Patent Application
20230124772
This application claims priority to and benefit of Canadian Patent Application Serial No. 3,134,283 filed on Oct. 14, 2021, which is hereby incorporated by reference.
The present disclosure generally relates to adjustable levers of continuously variable transmission drive pulleys, and in particular to an adjustable lever for a centrifugal actuator of a pDrive clutch. In certain embodiments, the adjustable lever may be used in snowmobile drivetrains.
Many recreational vehicles, such as snowmobiles, have a continuous variable transmission (CVT). Recent advances in CVT technology include redesigned drive pulleys (e.g. pDrive clutches) that include centrifugal actuators, such as described in U.S. Pat. No. 9,267,580.
Although these new drivetrain systems have resulted in improved operator experience, there have been issues with proper calibration and adjustability in the clutching, particularly for certain applications and functionalities (e.g. a high rpm tune, riding at different elevations, etc.). This has resulted in both performance and response limitations, particularly when shifting gears. For example, a snowmobile operator may have to apply inconsistent force to the throttle lever to change the rotation speed of the drive pulley. Since changes in terrain require the ability to quickly shift gears in a reliable manner and snowmobile operators may become adapted to having the throttle lever in a consistent position when changing gears, having to apply more or less force may be disruptive to the operator's experience.
Tuning of a CVT clutch can involve many factors. For example, there are manufactures that provide replacement arms (flyweights) for centrifugal actuators with a different profile than the original equipment manufacturer (OEM) arms. However, many of these alter desired performance characteristics of the OEM flyweight setup and have no adjustability. While replacement arms designed to adjust the centre of gravity and increase the weight in the tail portion of the arm are available, the OEM arm must again be replaced and the desired performance may still not be achieved.
A need therefore exists for improved components of a centrifugal actuator that provide enhanced performance, response and calibration, for example when shifting gears or to achieve particular functionalities (e.g. a high rpm tune).
The present disclosure relates to an adjustable lever for a centrifugal actuator of a continuously variable transmission (CVT) drive pulley. The present disclosure recognizes that there are problems and/or limitations with current centrifugal actuators in respect of operational performance, for example, in snowmobiles.
At least one advantage of the present disclosure is the provision of adjustable levers, and in particular Lh levers in centrifugal actuators of pDrive clutches, having improved characteristics over existing technologies.
In an embodiment, the present disclosure relates to an adjustable lever for a centrifugal actuator of a continuously variable transmission drive pulley, the adjustable lever comprising: a first aperture operatively engageable with a head portion of an arm of the centrifugal actuator; a second aperture operatively engageable with a pivot point of the arm; a third aperture for receiving a first removable weight therewithin, the third aperture located in a first extension of the adjustable lever and positioned beyond the outer curvature of the head portion of the arm when the adjustable lever is operatively engaged with the arm; and a fourth aperture for receiving a second removable weight therewithin, the fourth aperture located in a second extension of the adjustable lever and positioned adjacent the space underneath a tail portion of the arm when the adjustable lever is operatively engaged with the arm.
In an embodiment, the present disclosure relates to an adjustable lever for a centrifugal actuator of a continuously variable transmission drive pulley, the adjustable lever comprising: a first aperture operatively engageable with a head portion of an arm of the centrifugal actuator; a second aperture operatively engageable with a pivot point of the arm; a first receiver for receiving a first removable weight therewithin, the first receiver located on a first extension of the adjustable lever and positioned beyond the outer curvature of the head portion of the arm when the adjustable lever is operatively engaged with the arm; and a second receiver for receiving a second removable weight therewithin, the second receiver located on a second extension of the adjustable lever and positioned adjacent the space underneath a tail portion of the arm when the adjustable lever is operatively engaged with the arm.
In an embodiment, the present disclosure relates to a kit comprising: an adjustable lever for a centrifugal actuator of a continuously variable transmission drive pulley, the adjustable lever comprising: a first aperture operatively engageable with a head portion of an arm of the centrifugal actuator; a second aperture operatively engageable with a pivot point of the arm; a third aperture for receiving a first removable weight therewithin, the third aperture located in a first extension of the adjustable lever and positioned beyond the outer curvature of the head portion of the arm when the adjustable lever is operatively engaged with the arm; and a fourth aperture for receiving a second removable weight therewithin, the fourth aperture located in a second extension of the adjustable lever and positioned adjacent the space underneath a tail portion of the arm when the adjustable lever is operatively engaged with the arm; and at least one of the first removable weight, the second removable weight, or both.
In an embodiment, the present disclosure relates to a kit comprising: an adjustable lever for a centrifugal actuator of a continuously variable transmission drive pulley, the adjustable lever comprising: a first aperture operatively engageable with a head portion of an arm of the centrifugal actuator; a second aperture operatively engageable with a pivot point of the arm; a first receiver for receiving a first removable weight therewithin, the first receiver located on a first extension of the adjustable lever and positioned beyond the outer curvature of the head portion of the arm when the adjustable lever is operatively engaged with the arm; and a second receiver for receiving a second removable weight therewithin, the second receiver located on a second extension of the adjustable lever and positioned adjacent the space underneath a tail portion of the arm when the adjustable lever is operatively engaged with the arm; and at least one of the first removable weight, the second removable weight, or both.
Other aspects and embodiments of the present disclosure will be evident in view of the detailed description provided herein.
Further advantages, permutations and combinations of the invention will now appear from the above and from the following detailed description of the various particular embodiments of the invention taken together with the accompanying drawings. The appended drawings illustrate one or more embodiments of the present disclosure by way of example only and are not to be construed as limiting the scope of the present disclosure.
Many types of vehicles, including recreational vehicles, may use continuous variable transmission (CVT) drive pulleys having centrifugal actuators. An exemplary centrifugal actuator of a CVT drive pulley is disclosed in U.S. Pat. No. 9,267,580 and shown in
In
The centrifugal actuator 200 also includes a lever 245 having two apertures 246 and 248. The lever 245 is operatively engageable to the arm 222 by for example inserting a fastener 230 through both the aperture 248 of the lever 245 and the aperture 226 of the arm 222 and securing through an aperture 264 of a lock 260.
The present disclosure relates to an adjustable lever for a centrifugal actuator of a CVT drive pulley, and more particularly a centrifugal actuator of a pDrive clutch, such as for example the centrifugal actuator 200 shown in
The adjustable levers of the present disclosure, and kits comprising the levers, are advantageous in a number of aspects. One advantage of the present disclosure is the provision of levers that permit weight adjustability at the arm of the centrifugal actuator without having to replace the original equipment manufacture (OEM) arm. Another advantage of the present disclosure is the multi-point adjustability of the adjustable levers disclosed herein. Taking into account that the weight of standard fastener 230 may also be adjusted, the adjustable levers disclosed herein have at least three separate points of weight adjustability at defined positions. The shape or profile of the adjustable lever may also be changed to provide further weight and calibration refinement. As another advantage, the multi-point weight adjustability of the levers disclosed herein provides refined tunabilty to a CVT drivetrain, including improved response and performance when shifting gears or improved functionality under different applications (e.g. a high rpm tune).
Reference will now be made in detail to exemplary embodiments of the present disclosure, wherein numerals refer to like components, examples of which are illustrated in the accompanying drawings that further show exemplary embodiments of the present disclosure, without limitation.
In an aspect, the present disclosure relates to an adjustable lever for a centrifugal actuator of a CVT drive pulley. In an embodiment, the adjustable lever comprises a first aperture operatively engageable with a head portion of an arm of the centrifugal actuator; a second aperture operatively engageable with a pivot point of the arm; a third aperture for receiving a first removable weight therewithin, the third aperture located in a first extension of the adjustable lever and positioned beyond the outer curvature of the head portion of the arm when the adjustable lever is operatively engaged with the arm; and a fourth aperture for receiving a second removable weight therewithin, the fourth aperture located in a second extension of the adjustable lever and positioned adjacent the space underneath a tail portion of the arm when the adjustable lever is operatively engaged with the arm.
Shown in
In an embodiment, one or both of the third aperture 16 and the fourth aperture 18 are threaded. In a particular embodiment, both the third aperture 16 and the fourth aperture 18 are threaded for receiving threaded removable weights (e.g. bolts). The third aperture 16 and the fourth aperture 18 may be of the same size, or not. In a particular embodiment, both the third aperture 16 and the fourth aperture 18 are of the same diameter. In some embodiments, one or both of the third aperture 16 and the fourth aperture 18 have a diameter that is smaller than that of both the first aperture 12 and the second aperture 14. While with reference to the drawings herein, the present disclosure largely discusses the third aperture 16 and the fourth aperture 18 in the context of being a circular shape, it will be appreciated that other shapes may be suitable (e.g. square, rectangle, oblong, etc.).
In some embodiments, the adjustable lever 10 may comprise one or more additional apertures for receiving removable weights. In some embodiments, the adjustable lever 10 may comprise a fifth aperture 20 (see, for example,
As shown in
The tail portion 4 of the arm 1 comprises a curved arm portion 6 that defines a cam surface 7 (see
Still with reference now to
The fourth aperture 18 is for receiving a second removable weight 18A and is located in a second extension 19 of the adjustable lever 10. When the adjustable lever 10 is operatively engaged with the arm 1, the second removable weight 18A is positioned adjacent the space underneath the tail portion 4 of the arm 1. As used herein, the expression “space underneath the tail portion” is intended to refer to the space between the pivot point 5A and the end of the tail portion 4 distal the pivot point 5A and bordered by the underside of the curved arm portion 6. In some embodiments, at least a portion of the second removable weight 18A extends into the space underneath the tail portion 4 when the second removable weight 18A is received in the fourth aperture 18 and when the adjustable lever 10 is operatively engaged with the arm 1.
As above, the adjustable lever 10 may comprise one or more additional apertures. In an embodiment, the adjustable lever 10 comprises a fifth aperture 20 for receiving a third removable weight (not shown). In some embodiments, the fifth aperture 20 is located between the second aperture 14 and the fourth aperture 18 and positioned adjacent the space underneath the tail portion 4 of the arm 1 when the adjustable lever 10 is operatively engaged with the arm 1. In some embodiments, at least a portion of the third removable weight extends under the tail portion 4 of the arm 1 when the third removable weight is received in the fifth aperture 20 and when the adjustable lever 10 is operatively engaged with the arm 1.
The first removable weight 16A and the second removable weight 18A may advantageously provide two points of weight adjustability to the adjustable lever 10. While the embodiments illustrated in the present disclosure show the first removable weight 16A and the second removable weight 18A as being bolts, it will be appreciated that other removable weights may be used. In some embodiments, the first removable weight 16A and the second removable weight 18A may be bolts, screws, nuts, washers, binding posts, barrel nuts, magnets, or any combination thereof. Non-limiting examples of bolts include carriage bolts, barrel bolts, arbor bolts, shoulder bolts, square bolts, round bolts, hex bolts, sex bolts, and flanged bolts. Non-limiting examples of screws include machine screws, socket screws, and mating screws.
In some embodiments, each of the first removable weight 16A and the second the second removable weight 18A include a bolt or a screw. The bolts and screws may be threaded, or not. In some embodiments, each of the first removable weight 16A and the second the second removable weight 18A includes a bolt or screw and a nut. In some embodiments, each of the first removable weight 16A and the second the second removable weight 18A include a bolt or screw and a washer. The washers may be used to make fine adjustments to the mass of the first removable weight 16A and/or the second removable weight 18A. Any number of nuts and/or washers may be used together with a bolt or screw as the first removable weight 16A or the second the second removable weight 18A.
In some embodiments, the first removable weight 16A and the second removable weight 18A are of the same type (e.g. both are bolts). In some embodiments, the first removable weight 16A and the second removable weight 18A are of a different type (e.g. one is a screw and one is a bolt and nut). The configuration can be adjusted, having regard to the present disclosure, to provide proper adjustability for performance, response and calibration.
The first removable weight 16A and the second removable weight 18A may be of any suitable material and may be of the same material, or not. In some embodiments, the first removable weight 16A and the second removable weight 18A are comprised of a metal, a metallic alloy, a metalloid, or any combination thereof. In some embodiments, the first removable weight 16A and the second removable weight 18A are individually selected from steel, stainless steel, carbon steel, alloy steel, iron, aluminum, magnesium, copper, brass, nickel, tin, cobalt, lead, bronze, platinum, tungsten, or titanium. In the case of metalloids, exemplary embodiments include silicon bronze (e.g. silicon bronze bolts). In some embodiments, the first removable weight 16A and the second removable weight 18A may be comprised of a non-metallic material, such as a polymeric material, such as a polyurethane. In a particular embodiment, the first removable weight 16A and the second removable weight 18A are made of stainless steel.
In some embodiments, the first removable weight 16A and the second removable weight 18A each have an individual mass of between about 0.05 g and about 50 g, more particularly between about 0.1 g and about 20 g. In an embodiment, the first removable weight 16A and the second removable weight 18A each have an individual mass of about 0.1 g, about 0.5 g, about 0.75 g, about 1 g, about 1.5 g, about 2 g, about 2.5 g, about 3 g, about 3.5 g, about 4 g, about 4.5 g, about 5 g, about 5.5 g, about 6 g, about 6.5 g, about 7 g, about 7.5 g, about 8 g, about 8.5 g, about 9 g, about 9.5 g, about 10 g, about 10.5 g, about 11 g, about 11.5 g, about 12 g, about 12.5 g, about 13 g, about 13.5 g, about 14 g, about 14.5 g, about 15 g, about 15.5 g, about 16 g, about 16.5 g, about 17 g, about 17.5 g, about 18 g, about 18.5 g, about 19 g, about 19.5 g, or about 20 g.
As above, the adjustable lever 10 may comprise one or more additional apertures for receiving removable weights. The removable weights for the one or more additional apertures may any of the weights, materials, and sizes as described elsewhere herein for the first and/or second removable weight 16A/18A. In a particular embodiment, the adjustable lever 10 comprises a fifth aperture 20 for receiving a third removable weight. In an embodiment, the third removable weight comprises bolts.
In some embodiments of the present disclosure, the adjustable lever 10 has a weight of between about 5 g and about 100 g without the first removable weight 16A or the second removable weight 18A, more particularly between about 7 g and about 50 g. In an embodiment, the adjustable lever 10 has a mass of about 5 g, about 6 g, about 7 g, about 8 g, about 9 g, about 10 g, about 15 g, about 20 g, about 25 g, about 30 g, about 35 g, about 40 g, about 45 g, or about 50 g without the first removable weight 16A or the second removable weight 18A. In a particular embodiment, the adjustable lever 10 has a mass of about 50 g without the first removable weight 16A or the second removable weight 18A. In another particular embodiment, the adjustable lever has a mass of about 7 g without the first removable weight 16A or the second removable weight 18A.
In some embodiments, when the first removable weight 16A is received in the third aperture 16 and the second removable weight 18A is received in the fourth aperture 18, the adjustable lever 10 has an adjustable mass of between about 6 g and about 120 g, more particularly between about 8 g and about 80 g. In an embodiment, the adjustable mass of the adjustable lever 10 is about 8 g, about 9 g, about 10 g, about 15 g, about 20 g, about 25 g, about 30 g, about 35 g, about 40 g, about 45 g, about 50 g, about 55 g, about 60 g, about 65 g, about 70 g, about 75 g, or about 80 g. Without being bound by any particular theory, the ability to adjust the mass of lever 10 may provide for improved performance, response or calibration, for example when shifting gears of the CVT. By “adjustable mass”, it is meant that the mass of the adjustable lever 10 may be altered by replacement of the first removable weight 16A and/or second removable weight 18A with weights having a different mass, to thereby adjust the mass of the adjustable lever 10.
The adjustable lever 10 may be comprised of any suitable material to achieve a target mass. In some embodiments, the adjustable lever 10 is comprised of a metal, a metal alloy, a metalloid, or any combination thereof. Without limitation, the material may be any of those described herein in respect of the adjustable weights. In some embodiments, the adjustable lever 10 is comprised of steel, stainless steel, aluminum, or titanium. In a particular embodiment, the adjustable lever 10 is comprised of stainless steel. In another particular embodiment, the adjustable lever 10 is comprised of aluminum. In yet another particular embodiment, the adjustable lever 10 is comprised of titanium. In other embodiments, the adjustable lever 10 may be comprised of a non-metallic material, such as a polymeric material, such as a polyurethane.
The adjustable lever 10 may be of any suitable shape for operatively coupling to the arm 1 and for accommodating the first extension 17 and the second extension 19 without interfering with the operation of the arm 1 or any other components of the centrifugal actuator and the CVT. It will be appreciated that the shape of the adjustable lever 10 may vary between applications, for example between use in a snowmobile and use in a side-by-side vehicle.
Shown in
Likewise, as can be seen in
The skilled person will recognize, based on the present disclosure, that alternate means may be used to secure the first removable weight 16A and/or the second removable weight 18A to the adjustable lever 10 of the present disclosure.
Thus, in some embodiments, the present disclosure relates to an adjustable lever for a centrifugal actuator of a continuously variable transmission drive pulley, the adjustable lever comprising: a first aperture operatively engageable with a head portion of an arm of the centrifugal actuator; a second aperture operatively engageable with a pivot point of the arm; a first receiver for receiving a first removable weight therewithin, the first receiver located on a first extension of the adjustable lever and positioned beyond the outer curvature of the head portion of the arm when the adjustable lever is operatively engaged with the arm; and a second receiver for receiving a second removable weight therewithin, the second receiver located on a second extension of the adjustable lever and positioned adjacent the space underneath a tail portion of the arm when the adjustable lever is operatively engaged with the arm.
As used herein, the terms “first receiver” and “second receiver” are intended to refer to any structure that is capable of receiving and/or securing the first removable weight and the second removable weight, respectively. The first receiver and the second receiver may be of the same size and/or type, or not. Non-limiting examples of a receiver may include a pocket, a sleeve, a recess, a depression, a hollow, a cavity, an aperture, or a socket. Indeed, the foregoing embodiments relating to the adjustable lever 10 having third and fourth apertures (16 and 18) are non-limiting examples adjustable levers of the present disclosure having first and second receivers.
In some embodiments, the first receiver 32 and the second receiver 34 may comprise cylindrical structures for receiving one or more removable weights. In some embodiments, the first receiver 32 and the second receiver 34 may be operatively coupled to the adjustable lever 10 by a suitable means, such as for example, by screws. In a particular embodiment, the first receiver 32 and the second receiver 34 are cylinders of different sizes that are removeably coupleable to the adjustable lever 10, thereby adding further weight adjustability to the adjustable lever 10. In some embodiments, the first receiver 32 and the second receiver 34 may be fused to the adjustable lever 10. In some embodiments, the adjustable lever 10 and the first receiver 32 and the second receiver 34 are formed from a single piece of material and are a monolithic structure. In a particular embodiment, the first removable weight and the second removable weight are magnets.
In some embodiments, the adjustable lever 10 may comprise one or more additional receivers, such as a third receiver. The third receiver may be located at a suitable operational location and may be any of the receivers described for the first and/or second receivers 32/34 elsewhere herein.
It will be appreciated that any removable weight discussed earlier herein may be used depending on the structure of the first receiver and the second receiver. It will also be appreciated that additional and different removable weights may be used depending on the configuration of the first and second receivers. For example, the first and/or second removable weight may be a shaped piece of metal or other material held in position by the first and second receivers, but which removable weight does not pass through the adjustable lever. Rather, in an embodiment, the removable weight may be positioned on one side of the adjustable lever, held in place by the first or second receiver, respectively.
It will further be appreciated that any configuration, shape and/or profile of the adjustable lever 10 described herein is equally applicable to an adjustable lever having first and second receivers.
In another aspect, the present disclosure also provides kits comprising the adjustable levers disclosed herein, and at least one of the first removable weight, at least one of the second removable weight, or both.
In an embodiment, the present disclosure relates to a kit comprising: an adjustable lever for a centrifugal actuator of a continuously variable transmission drive pulley, the adjustable lever comprising: a first aperture operatively engageable with a head portion of an arm of the centrifugal actuator; a second aperture operatively engageable with a pivot point of the arm; a third aperture for receiving a first removable weight therewithin, the third aperture located in a first extension of the adjustable lever and positioned beyond the outer curvature of the head portion of the arm when the adjustable lever is operatively engaged with the arm; and a fourth aperture for receiving a second removable weight therewithin, the fourth aperture located in a second extension of the adjustable lever and positioned adjacent the space underneath a tail portion of the arm when the adjustable lever is operatively engaged with the arm, and at least one of the first removable weight, the second removable weight, or both.
In some embodiments, the kit comprises at least one of the first removable weight 16A and at least one of the second removable weight 18A. In an embodiment, the kit comprises a plurality of the first removable weight 16A and a plurality of the second removable weight 18A. In an embodiment, the first removable weights 16A in the kit are different than the second removable weights 18A, such that the weights are not interchangeable. In other embodiments, the removable weights included within the kit are interchangeable as between use as the first removable weight 16A or the second removable weight 18A. Thus, in some embodiments, the kits disclosed herein provide a plurality of removable weights having different masses that may be used as one or both of the first removable weight 16A and the second removable weight 18A.
As described, the kits may comprise a plurality of removable weights. In an embodiment, the kits comprise removable weights of different masses which may be used as either the first removable weight 16A and/or the second removable weight 18A. So that weights of the same mass may be used both as the first removable weight 16A and the second removable weight 18A, in an embodiment the kits comprise at least two weights of each given mass for each adjustable lever in the kit (e.g. a kit having three levers would comprise six removable weights of the same mass).
In other embodiments, the kits comprise a plurality of distinct first removable weights 16A and a plurality of distinct second removable weights 18A, whereby the first and second removable weights are not interchangeable. In an embodiment, each of the plurality of the first removable weights 16A is of a different weight and each of the plurality of the second removable weights 18A is of a different weight.
The removable weights within the kits may be any of the removable weights described elsewhere herein. In some embodiments, the first removable weight 16A and the second removable weight 18A comprise bolts or screws. In some embodiments, the first removable weight 16A and the second removable weight 18A comprise bolts and washers or screws and washers. In some embodiments, the first removable weight 16A and the second removable weight 18A each have an individual mass between about 0.1 g and about 20 g. The mass may be provided by a single component (e.g. bolt, screw, etc.) or a combination of components (e.g. bolt and one or more washers).
In some embodiments, the kits disclosed herein comprise the adjustable lever 10 having the third and fourth apertures (16 and 18). The adjustable lever 10 may be any adjustable lever comprising the third aperture 16 and the fourth aperture 18 described herein. In some embodiments of the kits disclosed herein, one or both of the third aperture 16 and the fourth aperture 18 are threaded. In some embodiments, one or both of the third aperture 16 and the fourth aperture 18 have a diameter that is smaller than both the first aperture 12 and the second aperture 14. In some embodiments, the kits disclosed herein comprise the adjustable lever 10 having a fifth aperture (20). In some embodiments, the fifth aperture 20 is for receiving a third removable weight. In some embodiments, the kits disclosed herein further comprise the third removable weight. The third removable weight may be as described elsewhere herein in respect of removable weights. In a particular embodiment, the third removable weight comprises bolts.
In some embodiments, the kits disclosed herein comprise the adjustable lever disclosed herein having first and second receivers. Thus, in an embodiment, the present disclosure relates to a kit comprising: an adjustable lever for a centrifugal actuator of a continuously variable transmission drive pulley, the adjustable lever comprising: a first aperture operatively engageable with a head portion of an arm of the centrifugal actuator; a second aperture operatively engageable with a pivot point of the arm; a first receiver for receiving a first removable weight therewithin, the first receiver located on a first extension of the adjustable lever and positioned beyond the outer curvature of the head portion of the arm when the adjustable lever is operatively engaged with the arm; and a second receiver for receiving a second removable weight therewithin, the second receiver located on a second extension of the adjustable lever and positioned adjacent the space underneath a tail portion of the arm when the adjustable lever is operatively engaged with the arm, and at least one of the first removable weight, the second removable weight, or both.
Irrespective of the type of adjustable lever, the kits of the present disclosure may comprise any number of the adjustable levers. In an embodiment, the kits disclosed herein comprise 1, 2, 3, 4, 5, 6, 7, 8, 9, or more of the adjustable levers. In a particular embodiment, each kit comprises three adjustable levers. In an embodiment, each of the adjustable levers in the kits is the adjustable lever 10 as disclosed herein. In an embodiment, each of the three adjustable levers in the kits are the same (e.g. three adjustable levers as shown in
In an embodiment, the adjustable lever(s) in the kits of the present disclosure are comprised of stainless steel, aluminum, or titanium. In a particular embodiment, the adjustable lever(s) are is comprised of stainless steel. In another particular embodiment, the adjustable lever(s) are comprised of aluminum. In yet another particular embodiment, the adjustable lever(s) are comprised of titanium.
An exemplary embodiment of a kit of the present disclosure is illustrated in
In some embodiments, the kits of the present disclosure may comprise at least one pivot weight 30, such as for example shown in
In some embodiments, the kit further comprises instructions. In an embodiment, the instructions may provide guidance on selections for the first removable weight 16A, the second movable weight 18A, the pivot weight, or combinations thereof to assist the operator in achieving a target performance level of the CVT drive pulley. The instructions may, for example, provide guidance on the mass and/or the removable weight components (e.g. bolts, washers, etc.) to be used for each of the first removable weight 16A and the second movable weight 18A to obtain a desired performance, response, or calibration for a particular application or functionality (e.g. a high elevation ride, a high rpm tune, etc.).
Unless otherwise defined, all technical and scientific terms used herein generally have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains.
Many obvious variations of the embodiments set out herein will suggest themselves to those skilled in the art in light of the present disclosure. Such obvious variations are within the scope of the appended claims.
As used herein, the term “about”, when referring to a measurable value such as a weight, a dimension, and the like, is meant to encompass variations of ±10%, ±5%, ±1%, ±0.5% or ±0.1% of the specified amount. When the value is a whole number, the term about is meant to encompass decimal values, as well the degree of variation just described. It is to be understood that such a variation is always included in any given value provided herein, whether or not it is specifically referred to.
“And/or” refers to and encompasses any and all possible combinations of one or more of the associated listed items (e.g. one or the other, or both), as well as the lack of combinations when interrupted in the alternative (or).
“Comprise” as is used in this description and in the claims, and its conjugations, is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded.
| Number | Date | Country | Kind |
|---|---|---|---|
| 3,134,283 | Oct 2021 | CA | national |
