Tilt-Activated Electric Condiment Grinder With Recessed Dispensing
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Solution Overview
Problem
Conventional electric condiment grinders face ergonomic challenges for users with reduced mobility due to the need to rotate them 180° to dispense ground condiments, and they often dislodge particles, soiling surfaces when placed upright, while also being costly to manufacture and having inefficient geartrains.
Innovation Solution
A cordless electric condiment grinder with a hollow housing, epicyclic geartrain, and a tilt switch that allows for easy operation by tilting 40°-50°, catching particles with a recessed grinding mechanism, and using modular components for reduced weight and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the grinder is designed in conventional upright orientation, then it is easy to manufacture and operate, but particles are dislodged when placed on table causing soiling
Solution Approach 1:
The grinder is inverted so that the base rests on the table surface and the grinding mechanism is positioned above. This inversion prevents particles from dislodging onto the table while enabling automatic operation through tilt switch activation, resolving both the soiling problem and the mobility issue simultaneously
2Object-affected harmful factors
If the grinder is inverted to prevent particle dislodgement, then particles are caught in recess, but it requires 180° rotation to dispense which troubles users with reduced mobility
Solution Approach 1:
The grinder uses a tilt switch that automatically detects when the device is tilted at the correct angle and activates the motor accordingly. This self-service mechanism eliminates the need for manual switching or complex rotation operations, allowing users with reduced mobility to simply tilt the grinder to dispense condiments
Solution Approach 2:
The grinder incorporates a tilt switch that dynamically responds to the orientation of the device. When tilted within the operational range (40°-50°), the switch automatically activates the motor, enabling dynamic control that adapts to user movements without requiring precise manual positioning or rotation
3Ease of manufacture
If conventional geartrains are used, then manufacturing is straightforward, but weight and inertia are high reducing efficiency
Solution Approach 1:
The patent extracts and eliminates unnecessary components from the geartrain system, using a simplified planetary gear mechanism that achieves the required speed reduction with fewer parts. This extraction of excess mass reduces both weight and inertia while maintaining manufacturability through standard gear components
4Productivity
If motor speeds are increased for efficiency, then grinding performance improves, but operational noise increases
Solution Approach 1:
The planetary geartrain acts as an intermediary between the high-speed motor and the grinding mechanism. It provides speed reduction and torque multiplication, allowing the motor to operate at high speeds for efficiency while the reduced-speed output minimizes noise during grinding operations
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 design enhances ergonomics for users with reduced mobility, efficiently catches particles when upright, reduces manufacturing costs, and operates quietly at high speeds with a compact and efficient geartrain.
Implementation Method 1
The transmission means includes an epicyclic geartrain driven by the motor and a bevel gear pair connected between the epicyclic geartrain and the drive shaft
Implementation Method 2
the switch is a tilt switch for automatically actuating the motor when the grinder is tilted from an upright position to direct the lateral opening downwardly
Implementation Method 3
a recess in the housing extends about the lateral opening, the recess having peripheral walls, the grinding mechanism being completely recessed within the housing and a lower section of the peripheral walls being upwardly concave to catch any condiment particles dislodged from or through the grinding mechanism
Implementation Method 4
the grinding mechanism includes a rotor and stator cooperating for grinding the condiment therebetween
Data Source
AI summary
A cordless electric condiment grinder includes a hollow housing elongated to extend between a base for supporting the grinder uprightly and an opposing top, the top of the housing having a bulbous form to define a condiment reservoir. A rotary grinding mechanism is disposed in a lateral opening in the top of the housing and a tilt switch controls operation of the grinding mechanism, allowing freshly ground condiment to be dispensed automatically upon rotating the grinder through an acute angle and thus is particularly suited for use by people with limited dexterity.