Ergonomic Safety Handle for Pipe Tongs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional safety handles for pipe tongs in the oil and gas industry fail to adequately protect operators' hands from impact injuries, particularly the thumb and knuckles, due to design flaws that interfere with natural gripping positions and increase the risk of side and top impacts during operation.
Innovation Solution
A safety handle apparatus with ergonomic design, featuring cylindrical hand grip members with radially protruding flanges and thumb protection recesses, allowing for natural gripping while providing protection for fingers, knuckles, and thumbs, and securely attaching to the tong jaw to prevent interference and injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional safety handles are designed with flanges to protect knuckles, then hand protection is improved, but the handle interferes with natural wrist bending and gripping positions
Solution Approach 1:
The patent introduces a thumb protection recess that extends in the vertical dimension above the handle, creating a three-dimensional protective structure. This allows the safety handle to protect the thumb from top impacts while maintaining the lateral profile needed for natural gripping, effectively adding a protective dimension without interfering with wrist bending.
Solution Approach 2:
The safety handle features localized protective elements: a thumb protection recess positioned specifically for thumb reception and flanges positioned laterally for knuckle protection. This localized approach ensures protection is provided exactly where needed without adding bulk that would interfere with natural gripping positions.
2Object-affected harmful factors
If conventional safety handles are designed with large flanges to protect from side impact, then protection is improved, but the handle thickness becomes too great for comfortable grasping
Solution Approach 1:
The safety handle is segmented into distinct functional zones: a grip portion for hand contact, lateral flanges for knuckle protection, and a vertical thumb protection recess. This segmentation allows each element to be optimized independently—the flanges provide protection without excessive thickness while the grip portion maintains comfortable dimensions for grasping.
3Object-affected harmful factors
If conventional safety handles increase the vertical dimension to provide protection, then protection is improved, but the handles of paired tongs interfere with each other during movement
Solution Approach 1:
The thumb protection recess is designed as a dynamic feature that accommodates the natural movement of the thumb during tong operation. The recessed structure allows the thumb to move vertically within the protected zone without causing the safety handles of paired tongs to interfere with each other, providing protection while maintaining operational flexibility.
Data Source
AI summary
A safety handle for use with conventional pipe tongs. The safety handle has a hand grip, as well as upper and lower flange members. The flange members beneficially define a recess for receiving (and protecting) a user's thumb. At least one attachment cavity is provided for receiving, and securely attaching the safety handle to, a tong jaw member.