FIRESTOP COLLAR

Abstract

A firestop collar for sealing of openings, especially of line penetrations, that pass through walls or ceilings, has a frame and a block of optionally intumescent material disposed therein.

Claims

1-15. (canceled)

16. A firestop apparatus, comprising: a frame comprising at least two metal frame parts configured to removably couple to one another, and an intumescent material having a rectangular shape, wherein the intumescent material is configured to be disposed in an interior space of the frame between the at least two metal frame parts, wherein the intumescent material has at least two side edges and at least one opening between the at least two side edges, the at least one opening configured to receive a pipe, cable, or another type of line through the interior space of the frame, wherein the at least two metal frame parts each comprise a right-angle bend which is suitable as a corner part of the frame, wherein the at least two metal frame parts each comprise one or more fastening brackets, each configured to fasten the firestop apparatus to a wall with a screw, wherein the at least two metal frame parts each comprise a front part configured to partially overlap the interior space of the frame in an axial direction, wherein the frame has an opening between the front parts, wherein the opening between the front parts is larger than the at least one opening in the intumescent material in at least one dimension, wherein a first metal frame part of the at least two metal frame parts has a slot-like opening, and wherein a second metal frame part of the at least two metal frame parts has a protrusion configured to form a first connector with the slot-like opening of the first metal frame part, wherein the first connector is capable of at least partly removably connecting the first metal frame part and the second metal frame part.

17. The firestop apparatus of claim 16, wherein the at least two metal frame parts each comprise sheet metal.

18. The firestop apparatus of claim 16, wherein a width of the at least one opening in the intumescent material is smaller than a width of the interior space of the frame.

19. The firestop apparatus of claim 16, further comprising, in at least one direction, an inner lining between the frame and the intumescent material.

20. The firestop apparatus of claim 19, wherein the inner lining is an intumescent inner lining.

21. The firestop apparatus of claim 16, wherein each front part of the at least two metal frame parts is of one piece with a corresponding frame part.

22. The firestop apparatus of claim 16, wherein the second metal frame part has a slot-like opening, and wherein the first metal frame part has a protrusion configured to form a second connector with the slot-like opening of the second metal frame part, wherein the second connector is capable of connecting the second metal frame part and the first metal frame part.

Description

[0031] Further advantages and features will become obvious from the description hereinafter in conjunction with the attached drawings, wherein:

[0032] FIG. 1 shows a sectional view of a first embodiment of the inventive firestop collar, which has been attached upstream from a line penetration,

[0033] FIG. 2 shows a perspective view of a second embodiment of a modular firestop collar with front parts constructed separately from the frame parts,

[0034] FIG. 3a shows, in a top view in the direction of the face bearing on the wall, a firestop collar with a frame of modular construction according to a third embodiment of the invention,

[0035] FIG. 3b shows a first side view,

[0036] FIG. 3c shows a second side view, and

[0037] FIG. 3d shows a perspective view of the third embodiment of the inventive firestop collar.

[0038] FIG. 1 shows a firestop collar 10, which is attached at an opening, e.g. in a wall 11, upstream from a line penetration 12 of a line 14. The firestop collar contains a frame 16, a block 20 of optionally intumescent material located therein and an intumescent inner lining 22 disposed therebetween.

[0039] Frame 16 is joined to wall 11 via fastening brackets 26.

[0040] As an example, line 14 is a water pipe of plastic or contains one or more cables.

[0041] Frame 16, which may consist of sheet metal, comprises a plurality of frame parts 17, wherein each frame part 17 is equipped respectively with a perpendicularly extending front part 19. Front parts 19 engage on block (20) of optionally intumescent material on its side facing away from the wall, and here are constructed in one piece with frame parts 17. On the side facing away from block 20, a plurality of fastening brackets 26 is provided on these frame parts 17.

[0042] Block 20 has a reinforcing inner lining 24, which preferably is integrated into the outer surface of block 29. This reinforcing inner lining 24 may be formed by a mat, a mesh or a fabric, and it preferably consists of a particularly temperature-resistant material, such as metal, glass fibers, basalt fibers, carbon fibers, ceramic fibers or a hybrid material, for example. Alternatively, expanded metal may be used for reinforcing inner lining 24.

[0043] Block 20 may be provided as a molded part, for example in the form of a cuboid. In this case, block 20 is preferably slightly larger on the sides than frame 16 surrounding it, in order to guarantee secure seating of block 20 in frame 16. In addition, in an advantageous embodiment, block 20 is higher than frame parts 17, especially 2 to 6 mm, and, by virtue of this projecting length toward the wall side, it may be mounted in such a way on wall 11 that the optionally intumescent material is pressed with preload against the surface.

[0044] Alternatively, block 20 may also be formed by a foam material introduced into frame 16. For this purpose, frame 16 including intumescent inner lining 22 is first fastened upstream from line penetration 12 and then the space surrounded by frame 16 is filled by injection molding with an optionally intumescent material. Depending on configuration, reinforcing inner lining 24 may be introduced at various points in time.

[0045] Intumescent inner lining 22 is fixed between frame 16 and block 20 and extends along frame parts 17 and the respective front parts 19.

[0046] By means of fasteners 28, firestop collar 10 can be fastened to wall 11 via fastening brackets 26 pinned onto frame parts 17. For example, by the fact that screws are used as fasteners 28, the preload of firestop collar 10 can be adjusted by tightening these.

[0047] FIG. 2 shows an embodiment of a firestop collar 10 with square base face and modular frame 16. Frame 16 surrounding block 20 of optionally intumescent material consists of a plurality of frame parts 17 as well as separate front parts 19, which are joined to frame 16 by means of plug-type connectors 18. In particular, one front part 19 joins two frame parts 17 with one another.

[0048] Front parts 19 are straight and extend along one side rim of frame 16. In this way they brace block 20 of optionally intumescent material on its side facing away from wall 11 or the ceiling and at the same time serve as connecting members between frame parts 17.

[0049] Via fastening brackets 26, frame parts 17 are mutually joined additionally to one another by means of plug-type connectors 18. Preferably, frame parts 17 consist of straight sheet-metal pieces, which can be bent at right angles at a predetermined bending point and thus may be optionally used as corner pieces or as straight frame part 17 for frame 16.

[0050] Alternatively, however, it is also possible to construct frame 16 from straight frame parts 17 and to be able to bend front parts 16 and/or fastening brackets 26 into corner pieces or to configure them as corner pieces.

[0051] In the embodiment shown, firestop collar 10 consists of a square block 20 of optionally intumescent material as well as a frame 16 of respectively four identical frame parts 17, front parts 19 and fastening brackets 26.

[0052] On the basis of the modular structure, firestop collar 10 can be configured in diverse ways and adapted to various opening cross sections. Thus it is possible, for example, to imagine an embodiment (not illustrated) with two or three blocks 20 of optionally intumescent material and a corresponding number of respectively six or eight frame parts 17, front parts 19 and fastening brackets 26, wherein blocks 20 of optionally intumescent material 20 are not provided on their mutually adjoining sides with a frame 16 in this case but instead frame 16 joins blocks 20 of optionally intumescent material with straight frame parts 17 and thus completely encircles them.

[0053] FIGS. 3a to 3d show a further embodiment of a firestop collar 10 with modular frame 16 in various views. Frame 16 consists of a plurality of frame parts 17, which are joined to one another by plug-type connectors 18.

[0054] In the illustrated variant, firestop collar 10 consists of three rectangular blocks 20 of optionally intumescent material and one frame 16 of two L-shaped frame parts 17. These L-shaped frame parts 17 may also be straight strips, which in particular were bent in place at right angles, in order to form a frame 16 adapted to the opening cross section.

[0055] In one embodiment (not illustrated), frame 16 is formed from one continuous strip, which is cut to the desired length and joined at its ends.

[0056] In particular, firestop collar 10 is dimensioned such that fire-resistance class EI 120 is achieved even for walls with a thickness of 100 mm.

[0057] In the marketplace, moreover, it is possible to offer firestop collar 10 not only as a complete set but also as individual parts thereof. In particular, frame 16 and block 20 of optionally intumescent material may be sold individually.