| 摘要 |
A V-shaped hopper is comprised of a pair of opposing linkages each formed of a lower angularly disposed rectangular plate hinged to an upper angularly disposed rectangular plate to form a hinged corner joint. Each linkage is mounted on a vertical sidewall of a rectangular opening with the bottom of its lower rectangular plate pivotally connected to the bottom thereof and with the top of its upper rectangular plate confined by retaining means thereon to move along the vertical plane thereof. Limiting means is also provided to limit the downward movement of opposing linkages when their hinged corner joints lie adjacent to each other. Upon dropping a plurality of dough balls into the V shaped hopper formed by the upper rectangular plates of the opposing linkages, one settles in the V bottom thereof and the others thereover. As a cup carried by an elevator chain is moved up along a vertical path aligned with the V bottom of the hopper, the sides of the cup contact the opposing lower rectangular plates causing the hinged corner joints of the linkages to spread apart to permit the cup to lift the dough ball thereat out of the hopper. Once the cup moves through the open bottom of the hopper, the opposing hinged corner joints return to lie adjacent to each other and the remaining dough balls in the hopper resettle therein with one in the V bottom thereof and the others positioned thereover.
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