In a high-security sliding-door apparatus for closing and opening a corridor, the door having (a) a door frame having a track and a bi-directional effector, (b) a carriage having track-engaging rollers, (c) a slide plate slidably secured to the carriage and driven by the effector, and (d) a controller controlling slide-plate movement and enabling the door to be continuously closed but not locked, the improvement comprising centering apparatus for relative positioning of the slide plate and carriage, the centering apparatus including (1) a yoke attached to the slide plate at a yoke pivot and having a yoke cam surface thereabove, (2) a carriage-attached yoke-cam follower, and (3) springs having proximal ends attached to the yoke spaced above the yoke pivot and distal ends each attached to the carriage at points offset from the yoke pivot in opposite lateral directions, centering the door with the slide plate when unlocked.

A large diameter portion is provided on one side of a closing side drum in an axial direction, a small diameter portion having a diameter gradually decreasing from the large diameter portion to the other side of the closing side drum is provided on the other side of the closing side drum, a partition wall disposed between adjacent small diameter cable grooves in the axial direction of the closing side drum to prevent a closing side cable from slipping out of the small diameter cable grooves is provided in the small diameter portion. Accordingly, the thick partition wall provided in the small diameter portion can reliably prevent the closing side cable from slipping out (derailing) from the small diameter cable grooves even when a winding position of the closing side cable on the closing side drum is changed and transferred from the large diameter portion to the small diameter portion.

Provided is a tower of a wind turbine, having a hollow inner space and a door for opening and closing an aperture into the inner space, wherein the door is a sliding door, which is slidingly arranged on a tower aperture member attached to the tower, and which sliding door is at least partially sealed by a seal to the tower aperture member at least when the door is in the closed position.

A sliding door assembly includes a door frame with a top trim member, a bottom sill, and side jambs connected between the top trim member and the bottom sill, and a primary sliding panel secured in the door frame. The top trim member includes a track configured to support a weight of the primary sliding panel and prevent the primary sliding panel from coming off the track. Other features include an interlock mechanism to limit relative movement using multiple sliding doors and a brake mechanism to secure the doors in position when the door handle is released. A drop window includes features to accommodate for manufacturing tolerances and box frame assemblies that are out of square.

A movable wall panel system is disclosed. The movable wall panel system may include at least one monitoring system to monitor at least one area adjacent the movable wall panel system. The movable wall panel system may include a touch screen as part of an operator interface.

The invention relates to a sliding door fitting comprising a carriage, which is guided on a guide rail and which is connected to a housing of a retraction device in an articulated manner, wherein the retraction device has at least one, preferably two driver elements, which can be moved along guide tracks and which are spaced apart, the one or more driver elements being preloaded into a retraction position by means of at least one force accumulator, wherein the housing of the retraction device is preloaded in a direction rotation relative to the carriage.

Provided is a sliding door device which is capable of retracting a sliding door diagonally. Such a sliding door device 1 includes rails 7a and 7b for guiding the sliding door 2 to move in a retracting direction A from an open position to a closed position with respect to a main body 3 and guiding the sliding door 2 to move forward or backward in a front view of the sliding door 2 until reaching the closed position, a rod-shaped trigger 8 provided on one of the main body 3 and the sliding door 2, and a retracting device 9′ provided on the other of the main body 3 and the sliding door 2 and retracting the trigger 8 while sliding in an axial direction D of the trigger 8 so that the sliding door 2 can move forward or backward.

Systems and methods for providing a drop seal assembly which is concealed within an opening in the bottom of a sliding door panel of a top-hanging sliding door. The drop seal assembly may include bottom guide which defines a downward facing elongated slot or track which receives a sill guide therein. The drop seal assembly also includes a drop down acoustic seal which automatically drops down to contact the floor surface below the door panel when the door panel is moved from an open position into a closed position. The distance that the seal drops down upon closing of the door panel may be selectively adjustable to accommodate variances in the air gap between the door bottom and the floor surface due to particular installation conditions. A concealed magnetic bottom seal activator may be used to provide self-adjusting activation of the door bottom seal assembly using two opposing magnets.

The present invention discloses a shower door sliding mechanism for soft positioning, including a track component disposed in a fastening manner, a movable door piece, a pulley component, and a flexible closer component movably disposed in the track component. A longitudinal passage in the track component is surrounded by an upper wall, a lower wall, a front wall, and a rear wall, the longitudinal passage includes a positioning component receiving groove and a sliding groove in which the flexible closer component and the pulley component can move, and the lower wall has a longitudinal opening and a sliding surface supporting the pulley component. A glass clamp component is disposed at the top of the movable door piece, and the top of the glass clamp component is connected to a threaded hole in the pulley component by using an adjusting screw.

A supporting device (MC) is described to slidingly support, and linearly move along an axis (X), an object such as e.g. a leaf.

A magnetic return force generated by the cooperation of a magnetic flux generator (54, 56) and an element (10) reactive to the magnetic field, develops.

The element is able to slide relative to the axis (X) during the movement of the object, and has a cross-section (62) which, seen in a plane orthogonal to the axis (X), has a width that varies along the length of the first element (10) parallelly to said axis (X).