Rotatable Crimping Jaws for Tool-Free Jaw Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing crimping tools with rotatable crimping jaws are limited in their design, making it difficult to replace worn or differently designed crimping jaws without tools and often result in incomplete crimping due to cavities that can lead to conductor ends shifting post-crimping.
Innovation Solution
The crimping tool features pivot pins allowing the crimping jaws to rotate about a geometric axis, enabling detachable and tool-free replacement, and a design with guide surfaces and projections that ensure proper alignment and crimping without collisions, even when closed, ensuring complete filling of the crimped wire end ferrule.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pivot pin is fixed in the carrier member, then the structure is simple and stable, but the crimping jaws cannot be rotated about their own axis in the brought-together state
Solution Approach 1:
The pivot pin is made movable within the carrier member, allowing it to transition between a fixed position (when jaws are apart) and a rotated position (when jaws are together). This dynamic mounting enables the crimping jaws to rotate about their own axis in the brought-to-toe state while maintaining structural simplicity when not in use.
Solution Approach 2:
The pivot pin functionality is segmented into two distinct operational modes: a stable fixed position for normal operation and a rotated position for the brought-to-toe state. This segmentation allows each mode to optimize its specific function without compromising the other.
2Force
If the crimping jaws are brought together firmly, then crimping force is sufficient, but the pivot pin may interfere with the other jaw
Solution Approach 1:
The pivot pin dynamically adjusts its position based on the jaw state. When crimping force is applied and jaws are firmly together, the pivot pin can rotate to a position that avoids interference with the other jaw, maintaining both crimping force and rotation freedom.
Solution Approach 2:
The pivot pin acts as an intermediary element that can change its position to mediate between the need for firm crimping contact and the need for rotation freedom, preventing interference while maintaining both requirements.
3Ease of operation
If the pivot pin is fixed in position, then manufacturing is simple, but the crimping jaws lack mobility for advantageous positioning
Solution Approach 1:
The pivot pin is designed with movable mounting that allows it to shift position dynamically. This provides the crimping jaws with the mobility needed for advantageous positioning while using a relatively simple movable mounting structure that does not significantly complicate manufacturing.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The invention relates to a crimping tool with two jaws (2, 3) which are provided with opposing crimping jaws (6, 7), wherein the crimping jaws (6, 7) are rotatable together about a rotational axis (z) directed in the direction of the crimping jaws (6, 7) being brought together, wherein the crimping jaws (6, 7) are also rotatable about the rotational axis (z) in the brought-to-to-toe state without hindrance from any jaw (2, 3), and each crimping jaw (6, 7) has a pivot pin (43). For advantageous mobility of the crimping jaws, the invention proposes that the pivot pin (43) be mounted in one of the jaws (2, 3) for pivoting, and that the crimping jaw (6, 7) can be rotated about the pivot pin (43) in a mounted position of the crimping jaws (6, 7).