US 12,220,752 B2
Dust collection device for electrically powered tool, and electrically powered tool
Kiyonobu Yoshikane, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Appl. No. 16/639,982
Filed by MAKITA CORPORATION, Anjo (JP)
PCT Filed Aug. 9, 2018, PCT No. PCT/JP2018/029977
§ 371(c)(1), (2) Date Feb. 18, 2020,
PCT Pub. No. WO2019/044453, PCT Pub. Date Mar. 7, 2019.
Claims priority of application No. 2017-167478 (JP), filed on Aug. 31, 2017.
Prior Publication US 2020/0198024 A1, Jun. 25, 2020
Int. Cl. B23B 45/02 (2006.01); B23Q 11/00 (2006.01); B25F 5/00 (2006.01); A47L 9/10 (2006.01)
CPC B23B 45/02 (2013.01) [B23Q 11/00 (2013.01); B25F 5/00 (2013.01); A47L 9/102 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A dust collector for an electric power tool, comprising:
a body case that has an exhaust outlet and is installable on the electric power tool; a dust box;
a filter internal to the dust box;
a nozzle that is connected to the body case and has a suction opening at a front end;
a dust collecting route from the suction opening to the exhaust outlet passing through the filter; and
a vibration applicator that applies a vibration to the dust box, wherein the vibration is applied parallel to a ventilation direction of the filter, wherein
the vibration applicator includes
a knob and applies the vibration in accordance with a rotating operation of the knob,
a cam assembly configured to convert the rotating operation into a back and forth movement of a hammering clement to generate the vibration,
a base that is cylindrical with a closed bottom and includes a support shaft,
the base is secured to a side corresponding to the dust box and has an open front side,
the support shaft is penetratingly secured to a center of the base,
the support shaft projects forward, and
the knob is rotatable on a front end of the support shaft.