Damper Protruding Cutout Alignment Mechanism
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Solution Overview
Problem
Conventional damper devices require increased working man-hours and manufacturing costs due to the need for precise alignment and rotation restriction of intermediate elements, which complicates the manufacturing process.
Innovation Solution
The damper device incorporates protruding portions with restricting and support features on one element and corresponding cutout portions on the other, allowing easy and accurate alignment while preventing rotation, thereby reducing manufacturing complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If cylindrical portions and protruding portions are formed in the output plate to support and align the intermediate member, then the intermediate member can be properly positioned and rotation restricted, but working man-hours increase and manufacturing cost increases
Solution Approach 1:
The patent combines the alignment function and rotation restriction function into a single integrated protruding portion structure. The protruding portion simultaneously provides radial alignment through its outer peripheral surface and rotation restriction through its side surface engaging with the cutout portion, eliminating the need for separate cylindrical portions and multiple protruding portions, thus reducing manufacturing complexity while maintaining positioning precision.
Solution Approach 2:
The protruding portion is designed to perform multiple functions: it provides radial support through its outer peripheral surface, rotational restriction through its side surface, and axial positioning through its projection into the cutout portion. This multi-functional design consolidates several structural elements into one, simplifying the manufacturing process while achieving the required positioning accuracy.
2Reliability
If multiple protruding portions are formed to restrict rotation and support the intermediate member, then rotation restriction is achieved, but the burden on protruding portions increases and durability decreases
Solution Approach 1:
The patent utilizes the depth dimension by having the protruding portion project axially into the cutout portion of the intermediate member. This axial projection provides effective rotation restriction without requiring multiple protruding portions, thereby reducing the mechanical burden on each individual protruding portion while maintaining reliable rotation restriction through the engagement geometry.
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 simplifies the manufacturing process, reduces costs, and enhances durability by minimizing the burden on the protruding portions, allowing for efficient alignment and rotation restriction of intermediate elements relative to output elements.
Implementation Method 1
an intermediate element to which power is transferred from the input element through a first elastic body
Implementation Method 2
an output element to which power is transferred from the intermediate element through a second elastic body
Data Source
AI summary
A damper device configured with an input element, an intermediate element to which power is transferred from the input element through a first elastic body, and an output element to which power is transferred from the intermediate element through a second elastic body. One of the output element and the intermediate element has a protruding portion projecting in an axial direction. The other one of the output element and the intermediate element has a cutout portion corresponding to the protruding portion. The protruding portion has a restricting portion that is engaged with the cutout portion in a rotation direction so as to restrict rotation of the intermediate element relative to the output element, and a support portion that is engaged with the cutout portion so that the intermediate element is supported by the output element in a radial direction.