DE2057921A1 - Link for tire anti-skid chains - Google Patents

Description

Iron and wire mill
Erlau Aktiengesellschaft

7080, Aal en

Allow 16. a 31 965 - Br

Link for tire anti-skid chains

The invention relates to a connecting link for tire anti-skid chains with a web-shaped Link body which, between two longitudinal webs, has a receiving opening for chain links to be connected and one in a longitudinal web between two legs which form these and run towards one another Has an insertion opening for inserting these chain links, with a locking piece between the legs can be used, which engages with form-fitting members in mating members at the ends of the legs.

In known connecting links of this type, the mating links are at the leg ends by protruding Approaches formed, which are due to the not arbitrarily reduced width of the insertion opening results in a relatively large overall length of the chain link. In addition, the approaches to the known

209824/0261

BATH ORIGINAL

Links are easily damaged, for example deformed, so that then the entire connecting link is unusable is. Another disadvantage is that the known connecting members are relatively are complicated to assemble.

The invention is based on the object of providing a connecting member of the type described at the outset train that with a simple structure and easy assembly a relatively short training of the link can be achieved.

In the case of a connecting member of the type described at the outset, this is thereby achieved according to the invention achieved that the mating members are formed at the leg ends by recesses into which the locking piece engages with matching form-fitting approaches.

According to a further feature of the invention, the recesses are formed by grooves, which are preferably run at right angles to the longitudinal center plane of the link, so that the striker in a simple catfish can be used from the side.

To achieve a particularly secure hold of the striker, the recesses are preferably dovetail-shaped, undercut.

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In order to achieve the highest possible strength, the recesses are approximately in the middle of the height the leg provided.

To further facilitate insertion and removal of the striker, the preferably obtuse-angled roof-shaped bottom surfaces of the grooves run parallel to the end face of the respective associated leg.

If the lugs of the striker are the same length as the grooves, then when the connecting link is closed do not collect dirt in the grooves.

The closing piece expediently has, preferably on both sides, adjacent to the projections Contact surfaces for the plant on the end surfaces of the legs, so that when the striker is inserted relatively smooth .. outer surfaces of the connecting piece result.

A particularly advantageous development of the subject matter of the invention is that the Closing piece from the section lying in the insertion opening into one, preferably narrower, located in the receiving opening subdivision section for the receiving opening

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passes over, so that the receiving opening is divided into two individual openings after the insertion of the striker.

There is also the possibility that the dividing section on the inner surface

"of the length opposite the insertion opening

web rests, so that the two longitudinal webs are worn against each other.

To ensure particularly good mobility of the chain links engaging in the connecting link 'To achieve, the subdivision section has concavely rounded, in the receiving opening lying surfaces.

The outer surfaces of the striker are advantageously aligned with the adjacent, associated surfaces of the limb, preferably that of the introducer

Opposite opening, in particular double trapezoidal Link web protruding laterally over these surfaces, so that the striker and the interlocking form-locking members are well protected.

According to a further proposal according to the invention, the striker with a bolt, in particular

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secured with a coiled spring pin, which is preferably parallel to the link center plane in a bore in the longitudinal web opposite the insertion opening and a bore of the striker is pressed in so that the striker is releasably secured.

The invention is explained in more detail below with further details; the painting give an embodiment with the parts borrowed for the invention approximately to scale again. These parts are, if they cannot be taken directly from the drawings, explained with reference to the drawings.

They are shown in:

1 shows a connecting member according to the invention in view;

Fig. 2 shows the connecting link according to * Fig. 1 in Bottom view;

3 shows a section along the line III - III in FIG. 1; ,

FIG. H shows a section along the line IV - IV in FIG. 1, but without the closing piece; FIG.

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Pig. 5 the striker according to FIG. 1 in View from the right;

Fig. Β the striker according to FIG. 1 in f view from below.

As FIGS. 1 to 6 show, an inventive Link on a link body 1, which is essentially by two longitudinal webs 2, 3 and two end transverse webs 4 connecting these are formed is, wherein the one longitudinal web 3 is formed by two legs 5 extending towards one another, which end at a distance from each other that they form an insertion opening between them through which Chain links to be connected into the receiving opening 6 located between the longitudinal webs 3, 2 can be introduced. In the operating state, the insertion opening can be closed by a closing piece 7 be.

On the end faces facing one another, the legs 5 each have a dovetail shape continuous groove 8, the grooves 8 running at right angles to the central plane of the link body 1 « The section 9 of the lying in the insertion opening

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Closing piece 7 has on two sides facing away from each other dovetail-shaped projections 10 which fit into the _SehwalbenschHanznuten 8, such that the closing piece 7 can be inserted from the side of the link body 1; the length of the dovetail 10 corresponds to the length of the grooves 8, i.e. the thickness of the legs 5, so that the side surfaces 11, 12 of the Sdiießstückes 7 and the link body 1 are aligned with each other except for the longitudinal web 2 larger in the direction of the thickness of the Güiedkörpers 1. On both sides of each dovetail 10, the section 9 of the closing piece 7 has contact surfaces 13, 14 for contact with the end surfaces of the legs 5. The bottom surface 15 of each groove 8 and extending parallel thereto end face 16 of the associated leg 5 are formed in the section according to FIG. 3 by two roof-like manner at an obtuse angle to one another lying individual surfaces, while the outer longitudinal surfaces 17 and the bearing surfaces 13, lh in the Weser, UEN loan are , so that the closing piece 7 can be inserted very easily as a result of the funnel shape resulting from it. The closing piece and the longitudinal web 3 formed by the legs 5 form a common tire contact surface 18, of the connecting member, which is opposite the floor running surface 19 formed by the longitudinal web 2.

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The closing piece 7 also has a subdivision section 20 located in the receiving opening 6 on, through which the receiving opening 6 is divided into two individual openings 21, the the corresponding side boundary surfaces 22 of the individual openings 21 forming side surfaces of the Subdivision section 20 is concave / rounded off in the area of the transition into section 9, such that the dividing section 20 is narrower than the section 19. The end face 23 of the Subdivision section 20 is supported on the inner surface 24 of the longitudinal web 2, so that the the two webs 2, 3 are supported against one another by the striker 7.

In the longitudinal center plane of the link body 1 is at right angles to its longitudinal extent in the longitudinal web 2 a bore 25 is provided, which has a bore 26 of substantially the same diameter in the striker 7 is assigned, the two bores 25, 26 with one another when the striker 7 is inserted align and go through from the floor tread 19 to the tire contact surface 18. In the holes 25, 26 a spiral dowel pin 27 is pressed in, through which the striker 7 is secured. The pin 27 can easily be pressed out, so that the connecting link 1 then passes through Removal of the striker opened again

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can be. The bore 26 in the striker 7 points to the end face 23 of the dividing section 20 a conical widening 28, so that when the pin 27 is pressed in from the longitudinal web 2 ago the striker 7 is aligned by itself with respect to the bolt.

The longitudinal web 2 projects with its side surfaces laterally over the side surfaces 12 of the transverse webs k and the longitudinal web 3 and thus over the side surfaces 11 of the closing piece 7, so that it is well protected.

The transitions 29 from the tire contact surface 18 to the transverse webs h are strongly rounded in the shape of a quarter circle with a radius that is only slightly smaller than the length of the legs 5 to the bottom surface of the respective associated dovetail groove. The corresponding transitions 30 of the floor running surface 19 are rounded off with a radius that is smaller by more than half.

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Claims (1)

A 31 965 - Br Expectations 1.) Connecting link for tire anti-skid chains, with a web-like link body between two longitudinal webs a receiving opening for chain links to be connected and in a longitudinal web an insertion opening between two legs that form and run towards one another for introducing these chain links, with a locking piece between the legs can be used, which engages with Pormsdiuss members in mating members at the ends of the legs, characterized in that the mating members at the leg ends by recesses (8) are formed, in which the striker (7) engages with fitting Pormschlussansätze (10). 2.) Connecting link according to claim 1, characterized in that the recesses are formed by grooves (8) are formed, which are preferably rectangular 209824/0261 run to the median longitudinal plane of the limb. 3.) Link according to claim 1 or 2, characterized in that the recesses (8), preferably dovetail-shaped, are undercut. i |.) Link according to one of the preceding claims, characterized in that the Recesses (8) are provided approximately in the middle of the height of the legs (5). 5.) Link according to one of claims 2 to 4, characterized in that the, preferably obtuse-angled roof-shaped bottom surfaces (15) of the grooves (8) parallel to the end face (16) of the respective leg (5). 6.) Link according to one of claims 2 to 5, characterized in that the Approaches (10) of the striker (7) have the same length as the grooves (8). 7.) Link according to one of the preceding claims, characterized in that the Striker (7), preferably on both sides 209824/0261 adjacent to the projections (10) contact surfaces (13, 14) for contact with the end surfaces (ΐδ) the leg (5) has., 8.) Link according to one of the preceding Claims, characterized in that the ψ Striker (7) from the one in the insertion opening lying section (9) in a, preferably narrower, lying in the receiving opening (6) Subdivision section (20) merges for the receiving opening. 9.) Link according to claim 8, characterized in that the sub-division a section (20) on the inner surface (21) of the longitudinal web (2) opposite the insertion opening is present. . 10.) Link according to claim 8 or 9, characterized in that the dividing section (20) has concavely rounded surfaces (22) located in the receiving opening (6). 11.) Link to one of the preceding claims, characterized in that the outer surfaces of the closing 209824/0261 Piece (7) are aligned with the adjacent associated surfaces of the link (1), preferably that of the insertion opening opposite, in particular double trapezoidal Link web (2) protrudes laterally over these surfaces (11,12). 12.) Link according to one of the preceding claims, characterized in that the Striker (7) secured with a bolt, in particular a spiral dowel pin (27) is, which is preferably parallel to the limb center plane in a bore (25) of the insertion opening opposite link web (2) and a bore (26) of the striker (7) is pressed. 209824/026 Blank page