Sensing Edge Gap Sealing with End Flap Groove
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Solution Overview
Problem
Sensing edges for automatic doors often leave gaps that allow light, rodents, and debris to enter, as they do not effectively seal the space between the edge and adjacent structures, potentially causing damage or interference.
Innovation Solution
A sensing edge design featuring an elongated sheath with end plugs and flaps that securely engage to block gaps, using a combination of vertical and horizontal grooves and flange structures to secure the flaps in place, preventing entry of objects and animals while allowing for signal transmission to control mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sensing edge is used for automatic doors, then obstruction detection capability is improved, but gaps remain that allow light, rodents, and debris to enter
Solution Approach 1:
The end flap is nested within the cavity formed by the sensing edge and adjacent structure, with the flange structure positioned in the vertical groove to secure it in place, creating a sealed configuration that blocks gaps while maintaining the sensing function
2Object-affected harmful factors
If the sensing edge is designed to seal the gap, then prevention of harmful factors is improved, but device complexity increases due to additional components
Solution Approach 1:
The sealing function is segmented into distinct components: the end plug封闭 the cavity, the end flap provides the blocking surface, and the flange structure with vertical groove provides the securing mechanism, allowing each part to perform its specific function efficiently
3Object-affected harmful factors
If end plugs and flaps are added to seal gaps, then gap blocking capability is improved, but manufacturing complexity increases
Solution Approach 1:
The flange structure is designed to be movable during installation, allowing the end flap to be positioned and secured in the vertical groove, providing ease of assembly while ensuring proper installation for effective gap blocking
Data Source
AI summary
A sensing edge for providing a signal to a controller indicating that a forward edge of a door is obstructed during operation. The sensing edge includes an elongate sheath, a first end plug and a first end flap. The elongate sheath has a first end and a second end. A first cavity is located at the first end. The elongate sheath is mounted to the forward edge. The first end plug includes an inner end, an outer end, first engaging structures extending from the inner end and a first vertical groove in the outer end. The engaging structures are positioned within the first cavity in an assembled configuration. The first end flap includes a relatively flat first body and a first flange structure. The first flange structure is positioned in the first vertical groove in the assembled configuration to secure the first end flap to the first end plug.