Multipurpose Tool Handle Segmentation and Guard Design
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Solution Overview
Problem
Multipurpose tools face challenges in providing easy access to individual tool members due to their compact and foldable design, which can lead to difficulty in identification and unfolding, especially as the springs that bias the tool members into an open position may wear out over time, reducing functionality.
Innovation Solution
The design includes handles with a floor having a nonlinear edge and notches to facilitate the exposure and unfolding of tool members, along with visible springs and eccentric cam members to provide tactile feedback, and additional features like icons or designations to aid in selection, and a secure guard for tool members to prevent accidental closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the multipurpose tool is designed to be foldable and compact, then the overall size and weight are reduced, but the accessibility and visibility of individual tool members deteriorate
Solution Approach 1:
The handle is segmented into multiple compartments, each dedicated to storing specific tool members. This segmentation allows each tool member to have its own designated space with visible identification, making it easy to locate and access the desired tool without having to search through a cluttered single compartment.
Solution Approach 2:
Different regions of the handle are designed with different properties: some compartments have transparent or open designs for visibility, others have specific opening mechanisms tailored to the tool type. Each local area is optimized for its specific function, balancing compactness with accessibility.
2Adaptability or versatility
If multiple tool members are stored within the handles, then the tool maintains versatility, but the visibility and identification of individual tool members becomes difficult
Solution Approach 1:
Tool members are assigned different colors or colored identification elements that are visible through the handle compartments. This color-coding system allows users to quickly identify and distinguish between different tool members without fully exposing them, maintaining both versatility and visibility.
Solution Approach 2:
The handle is divided into multiple compartments, each dedicated to specific tool members. This segmentation creates organized storage spaces where each tool member is visible and identifiable, preventing the clutter and confusion that would occur with undifferentiated storage.
3Ease of operation
If spring-loaded mechanisms are used to bias tool members toward open position, then ease of operation is improved, but reliability deteriorates due to spring wear over time
Solution Approach 1:
The spring mechanism is extracted from its traditional enclosed position and made accessible through the handle design. Users can easily access and replace worn springs without disassembling the entire tool, maintaining the automatic opening function while allowing for simple maintenance to preserve reliability.
Solution Approach 2:
The design enables users to perform their own maintenance by easily accessing and replacing worn springs. This self-service capability allows users to maintain the tool's reliability by replacing springs when they wear out, rather than requiring professional service or tool disposal.
4Volume of moving object
If tool members are folded into compact handles, then portability is improved, but the risk of accidental closure increases
Solution Approach 1:
The handle design incorporates preliminary protective measures such as guards, covers, or positioning features that prevent tool members from accidentally closing or deploying. These features are built into the compact structure, providing protection without significantly increasing the overall size.
Solution Approach 2:
Flexible guards or thin film covers are used to protect tool members while maintaining compactness. These flexible elements can cover the tool members in the closed position to prevent accidental activation, yet do not significantly increase the tool's volume when folded.
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
This configuration enhances user accessibility and identification of tool members, reduces the likelihood of accidental closure, and allows for easy replacement of worn-out springs, maintaining tool functionality and compactness.
Implementation Method 1
the springs that bias the tool members into an open position
Implementation Method 2
eccentric cam members to provide tactile feedback
Data Source
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Figure 5~6
AI summary
A multipurpose tool is provided that is configured to provide ready access to individual tool members. In this regard, the tool may facilitate the identification and selection of a respective tool member and the subsequent unfolding of the tool member. The tool is also provided that has a structurally secure guard for one or more of the tool members, such as a knife blade.