| 摘要 |
The step comprises an attachment element (9), a first side element (2) and a second side element (7) which are pivotally attached to it, and suspended from the attachment element (9), via. a first upper pivot axis (10), a second upper pivot axis (11), which are arranged parallel to each other. There is a step element (1) attached to the lower part of the respective side elements (2,7) via a first lower pivot axis (3) respectively and second lower pivot axis (8) which are arranged parallel to each other. It comprises a spring element (13) and at least one spring attachment (14,15) connected to it, which is pivotally arranged. The spring element when pivoting in a first direction, causes the spring attachment to exert a force against a side element (2,7). |
