Rear View Mirror Snap-Fit Connection Assembly

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Solution Overview

Problem

Existing rear view mirror assemblies require multiple threaded fasteners for connection, which can be incorrectly installed or loosened over time, leading to operational failures and safety issues due to the complexity of assembly.

Innovation Solution

A snap-fit connection system with integrated screw holes that replaces multiple mounting studs, allowing for a simplified assembly process using a single screw solution, enhancing reliability and reducing production costs by integrating snap-fit connectors and screw holes into the mirror housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If multiple threaded fasteners are used to connect mirror components, then the connection strength is sufficient, but the assembly complexity increases and the risk of incorrect installation or loosening over time worsens

Engineering Contradiction:
Improveconnection strengthVSAvoidassembly complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent combines multiple separate mounting studs into a single integrated snap-fit connector that incorporates multiple mounting apertures. This merging reduces the number of individual fasteners from multiple threaded fasteners to one unified component, simplifying assembly while maintaining connection strength through the distributed aperture design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The snap-fit connector serves multiple functions simultaneously: it provides structural support, enables snap-fit attachment, and incorporates multiple mounting apertures for secure fastening. This multi-functional design replaces the need for separate mounting studs and fasteners, reducing assembly complexity while maintaining connection reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Stability of the object's composition

If multiple mounting studs with circular bodies are used, then the components are fixed rigidly without pivoting, but the number of molding pistons and production costs increase

Engineering Contradiction:
Improverigid fixationVSAvoidproduction cost
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent merges multiple separate mounting studs into a single molded connector component. Instead of requiring multiple independent molding operations with separate pistons for each circular mounting stud, the design integrates all mounting apertures into one connector that can be molded as a single piece, reducing the number of molding pistons required and lowering production costs.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connector incorporates multiple mounting apertures arranged in a pattern that provides rigid fixation. By segmenting the mounting function into multiple apertures within a single connector rather than using multiple separate studs, the design maintains rigid fixation capability while simplifying the molding process.

Inventive Principle:
Principle #1Segmentation

3Strength

If separate fasteners are used for assembly, then the mirror components can be securely connected, but the assembly time and labor requirements increase

Engineering Contradiction:
Improveconnection reliabilityVSAvoidassembly efficiency
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The patent combines multiple fastening functions into a single snap-fit connector that can be installed in one operation. Instead of requiring assemblers to handle and install multiple separate threaded fasteners, the unified connector with integrated mounting apertures allows for single-step attachment, significantly improving assembly efficiency while maintaining connection reliability through the multi-aperture design.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP2233360B2Snap fit connection in a rear view mirror
Publication Date: 2016.07.13 SMR PATENTS S A R L
  • EP2233360B2 patent drawingFigure 1~2
  • EP2233360B2 patent drawingFigure 3~4
  • EP2233360B2 patent drawingFigure 5~6

AI summary

The invention is related to an external rear view mirror assembly comprising a connection mean that fits mirror components as a support frame mounted to a mirror housing or shell. More especially the invention is related to method to assemble a rear view mirror in a few steps.