Adjustable Lineman Safety Belt With Independent Strap D Rings
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Solution Overview
Problem
Existing lineman belts lack adjustable features that accommodate fluctuations in weight and bulk due to seasonal clothing and weight changes over time, leading to uneven weight distribution and safety risks.
Innovation Solution
An adjustable lineman safety belt with independently adjustable primary and auxiliary straps, each secured to D rings, allowing for customizable length adjustments to maintain equidistant D ring positioning and secure weight distribution, featuring buckles for length adjustment and safety straps for added security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed adjustment holes are used in lineman belts, then the belt structure is simple, but the adaptability to weight changes and seasonal clothing is poor
Solution Approach 1:
The patent applies the dynamics principle by replacing fixed adjustment holes with continuously adjustable straps that can be modified on-demand. The straps include movable portions that can be repositioned along the belt body, allowing the belt circumference to dynamically adapt to the user's changing needs due to weight fluctuations or seasonal clothing variations.
2Length of moving object
If one belt is slidably connected to D rings for adjustment, then the belt can be adjusted in length, but the D rings drift from center position as the belt lengthens
Solution Approach 1:
The patent applies segmentation by dividing the belt into distinct functional components: the belt body with D rings remains fixed and maintains precise positioning, while separate adjustable straps are connected to the D rings. This segmentation allows the straps to be lengthened or shortened without affecting the position of the D rings relative to the belt body, thereby maintaining manufacturing precision while achieving length adjustability.
3Adaptability or versatility
If adjustable straps are used, then the belt can accommodate weight changes, but the weight distribution becomes uneven when D rings drift from center
Solution Approach 1:
The patent maintains weight distribution stability by keeping the D rings fixed to the belt body at predetermined centered positions, while allowing the adjustable straps to dynamically change length. This ensures that regardless of strap length adjustments, the D rings remain equidistant from the midline, maintaining balanced weight distribution and preventing instability in the belt's load-bearing composition.
4Adaptability or versatility
If multiple belt sizes are stocked to accommodate different needs, then all user requirements are met, but inventory complexity and costs increase
Solution Approach 1:
The patent applies universality by designing a single belt model that incorporates adjustable straps, allowing one belt to serve multiple sizing requirements. The adjustable straps enable the same belt body to accommodate a range of circumferences, eliminating the need for retailers to stock multiple belt size variants while still meeting diverse user needs.
Data Source
AI summary
An adjustable lineman safety belt having a body secured to a user with a belt tongue. A primary strap and auxiliary strap, each separately and independently adjustable, extend along the body spaced apart from one another and secured at each terminal end to a different D ring. The belt tongue shares D rings with the primary strap. Each strap includes an adjustment member permitting selective adjustment of the strap length, such as by sliding. Strap length adjustment similarly varies the distance between corresponding D rings, maintaining the weight distribution and balance of the overall device. Safety straps connect the auxiliary strap to the body while also permitting adjustment of the length. Drop straps connect the belt tongue to the body and safety strap for added safety in case of a fall. Covers also protect each of the adjustable members to prevent from accidental adjustment while the belt in is use.