AGRICULTURAL AND HORTICULTURAL COLUMN JOINT, AND AGRICULTURAL AND HORTICULTURAL ARCH COLUMN USING THE SAME

PROBLEM TO BE SOLVED: To provide an agricultural and horticultural column joint capable of surely fixing a column with a simple structure. SOLUTION: The column is inserted into and connected to a first cylindrical part 11 and a second cylindrical part 12 formed in both end parts of a cylindrical joint body, respectively and a notch groove 14 in the vertical direction is formed in a plurality on a peripheral wall of the first cylindrical part 11, and is divided into divided pieces 15. While arranging a fastening groove 17 in a spiral shape in the circumferential direction on an outer peripheral surface 16, a triangular projection is arranged on an inner peripheral surface of a fastener. When the fastener is rotated and moved along the projection fitted in the fastening groove 17, the peripheral wall of the first cylindrical part 11 is pushed inside, to press a column outer surface. and an inner peripheral surface of the fastener is also formed with an inclined face corresponding to an inclination of an annular projection 20, and since the inclined face of the fastener is formed as to press down an inclined face 19 of the annular projection part 20 of the joint body, a joint can be constituted so as to be fixable only by rotating the fastener 2 in the circumferential direction. COPYRIGHT: (C)2011,JPO&INPIT