DD270633A3 - RUNNING LACE PROFILE FOR A STRAP OF ELASTOMER MATERIAL WITH MULTILING PROFILES - Google Patents

Abstract

The invention relates to a Laufflaechenprofil for a track band of a track band vehicle, with the application areas in agriculture, melioration and related areas as well as an application on different, d. H. natural and paved roads. Economical driving characteristics are achieved by the inclined arrangement of two outer profile lugs to a center profile, which determines the position from the extended center lines of two opposite each other outside profile lugs a parallelogram, which includes a center cleat and when placed on the road through the line of action a continuous engagement and good Eingriffsueberdeckungsgrad the profile is guaranteed. It results in reduced vibrational excitations, improved turning behavior and a favorable Aufstandsflaechenverhaeltnis. Fig. 1

Description

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Field of application of the invention

The invention relates to a tread pattern for a track band made of elastomeric material of vehicles used in agriculture, in land improvement and in related fields, the vehicles being used on different lanes.

Characteristic of the known state of the art Tread patterns for track belts made of elastomeric material are known. It was according to their purpose, for

the individual track bands designed different profiles.

Thus, a solution according to patent DE-OS 3242408 shows a track band for a motor vehicle, where the profile contact surface on two Part profile strands is housed, both partial profile strands or partial profiles in the direction of travel are adjustable relative to each other

and can be set to a complementary gap. This is to offset the profiles to each other use on a level

Soil, in adjacent congruent arrangement a use in the field to be met. This profile defined for a tracked vehicle has drawbacks resulting from the ratio lug gap to lug width 1: 1, and

justified by a straight arrangement of the profiles. So a soft shrinkage on linearly ordered profiles is not possible at all, the profile tends to vibrational excitations.

Such a profile can not meet the requirements of a track band in terms of grip, because Profilanordriung and Profile distance also does not ensure a good grip. A solution for a track band is still apparent from a published brochure material. This solution

shows three profile strands on which the profiles are set at a relatively large distance opposite each other in the form of a distorted Z over the entire width of Gleisbandec. The individual studs or profile shape is executed gracefully in the manner of a feather key with respect to their length, width and height. Both outer profiles on the track band are rectified by their arrangement in one direction.

This solution offers advantages in terms of grip in natural terrain. However, such a designed track band shows

especially disadvantages on fixed roads. As a result of large tunnel distances, this profile is unsuitable on solid roads. As a result of this arrangement, it adversely affects the strength and durability of the studs, and it also reduces them

Vibrations not, so that an insufficient smoothness is given on paved or solid lanes. According to DE-OS 2856204 ^! St also a multi-row track for use on a vehicle crawler known, from

elastomeric material beats where but to reinforce the bands and treads so-called support members κ .ι metal have been incorporated.

The disadvantage is that with some worn-out tread lugs, the metallic support members on paved roads damage the road surface, wear themselves out and therefore do not guarantee running smoothness or reduce vibration excitations

 A universal use on different lanes is thus not satisfactory.

Object of the invention The aim of the invention is to develop a track band, which can be used advantageously on natural and paved roads. Explanation of the essence of the invention

The invention has for its object to develop a track band, which has a high Hai.barkeit at the same time good grip and ensures a lower vibration excitation of the track band vehicle on the tread pattern safe.

According to the invention, this object is achieved in that a defined symmetrical arrangement of the treads pursued each other, wherein the two outer treads are inclined and the center lugs are arranged perpendicular to the direction of movement and the rolling of the track on the roadway, a continuous engagement of the treads takes place. The positional arrangement of the tread lugs takes place in such a way that the pointing in the direction of α continuously elongated center lines of two adjacent outer profile lugs with the respective outer profile lugs intersect the axis of symmetry of the track band and forms a parallelogram with the intersections of the centerlines of the outer tread · a parallelogram and one each Including center tunnel.

The angle of inclination α of the outer profile lugs to the axis of symmetry and center lugs should be in the range of 8 ° to 1 2 " , the distance a of the center lugs of 92 to 100 mm ensures a favorable footprint for the Nacheinandereriffriff the lugs with the roadway.The clearance between the center tunnel and The outer profile lugs should be opened at an angle of 70 ° in the direction of the footprint of the tread lugs, thus ensuring good conditions for relatively low wear and durability of the tread lugs.Outside, the outer profile lugs are 45 ° beveled, which increases the strength To the profile gaps in the direction of travel, the tread lugs are inclined for further strength increase and grip 20 °, the ratio lug gap to lug width is 1.1-1.3 n thus a truncated pyramidal shape. In the lower band of Gieisbandes sinkings are incorporated in each second profile gap, which serve to increase the usability of the track band by attaching the inner guide lugs. A reduced vibration excitation is met by the mitberichtreported, staggered inclination of the outer profile lugs, by the defined relatively small distance between the profiles, by the involved footprint and a Abrollvortang on the outer profiles, which is based on a favorable engagement overlap degree.

embodiment The invention will be explained in more detail below using an exemplary embodiment. Show it:

1: the arrangement of the tread lugs on the track band Fig. 2: the section A-A through the Fig. 1 Fig.3: the section B-B through the Fig. 1st

Fig. 1 shows the symmetrical arrangement of the tread lugs on the track band in the direction of movement. The Ai'ßenprofilstollon 3,4 are set in the direction of movement at an inclination angle α in the preferred range 10 °, the External profile lugs 3.4 are arranged to one another so that the pointing in the direction of movement extended center lines 1,2

two adjacent and opposite outer profile tunnel 3.4 with the intersections S 'and the intersection points S of

Symmetry axis 6 form a parallelogram and the center tunnel 5 includes. Several embedded in the subband Countersinks 7 serve the better attachment of guide elements on the inner sides of the track band. FIG. 2 shows the section A-A through FIG. 1. From the Pro'illücke to the adjacent profiles, the transitions for reasons of high stress at an angle of 20 °

ausgefüi irt, se that for a given profile height in the profile bottom a good resistance against the acting wear forces is given.

3 shows the section B-B through FIG. 1. The inclination between the outer profile lugs and the center lug is due to the durability of the lugs and occurring Tensions in the track band at an angle of 70 °. The outer edges are achievable with respect to higher strength for Sub-band out at the outer profile tunnel at an angle 45 "formed.

Claims (7)

1. Tread pattern for a track band made of elastomeric material with multi-row profile strands, characterized in that the pointing in the direction of movement at an angle α continuously elongated center lines (1,2) of two adjacent outer profile lugs (3) with the respective opposite tread lugs of two adjacent outer profile lugs (4) Parallelogram form, which includes a direction perpendicular to this direction center lug (5), wherein the parallelogram is formed with symmetrical arrangement of the outer profile lugs (3,4) from the direct intersections S 'of the center lines (1,2) and the respective center lines (1 , 2) intersecting the axis of symmetry (6) in the gap at the intersection S of two adjacent central tunnels and defining the ratio of lug width to lug gap 1.1-1.3. 2. tread profile according to claim 1, characterized in that the inclination angle α = 8-12 ° to the axis of symmetry (6) is carried out on both sides equal. 3. tread pattern according to claim 1 and 2, characterized in that the center distance of two adjacent central lugs (5) in the preferred range is 92-100mm. 4. tread profile according to claim 1 to 3, characterized in that the outer edges of the outer profile lugs (3,4) are at an angle 45 °. 5. tread pattern according to claim 1 to 4, characterized in that the Freiranm between the center tunnel and outer profile lugs (3,4) form an angle of 70 ° in the direction of the footprint. 6. tread profile according to claim 1 to 5, characterized in that the lying in the direction of movement of the track band side edges of the outer profile lugs (3,4) and center lugs (5) occupy an angle on the track band perpendicular to an angle of 20 °. 7. tread profile according to claim 1 to 6, characterized in that a plurality of counterbores (7) are arranged in gap in the lower band of the track band at twice the distance between two center lugs (5).