Paper Container with Inverted Ridges for Grip
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Solution Overview
Problem
Paper containers with ridges for improved grip are prone to damage during storage and conveyance, and increasing ridge height to prevent slippage can lead to reduced storage and conveyance efficiency due to increased gaps between containers.
Innovation Solution
A paper container design featuring thermoplastic resin-laminated paper with symmetrical bent vertical folding lines and mountain-folded vertical ridges on side panels, which form projecting and recessed surfaces for secure gripping without projecting ridges, allowing for stable holding and efficient storage and conveyance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ridges are formed on body panels to prevent slippage, then ease of operation is improved, but reliability deteriorates due to damage during storage and conveyance
Solution Approach 1:
Instead of forming ridges that project outward from the body panels, the patent inverts the approach by creating recesses that indent inward into the panels. This inversion maintains the gripping function while eliminating the protruding structures that cause damage during handling and storage.
Solution Approach 2:
The patent applies local quality by creating recesses at specific locations (corner portions and mid portions of body panels) rather than uniform modifications across the entire surface. This localized approach provides gripping enhancement exactly where fingers naturally contact the container while preserving the overall structural integrity.
2Ease of operation
If ridge height is increased to prevent slippage, then ease of operation is improved, but productivity deteriorates due to reduced storage and conveyance efficiency
Solution Approach 1:
The patent inverts the conventional ridge structure into recesses, which eliminates the need for height optimization. Recesses provide grip enhancement without adding external dimensions, allowing containers to be stored and conveyed in tight arrangements without the gap problems associated with high ridges.
Solution Approach 2:
The patent changes the geometric parameter from positive projection (ridge height) to negative projection (recess depth). This parameter change maintains the functional benefit of enhanced gripping while eliminating the adverse effect of increased container envelope dimensions that reduce storage efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively prevents slippage during handling, maintains container stability, and avoids damage by eliminating protruding ridges, ensuring easy handling and efficient storage and conveyance without compromising container alignment.
Implementation Method 1
a paper material having a thermoplastic resin laminated on each of a front surface and a back surface
Implementation Method 2
the body vertical folding line through which the body front panel and the body right side panel are contiguous with each other and the body vertical folding line through which the body front panel and the body left side panel are contiguous with each other are approximately symmetrical bent lines bent toward a center of the body front panel
Implementation Method 3
mountain-folded vertical ridges on side panels, which form projecting and recessed surfaces for secure gripping
Data Source
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AI summary
Provided is a paper container, which is capable of preventing slippage at the time of grabbing the paper container to provide ease of holding and is less liable to adversely affect, for example, storage and conveyance. The paper container includes a body front panel (5), a body left side panel (6), a body right side panel (8), and a body back panel (7), which are contiguous through body vertical folding lines (1), (2), (3), and (4). A vertical direction sealing panel (25) is configured to form a quadrangular tubular body (26). The body vertical folding line (1) through which the body front panel (5) and the body right side panel (8) are contiguous with each other and the body vertical folding line (2) through which the body front panel (5) and the body left side panel (6) are contiguous with each other are approximately symmetrical bent lines bent toward a center of the body front panel (5), and the body vertical folding line (3) through which the body back panel (7) and the body left side panel (6) are contiguous with each other and the body vertical folding line (4) through which the body back panel (7) and the body right side panel (8) are contiguous with each other are approximately symmetrical bent lines bent toward a center of the body back panel (7).