JPH047202Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rail fastening device for fastening a rail to a rail support such as a sleeper slab via a track pad.

(Prior Art) In recent years, with the advancement of train signal and control technology and the development of directly connected track structures, there has been a demand for rail fastening devices for these track structures to be provided with insulation performance and gauge adjustment functions.

Therefore, the parts of each rail fastening member that come into contact with the rail support, or the contact parts of each part of the same fastening member, are equipped with insulating plates, insulating collars, insulating spring holders, insulating embedded plugs, insulating sockets, insulating anchor collars, insulating The insulation of the track is ensured by inserting various insulating materials such as bolts, and for gauge adjustment, the diameter of the rail fastening bolt hole in leaf springs, tie plates, etc. is increased to allow for more movement, and the upper surface of the leaf spring is curved. This is generally dealt with by forming a surface or using a wedge-shaped spring holder.

(Problems to be solved by the invention) The conventional rail fastening device described above involves an increase in the number of insulating members, making it difficult to design, especially for steel rail support structures such as steel sleepers and steel bridge directly connected tracks. There is a tendency to

(Means for solving the problem) The present invention was proposed to solve the above problem, and is a synthetic material in which an inverted L-shaped steel member is fitted on the inside of the rail holding piece. An anchor fitting in which the leg piece of the resin rail presser is protruded from a side part of the rail in the rail support body, and whose inner surface is formed into a wedge surface parallel to the wedge surface of the leg piece. and the rail bottom side surface, the inverted L-shaped steel member is locked to the upper surface and outer surface of the rail bottom piece, and the reaction force support piece is fitted to the upper end support surface of the anchor fitting. A rail fastening bolt is inserted and tightened across the spring clip and the anchor fitting, which are locked and proudly disposed on the top surface of the rail support and the top surface of the rail holding piece of the rail holding device. It is something.

(Function) Since the present invention is constructed as described above,
By tightening the spring clip with the rail fastening bolt, the inverted L-shaped steel member fitted to the inner rail holding piece of the rail holding tool presses the rail bottom piece via the spring clip. In this way, the rail is elastically fastened to the rail support, and the rail lateral pressure is supported by the rail holding piece having an inverted L-shaped steel member fitted between the anchor fitting and the rail bottom piece. Ru.

By pressing the rail with the synthetic resin rail press in this manner, insulation properties are imparted to the rail fastening portion. Further, since the inner surface of the anchor fitting and the outer surface of the leg of the rail holding device are formed into mutually parallel wedge surfaces extending in the longitudinal direction of the rail, the rail holding device can be moved along the anchor fitting in the longitudinal direction of the rail. The gauge is adjusted by moving and tightening the bolts. Further, the reaction force supporting part of the rail presser and the reaction force supporting surface of the anchor fitting are prevented from being pulled out of the presser.

(Example) The present invention will be described below with reference to the illustrated embodiments.

A rail 3 is laid on the sleeper 1 via a track pad 2. At a position slightly apart from the side surface of the rail 3, an anchor fitting 4 formed in a wedge surface whose inner surface is inclined at a constant angle β with the rail 3 is protruded, and the anchor fitting 4 is provided with a tip of a rail fastening bolt. A recessed portion 4a that is engaged with the other portions is provided, and a reaction force support surface 4b is formed on the inner side of the upper end surface.

Reference numeral 5 denotes a rail holding tool made of synthetic resin such as polyamide resin, the outer surface of which is connected to the anchor fitting 4.
A rail holding piece 5b is horizontally protruded from the inside of the upper end of the leg piece 5a, which is formed on an inclined wedge surface parallel to the inner wedge surface of the anchor fitting 4, and is seated on the inclined surface 4b formed on the pressure support surface of the anchor fitting 4. A reaction force support piece 5c provided with an inclined surface is provided to protrude horizontally, and an inverted L-shaped steel member 5d is integrally fitted to the rail holding piece 5b. Then, the leg piece 5a of the rail holding tool 5 is fitted into the side surface 3b of the bottom piece 3a of the rail 3 and the inner surface of the anchor fitting 4, and the above-mentioned L
The shaped steel member 5d is brought into contact with the upper surface and side surface 3b of the bottom piece 3a of the rail 3, and the reaction force support piece 5c is brought into contact with the reaction force support surface 4 of the anchor fitting 4.
b, the curved part 6a is a sleeper, and the free end of the horizontal part 6b, which is locked to the upper locking step part 1a and extends from the curved part 6a, is placed on the rail holding piece 5b of the rail holding tool 5. A nut 8 is screwed onto the main body of the rail fastening bolt 7, whose tip end 7a is locked to the missing part 4a of the anchor fitting 4, into the bolt hole provided in the horizontal part 6b of the spring clip 6 that is abutted against the bolt. Then, the rail 3 is fastened to the sleeper 1.

9 in the figure is a washer. Since the illustrated embodiment is configured as described above, the rail 3 includes the leg piece 5a and the rail presser piece 5b of the rail presser 5.
The inverted L-shaped steel member 5d is elastically fastened to the sleeper 1 through the spring clip 6, and the inverted L-shaped steel member 5d is connected to the rail 4 via the leg piece 5a. It supports lateral pressure. According to the illustrated embodiment, the rail 3 is directly fastened by the synthetic resin rail presser 5, so that insulation is imparted to the rail fastening device and the number of insulating materials is reduced. In the above embodiment, when adjusting the gauge, the rail holding device 5 is moved in the longitudinal direction of the rail using the outer wedge surface of the leg piece 5a and the inner wedge surface of the anchor fitting 4 as guides, and the rail holding device 5 is moved in the longitudinal direction of the rail. The gauge can be adjusted over a wide range by appropriately replacing the rail pressers 5 with different thicknesses of the leg pieces 5a. In addition, against the sliding of the rail 3, train vibration, and track lateral pressure, the highly rigid inverted L-shaped steel member 5d attached to the rail contacting part of the rail holding device 5 prevents the occurrence of bending. , the reaction force support piece 5c of the rail presser 5 and the reaction force support surface 4b of the anchor fitting 4 on which the piece 5c is seated are directed in the direction in which the presser 5 is pulled out. By setting the inclination angle α so as to be higher, movement and extraction of the rail presser 5 is prevented.

Figures 4 and 5 show an embodiment in which the present invention is applied to a rail fastening device with a tie plate structure, and the insulating plates and collars in conventional slab tracks can be omitted, simplifying the structure. . 1 in the diagram
0 is a tie plate, and other parts equivalent to those of the previous embodiment are given the same reference numerals.

(Effects of the invention) As described above, according to the invention, the rail can be reliably fastened with a simple configuration, and the gauge can be easily adjusted by sliding the rail holding device in the longitudinal direction of the rail. I can do it. Furthermore, by compressing the rail with a rail holding tool made of synthetic resin, it is possible to impart insulation performance to the rail fastening device, reduce the number of insulation members, and improve insulation reliability.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view showing one embodiment of the rail fastening device according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a longitudinal cross-sectional side view thereof, and Fig. 4 is a rail fastening device according to the present invention. 5 is a plan view thereof, and FIG. 6 is a front view of the anchor fitting.
FIG. 7 is a plan view thereof, FIG. 8 is a side view thereof,
FIG. 9 is a front view of the rail presser, FIG. 10 is a plan view thereof, and FIG. 11 is a side view thereof. 1...Sleeper, 3...Rail, 4...Anchor fitting, 4b...Reaction force support surface, 5...Rail presser, 5a...Leg piece, 5b...Rail presser piece, 5c
...Reaction force support piece, 5d... Inverted L-shaped steel member, 6...
...Spring clip, 7...Bolt.

Claims (1)

[Scope of utility model registration request] A rail holding piece is provided horizontally on the inside of the upper end of the leg piece, which is formed on a wedge surface whose outer surface is inclined in the longitudinal direction of the rail, and a reaction force supporting piece is provided on the outside thereof. The leg piece of the synthetic resin rail presser, into which the inverted L-shaped steel member is fitted, is provided on the inner side of the piece so as to protrude from the side part of the rail of the rail support, and the inner surface is attached to the leg piece. Fitted between an anchor fitting formed on a wedge surface parallel to the wedge surface of the piece and a side surface of the bottom of the rail, and locking the inverted L-shaped steel member to the upper surface and outer surface of the rail bottom piece, The reaction force support piece is locked to the upper end support surface of the anchor fitting, and the rail is fastened across the spring clip disposed across the top surface of the rail support and the top surface of the rail holding piece of the rail holding device and the anchor fitting. A rail fastening device characterized by being formed by inserting and tightening bolts.