Hand Rivet Tool with High-Pressure Relief and Rotating Nose
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Solution Overview
Problem
Existing hand-operated rivet setting tools require significant manual effort to overcome high pressure during the riveting process, especially when setting rivets, due to build-up pressure in the pump assembly, which can lead to user fatigue and inefficiency.
Innovation Solution
A hand-operated rivet setting tool with a high-pressure relief subassembly and a 360-degree rotating nose tube, featuring a pump assembly with a hydraulic cylinder and flexible reservoir, and a lever assembly that reduces additional exertion by allowing fluid return and adjustment, enabling efficient rivet setting with reduced operator strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high pressure is maintained in the pump assembly during riveting, then rivet setting effectiveness is improved, but manual effort required increases significantly
Solution Approach 1:
The high-pressure relief subassembly extracts and releases excess pressure from the pump assembly through a relief valve mechanism. When pressure reaches a predetermined threshold, the relief valve opens to discharge fluid, preventing pressure buildup that would otherwise require excessive manual effort to overcome, thus resolving the contradiction between maintaining effective pressure and reducing operator strain
Solution Approach 2:
The system dynamically changes the pressure parameter by allowing it to build up to an optimal level for rivet setting, then automatically reducing it through the relief mechanism. This parameter modulation enables effective riveting at peak pressure while minimizing sustained manual effort through automated pressure regulation
2Adaptability or versatility
If the nose tube is fixed in position, then structural simplicity is maintained, but adaptability for different riveting angles is limited
Solution Approach 1:
The nose tube transitions from a fixed structure to a dynamic, rotatable component that can be positioned at various angles. The rotation mechanism allows the nose tube to adapt to different riveting orientations while maintaining a relatively simple construction through the use of a universal joint or pivot connection, resolving the contradiction between structural simplicity and angular adaptability
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 tool significantly reduces the manual effort required to set rivets by managing pressure effectively, allowing for efficient operation and minimizing user fatigue through the high-pressure relief subassembly and 360-degree rotation, enhancing overall usability and productivity.
Implementation Method 1
a pump assembly, connected to a flexible reservoir, the front assembly for setting a rivet, having a nose tube connected to a hydraulic cylinder of the pump assembly
Implementation Method 2
the pump assembly further comprises a high-pressure relieve subassembly which is operationally connected to the lever assembly. the high-pressure relieve subassembly is sufficiently designed to substantially eliminate additional exertion required to bring the handles together
Data Source
AI summary
A hand-operated rivet setting tool, having an upper handle, a lower handle, a housing which is connected to the lower handle at its first end and houses a pump assembly and a flexible reservoir, the pump assembly, connected to a flexible reservoir, the front assembly for setting a rivet, having a nose tube connected to a hydraulic cylinder of the pump assembly, a lever assembly, wherein the lever assembly and at least one of the handles are operationally connected to the pump assembly, wherein the pump assembly is sufficiently designed to advance the hydraulic cylinder with the nose tube to set the rivet when the lever of the lever assembly is in a first position, and wherein the pump assembly is sufficiently designed to open a passage for oil to return into the flexible reservoir and the hydraulic cylinder with the nose tube to retrieve toward the housing when the lever of the lever assembly is in a second position.