JP4846480B2 - Rigid train line termination structure - Google Patents

Description

  The present invention relates to an end structure of a rigid train line that is supported by a structure near a ceiling of a tunnel or its doorway in order to supply power to an electric railway vehicle in a narrow tunnel or a subway tunnel.

Conventionally, for example, the structure described in Patent Document 1 is known as a terminal structure of a rigid train line. This rigid train line is formed by connecting an end approach having an inclined sliding surface made of steel or synthetic resin to a terminal of a rigid trolley having a substantially I-shaped cross section.
Japanese Utility Model Publication No. 54-170505

In the above-mentioned conventional rigid train line, when the train enters, the pantograph collides with the inclined sliding surface in the end approach of the rigid train line, but the impact is sufficiently absorbed only by the inclined sliding surface. Cannot be done, adversely affecting both the end approach and the pantograph.
Therefore, an object of the present invention is to provide a terminal structure of a rigid train wire that can effectively buffer an impact caused by a pantograph collision and is relatively easy to install.

In order to solve the above-described problem, in the present invention, a T-type frame 2 supported so as to extend along a rail on a ceiling structure of a tunnel or outside the tunnel, and a lower edge of the T-type frame 2. An ear 3 fixed by bolts and nuts 5 and 6 along the side surface, and a trolley wire 4 sandwiched between the T-type frame 2 and the ear 3 and arranged along the lower end of the T-type frame 2 The terminal portion of the rigid train line 1 is configured. The T-type gantry 2 has an upper horizontal flange 7 and its vertical width is gradually lowered so that the lower end rises in an arc shape from a predetermined position near the end of the T-type gantry 2 toward the end. Is configured by a web 8 that is reduced, and a sandwiching portion 9 that extends along the lower end of the web 8. The clamping portion 9 includes an inner ridge 10 that protrudes from the one side of the web 8 toward the ear 3 and extends in the longitudinal direction, and an outer ridge 11 that protrudes from the other side of the web 8 to the opposite side of the ear 3 and extends in the longitudinal direction. A plurality of bolt insertion holes 12 that are positioned directly above the inner ridges 10 and the outer ridges 11 so as to penetrate the web 8 at intervals in the longitudinal direction, and the outer ridges 11 and the inner ridges. 10 and a holding claw 13 extending in the longitudinal direction so as to be fitted into one groove 14 of the trolley wire 4. The web 8 of the T-shaped frame is provided with an opening 8b having a predetermined longitudinal width along the upper portions of the inner and outer protrusions 10 and 11 and including a predetermined position near the terminal end.
The ears 3b between a predetermined position near the terminal end of the T-type frame 2 and the terminal end are in a strip shape, and a plurality of ears 3b are provided at intervals corresponding to the bolt insertion holes 12, respectively. The ridge 16, the bolt insertion hole 17, and the clamping claw 18 are provided. The upper ridge 15 is configured to protrude toward one side of the web 8 so that the tip abuts against one side of the web 8 and to extend in parallel with the inner ridge 10 of the web 8. The lower ridge 16 is configured to be positioned below the upper ridge 15 at an interval, project toward one side of the web 8, and extend in parallel with the upper ridge 15. The bolt insertion hole 17 is located between the upper protrusion 15 and the lower protrusion 16 and is configured to penetrate the ear 3b. The clamping claw 18 is configured to be positioned below the lower protrusion 16 so as to extend to fit into the other groove 19 of the trolley wire 4.
The outer ridge 11 of the T-shaped frame 2 is formed with an upper plane 20 that abuts against the head plane of the bolt 5 inserted through the bolt insertion hole 12 and prevents the bolt from rotating. When the lower surface of the lower ridge 16 of the ear 3b is placed on the inner ridge 10, the bolt insertion hole 17 of the ear 3b is opposed to the bolt insertion hole 12 of the T-shaped frame, and a clamping claw 18 of the ear 3b is provided. An upper flat surface 21 is formed so as to face the sandwiching claws 13 of the T-shaped frame.
The trolley wire 4 is bent upward and fixed along the clamping portion 9 from a predetermined position near the end of the T-shaped frame 2 to the end.

In the present invention, since the opening 8b is provided at a predetermined position near the end of the T-frame 2 on the rigid train line 1, when the pantograph of the approaching train comes into contact with the vicinity of the opening 8b, the opening is sandwiched with the trolley line 4. The portion 9 is elastically bent to absorb the impact.
When the lower surface of the lower ridge 16 of the ear 3 is placed on the upper flat surface 21 of the inner ridge 10 of the T-shaped frame 2, the bolt insertion hole 17 of the ear 3 faces the bolt insertion hole 12 of the T-shaped frame. At the same time, since the clamping claws 18 of the ear 3 are positioned so as to face the clamping claws 13 of the T-type gantry, the positioning during the installation work is easy, and the work can be progressed reliably and promptly. Since the lower protrusion 16 of the ear 3 is placed on the upper flat surface 21 of the inner protrusion 10, bending of the ear 3 and the trolley wire 4 between the tightening portions (about 500 mm) by the bolts and nuts 5 and 6 is surely prevented. . When the bolt 5 is inserted into the bolt insertion holes 12, 18, the head plane of the bolt 5 abuts against the upper plane 20 of the outer ridge 11 of the T-type frame 2, so that the nut 6 is tightened. Work is easy. Bolts and nuts 5 and 6 may be general-purpose products. The outer ridge 11 imparts rigidity to the web 8, prevents deflection, and withstands a large clamping force with respect to the trolley wire 4.

  Embodiments of the present invention will be described with reference to the drawings. 1 is a front view of the rigid train line of the present invention, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is a sectional view taken along the line III-III in FIG. It is a perspective view of a part.

  The rigid train line 1 is fixed to the side surface of the T-type frame 2 by a T-type frame 2 supported so as to extend along the rails on a ceiling structure or outside of the road, and by bolts and nuts 5 and 6. Ear 3 and a trolley wire 4 sandwiched between the ear 3 and the T-shaped frame 2.

  The T-type gantry 2 is made of aluminum or aluminum alloy, and has a flange 7 on the upper portion and supported by the ceiling of the tunnel, and a web 8 that hangs down from the center of the flange 7. The web 8 has a reduction portion 8a whose vertical width gradually decreases so that the lower end rises in a circular arc shape from a predetermined position near the end of the T-shaped frame 2 toward the end.

  The ear 3 is made of aluminum or an aluminum alloy, and is fixed to the lower side surface of the web 8 of the T-shaped frame by bolts and nuts 5 and 6. A plurality of the ears 3 are attached to the lower part of the web 8 at the end of the T-shaped frame at a distance from each other, and the ears 3a having a long strip shape extending along the T-shaped frame in the extending direction of the web 8 by a predetermined length. A strip-shaped ear 3b, which is fixed to the side surface of the web 8 with bolts and nuts 5 and 6, respectively.

  The trolley wire 4 is sandwiched between the lower edge portion of the ear 3 and the sandwiching portion 9 formed at the lower edge portion of the web 8 of the T-shaped frame, and is arranged along the lower end of the web 8.

The clamping portion 9 of the web 8 includes an inner ridge 10, an outer ridge 11, a bolt insertion hole 12, and a clamping claw 13. The inner ridge 10 protrudes from one side surface of the web 8 toward the ear 3 and extends in the longitudinal direction. The outer ridge 11 protrudes from the other side of the web 8 to the side opposite to the ear 3 and extends in the longitudinal direction. The bolt insertion hole 12 is positioned directly above the protrusions 10 and 11 and penetrates the web 8. The clamping claw 13 is formed in the lower part of both the protrusions 10 and 11, and extends in the longitudinal direction so as to be fitted into one groove 14 of the trolley wire 4.
The web 8 includes an opening 8b. The opening 8b is provided in the vicinity of a predetermined position along the upper portions of the inner and outer protrusions 10, 11 and the lower end thereof starts to rise in an arc shape, and has a predetermined longitudinal width.

  The ears 3a and 3b have the same cross-sectional shape, and include an upper ridge 15, a lower ridge 16, a bolt insertion hole 17, and a clamping claw 18, respectively.

  The upper ridge 15 is located at the upper end, protrudes toward one side of the web such that the tip abuts against one side of the web 8, and extends in the longitudinal direction. The lower ridge 16 is positioned below the upper ridge 15 at an interval, protrudes toward one side of the web 8, and extends in the longitudinal direction. A plurality of bolt insertion holes 17 are arranged at intervals in the longitudinal direction in the ear 3a, and one each in the ear 3b. The bolt insertion holes 17 are positioned between the upper protrusion 15 and the lower protrusion 16 so as to penetrate the ear 3. Provided. The clamping claw 18 is positioned below the lower protrusion 16 and extends in the longitudinal direction so as to fit into the other groove 19 of the trolley wire 4.

  The outer ridge 11 of the T-shaped frame 2 has an upper plane 20 that abuts against the head plane of the bolt 5 inserted through the bolt insertion hole 12 and prevents the bolt 5 from rotating. The outer ridge 11 imparts rigidity to the web 8 to prevent deflection and withstands a large clamping force with respect to the trolley wire 4. The inner ridge 10 of the T-shaped mount 2 has an upper flat surface 21. The upper flat surface 21 makes the bolt insertion hole 17 of the ear 3 face the bolt insertion hole 12 of the T-type frame when the lower surface of the lower protrusion 16 of the ear 3 is placed and received, and the clamping claw 18 of the ear 3 is Positioning is performed so as to oppose the clamping claws 13 of the mold mount 2. The protruding length of the lower ridge 16 is slightly shorter than the protruding length of the upper ridge 15, with the trolley wire 4 sandwiched between the T-frame 2 and the ear 3 and tightened with bolts and nuts 5 and 6. The tip of the upper ridge 15 abuts on one side of the web 8, but the tip of the lower ridge 16 does not abut on one side of the web 8.

Since the opening 8b is provided at a predetermined position near the end of the T-shaped frame 2 on the rigid train line 1, when the pantograph of the approaching train comes into contact with the trolley line 4 near the opening 8b, the holding part together with the trolley line 4 9 is elastically bent to absorb the impact.
When the lower surface of the lower ridge 16 of the ear 3 is placed on the upper flat surface 21 of the inner ridge 10 of the T-shaped frame 2, the bolt insertion hole 17 of the ear 3 faces the bolt insertion hole 12 of the T-shaped frame. At the same time, since the clamping claws 18 of the ear 3 are positioned so as to face the clamping claws 13 of the T-type gantry, the positioning during the installation work is easy, and the work can be progressed reliably and promptly. Since the lower protrusion 16 of the ear 3 is placed on the upper flat surface 21 of the inner protrusion 10, bending of the ear 3 and the trolley wire 4 between the tightening portions (about 500 mm) by the bolts and nuts 5 and 6 is surely prevented. . When the bolt 5 is inserted into the bolt insertion holes 12, 18, the head plane of the bolt 5 abuts against the upper plane 20 of the outer ridge 11 of the T-type frame 2, so that the nut 6 is tightened. Work is easy. Bolts and nuts 5 and 6 may be general-purpose products.

While the trolley wire 4 is sandwiched between the T-shaped frame 2 and the ear 3, and the bolts and nuts 5 and 6 are tightened, the tip of the upper ridge 15 abuts against one side surface of the web 8, but the lower ridge 16 Since the tip of this does not contact one side surface of the web 8, the trolley wire 4 can be securely clamped with a predetermined elasticity.

  The present invention is used as a rigid train line supported on a ceiling of a railway, for example, to supply power to an electric railway vehicle in a subway or the like.

It is a front view of the rigid train line of the present invention. It is the II-II sectional view taken on the line in FIG. It is the III-III sectional view taken on the line in FIG. It is a perspective view of a part of the rigid train line of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rigid train line 2 T type frame 3 Ear 3a Long ear 3b Strip-shaped ear 4 Trolley wire 5 Bolt 6 Nut 7 Flange 8 Web 8a Reduction part 8b Opening 9 Clamping part 10 Inner protrusion 11 Outer protrusion 12 Bolt insertion Hole 13 Claw claw 14 Thread groove 15 Upper ridge 16 Lower ridge 17 Bolt insertion hole 18 Claw claw 19 ridge groove 20 Upper plane 21 Upper plane

Claims (1)

A T-type pedestal supported to extend along a rail on a ceiling structure or outside the lane, a ear fixed to the lower edge of the T-type pedestal by bolts and nuts, and a T-type A trolley wire sandwiched between the gantry and the ear and arranged along the lower end of the T-shaped gantry, and a terminal structure of a rigid electric train line,
The T-shaped frame has an upper horizontal flange extending along the rail, and gradually descends from a predetermined position near the end of the T-shaped frame toward the end of the T-shaped frame. A web whose vertical width is reduced, and a sandwiching portion extending along the lower end of the web,
Holding portions of the T-type frame includes an inner ridge extending extending direction of the web from one side of the web extending along the rail to protrude into the ear side, projects from the other side of the web to the opposite side to the ear an outer ridge extending extending direction of the web, a plurality are bolt insertion holes so as to penetrate the web at a mutual spacing in the extending direction of the web located directly above these inner ridges and the outer ridge, the outer A pinch claw and a clamping claw extending below the inner rib and extending in the web extending direction so as to fit into one groove of the trolley wire,
The web of the T-shaped frame includes an opening having a predetermined extension direction width including a predetermined position near the terminal end along the upper part of the inner and outer protrusions.
A plurality of the ears are provided at predetermined intervals near the end of the T-shaped frame from the end to the end in correspondence with the bolt insertion holes, with an upper ridge, a lower ridge, A bolt insertion hole and a clamping claw, and the upper ridge protrudes toward one side of the web so that the tip abuts on one side of the web, and extends in parallel with the inner ridge of the web. Is located below the upper ridge and protrudes shorter than the upper ridge toward one side of the web and extends parallel to the upper ridge, and the bolt insertion hole is between the upper ridge and the lower ridge. Located through the ear, the clamping claws are positioned below the lower protrusion and extend to fit into the other groove of the trolley wire,
The outer ridge of the T-type pedestal has an upper plane that abuts against the head plane of the bolt inserted into the bolt insertion hole of the T-type pedestal and prevents the bolt from rotating,
The inner ridge of the T-shaped frame causes the bolt insertion hole of the ear to face the bolt insertion hole of the T-shaped frame when the lower surface of the lower ridge of the ear is placed and received, and An upper flat surface facing the clamping claws of the T-shaped frame;
The trolley wire is bent and fixed along the clamping portion from a predetermined position near the end of the T-shaped gantry to the end.

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