JPS6324210Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a connection structure for bolt tightening fittings in a tightening band for utility poles.

[Conventional technology and its problems]

As shown in FIG. 1, a pair of elastically adjustable tightening bands 3 for utility poles are connected to a bracket 2 that supports an insulator arm 1, and the tightening bands 3 are placed along the outer circumference of the utility pole. Conventionally, it has been common practice to attach the insulator arm 1 to a portion of the outer periphery of a utility pole by drawing both ends of the insulator arm 1 to each other by tightening bolts and nuts.

By the way, the conventional tightening band 3 for utility poles is as follows:
Multiple bolt insertion holes 5 in the length direction of the band body 4
A bolt set hole 7 is formed in the bolt tightening fitting 6 superposed on the band body 4, and a bolt 8 is inserted into the communicating hole between the bolt set hole 7 and the bolt insertion hole 5, and a bolt is inserted into the end of the bolt set hole 7. Since the structure allows the tightening band 3 to be adjusted by expanding and contracting by tightening the screwed nuts 9, it is necessary to remove the bolt and nut when adjusting the tightening band.
The disadvantage is that it takes time to adjust the expansion and contraction.

Therefore, the object of this invention is to solve the above-mentioned drawbacks and to provide a connection structure for bolt tightening fittings in a tightening band for utility poles, which allows easy adjustment of expansion and contraction.

[Means for solving problems]

In order to achieve the above object, this invention consists of a band-shaped band body, a bolt fastening fitting superimposed on this band body, and a plate-shaped connecting fitting that connects the bolt tightening fitting to the band body. a plurality of engagement holes are formed in the length direction of the band main body,
In addition, a guide hole is provided for communicating adjacent engagement holes, and a set hole corresponding to the engagement hole is formed in the bolt tightening fitting, and the connecting tool is connected to a communication hole portion between the set hole and the engagement hole. At both ends of the band plate part inserted through the band plate part, there is a pair of engagement parts whose upper and lower lengths are larger than the width dimension of the band plate part, and whose upper and lower ends engage with the back surface of the band body and the surface of the bolt tightening fitting. The connecting piece is provided to be inclined with respect to the band plate portion, and the thickness of the connector is smaller than the width dimension of the guide hole, and the engagement hole and the set hole are formed such that the surface of the band plate portion is in the hole. The configuration is such that the orientation of the band plate portion can be changed from a state in which it faces the guide hole to a state in which its side edges face it.

[Effect]

With the above configuration, the band body and the bolt tightening fitting are moved relatively in the length direction to align the engagement hole and the set hole, and one of the pair of engagement pieces is moved. By rotating the connector in a state where the engaging piece portion is along the surface of the bolt tightening fitting, the surface or side edge of the strip plate portion can be opposed to the guide hole.

Therefore, by changing the orientation of the band plate part so that the side edge faces the guide hole, and in that state moving the band body and the bolt tightening fitting relatively in the length direction, the tightening band can be lengthened. You can make adjustments.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in FIGS. 2 to 4, the arc-shaped band main body 10 has a band shape, and a plurality of engagement holes 11 are formed at equal intervals in the length direction, and adjacent engagement holes 11 have narrow widths. The guide holes 12 communicate with each other.

Here, although the engagement hole 11 is square in the illustrated case, it can take any shape.

The bolt tightening fitting 20 connected to the band main body 10 is provided with a fastening piece 22 by bending the end of an arc-shaped plate part 21 that can be attached to the outer periphery of the band main body 10. A bolt insertion hole 23 is formed in. In addition, the engagement hole 11 is provided in the arc-shaped plate portion 21.
A set hole 24 having the same shape as the set hole 2 is provided, and the set hole 2
An insertion hole 26 having the same width as the guide hole 12 is formed on one side of the guide hole 4 .

Note that it is preferable that the bolt tightening fitting 20 be reinforced by forming flanges 25 on the upper and lower edges.

A plate-shaped connector 30 that connects the band body 10 and the bolt tightening fitting 20 is provided at both ends of the band plate portion 31.
A pair of engagement piece parts 32 whose vertical lengths are larger than the width dimension of the strip plate part 31 are provided facing in opposite directions, and each engagement piece part 32 is inclined with respect to the strip plate part 31. The band plate portion 31 is inserted through a communication hole between the engagement hole 11 and the set hole 24, and one of the pair of engagement piece portions 32 engages with the back surface of the band body 10, The other engaging piece 32 engages with the surface of the bolt tightening fitting 20.

The thickness dimension of the connecting tool 30 is the same as that of the guide hole 1.
It is thinner than the width dimension of 2. In addition, the band plate part 3
1 is an engagement hole 11 and a set hole 2 aligned therewith.
4 has a width dimension that allows the direction to be changed from a state where the surface faces the guide hole 12 to a state where the side edge faces the guide hole 12.

Further, the length between the upper and lower sides of the engagement piece portion 32 is shorter than the length from one side of the set hole 24 to the closed end of the insertion hole 26.

For this reason, the engagement hole 11 and the set hole 24 are aligned, the guide hole 12 and the insertion hole 26 are aligned, and the bolt tightening fitting 20 is connected with the engagement piece 32 along the surface thereof. By rotating the tool 30 and making the side edge of the band plate part 31 face the guide hole 12, one of the engagement pieces 32 of the coupling tool 30 is pulled out from the communication hole between the engagement hole 11 and the set hole 24. I can do it.

The tightening band shown in the embodiment has the above structure, and as shown in FIG. By moving the fastening fitting 20 relatively to the bolt tightening fitting 20 in the longitudinal direction and aligning the engagement hole 11 and the set hole 24 as shown in FIG. Connector 30 remains in contact with the surface of
can be rotated.

Therefore, by rotating the connector 30, the band plate portion 3
By changing the direction of the band body 1 and making the side edge of the band plate part 31 face the guide hole 12, the band body 1
0 and the bolt tightening fitting 20 can be relatively moved in the length direction, and the length of the tightening band can be adjusted by the movement.

After adjusting the expansion and contraction of the tightening band, the set hole 24 is aligned with the adjacent engagement hole 11 by relative movement of the band body 10 and the bolt tightening fitting 20, and in this state, the engagement piece The connecting tool 30 is rotated with the part 32 along the surface of the bolt tightening fitting 20 so that the surface of the band plate part 31 faces the guide hole 12, and then the band body 10 and the bolt tightening fitting 20 are mutually connected. When pulled in the opposite direction, as shown in FIG. Because the upper and lower ends of the band engage with the back surface of the band body 10 and the surface of the bolt tightening fitting 20,
The tightening band can be held in a position where the elasticity is adjusted.

〔effect〕

As described above, this invention aligns the engagement hole and the set hole, rotates the coupling with one engagement piece of the coupling along the surface of the bolt tightening fitting, and straps the bolt. By arranging the side edge of the plate part to face the guide hole, the band body and the bolt tightening fitting can be moved relative to each other in the length direction, so the bolt-nut can be disassembled to adjust the expansion and contraction. Adjustment work is extremely easy compared to conventional tightening bands. Also, with the engagement hole and the set hole aligned, rotate the connector in the opposite direction to the above, so that the surface of the band plate part faces the guide hole, and in this state, connect the band body and bolt tightening fitting. When pulled relatively, the inner peripheries of the engagement hole and the set hole engage opposite surfaces of the band plate part, and the upper and lower ends of the pair of engagement pieces engage the back surface of the band body and the bolt tightening metal fitting. The tightening band can be reliably held in the elastically adjusted position.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view showing a conventional tightening band, Fig. 2 is a partially cutaway front view showing an embodiment of the tightening band according to this invention, and Fig. 3 is a cross-sectional plan view of the same. , FIG. 4 is an exploded perspective view of the same as above, and FIG. 5 is a partially cutaway front view of the connector shown in FIG. 2 in a state where it has been rotated by 90 degrees. 10...Band body, 11...Engagement hole, 12...
...Guide hole, 20...Bolt tightening fitting, 24...
Set hole, 30... Connector, 31... Band plate portion, 3
2...Engagement piece part.

Claims (1)

[Scope of utility model registration request] It consists of a belt-shaped band main body, a bolt fastening fitting superimposed on this band main body, and a plate-shaped connecting fitting that connects the bolt fastening fitting to the band main body, and a plurality of A guide hole is provided which forms an engagement hole and communicates between adjacent engagement holes, and a set hole corresponding to the engagement hole is formed in the bolt tightening fitting, and the connecting tool is connected to the set hole. At both ends of the band plate inserted into the communication hole of the engagement hole, the upper and lower lengths are larger than the width of the band plate, and the upper and lower ends are attached to the back of the band body and the surface of the bolt tightening fitting. A pair of engaging pieces that engage,
The coupling device is provided at an angle with respect to the band plate portion, and the thickness of the coupling device is made smaller than the width dimension of the guide hole, and the engagement hole and the set hole are such that the surface of the band plate portion is in contact with the guide hole within the hole. A connection structure for bolt tightening fittings in a tightening band for a utility pole, the size of which allows the direction of the band plate parts to be changed from a state in which they face each other to a state in which their side edges face each other.