JPH0465922B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a level crossing at the intersection of a railway and a road.

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

Conventional railroad crossings are made of wood, concrete, or striped steel plates, but it is difficult to maintain the trackbed, construction costs are relatively high, and the lifespan is short, so improvements have been proposed. For example, JP-A-58-69903 discloses a level crossing structure (hereinafter referred to as Invention A) that combines buffer members and concrete blocks, and JP-A-69903 discloses
Publication No. 230404 discloses a level crossing (hereinafter referred to as the B invention) which is composed of a fixed level crossing and a movable tread and is convenient for mechanical trackbed maintenance.

Furthermore, JP-A-60-10002 discloses a method for filling between level crossings (hereinafter referred to as invention C), which allows easy rail inspection and low maintenance costs;
Publication No. 154204 discloses a cushioning material for railroad crossings (hereinafter referred to as invention D) 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.

An object of the present invention is to provide a railroad crossing that is easy to construct, has excellent mechanical strength, and 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 is a railroad crossing, in which rails are placed via fastening devices, and the rails are placed at set intervals in the longitudinal direction. A rigid sleeper with multiple sets of locking grooved metal fittings placed opposite each other,
The present invention is characterized in that a prone groove type steel, in which the end edges of the outwardly opening side plates are elastically fitted into the locking grooves of the metal fittings, is provided at the rail height.

[Operation] The present invention provides a rigid sleeper on which a rail is mounted via a fastening device, and a plurality of sets of metal fittings with locking grooves are provided in advance at set intervals in the longitudinal direction of the sleeper, and the locking grooves The railroad crossing can be constructed by simply fitting the end edges of the outward-opening side plates of prone groove steel into the locking grooves of the attachment fittings, making construction extremely easy, shortening the construction period, and improving the structure. It is sturdy and has a long lifespan.

It can also be removed using simple tools, and trackbed maintenance can be carried out efficiently.

Furthermore, since the structure is simple, it can be used as needed between rails, prone groove type steel, and asphalt roads.
In addition, it is easy to load desired buffer strips and fillers.

[Example] FIG. 1 is a schematic cross-sectional view of a railway level crossing 1 (hereinafter referred to as a level crossing) according to the present invention, in which rigid sleepers 2 are laid on trackbed ballasts 3. In this example, a clawed steel sleeper is used as the rigid sleeper 2. In addition, in the present 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 a clawed steel sleeper.

Rails 4a and 4b are fastened to the clawed steel sleeper 2 with a set gauge distance therebetween via a fastening device (not shown). Furthermore, the clawed steel sleepers 2 are provided with set intervals (described in detail later) in the longitudinal direction,
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 6e are the locking grooved metal fittings 5.
They are engaged with each of a to 5h by elastic fitting as described later.

7a to 7e are reinforcing materials that narrow the space between the prone groove steels 6a to 6e and the rails 4a, 4b, etc. to eliminate obstacles to passage, and protect the prone groove steels 6a to 6e. It is used.

Reference numerals 8a and 8b are asphalt filling materials, which are filled together with the reinforcing materials 7a to 7e so as to have the same height as the rails 4a and 4b.

Figures 2 to 4 show a prone groove type steel 6a according to the present invention.
In the front view, side view, and plan view, respectively, the prone groove type steel 6a is equipped with outward-opening side plates 9a, 9b, and 1
0a and 10b are the edge portions thereof.

Since the prone groove type steel 6a is usually manufactured by hot rolling and has extremely strong toughness, the cylinder 12 of the hydraulic clamp 11 is actuated as shown in FIG. When pressed strongly, it deforms inward as shown by broken lines 9c and 9d, but within the elastic limit it returns to its original state when the pressure is removed.

That is, the separation distance T ₁ between the edge portions 10a and 10b is temporarily reduced by S ₁ +S ₂ to T ₂ , but returns to T ₁ when the pressure is removed.

Therefore, as shown in FIG.
is inserted into each of the locking grooves 5a and 5b, which will be described later, while being held down by the hydraulic clamp 11, and then when the hydraulic clamp 11 is loosened,
The prone groove type steel 6a is firmly fitted into the locking grooves of the locking grooved fittings 5a, 5b to complete a firm engagement. In the present invention, this is referred to as elastic fitting.

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

Figure 6 is a partially enlarged sectional view of level crossing 1, with rails 4c
is fastened to the clawed steel sleeper 2 via clamps 13a, 13b and insulating tie pads 14,
The locking grooved metal fittings 5i to 5k are fixed to the clawed steel sleeper 2 at set intervals.

Further, the prone groove type steels 6f to 6h are the locking grooves 15a to 15 provided in the locking grooved metal fittings 5i to 5k.
d is elastically fitted. Therefore, the locking groove 15b,
Taking 15c as an example, it goes without saying that the set interval is narrower than _T1 and wider than _T2 .

Reference numerals 16a to 16c are elastic buffer strips, such as hard rubber, and metal fittings 5i to 16c have locking grooves on the upper surface.
Concave portions 17a to 17c are provided at positions 5k, and are screwed onto the locking grooved metal fittings 5i to 5k by mounting bolts 18a to 18c passing through the concave portions 17a to 17c.

The upper surfaces of the buffer strips 16a to 16c are configured to be at the same height as the top surfaces of the prone groove type steels 6f to 6h so as not to obstruct traffic.

The spaces between the locking grooved metal fittings 5i to 5j and the rails 4c are filled with a removable filler such as asphalt as needed, and the recessed portions 17a to
17c is also filled with an adhesive filler, such as a tar-based epoxy resin, if necessary.

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

Next, FIG. 7 is a partial sectional view of different embodiments of the present invention, in which deformed steels 19a to 1 are used as buffer strips.
9b is shown, and further in the figure, 20
21 is a reinforcing rib, and 21 is an asphalt pavement.

FIG. 8 is a schematic plan view of a level crossing according to the present invention, and there are rails 4d on the clawed steel sleepers 2a to 2e.
~ 4e, prone groove type steel 6j ~ 6n are installed, and between
The buffer strips 16d to 16k are fitted into the buffer strips 16d to 16k.

[Effects of the Invention] The level crossing according to the present invention is extremely easy to construct, is structurally strong, and is convenient for maintenance and inspection, so it can be constructed economically and has a very large industrial effect. be.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of a railroad crossing according to the present invention, and FIG.
Figures 3 and 4 are a front view, side view, and plan view of the prone groove type steel, Figure 5 is an explanatory diagram showing the situation in which the prone groove type steel is pressed using a hydraulic clamp, and Figure 6
7 are partial sectional views of different railroad crossings according to the present invention, and FIG. 8 is a schematic plan view of the railroad crossing. 1... Railway level crossing, 2... Rigid sleepers, 3... Track bed ballast, 4a, 4b... Rails, 5a to 5k...
Locking grooved metal fittings, 6a to 6n... prone groove type steel, 7a
~7e...Reinforcement material, 8a, 8b...Asphalt filler, 9a, 9b...Side plate, 10a, 10b...
...Edge, 11...Hydraulic clamp, 12...Cylinder, 13a, 13b...Clamp, 14...
Insulating tie pads, 15a to 15d...Lock groove, 1
6a to 16c...buffer strip material, 17a to 17c...
Recessed portion, 18a to 18c...Mounting bolt, 1
9a to 19b...deformed steel, 20...reinforcement rib,
21...Asphalt pavement.

Claims (1)

[Claims] 1 A rigid sleeper on which a rail is placed via a fastening device, and a plurality of pairs of locking grooved metal fittings are installed facing each other at set intervals in the longitudinal direction, and outward-opening side panels are installed in the locking grooves of the metal fittings. A railroad crossing characterized by having a prone groove type steel whose end edges are elastically fitted at the rail height.