Adjustable Dumbbell With Integrated Catch Guide Channel
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Solution Overview
Problem
Conventional adjustable dumbbells require permanent extension carriers or tracks, making them longer and difficult to adjust, and often lack the ability to easily attach or detach additional weight rings, complicating micro-weight adjustments.
Innovation Solution
An adjustable dumbbell assembly with a handle bar, housing, and weight elements that use a catch and guide channel system to allow for quick and precise weight adjustments without extension carriers, enabling the attachment and detachment of weight members to reduce the overall length and facilitate micro-adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If extension carriers or tracks are permanently formed on the end portions of the central handle bar, then the adjustable dumbbell can selectively secure weight rings, but the total length of the dumbbell assembly is greatly increased
Solution Approach 1:
The patent merges the extension carrier function with the central handle bar by forming the extension carriers as integral parts of the handle bar itself, eliminating the need for separate, externally attached extension carriers. This integration maintains the weight adjustment capability while reducing the overall length by eliminating gaps and redundant structural elements between the handle bar and extension carriers.
Solution Approach 2:
The patent employs a nested structure where weight rings are secured within recesses formed in the extension carriers, which are themselves integrated into the central handle bar. This nesting approach allows multiple weight rings to be compactly arranged along the length of the handle bar without requiring additional external extension structures, thereby reducing the total length while maintaining adaptability.
2Device complexity
If the handle of the typical adjustable dumbbells is not designed for attaching or detaching weight rings, then the structure is simpler, but the ability to micro adjust the weight is limited
Solution Approach 1:
The patent designs the central handle bar to serve multiple functions: it acts as both the structural core for supporting weight rings and as an attachment mechanism for additional weight members. The extension carriers integrated into the handle bar can selectively secure both standard weight rings and additional weight members, providing universal functionality that enables micro-adjustments without significantly increasing structural complexity.
Solution Approach 2:
The patent segments the weight adjustment system into modular components: the central handle bar with integrated extension carriers for primary weight rings, and additional attachment points for supplementary weight members. This segmentation allows independent attachment and detachment of different weight components, enabling precise micro-adjustments while maintaining a relatively simple overall structure.
3Adaptability or versatility
If the actuating device is pivoted or rotated relative to the base, then weight adjustment is possible, but the device is not easily or quickly adjusted by users
Solution Approach 1:
The patent employs a self-service mechanism where users can directly attach or detach weight rings and weight members from the extension carriers and handle bar without requiring complex actuating devices. The selective securing mechanism allows users to easily engage and disengage weight components through simple manual operations, eliminating the need for pivoting or rotating actuating devices and significantly improving ease of operation.
Data Source
AI summary
An adjustable dumbbell device includes a handle bar, a housing attached to one end of the handle bar, one or more weight elements engageable into the housing, and a catch is slidably received and engaged in the housing and extendible out of the housing to engage with either the weight elements and to anchor either of the weight elements to the housing and the handle bar and for micro adjusting the weight of the dumbbell assembly. The housing includes a guide channel for slidably receiving the catch. The housing includes a chamber communicating with the guide channel of the housing for receiving and engaging with the weight elements.