Global Patent Index - EP 2380707 A4

EP 2380707 A4 20140709 - ELECTRIC TOOL

Title (en)

ELECTRIC TOOL

Title (de)

ELEKTRISCHES WERKZEUG

Title (fr)

OUTIL ÉLECTRIQUE

Publication

EP 2380707 A4 20140709 (EN)

Application

EP 09834807 A 20091218

Priority

  • JP 2009071175 W 20091218
  • JP 2008331422 A 20081225

Abstract (en)

[origin: EP2380707A1] It is an object of the invention to provide a cooling technique which contributes to improvement of the performance of cooling a motor and a high-temperature region in a power tool. The power tool includes a tool body 103 and a motor 111 which is housed within the tool body 103, and performs a predetermined operation on a workpiece by driving the motor 111 to drive a tool bit 119 which is disposed in a front end region of the tool body 103. A motor cooling air passage 137 is provided within the tool body 103 and cooling air for cooling the motor flows through the motor cooling air passage 137. A heat pipe 131 connects the motor cooling air passage 137 and a high-temperature region 108 located away from the motor cooling air passage 137 and cools the high-temperature region 108 by transferring heat of the high-temperature region 108 to the motor cooling air passage 137.

IPC 8 full level

B25D 17/20 (2006.01); B25F 5/00 (2006.01)

CPC (source: EP)

B25D 17/20 (2013.01); B25F 5/008 (2013.01); B25D 2211/003 (2013.01); B25D 2217/0061 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

EP 2380707 A1 20111026; EP 2380707 A4 20140709; EP 2380707 B1 20150916; JP 2010149246 A 20100708; JP 5294838 B2 20130918; WO 2010074006 A1 20100701

DOCDB simple family (application)

EP 09834807 A 20091218; JP 2008331422 A 20081225; JP 2009071175 W 20091218