Damper Device Supporting Member Axial Inclination Prevention
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Solution Overview
Problem
Conventional damper devices experience instability due to supporting members being easily inclined in the axial direction during relative rotation between the first and second members, leading to reduced variable torque transmission.
Innovation Solution
Incorporating projections and recesses on the supporting members to stabilize their position between the wall members and the second member, preventing further inclination and enhancing support stability with lower surface pressure contact points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the preventing portion is added to the supporting member to prevent axial inclination, then the supporting stability is improved, but the device complexity increases
Solution Approach 1:
The preventing portion is merged with the supporting member as an integrated structure. The preventing portion can be formed as a projection, extension, or integrated feature of the supporting member itself, combining the support function and prevention function into a single component rather than separate parts.
Solution Approach 2:
The supporting member with the preventing portion performs multiple functions: it supports the elastic member axially while simultaneously preventing axial inclination through the preventing portion's contact with wall members or the second member. This multi-functionality reduces the need for separate components.
2Ease of operation
If a recess is provided on the preventing portion for insertion, then the ease of assembly is improved, but the surface pressure on contact portions increases
Solution Approach 1:
The preventing portion is segmented with a recess that divides the contact surface into multiple regions. The recess creates distinct contact zones on either side, distributing the insertion force across multiple surface areas rather than concentrating it at a single point.
Solution Approach 2:
The recess provides a nested insertion path where one component can be inserted into another, facilitating assembly. The recess acts as a guide and receiving feature that allows the second member or wall member to be inserted onto the preventing portion in a controlled manner.
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 configuration allows for stable support of elastic members, preventing axial inclination and facilitating easier insertion, thus maintaining torque transmission efficiency with reduced risk of direct contact and increased stability.
Implementation Method 1
a plurality of coil springs (elastic members) that are interposed in an opening between the first member and the second member and are elastically deformed in the circumferential direction of the rotating axis
Data Source
AI summary
A damper device includes a first member, a second member, an elastic member and a supporting member. The first member has two wall members separated from each other. The supporting member includes projections (preventing portion) that make contact with one of two wall portions (wall members) so as to prevent the supporting member and an elastic member from being inclined (falling, rotationally moving) in the axial direction.