Staple Gun Adjusting-Fixing Assembly Vibration Lock
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Solution Overview
Problem
Conventional staple guns experience vibration during staple ejection, causing the adjusting nut to rotate and altering the staple depth, which compromises the quality of construction.
Innovation Solution
The adjusting-fixing assembly features a sliding frame, an adjusting nut with a noncircular engaging segment, a fixing arm, and an abutting shaft, where the fixing arm engages with the adjusting nut to prevent rotation during staple ejection, using a spring for returning force and positioning elements to secure the adjusting nut in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the adjusting nut is rotatably mounted on the sliding frame to allow depth adjustment, then the ease of operation is improved, but the stability of the adjusting nut position deteriorates due to vibration causing rotation during staple ejection
Solution Approach 1:
The fixing arm is designed to be movable between a fixing position and a releasing position. During normal operation, the fixing arm engages with the adjusting nut to prevent rotation. During adjustment, the fixing arm is moved to the releasing position to allow rotation. This dynamic switching between fixed and movable states resolves the contradiction between stability and ease of operation.
Solution Approach 2:
The fixing arm acts as an intermediary mechanism between the adjusting nut and the vibration forces. It selectively engages or disengages to either prevent rotation or allow adjustment, mediating between the conflicting requirements of stability and operability.
2Reliability
If the fixing arm is added to prevent adjusting nut rotation, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The fixing arm is integrated with the sliding frame through a rotatable connection, combining multiple functions into a single component. The fixing arm simultaneously provides fixation, allows adjustment when needed, and connects to the sliding frame structure, reducing overall complexity despite adding functionality.
Solution Approach 2:
The fixing arm serves multiple functions: it fixes the adjusting nut during operation, allows rotation during adjustment when moved to the releasing position, and connects to the sliding frame structure. This multi-functionality justifies the added component by consolidating several roles into one element.
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
This assembly securely holds the adjusting nut in place, preventing depth changes due to vibration and ensuring consistent staple insertion, thereby enhancing the quality of construction in staple guns.
Implementation Method 1
using a spring for returning force
Data Source
AI summary
An adjusting-fixing assembly for a staple gun has a sliding frame, an adjusting nut, a fixing arm and an abutting shaft. The sliding frame is movably connected to the staple gun and has a connecting board with two positioning recesses. The adjusting nut is rotatably mounted on the sliding frame and has an engaging segment. The engaging segment is formed on the adjusting nut between the threaded end and the connecting board and has multiple engaging faces. The fixing arm is rotatably connected to the sliding frame, engages with the adjusting nut and has a connecting rod, an engaging recess and a positioning element. The engaging recess is formed in an inner side of the fixing nut and engages with two adjacent engaging faces of the engaging segment. The abutting shaft is connected to the adjusting nut and is movably connected to the staple gun.