Replacement Door Handle With Segmented Connection Member

Solution Overview

Problem

Existing door handles are difficult to replace or change according to user preference, requiring the entire door handle and lock to be replaced, which is time-consuming and costly, and manufacturing various forms or shapes incurs excessive mold costs.

Innovation Solution

A replacement door handle system featuring a connection member with a groove and a handle body with a corresponding fitting portion, allowing for easy coupling and decoupling, and manufactured using various materials and designs, including a cover for protection during installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the entire door handle and lock are replaced to change the door handle design, then the user preference or taste can be satisfied, but the replacement cost and time increase significantly

Engineering Contradiction:

Improvedoor handle design varietyVSAvoidreplacement time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The door handle system is divided into two independent segments: a connection member that remains fixed to the door lock, and a handle body that can be independently replaced. This segmentation allows users to change only the handle body portion to satisfy design preferences without replacing the entire door handle assembly, thereby reducing replacement time and cost.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If the entire door handle and lock are replaced to change the door handle design, then the user preference or taste can be satisfied, but the replacement cost increases

Engineering Contradiction:

Improvedoor handle design varietyVSAvoidreplacement cost

Core Design Contradiction:

Adaptability or versatilityVSLoss of substance

Solution Approach 1:

The door handle system is divided into two independent segments: a connection member that remains fixed to the door lock, and a handle body that can be independently replaced. This segmentation allows users to change only the handle body portion to satisfy design preferences without replacing the entire door handle assembly, thereby reducing replacement time and cost.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If door handles are manufactured in various forms or shapes to satisfy user preference, then the user satisfaction increases, but the mold cost for manufacturing increases

Engineering Contradiction:

Improvehandle body design varietyVSAvoidmold cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The door handle system is divided into two independent segments: a connection member that remains fixed to the door lock, and a handle body that can be independently replaced. This segmentation allows users to change only the handle body portion to satisfy design preferences without replacing the entire door handle assembly, thereby reducing replacement time and cost.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The connection member serves as a universal base component that can accommodate multiple different handle body designs. By standardizing the connection interface, a single connection member can work with various handle bodies of different forms, shapes, and materials, reducing the need for multiple specialized molds and lowering manufacturing costs.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3192947B1Replacement door handle

Publication Date: 2021.03.31 KIM DUCK HO

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AI summary

The present invention relates to a replacement door handle, and comprises: a connection member which has a groove with a certain depth formed therein so as to be coupled to a door lock; and a handle body which has a corresponding fitting portion formed therein so that the connection member can be fitted into and coupled to the fitting portion. Thereby, the present invention has the following effects: it is possible to replace or change a door handle, which is coupled to a door lock, with or to a variety of designs; it is possible to replace or change the door handle in a convenient and easy manner; and it is possible to use the door handle according to a user's preference or taste.