Offset Hanger with Ribs for Structural Rigidity

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Solution Overview

Problem

Existing offset hangers used to mount utilities like pipes and conduits lack structural rigidity and ease of mounting, often requiring complex manufacturing processes and higher costs, while also failing to adequately distribute cantilevered forces as per building codes.

Innovation Solution

An integrally formed offset hanger with a central retainer portion and legs, featuring ribs and gussets for reinforcement, and notches or tapered ribs to enhance flexure and accommodate various pipe sizes, reducing material usage and manufacturing complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If traditional offset hangers are used to mount utilities, then mounting functionality is provided, but structural rigidity is insufficient and manufacturing complexity increases

Engineering Contradiction:
Improvestructural rigidityVSAvoidmanufacturing complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The offset hanger body is segmented into multiple functional portions: a first leg portion for mounting to the support surface, a second leg portion for mounting to the utility, and a central retainer portion. These portions are connected through bent regions, creating a segmented structure that improves rigidity while maintaining manufacturability through integral forming

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hanger incorporates three-dimensional geometric features including bent regions that transition between legs and a central retainer portion, and ribs that extend in multiple directions. This dimensional complexity provides structural reinforcement without requiring multiple separate components, resolving the contradiction between rigidity and manufacturing simplicity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If offset hangers are designed with adequate force distribution, then building code requirements are met, but structural rigidity may be compromised

Engineering Contradiction:
Improveforce distributionVSAvoidstructural rigidity
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

Ribs are strategically positioned at specific locations on the offset hanger body where force distribution is needed most. The first and second ribs extend from the central retainer portion toward the legs, providing localized reinforcement that enhances force distribution while maintaining overall structural rigidity through targeted rather than universal reinforcement

Inventive Principle:
Principle #3Local quality

3Loss of substance

If material usage is reduced to lower costs, then manufacturing costs decrease, but structural rigidity and force distribution may be insufficient

Engineering Contradiction:
Improvematerial usageVSAvoidstructural rigidity
Core Design Contradiction:
Loss of substanceVSStrength

Solution Approach 1:

The integral structure is divided into functional segments (legs, central retainer, ribs) that each serve specific purposes. This segmentation allows material to be concentrated where structurally necessary while minimizing material in non-critical areas, achieving cost reduction without sacrificing rigidity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Three-dimensional rib structures extend from the central retainer portion, providing structural reinforcement in multiple directions with minimal additional material. This dimensional approach creates efficient load paths that enhance rigidity without requiring proportional increases in material usage

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS8376289B2Offset hanger
Publication Date: 2013.02.19 EATON INTELLIGENT POWER LTD
  • US8376289B2 patent drawing
  • US8376289B2 patent drawing
  • US8376289B2 patent drawing

AI summary

An offset hanger has a central retainer portion, a first leg and a second leg. The central retainer portion defines a segment of a generally cylindrical shape and retains a conduit, pipe, tube or the like.