Standing Seam Clamp Assembly Using Push Pins to Resist Loosening

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Solution Overview

Problem

Conventional clamp assemblies for securing devices to standing seam metal roofs face issues such as loosening due to thermal expansion and vibration, uneven force distribution, and the need for specialized tools, which compromise the roof's integrity and weather-sealing properties.

Innovation Solution

A clamp assembly using non-threaded push pins that translate through smooth openings to secure to various seam profiles, distributing force evenly and resisting loosening, with a design that accommodates different seam configurations and eliminates the need for rotational tightening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If threaded fasteners are used to apply clamping force, then initial attachment strength is achieved, but the fasteners loosen over time due to thermal cycling and vibration

Engineering Contradiction:

Improveattachment strengthVSAvoidfastener tightness

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent removes the threaded fastener component entirely from the system, replacing it with a push-pin mechanism that translates through smooth openings. This extraction eliminates the rotational tightening mechanism that is susceptible to loosening from thermal cycling and vibration, while maintaining secure attachment through the translational pin engagement with the seam profile.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention substitutes the rotational mechanical tightening system with a translational push-pin system. Instead of using threads that convert rotational motion to linear clamping force, the patent uses smooth pins that translate directly through openings to engage the seam, eliminating the mechanical complexity and loosening issues associated with threaded connections.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If point loading from traditional fasteners is applied, then attachment is achieved, but deformation or damage occurs to the seam

Engineering Contradiction:

Improveattachment securityVSAvoidseam deformation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent divides the attachment force into multiple contact points along the seam profile rather than concentrating it at a single point. The clamp body engages the seam at multiple locations, and the push pins distribute the clamping force across several points, preventing localized deformation while maintaining secure attachment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention creates different local qualities in the force distribution - smooth, distributed contact along the seam profile rather than concentrated point loading. The clamp body and push pins are designed to create a force distribution pattern that matches the seam's structural characteristics, providing secure attachment without deformation.

Inventive Principle:

Principle #3Local quality

3Reliability

If conventional clamp designs are used, then attachment functionality is achieved, but specialized tools and precise torque specifications are required

Engineering Contradiction:

Improveattachment functionVSAvoidinstallation complexity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The push-pin mechanism is designed to be self-aligning and self-adjusting as it translates through the smooth openings. The pin automatically finds its engagement position with the seam profile without requiring precise alignment or specialized tools, making the installation process simpler and more forgiving of installation variations.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent removes the need for torque-wrenches, angle indicators, and other specialized installation tools by eliminating the threaded fastener system. The push-pin mechanism requires only simple insertion and translation motions, dramatically reducing the skill level and tool requirements for proper installation.

Inventive Principle:

Principle #2Taking out (Extraction)

4Force

If threaded fasteners are used, then clamping force is applied, but the system lacks versatility to accommodate different seam profiles

Engineering Contradiction:

Improveclamping forceVSAvoidseam profile compatibility

Core Design Contradiction:

ForceVSAdaptability or versatility

Solution Approach 1:

The clamp body and push-pin mechanism are designed with universal compatibility across multiple seam profiles. The smooth openings and translational pin engagement can accommodate variations in seam geometry without requiring different fastener types or configurations, providing both consistent clamping force and broad adaptability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250354649A1Clamp assembly using pins

Publication Date: 2025.11.20 PMC IND INC

AI summary

A clamp assembly includes a mounting body with a slot configured to receive a standing seam used in metal wall panel, cladding, and roof systems and a pin-based fastening system. The fastening system includes push pins that translate through pin openings to engage the standing seam when force is applied by a fastening element through a washer. The translational movement of the pins creates secure clamping force while distributing loads across the seam profile. The clamp assembly may accommodate various standing seam configurations and may resist loosening due to thermal cycling and vibration.