PURPOSE: To prevent the lower edge of a door body from being swung outward from a car shed when the door body is spring-up-turned.
CONSTITUTION: An arm 1 is pivotally supported on the upper part of a stay 2 in its turnable manner in the inward/outward direction of a car shed around a supporting point P. The upper edge part of a door body 3 is pivotally- supported and connected to the top edge of the arm in relatively turnable manner by a pin 4. The first link 5 is pivotally-supported and connected to the lower part of a stay 2 in erection turnable manner by pin 6 in the direction nearly crossing at right angles to the inward/outward direction of the car shed. The second link 7 is pivotally-supported and connected to the top edge of the first link 5 in turnable manner by a pin 8 in the direction nearly crossing at right angles to the inward/outward direction of the car shed. The top edge of the second link 7 and the lower edge of the door body 3 are pivotally- supported and connected to each other in turnable manner by a ball joint 9 for permitting a three-dimensional movement.
NISHIKAWA MAKOTO
OKUMURA KATSUYUKI
