Adjustable Cutter Clamp Geometry for Shorter Guide Bar Cutting
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Solution Overview
Problem
Existing cutter clamps do not effectively reduce the risk of kick-back of the guide bar and are not versatile enough to accommodate different types of power cutters, particularly those with smaller guide bars.
Innovation Solution
A cutter clamp design featuring arcuate arm parts that adjustably enclose a pipe's circumference, equipped with a locking screw for secure clamping and a hollow rod for pivoting the power cutter, allowing for easy attachment and adjustment to various pipe dimensions and power cutter types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a longer guide bar is used to accommodate larger pipe diameters, then the cutting capability is improved, but the risk of kick-back increases and the guide bar becomes harder to handle
Solution Approach 1:
The cutter clamp divides the clamping function into multiple contact points (at least three contact points) distributed around the pipe circumference. This segmentation allows the same clamp structure to effectively accommodate different pipe diameters without requiring a longer guide bar, thereby reducing kick-back risk while maintaining cutting capability across various pipe sizes.
Solution Approach 2:
The cutter clamp is designed with adjustable arm parts and multiple contact points that can adapt to different pipe diameters. This universal design allows a single clamp configuration to work with various pipe sizes, eliminating the need for specialized equipment with longer guide bars for larger pipes, thus reducing kick-back risk while maintaining versatility.
2Adaptability or versatility
If a longer guide bar is used to increase cutting reach, then the cutting angle range is improved, but the guide bar becomes harder to handle and kick-back risk increases
Solution Approach 1:
The clamp structure segments the cutting support function into multiple contact points around the pipe, allowing the power cutter to achieve various cutting angles through the adjustable arm positions rather than requiring a longer guide bar. This maintains guide bar length within manageable limits while expanding cutting angle capability.
Solution Approach 2:
The arm parts of the cutter clamp are designed to be adjustable and reconfigurable, allowing dynamic adaptation to different cutting angles and pipe diameters. This dynamic adjustment capability provides the versatility of a longer guide bar while maintaining the ease of handling associated with a standard-length guide bar.
3Manufacturing precision
If a fixed clamping structure is used to ensure stable working positions, then cutting precision is improved, but the device cannot accommodate different pipe dimensions
Solution Approach 1:
The cutter clamp employs adjustable arm parts that can be configured to match different pipe diameters while maintaining stable contact points. This dynamic adjustability allows the clamp to provide precise, stable working positions for each specific pipe size, combining cutting precision with adaptability across various dimensions.
Solution Approach 2:
The clamp structure allows modification of geometric parameters (arm positions, contact point locations) to accommodate different pipe dimensions. By changing these parameters rather than the fundamental structure, the system maintains stable, precise clamping for each pipe size while adapting to various dimensions.
4Adaptability or versatility
If a complex attachment mechanism is used to secure different power cutter types, then versatility is improved, but the attachment process becomes more complicated
Solution Approach 1:
The cutter clamp employs a standardized mounting rod interface that can accommodate different types of power cutters (chain saws, ring saws, etc.) without requiring complex specialized attachment mechanisms for each cutter type. This universal interface simplifies the attachment process while maintaining versatility across power cutter types.
Solution Approach 2:
The attachment mechanism is segmented into a standardized mounting rod component that interfaces with the power cutter and the clamp body. This segmentation creates a simple, repeatable attachment interface that reduces complexity while enabling compatibility with various power cutter types through the same standardized connection.
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 design enables the use of shorter guide bars, reducing kick-back risk and enhancing cutting angle precision, while being adaptable to different pipe dimensions and power cutters, including ring saws, with a secure and easy attachment mechanism.
Implementation Method 1
a locking screw that is rotatably attached to a first screw holder and is arranged to engage threads comprised in a second screw holder such that turning the locking screw enables the adjustment of the arm parts
Implementation Method 2
at least one hollow rod arranged for receiving a mounting rod of a power cutter in a pivoting manner
Implementation Method 3
the arm parts are arcuate and arranged to adjustably at least partially enclose a major part of a circumference having a center
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present disclosure relates to a cutter clamp (8, 37) that comprises a first arm part (10, 39) and a second arm part (11, 40), where the arm parts (10, 11; 39, 40) are arcuate and arranged to adjustably at least partially enclose a major part of a circumference (57, 63) having a center (58, 64). The cutter clamp (8, 37) comprises at least one hollow rod (21, 22; 48, 62) arranged for receiving a mounting rod (36) for a power cutter(1, 56) in a pivoting manner. The smaller circumference the arm parts (10, 11; 39, 40) are adjusted for, the closer to the center (58, 64) said hollow rod (21, 22; 48, 62) is moved. The present disclosure also relates to a cutter clamp attachment device (68), a cutter clamp kit and a cutter clamp holding frame (76).