Vertical Pivoting Gate Operator with Integrated Counterspring
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Solution Overview
Problem
Existing vertical pivoting gate operators are heavy, bulky, inefficient in tensioning, prone to clutch slippage, and have a large footprint, leading to issues with gate control and safety, especially when encountering vehicles during closure.
Innovation Solution
A lighter, compact vertical pivoting gate operator with a unibody housing, counterspring system, and drive train decoupling mechanism, featuring a motor and drive system integrated within the housing, along with a simpler tensioning system and quick response direct drive to minimize gate collision risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If long extension springs are used to provide counterbalance force, then sufficient torque (2000-3000 ft-lbs) can be achieved, but the system becomes dangerous when springs fail and separates, creating uncontrolled high-velocity flying parts
Solution Approach 1:
The patent extracts the dangerous long extension springs from the system and replaces them with a compact coiled spring mechanism housed within the operator housing. This eliminates the hazard of spring separation while maintaining the necessary counterbalance torque through a contained, controlled spring design.
Solution Approach 2:
The patent nests the counterbalance spring mechanism within the operator housing, creating a compact integrated design. The spring is contained within the housing structure, allowing the force-generating component to be nested inside the main body rather than extending externally, thus eliminating safety hazards while preserving functional performance.
2Reliability
If clutch slippage occurs during gate stopping, then the gate can be stopped in case of vehicle detection, but the gate will still travel while stopping causing impact to vehicles
Solution Approach 1:
The patent replaces the clutch-based mechanical stopping system with a direct-drive motor system controlled by electronic sensors. This substitution eliminates clutch slippage by using direct motor control to stop the gate precisely when a vehicle is detected, thereby preventing gate impact while maintaining reliable vehicle detection response.
3Force
If heavy counterbalance springs are used, then sufficient torque can be generated, but the operator becomes very heavy causing shipping and installation drawbacks
Solution Approach 1:
The patent nests the counterbalance spring mechanism within the operator housing, creating a compact integrated design that eliminates the need for heavy external springs. The spring force is generated within the housing structure itself, allowing sufficient torque to be produced without adding external weight, thus resolving the contradiction between force generation and operator weight.
Solution Approach 2:
The patent changes the physical parameters of the spring system by using a compact coiled spring design with higher spring constant, allowing the same counterbalance torque to be achieved with a much smaller, lighter spring mechanism compared to traditional long extension springs.
4Ease of operation
If traditional spring tensioning methods are used, then counterbalance force can be adjusted, but the methods are inefficient and complex
Solution Approach 1:
The patent nests the spring tensioning mechanism within the operator housing, integrating the tensioning adjustment features into the main body. This integration allows for efficient tensioning adjustment through built-in mechanisms such as adjustment slots or tensioning screws that are accessible and easy to operate, eliminating the need for complex external tensioning procedures.
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
The solution provides a safer, faster, and more reliable gate operation by reducing the likelihood of collisions with vehicles, improving installation and maintenance, and offering a smaller footprint for easier deployment.
Implementation Method 1
a first compression spring and a second compression spring positioned adjacent to one another in a stacked arrangement... configured to provide a counterbalance force
Data Source
AI summary
A vertical pivoting gate operator for positioning a gate between an open position and a closed position is provided. The gate operator includes a motor drive assembly including a motor and a linkage assembly mechanically connecting a motor output to the gate such that in response to actuation of the motor, the linkage assembly transmits an opening force to positioning the gate toward the open position, and a closing force, for positioning the gate toward the closed position. A counterbalance assembly including a biasing member is operable to release stored energy against an input link to rotate a gate arm shaft so as to urge the gate toward the open position and to increase stored energy in response to rotation of the gate traveling toward the closed position to act against the gate as it approaches the closed position.