Adjusting Device for Hand-Held Tool Module Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hand-held work devices, such as motor chainsaws, face challenges in adjusting and positioning work modules relative to their drive shafts, particularly in outdoor settings where standard tools are not readily available.
Innovation Solution
A modular adjustment device that serves dual functions: it allows for precise positioning and adjustment of work modules relative to the drive shaft and then covers the module, ensuring it remains with the device for use as a protective cover, thus eliminating the need for carrying additional tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If simple tools such as screwdrivers or pipes are used for adjusting the working module, then the adjustment can be performed with minimal equipment, but the positioning precision and reliability are insufficient
Solution Approach 1:
The patent introduces a specialized adjustment device as an intermediary tool between the simple screwdriver/pipe and the working module. This device includes positioning elements that engage with both the drive shaft and the working module, providing precise angular and radial positioning while maintaining ease of use in outdoor settings
Solution Approach 2:
The adjustment device allows for controlled changes in positional parameters (angular position and radial position) of the working module relative to the drive shaft. The device incorporates positioning elements that define specific angular positions and radial distances, enabling precise adjustment without requiring complex measurement equipment
2Measurement precision
If a dedicated adjustment device is used for positioning the working module, then positioning precision is improved, but the device complexity increases
Solution Approach 1:
The adjustment device is designed with multi-functionality to reduce overall system complexity. It serves as both an adjustment tool and a protective cover for the working module. The positioning elements are integrated into a compact structure that can be easily attached and removed, providing precise positioning without requiring a separate complex adjustment mechanism
Solution Approach 2:
The patent combines the adjustment function and the protective cover function into a single integrated device. The positioning elements for angular and radial adjustment are merged with the cover structure, eliminating the need for separate adjustment tools and reducing the overall complexity of the system
3Ease of operation
If the adjustment device is carried separately, then it is always available for positioning, but it is rendered useless after adjustment and requires additional carrying
Solution Approach 1:
The adjustment device is designed to perform multiple functions: it serves as the positioning tool during adjustment and then transforms into a protective cover for the working module. This multi-functionality ensures the device remains useful throughout the entire operational cycle, from adjustment to normal operation, eliminating the need to carry separate tools
4Productivity
If the working module is adjusted in outdoor settings, then the tool can be used immediately, but standard workshop tools are not available
Solution Approach 1:
The adjustment device serves as a self-contained intermediary tool that brings workshop-level positioning capability to outdoor settings. It includes integrated positioning elements for angular and radial adjustment that do not require external measurement tools or specialized equipment, enabling immediate adjustment in the field
Solution Approach 2:
The adjustment device is designed to be self-sufficient for the adjustment task. It includes all necessary positioning elements and adjustment mechanisms integrated into a single portable unit that can be operated without external tools or equipment, enabling users to perform precise adjustments in outdoor settings independently
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to an adjustment device for the relative positioning of a working module (2) relative to a drive shaft (4) of a hand-held tool (3) rotating about a rotational axis (50) for driving the working module (2). The adjustment device (1) comprises a module positioning device (10) for positioning the adjustment device (1) relative to the working module (2). The adjustment device (1) comprises a shaft positioning device (20) for positioning the adjustment device (1) relative to the drive shaft (4). The adjustment device (1) is designed to be suitable for covering the working module (2), in particular for covering a gearbox (5) of the working module (2).