AUTOMATISCHE BIND- EN SLUITMACHINE.

摘要

An automatic strapping machine is disclosed wherein strap is fed at a high rate of speed about a package so as to form a loop which is then tensioned and sealed. The loop is formed so that the leading end of the strap is overlapped by a trailing end of the strap and the resulting overlapped strap portions are joined together so as to form a seal which is not susceptible to snagging. The distal end of the overlapping strap end portion is urged against and is moved back and forth relative to an underlying strap portion in tension at a high rate of speed so as to generate heat therebetween and to form a friction-fused joint. During joint formation the strap loop about the package is in tension, but the strap end portion overlapping the loop is relaxed, i.e., not in tension.