JPS5854466Y2 - Band for mounting on steel poles, etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a band used for attaching various types of equipment to iron poles and the like.

For example, when assembling a transmission line steel pole using steel pipes, the present invention is used to attach a crane, etc. to the part of the steel pole that is in the middle of being erected when the steel pole structural members are lifted up and connected upward one by one. The purpose is to provide a band that can be freely adapted to changes in the diameter of the steel pole, can be used in an extremely wide range of applications, and can be installed firmly.

Next, the details of an embodiment of the present invention will be described below based on the accompanying drawings showing one embodiment of the present invention.

In the figure, 1 is the main body of a vertically long band whose inner surface is formed into an arc shape to fit the maximum diameter of the steel pipe 3 on the steel column 2. At the center of the outer surface, there is a support arm 5 whose tip is a cylindrical portion 4. It is a protruding structure.

A jib crane 6 or the like is attached to the cylindrical portion 4 of the support arm 5 with a pin inserted as shown in FIG.

Attachment arms 7 and 8 are pivotally attached to both ends of the band main body 1, respectively.

Both mounting arms 7 and 8 have approximately the same vertical length as the band main body 1 as shown in FIG. Each member can freely rotate in a plane around the center.

The outer ends of both mounting arms 7 and 8 are bent outward from the middle to the steel pipe 3 to form bent pieces 11 and 12, and the inner surfaces from the base end to the middle are bent toward the arcuate inner surface of the band main body 1. It is formed into an arc shape that can be extended.

The bent piece 11 of the mounting arm 7 located on the right side of FIG.
A through hole 14 for the tightening bolt 13 and an arcuate recess 16 for supporting a ball 15 fitted onto the bolt 13 are formed in the outer opening of the through hole 14.

The bolt 13 has a chain 17 connected to its tip, and a tightening nut 18 that presses the bolt 15 at its base end.

Further, the through hole 14 is formed in a tapered shape with a larger diameter on the inner side facing the steel pipe 3, and a flexible support mechanism 19 is constituted by a ball 15 and an arcuate recess 16 on the outer side that supports the ball 15. This mechanism 19 allows the bolt 13 to rotate freely in all directions.

Bent piece 1 on the other mounting arm 8 located on the left side in FIG.
2 is formed with a connecting portion 20 that connects the free end side of the chain 17 connected to the bolt 13 in a hooked manner.

As shown in FIGS. 3 and 4, this connecting portion 20 has a notch 22 horizontally opened from the outer edge of the bent piece 12 to match the wire diameter of the link 21, and the notch 22 is formed on the outer surface of the bent piece 12.
An inclined surface 23 is formed around the slanted surface 23, and an arcuate recess 24 is formed at corresponding positions on both sides of the inclined surface 23, into which the end of the free end link that is orthogonal to the link fitted into the notch 22 fits. 17 and the mounting arm 8 are completely connected.

In the illustrated case, the recesses 24 are formed at two locations in the middle of the notch 22,
The connection position with the chain 17 can be changed depending on the diameter of the steel pipe 3.

In the illustrated case, the tightening bolt 13 is attached to the one mounting arm 7, and the notch 23 is formed in the other mounting arm 8 at three locations on the upper and lower sides, and is tightened using three upper and lower chains. The number may be more than one.

The present invention has the above-mentioned structure, and the band is attached to the steel pipe 3 by aligning the band main body 1 and the mounting arms 7 and 8 on both sides along the outer surface of the steel pipe 3, and using a tightening bolt inserted into the through hole 14. 1
The chain 17 of No. 3 is attached to the outer surface of the steel pipe 3, and while the chain 17 is kept under tension by hand, the free side portion is inserted into the connecting portion 20 of the other mounting arm 8.

In this state, the bolt 13 is tensioned by tightening the nut 18, and as the bolt 13 is tightened, the chain 17 becomes tense.
As shown in FIG. 2, the outer periphery of the steel pipe 3 is tightened to make it completely fixed.

In addition, when the outer diameter of the steel pipe 3 is small, the band is attached by bending the mounting arms 7 and 8 on both sides inward, as shown by the two-dot chain line in FIG. Band main body 1
After the three inner sides of the steel pipe 3 are brought into contact with the steel pipe 3, fixing is performed by tensioning the chain 17 with the bolt 13 in the same manner as described above. Since the bolt 13 is rotated in the direction, no force in the bending direction is applied to the bolt 13, and a reliable tightening force can be obtained.

The band fixed to the steel pipe 3 in this manner is used for attaching a jib crane 6, etc., as shown in FIG.

In the above installation state, when the weight of the jib crane 6 acts as a load on the band main body 1, a moment is generated in the band main body 1 with respect to the steel pipe 3, and the upper chain 17 becomes tense.
By pressing the lower part of the band main body 1 against the steel pipe 3, a self-locking function is generated to prevent the entire band from moving downward.

As described above, the present invention hinges the mounting arms on both sides of the main body of the band, which has support arms protruding from the outside surface, and attaches the tightening bolt to the mounting arm using a ball-type flexible support mechanism, and the chain connected to the bolt. Since the band and the other mounting arm are connected to each other, by bending the mounting arms on both sides relative to the band body, the band can be attached to iron poles of various diameters, and the range of use of the band can be extremely widened.

In addition, since the tightening bolt is installed using a ball-type flexible support mechanism, the chain tightening direction and axis center match according to the installation diameter, and strong tightening ensures a fixation that can withstand the installation of heavy objects. can get.

In addition, the connection between the chain and the mounting arm simplifies the installation process, allowing large-scale adjustments to be made to accommodate changes in the diameter of the steel pole, etc., and self-locking due to the tension of the chain and pressure contact force at the bottom of the belt main body when the load is applied. This has the practical effect of providing reliable fixation without slippage.

[Brief explanation of the drawing]

Fig. 1 is an explanatory view showing how the mounting band according to the present invention is used, Fig. 2 is a cutaway plan view of the main part of the mounting band of the present invention, Fig. 3 is a front view of the main part, and Fig. 4 is the same as above. It is an enlarged sectional view showing a connection part of a chain and a mounting arm in . 1... Band main body, 5... Support arm, 7
, 8... Mounting arm, 10... Hinge structure,
13... Tightening bolt, 14... Through hole, 15... Ball, 16... Arc-shaped recess, 17... Chain, 18・・・・・・Natsuto, 19
......Flexible support mechanism, 20...Connection part,
21...Link, 22...Notch, 23
・・・・・・Slope surface.

Claims (1)

[Scope of utility model registration request] The mounting arms, whose inner surface is an arc-shaped surface similar to the band main body, are hinged to both sides of the band main body, whose inner surface is an arc-shaped surface along the width direction, and support arms are protruded from the outer surface, so that they can rotate freely using vertical pins. On the other hand, a bent piece is provided on the outer edge of the mounting arm to be bent toward the outer surface side, and bolt through holes and arcuate recesses are formed at the outer openings of the through holes at multiple locations above and below the bent piece,
Insert a tightening bolt with a chain connected to its tip into each of the upper and lower bolt through-holes, attach a ball supported by an arcuate recess and a tightening nut to this tightening bolt, and then attach a bolt to the outside edge of the other mounting arm. 1. A band for attachment to an iron pole or the like, characterized in that connection parts with the chain are formed by horizontal notches at a plurality of upper and lower places of a bending piece provided so as to be bent toward the front.