| 摘要 |
A scissors-type retractable bridge (1) capable of being extended/retracted in an extension direction, wherein a plurality of frame elements (3), including two frame members (2) joined by a pin at a center portion, are joined at distal end parts of the frame members (2) to form a scissors frame (4). During extension of the scissors frame (4), the near-side frame members (2) of the frame elements (3) are linked to each other in a straight line and the far-side frame members (2) are linked to each other in a straight line, whereby an upper surface of the frame members (2) forms a continuous flat surface. |
