Title:
POWER TOOL
Document Type and Number:
Japanese Patent JP2003220578
Kind Code:
A
Abstract:
To ease impact forces between side tooth faces on the drive side and tooth faces on the output side while allowing a reduction in resulting noises and moreover, make the power tool applicable for higher load types of machines by increasing areas subjected to loads.
In the power tool having a shaft 3 to which rotation is transmitted from a large gear 4 for transmitting a rotating force of a motor and a clearance 6 between the shaft 3 and the large gear 4, a curved surface 4b is provided at a contact part of the large gear 4 and the shaft 3 while an arcuate hole is provided near the contact part of the large gear 4 and the shaft 3.
Inventors:
KAMIMURA JUNICHI
SATO ITSUO
MURAKAMI TAKAHIRO
KOBAYASHI JURO
KONISHI JUNICHI
SATO ITSUO
MURAKAMI TAKAHIRO
KOBAYASHI JURO
KONISHI JUNICHI
Application Number:
JP2002017713A
Publication Date:
August 05, 2003
Filing Date:
January 25, 2002
Export Citation:
Assignee:
HITACHI KOKI KK
International Classes:
B24B23/00; B25F5/00; F16D1/06; F16H55/14; (IPC1-7): B25F5/00; F16D1/06; F16H55/14
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