Title:
DUST COLLECTION DEVICE AND VACUUM CLEANER
Document Type and Number:
WIPO Patent Application WO/2019/198776
Kind Code:
A1
Abstract:
Provided are: a dust collection device (1) that improves the separation efficiency of dust while inhibiting attachment of the dust; and a vacuum cleaner comprising this device. The dust collection device (1) comprises a cylindrical case (10) and an insertion part (16). The case (10) has an introduction port (3) into which dust-containing air is introduced. The insertion part (16) is positioned inside of the case (10), and a swirling flow (A) of the dust-containing air is formed between the insertion part and an inner surface (14) of the case (10). The insertion part (16) has a cylindrical enlarged section (24), an open section, and a wall section (48). The open section is formed on the surface of the enlarged section (24) on the side of a first centrifugal separating part (4). The wall section (48) protrudes at a position corresponding to the outside of the open section from the surface of the enlarged section (24) on the side of the first centrifugal separating part (4) towards the first centrifugal separating part (4).
Inventors:
TANAKA AKIYOSHI (JP)
MANO FUMIKI (JP)
OHSHITA SATOSHI (JP)
MANO FUMIKI (JP)
OHSHITA SATOSHI (JP)
Application Number:
PCT/JP2019/015694
Publication Date:
October 17, 2019
Filing Date:
April 10, 2019
Export Citation:
Assignee:
TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORP (JP)
International Classes:
A47L9/16
Foreign References:
JP2017158805A | 2017-09-14 | |||
JP2011177294A | 2011-09-15 | |||
JP2003088485A | 2003-03-25 | |||
US20170319031A1 | 2017-11-09 |
Attorney, Agent or Firm:
KABASAWA Satoshi et al. (JP)
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