| 摘要 |
PROBLEM TO BE SOLVED: To provide a stepladder permitting to carry out a work safely and efficiently by a plurality of workers. SOLUTION: This stepladder comprises a left ladder 3 installed to a left side portion of a head body 2 for supporting a top of the head body 2 in a rotatable manner to the left side; a right ladder 4 installed to a right side portion of the head body 2 in a rotatable manner to the right side portion of the head body 2; a rod member 5a supporting the top installed in a rotatable manner to a front side of the head body 2; foot rest bar supports 6a to 6e installed to the rod body 5a at proper intervals in an up and down direction; foot rest bar supports 8a to 8e installed to a rod portion 7a of the left ladder 3; foot rest bar supports 10a to 10e at ladder side which are installed to a rod portion 9a of the right ladder 4; and foot rest bars 11a to 11e and 12a to 12e which are held by foot rest bar supports 8a to 8e at the ladder side and also by foot rest bar supports 10a to 10e at the ladder side for forming the ladders. COPYRIGHT: (C)2008,JPO&INPIT
|
