Cam-Adjusted Appliance Wheels for Leveling on Uneven Floors
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Solution Overview
Problem
Household appliances often lose balance due to floor irregularities, leading to operational issues, and existing height adjustment mechanisms are not always user-friendly or efficient.
Innovation Solution
A household appliance design featuring at least two wheels with a central rod forming the rotational axis, a cam surface for height adjustment, and a motion transmitter that allows users to adjust the height without moving the appliance, using a cam surface and intermediary element configurations to support the weight and facilitate easy height changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional height adjustment mechanisms are used, then the appliance can be balanced on uneven floors, but the adjustment process requires moving the appliance which is inconvenient and time-consuming
Solution Approach 1:
The height adjustment mechanism is segmented into independent wheel assemblies, each with its own cam surface and rod system. This allows individual wheels to be adjusted separately while the appliance remains in place, eliminating the need to move the entire appliance for adjustment.
Solution Approach 2:
A cam surface acts as an intermediary element between the rod and the wheel mounting. The cam surface converts rotational motion of the rod into linear extension/retraction of the wheel, enabling height adjustment without moving the appliance body.
2Device complexity
If the rod directly contacts the cam surface, then the structure is simple, but the rod must support the entire body weight which increases stress and wear
Solution Approach 1:
The wheel case serves as an intermediary element that supports the body weight and transfers it to the ground through the wheel. The rod only needs to provide lateral adjustment force against the cam surface, significantly reducing the stress and wear on the rod while maintaining structural simplicity.
3Device complexity
If the wheel is directly mounted to the body, then the structure is simple, but the height cannot be adjusted without moving the appliance
Solution Approach 1:
The wheel mounting is made dynamic through the cam surface mechanism. The wheel's position relative to the appliance body can be continuously adjusted along the cam surface profile, allowing the appliance to adapt to different floor conditions while maintaining a simple overall structure.
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
Enables easy and precise height adjustment of household appliances to maintain balance on uneven floors without repositioning, ensuring stable operation and user convenience.
Implementation Method 1
a cam surface (6), housing the rod (4), inclined, on which the rod (4) moves by bearing on it or moving by bearing on the rod (4)
Data Source
Figure 1
Figure 2~4
Figure 5~6
AI summary
The present invention relates to a household appliance (1) the height adjustment of which can be done easily by means of a motion transmitter (5) that transmits the force exerted by the user.