초록 ▼

The innermost end of a platform is pivotally connected to an implement adjacent upright sidewall structure which supports moving parts that normally are shielded but from time to time require inspection and service. The platform is rockable between a horizontal access position and a vertical shieldi

The innermost end of a platform is pivotally connected to an implement adjacent upright sidewall structure which supports moving parts that normally are shielded but from time to time require inspection and service. The platform is rockable between a horizontal access position and a vertical shielding position. A door or shield is connected to the outer end of the platform, and four-bar linkage structure maintains the door in an upright position to provide a railed work station for the operator when the platform is in the horizontal position and a generally continuous upright shield structure when the platform is in the vertical position. The four-bar linkage structure includes upper and lower links which contact each other when the platform is horizontal to support the platform without need for obstructive braces or the like.

대표청구항 ▼

In an implement having upright structure supporting operable elements during operation, movable shield structure comprising: linkage structure rockably connected to the implement adjacent the lower portion of the upright supporting structure and movable between an upright position and an outwardly e

In an implement having upright structure supporting operable elements during operation, movable shield structure comprising: linkage structure rockably connected to the implement adjacent the lower portion of the upright supporting structure and movable between an upright position and an outwardly extending position; an upright shield having upper and lower ends; and means connecting the lower end of the shield to the linkage structure for rocking therewith between a shielding position adjacent the operable elements and an access position offset from the elements as the linkage structure moves between the upright and outwardly extending positions, respectively, wherein said linkage structure includes means for maintaining the shield upright in both the shielding and access positions.