Fluid Pressure Rod Assembly With Integrated Packing and No Hard Piston
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Solution Overview
Problem
Conventional fluid pressure devices require complex assembly processes and specific tools for piston and piston rod assembly, which complicates the assembly process and increases the consumption of pressurized fluid.
Innovation Solution
A rod assembly with a packing attached to the outer circumferential part of the rod member, which includes a stopper receiving groove, magnet receiving groove, and a damper member, allowing for simplified assembly without specialized tools and reducing pressurized fluid consumption by increasing the rod member's outer diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional piston and piston rod assembly is used, then the device can function properly, but the assembly process becomes complicated and requires specific tools
Solution Approach 1:
The invention extracts the piston function from the traditional piston-piston rod assembly and integrates it directly into the rod member. The rod member itself becomes the functional element that reciprocates in the cylinder bore, eliminating the need for a separate piston component and its complex assembly requirements.
Solution Approach 2:
The rod member is designed to serve multiple functions: it acts as both the structural rod and the piston-like reciprocating element. By integrating the sealing surface and reciprocating function into the rod member itself, the design reduces the number of components while maintaining proper device function.
2Use of energy by moving object
If a conventional piston assembly is used, then the device operates correctly, but pressurized fluid consumption increases
Solution Approach 1:
The invention removes the traditional piston assembly that creates excessive friction and fluid consumption. By having the rod member reciprocate directly with minimal clearance and simplified sealing, the system reduces drag and improves energy efficiency.
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 simplified assembly process eliminates the need for a hard piston member and reduces pressurized fluid consumption, enabling easy hand assembly and energy savings through reduced weight and fluid usage.
Implementation Method 1
a packing attached to an outer circumferential part of the rod member and configured to slide along the slide hole
Implementation Method 2
The packing may also function as a damper configured to relieve impact occurring when the rod member reaches a stroke end
Data Source
AI summary
A rod assembly for a fluid pressure cylinder has a rod member and a packing that is mounted on an outer circumferential part of the rod member and slides along a slide hole. Assembly is simple because a conventional hard piston is not used. The assembly can be carried out simply by hand without the use of a dedicated tool. Thus, the rod assembly simplifies assembly work.