Parachute device, flight device, and flying body ejection mechanism

Patent metadata

Field	Value
Publication number	US-11753173-B2
Application number	US-201917429056-A
Country	US
Kind code	B2
Filing date	Dec 25, 2019
Priority date	Feb 19, 2019
Publication date	Sep 12, 2023
Grant date	Sep 12, 2023

Abstract

To provide a parachute device capable of quickly and reliably opening a parachute even when an airflow effect during flying or falling of a flight device cannot be immediately obtained. A parachute device ( 4 ) includes a parachute ( 400 ), a parachute accommodation section ( 40 ) configured to accommodate the parachute, at least one flying body ( 43 ) connected to the parachute, and an ejection section ( 41 ) configured to hold the flying body and to eject the flying body held, and the flying body includes a flying body main body section ( 44 ) engaged with the ejection section, and a gas generating device ( 45 ) disposed in an internal space ( 440 ) defined by the ejection section and the flying body main body section, and configured to generate gas.

First claim

The invention claimed is:

1. A parachute device comprising:
a parachute;
a parachute accommodation section configured to accommodate the parachute;
at least one flying body connected to the parachute;
an ejection section formed in a tube shape having an opening at one end and having a bottom at an other end, and configured to hold the flying body and to eject the flying body held; and
a connection line connecting the parachute and the flying body, wherein
the flying body includes
a flying body main body section formed in a bar shape and engaged with the ejection section, and
a gas generating device disposed at one end side of the flying body main body section and disposed in an internal space defined by the ejection section and the flying body main body section, and configured to generate gas, and
the flying body is disposed such that the flying body main body section is inserted in an interior of the ejection section at the one end side, and the gas generating device faces a bottom portion of the ejection section in the interior of the ejection section, wherein
the flying body main body section includes
a holding section configured to hold the gas generating device, and
a connection section formed so as to protrude to a side opposite to the holding section in an axis direction of the flying body main body section, and connected to the connection line.

2. The parachute device according to claim 1 , further comprising:
a lead wire configured to ignite the gas generating device, wherein the connection section is formed in a tube shape, and
at least a part of the lead wire is routed in an interior of the connection section.

3. The parachute device according to claim 1 , further comprising:
an abnormality detection section configured to detect an abnormality during flying; and
a parachute control section configured to cause the flying body to be ejected from the ejection section in response to detection of the abnormality by the abnormality detection section.

4. A parachute device comprising:
a parachute;
a parachute accommodation section configured to
accommodate the parachute;
at least one flying body connected to the parachute; and
an ejection section configured to hold the flying body and to eject the flying body held, and formed in a bar shape, wherein
the flying body includes
a flying body main body section engaged with the ejection section, and formed in a tube shape having an opening at one end and having a bottom at an other end, and
a gas generating device disposed in an internal space defined by the ejection section and the flying body main body section, configured to generate gas, and provided in an interior of the flying body main body section, and
the flying body is supported on the ejection section such that at least a part of the ejection section is inserted in an interior of the flying body main body section, and the gas generating device faces a tip end portion of the ejection section.

5. The parachute device according to claim 4 , further comprising:
a connection line connecting the parachute and the flying body, wherein the flying body main body section includes
a supporting section formed in a tube shape, and inserted with at least a part of the ejection section from one end side,
a holding section configured to hold the gas generating device at an other end side of the supporting section such that the gas generating device faces a tip end portion of the ejection section inserted from the one end side of the supporting section, and
a connection section formed so as to protrude from the holding section to a side opposite to the supporting section, and connected to the connection line.

6. The parachute device according to claim 5 , further comprising:
a lead wire configured to ignite the gas generating device, wherein the connection section is formed in a tube shape, and
at least a part of the lead wire is routed in an interior of the connection section.

7. A flight device comprising:
an aircraft body unit;
a thrust force generation section connected to the aircraft body unit and configured to generate a thrust force;
a flight control section configured to control the thrust force generation section;
an abnormality detection section configured to detect an abnormality during flying;
the parachute device according to claim 1 ; and
a parachute control section configured to cause the flying body to be ejected from the ejection section in response to detection of the abnormality by the abnormality detection section.

8. A flying body ejection mechanism comprising:
a flying body capable of being connected to a parachute; and
an ejection section configured to hold the flying body and to eject the flying body held, and formed in a bar shape, wherein
the flying body includes
a flying body main body section engaged with the ejection section, and formed in a tube shape having an opening at one end and having a bottom at an other end, and
a gas generating device disposed in an internal space defined by the ejection section and the flying body main body section, configured to generate gas, and provided in an interior of the flying body main body section, and
the flying body is supported on the ejection section such that at least a part of the ejection section is inserted in an interior of the flying body main body section, and the gas generating device faces a tip end portion of the ejection section.

Assignees

• Minebea Mitsumi Inc

Inventors

• Sakamoto Yuzuru
• Shimohisa Shoji
• Mochida Yoshihiro

Classifications

• B64U50/13

  using external fans or propellers · CPC title

• B64U50/18

  Thrust vectoring · CPC title

• B64U30/26

  Ducted or shrouded rotors · CPC title

• B64U70/83

  using parachutes, balloons or the like · CPC title

• B64D17/80 Primary

  in association with aircraft, e.g. for braking thereof · CPC title