Example embodiments generally relate to outdoor equipment and, more particularly, to a chute rotation assembly for use with a device that employs a chute for directing discharge material such as snow.
Lawn care and other outdoor tasks associated with grooming and maintaining property are commonly performed using various tools and/or machines that are configured for the performance of corresponding specific tasks. Certain tasks, like snow removal, are typically performed by snow removal devices. The snow removal devices may, in some cases, be walk-behind models. However, snow removal device attachments can sometimes be added to lawn tractors or other riding lawn care vehicles as well.
Walk behind snow removal devices may be single stage or dual stage snow removal devices. A single stage snow removal device may include a high speed auger blade that is rotated at the front of the snow removal device. The rotation of the auger blade may intake snow and impart momentum on the snow to eject the snow through a chute all in one stage of operation. With a dual stage snow removal device, the auger blade may feed snow into an impeller in a first stage, and the impeller may impart momentum on the snow, in a second stage, to eject the snow through a chute. In such a dual stage example, the auger may operate at lower speeds because the impeller will provide a momentum boost for snow ejection.
The chute in either a single or dual stage snow removal device may be configured to be locally repositioned in some cases. For example, the operator may walk around from the operating position (e.g., behind the snow removal device and proximate to the handles and control console) to the front or side of the snow removal device and manually adjust the direction the chute faces.
Accordingly, in order to improve operator satisfaction in connection with using a snow removal device, some example embodiments may provide a chute rotation assembly. Such a chute rotation assembly may provide operators with a relatively easy and reliable way to position the chute from a handle assembly of the snow removal device.
In one example embodiment, a snow removal device is provided. The snow removal device may include an engine assembly operably coupled at least in part to a frame of the snow removal device. The snow removal device may further include a mobility assembly operably coupled to the frame and the engine assembly to provide mobility of the snow removal device responsive at least in part to operation of the engine assembly. The snow removal device may even further include an ejection assembly that includes a chute for ejecting material from the snow removal device, and a handle assembly that includes a lever assembly. Moreover, the snow removal device may also include a chute rotation assembly operably coupled to the chute of the ejection assembly. The chute rotation assembly may include a cable system, the cable system operably coupling the lever assembly to the chute rotation assembly. The chute rotation assembly may also include a disc clutch assembly configured to move between an engaged position and a disengaged position in response to actuation of the lever assembly, where when the disc clutch assembly is in the disengaged position, the chute is enabled to rotate between a plurality of positions.
In a further example embodiment, a chute rotation assembly for a snow removal device is provided. The chute rotation assembly may include a cable system, the cable system operably coupling a lever assembly of the snow removal device to the chute rotation assembly. The chute rotation assembly may also include a disc clutch assembly configured to move between an engaged position and a disengaged position in response to actuation of the lever assembly, where when the disc clutch assembly is in the disengaged position, a chute of the snow removal device is enabled to rotate between a plurality of positions.
Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
Some example embodiments now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all example embodiments are shown. Indeed, the examples described and pictured herein should not be construed as being limiting as to the scope, applicability or configuration of the present disclosure. Rather, these example embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like reference numerals refer to like elements throughout. Furthermore, as used herein, the term “or” is to be interpreted as a logical operator that results in true whenever one or more of its operands are true. As used herein, operable coupling should be understood to relate to direct or indirect connection that, in either case, enables functional interconnection of components that are operably coupled to each other.
Some example embodiments may improve an operator's experience associated with operating a snow removal device generally by improving the reliability of and the operator's experience associated with manipulating the position of a chute on the snow removal device. In an example embodiment, a chute rotation assembly may be provided that enables the user to adjust a position of the chute via a lever assembly that is disposed at the handle assembly of the snow removal device. Accordingly, the lever assembly may be configured to disengage and engage a disc clutch assembly of the chute rotation assembly in order to control rotation of the chute. Thus, the chute rotation assembly may be configured to move the disc clutch assembly between a disengaged position, in which the chute is configured to rotate between a plurality of positions, and an engaged position, in which the chute is not configured to rotate between the plurality of positions. The chute rotation assembly may be configured such that certain locking pieces, such as a pawl or latch, are not required to move the disc clutch assembly between the engaged and disengaged positions. Rather, the disc clutch assembly is configured such that it can simply and seamlessly move between the disengaged position and the engaged position based on the relative positions of two discs. Because there are no separate locking pieces locking the disc clutch assembly in the engaged position, any external force exerted on the chute (e.g., when an operator tries to manually position the chute) when the disc clutch assembly is in the engaged position will not cause any breakage of any parts or pieces of the chute rotation assembly. Thus, the chute rotation assembly may be configured to enable rotation of the chute while providing improved reliability and simplicity whenever the operator desires to rotate the chute.
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As mentioned above, the snow removal device 10 may include an engine assembly 20 operably coupled to a frame 15 or chassis of the snow removal device 10. The engine assembly 20 may include an engine 22. The engine 22 may be a gas-powered combustion engine or another type of engine, such as a battery-powered electric motor. The engine 22 may be supported by the frame 15 of the snow removal device 10. The engine 22 may be configured to selectively provide power to the mobility assembly 40 and the ejection assembly 60.
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In an example embodiment, the chute rotation assembly 80 may be operably coupled between a portion of the frame 15 of the snow removal device 10 and the chute 64 of the ejection assembly 60. As mentioned above, the chute 64 may be configured to rotate between a plurality of positions via the chute rotation assembly 80. As will be described in greater detail in relation to
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The plurality of teeth 88 of each of the fixed disc 84 and the chute rotator disc 86 may be shaped and configured to enable the intermeshing of the plurality of teeth 88 of each of the fixed disc 84 and the chute rotator disc 86 thereby enabling the engagement of the fixed disc 84 and the chute rotator disc 86. The teeth 88 of the fixed disc 84 may extend radially around a circumference of the fixed disc 84. Moreover, in some example embodiments, each of the plurality of teeth 88 of the fixed disc 84 may be configured to extend from a first edge 92 of the fixed disc 84 to a second edge 92 of the fixed disc 84. Even further, each of the plurality of teeth 88 of the fixed disc 84 may be configured to extend perpendicular from a surface of the fixed disc 84 (e.g., extending out of the first plane and toward the second plane).
The teeth 88 of the chute rotator disc 86 may extend radially around a perimeter of the chute rotator disc 86. In some cases, the teeth 88 of the chute rotator disc 86 may be disposed on a lip portion 96 of the chute rotator disc 86. Moreover, in some example embodiments, each of the plurality of teeth 88 of the chute rotator disc 86 may be configured to extend perpendicularly away from a surface of the chute rotator disc 86. In other words, the plurality of teeth 88 of each of the fixed disc 84 and the chute rotator disc 86 may be configured to extend out of the respective plane in which the fixed disc 84 and the chute rotator disc 86 lie (e.g., out of the second plane and toward the first plane). The orientation and shape of the plurality of teeth 88 of each the fixed disc 84 and the chute rotator disc 86 enable the intermeshing of the plurality of teeth 88 of the fixed disc 84 with the plurality of teeth 88 of the chute rotator disc 86. The intermeshing of the plurality of teeth 88 enable the engagement of the fixed disc 84 and the chute rotator disc 86 in response to the locking of the lever assembly 220 via the user. Furthermore, the intermeshing of the plurality of teeth 88 is configured to prevent rotation of the chute 64 without the use of separate locking devices, such as a pawl or latch, attached to the either of the fixed disc 84 or the chute rotator disc 86. In cases where a user attempts manual rotation of the chute 64 when the fixed disc 84 and the chute rotator disc 86 are engaged, there would likely be no breaking of parts. Rather, the plurality of teeth 88 of the chute rotator disc 86 would slip relative to the plurality of teeth 88 of the fixed disc 84. Thus, even in cases where the user attempted to manually rotate the chute 64, there would be less of a chance of breaking or damaging the chute rotation assembly 80.
In some cases, the teeth 88 of the chute rotator disc 86 and teeth 88 of the fixed disc 84 may have different radial lengths. For example, as shown in
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In some example embodiments, the snow removal device 10 may further include a console 210 disposed to extend between the arms 202. In some example embodiments, the console 210 may provide some degree of structural support for respective second ends 208 of the arms 202. Alternatively or additionally, the console 210 may provide a structure to which accessories or components of the snow removal device 10 may be added. For example, in some embodiments, the console 210 may provide a structure for supporting the lever assembly 220.
The lever assembly 220 may include a chute rotation lever 230, a machine speed lever 240, and a chute deflector lever 250 Accordingly, the chute rotation lever 230 may be configured to control the rotation of the chute 64, as desired by the user. The machine speed lever 240 may be configured to control the speed of the snow removal device 10, and the chute deflector lever 250 may be configured to control the height of the chute deflector 66.
In some cases, the chute rotation lever 230 may include a trigger 232 that may be configured to unlock the chute rotation lever 230. It should be understood that in some embodiments the trigger 232 may be configured to extend toward the rear of the snow removal device 10 (e.g., in the direction toward the least two arms 202), as shown in
In response to actuation of the trigger 232 of the chute rotation lever 230, the chute rotation lever 230 may become unlocked thereby causing a movement of the first portion 91 of the cable assembly 90, which causes the disengagement of the chute rotation assembly 80. Furthermore, in response to the unlocking of the chute rotation lever 230 via the trigger 232, the chute rotation lever 230 may be configured to move left and right in a slot 234 that houses the chute rotation lever 230. In other words, after the actuation of the trigger 232 of the chute rotation lever 230 causes disengagement of the chute rotation assembly 80, the left and right movement the chute rotation lever 230 may cause a corresponding movement of the second portion 93 of the cable assembly 91 thereby enabling rotation of the chute 64. In other words, the user of the snow removal device 10 may actuate the trigger 232 of the chute rotation lever 230 to disengage the chute rotation assembly 80 to enable rotation of the chute 64. Upon the disengagement of the chute rotation assembly 80, the user may pivot the chute rotation lever 230 left or right along the slot 234 to cause a corresponding rotation of the chute 64. For example, a movement of the chute rotation lever 230 in a left direction may cause a corresponding movement of the chute 64 to the left or in a counter-clockwise direction, and a movement of the chute rotation lever 230 in a right direction may cause a right or clockwise direction movement of the chute 64.
Example embodiments therefore represent a snow removal device. The snow removal device may include an engine assembly operably coupled at least in part to a frame of the snow removal device. The snow removal device may further include a mobility assembly operably coupled to the frame and the engine assembly to provide mobility of the snow removal device responsive at least in part to operation of the engine assembly. The snow removal device may even further include an ejection assembly comprising a chute for ejecting material from the snow removal device, and a handle assembly that includes a lever assembly. Moreover, the snow removal device may also include a chute rotation assembly operably coupled to the chute of the ejection assembly. The chute rotation assembly may include a cable system, the cable system operably coupling the lever assembly to the chute rotation assembly. The chute rotation assembly may also include a disc clutch assembly configured to move between an engaged position and a disengaged position in response to actuation of the lever assembly, where when the disc clutch assembly is in the disengaged position, the chute is enabled to rotate between a plurality of positions.
In some embodiments, additional optional structures and/or features may be included or the structures/features described above may be modified or augmented. Each of the additional features, structures, modifications, or augmentations may be practiced in combination with the structures/features above and/or in combination with each other. Thus, some, all or none of the additional features, structures, modifications, or augmentations may be utilized in some embodiments. Some example additional optional features, structures, modifications, or augmentations are described below, and may include, for example, that the disc clutch assembly may include a fixed disc and a chute rotator disc, where when the fixed disc and the chute rotator disc are in the disengaged position, the chute may be enabled to rotate between the plurality of positions. Alternatively or additionally, the fixed disc may be configured to lie in a first plane, and where the chute rotator disc may be configured to lie in a second plane, the first plane and the second plane being parallel. In some cases, the fixed disc and the chute rotator disc may each include a plurality of teeth, where the plurality of teeth of each of the fixed disc and the chute rotator disc may be configured to be intermeshed when the fixed disc and the chute rotator disc are in the engaged position such that the chute is not enabled to rotate between the plurality of positions. Alternatively or additionally, each of the plurality of teeth may be configured to extend perpendicularly away from a respective surface of the fixed disc or the chute rotator disc out of the respective first plane or second plane. Alternatively or additionally, the plurality of teeth may be metal. In other example embodiments, the disc clutch assembly may include a release lever, where a portion of the release lever may be operably coupled to a first portion of the cable assembly. Alternatively or additionally, the disc clutch assembly further includes a disc clutch bracket, where the release lever may be configured to extend across a diameter of the disc clutch bracket, and where a first end of the release lever may be pivotably coupled to the disc clutch bracket, and where a second end of the release lever may be operably coupled to the first portion of the cable assembly. Alternatively or additionally, in response to actuation of the lever assembly, the release lever may be configured to pivot in a direction toward the disc clutch bracket thereby causing the disc clutch assembly to move from the engaged position to the disengaged position. In some cases, the disc clutch assembly may further include a biasing mechanism, where the biasing mechanism may be operably coupled to the release lever and the disc clutch bracket, where in response to actuation of the lever assembly, the release lever may pivot to overcome a biasing force of the biasing assembly thereby causing the disc clutch assembly to move from the engaged position to the disengaged position. Alternatively or additionally, the biasing mechanism may be a spring. In further example embodiments, the chute may include a deflector configured to control a height of a discharge stream of the ejected material. Alternatively or additionally, the lever assembly may include a chute rotation lever and a chute discharge lever, where the chute rotation lever may be configured to control the chute rotation assembly, and where the chute discharge lever may be configured to control the deflector. In some cases, the chute rotation lever may include a trigger, where in response to actuation of the trigger, the disc clutch assembly may be configured to move from the engaged position to the disengaged position.
Many modifications and other embodiments of the inventions set forth herein will come to mind to one skilled in the art to which these inventions pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Moreover, although the foregoing descriptions and the associated drawings describe exemplary embodiments in the context of certain exemplary combinations of elements and/or functions, it should be appreciated that different combinations of elements and/or functions may be provided by alternative embodiments without departing from the scope of the appended claims. In this regard, for example, different combinations of elements and/or functions than those explicitly described above are also contemplated as may be set forth in some of the appended claims. In cases where advantages, benefits or solutions to problems are described herein, it should be appreciated that such advantages, benefits and/or solutions may be applicable to some example embodiments, but not necessarily all example embodiments. Thus, any advantages, benefits or solutions described herein should not be thought of as being critical, required or essential to all embodiments or to that which is claimed herein. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
This application claims priority to U.S. application No. 62/549,050 filed Aug. 23, 2017, the entire contents of which are hereby incorporated by reference in its entirety.
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PCT/IB2018/056365 | 8/22/2018 | WO |
Publishing Document | Publishing Date | Country | Kind |
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WO2019/038695 | 2/28/2019 | WO | A |
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