Roofing Shoe Traction Chassis with Detachable Straps

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Solution Overview

Problem

Roofing professionals face discomfort and inefficiency due to the need to wear heavy and hot specialized shoes with limited style options, which are often removed frequently between jobs, disrupting their workday.

Innovation Solution

A roofing shoe traction chassis system with detachable toe and heel straps and a traction sheet that can be quickly attached to standard shoes, providing adjustable fit and high friction traction using hook-and-loop fasteners and ratchet mechanisms, allowing for comfortable and ventilated wear with interchangeable traction layers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If specialized roofing shoes with traction material are used, then traction on roofing surfaces is improved, but weight and heat discomfort increase

Engineering Contradiction:

Improvetraction on roofing surfacesVSAvoidshoe weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The footwear system is divided into two separate components: a reusable shoe and a detachable traction chassis. The chassis can be quickly attached and detached, allowing users to wear comfortable shoes for non-roofing tasks and attach the traction chassis only when needed for roofing work, thus eliminating the need to constantly wear heavy specialized roofing shoes

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system transitions from a static specialized roofing shoe design to a dynamic modular system where the traction chassis can be quickly attached and detached. This allows the footwear configuration to adapt to different work requirements, providing traction when needed and comfort when roofing work is not performed

Inventive Principle:

Principle #15Dynamics

2Reliability

If specialized roofing shoes are used, then traction on roofing surfaces is improved, but ventilation and comfort are reduced

Engineering Contradiction:

Improvetraction on roofing surfacesVSAvoidventilation and comfort

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The traction function is extracted from the shoe itself and placed into a separate detachable chassis. This allows the shoe to remain a comfortable, well-ventilated footwear item while the traction capabilities are provided by an external attachment that can be added only when required

Inventive Principle:

Principle #2Taking out (Extraction)

3Loss of time

If detachable traction chassis with quick attachment is used, then time to change footwear is reduced, but device complexity increases

Engineering Contradiction:

Improvetime to change footwearVSAvoidchassis attachment mechanism

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The complex mechanical fastening systems (buckles, laces, multiple straps) are replaced with simple snap-fit engagement mechanisms. The chassis features engagement protrusions that align with corresponding recesses in the shoe, allowing for tool-free, one-handed attachment and detachment while maintaining secure connection

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The attachment mechanism is simplified by extracting only the essential engagement function and eliminating unnecessary mechanical components. The design uses straightforward geometric interlocking features rather than complex mechanical systems, reducing the time and effort required for attachment while keeping the mechanism simple

Inventive Principle:

Principle #2Taking out (Extraction)

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 comfortable and ventilated wear while maintaining high traction on various roofing surfaces, allowing for quick attachment and detachment, and accommodating different shoe sizes with adjustable straps and a high friction traction sheet that meets or exceeds industry friction standards.

Implementation Method 1

secured by hook-and-loop fastener

Methodology Applied

Scientific EffectHook-and-loop fastener: Mechanical Fastener

Implementation Method 2

A heel strap may comprise a ratchet mechanism that can be used to index ratchet teeth inserted into the ratchet

Methodology Applied

Scientific EffectRatchet mechanism: Ratchet

Implementation Method 3

An exemplary heel strap or portion thereof may be elastic to provide secure positioning around the heel of the shoe

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 4

The detachable traction sheet provides high friction and traction on a wide variety of roofing surface

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS11751637B1Roofing traction shoe chassis and method of donning said chassis to a shoe

Publication Date: 2023.09.12 RIERA DAVIN

AI summary

A roofing shoe traction chassis system has a roofing shoe traction chassis with a toe strap, foot strap and heel strap coupled thereto for securing a shoe to the chassis. The chassis also has a detachable traction sheet configured for attachment to the base of the roofing shoe chassis. The roofing shoe traction chassis can be quickly donned over a pair of shoes allowing a user to wear a more comfortable and better ventilated shoe. The detachable traction sheet can be changed out as the traction layer is worn. An exemplary roofing shoe traction chassis has a strap support that extends up from a support plate and has a toe strap and foot strap aperture to receive and retain the toe and heel straps respectively. The support plate may also have post apertures for receiving and retaining heel strap posts.