Rollable Appliance Drawer With Raise-Lower Wheels for Tool Access
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Solution Overview
Problem
The existing single-drawer systems for mixing machines and food processors are inconvenient as they do not allow easy operation when stacked, as the space between the countertop and the cabinet is insufficient to raise the mixing machine's upper portion, forcing users to remove and reposition the machine to install tools.
Innovation Solution
A rollable drawer system with adjustable wheels that can be raised to secure the system in place or lowered to allow rolling, enabling users to easily access tools without obstructing the mixing machine's operation by adjusting the wheels between raised and lowered positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the mixing machine is stacked on top of the drawer on the countertop, then storage space is utilized, but the upper portion of the mixing machine cannot be raised for tool installation
Solution Approach 1:
The drawer system incorporates movable wheels that can be raised or lowered. When the wheels are lowered, the drawer can be rolled out from under the mixing machine, providing access to the countertop space for tool installation. When the wheels are raised, the drawer remains stationary and supports the mixing machine securely. This dynamic adjustment resolves the contradiction between storage utilization and operational accessibility.
2Ease of operation
If the drawer is rolled out from under the mixing machine, then tool access is enabled, but the mixing machine becomes unstable
Solution Approach 1:
The system uses a dynamic wheel positioning mechanism where wheels can be raised or lowered. When tools need to be accessed, the wheels are lowered to allow the drawer to roll out, and the mixing machine is temporarily moved to the cabinet. When the drawer returns to its stored position with wheels raised, the mixing machine is placed back on the drawer, restoring stability. This dynamic approach enables tool access while maintaining mixing machine stability during operation.
3Ease of operation
If the wheels are always in the lowered position, then the drawer can be easily moved, but the mixing machine cannot be securely supported
Solution Approach 1:
The drawer system employs a raised/lowered wheel mechanism that allows the wheels to be positioned in two states. When lowered, the wheels enable the drawer to roll easily for access. When raised, the wheels provide a stable, level surface that securely supports the mixing machine during operation. This dynamic positioning resolves the contradiction between mobility and support stability.
4Area of stationary object
If the drawer is kept in the stored position under the cabinet, then space is optimized, but tool access requires removing the mixing machine
Solution Approach 1:
The movable wheel system allows the drawer to transition between stored and accessed positions. When tools are needed, the wheels are lowered and the drawer is rolled out from under the cabinet, providing direct access to tools without requiring the mixing machine to be removed. The drawer can then be rolled back into its space-optimizing stored position. This dynamic mechanism resolves the contradiction between space optimization and tool access convenience.
Data Source
AI summary
An apparatus includes first and second side portions, and a horizontal portion disposed between the first and second side portions. Each side portion includes an inner wall joined to the horizontal surface, an exterior wall, and a top portion connected that define a volume within the side portion. Each side portion also includes first and second wheels within the volume, the first and second wheels having a raised wheel position and a lowered wheel position. Each side portion also has an arm coupled to the outer wall of the side portion, the arm having a first arm position and a second arm position. Movement of the arm from the first arm position to the second arm position causes the wheels to move from the raised wheel position to the lowered wheel position.