Title:
手で操縦される電動工具によって生成された含塵空気を濾過するためのフィルタ配置構成、並びに手で操縦される電動工具とそのようなフィルタ配置構成とを含む電動工具配置構成
Document Type and Number:
Japanese Patent JP7433951
Kind Code:
B2
Abstract:
The invention refers to a filter arrangement for filtering dust-laden air (7) generated by a hand-guided power tool (1) having a pneumatic or electric motor, in particular a sander or a grinder, during operation of the power tool (1). The filter arrangement comprises a filter cartridge (13) having- a hollow cylindrical casing (14),- a hollow cylindrical filter element (22) located inside the casing (14),- an air inlet port (15) provided in the casing (14), pneumatically connected to the power tool (1) to allow dust-laden air to enter the filter cartridge (13), and- an air outlet port (20) provided in the casing (14), to allow filtered air (9) leave the filter cartridge (13),an external hollow-cylindrical input chamber (23) is formed between the casing (14) and the filter element (22),an internal cylindrical output chamber (26) is formed inside the filter element (22),the input chamber (23) is separated from the output chamber (26),the input chamber (23) is in pneumatic connection with the air inlet port (15) and the internal chamber (26) is in pneumatic connection with the air outlet port (20),wherein the filter arrangement comprises an active airflow generating device (30) with a fan (40) comprising a plurality of blades (44) and driven by an electric motor (38) separate from the motor of the power tool (1), with an air inlet (34) being in pneumatic connection with the air outlet port (20) and the internal chamber (26) of the filter cartridge (13) in order to generate or support the airflow (8) through the filter cartridge (13).
Inventors:
Guido Valentini
Application Number:
JP2020020238A
Publication Date:
February 20, 2024
Filing Date:
February 10, 2020
Export Citation:
Assignee:
Guido Valentini
International Classes:
B24B55/10; B01D46/00; B23Q11/00; B25F5/00
Domestic Patent References:
| JP2019111595A | ||||
| JP2019181684A | ||||
| JP2016179512A | ||||
| JP2004180464A | ||||
| JP2000316761A | ||||
| JP2017121681A | ||||
| JP2002307332A | ||||
| JP2014217920A |
Foreign References:
| EP1849555B1 |
Attorney, Agent or Firm:
Koji Murai
Takeharu Miyagaki
Takeharu Miyagaki