Clamping-Wing Tool Connector for Fast Changes and Low Vibration
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Solution Overview
Problem
Existing tool devices for hand-held power tools lack efficient mechanisms for minimizing vibrations and ensuring secure, rapid tool changes without the need for additional securing elements, leading to suboptimal performance and compatibility issues with conventional power tools.
Innovation Solution
A tool device with a connector system featuring clamping wings that provide a clearance and are designed to coincide with the output shaft of the power tool, allowing for vibration-minimizing operation and secure attachment without additional securing elements, ensuring compatibility with conventional power tools through a minimum delimitation circle design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a tool device uses a connector device with clearance and clamping wings for rapid tool changes, then tool change speed and operational efficiency are improved, but vibration during operation increases
Solution Approach 1:
The connector device is segmented into multiple functional elements: clamping wings for rapid attachment/detachment, and vibration damping elements positioned between the tool device and power tool. This segmentation allows the clamping wings to provide quick tool changes while the separate vibration damping elements independently address vibration issues without interfering with the rapid tool change mechanism.
Solution Approach 2:
Vibration damping elements are introduced as intermediary components between the tool device and the power tool output shaft. These intermediaries absorb and reduce vibrations transmitted through the connector device, while allowing the clamping wings to maintain their clearance-based rapid attachment mechanism. The damping elements mediate between the need for quick tool changes and the need to minimize vibration.
2Object-affected harmful factors
If the connector device is designed with clearance for vibration minimization, then vibration is reduced, but the secure attachment and torque transmission are compromised
Solution Approach 1:
The connector device separates the vibration reduction function (clearance and damping elements) from the secure attachment function (clamping wings with delimitation edges). The clamping wings provide form-fitting engagement for reliable torque transmission, while the clearance and damping elements independently handle vibration reduction without compromising the mechanical interlocking of the clamping mechanism.
Solution Approach 2:
Vibration damping elements serve as intermediaries that reduce vibrations while allowing the clamping wings to maintain full engagement for secure attachment. The damping elements are positioned to absorb vibrations without interfering with the form-fitting connection between the clamping wings and the power tool output shaft, thus maintaining both vibration reduction and secure attachment simultaneously.
3Object-affected harmful factors
If the clamping wing extends along the orthogonal plane to minimize vibration, then vibration is reduced, but the device complexity increases
Solution Approach 1:
The vibration damping elements are merged with the clamping wing structure itself, forming an integrated connector device. The damping elements are positioned on the clamping wings or in direct association with them, combining the attachment function and vibration reduction function into a single unified component rather than separate assemblies, thus reducing overall device complexity.
Solution Approach 2:
The clamping wing is designed to serve multiple functions: providing form-fitting engagement for secure attachment, enabling rapid tool changes through its delimitation edges, and incorporating vibration damping elements to reduce vibrations. This multi-functionality eliminates the need for separate components for each function, simplifying the overall connector device structure while achieving vibration reduction.
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 enables secure, vibration-minimizing operation of the tool device by effectively transmitting torque and minimizing vibrations, while allowing for rapid tool changes and compatibility with a wide range of conventional power tools, enhancing operational efficiency and safety.
Implementation Method 1
The connector device has at least one clamping wing which in the radial direction of the tool rotation axis at least partially delimits the clearance
Implementation Method 2
The connector device has a spring element which is disposed in the clearance and which in the axial direction of the tool rotation axis is compressed between the tool receptacle device and the operating region
Data Source
AI summary
A tool device for a hand-held power tool, which can be operated such that the tool device is rotated about an output shaft of a tool-holding device, has at least one connecting device, which is detachably connected to an output shaft of the power tool. The connecting device is fastened to the tool-holding device so that a drive axis of the output shaft and a tool axis of rotation substantially coincide. The connecting device has a cut-out and at least one clamping wing, which at least partly bounds the cut-out in the radial direction of the tool axis of rotation and which is bounded substantially in the direction radial to the tool axis of rotation by a first bounding edge, which lies on a first bounding circle around the tool axis of rotation. The clamping wing extends at least substantially along a plane orthogonal to the tool axis of rotation.