Integrated Marker Eraser Holder Wrist Rotation Mechanism

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Solution Overview

Problem

Users of whiteboards face inefficiencies when trying to write and erase simultaneously, as they need to put down the marker or use both hands, which wastes time and can result in soiled hands or the use of additional materials if an eraser is not nearby.

Innovation Solution

A handheld device that integrates a dry-erase marker holder with an ergonomically sloped eraser portion, allowing users to write and erase with a single hand by simply rotating their wrist, and includes features like adjustable angles and comfortable grips for ergonomic use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a separate eraser and marker are used, then erasing and writing functions are available, but the user must put down the marker or use both hands, wasting time and reducing productivity

Engineering Contradiction:
Improveease of operationVSAvoidproductivity
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent combines the marker holder and eraser into a single integrated device that can be held in one hand. The marker is positioned in the lower portion and the eraser in the upper portion, allowing the user to write and erase without putting down the device or using both hands, thus resolving the contradiction between ease of operation and productivity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The holder includes an adjustable mechanism that allows the user to change the angle between the marker and eraser portions. This dynamic adjustment capability enables the device to adapt to different writing and erasing needs, improving both ease of operation and productivity by maintaining optimal ergonomics throughout use

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the eraser is not near the lecturer, then the lecturer must walk to retrieve it or use hands to erase, but this results in soiled hands or use of additional materials

Engineering Contradiction:
Improveease of operationVSAvoidsoiled hands
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

By integrating the eraser directly onto the marker holder, the device ensures the eraser is always within reach of the user's hand. This eliminates the need to walk to retrieve a separate eraser or use hands to erase the board, thus preventing soiled hands and improving ease of operation

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated holder acts as an intermediary that brings the eraser function directly to the user's hand, eliminating the gap between the user and the eraser tool. This mediator approach ensures the eraser is always accessible without requiring the user to reach for separate materials

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If both hands are occupied with marker and eraser, then writing and erasing can be done simultaneously, but the user cannot use hands for other purposes like holding books or using laser pointer

Engineering Contradiction:
ImproveproductivityVSAvoidadaptability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent merges the marker and eraser into a single handheld device, allowing both functions to be performed with one hand. This frees the other hand for additional tasks such as holding books, using a laser pointer, or gesturing, thus simultaneously improving productivity and adaptability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated device provides multiple functions (writing and erasing) in a single tool that can be operated with one hand. This multi-functionality allows the user to maintain productivity while keeping the other hand available for various other purposes, enhancing both productivity and adaptability

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11203222B2Marker, stylus and eraser holder
Publication Date: 2021.12.21 WRIGO LLC
  • US11203222B2 patent drawing
  • US11203222B2 patent drawing
  • US11203222B2 patent drawing

AI summary

As device adapted to hold accessories is disclosed. The device may be adapted to hold one or more erasers, one or more markers, one or more styluses and other accessories. The one or more erasers may include an offset angle compared to the one or more markers. The one or more erasers and/or the one or more markers may be removable and interchangeable.