Abstract: A Coanda spiral flow unit wire installation device having a tube passage connecting port, an inlet for a conducting wire or an induction wire, and a Coanda slit for the supply of compressed fluid to generate Coanda spiral flow in the direction of the tube passage, a compressed fluid control device which comprises a hand grip with a fluid supply passage and a compressed fluid supply valve unit provided in the hand grip. The unit is small-sized and light-weight and can be hand held so as to permit easier and more efficient wire installation in limited space situations.

Abstract: In a Coanda spiral flow unit installation device, a Coanda flow supply device for the supply of a conducting wire or an induction wire is provided at the suction and induction port through which the conducting wire or the induction wire is induced.A feeding device is desposed on the outer side thereof.This device permits more stable installation at high speed and high efficiency. It is possible to install a thin optical fiber over a long distance.