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EP0529355B1 - Vehicle jack - Google Patents

Vehicle jack Download PDF

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Publication number
EP0529355B1
EP0529355B1 EP92113257A EP92113257A EP0529355B1 EP 0529355 B1 EP0529355 B1 EP 0529355B1 EP 92113257 A EP92113257 A EP 92113257A EP 92113257 A EP92113257 A EP 92113257A EP 0529355 B1 EP0529355 B1 EP 0529355B1
Authority
EP
European Patent Office
Prior art keywords
support element
support
load
bearing plate
jack
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.)
Expired - Lifetime
Application number
EP92113257A
Other languages
German (de)
French (fr)
Other versions
EP0529355A1 (en
Inventor
Peter Dipl.-Ing. Brosius
Willi Ing. Erschens
Wolfgang Metzen
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.)
ThyssenKrupp Bilstein GmbH
Original Assignee
August Bilstein GmbH
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 August Bilstein GmbH filed Critical August Bilstein GmbH
Publication of EP0529355A1 publication Critical patent/EP0529355A1/en
Application granted granted Critical
Publication of EP0529355B1 publication Critical patent/EP0529355B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/12—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S254/00—Implements or apparatus for applying pushing or pulling force
    • Y10S254/04—Object engaging heads for jacks

Definitions

  • the invention relates to a jack according to the preamble of claim 1.
  • Such a jack has a support plate which can be pivoted transversely to the longitudinal direction of the car. This ensures that the support plate is clearly positioned under the car, regardless of the position of the jack towards the center of the vehicle and regardless of the height of the raised car.
  • DE-C-39 21 826 shows such a jack.
  • the disadvantage of this jack is a one-sided contact of the support plate on the car when it is placed with its pedestal on an uneven floor in the longitudinal direction or when the car makes a forward or backward movement when lifting due to its chassis construction.
  • EP-A-0 469 234 shows a jack in which the support plate can be rotated to a limited extent about a vertical axis relative to the support element of the jack. This makes it possible for the jack to be placed on the floor in the longitudinal direction of the wagon when it is attached to the wagon, which represents a not inconsiderable risk of an accident.
  • the invention has for its object to further develop a jack according to DE-C-39 21 826 such that even misalignments in the longitudinal direction of the car are compensated can be without one-sided stresses that can damage the floor of the car by local pressures, but it is excluded that the jack rotates in the longitudinal direction of the car.
  • the design according to the invention advantageously reduces constraining forces on the jack. However, it is ensured that there is no twisting of the jack under the car can. The jack always stays in alignment.
  • the invention enables a flawless function but nevertheless a cost-effective solution and guarantees a maximum degree of swivel travel.
  • the swivel arm jack described has a support leg 1 and a support arm, which is pivotally connected to it via a joint 2, as a support element 3.
  • the support arm is raised relative to the supporting leg 1 via a threaded spindle 4.
  • the support leg stands on a base 5 on the floor 6.
  • a support plate 8 is arranged so as to be pivotable about a pivot axis 7 extending in the longitudinal direction of the carriage, which is placed under the carriage 9 and lifts it.
  • the support arm ends at its free end in two webs 10, 11 which are connected to a support pin 12 which extends in the direction of the pivot axis 7.
  • the swivel axis in turn runs alongside in the longitudinal direction of the car.
  • the support plate 8 is formed with holding loops 13, 14 which comprise the support pin 12 and thus form two swivel joints 15, 16.
  • the holding loops 13, 14 form an elongated hole, the narrow sides lying horizontally on the support pin 12, but permitting movement of the support plate in the vertical direction.
  • a convex embossing on the underside of the support plate, which is supported on the support pin 12, is provided as a support element 17 between the support plate 8 and the support pin 12 in the middle between the holding loops 13, 14.
  • the embossing has a height 18 which is approximately half the difference between the length and the width of the elongated hole in the holding loops 13, 14 corresponds.
  • jacks such as scissor jacks or double-joint jacks
  • the support element 3 is, for example, the head of the jack.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Handcart (AREA)
  • Body Structure For Vehicles (AREA)
  • Jib Cranes (AREA)
  • Bridges Or Land Bridges (AREA)

Description

Die Erfindung betrifft einen Wagenheber nach dem Oberbegriff des Anspruchs 1.The invention relates to a jack according to the preamble of claim 1.

Ein derartiger Wagenheber weist eine quer zur Wagenlängsrichtung schwenkbare Tragplatte auf. Dadurch wird eine eindeutige Anlage der Tragplatte unter dem Wagen, unabhängig von der Stellung des Wagenhebers in Richtung auf die Fahrzeugmitte und unabhängig von der Höhe des angehobenen Wagens gewährleistet.Such a jack has a support plate which can be pivoted transversely to the longitudinal direction of the car. This ensures that the support plate is clearly positioned under the car, regardless of the position of the jack towards the center of the vehicle and regardless of the height of the raised car.

Die DE-C-39 21 826 zeigt einen derartigen Wagenheber. Nachteilig bei diesem Wagenheber kommt es zu einer einseitigen Anlage der Tragplatte am Wagen, wenn er mit seinem Standfuß auf einen in Wagenlängsrichtung unebenen Boden gesetzt wird oder wenn der Wagen beim Anheben aufgrund seiner Fahrwerkskonstruktion eine Vorwärts- oder Rückwärtsbewegung macht. Die EP-A-0 469 234 zeigt einen Wagenheber, bei dem die Tragplatte gegenüber dem Tragelement des Wagenhebers um eine vertikale Achse in einem begrenzten Maß verdrehbar ist. Dadurch ist es möglich, daß der Wagenheber bereits beim Ansetzen am Wagen verdreht zur Wagenlängsrichtung am Boden aufgesetzt werden kann, was ein nicht unerhebliches Unfallrisiko darstellt.DE-C-39 21 826 shows such a jack. The disadvantage of this jack is a one-sided contact of the support plate on the car when it is placed with its pedestal on an uneven floor in the longitudinal direction or when the car makes a forward or backward movement when lifting due to its chassis construction. EP-A-0 469 234 shows a jack in which the support plate can be rotated to a limited extent about a vertical axis relative to the support element of the jack. This makes it possible for the jack to be placed on the floor in the longitudinal direction of the wagon when it is attached to the wagon, which represents a not inconsiderable risk of an accident.

Der Erfindung liegt die Aufgabe zugrunde, ein Wagenheber nach der DE-C-39 21 826 derartig weiter zu bilden, daß auch Schiefstellungen in Wagenlängsrichtung ausgeglichen werden können ohne das es zu einseitigen Beanspruchungen kommt, die den Wagenboden durch örtliche Pressungen beschädigen können, wobei jedoch ausgeschlossen wird, daß sich der Wagenheber in Wagenlängsrichtung verdreht.The invention has for its object to further develop a jack according to DE-C-39 21 826 such that even misalignments in the longitudinal direction of the car are compensated can be without one-sided stresses that can damage the floor of the car by local pressures, but it is excluded that the jack rotates in the longitudinal direction of the car.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind in den Ansprüchen 2 und 3 beschrieben.This object is achieved by the features of claim 1. Advantageous further developments are described in claims 2 and 3.

Durch die erfindungsgemäße Ausbildung werden vorteilhaft Zwangskräfte auf den Wagenheber vermindert. Es ist jedoch sichergestellt, daß kein Verdrehen des Wagenhebers unter dem Wagen eintreten kann. Der Wagenheber bleibt immer in Wagenflucht. Die Erfindung ermöglicht eine einwandfreie Funktion aber trotzdem kostengünstige Lösung und garantiert ein Höchstmaß an Schwenkweg.The design according to the invention advantageously reduces constraining forces on the jack. However, it is ensured that there is no twisting of the jack under the car can. The jack always stays in alignment. The invention enables a flawless function but nevertheless a cost-effective solution and guarantees a maximum degree of swivel travel.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen

Fig. 1:
die systematische Darstellung eines Schwenkarmwagenhebers,
Fig. 2:
eine Ansicht der Anbindung der Tragplatte an den Tragarm und
Fig. 3:
die Seitenansicht zu Fig. 2.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it
Fig. 1:
the systematic representation of a swivel arm jack,
Fig. 2:
a view of the connection of the support plate to the support arm and
Fig. 3:
the side view of Fig. 2nd

Der beschriebene Schwenkarmwagenheber weist ein Standbein 1 und ein über ein Gelenk 2 drehbeweglich an diesem angebundenen Tragarm als Tragelement 3 auf. Über eine Gewindespindel 4 wird der Tragarm gegenüber dem Standbein 1 angehoben. Das Standbein steht auf einem Standfuß 5 auf dem Boden 6 auf. Am freien Ende des Tragarms als Tragelement 3 ist schwenkbeweglich über eine in Wagenlängsrichtung verlaufende Schwenkachse 7 eine Tragplatte 8 angeordnet, die unter dem Wagen 9 angesetzt wird und diesen anhebt.The swivel arm jack described has a support leg 1 and a support arm, which is pivotally connected to it via a joint 2, as a support element 3. The support arm is raised relative to the supporting leg 1 via a threaded spindle 4. The support leg stands on a base 5 on the floor 6. At the free end of the support arm as a support element 3, a support plate 8 is arranged so as to be pivotable about a pivot axis 7 extending in the longitudinal direction of the carriage, which is placed under the carriage 9 and lifts it.

Der Tragarm läuft an seinem freien Ende in zwei Stegen 10, 11 aus, die mit einem Tragstift 12 verbunden sind, der in Richtung der Schwenkachse 7 verläuft. Die Schwenkachse wiederum verläuft daneben in Wagenlängsrichtung. Die Tragplatte 8 ist mit Halteschlaufen 13, 14 ausgebildet, die den Tragstift 12 umfassen und damit zwei Schwenkgelenke 15, 16 bilden. Die Halteschlaufen 13, 14 bilden ein Langloch, wobei die Schmalseiten horizontal am Tragstift 12 anliegen, jedoch eine Bewegung der Tragplatte in vertikaler Richtung zulassen. Mittig zwischen den Halteschlaufen 13, 14 ist als Abstützelement 17 zwischen Tragplatte 8 und Tragstift 12 eine konvexe Prägung an der Unterseite der Tragplatte vorgesehen, die sich auf den Tragstift 12 abstützt. Die Prägung hat eine Höhe 18, die etwa der Hälfte der Differenz von Länge zur Breite des Langloches in den Halteschlaufen 13, 14 entspricht. Durch diese Ausbildung kann die Tragplatte 8 gegenüber dem Tragelement 3 nicht nur quer zur Wagenlängsrichtung geschwenkt werden, sondern auch eine begrenzte Nickbewegung in Wagenlängsrichtung durchführen. Trotzdem ist sichergestellt, daß der Wagenheber sich gegenüber dem Fahrzeug nicht verdrehen kann, da der Tragstift 12 horizontal eindeutig in den Halteschlaufen 13, 14 geführt ist.The support arm ends at its free end in two webs 10, 11 which are connected to a support pin 12 which extends in the direction of the pivot axis 7. The swivel axis in turn runs alongside in the longitudinal direction of the car. The support plate 8 is formed with holding loops 13, 14 which comprise the support pin 12 and thus form two swivel joints 15, 16. The holding loops 13, 14 form an elongated hole, the narrow sides lying horizontally on the support pin 12, but permitting movement of the support plate in the vertical direction. A convex embossing on the underside of the support plate, which is supported on the support pin 12, is provided as a support element 17 between the support plate 8 and the support pin 12 in the middle between the holding loops 13, 14. The embossing has a height 18 which is approximately half the difference between the length and the width of the elongated hole in the holding loops 13, 14 corresponds. As a result of this design, the support plate 8 can not only be pivoted transversely to the longitudinal direction of the carriage with respect to the supporting element 3, but can also perform a limited pitching movement in the longitudinal direction of the carriage. Nevertheless, it is ensured that the jack cannot rotate relative to the vehicle, since the support pin 12 is clearly guided horizontally in the holding loops 13, 14.

Wenn besondere Anforderungen hinsichtlich der Begrenzung des Nickwinkels oder der Krafteinleitung von der Tragplatte 8 auf das Tragelement 3 gegeben sind, werden ein oder mehrere Abstützelemente 17 nach den Erfordernissen an geeigneten Stellen zwischen Tragplatte 8 und Tragstift 12 angeordnet. Diese Ausbildung ist nicht zeichnerisch dargestellt.If there are special requirements with regard to the limitation of the pitch angle or the introduction of force from the support plate 8 to the support element 3, one or more support elements 17 are arranged according to the requirements at suitable locations between the support plate 8 and the support pin 12. This training is not shown in the drawing.

Die Ausbildung anderer Wagenheberbauformen, wie beispielsweise Scherenwagenheber oder Doppelgelenk-Wagenheber, kann in gleicher Weise erfolgen. In dem Fall ist das Tragelement 3 beispielsweise der Kopf des Wagenhebers.Other types of jacks, such as scissor jacks or double-joint jacks, can be designed in the same way. In this case, the support element 3 is, for example, the head of the jack.

BezugszeichenReference numerals

11
StandbeinMainstay
22nd
Gelenkjoint
33rd
TragelementSupport element
44th
GewindespindelThreaded spindle
55
StandfußPedestal
66
Bodenground
77
SchwenkachseSwivel axis
88th
TragplatteSupport plate
99
Wagendare
1010th
Stegweb
1111
Stegweb
1212th
TragstiftSupport pin
1313
HalteschlaufeWrist strap
1414
HalteschlaufeWrist strap
1515
SchwenkgelenkSwivel joint
1616
SchwenkgelenkSwivel joint
1717th
AbstützelementSupport element
1818th
Höhe der PrägungEmbossing height

Claims (3)

  1. Vehicle jack having a base foot (5), which stands on the ground (6), and a load-bearing plate (8) which is height adjustable in a first plane and raises the motor vehicle (9), which load-bearing plate is connected by way of two pivot joints (15, 16), which consist in each case of a retaining loop which encompasses a support pin (12) as a pivot axis, to a support element (3) of the vehicle jack in such a way as to be able to pivot transversely to the pivot axis (7) which extends transversely to the first plane, characterised in that at least one support element (17) is disposed between the load-bearing plate (8) and bearing element (3) at or between the pivot joints (15, 16), wherein the pivot joints (15, 16) allow a limited pitch movement of the load-bearing plate (8) in a second plane which extends transversely to the first plane, that the pivot joints (15, 16) are formed in such a manner that the retaining loops (13, 14) extend vertically as an elongated hole.
  2. Vehicle jack according to claim 1, characterised in that the load-bearing plate (8) comprises a projection as a support element (17) in the direction towards the support element (3).
  3. Vehicle jack according to claim 1 or claim 2, characterised in that the support element (17) is disposed approximately in the middle between the pivot joints (15, 16).
EP92113257A 1991-08-22 1992-08-04 Vehicle jack Expired - Lifetime EP0529355B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4127739 1991-08-22
DE4127739A DE4127739C2 (en) 1991-08-22 1991-08-22 Jack

Publications (2)

Publication Number Publication Date
EP0529355A1 EP0529355A1 (en) 1993-03-03
EP0529355B1 true EP0529355B1 (en) 1995-07-12

Family

ID=6438806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113257A Expired - Lifetime EP0529355B1 (en) 1991-08-22 1992-08-04 Vehicle jack

Country Status (9)

Country Link
US (1) US5217206A (en)
EP (1) EP0529355B1 (en)
BR (1) BR9203290A (en)
CZ (1) CZ281981B6 (en)
DE (2) DE4127739C2 (en)
ES (1) ES2038098T3 (en)
MX (1) MX9204848A (en)
YU (1) YU75392A (en)
ZA (1) ZA926100B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1024192Y (en) * 1993-03-30 1994-04-16 Tub Sa AUTOMATIC AND REINFORCING STABILIZING DEVICE FOR LIFTING JACKS.
US5386969A (en) * 1994-05-19 1995-02-07 Ventra Group Inc. Plastic load rest for a jack
IT1279749B1 (en) * 1995-05-26 1997-12-16 Fiat Auto Spa LIFTING JACK FOR A VEHICLE.
DE10053860B4 (en) * 2000-10-31 2010-10-28 Brano Wagenheber Gmbh Movement nut for a lifting device and lifting device
CN102092652B (en) * 2011-03-02 2012-11-28 上海交通大学 Rescue ram with auxiliary device
US9108830B2 (en) 2013-08-01 2015-08-18 A & A Attachments, Llc Secure connection load-rest for a ground-engaging vehicle jack
DE102016002096A1 (en) 2016-02-20 2017-08-24 Fes Gmbh Fahrzeug-Entwicklung Sachsen jack

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672243A (en) * 1951-10-17 1954-03-16 Ben Goldberg Jack with adjustable load-receiving table
US3259367A (en) * 1964-01-13 1966-07-05 Superior Scaffold Co Shoring jack
US3802658A (en) * 1972-07-19 1974-04-09 Beatrice Foods Co Jack stand
DE3724113A1 (en) * 1986-12-09 1988-06-16 Tub Sa Mechanical jack for lifting automobiles
DE3921826C1 (en) * 1989-07-03 1990-09-06 August Bilstein Gmbh & Co Kg, 5828 Ennepetal, De
ES1013831Y (en) * 1990-04-10 1991-06-16 Salvador Rovira Xavier IMPROVED MECHANICAL JACK FOR AUTOMOBILE VEHICLES.
ES1014898Y (en) * 1990-07-30 1991-11-16 Salvador Rovira Xavier PERFECTED MECHANICAL JACK FOR AUTOMOBILE VEHICLES.

Also Published As

Publication number Publication date
BR9203290A (en) 1993-04-06
DE4127739C2 (en) 1993-11-11
YU75392A (en) 1995-10-24
MX9204848A (en) 1993-01-01
CZ281981B6 (en) 1997-04-16
DE59202862D1 (en) 1995-08-17
EP0529355A1 (en) 1993-03-03
US5217206A (en) 1993-06-08
DE4127739A1 (en) 1993-02-25
CZ252592A3 (en) 1993-03-17
ES2038098T1 (en) 1993-07-16
ES2038098T3 (en) 1995-09-16
ZA926100B (en) 1993-03-02

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