MAGNETIC BODY FOR PREVENTING BIRD INJURY, AND SUSPENSION TYPE BIRD-REPELLING EQUIPMENT UTILIZING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a magnetic body for preventing e.g. damages due to various wild birds coming flying in a group, newly designed to highly influence, in particular their geomagnetism-sensing ability considered to govern their location recognition and homing instinct and ensure bird injury-preventive effect to be afforded over a long period because wild birds are hard to be acclimatized to the above influence, and to provide a suspension-type bird injury-preventive equipment using the above magnetic body. ;SOLUTION: This magnetic body for preventing bird injuries has such a scheme that a magnetic body itself M is formed by uniting two ferrite magnet pieces 1 so that their identically polar faces are confronted with or abutted on each other, thereby both the outside faces of the magnetic body itself M represent the identically polar faces opposite in polarity to the above faces, and the magnetic field close to the outer periphery of the magnetic body itself M is formed so as to excite or amplify the magnetic force on both side zones divided by a zone of magnetic force zero formed at a site a specified distance apart from the outer peripheral edge of the magnetic field.;COPYRIGHT: (C)1999,JPO