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Dokumentenidentifikation EP0424382 18.11.1993
EP-Veröffentlichungsnummer 0424382
Titel ANTIRUTSCHANORDNUNG.
Anmelder Törnebäck, Göran, Linköping, SE
Erfinder Törnebäck, Göran, Linköping, SE
Vertreter Splanemann, R., Dipl.-Ing.; Reitzner, B., Dipl.-Chem. Dr.rer.nat.; Baronetzky, K., Dipl.-Ing.(Univ.), Pat.-Anwälte, 80331 München
DE-Aktenzeichen 68909944
Vertragsstaaten AT, CH, DE, FR, GB, IT, LI, SE
Sprache des Dokument En
EP-Anmeldetag 08.02.1989
EP-Aktenzeichen 899021828
WO-Anmeldetag 08.02.1989
PCT-Aktenzeichen SE8900050
WO-Veröffentlichungsnummer 8907533
WO-Veröffentlichungsdatum 24.08.1989
EP-Offenlegungsdatum 02.05.1991
EP date of grant 13.10.1993
Veröffentlichungstag im Patentblatt 18.11.1993
IPC-Hauptklasse B60B 39/00

Beschreibung[en]

The present invention relates to an anti-skid device, preferably an anti-skid device of a kind comprising a pulley provided with chain pieces which is brought to rotate when bearing on the side of a vehicle wheel, whereby the chain pieces, due to rotating of the pulley, are successively thrown between the wheel and the ground.

Anti-skid devices of the above-mentioned kind are known, particularly for heavy trucks and for trucks of ordinary size. To achieve a proper function of the anti-skid device, it is necessary that the point where the pulley is in contact with the vehicle wheel be capable of being adjusted vertically and horizontally and that the proper pressure between the pulley and the wheel be achieved.

In SE-A-8501021-3 an anti-skid device for smaller trucks is disclosed, which device has a certain adjustability but comprises many parts. In addition, for moving the pulley from a resting position to a working position, a relatively large space is required, because the pulley must be moved to a resting position where the chains are well above the ground.

European Patent Publication No. 162823 describes a special shelf provided for buses and similar vehicles having limited space. The shelf collects the chains and keeps them free of the ground. The construction comprises additional parts to be located and adjusted into the system in order to obtain the desired function. The shelf is prone also to collect dirt.

Characteristic of the mentioned devices is that their design is relatively complicated; they are expensive to make; and their use can be adapted only to larger vehicles. In EP-A-0 252 050 a pressurized bellow between two U-shaped arms is used to bring the pulley into the operating position.

The object of the present invention is to provide an anti-skid device of the above-mentioned kind which can be easily adapted for mounting and use on heavier trucks, as well as on smaller vans and cars, and which device, without need for large space, permits moving the pulley to a resting position where the chains are captured and kept well above the ground.

Another object of the invention is to achieve a construction that is resistant to moisture and dirt.

A further object of the invention is to achieve a device of the describe kind having a simple construction.

These objects are achieved in a preferred embodiment of the present invention in which a fixing device, attached to the vehicle, carries an arm, flexible essentially in one plane, to the end of which a pulley carrying chains is rotatably attached, the arm comprising a number of positioning elements each consisting of a body of a hard material with at least a first and a second contact surface arranged to diverge at their front end from each other, permitting the first contact surface of a positioning element to be brought into contact in a fixed position with the second contact surface of an adjacent element, said positioning elements being held together at their back ends by a contracting means and enclosing at least one resilient means which, in a first position, when the contracting means is in a curved resting position, causes the elements to diverge from each other and in a second position, when a first pulling means acts against the force of the resilient means and the contracting means, the contact surfaces of the elements interact and form a rigid stack.

In another embodiment of the invention there is a second pulling means extending through the wedge-shaped part of the positioning elements, which pulling means, when activated, keeps the wedge-shaped parts of the positioning elements together so that a curved stack is obtained.

The mentioned embodiments have the positioning elements, the contracting means and the resilient means encapsulated in a tight elastic cover. Furthermore, there are means that capture and fix the chains in the resting position of the device. Common to all of the embodiments is the fact that the fixing device, which fixes the arm to the vehicle, is adjustable so that a proper contact point between the pulley and the wheel can easily be obtained.

The invention will now be described with reference to the accompanying drawings.

  • Figure 1 shows the device in a resting position;
  • Figure 2 shows an enlarged partial section of the device shown in Figure 1;
  • Figure 3 shows the device in a working position;
  • Figure 4 shows, in a working position, a device with two pulling apparatus; and
  • Figure 5 shows the device of Figure 4 in its resting position.

Figures 1 and 2 show the device 1 mounted on a vehicle shaft with the fixing device 2 attached to the axle tube 3 interiorly of the wheel 9. It is also possible to mount a fixing device, of another kind (not shown) to the points of fixation of the springs and the shock absorbers.

The fixing device has an elongated body 4 comprising a tube or a bar. The body 4 is fixed to the axle tube 3 of the vehicle by means of two clamps 5 and 6, which fasten the body 4 and press the lower parts, 7 and 8, of the clamps against the shaft tube of the vehicle. Thus, when the clamps 5 and 6 are loose, the body 4 is adjustable horizontally, as well as vertically, and can also be turned. When the clamps are tightly fixed, on the other hand, the body 4 is fastened to the axle tube of the vehicle. Thus, the contact point between the pulley 16 and the vehicle wheel 9 can easily be adjusted.

At the end of the elongated body 4, which is directed toward the wheel 9, a plate 13 is attached. In this plate 13 the arm 10 is rotatably mounted. The plate 13 also attaches a bowden cable 14 through which a pulling line 15 extends. The pulling line 15 is connected for operation to a power generating device mounted on the vehicle (not shown). Around the arm 10 a preferably U-shaped magnetic body 18 is provided by which the chains are captured when the device is in its resting position. The magnetic device 18 is provided with a clamp 19 positioned between the pulley 16 and the outermost positioning element 20.

The arm 10 comprises a plurality of positioning elements 20, made of a hard material. The positioning elements 20 are, at their one end, held together by a contracting means 21. At least one resilient means, such as the elongated coil spring 22, extends through all of the positioning elements 21. When the arm 10 rests against the plate 13 and the attachment of the pulley 16 is in the neutral position, the arm becomes curved, in that the positioning elements 20, as viewed from the contracting means 21, are caused to diverge from each other. The positioning elements 20 each have a projecting part 24 and a cavity 25 in their respective oppositely facing surfaces. From the power generating device mentioned above, at least one pulling line 15 extends through holes in the positioning elements 20 where the ends of each of the pulling lines 15 is fixed in the outermost positioning element.

In another preferred embodiment (not shown) the first pulling line is a strong ribbon, for instance a textile ribbon, which is attached to the outermost positioning element and which ribbon extends along and outside the ends of the positioning elements that are directed from the contracting means 21, to the earlier mentioned power generating device in the vehicle. The arm 10, comprising the positioning elements 20, the contracting means 21, the first pulling line 15 and the resilient means 22, is encapsulated in an elastic cover 26, preventing dampness and dirt to come through and jeopardize the function of the device. The pulley 16 with its chain pieces 17 is rotatably mounted on the outermost positioning element of the arm 10. In this element the clamp 19 is also mounted.

In Figures 1 and 2 the device is shown in its resting position when the resilient means 22 is in its neutral position. In this position the arm 10 becomes curved so that the pulley 16 is turned and lifted upwardly to an elevated position such that the ends of the chains 17 will be an adequate distance from the ground. In this position also, the pulling line 15 is released allowing the arm 10 to assume this shape. The magnetic means 18, which is provided in the outermost positioning element 20 and partially embraces the arm 10, will catch the swinging chains when the vehicle moves and prevent them from producing undue sound.

In Figure 3 the device is shown in its working position. When the pulling line 15 is activated by the power generating device in the vehicle, the spring 22 is contracted so that the surfaces of the positioning elements will be caused to press against each other. The projecting parts 24 on each positioning element 20 are caused to mate with the cavity 25 on the adjacent element so that a twist-and bend-resistant rigid stack is obtained. The pulley 16 is thus pressed against the side of the vehicle wheel at a point 27 located on a line between the axis of the shaft and the contact point between the wheel and the ground closely or behind such line. The pulley 16 will then be caused to rotate by the vehicle wheel 9 and the chains are thrown by centrifugal action between the wheel and the ground whereby skidding is hindered.

It is important that the contact point between the pulley 16 and the vehicle wheel be so located that no undesirable forces are imposed on the device, such as, for example, pulling forces in the chains. Determining the accurate contact point, as already mentioned, can be performed by adjusting the fixing device 2.

Figures 4 and 5 show the principles of another embodiment of the arm in which the positioning elements 40 have an alternative shape in that one part 41 has essentially plane parallel surfaces which, when pressed together by a first pulling device 44, form an essentially straight stack as shown in Figure 4. The other part 43 of the positioning elements 40 has surfaces converging toward the end of the elements, which elements, when the surfaces or pressed together by a second pulling means 42, form an arched as is evident from Figure 5.

The described invention is adapted to act as an apparatus for moving an anti-kid device for a vehicle between a resting position and a working position but can, of course, be adapted to act in other tasks, e.g., moving a tool or the like into different positions relative to a fixed point.


Anspruch[de]
  1. Befestigungsvorrichtung für ein eine Scheibe (16) aufweisendes Gleitschutzgerät, das an einem Fahrzeug durch eine Befestigungsvorrichtung (2) befestigt ist, welche Scheibe mit Kettenstücken (17) versehen ist, wobei die Scheibe durch Anlage an einer Seite eines Fahrzeugrads (9) drehen gelassen wird, wodurch die Kettenstücke, wenn sich das Rad und dadurch die Scheibe dreht, nacheinander zwischen das Rad und den Boden geschleudert werden, dadurch gekennzeichnet, daß die Befestigungsvorrichtung einen Arm (10) trägt, der im wesentlichen in einer Ebene biegsam ist, an dessen freiem Ende die Scheibe (16) drehbeweglich befestigt ist, daß der Arm eine Mehrzahl von Positionierelementen (20) aufweist, die je ein hartes Material mit mindestens einer ersten und einer zweiten Anlageoberfläche aufweisen, die so angeordnet sind, daß sie an ihrem vorderen Ende voneinander divergieren, um zu ermöglichen, daß die erste Anlageoberfläche eines Positionierelements (20) in einer festen Position in Anlage mit der zweiten Anlageoberfläche auf einem benachbarten Element gebracht wird, daß die Positionierungselemente an ihrem rückwärtigen Ende durch eine Zugvorrichtung (21) zusammengehalten werden und mindestens ein Federelement (22) aufweisen bzw. umgeben, das in einer ersten Stellung, wenn die Zugvorrichtung sich in einer gekrümmten Ruheposition befindet, die Elemente dazu zwingt, voneinander zu divergieren und in einer zweiten Position, wenn eine erste Zugvorrichtung (15) gegen die Kraft der Federvorrichtung und der Kontrahiervorrichtung wirkt, die Anlageoberflächen der Elemente dazu zwingt, miteinander zusammenzuwirken und einen festen Stapel zu bilden.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Positionierungselemente (40) je eine dritte und eine vierte Anlageoberfläche aufweisen, die einen keilförmigen Teil (43) bilden und von dem Elemententeil (41) ausgehen, der die ersten und die zweiten Anlageoberflächen aufweist, wobei diese Anlageoberflächen einen solchen Keilwinkel aufweisen, daß, wenn eine zweite Zugvorrichtung (42) aktiviert wird, die durch den keilförmigen Teil (43) des Positionierungselementes verläuft, die Positionierungselemente so gepreßt werden, daß die Positionierungselemente einen bogenförmigen festen Stapel bilden.
  3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Stapel durch eine elastische Abdeckung eingeschlossen ist, die Feuchtigkeit und Schmutz ausschließt.
  4. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß eine im wesentlichen U-förmige Magnetvorrichtung (18) eine Klammer (19) aufweist, die an dem freien Ende des Arms (10) befestigt ist, wobei diese Klammer von einer solchen Länge ist, daß die Magnetvorrichtung in einer Entfernung von der nach unten gewandten Seite der Scheibe (16) angeordnet ist, wenn die Scheibe sich in ihrer Ruhestellung befindet.
  5. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Befestigungsvorrichtung (2) einen länglichen Körper (4) und mindestens eine Klemmvorrichtung (5, 6) aufweist, mit welcher der Körper an einem Achsenrohr des Fahrzeugs befestigbar ist und mit welcher der Körper drehbeweglich und horizontal und vertikal verschiebbar entlang des Achsenrohres des Fahrzeugs ist.
Anspruch[en]
  1. A mounting apparatus for an anti-skid device attached to a vehicle by a fixing device (2) of the kind which includes a pulley (16) provided with chain pieces, (17) said pulley being caused to rotate by bearing on the side of a vehicle wheel (9) whereby the chain pieces, when the wheel and thereby the pulley rotates, are successively thrown between the wheel and the ground, characterized in that said fixing device carries an arm (10) that is flexible essentially in one plane, to the free end of which the pulley (16) is rotatably attached, the arm comprising a plurality of positioning elements (20) each including a hard material having at least a first and a second contact surface arranged to diverge at their front end from each other to permit the first contact surface of a positioning element (20) to be brought into contact, in a fixed position, with the second contact surface on an adjacent element, said positioning elements being held together at their back end by a contracting means (21) and enclosing at least one resilient (22) means which, in a first position when the contracting means is in a curved resting position, forces the elements to diverge from each other, and in a second position when a first pulling means (15) acts against the force of the resilient means and the contracting means, forces the contact surfaces of the elements in to interact and form rigid stack.
  2. A device according to claim 1, characterized in that the positioning elements (40) each have a third and a fourth contact surface that create a wedge-shaped part (43), emanating from the element part (41) that comprises the first and the second contact surfaces, said contact surfaces defining such a wedge angle that, when a second pulling means (42), which runs through the wedge-shaped part (43) of the positioning element, is activated, the positioning elements will be pressed so that the positioning elements form an arched rigid stack.
  3. A device according to any one of claim 1 or claim 2, characterized in that the stack is enclosed by an elastic cover, shutting out moisture and dirt.
  4. A device according to any one of claim 1 or claim 2, characterized in that an essentially U-shaped magnetic means (18) has a clamp (19) fastened to the free end of the arm (10), such clamp being of a length that the magnetic means is located a distance from the downwardly turned side of the pulley (16) when the pulley is in its resting position.
  5. A device according to any one of claim 1 or 2, characterized in that the fixing device (2) comprises an elongated body (4) and at least one clamping means (5,6) for securing said body to an axle tube of the vehicle and being effective to render the body turnable and horizontally and vertically displaceable along the axle tube of a vehicle.
Anspruch[fr]
  1. Appareil de montage pour dispositif d'antidérapage attaché à un véhicule par un dispositif de fixation, du type comprenant une poulie (16) pourvue de chaînes (17), ladite poulie étant amenée à tourner lorsqu'elle repose sur le côté de la roue (9) d'un véhicule, les chaînes, lorsque la roue et, donc, la poulie tournent, étant successivement amenées entre la roue et le sol, caractérisé en ce que le dispositif de fixation porte un bras (10) flexible essentiellement dans un plan, à l'extrémité libre duquel la poulie (16) est montée rotative, le bras comprenant une pluralité d'éléments de positionnement (20) constitués chacun en un matériau dur présentant une première et une seconde surface de contact, disposées de telle sorte qu'elles s'écartent l'une de l'autre au niveau de leur extrémité antérieure afin que la première surface de contact d'un élément de positionnement (20) vienne en contact, dans une position fixe, avec la seconde surface de contact d'un élément adjacent, les éléments de positionnement étant maintenus ensemble à leur extrémité postérieure par des moyens de resserrage (21) et comprenant au moins un organe élastique (22) qui, dans une première position où les moyens de resserrage sont dans une position de repos recourbée, force les éléments à s'écarter les uns des autres et, dans une seconde position où un premier organe de traction (15) agit à l'encontre de la force de l'organe élastique et des moyens de resserrage, force les surfaces de contact des éléments à agir l'une sur l'autre et à former une pile rigide.
  2. Dispositif selon la revendication 1, caractérisé en ce que les éléments de positionnement (40) présentent chacun une troisième et une quatrième surface de contact qui forme une partie (43) en forme de clavette, prolongeant la partie d'élément (41) qui comprend les première et seconde surfaces de contact, lesdites surfaces de contact définissant un angle tel que, lorsqu'un deuxième organe de traction (42), qui s'étend à travers la partie (43) en forme de clavette de l'élément de positionnement, est activé, les éléments de positionnement seront serrés de telle sorte que ceux-ci forment une pile rigide de forme arquée.
  3. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la pile est logée dans une enveloppe élastique qui la protège de l'humidité et de la saleté.
  4. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce qu'un organe magnétique (18), sensiblement en forme de U, possède une bride (19) fixée à l'extrémité libre du bras (10), d'une longueur telle que l'organe magnétique est disposé à distance de la face, tournée vers le bas, de la poulie (16) lorsque la poulie est en position de repos.
  5. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le dispositif de fixation (2) comprend un corps allongé (4) et au moins un organe de serrage (5, 6), destiné à fixer ce corps sur le tube support du véhicule et agissant pour rendre le corps rotatif et déplaçable, horizontalement et verticalement, le long du tube support d'un véhicule.






IPC
A Täglicher Lebensbedarf
B Arbeitsverfahren; Transportieren
C Chemie; Hüttenwesen
D Textilien; Papier
E Bauwesen; Erdbohren; Bergbau
F Maschinenbau; Beleuchtung; Heizung; Waffen; Sprengen
G Physik
H Elektrotechnik

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