Power tool

A power tool includes: a motor; a fan driven by the motor and defining an axis and a radial direction; and a housing for accommodating the motor and the fan therein, the housing including: a peripheral wall formed with a ventilation hole; and a grid partly covering the ventilation hole, the ventilat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Nakano, Yoshihiro, Harada, Tetsuhiro, Uchida, Hiroki, Nishikawa, Tomomasa
Format:	Patent
Sprache:	eng
Schlagworte:	BORING COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING HAND TOOLS MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS MAKING GEARS OR TOOTHED RACKS MANIPULATORS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING TURNING
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Beschreibung
Zusammenfassung:	A power tool includes: a motor; a fan driven by the motor and defining an axis and a radial direction; and a housing for accommodating the motor and the fan therein, the housing including: a peripheral wall formed with a ventilation hole; and a grid partly covering the ventilation hole, the ventilation hole being positioned adjacent to the fan and having a shape defined by a circumferential surface, the grid including at least one elongated portion extending in a longitudinal direction perpendicular to the radial direction, and a distance from the axis of the fan to the circumferential surface is different from a distance from the axis of the fan to one elongated portion in the radial direction of the fan.