JP4285717B2 - Rigid trolley device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power collecting rigid trolley line and its supporting member provided on the side of the train line and a guide on which the side guide wheel of the train rolls in a side current collecting type train line such as a so-called new city traffic. The present invention relates to a rigid trolley device including a rail, and particularly to a rigid trolley device that takes into account electrical insulation so that a conductor such as an empty can is caught between members and a short circuit accident does not occur.
[0002]
[Prior art]
An example of a conventional rigid trolley device is shown in FIGS. This is a side-collection type train line that uses three-phase AC power as drive power, and three rigid trolley wires 1 are wired on the side of the train line at intervals up and down. Guide rails 2 on which the side guide wheels of the train roll are laid. The rigid body trolley wire 1 is a structure on the outside (direction of arrow a in FIG. 12) of the train line, with the sliding surface 1a on which the pantograph slides facing inward (in the direction of arrow a in FIG. 12). 3 is supported via a support insulator 4. The rigid trolley wire 1 is gripped by a pair of upper and lower gripping fittings 4 a and 4 b of the support lever 4. The guide rail 2 is made of an H-shaped steel material having an inner flange 2a, an outer flange 2b, and a web 2c, and is supported by the structure 3 so as to be positioned below and extend along the rigid trolley wire 1. The guide wheel of the train rolls on the inner side surface 2d of the inner flange 2a of the train track of the guide rail 2.
[0003]
[Problems to be solved by the invention]
In the conventional rigid trolley apparatus as described above, falling objects such as empty cans and flying objects are easily caught between the electrically conductive members, particularly in places where people pass above and in strong wind sections, etc. There is a problem.
Therefore, this invention makes it a subject to provide the rigid trolley apparatus which can prevent the short circuit accident by a fallen object, a flying object, etc. by covering an electrically-conductive member with an insulating cover.
[0004]
[Means for Solving the Problems]
In the present invention, in order to solve the problem, the rigid body trolley wire 1 is electrically insulated by the trolley wire cover 11, and the trolley wire gripping fittings 4 a and 4 b of the support insulator 4 are electrically insulated by the insulator cover 12. Further, the upper surface and the outer surface of the guide rail 2 are electrically insulated and covered with the rail cover 13 to constitute a rigid trolley device. The trolley wire cover 11 is made of an elastic synthetic resin and covers a pair of opposed upper and lower covering pieces 11a and 11b covering the upper and lower surfaces of the rigid trolley wire 1 and an outer surface, and the base portions of the upper and lower covering pieces 11a and 11b. An outer covering piece 11c that connects between the ends of the upper and lower covering pieces 11a and 11b in order to expose the sliding surface 1a, and the upper and lower covering pieces 11a and 11b are exposed from the outside of the rigid trolley wire 1. The tip opening portion is elastically opened and pushed inward so that it can be fitted to the rigid trolley wire 1. The lever cover 12 is made of an elastic synthetic resin, has an inner shape corresponding to the outer shape of the holding metal fittings 4 a and 4 b of the support lever 4, and a pair of upper and lower halves 12 a and 12 b that can be fitted to the outer periphery of the holding metal fitting 4. The two half portions are provided with snap engaging portions 12e and 12f that engage with the gripping metal fittings 4a and 4b and are engaged with each other. The rail cover 13 is made of an elastic synthetic resin, and has an upper surface having a shape continuously extending from the upper surface of the inner flange 2a of the guide rail 2 to the outer surface thereof, the upper surface of the web 2c, the inner surface of the outer flange 2b, and the upper surface. A cover 13a and an outer cover 13b having a shape continuously extending along the upper side of the outer side surface of the outer flange 2b of the guide rail 2, the upper surface, the outer side surface, the lower surface, and the lower side of the inner side surface. 13a and the outer cover 13b are configured to be fitted to the outer periphery of the guide rail 2.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
In the illustrated embodiment, the structure and arrangement of the rigid trolley wire 1, the guide rail 2, the structure 3, and the support insulator 4 themselves are not different from the conventional ones described above with reference to FIGS. A detailed description will be omitted.
[0006]
In this embodiment, the difference from the prior art is that the outer peripheral surface of the rigid trolley wire 1 excluding the sliding surface 1a is electrically insulated with a trolley wire cover 11 and grips the rigid trolley wire 1 of the support insulator up and down. The metal fittings 4 a and 4 b are electrically insulated with the insulator cover 12, and the upper surface and the outer surface of the guide rail 2 are electrically insulated with the rail cover 13.
[0007]
As shown in FIGS. 1 and 2, the trolley wire cover 11 is made of an elastic synthetic resin such as weather-resistant vinyl chloride, and has a pair of opposed upper and lower covering pieces 11 a and 11 b covering the upper and lower surfaces of the rigid trolley wire 1, It has an outer covering piece 11c that covers the outer surface opposite to the moving surface and connects the base portions of the upper and lower covering pieces 11a and 11b. The ends of the upper and lower covering pieces 11a and 11b are opened to expose the sliding surface, and the ends of the upper and lower covering pieces 11a and 11b are elastically opened from the outside of the rigid body trolley wire to thereby provide a rigid trolley wire 1. Is configured to be fitted to the rigid trolley wire 1 by being pushed inward.
[0008]
As shown in FIGS. 4 and 5, at the connecting portion in the axial direction of the rigid trolley wire 1, the end portions of the two rigid trolley wires 1 that are abutted are sandwiched from above and below by the seam plate 5 and tightened with bolts and nuts 6. A seam cover 14 having a substantially U-shaped cross-section covering the upper, lower and outer surfaces of the joint plate 5, the outer surface of the rigid body trolley wire 1 and the lower bolt head is fitted to the connecting portion. The seam cover 14 is made of an elastic synthetic resin such as weather-resistant vinyl chloride, and elastically opens between the tips of the upper and lower covering pieces 14a and 14b, receives the connection portion of the rigid trolley wire 1, and pushes it inward to make a rigid body. The connecting portion of the trolley wire 1 can be fitted. The upper covering piece 14a covering the upper surface of the joint plate 5 is formed with a recess 14c for receiving the bolt and nut 6 on the tip edge side thereof. An insulating cap 15 is put on the bolt and nut 6 protruding upward from the recess 14c.
[0009]
As shown in FIGS. 6 to 10, the insulator cover 12 is made of an elastic synthetic resin such as flame retardant polyethylene and has an inner shape corresponding to the outer shape of the gripping fitting 4 a or 4 b, respectively. It consists of a pair of upper and lower halves 12a and 12b that can be fitted to the outside. Both halves 12a and 12b are respectively provided with semi-cylindrical portions 12c and 12d corresponding to the columnar portions of the gripping metal fittings 4a and 4b, and are fitted to the gripping metal fittings 4a and 4b at both edges of the half cylindrical parts 12c and 12b. Snap engagement portions 12e and 12f to be engaged are provided. The engaging portion 12f is provided with an engaging claw at the tip edge of the tongue piece and a guide band 12g. The engaging portion 12e includes an insertion portion that inserts the engaging portion 12f to prevent the engagement portion 12e from coming off. When the fastening band 12g is fitted to the holding metal fittings 4a and 4b, the two fastening parts 12a and 12b are pulled by inserting the fastening band 12g into the engaging part 12e and tightening, thereby engaging the engaging parts 12e and 12f. Can be easily performed, and is removed after the mounting is completed.
[0010]
As shown in FIG. 11, the rail cover 13 is made of an elastic synthetic resin such as weather resistant vinyl chloride, and includes an upper surface cover 13a and an outer surface cover 13b. The upper surface cover 13a has a shape that continuously follows the upper surface of the inner flange 2a of the guide rail 2-the same outer surface-the upper surface of the web 2c-the inner surface of the outer flange 2b-the same upper surface-the upper edge of the outer surface. The upper surface cover 13a is preferably bonded and fixed on the upper surface of the flange 2a of the guide rail 2 with a double-sided adhesive tape or the like. The outer surface cover 13b has a shape continuously extending from one end side to the upper edge of the inner surface of the outer flange 2b of the guide rail 2, the same upper surface, the outer surface, the lower surface, and the lower edge of the inner surface. The end edge has a finger-hanging piece 13c that is curved and extends downward. The bent portion 13d is for applying a spring force to the outer surface cover 13b to obtain an engaging force with the guide rail 2.
As a means for insulatingly covering the outer periphery of the guide rail 2, a method of applying an insulating paint can be employed instead of mounting the rail cover 13.
[0011]
【The invention's effect】
As described above, in the present invention, the rigid trolley wire 1 is electrically insulated by the trolley wire cover 11, and the trolley wire gripping fittings 4 a and 4 b of the support insulator 4 are electrically insulated by the insulator cover 12, Further, since the rigid body trolley device is configured by electrically insulating and covering the upper surface and the outer surface of the guide rail 2 with the rail cover 13, a rigid trolley device that can prevent a short circuit accident due to a falling object, a flying object, etc. is provided. be able to. The trolley wire cover 11, the insulator cover 12, and the rail cover 13 all have an effect that they are simple in structure and easy to mount and can be obtained at low cost.
[Brief description of the drawings]
FIG. 1 is a side view of a rigid trolley device.
FIG. 2 is a cross-sectional view of a trolley wire cover.
FIG. 3 is a plan view of a trolley wire cover. FIG. 4 is a plan view of a trolley wire joint cover.
FIG. 5 is a side view of a trolley wire joint cover;
FIG. 6 is a cross-sectional view of the insulator cover in a mounted state.
FIG. 7 is a front view of a state in which an insulator cover is attached.
FIG. 8 is a perspective view of an insulator cover.
9A is a side view of the upper half of the lever cover, and FIG. 9B is a front view of the upper half of the lever cover.
10A is a side view of the lower half of the lever cover, and FIG. 10B is a front view of the lower half of the lever cover.
FIG. 11 is a side view of the rail cover.
FIG. 12 is a side view of a conventional rigid trolley device.
FIG. 13 is a front view of a conventional rigid trolley device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rigid trolley wire 2 Guide rail 2a Inner flange 2b Outer flange 2c Web 2d Inner side surface (travel surface)
3 Structure 4 Support insulator 4a Grasp metal fitting 4b Grasp metal fitting 11 Trolley wire cover 11a Upper covering piece 11b Lower covering piece 11c Outer covering piece 12 Insulator cover 12a Upper half portion 12b Lower half portion 12e Engaging portion 12f Engaging portion 13 Rail cover 13a Top cover 13b Outer cover 13c Finger hook part 13d Bending part

Claims (6)

With the sliding surface of the pantograph facing inward, which is the center side of the train track, a rigid trolley wire supported by a structure on the outside of the train track via a support insulator, and a position below this rigid trolley wire A rigid trolley device comprising a guide rail made of an H-shaped steel member supported by a structure so that a guide wheel of a train can roll on a side surface of a flange extending along an inner side of a train track.
The outer peripheral surface excluding the sliding surface of the rigid trolley wire is electrically insulated with a trolley wire cover,
The outer periphery of the holding metal fitting for holding the rigid trolley wire of the support insulator up and down is electrically insulated with an insulator cover,
The trolley wire cover is made of an elastic synthetic resin, covers a pair of opposed upper and lower covering pieces covering the upper and lower surfaces of the rigid trolley wire, and an outer surface opposite to the sliding surface, and a base portion of the upper and lower covering pieces. An outer covering piece that connects between the ends of the pair of upper and lower covering pieces, and is open to expose the sliding surface, and from the outside of the rigid trolley wire, It is configured so that it can be fitted to a rigid trolley wire by elastically opening between the tips and pushing inward,
The insulator cover is made of an elastic synthetic resin, has an inner shape corresponding to the outer shape of the gripping metal fitting, and includes a pair of upper and lower halves that can be fitted to the outer periphery of the gripping metal fitting. A rigid trolley device comprising a snap engaging portion that engages with each other in a state of being fitted and butted against each other. With the sliding surface of the pantograph facing inward, which is the center side of the train track, a rigid trolley wire supported by a structure on the outside of the train track via a support insulator, and a position below this rigid trolley wire A rigid trolley device comprising a guide rail made of an H-shaped steel member supported by a structure so that a guide wheel of a train can roll on a side surface of a flange extending along an inner side of a train track.
The outer peripheral surface excluding the sliding surface of the rigid trolley wire is electrically insulated with a trolley wire cover,
The outer periphery of the holding metal fitting for holding the rigid trolley wire of the support insulator up and down is electrically insulated with an insulator cover,
An upper surface and an outer surface of the guide rail are electrically insulated and covered with a rail cover, the trolley wire cover is made of an elastic synthetic resin, and a pair of opposed upper and lower covering pieces covering the upper and lower surfaces of the rigid trolley wire, An outer covering piece that covers an outer surface opposite to the sliding face and connects between the base portions of the upper and lower covering pieces, and between the tips of the pair of upper and lower covering pieces to expose the sliding face It is configured to be fitted to the rigid trolley wire by elastically opening between the tips of the upper and lower covering pieces from the outside of the rigid trolley wire and pushing inwardly,
The insulator cover is made of an elastic synthetic resin and has an inner shape corresponding to the outer shape of the gripping bracket, and is composed of a pair of upper and lower halves that can be fitted to the outer periphery of the gripping bracket. In a state where they are fitted and butted against each other, it has a snap engagement portion that engages,
The rail cover is made of an elastic synthetic resin, and has an upper surface cover having a shape that continuously extends from the upper surface of the inner flange of the guide rail to the outer surface, the upper surface of the web, the inner surface of the outer flange, and the upper surface. An outer surface cover having a shape continuously extending along the upper surface of the outer surface of the outer flange, the upper surface, the outer surface, the lower surface, and the lower portion of the inner surface, and the upper surface cover and the outer surface cover can be fitted to the outer periphery of the guide rail. A rigid trolley device characterized by being configured as described above. The rigid trolley wire is connected in the axial direction by a connection fitting at a required location,
The rigid body trolley device according to claim 1 or 2, wherein the connection fitting is electrically insulated by a connection cover made of an elastic synthetic resin. One snap engagement portion of the lever cover includes an insertion portion that allows the other snap engagement portion to pass therethrough and prevents the other snap engagement portion from being inserted, and the other snap engagement portion protrudes from the insertion portion on the end surface of the insertion portion. The rigid trolley device according to claim 1, further comprising an engaging claw for engaging. A finger hanger piece is provided on the lower edge of the outer cover of the rail cover, and it can be attached to the guide rail so that the user can put his / her hand from below the guide rail and put the finger on the finger hanger and pull it forward. The rigid-body trolley apparatus of Claim 2 characterized by the above-mentioned. The outer cover of the rail cover is provided with an elastic bent portion refracted in a mountain shape, and the elastic bent portion is extended and attached when attached to the guide rail, and the restoring force is used as a coupling force to the guide rail. The rigid trolley device according to claim 2, wherein:

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