JP3483206B2 - Branch line guard - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch line guard for guarding a branch line of a utility pole to a certain height on the ground side, and more particularly to a branch line guard attached to a branch line after the branch line is mounted on the branch line. The guard comes off, the branch line is not centered in the guard, the fastener for closing the guard comes off, parts of this fastener are lost, or the guard shifts above the branch line The present invention relates to a branch line guard which is designed to prevent the occurrence of a shortage and to cope with the thickness of the branch line with a small standard size. [0002] A branch line guard is mounted at a height of 2 to 3 m from the ground for the purpose of protecting the branch line and preventing a pedestrian or the like from directly touching the branch line and being injured. Things.
The typical shape of this type of conventional branch line guard is to cut a groove vertically in a synthetic resin cylindrical body, open this groove and insert a branch line inside, so that the guard does not open on it The slot is fastened with a band or riveted fastener. [0003] In addition, a cap is usually placed on the upper end of the guard to prevent rainwater or the like from entering the inside of the guard, or a branch line holding body is provided in the guard to keep the branch line in the center of the guard. Some have been incorporated. These configuration examples are disclosed in
JP-A-139223, JP-A-8-086121, JP-A-7-133682, JP-A-61-80959, and Utility Model Registration No. 3032437. With regard to fasteners, JP-A-5-302609 and JP-A-1-165810. (Hereinafter referred to as "known examples"). However, the known examples described in the above publications have the following disadvantages. 1. In the branch line holding body, the split groove is formed in a straight line toward the center so that it can be easily attached to the branch line, so when external pressure is applied in the direction of the split groove, the guard can easily come off the branch line, The branch line may stop in the middle of the split groove. In particular, if the car touches the guard or the lower part of the guard (branch line) is trampled with tires
(This is the most common example), not only does the guard deform,
In many cases, branch lines are exposed or come off from the guard groove. [0005] 2. Next, in the case of the method of opening the split groove and storing the branch line in the guard, a band is wound around the guard and fixed so that the guard is open and does not come off from the branch line,
This takes time. This is particularly remarkable when the band is fixed at several places including the top and bottom. 3. Instead of the above band method, rivets are attached to both ends of the base straddling the split groove, and the rivet is inserted into the rivet holes formed on both sides of the split groove. In some cases, the rivets are easily pulled out due to mischief, and this is not perfect. [0006] 4. In order to improve the rivet method, a push rivet in which a rivet (shaft) is extended inside the rivet hole has been proposed, but in this case, there is an advantage that it is difficult to pull out, but a disadvantage that the push pin is easily lost. There is. 5. In the guard body, a branch line holding hole is formed at the center of the branch line holding body, and in this hole, several projections are usually formed on the circumference, but because the thickness of the branch line is not constant, It is necessary to prepare many types of guards or branch line holders (standards) according to the thickness of the branch line, or if the size does not match, the split groove will be open because the branch line is thick, and There is a drawback that rattling occurs in between. 6. Guards may lift (shift) along branch lines. 7. Rainwater and dust can easily enter the guard and adversely affect branch lines. SUMMARY OF THE INVENTION The present invention has been made in view of the above point, and a first object of the present invention is to propose a branch line guard which is hardly detached from a branch line. A second object is to propose a fastener that does not require much time for mounting and does not lose components (push pins). Further, a third object is to propose a branch line guard that can use many types of guards regardless of the thickness of the branch line.
Further, a fourth object is to propose a branch line guard in which the guard does not shift upward and rainwater or the like does not enter the guard. Furthermore, the second purpose is to reduce the size of small standards.
Propose a branch line guard that can handle the thickness of branch lines.
And In order to achieve the above object, according to the first aspect of the present invention, in the branch line guard, one split groove is formed in the cylindrical guard body in the longitudinal direction. branch carrier with a branch line holding hole is fixed to the center for this guard body with is formed, the cap is the crown on the upper end of the guard main body, the key point of the split groove of the guard main body, A push rivet type fastener for preventing the split groove from opening is detachably attached, and in the branch line holding body, a branch line receiving port is provided on a part of the outer peripheral surface for guiding and inserting a branch line into the branch line holding hole. The branch line insertion groove formed and following this branch line receiving port is
Have been changed orientation relative to the branch receiving port, further wherein branch line receiving port is opposed partially split groove of the guard main body, skirt split groove in the longitudinal direction is formed in the skirt portion of the cap, The top plate portion is formed with a top plate split groove bent on the way to the branch line through hole formed at the center of the top plate portion following the skirt split groove, and further, on the top plate portion of the cap, A radius split groove is formed from the branch line holding hole on the opposite side of the top plate split groove , the skirt split groove is aligned with the split groove of the guard main body, and the cap and the branch line holding body are guarded by push rivets. In the branch line guard fixed to the main body , the branch line
In the support line holding hole of the holder and the support line holding cylinder of the cap
Is an elastic branch line that is divided into multiple parts and has folds on the lower surface.
The holding tongue is formed toward the center . A rivet is fitted and fastened to only one of the fasteners in advance at the split groove of the guard body. Then, when the split groove is opened, the split groove of the cap and the branch line holding body is opened together, and the branch line can be inserted into the center of the guard main body via the split groove and positioned in the holding hole. Then, insert the other rivet into the rivet hole, push in the push pin and open the rivet shaft inside the hole to prevent the rivet from coming off. As a result,
Guard body does not open. When removing the guard from the branch line, pull out the push pin, the rivet legs close,
It can be pulled out from the rivet hole. As a result, it becomes possible to reopen the guard body with the split groove and remove it from the branch line. Note that the rivet of the fastener may be attached after the branch line is accommodated in the guard. The branch line in the guard main body is accommodated in the branch line holding hole at the center of the guard main body, and since the directions of the split grooves formed in the branch line holding body and the cap are changed in the middle, the branch line is unidirectional. It does not come off the split groove with external pressure.
When a flexible tongue is formed in the branch line holding hole, the tongue is freely bent (displaced) according to the thickness of the branch line to hold the branch line. It is in contact with and does not cause backlash. In addition, since this tongue has a degree of freedom with respect to the thickness of the branch line, it can be used for a branch line having a different thickness with one kind of guard. In addition, in the branch line holding projections in the branch line holding holes, the ends of the split grooves on both sides of the split groove are formed at an acute angle so that the branch lines are less likely to come off. Further, when an upward fold is formed on the branch line holding tongue, the fold serves as a non-slip between the tongue and the branch line, thereby preventing the guard from shifting upward. The cap cover also prevents rainwater and dust from entering the guard from the slot and the hole of the cap. Embodiments of the present invention will be described with reference to FIGS. 1 to 24. FIG. 1 shows a state in which a guard 1 according to the present invention is mounted on a branch line 101 of a utility pole 100. As shown in FIG. 2, the guard 1 used in this way has a split groove 3 formed in a cylindrical guard body 2 as shown in FIG. 2, and a branch line holder 4 in the guard body 2 as shown in FIGS. Are fixed at regular intervals, fixed with a push rivet 20, covered with a cap 5 at the upper end and fixed with a push rivet 20 in the same manner, and as shown in FIGS. The split groove 3 is to be fastened with a push rivet type fastener 6. The structure of each part and parts will be described in more detail. The guard body 2 is made of a synthetic resin and has an appropriate hardness and flexibility. When the guard body 2 is put on the branch line 101, the guard body 2 can be half-opened by the split groove 3. Configuration. The guard body 2 is provided with rivet holes 7 and 7a for fixing the branch line holding members 4 from both sides at fixed intervals, and along the split grooves 3, as shown in FIG. Rivet holes 8 and 8a are provided at intervals, and the lower end of the guard body 2 is cut obliquely 9 according to the angle contacting the ground. The structure of the cap 5 is shown in FIGS. 7 to 11, and the material is the same as that of the guard body 2. The cap 5 has a skirt portion 10, a conical top plate 11, a branch line through hole 12 formed at the center of the top plate 11, and a branch line holding cylinder formed continuously inside the through hole 12. A skirt portion groove 14 is formed in the skirt portion 10, and the top plate portion 11 is provided with a top plate split groove 15 extending from the upper end of the skirt portion groove 14 to the branch line through hole 12. Is formed.
The top plate dividing groove 15 continues to a cylindrical division groove 16 of the branch line holding cylindrical portion 13 following the branch line through hole 12. Further, the top plate parting groove 15 is provided with a bent portion 17
Is formed. Further, on the top plate portion 11 of the cap 5, on the side opposite to the top plate portion split groove 15, a radius split groove 18 is formed from the branch line through hole 12. Reference numeral 19 denotes an annular groove formed inside the skirt portion 10 in the cap 5, the upper end edge 2a of the guard body 2 is fitted in the annular groove 19, and the cap 5 is provided with the rivet 20, the rivet hole 7 and the rivet hole 7. , 7a and is fixed to the upper end of the guard main body 2. The cap 5 has a skirt split groove 14 formed in the guard body 3.
Align the guard body 2 with the slot 3
When the cap 5 is opened, the cap 5 is opened halfway together with the guard main body 2 at the skirt split groove 14, the top plate split groove 15, and the radius split groove 18, and the branch line holding cylindrical portion 13 is split at the cylindrical split groove 16. The branch line holding member 4 is shown in detail in FIGS. 12 to 14. The branch line holding member 4 has a hollow branch line holding portion 21 formed at the center, and the branch line holding portion 21 has a branch line holding hole. 22 is formed, and at the entrance of the holding hole dividing groove 23, a branch line receiving port 24 which spreads out in a V-shape is formed. In this configuration, an escape space 25 is formed so as not to hinder the push rivet 2 as shown in FIGS.
0, and are fixed at regular intervals in the guard main body 2 using the rivet holes 7, 7a. Also in the case of the branch line holding body 4, the direction between the holding hole split groove 23 and the branch line receiving port 24 is angled, and a part of the branch line receiving port 24 matches the split groove 3 of the guard body 2. However, the holding hole split groove 23 faces in the same direction as the cylindrical portion split groove 16 of the cap 5 described above, and does not match the direction of the split groove 3 as can be seen in FIG. Reference numeral 26 denotes branch line holding projections projecting at 90 ° intervals in the branch line holding holes 22 of the branch line holding body 4 and the branch line holding tube 13 of the cap 5. The protrusions 26a on both sides of the groove 23 are formed at an acute angle so that the branch line 101 does not easily come off. It should be noted that the branch line holding projections 26 and 26a correspond to FIGS. 13A and 13B and FIG.
As shown in FIGS. 13A and 13B, the tongue piece 27 having flexibility has the same size as that of FIGS.
The branch line 101 can be flexibly held even when the branch line 101 has a small diameter as shown in FIG. 14 or when the branch line 101 has a large diameter as shown in FIGS. For this reason, if the dimensions of the holding projections 26 and 26a and the branch line 101 do not match, the guard main body 2 may be over-tightened when closed, or if the branch line 101 is thin, play may occur. Also, as shown in FIGS. 15A to 15C, if the fold 27 a is formed upward on the tongue piece 27, when the guard 1 tries to rise along the branch line 101, the fold 27 a 2
7a stops sliding between the branch lines 101 and prevents the guard 1 from shifting upward. Split groove 3 and branch line holder 4 of guard body 1
The structure and operation of the push rivet for fixing the cap 5 will be described in detail with reference to FIGS. Split groove 3
The fastener 6 protrudes the rivet shafts 28 and 29 from the synthetic resin elongated oval base 27, and the rivet shafts 28 and 29 are split into two from the tip side as shown in FIG. Riveting grooves 30 and 31 are cut out, and pin holes 32 penetrating from the base 27 side into the rivet shafts 28 and 29 to form narrow cavities 39 and 40 (see FIG. 16) in the middle. 33 and projections 41 and 42 are formed. The fastener 6 further includes the pin holes 32,
19 and 2, the rivet shafts 28 and 29 are bifurcated by the action of the rivet split grooves 30 and 31.
No. 0 is attached, a flange 43b is formed on the head of the push pin 43, and an engagement groove 44 is formed in the longitudinal direction of the pin shaft 43a except for the tip side. , A pin shaft 4 in the pin holes 32, 33.
When the tip side of 3a is slightly pushed in, the protrusion 41,
The tip 44a of the engagement groove 44 is engaged with the
It does not easily fall off from 2,33. Of course, in this state, the rivet shafts 28 and 29 do not open.
FIG. 21 shows a single push rivet used to fix the branch line holder 4 and the cap 5 to the guard main body 2, and is structurally the same as the double fastener 6. Next, the operation of the push rivet will be described with reference to the single mold of FIG. 21. First, when the tip of the push pin 43 is inserted into the pin hole 32 as shown in FIG. Tip 4
4a. When the push pin 43 is further pushed into the pin hole 32 from this state, the pin shaft 4 of the push pin 43
The tip of 3a hits the narrow cavity 39, and then the push pin 4
When the rivet shaft 3 is pushed down to the root, the rivet shaft 28 is opened in a forked manner as shown in FIG. 22 (B), and cannot be pulled out from the rivet holes 7, 7a or 8, 8a. In the fastener 6 for fixing the split groove 3 of the guard body 2, the other rivet shaft 29 is inserted into the rivet hole 8a, and the push pin 43 is similarly connected to the pin hole 3
3 to open the pin shaft 29 in a bifurcated manner,
It is fixed in the rivet hole 8a. As a result, the split groove 3 of the guard main body 2 does not open. When removing the push rivet 20 (the fastener 6), the flange 43b of the push pin 43 is gripped with a tool or the like, and when the push pin 43 is pulled out, the pin shaft 43a escapes from the narrow cavity 39 or 40, and the rivet shaft 28 Or 29 is closed by elastic action. At this time,
Push pin 43 is not forcibly pulled out, and protrusion 41 is engaged with engagement groove 4.
By keeping the state related to the front end 44a of the push pin 43, it is possible to prevent the push pin 43 from dropping or being lost. It is to be noted that the prevention of the push pin 43 from coming off is particularly effective in the setup stage in which the guard 1 is mounted on the branch line 101. FIGS. 23 (A) and 23 (B) show a cover which is used by being put on the cap 5. This cover 50 is put on the cap 5 and is provided with the top plate split groove 15, the radius split groove 18, the branch line passage. This is to prevent rainwater and dust from entering the inside from the hole 12 to prevent the branch line 101 from deteriorating. The fitting portion 51 fits into the branch line through hole 12 of the cap 5, and the fitting portion 51.
A cover side branch line through hole 52 is formed at the center of the cover side, and an upward cover side tongue piece 53 is formed in the cover side branch line through hole 52. In FIGS. 23A and 23B, reference numeral 54 denotes a cover mounting slit. FIGS. 24 (A) and 24 (B) show the skirt split groove 14, the top plate split groove 15, and the radius split groove 18 of the cap 5.
FIG. 5 is an explanatory view of a waterproof member 60 that is fitted into the through hole 12 to prevent rainwater and dust from entering. The waterproof member 60 includes a fitting portion 61 that fits into the hem split groove 14 and the top plate split groove 15 of the cap 5, and a fitting portion 62 that fits into the branch line through hole 12.
And a fitting portion 63 fitted into the radius dividing groove 18.
In the center of the fitting portion 62, a cover side branch line through hole 64 is provided.
And a cover side tongue piece 65 facing upward is formed in the cover side branch line through hole 64. FIG.
In FIGS. 7A and 7B, reference numeral 66 denotes a waterproof member mounting slit. The branch guard according to the present invention is constructed as described above and has the following effects. 1. Since the position direction of the split groove of the cap and the branch line holding member is displaced from the position of the split groove of the guard body, the guard does not come off only by pressing from one side. Therefore, even if an obstacle is received by a car or the like, the guard does not separate from the branch line or does not adjust as in the related art. On the other hand, when mounting on a branch line, the cap and the branch line holding member are half-opened together when opened at the split groove portion of the guard body as in the conventional case, so that mounting can be easily performed as in the conventional case. 2. Since the guard body is simply fastened with the push rivet, the split groove, the branch line holding body, and the cap are easily fixed and cannot be detached once installed. As a result, it is also effective in preventing mischief and the like. 3. A projection is formed in the pin hole of the rivet shaft, and this projection is engaged with the engagement groove provided on the push pin side, so that the push pin does not drop out or is lost during transportation or on-site work. . 4. When the branch line holding projection is formed in the cap and the branch line holding hole in the branch line holding body, the branch lines are hardly detached even if the split groove is slightly opened even if the split groove is slightly opened. 5. By forming a flexible tongue in the cap and the branch holding hole in the branch holding body, and holding the branch with the tongue, the branch can be reliably held regardless of the thickness of the branch. As a result, there is no need to separately prepare caps and branch line holders having different specifications according to the thickness of the branch line, and thus it is possible to reduce the manufacturing cost. 6. By forming a fold on the support wire support and the tongue of the cap to prevent the guard from rising, the guard does not shift upward. 7. By attaching the cap cover or the waterproof member to the cover, rainwater and dust do not enter the cover. As a result, the protection of the branch line is thorough.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing a state in which a branch guard according to the present invention is attached to a branch of a utility pole. FIG. 2 is an explanatory view of a state in which a branch line guard is viewed from a split groove side. FIG. 3 is a sectional view taken along line AA ′. FIG. 4 is a sectional view taken along line BB ′. FIG. 5 is an explanatory view of a state where the guard body is viewed from the side. FIG. 6 is an explanatory diagram of a state in which the guard body is viewed from the split groove side. FIG. 7 is a perspective view of a cap. FIG. 8 is an explanatory diagram of a state in which the cap is viewed from a skirt split groove side. FIG. 9 is a side view of the cap. FIG. 10 is a bottom view of the cap. FIG. 11 is a sectional view taken along line CC ′. FIG. 12A is a plan view of a branch line holder. (B) is a side view of the branch line holder. FIG. 13A is a plan view of a branch line holding body, and is an explanatory view of a state where a small-diameter branch line is held. (B) is a sectional view taken along line DD ′. FIG. 14A is a plan view of a support holder, and is an explanatory view of a state where a large-diameter branch line is held. (B) is a sectional view taken along line EE '. 15A and 15B are explanatory diagrams of an example in which a fold is formed on a tongue piece.
(C) is an enlarged view of a fold. FIG. 16 is a plan view of the fastener. FIG. 17 is a front view of the fastener. FIG. 18 is a front view of the fastener viewed from the rivet axis direction. FIG. 19 is an explanatory diagram of a push pin. FIG. 20 is a front view of the push pin as viewed from the pin shaft side. FIG. 21 is a sectional view taken along line FF ′ of the rivet. FIG. 22A is an explanatory view showing a state in which the tip of a push pin is slightly inserted into a rivet. (B) is an explanatory view of a state in which the push pin is pushed in to open the rivet shaft in a bifurcated manner. FIG. 23A is a plan view of a cap cover. (B) is a side view of the cap cover. FIG. 24A is a plan view of a waterproof member. (B) is a side view of the waterproof member. [Description of Signs] 1 Guard 2 Guard body 3 Split groove 4 Branch line holder 5 Cap 6 Push rivet type fasteners 7, 7a, 8, 8a Rivet hole 9 Cut 10 Hem portion 11 Top plate portion 12 Branch line through hole 13 Branch line holding Cylinder 14 Bottom split groove 15 Top plate split groove 16 Tube split groove 17 Folded portion 18 Radial split groove 19 Annular groove 20 Push rivet 21 Branch line holding portion 22 Branch line holding hole 23 Holding hole split groove 24 Branch line receiving port 25 Escape Space 26 Branch line holding projection 27 Tongue piece 28, 29 Rivet shaft 30, 31 Rivet split groove 32, 33 Pin hole 39, 40 Narrow cavity 41, 42 Projection 43 Push pin 44 Engagement groove 50 Cap cover 60 Waterproof member

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-86121 (JP, A) JP-A-11-13311 (JP, A) JP-A-7-139223 (JP, A) JP-A-10-108 266630 (JP, A) Japanese Utility Model Hei 4-8670 (JP, U) Japanese Utility Model Utility Model 61-80959 (JP, U) Japanese Utility Model Utility Model Utility Model 60-146142 (JP, U) (58) Field surveyed (Int. ⁷ , DB name) H02G 7/00 E04H 12/20

Claims (1)

(57) [Claim 1] The cylindrical guard main body has one split groove formed in the longitudinal direction and a branch line having a branch line holding hole at the center in the guard main body. The holder is fixed ,
Wherein the upper end of the guard body cap is the crown, the key point of the split groove of the guard main body, a push rivet fasteners to prevent open this split groove is detachably attached, in the branch line holder In order to guide and insert a branch line into the branch line holding hole, a branch line receiving port is formed in a part of the outer peripheral surface, and a branch line insertion groove following the branch line receiving port has an orientation with respect to the branch line receiving port. It has been changed, and the branch line receiving port is partially opposed to the split groove on the guard body side.
A skirt split groove is formed in the skirt of the cap in the vertical direction, and the top plate is bent on the way to a branch line through hole formed at the center of the top plate following the skirt split groove. The top plate parting groove is formed, and further, on the top plate part of the cap, a radius dividing groove is formed from the branch line holding hole on the opposite side of the top plate parting groove, and the hem part dividing groove is formed in the guard body. The cap and the branch line holder are fixed to the guard main body with push rivets .
And the branch line holding hole of the branch line holding body and the branch line holding of the cap
Inside the cylinder, it was divided into a plurality and formed folds on the lower surface
The elastic branch line holding tongue is formed toward the center
Branch line guard characterized by the following .