Front Fork Cylinder Fixing With Axial Force Assembly
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Solution Overview
Problem
Conventional front fork designs require a large number of components and involve significant screw machining and threading work to fix the cylinder inside the inner tube, leading to increased costs and complexity.
Innovation Solution
A front fork design that uses a fastening portion formed on the inner tube to sandwich the cylinder and head member, eliminating the need for pins, snap rings, and threading by applying an axial force to fix the cylinder, thereby reducing the number of components and machining required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pins, snap rings, and threading are used to fix the cylinder inside the inner tube, then the cylinder is securely fixed, but the number of components increases and manufacturing complexity increases
Solution Approach 1:
The invention merges the stopper portion and cylinder head portion into a single integrated component. The stopper portion is formed as an integral part of the cylinder head portion, eliminating the need for separate pins and snap rings to attach the stopper portion to the inner tube. This integration reduces the number of components while maintaining the secure fixing function through the axial force applied to the cylinder.
2Reliability
If pins and snap rings are used to mount the stopper portion, then the cylinder is fixed without rattling, but screw machining and threading work are required
Solution Approach 1:
The stopper portion and cylinder head portion are merged into a single integrated component, eliminating the need for separate screw machining operations on multiple parts. The axial force fixing method replaces the need for threading the stopper portion separately, reducing manufacturing steps and costs.
Solution Approach 2:
The invention extracts and eliminates the pins and snap rings from the assembly, replacing them with an axial force application method. This removal of unnecessary components simplifies the manufacturing process and reduces costs while maintaining the reliability of the cylinder fixing.
3Reliability
If multiple components are used to fix the cylinder, then the cylinder is securely positioned, but manufacturing costs increase
Solution Approach 1:
By merging the stopper portion and cylinder head portion into one integrated component, the invention reduces the total number of parts that need to be manufactured, assembled, and quality-checked. This integration maintains secure cylinder positioning through the axial force mechanism while significantly reducing manufacturing costs associated with multiple discrete components.
Data Source
AI summary
The front fork of the present invention has a wheel-side bracket that closes another end of an inner tube which is movably inserted inside an outer tube from one end thereof; a cylinder provided inside the inner tube; and a head member that is fitted to the cylinder side on the opposite side from the wheel-side bracket, in which the cylinder and the head member are sandwiched, while subjected to an axial force, by a fastening portion formed on the inner tube and the wheel-side bracket.