[Nyororin]

It looks more like they`re asking about it being used for cleaning or something like that to me. The example sentences seem to be throwing everyone off as they`re unrelated to the question, really.

I can`t think of an example off the top of my head where しまいます is used on it`s own, but think of the pattern しまっておきます. Or しまってあります.
They are used all the time in relation to cleaning and putting things away.
ホウキはクロゼットに片付けてある。 = ホウキはクロゼットにしまってある。

Or at least it does around here. I would feel really weird using the first sentence.