Damper Assembly Layout for Lower Material Cost and Axial Space
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Solution Overview
Problem
Existing damper devices with torque limiter functions are costly due to surplus parts formed between components when configured from single members.
Innovation Solution
The damper device configuration eliminates surplus parts by ensuring that the inner diameters of the side plates and the outer diameters of the input plates are equal, allowing them to be taken out from single members without radial gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the inner diameter of the first side plate is made equal to the outer diameter of the output plate to eliminate radial gaps, then material cost is reduced, but the components must be precisely configured to avoid interference
Solution Approach 1:
The patent merges the first side plate and output plate into a single integrated component, eliminating the radial gap between them. This combining approach removes the need for separate manufacturing and assembly, directly reducing material waste and production costs while maintaining precise dimensional relationships through monolithic construction
Solution Approach 2:
The first side plate is designed to serve multiple functions: it provides structural support for the torque limiter unit, defines the radial boundary of the damper unit, and interfaces with the output plate. By making the inner diameter equal to the outer diameter of the output plate, a single component achieves both torque limitation and precise radial positioning functions
2Length of moving object
If the pressure plate and output plate are overlapped in radial view to make the device compact in the axial direction, then the axial length is reduced, but the inner diameter of the pressure plate must be greater than the outer diameter of the output plate
Solution Approach 1:
The patent utilizes radial overlap in the radial dimension to achieve axial compactness. By making the inner diameter of the pressure plate greater than the outer diameter of the output plate, the components overlap when viewed radially, allowing the axial length to be minimized without increasing radial dimensions or material consumption
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 configuration reduces material costs and allows for a more compact axial design by eliminating unnecessary parts and enabling overlapping components in a radial view.
Implementation Method 1
The elastic member elastically connects the output plate and the first and second input plates
Implementation Method 2
The torque limiter unit includes a cover plate, a friction plate, and a pressure plate
Data Source
AI summary
A damper device includes a damper unit and a torque limiter unit. The damper unit includes an output plate, an elastic member, first and second input plates. The torque limiter unit includes a pressure plate, first and second side plates. The first side plate has an inner diameter equal to an outer diameter of the output plate. The second side plate has an inner diameter equal to an outer diameter of the first input plate. The pressure plate has an inner diameter equal to an outer diameter of the second input plate. An inner-peripheral surface of the first side plate is not opposed to an outer-peripheral surface of the output plate. An inner-peripheral surface of the second side plate is not opposed to an outer-peripheral surface of the first input plate. An inner-peripheral surface of the pressure plate is not opposed to an outer-peripheral surface of the second input plate.