Not applicable.
The present disclosure relates to a rapid transit system. More particularly, the present disclosure relates to a wheel in track design for on vehicle switching for a rapid transit system.
Transportation has dramatically evolved over the last couple of centuries, from horses to supersonic passenger airplanes and everything in between. With the evolution in transportation technology, trains have also evolved. Trains were an important part of expanding the United States, and for many years, they were one of the few forms of transportation that could carry numerous passengers from east to west coast. Contemporary train-like transportation may include rapid transit whether underground, at ground level, or elevated. In addition, transportation via tracks is not only limited to trains but may also be found on roller coasters as well as in facilities utilizing conveyor belts. Many of these systems rely on switches to move the vehicle from one track to another, whether the switches are on board switching mechanisms or in track switching mechanisms.
No matter the location of the rapid transit, switches are essential so as to allow the train or vehicle to switch from one track to another. For a train to move from one track to another, requires a rail switch. These switches come in a variety of forms, such as single rail switches, driving rail switches, and equilateral rail switches. Switches often require complicated systems that utilize numerous tracks to move a train from one track to another. Other switching mechanisms are found on vehicles, meaning that switching is determined by mechanisms on the vehicle and not the tracks. Many of these vehicles use steered wheels to switch from track to track. These vehicles with steered wheels require heavier guideways and vehicles. Thus, these vehicles are limited in speed and braking ability. Steered wheels also increase design complexity and may not address potential derailment. Alternatives that use a switching rail are complex which increases costs, and could reduce reliability.
Accordingly, there is a need for a simple on vehicle switching mechanism that allows numerous speeds, increases braking ability, and decreases design complexity, thereby leading to decreased costs and increased safety. The present invention seeks to solve these and other problems.
In one embodiment, a rapid transit system with wheel in track design (hereinafter referred to as a “rapid transit system”) comprises a guideway, a vehicle that includes a vehicle bogie or chassis that couples to the guideway, and one or more terminals and/or intermediate stations. The guideway may be located at, above, or below grade, capable of fully or partially constraining the vehicle. The guideway may be designed so that it wraps around the vehicle or bogie, with guide rails positioned so that they will not interfere with switching rails. The guideway may comprise a first guideway and a second guideway, with a switch guideway interposed thereinbetween that allows the vehicle to move from the first guideway to the second guideway or vice versa. The first guideway may comprise a first sidewall, a second sidewall, a first base, and a first top side. The first guideway may comprise one or more first neutral guide rails that, in some embodiments, assist the vehicle in forward or backward movements along the first guideway. The first neutral guide rail may include a first protrusion extending from and perpendicular to the first sidewall so as to receive switch wheels.
The second guideway may comprise a third sidewall, a fourth sidewall, a second base, and a second top side. The second guideway may comprise one or more second neutral guide rails that, in some embodiments, moves the vehicle forward or backward along the second guideway. The second neutral guide rail may include a second protrusion extending from and perpendicular to the fourth sidewall. It will be appreciated that the first and second neutral guide rails allow the vehicle to be continuously coupled to the first or second guideways, which prevents derailments and allows the guideway and vehicle to be positioned upside down or sideways, for example, at an amusement park.
The switch guideway may be interposed between the first guideway and the second guideway. The switch guideway may be positioned at an angle between the first guideway and the second guideway to allow for smooth transition therebetween. The switch guideway may comprise a first switch sidewall, a second switch sidewall, a switch base, and a switch top side. The switch guideway may comprise two or more switch guide rails. In some embodiments, a first switch guide rail may include a first switch protrusion extending from and perpendicular to the first switch sidewall. A second switch guide rail may include a second switch protrusion extending from and perpendicular to the second switch sidewall. The first and second switch guide rails allow a vehicle to easily move from guideway to guideway.
The vehicle may be coupled to the guideway via the vehicle bogie. The bogie may be received by the guideway. The bogie may comprise a main support frame. Coupled to the main support frame may be a first axle, a second axle (e.g., a switch axle), and a third axle. To move the vehicle down the guideway, in normal operation, the first and second sets of guidewheels are positioned in the upper and lower corners or tracks of the guideway. The first and second sets of guidewheels propel the vehicle forward or backward. The first set of switch wheels and/or the second set of switch wheels may be engaged and interact with the one or more first or second neutral rails or first and second switch rails.
In one embodiment, a rapid transit system may comprise a guideway, which may comprise one or more neutral guide rails to interact with a first neutral wheel, one or more switch guide rails to interact with a first switch wheel, and one or more combination guide rails to interact with a second neutral wheel and a second switch wheel. A vehicle bogie may comprise the first neutral wheel, the first switch wheel, the second neutral wheel, the second switch wheel, and guide wheels that interact with guide rails or tracks in each corner of the guideway.
In one embodiment, a rapid transit system may comprise a guideway, which may comprise first combination guide rail and second combination guide rail. The first combination guide rail may protrude from a first sidewall and comprise a first neutral rail on a first upper surface and a first switch rail on a first lower surface. The second combination guide rail may protrude from a second sidewall and comprise a second neutral rail on a second upper surface and a second switch rail on a second lower surface. The first and second neutral rails may receive neutral wheels that are coupled to a vehicle bogie. The first and second switch rails may receive switch wheels that are coupled to the vehicle bogie. In addition, guide wheels that are coupled to the vehicle bogie may be positioned at an upper portion of the guideway and a lower portion of the guideway.
In one embodiment, a rapid transit system may comprise a guideway that may receive a vehicle bogie with a plurality of guidewheels. The guideway may comprise a first switch guide rail (e.g., switch to the left) and a second switch guide rail (e.g., switch to the right).
While embodiments of the present disclosure may be subject to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and will be described in detail herein. However, the present disclosure is not intended to be limited to the particular features, forms, components, etc. disclosed. Rather, the present disclosure will cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure.
Reference to the invention, the present disclosure, or the like are not intended to restrict or limit the invention, the present disclosure, or the like to exact features or steps of any one or more of the exemplary embodiments disclosed herein. References to “one embodiment,” “an embodiment,” “alternate embodiments,” “some embodiments,” and the like, may indicate that the embodiment(s) so described may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic.
Any arrangements herein are meant to be illustrative and do not limit the invention's scope. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. Unless otherwise defined herein, such terms are intended to be given their ordinary meaning not inconsistent with that applicable in the relevant industry and without restriction to any specific embodiment hereinafter described.
It will be understood that the steps of any such processes or methods are not limited to being carried out in any particular sequence, arrangement, or with any particular graphics or interface. In fact, the steps of the disclosed processes or methods generally may be carried out in various, different sequences and arrangements while still being in the scope of the present invention. Certain terms are used herein, such as “comprising” and “including,” and similar terms are meant to be “open” and not “closed” terms. These terms should be understood as, for example, “including, but not limited to.”
As previously described, there is a need for a simple on vehicle switching mechanism that allows numerous speeds, increases braking ability, and decreases design complexity, thereby leading to decreased costs and increased safety. The present invention seeks to solve these and other problems.
Transportation continues to evolve as technology increases. Rapid transit has been important to many around the world, with it being the only means of transportation for some people throughout the world. These systems rely on complex switches to move a vehicle from one track to another, whether the switches are on board switching mechanisms or in track switching mechanisms. No matter the location of the rapid transit, switches are essential so as to allow the vehicle to switch from one track to another. Some switching mechanisms are found on vehicle, meaning that switching is determined by mechanisms on the vehicle and not the tracks. Many of these vehicles use steered wheels to switch from track to track. These vehicles with steered wheels require heavier guideways and vehicles. Thus, these vehicles are limited in speed and braking ability. Steered wheels also increase design complexity. Alternatives that use a switching rail are complex which increases costs, and could reduce reliability.
The rapid transit system described herein comprises a guideway and a vehicle with a bogie. The guideway may include a first guideway, a second guideway, and a switch guideway. The first and second guideways may have one or more neutral guide rails that interact with switching wheels on the vehicle bogie. In particular, a switch axle having switch wheels may adjust from a first position to a second position or vice versa via a switching mechanism to engage the one or more neutral guide rails or engage with switch rails, which will allow the vehicle to move to a different track and be continuously coupled to the guideway. It will be appreciated that the simple on-board switching mechanism allows the vehicle to move from guideway to guideway with moving guide wheels positioned on the bogie. In other words, all switching is provided by rails on the guideways and movement of the switch axle. It will also be appreciated that the configuration of the bogie and the guideway allows the vehicle and bogie to be operated upside, to the side, or at any other position.
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The second guideway 108B may be rectangular shaped and have second angled corners (e.g., tracks) 128A-128D. Each angled corner 128A-128D may be capable of receiving guide wheels of the vehicle bogie 106, as discussed below. While a rectangular shape is illustrated, other shapes may be envisioned, such as ovular. It will also be appreciated that while the corners 128A-128D are shown as angled, in some embodiments, the corners 128A-128D may not be angled. The second guideway 108B may comprise a third sidewall 130A, a fourth sidewall 130B, a second base 130C, and a second top side 130D. The second top side 130D may comprise a second guideway opening 132 so as to receive the vehicle bogie 106. The second guideway 108B may comprise one or more second neutral guide rails 134 that, in some embodiments, assists the vehicle 104 moving forward or backward along the second guideway 108B. The second neutral guide rail 134 may include a second protrusion 136 extending from and perpendicular to the fourth sidewall 130B. However, it will be appreciated that the second neutral guide rail 134 may be placed on the third sidewall 130A alone or in conjunction with the second neutral guide rail 134 on the fourth sidewall 130B. The second protrusion 136 may comprise an upper surface 138A and a lower surface 138B. The second protrusion 136, at an end opposite insertion into the fourth sidewall 130B, may have a second hook 140 extending upward therefrom and back toward the fourth sidewall 130B that creates a second protrusion aperture 142 and a second protrusion channel 144. It will be appreciated that the first and second neutral guide rails 116, 134 allow the vehicle 104 to be continuously coupled to the first or second guideways 108A, 108B, which prevents derailments and allows the guideway 102 to be positioned upside down or sideways, for example, at an amusement park.
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The guideway 102 may be designed for vehicles 104A-104C to ride inside, above, below, to the side, or at various positions in relation to the guideway 102. In some embodiments, the guideway 102 may include a system for wireless power transmission to vehicles 104, or an energized rail to provide direct electric power. In some embodiments, the guideway 102 may include an additional brake rail to allow brakes to be applied directly to the guideway 102. In some embodiments, the guideway 102 may include markings or wireless transmitters for the purpose of locating vehicles on the guideway 102. The guideway 102 may include wireless data transmitters and receivers to allow vehicles to communicate with each other or a centralized control system, and to provide Internet access to passengers.
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In some embodiments, the first body 174A may comprise at least one door 178A that allows entrance into an interior compartment 178B, which may include at least one passenger seat 178C. The first body 174A may comprise a first window 178D on the front portion 172A of the vehicle 104A. The first body 174A may be used with at least one passenger. In some embodiments, the second body 174B, may comprise one or more doors 180A allowing access to an interior compartment 180B, which may include one or more passenger seats 180C. The second body 174B may comprise a front window 180D in the front portion 172A and a first side window 180E and a second side window 180F. The third body 174C, in some embodiments, may comprise one or more doors 182A allowing access to an interior compartment including one or more passenger seats. The third body 174C as illustrated may not have windows; however, it could be envisioned that in some embodiments, the third body may have windows. The third body 174C may be utilized when numerous passengers need to be transported. It will be appreciated that the vehicle 104 is not limited to carrying passengers and may also carry cargo and carry out maintenance functions on the guideway 102 with or without a driver in a point-to-point fashion without being required to stop or transfer at intermediate points.
The vehicle 104A-104C, no matter if it is the first, second, or third body 174A-174C, can be coupled to the guideway 102. The guideway 102 may comprise vehicles 104A-104C with the first, second, and third bodies 174A-174C at the same time coupled thereto.
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The second axle 186B may be coupled perpendicularly to the main support frame 184. At a first end 192A of the second axle 186B, there may be, coupled thereto, a first switch axle 194A that is perpendicular to the second axle 186B. The first switch axle 194A may comprise a first set of switch wheels 196A, 196B to interact with the one or more first and second neutral rails 116, 134 and switch rails 150A, 150B. At a second end 192B, opposite the first end 192A, there may be, coupled thereto, a second switch axle 194B that is perpendicular to the second axle 186B. The second switch axle may comprise a second set of switch wheels 196C, 196D to interact with the one or more first and second neutral rails 116, 134 and switch rails 150A, 150B. The second axle 186B may raise and lower so as to engage with the neutral rails 116, 134 and the switch rails 150A, 150B.
The third axle 186C may be perpendicular to the main support frame 184 and coupled thereto at a lower portion 188B of the main support frame 184. The third axle 186C may comprise a second set of guide wheels 198A, 198B that interact with lower corners in the guideway 102. In some embodiments, the second set of guide wheels 198A, 198B may be at an angle (e.g., at an obtuse and/or a reflex angle) to match the angle of the lower corners. In some embodiments, the second set of guide wheels 198A, 198B may be parallel with the sidewalls 112A, 112B, 130A, 130B of the guideway 102. In an alternate embodiment, the second set of guide wheels 198A, 198B may be perpendicular to the sidewalls 112A, 112B, 130A, 130B of the guideway 102.
While certain number of guidewheels 190A-190B, 198A-198B and switch wheels 196A-196D are illustrated, in some embodiments, there may be more or less guidewheels and switch wheels than what is illustrated, such as four first guidewheels, four second guidewheels, and two switch wheels.
To move the vehicle 104A-104C down the guideway 102, in normal operation 199A, the first and second sets of guidewheels 190A, 190B, 198A, 198B are positioned in the upper and lower corners or tracks 110A-110D, 128A-128D of the guideway 102, respectively. The first and second sets of guidewheels 190A, 190B, 198A, 198B propel the vehicle 104A-104C forward or backward. In normal operations, as shown in
In a neutral position 199B, as shown in
In the switch or active position 199C, as shown in
In order to switch from the active to neutral positions 199C, 199B, in one embodiment, as shown in
In an alternate embodiment, referring back to
When the vehicle 104 comprises more than one bogie 106, a connection (e.g., physical and/or electrical) may couple each bogie 106 so as to act as a single unit to move the first and second set of switch wheels 196A-196B, 196C-196D to the same position on each bogie. With more than one bogie, the first and second set of switch wheels 196A-196B, 196C-196D may be moved to the first or second position 197A, 197B via the above-mentioned switching mechanisms or by any other mechanism.
In some embodiments, the rapid transit system 100 may also include position barcodes 193 located, for example, near the first and second topsides at an upper left track. Other locations for the barcodes may be envisioned, such as on the bottom right track. Position barcodes may be used to determine exact location on the guideway 102. The length may be determined by track speed. Alternatively, or in conjunction with the position barcodes 193, the guideway may include markings or wireless transmitters for the purpose of locating vehicles on the guideway. Position barcodes 193 allow the vehicle to broadcast its position over radio and to a server/controller.
Sensors may be used in place of barcodes to communicate with a server and to control when the second axle 186B is raised or lowered. These sensors may include, but are not limited to, radio, radar, ultrasonic, infrared (beacons and sensors), lidar, and GPS. In some embodiments, the guideway 102 may include wireless data transmitters and receivers to allow vehicles 104A-104C to communicate with each other or a centralized control system, and to provide Internet access to passengers.
With the first set and second set of guide wheels 190A-190B, 198A-198B inside the tracks 110A-110D, 128A-128D, it allows the switch rails to be outside of the one or more neutral guide rails, allowing the first and second set of switch wheels 196A-196B, 196C-196D to be engaged continuously with the switch rails 150A, 150B during a switch. The rapid transit system allows the vehicle to switch between the first and second guideways 108A, 108B without changing position. The rapid transit system 100 can also greatly reduce the number of times the switch needs to change position, depending on the design of the track. This also allows for track designs where the vehicle is totally constrained into the track, which prevents derailments and allows the track to be operated upside down or sideways as discussed above.
The rapid transit system 100 may comprise a safety system. The safety system may have physical fail safes, such as a locking rail that prevents the second axle 186B position from being changed during a switch. In some embodiments, the second axle 186B that is not completely in the active position 199C will be pushed into the neutral position 199A before a switch. In some embodiments, the second axle 186B may be pushed into the neutral position 199A before an on-to switch. In some embodiments, the second axle 186B may be pushed into the active position 199C before a merge that requires it to be in the active position. Alternatively, in some embodiments, the rapid transit system 100 may comprise electrical interlocks, which prevents a switch if a vehicle is already in the switch on the other track. The electrical interlocks may also activate brakes if guideway is merging and there is a vehicle on the other guideway.
The rapid transit system 100 may comprise a terminal or intermediate stations, where passengers can embark or disembark, and cargo can be loaded or unloaded either manual or automatically. Maintenance may also be performed at the terminal or intermediate stations. In one embodiment, terminal or intermediate stations may be designed deliberately to collect vehicles with failed bogies (e.g., switching mechanisms) by including an active and neutral switch into the station.
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It will be understood that while various embodiments have been disclosed herein, other embodiments are contemplated. Further, systems and/or methods according to certain embodiments of the present disclosure may include, incorporate, or otherwise comprise properties or features described in other embodiments. Consequently, various features of certain embodiments can be compatible with, combined with, included in, and/or incorporated into other embodiments of the present disclosure. Therefore, disclosure of certain features or components relative to a specific embodiment of the present disclosure should not be construed as limiting the application or inclusion of said features or components to the specific embodiment unless stated. As such, other embodiments can also include said features, components, members, elements, parts, and/or portions without necessarily departing from the scope of the present disclosure.
The embodiments described herein are examples of the present disclosure. Accordingly, unless a feature or component is described as requiring another feature or component in combination therewith, any feature herein may be combined with any other feature of a same or different embodiment disclosed herein. Although only a few of the example embodiments have been described in detail herein, those skilled in the art will appreciate that modifications are possible without materially departing from the present disclosure described herein. Accordingly, all modifications may be included within the scope of this invention.
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