Kitchen Tool Drawer Base Locking for Secure Closed Position
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Solution Overview
Problem
Existing kitchen appliance tool drawers are not securely held in their closed position during transport or operation, risking accidental opening and potential user injury, and are costly to manufacture due to the use of hinges or elastic elements that wear out quickly.
Innovation Solution
A kitchen appliance with a tool drawer featuring a locking mechanism integrated into the base that engages with a counter-means on the housing, eliminating the need for additional elastic elements and providing a secure, cost-effective solution that ensures the drawer cannot accidentally open, while allowing easy access and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic elements are used to secure the drawer, then the drawer can be held in position, but the elastic elements wear out quickly and reliable positioning cannot be guaranteed
Solution Approach 1:
The patent removes the elastic element from the drawer assembly entirely and relocates the closing function to a separate closing device that engages with the drawer. This extraction eliminates the wear problem of elastic elements while maintaining the drawer positioning function through a different mechanism that does not degrade over time.
Solution Approach 2:
The patent introduces a closing device as an intermediary component between the drawer and the housing. This closing device acts as a mediator that provides the closing function without requiring elastic elements to be integrated into the drawer structure, thereby solving the wearout issue while maintaining reliable positioning.
2Reliability
If hinges are used to close the drawer, then the drawer can be secured, but the production cost increases and additional production steps are required
Solution Approach 1:
The patent extracts the closing function from the traditional hinge mechanism and implements it through a simplified closing device that engages directly with the drawer. This eliminates the need for complex hinge assemblies and reduces the number of production steps required.
Solution Approach 2:
The patent employs a simple closing device that can be manufactured more economically than hinges. While the closing device may have a limited service life, its low cost and simplicity make it economically advantageous compared to expensive hinge mechanisms, aligning with the principle of using cheaper components when appropriate.
3Ease of operation
If the drawer is designed to be easily accessible, then user convenience is improved, but the drawer may accidentally open during transport or operation
Solution Approach 1:
The patent implements a dynamic closing mechanism where the closing device can be easily actuated by the user to open or close the drawer, yet automatically engages to secure the drawer in the closed position during transport or operation. This dynamic behavior allows the drawer to be both accessible and secure depending on the operational state.
Solution Approach 2:
The closing device provides tactile and audible feedback to the user when the drawer is properly closed and locked. This feedback mechanism ensures the user knows the drawer is securely closed, preventing accidental opening while maintaining ease of operation through clear user interaction cues.
Data Source
Figure 1
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AI summary
The present invention relates to a kitchen appliance having a tool drawer, wherein the kitchen appliance comprises at least one locking means for locking the tool drawer, wherein the locking device is arranged in a bottom of the tool drawer and in a locked state of the tool drawer engages with a counter means on a housing part of the kitchen appliance.