Non-Crimping Cable Pulling Head With Jaw Retention Assembly
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Solution Overview
Problem
Existing cable pulling devices often struggle with securely retaining cables during installation, leading to potential detachment and disruption during conduit runs, especially under normal pulling conditions.
Innovation Solution
A non-crimping cable pulling device comprising a cap, body, sleeve, and jaw assembly with grip ring legs that engage spring grooves on jaws, providing resistance to cable extraction while allowing easy insertion, ensuring the cable remains attached to the pulling head assembly during normal pulling operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing cable pulling devices are used, then cable installation can be performed, but the cable may detach or separate during pulling operations
Solution Approach 1:
The device inverts the traditional cable retention approach by allowing easy insertion through a wide opening while preventing removal through the same opening. The jaw assembly with gripping surfaces is configured to accept cables readily but mechanically blocks cable extraction, solving both the reliability and ease of operation requirements simultaneously.
Solution Approach 2:
The pulling head is divided into functional segments: a body portion with an opening, a jaw assembly with multiple jaws, and gripping surfaces. This segmentation allows each component to perform its specific function - the opening facilitates easy cable insertion while the jaw assembly with gripping surfaces ensures secure retention and prevents detachment during pulling operations.
2Reliability
If traditional cable pulling devices are used, then cable installation can proceed, but cable damage or separation may occur under pulling conditions
Solution Approach 1:
The jaw assembly serves multiple functions within a single structure: it guides the cable during insertion, secures the cable through gripping surfaces, and prevents cable removal. This multi-functionality achieves reliable cable attachment without requiring multiple separate components, thereby maintaining structural simplicity while ensuring cable security during pulling operations.
3Reliability
If cable retention mechanisms are strengthened, then cable detachment is prevented, but cable insertion becomes difficult
Solution Approach 1:
The device inverts the traditional cable retention approach by allowing easy insertion through a wide opening while preventing removal through the same opening. The jaw assembly with gripping surfaces is configured to accept cables readily but mechanically blocks cable extraction, solving both the reliability and ease of operation requirements simultaneously.
Data Source
AI summary
A non-crimping cable pulling device may be provided. The non-crimping cable pulling device may be a cap and a body attached to the cap. The body may be an interior that may have a sleeve section and a jaw assembly section. A sleeve may be disposed in the sleeve section of the body and a jaw assembly may be disposed in the jaw assembly section of the body. The jaw assembly may be a plurality of jaws and a grip ring. The plurality of jaws may each have an exterior side and an interior side. Each of the plurality of jaws may have a spring groove on its exterior side. The grip ring may have a plurality of grip ring legs. Ones of the plurality of grip ring legs may respectively engage the spring groove on each of the plurality of jaws.