Universal Linking Member for Selective Gear Engagement
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Solution Overview
Problem
Conventional gear devices require dedicated linking members for different torque input units, leading to an increase in the number of components due to distinct input gear arrangements, which complicates the integration of mutually different torque input units.
Innovation Solution
A gear device design that allows either a first input gear or a second input gear to be selectively mounted, featuring a linking member with external teeth that can be positioned to engage with either gear, enabling the transmission of torque to a crankshaft and oscillation gears, while the carrier and outer cylinder rotate coaxially, thus accommodating different torque input units without increasing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dedicated linking members are prepared for each torque input unit structure, then the input gear arrangement can be changed, but the number of components increases
Solution Approach 1:
The linking member is designed with a universal structure that can engage with both the first input gear and the second input gear through different engagement positions. The member includes a first engagement portion and a second engagement portion that can selectively connect to different input gear arrangements, allowing one linking member to serve multiple torque input unit configurations without requiring dedicated linking members for each variant.
2Adaptability or versatility
If multiple dedicated linking members are prepared, then each torque input unit can be properly integrated, but the device complexity increases
Solution Approach 1:
The linking member incorporates multiple engagement portions (first engagement portion and second engagement portion) that enable it to adapt to different torque input unit structures. This universal design allows the same linking member to be used across various configurations, reducing device complexity by eliminating the need for multiple specialized components while maintaining full integration capability for different torque input units.
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
Enables the arrangement of input gears to be changed without increasing the number of components, allowing for flexible integration of various torque input units by selectively positioning the linking member, ensuring efficient torque transmission regardless of the input gear used.
Implementation Method 1
a crankshaft including a shaft main body and an eccentric portion eccentric with respect to an axial center of the shaft main body; an oscillation gear oscillating and rotating due to rotation of the eccentric portion
Implementation Method 2
a linking member including external teeth and configured to transmit the rotation of the input gear to the crankshaft
Data Source
AI summary
A gear device is provided with a crankshaft including a shaft main body and an eccentric portion, a linking member including external teeth and configured to transmit the rotation of the input gear to the crankshaft, a carrier configured to rotatably support the crankshaft, an oscillation gear oscillating and rotating, and an outer cylinder including internal teeth engaged with the oscillation gear. The carrier and the outer cylinder are configured to concentrically relatively rotate according to the rocking rotation of the oscillation gear. The linking member is configured to selectively take a first position where the external teeth are engaged with a first input gear and a second position where the external teeth are engaged with a second input gear.