Multi-Plane Food Processor Gearing for Compact Multi-Tool Drive
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Solution Overview
Problem
Existing food processor gearboxes are not compact enough for efficient use in space-constrained appliances, particularly handheld devices, and lack flexibility in torque and speed settings for various processing tools.
Innovation Solution
A gearbox design with gears arranged in three or more planes, allowing power transmission between shafts via gears in different levels, enabling a compact and space-saving configuration, with multiple axes of rotation and varying reduction ratios for different tools, allowing simultaneous operation of multiple output shafts with distinct torques and speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional two-plane or vertical zigzag gear arrangements are used, then the gearbox structure is simpler, but the gearbox occupies more space and is less compact
Solution Approach 1:
The patent transitions from traditional two-plane horizontal or vertical gear arrangements to a three-dimensional multi-level configuration with three or more planes. This dimensional expansion allows gears to be stacked vertically and horizontally, creating a compact cubic arrangement that reduces overall gearbox volume while maintaining functional simplicity through standardized gear module design
2Adaptability or versatility
If a single output shaft is used, then the gearbox structure is simpler, but the versatility for different tools is reduced
Solution Approach 1:
The patent implements multiple output shafts (at least two) that can simultaneously or independently operate with different tools. Each output shaft can be coupled to different working tools, allowing the gearbox to serve multiple functions - such as simultaneously driving a cutter and a mixer, or providing different speed/torque ratios for different tool requirements - thereby achieving universality without excessive complexity
3Adaptability or versatility
If fixed gear ratios are used, then the gearbox structure is simpler, but the adaptability to different processing requirements is reduced
Solution Approach 1:
The patent employs variable gear ratios through selectively engageable gear stages. Different gear combinations can be activated depending on the tool requirements, allowing dynamic adjustment of speed and torque transmission. This is achieved through a modular gear arrangement where different gear pairs can be engaged to provide various reduction ratios, enabling the system to adapt to different processing tasks without changing the physical structure
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
This design results in a compact, versatile gearbox that can handle a wide range of torque and speed requirements, simplifying tool usage and enabling simultaneous operation of multiple tools, enhancing the usability and efficiency of food processors.
Implementation Method 1
The input shaft and a first output shaft are operatively connected to one another via at least two transmission shafts by means of gear wheels, so that a rotation of an input shaft is transmitted to the first output shaft
Data Source
Figure 1a~2b
Figure 3a~3b
Figure 4
AI summary
The invention relates to a gearing (1) for a food processor, comprising at least one drive-side input shaft (2) and at least one driven-side output shaft (4), said at least one input shaft (2) and at least one output shaft (4) being functionally interconnected by toothed wheels (5) by means of at least one additional transmission shaft (3) such that a rotation of an input shaft (2) is transmitted to at least one output shaft (4). According to the invention, the toothed wheels (5) are arranged in three or more different planes and the shafts (3, 4, 5) are arranged to rotate about at least three rotational axes that are spaced apart from one another.