A novel electric strut is disclosed, including an electric strut casing in which a supporting pipe casing is sleeved. A supporting pipe is installed in the supporting pipe casing, a screw rod has a front end connected with the rear end of the supporting pipe, a front end of the supporting pipe is connected with a ball-and-socket joint, a special-shaped conduit is sleeved outside the screw rod and located in the electric strut casing, a spring is sleeved on surfaces of the supporting pipe and the special-shaped conduit, an adjustable damper is mounted at a tail portion of the screw rod, a motor is mounted in the electric strut casing at a rear end of the screw rod and connected with the screw rod, a rear end of the electric strut casing is sealed through an integrated motor joint integrally fixed to a tail portion of the motor.

A sliding door or window system includes a track. The track includes an outer housing; an inner housing within the outer housing; a guide body provided with the inner housing and configured to guide a sliding movement of a door or a window; and at least one adjustable body that is provided on the outer housing, at least partially within the inner housing, and fixed with respect to the inner housing in a vertical direction, the at least one adjustable body configured to change a height of the inner housing with respect to the outer housing by rotating, such as to change a height of the guide body.

System for detecting the movement conditions of the leaf (2) closing a barrier, this leaf being able to occlude a delimited opening or passage and in which the leaf itself is moved by a motor (5) whose rotation shaft (R1) is associated with a motion transmission mechanism to this leaf. On said motor is present a first device for measuring the rotation of said rotation shaft (R1), and at least a second measuring device is associated with at least a second rotation shaft (R2), said second rotation shaft being connected to the first shaft by means of a reduction gear (8), whose reduction ratio is non-integer.

Systems and methods are provided for protecting a door system from damage by a back electromotive force (EMF) voltage generated when a door coupled to a door actuator is manually closed. The door system may include a driver configured to drive the door actuator to move the door, and a back EMF protection circuit. The back EMF protection circuit detects a back EMF voltage generated by the door actuator when the door is moved, and determines whether the back EMF voltage exceeds an overvoltage threshold. In response to determining that the back EMF voltage exceeds the overvoltage threshold, the back EMF protection circuit causes the driver to transition to an enabled state to short the back EMF voltage to ground.

A device for identifying and monitoring the state of an arrangement to be monitored having an openable and closable wing element is provided. The device has a housing, which has a housing base securable on or connected in one piece to the arrangement and a second housing part attachable to and removable from the housing base. The device is also provided with an identification marker, the housing base has a first identification marker for the arrangement to be monitored having an openable and closable wing element, and the second housing part has at least one second identification marker identifying the second housing part.

A novel electric strut is disclosed, including an electric strut casing in which a supporting pipe casing is sleeved. A supporting pipe is installed in the supporting pipe casing, a screw rod has a front end connected with the rear end of the supporting pipe, a front end of the supporting pipe is connected with a ball-and-socket joint, a special-shaped conduit is sleeved outside the screw rod and located in the electric strut casing, a spring is sleeved on surfaces of the supporting pipe and the special-shaped conduit, an adjustable damper is mounted at a tail portion of the screw rod, a motor is mounted in the electric strut casing at a rear end of the screw rod and connected with the screw rod, a rear end of the electric strut casing is sealed through an integrated motor joint integrally fixed to a tail portion of the motor.

A method providing maintenance information on a door system for a vehicle that includes reading detected process data with respect to a movement process of a door of the door system, the process data representing a current behavior of at least one drive element of the door system during the movement process, correlating the process data to a position curve of positions of the door during the movement process to generate a characteristic line of the current behavior of the at least one drive element at the positions of the door, comparing the characteristic line with a reference characteristic line which represents a target behavior of the at least one drive element at positions of the door to ascertain a deviation of the characteristic line from the reference characteristic line, and assigning the deviation to a sub-region of the position curve, which is divided into a plurality of sub-regions based on the involvement of different movement elements of the door system in different phases of the movement process of the door to determine the maintenance information.

An arrangement for guiding a door on a furniture wall, includes a guide to be secured on the furniture wall, a carrier on which the door is to be secured, and a guide body. The carrier is/can be connected to the guide body such that they are coupled for movement, and via which the carrier is/can be moveably mounted on the guide. A securing device is provided comprising a mounting body that is/can be connected to the carrier and/or to the guide body, a second mounting body that is/can be connected to the guide and/or to the furniture wall, and a securing element. The securing element fixes the two mounting bodies in a secure position relative to one another and releases the same in a release position, such that the two mounting bodies can be moved relative to one another.

Disclosed herein is a drive arrangement for motor-operated adjustment of a closure element in a motor vehicle having at least one drive with a drive motor, and a drive controller. The closure element can be driven in the motor-operated adjustment mode by the drive motor in the closing direction and in the opening direction between a closed and an open position. The drive is non-self-locking and has a sensor, in particular a Hall sensor, for sensing the drive movement. The drive controller monitors the sensor signals for a fault state, and when a fault state is sensed initiates an emergency braking and/or stop mode. The drive arrangement comprises two drives each with a sensor for determining the respective drive movement. To detect drive-fault-induced slamming shut of the closure element, the drive controller correlates the sensor signals of the two sensors, in particular compares said sensor signals.

A door closer is provided. The door closer includes a first connecting plate and a second connecting plate. The first connecting plate is connectable to an external door frame, the second connecting plate is connectable to a door body connecting portion. Connecting rod assemblies and return springs are mounted in the door body connecting portion. One end of the connecting rod assembly passes through the second connecting plate and is hinged to the first connecting plate. When a door is opened, an external door body drives the first connecting plate and the second connecting plate to overturn, and after the connecting rod assembly pulls the door body connecting portion, the return spring is compressed. When the door is closed, the return spring pulls the door body to close automatically.