| 摘要 |
This reservoir tank (A1) is provided with a tank body (10) and a filter (20) housed in the tank body. The tank body (10) has a thermoplastic resin upper body (11) and lower body (12). The filter (20) has a thermoplastic resin frame (21), which is inserted into an opening (12a) of the lower body (12) with a gap therebetween, and a filter body (22), which is assembled to the frame. Joining sections (11a, 12b, 21a) are melted by contact with a hot plate (30) and welded to each other after removal of the hot plate (30), and are provided to a lower-edge opening periphery (11a) of the upper body (11), an upper-edge opening periphery (12b) of the lower body (12), and an edge (21a) of the frame (21). An engaging part (21b) prevents the filter (20) from becoming misaligned with the lower body (12) when removing the hot plate (30), and is provided to the frame (21). |
