JP2506127Y2 - Concrete sleeper lateral pressure reinforcement device for rail fastening device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a lateral pressure reinforcing device for concrete sleepers in a rail fastening device.

(Prior art) In a place where the load condition is relatively mild, such as in a straight section, because of the reason that the rail fastening structure can be relatively simplified, a synthetic polyester or the like is synthesized on the concrete sleeper surface of the rail fastening device part. The type of concrete sleepers equipped with resin-made stoppers is often used.

FIG. 5 shows a rail fastening device using this type of concrete sleepers. (A) is a concrete sleeper, (b) is a plug, (c) is a rail pad (d) on the sleeper (a). Rails (e) are spring clips composed of leaf springs, and the inner ends of the clips are rails (c).
The spring end curved portion (e '), which is pressed against the bottom of the clip and bent at the outer end of the clip, is fitted into the recess (b') formed on the outer side of the plug (b), and the spring clip ( e) and rail fastening inserted through a spring block curved portion (e ') of the clip (e) and a gauge block (f) interposed between the side edge of the bottom of the rail (c). Bolt (g)
The rail (c) is fastened to the concrete sleeper (a) by screwing and tightening on a plug (not shown) embedded in the concrete sleeper (a).

 In the figure, (h) is an adhesive.

(Problems to be Solved by the Invention) In the plug of the conventional rail fastening device, the outer rising portion (b ″) of the locking recess (b ′) with respect to the spring end curved portion (e ′) of the spring clip (e). ) Is flush with the top surface of the outer edge (a ′) of the concrete sleeper,
Since it is located lower than the lateral pressure acting line H ', when the rail lateral pressure is applied, as shown in FIG. 7, due to the moment balance condition, the outer rising portion (b ") of the receiving plug (b) is The gravity center position G of the reaction force distribution becomes lower than the lateral pressure acting position G ′,
The reaction force distribution is concentrated on the outer rising portion (b ″), and the reaction force P acts on the rail fastening bolt (g).

In this way, in the conventional concrete sleeper stopper, when the outer rising portion upper surface of the stopper is lower than the lateral pressure acting line on the rail, the reaction force is concentrated near the rising portion and the lateral pressure is large. Is likely to cause biting of the upper part of the stopper by the spring butt and wear, and if this phenomenon occurs, stress concentration will increase more and more and this tendency will be promoted, and as described above, reaction force will also occur in the rail fastening bolts. Along with the tendency to loosen, the gauge is expanded, and the spring clip rises, which makes it difficult to maintain a predetermined gauge.

In recent years, along with the speeding up of trains, the train lateral pressure increases even in the section where the conventional type concrete sleepers are laid, and rail lateral pressure reinforcement measures are required to improve the train speed. Replacing a concrete sleeper would be very expensive.

The present invention has been proposed in view of the above problems of the prior art, and the purpose thereof is to provide a rail lateral pressure reinforcement measure without changing the existing concrete sleepers without changing the rail fastening members. It is a point to provide a lateral pressure reinforcement for a concrete sleeper that can cope with speeding up of a train.

(Means for Solving the Problem) In order to achieve the above-mentioned object, a concrete sleeper lateral pressure reinforcing device in a rail fastening device according to the present invention is an outer end portion of a receiving plug attached to both sides of a rail surface of a concrete sleeper. The spring provided on the outer side of the spring clip, in which the seat bending portion is fitted in the groove formed in the rail direction, and the inner end of which is pressed against the bottom of the rail laid on the sleeper. Fit the buttocks curved portion to the seat receiving curved portion of the outer end portion of the receiving plug,
A rail fastening bolt is inserted through the spring clip and a gauge block interposed between the spring bottom curved portion of the spring clip and the rail bottom side edge, and screwed into an embedding plug embedded in a concrete sleeper. Wearing and tightening, in a rail fastening device, seated on the outer horizontal top surface connected to the outside of the groove groove in the concrete sleeper, bonded to the same surface, of the horizontal substrate in the press reinforcement tool for concrete sleepers bolted A pair of claw-shaped projections vertically extending from both ends of the inner edge in the rail direction are fitted into the recessed groove of the sleeper, and the respective claw-shaped projections are attached to the inner peripheral wall of the recessed groove, and A lateral pressure support portion formed on an inner end surface of the horizontal substrate sandwiched by the pair of claw-shaped projections is configured to abut against a rising portion of a spring-butt curved portion of the spring clip.

(Operation) As described above, the concrete sleeper lateral pressure reinforcement device is provided with a lateral force reinforcement for concrete sleepers on the outer horizontal top surface connected to the outside of the groove groove formed in the rail direction in the concrete sleeper. The horizontal board is seated, adhered to the horizontal top surface, bolted, and part of the claw-shaped projections erected from both ends in the rail direction on the inner edge of the horizontal board is fitted into the groove. , The same claw-shaped projection is engaged with the inner peripheral wall of the groove, and the inner support portion formed on the inner end surface of the horizontal substrate sandwiched by the pair of claw-shaped projections is fitted into the groove. The rail lateral pressure is securely supported together with the receiving plug through the sleeper lateral pressure reinforcing member by abutting against the rising portion of the spring tail curved portion of the spring clip.
Therefore, the extreme concentrated load on the stopper in the sleeper is reduced, deterioration of the stopper is prevented, and the spring clip is prevented from rising even if the upper portion of the stopper is slightly worn.

In this case, the lateral pressure reinforcement must counteract the train lateral pressure transmitted through the spring clip. According to the lateral pressure reinforcement of the present invention, the adhesive force between the horizontal board and the concrete sleeper surface is increased. In addition to facing each other, a pair of claw-shaped projections are hung from both ends of the inner edge of the horizontal board, and are engaged with the inner wall of the groove of the concrete sleeper and fitted in the groove of the groove. The lateral pressure resistance of the lateral pressure reinforcing tool is increased by being configured such that the curved portion of the receiving plug is narrowly attached.

Furthermore, the horizontal board is fastened to the concrete sleepers with anchor bolts through the anchor bolt through holes provided in the board, thereby strengthening the adhesive force between the sleepers and the board and by vibrating the train. The peeling of the adhesive surface is prevented.

(Embodiment) The present invention will be described below with reference to the illustrated embodiment.

(1) is a concrete sleeper, and the receiving plugs (2) are attached to both sides of the rail seating surface of the sleeper (1), and the curved portion (2a) arranged at the outer end of the receiving plug (2) is It is fitted into a groove (1a) formed in the sleeper (1) along the rail direction.

A rail (4) is laid on the sleeper (1) via a track pad (3), and an inner end portion of a spring clip (5) composed of a leaf spring is pressed against the bottom of the rail (4).
A spring butt curving portion (5a) bent at the outer end of the spring clip (5) is fitted to the curving portion (2a) of the spring clip (2), and the spring clip (5) and the same clip (5a). The rail fastening bolt (7) penetrating the gauge block (6) interposed between the spring tail curved portion (5a) of 5) and the bottom side edge of the rail (4) is the concrete sleeper (1). The rail (4) is elastically fastened to the concrete sleeper (1) by being screwed and tightened to the embedding plug embedded in the rail.

(8) is a lateral pressure reinforcement for concrete sleepers, which is seated on the outer horizontal top surface (1b) connected to the outside of the groove (1a) of the concrete sleepers (1) and bonded with an adhesive (9) The horizontal board (8a) is fitted into the groove (1a) of the sleeper (1) from both ends of the inner edge of the horizontal board (8a), and is engaged with the inner peripheral wall of the groove (1a), and the spring clip (5). Adhere tightly to both sides of the spring end curved part (5a), and sandwich the curved part (5a) 1
A pair of claw-shaped projections (8b) are provided vertically.

Further, the substrate (8a) has an anchor bolt through hole (8c).
The substrate (8a) is fastened to the concrete sleeper (1) by an anchor bolt (10) penetrating the through hole (8c).

Since the illustrated embodiment is configured as described above,
Concrete sleepers (1) in the lateral pressure reinforcement (8)
Lateral pressure is supported by a lateral pressure support portion (8d) formed on the inner end surface of the horizontal substrate (8a) adhesively fixed to the upper surface, which abuts on the spring tail curved portion (5a) of the spring clip (5). It will be.

Thus, the lateral pressure support portion (8) in the lateral pressure reinforcement (8) is
Since d) is higher than the lateral pressure acting line H ′, the center of gravity position G of the reaction force distribution is located closer to the lateral pressure acting position G ′ due to the force balance condition as shown in FIG. Force distribution is equalized, and the rising part (2b) in the curved part (2a) of the stopper (2)
The extreme concentrated load on the spring is reduced, deterioration of the member is prevented, and even if some wear occurs at the central position of the reaction force distribution, the spring clip (5) is prevented from rising.

Further, the horizontal substrate (8a) of the lateral pressure reinforcement (8) is adhered to the outer horizontal top surface (1b) of the concrete sleeper (1) through an adhesive (9), and the horizontal substrate (8) is
The inner edge of (a) is attached to the inner wall of the concave groove (1a) of the concrete sleeper (1), and is closely adhered to both sides of the curved portion (2a) of the plug (2). Since a pair of claw-shaped projections (8b) for tightly holding 2a) are vertically provided, in addition to the adhesive force between the horizontal substrate (8a) and the concrete sleeper (1) against lateral pressure, the claws It resists due to the shear resistance due to the projections (8b) and the member strength is increased.

Further, since the horizontal substrate (8a) is fastened to the concrete sleeper (1) via the anchor bolt (10), peeling of the adhesive (9) layer due to train vibration is prevented, and the adhesive effect is improved.

As described above, according to the above-described embodiment, the lateral pressure strength can be reinforced and the train speed can be increased simply by installing the lateral pressure reinforcement tool (8) on the existing concrete sleepers.

(Effects of the Invention) According to the present invention, as described above, the outside of the recessed groove formed along the rail direction, into which the receiving curved portion of the outer end of the receiving plug of the concrete sleeper is fitted. On the outer horizontal top surface that is continuous with, seat the horizontal board in the lateral pressure reinforcement for concrete sleepers, and bond and bolt together,
A pair of claw-shaped projections vertically extending from both ends of the inner edge of the horizontal board in the rail direction are fitted into the groove and are attached to the inner peripheral wall of the groove to reinforce the lateral pressure of the concrete sleeper. While firmly fixing the tool to the concrete sleeper, the inner end lateral pressure bearing portion formed between the pair of claw-shaped projections of the lateral pressure reinforcing tool was abutted against the rising portion of the spring end curved portion of the spring clip. This ensures that the lateral pressure is supported together with the receiving plug.Thus, according to the present invention, the existing concrete sleepers are not converted, and the receiving plug and each member of the rail fastening device remain in use. The lateral pressure reinforcement effect is obtained, and the track can be easily and economically strengthened for speeding up the train.

[Brief description of drawings]

1 and 2 are vertical sectional views and plan views showing a concrete sleeper lateral pressure reinforcing device according to the present invention, and FIGS. 3 and 4 are lateral pressure reinforcing devices used in the device of the present invention. Fig. 5 is a side view and a plan view of the tool, Fig. 5 is a longitudinal sectional view showing a conventional rail fastening device, and Figs. 6 and 7 are concrete plugs for conventional concrete sleepers and concrete used in the device of the present invention. It is explanatory drawing which shows the relationship between the rail lateral pressure and reaction force of the lateral pressure reinforcement for sleepers. (1) …… Concrete sleepers, (1a) …… Concave groove, (1
b) …… Outside horizontal top surface, (2) …… Receptacle, (2a) …… Bending part, (4) …… Rail, (5) …… Spring clip,
(5a) …… Spring-butt curved part, (6) …… Gauge block,
(7) ...... Rail fastening bolts, (8) …… Lateral pressure reinforcement for concrete sleepers, (8a) …… Horizontal board, (8b) …… Claw-shaped projections, (8c) …… Anchor bolt through hole, ( 8d) ……
Lateral pressure support, (9) ... adhesive, (10) ... anchor bolt.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Osamu Wakatsuki 2-8, Hikarimachi, Kokubunji, Tokyo 38 Inside the Railway Technical Research Institute (72) Shizuya Umeda 1-13, Nanyodai, Hachioji, Tokyo No. 6

Claims (1)

(57) [Scope of utility model registration request] Claim: What is claimed is: 1. A bent portion for receiving at the outer end of a receiving plug attached to both sides of a rail seat surface of a concrete sleeper is fitted in a groove groove formed along the rail direction, and an inner end is A spring butt curving portion provided on the outer side of a spring clip pressed against the bottom of a rail laid on the sleeper is fitted to a seating curving portion at the outer end of the stopper, and the spring clip and the same. Insert the rail fastening bolt through the gauge block interposed between the spring butt bending part of the spring clip and the rail bottom side edge, and screw it into the embedding plug embedded in the concrete sleeper and tighten it. In the rail fastening device, the rail direction of the inner edge of the horizontal board in the lateral pressure reinforcement for concrete sleepers, which is seated on the outer horizontal top surface connected to the outside of the recessed groove in the concrete sleeper, and is bonded and bolted to the same surface One pair hung from both ends The claw-shaped projections were fitted into the recessed groove of the sleeper, the respective claw-shaped projections were attached to the inner peripheral wall of the recessed groove, and were sandwiched by the pair of claw-shaped projections on the horizontal substrate. A concrete sleeper lateral pressure reinforcing device in a rail fastening device, characterized in that a lateral pressure support part formed on an inner end face is in contact with a rising part of a spring end curved part of the spring clip.