The United States of America as represented by the Secretary of the Army
인용정보
피인용 횟수 :
3인용 특허 :
10
초록▼
A reefing assembly for a circular parachute having a canopy including a skirt portion, and suspension lines attached to the skirt portion. The assembly includes a tension structure bounding a central opening and having a plurality of straight segments. A plurality of cords, each cord having two end
A reefing assembly for a circular parachute having a canopy including a skirt portion, and suspension lines attached to the skirt portion. The assembly includes a tension structure bounding a central opening and having a plurality of straight segments. A plurality of cords, each cord having two ends, are each fixed to one end of one of the tension structure straight segments to define a loop, and a plurality of rings slidably disposed on each of the loops. Each of the rings is slidably connected to at least one of the suspension lines. The rings are clustered together at a central portion of their respective loops, and upon deployment of the canopy, slide along their respective loops to become substantially equidistantly disposed on their respective loops. The assembly facilitates a restrained opening of the canopy and thereby reduces opening shock load.
대표청구항▼
What is claimed is: 1. A reeling assembly for a circular parachute comprising a canopy having a skirt portion, and suspension lines attached at first ends thereof to the skirt portion, the assembly comprising: a tension structure bounding a central opening and having a plurality of substantially st
What is claimed is: 1. A reeling assembly for a circular parachute comprising a canopy having a skirt portion, and suspension lines attached at first ends thereof to the skirt portion, the assembly comprising: a tension structure bounding a central opening and having a plurality of substantially straight segments viewed in plan with the canopy open; a plurality of cords, each cord defining a loop having two ends, each end of a loop being fixed to one end of one of the tension structure straight segments; a plurality of rings slidably disposed on each of the loops, each of said rings being slidably connected to at least one of the suspension lines; wherein said rings are adapted for disposition clustered together at a central portion of their respective loops, and adapted, upon deployment of the canopy, to slide along their respective loops to become substantially equidistantly disposed on their respective loops; and wherein equal numbers of said rings are disposed on each of the loops; and wherein the disposition of said rings substantially equidistantly on their respective loops causes substantially equidistant spacing of the suspension lines; whereby to facilitate a restrained opening of the canopy and thereby reduce opening shock load. 2. The reefing assembly in accordance with claim 1 wherein said tension structure is substantially rectangularly shaped and is defined by four of the substantially straight segments, and the assembly includes four of said cords. 3. The reeling assembly in accordance with claim 1, and further comprising a sail disposed in the central opening and connected to said tension structure. 4. The reeling assembly in accordance with claim 3 wherein said sail is of a material selected from a group of materials consisting of a solid material, a porous material, and a netting. 5. A reefing assembly for a circular parachute comprising a canopy having a skirt portion, and suspension lines attached at first ends thereof to the skirt portion, the assembly comprising: a tension structure bounding a central opening and having a plurality of substantially straight segments viewed in plan with the canopy open; a plurality of cords, each cord defining a loop having two ends, each end of a loop being fixed to one end of one of the tension structure straight segments; a plurality of rings slidably disposed on each of the loops, each of said rings being slidably connected to at least one of the suspension lines; wherein said rings are adapted for disposition clustered together at a central portion of their respective loops, and adapted, upon deployment of the canopy, to slide along their respective loops to become substantially equidistantly disposed on their respective loops; and wherein equal numbers of said rings are disposed on each of the loops; and wherein the disposition of said rings substantially equidistantly on their respective loops causes substantially equidistant spacing of the suspension lines; and wherein said tension structure comprises a selected one of tape structure and webbing structure; whereby to facilitate a restrained opening of the canopy and thereby reduce opening shock load. 6. A reefing assembly for a circular parachute comprising a canopy having a skirt portion, and suspension lines attached at first ends thereof to the skin portion, the assembly comprising: a tension structure bounding a central opening and having a plurality of substantially straight segments viewed in plan with the canopy open; a plurality of cords, each cord defining a loop having two ends, each end of a loop being fixed to one end of one of the tension structure straight segments; a plurality of rings slidably disposed on each of the loops, each of said rings being slidably connected to at least one of the suspension lines; wherein said rings are adapted for disposition clustered together at a central portion of their respective loops, and adapted, upon deployment of the canopy, to slide along their respective loops to become substantially equidistantly disposed on their respective loops; and wherein equal numbers of said rings are disposed on each of the loops; and wherein said rings support suspension lines extending from gores of the parachute and each cluster of rings on one of the loops supports a plurality of suspension lines, such that each cluster of rings in the assembly supports a group of suspension lines extending from a group of gores whose deployment depends upon movement of said rings on theft respective loops; whereby to facilitate a restrained opening of the canopy and thereby reduce opening shock load. 7. The reefing assembly in accordance with claim 6 wherein any two adjacent ones of the loops support rings which support a further gore extending between the two adjacent loops, the further gore being adapted for immediate opening upon deployment of the parachute. 8. The reefing assembly in accordance with claim 7 wherein said tension structure comprises at least four of said segments. 9. The reefing assembly in accordance with claim 7 wherein said tension structure comprises segments of equal length. 10. The reeling assembly in accordance with claim 6 and further comprising guide lines each fixed at a first end to a suspension line group link and attached at a second end to one of the suspension lines of each group of gores at a selected distance from the canopy skirt to prevent the ring on the one suspension line from contacting the canopy skirt. 11. The reeling assembly in accordance with claim 10 wherein the suspension line in each group of gores to which said guide line is attached is a middle suspension line of the group of gores.
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