RIDE VEHICLE FOR A RECREATIONAL SLIDE
20250339784 ยท 2025-11-06
Inventors
Cpc classification
C10M107/44
CHEMISTRY; METALLURGY
International classification
C10M107/32
CHEMISTRY; METALLURGY
Abstract
A ride vehicle that is configured to support a rider down a non-wet lubricated recreational slide is provided. The ride vehicle includes an elongate body with a flexible central core positioned between a top surface of the ride vehicle and at least one layer that includes one or more projections. The top surface may include at least on handle for gripping by a rider. The at least one layer forms a bottom surface of the ride vehicle that is configured to contact the non-wet lubricated recreational slide. A coefficient of friction between the at least one layer of the ride vehicle and the non-wet lubricated slide surface is within a range of between about 0.03 to about 0.2.
Claims
1. A ride vehicle configured to support a rider down a non-wet lubricated recreational slide, the ride vehicle comprising: an elongate body that extends between a first end and an opposite second end, the body including a flexible central core positioned between a top surface of the ride vehicle and at least one layer that forms a bottom surface of the ride vehicle, wherein the at least one layer includes one or more projections that are configured to contact the non-wet lubricated recreational slide; and at least one handle attached to the top surface of the ride vehicle.
2. The ride vehicle of claim 1, wherein the at least one layer comprises a unitary sheet of material.
3. The ride vehicle of claim 2, wherein the unitary sheet of material is a polymeric film.
4. The ride vehicle of claim 1, wherein the at least one layer comprises one or more of the following: polyethylene terephthalate; polyethylene; ultra-high molecular weight polyethylene; high-density polyethylene; and Nylon.
5. The ride vehicle of claim 1, wherein the at least one layer comprises a composite layer including a substrate layer and a layer including the one or more projections.
6. The ride vehicle of claim 5, wherein the layer including the one or more projections is a polymeric film.
7. The ride vehicle of claim 1, wherein the one or more projections define a projection area of the at least one layer, wherein the projection area is within a range of between about 30% to about 80% of a total surface area of an outer surface of the at least one layer.
8. The ride vehicle of claim 1, wherein the at least one layer includes a generally planar outer surface from which the one or more projections project.
9. The ride vehicle of claim 1, wherein the one or more projections comprise a plurality of projections evenly distributed in an array across the at least one layer.
10. The ride vehicle of claim 9, wherein the plurality of projections are spaced apart from one another in a longitudinal direction and/or a lateral direction to define the array.
11. The ride vehicle of claim 1, wherein the one or more projections comprise a plurality of rounded protrusions.
12. The ride vehicle of claim 1, wherein the one or more projections comprise a plurality of pointed protrusions.
13. The ride vehicle of claim 1, wherein the one or more projections comprise a plurality of ridges.
14. The ride vehicle of claim 13, wherein each of the plurality of ridges extend in a straight path in a longitudinal direction between the first end and the second end of the elongate body of the ride vehicle.
15. The ride vehicle of claim 13, wherein each of the plurality of ridges extends in a sinuous path in a longitudinal direction between the first end and the second end of the elongate body of the ride vehicle.
16. The ride vehicle of claim 13, wherein the plurality of ridges are arranged in parallel.
17. The ride vehicle of claim 1, wherein the one or more projections comprise a plurality of raised elements that are organic in shape.
18. The ride vehicle of claim 1, further comprising a carrying handle attached to the top surface of the ride vehicle, the carrying handle being located in a central region between the first end and the second end of the elongate body of the ride vehicle.
19. The ride vehicle of claim 18, wherein when lifted by the carrying handle, the ride vehicle is configured to fold along a fold edge for carrying.
20. The ride vehicle of claim 19, wherein the fold edge is formed in the central region. 21 The ride vehicle of claim 19, wherein the carrying handle is located adjacent the fold edge.
22. The ride vehicle of claim 1, further comprising a fabric layer that defines the top surface of the ride vehicle.
23. The ride vehicle of claim 22, wherein the fabric layer comprises neoprene.
24. The ride vehicle of claim 22, wherein the at least one layer and the fabric layer are coupled together to enclose the flexible central core within a cavity formed between the at least one layer and the fabric layer.
25. The ride vehicle of claim 22, wherein the at least one layer and the fabric layer are stitched together about a periphery of the elongate body of the ride vehicle.
26. The ride vehicle of claim 22, wherein the flexible central core is surrounded by a fabric liner that is positioned between the flexible central core and the fabric layer and the at least one layer.
27. A recreational slide system, comprising: the ride vehicle of claim 1; and a slide including a slide body with a non-wet lubricated slide surface that extends between a top entrance of the slide and a bottom exit of the slide; wherein a coefficient of friction between the at least one layer of the ride vehicle and the non-wet lubricated slide surface is within a range of between about 0.03 to about 0.2.
28. The recreational slide system of claim 27, wherein the coefficient of friction is kinetic coefficient of friction.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate one or more embodiments of the invention and, together with the general description given above and the detailed description given below, serve to describe the one or more embodiments of the invention.
[0017]
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[0020]
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[0025]
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[0027]
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[0030]
DETAILED DESCRIPTION
[0031] Embodiments of the present invention are directed to a ride vehicle for use with a dry recreational slide, otherwise referred to as a non-wet lubricated slide. Together, the ride vehicle and the slide form a slide system. The ride vehicle is configured to support a rider traveling or descending down the slide and includes a bottom surface, formed by at least one layer of material, that is configured to be positioned between the rider and the slide surface for sliding down the slide. In one embodiment, the at least one layer, otherwise referred to as an underside layer, may be formed of a unitary sheet and/or film of material that includes one or more regular or irregular-shaped projections. These projections are configured to extend outwardly from the underside of the ride vehicle in a direction toward the slide surface to provide the bottom surface of the ride vehicle with a textured or embossed configuration for improved sliding performance.
[0032] The projections are configured to interact with the slide surface, resulting in a reduced coefficient of friction between the bottom surface of the ride vehicle and surfaces of the slide compared to a ride vehicle without projections on its underside, for example. That is, the projections reduce the effective surface contact area between the ride vehicle and the slide surface, and further channel airflow between the slide surface and the ride vehicle, both of which contribute to the reduced coefficient of friction therebetween. As a result, the rider is provided with an improved (i.e., fast) rate of descent down the slide. As the rider descends down the slide on the ride vehicle, the bottom surface of the ride vehicle, and in particular the projections, is in contact with the slide surface such that a coefficient of friction at interfaces between surfaces of the bottom surface of the ride vehicle and the slide surface is within a range of between about 0.03 to about 0.2, depending on factors such as a weight of the rider, for example. As used herein relative to the coefficient of friction, about is intended to mean +/10%. These and other aspects of the present invention will be described in further detail below.
[0033] As will be understood by a person skilled in the art, the coefficient of friction between the bottom surface of the ride vehicle and the slide surface is the ratio of the frictional force between two surfaces to the normal force pressing the surfaces together. That is, Coefficient of Friction ()=Force of Friction (F)/Normal Force (N). The coefficient of friction between the bottom surface of the ride vehicle and the slide surface may be described in terms of both the static and kinetic coefficients of friction.
[0034] The coefficient of friction between surfaces of the at least one underside layer that forms the bottom surface of the ride vehicle and the slide surface is determined using the American Society for Testing and Materials International (ASTM) Coefficient of Friction ASTM D1894 standard test method (July 2023), which may be used to determine both kinetic (moving) and static (starting) coefficient of friction of one surface being dragged across another. The ASTM D1894 test method can be found at www.astm.org. For the ASTM D1894 test, the material specimen is attached to a sled of defined weight. This sled is pulled across another surface at a speed of 136 mm/minute. The force required to start the sled is measured to get the static friction. The force required to maintain the motion of the sled is measured to get the kinetic friction.
[0035] Referring now to the figures,
[0036] By non-wet lubricated, it is meant that the slide body 16, and more particularly the slide surface 18, is free of any fluid or wet lubricant flowing down the slide surface 18 and between the ride vehicle 14 and the slide surface 18. To this end, the recreational slide 12 is not a water slide. However, the slide surface 18 may be periodically conditioned with oil, such as silicone oil, for example, as part of on-going maintenance of the recreational slide 12. While aspects of the present invention are shown and described in the context of a certain type or configuration of slide, it will be understood that the same inventive concepts, and particularly those related to aspects of the ride vehicle 14, may be implemented with different non-wet lubricated slide designs. To this end, the drawings are not intended to be limiting.
[0037] With continued reference to
[0038] In use, a rider enters the slide 12 via the top entrance 20, travels down the slide body 16 along the slide surface 18, and subsequently exits the slide 12 at the bottom exit 22. In particular, the rider rides down the slide 12 on the ride vehicle 14 which is configured to be positioned between the slide surface 18 and the rider. The rider may ride down slide 12 on the ride vehicle 14 on their stomach with their head traveling down the slide 12 first, for example. As will be described in further detail below, the ride vehicle 14 includes at least one underside layer including one or more projections that cooperates with the slide surface 18 to achieve an improved, i.e., reduced, coefficient of friction therebetween compared to a ride vehicle 14 without projections on its underside, for example. As a result of the increased rate of descent down the slide 12, the rider may be launched from the bottom exit 22 of the slide 12 and into the air for aerial play before landing in a designated landing area (i.e., foam pad, inflatable airbag, etc.).
[0039] Referring now to
[0040] The shape of the body 34 of the ride vehicle 14 is generally defined by a flexible central core 48 that is sandwiched between a top layer 50, which may be formed of fabric, and the at least one underside layer 46. In the exemplary embodiment shown, the central core 48 is generally rectangular in shape. However, the central core 48 and thus the ride vehicle 14 may be formed in other shapes, such as polygonal shapes or circular shapes, for example. The central core 48 may be formed of a flexible material, such as a composite closed cell or open cell foam pad, for example, to provide the ride vehicle 14 with a semi-rigid or flexible configuration, as may be desired. To that end, the flexible central core 48 provides a soft support between the rider and the slide 12 for comfort, but is also flexible to permit the ride vehicle 14 to be folded upon itself for transport, as well as conform to the underlying contours of the slide surface 18, as will be described in further detail below.
[0041] The top layer 50 forms the top surface 40 of the ride vehicle 14 and may be formed of a fabric or synthetic material, such as Neoprene, for example, or any other suitable wear-resistant material. As shown in
[0042]
[0043] The sheet of material 58 may be coupled to the top layer 50 of the ride vehicle 14 at the seam 52 (e.g.,
[0044] In the embodiment shown, the sheet of material 58 is a thin, flexible or semi-rigid unitary sheet formed of plastic or polymer, such as polyethylene terephthalate (PET), polyethylene (PE), ultra-high molecular weight polyethylene (UHMWPE), high-density polyethylene (HDPE), Polyamide (PA or Nylon), Polypropylene (PP), Polystyrene (PS), Polyvinyl chloride (PVC), Polyethylene glycol (PEG), Polycarbonate (PC), Acrylonitrile butadiene styrene (ABS), Polyurethane (PU), Polyvinylidene fluoride (PVDF), Polymethyl methacrylate (PMMA), Polytetrafluoroethylene (PTFE), or other similar engineered plastics and polymers, or combinations thereof, for example. The sheet of material 58 may be formed by extrusion, calendaring, molding, or casting processes, for example.
[0045] With reference to
[0046] As shown in
[0047] The surface area of the outer surface 61 of the sheet of material 58 may be defined by a projection area and a planar area. In that regard, the one or more projections 60 may collectively define the projection area of the sheet of material 58. The remainder of the outer surface 61 of the sheet of material 58, which lacks projections 60, is generally flat and may define the planar area of the sheet of material 58. In the embodiment shown, the projection area may be within a range of between about 10% to about 90% of the total surface area of the outer surface 61 of the sheet of material 58. For example, the projection area may be within a range of between about 10% to about 70% of the total surface area of the outer surface 61 of the sheet of material 58, or the projection area may be within a range of between about 10% to about 50% of the total surface area of the outer surface 61 of the sheet of material 58. As another example, the projection area may be within a range of about 35% of the total surface area of the outer surface 61 of the sheet of material 58. As another example, the projection area may be within a range of about 50% of the total surface area of the outer surface 61 of the sheet of material 58.
[0048] With reference to
[0049] The sheet of material 58 forms the underside layer 46 of the ride vehicle 14 and is a solid, continuous layer without any perforations, holes, or other openings. The sheet of material 58 has a defined thickness T that provides both durability and flexibility, allowing the sheet of material 58 to conform to the shape and bending characteristics of the underlying flexible core 48 and, in turn, maintain the overall flexibility of the ride vehicle 14. As a result, the ride vehicle 14 is able to conform to the contour of the slide surface 18 during use, causing the sheet of material 58 and thus the bottom surface 42 of the ride vehicle 14 to directly face and travel over the slide surface 18 during use. For example, the ride vehicle 14 is able to flex along the base wall 24 and the pair of opposite sidewalls 26a, 26b while maintaining continuous contact with the slide surface 18, thereby ensuring that the projections 60 remain fully engaged with the slide surface 18 to enhance sliding performance. This configuration ensures that the maximum number of projections 60, and in some cases, all projections 60, are placed in active engagement with the slide surface 18. Flexibility of the ride vehicle 14 in this regard ensures that the projections 60 maintain consistent contact with the slide surface 18 to thereby reduce resistance during sliding movement, resulting in an overall improved sliding performance characterized by lower friction and greater sliding speed down the slide 12. The projections 60 do not inhibit either lateral or forward movement of the ride vehicle 14 along the slide surface 18, allowing the ride vehicle 14 to move smoothly along the slide surface 18, including ascending up the sidewalls 26a, 26b, and descending along the base wall 24, in response to rider motion and slide geometry.
[0050] In comparative testing, ride vehicles 14 with projections 60 demonstrated a lower kinetic coefficient of friction than otherwise identical ride vehicles 14 with a solid flat or untextured bottom surface 42, using identical slide 12 materials and rider weights. For example, friction tests modeled in accordance with ASTM D1894 using Polyethylene Terephthalate (PET) as the sheet of material 58 with projections 60 and Ultra-High-Molecular-Weight Polyethylene (UHMWPE) as the slide surface 18 yielded kinetic coefficients of friction in the range of about 0.10 to about 0.14. In contrast, when UHMWPE was used as the sheet of material 58 with projections 60, the measured coefficients were lower, ranging from about 0.03 to about 0.10. Tests performed using fiberglass slide surfaces 18 resulted in slightly higher coefficients of friction, in some cases reaching up to about 0.2. Based on these results, the coefficient of friction between the bottom surface 42 of the ride vehicle 14 and the slide surface 18 according to embodiments of the present invention may generally fall within a range of about 0.03 to about 0.2, more preferably within a range of about 0.03 to about 0.15, and most preferably within a range of about 0.03 to about 0.12. These coefficient of friction values demonstrate an enhanced sliding performance, enabling the rider to achieve a high rate of descent along the slide 12.
[0051] Referring now to
[0052] The film 62 may be applied to cover the entire generally planar outer surface 61 of the sheet of material 58, for example. Alternatively, the film 62 may be applied to only portions of the outer surface 61 of the sheet of material 58. In either case, the film 62 may be applied to the sheet of material 58 using an adhesive, for example. In the embodiment shown, the substrate layer (i.e., the sheet of material 58 without projections 60) including the film 62 may be coupled to the top layer 50 at the seam 52. Additionally or alternatively, the sheet of material 58 may be coupled, for example, with adhesive, to the central core 48 or liner 56 of the ride vehicle 14, if used. In either case, the film 62 defines the bottom surface 42 of the ride vehicle 14 that is configured to be positioned between the rider and the slide surface 18 for sliding down the slide 12.
[0053] The film 62 may be a plastic or polymeric film, formed of various types of polymers or plastics, such as Polyethylene (PE), Polypropylene (PP), Polyvinyl chloride (PVC), Polyester (PET), Polyethylene terephthalate glycol (PETG), Polystyrene (PS), Polyamide (PA or Nylon), Polycarbonate (PC), Polyvinylidene chloride (PVDC), or Ethylene vinyl acetate (EVA), for example. The film 62 includes a thickness (e.g., measured as shown in
[0054] In an alternative embodiment, the at least one underside layer 46 may comprise the film 62 alone, without the substrate layer, such as the sheet of material 58 without the projections 60 described above. In that regard, the film 62 may be coupled to the top layer 50 at the seam 52 to enclose the central core 48 within a cavity formed between the film 62 (underside layer 46) and the top layer 50 of the ride vehicle 14. Additionally or alternatively, the film 62 may be coupled, for example, with adhesive, to the central core 48 or liner 56, if used.
[0055] Turning now with reference to
[0056] With reference to
[0057]
[0058] In another embodiment, shown in
[0059] The shape, size, and placement of the raised elements 66 may be dictated by anticipated use conditions for the ride vehicle 14, such as the profile of the slide surface 18 and/or slide body 16 with which the ride vehicle 14 is intended to be used, or the expected weight of the rider. For example, on a slide 12 with a steeper incline or tighter curves, the raised elements 66 may be more closely spaced. Similarly, the weight of the rider may influence the configuration of the raised elements 66. A heavier rider may compress the ride vehicle 14 more significantly, increasing contact area and friction. In such cases, taller, wider, or more widely spaced raised elements 66 may be used to reduce drag and maintain a desired sliding speed. Conversely, lighter riders may benefit from shorter or more densely packed raised elements 66. Thus, the profile of the raised elements 66 may be configured to optimize performance and rider experience across different ride scenarios. To that end, the organic shape of the raised elements 66 serves to disrupt laminar flow beneath the ride vehicle 14, helping to reduce suction or drag that would otherwise slow the ride vehicle 14 as it travels down the slide 12.
[0060] By organic in shape, it is meant that raised elements 66 exhibit a free-form, curvilinear, or irregular appearance. In other words, surfaces of the raised elements 66 have a natural, flowing, uneven, or undulating appearance, similar to forms observed in nature, such as the surface of a rock or terrain. The raised elements 66 are not angular, symmetrical, or uniformly patterned, but instead emulate the seemingly random, textured, and fluid characteristics of natural elements. The organic shapes of the raised elements 66 result from an iterative design process, which identifies where raised elements 66 may be added, removed, or reshaped along the underside of the ride vehicle 14 to optimize performance across varying use conditions. To that end, the performance of each design iteration is modeled using modeling software, such as SOLIDWORKS Simulations, for example. Based on the results, the shape and placement of the raised elements 66 may be further refined to adjust performance of the ride vehicle 14 as desired.
[0061] Referring now to
[0062] As shown, the carrying handle 70 is attached to the top surface 40 of the ride vehicle 14, and in particular the top layer 50, such as by stitching, for example. In particular, the carrying handle 70 is attached to the top layer 50 generally in a central region between the first end 36 and the second end 38 of the elongate body 34 of the ride vehicle 14. The carrying handle 70 may be generally centered between the longitudinal sides of the elongate body 34 of the ride vehicle 14. As shown, the central region of the ride vehicle 14 includes a transverse axis A1 that bisects or divides the ride vehicle 14, lengthwise, into a first half 72 and a second half 74. The transverse axis A1 is perpendicular to a longitudinal axis (not shown) of the ride vehicle 14. The first half 72 may be referred to as the front half of the ride vehicle 14 and the second half 74 may be referred to as the rear half of the ride vehicle 14. The carrying handle 70 extends generally parallel to the transverse axis A1 and may be located along or generally near the transverse axis A1.
[0063] As shown in
[0064] In another embodiment, as shown in
[0065] While the invention has been illustrated by the description of various embodiments thereof, and while the embodiments have been described in considerable detail, it is not intended to restrict or in any way limit the scope of the appended claims to such detail. Thus, the various features discussed herein may be used alone or in any combination. Additional advantages and modifications will readily appear to those skilled in the art. The invention in its broader aspects is therefore not limited to the specific details and illustrative examples shown and described. Accordingly, departures may be made from such details without departing from the scope of the general inventive concept.