Modular Strap Guide Structure for Reinforced Paper Pail Openings
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Solution Overview
Problem
Paper pail packs face issues with strength, moisture resistance, and damage to openings when lifted or moved repeatedly, due to their material properties, requiring time-consuming manual reinforcement methods to prevent wear and tear.
Innovation Solution
A modular strap guide system comprising a first module with a strap boss and protrusion accommodation parts, and a second module with a coupling protrusion, allowing easy coupling and decoupling, enhancing strap support and preventing opening damage by forming a single closed surface opening within the pail pack's double-layer structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a paper pail pack is used to reduce weight and improve recyclability, then ease of movement and environmental friendliness are improved, but strength and moisture resistance deteriorate
Solution Approach 1:
The opening reinforcement is divided into separate modular components (first module with strap boss and second module with coupling protrusion) that can be independently manufactured and assembled, allowing the paper pail pack to maintain its lightweight structure while adding strength only where needed at the opening
2Strength
If manual attachment of fiber reinforcement tape is applied to prevent opening damage, then strength is improved, but manufacturing time and complexity increase
Solution Approach 1:
The reinforcement structure is pre-formed as modular components during manufacturing, with the strap boss and coupling protrusion already in place. This eliminates the need for time-consuming manual tape attachment later, as the reinforcement is integrated into the design from the start
Solution Approach 2:
The modular strap guide components act as intermediary elements between the strap and the paper pail pack opening, providing a structured reinforcement interface that is easier to manufacture than manual tape application while delivering superior strength
3Force
If a modular strap guide system is implemented to improve strap support, then strap supporting force is improved, but device complexity increases
Solution Approach 1:
The strap guide is segmented into two main modules (first module with strap boss and second module with coupling protrusion) that can be manufactured separately and assembled together. This modular approach distributes the structural complexity across simple, standardized components rather than requiring a single complex piece
Solution Approach 2:
The modular strap guide components are designed with universal features (standardized coupling protrusions and accommodation parts) that can be applied to different pail pack sizes and configurations, reducing overall system complexity through standardization while maintaining high strap supporting capability
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
An embodiment of the present disclosure provides a strap guide including: a first module (100) including a first base (110), a strap boss (120) formed on the first base and including a first slot (50a) through which a strap passes, and at least one protrusion accommodation part (130) located at an outer circumferential portion of the strap boss and including a bore (131); and a second module (200) having a second base (210), a second slot (50b) formed in the second base, and at least one coupling protrusion (230) located at an outer circumferential portion of the second slot and configured to form a pair with the protrusion accommodation part (130), wherein the first module and the second module are coupled to form an opening having a single closed surface.