DE1981572U - SPACER FOR REINFORCEMENT BARS TO BE SET IN CONCRETE. - Google Patents

Description

Spacers for rebar to be set in concrete :.

Spacers for the reinforcement of reinforced concrete structures are known. They consist of bent wire and partly of bent and welded wire parts. They either have a device for clamping or for Insertion of rebars on and hold the required distance through one or more supporting legs. '■' ".- ■

Disadvantages of the known designs are that they either consist of several parts and these ■ only by welding together to form a common Device must be made, or that they / - ■ if they consist of a / single piece of wire - Have shapes that are difficult to manufacture with regard to their clamping legs, which are in the er "■ Do not simply produce the required wire size let go, or which then easily fall off move, etc., so that they are partially through toboggan wires must be connected to the welded wire mesh in order to prevent its loss, its slipping and its Avoid twisting. '. ".

Above all, however, it is a disadvantage when using spacers for the upper reinforcement, which are more than 8-10 cm high, the wire diameter cannot be chosen large enough; this Disadvantage arises when the construction of the clamp leg short bends ■ in alternating Provides adjustments. One-legged spacers also prove to be disadvantageous because the load that they have to withstand is great. The upper

- P -

Reinforcement, a Betoh-Bodenkonstrük tion, must; :: _year: ■■ - ..: after their incorporation by gangways launched - be accessible and, if it is / is to smaller buildings without proper erecting cranes even .'mit Betonkarren.befahrbar -; it is in any case "heavily loaded, so that high demands are placed on the stability of the spacers.:

The invention relates to a spacer 1st _INS: Special for the upper reinforcement, which with simple production way of a single piece of wire, a high stability with. a sufficient stability, and which can be quickly and easily clamped to intersecting reinforcing bars by means of -Zulegeeisen, so that tying is superfluous. As a matter of fact, the invention is nden with reference to drawings, which only represent a preferred embodiment. . explained in more detail.

Fig. 1 shows a perspective view of the spacer obliquely from the side. The spacer consists of a single piece of wire and has two legs 1 and 1 'that attach to. their upper. Ends, two in curl. bent.- legs 3 and 3 ', which have the downwardly directed troughs 2 and 2 ^! form; in the further course the legs 3 and 3 "are bent upwards again, initially forming the upwardly open troughs 4 and -4» "- and unite, directed obliquely upwards at the apex 5. - 7. ./ _-;.

Fig. 2 shows the spacer also in perspective in side view together with a longitudinal

and one, cross bar of the associated structural steel— ■; _: matt, with a formwork serving as a support ■■

indicated - is "» - " ^: ,." ■ - ^.;

The spacer is installed on one '' Crossing point of the reinforcement mesh as follows:

The spacer is hung with its trough 5 on the upper rod 6 of the reinforcement mat, / - then pushed under the lower bar 7 so that it comes to rest in: the troughs 4 and 4 '/. As a result, when the spacer is loaded, the _{pressure exerted on the lower tab 7:} Pressure. not. _: just; to the welds, but through the one below: fully transferred to the upper rod.

The spacer is then fixed in the structural steel mesh by a fitting iron 8, which is pushed over the top rod SC into the troughs 2 and 2'-.

The spacer can also be other when viewed from above. Have forms as -the ones shown in: the ^. resulting here. Shape of an open triangle for the -upper legs ;, can -. the shape of a semicircle ^{-or-:; a:} rectangle ,; /whose ; a; Seita open: is, or the like. Modifications are chosen without, therefore, the: frame of the. Invention.will.be. / The triangle shape: is just \ the simplest and most useful. : Dim ■ leg 3 and $ 'need; also ^: not at a right "angle to each other; to approach -i - \ ■: _ /;; / ..: \

On the other hand, it is important that the legs bent over from the legs should be several / ¥ el _; have lungs.:

and thereby- hollows (shapes) / arise, _ the. Upper and lower st. so include _: that by a
Additional iron, which is also arranged in such troughs, the device is fixed to the reinforcement mesh, ■■■ .. '". .. ^;

Claims (4)

■ '". ■ - ■ - -: 5 _ -' · '' ■". ■ '■' ■. ■ ". ■■ '. ■' ■ '." ■. ■ - ■ "Protection claims Λ. -' /; V. -, - ■ -Λ: - ■, -; - X; 1.) Spacers for the upper reinforcement of Reinforced concrete structures consisting of a single piece of wire with two / supporting legs and a device for clamping to reinforcing bars that cross each other, characterized in that the two legs (1, 1 ') are in the the intended height merge into two legs (3.3 '), which run towards each other roughly at right angles and merge at the vertex (5). nigen. . '-.'. '. ... " 2.) Spacer according to claim 1, characterized in that that the legs "(3,3 ') immediately after their branching off from the supporting legs (1.1 ') the troughs open at the bottom (2.2') for picking up one over the top bar (6) the reinforcement wire (8) ■ and then the open at the top Wells .. (4,4 '.) To accommodate the guard rod (7) form the welded wire mesh. 3.) Spacer according to claims 1 and 2 thereby marked that the legs at-.your. "'"' Convergence at the apex (5) a corrugation to the firm.Sitζ on the top bar (6) the welded wire mesh. : ..-- 4.) Spacer according to claims 1,2 and 3, characterized in that after simple Place the corrugation (5) on the top rod, . and moving the holder until the Lower bar of the intersection of the welded wire mesh from the troughs (4,4Λ); is recorded., -.- .. - 6 - the -Zulegeeisen 8 after its insertion- over the top tab (6) in / the recesses. (2., 2 ') the: device stuck. ■ / ... ■.