Rotatable Handle Mechanism for Stackable Storage Units
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Solution Overview
Problem
Existing storage units face challenges in efficiently coupling and decoupling with other units, particularly when space restrictions are present, and in allowing easy transition between carrying and open positions without obstructing the lid's movement.
Innovation Solution
A storage unit design featuring a housing with a pivotable lid and an extendable handle that rotates about an axis, with coupling components on the bottom surface for stacking, and a handle system with multiple segments that can pivot around distinct axes, allowing for adjustable positions that either block or allow lid opening based on handle orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle is kept in a fixed extended position for easy carrying, then carrying convenience is improved, but the lid cannot be opened due to handle interference
Solution Approach 1:
The handle is designed to be rotatable about an axis relative to the housing, allowing it to dynamically change position between a carrying position (extended) and an open position (retracted or rotated away). This dynamic adjustment resolves the contradiction by enabling the handle to adapt its configuration based on whether carrying or lid opening is the intended operation.
Solution Approach 2:
The handle mechanism is divided into separable components: the handle itself and the housing with which it is rotatably coupled. This segmentation allows independent movement of the handle relative to the housing and lid, enabling the handle to be positioned out of the lid's path while maintaining carrying functionality when needed.
2Ease of operation
If the handle is retracted to allow lid opening, then lid accessibility is improved, but carrying stability is reduced
Solution Approach 1:
The rotatable handle mechanism allows dynamic repositioning: when the lid needs to be opened, the handle can be rotated or retracted to clear the lid's path, improving accessibility. When carrying is required, the handle can be rotated to an extended position for better grip and stability, thus resolving the contradiction through dynamic adaptation.
3Adaptability or versatility
If multiple handle segments rotate around distinct axes for adjustable positioning, then positioning flexibility is improved, but device complexity increases
Solution Approach 1:
The handle is divided into multiple segments that can rotate independently around distinct axes. Each segment provides a degree of freedom for positioning, allowing the handle to achieve various configurations (extended, retracted, angled) to accommodate different carrying and accessing scenarios. This segmentation enables flexible positioning while keeping each individual rotation mechanism relatively simple.
Solution Approach 2:
The multi-segment rotatable design allows the handle to dynamically adjust its configuration through rotations around different axes. This dynamic adaptability provides positioning flexibility for various operational modes (carrying, stacking, lid opening) without requiring a completely complex mechanism, as each segment's rotation is independently controlled.
4Adaptability or versatility
If coupling components are added to the bottom surface for stacking, then modular stacking capability is improved, but device complexity increases
Solution Approach 1:
The bottom surface of the housing is equipped with coupling components that enable the storage unit to function both as a standalone container and as part of a stackable modular system. These coupling components allow the unit to be stacked with identical units, providing versatility without significantly complicating the basic housing structure, as the coupling mechanism integrates with the existing bottom surface design.
Data Source
AI summary
Various carrying mechanisms to transport a storage device, container or unit are shown. The carrying mechanisms actuate between various positions that may interfere with opening a lid of the storage unit. Various configurations of the carrying mechanisms reduce their profile when in use. Also described are multi-segmented carrying mechanisms that provides a beneficial weight distribution while facilitating actuating the carrying mechanism between different positions.