| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fixture structure in which a cover does not drop from a main body and provide a hot water supply device.SOLUTION: A cover is fixed to a main body by using a screw 31 having a shank of which diameter is smaller than a thread hole and formed with a groove longer than its depth between an extremity end side thread part 31a and a base end side thread part 31c. In this case, spaced-apart distances F, F' between the thread holes 21f and 21g on a bracket 21e are defined as E+H'+Ftanθ, E'+H+F'tanθ'<A', whereθ,θ' are angles in which the cover 22 can be inclined in respect to the bracket 21e (main body 21), A, A' are sum of a length of the base end side thread part 31c and the groove 31b of the screw 31. With this arrangement as above, even if the cover 22 is inclined in respect to the bracket 21c (main body) while the screw 31 is applied as an axis, the portion near an opening 22f at the front surface 22a of the cover 22 is not spaced apart from the thread hole 21f by more than distances A, A', so that the extremity end side thread part 31a enters the thread hole 21f and is not pulled out of it and the cover 22 is always engaged with the screw 31.</p> |
