Reversible Anchor Pin Bushing Driver Tool
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Solution Overview
Problem
Existing tools for removing and installing truck and trailer brake anchor pins and bushings are inefficient, requiring separate drivers for installation and removal, which can lead to misplacement, breakage, and increased costs due to cumbersome threading and vibrations from pneumatically driven air hammers.
Innovation Solution
A tool comprising an elongated drive shaft and a reversible adaptor with conical counterbores for quick attachment to a pneumatically driven air hammer, allowing for efficient removal and installation of anchor pins and bushings using a single tool with a friction fitting mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate drivers are used for installing and removing anchor pins, then specific functions for each operation are achieved, but tool complexity increases and risk of misplacement/breakage increases
Solution Approach 1:
The patent combines the installation driver and removal driver into a single integrated tool with a reversible adaptor. The adaptor can be flipped to present different functional ends (installation end with bearing surface, removal end with notched configuration) to the anchor pin, eliminating the need for separate tools while maintaining specialized functionality for each operation.
Solution Approach 2:
The reversible adaptor serves multiple functions: it can be configured for installing anchor pins (with bearing surface facing the pin), removing anchor pins (with notched end facing the pin), and adapting to different anchor pin sizes. This multi-functionality reduces the number of separate tools needed in the toolkit.
2Reliability
If threaded connection is used to attach driver to air hammer, then secure attachment is achieved, but vibrations cause loosening and threading/unthreading is cumbersome
Solution Approach 1:
The tool is segmented into distinct components: a drive shaft and a reversible adaptor. The adaptor attaches to the drive shaft via a friction fitting mechanism that allows quick connection and disconnection without threading. This segmentation enables rapid tool changes while maintaining secure attachment during operation.
Solution Approach 2:
The friction fitting mechanism provides a dynamic attachment system that allows for quick insertion and removal of the adaptor from the drive shaft. The friction fit maintains sufficient holding force during operation while enabling rapid tool changes, adapting to the varying needs of installation and removal operations.
3Adaptability or versatility
If C-frame tool with anvil is used, then anchor pin removal is achieved, but additional adaptors are needed for bushing removal increasing cost and complexity
Solution Approach 1:
The reversible adaptor is designed to handle multiple operations: removing anchor pins, removing bushings, and installing anchor pins. By flipping the adaptor, different functional ends are presented to the workpiece, eliminating the need for separate adaptors for different operations and reducing overall tool complexity.
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
Enables efficient and timely removal and installation of anchor pins and bushings, reducing the risk of tool breakage and misplacement, while providing a cost-effective solution for servicing truck and trailer brake systems.
Implementation Method 1
The second end of the elongated drive shaft include a friction fitting adapted to quickly connect and disconnect the adaptor from the drive shaft.
Data Source
AI summary
A tool for use in combination with an air hammer for removing and/or installing an anchor pin bushing. The tool includes a drive shaft and an adaptor that is removably attachable to the drive shaft. A first end of the drive shaft is configured for removable attachment to an air hammer. A second end of the drive shaft is configured for removable attachment with the adaptor. The adaptor includes a flanged end and a notched end. Both the flanged end and notched end include a counterbore sized and configured to fit over an anchor pin. The notched end of the adaptor is used for removing an anchor pin bushing and the flanged end of the adaptor is used to install an anchor pin bushing.