et dans une deuxième position déployée, comprenant
    au moins un longeron porteur (10, 10'),
    une plate-forme (16), qui est articulée au niveau de l'au moins un longeron porteur (10, 10') de manière à pouvoir pivoter autour d'un axe de pivotement (18) horizontal, et
    au moins un système de levage (6, 6'), relié de manière articulée au longeron porteur (10, 10'), servant à soulever et à abaisser le longeron porteur (10, 10') conjointement avec la plate-forme (16),
    sachant que le système de levage (6, 6') présente au moins une tringlerie en parallélogramme reliée de manière articulée au longeron porteur (10, 10') servant à soulever et à abaisser le longeron porteur (10, 10') conjointement avec la plate-forme (16) essentiellement de manière perpendiculaire par rapport à l'axe de pivotement (18), laquelle tringlerie présente au moins deux bras porteurs (24, 26) disposés essentiellement de manière parallèle l'un par rapport à l'autre, lesquels sont articulés respectivement par une extrémité au niveau du longeron porteur (10, 10') et par l'autre extrémité au niveau d'une section de fixation (2, 4, 4') côté véhicule,
    sachant qu'un dispositif de précontrainte (100) présentant au moins un élément de ressort (102, 102'), servant à précontraindre l'élévateur de véhicule (1) dans la deuxième position vient en prise dans la zone de l'assemblage articulé entre la plate-forme (16) et le longeron porteur (10, 10'),
    caractérisé en ce que l'au moins un élément de ressort est réalisé sous la forme d'un ressort à barre de torsion (102, 102').
  2. Elévateur de véhicule selon la revendication 1,
    caractérisé en ce que le ressort à barre de torsion (102, 102') présente un corps de ressort (106, 106') ainsi que deux branches (104, 104', 108, 108') s'étendant depuis le corps de ressort (106, 106') et servant à imprimer des couples dans le corps de ressort (106, 106').
  3. Elévateur de véhicule selon l'une quelconque des revendications 1 et 2,
    caractérisé en ce que le ressort à barre de torsion (102, 102') se trouve en prise par une première section avec le longeron porteur (10, 10') et se trouve en prise par une deuxième section avec la plate-forme (16).
  4. Elévateur de véhicule selon l'une quelconque des revendications 2 et 3,
    caractérisé en ce que le corps de ressort (106, 106') est disposé essentiellement dans un plan de la plate-forme (16).
  5. Elévateur de véhicule selon l'une quelconque des revendications 2 à 4,
    caractérisé en ce que le corps de ressort (106, 106') s'étend essentiellement sur toute sa longueur le long de la plate-forme (16).
  6. Elévateur de véhicule selon l'une quelconque des revendications 2 à 5,
    caractérisé en ce que le corps de ressort (106, 106') s'étend essentiellement de manière parallèle à l'axe de pivotement (18) de la plate-forme (16) le long de cette dernière.
  7. Elévateur de véhicule selon l'une quelconque des revendications 2 à 6,
    caractérisé en ce que le corps de ressort (106, 106') est disposé au niveau d'un côté inférieur de la plate-forme (16).
  8. Elévateur de véhicule selon l'une quelconque des revendications précédentes,
    caractérisé en ce que l'élévateur de véhicule (1) présente deux longerons porteurs (10, 10'), qui sont articulés respectivement de manière articulée au niveau de la plate-forme (16), et en ce que le dispositif de précontrainte (100) présente deux ressorts à barre de torsion (102, 102').
  9. Elévateur de véhicule selon l'une quelconque des revendications précédentes,
    caractérisé en ce que l'au moins un longeron porteur (10, 10') et/ou les bras porteurs (24, 26) sont réalisés sous la forme de profilés en aluminium.
  10. Elévateur de véhicule selon l'une quelconque des revendications précédentes,
    caractérisé par un mécanisme (34) servant à faire pivoter la plate-forme (16), lequel présente un levier coudé pourvu d'une première branche (38) et d'une deuxième branche (36) reliée à celle-ci de manière articulée coudée, sachant que la première branche (38) est articulée au niveau du longeron porteur (10, 10') et que la deuxième branche (36) est articulée au niveau de la plate-forme (16).
  11. Elévateur de véhicule selon l'une quelconque des revendications précédentes,
    caractérisé par deux tôles latérales (20, 20') disposées au niveau de la plate-forme (16), lesquelles présentent un estampage (21).
EP20130160447 2012-03-21 2013-03-21 Plate-forme élévatrice de véhicule avec dispositif de précontrainte Active EP2641575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012002832U DE202012002832U1 (de) 2012-03-21 2012-03-21 Fahrzeuglift mit Vorspanneinrichtung
US13/538,243 US9375369B2 (en) 2012-03-21 2012-06-29 Vehicle lift with biasing device

Publications (2)

Publication Number Publication Date
EP2641575A1 EP2641575A1 (fr) 2013-09-25
EP2641575B1 true EP2641575B1 (fr) 2015-05-13

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ID=47901875

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Application Number Title Priority Date Filing Date
EP20130160447 Active EP2641575B1 (fr) 2012-03-21 2013-03-21 Plate-forme élévatrice de véhicule avec dispositif de précontrainte

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899089A (en) * 1959-08-11 ajero
US4534450A (en) * 1984-04-30 1985-08-13 Pierre Savaria Invalid lift
EP0955029A2 (fr) * 1998-05-01 1999-11-10 The Braun Corporation Dispositif intégré à double fonction, barrière/panneau de jonction, pour élévateur de fauteuil roulant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8328858U1 (de) * 1983-10-06 1984-01-05 Wilhelm Stoll Maschinenfabrik Gmbh, 3325 Lengede Ladebordwand
US5234311A (en) * 1991-07-17 1993-08-10 Ricon Corporation Wheelchair lift with adjustable posts
US5806632A (en) * 1997-03-26 1998-09-15 The Braun Corporation Spring assist system for gravity deployment of stowed platform wheelchair lifter
EP1369299A1 (fr) * 2002-06-05 2003-12-10 Gerd Bär Hayon élévateur avec plate-forme assiste par un ressort
DE20309868U1 (de) 2003-06-25 2004-11-04 Apener Maschinenbau und Förderanlagen Gustav Bruns GmbH & Co KG Fahrzeuglift für Lasten, insbesondere für Rollstühle
GB2480489B (en) * 2010-05-20 2012-10-10 Ratcliff Palfinger Ltd Tail lift for a vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899089A (en) * 1959-08-11 ajero
US4534450A (en) * 1984-04-30 1985-08-13 Pierre Savaria Invalid lift
EP0955029A2 (fr) * 1998-05-01 1999-11-10 The Braun Corporation Dispositif intégré à double fonction, barrière/panneau de jonction, pour élévateur de fauteuil roulant

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