Method and apparatus for producing a tubular sealing element
AssigneeHilti Aktiengesellschaft
InventorsAndreas Ober, Björn Bambach, Walter Braunmüller, Hanin Jildeh
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Abstract
A method for producing of a tubular sealing element for sealing a safing slot in a curtain wall construction is described, particularly for sealing the slot with regard to noise, smoke, and fire and if applicable with regard to water, and an apparatus for producing such a tubular sealing element, as well as to the use of the tubular sealing element produced according to the invention for fire-, smoke-, sound- and water-proof sealing of perimeter joints in curtain wall constructions are described. In particular, an improved method for continuous and endless production of a tubular sealing element for different safing slot dimensions is described.
Claims17
A method for producing a tubular sealing element for sealing a building joint, comprising:
- a) providing a first film on a conveyor belt,
- b) applying a reaction mixture capable of flow on a top side of the first film,
- c) providing a second film over the applied reaction mixture and over a first and a second side edge region of the first film,
- d) connecting a first side edge region of the second film with the first side edge region of the first film, and connecting a second side edge region of the second film with the second side edge region of the first film, to produce an essentially cylindrical tubular sealing element with a first and a second connection area, wherein first film and the second film have different lengths, the second film having a first side surface comprising a first area of attachment and a second side surface comprising a second area of attachment, the first area of attachment and the second area of attachment to mount the tubular sealing element in the building joint, and
- wherein the method further comprises metering flow of the reaction mixture to have a volume that corresponds to an inside volume of the tubular sealing element, in a reacted state, and wherein parts of the first film and parts of the second film completely enclose the reaction mixture.
An apparatus for producing a tubular sealing element, for sealing a safing slot in a curtain wall construction, having a casting system for mixing and applying a reaction mixture capable of flow, comprising
- a) a first feed apparatus for supplying a first film,
- a) a second feed apparatus to supply a second film,
- c) at least one conveyor to lay the first and second film flat and to convey the first and second film,
- d) a shaping shoulder for shaping the first film,
- e) a metering system for applying a reaction mixture capable of flow,
- f) a thermal welding system for connecting a first side edge region of the second film with the first side edge region of the first film, and connecting a second side edge region of the second film with the second side edge region of the first film,
- g) a reaction segment to foam the reaction mixture capable of flow, and
- h) a conveyor to guide the films, wherein first film and the second film have different lengths, the second film having a first side surface comprising a first area of attachment and a second side surface comprising a second area of attachment, the first area of attachment and the second area of attachment to mount the tubular sealing element in the sating slot.
Dependencies are inferred from the claim text.