To facilitate the pulling out of a plurality of sliding parts from a fixed part by a method wherein a driving motor which is attached to the fixed part slide-drives the sliding part on the first stage, and interlinked slide-driving parts which are attached to the sliding parts on specified stages from the second stage and higher, slide-drive the sliding parts of the next stage.

This multistage slide-driving mechanism has a long-sized fixed part 2. In addition, a sliding part 3 for the first stage is slidably attached to the fixed part 2, and a sliding part 4 for the second stage is slidably attached to the sliding part 3 for the first stage, and N pieces of sliding parts to which sliding parts for the next stages are attached, are provided in the same manner. A slide-driving part 10 is attached to the fixed part 2, and by the driving of a driving motor 50, the sliding part for the first stage is slide-driven. An interlinked slide-driving part 40 is respectively attached to the sliding parts from the second stage to the (N-1)th stage, and the interlinked slide-driving parts 40 respectively slide-drive the sliding parts for the next stages.