| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pole joint capable of surely joining poles to be used to support planted ivy, capable of connecting each pole in various posture, and easy to spread a net and to fix a film to protect young plants from damages by birds and frost. Ž<P>SOLUTION: A pair of cylindrical bodies 1 and 1 having a required inner diameter and a required length are connected to each other freely to change their connecting posture in connecting portion 2 in the peripheral surfaces thereof, and push screws 1a and 1b are screwed to each of the cylindrical bodies 1 from the peripheral surface to the shaft center thereof, and a slit 1c is provided in one cylindrical body 1 and/or the other cylindrical body 1 to pass through between both opening ends 1d. The connecting portion 2 is formed of a shaft rod 2a having a come-out preventing portion protruded from the peripheral surface on a crossing axis crossing the shaft center of one cylindrical body 1, and a shaft hole 2b having a come-out preventing portion recessed in the outer peripheral surface on a crossing axis crossing the shaft center of the other cylindrical body 1, and the connecting portion 2 can rotate at 360° by fitting both of the shaft rod 2a and the shaft hole 2b. Besides, the pair of cylindrical bodies 1 and 1, in which a crossing angle of the shaft center is fixed in a range at 0°-90° by a fixed connecting portion 3, can be provided. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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