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US 2022/0186490 A1Published application
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.
Claims20
1-16. (canceled)
17:
- A method for producing a tubular sealing element for sealing a building joint, the method 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 a tubular sealing element with a first connection area and a second connection area, and
- f) shaping a profile geometry, wherein a sealing portion of the profile geometry, in cross section, consists of one sealing region,
- wherein the method further comprises metering flow of the reaction mixture to have a volume corresponding 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.
5 more elements
18:
- The method according to claim 17, wherein the sealing region is, in cross section, generally rectangular, trapezoidal, circular, or U-shaped.
19:
- The method according to claim 17, wherein the sealing region has a generally rectangular cross section having an upper surface, a lower surface, a first side surface, and a second side surface approximately parallel to the first side surface, and optionally with one or more rounded corners.
20:
- The method according to claim 17, further comprising:
- e) optionally perforating the tubular sealing element,
- f2) allowing the reaction mixture capable of flow to foam, thereby shaping the desired profile geometry,
- g) venting the tubular sealing element, and
- h) cutting the tubular sealing element to the desired length.
2 more elements
21:
- The method according to claim 17, further comprising:
- i) applying an adhesive layer to connection areas of the tubular sealing element, and either
- j) optionally creating openings or perforations for water transfer, or
- k) optionally welding outer sides of connection areas of the tubular sealing element to enclose the reaction mixture and achieve complete water-tightness.
1 more element
22:
- The method according to claim 21, wherein applying the adhesive layer in i) is performed using an adhesive feed apparatus.
23:
- The method according to claim 21, wherein j) is performed and wherein creating openings or perforations in j) for water transfer is performed by applying a laser.
24:
- The method according to claim 17, wherein d) comprises a connecting process by thermal welding.
25:
- The method according to claim 17, wherein the first film and/or the second film comprises a laminate.
26:
- The method according to claim 17, wherein the reaction mixture capable of flow is an intumescent, open-celled foam material based on polyurethane.
27:
- The method according to claim 17, wherein the tubular sealing element comprises a thermally resistant flexible foam material for insulating and sealing, wherein the tubular sealing element is sized for positioning in a safing slot, wherein d) comprises forming the tubular sealing element to comprise a bottom side cover and a top side cover, with the top side cover connected at two positions, spatially disposed from each other, to the bottom side cover;
- wherein the method comprises forming the bottom side cover and the top side cover to surround the thermally resistant flexible foam material;
- and
- wherein the method comprises forming the tubular sealing element to comprise a first connection area for attaching the tubular sealing element to an interior wall surface of the curtain wall construction and a second connection area for attaching the tubular sealing element to an outer edge of the floor in an installed state.
1 more element
28:
- The method according to claim 17, further comprising forming the tubular sealing element based on a) to d) to have a continuous length.
29:
- A tubular sealing element produced according to the method according to claim 17.
30:
- A method for fire-, smoke-, sound- and water-proof sealing of perimeter joints in a curtain wall construction, the method comprising:
- applying the tubular sealing element according to claim 27 to a safing slot.
31:
- 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, the apparatus comprising:
- a) a first feed apparatus for supplying a first film,
- a) a second feed apparatus for supplying 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, and
- i) 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.
7 more elements
32:
- The apparatus according to claim 31, further comprising
- j) a perforation unit for venting the tubular sealing element,
- k) a perforation unit for perforating the connection element, and
- l) optionally, a cutter to cut the tubular sealing element to a desired length.
1 more element
33:
- The apparatus according claim 31, wherein the first feed apparatus and/or the second feed apparatus comprise at least one roll.
34:
- The apparatus according to claim 31, wherein the conveyor to guide the film comprises a conveyor belt having one or more guide elements.
35:
- A tubular sealing element produced using the apparatus according to claim 31.