JP2008231793A - Connection structure of tongue rail and switch rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection structure of a tongue rail and a switch rod capable of connecting them mutually, simply, and securely. <P>SOLUTION: This connection structure is constituted by engaging a channel 14c formed in a leg part 14b of a connection plate 14 by holding a tip 16a of a supporting body 16 fixed on an upper face 6a of the switch rod 6 in the leg part 14b of the connection plate 14 from below and the supporting body 16 mutually and turnably. A close adhesion part 14a adheres to a belly part 5a of the tongue rail 5 to position in the vertical direction. The connection plate 14 is constituted as a block provided with the close adhesion part 14a adhering closely to the belly part 5a of the tongue rail 5 like a belt and the leg part 14b having the same height as that of the close adhesion part 14a and protruding. Since the belly part 5a of the tongue rail 5 and the supporting body 16 oppose properly and mutually in the horizontal direction across the connection plate 14, force of the supporting body 16 fixed on the switch rod 6 is equally given to any position in the vertical direction of the belly part of the tongue rail 5 to support the tongue rail 5 from a side securely. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a connecting structure for rolling rods.

As shown in FIG. 4, the railroad track branching device is constructed such that a basic rail 3 is laid on a sleeper 1 via a floor plate 2, a lead rail 4 is laid on the inner side of the basic rail 3, and a lead rail 4 has a tip. The pair of tongrels 5 are slidably arranged. The pair of tongrels 5 are connected to each other by a rolling rod 6 disposed below the basic rail 3 and the tongrel 5 so as to cross the track.
Various connecting structures between the tongrel 5 and the rolling bar 6 have been conventionally devised. As shown in FIG. 5, the most general connection structure is fixed to the Tongrel 5 by bolts and nuts, and is fixed to the connecting rod 9 extending to the side of the Tongrel 5 and the rolling rod 6 by welding. And a connection fitting 7 having a U-shape for sandwiching the connection plate 9 from above and below. In addition, circular through holes are formed in the overlapping portions of the connecting plate 9, the connecting fitting 7, and the rolling rod 6, and bolt nuts 8 are inserted into the through holes to be connected. In consideration of the tightening operation, the bolt nut 8 is mounted so that the bolt is rolled and inserted from below to above the rod 6 and tightened from above. Further, in order to prevent the bolt from falling off when the bolt is broken, a drop-off prevention fitting 10 that supports the bolt head from below is fixed to the rolling rod 6 and the connecting fitting 7. (For example, refer to Patent Document 1).

Japanese Utility Model Publication No. 57-26402 (FIGS. 1 and 2)

However, the most common conventional connecting structure between the Tongrel 5 and the rolling rod 6 is that a connecting plate 9 fixed to the Tongrel 5 and a connecting fitting fixed to the rolling rod 6 are bolts. Since the nut 8 is used for connection, the shaft portion of the bolt receives a shearing force when the tongrel 5 is operated. Accordingly, it is necessary to frequently inspect and replace the bolt nut 8 in order to prevent the bolt from being broken due to stress concentration in the thread groove of the bolt. Further, it is necessary to attach and detach the bolt and nut 8 each time the bolt and nut 8 is replaced.
This invention is made | formed in view of the said subject, The place made into the objective uses a bolt nut for the connection of the connection board fixed to the Tongleil, and the connection metal fitting fixed to the rolling rod. Without connecting the two easily and reliably.

  In order to solve the above-described problems, the connection structure of the tongrel and the rolling rod according to the present invention is rotated by a connecting plate fixed to the tongrel and a support fixed to the falling rod. A possible connecting structure is constructed without using a separate rotating shaft such as a bolt nut or a connecting pin, and the connecting structure is prevented from coming off in the vertical direction without using a separate drop-off prevention fitting. is there. Moreover, the structure is such that the force from the connecting plate can be evenly applied to any position in the vertical direction of the abdomen of the tongue.

(Aspect of the Invention)
The following aspects of the present invention exemplify the configuration of the present invention, and will be described separately for easy understanding of various configurations of the present invention. Each item does not limit the technical scope of the present invention. Therefore, the technical aspects of the present invention also apply to those in which some of the constituent elements in each section are replaced, deleted, or other constituent elements are added while taking into account the best mode for carrying out the invention. It can be included in the range.

(1) A connecting structure in which a tongrail and a rolling rod of a branching device of a railway track are connected via a connecting plate, the connecting plate having a T shape in a plan view, and the abdomen of the tongrel It is comprised as a block provided with the adhesion part which sticks in the shape of a belt, and the leg part which has a height dimension equivalent to the height dimension of the adhesion part, and the upper surface of the rolling bar A support body that engages with the connecting plate is fixed with a space to the upper surface of the rolling bar, and the support member is configured such that a leg portion of the connecting plate embraces the tip of the support member from below. A groove that is open upward and laterally to engage in a pivotable manner in the horizontal direction, and the groove of the leg of the connecting plate engages the support of the rolling rod, and The connection portion of the connection plate is fixed in close contact with the abdomen of the Tongrel, so that the connection The connection structure between the vertical and the tongue rail and the rolling iron rod longitudinal retaining is performed with respect to the point lock rod (claim 1).

The connecting structure of the tongrel and the rolling bar described in this section is such that the legs of the connecting plate embrace the tip of the support from below and the grooves formed on the legs of the connecting plate. The support fixed to the upper surface of the rod is engaged with the support plate in a horizontal direction so that the connection plate and the support support each other without using separate rotating shafts such as bolts and nuts and connection pins. It constitutes a pivotable connecting structure.
In addition, the legs formed on the legs of the connecting plate embrace the front end of the support from below, and the grooves formed on the legs of the connecting plate and the support fixed to the upper surface of the rolling bar rotate horizontally. In a state where it is movably engaged, the connecting plate falls off from the support, but the contact portion of the connecting plate comes into close contact with the abdomen of the tongue and is positioned in the vertical direction. The connecting plate is prevented from coming off in both the vertical direction and the longitudinal direction of the rod. Therefore, a drop-off preventing metal fitting for a separate rotating shaft such as a bolt nut or a connecting pin is not necessary.
Further, the connecting plate has a T-shape in plan view, and includes a close contact portion that is in close contact with the abdomen of the Tongrel in a band shape, and a leg portion that protrudes with a height dimension equivalent to the height dimension of the close contact section. It is comprised as a block, and a support body engages with the groove | channel formed in the leg part, and the abdominal part and support body of a Tongrel face the horizontal direction on both sides of a connection board. Therefore, the force from the support body fixed to the rolling rod can be equally applied to any position in the vertical direction of the abdomen of the Tongrel via the connecting plate. Moreover, since the connecting plate is configured as a block, it is easy to give the necessary strength, and the tongrel can be reliably supported. In addition, the height dimension equivalent to the height dimension of the close contact portion has a height and a width for the close contact portion to closely adhere to the abdomen of the tongue, and a leg portion protruding from the close contact portion. However, although there may be a slight increase / decrease from the height dimension of the close contact portion, it means that it protrudes without greatly increasing / decreasing.

(2) The support has a shape in which a wide-width portion having a circular cross section is formed at a tip of a narrow-width portion having a constant width in plan view, and the groove of the leg portion of the connecting plate includes the wide-width portion and the narrow-width portion. A connecting structure of a tongrel and a rolling bar formed in a shape that is copied with a predetermined interval for each of the portions (claim 2).
In the connection structure of the tongrel and the rolling rod described in this section, the support has a shape in which a wide-width portion having a circular cross section is formed at the tip of a narrow-width portion having a constant width in plan view. Since the groove of the leg portion is formed in a shape that follows the predetermined width with respect to each of the wide width portion and the narrow width portion, the leg portion of the connecting plate embraces the tip of the support from below, When the support body is engaged with the groove of the leg portion of the connecting plate, the connecting plate is engaged with the rolling bar so as to be rotatable in the horizontal direction. In other words, the widened portion of the support that is engaged with the groove of the leg of the connecting plate functions as a rotating shaft that connects the rolling rod and the connecting plate, and the connecting plate can be rotated in the horizontal direction with respect to the support. As a result, the sliding movement of the Tongrel is performed smoothly.
As for the narrow portion, at least the portion adjacent to the widened portion is narrower than the widened portion, and the undercut portion is formed together with the groove of the leg portion of the connecting portion, so that the connecting plate is prevented from coming off from the leg portion. As long as it is a thing, it does not necessarily need to be a fixed width over the whole, and the width may change.

(3) The support body is formed by fixing a widened portion made of a columnar member or a cylindrical member vertically up and down at a tip of a narrow portion made of a plate or rod having a constant width in plan view, A tongrel is provided between the support and the groove of the leg of the connecting plate so that the connecting plate can be rotated in the horizontal direction with respect to the support around the widened portion. And a connecting structure of the rolling bar (claim 3).
The connecting structure of the tongrel and the falling rod described in this section is such that the legs of the connecting plate engage with the legs of the connecting plate so as to embrace the abdomen of the supporting member from below. A gap is provided between the groove and the connecting plate so that the connecting plate can rotate in the horizontal direction with respect to the support centering on the widened portion. Therefore, the connecting plate engages with the rolling rod so as to be rotatable in the horizontal direction, and the widened portion of the support member engaged with the groove of the leg portion of the connecting plate connects the rolling rod and the connecting plate. It functions as a rotating shaft, and the connecting plate can be rotated in the horizontal direction with respect to the support so that the tongrel slide operation is performed smoothly.
In addition, about the board | plate material or bar | plate material which comprises a narrow part, at least the adjacent part with a wide part is narrower than an abdominal part, and it forms an undercut part with the groove | channel of the leg part of a connection part, and the leg part of a connection board As long as it is prevented from slipping out, the width does not necessarily have to be constant throughout, and the width may be changed. It is also possible to configure the abdominal part with a spherical member.

(4) A protrusion extending in the vertical direction is formed on the side surface of the support body, and a recess is formed in the groove formed in the leg portion of the connecting plate with a predetermined distance from the protrusion. A connecting structure of a tongrel and a rolling bar (claim 4).
The connecting structure of the tongrel and the rolling bar described in this section is not limited to the side surface of the support body even if the widened portion formed at the tip of the support body falls off from the constant width portion. The support and the leg of the connecting plate are connected by engagement of a protrusion extending in the vertical direction with the recess formed in the groove of the leg of the connecting plate and spaced by a predetermined distance from the protrusion. State is maintained. In addition, suppose that the space | interval which does not prevent rotation operation | movement in the horizontal direction of a connecting plate centering on the wide part of a support body is provided between a protrusion and a recessed part.

(5) The connecting portion of the connecting plate, wherein the contact portion of the connecting plate has a shape following a curved surface extending from the abdominal portion of the tongrel to the upper surface of the base portion (claim 5). ).
The connection structure of the tongrel and the rolling bar described in this section is such that the close contact portion of the connecting plate has a shape following the curved surface extending from the abdomen of the tongrel to the upper surface of the base portion. It is possible to reliably apply the driving force received from the falling rod to the abdomen of the Tongrel. Therefore, when the weight of the railway vehicle is added to the Tongrel, the Tongrel can be reliably supported from the side.

(6) When the leg of the connecting plate is attached to or detached from the support using the space between the upper surface of the rolling bar and the lower surface of the support. A connection structure between the tongue and the rolling bar, wherein a notch for avoiding interference between the leg and the widened portion of the support is formed (Claim 6).
The connection structure between the Tongrel and the falling rod described in this section is configured so that the contact area between the tip of the support and the groove of the leg of the connection plate is as large as possible by configuring the connection plate as a block. Thus, it is possible to smoothly attach and detach the leg portion of the connecting plate with respect to the support body while stably holding the connecting plate.

  Since this invention was comprised in this way, it can connect both easily and reliably, without using a bolt nut for the connection of the connection board fixed to the Tongleil, and the connection metal fitting fixed to the rolling rod. It becomes possible.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Here, parts that are the same as or equivalent to those of the prior art are denoted by the same reference numerals, and detailed description thereof is omitted.
As shown in FIG. 1, the connecting structure 12 of the rolling bar according to the embodiment of the present invention is such that the tongrel 5 and the rolling bar 6 are connected via a connecting plate 14. . As shown in FIG. 3, the connecting plate 14 has a T-shape in a plan view, a plate-like contact portion 14 a that adheres in a band shape to the abdomen 5 a of the Tongrel 5, and a height dimension Ha of the contact portion 14 a. It is comprised as a block provided with the leg part 14b which has the equivalent height dimension Hb and protrudes. And the contact | adherence part 14a is fixed with the volt | bolt nut with respect to the abdominal part 5a of the Tongrel 5 (refer FIG. 1). In addition, the part shown with the code | symbol 14f in FIG.3 (b) is an insertion hole of the volt | bolt for fixing with a tongrel.

  Here, the height dimension Hb equivalent to the height dimension Ha of the close contact portion 14a has a height and a width for the close contact portion 14a to be in close contact with the abdomen 5a of the tongrel 5 in a band shape. This means that the leg portion 14b protruding from the contact portion 14a protrudes without significantly increasing or decreasing from the height dimension Ha of the contact portion 14a. In the illustrated example, the contact portion 14a of the connecting plate 14 has a shape that follows a curved surface that continues from the abdominal portion 5a of the Tongrel 5 to the upper surface 5b of the base plate, and not only the contact portion 14a of the connecting plate but also the leg portion 14b. As for, also has a shape following the upper surface 5b of the base portion. And since the base part upper surface 5b of the tongrel 5 is an inclined surface that descends from the abdomen 5a toward the base part end, the height dimension Hb of the leg part 14b with respect to the height dimension Ha of the contact part 14a. Has increased slightly. However, if necessary, Ha = Hb may be used, and the height dimension Hb of the leg portion 14b may be formed to be slightly smaller than the height dimension Ha of the contact portion 14a.

  Further, as shown in FIG. 2, a support body 16 that is engaged with the connecting plate 14 is fixed to the upper surface 6 a of the rolling bar 6. In the illustrated example, the support 16 is a cylindrical member having a diameter (diameter D) larger than that of the narrow width portion 16b having a constant width at the tip of the narrow width portion 16b having a constant width W made of an L-shaped plate material when viewed from the side. The widened portion 16a is fixed by welding with the axial direction facing up and down. Further, the base end portion 16c of the support body 16 is welded to the upper surface 6a of the rolling rod 6, and a space is formed between the widened portion 16a and the narrow width portion 16b of the supporting body 16 and the upper surface 6a of the rolling rod 6. S is secured. Further, a protrusion 16 d extending in the vertical direction is formed on the side surface of the support 16. In the illustrated example, the protrusion 16 d is configured by welding a cylindrical member having a smaller diameter than the widened portion 16 a to the side surface of the support 16. In addition, the support body 16 can be comprised not only with a board | plate material but with a rod, as long as required intensity | strength is ensured. Further, the widened portion 16a is not limited to the columnar member, but may be a cylindrical member or a spherical member as long as necessary strength is ensured.

On the other hand, as shown in FIG. 3, the leg portion 14b of the connecting plate 14 is engaged with the support body 16 so as to be pivotable in the horizontal direction by embedding the widened portion 16a at the tip of the support body 16 from below. For this purpose, a groove 14c opened upward and laterally is formed. The groove 14c is formed in a shape that follows each of the widened portion 16a and the narrowed portion 16b with a predetermined interval. Here, the gap between the widened portion 16 a and the groove 14 c is ensured to be a minimum gap necessary for enabling the connecting plate 14 to rotate in the horizontal direction with respect to the support 16. Further, the gap g (FIG. 1B) between the narrow portion 16b and the groove 14c is formed to be wider than the gap with the wide portion 16a. Furthermore, a concave portion 14d extending in the vertical direction is formed in the groove 14c, following the protrusion 16d with a predetermined interval. Here, an interval is provided between the projection 16d and the recess 14d in the horizontal direction of the connecting plate 14 around the widened portion 16a of the support body 16 so as not to hinder the rotating operation.
In the example shown in the figure, the groove 14c is formed as a bottomed groove that opens upward and laterally. However, as long as the groove 14c is open upward and laterally and the required strength of the connecting plate 14 is ensured. A groove penetrating in the vertical direction may be used.

  In the illustrated example, the widened portion 16a has a diameter of 40 mm, the diameter of the portion following the widened portion 16a of the groove 14c is 42 mm, the narrow width portion 16b has a width of 25 mm, and the portion of the narrowed portion 16b of the groove 14c has a width of 33 mm ( Therefore, the gap g is 3 mm), the diameter of the protrusion 16d is 9 mm, and the portion following the protrusion 16d of the groove 14c has a radius of 10 mm. Further, SS400 or SM400A is used for the rolling rod 6, SS400 is used for the connecting plate 14, and the widened portion 16 a of the support 16 is made by heat-treating S45C (HS45 to 55).

As shown in FIG. 1, the leg portion 14 b of the connecting plate 14 rolls and engages with the support 16 of the rod 6, and the contact portion 14 a of the connecting plate 14 is in close contact with the abdomen portion 5 a of the tongrel 5. Thus, the connecting plate 14 is prevented from coming off in the vertical direction of the support 16.
When connecting the Tongrel 5 and the rolling rod 6, the space S between the upper surface 6 a of the rolling rod 6 and the lower surface of the support 16 is used, and the leg portion 14 b of the coupling plate 14 is used. The groove 14c is fitted into the support 16, and then the contact portion 14a of the connecting plate 14 is brought into close contact with the abdomen 5a of the Tongrel 5 and the connecting plate 14 and the Tongrel 5 are fixed by bolts and nuts. Further, when removing the Tongrel 5 and the rolling bar 6, the order is reversed. In order to avoid interference between the leg portion 14b and the widened portion 16a of the support body 16 when the leg portion 14b of the connection plate 14 is attached to or detached from the support body 16, the support body 16 A notch 14e (FIG. 3A) is formed to avoid the above.

Now, according to the embodiment of the present invention having the above-described configuration, the following operational effects can be obtained.
First, the leg portion 14b of the connecting plate 14 is fixed to the groove 14c formed in the leg portion 14b of the connecting plate 14 and the upper surface 6a of the rolling bar 6 so as to embrace the tip 16a of the support 16 from below. Since the support 16 is engaged with the support 16 so as to be rotatable in the horizontal direction, the connection plate 14 and the support 16 can be rotated with each other without using separate rotating shafts such as bolts and nuts and connection pins. Can be configured. Further, the connecting plate 14 is prevented from coming off with respect to the longitudinal direction of the rolling bar 6 (the left-right direction in FIG. 1A).

  Further, the support 14 is fixed to the groove 14 c formed in the leg portion 14 b of the connection plate 14 and the upper surface 6 a of the rolling bar 6 so that the leg portion 14 b of the connection plate 14 embraces the tip of the support 16 from below. In a state in which the body 16 is pivotably engaged in the horizontal direction, the connecting plate 14 falls off from the support body 16, but the close contact portion 14 a is in close contact with the abdominal portion 5 a of the Tongrel 5, and the vertical direction. As a result of this positioning, the connecting plate 14 is prevented from coming off with respect to the vertical direction of the rolling bar 6 (vertical direction in FIG. 1A). For this reason, the drop-off prevention metal fitting for separate rotating shafts, such as a bolt nut or a connection pin, becomes unnecessary.

  Further, the connecting plate 14 has a T-shape in plan view, and has a close contact portion 14a that is in close contact with the abdomen 5a of the Tongrel 5 in a band shape, and a height dimension Hb that is equivalent to the height dimension Ha of the close contact portion 14a. It is comprised as a block provided with the leg part 14b which protrudes, and when the support body 16 engages with the groove | channel 14c formed in the leg part 14b, the abdominal part 5a and the support body 16 of the tongrel 5 are connected. 14 in the horizontal direction. Therefore, the force from the support body 16 fixed to the rolling rod 6 can be equally applied to any position in the vertical direction of the abdomen 5a of the Tongle rail 5 via the connecting plate 14. In addition, since the connecting plate 14 is configured as a block, it is easy to give necessary strength, and the tongrel 5 can be reliably supported.

  Further, the support 16 has a shape in which a widened portion 16a having a circular cross section is formed at the tip of a narrow portion 16b having a constant width W in plan view, and the groove 14c of the leg portion 14b of the connecting plate 14 is formed by the widened portion 16a. And the narrow portion 16b are formed in a shape that follows a predetermined interval, so that the leg portion 14b of the connecting plate 14 embraces the tip of the support body 16 from below, so that the connecting plate 14 When the support body 16 is engaged with the groove 14c of the leg portion 14b, the connecting plate 14 is engaged with the rolling bar 6 so as to be rotatable in the horizontal direction. That is, since the widened portion 16a engaged with the groove 14c of the leg portion 14b of the connecting plate 14 functions as a rotating shaft that connects the rolling rod 6 and the connecting plate 14 in the same manner as a bolt nut, a pin, and the like. Similar to the conventional connection structure, the sliding motion of the Tongle rail 5 is performed smoothly.

  Further, when the support body 16 is engaged so that the leg portion 14b of the connecting plate 14 embraces the abdominal portion 16a of the support body 16 from below, the groove between the narrow width portion 16b of the support body 16 and the leg portion 14b of the connecting plate 14 is obtained. A gap g for allowing the connecting plate 14 to rotate in the horizontal direction with respect to the support body 16 around the widened portion 16a is provided between the portion following the narrow width portion 16b of 14c. Therefore, the connecting plate 14 is engaged with the tipping rod 16 so as to be rotatable in the horizontal direction, and the widened portion 16a connects the tipping rod 6 and the connecting plate 14 in the same manner as the bolt nut, the pin and the like. It functions as a rotating shaft, and the sliding motion of the Tongrel 5 is smoothly performed as in the conventional connection structure.

  A protrusion 16d extending in the vertical direction is formed on the side surface of the support body 16, and a groove 14c formed in the leg portion 14b of the connecting plate 14 is a recess 14d that follows the protrusion 16d with a predetermined interval. Therefore, even if the widened portion 16a formed at the tip of the support body 16 falls off from the narrow-width portion 16b having a constant width, the side surface of the support body 16 is moved vertically. Due to the engagement between the protrusion 16d extending and the recess 14d formed in the groove 14c of the leg 14b of the connecting plate 14, the connected state of the support 16 and the leg 14b of the connecting plate 14 is maintained. Further, by providing an interval between the projection 16d and the recess 14d in the horizontal direction of the connecting plate 14 around the widened portion 16a of the support 16 so as not to prevent the rotation operation, the projection 16d and the recess 14d. Functions as a drop-off prevention means in an emergency.

Further, since the contact portion 14a of the connecting plate 14 has a shape that follows the curved surface that continues from the abdominal portion 5a of the Tongrel 5 to the upper surface 5b of the base portion, the contact area between the Tongrel 5 and the connecting plate 14 increases. In addition, the tongrel 5 and the connecting plate 14 are in close contact with each other, and the driving force received from the rolling bar 6 is reliably applied to the abdomen 5a of the tongrel 5 Therefore, when the weight of the railway vehicle is added to the Tongrel 5, the Tongrel 5 can be reliably supported from the side.
Further, if not only the contact portion 14a of the connecting plate but also the leg portion 14b has a shape that follows the upper surface 5b of the base portion, the connecting plate 14 comes into close contact with the tongue 5 over a wider range. The rail 5 can be reliably supported from the side.

  Further, the leg portion 14 b of the connecting plate 14 does not interfere with the widened portion 16 a of the support body 16, so that the leg portion 14 b of the connecting plate 14 does not interfere with the lower surface of the support body 16. A notch 14e (FIG. 3 (a)) that avoids the support 16 is formed so that the legs 14b of the connecting plate 14 can be attached to and detached from the support 16 using the space S. Therefore, by configuring the connecting plate 14 as a block, the contact area of the leg portion 14b of the connecting plate 14 with the groove 14c is as large as possible, and the connecting plate 14 is stably held and the connecting plate 14 with respect to the support 16 is supported. It is possible to improve the detachability workability of the leg portion 14b.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the connection structure of the Tongleil and a rolling rod which concerns on embodiment of this invention, (a) is a side view, (b) is a top view. It is a single figure of the rolling rod shown by FIG. 1, (a) is a front view, (b) is a top view. It is a single figure of the connection metal fitting shown by Drawing 1, (a) is a longitudinal section and (b) is a top view. It is a top view of the conventional branching device of a railroad track. It is AA sectional drawing of FIG.

Explanation of symbols

  5: Tongleil, 5a: Abdominal part, 5b: Base part, 6: Rolling rod, 6a: Upper surface, 7: Connecting bracket, 9: Connecting plate, 10: Fall-off preventing bracket, 12: Connecting structure of rolling rod , 14: connecting plate, 14a: contact portion, 14b: leg portion, 14c: groove, 14d: recessed portion, 16: support, 16a: widened portion, 16b: narrowed portion, 16c: proximal end portion, 16d: protrusion, g: gap, S: space

Claims (6)

A connecting structure in which a tongrail and a rolling rod of a railroad track branching device are connected via a connecting plate,
The connecting plate has a T-shape in plan view, and includes a close contact portion that is in close contact with the abdomen of the Tongrel in a band shape, and a leg portion that protrudes with a height dimension equivalent to the height dimension of the close contact section. Configured as a block with
A support body that engages with the coupling plate is fixed to the upper surface of the rolling rod with a space between the upper surface of the rolling rod, and a leg portion of the coupling plate is attached to a leg portion of the coupling plate. A groove opening upward and laterally is formed to engage the support from the lower side so as to be pivotable in the horizontal direction.
The groove of the leg portion of the connecting plate is engaged with the support body of the rolling bar, and the contact portion of the connecting plate is fixed in close contact with the abdomen of the tongue, so that A connecting structure of the tongrel and the rolling bar, wherein the falling bar is prevented from coming off in the vertical direction and the longitudinal direction. The support has a shape in which a wide-width portion having a circular cross section is formed at the tip of a narrow-width portion having a constant width in plan view, and the groove of the leg portion of the connecting plate includes the wide-width portion and the narrow-width portion, respectively. On the other hand, the connecting structure of the tongrel and the rolling bar according to claim 1, wherein the connecting structure is formed to follow a predetermined interval. The support body is formed by fixing a widened portion made of a columnar member or a cylindrical member with the axial direction up and down at the front end of a narrow portion made of a plate or rod having a constant width in plan view, A gap is provided between the leg of the connecting plate so that the connecting plate can rotate in the horizontal direction with respect to the support body with the widened portion as a center. A connecting structure of the tongrel and the rolling bar according to claim 2. A protrusion extending in the vertical direction is formed on the side surface of the support body, and a recess formed in the groove formed in the leg portion of the connecting plate with a predetermined distance from the protrusion is formed. The connecting structure of the tongrel and the rolling bar according to any one of claims 1 to 3. 5. The tongle rail according to claim 1, wherein the contact portion of the connecting plate has a shape that follows a curved surface that continues from the abdomen of the tongrel to the upper surface of the base. Connecting structure with the rod. When the leg of the connecting plate is attached to or detached from the support using the space between the upper surface of the rolling bar and the lower surface of the support, the leg of the connecting plate is The notch for avoiding interference with a wide part of the said support part and the said support body is formed, The connection structure of the tongrail and the rolling bar of any one of Claim 1 to 5 characterized by the above-mentioned. .

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