EP0858967A1 - Wagenheber vom Y-Typ - Google Patents

Wagenheber vom Y-Typ

Info

Publication number
EP0858967A1
EP0858967A1 EP98400350A EP98400350A EP0858967A1 EP 0858967 A1 EP0858967 A1 EP 0858967A1 EP 98400350 A EP98400350 A EP 98400350A EP 98400350 A EP98400350 A EP 98400350A EP 0858967 A1 EP0858967 A1 EP 0858967A1
Authority
EP
European Patent Office
Prior art keywords
jack
arm
leg
groove
fixed stops
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
EP98400350A
Other languages
English (en)
French (fr)
Other versions
EP0858967B1 (de
Inventor
Gilles Ruffie
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.)
Adwest Bowden France SA
Original Assignee
Adwest Bowden France SA
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 Adwest Bowden France SA filed Critical Adwest Bowden France SA
Publication of EP0858967A1 publication Critical patent/EP0858967A1/de
Application granted granted Critical
Publication of EP0858967B1 publication Critical patent/EP0858967B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to a car jack.
  • a Y-type jack constituted by a support leg on the ground and by a lifting arm articulated to the leg so as to be able to pivot on the leg under the action of a screw maneuver which meshes with a nut carried by the leg and of which the end is held in the lifting arm, the end of this arm being provided with means constituting an upward-facing groove for receiving the rebate of the bottom of the car body so that this rebate rests on the back of the throat when the jack is set up.
  • the groove for receiving the rebate is determined by a piece pivotally mounted on the arm mobile. This room must be properly oriented to receive the rebate and must be able to withstand significant efforts which are simply taken up by the thickness of the sheet metal of the two sides of the arm lifting. For economic reasons and on-board weight, we seek to minimize these thicknesses as much as possible, the bearing surfaces therefore tend to be reduced and the part can be damaged during the different uses, or even cut.
  • the throat is determined by a very open V-shaped plate welded to the sides of the lifting arm.
  • This V shape due to its opening can lead the user to improper positioning of the arm relative to the vehicle rebate; suddenly, the base may be incorrectly placed and the jack operated in poor conditions, especially for the user (risk of slipping, random stability, etc.) during lifting.
  • the object of the invention is to provide a jack having a groove receiving the rebate and free from risks and inconveniences cited above.
  • this is achieved by means of a jack whose arm support is provided with fixed stops which determine only the side proximal of the throat as well as the bottom of the throat and a stop movable which, in the jack installation position, is arranged so as to constitute the distal side of the throat, and which is movable during lifting relative to fixed stops.
  • Proximal and distal respectively designate the side which is closest to the manipulator, i.e. between him and the rebate, and the side which is furthest from the manipulator, i.e. which is located behind the rebate.
  • this movable stop is prompted by a spring towards the limit position where it cooperates with the fixed stops for constitute the groove for receiving the rebate, and it can be spread fixed stops against the action of the spring.
  • this movable stop is removed by the action of the operating screw during lifting.
  • the movable stop can thus remain in contact with the rebate during lifting, while allowing a change of configuration of the groove because the movable stopper can deviate from the fixed stops, whereas if the groove was determined solely by fixed stops, these stops would be subjected during the lifting to forces likely to damage them.
  • the lifting arm has two parallel sides whose upper edges are each shaped locally approximately square at the end region of the arm, these two brackets constituting the fixed stops.
  • the movable stop consists of a part engaged between the two sides of the arm and pivotally mounted on the arm.
  • the jack shown in Figures 1 and 2 is essentially consisting, in a manner known per se, of a leg (1) for supporting the ground and of a lifting arm (2) pivotally mounted on the leg about an axis (3), this pivoting effected by the action of an operating screw (4) which meshes in a nut (5) carried by the leg (1) and which acts on the arm of lifting to cause it to pivot and deploy or fold the jack.
  • the lifting arm is provided at its free end of two fixed stops (6, 7) and of a movable stop (8) which, in the jacking position under the vehicle, cooperate to constitute a vertical groove (9) capable of receiving the rebate (F) of the bottom of vehicle body.
  • the fixed stops (6, 7) are determined by a conformation local substantially at right angles to the upper edges of the opposite flanks (10, 11) which constitute the end of the lifting arm, each edge thus determining a stop 6a (7a) which constitutes the proximal side of the groove and a stop 6b (7b) which constitutes the bottom of the groove when the jack is in the insertion position under the vehicle ( Figure 1).
  • edges are folded outwards in the region of the brackets to stiffen them and increase the bearing surfaces.
  • the movable stop (8) is determined by an end part a part (12) ( Figures 6 to 8) which is hinged to the lifting arm around an axis (13).
  • this part (12) is introduced into the end of the arm between the sides (10, 11) and has a part opposite end (15) embedded in a yoke (14) provided with a drilling (16) for the passage of the operating screw.
  • the yoke is mounted on the arm to pivot around the same axis (13) as the part (12).
  • the piece (12) and the yoke could constitute a single piece, but it's easier to make them individually and assemble them on the arm.
  • the screw control abuts said opposite end portion (15) of the piece (12).
  • the invention is not limited to this exemplary embodiment.

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)
EP19980400350 1997-02-18 1998-02-16 Wagenheber vom Y-Typ Expired - Lifetime EP0858967B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9701876A FR2759688B1 (fr) 1997-02-18 1997-02-18 Cric de voiture de type y
FR9701876 1997-02-18

Publications (2)

Publication Number Publication Date
EP0858967A1 true EP0858967A1 (de) 1998-08-19
EP0858967B1 EP0858967B1 (de) 2003-05-07

Family

ID=9503848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980400350 Expired - Lifetime EP0858967B1 (de) 1997-02-18 1998-02-16 Wagenheber vom Y-Typ

Country Status (3)

Country Link
EP (1) EP0858967B1 (de)
DE (1) DE69814201D1 (de)
FR (1) FR2759688B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453260A1 (de) * 1974-11-09 1976-05-13 Teves Gmbh Alfred Nach dem kniehebelprinzip arbeitender wagenheber
DE3036584A1 (de) * 1980-09-27 1982-05-13 E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen Wagenheber
EP0451643A2 (de) * 1990-04-10 1991-10-16 Xavier Salvador Rovira Kraftfahrzeugheber
EP0565801A1 (de) * 1992-04-14 1993-10-20 E.P.I., EUROPEENNE DE PARTICIPATIONS INDUSTRIELLE, Société Anonyme Wagenheber
EP0734997A1 (de) * 1995-03-31 1996-10-02 Bowden France S.A. Wagenheber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453260A1 (de) * 1974-11-09 1976-05-13 Teves Gmbh Alfred Nach dem kniehebelprinzip arbeitender wagenheber
DE3036584A1 (de) * 1980-09-27 1982-05-13 E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen Wagenheber
EP0451643A2 (de) * 1990-04-10 1991-10-16 Xavier Salvador Rovira Kraftfahrzeugheber
EP0565801A1 (de) * 1992-04-14 1993-10-20 E.P.I., EUROPEENNE DE PARTICIPATIONS INDUSTRIELLE, Société Anonyme Wagenheber
EP0734997A1 (de) * 1995-03-31 1996-10-02 Bowden France S.A. Wagenheber

Also Published As

Publication number Publication date
FR2759688B1 (fr) 1999-05-07
EP0858967B1 (de) 2003-05-07
FR2759688A1 (fr) 1998-08-21
DE69814201D1 (de) 2003-06-12

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