Snap-Fit Bedstead Rail Connector to Replace Welding Assembly

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Solution Overview

Problem

The existing mounting structures for bedsteads, which rely on welding metal parts, increase labor and manufacturing costs and pose risks of injury during the assembly process.

Innovation Solution

A mounting structure for a bedstead that connects side rails and cross rails using a snap-fit connecting member with U-shaped grooves and screws, eliminating the need for welding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If welding is used to connect side rail and cross rail, then the connection strength is improved, but labor cost and manufacturing cost increase

Engineering Contradiction:
Improveconnection strengthVSAvoidmanufacturing cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent replaces the welding process (thermal/mechanical system) with a mechanical connection system consisting of a connecting member with U-shaped grooves that snap-fit onto the rails. This substitution eliminates welding operations while maintaining connection strength through the snap-fit mechanical engagement between the connecting member and the rail components.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The connecting member acts as an intermediary component between the side rail and cross rail. Instead of directly welding the rails together, the connecting member mediates the connection through its U-shaped grooves that receive and secure the rail ends, simplifying the assembly process and reducing manufacturing complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If welding is used to connect side rail and cross rail, then the connection strength is improved, but safety risks of injury to persons and property increase

Engineering Contradiction:
Improveconnection strengthVSAvoidsafety risks
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent eliminates welding operations by replacing them with a cold-formed mechanical connection system. The connecting member with U-shaped grooves is pressed onto the rails to create a secure snap-fit connection, completely removing the hazards associated with welding such as burns, eye damage, and fire risks.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The connecting member appears to be a simple, easily manufactured component that can be produced through stamping or forming processes. This allows for replacement if needed without the complexity and safety risks of welding, making the system safer and more maintainable.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Stability of the object's composition

If welding is used to connect side rail and cross rail, then the structural integrity is improved, but assembly time and labor cost increase

Engineering Contradiction:
Improvestructural integrityVSAvoidassembly time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The connecting member is pre-formed with U-shaped grooves that are designed to receive the rail ends. This preliminary preparation of the connecting member allows for rapid assembly where the rails are simply inserted and secured without requiring time-consuming welding operations, thus reducing assembly time while maintaining structural integrity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The mechanical snap-fit connection replaces the time-consuming welding process. The U-shaped grooves of the connecting member engage with the rails through a simple pressing or snapping action, dramatically reducing assembly time compared to welding while preserving the structural stability of the bedstead frame.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11333185B2Mounting structure for bedstead
Publication Date: 2022.05.17 GEXIN XIAMEN SPORTS EQUIP
  • US11333185B2 patent drawing
  • US11333185B2 patent drawing
  • US11333185B2 patent drawing

AI summary

A mounting structure for a bedstead includes a side rail and a cross rail of the bedstead. The side rail and the cross rail are connected by a connecting member. The connecting member includes a body. The body is provided with a first U-shaped groove in which the side rail is clamped. The opening of the first U-shaped groove faces downward. The body lateral to the first U-shaped groove is further provided with a second U-shaped groove in which the cross rail is clamped. The opening of the second U-shaped groove faces sideward. The side rail and the cross rail are quick and easy to connect, and the manufacturing cost can also be reduced.