Coupling unit for connecting poles in an end-to-end relationship

摘要: The plastic coupling unit includes oppositely directed tubular body portions, each having a circular opening at one end leading into its bore for receiving therein of pole. Each portion is provided with resiliently mounted tongue carrying free latch member that projects through rectangular side so as to be engageable notch in the inserted A longitudinal key contained and pole has keyway key. In addition, bores are formed resilient ribs sawtooth splines thereon press against two ends firmly held by unit. Any number units can employed order connect desired poles an end-to-end relationship.