Adjustable Kettlebell Weight Adjustment Mechanism
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Solution Overview
Problem
Conventional adjustable kettlebell devices have complex structures that make it difficult to quickly and easily attach or detach weight members from the handle, leading to increased manufacturing costs and complexity.
Innovation Solution
An adjustable exercise device with a compact structure featuring a receptacle, handle, and control device, where weight members are selectively engaged through a shaft and pins, allowing for easy adjustment and operation using an actuating knob and cam mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional adjustable kettlebell devices use complex structures to allow weight adjustment, then weight members can be attached and detached, but the structure becomes complicated and manufacturing cost increases
Solution Approach 1:
The weight carrier is divided into multiple chambers that can selectively receive different weight members. Each chamber can be independently engaged or disengaged through the control device, allowing modular weight adjustment without requiring a complex overall structure.
Solution Approach 2:
The control device with shaft and pins serves multiple functions: it can engage with multiple weight members simultaneously, control multiple chambers, and allow both attachment and detachment operations through a single unified mechanism, reducing the need for separate components for each function.
2Adaptability or versatility
If conventional adjustable kettlebell devices use complex structures to allow weight adjustment, then weight members can be attached and detached, but manufacturing cost increases
Solution Approach 1:
By segmenting the weight carrier into chambers and using standardized weight members with matching engagement features, the manufacturing process is simplified. Each component can be manufactured independently using standard procedures, reducing overall manufacturing complexity and cost.
Solution Approach 2:
The weight members use identical or similar engagement features (openings, spaces, depressions) that can be replicated across different weight members. This standardization allows for efficient manufacturing through copying the same design patterns, reducing tooling costs and production complexity.
3Adaptability or versatility
If conventional adjustable kettlebell devices use complex structures, then weight members can be attached and detached, but the operation becomes difficult and time-consuming
Solution Approach 1:
The control device is pre-positioned within the weight carrier, and the pins are already aligned with the openings in weight members. When a user wants to adjust weight, they simply need to move the control device to engage or disengage pre-aligned features, eliminating the need for complex manual manipulation during operation.
Solution Approach 2:
The control device can dynamically transition between different engagement positions, allowing quick switching between different weight configurations. The movable shaft and pins enable rapid engagement/disengagement of weight members without requiring manual disassembly of fixed components.
4Ease of manufacture
If conventional adjustable kettlebell devices use simple structures, then manufacturing is easier, but weight members cannot be easily attached and detached
Solution Approach 1:
The weight carrier is segmented into chambers with standardized engagement features that simplify manufacturing. Each chamber can be independently formed, and the modular design allows for easy assembly of the complete device while maintaining simple individual component structures.
Solution Approach 2:
The control device acts as an intermediary mechanism that provides the necessary complexity for weight attachment/detachment while keeping the weight members and carrier structures simple. The control device mediates between the simple weight members and the requirement for adjustable weight configuration.
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
Enables quick and easy attachment and detachment of weight members, simplifying manufacturing and operation, reducing complexity and costs while allowing users to easily adjust the kettlebell's weight.
Implementation Method 1
The actuating knob includes a cam member pivotally coupled to the shaft with a pivot axle for moving the shaft and the first and the at least one second pins up and down relative to the receptacle and the first and the at least one second weight members selectively.
Data Source
AI summary
An adjustable kettlebell or exercise device includes a handle device formed on a receptacle, and one or more weight members selectively engageable into the receptacle, and a control device includes a shaft engaged through the receptacle and engageable through the weight members for selectively anchoring either of the weight members to the receptacle with the shaft. The weight members each include a bore for engaging with the shaft, and an opening communicating with the bore of the weight members, and the shaft includes one or more pins engageable through the openings of the weight members for selectively engaging with the weight members.