Discharge apparatus and unmanned aircraft

Patent metadata

Field	Value
Publication number	US-12522355-B2
Application number	US-202318178559-A
Country	US
Kind code	B2
Filing date	Mar 6, 2023
Priority date	Sep 11, 2020
Publication date	Jan 13, 2026
Grant date	Jan 13, 2026

Abstract

Provided is a discharge apparatus to which an aerosol container can be detachably mounted, the discharge apparatus including: a pressing unit configured to press a stem for opening and closing a valve of the aerosol container; and a buffer unit configured to buffer excess force, which is an amount of force by which force with which the pressing unit presses the stem has exceeded force to open the valve. The buffer unit may be configured to buffer the excess force exerted on the pressing unit by moving the pressing unit according to the excess force. The buffer unit may be configured to buffer the excess force exerted on the aerosol container by moving the aerosol container according to the excess force.

First claim

What is claimed is:

1 . A discharge apparatus to which an aerosol container can be detachably mounted, the discharge apparatus comprising:
a pressing unit configured to press a stem for opening and closing a valve of the aerosol container; a buffer unit configured to buffer excess force, which is an amount of force by which force with which the pressing unit presses the stem has exceeded force to open the valve; and, a container retaining unit for retaining the aerosol container, wherein the container retaining unit comprises:
a first accommodation member for accommodating one end of the aerosol container, and
a second accommodation member coupled to the first accommodation member and for accommodating another end of the aerosol container, and
the buffer unit is configured to couple the first accommodation member and the second accommodation member and to buffer the excess force by varying relative positions of the first accommodation member and the second accommodation member according to the excess force.

2 . The discharge apparatus according to claim 1 , wherein
the buffer unit is configured to buffer the excess force exerted on the pressing unit by moving the pressing unit according to the excess force.

3 . The discharge apparatus according to claim 1 , wherein
the buffer unit is configured to buffer the excess force exerted on the aerosol container by moving the aerosol container according to the excess force.

4 . The discharge apparatus according to claim 1 , comprising
an exposure prevention part configured to prevent exposure of an inside of the container retaining unit from between the first accommodation member and the second accommodation member.

5 . The discharge apparatus according to claim 1 , wherein
the buffer unit comprises a snap lock with an elastic part attached to the container retaining unit.

6 . The discharge apparatus according to claim 1 , wherein
the pressing unit is coupled to the first accommodation member, and a discharge drive unit for driving the aerosol container is coupled to the second accommodation member.

7 . The discharge apparatus according to claim 1 , comprising a coupling unit for coupling the container retaining unit to a fixing part.

8 . The discharge apparatus according to claim 1 , wherein
the buffer unit comprises a buffer elastic part for buffering the excess force.

9 . The discharge apparatus according to claim 8 , comprising
a preload mechanism configured to apply preload to the buffer elastic part.

10 . The discharge apparatus according to claim 1 , comprising
a discharge drive unit configured to supply drive force for discharging contents from the aerosol container, wherein the excess force is generated by the drive force.

11 . The discharge apparatus according to claim 1 , wherein
the buffer unit is provided outside an outer circumference of the aerosol container in a side view along a major axis of the aerosol container.

12 . An unmanned aircraft comprising the discharge apparatus according to claim 1 .

Assignees

• Toyo Seikan Co Ltd

Inventors

• Kominami Atsushi
• Araki Souji

Classifications

• B64U30/20

  Rotors; Rotor supports · CPC title

• B65D83/303

  using extension tubes located in or at the nozzle outlets · CPC title

• B64U2101/28

  for painting or marking · CPC title

• B64U10/14

  with four distinct rotor axes, e.g. quadcopters · CPC title

• B64U2101/45

  for releasing liquids or powders in-flight, e.g. crop-dusting · CPC title