Adapter Board Pry Slots for Damage-Free Tool Bit Removal
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Solution Overview
Problem
Existing blade assemblies face challenges in easily removing tool bits due to deformation and packing, leading to increased costs from frequent replacements and potential damage during removal.
Innovation Solution
The introduction of an adapter board with pry points and arcuate tool bits that facilitate easier removal by reducing deformation and packing, allowing for efficient detachment without damaging the tool bits or adapter board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tool bits are securely attached to the adapter board using a press fit or catch point, then the tool bits remain firmly secured during operation, but removal becomes difficult and may cause damage to the tool bit or adapter board
Solution Approach 1:
The adapter board is divided into distinct functional zones: a secure attachment zone with catch points for reliable mounting, and a separate pry point zone for controlled removal. This segmentation allows the board to provide secure attachment during operation while enabling easy removal through the dedicated pry points without damaging either component.
Solution Approach 2:
The pry points act as intermediary elements between the tool bit and the adapter board. These dedicated removal points mediate the separation process, allowing the tool bit to be removed through controlled prying actions rather than direct force application, thereby facilitating easy removal while maintaining secure attachment during operation.
2Power
If the adapter board and tool bit are subjected to significant loads during operation, then the tool bit performs its cutting function effectively, but deformation creates a press fit that makes removal difficult
Solution Approach 1:
The adapter board is segmented into load-bearing regions that undergo deformation during cutting operations and dedicated pry points that remain structurally intact for removal. This segmentation ensures that the deformation caused by significant loads does not affect the removal process, as the pry points provide alternative access points that are not compromised by operational deformation.
Solution Approach 2:
The pry points are pre-positioned on the adapter board before operation, providing predetermined removal paths that are independent of the deformation occurring during cutting. This preliminary arrangement of removal points ensures that even after significant loads cause deformation, the removal process can proceed easily through the unaffected pry points.
3Reliability
If material packs into the bit shank hole during operation, then the tool bit remains securely held, but the bit becomes seized and difficult to remove
Solution Approach 1:
The pry points extract the tool bit from the adapter board through controlled prying actions that bypass the packed material in the bit shank hole. By providing alternative removal paths through the pry points, the system can remove the tool bit without having to work through the packed material, thereby maintaining secure holding during operation while enabling easy removal afterward.
Solution Approach 2:
The pry points serve as intermediary removal paths that bypass the packed material in the bit shank hole. Instead of requiring direct access through the packed material, the pry points mediate the removal process by providing access points that are free from packing, allowing the tool bit to be removed easily despite material accumulation in the shank hole.
4Ease of operation
If the tool bit is struck with a hammer to remove it, then the tool bit can be detached, but the bit mushrooms within the bit shank hole making removal harder
Solution Approach 1:
The pry points provide a controlled extraction path for the tool bit that eliminates the need for hammer strikes. By using the pry points to lever the bit out through controlled prying actions, the system extracts the tool bit without causing it to mushroom within the shank hole, thereby simplifying the removal process and avoiding the complexity of subsequent de-mushrooming operations.
Solution Approach 2:
The design converts the potential harm of difficult removal into a benefit by incorporating pry points that enable controlled, damage-free removal. Instead of requiring forceful hammer strikes that cause mushrooming, the pry points allow gentle, controlled extraction, transforming a potentially harmful removal process into a beneficial, damage-free operation.
Data Source
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AI summary
An adapter board (12000) for use with a blade assembly (13000) includes a lower tool bit attachment portion (12002), terminating in a lower adapter board free end (12004), the lower adapter board free end (12004) defining a bottom surface (12006) defining at least one shank receiving bore (12008) and at least one pry slot (12010). The at least one pry slot (12010) is disposed adjacent the at least one shank receiving bore (12008).