| 摘要 |
PROBLEM TO BE SOLVED: To make the angle of opening large for a door leaf, and to make a vertical frame available for installation with the door leaf being attached by a method wherein a pin arranged on a stile at one side of the door leaf is held at the upper frame of a door frame and a lower pin arranged at the lower frame is held at the lower part of the stile at one side and the door leaf is made capable of opening and shutting therewith. SOLUTION: An upper pin 51 and a lower pin 27 that connect a door leaf 9 to an upper frame and a lower frame 2 so that the door leaf can swing freely are positioned, being closer a little to the opening side of the door leaf than the center in the direction of the depth of the door leaf, and thereby the angleθof opening is made large for the door leaf 9. A vertical frame 3 is arranged at an opening of a door with the door leaf 9 being installed on a door frame 4 with a stile 7 at one side installed, being separated a little from the closing side of the vertical frame 3 at one side with the door leaf 9 put in the state of being opened. The door leaf 9 is made installable either righthandedly or lefthandedly with the pins 51 and 27 being made movable toward the positions of door opening and door closing. Furthermore, adjustment of fitting for the door leaf 9 can be made by making the door leaf 9 separate from a part where the upper pin support member is installed on the upper frame when the door leaf 9 is opened and by making the upper pin support member move with the door leaf 9 being installed on the door frame 4.
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