Cleaning Head Brush Interlock for Safe Panel-Open Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Surface cleaning apparatuses, such as vacuum cleaners, face the challenge of cleaning brushes becoming tangled with debris like hair, which can lead to user safety hazards when attempting to remove the brush, as the rotating brush can cause injury if accidentally actuated during maintenance.
Innovation Solution
A surface cleaning head design featuring a removable panel and a panel open detector that prevents the brush drive member from operating when the panel is opened, allowing safe access for cleaning or replacement of the brush, thereby preventing accidental brush rotation and user injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the brush is made removable for cleaning and replacement, then ease of maintenance is improved, but user safety deteriorates due to risk of accidental brush rotation
Solution Approach 1:
A panel open detector is introduced as an intermediary component between the removable panel and the brush drive mechanism. The detector monitors panel status and controls the drive mechanism accordingly, allowing brush removal while preventing accidental activation. This mediator resolves the contradiction by enabling maintenance access without compromising user safety.
2Object-affected harmful factors
If a panel open detector and interruption member system is added, then user safety is improved, but device complexity increases
Solution Approach 1:
The safety control function is extracted as a separate, modular panel open detector system with an interruption member, rather than integrating safety logic into the main brush drive mechanism. This extraction allows the safety feature to be added without significantly complicating the core cleaning function, resolving the contradiction between safety and complexity.
Data Source
AI summary
A surface cleaning head is disclosed. The surface cleaning head includes a housing, a brush system, and a panel open detector. The brush system includes a brush and a brush drive member drivingly connected to the brush. The brush is moveably mounted in the brush chamber and removably from the brush chamber. A panel open detector is operatively connected to a brush interruption member and the brush interruption member is operatively connected to the brush system. When the panel open detector detects that a panel on the housing is opened, the brush interruption member interacts with the brush system to prevent the brush drive member driving the brush.