To provide a drawer step-eliminating mechanism capable of effectively utilizing the under-floor of a housing and easily allowing a load and a person to gain an access even to the openings other than an entrance.

This step-eliminating mechanism comprises a drawer body storage part, a drawer body so stored in the storage part as to be extracted and inserted horizontally, a lifting floor part formed at the end of the drawer body in the extracting and inserting directions, and a lifting mechanism lifting the lifting floor part. The drawer body storage part is installed under the floor of a building. The drawer body and the lifting floor part are so stored therein as to be extracted and inserted. The lifting mechanism horizontally holds the lifting floor part, and raises it by rotating vertically.

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