MXPA99005317A - Flexible link for securing to a carrying structure each wheel of a road vehicle loaded on means of conveyance - Google Patents

Abstract

The flexible link is a securing strap (2) which rests on the tyre (5) and is tightened with respect to two fixed points on a carrying structure (7) by which the ends of the strap are retained with fixing pieces. The surface in contact with the running tread comprises successive groups (25) of a plurality of transversal support elements (26) in the form of rollers with a central rod and widened ringed tips (28) and (29) forming contiguous rail wheels by which the strap rests on the tyre. This invention is applicable in the field of transport when the load consists of road vehicles.

Description

FLEXIBLE LINK TO ENSURE TOTA CARRIER STRUCTURE EACH OF THE WHEELS OF AN AUTOMOTIVE VEHICLE CARRIED ON A TRANSPORT ENVIRONMENT The invention relates to an securing strap for the immobilization of a wheel of an automotive vehicle loaded on a carrier structure during its transport. The invention described in U.S. Patent Number: 5,108,237 to ZANKICH refers to a securing strap having transverse support elements on the rim of the skates genre. These transverse elements are mounted free sliding along the strap between two stops. These stops define for each skate a slip length whose value is in relation to the length of the displacement of the strap between the placement on the rim and the end of the tensioning after securing. The object of this invention consists in making a fixed support on the rim, allowing the displacement of tensioning of the strap around the rim. This solution requires the use of runners formed in sub-surface according to the inclination reliefs, for example in the form of points located in the middle area of this sub-surface. On the other hand, the contact support is fixed and determined as regards its location from the placement of the girth. This support contact can not be shaken and from this fact the positioning of the strap needs a particular treatment to avoid that one of the reliefs of the sub-surface of a skate is in front of a cavity of the sculpture of the rim. Many varieties of securing straps provided for the same purpose of immobilization of an automotive vehicle by its wheels on a carrier structure are already known. It is first of all classic straps that present blocking structures directly on sub-surfaces. The use of these straps has diminished due to the deterioration that they can cause to the tread of the rim. After tensioning the webbing, the locking structures move on the rim and damage it. The securing straps with runners are also known. The strap carries on the rim by means of several skid-proof skates whose sub-surfaces are formed in blocking structures. The webbing slides on the smooth upper surface of the skates after putting it into tension. After these movements, the skids remain immobile and thus eliminate the main drawback of the first straps that risk damaging the rim by forced displacement of the locking structures under the restriction of a pressing force. However, these last straps are not without disadvantages. In fact, the presence of the skates makes the placement of the straps more difficult because to put them well you must use both hands. However, the good placement of the skates is essential because if they are not placed properly, there is a risk of not ensuring their function. In addition, the support force of the skids that comes from the tension of the strap causes a vertical incrustation of the skate that, on certain rims of protruding sculpture, runs the risk of damaging the neighboring reliefs contributing to the rim defects of geometric regularity. These deteriorations can generate difficult vibrations, even impossible to suppress. Now, it is for most of the wheels of new cars, and for certain demonstration, these annoyances affect the esteem of the brand in the spirit of the consumer. The object of the invention is to eliminate all the above drawbacks. For this purpose, it refers to a flexible securing link to a carrier structure of a means of transport for each of the wheels of an automotive vehicle, a link that is made up of a strap that has immobilization structures in contact with the support. tire tread, and which is extended between two fixed points to carry on the rim, forcing the immobilization structures against the rim in support, characterized in that the immobilization structures are transverse support elements carried and maintained parallel to each other and free in rotation movement over they themselves by the girth, the ends of the transverse support elements protrude transversely from one part of the girth to the other, these transverse elements are in abutment contact with the tread of the rim at their ends projecting transversely from one another. part and the other of the cinch. Most of the numerous advantages of the invention can be stated as follows: any deterioration or deformation of the rim is suppressed when putting in support carried out by rolling the supporting elements on themselves; the placement of the strap does not require any particular direction. The phases of the putting in place and tension are simple, fast and can be done with one hand; - the forms of the support elements are simple to realize the mechanical characteristics of a plastic base material are sufficient to transmit without damaging the necessary support force; the supporting structures are removable, which allows the part to be exchanged in case of deterioration or to be replaced by a different form suitable for special rims or other uses; the bending of the rod of the transverse support elements under the effect of the tension of the strap improves lateral maintenance; the constitution of two bands of the strap allows the upper band only to suffer tension. Other features and advantages of the invention will appear in the following description given by way of example and accompanied by the drawings that they represent: Figure 1: a perspective view showing the webbing in place and extended on the rim of a wheel; Figure 2: a profile view of a type assurance of an automotive vehicle wheel; Figure 3: a perspective view of the cinch assembly with its fixings; Figures 4 and 5: detail views in enlarged perspective of a part of the strap corresponding to a group of transverse support elements, respectively of the inner face and the outer face of the strap, - Figure 6: a view of profile of the enlarged part corresponding to figures 4 and 5; Figure 7: a transverse schematic section of the tension web on a rim through a transverse support element. The strap 1 according to the invention is a flexible link 2, for example a double or locally folded band 3 of textile material, intended to secure a wheel 4 of an automotive vehicle by means of immobilization support on its rim 5 having a tread 6 for an aid to the maintenance of the automotive vehicle on a carrier structure 7 of a means of transport. By way of example, the carrier structure has a carrier plane or a platform 8 in flat perforated plate 9 or formed in a square or rectangular wave. The perforated sheet 9 has on its face or carrier faces oblong perforations such as 10 with full or perforated edges 11 arranged in linear series and used as anchoring points for the fixing or anchoring parts of the ends of the strap or for the element intermediate of forwarding. The anchoring pieces 12, 13 of the ends of the strap are made, for example, in the form of a metal hook, wherein each curved end 14 is housed in a bore 10 of the carrier structure 7 and of which the other end has a transverse part. 15 on which the end of the strap is mounted pivotably by means of for example a return loop of the end 16, 17. As a variant, it may be considered to replace the first or the two end hooks by a retaining contact 18. (Figure 3) of identical cut to the shape of the perforations but of slightly lower dimensions so that they are hooked in the opening of the perforation and after a quarter turn constitute an anchoring point. The retaining contact 18 is pivotably connected to a link rod 19 extended by a triangular end 20 in which the end loop 16 of the web passes. As shown on Figures 2 and 3, this type of anchoring will preferably be used for the first end of the strap located on the right side of these figures. The webbing has on its end part opposite its first end a manual tensioning device, for example ratchet 21 with maneuvering handle 22. This same terminal part is folded downwards and against the rim by an anchor ring 23 anchored by a hook 24 in a perforation 9 adjacent to and on which the strap slides so that the terminal portion towards the second end has a broken in-line configuration bent downward and passing closer to the rim, allowing the girth to remain in contact with the rim over a longer length (Figure 2). In order to improve the immobilization of the rim, the girth according to the invention has on its useful length one or more groups 25 each having a plurality of transverse support elements such as the ones 26 held parallel and joined together by the girth specially provided to the girth. right of these transverse support elements as will be seen later in the present. The latter can affect various technical forms and be maintained by the girth in different ways. The shape represented on the drawings constitutes the preferred variant. These are rectilinear elements in the general form of a roller with a central part in the shape of a rod 27 terminated on each side by identical elongated ends 28, 29 which have a cylindrical structure with single or multiple rings, for example two or three 30, 31, 32 , of greater diameter than the central part formed in the rod. This conformation provides the transversal support elements with a general appearance of a weight form. This annular structure makes it possible to carry out on each side of each roller an inclination zone according to a single or multiple support by means of one or several parallel and longitudinal contact features at the level of each of the elongated ends 28, 29.

This parallel succession of annular grooves that form the ends of; The rollers ensure a better lateral behavior of the strap on the rim with respect to the lateral stresses to which the transported load is subjected, for example in the turns. The rounded shapes of the periphery and the section of each of the elongated ends 28, 29 of the rollers provide a contact pressure by rolling after tensioning the webbing. You can thus avoid any injury to the rim or deformation of your sculptures and improve the immobilization contact. Instead of traveling on the tread or being forced in one place against the rim, the transverse support elements 26 ensure the function of pressure rollers that are progressively pressed against the rim during its displacement-bearing movement resulting from put the cinch in tension. Thus, no deterioration due to sliding or displacement can occur. The transverse support elements 26 can be similar in many repetitive groups 25 at constant intervals 33 of each other or presented in a regular series at constant intervals over the entire useful length of the webbing. For particular needs, it may be considered to vary the interval 33 between the transverse support elements, for example a small interval in the central part and a larger interval at the ends of the useful length of the strap. Preferably, the web is made up of two superimposed webs, for example of textile material related to one another and fixed to each other, for example by stitching. An upper tension band 34 and a lower maintenance band 35 of the transverse support elements 26 are distinguished. The lower maintenance band 35 can be continued over the entire length of the upper tension band 34 or exist only in the zones of presence of the transverse support elements 26 or also to exist only by sections in the vicinity of each of the transverse support elements. The maintenance is ensured by a loop such as 36 of the band or the lower band portion that partially surrounds the rod 27 of each transverse support member 26, the other part of the rod is covered by the upper tension band 34. To improve the maintenance of the transverse support elements 26, each loop 36 carrying a transverse support element is delimited by two parallel transverse seams along the central part in the rod 27 on one side and the other thereof.

Thus, the transverse support elements 26 are always located under the upper tension band 34, which allows a better maintenance and support work of this upper band. Figure 7 shows the work of bending of the rod 27 of each transverse support element 26 and the slight biasing movement of its ends 28, 29 when these elements are subjected to a supporting force that comes from the tensioning of the strap. Due to the plasticity of the material from which the transverse support elements 26 are formed, these were deformed in the manner shown on Figure 7. The bending of the rod 27 will be reported as a supporting force on the rim through the lower maintenance band 35 and the deformation in the bias separation of the ends 28, 29 will make it possible to improve the seat of the assembly. The local subsidence corresponding to the level of the rod 27 and the ends of the transverse support elements will increase the contact surface with the rim, which will have the effect of improving lateral maintenance.

Claims (9)

1. Flexible link (2) for securing a carrier structure (7) of an automotive vehicle by means of at least one of its wheels (4), the link consists of a strap (1) having immobilization structures in the form of transverse elements (26) with bearing contact surface with the tread (6) of the rim (5) equipping the wheel (4), the ends (28, 29) of these transverse elements (26) projecting transversely from a part and the other of the strap (1) that is extended between two fixed points to carry on the rim (5) forcing the support of the immobilization structures against the rim (5), characterized because: - the transverse support elements ( 26) carried by the strap (1) are free to rotate about themselves and put their ends (28, 29) in abutting contact on the rim (5); these transverse support elements (26) are in abutment contact with the tread of the rim at its ends (28, 29) projecting transversely from one part of the strap to the other.

The securing link according to claim 1, characterized in that the central part of the transverse support elements (26) is rectilinear and cylindrical in the shape of a rod (27) and the ends (28, 29) that protrude transversely are generally cylindrical and of section superior to the central part.

3. Assurance link according to the preceding claim, characterized in that the ends (28, 29) are identical.

4. Assurance link according to the preceding claim, characterized in that the ends (28, 29) are formed in ringed structures.

The securing link according to any of the preceding claims, characterized in that the transverse support elements (26) are maintained parallel to each other by the strap (1).

The securing link according to claims 1 and 2, characterized in that the webbing is formed of two webs, an upper tension band (34) and a lower maintenance web (35) surrounding the webs (27) of the maintenance elements (26) on a part of its lateral surface by means of a loop (36), the other part is covered by the upper tension band (34).

The securing link according to the preceding claim, characterized in that the lower maintenance band (35) is connected to the upper tension band (34) in the vicinity of the transverse support elements (26).

8. Securing link according to any of the preceding claims, characterized in that the transverse support elements (26) are divided into several groups (25) inside which are arranged at constant intervals one of the other. The securing link according to any one of the preceding claims from 1 to 7, characterized in that the transverse support elements (26) are evenly distributed over the entire useful length of the webbing (1).