Suspension Preload Cam Adjuster for Tight-Space Tool Engagement
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Solution Overview
Problem
Conventional vehicle suspension systems face difficulties in adjusting preload due to limited space, making it challenging to operate the adjuster part and complicating the preload adjusting process, with a desired simpler structure.
Innovation Solution
The vehicle suspension incorporates a preload adjusting mechanism with a cam receiving part and an adjuster part, featuring a ring-like spring receiving part, cam surfaces of varying heights, and an engaging mechanism with vertical wall parts and holes to facilitate easy tool engagement, allowing for simple and efficient preload adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the adjuster part is designed with a simple structure, then the device complexity is reduced, but the ease of operation deteriorates due to difficulty in tool engagement
Solution Approach 1:
The adjuster part is segmented into multiple vertical wall parts arranged circumferentially, creating multiple gaps that serve as engaging parts. This segmentation allows the tool to engage with the adjuster part at multiple locations, improving operational ease while maintaining a relatively simple overall structure.
Solution Approach 2:
The vertical wall parts act as intermediaries between the tool and the cam part. These wall parts create gaps that facilitate tool engagement, serving as a mediating structure that connects the external tool to the internal cam mechanism without complicating the overall design.
2Volume of moving object
If the space around the vehicle suspension is narrow, then the compactness is improved, but the ease of operation deteriorates due to difficulty in setting a tool to operate the adjuster part
Solution Approach 1:
By dividing the adjuster part into multiple vertical wall segments, the invention creates multiple access points (gaps) for tool engagement. This allows the tool to reach the adjuster part from different directions, making operation feasible even in narrow spaces where access from a single direction would be difficult.
Solution Approach 2:
The vertical wall parts extend in the axial direction of the spring, creating engaging parts that protrude outward from the radial direction. This dimensional arrangement allows tool engagement from the radial direction while maintaining a compact axial profile, effectively utilizing space in multiple dimensions.
3Productivity
If the rotation angle required for each stage is reduced, then the productivity is improved, but the device complexity increases due to the need for more engaging parts
Solution Approach 1:
The adjuster part is divided into multiple vertical wall parts that create multiple gaps as engaging parts. This segmentation allows for smaller rotation angles between adjacent cam surfaces, enabling faster adjustment through smaller incremental steps while the modular gap structure prevents excessive complexity.
Solution Approach 2:
The vertical wall parts serve multiple functions: they create engaging gaps for tool attachment, provide structural support for the cam surfaces, and define the rotation increments. This multi-functionality allows the same structural elements to achieve both the reduced rotation angle requirement and maintain manageable 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
This configuration simplifies the preload adjustment process by increasing the number of engaging parts, reducing the rotation angle required for each stage, and enabling easy tool engagement, thus improving the operational ease and space efficiency of the preload adjustment.
Implementation Method 1
the cam part being provided with a plurality of cam surfaces extending from the spring receiving part toward the cam receiving part, the preload being adjusted by selective engagement of the cam surfaces with the cam receiving part by rotation of the adjuster part
Data Source
AI summary
In a vehicle suspension, a preload is adjusted by selective engagement of cam surfaces of different heights with a cam receiving part by rotation of an adjuster part, the adjuster part includes a vertical wall part erected in an axial direction of a spring from a spring receiving part and an engaging part with which a tool to rotate the adjuster part is to be engaged, and the engaging part includes a first engaging part formed by a gap between the plurality of vertical wall parts disposed separately from each other in a circumferential direction of the adjuster part and a second engaging part formed by a hole penetrating the vertical wall part.