| 摘要 |
PROBLEM TO BE SOLVED: To keep an obstructive resistance in a minimum limited state and improve a performance of an air cleaning filter by a method wherein positions of reinforcing beams arranged at a front surface and a rear surface are coincided to each other under a state as viewed from their front elevational view and at the same time a sectional shape of the reinforcing beam is formed into a stream-line shape. SOLUTION: A storing case 1 for an air cleaning filter is made such that the storing case 1 is molded by a resin molded product, it is formed by its front surface and rear surface, it is folded as its central part to hold an air cleaning filter 2. A claw or the like is engaged with its closed part and fixed to cause the air cleaning filter 2 to be stored in the storing case 1. This storing case 1 is made such that a sectional shape of its reinforcing plate is made into a stream-line shape and positions of the reinforcing beams at the front surface and the rear surface are coincided to each other. With such an arrangement as above, it is possible to reduce an obstructive resistance in an air circuit and to improve a noise reducing performance. |
