Aspects of the present disclosure relate to autonomous, gravity-assisted motorized toy racers and tube assemblies through which the toy racers run.
Kids love to race cars. Conventionally, cars are raced on tracks, which can be assembled together to form a variety of configurations. The tracks are open, which means that the cars frequently come off the tracks, and there is a practical limit or constraint on how convoluted the track can be formed due to the reliance upon gravity and that the car can succumb to gravity and come off the track, particularly when ascending vertically, undergoing a twisting or rotational motion, or looping around a loop section of the track.
A tube assembly is disclosed that includes curved tubes or tube segments that are connected together, and they can be connected and rotated in virtually an unlimited number of configurations. Variations on the tube segments, as well as support post or structures to support the assembled tube configuration, are also disclosed. The tubes or tube segments can snap together (e.g., via one or more tube-couplers) to prevent horizontal sliding.
An autonomous, gravity-assisted motorized toy racer vehicle is also disclosed having a form factor and geometry that allows the vehicle to be able to navigate autonomously inside the tubes without getting stuck, while maintaining drive contact with the inside of the tubes surface (even if sideways or upside down relative to earth). By “autonomous” it is meant that the racer vehicle does not require any manual human energy to impart forward momentum to the vehicle. The autonomous vehicle disclosed herein can be operated by remote control, or it can be automatically controlled.
The tube segments are assembled together to form a tube assembly to form a desired racing path for the racer vehicle. Thus, there are at least two play components: construction and play. The tube assembly provides the construction component, and racing the motorized racer vehicle through the tubes provides the play component. The racer vehicle includes a battery and a motor powered by the battery. The motor is connected to a wheel that propels the racer vehicle through the tubes, but the racer vehicle also gains speed from gravity when heading in a direction back toward earth. The motorized component allows the racer vehicle to go in a direction opposite earth or transverse to earth.
The tubes can be closed loops or open ended. If the tubes are of the closed loop type, then an entry point can be used so that the vehicle can be inserted or retrieved without disassembling any part of the tube assembly.
The racer vehicle can include lights, such as one or more light emitting diodes, which can be powered (for free as it were, meaning without drawing any power from the battery) by the drivetrain, or by the battery.
Lights and sound will make this product even more innovative, fun, and wild.
Because the tubes can be transparent or semi-transparent (non-opaque) and clear or in color, the illuminated racer vehicle is visible through the tube segments. Because sound travels well and bounces around in and through the pipes, the sound of the vehicle as it races through the tubes and around turns will provide an aural experience in addition to the visual experience due to the transparent tubes. The visual experience is enhanced when the racer vehicle is raced through the tube assembly in a darkened room.
The system disclosed herein is infinitely expandable with additional pipe (tubes), special feature sets, additional autonomous or remote-controlled racer vehicles, remote control valves in the pipes, to name a few examples.
An accelerometer connected to the lights and sounds controller can further enhance visual and aural and other sensory special effects. The system as a whole contributes to a fun, engaging, educational, and exciting (re)-construction and play experience.
The ability to race in the tube and also on the floor constrains the design of the body because the body must not interfere with tangency of adjacent wheels, which is required to run on the floor. The vehicle can be designed to only run in the tube, or to run on the tube and on the floor.
According to some aspects of the present disclosure, a vehicle is configured to move through a network of interconnected tubes. The network of interconnected tubes includes a curved tube having a radius of curvature (R) and an inner diameter (D). The vehicle includes a body, a motor, a motorized wheel, a biasing assembly (e.g., a resilient element, a spring-loaded element, a compressible element/wheel like a hollow tire, etc.), and a first element. The body has a longitudinal axis and a waist that is generally perpendicular to the longitudinal axis and defines a circumferentially extending width of the body at a central portion of the body. The motor is positioned within the body and coupled to a battery that powers the motor. The motorized wheel is mechanically coupled to the motor. The motorized wheel at least partially extends out from the body adjacent to a first end of the body such that the motorized wheel is configured to directly engage an inner surface of the series of tubes. The biasing assembly is positioned to cause the motorized wheel to maintain continuous contact with the inner surface of the series of tubes during operation of the motor. The first element at least partially extends out from the body adjacent to a second opposing end of the body such that the first element is configured to directly engage the inner surface of the series of tubes. A length (L) of a wheelbase of the vehicle is the distance between a center of the motorized wheel and a center of the first element. The waist is constrained by (i) the inner diameter (D) of the curved tube, (ii) the radius of curvature (R) of the curved tube, and (iii) the length (L) of the wheelbase. The waist of the body is sized such that the vehicle can freely move within any of the series of tubes without getting stuck therein.
According to some aspects of the present disclosure, a vehicle is configured to propel through a network of interconnected tubes including at least one curved tube having a radius of curvature (R) and an inner diameter (D). The vehicle includes a body, a motor, a motorized wheel, a biasing member, and a first contacting element. The body has a longitudinal axis and a circumferential waist that is orthogonal to the longitudinal axis and that circumscribes the outermost structures of the vehicle at a central portion thereof. The motor is positioned within the body and coupled to a battery that powers the motor. The motorized wheel is positioned along the body and mechanically coupled to the motor. The motorized wheel at least partially extends out from the body adjacent to a first end of the body such that the motorized wheel is configured to directly engage an inner surface of the network of interconnected tubes. The biasing member is configured to cause the motorized wheel to maintain contact with the inner surface of the network of interconnected tubes during operation of the motor. The first contacting element at least partially extends out from the body adjacent to a second opposing end of the body such that the first contacting element is configured to directly contact the inner surface of the network of interconnected tubes as the vehicle is propelled therethrough by the motor. A length (L) of a wheelbase of the vehicle corresponds to a distance between a center of the motorized wheel and a center of the first contacting element. Dimensions of the length (L) of the wheelbase and of the circumferential waist (d) have the following constraints: a maximum circumference of the waist (d) is constrained by a first ratio between (i) the inner diameter (D) of the at least one curved tube and (ii) a smallest radius of curvature (R) among the at least one curved tube, wherein the ratio is between 0.130 and 0.365. A maximum length (L) of the wheelbase is constrained by the first ratio and the maximum circumference of the waist (d), such that no matter how the vehicle rotates about the longitudinal axis as the vehicle is propelled around any of the at least one curved tube, the maximum circumference of the waist (d) is always observed to prevent any part of the body from contacting any part of the inner surface of the at least one curved tube.
According to some implementations of the present disclosure The waist (d) of the body of the vehicle is constrained by the following formula:
According to some implementations of the present disclosure The waist (d) of the body of the vehicle is constrained by the following formula:
where θ is an angle between a first radius of curvature (R) through the center of the motorized wheel and a second radius of curvature (R) through the center of the first element.
It should be noted that the support posts (vertical) and base supports (horizontal) can removably snap together to form an unlimited variety of “scaffolding” support structures to support any configuration of a tube assembly. The various curved tube sections can be coupled together by respective collars to produce an endless variety of angles and curves that are configurable in accordance with the teachings of the present disclosure.
The embodiments disclosed below in connection with
Helical Gear Drive is more normal in the tube and on the floor.
Belt Drive. It will be very strange on the ground as the spine will not be horizontal in many possible configurations. The belts can also be replaced with a train of idler gears if gears are preferred to belt.
A) A central drive gear directly coupled to the motor 2206, and 3 equally spaced driven gears 2204.
B) The driven gears are over-molded with rubber tires that straddle the central gear.
C) The drive housing is split for assembly. The motor 2206 snaps into the drive housing and connects to the central gear.
D) The associated electronics, connectors, PCB, batteries, etc. can nest in the voids around the motor or on a cage frame around the motor.
E) This arrangement allows any two wheel tangencies to drive on a flat surface, and allows space within to house a modestly sized vehicle body. If a non-flat surface vehicle is created, the body area will increase accordingly.
F) We used actual gear sizes, the smallest of which is shown in
G) This configuration can be used singly or in pairs, with a single or dual shaft motor. It applies to vehicle layouts 1, 3, 5 and 7.
H) Double shaft motor will drive 6 wheels. Single shaft motor drives 3 wheels. And the other 3 wheels free-wheel.
Alternately, a vehicle featuring a belt drive drivetrain is contemplated as Embodiment 2. The belts can also be replaced with a train of idler gears if gears are preferred to belt.
Referring to
The inner diameter, D, of the curved tube 2800 can be any number, such as, for example, about 0.5 inches, or about 0.75 inches, or about 1.0 inch, or about 1.25 inches, or about 1.5 inches, or about 1.75 inches, or about 2.0 inches, or about 2.25 inches, or about 2.5 inches, or about 2.75 inches, or about 3.0 inches, or about 3.25 inches, or about 3.5 inches, or about 3.75 inches, or about 4.0 inches, or about 4.25 inches, or about 4.5 inches, or about 4.75 inches, or about 5.0 inches, etc., or about 10.0 inches, or about 20.0 inches, etc. or any number in between, above, or below such recited examples. In some implementations, the inner diameter, D, of the curved tube 2800 is between about 0.75 inches and about 3.0 inches, or between about 1.0 inches and about 2.5 inches, or between about 1.25 inches and about 2.0 inches, or between about 1.25 inches and about 2.75 inches, etc.
The radius of curvature, R, of the curved tube 2800 can be any number, such as, for example, about 3 inches, or about 3.5 inches, or about 4 inches, or about 4.5 inches, or about 5 inches, or about 5.5 inches, or about 6 inches, or about 6.5 inches, or about 7 inches, or about 7.5 inches, or about 8 inches, or about 8.5 inches, or about 9 inches, or about 9.5 inches, or about 10 inches, or about 10.5 inches, or about 11 inches, or about 11.5 inches, or about 12 inches, etc., or any number in between, above, or below such recited examples. In some implementations, radius of curvature, R, of the curved tube 2800 is between about 4 inches and about 12 inches, or between about 5 inches and about 10 inches, or between about 6 inches and about 9 inches, or between about 8 inches and about 10 inches, etc.
The length of the longitudinal axis, Xt, between the ends 2801a,b of the curved tube 2800 can be any number, such as, for example, about 5 inches, or about 5.5 inches, or about 6 inches, or about 6.5 inches, or about 7 inches, or about 7.5 inches, or about 8 inches, or about 8.5 inches, or about 9 inches, or about 9.5 inches, or about 10 inches, or about 10.5 inches, or about 11 inches, or about 11.5 inches, or about 12 inches, or about 12.5 inches, or about 13 inches, or about 13.5 inches, or about 14 inches, or about 14.5 inches, or about 15 inches, or about 15.5 inches, or about 16 inches, etc., or any number in between, above, or below such recited examples. In some implementations, the length of the longitudinal axis, Xt, between the ends 2801a,b of the curved tube 2800 is between about 5 inches and about 20 inches, or between about 8 inches and about 15 inches, or between about 9 inches and about 13 inches, or between about 10 inches and about 12 inches, etc.
As shown in
As shown, the coupling features 2802a,b are slots positioned along and/or within the outer and inner edges 2808a,b and 2810a,b of the halves 2800a,b and the coupling features 2804a,b are elongated hooks positioned along and/or protruding from the outer and inner edges 2808a,b and 2810a,b of the halves 2800a,b that deflect to enter the slots and then clip or snap into place, thereby holding the first and the second halves 2800a,b together. While the curved tube 2800 is shown and described as being two separate and distinct elements, the curved tube 2800 can be made from any number of parts (e.g., one, two, three, four, ten, twenty, etc.) and/or the curved tube 2800 can be a single monolithic part.
By forming the curved tube 2800 from two identical parts, the process for making the curved tube 2800 can be simplified using fewer steps and molding parts. This also permits the shipping container/box including one or more of the curved tubes 2800 to be made relatively smaller as the two halves 2800a,b can be nested within one another and/or nested within other like halves of additional curved tubes 2800 included in, for example, a set of tubes having multiple ones of the curved tubs 2800.
As best shown in
Each of the coupling portions 2820a,b further includes a pair of opposing tabs 2840a,b (only the top one of each pair is shown in
Now referring to
As shown in
As shown, the coupling features 2902a,b are channels along and/or within the edges of the halves 2900a,b and the coupling features 2904a,b are wide protrusions or tabs along the edges of the halves 2900a,b that deflect to enter the channels and then hold in place (e.g., press fit, friction fit, snap-fit, click, etc. or a combination thereof), thereby holding the first and the second halves 2900a,b together. Further, the coupling features 2906a are protruding posts positioned at four corners of the central portion 2915 (
The coupling portions 2920a,b,c,d of the intersection tube 2900 are the same as, or similar to, the coupling portions 2820a,b described above in connection with the curved tube 2800. Specifically, each of the coupling portions 2920a,b,c,d includes a multitude of circumferentially extending ridges 2925a,b,c,d, relief spaces 2930a,b,c,d, and a pair of opposing tabs 2940a,b,c,d, which are the same as, or similar to, the multitude of circumferentially extending ridges 2825a,b, relief spaces 2830a,b, and the pairs of opposing tabs 2840a,b described above in connection with the curved tube 2800.
The upper half 2900a of the intersection tube 2900 mainly differs from the lower half 2900b of the intersection tube 2900 in that the central portion 2915 is open in the upper half 2900a and closed in the lower half 2900b. The opening in the central portion 2915 of the upper half 2900a permits a user/operator of the network of interconnected tubes including the intersection tube 2900 to manipulate one or more vehicles, which might be stopped or disabled in the intersection tube 2900 due to, for example, a crash between two vehicles therein. The intersection tube 2900 can also be referred to as a crash tube as it provides an intersection path in which two vehicles traveling in the same or opposite or crossing/orthogonal directions can collide and crash. The opening in the upper half 2900a also provides a means for introducing vehicles into an otherwise closed loop or network of interconnected tubes.
Referring to
Various other shapes for the tube-coupler 3000 are contemplated such that the tube-coupler 3000 can couple two tubes together (e.g., two curved tubes, two straight tubes, two intersection tubes, one straight tube with one curved tube, etc.). For example, the tube-coupler 3000 can have a generally curved L-shape, a generally U-shape, a generally curved angled shaped, a curved/arc shape, etc. or any combination thereof.
The tube-coupler 3000 can be short or long, where the length of the tube-coupler along its longitudinal axis, Xt, between the ends 3025a,b of the tube-coupler 3000 can be any number, such as, for example, about 1 inch, or about 1.25 inches, or about 1.5 inches, or about 1.75 inches, or about 2 inches, or about 2.25 inches, or about 2.5 inches, or about 2.75 inches, or about 3 inches, or about 3.25 inches, or about 3.5 inches, or about 3.75 inches, or about 4 inches, or about 4.25 inches, or about 4.5 inches, or about 4.75 inches, or about 5 inches, or about 5.5 inches, or about 6 inches, or about 8 inches, or about 10 inches, etc. or any number in between, above, or below such recited examples. In some implementations, the length of the longitudinal axis, Xt, between the ends 3025a,b of the tube-coupler 3000 is between about 1 inch and about 20 inches, or between about 1.5 inches and about 10 inches, or between about 1.5 inches and about 5 inches, or between about 2 inches and about 3 inches, etc.
The tube-coupler 3000 is shown as a monolithic part; however, the tube-coupler 3000 can be made from any number of parts (e.g., one, two, three, four, ten, twenty, etc.).
The first tube-coupling portion 3020a of the tube-coupler 3000 is configured to lockingly couple (e.g., twist-to-lock) with a coupling portion of a first tube (e.g., curved tube 2800, intersection tube 2900, a straight tube, etc.) and the second tube-coupling portion 3020b of the tube-coupler 3000 is configured to lockingly couple (e.g., twist-to-lock) with a coupling portion of a second tube (e.g., curved tube 2800, intersection tube 2900, a straight tube, etc.) that is separate and distinct from the first tube. Likewise, the same tube-coupling portions 3020a, 3020b can be decoupled from the corresponding tubes 2800, 2900 by aligning a tab with a corresponding groove as described below using a twist-and-pull-to-unlock manipulation in which the coupling portion and tube are twisted relative to one another and then pulled apart once the tab aligns with the groove to decouple the two parts from one another.
Each of the tube-coupling portions 3020a,b defines a generally circular opening 3025a,b through which the coupling portion of the tube is inserted. Each of the tube-coupling portions 3020a,b also includes a pair of opposing inwardly tapered grooves 3030a,b, which are sized and position to receive therein a pair of opposing tabs (e.g., the pair of opposing tabs 2840a,b, the pair of opposing tabs 2940a,b,c,d) of a coupling portion of a tube. The inwardly tapered grooves 3030a,b provide access for the opposing tabs into a circumferentially extending channel 3040a,b of the tube-coupling portions 3020a,b. While the circumferentially extending channel 3040a,b is shown to include the entire circumference, it is contemplated that the circumferentially extending channel 3040a,b is only partially circumscribing (e.g., only 50 percent circumscribing, only 60 percent circumscribing, only 70 percent circumscribing, only 80 percent circumscribing, only 90 percent circumscribing, etc. or any amount below, above, or in between such recited examples).
Responsive to a pair of opposing tabs of a tube being received in one of the circumferentially extending channels 3040a,b, the tube can be “locked” with the tube-coupler 3000 by twisting and/or rotating the tube and/or the tube-coupler 3000 relative to one another such that the pair of opposing tabs of the tube are offset from (e.g., not aligned with) the inwardly tapered grooves 3030a,b. As such, the tube and the tube-coupler 3000 are locked and/or held together/coupled. Similar to the tabs 2402 described above, the tabs 2840a,b can be slightly wider/oversized than the entrance(s) to the circumferentially extending channel 3040a,b which aids in preventing tubes from inadvertently releasing or decoupling from the tube-coupler 3000 when the tabs 2840a,b and entrance(s) to the circumferentially extending channel 3040a,b are aligned during relative rotation. By slightly wider it is meant, for example, about one percent wider, or about two percent wider, or about three percent wider, or about five percent wider, or about ten percent wider, or about twenty percent wider, etc. The slightly wider tabs 2840a,b also provides an interlock that aids in further supporting relative 360 degrees of rotation of the tube and tube-coupler 3000.
As best shown in
Referring to
The body 3110 can be formed from any number of separate parts coupled together (e.g., two parts, three parts, five parts, ten parts, etc.) and/or the body 3110 can be a single monolithic part. As shown in
As shown, the body 3110 has a shape that approximates the shape of a rectangular cuboid having a tapered and/or curved front end 3112 (e.g., for aerodynamics) and a generally flat rear end or tail 3114. Note that the terms front and rear denote opposite ends of the body, and not necessarily a direction of travel as the vehicle can travel in either direction. If the vehicle has the motorized wheel on one end that propels the vehicle forward from the motorized wheel, the end of the body where the motorized wheel is located can be referred to as the front end. An upper surface 3116 (
The length of the body 3110 between the ends 3112 and 3114 can be any number, such as, for example, about 1.0 inch, or about 1.25 inches, or about 1.5 inches, or about 1.75 inches, or about 2.0 inches, or about 2.25 inches, or about 2.5 inches, or about 2.75 inches, or about 3.0 inches, or about 3.25 inches, or about 3.5 inches, or about 3.75 inches, or about 4.0 inches, or about 4.25 inches, or about 4.5 inches, or about 4.75 inches, or about 5.0 inches, or about 5.25 inches, or about 5.5 inches, or about 5.75 inches, or about 6.0 inches, etc. or any number in between, above, or below such recited examples. In some implementations, the length of the body 3110 is between about 1 inch and about 6.0 inches, or between about 1.5 inches and about 4 inches, or between about 2 inches and about 3.5 inches, or between about 2.5 inches and about 3 inches, etc. In some implementations, the length of the body 3110 is 2.98 inches, or about 2.98 inches, or between 2.9 inches and 3.1 inches.
The height of the body 3110 between the upper surface 3116 and the lower surface 3120 and/or the width of the body 3110 between the left and right sides 3118a,b can be any number, such as, for example, about 0.25 inches, or about 0.5 inches, or about 0.75 inches, or about 1.0 inch, or about 1.25 inches, or about 1.5 inches, or about 1.75 inches, or about 2.0 inches, or about 2.25 inches, or about 2.5 inches, or about 2.75 inches, or about 3.0 inches, or about 3.25 inches, or about 3.5 inches, or about 3.75 inches, or about 4.0 inches, etc. or any number in between, above, or below such recited examples. In some implementations, the height and/or the width of the body 3110 is between about 0.25 inches and about 4.0 inches, or between about 0.5 inches and about 3 inches, or between about 0.5 inches and about 2 inches, or between about 0.75 inches and about 1.25 inches, etc. In some implementations, the height of the body 3110 is 0.79 inches, or about 0.79 inches, or between 0.75 inches and 0.85 inches. In some implementations, the width of the body 3110 is 0.95 inches, or about 0.95 inches, or between 0.90 inches and 1.00 inches. As disclosed herein, the particular dimensions of the parts of the vehicle can be constrained by the geometries of the most restrictive curved tube (e.g., radius and/or inner diameter) through which the vehicle is propelled inside the network of interconnected tubes, so any dimensions given herein are intended to be combined with other dimensions according to the formulas described below and other constraints or ratios disclosed herein.
As best shown in
The motorized wheel 3150 is coupled to a motor 3152 (
The biasing assembly 3175 is coupled to the body 3110 and includes a pivotable arm 3180, one or more springs or biasing elements 3185 (
As best shown in
The biasing assembly 3175 can aid in traction and preventing and/or minimizing wobbling or jittery or stochastic/erratic movements of the vehicle 3100 when moving through the network of interconnected tubes. That is, by forcing the motorized wheel 3150 to maintain a first point of contact with the inside surface of the tubes and also forcing the sprung wheel 3190 to maintain a second point of contact with the inside surface of the tubes, the front end 3112 of the vehicle is stabilized (e.g., wobble reduction/prevention) in the up-down and/or vertical dimension, where vertical is relative to the orientation of the vehicle 3100. It is noted that the vehicle 3100 can have any rotational position within the network of interconnected tubes as the tubes can be designed/assembled to cause the vehicle 3100 to rotate about its longitudinal axis X, go upside down (e.g., with respect to earth), etc.
Other elements can be included to further limit wobbling of the vehicle 3100 during operation, which can aid the vehicle 3100 in having a smoother ride within the tubes. For example, a biasing assembly (not shown), similar to the biasing assembly 3175 can be positioned adjacent to the rear 3114 of the vehicle 3100 to ensure two more points of contact between the vehicle 3100 and the inside surface of the tubes are maintained, thereby reducing/preventing wobbling of the rear end 3114 of the vehicle 3100, for example, in the up-down and/or vertical dimension, in the side-to-side or horizontal direction, or in any direction in between vertical and horizontal (e.g., on an angle relative to vertical and/or horizontal), or any combination thereof. In other implementations, wobbling or other stochastic movements of the vehicle may be desirable as it is propelled through the network of interconnected tubes to create unpredictability, surprise, or other visual or aural effects to the user who is controlling or observing the vehicle.
For another example, a pair of side bumper wheels 3192a,b coupled to the left side 3118a and the right side 3118b, respectively, can be included in the vehicle 3100 to aid in reducing or suppressing wobbling of the vehicle 3100 during operation (e.g., in a side-to-side or horizontal orientation). A transverse distance between the outermost point of a first of the side bumper wheels 3192a and the outermost point of a second of the side bumper wheels 3192b is defined as distance, D2 (not shown in the drawings). In some implementations, the distance, D2, is 1.34 inches, or about 1.34 inches, or between 1.3 inches and 1.4 inches. Unlike the distance, D1, the distance, D2, is fixed and is selected based on the inner diameter, D, of the network of interconnected tubes such that the vehicle 3100 readily fits with the tubes, but also provides anti-wobbling assistance by preventing relatively large side-to-side or horizontal movements of the front end 3112 of the vehicle 3100 within the tubes during operation, particularly around curved sections of the network of interconnected tubes. Specifically, for example, the pair of side bumper wheels 3192a,b can define the distance, D2, such that the vehicle 3100 can move side-to-side a distance that is less than about fifteen percent of the inner diameter of the tubes, less than about twelve percent of the inner diameter of the tubes, less than about ten percent of the inner diameter of the tubes, less than about eight percent of the inner diameter of the tubes, less than about five percent of the inner diameter of the tubes, less than about three percent of the inner diameter of the tubes, less than about two percent of the inner diameter of the tubes, or less than about one percent of the inner diameter of the tubes, etc. In some implementations, one or both of the pair of side bumper wheels 3192a,b are sprung in the same, or similar, fashion as the sprung wheel 3190.
As best shown in
Now referring to
As discussed above, the motorized wheel 3150 and the sprung wheel 3190 are biased such that the two contact points 3201a,b are generally maintained during operation of the vehicle 3100. However, the contact point 3201c can be sporadic due to movement of the vehicle 3100 through the network of interconnected tubes. Thus, in some other instantaneous positions of the vehicle 3100, instead of and or in addition to the rear or trailing wheel and/or element 3195d contacting the inside surface of the curved tube 2800 at point 3201c, one or more or none of the other rear or trailing wheels and/or elements 3195a-c may contact the inside surface of the curved tube 2800.
As best shown in
The waist, Wv, of the vehicle 3100 is a key design factor for designing the dimensions of the body 3110 and the contact points such that the vehicle 3100 can move freely within the network of interconnected tubes without being jammed or getting stuck therein as described above. Put another way, the waist, Wv, of the vehicle 3100 needs to have appropriate dimensions such that when the vehicle 3100 moves through the curved tube 2800, the lower surface 3120 of the body 3110 does not touch or bind with any part of the circumferential inner surface of the curved tube 2800. Similarly, it is not just the waist, Wv, of the vehicle 3100 that needs to be addressed, but the entirety of the lower surface 3120 needs to avoid the inner surface of the curved tube 2800 along all sections of the curved tube 2800. In an extreme example, the lower surface 3120 of the body 3110 can form an arc shape located between the contact points 3201a,c and that corresponds and conforms in shape to the radius of curvature of the curved tube 2800. By “lower surface” it is understood that the lower surface 3120 is discussed just for the illustrated views for explanatory purposes and that because the vehicle can rotate 360 degrees about its longitudinal axis, Xv, the “lower surface” for purposes of designing the required clearances of the body 3110 and the vehicle 3100 can be any of the surfaces of the vehicle 3100 (e.g., the upper surface 3116, the lower surface 3120, the side surfaces 3118a,b, or any combination thereof).
Other dimensional factors that impact the design, shape, and size of the body 3110 and the vehicle 3100 generally include the inner diameter, D, of the tubes (e.g., curved tube 2800, intersection tube 2900, tube-coupler 3000, straight tubes, etc.), and the radius of curvature, R, of the curved tube 2800. The relationship of these three dimensional factors can be expressed in terms of equations that define the size and/or shape of the body 3110 and/or the vehicle 3100 generally.
To better understand the relationships of the waist, Wv, of the vehicle 3100, the contact points between the vehicle 3100 and curved tube 2800, the inner diameter, D, of the tubes, and the radius of curvature, R, of the curved tube 2800, reference is made to
The maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300 is d, which dimension must be observed circumferentially entirely about the body 3310. The following equations can be used to solve for d. A midline, ML, of the body 3310 splits the body 3310 at its center. A central axis, Xt, of the curved tube 2800 splits the curved tube 2800 at is center. The distance between the midline, ML, of the body 3310 and the central axis, Xt, of the curved tube 2800 is defined as b. The distance between the midline, ML, of the body 3310 and the inside edge 2810a,b of the curved tube 2800 at the waist, Wv, of the vehicle 3300 is defined as “x.” The distance between the midline, ML, of the body 3310 and a center or origin of curvature, O, of the curved tube 2800 is defined as “a.” The distance between the centers of the circles 3350 is defined as L, also referred to as the wheelbase of the vehicle 3300. The term “wheelbase” is used to describe the distance even when one of the “wheels” is not a wheel and rather just a bearing surface, such as, for example, a ski or sled rail. The diameter of the circles 3350 is defined as “D,” which is equal to the inner diameter of the curved tube 2800 such that each of the circles 3350 maintains two points of contact with the inner surface of the curved tube 2800 at all times in the same, or similar, manner as the motorized wheel 3150 and the sprung wheel 3190. The radius of curvature of the curved tube 2800 is defined by “R” from the center or origin of curvature, O, of the curved tube 2800 to the central axis, Xt, of the curved tube 2800. An angle, θ, is defined as the angle between radius of curvatures, R, between the centers of the circles 3350.
To solve for “d” (i.e., the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300), (equation 1) is:
which is a known relationship based on the diameter of the circles 3350 being equal to the inner diameter of the curved tube 2800. It is known from
Solving for “d,” yields (equation 4): [d=D−2b].
(Equation 5) is: [a+b=R or b=R−a]. Plugging (equation 5) into (equation 4) yields (equation 6): [d=D−2(R−a)]. Based on the Pythagorean theorem, (equation 7) is:
Solving (equation 7) for “a” yields (equation 8):
Plugging (equation 8) into (equation 6) yields (equation 9):
As shown by equation 9, the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300 or “d,” is based on the inner diameter, D, of the curved tube 2800, the radius of curvature, R, of the curved tube 2800, and the length of the wheelbase, L, of the vehicle 3300.
With reference to (equation 9), Table 1 shows various example values for the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300, d, with varying values for D, R, and L, and calculated ratio values for D/R as given below.
As shown in the specific examples of Table 1, as the radius of curvature, R, of the curved tube 2800 decreases (examples 1-10), the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300, d, also decreases. As the inner diameter, D, of curved tube 2800 decreases (examples 11-19), the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300, d, also decreases. As the length, L, of the wheelbase of the vehicle 3300 decreases (examples 20-28), the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300, d, increases.
An alternative equation to solve for “d” (i.e., the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300), can be provided, which uses equations 1, 2, 3, and 4 above. Further, it is known from
Solving for “a” yields (equation 11):
It is also known from
As shown by equation 14, the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300, d, is based on the inner diameter, D, of the curved tube 2800, the radius of curvature, R, of the curved tube 2800, and the angle, θ, between the centers of the circles 3350, which corresponds to the wheelbase, L, of the vehicle 3300.
With reference to (equation 14), Table 2 shows various values for the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300, d, with varying values for D, R, and θ, and calculated ratio values for D/R as given below.
As shown in the specific examples of Table 2, as the radius of curvature, R, of the curved tube 2800 decreases (examples 1-10), the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300, d, increases. As the inner diameter, D, of curved tube 2800 decreases (examples 11-19), the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300, d, also decreases. As the angle, θ, between the radius of curvatures, R, of the centers of the circles 3350 (corresponding to the wheelbase of the vehicle 3300) decreases (examples 20-28), the maximum overall height for the body 3310 at the waist, Wv, of the vehicle 3300, d, increases.
As mentioned above, the particular example values of the dimensions of the various parts disclosed herein can be combined in any combination (and plugged into the equations above) so long as the combined dimensions produce a waist dimension that accords with at least one of the formulas given above (e.g., the combined dimensions produce a positive number for d). An important ratio discovered by the inventors is D/R, which in the above tables, can range from 0.130 to 0.365, which constrains the waist dimension, d, to values that will allow the body of the vehicle to travel through any curved tube having a given radius of curvature, R, and a given inner diameter, D.
A spherical-shaped or spheroid object can be also introduced into the tubes in front of the vehicle. The rolling object can include a vibration-sensitive sensor that activates one or more LEDs and/or one or more speakers that produce sound inside the tube, so that when the vehicle comes into contact with the object, the object is propelled ahead of the vehicle or pushed by the vehicle, flashing lights and/or making sounds like car engine noises. These sounds can be carried and amplified through the tubes, creating a three-dimensional sound effect in the tubes that appears to the human operator remotely controlling the vehicle that the sounds are emanating from a volumetric space around the operator. When the tubes are in a dark environment, a strobing or flashing light pattern on the LEDs in the rolling object can create a moving pattern of strobing or flashing lights through the transparent or semi-transparent (non-opaque) tube sections. Holes or other sound amplifiers can be provided in parts of the walls of the tube sections to create interesting sound effects as the ball and/or vehicle traverses the holes or other amplifiers.
This application is a continuation of U.S. patent application Ser. No. 15/788,758, filed Oct. 19, 2017, which is a continuation-in-part of International Application No. PCT/US17/028565, filed Apr. 20, 2017, which claims priority to and the benefit of U.S. Provisional Application No. 62/325,293, filed Apr. 20, 2016, each of which is hereby incorporated by reference herein in its entirety.
Number | Name | Date | Kind |
---|---|---|---|
1661674 | Osborn | Mar 1928 | A |
2537284 | Schuder | Jan 1951 | A |
3066959 | White | Dec 1962 | A |
3069805 | Burrows | Dec 1962 | A |
3343793 | Waser | Sep 1967 | A |
3633309 | Yoshie | Jan 1972 | A |
3752472 | Snead | Aug 1973 | A |
4231294 | Arzoumanian | Nov 1980 | A |
4770105 | Takagi | Sep 1988 | A |
4838170 | Illakowicz | Jun 1989 | A |
5142989 | Suzumori et al. | Sep 1992 | A |
5392715 | Pelrine | Feb 1995 | A |
5507679 | Getsay | Apr 1996 | A |
5878783 | Smart | Mar 1999 | A |
5971404 | Stoves | Oct 1999 | A |
6123027 | Suyama | Sep 2000 | A |
7017953 | Benscoter | Mar 2006 | B2 |
7025656 | Bailey | Apr 2006 | B2 |
8571711 | Jacobsen | Oct 2013 | B2 |
9027740 | Boehrer | May 2015 | B2 |
9528651 | Hsu | Dec 2016 | B2 |
9731212 | Cheung | Aug 2017 | B2 |
20050266768 | Bailey | Dec 2005 | A1 |
20090130946 | Fink | May 2009 | A1 |
20100304640 | Sofman | Dec 2010 | A1 |
20110006978 | Yuan | Jan 2011 | A1 |
20110052335 | Haberl | Mar 2011 | A1 |
20130040767 | Gill | Feb 2013 | A1 |
20130171910 | Mimlitch, III et al. | Jul 2013 | A1 |
20150122903 | Boyce | May 2015 | A1 |
20150285424 | Hsu | Oct 2015 | A1 |
20160220915 | Cheung | Aug 2016 | A1 |
Number | Date | Country |
---|---|---|
1813995 | Dec 1969 | DE |
1813995 | Dec 1969 | DE |
2096474 | Oct 1982 | GB |
2301162 | Nov 1996 | GB |
1209265 | Mar 2016 | HK |
1209265 | Mar 2016 | HK |
5507679 | May 2014 | JP |
201000024 | Jan 2010 | KR |
M497044 | Mar 2015 | TW |
9916523 | Apr 1999 | WO |
2015009305 | Jan 2015 | WO |
WO 2016026039 | Feb 2016 | WO |
Entry |
---|
International Search Report issued in corresponding International Patent Application No. PCT/US2017/028565, dated Sep. 7, 2017 (6 pages). |
Written Opinion of the International Searching Authority issued in corresponding International Patent Application No. PCT/US2017/028565, dated Sep. 7, 2017 (7 pages). |
Third-Party Observation in International Patent Application No. PCT/US2017/028565, dated Jul. 20, 2018 (50 pages). |
International Search Report and Written Opinion of International Searching Authority in International Application No. PCT/US2018/056573, dated Jan. 2, 2019 (16 pages). |
Extended European Search Report for Application No. EP 17786621.7, dated Oct. 8, 2019 (10 pages). |
Number | Date | Country | |
---|---|---|---|
20190076746 A1 | Mar 2019 | US |
Number | Date | Country | |
---|---|---|---|
62325293 | Apr 2016 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 15788758 | Oct 2017 | US |
Child | 16134636 | US |
Number | Date | Country | |
---|---|---|---|
Parent | PCT/US2017/028565 | Apr 2017 | US |
Child | 15788758 | US |