| 摘要 |
PURPOSE:To realize small-sized general-purpose constitution of low cost, by equipping a latch plate with a recessed part, and setting the latch plate on a moving body so as to make the pivotary movement outside a moving line possible. CONSTITUTION:In order to perform the initial opening and the final shutting of a closing door 2, an air cylinder 6, which is a driving source of a moving body 5, is fixed to the closing door 2 of a shieding box 1. A latch plate 9 is axially retained to the tip of the moving body 5 via a fork 7, so as to make pivotary movement possible. A recessed type notch 14 is formed on one end- surface of the plate 9. The interval of level-differences of the notch 14 has a size sufficient to absorb the movement error of the door 2 at the time of opening and shutting. Further, at the top-end of the plate 9, an inclined part 17 is formed on the door 2 side. Hence, the neck of the plate 9 is made to swing, while the interference between the shutting locus of the door 2 at the time of shutting and the locus of reciprocating motion of the plate 9 is relieved. Thereby it is made easy for the door 2 edge to rush into the recess type notch. |
