| 摘要 |
PROBLEM TO BE SOLVED: To share one supporting device among a plurality of kinds of attachment members having different width dimensions.SOLUTION: Stands A1, A2 of which the width is adjustable, are comprising a pair of support members S1, S2 juxtaposed on the ground at an interval therebetween in a width direction of an attachment member, and a connection member 8 which connects both the support members S1, S2 in a plurality of relative positional relationships between both the support members S1, S2. The stands A1, A2 are coupled by coupling members 21, 21 which are mounted rotatable around longitudinal shafts 23, 23, thereby configuring a supporting device which supports the attachment member at both front and rear sides. |
