Universal Weight Fork with Interchangeable Adapters

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Solution Overview

Problem

Existing handling tools for button-shaped test weights require multiple sizes and are cumbersome to use, especially for weights above 500 grams, posing challenges in precision and ease of handling due to the need for different tools and increased risk of damage or contamination.

Innovation Solution

A versatile handling tool with two fork ends of different nominal widths and interchangeable adapters, allowing for the secure handling of four different test weights without the need for multiple tools, featuring cup-shaped indentations for a form-fit grip and a metal core encased in plastic for protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple separate weight forks are used for different test weights, then each test weight can be handled with a precisely matched tool, but the device complexity increases and the ease of operation decreases due to needing to manage multiple tools

Engineering Contradiction:
Improveadaptability to different test weightsVSAvoidnumber of handling tools
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The weight fork is designed with a universal structure that can handle multiple test weights through interchangeable adapters. The main fork body remains constant while adapters with different nominal widths are attached to accommodate various button diameters, allowing one tool to perform multiple functions that previously required separate tools for each weight size.

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

Solution Approach 2:

The handling tool is segmented into a main fork body and separate adapter components. Each adapter is designed for a specific button diameter range and can be independently attached or removed from the fork ends. This segmentation allows the system to adapt to different test weights without requiring completely different tools for each weight size.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If multiple separate weight forks are used for different test weights, then each test weight can be handled precisely, but the ease of operation worsens due to increased user experience demands and tool management

Engineering Contradiction:
Improveprecision of handlingVSAvoidease of handling
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The handling tool incorporates dynamic adaptability through interchangeable adapters that can be quickly attached and removed from the fork ends. This allows the tool to dynamically adjust its nominal width to match the specific test weight being handled, maintaining precision while simplifying operation since the user works with a single fork body and only needs to swap adapters when changing weight sizes.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If multiple separate weight forks are used, then each tool can be optimized for its specific weight, but the loss of time increases due to needing to switch between different tools

Engineering Contradiction:
Improveprecision of handlingVSAvoidtool switching time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system prepares multiple adapters in advance, each optimized for specific button diameter ranges. These adapters are kept ready for quick attachment to the fork ends, eliminating the need to switch between entirely different tools. The preliminary preparation of specialized adapters maintains precision handling while significantly reducing the time loss associated with tool switching.

Inventive Principle:
Principle #10Preliminary action

4Device complexity

If a single handling tool is used for multiple test weights, then the device complexity decreases, but the manufacturing precision may worsen due to the need to accommodate different sizes

Engineering Contradiction:
Improvenumber of handling toolsVSAvoidprecision of handling
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The adapters serve as intermediary components between the standardized fork body and the various test weight buttons. Each adapter is precisely manufactured to match specific button diameter ranges, while the fork body provides a universal mounting structure. This intermediary approach allows a single fork design to maintain high precision across multiple weight sizes without requiring custom-fitted tools for each weight.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2936088B1Tool and box for calibration weights
Publication Date: 2016.11.02 SARTORIUS LAB INSTR GMBH & CO KG
  • EP2936088B1 patent drawingFigure 1
  • EP2936088B1 patent drawingFigure 2~3
  • EP2936088B1 patent drawingFigure 4~6

AI summary

A weight box (10) having a plurality of test weights (12 to 18) comprises a weight fork (28), the opposite fork ends (32, 34) of which are associated with different test weights. The nominal widths of the fork ends can be reduced using individual adapters.