| 摘要 |
<p>The foot has a supporting bracket (2) for retaining a load of an extendable element (1), where the foot is tiltable from a non-use position to an operation position. The supporting bracket and an actuation bracket (4) are tiltably hinged to the extendable element. The supporting bracket is connected with the actuation bracket by a twisting and shift permitting joint (12). The movement of joint is blocked, in the operation position of the foot. The joint is movable between the supporting bracket and the actuation bracket by a slotted hole (13) that is formed in the supporting bracket.</p> |
