Abstract: The preset invention relates to a gate with a crash-down prevention mechanism, comprising a gate panel which can be opened and closed by the rotation of a gate panel drive, a motor which is coupled to the gate panel drive, and a braking assembly with which opening and/or closing the gate panel can be decelerated, and a first measuring device for determining at least one movement parameter of the gate panel. In order to improve such a gate to the extent that a crash down of the gate can be reliably detected, and a braking assembly which brakes the gate quickly and avoids damage to the gate is triggered just as reliably, it is proposed to provide a second measuring device for determining at least one movement parameter of the motor, and a comparator which compares the measured movement parameters of the gate panel and the motor and triggers the braking assembly when the measured movement parameters of the gate panel and the motor fall outside of a defined relationship to each other.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

Abstract: The preset invention relates to a gate with a crash-down prevention mechanism, comprising a gate panel which can be opened and closed by the rotation of a gate panel drive, a motor which is coupled to the gate panel drive, and a braking assembly with which opening and/or closing the gate panel can be decelerated, and a first measuring device for determining at least one movement parameter of the gate panel. In order to improve such a gate to the extent that a crash down of the gate can be reliably detected, and a braking assembly which brakes the gate quickly and avoids damage to the gate is triggered just as reliably, it is proposed to provide a second measuring device for determining at least one movement parameter of the motor, and a comparator which compares the measured movement parameters of the gate panel and the motor and triggers the braking assembly when the measured movement parameters of the gate panel and the motor fall outside of a defined relationship to each other.

Abstract: The present invention relates to a gate with an emergency opening device, comprising a gate panel which is movable between an open and a closed position, a primary motor which drives the gate panel by way of a gate panel drive, and an auxiliary motor which is connected to an emergency power supply and is adapted to drive the gate panel. In order to improve such a gate to the extent that the emergency opening device is reliably usable to open the gate in the event of different types of failure of the main drive motor of the gate, it is proposed that the auxiliary motor be coupled by way of an auxiliary motor coupling to the gate panel and that the emergency power supply comprise an energy storage.

Abstract: The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

Abstract: The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

Abstract: 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.

Abstract: The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

Abstract: The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

Abstract: 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.

Abstract: The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

Abstract: The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

Abstract: The present invention provides a drive unit for high-speed lifting gates in which a drive motor is provided for moving the gate leaf and can be down-regulated up to zero rotational speed. The drive motor is actuated via a control unit. Following the occurrence of an emergency stop condition, the drive motor is actuated such that its rotational speed is reduced to zero in a controlled manner and the gate leaf is thereby braked in a motor-driven manner. When the gate leaf is at a standstill, the gate leaf is held by the energized drive motor at zero rotational speed at the holding position. It is with an emergency power supply ensured that, also in the event of a power failure, motor-driven deceleration of the gate leaf and an emergency opening can occur.

Abstract: The present invention provides a drive unit for high-speed lifting gates in which a drive motor is provided for moving the gate leaf and can be down-regulated up to zero rotational speed. The drive motor is actuated via a control unit. Following the occurrence of an emergency stop condition, the drive motor is actuated such that its rotational speed is reduced to zero in a controlled manner and the gate leaf is thereby braked in a motor-driven manner. When the gate leaf is at a standstill, the gate leaf is held by the energized drive motor at zero rotational speed at the holding position. It is with an emergency power supply ensured that, also in the event of a power failure, motor-driven deceleration of the gate leaf and an emergency opening can occur.

Abstract: The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.

Abstract: A high-speed industrial roller door includes a door leaf that is guided in lateral guides and a drive that acts on the door leaf to displace the latter from an open position into a closed position and vice versa. The door leaf is held in the open position so that adjacent areas of the door leaf are not in contact with one another, in a spiral section of the lateral guides located in the vicinity of the door lintel. The roller door also includes a weight compensation device. The drive has two extension arms that are coupled via joints to the lintel end of the door leaf, said arms being situated at a distance from one another across the door width and being synchronously pivoted about a pivoting axis in a central area of the spiral section. The distance between the coupling points of the extension arms on the door leaf and the pivoting axis of the extension arms can be varied.

Abstract: A weight compensation device for a lifting door, includes a spring element and a tensile element, which can be wound onto or unwound from a winding device in such a way that the spring element achieves its greatest pre-tension when the door leaf is in the closed position and is essentially tension-free when the door leaf is in the open position. The tensile element is narrower at the end facing the winding device than at the end facing the spring element and the winding device includes a guide device, which is used to wind the tensile element in such a way that the wound layers lie adjacent to one another without making contact. To achieve this, the guide faces around the perimeter of the guide device have a continuously increasing radius in the winding direction. This enables the provision of a weight compensation device that achieves the torques required for effective weight compensation by means of a simple construction.

Abstract: The invention relates to a weight compensation device (6) for a lifting door (1), comprising a spring element (61) and a tensile element (62), which can be wound onto or unwound from a winding device in such a way that the spring element (61) achieves its greatest pre-tension when the door leaf (2) is in the closed position and is essentially tension-free when the door leaf (2) is in the open position. According to the invention, the tensile element (62) is narrower at the end facing the winding device than at the end facing the spring element (61) and the winding device comprises a guide device (63), which is used to wind the tensile element (62) in such a way that the wound layers lie adjacent to one another without making contact. To achieve this, the guide faces around the perimeter of the guide device (63) have a continuously increasing radius in the winding direction.