3D Telescoping Equipment Curb for Vibration and Seismic Isolation

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Solution Overview

Problem

Conventional curbs for rooftop equipment are unable to efficiently accommodate varying equipment footprints, require multiple sizes or custom manufacturing, and lack vibration isolation, noise reduction, seismic resistance, and wind load handling.

Innovation Solution

A modular equipment curb with telescoping panels forming adjustable frames that can be customized in length and width, incorporating a resilient mounting system for vibration isolation and seismic resistance, and adaptable to different roof slopes, using seismic brackets for enhanced stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional curbs are used to support equipment, then equipment weight can be supported, but vibration isolation, noise reduction, and seismic resistance are insufficient

Engineering Contradiction:
Improvevibration isolation and seismic resistanceVSAvoidmounting system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The mounting system is divided into separate functional components: adjustable frame structure for positioning, resilient mounting elements for vibration isolation, and seismic brackets for earthquake resistance. This segmentation allows each component to be optimized independently while working together to provide comprehensive protection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Resilient mounting elements such as rubber pads or spring mechanisms are pre-installed between the equipment and the curb structure to cushion against vibrations and shocks before they can damage the equipment or transmit noise to the building structure.

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

2Adaptability or versatility

If multiple differently sized curbs are inventoried to match equipment footprints, then equipment can be properly accommodated, but inventory costs and complexity increase

Engineering Contradiction:
Improveequipment footprint accommodationVSAvoidnumber of curb sizes to inventory
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The curb structure is divided into modular segments that can be configured in different arrangements. Standardized modules with adjustable dimensions allow a single inventory item to serve multiple equipment footprint requirements through reconfiguration rather than requiring multiple specialized curb sizes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The curb incorporates adjustable components such as telescoping sides or reconfigurable panels that allow the physical dimensions to be dynamically changed to match different equipment footprints, transforming a static structure into an adaptable one that responds to varying installation requirements.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If custom manufacture of curbs is performed to accommodate specific equipment, then precise fit is achieved, but manufacturing time and cost increase

Engineering Contradiction:
Improvecurb-to-equipment fit precisionVSAvoidcustom manufacturing time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

Standardized curb modules are pre-manufactured with precise dimensions and connection interfaces during regular production cycles. Adjustment mechanisms are pre-assembled, allowing rapid on-site configuration to match specific equipment requirements without requiring custom manufacturing for each installation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses adjustable parameters such as panel lengths, spacing, and configuration angles that can be modified through simple mechanical adjustments rather than custom manufacturing, enabling precise fitting to various equipment dimensions while maintaining standard production processes.

Inventive Principle:
Principle #35Parameter changes

4Productivity

If standardized curb construction is used, then manufacturing efficiency improves, but adaptability to various equipment footprints decreases

Engineering Contradiction:
Improvecurb manufacturing efficiencyVSAvoidequipment footprint accommodation
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The standardized curb modules are designed with universal connection interfaces and adjustable features that enable a single standard component to perform multiple functions and accommodate various equipment configurations, achieving both manufacturing efficiency and installation versatility simultaneously.

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

The solution allows for standardized, adaptable, and cost-effective curb construction that supports equipment with precise adjustability, noise attenuation, and resistance to seismic forces and wind loads, accommodating various equipment sizes and roof configurations.

Implementation Method 1

The upper frame may be mounted to the lower frame by a mounting system that provides a solid but resilient connection having spring members to provide isolation of the equipment mounted upon the upper frame from the structure to which the lower frame is mounted.

Methodology Applied
Scientific EffectVibration isolation: Damping

Data Source

PatentUS9228692B2Three-dimensional telescoping adjustable equipment mounting fixture
Publication Date: 2016.01.05 WILSON JR JOHN
  • US9228692B2 patent drawing
  • US9228692B2 patent drawing
  • US9228692B2 patent drawing

AI summary

An adjustable equipment curb has a lower frame having opposed first and second length-adjustable sides and opposed length-adjustable first and second ends interconnectable to form a rigid frame and height-adjustable mounting legs. The lower frame may be used alone, or may support an upper frame through a shock mount system having mounts affixed to both the upper and lower frames and shock absorbing springs between the mounts. The frames may be formed of interconnecting channel members, and the lower frame channel members may be of a perforated construction that, in conjunction with applied sheathing, provides acoustic damping. Seismic brackets may be affixed to the frame to provide increased resistance to seismic shock.