Coffee Maker Stand Drawer With Switchable Rollers and Latch Lock
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Solution Overview
Problem
Existing coffee maker stands either resist relocation or are unintentionally moved, failing to address the need for easy movement between counter top and storage under kitchen cabinets, and lack adequate storage for brewing cartridges.
Innovation Solution
A coffee maker stand with a drawer for brewing cartridges and a two-position latch or handle that extends rollers for easy movement and retracts them to resist movement, using a vertically sliding handle or horizontally sliding latch with a cam to lock the drawer and control the roller assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the coffee maker stand is designed to be stationary for stability, then it resists movement, but it cannot be easily relocated when needed
Solution Approach 1:
The patent applies the dynamics principle by incorporating rollers that can be extended or retracted based on operational needs. When the handle is in the first position, rollers extend to enable easy movement of the stand. When the handle is in the second position, rollers retract to provide stability. This dynamic adjustment allows the stand to transition between mobile and stationary states, resolving the contradiction between ease of relocation and stability.
2Ease of operation
If the stand uses rollers for easy movement, then it can be relocated, but it may be unintentionally moved during use
Solution Approach 1:
The dynamic roller mechanism allows the system to switch between two states: extended rollers for easy movement and retracted rollers for stability. The latch mechanism ensures that once positioned, the stand remains stable and resistant to unintentional movement, thus resolving the reliability concern while maintaining ease of movement when needed.
Solution Approach 2:
The latch mechanism acts as an intermediary that controls the state of the rollers. It ensures that the rollers are only extended when intentional movement is desired and retracted when stability is needed, preventing unintentional movement while maintaining ease of intentional relocation.
3Ease of operation
If the drawer is made accessible for cartridge storage, then users can easily access cartridges, but the drawer may be accidentally removed during movement
Solution Approach 1:
The drawer is equipped with a dynamic locking mechanism that engages when the stand is stationary and disengages when movement is intended. This allows easy access to cartridges during normal use while preventing accidental removal during relocation, resolving the contradiction between accessibility and retention.
Solution Approach 2:
The locking mechanism is designed to automatically engage the drawer before movement occurs, ensuring it is secured in advance. This preliminary action prevents accidental removal during movement while maintaining easy accessibility when the stand is stationary.
4Quantity of substance
If the stand is designed with storage drawer, then brewing cartridges can be stored, but the overall structure becomes more complex
Solution Approach 1:
The drawer serves multiple functions: it provides storage for brewing cartridges and also acts as part of the locking mechanism for the rollers. This multi-functionality adds storage capacity while minimizing the increase in structural complexity, as the drawer integrates with existing components rather than adding entirely new elements.
Data Source
AI summary
A coffee maker stand includes a drawer for brewing cartridges and a two position latch or handle. The latch or handle has a first position locking the drawer into the stand and extending rollers under the stand allowing easy movement of the stand, and second position retracing the rollers to resist moving the stand and releasing the drawer.