JPH0621332U - Trolley wire retention bracket - Google Patents

Abstract

(57) [Summary] [Purpose] It can be installed by simple work even if you are not an expert.
Fine adjustment of the mounting dimensions is easy and damage to the trolley wire is prevented. A fastening member 3 including a fastening bolt 33 having a flat rectangular head portion 32 having a trolley wire insertion hole 31 penetratingly formed orthogonally to the axis and a nut 34 screwed to the fastening bolt 33, A bolt hole 4 in which a head fitting insertion hole 41 through which the fastening bolt 33 is inserted and a shaft insertion hole 42 are continuously formed is formed through, and the head fitting insertion hole 41 fits the fastening bolt 33 into the head. Retention with a depth such that a part of the trolley wire insertion hole 31 formed in the head 32 of the fastening bolt 33 when inserted into the bolt hole 4 from the insertion hole 41 side has a depth such that it is buried in the mounting portion 15. It consists of the metal fitting body 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a trolley wire retracting metal fitting used for retaining an end of a trolley wire in a train track to, for example, a utility pole or a tension adjusting device.

[0002]

[Prior art]

 The wire terminal type metal fittings for the trolley wire in the train tracks and the splicer type metal fittings for the wood section are used.

However, as shown in FIG. 8, the wire terminal type trolley wire retracting metal fitting is configured such that the end of the trolley wire 1a is folded back and the folded back portion 2a holds the wedge 3a and is inserted into the wedge-shaped socket 4a. The trolley wire is retained by the action of the wedge. Therefore, the work is complicated and requires skill, and it is difficult to make fine adjustments to the mounting dimensions after holding it once. Furthermore, since the wedge-shaped socket 4a must be forged, a lot of time and labor is required. There are problems such as having and.

Further, as shown in FIG. 9, the splicer type trolley wire retention fitting has a problem in that the trolley wires 1a and 1a are directly tightened by the setscrews 5a, so that the trolley wires 1a and 1a are partially damaged.

[0005]

[Problems to be solved by the device]

 The problem to be solved by the present invention is that the conventional trolley wire retracting metal fittings are complicated and require skill, so that the work is skillful and it is difficult to finely adjust the mounting dimensions after temporarily holding them. However, it is difficult to manufacture, and some trolley wires may be damaged.

[0006]

[Means for Solving the Problems]

 According to the present invention, there is provided a detention metal fitting body having a connecting hole formed at the base end and a mounting portion for mounting the end portion of the trolley wire provided along the length direction, and a trolley fitting on the detention metal fitting body. And a fastening member for fastening the end portion of the wire, wherein the fastening member is a flat rectangular shape in which a trolley wire insertion hole for inserting the end portion of the trolley wire is formed so as to penetrate perpendicularly to the axis. It is composed of a fastening bolt having a head portion and a nut screwed to the fastening bolt, and a head fitting insertion hole and a shaft insertion hole of the fastening bolt are formed in the mounting portion of the detention fitting body. Bolt holes formed continuously are formed in the head of the fastening bolt when the head fitting insertion hole inserts the fastening bolt into the bolt hole from the head fitting insertion hole side. A part of the formed trolley wire insertion hole has a depth that allows it to be buried in the placing part, facilitating the work. In no skill required of not only the fine adjustment of the mounting dimensions it is simple, also produced that provides contact wire anchor bracket without a part of the easy contact wire damage, achieves the goal.

[0007]

[Action]

 Insert the end of the trolley wire into the bolt hole of the anchor fitting body and insert it into the trolley wire insertion hole on the head of the fastening bolt to place it on the mounting part of the anchor fitting body and then from the bolt hole of the anchor fitting body. When the nut that is screwed on the tip of the protruding fastening bolt is screwed, the part of the trolley wire insertion hole through which the end of the trolley wire of the fastening bolt head is inserted is buried in the mounting part. The end of the trolley wire is pressed and supported at the opening edge of the head insertion hole of the fastening bolt formed on the mounting portion at the opening of the trolley wire insertion hole formed on the head of the fastening bolt. Fasten to the main body of the anchor fitting.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 to FIG. 7 show an embodiment of the present invention, and a detention metal fitting body 1 and a fastening member 3 for fastening an end 21 of a trolley wire 2 to the detention metal fitting body 1. It consists of and.

The detention metal fitting body 1 is formed of, for example, an aluminum alloy (AlBC or the like) or malleable cast iron into a generally elongated U-shaped tube, and is formed at the center of a circular bulging portion 11 provided at the base end. A connecting hole 12 is formed for connecting to a telephone pole or a tension adjusting device,

An insertion hole 14 for the trolley wire 2 is formed in a partition wall 13 provided at the tip of the detention fitting body 1, and the swelling portion 11 is continuous with the insertion hole 14 in the lengthwise direction. The bottom portion of the U-shaped groove formed on the bottom is used as a mounting portion 15 for mounting the end portion 21 of the trolley wire 2.

On the other hand, the fastening member 3 has a fastening bolt having a flat rectangular head portion 32 in which a trolley wire insertion hole 31 for inserting the end portion 21 of the trolley wire 2 is formed so as to penetrate perpendicularly to the axis. 33, and a nut 34 and a washer 35 which are screwed into the screw 33.

Then, the mounting portion 15 of the main body 1 of the retractable metal is provided with two bolt holes 4 and 4 for inserting the fastening bolts 33 of the fastening member 3 at predetermined intervals in the longitudinal direction. It is formed through.

These bolt holes 4 have a shape in which a head fitting hole 41 of a square fastening bolt 33 and a circular shaft inserting hole 42 are continuously formed. When the trolley wire insertion hole 31 formed in the head 32 of the fastening bolt 33 is inserted into the bolt hole 4 from the side of the fitting insertion hole 41, a part of the trolley wire insertion hole 31 is buried in the mounting portion 15. There is.

In order to retain the end portion 21 of the trolley wire 2 using this embodiment, first, as shown in FIG. 6, for example, a connecting tool 5 is attached to a utility pole or a tension adjusting device and the connecting hole 12 of the anchor metal body 1 is connected. The end portion 21 of the trolley wire 2 inserted from the insertion hole 14 at the tip end in a state of being connected to the mounting portion 15 is mounted on the mounting portion 15.

At this time, the trolley wire 2 is inserted into the trolley wire insertion hole 31 formed in the head portion 32 of the fastening bolt 33 inserted into the bolt holes 4 and 4, respectively.

Then, as shown in FIG. 7, when the nuts 34 screwed into the fastening bolts 33, 33 protruding from the bolt holes 4, 4 of the detention fitting body 1 are tightened, A part of the trolley wire insertion hole 31 through which the end portion 21 of the trolley wire 2 formed in the head portion 32 is inserted is in a state of being buried in the mounting portion 15, and the end portion 21 of the trolley wire 2 is attached to the fastening bolt 33. At the hole opening of the trolley wire insertion hole 31 formed in the head portion 32, it is securely supported by being pressed and supported by the opening peripheral edge of the head fitting insertion hole 41 of the fastening bolt 33 formed in the mounting portion 15. .

Particularly, in this embodiment, since the mounting portion 15 is provided with the bolt holes 4 and 4 for mounting the two fastening bolts 33, 33, the end portion 21 of the trolley wire 2 is corrugated. Deformation ensures the tensile strength more than that of the trolley wire 2 itself.

[0020]

[Effect of device]

 According to the present invention having the above configuration, the end of the trolley wire is inserted and placed in the placing portion of the detention metal fitting body, and the nut of the fastening bolt is fastened securely by an extremely simple work. Since it is not necessary to fold the end of the trolley wire like the conventional wire terminal type trolley wire detention tool, it does not require skill and can perform work without skill in a short time. You can

[0021] Further, it is easy to finely adjust the mounting dimensions after once holding, and it is easy to manufacture and suitable for mass production.

Further, since the end of the trolley wire is not folded back and the end of the trolley wire is not directly tightened with a bolt or the like, the trolley wire is not damaged.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

3 is a cross-sectional view taken along the line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is a cross-sectional view taken along the line VV of FIG.

FIG. 6 is an explanatory diagram showing a usage state of the embodiment shown in FIG.

FIG. 7 is an explanatory diagram showing a usage state of the embodiment shown in FIG.

FIG. 8 is a perspective view showing a conventional example.

FIG. 9 is a perspective view showing another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Detachment metal fitting body 2 Trolley wire 3 Fastening member 4 Bolt hole 12 Connection hole 15 Placement part 21 End 31 Trolley wire insertion hole 32 Head 33 Fixing bolt 34 Nut 41 Head fitting hole 42 Shaft part insertion hole

Claims (1)

[Scope of utility model registration request] 1. A detention metal fitting main body having a connecting hole formed at a base end thereof, and a mounting portion for mounting an end portion of a trolley wire provided in a longitudinal direction thereof, and the detention metal fitting body. And a fastening member for fastening the end of the trolley wire, wherein the fastening member has a flat rectangular shape in which a trolley wire insertion hole for inserting the end of the trolley wire is formed so as to penetrate perpendicularly to the axis. It is composed of a fastening bolt having a head and a nut screwed to the fastening bolt, and a head fitting hole and a shaft inserting hole of the fastening bolt are continuously formed in the mounting portion of the detention metal fitting body. Trolley formed in the head of the fastening bolt when the head fitting insertion hole inserts the fastening bolt into the bolt hole from the head fitting insertion hole side. Trolley wire retention, characterized in that a part of the wire insertion hole has a depth to be buried in the mounting portion Metal fittings.