Utility Belt Segmented D-Ring Load Distribution
Solution Overview
Problem
Utility belts with D-rings positioned lower on the body tend to cause users to tip backward or invert, increasing the risk of falling out of the belt during load-bearing activities.
Innovation Solution
A utility belt design with two upper D-rings positioned near the waist and two lower D-rings near the hips, connected by a webbing member that transfers load from the lower portion to the upper portion, creating a seat sling effect and reducing strain on the lower back, thereby preventing tipping or inversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If D-rings are positioned lower on the body, then the belt structure is simplified, but the user stability deteriorates causing tipping backward or inversion
Solution Approach 1:
The utility belt is divided into an upper portion with D-rings positioned at the waist and a lower portion with D-rings positioned at the upper thighs, connected by a connecting member. This segmentation allows the upper D-rings to provide stable support while the lower D-rings distribute load, preventing tipping without requiring a completely simplified structure.
Solution Approach 2:
The connecting member extends vertically between the upper and lower portions, adding a vertical dimension to the load distribution system. This vertical arrangement allows load to be transferred from the lower D-rings through the connecting member to the upper D-rings, creating a stable configuration that prevents backward tipping.
2Device complexity
If D-rings are positioned lower on the body, then the belt design is simplified, but the safety deteriorates increasing fall risk
Solution Approach 1:
The belt system is segmented into upper and lower portions with D-rings at different vertical positions. The upper D-rings at the waist provide secure anchor points for fall protection, while the lower D-rings at the upper thighs distribute positioning loads, together creating a reliable safety system that prevents falls.
Solution Approach 2:
The connecting member acts as an intermediary element that operatively connects the upper and lower portions. It transfers loads between the upper D-rings and lower D-rings, ensuring that positioning forces are properly distributed and that the fall protection system remains reliable during use.
3Device complexity
If load is borne by lower D-rings, then the belt structure is simplified, but the user comfort deteriorates due to lower back strain
Solution Approach 1:
The belt is segmented into upper and lower load-bearing portions. The lower portion with D-rings at the upper thighs bears positioning loads, while the upper portion with D-rings at the waist provides additional support. This segmentation shifts load away from the lower back to the stronger thigh and waist areas, improving comfort without complicating the overall structure.
Solution Approach 2:
The connecting member serves as a mediator that distributes loads between the upper and lower portions. When positioning forces are applied to the lower D-rings, the connecting member transfers a portion of this load to the upper D-rings at the waist, reducing the burden on the lower back and improving user comfort.
Data Source
AI summary
A utility belt comprises an upper portion, a lower portion, a connecting member, and first and second connectors. The connecting member operatively connects the upper and lower portions, and the first and second lower connectors are operatively connected to the connecting member. A connector is positioned proximate each side of the user.