There is provided a novel device for preventing the fall of the mounting material from falling due to vibrations such as an earthquake, without using an electrically operated member as a component. The left end is connected to the left axis 15, which is pivotally supported by the left axis 13 disposed in the front middle part or the rear middle part, and the right end is the right axis disposed in the front middle part or the rear middle part. As the load of the mount W is supported by the load-bearing member 17 connected to the bypass section 16, which is pivotally supported at (14), and supports all or part of the load of the mount W, the above When the left rotation section 15 and the right rotation section 16 rotate, the fall prevention member 45 descends or rotates, and when the fall prevention member 45 descends the most, it is located on the front side of the mounting object W. The fall prevention member 45 is provided, and when the fall prevention member 45 descends or rotates the most, an insertion space into which the mounting means for lifting is inserted from the front side is formed below the fall prevention member 45.
展开▼
