Latching assemblies for door-in-door refrigerator appliances
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Door-in-door refrigerator appliances often have latching mechanisms that are difficult to unlatch, inconvenient to access, and prone to unintentional unlatching, which complicates user interaction and security.
Innovation Solution
A latching assembly with a trigger mechanism that moves within a plane perpendicular to the vertical direction, allowing the latch to disengage from the catch, enabling secure closure and easy independent operation of inner and outer doors, and featuring a visible trigger design to prevent accidental actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional latching mechanism is used, then the outer door can be secured to the inner door, but the latch is difficult to unlatch and prone to unintentional unlatching
Solution Approach 1:
The trigger mechanism moves in a plane perpendicular to the vertical direction, changing the dimension of actuation from vertical to horizontal. This allows the user to unlatch by pushing the trigger sideways rather than pulling upward, making the latch easier to access and operate while maintaining secure engagement when closed
2Ease of operation
If the trigger is positioned for easy access, then user convenience is improved, but the latch becomes prone to accidental actuation
Solution Approach 1:
The trigger is positioned on the outer surface of the handle where it is easily visible and accessible to the user, but the actuation requires a deliberate pushing motion that is unlikely to occur accidentally. The local positioning on the handle surface provides both visibility and controlled accessibility
Data Source
AI summary
A latching assembly for a refrigerator appliance having inner and outer doors includes a catch and a latch. The latch is operable to engage the catch. As a result of such engagement, the inner and outer doors are latched together when the latch is engaged with the catch. The latching assembly also includes a trigger connected to the latch. The trigger is movable within a plane perpendicular to the vertical direction from a first position to a secondary position. The latch moves within the plane perpendicular to the vertical direction when the trigger moves to the secondary position. As a result, the latch is disengaged from the catch by moving the trigger within the plane perpendicular to the vertical direction to the secondary position.