JP2014171358A - Crossarm device for pole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crossarm device for a pole, which can be rigidly fixed to the pole, by which the pole is held from four directions to obtain a stable fastened state and durability, and which is excellent in installation efficiency since it is sufficient to fasten members each other by a bolt without using a conventional band piece and compatibility of the band piece to the pole is therefore not required.SOLUTION: A device base frame 9 is formed of mounting pieces 10 and fastening receiving pieces 11 which are mutually orthogonal and continuous, and a pair of the mounting pieces 10 of the device base frame, and the base part of a crossarm, which is interposed between the mounting pieces 10, 10 and the base end face of which is formed as a recessed portion 7 having an arcuate cross section and is engaged with the peripheral side face of the pole D, are connected by at least a pair of upper and lower mounting bolts 4 and mounting nuts 8 threadedly engaged therewith. Also, each fastening receiving piece 11 of the device base frame 9 and the end part of a holding rod 14 facing the fastening receiving piece 11 through the pole D are fastened by a fastening bolt 15 and a fastening nut 15 threadedly engaged therewith.

Description

  In the present invention, when mounting a device, as a support material for the device, a power pole (not necessarily referred to as a power pole, for example, a column for installing a streetlight is also included). The present invention relates to an armature device for an electric pole provided so as to protrude like a cantilever.

  A pair of first and second band pieces, one end of which is connected with a connection bolt and a connection nut, are wound around a utility pole, and the other end of each first band piece is fastened together with a tightening bolt and a tightening nut. There is a structure in which the holding frame is connected to the other end of the two band pieces with a connecting bolt, and the base portions of the arm metal interposed between the holding frame and the holding frame are attached to each other with the attaching bolt (Patent Document 1). .

JP 2002-218636 A

  In the conventional example, the work is complicated because the band piece made of steel is fitted to the power pole so that the work is complicated, and in order to keep the arm metal at a certain height position, A configuration using contact resistance is adopted, and the contact resistance is obtained by tightening with a tightening bolt and a tightening nut, which is easily affected by loosening of the tightening nut due to forgetting to tighten the bolt or vibration.

  The present invention focuses on such problems of the prior art, and was devised to provide an armrest device for a utility pole that can hold the armrest at a certain height without using a so-called band piece. is there.

  A device base frame is composed of an assembly part piece and a fastening receiving part piece that are continuous in an orthogonal direction, and is interposed between the assembly part piece of the pair of the device base frame and the assembly part piece, and has a cross section. The base part of the arm metal, in which the base end surface, which is an arc-shaped recessed part, is engaged with the peripheral side surface of the utility pole, is connected with an assembly bolt and an assembly nut screwed to the assembly bolt, and each device base frame is tightened. The basic means is that the part and the end of the clamping rod facing the tightening receiving part via the electric pole are tightened with a tightening bolt and a tightening nut screwed to the tightening bolt.

  In this basic means, the brace consists of a square tube-shaped main body rod and a cross-section groove-shaped base frame welded to the side surface of the base end portion of the main body rod, and the base frame is It is composed of a central piece constituting the base end surface of the arm metal and the side piece provided opposite to both ends of the central piece, and the side piece is provided with a point provided with a through hole through which an assembly bolt is passed. Thus, the arm can be firmly provided in a cantilever shape with respect to the electric pole, and the clamping rod is provided with a central piece provided with a through-hole through which the tightening bolt penetrates at the end in the longitudinal direction and the central piece. It is composed of a pair of upper and lower parts that are relatively provided at the upper and lower ends of the part piece, and by adding a point provided with a notch for engaging the electric pole to the central part in the longitudinal direction on the free end side of the upper and lower part piece, The power pole is reliably held by the device base frame and the holding rod, and therefore, a brace apparatus that reliably maintains a fixed position on the power pole can be provided. Further, if the clamping rod is fastened to the tightening receiving part piece with the tightening bolt and the tightening nut, an even stronger arm metal device can be obtained, and the assembly part piece and the tightening receiving part piece constituting the device base frame can be obtained. In between, an armature device that is not easily deformed can be obtained by adding a structure in which an appropriate number of plate-like pieces are passed up and down on each opposing surface side.

  According to the present invention, the assembly base piece of the apparatus base frame and the fastening receiving piece provided in the orthogonal direction are assembled to each other with the mounting bolt, and the clamping receiving piece is clamped to the clamping bolt. In this case, the power pole is sandwiched between the power poles, so that the power pole can be firmly installed, and since the power pole is sandwiched from all sides, the tightening state is stable, and thus a durable arm metal device is obtained. Can do. In addition, it is not necessary to prepare a band piece according to the column diameter as before, and it is sufficient to tighten the members with bolts without using the band piece. An excellent armature device for a power pole can be provided.

Plan view. Side view. The top view of a bracelet. Side view of a bracelet. The top view which shows that it can respond to the diameter of a utility pole.

  The drawings show an embodiment of an armature device for a utility pole according to the present invention. In the embodiment, the armature 1 composed of a main body 2 and a base frame 3 and a pair of device base frames 9 are assembled with bolts 4. And the assembly nut 8 are assembled to each other on the ground, and the assembly body and the clamping rods 14 and 14 are opposed to each other via the electric pole D on the column, and the tightening bolt 13 is passed through the opposed units. The tightening nut 15 screwed onto the tip of the bolt 13 protruding from the clamping rod 14 (the central piece 14a thereof) is tightened, but the order of assembling the members does not have to follow this.

  Further, in the embodiment, the picocell antenna a is attached to the middle part of the arm 1 protruding in a cantilever shape on the utility pole D by the attachment device m, that is, the picocell antenna a is attached to the utility pole (post) D. Although the brace apparatus for supporting is shown, what is necessary is just a thing for mounting an apparatus, and the mounting apparatus does not need to be limited to the picocell antenna a.

  The arm metal 1 is composed of a main body 2 having a rectangular tube shape and a base frame 3 having a groove shape in cross section provided with side pieces 3b, 3b facing each other on both sides of a central piece 3a which is long in the vertical direction. The free end side tip of the side piece 3b is overlapped from the outside and welded to the opposite side surfaces of the base 2 and the main body 2 and the base frame 3 are integrally formed.

  The side piece 3b of the base frame 3 of the arm metal 1 is provided with upper and lower through holes 5 and 6 through which the assembly bolts 4 are inserted, and the central piece 3a constituting the base end surface of the arm metal 1 is provided. The outer side surface of the main pole 2 is bent into an arc shape and is formed into a concave portion 7 having an arc shape in cross section with which the peripheral side of the utility pole D is engaged. Through holes 5A and 6A through which bolts mb for attaching the members are inserted are arranged in front of the main body 2.

  It is to be noted that the gap v is provided between the base end of the main body 2 and the central piece 3a of the base frame 3, that is, the side piece 3b of the base frame 3 is provided with a portion that does not overlap the main body 2 When the through holes 5 and 6 are provided in the portion and the portions that do not overlap each other are tightened with the assembly bolt 4 and the assembly nut 8, the assembly nut 8 (or the assembly bolt 4) is made to act as a spring. This is to prevent loosening of the sheet and obtain a stable assembled state. The assembly bolt 4 (the corresponding through hole 6) may be single.

  The brace 1 is assembled with the apparatus base frames 9 and 9 by the base frame 3 part on the base side being interposed between a pair of apparatus base frames 9 and 9 and tightened with the assembly bolt 4 and the assembly nut 8. It is attached.

  The device base frame 9 includes a vertically rectangular assembly piece 10 and a vertical rectangular tightening receiving piece 11 which is the same shape as the assembly piece 10 in a direction orthogonal to each other. Between the tightening receiving piece 11, three plate-like reinforcing pieces 12, 12, 12 are provided so as to be arranged side by side on each opposing surface side, and the plate-like shape of each piece 10, 11 is provided. In the part between the reinforcing part pieces 12 and 12, through holes 5B and 6B through which the assembling bolt 4 is inserted in the assembling part 10 and up and down in the tightening receiving part 11 The upper and lower through-holes 5C and 6C through which 13 is inserted are provided.

  As described above, the base portion (base frame 3) of the arm 1 is assembled to the device base frames 9, 9 by interposing the assembly bolts 4 with the assembly nuts 8 between the pair of device base frames 9, 9. However, the base frame 3 is arranged between the assembly pieces 10, 10 of the device base frame 9, and the through holes 5 B, 6 B on the device base frame 9 side and the through holes 5 on the base frame 3 side that coincide with each other. , 6, the assembly bolt 4 is inserted, and an assembly nut 8 is screwed and fastened to each end of the assembly bolt 4 protruding from the assembly part 10 of one device base frame 9. The pair of device base frames 9 and 9 are assembled to each other, and this assembling work is desirably performed on the ground from the viewpoint of workability and safety.

  Then, the device base frame in which the tightening bolt 13 is inserted into the upper and lower through holes 5C and 6C provided in the tightening receiving portion piece 11 of the device base frame 9 and the tightening bolt 13 is assembled with the arm metal 1. 9 and the distal end of the tightening bolt 13 is projected forward from the column D engaged with the recessed portion 7 provided on the base end surface of the arm metal 1 as viewed from the device base frame 9 to the arm metal 1. Then, a pair of tightening bolts 13, 13 positioned at the upper side are inserted into the clamping rod 14, and another pair of clamping bolts 13, 13 positioned at the lower side are inserted into the other clamping rod 14, and each clamping projecting from the clamping rod 14 The tightening nut 15 is screwed onto the bolt 13 and tightened to form the device of the embodiment.

  The tightening bolt 13 is positioned in a direction perpendicular to the assembly bolt 4 from the directional relationship (direction orthogonal to each other) of the assembly part piece 10 and the tightening receiving part piece 11 of the device base frame 9, and as a result, the tightening bolt 13 is tightened. The clamping rod 14 pressed in the direction of the utility pole D by the nut 15 tries to move along the two tightening bolts 13 and 13 that are in a parallel positional relationship, and the tightening by the tightening nut 15 is performed firmly (the embodiment is As shown in FIG. 5, this action is used to cope with utility poles having different diameters).

  The clamping rod 14 has a horizontally long belt-like central piece 14a provided with through holes 5D and 6D through which the tightening bolts 13 are inserted at both side symmetrical positions, and upper and lower ends along the longitudinal direction of the central piece 14a. The upper and lower parts 14b and 14c are in the same shape with each other, with the electric pole D engaged at the center in the longitudinal direction. A rectangular pole (notch) 16 is provided, and the other side of the utility pole D, one side of which engages with the recess 7, is opposed to the other side of the notch 16 (not necessarily “square”). And the whole device can be stably attached to the utility pole D.

  In the embodiment, a pair of upper and lower clamping rods 14 are used. However, this means that each clamping rod 14 is in pressure contact with the utility pole D by fastening the fastening nut 15 independently of the others. This is because it can be expected that each clamping bar 14 retains the clamping force by absorbing it even if the peripheral side surface is inclined (usually slightly tapered). There is no inconvenience even with a device having a single clamping rod 14.

  Further, in the embodiment, one side of the utility pole D has a recess 7 having a circular arc cross section (the curved surface is pressed against the utility pole D), and the other side opposite to the one side is a rectangular notch 16 (both ends on the opening end side are utility poles). In this case, the utility pole D is clamped at three points, and it is intended that a firm attachment state of the arm metal can be obtained.

DESCRIPTION OF SYMBOLS 1 Arm 4 Assembly bolt 7 Recessed part 8 Assembly nut 9 Device base frame 10 Assembly part piece 11 Tightening receiving part piece 14 Clamping rod 15 Tightening nut

Claims (5)

  A device base frame is composed of an assembly part piece and a fastening receiving part piece that are continuous in an orthogonal direction, and is interposed between the assembly part piece of the pair of the device base frame and the assembly part piece, and has a cross section. The base end of the base metal, which has a base end surface that is an arc-shaped recessed portion engaged with the peripheral surface of the utility pole, is connected by an assembly bolt and an assembly nut that is screwed to the assembly bolt. An armature device for an electric pole, wherein a receiving piece and an end of a clamping rod facing the tightening receiving piece through the electric pole are tightened with a fastening bolt and a fastening nut screwed into the fastening bolt.   The armor is composed of a rectangular tube-shaped main body rod and a base frame having a cross-sectional groove shape in which a side piece is welded to the side surface of the base end portion of the main body rod. The armature device for electric poles according to claim 1, comprising a piece piece and the side piece piece provided opposite to both ends of the central piece piece, and the side piece piece is provided with a through hole through which an assembly bolt passes.   The clamping rod is composed of a central piece provided with a through-hole through which the tightening bolt penetrates at the end in the longitudinal direction and a pair of upper and lower pieces provided opposite to the upper and lower ends of the central piece, and the free ends of the upper and lower pieces. The armature device for electric poles in any one of Claims 1 thru | or 2 which provided the notch which engages an electric pole in the center part of the longitudinal direction of the side.   The armature device for electric poles in any one of Claims 1 thru | or 3 which clamped the clamping rod to the tightening receiving part piece with the tightening bolt and the tightening nut.   5. The device according to claim 1, wherein an appropriate number of plate-like pieces are passed up and down between each of the opposing surface sides between the assembly piece and the fastening receiving piece constituting the device base frame. Armor device for electric poles.

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