Provided is a connector for an animal, the connector having a stopper mechanism for enabling or disabling a slide bar to be pushed back. The connector for an animal SHL1 - SHL7 comprises a hook member a stem portion SL extending from an end of the hook member in a first direction Ds a slide bar Sb for being reciprocated in the first direction to open or close the hook member a lock member L1-L7 for being installed around the stem portion to rotate therearound with the first direction as a rotation axis and an operating member Kn for being connected to the slide bar so as to protrude in a second direction perpendicular to the first direction, the lock member including a cylindrical member CL1 - CL6 with a cylindrical space formed therein for housing the stem portion rotatably and projection Pr1, Pr4, Pr5, Pr6, Pr7 extending from a part of the hook member side end of the cylindrical member toward the hook member by a predetermined length, the projection facing to at least a part of the operating member or not when the lock member is rotated.提供一種動物用的連結具,其具有防止或者可能使滑桿被回推之制動器機構。動物用的連結具SHL1~SHL7,其具備有:鉤部;軸部SL,其自鉤部之端部而延伸於第一方向Ds;滑桿Sb,其藉由沿著第一方向進行往返移動而對鉤部進行開閉;鎖止構件L1~L7,其以第一方向作為軸而以可轉動之方式安裝於軸部之周圍;及操作部Kn,其連結至滑桿,且朝向相對於第一方向而突出於垂直之第二方向,且鎖止構件係包含有:筒狀部CL1~CL6,其形成有以可轉動之方式將軸部加以收納之圓柱狀的空間;及突出部Pr1、Pr4、Pr5、Pr6、Pr7,其自筒狀部之鉤部側端部之一部分而以朝向鉤部之方式延伸僅既定之長度,突出部係藉由鎖止構件之轉動而與操作部之至少一部分呈對向或者不對向。CL1‧‧‧筒狀部Dr‧‧‧轉動方向Ds‧‧‧軸向GSL‧‧‧溝Ho‧‧‧鉤部HP‧‧‧扣鉤部Kn‧‧‧操作部Kna‧‧‧把手部Knb‧‧‧連接部L1‧‧‧鎖止構件PMD‧‧‧大徑部Pr1‧‧‧突出部Rb‧‧‧背部Re1‧‧‧座部Sb‧‧‧滑桿Sh1‧‧‧半殼體Sh1r‧‧‧半殼體SHL1‧‧‧連結具SL‧‧‧軸部
