Split-Cylinder Forearm Exerciser for Stable Rope Winding
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Solution Overview
Problem
Existing forearm training methods using steel tubes and counterweights are prone to out-of-control actions, weight swaying, and slipping due to unsecured winding positions, leading to safety hazards and training intensity deviations.
Innovation Solution
A forearm exerciser with a cylindrical structure, an inner ring, and a winding portion connected to a suspension rope, featuring grip portions, anti-slip patterns, and a pull clasp assembly for stable mounting on a rod body, ensuring balanced and secure forearm training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a steel tube with rope is used to suspend counterweight for forearm training, then the training can be performed with simple equipment, but the rope position shifts during winding and lifting causing training intensity deviation and strain
Solution Approach 1:
The exerciser body is divided into a first body and a second body formed in semi-circular structure along a plane of its central axis, with a pull clasp assembly connecting them. This segmentation allows the device to be opened for mounting on rod bodies and closed for stable rope winding, resolving the contradiction between simple equipment and reliable rope positioning.
Solution Approach 2:
A pull clasp assembly is introduced as an intermediary component to connect the first and second bodies, enabling the exerciser body to transition between open and closed states. This mediator ensures the rope winding position remains stable during exercise while maintaining equipment simplicity.
2Device complexity
If the exerciser body is made as a complete cylindrical structure, then the structure is simple and compact, but it is difficult to mount and dismount from the rod body
Solution Approach 1:
The exerciser body is segmented into first and second bodies that can be opened and closed. This allows the device to maintain a compact cylindrical structure when closed while enabling easy mounting and dismounting from rod bodies through the opening and closing action of the segmented structure.
Solution Approach 2:
The exerciser body transitions from a static complete cylinder to a dynamic structure that can open and close. The pull clasp assembly enables this dynamic transformation, allowing the device to be mounted on rod bodies when open and secured when closed, resolving the contradiction between structural compactness and operational convenience.
3Device complexity
If the winding portion has the same outer diameter as the grip portion, then the structure is uniform and simple, but the suspension rope cannot be stably wound and positioned
Solution Approach 1:
The winding portion is designed with a smaller outer diameter than the grip portion, creating a localized difference in dimensions. This local quality change provides a dedicated space for stable rope winding while maintaining the overall simplicity of the cylindrical structure, resolving the contradiction between structural uniformity and rope winding stability.
4Device complexity
If the grip portions are not provided with anti-slip patterns, then the surface is smooth and simple, but the hands may slip during exercise reducing training effectiveness
Solution Approach 1:
Anti-slip patterns are applied locally to the grip portions rather than the entire surface. This provides enhanced grip stability where needed while maintaining surface simplicity in other areas, resolving the contradiction between surface simplicity and grip stability.
Data Source
AI summary
A forearm exerciser is provided, including an exerciser body, wherein the exerciser body is of a cylindrical structure and includes a winding portion in the middle and grip portions symmetrically arranged at both ends of the winding portion. A suspension rope is connected to the winding portion, and an inner ring for allowing the rod body to pass through is formed at a central axis of the exerciser body, so as to ensure the training effect of the forearm and ensure the safe training of a trainee.