FI67116C - STEENGNINGSORGAN FOER ATT TILLSLUTA AENDORNA HOS HAOLRUMMEN I N HAOLRUMSPLATTA - Google Patents

Description

3 671 1 6

The present invention relates to a closure member for closing the ends of the cavities of a hollow slab, the member of which is preferably a plastic plug, the central part of which is pressable inside the cavity end of the hollow slab and has a stop edge adaptable to the end of the slab.

Hollow core slabs made of concrete with two or more 10 or more, e.g., five longitudinal cavities of the slab in parallel are commonly used in construction. It is known to use plastic plugs to close the ends of these cavities, which are inserted by hand by pressing them one at a time on each end of each cavity. This manual placement of the plugs is a relatively time consuming step.

It is an object of the present invention to facilitate the handling and insertion of these plugs. The closure member according to the invention is characterized in that two or more plugs are connected to each other in one row by plugs 20 in one piece, the length of which substantially corresponds to the part of the hollow core slab between the plugs.

The closure members according to the invention, in which several plugs are connected to each other in a chain-like manner by means of spacers, can be stacked on top of each other and packed into a larger cassette. From such a cassette, the closure members can be removed and fitted into a unit formed by several plugs. It is also possible to automate the handling of the cassette, whereby the closing member can be removed from the stack 30 and also pressed into place mechanically.

The invention will now be described in more detail with reference to the accompanying drawing, in which Figure 1 shows a closure member according to the invention at the end of a hollow core slab, Figure 2 shows the same closure member .

The closure member according to the invention has a plurality of plugs 1 connected in a row by spacers 2 between the inlet ends. The plug is intended to be pressed into the cavities of the cavities of the cavity plate 3 to close these ends.

The plug has a rim 5 which comes into place in the printed plug against the edges of the cavity at the end of the plate. The side wall 6 of the plug has an outer part, the cross-section of which corresponds to the cross-section of the cavity, and an inner part; a part with a somewhat smaller diameter. This makes it easier to fit the plug into the cavity. The central part 7 of the plug can be, for example, in the shape of a concave, truncated conical surface. The end of the plug has an annular ridge 8 which stiffens the end.

In the closing member according to the invention, for example, five plugs are connected into a chain by means of spacers 2 between the edges 5 of the plugs. The spacers 20 are integral with the plugs and their length corresponds to the width of the part between the cavities.

The closure member according to the invention is made of plastic, e.g. PVC. It can be made by either vacuum casting or injection molding.

25 If necessary, holes can be made in the plugs at appropriate points to allow water to accumulate in the cavities to escape. The length of the spacers 2 can also be somewhat longer than the width of the part between the cavities of the slab. In this case, the spacers made of flexible material remain in a slightly curved position when the plugs are pressed into place.

Claims (1)

A closure member for closing the cavity ends of a hollow core slab, the member of which is preferably a plastic plug (1), the central part (6, 7) of which can be pressed into the hollow end of the hollow core slab and has a abutment edge (5) which can be fitted to the slab end. at the edges of the cavity, characterized in that the two or more plugs (1) are connected to each other in one row by the plugs by a spacer (2) in one piece, the length of which corresponds substantially to a part of the cavity plate between the plugs.