Integrated Post-to-Beam Fastener for Drill-and-Bolt Installation
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Solution Overview
Problem
Existing post-to-beam fastening methods are inefficient as they require separate assemblies for drilling and bolt installation, leading to slower and more labor-intensive processes.
Innovation Solution
A fastener with a head and drill tip connected by a threaded shank, allowing for simultaneous drilling and installation by attaching the fastener to a drill and using the drill tip to create a hole, then detaching it to install a nut for connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If separate assemblies are used for drilling and bolt installation, then the process is more flexible and easier to manufacture, but the installation time and labor intensity increase
Solution Approach 1:
The patent combines the drill bit and bolt into a single integrated fastener assembly. The drill bit is positioned at the leading end of the bolt shank, allowing both drilling and fastening operations to be performed in one continuous action. This merging eliminates the need for separate drilling and fastening steps, directly improving installation speed while the integrated design maintains manufacturing feasibility.
Solution Approach 2:
The integrated fastener serves multiple functions simultaneously: the drill bit creates the hole, the shank passes through the workpiece, and the threaded portion enables fastening. This multi-functional design allows a single component to replace what traditionally required separate tools and operations, thereby increasing productivity without proportionally increasing complexity.
2Loss of time
If separate drilling and bolt installation steps are used, then each step can be optimized independently, but the overall installation time increases
Solution Approach 1:
The drill bit is pre-positioned at the leading end of the bolt shank during manufacturing, so that when the fastener is installed, the drilling action occurs automatically before the bolt engages the workpiece. This preliminary positioning of the drilling function eliminates the need for a separate pre-drilling step, reducing installation time while the pre-assembly can be done during standard manufacturing processes.
3Productivity
If a single integrated fastener is used, then installation efficiency improves, but the device becomes more complex to manufacture
Solution Approach 1:
The integrated fastener is designed with distinct functional segments: a drill bit portion at the leading end, a smooth shank portion in the middle, and a threaded portion at the rear. This segmentation allows each portion to be manufactured using appropriate processes and then assembled into the integrated form, making production more manageable despite the combined functionality.
Data Source
AI summary
Various embodiments provide a post-to-beam fastener including a head, a tip, and a threaded shank connected to the head at a first end and the tip and a second end. In various embodiments, threaded shank includes a longitudinal axis extending from the head to the tip, and the tip includes a recess operable to removably receive a drill bit to the fastener.