Method and apparatus for producing a tubular sealing element
AssigneeHilti Aktiengesellschaft
InventorsAndreas Ober, Bjoern 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 in cross section, 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
- f) shaping the profile geometry, wherein a sealing portion of the profile geometry, in cross section, consits of one sealing region,
- 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, and
- wherein the method does not comprise perforating the first connection area or the second connection area.
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,
- h) a conveyor to guide the films, wherein first film and the second film have different lengths in cross section, 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 safing slot, and
- at least one further conveyor belt or profile to shape the tubular sealing element to have a profile geometry, wherein a sealing portion of the profile geometry, in cross section, consists of one sealing region,
- wherein the apparatus does not comprise a perforation unit for perforating a connection area.
Dependencies are inferred from the claim text.