Dishwasher Basket Lifting Lever for Collision-Free Loading
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Solution Overview
Problem
Household dishwashers require users to kneel or bend to load or unload lower baskets, which is inconvenient and may lead to collisions with other baskets during movement.
Innovation Solution
A lifting mechanism with a pivoting lifting lever and a guide mechanism featuring a guide contour that arrests the washing item receptacle in specific positions, allowing it to be raised and lowered without additional components, preventing collisions and simplifying the design for cost-effective production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lower basket is arranged in the vicinity of the bottom of the rinsing container, then the dishwasher can accommodate multiple washing item receptacles stacked vertically, but the user must kneel or bend down to load or unload the lower basket
Solution Approach 1:
The lifting mechanism transforms the static lower basket into a dynamic component that can be raised to a convenient height for user interaction, then lowered back to its storage position, allowing the basket to adapt between two functional states
Solution Approach 2:
The lifting lever acts as an intermediary mechanical device between the user and the lower basket, providing the force and motion transformation needed to raise and lower the basket without requiring the user to bend or kneel
2Reliability
If additional components are added to the lifting mechanism to prevent collisions during movement, then collision prevention is improved, but the device complexity and production cost increase
Solution Approach 1:
The guide contour is integrated directly into the lifting lever structure, merging the guiding function and the lifting function into a single component, thereby preventing collisions without adding separate guide rails or arresting mechanisms
Solution Approach 2:
The lifting lever serves multiple functions simultaneously: it provides the lifting force, guides the basket along a collision-free path, and arrests the basket at the correct position, eliminating the need for dedicated components for each function
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 easy loading and unloading of washing item receptacles by raising them to a comfortable height, preventing collisions and reducing the complexity of the lifting mechanism, thus enhancing user convenience and reducing production costs.
Implementation Method 1
the lifting mechanism comprises a lifting lever connected in a pivoting manner to the rinsing container and the guide mechanism
Implementation Method 2
a guide contour which is designed to arrest the washing item receptacle in the end position when the washing item receptacle is raised from the starting position to the end position and in the end state when said washing item receptacle is lowered from the end position to the starting position
Data Source
AI summary
A household dishwasher includes a rinsing container, a washing item receptacle, a guide mechanism for moving the washing item receptacle from a starting state within the rinsing container to an end state outside the rinsing container and vice versa, and a lifting mechanism for raising the receptacle from a starting position to an end position and to lower it from the end position to the starting position. The lifting mechanism includes a lifting lever pivotably connected to the rinsing container and the guide mechanism and having a guide contour for arresting the receptacle in the end position when lifted from the starting position to the end position and in the end state when lowered from the end position to the starting position so that the receptacle is only movable from the starting state to the end state in the starting position and vice versa.