DE1729706C2 - Method for producing a pneumatic vehicle tire and device for carrying out the method - Google Patents

Description

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Drawing described for example; this shows a rib 12 therein, as can be clearly seen from FIG. 4

1 shows a perspective view of an emergence. The rib 12 solidifies when it is on

guide form of a tire,. a length 1 has penetrated into the groove in this

F i g. Figure 2 is a cross-sectional view through the tire condition. . before molding and vulcanizing, 5 the width S and the depth D of the annular groove 10

F i g. 3 a sectional view through the in one must be carefully selected. It should be noted

Forrr. for molding and vulcanizing that the depth D has a certain relation to the

Tire and width stands by the desired width of the

Fig. 4 shows, on an enlarged scale, a cut white stripe 2 on the tire, i.e. through the

view by the in F i g. 3 tires shown. io external appearance, is set. With relatively too large

Fig. 1 shows in perspective a section through width S , but a very large amount of rubber becomes

recognize a tire. In this embodiment, enter the groove, the position of the carcass

is a black tire 1 on each side with two affected, leaving an adverse affect on

thin white stripes 2. The two exercised the hoop. To avoid this,

linear stripes2 on each side of the row 15 the width should be determined such that * c

fens 1 lie on concentric circles around the hub lies within certain limits,

as a common center point, so that when rotating- The depth D of the annular groove 10 is outside of the

the wheel the stripes as a clear concentric width 5 "in a certain relation to the vulcanization

Ring.e visible outside the rim edge. speed and should be so great that the

Fig. 2 shows a section through the tire rib 12 can be formed properly. When the blank is placed in a mold in which the width S, the depth D and the vulcanization speed are formed and vulcanized. Fabric layers 3, 3 'wedge of the rubber determined in the right way serve as the carcass. Becoming a vulcanizable black, the rib 12 will be without disturbance until the rubber body 4 is thickened in the middle, while length 1 grow into the annular groove 10. In this trap between the rubber body 4 and the edge each 25, the white rubber body 5 and which is a white vulcanizable rubber body 5, extremely thin black rubber layer 6, which covers the end of the white rubber body 5 on the side edge of the rubber body 4 is applied, as can be seen in FIG. 2 and admitted smoothly without any disturbance into the annular groove 10, a black, vulcanizable rubber layer 6, step. If the length 1 is sufficient, that which is extremely thin — for example 0.2 mm — is the thickness ε of the black rubber layer 6 at the end 13 from the white rubber body 5. It is clear that the rib 12 will be extremely small and that the rubber body 5 will be arranged at points thickness S 'of the white rubber body 5 at the end 13 at which the white stripe or stripes will later appear approximately the given width S of the annular groove 10 . The vulcanizable parts will speak "

cambered so that it takes on the shape of a tire.

and then placed in a metal mold, in wheel tires (26 "X IV" with 2 mm side wall

which they are molded and vulcanized. thick) satisfactory results are achieved,

1 * 1 g. 3 shows a section in which the molding and when the width S is about 0.5 to 2.0 mm and

Vulcanizing can be seen. A right and a depth D of the annular groove 10 is longer than 2 mm.

Left metal mold 7 and 8 are placed against each other, 40 The manufactured and vulcanized in this way

so as to define a ring-shaped interior, tire is taken out of the metal mold,

L ■ u »? ^S · ^{besitzl tire} is inserted ^{in the} end 14 vuiKanisierbare whereupon each rib 12 having a diameter tire. Is separated by so that the white stripes 2 appear as in the internal pressure P in an air bag 9, which is shown by FIG.

Pressure air, which is supplied through a valve 9 ', 45 Although a case is mentioned for the sake of simplicity, the tire against the inner wall has been described in which a black tire 1 of the metal mold is pressed _{with white, white} ring-shaped strips 2 ^

M-Viif £ · ⁸ ο 4 reveal, if j.de is, a combination of other metal forms 7 ozw. 8 with a required number of colors can be used, and the white shaped annular grooves 10 can be provided, which at their ends 50 strips are replaced by other patterns consisting of ventilation ducts 11 with the atmosphere in fine lines or letters, which are marked by Connected. When the vulcanizable parts are shown fine lines. In addition, the mold interior may be against the wall of printed by using a multiple layer of verwerden flows a part of the white rubber different colors in place of the individual rubber-Ki, w ^m * · ί · ^daruberlie g ^en black 55 position 6 pattern with thin seams of lines he rubber layer 6 into the annular groove 10 and forms aim.

1 sheet of drawings

Claims (2)

shaped ribs are profiled. In doing so, Vorloraugcu KF ι demarcation for the claims: ^^ JFlLTv ^ JhTschicht to get the 1. Method of making a vehicle ribs ^^ ZZSSn ^ tZtlt pneumatic tire with at least one decorative 5-inch smooth UDera * u ring-shaped Circular ring imf at least one side wall, if by shooting ^ if necessary ^ d bi Wikl d Rifhli i area »dentifibigeiK Circular ring in at least one side wall, at ßJ ^ if necessary ^^, «. which is essential when winding the green tire in the area »dentfaibigeiKautecbuU ^ _{after {d} , il i fblih d over this V ^ J _i the _{after {d} , of the side wall part one color from the rest of this _{one clear} demarcation line On the side wall different rubber layer on, which is made for serum s brought and s is a thin sidewall io a ^ZUS ^ ^llC _w ^h l _e j ^N _{e very} Swierig, such a strip is covered, the green tire under grazing wöbe in *, it £ £ rubber in the form of forming a circular collection of gref me to the other one ^^ ^^. ^ tire sidewall is vulcanized and the er- a ^clean J ⁿ ' _{because it is also} known lift on the vulcanized tire up to a circle while predetermined height is removed, characterized by .5 J ™ *** ^ fSeiendeSchich over a pre-marked, that the formation of the formation of the cover Elevation in a width between a lot of determinable, allow ^^^^, _from up to the full extent of the thickness of the side wall, the> e uncleanliness aiicn nu and a grinding relative to the thickness of the side wall - ^ z _U -ehr be e.ügen is ^ ^^ greater depth with a regular Fheßen *, Em ^ onzeransch side wall ornament ^requ the sidewall strip and the color comparable ^ ^a ^ _r g ⁿ ^ ⁿ "ede Unreeclmäßigkeit in the thickness, schedenen rubber layer resulting overall, ^he.. ' _f. .. ^J * v ^ ipnint "or in the Vc> - ■ speed and under almost complete education a kreisnngformigen V.rz [Z ™ ° f ™ ° ™ V ^ of the approach education the survey from the running of a boundary line. Particularly in the case of a rubber layer of different colors, 5 turning rac ugly ms eye i * and the removal of the elevation according to the sense of a solehejTV eration ^ "^ Vulcanization by cutting off the elevation Task of the invention ' ⁵ ^" ^^ ,, ^ at their approach. drive * of the genus ™ »f ™ ^ ⁿ ^ 2. The method of claim 1, characterized overall-equitable ^ ™ "\ * ^{ui. Cm"} _de ^R f 'Ssier it indicates that the color different 30 simplified N ^ hbcarbenung of Nulkan s.ert. Rubber layer made of a plurality of layered tires with zvve. concentric to the axis of the reef, ... that with different colors together sharp border lines are created, when occupied ^g 3 vulcanizing mold for carrying out the provision that the formation of the elevation m a drive according to claim 1 or 2 with at least 35 width between a ^ rIeI to ^{the full V} ^ of a lateral annular groove, characterized in the thickness of the side wall and a [ opposite d that the annular groove (10) in the zero base has a thickening of the side wall 8 ™ ^ «" ^ * ^ * ^ _d "ventilation duct (11), its width (S) approximately regular feet of the Se-tenwandstre fens and each one Simple quarter to the thickness of the side wall ergebendeη color different Kautschuksd Jt and its depth (D) more than the side wall thickness 40 speed and under nearly full andiger A s education _concerning AENT des'Ansatzes the survey from the farb.ich ⁰ different. Rubber layer takes place and the Ab wear the bump after vulcanizing you rc :, The survey is cut off according to its approach. ₊₅ A major advantage of the invention was seen that with the dimensions provided according to the invention for the width and depth of the Elevation, due to the flow of the sidewall strip in the formation of the approach, the different The invention relates to a method of producing colored rubber layers over the entire changeover a vehicle pneumatic tire with at least one catch each having such a constant thickness, üab decorating circular ring on at least one side concentric to the tire axis, extraordinary wall, in which when the green tire is wound, sharp boundary lines are formed. Another \ arten The area of the side wall part one color of that of the invention can then be seen, that the remainder Side wall different rubber layer 55 processing is limited to the butt applied and severed with a thin sidewall their approach with a knife. ^ strip is covered, the green tire under In an advantageous development of the verAusbildung a circular elevation of the driving is provided that the color is different Tire sidewall is vulcanized and the elevation rubber layer consists of a plurality of layers is composed on the vulcanized tire except for a predetermined 60 with different colors. Height is removed. The invention also relates to a vulcanizing mold Such a method is already known with at least one lateral annular groove in which to (French patent 1 342 575), in which the implementation of the method according to the invention has a ventilation channel with a different colored rubber layer and an annular groove and theirs these covering sidewall tires had a width of about a quarter to the simple width of the raw tires is molded and vulcanized, the wall thickness and depth being greater than that of the side wall the rubber layer and the thickness of the molding. Sidewall strips with two concentric, ring- The invention is described below with reference to the