Handtight Clamp with Dual-Spring Feedback Mechanism
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Solution Overview
Problem
Conventional clamps lack adjustability and feedback on applied pressure, leading to potential over-tightening or under-tightening issues, which can result in damage or objects falling.
Innovation Solution
A handtight clamp design featuring parallel rods with a moving handle and two coil springs of different compressibility, along with a semi-rigid jaw structure, allowing for adjustable pressure application and gradual compaction, preventing over-tightening and ensuring secure object holding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional clamps are used with fixed tightening mechanism, then the clamp structure is simple, but the clamp lacks adjustability and feedback on applied pressure
Solution Approach 1:
The clamp transitions from a fixed tightening mechanism to a dynamic system with a movable handle that can slide along parallel rods. This allows continuous adjustment of the jaw opening and applied pressure, providing adaptability while maintaining a relatively simple structure through the use of basic mechanical components like springs and sliding elements.
Solution Approach 2:
The invention changes the pressure parameter from fixed to variable by introducing coil springs with different bearing pressures and a movable handle system. This allows the user to adjust the applied pressure by moving the handle to different positions, achieving adaptability without significantly complicating the overall clamp structure.
2Reliability
If conventional clamps apply fixed pressure, then the clamp structure is simple, but over-tightening or under-tightening can occur causing damage or objects falling
Solution Approach 1:
The coil springs provide tactile feedback to the user during the tightening process. As the movable handle moves and compresses the springs, the user can feel the increasing resistance, which serves as feedback to prevent over-tightening. The different bearing pressures of the first and second coil springs create distinct feedback stages that help the user achieve proper tightening without damaging the clamped object.
Solution Approach 2:
The coil springs act as cushioning elements that gradually absorb the tightening force. The first coil spring with lower bearing pressure provides initial cushioning, while the second coil spring with higher bearing pressure provides additional cushioning at higher compression levels. This beforehand cushioning prevents sudden over-tightening and ensures secure object holding through gradual pressure application.
3Ease of operation
If gradual pressure application is implemented with multiple coil springs, then over-tightening is prevented, but the clamp mechanism becomes more complex
Solution Approach 1:
The pressure application mechanism is segmented into two distinct coil springs with different bearing pressures. The first coil spring handles lower pressure ranges with less bearing pressure, while the second coil spring handles higher pressure ranges with more bearing pressure. This segmentation allows for gradual and controlled pressure application, making the clamp easier to operate with precise pressure control while keeping each individual spring component simple.
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
Enables precise control of pressure application, preventing damage and ensuring secure object retention through adjustable and gradual pressure, reducing the risk of over-tightening or under-tightening.
Implementation Method 1
a first coil spring and a second coil spring around each of the two parallel rods, the first coil spring having less bearing pressure than the second coil spring
Data Source
AI summary
A handtight clamp comprising two parallel rods that are press-fit into a stable handle and which have a moving handle that is movable across the parallel rods. The handtight clamp also comprising a first coil spring and a second coil spring around the two parallel rods, the first coil spring having less bearing pressure than the second coil spring, and the first coil spring laying adjacent to the moving handle. The handtight clamp additionally comprising a jaw extending from the stable handle and the moving handle, the jaw having a rigid inner jaw portion and a semi-rigid outer jaw portion.