JPH11336003A - Expansible joint device for rail - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a costless expansible joint device by which trains can safely travel to prevent wheels from entering from a position lacking in a gauge line of the expansible joint of railroad rails and from running on to the rails and by which the longitudinal distance of the ends of the forward and rearward rails can be shortened and further, easily carry out installation works and maintenance works without installing equipment such as guide rails. SOLUTION: The joint thin end 1' of a forward rail end 1 and the joint thin end 2' of a rearward rail end 2 are formed parallelly to the longitudinal direction of rails respectively. The joint thin ends 1', 2' are put parallelly to the longitudinal direction of the rails and closely to each other to form an expansible joint 3. One end of a guide plate 5 guiding a wheel to a gauge line (a) is fixed to the end 2 of the rearward rail. The guide plate 5 is installed in a position (b) lacking in a gauge line of the expansible joint 3 in a state that the rail ends 1, 2 are expansibly or contractibly transferable in the longitudinal direction of the rails so that the other end of the guide plate 5 and the joint thin ends 1', 2' are pinched loose by rail presses 8, 8'.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a telescopic joint of a railway rail.

[0002]

2. Description of the Related Art FIG. 10 shows a so-called telescopic joint device for adjusting the expansion and contraction of a long rail. This is on one of the front and rear rail ends 1, 2.
A tongue rail having a sharp tip and an inclined side surface 1h is used, and a receiving rail having an inclined opposed side surface 2h is used for the other of the front and rear rail ends 1, 2. The side surfaces 1h and 2h are close to each other. According to this conventional example, the rail gap b ′ and the rail end 2
The distance from the head side 2g can be reduced, the wheel flange is locked to the head side 2g, and the entire wheel does not run on the rail end portion 2, which is effective.

However, in the case of this conventional example, when the rail end is shortened as shown by the broken line, the inclination angle f of the tong rail is reduced.
Is larger than the inclination angle e of the long tongue rail (shown by the solid line). For this reason, when the tongue rail is extended by the distance x, for example, due to the temperature rise, the tongue rail becomes long as shown by a solid thin line, and displaces by the distance w, whereas when the tongue rail is short, the tongue rail becomes displaced by a distance W as shown by a dashed line. However, the gauge is so small that it displaces and hinders safe running of the vehicle. Therefore, in the conventional example, the inclination angle is small, that is, the rail ends 1,
2 has to be lengthened, is expensive, and is economically disadvantageous.

FIG. 11 shows another conventional example. This means that the seam ends of the front and rear rail ends 1 and 2 are formed thinner than the remaining portions 1 "and 2" and are parallel to the rail longitudinal direction, and the seam narrow ends 1 'and 2' are adjacent to each other in parallel to the rail longitudinal direction. Is what you do. According to this other conventional example, it is not necessary to consider the above-mentioned change in gauge, and the rail ends 1 and 2 can be made shorter than in the above conventional example, which is economical in this respect. When the rail ends 1 and 2 contract and move, a large gap b "is generated between the gauge line broken line b 'and the head side surface 2g of the narrow seam end 2', and one of the wheels 4 as shown by an imaginary line.
However, there is a possibility that the wheels 4 and 4 may derail due to the distance b ", so that a guard rail 36 holding the wheel flange 4 'is installed in parallel with the telescopic joint device as indicated by reference numeral 36. Arranging the guard rail 36 in alignment with the telescopic joint requires skill and is disadvantageous in terms of workability and maintainability.
Various parts such as a dedicated plate for integrally connecting the guard rail 2 and the guard rail 36 are required, and the structure is complicated and expensive.

[0005]

The first object of the present invention is as follows.
The invention does not require the wheels to enter the gap between the gauge lines and ride on the rails, so that the wheels can travel safely, and the longitudinal distance between the front and rear rail ends is shortened and provided at low cost, and facilities such as guard rails are provided. It is an object of the present invention to be able to easily perform an installation operation and a maintenance operation without providing a device.

According to a second aspect of the present invention, in addition to the object of the first aspect, the structure of the wheel guiding means can be simplified and manufactured at low cost, and the wheel guiding means can be positioned easily, quickly and reliably. The task is to

A third object of the present invention is to provide a vehicle which can reliably guide a wheel and increase the mechanical strength of a locking portion.

A fourth object of the present invention is to further increase the mechanical strength of the guide plate in addition to the object of the third invention.

According to a fifth aspect of the present invention, in addition to the object of the first aspect of the present invention, the wheel guiding means is securely mounted without requiring special parts, and the front and rear rail ends are held in the longitudinal direction of the rail. The task is to be able to do so.

A sixth object of the present invention is to provide a semiconductor device capable of reliably holding the front and rear rail ends in the longitudinal direction of the rail in addition to the objects of the first embodiment.

Another object of the present invention is to make it possible to mount the wheel guiding means more easily and quickly without requiring special parts.

An eighth object of the present invention is to provide a vehicle driving apparatus in which the wheel guiding means can be securely mounted without requiring any special parts.

According to the ninth and tenth aspects of the present invention, in addition to the objects of the seventh and eighth aspects, the rail brace is securely fixed at a fixed position, so that the rail brace is displaced in a direction perpendicular to the rail and the front and rear rail ends are shifted. Part and the guide plate more than necessary, as a result, restricting the front and rear rail ends from expanding and contracting in the longitudinal direction of the rail, and conversely, leaving a large gap between the front and rear rail ends and the guide plate. To make the guide plate not unstable.

A further object of the present invention is to enable fine adjustment of the proximity range between the rail brace, the guide plate and the rail end.

[0015]

In order to solve the above-mentioned problems, according to a first aspect of the present invention, a seam narrow end is formed at each of front and rear rail ends in parallel with the longitudinal direction of the rail. The ends are formed parallel to the rail longitudinal direction to form a telescopic seam portion, and a wheel is inserted into the gauge gap line of the telescopic seam portion while holding the front and rear rail ends in the rail longitudinal direction. It is characterized in that a guide plate for guiding to the gauge line is provided.

In the specification of the present application, the term "proximity" means not only the case where the members approach each other with play, but also does not hinder the extension and contraction movement of the rail end in the rail longitudinal direction. Is a light contact, that is, a case where the contact is made to the extent that the contact is slight.

According to the first aspect of the present invention, even if the front and rear rail ends contract and move in the longitudinal direction of the rail to generate a large rail gap, a guide plate exists at the position. The distance between the telescopic joint and the telescopic joint device can be specified so that the wheels can travel safely without entering the gap between the gauge lines and climbing on the end of the rail. It is easy to install and maintain the guide plate at the position that can be immediately recognized, that is, the gap between the gauge lines, without the operational difficulty of installing it.It is easy to perform the installation work and maintenance. Since they are close to each other in parallel to the longitudinal direction, the distance can be shortened, and it is inexpensive and economically advantageous.

In the first aspect of the present invention, the guide plate may be any plate that can guide the wheel to the gauge line, but as in the second aspect of the present invention, the wheel flange of the wheel where the guide plate is located at the gap between the gauge lines is provided. It is preferable that the plate material has a locking portion that can be locked and a convex portion that fits into a side concave portion of the front and rear rail ends.

In this way, the structure of the guiding means is simple and can be manufactured at a low cost, and the positioning of the guiding plate can be performed easily, quickly and reliably only by fitting the projections into the side recesses.

According to the second aspect of the invention, the shape of the locking portion and the side recesses at the front and rear rail ends are not specifically limited. Has an inclined surface having an angle smaller than the inclined angle of the wheel flange, and a side recessed portion in which a portion of each head of the front and rear rail ends, which is lower than the rail line, is inclined toward the abdomen, and the abdomen And the upper surface of the leg.

If the angle of inclination of the locking portion is greater than the angle of inclination of the wheel flange, the wheel may be lifted and enter the broken wire between the rails, and may ride on the end of the rail. There is no fear that the flange is securely guided by the guide plate, and if it is formed almost vertically below the gauge line like a conventional rail, the locking portion with an inclination angle smaller than the inclination angle of the wheel flange Must be thin, but as described above, the part of the head at the end of the rail that is lower than the gauge line is inclined toward the abdomen. And the mechanical strength of the locking portion can be increased.

According to the third aspect of the present invention, it is not limited whether or not the angle of the inclined surface of the locking portion is kept constant to the lower side. It is preferable that the lower part of the surface bulges outward from the extension line.

In this way, the thickness of the guide plate including the locking portion is increased, and the mechanical strength is further increased.

According to the first aspect of the present invention, it is sufficient that the guide plate is provided in the gap between the rails so that the front and rear rail ends can move without being restricted by the expansion and contraction movement in the rail longitudinal direction. Although it is not limited how the guide plate is provided, one end of the guide plate is fixed to one of the front and rear rail ends as in the invention of claim 5, and the other end of the guide plate is connected to the front and rear. The guide plate is provided at the gap between the rails while maintaining the expansion and contraction movement of the front and rear rail ends in close proximity to the other one of the rail ends, or one end of the guide plate is moved forward and backward as in the invention of claim 6. At one of the rail ends, the other end of the guide plate is brought close to the other of the front and rear rail ends, respectively, and the guide plate is inserted into the gauge line broken line while holding the front and rear rail ends at the same time. Preferably, it is provided.

According to the fifth aspect of the present invention, since one end of the guide plate is fixed to one of the front and rear rail ends which are essential components of the expansion joint itself, there is no need for a special component such as a special plate for mounting a guard rail. , Without wasting the guide plate,
In addition, it is possible to securely attach and hold the front and rear rail ends in the longitudinal direction of the rail.

According to the sixth aspect of the present invention, the guide plate is only fixed to any of the front and rear rail ends and is not fixed.
The extension and contraction movement of the rail end in the longitudinal direction can be reliably held.

In the invention of claim 5, the fixing means at one end of the guide plate and the means for approaching the other end of the guide plate to the rail end are not specifically limited, but the invention of claim 7 is provided. A rail fixed at one end of the guide plate to one of the front and rear rail ends with bolts and nuts, and the other end of the guide plate is fixed to the floor plate at the other of the front and rear rail ends. It is preferable to bring them closer to the breath.

In this way, skill is not required,
The guide plate can be attached more easily and quickly, and it uses rail brace, which is a component originally required for installing the rail end, and can be provided at a low cost without requiring special components. it can.

In the sixth aspect of the present invention, the means for bringing both ends of the guide plate close to the rail ends is not specifically limited. Preferably, at least one of the ends is fixed to a rail brace fixed to a floor plate, and one end and the other end of the guide plate are brought close to one and the other of the front and rear rail ends.

In this manner, at least one end of the guide plate is fixed to the rail brace, and the guide plate is securely mounted. Further, since the rail brace is used, it is possible to provide the guide plate at a low cost without requiring any special parts. .

In the invention of claims 7 and 8, the specific structure of the rail brace and the fixing means are not limited.
As in the invention of claim 9, the rail brace is formed by raising the chin from the dovetail base, and the base is closely fitted into the dovetail groove formed on the floor plate, and the upper surface of the base is elastically contacted with a spring clip. The rail brace is fixed to the floor plate or the rail brace has a leg portion as in the invention of claim 10, and furthermore, the jaw portion is made to stand up from the base where the elongated hole is obliquely provided. A parallel fitting groove is obliquely provided, the leg is inserted into the fitting groove, and the elongated hole is inserted into a bolt protruding from the floor plate, and the rail brace is fixed to the floor plate by fastening with a nut. Is preferred.

In this manner, the rail brace can be securely fixed at a fixed position. As a result, the rail brace presses the front and rear rail end portions and the guide plate more than necessary in the direction perpendicular to the rail, so that the rail brace can be fixed. The present invention does not restrain the end of the rail from expanding and contracting in the longitudinal direction of the rail, or conversely make the guide plate unstable by providing a large gap between the front and rear rail ends and the guide plate.

In the tenth aspect of the present invention, the legs are slid in the obliquely inserted insertion grooves, so that the close range between the rail brace, the guide plate, and the rail end can be finely adjusted.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described. As shown in FIG. 1, floor boards 12, 12 ', 12' are fixed on sleepers 11, 11 ', 11' which are arranged at the center and on the left and right at intervals. Specifically, a dog nail or rail screw nail 1 is inserted through each mounting hole 13.
Fix at 3a.

As shown in FIGS. 1, 2, and 4, a dovetail groove 16 is provided in each of the center and left and right floor plates 12, 12 'and 12', and a mounting portion 18 having a gap 19 for engaging an end of a spring clip 17 is provided. . Specifically, a pair of stepped pieces 14 and 14 are provided on the upper surface of the center
A pair of flat pieces 14 ', 1'
4 'are opposed and fixed at intervals, and a dovetail groove 16 is formed inside the lower step 15 inside each stepped piece 14 and inside each flat piece 14'. Attachment portions 18 are protruded and fixed to the respective pieces 14 '.

By doing so, the seam narrow end 1 ', which will be described later,
Rail ends 1, 2 including 2 ', floor plates 12, 12', 1
When placed on 2 ', step pieces 14, 14, flat piece 1
4 ′, 14 ′,..., It is easy to position, and the dovetail groove 16 and the mounting portion 18 are attached to the floor plates 12, 12 ′,
It can be more easily manufactured than directly provided on 12 '.

As shown in FIG. 1, the front long rail 10
Is welded to form a front rail end 1. As shown in FIGS. 1 and 2, the rail end 1 has a seam narrow end 1 parallel to the longitudinal direction of the rail formed by vertically cutting one side surface of the head 1 a and the leg 1 c of the seam end and forming a thinner portion than the remaining portion 1 ″. , And this thin end 1 ′ is placed on a central floor plate 12, and as shown in FIG. 1, a leg 1 c having both legs 1 d and 1 e of the rail end 1 as shown in FIG. 1.
Is placed on the right floor plate 12 '.

As shown in FIG. 1, the rear long rail 20
One end of the receiving rail is welded to form the rear rail end 2. In this receiving rail, the seam end is bent in the shape of a letter as shown, and as shown in FIGS. 1 and 2, one side of the head 2a and the leg 2c of the seam end is vertically cut from the remaining portion 2 ". It has a narrow seam end 2 'parallel to the longitudinal direction of the rail, and this seam narrow end 2' is placed on the central floor plate 12, and the heads 1a, 2a of the seam narrow ends 1 ', 2' are placed. And leg 1
c, 2c are arranged in such a manner that the narrow ends 1 ', 2' are arranged in parallel with each other in the longitudinal direction of the rail, and both legs 2d, 2e of the rail end 2 are connected as shown in FIGS. Leg 2c
Is placed on the left floor plate 12 '. Bolt insertion holes 24, 24, 24 are formed in the abdomen 2b of the rail end portion 2. In FIG. 2, the opposing surfaces of the heads 1a, 2a and the legs 1c, 2c are brought into contact (light contact) to the extent that the rail ends 1, 2 can expand and contract in the longitudinal direction of the rail. May be approached.

As shown in FIGS. 2 and 4, portions of the heads 1a and 2a of the seam narrow end 1 'and the rail end 2 below the rail line a are inclined toward the abdomen 1b and 2b. It is formed on the inclined surfaces 1f and 2f.

One end of the guide plate 5 is fixed to the rail end 2. The guide plate 5 is made of, for example, a structural carbon steel which is the same material as the rail ends 1 and 2 or an elongated plate formed of a material having the same strength as the rail ends 1 and 2. As shown by reference numeral 4, the projection 7 has a projection 7 and a locking portion 9, and the projection 7 is formed by a narrow seam end 1 ′ of the front rail end 1 and each side recess 6 of the rear rail end 2, that is, an inclined portion. A side recess 6 formed by the surface 1f, the side surface of the abdomen 1b continuous thereto and the upper surface of the leg 1e of the leg 1c, and the inclined surface 2f formed by the side surface of the abdomen 2b continuous thereto and the upper surface of the leg 2e of the leg 2c. The engaging portion 9 has a shape that fits into the side recess 6 and the engaging portion 9 is capable of engaging the flange 4 ′ of the wheel 4 located at the rail gap portion b as shown in FIG. Angle of inclination β
The guide plate 5 has an inclined surface 9 'having a smaller angle α, and bulges downward 9 "below the inclined surface 9' from an extended line indicated by a thin line c. FIG.
Is formed, and the bolt insertion hole 2 is
6, 26, 26 are perforated.

One end of the convex portion 7 is in the side concave portion 6 of the rail end portion 2 as shown in FIG. 4, and the other end of the convex portion 7 is in the side concave portion 6 of the seam narrow end 1 'as shown in FIG. Fig. 1, 3
The guide plate 5 for guiding the wheel 4 to the gauge line a is hung on the gauge line broken line portion b as shown by, and the bolt 27 is inserted into the bolt insertion holes 26 and 24 as shown in FIG. The nut 22 is tightened via the washer 21 to fix one end of the guide plate 5.

As shown in FIGS. 1 and 4, left and right floor boards 12 ',
Washers 29 and 29 are attached to the 12 ', and rail breaths 8 and 8' are attached to the center floor plate 12 as shown in FIGS. As shown in FIG. 2, the legs 1c, 2c of the narrow seams 1 ', 2' are locked with play 37 by the rail brace 8, 8 'as shown in FIG. 2, and the guide plate 5 and the thin seam 2' are locked. Rail brace 8 with play 37 on abdomen 2b,
8 'is approached, and the guide plate 5 is approached with play 37 to the seam narrow end 1'.

As shown in FIGS. 1 and 4, each washer 29 is formed by extending an L-shaped part 32 having a notch 31 from a dovetail base 30 and a rail brace 8 as shown in FIGS. , 8 'are formed by erecting a jaw portion 35 having a notch portion 34 from a dovetail base 33, and flat bases 14', 1 ', each of which has its base 30 fixed to the left and right floor plates 12', 12 '.
4 ', each notch 31 is closely fitted, and each notch 31 is brought close to each upper surface and each side surface of each leg of the rail ends 1, 2 with a play 37, and as shown in FIGS. Each dovetail groove 1 of the stepped piece 14, 14 in which each base 33 is fixed to the central floor plate 12.
6, the notches 34 approach the upper surfaces and the side surfaces of the legs 1c and 2c with play 37, and the jaws 35 of the rail breath 8 approach the guide plate 5 with play 37. Connect the jaw 35 of the breath 8 'to the seam 2'
The guide plate 5 and the narrow joints 1 ', 2' are sandwiched between the rail brace 8, 8 'by approaching the abdomen 2b with play 37. In this way, the notch 31 of the washer 29 is attached to the leg of the rail end 1, 2 and the notch 3 of the rail brace 8, 8 '.
4 to the legs 1c and 2c, the jaws 35 of the rail brace 8 and 8 'to the guide plate 5, the seam narrow end 2', and the guide plate 5
The rail end portions 1 and 2 can be extended and contracted very easily when they are brought closer to the rail end portions 1 with the play 37, respectively, than when they are brought into light contact with each other. It is valid.

Further, one end of a known "-" shaped spring clip 17 as shown in FIG. 1 is inserted into the gap 19, and the other end is connected to the base 30 of each washer 29 and the base of the rail brace 8, 8 '. Makes contact with 33.

Here, each washer 29, rail brace 8, 8 '
Are tightly fitted in each dovetail groove 16 and each spring clip 1
It is pressed down and fixed by the spring pressure of 7,
The rail ends 1 and 2 including the seam narrow ends 1 'and 2'
9 and the notches 31, 34 of the rail brace 8, 8 '
To the expansion joint 3
In one embodiment, the guide plate 5 has a bolt 27 and a nut 22 at one end.
At the other end, the jaw 35 of the rail brace 8 approaches with play 37, and the seam narrow end 2 '
In the abdomen 2b, the jaws 35 of the rail brace 8 'play 37.
The rail ends 1 and 2 are not restrained from expanding and contracting in the longitudinal direction of the rails as the long rails 10 and 20 expand and contract.

Each notch 31, 34 and each leg 1c,
2c, the jaws 35 of the rail brace 8, 8 'and the guide plate 5, the abdomen 2b, and further the guide plate 5 and the seam narrow end 1'.
Are not formed, and the rail ends 1 and 2 are in contact (light contact) as long as the movement is possible without being prevented from extending and contracting in the longitudinal direction of the rail. May be brought into contact with each other.

In the above embodiment, one end of the guide plate 5 is fixed to the rear rail end 2 by the bolt 27 and the nut 22 and the other end is brought closer to the front rail end 1 by the rail brace 8. Conversely, one end of the guide plate 5 may be fixed to the front rail end 1 by bolting or the like, and the other end of the guide plate 5 may be brought close to the rear rail end 2 by the rail brace 8.

FIGS. 5 and 6 show a second embodiment, which is the same as the above-described embodiment in principle. Omitted, and differences are described.

In this embodiment, as shown in FIG. 6, the rail brace 8 and the washer 29 are fixed to the left floor plate 12 ', and the inner rail brace 8, which is fixed to the center floor plate 12 and the floor plate 12', respectively. 8, one end of the guide plate 5 is fixed by welding, and the other end of the guide plate 5 is placed near the seam narrow end 1 ′ and the rear rail end 2. The means for fixing both ends of the guide plate 5 to the rail brace 8 may be bolted, as long as at least one end of both ends of the guide plate 5 is fixed to the rail brace, The other end may be fixed to the rail brace, or the rail brace may be close to the guide plate without being fixed as in the first embodiment. The guide plate 5 can be securely mounted by fixing both ends of the guide plate 5 to the rail brace.

FIGS. 7 to 9 show rail rails 8, 8 ', washers 29 and floor plate 1 in the first embodiment.
This is a modified example in which the fixing means is different from 2, 12 ', 12'. The same reference numerals are given to the same parts as those in the first embodiment, detailed description thereof will be omitted, and differences will be described.

A fitting groove 41 obliquely provided on the floor plates 12, 12 ', 12' is provided in each of the bases 33 of the rail brace 8, 8 'and the washer 29 in which the jaw 35 is raised from the base 33. 38, and elongated holes 40, 45 for bolt insertion parallel to the fitting grooves 41, 38 are formed, and the leg 39 is inserted into the fitting groove 41, and the leg 4 is formed.
4 into the fitting holes 38 and the floor plate 12,
The bolts 42, 46 protruding from the 12 ', 12'
0, 45 are extrapolated, and the legs 39, 44 are inserted into the insertion grooves 41, 38.
To adjust the position of the rail brace 8, 8 'and each washer 29 in the direction perpendicular to the rail.
And the nuts 43 and 47 are fastened. According to this, the rail brace 8, 8 'and each washer 29 can be securely fixed, and the close range of the opposing surfaces of the rail brace 8, 8', the guide plate 5, and the narrow joints 1 ', 2' and the rail brace 8 , 8 ', and the proximity range of each notch 31 of each washer 29 and each rail end can be adjusted. In the second embodiment, the rail breaths 8 and 8 ', the washer 29 and the floor plate 12,
The means for fixing to 12 ', 12' may be as in the above-mentioned modified example.

In any of the embodiments, both ends of the guide plate 5 are not fixed to both the rail ends 1 and 2, but the guide plate 5 is fixed to one of the rail ends 1 and 2. If the rail ends, the guide plate 5
At the same time, the rail moves in the longitudinal direction as indicated by the one-dot and two-dot chain lines in FIG. 1, but the side recess 6 moves along the guide plate 5 at the end of the rail where the guide plate 5 is not fixed. The longitudinal distance L of the side recess 6 at the rail end to which the guide plate 5 is not fixed is set within a range in which the rail end can be moved. Is movable in the longitudinal direction. Further, in any of the embodiments, the wheel 4 advances with the wheel flange 4 'along the gauge line a at one end of the rail. When the wheel 4 at the one-dot chain line position moves laterally as shown by the two-dot chain line in the gauge line broken line part b as shown in FIG. 3, the wheel flange 4 ′ is locked by the locking part 9 and advances. Subsequently, the vehicle travels along the gauge line a at the other end of the rail. If the angle of inclination a of the locking portion 9 is larger than the angle of inclination β of the wheel flange 4 ′, the wheel 4 may be lifted and enter the gap between the gauge lines b, but in the present embodiment, the angle α Is smaller than the inclination angle β, there is no danger of this, and the vehicle can travel safely.
As shown by the imaginary line d, when the heads of the rail ends 1 and 2 are formed substantially vertically below the gauge line a like a normal rail, the upper edge of the guide plate 5 is thin due to the angle α. , The mechanical strength is reduced, but in the present embodiment, the lower part of the gauge line a of the heads 1a, 2a is inclined toward the abdomen 1b, 2b. The mountain shape is thick and the mechanical strength can be increased.
Further, if the lower part of the inclined surface 9 'shown in FIG. 3 extends like an inclined extension line shown by a thin line c, the guide plate 5 becomes thinner and the mechanical strength is reduced, but in the present embodiment, the inclined surface 9' in the present embodiment.
Is bulged outward from the inclined extension line, the guide plate 5 becomes thicker, and the mechanical strength is further increased.

[0053]

According to the first aspect of the present invention,
Since the wheels can travel safely without entering the gap between the gauge lines and riding on the rails, and the seam narrow ends formed parallel to the rail longitudinal direction are close to each other in parallel to the rail longitudinal direction. The length of the rail end in the longitudinal direction can be shortened compared to the example, can be provided at a low cost, and can be easily installed and maintained without providing facilities such as guard rails as in other conventional examples. Can be.

According to the second aspect of the invention, in addition to the effects of the first aspect, the structure of the wheel guiding means can be manufactured simply and at low cost.
Moreover, the wheel guiding means can be easily, quickly and reliably positioned.

According to the third aspect of the invention, in addition to the effect of the second aspect, the wheels can be reliably guided, and the mechanical strength of the locking portion can be increased.

According to the invention of claim 4, in addition to the effect of the invention of claim 3, the mechanical strength of the guide plate can be further increased.

According to a fifth aspect of the present invention, in addition to the effect of the first aspect, the wheel guiding means is securely mounted without requiring special parts, and the front and rear rail ends are held in the longitudinal direction of the rail. it can.

According to the invention of claim 6, in addition to the effect of the invention of claim 1, the front and rear rail ends can be reliably held in the longitudinal direction of the rail.

According to the seventh aspect of the present invention, in addition to the effect of the fifth aspect of the present invention, the wheel guiding means can be mounted more easily and quickly without requiring any special parts.

According to the eighth aspect of the present invention, in addition to the effect of the sixth aspect of the present invention, the wheel guiding means can be securely mounted without requiring any special parts.

According to the ninth and tenth aspects of the present invention, in addition to the effects of the seventh and eighth aspects, the rail brace is securely fixed at a fixed position, so that the rail brace is displaced in a direction perpendicular to the rail and the front and rear rail ends. Part and the guide plate more than necessary, as a result, restricting the front and rear rail ends from expanding and contracting in the longitudinal direction of the rail, and conversely, leaving a large gap between the front and rear rail ends and the guide plate. Therefore, the guide plate can be prevented from becoming unstable. Further, according to the tenth aspect, it is possible to finely adjust the proximity range between the rail brace, the guide plate, and the rail end.

[Brief description of the drawings]

FIG. 1 is a plan view of a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along the line AA in FIG.

FIG. 3 is a BB enlarged end view of the same.

FIG. 4 is an enlarged sectional view taken on line CC of the above.

FIG. 5 is an enlarged sectional view taken along line AA in the second embodiment of the present invention.

FIG. 6 is an enlarged sectional view taken along the line CC in FIG.

FIG. 7 is a plan view showing a modified example of the means for fixing the rail brace, the washer and the floor plate in the embodiment of the present invention.

FIG. 8 is an enlarged sectional view taken along the line DD in FIG.

FIG. 9 is an enlarged EE sectional view of the above.

FIG. 10 is an explanatory diagram of a conventional example.

FIG. 11 is an explanatory view of another conventional example.

[Explanation of symbols]

Reference Signs List 1 rail end 1 'seam narrow end 1a head 1b abdomen 1c leg 1f inclined surface 2 rail end 2' seam narrow end 2a head 2b abdomen 2c leg 2f inclined surface 3 telescopic seam 4 wheel 4 'wheel flange 5 Guide plate 6 Side recess 7 Convex portion 8 Rail brace 8 'Rail brace 9 Locking portion 9' Inclined surface 9 "Down 12 Floor plate 12 'Floor plate 16 Dovetail groove 17 Spring clip 22 Nut 27 Bolt 33 Base 35 Jaws 39 Legs 40 Slotted hole 41 Fitting groove 42 Bolt 43 Nut a Rail line b Rail line broken line c Inclined extension line α Angle of locking part β Angle of wheel flange inclination

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shoichi Semba 3-24-10 Nishikubo, Musashino City, Tokyo (72) Inventor Kenzo Fujisawa 3374-9 Minami Ogishima, Koshigaya City, Saitama Prefecture

Claims (10)

[Claims] 1. A narrow joint is formed at each of the front and rear rail ends in parallel with the longitudinal direction of the rail, and the narrow joints are closely adjacent to each other in parallel with the longitudinal direction of the rail to form a telescopic joint. A rail expansion / contraction seam device, wherein a guide plate for guiding a wheel to a rail line is provided in a gap between rails of the expansion / contraction seam while holding the rail end in the rail longitudinal direction. 2. The guide plate is a plate material having a locking portion capable of locking a wheel flange of a wheel positioned at a rail gap, and a projection fitted into a side recess at front and rear rail ends. The telescopic joint device for a rail according to claim 1, wherein: 3. The locking portion has an inclined surface having an angle smaller than the angle of inclination of the wheel flange, and the side recessed portions of the heads at the front and rear rail ends are directed downward to the abdomen. The telescopic joint device for a rail according to claim 2, wherein the joint is formed by an inclined surface, the abdomen, and the upper surface of the leg. 4. The expansion / contraction joint device for a rail according to claim 3, wherein a portion below the inclined surface of the locking portion is bulged outward from an extension line of the inclination. 5. An end of the guide plate is fixed to one of the front and rear rail ends, and the other end of the guide plate is brought close to the other of the front and rear rail ends to extend and retract the front and rear rail ends. The rail joint according to claim 1, wherein a guide plate is provided in the gap between the gauge lines while holding. 6. An extension and contraction movement of the front and rear rail ends by bringing one end of the guide plate close to one of the front and rear rail ends and bringing the other end of the guide plate close to the other of the front and rear rail ends. The rail joint according to claim 1, wherein a guide plate is provided in the gap between the gauge lines while holding. 7. One end of the guide plate is fastened and fixed to one of the front and rear rail ends with bolts and nuts, and the other end of the guide plate is fixed to the floor plate at the other of the front and rear rail ends. 6. The vehicle according to claim 5, wherein the rail is brought closer to the vehicle.
Telescopic joints for rails. 8. At least one of one end and the other end of the guide plate is fixed to a rail brace fixed to a floor plate, and one end and the other end of the guide plate are brought close to one and the other of the front and rear rail ends. The telescopic joint device for a rail according to claim 6, wherein: 9. The rail brace is formed by raising a jaw portion from a dove mortise-shaped base, closely fitting the base into a dovetail groove formed in a floor plate, and furthermore, elastically contacting the base upper surface with a spring clip. The telescopic joint device for a rail according to claim 7 or 8, wherein the rail is fixed to a floor plate. 10. The rail brace has a leg portion, and further comprises a jaw portion rising from a base having a slender hole obliquely provided,
A slanted insertion groove parallel to the elongated hole is provided on the floor plate, the leg portion is inserted into the insertion groove, and the elongated hole is inserted into a bolt protruding from the floor plate, and the nut is fastened with a nut. The rail breath is fixed to a floor plate.
Or a telescopic seam device with 8 rails.