| 摘要 |
<p>PURPOSE:To open a door in all vertical and lateral directions by enabling each pair of spherical bodies provided on each side edge of the front door of a unit box to advance and retreat between locking and retreating positions, and providing a lock hole on the fixed side of an opening part. CONSTITUTION:When a door 12 is closed, in a locking part 14 of each side edge of the door 12, each spherical body 15 is fitted to a corresponding lock hole 18 and pressed into the lock hole 18 by the elastic force of a cushion material 17 to hold the door 12 in closed position. When a right handle 13 is pulled to this side, a comparatively large force is added to the spherical bodies 15a, 15b, these are retreated into the door 12 against the elastic force of the cushion material 17, and the right part of the door 12 is moved to this side. The door 12 is rotated around a shaft 0, and the spherical body 15d is moved backward and released from the lock hole 18. The door 12 thus can be opened in every direction.</p> |
