JP4846479B2 - Rigid train line - Google Patents

Description

  The present invention relates to a rigid train line supported on a ceiling of a railway to supply electric power to an electric railway vehicle in a subway or the like.

Conventionally, as a rigid train line, for example, one described in Patent Document 1 is known. In this rigid train line, an ear protrusion is fitted to a step portion of a T-shaped frame, and is tightened with a bolt and a special nut to sandwich a trolley line.
JP-A-8-156657

In the conventional rigid train line, it is not easy to position the three members at appropriate positions when fixing the trolley wire and the ear to the T-shaped frame. Moreover, since a special cylindrical nut is used for the tightening of the three parties, there is a problem that lacks versatility.
Therefore, the present invention facilitates the positioning of the three parties when fixing the trolley wire and the ear to the T-shaped frame, can perform the installation work quickly and reliably, and is a general-purpose bolt for tightening the three parties. -It is intended to provide a rigid train wire that can be easily tightened using a nut.

  In order to solve the above-described problem, in the present invention, the pinching portion 9 of the web 8 in the T-type gantry 2 is provided with an inner ridge 10, an outer ridge 11, a bolt insertion hole 12, and a clamping claw 13. . The inner ridge 10 is provided so as to protrude from one side surface of the web 8 to the ear 3 side and extend in the longitudinal direction. The outer ridge 11 is provided so as to protrude from the other side of the web 8 to the side opposite to the ear 3 and extend in the longitudinal direction. The bolt insertion hole 12 is provided directly above the inner ridge 10 and the outer ridge 11 so as to penetrate the web 8. The ear 3 is provided with an upper protrusion 15, a lower protrusion 16, a bolt insertion hole 17, and a clamping claw 18. The upper protrusion 15 is located at the upper end, and is provided so as to protrude toward one side of the web 8 and extend in the longitudinal direction so that the tip abuts against one side of the web 8. The lower ridges 16 are arranged below the upper ridges 15 at intervals, projecting toward one side of the web 8 and extending in the longitudinal direction. The bolt insertion hole 17 is provided between the upper protrusion 15 and the lower protrusion 16 so as to penetrate the ear 3. The nail | claw 18 is arrange | positioned under the lower protrusion 16, is provided so that it may fit in the other groove | channel 19 of the trolley wire 4, and may extend in a longitudinal direction. Further, the outer ridge 11 of the T-type gantry 2 is provided with an upper plane 20 that abuts against the head plane of the bolt inserted through the bolt insertion hole 12 and prevents it from rotating. When the lower surface of the lower ridge 16 of the ear 3 is placed on the inner ridge 10 of the T-type frame 2, the bolt insertion hole 17 of the ear 3 is opposed to the bolt insertion hole 12 of the T-type gantry, and the ear The upper flat surface 21 is provided so that the three clamping claws 18 are opposed to the clamping claws 13 of the T-shaped frame.

  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 to prevent bending, 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. FIG. 1 is a sectional view of a rigid train line of the present invention, FIG. 2 is a side view of the rigid train line of the present invention, and FIG. 3 is a perspective view of a part of the rigid train line of the present invention.

  The rigid train line 1 includes a T-type frame 2 supported so as to extend along the rail to the ceiling of the tunnel, an ear 3 fixed to the side surface of the T-type frame 2 by bolts and nuts 5 and 6, And a trolley wire 4 sandwiched between the T-type 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 ear 3 is made of aluminum or aluminum alloy and is a long strip plate extending along a lower side surface of the web 8 of the T-shaped frame in the extending direction of the web 8 by bolts and nuts 5 and 6. It is fixed to the side of the web 8.

  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 ear 3 includes an upper protrusion 15, a lower protrusion 16, a bolt insertion hole 17, and a clamping claw 18.

  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. The bolt insertion hole 17 is located between the upper protrusion 15 and the lower protrusion 16 and penetrates the ear 3. 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.

  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 sectional drawing of the rigid body line of this invention. It is a side view of the rigid train line of the present invention. 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 mount frame 3 Ear 4 Trolley line 5 Bolt 6 Nut 7 Flange 8 Web 9 Clamping part 10 Inner protrusion 11 Outer protrusion 12 Bolt insertion hole 13 Claw claw 14 Groove 15 Upper protrusion 16 Lower protrusion 17 Bolt insertion hole 18 Claw 19 Claw groove 20 Upper plane 21 Upper plane

Claims (2)

A T-shaped frame having a flange supported by the ceiling of the tunnel and a web depending from the center of the flange and extending along the rail; and a web of the T-shaped frame along a lower side surface of the web extending along the rail . A long strip plate-like ear fixed to the side of the web by a predetermined length extending bolt and nut in the extending direction, and a clamp formed at the lower edge of the ear and the lower edge of the web of the T-shaped frame A rigid train line comprising a trolley line that is sandwiched between and disposed along a lower end of the web,
Outer clamping portion of the web extending an inner projection extending into the extending direction of the web and projects from one side of the web to the ear side, projects from the other side of the web to the opposite side of the ear to the extending direction of the web A ridge, a bolt insertion hole that penetrates the web located immediately above the inner ridge and the outer ridge, and a groove formed on the outer ridge and the lower portion of the inner ridge, and fitted into one groove of the trolley wire. A holding claw that extends in the extending direction of the web ,
The ear is positioned at the upper end and protrudes toward one side of the web so that the tip abuts on one side of the web and extends in the extending direction of the web. A lower ridge that protrudes shorter than the upper ridge toward one side of the web and extends in the extending direction of the web, and a bolt insertion hole that passes between the upper ridge and the lower ridge and passes through the ear. A clamping claw that is formed below the lower protrusion and extends in the extending direction of the web so as to fit in 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 A rigid train line having an upper flat surface facing the holding claws of a T-shaped frame. In the state where the protrusion length of the lower protrusion is shorter than the protrusion length of the upper protrusion, the trolley wire is sandwiched between the T-shaped frame and the ear and tightened with a bolt and a nut. The rigid train wire according to claim 1, wherein the end of the strip abuts on one side of the web, but the end of the lower ridge does not abut on one side of the web.

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