EP0773184B1 - Cric comportant un montage de tourillon pour la tige de manoeuvre du cric - Google Patents
Cric comportant un montage de tourillon pour la tige de manoeuvre du cric Download PDFInfo
- Publication number
- EP0773184B1 EP0773184B1 EP19960402400 EP96402400A EP0773184B1 EP 0773184 B1 EP0773184 B1 EP 0773184B1 EP 19960402400 EP19960402400 EP 19960402400 EP 96402400 A EP96402400 A EP 96402400A EP 0773184 B1 EP0773184 B1 EP 0773184B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pin
- jack
- projection
- whose
- cradle
- 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
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 jacks comprising a rod rotary operation pivotally mounted on two opposite walls a piece of the jack (or two opposite walls belonging respectively to one and the other of two pieces of the jack) by means of a pin whose pivot axis is perpendicular to the axis of rotation of the rod, the two ends of the journal being pivotally mounted respectively in one and in the other of two opposite recesses practiced respectively in one and the other of these two walls.
- the problem is to easily set up each end of the pin in the corresponding recess and to prevent then that this end comes out of the recess.
- the present invention relates to a solution facilitating the mounting while retaining proper mounting strength.
- each recess is delimited by a side wall whose lower part is suitable for constituting a cradle for the journal and whose the upper part opens out and allows you to descend the end of the pin in its cradle, and is delimited by a face of bottom, in that the edge of the end of the journal has a projection, and in that said bottom face has local digging capable of receive said protrusion and allow it to rotate with the journal when the latter rests in said cradle, in that said bottom face has a groove which communicates said excavation with outside and which is designed so that said projection can slide in the groove until fully received in said digging during fitting the trunnion in said cradle, said projection being chosen by so that the angular position of the pin to allow the introduction of said projection in the groove is outside the range of positions that the journal can take in service.
- the pin comprises in a known manner a part central through which a threaded bore in which engages the rod 3 and two cylindrical ends.
- a projection 8 (8 ') constituted in this example by a circular sector determined by a curve which extends the surface cylindrical of the trunnion and by a cord smaller than the diameter of this cylinder.
- the facing faces (1a, 1'a) of the walls (1,1 ') have opposite U-shaped recesses (4,4 ') to receive the ends respective cylindrical (2a, 2a ') of the pin (2).
- the recess 4 of wall 1 opens laterally on a free edge (1b) of this wall and is delimited laterally by a wall (9) the lower part of which is semi-circular to hold the end of the pin and allow to turn on itself.
- the recess is delimited in the thickness of the wall by a bottom face (5) which has a first local excavation (6), capable of receiving the projection of the trunnion and allow rotation with the journal when the latter rests on the wall 9, and a second local excavation (7) constituting a groove which communicate the first digging with said free edge (1a) and in which said projection can slide until it is fully received in the first dig.
- the position of the projection (8.8 ') is chosen so that the position angular of the pin which makes it possible to introduce the projection (8) in the groove (7) is outside the range of angular positions that the pin can take up service.
- the invention is particularly applicable to jacks used for lift an automobile.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
- Pivots And Pivotal Connections (AREA)
Description
- la fig. 1 est une vue en plan de deux parois en vis-à-vis d'un cric sur lesquelles est monté le tourillon de la tige filetée de manoeuvre du cric ;
- la fig. 2 est une coupe du montage par un plan passant par l'axe de pivotement du tourillon et l'axe de rotation de la tige filetée, et
- les figs. 3A, 3B, 3C et 3D sont des vues en perspective d'étapes successives du montage d'une extrémité du tourillon dans l'évidement correspondant.
Claims (3)
- Cric comportant une tige de manoeuvre rotative (3) montée à pivotement sur deux parois en vis à vis (1b, 1c) d'une pièce du cric au moyen d'un tourillon (2) dont l'axe de pivotement est perpendiculaire à l'axe de rotation de la tige (3), les deux extrémités (2a ; 2a') du tourillon (2) étant montées à pivotement respectivement dans l'un et dans l'autre de deux évidements en vis à vis (4, 4') pratiqués respectivement dans l'une et l'autre de ces deux parois (1, 1'), caractérisé en ce que chaque évidement (4, 4') est délimité par une paroi latérale (9) dont la partie inférieure est apte à constituer un berceau pour le tourillon (2) et dont la partie supérieure permet de descendre le tourillon (2) dans son berceau et débouche à l'extérieur, et est délimité par une face de fond (5), en ce que la tranche de l'extrémité du tourillon (2) comporte une saillie (8, 8') et en ce que ladite face de fond (5) présente un creusement local (6) apte à recevoir ladite saillie (8, 8') du tourillon (2) et la maintenir tout en lui permettant de tourner avec le tourillon (2), et présente également une gorge (7) qui fait communiquer ledit creusement (6) avec l'extérieur et qui est conçue pour que ladite saillie (8, 8') puisse coulisser dans la gorge (7) jusqu'à être reçue intégralement dans ledit creusement (6) pendant l'introduction du tourillon (2) dans son berceau, ladite saillie (8, 8') étant choisie en sorte que la position angulaire du tourillon (2) pour permettre l'introduction de la saillie (8, 8') dans ladite gorge (7) soit en dehors de la plage des positions angulaires que le tourillon (2) puisse prendre en service.
- Cric selon la revendication 1, caractérisé en ce que ladite paroi latérale (9) de l'évidement est en forme de U.
- Cric selon la revendication 1 ou 2, caractérisé en ce que ladite saillie (8, 8') a la forme d'un secteur circulaire dont la courbe prolonge la surface cylindrique du tourillon (2) et dont la corde est inférieure au diamètre de ce cylindre.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9513392A FR2741059B1 (fr) | 1995-11-13 | 1995-11-13 | Cric comportant un montage de tourillon ameliore pour la tige de manoeuvre du cric |
FR9513392 | 1995-11-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0773184A1 EP0773184A1 (fr) | 1997-05-14 |
EP0773184B1 true EP0773184B1 (fr) | 2000-10-18 |
Family
ID=9484484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960402400 Expired - Lifetime EP0773184B1 (fr) | 1995-11-13 | 1996-11-12 | Cric comportant un montage de tourillon pour la tige de manoeuvre du cric |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0773184B1 (fr) |
DE (1) | DE69610683D1 (fr) |
FR (1) | FR2741059B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2330349B (en) * | 1997-10-14 | 2001-04-25 | Metallifacture Ltd | Vehicle jack |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2756108C2 (de) * | 1977-12-16 | 1984-05-30 | E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen | Wagenheber |
DE3037934A1 (de) * | 1980-10-08 | 1982-05-13 | E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen | Wagenheber |
EP0327484B1 (fr) * | 1988-01-18 | 1992-05-27 | Batz, S. Coop. Ltda. | Cric de véhicule |
DE4130108A1 (de) * | 1991-09-11 | 1993-03-18 | Storz E A Kg | Wagenheber |
-
1995
- 1995-11-13 FR FR9513392A patent/FR2741059B1/fr not_active Expired - Fee Related
-
1996
- 1996-11-12 EP EP19960402400 patent/EP0773184B1/fr not_active Expired - Lifetime
- 1996-11-12 DE DE69610683T patent/DE69610683D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2741059A1 (fr) | 1997-05-16 |
DE69610683D1 (de) | 2000-11-23 |
FR2741059B1 (fr) | 1998-01-30 |
EP0773184A1 (fr) | 1997-05-14 |
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