Anchor Bolt Head Part Torque Verification via Breaking Groove
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Solution Overview
Problem
Conventional anchors used for attaching objects to concrete structures, such as ceilings and walls, face issues with secure fixation due to structural separation during earthquakes and difficulty in visually verifying proper placement, leading to potential drops and uneven installation quality, which is time-consuming and hazardous for supervisors to check.
Innovation Solution
An anchor bolt design featuring a cap member and deformable material that allows for visual confirmation of placement by breaking at a predetermined torque, preventing unnecessary projections and ensuring secure attachment, with a cap member that can be colored for easy visibility from a distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional anchors are used for attaching objects to concrete structures, then the attachment function is achieved, but secure fixation cannot be ensured during earthquakes due to structural separation
Solution Approach 1:
The cap member and deformable material are integrated into a single functional unit within the anchor structure. The cap member contains the deformable material and together they form an integrated verification system that combines structural support with placement verification functions.
Solution Approach 2:
The cap member can be colored for easy visibility from a distance, allowing supervisors to visually confirm anchor placement without climbing high structures. This color coding system provides immediate visual feedback about anchor installation status.
2Ease of operation
If conventional anchors are used, then attachment is achieved, but visual verification of proper placement is difficult
Solution Approach 1:
The cap member is designed to be colored for easy visibility from a distance, enabling supervisors to visually detect and verify anchor placement without needing to physically inspect each anchor up close or climb to high locations.
Solution Approach 2:
The deformable material automatically provides visual feedback through the cap member when the anchor is properly installed. The system self-verifies its own placement status through the deformation indication, eliminating the need for complex verification tools or procedures.
3Measurement precision
If supervisors check anchor placement manually by climbing high structures, then verification is possible, but the risk of accidents increases and time is consumed
Solution Approach 1:
By making the cap member visible from a distance through coloring, supervisors can verify anchor placement from ground level without climbing ladders or scaffolding, dramatically reducing both time and safety risks associated with manual inspection.
Solution Approach 2:
The anchor system automatically indicates its own placement status through the deformable material and colored cap member, allowing supervisors to perform quick visual inspections without time-consuming manual verification procedures.
4Manufacturing precision
If a breaking groove is provided at the tip surface, then torque verification is enabled, but projections may occur that require prevention
Solution Approach 1:
The cap member is designed to be removed after the breaking groove breaks and torque verification is complete. This extraction of the cap member eliminates any potential projections or irregularities at the tip surface, leaving a clean, smooth surface.
Solution Approach 2:
The cap member serves as an intermediary element that enables torque verification through the breaking groove mechanism, then is removed to prevent any harmful projections. It mediates between the need for precise torque control and the need for a clean final surface.
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
Facilitates efficient and safe verification of anchor placement without the need for supervisors to climb high structures, reducing the risk of accidents and ensuring consistent, secure attachment to concrete structures.
Implementation Method 1
deformable material that allows for visual confirmation of placement by breaking at a predetermined torque
Implementation Method 2
breaking at a predetermined torque, preventing unnecessary projections
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An anchor bolt (2) comprises: a shaft part (4) with a male screw thread (4b); and a head part (3) connected to the shaft part (4) and having an attachment hole (14) with a closed-end bottom to receive a bolt (60) therein defined at a tip surface (3a) of the head part (3) and a breaking groove (12) provided at an outer side surface of the head part (3). The breaking groove (12) is formed at an outer surface of a portion in which the attachment hole (14) is defined. A torque equal to or greater than a fixed value exerted on a tip portion between the tip surface (3a) and the breaking groove (12) of the head part (3) causes the breaking groove (12) to be broken, thereby causing the tip portion between the tip surface (3a) and the breaking groove (12) of the head part (3) to be removed.