Elastic tension strap with buckle

Abstract

Tensioning strap system (1) with elastic band (6) and rows of holes (2) and a mandrel buckle (4) with an inclined tensioning mandrel (5), characterized in that the mandrel buckle has an additional mandrel (5').

Description

[0001] In recent times, special elastic tensioning straps have become increasingly popular and are available in different lengths, widths and thicknesses.

[0002] These tensioning straps are preferably made of an elastic material, preferably thermoplastic TPU. They are tightened with a pin buckle, which is inserted into the holes in a row of holes, similar to a belt.

[0003] In contrast to tensioning straps made of webbing, the surfaces of the elastic band have a high level of friction, so that the objects being strapped are held securely, even if they are flexible or tend to give way, especially since the high tensile strength of webbing is often not needed. Materials such as TPU have a high level of abrasion resistance and high elongation at break, so that the holes do not tear even when the tensioning strap is stretched significantly, especially when the elastic tensioning strap is placed around the bar of the pin buckle and a hole in the elastic tensioning strap is slipped over the angled pin. This creates good tensile strength, as part of the force from the friction of the elastic tensioning strap is absorbed by the redirection over the bar of the pin buckle. This is also the difference to conventional belts with belt buckles with a movable pin, where the entire force is directed onto the belt hole.

[0004] Such straps are manufactured using an injection molding process, for example, where the pin buckle is either injected directly into the strap or later snapped into a thickened section. This works very well for shorter lengths up to approximately 800 mm. For lengths longer than that, the injection molds become disproportionately expensive. Furthermore, long straps have the disadvantage that, with small packages, the overhang of the tensioning strap can be very long and can flap in the wind, for example, when securing packages to vehicles, or get caught in the spokes of a motorcycle or bicycle.

[0005] A tensioning belt or tensioning belt system would be desirable that has the necessary strength and tensioning ranges, is easy to handle, and avoids the disadvantages outlined as far as possible. This object is achieved by the inventive design, which proposes a tensioning belt system that is designed with a pin buckle or double pin buckle with an additional pin. This allows the pin buckle to be variably attached to the tensioning belt from both sides, allowing two shorter belt projections to be created instead of one long one.

[0006] Preferably, the tensioning strap profile is not injection-molded, but extruded and subsequently perforated, which makes it possible to produce even large lengths. Furthermore, the elastic band can also be sold by the meter, allowing the user to individually adjust the length to their tensioning situation and even optimally configure it without having to discard cut ends, thus reducing the CO2 footprint of the tensioning strap system.

[0007] Tension straps of this type are usually equipped with additional square rings to secure the protruding ends of the elastic tensioning strap. Once the length of the protruding ends has been adjusted to the individual tensioning situation, it is desirable for the double pin buckle to be firmly attached on one side. For this purpose, a bracket molded onto one side of the double pin buckle is recommended, which makes it more difficult for the strap to come loose from the pin on that side when the strap is not tensioned. Furthermore, instead of a pin buckle, it is also possible to attach a click hook or tube hook to a tube system, such as the strut of a bicycle rack. The click hook, in turn, has an additional pin to flexibly attach the end of the elastic tensioning strap to a tube, whereby the projection on the tensioning pin can be flexibly adjusted.

[0008] The invention is described in more detail below with reference to drawings, in which: Fig. 1 a plan view of a pin buckle (4) with an additional pin (5') and an associated bracket (8). Fig. 2 a perspective view of a pin buckle (4) with an additional pin (5') and an associated bracket (8). Fig. 3 A frontal view of a double pin buckle with the two pins (5 and 5'). Fig. 4 A top view of a tensioning belt system (1) with holes (2) arranged in a row. Fig. 5 a perspective view of a tensioning belt system (1) with double pin buckle (4) in the closed state. Fig. 6 a perspective view like Fig. 5 in one cut.

[0009] In the Fig. 1 to Fig. Figure 3 shows a top view of a double-prong buckle (4) having bars (3), each with a diagonally projecting prong (5, 5') arranged on the left bar (3) and the middle bar. One end of the tensioning strap can be guided from below through the opening (12) and folded to the left, whereby the left-facing prong (5) engages in a hole (2) in the tensioning strap and secures the tensioned strap. The other end of the tensioning strap is similarly guided from below through the opening (12) and folded to the right, where it is connected and tensioned by means of a hole and the protruding prong (5') to the right. The ends (9) of the tensioning strap can be secured against dangling loosely by means of rectangular rings (10) on the tensioning strap, as shown in Fig. 4. The tensioning strap as shown in Fig. 4 is equipped with an inventive double pin buckle at its left end and the right end (9) can either be attached to the pin buckle already attached to the left end and thus close the tensioning system or the right end can be provided with another double pin buckle, with which the tensioning system can be extended accordingly.

[0010] Fig. Figure 5 shows a perspective view of a closed tensioning strap (6) in which the ends (9) of the tensioning belt can be guided through the double-pin buckle as described, and the strap can be secured in place. The protruding ends (9) of the strap can be secured against dangling by means of a rectangular ring (10).

[0011] The Fig.Figure 6 shows a section through a tensioning strap equipped with a double-prong buckle in the closed, tensioned state, showing the fixation of the corresponding protruding prong on each side in a hole of the row of holes. A rectangular retaining ring 10 fixes the protruding end 9 of the strap 6 on one or both ends.

[0012] Having described preferred embodiments of the invention with reference to the accompanying drawings, it is to be understood that the invention is not limited to these precise embodiments and that various changes and modifications may be made therein by one skilled in the art without departing from the scope of the invention as defined in the appended claims.

Claims

[1] Tension belt system (1) with elastic band (6) and rows of holes (2) and a pin buckle (4) with an inclined tension pin (5), characterized by that the pin buckle has an additional pin (5'). [2] Elastic tensioning belt system according to claim 1 with rows of holes and a pin buckle, characterized by that the pin buckle has an additional pin (5') and an additional one-sided shaped bracket (8). [3] Elastic tensioning belt system with rows of holes according to claim 1 characterized by that the elastic band (6) is extruded and subsequently perforated. [4] Elastic tensioning belt system with rows of holes according to claim 1 characterized by that a pipe hook (11) with a mandrel (5) is arranged on at least one side of the band or 2 pipe hooks, one on each side of the band, so that the protruding ends can be changed in length on both sides. [5] Elastic tensioning belt system with rows of holes according to claim 1 characterized by that the tape is sold by the meter. [6] Elastic tensioning belt system with rows of holes according to claim 1 characterized by that the band is preferably made of thermoplastic TPU. [7] Elastic tensioning belt system with rows of holes according to claim 1 characterized by that the pin buckle is made of plastic. [8] Elastic tensioning belt system with rows of holes according to claim 1 characterized by that the additional mandrel (5') is designed obliquely and is arranged in its course opposite to the first mandrel (5).

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