EP0469234A1 - Kraftfahrzeugheber - Google Patents

Kraftfahrzeugheber Download PDF

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Publication number
EP0469234A1
EP0469234A1 EP91104996A EP91104996A EP0469234A1 EP 0469234 A1 EP0469234 A1 EP 0469234A1 EP 91104996 A EP91104996 A EP 91104996A EP 91104996 A EP91104996 A EP 91104996A EP 0469234 A1 EP0469234 A1 EP 0469234A1
Authority
EP
European Patent Office
Prior art keywords
stirrup
parallelogram
extension
support
arm
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
EP91104996A
Other languages
English (en)
French (fr)
Other versions
EP0469234B1 (de
Inventor
Xavier Salvador Rovira
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.)
Tub SA
Original Assignee
Tub 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 Tub SA filed Critical Tub SA
Publication of EP0469234A1 publication Critical patent/EP0469234A1/de
Application granted granted Critical
Publication of EP0469234B1 publication Critical patent/EP0469234B1/de
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
    • 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 present Utility Model relates to an improved mechanical cylinder for motor vehicles, for raising and lowering them in order to replace the corresponding damaged wheel, normally by puncture or cutting of its tire and said cylinder provides, to the function to which it is intended, several advantages which will be noted later, apart from others inherent in its constitution.
  • a type of mechanical jack for raising automobiles is known which is protected by Utility Model N. 279019, the holder and owner of which is the own applicant for this Utility Model, which includes a mechanism based on four articulated arms between them and arranged in the form of a parallelogram, provided with a spindle located in a diagonal, being approximately horizontal in the operating position of the jack, to said spindle is connected, by its rear end, a means for being able to actuate it by pivoting - like a crank or the like - and the front end of said spindle is screwed to a hinged nut at the front apex of the parallelogram, while the opposite end of the spindle passes through a cross member, which is hinged to the opposite rear apex of said parallelogram.
  • the rear end of the spindle is terminated in a posterior expansion, bearing by pivoting on said cross member, a suitable bearing being inserted to facilitate said rotating support; although it is obvious that the relative position of said rotating support and said nut can be reversed, so that the latter is arranged articulated at the rear apex of the parallelogram, while the opposite end of the spindle is disposed at the front part of the jack and crosses said cross member, in this case articulated at the opposite front apex of said parallelogram, by arranging at the front part and which exceeds the spindle a bearing to facilitate pivoting of the spindle relative to said cross member, as well as a stop at the part internal opposite of said apex before the parallelogram, to retain said apex, and, at the same time, to limit the maximum height of the jack.
  • the four arms of the parallelogram mechanism of said mechanical jack can be formed by pairs of parallel flat bars, if necessary with their edges folded, each taking the shape of "C", said bars being separated by corresponding cores in function of hinge axes or by "U” cut profiles, connected by respective hinge axes.
  • Said mechanical jack provides, in particular, the advantages of automatic centering of the stirrup in the initial position and despite its free articulation, by ensuring the stability of the assembly formed by the vehicle and the jack both during elevation and the descent of the vehicle, only at the end of its elevation to change the corresponding wheel, thus ensuring the correct initial positioning of the caliper to obtain that it is in a suitable position at the end of its elevation, eliminating thus a possible bad positioning of the stirrup when the user locates the jack under the body of the motor vehicle, in order to raise said body.
  • the improved mechanical cylinder for motor vehicles according to this Utility Model is of the type described above and is characterized in that the stirrup has, united to the underside of its front flat part, a laminar centering device, elastic and generally of inverted "U" shape, with its base connected to the stirrup, arranged transversely to this one and defined by an elongated central and flat section, extended at each extremity according to short sections inclined in an opposite and symmetrical way downwards and outwards, each of them has, in its turn, a flat lateral extension and vertical, comprising an oblong part and with an axis perpendicular to said lower face of the stirrup, with an elongated orifice in substantial correspondence with the internal orifice of said tubular part of the stirrup, and so that the two lateral and parallel extensions of the centering device bear against the corresponding inner faces of the two parallel wings of said extension of the rear upper arm; and the spring is now, at least one spring and
  • the present improved mechanical actuator for motor vehicles provides, in particular, the advantages of mounting the centering device to the caliper of the actuator simpler and with fewer parts - only one - and less labor, with the economy which this results in its cost, the worker not having to center it during its assembly, because it remains automatically centered when it is placed, given its configuration, and all this without reducing its automatic centering function. stirrup in its initial position and despite its free articulation, without preventing it in any possible direction that the stirrup adopts around the transverse axis of the extension of the rear upper arm on which said stirrup is mounted, ensuring the correct initial positioning said stirrup according to it has been exposed previously.
  • the improved mechanical cylinder for motor vehicles object of the invention offers the advantages which have been described previously, apart from others which will be easily deduced from the example of embodiment of said cylinder, which is described in more detail below for to facilitate the understanding of the characteristics exposed previously, by making known at the same time various details and for this drawings are annexed in which, only by way of example and not limiting of the scope of the present invention, is represented a practical case of said cylinder .
  • Figure 1 shows a side view in elevation of the cylinder in its folded position and with its crank still retracted, and it should be noted that in this figure and the following the cylinder is shown in schematic form as regards the spindle (without drawing its means of screwing and support and guide); in Figure 2 there is shown said cylinder (with a part of the crank) which begins to unfold and arranged in an appropriate position below the vehicle body (of which there is shown, in dotted lines, only a lower part of that -this with its rim); Figure 3 shows said cylinder in an elevated position thereof, that is to say, in an elevated position of the vehicle to which it is applied (without drawing the crank); Figure 4 corresponds to a section through A-A of Figure 2 and shows a detail of the free joint of the stirrup, as well as the centering device; in Figures 5 and 6 is shown on a larger scale, the stirrup in side elevation and in plan, respectively; in Figure 7 is detailed section B-B of Figure 5; Figure 8 corresponds to a front elevation before the stirr
  • the improved mechanical cylinder for motor vehicles has four arms (1), (2), (3) and (4) (see in particular FIG. 3) which are articulated with one another and are arranged in a parallelogram, provided a spindle (5) - shown schematically by a geometric axis - located in a diagonal of the parallelogram, said diagonal varies angularly in position depending on it follows from the comparison between Figures 1, 2 and 3, during actuation of the jack.
  • crank (6) ( Figure 1) as a means so that its user can actuate the spindle in pivoting, to obtain its deployment or folding, that is to say, for raising or lowering the caliper of the jack and, consequently, the bodywork of the motor vehicle to which it is applied.
  • the crank (6) is inseparably articulated at the rear end of the spindle (5), stops existing to establish its operating position and having, in addition and optionally, a retaining mechanism (7) for temporarily fixing said crank in the folded position of the jack and to keep it in its place in the vehicle; if the pivoting actuation of the spindle (5) could be done by other means and even they could consist of a separable or removable union between the crank or the like and the rear end of the spindle.
  • the spindle (5) is supported by support means which may consist of a bearing or other suitable means for retaining at this front end of the spindle in position and, at the same time, facilitating its pivoting with respect to at the front vertex of the parallelogram; and said spindle is screwed to screwing means or nut allowing the spindle to move relative to the rear apex of the parallelogram of the jack according to the direction of pivoting that is given to the crank (6).
  • the situation of the bearing or the like and of the nut could be reversed, that is to say, the latter would be disposed at the front apex of the parallelogram and the bearing would be disposed at the rear apex of the latter.
  • the cylinder has, near the upper top thereof and normally in an extension of the rear upper arm (1), a stirrup (8) ( Figures 1 to 4 and in particular 5 to 10) for the support and the support of the motor vehicle to which it is applied, said stirrup being generally, such as that which is represented, articulated at the end of said extension of the arm (1) and also being conventional the stirrup in the shape of "U” or "V", determining a channel in which the lower rim (9) which the corresponding lower part of the vehicle body can have, can be freely accommodated, reinforced in this zone to resist the mechanical forces of the support of the caliper of the jack to raise said vehicle.
  • the stirrup could have another suitable constitution to adapt to said lower part of the vehicle body, having a configuration suitable for this purpose.
  • the rim (9) is used to guide the stirrup (8) and to prevent its possible untimely sliding, without said rim resting on the bottom of the stirrup channel.
  • the rear lower arm (2) which starts from the rear apex of the cylinder parallelogram, has a lower extension (2a) which forms the support leg of the cylinder proper, separating the parallelogram from the ground and is articulated to a foot (10 ) to rest on the ground or corresponding surface.
  • stop means which may consist of complementary elements or else be determined by the own configuration of the lower edge of the extension (2a), as shown in Figures 1, 2 and 3; there may be elastic means to maintain the foot in the position shown in Figure 1, when folded.
  • the upper front arm (4) may incorporate a dowel or similar elastic (not shown), arranged at the part of the front end of said arm and near the front apex of the parallelogram, in correspondence with a tubular part (11) of the stirrup ( 8), which is freely articulated with clearances in all directions around an axis (12), which is connected to the extension of the rear upper arm (1) of the parallelogram, said axis (12) being able to consist of a fixed rod - for example by riveting or welding - at the curved end of said extension of the rear upper arm (1), but in any case there must be a free articulation with a relatively large clearance between the tubular part (11) and the axis (12).
  • a dowel or similar elastic (not shown), arranged at the part of the front end of said arm and near the front apex of the parallelogram, in correspondence with a tubular part (11) of the stirrup ( 8), which is freely articulated with clearances in all directions around an axis (12), which is connected to the extension of the
  • the stirrup (8) When the cylinder is rising or, if necessary, descending, the stirrup (8) has a relatively high level of freedom, because it can move, although with relatively small but sufficient displacements, in n '' which direction, thanks to both the play between its tubular part (11) and the axis (12) disposed in the extension of the arm (1), that the two parts of the tip or wings (13) also have a transverse clearance relative to the extension of said arm (1) (see FIG. 4), because said two wings (13) are separated from each other at a distance greater than the proper width of said extension of arm (1), in a suitable measure.
  • Said constitution and arrangement of both the stirrup (8) and the extension of the arm (1) provide a free articulation to the stirrup, which can adapt, within certain limits, to possible variations in position in all directions both of the jack relative to the bodywork and of possible variations of the geometry of the latter to the support part (by alterations in its manufacture or by possible blows received by the bodywork) and again by the own ground on which the jack rests through its foot (10).
  • maximum adaptability of the jack is obtained with a relatively simple and inexpensive arrangement.
  • the stirrup (8) has a zone (14) in inclined plane back and arranged at the upper part of the posterior transverse branch of the profile which determines the channel of the stirrup, zone located near its mouth and making part of it.
  • This zone (14) determines a stop for the initial support, by the user of the actuator, against the corresponding flange (9) which presents the lower part of the bodywork of the motor vehicle, thereby facilitating the initial positioning ( placement and adjustment) of the actuator by the user.
  • the jack is shown once said initial positioning has been done, by appreciating the face to face setting and the stop produced by said zone (14) with the flange (9); and all of this so that, as the cylinder unfolds, that is to say, rises, - by actuating its crank (6) (shown in Figure 1) -, said area (14) of the stirrup (8) cooperates in guiding said stirrup along the rim (9), which is directed correctly towards the inside of the channel of the stirrup profile and is placed therein without pressing against its bottom, until the horizontal support part of the stirrup arrives to establish contact against the lower horizontal plane of this zone of the bodywork of the automobile and afterwards, continuing the elevation of the jack, the body mounted to the desired position and which normally corresponds to that shown in Figure 4.
  • the stirrup (8) could have an intermediate channel or rib (15) (FIGS. 1, 2, 3 and especially 5, 6, 7 and 9) which, at the same time as it determines a reinforcing effect on this part of the stirrup, establishes a theoretically punctual support on the axis (12), facilitating the free oscillation of the stirrup relative to the extension of the arm (1).
  • the stirrup (8) has connected to the lower face of its flat front part and by means of a stamping or stamping down (16) which after is riveted as will be explained below, a centering device (17) ( see particularly Figures 4, 11, 12 and 13).
  • the centering device (17) is laminar and elastic, having a general inverted "U" shape (in front view according to FIGS. 4 and 12), with its upper base arranged transversely to the stirrup (8) to which it is connected and which comprises a central section (18), elongated, flat and extended by each end in short sections inclined (19) and (20) opposite and symmetrically downward and outward.
  • Each of said inclined sections has, in turn and respectively, a lateral extension (21) and (22) flat and vertical, each of said lateral extensions comprising an oblong part and with an axis perpendicular to said lower face of the stirrup to which is united the centering device, with an elongated orifice such as the orifice (23) (FIG. 11), which is in substantial dimensional correspondence with the internal orifice (24) (FIG. 9) of the tubular part (11) of the stirrup (8).
  • the specific configuration of the centering device (7) gives rise to its very simple assembly, consisting of a single piece and it requires less labor for its installation, which represents a lower cost of the jack, and it should be noted that the worker only has to present and locate said centering device in the desired place for its union with the stirrup, with self-positioning of said centering device between the side walls or parallel wings of the extension of the arm (1 ) on which it is installed, at the same time eliminating possible mounting errors and making it easier, by obtaining more correct automatic centering of the caliper and an optimal balance of the jack, ensuring the stability of the 'assembly formed by the cylinder and the vehicle to which it is applied.
  • the stirrup (8) is elastically connected by at least one spring (26) to the arm (1), for this purpose said spring is fixed by one end to the orifice (27) - by means, for example, of a extreme hook of the spring - and by its other end to an orifice (28) (see FIGS. 1, 2, 3, 5 and 6) of the stirrup (8), so that said spring holds the stirrup, when this- ci does not have the body of a vehicle applied, in an intermediate position with respect to those determined by the two extreme stops of the extension of the arm (1) as regards its relative pivoting, that is to say that said spring maintains the stirrup in the position shown in FIG.

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  • 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)
EP19910104996 1990-07-30 1991-03-28 Kraftfahrzeugheber Expired - Lifetime EP0469234B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9002389U 1990-07-30
ES9002389U ES1014898Y (es) 1990-07-30 1990-07-30 Gato mecanico perfeccionado para vehiculos automoviles.

Publications (2)

Publication Number Publication Date
EP0469234A1 true EP0469234A1 (de) 1992-02-05
EP0469234B1 EP0469234B1 (de) 1995-03-01

Family

ID=8268864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910104996 Expired - Lifetime EP0469234B1 (de) 1990-07-30 1991-03-28 Kraftfahrzeugheber

Country Status (4)

Country Link
EP (1) EP0469234B1 (de)
DE (1) DE69107721T2 (de)
ES (1) ES1014898Y (de)
PT (1) PT8277U (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516314A2 (de) * 1991-05-29 1992-12-02 Metallifacture Limited Wagenheber
EP0529355A1 (de) * 1991-08-22 1993-03-03 AUGUST BILSTEIN GMBH & CO. KG Wagenheber
FR2692240A1 (fr) * 1992-06-12 1993-12-17 Fabrication Accessoires Automo Cric à vis, du type à bras articulés, pour véhicule automobile.
FR2692241A1 (fr) * 1992-06-12 1993-12-17 Fabrication Accessoires Automo Cric à vis du type à quadrilatère déformable, pour véhicule automobile.
EP0611241A1 (de) * 1993-02-08 1994-08-17 Tub S.A. Stabilisierungs- und Verstärkungsvorrichtung für Wagenheber
EP0622329A1 (de) * 1993-03-30 1994-11-02 Tub S.A. Automatische Stabilisierungs- und Verstärkungsvorrichtung für Wagenheber
EP0744375A1 (de) * 1995-05-26 1996-11-27 FIAT AUTO S.p.A. Wagenheber
EP0936176A1 (de) * 1998-02-05 1999-08-18 Krupp Bilstein GmbH Wagenheber
WO2003084857A1 (de) * 2002-04-09 2003-10-16 Thyssenkrupp Bilstein Gmbh Anbindung einer schwenkbaren tragplatte

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521994A1 (de) * 1995-06-20 1997-01-02 Bilstein August Gmbh Co Kg Wagenheber

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388004A (en) * 1944-05-17 1945-10-30 John C Mclaughlin Lifting jack
FR1075818A (fr) * 1953-04-13 1954-10-20 Manuf D Outil Pour Garages Wil Dispositif-support permettant l'orientation à poste fixe d'une roue orientable de véhicule
DE7414229U (de) * 1974-07-25 Allendorfer Fabrik Fuer Stahlverarbeitung Panne H Kg Wagenheber
DE3036584A1 (de) * 1980-09-27 1982-05-13 E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen Wagenheber
DE8702290U1 (de) * 1987-02-14 1987-07-16 August Bilstein Gmbh & Co Kg, 58256 Ennepetal Wagenheber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7414229U (de) * 1974-07-25 Allendorfer Fabrik Fuer Stahlverarbeitung Panne H Kg Wagenheber
US2388004A (en) * 1944-05-17 1945-10-30 John C Mclaughlin Lifting jack
FR1075818A (fr) * 1953-04-13 1954-10-20 Manuf D Outil Pour Garages Wil Dispositif-support permettant l'orientation à poste fixe d'une roue orientable de véhicule
DE3036584A1 (de) * 1980-09-27 1982-05-13 E.A. Storz Gmbh & Co Kg, 7200 Tuttlingen Wagenheber
DE8702290U1 (de) * 1987-02-14 1987-07-16 August Bilstein Gmbh & Co Kg, 58256 Ennepetal Wagenheber

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1, no. 60 10 Juin 1977 & JP-A-52 009 260 ( NOBUYUKI KAMAGA ) 24 Janvier 1977 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516314A2 (de) * 1991-05-29 1992-12-02 Metallifacture Limited Wagenheber
EP0516314A3 (de) * 1991-05-29 1994-02-23 Metallifacture Ltd
EP0529355A1 (de) * 1991-08-22 1993-03-03 AUGUST BILSTEIN GMBH & CO. KG Wagenheber
FR2692240A1 (fr) * 1992-06-12 1993-12-17 Fabrication Accessoires Automo Cric à vis, du type à bras articulés, pour véhicule automobile.
FR2692241A1 (fr) * 1992-06-12 1993-12-17 Fabrication Accessoires Automo Cric à vis du type à quadrilatère déformable, pour véhicule automobile.
EP0611241A1 (de) * 1993-02-08 1994-08-17 Tub S.A. Stabilisierungs- und Verstärkungsvorrichtung für Wagenheber
EP0622329A1 (de) * 1993-03-30 1994-11-02 Tub S.A. Automatische Stabilisierungs- und Verstärkungsvorrichtung für Wagenheber
EP0744375A1 (de) * 1995-05-26 1996-11-27 FIAT AUTO S.p.A. Wagenheber
EP0936176A1 (de) * 1998-02-05 1999-08-18 Krupp Bilstein GmbH Wagenheber
WO2003084857A1 (de) * 2002-04-09 2003-10-16 Thyssenkrupp Bilstein Gmbh Anbindung einer schwenkbaren tragplatte

Also Published As

Publication number Publication date
EP0469234B1 (de) 1995-03-01
ES1014898Y (es) 1991-11-16
PT8277T (pt) 1992-01-31
PT8277U (pt) 1994-06-30
DE69107721D1 (de) 1995-04-06
ES1014898U (es) 1991-05-01
DE69107721T2 (de) 1995-07-06

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