As shown and embodied in FIG. 1, the upper section of frame 38 is mounted on a shaft 69 from a pin 84. Shaft 69 is positioned in a rigid record displaying 70 (not displayed at length) possessing a top to bottom axis 72. Displaying 70 is repaired to aid beam 44 and allows framework 38 to turn in the group of friends alongside path 56 and approximately vertical axis of stretch wrapper in accordance with a floor 48 and help 43. Support 43 is freestanding on floor 48, but immovable relative to floor 48 during operation of stretch wrapping machine 20. Displaying 70 will also support structure 38 from above, thus protecting against straight translational motion of structure 38. By serving as a pivot point for frame 38, support 43 guides frame 38 along path 56 around the load 22.
According to the present invention, drive means are attached to the lower portion of the frame means for engaging a floor, supporting the frame means from below, and driving the frame means on the floor along the path around the load. It can be more suitable how the push signifies includes a electric motor-pushed tire which engages the floor. Furthermore, it is more suitable how the engine-driven wheel rotates in regards to a horizontal axis which intersects mentioned top to bottom axis. It additional is preferable that the free of charge-wheeling tire is attached to the lower area of the frame method for interesting the ground and stabilizing the structure means about the horizontal axis of the motor-motivated tire.
As greatest shown and embodied in stretch wrapping machine, the travel signifies contains a motor-driven tire which engages the ground 48 and contains rubberized traction tire 74 which rotates with regards to a horizontal axis 76. As demonstrated in FIG. 3, horizontal axis 76 intersects top to bottom axis 72 so that whilst wheel 74 is translationally resolved relative to body 38, it brings frame 38 together route 56 in a group. As best proven in FIG. reducer, motor and 4 78 are attached to tire 74 to rotate tire 74 to ensure that frame 38 is powered around course 56.
A totally free-wheeling wheel 80 is attached to structure 38 by a caster connector 82 that allows totally free-wheeling tire 80 to pivot and be aimed alongside route 56 as shown in FIG. 3. Totally free-wheeling tire 80 is spread out angularly from electric motor-driven wheel 74 about path 56 and engages the floor and stabilizes the frame 38 about horizontal axis in wrapper.