Vehicle Seat Dynamic Damper With Replaceable Tuning Components
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Solution Overview
Problem
The existing seat device for vehicles with dynamic dampers is not economical for adjusting damping characteristics, as the entire housing is made into a unit, making it impossible to replace the weight and elastic member without replacing the entire damper, and the mounting process is cumbersome due to the lack of a mounting part for the seat.
Innovation Solution
A seat device with a dynamic damper featuring a damper case formed from separable case halves, allowing for the exchange of weights and elastic members, and equipped with elastic linking claws and holes for easy assembly and disassembly, along with a mounting part for secure attachment to the seat frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the housing is made into a unit that cannot come apart, then the structural integrity is improved, but the ability to replace weight and elastic member is worsened
Solution Approach 1:
The housing is divided into a first housing part and a second housing part that can be separated from each other. This segmentation allows the weight and elastic member to be accessed and replaced while maintaining structural integrity when assembled. The dynamic damper can be disassembled by separating the housing parts, enabling replacement of internal components without replacing the entire unit.
2Ease of manufacture
If the housing is made into a unit that cannot come apart, then the manufacturing simplicity is improved, but the ease of repair is worsened
Solution Approach 1:
The housing is divided into separable parts that can be easily assembled and disassembled. This segmentation enables simple manufacturing processes while also allowing easy replacement of the weight and elastic member during repair or adjustment, resolving the contradiction between manufacturing simplicity and ease of repair.
3Device complexity
If no mounting part is provided on the housing, then the device simplicity is improved, but the ease of operation is worsened
Solution Approach 1:
The mounting part is integrated into the housing structure, combining the housing function with the mounting function. This merging allows the dynamic damper to be easily mounted on the seat using the built-in mounting part, improving ease of operation without significantly increasing device complexity.
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 adjustable damping characteristics without needing a new damper and simplifies the mounting process by allowing the damper case to be easily attached to the seat frame without special tools, enhancing both functionality and user convenience.
Implementation Method 1
an elastic member that is disposed between the weight and an inner face of the damper chamber so as to allow vibration of the weight
Implementation Method 2
one and the other of the first and second case halves have formed thereon a plurality of pairs of elastic linking claws and linking holes that snap fit together to join the two case halves
Data Source
AI summary
In a seat device for a vehicle, a dynamic damper comprises a damper case that is formed from first and second case halves joined together so as to be capable of separating from each other to define a damper chamber therebetween, a weight that is housed in the damper chamber, and an elastic member that is disposed between the weight and an inner face of the damper chamber so as to allow vibration of the weight, the damper case being provided with a mounting part that is mounted on a frame of the seat. Thus, it is possible to provide a seat device for a vehicle in which replacement of a weight and an elastic member in order to adjust or change the damping characteristics is possible, and the ease of mounting a damper case on a seat is good.