MXPA00012090A - Hollow tie switch assembly - Google Patents

Abstract

A hollow tie assembly for rodding associated with moveable trackwork (such as in a switch or a moveable point frog) serves the function of a tie, houses and protects throw rods, lock rods and detector rods, is adapted to accommodate North American switch machines, and does not interfere with mechanical tampers. The rodding is housed within two elongated and spaced channels which are held in predetermined spaced relationship. Switch plates straddle the flanges of each channel and the moveable rails or points are mounted on the switch plates. Rod adapters and switch clip provide a sliding connection to the moveable rails or points. The rods are made of insulating material and the switch plates and associated components include insulation to avoid cross conduction between the rails.

Description

ASSEMBLY OF TRANSFER OF ROAD WITH HORRIFIED TRAVIESA TECHNICAL FIELD OF THE INVENTION This invention relates to the construction of the railroad. In particular, the invention relates to a control mechanism for placing rails in the changes of railroad tracks or needles, mechanically driven and the movable needle crossings. BACKGROUND OF THE INVENTION The railroad changes, mechanically operated, used in North America in general use some combination of three different control rods: a scroll bar, a safety bar and an interlocking bar. The displacement bar applies forces exerted by the machine of mechanical placement of the change of way to the 0 movable rails to align them or place them in the orientation or desired location. The locking bar is used to securely or immobilize the movable rails in place after placement, while the safety bar is used to indicate the position of the movable rails REF: 125671 to automated signaling systems. The bars typically occupy two adjacent drawers, or area between the sleepers, with the displacement bar that is located in one drawer and the interlocking and safety bars that are located in the other drawer. The drawers are normally filled with ballast in the absence of these operating bars. The location of the bars in the drawers provides unobstructed access to the bars, in accordance with the Canadian Federal Rail Administration and Transportation regulations of the United States of America in relation to the construction and inspection of the road. In order to maintain such unobstructed access and to avoid interference with the operation of the bars, ballasts are not usually provided in the drawers in which the bars are located. However, the absence of the ballast results in the fastest deterioration of the geometry and stability of the track. The problem consists of the fact that the presence of the bars in the drawers prevents the tamping or mechanical tamping of the track near the bars. The inability to properly tamp or compact the ballast combined with reduced support and stability due to the lack of ballast result in the roughest bearing path, an acceleration of the track wear and the damage to the individual components of the via. Changes in ambient temperatures cause the steel rails to expand or contract with the corresponding and potentially high forces. These forces can cause the rails to move along their length through the top of the sleepers, to thereby bring the control rods attached to "" or along the rails as they are turned over. This movement can force the bars on the side of the crossbeam which results in the rubbing of the bars against the surface of the crossbeam.This rubbing causes the rapid deterioration of both the bars and the sleepers, which sometimes result in electrical short circuits in the track signals.In addition, the interference between the opening bars and the sleepers may increase the forces required for the replacement of the movable rails greater than the available force of the rails. The machine of the change of track In Europe, the changes of way usually include several bars, for example a scroll bar and two safety bars. It is known to seat the bar and the use of the ballast in the vicinity of the change of way, and to protect the bar, to seat the bar in a channel-shaped, hollow, individual metal sleeper, commonly referred to as a "hollow sleeper" . This approach results in a hollow sleeper which is relatively wide. The width of European-style hollow sleepers would interfere with the tamping equipment used in North America. The convenience of a naughty concept hollow compatible with the unique North American style of railway construction has been recognized for some time. However, to date, a practical implementation of the concept has not been achieved. A perceived problem has been that it would be required an excessively wide hollow sleeper to accommodate the scroll bar, the interlock bar and the safety bar used in the North American via construction. The sleepers are appreciably wider or deeper than the normal wooden or concrete sleepers currently used in North American road construction or sleepers that have little or no space between adjacent units will not allow mechanical tamping to be performed. In this way, any design for a hollow sleeper section should l Sm! S ^ É! ^^ - L ^ * ^ ^ -kl? * ^ -m í * m * .. * mm **. ? -miL -U. * ». **** m mr-m l a * **. *. - * . i t, go to the objective of allowing the mechanical tamping in the area of the sections of the mobile track of the way change. Other objectives in the design of a hollow sleeper mechanism to move the rails and the points include maintaining an electrical insulation between the two rails and the machine of change of way and allow the diversion of the displacement bars, the interlocking bars and the safety bars due to the thermal expansion of the rails to which the bars are attached. In addition, the hollow sleeper design must be adaptable to the details of the construction of the components for the construction of the existing road to allow upgrading, use must be made of track change machines not currently modified in railway inventories, it must be adaptable for use in multiple locations in a railway track change and must provide mechanical assistance to the bars at a multiplicity of locations within the building component of the track. The above objects are considered by the present invention, which represents a successful application of the concept of sleeper, hollow to the construction of mechanically driven railroad comprising J. r *? ... t * f? X ~ - - sliding bars, safety bars and interlocking bars. The hollow sleeper according to the invention provides unobstructed access to the bars for repair, adjustment or replacement, allows mechanical tamping near the moving rails, protects the bars during mechanical tamping operations, allows the ballast in the It also exceeds the problem of rubbing the bars against the sleepers while maintaining the mechanical details and the general geometry which are consistent with the sleepers and existing drawers.

BRIEF DESCRIPTION OF THE INVENTION According to the invention, a bar for movable rails or movable points is housed in two elongated channels which have the footprint or pressure area of a normal North American sleeper. The interlocking and security bars are housed in one of the channels, while the scroll bar is housed in the other channel. The two channels are sufficiently separated so as not to interfere with the tamping machines or mechanical tamping machines. The maneuver or seat plates of the needle are mounted on the projections of each channel and the movable rails or points are mounted on the maneuver or seat plates of the needle. Bar adapters and track change fasteners provide a sliding connection to rails or moving points. The bars are made of insulating material and the maneuver or seat plates of the needle and associated components include an insulation to prevent cross conduction between the rails. In one of its aspects, the invention comprises a hollow sleeper assembly for a bar construction of the track comprising two elongated channels in a parallel relationship, separated, each of the channels having a base and side walls, each of the channels having a bar disposed therein and at least one plate that extends transversely and is secured to both channels. In another aspect of the invention, the base of the channels has a width no greater than 38.1 centimeters (15 inches) and the center lines of the channels are not less than 50.8 centimeters (20 inches) apart. An assembly as in claim 1 wherein at least one plate comprises a maneuver or needle seat plate and a handle or crank handle plate, each one extending transversely and secured to both channels due to that maintains a separate relationship between the channels. In another aspect of the invention, the scroll bar and the interlock bar are made of a non-conductive material. In yet a further aspect, an isolation pad is provided between the maneuver or needle seat plate and the channel. In another aspect of the invention, bar adapters and fasteners are provided of the way change are slidably secured to the bar adapters by means of a telescopic or slidable joint. Other aspects of the invention will be appreciated by reference to the detailed description of the preferred embodiment and by reference to the claims.

BRIEF DESCRIPTION OF THE DRAWINGS The preferred embodiment of the invention will be described by reference to the drawings in which: Figure 1 is a perspective view of the assembly according to the invention; 25 ^^ a ^ jl¡É É »j? S ^ gÍaÉ? í ^ ^ _ ^ ^ ii_jaaa - íajiA-Í ^^ ..? .mmmm * í * -m -, **** - *,. -a to V *, -, * -? X * l, j j Figure 2 is a cross-sectional view of two channel-shaped sleepers and a maneuver or needle-seat plate mounted therein according to the invention; Figure 3 is a perspective view of the assembly according to the invention, which also shows the relative positions of the stock rail and the change of track. Figure 4 (a) is a perspective view of a scroll bar adapter according to the invention: Figure 4 (b) is a perspective view of an interlock bar adapter according to the invention; the Figure. 5 is a cross-sectional profile view 20 of a bar guide according to the invention; Figure 6 is a perspective view of the displacement bar assembly according to the invention; 25 Figure 7 is a side elevation of the displacement bar assembly according to the invention; Figure 8 is a perspective view of the interlocking and safety bar according to the invention; Figure 9 is a front view of a roller or tamping machine, a holding arm and a safety bar connection according to the invention; Y, Figure 10 is a front view of the gear change assembly according to the invention taken from the end of the mounting crank.

DETAILED DESCRIPTION OF THE BEST MODE AND THE PREFERRED MODALITY OF THE INVENTION With reference to Figure 1, the assembly of the complete track change according to the invention is designated by the number 10. The two steel sleepers, hollow, channel-shaped 12, 14 are arranged in a parallel relationship, »£ * & * & Í i: afttJft-talrt? Ifaf -separada. A locking bar 16 a safety bar 18 are located in the channel of the crossbar 12 while the displacement bar 20 is located in the channel of the crossbar 14. As illustrated in FIG. 2, the crossbars 12, 14 they comprise a channel 22 defined between a flat base 24 and the tapering side walls 26, 28 extending upwardly from the base 24. The upper edges of the sides 26, 28 are bent into the flat projections, which extend outwards 30, 32. The projections 30, 32 are provided with separate holes to secure the other components of the assembly 10 to the sleepers. The projections 30, 32 do not extend the entire length of the sleeper. Preferably, projections are not provided for a short distance from one end 36 of the sleeper. This distance must be at least the longitudinal degree of the maneuver or needle seat plate 38 which is described in more detail below. In addition to the absence of the projections, the non-projecting portion of the cross member has side walls 40, 42 that are shorter than the side walls 26, 28. As a result, the height of the portion without projections of the cross member is reduced in relation to the rest of the sleeper. The anterior profile of a hollow sleeper is known in the prior art in relation to the use of a hollow, single sleeper in asation with an individual rod. According to the invention, both pass through 12, 14 are formed as identical parts such that with the perforation and the appropriate plate joining their formed parts can be used interchangeably to seat the displacement bar or the safety and locking bars. The same structure of the sleeper can also be used for the support bars because of this mechanical tamping and use of the ballast is allowed near the support bars. The sleepers 12, 14 according to the invention are made a maximum of 38.1 centimeters (15 inches) wide in their widest area with the central lines spaced no less than 50.8 centimeters (20 inches) to accommodate the paddles of the roller or tamping of the mechanical tamping equipment. Preferably, the widest area is not greater than 35.56 centimeters (14 inches) in width to avoid damage to the paddles of the unbalanced roller or tamping machine. With reference again to Figure 1, the four operating or seat plates of the needle 44, 46, 48 and 50 are mounted on the crosspieces 12, 14. Each of the crossbeams has two operating or seat plates of the needle for locating the assembly in relation to each of the two stock rail 52, 54. The relative position of the stock rail and the 5 handle or needle seat plates is best illustrated in Figure 3. Each plate of maneuvering or needle seating includes a shoulder 56 for the junction of the stock rail and a second shoulder 58, recessed from the highlight 56, for the securing of the rail brace thereto (not shown). Each maneuver or needle seat plate is secured to the sleeper by means of rivets, screws, Huckbolts (trademark) or other mechanical fasteners 60 extending through of each corner of the track change plate as well as through the underlying projections 30, 32. Each maneuver or needle seat plate includes a slot 62, the width of which corresponds approximately to the width of the channel 22 between the projections 30 and 32. The groove 62 is provided to allow the adapter rod 64, 66, 68, 70 extend as close as possible to the network of the rails while the need is avoided by adapters unduly long to reach transversely the width of the operating plate or needle seat. The plate of the operating lever 38 is mounted transversely to the non-projecting portion of the cross-member 14. When the non-projecting portion of the cross-member is of reduced height relative to the rest of the cross-member, this allows the lever plate The maneuver 38 is seated completely down such that when a track changing machine is attached to the maneuvering lever plate, the complete assembly presents a more airtight profile. As best seen by reference to Figure 2, the plate operating lever 38 includes an upper, flat 72 portion and two portions of rod extending down 74, 76 15 which are spaced to fit tightly against the interior of the side walls 26, 28 of the tie rod 14. the portions 74, 76 are designed to fit against the interior of the side walls preferably against its exterior for 20 maintain a tighter profile for the entire assembly 10 and the crosspieces 12 14. The maneuver lever plate 38 includes the arms 75, 77 extending laterally towards the cross-member 12. Each arm 75, 77 terminates in a sharply angled projection 25, the angle corresponding to the yfo ?? A = ^^^^^^^^ ^^ fcjg jgjjfrg ^^^^ g ^ ji ^ ^^^^^^^^ i ¿angle of the side wall 26 of the crossbeam 12 relative to the vertical. Outgoing 79 are mechanically fastened through the side wall 26 by rivets, screws, or other mechanical Huckbolts to ensure that fasteners because the crosspieces 12, 14 in a separate, predetermined relation to each other. A crank control plate 118 is also mounted transversely to the crosspieces 12, 14 at the end 80 of the crosspieces which is distant from the end without projections 36. These serve to keep the crosspieces 12, 14 separated by a predetermined distance. As in the case of switching plates or needle seat, the actuating crank plate is secured to the protrusions 30, 32 by means of rivets, screws, or other mechanical fasteners Huckbolts. A pair of longitudinally spaced guides 82, 84 are provided in the cross member 12 and a second pair of guides 86, 88 is provided in the cross member 14. As shown in Figure 5, each guide includes a support portion 90 extending transversely and it is secured to the projections 30, 32 and legs extending towards bend 92, 94 are adapted to form a guide or slide to restrict the lateral displacement of the bars perpendicular to the longitudinal axis of the section of the hollow crosspiece. As is known, a lost motion device 96, commonly referred to as a basket, may be associated with the scroll bar. The basket makes it possible for a guard or signal maintainer to adjust to both the displacement and the total travel of the bar to account for the difference in bar design applications and the total joint length of the bar and to compensate for the difference of the design locations of the machine of change of road to the movable rails. In the prior art, the basket has been placed between the rails. Placing the basket between the rails results in limited accessibility due to the hot air ducts used for snow removal that are frequently mounted between the rails on top of the basket. In addition, the guard or signal maintainer must position itself in the direct path of the incoming rail traffic for service or adjustment to the device. However, according to the preferred embodiment of the invention, preferably to be located between the rails, the basket is located on the outward side of the rails as illustrated in Figure 3. This provides greater ai. accessibility without requiring the removal of hot air ducts or other physical equipment, or placing the guard or signal maintainer next to the direct path of a train while adjusting or 5 serving the device. With reference to Figure 6, one end 98 of the displacement bar 20 is attached to a connecting rod 100 by means of a seal plate 104. The connecting rod 100 is in turn connected to the basket 96.

The basket 96 is in turn connected to the axis 102 of a track diverting machine (not shown). The basket 96 is arranged to be parallel to the longitudinal axis of the displacement bar 20 but vertically offset relative thereto. This allows the operator an access relatively easy to the basket for adjustment purposes, without being hindered by the basket that sits too deep in the channel 22. With reference to Figure 6 and Figure 7, the end 106 of the displacement bar 20 is attached to a driving rod of the crank 108 by means of a deflection adapter 110. The driving rod of the crank 108 and the deflection adapter 110 are located in the channel 22. The driving rod of the crank 108 is joined by half of a clamp 112 to arm of the crank 114 which is connected to the shaft 116.

The shaft 116 extends through the operation plate of the crank 118 to the arm of the crank 120. With reference to Figure 6, the displacement bar 20 includes two adapters of the bar 5 64, 66. The adapters 64, 66 are located in the portions of the scroll bar which are adjacent to the track change rails. Adapters are secured to the bar by means of rivets, screws or Huckbolts 122 in a possible combination with cement, which extend through a U-shaped portion 121 of the adapter, which is mounted on the bar. A track change holder 124 is attached to the upper end of the adapter. The changeover bracket 124 includes a horizontal portion and a vertical portion. The horizontal portion includes a slot 125 that is parallel to the longitudinal axis of the rails (i.e., transverse to the longitudinal axis of the sleepers). A bolt 126 extends downward through a C-shaped arm 128 of the adapter and a through the slot 125. This provides a telescopic or sliding joint that allows relative, limited movement between the "track change rail and the bar." The vertical portion of the track change holder 124 is provided with holes to receive the holes. screws that extend through the rail network of the change of track, due to this the rail of the change of track to the displacement bar 20 is secured. Returning now to the locking bar 16 as shown in Figure 8, one end is connected to an interlocking drive rod 130. The interlocking bar 16 includes two bar adapters 68, 70 which are located in the portions of the locking bar, which are adjacent to the track change rails. These are secured to the bar by means of screws that extend through a U-shaped portion of the adapter that is mounted on the bar. The detent arm 132 is attached to a U-shaped top end of the adapter and is provided with a laterally elongated slot for receiving a pin 133. This allows the lateral, relative sliding movement of the track change rails and the change of way assembly. The holes 134 are provided in the retaining arm to receive the screws that extend through the movable rail. The provision of the slide joints in the track change fasteners 124 and the retainer arms 132 is particularly useful for complete, larger track changes where the longer lengths of the rail involved have a greater capacity for expansion and thermal restriction.

The adapter 68 includes a laterally extending shoulder 69 which is provided with a threaded hole 71 for receiving the end of the safety bar 18. The specific aspects of the hollow sleeper according to the invention are directed to prevent electrical conduction between the rails through the hollow sleepers. In the prior art, the electrical conduction through the bars is typically avoided when manufacturing the bar in multiple short lengths and connecting the individual components using a coupler that includes an electrically insulating material. As best illustrated in Figure 1, the invention includes an insulation pad 142 which is interposed between the plates of the sleepers and the projections of the hollow sleepers. Screw sleeves with electrically insulating protrusions 144 extend through the holes in the sleeper plate and through the protrusions of the hollow crossmember 30, 32. Furthermore, in the invention, the latch bar and the latch rods Displacement are made completely from an electrically insulating material. In the preferred embodiment, the bars are made of tensioned, insulating fiber. The connection of the sliding bars, the interlocking bars and the safety bars to the movable rails is arranged so that the adapters of the bar and the fasteners of the change of track are suspended above the bottom of the section of the crossbar hollow effectively preventing any contact with the sleepers and an electrical short circuit. In this way, due to the large air opening, and the fact that the bars are made of insulating material, electric conduction is prevented between l '<- Movable rails and sections of the hollow crossbeam through the changeover fasteners. The hollow sleeper of the present invention is not limited to the use in the change of way but can also be used in another mobile construction such as the crossing of moving needles. It will also be appreciated by those skilled in the art that while the preferred embodiment of the invention has been described in detail, variations can be practiced. preferred embodiment without departing due to that of the scope of the invention, scope that is reflected in the foregoing description and the following claims.

It is noted that in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects to which it relates.

Having described the invention as above, property is claimed as contained in the following:

Claims (16)

1. A hollow sleeper assembly for a bar of the construction of the track, characterized in that it comprises: two parallel, elongated channels; at least one rigid plate interconnecting the channels and maintaining a predetermined spacing between them, equivalent to the normal separation between the sleepers of the rail in the vicinity of a change of track. each of the channels having a base and side walls and having at least one track change bar disposed therein.

2. An assembly according to claim 1, characterized in that a displacement bar is disposed in the first of the channels and a locking bar is disposed to the second of the channels.

3. An assembly according to claim 1, characterized in that the base has a width not exceeding 38.1 centimeters (15 inches) and center lines spaced no less than 50.8 centimeters (20 inches).

4. An assembly according to claim 2, characterized in that it also comprises a safety bar arranged in the second channel.

5. An assembly according to claim 1, characterized in that at least one plate comprises a lever lever plate and a lever plate of the crank each of which extends transversely and is secured to both channels due to that a Separate relationship between channels.

6. An assembly according to claim 2, characterized in that the displacement bar and the locking bar are made of a non-conductive material.

7. An assembly according to claim 6, characterized in that each of the channels further comprises at least one maneuver or needle seat plate secured to the channel and an isolation pad between the maneuver or needle seat plate and the channel.

8. An assembly according to claim 7, characterized in that the displacement bar and the locking bar each have an end attached to a movable rail by means of a bar adapter and the bar adapter is suspended out of direct contact with the channel.

9. Assembly according to claim 7, characterized in that the operating or seat plate of the needle is secured to the channel by means of screws that extend through the channels. 15 insulation sleeves.

10. An assembly according to claim 2, characterized in that it also comprises a motion loss device attached to the bar 20 and arranged near one end of the first channel.

11. An assembly according to claim 10, characterized in that the device 25 of loss of movement has a longitudinal axis and the ^ ßgj ^^^ j ^ ß ^ g ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^ ld ^ a ^^^^^^^^^^^^^^^^^^^^^^^^^ J ^ l longitudinal axis is parallel to, but deflected vertically in relation to the longitudinal axis of the bar of displacement.

12. An assembly according to claim 2, characterized in that it also comprises two bar adapters that connect the displacement bar to a means for joining to at least one movable rail or a movable point.

13. An assembly according to claim 12, characterized in that the adapters are slidably secured to a holder of the change of track which in turn is adapted to be secured to a movable rail and the sliding securing is achieved by means of a telescopic joint or sliding between the adapter and the track change bracket.

14. A hollow sleeper assembly for a rail of the construction of the track, characterized in that it comprises two elongated channels separated in a parallel relationship, separated each of the channels having a base and the side walls, and projections extending outward in the upper edges of the side walls; a scroll bar arranged on the first of the channels; an interlocking bar and a safety bar arranged in the second of the channels; at least two maneuver or needle seat plates, each of the maneuver or needle seat plates that are associated with one of the channels and extend transversely to the projections extending outward from its channel associated; a first bar adapter attached to one end of the slide bar, the bar adapter extending up the end of the bar to the level of a first operating or needle seat plate associated with the channel that contains the scroll bar and to define an upper end of the bar adapter, the upper end of the bar adapter that is adapted for the sliding connection to a 1-way change holder; a second bar adapter attached to the slide bar, the bar adapter extending upwards from the bar to the level of a second maneuver or needle seat plate associated with the channel containing the scroll bar and to define a top end of the bar adapter, the upper end of the bar adapter that is adapted for the sliding connection to a rail change fastener; a maneuvering lever plate which extends through at least one of the channels and which is secured to both channels; at least one guide bar mounted on the first channel to keep the scroll bar out of contact with the side walls; and, a motion loss device attached to the other end of the scroll bar, the other end of the scroll bar that is located on the outside of the rails.

15. An assembly according to claim 14, characterized in that it also comprises a maneuver lever plate which extends over and is secured to both channels. - ^^^^^^^^^^^^^^ g ^ áA ^? m ^ m ^ m ?? uááá. , to Ssi *. i. ** »M« .a * .- »». * ^ »* * ^ * ¿- * ^

16. An assembly according to claim 2, characterized in that it further comprises a maneuvering plate or needle seat secured to each channel, the maneuvering or needle seating plate having generally a U-shaped groove that is extends between the side walls and which is adapted to accommodate a portion extending upwardly of a bar adapter in the slot. ^^ j ^ ^^ S ^ ^^^^^^^^^ a ^^^^^^^^^^^^^^^^^^ & aa gi ^