Handheld Vacuum Weight Layout for Balanced Grip Control
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Solution Overview
Problem
Conventional hand-held vacuum cleaners are tiring and uncomfortable to use due to the center of mass being forward of the handgrip, requiring excessive effort to maintain orientation.
Innovation Solution
A hand-held vacuum cleaner design with the airflow generator adjacent the first end of the handgrip and the power source adjacent the second end, distributing weight evenly around the user's hand for easier manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the motor and fan assembly and power source are arranged forwardly of the handgrip, then the components can be compactly arranged, but the centre of mass is located forwardly of the handgrip resulting in the vacuum cleaner being tiring and uncomfortable to use
Solution Approach 1:
The patent positions the power source (acting as a counterweight) at the rear end of the main body, opposite to the forwardly positioned motor and fan assembly. This creates a balanced center of mass that aligns with or is slightly behind the handgrip, counteracting the forward weight bias and reducing the torque required by the user to maintain control, thereby improving ease of operation without compromising compact component arrangement
2Ease of operation
If the handgrip is arranged transversely to the longitudinal axis of the cylindrical main body, then the user gets a stronger wrist position, but the heavy components are located forwardly of the handgrip requiring additional effort to maintain orientation
Solution Approach 1:
The transverse handgrip arrangement is retained for optimal wrist positioning, but the power source is strategically placed at the rear end of the main body to counterbalance the forwardly positioned motor and fan assembly. This creates a balanced weight distribution that reduces the moment arm and consequently the force required by the user to maintain the vacuum cleaner in the desired orientation during operation
Data Source
AI summary
A hand-held cleaning appliance includes a suction conduit, an airflow generator for generating an airflow along the suction conduit, a separating apparatus in communication with the suction conduit for separating dirt and dust from the airflow, a power source for supplying power to the airflow generator and a handgrip enabling a user to maneuver the hand-held cleaning appliance. The handgrip has a first end and a second end. The airflow generator is arranged directly adjacent the first end of the handgrip and the power source is arranged adjacent the second end of the handgrip. By providing a hand-held vacuum cleaner with such an arrangement, the hand-held vacuum cleaner is easier and more comfortable to manipulate in use.