Control box for an elevator
First Claim
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1. A control box for an elevator for mounting in a wall of an elevator shaft comprising:
- a hollow box having a wall with an opening formed therein;
a cable extending through said opening in said wall;
a fireproof element mounted in said box surrounding said cable in a region of said opening to prevent smoke or flames inside said box from exiting through said opening; and
a clamping means including a pair of generally planar clamping elements movable relative to one another and a clamping device and wherein said fireproof element is clamped in place between said clamping elements by said clamping device extending through said fireproof element and drawing said clamping elements toward one another.
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Abstract
An elevator control box is constructed to avoid propagating a cable fire in the control box into the elevator shaft. The control box is incorporated in a wall of the elevator shaft and has an opening through which a cable is guided. A fireproof element is positioned in the control box surrounding the cable in the region of the opening.
7 Citations
20 Claims
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1. A control box for an elevator for mounting in a wall of an elevator shaft comprising:
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a hollow box having a wall with an opening formed therein;
a cable extending through said opening in said wall;
a fireproof element mounted in said box surrounding said cable in a region of said opening to prevent smoke or flames inside said box from exiting through said opening; and
a clamping means including a pair of generally planar clamping elements movable relative to one another and a clamping device and wherein said fireproof element is clamped in place between said clamping elements by said clamping device extending through said fireproof element and drawing said clamping elements toward one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control box for an elevator for mounting in a wall of an elevator shaft comprising:
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a hollow box having a wall with an opening formed therein;
a cable extending through said opening in said wall;
a fireproof element mounted in said box surrounding said cable in a region of said opening to prevent smoke or flames inside said box from exiting through said opening; and
a pair of clamping elements and a clamping device, one of said clamping elements being movable relative to another of said clamping elements and said fireproof element being clamped in place between said clamping elements by said clamping device drawing said clamping elements toward one another. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification