Interlocking Joint Structure Without Bolts or Rivets
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing joint structures between reinforced and reinforcing members rely on adhesives and bolts or rivets, which inadequately secure mechanical strength and require penetration holes, increasing complexity and reducing efficiency.
Innovation Solution
A joint structure where a connection member with first and second coupling portions is used, coupled by adhesive or welding, and shaped to interlock with the joint portion, eliminating the need for bolts or rivets and ensuring mechanical strength through interlocking design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a bolt or rivet is used to couple the connection member to the reinforcing member, then mechanical strength of the coupled portion is improved, but penetration holes are required which increases device complexity and reduces productivity
Solution Approach 1:
The patent replaces the mechanical fastening system (bolts or rivets requiring penetration holes) with a chemical bonding system (adhesive). The connection member includes a coupling portion coupled to the reinforcing member by an adhesive, eliminating the need for penetration holes and mechanical fasteners while maintaining mechanical strength of the coupled portion.
2Device complexity
If only an adhesive is used to couple the connection member to the reinforcing member, then device complexity is reduced and productivity is improved, but mechanical strength of the coupled portion becomes insufficient
Solution Approach 1:
The connection member is divided into distinct functional portions: a coupling portion for adhesive coupling to the reinforcing member, and a connecting portion for connecting to the reinforced member. This segmentation allows the adhesive to be applied effectively at the coupling portion while the interlocking geometry at the connecting portion provides mechanical strength, resolving the contradiction between simplified structure and sufficient strength.
Solution Approach 2:
The patent employs a composite coupling approach combining chemical bonding (adhesive) and mechanical interlocking (interlocked shape between connecting portion and recess). This composite method provides both the simplicity of adhesive application and the mechanical strength previously requiring bolts or rivets.
3Reliability
If bolts or rivets are used to ensure mechanical strength, then reliability of the joint structure is improved, but the number of components increases and assembly time is extended
Solution Approach 1:
The patent replaces the mechanical fastening system (bolts or rivets requiring multiple steps: hole formation, fastener insertion, tightening) with a simplified adhesive bonding process. The connection member is coupled to the reinforcing member by an adhesive at the coupling portion, and the interlocked shape at the connecting portion provides immediate mechanical engagement, significantly reducing assembly steps and time while maintaining joint reliability.
4Strength
If penetration holes are formed for bolts or rivets, then mechanical strength is secured, but manufacturing complexity and processing time increase
Solution Approach 1:
The patent eliminates the need for penetration hole formation by replacing mechanical fasteners with adhesive bonding. The coupling portion is designed to receive and bond with the adhesive, while the interlocked shape between the connecting portion and recess provides mechanical strength without requiring any penetration holes, significantly simplifying the manufacturing process.
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 interlocking design enhances mechanical strength without requiring penetration holes, reducing component count, and simplifies assembly by eliminating the need for additional fasteners, thereby improving structural integrity and efficiency.
Implementation Method 1
the first coupling portion is coupled to a joint portion of the one by an adhesive or welding
Implementation Method 2
the first coupling portion is coupled to a joint portion of the one by an adhesive or welding
Data Source
AI summary
A joint structure includes a connection member provided between a reinforced member and a reinforcing member and connecting both of them to each other. The connection member includes a first coupling portion and a second coupling portion that are coupled to one and another of the reinforced member and the reinforcing member, respectively. The first coupling portion is coupled to a joint portion of one of the reinforced member and the reinforcing member by an adhesive or welding. The first coupling portion and the joint portion are shaped so as to be caught by each other in a joining direction in which the reinforced member and the reinforcing member are joined to each other.