JPH01198906A - Railroad crossing - Google Patents

Abstract

PURPOSE:To construct a railroad crossing speedily and easily as well as to make its maintenance and inspection so easy by stretching inverted U-shaped shape steel in its sectional form across between rigid sleepers with plural numbers of a pair of engaging grooved fittings, and attaching a shape steel side plate lower end to the sleeper fittings in between under pressure. CONSTITUTION:A railroad crossing 1 is made up of laying down a rigid sleeper 2 on roadbed ballast 3, and further clamping a pair of rails of 4a, 4b onto the rigid sleeper 2 at a regular interval, then engaging shape steel 6 with the same level as the rail 4 on the rigid sleeper 2. In the rigid sleeper 2, there are provided with plural pieces of fittings 5a, 5b with a crossing shape steel engaged groove in a face-to-face manner. On the other hand, each crossing steel, 6a-6b, is formed into an inverted U-shaped form in its section form, and it is resiliently attached to an engaging grooved fitting 5 in the state that both side plates are pressed by a hydraulic clamp. In addition, asphalt material 8 is filled up in a gap with the crossing shape steel 6 at need. With this constitution, a strong crossing structure can be built easily and speedily.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a railroad crossing at an intersection between a railway and a road.

[Prior Art] As is well known, railroad crossings are important facilities that are located at intersections between railroads and roads, and are desired to have a strong structure, a high degree of safety, and easy repair. There is.

Conventional level crossings are made of wood, concrete, or striped steel plates, but various improvements have been proposed because they are difficult to maintain, are relatively expensive to construct, and have a short lifespan. For example, JP-A No. 58-69903 discloses a level crossing structure (hereinafter referred to as invention A) that combines a buffer member and concrete blocks, and JP-A No. 60-230404 discloses a level crossing structure that combines a buffer member and concrete blocks. A railroad crossing (hereinafter referred to as invention B) is shown, which is composed of movable treads and is convenient for mechanical trackbed maintenance.

Furthermore, JP-A-60-10002 discloses a gap filling method for level crossings (hereinafter referred to as 0-A-Me), which allows easy inspection of rails and low maintenance costs, and JP-A-59-154204 The publication discloses a cushioning material for railroad crossings (hereinafter referred to as the invention) that has excellent durability.

[Problems to be Solved by the Invention] As mentioned above, conventional railroad crossings have the problems of having a short lifespan, difficulty in maintaining the trackbed, and a relatively long construction period. However, issues still remain in terms of workability, maintenance and inspection, and structural strength.

The purpose of the present invention is to be easy to construct, have excellent mechanical strength,
The objective is to provide a railroad crossing that is convenient for maintenance and inspection.

[Means for Solving the Problems] In order to solve the above-mentioned problems and achieve the object, the present invention provides a railway level crossing in which rails are placed via fastening devices, and at set intervals in the longitudinal direction. The main components are a rigid sleeper on which a plurality of pairs of metal fittings with locking grooves are placed facing each other, and a prone groove type steel in which the end edges of outward-opening side plates are elastically fitted into the locking grooves of the metal fittings. It is characterized by

[Function] The present invention provides rigid sleepers on which rails are mounted via a fastening device.
A plurality of sets of locking grooved metal fittings are installed in advance at set intervals in the longitudinal direction of the metal fittings, and the end edges of the outward-opening side plates of the prone groove type steel are inserted into the locking grooves of the locking grooved metal fittings. The main parts of the level crossing can be constructed by simply fitting them elastically, making construction extremely easy and requiring only a short construction period, as well as being structurally strong and long lasting.

Furthermore, it can be removed using simple tools, and trackbed maintenance can be carried out efficiently.

Furthermore, since the structure is simple, it is easy to fill the gap between the rail, the prone groove type steel, and the asphalt road with a desired buffer strip or filler, if necessary.

[Embodiment] Figure 1 shows a railroad crossing 1 (hereinafter referred to as a level crossing) according to the present invention.
In the schematic cross-sectional view, rigid sleepers 2 are laid on trackbed ballasts 3. In this example, a wind-strength steel sleeper is used as the rigid sleeper 2, and in this Ikemizu invention, a rigid sleeper made of concrete or a combination of concrete and iron is used. is used in the above-mentioned meaning, but the following explanation will be made using wind-strength sleepers.

Rails 4a and 4b are fastened to the wind-strength steel sleeper 2 at a set gauge distance via a fastening device (not shown). Furthermore, the winding steel sleepers 2 have set intervals (
(to be described in detail later), the locking grooved metal fittings 5a to 5h are arranged oppositely, that is, they are fixed facing each other as a pair of assembled metal fittings 5a and 5b, respectively.

The prone groove type steels 6a to 6c are the locking grooved metal fittings 5a to 5h.
It is engaged with each of the parts by elastic fitting as described below.

7a to 7e are the prone groove type steels 6a to 6e and the rails 4a, 4.
This is a reinforcing material that narrows the gap between the grooves 6a to 6e and eliminates obstacles to passage, and protects the prone groove steels 6a to 6e. In this example, deformed steels are used.

Asphalt fillers 8a and 8b are filled together with the reinforcing materials 78 to 7e so as to have the same height as the rails 4a and 4b.

2 to 4 are a front view, a side view, and a plan view, respectively, of a prone groove type steel 6a according to the present invention, and the prone groove type steel 6a is equipped with outward opening side plates 9a, 9b, and 10a, 10b are the ends thereof. It is the edge.

Since the prone groove type steel 6a is usually produced by hot rolling and has extremely strong toughness, the cylinder 12 of the hydraulic clamp 11 is actuated as shown in FIG.
When the side plates 9a and 9b of a are strongly pressed, they deform inward as shown by broken lines 9c and 9d, but within the elastic limit, they return to their original state when the pressure is removed.

That is, the separation distance T1 between the edge portion 10a and the fob is once S.
It contracts by 1+S2 and becomes T2, but when the pressure disappears, Tl
Return to

Therefore, as shown in FIG. 1, the edge portions 10a and 10b are
The locking grooved metal fitting 5 is held in the state held by the hydraulic clamp 11.
When the hydraulic clamp 11 is loosened, the prone groove type steel 6a is firmly inserted into the locking grooves of the metal fittings 5a and 5b with locking grooves, and a firm engagement is achieved. Complete. In the present invention, this is referred to as elastic fitting.

Next, the elastic fitting will be explained in more detail using different embodiments.

FIG. 6 is a partially enlarged cross-sectional view of the railroad crossing 1, in which the rail 4c is fastened to the wind steel sleeper 2 via clamps 13a, 13b and an insulating tie pad 14, and the locking grooved metal fitting 51
-5 are fixed to the clawed steel sleeper 2 at set intervals.

Further, the prone groove type steels 6r to 6h have a locking grooved metal fitting 51.
- 5k are elastically fitted into locking grooves 15a to 15d. Taking the locking grooves 15b and 15c as an example, it goes without saying that the set interval is narrower than T1 and wider than T2.

Further, lea to 16c are elastic buffer strips, such as hard rubber, and recesses 17a to 17e are provided on the upper surface in accordance with the positions of the locking grooved metal fittings 51 to 5, and the recesses 17a to 17c For installation through the bolt 18a-1
8c, it is screwed onto the locking grooved metal fittings 51 to 5k.

The upper surface of the buffer strip 1ea-18c is a prone groove type steel 6r.
It will be constructed at the same height as the top surface of ~6h so as not to become an obstruction to traffic.

In the space between the locking grooved metal fittings 51 to 5j and the rail 4C,
A removable filler such as asphalt is filled as necessary, and the recesses 17a to 17c are also filled with an adhesive filler, such as a tar-based epoxy resin, as necessary.

Since the structure of the present invention is as described above, it is extremely easy to install and remove, and the structure is sturdy and can withstand severe traffic loads.

Next, FIG. 7 is a partial cross-sectional view of a different embodiment of the present invention, showing an example in which a deformed type FF419a-19b is used as a buffer strip, and further in the figure, 20 is a reinforcing rib,
21 is asphalt pavement.

FIG. 8 is a schematic plan view of a railroad crossing according to the present invention,
Rails 4d to 4cs and lying groove type steels 6j to 6n are mounted on the sunken timbers 2a to 2e, and the buffer strips 11id to 16k are fitted into the gaps. 17d in the figure
is a representative representation of the recessed portion.

[Effect of the invention] The level crossing according to the present invention is extremely easy to construct, and
Since it is structurally strong and convenient for maintenance and inspection, it can be constructed economically and has great industrial effects.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of a railroad crossing according to the present invention, FIG.
FIG. 4 is a front view, side view, and plan view of the prone groove type steel, FIG. 5 is an explanatory diagram showing a state in which the prone groove type steel is pressed using a hydraulic clamp, and FIG. 6 is a diagram. FIG. 7 is a partial sectional view of a different level crossing according to the present invention;
The figure is a schematic plan view of a railroad crossing. 1... Railway level crossing 2... Rigid sleepers 3...
・Rail bed ballast 4a, 4b...Rail 5a~
5k... Locking grooved metal fittings 68 to 6n... Prone groove type steel 7a to 7e... Reinforcement materials 8a, 8b... Asphalt fillers 9a, 9b-...
・Side plates 10a, 10b ・”Edge portion 11・
...Hydraulic clamp 12...Cylinder 18a
, 13b... Clamp 14... Insulating tie butt 15a-15d... Locking groove lea-lee... Buffer strip material 17a-17e...
・Concave portions 18a to 18c...Mounted with bolts 19a to 19b...Deformed steel 20...Reinforcement ribs 21...Asphalt pavement Fig. 2 Fig. 3 Fig. 5 Fig. 7

Claims (1)

[Claims] A rigid sleeper on which a rail is placed via a fastening device, and a plurality of sets of metal fittings with locking grooves are installed opposite each other at set intervals in the longitudinal direction, and the ends of the outward-opening side panels are placed in the locking grooves of the metal fittings. A railroad crossing characterized in that its main component is a prone groove steel whose edges are elastically fitted.