DE1919396A1 - Tire segment for building a solid tire - Google Patents

Description

4690 Herne, - - - "88S9 'Kiischen 23,

'l.-I »g. "r..H; Bah. ^

Pal.-App. Herrmann-Trentepohl Dipl.-PhyS. Eduard ΒβΐΖίβΓ Telephone: 39 8011

^{Telephone :} \ %% Dipl.-Ing. W. Herrmann-Trehtepobl "2

PATENT LAWYERS

Te'ie "x" 08 229 853 "^ Telex 05 245 62

■ «k Λ A " \ ft ff bank accounts:

\ 31 3 O y O Bayrische Vereinsbank Munich 952 287

Dresdner Bank AG Herne 202 436 368

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Ref.:. M 01 570 B / il

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Watts Ü! Yre ά RuliToer Company limited, High Street, Lydney, Glouicestershire, England

iieifeiise-oTnent for building a solid tire

The .r'lrfinclung refers to tires and is directed in particular on solid vehicle tires with several radially arranged and segments converging at an angle with the help of a metal band are held together, which is passed through aligned openings in the segments, and the tire segments holds together under pressure over the circumference of the tire.

According to one feature of the invention, a tire segment for the construction of a Yöll tire consists of. a, rubber or rubber-like material, which internally by natural ^; or syntactic, in an arbitrary order. lasers is amplified. The term "rubber-like" is also intended to include all plastic materials with suitable elasticity properties. In a further embodiment of the invention, the randomly arranged lasers have randomly distributed lengths.

The segment can be molded or section of an extruded one represent length. The full segment may be random from the reinforced material can be molded or extruded. It is ever-

but it is often preferable to have only one main body part from this Material "consists and the radially outer Sndr or. Tread part is made from another compound » "For example from one of the materials known as" tread J-Guromi "marked. The main body part, which is reinforced by a rally The segment can be molded or extruded first be, where one. the tread part separated on the main part even before the assembly of the tire or as a circumferential, Borrowed running surface after the segment has been assembled partly applies to the tire. However, it is preferable to use the ... and running surface part - one piece, in the .Sense to produce, that they are produced in the same molding or extrusion process. and therefore. to a one-sided · and- unit. l-i7 ..., The whole thing solidifies * -..... ", ..

According to a further aspect of the present invention, a segment for building a solid tire thus consists of a main body part and. a, ... different tread portion, · rubber or rubber-like material, wherein the _segment: al.sganzes is prepared for producing a unitary whole and cured. The-main part of the segment- can with. ... A long side opening should be provided, which takes up a metal band, which forms the tension band, ... which also holds the segments under pressure in the assembled tire. This opening runs between two mutually, tensile, inclined side surfaces which meet the adjacent side surfaces of the adjacent segments in the tire. a protruding pin is designed _// -.s.ein. ^; -.- 'x while the other surface is given a corresponding discharge run.g - molded so that pins and cutouts can be made ^ aLifeinaadertr.ef- "fender segments .sich" mutually block and. in order to prevent a / lateral relative displacement of the segments .and., iB; s- "especially this during: the" assembly, the tire, an.Qost- r and "place". · -One can hold during: the - ? 5 ormvQrgang: _s:; ausGh "r. _o cooling channels in the form of grooves," dre. -over the side surfaces. ,. . - '-.:'-;-

When extruding, the extruded material length can thereby

ORIGINAL INSPECTED

are hardened that they run through a tunnel furnace before cutting off the individual segments, which then be punched accordingly to produce the opening.

The material of the body part of the segment is preferably a synthetic or ITature rubber, which by random lengths natural or synthetic fibers is reinforced, for example Cotton fibers, wool fibers, jute fibers, silk fibers, Nylon fibers or metal fibers. With metal reinforcement you can Use steel fiber, but brass fiber is usually used to bond to rubber for better results or other metal fibers that have a brass coating are used. Glass fibers are a very suitable reinforcement material and come in the form of cut-to-size glass fiber mats or straight-cut resin-impregnated fiberglass cords used.

The fiber reinforcement material can be produced by re-cutting shredded, uncured tire tread, although the material can also be produced by conventional rubber processing techniques, where ταε, η are the randomly distributed lengths of threads or fibers during the mixing stage, but before curing, in amounts added from Degree of strength and / or wear resistance of the finished segment are determined. Another method for producing the reinforced material is to coat or impregnate threads or fibers in their existing or woven form with rubber and / or plastic material. The finished layer material is then crushed and then ground into a shape that makes it suitable for shaping. The random distribution of filaments or fibers, which exist in different directions in three dimensions, provides a high degree of tensile strength and wear resistance for the molded article without significantly affecting the flexibility or elasticity of the rubber or similar material.

90984 / ^ / 1306

Also, "when using a molding or casting process, that is complete segment desirably a one-piece molding with all or only a major portion being random is reinforced when the reinforced part is made from a homogeneous mixture, although the possibility there are internal cracks or lines of weakness. In order to avoid this, according to a preferred embodiment, this is caused by chance Distributed reinforcement material in the mold with a multiplicity of inlays made of uncured layer material introduced so that the finished shaped and hardened segment k is a laminate. This method is particularly suitable if an outer part made of non-reinforced tread rubber is provided. The insoles can be of different lengths have, which are chosen so that they come to lie in the form such that the generally tapered shape of the finished segment is guaranteed. In such an insert construction, some of the inserts do not need the inner one have random reinforcement or they can be surrounded by non-reinforced rubber.

The scope of the invention is therefore complete Solid tires made of a large number of segments *, each made of a cast or continuously cast body made of rubber or rubber-like * Made of material and reinforced inside with natural or synthetic fibers that are in a completely random arrangement. As mentioned earlier, each segment is preferred a one-piece body with a non-reinforced outer tread portion.

The invention is described below with reference to the drawings will be described, for example, several embodiments reproduce. The drawings show in:

Figure 1 is a side view of a typical segment;

Fig. 2 is a section along the line II-II of FIG. 1 of a

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Execution of a segment! . . . -

-Mg »3. a similar section of another design oil "- ■, ■ of a segment; and in - = ■ - ■

4 shows a somewhat visual representation of a tire;

■ from the segments according to one of the preceding instructions poor is built. -.:..- '. - "■ - · ..

Each segment ΐ has the shape of a rectangular pad,. Its inner- Eanteneeken are cut off at 2 so that one can put the hoop on the-have '.. in the usual way the side surfaces of the cushion inclined towards each other, as if mowed can be seen most clearly from Figv 2 .: and 3 ^. ss .that that Cushion in its floorboard from the outer running yeast seams -3 to the inner thinner edge 4 decreases, with assembly the right number of segments, face to face to manufacture of the tire this present in a ring shape j as it Figi 4 shows. In the assembled soaps deliver the outer ones Edges 3 of the .individual segments 1 the .continuous circumferential running surface of the .tire. ..-. . . . ...... ...

The segments 1 are provided with elongated openings 5 between the inclined side surfaces, which meet similar surfaces of adjacent segments in the assembled tire, this opening 5 having parallel side edges and rounded ends, as can be seen from Fig. 1. The opening is provided symmetrically, but is somewhat closer to the inner edge 4 than to the outer tread edge 3. When the tire is assembled, the openings 5 of the segments 1 that meet one another receive a metal tension band G , which the. holds the entire tire together under circumferential pressure on the segments.-On the-left-hand side of the -Fig. 4 is .. a part of a complete tire is shown, which consists of segments according to FIG. 2, while the right side of this figure shows part of a tire made up of segments

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is created according to Fig. 3 * - ': ■ - · .- ■ ·. ■:. \; U. ■> '- ·· .-

. The segment of Figure 2 is a homogeneous moldings "äüäß-uli-mi * the dutch randomized and random County | ^{eii:> 'äuf-;} weisende'natürliche or künstliche'Fäden or fibers · ^νβτ-" ■ - : - strengthens ¹ is Ϊ The atisprint "homogeneous"'is in Sem Siniie vöic-' implies that the entire molded body consists of the same randomly '"' reinforced material. As you can see from the drawing * is a.plane. Tread provided, although of course this can also be designed to produce a perfectly suitable tread pattern in the assembled soap.

The segment 1 according to FIG. 3 has a main body part with a similar randomly reinforced rubber, but in this case a tread part 7 is provided which is smooth, that is to say not is reinforced and consists of "tread" rubber provides the desired grip and has the desired wear properties. From the drawings you can see that so-called Studs are provided, which are particularly suitable for vehicles that travel in soft ground and a special one Make elasticity and tensile strength necessary. However should be pointed out again that the tread part 7 may have any desired shape to form any desired "'tread pattern.

Another difference to the segment according to FIG. 3 is there in that the reinforced main body part is a laminated body with a plurality of inlays 8. These deposits are initially inserted into the mold one on top of the other, with the tops of two inserts between the outer and inner Edges 3 and 4 are shorter, as can be seen from Fig. 3, so that they are generally the wedge shape between inner edges and adjust tread part 7. When placed in the mold, each insert consists of unhardened randomly reinforced Rubber, which is made of flat sheets as passed through a Guimni mill arise, is cut off. During the form or

- 7 9098U / T306 " ^: " ^:

During the casting process, the rubber insert and the rubber tread are hardened, so that, a bound one-piece layered Main body with great strength without lines of weakness and with a tread part 7 made of a material that so it is chosen that .the desired elasticity, the desired grip and the special wear properties are guaranteed are.

- Patent claims: -

9 0 9 8 A U 1 1 3 0 6

Claims (24)

M 01 570 B / il Watts Lyre & Rubber .. Patent for claims: (1st tire segment for the construction of a Vell tire, 'thereby ^ "^ marked that it is made of a rubber or rubber-like material is made internally by natural k or synthetic, present in random order Fibers is reinforced. 2. Tire segment according to claim 1, characterized in that the arbitrarily arranged fiberii have randomly distributed lengths. 3. Tire segment according to claim 1 and / or 2, characterized in that "indicates that the complete segment is made of randomly distributed reinforced material." - * "· 4. Tire segment according to claim 1 or 2, d a "d u r c h 'ge indicates that a main body portion of the segment is made of randomly reinforced material and an outer end tread part is made from another compound. 5. Tire segment according to claim 4-, d a d u rc h characterized in that the other connection is so-called "Treads" guismi is. 6. Tire segment according to claim 4 or 5 »thereby g e ken η ζ e i c h η e t that the body part of the segment first made and then the tread part is applied. 7. Tire segment according to claim 6, dad u r c h g e k e η η - - 9 90 984 47 13 06 draws that the tread part by one over the The circumferential applied tread is formed after a number of segment body parts have been assembled into the tire are. 8. tire segment according to claim 7, characterized that body and tread part form a one-piece body, which in the same operation is made and cured to form an integral whole. 9. Tire segment for building a solid tire, characterized by a main body part and a tread part made of different rubber or rubber-like materials, the segment being cast or extruded then hardened as a whole to produce an integral construction. 10. Tire segment according to one or more of the preceding claims in the form of an IPorm ader cast body or one Part of an extruded length consisting of the material or materials mentioned. 11. Maturity segment for the production of a solid tire, consisting from a 3-shape or cast body made of rubber or rubber-like Materia.1, made inside by natural or man-made fibers is reinforced in a random order. 12. Tire segment according to claim 11, characterized in that there, s segment with an elongated lateral opening is formed to receive a metal band, which forms the tension band that the segments under Pressure holds together when the tire is assembled. 13. Re if ens eminent according to one or more of claims 4 to 9 and claim 12, characterized in that - 10 - 909844/1306 , - ίο - that the opening is formed in the body part. 14. Tire segment according to one or more of claims 11 to 13, characterized in that one Surface of the segment provided with a protruding pin and the other surface with a corresponding recess is so that when the tire is assembled there are pins and recesses segments that meet one another lock against each other for mutual definition. '"■■■" · " 15. Tire segment according to one or more of claims Ί1 to 14, characterized in that the randomly reinforced material is in layer form with a multitude of bonded deposits that are individually internally reinforced by natural or synthetic fibers in a random arrangement. * :: ■. ■ 16. Tire segment according to claim 15, d a d u r c h g e k'e ^ n η draws, that at least some of the deposits are overlapping Lengths between the inner and outer. The edges of the segment are thereby converging Adjust the shape of the segment between these edges. 17, tire segment according einem.oder more of the preceding claims, characterized geke η η ζ η calibration ety äa.a some of the surfaces is provided with cooling channels in the form of grooves at least, the erstrek- across surface lcen. , · 18. From segments according to one or more of the preceding Claims built solid tires. 19. Solid tires built up from a large number of segments, the segments aus.einem molded or continuously cast part of a. Consist of rubber or rubber-like material, which is randomly caused by natural or synthetic fibers 9 0 9 844/1306 - 11 - Order is reinforced. 20. Process for the production of a segment for solid tires, ■ dad u rc- g e k e η η ζ e i c h- η et that the segment from a. Rubber or rubber-like material with internal reinforcement made of natural or synthetic fibers or cut from an extruded amount of such a material. 21. A method for producing a segment for a solid tire, characterized in that a mold with -unhardened rubber or rubber-like material with _:. an inner reinforcement made of natural or artificial .. Fibers filled, the form closed and the .I-Iaterial underneath .. '; ■: pressure is hardened. . _; 22. A method of making a tire segment according to claim 21, characterized in that the in .the. form used, fiber-reinforced .material, by re- ., grinding of comminuted, uncured tire cords ; is. 23. A method for producing a tire segment according to one or more of claims 20 to 22, characterized in that en η ζ ei c h η e .t that this accidentally increased Material is placed in the mold in several layers of uncured material, so that the finished molded and cured segment is a laminate. 24. Method for producing a segment for a solid tire Claim 20, characterized in that that the extruded length of material is hardened prior to cutting into sections, those sections then for the production of the long sleeves to accommodate the metal band as a drawstring that pulls the segments under pressure in zussnm ^ ngebauten Solid tire holds together, to be punched. 909844/1306 Lee on the side