| 摘要 |
PROBLEM TO BE SOLVED: To constitute a leg body so that legs can be simply, easily and compactly closed, for securing safety of work in use, on a stepladder type workbench for installing a floor top plate in a freely opening-closing leg body, and forming a work space of an extension column part of the leg body extended above the floor top plate.SOLUTION: A first leg body (2) and a second leg body (3) having respectively columns on the left-right, are connected by pivotal joining means (4) of a biaxial form for constituting first pivotal joining means (11) and second pivotal joining means (12) in a mutually separated state, and are constituted so as to close legs up to becoming a parallel state by approaching both leg bodies (2) and (3) when lifting the first leg body (2) from a leg opening state, extension column parts (2b) and (3b) of both leg bodies for forming a work space are mutually connected-supported by brace means (25), and the brace means is expanded in a straight line shape in the leg opening state, and is constituted so as to fold up the brace means upward in a leg closing state.SELECTED DRAWING: Figure 9 |
