| 摘要 |
PROBLEM TO BE SOLVED: To lighten a bumper itself and absorb strong impacting force too by arranging the bumper of hard resin material for absorbing an impact in the lower part of a swing door, and providing a slide suppoting part, for slidably supporting the bumper in a direction for escaping stress caused by deformation at the time of collision, on the slide door. SOLUTION: Bumpers 4 are fitted respectively to the lower parts of the front and back surfaces of a swing door 1, opening/closing freely supported by an upper and lower pair of hinge members 3, on a pillar 2 erected on a doorway such as e.g. a warehouse. The bumper 4 is molded by pressing, for instance the plate of rigid resin material, to a die by a vacuum forming construction method and so on, to form a protruded part 4a such as bent or curvature parts on a portion biased to a door tip, and is oblong as the whole to form one row of four oblong long holes 5 in a vertical direction respectively on both the right and left end parts in the lateral direction. Rollers equipped with through holes at the center part are provided in the respective holes 5, and fixing bolts 10 together with the rollers and holes 5 constitutes a slide supporting part P.
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