Foldable Safety Fence for Vehicle Testing Door Clearance
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Solution Overview
Problem
Existing safety fences for vehicle testing devices interfere with vehicle doors when compact, and their design limits the flexibility of auxiliary device layouts, preventing full door opening and causing interference with vehicle testing operations.
Innovation Solution
A safety fence system with foldable and angled parts that can swing outwardly and inwardly, supported by adjustable members, allowing parallel arrangement with vehicle wheels and preventing interference with vehicle doors, while maintaining flexibility for auxiliary device operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large fixed safety fence is used, then safety protection is improved, but interference with vehicle door operation occurs
Solution Approach 1:
The safety fence is designed with foldable parts that can change position dynamically. The first foldable fence part can swing between a first position (parallel to the door opening direction) and a second position (parallel to the vehicle body), allowing the fence to adapt its configuration based on whether the door needs to open, thus preventing interference while maintaining safety protection
2Ease of operation
If the safety fence structure is made complex to allow door operation, then door accessibility is improved, but flexibility of auxiliary device layout is reduced
Solution Approach 1:
The safety fence is divided into multiple independent parts: a fixed fence part and a first foldable fence part that can swing independently. This segmentation allows each part to perform its specific function without restricting the overall system's adaptability, enabling both door accessibility and flexible auxiliary device layout
3Ease of operation
If the safety fence is positioned to prevent door interference, then door operation is improved, but safety coverage may be reduced
Solution Approach 1:
The first foldable fence part swings to a first position parallel to the door opening direction when the door needs to open, eliminating interference. When the door operation is complete, it can be positioned at a second position parallel to the vehicle body to maximize safety coverage, thus dynamically optimizing both door operation and safety coverage
Data Source
AI summary
A safety fence for a vehicle testing device includes a fixed fence part structured to be arranged substantially in parallel with a wheel of a test vehicle, wherein the test vehicle is placed on a roller exposed through a roller opening of a pit cover. A first foldable fence part is attached to an end portion of the fixed fence part, and structured to swing outwardly of the fixed fence part. A second foldable fence part is attached to an end portion of the first foldable fence part, and structured to swing outwardly of the first foldable fence part. A third foldable fence part attached to a lower end portion of the fixed fence part, and structured to be arranged in parallel with the fixed fence part.