EP2016017A1 - Supporting arm for a lifting platform - Google Patents

Supporting arm for a lifting platform

Info

Publication number
EP2016017A1
EP2016017A1 EP07711162A EP07711162A EP2016017A1 EP 2016017 A1 EP2016017 A1 EP 2016017A1 EP 07711162 A EP07711162 A EP 07711162A EP 07711162 A EP07711162 A EP 07711162A EP 2016017 A1 EP2016017 A1 EP 2016017A1
Authority
EP
European Patent Office
Prior art keywords
arm
support
receiving
bearing
hollow profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07711162A
Other languages
German (de)
French (fr)
Other versions
EP2016017B1 (en
Inventor
Jürgen GROTZ
Winfried Schmitt
Thomas Deuring
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maha Maschinenbau Haldenwang GmbH and Co KG
Maha GmbH and Co KG
Original Assignee
Maha Maschinenbau Haldenwang GmbH and Co KG
Maha GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maha Maschinenbau Haldenwang GmbH and Co KG, Maha GmbH and Co KG filed Critical Maha Maschinenbau Haldenwang GmbH and Co KG
Publication of EP2016017A1 publication Critical patent/EP2016017A1/en
Application granted granted Critical
Publication of EP2016017B1 publication Critical patent/EP2016017B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

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

Definitions

  • the invention relates to a support arm for a lifting platform, in particular a stand or pillar lifting platform, with at least one wider receiving arm and one extending arm telescopically displaceable therein, each consisting of torsionally and rigid tubular profiles, a supporting bearing being provided at the rear end of the receiving arm, by means of which the support arm is articulated in a horizontally pivotable manner on the lifting slide of a column, and a support foot is fastened to the free end of the inner extension arm, on which various support elements can be arranged and fastened.
  • Support arms of this type are known in particular in connection with so-called stand lifting platforms for motor vehicles.
  • Two support arms are each articulated on the lifting carriage of a column via sufficiently rigid bearing arrangements so that each support arm can be pivoted individually in the horizontal plane.
  • the suitable support or support elements can be positioned in the prescribed positions under the vehicle floor, not only is it necessary to pivot the respective support arms, but they must also be adjustable in length, which is achieved by a telescopic design of each support arm.
  • a support arm consists of an inner holding arm and a pull-out arm which is coaxial therewith and which is accommodated in a longitudinally displaceable manner in the holding arm articulated on the rear of the lifting slide.
  • the support arms Since the freely cantilevered telescopic arms transfer the load of a motor vehicle to be lifted via the support bearing in the lifting slide and thus into the column, the support arms must have a sufficiently high torsional and bending stiffness in order to ensure secure support and support even when fully extended to ensure the overlying motor vehicle.
  • the object of the invention is to provide a support arm for a lifting platform, which can be produced inexpensively and in almost any size and shape with relatively little effort.
  • At least the receiving arm is formed from a steel plate blank to form the hollow profile and has at least one transverse stiffener.
  • the support arms according to the invention can be manufactured much more cost-effectively than the support arms consisting of extruded profiles.
  • the support arms according to the invention can be produced in a wide variety of variants and profile cross sections by relatively simple shaping processes, which was not possible with conventional support arms because of the binding to predetermined cross sections of the extruded profile used in each case.
  • hot or cold-rolled steel sheets of suitable wall thickness in the range from 5.0 to 12.0 mm are used as the starting material. Blanks of a suitable shape are cut out of these steel sheets, which is preferably done by laser cutting. On technically simple and effective bending machines, these flat sheet metal blanks are turned into round or square Hollow sections cold formed.
  • the cross sections of the respective holding arms and the associated pull-out arms are selected such that the respective pull-out arm can be moved axially and with relatively little transverse play in the holding arm.
  • each support arm i.e. the receiving arm and the extension arm
  • the two arm parts of each support arm can also have circular or other rounded cross sections
  • the wider receiving arm has a square hollow profile and preferably has a continuous longitudinal slot of a predetermined width on its underside. Thanks to the square hollow profile, the extension arm is secured against rotation in the wider holding arm.
  • each longitudinally slotted hollow profile of a wider receiving arm and also of a pull-out arm displaceable therein is provided with at least one cross-bracing, which can be designed in different ways. If the longitudinal slots of the respective arm have only a relatively small width, point or seam-shaped welded connections of the edges can be expedient.
  • the positive connection of the two bent-in longitudinal edges delimiting the longitudinal slot leads to a high torsional and bending stiffness of the respective support arm part, which is comparable to that of a conventional extruded hollow profile.
  • Manufacturing-related and functional advantages offer cross stiffeners designed as brackets, which preferably cover the longitudinal slot in the free end part of the respective receiving arm and permanently, e.g. by welding.
  • the support bearing provided at the inner end of the receiving arm consists of several structurally simple individual parts, which are simple Cutting and bending processes can be produced inexpensively and are firmly connected to one another, in particular welded, to form a stable support bearing construction.
  • the end-side support bearing on the receiving arm expediently has a cross plate permanently fastened to the end edges of the hollow profile and two bearing plates arranged at a transverse spacing at the arm end, in the mutually aligned bores of which a pin formed on the lifting slide engages.
  • a bent, longitudinally oriented bearing plate is expediently fastened on the upper side of the receiving arm, which is, for example, welded or otherwise firmly connected to the transverse plate and has the bearing bore in its projecting end part.
  • the pull-out arm is also expediently designed as a square hollow profile with a longitudinal slot on the underside and carries at its inner insertion end a transverse plate which has a slight play to the underside of the receiving arm.
  • a support plate is secured by two cross plates, each with welded connections.
  • the support arms can also be designed with multiple telescopes, i.e.
  • they In addition to the inner receiving arm and the outer pull-out arm, they have a central arm part which is displaceably guided on the one hand in the receiving part and on the other hand serves for the longitudinally displaceable receiving of the pull-out arm.
  • This middle arm part also consists of an edge profile produced by bending a flat sheet metal blank with a continuous longitudinal slot and transverse reinforcement.
  • Figure 1 schematically shows the pillar of a motor vehicle pillar lift in a perspective view.
  • 2 shows the detail A in Fig. 1 in an enlarged perspective view,
  • Fig. 5 shows a variant of the support arm shown in Fig. 3 a to e.
  • Fig. 6 shows a variant of the support arm shown in Fig. 4a to e.
  • the column 1 shown in FIG. 1 belongs to a double-column lifting platform for motor vehicles, but can also be part of a so-called four-column lifting platform.
  • a base plate 3 is fastened to the rigid and stable column body 2, which is designed as a flat steel structure or as an extruded light metal profi, which e.g. is firmly anchored in the foundation by means of bolts.
  • a threaded spindle is arranged within the cladding of the column 1, which runs in the lower and upper pivot bearings and carries a nut which is connected to an assembly referred to as a lifting slide 5.
  • the upper end of the threaded spindle is connected to the output shaft of an electric motor 4, which drives the threaded spindle, so that the nut mounted thereon carries out lifting and lowering movements.
  • a support bearing arrangement 6 is mounted on the liftable and lowerable lifting slide 5, each of which has a support bearing 7, 8 for a horizontal support arm 9, 10 each.
  • the two support arms 9, 10 are of identical design, so that only one of the two support arms 9, 10 used on each column 1 is described below.
  • a support arm 9 is shown in perspective (a), in axial longitudinal section (b), in plan view (c), in side view (d) and in an enlarged section (Z in b).
  • the support arm 9 shown is shorter than the support arms 8, 9 in Fig. 2, but structurally identical to these support arm designs.
  • the main arm 9 has a main arm 11 and an extension arm 12, both of which consist of a square steel profile and have a continuous longitudinal slot on their underside, as can be seen from Fig. 3e.
  • Both arms 11, 12 are formed from cold or hot rolled flat material, preferably a steel sheet, which has thicknesses of ⁇ 5 mm to> 12 mm.
  • the receiving arm 11 has at its front end section a bracket 13 formed from sheet steel, which - as can be seen from FIG. 3e - covers the longitudinal slot 14 formed in the underside.
  • the stiffening member 13 has a C-shaped cross-section and is permanent on the outer wall of the receiving arm 11, e.g. fixed by welds 15.
  • the support bearing 7 contains an upper double-angled bearing plate 17, which has the same width as the receiving arm 11, and is produced, for example, by laser cutting from a sufficiently stable sheet steel blank.
  • the elongated bearing plate 17 has a double angled shape and consists of a rear semicircular section 18, which is fastened, for example welded, to the top of the receiving arm 11, an obliquely rising central part 19 and an end part aligned parallel to the longitudinal axis 23 of the receiving arm 11 20, in which a bore 21 for receiving a bearing journal 22 (FIG. 2) is formed.
  • a transverse plate 24 extending perpendicular to the longitudinal axis 23 of the receiving arm is permanently fixed, for example by welding, the upper edge of which is attached to the underside of the tab-like projecting end part 20 of the bearing plate 17.
  • a further plate 25 is permanently fixed in the lower third of the cross plate 24, for example by welding, in which one with the Bore 21 aligned bearing bore 26 for receiving the bearing pin 22 (Fig. 2) is formed.
  • the extension arm 12 also consists of a square hollow profile, as can be seen from FIG. 3e.
  • a block-like flat iron 30 serving as a stop is permanently on its upper edge, e.g. fixed by welding, which slides with its top on the underside of the upper wall of the receiving arm 11 with little play, as can be seen from Fig. 3b.
  • the height of this flat iron 30 is coordinated with the vertical diameter of the extension arm 12 so that a largely tilt-free sliding fit is achieved in the interior of the receiving arm 11.
  • a support plate 31 is attached centrally between an upper and a lower block-like flat iron 33.
  • a bore 34 is formed in the projecting part of this support plate 31, into which a suitable support member 31a (FIG. 2) can be inserted.
  • the two block-like flat irons 32, 33 are permanently connected to the middle support plate 31 and also to the walls of the extension arm 12 and form an end-side transverse stiffening of the extension arm 12, which ensures its sufficient bending and torsional rigidity.
  • the exemplary embodiment of the support arm 9 according to the invention shown in FIGS. 4a to 4e largely corresponds in its technical concept and also its structural design to the exemplary embodiment according to FIGS. 3a to 3e, so that the same components are also designated with the same reference numerals.
  • the support arm shown in Fig. 4 has a telescopically extendable middle part 40, which in the same technology as the rear receiving arm 11 or the front extension arm 12 by laser cutting a sheet steel blank and bending to a square profile or as extruded light metal hollow profile is produced.
  • a bow-shaped cross stiffener 41 At the front end of this middle part 40 there is a bow-shaped cross stiffener 41, which is permanently connected to the outer walls of the hollow profile, for example by welding.
  • FIG. 5 shows a variant of the support arm 9 shown in FIGS. 3a to 3e as a further exemplary embodiment of the invention.
  • This illustrated support arm 9 can be used on the column 1 according to FIG. 1 or also on another suitable column or stand construction of a lifting device.
  • 5 corresponds to that of the support arm 9 shown in FIGS. 3a to 3e.
  • the difference in the embodiment according to FIG. 5 compared to the embodiment according to FIG. 3 is that at the free end of the receiving arm 11 in the upper portion of which a cutout 36 is formed, which is delimited by two oblique end edges 37 of the two side walls and a recessed transverse edge 38 of the upper horizontal top wall of the receiving arm 11. This constructive measure prevents collisions with certain projecting components of the vehicles to be lifted, for example with so-called sills.
  • FIG. 6 corresponds to the support arm 9 according to FIGS. 4a to 4e, so that the same components are identified with the corresponding reference numerals.
  • this variant according to FIG. 6 has a cutout 42 or 43 at the free end of the middle arm 40 and the receiving arm 11, which - in the same way as in the variant according to FIG. 5 - of two each lateral inclined edges 44, 45 and a recessed upper transverse edge are limited.
  • the invention is not limited to the exemplary embodiments described above and shown in the drawing. So instead of the square profiles shown, the receiving arm and / or the extension arm can have a different profiled cross-sectional shape.
  • the bow-like transverse stiffeners 13, 41 are made of are particularly advantageous for technical reasons, other elements, for example welds, can be used instead of these stiffening brackets.
  • Changes are also possible with regard to the support bearing 7 shown, although this embodiment is inexpensive and offers advantages in terms of production technology. Changes to individual components should be made in such a way that the individual components can be molded and assembled from simple starting materials during operation, so that the desired high flexibility with regard to a large number of different embodiments is achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Body Structure For Vehicles (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Pallets (AREA)
  • Control And Safety Of Cranes (AREA)
  • Manipulator (AREA)

Abstract

The subject matter of the invention relates to a support arm for a lifting platform, comprising at least one relatively wide support arm and an extension arm telescopically slidable therein, the arms each having torsionally rigid and flexurally stiff hollow profiles, a support bearing at the rear end of the accommodating arm for the pivotable hinging connection to a lifting carriage of a column and a bearing foot at the free end of the respective extension arm. A cost-effective production of support arms in different sizes and shapes is obtained by cutting at least the accommodating arm from a steel panel blank and forming it into a hollow profile and providing it with at least one transverse reinforcement.

Description

Tragarm für eine Hebebühne Support arm for a lifting platform
Die Erfindung betrifft einen Tragarm für eine Hebebühne, insbesondere eine Ständer- bzw. Säulenhebebühne, mit mindestens einem breiteren Aufnahmearm und einem darin teleskopartig verschiebbarem Auszugsarm, die jeweils aus torsions- und biegesteifen Hohlprofilen bestehen, wobei am rückwärtigen Ende des Aufnahmearms ein Traglager vorgesehen ist, über das der Tragarm horizontal verschwenkbar an den Hubschlitten einer Säule angelenkt ist, und wobei am freien Ende des inneren Auszugsarms ein Auflagerfuß befestigt ist, auf dem verschiedenartige Stützelemente angeordnet und befestigt werden können.The invention relates to a support arm for a lifting platform, in particular a stand or pillar lifting platform, with at least one wider receiving arm and one extending arm telescopically displaceable therein, each consisting of torsionally and rigid tubular profiles, a supporting bearing being provided at the rear end of the receiving arm, by means of which the support arm is articulated in a horizontally pivotable manner on the lifting slide of a column, and a support foot is fastened to the free end of the inner extension arm, on which various support elements can be arranged and fastened.
Derartige Tragarme sind insbesondere in Verbindung mit sog. Ständer- Hebebühnen für Kraftfahrzeuge bekannt. An den Hubschlitten einer Säule sind jeweils zwei Tragarme über ausreichend steife Lageranordnungen angelenkt, sodass jeder Tragarm in der horizontalen Ebene einzeln verschwenkt werden kann. Damit die geeigneten Aufstands- bzw. Stützelemente in den jeweils vorgeschriebenen Lagen unter dem Fahrzeugboden positioniert werden können, ist nicht nur eine Schwenkbarkeit der jeweiligen Tragarme erforderlich, sondern diese müssen auch in ihrer Länge verstellbar sein, was durch eine teleskopartige Ausbildung jedes Tragarms erreicht wird. Demzufolge besteht ein Tragarm aus einem inneren Aufnahmearm und einem hierzu koaxialen Auszugsarm, der in dem rückwärtig am Hubschlitten angelenkten Aufnahmearm längs verschiebbar aufgenommen ist. Da die frei auskragenden Teleskoparme die Last eines anzuhebenden Kraftfahrzeugs über die Traglagerung in den Hubschlitten und damit in die Säule einleiten, müssen die Tragarme eine ausreichend hohe Torsions- und Biegestei- figkeit haben, um auch im voll ausgezogenem Zustand eine sichere HaI- terung und Abstützung des aufliegenden Kraftfahrzeugs zu gewährleisten. Zur Erzielung der ausreichenden Steifigkeit bestehen die bisher verwendeten Tragarme aus stranggepressten Hohlprofilen in Vollmantelausführung meist aus relativ hochwertigen Stählen. Die stranggepressten Hohlprofile wurden als Ausgangsmaterial von Presswerken bezogen und zu den Tragarmen unterschiedlicher Größe weiterverarbeitet.Support arms of this type are known in particular in connection with so-called stand lifting platforms for motor vehicles. Two support arms are each articulated on the lifting carriage of a column via sufficiently rigid bearing arrangements so that each support arm can be pivoted individually in the horizontal plane. So that the suitable support or support elements can be positioned in the prescribed positions under the vehicle floor, not only is it necessary to pivot the respective support arms, but they must also be adjustable in length, which is achieved by a telescopic design of each support arm. Accordingly, a support arm consists of an inner holding arm and a pull-out arm which is coaxial therewith and which is accommodated in a longitudinally displaceable manner in the holding arm articulated on the rear of the lifting slide. Since the freely cantilevered telescopic arms transfer the load of a motor vehicle to be lifted via the support bearing in the lifting slide and thus into the column, the support arms must have a sufficiently high torsional and bending stiffness in order to ensure secure support and support even when fully extended to ensure the overlying motor vehicle. To achieve sufficient rigidity, there are so far support arms made of extruded hollow profiles in solid casing mostly made of relatively high quality steels. The extruded hollow profiles were sourced from press shops and processed into different-sized support arms.
Neben den relativ hohen Kosten des stranggepressten Profilmaterials ist es von Nachteil, dass die Hersteller von Hebebühnen und damit auch deren Tragarmen an die Größen und Typen des Profilmaterials gebunden sind, sodass die Tragarme nicht an die speziellen Bedürfnisse einer bestimmten Hebebühne angepasst werden können.In addition to the relatively high cost of the extruded profile material, it is disadvantageous that the manufacturers of lifting platforms and thus also their support arms are bound to the sizes and types of the profile material, so that the support arms cannot be adapted to the special needs of a specific lifting platform.
Aufgabe der Erfindung ist es, einen Tragarm für eine Hebebühne zu schaffen, der kostengünstig und in nahezu beliebigen Größen und Formen mit relativ geringem Aufwand hergestellt werden kann.The object of the invention is to provide a support arm for a lifting platform, which can be produced inexpensively and in almost any size and shape with relatively little effort.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass zumindest der Aufnahmearm aus einem Stahlplattenzuschnitt zu dem Hohlprofil geformt ist und mindestens eine Querversteifung aufweist.This object is achieved in that at least the receiving arm is formed from a steel plate blank to form the hollow profile and has at least one transverse stiffener.
Die erfindungsgemäßen Tragarme lassen sich wesentlich kostengünstiger als die aus stranggepressten Profilen bestehenden Tragarme herstellen. Darüber hinaus können die erfindungsgemäßen Tragarme durch relativ einfache Formungsvorgänge in unterschiedlichsten Varianten und Profilquerschnitten erzeugt werden, was bei herkömmlichen Tragarmen wegen der Bindung an vorgegebene Querschnitte des jeweils verwendeten Strangprofils nicht möglich war. Zur Herstellung der erfindungsgemäßen Tragarme werden als Ausgangsmaterial warm- oder kaltgewalzte Stahlbleche von jeweils geeigneter Wandstärke im Bereich von 5,0 bis 12,0 mm verwendet. Aus diesen Stahlblechen werden Zuschnitte von geeigneter Form ausgeschnitten, was vorzugsweise durch Laserschneiden erfolgt. Auf technisch einfachen und effektiven Biegemaschinen werden diese ebenen Blechzuschnitte zu Rund- oder Kant- Hohlprofilen kaltgeformt. Dabei werden die Querschnitte der jeweiligen Aufnahmearme und der zugeordneten Auszugsarme so gewählt, dass der jeweilige Auszugsarm axial verschiebbar und mit relativ geringem Querspiel in den Aufnahmearm verschoben werden kann.The support arms according to the invention can be manufactured much more cost-effectively than the support arms consisting of extruded profiles. In addition, the support arms according to the invention can be produced in a wide variety of variants and profile cross sections by relatively simple shaping processes, which was not possible with conventional support arms because of the binding to predetermined cross sections of the extruded profile used in each case. To produce the support arms according to the invention, hot or cold-rolled steel sheets of suitable wall thickness in the range from 5.0 to 12.0 mm are used as the starting material. Blanks of a suitable shape are cut out of these steel sheets, which is preferably done by laser cutting. On technically simple and effective bending machines, these flat sheet metal blanks are turned into round or square Hollow sections cold formed. The cross sections of the respective holding arms and the associated pull-out arms are selected such that the respective pull-out arm can be moved axially and with relatively little transverse play in the holding arm.
Obgleich die beiden Armteile jedes Tragarms, d.h. der Aufnahmearm und der Auszugsarm, auch kreisförmige oder anders gerundete Querschnitte haben können, ist es doch zweckmäßiger, wenn zumindest der breitere Aufnahmearm ein Vierkant-Hohlprofil hat und vorzugsweise an seiner Unterseite einen durchgehenden Längsschlitz von vorgegebener Breite aufweist. Durch das Vierkant-Hohlprofil wird eine verdrehsichere Längsführung des Auszugsarms im breiteren Aufnahmearm erreicht.Although the two arm parts of each support arm, i.e. the receiving arm and the extension arm, can also have circular or other rounded cross sections, it is more expedient if at least the wider receiving arm has a square hollow profile and preferably has a continuous longitudinal slot of a predetermined width on its underside. Thanks to the square hollow profile, the extension arm is secured against rotation in the wider holding arm.
Um den Tragarmen die im Hubbetrieb notwendige Festigkeit zu geben, ist jedes längsgeschlitzte Hohlprofil eines breiteren Aufnahmearms und auch eines darin verschiebbaren Auszugsarms mit mindestens einer Querversteifung versehen, die auf unterschiedliche Weise ausgebildet sein kann. Wenn die Längsschlitze des jeweiligen Arms nur eine relativ geringe Breite haben, können punkt- oder nahtförmige Schweißverbindungen der Kanten zweckmäßig sein. Die formschlüssige Verbindung der beiden eingebogenen, den Längsschlitz begrenzenden Längskanten führt zu einer hohen Torsions- und Biegesteifigkeit des jeweiligen Tragarmteils, die mit derjenigen eines herkömmlichen stranggepressten Hohlprofils vergleichbar ist. Herstellungstechnische und funktionale Vorteile bieten als Bügel ausgebildete Querversteifungen, die den Längsschlitz vorzugsweise im freien Endteil des jeweiligen Aufnahmearms überdecken und an der Außenseite des Hohlprofils dauerhaft, z.B. durch Schweißen, befestigt sind.In order to give the support arms the strength required in lifting operation, each longitudinally slotted hollow profile of a wider receiving arm and also of a pull-out arm displaceable therein is provided with at least one cross-bracing, which can be designed in different ways. If the longitudinal slots of the respective arm have only a relatively small width, point or seam-shaped welded connections of the edges can be expedient. The positive connection of the two bent-in longitudinal edges delimiting the longitudinal slot leads to a high torsional and bending stiffness of the respective support arm part, which is comparable to that of a conventional extruded hollow profile. Manufacturing-related and functional advantages offer cross stiffeners designed as brackets, which preferably cover the longitudinal slot in the free end part of the respective receiving arm and permanently, e.g. by welding.
Zum Erhalt einer hochfesten und leicht verschwenkbaren Anlenkung des erfindungsgemäßen Tragarms an dem Hubschlitten einer Säule besteht das am inneren Ende des Aufnahmearms vorgesehene Traglager aus mehreren konstruktiv einfachen Einzelteilen, die durch einfache Schneid- und Biegevorgänge kostengünstig hergestellt werden können und zu einer stabilen Traglagerkonstruktion fest miteinander verbunden, insbesondere verschweißt, werden. Zweckmäßig weist das endsei- tige Traglager am Aufnahmearm eine an den Endkanten des Hohlprofils dauerhaft befestigte Querplatte und zwei mit Querabstand am Armende angeordnete Lagerplatten auf, in deren miteinander fluchtende Bohrungen ein am Hubschlitten ausgebildeter Zapfen eingreift. Zweckmäßig ist auf der Oberseite des Aufnahmearms eine abgebogene längs ausgerichtete Lagerplatte befestigt, die mit der Querplatte z.B. verschweißt oder anderweitig fest verbunden ist und in ihrem vorstehenden Endteil die Lagerbohrung aufweist.In order to obtain a high-strength and easily pivotable articulation of the support arm according to the invention on the lifting slide of a column, the support bearing provided at the inner end of the receiving arm consists of several structurally simple individual parts, which are simple Cutting and bending processes can be produced inexpensively and are firmly connected to one another, in particular welded, to form a stable support bearing construction. The end-side support bearing on the receiving arm expediently has a cross plate permanently fastened to the end edges of the hollow profile and two bearing plates arranged at a transverse spacing at the arm end, in the mutually aligned bores of which a pin formed on the lifting slide engages. A bent, longitudinally oriented bearing plate is expediently fastened on the upper side of the receiving arm, which is, for example, welded or otherwise firmly connected to the transverse plate and has the bearing bore in its projecting end part.
Der Auszugsarm ist zweckmäßig ebenfalls als Vierkant-Hohlprofil mit unterseitigem Längsschlitz ausgebildet und trägt an seinem inneren Einschubende eine Querplatte, die ein geringes Spiel zur Unterseite des Aufnahmearms hat. Am äußeren Ende des Auszugsarms ist eine Tragplatte durch zwei Querplatten jeweils mit Schweißverbindungen befestigt.The pull-out arm is also expediently designed as a square hollow profile with a longitudinal slot on the underside and carries at its inner insertion end a transverse plate which has a slight play to the underside of the receiving arm. At the outer end of the extension arm, a support plate is secured by two cross plates, each with welded connections.
Zum Erhalt ausreichender Auszugslängen können die Tragarme auch mehrfach-teleskopisch ausgebildet sein, d.h. neben dem inneren Aufnahmearm und dem äußeren Auszugsarm einen mittleren Armteil aufweisen, der einerseits in dem Aufnahmeteil verschiebbar geführt ist und andererseits zur längsverschiebbaren Aufnahme des Auszugsarms dient. Auch dieser mittlere Armteil besteht aus einem durch Biegeverformung eines ebenen Blechzuschnitts hergestellten Kantprofil mit durchgehendem Längsschlitz und Querversteifung.In order to obtain sufficient extension lengths, the support arms can also be designed with multiple telescopes, i.e. In addition to the inner receiving arm and the outer pull-out arm, they have a central arm part which is displaceably guided on the one hand in the receiving part and on the other hand serves for the longitudinally displaceable receiving of the pull-out arm. This middle arm part also consists of an edge profile produced by bending a flat sheet metal blank with a continuous longitudinal slot and transverse reinforcement.
Im Folgenden werden Ausführungsbeispiele der Erfindung anhand der Zeichnung im Einzelnen beschrieben. Es zeigen:Exemplary embodiments of the invention are described in detail below with reference to the drawing. Show it:
Fig. 1 schematisch die Säule einer Kraftfahrzeug-Säulenhebebühne in perspektivischer Darstellung; Fig. 2 den Ausschnitt A in Fig. 1 in vergrößerter perspektivischer Darstellung,Figure 1 schematically shows the pillar of a motor vehicle pillar lift in a perspective view. 2 shows the detail A in Fig. 1 in an enlarged perspective view,
Fig. 3a bis e eine Ausführung des erfindungsgemäßen Tragarms in mehreren Darstellungen;3a to e an embodiment of the support arm according to the invention in several representations;
Fig. 4a bis e ein anderes Ausfuhrungsbeispiel eines erfindungsgemäßen Tragarms in mehreren Darstellungen.4a to e another exemplary embodiment of a support arm according to the invention in several representations.
Fig. 5 eine Variante des in Fig. 3 a bis e dargestellten Tragarms.Fig. 5 shows a variant of the support arm shown in Fig. 3 a to e.
Fig. 6 eine Variante des in Fig. 4a bis e dargestellten Tragarms.Fig. 6 shows a variant of the support arm shown in Fig. 4a to e.
Die in Fig. 1 dargestellte Säule 1 gehört zu einer Doppel-Säulenhebebühne für Kraftfahrzeuge, kann jedoch auch Teil einer sog. Viersäulen- Hebebühne sein. An dem als Flachstahlkonstruktion oder als strangge- presstes Leichtmetallprofü ausgebildeten formsteifen und tragfähigen Säulenkörper 2 ist eine Bodenplatte 3 befestigt, die z.B. durch Schraubbolzen im Fundament fest verankert wird. Innerhalb der Verkleidung der Säule 1 ist eine Gewindespindel angeordnet, die in unteren und oberen Drehlagern läuft und eine Mutter trägt, die mit einem als Hubschlitten 5 bezeichneten Aggregat verbunden ist. Das obere Ende der Gewindespindel ist mit der Abtriebswelle eines Elektromotors 4 verbunden, der die Gewindespindel antreibt, sodass die darauf gelagerte Mutter Hub- und Senkbewegungen ausführt.The column 1 shown in FIG. 1 belongs to a double-column lifting platform for motor vehicles, but can also be part of a so-called four-column lifting platform. A base plate 3 is fastened to the rigid and stable column body 2, which is designed as a flat steel structure or as an extruded light metal profi, which e.g. is firmly anchored in the foundation by means of bolts. A threaded spindle is arranged within the cladding of the column 1, which runs in the lower and upper pivot bearings and carries a nut which is connected to an assembly referred to as a lifting slide 5. The upper end of the threaded spindle is connected to the output shaft of an electric motor 4, which drives the threaded spindle, so that the nut mounted thereon carries out lifting and lowering movements.
An dem heb- und senkbaren Hubschlitten 5 ist eine Traglageranordnung 6 montiert, die jeweils ein Traglager 7, 8 für je einen horizontalen Tragarm 9, 10 aufweist. Die beiden Tragarme 9, 10 sind gleich ausgebildet, sodass im Folgenden nur einer der an jeder Säule 1 eingesetzten beiden Tragarme 9, 10 beschrieben wird.A support bearing arrangement 6 is mounted on the liftable and lowerable lifting slide 5, each of which has a support bearing 7, 8 for a horizontal support arm 9, 10 each. The two support arms 9, 10 are of identical design, so that only one of the two support arms 9, 10 used on each column 1 is described below.
In Fig. 3 ist ein Ausführungsbeispiel eines Tragarms 9 in perspektivischer Darstellung (a), im axialen Längsschnitt (b), in Draufsicht (c), in Seitenansicht (d) sowie in einem vergrößerten Ausschnitt (Z in b) dargestellt. Der gezeigte Tragarm 9 ist kürzer als die Tragarme 8, 9 in Fig. 2, jedoch zu diesen Tragarm-Ausführungen konstruktiv gleichartig. Der Tragarm 9 weist als Hauptbestandteile einen Aufnahmearm 11 und einen Auszugsarm 12 auf, die beide aus einem Vierkant- Stahlprofil bestehen und an ihrer Unterseite einen durchgehenden Längsschlitz aufweisen, wie aus Fig. 3e ersichtlich. Beide Arme 11, 12 werden aus kalt- oder warmgewalztem Flachmaterial, vorzugsweise einem Stahlblech, geformt, das Dicken von < 5 mm bis > 12 mm hat.In Fig. 3 an embodiment of a support arm 9 is shown in perspective (a), in axial longitudinal section (b), in plan view (c), in side view (d) and in an enlarged section (Z in b). The support arm 9 shown is shorter than the support arms 8, 9 in Fig. 2, but structurally identical to these support arm designs. The main arm 9 has a main arm 11 and an extension arm 12, both of which consist of a square steel profile and have a continuous longitudinal slot on their underside, as can be seen from Fig. 3e. Both arms 11, 12 are formed from cold or hot rolled flat material, preferably a steel sheet, which has thicknesses of <5 mm to> 12 mm.
Der Aufnahmearm 11 weist an seinem vorderen Endabschnitt einen aus einem Stahlblech geformten Bügel 13 auf, der - wie aus Fig. 3e ersichtlich - den in der Unterseite ausgebildeten Längsschlitz 14 überdeckt. Wie gezeigt hat der ein Versteifungselement darstellende Bügel 13 einen C-förmigen Querschnitt und ist an der Außenwandung des Aufnahmearms 11 dauerhaft, z.B. durch Schweißnähte 15, befestigt.The receiving arm 11 has at its front end section a bracket 13 formed from sheet steel, which - as can be seen from FIG. 3e - covers the longitudinal slot 14 formed in the underside. As shown, the stiffening member 13 has a C-shaped cross-section and is permanent on the outer wall of the receiving arm 11, e.g. fixed by welds 15.
Das Traglager 7 enthält eine obere doppelt abgewinkelte Lagerplatte 17, die die gleiche Breite wie der Aufnahmearm 11 hat, und z.B. durch Laserschneiden aus einem ausreichend stabilen Stahlblechzuschnitt hergestellt ist. Die langgestreckte Lagerplatte 17 hat eine doppelt abgewinkelte Form und besteht aus einem rückwärtigen halbrunden Abschnitt 18, der auf der Oberseite des Aufnahmearms 11 befestigt, z.B. angeschweißt, ist, aus einem schräg aufsteigenden Mittelteil 19 sowie aus einem parallel zur Längsachse 23 des Aufnahmearms 11 ausgerichteten Endteil 20, in dem eine Bohrung 21 zur Aufnahme eines Lagerzapfens 22 (Fig. 2) ausgebildet ist. An der inneren Endseite des Aufnahmearms 11 ist eine sich senkrecht zur Längsachse 23 des Aufnahmearms erstreckende Querplatte 24 dauerhaft, z.B. durch Schweißen, befestigt, deren Oberkante an der Unterseite des laschenartig vorstehenden Endteils 20 der Lagerplatte 17 befestigt ist. Wie insbesondere aus Fig. 3b und 3d ersichtlich, ist im unteren Drittel der Querplatte 24 eine weitere Platte 25 dauerhaft, z.B. durch Schweißen, befestigt, in der eine mit der Bohrung 21 fluchtende Lagerbohrung 26 zur Aufnahme des Lagerzapfens 22 (Fig. 2) ausgebildet ist.The support bearing 7 contains an upper double-angled bearing plate 17, which has the same width as the receiving arm 11, and is produced, for example, by laser cutting from a sufficiently stable sheet steel blank. The elongated bearing plate 17 has a double angled shape and consists of a rear semicircular section 18, which is fastened, for example welded, to the top of the receiving arm 11, an obliquely rising central part 19 and an end part aligned parallel to the longitudinal axis 23 of the receiving arm 11 20, in which a bore 21 for receiving a bearing journal 22 (FIG. 2) is formed. On the inner end side of the receiving arm 11, a transverse plate 24 extending perpendicular to the longitudinal axis 23 of the receiving arm is permanently fixed, for example by welding, the upper edge of which is attached to the underside of the tab-like projecting end part 20 of the bearing plate 17. As can be seen in particular from FIGS. 3b and 3d, a further plate 25 is permanently fixed in the lower third of the cross plate 24, for example by welding, in which one with the Bore 21 aligned bearing bore 26 for receiving the bearing pin 22 (Fig. 2) is formed.
Bei diesem Ausführungsbeispiel besteht der Auszugsarm 12 ebenfalls aus einem Vierkant-Hohlprofil, wie dies aus Fig. 3e hervorgeht. Am hinteren Ende des Auszugsarms 12 ist auf dessen Oberrand ein als Anschlag dienendes blockartiges Flacheisen 30 dauerhaft, z.B. durch Schweißen, befestigt, das mit seiner Oberseite an der Unterseite der oberen Wand des Aufnahmearms 11 mit geringem Spiel gleitet, wie dies aus Fig. 3b ersichtlich ist. Die Höhe dieses Flacheisens 30 ist mit dem vertikalen Durchmesser des Auszugsarms 12 so abgestimmt, dass ein weitgehend kippfreier Gleitsitz in dem Innenraum des Aufnahmearms 11 erreicht wird. Am freien Ende des Auszugsarms 12 ist eine Stützplatte 31 mittig zwischen einem oberen und einem unteren blockartigen Flacheisen 33 befestigt. In dem vorkragenden Teil dieser Stützplatte 31 ist eine Bohrung 34 ausgebildet, in die ein geeignetes Stützglied 31a (Fig. 2) eingesetzt werden kann. Die beiden blockartigen Flacheisen 32, 33 sind mit der mittleren Stützplatte 31 sowie auch mit den Wänden des Auszugsarms 12 dauerhaft verbunden und bilden eine endseitige Querversteifung des Auszugsarms 12, die seine ausreichende Biege- und Torsionssteifigkeit gewährleistet.In this embodiment, the extension arm 12 also consists of a square hollow profile, as can be seen from FIG. 3e. At the rear end of the extension arm 12, a block-like flat iron 30 serving as a stop is permanently on its upper edge, e.g. fixed by welding, which slides with its top on the underside of the upper wall of the receiving arm 11 with little play, as can be seen from Fig. 3b. The height of this flat iron 30 is coordinated with the vertical diameter of the extension arm 12 so that a largely tilt-free sliding fit is achieved in the interior of the receiving arm 11. At the free end of the extension arm 12, a support plate 31 is attached centrally between an upper and a lower block-like flat iron 33. A bore 34 is formed in the projecting part of this support plate 31, into which a suitable support member 31a (FIG. 2) can be inserted. The two block-like flat irons 32, 33 are permanently connected to the middle support plate 31 and also to the walls of the extension arm 12 and form an end-side transverse stiffening of the extension arm 12, which ensures its sufficient bending and torsional rigidity.
Das in Fig. 4a bis 4e dargestellte Ausführungsbeispiel des erfindungs- gemäßen Tragarms 9 entspricht in seinem technischen Konzept und auch seiner konstruktiven Ausführung weitestgehend dem Ausführungsbeispiel nach Fig. 3a bis 3e, sodass gleiche Bauteile auch mit denselben Bezugszeichen bezeichnet sind. Um die Auszugslänge zu vergrößern, weist der in Fig. 4 dargestellte Tragarm einen teleskopartig ausziehbaren Mittelteil 40 auf, der in der gleichen Technologie wie der hintere Aufnahmearm 11 bzw. der vordere Auszugsarm 12 durch Laser-Ausschneiden eines Stahlblechzuschnitts und Biegeumformen zu einem Vierkantprofil oder als stranggepresstes Leichtmetall-Hohlprofil hergestellt ist. Am vorderen Ende dieses Mittelteils 40 befindet sich au- ßen eine bügeiförmige Querversteifαng 41, die mit den Außenwänden des Hohlprofils dauerhaft, z.B. durch Schweißen, verbunden ist.The exemplary embodiment of the support arm 9 according to the invention shown in FIGS. 4a to 4e largely corresponds in its technical concept and also its structural design to the exemplary embodiment according to FIGS. 3a to 3e, so that the same components are also designated with the same reference numerals. In order to increase the extension length, the support arm shown in Fig. 4 has a telescopically extendable middle part 40, which in the same technology as the rear receiving arm 11 or the front extension arm 12 by laser cutting a sheet steel blank and bending to a square profile or as extruded light metal hollow profile is produced. At the front end of this middle part 40 there is a bow-shaped cross stiffener 41, which is permanently connected to the outer walls of the hollow profile, for example by welding.
In Fig. 5 ist eine Variante des in Fig. 3a bis 3e dargestellten Tragarms 9 als weiteres Ausführungsbeispiel der Erfindung gezeigt. Dieser dargestellte Tragarm 9 kann an der Säule 1 nach Fig. 1 oder auch an einer anderen geeigneten Säulen- bzw. Ständerkonstruktion einer Hubvorrichtung eingesetzt werden. Die konstruktive Ausbildung und auch die Arbeitsweise dieser Variante nach Fig. 5 entspricht denjenigen des in Fig. 3a bis 3e dargestellten Tragarms 9. Unterschiedlich bei der Ausführung nach Fig. 5 gegenüber der Ausführung nach Fig. 3 ist, dass am freien Ende des Aufnahmearms 11 in dessen oberem Abschnitt ein Ausschnitt 36 ausgebildet ist, der von zwei schrägen Endkanten 37 der beiden Seitenwände und einer zurückgesetzten Querkante 38 der oberen horizontalen Deckwand des Aufnahmearms 11 begrenzt wird. Durch diese konstruktive Maßnahme werden Kollisionen mit gewissen vorkragenden Bauteilen der anzuhebenden Fahrzeuge, beispielsweise mit sog. Schwellern, vermieden.5 shows a variant of the support arm 9 shown in FIGS. 3a to 3e as a further exemplary embodiment of the invention. This illustrated support arm 9 can be used on the column 1 according to FIG. 1 or also on another suitable column or stand construction of a lifting device. 5 corresponds to that of the support arm 9 shown in FIGS. 3a to 3e. The difference in the embodiment according to FIG. 5 compared to the embodiment according to FIG. 3 is that at the free end of the receiving arm 11 in the upper portion of which a cutout 36 is formed, which is delimited by two oblique end edges 37 of the two side walls and a recessed transverse edge 38 of the upper horizontal top wall of the receiving arm 11. This constructive measure prevents collisions with certain projecting components of the vehicles to be lifted, for example with so-called sills.
Das in Fig. 6 dargestellte Ausführungsbeispiel der Erfindung entspricht dem Tragarm 9 nach Fig. 4a bis 4e, sodass gleiche Bauteile mit den entsprechenden Bezugszeichen gekennzeichnet sind. Zur Vermeidung von Kollisionen mit abstehenden Fahrzeugteilen weist diese Variante nach Fig. 6 je einen Ausschnitt 42 bzw. 43 am freien Ende des Mittelarms 40 und des Aufnahmearms 11 auf, die - in gleicher Weise wie bei der Variante gemäß Fig. 5 - von jeweils zwei seitlichen Schrägkanten 44, 45 und einer zurückgesetzten oberen Querkante begrenzt sind.The embodiment of the invention shown in FIG. 6 corresponds to the support arm 9 according to FIGS. 4a to 4e, so that the same components are identified with the corresponding reference numerals. To avoid collisions with protruding vehicle parts, this variant according to FIG. 6 has a cutout 42 or 43 at the free end of the middle arm 40 and the receiving arm 11, which - in the same way as in the variant according to FIG. 5 - of two each lateral inclined edges 44, 45 and a recessed upper transverse edge are limited.
Die Erfindung ist nicht auf die vorstehend beschriebenen und in der Zeichnung dargestellten Ausführungsbeispiele beschränkt. So können statt der dargestellten Vierkantprofile der Aufnahmearm und/ oder auch der Auszugsarm eine andere profilierte Querschnittsform haben. Obwohl die bügelartigen Querversteifungen 13, 41 aus herstellungs- technischen Gründen von besonderem Vorteil sind, können statt dieser Versteifungsbügel auch andere Elemente, beispielsweise Schweißnähte, eingesetzt werden. Änderungen sind auch bezüglich der dargestellten Traglager 7 möglich, obgleich diese Ausführung kostengünstig ist und herstellungstechnische Vorzüge bietet. Änderungen von einzelnen Bauteilen sollten so getroffen werden, dass die einzelnen Bauteile aus einfachen Ausgangsmaterialien im Betrieb geformt und zusammengebaut werden können, damit die angestrebt hohe Flexibilität bezüglich einer Vielzahl von unterschiedlichen Ausführungsformen erreicht wird. The invention is not limited to the exemplary embodiments described above and shown in the drawing. So instead of the square profiles shown, the receiving arm and / or the extension arm can have a different profiled cross-sectional shape. Although the bow-like transverse stiffeners 13, 41 are made of are particularly advantageous for technical reasons, other elements, for example welds, can be used instead of these stiffening brackets. Changes are also possible with regard to the support bearing 7 shown, although this embodiment is inexpensive and offers advantages in terms of production technology. Changes to individual components should be made in such a way that the individual components can be molded and assembled from simple starting materials during operation, so that the desired high flexibility with regard to a large number of different embodiments is achieved.

Claims

Ansprüche Expectations
1. Tragarm für eine Hebebühne, mit1. Support arm for a lift, with
- mindestens einem breiteren Aufnahmearm (11) und einem darin teleskopartig verschiebbaren Auszugsarm (12), die jeweils aus torsions- und biegesteifen Hohlprofilen hergestellt sind,- At least one wider receiving arm (11) and a telescopically displaceable extending arm (12), which are each made of torsion and rigid hollow profiles,
- einem Traglager (6) am rückwärtigen Ende des Aufnahmearms (11) zur schwenkbaren Anlenkung an einem Hubschlitten (5) einer Säule (2) und- A support bearing (6) at the rear end of the receiving arm (11) for pivotable articulation on a lifting carriage (5) of a column (2) and
- einem Auflagerfuß (31a) am freien Ende des jeweiligen Auszugsarms, dadurch gekennzeichnet, dass- A support foot (31a) at the free end of the respective extension arm, characterized in that
- zumindest der Aufnahmearm (11) aus einem Stahlplattenzuschnitt geschnitten und zu dem Hohlprofil geformt ist und- At least the receiving arm (11) is cut from a steel plate blank and shaped into the hollow profile and
- zumindest am Aufnahmearm (11) mindestens eine Querversteifung (13) vorgesehen ist.- At least one transverse stiffener (13) is provided at least on the receiving arm (11).
2. Tragarm nach Anspruch 1, dadurch gekennzeichnet, dass zumindest der Aufnahmearm (11) ein Vierkant-Hohlprofil hat und einen durchgehenden Längsschlitz (14) in einer Wand aufweist.2. Support arm according to claim 1, characterized in that at least the receiving arm (11) has a square hollow profile and has a continuous longitudinal slot (14) in a wall.
3. Tragarm nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Querversteifung (13) als Bügel ausgebildet ist, der den Längsschlitz (14) überdeckt und an der Außenseite des Arms (9) dauerhaft befestigt ist.3. Support arm according to claim 1 or 2, characterized in that the transverse stiffening (13) is designed as a bracket which covers the longitudinal slot (14) and is permanently attached to the outside of the arm (9).
4. Tragarm nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das endseitige Traglager (7) am Aufnahmearm (11) eine an den Endkanten des Hohlprofils dauerhaft befestigte Querplatte (24) und zwei mit Querabstand am Armende angeordnete Lagerplatten (20, 25) aufweist.4. Support arm according to one of the preceding claims, characterized in that the end support bearing (7) on the receiving arm (11) has a cross plate (24) permanently fastened to the end edges of the hollow profile. and has two bearing plates (20, 25) arranged at a transverse distance at the arm end.
5. Tragarm nach Anspruch 4, dadurch gekennzeichnet, dass auf der Oberseite des Aufnahmearms (12) eine abgebogene längsgerichtete Lagerplatte (17) befestigt ist, die mit der Querplatte (24) fest verbunden ist und in ihrem vorderen Endteil (20) eine Lagerbohrung (21) aufweist.5. Support arm according to claim 4, characterized in that on the top of the receiving arm (12) a bent longitudinal bearing plate (17) is fixed, which is fixed to the cross plate (24) and in its front end part (20) has a bearing bore ( 21).
6. Tragarm nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Auszugsarm (12) aus einem Stahlplattenzuschnitt durch mehrfaches Biegen zu dem einseitig längsgeschlitzten Vierkant- Hohlprofil geformt ist und an seinem freien Ende eine mit einer Aufnahmebohrung (34) für einen Stützteller versehene Stützplatte (31) aufweist.6. Support arm according to one of the preceding claims, characterized in that the pull-out arm (12) is formed from a steel plate blank by multiple bending to form a square hollow profile slit on one side and at its free end a support plate provided with a receiving bore (34) for a support plate (31).
7. Tragarm nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass zwischen dem Aufnahmearm (11) und dem Auszugsarm (12) ein Teleskop- Armteil (40) angeordnet ist, der im Aufnahmearm (11) längsverschiebbar geführt ist und in dem der Auszugsarm (12) längsverschiebbar bewegt werden kann.7. Support arm according to one of the preceding claims, characterized in that between the receiving arm (11) and the extension arm (12) a telescopic arm part (40) is arranged, which is guided in the receiving arm (11) longitudinally displaceable and in which the extension arm ( 12) can be moved longitudinally.
8. Tragarm nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass am freien Ende des Aufnahmearms (11) bzw. des Teleskop-Armteils (40) im oberen Bereich ein beidseitig von Schrägkanten (37, 38; 44, 45) begrenzter Ausschnitt (36; 42, 43) ausgebildet ist. 8. Support arm according to one of the preceding claims, characterized in that at the free end of the receiving arm (11) or the telescopic arm part (40) in the upper region a cutout (36, 38; 44, 45) delimited on both sides by oblique edges (37 ; 42, 43) is formed.
EP07711162A 2006-05-04 2007-01-29 Supporting arm for a lifting platform Not-in-force EP2016017B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006007156U DE202006007156U1 (en) 2006-05-04 2006-05-04 Support arm for a lift
PCT/DE2007/000155 WO2007128251A1 (en) 2006-05-04 2007-01-29 Supporting arm for a lifting platform

Publications (2)

Publication Number Publication Date
EP2016017A1 true EP2016017A1 (en) 2009-01-21
EP2016017B1 EP2016017B1 (en) 2010-03-24

Family

ID=36710337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07711162A Not-in-force EP2016017B1 (en) 2006-05-04 2007-01-29 Supporting arm for a lifting platform

Country Status (6)

Country Link
US (1) US8375649B2 (en)
EP (1) EP2016017B1 (en)
AT (1) ATE461907T1 (en)
DE (2) DE202006007156U1 (en)
DK (1) DK2016017T3 (en)
WO (1) WO2007128251A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007010804A1 (en) * 2007-03-02 2008-09-04 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Making lifting platform with scissor-mechanism, produces load-bearing component from sheet metal which is laser-cut and folded in bending press before assembly
WO2011100526A1 (en) * 2010-02-12 2011-08-18 Vehicle Service Group, Llc Inground superstructure and integrated third stage arm for vehicle lift
CH709471A2 (en) * 2014-04-04 2015-10-15 Villiger Public Systems Gmbh Lifting device on a truck vehicle.
US9862578B2 (en) * 2015-05-22 2018-01-09 Kathy Jones Tiltable and rotatable lifting pole assembly
CN105217520B (en) * 2015-11-03 2017-11-07 赛埃孚汽车保修设备（太仓）有限公司 A kind of small-sized buried elevator of high flexibility
DE202017006866U1 (en) * 2017-04-13 2018-08-23 Gerhard Finkbeiner Lifting platform for lifting vehicles
DE102020200507A1 (en) 2020-01-16 2021-07-22 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Telescopic swivel arm for a lifting platform
DE102021204948A1 (en) 2021-05-17 2022-11-17 Maha Maschinenbau Haldenwang Gmbh & Co. Kg BEARING DEVICE AND SUPPORT ARM OF A MOTOR VEHICLE LIFTING DEVICE
GB2609668B (en) * 2021-08-13 2023-09-27 Caterpillar Inc Wear pad, telescopic boom assembly and work machine
EP4455074A1 (en) * 2023-04-28 2024-10-30 Vehicle Service Group, LLC Nesting lift arm with integrated stops

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974458A (en) * 1932-10-19 1934-09-25 Gen Steel Castings Corp Dipper handle
US2415236A (en) * 1944-06-01 1947-02-04 Vigier William Alphonse De Adjustable centering and like supports
US2772790A (en) * 1955-05-09 1956-12-04 Roy D Kauffman Variable length boom extension
DE2222035A1 (en) * 1972-05-05 1973-11-22 J A Becker & Soehne Neckarsulm ADJUSTABLE SUPPORT PLATE ON TELESCOPIC SWIVEL ARMS OF ALL KINDS OF LIFTS
FR2302272A1 (en) 1975-02-28 1976-09-24 Cfea Double column vehicle jack safety device - prevents supporting arms slewing when working
US4134236A (en) * 1976-11-26 1979-01-16 Clark Equipment Company Side shoe assembly for a crane boom
US4600348A (en) * 1984-07-09 1986-07-15 Pettit Earl O Panel hoist
FR2809096B1 (en) * 2000-05-19 2002-08-30 Fogautolube Sa MOUNTING OF THE SUPPORT ARMS OF A VEHICLE IN A LIFT BRIDGE
DE10217064B4 (en) * 2002-04-17 2005-02-17 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Post lift

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007128251A1 *

Also Published As

Publication number Publication date
DK2016017T3 (en) 2010-06-14
EP2016017B1 (en) 2010-03-24
ATE461907T1 (en) 2010-04-15
US8375649B2 (en) 2013-02-19
WO2007128251A1 (en) 2007-11-15
US20090188758A1 (en) 2009-07-30
DE202006007156U1 (en) 2006-07-06
DE502007003225D1 (en) 2010-05-06

Similar Documents

Publication Publication Date Title
EP2016017A1 (en) Supporting arm for a lifting platform
EP2277819B1 (en) Scissor lift device
EP0700861A1 (en) Lifting platform for cars
WO2011138249A1 (en) Seat base frame for a motor vehicle seat
DE202012002832U1 (en) Vehicle lift with pretensioner
DE60225365T2 (en) Lifting support for a sheet metal bending machine
DE19737678C2 (en) Vehicle with frame support
EP0380941A2 (en) Telescopic supporting device
DE10102402B4 (en) Table arrangement with two table parts
DE102005006854A1 (en) Truck
DE102016122036A1 (en) Scissors lifting device
WO2011124453A1 (en) Device for adjusting the inclination of a front panel
DE102007041061B4 (en) Arrangement of a multi-functional wall, in particular game or sports wall, in a wall niche
DE19920672B4 (en) Linear actuator
DE3111694C2 (en) Mobile assembly stand
DE102006015414A1 (en) Hollow support section for side door sill of e.g. passenger car, has inner section provided for stiffening support section, where inner section is formed of wall area, where wall area is arc-shaped in cross section
DE102007039848A1 (en) Swing-folding machine for roll-bending workpiece, has folding rail whose working edges are changed between positive and negative folds of metal section, so that one of edges is formed at rail&#39;s movable part and moved parallel to other edge
DE2130653A1 (en) Two-pillar above-floor lifting platform
EP2072655B1 (en) Laundry carrier
DE19626854B4 (en) Support frame for a height-adjustable table
DE202010008879U1 (en) Table top extension with staggered rollers
DE102010000437B4 (en) Sales car
EP0172146A1 (en) Retractable bed
EP1466861B1 (en) Mast for a lift truck
DE10153164C2 (en) Jack with a support arm and method for manufacturing the support arm

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20081204

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 502007003225

Country of ref document: DE

Date of ref document: 20100506

Kind code of ref document: P

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20100324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20100324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100625

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100705

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100724

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100624

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100726

26N No opposition filed

Effective date: 20101228

BERE Be: lapsed

Owner name: MAHA MASCHINENBAU HALDENWANG G.M.B.H. & CO. KG

Effective date: 20110131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110131

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110129

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 461907

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100324

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20180125

Year of fee payment: 12

Ref country code: DE

Payment date: 20180131

Year of fee payment: 12

Ref country code: GB

Payment date: 20180125

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007003225

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20190131

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190131