Jump Rope Handle With Spring-Supported Collet
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Solution Overview
Problem
Traditional jump ropes often have an unnatural feel, can cause abrupt changes in motion, and are not adjustable in length, leading to a less than satisfactory workout experience and potential breakage under heavy use.
Innovation Solution
A jump rope design featuring handle assemblies with a rotating and sliding shaft assembly, a collet for rope retention, and a spring to absorb shock, allowing for adjustable length without tools and preventing twisting or kinking, enhancing responsiveness and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional jump ropes are used, then the structure is simple and easy to manufacture, but the feel is unnatural and motion changes are abrupt
Solution Approach 1:
The handle is divided into multiple functional components: an outer housing, an inner shaft assembly, a collet mechanism, and a spring system. This segmentation allows each component to perform its specific function independently, creating a more refined and natural motion transmission to the rope while maintaining manufacturability through modular assembly.
Solution Approach 2:
The patent employs a nested structure where the shaft assembly is housed within the outer handle housing, the collet is nested within the shaft, and the spring is positioned within the hollow shaft. This nested arrangement reduces overall handle size while maintaining the complexity benefits of multiple components, resolving the contradiction between natural feel and structural simplicity.
2Adaptability or versatility
If traditional jump ropes are used, then the length is fixed, but the rope cannot be adjusted without tools
Solution Approach 1:
The collet mechanism is designed to be manually operated by the user without requiring external tools. The user can grip the handle, rotate the collet, and adjust the rope length through direct manual interaction with the self-contained adjustment mechanism, eliminating the need for wrenches or other tools.
Solution Approach 2:
The adjustment mechanism transforms from a static fixed-length design to a dynamic adjustable design. The collet can be rotated to different positions, allowing the effective rope length to change during use, providing adaptability while maintaining ease of operation through simple rotational motion.
3Stability of the object's composition
If traditional jump ropes are used, then the structure is simple, but the rope is prone to twisting and kinking
Solution Approach 1:
The collet acts as an intermediary component between the rope and the handle shaft. It provides a secure gripping interface that prevents the rope from twisting or kinking by distributing the clamping force evenly around the rope circumference, while the spring provides continuous contact pressure to maintain this stabilizing grip.
Solution Approach 2:
The spring mechanism dynamically adjusts the clamping force parameter applied to the rope. As the rope experiences lateral forces during use, the spring compresses or extends to maintain optimal gripping pressure, preventing twisting and kinking while adapting to varying operational conditions.
4Reliability
If traditional jump ropes are used, then the components are simple, but breakage is more likely under heavy use
Solution Approach 1:
The spring positioned within the hollow shaft serves as a cushioning element that absorbs shock and lateral forces before they can transmit directly to the rope or handle components. This beforehand cushioning protects the system from sudden impacts and heavy use conditions that would otherwise cause breakage.
Solution Approach 2:
The handle assembly combines multiple materials with complementary properties: the outer housing provides structural protection, the inner shaft offers precise mechanical guidance, the collet provides secure rope gripping, and the spring delivers shock absorption. This composite structure enhances overall reliability under heavy use while managing the complexity through functional integration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design provides a natural feel, improved responsiveness, and adjustable length, reducing the likelihood of breakage and enhancing user control and comfort during workouts.
Implementation Method 1
a spring to absorb shock
Implementation Method 2
a spring to absorb shock
Data Source
AI summary
In one example in accordance with the present disclosure, a jump rope handle assembly is described. The jump rope handle assembly includes a handle having a longitudinal axis. A shaft assembly is disposed within the handle. The shaft assembly is to receive a jump rope section and is to rotate and slide within the handle. The shaft assembly includes a collet to retain the jump rope section. The jump rope handle assembly also includes a spring to compress between the shaft assembly and an interior impact surface of the handle.