| 摘要 |
A collapsible scaffold has a platform 11, folding legs 12 and a guardrail 13, wherein the angle of the legs to the platform when in use is variable. The guardrail preferably comprises two side frames 14 pivotally mounted on the platform and foldable about a second axis parallel to the first pivot axis. The first pivot axes of the two side frames may be at slightly different heights to allow compact folding. Each side frame may also carry an end gate 15 pivoted by a collar 29 on one end thereof and latchable onto the other side frame. Preferably each end gate is stowed flat against an upper part of the side frame. The deck platform 11 may have vertically extending corner posts 18 from which the guardrails pivot. Each corner post preferably houses a pin which comprises the first pivot axis and a recess for a second pin which may hold the gate vertical, the gate being vertically slidable to release the second pin. Vertical gate bars are preferably curved to accommodate the horizontal bars of the side frame when collapsed. The folding legs 12 are preferably pivotally mounted on the corner posts and are preferably telescopically extensible, being pinned at a desired length. The pin may comprise a spring-loaded internal pin or alternatively an external spring clip held pin. A support stay 34 may be provided to hold each leg at a predetermined angle. The stay preferably has a number of slots to provide different leg angles. The legs, preferably mounted in pairs by a horizontal bar which acts as ladder rung, may be pivotally mounted on the platform for folding flat. The guardrail may be demountably supported in sockets on the upper end of the corner posts. The folded scaffold is preferably adapted for compact stacking. |
