To provide a door device provided in a passage surrounded by a fence to put playthings for infant and prevent infants to come in and out and capable of securely locking the door device while a door plate is closed without causing play by a simple structure, making it difficult for infants to operate the door device, and allowing a protector to open, close, and operate the door device easily.
A one side fringe part of the door plate 3 is connected with a fringe part of a first fixing part 1 by a hinge part 4 so as to turn horizontally, and a door stop plate 5 is detachably attached to one side of the front and the back in a fringe part of a second fixing part 2 so as to protrude into an opening part from an end fringe of the second fixing part. A locking device 6 is provided in an upper end part on a play end side of the door plate so as to turn in the vertical direction, and an upper end part of the second fixing part is received into an engaging groove part 7 of the locking device 6 when the locking device is put in a horizontal locked condition to make the door plate irrotational by fitting recessed and projecting parts of an upper end part of the door stop plate and the locking device mutually.
COPYRIGHT: (C)2008,JPO&INPIT
Norio Morioka
Hisayoshi Sekiguchi
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