US 6,981,779 B2
Power tools
Toru Fukuoka, Anjo (Japan)
Assigned to Makita Corporation, Anjo (Japan)
Filed on Nov. 03, 2003, as Appl. No. 10/700,759.
Claims priority of application No. 2002-320246 (JP), filed on Nov. 01, 2002.
Prior Publication US 2004/0093743 A1, May 20, 2004
Int. Cl. B25B 23/18 (2006.01)
U.S. Cl. 362—119 11 Claims
OG exemplary drawing
 
1. A power tool, comprising:
a tool bit case,
a tool bit provided within the tool bit case and performs a predetermined operation on a workpiece,
a drive motor that drives the tool bit, and
a cooling air guiding member that guides cooling air to cool the drive motor to a work area of the workpiece to be worked on with the tool bit, when the cooling air is discharged into the tool bit case,
wherein the cooling air guiding member includes a plate element that is provided in a cooling air discharge port, the discharge port facing the tool bit from a side of a motor housing that houses the drive motor, and wherein openings are formed through the plate element toward the work area so as to guide the cooling air toward the work area.