| 摘要 |
A coupling which is operable by being pressed inwards and outwards, primarily for use in connection with the closing and opening of a shutter plate in a ventilation slot-valve, is configured with a coupling element (4) which can be pressed against spring pressure (6) into a surrounding guiding part (2), and which configured with a guide boss (12) on the guiding part can bring about turning movements of the coupling element such that this can be provisionally secured in a pressed-in position, from which it can be released by a further, brief pressing-in. With the invention, there is provided a robust snap-lock effect in that the guide boss (12) is configured as an injection moulded item on an outwardly flexible wall section (3) of the guiding part (2), and cooperates with track parts (28, 34, 38) with different directions, bottom depths and inclinations. |
