Anchor Rod Holder With Breakaway Flange for Fast Form Removal
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Solution Overview
Problem
Existing anchor rod holders for concrete applications are inefficient in allowing easy removal of screws or nails after concrete curing, leading to time-consuming manual removal processes.
Innovation Solution
The holder design includes a weakened circumferential flange that breaks easily, allowing screws or nails to remain attached to the form board during removal, and features openings for air bubble escape and concrete flow, facilitating efficient assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If screws or nails are used to attach the holder to the form board, then secure attachment during concrete pouring is achieved, but time-consuming manual removal is required after curing
Solution Approach 1:
The holder is divided into a main body and a separate removable flange portion. The flange is segmented from the main body through a weakened connection that allows it to be easily separated after concrete curing, enabling automatic detachment without manual removal of fasteners
Solution Approach 2:
The flange is pre-attached to the holder body during manufacturing with a weakened connection designed to fail at a specific point. This preliminary configuration ensures that during concrete pouring the flange provides secure attachment, but after curing it automatically detaches, eliminating the need for manual removal
2Strength
If the holder structure is solid and dense, then structural strength is maintained, but concrete flow and air bubble escape are restricted
Solution Approach 1:
The holder incorporates openings and void spaces within its structure that allow concrete to flow freely through the holder during pouring and enable air bubbles to escape. These porous features are strategically positioned to maintain structural integrity while facilitating proper concrete placement and degassing
Solution Approach 2:
The holder structure is segmented with multiple openings distributed throughout the body. These segmented voids create flow paths for concrete and escape routes for air bubbles, while the remaining material maintains sufficient structural strength to support the holder's function
Data Source
AI summary
A holder for supporting a threaded rod for being embedded in concrete, comprising a central portion including a first opening for receiving an end portion of a threaded rod; a ring portion; arm portions connecting the central portion to the ring portion, the arm portions including respective base portions; leg portions attached to the ring portion; and the central portion extending above and below the base portions.