Necktie Retaining Clip with Rotatable Member

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Solution Overview

Problem

Conventional necktie pins are heavy, expensive, and prone to detachment, and existing solutions that integrate a retaining function into shirts are not applicable to existing neckties and shirts, causing the necktie to fall or tilt, and are inconvenient to wear.

Innovation Solution

A lightweight necktie retaining clip connected to the back of a necktie, featuring a plate-shaped attachment member with a fastening piece, a connecting member, and a rotatable retaining member with upper and lower retaining pieces and a guide piece, which secures the necktie to a shirt without being exposed, allowing easy attachment and detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional metal necktie pin is used, then the necktie can be secured to the shirt, but the pin is heavy, expensive, and prone to detachment

Engineering Contradiction:

Improvenecktie retentionVSAvoidpin weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent replaces expensive metal pins with a lightweight plastic clip that can be easily attached and detached. The clip uses a simple plastic construction with a clamping mechanism that secures the necktie without requiring expensive metal components, thereby reducing weight and cost while maintaining retention functionality.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent substitutes the traditional metal pin and backrest mechanical system with a plastic clip that uses a different retention mechanism. Instead of piercing and anchoring into the shirt, the clip clamps onto the necktie and engages with a buttonhole in the shirt, eliminating the need for heavy metal pins and backrests.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If a conventional metal necktie pin is used, then the necktie can be secured to the shirt, but the pin is expensive and relatively high in cost

Engineering Contradiction:

Improvenecktie retentionVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent uses inexpensive plastic materials to construct the clip, replacing expensive metal pins and backrests. The plastic construction allows for low-cost manufacturing while providing sufficient retention strength, making the product affordable and economically viable.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent replaces the expensive metal-based mechanical system with a plastic clip that uses a simpler clamping and engaging mechanism. This substitution reduces material costs and manufacturing complexity while maintaining the essential retention function.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If the necktie pin is made to be secure and reliable, then the necktie remains fastened, but the structure becomes complex and cumbersome

Engineering Contradiction:

Improvenecktie retentionVSAvoidpin structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the retention system into separate functional components: a clip body that clamps the necktie, a spring mechanism that provides tension, and a buttonhole engagement feature that secures to the shirt. This segmentation allows each component to perform its specific function efficiently while keeping the overall structure relatively simple.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent incorporates a spring mechanism that provides dynamic tension adjustment. The spring can compress and expand to accommodate slight variations in necktie thickness and shirt buttonhole positioning, maintaining reliable retention without requiring a complex rigid structure.

Inventive Principle:

Principle #15Dynamics

4Adaptability or versatility

If a retaining function is integrated into the shirt itself, then the necktie can be retained, but the solution is not applicable to existing shirts and neckties

Engineering Contradiction:

Improveretention function applicabilityVSAvoidshirt modification

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent extracts the retention function from the shirt itself and places it in a separate, detachable clip that attaches to the necktie. This allows the clip to be used with existing shirts and neckties without requiring modification to the shirt's construction, thereby improving adaptability and versatility.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent designs the clip to be universally applicable to various necktie and shirt combinations. The clip can attach to different necktie widths and shirt buttonhole positions, making it a versatile solution that works with existing garments without requiring shirt-specific customization.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10321741B2Necktie retaining clip

Publication Date: 2019.06.18 KANG EUNG - TAE

AI summary

Provided is a necktie retaining clip which is connected to the back of a necktie to secure the necktie to a shirt, the necktie retaining clip including: a plate-shaped attachment member connected to a loop of cloth sewn on the back of the necktie so as to be detachable and having a fastening piece formed on the lower end portion thereof; a connecting member that connects the attachment member and a retaining member; and the retaining member connected to the connecting member so as to be rotatable. It is possible to tightly secure a necktie by connecting the retaining clip to a shirt, thereby preventing the necktie from falling to the front or being tilted and facilitating wearing and attaching/detaching the retaining clip.