Conduit Strap Axial Foot Offset for Masonry Attachment
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Solution Overview
Problem
Existing conduit straps often fail to securely attach to surfaces with discrete units like masonry or wood, as they concentrate pressure on grout or mortar lines, leading to reduced holding power and risk of surface damage, especially when fasteners are close together.
Innovation Solution
The conduit strap design features feet displaced axially along the conduit to increase contact area and distribute pressure, with angled feet and a body shape that conforms to the conduit, allowing for secure attachment to both sides of the surface and reducing the risk of surface splitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional two-hole conduit straps are used with feet positioned close together, then the strap can be easily installed, but the holding power is reduced and the risk of surface damage increases
Solution Approach 1:
The patent positions the feet of the conduit strap at different longitudinal locations along the conduit rather than at the same transverse position. This dimensional change in foot placement creates a staggered configuration that distributes fastening forces across different areas of the surface, improving holding power while maintaining ease of installation.
2Device complexity
If conventional conduit straps position feet close together, then the device structure is simple, but the surface may split or be damaged
Solution Approach 1:
The patent introduces a longitudinal offset between the two feet of the strap, changing their spatial arrangement from a close transverse pairing to a staggered configuration along the conduit length. This dimensional adjustment distributes the fastening forces over a larger surface area, reducing the risk of surface splitting while maintaining structural simplicity.
3Ease of operation
If conventional straps anchor feet in grout or mortar lines, then installation is straightforward, but the security of attachment is significantly reduced
Solution Approach 1:
The patent positions the feet at different longitudinal locations along the conduit, which increases the likelihood that both feet will land on solid discrete units (bricks or tiles) rather than on weak grout or mortar lines. This staggered arrangement maintains installation straightforwardness while significantly improving attachment security.
Data Source
AI summary
A conduit fastener for attaching an axially extending conduit of predetermined diameter to a surface. The fastener has an elongated strap with an attachment foot located on opposite ends of said strap. The strap overlies the conduit and the feet are apertured to receive a fastener used to attach the feet to the surface and thus the conduit to the surface. The two feet are displaced axially along the conduit to increase the area of contact between the strap and the conduit, to reduce the risk of the fasteners splitting the surface, and to enhance the ability to locate the strap fasteners so as to avoid mortar joints where the surface is masonry or formed from other discrete offset units. Two straps may be used together for form an open or closed angle bracket or chevron configuration with two or three feet, or used in an X-shape configuration. The X-shape configuration may be integral with cross-bodies and four feet, and Y-shaped bodies may be formed having three feet.