Arcuate Rail Rolling Rocker for Side-to-Side Motion Stability

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Solution Overview

Problem

Conventional rocking chairs and gliders lack a solution for creating a substantially lateral or side-to-side rocking pattern, failing to provide an enhanced rocking motion for users.

Innovation Solution

A rolling rocker design featuring a seat with an arcuate rail connected to the seat, configured to contact a surface and facilitate a substantially side-to-side rocking motion, along with a leg extending downwardly to provide a contact point and prevent tipping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional rocking chairs use parallel rocking rails, then they rock in a forward to back pattern, but they cannot provide a substantially lateral or side-to-side rocking motion

Engineering Contradiction:

Improverocking motion patternVSAvoidrail configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies curvature by replacing the conventional straight parallel rocking rails with an arcuate rail that follows a curved path. This arcuate configuration enables the rocker to move laterally from side to side rather than forward and backward, fundamentally changing the rocking motion pattern while maintaining the essential rail-based support structure

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The invention transitions the rocking motion from a one-dimensional forward-backward movement to a two-dimensional lateral motion by positioning the arcuate rail in a different spatial orientation. The curved rail path introduces a lateral dimension to the rocking motion, allowing the seat to move side-to-side relative to the user's forward direction

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the arcuate rail is connected to the seat by legs at an angle, then the rail follows a radial path during rocking, but the structure becomes more complex

Engineering Contradiction:

Improverocking motion smoothnessVSAvoidleg connection structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent employs asymmetry by positioning the arcuate rail at an angular offset from the vertical centerline of the rocker. This asymmetric configuration causes the rail to follow a radial path during rocking motion, creating a more natural and smooth side-to-side movement that mimics natural rocking patterns while distributing forces more effectively

Inventive Principle:

Principle #4Asymmetry

3Adaptability or versatility

If the arcuate rail extends downward to contact the surface, then it enables side-to-side rocking, but it may cause the rocker to tip over

Engineering Contradiction:

Improverocking capabilityVSAvoidtipping resistance

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent implements a counterbalancing mechanism using a front leg that extends downward from the front portion of the seat to provide a contact point with the ground. This front contact point acts as a counterweight element that prevents the rocker from tipping forward during lateral rocking motion, maintaining stability while enabling the side-to-side rocking capability

Inventive Principle:

Principle #8Anti-weight (Counterweight)

Data Source

PatentUS20250107623A1Rolling rocker

Publication Date: 2025.04.03 CONARD MICHAEL

AI summary

A rolling rocker includes a seat, an arcuate rail disposed on a rear portion of the seat, and a leg disposed on a front portion of the seat and extending downwardly to provide a contact point with a surface. The arcuate rail extends downwardly and is configured to contact the surface to facilitate rocking in a substantially side-to-side motion relative to a seated user.