초록 ▼

A lifting truck is provided with a folding rail assembly for confining workers to an elevated platform. The folding rail assembly includes a plurality of link members pivotally connected relative to the platform and to a protective railing structure. The link members permit movement of the protectiv

A lifting truck is provided with a folding rail assembly for confining workers to an elevated platform. The folding rail assembly includes a plurality of link members pivotally connected relative to the platform and to a protective railing structure. The link members permit movement of the protective railing structure between a lowered position and an elevated position relative to the platform. One or more latch members are pivotally connected with respective link members for preventing movement of the railing from the elevated position. The latch members are configured to allow the railing to be lifted directly to the elevated position. The latch members comprise handles for exerting an opposing force against the bias of a spring for releasing the latch members to permit the railing to be lowered after use.

대표청구항 ▼

An apparatus, comprising: a support base; a horizontal platform for supporting a person standing thereon above the support base; elevating means connected between the support base and the platform for positioning said platform at a desired elevation above the support base; a railing assembly definin

An apparatus, comprising: a support base; a horizontal platform for supporting a person standing thereon above the support base; elevating means connected between the support base and the platform for positioning said platform at a desired elevation above the support base; a railing assembly defining a periphery about the platform for confining the person supported on the platform; a plurality of link members for supporting said railing assembly above said platform, each of said link members being pivotally connected at one end with said railing assembly and pivotally connected relative to said platform at the other end for allowing movement of said railing assembly to a position elevated above the platform from a relatively lower position; and latch means having a pivotal connection with one of said link members for preventing movement of said one link member when said railing assembly is positioned at the elevated position above said platform, whereby a person standing on the platform is inhibited from falling off of the platform, said latch means comprising a latch member connected to said pivotal connection having a slot formed therein, and a guide member positioned to slide along the slot during movement of the railing assembly.