JPH1084620A - Fittings for pole for railway high voltage line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make narrower the width of a projection from a pole for a railway high voltage line, by constituting the main body portion with a longitudinal member parallel to a pole and a plurality of lateral members connected to the longitudinal members, and the fixed portion is constituted with connecting-receiving members for fitting and connecting to the lateral members of the main body portion. SOLUTION: The main body portion 1 is formed with a longitudinal member 3 standing in parallel to a post P in a fixed state to the pole P, and two upper and lower lateral members 4a and 4b assembled to project out laterally slightly slanted, the longitudinal member 3 has a plurality of bolt-inserting holes 5, 5,... made at predetermined intervals on the side surface parallel to the projecting direction of the lateral members, and holes for inserting bolts are made for connecting an insulator 6 to a side face orthogonally. Also, a lateral member 4b at the lower side is integrally connected to the lower end of the longitudinal member 3 by using an elbow material 8, and the lateral member 4a at the upper side is so formed as to clamp the longitudinal member 3 and is fixed with a bolt through a clamping portion 9 located at one end. Then, the fixed portions 2, 2 have a construction comprising a connecting-receiving body 11, a pair of tightening bands 12a, 12b and a tightening bolt 13. As a result, the width of the projection of the railway high voltage line from the pole can be made narrower.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column fitting used for an overhead line of a high-voltage railway line.

[0002]

2. Description of the Related Art A railway high-voltage line is used to supply power for business use in a station building or power for operating a traffic signal.
It is wired using a column that supports a trolley line that supplies power to the train. There are various types of columns for supporting the trolley wire, and for example, a pole type pole P as shown in FIG. 6 is one of the representative types. Such a pillar P is usually provided at a side edge of a track land and is close to a boundary with an adjacent land. Moreover, as can be seen in FIG. 6, a conventional pole fitting T for supporting a railway high-voltage line on a column.
Protrudes long in the lateral direction. For this reason, there is a case where the railway high-voltage line is over the air in the adjacent land. Such a state is not always preferable, and it is desired that an overhead line that can solve the problem be eliminated as much as possible. Such a problem also exists in the case of an elevated railway.
That is, in the elevated railway, since the railway high-voltage line is supported by the pillars provided along the side of the viaduct, the railway high-voltage line protrudes from the viaduct, so that the overhead line that can also be eliminated as much as possible can be done. It is desired to do.

[0003] In addition to the above-mentioned problem of the large width of the projection in the lateral direction, the conventional mounting fixture has a problem that the workability in fixing to a support post is required in a severe overhead line working environment in a high voltage railway line. There is also a problem that there is difficulty. In other words, the work of overhead line work on the railway high-voltage line is greatly limited due to the relationship with the running train, and there is always a track on one side of the column and a private house on the other side in many cases. The working environment is severe because it is necessary to take great care not to drop members or the like downward during work on the pillar. However, the conventional mounting bracket is composed of a main body with an insulator directly supporting the high-voltage wire, a pair of tightening bands used to fix the main body to the support, and bolts for tightening the band. . Therefore, in order to fix the mounting bracket to the support, for example, first, the both tightening bands are temporarily fastened to the support by connecting bolts at one end of each other, and then to the other end of the both tightening bands. It is necessary to work while handling each member individually on the pillar by the procedure of bolting the main body part and then firmly fixing the both tightening bands to the column. For this reason, work in a severe working environment as described above, such as increasing the number of members handled in work on the pole, taking a lot of time for work on the pole, and increasing the possibility of accidentally dropping members There was difficulty in sex.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to reduce the width of a high-voltage railway line protruding from a support, and to reduce the number of parts handled during work on the support. Accordingly, it is an object of the present invention to provide a mounting fixture that allows a work on a pillar to proceed more efficiently and safely.

[0005]

SUMMARY OF THE INVENTION A pillar fitting according to the present invention comprises, as main components, a main body to which a plurality of insulators are attached, and a fixing portion for fixing to a support. The main body has a vertical member to which a plurality of insulators are attached, and these insulators are arranged in the vertical direction. Consists of Further, the fixing portion is formed so that the cross member of the main body portion can be fitted and connected, and a connection receiving body provided with a pair of hinge supporting portions, and a hinge corresponding to the hinge supporting portion of the connection receiving body at one end. A pair of tightening bands that are provided with a connecting portion and a bolt tightening portion at the other end, and that are hinged to the connection receiving body via the hinge supporting portion at the hinge connecting portion, and the pair of tightening bands, Tightening bolts that are wound around the support posts and fastened by bolting at the bolted portions.

[0006] In order to fix the mounting fixture to the column, first, the fixing portion is fixed to the column. For this purpose, first, the two tightening bands integrated by hinge connection with the connection receiving body are made to follow the support column as a single band using the hinge connection structure, and then the two tightening bands in this state are used. Bolt the band with the tightening bolt and fix it firmly to the column. Then, the main body is connected to the fixing portion fixed to the column, and the fixing is completed. For this purpose, the cross member of the main body is fitted to the connection receiving body of the fixed portion, and then the fitted portion is tightened with bolts or the like.

As described above, the pole fitting according to the present invention greatly simplifies the operation of fastening the support with the two tightening bands, which is the most troublesome for fixing to the support, and can reduce the number of members to be handled at that time. . In addition, the connection of the main body to the fixed part can be performed in a state where the main body is sufficiently stabilized by fitting the cross member of the main body to the connection receiving body of the fixed part, and this work is also simplified. And safety can be improved. Further, in the mounting bracket according to the present invention, since the vertical members to which the insulators are attached are parallel to the columns, the width of the overhead high-voltage line projecting from the columns can be reduced.

[0008] In the above-mentioned mounting bracket, if the tightening bolt is previously combined with one of the tightening bands so as not to come off from it, it is particularly possible to prevent the member from dropping during the work on the pole. This is preferable in that respect. To achieve this, the tightening bolt is provided with a structure in which a flat head is formed at one end and a retaining portion for preventing the nut from coming off is provided at the other end, while the structure of one of the tightening bands is provided. A bolt insertion hole is provided in which a flat head of a tightening bolt is inserted through the bolt tightening portion and turned to lock the head. Then, tighten the tightening bolt by screwing it into the nut in advance so that it does not come off at the retaining portion to prevent it from coming off. When the two tightening bands are bolted together with the tightening bolts, the flat head of the tightening bolt is locked to the bolt tightening portion of one of the tightening bands via the bolt insertion hole.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to one embodiment of the present invention, a mounting bracket includes a main body 1 and two fixing portions 2 and 2, as shown in FIGS.

The main body 1 is formed by a vertical member 3 standing parallel to the column P while being fixed to the column P, and two upper and lower horizontal members 4a and 4b combined with the column 3 so as to project diagonally and horizontally. I do. The vertical member 3 is formed using a square pipe or the like, and a plurality of bolt insertion holes 5 are formed on a side surface parallel to the projecting direction of the horizontal member.
Are provided at predetermined intervals, and a bolt insertion hole (not shown in the figure) for connecting the insulator 6 to the vertical member 3 with the insulator connecting member 7 by bolting is provided on the orthogonal side surface.
The plurality of bolt insertion holes 5, 5,... Are used to connect a horizontal member 4b, which will be described later, to the vertical member 3, and by selectively using these, the connection height of the horizontal member 4b to the vertical member 3 is increased. You can change the position. By making the connection height position of the horizontal member 4b relative to the vertical member 3 variable as described above, the fixing portion 2 corresponding to the horizontal member 4b can be fixed to the column P in relation to various fittings already attached to the column P. It is possible to easily cope with the case where the position to be fixed to is limited.

Both the horizontal members 4a and 4b are formed using a square pipe having the same thickness as the vertical member 3. The lower horizontal member 4b is integrally connected to the lower end of the vertical member 3 by using an elbow member 8, and the upper horizontal member 4a is formed at one end of the vertical member 3 so as to hold the vertical member 3 therebetween. It is connected by a bolt via the holding portion 9.

The fixing portions 2 have the same structure.
Specifically, as can be seen in FIG.
And a pair of tightening bands 12a and 12b and a tightening bolt 13. The connection receiver 11 is a cross member 4
a and one end of the cross member 4b can be fitted with an appropriate length of, for example, about several cm with slightly loose tightness, and can be firmly adhered to the cross member by bolting as described later. It is formed into a C-shaped steel structure as shown in the example of the drawing. The connection receiver 11 has hinge support portions 14 and 1 having the same structure on left and right side surfaces thereof.
4 is provided. The hinge support 14 is connected to the connection receiver 11.
Upper and lower support plates 15, 1
5 and a hinge pin 16 through which the two support plates 15 are inserted. Further connection receiver 1
1 is provided with a contact plate 17 having a front end provided with a surface shape corresponding to the outer peripheral surface of the column P.

Each of the two tightening bands 12a and 12b is made of a flat steel plate or the like and has a shape corresponding to the half-shape of the outer periphery of the column.
In this example, hinge connection portions 18, 18 formed by bending this portion into a cylindrical shape are provided at one end, and formed by bending the portion into a cylindrical shape, and these hinge connection portions 18, 18 are provided. The hinge is connected to the hinge support portion 14 of the connection receiver 11 through the connection. In addition, both band tightening bands 12a,
Bolt fastening portions 19a and 19b are provided at the other end of 12b. These bolted portions 19a and 19b have the other end bent orthogonally to the circular curve, and the reinforcing rib 2
1 is formed. And one of the tightening bands 12
The bolt fastening portion 19a of FIG.
a, and the bolted portion 1 of the other winding band 12b is provided.
9b is provided with a bolt insertion hole (not shown in the figure) having a size slightly larger than the outer diameter of the tightening bolt 13.

The tightening bolt 13 has a head 23 and a square part 24 at one end and a retaining part 25 at the other end, as shown in an enlarged view in FIG. Its head 23
Is formed flat so as to enable a kind of bayonet-connected rotation stop in the elongated bolt insertion hole 22a of the bolt fastening portion 19a of the winding band 12a. Further, the retaining portion 25 is flattened in the same direction as the head 23 and is formed so as to slightly protrude from the outer diameter of the screw thread of the tightening bolt 13 so that the nut 26 used for tightening the tightening bolt 13 comes off. To be able to prevent. For this purpose, the tightening bolt 13 is passed through a bolt insertion hole (not shown in the drawing) of the tightening band 12b, and after the nut 26 is screwed, a retaining portion 25 is formed or the retaining portion 25 is formed. To prevent the nut 26 from coming off. In other words, the fastening bolt 13 is incorporated in the bolt fastening portion 19b of the winding band 12b in advance so that the nut 26, which has been prevented from coming off by the retaining portion 25, functions to prevent detachment.

In order to fix such a column fitting to the column P, first, the fixing portion 2 is fixed to the column P. For this purpose, first, the both tightening bands 12a and 12b are opened as shown by the arrow X and are aligned with the support P, and then tightened with the tightening bolts 13 to be firmly fixed to the support P. In order to tighten with the tightening bolt 13, first, as described above, the tightening bolt 1 previously installed in the bolt tightening portion 19 b of the winding band 12 b is used.
3 of the flat head 23 is passed through the elongated bolt insertion hole 22a of the bolt fastening portion 19a of the tightening band 12a and is prevented from rotating.
After passing through the bolt insertion hole 22a, the head 23 is locked by making the direction of the head 23 orthogonal to the direction of the bolt insertion hole 22a,
Then the nut 26 is tightened. Next, the main body 1 is connected to the fixing portion 2 fixed to the support. It has a main unit 1
Is fitted to the connection receiving body 11 of the fixing portion 2 and then this fitting portion is bolted.

These series of operations are performed as work on a pillar, and the members handled in the work on the pillar are substantially the fixing part 2 and the main body 1, and the bolts used for bolting the fixing part 2 and the main body 1. It only needs to. Therefore, the work on the pillar can be efficiently advanced, and the possibility of accidentally dropping the member can be reduced.

[0017]

As described above, the mounting bracket according to the present invention requires a small number of parts to be used in the work on the pole, enables the work to be carried out on the pole more efficiently and safely, and enables the railway high pressure. It can also contribute to reducing the width of the line protruding from the support.

[Brief description of the drawings]

FIG. 1 is a side view additionally showing a use state of a mounting bracket according to an embodiment.

FIG. 2 is a plan view seen from the direction of arrow DA in FIG. 1;

FIG. 3 is a side view seen from the direction of arrow DA in FIG. 2;

FIG. 4 is a perspective view of a fixing unit.

FIG. 5 is a perspective view of a fastening bolt.

FIG. 6 is an explanatory diagram of a typical example of a column supporting a railway high-voltage line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 2 Fixed part 3 Vertical member 4a, 4b Horizontal member 6 Insulator 11 Connection receiving body 12a, 12b Winding band 13 Tightening bolt 14 Hinge support part 18 Hinge connection part 19a, 19b Bolt tightening part 22a Bolt insertion hole 23 Head 25 Retaining part P prop

Claims (2)

[Claims] 1. A mounting bracket having a main body to which a plurality of insulators are attached and a fixing part for fixing to a support, and used for supporting a railway high-voltage line on the support, wherein the main body comprises: A plurality of insulators are attached, and a vertical member which is parallel to the column so that these insulators are arranged in a vertical direction, and a plurality of horizontal members which are combined with the vertical members in a horizontal direction, Is provided with a connection receiving body formed so as to be able to fit and connect the cross member of the main body and provided with a pair of hinge supporting parts, and a hinge connecting part corresponding to the hinge supporting part of the connecting receiving body at one end. At the other end, a bolt tightening portion is provided, and a pair of tightening bands hinged to the connection receiving body via the hinge supporting portion at the hinge connecting portion, and the pair of tightening bands are connected to the bolt tightening portion. Bolting with A mounting bracket, comprising: a fastening bolt that is wound around a support post and fixed. 2. The fastening bolt has a flat head on one end side, and has a retaining portion on the other end side to prevent the nut from coming off.
2. The mounting column according to claim 1, wherein the bolt fastening portion has a bolt insertion hole that allows the flat head portion of the fastening bolt to be inserted and turned to lock the head portion. Metal fittings.