A flat-type ventilation door-window structure includes a frame (1), a first movable sash (2) and a second movable sash (3). The first movable sash (2) and/or the second movable sash (3) can slide up and down in an opening (11) of the frame (1). A first guide device (300) and a second guide device (400) being respectively provided between the first movable sash (2) or the second movable sash (3) and the frame (1). The first guide device (300) and the second guide device (400) can guide the first movable sash (2) or the second movable sash (3) to change the sliding path. The flat-type ventilation door-window structure can block outdoor sound, rain and air, and improve sound insulation, water tightness and air tightness.

An aircraft door mechanism includes an aircraft structure (14) delimiting an opening (24); an aircraft door (26) movable between a position closing off the opening (24) and a released position of the opening (24); and a guide system (28) for moving the door (26) between the closed off and released positions. The guide system (28) includes a main rail (46) that is fixed relative to the structure and a main carriage (48) mechanically connected to the door (26) and able to slide on the main rail (46) during the movement between said closed off and released positions. The main rail (46) is positioned between the door (26) and the structure during at least part of the movement of the door (26) between said closed off and released positions.

An aircraft door mechanism includes an aircraft structure (14) delimiting an opening (24); an aircraft door (26) movable between a position closing off the opening (24) and a released position of the opening (24); and a guide system (28) for moving the door (26) between the closed off and released positions. The guide system (28) includes a main rail (46) that is fixed relative to the structure and a main carriage (48) mechanically connected to the door (26) and able to slide on the main rail (46) during the movement between said closed off and released positions. The main rail (46) is positioned between the door (26) and the structure during at least part of the movement of the door (26) between said closed off and released positions.

A moving coil, constant force, curl spring window balance assembly for installation in a hung window assembly comprising a sash. The window balance assembly can include a carrier, a mounting bracket, a curl spring and a sash support bracket. The sash support bracket can be positioned intermediate the carrier and the mounting bracket. The sash support bracket can selectively engage at least one of the carrier or the mounting bracket. The sash support bracket is operable to supplement the holding force provided by the curl spring of the window balance assembly against the weight of the sash when the sash is in a raised position.

A system for reversibly providing a wall, comprising: a first panel comprising first track followers on each of opposite side edges of the first panel; a first pair of tracks adapted to receive the first track followers and that are generally vertical on opposite sides of a space, each comprising: a top at a point overhead, and a lower point part-way to the floor of the space; a second panel comprising: upper second track followers on sides of the second panel near a top edge of the second panel, and lower second track followers on sides of the second panel near a bottom edge of the second panel; wherein, as the first panel is lowered, the first track followers ride in one of the first pair of tracks until at least one first track follower reaches the bottom of the one of the first pair of tracks, thus allowing the first panel, when lowered, to form a first portion of the wall; a second panel comprising: upper second track followers on each of opposite side edges of the first panel proximate to a top edge of the second panel, lower second track followers on each of opposite side edges of the first panel proximate to a bottom edge of the second panel; a second pair of tracks that are generally vertical on opposite sides of the space to be divided and generally parallel to the first set of tracks, each comprising: a top at a point overhead, a junction where a spur track separates from the second track, a spur track at a point part-way to the floor that angles over from the second pair of tracks to a point below and in vertical alignment the first pair of tracks, a bottom at a point at or above the floor, wherein the lower second track follower interacts with the toggle switch, as the second panel is lowered, to move the toggle switch from a first position to a second position, and wherein the lower second track follower interact with the toggle switch, as the second panel is raised, to move the toggle switch from the second position to the first position; wherein the toggle switch, when in the second position, diverts the upper second track follower from the second pair of tracks into the spur; wherein the bottom of the second track is in vertical alignment with the first track; wherein, as the second panel is lowered, the lower second track followers reach the bottom of the second pair of tracks and the upper second track followers reach the bottom of the spur, thus allowing the second panel, when lowered, to form a second portion of the wall; and a toggle switch at the junction of the second track having a first position such that a track follower in the second track will continue past the junction remaining in the second track and will move the toggle to

A side structure for a passenger vehicle has a side element, which at least partially delimits a lateral window opening, and a transparent side window, which is movable relative to the side element between a closed position closing at least a partial region of the window opening and at least one open position opening up the partial region of the window opening. The side structure has a strut which extends in the longitudinal direction of the vehicle and on which the side window is held via a hinge device so as to be movable relative to the side element and relative to the strut in such a manner that the side window is movable outwards in the transverse direction of the vehicle and downwards in the vertical direction of the vehicle from the closed position into the open position.

A door opening and closing apparatus includes: a body defining an opening and an interior space, the opening being open toward the outside of a vehicle body and the interior space defined inside the vehicle body so as to be connected to the opening; a door configured to open and close the opening; a guide part disposed in the interior space and guiding the door such that the door moves in a first direction and a direction opposite to the first direction, the first direction being a direction from the outside of the vehicle body to the inside of the vehicle body; and a transport part disposed in the interior space and that moves the door in a second direction and a direction opposite to the second direction.

A side structure for a passenger vehicle has a side element, which at least partially delimits a lateral window opening, and a transparent side window, which is movable relative to the side element between a closed position closing at least a partial region of the window opening and at least one open position opening up the partial region of the window opening. The side structure has a strut which extends in the longitudinal direction of the vehicle and on which the side window is held via a hinge device so as to be movable relative to the side element and relative to the strut in such a manner that the side window is movable outwards in the transverse direction of the vehicle and downwards in the vertical direction of the vehicle from the closed position into the open position.

A track of a vertically stacking door includes a vertical track, a first curved track portion, a second curved track portion, a first horizontal track portion coupled to the first curved track portion, and a second horizontal track portion coupled to the second curved track portion. The first curved track portion and the second curved track portion are split off from the vertical track and the first curved track portion and the second curved track portion each comprises multiple radii of curvature.

A track of a vertically stacking door includes a vertical track, a first curved track portion, a second curved track portion, a first horizontal track portion coupled to the first curved track portion, and a second horizontal track portion coupled to the second curved track portion. The first curved track portion and the second curved track portion are split off from the vertical track and the first curved track portion and the second curved track portion each comprises multiple radii of curvature.