| 摘要 |
PROBLEM TO BE SOLVED: To provide a working platform capable of maintaining the state without having shaking and rattling, over a long period of time. SOLUTION: This working platform includes: a scaffolding board, the front side of which serves as a working floor surface; a pair of supporting legs which are attached to both ends of the scaffolding board, respectively, and which can be turned between a leg-opened attitude wherein the supporting legs are opened at a predetermined angle with respect to the scaffolding board and a leg-folded attitude wherein the supporting legs are folded almost in parallel with the scaffolding board; and a fixing mechanism which comprises a fixing plate attached to an end of the scaffolding board, a rotating plate attached to an upper end of the supporting leg, and a stopper pin capable of being inserted through the pinholes formed in both the plates, and which can hold the supporting leg in the leg-opened attitude and the leg-folded attitude by inserting the stopper pin through the pinholes overlapping each other. In the fixing mechanism, a leading end of the stopper pin is formed in a tapered shape while a bush with an inner peripheral surface corresponding to the shape of the leading end of the stopper pin is arranged in the pinhole. COPYRIGHT: (C)2011,JPO&INPIT
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