| 摘要 |
The invention relates to a knob connection for a multipolar switching device that is composed of single-pole switching devices, the single-polar switching devices of which have thermoplastic operating knobs, arranged juxtaposed and pivoting around a common axis, and connected by means of a rigid grip strip covering the individual operating knobs. The operating knobs (1) have, on the narrow side facing upwards, a slit-like recess (1.3) closed on both front sides (1.4) and running in axial direction. The recess has undercuts (1.6), facing both side faces, in a plane perpendicular to the axis direction (2.1'). The grip strip (3), which is also made of thermoplast, has peg-shaped protruding elements (3.1), across the width of the single-pole switching devices and corresponding to their number, which, with serrated projections (3.2) adapted to the undercuts (1.6), can be later, elastically, as well as captively locked twist-proof into the recesses (1.3), while lengthwise along the grip strip (3), between the protruding elements (3.1) and the recesses (1.3), there is sufficient play to compensate for tolerances and material contraction. |
