DE1659020A1 - Rust protection and spacer device for concrete reinforcements - Google Patents

Description

Rust protection and spacer device for concrete reinforcement

The invention relates to a rust protection and spacer device for concrete reinforcement used as a sheath for the ends of iron bars near the surface of a reinforced concrete structure is to be used. When setting up reinforcements for concrete casting "are, in particular for heavy reinforcements, often made from bundle pieces Trestles used with consideration for the when Wearing the reinforcements before pouring the concrete's intended function are shaped. Usually the ends are These round iron pieces are bent in such a way that they become feet form, on which the trestles stand and thereby give the necessary stability and contact surface against the shape. These feet formed by the round iron ends bring something Disadvantages in the finished concrete, partly because it easily forms wounds in the surface of the concrete partly because they have an entrance for rusting the Form reinforcement.

The invention aims to bring about a device, which substantially eliminates these disadvantages and, for this purpose, relates to one made of plastic manufactured Rustsefeut & - and spacer device for Staagenenderi, which when pouring the concrete on a baton forra

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should lie.

For this purpose, the device according to the invention consists of a stocking made up of a sock that is open at the one end and closed by a bottom at the other end

is formed

Sleeve / its cavity near the bottom has a smaller cross-section has than the cross-section of the remaining parts of the cavity that are closer to the open end, and the one with a number of axially about the sleeve these are distributed radially from the outer ManteX surface the sleeve is equipped with spacers protruding from the sleeve,

Suitable for the purpose. Plastics are proportionate flexible plastics, such as polyethylene or polyvinyl chloride, which with regard to the relatively low price are preferable, although other plastics can also be used.

In the mentioned embodiment of the protection and spacing device, the end covered by the device is the rod against the effects of moisture on the concrete surface protected, furthermore the device used for supporting the iron on a Number of limited areas against the concrete form of concern come through a substance that experience has shown no or few wounds in the poured concrete brings about.

Thanks to the shape of the hollow space of the Hüls®, which is closed on a BMe, it can be easily bought by loading a lundeisens

<- 3 -, ■■■■. ■■■. y; . -

be pulled, with between the sleeve msä the iron a ring-shaped roughness is formed, which when pouring of the concrete is partially filled with concrete and thereby the part of the tie bar located inside the sleeve protects against rust, which otherwise, if the inner end of the Sleeve when building up the reinforcement close to the concrete surface would come to rest and at the same time close against the iron would be applied, about a proportionately short creepage distance with which the iron could come into contact.

The invention is described in more detail below with reference to the accompanying drawing, in which FIG. 1 shows an embodiment of the device according to the invention, partially in section, I ¹ Ig, 2 a support provided for reinforcing iron, an embodiment which is often used in practice, which consists of a curved piece of round iron, the ends of which form the bites of the support and are equipped with the rust protection and spacer device according to the fourth invention. Figures 3 and V represent modifications of the device shown in Figure 1, partly in section.

The device shown in the figures forms a stocking, which in Fig. 1 consists of a conical sleeve which is open at the larger end and at the smaller end The end is closed by a base 2 »The conicity of the sleeve can be very small, in particular not that great as shown in FIG. 1 for the sake of clarity. the

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-If-

In practice, supports are usually made of round iron with a diameter of between h and 10 lam, the diameter difference in the case of a conical cavity of the sleeve with a length of the same being expediently between 0.5 and 1 mm.

The sleeve has a number of spacing members projecting radially from the surface of the sleeve along at least one generatrise of the sleeve. In the embodiment according to FIGS. 1 and 2, these spacer members consist of rings 3 extending peripherally around the sleeve. These protrude at least 0.5 ram, but preferably 1-3 m and more outside the outer surface k of the sleeve,

Pig. 2 shows a support made of a piece of round iron 5 for laying a coarse reinforcing iron, which is equipped with devices according to FIG. 1 at the ends of the round iron. The round iron piece forms two legs 6 and an intermediate "recessed part 7 carrying the reinforcement iron, as well as a support surface of the support defining, on each side of a plane" extending through the two legs "ends 8, which are close to the bottom of a sleeve fit tightly so that the sleeve is held against the support while manipulating it. Between the sleeve and the round Elsen 5 is located at the open end 9 of the sleeve 10 from a column, the feelm Gieesen the concrete is filled with concrete, the inn #> rh ^ft 1b whereby the sleeve iron present before

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Rusting is protected.

Fig. 3 shows a modification of the device Fig. 1 shows in the spacer members 11 only one side protrude along the sleeve radially from the sleeve. In In this design, the hollow roughness of the sleeve is essentially » cylindrical, but close to the closed end 12 has a constriction 12 at which the sleeve with a in the same inserted round iron comes into engagement.

In the embodiment shown in FIG. H , one of the rings surrounding the sleeve has bores 13 for nails on the side of the cavity, with which the support can be attached to a fora. These holes are laid in such a way that there is a dense / found between the cavity of the holes 13 and the cavity of the sleeve 1. After the concrete has solidified, such nails can easily be removed from the outside of the baton without moisture being able to reach the iron of the support from outside.

GOS8E0 / O819

Claims (5)

Claims f 1. J Rust protection and spacer device made of plastic, characterized in that it is formed from a sleeve (1) which is open at one end (9) and closed at the other end by a base (2), and its hollow space has a smaller cross-section near the bottom than the cross-section of the remaining parts of the cavity closer to the open end (9) of the sleeve, and which protrude radially from the outer surface of the sleeve with a number of generatrises distributed along the outer surface of the sleeve Spacer organs (3.11) is equipped. 2. Device according to claim 1, characterized in that the spacer elements are peripherally extending ribs (3,11) form. 3. Device according to claim 2, characterized in that that the spacer elements (3) enclose the sleeve (1) in a ring shape. * f. Device according to one of the preceding claims, characterized in that the cavity of the sleeve is a has a substantially conical shape. 5. Device according to one of claims 1-3, characterized characterized in that the sleeve has a taper (12) close to its closed end. 00 0850 / QS blank