FR2558817A1 - Improvements to systems for driving the screws of scissor jacks. - Google Patents

Improvements to systems for driving the screws of scissor jacks. Download PDF

Info

Publication number
FR2558817A1
FR2558817A1 FR8401206A FR8401206A FR2558817A1 FR 2558817 A1 FR2558817 A1 FR 2558817A1 FR 8401206 A FR8401206 A FR 8401206A FR 8401206 A FR8401206 A FR 8401206A FR 2558817 A1 FR2558817 A1 FR 2558817A1
Authority
FR
France
Prior art keywords
crank
axis
screw
driver
screws
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
FR8401206A
Other languages
French (fr)
Other versions
FR2558817B1 (en
Inventor
Jean-Baptiste Rousselle
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.)
ASTRA ETS FLORIMOND CHABARDES
Original Assignee
ASTRA ETS FLORIMOND CHABARDES
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 ASTRA ETS FLORIMOND CHABARDES filed Critical ASTRA ETS FLORIMOND CHABARDES
Priority to FR8401206A priority Critical patent/FR2558817B1/en
Publication of FR2558817A1 publication Critical patent/FR2558817A1/en
Application granted granted Critical
Publication of FR2558817B1 publication Critical patent/FR2558817B1/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F3/00Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/12Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

Device for driving the screws of scissor jacks by means of a driver 5-crank 4 assembly which is inexpensive to manufacture, in which the axis of rotation of the crank 4 can adopt a variable inclination according to the needs, and characterised in that the screw 3 for manoeuvring the jack 1 is welded at 6 to the driver 5; the latter has two openings 5a through which the crank 4 can be introduced and moved angularly with respect to the manoeuvring screw 3 depending on the need, whilst avoiding accidental separation, and the axis of the crank may make an angle with respect to the axis of the manoeuvring screw 3 which can vary from from 0 to 35 DEG .

Description

La présente invention a pour but l'amélioration du mouvement d'entraînement en rotation de la vis d'un cric losange. The present invention aims to improve the rotational driving movement of the screw of a diamond jack.

La manoeuvre d'un cric losange destiné à soulever un véhicule par un côté nécessite une manivelle dont l'axe de rotation doit pouvoir orendre une certaine inclinaison par rapport à l'axe de la vis du cric qui est située généralement assez près du sol. The operation of a diamond jack intended to lift a vehicle from one side requires a crank, the axis of rotation of which must be able to cause a certain inclination relative to the axis of the jack screw which is generally located fairly close to the ground.

Pour cette dernière raison, et afin d'améliorer la position de l'opérateur pendant la manoeuvre, il est souhaitable que l'axe de la manivelle puisse faire le plus grand angle possible avec l'axe de la vis sans gêner la régularité du mouvement de rotation. For the latter reason, and in order to improve the position of the operator during the maneuver, it is desirable that the axis of the crank can make the greatest possible angle with the axis of the screw without interfering with the regularity of the movement. of rotation.

Les dispositifs d'entraînement connus, tels que des entraîneurs en forme de chape ou en forme d'oeil avec manivelle en crochet, ne peuvent fonctionner correctement que sous des angles relativement faibles, inférieurs à 17 environ, au-delà desquels il se produit des saccades, voire même un blocage du mouvement. Known drive devices, such as yoke or eye-shaped trainers with hooked crank, can only work properly at relatively small angles, less than about 17, beyond which jerks, or even a blockage of movement.

En conséquence, l'invention a pour objet de realiser un ensemble entraîneur - manivelle de fabrication économique, l'axe de la manivelle pouvant avoir un angle variable de 0 à 350 par rapport à l'axe de la vis et étant soumis à la régularité du mouvement de rotation. Consequently, the object of the invention is to produce a coach-crank assembly of economical manufacture, the axis of the crank being able to have a variable angle from 0 to 350 relative to the axis of the screw and being subject to regularity. of the rotational movement.

Sur les dessins annexés:
La figure 1 est une vue d'ensemble représentant un cric losange posé sur le sol ZZ' avec la manivelle engagée dans l'entraîneur et dont l'axe de rotation XX' fait avec l'axe de la vis
YY' un angle de 350.
In the accompanying drawings:
Figure 1 is an overview showing a diamond jack placed on the ground ZZ 'with the crank engaged in the driver and whose axis of rotation XX' made with the axis of the screw
YY 'an angle of 350.

La figure 2 est une vue du dessus de la figure 1. Figure 2 is a top view of Figure 1.

La figure 3 est une vue analogue à la figure 2 mais montrant la mise en place de la manivelle. Figure 3 is a view similar to Figure 2 but showing the establishment of the crank.

La figure 4 est une vue partielle montrant l'entraineur dans lequel est engagée l'extrémité de la manivelle. Figure 4 is a partial view showing the coach in which is engaged the end of the crank.

La figure 5 est une coupe par l'axe V - V de la figure 4. FIG. 5 is a section through the axis V - V of FIG. 4.

La figure 6 est une vue de dessus de l'entraîneur seul, la manivelle n'étant par représentée. Figure 6 is a top view of the coach alone, the crank is not shown.

La figure 7 est une vue en coupe analogue à la figure 5 mais avec la manivelle représentée en position d'introduction. Figure 7 is a sectional view similar to Figure 5 but with the crank shown in the insertion position.

Sur les figures 1 à 4, on voit un cric classique 1 qui repose en 2 sur un plan horizontal ZZ', sa vis de manoeuvre 3 dont l'axe YY' est sensiblement parallèle au plan ZZ', sa mani velle 4 dont l'axe de rotation XX' fait un angle variable suivant les besoins, de 0 à 350, par rapport à l'axe de la vis de manoeuvre 3, et un- entraîneur 5 comprenant deux lumières 5a opposées et deux parties pleines 5b opposées dont l'une est soudée en 6 à la vis de manoeuvre 3. In Figures 1 to 4, we see a conventional jack 1 which rests in 2 on a horizontal plane ZZ ', its operating screw 3 whose axis YY' is substantially parallel to the plane ZZ ', its crank 4 whose axis of rotation XX 'makes a variable angle as required, from 0 to 350, with respect to the axis of the operating screw 3, and a- driver 5 comprising two opposite slots 5a and two opposite solid parts 5b, the one is welded in 6 to the operating screw 3.

Sur la figure 5, on voit l'extrémité de la manivelle 4 verrouillée à l'intérieur de l'entraîneur 5 par une partie renflée 4a retenue par les bords des ouvertures 5a de l'entraîneur situés dans le sens le plus étroit. In Figure 5, we see the end of the crank 4 locked inside the driver 5 by a bulged portion 4a retained by the edges of the openings 5a of the coach located in the narrowest direction.

Sur la figure 6, on voit l'entraîneur 5 et la forme oblogue des ouvertures 5a, dont la largeur dans le-sens transversal ne permet que le passage de la tige de la manivelle 4 (non représentée) et dont la longueur dans le sens longitudinal autorise le mouvement oscillant alternatif de la manivelle, qui résulte de sa rotation autour de l'-axe XX', sous des angles quelconques compris entre O et 350
Sur la figure 7, on voit la manivelle 4 tournée de 900 par rapport à la figure 5, en position d'introduction, la partie renflée 4a se présentant dans le sens le plus large des ouvertures 5a de l'entraîneur 5 et pouvant ainsi passer librement.
In Figure 6, we see the driver 5 and the oblog shape of the openings 5a, whose width in the transverse direction only allows the passage of the rod of the crank 4 (not shown) and whose length in the direction longitudinal allows the reciprocating oscillating movement of the crank, which results from its rotation around the axis XX ', at any angles between 0 and 350
In FIG. 7, we see the crank 4 turned by 900 with respect to FIG. 5, in the insertion position, the bulged part 4a being in the widest direction of the openings 5a of the driver 5 and thus able to pass freely.

Le fonctionnement de l'appareil est le suivant
Lorsque le cric 1 est positionné dans son ancrage sur le véhicule, il suffit de pré-orienter l'entraîneur 5 de manière que les lumières 5a se trouvent dans une position favorable à l'insertion de la manivelle 4 (voir figure 3). On place ensuite la manivelle comme le montre la figure 2.
The operation of the device is as follows
When the jack 1 is positioned in its anchorage on the vehicle, it suffices to pre-orient the trainer 5 so that the lights 5a are in a position favorable to the insertion of the crank 4 (see FIG. 3). Then place the crank as shown in Figure 2.

I1 est alors possible de manoeuvrer les pièces 1 à 3 du cric par l'intermédiaire de la manivelle 4, qui est actionnee en rotation sous n'importe quel angle entre l'axe XX' et l'axe
YY'. Cette manoeuvre ne peut être entravée par un désaccouplement intempestif, car la partie renflée 4a de la manivelle 4 offre une sécurité qui provient du verrouillage de la manivelle sur l'entraîneur 5. La liaison entre la vis 3 et l'entraîneur 5 est réalisée par un moyen quelconque connu, par exemple par soudure, par vissage ou par brasage.
I1 is then possible to operate the parts 1 to 3 of the jack via the crank 4, which is rotated at any angle between the axis XX 'and the axis
YY '. This maneuver cannot be hindered by an inadvertent uncoupling, because the bulged part 4a of the crank 4 offers security which comes from the locking of the crank on the driver 5. The connection between the screw 3 and the coach 5 is carried out by any known means, for example by welding, by screwing or by brazing.

Claims (1)

REVENDICATION CLAIM Dispositif d'entraînement des vis de crics losanges à l'aide d'un ensemble entraîneur (5) - manivelle (4) de fabrication économique dans lequel l'axe de rotation de la manivelle (4) peut prendre une inclinaison variable suivant les besoins, et caractérisé en ce que la vis de manoeuvre (3) du cric (1) est soudée (en 6) à l'entraîneur (5), celui-ci possède deux ouvertures (5a) à travers lesquelles on peut introduire la manivelle (4) et permettre son déplacement angulaire en fonction des besoins par rapport à la vis de manoeuvre (3) tout en évitant une sépara- tion accidentelle, et l'axe de la manivelle peut avoir un angle variable de O à 350 par rapport à l'axe de la vis de manoeuvre (3)  Device for driving diamond-shaped jack screws using a drive assembly (5) - crank (4) of economical manufacture in which the axis of rotation of the crank (4) can take a variable inclination as required , and characterized in that the operating screw (3) of the jack (1) is welded (at 6) to the driver (5), the latter has two openings (5a) through which the crank can be introduced ( 4) and allow its angular displacement as required with respect to the maneuvering screw (3) while avoiding accidental separation, and the axis of the crank may have a variable angle from 0 to 350 relative to l axis of the operating screw (3)
FR8401206A 1984-01-26 1984-01-26 IMPROVEMENT IN LOSANGES JACK SCREW DRIVE SYSTEMS Expired FR2558817B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8401206A FR2558817B1 (en) 1984-01-26 1984-01-26 IMPROVEMENT IN LOSANGES JACK SCREW DRIVE SYSTEMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8401206A FR2558817B1 (en) 1984-01-26 1984-01-26 IMPROVEMENT IN LOSANGES JACK SCREW DRIVE SYSTEMS

Publications (2)

Publication Number Publication Date
FR2558817A1 true FR2558817A1 (en) 1985-08-02
FR2558817B1 FR2558817B1 (en) 1987-04-24

Family

ID=9300504

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8401206A Expired FR2558817B1 (en) 1984-01-26 1984-01-26 IMPROVEMENT IN LOSANGES JACK SCREW DRIVE SYSTEMS

Country Status (1)

Country Link
FR (1) FR2558817B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321164A1 (en) * 1987-12-17 1989-06-21 Metallifacture Limited Vehicle jack
FR2635097A1 (en) * 1988-08-02 1990-02-09 Takraf Schwermasch Crank for jack, particularly for jack with crossed levers.
FR2686870A1 (en) * 1992-02-05 1993-08-06 Landion Marc Jack for motor vehicle
EP0623548A1 (en) * 1993-05-03 1994-11-09 Batz, S. Coop. Ltda. Winding Handle for car Jack
CN103979451A (en) * 2014-05-23 2014-08-13 宁波天益齿轴齿轮有限公司 Coiling type lifting jack

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR605511A (en) * 1925-09-25 1926-05-28 Lifting device for motor vehicles or other applications
FR622607A (en) * 1927-06-02
US2479362A (en) * 1945-12-22 1949-08-16 Jackson Wilbur Jack
US2508934A (en) * 1946-03-14 1950-05-23 Arthur A Berg Lifting jack
US2557465A (en) * 1945-08-31 1951-06-19 Sr Joseph C Rauscher Portable lifting jack
FR997547A (en) * 1949-09-21 1952-01-07 Consortium D Inv S Nouvelles R Jacks development
FR2273752A1 (en) * 1974-06-07 1976-01-02 Bilstein August JACK FOR MOTOR VEHICLES
DE2453260A1 (en) * 1974-11-09 1976-05-13 Teves Gmbh Alfred Lever-type jack used on vehicles - has a pivoting lifting arm raised by a screwed spindle working in a tilting component
GB2030107A (en) * 1978-09-27 1980-04-02 Takraf Schwermasch Coupling between a mechanical lifting jack and operating handle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR622607A (en) * 1927-06-02
FR605511A (en) * 1925-09-25 1926-05-28 Lifting device for motor vehicles or other applications
US2557465A (en) * 1945-08-31 1951-06-19 Sr Joseph C Rauscher Portable lifting jack
US2479362A (en) * 1945-12-22 1949-08-16 Jackson Wilbur Jack
US2508934A (en) * 1946-03-14 1950-05-23 Arthur A Berg Lifting jack
FR997547A (en) * 1949-09-21 1952-01-07 Consortium D Inv S Nouvelles R Jacks development
FR2273752A1 (en) * 1974-06-07 1976-01-02 Bilstein August JACK FOR MOTOR VEHICLES
DE2453260A1 (en) * 1974-11-09 1976-05-13 Teves Gmbh Alfred Lever-type jack used on vehicles - has a pivoting lifting arm raised by a screwed spindle working in a tilting component
GB2030107A (en) * 1978-09-27 1980-04-02 Takraf Schwermasch Coupling between a mechanical lifting jack and operating handle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0321164A1 (en) * 1987-12-17 1989-06-21 Metallifacture Limited Vehicle jack
FR2635097A1 (en) * 1988-08-02 1990-02-09 Takraf Schwermasch Crank for jack, particularly for jack with crossed levers.
FR2686870A1 (en) * 1992-02-05 1993-08-06 Landion Marc Jack for motor vehicle
EP0623548A1 (en) * 1993-05-03 1994-11-09 Batz, S. Coop. Ltda. Winding Handle for car Jack
CN103979451A (en) * 2014-05-23 2014-08-13 宁波天益齿轴齿轮有限公司 Coiling type lifting jack

Also Published As

Publication number Publication date
FR2558817B1 (en) 1987-04-24

Similar Documents

Publication Publication Date Title
US6425465B1 (en) Locking wheel chock apparatus for single tire
EP1069067B1 (en) Swivel ring for lifting loads
WO1985000546A1 (en) Claw extractor
WO2007113405A1 (en) Nut for securing an aircraft windscreen and device for securing an aircraft windscreen incorporating the said nut
FR2470237A1 (en) STABILIZER FOR DETACHABLE ROD TRAIN
FR2558817A1 (en) Improvements to systems for driving the screws of scissor jacks.
FR2710587A1 (en) Water radiator fitted with a charge air cooler.
EP0379484A1 (en) A tyre bead breaker.
FR2577295A1 (en) BUTTERFLY VALVE, IN PARTICULAR FOR CONTAINERS WITH TANKS
FR2886216A1 (en) DEVICE FOR CONVEYING AN ERGONOMIC COUPLING MECHANISM
FR2670447A1 (en) DEVICE FOR CONNECTING A DRIVE SHAFT AND A WIPER ARM, ESPECIALLY FOR A MOTOR VEHICLE.
EP0178998B1 (en) Jack-type lifting device for a vehicle
FR2606303A1 (en) SECTOR WITH SECTOR FOR REPRESSING AUTOMOTIVE BODIES ON MARBLE
EP0112779B1 (en) Hitch bar for towing vehicles
FR2502664A1 (en) DART DEVICE FOR DRAGUE
EP0552154A1 (en) Apparatus for moving barrels
EP0542601B1 (en) Hooking system for handling-device for trapezoidal containers
FR2630974A1 (en) DEVICE FOR STABILIZING A TRAILER
FR2610030A1 (en) Garage having a telescopically retractable structure particularly for a motor vehicle
FR2607605A1 (en) Device for gripping a gear lever
EP0841214B1 (en) Position adjusting screw mechanism without play for lighting or warning devices on a vehicle
FR2704822A1 (en) Free knob for turning a steering wheel
FR2887308A1 (en) Panel assembling system, has rod with ball-shaped end engaged in recess of connecting part`s head, and pin/clamp locking rod in housing arranged in one of set of panels, where panels are maintained in position by connecting points
FR2654299A1 (en) Device for filling a liquid fertilizer barrel
WO2023067255A1 (en) Device for removing a gear knob and method using such a device

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse