The work of the magnetic arresting barrier null ferromagnetism which possesses the movable polar extended body and this kind of movable polar extended body

摘要

Polar extender movable for (1) relates to (4), the present invention is secured extending in the (X-X) predetermined longitudinal magnetic restraining device for holding the workpiece ferromagnetic (P) is pole member has a (5), the pole members and two (6, 7) is provided with at least attached to (5) pole member that is the fixed, at least the poles the two members (6,7) , it is very movable member which is fixed to the (5). It is characterized by having a (8) holder means connected operatively to the electrode member 85) which is the fixed, the holder means (8), the longitudinal direction of the predetermined electrode extender movable is, (X- is movable between an operating position and a second position (P1) and (P2) operating position of the first along the X), the pole member movable in two (6, 7), are the fixed them at least act so as to maintain in contact with the pole member was (5).