Abstract: An automatic package strapping machine having a sliding plate movable in a table between a forward position and a rearward position, a first clamp under the forward position of the sliding plate and movable up and down to press a leading end of a strap inserted under the sliding plate from one side of the sliding plate against the under side thereof, a second clamp under the forward position of the sliding plate and movable up and down to fix a part of the strap extending thereover and the leading end of the strap against the under side of the sliding plate, a pressing device under the forward position of the sliding plate and movable up and down for cutting the strap as the pressing device is moving up relative to the first clamp and for pressing the part of the strap and the leading end thereof against the under side of the sliding plate, a heater for, in a forward position, being held between the part of the strap and the leading end thereof and fusing surfaces of the part of the strap and the leading end

Abstract: In a package strapping machine, a plate type pivotal member is adapted to turn pivotally on a main shaft held on the base plate of the machine in parallel with the direction in which a strap is forwarded. Two clamps and a pressing device are mounted on a surface of the pivotal member and adapted to move up and down so as to be adapted to press the strap against the under surface of a lateral projection provided on the upper free end of the pivotal member. In cooperation with a sidepiece secured to the under surface of the top board of the machine, the pivotal member serves to prevent the strap from breadthwise deviation.

Abstract: An apparatus for regulating the tension of a strap wound around a package on a package strapping machine. The apparatus has a frame having a package support surface provided with a strap guiding frame into which the package is inserted and into which the strap is fed to form a strap loop around the package, a driving roller rotatably mounted on the frame for bearing against the strap and rotatable in a direction for tensioning the strap to tighten the strap around the inserted package, a press roller movable toward and away from the driving roller for holding the strap in driving engagement against the driving roller or releasing it therefrom, the press roller pressure being adjustable.