| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cover capable of expanding by a plurality of cover elements provided with sliding support legs at both sides. <P>SOLUTION: The cover is constituted of a plurality of cover elements 12a, 12b provided with sliding support legs 21b, 23b at both sides. A guide having two oblique traveling passages are provided at respective sides in an accumulation end. The cover elements can be arranged in piles. The track is single laid along the longitudinal traveling passage (along the side face of a covered zone ). The cover is formed of a something sufficiently flat support face and meanwhile, in each proximity or rear element 12b in an expanded state, a remote position or the front end 12b position in the remote element or the right front ellement 28b and the rear end edge stops in a state that it positions on the track through the support leg. <P>COPYRIGHT: (C)2004,JPO |
