Food Compression Tool Gear Linkage for Low-Force Pressing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional kitchen tools for squeezing, pressing, and processing food require significant effort due to their size and design, making them difficult or impossible for individuals with limited strength, such as the elderly or those with arthritis, to use effectively.
Innovation Solution
A handheld compression tool with a piston assembly and gear mechanism that provides mechanical advantage, allowing for easier operation with one or two hands and enabling efficient processing of food items by reducing the required force through a gear assembly that converts pivoting motion into arcuate motion of the piston.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If traditional kitchen tools are used for squeezing, pressing, or processing food articles, then the required compression force is sufficient to effectively process dense food items, but the device requires significant manual effort and force that makes it difficult or impossible for individuals with limited strength to use
Solution Approach 1:
The device employs a dynamic mechanism where the user rotates a handle that drives a cam follower, converting rotational motion into linear reciprocating motion of the piston. This dynamic motion generation allows the system to build up compression force progressively through the compression stroke while requiring minimal initial effort from the user, resolving the contradiction between high compression force and ease of operation.
Solution Approach 2:
The invention changes the dimension of user input from direct linear compression force to rotational torque applied to the handle. By rotating the handle in a circular path, the user leverages mechanical advantage through the cam mechanism to generate the required linear compression force, making the device operable by individuals with limited hand strength while still achieving sufficient compression on dense food items.
2Force
If traditional kitchen tools are designed with sufficient size to process dense food articles effectively, then the compression capability is adequate, but the device becomes too large and cumbersome for portable handheld use
Solution Approach 1:
The device features a nested structure where the piston moves within the receptacle, and the cam mechanism is integrated into the handle assembly. The receptacle can be positioned within or adjacent to the base structure, and the cam follower is contained within the handle's rotational path. This nesting allows the device to maintain adequate compression capability while minimizing overall volume for portable handheld use.
Solution Approach 2:
The device is segmented into distinct functional modules: a receptacle for holding food articles, a piston for compression, a cam mechanism for motion conversion, and a handle for user input. This segmentation allows each component to be optimized for its specific function while keeping the overall device compact, as each module can be tightly integrated with the others in a space-efficient arrangement.
3Ease of operation
If a gear mechanism is added to provide mechanical advantage and reduce required input force, then ease of operation improves, but device complexity increases
Solution Approach 1:
The invention extracts the complex gear mechanism from the system and replaces it with a simpler cam-based motion conversion mechanism. The cam follower translates rotational handle motion directly into linear piston motion through the geometric profile of the cam, eliminating the need for multiple gears, shafts, and linkages. This extraction maintains ease of operation through mechanical advantage while significantly reducing device complexity.
Solution Approach 2:
The cam mechanism serves as an intermediary between the user's rotational input and the piston's linear compression motion. The cam profile is designed to provide mechanical advantage during the compression stroke, allowing the user to apply minimal rotational force while the cam geometry amplifies this into sufficient linear compression force on the food article, achieving ease of operation without complex gearing.
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 tool allows users to apply desired forces with less effort, making it suitable for a wide range of individuals, including those with limited strength, and is portable and versatile for various food processing tasks.
Implementation Method 1
The lever hinge end has a plurality of gear teeth enmeshable with the gear teeth of the base such that pivoting motion of the lever causes movement of the distal portion of the lever about the distal portion of the base
Implementation Method 2
The piston assembly is coupled to the base hinge end and the lever hinge end. The plurality of gear teeth of the lever engage the plurality of the gear teeth of the base
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
The present invention refers to a compression tool (100), comprising a base (102) including a base handle portion (109) and a base hinge end (110), the base hinge end (110) having a plurality of gear teeth (138); a receptacle (114) configured to receive and hold an article of food; a lever (104) rotatably coupled to the base (102), the lever (104) including a lever handle portion (111) and a lever hinge end (128) having a plurality of gear teeth (136); and a piston assembly (106) including a bracket assembly (141) and a piston head (120) carried by the bracket assembly (141), the bracket assembly (106) being pivotally coupled to the base hinge end (110) and pivotally coupled to the lever hinge end (128) such that the plurality of gear teeth (136) of the lever (104) engage the plurality of gear teeth (138) of the base (102), the piston head (120) compresses the article of food held in the receptacle (114) when the lever handle portion (111) is moved towards the base handle portion (109) to cause the plurality of gear teeth (136) of the lever (104) to move along the gear teeth (138) of the base (102).