Pliers Actuation Assembly With Vertical-Insert Locking Components
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Solution Overview
Problem
Existing pliers actuation assemblies are complex, requiring numerous components and intricate assembly processes, making them difficult to assemble and disassemble, especially when automation is involved.
Innovation Solution
A simplified pliers actuation assembly design featuring a pawl, spring, and pull tab with integral extensions and shoulders, allowing for easy manual or partially automated assembly by aligning these components vertically into receptacles in the hand lever plates, reducing the need for delicate threading and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional pliers actuation assemblies are designed with separate components requiring threading and delicate assembly, then the assembly provides reliable connection, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent combines the pawl, spring, and pull tab into a single integrated component with integral extensions. This merging eliminates the need for separate threading operations and delicate assembly steps, reducing assembly complexity while maintaining the reliable connection through the unified structure's inherent stability
Solution Approach 2:
The integrated component serves multiple functions simultaneously: the pawl provides locking action, the spring provides biasing force, and the pull tab enables actuation. The integral extensions provide both structural connection and alignment features. This multi-functionality in a single component reduces assembly steps while ensuring reliable operation
2Reliability
If traditional assembly methods with multiple separate components are used, then the connection can be made robust, but the disassembly and reassembly processes become intricate and error-prone
Solution Approach 1:
By merging the pawl, spring, and pull tab into one integrated component, the patent enables simple removal of the entire assembly as a single unit. This eliminates intricate disassembly procedures while maintaining robust connection through the integrated design's inherent structural integrity
Solution Approach 2:
The integrated component is extracted as a complete assembly unit from the pliers structure. This allows the entire actuation mechanism to be removed and reinstalled as one piece, dramatically simplifying maintenance and assembly operations while maintaining connection robustness through the unified design
3Reliability
If conventional pliers actuation assemblies with multiple components are employed, then the mechanism can achieve proper function, but automation of the assembly process becomes difficult
Solution Approach 1:
The patent merges multiple components into a single integrated part that can be handled and positioned by automated assembly equipment. This unified structure eliminates the need for complex multi-step automated procedures involving separate manipulation of pawl, spring, and pull tab, enabling straightforward automation while maintaining full mechanism functionality
Solution Approach 2:
The integrated component is designed as a distinct module that can be separately manufactured and then installed as a complete unit. This segmentation allows automated systems to handle the component as a single entity, simplifying the automation process while ensuring proper functionality through the integrated design
4Manufacturing precision
If traditional assembly methods requiring precise threading and alignment are used, then the connection achieves proper fit, but the assembly time and skill requirement increase
Solution Approach 1:
By combining the pawl, spring, and pull tab into one integrated component with built-in alignment features, the patent eliminates time-consuming threading and precise alignment operations. The integrated design maintains proper fit through its inherent structural geometry, significantly reducing assembly time and skill requirements
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 new assembly method significantly reduces the complexity and effort required for assembling and disassembling pliers actuation assemblies, ensuring a robust and reliable connection while maintaining pivoting freedom, and enabling at least partially automated assembly.
Implementation Method 1
The positive locking mechanism features a pawl rotatably mounted on the hand levers. The pawl is actuated by a spring, which is connected to a corresponding hand lever by a spring base.
Data Source
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AI summary
The invention relates to a pliers actuation assembly (1), pliers, and a method for assembling a pliers actuation assembly (1). According to the invention, a pawl (85) has extensions (89), a spring (86) has extensions (92), and/or pull tabs (16, 17) have extensions (14, 15) which engage in a direction vertical to the pivot plane of hand levers (2, 3) in receptacles (90, 93, 12, 13) of hand lever plates (64, 65, 66, 67). The design according to the invention simplifies the assembly of the pliers actuation assembly (1), and also enables at least semi-automated assembly.