Sleeved Partial Undershirt for Arm Protection and Thermal Comfort

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Solution Overview

Problem

Current apparel lacks a convenient solution for providing temporary arm protection from the sun, insects, and cold without adding bulk or requiring the removal of an outer garment, leading to discomfort and restricted heat flow during activities.

Innovation Solution

A sleeved partial undershirt garment accessory with a short torso region and long sleeves that can be easily removed without taking off an outer garment, made from stretchable fabric to fit closely under another shirt, allowing for easy application and removal while maintaining comfort and heat flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a long-sleeve shirt is worn to provide arm protection, then protection from sun, insects, and cold is improved, but comfort and heat flow are worsened due to multi-layer restriction

Engineering Contradiction:

Improveprotection from sun, insects, and coldVSAvoidcomfort and heat flow

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The invention divides the protective garment into two separate components: a sleeveless upper body garment and detachable sleeves. This segmentation allows the user to wear only the necessary protective portion (sleeves) without the bulk and heat restriction of a complete long-sleeve shirt, thus maintaining protection while improving comfort and heat flow.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sleeves are extracted as a separate detachable component from the upper body garment. This extraction allows the sleeves to be worn independently for arm protection without requiring the entire long-sleeve shirt, eliminating the multi-layer restriction issue while preserving the protective function.

Inventive Principle:

Principle #2Taking out (Extraction)

2Object-affected harmful factors

If a jacket or sweatshirt is carried to provide arm coverage, then protection is improved, but portability is worsened due to bulk

Engineering Contradiction:

Improvearm coverage and protectionVSAvoidbulk and portability

Core Design Contradiction:

Object-affected harmful factorsVSWeight of moving object

Solution Approach 1:

By segmenting the protective garment into a lightweight sleeveless top and separate sleeves, the invention eliminates the need to carry a bulky jacket or sweatshirt. The sleeves can be easily attached or detached as needed, providing protection without the weight and bulk of traditional outerwear.

Inventive Principle:

Principle #1Segmentation

3Object-affected harmful factors

If multiple fabric layers are worn on the torso to provide arm protection, then protection from sun and abrasion is improved, but heat transfer is worsened

Engineering Contradiction:

Improveprotection from sun and abrasionVSAvoidheat transfer

Core Design Contradiction:

Object-affected harmful factorsVSTemperature

Solution Approach 1:

The invention segments the protective function so that only the sleeves (not the entire long-sleeve shirt) are worn over the short-sleeve garment. This reduces the number of fabric layers on the torso from multiple layers to just the sleeve portions, allowing better heat transfer while maintaining sun and abrasion protection on the arms.

Inventive Principle:

Principle #1Segmentation

4Reliability

If sleeves are made non-detachable to provide continuous protection, then reliability is improved, but adaptability is worsened

Engineering Contradiction:

Improvecontinuous protectionVSAvoidconversion between long-sleeve and short-sleeve configurations

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The sleeves are designed with dynamic attachability - they can be securely attached when protection is needed and easily detached when not needed. This dynamic characteristic provides both reliable continuous protection when worn and complete adaptability when removed, allowing seamless conversion between long-sleeve and short-sleeve configurations.

Inventive Principle:

Principle #15Dynamics

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 quick and comfortable addition of arm protection without bulk, allowing for easy conversion between long-sleeve and short-sleeve configurations without interrupting activities and maintaining thermal comfort.

Implementation Method 1

made from stretchable fabric to fit closely under another shirt

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS11785996B2Sleeved partial undergarment and garment system

Publication Date: 2023.10.17 SLEEVEIT LLC

AI summary

A unitary sleeved partial undershirt may be configured to be worn as an outer garment or beneath an outer garment. The partial undershirt may include tubular first and second sleeves of at least 12 inches in length, each having tubular construction that is void of any fastener. The first and second sleeves may be sized to conform to contours of arms of the wearer. The partial undershirt may additionally include a yoke including a front yoke portion, a back yoke portion, an undershirt neck edge defining an undershirt neck opening, and an undershirt torso opening edge defining an undershirt torso opening. The yoke may extend continuously and non-separably between the sleeves, and the front and/or back yoke portions may be sized such that the distance between the undershirt neck edge and the undershirt torso opening edge at the front yoke portion and back yoke portion is in a range between 1.35 and 8.8 inches.