The present disclosure relates to improvements in a cutting device/apparatus by increasing its tensile strength while still allowing it to retain the ability to flex or bend. For example, rotary cutting machines/devices utilizing rotating flexible tube type embodiments to cut materials can be significantly improved by increasing the tensile strength of the flexible tube type embodiment, but also allowing it to still bend as needed. Both safety and reliability can be improved.
The background description provided herein is for the purpose of generally presenting the context of the disclosure. Work of any named inventors, to the extent it is described in this background section, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present disclosure.
In the past, embodiments rotated around an axis to cut materials such as plant vegetation have been constructed of different types of plastic, nylon, and other materials to provide a safer material for cutting as well as the needed ability to flex.
The problem with this is the plastic, nylon, or other material the flexible tube type embodiment is constructed of is very vulnerable to snapping off or breaking
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If we were to measure the length of the embodiment for distances of the above (
Additionally, as the rotation of the rotating cutting device increases in frequency (rotations per second), the centrifugal force applied to the flexible tube type embodiment stretches its atomic structure making it even more vulnerable to breaking off when hitting a stone or obstacle of a larger mass.
With carbon fiber or like materials having greater tensile strength than steel, and especially greater strength than the tensile strength of nylon, plastic, or other similar materials, the limits of the tensile strength of the carbon fiber are met before the limits of tensile strength of the material the embodiment is made of, and so the “stretching” of the material becomes limited, helping it to retain its shape longer and providing a safer and more reliable embodiment. And with carbon fiber or like materials having the unique ability to compress, flex or bend, it not only adds tensile strength stronger than steel, but also allows it to easily flex when hitting an object.
Other materials can be fused to a tube type embodiment to increase its tensile strength, but this is usually done at the cost of sacrificing bendability, compression, and safety. For example, in
The present invention solves this problem by creating a flexible tube type embodiment with cross-over points along its axis in incremental locations
When these fibers wrap an embodiment, they have crossover points (the strongest points on the axis), and orthogonal to these cross over points, are the weakest points along the axis.
While the overall strength of the flexible tube type embodiment is greatly increased with the present invention, when a piece does become dislodged, the weak points by design become the default place to break off, creating a more balanced device as well.
As for safety, as the ends of tube type embodiments break apart, they can leave sharp ends flying off like a projectile missile. With the present disclosure, if the asymmetrical intertwined carbon fibers fused to the embodiment slightly protrude out from the surface of the embodiment, the v's that are formed at the crossover points try to compress the air as a piece is broken free and flowing through the air. Thus, these v's create resistance for the loose strand of the tube-type flowing through the air, limiting its flight and providing a safer environment.
Utilizing linear embodiments comprised of atomic structures with characteristics of superior tensile strength as well as compressibility such as carbon fiber; fused into a flexible tube type rotating embodiment, provides a flexible tube type embodiment having the ability to flex while cutting with superior strength, reliability, and safety.
Double helix intertwined carbon fiber strands can be fused into the embodiment as well along its axis creating resistance. Double helix fused, molded, or applied carbon fibers have the disadvantage over asymmetrical intertwined carbon fibers in that as centrifugal force is applied to the tube type embodiment, the strands of fiber try to straighten out, creating a torque on the inner atomic structure of the material the flexible tube type embodiment is made of, squeezing it and twisting it at the same time.
A double helix is a set of parallel helices intertwined about a common axis. With a double helix, both fibers are intertwined and parallel to each other along the axis of the embodiment, but never cross over each other, so they try to twist the embodiment as they straighten out from the centrifugal force. This places a torque on the embodiment.
Asymmetrical intertwined fibers are parallel to the axis of the embodiment, but orthogonal to each other and do cross over each other periodically.
The primary objective of the present invention is to provide an improved cutting device/apparatus for rotary cutting machines/devices.
Yet another objective of the present invention is to provide improved methods for creating an improved cutting device/apparatus for rotary cutting machines/devices.
For a more complete understanding of the disclosure, reference should be made to the following detailed description and accompanying drawing figures, in which like reference numerals identify like elements in the figures, and in which:
Hereinafter, embodiments of the present application are described in detail. However, these embodiments are exemplary, and this disclosure is not limited thereto.
The unique atomic structure of carbon fiber or other similar materials with superior tensile strength and an ease of compressibility, fused, molded, wrapped, or applied to a flexible tube type embodiment, increases the safety and reliability of the flexible tube type embodiments when used in cutting machines/devices. For this patent application, the term “tube type” is intended to include both hollow tubes, as well as solid tubes. Additionally, “tube type” is intended to include cylindrically formed devices as well linear formed devices with disproportional widths and overall dimensions. And while the words “carbon fiber” are used throughout this description, carbon fiber is intended to include carbon fiber or like materials with high tensile strength but the ability to also compress.
The superior tensile strength of carbon fiber or like materials resists elongation. And the unique ability for such materials to compress keeps internal structures that traditionally work against each other when trying to bend or flex, actually working with each other. The end result is an improvement in the reliability and safety of a flexible tube type embodiment.
carbon fibers fused, molded, wrapped, or applied asymmetrically to a flexible tube type embodiment balance the “torques” applied to the axis of the embodiment as the centrifugal forces try to stretch it. With carbon fiber stretching at a different rate than the embodiment, if only one carbon fiber were fused into the tubular type embodiment, the tube type embodiment would try to rotate on its axis creating a “torque” propagating through its atomic structure. Adding fibers fused, molded, wrapped, or applied in the same direction yields the same result, such as the double helix. This torque would eventually break the embodiment apart, or at least weaken its internal structure. Having carbon fibers fused, molded, wrapped or applied and asymmetrically intertwined balances this torque.
Asymmetrical intertwined carbon fibers fused, molded, wrapped, or applied to a flexible tube type embodiment create torques of equal magnitude, but at angles opposite each other with respect to the axis of the embodiment. This applied torque tries to stretch the material of the tube type embodiment parallel to its axis as a centrifugal force is applied. As a rotary head spins, the centrifugal force causes the asymmetrical intertwined carbon fibers to stretch with respect to the tube type embodiment they are fused onto. Since they are intertwined onto the tube type embodiment, they will try to straighten as the centrifugal force is applied; much like a limp string when rotated around an axis becomes straight as long as it is spinning.
Additionally, since the carbon fibers are of a different atomic make-up than the tube-type material, when a centrifugal force is applied, their expansions will be at a different rate, creating another torque. That is, the expansions of the carbon fibers will be the same, but different than the tube-type material. When this happens, the asymmetrical or double helix intertwined wrapped carbon fibers actually try to squeeze the tube type embodiment together, making it smaller, stronger, and a more efficient cutter with a more concentrated mass. A smaller tube type embodiment with the more concentrated mass has to cut through less surface area, improving its efficiency.
Asymmetrically fused, molded, wrapped, or applied intertwined fibers and double helix fused, molded, wrapped, or applied intertwined fibers have a similar but different effect on the tube type embodiment as a centrifugal force is applied. Double helix fused, molded, wrapped, or applied embodiments place a squeezing, twisting and stretching torque on the tube type embodiment. Asymmetrically intertwined embodiments place a squeezing and stretching torque on the tube type embodiment, but not a twisting torque.
With asymmetrically intertwined embodiments, fusing, molding, wrapping, or applying the carbon fibers at the same number of twists per meter creates “break points” along the flexible tube type embodiment that are an equal distance from the rotary head. The incremental places the two carbon fibers or like material cross over (
An alternative embodiment
With the present disclosure, if the asymmetrical intertwined carbon fibers fused to the embodiment slightly protrude out from the surface of the embodiment, the v's that are formed at the crossover points try to compress the air as a piece is broken free and flowing through the air. Thus, these v's create resistance for the loose strand of the tube-type flowing through the air, limiting its flight and providing a safer environment.
This application claims the benefit of U.S. provisional No. 62/340,374 filed May 23, 2016 which is herein incorporated by reference.