Fire Protection Sleeve

Abstract

A firestop collar (10) for sealing of openings, especially of line penetrations (12), that pass through walls (11) or ceilings has a frame (16) and a block (20) of optionally intumescent material disposed therein, and is characterized in that an intumescent inlay (22) is disposed between the block (20) and the frame (16).

Claims

1-14. (canceled)

15. A firestop apparatus, comprising: a frame with an open front end and an open rear end; a block disposed within the frame between the open front end and the open rear end, the block having a first thickness and being made of a first material comprising a first passageway extending between the open front end and the open rear end; and an inlay disposed between the open front end of the frame and a front surface of the block, the inlay comprising a second passageway aligned with the first passageway of the block and being made from a second material of a second thickness different from the first thickness, wherein the first passageway and the second passageway are occupied by at least one line in an installed state that allows the at least one line to pass through the open front end and the open rear end of the frame.

16. The firestop apparatus of claim 15, wherein the first thickness is greater than the second thickness.

17. The firestop apparatus of claim 15, wherein the first material is different from the second material.

18. The firestop apparatus of claim 15, wherein the first material of the block comprises a fire-resistant material.

19. The firestop apparatus of claim 18, wherein the fire-resistant material comprises an intumescent material which expands into at least the first passageway when exposed to heat.

20. The firestop apparatus of claim 15, wherein: the open front end of the frame is in a first plane, a front surface of the block is in a second plane, and the first plane is substantially parallel to the second plane.

21. The firestop apparatus of claim 15, wherein: the open rear end of the frame is in a first plane, a rear surface of the block is in a second plane, and the first plane is substantially parallel to the second plane.

22. The firestop apparatus of claim 15, wherein: the block is in a first plane, the inlay is in a second plane, the open rear end of the frame is in a third plane, and the first plane, the second plane, and the third plane are substantially parallel to one another.

23. The firestop apparatus of claim 15, wherein: the open front end of the frame has an opening of a first size, and the first passageway has a second size different from the first size.

24. The firestop apparatus of claim 15, further comprising: a fastener bracket configured to couple the frame to a mounting surface.

25. The firestop apparatus of claim 24, wherein the fastener bracket is coupled to a side surface of the frame.

26. The firestop apparatus of claim 15, wherein the frame comprises a rigid material.

27. The firestop apparatus of claim 15, wherein the block is in contact with the inlay in at least the installed state.

28. The firestop apparatus of claim 15, wherein the frame comprises a modular construction.

29. The firestop apparatus of claim 15, wherein the inlay is exposed to view through the open front end of the frame in the installed state.

Description

[0027] Further advantages and features will become obvious from the description hereinafter in conjunction with the attached drawings, wherein:

[0028] FIG. 1 shows a sectional view of a first embodiment of the inventive firestop collar, which has been attached upstream from a line penetration,

[0029] FIG. 2a 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 second embodiment of the invention,

[0030] FIG. 2b shows a first side view,

[0031] FIG. 2c shows a second side view, and

[0032] FIG. 2d shows a perspective view of the second embodiment of the inventive firestop collar.

[0033] FIG. 1 shows a first embodiment of 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 inlay 22 disposed therebetween, and is joined to wall 11 via fastening brackets 26. As an example, line 14 is a water pipe of plastic or contains one or more cables.

[0034] Frame 16 has a plurality of side portions 17, which surround block 20 on its side rims 18 and relative to which a plurality of front portions 19 extends perpendicularly. On the side facing away from block 20, a plurality of fastening brackets 26 is provided on these side portions 17.

[0035] Block 20 has a reinforcing inlay 24, which preferably is integrated into the outer surface of block 20. The reinforcing inlay 24 may be formed by a mat, a mesh or a fabric.

[0036] Preferably, reinforcing inlay 24 consists of particularly temperature-resistant material, such as metal, glass fibers, basalt fibers, carbon fibers, ceramic fibers or a hybrid material, for example.

[0037] Alternatively, expanded metal may be used for reinforcing inlay 24.

[0038] Block 20 may be provided as a molded part, for example in the form of a cuboid. to this case, block 20 is preferably slightly larger than frame 16 surrounding it, in order to guarantee secure seating of block 20 in frame 16. In particular, block 20 is 2 mm to 6 mm higher than side portions 17, and, by virtue of this projecting length toward the wall side, it may be mounted in such a way on wall 11 that the intumescent material is pressed with preload against the surface.

[0039] Alternatively, block 20 may also be formed by a foam material introduced into frame 16. For this purpose, frame 16 including intumescent inlay 22 is first fastened upstream from line penetration 12 and then the space surrounded by frame 16 is filled by injection molding with an intumescent foam material. Depending on configuration, reinforcing inlay 24 may be introduced at various points in time.

[0040] Intumescent inlay 22 is fixed between frame 16 and block 20 and extends along side portions 17 and the respective front portions 19.

[0041] Fastening brackets 28, which consist of angled sheet-metal, for example, are joined on the outside of frame 16 to side portions 17. As an example, this joint may be made in the form of a plug-type connector by means of brackets or else via additional fastening elements, such as screws or rivets.

[0042] By means of fasteners 28, firestop collar 10 can be fastened to wall 11 via fastening brackets 26 attached to side portions 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.

[0043] FIGS. 2a to 2d show a second embodiment of a firestop collar 10 in various views, wherein frame 16 is of modular construction and preferably consists of a plurality of individual parts 30, which are joined to one another by plug-type connectors 32.

[0044] 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 individual parts 30. These L-shaped individual parts 30 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.

[0045] 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.

[0046] In one embodiment (not illustrated), firestop collar 10 consists of at least two parts, wherein only one part, especially one half, may also be used as a fully effective firestop collar 10.

[0047] 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.

[0048] 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.