JPH0315601Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to a device for preventing the forward movement of the switching section of a turnout used for switching railway rail vehicles from the main line to the branch line. .

"Prior Art" A turnout on a vehicle track generally has a point part a, a lead part b, and a crossing part c, as shown in Fig. 6.
A pair of tongue rails 5 are arranged at the point part a, the tips of which approach and separate from the inside of the basic rail 7, and a pair of tongue rails 5 are arranged at the lead part b, between the rear end of the tongue rail 5 and the rear end of the tongue rail 5. A lead rail 3 whose front end is positioned with a seam interval of 4 (6 wear) is provided, and the lead rail 3 is located at the crossing part c.
Guard rails 23 and crossings 22 are provided on the left and right sides of the crossing 22 in which the front end is positioned with a joint gap between it and the rear end, and the basic rail 7 has a joint gap. Main rails 24 extending in the branching direction are connected to each other.

Between the tongue rail 5 and the lead rail 3 constituting the turnout, there is a combination of the same type of rail or different types of rails.

That is, in a combination configuration of a tongue rail 5 and a lead rail 3 connected with a joint interval of 4 (6 mm) between the tongue rail 5, for example, a "70S rail (height = 148 mm)" is used. ” tongue rail 5 and a different type of “50N rail (height = 153
When the lead rails 3 are combined with the tongue rail 5 and the lead rail 3, there will be a height difference of 5 mm between the tongue rail 5 and the lead rail 3, so as shown in FIG. 50N by providing a stepped part 2'
A low floor recessed groove 2 is provided to which the bottom of the lead rail 3 formed of "rail (height = 153 mm)" is engaged, and the bottom of the lead rail 3 is engaged with the low floor recessed groove 2 to form the lead rail. There is a seam interval of 4 (6
70S rail (height = 148 mm) arranged on the floorboard 1 so that the top surface of the tongue rail 5 and the top surface of the lead rail 3 are at the same level, and further as shown in FIGS. 7 and 8. As shown in the figure, a spacing material 6 is arranged between the tongue rail 5, lead rail 3 and the basic rail 7 arranged on the floorboard 1, and a joint plate 8 is placed on the outside of the tongue rail 5, lead rail 3. Apply the joining washer 9 and apply the engagement washer 10 to the outside of the basic rail 7 to connect the engagement washer 10 and the basic rail 7.
and the spacing material 6 and the tongue rail 5, the lead rail 3, the joint plate 8, and the joining washer 9 are mutually fastened via the connecting bolt 11, and the joining washer 9 and the engaging washer 1
A tongue rail 5, a lead rail 3, and a basic rail 7 are attached to the floor plate 1 at fixed positions on the floor plate 1 by tightening the bolts 12.

``Problem that the invention aims to solve'' The conventional track turnout has a floor plate 1, a tongue rail 5, a lead rail 3 and a basic rail 7 as described above.
As shown in FIGS. 7 and 8, a lead rail whose bottom part is engaged with a low floor groove 2 formed by providing a step 2' of 5 mm on the floor plate 1. The inner flange 3' at the bottom of the base rail 7 and the inner flange 7' at the bottom of the basic rail 7 are in a free state.

Therefore, when a multi-layered vehicle approaches the middle of the lead rail 3, the end surface of the lead rail 3 causes a lifting motion, which causes the end surface of the lead rail 3 to rise and descend after the vehicle has passed. By repeating this step frequently, the stepped portion 2' of the low-floor concave groove portion 2 is gradually worn away, and the lead rail 3 causes an acceleration action as the vehicle moves in the direction of the arrow in FIG. By repeating this process, I climbed onto the stepped portion 2' that was gradually worn away.
Eventually, the joint interval 4 (6 mm) between the tongue rail 5 and the lead rail 3 almost disappeared, and as a result, the rear end was adjusted to the front end of the lead rail 3 in the adjustment space of the joint interval 4 (6 mm). The opening/closing operation of the tongue rail 5, which is designed to open and close easily without touching the base rail 7 and bring its tip into contact with and away from the inside of the basic rail 7, becomes unsmooth, and in some cases, the tip of the tongue rail 5 may touch the base rail 7. This may cause a situation where the vehicle is not connected to the inside of the track, which may cause an unexpected situation such as the vehicle not being able to enter the designated track, colliding with another vehicle, or derailing.

The present invention aims to eliminate the above-mentioned deficiencies in the conventional track turnout, and to provide a device that can firmly and immovably hold the lead rail in its normal position and reliably prevent it from advancing.

"Means for Solving the Problem" In order to achieve the above object, the present invention takes the following measures.

That is, a U-shaped locking member having a horizontal groove into which the inner flange of the bottom of the lead rail fits is welded to one side of the low-floor groove, which engages the bottom of the lead rail provided on the floor plate, near the step. The inner flange portion of the bottom of the lead rail that is fixed and engaged with the low-floor groove portion is adapted to the horizontal groove of the U-shaped locking member, and the rear end of the spacer member that is fastened to the lead rail with a connecting bolt. An engaging step is provided on the lower surface, and a locking protrusion fixed to the floorboard is engaged with the engaging step, and a locking step provided on the floorboard is provided at the rear end of the spacing member on the lower surface. A restraining washer is connected to the provided engaging stepped portion and fixed to the floorboard with a tightening bolt.

"Operation" Since the present invention is constructed as described above, unlike the conventional case, one end of the inner flange part of the bottom part of the lead rail engaged with the low floor groove part of the floor plate is fixed by a U-shaped locking member. The spacing member is firmly fixed to the floorboard without being able to float, and is fastened to the lead rail with a connecting bolt.A locking protrusion fixed to the floorboard is engaged with an engagement step provided on the lower surface near the rear end. Furthermore, a restraining washer is connected to the rear end of the floorboard by engaging the hooking step with a tightening bolt to secure it to the floorboard, and the lead rail is firmly fixed in place, so the lead rail is firmly and immovably glued to the floorboard. It is held and no progressive action occurs.

"Embodiments" Next, embodiments of the present invention will be described in detail with reference to the drawings.

A lead rail 3 is installed in the low floor groove 2 provided on the floor plate 1.
A tongue rail 5 is disposed with a seam interval 4 between the tongue rail 5 and the lead rail 3;
A basic rail 7 is arranged with a spacer 6 interposed between the lead rail 3 and the tongue rail 5, and a joint plate 8 is provided on the outside of the lead rail 3 and the tongue rail 5.
and the joining washer 9, and the engaging washer 10 is applied to the outside of the basic rail 7, and the engaging washer 10, the basic rail 7, the spacing member 6, the tongue rail 5, the lead rail 3, the joint plate 8, and the joining washer 9 are mutually fastened with connecting bolts 11, and the joint washers 9 and engagement washers 10 are tightly fixed to the floor plate 1 with tightening bolts 12, and the lead rail 3 and tongue rail 5 are mounted on the floor plate 1.
In the track turnout equipped with the base rail 7 and the base rail 7, the inner side of the bottom of the lead rail 3 is placed on one side near the step 2' of the low floor groove 2 that engages the bottom of the lead rail 3 provided on the floor plate 1. A U-shaped locking member 14 provided with a horizontal groove 13 that fits the flange portion 3' is fixed by welding, and the inner flange portion 3' of the bottom of the lead rail 3 is inserted into the horizontal groove 13 of the U-shaped locking member 14. One end is adapted to restrain the inner flange 3' at the bottom of the lead rail 3.

In addition, an engaging stepped portion 15 is provided on the lower surface near the rear end of the spacing member 6 which is fastened to the lead rail 3 with a connecting bolt 11, and a locking protrusion 16 fixed to the floor plate 1 is provided on the engaging stepped portion 15. Furthermore, at the rear end of the spacer 6, a hooking step 18 formed on the lower surface is engaged with a hooking step 17 provided on the floorboard 1, and is tightened and fixed to the floorboard 1 with a tightening bolt 19. A restraining washer 20 is joined to securely and immovably fix the spacing member 6 to the floor plate 1.

Note that the reference numerals in the drawings indicate adjustment collars arranged between the connecting bolts 11 passing through the tongue rails 5.

``Effect of the invention'' The present invention is constructed as described above, and the low-floor groove is engaged with the horizontal groove of the U-shaped locking member fixed to one side of the low-floor groove of the floorboard near the step. The inner flange part of the lead rail is adapted to restrain and fix the end face of the lead rail in contact with the stepped part of the low floor groove part, and the engagement step part on the lower surface of the spacing member, which is fastened to the lead rail with a connecting bolt, is fixed to the floorboard. The lead rail is firmly and immovably integrated with the floorboard by engaging with the locking protrusion and joining the rear end of the spacer with a restraining washer that is fixed to the floorboard, so the end surface of the lead rail is fixed so that it cannot float. In addition, by fastening with this spacing material, it is even more firmly adhered to the floorboard, reliably preventing the sliding action, and accurately maintaining the specified joint spacing (6 mm) between the tongue rail and the tongue rail over a long period of use. In addition, the tongue rail can be opened and closed easily and smoothly, and can be used safely without the risk of unexpected accidents such as intrusion into the intended track or derailment.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a track turnout equipped with the device of the present invention, Fig. 2 is a longitudinal sectional view taken along line A-A' in the above, Fig. 3 is a longitudinal sectional view taken along line B-B' in Fig. The figure is a cross-sectional view taken along the line C-C' in Figure 1, Figure 5 is a partially cutaway plan view of the connection between the tongue rail and the lead rail, and Figure 6 is an explanatory diagram showing the arrangement of the rails in the turnout. , FIG. 7 is a plan view of a conventional turnout, and FIG. 8 is a sectional view taken along line D-D' of the same. 1... Floor plate, 2... Low floor groove, 3... Lead rail, 4... Joint spacing, 5... Tongue rail, 6... Spacing material, 7... Basic rail, 8... Joint plate, 9...Joining washer, 10...Engagement washer, 11
...Connection bolt, 12...Tightening bolt, 13...
Horizontal groove, 14... U-shaped locking member, 15... Engagement step, 16... Locking protrusion, 20... Deterring washer.

Claims (1)

[Claims for Utility Model Registration] The bottom of a lead rail is engaged with the low-floor concave groove of a floor plate, and a tongue rail is arranged with a joint interval between the lead rail and the lead rail,
A basic rail is arranged with a spacing member interposed between it and the tongue rail, a joint plate and a joint washer are applied to the outside of the lead rail and the tongue rail, and an engagement washer is applied to the outside of the basic rail, and the above The engagement washer, the basic rail, the spacing material, the tongue rail, the lead rail, the joint plate, and the joining washer are mutually fastened with connecting bolts, and the joining washer and the engaging washer are tightened and fixed to the floorboard with tightening bolts, and then placed on the floorboard. In a track turnout equipped with a lead rail, a tongue rail, and a basic rail, the lead rail is attached to one side of the low floor concave groove 2 near the step 2' that engages the bottom of the lead rail 3 provided on the floor plate 1. A U-shaped locking member 14 having a horizontal groove 13 to which the inner flange portion 3' of the bottom of 3 fits is fixed, and the horizontal groove 13 of the U-shaped locking member 14 is engaged with the low-floor groove portion 2. Adapting the inner flange portion 3' at the bottom of the lead rail 3, the lead rail 3
An engaging stepped portion 15 is provided on the lower surface of the spacing member 6 to be fastened with the connecting bolt 11, and a locking protrusion 16 fixed to the floorboard 1 is engaged with the engaging step portion 15, and the spacing member 6 A device for preventing advancement of a turning part in a track turnout, which is formed by joining a restraining washer 20 fixed to a floor plate 1 at the rear end.