| 摘要 |
PURPOSE:To enable a shelter to be unloaded by itself for shortening working time and improving the operability of a truck by providing a compact jack on an end of an arm and compact jacks on both lower sides of a shelter body respectively. CONSTITUTION:A level jack 4 holds a shelter 1 horizontally and a first rotatable arm 5 is housed in the side wall of the shelter 1. Also, a second arm 7 is provided to be housed in the side wall of the shelter 1 and second fixedly by fittings 10. Further, a stay jack 13 is provided which is used in lifting the shelter 1. This jack 13 is lowered until a gap is produced between a truck 3 and the shelter 1, and the shelter is lifted. Then, truck 3 is withdrawn and the weight of the shelter is supported on the ground. Next, after the shelter 1 is lowered and the jack 13 completes its contraction a level jack 4 is lowered and the shelter is installed when the whole weight of the shelter is supported on the ground. |
