EP0858967A1 - Cric de voiture de type Y - Google Patents
Cric de voiture de type YInfo
- 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
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)
Abstract
Description
- les figures 1 et 2 sont des perspectives d'un cric conforme à l'invention, respectivement en position de mise en place et en position de soulèvement maximal ;
- la figure 3 est une vue de principe des butées de l'invention, le cric étant en position de mise en place sous la feuillure ;
- la figure 4 est une vue de principe des butées, le cric étant en position de levage maximal ;
- la figure 5 est une vue de détails de l'extrémité du bras de levage qui comporte les butées, et
- les figures 6, 7, 8 montrent la pièce qui constitue la butée mobile, respectivement vue de l'arrière, vue de l'avant et encastrée dans une chape ;
Claims (9)
- Cric de voiture de type en Y constitué par une jambe (1) d'appui au sol et par un bras de levage (2) articulé à la jambe de façon à pouvoir pivoter sur la jambe sous l'action d'une vis de manoeuvre (4) qui engrène avec un écrou (5) porté par la jambe et dont l'extrémité est tenue dans le bras de levage, l'extrémité de ce bras étant munie de moyens constituant une gorge (9) tournée vers le haut pour recevoir la feuillure (F) du bas de caisse de la voiture en sorte que cette feuillure repose sur le fond de la gorge lorsque le cric est mis en place, caractérisé en ce que le bras d'appui est pourvu de butées fixes (6a, 6b, 7a, 7b) qui déterminent seulement le côté proximal de la gorge ainsi que le fond de la gorge et d'une butée déplaçable (8) qui, dans la position de mise en place du cric sous la voiture, détermine le côté distal de la gorge et qui est déplaçable pendant le levage relativement aux butées fixes.
- Cric selon la revendication 1, dans lequel ledit bras (2) comporte deux flancs parallèles (10, 11) dont les bords supérieurs sont localement conformés en équerre pour constituer lesdites butées fixes (6a, 6b ; 7a, 7b).
- Cric selon la revendication 2, dans lequel lesdits bords supérieurs sont localement rabattus vers l'extérieur pour que les équerres présentent des talons d'appui.
- Cric selon l'une des revendications 1 à 3, dans lequel la butée mobile est constituée par une pièce (12) qui peut pivoter sur le bras autour d'un axe (13).
- Cric selon la revendication 4, dans lequel ladite pièce est élastiquement rappelée vers sa position de butée.
- Cric selon la revendication 4, dans lequel ladite pièce est déplacée par l'action de la vis de manoeuvre.
- Cric selon la revendication 6, dans lequel ladite pièce (12) comporte une partie d'extrémité (8) située au dessus du bras et qui constitue ladite butée et une partie d'extrémité opposée (15) encastrée dans une chape (14), cette chape pivotant sur le bras autour du même axe que ladite pièce et étant traversée par la vis de manoeuvre.
- Cric selon la revendication 7, dans lequel la vis de manoeuvre (4) est en butée contre ladite extrémité opposée (15) de la pièce mobile.
- Cric selon l'une des revendications 1 à 8, dans lequel les butées fixes (6a, 6b ; 7a, 7b) sont conformées en sorte que le côté de la gorge (9) qui est vertical lorsque le bras de levage (2) est dans la position d'introduction du cric sous le véhicule devienne sensiblement horizontal et soutienne la feuillure lorsque le bras de levage est dans la position de levage maximal du véhicule.
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 (fr) | 1998-08-19 |
EP0858967B1 EP0858967B1 (fr) | 2003-05-07 |
Family
ID=9503848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980400350 Expired - Lifetime EP0858967B1 (fr) | 1997-02-18 | 1998-02-16 | Cric de voiture de type Y |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0858967B1 (fr) |
DE (1) | DE69814201D1 (fr) |
FR (1) | FR2759688B1 (fr) |
Citations (5)
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 (fr) * | 1990-04-10 | 1991-10-16 | Xavier Salvador Rovira | Vérin mécanique amélioré pour des véhicules automobiles |
EP0565801A1 (fr) * | 1992-04-14 | 1993-10-20 | E.P.I., EUROPEENNE DE PARTICIPATIONS INDUSTRIELLE, Société Anonyme | Cric pour véhicules |
EP0734997A1 (fr) * | 1995-03-31 | 1996-10-02 | Bowden France S.A. | Cric de véhicule |
-
1997
- 1997-02-18 FR FR9701876A patent/FR2759688B1/fr not_active Expired - Fee Related
-
1998
- 1998-02-16 EP EP19980400350 patent/EP0858967B1/fr not_active Expired - Lifetime
- 1998-02-16 DE DE69814201T patent/DE69814201D1/de not_active Expired - Lifetime
Patent Citations (5)
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 (fr) * | 1990-04-10 | 1991-10-16 | Xavier Salvador Rovira | Vérin mécanique amélioré pour des véhicules automobiles |
EP0565801A1 (fr) * | 1992-04-14 | 1993-10-20 | E.P.I., EUROPEENNE DE PARTICIPATIONS INDUSTRIELLE, Société Anonyme | Cric pour véhicules |
EP0734997A1 (fr) * | 1995-03-31 | 1996-10-02 | Bowden France S.A. | Cric de véhicule |
Also Published As
Publication number | Publication date |
---|---|
FR2759688A1 (fr) | 1998-08-21 |
FR2759688B1 (fr) | 1999-05-07 |
EP0858967B1 (fr) | 2003-05-07 |
DE69814201D1 (de) | 2003-06-12 |
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