Explosive Hinge Bolt for Emergency Vehicle Door Separation
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Solution Overview
Problem
In vehicles equipped with vertically opening or closing doors, such as butterfly, scissor, or gull-wing doors, occupants face difficulties escaping or being rescued during emergencies like vehicle overturns, as these doors cannot be opened due to the roof contacting the ground, and existing solutions like latch devices are complex and hard to implement.
Innovation Solution
An apparatus and method that involves an explosive hinge bolt with a breaking member and a hinge bolt removal device, allowing the door to be separated from the vehicle body by breaking the hinge bolt and removing it from the hinge, enabling the door to be opened even when the vehicle is overturned.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a latch device is used to separate the hinge, then the door can be opened in emergency, but the device complexity increases and installation space requirements increase
Solution Approach 1:
The invention extracts the emergency separation function from a complex latch mechanism and integrates it directly into the hinge bolt itself. The explosive charge is embedded within the hinge bolt structure, allowing the bolt to be broken and removed directly, eliminating the need for separate latch devices and reducing overall system complexity while maintaining emergency door opening capability
Solution Approach 2:
The invention merges the hinge bolt and explosive charge into a single integrated component. The breaking member containing the explosive is combined with the hinge bolt structure, so that one component serves both as the fastening element and the emergency release mechanism, thereby reducing device complexity and installation space
2Reliability
If a latch device is used to separate the hinge, then the door can be opened in emergency, but the installation space requirements increase
Solution Approach 1:
The invention extracts the emergency separation function from a separate latch mechanism and integrates it directly into the hinge bolt itself. The explosive charge is embedded within the hinge bolt structure, allowing the bolt to be broken and removed directly, eliminating the need for separate latch devices and reducing overall system complexity while maintaining emergency door opening capability
Solution Approach 2:
The invention merges the hinge bolt and explosive charge into a single integrated component. The breaking member containing the explosive is combined with the hinge bolt structure, so that one component serves both as the fastening element and the emergency release mechanism, thereby reducing device complexity and installation space
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
Enables occupants to escape or be rescued by allowing the door to be separated from the vehicle body during emergencies, as the explosive hinge bolt mechanism allows for reliable separation without the need for complex installations.
Implementation Method 1
a breaking member provided in the hinge bolt to break the hinge bolt when a hinge breaking signal is input to the breaking member from the outside
Data Source
AI summary
An apparatus for separating a vehicle door in an emergency, the apparatus being disposed to a hinge, which includes a hinge base disposed to a vehicle body, a hinge bracket disposed to a side of a door and overlapping with the hinge base, and a hinge bolt disposed through the hinge base and the hinge bracket, and which allows the door to be rotatable relative to the vehicle body, so that the hinge bracket is separated from the hinge base, may include a breaking member provided in the hinge bolt to break the hinge bolt when a hinge breaking signal is input to the breaking member from the outside, and a hinge bolt removal device configured to remove the hinge bolt from the hinge base and the hinge bracket when the hinge bolt is broken.