WO2017125616A1 - System for securing a tyre to a rim and for the internal sealing of the rim, which can be used to convert a typical assembly with a tube into a tubeless assembly - Google Patents

Abstract

The system consists in mounting a small tyre and the corresponding tube inside the regular tyre and on the rim. Upon inflating same, it creates a seal against the regular tyre and forms an assembly equivalent to a tubeless assembly. The invention is characterised in that the tyre is inflated using a valve that is coupled to the sidewall or using a duct that connects the interior of the rim to the regular tyre. See drawings on page 1/1.

Description

 SYSTEM OF FIXING THE TIRE TO TIRE AND INTERNAL SEALING OF THE LIANTA.

THAT ALLOWS TO CONVERT A TYPICAL MOUNT WITH A CAMERA IN ONE WITHOUT A CAMERA.

SECTOR OF THE TECHNIQUE

The invention, as expressed in the wording of the present specification, refers to a system that converts a rim assembly, pneumatic chamber γ into one that dispenses with the camera. This system prevents breakage by crushing the wheel chamber, the tire's tire exit and, in turn, improves safety in case of pressure loss of the tire. The system contributes to the function to which it is intended, features of novelty, which will be described later and which represent a notable improvement over the systems currently known for the same purpose.

More specifically, the object of the invention, with a simple and novel design, significantly increases safety, by preventing the rupture of the tire chamber by crushing against the rim, by firmly securing the tire against the rim, still deflated, and to serve as an auxiliary element of rolling of very advantageous characteristics on which the own rim would have against the track.

The field of application of the present invention is framed, fundamentally but not exclusively, within the sector of vehicles for use by unpaved tracks, where low inflation pressures together with the abundance of stones produce frequent punctures and deflation of the wheels .

BACKGROUND OF THE INVENTION

In vehicles that circulate on dirt tracks, mainly motorcycles, the wheels are usually composed of a rim provided with spokes, tire, camera and, frequently, a jaw system to fix the tire to the rim, to prevent it from moving relative to the rim. the rim and a tear of the camera occurs. This is so by using inflation pressures of 1 Bar or lower and not being able to ensure that the inflation pressure is that which guarantees the fixation of the tire to the rim. This is the system commonly used by motorcycle and vehicle manufacturers for use by ground circuits.

The most common drawback of the aforementioned system is that users use pressures of less than 1 Bar to improve the grip of the tire with sliding pads, reducing the pressure to 0.5 bar levels. between 0.5 to 1 Bar, taking into account stones and logs, it is common that crushing of the tire against the edge of. the rim, which can produce a cut in (to camera and the immediate deflation of the same one;

There are different solutions in the market aimed at addressing the problems mentioned, which can be grouped into 4 types, all of them, as we understand, with disadvantages on the Utility Model claimed. They are briefly described;

Reinforced and reinforced chambers: Consisting of - mounting thicker chambers, they increase the weight remarkably, they are also machined against the rim,

Mousse; It consists of replacing the camera with a crooked element! ^' dense foam rubber. They are expensive, heavy items, they degrade with use, they must be replaced frequently and the pressure equivalence they provide is not adjustable.

Inner sealing of the flame radii: adhesive elastic adhesive systems together with valve assembly sealed in the rim, replacing the camera. This system, at the required low pressures, does not guarantee the fastening of the tire to the rim or its sealing.

Tubliss System: It consists of replacing the usual chamber and clamp with three elements, a small tire with a perforation on the outside, a metal piex that goes through that perforation and also serves as a pneumatic tire-rim and an inner chamber. This inner chamber must. ^' swell at pressures of 7 Bar so that the set baga tight seal against the tire, which is not always achieved _*

Thus, the system object of the present invention that is claimed, is intended to anortar remarkable advantages in terms of results, simplicity and security. We must point out that, at least for part of the applicant, the existence of any other system or similar invention that presents technical, structural and constructive characteristics similar to those presented by the aphicitor is not known and whose details are included in the final claims that accompany the present descriptive report.

EDUCATION OE THE INVENTION

Specifically, the invention proposes, as already pointed out above, a consistent system, in assembling a. small tire, specially designed for each model of rim and tire, inside the usual one and on the same rim, inflating the usual tire through a valve coupled on its side, with respect to the traditional system of spoke rim, tire, camera of inflation and clamping jaw, the new system replaces the clamp and the camera with three elements: 1) Sealing element -similar to a small tire ^» that is mounted on the same rim ,. inside the Habitual tire.

 2) Chamber adapted to the dimensions of the sealing element, which swells from the rim,

 3} Tire inflation valve to adapt to the lateral side of the tire.

When the chamber (2) is inflated, the small tire (1) adapts to the rim and presses the internal flanks of the tire, producing the seal against it and its firm attachment against the rim, with pressures from 2 to 3 Bar. The external tire inflation, is coupled in the side flaneo of this and thus be able to "adjust the pressure to the desired one. A variant to the valve (3), on the sidewall of the tire is an elastic conduit that adhered to i. side of the element (1), extends to the rim to be able to inflate from this -see drawings-.

In tire-rim systems that do not use a camera -ubless-, it is enough to use the elements (1) and (3). In case of loss of pressure of the usual tire, it is firmly fixed to the rim by the inner sealing element, which in turn serves as a support and prevents the tire from making contact with the ground and a severe loss of grip occurs. .

DESCRIPTION OF THE DRAWINGS

BRIEF EXPLANATION OF THE DRAWINGS., - They would encamp to this memory drawings on page 1/1. Figure 1 shows the section of all the elements that make up the normal assembly and lists the elements that compose it and that are more detailed below.

Figure 2 shows the section of the system variant that is mentioned in claim 6. To complete the description that is being enhanced and to help a better understanding of the characteristics that distinguish it, it is accompanied in this report, about drawings in which, with illustrative and non-limiting character, the following is represented:

1) Sealing element - "Similar to a small tire - mounted on the inside of the usual tire, which fits the same perimeter of the tire.

 2) Chamber adapted to the dimensions of the sealing element, which is

 from the rim,

 3) Inflation valve of the tire to adapt if lateral side of this ..

 4) Tire on which the tire is mounted.

3) External tire in contact with the ground. By inflating the chamber {2}, the small tire {1} adapts to the rim and presses the internal flanks of the tire, producing a seal against it and its firm attachment against the rim, with pressures of 2 to 3 Bar. inflation of the tire of use, external, is coupled on the lateral side of this and so to be able to adjust the pressure to the desired. Also through conduit adhered to the inner side of | I) that is shown in the variant of figure 2,

In tire-rim systems that do not use a camera -tuhless - just use the elements (1) and (3).

PREFERRED EMBODIMENT OF THE INVENTION

In view of the mentioned figures, and according to the numbering adopted, an example of a preferred embodiment of the invention can be appreciated, which comprises the elements that are described in detail below:

1) Sealing element - similar to a small tire. It is made of rubber-rubber-,: with reinforcement mesh inside and steel wires or fiber resistant at its edges. This element is designed to withstand maximum pressures of 8 bar, although the: pressure of not exceed S Bar .. The outer surface will be smooth, without drawing, to an adjustment seamless against ^'inside the conventional tire. This sealing element fits the same perimeter of the rim.

 2) Chamber adapted to the dimensions of the sealing element, which is inflated

 from the rim,

3) Tire inflation valve to adapt to the lateral side of the tire. This valve will be mounted in a small hole made with pulls in the tire {5}, can be glued by the inside of the tire (5), screwed or come already retreaded in the tire (5) by its manufacturer. The variant swollen from ilant ^'to, the sealing element (1) has to be provided for inflating conduit from ia rim.

Having described the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to extend its explanation so that any expert in the field understands its scope and the advantages derived from it, stating that, within its sirereiaildad, may be carried out in other forms of realization that differ in detail from _: Indicated by way of example, and which will also reach the protection that is collected as long as it does not alter, change or modify its fundamental principle .

Claims

1.- FOAO0N SYSTEM OF THE TIRE TO THE RIM AND INTERNAL SEAL OF THE RIM, WHICH ALLOWED TO CONVERT A TYPICAL ASSEMBLY WITH A CAMERA IN ONE WITHOUT A CHAMBER that, having the purpose of ensuring 1.a fixation of the tire- to the rim, the sealing of this against the rim, - even radius or perforated rims, is characterized because it is composed of a sealing element Ü) - similar to ^' small tire -, a inflation chamber of the element of $ eitado {2) -no needed in non-perforated rims - and a valve | 3 | to engage on the flank of the outer tire in contact with the track, 2. SYSTEM OF FIXING THE TIRE TIRE AND SEALING INTERNAL LANTA, which converts A TYPICAL MOUNTING WITH CAMERA IN ONE- tubeless according to the relvirnlieación i, t & m & er ^'Mue because the sealing element Cí j abricará , preferably of reinforced rubber, with dimensions suitable for fitting to those of the rim and tire where it will be mounted, with the reinforcements in its internal structure and edges to withstand pressures of up to 8 Bar, without any perforation except variant claim 6 ^a , with a external surface of smooth or concentric ribs so that it adapts seamlessly to the inner flank of the wear tire (5). 3, - PNEUMATIC TIRE STRIKING SYSTEM AND INTERNAL SEALING OF LANTA, OUE ALLOWS TO CONVERT TYPICAL MOUNTING WITH CAMERA IN ONE WITHOUT CHAMBER, according to claim 1--2, characterized in that the sealing element (1) will be designed so that when its outer perimeter is inflated, it is greater than that of the rim edges (4). 4. · · EPAOON SYSTEM OF TIRE TIRE AND INTERNAL SEALING OF LANTA, WHICH ALLOWS TO CONVERT TYPICAL ASSEMBLY- WITH CAMERA IN ONE WITHOUT CHAMBER, according to claims 1-3, characterized by disposing, or not, a chamber 2) adapted to the dimensions of the sealing element (1) to inflate it, expand it on the wear tire 5) and produce the seal. In case of a rim of the ehiess type this chamber (2) is dispensable. 5.- SYSTEM OF FIXING THE TIRE TO THE RIM AND INTERNAL SEALING OF THE LANTA, WHICH ALLOWS TO CONVERT A TYPICAL MOUNTING WITH CAMERA IN ONE WITHOUT CHAMBER, according to claims 1-4, characterized in that the inflation valve (3) the tire of wear (5) may be any type or material, rubber, metal or omitted, may be glued, screwed or recauchiPada on the flank of wear eumetic (5), in the position that the user or manufacturer considered. 6, - SYSTEM. OF FIXING OF !. .NEUMATIC TO THE RIM AND INTERNAL SEAL OF THE RIM, WHICH ALLOWS TO CONVERT A TYPICAL MOUNT WITH CAMERA IN ONE WITHOUT CAMERA, according to claims 1-3, characterized by a variant (Figure 2) in which the valve inflates (3) the tire of wear {$} is coupled to! end of the elastic conduit, stuck on the internal side of the sealing element (1) and extending to exit through the rim -see figure 2-.