| 摘要 |
For unlocking an actuating member and an associated securing part, a foot of this type has a swivel arm connected to the actuating member. Said swivel arm is connected at its other end to a tread piece such that, when the tread piece is pressed down, the swivel arm is swivelled in such a way that the actuating member moves into its position of release, in which the foot can be adjusted in height. The tread piece has an arresting member which has a catch opening, to which an edge portion of a through-opening of a cross piece receiving the swivel arm is assigned as counter catch member. The swivel arm can be locked in its swivelled position relative to the cross piece when the tread piece is swivelled slightly, the catch member moving with the edge of the opening into the catch position. As a result, the foot can easily and quickly be adjusted in height without the tread piece having to be pressed down in this case. |
