| 摘要 |
PROBLEM TO BE SOLVED: To improve the durability of an apron conveyer.SOLUTION: A shot treatment device 10 includes: plural rotation shaft members 18-20 mutually disposed in parallel; and an apron conveyer 24 that includes a caterpillar 48 having plural caterpillar members 52 circularly arranged and is circularly supported by the plural rotation shaft members 18-20 so as to form a flexural portion 70 in the caterpillar 48 vertically downward between a set of rotation shaft members 18 and 19; and a projection unit 26 for projecting projectiles toward a work placed on the flexural portion 70. This makes it possible to configure each of the plural caterpillar members 52 robustly, improving durability of the apron conveyer 24 compared to the case of using, for example, an elastomer belt for the apron conveyer 24. |
