Drivable Shopping Basket Handle Rotation and Base Stability
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Solution Overview
Problem
Conventional shopping baskets with wheels lack a secure mechanism for coupling the secondary handle to the main body, allowing it to rotate and fold in multiple directions, and have flat bases that cause containers to topple during transport, leading to instability and potential breakage.
Innovation Solution
A shopping basket design featuring a secondary handle with a hinge and swivel joint for secure coupling to one side of the main body, allowing rotation in different directions, and a curved base structure that inclines containers to prevent them from falling, with stops limiting the handle's folding angles and a recess system for retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the secondary handle is coupled to two points on the larger sides of the basket, then the handle can be folded towards one end or another without hindering opening, but the handle cannot rotate in different directions making it difficult to transport
Solution Approach 1:
The secondary handle is divided into two separate handles, each coupled to one of the lesser sides of the main body. This segmentation allows each handle to rotate independently in different directions, providing versatility while maintaining ease of operation during transport.
Solution Approach 2:
The handle coupling is moved from the larger sides to the lesser sides of the main body, and the handles are configured to rotate in multiple dimensions rather than being constrained to a single folding plane. This dimensional change enables rotation in different directions while preserving the folding capability.
2Stability of the object's composition
If the base is flat, then the structure is simple, but articles easily topple over and fall towards the centre during transport
Solution Approach 1:
The base is designed with a curved surface that slopes downward toward the center, creating a self-centering effect. Containers placed on the base naturally roll or slide toward the center low point, preventing them from toppling over during transport while maintaining structural simplicity.
3Adaptability or versatility
If the secondary handle is coupled securely to the main body, then the handle structure is stable, but the handle cannot adapt to user direction changes
Solution Approach 1:
The secondary handles are designed with rotation capabilities that allow them to dynamically adapt to user pulling directions while maintaining secure coupling to the main body. The handles can rotate within controlled ranges defined by the coupling mechanisms, providing both stability and adaptability.
Data Source
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AI summary
Which comprises a main body (1) provided with a secondary coupled pulling handle which in its folded position remains supported in some first projections provided in the edge of the main body (1) without hindering its opening; it is characterised in that the secondary handle comprises a piece in the form of a frame which defines a contour closed in its perimeter, one of whose lesser sides is coupled in one of the lesser sides of the main body (1). In one embodiment the coupling of the secondary handle is effected by means of a hinge or swivel joint, and in another by means of an extension which defines a recess (9) in which is housed, with the possibility of rotation, a coupling shaft (10) materialised in one section of the actual secondary handle (6). The invention furthermore refers to the base of the main body (1) in which provision has been made for a central elevation which decreases and becomes reduced towards the side walls in order to maintain the products contained inside inclined and resting against the side walls, keeping them stable.