EXPANSION AUXILIARY TOOL FOR COVERING MATERIAL OF PLASTIC GREENHOUSE

摘要

PROBLEM TO BE SOLVED: To provide a method for expanding a covering material capable of expanding the covering material by one worker without soiling the covering material with soil in expanding a covering material such as a vinyl film in a plastic greenhouse, and an expansion auxiliary tool therefor. SOLUTION: This expansion auxiliary tool T1 has an arch side taking in part material 1 having detachable hooking tools 30 and 31 on the arch part material, a beam side taking in part material 2 having a hooking part material 32 detachable to a beam part material, a loading part 4 capable of loading a vinyl film and a guarding part 5 wherein the vinyl film loaded on the loading part 4 not to be off. The expansion auxiliary tool T1 is fitted to a part on which the beam part material 2 crosses with the arch part material 1. Next, the vinyl film is expanded between the expansion auxiliary tools T1 and loaded. Then, the vinyl film is expanded from one end side in a long direction of the vinyl film to the direction in which a roof part of the arch part material is covered.