Drill Bit Depth Collar and Fastener Driver Sleeve Integration
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Solution Overview
Problem
The existing methods for installing fasteners, such as screws, often require multiple steps and tool changes due to uncertainties in pilot hole depth, leading to inefficiencies and excessive wear, especially in high-volume applications like professional tradesmen's work, where pilot holes may not always be necessary or where depth is critical.
Innovation Solution
A drilling apparatus with a drill bit featuring a shank, cutting portion, and a collar with a stop to control depth, along with a sleeve and coupling mechanism for quick engagement and disengagement with a fastener driver, allowing for controlled drilling and driving of fasteners without frequent tool changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple tool changes are performed to install fasteners, then adaptability to different operations is improved, but loss of time and productivity deteriorate
Solution Approach 1:
The patent combines the drill bit and fastener driver into a single integrated assembly where the driver is mounted on the drill bit shank. This merging eliminates the need to separate and switch between drilling and driving tools, allowing both operations to be performed with one tool configuration, thus resolving the contradiction between adaptability and productivity.
Solution Approach 2:
The integrated assembly serves multiple functions: it can drill holes and then immediately drive fasteners without tool changes. The universal design allows the same tool configuration to perform both drilling and fastening operations, improving productivity while maintaining adaptability to different fastening applications.
2Ease of operation
If pilot hole depth is not precisely controlled, then ease of operation is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent incorporates a depth stop feature on the drill bit that is set before drilling begins. This preliminary action of pre-configuring the depth stop ensures that the pilot hole is drilled to the exact required depth automatically, eliminating the need for manual depth measurement while maintaining precise control, thus resolving the contradiction between ease of operation and manufacturing precision.
3Adaptability or versatility
If drill bit is removed and driver is attached separately, then adaptability to different fasteners is improved, but loss of time and device complexity worsen
Solution Approach 1:
The patent merges the driver attachment with the drill bit by mounting the driver directly on the drill bit shank. This integration allows the driver to be permanently positioned relative to the drill bit, eliminating repeated attachment and detachment operations while maintaining the ability to accommodate different fastener types through driver selection, thus resolving the contradiction between adaptability and time loss.
4Ease of repair
If multiple tool changes are performed, then ease of repair and maintenance is improved, but productivity and loss of time deteriorate
Solution Approach 1:
The integrated assembly combines drilling and fastening functions in one unit, reducing the number of separate tools that need to be maintained and repaired. While the structure is more complex, the reduction in tool quantity and frequency of tool changes improves overall installation efficiency, resolving the contradiction between maintenance ease and productivity.
Data Source
AI summary
A drill bit has a shank adapted to be attached to a power tool and a cutting portion adapted to drill a hole in a material. A collar is spaced along the length of the drill bit to set a depth distance that the drill bit is allowed to be inserted into a material being drilled. The drill bit further comprises a first engagement structure. A sleeve comprises a second engagement structure that is releasably engageable with the first engagement structure. The sleeve further comprises a coupling mechanism for connecting the sleeve to a fastener driver.