Title:
LOCAL AIR PURIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/040273
Kind Code:
A1
Abstract:
This local air purification device (1) is provided with: a push hood (2) having an air flow open surface (23) for blowing out a purified uniform air flow; a guide (3) which is provided on the air flow open surface (23) side of the push hood (2), extends the uniform air flow from the air flow open surface (23) side toward a downstream side, and forms an open surface (31) on a downstream-side end section; and a first laminar flow generation device (41) which is arranged inside the guide (3) and blows out a laminar flow (41a) in a direction approximately perpendicular to the direction in which the uniform air flow is blown out from the air flow open surface (23). The first laminar flow generation device (41) moves dust generated inside the guide (3) to the peripheral edge of the inside of the guide (3) by means of the laminar flow (41a) blown out in the approximately perpendicular direction, and the push hood (2) discharges the dust, moved to the peripheral edge of the inside of the guide (3) by the first laminar flow generation device (41), out of the guide (3) by the uniform air flow blown out from the air flow open surface (23).
Inventors:
SUZUKI TAKETO (JP)
MAEDA SHINYA (JP)
MAEDA SHINYA (JP)
Application Number:
PCT/JP2019/032945
Publication Date:
February 27, 2020
Filing Date:
August 23, 2019
Export Citation:
Assignee:
KOKEN KK (JP)
International Classes:
F24F7/06; F24F7/003
Foreign References:
| JP2014098519A | 2014-05-29 | |||
| JP2014025624A | 2014-02-06 | |||
| JPH0590234U | 1993-12-10 |
Attorney, Agent or Firm:
KIMURA Mitsuru (JP)
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