Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital logic testing
Patent
1996-11-14
1998-09-22
Basinger, Sherman
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital logic testing
114319, B63G 832
Patent
active
058099271
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a device for controlling the kinematics of doors designed to open simultaneously or nearly simultaneously to clear a free passage, particularly for an application relating to a submarine equipped with a weapon launch tube.
In such an application, a solid muzzle door, located between the thick hull of the submarine and a thin hull, and able to withstand the immersion pressure, seals the tube on the sea side.
The thin hull has an opening for passage of the weapons exiting the torpedo launch tube on the axis of the muzzle door. The opening is closed by a shutter door in the resting position.
In principle the weapons are wire-guided. Wire guidance is provided by a wire of suitable length protected by a flexible metal hosepipe. This hosepipe is vulnerable to friction at the sharp angles of the edges of the opening. To avoid damage to the hosepipe, a part called a hosepipe guide is installed in the shutter door, and activated when the shutter door opens. This part moves translationally and pivots to fall back onto an edge of the opening.
Before a weapon is launched outside the weapon launch tube, the muzzle door and the shutter door should be opened simultaneously or nearly simultaneously and the hosepipe guide should be caused to fall back. This clears a space for the weapon to pass through. This space is commonly known as "passage clearance."
The muzzle door is moved by a hydraulic press.
The shutter door, moved by kinematics which are known as "main kinematics" connected to the muzzle door, retracts from its initial position while the hosepipe guide, moved by the kinematics known as "secondary kinematics" which are connected either directly to the muzzle door or to the shutter door, falls back on an edge of the opening.
Opening of the muzzle door causes the shutter door to open and the hosepipe guide to be activated, and also opens an air distributor in the weapon launch air circuit.
With a view to operating safety, it is absolutely necessary to verify that all three elements (muzzle door, shutter door, and hosepipe guide) rotate completely, because if there is a break in the main kinematics or the secondary kinematics, the shutter door in the first case and the hosepipe guide in the second case will form an obstacle in the passage clearance.
The invention relates to a device for controlling the kinematics of elements that may form an obstacle.
Hence the invention relates to a device for controlling the kinematics of pivoting elements designed to open rotationally simultaneously or nearly simultaneously to allow a clear passage, particularly for doors and other pivoting elements that might constitute an obstacle to passage of a weapon in a weapon launch tube equipped with a weapon launch circuit via an air distributor on board a submarine. The invention is characterized in that it has, on the axis of rotation of each door or pivoting element, and on the axis of rotation of a rotary element connected to the air distributor, means for converting a rotation into a translation, means for converting a translation into a rotation, and associated means for quantifying these conversions. Additionally, the means for converting a translation into a rotation on the axis of rotation of the rotary element are activated by the means for converting a rotation into a translation on the axis of rotation of each door or pivoting element in association with the quantification means.
Preferably, the means for converting a rotation into a translation and/or the means for converting a translation into a rotation are structured of a pinion mechanically connected to a rack.
Preferably, the quantification means includes a piston connected to the rack.
The device according to the invention can be connected to an assembly for controlling the opening of the air distributor, with the opening actually occurring only if it corresponds to a predetermined rotation value for the rotary element in relation to the air distributor.
Other characteristics and advantages of the present invention
Basinger Sherman
Etat Francais (represente par le Delegue General pour l'Armement
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