FILTER

摘要

PURPOSE: A filter is provided to reduce disposal cost by having simple and cheap structure. CONSTITUTION: A filter comprises quadrangular filtering parts and supports. Supports have grids arranged lengthwise and crosswise to increase the inherent stability of a filter. Supports have square-shaped spaces to join with film hinges. The different hinges cross each other. Supports have a film hinge hinged to concave the surface of an axis one by one. The hinged parts are bonded or welded. A cover is attached to axis with the same material of filtering parts or supports.