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US 11,123,971 B2Granted
Method and device for producing a profiled element
AssigneeHilti Aktiengesellschaft
InventorsAndreas Ober, Markus Weiling
Life of this patent
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Abstract
A profile element is useful for sealing building-structure joints, especially for sealing against sound and smoke and optionally against fire. An apparatus is useful for manufacturing such profile element and to the use of the profile element manufactured according to the invention for the acoustic, smokeproof and/or fireproof sealing of connecting joints in drywalls, especially of expansion joints.
Claims20
A profile element, manufactured by a method comprising:
- a) providing a film,
- b) applying a free-flowing reaction mixture on an upper side of the film,
- c) joining a first side-edge region of the film with a second side-edge region of the film to create a profile element of a first shape,
- d) foaming the free-flowing reaction mixture, and
- e) shaping the profile element to a second shape different from the first shape by applying pressure to the film using at least one profile corresponding to the second shape,
- wherein foaming the free-flowing reaction mixture of d) is performed during a first period and shaping the profile element of e) is performed during a second period at least partially overlapping the first period,
- wherein a volume of the free-flowing reaction mixture to be applied is dosed such that, in a fully reacted state, the volume corresponds to an inside volume of the profile element with the film completely enclosing the free-flowing reaction mixture, and
- wherein the at least one profile applies the pressure during the first period of time while the free-flowing reaction mixture is being foamed, to thereby simultaneously foam the free-flowing reaction mixture and shape the profile element with the at least one profile for a duration of overlap between the first and second periods, the pressure applied by the at least one profile to form at least a first region and a second region of the profile element, the first and second regions having respective first and second shapes and joined to have a continuous one-piece construction formed from the free-flowing reaction mixture.
5 more elements
A method of making a profile element, comprising:
- forming the profile element with an apparatus comprising:
- a) a feed apparatus for feeding a film,
- b) a roll for perforating the film,
- c) at least one conveyor for laying the film flat and conveying the film,
- d) a forming shoulder to apply pressure to the film for shaping the profile element,
- e) a thermal welding system for joining a first side-edge region of the film with a second side-edge region of the film to form the profile element of a first shape,
- f) a reaction section for foaming a free-flowing reaction mixture,
- g) at least one shaping profile to shape the profile element to a second shape different from the first shape, and
- h) a cutting unit for cutting the profile element to a desired length,
- wherein the reaction section is to foam the free-flowing reaction mixture during a first period and the at least one shaping profile is to shape the profile element during a second period at least partially overlapping the first period,
- wherein the at least one shaping profile has a shape which simultaneously applies pressure to the film of the profile element during the first period of time while the free-flowing reaction mixture is being foamed, to thereby simultaneously foam the free-flowing reaction mixture and shape the profile element with the at least one shaping profile for a duration of overlap between the first and second periods, the pressure applied by the at least one shaping profile to form at least a first region and a second region of the profile element, the first and second regions having respective first and second shapes and joined to have a continuous one-piece construction formed from the free-flowing reaction mixture.
8 more elements
A profile element, comprising:
- a film, wherein a first side-edge region of the film is joined with a second side-edge region of the film, and
- a foamed reaction mixture, wherein a volume of the foamed reaction mixture corresponds to an inside volume of the profile element, with the film completely enclosing the foamed reaction mixture, wherein the profile element comprises a first region and a second region, respectively having a first shape and a second shape, and a third region connecting the first region and the second region, wherein the first region and the second region are joined by the third region to have a continuous one-piece construction formed from the foamed reaction mixture and the third region has a shape different from the first shape and the second shape.
Dependencies are inferred from the claim text.