Adjustable Kettlebell Handle with Removable Weight Shaft
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Solution Overview
Problem
Traditional kettlebells are often too heavy or too light for exercisers, and adding or removing weights is cumbersome or impossible, necessitating a device that allows quick and easy adjustment of weight.
Innovation Solution
A hand-held exercise device with a rigid handle and a weight attachment mechanism featuring a shaft receiver and a rigid shaft, where weights can be securely attached and detached using a latch mechanism or threaded connection, allowing intuitive use, easy manufacturing, storage, and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional one-piece kettlebell is used, then structural simplicity is maintained, but weight adjustability is lost
Solution Approach 1:
The kettlebell is divided into separate components: a handle assembly and removable weight plates. The handle includes a receiver that accepts weight plates with engagement features (such as slots or holes) that mate with pins or latches on the handle. This segmentation allows users to assemble different weight configurations while maintaining overall structural simplicity through standardized connection interfaces.
2Adaptability or versatility
If weights are made removable for adjustability, then weight exchange capability is improved, but attachment reliability deteriorates
Solution Approach 1:
The weight plates are pre-formed with engagement features (slots, holes, or protrusions) that align with corresponding features on the handle receiver. This preliminary preparation ensures that when weights are attached, they automatically engage in the correct orientation and position, providing reliable attachment without requiring complex fastening mechanisms during the attachment process.
3Productivity
If quick weight exchange is implemented, then operation speed is improved, but device complexity increases
Solution Approach 1:
The handle receiver and weight plate engagement features are designed with symmetric or self-aligning geometries that allow weights to be attached or exchanged without requiring precise manual alignment. The engagement interface is designed so that the weight naturally seats itself in the correct position when inserted, enabling quick exchange while keeping the mechanism simple and intuitive.
Data Source
AI summary
An exercise device includes a rigid handle having a lower end and an upper end. The upper end is adapted for grasping by a person's hand, and the lower end is fixed with a shaft receiver. A bottom end of the shaft receiver is adapted for receiving a top end of a rigid shaft that is adapted to receive one or more weights. A weight stop projects away from a lower end of the rigid shaft to prevent the weights from sliding off of the rigid shaft. In use, with one or more of the weights fixed on the rigid shaft, and with the top end of the rigid shaft fixed with the shaft receiver, the person may grasp the handle to perform exercises. A latch of the shaft receiver selectively locks the rigid shaft with the shaft receiver. The shaft and shaft receiver may include cooperative screw threads.