| 摘要 |
<p>A directional control valve (4) has snap-locking means (2) for retaining the slide (6) of the directional control valve in at least one switching position. The snap-locking means have a snap-locking part (8) with a snap-locking piston that allows an engagement part (12) to engage and lock the slide of the directional control valve. Kick-out means (16) disengage the engagement part when a predetermined control pressure is exceeded. The kick-out means triggering force may be adjusted by means of setting means (22) that act on a kick-out spring (20). Switching means (24) that allow the kick-out function to be switched off independently of the setting of the setting means are associated to the directional control valve in order to prevent disengagement independently of the initial stress of the kick-out spring.</p> |
