Ejection device and flying body provided with ejection device
Provided are an ejection device with reduced weight without reducing an ejection speed of an ejected object and a flying object including the ejection device. An ejection device 100 includes a piston member 10 , a cylinder 14 which accommodates the piston member 10 and is provided with a hole portion 13 for allowing the piston member 10 to project outward during operation, a push-up member 15 pushed up in one direction by the piston member 10 , an ejected object 16 pushed up while being supported by the push-up member 15 , and a gas generator 17 which moves the piston member 10 in the cylinder 14 , and in the ejection device 100 , the push-up member 15 has a support portion 20 disposed on a distal end side of the piston member 10 with a tip of the piston member 10 in a moving direction of the piston member 10 set as a reference.
1. An ejection device comprising:
a sliding member;
a cylinder that accommodates the sliding member inside and includes a hole portion configured to allow the sliding member to project outward from the inside during operation;
a push-up member that has a bottomed cylindrical portion disposed to cover at least a portion of the cylinder and a flange-like portion formed to project outward from an opening portion of the bottomed cylindrical portion or an intermediate portion of a side surface of the bottomed cylindrical portion and is pushed up in one direction by the sliding member;
an ejected object pushed up while being supported by the flange-like portion of the push-up member; and
a power source that moves the sliding member in the cylinder such that the sliding member projects outward from the inside.
2. The ejection device according to claim 1 , wherein a support portion of the bottomed cylindrical portion is partially removed in a wall portion by drilling or mesh processing.
3. The ejection device according to claim 1 , wherein the flange-like portion includes a plurality of projecting portions formed into a disc shape or a polygon, or formed radially.
4. The ejection device according to claim 1 , further comprising a container that accommodates the sliding member, the cylinder, the push-up member, the ejected object, and the power source.
5. The ejection device according to claim 4 , wherein the ejected object is accommodated in a portion of the container between an inner surface of the container and an outer surface of the bottomed cylindrical portion.
6. The ejection device according to claim 4 , wherein a lid is provided at an end of the container on a downstream side in an ejection direction of the ejected object.
7. The ejection device according to claim 4 , wherein the container includes a vent hole that suppresses negative pressure generated between the container and the push-up member during operation.
8. The ejection device according to claim 1 , further comprising a driving sliding member that is provided in the cylinder and moves the sliding member in a contact or non-contact manner.
9. The ejection device according to claim 1 , further comprising a relay member that receives pressure from the power source and moves the sliding member.
10. The ejection device according to claim 1 , wherein the ejected object includes a lift force generating member having a control line, and the ejection device further comprising a steering mechanism connected to the control line such that the lift force generating member is steerable.
11. A flying object comprising:
a. an airframe;
b. the ejection device according to claim 1 coupled to the airframe; and
c. a propulsion mechanism coupled to the airframe and propelling the airframe.