Tapered Hinge Recess for Child Safety Gate Angular Strain
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Solution Overview
Problem
Conventional child safety gates can suffer hinge damage due to accidental twisting or horizontal forces, leading to impaired movement and latch misalignment, as they are not designed to accommodate angular movements.
Innovation Solution
A gate assembly with tapered hinge pin recesses and channels allowing angular motion, combined with resilient biasing means for horizontal movement, to absorb angular strain and prevent hinge damage, along with adjustable latch mechanisms for secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vertical lifting force is required to open the gate, then child safety is improved, but hinge damage occurs due to accidental twisting or horizontal forces
Solution Approach 1:
The hinge mechanism is designed to dynamically adapt to different opening forces by allowing horizontal movement through the tapered channel. The channel's geometry enables the hinge pin to move horizontally in response to twisting forces while maintaining vertical latching capability, preventing hinge damage without compromising child safety
Solution Approach 2:
The tapered channel changes the geometric parameters of the hinge connection, allowing horizontal displacement of the hinge pin. This parameter change enables the hinge to accommodate angular strain from twisting forces while maintaining its primary vertical latching function, resolving the contradiction between safety and durability
2Ease of manufacture
If the hinge is designed for vertical movement only, then manufacturing is simplified, but the gate cannot accommodate angular strain from twisting forces
Solution Approach 1:
The hinge mechanism is segmented into two functional components: the vertical latching function (maintained by the latch and keeper) and the horizontal movement function (provided by the tapered channel). This segmentation allows the hinge to be manufactured simply while accommodating angular strain through the added horizontal degree of freedom
Solution Approach 2:
The tapered channel acts as an intermediary element between the hinge pin and the gate frame. It mediates the twisting forces by converting them into horizontal movement of the hinge pin, protecting the main hinge structure from direct angular strain while maintaining manufacturing simplicity
3Ease of manufacture
If the hinge pin is fixed in a standard recess, then assembly is simplified, but the latch mechanism becomes misaligned due to hinge damage
Solution Approach 1:
The tapered channel is pre-designed into the hinge recess to anticipate and accommodate twisting forces before they can cause damage. This preliminary structural preparation ensures that the hinge pin can move horizontally to maintain latch alignment even when twisting forces are applied, preventing misalignment while keeping assembly simple
Data Source
AI summary
A gate assembly is provided for positioning in an opening through which selective entry is required. The gate assembly includes barrier means mountable directly or indirectly to one or more surrounding surfaces defining the opening. Hinge means are provided to allow the barrier means to be movable relative to the surrounding surfaces in use between a closed position, wherein the opening is closed, to an open position, wherein the opening is open. The hinge means include a hinge pin movably mounted in a channel or recess. The channel or recess receiving the hinge pin in use has a taper which narrows from an opening of said channel or recess through which said hinge pin is located in use towards a base or opposite end of said recess or channel.