Integrated Case Multiple Tool Leverage Design
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Solution Overview
Problem
Existing multiple tools for motorcycle and bicycle maintenance are bulky, heavy, and require a certain length for leverage, making them cumbersome to carry and use, while their cases often provide inadequate protection and leverage during operation.
Innovation Solution
A lightweight multiple tool with an integrated carry case that includes a grip portion for manual leverage, magnetic retention, and specific cutouts for implements like chain breakers and spoke wrenches, allowing for optimal leverage and compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the multiple tool is made longer to achieve sufficient leverage, then the leverage is improved, but the weight and size increase making it cumbersome to carry
Solution Approach 1:
The patent merges the carry case and the multiple tool into a single integrated unit. The tool assembly is housed within the carry case, which also serves as the handle for manual operation. This integration eliminates the need for separate tool bodies and cases, reducing overall weight while maintaining leverage through the extended grip portion that protrudes from the case.
Solution Approach 2:
The patent repositions the leverage arm from a horizontal extension to a vertical protrusion from the carry case. The grip portion extends perpendicular to the main body of the case, allowing users to grasp and rotate the tool assembly vertically. This dimensional change enables sufficient leverage without requiring the tool to be excessively long in the traditional sense, thus reducing weight.
2Weight of moving object
If the multiple tool is made shorter to reduce weight, then the weight is reduced, but the leverage is insufficient for effective operation
Solution Approach 1:
The patent employs a rotatable tool assembly that can be dynamically positioned within the carry case. The tool assembly rotates on an axis relative to the carry case, allowing the user to adjust the angle and position of the implements during operation. This dynamic positioning enables effective leverage with a more compact tool length, as the user can optimize the rotational angle to achieve the necessary mechanical advantage.
3Reliability
If the carry case is designed to protect the tool, then the protection is improved, but the complexity and size of the case increase
Solution Approach 1:
The carry case is designed to be an integral part of the tool assembly rather than a separate protective shell. The case incorporates the grip portion, retention means, and housing for the tool assembly in a single unified structure. This merging of protective and functional elements provides adequate protection without adding unnecessary complexity, as the case itself becomes the handle and protective enclosure simultaneously.
4Ease of operation
If the multiple tool implements are made larger for better operation, then the ease of operation is improved, but the size and encumbrance increase
Solution Approach 1:
The tool assembly is designed to rotate dynamically within the carry case, allowing the implements to be positioned at optimal angles for operation. The rotatable mechanism enables users to access and operate the implements with greater ease despite their compact size, as the rotation provides the necessary movement range and operational leverage without requiring the implements to be physically larger.
Data Source
AI summary
A multiple tool with an integrated case is described. The multiple tool includes a tool assembly that includes a first pivot on which are articulated a plurality of implements, each implement rotatable from an inactive position of minimum encumbrance to at least a working position, and a carry case for housing the tool assembly. The carry case includes at least a grip portion for manually holding the tool assembly with at least one of the implements in a working position.