Hinge Bracket Assembly with Locking Arm for Appliance Door Alignment
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Solution Overview
Problem
Existing hinge bracket assemblies for appliance doors lack efficient and secure coupling mechanisms that prevent inadvertent movement and provide stable alignment, leading to potential misalignment and instability.
Innovation Solution
A hinge bracket assembly with an anchor plate and hinge plate design featuring a retention member, flanges, and a locking arm that rotates between locked and unlocked positions, ensuring secure coupling and alignment through a combination of apertures and protrusions, along with a corner member for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional hinge bracket assembly is used, then the structure is simple, but the coupling stability and alignment precision are insufficient
Solution Approach 1:
The hinge bracket assembly is divided into distinct functional components: an anchor plate with receiving spaces for positioning, a hinge plate with a protrusion for connection, and a locking arm with a nose for securing. This segmentation allows each component to perform its specific function effectively, improving coupling stability while maintaining reasonable structural complexity.
Solution Approach 2:
The protrusion of the hinge plate is received within a slot defined by the retention member of the anchor plate, creating a nested connection. The locking arm's nose is then received within aligned apertures of both the anchor and hinge plates, forming another nested layer. This nested structure ensures precise alignment and secure coupling without excessive complexity.
2Manufacturing precision
If a secure coupling mechanism is implemented with multiple receiving spaces and locking components, then alignment precision and stability are improved, but the device complexity increases
Solution Approach 1:
The anchor plate features three distinct receiving spaces (first, second, and third) with different orientations and functions. The first receiving space guides the retention member, the second receives the first flange, and the third receives the second flange. This local differentiation of receiving spaces provides precise alignment in multiple directions without requiring an overly complex overall structure.
Solution Approach 2:
The protrusion and slot design allows the hinge plate to self-align with the anchor plate during assembly. The locking arm with its nose automatically engages with the aligned apertures when the protrusion is received by the slot, providing self-servicing alignment functionality that reduces the need for additional alignment mechanisms.
3Reliability
If a locking arm mechanism is added to prevent inadvertent movement, then the reliability of door coupling is improved, but the ease of operation decreases
Solution Approach 1:
The locking arm is designed to be movable between a locked position (where the nose engages the apertures) and an unlocked position (where the nose is disengaged). This dynamic capability allows the hinge to transition between secured and adjustable states, providing both reliability during normal operation and ease of adjustment when needed.
Solution Approach 2:
The nose of the locking arm acts as an intermediary element that mediates between the anchor plate and hinge plate. It can engage with the apertures to provide secure coupling or disengage to allow adjustment, serving as a mechanical mediator that balances reliability and ease of operation without requiring complex control systems.
Data Source
AI summary
A hinge bracket assembly includes an appliance wrapper defining a first receiving space extending in a first direction, a second receiving space extending in a second direction substantially perpendicular to the first direction, and a third receiving space extending in a third direction oriented at an acute angle relative to the first direction. An anchor plate is engaged with the appliance wrapper and includes a retention member received by the first receiving space, a first flange received by the second receiving space, and a second flange received by the third receiving space. A hinge plate is coupled with the anchor plate and includes a protrusion received by a slot defined by the retention member. The appliance wrapper is positioned between the anchor and hinge plates. A locking arm is selectively engaged with the anchor and hinge plates and is rotatable between an unlocked position and a locked position.