Parachute, safety device, and flight vehicle provided with safety device
AssigneeNippon Kayaku Kabushiki Kaisha
InventorsHiroshi Nakamura, Kensuke Nishio
Life of this patent
Estimating the term…
Abstract
A parachute that can be deployed more quickly than before, a safety device provided with the parachute, and a flight vehicle provided with the safety device. An umbrella body of the parachute has a substantially hemispherical shape including a first impact buffer, a second impact buffer, and a shape holder, and includes a vent formed at a top portion and an umbrella edge portion constituting an opening. The first impact buffer and the second impact buffer are formed in a state where each of a plurality of base fabrics is disposed such that a center line L connecting a vertex P and a geometric center position of each of the base fabrics intersects an extending direction of a warp thread and a weft thread of the base fabric.
Claims18
A parachute comprising:
- an umbrella body formed by using a plurality of base fabrics woven by combining a warp thread and a weft thread, the umbrella body including a head top portion and an umbrella edge portion, wherein the umbrella body includes an impact buffer that buffers impact when the parachute is deployed, and a shape holder that holds a deployed shape of the parachute after the parachute is deployed,
- the impact buffer is an umbrella-shaped portion from the head top portion of the umbrella body to a midway position between the head top portion and the umbrella edge portion, and is formed by joining sides of the plurality of the base fabrics for the impact buffer having a substantially trapezoidal shape in a circumferential direction and is formed in a state where each of the base fabrics for the impact buffer is disposed such that a center line connecting a vertex of the head top portion and a geometric center position of each of the base fabrics for the impact buffer makes an intersection with an extending direction of the warp thread and the weft thread of each of the base fabrics for the impact buffer,
- the shape holder joins sides of the plurality of base fabrics for the shape holder having a substantially trapezoidal shape in a circumferential direction to form the umbrella body from the midway position to the umbrella edge portion, and includes one end portion connected to an edge portion of the impact buffer and has lower elasticity than the impact buffer, and
- wherein the shape holder is formed by selecting any one of the warp thread and the weft thread for each of the base fabrics for the shape holder and disposing each of the base fabrics for shape holder such that an extending direction of the selected warp thread or weft thread is parallel to the center line.
Dependencies are inferred from the claim text.