JPH10329512A - Vehicle pneumatic tire having curing heat-treated decoration member mounted on side wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably mount a decoration member on the side wall of a tire by a method wherein a decoration member is previously manufactured by using a comparatively rigid material such that a leg part is arranged at a tire side wall in a state to at least partially extend therethrough, in a pneumatic tire for a vehicle formed such that curing heat-treated decoration members are mounted on the side wall of the tire. SOLUTION: The decoration properties of a tire 10 are improved in a way that a number of decoration members 12 are embedded at intervals of a given distance in the side wall 11 of the tire 10. Each decoration member 12 is formed of a material further rigid than a parent material 26 of the tire 10, preferably thermoplastic or thermosetting plastic having the modulus of elasticity at least five times as large as that of the parent material 36. Further, in the manufacture, the decoration member 12 has, for example, an umbrella-form decoration member head 14 and formed in a mushroom-form shape where a leg part 15 is integrally molded on the under side 20 of the decoration member head 14. A through-hole 17 is formed in the fixed leg part 15 and during molding of the tire, the decoration member 12 is reliably held and fixed through a flow of the parent material 26 in the through-hole 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire having a decorative member which has been subjected to hardening and heat treatment attached to a side wall (side wall) of a tire, and more particularly to a pneumatic tire for a vehicle.

[0002]

BACKGROUND OF THE INVENTION Decorating components for vehicle tires are generally well known and are usually incorporated into the tire in the form of a chemical embedding of a color rubber layer when the tire is made to improve appearance. However, during the heat treatment, a shift occurs between the individual color layers and the other black tire sidewall areas. The sharp borders are blurred and need to be corrected usually by abrasion. This takes time and money.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tire having a decorative member of the type mentioned at the outset, which allows a sharp edge to be applied to the base of the tire and does not require reworking. Is to provide.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a tire, in particular, a pneumatic tire for a vehicle, in which a decorative member which has been cured and heat-treated is attached to a side wall of the tire. This is solved by the fact that the decorative part 12 has a foot 15 which is made and made of a material which is harder than the tire side wall 11 and which is at least partially penetrated by the base material 26 of the tire side wall 11.

[0005] Further advantageous configurations according to the invention are set out in the dependent claims.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS By the above-described procedure, it is possible to provide a pneumatic tire such as a passenger car and a bicycle, in which a decorative member can be separately formed from an unprocessed molded article of a tire and shaped into a tire. Similarly, solid tires can be provided with this type of decorative member used for penetrating or piercing scratch protection. The feet of the decorative element are pressed against the still soft matrix of the side walls while finishing the tire. In this case, the coarse base material flows through the through hole in the foot portion of the decorative member, and unites to form one continuous rubber molded product. After the hardening heat treatment, the decorative element flows through the through-holes, where it is held against the tire sidewall by the hardened rubber.

The decorative member is a material that is harder than the rubber of the tire, and at the same time acts as a puncture protection. For this reason, the decorative member is designed to have an elastic modulus at least five times higher than that of the base material of the sidewall of the tire.

[0008] Similarly, it also protects the sides when traveling close to, for example, the curb of a road. For this purpose, a large number of decorative members, together with the heads of the decorative members, are directly abutted against the side walls of the tire and subjected to hardening heat treatment, so that these decorative members are made of a material for the curb of ordinary roads more than the rubber mixture of the tire side walls,
That is, it has a coefficient of friction that is at least as small as a factor of 2 with respect to concrete, basalt, granite, and the like.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS The invention is shown in the drawing and is explained in more detail below.

A tire 10 schematically shown in FIG. 1 and FIG.
Has a side wall 11, on which a large number of decorative members 12 are embedded at predetermined intervals 27. These decorative members 12 are preferably the base material 26 of the tire 10.
It is formed of a harder material. The decorative member 12 is advantageously made of a thermoplastic or thermosetting plastic having a modulus of elasticity at least five times greater than the modulus of the matrix 26 of the sidewall 11 of the tire. Base material 26
Has a softening temperature of 150 ° C or higher.

For example, as shown in FIG. 2, the decorative member 12 is produced in various colors, that is, in multiple colors. The colored decorative members 13 are arranged on the side wall 11 of the tire in various figures or characters.

The decorative member 12 (or 13) shown in FIG.
Is formed, for example, in a mushroom shape and has an umbrella-shaped decorative member head 14, and a foot portion 15 is integrally formed on a lower side 20 of the decorative member head. The feet 15 are rounded 16 to avoid damaging the base material 26 of the tire sidewall 11.

The fixed foot portion 15 has a through hole 17 through which the coarse base metal 2 is formed when the tire 10 is formed.
6 flows. After the hardening heat treatment, a strong fixing that securely holds the decorative member 12 or 13 on the base material 26 occurs.

The decorative member head 14 has a hollow space 25 to save weight. Similarly, materials that are already porous and of low specific gravity from the house can be used.

As shown in FIGS. 4 to 7, the foot 15 can be formed in various ways. FIG. 4 shows a decorative member 12 having a U-shaped foot 21. U-shaped foot 21 under lower side 20
Surrounds the through hole 17, and the coarse base material flows through the through hole 17 during molding.

FIG. 5 shows a decorative member 12 having an arcuate foot 22. Here, in order to improve the flow of the coarse base material during molding, there is an exhaust hole 33 communicating with the decorative member head 14 to the outside. During finishing, the still uncured heat-treated base material presses out the air under the decorative member head 14 to the outside,
The through holes 17 completely match. In this way, the through-hole 17 is filled well and completely.

FIG. 6 is a perspective view showing the decorative member 12 having a square foot 23 in a plan view. The square foot 23 has two intersecting through holes 17 and 17a.

FIG. 7 shows the decorative member 12 of FIG. 6 having a square foot 23 rotated by 45 °. The square foot 23 has a central hollow space 24, as can be seen on the lower side 20 shown in FIG. The through holes 17 and 17a of the hollow space 24 intersect each other to provide the necessary firm anchoring of the poured base material 26 of the tire side wall 11.

The decorative member 12 is firmly fixed to the side wall 11 of the tire when the base material 16 is molded and cured and heat-treated.
For example, when traveling with the tire 10 along the side of a curb on a road, this anchoring section prevents the side from moving.
For this example, the decorative members 12 and 13 are made of a wear-resistant material that is at least 30% better than the base material 26.

FIG. 9a shows the decorative member 12 with a number of feet 15 on the lower side 20, as shown in FIGS. 9b and 9c. As shown in FIG. 9d, the decorative member 12 is fitted into the base material 26 together with the feet 15 at various points.

As shown in FIGS. 10 a, 10 b, and 10 c, the decorative member 12 is divided into a number of individual parts 19 by separation seams 18. These individual parts 19 are used to improve the handling of the web 3 before and during loading in the heating mold.
They are connected to each other via the target fracture point formed in FIG. Once the tire 10 has been cured and heat treated, the webs 31 may be broken or the separation seam 18 cut with a laser. Each individual part 19 has a unique foot 15 or 20 by which the individual part is
0 is fixed to the base material 26.

As shown in FIG. 11, such individual parts 19 can be used, for example, as rain tires, as an indication of certain utilization characteristics of the tire 10, for example. The decorative member 12 or 13 can also be formed to be reflective, illuminating, re-illuminating or fluorescent. These decorative members may be printed in color.

In another configuration, there is an adhesive layer 29 on the lower side 29 of the foot 21 as shown in FIG. These adhesive layers 2
9 further connects the foot 21 to the base material 26. The mechanical fixing of the foot 21 to the through hole 17 is thereby assisted.

In another configuration, FIGS. 13a, 13b and 13
As shown in c, a large number of decorative members 12 are loaded into the supporting base material 32 together with the decorative heads 14 at intervals 27. The supporting base material 32 with the loaded decorative member 12 is placed on the tire 10 for molding. In this case, the supporting base material 32 is finished to be flush with the surface of the sidewall 11 of the tire.

After the curing heat treatment, the supporting base material 32 is separated from the decorative member 14. These decorative elements 12 are in recesses in the tire wall 11 and are protected from damage.

[0026]

As described above, the pneumatic tire according to the present invention having the decorative member allows a sharp edge to be formed on the base of the tire and eliminates the need for reworking.

[Brief description of the drawings]

FIG. 1 is a plan view of a side wall of a tire in which a large number of decorative members are mounted as penetrating protection.

FIG. 2 is a plan view of the sidewall of the tire of FIG. 1 having various colored decorative members;

FIG. 3 is a cross-sectional side view of the decorative member of FIGS. 1 and 2 with a hollow space saving weight;

FIG. 4 has a foot formed in a hanger shape.
3 is a side view of the decorative member,

FIG. 5 is a side view of the decorative member of FIGS. 1 to 3 having a hanger-shaped foot and an exhaust hole;

FIG. 6 is a side view of the decorative member of FIGS. 1-3 having square feet with holes that intersect each other;

FIG. 7 is a side view of the decorative member of FIG.

8 is a plan view of the lower side of the decorative member of FIG. 3,

9: a: a plan view of a decorative element which can be divided; b: a back side of the decorative element of FIG. 9a; c: a side view of the decorative element of FIGS. 9a and 9b; 9a to 9c are schematic partial enlarged views of decorative members,

10: a: a schematic partial enlarged view of a decorative element mounted on the side wall of a tire consisting of individual parts connected to one another via a web, b: with webs separated by separating seams between the individual parts FIG. 10a is a schematic partial enlarged view of the decorative member of FIG. 10a mounted on the side wall of the tire; c: a plan view of the decorative member of FIGS. 10a and 19b with a separating seam later attached between the individual parts; The underside of the decorative member of FIG.

FIG. 11 is a plan view of a side wall of a tire having a cured decorative member and a cut separation seam.

FIG. 12 is a cross-sectional view of a side wall of a tire provided with a decorative member that has been subjected to a hardening heat treatment having an adhesive layer, a foot portion, and an adhesive layer on a lower side.

13: a: sectional view of a supporting base material having a decorative member put in a head of a decorative member, b: supporting base material loaded in a curved portion of a sidewall of a tire and having a decorative member put in the head of the decorative member C is a cross-sectional view of the side wall of the tire after removing the supporting base material having the decorative member that has been subjected to the heat treatment by hardening with the stiffener of the foot.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Tire 11 Side wall (sidewall) of tire 12 Decoration member 13 Color decoration member 14 Head of decoration member 15, 15a Leg 16 Roundness 17, 17a Through hole 18 Separation seam 19 Individual part 20 Lower side 21 U-shaped foot 22 Arc-shaped foot 23 Square foot 24 Hollow space 25 Hollow space 26 Base material 27 Gap 28 Adhesion layer 29 Lower side 30 Depression 31 Web 32 Support base material 33 Exhaust hole

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Ralph Kwack, Germany, 30906 Izernhagen, An der Rie, 4 (72) Inventor Heinrich Meier, Germany, 31707 Haessen, Cantstrasse, 11

Claims (22)

[Claims] Claims: 1. A tire having a decorative member subjected to hardening and heat treatment attached to a sidewall of a tire, particularly a pneumatic tire for vehicles
The decorative member (12) is separately manufactured in advance and is formed of a material harder than the tire side wall (11).
The tire (15) characterized in that the decorative member (12) has a foot (15) at least partially penetrated by the base material (26). 2. The decoration member (12, 13) is formed in a mushroom shape and has a head (14) of the decoration member and feet (15, 15a, 21, 22, 23) having through holes (17). The tire according to claim 1, characterized in that the base material (26) of the side wall (11) of the tire is hardened and heat-treated through the through hole (17). 3. The feet (15, 15) of the decorative members (12, 13).
The tire according to claim 1 or 2, characterized in that the tires (15a, 21, 22, 23) are rounded (16). 4. The decorative member (12) has a large number of feet (1).
The tire according to any one of claims 1 to 3, wherein the tire includes (5, 15a). 5. The tire according to claim 1, wherein a plurality of decorative members (12, 13) having decorative member heads (14) are separated from each other by a gap (27) and subjected to a hardening heat treatment on the tire side wall (11). The tire according to any one of claims 1 to 4. 6. The method as claimed in claim 1, wherein decorative elements of different colors are used.
The tire according to the item. 7. Tire according to claim 1, wherein the decorative member (12, 13) has a separating seam (18). 8. The separating seam (18) has a decorative member (12,
The tire according to claim 7, wherein the tire is cut after being subjected to a hardening heat treatment. 9. The tire according to claim 7, wherein the separating seam is cut with a laser. 10. The individual parts (19) of the decorative members (12, 13) separated by the separating seam (18) each have one foot (15, 15a, 21, 22, 23). The tire according to any one of claims 7 to 9, wherein 11. The separate parts (19) of the decorative elements (12, 13) separated by separating seams (18) are connected to one another by webs (13) for molding. The tire according to any one of claims 10 to 10. 12. The tire according to claim 1, wherein the decorative member has an elastic modulus which is at least five times greater than that of the base material of the side wall of the tire. The described tire. 13. The decorative member according to claim 1, wherein the decorative member is made of a thermosetting resin or a thermoplastic resin having a softening temperature higher than 150 ° C. Tires. 14. The tire according to any one of claims 1 to 13, wherein the decorative member (12, 13) is provided on a side wall of the tire with respect to a material of a normal road curb, that is, concrete, basalt, granite or the like. The tire according to any one of claims 1 to 12, wherein the tire has a coefficient of friction smaller by at least a factor of 2 than the rubber mixture of the item (11). 15. The decorative member (12, 13) has a hollow space (25) inside.
14. The tire according to any one of 13). 16. The tire according to claim 1, wherein the decoration members (12, 13) are formed of a porous material. 17. The tire according to claim 1, wherein the decorative members are designed with a collar. 18. The decorative member according to claim 1, wherein the decorative member is formed to be reflective, illuminating, re-illuminating, or fluorescent. The described tire. 19. The decorative member (12, 13) is at least 30 times less than the base material (26) under the sidewall (11) of the tire.
The tire according to any one of claims 1 to 18, wherein the tire has good abrasion resistance by%. 20. A foot (15, 15a, 21, 22, 2)
The tire according to any one of claims 1 to 18, wherein 3) has an adhesive layer (28). 21. A foot (15, 15a, 21, 22, 2)
21. The tire according to claim 20, wherein the lower side (29) has an adhesive layer (28). 22. The decorative member (12, 13) has a depression (3).
22. Tire according to any of the preceding claims, characterized in that it is placed in the side wall (11) of the tire at 0).