EP0332758A1 - Elévateur pour véhicules automobiles - Google Patents

Elévateur pour véhicules automobiles Download PDF

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Publication number
EP0332758A1
EP0332758A1 EP88121283A EP88121283A EP0332758A1 EP 0332758 A1 EP0332758 A1 EP 0332758A1 EP 88121283 A EP88121283 A EP 88121283A EP 88121283 A EP88121283 A EP 88121283A EP 0332758 A1 EP0332758 A1 EP 0332758A1
Authority
EP
European Patent Office
Prior art keywords
entry
motor vehicle
lifting platform
adjustable
support
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Withdrawn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
EP88121283A
Other languages
German (de)
English (en)
Inventor
Georg Bollig
Gerhard Fuchs
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.)
Zippo Gesellschaft fur Hebetechnik Mbh
Original Assignee
Zippo Gesellschaft fur Hebetechnik Mbh
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 Zippo Gesellschaft fur Hebetechnik Mbh filed Critical Zippo Gesellschaft fur Hebetechnik Mbh
Publication of EP0332758A1 publication Critical patent/EP0332758A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars

Definitions

  • the invention relates to a lifting platform preferably for motor vehicles in a 2-column or 2-piston construction, each with two supporting arms connected to the columns or stamps in a height-adjustable manner, which are adjustable in a horizontal plane and can be brought out of the drive-in area of the lifting platform in the rest position and have support surfaces ,
  • the support surfaces can be positioned by means of the approximately horizontally adjustable support arms for lifting a motor vehicle under the mounting points on the underside of the motor vehicle.
  • Lifting platforms of this type are already known in various designs. So you already know a 2-post lift that has height-adjustable and equipped with swivel arms on each of its columns, the swivel arms are telescopic and can be pivoted and extended in a horizontal plane (see. DE-AS 18 16 919). By pivoting and adjusting the swivel arms, they can be positioned under a motor vehicle in such a way that the contact surfaces seated on the free ends of the swivel arms are below the mounting points provided and recommended by the motor vehicle manufacturer. Although this previously known lifting platform can be adjusted to many different motor vehicles by the manual adjustability of its swivel arms Types are adapted, but the operator becomes dirty when adjusting and positioning the swivel arms over time on body and clothing.
  • Two-post or 4-post lifts are also already known, for example, in which a motor vehicle can drive onto a ramp-like rail on both sides before it is raised.
  • These known lifts are relatively easy to use and can accommodate a variety of types of motor vehicles.
  • various inspections or repairs for example on the wheels or wheel axles, are not possible since the raised motor vehicle also bears on the ramps with its wheels and these at least partially cover a large part of the underside of the motor vehicle.
  • especially inexperienced drivers are reluctant to drive onto ramps or such ramp-like ramps.
  • the solution according to the invention of this at least partially apparently contradictory task consists in particular in that the support arms have an adjustment drive and that a control for the adjustment drives is provided for positioning the support surfaces.
  • the lifting platform according to the invention which has support arms which can be adjusted by means of an adjustment drive and can be positioned via a control, does not have to be cumbersome and time-consuming, but can be adjusted automatically, cleanly and simply by the operator to the particular motor vehicle.
  • the support arms which can be adjusted in a horizontal plane via the adjustment drive, make it possible to dispense with the ramp-like ramps and platforms which, for example, are experienced as uncomfortable by drivers. For example, when accepting repairs, the customer can drive his car into the drive-in area of the lift himself.
  • the support arms can also be moved into a position of rest outside the entry area by means of the adjustment drives position can be brought, the drive-in area of such a lift can be made flat and without trip hazards.
  • the support arms do not cover essential parts on the underside of the motor vehicle, but also allow unimpeded access to the wheels or wheel axles. By controlling the adjustment drives, the support arms can be adapted to a wide range of motor vehicles and positioned below them.
  • a lifting platform for motor vehicles which has rail-like wheel supports on its at least four columns arranged in pairs and in which at least two columns arranged opposite one another are provided with a longitudinally acting displacement device for adapting to the vehicle center distances (see DE-OS 28 12 971).
  • this previously known lifting platform should be practically universally usable for different vehicle lengths.
  • this lift also has the disadvantage that a significant part of the underside of the motor vehicle is not freely accessible due to its wheel supports, and various inspections and repairs cannot be carried out because of the wheels bearing on the wheel supports.
  • a not inconsiderable design effort is necessary in order to ensure sufficient stability of the entire lifting platform despite the pairs of columns that can be moved in the longitudinal direction.
  • this lift takes up a lot of space.
  • the wheel supports can often only be adapted with difficulty and insecurity to a motor vehicle that is already resting on them.
  • the wheelbase must be roughly estimated before starting a motor vehicle, which may be difficult for an inexperienced person. This well-known lift is therefore less suitable, for example, for the acceptance area of a motor vehicle workshop.
  • a height-adjustable support arm is connected to each of the columns or punches, which is arranged approximately transversely to the direction of entry of a motor vehicle to be lifted and on its horizontal and engages another support arm, which is adjustable transversely to the direction of entry, which is arranged approximately parallel to the direction of entry and approximately horizontally adjustable in the direction of entry, and which has the contact surfaces in the region of its ends.
  • the two support arms which are arranged on one of the columns or punches and can be adjusted in a horizontal plane in a cross slide manner, are expediently arranged at right angles to one another.
  • the support arm arranged in the retracting direction is connected to one of the columns or punches via a further support arm. While the support arm, which is arranged transversely to the entry direction, moves the other support arm together with its support surfaces under the motor vehicle, the support surfaces arranged at its ends below the motor vehicle underside can be aligned via the other support arm according to the mounting points recommended by the manufacturer.
  • the alignment and positioning of the support arms connected to one another in a cross slide is therefore practically carried out in an X and a Y direction, the X and Y directions being arranged at right angles to one another as far as possible in order to achieve a linear and thus as simple as possible control .
  • a simple and advantageous embodiment of the invention can consist in that the lifting columns have a height-adjustable lifting element, with which a support arm is rigidly connected, possibly via a connecting element, which is arranged approximately transversely to the direction of entry of a motor vehicle to be lifted and at its end which is adjustable horizontally and approximately transversely to the direction of entry and points towards the entry area attacks another support arm which is arranged approximately parallel to the direction of entry and approximately horizontally adjustable in the direction of entry and which has the bearing surfaces at its ends.
  • the support arms are each formed from two tubes, an inner tube being movably guided in an outer tube and being connected in a rotationally fixed manner to a spindle nut into which one connected to the preferably electromechanical adjustment drive and engages the adjustment movements of the support arms causing spindle.
  • a spindle-nut drive allows the most exact possible alignment and positioning of the support surfaces attached to one of the support arms under the mounting points of a motor vehicle.
  • both ends of the support arm arranged parallel to the direction of entry are each horizontally and approximately adjustable in the direction of entry, each having a support surface. Due to the horizontal adjustability of both ends of the support arm arranged in the retraction direction of a motor vehicle to be lifted, a good positioning of the support surfaces on the underside of the motor vehicle is possible.
  • an embodiment is preferred in which one of the two ends of the support arm arranged parallel to the direction of entry has a bearing surface in the direction of entry direction fixed and the opposite end is horizontally adjustable in the direction of retraction. Such a design requires less design effort.
  • the opposite end can both in the entry direction and - again via the support arm arranged transversely to the entry direction - transversely to the entry direction be moved. If the front or rear mounting points of a motor vehicle are in a line arranged transversely to the entry direction with the fixed support surfaces, then only the support surfaces of the lifting platform, which are horizontally adjustable in the entry direction, need be aligned with the other mounting points of the motor vehicle for accurate positioning.
  • the adjustment drives of the support arms are designed as hydraulic, pneumatic or preferably electromechanical drives.
  • Electromechanical drives have the advantage that they allow simple yet precise control and can exert sufficient adjustment force.
  • actuating levers or switches which can be designed, for example, as multi-way levers or pressure switches, allow the operator to adapt the contact surfaces of the lifting platform to the mounting points of the respective motor vehicle.
  • control for the adjustment drives has a computer and an associated memory for storing the control programs for positioning the support surfaces under the mounting points for different types of motor vehicles, the computer having an input device for calling up the control program for one has a certain type of motor vehicle.
  • a motor vehicle driven into the drive-in area of the lift in such a way that it comes to a standstill in an approximately defined position in which its front or rear mounting points are in line with the front or rear support surfaces of the lift, which are fixed transversely to the drive-in direction the operator only has to input the motor vehicle type into the computer via the input device in order to trigger a control program which positions the contact surfaces exactly below the motor vehicle underside.
  • the lifting platform has a signal device which triggers an optical or acoustic signal when the fixed contact surfaces are parallel to the retracting direction of a motor vehicle Support arms arranged approximately in a line lying transversely to the direction of entry with the corresponding mounting points on the underside of a motor vehicle entering the entry area of the lifting platform.
  • a signal device could, for example, indicate to the driver of a motor vehicle entering the drive-in area of the lift if the fixed support surfaces are in line with the corresponding mounting points on the underside of the motor vehicle and only from their rest position by means of the support arm arranged transversely to the drive-in direction below the motor vehicle must be moved.
  • the signal device is designed as a light barrier or wheel well, which can preferably be moved automatically into the computer in the direction of entry by entering a certain type of motor vehicle into the computer and which triggers a traffic light or the like when the signal Pick-up points of a motor vehicle entering the entry area of the lifting platform lie in a line transverse to the entry direction with the fixed contact surfaces of the support arms.
  • the traffic light could be designed, for example, as a red-green traffic light or - similar to a car wash - with the illuminated letters "forwards", "stop” and "back".
  • the horizontal movements of the adjustable support arms transversely and longitudinally to the direction of entry of a motor vehicle can be controlled by sensors.
  • sensors For example, while a signaling device facilitates the positioning of the support arm ends which are fixed in the direction of entry, the movement of the support arms under the motor vehicle underside can be transverse to the direction of entry and the adjustment movement of the horizontal and in the direction of entry movable arm end controlled by sensors.
  • the sensors are designed as contact sensors, which are each connected to one of the support surfaces via a cantilever and stop the horizontal movement of the adjustable support arms when the motor vehicle sides and / or the motor vehicle wheels come into contact, whereby the contact sensors are arranged or designed so that when they touch the motor vehicle sides and / or the motor vehicle wheels, the contact surface connected to them is arranged below the corresponding mounting point of the motor vehicle.
  • FIG. 1 shows a lifting platform, generally designated 1, in a plan view with a motor vehicle 2 retracted into its drive-in area B.
  • the lifting platform 1 is designed in a 2-column construction and has on both sides two supporting arms 4 and 4 connected to the lifting columns 3 in a height-adjustable manner 5, which are adjustable in a horizontal plane and extendable from the entry area B of the lifting platform 1 in the rest position.
  • the lifting columns 3 each have a height-adjustable lifting element 6, to which the support arm 4 is rigidly connected via a plate-shaped connecting element 7, which is arranged approximately transversely to the entry direction R of the motor vehicle 2 to be lifted. It engages the other support arm 5 at its end 8 which is adjustable horizontally and approximately transversely to the direction of entry R and points towards the entry area B, is arranged approximately parallel to the entry direction R and is horizontally adjustable approximately in the direction of entry and has the support surfaces 9a and 9b at its ends .
  • the support arms 4 with their ends facing the entry region B transversely to the entry direction R and the support arms 5 attached to the ends 8 can be moved horizontally in the entry direction R, the support arms 4 u. 5 can be adjusted against each other in a horizontal plane like a cross slide. As a result, the support surfaces 9a and 9b arranged on the support arms 5 can also be moved out of the rest position under the motor vehicle 2 and set according to the pick-up points (not shown in FIG. 1).
  • Fig. 1 shows in broad, solid lines the lift 1 in its rest position. Fine dashed lines represent the positions of the support surfaces 9a and 9b in the case of the upper lifting column 3 in FIG. 1 with the support arms 4 and 5 extended to the maximum extent. In the area of the lower lifting column 3 in FIG. 1, the areas 10a and 10b are shown in dashed-edged and hatched quadrilaterals, which can be approached through the support surfaces 9a and 9b by means of the support arms 4 and 5.
  • the end of the support arm 5 arranged parallel to the entry direction R and having the contact surface 9a is designed to be fixed in the entry direction R and can only be moved in the Y direction via the support arm 4.
  • the opposite end of the support arm 5, which has the bearing surface 9b, on the other hand, is designed to be horizontally adjustable in the entry direction R and can therefore be moved both in the entry direction R or X direction and - again via the support arm 4 - in the Y direction.
  • the height-adjustable and horizontally adjustable support arms 4 and 5 are arranged in the rest position outside the drive-in area B of the lifting platform 1.
  • the entry area B is accordingly flat and without ramp-like ramps or trip hazards. If the motor vehicle 2 has reached the light barrier 12 of a signal device 11 when entering in the entry direction R, a red-green traffic light 13 is triggered.
  • the light barrier 12 can be moved in the entry direction R via the control of the lifting platform 1 (not shown in FIG. 1) and can be adjusted depending on the type of motor vehicle.
  • the signaling device 11 indicates to the driver when the front pick-up points of his motor vehicle 2 (not shown in FIG.
  • the support arms 4 and 5 can be moved by an adjustment movement in the Y direction of the support arm 4 stuff 2 to be moved. If the fixed contact surfaces 9a reach the area below the corresponding pick-up points of the motor vehicle 2, the electromechanical adjustment drive 14 of the support arms 4 is stopped by the control of the lifting platform 1. By actuating the adjustment drives of the support arms 5, which are arranged below the support surfaces 9a and horizontally adjustable in the retraction direction R or X-direction, the opposite support surface 9b is also moved into the area of the corresponding mounting points of the motor vehicle 2.
  • This control can be carried out by operating levers or switches, by a computer and / or sensors. If all the support surfaces 9 are below the mounting points of the motor vehicle 2 which are provided for them and recommended by the manufacturer, these can be lifted safely and safely via the lifting elements 6 of the lifting columns 3.
  • FIG. 2 shows a partial cross section of the lifting platform 1 and the motor vehicle 2.
  • the pick-up points 15 shown in dash-dot lines are clearly recognizable, which are recommended by the manufacturer as lifting surfaces and are usually located on a line parallel to the longitudinal center plane of the motor vehicle 2 between the wheels 16 .
  • the structure of the support arms 4 and 5 is also clear from FIG. 2.
  • Both the support arm 4 arranged transversely to the direction of entry R and the support arm 5 arranged in the entry direction are each formed from two tubes 17 and 18, an inner tube 17 being movably guided in an outer tube 18 and connected in a rotationally fixed manner to a spindle nut 19 in which engages a spindle 20 connected to the electromechanical adjustment drives 14 and causing the adjustment movements of the support arms.
  • the support arm 4 Since the support arm 4 has to carry a somewhat greater load and this load must absorb laterally, the support arm 4 is in his Cross section formed larger than the support arm 5 arranged in the retraction direction R.
  • the support arm 4 could consist of an outer rectangular tube 18 (140 ⁇ 120) and an inner rectangular tube 17 (120 ⁇ 100), and the support arm 5 could consist of an outer rectangular tube 18 (120 x 100) and an inner rectangular tube 17 (100 x 80) are formed.
  • the electromechanical adjustment drives 14 connected to the spindle 20 essentially consist of an electric motor and a reduction gear.
  • a particular advantage of the lifting platform 1 according to the invention is the cross-slide-like, linear adjustability of the interconnected support arms 4 and 5 in the X and Y directions.
  • This linear adjustability of the support arms 4 and 5, which are arranged at right angles to one another, permits largely simple and automatic control of the adjustment drives 14.
  • the controller can also automatically move the light barrier 12 in the X direction before a motor vehicle enters the entry area B such that there is such a distance a between the light barrier 12 and the support surfaces 9a fixed in the X direction or entry direction R, which corresponds to the point between the foremost point in the direction of entry R, which is detected by the light barrier 12, and the corresponding pick-up points 15 of the respective type of motor vehicle entering.
  • the fixed support surfaces 9a of the lifting platform 1 in the entry direction R lie in a line L transverse to the entry direction R with the corresponding front attachment points 15 of the motor vehicle 2.
  • the rear support surfaces 9b could also be the fixed and the front support surfaces 9a the support surfaces 9 which can also be moved horizontally in the X direction. If the motor vehicle 2 rests in the position delimited by the light barrier 12 in the entry direction R and shown in FIG. 2, then the support surface 9b can be moved by a horizontal movement of the support arms 5 by a control computer (not shown in FIGS.
  • Length b can be set to the vehicle-specific distance between the mounting points 15.
  • Length b can be set to the vehicle-specific distance between the mounting points 15.
  • the support surfaces 9 can finally be moved under the mounting points 15 of the motor vehicle 2, so that it only needs to be raised in the usual manner.
  • FIG. 2 shows contact surfaces 9 which are connected to contact sensors 21 and 22 serving as sensors, such as are also used, for example, in car wash systems for scanning the wheel position.
  • the contact sensor 21 is connected to the support surface 9a via a cantilever 23.
  • the adjustment drive 14 of the support arm 4 is controlled via the contact sensor 21.
  • the distance d of the contact sensor 21 to the center of the support surface 9a should be chosen so that the support surfaces 9 are in the area of the mounting points 15 of the motor vehicles when the contact sensor 21 touches the side body skin.
  • the contact sensor 22 is also connected to the support surface 9b, which can be moved in the X direction, via a cantilever 23 and controls the horizontal movements of the support arm 5 in the X direction or entry direction R.
  • the contact sensor 22 in FIG. 2 is not vertical , but arranged horizontally. Its distance e from the center of the support surface 9b is chosen so that the support surface 9b lie in the area of the corresponding mounting points 15 on both sides of the motor vehicle 2 when the contact sensor 22 touches the wheel 16 - shown on the right in FIG. 2 - and the adjustment drive 14 of the support arm 5 is thereby stopped.
  • the contact surfaces 9 can also be moved automatically and precisely in the case of various types of motor vehicles under their mounting points 15.
  • the motor vehicle 2 is also stopped by the driver when the signal device is triggered by the light barrier 12 prepositioned with the aid of the controller such that the support surfaces 9a only have to be moved under the motor vehicle 2 in the Y direction by moving the support arms 4 in order to already to be arranged in the area of the corresponding pick-up points 15.
  • a horizontal movement of the support arms 5 then also positions the support surfaces 9b below the corresponding receiving points 15, so that the motor vehicle 2 can be raised in the usual manner by adjusting the height of the lifting elements 6 and the support arms 4 and 5 connected to them.
  • the support surfaces 9 are lowered again via the support arms 4 and 5 and moved from the entry area B into a rest position so that the motor vehicle 2 can be moved freely and freely out of the entry area B.
EP88121283A 1988-03-16 1988-12-20 Elévateur pour véhicules automobiles Withdrawn EP0332758A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883808700 DE3808700A1 (de) 1988-03-16 1988-03-16 Hebebuehne fuer kraftfahrzeuge
DE3808700 1988-03-16

Publications (1)

Publication Number Publication Date
EP0332758A1 true EP0332758A1 (fr) 1989-09-20

Family

ID=6349826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121283A Withdrawn EP0332758A1 (fr) 1988-03-16 1988-12-20 Elévateur pour véhicules automobiles

Country Status (3)

Country Link
EP (1) EP0332758A1 (fr)
CA (1) CA1294950C (fr)
DE (1) DE3808700A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9414605U1 (de) * 1994-09-08 1994-11-03 Haldenwang Gmbh & Co Kg Hebebühne
CN105293375A (zh) * 2015-11-24 2016-02-03 胡和萍 一种汽车举升机牵引控制器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012024286A1 (de) * 2012-12-12 2014-06-12 Roland Hörnstein GmbH & Co. KG Tragarm für Fahrzeughebebühnen-Lastaufnahmen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2302272A1 (fr) * 1975-02-28 1976-09-24 Cfea Dispositif de securite pour elevateurs de vehicules automobiles a deux colonnes
DE2812971A1 (de) * 1977-03-29 1978-11-09 Walter Vogler Hebebuehne
FR2446797A1 (fr) * 1979-01-16 1980-08-14 Villars Julio Installation de levage
FR2507168A1 (fr) * 1981-06-04 1982-12-10 Souriau & Cie Elevateur
US4679660A (en) * 1985-08-03 1987-07-14 Sugiyasu Industries Co., Ltd. Mechanism for automatically storing swing arms used for apparatus for lifting automobiles for repair

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2302272A1 (fr) * 1975-02-28 1976-09-24 Cfea Dispositif de securite pour elevateurs de vehicules automobiles a deux colonnes
DE2812971A1 (de) * 1977-03-29 1978-11-09 Walter Vogler Hebebuehne
FR2446797A1 (fr) * 1979-01-16 1980-08-14 Villars Julio Installation de levage
FR2507168A1 (fr) * 1981-06-04 1982-12-10 Souriau & Cie Elevateur
US4679660A (en) * 1985-08-03 1987-07-14 Sugiyasu Industries Co., Ltd. Mechanism for automatically storing swing arms used for apparatus for lifting automobiles for repair

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9414605U1 (de) * 1994-09-08 1994-11-03 Haldenwang Gmbh & Co Kg Hebebühne
US5678658A (en) * 1994-09-08 1997-10-21 Maha Maschinenbau Haldenwang Gmbh & Co.Kg Lifting platform
CN105293375A (zh) * 2015-11-24 2016-02-03 胡和萍 一种汽车举升机牵引控制器

Also Published As

Publication number Publication date
CA1294950C (fr) 1992-01-28
DE3808700A1 (de) 1989-10-05

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