Surface Maintenance Machine Cleaning Tool Quick Alignment Mechanism
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Solution Overview
Problem
The process of attaching and detaching cleaning tools on surface maintenance machines is labor-intensive and often difficult due to poor visibility, ergonomics, and the need to overcome spring-loaded clips, leading to potential misalignment and increased effort.
Innovation Solution
A cleaning tool assembly with a tool adapter and aligning receptacle that allows for quick alignment and secure attachment, featuring a spring-loaded clip that reduces the force required for locking and includes a chamfered surface for guiding the hub into position, facilitating coaxial alignment and easy tool interchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operator manually positions and aligns the cleaning tool with the hub using hands, then the cleaning tool can be attached to the hub, but the process becomes labor-intensive and difficult due to poor visibility and ergonomics
Solution Approach 1:
The aligning receptacle is designed to automatically guide and receive the hub into proper alignment with the cleaning tool. The chamfered surface on the receptacle actively engages with the hub to self-align components, eliminating the need for manual positioning and alignment operations by the operator.
Solution Approach 2:
The aligning receptacle with chamfered surface is pre-configured to guide the hub into the correct position before the locking mechanism engages. This preliminary alignment action prepares the components for easy attachment, reducing both operator effort and attachment time.
2Reliability
If the spring-loaded clip is designed with sufficient spring force to securely lock the cleaning tool, then the cleaning tool is firmly retained, but the operator must apply large force to overcome the spring force during alignment
Solution Approach 1:
The attachment process is divided into two distinct phases: alignment and locking. The aligning receptacle handles the alignment phase with low force requirements, while the spring-loaded clip handles the locking phase with high retention force. This segmentation allows the spring force to be optimized for retention without compromising attachment ease.
Solution Approach 2:
The aligning receptacle acts as an intermediary mechanism between the operator and the spring-loaded clip. It guides the hub into position before the clip engages, mediating the interaction so that the operator does not directly confront the full spring force during alignment.
3Ease of operation
If the operator works in the confined space under the surface maintenance machine, then the cleaning tool can be attached, but poor visibility and reach make successful alignment difficult
Solution Approach 1:
The aligning receptacle with its chamfered surface performs the alignment function automatically without requiring visual inspection or manual adjustment by the operator. The geometry of the receptacle and hub self-align through mechanical guidance, making the process independent of operator visibility and reach.
Data Source
AI summary
A cleaning head assembly for a surface maintenance machine comprising a cleaning tool having a tool adapter, a driver adapted to provide a generally rotational motion to the cleaning tool to clean the floor surface, the driver being releasably connected to the tool adapter of the cleaning tool by a hub, and an aligning receptacle coupled to the tool adapter of the cleaning tool and positioned between the hub and the tool adapter, the aligning receptacle having an receptacle opening for receiving the hub, wherein the aligning receptacle is adapted to guide and matingly seat the hub into the receptacle opening and thereby engage the cleaning tool to the driver such that the cleaning tool and the driver are rotationally aligned and a rotational motion of the driver is transferred to the cleaning tool by the hub.