| 摘要 |
PURPOSE:To make it easy to execute a filter mounting without using a ventilator filter by forming an engagement setting hole by notching a thin section formed on a decorative cover and by executing an engagement setting of an engagement setting nail formed in a filter frame against an engagement setting hole. CONSTITUTION:At a back surface near four corners of a decorative cover 3, a groove section 6 consisting of a thin section for an engagement setting hole, is formed and by executing a pressure pressing of an inner side enclosed by this groove section 6, easily the groove section 6 can be notched, and an engagement setting hole is formed with a projected state. In the vicinity of four corners of a filter frame 10, toward an outside an engagement setting nail 12 is set with a projected state. These engagement setting nails 12 respectively respond to engagement setting holes formed in the vicinity of the four corners of the decorative cover 3, and by executing an insertion engagement setting of these engagement setting nails 12 into respective engagement setting holes 7, easily a filter 9 can be mounted and a general type ventilator can be used as a ventilator with a filter. |
