Rotatable Bumper Door Frame Protection Apparatus
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Solution Overview
Problem
Warehouses and similar facilities face frequent damage to door frames and shutter-type overhead roll-up doors due to collisions with stock handling equipment like fork trucks, which can damage the door mechanisms and frames.
Innovation Solution
A door frame protection apparatus comprising two upright bars with rotatable cylindrical bumpers and a crossbar that absorbs impacts, preventing contact between stock handling equipment and door frames, with features like high visibility coloring and removable components for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shutter-type overhead roll-up door is installed to control access, then security and stock protection are improved, but the door and its mechanism become vulnerable to damage from stock handling equipment
Solution Approach 1:
A protective barrier structure consisting of upright bars with rotatable cylindrical bumpers and an overhead crossbar is installed between the stock handling equipment and the door mechanism. This intermediary barrier absorbs impacts and deflects them away from the door, shutter tracks, and motorized rolling mechanism, preventing direct contact and damage while allowing normal door operation.
2Object-affected harmful factors
If a protective barrier is installed around the doorway, then protection against stock handling equipment is improved, but the device complexity increases
Solution Approach 1:
The protective barrier is divided into separate modular components: two upright bars with rotatable cylindrical bumpers and an overhead crossbar. This segmentation allows for easier installation, maintenance, and replacement of individual parts without affecting the entire structure, reducing the practical complexity despite adding protective functionality.
Solution Approach 2:
The cylindrical bumpers on the upright bars are designed to rotate freely, allowing them to dynamically adjust their orientation in response to impacts from stock handling equipment. This dynamic capability enables the barrier to absorb and deflect forces more effectively while maintaining structural integrity, managing the complexity through motion rather than rigid constraints.
3Stability of the object's composition
If the upright bars are anchored to the surface, then stability is improved, but installation complexity increases
Solution Approach 1:
The upright bars are pre-equipped with anchor points that can be quickly engaged with the surface material. This preliminary preparation of the anchoring mechanism allows for rapid installation without requiring complex construction procedures, achieving both stability and ease of installation by having the anchoring capability built into the bar structure beforehand.
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
The apparatus effectively prevents damage to door frames and mechanisms by absorbing impacts and enforcing height restrictions, reducing maintenance needs and enhancing visibility for operators.
Implementation Method 1
The rotatable cylindrical bumper is configured to absorb and deflect inadvertent impacts by stock handling equipment
Implementation Method 2
The rotatable cylindrical bumper... configured to absorb and deflect inadvertent impacts
Implementation Method 3
The overhead bar is configured enforce height restrictions for stock handling equipment masts by absorbing any impacts by the masts
Data Source
AI summary
A door frame protection apparatus includes a first upright bar having a first end and a second end, the first end being anchored to a surface at a first anchor point, a second upright bar having a third end and a fourth end, the third end being anchored to the surface at a second anchor point, an overhead crossbar coupled to the second end of the first upright bar and to the fourth end of the second upright bar, a first impact absorption member resting on the first anchor point and having the first upright bar extending therethrough, the first impact absorption member being rotatable about the first upright bar, and a second impact absorption member resting on the second anchor point and having the second upright bar extending therethrough, the second impact absorption member being rotatable about the second upright bar.