US3838391A - Roadway safety trap - Google Patents

Roadway safety trap Download PDF

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Publication number
US3838391A
US3838391A US00344152A US34415273A US3838391A US 3838391 A US3838391 A US 3838391A US 00344152 A US00344152 A US 00344152A US 34415273 A US34415273 A US 34415273A US 3838391 A US3838391 A US 3838391A
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platform
vehicle
units
roadway
wrong
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US00344152A
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L Mintz
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/02—Detecting movement of traffic to be counted or controlled using treadles built into the road
    • 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
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/10—Vehicle barriers specially adapted for allowing passage in one direction only
    • E01F13/105—Vehicle barriers specially adapted for allowing passage in one direction only depressible by right-way traffic, e.g. pivotally; actuated by wrong-way traffic
    • 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
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/12—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions for forcibly arresting or disabling vehicles, e.g. spiked mats
    • E01F13/126—Pitfall barriers, causing the vehicle to face a step-like obstruction

Definitions

  • ABSTRACT A travel-resisting device mounted in an exit ramp of a throughway.
  • the device consisting of two or three separate units each of which includes a downwardly tiltable platform so that when rode across in a wrong direction will cause the dropped wheels to abut hard against a fixed ledge so to resist and hold back further forward travel, the device also activating signal devices such as lights or bells to alert and warn other motorists and alert the careless drivers, and a last of the units having a toothed or sharp knife-like edge on the ledge so to puncture the tires as a final step to stop the vehicle and prevent a serious accident on the high speed right-of-way.
  • signal devices such as lights or bells to alert and warn other motorists and alert the careless drivers
  • Another object is to provide a roadway safety trap which when being encountered by a wrong entering vehicle, additionally activates signal devices such as lights or a bell to warn other motorists, and alert careless drivers.
  • Still another object is to provide a roadway safety trap which may comprise several separate units along the ramp and wherein an insistent wrong moving motorist is finally stopped by a last of the units puncturing his vehicle tires so to arrest further travel.
  • FIG. 1 is a perspective view of the invention.
  • FIG. 2 is an enlarged cross-sectional view taken on line 22 of FIG. 1.
  • the reference numeral represents a roadway safety trap according to the present invention, wherein there may be several individual units 11 installed along an exit ramp 12 of a high speed highway.
  • the unit 11 includes a box-like frame 13 installed in concrete 14, the frame including a perforated grate 15 on its bottom so to permit rain water to flow into a sewer inlet 16 through the bottom of the concrete.
  • a stationary fulcrum 17 that supports a pivotable bar 18 about pivot pin 19.
  • One end of bar rests on compression coil spring 20.
  • a depressor 21 rests on this end of the bar and protrudes at its upper end above a roadway ramp surface 22.
  • the center of the platform is urged pivotally upward by a depressible compression coil spring 26 fitted around a pin 27, the spring bearing upon a stanchion 28.
  • Another stationary fulcrum 29 supports a pin 30 on which a tripping support 31 is pivotable.
  • the support 31 has a pair of sideward jaws 32 and 33 between which an opposite end of bar 18 is slidably supported.
  • tripping support 31 has an integral side arm 34 to which one end of a tension spring 35 is attached and which urges the tripping support to normally be pivoted underneath the opposite end of the platform so to support a vehicle travel thereacross in a correct direction.
  • An electrical breaker switch 36 is mounted on a side of the tripping support.
  • each one of said units including a platform which is pivotable about its one end, said one end being traversed first by vehicle' travelling in the wrong direction, the other end being supported upon a pivotable tripping support which supports said platform flush with a surface of said ramp, a depressor at said one end of said unit being activated by the weight of a vehicle wheel traveling thereupon, said depressor activating a mechanismv to cause said tripping support to'pivot away from under said platform so to cause said platform to pivot downward by a weight of said vehicle, so the wheels of said vehicle abut against an edge of a ledge of said unit, an electric switch in said unit being contacted by said platform when depressed, thus closing circuits to warning devices for other motorists, and alert careless wrong-way drivers, and a last of said units having a stationary toothed or knife edge that defines

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

A travel-resisting device mounted in an exit ramp of a throughway, expressway or other road, and which is designed to prevent automobiles to enter and move in wrong direction lanes; the device consisting of two or three separate units each of which includes a downwardly tiltable platform so that when rode across in a wrong direction will cause the dropped wheels to abut hard against a fixed ledge so to resist and hold back further forward travel, the device also activating signal devices such as lights or bells to alert and warn other motorists and alert the careless drivers, and a last of the units having a toothed or sharp knife-like edge on the ledge so to puncture the tires as a final step to stop the vehicle and prevent a serious accident on the high speed right-of-way.

Description

United States Patent [1 1 Mintz Sept. 24, 1974 ROADWAY SAFETY TRAP [76] Inventor: Leonard H. Mintz, 24340 Miles Rd.,
Cleveland, Ohio 44128 22 Filed: Mar. 23, 1973 21 Appl. No.: 344,152
[52] US. Cl. 340/39 [51] Int. Cl G08g 1/02 [58] Field of Search 340/31 R. 39; 49/49 [56] References Cited UNITED STATES PATENTS 2,762,145 9/1956 Rupe 49/49 2,917,283 12/1959 Sumners 49/49 3,266,013 8/1966 Schmidt. 340/31 R 3,325,782 6/1967 Der.' 340/31 R 3,389,677 6/1968 Dunne v v. 340/31 R 3,748,782 7/1973 Reynolds 49/49 FOREIGN PATENTS OR APPLICATIONS 296,735 9/1928 Great Britain 340/39 563,104 3/1937 Germany 340/39 Primary Examiner-Kathleen H. Claffy Assistant Examiner-Randall P. Myers [57] ABSTRACT A travel-resisting device mounted in an exit ramp of a throughway. expressway or other road, and which is designed to prevent automobiles to enter and move in wrong direction lanes; the device consisting of two or three separate units each of which includes a downwardly tiltable platform so that when rode across in a wrong direction will cause the dropped wheels to abut hard against a fixed ledge so to resist and hold back further forward travel, the device also activating signal devices such as lights or bells to alert and warn other motorists and alert the careless drivers, and a last of the units having a toothed or sharp knife-like edge on the ledge so to puncture the tires as a final step to stop the vehicle and prevent a serious accident on the high speed right-of-way.
1 Claim, 2 Drawing Figures ROADWAY SAFETY TRAP This invention relates generally to unidirectional traf fic controls.
It is well known that upon occasion a careless driver enters a high speed expressway on an exit ramp so that he is traveling in a wrong direction. This is extremely serious as there is a danger of a head-on collision with a high speed moving car or truck on the right-of-way.
Accordingly, it is a principal object of the present invention to provide a roadway safety trap that is installed in an exit ramp of a high speed roadway, the trap holding back a vehicle to enter traffic lanes in a wrong direction.
Another object is to provide a roadway safety trap which when being encountered by a wrong entering vehicle, additionally activates signal devices such as lights or a bell to warn other motorists, and alert careless drivers. I
Still another object is to provide a roadway safety trap which may comprise several separate units along the ramp and wherein an insistent wrong moving motorist is finally stopped by a last of the units puncturing his vehicle tires so to arrest further travel.
Other objects are to provide a roadway safety trap which is simple in design, inexpensive to manufacture, rugged in construction, easy to use, and efficient in operation.
These and other objects will be readily evident upon a study of the following specification and the accompanying drawing, wherein:
FIG. 1 is a perspective view of the invention.
FIG. 2 is an enlarged cross-sectional view taken on line 22 of FIG. 1.
Referring now to the drawing in detail, the reference numeral represents a roadway safety trap according to the present invention, wherein there may be several individual units 11 installed along an exit ramp 12 of a high speed highway.
The unit 11 includes a box-like frame 13 installed in concrete 14, the frame including a perforated grate 15 on its bottom so to permit rain water to flow into a sewer inlet 16 through the bottom of the concrete. Within the frame there is a stationary fulcrum 17 that supports a pivotable bar 18 about pivot pin 19. One end of bar rests on compression coil spring 20. A depressor 21 rests on this end of the bar and protrudes at its upper end above a roadway ramp surface 22.
A platform 23 pivotable at one end about a pin 24 supported in stationary bracket 25 closes the top of the frame, and the top surface thereof is flush at one end with the road surface and at its other end flush with the top of the depressor 21. The center of the platform is urged pivotally upward by a depressible compression coil spring 26 fitted around a pin 27, the spring bearing upon a stanchion 28.
Another stationary fulcrum 29 supports a pin 30 on which a tripping support 31 is pivotable. The support 31 has a pair of sideward jaws 32 and 33 between which an opposite end of bar 18 is slidably supported. The
support 31 has an integral side arm 34 to which one end of a tension spring 35 is attached and which urges the tripping support to normally be pivoted underneath the opposite end of the platform so to support a vehicle travel thereacross in a correct direction. An electrical breaker switch 36 is mounted on a side of the tripping support.
In use, when an automobile travels in a proper direction (indicated by solid arrow 37), the wheels ride across the platform 23 which is stationary during this travel. By the time the wheel travels over the depressor 21 that activates the mechanism, the wheel is no longer on the platform, so the ride is smooth.
However, when a vehicle travels in a wrong direction (indicated by dotted arrow 38), the wheel rides first on the depressor causing it to depress the end of bar 18 against spring 20, the bar pivoting around pin 19 to cause the other end of the bar to move upward, thus causing the tripping support to pivot away from under the platform to the position shown by the dotted lines. Thus, when the wheels leave the depressor and start to travel on the platform, the weight of the vehicle causes the platform to pivot downward to the position shown by the dotted lines, thus causing the traveling wheels to abut hard against an edge 39 of a stationary ledge 40, thus sufficiently jolting the vehicle to get the motorists attention that something is not right to attempt travel across the units. The downwardly pivoted platform contacts the switch 36 which thus activates signals such as lights and bells so to warn other nearby motorists and alert careless drivers. It is suggested that two or three units 11 be installed along an exit ramp.
I claim:
1. In a roadway safety trap the combination of several separate units installed within an exit ramp of a roadway so to deter entry by a vehicle and resultant travel in a wrong direction on the roadway, each one of said units including a platform which is pivotable about its one end, said one end being traversed first by vehicle' travelling in the wrong direction, the other end being supported upon a pivotable tripping support which supports said platform flush with a surface of said ramp, a depressor at said one end of said unit being activated by the weight of a vehicle wheel traveling thereupon, said depressor activating a mechanismv to cause said tripping support to'pivot away from under said platform so to cause said platform to pivot downward by a weight of said vehicle, so the wheels of said vehicle abut against an edge of a ledge of said unit, an electric switch in said unit being contacted by said platform when depressed, thus closing circuits to warning devices for other motorists, and alert careless wrong-way drivers, and a last of said units having a stationary toothed or knife edge that defines one side of an opening of a box-like frame into which said platform other end is downwardly pivotable so to finally stop said vehicle by puncturing its tires in case an insistent wrong moving driver refuses to be halted by the other said units.

Claims (1)

1. In a roadway safety trap the combination of several separate units installed within an exit ramp of a roadway so to deter entry by a vehicle and resultant travel in a wrong direction on the roadway, each one of said units including a platform which is pivotable about its one end, said one end being traversed first by vehicle travelling in the wrong direction, the other end being supported upon a pivotable tripping support which supports said platform flush with a surface of said ramp, a depressor at said one end of said unit being activated by the weight of a vehicle wheel traveling thereupon, said depressor activating a mechanism to cause said tripping support to pivot away from under said platform so to cause said platform to pivot downward by a weight of said vehicle, so the wheels of said vehicle abut against an edge of a ledge of said unit, an electric switch in said unit being contacted by said platform when depressed, thus closing circuits to warning devices for other motorists, and alert careless wrong-way drivers, and a last of said units having a stationary toothed or knife edge that defines one side of an opening of a box-like frame into which said platform other end is downwardly pivotable so to finally stop said vehicle by puncturing its tires in case an insistent wrong moving driver refuses to be halted by the other said units.
US00344152A 1973-03-23 1973-03-23 Roadway safety trap Expired - Lifetime US3838391A (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012001A2 (en) * 1978-11-23 1980-06-11 Controlec Limited Traffic barriers
FR2498543A1 (en) * 1981-01-27 1982-07-30 Carpentier Michel Non-payment preventing device for self service petrol stations - uses controlled pneumatically actuated triangular section plate raised to prevent passage of motor vehicle if travelling in wrong direction
FR2578561A1 (en) * 1985-03-08 1986-09-12 Cib Location Device tending to discourage improper parking on pavements
GB2270533A (en) * 1989-12-01 1994-03-16 Auto Space Saver Limited Traffic control unit
AT479U1 (en) * 1994-09-27 1995-11-27 Steiner Anton METHOD AND DEVICE FOR PREVENTING DRIVING A ROAD IN THE WRONG DIRECTION
US5486065A (en) * 1992-06-03 1996-01-23 James; Richard M. Traffic speed control unit and assembly
AT401536B (en) * 1994-09-12 1996-09-25 Rudolf Holzer Device for preventing driving onto a road surface
GB2333114A (en) * 1998-01-13 1999-07-14 John Gwyn Harvey Improvements relating to height adjustable bumps for road traffic control
ES2194573A1 (en) * 2001-02-02 2003-11-16 Villelabeitia German Hormaza Vehicle access limiting device comprises body provided with lowerable upper surface by weight, which can be articulated
US20060104713A1 (en) * 2004-11-17 2006-05-18 Gelfand Matthew A Retractable energy absorbing system
US20070201947A1 (en) * 2006-02-21 2007-08-30 Rastegar Jahangir S Modular apparatus for decelerating a vehicle
US7441982B1 (en) * 2005-02-14 2008-10-28 Sabah Naser Al-Sabah Portable traffic control barrier
US20100003078A1 (en) * 2008-07-07 2010-01-07 National Taipei University Of Technology Anti-terror car-attack defending apparatus
WO2012057679A1 (en) * 2010-10-26 2012-05-03 Edeva Ab Road module for regulation of vehicle passability at a road section
FR2995916A1 (en) * 2012-09-21 2014-03-28 Jean Claude Imbert Mechanical, built-in device for use on e.g. exit ramps of highways, for neutralizing terrestrial vehicles circulating against direction by destruction of tires, has box including plate that is intended to start movement of crenel carriage
AT513772A1 (en) * 2012-12-27 2014-07-15 Javid Esmaeil Mechanical warning signal system
US20180044866A1 (en) * 2016-08-10 2018-02-15 The Board of Regents of the Nevada System of Higher Education on Behalf of the Univ. of Nevada Automated rumble strip assembly
US20190194888A1 (en) * 2017-12-27 2019-06-27 Pogotec Inc. Vehicle Disablement System
US10407853B1 (en) 2017-06-15 2019-09-10 Peter G Dunn Wrong-way vehicle prevention system
US10648141B2 (en) 2016-08-10 2020-05-12 The Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Of Nevada, Las Vegas Automated rumble strip assembly
US11554758B2 (en) * 2019-11-19 2023-01-17 International Business Machines Corporation Low profile wheel chock
US11718278B2 (en) * 2019-11-19 2023-08-08 International Business Machines Corporation Low profile wheel chock

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB296735A (en) * 1927-06-07 1928-09-07 James Edgar Improvements in or relating to signalling apparatus for road traffic purposes
DE563104C (en) * 1922-04-07 1937-03-11 Erwin Jooss Electric roadside contact device for activating signals at courtyard exits or unclear crossroads with responsive contact when driving over in only one direction
US2762145A (en) * 1953-04-27 1956-09-11 Orville W Rupe One-way-travel barrier
US2917283A (en) * 1954-04-22 1959-12-15 Woodford R Thompson Jr Traffic control apparatus for a closed area
US3266013A (en) * 1964-04-24 1966-08-09 Lothar V B Schmidt Freeway safety device
US3325782A (en) * 1965-01-11 1967-06-13 Der Nicholas Traffic control system
US3389677A (en) * 1966-12-16 1968-06-25 Leo J. Dunne Traffic control device
US3748782A (en) * 1972-11-14 1973-07-31 D Reynolds Traffic flow controller

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE563104C (en) * 1922-04-07 1937-03-11 Erwin Jooss Electric roadside contact device for activating signals at courtyard exits or unclear crossroads with responsive contact when driving over in only one direction
GB296735A (en) * 1927-06-07 1928-09-07 James Edgar Improvements in or relating to signalling apparatus for road traffic purposes
US2762145A (en) * 1953-04-27 1956-09-11 Orville W Rupe One-way-travel barrier
US2917283A (en) * 1954-04-22 1959-12-15 Woodford R Thompson Jr Traffic control apparatus for a closed area
US3266013A (en) * 1964-04-24 1966-08-09 Lothar V B Schmidt Freeway safety device
US3325782A (en) * 1965-01-11 1967-06-13 Der Nicholas Traffic control system
US3389677A (en) * 1966-12-16 1968-06-25 Leo J. Dunne Traffic control device
US3748782A (en) * 1972-11-14 1973-07-31 D Reynolds Traffic flow controller

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012001A3 (en) * 1978-11-23 1980-10-01 Controlec Limited Traffic barriers
EP0012001A2 (en) * 1978-11-23 1980-06-11 Controlec Limited Traffic barriers
FR2498543A1 (en) * 1981-01-27 1982-07-30 Carpentier Michel Non-payment preventing device for self service petrol stations - uses controlled pneumatically actuated triangular section plate raised to prevent passage of motor vehicle if travelling in wrong direction
FR2578561A1 (en) * 1985-03-08 1986-09-12 Cib Location Device tending to discourage improper parking on pavements
GB2270533A (en) * 1989-12-01 1994-03-16 Auto Space Saver Limited Traffic control unit
GB2270533B (en) * 1989-12-01 1994-06-15 Auto Space Saver Limited Traffic flow control unit
US5486065A (en) * 1992-06-03 1996-01-23 James; Richard M. Traffic speed control unit and assembly
AT401536B (en) * 1994-09-12 1996-09-25 Rudolf Holzer Device for preventing driving onto a road surface
AT479U1 (en) * 1994-09-27 1995-11-27 Steiner Anton METHOD AND DEVICE FOR PREVENTING DRIVING A ROAD IN THE WRONG DIRECTION
GB2333114A (en) * 1998-01-13 1999-07-14 John Gwyn Harvey Improvements relating to height adjustable bumps for road traffic control
GB2333114B (en) * 1998-01-13 2002-01-09 John Gwyn Harvey Improvements relating to height adjustable bumps for road traffic control
ES2194573A1 (en) * 2001-02-02 2003-11-16 Villelabeitia German Hormaza Vehicle access limiting device comprises body provided with lowerable upper surface by weight, which can be articulated
US20090185857A1 (en) * 2004-11-17 2009-07-23 Gelfand Matthew A Retractable Energy Absorbing System
US20060104713A1 (en) * 2004-11-17 2006-05-18 Gelfand Matthew A Retractable energy absorbing system
WO2006055210A3 (en) * 2004-11-17 2007-02-22 Universal Safety Response Inc Retractable energy absorbing system
US7530759B2 (en) 2004-11-17 2009-05-12 Universal Safety Response, Inc. Retractable energy absorbing system
US7441982B1 (en) * 2005-02-14 2008-10-28 Sabah Naser Al-Sabah Portable traffic control barrier
US20070201947A1 (en) * 2006-02-21 2007-08-30 Rastegar Jahangir S Modular apparatus for decelerating a vehicle
US20100003078A1 (en) * 2008-07-07 2010-01-07 National Taipei University Of Technology Anti-terror car-attack defending apparatus
WO2012057679A1 (en) * 2010-10-26 2012-05-03 Edeva Ab Road module for regulation of vehicle passability at a road section
US9840817B2 (en) 2010-10-26 2017-12-12 Edeva Ab Road module for regulation of vehicle passability at a road section
FR2995916A1 (en) * 2012-09-21 2014-03-28 Jean Claude Imbert Mechanical, built-in device for use on e.g. exit ramps of highways, for neutralizing terrestrial vehicles circulating against direction by destruction of tires, has box including plate that is intended to start movement of crenel carriage
AT513772A1 (en) * 2012-12-27 2014-07-15 Javid Esmaeil Mechanical warning signal system
US20180044866A1 (en) * 2016-08-10 2018-02-15 The Board of Regents of the Nevada System of Higher Education on Behalf of the Univ. of Nevada Automated rumble strip assembly
US10648141B2 (en) 2016-08-10 2020-05-12 The Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Of Nevada, Las Vegas Automated rumble strip assembly
US10829900B2 (en) * 2016-08-10 2020-11-10 The Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Of Nevada, Las Vegas Automated rumble strip assembly
US10407853B1 (en) 2017-06-15 2019-09-10 Peter G Dunn Wrong-way vehicle prevention system
US20190194888A1 (en) * 2017-12-27 2019-06-27 Pogotec Inc. Vehicle Disablement System
US11554758B2 (en) * 2019-11-19 2023-01-17 International Business Machines Corporation Low profile wheel chock
US11718278B2 (en) * 2019-11-19 2023-08-08 International Business Machines Corporation Low profile wheel chock

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