Pliers Control Assembly with Integrated Positioning Member
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Solution Overview
Problem
Conventional pliers are complex in structure, difficult to assemble, and inconvenient to operate, with a short service life due to numerous components.
Innovation Solution
A pliers design featuring a first and second member with a control assembly including a positioning member and operation member, where the positioning member is movably disposed through a pivot hole and slot, with engaging teeth that disengage to allow adjustable jaw span, facilitated by an elastic member for stable engagement and easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional pliers use multiple components including notches, springs, and elastic members to fix jaw span, then the jaw span adjustment function is achieved, but the device complexity increases and assembly becomes difficult
Solution Approach 1:
The patent combines the positioning member and operation member into a single integrated control assembly that works together with the guiding groove and tooth row structure. The positioning member with engaging teeth directly interfaces with the tooth row on the guiding groove, eliminating the need for separate spring mechanisms and elastic members used in conventional pliers. This merging of components achieves jaw span adjustment while reducing overall structural complexity.
2Adaptability or versatility
If conventional pliers include numerous components for jaw span fixation, then the adjustment function is achieved, but the ease of operation deteriorates
Solution Approach 1:
The positioning member is designed to automatically engage with the tooth row at specific positions along the guiding groove as the operation member moves. The engaging teeth on the positioning member naturally lock into the tooth row structure without requiring additional springs or elastic members to force engagement. This self-service mechanism allows the user to simply move the operation member to adjust jaw span, and the system automatically maintains the selected position, greatly improving ease of operation.
3Adaptability or versatility
If conventional pliers use multiple components and complex structure, then jaw span fixation is achieved, but the service life becomes short
Solution Approach 1:
The patent removes the spring component and elastic member from the conventional pliers design, retaining only the essential positioning mechanism. The positioning member with engaging teeth directly interfaces with the tooth row on the guiding groove, creating a simpler system with fewer moving parts that can wear out or fail. By extracting unnecessary components while maintaining the core jaw span fixation function, the service life of the pliers is extended.
Data Source
AI summary
A pliers is provided, including a first member, a second member and a control assembly. The first member has a first grip portion, a first body portion and a first jaw. The first body portion has an engaging face, a slot which is disposed on the engaging face and at least one tooth row which is arranged along the slot. The second member has a second grip portion, a second body portion and a second jaw. A pivot hole is disposed in the second body portion. The control assembly has a positioning member which is movably disposed through the pivot hole and within the slot and an operation member which is rotatably connected with the second body portion. At least one position tooth is disposed on the positioning member. The positioning member is movable with the operation member.