DE19837461C1 - Vehicle tire with a spiked tread pattern and transverse tread channels has equal spacing between each spike and either the preceding or the following pitch limit - Google Patents

Abstract

Spikes (Sa-Sd) are arranged at irregular spacing in raised blocks or ribs around the tire periphery and along at least 2, preferably 4-8 spike tracks (A-D). Transverse channels (3) are irregularly spaced around the tire periphery according to one or more pitch sequences. Within one (A) or more spike tracks: a) either the distance (Xa) of each spike to the preceding pitch limit or b) the distance (Ya) of each spike (Sa) to the following pitch limit is equal.

Description

The invention relates to a vehicle tire according to the Preamble of claim 1. Accordingly, the tire Cross grooves and spikes in the tread. Along the Axials are the spikes in a variety of at least 2 - preferably between 4 and 8 - distributed by spike tracks. All spikes are within profile positives like blocks or ribs, in particular not within grooves, arranged.

As further known in the art, both Cross grooves as well as the spikes along the circumference distributed unevenly. The uneven across the circumference The spacing of transverse grooves becomes more analytical shown in such a way that a very small number of Tread patterns (there is only one in over 90% of the tires) Patterns) stretched in a limited number of pitch lengths and is compressed and to an overall sequence over the circumference is closed. In the colloquial language of tire engineers this step is also known as "pitching".

According to the prevailing technique of pitching all circumferential dimensions of a profile element from a certain pitch limit. On Profile element with pitch length 1 then shows exactly this aforementioned dimensions. On the other hand, for example, a profile element of pitch length 1.1 in all in the circumferential direction pointing dimensions stretched by 10% compared to the aforementioned.  

The German utility model 18 88 907, teaches an im Center area essentially symmetrical tread profile. The arranged in this central area by about 45 ° slanted studs, vary in their circumference and Width extension according to a pitch sequence. One of the shoulders has a circumferential rib, in which many fine spikes in two offset spike tracks are arranged. In the on the other shoulder are coarse, elongated studs fewer and coarser spikes in it, all in one Spike track are arranged. They are in all three spike tracks Spikes evenly distributed over the circumference.

Because not only the tread blocks but also the spikes Contributing to noise emission is becoming more common these days assign the spike sequence from the pitch sequence co-governed that the center of the spike as another Profile detail is understood and accordingly Distance X to the neighboring leading pitch limit and the same its distance Y from the neighboring lagging pitch limit stretched according to the respective pitch length (thus: also stretched) or compressed (i.e. also upset). This approach ensures compliance of the aforementioned feature sure that - what the invention holds - spikes only within profile positives be arranged, so not in transverse or longitudinal grooves root.

For all pitched spike distributions known to us so far the possible spike positions were on winter tires always in a certain length proportion of the pitch length to one Pitch limit. An example:  

A possible spike position is 55% of the pitch length the lagging pitch limit. With a pitch length of 22 mm the possible spike position is at a distance of 12.1 mm before the lagging pitch limit (and 9.9 mm behind the leading). With a pitch length of 25 mm possible spike position at a distance of 13.75 mm in front of the lagging pitch limit (and 11.25 mm behind the leading). The spike distance variation to the pitch limit is therefore proportional to the pitch length variation.

In many previously known tires, the spikes in their tracks are always exactly in the middle between the leading and the trailing block edge, for example in DE-OS 24 50 629, as shown in FIG. 2.

DE 34 25 410 A1 describes a further development of the Profile element variation depending on a pitch sequence known: Here the intersection becomes within a block track the transverse groove with the axially outer, the block laterally limiting longitudinal groove placed on the leading pitch limit and the intersection of the transverse groove with the axially inner one Block on the other side delimiting longitudinal groove on the lagging pitch limit (or vice versa, at least alternately). Even if you are only two different pitch lengths would work so three different inclinations of the transverse grooves Axial.

There is also one further development of the profile element variation in Dependence on a pitch sequence known: Here are different dimensions of the block geometry - even those that have nothing have to do with a lateral limitation of the blocks, especially a kink - from different pitch limits (not just from one) dimensioned in the circumferential direction with the result that the pitch sequence also the block shape also varies.

As already known in the prior art, not everyone can Position that offers a pitch sequence as a spike position, actually set a spike. The law against the prescribed maximum number of spikes. To the For example, in some Scandinavian countries, a 15-inch Tires only have 110 spikes. Even if the tire is only 2 Would have traces of spikes, it is usually around 70 Pitches, i.e. 140 possible spike positions, only a part actually take advantage of it. The spike pitch sequence includes So there are always gaps compared to the profile pitch sequence. Here the invention does not want to change anything.  

The aforesaid fact forces between a teaching A that indicates spike positions that match the profile pitch sequence, and an apprenticeship B, which among the spike Positions selects those that actually work with you Differentiate spike. The invention is concerned only with A.

Interestingly, it is she who has the greatest impact exerts the sound; teaching B serves primarily the Grip optimization and has less impact on the tire noise, especially outdoors (when Interior noise a little more). On the grip optimization known teaching, one in particular in the axial as possible to strive for even distribution and period lengths Avoiding below the track length is also preferred captured with the invention.

So the invention addresses the problem, those Specify spike positions where a spike will be set may, with the slightest possible increase in tire noise, entirely especially the tire outside noise.

Could use unspiked winter tires with these Measures of advanced pitching on an inconspicuous, be brought as pleasant running noise, in which the sound energy similar to a noise on a broad Frequency band was distributed, so studded winter tires fall - apart from their naturally higher radiated anyway Sound power - so far still through a frequency spectrum with sharp peaks on what is perceived as tonal.  

Our human brain is happy from time to time about "feed", e.g. B. demanding attention high-pitched noises and especially when behind it there is an interesting message or emotion, but - also in other interpersonal relationships again and again watch - utterances the long-lasting attention challenge (especially by high tonality) as felt annoying, especially if none behind it interesting information is just the signal for the normal state.

The object of the invention is also for studded winter tires to come to a less tonal rolling noise.

The solution to this problem is in claim 1 specified.

The inventor has recognized that the previous spike distributions on winter tires - with the spikes always in their tracks exactly in one with the pitch length dimension with stretched or compressed distance to a certain pitch limit - for the unfavorable subjective noise assessments were responsible, at least in connection with the most common pitch sequences for the transverse groove distribution over the Scope.

In a first step, the inventor turned the tables and first put in an optimal pitch sequence for the spike tracks (or separately for each spike track) and drew drum around a positive sequence. The running noise on a hard road - where spike tires are the loudest - actually became more pleasant, but the profile block sequences generated in this way fell in unspiked execution compared to the previous solutions in the noise rating back.  

Despite a similar profile appearance, you would have completely different ones Vulcanization forms for studded winter tires on the one hand and on the other hand needed. But there are spiked winters mature only find a small market, this would be an investment become too expensive in relation to sales.

The inventor then came up with the solution according to the invention, with which he left the pitching of the profile positives untouched. This solution is characterized in that within at least one of the spike tracks, for example the spike track A,

• a) either said distance (Xa) of each spike (Sa) to leading pitch limit
• b) or said distance (Ya) of each spike (Sa) to each lagging pitch limit

is equal to.

If this teaching is really only applied within a single spike lane, then it should be applied according to claim 2 in the spike lane outside the vehicle, because - as the inventor has recognized - this has the greatest influence on the outside noise during the particularly important unaccelerated pass. Accordingly, such a tire is characterized in that it is side-bound (asymmetrical) and within the spike track (A) outside the vehicle.

• a) either said distance (Xa) of each spike (Sa) to leading profile pitch limit
• b) or said distance (Ya) of each spike (Sa) to each lagging profile pitch limit

is equal to.  

Has the second largest impact on the passing noise

• - Like the inventor, the interior of the vehicle Spike series, because it is also close to the sound Radiation-promoting tire sidewall. The two the most important rows of spikes for external noise are
• - in relation to the center of the tire - axially outer. Accordingly, according to claim 3, such designs of tires according to the invention are preferred in which within the two axially outer spike tracks
  • a) either said distance (Xa or Xd) of each spike (Sa or Sd) to the leading profile pitch limit
  • b) or said distance (Ya or Yd) of each spike (Sa or Sd) to the lagging profile pitch limit
  is equal to.

Such tires do not need to be sideways; she can be symmetrical without having to do this.

Notwithstanding this, however, are preferably according to the invention Tires sideways in the way, that is asymmetrical, that on the outside of the vehicle a denser spike arrangement is selected as on the vehicle interior. This affects hardly any traction and braking power, but increases clearly the cornering ability when cornering. While this was previously not justifiable for noise reasons, this is possible in connection with the invention.

The greatest possible noise-reducing effect is achieved with the embodiment according to claim 4, which accordingly within each spike track

• a) either said distance (Xa, Xb, Xe or Xd) of each Spikes (Sa, Sb, Sc or Sd) for the leading profile Pitch limit
• b) or said distance (Ya, Yb, Yc or Yd) of each Spikes (Sa, Sb, Sc or Sd) for each lagging Profile pitch limit

is equal to.  

In other words, it should be within everyone Spike track (which need not be fully occupied, in which means that not every pitch has to contain a spike) everyone Spike an invariant distance to any one of the two adjacent pitch limits (i.e. either for each leading or following). This However, invariant distance can be found in the different tracks be different, both the amount (see claim 6) as well as the orientation according to (see claims 7 and 8). However, within a track - this is the essential - it remains independent of the respective pitch length of both Orientation as well as the amount always the same.

It is accepted that at least some spikes are different remove the center of the block; such a distance will hereinafter referred to as "deviation". The pitch sequence is. preferably to match the block pattern design that according to claim 10 the amount is at most 8 mm is. The relatively large one, at least in some pitches Distance of the center of the spike from the circumferential center of the block in the considered track is a typical of the invention.

This deviation can occur in the axially outer block tracks in the Can usually be coped with more easily than in the middle of the tread, where the profiles are often more delicate. That's why it can be favorable from the invention only in one of or in to make use of both of the axially outer spike tracks, see Claims 1 to 3.

The inventor has recognized that such a deviation is the imperative the sufficiently firm spike rooting is not endangered, as long as the distance from the center of the spike to all edges or incisions of the positive profile carrying this spike corresponds to a minimum distance according to claim 11, which at Car winter tires are 7 millimeters, i.e. 85% of the Tread depth, absolutely more for winter truck tires.  

The application of the invention is particularly successful in car tires easy if the shortest blocks have a circumference of have at least 7 mm + 2 mm + 2 mm + 7 mm = 18 mm. At a The transverse groove width in the circumferential direction would have to be about 2 mm the shortest pitch must be at least 20 mm long. For truck tires the shortest pitch would have to be correspondingly longer.

The problem that the shortest pitch lengths are shorter than the 20 mm calculated above arises more frequently, especially when winter tires for cars are particularly quiet. Especially quiet profiles are usually characterized by a high total pitch; an example:
A pitch sequence wise
22 pitches of size 1.0000,
17 pitches of size 1.1213,
13 pitches of size 1.2647,
15 pitches of a size 1.4232 and
11 pitches of size 1.5476, so
a total of 77 pitches of an added relative size of
22.0000 + 19.0621 + 16.4411 + 21.348 + 17.0236 = 95.8748.

If the tire is to have a circumferential length of 1,820 mm, must be the shortest pitch length (the relative size 1.0000) 1820 mm / 95.8748 = 18.983 mm, thus less than 20 mm.

At least in such cases - but also with less delicate ones Tread patterns - it is recommended to according to the invention Develop claim 9; accordingly, individual spikes slightly laterally offset outside the other spikes of the considered track arranged. With the usual nowadays oblique course of the transverse grooves to the axial enables this the spike closer to the - there - block circumference length center bring up so that the compliance with the minimum distance of Falls 7 mm more easily or is possible at all.  

To quantify such an offset, it is preferred for each spike track, in the way indicated by this to resolve the conflict between noise-optimized spikes positioning on the one hand and strength of the anchorage in the Tread rubber, on the other hand, should be used, first a circumferential center line fixed. From this there is an axial offset positive on the inside and negative on the outside axially.

The amount of this lateral offset can be up to for car tires 185 mm tread width up to 15 mm (all the more, the fewer spike tracks are defined), with wider ones Tires correspondingly more, for truck tires up to 30 mm.

This axial offset leaves each offset spike at the same Add up time as he would in the unbroken arrangement. This effect is particularly easy to construct if - without prejudice to the inclination of the transverse grooves to the axial - in the axial area in question, the pitch limits are exactly axial (not inclined).

This trick works particularly well in the middle of the tread. There it is also required for many profiles, because this right in the middle for traction improvement are filigree while in the shoulder area - because the lateral forces in the outer corner when cornering Concentrate shoulder - are often coarser.

One with the same tread pattern as with the Invariance of the spike distance to the pitch limit according to the invention compatible spike positioning is particularly easy and also visually appealing if - as such from the initially recognized DE-GM 88 12 422.3 known - according Claim 12 different dimensions of the positive geometry of different pitch limits from dimensioned in the circumferential direction are.  

For example, a left leading corner of a block be dimensioned from the leading pitch limit (invariant!), a middle leading corner from the lagging pitch limit and a right leading corner in turn from the leading corner. A lagging left corner could be from the leading pitch limit from (invariant!) and the lagging middle and the lagging right both of the lagging pitch limit.

The invention is explained in more detail below with the aid of a few figures explained. It shows:

Fig. 1 in perspective, to scale view of a tire according to the invention with four rows of spikes, wherein the spike distribution according to the invention is shown on the periphery in all four rows of spikes,

Fig. 2 shows a scale plan view of a developed cylindrical projection of studded tread of the tire according to Fig. 1,

Fig. 3 is a scale plan view of a developed cylinder projection of a spiked tread similar to that of FIG. 2, but with an application of the noise-reducing teaching only in the two axially outer tracks of spikes and

Fig. 4 is a scaled plan view of a developed cylinder projection of another spiked tread with two axially outer and four axially inner tracks of spikes, the noise-reducing teaching according to the invention is used in all six tracks of spikes and axial offsets are shown in the inner spike tracks.

Fig. 1 shows in a perspective and scaled view obliquely from the front a tire 1 with a non-rotation-bound and non-bound side surface 2. Four rows A, B, C, D of spikes are arranged on this tread 2 . These spikes are addressed below with a four-digit reference symbol, namely an "S" for spike in the first position, a small letter indicating the row in the second position, and an Arabic number in the last two places in which the Spikes of each row A, B, C, D are numbered starting from an arbitrarily determined first spike. For example, the spike Sb04 is the fourth spike in row B.

Only these complete reference symbols are used in the figures; in the text, however, the clarity increases due to the formation of groups: the spikes Sb are all spikes in track B; Similarly, the spikes S04 would be all spikes in the axial strip 4 in all four tracks, i.e. the spikes Sa04, Sb04, Sc04 and Sd04. And "S" is the reference symbol for every spike par excellence.

Fig. 2 shows for a more detailed illustration of a plan view of a developed cylindrical projection of studded tread 2 of the same tire 1. The image scale is chosen to be slightly enlarged; the shortest pitch length should be 20 mm.

Notwithstanding that this tread - as before said - is not bound to the direction of rotation, will be described below assumed that the actually used sense of rotation of the Direction from the wide lower sheet edge to the wide upper one Correspond to the sheet edge. (Of course, the opposite could also be the case to be agreed; there just has to be some agreement Allow clear identification to be made.)  In the left block track A are in the second and in the fourth block a spike Sa02 and Sa01 set from above. The pitch limits fall in this spike track A with the trailing block edges together.

It is essential for the invention that the Spike Sa01 in the equal distances Ya to the pitch limit lagging behind him is arranged like the Spike Sa02 and all others - in this part of the picture is no longer recognizable - Spikes Sa.

In the said second block from above, in which the spike Sa02 sits, is between the leading and the lagging Block edge - which in this embodiment in all Blocks of all rows of blocks both without this being necessary would be parallel to each other - in thin lines dotted line indicates the center of the vomit on which Spikes usually positioned according to the prior art become. It can be seen that this exemplary embodiment is shown in this block essentially follows the usual; he, that means more precisely its center point, is only slightly lagging arranged opposite the center of the block.

In the fourth block from above, in which the Spike Sa01 sits, is also between the leading and the lagging Block edge in thin dash-dotted line the circumference of the block indicated in the middle, according to the state of the art usually spikes are positioned. In contrast is the Spike Sa01 significantly lagging the block circumference arranged in the middle. This is because the pitch length is in this fourth block from below is considerably longer than in first mentioned second block from below, but the dimension Ya not according to the pitch lengths according to the invention variation is varied, but is not varied at all. Rather, all Ya are the same in the entire row of blocks, that is invariant.  

Such a circumferential eccentric arrangement lowers the anchoring strength of the spike in the blocks, namely strongest in the blocks of small circumferential extent, such as here the second block from above. That's why - like here shown - conveniently an almost central arrangement there chosen, according to which the deviation essentially in the in results in longer blocks in the circumferential direction.

If there is a slight deviation, i.e. center deviation, already in Blocks of the smallest pitch length can be endured, it is particularly cheap, this - in contrast to the spike series A and D - to orientate in the same way that Xa or Ya (depending on whether the leading or lagging Pitch limits is referred to) from the pitch limit measure is. Then that is in the next larger blocks Total deviation not the sum of the pitch length increase versus the shortest pitch plus the initial deviation but from the difference in pitch length increase the shortest pitch minus the initial deviation.

There are also spikes in the second row of blocks from the left arranged; these form a spike track B. According to the already Spike Sa01 should be said in the shortest pitches Spikes only very close to the thin dash-dotted block circumferential centerline are allowed; with "very dense" means that the amount of the deviation is at most 10% the smallest pitch length.

As in spike series A, the invariant is also here Distance Yb of the spikes Sb from the lagging pitch limit measured; but here it is larger in amount. And because he is also slightly larger than half the block circumference length in is the smallest pitch, the small deviation in shortest pitch in the - cheaper - orientation that with of those in which the dimension Yb is also used Pitch limit until the middle of the spike is counted, matches.  

With this choice of sign it becomes - in itself something disadvantageous - typical of the invention suppresses that significant deviations (especially in the longest pitches) amounts. Instead, it results - for them Anchoring quality negligible - typical that in the longest pitches the deviation is reversed as in the shortest pitches.

This is exactly what can be seen in the sixth block from above (= bottom block in this image section) where the maximum Pitch length appears and the Spike Sb01 lags behind Block circumferential centerline is positioned during the spike Sb02 - as already said - opposite the center of the block ahead of his block.

The middle block track is not in this embodiment studded.

Apart from a slightly different selection of the blocks actually to be filled with a spike, i.e. one Difference in teaching B which is not essential to the invention (see see page 4, first paragraph) are the spikes in the right adjacent spike track C with spikes Sc01 and Sc02 analogous to those of spike track B positioned with the only one Difference - to avoid a sense of direction, i.e. in essential to achieve a point mirrorability - that the According to the invention, spike distances which are invariant within the track Xc from the leading pitch limit, i.e. opposite the assumed direction of rotation are to be counted downwards.

With the same deviations is also the distribution of the Spikes in the far right lane D analogous to those in the Spike track A.  

The pitch limit falls in the two right rows of blocks the leading block edges together. Where the pitch borders run through negatives, they are thinner dashed line indicated.

Fig. 3 shows a scale plan view of a developed cylinder projection of a spiked tread similar to that of Fig. 2, but with an application of the noise-reducing teaching only in the two axially outer tracks of spikes. As a result, the maximum spike pull-out strength against longitudinal forces, i.e. traction and especially braking forces, is achieved in the two inner spike tracks B and C despite the filigree shape of the blocks there. The invention preserves a reduced but significant improvement in external noise. For example, in spike track B, a spike Sb01 is arranged in the third block from below. This third pitch from below is the same as the second pitch from below of the shortest length in this single pitch sequence of the tire.

In addition, the variation in this variant is selected such that them in the shortest pitches with the orientation of the Distance from the pitch limit to the center of the spike, so that even in the outer spike tracks A and D a very high Spike pull-out strength is achieved.

Fig. 4 shows a scale plan view of a developed cylinder projection of another spiked tread with two axially outer tracks A and F, two further almost axially outer tracks B and E and two axially inner tracks C and D of spikes S, the inventive noise-reducing teaching used in all six tracks A, B, C, D, E and F by Spikes S.

The very axially outer spikes Sa and Sf and the almost axially outer spikes Sb and Se are all exactly in a straight spike track A, B, E and F, respectively, running exactly in the circumferential direction. On the other hand, some of the spikes Sc and Sd a small lateral offset V from the center line m _C or m _D indicated by a thin dash-dotted line to the center of the spike. From spike track C, spikes Sc01 and Sc03 are shifted to the left within a short pitch and spike Sc02 within a long pitch is shifted to the right; the spike Sc04 within a pitch of medium length is set exactly on the track center line m _C. From the spike track D, the spike Sd01 is shifted to the left within a short pitch and the spikes Sd02 and Sd03 are shifted to the right within a long pitch; the spike Sd04 within a pitch of medium length is set exactly on the track center line m _D.

This profile has an asymmetrical design, with the shoulder shown on the right, with its particularly wide and thus stiff blocks, to be mounted on the outside of the vehicle. It is precisely there, in spike lanes E and F, that a particularly large number of spikes are set, in the image section 6 under consideration, while in the two image spikes A and B only 4 spikes are set in the image section under consideration.

Reference list

1

Vehicle tires

2nd

Tread from

1

3rd

Cross grooves in

2nd

4th

Longitudinal grooves in

2nd

5

spike-bearing profile positive from

2nd

A left lane from Spikes Sa
B left-center lane from Spikes Sb
C right-center lane from Spikes Sc
The right lane from Spikes Sd
S spikes
Sa spikes in the left lane A
Sa01 first spike in left lane A
Sa02 second spike in left lane A etc.
Sb spikes in the left-center lane B
Sc spikes in the right-center lane C
Sd spikes in the right lane D
X Distance of a spike from the pitch limit hurrying ahead
X _c

Distance of a spike from the spike row A to the pitch limit lagging behind it
X _d

Distance of a spike from the spike row B to the pitch limit lagging behind it
Y Distance of a spike to the pitch limit lagging behind it
Y _a

Distance of a spike from the spike row A to the pitch limit lagging behind it
Y _b

Distance of a spike from the spike row B to the pitch limit lagging behind it
Z Center of block circumference

Claims (12)

1. vehicle tires ( 1 ) with spikes (S) and with transverse grooves ( 3 ) in the tread ( 2 ),

• the spikes (Sa, Sb, Sc, Sd) are arranged in a multiplicity of at least 2, preferably between 4 and 8, of spike tracks (A, B, C, D),
• - All spikes (S) are arranged within positive profiles such as blocks or ribs,
• the transverse grooves ( 3 ) are distributed unevenly over the circumference in accordance with one or more pitch sequences arranged next to one another,
• the spikes (S) are distributed unevenly over the circumference within each spike track (A, B, C, D),

characterized by

• - that within at least one (A) of the spike tracks (A, B, C, D)
  • a) either the distance (Xa) of each spike (Sa) to the leading pitch limit
  • b) or the distance (Ya) of each spike (Sa) to the lagging pitch limit

is equal to. 2. Vehicle tire according to claim 1, characterized in that it is side-bound (asymmetrical) and within the vehicle outer spike track (A)

• a) either said distance (Xa) of each spike (Sa) to the leading profile pitch limit
• b) or said distance (Ya) of each spike (Sa) to the lagging profile pitch limit

is equal to. 3. Vehicle tire according to claim 1, characterized in that within the two axially outer spike tracks (A, D)

• a) either said distance (Xa or Xd) of each spike (Sa or Sd) to the leading profile pitch limit
• b) or said distance (Ya or Yd) of each spike (Sa or Sd) to the lagging profile pitch limit

is equal to. 4. Vehicle tire according to claim 1, characterized in that within each spike track (A, B, C, D)

• a) either said distance (Xa, Xb, Xc or Xd) of each spike (Sa, Sb, Sc or Sd) to the leading profile pitch limit
• b) or said distance (Ya, Yb, Yc or Yd) of each spike (Sa, Sb, Sc or Sd) to the lagging profile pitch limit

is equal to. 5. Vehicle tire according to claim 1, characterized in that in a manner known per se at least one spike track (A, B, C or D) is not fully occupied, that is at least one of their pitches does not contain a spike. 6. Vehicle tire according to claim 1, characterized in that within different spike tracks (A, B, C, D) the Spike distances (Xa, Xb, Xc, Xd) according to the amount are different sizes.   7. Vehicle tire according to claim 1, characterized in that that within different spike tracks (A, B, C, D) the Spike distances (Xa, Xb, Xc, Xd) on different profile Pitch limits are related (i.e. the orientation of the invariant distance dimension is different). 8. Vehicle tire according to claim 7, characterized in that all within the axially outer spike tracks (A, D) Spike distances (Xa, Xd) on the leading pitch limits are related, but within the axially inner spike tracks (B, C) all spike distances (Xb, Xc) on the trailing ones Pitch limits are related or vice versa in all tracks. 9. Vehicle tire ( 1 ) according to claim 1, characterized in that some spikes (Sb, Sc) of at least one spike track (B or C) by up to +/- 15 mm (for cars) or up to +/- 30 mm (for trucks) laterally offset from the circumferential center line (m _B or m _C ) of the spike track in question (B or C). 10. Vehicle tires according to at least one of the preceding Claims, characterized in that at least some Spikes (S) in a variation of the respective block circumferential center (Z) are arranged, the amount of which is preferably is less than 8 mm. 11. Vehicle tire ( 1 ) according to at least one of the preceding claims, preferably according to claim 6, characterized in that the distance ( 1 ) from the center (M) of the spike (S) to all edges ( 5.1 ) or cuts ( 5.2 ) of the latter Spike (S) carrying profile positives ( 5 ) is at least 85% of the profile depth (t). 12. Vehicle tire ( 1 ) according to at least one of the preceding claims, characterized in that, in a manner known per se, different dimensions of the positive geometry are dimensioned from different pitch limits (ie not only from one) in the circumferential direction.