A vehicle includes a cabin and a track assembly. The track assembly is coupled to a portion of the cabin. The track assembly includes a rail assembly. The rail assembly defines an interior aperture. The interior aperture is inaccessible from a top side, a first lateral side, and a second lateral side of the rail assembly. The rail assembly defines a first external channel in the first lateral side and a second external channel in the second lateral side. The first and second external channels receive a carriage power conductor and a carriage data conductor, respectively.

A sliding apparatus for a sliding door comprises: a front top roller part including an upper outer bracket and an upper inner bracket; a front bottom roller part including a lower outer bracket and a lower inner bracket which are fitted and fixed to both lower ends of the front door while being connected to each other by a lower connecting bar, and are formed to slide in both lateral directions after moving forward; a rear roller part including rear outer brackets and rear inner brackets which are formed at both upper ends and both lower ends of a rear door formed on one side of the front door, so as to slide the rear door; a front rail part including guide rails which are formed on the upper and lower end surfaces of a rear door frame and the upper and lower surfaces of the rear inner bracket.

Methods and apparatus to wirelessly interlock doors are disclosed. A door system includes a user interface to receive interlock configuration data input from a user, the interlock configuration data to define an interlock condition to be satisfied before a first door is to undergo an operation, the interlock condition associated with a current state of a second door. The door system includes a first wireless transceiver to receive a signal from a second wireless transceiver associated with a second door. The method includes a door operation controller to at least one of (1) implement the operation of the first door in response to a request when the current state of the second door satisfies the interlock condition, (2) ignore the request, or (3) not execute the operation of the first door in response to the request when the current state of the second door does not satisfy the interlock condition.

A permanent magnet linear motor. The permanent magnet linear motor including a primary comprising a magnetically permeable core having a first face surface on a first side of the core a plurality of teeth forming a plurality of slots on the first side, and a plurality of multi-phase windings wound to have segments thereof in the slots forming a plurality of magnetic poles at each of the first face surfaces; a permanent magnet pair of opposing polarity configured to produce magnetic flux and cause the primary to exert a force on the secondary when the plurality of multiphase windings are excited by a multiphase source; and a passive ferromagnetic secondary adjacent to but spaced from the first face surface, the passive ferromagnetic secondary being moveable with respect to the primary.

A retractable bathroom door includes a fixed frame, a mobile frame, a first pull string and a foldable portion. The mobile frame is perpendicular to the upper frame portion of the fixed frame and horizontally moves in a frame range thereof. A frame portion at one side of the mobile frame has a first hollow structure. A first upper pulley and a first lower pulley are respectively disposed at a top end and a bottom end of the first hollow structure. The first pull string has two ends which are wound around the first upper pulley and the first lower pulley in a crossover manner. An upper rail and a lower rail are respectively disposed on the upper frame portion and the lower frame portion of the fixed frame. An upper strip and a lower strip are respectively disposed on the upper rail and the lower rail.

The present invention relates to a door operator system and a method performed in a door operator system for moving at least one door leaf between a closed and an open position, comprising a door operator and a supervise unit, wherein the door operator comprise a drive unit adapted to be connected to and to move the at least one door leaf between the open and closed position, at least a first presence sensor connected to a control unit and configured to monitor at least an risk area and to send presence data associated with that an object is detected in the risk area to the control unit, at least a first and a second activation sensor connected to the control unit, wherein the first activation sensor is configured to monitor at least a first activation area at an outer side of the door leaf, the second activation sensor is configured to monitor at least a second activation area at an inner side of the door leaf, and the first and second activation sensors are arranged to send activation data to the control unit associated with that an object is detected in the first and/or second activation area, the control unit is connected to the drive unit and arranged to control the movement of the drive unit at least based on the received activation data and presence data, and wherein the supervise unit is connected to and adapted to receive activation data from the at least first and second activation sensors and presence data from the at least first presence sensor and configured to identify a conflicting data in a sequence of activation data and presence data.

Methods and apparatus to wirelessly interlock doors are disclosed. A door system includes a user interface to receive interlock configuration data input from a user, the interlock configuration data to define an interlock condition to be satisfied before a first door is to undergo an operation, the interlock condition associated with a current state of a second door. The door system includes a first wireless transceiver to receive a signal from a second wireless transceiver associated with a second door. The method includes a door operation controller to at least one of (1) implement the operation of the first door in response to a request when the current state of the second door satisfies the interlock condition, (2) ignore the request, or (3) not execute the operation of the first door in response to the request when the current state of the second door does not satisfy the interlock condition.

A glass panel system comprising an upper and lower guide track and at least two adjacent glass panels which are movable along the lower and upper guide tracks. The lower guide track is configured to support at least two glass panels. The upper guide track comprises two opposite side walls, an elongated groove and a free space formed between the two side walls. One of the glass panels leans against both the side walls by one guide element and against one of the two side walls and against another glass panel by another guide element. One of the glass panels leans, on one hand, against one of the two side walls and against another glass panel by one guide element and, on the other hand, against the other side wall and against another glass panel by another guide element. The guide elements are arranged in the free space.

A movement device for the sliding movement of furniture and wardrobe doors having inner and outer doors which slide along parallel tracks/guides. The movement device includes inner and outer pairs of carriages each having a roller. The carriages are fixed to the inner front of each door. A plate directly attaches each inner carriage to the inner door. A frame with an inverted U cross-section attaches each outer carriage to the outer door. Air pistons are fixed proximate the ends of the guides, along which the rollers of the carriages slide for the cushioned stop at the end stroke of moving the carriages when opening and closing the doors. The mounting device includes a support member housing a second piston which is surmounted by an elastic clamp. The clamp selectively interfaces with an aligned wedge extending from a carriage from the other door to prevent abutment between door handles.

A door control device includes: a speed control unit configured to perform speed control of an electric motor that drives a door; a speed detection unit configured to detect a speed of the door; and an obstruction detection unit configured to detect obstruction between the door and a door pocket, upon a value of the speed of the door detected by the speed detection unit decreasing by a first predetermined value or more with respect to a speed command value in the speed control during a door opening operation of the door.