Rotatable Exercise Bar and Hand Grip Kit for Ergonomic Wrist Motion
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Solution Overview
Problem
Current cable pulley exercise machine handles are not ergonomic, requiring users to maintain static wrists, leading to discomfort or injury, and are costly and inefficient to manage due to multiple types and misplaced handles, limiting exercise options.
Innovation Solution
A bar and hand grip kit with an elongate bar and rotatable, pivotable grips that can be adjusted to accommodate natural wrist motion, featuring a connector with eyelets and bores for secure attachment, allowing ±10 degrees of motion and compatibility with various exercises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If solid metal handles with zero to one moving part are used, then the handle structure is simple and strong, but the user's wrists must remain nearly static leading to discomfort or injury
Solution Approach 1:
The patent applies dynamics by transforming the static handle structure into a dynamic one with multiple degrees of freedom. The hand grip assembly includes a grip body that can rotate about a first axis (longitudinal axis) and a grip handle that can rotate about a second axis (transverse axis), allowing the handle to adapt to natural wrist motions during exercise rather than forcing the wrist into fixed positions.
2Adaptability or versatility
If multiple types of handles/bars are provided for different exercises, then exercise versatility is improved, but the cost to accumulate and replace handles increases and handles are commonly misplaced
Solution Approach 1:
The patent applies universality by designing a single multi-functional bar assembly that can perform multiple exercises. The bar includes multiple attachment points along its length, and the hand grip assembly can be positioned at different locations on the bar and oriented at different angles, allowing the same assembly to be used for various exercises such as chest flys, tricep extensions, and bicep curls, eliminating the need for multiple specialized handles.
3Productivity
If multiple types of handles are required for different exercises, then exercise options are limited, but searching for and attaching different handles is inefficient
Solution Approach 1:
The patent applies universality by designing a single multi-functional bar assembly that can perform multiple exercises. The bar includes multiple attachment points along its length, and the hand grip assembly can be positioned at different locations on the bar and oriented at different angles, allowing the same assembly to be used for various exercises such as chest flys, tricep extensions, and bicep curls, eliminating the need for multiple specialized handles.
4Ease of operation
If the hand grip is fixedly attached to the bar, then the attachment is secure, but the user cannot rotate and pivot their wrists to elongate and contract muscles
Solution Approach 1:
The patent applies dynamics by transforming the static handle structure into a dynamic one with multiple degrees of freedom. The hand grip assembly includes a grip body that can rotate about a first axis (longitudinal axis) and a grip handle that can rotate about a second axis (transverse axis), allowing the handle to adapt to natural wrist motions during exercise rather than forcing the wrist into fixed positions.
Data Source
AI summary
A kit has an elongate bar connectable to a cable of a pulley cable exercise machine, left hand grip, right hand grip, and a plurality of fasteners that make the left and right hand grips repeatedly, removably attachable to the bar. The bar has a plurality of elongate slots and a plurality of bores, each oriented transverse to a respective slot. Each of the left and right hand grips are freely rotatable in two dimensions and has a connector pivot shaped to be received in any of the slots with a second eyelet aligned with a respective one of the bores. When assembled, a fastener is received in the bore having the second eyelet of the left hand grip and in the bore having the second eyelet of the right hand grip. Each fastener defines a pivot point about which the respective hand grip pivots within the respective slot.