< Topic >As at the time of stripping breaking off from the rope of the scallop in the time of harvest of the scallop, the person in charge stopping pin is made breaking off removable simultaneously from the rope, at the time of the person in charge stopping pin inputting to the rope, the person in charge stopping pin of the scallop which can do inputting smoothly and securely is offered.SolutionsWhen in rim between rope lock piece 6,6 of person in charge stopping pin 1, the power which is larger than weight of the scallop which is in the midst of rearing spent on the person in charge stopping pin, the fragile site 7 which is broken one or it forms the multiple possessing and the fragile site, with the region where the cross section area is smaller than general section 51 of the frame 2(5), multiple emission walls 74 of one body where the small region, from the general section of the frame and center 71 of one body and the center extends to radial pattern, is connected in the general section of the frameWith the person in charge stopping pin for the scallop cultivation which consists of.< Choice figure >Drawing 2【課題】帆立貝の収穫時における帆立貝のロープからの扱き離脱時に、同時に係止ピンをロープから離脱除去可能とするとともに、ロープへの係止ピン打ち込み時に、打ち込みが円滑、確実に行える帆立貝の係止ピンを提供する。【解決手段】係止ピン1のロープ抜止片6,6間の外周に、育成中の帆立貝の重さよりも大きい力が係止ピンに掛かった時に破断する脆弱部7を一つ又は複数有し、脆弱部は、軸部2(5)の一般部51よりも断面積が小さい部位で形成し、小さい部位は、軸部の一般部と一体の中心部71と、中心部から放射状に延び、軸部の一般部に連なる一体の複数の放射壁部74…とからなる帆立貝養殖用の係止ピン。【選択図】図2
