JP2005187132A - Hanger for insulated protective tube of overhead distribution line - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe hanger which can hang many insulated protective tubes easily and stably. <P>SOLUTION: This hanger includes an electrical insulating hanger body plate (25) molded in a substantially inverted J shape as seen from the side face lockable to the opening edge (12) of a bucket (B) in the high place working vehicle (V), a supporting leg seat (27) jutted out backward integrally from the lower part of the hanger body plate and pushed to the wall surface of the bucket, and an hanger arm (28) for the insulated protective tube jutted out forward integrally from the mid-way height position of the hanger body plate as a generally single thread extended in a horizontal direction from the vertical bisector (Y-Y) of the hanger body plate. A suspension ring (20) attached to the insulated protective tube (C) of an overhead distribution line (11) is locked in a plurality of suspension ring receiving hooks (30a)(30b) jutted out and distributed integrally forward and/or backward from the hanger arm (28) in a lockable/releasable manner. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a hanger for suspending an insulation protective tube of an overhead distribution line on a bucket of an aerial work vehicle.

  In order to prevent the danger of overhead distribution lines on utility poles coming into contact with various structures, trees, construction machinery, etc., the insulation distribution pipes (commonly known as poly pipes) made of polyethylene resin are coated on the nearby overhead distribution lines In this case, it is necessary to hang a large number of insulation protection pipes on the bucket of an aerial work vehicle.

  The conventional hanger used for this purpose is composed of two metal wires (M1) and (M2) bent in a substantially S shape as shown in FIGS. 26 and 27, and one bolt (1) at the midway intersection. It is a handmade product that is fastened and integrated with the nut (2).

  And the 1st hook part (3a) (3b) narrowly arranged in the substantially parallel state of the upper end side is locked to the opening edge part (4) of the bucket (B) in an aerial work vehicle, and the remaining lower end side The suspension ring (7) attached to the joint (6) of the insulating protective tube (C) is locked to each of the second hook portions (5a) and (5b) in the widely opened state. It has become.

  However, such a hanger is composed of metal wires (M1) (M2), bolts (1) and nuts (2), and has conductivity, so that not only the safety of the worker cannot be ensured but also the metal wires. There is also a problem that unsightly scratches are given to the surface of the synthetic resin bucket (B) due to the large diameter head (1a) of (M1) (M2) and the bolt (1).

  In addition, the bent first hook portions (3a) and (3b) of the metal wires (M1) and (M2) do not stably engage with the opening edge portion (4) of the bucket (B), and the temporary bolt Even if the large-diameter head (1a) of (1) is supported on the wall surface of the bucket (B), the swinging of the bucket (B) and the reaction of the telescopic boom are easily changed. There is a risk that the bucket (B) may fall off even if the tree is touched slightly.

  Further, the second hook portions (5a) and (5b) of the metal wires (M1) and (M2) are not stable in the bending direction, and may be swung from the front end portion. It is difficult to lock the suspension ring (7) of the protective tube (C), and the direction and posture of the insulating protective tube (C) are not aligned / unbalanced even in the locked state. It is limited.

  The present invention is intended to improve such a problem, and as a hanger for an insulation protection pipe of an overhead power distribution line useful for that purpose, the upper part of the structure can be locked to an opening edge of a bucket in an aerial work vehicle. As a hook, a hanger body plate molded from an electrically insulating material such as fiber reinforced resin into a substantially inverted J shape in side view,

  A support leg base that projects rearward and integrally from the lower part of the hanger body plate and is pressed against the wall surface of the bucket;

  Similarly, the hanger body plate protrudes from the mid-height position of the hanger body plate as a whole, extending from the perpendicular bisector of the hanger body plate to the left and right sides in a uniform length. Hanger arm for insulated protective tube,

  The hanging ring attached to the insulation protection tube of the overhead power distribution line is slidably locked to a plurality of hanging ring receiving hooks that project from the hanger arm to the front and / or rear. It is characterized by.

  According to the said structure of Claim 1, the hanger body board (25) shape | molded from electrically insulating materials, such as fiber reinforced resin (FRP), the fixed length (L1) also including the latching hook (26) of the upper part Since it corresponds to the opening edge (12) of the bucket (B) in the aerial work vehicle (V), it is stably related to the opening edge (12) of the bucket (B) in a fitted state. 26 and 27, unlike the prior art described in FIGS. 26 and 27, there is no risk of accidental turning or turning, damage to the bucket (B), or even dropping from the bucket (B). .

  Moreover, the hanger arm (28) for the insulating protective tube projecting integrally forward from such a hanger body plate (25) is formed on both sides of the perpendicular bisector (YY) of the hanger body plate (25). It is in a left-right symmetric form extending in front and at a constant length (L2) that is substantially equal in the lateral direction. From now on, a plurality of suspension ring receiving hooks (30a) and (30b) are integrally projected and distributed forward or rearward. Therefore, the suspension ring (20) attached to the insulation protective tube (C) of the overhead distribution line (11) is locked to the plurality of receiving hooks (30a) (30b) as much as possible and in an orderly and stable manner. It is possible to easily release the locked state from above the bucket (B).

  In particular, if the configuration of claim 2 or claim 3 is adopted, multiple insulation protection tubes (C) interfere with the suspension ring receiving hooks (30a) (30b) of the hanger arm (28). It is possible to suspend it in an aligned posture, and its stability is further improved.

  If the structure of Claim 4 is employ | adopted, several types of insulation protection pipe | tubes (C) from which diameter (D2) differs will be simultaneously carried out to the suspension ring receiving hook (30a) (30b) of the hanger arm (28). It can be used hanging and is extremely convenient.

  Further, the hanging ring receiving hooks (30a) and (30b) of the insulating protective tube (C) are made of the same fiber reinforced resin (FRP) as the hanger body plate (25) and the hanger arm (28) as described in claim 5. If the hanger arm (28) is continuously extended and distributed as a molded part, the safety of the operator can be ensured by the overall electrical insulation, while the hanging ring receiving hooks (30a) (30b) are provided. ) As a separate electrically insulated metal tapping screw (31a) (31b) and fixed to the hanger arm (28), the suspension ring hooks (30a) (30b) should be damaged. Even in this case, there is an effect that it can be used by replacing it with a new one.

  If the structure of Claim 6 is employ | adopted, many insulation protection pipes (C) can be hung and used stably in a right-and-left balance state, and the hanger which makes the substantially V shape or the inverted V shape of the front view. There is an effect that it is possible to suspend several types of insulating protective tubes (C) having different lengths from the suspension ring receiving hooks (30a) and (30b) of the arm (28) without hindrance.

  Furthermore, if the structure of Claim 7 is employ | adopted, a hook (26) of a hanger main-body board (25) will receive turning of a bucket (B) and reaction of an expansion-contraction boom (10), and a bucket (B ) Can be reliably prevented by the support plate (33) of the hanger body plate (25), and the hot-line work at a high place can be performed safely. effective.

  Hereinafter, a specific configuration of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an aerial work vehicle (V), and a bucket (B) provided at a tip portion of the telescopic boom (10). An operator stands on the inside of the housing, and performs the work of covering the insulating protective tube (C) with respect to the aerial distribution line (11) on the utility pole and the work of removing it.

  As is well known, the bucket (B) itself is integrally formed from a fiber reinforced resin (FRP) into a square in plan view, and then pivotally attached to the tip of the telescopic boom (10) on the wall surface so as to be pivotable. ing.

  Further, as shown in FIG. 2, the opening edge (12) of the bucket (B) continuously protrudes outward as a flat reinforcing flange, and thereafter, a plurality of reinforcing flanges on the three wall surfaces excluding the wall surface are provided from above. The liner protector (14), which is also made of a hard synthetic resin, is formed by a fixing bolt (13) and a nut (not shown).

  On the other hand, the insulation protective pipe (C) of the overhead distribution line (11) is also known, and a straight pipe body (15) mainly made of polyethylene resin as shown in FIGS. It consists of a socket-type joint (16) that is deposited and integrated in an extended state, and has an overall length of, for example, about 3 m or about 5 m. However, continuous splits (17) and (18) extending along the longitudinal direction are arranged in both the pipe main body (15) and the joint (16). It can be pushed open.

  (19) is a trumpet-shaped expanded flange forming the base end edge of the joint (16), and has the largest diameter (D1). (20) is a suspension ring that is continuous therewith, and (21) is a locking flange that projects from the tip edge of the joint (16), and has a diameter (D2) larger than the diameter (D2) of the pipe body (15). It goes without saying that D3) is provided.

  Further, (22) is a circular concave groove defined in the middle of the joint (16), and corresponds to a wedge flange (23) protruding from the tip edge of the pipe body (15). Therefore, as indicated by the chain line in FIG. 5 for the plurality of insulating protective tubes (C), the wedge flange (23) of the tube body (15) on the adjacent one side is also used as the concave circumferential groove of the joint (16) on the other side. (22) It can be connected and used in series by being inserted and locked in. Reference numeral (24) denotes a plurality of annular ribs for reinforcing the joint (16).

  As shown in FIG. 1, the hanger (A) for the insulation protective pipe of the present invention is a live work tool for hanging a large number of the insulation protective pipes (C) on the bucket (B) of the aerial work vehicle (V). It is manufactured as follows from the electrically insulating material of the component.

  That is, FIGS. 8 to 20 show a basic embodiment of the hanger (A) according to the present invention and a state in which the hanger (A) is attached to the bucket (B), and (25) shows the bucket (V) of the aerial work vehicle (V). B) A hanger body plate integrally formed into a substantially inverted J shape in side view having a certain height (H1) (for example, about 324 mm) from a fiber reinforced resin (FRP) similar to B), and having a certain length (L1 ) (For example, about 215 mm), the hook hook (26) bent at the upper portion thereof corresponds to the opening edge portion (12) provided with the liner protector (14) of the bucket (B). Thus, the opening edge (12) is stably locked in the fitted state as shown in FIGS. The locking depth (overhang amount) (H2) of the locking hook (26) with respect to the bucket (B) is, for example, about 100 mm.

  On the other hand, the lower part of the hanger body plate (25) is projecting integrally from the hanger body plate (25) as a support leg seat (27) to the bucket (B), and the locking hook (26) is At the time of use locked to the opening edge (12) of the bucket (B), it is pressed against the wall surface of the bucket (B) to keep the hanger body plate (25) in a substantially vertical stable state.

  In this regard, in the illustrated example, the above-mentioned support leg seat (27) is formed as a single U-shaped section extending by a certain length (L1) of the hanger body plate (25), and from the lower part of the hanger body plate (25). Although it is integrally formed in a rearward projecting state, for example, a plurality of contact leg seats (not shown) made of separate rubber or other electrically insulating materials are distributed in a scattered state to the rear surface of the hanger body plate (25). The above functions may be exerted by fixing them.

  (28) is for an insulating protective tube projecting from the midway height position of the hanger body plate (25) through a support and reinforcing stay (29), which is reversely integrated integrally by a predetermined distance (W) (for example, about 150 mm). When the hanger arm is viewed from the front as shown in FIG. 8, the hanger body plate (25) has a substantially equal fixed length (YY) from the vertical bisector (YY) to both the left and right lateral directions ( L2) (for example, about 373 mm), so to speak, it extends as an overall line in a distributed horizontal state.

  Moreover, the hanger arm (28) has a substantially inverted U-shape with a rigid cross section, and a suspension ring receiving hook (30a) projecting integrally forward from the vertical surface and a suspension ring receiving hook projecting integrally rearward. A plurality of (30b) are arranged in a scattered distribution state maintaining a constant pitch (P1) (P2), respectively, and the above-mentioned insulation protection pipes are connected to these suspension ring receiving hooks (30a) (30b). The suspension ring (20) attached to the joint (16) of (C) can be releasably locked.

  At this time, the interval between the suspension ring receiving hooks (30a) and (30b) is such that a large number of the insulation protection tubes (C) are suspended in an aligned posture without interfering with each other's neighboring fraud. The pitch (P1) (P2) is dimensioned slightly larger than the diameter (D1) of the trumpet-shaped expansion flange (19) in the insulating protective tube (C).

  In this regard, in the basic embodiment of the hanger (A), the forward hanging ring receiving hook (30a) and the rear hanging ring receiving hook (30b) are substantially L-shaped in a symmetric side view facing each other. As shown in FIG. 19, the hanger arm (28) is distributed so as to project in the opposite direction from the same part, but by projecting from the alternate part of the hanger arm (28), the forward hanging ring receiving hook (30a ) And the rear suspension ring receiving hook (30b) may be distributed in an overall zigzag arrangement, and the suspension ring receiving hook (30a) only from the hanger arm (28) toward the front or rear. ) (30b) may be overhang distributed.

  21 to 25 illustrate various modified embodiments of the hanger (A) according to the present invention, and as is apparent from the first modified embodiment of FIG. 21, the hanger arm (28) is projected and distributed forward. By changing the interval pitch (P1) of the suspension ring receiving hooks (30a) and the interval pitch (P2) of the suspension ring receiving hooks (30b), which are also distributed in a rearward direction, from each other, the diameter (D2) is changed. You may determine so that several types of different insulation protective pipes (C) can be suspended and used simultaneously.

  In the case of the above-described basic embodiment shown in FIGS. 8 to 20, the hanger arm (28) extends as a whole in a horizontally horizontal state as viewed from the front, but the hanger arm (28) is the second one shown in FIG. As shown in the modified embodiment, the hanger body plate (25) is refracted from the vertical bisector (YY), and is refracted as a substantially symmetrical V-shape or inverted V-shape in front view. It is also possible to extend in a state of rising or falling sideways.

  In addition, as for the cross-sectional shape of the hanger arm (28), a hollow circle or a square as shown in the third modified embodiment of FIG. 23 may be adopted instead of the inverted U-shape of the basic embodiment. Further, the hanging ring receiving hooks (30a) and (30b) extending from the hanger arm (28) are not limited to the L-shape in the side view described in the basic embodiment, but the side surface as shown in FIG. You may shape | mold in the substantially U shape of vision, and another bending shape.

  Similarly, in the above-described basic embodiment of FIGS. 8 to 20, the hanging ring receiving hooks (30 a) and (30 b) are used as molded parts made of the same fiber reinforced resin (FRP) as the hanger body plate (25) and the hanger arm (28). The hanger arm (28) is continuously and integrally distributed from the hanger arm (28), and the hanger has hook-shaped metal tapping screws (31a) (31b) as shown in the fourth modified embodiment of FIG. It may be attached and fixed to the front and rear surfaces of the arm (28) in a retrofitting manner. In this case, the hook-shaped head that protrudes from the hanger arm (28) is exposed to a synthetic resin film (not shown) or the like. It is desirable to electrically insulate by other means.

  Further, in the case of the basic embodiment, as is apparent from FIGS. 12 and 17, the hanger arm (28) for the insulating protective tube to which the suspension ring receiving hooks (30a) and (30b) are attached is connected to the supporting and reinforcing stay (29 ) And the support leg seat (27), the hanger (A) formed continuously and integrally with the hanger body plate (25) from the fiber reinforced resin (FRP) is shown, but is apparent from the fifth modified embodiment of FIG. As described above, the hanger arm (28) is attached to the support and reinforcement stay (29) as a continuous unit, and formed separately and independently from the hanger body plate (25), and then a plurality of metal tapping screws. (32) is attached and fixed to the front surface of the hanger body plate (25), and the tapping screw (32) is also covered with an adhesive such as epoxy resin for electrical insulation treatment. It is also possible to finish the guard (A).

  Since the other configurations in the first to fifth modified embodiments are substantially the same as those in the basic embodiment, only the corresponding reference numerals to those in FIGS. 8 to 20 are entered in FIGS. The detailed explanation is omitted.

  Next, the subsequent reference numeral (33) in FIGS. 8 to 20 shows a support plate (check valve plate) of the hanger body plate (25) with respect to the opening edge (12) of the bucket (B). It is bent and formed at an obtuse angle from a urethane rubber or other electrically insulating elastic material having a constant length (L1) substantially equal to that of the main body plate (25), as a substantially square shape in a side view. (X) is the bent ridgeline, and serves as a fulcrum for the undulating opening and closing action.

  The lower half of the support plate (33) is joined to the middle height position of the hanger body plate (25) from the back, and is fixed by a plurality of bolts (34) and nuts (35). On the other hand, a liner plate (36) such as bakelite or hard synthetic resin is bonded and integrated on the upper end of the support plate (33) extended from the bent ridge line (X) to the inclined state. Yes. The bolt (34) and the nut (35) are also made of an electrically insulating material such as polycarbonate resin or ABS resin.

  In this case, as apparent from FIG. 20, when the hook (26) of the hanger body plate (25) is locked to the opening edge (12) of the bucket (B), the opening edge ( 12) and the vertical distance (H3) between the upper end of the support plate (33) is the same as the locking depth (overhang amount) (H2) of the locking hook (26) with respect to the opening edge (12). In other words, it is set in relation to a shallow and short dimension, so that the above-mentioned support plate (33) quickly hits the opening edge (12) of the bucket (B) from below, so that the bucket (B ) So that the hooks (26) of the hanger body plate (25) never fall out of the opening edge (12).

  However, the support plate (33) can perform an undulating opening and closing action from the bent ridge line (X), and then the upper end portion of the support plate (33) in an upright inclined posture is placed on the hanger body plate (25). The hooks (26) of the hanger body plate (25) are attached to the bucket (B) by forcibly pulling up from the front of the hanger body and elastically contacting the hanger body plate (25) with the rear surface. The opening edge portion (12) can be engaged and disengaged without hindrance.

  For this purpose, (37) is made of a single rigid synthetic resin planted and fixed in a forwardly inclined posture state substantially orthogonal to the center of the upper end of the support plate (33), using the liner plate (36) as a support base. It is a countersunk screw, and a undulating opening and closing operation handle (39) of the support plate (33) is fastened to the front end of the screw shaft portion via a rigid synthetic resin nut (38). Yes.

  The handle (39) has a rectangular or elliptical shape when viewed from the front, and is also formed from a hard synthetic resin. The nut (38) is embedded in the boss portion so as not to idle, while the countersunk screw ( The conical head of 37) is also fixedly integrated with the liner plate (36) of the support plate (33), so that the handle (39) can be rotated relative to the countersunk screw (37). (40) is a pulling operation belt moored to the screw shaft portion of the countersunk screw (37).

  Further, (41) corresponds to the undulating opening / closing operation handle (39) of the support plate (33), and for the handle notched in the middle portion of the midway height position on the hanger body plate (25). A sunken window, a long side (E1) that is wider than the long side of the elongated handle (39), and a short side that is narrower than the long side of the handle (39) and wider than the short side of the handle (39) It opens to the rectangular outline shape of the front view provided with edge | side (E2). And the said belt (40) is always derived | led-out to the front of the hanger main-body board (25) through the in / out window (41).

  That is, in order to keep the support plate (33) from dropping the locking hook (26) of the hanger body plate (25) from the opening edge portion (12) of the bucket (B), as shown in FIGS. When the operator pulls the belt (40) forward from a state bent in such a rearwardly inclined posture, the handle (39) is moved into and out of the hanger body plate (25) as shown in FIG. Since the handle (39) is rotated by about 90 degrees as shown in FIG. 16, the handle (39) is locked to the cover window (41) of the hanger body plate (25) as shown in FIG. is there.

  Then, as shown in FIG. 17, the support plate (33) is pulled up in a substantially vertical posture from its bent ridge line (X) and is elastically adhered to the rear surface of the hanger body plate (25). Therefore, the latch hook (26) of the hanger body plate (25) can be removed from the opening edge (12) of the bucket (B) without any trouble.

  Further, in the same raising posture state of the support plate (33), the locking hook (26) of the hanger body plate (25) is locked to the opening edge (12) of the bucket (B). After that, if the handle (39) is rotated by about 90 degrees in the reverse direction to release the latching state of the handle (39) with respect to the projecting window (41) of the hanger body plate (25), As a result of the thrust support plate (33) returning to the initial rearwardly inclined posture state, the effect of preventing the hanger body plate (25) from falling off the opening edge (12) of the bucket (B) as shown in FIG. 20 can be obtained. Needless to say.

It is a whole schematic front view which shows the suspended state of the insulation protective tube by use of this invention. It is a perspective view which shows the state which latched the hanger of this invention to the bucket of an aerial work vehicle. It is a front view which extracts and shows the insulation protective tube of an aerial distribution line. FIG. 4 is a side view of FIG. 3. FIG. 5 is a sectional view taken along line 5-5 of FIG. FIG. 6 is an enlarged cross-sectional view taken along line 6-6 in FIG. FIG. 7 is an enlarged cross-sectional view taken along line 7-7 in FIG. 3. It is a front view which extracts and shows the hanger of this invention. It is a rear view of FIG. It is a top view of FIG. It is the 11-11 line sectional view of FIG. It is a 12-12 line sectional view of Drawing 8. It is an expanded sectional view which follows the 13-13 line of FIG. It is the elements on larger scale which extract and show the appearance window of a hanger body board. FIG. 15 is a perspective view showing a state where a handle is pulled forward from FIG. 14. FIG. 16 is a perspective view of a state in which the handle is rotated from FIG. FIG. 17 is an overall side sectional view of FIG. 16 and corresponds to FIG. 12. It is a front view which shows the latching state of the insulation protective tube with respect to the hanging ring receiving hook of a hanger arm. It is a top view of FIG. It is an expanded sectional view which follows the 20-20 line of FIG. FIG. 20 is a plan view corresponding to FIG. 19 showing a first modified embodiment of the present invention. FIG. 19 is a front view corresponding to FIG. 18 showing a second modified embodiment of the present invention. It is a side view of the hanger arm which shows the 3rd modification of the present invention. It is a sectional side view of the hanger arm which shows the 4th modification embodiment of the present invention. FIG. 13 is a side sectional view corresponding to FIG. 12 showing a fifth modified embodiment of the present invention. It is a perspective view of the state which attached the conventional hanger to the bucket. It is an expanded sectional side view of FIG.

Explanation of symbols

(10)-Telescopic boom (11)-Overhead distribution line (12)-Opening edge (15)-Pipe body (16)-Joint (19)-Expanding flange (20)-Suspension ring (21)-Locking Flange (25), Hanger body plate (26), Locking hook (27), Supporting leg seat (28), Hanger arm for insulation protective tube (29), Support reinforcement stay (30a) (30b), Suspension ring receiving hook ( 31a) (31b) · Tapping screw (32) · Tapping screw (33) · Supporting plate (34) · Bolt (35) · Nut (36) · Liner plate (39) · Handle (40) · Belt (41)・ Extrusion window (A) ・ Hanger (B) ・ Bucket (C) ・ Insulation protection tube (V) ・ Working vehicle at height (D1) ・ Diameter of expansion flange (D2) ・ Diameter of pipe body (H1) ・ Hanger Body plate height (L1 Hunger main plate length of (L2) lateral distribution length of - hanging ring receiving hooks (P1) (P2) · hanging ring receiving hook spacing pitch (Y-Y) perpendicular bisector of hanger body plate

Claims (7)

As an engagement hook (26) whose upper part can be engaged with the opening edge (12) of the bucket (B) in the aerial work vehicle (V), it is substantially inverted J-shaped in side view from an electrically insulating material such as fiber reinforced resin. A hanger body plate (25) molded into a mold,
A supporting leg seat (27) which projects rearward and integrally from the lower part of the hanger body plate (25) and is pressed against the wall surface of the bucket (B);
Similarly, the hanger body plate extends from the vertical bisector (YY) of the hanger body plate (25) to the left and right sides in a substantially equal length (L2). (25) a hanger arm (28) for an insulating protective tube integrally projecting forward from a midway height position,
From the hanger arm (28) to the plurality of suspension ring receiving hooks (30a) and (30b) that project integrally forwardly and / or backwardly, they are attached to the insulating protective tube (C) of the overhead distribution line (11). A hanger for an insulated protective tube for an overhead distribution line, characterized in that the suspension ring (20) is detachably locked.   The spacing pitches (P1) and (P2) of the suspension ring receiving hooks (30a) and (30b) which are integrally projected forward and / or rearwardly from the hanger arm (28) for the insulation protection tube, both of which are the insulation protection tube (C). The hanger for an insulated protective tube of an overhead distribution line according to claim 1, characterized in that the dimension is slightly larger than the diameter (D1) of the trumpet-shaped expanded flange (19).   The hanger arm (28) for the insulating protective tube is formed so that the forward hanging ring receiving hook (30a) and the backward hanging ring receiving hook (30b) are substantially L-shaped or substantially U-shaped in a symmetrical side view facing each other. 2. The hanger for an insulated protective tube of an overhead distribution line according to claim 1, wherein the hanger is integrally extended and distributed in the opposite direction from the same part or alternating parts.   An interval pitch (P1) of the suspension ring receiving hooks (30a) projecting forward and distributed from the hanger arm (28) for the insulation protective tube and an interval pitch (P2) of the suspension ring receiving hooks (30b) also projecting and distributed rearward. 2. The hanger for an insulation protective tube of an aerial distribution line according to claim 1, wherein the hangers are changed in width from each other. The hanging ring receiving hooks (30a) and (30b) are continuously and integrally projected from the hanger arm (28) as a molded part made of the same fiber reinforced resin as the hanger body plate (25) and the hanger arm (28) for the insulating protective tube. Or
Alternatively, as a metal tapping screw (31a) (31b) which is separately electrically insulated from the hanger arm (28), the hanger arm (28) is attached and fixed to the front surface and / or the rear surface. Item 1. An insulated protective tube hanger for an overhead distribution line according to item 1.   The insulation protection tube hanger arm (28) is in a generally horizontal state as viewed from the front or substantially symmetric V in front view that is refracted from the vertical bisector (YY) of the hanger body plate (25). 2. The hanger for an insulation protective tube of an overhead distribution line according to claim 1, wherein the hanger is extended as a letter shape or an inverted V shape. Attach and fix the lower half of the support plate (33) bent from an electrically insulating material, such as urethane rubber, into a substantially square shape in a side view, from behind to the mid-height position of the hanger arm (28). , Always keep in a tilted state of rising back,
The upper end portion of the support plate (33) is forcibly and manually pulled forward from the corresponding handle intrusion window (41) cut out in the hanger body plate (25), thereby the hanger body plate. The hook (26) of the hanger body plate (25) is engaged with and disengaged from the opening edge (12) of the bucket (B) by pulling it up in a substantially vertical posture in close contact with the rear surface of (25). 2. The hanger for an insulated protective tube for an overhead distribution line according to claim 1, wherein the hanger is defined so as to be freely locked.

Images