JPH0412084Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is mainly used for railways laid for railways, and when damage such as transverse tearing occurs, a piece of paper is set on the damaged part to temporarily stop the rolling stock. The present invention relates to an emergency treatment device for use in the event of rail damage to enable running.

[Prior Art] Rails laid for railways often develop so-called transverse cracks in which cracks occur in a direction substantially perpendicular to the longitudinal direction of the rails due to impacts received from vehicles running on the rails, metal fatigue, etc. damage may occur. Rails with transverse tears need to be replaced, but since there is no time for this work during train operation hours, first aid equipment is set up at the part where the transverse cracks have occurred, and the rails are temporarily repaired so that the train can be restored. Efforts are being made to make it accessible.

FIGS. 7 and 8 show one conventional example of the device. This is for a 60 kg rail (rail with a weight of 60 kg per 1 m, hereinafter referred to as rail R ₁ ) shown by the symbol R ₁ in the figure, and a pair of press plates 1 are
The lower plate 3 is placed facing both sides of the rail R ₁ where the horizontal crack has occurred, and is passed through the lower plate insertion hole 2 made at the lower center of both pressing plates 1. Of the holes 4a and 4b drilled in the holes 4a and 4b, a fixing fitting 5 is fixed in one hole 4a, and a wedge 6 is fitted in the other hole 4b, whereby both pressing plates 1 are attached to the rail.
The rail R ₁ is held in its normal state by being strongly pressed and pinched from both sides of the rail R ₁ .

The pair of pressing plates 1 have a rail on the top thereof.
An upper pressing surface _1a is formed on the inner surface of the groove portion 7 formed on both sides of the rail _R1 to tightly contact the under-chin surface 8a extending from the head 8A to the abdomen 8B of the rail R1,
Also, at the bottom, the inner surface 8 of the base 8C of the rail _R1
A lower pressing surface 1b is formed in close contact with the rail _R1 , and a groove 1c into which the base 8C of the rail R1 fits is formed, and these portions are set in correspondence with the respective rails.

The fixing fitting 5 and the wedge 6 are fixed by jigs 9 and 10, respectively.

[Problems to be solved by the invention] By the way, railway rails are made up of a large number of connected rails, and in the rails on which a particular vehicle runs, rails with different cross-sectional shapes may be connected to each other. There is a connected style seam. FIG. 9 is a plan view showing such a joint. In this case, the rail R ₁ is a 90S rail R ₂ (a special rail with a weight of 90 kg per 1 m) that has a different cross-sectional shape from the rail R ₁ . , below rail R ₂
) are connected.

This joint is formed by connecting end surfaces of both rails R ₁ and R ₂ obliquely with respect to the width direction of the rails, and by combining these joint end surfaces together, this part is configured as one rail. This is a so-called expansion joint that effectively adjusts the amount of expansion and contraction of the rail.

As shown in Fig. 10, the cross-sectional shape of this joint part is different from that of both rails R ₁ and R ₂ , so the grooves formed on the sides are also different in size and shape. It's on. In other words, at this joint, there is a difference in the shape of the grooves on both sides of the rail. Therefore, even if an attempt is made to use the above-mentioned first aid device at this joint, this device is designed specifically for rail R 1 in which the shape of the upper and lower pressing surfaces 1a of the pressing plate 1 is matched to the groove 7 of rail R _{1 .} Therefore, there was a problem in that the pressing plate 1 could not be set on the rail _R2 side, and therefore it could not be applied to this joint part.

Note that, as shown in FIG. 9, both rails R ₁ and R ₂ are fixed by a rail fastening device 12 to a slab S made of a concrete plate laid on a concrete track bed (not shown). ing. In addition, as methods for laying the rails on the track, there are two ways to install the rails: fasten them to concrete sleepers that are installed on a concrete track bed via elastic members, or fasten them to concrete sleepers that are installed on a track bed made of crushed stone or gravel.
It may also be concluded against PC sleepers.

[Means for solving the problem] The first aid device for when a rail is damaged according to the present invention has been developed to solve the above problem, and is arranged on both sides of the rail with the rail in between. a pair of pressing plates pressed against the side grooves of the
In the first aid device for rail damage, the device includes a base disposed so as to pass under the rail, and a pressing mechanism that presses the pressing plate against the side groove of the rail while being supported by the base. First and second pressing surfaces are formed on the outer circumferential surface of the plate to match the inner surfaces of the grooves of two types of rails with different cross-sectional shapes of side grooves, and these two types of pressing surfaces are selectively pressed against the rail by the pressing mechanism. It is characterized by being configured so that it can be pressed against.

[Operation] The first aid device of the present invention can be used in the following three conditions for two types of rails with different cross-sectional shapes of side grooves.

A first pressing surface formed to match the inner surface of the groove of the first rail is aligned with the inner surface of the groove on both sides of the first rail, and the first rail is sandwiched between the two pressing plates.

A second pressing surface formed to match the inner surface of the groove of the second rail is aligned with the inner surface of the groove on both sides of the second rail, and the second rail is sandwiched between the two pressing plates.

With respect to the portion where the first and second rails are the aforementioned expansion joints, the first pressing surface is placed on the inner surface of the groove of the first rail, and the second pressing surface is placed on the inner surface of the groove of the second rail. Align and pinch the seam. As a result, it can also be applied to an expansion joint where both rails having different cross-sectional shapes of the side grooves are connected.

As described above, by aligning the pressing surface of the pressing plate with the inner surface of the groove on the rail side in each case, and then pressing the pressing plate with the pressing mechanism,
Damage to the rails will be repaired.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

Figures 1 to 3 show the first aid device of this embodiment set at the joint between rail _R1 and rail _R2 shown in Figure 9, and Figure 1 is a plan view. , FIG. 2 shows a side view, and FIG. 3 shows a front view.

What is indicated by the reference numeral 20 in these figures is a pair of pressing plates 21 disposed on the sides of both rails R ₁ and R ₂ .
22 is a support plate (base) arranged to pass under the rail, and ₂₂ is _a bolt ( (pressing mechanism).

As shown in FIG. 4, the pair of pressing plates 20 have a substantially L-shaped cross section, consisting of a wide plate portion 20a and a narrow plate portion 20b, and their outer surfaces (in the figure
A part of the surface (which spans P ₁ to _{P 2} ) is formed to match either of the inner surfaces of the grooves 8 and 11 of the rails R ₁ and R ₂ .

That is, among these outer surfaces P ₁ to _{P 2} , in FIG.
The surface extending from P ₁ to P ₃ is formed along the surface extending halfway from the upper edge of the inner surface of the groove 7 of the rail R ₁ to the upper surface of the base 8C, as shown in FIG. This part is the groove part 7 of rail _R1 .
The first pressing surface 20A is in close contact with the inner surface of the first pressing surface 20A. Also, approximately at the center of the outer surface of the wide plate portion 20a,
The surface extending from P ₄ to P ₂ is formed along the inner surface of the groove 11 of the rail _{R 2} , as shown in FIG. A matching second pressing surface 20B is formed.

Further, on the inner surfaces of the wide plate portion 20a and the narrow plate portion 20b of the press plate 20, as shown in FIGS. Bolt fitting recesses 23a, 2 are provided at multiple locations (in this case, 5 locations) corresponding to each other.
3b are provided respectively. These recesses 23a and 23b have rectangular counterbore portions 24.
a and 24b are formed respectively. Note that small holes 25 are formed between each of the recesses 23a, 23b and the outer surface of the pressing plate 20, respectively.

Furthermore, as shown in FIG. 5, this pressing plate 20 has
Its length is such that it spans the three rail fastening devices 12.

The support plate 21 has a rectangular base portion 2.
It has a substantially L-shaped cross section with a bent part 21b bent at right angles at one end of 1a, and a bolt 22 is screwed into the bent part 21b from the outside via a locking nut 22a. In addition, this bolt 2
The tip of No. 2 is simply a round bar. Also,
As shown in FIG. 3, two inner and outer guide grooves 2 extending in a direction perpendicular to the longitudinal direction of the support plate 21 are provided on the upper surface of the other end side of the substrate portion 21a.
6a and 26b are formed at intervals from each other.

A bolt stand 27 is arranged on the other end side of the support plate 21. This bolt stand 2
Reference numeral 7 has an L-shaped cross section consisting of a horizontal plate 27a and a vertical plate 27b, and a convex portion 28 that fits into the guide grooves 26a and 26b of the support plate 21 is formed on the bottom surface of the horizontal plate 27a. This bolt stand 27 has a convex portion 28 on the bottom surface connected to one of the guide grooves formed on the support plate 21.
6a and 26b (in Fig. 3, the outer 26
b) It is fixed to the support plate 21 by fixing bolts 29. With this, the bolt 22 on the bolt stand 27 side
can be selectively moved according to the width of the rail.

Also, the vertical plate portion 27b of this bolt stand 27
, the bolt 22 is inserted through the locking nut 22a so as to be coaxial with the bolt 22 while the bolt stand 27 is fixed to the support plate 21.
is screwed in.

In each of the above mechanisms, as shown in FIG. 3, the support plate 21 is placed under the rail with its longitudinal direction perpendicular to the rail, and in this state, each bolt 22 is The tip of each bolt fitting hole 23 formed in the above-mentioned pressing plate 20
The dimensions are set so that it can fit into the holes a and 23b.

An example will be described in which the present device configured as described above is applied to a case where a transverse tear occurs at the joint between rail R ₁ and rail R ₂ as shown in FIG. 1.

First, as shown in FIG.
The first pressing surface 20A of the rail R1 is aligned with the inner surface of the groove 7 of the rail _R1 , and the other pressing surface 20A is placed opposite to the inner surface of the groove 7 of the rail R1.
0, the second pressing surface 20B of the rail R2, the groove part ₁ of the rail
1, thereby making both pressing plates 20
Set against both sides of both rails R ₁ and R ₂ .

Next, as shown in FIG.
1 are placed under the rail at intervals such that each bolt 22 corresponds to the bolt insertion holes 23a, 23b of both pressing plates 20 (in the figure, the second and third positions from the left). At this time, the protrusion 28 on the bottom of the bolt stand 27 is connected to the support plate 27.
The guide groove 26b is placed in the outer guide groove 26b. This is because the width between the rails is thick.

Each bolt 22 is screwed in, and its tips are fitted into the bolt fitting recesses 23a and 23b of the press plate 20, respectively, so that both press plates 20
firmly press it against the rail. Then, both rails
R ₁ and R ₂ are strongly pinched by both pressing plates 20, and the transverse tear is repaired.

In addition, as shown in FIG. 5, A and B, by changing the position of the pressing plate 20 in accordance with the location where the transverse tear occurs, it is possible to press the pressing plate 20 against the rail at the most appropriate position. can. That is,
In (A), a horizontal tear occurs between the fastening devices 12 of the rail, and (B) shows the arrangement of the pressing plates 20 when a horizontal tear occurs in the fastening device 12.

Furthermore, as shown in FIG. 6, this device can be applied not only to the joint portion as described above, but also to the normally laid rail _R1 . That is,
In this case, the first pressing surface 20 of both pressing plates 20
A is made to match the inner surface of the groove portion 7 of the rail _R1 .
In this case, since the width of the rail is narrow, the protrusion 28 on the bottom of the bolt stand 27 is fitted into the inner guide groove 26a.

As described above, according to the first aid device of this embodiment, the pressing plate has the first pressing surface 20A that matches the inner surface of the groove 7 of the rail _R1 , and the first pressing surface 20A that matches the inner surface of the groove 7 of the rail _R2.
Since the second pressing surface 20B is formed in close contact with the inner surface of the first rail, it is impossible to
It is possible to repair the R ₁ and R ₂ joints, and it can be applied not only to the joints but also to regular rail parts.

Moreover, as shown in FIG. 5, the length of the pressing plate 20 is such that it extends over one rail fastening device 12 and close to the fastening devices 12 on both sides of the rail fastening device 12. The fastening device 12 also
It also has sufficient ability to repair horizontal tears that occur during the process.

Further, since the support plate 21 is not so thick, it has the advantage that it can be used even when the space below the rail is relatively narrow.

[Effects of the invention] As explained above, according to the first aid device for rail damage of the invention, the pressing mechanism presses against the rail, and the pressing plate that sandwiches the rail has a side groove cross-sectional shape on the outer peripheral surface. Since the first and second pressing surfaces are respectively formed to match the inner surfaces of two different grooves, and these two types of pressing surfaces can be selectively pressed against the rail by the pressing mechanism, the normal For each rail installed in the same condition, the rail can be repaired by matching each pressing surface to the inner surface of the groove of the rail.Furthermore, when these two types of rails are combined, the cross section of the groove on both sides Even for expansion joints that are connected in different shapes, each pressing surface can be made to correspond to each groove, which has the effect of repairing damage such as transverse tears that occur in the joints. play.

[Brief explanation of drawings]

1 to 6 are views showing one embodiment of the present invention, in which FIG. 1 is a plan view showing a state set on a rail, FIG. 2 is a side view thereof, and FIG. 3 is a first embodiment of the present invention.
Fig. 4 is a view taken along the - line in the figure, Fig. 4 is a view showing the end face of the pressing plate, Fig. 5 A and B are plan views showing the case where the arrangement of the device is changed depending on the location where a transverse tear occurs, and Fig. 4 is a view showing the end face of the pressing plate. FIG. 6 is a front view showing the device set on the normal rail. 7 is a front view showing a conventional first aid device, FIG. 8 is a side view thereof, FIG. 9 is a plan view showing a joint where rails with different cross-sectional shapes are connected, and FIG. FIG. 3 is a sectional view taken along the - line in the figure. 7, 11...Groove portion, 20...Press plate, 21...
Support plate (base), 22... bolt (pressing mechanism), 20A... first pressing surface, 20B... second
Pressure surface, R ₁ ...60Kg rail, R ₂ ...90S rail.

Claims (1)

[Scope of utility model registration request] a pair of pressing plates placed on both sides of the rail with the rail in between and pressed against the side grooves of the rail; a base placed so as to pass under the rail; In the first aid device for rail damage, which includes a pressing mechanism that presses a pressing plate against a side groove of the rail, a first groove is provided on the outer circumferential surface of the pressing plate, and which matches the inner surface of each groove of two types of rails having different cross-sectional shapes of the side groove. , a first aid device for use when a rail is damaged, characterized in that a second pressing surface is formed, and these two types of pressing surfaces can be selectively pressed against the rail by the pressing mechanism.