Exercise Handle Attachment Mechanism for Secure Tube Connection
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Solution Overview
Problem
Existing resistance exercise devices with stretchable elongate tubes lack a secure and efficient mechanism to attach handles, leading to instability during use.
Innovation Solution
A handle design featuring a yoke with first and second passages and a channel that allows the elongate member to be securely attached, using a U-shaped configuration with a base that includes a ledge to prevent the enlarged portion from passing through, ensuring the elongate member is locked in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple attachment mechanism is used for the elongate member, then the device complexity is reduced, but the reliability of attachment deteriorates
Solution Approach 1:
The base is divided into multiple functional sections: a first section with a first passage for receiving the elongate member, and a second section with a second passage for securing the enlarged portion. This segmentation allows each section to perform its specific function independently, achieving reliable attachment without requiring a single complex mechanism.
Solution Approach 2:
The enlarged portion of the elongate member is inserted through the first passage and then secured within the second passage of the base. The channel connects these passages, creating a nested arrangement where the elongate member passes through multiple concentric openings in sequence, achieving secure retention through a multi-stage insertion process.
2Ease of operation
If the elongate member is allowed to pass freely through the handle, then the ease of operation is improved, but the stability during use deteriorates
Solution Approach 1:
The attachment mechanism transitions from a static fixed connection to a dynamic multi-stage insertion process. The elongate member can be freely inserted through the channel and first passage during assembly, but is then dynamically secured in the second passage during use, providing both ease of attachment and stability during exercise.
Solution Approach 2:
The channel acts as an intermediary pathway that guides the elongate member from the first passage to the second passage. This intermediate structure enables smooth transition and secure positioning without requiring the elongate member to pass directly through a single restrictive opening, maintaining ease of operation while ensuring stability.
3Manufacturing precision
If the base passages extend to the side surfaces, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The base is designed with different structural qualities in different regions. The first and second passages are positioned to receive the elongate member and enlarged portion respectively, with the channel connecting them. None of these passages extend to the opposed side surfaces, allowing each passage to be optimized for its specific function without requiring complex through-side-surface routing, thus achieving manufacturing precision without excessive complexity.
Data Source
AI summary
A handle for engaging a stretchable tube for use in exercise comprising a yoke and a handgrip. The yoke defining first and second passages and a channel. The first passage sized to permit the passage therethrough of the elongate member and a portion associated with the elongate member and the second passage and channel sized to permit the passage therethrough of the elongate member and to prevent the passage therethrough of the enlarged portion. The channel interconnecting the first and second passages for moving the elongate member from the first passage to the second passage for engagement within the second passage. An exercise device comprising one or more of the handles, the elongate member and one or more enlarged portions. A method of constructing the exercise device by securing the handle to the elongate member.