Lead-through for the fireproof disposition of electric cables through a wall
First Claim
1. A lead-through or transit for the fireproof disposition of electric cables through an opening in a wall or the like, comprising a metal frame the opening of which accommodates the cables and modularly dimensioned blocks surrounding each cable, as well as stay strips inserted between rows of blocks for stiffening the pack formed by the blocks, characterized in that the frame is formed by at least one frame half which is fitted on one side of the wall directly opposite the opening in said wall, the frame half on at least three sides comprising comparatively thin metal plate or sheet, extending substantially perpendicular to the wall and including a profiled portion in the form of a channel or trough, which has its longitudinal axis substantially parallel to the edge of the sheet remote from the wall, said portion extending towards the wall from the vicinity of this edge, with its bottom in a plane outside the non-profiled portion of the frame half side, while the fourth side of the frame half is formed by at least one pressure plate bearing against the blocks in the transit, said plate having the same profile as the channel-like portions of the other three sides along its edge portion remote from the wall, and that the opening in the frame half is filled with blocks and throughgoing cables such that the appropriate sides of peripheral blocks engage against the bottoms of said channels formed by said profiled portions.
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Accused Products
Abstract
A fireproof lead-through with a frame, comprising at least one frame half for fitting on one side of a wall with a rectangularly shaped pack of packing blocks through which cables pass filling the opening in each frame half, and engaging with it peripheral portions in channel-like profiled portions in each frame half. Stay strips with a special configuration engage with their ends in the profiled portions for stiffening the pack of blocks. The transit is made pressure-tight by the use of conventional wedging means or pouring composition.
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Citations
16 Claims
- 1. A lead-through or transit for the fireproof disposition of electric cables through an opening in a wall or the like, comprising a metal frame the opening of which accommodates the cables and modularly dimensioned blocks surrounding each cable, as well as stay strips inserted between rows of blocks for stiffening the pack formed by the blocks, characterized in that the frame is formed by at least one frame half which is fitted on one side of the wall directly opposite the opening in said wall, the frame half on at least three sides comprising comparatively thin metal plate or sheet, extending substantially perpendicular to the wall and including a profiled portion in the form of a channel or trough, which has its longitudinal axis substantially parallel to the edge of the sheet remote from the wall, said portion extending towards the wall from the vicinity of this edge, with its bottom in a plane outside the non-profiled portion of the frame half side, while the fourth side of the frame half is formed by at least one pressure plate bearing against the blocks in the transit, said plate having the same profile as the channel-like portions of the other three sides along its edge portion remote from the wall, and that the opening in the frame half is filled with blocks and throughgoing cables such that the appropriate sides of peripheral blocks engage against the bottoms of said channels formed by said profiled portions.
- 5. A lead-through or transit for the fireproof disposition of electric cables through an opening in a wall or the like, comprising a metal frame the opening of which accommodates the cables and modularly dimensioned blocks surrounding each cable, as well as stay strips inserted between rows of blocks for stiffening the pack formed by the blocks, characterized in that the frame is formed by at least one frame half which is fitted on one side of the wall directly opposite the opening in said wall, the frame half on at least three sides comprising comparatively thin metal plate or sheet, extending substantially perpendicular to the wall and including a profiled portion in the form of a channel or trough, which has its longitudinal axis substantially parallel to the edge of the sheet remote from the wall, said portion extending towards the wall from the vicinity of this edge, with its bottom in a plane outside the non-profiled portion of the frame half side, while the fourth side of the frame half consists of metal sheet with substantially the same form as that of the other three sides, and that the opening in the frame half is filled with blocks and throughgoing cables, such that the respective sides of peripheral blocks engage against the bottoms of said channels formed by said profiled portions.
- 11. A lead-through or transit for the fireproof disposition of electric cables through an opening in a wall or the like, comprising a metal frame having an opening for accommodating the cables, the frame being formed by at least one frame half having at least three sides comprising comparatively thin metal plate or sheet and including a profiled portion in the form of a channel or trough, which has its longitudinal axis substantially parallel to one edge of the sheet, said portion extending toward the opposite edge from the vicinity of said one edge, with its bottom in a plane outside the non-profiled portion of the frame half side, while the fourth side of the frame half is formed by at least one pressure plate having an edge portion which has the same profile as the channel-like portions of the other three sides, the opening in the frame half being filled with packing blocks such that the appropriate sides of peripheral blocks engage against the bottoms of said channels formed by said profiled portions.
Specification