EP3013729B1 - Device for lifting vehicles - Google Patents

Device for lifting vehicles Download PDF

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Publication number
EP3013729B1
EP3013729B1 EP14736693.4A EP14736693A EP3013729B1 EP 3013729 B1 EP3013729 B1 EP 3013729B1 EP 14736693 A EP14736693 A EP 14736693A EP 3013729 B1 EP3013729 B1 EP 3013729B1
Authority
EP
European Patent Office
Prior art keywords
support arm
lifting device
support
arm body
pivot pin
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
EP14736693.4A
Other languages
German (de)
French (fr)
Other versions
EP3013729A1 (en
Inventor
Dieter Benz
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Individual
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Individual
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Filing date
Publication date
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Publication of EP3013729A1 publication Critical patent/EP3013729A1/en
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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
    • B66F13/00—Common constructional features or accessories
    • 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
    • B66F7/025—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars screw operated
    • 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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/02—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions
    • 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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
    • 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
    • B66F7/04—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars hydraulically or pneumatically operated
    • 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

Definitions

  • the invention relates to a lifting device for lifting and lowering of vehicles with a movable up and down carrier on which at least one length-adjustable support arm is pivotally mounted about a pivot axis on the carrier.
  • Such a lifting device is for example from the DE 18 16 919 A1 known.
  • This two-post lift has on a support to a first support arm which is adjustable in length or extendable and on the same support a second support arm, which is not only extendable, but also has pivotable support arm pieces to the carrier.
  • the extension of the pivotable support arm is limited due to the telescopically nested arrangement by the pivot axis which connects the first and second Tragarm published together and along which extends the pivoting jaws.
  • a lifting platform for motor vehicles which has on a support two pivotally arranged support arms, wherein the pivotally mounted support arms are telescopically formed and extendable.
  • the pivotally mounted support arms are telescopically formed and extendable.
  • the support arm piece provided as an extension essentially corresponds to the length of the second support arm piece, so that only the load receptacle protrudes relative to the second support arm portion.
  • the invention has for its object to provide a lifting device for vehicles, which allows a compact design and a larger adjustment of the support arm and thus a larger work area.
  • the lifting device With a carrier, which comprises an upper and a lower support portion between which a Tragarm manipulate is pivotally supported by a pivot assembly which is formed by an upper and a lower pivot bearing, so that the pivot axis both the Tragarmeffort and the support sections passes through, but the interior of the Tragarm emotionss is not traversed by a pivot pin, it is possible that the interior of the Tragarm emotionss is free and at least one extendable Tragarm supplements can be arranged therein.
  • both a statically stable arrangement is created, which can accommodate high loads as well as achieves a compact design.
  • the configuration of the free inner space in Tragarmeffort a large adjustment or extension for the at least one Tragarm mixes be created compared to a known from the prior art, through the Tragarmoasa completely extending bolt, which represents a limitation in the movement.
  • the upper and lower pivot bearing is located in a common pivot axis which extends through the interior of the Tragarm emotionss.
  • At least one pivot bearing is designed as a pivot pin.
  • a pivot pin is a simple design measure. This also allows the at least one, the extension forming Tragarm Faculty, completely through the interior of the Tragarm emotionss be passed.
  • a preferred embodiment of the lifting device provides that the Tragarm emotions is mounted on the upper support portion of the carrier by the upper pivot pin hanging.
  • the frictional force is significantly reduced in a pivoting movement for positioning the load-receiving element to the support points of the vehicle and pivoting back into a starting position.
  • the Tragarmenia is guided at the lower support portion by the lower pivot pin to the pivot axis in alignment. Due to the design of the upper pivot pin for hanging receiving the Tragarm emotionss sufficient to guide the Tragarm emotionss to the pivotable arrangement to the lower Tragarmabites. As a result, a further simplification in the structural design can be made possible.
  • the Tragarm morsulfus is preferably designed as a box-shaped housing having an upper housing wall, in which a bore for positioning the upper pivot pin is provided, wherein the upper pivot pin engages behind the upper housing wall in the interior of the Tragarmitess.
  • the hanging arrangement can be configured in a simple manner.
  • the upper pivot pin has a circumferential groove which extends above an upper side of the upper support section, in which engages in a mounting position of the pivot pin to the support section and Tragarm emotions a pivot pin securing. This allows a stable arrangement in structurally simple Be created manner which allows a quick disassembly even in the event of damage.
  • the pivot bolt safety is plate-shaped and comprises a U-shaped holding portion which engages in the groove of the upper pivot pin. This can be done to secure the upper pivot pin a simple insertion movement of the pivot pin safety in the groove, the plate-shaped pivot pin safety, for example, on the upper support portion and is fixed by a releasable attachment, such as a screw on the upper support portion, and secures the upper pivot pin.
  • the Tragarm emotionss For pivotally mounting the Tragarm emotionss to the upper and lower support portion of the upper and lower pivot pin are respectively from the interior of the Tragarmianus forth or from the outside or optionally from the outside and / or outside in a receiving bore on the upper and lower housing wall of Tragarmefforts and in corresponding holes in the upper and lower support section used.
  • the upper pivot pin With regard to the upper pivot pin, this has the advantage that a pivot bolt safety is provided in a simple manner on the upper side of the support section and a maximum of free interior of the support arm body is provided for the support arm piece guided therein and forming the extension.
  • the lower pivot pin which only needs to be used and preferably by a clamping, such as countersunk screws, is secured over the interior.
  • the lower pivot pin protrudes at a bottom only slightly opposite to the lower support portion or is flush with this, so that a maximum lowering movement of the carrier is maintained.
  • the Tragarm In the box-shaped housing of the Tragarm emotionss at least one guide and / or sliding element is provided on each housing wall, through which the support arm piece mounted therein is movably guided. As a result, a facilitated length adjustment of the support arm may be possible.
  • the Tragarm In the same time the Tragarm Korean within guided centrally of the support arm body, so that the upper and lower portions of the Tragarm Cambodias on the upper and lower shoulder of the pivot pin, which projects into the interior, can be passed, which extend slightly in the interior of the Tragarm emotionss.
  • a plurality of support arm pieces can be arranged telescopically in the support arm body. Due to the design of the split pivot pin, so an upper and lower pivot pin which releases the respective interior, this telescopic arrangement can be made possible, so that the support arm can be arranged in a starting position with only a small space.
  • a stop for limiting an extension movement of the extension forming support arms is provided, as well as to secure a retraction into an initial position.
  • the upper and / or lower pivot pin preferably has at least one lubrication channel, which is accessible from the outside and leads to the bearing point. As a result, a simple reduction of the frictional force can be achieved.
  • the Tragarm emotions has at a front in the pull-out of the Tragarm matterss or rear housing wall at least one roller guide, in particular spring-loaded or flexible roller guide, which occurs in a load picking function.
  • the retraction and extension movement of Tragarm matterss for transferring into a use position or back to a starting position is facilitated.
  • the tentacle extending or shortening movement of the at least one Tragarm mecanics is prevented.
  • Such a roller guide is preferably also provided on the Tragarm mosaic or an extension of the Tragarm regardss, wherein a roller guide on the extension and a further roller guide in the Tragarm mosaic are arranged in opposite directions, so that they act to support each other in a relative movement.
  • a two-post lift 11 is shown in perspective, which comprises two associated lifting devices 12.
  • This lifting device 12 comprises a lifting column 14, which is firmly connected, for example, with a base plate 16 which is fixedly connected to a substrate.
  • a carrier 17 is provided along a lifting axis 15 of the lifting device 11 movable up and down.
  • the carrier 17 receives a load-receiving means 18.
  • the Load-receiving means 18 comprises a housing portion 19 which is at least partially closed, at the respective outer ends of the support arms 21 are pivotally received about a vertical pivot axis 22.
  • These support arms 21 are formed telescopically and have the pivot axis 22 opposite load-receiving elements 23 and provisions to arrange various load-bearing elements 23 interchangeable thereon.
  • the carrier 17 further receives a drive device 25.
  • This may be formed electro-hydraulically, hydraulically or mechanically and has according to the illustrated embodiment, a hydraulic unit.
  • This drive device 25 is monitored and controlled by a controller 26.
  • a controller 26 For energy supply, for example, at least one accumulator 27 may be provided.
  • the controller 26 operates advantageously wirelessly.
  • a remote control may be provided to control the lifting devices 12.
  • the two associated and opposite lifting devices 12 communicate wirelessly with each other to ensure, for example, a simultaneous initiation of a lifting and lowering movement and a mutual monitoring of synchronization or the like.
  • 12 supply lines and / or control lines may be provided between the two lifting devices, so that both control signals and a power supply are made possible by cable.
  • the carrier 17 is sleeve-shaped or cartridge-shaped and surrounds the lifting column 14. In this arrangement, it is therefore provided that the drive spindle or the hydraulic cylinder for raising and lowering the carrier 17 is disposed within the lifting column 14.
  • the hydraulic cylinder is supported on the one hand at a lower end of the lifting column 14 and the base plate 16 and engages the upper, inner end portion of the carrier 17.
  • guide elements 29 are provided therebetween, which may be formed, for example, as a roller or sliding elements or as a combination thereof.
  • a fall arrester 32 by which after the activation of a lifting movement of the carrier 17, a deactivation or a currentless circuit of a magnet of the fall arrest occurs and a locking element makes a backup of the set stroke position.
  • An alternative embodiment of the lifting device 12 provides that the lifting columns have a U-shaped cross section, within which the carrier is guided movable up and down, wherein the at least partially closed housing portion 19 in analogy to the lifting device 12 according to FIG. 2 is arranged on the carrier 17 to receive the support arms 21.
  • Another alternative embodiment of the lifting device 11 may be that instead of the lifting column and the carrier movable up and down, a lifting ram of a punching stage is provided, wherein the carrier is arranged at the upper end of the lifting ram on which the support arms 21 are provided.
  • a further alternative embodiment of the lifting device 11 may be provided, in which the up and down movable carrier by means of a half scissors or double scissors, which in turn are actuated with a hydraulic cylinder, is moved up and down, on which the support arms 21 may be arranged.
  • a front cover 34 is provided on the carrier 17, a front cover 34 is provided. Behind this front cover 34, a locking device 37 is provided in the housing portion 19 which engages the support arm 21. By means of this locking device 37, a set pivoting position of the support arm 21 can be fixed, so that the adjusted pivot position of the support arm 21 is maintained at a load or support point on the vehicle.
  • the locking device 37 comprises an actuatable adjusting device 38, which is designed according to the embodiment as a hydraulic cylinder 39.
  • This hydraulic cylinder 39 comprises a piston rod 41, whose outer end engages a bearing point 42 of the pivotable support arm 21.
  • the adjusting device 38 may alternatively to the hydraulic cylinder 39 a pneumatically driven or electrically or electromagnetically driven adjusting device 38 and / or comprise a reciprocating piston.
  • a linear drive can be provided, which in turn can be driven electrically, pneumatically or hydraulically.
  • An adjusting movement or movement of the adjusting device 38 can be controlled by a switching valve or a switching contact, which is activated in particular when the carrier 17 rests in a lowered position on the ground to the pivotal support arms 21 from a use position in which the load-bearing elements 23 the Support points of the vehicle are assigned, in one
  • the support arms 21 are pivoted out of the driving range of the vehicle, so that it can be moved out in one.
  • the adjusting movement of the adjusting device 38 can also be driven only via a control device of the lifting device 12.
  • FIG. 2 is a schematically enlarged view of a pivoting area between the carrier 17 and the pivotally mounted thereto support arm 21 is shown, wherein the support arm 21 is shown in a retracted position or home position 45.
  • FIG. 3 the pivotable support arm 21 is shown in an extended position or use position 47.
  • an upper and lower support portion 48, 49 are provided, which are preferably plate-shaped and form a U-shaped receiving area, so that between the upper and lower support portion 48, 49 of the pivotable support arm 21 is mounted.
  • the pivot axis 22 extends through the upper and lower support arm portions 48, 49 therethrough, as well as by the support arm 21, wherein a pivot assembly 50 is provided, which has a two-part pivot bearing (55, 70), so that the extendable support arm 21, the pivot axis 22nd can traverse, that is, that the pivotable support arm 21 can also be passed between the upper pivot bearing 55 and the lower pivot bearing 70.
  • the pivotable support arm 21 includes a Tragarmsammlung 52, which has a box-shaped housing 53. Between the upper support portion 49 and an upper housing wall 54 of TragarmMechs 52, the upper pivot bearing 55 is formed. By analogy, a lower pivot bearing 70 is provided between a lower housing wall 72 of the TragarmMechs 52 and the lower support portion 49, wherein the two pivot bearings 55 and 70 are in the same pivot axis 22, but are separated from each other. As a result, an inner space in the box-shaped housing 53 of the Tragarm emotionss 52 is released, so that, for example, a first Tragarm von 58 is received in the housing 53 and this traverses. The first Tragarmmaschine 58 is completely movable relative to the housing 53.
  • a further or second Tragarm cluster 59 may be provided, at the outer end of the load-receiving element 23 can be arranged. It is also possible for further support arm pieces to be nested one inside the other so that the length-adjustable support arm 21 is telescopically formed.
  • the first and second support arm pieces 58, 59 are telescopically positioned one inside the other and disposed in a retracted position relative to the support arm body 52, as shown in Figs FIG. 2 is shown.
  • the pivotable support arm 21 with respect to the load-receiving element 23 also still be pivoted laterally outwards, so that a rear end of the first Tragarm Cultures 58 can be pivoted to the lifting column 14 to allow a space-saving arrangement and compact unit when not in use.
  • FIG. 4 a perspective view is shown on a partially elongated support arm 21.
  • FIG. 5 is a schematic sectional view through the pivot axis 22 of the pivot assembly 50 is shown.
  • the box-shaped housing 53 is preferably composed of sheet metal blanks and preferably welded together, so that a square interior is formed.
  • An upper housing wall 54 is aligned parallel to the upper support portion 49, wherein in the housing wall 54 and the support portion 49 each have a bore 56 is introduced so that the upper pivot pin 61 forms an upper pivot bearing 55 for the Tragarm emotions 52 to the upper support portion 48. It can be provided that the pivot pin 61 is inserted from the interior into the Tragarmsammlung 52, so that a shoulder 62 rests against an inner side of the upper housing wall 54 and engages behind this.
  • a circumferential groove 63 is provided in the pivot pin 61, which extends adjacent to the upper support portions 48, so that a pivot pin fuse 64 can engage therein to fix the pivot pin 61 to the upper support portion 48.
  • the support arm 21, in particular the Tragarm stresses 52 added to the upper support portion 48, that is, that between the upper housing wall 54 and the upper support portion 48 and an upper support portion 48 associated stiffening element 65, a small gap 66 is formed.
  • a lubricant supply 67 is preferably provided, that is, that from the outside lubricant can be introduced so that this by an axial and at least one radial channel up to the region of the bearing between the upper housing wall 54 and the shoulder 62 of Swivel pin 61 can be supplied.
  • the pivot bolt safety 64 is preferably also designed as a plate-shaped sheet-metal part, which has a U-shaped holding portion 68 on the upper support portion 48, which engages in the groove 63.
  • a screw for fastening the pivot bolt safety 64 may be provided a screw, as in FIG. 4 is shown.
  • the Tragarmenia 52 is connected to a lower pivot pin 71 for the lower support portion 49 rotatably mounted, wherein the pivot pin 71 may be inserted from the inside into the Tragarmsammlung 52 and extends through a bore 56 in the lower housing wall 72 and a complementary bore 56 in the lower support portion 49.
  • This pivot pin 71 in turn has a shoulder 62 which bears against the inside of the lower housing wall 72.
  • the pivot pin 71 is cylindrical and serves as a guide of Tragarm emotionss 52 to the lower support portion 49.
  • a screw 73 may be provided to secure the lower pivot pin 71.
  • this lower pivot pin 71 may have a lubricant supply 67.
  • a bottom of the pivot pin 71 is provided flush with a bottom 74 of the lower support portion 49, so that this bottom 74 of the lower support portion 49 can rest together with the support 17 on the ground or ground.
  • the lower pivot bearing 70 may be simplified so that it serves only for securing the Tragarm emotionss 52 for pivotal arrangement about the pivot axis 22, that is, between the lower housing wall 72 and the lower support portion 49 is also provided a gap, whereby the friction is in turn reduced.
  • the two pivot pins 61, 71 have the same diameter, whereby a simplified production of Tragarm stresses 52 with respect to the upper and lower housing wall 54, 72 is made possible.
  • the upper pivot pin can also be made larger.
  • each housing wall 54, 72, 75, 76 guide and / or sliding elements 77 are provided.
  • a preferably also box-shaped housing 53 of the first Tragarm matterss 58 is centrally received and guided to Tragarm emotions 52, so that an upper wall portion 79 and lower wall portion 80 of the first Tragarm ceremoniess 58 on the shoulder 62 of the upper pivot pin 61 and the shoulder 62 of the lower pivot pin 71 can be passed to a use position 47 according to FIG. 2 to be able to take.
  • FIG. 6 is a longitudinal section of the pivotable support arm 21 in the home position 45 according to FIG. 2 shown.
  • FIG. 7 shows a longitudinal section of the pivotable support arm 21 in a use position 47 according to FIG. 3 .
  • This length-adjustable support arm 21 includes the Tragarm emotions 52, the first Tragarm von 58 and the second Tragarm von 59, at the outer end of the load-receiving element 23 is used. It is understood that a plurality of Tragarm thoroughlye 58, 59 may be provided.
  • a roller guide 83 is provided, which is arranged at a front end against which the second Tragarm rules 59 to the first Tragarm significance 58 is extendable.
  • the second Tragarm nine 59 advantageously also has such a roller guide 83, which, however, is provided at an inner upper or rear upper end.
  • the support arm body 52 may also be provided with such a roller guide 83 with respect to the withdrawal direction of the support arm pieces 58, 59.
  • These roller guides 83 act during the extension and retraction of Tragarm Koreane 58, 59 supportive, provided that no load on the load-receiving element 23 acts.
  • these roller guides 83 which have a resilient mounting or spring mounting, are loaded, so that the support arm pieces 58, 59 to each other, and the Tragarm Gla 58 to Tragarm emotions 52 occupy a firmly juxtaposed arrangement.
  • the retraction and extension of the first and second Tragarm matterss 58, 59 are limited by respective stops 84.
  • a stop 84 is provided on the first Tragarm workflow 58 at a rear upper end, which is limited in an extended position of the first Tragarm matterss 58 through the shoulder 62 of the pivot pin 61.
  • a retraction movement of the first Tragarm matterss 58 to Tragarm emotions 52 is provided for example by the provided on the side wall 75 stops 84 (FIG. FIG. 3 ) limited.
  • the extension movement of the second Tragarm matters 49 is limited by the example shown as a screw stop 84 in the side wall 75 of the first Tragarm simplifies 58.
  • FIG. 8 an application example of a two-post lift 11 is shown, in which the support arms 21 each receive a lifting device 12 a rail 86.
  • the support arm 21 in this embodiment comprises, for example, a Tragarmgrundève 52 and a slidably received therein first Tragarm Anlagen 58.
  • the two support arms 21 are aligned parallel to each other and take on the load receiving elements 23 guide rail 86 on. Due to the configuration of the support arm 21 according to, for example, a first Tragarm Nursing 58, the distance between the opposing rails 86 can be adjusted to a track width of a vehicle to be lifted in a simple manner.
  • the support arm 21 may alternatively comprise two or more Tragarm harmonye. It is also possible that directly to the Tragarm emotions 52, the load-receiving element 23 is attached.
  • one of the above-described embodiments for a lifting device 12 can also be used for receiving a running rail 86.
  • FIG. 9 shows a schematic side view of the support arm 21 and the rail 86 arranged thereon.
  • an extended load arm 87 includes, which allows that a ride-up surface 88 of the running rail 86 can be engaged.
  • the load space 87 extends completely over the width of the ramp surface 88 or substantially across the width of the ramp surface 88.
  • the illustrated embodiment of the rail 86 has, for example, an omega-shaped cross-section and is advantageously designed as a bent sheet metal part, so that in a simple way the load arm 87th in openings 89 on the side cheek 90 can be performed and is fixed to the opposite cheek 90 by means of a mounting plate and a fastening means 93.
  • the load-receiving element 23 can also act on an underside of the running rail 86.
  • the load-receiving element 23 is adapted such that a first contact surface 91 (FIG. FIG. 10 ) is provided at the front end of the load arm 87 of the load-receiving element 23, which is adapted to the inclination of the lateral cheek 90.
  • a second contact surface 92 is provided, which acts on an outer side of the side cheek 90, so that by such an arrangement a defined system and positioning of the rail 86 to support arm 21 on the support surfaces 91 and 92 allows is.
  • two-post lift 11 takes on a rail 86, which is provided for lifting and lowering of, for example, passenger cars or vans. If longer vehicles are to be raised, for example, a four-pillar lift may be provided, in which two lifting devices 12 at a distance to each other with their support arms 21 on a long rail 86 attack.
  • the support arm 21 which is pivotally mounted to the carrier 17, and for example, a first Tragarm von 58 slidably receives in TragarmAm 52, is also possible that different Tragarm Koreane 58 can be used with differing trained load-receiving elements 23 to a quick and easy Conversion of the lifting device 12 to allow for different applications.
  • a simple conversion to a two-pillar rail lift be enabled.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jib Cranes (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Description

Die Erfindung betrifft eine Hebevorrichtung zum Heben und Senken von Fahrzeugen mit einem auf und ab bewegbaren Träger, an dem zumindest ein längenverstellbarer Tragarm um eine Schwenkachse an dem Träger schwenkbar gelagert ist.The invention relates to a lifting device for lifting and lowering of vehicles with a movable up and down carrier on which at least one length-adjustable support arm is pivotally mounted about a pivot axis on the carrier.

Eine solche Hebevorrichtung ist beispielsweise aus der DE 18 16 919 A1 bekannt. Diese Zweisäulen-Hebebühne weist an einem Träger einen ersten Tragarm auf, der längenverstellbar bzw. ausfahrbar ist sowie an demselben Träger einen zweiten Tragarm, der nicht nur verlängerbar ist, sondern auch zum Träger schwenkbare Tragarmstücke aufweist. Die Verlängerung des schwenkbaren Tragarmes ist aufgrund der teleskopartig ineinander gesteckten Anordnung durch die Schwenkachse begrenzt, welche das erste und zweite Tragarmstück miteinander verbindet und entlang der sich der Schwenkbacken erstreckt.Such a lifting device is for example from the DE 18 16 919 A1 known. This two-post lift has on a support to a first support arm which is adjustable in length or extendable and on the same support a second support arm, which is not only extendable, but also has pivotable support arm pieces to the carrier. The extension of the pivotable support arm is limited due to the telescopically nested arrangement by the pivot axis which connects the first and second Tragarmstück together and along which extends the pivoting jaws.

Aus der EP 1 357 079 A2 ist des Weiteren eine Hebebühne für Kraftfahrzeuge bekannt, welche an einem Träger zwei schwenkbar angeordnete Tragarme aufweist, wobei die schwenkbar angeordneten Tragarme teleskopartig ausgebildet und verlängerbar sind. Zur kompakten Anordnung der Hebebühne im unbenutzten Zustand ist der längenverstellbare Tragarm durch zwei schwenkbar zueinander angeordnete Tragarmstücke ausgebildet, wobei eine erste Schwenkachse den Träger mit dem ersten Tragarmstück und eine zweite Schwenkachse das zweite Tragarmstück mit dem ersten Tragarmstück verbindet. Das Aneinanderschwenken des ersten und zweiten Tragarmstücks ist dadurch möglich, dass die zweite Schwenkachse versetzt zum zweiten Tragarmstück positioniert ist, um an dem ersten Tragarmstück anzugreifen. Durch den Versatz in Querrichtung ist das parallele Aneinanderliegen möglich. Das als Verlängerung vorgesehene Tragarmstück entspricht im Wesentlichen der Länge des zweiten Tragarmstückes, so dass lediglich die Lastenaufnahme gegenüber dem zweiten Tragarmabschnitt hervorsteht. Diese Anordnung weist durch die versetzte Anordnung der Schwenkachse, welche außerhalb des zweiten Tragarmstückes liegt, den Nachteil auf, dass zusätzliche Versteifungselemente vorgesehen sein müssen, um eine hinreichend steife Verbindung zwischen dem zweiten Tragarmabschnitt und dem ersten Tragarmabschnitt zu schaffen, um die Lasten von Fahrzeugen aufnehmen zu können.From the EP 1 357 079 A2 Furthermore, a lifting platform for motor vehicles is known, which has on a support two pivotally arranged support arms, wherein the pivotally mounted support arms are telescopically formed and extendable. For compact arrangement of the lift in the unused state of the length-adjustable support arm is formed by two pivotally arranged to each other Tragarmstücke, wherein a first pivot axis connects the carrier with the first Tragarmstück and a second pivot axis, the second Tragarmstück with the first Tragarmstück. The pivoting of the first and second Tragarmstücks is possible in that the second pivot axis is offset from the second Tragarmstück positioned to engage the first Tragarmstück. Due to the offset in the transverse direction, the parallel abutment is possible. The support arm piece provided as an extension essentially corresponds to the length of the second support arm piece, so that only the load receptacle protrudes relative to the second support arm portion. This arrangement, by the staggered arrangement of the pivot axis, which outside of the second Tragarmstückes has the disadvantage that additional stiffening elements must be provided in order to provide a sufficiently rigid connection between the second Tragarmabschnitt and the first Tragarmabschnitt to accommodate the loads of vehicles can.

Der Erfindung liegt die Aufgabe zugrunde, eine Hebevorrichtung für Fahrzeuge zu schaffen, welche eine kompakte Bauweise und einen größeren Verstellbereich des Tragarms und somit einen größeren Arbeitsbereich ermöglicht.The invention has for its object to provide a lifting device for vehicles, which allows a compact design and a larger adjustment of the support arm and thus a larger work area.

Diese Aufgabe wird durch die Hebevorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Weitere vorteilhafte Ausführungsformen sind in den weiteren Ansprüchen angegeben.This object is achieved by the lifting device having the features of claim 1. Further advantageous embodiments are specified in the further claims.

Durch die Ausgestaltung der Hebevorrichtung mit einem Träger, welcher einen oberen und einen unteren Trägerabschnitt umfasst, zwischen denen ein Tragarmkörper durch eine Schwenkanordnung schwenkbar gelagert ist, welche durch ein oberes und ein unteres Schwenklager ausgebildet ist, so dass die Schwenkachse sowohl den Tragarmkörper und die Trägerabschnitte durchläuft, jedoch der Innenraum des Tragarmkörpers nicht durch einen Schwenkbolzen durchquert ist, wird ermöglicht, dass der Innenraum des Tragarmkörpers frei ist und zumindest ein ausfahrbares Tragarmstück darin anordenbar ist. Somit wird sowohl eine statisch stabile Anordnung geschaffen, welche hohe Lasten aufnehmen kann als auch eine kompakte Bauweise erzielt. Darüber hinaus kann durch die Ausgestaltung des freien Innenraums im Tragarmkörper ein großer Verstellbereich oder Ausfahrbereich für das zumindest eine Tragarmstück geschaffen werden, gegenüber einem aus dem Stand der Technik bekannten, sich durch den Tragarmkörper vollständig hindurch erstreckender Bolzen, der eine Beschränkung in der Verfahrbewegung darstellt.By the configuration of the lifting device with a carrier, which comprises an upper and a lower support portion between which a Tragarmkörper is pivotally supported by a pivot assembly which is formed by an upper and a lower pivot bearing, so that the pivot axis both the Tragarmkörper and the support sections passes through, but the interior of the Tragarmkörpers is not traversed by a pivot pin, it is possible that the interior of the Tragarmkörpers is free and at least one extendable Tragarmstück can be arranged therein. Thus, both a statically stable arrangement is created, which can accommodate high loads as well as achieves a compact design. In addition, the configuration of the free inner space in Tragarmkörper a large adjustment or extension for the at least one Tragarmstück be created compared to a known from the prior art, through the Tragarmkörper completely extending bolt, which represents a limitation in the movement.

Bevorzugt ist vorgesehen, dass das obere und untere Schwenklager in einer gemeinsamen Schwenkachse liegt, welche sich durch den Innenraum des Tragarmkörpers erstreckt. Dadurch kann eine kompakte Bauweise sowie eine zur Kraftaufnahme optimierte Anordnung geschaffen werden, wobei gleichzeitig ermöglicht bleibt, dass ein Innenraum des Tragarmkörpers frei zugänglich für ein Tragarmstück ist, um diese darin verschiebbar zu positionieren.It is preferably provided that the upper and lower pivot bearing is located in a common pivot axis which extends through the interior of the Tragarmkörpers. As a result, a compact design and optimized for power absorption arrangement can be created while still allowing an interior of the support arm body to be freely accessible to a support arm piece for slidably positioning it therein.

Bevorzugt ist vorgesehen, dass zumindest ein Schwenklager als Schwenkbolzen ausgebildet ist. Ein solcher Schwenkbolzen stellt eine einfache konstruktive Maßnahme dar. Dadurch kann auch das zumindest eine, die Verlängerung bildende Tragarmstück, vollständig durch den Innenraum des Tragarmkörpers hindurchführbar sein.It is preferably provided that at least one pivot bearing is designed as a pivot pin. Such a pivot pin is a simple design measure. This also allows the at least one, the extension forming Tragarmstück, completely through the interior of the Tragarmkörpers be passed.

Eine bevorzugte Ausführungsform der Hebevorrichtung sieht vor, dass der Tragarmkörper an dem oberen Trägerabschnitt des Trägers durch den oberen Schwenkbolzen hängend gelagert ist. Durch eine solche Anordnung und Ausgestaltung des Schwenkbolzens wird die Reibungskraft bei einer Schwenkbewegung zur Positionierung des Lastaufnahmeelementes zu den Stützpunkten des Fahrzeuges und ein Zurückschwenken in eine Ausgangsposition erheblich reduziert.A preferred embodiment of the lifting device provides that the Tragarmkörper is mounted on the upper support portion of the carrier by the upper pivot pin hanging. By such an arrangement and design of the pivot pin, the frictional force is significantly reduced in a pivoting movement for positioning the load-receiving element to the support points of the vehicle and pivoting back into a starting position.

Des Weiteren ist bevorzugt vorgesehen, dass der Tragarmkörper am unteren Trägerabschnitt durch den unteren Schwenkbolzen zur Schwenkachse fluchtend geführt ist. Aufgrund der Ausgestaltung des oberen Schwenkbolzens zur hängenden Aufnahme des Tragarmkörpers genügt ein Führen des Tragarmkörpers zur schwenkbaren Anordnung zum unteren Tragarmabschnitt. Dadurch kann eine weitere Vereinfachung im konstruktiven Aufbau ermöglicht sein.Furthermore, it is preferably provided that the Tragarmkörper is guided at the lower support portion by the lower pivot pin to the pivot axis in alignment. Due to the design of the upper pivot pin for hanging receiving the Tragarmkörpers sufficient to guide the Tragarmkörpers to the pivotable arrangement to the lower Tragarmabschnitt. As a result, a further simplification in the structural design can be made possible.

Der Tragarmkörper ist bevorzugt als kastenförmiges Gehäuse ausgebildet, welches eine obere Gehäusewand aufweist, in welcher eine Bohrung zur Positionierung des oberen Schwenkbolzens vorgesehen ist, wobei der obere Schwenkbolzen im Innenraum des Tragarmkörpers die obere Gehäusewand hintergreift. Dadurch kann in einfacher Weise die hängende Anordnung ausgestaltet sein.The Tragarmkörper is preferably designed as a box-shaped housing having an upper housing wall, in which a bore for positioning the upper pivot pin is provided, wherein the upper pivot pin engages behind the upper housing wall in the interior of the Tragarmkörpers. As a result, the hanging arrangement can be configured in a simple manner.

Der obere Schwenkbolzen weist eine umlaufende Nut auf, welche oberhalb einer Oberseite des oberen Trägerabschnitts verläuft, in welchem in einer Montageposition des Schwenkbolzens zum Trägerabschnitt und Tragarmkörper eine Schwenkbolzensicherung eingreift. Dadurch kann eine stabile Anordnung in konstruktiv einfacher Weise geschaffen werden, welche auch im Schadensfall eine schnelle Demontage ermöglicht.The upper pivot pin has a circumferential groove which extends above an upper side of the upper support section, in which engages in a mounting position of the pivot pin to the support section and Tragarmkörper a pivot pin securing. This allows a stable arrangement in structurally simple Be created manner which allows a quick disassembly even in the event of damage.

Die Schwenkbolzensicherung ist plattenförmig ausgebildet und umfasst einen U-förmigen Halteabschnitt, der in die Nut des oberen Schwenkbolzens eingreift. Dadurch kann zur Sicherung des oberen Schwenkbolzens eine einfache Steckbewegung der Schwenkbolzensicherung in die Nut erfolgen, wobei die plattenförmige Schwenkbolzensicherung beispielsweise am oberen Trägerabschnitt anliegt und durch eine lösbare Befestigung, wie beispielsweise eine Verschraubung am oberen Trägerabschnitt, fixiert ist und den oberen Schwenkbolzen sichert.The pivot bolt safety is plate-shaped and comprises a U-shaped holding portion which engages in the groove of the upper pivot pin. This can be done to secure the upper pivot pin a simple insertion movement of the pivot pin safety in the groove, the plate-shaped pivot pin safety, for example, on the upper support portion and is fixed by a releasable attachment, such as a screw on the upper support portion, and secures the upper pivot pin.

Zur schwenkbaren Anordnung des Tragarmkörpers zum oberen und unteren Trägerabschnitt werden der obere und untere Schwenkbolzen jeweils vom Innenraum des Tragarmkörpers her oder von außen oder wahlweise von außen und/oder außen in eine Aufnahmebohrung an der oberen und unteren Gehäusewand des Tragarmkörpers und in korrespondierende Bohrungen im oberen und unteren Trägerabschnitt eingesetzt. Dies weist hinsichtlich dem oberen Schwenkbolzen den Vorteil auf, dass auf der Oberseite des Trägerabschnitts in einfacher Weise eine Schwenkbolzensicherung vorgesehen ist und ein Maximum an freiem Innenraum des Tragarmkörpers für das darin geführte, die Verlängerung bildende Tragarmstück vorgesehen ist. Gleiches gilt für den unteren Schwenkbolzen, der lediglich eingesetzt werden braucht und vorzugsweise durch eine Klemmung, wie beispielsweise Senkschrauben, über den Innenraum gesichert ist. Der untere Schwenkbolzen ragt an einer Unterseite nur geringfügig gegenüber dem unteren Trägerabschnitt hervor oder ist mit diesem bündig, so dass eine maximale Absenkbewegung des Trägers erhalten bleibt.For pivotally mounting the Tragarmkörpers to the upper and lower support portion of the upper and lower pivot pin are respectively from the interior of the Tragarmkörpers forth or from the outside or optionally from the outside and / or outside in a receiving bore on the upper and lower housing wall of Tragarmkörpers and in corresponding holes in the upper and lower support section used. With regard to the upper pivot pin, this has the advantage that a pivot bolt safety is provided in a simple manner on the upper side of the support section and a maximum of free interior of the support arm body is provided for the support arm piece guided therein and forming the extension. The same applies to the lower pivot pin, which only needs to be used and preferably by a clamping, such as countersunk screws, is secured over the interior. The lower pivot pin protrudes at a bottom only slightly opposite to the lower support portion or is flush with this, so that a maximum lowering movement of the carrier is maintained.

Im kastenförmigen Gehäuse des Tragarmkörpers ist an jeder Gehäusewand zumindest ein Führungs- und/oder Gleitelement vorgesehen, durch welches das darin gelagerte Tragarmstück verfahrbar geführt ist. Dadurch kann eine erleichterte Längenverstellung des Tragarms ermöglicht sein. Gleichzeitig wird der Tragarmstück innerhalb dem Tragarmkörper zentriert geführt, so dass der obere und untere Abschnitt des Tragarmstücks an der oberen und unteren Schulter des Schwenkbolzens, der in den Innenraum ragt, vorbeigeführt werden kann, die sich geringfügig im Innenraum des Tragarmkörpers erstrecken.In the box-shaped housing of the Tragarmkörpers at least one guide and / or sliding element is provided on each housing wall, through which the support arm piece mounted therein is movably guided. As a result, a facilitated length adjustment of the support arm may be possible. At the same time the Tragarmstück within guided centrally of the support arm body, so that the upper and lower portions of the Tragarmstücks on the upper and lower shoulder of the pivot pin, which projects into the interior, can be passed, which extend slightly in the interior of the Tragarmkörpers.

Des Weiteren ist bevorzugt vorgesehen, dass mehrere Tragarmstücke teleskopartig in dem Tragarmkörper anordenbar sind. Durch die Ausgestaltung des geteilten Schwenkbolzen, also einem oberen und unteren Schwenkbolzen, der den jeweiligen Innenraum freigibt, kann diese teleskopartige Anordnung ermöglicht werden, so dass der Tragarm mit nur einem geringen Bauraum in einer Ausgangsposition anordenbar ist.Furthermore, it is preferably provided that a plurality of support arm pieces can be arranged telescopically in the support arm body. Due to the design of the split pivot pin, so an upper and lower pivot pin which releases the respective interior, this telescopic arrangement can be made possible, so that the support arm can be arranged in a starting position with only a small space.

Des Weiteren ist bevorzugt vorgesehen, dass jeweils an einem vorderen und/oder hinteren Ende des Tragarms und Tragarmkörpers ein Anschlag zur Begrenzung einer Ausfahrbewegung der die Verlängerung bildenden Tragarme vorgesehen ist, sowie auch eine Einfahrbewegung in eine Ausgangsstellung zu sichern.Furthermore, it is preferably provided that in each case at a front and / or rear end of the support arm and Tragarmkörpers a stop for limiting an extension movement of the extension forming support arms is provided, as well as to secure a retraction into an initial position.

Der obere und/oder untere Schwenkbolzen weist bevorzugt zumindest einen Schmierkanal auf, der von außen zugänglich ist und zur Lagerstelle führt. Dadurch kann eine einfache Reduzierung der Reibkraft erzielt werden.The upper and / or lower pivot pin preferably has at least one lubrication channel, which is accessible from the outside and leads to the bearing point. As a result, a simple reduction of the frictional force can be achieved.

Der Tragarmkörper weist an einer in Ausziehrichtung des Tragarmstücks vorderen oder hinteren Gehäusewand zumindest eine Rollenführung, insbesondere federgelagerte oder nachgiebige Rollenführung, auf, welche bei einer Lastaufnahme außer Funktion tritt. Dadurch wird die Ein- und Ausfahrbewegung des Tragarmstücks zum Überführen in eine Gebrauchsposition oder zurück in eine Ausgangsstellung erleichtert. Gleichzeitig wird bei der Lastaufnahme sichergestellt, dass eine weitere, den Fangarm verlängernde oder verkürzende Verfahrbewegung des zumindest einen Tragarmstücks verhindert ist.The Tragarmkörper has at a front in the pull-out of the Tragarmstücks or rear housing wall at least one roller guide, in particular spring-loaded or flexible roller guide, which occurs in a load picking function. As a result, the retraction and extension movement of Tragarmstücks for transferring into a use position or back to a starting position is facilitated. At the same time it is ensured in the load, that a further, the tentacle extending or shortening movement of the at least one Tragarmstücks is prevented.

Eine solche Rollenführung ist bevorzugt auch an dem Tragarmstück oder einer Verlängerung des Tragarmstücks vorgesehen, wobei eine Rollenführung an der Verlängerung und eine weitere Rollenführung in dem Tragarmstück gegenläufig angeordnet sind, so dass diese bei einer relativen Verfahrbewegung zueinander unterstützend wirken.Such a roller guide is preferably also provided on the Tragarmstück or an extension of the Tragarmstücks, wherein a roller guide on the extension and a further roller guide in the Tragarmstück are arranged in opposite directions, so that they act to support each other in a relative movement.

Die Erfindung sowie weitere vorteilhafte Ausführungsformen und Weiterbildungen derselben werden im Folgenden anhand der in den Zeichnungen dargestellten Beispiele näher beschrieben und erläutert. Die der Beschreibung und den Zeichnungen zu entnehmenden Merkmale können einzeln für sich oder zu mehreren in beliebiger Kombination erfindungsgemäß angewandt werden. Es zeigen:

  • Figur 1 eine perspektivische Ansicht einer eine Zweisäulen-Hebebühne bildenden Hebevorrichtung,
  • Figur 2 eine perspektivische Ansicht auf einen Träger der Hebevorrichtung mit einem teleskopierbaren Tragarm in einer Ausgangsposition,
  • Figur 3 eine perspektivische Ansicht auf einen Träger der Hebevorrichtung mit einem teleskopierbaren Tragarm in einer Gebrauchsposition,
  • Figur 4 eine perspektivische Ansicht von hinten auf den teleskopierbaren Tragarm in einer Gebrauchsposition gemäß Figur 3,
  • Figur 5 eine schematische Schnittansicht entlang einer Schwenkachse zwischen dem Tragarm und dem Träger und
  • Figur 6 einen schematischen Längsschnitt des telesko-pierbaren Tragarms in einer Ausgangsposition,
  • Figur 7 einen schematischen Längsschnitt des teleskopierbaren Tragarms in einer Gebrauchsposition,
  • Figur 8 eine perspektivische Ansicht einer Zweisäulen-Hebevorrichtung mit einer Fahrschiene,
  • Figur 9 eine schematische Schnittansicht zur Fixierung der Fahrschiene an dem Tragarm der Hebevorrichtung und
  • Figur 10 eine perspektivische Ansicht eines zur Aufnahme eines an die Fahrschiene angepassten Lastaufnahmeelementes am Tragarm.
The invention and further advantageous embodiments and developments thereof are described in more detail below with reference to the examples shown in the drawings and explained. The features to be taken from the description and the drawings can be applied individually according to the invention individually or in combination in any combination. Show it:
  • FIG. 1 a perspective view of a two-column lift forming lifting device,
  • FIG. 2 a perspective view of a support of the lifting device with a telescopic support arm in a starting position,
  • FIG. 3 a perspective view of a support of the lifting device with a telescopic support arm in a use position,
  • FIG. 4 a perspective view from behind the telescopic arm in a position of use according to FIG. 3 .
  • FIG. 5 a schematic sectional view along a pivot axis between the support arm and the carrier and
  • FIG. 6 a schematic longitudinal section of the telescoping support arm in a starting position,
  • FIG. 7 a schematic longitudinal section of the telescopic support arm in a use position,
  • FIG. 8 a perspective view of a two-column lifting device with a rail,
  • FIG. 9 a schematic sectional view for fixing the running rail to the support arm of the lifting device and
  • FIG. 10 a perspective view of an adapted for receiving a rail to the load-receiving element on the support arm.

In Figur 1 ist perspektivisch beispielsweise eine Zweisäulen-Hebebühne 11 dargestellt, welche zwei einander zugeordnete Hebevorrichtungen 12 umfasst. Diese Hebevorrichtung 12 umfasst eine Hubsäule 14, welche beispielsweise mit einer Fußplatte 16 fest verbunden ist, welche ortsfest mit einem Untergrund verbunden ist. Ein Träger 17 ist entlang einer Hubachse 15 der Hebevorrichtung 11 auf und ab bewegbar vorgesehen. Der Träger 17 nimmt ein Lastaufnahmemittel 18 auf. Das Lastaufnahmemittel 18 umfasst einen Gehäuseabschnitt 19, der zumindest teilweise geschlossen ist, an dessen jeweiligen äußeren Enden Tragarme 21 um eine vertikale Schwenkachse 22 schwenkbar aufgenommen sind. Diese Tragarme 21 sind teleskopierbar ausgebildet und weisen der Schwenkachse 22 gegenüberliegend Lastaufnahmeelemente 23 bzw. Vorkehrungen auf, um verschiedene Lastaufnahmeelemente 23 austauschbar darauf anzuordnen.In FIG. 1 For example, a two-post lift 11 is shown in perspective, which comprises two associated lifting devices 12. This lifting device 12 comprises a lifting column 14, which is firmly connected, for example, with a base plate 16 which is fixedly connected to a substrate. A carrier 17 is provided along a lifting axis 15 of the lifting device 11 movable up and down. The carrier 17 receives a load-receiving means 18. The Load-receiving means 18 comprises a housing portion 19 which is at least partially closed, at the respective outer ends of the support arms 21 are pivotally received about a vertical pivot axis 22. These support arms 21 are formed telescopically and have the pivot axis 22 opposite load-receiving elements 23 and provisions to arrange various load-bearing elements 23 interchangeable thereon.

Der Träger 17 nimmt des Weiteren eine Antriebseinrichtung 25 auf. Diese kann elektrohydraulisch, hydraulisch oder mechanisch ausgebildet sein und weist gemäß der dargestellten Ausführungsform ein Hydraulikaggregat auf. Diese Antriebseinrichtung 25 wird von einer Steuerung 26 überwacht und angesteuert. Zur Energieversorgung kann beispielsweise zumindest ein Akkumulator 27 vorgesehen sein. Die Steuerung 26 arbeitet vorteilhafterweise kabellos. Insbesondere kann eine Fernbedienung vorgesehen sein, um die Hebevorrichtungen 12 anzusteuern. Insbesondere kommunizieren auch die beiden einander zugeordneten und gegenüber liegenden Hebevorrichtungen 12 kabellos miteinander, um beispielsweise ein gleichzeitiges Einleiten einer Hebe-und Senkbewegung sowie eine gegenseitige Überwachung eines Gleichlaufes oder dergleichen sicherzustellen. Alternativ können zwischen den zwei Hebevorrichtungen 12 Versorgungsleitungen und/oder Steuerleitungen vorgesehen sein, so dass sowohl Steuersignale als auch eine Stromversorgung kabelgebunden ermöglicht sind.The carrier 17 further receives a drive device 25. This may be formed electro-hydraulically, hydraulically or mechanically and has according to the illustrated embodiment, a hydraulic unit. This drive device 25 is monitored and controlled by a controller 26. For energy supply, for example, at least one accumulator 27 may be provided. The controller 26 operates advantageously wirelessly. In particular, a remote control may be provided to control the lifting devices 12. In particular, the two associated and opposite lifting devices 12 communicate wirelessly with each other to ensure, for example, a simultaneous initiation of a lifting and lowering movement and a mutual monitoring of synchronization or the like. Alternatively, 12 supply lines and / or control lines may be provided between the two lifting devices, so that both control signals and a power supply are made possible by cable.

Der Träger 17 ist hülsen- oder patronenförmig ausgebildet und umschließt die Hubsäule 14. Bei dieser Anordnung ist deshalb vorgesehen, dass die Antriebsspindel oder der Hydraulikzylinder zum Heben und Senken des Trägers 17 innerhalb der Hubsäule 14 angeordnet ist. Der Hydraulikzylinder stützt sich einerseits an einem unteren Ende der Hubsäule 14 bzw. der Fußplatte 16 ab und greift am oberen, inneren Endabschnitt des Trägers 17 an. Zur Führung des Trägers 17 zur Hubsäule 14 sind dazwischenliegend Führungselemente 29 vorgesehen, welche beispielsweise als Rollen- oder Gleitelemente oder als eine Kombination hiervon ausgebildet sein können. Zwischen der Hubsäule 14 und dem Träger 17 ist des Weiteren eine Fallsicherung 32 vorgesehen, durch welche nach dem Ansteuern einer Hubbewegung des Trägers 17 eine Deaktivierung bzw. eine Stromlosschaltung eines Haftmagneten der Fallsicherung erfolgt und ein Verriegelungselement eine Sicherung der eingestellten Hublage vornimmt.The carrier 17 is sleeve-shaped or cartridge-shaped and surrounds the lifting column 14. In this arrangement, it is therefore provided that the drive spindle or the hydraulic cylinder for raising and lowering the carrier 17 is disposed within the lifting column 14. The hydraulic cylinder is supported on the one hand at a lower end of the lifting column 14 and the base plate 16 and engages the upper, inner end portion of the carrier 17. To guide the carrier 17 to the lifting column 14 guide elements 29 are provided therebetween, which may be formed, for example, as a roller or sliding elements or as a combination thereof. Between the lifting column 14th and the carrier 17 is further provided a fall arrester 32, by which after the activation of a lifting movement of the carrier 17, a deactivation or a currentless circuit of a magnet of the fall arrest occurs and a locking element makes a backup of the set stroke position.

Eine alternative Ausgestaltung der Hebevorrichtung 12 sieht vor, dass die Hubsäulen einen U-förmigen Querschnitt aufweisen, innerhalb dem der Träger auf und ab bewegbar geführt ist, wobei der zumindest teilweise geschlossene Gehäuseabschnitt 19 in Analogie zur Hebevorrichtung 12 gemäß Figur 2 an dem Träger 17 angeordnet ist, um die Tragarme 21 aufzunehmen.An alternative embodiment of the lifting device 12 provides that the lifting columns have a U-shaped cross section, within which the carrier is guided movable up and down, wherein the at least partially closed housing portion 19 in analogy to the lifting device 12 according to FIG. 2 is arranged on the carrier 17 to receive the support arms 21.

Eine weitere alternative Ausführungsform der Hebevorrichtung 11 kann darin liegen, dass anstelle der Hubsäule und dem auf und ab bewegbaren Träger ein Hubstempel einer Stempelbühne vorgesehen ist, wobei am oberen Ende des Hubstempels der Träger angeordnet ist, an welchem die Tragarme 21 vorgesehen sind.Another alternative embodiment of the lifting device 11 may be that instead of the lifting column and the carrier movable up and down, a lifting ram of a punching stage is provided, wherein the carrier is arranged at the upper end of the lifting ram on which the support arms 21 are provided.

Des Weiteren kann eine weitere alternative Ausführungsform der Hebevorrichtung 11 vorgesehen sein, bei welcher der auf und ab bewegbare Träger mittels einer Halbschere oder Doppelschere, die wiederum mit einem Hydraulikzylinder betätigt werden, auf und ab bewegt wird, an welchem die Tragarme 21 angeordnet sein können.Furthermore, a further alternative embodiment of the lifting device 11 may be provided, in which the up and down movable carrier by means of a half scissors or double scissors, which in turn are actuated with a hydraulic cylinder, is moved up and down, on which the support arms 21 may be arranged.

Am Träger 17 ist eine Frontabdeckung 34 vorgesehen. Hinter dieser Frontabdeckung 34 ist in dem Gehäuseabschnitt 19 eine Verriegelungseinrichtung 37 vorgesehen, welche an dem Tragarm 21 angreift. Durch diese Verriegelungseinrichtung 37 kann eine eingestellte Schwenkposition des Tragarms 21 fixiert werden, so dass die eingestellte Schwenkposition des Tragarms 21 zu einem Last- oder Stützpunkt an dem Fahrzeug beibehalten bleibt. Die Verriegelungsvorrichtung 37 umfasst eine betätigbare Stelleinrichtung 38, welche gemäß dem Ausführungsbeispiel als ein Hydraulikzylinder 39 ausgebildet ist. Dieser Hydraulikzylinder 39 umfasst eine Kolbenstange 41, deren äußeres Ende an einer Lagerstelle 42 des schwenkbaren Tragarms 21 angreift.On the carrier 17, a front cover 34 is provided. Behind this front cover 34, a locking device 37 is provided in the housing portion 19 which engages the support arm 21. By means of this locking device 37, a set pivoting position of the support arm 21 can be fixed, so that the adjusted pivot position of the support arm 21 is maintained at a load or support point on the vehicle. The locking device 37 comprises an actuatable adjusting device 38, which is designed according to the embodiment as a hydraulic cylinder 39. This hydraulic cylinder 39 comprises a piston rod 41, whose outer end engages a bearing point 42 of the pivotable support arm 21.

Die Stelleinrichtung 38 kann alternativ zum Hydraulikzylinder 39 eine pneumatisch angetriebene oder elektrisch oder elektromagnetisch angetriebene Stelleinrichtung 38 und/oder einen Hubkolben umfassen. Alternativ kann auch ein Linearantrieb vorgesehen sein, der wiederum elektrisch, pneumatisch oder hydraulisch angetrieben sein kann. Eine Stellbewegung oder Verfahrbewegung der Stelleinrichtung 38 kann durch ein Schaltventil oder einen Schaltkontakt angesteuert werden, welcher insbesondere aktiviert wird, wenn der Träger 17 in einer abgesenkten Position auf dem Untergrund aufliegt, um die schwenkbaren Tragarme 21 aus einer Gebrauchsposition, in welcher die Lastaufnahmeelemente 23 den Stützpunkten des Fahrzeugs zugeordnet sind, in eineThe adjusting device 38 may alternatively to the hydraulic cylinder 39 a pneumatically driven or electrically or electromagnetically driven adjusting device 38 and / or comprise a reciprocating piston. Alternatively, a linear drive can be provided, which in turn can be driven electrically, pneumatically or hydraulically. An adjusting movement or movement of the adjusting device 38 can be controlled by a switching valve or a switching contact, which is activated in particular when the carrier 17 rests in a lowered position on the ground to the pivotal support arms 21 from a use position in which the load-bearing elements 23 the Support points of the vehicle are assigned, in one

Nichtgebrauchsposition überzuführen und umgekehrt. In der Nichtgebrauchsposition werden die Tragarme 21 aus dem Fahrbereich des Fahrzeugs herausgeschwenkt, so dass dieses in Einem herausgefahren werden kann. Alternativ kann die Stellbewegung der Stelleinrichtung 38 auch nur über eine Steuerungseinrichtung der Hebevorrichtung 12 angetrieben werden.Convert non-use position and vice versa. In the non-use position, the support arms 21 are pivoted out of the driving range of the vehicle, so that it can be moved out in one. Alternatively, the adjusting movement of the adjusting device 38 can also be driven only via a control device of the lifting device 12.

In Figur 2 ist eine schematisch vergrößerte Ansicht eines Schwenkbereichs zwischen dem Träger 17 und dem schwenkbar dazu angeordneten Tragarm 21 dargestellt, wobei der Tragarm 21 in einer eingefahrenen Position oder Ausgangsposition 45 dargestellt ist.In FIG. 2 is a schematically enlarged view of a pivoting area between the carrier 17 and the pivotally mounted thereto support arm 21 is shown, wherein the support arm 21 is shown in a retracted position or home position 45.

In Figur 3 ist der schwenkbare Tragarm 21 in einer ausgefahrenen Position oder Gebrauchsposition 47 dargestellt.In FIG. 3 the pivotable support arm 21 is shown in an extended position or use position 47.

An dem Träger 17 ist ein oberer und unterer Trägerabschnitt 48, 49 vorgesehen, welche vorzugsweise plattenförmig ausgebildet sind und einen U-förmigen Aufnahmebereich bilden, so dass zwischen dem oberen und unteren Trägerabschnitt 48, 49 der schwenkbare Tragarm 21 gelagert ist. Die Schwenkachse 22 erstreckt sich durch den oberen und unteren Tragarmabschnitt 48, 49 hindurch, als auch durch den Tragarm 21, wobei eine Schwenkanordnung 50 vorgesehen ist, welche ein zweigeteiltes Schwenklager (55, 70) aufweist, so dass der verlängerbare Tragarm 21 die Schwenkachse 22 durchqueren kann, das heißt, dass der schwenkbare Tragarm 21 auch zwischen dem oberen Schwenklager 55 und dem unteren Schwenklager 70 hindurchführbar ist.On the carrier 17, an upper and lower support portion 48, 49 are provided, which are preferably plate-shaped and form a U-shaped receiving area, so that between the upper and lower support portion 48, 49 of the pivotable support arm 21 is mounted. The pivot axis 22 extends through the upper and lower support arm portions 48, 49 therethrough, as well as by the support arm 21, wherein a pivot assembly 50 is provided, which has a two-part pivot bearing (55, 70), so that the extendable support arm 21, the pivot axis 22nd can traverse, that is, that the pivotable support arm 21 can also be passed between the upper pivot bearing 55 and the lower pivot bearing 70.

Der schwenkbare Tragarm 21 umfasst einen Tragarmkörper 52, welcher ein kastenförmiges Gehäuse 53 aufweist. Zwischen dem oberen Trägerabschnitt 49 und einer oberen Gehäusewand 54 des Tragarmkörpers 52 ist das obere Schwenklager 55 gebildet. In Analogie ist zwischen einer unteren Gehäusewand 72 des Tragarmkörpers 52 und dem unteren Trägerabschnitt 49 ein unteres Schwenklager 70 vorgesehen, wobei die beiden Schwenklager 55 und 70 in derselben Schwenkachse 22 liegen, jedoch getrennt voneinander sind. Dadurch wird ein Innenraum in dem kastenförmigen Gehäuse 53 des Tragarmkörpers 52 freigegeben, so dass beispielsweise ein erstes Tragarmstück 58 in dem Gehäuse 53 aufgenommen ist und dieses durchquert. Das erste Tragarmstück 58 ist gegenüber dem Gehäuse 53 vollständig verfahrbar. In dem ersten Tragarmstück 58 kann ein weiteres oder zweites Tragarmstück 59 vorgesehen sein, an dessen äußeren Ende das Lastaufnahmeelement 23 anordenbar ist. Es können auch weitere Tragarmstücke ineinander geschachtelt sein, so dass der längenverstellbare Tragarm 21 teleskopartig ausgebildet ist.The pivotable support arm 21 includes a Tragarmkörper 52, which has a box-shaped housing 53. Between the upper support portion 49 and an upper housing wall 54 of Tragarmkörpers 52, the upper pivot bearing 55 is formed. By analogy, a lower pivot bearing 70 is provided between a lower housing wall 72 of the Tragarmkörpers 52 and the lower support portion 49, wherein the two pivot bearings 55 and 70 are in the same pivot axis 22, but are separated from each other. As a result, an inner space in the box-shaped housing 53 of the Tragarmkörpers 52 is released, so that, for example, a first Tragarmstück 58 is received in the housing 53 and this traverses. The first Tragarmstück 58 is completely movable relative to the housing 53. In the first Tragarmstück 58, a further or second Tragarmstück 59 may be provided, at the outer end of the load-receiving element 23 can be arranged. It is also possible for further support arm pieces to be nested one inside the other so that the length-adjustable support arm 21 is telescopically formed.

In einer Ausgangsposition 45 des schwenkbaren Tragarms 21 sind das erste und zweite Tragarmstück 58, 59 teleskopartig ineinander positioniert und in einer eingefahrenen Position zum Tragarmkörper 52 angeordnet, wie dies in Figur 2 dargestellt ist. Dabei kann der schwenkbare Tragarm 21 bezüglich des Lastaufnahmeelementes 23 auch noch seitlich nach außen geschwenkt werden, so dass ein hinteres Ende des ersten Tragarmstücks 58 auf die Hubsäule 14 zugeschwenkt werden kann, um eine platzsparende Anordnung und kompakte Baueinheit im Nichtgebrauch zu ermöglichen.In an initial position 45 of the pivotable support arm 21, the first and second support arm pieces 58, 59 are telescopically positioned one inside the other and disposed in a retracted position relative to the support arm body 52, as shown in Figs FIG. 2 is shown. In this case, the pivotable support arm 21 with respect to the load-receiving element 23 also still be pivoted laterally outwards, so that a rear end of the first Tragarmstücks 58 can be pivoted to the lifting column 14 to allow a space-saving arrangement and compact unit when not in use.

Bei einem ausgefahrenen Tragarm 21 gemäß Figur 3 ist ein maximaler Schwenkbereich des Tragarms 21 zum Träger 17 gegeben, um die Position zu den jeweiligen Stützpunkten am Fahrzeug einzunehmen.With an extended support arm 21 according to FIG. 3 a maximum pivoting range of the support arm 21 is given to the carrier 17 to take the position to the respective bases on the vehicle.

In Figur 4 ist eine perspektivische Ansicht auf einen teilweise verlängerten Tragarm 21 dargestellt.In FIG. 4 a perspective view is shown on a partially elongated support arm 21.

In Figur 5 ist eine schematische Schnittansicht durch die Schwenkachse 22 der Schwenkanordnung 50 dargestellt.In FIG. 5 is a schematic sectional view through the pivot axis 22 of the pivot assembly 50 is shown.

Das kastenförmige Gehäuse 53 ist bevorzugt aus Blechzuschnitten zusammengesetzt und vorzugsweise miteinander verschweißt, so dass ein quadratischer Innenraum gebildet ist. Eine obere Gehäusewand 54 ist parallel zum oberen Trägerabschnitt 49 ausgerichtet, wobei in der Gehäusewand 54 und im Trägerabschnitt 49 jeweils eine Bohrung 56 eingebracht ist, so dass der obere Schwenkbolzen 61 ein oberes Schwenklager 55 für den Tragarmkörper 52 zum oberen Trägerabschnitt 48 bildet. Dabei kann vorgesehen sein, dass der Schwenkbolzen 61 vom Innenraum in den Tragarmkörper 52 eingesetzt wird, so dass eine Schulter 62 an einer Innenseite der oberen Gehäusewand 54 anliegt und diese hintergreift. Gegenüberliegend ist eine umlaufende Nut 63 in dem Schwenkbolzen 61 vorgesehen, welche sich an den oberen Trägerabschnitten 48 angrenzend erstreckt, so dass eine Schwenkbolzensicherung 64 darin eingreifen kann, um den Schwenkbolzen 61 zum oberen Trägerabschnitt 48 zu fixieren. Dadurch wird der Tragarm 21, insbesondere der Tragarmkörper 52, hängend zum oberen Trägerabschnitt 48 aufgenommen, das heißt, dass zwischen der oberen Gehäusewand 54 und dem oberen Trägerabschnitt 48 bzw. einem oberen Trägerabschnitt 48 zugeordneten Versteifungselement 65 ein geringer Spalt 66 gebildet ist. Durch diese Anordnung kann eine verringerte Reibung des Schwenklagers 55 erzielt werden.The box-shaped housing 53 is preferably composed of sheet metal blanks and preferably welded together, so that a square interior is formed. An upper housing wall 54 is aligned parallel to the upper support portion 49, wherein in the housing wall 54 and the support portion 49 each have a bore 56 is introduced so that the upper pivot pin 61 forms an upper pivot bearing 55 for the Tragarmkörper 52 to the upper support portion 48. It can be provided that the pivot pin 61 is inserted from the interior into the Tragarmkörper 52, so that a shoulder 62 rests against an inner side of the upper housing wall 54 and engages behind this. Opposite a circumferential groove 63 is provided in the pivot pin 61, which extends adjacent to the upper support portions 48, so that a pivot pin fuse 64 can engage therein to fix the pivot pin 61 to the upper support portion 48. Thereby, the support arm 21, in particular the Tragarmkörper 52, added to the upper support portion 48, that is, that between the upper housing wall 54 and the upper support portion 48 and an upper support portion 48 associated stiffening element 65, a small gap 66 is formed. By this arrangement, a reduced friction of the pivot bearing 55 can be achieved.

In dem oberen Schwenkbolzen 61 ist bevorzugt eine Schmiermittelzufuhr 67 vorgesehen, das heißt, dass von außen Schmiermittel eingebracht werden kann, so dass dieses durch einen axialen und zumindest einen radialen Kanal bis zu dem Bereich der Lagerstelle zwischen der oberen Gehäusewand 54 und der Schulter 62 des Schwenkbolzens 61 zugeführt werden kann.In the upper pivot pin 61, a lubricant supply 67 is preferably provided, that is, that from the outside lubricant can be introduced so that this by an axial and at least one radial channel up to the region of the bearing between the upper housing wall 54 and the shoulder 62 of Swivel pin 61 can be supplied.

Die Schwenkbolzensicherung 64 ist bevorzugt ebenfalls als plattenförmiges Blechteil ausgebildet, welches auf dem oberen Trägerabschnitt 48 einen U-förmigem Halteabschnitt 68 aufweist, der in die Nut 63 eingreift. Zu Befestigung der Schwenkbolzensicherung 64 kann eine Verschraubung vorgesehen sein, wie dies in Figur 4 dargestellt ist.The pivot bolt safety 64 is preferably also designed as a plate-shaped sheet-metal part, which has a U-shaped holding portion 68 on the upper support portion 48, which engages in the groove 63. For fastening the pivot bolt safety 64 may be provided a screw, as in FIG. 4 is shown.

Der Tragarmkörper 52 ist mit einem unteren Schwenkbolzen 71 zum unteren Trägerabschnitt 49 drehbar gelagert, wobei der Schwenkbolzen 71 auch von innen in den Tragarmkörper 52 einsetzbar sein kann und sich durch eine Bohrung 56 in der unteren Gehäusewand 72 und eine komplementäre Bohrung 56 im unteren Trägerabschnitt 49 erstreckt. Dieser Schwenkbolzen 71 weist wiederum eine Schulter 62 auf, welche an der Innenseite der unteren Gehäusewand 72 anliegt. Der Schwenkbolzen 71 ist zylindrisch ausgebildet und dient als Führung des Tragarmkörpers 52 zum unteren Trägerabschnitt 49. Zur Sicherung des unteren Schwenkbolzens 71 kann beispielsweise eine Verschraubung 73 vorgesehen sein. Ebenso kann dieser untere Schwenkbolzen 71 eine Schmiermittelzufuhr 67 aufweisen. Bevorzugt ist eine Unterseite des Schwenkbolzens 71 bündig zu einer Unterseite 74 des unteren Trägerabschnitts 49 vorgesehen, so dass diese Unterseite 74 des unteren Trägerabschnitts 49 zusammen mit dem Träger 17 auf dem Boden oder Untergrund aufliegen kann.The Tragarmkörper 52 is connected to a lower pivot pin 71 for the lower support portion 49 rotatably mounted, wherein the pivot pin 71 may be inserted from the inside into the Tragarmkörper 52 and extends through a bore 56 in the lower housing wall 72 and a complementary bore 56 in the lower support portion 49. This pivot pin 71 in turn has a shoulder 62 which bears against the inside of the lower housing wall 72. The pivot pin 71 is cylindrical and serves as a guide of Tragarmkörpers 52 to the lower support portion 49. To secure the lower pivot pin 71, for example, a screw 73 may be provided. Likewise, this lower pivot pin 71 may have a lubricant supply 67. Preferably, a bottom of the pivot pin 71 is provided flush with a bottom 74 of the lower support portion 49, so that this bottom 74 of the lower support portion 49 can rest together with the support 17 on the ground or ground.

Durch die hängende Aufnahme des Tragarmkörpers 52 zum oberen Trägerabschnitt 48 kann das untere Schwenklager 70 vereinfacht ausgebildet sein, so dass dieses lediglich zur Sicherung des Tragarmkörpers 52 zur schwenkbaren Anordnung um die Schwenkachse 22 dient, das heißt, zwischen der unteren Gehäusewand 72 und dem unteren Trägerabschnitt 49 ist ebenfalls ein Spalt vorgesehen, wodurch die Reibung wiederum verringert ist.Due to the suspended receiving the Tragarmkörpers 52 to the upper support portion 48, the lower pivot bearing 70 may be simplified so that it serves only for securing the Tragarmkörpers 52 for pivotal arrangement about the pivot axis 22, that is, between the lower housing wall 72 and the lower support portion 49 is also provided a gap, whereby the friction is in turn reduced.

Bevorzugt sind die beiden Schwenkbolzen 61, 71 im Durchmesser gleich ausgebildet, wodurch auch eine vereinfachte Herstellung des Tragarmkörpers 52 hinsichtlich der oberen und unteren Gehäusewand 54, 72 ermöglicht ist. Alternativ kann der obere Schwenkbolzen auch größer ausgebildet sein.Preferably, the two pivot pins 61, 71 have the same diameter, whereby a simplified production of Tragarmkörpers 52 with respect to the upper and lower housing wall 54, 72 is made possible. Alternatively, the upper pivot pin can also be made larger.

Zur Führung des ersten Tragarmstücks 58 in dem Tragarmkörper 52 sind vorzugsweise an jeder Gehäusewand 54, 72, 75, 76 Führungs- und/oder Gleitelemente 77 vorgesehen. Dadurch wird ein vorzugsweise ebenfalls kastenförmig ausgebildetes Gehäuse 53 des ersten Tragarmstücks 58 zentrisch zum Tragarmkörper 52 aufgenommen und geführt, so dass ein oberer Wandabschnitt 79 und unterer Wandabschnitt 80 des ersten Tragarmstücks 58 an der Schulter 62 des oberen Schwenkbolzens 61 sowie an der Schulter 62 des unteren Schwenkbolzens 71 vorbeigeführt werden kann, um eine Gebrauchsposition 47 gemäß Figur 2 einnehmen zu können.To guide the first Tragarmstücks 58 in the support arm 52 are preferably on each housing wall 54, 72, 75, 76 guide and / or sliding elements 77 are provided. Thereby, a preferably also box-shaped housing 53 of the first Tragarmstücks 58 is centrally received and guided to Tragarmkörper 52, so that an upper wall portion 79 and lower wall portion 80 of the first Tragarmstücks 58 on the shoulder 62 of the upper pivot pin 61 and the shoulder 62 of the lower pivot pin 71 can be passed to a use position 47 according to FIG. 2 to be able to take.

In Figur 6 ist ein Längsschnitt des schwenkbaren Tragarms 21 in der Ausgangsposition 45 gemäß Figur 2 dargestellt.In FIG. 6 is a longitudinal section of the pivotable support arm 21 in the home position 45 according to FIG. 2 shown.

Die Figur 7 zeigt einen Längsschnitt des schwenkbaren Tragarms 21 in einer Gebrauchsposition 47 gemäß Figur 3. Dieser längenverstellbare Tragarm 21 umfasst den Tragarmkörper 52, das erste Tragarmstück 58 und das zweite Tragarmstück 59, an dessen äußerem Ende das Lastaufnahmeelement 23 einsetzbar ist. Es versteht sich, dass auch mehrere Tragarmstücke 58, 59 vorgesehen sein können.The FIG. 7 shows a longitudinal section of the pivotable support arm 21 in a use position 47 according to FIG. 3 , This length-adjustable support arm 21 includes the Tragarmkörper 52, the first Tragarmstück 58 and the second Tragarmstück 59, at the outer end of the load-receiving element 23 is used. It is understood that a plurality of Tragarmstücke 58, 59 may be provided.

Aus Figur 7 ist zusätzlich zu den Führungs- und/oder Gleitelementen 77 zur erleichterten verschiebbaren Anordnung des ersten Tragarmstücks 58 zum Tragarmkörper 52 eine Rollenführung 83 vorgesehen, welche an einem vorderen Ende angeordnet ist, gegenüber welchem das zweite Tragarmstück 59 zum ersten Tragarmstück 58 ausziehbar ist. Das zweite Tragarmstück 59 weist vorteilhafterweise ebenso eine solche Rollenführung 83 auf, welche jedoch an einem innenliegenden oberen oder hinteren oberen Ende vorgesehen ist. Dadurch ist ein erleichtertes Ausziehen des zweiten Tragarmstücks 59 zum ersten Tragarmstück 58 ermöglicht, wie dies beim Vergleich der Figuren 6 und 7 deutlich wird.Out FIG. 7 in addition to the guiding and / or sliding elements 77 for facilitated displaceable arrangement of the first Tragarmstücks 58 to Tragarmkörper 52 a roller guide 83 is provided, which is arranged at a front end against which the second Tragarmstück 59 to the first Tragarmstück 58 is extendable. The second Tragarmstück 59 advantageously also has such a roller guide 83, which, however, is provided at an inner upper or rear upper end. As a result, a simplified extension of the second Tragarmstücks 59 to the first Tragarmstück 58 is possible, as compared to the FIGS. 6 and 7 becomes clear.

Am Tragarmkörper 52 kann bezüglich der Ausziehrichtung der Tragarmstücke 58, 59 ebenfalls eine solche Rollenführung 83 vorgesehen sein. Diese Rollenführungen 83 wirken beim Ein- und Ausfahren der Tragarmstücke 58, 59 unterstützend, sofern keine Last auf das Lastaufnahmeelement 23 wirkt. Sobald das Lastaufnahmeelement 23 an einem Stützpunkt des Fahrzeugs angreift, werden diese Rollenführungen 83, die eine nachgiebige Lagerung oder Federlagerung aufweisen, belastet, so dass die Tragarmstücke 58, 59 zueinander, sowie das Tragarmstück 58 zum Tragarmkörper 52 eine fest aneinanderliegende Anordnung einnehmen.The support arm body 52 may also be provided with such a roller guide 83 with respect to the withdrawal direction of the support arm pieces 58, 59. These roller guides 83 act during the extension and retraction of Tragarmstücke 58, 59 supportive, provided that no load on the load-receiving element 23 acts. As soon as the load-bearing element 23 engages at a support point of the vehicle, these roller guides 83, which have a resilient mounting or spring mounting, are loaded, so that the support arm pieces 58, 59 to each other, and the Tragarmstück 58 to Tragarmkörper 52 occupy a firmly juxtaposed arrangement.

Aus dem Längsschnitt des verlängerbaren Tragarms 21 durch die Schwenkachse 22 wird offensichtlich, dass zumindest das erste Tragarmstück 48 die Schenkachse 22 durchquert. Somit kann eine kompakte Bauweise geschaffen werden, bei welcher auch die Hebelverhältnisse zwischen dem Träger 17 und der schwenkbaren Aufnahme des Tragarms 21 gering gehalten werden kann.From the longitudinal section of the extendable support arm 21 through the Pivot shaft 22 is apparent that at least the first Tragarmstück 48 passes through the Schenkachse 22. Thus, a compact design can be created, in which the leverage ratios between the carrier 17 and the pivotal receptacle of the support arm 21 can be kept low.

Die Ein- und Ausfahrbewegung des ersten und zweiten Tragarmstücks 58, 59 sind durch jeweilige Anschläge 84 begrenzt. Beispielsweise ist an dem ersten Tragarmstück 58 an einem hinteren oberen Ende ein Anschlag 84 vorgesehen, welcher in einer ausgezogenen Position des ersten Tragarmstücks 58 durch die Schulter 62 des Schwenkbolzens 61 begrenzt ist. Eine Einfahrbewegung des ersten Tragarmstücks 58 zum Tragarmkörper 52 ist beispielsweise durch die an der Seitenwand 75 vorgesehenen Anschläge 84 (Figur 3) begrenzt. Die Ausziehbewegung des zweiten Tragarmstücks 49 wird durch den beispielsweise als Schraube dargestellten Anschlag 84 in der Seitenwand 75 des ersten Tragarmstücks 58 begrenzt.The retraction and extension of the first and second Tragarmstücks 58, 59 are limited by respective stops 84. For example, a stop 84 is provided on the first Tragarmstück 58 at a rear upper end, which is limited in an extended position of the first Tragarmstücks 58 through the shoulder 62 of the pivot pin 61. A retraction movement of the first Tragarmstücks 58 to Tragarmkörper 52 is provided for example by the provided on the side wall 75 stops 84 (FIG. FIG. 3 ) limited. The extension movement of the second Tragarmstücks 49 is limited by the example shown as a screw stop 84 in the side wall 75 of the first Tragarmstücks 58.

In Figur 8 ist ein Anwendungsbeispiel einer Zweisäulen-Hebebühne 11 dargestellt, bei welcher die Tragarme 21 jeweils einer Hebevorrichtung 12 eine Fahrschiene 86 aufnehmen. Der Tragarm 21 umfasst bei dieser Ausführungsform beispielsweise einen Tragarmgrundkörper 52 sowie ein darin verschiebbar aufgenommenes erstes Tragarmstück 58. Die beiden Tragarme 21 sind parallel zueinander ausgerichtet und nehmen über deren Lastaufnahmeelemente 23 Führungsschiene 86 auf. Aufgrund der Ausgestaltung des Tragarmes 21 gemäß beispielsweise einem ersten Tragarmstück 58 kann der Abstand der einander gegenüberliegenden Fahrschienen 86 auf eine Spurbreite eines zu hebenden Fahrzeuges in einfacher Weise einstellbar sein. Der Tragarm 21 kann alternativ auch zwei oder mehrere Tragarmstücke umfassen. Ebenso ist möglich, dass unmittelbar an dem Tragarmkörper 52 das Lastaufnahmeelement 23 befestigt ist.In FIG. 8 an application example of a two-post lift 11 is shown, in which the support arms 21 each receive a lifting device 12 a rail 86. The support arm 21 in this embodiment comprises, for example, a Tragarmgrundkörper 52 and a slidably received therein first Tragarmstück 58. The two support arms 21 are aligned parallel to each other and take on the load receiving elements 23 guide rail 86 on. Due to the configuration of the support arm 21 according to, for example, a first Tragarmstück 58, the distance between the opposing rails 86 can be adjusted to a track width of a vehicle to be lifted in a simple manner. The support arm 21 may alternatively comprise two or more Tragarmstücke. It is also possible that directly to the Tragarmkörper 52, the load-receiving element 23 is attached.

Im Übrigen kann auch zur Aufnahme einer Fahrschiene 86 eine der vorbeschriebenen Ausführungsformen für eine Hebevorrichtung 12 eingesetzt werden.Incidentally, one of the above-described embodiments for a lifting device 12 can also be used for receiving a running rail 86.

Die Figur 9 zeigt eine schematische Seitenansicht des Tragarms 21 und der daran angeordneten Fahrschiene 86. Eine konstruktive einfache Aufnahme ist dadurch gegeben, in dem das Lastaufnahmeelement 23, wie dies in Figur 10 dargestellt ist, einen verlängerten Lastarm 87 umfasst, der ermöglicht, dass eine Auffahrfläche 88 der Fahrschiene 86 untergriffen werden kann. Der Lastraum 87 erstreckt sich vollständig über die Breite der Auffahrfläche 88 oder im Wesentlichen über die Breite der Auffahrfläche 88. Die dargestellte Ausführungsform der Fahrschiene 86 weist beispielsweise einen omegaförmigen Querschnitt auf und ist vorteilhafterweise als ein Blechbiegeteil ausgebildet, so dass in einfacher Weise der Lastarm 87 in Öffnungen 89 an der seitlichen Wange 90 durchführbar ist und an der gegenüberliegenden Wange 90 mittels einer Befestigungsplatte und einem Befestigungsmittel 93 fixiert ist. Bei einem alternativen konstruktiven Aufbau einer Führungsschiene 86 kann das Lastaufnahmeelement 23 auch an einer Unterseite der Fahrschiene 86 angreifen.The FIG. 9 shows a schematic side view of the support arm 21 and the rail 86 arranged thereon. A constructive simple recording is given by the load receiving element 23, as shown in FIG FIG. 10 is shown, an extended load arm 87 includes, which allows that a ride-up surface 88 of the running rail 86 can be engaged. The load space 87 extends completely over the width of the ramp surface 88 or substantially across the width of the ramp surface 88. The illustrated embodiment of the rail 86 has, for example, an omega-shaped cross-section and is advantageously designed as a bent sheet metal part, so that in a simple way the load arm 87th in openings 89 on the side cheek 90 can be performed and is fixed to the opposite cheek 90 by means of a mounting plate and a fastening means 93. In an alternative structural design of a guide rail 86, the load-receiving element 23 can also act on an underside of the running rail 86.

Zur definierten Aufnahme der Führungsschiene 86 ist das Lastaufnahmeelement 23 derart angepasst, dass eine erste Anlagefläche 91 (Figur 10) am stirnseitigen Ende des Lastarmes 87 vom Lastaufnahmeelement 23 vorgesehen ist, welche an die Neigung der seitlichen Wange 90 angepasst ist. Am zum Tragarm 21 weisenden Ende des Lastaufnahmeelementes 23 ist eine zweite Anlagefläche 92 vorgesehen, welche an einer Außenseite der seitlichen Wange 90 angreift, so dass durch eine solche Anordnung eine definierte Anlage und Positionierung der Fahrschiene 86 zum Tragarm 21 über die Auflageflächen 91 und 92 ermöglicht ist.For defined reception of the guide rail 86, the load-receiving element 23 is adapted such that a first contact surface 91 (FIG. FIG. 10 ) is provided at the front end of the load arm 87 of the load-receiving element 23, which is adapted to the inclination of the lateral cheek 90. At the end facing the support arm 21 of the load-receiving element 23, a second contact surface 92 is provided, which acts on an outer side of the side cheek 90, so that by such an arrangement a defined system and positioning of the rail 86 to support arm 21 on the support surfaces 91 and 92 allows is.

Die in Figur 8 dargestellte Zweisäulenhebebühne 11 nimmt eine Fahrschiene 86 auf, die zum Heben und Senken von beispielsweise Personenfahrzeugen oder Transportern vorgesehen ist. Sofern längere Fahrzeuge angehoben werden sollen, kann beispielsweise auch eine Viersäulen-Hebebühne vorgesehen sein, bei welcher zwei Hebevorrichtungen 12 im Abstand zueinander mit deren Tragarmen 21 an einer langen Fahrschiene 86 angreifen.In the FIG. 8 shown two-post lift 11 takes on a rail 86, which is provided for lifting and lowering of, for example, passenger cars or vans. If longer vehicles are to be raised, for example, a four-pillar lift may be provided, in which two lifting devices 12 at a distance to each other with their support arms 21 on a long rail 86 attack.

Durch die Ausgestaltung des Tragarms 21, der schwenkbar zum Träger 17 angeordnet ist, und beispielsweise ein erstes Tragarmstück 58 verschiebbar im Tragarmkörper 52 aufnimmt, ist auch ermöglicht, dass unterschiedliche Tragarmstücke 58 mit voneinander abweichend ausgebildeten Lastaufnahmeelementen 23 verwendet werden können, um eine schnelle und einfache Umrüstung der Hebevorrichtung 12 auf verschiedene Anwendungsfälle zu ermöglichen. So kann beispielsweise anstelle des teleskopierbaren Tragarms 21 gemäß Figur 1 bei Verwendung eines Tragarms 21 gemäß Figur 10, eine einfache Umrüstung auf eine Zweisäulen-Fahrschienenhebebühne ermöglicht sein.Due to the design of the support arm 21, which is pivotally mounted to the carrier 17, and for example, a first Tragarmstück 58 slidably receives in Tragarmkörper 52, is also possible that different Tragarmstücke 58 can be used with differing trained load-receiving elements 23 to a quick and easy Conversion of the lifting device 12 to allow for different applications. For example, instead of the telescopic support arm 21 according to FIG. 1 when using a support arm 21 according to FIG. 10 , a simple conversion to a two-pillar rail lift be enabled.

Claims (15)

  1. Lifting device for lifting and lowering vehicles, having a support (17) which is movable up and down, on which at least one longitudinally adjustable support arm (21) is mounted to be pivotable around a pivot axis (22) on the support (17) and a free end of the support arm (21) is movable under the vehicle with respect to the support point of the vehicle, wherein the longitudinally adjustable support arm (21) has a support arm body (52) which receives at least one support arm piece (58, 59) which forms an extension in an extractable manner, characterised in that the support (17) comprises an upper and lower support section (48, 49) with respect to which the support arm body (52) is mounted rotatably using a pivot arrangement (50) which is formed by an upper and lower pivot bearing (55, 70) which releases an inner space of the support arm body (52) for at least one support arm piece (58, 59) which is positionable therein.
  2. Lifting device according to claim 1, characterised in that the upper and lower pivot bearing (55, 70) lie in a mutual pivot axis (22) which extends through the inner space of the support arm body (52).
  3. Lifting device according to claim 1 or 2, characterised in that at least one pivot bearing (55, 70) is formed as a pivot pin (61, 71) and the pivot axis (22) which is formed by the pivot pin (61, 71) is interrupted between the support (17) and the support arm body (52) in the inner space of the support arm body (52).
  4. Lifting device according to one of the preceding claims, characterised in that the upper pivot bearing (55) is formed by an upper pivot pin (61) and the support arm body (52) is mounted to be hanging with respect to the upper support section (48) using the upper pivot pin (61).
  5. Lifting device according to one of the preceding claims, characterised in that the further pivot bearing (70) is formed by a further pivot pin (71) and the support arm body (52) is guided to be aligned to the pivot axis (28) on the lower support section (49) using the lower pivot pin (71).
  6. Lifting device according to one of the preceding claims, characterised in that the support arm body (52) has a box-shaped housing (63) which has a bore (56) on an upper housing wall (54) with which the upper pivot pin (61) engages to receive the support arm body (52) and the upper housing wall (54) having a shoulder (62) engages behind in the inner space of the support arm body (52).
  7. Lifting device according to one of the preceding claims, characterised in that the upper pivot pin (61) has a groove (63) which is arranged above an upper side of the upper support section (48), with which a pivot pin retainer (64) engages.
  8. Lifting device according to claim 7, characterised in that the pivot pin retainer (64) is formed to be plate-shaped, which has a U-shaped retaining section (68) which engages with the groove (63) of the upper pivot pin (61).
  9. Lifting device according to one of the preceding claims, characterised in that the upper and lower pivot pins (61, 71) are each insertable from the inner space of the support arm body (72) or from outside or optionally from inside and/or from outside into the bore (56) on the upper and lower housing wall (54, 52) of the support arm body (52) and into a corresponding bore (56) in the upper and lower support section (48, 49).
  10. Lifting device according to one of the preceding claims, characterised in that at least one guide and/or sliding element (77) is provided on at least two opposite housing walls (54, 72, 75, 76), preferably on each housing wall (54, 72, 75, 76) of the support arm body (52), by which the first support arm piece (58) is guided traversably in the support arm body (52).
  11. Lifting device according to one of the preceding claims, characterised in that several support arm pieces (58, 59) are arranged telescopically in the support arm body (52).
  12. Lifting device according to one of the preceding claims, characterised in that a stop (84) to limit the extension path and/or the retraction path of the support arm pieces (58, 59) is provided on each of a front and rear end or region of the support arm piece (58, 59).
  13. Lifting device according to one of the preceding claims, characterised in that the pivot pins (61, 71) have at least one lubricant supply (77) which are accessible from the outside and comprise at least one lubricant channel which leads to the bearing surface, in particular bellows (56).
  14. Lifting device according to one of the preceding claims, characterised in that the support arm body (52) has a roller guide (83) on a lower housing wall (72) which is to the front in the extraction direction of the support arm piece (58, 59).
  15. Lifting device according to one of the preceding claims, characterised in that at least one roller guide (83) is provided on each support arm piece (58, 59), said roller guide supporting a retraction and extension movement and being rendered inoperative in the case of load receiving.
EP14736693.4A 2013-06-27 2014-06-27 Device for lifting vehicles Active EP3013729B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202013102803.7U DE202013102803U1 (en) 2013-06-27 2013-06-27 Lifting device for lifting and lowering vehicles
PCT/EP2014/063732 WO2014207217A1 (en) 2013-06-27 2014-06-27 Lifting apparatus for vehicles

Publications (2)

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EP3013729A1 EP3013729A1 (en) 2016-05-04
EP3013729B1 true EP3013729B1 (en) 2017-06-07

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EP14726364.4A Active EP3013728B1 (en) 2013-06-27 2014-05-26 Lifting device for lifting and lowering vehicles
EP14736694.2A Active EP3013730B1 (en) 2013-06-27 2014-06-27 Lifting device for lifting and lowering vehicles, loads or the like
EP14736693.4A Active EP3013729B1 (en) 2013-06-27 2014-06-27 Device for lifting vehicles

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EP14736694.2A Active EP3013730B1 (en) 2013-06-27 2014-06-27 Lifting device for lifting and lowering vehicles, loads or the like

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US (3) US10077178B2 (en)
EP (3) EP3013728B1 (en)
KR (2) KR102271795B1 (en)
CN (3) CN105517945B (en)
DE (1) DE202013102803U1 (en)
WO (3) WO2014206668A1 (en)

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Also Published As

Publication number Publication date
CN105517945A (en) 2016-04-20
CN105452149A (en) 2016-03-30
WO2014207218A1 (en) 2014-12-31
US9701526B2 (en) 2017-07-11
WO2014206668A1 (en) 2014-12-31
CN105307969B (en) 2018-02-13
DE202013102803U1 (en) 2014-09-29
US20160145085A1 (en) 2016-05-26
KR20160024950A (en) 2016-03-07
WO2014207217A1 (en) 2014-12-31
EP3013728B1 (en) 2018-05-16
CN105452149B (en) 2018-04-06
US20160137470A1 (en) 2016-05-19
EP3013729A1 (en) 2016-05-04
CN105307969A (en) 2016-02-03
EP3013730B1 (en) 2017-10-18
US10077178B2 (en) 2018-09-18
KR20160024951A (en) 2016-03-07
US20160122168A1 (en) 2016-05-05
EP3013728A1 (en) 2016-05-04
US9714160B2 (en) 2017-07-25
KR102243716B1 (en) 2021-04-26
KR102271795B1 (en) 2021-07-02
CN105517945B (en) 2018-08-31
EP3013730A1 (en) 2016-05-04

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