Carrying Rack Connector Assembly for Gap-Free Rod Locking

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Solution Overview

Problem

Conventional carrying rack connecting devices experience instability and wear due to gaps between the connecting rod and mounting rod, leading to deformation and detachment issues during vehicle movement.

Innovation Solution

A carrying rack connecting device featuring a connection rod with perpendicular through holes and a connection assembly comprising a base, an urging member, and an operation member, where the urging member is movable to securely engage the mounting rod, ensuring stable assembly and preventing wear.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a connecting rod and mounting rod are connected by insertion with a connecting member, then the structure is simple and easy to manufacture, but the connection is unstable due to gaps between the rods

Engineering Contradiction:
Improveease of manufactureVSAvoidconnection stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

An urging member is introduced as an intermediary component between the connecting rod and mounting rod. This urging member is elastically deformable and can be compressed to eliminate gaps, providing stable contact and preventing relative movement between the rods while maintaining the simple insertion-based connection structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The urging member changes its physical state from a compressed elastic state to a relaxed state, or vice versa, during the connection process. When the connecting rod is inserted, the urging member is compressed, changing its shape and providing continuous contact pressure to eliminate gaps and ensure stable connection.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If a bolt is used as an adjusting member to connect the rods, then the connection can be adjusted, but the bolt deforms and wears due to wobbling and collision during vehicle movement

Engineering Contradiction:
ImproveadjustabilityVSAvoidcomponent durability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The urging member serves as a mediator that absorbs the impact and wobbling forces between the bolt and the rod surfaces. By providing continuous elastic contact, it prevents direct collision and wear between the bolt and rod surfaces, extending component durability while maintaining adjustability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The urging member provides beforehand cushioning by being pre-compressed or designed to compress during connection, creating a cushioning effect that absorbs subsequent vibrations and collisions during vehicle movement, preventing wear and deformation of the bolt and rod surfaces.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Duration of action of moving object

If the through hole is enlarged to accommodate wear, then the adjusting member can continue to function, but the connection becomes less stable and the adjusting member may detach

Engineering Contradiction:
Improveservice lifeVSAvoidconnection stability
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

The urging member provides beforehand cushioning that prevents the wear and enlargement of the through hole in the first place. By absorbing vibrations and preventing direct contact between the bolt and rod surfaces, it eliminates the need to enlarge the hole, maintaining connection stability throughout the service life.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The urging member converts the potentially harmful vibrations and collisions into beneficial elastic deformation, absorbing the energy that would otherwise cause wear and hole enlargement. This transforms a harmful mechanical interaction into a protective cushioning mechanism.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

4Reliability

If the adjusting member is tightly secured to prevent detachment, then connection stability improves, but the assembly and disassembly process becomes difficult

Engineering Contradiction:
Improveconnection stabilityVSAvoidease of assembly and disassembly
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The urging member provides dynamic cushioning that adapts to the connection state. During assembly, it compresses to guide and secure the bolt; during normal operation, it maintains stable contact; during disassembly, it allows controlled movement. This dynamic behavior ensures stability without making assembly or disassembly difficult.

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 provides a stable and secure connection between the connection rod and mounting rod, preventing deformation and detachment, making assembly easier and safer.

Implementation Method 1

The operation member includes a threaded portion and an enlarged portion connected with each other, the threaded portion having a diametric dimension smaller than a diametric dimension of the enlarged portion, the threaded portion being screwed to the base

Methodology Applied
Scientific EffectThreading: Screw

Implementation Method 2

the enlarged portion including a second abutting portion, at least one of the second abutting portion and the first abutting portion extending in a direction tilted to the first direction and the second direction; wherein when the second abutting portion pushes the first abutting portion in the second direction, the first abutting portion slides relatively on the second abutting portion so that the enlarged portion pushes the urging member to protrude out from the first through hole in the first direction

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS11859654B2Carrying rack connecting device
Publication Date: 2024.01.02 YOTTA INNOVATION CO LTD
  • US11859654B2 patent drawing
  • US11859654B2 patent drawing
  • US11859654B2 patent drawing

AI summary

A carrying rack connecting device is provided, including a connection rod and a connection assembly. The connection rod is configured to be connected to a mounting rod. The connection assembly has a base, an urging member and an operation member. The base is positioned inside the connection rod. The base has an operation space. The urging member is movably disposed within the operation space. The urging member has a first abutting portion. The operation member is disposed through the operation space and connected with the base. The operation member has a thread portion and an enlarged portion. The thread portion is screwed to the base. The enlarged portion has a second abutting portion. The second abutting portion is configured to push the first abutting portion.