Waste liquid scattering prevention device and waste liquid scattering prevention method

Patent metadata

Field	Value
Publication number	US-12472522-B2
Application number	US-202318127028-A
Country	US
Kind code	B2
Filing date	Mar 28, 2023
Priority date	Mar 30, 2022
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

A waste liquid scattering prevention device includes a box body having an upper wall being formed with an insertion hole into which a tip portion of a paint gun is inserted, and an air ejection port that ejects air along an inner wall of the box body. A waste liquid scattering prevention method includes an arrangement step of inserting the tip portion of a paint gun into an insertion hole, a cleaning step of cleaning the paint gun, and an air ejecting step of ejecting air from an air ejection port along the inner wall of the box body.

First claim

What is claimed is:

1 . A waste liquid scattering prevention device that prevents scattering of waste liquid when a paint gun including a bell-shaped spray head is cleaned or tested, the device comprising:
a box body that includes an upper wall being formed with an insertion hole into which a tip portion of the paint gun is inserted; a cleaning nozzle that discharges cleaning liquid; and an air ejection port that is positioned lower than the cleaning nozzle, opens downward, and is configured to eject air along an inner wall of the box body.

2 . The waste liquid scattering prevention device according to claim 1 , wherein
the air ejection port is disposed at an upper portion of the box body and ejects the air along the inner wall toward a lower portion of the box body.

3 . The waste liquid scattering prevention device according to claim 1 , wherein
the air ejection port is formed in a slit shape and forms an air curtain along the inner wall.

4 . The waste liquid scattering prevention device according to claim 1 , wherein
the air ejection port is formed in an annular slit shape and forms an annular air curtain along the inner wall.

5 . The waste liquid scattering prevention device according to claim 1 , wherein
an opening that is configured to discharge the waste liquid is provided at a lower end of the box body.

6 . A waste liquid scattering prevention method that prevents scattering of waste liquid when a paint gun including a bell-shaped spray head is cleaned or tested, the method comprising:
inserting a tip portion of the paint gun into an insertion hole formed in an upper wall of a box body; cleaning the paint gun by discharging cleaning liquid from a cleaning nozzle; and ejecting air downward along an inner wall of the box body from an air ejection port positioned lower than the cleaning nozzle.

7 . The waste liquid scattering prevention method according to claim 6 , wherein
in the ejecting, the air is ejected toward a lower portion of the box body along the inner wall from the air ejection port formed in the upper wall of the box body.

8 . The waste liquid scattering prevention method according to claim 6 , wherein
in the ejecting, the air is ejected from the air ejection port formed in a slit shape to form an air curtain along the inner wall.

9 . The waste liquid scattering prevention method according to claim 6 , wherein
in the ejecting, the air is ejected from the air ejection port formed in an annular slit shape to form an annular air curtain along the inner wall.

Assignees

• Honda Motor Co Ltd

Inventors

• NAGATOMO Yuta
• Nogita Wataru
• Oda Yuichi
• Tabata Kimihide
• Nabeta Takeshi

Classifications

• Y02P70/10

  Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working · CPC title

• B05B15/555

  discharged by cleaning nozzles · CPC title

• B05B14/10

  the excess material being particulate (for spray booths B05B14/48) · CPC title

• B08B3/02 Primary

  Cleaning by the force of jets or sprays · CPC title

• B05B1/14

  with multiple outlet openings (B05B1/02, B05B1/26 take precedence); with strainers in or outside the outlet opening · CPC title