Hinge mechanism
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Solution Overview
Problem
Conventional hinges lack a tool-free locking mechanism that allows for quick rotation and disassembly, making them inefficient for various applications requiring secure and portable configurations.
Innovation Solution
A hinge mechanism with a beveled post and stop system that uses leverage and gravity to lock and unlock, allowing for tool-free adjustment between locked, unlocked, and collapsed configurations, facilitated by a removable pin for easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional hinge is used, then the hinge can be freely rotatable, but it lacks a locking mechanism to secure the hinge in specific positions
Solution Approach 1:
The hinge mechanism uses self-service principles through gravity and leverage to automatically lock and unlock without requiring external tools or complex mechanisms. The user simply lifts the hinge body to unlock and lowers it to lock, allowing the mechanism to service itself using gravitational force
Solution Approach 2:
The locking function is extracted as a separate, simple action from the rotation function. The locking mechanism is decoupled from the hinge leaves themselves and implemented through a separate body that can be lifted away, allowing the hinge to maintain simplicity while gaining locking capability
2Reliability
If a hinge with secure locking positions is designed, then the hinge can be locked in user-selected configurations, but it becomes difficult to disassemble and less portable
Solution Approach 1:
The hinge is segmented into distinct components: two hinge leaves and a separate removable body containing the locking mechanism. This segmentation allows the body to be easily removed for disassembly while maintaining secure locking when assembled, achieving both reliability and portability
Solution Approach 2:
The hinge transitions from a static, permanently fixed structure to a dynamic, reconfigurable system. The removable body can be easily detached and reattached, allowing the hinge to adapt between secured and portable states as needed
3Productivity
If a tool-free locking mechanism is implemented, then the hinge can be quickly adjusted between configurations, but the disassembly time increases
Solution Approach 1:
The locking and unlocking actions are self-service operations that require no tools. The user simply lifts the body to unlock and lowers it to lock, making configuration changes rapid and tool-free, which actually reduces overall time loss compared to tool-based mechanisms
4Ease of manufacture
If a removable pin is used for disassembly, then the hinge can be quickly taken apart, but the hinge lacks a secure locking mechanism during operation
Solution Approach 1:
The patent merges two separate functions into one integrated body: the removable pin for disassembly and the locking mechanism for secure operation. The body contains both the pin that attaches to the leaves and the internal locking mechanism, so that when assembled, the hinge provides both easy disassembly capability and secure locking during 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
Enables rapid and secure rotation of components, efficient disassembly, and versatile use across different applications, enhancing usability and portability without the need for specialized tools.
Implementation Method 1
uses leverage and gravity to lock and unlock
Implementation Method 2
uses leverage and gravity to lock and unlock
Data Source
AI summary
A hinge mechanism rotatably joins a post and a hinge in a manner that allows for rapid assembly and disassembly. A first stop, second stop, and third stop are used to create a gravity-assisted rotation system for the hinge mechanism, with the hinge rotating between a horizontal locked position, raised unlocked position, and rotated collapsed position. A pin is placed through corresponding pin receptacles of the post and the hinge in order to secure the two together. The pin is locked within the post by a locking member, which secures the pin in a manner that facilitates easy pin insertion and removal. The hinge mechanism can be integrated into a variety of apparatuses, such as a table with rotating top; the top can be rotated to the collapsed configuration in order to serve as a seat back or left in the locked configuration to be used as a table top.