ES2364057B1 - IMPROVEMENTS INTRODUCED IN THE PATENT OF INVENTION No. P200701371 / 1 BY: ENCLOSURE SYSTEM FOR CHANGE OF NEEDLES ON RAILWAYS. - Google Patents

Abstract

Improvements introduced in the invention patent No. P-200701371/1 by: locking system for changing needles on railway tracks. # There are two bolt bodies connected by an intermediate bar and connected one of them to an external drive being in disposition transverse to the track and suspended from the respective skate of the counter needle. The slow displacement of the needles is obtained by means of a respective slide that slides inside a box linked to the body of the bolt. In the slides slide two barons and being able to establish a blockade of the barrones with the slides and the slides with respect to the boxes. # The barrel (7) is carrier of two torn recesses (17, 18) to accommodate two rollers (19 , 20) that play in transverse pocket paths (21, 22) of the slide (12). These rollers (19, 20) interact with the semi-cylindrical recesses (23, 24) of the box (8). Depending on the relative position of the rollers (19, 20), the drag of the slide (12) is obtained or not.

Description

Improvements introduced in the patent of invention nº P 200701371/1 by: "System of encerrojamiento for change of needles in railroad tracks". Object of the invention

The present invention, as expressed in the description of this specification, consists of improvements introduced in the invention patent No. P200701371 / 1, by: Locking system for changing needles on railway tracks, which have been devised for the purpose to achieve a greater smoothness in the operation, as well as an optimum precision in the positions of closing and opening of the needle, and to avoid oscillations of the needle produced to the passage of circulations.

These improvements of the invention also apply to the crossing of the movable tip. Background of the invention

Rail traffic requires lanes that move (mobile lanes or needles) for circulations to pass from one track to another, as well as moving points that move from one position to another, synchronously with the needles. Due to the requirement of these mobile lanes, the railway diversion is one of the most dangerous road sections, where the risk of derailment is high. To minimize these risks, the mobile rails (needles) must be perfectly fixed in their final positions, without being affected by vibrations and shocks caused by the circulation.

The locks used traditionally are cheap, present the problem that they need frequent maintenance and give worse performance.

An improvement of this system is the one developed in the invention patents E 00941990, E 02028920, or in E 91041200, in which the elements used in the maneuver roll, do not slide, thus minimizing efforts, in addition of not needing periodic greasing. However, applying an external force on the junction point of the two rails can be separated and only the needle is locked in the closed position. In addition, changes in track width affect your tightening.

In the main invention patent No. 200701371 a locking system is provided for changing needles on railway tracks and the crossing of the movable tip, it achieves a synchronous movement of the two needles, and also, once positioned and disappeared the force that the has driven, keeps them in that position, without being affected by vibrations and blows produced as the circulations pass.

It consists of two independent bolt bodies, one for each needle, but joined by an intermediate bar that is adjustable in length. Being independent, they can be easily disassembled and they are not affected by the variations in track width that occur and neither does the alignment and leveling between the two bolt bodies.

Each body is suspended from the skate of the counter needle (fixed rail) by means of a tie down by staples to avoid drilling said rail. To the needle (mobile lane) an appendix is attached that is integral with the skate of the same with a single hole. Dilation due to changes in the temperature of the needle causes the displacement of the needle with respect to the appendix, but the bolt allows it to be provided that the bolt-needle joint is provided by means of a rotating sheave through which the needle is made. push and drag of the needle.

The part that causes the mechanism to block is a roller that moves between two fixed positions to fit and during this movement mechanically joins two different parts called slider and barrel. When the needle is attached, that is, in contact with the counter-needle, the roller is fitted between the piece called the box and the slide. Solidarity and as it has no possibility of displacement keeps them united and fixed.

The piece called barrel is displaced by an external drive and has a recess where the roller can be housed. When that recess passes under the roller, the roller "falls" and then the slide and the box are no longer in solidarity. Therefore the needle is free and at that time the roller makes the barrel integral with the slide and as the barrel continues to move, drag the slide and it to the needle.

When the needle reaches the open position it is blocked and the roller ascends towards a recess that is in the box, again supporting the slide with the box and therefore the needle is also locked in that position.

The drive system for changing the needles can be of a hydraulic type and in this case the slide-bar assembly will act as a hydraulic cylinder when it receives fl uid from the outside and as the maneuvering and retention efforts do not usually exceed 900 Kg a low pressure circuit can be used. Description of the invention

In general, the improvements introduced in the invention patent No. P-200701371/1, by: Locking system for changing needles on railway tracks, object of the present invention, are contemplated in the structure offered by the bolt bodies.

For this, the barrel is a carrier of two recesses in which so many horizontal rollers that play in respective transverse pocket of the slide can be partially and sequentially housed, instead of only having one roller as contemplated in the main invention patent. By using this second roller, the distance that the needle moves to 160 mm is increased and also a smoothness and precision in the mechanism is achieved as we had said before.

When the rollers are housed in the recesses of the barrel, the slide moves freely inside the box, the distance between the rollers being less than that between the recesses of the box.

The two horizontal rollers set the closing and opening positions of the corresponding needle. The closing position is obtained with the barrel in the retracted position and the closing roller (the rear or outermost of the assembly) being advanced with respect to the rear recess of the barrel and within the rear recess of the box. If the barrel is advanced to change the needles, the closing roller falls into the posterior recess of said barrel and simultaneously the opening roller is forced by the barrel to move by dragging the slide until it reaches the front recess of the box, when this opening roller is forced to exit the barrel recess and stay in the front recess of the box. Further advancing the barrel the block is reached and maintained in the maximum separation of the needle from the counter-needle.

This arrangement of recesses and two rollers determines a very smooth and safe operation in both positions.

The supports that are located at the front end of the slides and integral with them, apply the needle against the counter-needle in the closed position, which is carried out through saucer springs mounted on the support and that push a fork and this in turn to a tightening roller that directly contacts the appendix to which the needle is attached. This tightening roller is mounted horizontally and can be moved vertically by rolling on a vertical plate of the appendix, thus solving the problems of needle dilation, since the carrier support of the spring of cymbals includes a coaxial annular piece of free rotation in the slide and with a radial arm that materializes the pusher piece.

In order to avoid unwanted vibrations in the passage of circulations, the solidarity needle attachment includes a lower extension where a horizontal roller is mounted that is capable of being placed under a projection of the box thus immobilizing the needle in the closed position.

It is also provided that in order to facilitate the movements of raising and lowering the horizontal opening and closing rollers during the forward or backward movement of the barrel, the recesses of the barrel are torn, therefore having greater amplitude than those of the box which are semi-cylindrical In this way the roller driven by the slider can easily fall into the rear recess of the barrel, while the opening roller is rising more easily when the front recess of the box is reached, in the advance of the barrel to reach the open locking position.

To facilitate the understanding of the characteristics of the invention and as an integral part of this specification, some sheets of drawings are attached in whose fi gures, for illustrative and non-limiting purposes, the following has been represented: Brief description of the drawings

Figure 1.-It is a cross-sectional elevation view of the track, of a needle-locking locking system that includes the improvements object of the invention, having shown the two bolt bodies coupled to the respective counter-needle and related by the intermediate tie .

Figure 2.- It is an enlarged view of one of the bolt bodies, in the locked position, where the needle is applied under pressure against the counter-needle.

Figure 3.- It is a view similar to Figure 2, in an intermediate position after starting the opening operation when advancing the barrel.

Figure 4.- It is a view similar to Figure 3 in another more advanced phase of opening.

Figure 5.- It is a view similar to Figure 3 in the final opening position with lock. Description of the preferred embodiment

Referring to the numbering adopted in the fi gures and especially in relation to Figure 1, the improvements introduced in the invention patent No. P200701371 / 1, by: Locking system for changing needles on railway tracks, which the invention proposes, they are located in the structure that each of the bolt bodies 1 and 2 has, each linked to the respective mobile rail or needle 3 and secured to the skate 4 of the respective fixed rail or counter-needle 5. Both bolt bodies 1 and 2 are joined together by the intermediate shoulder 6 which is adjustable in length and whose ends join, through a cardan, those of the barrons 7 that cross them axially. The free end of one of the barrones 7 is connected to an external mechanism to simultaneously carry out the transfer of the needles 3: one moving away from the counter needle 5 and the other approaching it.

In Figure 1 the needle on the right, governed by the bolt body 1 is in the closed position and that of the bolt body 2 in the open position. As both bolt bodies 1 and 2 are the same, although mounted in a symmetrical position and therefore formed by the same elements that work analogously and so that when one opens the other closure, the structure will be seen in detail in only one of them, just like the one on the right that is referenced with 1.

In the main invention patent this same arrangement existed, as well as the general structure of the bolt bodies 1 and 2 where the box 8 is attached which is attached to the skate 4, on one side with the clips 9 and screws 10 and on the other with the protrusion 11 formed therein.

The box 8 is tubular and in its axial emptying the slider 12 is moved, also tubular and by its bore slides the barrel 7 referred to above, connected to the mechanism of actuation of the change of needles.

In the slide 12 the support 13 is fixed, formed by a coaxial and enveloping annular piece 14 of the slide 12 and linearly anchored to its end but with free rotation; and a radial arm that materializes a pusher piece 15 to which an appendage 16 attached to the needle 3 is linked (although these joining means have not been represented because they are the conventional ones). When the slider 12 moves linearly, the needle 3 joins it in order to join or separate from the counter needle 5.

This displacement was carried out in the main invention patent with a horizontal roller that moves between two fixed positions in which it is capable of being fitted and during its displacement mechanically joins two different parts: sliding and barrel. When the needle is coupled in contact with the counter-needle, said roller is fitted between the piece called the box and the slide, making them integral. The piece called barrel is displaced by an external drive and has a recess where the roller can be housed. When that recess passes under the roller, it falls and then the slide and the box cease to be in solidarity. By continuing to advance the barrel, the roller makes the barrel integral with the slide and as the barrel continues to move, it drags the slide and this to the needle until the roller fits into the recess of the box and is forced to remain embedded in it. making the box and the slide in solidarity, blocking this position when in the final advance of the barrel the roller rests outside its recess.

In order to improve this operation and make it smoother and more precise, in accordance with the present invention it is provided that the barrel 7 bears two torn recesses 17 and 18 in which it is possible to accommodate the respective rollers 19 and 20 that play vertically in transverse pocket paths 21 and 22 of the slide 12. These rollers in turn interact with the semi-cylindrical recesses 23 and 24 of the box 8. Depending on the relative position of the rollers 19 and 20 with respect to the torn recesses 17 and 18 of the barrel 7 and of the semi-cylindrical recesses 23 and 24 of the box, whether or not the drag of the slide 12 is obtained by sliding the barrel 7 as we will see below.

Figure 2 shows the needle position attached and locked or locked, corresponding to the initial or starting position until the needle change is achieved as shown in Figure 5.

The barrel 7 which is in an extreme position (to the right) with respect to the fixed position of the box 8, prevents the closing roller 19 from falling as it is retained by resting on the cylindrical part thereof and therefore the slide 12 It is mechanically attached to the box 8 and therefore this locking or locking position is maintained because the pusher piece 15 holds the needle 3 against the counter needle 5. An elastic contact pressure is obtained because the support 13 and more specifically its piece pusher 15 acts on saucer springs 25 which in turn transmit the effort to a spring holder 26 threaded to the fork 27 that supports a horizontal tightening roller 28 which is the element that presses directly on the vertical plate 29 of the appendix 16 of solidarity needle 3, and keeps it firmly locked.

When the barrel 7 moves about 30 mm to the left (position of Figure 3) when changing needles, the closing roller 19 falls into the torn recess 17 of the barrel 7 freeing itself from the semi-cylindrical recess 23 of the box 8 and is unlocked The whole mechanism.

In Figure 4, the barrel 7 continues to advance and it is the opening roller 20 that drives the slide 12 as the closing roller 19 passes tangently to the upper wall of the box 8 and does not carry out any drag. The needle 3 continues to separate from the counter needle 5. The barrel 7 continues to move until the opening roller 20 finds the recess 24 that the box 8 has in its front area, occupying it and allowing the barrel 7 to pass underneath (see Figure 5). In this position, the needle 3 is locked again, this time in the open position.

The intermediate tie 6 that joins the two bodies of the bolt 1 and 2, transmits the movement to the second body 2, whereby it moves symmetrically to the first (when one opens the needle 3, the other closes it).

The use of saucer springs 25 in series, to press the needle 3 against the counter-needle 5, allows significant tightening efforts between these elements with little travel.

The situation of said saucer springs 25 is more advantageous than that contemplated in the main invention patent, since they were placed at the height of the slide and the pair of forces caused by the clamping between needle and counter-needle prevented the necessary displacement of the springs for proper operation. When placed in accordance with the present invention at the height of the needle 3, said pair of forces does not affect the plate springs 25.

To allow the free expansion of the needle 3 (in longitudinal direction with respect to the track and perpendicular to the plane of the attached drawings) the pusher 15 is a piece of free rotation with respect to the slide 12 as it is linked to the sleeve 14 of free spin If the needle 3 advances by dilations, drag to Appendix 16, this to the fork 27 and the fork 27 to the holder 26.

The carrier 26, which is embedded in the pusher 15 with an anti-friction bushing, draws the pusher longitudinally, forcing it to rotate. But the carrier 26, in turn, rotates inside this anti-friction bushing, so that the tightening roller 28 is always in a horizontal position by pressing on the plate 29 of Appendix 16, although it goes down rolling on it and therefore keeps the tighten between needle 3 and counter needle 5.

In the position of closing the needle (Figure 2) it can also be seen that the lower part of Appendix 1 includes a lifting roller 30 that fits under a projection 31 provided by the box 8. This prevents oscillations of the needle 3 produced at the passage of circulations.

It should also be noted that, in accordance with the invention, the tightening between the needle 3 and the counter-needle 5 is regulated by threading the fork 27 inside the holder 26 to a greater or lesser extent. In Figure 2 the holder 26 is further inserted into the pusher 15 adopting an arrangement Floating due to the elasticity of the saucer springs 25, while in Figure 5 when the needle 3 is separated, the spring holder 26 is shifted to the right by the elastic pressure of the saucer springs 25, until it stops at the closure cap 32 threaded to the mouth of the pusher 15.

Claims (7)

one.

Improvements introduced in the invention patent No. P-200701371/1 by: Locking system for changing needles on railway tracks, where there are two bolt bodies connected by an intermediate bar and one of them being operated by an external drive, in provision transverse to the track and suspended from the skate of the counter-needle or fixed rail, the respective needles moving simultaneously by means of a slide that slides inside the two boxes linked to the body of the corresponding bolt, being attached to the slides two supports linked to the needles and The aforementioned slides are made in motion by means of two barons joined by the intermediate bar and that cross them axially; said barons being able to block with them in certain positions and also the slides with respect to the boxes, characterized in that the barrel (7) is the carrier of two recesses (17, 18) in which two horizontal rollers (19, 20) that play in respective transverse pockets (21, 22) of the slide (12) being able to move freely inside the box (8) in this position.

2.

Improvements introduced in the invention patent No. P-200701371/1 by: Locking system for changing needles on railway tracks, according to claim 1, characterized in that the box (8) has two semi-cylindrical recesses (23, 24) at greater distances each other than those of the barrel (7) in which they can partially and respectively stay, fixing the closing and opening positions of the corresponding needle (3), determining the closing position in the retracted condition of the barrel (7) when being the closing roller (19) advanced with respect to the torn recess (17) rear of the barrel (7) and inside the rear semi-cylindrical recess (23) of the box (8); determining the opening position when initially advancing the barrel (7) and falling into its posterior recess

(17)

the closing roller (19) housed in the rear cylindrical recess (23) of the box (8) and continue the opening roller (20) in its torn recess (18) of the barrel

(7)

without reaching the front semi-cylindrical recess (24) of the box (8), until it is reached, it is obliged to trace the recess (18) of the barrel (7) and stay in the front semi-cylindrical recess (24) of the box (8) , thus continuing to finish the opening stroke of the barrel (7) where the needle (3) reaches the block in its maximum separation from the counter-needle (5).

3. Improvements introduced in the invention patent no. P-200701371/1 by: Locking system for changing needles on railway tracks, according to claim 1, characterized in that the supports

(13)

linked to the slides (12) and that apply the respective needles (3) against the counter-needles (5) in the closing condition, they do so through a saucer springs (25) that push a fork (27) and it to a pinch roller (28) against an appendix

(16)

needle solidarity (3).

4. Improvements introduced in the invention patent No. P-200701371/1 by: Locking system for changing needles on railway tracks, according to claim 3, characterized in that the support (13) linked to each slide (12) is a piece of free rotation with respect to this, by including an annular part (14) coaxial with a radial arm that defines the pusher piece (15) carrying the spring of cymbals (25), the clamping roller (28) being mounted horizontally on the fork ( 27) and being able to move vertically by rolling on a vertical plate (29) of the appendix (16). 5. Improvements introduced in the invention patent No. P-200701371/1 by: Locking system for changing needles on railway tracks, according to claim 4 characterized in that the appendage (16) integral with the needle (3), includes an extension bottom with a horizontal roller (30) that is likely to be placed under a projection (31) of the box (8) eliminating the vertical oscillation of the needle (3) in the closed position.

6.

Improvements introduced in the invention patent No. P-200701371/1 by: Locking system for changing needles on railway tracks, according to previous claims, characterized in that the needle squeeze (3) against the counter-needle (5) is adjustable by being the fork (27) threaded on the carrier (26).

7.

Improvements introduced in the invention patent No. P-200701371/1 by: Locking system for changing needles on railway tracks, according to claim 1 characterized in that the torn recesses (17, 18) of each barrel (7) are torn or larger amplitude than those of the box (8) to freely allow the lowering of the closing roller (19) when advancing the barrel (7) until the same roller driven by the slide (12) exceeds the rear semi-cylindrical recess (23) of the box (8); and the opening roller (20) rises more easily when reaching the front semi-cylindrical recess (24) of the box (8) when the advance of the barrel (7) continues.

SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 200801252 SPAIN Date of submission of the application: 04.30.2008 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: B61L5 / 10 (2006.01) B61L5 / 02 (2006.01) RELEVANT DOCUMENTS

Category

Documents cited Claims Affected

FOR

EN 2159705 T3 (GEC ALSTHOM TRANSPORT SA) 16.10.2001, the whole document. ES 2173623 T3 (VAE AG) 16.10.2002, column 3, line 31 - column 4, line 33; Figures 1-3. 1,2,7 1,3-5

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims • for claims no:

Date of realization of the report 04.08.2011

Examiner V. Population Bolaño Page 1/1