The construction of rapid opening thermally insulated roller doors is challenging in that there are both structural and operational challenges. The door blades need to have structural strength, and also need to have dimensional stability. Disclosed is a thermally insulated roller door blade in which at least the material forming the outer surface is able to resist the tensile loads during retraction, and the blade is provided with flexible spacer strips that help the primary insulating material of the door blade to maintain dimensional stability, primarily by helping to resist crushing. This allows softer materials to be used for thermal insulation than previously used, helping to reduce weight and to improve thermal efficiency, while at the same time allowing smooth and repeatable operation even when exposed to freezing temperatures for long periods.

A roll-up door assembly includes a header, a face frame, and a lift frame. The lift frame is removably coupled to the header and is configured to be conveniently discarded once the header is securely installed to the face frame. The header further includes links along at least one end of individual slats that comprise a door panel. The links and the slats are configured to be rolled and unrolled from a spiral as the door panel is opened and closed. The links include a noise abatement feature that is adapted to decrease a sound pressure level associated with the links impacting, for instance, one another during the process opening and closing the door. The links further include a friction reduction surface that reduces friction at the coupling of adjacent links.

A high speed roll door is movable between an open and a closed position at an opening of a building. The door includes a flexible curtain and a pair of side columns. Each side column provides an inner track to guide the curtain in vertical movement and restrain the curtain from lateral movement during deployment and retraction. The curtain further includes multiple cross bars supporting the flexible curtain from one of the pair of side columns to the other. Each of the cross bars further includes a first longitudinal bar sandwiching part of the curtain; and a second longitudinal bar pivotally connected to the first longitudinal bar. The hinge has an axis of rotation parallel to the first and the second longitudinal bars. At least a wheel is rotatably affixed to each end of the second longitudinal bar to engage the inner track of each of the side columns.

A spacer device for slats of rolling shutters or rolling gates that slide in a first vertical guide and a second vertical guide opposed to one another comprises a first and a second connecting rods (2), each having at least one first slot (3, 4) connected via first pins (5) inside first seats (7) present on the opposed faces (8, 9) of a first slat (10) and connected via second pins (6) inside second seats (4) present on the opposed faces (17, 18) of a second slat (19), said first and second pins having a stem (20), which has a first end (21) that engages in first and second housings (22), present, respectively, on first and second caps (23, 24) for closing said opposed faces of said first and second slats, and a second end (25), opposite to said first end, that engages in said first and second seats (7, 16).

The invention relates to a vertically movable gate with a gate panel comprising several gate panel segments, where two adjacent gate panel segments are each hingedly connected to one another by way of at least one hinge, and with a motorized drive which transmits a force for lifting and lowering the gate panel via at least one drive means to the gate panel, and a connection means for connecting the drive means to the gate panel. Gates of the type mentioned at the outset are improved according to the invention such that, though such a gate can be moved easily between an open and a closed position largely independent of the forces arising, it nevertheless provides a compact and simultaneously stable and fail-safe design in that several gate panel segments are each individually connected to the drive means.

A roller shutter may include a rotatable drum; a shutter curtain including a series of three or more elongate slats pivotally interlocked in a longitudinal-edge-to-longitudinal-edge arrangement and arranged parallel to the rotatable drum, wherein a first and second longitudinal end portions of each elongate slat may be respectively aligned to form a first side border and a second side border, respectively, of the shutter curtain, wherein the first and second longitudinal end portions of each elongate slat may be respectively provided with at least one eyelet-structure which protrudes therefrom, whereby a first and second rows of eyelet-structures are formed along the first and second side borders; and at least a first cord and a second cord respectively strung loosely through all eyelet-structures of respective row of eyelet-structures, and each cord may be configured to confine all eyelet-structures of the respective row of eyelet-structures within a length of each cord.

The present invention relates to a gate with a gate panel, comprising several gate panel sections which are hingedly coupled to each other by way of hinges, where a hinge comprises two hinge panels of adjacent gate panel sections, at least one elongate drive means which is connected to at least one gate panel section, and at least one guide means which is suitable to guide the gate panel during its motion. In order to optimize the gate with regard to its installation space, in particular in the width and depth direction, and to ensure simple and inexpensive yet at the same time still reliable operation of the gate, it is proposed to arrange the elongated drive means at least in sections received in the gate panel section.

A door, in particular a rolling door, comprising a door leaf that can be moved along a track including a deflecting portion between an open position, in which it at least partially exposes a wall opening, and a closed position, in which it at least partially closes the wall opening, which includes at least one bending region that is deformable during the door leaf movement along the deflecting portion and is made of a flexible base material such as polycarbonate, wherein a functional film is laminated onto at least one part of at least one bounding surface of at least one bending region.

A portal structure has an air seal device including an air sealing element movable between a lowered and a raised configuration. The portal structure has a compartment for storing the closure element, delimited by a front wall. A space is provided which communicates with the compartment and with the outer environment between the wall and the closure element. The air seal device includes first and second sealing members adapted to reach a facing position in which they adhere by magnetic attraction to close the space, one connected to the wall for supporting a ferromagnetic plate, the other consisting of a magnetic member fixed to the closure element. The first sealing member includes a base structure which can be fixed to said wall by first and second adjustable fasteners in a position corresponding to the position of the sealing member fixed to the surface of the closure element.

The invention relates to a roller shutter for opening and closing a doorway (12) having a door blade (11), the door blade (11) comprises several rigid shutter elements (13) which are hinged with each other, the shutter elements (13) are guided by side rails (18) at opposed sides of the doorway (12), wherein each shutter element (13) provides an end piece (19) at each horizontally spaced end of the shutter element (13) for spacing layers of rolled up shutter elements (13) apart from each other, each end piece (19) has at least one concave section (27) for coiling the end pieces (19) on a coiling device (14) and/or in layers on top of each other. For reducing the risk of weakening a connection between the end piece (19) and the shutter element (13), for reducing noise and/or vibrations during the opening and/or closing of the door way and/or to increase the stability of the roller shutter the roller shutter (10) is characterized in that at least some of the end pieces (19) having at least one plane gliding section (28), the plane gliding section (28) is arranged for interacting with a slide guide (36) of the side rail (18) for leading the end pieces (19) into and/or out of the side rails (18).