Fuse Load Break Switch Cover Structure for Shock-Safe Partial Opening

The patent applies preliminary anti-action by designing projecting sections on the base element that protrude into the opening area before the cover element is fully closed. These projections create an overlapping region that blocks access to live parts in advance, preventing the harmful effect of electric shock before it can occur during the closing operation.

The patent introduces a new spatial dimension by adding projecting sections that extend in the opening direction from the base element. This creates an overlapping region between the cover element and base element, effectively adding a protective layer in the Z-dimension (opening direction) that limits the accessible opening area and prevents contact with live parts.

The patent applies segmentation by dividing the base element into functional sections: straight sections for forming the opening edge and projecting sections for safety protection. The projecting sections are further segmented into multiple individual projections, allowing the safety function to be distributed across multiple simple geometric elements rather than requiring a complex mechanical locking system.

Instead of making the cover element complex with moving locks or seals to prevent partial opening, the patent inverts the approach by adding simple static projecting sections to the base element. This reverses the traditional design paradigm where the movable part (cover) carries the complexity, and instead places simple geometric features on the stationary part (base).