PACKING WASHER FOR COLOR SHEET COUPLING DEVICE

摘要

PURPOSE: A packing washer for a color sheet coupling device is provided to expand life span and an exchange period of the color sheet by installing the packing washer around a fastening hole. CONSTITUTION: A packing washer(8) includes a planar packing and a curved packing which are integrally formed with each other. An insertion hole(8a) is formed at the center of the packing washer(8). A screw section of a hook bolt is inserted into the insertion hole(8a) of the packing washer(8). The packing washer(8) is attached to a color sheet by means of a nut. A protect cap is provided for protecting the packing washer(8). An area of the packing washer(8) covered by the protect cap is smaller than a rectangular area formed at the center of the packing washer(8).