DE1303748B - - Google Patents

Description

Rich I, the "turns lie next to each other, while on the outside they have the distance α , which is slightly larger from the distance in the straightened.i state of the spring. The state of the still straightened, uncompressed springs is shown in FIG. 2 This figure shows the state after being slid on the straight elongated wire rope. In this state, the winding distances are d or V somewhat different from the existing after installation Win ·

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MTFederenden S md 5 'smd. close to dj <clamp! nerangesclioben, so that ψ causes a certain compressive stress in front of pt ^ r after Enöastnng the

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slip the spring

1 sheet of drawings

Claims (3)

cannot slip on the wire rope and to Claims: \. to others the expanding effect of the spring is ver strengthens V Wire rope with a loop, which is connected by a roll spring * Terminal, in particular a Fheßpreßklemme 5, it is known (German patent or a splice is held together and a script 637 595) to support the end of the spring on the semi-flexible sheath made of helical wire sheath, so that the spring sheath can move the sheath made of spring wire on the rope is not possible, but this measure with a rectangular or square cross-section serves the purpose of the thickened rope end and to hold the wire rope in its position in the area of the loop. Fivie veistarketed expansion with play surrounds and the turns of the action of the spring is not present here.
Coil spring at least before manufacturing. According to a further development of the invention, the loops have a "distance from one another, the helical spring has an alternating winding distance, according to patent application P 13 03 660.7, with approximately the middle third having a smaller winding distance that the winding distance has than the one on it subsequent enddings of the spring (^ at least in the area of a piece. For example, the winding distance in the third of the spring length at the spring ends can have a middle third in a relaxed and straightened distance such that the spring is about 0.5 to 1 mm and in the state of the spring the closed loop under one of the open end pieces should be approx. 2 to 5 mm,
Expansion effect reinforcing compressive stress ao With such a design of the spring you can hold on to it in the area in which the spring is on the hook 2. Wire rope with a loop according to claim 1, there or the like, a substantially characterized in that the helical spring (3) closed surface, while the spring surface in an alternating winding distance (a, b) , eng adjoining areas through the Largely the middle third (I) «is interrupted in a smaller outer spacing of the turns. You have the spacing of the turns than the adjacent ones - so, while maintaining a good contact, the end pieces (Π, ET) have a surface with specifically low-stressed surfaces 3. Wire rope with loop, according to one or two substantial material savings, since about V _{3 of} the Federden of the preceding claims, length only about half the volume of material indicates that the winding Si & stand (σ) in the middle part need 30, which in total a middle third is achieved in the relaxed and straightforward savings. stretched state of the spring approx. 0.5 to 1 mm The invention is based on the drawings and is approx. 2 to 5 mm at the end pieces. explained in more detail. Show it: Fig. 1 shows a wire rope loop with a different 35 dene coil spacing having spring, 2 shows the state of the spring after it has been pushed onto the rope, but before it is bent the loop, and In the patent application P 13 03 660.7 a Fig. 3 is a wire rope loop with a through wire rope placed under protection with a loop, which has the same winding spacing going through 40 a clamp, in particular an extrusion clamp spring. or a splice is held together and a. As shown in FIG. 1, the wire rope is more known flexible sheath made of helical wire wrapping way put into a loop, which is formed thereby having, the sheath made of spring wire with right, that the rope is bent by 180 ° and the free one angular or square cross-section and 45 end paralldi to the one entering the loop the wire rope is laid in the area of the loop with play around the rope part, after which the parallel laid there and wherein the turns of the helical spring strands are held together, in the illustrated at least before making the loop, a fall by means of a compression sleeve 2. Have a distance from each other. ~ The wire rope of the loop is according to the main By using spring wire as a master 50 patent of a coil spring 3 made of spring wire The material for the cover is guaranteed to have a rectangular or square cross-section burdened loop always enveloped their carcass state. According to the embodiment according to The resulting large opening F i 4 1 and 2 have different spring coils If the silk screen is used again, distances can then be achieved, whereby in the middle area I a small les easily hang up. 55 smaller winding spacing than in the end areas II Through the present additional invention, the and Π 'is selected. The winding distances are in Wire rope loop to be improved so that the spring area I advantageously so that the individual the wire rope cannot slip and spring coils on the inside 4 of the middle section that the loop widening Wirlrang the spring ches I lie close to one another. Outside are because of is reinforced. 60 curvature naturally small distances α between According to the invention, this object is achieved by the individual wires. Dissolved in the areas of Π and Π 'that the turns of the spring are at least in the winding distances b is substantially greater than in the region of one third of the length of the spring to the spring center portion I. The distances b are in allgemeienden such a distance, in that the nen between 2 and 5 min. In the straightened ZuFeder on the closed loop under one of the 65 was the spring, ie before its installation, the compressive stress reinforcing the Wsn expansion effect is in the range I approx. 0.5 to 1 mm. After it can be fixed, the bending produced in this way then results in the pretensioning that is achieved once that the spring is in the same position, ie on the inside of the loading