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Title:
DUST CHAMBER
Document Type and Number:
Japanese Patent JP3758985
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a dust chamber which can surely catch dust such as lightweight crushed particles contained in an air stream, dispenses with power, has simple constitution and is low-priced.
SOLUTION: In a housing 20, a suction port 22 is provided and further an air exhaust port 24 and a dust exhaust port 26 are respectively provided above and below the suction port 22. Further, a filter 30 is provided between the suction port 22 and the air exhaust port 24, and at least one vane 44 which oscillates between a first position for closing the dust exhaust port 26 and a second position for opening the dust exhaust port 26 is installed below the filter 30. By this constitution, dust contained in the air stream sucked from the suction port 22 is caught with the filter 30, and further, the vane 44 is held at the first position by pressure difference between above and below the vane 44 caused by the air stream. On the other hand, when the air stream disappears, the vane 44 oscillates to the second position and the dust caught with the filter 30 is discharged via the dust exhaust port 26.


Inventors:
Hiroshi Takano
Application Number:
JP2001105793A
Publication Date:
March 22, 2006
Filing Date:
April 04, 2001
Export Citation:
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Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
B02C23/00; (IPC1-7): B02C23/00
Domestic Patent References:
JP58043921U
JP10216440A
JP9299732A
JP10122500A
JP2000262335A
Attorney, Agent or Firm:
Aoyama Aoi
Osamu Kawamiya