| 摘要 |
The present invention relates to a valve for a door catch, in particular for a motor vehicle. The claimed valve for a door catch has a device for opening the valve, which device is provided in such a manner that, for an initial opening of the valve, first of all a relatively high opening pressure has to be exerted on the valve. Subsequently, for complete opening of the valve and/or for keeping the valve in the open position thereof, an opening pressure which is smaller in comparison has to be exerted on the valve. Since, in the case of such a valve, a relatively high opening pressure has to be used initially for opening the valve, a relatively high amount of effort is first of all required in order to move a door which has been stopped by a door catch equipped with such a valve. In this respect, because of the valve, the door catch consequently reliably carries out the function thereof, namely keeping a door in the non-operated state. If the door is moved and therefore an opening pressure is applied to the valve, the valve initially opens under a sufficiently high force. If the valve has been initially opened, the pressure which has to be applied subsequently for complete opening of the valve and/or which is required for keeping the valve in the open position thereof decreases. The door can then be moved further with reduced effort because of the decreasing pressure. |
