DE1903915A1 - Element for insertion in vehicle tires with rubber tread (spike) - Google Patents

Description

with rubber tread (spike)

The present invention relates to an anti-skid element in the form of a pin for insertion into vehicle tires Rubber tread, hereinafter referred to as Snike. You are the one The object of the invention is to design a spike in such a way that the service life of both the spike and the relevant Tire can be extended by the seat of the spike in the tire, especially during the running-in period, i.e. the initial period the service life is improved.

Spikes are used in bores in the outsole of the tire, which have a smaller diameter than the spikes, so that the holes widened when the spikes are inserted must be and then lay under tension against the bolt on all sides. Most known so far have a circumferential flange or head on the inner sade « The hole in the shaft of the spike for inserting the goes through the entire shaft, so that at the hole in the tire and inserting the stud with subsequent * by placing the borehole wall against the Splfce on all sides incomplete covering of the head and shaft of the

9Q9883 / Q348

ORIGINAL INSPECTED

Spikes through; Tire material st ^ xz finds.

When entering ± ev Heifens, for example, over - i> km> / ii-: i the shaft et moves via ε in the outsole; many of the ongoing contacts or StJÖ ^ e of the spike tip with the road. With this initiation process, the seat of the spike in the outer sole of the heat becomes more important. π or more solidified, the material of the outsole surrounds the snike more firmly and firmly.

It has, however, herE-ussrefcellr, that- der rica ~ i-: e endry'ilti ^ e Seat of the spike. in the outsole impaired v / ground. can, if there is a tendency for the spike to rotate in the bore, if the S ^ ike in the receiving bore during the running-in period can rotate around its axis. For example the Suike can be swiveled in the 3-hole and finally not with one; exactly correct angle of inclination against fix it in the hole above the running surface,

! Furthermore, dust or rock grains will inevitably penetrate into the receiving bore, whereby when the spike rotates in the bore, abrasion occurs on the bore or on the spike, whereby the spike can become loose so that the spike now rotates even more strongly in the bore becomes, more rock = granules can penetrate into the hole _t , the Versehleiil ^ lsa * is reinforced until finally the spike is lost,;, - _; .-

In order to anchor the spike firmly and securely in its Aufnähmebahrung one has already tried to add additional flanges on the Spite | b

BATH

1,391

anaubrin-.roii. Thereby η at e .. "nich .je'.iJch: iersu.s; -e ^ divides, iaß that the outsole de ι: Reifen.- ^ u / 'bilder.do Iiaveri ?.] the necessary stretching not au; : hyIten can, but Ermii-junreer-;? clieinun, _- e: i "ei,";;, so that the S ^- : i '· »finally loosens or r-ir is lost, ocv; ohl he nehr al .: a :: Λ ^ λ. \: ο has a flange.

Present Invention IcYt do .; Proole:. "!, Drenunjen o :: w. Schwenkunren oaer ßev / ecu'i ^ en der Spike .; in my nUi'mhmeb ^ arur: j during the running-in period -l by reducing: · these evidences causing forces . By reducing this - ¹ Uf aen spike during ί · τ inlet peri j ie acting.),: Rr 7/1 drenen or zn pivoting- seeking il forces -.vi-d achieved, u.a3 :: ica the spike during the Enema pearl ie fe:. 'T and z'ichti - Li. Ier intake bohr ui.>I'e:.:T.-etn;,. J du.i er.-Icner unj. Fes-; in der Bohriuij ^ honst i.; t, so that.3 the ::: _ o: i: aule Lc-ben ^ d'-uer der SrirCi is reached.

These advantages "" werieu cemä .: the egg finaur., · By a special formr; eoun.g of the outer snies de ^ "o"i:; - "ifte. · C-rrei; ..-, jv; ie in some cases :: ■ 'dui'c-- be.iOrider'e? orr.U; c der StifT ..- pir2e as des Spikekörreri ?, so there .:? ui "gruna iio. ^ e: Foira-e 'cu ^ iir oeim. Running of the studded tire - only a minimal amount of turning or heavy lifting on the studs.

Further features and details of the invention emerge from the following description of exemplary embodiments with reference to the drawing

909883/03 4 8

8AD

j? I "-. 1 shows a longitudinal section through a typical spike construction according to the invention,

Fig. 2 shows a further Srdke construction according to the invention in side view, partially cut and

Fi ^. 3 shows the conditions when unrolling a device according to the invention Snike's equipped beef from a Roadway.

The spike body 10 has a tubular shaft 12 and one radial meat 14 at one end. In the continuous The receiving bore 16 is the spike pin 16, for example from cemented tungsten carbide used. The pen is in matching Way fastened in the bore, for example by conical design and Einoreesen in the bore, with the lower End of the pin in the area at or just above the flange ender and the upper end a certain distance from the upper end Er.de the hole protrudes.

The special design of the spike according to the invention or the characteristic feature according to the invention is the curved image of the protruding end 20 of the spike pin 18. This curved ötifren-ie can be spherical or similar, provided that only its middle, uppermost area. 22 further until the remaining areas of the pin end protrude from the receiving bore. The basic training of the end of the foundation is easy? producible and therefore particularly advantageous.

The pin end 2a of the spike 26 in the shaft 24 of FIG

909883 / 03A8

BAD ORjGiNAL

- 5 conical or conical.

The end face j> 0 of the shaft 20 or 24 can also be slightly conical or conical, so that the end face 30 of the shaft itself cannot act on the roadway.

During operation, of course, the arched end of the pin becomes 22/23 impaired or ground off, so that there is then no longer the same degree of rotation or pivoting of the Can counteract spikes. But due to this abrasion the anti-rotation effect is gradually lost, the spike solidifies more and more in its seat, so that then special protection against rotation or movement and pivoting of the spike in the mounting hole is no longer required are.

Due to the conical design of the outer end face 30 of the Shaft 12 is achieved that the shaft itself does not come into contact .mit the road and there ^ by a torque can exercise, even if a certain pivoting movement on the due to the action between the spike tip 22 and the roadway Spike is exercised.

The tapered design of the front end 30 also prevents impairment or flattening if the studded tires on road surfaces with sand or This ceiling or the like running..

3 shows schematically the processes when a spiked tire is running on the roadway (roadway 40, tire 42, spike 44).

909883/0348

BATH

The Spiicestif t -t-6 advised a rewölbtec end 4c. The axis of rotation, un welcue -ler Srdke as a whole in his Aufnahnebohrun ^ would be threatened is denoted by 50. We?: E: i the domed The point of contact between the tip and the tip of the spike falls Lane 40 almost αϊ it; the piercing point of the Ac: * .-; e 50 sueramen. There is only a small grain of enarin 5, one Rotation of the stud 44 in the tire 42 could result.

With conventional soikes mix; fls-.cnen or flat pin ^{ends would be dex 1} Homenjarm. during running-in the same as that of the spike pin, which would result in a correspondingly larger torque.

According to a further feature of the invention, the spikes have on their flanges or heads 14 radial lugs or wings 54 which are also intended to counteract a tendency to rotate the spike in the receiving bore . These radial lugs 54 are particularly effective because their effectiveness is not reduced, as in the case of known spikes, by the initial rotation during the running-in period.

It is also noted that the spikes according to the invention in the. Manufacture not more your than conventional spikes, but that they have a significantly longer lifespan and usefulness It is also of particular advantage that the basic concept of the spike construction according to the invention can be largely modified and is thus adapted to different applications can be.

909 883/0348

BATH ORIGINAL

According to .rich, the invention is borrowed from νίβε as fol ~ t summarize. It relates to a dnike with a h ^ lreilaiisch at the inner end and an aur an on naiimeb ear and 5 outrunning ike: itift at the outer end, where «-emä; i the invention the end -.:er sfikestiftee arched odei * conical i ':, 00 do; s when running in the corresponding soik tire :. uer Kon ⁴ ; ?? kc between »Stift u-xd Straße near the Stiftrchbe take place *; ·» ro l & L · we ^ en of the small moment arm: - only a .very small, ien i.-tiike to twist its eight? e .rächendes DrehmöxeM-; au: trino.

909883 / 03A8

SAD OBLIGATORY

Claims (3)

130391 ι; Claims Anti-skid element for use in vehicle tires with
Rubber tread or the like, preferably with a spike shaft with a spike flange at the lower end and a spike pin inserted into a receiving bore of the same, with its upper end protruding beyond the receiving bore, characterized in that the end (20) of the spike pin (18)
is curved (22) or conical (28) so that
during the running-in period the contact between the pen tip and the road takes place near the spike axis (50). 2. Anti-skid element according to claim 1, characterized in that the spike tip is spherical. 3. Anti-skid element according to claim 1, characterized in that that the pen tip is conical. 4-. Anti-skid element according to claims 1 to 3 »characterized in that that radial attachments or wings (54-) are provided on the flange or head (14-) of the spike. 909883/0348