Tool Attachment Drive Shank Insert for Wear and Shock Damping
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Solution Overview
Problem
Attachments for tools often have gaps that lead to metal-to-metal contact, reducing the life of the components due to wear and tear.
Innovation Solution
A shock absorbing insert is integrated into the drive shank of the tool attachment, featuring a groove with an engagement surface to engage the retention feature and a coupling surface, allowing for a floating connection that reduces wear and enhances durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gaps are provided for assembly float, then assembly ease is improved, but metal-to-metal contact occurs causing component wear and reduced life
Solution Approach 1:
A retention feature is introduced as an intermediary element between the drive shank and the attachment body. This retention feature fits into a groove on the drive shank, mediating the connection and preventing direct metal-to-metal contact between the drive shank and attachment body, thereby eliminating wear while preserving assembly float
Solution Approach 2:
The retention feature acts as a flexible element that can deform slightly to accommodate assembly variations and float, while still maintaining the connection. This flexibility allows the system to tolerate gaps and misalignments without causing damaging metal-to-metal contact
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
The shock absorbing insert minimizes wear and tear, extends the life of the components, and reduces user fatigue by absorbing percussive forces, while maintaining efficient operation.
Implementation Method 1
an insert coupled to the drive shank, the insert positioned in the groove of the drive shank and configured to engage the retention feature
Implementation Method 2
The shock absorbing insert minimizes wear and tear, extends the life of the components, and reduces user fatigue by absorbing percussive forces
Data Source
AI summary
An attachment includes a drive shank that is removably couplable to a tool, the drive shank having a groove in which the retention feature is disposed. An insert is coupled to the drive shank, and the insert is positioned in the groove of the drive shank and configured to engage a retention feature of the attachment.