Segmented Driver Assembly for Fastener Driving Tools
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Solution Overview
Problem
Existing driving tools face challenges in manufacturing due to the difficulty of integrally forming drivers with varying striking part widths, which affects their structural integrity and ease of assembly.
Innovation Solution
A driving tool design featuring a striking member, support member, and engagement member, allowing each component to be formed independently and assembled easily, with the engagement member restricting relative movement between the striking and support members to ensure effective fastener driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the driver is integrally formed by casting, then the structural integrity is improved, but the manufacturing difficulty increases when the striking part has a small width
Solution Approach 1:
The driver is divided into separate components: a striking member with a small-width striking part and a support member with a larger support portion. These components are manufactured independently and then assembled together, allowing each part to be optimized for its specific function without the manufacturing constraints of integral forming.
2Ease of manufacture
If the driver is formed as separate components, then the ease of manufacture is improved, but the device complexity increases
Solution Approach 1:
The striking member and support member are combined into a single integrated driver assembly that functions as one unit during operation. The engagement portion of the support member integrates with the striking member through engagement protrusions and grooves, creating a unified structure that simplifies handling while maintaining manufacturing flexibility.
3Manufacturing precision
If the striking part has a small width, then the fastener driving precision is improved, but the structural strength decreases
Solution Approach 1:
The driver exhibits different width dimensions at different locations: the striking part has a small width matched to the fastener diameter for precise driving, while the support portion has a larger width to provide sufficient structural strength. This local variation in geometry optimizes both precision and strength where needed.
Data Source
AI summary
A driving tool includes a driver configured to linearly move forward along a driving line to thereby strike and drive a fastener into a workpiece. The driver includes a striking member, a support member, and an engagement member engaged with the striking member and the support member and configured to restrict movement of the striking member relative to the support member in a front-rear direction. The support member includes a support surface supporting a portion of the striking member, at least one receiving surface configured to receive a reaction force to the striking member caused by driving of the fastener, and restricting parts spaced apart from each other in the front-rear direction, located at an opposite side of the striking member from the support surface in a crossing direction crossing the support surface, and configured to restrict movement of the striking member in a direction away from the support surface.