Device holder
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Solution Overview
Problem
Existing device holders for stem devices under gravity effect are complex and costly to produce due to the need for cranked portions or slots that limit the pivoting movement of scissor legs, which also restrict the opening area of the device receptacle.
Innovation Solution
A device holder with pivotable clamping scissors featuring a U-shaped profile curve at the free ends of the scissor legs, allowing for a larger gripping surface and flexible adaptation to different device diameters, eliminating the need for complex stops and enabling variable adaptation and improved stability through offset leg segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cranked portions or slots are added to limit pivoting movement of scissor legs, then the holding stability is improved, but the device complexity and production cost increase
Solution Approach 1:
The patent removes the complex cranked portions or slots from the scissor leg structure. Instead of adding limiting features to the scissor legs themselves, the invention extracts the movement limitation function and implements it through the U-shaped profile curve of the gripping element, which naturally guides and limits the pivoting movement without requiring additional structural modifications to the scissor mechanism.
Solution Approach 2:
The U-shaped profile curve of the gripping element acts as a flexible guiding structure that allows controlled movement while limiting the pivoting range. This curved profile provides a smooth, continuous path for the scissor leg to follow, replacing rigid stops or slots with a more flexible geometric constraint that is simpler to manufacture and integrates seamlessly into the existing scissor mechanism.
2Reliability
If cranked portions or slots are added to limit pivoting movement, then the holding stability is improved, but the opening area of the device receptacle is reduced
Solution Approach 1:
By removing the cranked portions or slots from the scissor leg structure, the patent eliminates the space these features would occupy. The U-shaped profile curve of the gripping element provides movement limitation without intruding into the opening area, thereby maintaining maximum receptacle space while still ensuring stable holding through controlled pivoting motion.
Solution Approach 2:
The invention transitions from limiting movement through lateral stops or slots (horizontal dimension) to limiting movement through a vertical U-shaped profile curve. This dimensional shift allows the scissor leg to pivot freely within the opening area while the U-shaped profile, extending in the vertical direction, provides the necessary movement constraints without reducing the horizontal opening space.
3Adaptability or versatility
If the gripping surface is enlarged through U-shaped profile curve, then the adaptability to different diameters is improved, but the manufacturing complexity increases
Solution Approach 1:
The U-shaped profile curve is a simple geometric form that can be easily manufactured using standard bending or forming processes. The curvature provides increased gripping surface area and adaptability to different stem device diameters, while the simplicity of the U-shape (as opposed to complex cranked portions or slots) makes it straightforward to produce through conventional metalworking or plastic forming techniques.
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 solution simplifies production, enhances holding stability, and allows for secure clamping of stem devices with variable diameters, reducing production costs and improving the device holder's adaptability and usability.
Implementation Method 1
Device holder for clamping a stem device under gravity effect
Data Source
Figure 1
AI summary
The present invention relates to a tool holder (1) for clamping a handled tool under the influence of gravity, comprising a support element (2) on which a vertically pivotable clamping scissor (3) is arranged, the clamping scissor consisting of two scissor arms (4, 5) movable relative to each other, the angled ends of which are pivotably arranged in the support element (2), wherein the scissor arms (4, 5) cross each other and a receptacle (8) for the handled tool is formed between the free ends (6, 7) of the scissor arms (4, 5), wherein the free end (7) of one scissor arm (5) has a U-shaped profile, with a first arm segment (9) and a second arm segment (10) running parallel to it, and wherein the free end (6) of the other scissor arm (4) is arranged between the first arm segment (9) and the second arm segment (10).