Folding mechanism for a portable product

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Solution Overview

Problem

Existing support frames for portable products require users to stoop, bend, or kneel to fold or unfold them, which is less than desirable in terms of ergonomics, especially for users with back or joint issues.

Innovation Solution

A folding support mechanism with a product support frame, first and second sets of legs, where the second set of legs includes upper and lower folding leg portions that are pivotably connected, allowing for easy transformation between unfolded and folded positions without requiring significant bending or reaching.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional folding frames are used, then the frame can be folded and unfolded for transport and storage, but the user must stoop, bend, or kneel to reach the handle or device, which is ergonomically poor

Engineering Contradiction:
Improveease of folding operationVSAvoidergonomic strain on user
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a vertical dimension to the folding operation by positioning the folding handle at an elevated height on the frame structure. This allows users to operate the folding mechanism while standing upright, transforming a horizontal bending motion into a vertical reaching motion that preserves ergonomic posture.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent introduces a long-reach handle as an intermediary tool that extends the user's reach to the folding mechanism. This intermediary element bridges the gap between the user's hand and the folding pivot point, allowing operation without direct contact and without compromising ergonomic posture.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the frame is designed for easy transport and compact storage, then it can be folded, but the folding mechanism requires complex handles or devices that are difficult to reach

Engineering Contradiction:
Improvetransportability and storage flexibilityVSAvoidaccessibility of folding mechanism
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent merges the folding handle with the frame structure itself, integrating the operational element into the existing frame geometry. This eliminates the need for separate, complex folding mechanisms and allows the handle to be positioned at an ergonomically accessible height as part of the overall frame design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent repositions the folding mechanism in the vertical dimension, placing the handle at an elevated position on the frame. This dimensional change allows users to access the folding mechanism while standing, transforming an inaccessible low-positioned mechanism into an easily reachable high-positioned mechanism.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Duration of action of moving object

If the legs are made pivotable for folding, then the frame can transform between unfolded and folded positions, but the connection points may require users to reach low or bend to operate

Engineering Contradiction:
Improvetransformation capability between positionsVSAvoiduser posture during operation
Core Design Contradiction:
Duration of action of moving objectVSEase of operation

Solution Approach 1:

The patent repositions the pivot connection points in the vertical dimension, placing them at elevated positions on the frame structure. This allows users to operate the folding mechanism while maintaining an upright posture, transforming a low-positioned pivot system into a high-positioned system that preserves ergonomic alignment.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent introduces a mechanical linkage or extended handle as an intermediary between the user's hand and the pivot connection point. This intermediary element transmits the user's force to the pivot point while allowing the user to operate from a comfortable, upright position rather than bending or reaching low.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

The folding support mechanism provides improved ergonomics and ease of use by allowing users to fold and unfold the support frame without straining, thus making it more accessible for a wider range of users.

Implementation Method 1

The second set of legs may include upper folding leg portions and lower folding leg portions which are pivotably connected with one another

Methodology Applied
Scientific EffectFolding: Folding

Implementation Method 2

flanges on at least one of the upper folding leg portions or the lower folding leg portions may prevent over-rotation of the upper folding leg portions relative to the lower folding leg portions

Methodology Applied
Scientific EffectMechanical constraint:

Data Source

PatentUS20250040757A1Folding mechanism for a portable product
Publication Date: 2025.02.06 THE COLEMAN CO INC
  • US20250040757A1 patent drawing
  • US20250040757A1 patent drawing
  • US20250040757A1 patent drawing

AI summary

A folding mechanism for a portable product includes a product support frame. a first set of legs. and a second set of legs. The first set of legs and second set of legs may be pivotably connected with the product support frame and with each other. The second set of legs may further comprise upper folding leg portions and lower folding leg portions pivotably connected with one another. The pivotable connections may allow for rotation of the product support frame. the first set of legs. the upper folding leg portions. and the lower folding leg portions when the folding mechanism is folded and unfolded. When unfolding the folding mechanism. over-rotation stops may prevent rotation of the upper folding leg portions and lower folding leg portions once the folding mechanism reaches an unfolded position. The over-rotation stops may be flanges positioned and located on the upper folding leg portions.