| 摘要 |
PROBLEM TO BE SOLVED: To prevent difficulty of joint due to contraction deformation of a sink and impairment of the appearance around an opening in a joint state.SOLUTION: A plurality of expansion parts 13 projects at intervals in a longitudinal direction on the rear surface of a flange 11 of the sink 7. A long reinforcing member 22 is attached on a back lateral side of an opening of a top plate 3. A long bracket 23 having a first plate 25a is fixed to the plurality of the expansion parts 13 on one end side in a width direction along the longitudinal direction of the flange 11, and the first plate 25a is attached to the reinforcing member 22 along the longitudinal direction. |
