Suspended Footrest With Pivoting Supports for Passive Desk Exercise

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Solution Overview

Problem

Existing exercise devices for desk use require active participation, distracting users while they work or study, and do not provide calorie burn when not actively exercising.

Innovation Solution

A suspended footrest device with pivotally connected footrests and a non-rigid suspension member, allowing for passive movement and exercise, which can be installed in any location, including a chair, to provide subtle muscular contractions and movement without visible effort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If active exercise devices are used at a desk, then exercise benefits are achieved, but user focus and productivity deteriorate due to distraction

Engineering Contradiction:
Improvework productivityVSAvoidexercise participation
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The suspension footrest is designed to provide passive exercise through its inherent suspension mechanism. The device automatically creates instability and requires minimal user input - simply placing feet on the footrest activates the exercise effect through subtle adjustments and movements, eliminating the need for active participation while maintaining exercise benefits

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The footrest incorporates a suspension system with multiple degrees of freedom that allows dynamic movement in response to user weight and position. The device adapts to user movements automatically, providing continuous passive exercise without requiring active control, thus maintaining productivity while delivering exercise benefits

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If passive exercise device is used, then user focus is maintained, but exercise effectiveness deteriorates without active participation

Engineering Contradiction:
Improveexercise participationVSAvoidcalorie burn
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The suspension footrest creates controlled vibrations and oscillations through its suspension mechanism. As users place their feet on the footrest, the unstable suspension causes subtle vibrations that engage core and leg muscles passively, generating calorie burn without requiring active exercise participation

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The device uses suspension members that create counterbalancing forces against user weight. This counterweight effect generates instability that requires continuous minor muscular adjustments to maintain foot position, providing passive exercise and calorie expenditure while the user remains focused on work

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Stability of the object's composition

If rigid footrest is used, then structural stability is achieved, but movement capability deteriorates

Engineering Contradiction:
Improvefootrest stabilityVSAvoidmovement range
Core Design Contradiction:
Stability of the object's compositionVSLength of moving object

Solution Approach 1:

The footrest employs a suspension system with controlled degrees of freedom that provides stability in the suspension direction while allowing movement in other directions. The rigid footrest platform maintains structural integrity, while the suspension members enable dynamic movement and exercise capability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The device separates the rigid footrest platform from the suspension mechanism. The footrest itself remains structurally stable and rigid, while the suspension members connected to fixed locations provide the necessary movement capability and exercise effect

Inventive Principle:
Principle #1Segmentation

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 unconscious exercise, reducing the risk of postural fixity and obesity by promoting subtle movement and calorie burn while allowing users to work or study without distraction, providing a means to monitor and quantify the exercise through optional sensors.

Implementation Method 1

The suspension member may be either elastic or inelastic

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a ball-and-socket joint connected between each footrest and the respective end of the rigid elongated member to allow pivotal movement

Methodology Applied
Scientific EffectSpherical joint mechanism: Ball

Implementation Method 3

a damper positioned between each footrest and the respective end of the rigid elongated member for dampening the pivotal movement of the ball-and-socket joint

Methodology Applied
Scientific EffectDamping: Damping

Data Source

PatentUS9403049B2Exercise device
Publication Date: 2016.08.02 ACTIVE IDEAS LLC
  • US9403049B2 patent drawing
  • US9403049B2 patent drawing
  • US9403049B2 patent drawing

AI summary

A suspended footrest device for supporting and exercising a user's feet and legs. The footrest device includes a pair of footrests that are pivotally connected to the opposed ends of a rigid elongated member. A non-rigid suspension member is connected to a medial section of the elongated member to suspend the footrests. The footrests are pivotally connected to the rigid elongated member.