Packing Case Bottom Plate Interlocking Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional packing cases require adhesive tapes for assembly, which complicates the process and may damage objects being packed, and lack effective support structures to absorb impacts.
Innovation Solution
A packing case design featuring a quadrangular body with foldable side plates and bottom plate pieces that form an entangled bottom without adhesives, incorporating support pieces to securely hold and cushion objects, such as a toner container, by engaging the pieces via specific recesses and protrusions to create a stable and impact-absorbing structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If adhesive tapes are used for assembly, then the bottom part can be assembled, but the assembly process becomes complicated and objects may be damaged
Solution Approach 1:
The patent replaces the chemical bonding system (adhesive tapes) with a mechanical interlocking system. The bottom plate pieces have engagement protrusions that fit into engagement recesses on adjacent pieces, creating a mechanical connection that eliminates the need for adhesive tapes and simplifies the assembly process.
Solution Approach 2:
The bottom plate pieces are designed with self-aligning engagement features where protrusions on one piece automatically fit into recesses on adjacent pieces. This self-service mechanism allows the parts to assemble themselves without requiring external adhesives or complex assembly tools, reducing both material requirements and assembly complexity.
2Ease of operation
If conventional bottom assembly is used, then assembly is simple, but there is no effective support structure to absorb impacts
Solution Approach 1:
The patent applies local quality by creating a three-dimensional entangled structure where specific regions of the bottom plate pieces engage with each other through protrusions and recesses. This localized engagement creates a complex interlocked network that provides both structural integrity for simple assembly and distributed support surfaces for impact absorption, addressing both requirements simultaneously.
Data Source
AI summary
A packing case includes a body part having a quadrangular section and a bottom part for closing a lower opening of the body part. The body part includes first to fourth side plates forming sides of the quadrangle, and first to fourth bottom plate pieces are respectively connected to lower end parts of the first to fourth side plates via fold lines. The bottom part is configured by allowing the first to fourth bottom plate pieces folded to a side of the lower opening along the fold lines to be integrally engaged with one another and to be connected with one another, and at least one support piece, which is able to assemble support body that support an object to be packed, is connected to at least one of the first to fourth bottom plate pieces.