Speed bumps for roadways
First Claim
1. A modular inclined ramp structure for mounting on a roadway surface, comprising:
- a plurality of solid ramp plates, each having a flat platform section, a sloping section leading to the flat platform section and a rounded transitional section therebetween, each ramp plate being made of resilient, energy-absorbing material which deforms elastically when driven over and each ramp plate having a reinforcing and fixing strip extending along the sloping section, running parallel to a lowermost edge of the sloping section, each ramp plate being fixable to the roadway surface by means inserted through each ramp plate along the reinforcing and fixing strip;
reflecting means embedded in the sloping section of each ramp plate;
a plurality of solid spacer plates, each having a flat upper surface aligned with the platform sections of the ramp plates and being abuttable against any ramp plate at a side of the ramp plate opposite the lowermost edge and abuttable against other spacer plates along any edge, the ramp and spacer plates having blunt contact surfaces for abutting one another;
a plurality of inserts for securing the ramp and spacer plates to one another, each of the ramp and spacer plates having recesses at corners of the abuttable contact surfaces, the recesses of abutted ramp and spacer plates forming composite recesses for receiving the inserts; and
,threaded means mountable through the inserts for attachment into the roadway surface, whereby a plurality of inclined ramp structures may be formed by interconnection of different numbers of the ramp plates and the spacer plates in different geometrical configurations and each lowermost edge and part of each sloping section adjacent each lowermost edge is substantially prevented from bending and deflecting upwardly when driven over.
2 Assignments
0 Petitions
Accused Products
Abstract
A resilient ramp structure for highways, especially useful as a highway speed bump has at least two ramp plates fixable to a highway surface. Each ramp plate has an inclined surface leading to a level platform surface which can be abutted against another such plate or to a flat platform plate. In the ramp plate, the inclined and platform sections are formed integrally. A reinforcing strip runs along the inclined portion of the ramp plate and receives screws to be affixed in the underlying material. Junctions between abutting ramp and/or platform plates are secured by pressure plates that are disposed in recesses at the corners of the plates and hold each adjacent plate to the underlying material.
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Citations
20 Claims
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1. A modular inclined ramp structure for mounting on a roadway surface, comprising:
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a plurality of solid ramp plates, each having a flat platform section, a sloping section leading to the flat platform section and a rounded transitional section therebetween, each ramp plate being made of resilient, energy-absorbing material which deforms elastically when driven over and each ramp plate having a reinforcing and fixing strip extending along the sloping section, running parallel to a lowermost edge of the sloping section, each ramp plate being fixable to the roadway surface by means inserted through each ramp plate along the reinforcing and fixing strip; reflecting means embedded in the sloping section of each ramp plate; a plurality of solid spacer plates, each having a flat upper surface aligned with the platform sections of the ramp plates and being abuttable against any ramp plate at a side of the ramp plate opposite the lowermost edge and abuttable against other spacer plates along any edge, the ramp and spacer plates having blunt contact surfaces for abutting one another; a plurality of inserts for securing the ramp and spacer plates to one another, each of the ramp and spacer plates having recesses at corners of the abuttable contact surfaces, the recesses of abutted ramp and spacer plates forming composite recesses for receiving the inserts; and
,threaded means mountable through the inserts for attachment into the roadway surface, whereby a plurality of inclined ramp structures may be formed by interconnection of different numbers of the ramp plates and the spacer plates in different geometrical configurations and each lowermost edge and part of each sloping section adjacent each lowermost edge is substantially prevented from bending and deflecting upwardly when driven over. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An inclined ramp structure for mounting on a roadway surface, comprising:
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at least two ramp plates, each having a platform section, a sloping section leading from a lowermost edge to the platform section and a rounded transition section joining the platform and sloping sections, and each having a blunt contact surface opposite the lowermost edge, each ramp plate being made of resilient, energy-absorbing material which deforms elastically when driven over; a reinforcement and affixation strip extending along the sloping section of each ramp plate and running parallel to the lowermost edge of the sloping section, each ramp plate being fixable to the roadway surface by means inserted through each ramp plate along the reinforcement strip; and
,at least one insert for securing the ramp plates to one another along the blunt contact surfaces, each of the ramp plates having recesses at corners of the contact surfaces, the recesses of abutted ramp plates forming composite recesses for receiving the inserts, whereby the lowermost edge and part of each sloping section adjacent to the lowermost edge is substantially prevented from bending and deflecting upwardly when driven over. - View Dependent Claims (18, 19)
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20. A modular, inclined ramp system for mounting on a roadway surface, comprising:
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a plurality of ramp plates, each of the ramp plates having a platform section, a sloping section leading from a lowermost edge to the platform section and a rounded transition section joining the platform and sloping sections, and each having a blunt contact surface opposite the lowermost edge, each ramp plate being made of resilient energy-absorbing material which deforms elastically when driven over; a reinforcement and affixation strip extending along the sloping section of each ramp plate and running parallel to the lowermost edge of the sloping section, each ramp plate being affixable to the roadway surface by means inserted through each ramp plate along the reinforcement strip; a plurality of spacer plates, each spacer plate having a flat upper surface aligned with the platform sections of the ramp plates and being abuttable against the contact surface of any ramp plate; a plurality of inserts for securing the ramp and spacer plates to one another along the blunt contact surface, each of the ramp and spacer plates having recesses at corners of the contact surfaces, the recesses of abutted ramp and spacer plates forming composite recesses for receiving the inserts, whereby the lowermost edge and part of each sloping section adjacent to the lowermost edge is substantially prevented from bending and deflecting upwardly when driven over; and
,each of the spacer plates being abuttable against the contact surface of any ramp plate and abuttable against other spacer plates along any edge, abutted ramp and spacer plates being secured to one another by the inserts, whereby a plurality of inclined ramp structures may be formed by interconnection of different numbers of the ramp plates and the spacer plates in different geometrical configurations.
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Specification