Tool-Free Garden Implement Change With Motor Shaft Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing garden machines require separate tools for changing detachable implements, which can be inconvenient or impossible when tools are not available, especially in remote locations.
Innovation Solution
A tool-free implement change mechanism that includes a motor shaft locking apparatus and an implement securing apparatus, allowing for manual or automatic engagement without separate tools, to facilitate the installation and removal of detachable implements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional tools (wrenches, sockets, ratchets) are used to attach and detach garden machine implements, then the connection strength and reliability are improved, but the time required for implement changes increases and operational efficiency decreases
Solution Approach 1:
The patent extracts the fastening function from traditional multi-tool systems and consolidates it into a single integrated quick-attach mechanism. The hitch assembly incorporates built-in latching components that perform both attachment and detachment functions, eliminating the need to extract and use separate wrenches, sockets, and ratchets for each operation.
Solution Approach 2:
The quick-attach mechanism performs preliminary positioning and alignment of the implement with the garden machine before final engagement. The design includes guide features and pre-aligned connection points that automatically position components correctly as the implement approaches, preparing the system for rapid secure attachment without manual adjustment.
2Reliability
If traditional tools and multiple steps are used for implement attachment, then the connection reliability is improved, but the device complexity and ease of operation deteriorate
Solution Approach 1:
The patent merges multiple separate tools (wrenches, sockets, ratchets) and multiple attachment steps into a single integrated quick-attach mechanism. The hitch assembly combines positioning, latching, and securing functions into one unified device that performs all operations through a single user action, reducing both tool count and procedural complexity while maintaining secure attachment.
Solution Approach 2:
The quick-attach mechanism is designed as a universal system that handles various implement types and attachment scenarios through a single standardized interface. The multi-functional design accommodates different implement weights and configurations while maintaining the same simple attachment procedure, eliminating the need for tool changes or procedural variations.
3Adaptability or versatility
If traditional multi-tool systems are used for implement changes, then the adaptability to different implements is improved, but the ease of operation and productivity decrease
Solution Approach 1:
The quick-attach mechanism employs a universal interface design that accommodates various implement types through a standardized connection system. The hitch assembly and implement mounting points are designed with consistent geometry and engagement features that work across different implement configurations, maintaining adaptability while simplifying the attachment process to a single standardized procedure.
Solution Approach 2:
The system incorporates preliminary alignment features and pre-configured connection points that automatically adapt to different implement sizes and types. As an implement approaches the hitch assembly, guide features and tapered surfaces automatically position the components for correct engagement, eliminating the need for manual adjustment or tool changes across different implement varieties.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Systems and methods which provide for tool-free detachable implement change without aid of separate tools are described. A tool-free implement change mechanism may comprise a plurality of apparatuses operable in cooperation to facilitate installation and/or removal of detachable implements with respect to a host garden machine without aid of separate tools. For example, a tool-free implement change mechanism may comprise a motor shaft locking apparatus and an implement securing apparatus. In operation according to embodiments, a motor shaft locking apparatus of embodiments may be engaged to prevent movement of motor shaft when tightening or loosening an implement securing apparatus used for affixing the detachable implement to the shaft assembly.