EP0664360A1 - Montageanordnung einer Weichenzunge und einer Backenschiene auf einer Schwelle; als Unterlage dienende Auflagerung oder Tragplatte des Gleitens oder der Zunge und Biege-Feder als Bestandteil der Anordnung - Google Patents

Montageanordnung einer Weichenzunge und einer Backenschiene auf einer Schwelle; als Unterlage dienende Auflagerung oder Tragplatte des Gleitens oder der Zunge und Biege-Feder als Bestandteil der Anordnung Download PDF

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Publication number
EP0664360A1
EP0664360A1 EP95400139A EP95400139A EP0664360A1 EP 0664360 A1 EP0664360 A1 EP 0664360A1 EP 95400139 A EP95400139 A EP 95400139A EP 95400139 A EP95400139 A EP 95400139A EP 0664360 A1 EP0664360 A1 EP 0664360A1
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EP
European Patent Office
Prior art keywords
spring
needle
face
receiving
transverse direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP95400139A
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English (en)
French (fr)
Inventor
Pierre Lamy
Jean-Claude Delorieaux
Alain Macchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SNCF Mobilites
Original Assignee
SNCF Mobilites
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SNCF Mobilites filed Critical SNCF Mobilites
Publication of EP0664360A1 publication Critical patent/EP0664360A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00—Switches; Crossings
    • E01B7/22—Special sleepers for switches or crossings; Fastening means therefor
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2202/00—Characteristics of moving parts of rail systems, e.g. switches, special frogs, tongues
    • E01B2202/04—Nature of the support or bearing
    • E01B2202/042—Sliding

Definitions

  • Such a device is known in various embodiments, which have in common the fact that the longitudinal passage for receiving the spring, and this spring itself, are located under the receiving face of the needle shoe and that the the spring is bent by acting either also under this face, by inserting a pin perpendicular to the mean plane, in the passage, at the intermediate zone of the spring in order to shift the latter in the first transverse direction while its second end is in abutment in this direction on a counterpart of the base, ie opposite to the receiving face of the counter-needle shoe relative to the receiving face of the needle shoe, by shifting the second end of the spring in the second transverse direction while its intermediate zone is supported in this same direction inside the passage, by raising the second end of the spring to place it on a ge permanently provided on the base (French patent N ° 2 159 022 and its Certificate of Addition N ° 2 262 152, describing the use of a fork spring, with second double end) or by inserting a wedge shoe between the base and this second end (French patent application
  • the present invention provides a device of the type indicated in the preamble, characterized in that the passage is arranged between the bearing face and the receiving face of the counter-needle shoe and the first end zone of the spring has the shape of a hook bypassing the counter-needle shoe, on the first side of the receiving face of the counter-needle shoe, so that the second end zone of the spring is placed on the second side of the receiving face of the counter-needle shoe, and in that the means for temporarily shifting the second end zone of the spring are also located on the second side of the receiving face of the counter-needle shoe needle.
  • the arrangement of the passage requires less complex machining and in no way affects the level of the receiving face of the counter-needle shoe relative to the bearing face of the base on the cross member. .
  • the assembly and disassembly operations of the spring namely more particularly the cambering and relaxation operations thereof, must be carried out in full on the second side of the receiving face of the counter-needle shoe, by action on the second end of the spring, that is to say under entirely favorable conditions of access.
  • the passage and the temporary clamping means on the first side of the receiving face of the counter-needle shoe may be unique, and for example provided along the mean plane of the base, in an arrangement directly inspired by the known embodiments previously commented on. but, preferably, said passage and said temporary clamping means are provided in two copies, mutually symmetrical with respect to the mean plane.
  • this arrangement allows, when the passage is planned in two copies, to place these two copies at the limits of the base in the direction of a distance from its average plane, and to ensure that, if a leaf spring comes to break, it falls quickly and certainly from the pad of the counter-needle and the base, even of the cross-member, which allows to easily visualize the rupture of a spring.
  • the spring almost entirely trapped inside the passage, in the base or between it and the cross-member, can remain in place while it is broken , that is to say, no longer exercises its function of retaining the pad of the needle, so that its rupture may go unnoticed despite the dangers it entails.
  • the passage includes stop means for the spring, at least in the state of elastic camber, on the one hand in said direction perpendicular to the mean plane and on the other hand in the opposite direction to this direction, the stop means in said direction perpendicular to the mean plane being located so as to allow the extraction and introduction of the spring in the state of elastic relaxation.
  • the spring in the elastic state of relaxation can easily be extracted or introduced with respect to the passage, but it is retained in a precise position, in a direction perpendicular to the mean plane of the base, when it is at the state of elastic arching and, in particular, it cannot pivot on itself at the risk of varying the position of its supports on the base and on the pad of the counter-needle, which could modify the force applied to the latter and, in the case of vibratory phenomena, rapidly cause wear of the spring and / or the supports in question.
  • the stop means in the direction extraction can be easily dimensioned so that the bending of the spring can not be performed if they have not been fully crossed by the spring.
  • the passage and the spring to have mutual abutment means in the second longitudinal direction at least when the spring is in the state of elastic relaxation, which allows it to be brought into a precise longitudinal position, in particular as regards the support of its first end, in the form of a hook, on the pad of the counter-needle, and in the first longitudinal direction at least when the spring is in the state of elastic cambering, which prevents it from moving in this direction, which would correspond to a clearance of the pad of the counter-needle by its second end zone, in the form of a hook.
  • these mutual abutment means in the first and second longitudinal directions are located on the second side of the receiving face of the counter-needle shoe and in the second end zone of the spring, that is to say at a location where there is great freedom to give them an effective conformation, regardless of any concern for the positioning of other track components.
  • the spring has, in its second end zone, a flange projecting in the second transverse direction and the passage comprises, in an end zone located on the second side of the receiving face of the counter-needle shoe, a light for receiving said flange when the spring is in the elastic cambering state, the flange being released from said light in the state of elastic relaxation.
  • Such an embodiment also has the advantage of allowing a visualization of the position occupied by the edge of the spring with respect to the light provided for receiving it, and in particular of verifying that it is indeed facing this light immediately before the transition from the elastic expansion state to the elastic cambering state.
  • the base comprises, on the second side of the receiving face of the counter-needle shoe, a stop zone, in the second transverse direction, for the second extreme zone of the spring in the state of elastic camber, said zone stop locally delimiting the passage in the second transverse direction.
  • This spring bending technique like the spring bending techniques of the other known devices, previously commented on, has the drawback of requiring a special tool for mounting and / or dismounting the spring.
  • the means for temporarily shifting the second end zone of the spring comprise two through holes, substantially coaxial, arranged respectively in the second end zone of the spring and in the abutment zone of the base, and a bolt assembly nut engaged in these holes and acting in traction in the second transverse direction on the second end zone of the spring to attach it to the abutment zone of the base.
  • the common direction of the oblong slots constituting the holes is longitudinal, so that the T-head is placed transversely in its operating position, which makes it possible to ensure the bending of the spring on this head, in its second end zone. attached to the base stop zone in the bending position, in optimal conditions.
  • the nut is screwed onto this rod, until this nut comes to bear in the first transverse direction on the abutment zone of the base, preferably by means of a washer, and the tightening of the nut, causing the bending of the spring by displacement of its second end zone in the second transverse direction relative to the abutment zone of the base, until there is mutual abutment between these two zones .
  • the desired cambering state capable of providing a determined application force of the first end of the spring on the pad of the counter-needle, is then obtained.
  • the bolt has, in the immediate vicinity of its head, an angular section suitable for allowing, by complementarity of form, its immobilization in the slot of the second extreme zone of the spring, in the service position, against a transition to the assembly-disassembly position.
  • means are preferably provided for immobilizing the bolt-nut assembly against movement in the direction of the slots, relative to the base, which provides certainty as to the positioning, in particular longitudinal, of the head of the bolt relative to the second end zone of the spring, whatever the orientation of the aforementioned oblong slots and in particular when they are longitudinal, and makes it possible to obtain a perfectly conformation predetermined spring in the elastic cambering state and consequently the application of the desired force, with a good degree of approximation, to the pad of the counter-needle.
  • these means can consist in the fact that the base has a fitting conformation of the nut and / or of an intermediate washer supporting the latter on the abutment zone, around the mouth of the corresponding slot in the second transverse direction.
  • This conformation can result from the presence of reliefs around the mouth of the slot in the abutment zone, or even from the presence of a counterbore around this mouth.
  • the means for temporarily clamping the pad of the counter-needle, on the receiving face thereof, on the second side of this face may comprise an elastic fastener retained on the base by bolting.
  • This elastic attachment can be unique, in which case it is preferred that it overlaps the mean plane, symmetrically with respect thereto; then, if the passage and the means for tightening the pad of the counter-needle on the second side of the receiving face of the latter on the base are unique, and thus arranged along the mean plane, the same bolt-nut assembly can ensure the bending of the spring and the fixing of the elastic fastener.
  • the present invention also extends to such a base and to such a bending spring .
  • the device according to the invention 1 will be described with reference to the position it occupies when it assembles a needle 2 and a mutually associated counter-needle 3, that is that is to say forming the same half-switch, on a cross member 4, for example of prestressed reinforced concrete, itself occupying its normal position of use, and more precisely on a flat face 5 then upper of this cross member 4, as the figures show.
  • the sliding pad for example made in foundry in the form of a single piece, constituting in this example the base of the device according to the invention 1.
  • This bearing 6 has an average longitudinal plane 7 with respect to which it is symmetrical and which is oriented perpendicular to the upper face 5 of the cross member. Down, also in a direction 8 perpendicular to this face 5, it has a machined planar face or lower face 9 which is perpendicular to the plane 7, which it cuts by defining with it a longitudinal direction 10, and which is intended to rest on the upper face 5 of the cross member 4 by means of an insulating sole 11 of generally flat shape.
  • this sole 11 is elastically deformable in compression and in shear between the upper face 5 of the cross-member 4 and the lower face 9 of the bearing 6, against which it is applied flat with respective contact pressures such that mutual securing is established by friction, due to the presence of means 12, ensuring the tightening of the pad 6 in the transverse direction 8 on the upper face 5 of the cross member, by means of the sole 11.
  • the mounting of the bearing 6 on the upper face 5 of the cross member 4 via the sole 11 and thanks to the clamping means 12 is floating, allowing limited movement of the bearing 6 in all directions of its lower face 9 relative to the cross member 4, from a privileged relative position constituting the mounting position of the bearing on the cross member and the position that this bearing occupies in the absence of stress in the counter needle 3 and needle 2.
  • each lag screw 13 is coaxial with the passage respectively corresponding, in the aforementioned privileged relative position .
  • the underside 9 of the pad 6 is delimited by connection to a song 15 of indifferent contour, if not locally as will appear later, which song 15 connects this underside 9 to an upper face 16 of the pad 6, turned from generally in a transverse direction 17 opposite to direction 8.
  • the edge 15 has, in the illustrated example, when viewed in plan as is the case in FIGS. 1 and 5, a generally approximately rectangular shape, elongated in the direction 10 and essentially defined by plane facets approximately perpendicular to the underside 9.
  • the edge 15 is notably defined, in a direction 18 of the direction 10, by two plane facets 19 mutually symmetrical with respect to the mean plane 7 and forming a convex corner engaged in the direction 18 in a concave, complementary corner, of a bearing stop 20, for example made in foundry in the form of a single piece and firmly immobilized with respect to the cross-member 4, for example by means of two lag bolts 21.
  • Each facet 19 takes support on the pad stop 20 by means of a respective pad 22, elastically deformable in compression and in shear, in non-prestressed contact with the respective facet 19 and with the pad stop 20 when the pad 6 occupies the privileged position mentioned above with respect to the cross-member 4, so as to provide an elastic resistance to the displacements of the bearing 6 in the direction 18 or in a direction having u component in this direction 18 and a component in any one of two directions 23, 24 mutually opposite, perpendicular to the mean plane 7 and turned one and the other in the direction of a distance compared to this one .
  • the two buffers 22 are identical and, if we refer to the pad 6, mutually symmetrical with respect to the mean plane 7.
  • the floating mounting of the bearing 6 on the cross-member can be replaced by a conventional mounting, well known to a person skilled in the art, without providing clearance for the holes in the bearing 6 around the lag bolts 13 and in using a more rigid sole 11, as well as by eliminating the pad stop 20 and the elastic pads 22, which can be accompanied by a simplification of the shape that the edge 15 presents in the direction 18.
  • Two of the bolts 13 are located near the facets 19 defining the edge 15 in the direction 18, in the example illustrated and, in the direction 25 opposite to the direction 18, the edge 15 is defined by a flat facet 26 perpendicularly cutting the mean plane 7 and near which the two other lag bolts 13 are located.
  • the edge 15 is defined, in the direction of a distance from the mean plane 7, by two plane facets 27 mutually symmetrical with respect to this mean plane 7 and connected to the facet 26 in the direction 25.
  • each of these facets 27 is connected by the intermediary of a respective facet 20 also planar, approaching the mean plane 7 with mutual symmetry of the facets 27 relative to the latter, to a respective facet 29, plane, parallel to the mean plane 7 with mutual symmetry of the facets 29 relative to the latter, and defining the edge 15 also over approximately half of its longitudinal dimension between the facets 19 and the facet 26.
  • each facet 29 is connected, by means of a respective facet 30 also planar, moving away from the mean plane 7 with mutual symmetry of the facets 30, with respect to the latter, to a facet 31, respective, plane and perpendicular to the mean plane 7, turned in the direction 25 with coplanarity of the two facets 31.
  • Each facet 31 is connected itself, in the direction of a distance relative to the mean plane 7, to a planar facet 32 turned in this direction, with mutual symmetry of the two facets 32 relative to the mean plane 7; the two facets 32 converge towards the latter in the direction 18 and are connected respectively, in this direction 18, to a respective facet 22, slightly curved locally to present itself approximately perpendicular to the mean plane 7 at this connection.
  • edge 15 is connected only indirectly to this upper face 16 at the level of its facets 30 and of most of its facets 29, namely by means of two extensions 33, mutually symmetrical with respect to the mean plane 7 of the sole 6 and placed in cantilever in the direction of a distance from it.
  • Each of these extensions 33 is delimited in direction 18 by a plane facet 34, perpendicular to direction 1 and approximately coplanar with a respective facet 31, although turned in direction 18 and ending in direction 8 level with the limit of the respective facet 31 in the direction 17 due to the conformation of the extension 33 in the direction 8, described below.
  • Each extension 33 is moreover delimited in the direction 25 by a respective planar facet 35, perpendicular to the direction 10, turned in this direction 25 and situated so that a zone of the facet 29 remains respectively on the same side of the plane means 7, between each facet 35 and the connection of the facet 29 with the corresponding facet 30; the facets 35 are sufficiently fine, in the directions 8 and 17, to be assimilated to simple edges.
  • each extension 33 is delimited on the major part of its longitudinal dimension by a respective flat end face 36 which is connected to the facet 34 and extends in the direction 25, from this, deviating from the mean plane 7 substantially coplanarly with the facet 32 located on the same side of this mean plane 7, and over a lesser part of its longitudinal dimension by an extreme planar facet , respective, 37 which connects the face 36 to the corresponding facet 35 and extends substantially parallel to the mean plane 7.
  • each extension 33 is delimited in the direction 8, c ' that is to say towards the upper face 5 of the cross-member 4, by a respective lower face 38, the shape of which will be described later, freeing from this upper face 5 and delimiting in the direction 17 a longitudinal passage 39 , respectively open in the sen s 23 or 24 from a distance from the mean plane 7 and closed towards the latter by the respective facet 30 and most of the respective face 29.
  • each extension 33 is delimited between the facets 34, 35, 37 and the face 36, by the upper face 16 of the pad 6.
  • This upper face 16 of the pad 6 is itself formed of a juxtaposition, parallel to direction 10, of several faces turned upwards and each of which intersects the mean plane 7 perpendicularly, with respect to which it is respectively symmetrical.
  • this upper face 16 of the pad 6 in particular comprises a planar, machined face 40 for indirect, flat reception, of the pad 41 of the counter-needle 3, in a determined, fixed location, relative to the pad 6, and a flat face , machined 42 for direct reception and sliding, flat, of the pad 43 of the corresponding needle 2, juxtaposed against the counter-needle 3 in the direction 25 but occupying a variable location with respect to the latter as well as with respect to the bearing 6.
  • the receiving face 40 of the shoe 41 of the counter-needle 3 is inclined relative to the lower face 9 of the bearing 6 so as to approach it in the direction 25. It is defined respectively in the direction 25 and in the direction 18 by a respective flat side 44, 45 which is perpendicular to it as well as to plane 7 and which is rotated respectively in direction 18 or in direction 25 to constitute a stop for the shoe 41 of the counter-needle 3.
  • the two sides 44, 45 are located between the connections of the facets 29 with the facets 28 and 30, respectively, so that part of each facet 29 remains between the side and the facet 28, on the one hand , and between the sidewall 45 and the facet 30, on the other hand, and a part of each face 36 between the sidewall 45 and the facet 34 respectively associated; more specifically, the sidewall 44 is located between the facets 35 and the connection of the facets 29 with the facets 28, so that the shoe 41 of the counter-needle 3, which extends at least approximately perpendicular to the mean plane 7, forms a slight overhang in the direction 25 with respect to each facet 35.
  • this face 40 is coated with a sole 46, preferably elastic, retained for example by fitting into a counterbore 47 on the face 40, between the sides 44, 45, on the one hand, and the extensions 33, on the other hand.
  • the face 42 for receiving the shoe 43 of the needle 2 is in turn parallel to the lower face 9 of the pad 6 and essentially juxtaposed to the face 16 in the direction 25. However, it is offset upwards, that is to say in the transverse direction 17, relative to the face 40 above which it locally forms a cantilever 48 so as to get as close as possible to the core 49 of the counter needle 3, i.e. to ensure up to the immediate proximity of this core 49, a support for the pad 43 of the needle 2 downwards, while providing a passage for the pad 41 of the counter-needle 3.
  • the overhang 48 of the face 42 is connected to the flank 44 of the face 40 by a flat undercut facet 50, perpendicular to the plane 7 and essentially turned in direction 8 but deviating, in direction 18, from face 40 of which it is sufficiently spaced to leave a clearance 51 with respect to the shoe 41 of the counter-needle 3.
  • the upper face 16 of the bearing 6 further comprises two planar, machined faces 52 and 53 for receiving the clamping means 12, that is to say here lag bolts 13, these faces 59 and 53 being parallel to the lower face 9 of bearing 6 and mutually coplanar.
  • the face 52 is juxtaposed with the face 40 for receiving the shoe 41 of the counter-needle 3 in direction 10, that is to say located between the side 45 and the facets 19, and is connected in the direction 25 of a on the one hand to the facets 31, of which it constitutes the limit in the direction 17, and on the other hand to the face 40 by a substantially rectilinear rib 54, oriented perpendicular to the mean plane 7.
  • This rib 54 is delimited in the direction 25, towards the face 40, by the flank 45. It is moreover delimited in the direction 8 by the facets 34 and, between the latter, by a concave facet 55 freeing a passage for the two lag bolts 13 closest to the facets 19. In the direction 23 or 24 of a distance from the mean plane 7, it is delimited by the end faces 36 of the extensions 33 while in the direction 17, it is delimited by a face upper plane 56, perpendicular to the mean plane 7 and at least approximately parallel to the lower face 9.
  • a respective face 66 forming a part of the lower face 38 of the respective extension 33, which face 66 is substantially flat and parallel to the upper face 56 and substantially level with the face 52; between the extensions 33, it is connected in one piece to the rest of the bearing 6.
  • the face 53 is in turn juxtaposed with the face 42 for receiving and sliding the shoe 43 of the needle 2 in the direction 25, between this face 42 and the facet 26.
  • the pad 6 comprises, at the transition between its faces 52 and 40, means 57 for integral but temporary retention of the counter-needle 3 in its determined location relative to the pad 6, by tightening in the direction 8 on the face 40.
  • These means 57 respect the symmetry of the bearing 6 with respect to its mean plane 7 and comprise in the illustrated example a bolt 58 engaged coaxially in a not illustrated hole arranged in the rib 54 along an axis 59 included in the mean plane 7 and substantially perpendicular to the upper face 56 of the rib 54, and an elastic clip called ⁇ Gamma '' 60, overlapping the mean plane 7, engaged on the bolt 58 and retained in elastic support in the direction 8 on the face 56, on the one hand, and on the shoe 41 of the counter-needle 3, on the side of the flank 45, on the other hand, by a nut 61 screwed on the bolt 58 and bearing in the direction 8, on the fastener 60, by l 'Intermediate of a washer 62.
  • this type of assembly which will therefore not be described in more detail.
  • the method of clamping the shoe 41 of the needle against 3 on the face 40 on the other side thereof, that is to say under the overhang 48 of the receiving face 42 of the shoe 43 of the needle 2 is carried out by means 63 characteristic of the present invention.
  • these means 63 are provided in two copies, mutually symmetrical with respect to the plane 7, and dissociated from the means 57, but a person skilled in the art will easily understand that they could be provided in a copy, preferably arranged symmetrically relative to the plane 7, and / or be coupled to the same number of devices 57, since the single copy or each copy of the means 63 comprises, as will appear below, a bolt-nut assembly which could also ensure the mounting of '' a fastener such as the ⁇ Gamma '' fastener 60, instead of the bolt-nut assembly 58-61.
  • FIGS. 1 to 4 show the means 63 in their state of service, in which they tighten the shoe 41 of the counter-needle 3 on face 40, while FIGS. 5 and 6 illustrate their mounting or dismounting.
  • Each copy of the means 63 comprises one, respectively, of the longitudinal passages 39 which the extensions 33 leave free with respect to the upper face 5 of the cross-member 4 which, possibly, could be notched under each extension 33 to release a larger space. , vis-à-vis the underside 38 thereof, that it appears in the figures.
  • each passage 39 extends longitudinally under the face 40 for receiving the shoe 41 of the counter-needle 3, over the entire longitudinal dimension of this face 40 between the sides 45 and 44, and more precisely, in the direction 25, of a respective facet 31, delimiting the passage 39 considered in the direction 18, to define under the rib 54 an end zone of this passage 39, closed in the directions 17 and 18 thus that towards the mean plane 7, respectively by the face 66, the facet 31 and the facet 30, at a mouth 64 completely cleared in the direction 25, the direction 17 and back in the direction 18 and the direction 8 towards the face 40 receiving the shoe 41 of the counter-needle 3, by bypassing the facet 35 of the extension 33 considered, along a respective facet 29 which delimits at this level the passage 39 considered in the direction of approximation vis- opposite plan 7.
  • the lower face 38 of each extension 33 has a generally convex shape in the direction 8, defined by generatrices perpendicular to the mean plane 7. More precisely, this lower face 38 has in this direction 8, approximately halfway between the respective verticals of the sides 44 and 45, a boss 65 projecting pronounced in the direction 8, towards the upper face 5 of the crosspiece 4.
  • this shape is indifferent except that it must not impede either the introduction and the extraction, in the elastically relaxed state, or the elastic arching inside each passage 39, of a respective bending spring 67 which also forms part of the means 63 and which will now be described.
  • This flexion spring 67 in practice formed by a metal blade shaped and delimited by two mutually parallel main faces, mutually connected by a song, is disposed longitudinally in the respective passage 39 so that its main faces are oriented perpendicular to the mean plane 7 and that it has a longitudinally extreme zone 68 at the mouth 64 and a longitudinally extreme zone 69 in the immediate vicinity of the facet 31 .
  • the end zone 68 of the spring 67 has the shape of a hook bypassing the facet 35 of the respective extension 33 and the shoe 41 of the counter-needle 3, so as to form a return 70 in the direction 18, above the face 40, in order to apply elastically to the shoe 41 of the counter-needle 3 and thus to apply this shoe 41 elastically on this face 40, in the direction 8, in a state of elastic bending of the spring illustrated in FIGS.
  • the return 70 has a convex curvature in the direction 8 to apply tangentially to the shoe 41.
  • the spring 67 bears in the direction 17 against the boss 65, by a zone 173 intermediate between its end zones 68 and 69 and approximately flat so as to limit mutual contact to a generator perpendicular to the mean plane 7, and its second end zone 69, which is substantially flat, is forced to apply flat against the face 66, which thus constitutes a stop face in the direction 17 for this end zone 69, by a bolt-nut assembly 71-72, as shown in solid lines in FIG.
  • the bolt-nut assembly 71-72 thus serves to put the spring 67 in bending stress by shifting its end zone 69 in the direction 17, relative to a state of elastic relaxation, while its end zone 68 is supported in the direction 8 on the shoe 41 of the counter-needle 3 and that its intermediate zone 173 bears in the direction 17 against the boss 65, it being understood that other means could be used for this purpose without leaving it within the scope of the present invention in particular, a wedge-shaped shoe could be used for this purpose, inspired by that described in French patent application No. 92 14304 filed on 27 November 1992 by the Applicant, by means of a suitable arrangement of the sole 6, easily deductible, by a skilled person, from the lessons of this previous request.
  • the end zone 69 of the spring 67 assumed to be applied essentially flat, in the direction 17, against the abutment face 66, has a hole 73 passing through it in a axis 74 then substantially perpendicular to the face 66, and this hole 73 has the form of an oblong slot along a mean plane 75 which passes through the axis 74 and, according to the preferred embodiment illustrated, is parallel to the mean plane 7 and constitutes for spring 67 a mean plane of symmetry; each hole 73 is thus oblong in the longitudinal direction 10, it being understood that it could also be oriented differently.
  • the rib 54 is itself pierced right through with a hole 76 in the form of an oblong slot in the same direction as the corresponding oblong hole 73, that is to say ie in the longitudinal direction 10, and also having the plane 75 as a mean plane of symmetry.
  • This hole 76 thus opens, respectively in the direction 8 and in the direction 17, in the abutment face 66 and in the upper face 56 of the rib 54.
  • the shape of the holes 73, 76 is thus such that one can introduce it coaxially, by a movement in the direction 8 from the upper face 56 of the rib 54 while the spring 67 has its elastic relaxation state, in which these holes 73 and 76 are also substantially aligned, the bolt 71 which has for this purpose a T-shaped head 77 which is oriented so that it has its largest dimension longitudinally, that is to say in the plane 75, which constitutes for the head 77 an assembly-disassembly position.
  • the bolt 71 is held for this purpose by its rod 78, turned in the direction 17.
  • the rod 78 rises in the hole 76 by pulling in the direction 17 the end zone 69 of the spring 67, under which the head 77 is supported. This movement is accompanied by the bending of the spring 67 which is supported by its return 70, in the direction 8, on the shoe 41 of the counter-needle 3, and in its intermediate zone 173 on the boss 65, in the direction 17.
  • the shape of the spring 67 for example in the plane 75, and that of the lower face 38 of the extension 33 are such that there is no mutual contact in the state of elastic relaxation as in the state of elastic arching outside the boss 65, on which the spring 67 pivots during its arching, and of the face 66 in the state of elastic arching.
  • Such shapes can be easily determined by a person skilled in the art, from a large number of possibilities.
  • the spring 67 has, in the illustrated example, in the elastic rebound state as in the elastic cambering state, a generally convex shape in the direction 8 between its hooked end zone 68 and its extreme flat zone. 69, its intermediate zone 173 however preferably being approximately flat and parallel to the extreme zone 68 in the state of elastic relaxation.
  • the bolt 71 In order to oppose any tendency of the bolt 71 to rotate on itself, around the axis 74, in particular after bending the spring 67, the bolt 71 has an angular section at the connection of its rod 78 with the head 77, around the axis 74, and for example a square section suitable for enabling it to be immobilized, against rotation around the axis 74, by fitting the angular section area 80 into the slot 73 of the area end 69 of spring 67.
  • the relative position of the supports of the spring 67 on the shoe 41 of the needle 3, on the boss 65 and against the underside 66 of the rib 54, that is to say more precisely on the head 77 of the bolt 71, in the direction 8, is important so that the camber obtained by joining the end zone 69 of the spring 67 to the underside 66 of the rib 54, under the action of the bolt-nut assembly 71-72, corresponds to the application of a force of determined value, by the return 70, in the direction 8 to the shoe 41 of the counter-needle 3.
  • the spring 67 is immobilized for this purpose, in the longitudinal direction 10, in the passage 39.
  • the end zone 69 of the spring 67 has in the example illustrated an end flange 81 oriented at right angles to it and forming a projection in the direction 17 relative to it.
  • This rim 81 is set back in the direction 8, relative to the abutment face 66, when the spring 67 is in the state of elastic relaxation, and then abuts in the direction 18 inside a corridor 82 arranged for this purpose in the facet 31, receding in the direction 18 relative to the latter, and opening in the direction 17 by a lumen 83 along the face 34 of the rib 54, while, when the spring 67 occupies its support position of its end zone 69 against the lower face 66 of the rib 54, the flange 81 passes through the lumen 83 and comes to bear in the direction 25 against the face 34 of the rib 54.
  • the spring 67 is immobilized in a defined position, in the longitudinal direction, inside the passage 39 in its state of elastic relaxation, in which it abuts in the direction 18 in the channel 82, and in its state of elastic arching. , in which it is supported in the direction 25 on the face 34 and, possibly, in the direction 18 inside the corridor 82.
  • the corridor 82 and the light 83 are respectively arranged symmetrically with respect to the plane 75, which they overlap.
  • the spring 67 is immobilized relative to the sole 6, in the direction of approximation as in the direction of a distance by relative to the mean plane 7, at least when it is in the state of elastic camber.
  • the stop means of the spring 67, inside the passage 39, in the direction of a distance from the plane 7, are preferably located at the level of the return 70 in order to oppose, in fact, a tendency of the spring 67 to pivot, relative to the sole 6, around the corresponding axis 74.
  • a respective abutment pad 85 delimited, in the direction of a distance by relative to the mean plane 7, by the facet 37 and, in the direction of approximation with respect to the mean plane 7, by a facet 86 sufficiently distant from the facet 29 to allow the passage of the spring 67 between them, when the return 70 is engaged with the shoe 41 of the counter rail 3 and the flange 83 of the spring 67 in longitudinal abutment inside the passage 82 and / or against the face 34 of the rib 54.
  • the stop 85 is also dimensioned, in direction 8, so as to release vis-à-vis the upper face 5 of the cross-member 4 a space sufficient to allow passage of the spring 67, in the state of elastic relaxation, in the direction of approaching or moving away from the mean plane 7, respectively when mounting or removing spring 67.
  • each spring 67 to be introduced into the passage 39 corresponding in particular by a movement respectively in the direction of approximation or in the direction of a distance from the mean plane 7, in a particularly convenient manner.
  • a first phase of this installation consists in placing the return 70 of each spring 67 on the shoe 41 of the counter rail 3 suitably placed on the face 40 of the sole 6, however shifting the spring 67, in the direction 25, relative to the position which it must occupy longitudinally when it is in service to clamp the shoe 41 of the counter-rail 3 on the face 40.
  • Each spring 67 then in the relaxed state, is introduced into the passage 39 by a movement in the direction of approximation with respect to the mean plane 7, as shown diagrammatically by arrows 87 in FIG. 5, until they come into abutment against the stops 84 in the direction of approximation with respect to the mean plane 7 in passing, each spring 67 passes the respective stop stud 85.
  • FIG. 5 illustrates the position of a spring 67 at the end of this first step; we see in particular that the hole 73 of the end zone 69 of the spring 67 is offset longitudinally, in the direction 25, relative to the corresponding hole 76 of the rib 54 but that the spring 67 occupies its final position in the direction of a distance or approximation with respect to the mean plane 7, between the stops 84, on the one hand, and the stop stud 85, on the other hand.
  • This final position is also illustrated in dotted lines in FIG. 6.
  • a spring thrust in the direction 18, as applied to the spring 67, for example by manually acting on its hook-shaped end zone 68 schematized by an arrow 88, so as to cause it to slide, between the stops 84 and the stop stud 85, until the hole 73 of the end zone 69 coincides, coaxially, with the corresponding hole 76 of the rib 54.
  • the flange 81 engages and abuts in the direction 18 inside the corridor 82 , which defines the final position of the spring 67, in the longitudinal direction, inside the respective passage 39, as illustrated in solid lines in FIG. 6.
  • the rim 81 is further offset in the direction 8 relative to the lower face 66 of the rib 54, that is to say is released, downwards, from the lumen 83.
  • the bolt 71 is put in place as described above, then put in tension by bolting the nut 72, which gradually lifts the end zone 69 of the spring 67, by arching this one, until this extreme zone comes into abutment flat, in the direction 17, against the face 66.
  • the spring 67 then has a perfectly determined conformation, and a perfectly determined positioning with respect to the sole 6 and the shoe 41 of the counter-rail 3, to which it applies a force also perfectly determined in the direction 8.
  • the disassembly of the spring 67 is carried out by the succession of steps consisting in unscrewing the nut 72 to authorize the descent of the end zone 69 of the spring 67 inside the passage 39, which brings the flange 81 below the underside 66 of the rib 54, then rotate the bolt 71 90 ° around the axis 74, to make the direction of its head 77 coincide with that of the holes 73 and 76 and extract it from the latter, then sufficiently offset the spring 67, in the direction 25, to disengage the rim 81 from the corridor 82, then extract the spring 67 out of the passage 39 by a movement in the direction of a distance from the plane 7, with crossing of the stud stop 85 by spring 67 then in the state of elastic relaxation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP95400139A 1994-01-21 1995-01-23 Montageanordnung einer Weichenzunge und einer Backenschiene auf einer Schwelle; als Unterlage dienende Auflagerung oder Tragplatte des Gleitens oder der Zunge und Biege-Feder als Bestandteil der Anordnung Withdrawn EP0664360A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9400657A FR2715412B1 (fr) 1994-01-21 1994-01-21 Dispositif de montage d'une aiguille et d'un contre-aiguille sur une traverse; base formant coussinet ou platine de glissement ou d'aiguille et ressort de flexion formant partie d'un tel dispositif.
FR9400657 1994-01-21

Publications (1)

Publication Number Publication Date
EP0664360A1 true EP0664360A1 (de) 1995-07-26

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EP95400139A Withdrawn EP0664360A1 (de) 1994-01-21 1995-01-23 Montageanordnung einer Weichenzunge und einer Backenschiene auf einer Schwelle; als Unterlage dienende Auflagerung oder Tragplatte des Gleitens oder der Zunge und Biege-Feder als Bestandteil der Anordnung

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EP (1) EP0664360A1 (de)
FR (1) FR2715412B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19841903A1 (de) * 1998-09-11 2000-03-16 Butzbacher Weichenbau Gmbh Vorrichtung zum Befestigen einer Schiene
ES2397149R1 (es) * 2011-01-12 2013-10-14 Jez Sist S Ferroviarios S L Placa para aparatos de via de altas prestaciones

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2159022A5 (de) * 1971-10-27 1973-06-15 Heim Armin
FR2262152A2 (en) * 1971-10-27 1975-09-19 Heim Armin Rail locking system for railway points - shoe engaging rail shoe contains square section locking clip
FR2685020A1 (fr) * 1991-12-12 1993-06-18 Sncf Dispositif destine au montage d'une aiguille et d'un contre-aiguille mutuellement associes sur une traverse.
DE9211526U1 (de) * 1992-09-02 1994-01-13 Wbg Weichenwerk Brandenburg Gmbh, 14774 Brandenburg Vorrichtung zum Befestigen einer Schiene
FR2698642A1 (fr) * 1992-11-27 1994-06-03 Sncf Dispositif de montage d'une aiguille et d'un contre-aiguille sur une traverse.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2159022A5 (de) * 1971-10-27 1973-06-15 Heim Armin
FR2262152A2 (en) * 1971-10-27 1975-09-19 Heim Armin Rail locking system for railway points - shoe engaging rail shoe contains square section locking clip
FR2685020A1 (fr) * 1991-12-12 1993-06-18 Sncf Dispositif destine au montage d'une aiguille et d'un contre-aiguille mutuellement associes sur une traverse.
DE9211526U1 (de) * 1992-09-02 1994-01-13 Wbg Weichenwerk Brandenburg Gmbh, 14774 Brandenburg Vorrichtung zum Befestigen einer Schiene
FR2698642A1 (fr) * 1992-11-27 1994-06-03 Sncf Dispositif de montage d'une aiguille et d'un contre-aiguille sur une traverse.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19841903A1 (de) * 1998-09-11 2000-03-16 Butzbacher Weichenbau Gmbh Vorrichtung zum Befestigen einer Schiene
ES2397149R1 (es) * 2011-01-12 2013-10-14 Jez Sist S Ferroviarios S L Placa para aparatos de via de altas prestaciones

Also Published As

Publication number Publication date
FR2715412B1 (fr) 1996-04-12
FR2715412A1 (fr) 1995-07-28

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