STORAGE ASSEMBLIES

摘要

Sensor means which is fitted to a mobile member so as to stop the latter on engagement with an object in its path comprising a trip bar, a plurality of links which are arranged at spaced points along the mobile member and are each pivotally connected to said mobile member and trip bar at respective opposite ends so that they form a folding parallelogram with the mobile member and trip bar, and switch means which is arranged in relation to said trip bar so as to be operated by movement of the latter towards said mobile member. Preferably, at least one of the links is pivotally connected to the mobile member by connection means which is adjustable in position along a respective portion of the length of the mobile member and which preferably carries a stop in a predetermined angular position relative to the pivot between the link and connection means so that the links lie parallel to one another when they engage their respective stops. Preferably, the sensor means is mounted with the trip bar extending horizontally along the base of a mobile storage unit.