Rohraufweitvorrichtung.

摘要

A pipe flaring device has a rotatable eccentric cone (47), an apex of which defines a fixed centre of rotation, is pressed, while rotating, against an end of a pipe P to be flared. The device has a body (11) having a motor M therein, a drive shaft (27) drivable by the motor through reduction gearing (23) and relatively movable in the axial direction thereof, a feed screw shaft member (49) connected to the drive shaft (27) and screw-engaged by the body so as to rotate and move in the axial direction thereof, and a one-direction rotation transmission mechanism (39,43) between the drive shaft (27) and feed screw shaft member (49) for transmitting rotation of the drive shaft to the feed screw shaft member only in one direction.