| 摘要 |
PROBLEM TO BE SOLVED: To provide a rock bolt stock and take-out unit capable of automating the rock bolt take-out at a high speed, a stock and take-out apparatus and a supply apparatus. SOLUTION: At first, a retaining pin 15a is projected out and a retaining bracket 27a is moved to a supporting position. In this state, a plurality of rock bolts 6a stacked in a stock portion 7a are supported by each rock bolt 6a at the lowest position by a projected retaining pin 15a, and the falling of the whole can be avoided. Thereafter, when a retaining pin 15a is depressed, a lock bolt 6a at the lowest position falls down and is supported by the retaining bracket 27a at the support position. In this way, a plurality of rock bolts stacked inside the stock portion 7a drop to a lower position just like a tumbling barrels. Thereafter, the retaining pin 15a is projected out again and supports a load the lock bolt 6a above it, thereby prohibiting the load given to the rock bolt 6a supported by the retaining bracket 27a. Lastly, when the retaining bracket 27a is moved to a load releasing position, the rock bolt 6a freed from the load is released downward and taken out.
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