Steering Apparatus Adaptive Mounting Member for Vehicle Subframe
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing steering apparatuses for vehicles face challenges in stably coupling the rack housing to the subframe, leading to potential damage, deformation, noise, and poor steering feel due to manufacturing difficulties in precisely controlling the mounting part's level and angle.
Innovation Solution
A steering apparatus with a mounting member that includes a mounting part, a sub mounting part, and a fastening part, where the sub mounting part is rotatably coupled to the mounting part and the subframe, allowing for adaptive coupling and reduced load on the rack housing, preventing damage and noise, and improving steering feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid mounting structure is used to couple the rack housing to the subframe, then the coupling strength is improved, but the manufacturing precision requirement increases and the risk of damage and deformation increases
Solution Approach 1:
The mounting member is designed with a rotatable sub mounting part that can dynamically adjust its orientation to match the subframe's position and shape, transforming a static rigid connection into a dynamic adaptive one that accommodates manufacturing variations
Solution Approach 2:
The mounting member changes its mounting parameters (orientation and position) by rotating the sub mounting part to adapt to variations in the subframe's shape and position, allowing the same structural component to accommodate different manufacturing outcomes
2Stability of the object's composition
If a fixed mounting structure is used, then the structural stability is improved, but the adaptability to subframe variations decreases
Solution Approach 1:
The sub mounting part is designed to rotate about an axis, enabling the mounting member to adapt its orientation to match variations in the subframe's position and shape while maintaining stable coupling
Solution Approach 2:
The mounting member automatically adjusts itself to the subframe's configuration through the rotatable sub mounting part, eliminating the need for precise pre-alignment or external adjustment mechanisms
3Ease of manufacture
If the mounting structure does not accommodate subframe variations, then the manufacturing complexity is reduced, but the rack housing is subjected to excessive load and deformation
Solution Approach 1:
The rotatable sub mounting part acts as an intermediary between the mounting part and the subframe, absorbing position and shape variations to protect the rack housing from excessive loads and deformation
Solution Approach 2:
The rotational degree of freedom in the sub mounting part provides a cushioning mechanism that absorbs manufacturing variations before they can transmit excessive loads to the rack housing
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 solution ensures stable coupling of the rack housing to the subframe, reducing damage and noise, and enhancing steering performance by allowing for adaptive positioning and rotation of the sub mounting part to match the subframe's shape, thereby maintaining contact and preventing bending.
Implementation Method 1
a fastening part head coupled to the fastening part body, having a larger diameter than the fastening part body, and pressurizing the mounting part toward the sub mounting part
Implementation Method 2
The fastening part body may be screwed to the subframe through a screw thread formed on the outer circumferential surface thereof
Implementation Method 3
a sub mounting part interposed between the mounting part and the subframe and rotatably coupled to the mounting part
Data Source
AI summary
A steering apparatus for a vehicle may include: a pinion gear rotated in connection with a steering wheel; a rack housing for housing a rack bar which is rotated while engaged with the pinion gear; and a mounting member coupled to the rack housing, wherein the mounting member may be coupled to a subframe while the shape thereof is changed according to the position or shape of the subframe.