Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
  • E01B9/00—Fastening rails on sleepers, or the like
  • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
  • E01B9/44—Fastening the rail on the tie-plate
  • E01B9/46—Fastening the rail on the tie-plate by clamps
  • E01B9/48—Fastening the rail on the tie-plate by clamps by resilient steel clips
  • E01B9/483—Fastening the rail on the tie-plate by clamps by resilient steel clips the clip being a shaped bar

Definitions

• the invention relates to a rail fastening by means of an elastic tension clamp made of steel bar in the form of a W, the central part of which wraps around the shaft of the hook screw anchored in a groove in the rib of the rib plate, the free ends of the tension clamp running against one another pressing onto the rail foot and the bracket parts of the tension clamp facing away from the rail base are supported on the outside of the rib of the rib plate.
• an elastic tension clamp made of steel bar in the form of a W, the central part of which wraps around the shaft of the hook screw anchored in a groove in the rib of the rib plate, the free ends of the tension clamp running against one another pressing onto the rail foot and the bracket parts of the tension clamp facing away from the rail base are supported on the outside of the rib of the rib plate.
• the rail is fastened by means of the sleeper screw, which presses eller with its screw head onto the elastic clamp made of steel bar.
• the bent ends of the clamp press on the rail foot, while the reversals of the clamp are supported against rotation on the base plate against its outer strips.
• the middle part of the clamp is arched up under the screw head and wraps around the screw shaft. When the screw is tightened, the middle part of the clamp is pressed down and, due to its central section resting on the rib of the base plate, is limited in the span of travel. This prevents the clamp from being overstressed and the base plate is screwed sufficiently firmly onto the threshold.
• the rail fastenings described meet the requirements of modern railroad operations in their operating position (assembly position), i.e. the rail fastening is suitable for ensuring good fastening of the rail foot on the wooden sleeper, even at increased speeds and increased axle loads.
• the rails are moved more strongly in the vertical direction due to the increased axle loads, although lifting of the rail foot can occur despite the tensioning forces of the bow-shaped clamps acting on the rail foot. Even when cornering, there are increased stresses on the rail due to horizontal force components which seek to cause the rail to tilt.
• the object of the invention is therefore to create a rail fastening of the type mentioned at the outset with a non-rotatable pre-mountable tensioning clamp with rear support for use on ribbed plates.
• this aim is achieved with a rail fastening according to the preamble of patent claim 1, which is characterized by the features of the characterizing part of patent claim 1. Appropriate developments of such a rail fastening result from the subclaims.
• the anti-rotation device is provided by the rear support of the tension clamp on the rib plate directly on the outer flank of the rib and additionally by contacting the free ends of the tension clamp on the inner flank of the rib. This ensures that during the transition from the pre-assembly to the assembly position, ie when the nut of the hook screw is tightened, the tensioning clamp cannot rotate in the direction of rotation and can thus assume an unfavorable position on the rail foot.
• FIG. 1 shows a cross section through a rail profile, in which the left side the rail fastening in the assembly position (tensioned position) in the outer track area
• Fig. 2 shows the top view of the rail fastening according to Fig. 1, i.e. the left side of Figure 2 in the assembly position and the right side in the pre-assembly position.
• FIG. 3 shows a plan view of the tension clamp of the rail fastening according to the invention
• Figure 4 is a side view of the tension clamp seen from the rail.
• FIG. 5 shows a section along the line V-V in Fig. 4.
• FIG. 6 is a perspective view of the tension clamp.
• FIG. 1 shows the rail fastening according to the invention in a view on the left half and in section on the right half.
• the left side shows the outside of the track in the assembly position and the right side shows the inside of the track in the preassembly position, the tensioning clamp being outside the outer edge of the rail foot 1b.
• Figures 1 and 2 show the new rail fastening on wooden sleepers.
• the rail 1 is fastened to a wooden sleeper 4 by means of an elastic intermediate layer 2 between the ribs 3a and 3b of the ribbed plate 3.
• the rib plate 3 is fastened to the wooden sleeper 4 with four Sleeper screws 5, which clamp the ribbed plate 3 to the wooden sleeper 4 by means of high-tension spring washers 6.
• the oblique position of the axis of symmetry 7 of the rail 1 prescribed by various railway administrations, e.g. 1:40, is achieved by a corresponding inclination of the surface of the rib plate between the ribs.
• a small step 8 is provided in the outside in a known manner.
• the rail 1 In the installed position, the rail 1 is held down non-positively between the ribs 3a, 3b of the ribbed plate 3 in the region of the rail foot la, lb on both sides by means of the tension clamps 9.
• the tensioning clamp 9 is shown on the left-hand side of FIGS. 1 and 2 in the assembly position, the free ends 9a to be converged pressing on the rail foot la, while the middle part 9e lies in the assembly position with a small distance a above the rail foot la.
• the tensioning clamps are tensioned by means of the hook screws 11 anchored in the grooves 10a, 10b of the ribs 3a, 3b with nuts 12 and washers 13.
• the ribbed plate 3 with the tensioning clamps 9 is already pre-assembled on the sleeper 4 in the position 9 'on the sleeper 4.
• the ribbed plate 3 is tightened on the sleeper 4 by means of the sleeper screws 5 and the tensioning clamp 9 is positioned in the position 9 'by means of the hook screw 11 of the nut 12 and the washer 13. It can be seen that the Tensioning clamp 9 'in this position is so inclined that the free arms 9a lie on the rib 3b and the middle part 9e in the unstressed state lie above and outside the free space of the rail.
• the support legs 9c of the 'tensioning clamp 9 ' facing away from the rail 1 are bent outwards and, in the top view which can be seen particularly well from FIG. 3, are shaped somewhat concavely outwards so that they can be supported on the heads of the sleeper screws 5 .
• the parts of the tension clamp 9 that wrap around the shaft of the hook screw 11, namely its central part 9e and the two lateral legs 9d, which have corresponding flats 14 in their parts that come into engagement with the washer 13, are also somewhat oblique in the preassembly position provided, wherein the hook bolt is somewhat laterally ver ⁇ and is only as far as slightly tightened in that the tensioning clamp in the pre-assembly position 9 1 aus ⁇ is just sufficiently fixed.
• the middle part 9e-9d of the tensioning clamp 9 is bent so far that the legs 9d run against one another up to a distance 15 which is less than the diameter of the shank of the hook screw - be 11. After the area of the closest approach of the two legs at the distance 15, they move away from each other again symmetrically to the center line VV, in order to then run downwards and merge into the support legs 9c, which are approximately parallel to the -1 0 -
• FIGS. 3 and 4 The somewhat complicated spatial shape of the new tension clamp can be seen particularly well when FIGS. 3 and 4 are viewed together.
• the ends 9a are shaped in such a way that when the tension clamp is pressed together it does not adhere to the head loop 9e, 9d come into contact.
• the spatial shape of the tension clamp 9 can be seen even better from the perspective illustration according to FIG. 6.
• the shape of the tensioning clamp 9 also ensures that when the hook screw 11 is tightened it cannot rotate in the direction of rotation of the nut, because during tensioning and in the mounting position the outer support legs 9c and the free ends 9a are each on the outer flank or Support the inner flank of the ribs 3a, 3b of the rib plate 3.
• the middle part 9e of the tensioning clamp is brought into the tensioning position by means of the hook screw 11 in such a way that it does not touch the rail foot 1a, 1b, but remains at a distance a. This ensures a soft spring characteristic. This is achieved by tightening the nut 12 on the hook screw 11 only to the extent that a small distance a remains between the middle part 9e and the rail base 1a or 1b. This distance ensures that the relatively hard spring characteristic of the middle part -1 1 -
• the pre-assembly position and the assembly position are characterized in that the surface of the ribs 3a, 3b of the fin plate does not come into contact with the different parts of the tensioning clamp 9. This surface of the ribs only serves as a support for the free ends 9a in the pre-assembly position 9 'of the tension clamp. When mounting, the correct positioning of the tension clamp is ensured by the outer and inner flanks of the ribs 3a, 3b of the ribbed plate 3.
• the flats 14 When mounting, the flats 14 move from their inclined position shown on the right-hand side of FIG. 1 into the horizontal position under the washer 13. To accomplish the assembly, it is sufficient to push the hook screw 11 in the groove 10 slightly inwards and tighten the nut 12 until the middle part 9e is brought into the mounting position at a distance a above the rail base 1a, 1b.
• the outwardly concave shape of the support legs 9c of the tensioning clamp 9 which can be seen particularly well from FIG. 3 and from the right-hand area of FIG. 2, allows it to be used particularly advantageously for the preassembly of the rail fastening according to the invention.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Railway Tracks (AREA)
• Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Finger-Pressure Massage (AREA)
• Train Traffic Observation, Control, And Security (AREA)
• Wire Bonding (AREA)
• Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
• Sheet Holders (AREA)
• Clamps And Clips (AREA)
• Forklifts And Lifting Vehicles (AREA)
• Fuel-Injection Apparatus (AREA)
• Drawers Of Furniture (AREA)
• Massaging Devices (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6276767

Family Applications (1)

Country Status (12)

Cited By (9)

Families Citing this family (19)

Citations (6)

Family Cites Families (8)

• 1985
  • 1985-07-25 DE DE19853526653 patent/DE3526653A1/de active Granted
• 1986
  • 1986-07-23 EP EP86904805A patent/EP0231304B1/de not_active Expired
  • 1986-07-23 WO PCT/EP1986/000433 patent/WO1987000566A1/de active IP Right Grant
  • 1986-07-23 DD DD86292801A patent/DD249059A5/de unknown
  • 1986-07-23 HU HU863667A patent/HU195862B/hu unknown
  • 1986-07-23 AT AT86904805T patent/ATE47172T1/de not_active IP Right Cessation
  • 1986-07-23 DE DE8686904805T patent/DE3666242D1/de not_active Expired
  • 1986-07-25 ES ES8601346A patent/ES2001395A6/es not_active Expired
• 1987
  • 1987-03-24 SU SU874202160A patent/SU1482536A3/ru active
• 1992
  • 1992-11-25 LV LVP-92-214A patent/LV15686D/lv unknown
  • 1992-12-08 GE GEAP1992398A patent/GEP19960346B/en unknown
  • 1992-12-15 LT LTRP241A patent/LT2264B/xx not_active IP Right Cessation
• 1994
  • 1994-11-23 MD MD95-0266A patent/MD435C2/ro unknown

Patent Citations (6)

Also Published As

Similar Documents

Legal Events