Title:
CONCRETE BORING APPARATUS WITH INCHING DEVICE
Document Type and Number:
Japanese Patent JP2011218766
Kind Code:
A
Abstract:
To provide a concrete boring apparatus with an inching device, capable of efficiently boring a hard member such as a concrete construct without damaging a diamond core bit.
An inching boring apparatus 1 is used to control ON and OFF of a motor 3, and an efficient boring is carried out by using a large torque of the motor 3 when changed from OFF to ON.
Inventors:
KOSAKA YOKO
Application Number:
JP2010098272A
Publication Date:
November 04, 2011
Filing Date:
April 06, 2010
Export Citation:
Assignee:
KOSAKA YOKO
International Classes:
B28D1/14