Fastener Support Tab Layout for Stable Coil-Fed Driving
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Solution Overview
Problem
Existing fastener supports cause instability in the driving posture of fasteners, leading to inaccurate driving when fasteners are inclined with respect to the workpiece, and increasing the outer diameter when coupled and wound in a coil shape, reducing the number of fasteners that can be loaded.
Innovation Solution
A fastener support design featuring a plate-shaped member with first and second tabs that detachably support fasteners, allowing for a reduction in outer diameter when fasteners are coupled and wound in a coil shape, while maintaining stability in the driving posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If fasteners are coupled and wound in a coil shape using existing fastener supports, then the outer diameter increases, but the number of fasteners that can be loaded decreases
Solution Approach 1:
The fastener support is divided into a plate-shaped member and multiple separate tabs (first tab and second tab) that are erected from different portions of the plate. Each tab independently supports a fastener, allowing the tabs to be positioned closer to the plate center without interfering with each other, thus reducing the outer diameter of the coupled fasteners while maintaining proper support for each fastener
Solution Approach 2:
The tabs are erected in the vertical dimension from the plate-shaped member, allowing fasteners to be supported at different heights and positions. This three-dimensional arrangement enables more efficient space utilization when the fasteners are wound in a coil shape, reducing the horizontal footprint and outer diameter of the coupled fastener assembly
2Volume of moving object
If fasteners are coupled using existing fastener supports, then the outer diameter is reduced, but the driving posture stability deteriorates
Solution Approach 1:
Each tab is designed with specific local features including support portions that contact specific portions of the fastener (head or shaft), opening portions that allow passage of fastener portions, and connection portions that attach to the plate-shaped member. These localized functional features ensure proper fastener positioning and stable driving posture while maintaining a compact outer diameter
Solution Approach 2:
The plate-shaped member serves as an intermediary structure that connects multiple tabs together, providing a stable base that maintains the relative positions of the tabs. This intermediary structure ensures that the tabs work together as a unified support system, stabilizing the driving posture of multiple fasteners simultaneously while keeping the overall assembly compact
3Stability of the object's composition
If fasteners are supported by existing fastener support structures, then the driving posture may be unstable, but adding more support structures increases the outer diameter
Solution Approach 1:
Each tab is designed to perform multiple functions: supporting the fastener through support portions, allowing passage of fastener portions through opening portions, and connecting to the plate-shaped member through connection portions. This multi-functionality eliminates the need for additional separate support structures, maintaining driving posture stability while keeping the outer diameter compact
Data Source
AI summary
A fastener support includes: a plate-shaped member having a first portion and a second portion; a first tab erected from the first portion and having a first support portion supporting a first position of a fastener; and a second tab erected from a lower end of the second portion and having a second support portion supporting a second position of the fastener. The first portion has a first opening. The second portion has a second opening which allows at least a part of the fastener to be visually recognized from the rear. The first tab includes a pair of first leg portions erected from the first portion with the first opening interposed therebetween. The second tab includes a pair of second leg portions erected from the lower end of the second portion with the second opening interposed therebetween.