DE1247163B - Solid tires made of rubber or the like - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

B 60c

German class: 63 e- 21/01

Number: 1247163

File number: C 2793311/63 e

Filing date: September 14, 1962

Opened on: August 10, 1967

The invention relates to a solid tire made of rubber or the like for vehicle wheels, friction wheels, Caterpillar guide wheels or the like with a plate-shaped, extending essentially over the width of the tire, at a distance from the seat surface of the Tire arranged foot reinforcement, the edge areas of which are bent towards the tire seat surface in the way or are angled that the lateral edges of the foot reinforcement in the corners of the tire body are formed by the tire seat on the one hand and the tire sidewalls on the other hand are.

It is known for solid tires made of rubber or the like, whose plate-shaped, essentially Foot reinforcement that extends across the width of the tire and is spaced from the seat surface of the tire to be designed so that on both edges of the foot reinforcement successive in the circumferential direction Recesses arise. However, these recesses have only been chosen to reduce the weight of the foot reinforcement.

In the case of solid tires of the type mentioned at the beginning, the lateral edges of the foot reinforcement can during the molding of the tire in its shape at the corners of the tire body mentioned Support the molding surfaces of the vulcanizing mold, so that there are special means for holding the foot reinforcement superfluous during tire manufacture. However, this advantageous arrangement has the Disadvantage of the risk of insufficient molding of the tire body in the area of the aforementioned Corners of the tire body.

The invention is based on the object, through a special design of the edges of the foot reinforcement a correct, sharp-edged formation of the tire body in the area of the aforementioned To reach corners. At the same time, undesirable stresses should be expected in the solid tire mentioned at the outset be avoided in the area of the corners of the tire body.

To solve this problem, the invention provides that the edges of the foot reinforcement by known per se, successive recesses in the circumferential direction only in places up to the Corners are enough.

Through these recesses, on the one hand, there is a sufficiently good shaping at the edges of the foot reinforcement or achieved in the corners of the tire body, on the other hand, however, the possibility remains the support of the edges of the foot reinforcement on the surfaces forming the corners of the tire body the vulcanization mold.

Solid tires made of rubber or the like

Applicant:

Continental Gummi-Werke Aktiengesellschaft,

Hanover, Königsworther Platz 1

Named as inventor:

Heinz Kühn, Nieder Werbe (district of Waldeck)

An embodiment of the invention is shown in the drawing. It shows

1 shows a partial section through a solid tire vulcanizing mold,

F i g. 2 a partial section through a solid tire for a vehicle wheel,

F i g. 3 the foot reinforcement for the tire according to F i g. 2 in plan view.

The foot reinforcement 1 consists of an annular one that extends over the circumference of the tire perforated sheet metal strips, the recesses of which are denoted by 2.

To produce the solid tire, the sheet metal strip is inserted as a closed ring into the bottom part 3, Upper part 4 and intermediate ring 5 existing form inserted in such a way that the angled edges 6 of the sheet metal strip in the corners 7 of the mold cavity and find support there. at the molding of the tire, i.e. during the pressing or the casting or injection the edges 6 unwanted displacements of the sheet metal strip.

According to FIG. 2, the actual tire body 8 consists of rubber, with rubber layers being different Texture and hardness can be used. So the tire foot 9 of the solid tire be made of a rubber that is harder or tougher than the tire tread 10. Furthermore, it is possible to use the layer 12 immediately adjacent to the seat surface 11 in a comparatively harder tire base 9 or also with a tire base 9, which in terms of its properties practically corresponds to the rubber for the tire tread 10, made of a softer rubber, preferably to produce a rubber with a hardness of 50 to 65 Shore. In case of use a special rubber for the tire foot 9, this can have a hardness of 65 to 90 Shore have, while the tire tread 10 is generally less than the tire foot 9 Hardness.

709 620/149

Claims (1)

From Fig. 2 it can be seen that the main part, that is to say the middle part of the foot reinforcement 1, is parallel extends to the seat 11, in such a way that the central region of the foot reinforcement 1 at a distance from the Seat 11 and is arranged approximately centrally in the tire foot 9. The angled or bent ones mentioned Edges 6 end in the corners 13 of the tire body, those of the seat surface 11 and the tire sidewalls 14 are formed. For reasons of elastic deformation and for reasons of a favorable flow movement of the tire material When molding the tire, the recesses 2 of the sheet metal strip are the foot reinforcement 1 so arranged and dimensioned so large that seen in the edges 6 in the circumferential direction of the tire, Recesses 2 and the webs 1 'lying between them follow one another. The turn or Bending points are shown in FIG. 3 denoted by 15. The edges 6 are thus jagged or in a certain sense designed in the manner of a toothing in such a way that only the seal 'or the protruding Teeth reach into the corners 13. If the in F i g. 2 is loaded, the tire sidewalls 14 bulge to the side according to the dashed line 16 , and the edges 6 of the foot reinforcement angled towards the tire seat surface 11 have the consequence that the tire sidewalls 14 deform over the entire height of the tire, i.e. can bulge. It should also be noted that, if necessary, two or more foot reinforcement inserts can be embedded in the tire foot 9. Claim: From rubber or the like. Existing solid tires for vehicle wheels, friction wheels, crawler guide wheels or the like. With a plate-shaped, located in the substantially extending over the width of the tire, arranged at a distance from the seat surface of the tire Foot reinforcement, the edge areas of which are bent towards the tire seat surface in the way or are angled that the lateral edges of the foot reinforcement in the corners of the tire body are formed by the tire seat on the one hand and the tire sidewalls on the other hand are, characterized in that the edges of the foot reinforcement (1) by known, in the circumferential direction successive recesses (2) only in places up to the corners (13) range. Considered publications:
French Patent No. 1,289,027;
British Patent No. 11165/1915. 1 sheet of drawings 709 620/1 «7.67 © Bundesdruckerei Berlin