EP0443383A1 - Cric - Google Patents

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Publication number
EP0443383A1
EP0443383A1 EP91101741A EP91101741A EP0443383A1 EP 0443383 A1 EP0443383 A1 EP 0443383A1 EP 91101741 A EP91101741 A EP 91101741A EP 91101741 A EP91101741 A EP 91101741A EP 0443383 A1 EP0443383 A1 EP 0443383A1
Authority
EP
European Patent Office
Prior art keywords
bearing
support arm
load
bearing shell
load bearing
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
EP91101741A
Other languages
German (de)
English (en)
Other versions
EP0443383B1 (fr
Inventor
Selahattin Ipekbayrak
Rüdiger Thomas
Wolfgang Gröf
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
Lahnwerk and Co KG Verformungstechnik Friedensdorf GmbH
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 Lahnwerk and Co KG Verformungstechnik Friedensdorf GmbH, August Bilstein GmbH filed Critical Lahnwerk and Co KG Verformungstechnik Friedensdorf GmbH
Priority to AT91101741T priority Critical patent/ATE91113T1/de
Publication of EP0443383A1 publication Critical patent/EP0443383A1/fr
Application granted granted Critical
Publication of EP0443383B1 publication Critical patent/EP0443383B1/fr
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
    • 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

Definitions

  • the invention relates to a jack with a pedestal, at the lower end of which a foot is pivoted about a transverse axis and in the central region of which a support arm is also pivoted about a transverse axis, the free end of which can be adjusted in height by means of a spindle drive operated by hand crank and on bearing surfaces with part-circular cross-section carries a tiltable load bearing with a congruently shaped base for bearing, the load bearing for reaching under a body sill seam web or the like component has an upwardly open channel running parallel to the pivot axis of the support arm.
  • DE-PS 29 54 496 shows a jack with these generic features. An essential part of this Features have been described there as prior art.
  • the foot is fixed immovably at the lower end of the pillar.
  • the foot being articulated about a transverse axis on the pedestal.
  • the support arm is designed as a U-profile open at the top.
  • the side legs of the U-profile have recesses at the end of the support arm in the form of partially circular bearing surfaces molded into the profile side legs, each of which forms a bearing shell with very narrow bearing surfaces.
  • the so-called horn - the load receiver - is made in one piece from a sheet metal part, which forms a jacket with a partially circular cross section, which leaves open a groove serving as load receiver at the top.
  • the horn is mounted with its end regions in the recesses of the support arm side legs forming the bearing surfaces so as to be rotatable about its longitudinal axis within a specific circular sector and is secured on the end face against detachment from its bearing. Flaps protruding outwards or inwards from the jacket of the horn serve to support a body sill seam web.
  • the horn serving as the load receiver of the jack, the object is to be achieved in such a jack as small a distance as possible of the load-bearing horn top from the transverse axis about which the horn can be rotated.
  • Such a jack is very simple and cheap to manufacture.
  • disadvantages in use must be accepted for this cheapness:
  • the jack is used with the pedestal tilted very far. In the "up" position, however, it is much steeper. However, it should have a safe stand both in the strongly inclined use position and in the only slightly inclined "up” position.
  • the foot which is immovably fastened to the lower end of the pedestal, is provided with two standing surfaces which abut one another at an obtuse angle.
  • One standing surface lies flat on the floor in the use position of the jack, while the other standing surface lies flat on the floor in the "up” position.
  • the pedestal tilts from one standing surface over the angular edge to the other standing surface, which results in an unsafe position of the jack during the lifting process.
  • the load bearing of the jack which is referred to as a horn, cannot be moved about the transverse axis of the vehicle to be lifted.
  • the vehicle When the vehicle is raised in a wheel area, it is inclined on its side about its transverse axis.
  • the jack can only follow this inclination in that the pedestal also tilts against the non-raised wheel on the same side of the vehicle, which leads to a further impairment of the jack's stability.
  • Another feature that also affects the safety of the jack when used frequently is the storage of the horn. It is mounted on the very narrow cut surfaces in the side legs of the U-profile from which the support arm is made. So there is a large surface pressure with which the horn rubs on its bearing surfaces as it rotates during the lifting process. This can lead to premature unusability of the jack if it is used frequently over a longer period of time with the formation of rust.
  • a jack is an accessory that is normally only used rarely or not at all if the seasonal wheel changes are carried out in the workshop. It should therefore be as cheap as possible.
  • a jack that is easy to handle and functionally reliable, even in difficult terrain, can pay for itself even when used rarely, if wheel changes are required when traveling.
  • the invention is therefore based on the object of providing a jack which, on the one hand, is simple in construction and inexpensive to produce, but on the other hand ensures high safety in use even with frequent use over a long period of time and easy handling. It is particularly important that the jack has a secure stand even on uneven ground in any position during a lifting process and that the load pick-up at the end of the support arm undercuts the section of the body sill seam web provided for the approach of the jack.
  • the known articulated connection of the foot to the pedestal in connection with the ball joint-like connection of the load bearing at the end of the support arm has the advantage that the jack stands firmly and securely even on uneven ground during the entire lifting process.
  • the ball joint-like design of the connection of the load suspension to the end of the support arm has the advantage that the increasing inclination of the raised vehicle side around the vehicle transverse axis during the lifting process does not adversely affect the stability of the jack and the connection of the load suspension to the vehicle part under attack affects.
  • the large-area bearing of the load receiver at the end of the support arm prevents friction damage on the contact surfaces of these two parts.
  • the oval opening in the bottom of the spherical bearing surface on the support arm ensures that the load in its bearing can follow the inclinations of the raised vehicle both about its longitudinal axis and about its transverse axis. As a result, it always has a cant-free connection to the vehicle part, e.g. the body sill seam.
  • the jack consists of a pedestal 1, at the lower end of which a foot 2 is articulated about a transverse axis 3 and in the central region of which a support arm 4 is also articulated about a transverse axis 5 .
  • Its free end 4a can be adjusted in height by means of a spindle drive 7 which can be actuated by a hand crank 6.
  • a load receiver 8 is attached to it, which, when attached, engages under a component of the vehicle to be lifted which is intended to be supported on the jack, for example a body sill seam web 9 .
  • the connection of the load bearing 8 to the free end 4a of the support arm 4 is designed like a ball joint.
  • the load holder 8 is designed as an injection molded part made of plastic. It has on its upper side a transversely running channel 8a, in which the underpinned vehicle part, for example body sill seam web 9, rests. On its underside it has a bearing shoulder 8b in the form of a spherical section. This lies in a bearing shell 10 arranged at the free end 4a of the support arm 4 in the form of a dome congruent with the bearing shoulder 8b . This is designed as a steel sheet molded part and welded to the end of the support arm.
  • An opening 11 is provided in the central region of the bearing shell 10 , while a downward-pointing connecting bolt 12 is arranged in the bearing shoulder 8b of the load receiver 8 .
  • the cross section of the opening 11 in the bearing shell 10 is larger than the cross section of the connecting bolt 12 and has one in the direction of the support arm 4 elongated oval shape.
  • the end of the connecting bolt 12 protrudes through the opening 11 at the bottom out of the bearing shell 10 and is provided with an abutment 13 which is supported on the underside of the bearing shell 10 and is in the form of a disk which is fixed to the connecting bolt 12 by riveting the bolt end.
  • the other end of the connecting bolt 12 is cast into the load holder and thus firmly anchored in it.
  • the bearing shoulder 8b of the load bearing 8 is clad with a spherical cap 81 designed as a sheet steel molded part.
  • the bearing shell 10 is welded with its lower part into the support arm 4, which is designed as an upwardly open U-profile, between the profile side legs in bulges thereof.
  • Fig. 4 shows another embodiment, wherein the bearing shell 10 ' in two opposite circumferential areas in the direction of the support arm 4 has a downwardly curved edge 10'b , with which it is on the edges of the profile side legs of the U-profile open as upwards trained support arm 4 is welded.

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)
  • Body Structure For Vehicles (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Magnetic Heads (AREA)
  • Auxiliary Devices For Music (AREA)
  • Vehicle Body Suspensions (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Jib Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Surgical Instruments (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
EP91101741A 1990-02-21 1991-02-08 Cric Expired - Lifetime EP0443383B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91101741T ATE91113T1 (de) 1990-02-21 1991-02-08 Wagenheber.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4005447A DE4005447A1 (de) 1990-02-21 1990-02-21 Wagenheber
DE4005447 1990-02-21

Publications (2)

Publication Number Publication Date
EP0443383A1 true EP0443383A1 (fr) 1991-08-28
EP0443383B1 EP0443383B1 (fr) 1993-06-30

Family

ID=6400656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101741A Expired - Lifetime EP0443383B1 (fr) 1990-02-21 1991-02-08 Cric

Country Status (9)

Country Link
US (1) US5125627A (fr)
EP (1) EP0443383B1 (fr)
JP (1) JPH08188391A (fr)
KR (1) KR910021336A (fr)
AT (1) ATE91113T1 (fr)
CA (1) CA2036849A1 (fr)
DE (2) DE4005447A1 (fr)
ES (1) ES2042316T3 (fr)
HU (1) HU205324B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565801A1 (fr) * 1992-04-14 1993-10-20 E.P.I., EUROPEENNE DE PARTICIPATIONS INDUSTRIELLE, Société Anonyme Cric pour véhicules
EP0622329A1 (fr) * 1993-03-30 1994-11-02 Tub S.A. Dispositif pour stabiliser automatiquement et renforcer des crics de véhicules
ITUA20161383A1 (it) * 2016-03-04 2017-09-04 Brasola S R L Sollevatore per veicoli.

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228651A (en) * 1990-10-22 1993-07-20 The United States Of America As Represented By The Secretary Of The Army Roll up jack stand
ES2096541T3 (es) * 1995-06-20 2005-02-01 Thyssenkrupp Bilstein Gmbh Elevador de vehiculos.
CN114801279B (zh) * 2022-04-27 2023-02-03 金丰（中国）机械工业有限公司 一种多点压力机的曲轴相位调整方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR531606A (fr) * 1921-03-03 1922-01-17 Cric hydraulique
FR546204A (fr) * 1922-01-09 1922-11-03 Cric
US2613440A (en) * 1950-03-20 1952-10-14 Addie P Murray Articulator for making artificial dentures
DE3111861A1 (de) * 1981-03-26 1982-10-14 Gerd 5000 Köln Natt Vorrichtung zum befestigen von mit einem sockel versehenen gebissmodellen am modelltraeger eines artikulators
AT375621B (de) * 1980-11-03 1984-08-27 Voest Alpine Ag Schraubengetriebe, insbesondere schraubenwinde
GB2176458A (en) * 1985-05-10 1986-12-31 Metallifacture Ltd Vehicle jacks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB155084A (en) * 1919-10-27 1920-12-16 Edward Moulds An improved adjustable vice
US2997762A (en) * 1958-07-25 1961-08-29 Jack G Imparato Clamp units
GB2053846B (en) * 1979-07-12 1983-03-09 Metallifacture Ltd Vehicle jacks

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR531606A (fr) * 1921-03-03 1922-01-17 Cric hydraulique
FR546204A (fr) * 1922-01-09 1922-11-03 Cric
US2613440A (en) * 1950-03-20 1952-10-14 Addie P Murray Articulator for making artificial dentures
AT375621B (de) * 1980-11-03 1984-08-27 Voest Alpine Ag Schraubengetriebe, insbesondere schraubenwinde
DE3111861A1 (de) * 1981-03-26 1982-10-14 Gerd 5000 Köln Natt Vorrichtung zum befestigen von mit einem sockel versehenen gebissmodellen am modelltraeger eines artikulators
GB2176458A (en) * 1985-05-10 1986-12-31 Metallifacture Ltd Vehicle jacks

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565801A1 (fr) * 1992-04-14 1993-10-20 E.P.I., EUROPEENNE DE PARTICIPATIONS INDUSTRIELLE, Société Anonyme Cric pour véhicules
EP0622329A1 (fr) * 1993-03-30 1994-11-02 Tub S.A. Dispositif pour stabiliser automatiquement et renforcer des crics de véhicules
ITUA20161383A1 (it) * 2016-03-04 2017-09-04 Brasola S R L Sollevatore per veicoli.
WO2017149504A1 (fr) * 2016-03-04 2017-09-08 Brasola S.R.L. Cric de voiture
CN108883920A (zh) * 2016-03-04 2018-11-23 奥佩纳克西斯有限公司 汽车千斤顶

Also Published As

Publication number Publication date
HU910562D0 (en) 1991-09-30
HUT56789A (en) 1991-10-28
DE4005447A1 (de) 1991-08-22
ES2042316T3 (es) 1993-12-01
HU205324B (en) 1992-04-28
US5125627A (en) 1992-06-30
ATE91113T1 (de) 1993-07-15
CA2036849A1 (fr) 1991-08-22
DE59100168D1 (de) 1993-08-05
KR910021336A (ko) 1991-12-20
EP0443383B1 (fr) 1993-06-30
JPH08188391A (ja) 1996-07-23

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