Accessory Tool Locking Assembly for Quick Surface Cleaner Changeover
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional outdoor surface treating apparatuses are cumbersome and inconvenient to use due to time-consuming and difficult assembly, disassembly, cleaning, and maintenance, especially when switching between different cleaning operations, as they often require tools and specific handling procedures.
Innovation Solution
An outdoor surface treating apparatus with a removably connected accessory tool assembly featuring a biasing element that automatically locks into place, allowing for easy attachment and detachment without tools, and a drive unit that couples with the accessory tool assembly for efficient surface treatment, including patio and paver surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional outdoor surface treating apparatuses are used with fixed cleaning modules, then the apparatus can perform dedicated cleaning operations, but the apparatus is difficult to assemble, disassemble, clean, repair, and maintain, and cannot be converted for different surface treatment applications
Solution Approach 1:
The cleaning apparatus is divided into modular components: a handle assembly, a head assembly, and interchangeable cleaning modules. Each module can be independently attached or detached, enabling the apparatus to adapt to different cleaning applications while simplifying maintenance and repair of individual components.
Solution Approach 2:
The engagement mechanism incorporates a movable second engagement arrangement that transitions between extended and retracted positions. This dynamic design allows the cleaning modules to be easily attached and detached without tools, while maintaining secure connection during operation, thus balancing versatility with operational reliability.
2Reliability
If replacement mechanisms require the use of another tool to attach and detach the cleaning module, then the mechanism can provide secure connection, but the operation becomes time-consuming and cumbersome
Solution Approach 1:
The engagement mechanism is designed to be self-operating through a spring-biased movable engagement arrangement. When the cleaning module is inserted, the spring automatically pushes the second engagement arrangement into the extended position to lock the module securely. To detach, the user simply pulls the module outward, and the spring automatically resets the engagement arrangement to the retracted position, eliminating the need for tools or manual manipulation of locking mechanisms.
3Reliability
If replacement mechanisms require the user to rest the apparatus on the floor and use both hands to move the cleaning module and actuate the locking/unlocking member, then the mechanism can provide secure connection, but the operation is time-consuming and inconvenient
Solution Approach 1:
The spring-biased engagement mechanism performs the locking and unlocking functions automatically. The spring continuously exerts force to maintain the second engagement arrangement in the extended locked position during operation, and automatically returns it to the retracted position when the module is pulled outward for removal. This eliminates the need for manual actuation of locking/unlocking members and reduces the time required for module replacement.
Solution Approach 2:
Instead of requiring the user to actively engage a locking mechanism to secure the module, the design inverts the approach: the module is naturally held in place by the spring-biased engagement arrangement, and removal is achieved by simply overcoming the spring force through outward pull. This inversion simplifies the user's task from complex manual locking to simple pull-release operation.
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
The solution enables quick and tool-free conversion between different cleaning operations, improving ease of use and maintenance, reducing operational time, and enhancing versatility and cost-effectiveness.
Implementation Method 1
the accessory tool assembly includes a biasing element for biasing the second engagement arrangement into the extended position
Data Source
AI summary
An outdoor surface treating apparatus having a body having a handle and a head arranged to be removably connected with an accessory tool assembly. The head includes a first engagement arrangement for releasably engaging with a second engagement arrangement in the accessory tool assembly. A drive unit, arranged in the head, includes a first coupling member for drivingly coupling with a second coupling member in the accessory tool assembly. The first engagement arrangement is fixed. The second engagement arrangement is movable between an extended position and a retracted position. The accessory tool assembly includes a biasing element for biasing the second engagement arrangement into the extended position. As the accessory tool assembly is aligned with the head, in particular when the first engagement arrangement is aligned with the second engagement arrangement, and is moved along a movement axis into engagement with the head, the second engagement arrangement first moves over the first engagement arrangement against the bias then returns to the extended position and locks with the first engagement arrangement while the first coupling member couples with the second coupling member.