Brush Vacuum Side Switch Layout to Prevent Housing Damage
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Solution Overview
Problem
The existing design of switches on brush vacuum cleaners often leads to damage due to the operator's body weight causing stress on the upper side of the appliance during operation, resulting in housing breakage and impairment.
Innovation Solution
The switch is positioned on the side wall of the brush set for foot operation, with a control surface that projects outward in the switched-off position and integrates flush into the side wall without overhang in the switched-on position, using latching elements for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the switch is arranged on the upper side of the brush set for foot operation, then the switching operation is convenient, but the housing is damaged due to operator body weight stress
Solution Approach 1:
The switch is relocated from the upper side (vertical dimension) to the lateral side wall (horizontal dimension) of the brush set. This dimensional relocation allows foot operation to be performed on the side wall without transmitting body weight stress to the upper housing, thereby resolving the contradiction between operational convenience and housing strength.
2Ease of operation
If the control surface projects outward in the switched-on position, then the switch is easily accessible, but hooking damage occurs during cleaning
Solution Approach 1:
The control surface is designed to be movable between two positions: projecting outward in the switched-off position for easy foot access, and retracted flush with the side wall in the switched-on position to eliminate hooking hazards. This dynamic repositioning resolves the contradiction between accessibility and damage prevention.
Solution Approach 2:
The control surface automatically retracts into the side wall surface when the switch is activated, preemptively eliminating the protruding element that could cause hooking damage during subsequent cleaning operations. This preliminary anti-action prevents harm before it can occur.
3Object-affected harmful factors
If the control surface is flush with the side wall in switched-on position, then hooking damage is avoided, but the switch-off mechanism is compromised
Solution Approach 1:
The control surface dynamically changes position based on switch state: retracted flush with the side wall during operation to prevent hooking, and projecting outward when switched off to enable easy foot access for the next operation. This resolves the contradiction between damage prevention and operational capability.
Data Source
AI summary
A brush vacuum cleaner having a brush set facing the floor with a driven brush roller, wherein the brush set can be connected via a pivotable connecting element in the form of a connecting piece for a filter housing attachable to a handle having a hand grip. The brush set accommodates an electric motor for a suction fan and for the drive of the brush roller. An electrical switch is provided for switching the electric motor on and off which is disposed on the side wall as a lateral flank of the brush set in the form of a foot operated switch. The switch with its external control surface projects outwards with respect to the side wall in the switched-off position whereas in the switched-on position the control surface ends with neighboring or adjacent surface sections of the side wall without overhang.