JPH0563563B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a level crossing (hereinafter referred to as a railway level crossing) at an intersection between a railway and a road that straddles rails, such as a railway or ground crane track.

[Conventional technology] Railway level crossings are located at intersections between railways and roads, and are desired to have a strong structure, be easy to construct, have high safety, and be easy to repair and can be repaired in a short period of time. Therefore, various railroad crossings have been proposed.

For example, Japanese Patent Application Laid-Open No. 58-69903 discloses a level crossing (hereinafter referred to as Invention A) that combines a buffer member and a concrete block, and
-230404 discloses a level crossing suitable for mechanical trackbed maintenance consisting of fixed treads and movable treads (hereinafter referred to as the B invention), and JP-A-60-10002 discloses a level crossing that is suitable for mechanical track maintenance, consisting of fixed treads and movable treads, and JP-A-60-10002 discloses a level crossing that is easy to inspect the rails and has low maintenance costs. A level crossing and gap filling method (hereinafter referred to as invention C) is disclosed. Furthermore, Tokukai Akira
Publication No. 59-154204 discloses a level crossing (hereinafter referred to as the D invention) that employs a highly durable level crossing cushioning material.

Now, although each of the inventions A to D has a structure with advantages, there are issues that need to be improved in terms of workability, maintenance and inspection, as well as structural strength. In order to create a railroad crossing that is convenient for maintenance and inspection, the present inventors installed a rail through a fastening device and installed multiple sets of locking grooved metal fittings at set intervals in the longitudinal direction. We developed a railroad crossing whose main components were rigid sleepers and prone channel steel in which the edges of outward-opening side panels were elastically fitted into the locking grooves of the metal fittings, and we first filed a patent application in 1983.
The application was filed as No. 21384 (see Japanese Unexamined Patent Publication No. 198906/1999).

[Problem to be solved by the invention] All of the various railroad crossings that have been proposed and implemented have long construction periods and require time to replace and inspect.
There was a problem with the mechanical strength of heavy vehicles when passing through them.

In addition, although the railroad crossing of the earlier application (Japanese Patent Application No. 63-21384) is easy to install and convenient for maintenance and inspection, it is difficult to construct and economically There is still room for further improvement in terms of gender.

The present invention was made in view of these points,
The purpose of the present invention is to provide a railroad crossing that has a small number of component parts, has excellent workability, has a good paved surface function, and is easy to maintain and inspect.

[Means for Solving the Problems] As a means for solving the above problems and achieving the objects, the present invention provides a rail fastening device and a plurality of sets of locking grooved metal fittings at set intervals in the longitudinal direction. A railroad crossing base consisting of a plurality of opposed steel sleepers arranged in parallel in the longitudinal direction of the rail, and a plurality of lying boards in which the end edges of outward-opening side plates are elastically fitted into the locking grooves of the metal fittings with locking grooves. To provide a railroad crossing comprising a channel steel, a paving steel plate that abuts the top plate of the prone channel steel, and a fastening fitting that detachably fastens the paving steel plate to a fitting with a locking groove.

Furthermore, the present invention provides a railroad crossing in which a part of the prone channel steel is a prone channel steel with a paving steel plate welded to the top plate, and the paving steel plate is a non-slip steel plate, and further, the paving steel plate is a pressed steel plate. Preferably, the railroad crossing is provided with a cutout hole for inserting a clamp actuation claw.

[Function] The present invention provides, as a railroad crossing base, a plurality of steel sleepers in which a rail fastening device and a plurality of sets of metal fittings with locking grooves are arranged opposite each other at set intervals in the longitudinal direction of the rail. Since the rails are used, the construction is easy and the rails can be easily installed and have good penetration into the track bed ballast.Furthermore, since the rail fastening devices are installed in advance at set intervals, the rail installation can be carried out extremely efficiently.

Furthermore, a plurality of sets of metal fittings with locking grooves are provided oppositely at set intervals in the longitudinal direction of the steel sleeper, and the ends of the outward-opening side plates of the prone groove steel are attached to the metal fittings with locking grooves. The steel sleeper and prone channel steel are completely locked together by just elastically fitting the edges, so construction and replacement are extremely simple, and there are no other parts required for installation, making it economical.

In addition, the locking between steel sleepers and prone channel steel utilizes the strong elasticity of the steel material, so it is structurally strong, and the locking acts in the direction of strengthening when a load is applied. Its functionality is stable and it is highly reliable as a railroad crossing.

Next, since the paved surface is constituted by the paving steel plate that is in contact with the top plate of the prone channel steel, it has high mechanical strength and there is no fear of damage even when heavy vehicles pass by. Moreover, since the paving steel plate is attached to the metal fitting with the locking groove using a fastening metal fitting that is detachably fastened to the metal fitting, it is easy to attach and remove the plate, and maintenance and inspection are easy.

Furthermore, when using a prone channel steel with a paving steel plate welded to the top plate as a part of the prone channel steel, it is even easier to install and remove, making it suitable for use at points of contact between railroad crossings and roads. . Furthermore, when a non-slip steel plate is used as the paving steel plate, the slippage that tends to occur in steel plates is reduced, so traffic safety can be improved.

In addition, if the paving steel plate is provided with a notch hole for inserting a pressure clamp actuating pawl, locking of the prone channel steel and the steel sleeper can be carried out extremely efficiently.

[Example] Fig. 1 is a schematic plan view of a railroad crossing 1 according to the present invention, in which 2a to 2e are steel sleepers, and this example shows an example of five vertically installed sleepers. Needless to say, the number of installations should be determined appropriately depending on the situation. 3a and 3b are rails, which are fastened to the steel sleepers 2a to 2e by a rail fastening device (not shown).

The steel sleepers 2a to 2e have the same shape as the prone groove steel described later, and if longer lengths are used, the number of members can be reduced, which is economical. If the shaped steel is manufactured by hot rolling, it is advantageous in terms of cost and has good reliability in terms of quality, but the method is not limited thereto.

Next, 4a to 4c are paving steel plates, which are supported by prone groove steel (not shown), and metal fittings with locking grooves (not shown) fixed to the steel sleepers 2a to 2e. They are removably fixed to the steel sleepers 2a to 2e via fastening fittings.
In addition, D ₁ and D ₂ indicate the points of contact between the road and the railroad crossing,
For example, concrete curbs or steel protection boards are installed.

Figure 2 is a sectional view taken along line A-A in Figure 1, steel sleeper 2b.
Metal fittings 5a to 5h with locking grooves are welded at set intervals as will be described in detail later, and the prone groove steels 6a to 6h are provided with locking claws on the edge portions of both outward-opening side plates.
6e is locked to the metal fittings 5a to 5h with locking grooves.

Reference numerals 7a to 7d are rail fastening devices, which are fixed at positions that maintain a set interval, in this case a narrow gauge interval.

8a and 8b are fastening fittings, which are attached to the pavement steel plate 4b.
and metal fittings 5c and 5f with locking grooves are fixedly attached.

Since the paving steel plates 4a, 4c are welded to the prone channel steels 6a, 6e, it is only necessary to elastically fit or lock the prone channel steels 6a, 6e into the locking grooved fittings 5a, 5b, 5g, 5h. , is fixed to the steel sleeper 2b. In this case, when heavy vehicles pass and a more robust structure is desired, the paving steel plate 4a,
4c may be welded and fixed to the locking grooved metal fittings 5a, 5h.

Since the railway level crossing of the present invention is constructed as described above, it is possible to perform construction and maintenance work quickly, which is unprecedented for conventional railway level crossings.

Next, details of the constituent members of the railroad crossing according to the present invention will be explained.

3, 4, and 5 are a cross-sectional view, a partial side view, and a partial plan view of the prone channel steel 6a, from the web or top plate 9 of the prone channel steel 6a to the flange or outward-opening side plates. 10a, 10b extend in both directions, and the end edges 11a, 11b have claw-like sections with outwardly bulging sections.

In the present invention, the channel steel having outward opening side plates is used as the third
As it is used in a prone position as shown in the figure, it is called a prone channel steel.

Next, FIG. 6 is an explanatory diagram of the principle for locking the prone channel steel 6a to the locking grooved metal fitting, in which the press clamp 12 is connected to the operating claws 13a, 13b and the cylinder 14.
and both side plates 10a, 1 of the prone channel steel 6a.
The structure is such that it is possible to pinch 0b.

Therefore, as shown in FIG.
The both side plates 10a, 10b of the operating claws 13a, 13b
When the cylinder 14 is clamped and the cylinder 14 is operated, the side plates 10a and 10b are retracted inward as shown by broken lines 15a and 15b, and the initial distance _T1 becomes shorter as _T2 .

In this state, when the cylinder 14 is opened by coming into contact with a locking groove of a metal fitting with a locking groove, which will be described later, the distance between the side plates 10a and 10b returns to _T1 .
As a result, both side plates 10 of the grooved steel 6a lie in the locking groove.
The edge portions 11a and 11b of a and 10b enter into the locked state.

The pinching by the cylinder 14 is naturally carried out within the elastic limits of the side plates 10a, 10b. Therefore, in the present invention, this is referred to as elastic fitting.

FIG. 7 is a schematic perspective view of the locking grooved metal fitting 5a,
16 indicates a locking groove drilled in the horizontal direction. The locking grooved fitting 5a can be fixed by welding the floor surface 17 to the steel sleeper 2b, or by using a locking hole (not shown) provided in the floor surface 17 by a well-known means such as a clamp fitting. and fix it.

Next, Fig. 8 shows a different locking grooved metal fitting 5c.
This is a schematic perspective view showing a locking groove 18 drilled in the horizontal direction, similar to the locking grooved metal fitting 5a, and a keyhole 19 for locking a hook bolt of a fastening metal fitting to be described later. The fixing of the metal fitting 5c with a locking groove and the structural sleeper 2a is the same as in the case of the metal fitting 5a with a locking groove.

Regarding the metal fittings 5d and 5e with locking grooves,
Other than having locking grooves on both sides, metal fittings with locking grooves 5
Since it is the same as a, the explanation will be omitted.

Next, FIGS. 9 to 11 are schematic explanatory diagrams showing the work steps constituting a part of the railroad crossing according to the present invention.
5f and fastening devices 7b to 7c (9th
Then, the prone channel steels 6b to 6d are successively elastically fitted into the locking grooved fittings 5c to 5f as described above (FIG. 10). Next, the pavement steel plate 4b is moved from a crane (not shown) to the prone channel steel plates 6b to 6d.
Then, the paving steel plate 4b is fastened to the grooved locking fittings 5c, 5f using the fastening fittings 8a, 8b (FIG. 11).

Now, FIG. 12 is a detailed sectional view showing how the fastening fitting 8b is fastened, and the paving steel plate 4b has a through hole 20 in advance at a position facing the fastening grooved fitting 5f.
A pot-shaped metal fitting 23 having a hole 22 through which a hook bolt 21 can be inserted is welded to the lower side of the through hole 20. The pot-shaped metal fitting 23 includes:
Furthermore, a spacer ring 24 for adjusting the distance is welded, and the spacer ring 24 also has a hole 25 through which the hook bolt 21 can be inserted.

Further, since the locking grooved metal fitting 5f also has a keyhole 26 similar to the locking grooved metal fitting 5c, the spacer ring 24 and the locking grooved metal fitting 5
After making contact with f, the hook bolt 21 is inserted and rotated 90 degrees as shown in FIG. 12, and then the nut 27 is tightened, thereby firmly fastening the paving steel plate 4b to the steel sleeper 2b. The space around the nut 27 is filled with an asphalt-based filler, if necessary, to prevent the nut from loosening and from rusting.

Furthermore, FIGS. 13 and 14 are partial detailed views showing how the paving steel plate 4c is attached. In elastically fitting the end edge of the prone channel steel 6e into the locking grooved metal fittings 5i/5l, as described above, Press clamp 1
In order to pinch both side plates of the prone channel steel 6e from above using the operating claws 13a and 13b of No. 2, it is impossible unless the width of the paving steel plate 4c is narrower than the width of the prone channel steel 6e. In the present invention, the paving steel plate 4c has a notch hole 28 for inserting the press clamp operating claw.
A to 28b were provided to enable efficient work.

[Effects of the Invention] The railroad crossing of the present invention has an extremely small number of constituent members, is easy to construct, and is structurally strong.
Moreover, maintenance and inspection are easy, and the paved surface is highly safe, so its practical effects are great.

[Brief explanation of drawings]

Fig. 1 is a schematic plan view of a railroad crossing according to the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Figs. , a partial side view, a partial plan view, FIG. 6 is an explanatory diagram of the principle for locking the prone grooved steel 6a to the horizontal locking fitting, FIG. 7 is a schematic perspective view of the locking grooved fitting 5a, FIG. 8 is a schematic perspective view of the locking grooved metal fitting 5c, FIG. 9, and FIG.
Fig. 11 is a schematic explanatory diagram showing the working process constituting a part of the railroad crossing according to the present invention, Fig. 12 is a detailed sectional view showing the fastening state of the fastening fitting 8b, Fig. 13, Fig. FIG. 14 is a partially detailed view showing how the paving steel plate 4c is installed. 1... Steel railroad crossing, 2a to 2e... Steel sleepers,
3a, 3b...railway, 4a-4c...paving steel plate,
5a to 5h...metal fittings with locking grooves, 6a to 6e...
Prone channel steel, 7a to 7d...Rail fastening device, 8
a, 8b...Fixing metal fitting, 9...Top plate, 10a, 1
0b...Outward opening both side plates, 11a, 11b...Edge portion, 12...Press clamp, 13a, 13b...
Operating claw, 14...Cylinder, 15a, 15b...
...Dotted line, 16...Latching groove, 17...Bottom surface, 18...
...Latching groove, 19...Through hole, 20...Through hole, 2
1... Hook bolt, 22... Hole, 23... Pot-shaped metal fitting, 24... Spacer ring, 25... Hole,
26...Keyhole, 27...Natsuto, 28a, 28b
...Notch hole.

Claims (1)

[Claims] 1. A railroad crossing base consisting of a plurality of steel sleepers arranged side by side in the longitudinal direction of the rail, each of which has a rail fastening device and a plurality of sets of metal fittings with locking grooves arranged at set intervals in the longitudinal direction;
A plurality of prone channel steels in which end edges of outwardly opening side plates are elastically fitted into the locking grooves of the metal fitting with a locking groove, a paving steel plate that abuts the top plate of the prone groove steel, and the paving steel plate. A railroad crossing consisting of a fastening metal fitting that is removably fastened to a metal fitting with a locking groove.