Rebar Clip With Diameter Reducing Tabs

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Solution Overview

Problem

Existing resilient plastic clips for joining reinforcing bars are limited in their ability to effectively connect bars of different sizes, particularly in perpendicular orientations, and lack versatility in application tools.

Innovation Solution

The design of a rebar clip with diameter reducing tabs that can be positioned in either the upper or lower arches to accommodate rebars of varying diameters, along with a clip applying apparatus featuring a guide track that accommodates clips with or without diameter reducing tabs, allowing for flexible use across different rebar sizes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a resilient plastic clip is designed to connect bars of equal diameter, then the clip structure is simple and manufacturing is easy, but the clip cannot effectively connect bars of different sizes

Engineering Contradiction:
Improveability to connect bars of different sizesVSAvoidclip structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The clip incorporates diameter reducing tabs at specific locations (upper or lower arches) that create localized variations in the clip's internal diameter. These tabs are positioned to engage with smaller diameter rebars while the main body of the clip maintains compatibility with larger diameter rebars, allowing the same clip design to accommodate different bar size combinations through selective tab positioning.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The clip design achieves multi-functionality by incorporating both upper and lower diameter reducing tabs, enabling the same clip structure to connect bars of different sizes in various orientations. The clip can be manufactured in versions with tabs positioned in either the upper or lower arches, providing universal applicability across different rebar configuration scenarios without requiring multiple specialized clip types.

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

2Reliability

If separate clips are designed for equal diameter and different diameter bars, then each clip is optimized for its specific function, but manufacturing costs increase and inventory complexity increases

Engineering Contradiction:
Improveconnection effectivenessVSAvoidmanufacturing cost and inventory management
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The clip design integrates multiple functions into a single product by incorporating diameter reducing tabs that can be positioned in either the upper or lower arches. This allows one clip design to serve multiple purposes: connecting equal diameter bars, connecting different diameter bars with the smaller bar on top, and connecting different diameter bars with the smaller bar on the bottom, thereby reducing the number of different clip types that need to be manufactured and inventoried.

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

Solution Approach 2:

The clip design allows for dynamic configuration through the optional positioning of diameter reducing tabs in either the upper or lower arches. This flexibility enables the same basic clip structure to adapt to different application requirements, maintaining connection reliability across various scenarios while simplifying manufacturing and inventory management by using a single adaptable design rather than multiple specialized designs.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If a clip applying apparatus is designed for specific clip types, then the application process is precise and reliable, but the apparatus cannot accommodate different clip variations

Engineering Contradiction:
Improveapparatus compatibility with different clipsVSAvoidapplication process simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The clip applying apparatus is designed with universal compatibility by incorporating a guide track that can accommodate clips with diameter reducing tabs in either the upper or lower arches. The guide track geometry is configured to guide both variations of clips through the application process, allowing a single apparatus to apply different clip types without requiring changes to the apparatus itself, thereby maintaining ease of operation while increasing adaptability.

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

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

Enables secure joining of rebars of different diameters in both transverse and parallel orientations, simplifying the process and reducing manufacturing costs by utilizing existing molds and tools, while maintaining ease of use in the field.

Implementation Method 1

resilient plastic clips for use in joining reinforcing bars

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

A pair of opposed diameter reducing tabs extend toward each other into the lateral openings of one of said lower and upper pairs of lateral openings to engage the smaller nominal diameter rebar

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP2582894B1Rebar clip for joining different size bars
Publication Date: 2017.05.17 KODI KLIP LLC
  • EP2582894B1 patent drawingFigure 1~4
  • EP2582894B1 patent drawingFigure 5~7
  • EP2582894B1 patent drawingFigure 8~12

AI summary

A rebar clip (10) is provided for joining a larger diameter rebar (12) to a smaller diameter rebar (14) transverse to the larger diameter rebar (12). The rebar clip (10) includes diameter reducing tabs (42, 44) extending into one of lower (22, 24) and upper (38, 40) pairs of lateral openings to engage the rebars (12, 14).