Display Chassis Cover Assembly Using Elastic Wire Hook Coupling

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Solution Overview

Problem

The assembly of display apparatuses using screws requires additional tools and increases production costs and time, making it difficult to manufacture thin and efficient display products.

Innovation Solution

A display apparatus with a chassis and cover that utilize a first coupling unit with an elastic linear member and a second coupling unit with a detaching guide part, allowing for easy detachment and assembly without the need for screws, using a wire and hook mechanism that reduces production costs and time while enabling a slim design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screws are used to assemble components, then the assembly is secure and reliable, but additional tools are required and production cost increases

Engineering Contradiction:
Improveassembly reliabilityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent extracts the fastening function from traditional screws and implements it through an integrated elastic coupling structure. The elastic member (spring) is built into the coupling unit itself, eliminating the need for separate screws and tools, thereby reducing production cost while maintaining assembly reliability through the elastic retention mechanism.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The elastic coupling structure is self-contained and self-servicing. The elastic member automatically provides the necessary fastening force without requiring external tools or additional components. The coupling unit itself generates the retention force through its elastic deformation, making the assembly process simpler and more cost-effective.

Inventive Principle:
Principle #25Self-service

2Strength

If screws are used to assemble components, then the connection is strong, but assembly time increases

Engineering Contradiction:
Improveconnection strengthVSAvoidassembly speed
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The patent removes the time-consuming screw fastening step by extracting the fastening function and integrating it into the elastic coupling structure. The elastic member provides immediate connection strength upon engagement, eliminating the need for sequential screw tightening operations and significantly accelerating assembly speed.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the fastening function with the coupling structure itself. The elastic member and coupling geometry are combined into a single integrated unit that provides both connection and retention functions simultaneously, allowing for faster assembly while maintaining strong connections.

Inventive Principle:
Principle #5Merging (Combining)

3Strength

If screws are used for assembly, then components are securely fastened, but the display apparatus cannot be made thin

Engineering Contradiction:
Improvefastening strengthVSAvoidapparatus thickness
Core Design Contradiction:
StrengthVSLength of stationary object

Solution Approach 1:

The patent extracts the thick screw thread structure and replaces it with a compact elastic coupling mechanism. The elastic member can be compressed within a minimal space to provide the necessary fastening strength, allowing the display apparatus to achieve a thin profile while maintaining secure component attachment.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The elastic member acts as a flexible element that can be compressed within a thin profile. This flexible component provides the necessary mechanical strength for fastening without requiring the thickness of traditional screw threads, enabling the overall apparatus to be made thinner.

Inventive Principle:
Principle #30Flexible shells and thin films

4Reliability

If traditional coupling methods are used, then assembly is secure, but disassembly and maintenance become difficult

Engineering Contradiction:
Improveassembly securityVSAvoiddisassembly ease
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The patent employs a dynamic elastic coupling mechanism that can easily transition between coupled and uncoupled states. The elastic member allows for simple engagement by compression and easy disassembly by releasing the elastic force, making maintenance and repair straightforward while maintaining secure assembly during operation.

Inventive Principle:
Principle #15Dynamics

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 solution reduces the need for screws, simplifies assembly and disassembly, and allows for a thinner design by eliminating the requirement for screw thread thickness, thereby decreasing production costs and time while facilitating easier maintenance.

Implementation Method 1

a first coupling unit provided on one of the chassis and the cover and provided with a linear member having an elasticity

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3176631B1Display apparatus
Publication Date: 2021.05.19 SAMSUNG ELECTRONICS CO LTD
  • EP3176631B1 patent drawingFigure 1
  • EP3176631B1 patent drawingFigure 2
  • EP3176631B1 patent drawingFigure 3

AI summary

Disclosed herein is a display apparatus having an improved structure to improve an assembly performance of a product. The display apparatus includes a chassis disposed in a rear side of a display module to support the display module, a cover detachably coupled to the chassis and forming an appearance, a first coupling unit provided on one of the chassis and the cover and provided with a linear member having an elasticity, and a second coupling unit provided on the other of the chassis and the cover and detachably coupled to the first coupling unit.