Retractable Obstacle for Loading Bay Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current loading bay designs pose significant safety risks to personnel and drivers due to accidents involving pedestrians and vehicles during the loading and unloading process, with existing solutions being costly to improve safety effectively.
Innovation Solution
A loading bay safety device equipped with an articulated platform, sensors for monitoring the crush and safety zones, a retractable obstacle, and a signaling system to prevent accidents by detecting obstacles and controlling the lorry's approach, including a door locking mechanism and a deployable lip for safe operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional loading bay design is used, then construction cost is low and structure is simple, but safety risk to personnel is high due to crush zone hazards
Solution Approach 1:
A retractable obstacle is introduced as an intermediary element between the lorry and the crush zone. This obstacle can be positioned to block the lorry's path when personnel are present in the crush zone, and retracted when the zone is clear, thereby mediating the dangerous interaction without permanently altering the bay structure
Solution Approach 2:
The obstacle is designed to be dynamic rather than static - it can move between a retracted position (when no personnel are present) and a deployed position (when personnel are detected in the crush zone). This dynamic behavior allows the system to adapt to changing conditions while maintaining safety
2Reliability
If sensors and retractable obstacle are added to prevent lorry approach, then safety is improved, but device complexity and cost increase
Solution Approach 1:
The sensor system serves multiple functions: it detects the presence of personnel in the crush zone, determines the lorry's approach, and triggers both the retractable obstacle and warning signals. This multi-functionality reduces the need for separate systems and justifies the added complexity through consolidated design
Solution Approach 2:
The system incorporates continuous feedback loops where sensors monitor the crush zone and lorry position in real-time, and the control system adjusts the obstacle position and warning signals accordingly. This feedback mechanism ensures safety while optimizing system response
3Reliability
If retractable obstacle is deployed to block lorry, then personnel safety is protected, but lorry loading/unloading efficiency decreases
Solution Approach 1:
The retractable obstacle transitions between deployed and retracted states based on real-time detection of personnel presence. When the crush zone is clear, the obstacle retracts to maintain loading/unloading efficiency; when personnel are detected, it deploys to ensure safety, thus dynamically balancing productivity and safety requirements
4Reliability
If warning signals are activated to alert personnel, then safety awareness is improved, but operational disruption increases
Solution Approach 1:
The warning signal system provides continuous feedback to personnel about the lorry's approach and the status of the retractable obstacle. This allows workers to understand the situation contextually and take appropriate action without unnecessary operational disruption, as warnings are triggered only when actual danger is present
Data Source
AI summary
The invention relates to a bay loading safety device including: —an articulated platform (14), whose level can be altered to adapt to the differences in height between a lorry trailer (10) and a loading bay (12), —a door (15) for shutting off access from (13) a building (11) opening onto the bay (12), —a set of buffers (16a, 16b) fixed on either side of the platform (14) to provide protection for the bay (12) when the lorry trailer (10) comes alongside the said bay (12), characterized in that it comprises, —a sensor (31) able to monitor a zone (34), called the crush zone, —a sensor (36) able to determine the distance of the lorry (10) from the bay (12), —an obstacle (35) that can be retracted during the travel of a lorry (10), so as to prevent it from coming alongside the bay (12) depending on whether the whole or part of a fixed or mobile object (17) situated in that zone (34) is present and on the distance of the lorry (10) from the bay (12).