Handheld battery powered grater
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Solution Overview
Problem
Manual graters are difficult to use, especially for grating hard products like hard cheese, particularly for the elderly or disabled, and loose components are easily lost.
Innovation Solution
A handheld battery powered grater with a detachable product container, storage for components, and a motor-driven mechanism that allows single-handed operation, along with a stand for charging and component storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual grater is used for hard products, then the grating function is provided, but it is difficult to use particularly for the elderly or disabled
Solution Approach 1:
The patent replaces the manual mechanical grating system with an electric motor-driven system. The motor rotates the product container against a stationary blade, eliminating the need for manual cranking or pressing actions that are difficult for the elderly or disabled. This substitution of mechanical effort with electrical power directly resolves the contradiction between ease of operation and device complexity.
2Productivity
If manual grating is performed, then grating function is achieved, but it requires continuous manual effort and is inefficient for hard products
Solution Approach 1:
The electric motor replaces continuous manual effort with automated rotation, dramatically improving grating efficiency for hard products. The motor provides consistent rotational force without fatigue, enabling efficient processing of hard cheeses and other difficult materials while reducing operational effort to simple button pressing.
Solution Approach 2:
The system employs dynamic rotation of the product container against a stationary blade, creating continuous motion that enhances grating efficiency. The rotational mechanism maintains constant contact between the product and blade, ensuring efficient and consistent grating operation without requiring intermittent manual intervention.
3Ease of repair
If components are kept loose for accessibility, then ease of maintenance is improved, but components are easily lost
Solution Approach 1:
The patent implements nested storage where the sealing cap contains a compartment for storing the grating blade when not in use. This nesting arrangement keeps the blade securely housed within the cap structure, preventing loss while maintaining easy accessibility when needed for maintenance or replacement.
Solution Approach 2:
The sealing cap serves multiple functions: it seals the product container to maintain freshness, and it houses the grating blade storage compartment. By merging these two functions into a single component, the design ensures the blade is always stored in a designated location rather than being loose, while still being easily accessible when needed.
4Reliability
If the product container is detached and sealed for storage, then product freshness is maintained, but the device structure becomes more complex
Solution Approach 1:
The sealing cap is designed as a multi-functional component that provides both product sealing for freshness preservation and blade storage capability. This universal design achieves the freshness protection goal while minimizing structural complexity by combining multiple functions into a single integrated component rather than adding separate systems.
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
The grater is easy to use, efficient in grating hard products, reduces component loss, and maintains product freshness without washing after each use.
Implementation Method 1
a battery, a motor, and a button; and a product container removably coupled with the power handle and having: an internal mechanism that rotates; and a non-rotating blade positioned at a distal end of the product container from the power handle; wherein activation of the button transfers electrical power from the battery to the motor to cause the internal mechanism to rotate
Data Source
AI summary
A handheld battery powered grater includes a power handle and a product container. A motor within the power handle drives a crankshaft that rotates a product within the product container against a non-rotating blade to cause the product to be grated by the non-rotating blade and emitted from a bottom end of the handheld battery powered grater. A spring within the product container provides a continuous force to press the product against the blade. The product container detaches from the power handle and may be sealed by a sealing cap for easy storage in a refrigerator. A stand for the handheld battery powered grater includes a recharging cable that may recharge a battery of the handheld battery powered grater positioned in the stand. The sealing cap also stored additional blades that are easily interchangeable.