Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
  • E01B19/003—Means for reducing the development or propagation of noise
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B21/00—Track superstructure adapted for tramways in paved streets
  • E01B21/02—Special supporting means; Draining of rails

Definitions

• the present invention relates to a noise-reducing device of a rail for railway vehicles comprising a jacket of elastic material, said jacket comprising two parts intended to extend on either side of the rail, in particular a trolley rail, on the one hand, for wrapping the two lateral flanks of this rail, and, on the other hand, for positioning said rail in a channel formed in a solid material, in particular prefabricated or cast concrete, the elastic material being sufficiently rigid for that the two aforesaid parts can maintain the rail in position during the passage of a vehicle on the rail.
• the anti-noise device comprises fastening means comprising a removable clamping element for applying the two aforesaid parts in the channel against said lateral flanks of the rail, so as to fix the rail in the channel and release the rail in the latter by eliminating the clamping element.
• the clamping element comprises a band of reinforced elastic material positioned in a slot parallel to the lateral flanks of the rail provided in the channel on the side of one of the elastic parts opposite to that oriented towards the rail in such a way as to be able to on the one hand, be removed from the slot to release the rail and, on the other hand, be forced into the slot to secure the rail.
• the channel has side walls substantially parallel to the lateral sides of the rail, a recess oriented towards the latter being provided in each of these walls, one of the parts elastics that can penetrate into the hollow of one of these walls, the clamping element being engageable in the hollow of the other wall.
• the rail rests on a sole of elastic material located on the bottom of the channel.
• Figure 1 is a perspective view of a portion of a railway provided with an anti-noise device according to a first embodiment of the invention.
• Figure 2 is, on a larger scale, a section along the line H-II of Figure 1.
• Figure 3 is, on a larger scale, a section of the anti-noise device with a rail along the line HI-III of Figure 1.
• FIG. 4 is a perspective view of a part of the noise protection device with a rail according to the first embodiment of the invention.
• FIG. 5 is an exploded view of the device of FIG. 4.
• Figure 6 is also a section similar to that of Figure 3 of a second embodiment of the invention.
• Figure 7 is also a section similar to that of Figure 3 of a third embodiment of the invention.
• Figure 8 is also a section similar to that of Figure 3 of a fourth embodiment of the invention.
• the invention relates to a noise-reducing device for rails for railway vehicles.
• This device is housed with the rail in a channel and comprises a jacket of elastic material consisting of two parts intended to extend on either side against the two lateral sides of a rail so as to surround these flanks.
• This elastic material is sufficiently rigid and is for example formed of rubber granules bonded together by an elastomeric resin, in particular polyurethane.
• the jacket is applied with sufficient force against the flanks of the rail to hold the rail in position when a vehicle passes on this rail.
• this force is achieved by fastening means comprising a removable clamping element extending over the entire length of the rail and firmly applied against the outer face of the jacket in the direction of the flanks of the rail. Thanks to the fact that the clamping element is removable, it can be removed so as to allow the rail to be released into the channel and easily removed from the latter by keeping the jacket intact. Thus, the latter can be reused when laying a new rail.
• Figures 1 to 5 show a first embodiment of the noise protection device according to the invention.
• the jacket consists of two parts 1 and 2 separated elastic material of parallelepiped right look extending on either side of a rails 3 against the side flanks 4 and 5 of the latter.
• This elastic material is of the same nature as that referred to in the European patent
• This channel 6 is lined on either side of the rail 3 by walls 7 and
• the slot is provided in the channel 6 on the side of the elastic part 1 opposite to the one oriented towards the rail
• the walls 7 and 8 each have a hollow all along their length
• the clamping element 9 is somewhat bulging on the side faces so that this element 9 can engage in the recess 10 of the wall 7 and in a corresponding recess 10 'provided in Part 1 of the jacket.
• the elastic portion 2 enters the recess 11 of the wall 8, under the action of the clamping element 9 which engages in the recess 10 of the wall 7.
• the rail 3 rests on a sole of rigid elastic material 12 located on the bottom of the channel 6.
• the side walls 7 and 8 and the sole 12 rest on their side on a succession of rigid supports 13 spaced also bearing against the face 14 outer walls 7 and 8 opposite to that facing the rail 3.
• Concrete 23 is then cast around the walls 7 and 8 and the sole 12 so as to form the channel 6 containing the rail 3 and the two parts 1 and 2 of the elastic material of the jacket, reserving on both sides rail at regular distances from recesses 21.
• the parts 1 and 2 of the jacket and the clamping member 9 extend to the recess 21 so that in this recess 21 the rail 3 and accessible.
• the recesses 21 give, in particular, access to the rail 3 for cutting it by means of a saw and removing the rail end between two recesses after eliminating the clamping element 9.
• the recesses 21 also provide access to this element 9 so as to be able to push it out of the slot between the wall 7 and the part 1 of the jacket.
• This clamping element 9 is, in particular, manually removed with appropriate material, such as a presser foot or a lever, which is inserted into the space below the clamping element 9 and accessible by the obviously 21.
• FIG. 6 relates to a second embodiment, according to the invention, which is essentially distinguished from the first by the nature of the clamping elements 9.
• the clamping elements 9 comprise Z-shaped bearing profiles 15 threaded onto spaced vertical threaded rods 16 secured by their lower end to a base 17 on which the rail 3 is supported by means of 12.
• the profiles 15 can be moved downwards and thus act on the upper surface of the two. parts 1 and 2 of the jacket to compress and apply them firmly against the flanks 4 and 5 of the rail 3.
• An L-shaped protection profile 19 covers the upper end of the threaded rod 16 and is fixed thereto by a screw 20. Concrete 23 is then cast around the assembly formed by the rail 3 and the jacket 1 , 2 to the level of the upper surface thereof, so as to form a channel 6 containing the rail 3 with the jacket 1, 2.
• Figure 7 relates to a third form of embodiment of the invention which differs essentially from the previous embodiments in that the channel 6 has a trapezoidal cross section in such a way as to gradually narrow towards the bottom thereof and thus to present inclined flat walls 7 and 8.
• the clamping elements 9 may for example be of the same kind as in the second embodiment.
• the clamping element 9 may be formed by a flat, long and narrow profile 15 'fixed by screws 18 on the concrete edges 22 delimiting the channel 6 and protruding relative to the latter. taking support on the upper face of the jacket. As a result of the force exerted by the section 15 'on the parts 1 and 2 of the jacket they are pushed against the lateral flanks 4 and 5 of the rail 3 and the latter is held in position during the passage of a vehicle on the rail.
• Figure 8 relates to a fourth embodiment, according to the invention, which differs essentially from the first in that on each side of the rail 3 is provided a clamping element 9 and 9 '. These clamping elements 9 and 9 'are pressed in slots 24 which are in the walls 7 and 8. These slots 24 extend substantially along the median plane of the walls 7 and 8.
• the walls 7 and 8 each have, along their entire length, a recess 10 and 11 oriented towards the rail 3.
• the elastic parts 1 and 2 penetrate into the recesses 10 and 11 of the wall 7 and 8 under the action of the clamping elements 9 and 9 '.
• the rail 3 rests on a sole of rigid elastic material 12 located on the bottom of the channel 6.
• the side walls 7 and 8 and the sole 12 preferably rest on their side on a succession of spaced rigid supports, not shown in Figure 8, similar to the supports 13 shown in Figure 3. These supports also bear against the face external 14 of the walls 7 and 8 opposite that facing the rail 3. It is understood that the invention is not limited to the embodiments described above and shown in the accompanying figures.
• the parts made of elastic material can be of very varied shapes. It is the same for the other components of the noise protection device.
• the clamping element can be formed by a band of elastic material armed with a metal grid extending along the median plane of the band.
• the jacket can be formed in one piece, the two parts can, in this case, be hinged to one another so as to be able to undo the rail.
• the side walls provided in the channel on either side of the rail need not be perpendicular but may be slightly curved thus forming a hollow oriented towards the lateral sides of the rail.
• the clamping element 9 which extends in the longitudinal direction of the rail 3, as for example in the second and the fourth embodiment, can be pressed between one of the parts 1 and 2 of the jacket and one of walls of the channel 6 formed in a solid material 23, directly in contact with the solid material 23 without the presence of the side walls 7 and 8 of elastic material.
• This clamping element 9 can also be pressed into a slot 24 which is provided in the parts 1 and / or 2 of the jacket and which extends in the longitudinal direction of the rail 3.
• This clamping element 9 may be formed of a band of elastic material, but may also be made of rigid, non-elastic material.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Railway Tracks (AREA)
• Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
• Machines For Laying And Maintaining Railways (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (1)

Family

ID=37663307

Family Applications (2)

Family Applications Before (1)

Country Status (5)

Families Citing this family (2)

Family Cites Families (6)

• 2006
  • 2006-08-31 EP EP06119927A patent/EP1895054A1/de not_active Withdrawn
• 2007
  • 2007-08-31 WO PCT/EP2007/059153 patent/WO2008025854A2/fr not_active Ceased
  • 2007-08-31 CA CA002661926A patent/CA2661926A1/fr not_active Abandoned
  • 2007-08-31 BR BRPI0716388-6A2A patent/BRPI0716388A2/pt not_active IP Right Cessation
  • 2007-08-31 EP EP07803140A patent/EP2064389A2/de not_active Withdrawn
• 2009
  • 2009-03-30 NO NO20091282A patent/NO20091282L/no not_active Application Discontinuation

Non-Patent Citations (1)

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