JP2607113Y2 - Pin insulator fixing arm - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arm for fixing a pin insulator for supporting an overhead distribution line.

[0002]

2. Description of the Related Art Heretofore, as this kind of arm, there has been known an arm in which a pin insertion hole having a required diameter is formed in the upper and lower sides of a pipe arm body having a required length. The arm clamp inserts the pin of the pin insulator into the pin insertion hole from above, and then screw-fastens a nut to a threaded portion formed at the tip of the pin via a washer to fix and support the nut.

[0003]

[Problems to be Solved by the Invention] By the way, in recent years, the number of cases of using an indirect live tool or a robot tool for uninterruptible construction of an overhead distribution line has increased, but various problems have been raised. ing. That is, since a large number of arm bars are attached in a state close to required portions of the utility pole, the working space is necessarily extremely narrow. Therefore, aside from the direct work by hand, when the pin insulator is indirectly fixed to the arm by the indirect live tool or robot tool, the fixing work is very troublesome and troublesome, and the work efficiency is extremely poor. In addition, there is a possibility that the indirect live tool or the like may come into contact with another adjacent arm or wire during the operation to cause a short circuit accident. In addition, since the conventional arm has a configuration in which the pin of the pin insulator is inserted into the pin insertion hole and the nut is screwed into the screw portion, the mounting work of the nut by the indirect live tool or the robot tool is performed. Is very difficult.

[0004] This invention solves the conventional problems at a glance, and even in a narrow work space, a required pin insulator can be easily and reliably fixed efficiently by an indirect hot-line tool or a robot tool. It is an object of the present invention to provide a pin insulator fixing arm which can be used.

[0005]

That is, the present invention provides a pin
Slot-shaped pin insertion holes 3 and 4 are formed in the upper and lower portions along the longitudinal direction of the pipe arm body 2 so as to allow the pins 9 of the insulator 8 to be inserted in an inclined manner. Nut insertion holes 5 and 6 of required diameter intersecting insertion holes 3 and 4
The upper and lower nut insertion holes 5 and 6 and the upper and lower pin insertion holes 3 and 4 are used to insert the pins 9 of the pin insulator 8 to which the nuts 12 are temporarily fixed. Insertion
The nut 12 is screwed into the pin 9 while being fitted in the holes 3 and 4.
Those that are configured to allowed to fix screwed to 10.

[0006]

[Action] Ru allowed through the pin 9 of the required pin insulators 8 nuts 12 or the like in a state of being temporarily fixed from obliquely upward in a vertical section the pin insertion hole 3, 4 and the upper and lower portions nut passing hole 5.6. And
Slide the inserted pin 9 along the upper and lower pin insertion holes 3 and 4.
Id allowed while fitting together Shi Metanochi, the nut 12 pin 9
And can be fixed to the arm 1 by screwing .

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a first embodiment of the present invention. Reference numeral 2 denotes a metal pipe arm main body having a required length and a circular cross section, and reference numerals 3 and 4 denote grooves having a required length formed vertically above and below the arm main body 2 along the longitudinal direction thereof. Perforated upper and lower pin insertion holes, 5.6
Communicates with approximately the middle of the upper and lower pin insertion holes 3 and 4 and intersects
In the upper and lower nut passing hole having a required diameter is formed in Jo, lower pin insertion hole 4 of the slightly formed shorter than the upper pin insertion holes 3, The lower nut insertion hole 6 the upper nut passing It is located at a position slightly shifted from the hole 5. Reference numeral 7 denotes a pair of substantially arcuate projections on both sides, one end of which is formed upright along the edge of the upper pin insertion hole 3. In addition, 8 is a pin insulator, 9 is a pin of a required length constituting the pin insulator 8, 10 is a threaded portion formed at the tip of the pin 9, and 11 is a flange-shaped formed at the upper end of the pin 9. Stoppers 12 are nuts that can be screwed into the screw portion 10,
Reference numeral 13 denotes a washer, and 14 denotes an articulated robot.

Next, the operation of the embodiment configured as described above will be described. First, the washer 13 and the nut 12 are temporarily fixed to the screw portion 10 of the pin insulator 8. After a while
The pin insulator 8 is gripped and operated by the articulated robot 14, and the leading end of the pin 9 of the pin insulator 8 is inserted into the upper nut insertion hole 5 together with the temporary fixing nut 12 while guiding the pin insulator 8 into the upper pin insertion hole 3 from diagonally above. (See FIGS. 2 and 3a). When the insertion of the temporary fixing nut 12 and the like is completed, the pin insulator 8 is further inserted along the hole edge of the upper pin insertion hole 3 in an inclined state, and the stopper 11 is locked to the protruding piece 7 and the lower nut Temporarily fix the tip of pin 9 from insertion hole 6
Then, it is inserted along with the female nut 12 and the like, and then gradually raised along the edge of the lower pin insertion hole 4 (see FIGS. 3B and 3C). Next, the nut 12 is screwed into the screw portion 10 via the washer 13 and fastened by fixing the stopper 11 of the pin insulator 8 to the upper surface of the arm member main body 2 and the protruding piece 7 under the state where the stopper 11 is locked. is there.

In the above embodiment, the arm body 2 is formed in a circular cross section, but may be formed in a known shape such as a square cross section. Although the upper and lower nut insertion holes 5 and 6 are formed substantially at the middle of the upper and lower pin insertion holes 3 and 4, respectively, the shape of the arm body 2 and the size and shape of the pin insulator 8 are not limited. May be formed at required positions as appropriate.

[0010]

[Effect of the invention] According to the invention, the pin insulator
Slot-shaped pin insertion holes 3 and 4 are formed above and below the pipe arm member main body 2 in the longitudinal direction thereof so as to allow the pins 9 of the armature 8 to be inserted in a tiltable manner. intersects the insertion hole 3, 4 will be formed in the nut insertion hole 5-6 are each communicating like required diameter, the upper and lower nut insertion hole 5, 6 and top and bottom pin insertion holes 3, 4 to the nut 12 Insert the pin 9 of the temporarily fixed pin insulator 8 into the pin insertion hole.
The nut 12 is screwed into the screw portion 1 of the pin 9 while being fitted to 3.4.
Since 0 is configured to allowed to fix screwed, the upper and lower pin inserting hole of the required pin insulators 8 nuts 12 or the like in a state of being temporarily fixed from an oblique upper 3, 4 and the upper and lower portions nut passing hole 5.6 allowed inserted into and be one that can be fixed to the arm Reserve 1, a narrow working space - even under scan, readily by indirect hot tool or robot tool 14, moreover, safety, and reliably to efficiently fix Can do that.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the pin insulator 8 is fixed by the articulated robot 14;

FIG. 3 is a partially enlarged sectional view showing a fixed state of the pin insulator 8;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Arm metal 2 Arm metal main body 3 Upper pin insertion hole 4 Lower pin insertion hole 5 Upper nut insertion hole 6 Lower nut insertion hole 7 Projection piece 8 Pin insulator 9 Pin 10 Screw part 12 Nut

Claims (2)

(57) [Scope of request for utility model registration] 1. A pin 9 of a pin insulator 8 is inserted so as to be tiltable.
In order to shorten the length of the pipe arm body 2, slot-shaped pin insertion holes 3.4 are formed at the upper and lower sides of the pipe arm body 2 so as to face each other and intersect the upper and lower pin insertion holes 3.4. nut insertion holes 5, 6 of the required diameter is formed in each communication form, the <br/> upper and lower nut insertion hole 5, 6 and top and bottom pin insertion hole 3,
4 insert the pin 9 of the pin insulator 8 with the nut 12 temporarily fixed
Then, the nut 12 is fitted in the pin insertion holes 3 and 4.
Characterized by comprising configured to allowed to fix screwed into the threaded portion 10 of the pin 9, pin insulators fixing arm-. 2. One end of the upper pin insertion hole 3 is provided with an insertion pin
Engaged with the insulator 8, characterized in that on both sides a pair of projecting pieces 7 is formed to allowed to prevent the retaining pin insulators fixing arm-according to claim 1, wherein.