초록 ▼

A hatch-actuating mechanism, particularly for aircraft landing gear. The mechanism includes a lateral closing panel (1) and a secondary closing panel (4) articulated to one another. A lateral pivoting fitting (5) is joined to the lateral panel (1) and pivots about a fixed point on the structure (7).

A hatch-actuating mechanism, particularly for aircraft landing gear. The mechanism includes a lateral closing panel (1) and a secondary closing panel (4) articulated to one another. A lateral pivoting fitting (5) is joined to the lateral panel (1) and pivots about a fixed point on the structure (7). A secondary pivoting fitting (8) is joined to the secondary panel (4). A lateral actuating cylinder (10) controls the movement of the lateral panel. An intermediate actuating cylinder controls the movement of the secondary panel, the intermediate actuating cylinder (13) being actuatable independently from the lateral actuating cylinder (10).

대표청구항 ▼

The invention claimed is: 1. A hatch-actuating mechanism, for an aircraft landing gear, comprising a lateral closing panel dimensioned to cover, in hatch-closed position, a first lateral area of an access opening to an interior space, leaving free a first strip neighboring said first lateral area;

The invention claimed is: 1. A hatch-actuating mechanism, for an aircraft landing gear, comprising a lateral closing panel dimensioned to cover, in hatch-closed position, a first lateral area of an access opening to an interior space, leaving free a first strip neighboring said first lateral area; a secondary closing panel dimensioned to cover, in hatch-closed position, at least part of the first strip, which is not covered by the lateral panel; a lateral pivoting fitting rotatably connected via a first lateral articulation to a first fixed structure which is located laterally in said interior space; a secondary pivoting fitting to which said secondary panel is connected at the bottom; the secondary pivoting fitting being rotatably connected to the lateral pivoting fitting via a first intermediate articulation; lateral actuating means selected from the group consisting of a hydraulic actuating cylinder and a pneumatic actuating cylinder, rotatably connected by its first end part to the first fixed structure via a second lateral articulation, and rotatably connected by its second end part to the lateral pivoting fitting via a second intermediate articulation, the second intermediate articulation being arranged in a position between the first lateral articulation and the first intermediate articulation such that the actuation of said lateral actuating cylinder tilts the lateral pivoting fitting with the lateral panel from a closed position in which the lateral panel covers said first lateral area, to an open position in which said lateral panel does not cover said first lateral area; intermediate actuating means selected from the group consisting of a hydraulic actuating cylinder and a pneumatic actuating cylinder, rotatably connected by its first end part to the lateral pivoting fitting via a third intermediate articulation in a position between said first lateral articulation and said first intermediate articulation, and a second end part rotatably connected to the secondary pivoting fitting via a fourth intermediate articulation; in such a manner that it is possible to keep the secondary panel in an inward folded position while the hatch is closed only by the lateral closing panel, and tilt the secondary pivoting fitting with the secondary panel from a folded position in which they are tilted toward the lateral pivoting fitting and said secondary panel does not cover said first strip, and a unfolded position in which they are tilted in a direction opposite said lateral pivoting fitting, so that, when the lateral panel is in the closed position, the secondary panel forms a joint exterior surface with said lateral panel and covers said first strip at least partially. 2. A mechanism according to claim 1, wherein it comprises an additional exterior lateral closing panel dimensioned to cover, in hatch-closed position, a second lateral area of said access opening, opposite said first lateral area and being neighboring said first strip, at least one additional lateral pivoting fitting to which said additional lateral panel is attached at the bottom, being couplable by means of additional lateral means of articulation to a second fixed structure which is located laterally in said interior space in a crosswise position opposite to the position of said first fixed structure, at least one additional lateral actuating cylinder, hydraulic or pneumatic, couplable by its first end part to a first additional lateral articulation point on the second fixed structure, and coupled by its second end part to an additional intermediate articulation point of the additional lateral pivoting fitting, the additional intermediate articulation point being arranged in a position between said additional lateral means of articulation and said additional intermediate means of articulation such that the actuation of said additional lateral actuating cylinder tilts the additional lateral pivoting fitting with the additional lateral panel from a closed position, in which the additional lateral panel covers said second lateral area, to an open position in which said additional lateral panel does not cover said second lateral area. 3. A mechanism according to claim 1, wherein it comprises an additional exterior lateral closing panel dimensioned to cover, in hatch-closed position, a second lateral area of said access opening, opposite said first lateral area, leaving free a second strip between said first strip and said second lateral area; an additional secondary exterior closing panel dimensioned to cover, in hatch-closed position, at least part of the second strip, which is not covered by any other of the panels; the at least one lateral pivoting fitting to which said additional lateral panel is attached at the bottom, couplable by means of additional lateral means of articulation to a second fixed structure which is located laterally in said interior space in a crosswise position opposite the position of said first fixed structure; at least one additional secondary pivoting fitting to which said additional secondary panel is attached at the bottom; additional intermediate means of articulation which couple the additional lateral pivoting fitting to the additional secondary pivoting fitting; at least one additional lateral actuating cylinder, hydraulic or pneumatic, couplable by its first end part to a first additional lateral articulation point on the second fixed structure, and coupled by its second end part to an additional intermediate articulation point of the additional lateral pivoting fitting; the additional intermediate articulation point being arranged in a position between said additional lateral means of articulation and said additional intermediate means of articulation, such that the actuation of said additional lateral actuating cylinder tilts said additional lateral pivoting fitting with the additional lateral panel from a closed position in which the additional lateral panel covers said second lateral area, and an open position in which said additional lateral panel does not cover said second lateral area; at least one additional intermediate actuating cylinder, hydraulic or pneumatic, with a first end part coupled to a first additional coupling point arranged in a position between said additional lateral means of articulation and said additional intermediate means of articulation on the first additional lateral pivoting fitting, and a second end part coupled to a second additional coupling point on the additional secondary pivoting fitting; the additional intermediate actuating cylinder being actuatable independently from the additional lateral actuating cylinder, such that its actuation makes it possible to tilt the additional secondary pivoting fitting with the additional secondary panel from a folded position in which they are tilted toward the additional lateral fitting and said additional secondary panel does not cover said second strip, and an unfolded position in which they are tilted in the opposite direction of said additional lateral pivoting fitting; the additional secondary panel forming, when the additional lateral panel is in closed position, a jointed external surface with said additional lateral panel and covers said second strip at least partially; said lateral panels and said secondary panels forming, in closed position, a cover which covers said access opening at least partially. 4. A mechanism according to claim 1, wherein each lateral actuating cylinder is articulated to its corresponding fixed structure on a first pivoting point which is situated on a first horizontal plane, and to its corresponding lateral fitting on a second pivoting point which is situated on a second horizontal plane; each lateral fitting is articulated to its corresponding fixed structure on a third pivoting point which is situated on a third horizontal plane; each intermediate actuating cylinder is articulated to its corresponding lateral fitting on a fourth point which is situated on a fourth horizontal plane, and to its corresponding secondary fitting on a fifth pivoting point which is situated on a fifth horizontal plane; each secondary fitting is articulated to its corresponding lateral fitting on a sixth pivoting point which is situated on a sixth horizontal plane. 5. A mechanism according to claim 4, wherein the second pivoting point, the third pivoting point and the fourth pivoting point are situated between said first horizontal plane and said sixth horizontal plane. 6. A mechanism according to claim 4, wherein, in the position in which the secondary pivoting fitting is folded, the fifth pivoting point is situated between said fourth horizontal plane and said sixth horizontal plane. 7. A mechanism according to claim 4, wherein, in the position in which the lateral pivoting fitting is closed, the third pivoting point is situated between said second horizontal plane and said sixth horizontal plane, while in the position in which the lateral pivoting fitting is open, the third pivoting point is situated between said first horizontal plane and said second horizontal plane.