JPH0752881Y2 - Chain-type utility pole mounting bracket - Google Patents

Description

[Detailed description of the device]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chain-type power pole mounting bracket used for mounting and fixing a metal scaffold or the like on a power pole.

[0002]

2. Description of the Related Art A scaffold 5 called a platform constructed by combining pipe materials as shown in FIGS. 4 and 5, for example.
In order to mount and fix 1 to the electric pole 52, the electric pole mounting metal fitting 53 as shown in FIG. 4 was conventionally used.

That is, a conventional utility pole fitting 53 of this type is
At one end of the substantially V-shaped mounting bracket 54 having an obtuse angle,
One end of the clevis bolt 55 is horizontally rotatably fixed, and the base of the chain holder 56 is horizontally rotatably fixed to the other end of the mounting member 54. A tightening fitting 57 is provided on the outer circumference of the clevis bolt 55 so as to be slidable in the bolt axial direction, and a special wing nut 58 is screwed to the outer circumference of the clevis bolt 55 on the outer side thereof. Chain holder 5
6 has a substantially semi-elliptical spherical housing part, and the other end of the link chain 59 having one end fixed to the tightening fitting 57 is housed in the housing part, and then the lock pin 60.
Is inserted into the chain holder 56 from above and the other end of the link chain 59 is locked and held so that the other end cannot be removed.

A utility pole mounting bracket 5 having such a structure
When fixing 3 to the utility pole 52, first, link chain 5
The other end of 9 is stored in the housing part of the chain holder 56, locked by the lock pin 60, and then the special wing nut 58 is tightened to form the link chain 60.
Was tightened and fixed to the electric pole 52. The scaffold 51 is fixed to the electric pole mounting bracket 53 fixed in this way through the main body connecting bracket 61.

[0005]

However, such a conventional utility pole mounting bracket 53 has the following problems. First, since the chain holder 56 is located on the opposite side of the clevis bolt 55 by sandwiching the mounting bracket 54, when locking the other end of the link chain 59 to the chain holder 56, the link chain 59 is viewed from the clevis bolt 55 side. It is difficult to check the locked state in. For this reason, conventionally, the operator had to fix the utility pole mounting bracket 53 by holding his hand around the outer circumference of the utility pole 52, which was difficult. Furthermore, when the diameter of the utility pole 52 is small, the work can be performed in this way, but when the diameter is large, the hands cannot be reached even if both hands are turned, and thus the fixing work is extremely inconvenient.

[0006]

The present invention has been made in view of the above problems, and basically, the clevis bolt and the chain holder are arranged on the same side of the mounting bracket to solve the above problems. It is a thing.

However, simply arranging them on the same side causes a new problem. That is, clevis bolt 5
When arranging the chain holder 56 on the same side as 5, it is necessary to fix the chain holder 56 to the tightening metal fitting 57 that moves by tightening the special wing nut 58 in order to realize the tightening action, but simply so. If the chain holder 56 is simply fixed, the chain holder 56 will rotate vertically on the surface of the utility pole 52 together with the tightening fitting 57 due to the load of the chain holder 56. Link chain 59 that should be tightened
The chain holder 56 that locks one end of the electric pole must be brought into close contact with the surface of the electric pole 52. If the chain holder 56 rotates vertically on the surface of the electric pole 52, it is extremely difficult to work. Therefore, in order to place the chain holder 56 on the same side as the clevis bolt 55, simply attach the chain holder 56 to the clevis bolt 5
Even if it is just fixed to the tightening fitting 57 in 5, the inconvenient work will be forced.

Therefore, in this invention, in providing the chain holder on the clevis bolt side, a rotation preventing mechanism is provided on the clevis bolt side to solve the problem.

Specifically, a fixing member that covers at least the upper surface and the lower surface of the outer periphery of the fastening member is fixed to the fastening member, and the chain holder is directly or through an appropriate member on the protruding portion of the fixing member. Is rotatably supported in the horizontal direction, and shafts are fixed to the upper and lower surfaces of the outer periphery of the fixing member in the moving direction of the tightening fitting, and the upper and lower surfaces of one end of the clevis bolt on the mounting fitting side. The shafts are loosely inserted into the respective holes of appropriate members projecting from the above, and one end of the link chain fixed to the other end of the mounting bracket is detachably locked to the chain holder. is there.

[0010]

The shaft is fixed to the upper and lower sides of the fixing member integrated with the tightening metal fitting, and the shaft is fixed to the upper and lower sides of the end of the clevis bolt that rotates in the horizontal direction. Since the movable member is movable, even if the fixing member and the tightening metal member try to rotate in the vertical direction due to the load of the chain holder, the shaft is locked by an appropriate metal member such as an angle member, and this is prevented.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described below. FIG. 1 shows a plane, and 1 is a substantially V-shaped mounting bracket having an obtuse angle of inclination, and a clevis bolt at one end thereof. One end of 2 is provided so as to be rotatable in the horizontal direction.

The details will be described with reference to FIG. 2. One end of the clevis bolt 2 is formed into two upper and lower halves, and the end of the mounting member 1 is held in the space 3 formed between them. Further, angle members 4 and 5 each having a hole in a vertical piece are fixed to the upper and lower sides of the one end portion of the clevis bolt 2, respectively, and the pin 6 penetrates the angle member 4, the clevis bolt 2, and the angle member 5. Then, these are axially supported, holes are further formed in the upper and lower portions, and the upper and lower portions of the fixing member 7 having a hole through which the clevis bolt 2 penetrates are fixed to the vertical pieces of the angle members 4 and 5, respectively. A substantially cylindrical fastening member 9 is slidably provided on the outer periphery of the screwless portion 8 of the clevis bolt 2, and a fixing member 10 having a substantially U-shaped vertical cross section is provided on the outer periphery of the fastening member 9. The metal fittings 9 are fixed so as to be held, and the opposite ends of the metal fittings 9 are held inside, that is, the utility pole 11
Looking to the side.

The shaft 1 is provided on the upper and lower surfaces of the fixing member 10.
2 and 13 are fixed, the shaft 12 is loosely inserted into the upper hole of the fixing metal fitting 7 and the hole of the angle member 4, and the shaft 13
Is loosely inserted into the upper hole of the fixing metal fitting 7 and the hole of the angle member 5.

A special wing nut 15 is screwed on the outer periphery of the screw portion 14 of the clevis bolt 2. When the special wing nut 15 is turned in the tightening direction, the tightening fitting 9 is attached to the mounting fitting 1 side. The fixing member 10 and the shafts 12 and 13 that move together with the moving member slide at the same time in the same direction.

The space between the upper and lower ends of the fixing member 10 is shown in FIG.
3, one end of the link member 16 is pivotally supported by a pin 17 so as to be horizontally rotatable, and the other end of the link member 16 has the chain holder 1 shown in FIG.
Similarly, the base of 8 is pivotally supported by a pin 19 so as to be horizontally rotatable. The chain holder 18 has a substantially semi-elliptical spherical housing portion 20 with its opening surface facing outward. One end portion of the link chain 21 is housed in the housing portion 20, and then the lock pin 22 is inserted from above. Insert and penetrate the link chain 21
One end of the above is held in the housing portion 20.
The other end of the link chain 21 has a link member 23.
Mounting bracket 1 so that it can be rotated horizontally through
Is fixed to the other end of the.

On the outer side of the mounting member 1, the main body connecting member 6 shown in FIG. 4 described in the above-mentioned section of the prior art.
1 fixing holes 24, 25 are formed, and these holes 24, 25
A wing nut 26 for fastening and fixing is provided between 25.
Reference numeral 27 is a chain for preventing the lock pin 22 from being removed and lost.

This embodiment is constructed as described above,
When used, similar to the conventional utility pole mounting bracket of this type, first the mounting bracket 1 is laid along the utility pole 11, and the link chain 21 is passed over the outer periphery of the utility pole 11 and its end portion (free end) is used.
Is locked and held by the chain holder 18. After that, when the special wing nut 15 is tightened to move the tightening fitting 9 toward the fitting 1, the link chain 21 is tightened and the fitting 1 is fixed to the utility pole 11.

When performing such a work, the chain holder 18 for locking and holding the end portion of the link chain 21 and the clevis bolt 2 having the special wing nut 15 are on the same side. It is easy to carry out a series of work such as locking and checking, and tightening of the special wing nut 15 on one side.

Moreover, shafts 12 and 13 are fixed to the upper and lower sides of a fixing member 10 which is integrated with the tightening fitting 9,
Since these are slidable with the angle members 4 and 5 fixed above and below the end of the clevis bolt 2 that rotates in the horizontal direction and the holes above and below the fixing bracket 7, they are fixed by the load of the chain holder 18 or the like. Even if the member 10 and the tightening metal member 9 try to rotate in the vertical direction, the shafts 12 and 13 are locked to the angle members 4, 5 and the fixing metal member 7 and do not rotate in that way. Therefore, the chain holder 18 and the link member 16 fixing the chain holder 18 to the fixing member 10 are easily brought into close contact with the surface of the electric pole 11, and there is no harmful effect caused by disposing the chain holder 18 on the clevis bolt 2.

[0020]

According to the present invention, when fixing the mounting bracket to the utility pole, the chain holder for locking and holding the end of the link chain and the clevis bolt having a nut member such as a special wing nut are on the same side. It is easy to work because it can perform a series of operations such as locking the link chain, checking it, and tightening the nut member on one side.

Moreover, even if the chain holder is arranged on the same side as the clevis bolt or the like in this way, the fixing member and the tightening fitting will not rotate vertically due to the load of the chain holder.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a front view of the chain holder used in the embodiment.

FIG. 4 is a plan view showing a state in which a metal scaffold is fixed to an electric pole by a conventional technique.

FIG. 5 is a side view of a metal scaffold to be fixed to a utility pole.

[Explanation of symbols]

 1 Mounting Bracket 2 Clevis Bolt 3 Bolt Material 4 Angle Material 5 Angle Material 6 Pin 7 Fixing Bracket 8 Non-Screw Part 9 Tightening Bracket 10 Fixing Member 11 Power Pole 12 Shaft 13 Shaft 14 Screw Part 15 Special Wing Nut 18 Chain Holder 21 Link Chain

Claims (1)

[Scope of utility model registration request] 1. A clevis bolt having one end rotatably provided in a horizontal direction at one end of a mounting metal fitting closely attached to the surface of a utility pole and tightening a nut member screwed to the clevis bolt. The fastening metal fitting slidably attached to the outer periphery of the above moves to the one end side of the above mounting fixture, and the link chain passed between the other fastening fitting and the other end of the above mounting fixture is installed around the outer circumference of the utility pole. In a chain-type utility pole mounting bracket in which the mounting bracket is fastened to the utility pole, the fixing member covering at least the upper surface and the lower surface of the outer periphery of the tightening bracket is fixed to the tightening bracket, and the fixing member is fixed. A chain holder is rotatably rotatably supported in the horizontal direction directly or through an appropriate member on the projecting part of the fixing member, and shafts are fixed to the upper and lower surfaces of the outer periphery of the fixing member in the moving direction of the tightening fitting, respectively. the above One end of the link chain fixed to the other end of the mounting bracket by allowing the shafts to freely penetrate through the holes of appropriate members projecting from the upper surface and the lower surface of the one end of the clevis bolt on the mounting bracket side, respectively. A chain-type utility pole mounting bracket, characterized in that it is detachably locked to the chain holder.