US20170241090A1 - Retractable speed barrier - Google Patents
Retractable speed barrier Download PDFInfo
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- US20170241090A1 US20170241090A1 US15/591,265 US201715591265A US2017241090A1 US 20170241090 A1 US20170241090 A1 US 20170241090A1 US 201715591265 A US201715591265 A US 201715591265A US 2017241090 A1 US2017241090 A1 US 2017241090A1
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- Prior art keywords
- speed
- winged
- assembly
- longitudinal
- speed barrier
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/529—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users specially adapted for signalling by sound or vibrations, e.g. rumble strips; specially adapted for enforcing reduced speed, e.g. speed bumps
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/30—Arrangements interacting with transmitters or receivers otherwise than by visible means, e.g. using radar reflectors or radio transmitters
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
Definitions
- FIG. 3B shows a cross-sectional distal end view of the retractable speed barrier system in a deployed position in accordance with one or more embodiments of the present invention.
- FIG. 6 shows an exploded view of a lateral pivoting assembly and a hollow frame assembly of a retractable speed barrier system in accordance with one or more embodiments of the present invention.
- a retractable speed barrier system uses a lateral pivoting scheme that includes a plurality of trapezoidal hinges that pivot a winged speed barrier assembly between a retracted position and a deployed position in a lateral manner that is perpendicular to the flow of traffic.
- the lateral pivoting scheme allows for faster deployment and retraction of the winged speed barrier assembly over conventional lifting schemes.
- the lateral pivoting motion requires substantially less force than conventional lifting schemes and the winged speed barrier assembly may be deployed or retracted in less than one second.
- the retractable speed barrier system requires substantially fewer parts, is less complex, and is more robust that conventional solutions. As such, the retractable speed barrier system is more cost effective, easier to install, easier to maintain, and simply works better than conventional solutions.
- the bump board 310 laterally pivots on a plurality of trapezoidal hinges 510 , in a direction perpendicular to the flow of traffic, to a final deployed position where the plurality of trapezoidal hinges 510 are vertically oriented in the deployed position and the winged speed barrier assembly comes to rest against the first distal end plate 350 and the first distal end sidewall member 420 of the hollow frame assembly.
- the linear actuator 610 can be reset to retract the winged speed barrier assembly and restore the retractable speed barrier system 200 to the retracted, or inactive, position as shown in FIG. 2A .
- the hollow frame assembly may be partially or wholly assembled in advance offsite and disposed in a channel cut in a street or roadway ( 110 of FIG. 1 ) during installation.
- no special tools are required and any tool capable of cutting a channel in asphalt, concrete, or cement such as, for example, a concrete saw may be used.
- the winged speed barrier assembly and the lateral pivoting assembly may be partially assembled in advance and connected to the hollow frame assembly after disposing the hollow frame assembly in the channel cut in the street or roadway ( 110 of FIG. 1 ).
- the first angle member 520 may be secured to the plurality of sidewall support braces 460 by a plurality of double ended threaded studs 482 , a plurality of washers 484 , and a plurality of nuts 486 .
- an installer may securely attach a plurality of rebar pins or other structural elements (not shown) to the outer walls of the hollow frame assembly (not shown), dispose the hollow frame assembly with the plurality of rebar pins in the channel, and then pour asphalt, concrete, cement, or other binding material (not shown) to fill in the area between the sidewalls, or outer edges, of the channel cut into the street or roadway and the outer sidewalls of the hollow frame assembly.
- the structural integrity of the hollow frame assembly is strengthened when the retractable speed barrier system 200 is deployed. For example, when the system 200 is deployed and a vehicle ( 100 of FIG.
- FIG. 4 shows a perspective view of a trapezoidal hinge 510 in accordance with one or more embodiments of the present invention.
- Trapezoidal hinge 510 may include a trapezoid-shaped support plate 512 having a first base with a first length, L 1 , and a second base with a second length, L 2 , longer than the first length, L 1 .
- Trapezoidal hinge 510 may include a first hollow cylindrical barrel having the first length and configured to receive a first removable hinge pin ( 530 of FIG. 3 ) that is attached to a distal end of first base of the trapezoid-shaped support plate 512 and a second hollow cylindrical barrel having the second length and configured to receive a second removable hinge pin ( 540 of FIG.
- the first and the second strike plates 320 may be composed of carbon steel having a thickness of approximately 5/16′′.
- the first and the second strike plates 320 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention.
- the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention.
- the second distal slide plate 360 may be a substantially rectangular member composed of steel having a thickness of at least 1 ⁇ 2′′.
- the second distal slide plate 360 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention.
- the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention.
- the second distal slide plate 360 may have dimensions of approximately 6′′ in width by approximately 10′′ in length.
- the dimensions of the second distal slide plate 360 may vary based on an application or design in accordance with one or more embodiments of the present invention.
- FIG. 6 shows an exploded view of a lateral pivoting assembly 500 and a hollow frame assembly 400 of a retractable speed barrier system 200 in accordance with one or more embodiments of the present invention.
- the lateral pivoting assembly 500 may include a plurality of trapezoidal hinges 510 , a first angle member 520 , a second angle member 520 , a plurality of first removable hinge pins 530 , a plurality of second removable hinge pins 540 , a plurality of washers 542 , and a plurality of hinge pin nuts 544 .
- the number of trapezoidal hinges 510 used may vary based on an application or design.
- the first and the second longitudinal sidewall members 410 may be substantially rectangular members composed of steel having a thickness of approximately 5/16′′.
- first and the second longitudinal sidewall members 410 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention.
- shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention.
- first and the second longitudinal sidewall members 410 may have dimensions of approximately 6′′ in width by approximately 8′ 6′′ in length, where the length may vary based on an application or design.
- the plurality of second distal end sidewall members 430 and control box 440 may be composed of steel having a thickness of approximately 5/16′′.
- the plurality of second distal end sidewall members 430 and control box 440 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention.
- the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention.
- the plurality of second distal end sidewall members 430 may have dimensions of approximately 41 ⁇ 2′′ in width by approximately 6′′ in length and the control box 440 may have dimensions of approximately 6′′ in width by approximately 6′′ in height by approximately 17′′ in length.
- the first second distal end sidewall member 430 may attach to the first longitudinal sidewall member 410 and the control box 440 and the second second distal end sidewall member 430 may be attached to the control box 440 and the second longitudinal sidewall member 410 at the second distal end.
- FIG. 7 shows an exploded view of a winged speed barrier assembly 300 , lateral pivoting assembly 500 , and hollow frame assembly 400 of a retractable speed barrier system 200 in accordance with one or more embodiments of the present invention.
- the first and the second mounting rods ( 330 of FIG. 5 ) may be welded to the bottom side edges of the bump board ( 310 of FIG. 5 ).
- the first hollow cylindrical barrel ( 514 of Figure of FIG. 4 ) of each trapezoidal hinge ( 510 of FIG. 6 ) may be secured in place between the first and the second mounting rods ( 330 of FIG. 5 ) by a hinge pin ( 530 of FIG. 3 ), washers ( 542 of FIG. 3 ), and hinge pin nuts ( 544 of FIG. 3 ).
- the contact support members ( 326 of FIG. 3 ) may be welded to their respective sides of the bump board ( 310 of FIG. 5 ) followed by the support plates ( 322 of FIG. 3 ) which may be welded to the contact points on the side of the bump board ( 310 of FIG. 5 ), the contact points of the contact support members ( 326 of FIG. 3 ), and then to the top surfaces of the force-limiting resting rods ( 340 of FIG. 5 ).
- the cylindrical support members ( 324 of FIG. 3 ) are then welded to their respective support plates ( 322 of FIG. 3 ).
- each trapezoidal hinge ( 510 of FIG. 6 ) may be secured to the first and the second angle members ( 520 of FIG. 3 ) by hinge pins ( 540 of FIG. 3 ), washers ( 542 of FIG. 3 ), and hinge pin nuts ( 544 of FIG. 3 ).
- hinge pins 540 of FIG. 3
- washers 542 of FIG. 3
- hinge pin nuts 544 of FIG. 3
- the hollow frame assembly 400 may be partially or wholly assembled in advance and disposed in a channel (not shown) cut in a street or roadway ( 110 of FIG. 1 ).
- the hollow frame assembly 400 may be secured to the bottom and sidewalls of the channel cut into the street or roadway ( 110 of FIG. 1 ) using any mechanism suitable for doing so.
- first and the second angle members ( 520 of FIG. 3 ) and components assembled thereto may be lowered onto the sidewall support braces ( 460 of FIG. 6 ) of the hollow frame assembly 400 and secured in place on the top side of double ended threaded studs ( 482 of FIG. 3 ) by washers ( 484 of FIG. 3 ) and nuts ( 486 of FIG. 3 ).
- asphalt, concrete, cement, or other binding material may be used to flood the bottom of the hollow frame assembly 400 , filling the hollow frame assembly 400 to a level just below the moving parts of the lateral pivoting assembly 500 , and further securing the hollow frame assembly 400 to the channel cut in the street or roadway ( 110 of FIG. 1 ).
- a linear actuator ( 610 of FIG. 2 ) may be disposed in the control box ( 440 of FIG. 6 ), connected to the bump board ( 310 of FIG. 2 ), and connected to a power source.
- FIG. 8A shows a perspective view of a retractable speed barrier system 200 in a retracted position in accordance with one or more embodiments of the present invention.
- FIG. 8B shows a perspective view of a retractable speed barrier system 200 in a deployed position in accordance with one or more embodiments of the present invention.
- FIG. 8C shows a cross-sectional perspective view of a retractable speed barrier system 200 in a deployed position in accordance with one or more embodiments of the present invention.
- a retractable speed barrier system can be quickly and easily installed in an existing road and repaired in situ.
Abstract
A retractable speed barrier system includes a winged speed barrier assembly, a lateral pivoting assembly that includes a plurality of trapezoidal hinges, a hollow frame assembly, and an electrically activated linear actuator. The winged speed barrier assembly is attached to the hollow frame assembly by the lateral pivoting assembly. The linear actuator causes the winged speed barrier assembly to laterally pivot on the trapezoidal hinges in a direction perpendicular to the flow of traffic between a retracted positon and a deployed position.
Description
- This application claims the benefit of, or priority to, U.S. Provisional Patent Application Ser. No. 62/219,675, filed on Sep. 17, 2015, which is hereby incorporated by reference in its entirety.
- Modern automotive safety systems have dramatically increased the survivability of automotive accidents for occupants of a vehicle. However, the effectiveness of such systems decreases with increasing vehicular speed. While the annual number of fatalities on United States roadways continues to trend downward, speeding remains a contributing factor in approximately one third of all fatal accidents year-over-year. As such, vehicular speed remains the primary contributing factor to preventable fatalities. Despite the dangers presented by vehicular speed to drivers and others who share the roadway, efforts to change driver behaviors have proven ineffective. The driving public remains largely indifferent to speeding despite the risk to their safety and that of others. As such, many jurisdictions have imposed civil and/or criminal sanctions in an effort to reduce speeding. However, the police are understaffed and cannot adequately enforce speed restrictions.
- While speeding presents a serious danger to drivers and others who share the roadway, speeding is substantially more dangerous to pedestrians, including children, on neighborhood streets, in school zones, and in parking lots. The National Highway Traffic Safety Administration has determined that a pedestrian hit by a vehicle going 20 MPH has a 90% chance of surviving, however, a pedestrian hit by a vehicle going 30 MPH has a 50% chance of surviving, and a pedestrian hit by a vehicle going 40 MPH has only a 10% chance of surviving. The statistics suggest that even modest speeding in these low-speed designated zones represents a substantially increased danger to the lives of pedestrians. As such, it is critically important to control vehicular speed on streets and roadways where pedestrians are present.
- According to one aspect of one or more embodiments of the present invention, a retractable speed barrier system includes a winged speed barrier assembly, a lateral pivoting assembly that includes a plurality of trapezoidal hinges, a hollow frame assembly, and an electrically activated linear actuator. The winged speed barrier assembly is attached to the hollow frame assembly by the lateral pivoting assembly. The linear actuator causes the winged speed barrier assembly to laterally pivot on the trapezoidal hinges in a direction perpendicular to the flow of traffic between a retracted positon and a deployed position.
- Other aspects of the present invention will be apparent from the following description and claims.
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FIG. 1A shows a perspective view of an oncoming vehicle approaching a retractable speed barrier system in a retracted position in accordance with one or more embodiments of the present invention. -
FIG. 1B shows a perspective view of the oncoming vehicle approaching the retractable speed barrier system in a deployed position in accordance with one or more embodiments of the present invention. -
FIG. 2A shows a cross-sectional longitudinal view of a retractable speed barrier system in a retracted position in accordance with one or more embodiments of the present invention. -
FIG. 2B shows a cross-sectional longitudinal view of the retractable speed barrier system in a deployed position in accordance with one or more embodiments of the present invention. -
FIG. 3A shows a cross-sectional distal end view of a retractable speed barrier system in a retracted position in accordance with one or more embodiments of the present invention. -
FIG. 3B shows a cross-sectional distal end view of the retractable speed barrier system in a deployed position in accordance with one or more embodiments of the present invention. -
FIG. 4 shows a perspective view of a trapezoidal hinge in accordance with one or more embodiments of the present invention. -
FIG. 5 shows an exploded view of a winged speed barrier assembly of a retractable speed barrier system in accordance with one or more embodiments of the present invention. -
FIG. 6 shows an exploded view of a lateral pivoting assembly and a hollow frame assembly of a retractable speed barrier system in accordance with one or more embodiments of the present invention. -
FIG. 7 shows an exploded view of a winged speed barrier assembly, lateral pivoting assembly, and hollow frame assembly of a retractable speed barrier system in accordance with one or more embodiments of the present invention. -
FIG. 8A shows a perspective view of a retractable speed barrier system in a retracted position in accordance with one or more embodiments of the present invention. -
FIG. 8B shows a perspective view of the retractable speed barrier system in a deployed position in accordance with one or more embodiments of the present invention. -
FIG. 8C shows a cross-sectional perspective view of the retractable speed barrier system in a deployed position in accordance with one or more embodiments of the present invention. - One or more embodiments of the present invention are described in detail with reference to the accompanying figures. For consistency, like elements in the various figures are denoted by like reference numerals. In the following detailed description of the present invention, specific details are set forth in order to provide a detailed understanding of the present invention. In other instances, well-known features to one of ordinary skill in the art are not described to avoid obscuring the description of the present invention.
- As discussed above, speeding on neighborhood streets, in school zones, and in parking lots presents a dangerous situation when pedestrians are present. Speeding is particularly problematic in neighborhoods, where pedestrians, including children, are often found, because neighborhood streets are increasingly being used by drivers to cut through traffic. Because of the substantial risks associated with even modest levels of speeding and the inability to change or regulate driver behaviors, physical control of vehicular speeds is needed.
- Conventional speed bumps physically control vehicular speeds by providing some manner of vertical deflection to oncoming vehicles. Conventional speed bumps typically provide less than 1′, and usually less than 6″, of vertical deflection from the surface of the street or roadway. If an oncoming vehicle attempts to traverse a conventional speed bump at an excessive speed, the impact with the speed bump is jarring and potentially damages the undercarriage of the vehicle, thus encouraging drivers to self-regulate their speed. Conventional speed bumps are typically composed of asphalt, concrete, metal, rubber, plastic, or combinations thereof and are typically fixed in place and cannot be easily removed once installed.
- While conventional speed bumps are effective at physically controlling vehicular speeds, they also present a number of issues that contraindicate their use. Once installed, conventional speed bumps are always present and substantially reduce the speed at which a street or roadway may be traversed. This is particularly problematic when, for example, a school is located on a major thoroughfare. While it is desirable to physically control vehicular speeds during posted school zone hours, it is undesirable to impose reduced speeds at other times because doing so impedes the flow of traffic. In addition, the use of conventional speed bumps impedes emergency response vehicles such as police, fire, and emergency medical services vehicles from responding as fast as they otherwise could in an emergency situation.
- Conventional retractable speed bumps seek to address some of the issues that prevent the use of conventional speed bumps by retractably deploying a speed bump only under certain conditions. However, conventional retractable speed bumps suffer from a number of issues that contraindicate their use as well, as is evidenced by their lack of adoption despite recognition of their utility. Conventional retractable speed bumps typically use a vertical lifting scheme that requires hydraulic, pneumatic, or other pressure system to vertically lift the speed bump from the retracted position to the deployed position. The vertical lifting scheme requires substantial force to deploy the speed bump, is slow to deploy, and requires a hydraulic, pneumatic, or other pressure system that has a large footprint that precludes their use in, for example, a neighborhood street that is space constrained or otherwise unavailable for aesthetic reasons. In addition, conventional retractable speed bumps typically require a large number of precision engineered components that are expensive, difficult to manufacture, and are used as part of a complex mechanical design. As such, conventional retractable speed bumps are prone to failure and are difficult to maintain.
- Accordingly, in one or more embodiments of the present invention, a retractable speed barrier system is designed to be placed into the street or roadway and secured in place such that it becomes an integral structure embedded in the street or roadway substrate, thereby providing an immovable and structurally sound system that mirrors the functionality of a conventional speed bump when deployed. Unlike conventional speed bumps, the retractable speed barrier system is designed to be virtually undetectable to drivers of vehicles who obey the speed limit as the system remains in the retracted, or inactive, position. In one or more embodiments of the present invention, a retractable speed barrier system uses a lateral pivoting scheme that includes a plurality of trapezoidal hinges that pivot a winged speed barrier assembly between a retracted position and a deployed position in a lateral manner that is perpendicular to the flow of traffic. The lateral pivoting scheme allows for faster deployment and retraction of the winged speed barrier assembly over conventional lifting schemes. The lateral pivoting motion requires substantially less force than conventional lifting schemes and the winged speed barrier assembly may be deployed or retracted in less than one second. In addition, the retractable speed barrier system requires substantially fewer parts, is less complex, and is more robust that conventional solutions. As such, the retractable speed barrier system is more cost effective, easier to install, easier to maintain, and simply works better than conventional solutions.
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FIG. 1A shows a perspective view of anoncoming vehicle 100 approaching a retractablespeed barrier system 200 in a retracted position in accordance with one or more embodiments of the present invention. The retractablespeed barrier system 200 is disposed within a street orroadway 110 and remains in a retracted, or inactive, position such that the top surface of thesystem 200 is substantially flush, or level, with the grade of the street orroadway 110 until activated for deployment. When in the retracted position, the retractablespeed barrier system 200 bridges the street on either side of thesystem 200, provides substantially no vertical deflection, and has a noise signature similar to that of a rumble strip. The retractablespeed barrier system 200 may be deployed when certain criterion or criteria for activation, or deployment, are met. The criterion or criteria for activation may vary based on a type, design, and/or configuration of anactivation system 700 in accordance with one or more embodiments of the present invention. -
FIG. 1B shows a perspective view of anoncoming vehicle 100 approaching the retractablespeed barrier system 200 in a deployed position in accordance with one or more embodiments of the present invention. In certain embodiments,activation system 700 may include a RAdio Detection And Ranging (“RADAR”) detection system (not independently illustrated) configured to detect a speed of theoncoming vehicle 100 at a predetermined distance from thesystem 200. The predetermined distance may vary based on an application or design. If the oncomingvehicle 100 exceeds a predetermined speed at the predetermined distance, theretractable barrier system 200 may deploy. The predetermined speed may also vary based on an application or design. Once thevehicle 100 has passed, theretractable barrier system 200 may retract, such that thesystem 200 is returned to the retracted, or inactive, position. If the oncomingvehicle 100 approaches at a speed less than the predetermined speed at the predetermined distance, theretractable barrier system 200 remains in the retracted, or inactive, position and thevehicle 100 may traverse thesystem 200 in the retracted position. In other embodiments, theactivation system 700 may include a Light Detection And Ranging (“LiDAR”) detection system (not independently illustrated) that uses LiDAR to detect the speed of theoncoming vehicle 100. In still other embodiments, theactivation system 700 may include a speed detection camera system (not independently illustrated) that uses one or more charge-coupled device (“CCD”) cameras to detect the speed of theoncoming vehicle 100. In still other embodiments, theactivation system 700 may include a switch (not independently illustrated) configured to deploy thesystem 200 in a first switch state and to retract in a second switch state, similar to that of an on-off switch. In still other embodiments, theactivation system 700 may include a timer system (not independently illustrated) configured to deploy thesystem 200 at a first predetermined time and retract at a second predetermined time. One of ordinary skill in the art will recognize that any other activation and/or detection systems capable of electrically triggering the deployment and retraction of the retractablespeed barrier system 200 may be used in accordance with one or more embodiments of the present invention. -
FIG. 2A shows a cross-sectional longitudinal view of a retractablespeed barrier system 200 in a retracted position in accordance with one or more embodiments of the present invention. Retractablespeed barrier system 200 includes a winged speed barrier assembly, a lateral pivoting assembly, and a hollow frame assembly discussed in more detail herein. In the retracted, or inactive, position, retractablespeed barrier system 200 includes abump board 310, a plurality of mountingrods 330 attached to a bottom side of thebump board 310, and a plurality of force-limitingresting rods 340 disposed perpendicular to, distributed along a longitudinal length of, and attached to, the first and the second mountingrods 330. In this retracted position, the plurality of force-limitingresting rods 340 come to rest on the first and thesecond angle members 520 of the lateral pivoting assembly, which are attached to the hollow frame assembly that is itself secured to the street orroadway 110. When in this retracted position, if a vehicle (100 ofFIG. 1A ) traverses the retractablespeed barrier system 200, the weight and force exerted by the vehicle is distributed from thebump board 310, mountingrods 330, and force-limitingresting rods 340 to the first and thesecond angle members 520 and to the hollow frame assembly that is secured to the street orroadway 110.Activation system 700 may include a detection system 710 (not independently illustrated) configured to detect a speed of an oncoming vehicle (100 ofFIG. 1 ) at a predetermined distance, anoptional speed display 720 configured to display a detected speed of the oncoming vehicle (100 ofFIG. 1 ) at the predetermined distance, and an optionalalert display 730 configured to display a predetermined message advising drivers of the state of thesystem 200.Activation system 700 may trigger alinear actuator 610 used to laterally pivot the winged speed barrier assembly on a plurality of trapezoidal hinges 510 in a direction perpendicular to the flow of traffic between a retracted position and a deployed position. One of ordinary skill in the art will recognize that one or more signals fromactivation system 700 may be used to trigger thelinear actuator 610 in accordance with one or more embodiments of the present invention. - Continuing in
FIG. 2B , a cross-sectional longitudinal view of the retractablespeed barrier system 200 in a deployed position is shown in accordance with one or more embodiments of the present invention. In the example depicted,activation system 700 determines, by way ofdetection system 710, that the oncoming vehicle (100 ofFIG. 1B ) is approaching the retractablespeed barrier system 200 at a speed of 38 MPH that exceeds a hypothetical predetermined speed at a predetermined distance in this instance. Theactivation system 700 displays the oncoming vehicle's (100 ofFIG. 1 ) speed on theoptional speed display 720, deploys the retractablespeed barrier system 200, and provides the driver with an alert on the optionalalert display 730 advising that thesystem 200 is deployed.Activation system 700 deploys the retractablespeed barrier system 200 by sending one or more electrical signals tolinear actuator 610.Linear actuator 610 includes anactuating rod 615 coupled to acontact pad 620 that is itself coupled to a distal end of thebump board 310. When thelinear actuator 610 is actuated, actuatingrod 615 exerts force on thebump board 310 and causes thebump board 310 to laterally pivot from the retracted, or inactive, position to the deployed position. Thebump board 310 laterally pivots on a plurality of trapezoidal hinges 510, in a direction perpendicular to the flow of traffic, to a final deployed position where the plurality of trapezoidal hinges 510 are vertically oriented in the deployed position and the winged speed barrier assembly comes to rest against the firstdistal end plate 350 and the first distalend sidewall member 420 of the hollow frame assembly. Thelinear actuator 610 can be reset to retract the winged speed barrier assembly and restore the retractablespeed barrier system 200 to the retracted, or inactive, position as shown inFIG. 2A . -
FIG. 3A shows a cross-sectional distal end view of a retractablespeed barrier system 200 in a retracted position in accordance with one or more embodiments of the present invention. The winged speed barrier assembly may include abump board 310, a first mountingrod 330 attached to a first longitudinal edge of a bottom side of thebump board 310, asecond mounting rod 330 attached to a second longitudinal edge of the bottom side of thebump board 310, afirst strike plate 320 attached to a first longitudinal sidewall of thebump board 310, asecond strike plate 320 attached to a second longitudinal sidewall of thebump board 310, a first distal slide plate (350 ofFIG. 2 ) attached to a first distal end sidewall of thebump board 310, a second distal slide plate (360 ofFIG. 2 ) attached to a second distal end sidewall of thebump board 310, and a plurality of force-limitingresting rods 340 disposed perpendicular to, distributed along a longitudinal length of, and attached to, the first mountingrod 330 and the second mountingrod 330. The first and thesecond strike plates 320 may each include asupport plate 322, acontact support member 326 attached to a first side of thesupport plate 322, and acylindrical support member 324 attached to a second side of thesupport plate 322. Eachcontact support member 326 may be attached to a respective longitudinal sidewall of thebump board 310 and a top portion of eachsupport plate 322 may be attached to a respective longitudinal sidewall of thebump board 310 and a bottom portion of eachsupport plate 322 may be attached to the top surfaces of the plurality of force-limitingresting rods 340. - The lateral pivoting assembly may include a plurality of trapezoidal hinges 510, a
first angle member 520, asecond angle member 520, a plurality of first removable hinge pins 530, a plurality of second removable hinge pins 540, a plurality ofwashers 542, and a plurality of hinge pin nuts 544. The hollow frame assembly may include a firstlongitudinal sidewall member 410, a secondlongitudinal sidewall member 410, a first distal end sidewall member (420 ofFIG. 2 ) connecting the first and the secondlongitudinal sidewall members 410 at the first distal end, a plurality of second distal end sidewall members (not shown) and a control box (440 ofFIG. 2 ) connecting the first and the secondlongitudinal sidewall members 410 at the second distal end, a plurality of sidewall support braces 460 disposed within, perpendicular to, distributed along a longitudinal length of, and attached to, an interior face of the first and the secondlongitudinal sidewall members 410, a firstlongitudinal slide plate 450 attached to a longitudinal edge of the firstlongitudinal sidewall member 410 by a first plurality ofhinge brackets 452, a secondlongitudinal slide plate 450 attached to a longitudinal edge of the secondlongitudinal sidewall member 410 by a second plurality ofhinge brackets 452, a first plurality ofsprings 470 connecting the firstlongitudinal slide plate 450 to the firstlongitudinal sidewall member 410, a second plurality ofsprings 470 connecting the secondlongitudinal slide plate 450 to the firstlongitudinal sidewall member 410, and acenter support brace 490 that runs a longitudinal length of the underside of the hollow frame assembly. - The hollow frame assembly may be partially or wholly assembled in advance offsite and disposed in a channel cut in a street or roadway (110 of
FIG. 1 ) during installation. Advantageously, no special tools are required and any tool capable of cutting a channel in asphalt, concrete, or cement such as, for example, a concrete saw may be used. The winged speed barrier assembly and the lateral pivoting assembly may be partially assembled in advance and connected to the hollow frame assembly after disposing the hollow frame assembly in the channel cut in the street or roadway (110 ofFIG. 1 ). For example, thefirst angle member 520 may be secured to the plurality of sidewall support braces 460 by a plurality of double ended threadedstuds 482, a plurality ofwashers 484, and a plurality of nuts 486. Similarly, thesecond angle member 520 may be secured to the plurality of sidewall support braces 460 by a plurality of double ended threadedstuds 482, a plurality ofwashers 484, and a plurality of nuts 486. A plurality of trapezoidal hinges 510 may be secured to thefirst angle member 520 and thesecond angle member 520 by the second plurality of removable hinge pins 540, the plurality ofwashers 542, and the plurality of hinge pin nuts 544. - In certain embodiments, the channel cut in the street or roadway (110 of
FIG. 1 ) may be at least twice the width of the hollow frame assembly. The hollow frame assembly may then be secured to the bottom and sidewalls, or interior faces, of the channel cut into the street or roadway (110 ofFIG. 1 ) using any mechanism suitable for doing so. One of ordinary skill in the art will recognize that the size of the channel may scale with a size of a retractablespeed barrier system 200 or otherwise vary in accordance with one or more embodiments of the present invention. In certain embodiments, an installer may securely attach a plurality of rebar pins or other structural elements (not shown) to the outer walls of the hollow frame assembly (not shown), dispose the hollow frame assembly with the plurality of rebar pins in the channel, and then pour asphalt, concrete, cement, or other binding material (not shown) to fill in the area between the sidewalls, or outer edges, of the channel cut into the street or roadway and the outer sidewalls of the hollow frame assembly. In doing so, the structural integrity of the hollow frame assembly is strengthened when the retractablespeed barrier system 200 is deployed. For example, when thesystem 200 is deployed and a vehicle (100 ofFIG. 1 ) tire strikes the deployed winged bump board assembly, the force-limitingresting rods 340 may contact the inner walls of the hollow frame assembly and transfer energy laterally across the entire winged bump board assembly, ultimately down to, and through, the force-limitingresting rods 340 which interact with the inner walls of the hollow frame assembly that are themselves structurally reinforced by the asphalt, concrete, cement, or other binding material (not shown) that maintains the structural integrity of the hollow frame assembly. In other embodiments, the hollow frame assembly may be secured in the channel by epoxy anchors (not shown). One of ordinary skill in the art will recognize that any other mechanism for securing the hollow frame assembly to the channel, or combinations of mechanisms thereof, may be used in accordance with one or more embodiments of the present invention. Once thesystem 200 is installed, asphalt, concrete, cement, or other binding material (not shown) may be used to flood the bottom of the hollow frame assembly, filling the hollow frame assembly to a level just below the moving parts of the lateral pivoting assembly, and further securing the hollow frame assembly, andsystem 200 in general, to the channel cut into the street or roadway (110 ofFIG. 1 ). - Continuing in
FIG. 3B , a cross-sectional distal end view of the retractablespeed barrier system 200 in a deployed position is shown in accordance with one or more embodiments of the present invention. When the activation system (700 ofFIGS. 1 and 2 ) triggers the retractablespeed barrier system 200, a linear actuator (610 ofFIG. 2 ) actuates an actuating rod (615 ofFIG. 2 ) that is coupled to a contact pad (620 ofFIG. 2 ) that is itself coupled to a distal end of thebump board 310. When the linear actuator (610 ofFIG. 2 ) is actuated, the actuating rod (615 ofFIG. 2 ) exerts force on thebump board 310 and causes the winged speed barrier assembly, includingbump board 310, to laterally pivot from the retracted, or inactive, position to the deployed position. The entire winged speed barrier assembly, including thebump board 310, laterally pivots on the plurality of trapezoidal hinges 510 in a direction perpendicular to the flow of traffic until the trapezoidal hinges 510 are vertical and the first distal end of the winged speed barrier assembly comes to rest against the first distal end plate (350 ofFIG. 2 ) and the first distal end sidewall member (420 ofFIG. 2 ) of the hollow frame assembly as shown inFIG. 2B . As the winged speed barrier assembly laterally pivots from the retracted position to the deployed position, the winged speed barrier assembly rises in a lateral manner and the first and thesecond strike plates 320 cause the first and the secondlongitudinal slide plates 450 to open underspring 470 tension. In the deployed position, the first and the secondlongitudinal slide plates 450 and the winged speed barrier assembly form a substantially trapezoidal-shaped bump above the surface of the street or roadway (110 ofFIG. 1 ), constituting a vertical deflection. In certain embodiments, the vertical deflection may be approximately 3″. One of ordinary skill in the art will recognize that the amount of vertical deflection may vary based on an application or design in accordance with one or more embodiments of the present invention. When an oncoming vehicle (100 ofFIG. 1 ) traverses the deployed retractablespeed barrier system 200, the weight and force exerted by the vehicle is distributed from the winged speed barrierassembly bump board 310 to the mountingrods 330 and the vertically oriented plurality of trapezoidal hinges 510 to the first and thesecond angle members 520 and to the hollow frame assembly that is secured to the street or roadway (110 ofFIG. 1 ). In addition, the first and the secondlongitudinal slide plates 450 may provide access to the retractablespeed barrier system 200 for service and/or maintenance. -
FIG. 4 shows a perspective view of atrapezoidal hinge 510 in accordance with one or more embodiments of the present invention.Trapezoidal hinge 510 may include a trapezoid-shapedsupport plate 512 having a first base with a first length, L1, and a second base with a second length, L2, longer than the first length, L1.Trapezoidal hinge 510 may include a first hollow cylindrical barrel having the first length and configured to receive a first removable hinge pin (530 ofFIG. 3 ) that is attached to a distal end of first base of the trapezoid-shapedsupport plate 512 and a second hollow cylindrical barrel having the second length and configured to receive a second removable hinge pin (540 ofFIG. 3 ) that is attached to a distal end of the second base of the trapezoid-shapedsupport plate 512. In certain embodiments, trapezoid-shapedsupport plate 512 may have a first base having a length, L1, of approximately 4″ and a second base having a length, L2, of approximately 6″. One of ordinary skill in the art will recognize that the lengths of the first base and the second base may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments,trapezoidal hinge 510 may be composed of A36 flat steel. One of ordinary skill in the art will recognize thattrapezoidal hinge 510 may be composed of other metals or metal alloys, the selection of which may vary based on an application or design, in accordance with one or more embodiments of the present invention. -
FIG. 5 shows an exploded view of a wingedspeed barrier assembly 300 of a retractablespeed barrier system 200 in accordance with one or more embodiments of the present invention. As discussed above, wingedspeed barrier assembly 300 may include abump board 310, a first mountingrod 330 attached to a first longitudinal edge of a bottom side of thebump board 310, asecond mounting rod 330 attached to a second longitudinal edge of the bottom side of thebump board 310, afirst strike plate 320 attached to a first longitudinal sidewall of thebump board 310, asecond strike plate 320 attached to a second longitudinal sidewall of thebump board 310, a firstdistal slide plate 350 attached to a first distal end sidewall of thebump board 310, a seconddistal slide plate 360 attached to a second distal end sidewall of thebump board 310, and a plurality of force-limitingresting rods 340 disposed perpendicular to, distributed along a longitudinal length of, and attached to, the first mountingrod 330 and the second mountingrod 330. The first and thesecond strike plates 320 may each include asupport plate 322, acontact support member 326 attached to a first side of thesupport plate 322, and acylindrical support member 324 attached to a second side of thesupport plate 322. Eachcontact support member 326 may be attached to a longitudinal sidewall of thebump board 310. In certain embodiments, the various components of the wingedspeed barrier assembly 300 may be attached by welded joints. One of ordinary skill in the art will recognize that any other suitable means of attachment may be used in accordance with one or more embodiments of the present invention. - In certain embodiments, the
bump board 310 may be a hollow box member, substantially rectangular in shape, and composed of carbon steel having a wall thickness of approximately 5/16″. One of ordinary skill in the art will recognize thatbump board 310 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one of ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention to achieve desired strength and weight characteristics. In certain embodiments, thebump board 310 may have dimensions of approximately 6″ in width by approximately 2″ in height with a length that varies based on an application or design. In typical applications, the length may be, for example, at least 8′, sufficient to cover a substantial driving portion of a given lane of a street or roadway (110 ofFIG. 1 ). One of ordinary skill in the art will recognize that the dimensions of thebump board 310 may vary based on an application or design in accordance with one or more embodiments of the present invention. - In certain embodiments, the first and the second mounting
rods 330 may be solid members, substantially square cuboid in shape, and composed of steel. One of ordinary skill in the art will recognize that the first and the second mountingrods 330 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape and composition may vary based on an application or design in accordance with one or more embodiments of the present invention. The first and the second mountingrods 330 may include a plurality ofholes 332 disposed in the longitudinal sidewalls of the first and the second mountingrods 330 to accommodate the first removable hinge pins (530 ofFIG. 3 ), that are drilled in between the locations of the plurality of force-limitingresting rods 340. In certain embodiments, the first and the second mountingrods 330 may have dimensions of approximately 1″ in width by approximately 1″ in height with a length that varies based on an application or design, but typically similar to the length of thebump board 310 to which it is attached. For example, if the bump board is approximately 8′ in length, the first and the second mountingrods 330 may be approximately 8′ in length as well. One of ordinary skill in the art will recognize that the dimensions of the first and the second mountingrods 330 may vary based on an application or design in accordance with one or more embodiments of the present invention. - In certain embodiments, the plurality of force-limiting
resting rods 340 may be hollow box members, substantially rectangular in shape, and composed of steel having a wall thickness of approximately 5/16″. One of ordinary skill in the art will recognize that the plurality of force-limitingresting rods 340 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments, the plurality of force-limitingresting rods 340 may have dimensions of approximately 2″ in width by approximately ½″ in height by approximately 14″ in length. One of ordinary skill in the art will recognize that the dimensions of the force-limitingresting rods 340 may vary based on an application or design in accordance with one or more embodiments of the present invention. - In certain embodiments, the first and the
second strike plates 320 may be composed of carbon steel having a thickness of approximately 5/16″. One of ordinary skill in the art will recognize that the first and thesecond strike plates 320 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments, the first and thesecond strike plates 320 may have dimensions of approximately 2½″ in width by approximately ⅜″ in height with a length that varies based on an application or design, but typically similar to the length of thebump board 310 to which it is attached. For example, if the bump board is approximately 8′ in length, the first and the second mountingrods 330 may be approximately 8′ in length as well. One of ordinary skill in the art will recognize that the dimensions of the first and thesecond strike plates 320 may vary based on an application or design in accordance with one or more embodiments of the present invention. - In certain embodiments, the first
distal slide plate 350 may be a substantially rectangular member composed of steel having a thickness of approximately ⅜″. One of ordinary skill in the art will recognize that the firstdistal slide plate 350 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments, the firstdistal slide plate 350 may have dimensions of approximately 3″ in width by approximately 6″ in length, where the length may vary based on an application or design. For example, the firstdistal slide plate 350 may have a length sufficient to cover the gap between the edge of thebump board 310 and the edge of the hollow frame assembly. One of ordinary skill in the art will recognize that the dimensions of the firstdistal slide plate 350 may vary based on an application or design in accordance with one or more embodiments of the present invention. - In the retracted position, the first distal slide plate (350 of
FIG. 2A ) may ensure that the top surface of the retractable barrier system (200 ofFIG. 2A ) is substantially flush with the grade of the street or roadway (110 ofFIG. 1 ), prevents unwanted debris from entering the hollow frame assembly, and restricts pedestrians, especially children, from purposefully or inadvertently inserting anything into the cavity of the hollow frame assembly. Other such safeguards may be used in similar areas where an opening might be shown to exist, even if not specifically illustrated herein. In the deployed position, the first distal slide plate (350 ofFIG. 2B ) pivots on a hinge bracket (not independently illustrated) to an upright vertical orientation such that the deployed winged speed barrier assembly comes to rest against the firstdistal end plate 350 and the first distal end sidewall member (420 ofFIG. 2B ) of the hollow frame assembly. - In certain embodiments, the second
distal slide plate 360 may be a substantially rectangular member composed of steel having a thickness of at least ½″. One of ordinary skill in the art will recognize that the seconddistal slide plate 360 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments, the seconddistal slide plate 360 may have dimensions of approximately 6″ in width by approximately 10″ in length. One of ordinary skill in the art will recognize that the dimensions of the seconddistal slide plate 360 may vary based on an application or design in accordance with one or more embodiments of the present invention. - In the retracted position, the second distal slide plate (360 of
FIG. 2A ) ensures that the top surface of the retractable barrier system (200 ofFIG. 2A ) is substantially flush with the grade of the street, prevents unwanted debris from entering the hollow frame assembly, and restricts pedestrians, especially children, from purposefully or inadvertently inserting anything into the cavity of the hollow frame assembly including, for example, the control box (440 ofFIG. 2B ). In the deployed position, the second distal slide plate (360 ofFIG. 2B ) pivots on a hinge bracket (not independently illustrated) to accommodate the increase in height resulting from actuation of the linear actuator (610 ofFIG. 2B ). -
FIG. 6 shows an exploded view of alateral pivoting assembly 500 and ahollow frame assembly 400 of a retractablespeed barrier system 200 in accordance with one or more embodiments of the present invention. As discussed above, thelateral pivoting assembly 500 may include a plurality of trapezoidal hinges 510, afirst angle member 520, asecond angle member 520, a plurality of first removable hinge pins 530, a plurality of second removable hinge pins 540, a plurality ofwashers 542, and a plurality of hinge pin nuts 544. As a load bearing member, the number of trapezoidal hinges 510 used may vary based on an application or design. In certain embodiments, atrapezoidal hinge 510 may be used for each 8″ of length of the winged speed barrier assembly (300 ofFIG. 5 ). One of ordinary skill in the art will recognize that the number, or density, of trapezoidal hinges 510 per unit length of the winged speed barrier assembly (300 ofFIG. 5 ) may vary based on an application or design to achieve a desired strength and weight bearing capability in accordance with one or more embodiments of the present invention. - In certain embodiments, the first and the
second angle members 520 may be L-shaped members composed of steel having a thickness of approximately ⅜″. One of ordinary skill in the art will recognize that the first and thesecond angle members 520 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments, the first and thesecond angle members 520 may have dimensions of approximately 3″ in width by approximately 3″ in height with a length that may vary based on an application or design, but typically similar in length to the interior of thehollow frame assembly 400 to which it is attached. For example, if thebump board 310 is approximately 8′ in length, the first and thesecond angle members 520 may be approximately 8′ in length as well. One of ordinary skill in the art will recognize that the dimensions of the first and thesecond angle members 520 may vary based on an application or design in accordance with one or more embodiments of the present invention. The first and thesecond angle members 520 may include a plurality ofholes 522 through which the second plurality of hinge pins 540 may be disposed to secure the plurality of trapezoidal hinges 510 in place with a plurality ofwashers 542 and a plurality of hinge pin nuts 544. - The
hollow frame assembly 400 may include a firstlongitudinal sidewall member 410, a secondlongitudinal sidewall member 410, a first distalend sidewall member 420 connecting the first and the secondlongitudinal sidewall members 410 at the first distal end, a plurality of second distalend sidewall members 430 and acontrol box 440 connecting the first and the secondlongitudinal sidewall members 410 at the second distal end, a plurality of sidewall support braces 460 disposed within, perpendicular to, distributed along a longitudinal length of, and attached to, the interior faces of the first and the secondlongitudinal sidewall members 410, a firstlongitudinal slide plate 450 attached to a longitudinal edge of the firstlongitudinal sidewall member 410 by a first plurality ofhinge brackets 452, a secondlongitudinal slide plate 450 attached to a longitudinal edge of the secondlongitudinal sidewall member 410 by a second plurality ofhinge brackets 452, a first plurality of springs (470 ofFIG. 3 ) connecting the firstlongitudinal slide plate 450 to the firstlongitudinal sidewall member 410, and a second plurality of springs (470 ofFIG. 3 ) connecting the secondlongitudinal slide plate 450 to the firstlongitudinal sidewall member 410. - In certain embodiments, the first and the second
longitudinal sidewall members 410 may be substantially rectangular members composed of steel having a thickness of approximately 5/16″. One of ordinary skill in the art will recognize that the first and the secondlongitudinal sidewall members 410 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments, the first and the secondlongitudinal sidewall members 410 may have dimensions of approximately 6″ in width by approximately 8′ 6″ in length, where the length may vary based on an application or design. For example, if thebump board 310 is approximately 8 feet in length, the first and the secondlongitudinal sidewall members 410 may be approximately 8′ 6″ in length. One of ordinary skill in the art will recognize that the dimensions of the first and the secondlongitudinal sidewall members 410 may vary based on an application or design in accordance with one or more embodiments of the present invention. - In certain embodiments, the first distal
end sidewall member 420 may be a substantially rectangular member composed of steel having a thickness of approximately 5/16″. One of ordinary skill in the art will recognize that the first distalend sidewall member 420 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments, the first distalend sidewall member 420 may have dimensions of approximately 6″ in width by approximately 15″ in length. One of ordinary skill in the art will recognize that the dimensions of the first distalend sidewall member 420 may vary based on an application or design in accordance with one or more embodiments of the present invention. The first distalend sidewall member 420 may attach to the firstlongitudinal sidewall member 410 to the secondlongitudinal sidewall member 410 at the first distal end. In certain embodiments, the first distalend sidewall member 420 may attached to the first and the secondlongitudinal sidewall members 410 by weld joints. One of ordinary skill in the art will recognize that any other suitable methods of attachment may be used in accordance with one or more embodiments of the present invention. - In certain embodiments, the plurality of second distal
end sidewall members 430 andcontrol box 440 may be composed of steel having a thickness of approximately 5/16″. One of ordinary skill in the art will recognize that the plurality of second distalend sidewall members 430 andcontrol box 440 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments, the plurality of second distalend sidewall members 430 may have dimensions of approximately 4½″ in width by approximately 6″ in length and thecontrol box 440 may have dimensions of approximately 6″ in width by approximately 6″ in height by approximately 17″ in length. One of ordinary skill in the art will recognize that the dimensions of the plurality of second distalend sidewall members 430 andcontrol box 440 may vary based on an application or design in accordance with one or more embodiments of the present invention. The first second distalend sidewall member 430 may attach to the firstlongitudinal sidewall member 410 and thecontrol box 440 and the second second distalend sidewall member 430 may be attached to thecontrol box 440 and the secondlongitudinal sidewall member 410 at the second distal end. In certain embodiments, the plurality of second distalend sidewall members 430 may attach to the first and the secondlongitudinal sidewall members 410 and thecontrol box 440 by weld joints. One of ordinary skill in the art will recognize that any other suitable methods of attachment may be used in accordance with one or more embodiments of the present invention. - In certain embodiments, the plurality of sidewall support braces 460 may be substantially rectangular members composed of steel having a thickness of approximately 5/16″. One of ordinary skill in the art will recognize that the plurality of sidewall support braces 460 may be composed of other metals or metal alloys which may vary based on an application or design in accordance with one or more embodiments of the present invention. In addition, one or ordinary skill in the art will also recognize that the shape, composition, and/or thickness may vary based on an application or design in accordance with one or more embodiments of the present invention. In certain embodiments, each
sidewall support brace 460 may have dimensions of approximately 2″ in width by approximately 14⅜″ in length. One of ordinary skill in the art will recognize that the dimensions of the plurality of sidewall support braces 460 may vary based on an application or design in accordance with one or more embodiments of the present invention. Although not shown inFIG. 6 , a center support brace (490 ofFIG. 3 ) runs the length of the underside of thehollow frame assembly 400 having dimensions of approximately 2″ in width by approximately 10′ in length having a thickness of approximately 5/16″, however, the length and other dimensions may vary based on an application or design in accordance with one or more embodiments of the present invention. The center support brace (490 ofFIG. 3 ) may be welded on the lateral edges to each point of contact with eachsidewall support brace 460. The plurality of sidewall support braces 460 may attach to the interior faces of the firstlongitudinal sidewall member 410 to the secondlongitudinal sidewall member 410. In certain embodiments, the plurality of sidewall support braces 460 may be attached to the first and the secondlongitudinal sidewall members 410 by weld joints. One of ordinary skill in the art will recognize that any other suitable methods of attachment may be used in accordance with one or more embodiments of the present invention. Each of the sidewall support braces 460 have mounting holes (not independently illustrated, seeFIG. 2 ) where a plurality of double ended threadedstuds 482, a plurality ofwashers 484, and a plurality ofnuts 486 may be used to secure thelateral pivoting assembly 500 to thehollow frame assembly 400. -
FIG. 7 shows an exploded view of a wingedspeed barrier assembly 300,lateral pivoting assembly 500, andhollow frame assembly 400 of a retractablespeed barrier system 200 in accordance with one or more embodiments of the present invention. In certain embodiments, the first and the second mounting rods (330 ofFIG. 5 ) may be welded to the bottom side edges of the bump board (310 ofFIG. 5 ). The first hollow cylindrical barrel (514 of Figure ofFIG. 4 ) of each trapezoidal hinge (510 ofFIG. 6 ) may be secured in place between the first and the second mounting rods (330 ofFIG. 5 ) by a hinge pin (530 ofFIG. 3 ), washers (542 ofFIG. 3 ), and hinge pin nuts (544 ofFIG. 3 ). Once all trapezoidal hinges (510 ofFIG. 6 ) have been secured in place, the contact support members (326 ofFIG. 3 ) may be welded to their respective sides of the bump board (310 ofFIG. 5 ) followed by the support plates (322 ofFIG. 3 ) which may be welded to the contact points on the side of the bump board (310 ofFIG. 5 ), the contact points of the contact support members (326 ofFIG. 3 ), and then to the top surfaces of the force-limiting resting rods (340 ofFIG. 5 ). The cylindrical support members (324 ofFIG. 3 ) are then welded to their respective support plates (322 ofFIG. 3 ). The second hollow cylindrical barrel (516 of Figure ofFIG. 4 ) of each trapezoidal hinge (510 ofFIG. 6 ) may be secured to the first and the second angle members (520 ofFIG. 3 ) by hinge pins (540 ofFIG. 3 ), washers (542 ofFIG. 3 ), and hinge pin nuts (544 ofFIG. 3 ). The above-noted portion of the assembly process may take place at an offsite fabrication location prior to installation on site. - As noted above, the
hollow frame assembly 400 may be partially or wholly assembled in advance and disposed in a channel (not shown) cut in a street or roadway (110 ofFIG. 1 ). For example, in certain embodiments, thehollow frame assembly 400 may be secured to the bottom and sidewalls of the channel cut into the street or roadway (110 ofFIG. 1 ) using any mechanism suitable for doing so. In certain embodiments, an installer may securely attach a plurality of rebar pins or other structural elements (not shown) to the outer walls (not independently illustrated) of thehollow frame assembly 400, dispose thehollow frame assembly 400 with the plurality of rebar pins (not shown) in the channel, and then pour asphalt, concrete, cement, or other binding material (not shown) to fill in the area between the sidewalls, or outer edges, of the channel cut in the street or roadway (110 ofFIG. 1 ) and the outer sidewalls of thehollow frame assembly 400. In other embodiments, thehollow frame assembly 400 may be secured in the channel by epoxy anchors (not shown). One of ordinary skill in the art will recognize that any other mechanism for securing thehollow frame assembly 400 to the channel, or combinations of mechanisms thereof, may be used in accordance with one or more embodiments of the present invention. - Then the first and the second angle members (520 of
FIG. 3 ) and components assembled thereto may be lowered onto the sidewall support braces (460 ofFIG. 6 ) of thehollow frame assembly 400 and secured in place on the top side of double ended threaded studs (482 ofFIG. 3 ) by washers (484 ofFIG. 3 ) and nuts (486 ofFIG. 3 ). Once secured in place, asphalt, concrete, cement, or other binding material (not shown) may be used to flood the bottom of thehollow frame assembly 400, filling thehollow frame assembly 400 to a level just below the moving parts of thelateral pivoting assembly 500, and further securing thehollow frame assembly 400 to the channel cut in the street or roadway (110 ofFIG. 1 ). A linear actuator (610 ofFIG. 2 ) may be disposed in the control box (440 ofFIG. 6 ), connected to the bump board (310 ofFIG. 2 ), and connected to a power source. -
FIG. 8A shows a perspective view of a retractablespeed barrier system 200 in a retracted position in accordance with one or more embodiments of the present invention.FIG. 8B shows a perspective view of a retractablespeed barrier system 200 in a deployed position in accordance with one or more embodiments of the present invention.FIG. 8C shows a cross-sectional perspective view of a retractablespeed barrier system 200 in a deployed position in accordance with one or more embodiments of the present invention. - Advantages of one or more embodiments of the present invention may include one or more of the following:
- In one or more embodiments of the present invention, a retractable speed barrier system uses trapezoidal hinges that provide greater structural support than other lifting mechanisms. The strength of the system may be adjusted by modifying the width of each trapezoidal hinge or by increasing the number, or density, of trapezoidal hinges per length of the winged speed barrier assembly.
- In one or more embodiments of the present invention, a retractable speed barrier system uses a lateral pivoting scheme that pivots the winged speed barrier assembly between a retracted position and a deployed position in a lateral manner that is perpendicular to the flow of traffic.
- In one or more embodiments of the present invention, a retractable speed barrier system uses a lateral pivoting scheme that allows for faster retraction and deployment of the winged speed barrier assembly over conventional lifting schemes. The lateral pivoting motion requires substantially less force than conventional lifting schemes and the winged speed barrier assembly may be retracted or deployed in less than one second.
- In one or more embodiments of the present invention, a retractable speed barrier system uses a lateral pivoting scheme that requires substantially fewer parts, is less complex, and more elegant than conventional lifting schemes that tend to be over-engineered. The lateral pivoting assembly does not require the use of highly engineered or precision manufactured components.
- In one or more embodiments of the present invention, a retractable speed barrier system uses a lateral pivoting scheme that includes a plurality of trapezoidal hinges that are more structurally sound. The trapezoidal hinges distribute force more evenly to the frame assembly and can support more weight than conventional lifting schemes. The strength of the retractable speed barrier can be adjusted by modifying the number of trapezoidal hinges used per unit length of the winged speed barrier assembly.
- In one or more embodiments of the present invention, a retractable speed barrier system can be quickly and easily installed in an existing road and repaired in situ.
- In one or more embodiments of the present invention, a retractable speed barrier system provides a more compact design in a smaller footprint that is modular. The winged speed barrier assembly, lateral pivoting assembly, and hollow frame assembly can be substantially assembled prior to installation on site allowing for fast and efficient install. Because of the modular design, if an aspect of the retractable speed barrier system requires repair, the damages aspect can be replaced in situ or the entire system can be replaced.
- In one or more embodiments of the present invention, a retractable speed barrier system may use a RADAR detection system, LiDAR detection system, or speed detection camera system that detects the speed of an oncoming vehicle at a predetermined distance from the retractable speed barrier system. If the oncoming vehicle is approaching at a speed that exceeds a predetermined speed, the retractable speed barrier system can deploy winged speed barrier assembly and retract the winged speed barrier assembly when once the vehicle has passed. An electronic display may be used to display the speed of the oncoming vehicle and provide a warning to the oncoming vehicle when the winged speed barrier assembly is deployed.
- In one or more embodiments of the present invention, a retractable speed barrier system may use a switch that deploys the winged speed barrier assembly in a first switch state, such as the on position, and retracts the winged speed barrier assembly in a second switch state, such as the off position. An electronic display may optionally be used to display the speed of the oncoming vehicle and/or provide a warning to the oncoming vehicle when the winged speed barrier assembly is deployed.
- In one or more embodiments of the present invention, a retractable speed barrier system may use a timer that deploys the winged speed barrier assembly at a first time and retracts the winged speed barrier assembly at a second time. An electronic display may optionally be used to display the speed of the oncoming vehicle and/or provide a warning to the oncoming vehicle when the winged speed barrier assembly is deployed.
- In one or more embodiments of the present invention, a retractable speed barrier system may use a safety sensor, such as, for example, a proximity sensor, to detect when a person is in the vicinity of the retractable speed barrier system and prevent the winged speed barrier assembly from deploying when a person or an animal is detected in the immediate vicinity.
- In one or more embodiments of the present invention, a retractable speed barrier system may include an emergency vehicle detection system that prevents the retractable speed barrier system from deploying, allowing emergency vehicles to traverse the street or roadway unimpeded at speed.
- In one or more embodiments of the present invention, multiple retractable speed barriers may be used in combination across both directions of traffic to prevent a driver from circumventing the retractable speed barrier by swerving into the other lane. In these embodiments, the detection systems may work cooperatively in both directions and make decisions regarding retraction and deployment based on both detection systems.
- In one or more embodiments of the present invention, a retractable speed barrier system may be advantageously used in school zones, neighborhoods, parking lots, and any other road or structure in which vehicular speeds need to be forcibly regulated.
- In one or more embodiments of the present invention, a retractable speed barrier system may be electronically deactivated by oncoming emergency vehicles such as police, fire, and emergency medical services.
- In one or more embodiments of the present invention, a retractable speed barrier system may be used as a physical barrier to prevent drivers from inadvertently entering a street, roadway, or highway in the wrong direction. In certain embodiments, the height of the bump board could be increased substantially, presenting a higher physical obstacle to impede the vehicle of drivers traveling in the wrong direction.
- While the present invention has been described with respect to the above-noted embodiments, those skilled in the art, having the benefit of this disclosure, will recognize that other embodiments may be devised that are within the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the appended claims.
Claims (19)
1. A retractable speed barrier system comprising:
a winged speed barrier assembly;
a lateral pivoting assembly comprising a plurality of hinges;
a hollow frame assembly; and
an electrically activated linear actuator,
wherein the winged speed barrier assembly is attached to the hollow frame assembly by the lateral pivoting assembly, and
wherein the linear actuator causes the winged speed barrier assembly to laterally pivot on the plurality of hinges in a direction perpendicular to the flow of traffic between a retracted positon and a deployed position.
2. The system of claim 1 , wherein the winged speed barrier assembly comprises:
a bump board;
a first mounting rod attached to a first longitudinal edge of a bottom side of the bump board;
a second mounting rod attached to a second longitudinal edge of the bottom side of the bump board;
a first strike plate attached to a first longitudinal sidewall of the bump board;
a second strike plate attached to a second longitudinal sidewall of the bump board;
a first distal slide plate attached to a first distal end sidewall of the bump board;
a second distal slide plate attached to a second distal end sidewall of the bump board; and
a plurality of force-limiting resting rods disposed perpendicular to, distributed along a longitudinal length of, and attached to, the first and the second mounting rods.
3. The system of claim 1 , wherein the lateral pivoting assembly further comprises:
a first angle member;
a second angle member;
a plurality of first removable hinge pins;
a plurality of second removable hinge pins;
a plurality of washers; and
a plurality of hinge pin nuts.
4. The system of claim 1 , wherein the hollow frame assembly comprises:
a first longitudinal sidewall member;
a second longitudinal sidewall member;
a first distal end sidewall member connecting the first and the second longitudinal sidewall members at the first distal end;
a plurality of second distal end sidewall members and a control box connecting the first and the second longitudinal sidewall members at the second distal end,
a plurality of sidewall support braces disposed within, perpendicular to, distributed along a longitudinal length of, and attached to, the first and the second longitudinal sidewall members;
a first longitudinal slide plate attached to a longitudinal edge of the first longitudinal sidewall member;
a second longitudinal slide plate attached to a longitudinal edge of the second longitudinal sidewall member;
a first plurality of springs connecting the first longitudinal slide plate to the first longitudinal sidewall member; and
a second plurality of springs connecting the second longitudinal slide plate to the second longitudinal sidewall member.
5. The system of claim 1 , wherein the electrically actuated linear actuator comprises:
an actuating rod; and
a contact pad,
wherein a first side of the contact pad is attached to a distal end of the actuating rod and a second side of the contact pad is attached to a distal end of the bump board,
6. The system of claim 1 , further comprising:
an activation system.
7. The system of claim 6 , wherein the activation system comprises:
a RADAR detection system configured to detect a speed of an oncoming vehicle at a predetermined distance and retractably deploy the winged speed barrier assembly if the oncoming vehicle speed exceeds a predetermined speed and retract the winged speed barrier assembly once the vehicle has passed;
a speed display configured to display the speed of the oncoming vehicle; and
an alert display configured to display a warning when the winged speed barrier assembly is deployed.
8. The system of claim 6 , wherein the activation system comprises:
a LiDAR detection system configured to detect a speed of an oncoming vehicle at a predetermined distance and retractably deploy the winged speed barrier assembly if the oncoming vehicle speed exceeds a predetermined speed and retract the winged speed barrier assembly once the vehicle has passed;
a speed display configured to display the speed of the oncoming vehicle; and
an alert display configured to display a warning when the winged speed barrier assembly is deployed.
9. The system of claim 6 , wherein the activation system comprises:
a speed detection camera system configured to detect a speed of an oncoming vehicle at a predetermined distance and retractably deploy the winged speed barrier assembly if the oncoming vehicle speed exceeds a predetermined speed and retract the winged speed barrier assembly once the vehicle has passed;
a speed display configured to display the speed of the oncoming vehicle; and
an alert display configured to display a warning when the winged speed barrier assembly is deployed.
10. The system of claim 6 , wherein the activation system comprises:
a switch configured to deploy the winged speed barrier assembly in a first switch state and to retract the winged speed barrier assembly in a second switch state.
11. The system of claim 6 , wherein the activation system comprises:
a timer system configured to deploy the winged speed barrier assembly at a first time and retract the winged speed barrier assembly at a second time.
12. The system of claim 1 , further comprising:
a safety sensor configured to detect a person in a vicinity of the retractable speed barrier system and prevent the winged speed barrier assembly from deploying if a person is detected in the vicinity.
13. The system of claim 1 , further comprising:
asphalt disposed within the hollow frame assembly configured to cover the plurality of sidewall support braces and secure the hollow frame assembly in place.
14. The system of claim 1 , wherein the winged speed barrier assembly is deployed in less than one second.
15. The system of claim 1 , wherein the winged speed barrier assembly is retracted in less than one second.
16. The system of claim 2 , wherein each strike plate comprises:
a support plate;
a contact support member disposed on a first side of the support plate; and
a cylindrical support member disposed on a second side of the support plate,
wherein the contact support member is attached to a longitudinal sidewall of the bump board.
17. The system of claim 1 , wherein the hollow frame assembly is anchored to an asphalt, concrete, or cement surface.
18. The system of claim 1 , wherein the winged speed barrier assembly is attached to the lateral pivoting system by securing a plurality of first removable hinge pins through a plurality of holes disposed in the first mounting rod, the plurality of hinges, and a plurality of holes disposed in the second mounting rod.
19. The system of claim 1 , wherein the lateral pivoting system is attached to the hollow frame assembly by securing a plurality of second removable hinge pins through a plurality of holes disposed in a first angle member, the plurality of hinges, and a plurality of holes disposed in a second angle member.
Priority Applications (1)
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US15/591,265 US20170241090A1 (en) | 2015-09-17 | 2017-05-10 | Retractable speed barrier |
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US201562219675P | 2015-09-17 | 2015-09-17 | |
US14/924,529 US9677232B2 (en) | 2015-09-17 | 2015-10-27 | Retractable speed barrier |
US15/591,265 US20170241090A1 (en) | 2015-09-17 | 2017-05-10 | Retractable speed barrier |
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US14/924,529 Continuation US9677232B2 (en) | 2015-09-17 | 2015-10-27 | Retractable speed barrier |
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CN111640369A (en) * | 2020-06-24 | 2020-09-08 | 安徽农业大学 | Highway billboard |
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CN111640369A (en) * | 2020-06-24 | 2020-09-08 | 安徽农业大学 | Highway billboard |
CN112726446A (en) * | 2020-12-29 | 2021-04-30 | 南通市交通建设工程有限公司 | Traffic road construction deceleration system |
Also Published As
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US9677232B2 (en) | 2017-06-13 |
US20170081814A1 (en) | 2017-03-23 |
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