Adjustable Exercise Device Micro-Adjustment Actuators

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Solution Overview

Problem

Conventional adjustable dumbbells lack the ability to micro-adjust the total weight attached to the central handle bar, requiring weight members to be attached in pairs without the option for selective or adjustable securing of weight rings or members with decreased weight.

Innovation Solution

An adjustable exercise device with a receptacle, weight members, and a handle mechanism featuring actuators and latches that allow for the selective engagement and detachment of weight elements, enabling micro-adjustment of the weight by rotating the actuators to engage different tongues and projections with weight elements, allowing for precise adjustment of the weight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If weight members are attached to the end portions of the central handle bar in pair for balancing purposes, then the structural symmetry and balance are improved, but the ability to micro-adjust the total weight is lost

Engineering Contradiction:

ImprovebalanceVSAvoidweight adjustment flexibility

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The weight members are segmented into multiple individual weight elements (first weight element, second weight element, third weight element, fourth weight element) that can be independently attached or detached from the handle bar, rather than being fixed as paired units. This segmentation allows selective attachment of individual weight elements to achieve micro-adjustment of total weight while maintaining balance through symmetric attachment patterns.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The attachment mechanism is made dynamic and adjustable, allowing the weight configuration to change from fixed paired attachment to flexible individual attachment. The handle bar structure enables weights to be selectively secured at different positions and combinations, transforming the static balanced configuration into a dynamic, adaptable system that can maintain balance while achieving various weight configurations.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If multiple weight members are provided for attaching to the end portions of the central handle bar, then the weight adjustment capability is improved, but the precision of weight adjustment is limited

Engineering Contradiction:

Improveweight adjustment capabilityVSAvoidweight adjustment precision

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

Each weight member is divided into multiple discrete weight elements with different weight values (e.g., first weight element with first weight, second weight element with second weight, etc.). This segmentation into smaller, individually selectable units enables precise micro-adjustment of the total weight by selectively attaching or detaching specific weight elements, rather than being limited to fixed weight increments.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different weight elements are assigned different local qualities (different weight values) to enable precise adjustment. The first weight element has a first weight, the second weight element has a second weight, and so on, allowing the user to select and combine specific weight elements to achieve the desired precise total weight configuration.

Inventive Principle:

Principle #3Local quality

3Stability of the object's composition

If weight rings or weight members are attached in pair for balancing purposes, then the balance is maintained, but the option for selective securing of weight rings or members with decreased weight is lost

Engineering Contradiction:

ImprovebalanceVSAvoidselective weight selection

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The paired weight members are segmented into individual weight elements that can be selectively attached or detached. Instead of being forced to attach weights in fixed pairs, the user can selectively attach individual weight elements (first weight element, second weight element, etc.) to the handle bar, enabling easy selection of different weight configurations while maintaining balance through symmetric attachment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The attachment system is made dynamic, allowing weights to be selectively secured or detached as needed. The handle bar structure with multiple attachment points enables the user to easily attach or detach individual weight elements to achieve the desired weight configuration, transforming the static paired attachment system into a dynamic, user-friendly selective attachment system.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11198031B2Adjustable exercise device

Publication Date: 2021.12.14 FLORIEY IND INT

AI summary

An adjustable exercise device includes two weight members engageable to a receptacle, two pairs of weight elements engaged on the receptacle and engaged between the weight members, and a handle mechanism includes two housings disposed on the end portions of a handle bar, two actuators pivotally attached to the handle bar for engaging with the weight elements, the actuators each include one segment for engaging with one of the weight elements, and another segment for engaging with the other weight element and for detachably anchoring the weight elements to the housings and the handle bar and for micro-adjusting the weight of the adjustable exercise device.