In a preferred embodiment, a telescoping panel door for an aircraft compartment includes a first panel configured for hinged connection to a surface of a door frame, a second panel, and a linkage fixing a distance that the second panel can extend from the door frame, where the second panel is configured for connection to the door frame via the linkage. The door operates such that, in a closed position, the second panel is extended from an interior of the first panel, the first and second panels cooperate to completely cover an opening defined by the door frame, and the linkage is generally parallel to the plane defined by the door frame. In an open position, the second panel is retracted into the interior of the first panel by operation of the linkage and the first and second panels are nested to reduce a distanced spanned by the panels.

The present invention relates to a gate. More specifically, the present invention relates to a gate having at least one arm, wherein the at least one arm is configured to extend and retract. When the at least one arm is substantially extended, the at least one arm substantially prevents access through the gate. When the at least one arm is substantially retracted, the at least one arm no longer substantially prevents access through the gate.

A door that can be adapted to different spans is provided, structured in a first element (1) and at least a second element (2) attached in a coplanar manner to the former, including both (sets of openings (31) in one and a number of shafts/rod (32) in the other) for permitting a linear nearing/distancing movement between both elements (1, 2), and means (screws) for holding the elements to one another in any position. On at least one of their edges, the outer surfaces of one of the elements (1, 2) extend into respective superficial tabs (51, 52) between which a longitudinal recess (50) is defined, in which the facing edge (60) of the other element (1, 2) is accommodated, such that said edge (60) is guided and obscured from vision, providing continuity to the surface of the door.

An uppermost cover member of a telescopic cover is fixed to a movable member (a saddle or a table), whereas a lowermost cover member of the telescopic cover is fixed to a stationary member (a pedestal or the saddle) of a machine tool, the stationary member being stopped with respect to a direction of movement of at least the movable member. Attached members, which project outwardly along the direction of movement from the telescopic cover, and which are attached by fastening members to the stationary member, are provided on the cover member. The telescopic cover is provided with a skirt, which is capable of sliding along the direction of movement with respect to the cover member, and which covers the attached members.

The panel system includes lower and upper guides and at least one panel located between and connected to them, to move the panel on the lower guide. The panel system includes a hinge element fixed to the panel and allows the panel to be opened by turning essentially around a rotation axis. The panel system further includes at least two locking housings positioned successively on the upper guide. The locking housings include two opposite locking recesses, defining a circle with radius R3 and between which remains a passage with width P2. The hinge element can travel from one locking housing to another through the passage. The distance between the locking housings is distance P1, configured to be less than two times radius R3. The hinge element may include two locking cams and in addition a guiding edge remaining between them. The panel system locking arrangement includes the hinge element.

A gate comprises a spring-loaded hinge arrangement defining a rotational axis. A gate structure having a first support arm connected to a first end of the hinge arrangement is also provided. The gate structure is rotatable about the rotational axis. A spring-loaded hinge arrangement includes an outer hinge tube fixedly connectable to an adjacent structure and an inner hinge tube received in the outer hinge tube. The inner hinge tube has a first portion and a second portion movable with respect to each other, the second portion of the inner hinge tube being fixed with respect to the outer hinge tube and the first portion of the inner hinge tube being fixed with respect to the support arm.

Improvements to movable closure systems which aid installability and reliability of said systems can include wheels running along the top and bottom of individual slidable elements, the wheels oriented horizontally and disposed within a track configured for receiving the horizontal wheels. The horizontal wheels reduce the vertical profile of the track-engaging portions of the slidable elements, enabling more of the slidable element to be used for glass or other aesthetically-preferable transparent materials. A track leveling system enables installers to more easily deploy and properly tune the system between floors and casings which are not perfectly flush. A compression jamb permits closure of the system via slidable elements pressing into the jamb to deflect it in order to better seal the closure comprised of the individual slidable elements. A durable hinge mechanism permits the sliding elements to rotate in order to stack the sliding elements at one end of the system.

A balance system used with a door of a cupboard comprises a transmission shaft, a first pulley on the transmission shaft, and a balance component. The first pulley is connected to a door belt, one end of the door belt is secured to the first pulley, and the other end of the belt is connected to the door. The balance component comprises a balancing member, a balancing belt and a second pulley on the transmission shaft. One end of the balancing belt is connected to the second pulley, and the other end of the balancing belt is connected to the balancing member, such that the balancing member is hung on the second pulley. The first pulley and the second pulley rotate synchronously, and the door belt and the balancing belt are wound oppositely. With the balance system, a small driving force can open/close the door.

Improvements to movable closure systems which aid installability and reliability of said systems can include wheels running along the top and bottom of individual slidable elements, the wheels oriented horizontally and disposed within a track configured for receiving the horizontal wheels. The horizontal wheels reduce the vertical profile of the track-engaging portions of the slidable elements, enabling more of the slidable element to be used for glass or other aesthetically-preferable transparent materials. A track leveling system enables installers to more easily deploy and properly tune the system between floors and casings which are not perfectly flush. A compression jamb permits closure of the system via slidable elements pressing into the jamb to deflect it in order to better seal the closure comprised of the individual slidable elements. A durable hinge mechanism permits the sliding elements to rotate in order to stack the sliding elements at one end of the system.

A combination door assembly includes a frame that may be coupled to a wall of a building. A door is hingedly coupled to the frame such that the door is positionable between an open position and a closed position. The door comprises a first half that is slidably coupled to a second half. The second half is positionable in an open position when the door is positioned in the closed position. Thus, the second half is configured to allow egress and entry to the building when the door is in the closed position.