| 摘要 |
PROBLEM TO BE SOLVED: To provide a door flap assembly, which is installed simply and does not make a hindrance to the opening and closing of a door, by which the penetration of dust is prevented by surely obviating the intrusion of a wind and which has excellent appearance. SOLUTION: In the door flap assembly 20, a frame 30 mounted on the lower end face of a door 10 comprises a frame having a channel section 32 along one side face of the frame 30 and a flap rotatably fitted to the frame 30, and the vertical rotation of the above-mentioned flap is controlled by driving a flat-operating piece by a trigger 40 slid in the channel section 32 of the frame 30. The trigger 40 is urged to the outside by a spring at all times in the channel 32 of the frame, and a constraint by the trigger 40 of the flap-operating piece is released by abutting against a column or a frame body 12 of the driving end of the trigger 40 at the time of the closing of the door 10.
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