Ring-Shaped Grip Layout for Vacuum Blower Vibration Decoupling
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Solution Overview
Problem
Hand-guided portable vacuum/blower devices face ergonomic challenges due to uneven weight distribution and restricted vibration decoupling when using existing grip designs, leading to fatigue and reduced handling precision.
Innovation Solution
A ring-shaped grip part is positioned perpendicularly to the blower's axis of rotation, with handles on either side of the motor and blower units, allowing for balanced weight distribution and improved vibration decoupling, enabling ergonomic handling in both blower and vacuum modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the grip part is laterally arranged relative to the blower axis, then the device can be held upright, but the antivibration elements are pretensioned which restricts their vibration-decoupling effect
Solution Approach 1:
The grip part is positioned asymmetrically on the motor unit with its plane perpendicular to the blower axis, creating a configuration where the antivibration elements are not subjected to pretensioning forces. This asymmetric placement allows the antivibration elements to remain in their optimal decoupling state while still enabling upright handling.
Solution Approach 2:
The antivibration elements serve as intermediaries between the grip part and the motor unit, positioned to transmit only vertical weight forces without lateral pretensioning. This mediator function allows them to effectively decouple vibrations while supporting the upright carrying position.
2Device complexity
If a single handle is provided on one side, then the structure is simple, but different grip positions are not available for different operating modes reducing ergonomics
Solution Approach 1:
The ring-shaped grip part with handles on opposite sides serves multiple functions: it provides balanced weight distribution for upright blower operation, enables two-handed control for vacuum operation, and allows flexible hand positioning for different operating modes. This multi-functional design achieves ergonomic versatility without significantly increasing structural complexity.
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
Facilitates fatigue-free handling and enhanced vibration decoupling, allowing for precise guidance and safe operation in various positions, with reduced operator fatigue and improved vibration damping.
Implementation Method 1
a grip part (5) that is connected by means of anti-vibration elements (6) to the motor unit (1) and the blower unit (3)
Data Source
AI summary
A hand-guided portable vacuum/blower device has a blower unit with a blower and a motor unit with a drive motor. The blower unit is rigidly connected to the motor unit. The drive motor is drivingly connected to the blower. A grip part is connected with antivibration elements to the motor unit and the blower unit. The grip part is at least approximately ring-shaped and has a first handle. The grip part is arranged in a plane that is positioned perpendicularly to an axis of rotation of the blower and, when viewed in the direction of the axis of rotation, is located between the motor unit and the blower unit.