JPH04321846A - Stay fixture - Google Patents

Abstract

PURPOSE:To make the whole of a stay fixture in a compact size and to reduce the size thereof by forming a maim body by fitting plates fixed at a designated space parallel to each other, rotatably installing an adjusting bolt directly on the main body, and accommodating the front screw portion between the fitting plates. CONSTITUTION:In the case of an aerial communication line cable 31 in addition to high and low pressure lines 1, 2, a stay fixture 30 is adapted to install three stays 5, 6, 32. In installing the lower ends of the respective stays 5, 6, 32 on an anchor 8 using the stay fixture 30, the anchor 8 is fitted to the lower end portion of a main body 33 through a mounting shaft 29, and the respective stays 5, 6, 32 are latched on a stay latch portion 50 of a stay anchor body 34. At the time of adjusting the tension of each stay 5, 6, 32, an adjusting bolt 35 is rotated using an operating portion 51. Thus, the upper and lower screw shafts 52, 53 are simultaneously screwed in screw holes of a fitting pin 41 and the stay anchor body 34 to symmetrically draw the main body 33 and the stay anchor body 34.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch line attachment device, and more particularly to a branch line attachment device used for attaching a branch line to an anchor for supporting a utility pole in an overhead power line such as a high or low voltage line.

0002

2. Description of the Related Art As shown in FIG. 8, in an overhead power line for high-voltage lines (1) and low-voltage lines (2), utility poles (4) planted on the ground (3) are connected to high- and low-voltage lines (1). ) (2) for each branch line (
5) Supported by (6), the utility pole (4) is connected to high and low voltage lines (1) and (2).
) to prevent it from collapsing due to the load. Above branch line (5
) (6) An anchor (8) is attached to the lower end of the branch line (6) via a branch line attachment (7) for adjusting the tension of the branch line.The anchor (8) is embedded in the ground (3) and the branch line ( 5)
(6) is fixed to the ground (3).

FIGS. 9 to 11 show the above branch lines (5) and (6).
1 shows a conventional branch line attachment (7) for attaching an anchor (8) to the lower end of a. As shown in the drawing, the main body (9) is composed of bilaterally symmetrical mounting plates (10) (10) that are bent into a predetermined shape, and the mounting plates (10) (10) are attached to anchors ( 8) are arranged facing each other so that the interval between the mounting plates can be adjusted within a predetermined tolerance range according to the size of the mounting plates (8), and a plurality of turnbuckles (11) ( 11) are connected. An anchor (8) is attached to the lower end of the attachment plate (10) (10) via an attachment shaft (13) having a threaded portion (12) at its tip. The mounting shaft (13) is attached to the mounting plate (
10) It is removably penetrated and held in the center of the lower end of (10), and a tightening nut (14) is screwed and tightened into the threaded portion (12).

[0004] The turnbuckles (11) (11) are as follows:
Approximately U-shaped connecting fittings (15), branch wire retaining body (16),
It is composed of an adjustment bolt (11) that connects the connecting fitting (15) and the branch line stop (16), and adjustment nuts (18) (18) screwed onto the adjustment bolt (11).

The lower end of the connecting fitting (15) includes a pivot bolt (20) having a threaded portion (19) at its tip and a nut (
21) are rotatably arranged and pivotally attached to the upper end edges of the mounting plates (10) and (10). The branch wire anchoring body (16) is made by integrally welding a branch line hanging member (23) to the upper end of the U-shaped fitting (22), and is connected to the lower end top wall (24) of the U-shaped fitting (22). The upper end top wall portion (25) of the metal fitting (15) is held opposite to the upper end wall portion (25) at a predetermined interval, and the branch lines (5) and (6) are hooked to the branch line hooking member (23).

The adjustment bolt (17) is connected to the operating section (26).
), a lower screw shaft (27) and an upper screw shaft (28), which are reverse screws, are concentrically protruded in opposite directions on both end faces of the screw shaft (27) and (28). The upper end top wall (25) of the metal fitting (15) and the lower end top wall (24) of the branch wire retaining member (16) are penetrated so as to be movable in the axial direction, and are held within the respective metal fittings (15) (22). ing. Adjustment nuts (18) (18) are screwed into symmetrical parts of the screw shafts (27) (28) of the adjustment bolt (17). The adjustment nuts (18) (18) have a rectangular shape, and when the adjustment bolt (17) rotates in the axial direction, the peripheral surfaces of the adjustment nuts (18) contact the inner surfaces of the metal fittings (15) and (22) so that they rotate together. is prevented.

When adjusting the tension of the branch lines (5) and (6) attached to the anchor (8) via the branch line fixture (7), rotate the adjustment bolt (17) around the specified axis. This is done by rotating the adjusting nuts (18) (18) symmetrically in the axial direction.

[0008]

[Problem to be solved by the invention] Conventional branch line attachment (7
) is the turnbuckle (11) on the mounting plate (10) (10).
) (11), the whole is large and heavy, making it difficult for operators to handle and carry it. In addition, the number of parts is large, and there are many protruding parts to the outside, resulting in frequent public accidents such as passersby being injured by hitting the protruding parts.

[0009] Also, high and low voltage lines (1) (2) are installed on the overhead power lines.
), for example, when communication line cables are installed overhead,
In order to support the load of this communication line cable, it is necessary to support the utility pole (4) with three branch wires.
It is difficult to attach three branch lines with conventional branch line attachments.
If the turnbuckles are configured to be connected, problems such as an increase in size and weight will occur.

The present invention was proposed in view of the above-mentioned problems, and an object of the present invention is to provide a branch line attachment that is compact and easy to handle and carry by an operator.

[0011]

[Means for Solving the Problems] In order to achieve the above object, the present invention has an anchor mounting shaft that is removably penetrated and fixed to the lower end of side plates that are fixed in parallel at a predetermined interval, and , a main body in which a plurality of mounting pins each having a screw hole are rotatably attached to a plurality of locations on the upper end edge, and the screw holes are located in the space between the side plates; A substantially rectangular frame-shaped branch line retaining body having a branch line hooking part, and an upper screw shaft and a lower screw shaft with reverse screws protruding concentrically from both end surfaces of an operating part formed in the center, and each screw Insert the shaft into the mounting pin of the main body and the screw hole of the branch wire retaining body, respectively.
And, the lower screw shaft is arranged in the space between the side plates of the main body,
It has a branch wire stopper connected to the main body.

0012

[Operation] The main body is composed of mounting plates fixed in parallel at a predetermined interval, the adjustment bolt is rotatably mounted directly to the main body, and the front screw part is housed between the mounting plates. The entire structure can be made more compact.

[0013]

[Example] Fig. 1 shows an example of the branch line attachment device according to the present invention.
The explanation will be as follows with reference to FIGS.

[0014] The branch line attachment (30) of the first embodiment is capable of attaching, in addition to the high and low voltage lines (1 and 2), for example, 3 Book branch line (
5) (6) and (32) can be attached, and as shown in Figures 1 to 4, it consists of a main body (33), a forged branch wire retaining body (34), and an adjustment bolt (35). It consists of

The main body (33) has a plurality of spacer nuts (37) of a predetermined width interposed at a plurality of places between the side plates (36) (36) formed into a predetermined symmetrical shape. (36) Attach the plurality of fixing bolts (38) (38) through the symmetrical parts of (36) to the spacer nuts (
37) from both sides, and tighten the side plates (36) (36).
are fixed in parallel with each other at a predetermined interval.

A mounting hole (40) for removably mounting the anchor mounting shaft (39) shown in FIG. 4 is formed in the center of the tapered lower end of the side plate (36). 36) At the upper end edge of (36), pivot holes (42) (42) for attaching a plurality of attachment pins (41) are formed side by side at predetermined intervals. The mounting pin (41) has pin parts (44) (44) formed on both end faces of a square block body (43), and a screw hole (45) penetrating through the block body (43). Then, the pin parts (44) (44) are attached to the side plates (36) (36
) The block body (43) is rotatably supported by the pivot holes (42) (42) on the rear end edge of the side plates (36) (3).
6) in the space (46).

The branch wire anchorage body (34) has a substantially rectangular frame shape, and has a screw hole (48) penetrating through the wall (47) at one end (lower end), and a screw hole (48) passing through the wall (47) at one end (lower end). A branch line hooking part (50) is formed with a concave groove (49) formed on the circumferential surface.

The adjustment bolt (35) is connected to the operating section (51).
), a lower screw shaft (52) and an upper screw shaft (53), which are reverse screws, are provided concentrically and protruding in opposite directions from both end faces of the screw. Connect the lower screw shaft (52) and upper screw shaft (53) of the adjustment bolt (35) to the mounting pin (41) of the main body (33).
A screw hole (45) and a branch wire hold-down body (34) formed in the
The lower screw shaft (52) is inserted into the space (46) between the side plates (36) of the main body (33) by screwing them into the screw holes (48) in the axial direction, and the upper screw shaft (53) is accommodated and held within the branch wire retaining body (34). Adjustment bolt (
The lower screw shaft (52) of 35) is formed to be longer than the upper screw shaft (53) by a predetermined dimension, and the lower screw shaft (52) of the adjustment bolt (35)
To prevent the lower screw shaft (52) from accidentally coming off from the block body (43) of the mounting pin (41) when adjusting the tension of the branch lines (5), (6), and (32) by rotating.

When the lower ends of the three branch lines (5, 6, and 32) are attached to the anchor (8) using the branch line attachment (30), the lower ends of the main body (33) Attach the anchor (8) via the attachment shaft (39) to the
Attach the branch line (5) to the branch line hooking part (50) of the branch line hold-down body (34).
(6) Hook (32). Branch line (5) (6) (32)
To adjust the tension of the adjustment bolt (35), use the operating part (51) of the adjustment bolt (35) to rotate the adjustment bolt (35) in a predetermined direction. By rotating this adjustment bolt (35), the lower screw shaft (52) and the upper screw shaft (53) are aligned with the mounting pin (
41) and the screw hole (45) (4
8) at the same time, and the main body (33) and the branch line hold-down body (34)
) are pulled symmetrically to adjust the tension of the branch lines (5), (6), and (32).

FIGS. 6 and 7 show a second embodiment of the branch line attachment (60). Components that are the same as those shown in FIGS. 1 to 5 are denoted by the same reference numerals, and description thereof will be omitted.

The branch line attachment (60) of this embodiment is capable of attaching two branch lines (5) and (6), and has a side plate (61) that is formed smaller than the side plate of the main body of the first embodiment. (61
) constitutes a main body (62), and a branch wire retaining body (34) (
34) is attached.

[0022]

[Effects of the Invention] According to the present invention, the front screw shaft of the adjustment bolt is rotatably pivoted to the main body and inserted into the space between the side plates, so the entire branch line mounting bracket is made compact. , the weight is lighter, and in addition to high- and low-voltage lines, it is also possible to attach branch lines to support communication line cables, etc.
A total of three wires can be attached, and it is easy to handle, carry, and pack by an operator. Moreover, since there are fewer parts and fewer protruding parts to the outside, public disasters such as passersby being injured by hitting the protruding parts can be prevented.

[Brief explanation of drawings]

FIG. 1 is a partially sectional side view showing a first embodiment of a branch line attachment according to the present invention.

FIG. 2 is a front view of FIG. 1.

FIG. 3 is an explanatory diagram of the branch wire fastening tool seen from the rear end side.

FIG. 4 is a perspective view showing a first embodiment of the branch line attachment according to the present invention.

FIG. 5 is an explanatory diagram showing how the branch line attachment device of the first embodiment is used.

FIG. 6 is a front view showing a second embodiment of the branch line fitting according to the present invention.

FIG. 7 is a partially sectional side view of FIG. 5;

FIG. 8 is an explanatory diagram showing a general usage state of the branch line attachment.

FIG. 9 is a front view showing a conventional branch line attachment.

FIG. 10 is a partially sectional side view of FIG. 8;

FIG. 11 is a perspective view showing a conventional branch line attachment.

[Explanation of symbols]

33 Main body 34 Branch wire stop 35 Adjustment bolt 36, 36 side plate 39 Anchor mounting shaft 41 Mounting pin 45 Screw hole 48 Screw hole 51 Operation section 52 Lower screw shaft 53 Upper screw shaft

Claims (1)

[Claims] Claim 1: An anchor mounting shaft is removably penetrated and fixed to the front end of side plates that are arranged and fixed in parallel with each other at a predetermined interval, and screw holes are provided through the rear end edge at a plurality of places. a main body to which a plurality of mounting pins are rotatably attached, and the screw holes are located in the spaces between the side plates; a substantially rectangular frame having a screw hole passing through at one end and a branch line hooking portion at the other end; A lower screw shaft and an upper screw shaft, which are reverse screws, are concentrically protruded from both end surfaces of the branch wire retaining body and the operating section formed approximately in the center, and each screw shaft is connected to the mounting pin of the main body and the upper screw shaft. A branch line attachment tool consisting of an adjustment bolt that is screwed into the screw hole of a branch line hold-down body so as to be able to move forward and backward, and the lower screw shaft is arranged in the space between the side plates of the main body to connect the branch line hold-down body to the main body.