| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a combination balance capable of simply switching between a specification having a spring with a function of closure energization for a gate and a specification having no spring without the function of closure energization for the gate.SOLUTION: In a hopper including: a hopper body 16; and a discharge gate 17 oscillating in a freely openable/closable manner, a link mechanism 18 for gate opening/closing operation is equipped to support frame parts 16d, 16e projected from the hopper body 16, and an energization spring 28 for energizing the discharge gate 17 in a closure direction is equipped in an attachable/detachable manner to the link mechanism 18. The hopper performs closure operation of the discharge gate 17 according to attachment/detachment of the energization spring 28.</p> |
