| 摘要 |
PROBLEM TO BE SOLVED: To integrate equipment required for an opening/closing upper guard as one component to achieve the improvement of assembling efficiency, the reduction of cost, and the reduction of an occupied space.SOLUTION: A lower bracket 8 for attaching a lower hinge 6 which becomes an opening/closing fulcrum of an upper guard 2 is attached to the lower front part of the lower hinge 6 on the side of the opening/closing fulcrum of the upper guard 2. Meanwhile, a stay 14 for holding the upper guard 2 in an open state is attached to the upper guard 2 with a base end side as a fulcrum such that the stay 14 is rotatable between a protruded state for holding the upper guard 2 in the open state and a housing state for housing the upper guard 2 in the closed state. A hinge attachment part 11 to which the lower hinge 6 is attached, stopper parts 9, 13 for abutting with the upper guard 2 when the upper guard opens and restricting the maximum opening angle, and a stay receiving part 10, 12 with which the tips of the stay engages in the protruded state are integrally provided in the lower bracket 8. |
