Vertically Opening Door Debris Collection Mechanism
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Solution Overview
Problem
Existing vertically opening doors face issues with debris, such as solid or liquid, falling from the lower portion when closing, potentially contaminating objects or people, as previous solutions like protective bodies fail to prevent debris from falling during opening and closing cycles.
Innovation Solution
A door assembly with a protective body that includes a debris collecting surface, which can be cantingly configured to direct debris towards one side using gravity, and an actuator like a hydraulic cylinder or mechanical arm to move the protective body between collection and storage positions, ensuring debris is contained during door operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective body is used to collect debris, then debris collection is improved, but debris may drop during door closing
Solution Approach 1:
The protective body is designed to rotate dynamically between a horizontal position (when door is open) for debris collection and a vertical position (when door closes) to prevent debris dropping. This dynamic reconfiguration allows the same structure to serve dual purposes at different operational phases.
Solution Approach 2:
The system performs preliminary action by rotating the protective body to vertical position before the door completes its closing motion, preemptively preventing debris from falling onto objects or people below during the critical closing phase.
2Area of stationary object
If the protective body spans the door width, then debris collection coverage is improved, but it obstructs the door path during closing
Solution Approach 1:
The protective body transitions from a horizontal spanning position (providing full width coverage) to a vertical retracted position (clearing the door path) through rotational movement, allowing both full coverage during open phase and unobstructed closing operation.
Solution Approach 2:
The protective body moves from occupying the horizontal plane (spanning door width) to occupying the vertical plane (standing perpendicular to floor), effectively clearing the horizontal door path while maintaining debris containment capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively prevents debris from falling onto objects or people by ensuring the protective body collects and directs debris away from the path of the door, maintaining cleanliness and safety throughout the opening and closing cycles.
Implementation Method 1
a debris collecting surface... which can be cantingly configured to direct debris towards one side using gravity
Data Source
Figure 1
Figure 2
Figure 3a~3c
AI summary
A door assembly including a vertically moving door to permit and prohibit access through an opening which has a top, a bottom defined by a floor, and at least two sides, the door assembly. The assembly having a door body having upper and lower portions, and being mounted proximate the opening such that the lower end portion being proximate the floor when the door is in the closed position. A protective body is configured in connection with the door so as to be moveable between a first position under at least a portion of the door body lower portion when the door is in at least a partially open position and a second storage position. The protective body having at least one debris collecting surface, and opposing ends, the protective body being configured such that debris collected on the debris collecting surface will be urged toward one of the opposed ends.