Adjustable Serpentine Z-Hanger for Gap-Free Ceiling Insulation

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Solution Overview

Problem

Conventional insulation hangers fail to provide stable support, leading to sagging, gaps, and interference with ceiling structures, and are difficult to install, especially with varying rafter spacings and materials.

Innovation Solution

A serpentine Z-shaped hanger with u-shaped openings and a perpendicular rod, allowing adjustable expansion and compression to fit various insulation thicknesses, and a coupler to prevent rotation, ensuring full ceiling coverage and secure installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional hangers with pointed ends are used to support insulation, then installation is possible, but the hangers become difficult to install and may become useless when the pointed ends become dull or break off

Engineering Contradiction:

Improveease of installationVSAvoidreliability of hanger function

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The hanger is divided into two distinct functional components: a U-shaped member for anchoring to rafters and a support member for supporting insulation. This segmentation allows each component to be optimized independently - the U-shaped member provides reliable anchoring without pointed ends that can break, while the support member provides stable insulation support.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of using pointed ends that are driven into rafters (conventional approach), the invention inverts the approach by using a U-shaped member that clamps onto the rafter from the inside face. This inversion eliminates the reliability issue of pointed ends becoming dull or breaking while maintaining secure attachment.

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If linear rod-like hangers are used to support insulation, then installation is simplified, but the insulation sags and air gaps open up degrading insulation performance

Engineering Contradiction:

Improveease of installationVSAvoidinsulation performance

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The support member is formed with a curved or arcuate configuration rather than a straight linear shape. This curvature allows the support member to conform to the natural sag of insulation while maintaining contact along its length, preventing air gaps and maintaining insulation performance. The curved shape distributes support forces more effectively across the insulation batt.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The invention transitions from linear one-dimensional support to two-dimensional planar support by using a curved support member that spans across the insulation batt. This dimensional change provides broader contact area and prevents the insulation from sagging in the vertical dimension while maintaining ease of installation.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If adjustable hangers are used to accommodate varying rafter spacings, then versatility is improved, but the hangers require complex mechanisms that increase device complexity

Engineering Contradiction:

Improveadaptability to varying rafter spacingsVSAvoidcomplexity of hanger structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connection between the U-shaped member and support member allows for relative movement and adjustment. The support member can be positioned at different locations along the U-shaped member's arms, and the overall assembly can be expanded or compressed to accommodate different rafter spacings. This dynamic adjustability provides versatility without requiring complex mechanical mechanisms.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The hanger accommodates varying rafter spacings by changing geometric parameters - specifically the distance between the U-shaped member and support member, and the orientation of the support member. These parameter changes allow the hanger to adapt to different spacing conditions while maintaining a simple overall structure without complex adjustment mechanisms.

Inventive Principle:

Principle #35Parameter changes

4Reliability

If multiple hangers are hammered into each stud to support insulation, then support stability is improved, but installation time increases significantly

Engineering Contradiction:

Improvestability of insulation supportVSAvoidinstallation speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The U-shaped member and support member are combined into a single integrated hanger assembly that performs both anchoring and insulation support functions simultaneously. This merging eliminates the need for multiple separate hangers or multiple nailing steps, providing stable support while significantly reducing installation time and improving productivity.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12416158B2Support structures for insulation and other materials

Publication Date: 2025.09.16 SPEED ROD

AI summary

A holder for supporting a material such as insulation. The holder includes a support member having a first and a second wire element for supporting the material, with each of the first and second wire elements having a first end and a second end adapted to engage two beams. The first and second wire elements also are coupled together by a serpentine section defining a planar holding surface. The second ends include U-shaped clamping members.