DE1923423A1 - Solid tires for vehicle wheels or the like. - Google Patents

Description

G ο nt ine η hai. ' kimml-Werke AG, Hannorer solid tires for vehicle wheels or the like.

The invention relates to one made of rubber or rubber-like plastics "existing solid tires for vehicle radar, ßleiskettenführung wheels, Friction wheels or the like with a replaceable tread, which is provided with inserts with high tensile strength and press fit with the inner ring of the solid tire is connected.

With solid tires designed in this way, the tread can only then be placed sufficiently firmly on the inner ring when the tread forms a practically inextensible, non-expandable Hing by the tensile inserts located therein and the press fit is carried out to such an extent that the inner ring is preloaded in pressure. This to achieve a sufficiently large frictional connection Required pretensioning of the inner ring leads to lateral bulges of this ring and inevitably to hardening the suspension. Such tires are therefore comparatively hard.

The invention is now based on the object mentioned at the outset Solid tires with replaceable treads should be designed in such a way that the solid tires can deflect softly and elastically.

To solve this problem, according to the invention, the layer of this ring located on the outer circumference of the inner ring is much harder and more tensile than the adjacent part of the inner ring that is firmly adhered to it. Due to the increased "comparatively large hardness of Sohicht" located at the outer periphery of the Innenringeβ makes this an annular body which is able to receive the information necessary for application of the Preßsities forces or substantially accommodate, in the manner that the här of the direct lie down do "inner ring unsohlossenen rest of Sohiohten

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Inner ring not or only insignificantly from the to achieve a Keep the required contact pressure free with sufficient friction will.

The aforementioned layer located on the outer circumference of the inner ring can consist of comparatively hard rubber or plastic. Eb is but also possible to provide metallic materials for this purpose, but with a firmly adhering connection between them on the outer circumference of the inner ring and the one below ■ k part of the inner ring is provided.

The drawing shows examples of embodiments of the invention. Show it

1 shows a partial section through a solid rubber tire for a vehicle wheel,

2 and 3 each partial sections through an exchangeable tread for the soap according to FIG. 1 and FIG

Figure 4 cut. A modified Toll tires in radial TeIlfc, and "was also for the tires of

Vehicles.

The tire according to Figure 1 is made in two parts. It essentially consists of a tire 1 and an inner ring 2.

The inner ring 2 has a hard-set foot 3 on its inner circumference, which can also contain tensioned wire, for example in the form of wire bundles, and has a contour that enables the solid tire to be mounted on a pneumatic tire rim 4. The internal rate of return 2 also has a ring-shaped cushion 5 "* f, since""α · there is a significantly greater amount than the other than the ToB 5, and. you a stroke Ju & _9. ': ■': <., * Jsrfaeh frOfier

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ist ale dl · Wall thickness of the foot 3 · The inner ring 5 is enclosed by a metal ring 6, which is firmly attached to the pad 5 is.

The tread 1 has a profile 7 * un -outer circumference and a vulcanized ring 8 on the inner circumference in a known manner saw plastic or metal.

The inner diameter of the ring θ on the one hand and the outer Durohaesser of the metal ring 6 are coordinated so that the tire can be connected to the solid tire substructure by pressing it onto the metal ring 6. The tread 1 is held in place exclusively by means of the friction sole «wipe the two rings 6 and Since the metal ring 6 has great rigidity, it is not deformed when the tread 1 is pressed on. Accordingly, the cushion 5 is not influenced. For this reason, the non-prestressed cushion 5 can come into its own when on the tire Impact.

As shown in Figure 3 is located on the inner circumference of the tread a tensile bandage made of vulcanized, sug-proof steel ropes 9 » which also form an annular body which cannot be enlarged in diameter. To improve the adhesion, a guamis wipe 10 can also be provided.

If the tire is worn or damaged by special influences, it can duroh a suitable pressing tool from the The substructure of the solid tire must be pressed off. A new tire 1 can then be pressed on.

The one on the outer circumference of the solid tire inner ring or the pad located, in diameter practically unchangeable metal ring 6 thus enables the tread to be exchanged without the

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Spring suspension properties of the inner ring β or the actual pad 5 due to the necessary for holding the tread 1 To affect compression.

Another proposal according to the invention is shown in FIG provided, the inner ring of the solid tire also with a metal ring 6 or a ring made of hard plastic or the like. Existing ring to be provided, which, as shown in Figure 1, is arranged approximately 2/3 of the height of the solid tire and is firmly adhered to the cushion ring 5 with its inner circumferential surface. Here is however, in contrast to FIGS. 1 to 3, the tread 1 is not provided with a tensile inner ring and held by a press fit, but firmly bonded to the outer surface of the metal ring 6. If the tread 1 attached in this way is damaged or has it worn out, the nooh located on the outer circumference of the ring 6 becomes any remaining rubber or plastic mechanically or in some other way worn away. A new tread is then attached by vulcanizing or gluing. In this case, the metal ring 6 has the task of forming a solid base for the tread 1; If a new protection is to be carried out, the solid tire is prepared for this when the rubber or plastic has been removed up to the metal ring 6. The metal ring 6 then serves in turn as a firm base or as a firm abutment for the hay pro tecting process.

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Claims (6)

Claims ι Toll tires made of rubber or rubber-like plastics for vehicle wheels or the like with a replaceable tire, which is provided with inserts with high tensile strength and is connected to the inner ring of the tire with a duroh press fit, characterized in that the layer (metal ring 6) located on the outer circumference of the inner ring (2) is considerably more hardened and more resistant to exposure than the one adjacent to it, which is firmly adhered to it Part (pad 5) of the inner ring. 2. Toll tire according to claim 1, characterized in that the am outer circumference of the inner ring (2) located layer is a metal ring (6) or a ring made of hard plastic. 3. Toll tire according to Anspruoh 1, characterized in that the tread (1) has an adhered Sing (θ) on its inner circumference made of metal or a tensile plastic, with the outer surface of which the elastically deformable tread part is firmly adhering connected is. 4. Toll tire according to claim 1, characterized in that the tread (1) has tensile strength threads, ropes (9) or the like on its inner circumference running approximately in its circumferential direction. 5. Toll tire according to Anspruoh 1, characterized in that the elastically deformable part of the barrel strip ens (1) fis «lisi» HH »it the on the outer circumference of the inner ring (2) located Sohioht (metal ring 6) is firmly connected. 6. Toll tires naoh claim 1, characterized in that the wall thickness of the located on the outer periphery of the inner ring (2) Sohioht (6) is at least five times thinner than the wall thickness of that enclosed by this layer during the compression of the tire elastically deformable sole (pad 5) of the inner ringβ. 009847/0495 ilannover, the 7th time in 1969
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