Vehicle Door Window Breaker With Handle-Activated Shear Pin
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Solution Overview
Problem
Existing vehicle windows are durable but challenging to break during emergencies, requiring external tools or significant physical strength, and current solutions are not integrated or reliable for rapid escape.
Innovation Solution
An integrated vehicle door and window glass breaking system with a pin affixed to the window and a driving cable, activated manually via a concealed button or automatically by sensors, to generate shearing force for breaking the glass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional vehicle windows are designed to be robust and durable for safety and security purposes, then the window strength and security are improved, but the difficulty to break the window during emergencies increases
Solution Approach 1:
The window glass is segmented by introducing a pin that creates a stress concentration point, dividing the monolithic glass structure into regions that can fracture more easily when force is applied to the pin, thus maintaining overall strength while enabling emergency breaking
Solution Approach 2:
A pin is introduced as an intermediary element between the breaking force and the window glass. The pin acts as a stress concentrator that transforms applied force into concentrated stress at the glass edge, enabling the glass to break with less force while the main glass structure remains strong for normal use
2Ease of operation
If portable glass-breaking tools are used, then the ability to break windows is improved, but the reliability during emergencies decreases due to reliance on external devices
Solution Approach 1:
The glass-breaking function is merged with the vehicle's existing door handle mechanism. The door handle is integrated with a cable system that connects to a pin positioned at the window edge, combining the breaking function with a component that is always present and accessible during emergencies
Solution Approach 2:
The vehicle's own door handle mechanism serves the dual purpose of door operation and glass breaking. The system uses the vehicle's existing mechanical components (door handle, cable) to provide the breaking function, eliminating the need for separate external tools and ensuring reliability through self-sufficiency
3Reliability
If a glass-breaking mechanism is integrated into the vehicle door handle, then the reliability and ease of use during emergencies are improved, but the device complexity increases
Solution Approach 1:
The door handle mechanism is designed with multi-functionality, serving both as a normal door operation component and as a glass-breaking mechanism. The cable and pin system is integrated into the existing door handle structure, allowing the same components to perform multiple functions without adding separate dedicated systems
Solution Approach 2:
The pin is designed as a simple, inexpensive component that is intentionally positioned to be broken during emergency use. The pin serves as a disposable element that sacrifices itself to initiate glass fracture, while the main door handle and cable mechanism remain intact for continued use
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
Facilitates quick and efficient escape during emergencies without external tools, ensuring rapid egress in situations like water submersion or collision, enhancing occupant safety.
Implementation Method 1
the driving cable rotates the pin (i.e., cylindrical pin), generating shearing force to shatter the window glass (i.e., vehicle door window)
Data Source
AI summary
The present invention is a vehicle window glass (i.e., vehicle door window) breaking system. The system integrates a glass-breaking mechanism with a door handle that offers manual or automatic activation. A concealed button near the handle facilitates manual activation and automatic activation employs sensors autonomously triggered or actuated by water buoyancy or collision impact. The system features a pin (i.e., cylindrical pin) affixed to the edge of the window glass (i.e., vehicle door window), with a driving cable passing through an aperture in the pin. A cable jacket encases the cable, guiding its movement and transmitting pulling force efficiently. When activated, the pin (i.e., cylindrical pin) rotates, generating a shearing force that breaks the glass. The glass installation base anchors the cable jacket, stabilizing the system and distributing stresses.