EP0324161B1 - Cric - Google Patents

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Publication number
EP0324161B1
EP0324161B1 EP88121668A EP88121668A EP0324161B1 EP 0324161 B1 EP0324161 B1 EP 0324161B1 EP 88121668 A EP88121668 A EP 88121668A EP 88121668 A EP88121668 A EP 88121668A EP 0324161 B1 EP0324161 B1 EP 0324161B1
Authority
EP
European Patent Office
Prior art keywords
foot
support plate
projection
standing leg
vehicle 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
EP88121668A
Other languages
German (de)
English (en)
Other versions
EP0324161A1 (fr
Inventor
Peter Brosius
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 EP0324161A1 publication Critical patent/EP0324161A1/fr
Application granted granted Critical
Publication of EP0324161B1 publication Critical patent/EP0324161B1/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
    • B66F13/00—Common constructional features or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • 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

Definitions

  • the invention relates to a jack with a support leg, on which a height-adjustable body support arm is present, which can be acted upon by a threaded spindle to be operated by means of a hand crank and in the vicinity of a fixedly attached to the lower end of the support leg, in the direction of the support arm of the Stand-out protruding foot is adjustable, on the bottom of which a support plate is articulated, which rests against the foot without rattling when the jack is stowed.
  • Such a jack is known from DE-A-3608003.
  • the rattle-free contact of the support plate on the foot is achieved in that a spring is arranged on the bearing axis of the support plate, which presses the otherwise limitedly movable support plate against the foot.
  • the pressure force of the spring must be large enough to be strong on the Support plate shaking forces can not lead to their rattling, for example when the motor vehicle is driving over a bump.
  • a sufficiently strong spring is comparatively complex and a permanent effect of this spring depends on the fact that it does not tire over time.
  • the object of the invention is to achieve a sufficiently and permanently strong jamming of the support plate without the need for an additional component that generates the clamping force.
  • the support plate has a projection which is supported in the stowed position on the support arm adjacent to the foot and which presses the plate into contact with the foot.
  • the support arm or its adjustment made by adjusting the threaded spindle is advantageously used.
  • the support arm presses on the support plate so that it can no longer rattle.
  • the system can be designed to be sufficiently elastic so that, for example, a complete crank rotation can be made after the support arm has pressed the support plate over the projection against the foot.
  • an additional resilient component is unnecessary and the fixing of the support plate on the foot can be carried out more or less according to the needs and thus reliably and permanently in the desired sense, and in addition by saving a special part which serves to prevent rattling, the manufacturing costs of the jack be reduced.
  • the projection is arranged vertically on the end of the support plate facing away from the supporting leg, essentially parallel to the pillar, so that by appropriate dimensioning of the length of the projection, it is possible to adapt it to existing shapes of the support arm and the necessary pressing forces can be dimensioned accordingly.
  • the projection protrudes vertically from the support plate to the area in front of the front foot end facing away from the supporting leg, that is, it projects beyond the bottom of the foot and thus reaches the range of motion of the support arm, which has to generate the clamping forces acting on the support plate.
  • the foot attached to the end of the stem is U-shaped and has a front foot end which permits the adjustment of the support arm between the foot legs.
  • the foot is so designed that the support arm can engage between its legs.
  • the front end of the foot is designed so that the support arm can retract as deep as possible into the foot.
  • the support plate has the outside of the foot and the axle ends of a bearing shaft attached to the foot bearing plate legs, between which the projection protrudes.
  • the support plate can be produced in a simple manner from sheet metal by angling the plate leg and the projection in the desired manner after a punching process.
  • the manufacturing process of the projection is therefore extremely inexpensive because it can be produced in one operation together with the plate legs that are required anyway for mounting the axle ends.
  • the distance of the projection from the bearing axis is at most half as large as the distance of the leg end the support plate from the bearing axis.
  • the vehicle jack shown in Fig. 1 consists essentially of a leg 1 with a lower end 6, which is supported on the floor 15 via a foot 7 firmly attached.
  • a gear is mounted in a gear housing 16, with which a crank movement of the hand crank 4 is transmitted to a threaded spindle, not shown, which is located coaxially inside the hollow support leg 1 and engages there with a spindle nut which is fixed to a support arm 2 which engages in a known manner through a slot in the plane of the illustration into the interior of the hollow support leg 1.
  • a jack is generally referred to as a side jack.
  • a load-bearing part 18 which is articulated via an articulated axis 17 and which can engage with a load-bearing mandrel 19 in a correspondingly profiled grommet on the floor of a motor vehicle.
  • the foot 5 shown in FIG. 1 is arranged in the plane of the support arm 2 and has a substantially U-shaped profile, the U-legs 10 being spaced from one another such that the lower region of the support arm 2 adjusts between the U-legs 10 can be.
  • the area of the foot 7 facing away from the main leg 1 or the front end 11 of the foot is designed freely such that the support arm 2 can be adjusted up to the vicinity of the base 20 of the foot.
  • a bearing axis 12 is attached, e.g. welded.
  • the bearing axis 12 protrudes laterally over the foot 7 with its axis ends, so that these axis ends can engage in a support plate 3.
  • the support plate 3 is in any case profiled in a U-shaped manner in the region of the bearing axis 12, that is to say it has plate legs 13 which rise parallel to the U-legs 10 of the foot 7 and serve to support the axle ends of the bearing axis 12. So that the support plate 3 is limited pivotally attached to the foot 7.
  • the support plate 3 is supported on the floor 15 and is used so that the support leg 1 and the support arm 2 can make a pivoting movement when lifting the motor vehicle, which is forced by the motor vehicle if this is when lifting on a circular path around the Vehicle moving on the ground supporting wheels.
  • the jack is acted upon accordingly, which means that the supporting leg 1 performs the movement apparent from the comparison of FIGS. 1 and 2, in which the supporting leg end 6 lifts off the floor 15.
  • the foot 7 is supported via the hinge axis 12 on the support plate 3, which rests firmly on the floor 15. All the relative movements of the supporting leg 1 to the floor 15 are therefore not carried off directly on the latter, but rather by movements of the bearing axis 12 relative to the support plate 3, which rests firmly on the floor 15.
  • the support plate 3 has a projection 9 which is vertical to the support arm 2 protrudes.
  • the projection 9 projects in front of the front foot end 11 facing away from the supporting leg 1 into the movement space of the support arm 2, as well as between the plate legs 13.
  • the arrangement of the projection 9 is such that its distance v from the bearing axis 12 is significantly less than the distance of the leg-side end 14 of the support plate 3 from the bearing axis 12. This results in a corresponding rapid adjustment of the end 14 when the projection is acted upon 9 due to the support arm 2 or also a considerable elasticity in the bracing of the support plate 3.
  • the support arm 2 When the jack is stowed away, its volume is reduced as much as possible, i.e. the support arm 2 is adjusted so far down by actuating the hand crank 4 that it reaches between the legs 10 of the foot 7 and presses on the projection 9. Since the support plate 3 is free from the floor 15, it is pivoted about the bearing axis 12 by the support arm 2 until the end 14 of the support plate 3 on the support leg rests on the underside 21 of the foot 7.
  • the system consisting of hand crank 4, gear 16, threaded spindle, support arm 2 and support plate 3 or foot 7 is so elastic that the hand crank 4 can be rotated into the rest position shown in FIG. 1 despite the tensioning of the support plate 3.

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)

Claims (6)

1. Cric comportant une jambe d'appui (1), sur laquelle se trouve un bras,support (2) de la carrosserie, qui peut se déplacer en hauteur, sur lequel peut agir une tige filetée à manoeuvrer au moyen de la manivelle (4) et qui peut se déplacer pour venir au voisinage d'un pied (7) qui est rapporté, fixe, à l'extrémité inférieure (6) de la jambe d'appui (1), qui vient en saillie, depuis la jambe d'appui (1), dans la direction du bras support (2), et auquel est articulée, du côté du sol, une plaque d'appui (3) qui, en position de rangement du cric, s'appuie, sans cliquetis, contre le pied (7), cric caractérisé par le fait que la plaque d'appui (3) présente un rebord (9) qui, dans la position de rangement, s'appuie contre le bras support (2) voisin du pied (7) et pousse la plaque (3) en appui contre le pied (7).
2. Cric selon la revendication 1, caractérisé par le fait que le rebord (9) est disposé verticalement à l'extrémité (8), située du côté opposé à la jambe d'appui (1), de la plaque d'appui (3).
3. Cric selon l'une des revendications 1 ou 2, caractérisé par le fait que le rebord (9) se dresse verticalement, depuis la plaque d'appui (3), jusque dans la zone située devant l'extrémité avant (11) du pied située du côté opposé à la jambe d'appui (1).
4. Cric selon une ou plusieurs des revendications 1 à 3, caractérisé par le fait que le pied (7) fixé à l'extrémité (6) de la jambe d'appui est en forme de U et a une extrémité avant (11) qui autorise le passage du bras support (2) entre les ailes (10) du pied.
5. Cric selon l'une des revendications 1 à 4, caractérisé par le fait que la plaque d'appui (3) présente des ailes (13) qui enserrent extérieurement le pied (7), qui servent de portée aux extrémités d'un axe d'articulation (12) fixé au pied (7) et entre lesquelles pénètre le rebord (9).
6. Cric selon l'une des revendications 1 à 5, caractérisé par le fait que la distance (v) entre le rebord (9) et l'axe d'articulation (12) est au maximum la moitié de la distance (a) entre l'extrémité, située du côté de la jambe d'appui, de la plaque d'appui (3) et l'axe d'articulation (12).
EP88121668A 1988-01-12 1988-12-24 Cric Expired - Lifetime EP0324161B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8800222U DE8800222U1 (de) 1988-01-12 1988-01-12 Wagenheber
DE8800222U 1988-01-12

Publications (2)

Publication Number Publication Date
EP0324161A1 EP0324161A1 (fr) 1989-07-19
EP0324161B1 true EP0324161B1 (fr) 1991-10-16

Family

ID=6819424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121668A Expired - Lifetime EP0324161B1 (fr) 1988-01-12 1988-12-24 Cric

Country Status (3)

Country Link
EP (1) EP0324161B1 (fr)
DE (2) DE8800222U1 (fr)
ES (1) ES2027752T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011561A1 (de) * 1989-04-20 1990-10-25 Bilstein August Gmbh Co Kg Seitenwagenheber
DE4025375A1 (de) * 1990-08-10 1992-02-13 Storz E A Kg Wagenheber

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1175406B (de) * 1962-05-05 1964-08-06 E A Storz O H G Wagenheber fuer Kraftfahrzeuge
DE1162531B (de) * 1963-01-11 1964-02-06 E A Storz O H G Wagenheber
FR1543617A (fr) * 1966-11-02 1968-10-25 E A Storz Ohg Cric
DE2720043C2 (de) * 1977-05-04 1983-09-22 Bayerische Motoren Werke AG, 8000 München Wagenheber für ein Kraftfahrzeug, insbesondere für einen Personenkraftwagen
DE3608003A1 (de) * 1986-03-11 1987-09-17 Storz E A Kg Wagenheber

Also Published As

Publication number Publication date
DE8800222U1 (de) 1988-03-03
ES2027752T3 (es) 1992-06-16
EP0324161A1 (fr) 1989-07-19
DE3865660D1 (de) 1991-11-21

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