Joint-Disconnecting Tool External Jaw Alignment
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Solution Overview
Problem
Existing joint-disconnecting tools face challenges in precision and durability due to difficulties in aligning contact portions with elastic barbs, especially in confined spaces like engine compartments, and wear issues from internal and external rubbing.
Innovation Solution
A joint-disconnecting tool featuring a clamp with visible branches and jaws, and a controller with handles, wire, sheath, and spring, allowing precise alignment and contact with elastic barbs without wear, as the jaws remain external and the spring mechanism ensures durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the jaws are moved deeper into the case to bring contact portions into contact with elastic barbs, then the disconnection function is achieved, but the alignment precision deteriorates because it becomes difficult to precisely bring contact portions into contact with elastic barbs
Solution Approach 1:
The patent transitions from a linear movement approach (moving jaws deeper into the case) to a rotational approach (pivoting branches about pins). This dimensional change allows the contact portions to be precisely aligned with elastic barbs through angular adjustment rather than deep insertion, solving both the reliability of disconnection and the precision of alignment simultaneously.
Solution Approach 2:
The patent introduces pins as intermediary pivot points between the branches and the case. These pins serve as fixed rotation centers that enable precise control of the contact portions' positions, allowing accurate alignment with elastic barbs without requiring the jaws to be moved deep into the case.
2Reliability
If the jaws are moved deeper into the case to achieve disconnection, then the joint can be disconnected, but the visibility deteriorates when the joint and jaws are not visible such as in an engine compartment
Solution Approach 1:
The patent extracts the functional elements (branches with contact portions) from the enclosed case structure and positions them externally on the tool body. This allows the operator to visually access and precisely align the contact portions with elastic barbs even in confined spaces like engine compartments, while the case remains as a compact housing for the mechanism.
3Reliability
If the jaws are moved deeper into the case to press elastic barbs, then the disconnection action is achieved, but the wear increases as external faces of jaws rub against internal faces of the case
Solution Approach 1:
The patent extracts the jaws from the case interior and positions them externally on the branches. This eliminates the rubbing contact between jaw external faces and case internal faces, preventing wear on both components while maintaining the disconnection function through the pivot-based pressing mechanism.
Solution Approach 2:
Instead of moving jaws into the case (inward movement), the patent inverts the arrangement by placing jaws externally on branches that pivot about pins within the case. This inversion eliminates the harmful rubbing contact while achieving the same disconnection effect through rotational motion.
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 tool enables precise disconnection of joints with reduced wear, improving usability and durability by maintaining external jaw alignment and preventing rubbing against the case.
Implementation Method 1
The spring tends to push the linking elements from an internal portion of the case
Implementation Method 2
The pin pivotally connects the levers to the case. The pin is not movable relative to the case
Implementation Method 3
The wire includes an end connected to one of the handles and another end connected to another end of each of the linking elements
Data Source
AI summary
A joint-disconnecting tool includes a clamp and a controller. The clamp includes a case, two branches, a pin and two linking elements. Each of the branches includes a lever extending in the case and a jaw extending out of the case. The pin connects the levers to the case. Each of the linking elements includes an end pivotally connected to one of the levers in the case. The controller includes two handles, a wire, a sheath and a spring. The handles are pivotally connected to each other. The wire includes an end connected to one of the handles and another end connected to another end of each of the linking elements. The sheath wraps the wire except for the ends. The sheath includes an end abutted against another one of the handles and another end abutted against the case. The spring tends to push the linking elements from the case.