| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem, in which installation is troublesome for automatically closing a door body mounted on a storage shed and the door body is short of durability in the door body. SOLUTION: A structure has a locking mechanism A, in which a locking lever 4 having a flange 4a capable of being projected and retracted to and from a box body 5 secured to the top board 1a of the storage shed 1 and upper and lower two chambers (a), (b) by a parting board 7, to which a window hole is bored, are set up and spheres 6, 9 are housed to each chamber in a rollable manner, the sphere 6 in the lower chamber (b) is engaged and disengaged with and from the flange 4a for the locking lever 4, and the flange 4a is worked to the sphere 9 in the upper chamber (a) through a blade piece 10 fitted to the flange 4a and peeped through the window hole 8. In the structure, a locking releasing mechanism, in which frame body 11 being installed to the door body 2 and having an inclined plane 11a at a front end and an engaging section 11b on the inside is mounted in response to the locking mechanism A, and a pushing-up board 12 pushing up the locking lever 4 by burying a magnet body B attracting the front end section of the locking lever 4 and a backing board 14 in the horizontal direction receiving the locking lever 4 are secured to the intermediate section of the frame body 11, is set up.
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