초록 ▼

A hopper discharge device including a hopper with discharge opening, a pair of door support guides, a door slidingly engaging the guides for opening and closing the hopper discharge opening and a rotatable shaft with one or more sprocket wheels adapted to engage the door in rack and pinion manner fo

A hopper discharge device including a hopper with discharge opening, a pair of door support guides, a door slidingly engaging the guides for opening and closing the hopper discharge opening and a rotatable shaft with one or more sprocket wheels adapted to engage the door in rack and pinion manner for opening and closing the door. The door is provided on its undersurface with one or more longitudinally extending channel members, each channel member containing a section of roller chain therein. The sprocket wheels mesh with the rollers of the flexible roller chain to prevent build-up of ice, dirt, grain particles, and other debris in the sprocket wheel\s contact with the chain. A wear strip of anti-friction material on the door facilitates the opening and closing of the door.

대표청구항 ▼

A hopper discharge device comprising: a hopper having framework defining a discharge opening; a door support secured to the framework; a door slidably mounted on said door support for opening or closing the discharge opening of said hopper, said door provided said channel members carrying a roller a

A hopper discharge device comprising: a hopper having framework defining a discharge opening; a door support secured to the framework; a door slidably mounted on said door support for opening or closing the discharge opening of said hopper, said door provided said channel members carrying a roller assembly, said roller assembly including a plurality of evenly spaced and longitudinally aligned rollers, wherein each of said channel members is substantially inverted U-shaped in cross-section and wherein each of said channel members include a pair of opposing horizontally extending legs defining a longitudinal slotted opening operable to receive a sprocket wheel, said legs operable to support links of said roller chain section and wherein each of said channel members include a pair of shelves operable to control upward movement of the links of said roller chain section; a horizontally extending shaft rotatably mounted outwardly adjacent each of said channel members; and at least one sprocket wheel secured to said shaft, each of said sprocket wheels meshing with the respective rollers of each channel member for opening or closing said door upon rotation of said shaft.