| 摘要 |
In a push-button switch group consisting of at least two push-button switches having a housing 10 and in each case one push button 15, 15' on which a spring elements acts and which is held in a switched-on position with the aid of a control cam 24, 25 and a control lock 21 running in the control cam, and, when the other push button in each case is switched on, can be released from its switched-on position, it is intended to prevent it being possible to push the second push button down when the first is blocked in its switched-on position by means of an external force. As can be seen from Fig. 1, this is achieved in that the means 40 which are used for alternately releasing the push buttons 15 and 15', can be moved out during the switching-on movement of a push button over the position which they occupy in the release position of the one control part 21, and in that this movement can be blocked by a stop which can move vertically with the other push button. The stop is preferably formed by the control part 21, which can be displaced vertically. <IMAGE>
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