Self-Actuating Gate Holder with Timing Release Mechanism
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Solution Overview
Problem
Self-closing gates often fail to return to their closed position if users do not manually unlatch or untether them after use, leading to potential escape of livestock and damage.
Innovation Solution
A gate holder with a mounting plate, pivotably connected closing arm, and return mechanism, including a spring-type shock absorber, which temporarily holds the gate open and allows it to close automatically after a set time period, eliminating the need for users to manually unlatch or untether the gate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a self-closing gate is used without a lock, then public access is allowed, but the gate cannot be kept open reliably and livestock may escape
Solution Approach 1:
The gate holder system is self-activating through a weight-sensitive mechanism. When the gate closes, its weight automatically triggers the holder to engage, holding the gate open without requiring manual intervention. This self-service mechanism resolves the contradiction by making the system both accessible (no lock required) and reliable (automatic engagement ensures gate remains open)
Solution Approach 2:
The gate holder acts as an intermediary device between the gate and the ground post. It transfers and holds the gate in the open position through a mechanical linkage system involving the arm, pivot point, and weight-sensitive trigger mechanism, providing reliable gate opening maintenance without blocking public access
2Ease of operation
If a latch is used to keep the gate open, then vehicles can pass through, but users must manually unlatch the gate after use
Solution Approach 1:
The gate holder automatically releases the gate after a predetermined time period without requiring user intervention. The timing mechanism counts down from when the gate is held open and automatically disengages, allowing the gate to close by itself. This eliminates the time users would otherwise spend manually unlatching and closing the gate
3Force
If a heavy weight is used to ensure gate closes, then gate closing force is sufficient, but the gate holder mechanism becomes complex
Solution Approach 1:
The system uses a weight positioned to counterbalance the gate's weight at specific points in the mechanism. This counterweight arrangement provides sufficient force to ensure reliable gate closing while maintaining a manageable overall system weight. The weight works in conjunction with the pivot points and arm geometry to amplify force efficiently
Solution Approach 2:
The gate holder is divided into functional segments: the mounting post, the pivoting arm with timing mechanism, the weight-sensitive trigger component, and the gate engagement element. This segmentation allows each component to be optimized independently and simplifies the overall structure by distributing functions across separate elements rather than requiring a monolithic complex mechanism
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 self-closing gates to return to their closed position automatically, preventing livestock escape and damage, while allowing users to pass through without needing to exit their vehicle to close the gate.
Implementation Method 1
The return mechanism is spring-type shock absorber
Implementation Method 2
return mechanism, including a spring-type shock absorber, which temporarily holds the gate open and allows it to close automatically
Data Source
AI summary
A gate holder is normally in an open position. When pulled down, a return mechanism is compressed and a gate holding portion engages a self-closing gate for a period of time sufficient to allow a user to move through the gate, and which automatically returns to its open position allowing the gate to close without further interaction by the user.