Refrigerator Bin Storage Clip and Cap Mechanism
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Solution Overview
Problem
Existing refrigerator designs lack efficient mechanisms to securely and smoothly transition storage bins between retracted and advanced positions, leading to potential lateral and longitudinal movement issues during use.
Innovation Solution
A bin storage system featuring a pull-out bin with a frame and receptacle, secured by clips and caps with recesses and protrusions, and guided by rails, which allows for secure transition between positions while restricting lateral movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a pull-out bin is secured to the door using simple attachment mechanisms, then the device complexity is reduced, but lateral movement and stability of the bin deteriorate
Solution Approach 1:
The attachment mechanism is divided into separate functional components: clips attached to the bin frame, rails attached to the door, and caps with recesses that interface between them. This segmentation allows each component to be optimized for its specific function while maintaining overall system stability without excessive complexity.
Solution Approach 2:
The cap structure incorporates recesses that receive and nest the protrusions from the clips, creating a nested attachment configuration. The cap is disposed along the end of the rail, and the protrusion extends into the recess to engage the cap within the recess, forming a nested securement arrangement that provides stability.
2Ease of operation
If the bin is allowed to move freely along the rails for easy access, then the ease of operation is improved, but uncontrolled lateral and longitudinal movement increases
Solution Approach 1:
The cap acts as an intermediary element between the rail and the clip protrusion. The recess in the cap receives the protrusion while the cap itself is disposed along the end of the rail, mediating the connection to allow controlled movement along the rail while preventing uncontrolled lateral and longitudinal displacement.
Solution Approach 2:
The attachment mechanism provides different degrees of freedom in different directions: the recess and protrusion geometry allows smooth movement along the rail direction while restricting lateral and longitudinal movement. This local quality differentiation enables easy operation in the intended direction while maintaining position control in other directions.
3Loss of energy
If the bin transitions smoothly between positions, then the friction and mechanical wear are reduced, but the complexity of the guiding mechanism increases
Solution Approach 1:
The clip and cap attachment mechanism is designed to self-align and self-secure during bin movement. The protrusion automatically engages with the recess as the bin transitions between positions, and the biasing element maintains constant contact pressure without requiring external adjustment or complex guiding components, reducing mechanical wear through self-regulating operation.
Solution Approach 2:
The attachment mechanism incorporates a biasing element that provides dynamic adjustment during bin movement. The spring-loaded clip maintains optimal contact pressure with the cap throughout the transition, adapting to variations in position and load to ensure smooth movement while minimizing friction and wear without requiring complex active control systems.
Data Source
AI summary
A storage system for a refrigerator includes a drawer, a rail, a cap, and a clip. The drawer has a frame and a bin removably disposed on top of the frame. The rail is movably secured to the frame such that the drawer is operable to transition between deployed and stowed positions. The cap is disposed along an end of the rail and defines a recess extending laterally inward therefrom. The clip extends downward from the frame and comprises a laterally extending protrusion. The laterally extending protrusion extends into the recess and engages the cap within the recess to secure the frame to the rail and restrict lateral movement of the frame relative to the rail.