| 摘要 |
PROBLEM TO BE SOLVED: To suppress the wears of a water supply port and a port support.SOLUTION: If a water supply port 52 is placed in a recess 61 of a body part 56, a first opposing plain face 83 of the water supply port 52 faces a first plain face 61a of the recess 61. Moreover, a second opposing face 84 of the water supply port 52 faces a second plain face 61b of the recess 61.SELECTED DRAWING: Figure 7 |
