A window assembly includes a first polarizing windowpane, and a second polarizing windowpane. The first and second polarizing windowpanes are each independently moveable between a first position that blocks an opening to an interior of a vehicle, and a second position that does not block the opening. A window operating method includes moving first and second polarizing windowpanes of a window assembly from respective first positions that block an opening to an interior of a vehicle to respective second positions that do not block the opening.

Track guards for use with overhead doors at loading docks, residential locations, and other facilities are described herein. In some embodiments, the track guards described herein can be two-part assemblies having a first part (e.g., a base member) that mounts directly to a door jamb, and a second part (e.g., an outer member or cap) that can be adjustably positioned relative to a door guide rail and then fixedly attached to the base member. In some embodiments, the outer member can include recesses or pockets, elongate edge features, and/or other shapes that are configured to clip onto or otherwise cover a portion of the guide rail to provide support and/or prevent, or at least reduce the likelihood of, damage from operational loads and/or impacts to the guide rail. Additionally, in some embodiments the track guards described herein can include various types of attachment features so that lights, reflective elements, motion sensors, fans, and/or other devices can be quickly and easily mounted to the track guard at various positions near the door opening to facilitate operations at the loading dock.

This disclosure relates generally to protecting roller devices and assemblies that prevent damage caused by doors, such as garage doors. The protecting roller devices can include two separable portions each having a wheel at one end, with a connection portion therebetween. In some embodiments, the connecting portion passes through a hollow axle of a hinge to connect the separable portions. In some other embodiments, the protecting roller device can comprise a middle portion that can be connected to the hinge, such as using a fastener. The highest point of the protecting roller device can be above the highest point of the hinge, such that the protecting roller device will encounter an obstruction such as an automobile instead of the hinge. The protecting roller device can be made of a material designed to prevent or minimize damage to the obstruction.

A door control device includes a communicator configured to receive gear position information, obstacle information, and wind speed information, and a processor. The processor is configured to determine at least two of a gear position, presence or absence of an obstacle, or a wind speed based on the gear position information, the obstacle information, and the wind speed information, and, based on a determination that (i) the gear position is at parking and the obstacle exists or (ii) the gear position is at parking and the wind speed is greater than or equal to a reference wind speed, control a safety device of a door to secure a position of the door.

A cover for attachment to a header of a door system. The cover may have a motor compartment, a pulley compartment, and a first window. The motor compartment may be configured to at least partially enclose a motor and the pulley compartment may be configured to at least partially enclose a pulley, where the motor is operably attached to the pulley to drive a drive member. The first window may be configured to receive a portion of the drive member extending through an exterior wall of the cover.

A vehicle may include a vehicle detector configured to detect an obstacle and a condition of the inside and the outside of the vehicle; and a controller, when a front obstacle is detected by the vehicle detector, configured to determine a required braking distance or a time to collision (TTC) with respect to the obstacle, configured to determine whether a door side collision with the obstacle is estimated, when a collision with the obstacle is estimated according to the result of the determination, and configured to open a door in emergency or convert the door into a manual opening mode when the door side collision is estimated.

A vehicle having a door slidably mounted on a shell. The vehicle includes at least one assistance device, comprising both a winder carrying a strap and a receptacle, the winder including a brake for braking unwinding of the strap from the winder, one of the winder and receptacle being fastened to the shell and one of the winder and receptacle being fastened to the door, the strap carrying a latchplate suitable for being reversibly attached to the receptacle.

A system and method are provided for detecting blockages during an automatic adjustment of a movable vehicle part in a motor vehicle equipped with an electric motor drive and an electronic control unit. The drive current as well as the movement speed of the drive are detected by the electronic control unit. When the movement speed increases above the normal level, the control unit suppresses the detection of a blockage event if a drive current increase required for the movement speed increase cannot be ascertained.

A door closer, comprising a door closer housing mounted to one of a door frame or a door surface and a linkage arm for pivoting the door between open and closed positions. The linkage arm has a first and second end, the first end mounted to the other of the door frame or the door surface. The door closer includes a rotatable connector between the linkage arm and the door closer housing, the linkage arm second end engaging with the rotatable connector. The connector has a rotatable body portion and head protrusion substantially secured in a female receptor to transmit rotation about a longitudinal axis of the connector. One or both of the head protrusion or female receptor has a curved profile and is further movable with respect to the head protrusion to permit limited rotational misalignment of the linkage arm on any axis perpendicular to the connector longitudinal axis.

The system includes a series of operable louvers mounted on a four-sided frame and connected on each side to the operating mechanism that allows for easy opening and closing of the louvers. Every part of the system that is exposing to the exterior of the building is separated from the interior part of the system by a low heat conductivity material as a thermal barrier. Each operable louver is composing of a four-sided main frame, two panes of glass (inner and outer) and a coupling mechanism on each side that connects to the operating mechanism. The main frame acts as the thermal break as well as a system that absorbs the energy created when an outside object impacts the window from the outside. The system incorporates sealing devices between all moving parts to eliminate water and air infiltration. The operating system allows for easy opening and closing of the window by rotating each louver with the crank mechanism assisted by springs.