DE1276309B - Metal sling in a flat shape - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

B 66 c

German class: 35 b-6/10

Number: 1276 309

File number: P 12 76 309.6-22 (C 32860)

Filing date: May 11, 1964

Opening day: August 29, 1968

The invention relates to a metal sling in a flat shape, which is formed from a single cable is, which by bending at the end of the sling over a grooved, the passage a fastening member serving tube is guided back and forth in several strands, wherein the The number of strands determines the width of the web and the individual strands of the cable are connected by connecting links are held together.

A looping tape has already become known in which a cable has a plurality is guided by grooved metal bushings, which in turn have several rings is connected to the actual fastening device. This arrangement is relatively complicated, since not only a number of separately arranged sockets must be provided, but also a corresponding number of rings.

It has also become known a rope tape which is formed from a braid, in which individual Cable pieces are connected to one another and via a guide body provided with grooves be guided. The spacing is achieved by rubber rollers that are used during vulcanization of the tape enter into an intimate connection with a rubber compound.

In a still known socket and guide body for lifting straps od. Like. Are on the Outer surface and the entire width provided individual grooves in which a wire rope comes to rest. To hold the entire rope band together, one end of the wire rope is behind the one on one side Guide body braided or spliced into the individual tracks. Such an arrangement leaves but cannot be carried out with metal slings with strong cables.

Finally, a wire rope band has become known, which consists of individual wire ropes, both ends of which form loops using a thimble and a rope clamp each a cross bolt of a steel bracket are lined up next to each other. There are several individual links here intended to combine two parts of the cable. Each individual link must be held on separately will.

The invention is based on a lifting strap formed from a single cable, the Cable is guided back and forth in several strands via a pipe serving as a fastening member. Of the The invention has for its object to provide a metal sling of the type mentioned above, which has a large coefficient of safety to keep metal sling in flat shape

Applicant:

Calories d'Alsace et de Lorraine, SA,
Rosheim, Bas-Rhin (France)

Representative:

Dipl.-Phys. E. Zipse, patent attorney,
ίο 7570 Baden-Baden, Lessingstr. 12th

Named as inventor:

Marcel Gillet, Molsheim, Bas-Rhin (France)

Claimed priority:

France of May 13, 1963 (7755 Bas-Rhin) - -

certain possibilities, such as breakage of a wire of the cable, wear, oxidation or deformation consider. At least eight times the safety for lifting with a single rope or 4.5-fold and 2.5-fold safety for lifting on two or four strands, because It is well known that with multiple strands, the force is not evenly distributed over the strands.

It must also be provided an overload in the event of a twisting force, which up to Can reach 100% for an angle of 120 °, with too sharp bends the resistance of the metal drop considerably. There is also the metal sling to facilitate his Use a certain flexibility must be given and since he is under voltage must not damage the part to be lifted, all these demands are obviously even more difficult To cope with the increasingly frequent cases of very large loads, especially when it is difficult or at all it is impossible to use several metal slings.

The invention therefore aims to facilitate the solution of this problem by means of a metal sling, the strength of which enables it to be used for very heavy loads, with the desirable resilience is maintained and the risk of damaging these loads is avoided.

To solve the problem, a metal sling in the flat shape of the one mentioned at the beginning is therefore used Type proposed, which is characterized according to the invention in that the connecting links

809 598/99

are designed as a rigid, grooved, two-part bracket that the strands of the Enclose the cables with their grooves and are held together by rivets, and that the entire Meten Example has a diameter of 4 mm and (Fig. 1) about the metal sling to be given Length is guided back and forth by bends, so that it successively over the arranged at the end

tallstropp completely embedded in a rubbery mass 5 tubes 3 and 3 'for the passage of the fastening is. limb runs. In the example of FIG. 3 is running

It is already known to use a similarly designed cable 2 twelve times over these pipes.
Embed the rope tape completely in rubber. However, you get a flat track 1 or 1 'corresponding to

there is the previously known rope band, as shown above, of the width, the twelve strands, i. H. the laid out of a mesh, in which individual kaio twelve juxtaposed, through the twelve Biebel pieces are connected to one another and via a line of one and the same cable 2 formed Trümit Guide body provided with grooves are guided through the grooves of the tubes 3, 3 'and through booths. The known rope tape has to be held in place due to its gel 5.6, which at Structure does not have the extraordinarily high strength of the example shown by two identical parts formed by the metal sling according to the invention 15, which the strands of the cable 2 is applied. enclose (Figs. 2 and 3) and close with rivets 4

In a further embodiment of the invention, the metal sling can also be designed so that the with combine several strips with the grooved stirrup.

This flat metal sling has the desired strength, which is achieved by the corresponding Diameter of the single cable is achieved, which is wrapped over the fastening system to are held together. The brackets 5, 6 also facilitate the formation of the loops at the ends of the metal sling (Fig. 4).

Finally, each lane 1, I 'is rubbery Mass 7 embedded, the type of which is adapted to the intended use.

In addition to the advantages already apparent from the description, it should be noted that the

the web has a considerably longer lifespan than a suitable number of back and 25 metal slips

Previous strands of 10, 12, 16, 20 or more have an ordinary strop and that in particular

to form, being held by brackets. They worked the sensitive ones on the surface

ser Metallstropp has the desired flexible or painted parts to be handled with the

due to the composition of the cable, wel- tracks 1, Γ of the metal sling held very firmly

ches makes him more or less stiff, and thanks to be 30.

the rubber cover, which ensures that the handled parts do not come into contact with the metal parts come so that they do not run the risk of being more or less damaged, the Cable itself is also protected against oxidation that is always possible.

The invention is explained by way of example with reference to the drawing.

F i g. Figure 1 is a profile view of a single bend of the single cable forming a web;

F i g. Figure 2 shows a plan view of a metal sliver made of two sheets;

Fig.3 shows a section along the line ΙΠ-ΙΙΙ in F i g. 2, which shows in natural size the formation of a metal sliver with two tracks with twelve reciprocating strands of the steel cable, and

F i g. 4 shows an enlarged longitudinal section through the end of the metal sling.

As in Fig. 2 is shown, the metal sling is formed by two tracks 1 and 1 ', which through Brackets 5 and 6 are firmly connected and the ends of a loop on tubes 3,3 'for the Form passage of a fastening member.

Claims (2)

Patent claims: 1. Metal sling in a flat shape, which is formed from a single cable, which is bent by bending at the end of the sling over a grooved tube serving for the passage of a fastening member in several strands is guided back and forth, the number of strands determining the width of the web and wherein the individual strands of the cable are held together by connecting links, thereby characterized in that the connecting links as rigid, grooved, made of two parts existing brackets (5,6) are formed which enclose the strands of the cable (2) with their grooves and are held together by rivets (4), and that the entire metal sling is complete is embedded in a rubber-like mass (7). 2. metal sling according to claim 1, characterized in that the bracket (5,6) has several tracks (1,1 ') summarize. Considered publications:
German patents No. 750 507, 854 832,
Each of the two tracks 1 and 1 'is made from a 55 1019 063;
single cable 2, which is shown in U.S. Patent No. 2,598,921. 1 sheet of drawings 809 S9S / 99 8.68 © Bundesdruckerei Berlin