Upright Vacuum Wand Lock and Release Mechanism for Easier Alignment
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Solution Overview
Problem
Existing surface cleaning apparatuses face challenges in efficiently managing the removal and reinstallation of above-floor cleaning wands, which can be cumbersome and inconvenient for users, particularly in terms of alignment and height during operation.
Innovation Solution
A surface cleaning apparatus design featuring a removable above-floor cleaning wand with a wand release actuator and lock mechanism, allowing for easier alignment and installation by reducing the vertical extent of the upper portion, and incorporating a flexible air flow conduit for airflow communication between the wand and the surface cleaning unit, along with stabilizing features to support mechanical stresses during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the upper portion has a larger vertical extent to accommodate the lock mechanism, then the locking reliability is improved, but the ease of operation deteriorates due to difficult alignment and reinsertion
Solution Approach 1:
A longitudinally extending transmission member acts as an intermediary between the wand release actuator and the locking member. This transmission member translates the actuator's motion to control the locking member's engagement with the upper portion, enabling reliable locking while keeping the actuator accessible to users.
Solution Approach 2:
The locking mechanism is designed so that the locking member engages with the upper portion in a direction perpendicular to the wand's longitudinal axis. This dimensional change allows the lock to be positioned lower on the wand, improving accessibility while maintaining locking reliability through a different engagement geometry.
2Device complexity
If the wand lock mechanism is integrated into the upper portion, then the device complexity is reduced, but the ease of operation worsens due to fixed positioning and alignment difficulties
Solution Approach 1:
The locking system is segmented into three main components: the locking member integrated into the upper portion, the wand release actuator on the wand, and the transmission member connecting them. This segmentation allows the actuator and transmission member to be positioned for ease of operation while the locking member remains integrated into the upper portion structure.
Solution Approach 2:
The transmission member is designed to be movable along the wand's longitudinal axis, allowing it to dynamically adjust its position during engagement and disengagement. This dynamic positioning facilitates easier alignment and operation while maintaining the integrated nature of the locking mechanism.
Data Source
AI summary
An upright surface cleaning apparatus is has a portable surface cleaning unit removably mounted to an upper portion that is pivotally mounted to a surface cleaning head. The surface cleaning apparatus is operable in a floor cleaning mode in which the portable surface cleaning unit is mounted to the upper portion and the above floor cleaning wand is inserted in an open upper end of the upper portion. The surface cleaning apparatus is also operable in an above floor cleaning mode in which the portable surface cleaning unit is mounted to the upper portion and the above floor cleaning wand is removed from the open upper end of the upper portion. When the surface cleaning apparatus is in the floor cleaning mode, the first mounting members of the portable surface cleaning unit engage the wand mounting members.