Pivotable Stapler Driver Support for Uniform Leg Forces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing staplers experience driver inclination due to bending or deformation, leading to uneven forces applied to staple legs, which can cause buckling during the stapling process.
Innovation Solution
A stapler design that pivotably supports the driver to maintain alignment with the staple's axial direction, ensuring uniform forces are applied to both staple legs, preventing buckling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the driver is supported by a fixed drive shaft, then the structure is simple, but the driver inclines when the drive shaft bends, causing uneven force application to staple legs
Solution Approach 1:
The support portion is designed to pivotably support the driver, allowing the driver to rotate along the axial direction of the crown. This dynamic adjustment mechanism enables the driver to maintain proper alignment with the staple even when the drive shaft inclines due to bending, thereby preventing uneven force application to the staple legs while keeping the overall structure relatively simple.
2Manufacturing precision
If the driver is rigidly fixed to prevent inclination, then alignment precision is improved, but the device complexity increases
Solution Approach 1:
Instead of using a complex rigid fixation system, the invention employs a simple pivotal support mechanism that allows the driver to rotate freely along the crown's axial direction. This dynamic capability provides the alignment precision needed to prevent staple buckling without requiring complex adjustment mechanisms or multiple components.
3Reliability
If uniform forces are applied to both staple legs, then stapling reliability is improved, but the device complexity increases to achieve force uniformity
Solution Approach 1:
The pivotal support portion enables the driver to automatically adjust its orientation to maintain alignment with the staple's axial direction. This simple rotational degree of freedom ensures that forces are applied uniformly to both staple legs during the stapling operation, significantly improving stapling reliability without requiring complex force distribution mechanisms or additional control systems.
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
Prevents staple buckling by ensuring uniform force application to both staple legs, improving stapling consistency and reducing component count and potential deformation issues.
Implementation Method 1
The support portion is configured to pivotably support the driver such that the driver is rotatable along an axial direction of the crown in a state where the staple is set in a driving-in position
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 2C~3
AI summary
A stapler includes: a driver configured to drive a staple into a sheet, the staple having a crown and a pair of legs; a clincher configured to bend the legs driven into and penetrating the sheet; and a support portion configured to support the driver such that the driver is movable in a driving-in direction of the staple, in which the support portion is configured to pivotably support the driver such that the driver is rotatable along an axial direction of the crown in a state where the staple is set in a driving-in position.