Overhead Door Split Hinge for Gate Conversion
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Solution Overview
Problem
Existing overhead door systems lack a comprehensive method to decouple any row of panels to form a gate or serving window while rebalancing the weight of the system to accommodate the changed dynamics of a partially-traveling door.
Innovation Solution
A system and method that utilize a split hinge assembly with a removable central pin and a spring-loaded pin to lock panels to the rail, allowing upper panels to move independently, and extension spring assist components to counterbalance the weight of the upper panels, enabling the conversion of an overhead door into a gate or serving window.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rows of panels are permanently connected via hinges to travel together as one common linkage, then the door structure is simple and robust, but the door cannot be converted into a gate or serving window with partially separated panels
Solution Approach 1:
The hinge system is segmented into two independent parts: a first hinge portion permanently affixed to the door panel and a second hinge portion permanently affixed to the rail. These portions can be selectively connected or disconnected, allowing the door to function either as a complete overhead door or as a gate/serving window with separated panels.
Solution Approach 2:
The hinge connection transitions from a static permanent connection to a dynamic selectively connectable/disconnectable connection. The removable pin mechanism allows the system to adapt its configuration based on operational needs, enabling conversion between different door modes.
2Ease of operation
If torsion spring is sized and balanced against the weight of the entire door, then the door opens smoothly with minimal effort, but the spring cannot accommodate partial door separation and weight changes
Solution Approach 1:
The counterbalance system is segmented into multiple independent springs: a first torsion spring for balancing the entire door when closed, and additional torsion springs positioned at specific locations to balance portions of the door when separated. This allows the system to maintain smooth operation whether the door is fully closed or partially separated.
Solution Approach 2:
The counterbalance system is designed to perform multiple functions: it can balance the entire door weight when closed, balance only the lower portion when the upper portion is separated, or balance only the upper portion when the lower portion is separated. The system adapts to different operational configurations through the selective engagement of different springs.
3Reliability
If hinges are permanently affixed to panels and rails, then the connection is strong and reliable, but the panels cannot be decoupled to form a gate or serving window
Solution Approach 1:
The hinge is divided into two permanently affixed portions (one to the panel, one to the rail) that are selectively connectable through a removable pin. This maintains the reliability of permanent connections while enabling temporary decoupling when needed for gate or serving window configuration.
Solution Approach 2:
A removable pin acts as an intermediary element that temporarily connects the first and second hinge portions. When the pin is inserted, it creates a reliable temporary connection; when removed, it allows the hinge portions to separate, enabling panel decoupling while maintaining connection reliability when connected.
4Adaptability or versatility
If a removable pin hinge is used to decouple panels, then panel separation is enabled, but the weight balance of the system is disrupted and existing motor and torsion spring cannot operate the door properly
Solution Approach 1:
The counterbalance system uses multiple independent torsion springs positioned at different locations on the door. When panels are separated, the appropriate springs remain engaged to balance the remaining connected portions, maintaining proper weight balance and operation without requiring system reconfiguration.
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 the conversion of an overhead door into a gate or serving window by allowing panels to separate and rebalance the weight, facilitating entertainment and other purposes without straining users or motor units, while maintaining operational functionality.
Implementation Method 1
the lower half of the hinge having a spring-loaded pin for engaging with one of the rails to lock the lower row of panels to the rail
Implementation Method 2
extension spring assist components to counterbalance the weight of the upper panels
Implementation Method 3
torsion springs mounted above the door often are used to help counter the weight of the door
Data Source
AI summary
A system is disclosed for converting an overhead door into a gate or serving window, the system having at least two rows of panels spanning the width of the door, one panel located above and adjacent to the other panel, a pair of rails opposite one another and adjacent to the panels, the panels traveling within the rails to move from a closed position to an open position, and at least one hinge connecting the lower row of panels to the upper row of panels, the hinge having an upper half attached to the upper row of panels and a lower half attached to the lower row of panels, the upper and lower halves of the hinge connected by a removable central pin, wherein the upper row of panels moves from the closed position to the open position when the central pin is removed from the hinge.