EP0536547A1 - Vehicle jack - Google Patents

Vehicle jack Download PDF

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Publication number
EP0536547A1
EP0536547A1 EP92115326A EP92115326A EP0536547A1 EP 0536547 A1 EP0536547 A1 EP 0536547A1 EP 92115326 A EP92115326 A EP 92115326A EP 92115326 A EP92115326 A EP 92115326A EP 0536547 A1 EP0536547 A1 EP 0536547A1
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EP
European Patent Office
Prior art keywords
support arm
openings
threaded spindle
projections
side walls
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
EP92115326A
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German (de)
French (fr)
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EP0536547B1 (en
Inventor
Thomas Pfeiffer
Norbert Bacher
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EA Storz GmbH and Co KG
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EA Storz GmbH and Co KG
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Publication of EP0536547A1 publication Critical patent/EP0536547A1/en
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Publication of EP0536547B1 publication Critical patent/EP0536547B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F3/00Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/12Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers

Definitions

  • the invention relates to a jack with a pedestal, a support arm attached to it pivotably about a first transverse axis and a threaded spindle for pivoting the support arm relative to the pedestal, on the above the first transverse axis a nut penetrated by the threaded spindle about a second transverse axis parallel to the first transverse axis is pivotally attached, the support arm having two side walls spaced apart from one another in the direction of the transverse axes, between which the threaded spindle extends obliquely from above and in which mutually opposite hook-in openings are provided, the edges of which in the mother-facing first edge regions are circular (concave to Interior of the opening) are formed, and with a spindle abutment for the threaded spindle which is held pivotably between the support arm side walls about a third transverse axis parallel to the other two transverse axes and which engages with the hanging openings
  • Such a jack is such. B. known from DE-GM 80 00 595.4, while DE-PS 27 56 108 shows jacks with open-edge hanging openings.
  • the spindle abutment consists of two circular disks penetrated by the threaded spindle, between which a ball cage of an axial ball bearing is arranged and of which the disk facing the nut is provided with two diagonally opposite, tongue-shaped lugs, which form the above-mentioned projections and engage in the hook-in openings provided in the support arm side walls.
  • the shape of the two identically designed hook-in openings corresponds approximately to a circle, the area facing the mother of which supports one of the projections of the spindle abutment when the support arm is swung up, while an oblong-hole-like opening area opens into the diagonally opposite area of this circle, which provides an insertion area for easy access Assembly of the spindle abutment in the side walls of the support arm forms - each of the suspension openings thus has approximately the shape of an oversized comma.
  • the threaded spindle in the jack To assemble the threaded spindle in the jack, it is first inserted from above with its end area provided with the spindle abutment between the side walls of the support arm, which has an upwardly open U-profile, the disc of the spindle abutment provided with the above-mentioned approaches assuming a position in which these approaches do not extend vertically, but rather diagonally to the side walls of the support arm, so that the spindle abutment with its lugs can be inserted between the side walls of the support arm and the lugs can be inserted into the hanging openings - one lug comes into the insertion area of one hanging opening, while the other lug can be pushed directly into the approximately circular area of the other hanging opening.
  • the load head provided on the free end of the support arm is designed as a sheet metal part which is approximately W-shaped in cross section and which is welded to the support arm with its central region and with its one free leg overlaps the free front end of the support arm and forms a second abutment for the front spindle end and holds the two projections of the spindle abutment against the circular arc-shaped first edge regions of the two suspension openings.
  • this measure requires not only edge-open hook openings, but also a very specific design of the load head, so that this solution z. B. is not suitable for those jacks in which, as has recently been desired, the load head is pivotally mounted about a transverse axis on the support arm.
  • the invention was an object of the invention to provide a jack of the type mentioned, which does not require a specific design of the load head, but in which the spindle abutment can be easily attached to the support arm and rattling noises can not occur.
  • the edges of the suspension openings opposite the first edge regions, have second edge regions which are designed and arranged such that the projections of the spindle abutment in each of the possible angular positions of the threaded spindle relative to the support arm when the jack is actuated
  • the longitudinal direction of the threaded spindle is at least almost free of play between the first and second edge regions.
  • the design of the suspension openings thus prevents the support arm from freely pivoting back and forth relative to the pillar after the Projections of the spindle abutment have been brought into their functional position within the suspension openings.
  • the second edge regions of the suspension openings are also formed in a circular arc (convex to the interior of the opening) in order to create good sliding surfaces for the abutment projections also on these second edge regions; in principle, of course, it would be possible to design the second edge areas differently, e.g. B. so that they abut with several projections against the surfaces of the abutment projections facing away from the mother.
  • the hanging openings are expediently designed such that they each have an insertion area at the first and second edge areas, which extends approximately in the direction of the free end of the support arm from the said edge areas.
  • this avoids the risk that the abutment projections can get into the insertion areas of the hook-in openings at any angular position of the support arm and unloaded jack, on the other hand, the abutment projections can still be easily inserted into the hook-in openings if the threaded spindle with a spindle axis oriented approximately perpendicular to the support arm bottom is used introduces between the support arm side walls after the abutment disk provided with the projections is rotated in this way was that the longitudinal extent of the two projections does not run perpendicular to the side walls of the support arm, because then one can also insert one abutment projection into the insertion area of the one insertion opening and the other abutment projection into the area of the other insertion opening adjacent to
  • a particularly simple assembly then enables a preferred embodiment of the jack according to the invention, in which channel-shaped insertion recesses are provided for inserting the projections into the suspension openings on the mutually facing inner sides of the support arm side walls, which extend from the edges of the support arm side walls to the insertion regions of the suspension openings; in such an embodiment, when the spindle abutment is inserted between the side walls of the support arm, the abutment projections can be pushed along the channel-shaped insertion depressions up to the suspension openings and then inserted into them.
  • the trough-shaped insertion recesses it could, for. B. are millings; however, this embodiment can be produced much cheaper and without weakening the support arm if the insertion recesses are formed as bead-shaped embossments of the support arm side walls.
  • FIG. 1 shows the entire jack with a pedestal 10, which has two side walls 12 lying one behind the other in FIG. 1 and a back 14 connecting them to one another, and thus a U-profile open at the top and front.
  • a foot 16 is arranged, which likewise has two side walls 18 lying one behind the other in FIG. It is articulated with its side walls 18 to the side walls 12 of the pedestal 10, by means of two rivets 22 or by means of a continuous pin riveted to its ends, so that the foot 16 has a pivot axis running perpendicular to the plane of the drawing in FIG.
  • the jack has a threaded spindle 32 which has a rivet-shaped head 34 at the front and a pivot point 36 for a hand crank 38 at the rear; in between is a threaded section 40 with which the threaded spindle 32 runs in a nut designated as a whole as 42, which can be pivoted in a known and therefore not explained manner in the column side walls 12 about a second transverse axis 44 running perpendicular to the plane of the drawing in FIG. 1 is held.
  • abutment Arranged between a spacer tube 46 penetrated by the threaded spindle 32 and the spindle head 34 is an abutment, designated as a whole by 48, the construction of which will now be explained in more detail with reference to FIGS. 2 to 4.
  • the second disk 52 has, in addition to a passage opening 58 for the threaded spindle 32 and a raceway 60 for the balls 54, two diagonally opposite tab-shaped projections or projections 62, the cross section of which corresponds approximately to a part of a circular ring and which consequently in the End view circular and inner and outer bearing surfaces 64 and 68 form.
  • the two support arm side walls 28 are provided with mutually opposite and identically designed suspension openings 70 (these are located one behind the other in FIG. 2), each of which is designed according to the invention as follows: It is composed of a storage area 72 and an insertion area 74; the bearing area 72 is directed in the direction of the nut 42 from a first concave, circular arc-shaped edge area 76 and this delimited opposite by a second convex, circular arc-shaped edge region 78.
  • the two circular arcs are, in particular, approximately concentric to one another and, according to the invention, their distance from one another is the same or only slightly greater than the distance between the two bearing surfaces 64 and 68, ie as the thickness of the projections 62 between the bearing surfaces 64 and 68.
  • each of the two hanging openings 70 merge into at least approximately rectilinear and mutually parallel edge regions 80 and 82 of the insertion region 74, and the distance between the two edge regions 80, 82 from one another is equal to or slightly greater than the maximum thickness of the projections 62 of the disk 52 of the spindle abutment 48
  • the length of the slot-shaped insertion region 74 is equal to or slightly larger than the width of the projections 62 (viewed in the direction of the axis defined by the two projections 62).
  • the two support arm side walls 28 have channel-shaped insertion recesses 84 on their mutually facing inner sides, each of which extends downward from an upper edge 83 of the relevant support arm side wall 28.
  • the insertion recesses 84 are expediently produced by an embossing process and are dimensioned such that the distance between their two longitudinal edges or edge regions 86, which define the usable depth or width of the insertion recesses 84 and run parallel to one another, is identical or somewhat is greater than the width of the projections 62, so that the spindle abutment 48 with projections 62 extending perpendicular to the support arm side walls 28 can be inserted from above between the support arm side walls.
  • the insertion recesses 84 extend down to the level of the insertion regions 74 of the insertion openings 70, so that after the projections 62 have been inserted into the insertion recesses 84, the projections 62 can be inserted into the insertion regions 74 of the insertion openings 78 by pushing back the spindle abutment 48. whereupon, by pivoting the threaded spindle 32 into the position shown in FIGS. 1 and 2, the projections 62 can be brought between the edge regions 76 and 78 of the bearing region 72 of the suspension openings 70, as shown in FIGS. 1 and 2. It can also be seen from FIG. 2 that in this position the projections 62 are held between the edge regions 76 and 78 at least almost without play, but that they can, however, perform a pivoting or rotating movement about the transverse axis 90 defined by the edge regions 76 and 78.
  • FIGS. 5 and 6 and 7 The two further embodiments of the jack according to the invention, which are shown in FIGS. 5 and 6 and 7, are described below only insofar as they differ from the first embodiment according to FIGS. 1 to 4.
  • the same reference numerals were used in FIGS. 5 and 6 and 7 as in FIGS. 1 to 4, but with the addition of a dash (for the embodiment according to FIGS. 5 and 6) or two dashes (for the embodiment according to FIG. 7). .
  • the suspension openings 70 ' are designed and oriented in exactly the same way as in the embodiment according to FIGS. 1 to 4, while the insertion recesses 84' in which extend from the upper edges 83 'of the support arm side walls 28' into the latter
  • the side view of the jack is designed in the shape of a circular arc and its two longitudinal edges or edge regions 86 'are at a distance from one another which is equal to or slightly larger than the thickness of the projections 62 of the spindle abutment 48, since the insertion recesses 84' in this embodiment are not transverse to the insertion region 74 'of the hanging openings 70' end, but are oriented in their lower end region in the longitudinal direction of the insertion regions 74 '.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

Vehicle jack with a standing column (10), a supporting arm (24) attached to the standing column (10) to be pivotable about a first transverse axis (26), and also a threaded spindle (32) for pivoting the supporting arm (24) relative to the standing column (10), to which a nut (42) through which the threaded spindle (32) passes is attached above the first transverse axis (26) to be pivotable about a second transverse axis (44) parallel to the first transverse axis (26), the supporting arm (24) having two side walls (28) which are arranged at a distance from one another in the direction of the transverse axes and in between which the threaded spindle (32) extends obliquely from above and in which suspension openings (70) facing one another are provided, and with a spindle abutment (48) for the threaded spindle (32), which spindle abutment (48) is held between the supporting-arm side walls (28) to be pivotable about a third transverse axis (90) parallel to the two other transverse axes and is provided with projections (62) engaging in the suspension openings (70). In order to design the connection between threaded spindle (32) and supporting arm (24) to be free of play, the suspension openings (70) are formed in such a way that, in each angular position of the threaded spindle (32) relative to the supporting arm (24) possible upon actuation of the vehicle jack, the projections (62) are held between the edges (76, 78) of the suspension openings (70) at least virtually free of play in the longitudinal direction of the threaded spindle. <IMAGE>

Description

Die Erfindung betrifft einen Wagenheber mit einer Standsäule, einem an dieser um eine erste Querachse schwenkbar angebrachten Tragarm sowie einer Gewindespindel zum Verschwenken des Tragarms gegenüber der Standsäule, an der oberhalb der ersten Querachse eine von der Gewindespindel durchsetzte Mutter um eine zur ersten Querachse parallele zweite Querachse schwenkbar angebracht ist, wobei der Tragarm zwei in Richtung der Querachsen im Abstand voneinander angeordnete Seitenwände aufweist, zwischen die sich die Gewindespindel schräg von oben hinein erstreckt und in denen einander gegenüberliegende Einhängeöffnungen vorgesehen sind, deren Ränder in der Mutter zugewandten ersten Randbereichen kreisbogenförmig (konkav zum Öffnungsinneren) ausgebildet sind, und mit einem zwischen den Tragarmseitenwänden um eine zu den beiden anderen Querachsen parallele dritte Querachse schwenkbar gehaltenen Spindelwiderlager für die Gewindespindel, welches mit in die Einhängeöffnungen eingreifenden Vorsprüngen zur Anlage an den kreisbogenförmigen ersten Randbereichen der Einhängeöffnungen versehen ist. Insbesondere betrifft die Erfindung solche Wagenheber der vorstehend definierten Art, bei denen die Einhängeöffnungen identisch ausgebildet sind und einen in sich geschlossenen Rand haben, das heißt sich nicht bis zu den Kanten der Tragarmseitenwände erstrecken.The invention relates to a jack with a pedestal, a support arm attached to it pivotably about a first transverse axis and a threaded spindle for pivoting the support arm relative to the pedestal, on the above the first transverse axis a nut penetrated by the threaded spindle about a second transverse axis parallel to the first transverse axis is pivotally attached, the support arm having two side walls spaced apart from one another in the direction of the transverse axes, between which the threaded spindle extends obliquely from above and in which mutually opposite hook-in openings are provided, the edges of which in the mother-facing first edge regions are circular (concave to Interior of the opening) are formed, and with a spindle abutment for the threaded spindle which is held pivotably between the support arm side walls about a third transverse axis parallel to the other two transverse axes and which engages with the hanging openings The projections for bearing against the circular arc-shaped first edge regions of the suspension openings are provided. In particular, the invention relates to such jacks of the type defined above, in which the suspension openings are of identical design and have a self-contained edge, that is to say do not extend to the edges of the side walls of the support arm.

Ein solcher Wagenheber ist z. B. aus dem DE-GM 80 00 595.4 bekannt, während die DE-PS 27 56 108 Wagenheber mit randoffenen Einhängeöffnungen zeigt.Such a jack is such. B. known from DE-GM 80 00 595.4, while DE-PS 27 56 108 shows jacks with open-edge hanging openings.

Bei den erwähnten bekannten Wagenhebern der vorstehend definierten Art besteht das Spindelwiderlager aus zwei kreisringförmigen, von der Gewindespindel durchsetzten Scheiben, zwischen denen ein Kugelkäfig eines Axialkugellagers angeordnet ist und von denen die der Mutter zugekehrte Scheibe mit zwei einander diagonal gegenüberliegenden, zungenförmigen Ansätzen versehen ist, welche die vorstehend erwähnten Vorsprünge bilden und in die in den Tragarmseitenwänden vorgesehenen Einhängeöffnungen eingreifen. Die Gestalt der beiden identisch ausgebildeten Einhängeöffnungen entspricht ungefähr einem Kreis, dessen der Mutter zugewandte Bereich beim Hochschwenken des Tragarms einen der Vorsprünge des Spindelwiderlagers abstützt, während in den diagonal gegenüberliegenden Bereich dieses Kreises von unten ein langloch-artiger Öffnungsbereich einmündet, welcher einen Einführungsbereich zur leichten Montage des Spindelwiderlagers in den Tragarmseitenwänden bildet - jede der Einhängeöffnungen hat also ungefähr die Gestalt eines überdimensionalen Kommas. Zur Montage der Gewindespindel im Wagenheber wird diese zunächst von oben mit ihrem mit dem Spindelwiderlager versehenen Endbereich zwischen die Seitenwände des ein nach oben offenes U-Profil aufweisenden Tragarms eingeführt, wobei die mit den erwähnten Ansätzen versehene Scheibe des Spindelwiderlagers eine Stellung einnimmt, in der sich diese Ansätze nicht senkrecht, sondern vielmehr schräg zu den Tragarmseitenwänden erstrecken, so daß
sich das Spindelwiderlager samt seinen Ansätzen zwischen die Tragarmseitenwände einführen läßt und die Ansätze in die Einhängeöffnungen eingeschoben werden können - der eine Ansatz gelangt dabei in den Einführungsbereich der einen Einhängeöffnung, während sich der andere Ansatz direkt in den ungefähr kreisförmigen Bereich der anderen Einhängeöffnung einschieben läßt. Sodann wird die Gewindespindel oder das Spindelwiderlager so gedreht, daß beide Ansätze in den ungefähr kreisförmigen Bereichen der beiden Einhängeöffnungen zu liegen kommen, worauf die Mutter an der Standsäule montiert wird. Dreht man nun die Gewindespindel zum Hochschwenken des Tragarms, so legen sich die beiden Ansätze gegen die der Mutter zugewandten kreisbogenförmigen ersten Randbereiche der beiden Einhängeöffnungen an, welche Lagerflächen für die in der Ansicht quer zur Spindelachse ein ungefähr kreisbogenförmiges Profil aufweisenden Ansätze des Spindelwiderlagers bilden. Im Zuge des Hochschwenkens des Tragarms gleiten also die beiden Vorsprünge des Spindelwiderlagers den kreisbogenförmigen ersten Randbereichen der beiden Einhängeöffnungen entlang. Nachteilig an dieser Konstruktion ist es jedoch, daß bei unbelastetem Tragarm dieser um einen gewissen Winkel frei hin und her schwenkbar ist, was z. B. zu einem unerwünschten Klappern des im Fahrzeug weggestauten Wagenhebers führen kann.
In the known car jacks of the type defined above, the spindle abutment consists of two circular disks penetrated by the threaded spindle, between which a ball cage of an axial ball bearing is arranged and of which the disk facing the nut is provided with two diagonally opposite, tongue-shaped lugs, which form the above-mentioned projections and engage in the hook-in openings provided in the support arm side walls. The shape of the two identically designed hook-in openings corresponds approximately to a circle, the area facing the mother of which supports one of the projections of the spindle abutment when the support arm is swung up, while an oblong-hole-like opening area opens into the diagonally opposite area of this circle, which provides an insertion area for easy access Assembly of the spindle abutment in the side walls of the support arm forms - each of the suspension openings thus has approximately the shape of an oversized comma. To assemble the threaded spindle in the jack, it is first inserted from above with its end area provided with the spindle abutment between the side walls of the support arm, which has an upwardly open U-profile, the disc of the spindle abutment provided with the above-mentioned approaches assuming a position in which these approaches do not extend vertically, but rather diagonally to the side walls of the support arm, so that
the spindle abutment with its lugs can be inserted between the side walls of the support arm and the lugs can be inserted into the hanging openings - one lug comes into the insertion area of one hanging opening, while the other lug can be pushed directly into the approximately circular area of the other hanging opening. Then the threaded spindle or the spindle abutment is rotated so that both approaches come to lie in the approximately circular areas of the two suspension openings, whereupon the nut is mounted on the pedestal. If you turn the threaded spindle to swing the support arm up, the two lugs lie against the circular arc-shaped first edge areas of the two suspension openings facing the mother, which form bearing surfaces for the lugs of the spindle abutment which have an approximately circular arc-shaped profile in the view transverse to the spindle axis. In the course of the pivoting of the support arm, the two projections of the spindle abutment thus slide along the arcuate first edge regions of the two suspension openings. A disadvantage of this construction, however, is that when the support arm is unloaded, it can be freely pivoted back and forth by a certain angle, which, for. B. can lead to undesired rattling of the jack stowed away in the vehicle.

Zur Vermeidung dieses Nachteils ist bei dem in Figur 1 der DE-PS 27 56 108 gezeigten Wagenheber der am freien Tragarmende vorgesehene Lastkopf als im Querschnitt ungefähr W-förmiges Blechteil ausgebildet, welches mit seinem mittleren Bereich am Tragarm angeschweißt ist und mit seinem einen freien Schenkel das freie vordere Ende des Tragarms übergreift und ein zweites Widerlager für das vordere Spindelende bildet sowie die beiden Vorsprünge des Spindelwiderlagers gegen die kreisbogenförmigen ersten Randbereiche der beiden Einhängeöffnungen angelegt hält. Diese Maßnahme setzt jedoch nicht nur randoffene Einhängeöffnungen voraus, sondern auch eine ganz bestimmte Ausbildung des Lastkopfes, so daß sich diese Lösung z. B. nicht für solche Wagenheber eignet, bei denen, wie dies neuerdings gewünscht wird, der Lastkopf um eine Querachse schwenkbar am Tragarm angebracht ist.To avoid this disadvantage, in the jack shown in FIG. 1 of DE-PS 27 56 108, the load head provided on the free end of the support arm is designed as a sheet metal part which is approximately W-shaped in cross section and which is welded to the support arm with its central region and with its one free leg overlaps the free front end of the support arm and forms a second abutment for the front spindle end and holds the two projections of the spindle abutment against the circular arc-shaped first edge regions of the two suspension openings. However, this measure requires not only edge-open hook openings, but also a very specific design of the load head, so that this solution z. B. is not suitable for those jacks in which, as has recently been desired, the load head is pivotally mounted about a transverse axis on the support arm.

Der Erfindung lag nun die Aufgabe zugrunde, einen Wagenheber der eingangs erwähnten Art zu schaffen, welcher keine bestimmte Ausbildung des Lastkopfes voraussetzt, bei dem sich das Spindelwiderlager aber leicht in den Tragarm einhängen läßt und dennoch Klappergeräusche nicht auftreten können.The invention was an object of the invention to provide a jack of the type mentioned, which does not require a specific design of the load head, but in which the spindle abutment can be easily attached to the support arm and rattling noises can not occur.

Diese Aufgabe läßt sich erfindungsgemäß dadurch lösen, daß die Ränder der Einhängeöffnungen, den ersten Randbereichen gegenüberliegend, zweite Randbereiche aufweisen, welche so gestaltet und angeordnet sind, daß in jeder der beim Betätigen des Wagenhebers möglichen Winkelstellung der Gewindespindel relativ zum Tragarm die Vorsprünge des Spindelwiderlagers in Längsrichtung der Gewindespindel zumindest nahezu spielfrei zwischen den ersten und zweiten Randbereichen liegen. Bei dem erfindungsgemäßen Wagenheber verhindert also die Gestaltung der Einhängeöffnungen ein freies Hin- und Herschwenken des Tragarms gegenüber der Standsäule, nachdem die
Vorsprünge des Spindelwiderlagers in ihre Funktionsstellung innerhalb der Einhängeöffnungen gebracht worden sind.
This object can be achieved according to the invention in that the edges of the suspension openings, opposite the first edge regions, have second edge regions which are designed and arranged such that the projections of the spindle abutment in each of the possible angular positions of the threaded spindle relative to the support arm when the jack is actuated The longitudinal direction of the threaded spindle is at least almost free of play between the first and second edge regions. In the jack according to the invention, the design of the suspension openings thus prevents the support arm from freely pivoting back and forth relative to the pillar after the
Projections of the spindle abutment have been brought into their functional position within the suspension openings.

Bei bevorzugten Ausführungsformen des erfindungsgemäßen Wagenhebers sind auch die zweiten Randbereiche der Einhängeöffnungen kreisbogenförmig (konvex zum Öffnungsinneren) ausgebildet, um so gute Gleitflächen für die Widerlagervorsprünge auch an diesen zweiten Randbereichen zu schaffen; grundsätzlich wäre es aber natürlich möglich, die zweiten Randbereiche anders zu gestalten, z. B. so, daß sie mit mehreren Vorsprüngen gegen die von der Mutter abgewandten Flächen der Widerlagervorsprünge anliegen.In preferred embodiments of the jack according to the invention, the second edge regions of the suspension openings are also formed in a circular arc (convex to the interior of the opening) in order to create good sliding surfaces for the abutment projections also on these second edge regions; in principle, of course, it would be possible to design the second edge areas differently, e.g. B. so that they abut with several projections against the surfaces of the abutment projections facing away from the mother.

Bei dem erfindungsgemäßen Wagenheber werden die Einhängeöffnungen zweckmäßigerweise so gestaltet, daß sie an die ersten und zweiten Randbereiche anschließend jeweils einen Einführungsbereich aufweisen, welcher sich ungefähr in Richtung zum freien Tragarmende von den genannten Randbereichen wegerstreckt. Dadurch wird einerseits die Gefahr vermieden, daß bei irgendeiner Winkelstellung des Tragarms und unbelastetem Wagenheber die Widerlagervorsprünge in die Einführungsbereiche der Einhängeöffnungen gelangen können, andererseits lassen sich die Widerlagervorsprünge dennoch leicht in die Einhängeöffnungen einführen, wenn man die Gewindespindel mit ungefähr senkrecht zum Tragarmboden orientierter Spindelachse von oben zwischen die Tragarmseitenwände einführt, nachdem die mit den Vorsprüngen versehene Widerlagerscheibe so gedreht wurde, daß die Längserstreckung der beiden Vorsprünge nicht senkrecht zu den Tragarmseitenwänden verläuft, denn dann kann man auch bei dem erfindungsgemäßen Wagenheber den einen Widerlagervorsprung in den Einführungsbereich der einen Einhängeöffnung und den anderen Widerlagervorsprung in den an den Einführungsbereich angrenzenden Bereich der anderen Einhängeöffnung einschieben. Eine besonders einfache Montage ermöglicht dann jedoch eine bevorzugte Ausführungsform des erfindungsgemäßen Wagenhebers, bei der zum Einführen der Vorsprünge in die Einhängeöffnungen an den einander zugewandten Innenseiten der Tragarmseitenwände rinnenförmige Einführvertiefungen vorgesehen sind, welche sich von den Rändern der Tragarmseitenwände bis zu den Einführbereichen der Einhängeöffnungen erstrecken; bei einer solchen Ausführungsform können beim Einführen des Spindelwiderlagers zwischen die Tragarmseitenwände die Widerlagervorsprünge entlang der rinnenförmigen Einführvertiefungen bis an die Einhängeöffnungen herangeschoben und dann in diese eingeführt werden. Bei den rinnenförmigen Einführvertiefungen könnte es sich z. B. um Ausfräsungen handeln; viel billiger und ohne eine Schwächung des Tragarms läßt sich diese Ausführungsform jedoch dann herstellen, wenn die Einführvertiefungen als sickenförmige Prägungen der Tragarmseitenwände ausgebildet sind.In the jack according to the invention, the hanging openings are expediently designed such that they each have an insertion area at the first and second edge areas, which extends approximately in the direction of the free end of the support arm from the said edge areas. On the one hand, this avoids the risk that the abutment projections can get into the insertion areas of the hook-in openings at any angular position of the support arm and unloaded jack, on the other hand, the abutment projections can still be easily inserted into the hook-in openings if the threaded spindle with a spindle axis oriented approximately perpendicular to the support arm bottom is used introduces between the support arm side walls after the abutment disk provided with the projections is rotated in this way was that the longitudinal extent of the two projections does not run perpendicular to the side walls of the support arm, because then one can also insert one abutment projection into the insertion area of the one insertion opening and the other abutment projection into the area of the other insertion opening adjacent to the insertion area in the jack according to the invention. A particularly simple assembly then enables a preferred embodiment of the jack according to the invention, in which channel-shaped insertion recesses are provided for inserting the projections into the suspension openings on the mutually facing inner sides of the support arm side walls, which extend from the edges of the support arm side walls to the insertion regions of the suspension openings; in such an embodiment, when the spindle abutment is inserted between the side walls of the support arm, the abutment projections can be pushed along the channel-shaped insertion depressions up to the suspension openings and then inserted into them. In the trough-shaped insertion recesses it could, for. B. are millings; however, this embodiment can be produced much cheaper and without weakening the support arm if the insertion recesses are formed as bead-shaped embossments of the support arm side walls.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus den beigefügten Ansprüchen und/oder aus der nachfolgenden Beschreibung sowie der beigefügten zeichnerischen Darstellung mehrerer besonders vorteilhafter Ausführungsformen des erfindungsgemäßen Wagenhebers; in der Zeichnung zeigen:

Fig. 1
eine Seitenansicht einer ersten Ausführungsform des erfindungsgemäßen Wagenhebers, wobei der Tragarm in mehreren Stellungen dargestellt wurde;
Fig. 2
den Ausschnitt "A" aus Figur 1 in größerem Maßstab;
Fig. 3
eine Draufsicht auf den in Figur 2 dargestellten Bereich, gesehen in Richtung des Pfeils B in Figur 2;
Fig. 4
die mit den Vorsprüngen versehene Scheibe des Spindelwiderlagers des Wagenhebers gemäß Figur 1;
Fig. 5
eine der Figur 2 entsprechende Darstellung einer zweiten Ausführungsform, wobei jedoch nur der Tragarm dargestellt wurde;
Fig. 6
eine der Figur 3 entsprechende Draufsicht auf die zweite Ausführungsform, und
Fig. 7
eine den Figuren 2 und 5 entsprechende Darstellung einer dritten Ausführungsform.
Further features, advantages and details of the invention result from the appended claims and / or from the following description and the attached drawing of several particularly advantageous embodiments of the jack according to the invention; show in the drawing:
Fig. 1
a side view of a first embodiment of the jack according to the invention, wherein the support arm has been shown in several positions;
Fig. 2
the section "A" from Figure 1 on a larger scale;
Fig. 3
a plan view of the area shown in Figure 2, seen in the direction of arrow B in Figure 2;
Fig. 4
the disk provided with the projections of the spindle abutment of the jack according to FIG. 1;
Fig. 5
a representation corresponding to Figure 2 of a second embodiment, but only the support arm has been shown;
Fig. 6
a plan view corresponding to Figure 3 of the second embodiment, and
Fig. 7
a representation corresponding to Figures 2 and 5 of a third embodiment.

Die Figur 1 zeigt den gesamten Wagenheber mit einer Standsäule 10, welche zwei in Figur 1 hintereinander liegende Seitenwände 12 und einen diese miteinander verbindenden Rücken 14 und damit ein nach oben und vorn offenes U-Profil aufweist. Am unteren Ende der Standsäule ist ein Fuß 16 angeordnet, welcher gleichfalls zwei in Figur 1 hintereinander liegende Seitenwände 18 und einen diese miteinander verbindenden Boden 20 und damit ein nach oben offenes U-Profil aufweist. Er ist mit seinen Seitenwänden 18 an den Seitenwänden 12 der Standsäule 10 angelenkt, und zwar mittels zweier Niete 22 oder mittels eines durchgehenden und an seinen Enden vernieteten Stifts, so daß sich für den Fuß 16 eine senkrecht zur Zeichnungsebene der Figur 1 verlaufende Schwenkachse ergibt. Ein ebenfalls ein nach oben offenes U-Profil aufweisender Tragarm 24 ist mittels eines durchgehenden Stifts 26 an den Seitenwänden 12 der Standsäule 10 angelenkt; der Tragarm hat gleichfalls zwei in Figur 1 hintereinander liegende Seitenwände 28 und einen diese miteinander verbindenden Boden 30. Er greift zwischen die Standsäulenseitenwände 12 ein, und der Stift 26 erstreckt sich sowohl durch die Standsäulenseitenwände 12, als auch durch die Tragarmseitenwände 28 hindurch und ist an seinen Enden mit nicht mehr dargestellten Nietköpfen versehen; er definiert also eine erste Querachse, um die sich der Tragarm 24 relativ zur Standsäule 10 verschwenken läßt. Schließlich besitzt der Wagenheber eine Gewindespindel 32, welche vorn einen nietförmigen Kopf 34 und hinten eine Anlenkstelle 36 für eine Handkurbel 38 besitzt; dazwischen befindet sich ein Gewindeabschnitt 40, mit dem die Gewindespindel 32 in einer als Ganzes mit 42 bezeichneten Mutter läuft, die in bekannter und deshalb nicht näher zu erläuternden Weise in den Standsäulenseitenwänden 12 um eine zweite, senkrecht zur Zeichnungsebene der Figur 1 verlaufende Querachse 44 verschwenkbar gehalten ist.FIG. 1 shows the entire jack with a pedestal 10, which has two side walls 12 lying one behind the other in FIG. 1 and a back 14 connecting them to one another, and thus a U-profile open at the top and front. At the lower end of the pedestal a foot 16 is arranged, which likewise has two side walls 18 lying one behind the other in FIG. It is articulated with its side walls 18 to the side walls 12 of the pedestal 10, by means of two rivets 22 or by means of a continuous pin riveted to its ends, so that the foot 16 has a pivot axis running perpendicular to the plane of the drawing in FIG. A support arm 24, which also has an upwardly open U-profile, is articulated by means of a continuous pin 26 on the side walls 12 of the column 10; the support arm likewise has two side walls 28 lying one behind the other in FIG. 1 and a floor 30 connecting them to one another. It engages between the support column side walls 12, and the pin 26 extends through both the support column side walls 12 and through the support arm side walls 28 and is on its ends provided with rivet heads, no longer shown; it therefore defines a first transverse axis about which the support arm 24 can be pivoted relative to the standing column 10. Finally, the jack has a threaded spindle 32 which has a rivet-shaped head 34 at the front and a pivot point 36 for a hand crank 38 at the rear; in between is a threaded section 40 with which the threaded spindle 32 runs in a nut designated as a whole as 42, which can be pivoted in a known and therefore not explained manner in the column side walls 12 about a second transverse axis 44 running perpendicular to the plane of the drawing in FIG. 1 is held.

Zwischen einem von der Gewindespindel 32 durchgriffenen Distanzrohr 46 und dem Spindelkopf 34 ist ein als Ganzes mit 48 bezeichnetes Widerlager angeordnet, dessen Aufbau nunmehr anhand der Figuren 2 bis 4 näher erläutert werden soll.Arranged between a spacer tube 46 penetrated by the threaded spindle 32 and the spindle head 34 is an abutment, designated as a whole by 48, the construction of which will now be explained in more detail with reference to FIGS. 2 to 4.

Es besteht aus einer ersten, vorderen kreisringförmigen Scheibe 50, einer zweiten im wesentlichen kreisringförmigen Scheibe 52 und einem zwischen diesen beiden Scheiben angeordneten und mit Kugeln 54 versehenen, gleichfalls kreisringförmigen Kugelkäfig 56, wobei die Teile 50, 52 und 56 vom vorderen Endbereich der Gewindespindel 32 durchgriffen werden. Die zweite, in Figur 4 näher dargestellte Scheibe 52 besitzt außer einer Durchtrittsöffnung 58 für die Gewindespindel 32 und einer Laufbahn 60 für die Kugeln 54 zwei einander diagonal gegenüberliegende lappenförmige Ansätze oder Vorsprünge 62, deren Querschnitt ungefähr einem Teil eines Kreisringes entspricht und die infolgedessen in der Stirnansicht kreisbogenförmige innere und äußere Lagerflächen 64 bzw. 68 bilden.It consists of a first, front annular disk 50, a second essentially annular disk 52 and a likewise annular ball cage 56 arranged between these two disks and provided with balls 54, the parts 50, 52 and 56 from the front end region of the threaded spindle 32 be penetrated. The second disk 52, shown in more detail in FIG. 4, has, in addition to a passage opening 58 for the threaded spindle 32 and a raceway 60 for the balls 54, two diagonally opposite tab-shaped projections or projections 62, the cross section of which corresponds approximately to a part of a circular ring and which consequently in the End view circular and inner and outer bearing surfaces 64 and 68 form.

Erfindungsgemäß sind die beiden Tragarmseitenwände 28 mit einander gegenüberliegenden und identisch ausgebildeten Einhängeöffnungen 70 versehen (diese liegen in Figur 2 hintereinander), deren jede erfindungsgemäß wie folgt gestaltet ist:
Sie setzt sich aus einem Lagerbereich 72 und einem Einführungsbereich 74 zusammen; der Lagerbereich 72 wird in Richtung auf die Mutter 42 von einem ersten konkaven, kreisbogenförmigen Randbereich 76 und diesem gegenüberliegend von einem zweiten konvexen, kreisbogenförmigen Randbereich 78 begrenzt. Die beiden Kreisbögen sind insbesondere ungefähr konzentrisch zueinander und ihr Abstand voneinander ist erfindungsgemäß gleich oder nur geringfügig größer als der Abstand der beiden Lagerflächen 64 und 68 voneinander, d. h. als die Dicke der Vorsprünge 62 zwischen den Lagerflächen 64 und 68. Die beiden Randbereiche 76 und 78 jeder der beiden Einhängeöffnungen 70 gehen in zumindest ungefähr geradlinige und zueinander parallele Randbereiche 80 und 82 des Einführungsbereiches 74 über, und der Abstand der beiden Randbereiche 80, 82 voneinander ist gleich oder geringfügig größer als die maximale Dicke der Vorsprünge 62 der Scheibe 52 des Spindelwiderlagers 48. Außerdem ist die Länge des langlochartig gestalteten Einführungsbereiches 74 gleich oder etwas größer als die Breite der Vorsprünge 62 (gesehen in Richtung der von den beiden Vorsprüngen 62 definierten Achse).
According to the invention, the two support arm side walls 28 are provided with mutually opposite and identically designed suspension openings 70 (these are located one behind the other in FIG. 2), each of which is designed according to the invention as follows:
It is composed of a storage area 72 and an insertion area 74; the bearing area 72 is directed in the direction of the nut 42 from a first concave, circular arc-shaped edge area 76 and this delimited opposite by a second convex, circular arc-shaped edge region 78. The two circular arcs are, in particular, approximately concentric to one another and, according to the invention, their distance from one another is the same or only slightly greater than the distance between the two bearing surfaces 64 and 68, ie as the thickness of the projections 62 between the bearing surfaces 64 and 68. The two edge regions 76 and 78 each of the two hanging openings 70 merge into at least approximately rectilinear and mutually parallel edge regions 80 and 82 of the insertion region 74, and the distance between the two edge regions 80, 82 from one another is equal to or slightly greater than the maximum thickness of the projections 62 of the disk 52 of the spindle abutment 48 In addition, the length of the slot-shaped insertion region 74 is equal to or slightly larger than the width of the projections 62 (viewed in the direction of the axis defined by the two projections 62).

Nach einem weiteren Merkmal der Erfindung weisen die beiden Tragarmseitenwände 28 an ihren einander zugewandten Innenseiten rinnenförmige Einführungsvertiefungen 84 auf, deren jede sich von einem oberen Rand 83 der betreffenden Tragarmseitenwand 28 nach unten erstreckt. Zweckmäßigerweise werden die Einführungsvertiefungen 84 durch einen Prägevorgang hergestellt und so dimensioniert, daß der Abstand ihrer beiden die nutzbare Tiefe bzw. Breite der Einführungsvertiefungen 84 definierenden und parallel zueinander verlaufenden Längsränder oder Randbereiche 86 gleich oder etwas
größer ist als die Breite der Vorsprünge 62, so daß sich das Spindelwiderlager 48 mit sich senkrecht zu den Tragarmseitenwänden 28 erstreckenden Vorsprüngen 62 von oben zwischen die Tragarmseitenwände einführen läßt. Erfindungsgemäß erstrecken sich die Einführungsvertiefungen 84 nach unten bis auf das Niveau der Einführungsbereiche 74 der Einhängeöffnungen 70, so daß nach dem Einschieben der Vorsprünge 62 in die Einführungsvertiefungen 84 sich durch Zurückschieben des Spindelwiderlagers 48 dessen Vorsprünge 62 in die Einführungsbereiche 74 der Einhängeöffnungen 78 einschieben lassen, worauf durch Schwenken der Gewindespindel 32 in die in den Figuren 1 und 2 gezeigte Stellung die Vorsprünge 62 zwischen die Randbereiche 76 und 78 des Lagerbereiches 72 der Einhängeöffnungen 70 gebracht werden können, so wie dies die Figuren 1 und 2 darstellen. Aus Figur 2 wird auch ersichtlich, daß in dieser Stellung die Vorsprünge 62 zumindest nahezu spielfrei zwischen den Randbereichen 76 und 78 gehalten werden, daß sie jedoch eine Schwenk- oder Drehbewegung um die von den Randbereichen 76 und 78 definierte Querachse 90 ausführen können.
According to a further feature of the invention, the two support arm side walls 28 have channel-shaped insertion recesses 84 on their mutually facing inner sides, each of which extends downward from an upper edge 83 of the relevant support arm side wall 28. The insertion recesses 84 are expediently produced by an embossing process and are dimensioned such that the distance between their two longitudinal edges or edge regions 86, which define the usable depth or width of the insertion recesses 84 and run parallel to one another, is identical or somewhat
is greater than the width of the projections 62, so that the spindle abutment 48 with projections 62 extending perpendicular to the support arm side walls 28 can be inserted from above between the support arm side walls. According to the invention, the insertion recesses 84 extend down to the level of the insertion regions 74 of the insertion openings 70, so that after the projections 62 have been inserted into the insertion recesses 84, the projections 62 can be inserted into the insertion regions 74 of the insertion openings 78 by pushing back the spindle abutment 48. whereupon, by pivoting the threaded spindle 32 into the position shown in FIGS. 1 and 2, the projections 62 can be brought between the edge regions 76 and 78 of the bearing region 72 of the suspension openings 70, as shown in FIGS. 1 and 2. It can also be seen from FIG. 2 that in this position the projections 62 are held between the edge regions 76 and 78 at least almost without play, but that they can, however, perform a pivoting or rotating movement about the transverse axis 90 defined by the edge regions 76 and 78.

Die beiden weiteren Ausführungsformen des erfindungsgemäßen Wagenhebers, welche in den Figuren 5 und 6 bzw. 7 dargestellt sind, werden im folgenden nur noch insoweit beschrieben, als sie von der ersten Ausführungsform nach den Figuren 1 bis 4 abweichen. Außerdem wurden in den Figuren 5 und 6 bzw. 7 dieselben Bezugszeichen wie in den Figuren 1 bis 4 verwendet, jedoch unter Hinzufügung eines Striches (für die Ausführungsform nach den Figuren 5 und 6) bzw. zweier Striche (für die Ausführungsform nach Figur 7).The two further embodiments of the jack according to the invention, which are shown in FIGS. 5 and 6 and 7, are described below only insofar as they differ from the first embodiment according to FIGS. 1 to 4. In addition, the same reference numerals were used in FIGS. 5 and 6 and 7 as in FIGS. 1 to 4, but with the addition of a dash (for the embodiment according to FIGS. 5 and 6) or two dashes (for the embodiment according to FIG. 7). .

Bei der Ausführungsform nach den Figuren 5 und 6 sind die Einhängeöffnungen 70' genauso ausgebildet und orientiert wie bei der Ausführungsform nach den Figuren 1 bis 4, während die sich von den oberen Rändern 83' der Tragarmseitenwände 28' in letztere hinein erstreckenden Einführungsvertiefungen 84' in der Seitenansicht des Wagenhebers kreisbogenförmig gestaltet sind und ihre beiden Längsränder bzw. Randbereiche 86' einen Abstand voneinander aufweisen, welcher gleich oder geringfügig größer ist als die Dicke der Vorsprünge 62 des Spindelwiderlagers 48, da die Einführungsvertiefungen 84' bei dieser Ausführungsform nicht quer zum Einführungsbereich 74' der Einhängeöffnungen 70' enden, sondern in ihrem unteren Endbereich in Längsrichtung der Einführungsbereiche 74' orientiert sind.In the embodiment according to FIGS. 5 and 6, the suspension openings 70 'are designed and oriented in exactly the same way as in the embodiment according to FIGS. 1 to 4, while the insertion recesses 84' in which extend from the upper edges 83 'of the support arm side walls 28' into the latter The side view of the jack is designed in the shape of a circular arc and its two longitudinal edges or edge regions 86 'are at a distance from one another which is equal to or slightly larger than the thickness of the projections 62 of the spindle abutment 48, since the insertion recesses 84' in this embodiment are not transverse to the insertion region 74 'of the hanging openings 70' end, but are oriented in their lower end region in the longitudinal direction of the insertion regions 74 '.

Bei der Ausführungsform nach Figur 7 sind die Verhältnisse wieder ganz ähnlich wie bei der Ausführungsform nach den Figuren 1 bis 4, nur sind die Einhängeöffnungen 70'' und die Einführungsvertiefungen 84'' gegenüber der ersten Ausführungsform sozusagen nach hinten gekippt. Ansonsten gilt jedoch für die Dimensionierung der Einführungsvertiefungen 84'' und den Einführungsvorgang das zur ersten Ausführungsform Gesagte.In the embodiment according to FIG. 7, the conditions are again very similar to the embodiment according to FIGS. 1 to 4, only the hook-in openings 70 ″ and the insertion recesses 84 ″ are, as it were, tilted backwards compared to the first embodiment. Otherwise, however, what has been said about the first embodiment applies to the dimensioning of the insertion recesses 84 ″ and the insertion process.

Claims (8)

Wagenheber mit einer Standsäule, einem an dieser um eine erste Querachse schwenkbar angebrachten Tragarm sowie einer Gewindespindel zum Verschwenken des Tragarms gegenüber der Standsäule, an der oberhalb der ersten Querachse eine von der Gewindespindel durchsetzte Mutter um eine zur ersten Querachse parallele zweite Querachse schwenkbar angebracht ist, wobei der Tragarm zwei in Richtung der Querachsen im Abstand voneinander angeordnete Seitenwände aufweist, zwischen die sich die Gewindespindel schräg von oben hinein erstreckt und in denen einander gegenüberliegende Einhängeöffnungen vorgesehen sind, deren Ränder in der Mutter zugewandten ersten Randbereichen kreisbogenförmig (konkav zum Öffnungsinneren) ausgebildet sind, und mit einem zwischen den Tragarmseitenwänden um eine zu den beiden anderen Querachsen parallele dritte Querachse schwenkbar gehaltenen Spindelwiderlager für die Gewindespindel, welches mit in die Einhängeöffnungen eingreifenden Vorsprüngen zur Anlage an den kreisbogenförmigen ersten Randbereichen der Einhängeöffnungen versehen ist, dadurch gekennzeichnet, daß die Ränder der Einhängeöffnungen (70; 70'; 70''), den ersten Randbereichen (76; 76', 76'') gegenüberliegend, zweite Randbereiche (78; 78'; 78'') aufweisen, welche so gestaltet und angeordnet sind, daß in jeder der beim Betätigen des Wagenhebers möglichen Winkelstellung der Gewindespindel (32) relativ zum Tragarm (24) die Vorsprüge (62) in Längsrichtung der Gewindespindel zumindest nahezu spielfrei zwischen den ersten und zweiten Randbereichen liegen.Vehicle jack with a pedestal, a support arm attached to it pivotably about a first transverse axis, and a threaded spindle for pivoting the support arm relative to the pedestal, on which above the first transverse axis a nut penetrated by the threaded spindle is pivotable about a second transverse axis parallel to the first transverse axis, wherein the support arm has two side walls spaced apart from one another in the direction of the transverse axes, between which the threaded spindle extends obliquely from above and in which mutually opposite hook-in openings are provided, the edges of which in the mother-facing first edge regions are formed in a circular arc (concave to the interior of the opening) , and with a spindle abutment for the threaded spindle, which is held pivotably between the support arm side walls about a third transverse axis parallel to the other two transverse axes and which engages with projections engaging in the suspension openings is provided on the arcuate first edge regions of the hanging openings, characterized in that the edges of the hanging openings (70; 70 '; 70 ''), opposite the first edge regions (76; 76 ', 76''), have second edge regions (78; 78'; 78 ''), which are designed and arranged so that in each of the angular positions of the threaded spindle (32) relative to the support arm (24) possible when the jack is actuated, the projections (62) in the longitudinal direction of the threaded spindle lie at least almost free of play between the first and second edge regions. Wagenheber nach Anspruch 1, dadurch gekennzeichnet, daß auch die zweiten Randbereiche (78; 78'; 78'') kreisbogenförmig (konvex zum Öffnungsinneren) ausgebildet sind.Vehicle jack according to Claim 1, characterized in that the second edge regions (78; 78 '; 78' ') are also designed in the shape of a circular arc (convex to the interior of the opening). Wagenheber nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Einhängeöffnungen (70; 70'; 70'') an die ersten und zweiten Randbereiche (76, 78; 76', 78'; 76'', 78'') anschließend jeweils einen Einführungsbereich (74; 74'; 74'') aufweisen, welcher sich ungefähr in Richtung zum freien Tragarmende von den genannten Randbereichen wegerstreckt.Vehicle jack according to claim 1 or 2, characterized in that the suspension openings (70; 70 '; 70' ') adjoin the first and second edge regions (76, 78; 76', 78 '; 76' ', 78' ') in each case have an insertion area (74; 74 '; 74' ') which extends approximately in the direction of the free end of the support arm from said edge areas. Wagenheber nach Anspruch 3, dadurch gekennzeichnet, daß die Einhängeöffnungen (70; 70'; 70'') ungefähr spazierstockförmig gestaltet sind mit einem ungefähr U-förmigen Lagerbereich (72) und einem sich daran anschließenden, ungefähr geraden Einführungsbereich (74; 74'; 74'').Vehicle jack according to claim 3, characterized in that the suspension openings (70; 70 '; 70' ') are roughly shaped like walking sticks with an approximately U-shaped storage area (72) and an adjoining, approximately straight insertion area (74; 74'; 74 ''). Wagenheber nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß zum Einführen der Vorsprünge (62) in die Einhängeöffnungen (70; 70'; 70'') an den einander zugewandten Innenseiten der Tragarmseitenwände (28; 28'; 28'') rinnenförmige Einführungsvertiefungen (84; 84'; 84'') vorgesehen sind, welche sich von den freien Rändern (83; 83'; 83'') der Tragarmseitenwände bis zu den Einführungsbereichen (74; 74'; 74'') der Einhängeöffnungen (70; 70'; 70'') erstrecken.Vehicle jack according to claim 3 or 4, characterized in that for the insertion of the projections (62) into the suspension openings (70; 70 ';70'') on the mutually facing inner sides of the Support arm side walls (28; 28 ';28'') groove-shaped insertion recesses (84; 84'; 84 '') are provided, which extend from the free edges (83; 83 ';83'') of the support arm side walls to the insertion areas (74 ; 74 ';74'') of the suspension openings (70; 70'; 70 ''). Wagenheber nach Anspruch 5, dadurch gekennzeichnet, daß die Breite der Einführungsvertiefungen (84; 84'') mindestens gleich der Breite der Vorsprünge (62) ist, und daß sich die unteren Bereiche der Einführungsvertiefungen ungefähr senkrecht zur Längserstreckung der Einführungsbereiche (74; 74'') der Einhängeöffnungen (70; 70'') erstrecken.Vehicle jack according to claim 5, characterized in that the width of the insertion recesses (84; 84 '') is at least equal to the width of the projections (62), and that the lower regions of the insertion recesses are approximately perpendicular to the longitudinal extent of the insertion regions (74; 74 ' ') of the hanging openings (70; 70' '). Wagenheber nach Anspruch 5, dadurch gekennzeichnet, daß die Breite der Einführungsvertiefungen (84') mindestens gleich der Dicke der Vorsprünge (62) ist und sich die unteren Bereiche der Einführungsvertiefungen in Längsrichtung der Einführungsbereiche (74') der Einhängeöffnungen (70') erstrecken.Vehicle jack according to Claim 5, characterized in that the width of the insertion recesses (84 ') is at least equal to the thickness of the projections (62) and the lower regions of the insertion recesses extend in the longitudinal direction of the insertion regions (74') of the suspension openings (70 '). Wagenheber nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß die Einführungsvertiefungen (84; 84'; 84'') als sickenförmige Prägungen der Tragarmseitenwände (28; 28'; 28'') ausgebildet sind.Vehicle jack according to one of Claims 5 to 7, characterized in that the insertion recesses (84; 84 '; 84' ') are designed as bead-shaped embossments on the side walls of the support arm (28; 28'; 28 '').
EP92115326A 1991-09-11 1992-09-08 Vehicle jack Expired - Lifetime EP0536547B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4130108A DE4130108A1 (en) 1991-09-11 1991-09-11 CAR LIFT
DE4130108 1991-09-11

Publications (2)

Publication Number Publication Date
EP0536547A1 true EP0536547A1 (en) 1993-04-14
EP0536547B1 EP0536547B1 (en) 1996-08-14

Family

ID=6440296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115326A Expired - Lifetime EP0536547B1 (en) 1991-09-11 1992-09-08 Vehicle jack

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EP (1) EP0536547B1 (en)
DE (2) DE4130108A1 (en)
ES (1) ES2090434T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2734805A1 (en) * 1995-05-29 1996-12-06 Accessoires Automobiles Boomerang jack for raising vehicle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636571B1 (en) * 1993-07-27 1999-06-09 Batz, S. Coop. Ltda. Vehicle jack
EP0666235A1 (en) * 1993-07-27 1995-08-09 Batz, S. Coop. Ltda. Vehicle jack
DE4424837A1 (en) * 1994-03-12 1995-09-14 Storz E A Kg Vehicle hoist
FR2741059B1 (en) * 1995-11-13 1998-01-30 Bowden France Sa JACK COMPRISING AN IMPROVED BEARING MOUNTING FOR THE JACK OF THE JACK

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2273752A1 (en) * 1974-06-07 1976-01-02 Bilstein August JACK FOR MOTOR VEHICLES
DE2453260A1 (en) * 1974-11-09 1976-05-13 Teves Gmbh Alfred Lever-type jack used on vehicles - has a pivoting lifting arm raised by a screwed spindle working in a tilting component
DE2756108A1 (en) * 1977-12-16 1979-06-21 Storz E A Kg Spindle operated car jack - works with captive nut in pivoted lifting arm and with sprung support clamps
DE8000595U1 (en) * 1980-01-11 1981-07-02 E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen SPINDLE LIFT
DE3037934A1 (en) * 1980-10-08 1982-05-13 E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen Vehicle jack with hinging arm - has slots for spindle nut trunnions sloping downwards and inwards in leg

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2273752A1 (en) * 1974-06-07 1976-01-02 Bilstein August JACK FOR MOTOR VEHICLES
DE2453260A1 (en) * 1974-11-09 1976-05-13 Teves Gmbh Alfred Lever-type jack used on vehicles - has a pivoting lifting arm raised by a screwed spindle working in a tilting component
DE2756108A1 (en) * 1977-12-16 1979-06-21 Storz E A Kg Spindle operated car jack - works with captive nut in pivoted lifting arm and with sprung support clamps
DE8000595U1 (en) * 1980-01-11 1981-07-02 E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen SPINDLE LIFT
DE3037934A1 (en) * 1980-10-08 1982-05-13 E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen Vehicle jack with hinging arm - has slots for spindle nut trunnions sloping downwards and inwards in leg

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2734805A1 (en) * 1995-05-29 1996-12-06 Accessoires Automobiles Boomerang jack for raising vehicle

Also Published As

Publication number Publication date
EP0536547B1 (en) 1996-08-14
DE59206904D1 (en) 1996-09-19
ES2090434T3 (en) 1996-10-16
DE4130108A1 (en) 1993-03-18

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