Canister Vacuum Roller With Air-Filled Tire for Noise Damping
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Solution Overview
Problem
Existing canister vacuum cleaners experience noise and material-damaging vibrations when navigating uneven floors and obstacles due to the transmission of forces through rollers, which are not effectively dampened by existing elastic coatings.
Innovation Solution
The vacuum cleaner features rollers with a hard hub and an air-filled, damping tire, along with an anti-twist device to prevent relative movement between the hub and tire, and a damped roller axis to absorb shocks and vibrations, enhancing noise reduction and vibration isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If rollers are made from plastic core with elastic material coating, then some vibration damping is achieved, but noise and material-damaging vibrations are still transmitted to the housing
Solution Approach 1:
The roller is constructed as a composite system with a hard plastic hub and an air-filled elastic tire, combining the structural integrity of rigid materials with the vibration-damping properties of elastic materials to reduce noise and vibration transmission while maintaining reliability
Solution Approach 2:
The roller incorporates an air-filled tire instead of a solid elastic coating, using the compressibility and damping characteristics of air to effectively absorb vibrations and reduce noise transmission to the housing
2Object-affected harmful factors
If air-filled tire is used for damping, then noise and vibration damping is improved, but relative movement between hub and tire can occur
Solution Approach 1:
The roller is divided into separate hub and tire components that can be independently manufactured and assembled, allowing the tire to be securely mounted on the hub with proper damping characteristics while maintaining structural integrity
Solution Approach 2:
The hub is designed with pre-formed collars that receive the tire in a form-fit manner before operation, preventing relative movement between hub and tire during driving while maintaining the damping benefits of the air-filled tire
3Stability of the object's composition
If hub and tire are securely connected, then relative movement is prevented, but assembly complexity increases
Solution Approach 1:
The hub collars are pre-formed with receiving structures that guide the tire into place during assembly, and the anti-twist device is designed to automatically engage the tire with the hub, simplifying the assembly process while ensuring secure connection
Solution Approach 2:
The anti-twist device with interlocking teeth automatically prevents relative movement between hub and tire upon assembly, eliminating the need for additional fastening operations or complex assembly procedures
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
This configuration effectively dampens driving noises and vibrations, preventing resonance and reducing wear, while allowing smoother navigation over obstacles by maintaining a secure fit between the hub and tire.
Implementation Method 1
the elastic tire is designed as an air-filled tire... achieves effective noise damping when the floor vacuum cleaner is being driven, and on the other hand, the transmission of noise from the vacuum cleaner fan to the floor and the formation of resonance associated therewith is also prevented
Implementation Method 2
the wheel disclosed there shows a cushioning tire having a multi-cell air chamber
Implementation Method 3
an anti-twist device is arranged between the hub and the tire... at least one collar and at least one radially directed sidewall of the tire have teeth that engage in one another
Implementation Method 4
at least one roller axis is mounted in a damped manner relative to the housing... additionally dampens the shocks and vibrations on the wheel - housing section
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The invention relates to a canister vacuum cleaner (1) with a housing which is designed to be mobile on rollers (4), the rollers (4) being rotatably mounted on roller axles (6) or held on rotatably mounted roller axles. In order to dampen driving noise and driving-related vibrations, it is proposed that at least one of the rollers (4) has a hard hub (40, 400) and a damping tire (43, 410), and that the elastic tire (43, 410) be an air-filled tire is trained.