Title:
DUST COLLECTING FILTER FOR VACUUM CLEANER
Document Type and Number:
Japanese Patent JP3036286
Kind Code:
B2
Abstract:
PURPOSE: To prevent detachment of an adherent part of a doubling part and generation of abnormal noise, by a method wherein one side end of a filter medium which is not adherent is pressed against an inner wall of a bag by means of an airstream which contains dirt and dust flowing into the bag through an inlet, whereby peeling off of the side end and generation of vibration can be prevented.
CONSTITUTION: An airstream flowing into a bag 17 through an inlet 17c presses a non-adherent part 18e of one side end 18a of a filter medium 18 which is positioned on an inner wall side of the bag agianst the inner wall of the bag 17, whereby the non-adherent part 18e is not peeled up to vibrate. On the outer hand, as another side end 18d of the filter medium 18 positioned on the inner wall side of the bag 17 is pressed against another inner wall 18g of the bag 17 by an airstream P0, large-sized dust contained in the aitream P0 never clings on a further side end 18d of the filter medium 18. Thus generation of abnormal noise due to vibration of the non-adherent part 18e at a doubled part 18c of the filter medium 18 can be prevented, and at the same time, a detachment of an adherent part of the doubled part 18c can also be prevented.
Inventors:
Masayuki Takagi
Koichi Sagawa
Koichi Sagawa
Application Number:
JP5839693A
Publication Date:
April 24, 2000
Filing Date:
March 18, 1993
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
A47L9/14; (IPC1-7): A47L9/14
Domestic Patent References:
| JP1181828A | ||||
| JP1155954U |
Attorney, Agent or Firm:
Yasuo Sakuta