JP3133909B2 - Sign removal equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sign attaching / detaching apparatus, and more particularly to a sign attaching / detaching apparatus for attaching a sign to an aerial cable installed between ground structures.

[0002]

2. Description of the Related Art Communication cables (outdoor lines) laid outdoors such as telephone lines are generally laid directly between ground structures such as telephone poles or via tow ropes, and are used for houses and buildings. Connected to the outer wall. In such a case, the communication cable and the tow rope are often installed across the road or as an overhead cable while avoiding obstacles.

[0003] In such a case, a sign such as a caution flag is sometimes placed on the overhead cable in order to notify a third party that the overhead cable is installed. The installation place of this sign was not only in the vicinity of the electric pole or the like, but also in some cases, for example, installed on an overhead cable or the like between the electric poles.

When a sign is installed on an aerial cable between telephone poles as described above, there is no tool or device that can install the sign directly on the aerial cable from the ground. Operated the aerial work vehicle to move to the position of the cable, and installed signs on the overhead cable using mounting members such as wires and rings.

[0005]

However, as described above, there has been no conventional tool or device capable of directly installing a sign on a cable from the ground, so that there have been the following problems.

(1) Even if the worker determines that a sign is necessary at the time of patrol inspection of the overhead cable, if there is no aerial work vehicle, the worker once returns to work and has an aerial work vehicle and an aerial work vehicle. It takes time and money to install the sign after returning to the site with the qualified pilot and starting to install the sign.

(2) When a sign is installed on a cable installed in a narrow alley or the like, there is a problem that the traffic is hindered by the stop of an aerial work vehicle, and it is necessary to arrange traffic control workers. It costs money to be there.

Therefore, the present invention solves the above-mentioned conventional problems, and even when there is no aerial work vehicle, when an inspector understands the necessity of installing a sign on an overhead cable, the overhead cable is attached to the overhead cable from the ground. It is an object of the present invention to provide a marker attaching / detaching device capable of easily setting a marker.

[0009]

According to another aspect of the present invention, there is provided a marker attaching / detaching device for attaching / detaching a marker to / from an overhead cable, wherein the marker is attached via a connecting ring. A sign attachment, and an operating tool for attaching and detaching the sign attachment to and from the overhead cable, wherein the sign attachment is attached to the overhead cable, and is located on the opposite side of the attachment, and is pressed. A grip portion that opens the mounting portion when it is pressed, and a spring that is located between the mounting portion and the gripping portion and that always holds the mounting portion in a closed state. A hollow temporary fixing portion that can be temporarily fixed and attached in a state where the grip portion of the tool is pressed, and a fixing portion that is located on the opposite side of the temporary fixing portion and detachably attaches the operating tool to the operation rod. That It is characterized.

[0010] The operation tool of the marker mounting tool may be provided with a hook-like portion capable of pulling the connecting ring downward.

[0011] In addition, a locking hole is provided in a grip portion of the marker mounting tool, the operating tool is formed of a cylindrical member as a whole, and the temporary fixing portion has a rectangular horizontal cross section. The marker fitting may be attached to the temporary fixing portion by protruding a pin that fits into the locking hole of the portion from the inner wall portion of the temporary fixing portion.

[0012]

According to the sign attachment / detachment device of the present invention, the fixing portion of the operating tool is attached to the tip of the predetermined operating rod, and the marker attaching tool having the desired sign attached to the hollow temporary fixing portion of the operating tool. If the sign is attached in a state where the part is pressed, the sign attachment with the sign attached via the connecting ring can be temporarily attached to the distal end of the operating rod with the attachment part opened. Therefore, the worker stretches the operating rod, hooks the mounting part of the marker mounting tool on the overhead cable, and removes the temporary fixing of the marker mounting tool by moving the distal end of the operating rod in this state. A desired sign can be attached via the attachment. When removing the sign, the dowel or an operating tool provided with a hook-shaped portion that engages with the connecting ring of the sign attaching tool is fixed to the distal end of the operating rod, and is attached to the connecting ring of the sign attaching tool. Dodge bar tip,
Alternatively, the sign attachment may be detached from the overhead cable by hooking the hook-shaped portion of the operation tool and pulling it down from the ground to pull it down. As a result, the operator can easily and reliably remove the sign from the overhead cable from the ground side without using an aerial work vehicle.

[0013] It is to be noted that a locking hole is provided in the grip portion of the sign mounting tool, and a pin is provided in the temporary fixing portion of the operation tool of the marking mounting tool to be fitted in the locking hole of the grip portion of the marking mounting tool. In other words, the attachment is securely locked in a state where the attachment is attached to the operating tool, and the attachment does not drop during the operation of attaching the sign.

[0014]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows a sign attaching / detaching apparatus 1 according to an embodiment of the present invention.
FIG. 2 is an assembled perspective view showing the entire configuration of the apparatus. Sign removal device 1
Numeral 0 is used for attaching and detaching the sign 2 to and from the overhead cable 1 erected while securing the ground clearance between the above-mentioned structures. A sign fitting 4 to which the sign 2 is attached via a connecting ring 3;
And an operating tool 5 which is attached to and detached from the operating tool.

The sign attachment 4 is provided with an attachment portion 41 to be attached to the overhead cable 1, a grip portion 42 located on the opposite side of the attachment portion 41 and opening the attachment portion 41 when pressed, and an attachment portion 41. And a spring 42 that is located between the grip portion 42 and the holding portion 42 in a closed state when the grip portion 42 is not pressed. In this embodiment, the marker 2 is connected via a connecting ring 3 loosely fitted to a pin 21 rotatably protruded from the tip of the marker 2.
It is attached to the sign attachment 4.

The operating tool 5 has a hollow cylindrical shape in this embodiment, and one end of the operating tool 5 has a grip portion 4 of the marker mounting tool 4.
A temporary fixing portion 51 is formed, which can be temporarily fixed and attached in a state where the second pressing member 2 is pressed, and the opposite side of the temporary fixing portion 51 is fixed to detachably attach the operating tool 5 to a predetermined operating rod 6. It is a part 52. The operating rod 6 is a fixed part 5
2, a set screw 5 provided on the fixing portion 52.
By 0, it does not come off from the operation tool 5.

The operator attaches the marker mounting member 4 to the temporary fixing portion 51 by compressing the grip portion 42 by hand and reducing the distance between the grip portions 42 to be smaller than the inner diameter of the temporary fixing portion 51 of the operating tool 5. By inserting, it can be attached to the operation tool 5.

Here, the configuration of the marker attachment 4 will be described in more detail. FIG. 2 is an exploded perspective view showing in detail the configuration of the marker attachment 4 in the marker attaching / detaching device 10 of FIG. In this embodiment, the marker mounting tool 4 engages the first mounting member 4A and the second mounting member 4B, each of which has a substantially “U” shape, with the first mounting member 4A and the second mounting member 4B facing each other so as to open outward. 43 is formed in a shape of a washing pinch.

First mounting member 4A, second mounting member 4B
In both cases, the mounting portion 41 is provided with semicircular concave portions 41A and 41B. The space formed by combining these recesses 41A and 41B is formed so as to be substantially equal to or slightly larger than the cross section of the aerial cable 1 on which the marker attachment 4 is installed. The bent portion of the first mounting member 4A is provided with an engaging projection 4C, and the bent portion of the second mounting member 4B is provided with an engaging recess 4D for receiving the engaging projection 4C. Further, on the side surfaces of the first and second attachment members 4A and 4B, a slit 44 for inserting the spring 43 and a concave portion 45 for positioning the tip of the spring 43 are provided. Further, the holding portions 42 of the first and second mounting members 4A and 4B of this embodiment are provided with locking holes 46 for receiving pins 54 described later. In the sign mounting tool 4 of this embodiment, the engaging projection 4C of the first mounting member 4A is connected to the engaging recess 4 of the second mounting member 4B.
D, the spring 43 is inserted through the slit 44, and the tip is positioned in the concave portion 45, thereby assembling.

In this embodiment, the connecting ring 3 is inserted through the spring 43 of the marker mounting device 4 thus assembled. In this embodiment, the connecting ring 3 has a small circle portion 3A and a large circle portion 3B. The small circle portion 3A is hooked so as to intersect with the spring 43, and the large circle portion 3B projects from the tip of the sign 2. It is loosely fitted to the pin 21 provided.

The marker 2 is formed in a triangular shape in order to minimize the number of supporting points, with the apex part being the upper part and the base part being the lower part. And, in order to prevent bending due to climate, a fold is provided and reinforced.
In addition, the connecting ring (tie wrap) 3 for attaching the sign 2 to the sign attaching tool 4 needs to have a diameter large enough to allow the tip of a later-described removing member to be inserted when the sign 2 is removed later. is there.

FIGS. 3A and 3B show a detailed structure of the operating tool 5 in the marker attaching / detaching apparatus 10 of FIG. 1, wherein FIG. 3A is a local plan view of the temporary fixing portion 51 of the operating tool 5, and FIG. FIG. 5 is a side view of the operating tool 5 attached to the rod 6.

In this embodiment, the operating tool 5 has a cylindrical shape as a whole, and the temporary fixing portion 51 on the tip end side is formed in a square horizontal cross section as shown in FIG. The horizontal length X of the rectangular temporary fixing portion 51 may be formed to be, for example, about 38 mm, and the vertical length Y may be formed to be, for example, about 25 mm. In this embodiment, a pin 54 is provided on the side wall of the temporary fixing portion 51 so as to protrude from the inner wall portion 5A. The pin 54 is adapted to engage with a locking hole 46 provided in the grip portion 42 of the marker mounting tool 4 in FIG. This is to prevent the marker mounting tool 4 from being easily detached from the temporary fixing portion 51 by the pins 54 when the marker mounting device 4 is inserted into the portion 51.

An operating rod 6 is inserted into the lower end of the operating tool 5, and the inserted operating rod 6 is fixed to a fixing portion 52 of the operating tool 5 by a set screw 50. It has become.

Further, the operating tool 5 of this embodiment is provided with a hook-shaped portion 53 for removing the marker mounting tool 4 installed on the overhead cable 1. The hook 53 includes a hook 53A, a leaf spring 53B, and a screw 53C. The hook 53A is provided with a screw 53 on the outer surface near the temporary fixing portion 51 of the operating tool 5 such that the hook portion of the hook faces downward.
C attached. The leaf spring 53B is fastened to the mounting portion of the hook 53A by a screw 53C, and the distal end of the leaf spring 53B contacts the inside of the distal end of the hook 53A, and the closed space 53D is formed by the hook 53A and the leaf spring 53B.
Is formed. The leaf spring 53B is provided in the closed space 53D.
It is bent to the side to open the closed space 53D.

FIG. 4 shows the operation of attaching the marker 2 by the marker attaching / detaching device 10 configured as described above. In FIG. 4, the illustration of the marker 2 and the connecting ring 3 is omitted.

As shown in FIG. 4 (a), the marker mounting device 4 is mounted in the temporary fixing portion 51 of the operating tool 5 with the grip portion 42 being pressed. In this state, since the grip portion 42 is locked by the pin 54, the marker mounting tool 4 does not easily come off the operating tool 5. In this state, since the grip portion 42 is pressed, the attachment portion 41 of the sign attachment 4 is opened with a width equal to or larger than the diameter of the overhead cable 1.

The operator brings the marker mounting tool 4 attached to the temporary fixing portion 51 of the operating tool 5 close to the overhead cable 1 and hooks the overhead cable 1 in the concave portion 41B of the mounting section 41. In this state, the operating tool 5 Operation rod attached (not shown)
By slightly tilting the marker attachment side to the side where the pin 54 is not provided, as shown in FIG. 4 (b), the grip portion 41 of the marker attachment device 4 is released from the engagement of the pin 50, and easily detaches from the temporary fixing portion 51. As a result, the interval between the grip portions 41 is widened and the attachment portion 41 is closed, and the sign attachment 4 is installed on the overhead cable 1.

When the marker 2 attached to the overhead cable 1 is removed together with the marker fixture 4, the operation tool 5
Is hooked on the connection ring 3 and the connection ring 3 is pulled downward. At the time of removal, the connecting ring 3 is held in the closed space 53D of the hook 53 described with reference to FIG. 3 (b). .

FIG. 5 is a side view showing the structure of another embodiment of the operating tool 5 of the present invention. The same components as those of the operating tool 5 of the embodiment described with reference to FIG. The description is omitted. The operating tool 5 'of this embodiment is for attaching to a dodge bar provided with a hook for locking a wire or a cable at a distal end portion. In general, a dodge bar is used which can be extended and contracted.

The operating tool 5 'in this embodiment is different from the operating tool 5 in the above-mentioned embodiment in that a slit 55 for receiving a hook provided at the tip of a dowel is provided instead of the set screw 50. Point and the slit 55
This is a point that the hook-and-loop fastener 56 is provided around the fixing portion 52 provided with.

FIG. 6A is an explanatory view for explaining a state in which the dodge bar 7 is attached to the operating tool 5 'provided with the slit 55 as shown in FIG. A hook 71 provided at the tip of the dodge bar 7 is inserted into the slit 55, and the operating tool 5 '
The operating tool 5 'is fixed to the dowel 7 inserted through the fixing portion 52 by a fixing band 56 such as a hook-and-loop fastener.

FIG. 6B is a cross-sectional view illustrating a state in which the marker mounting tool 4 is temporarily fixed to the temporary fixing portion 51 of the operating tool 5 ′ mounted on the dodging bar 7 as shown in FIG. 6A. It is. FIG. 6C is a partially enlarged cross-sectional view of a portion indicated by reference numeral Z in FIG. 6B, and shows a state in which the grip portion 41 of the marker mounting tool 4 is temporarily fixed by the pin 54.

FIG. 7 shows an operation of attaching the sign 2 to the overhead cable 1 using the sign attaching / detaching device 10 shown in FIG. The dowel bar 7 shown in FIG. 6 is extended as shown in FIG. 7 (a), and the marker mounting member 4 temporarily fixed to the operating tool 5 'fixed to the tip of the dowel bar 7 is attached to its mounting portion. 41 is hooked on the overhead cable 1, and the dodging bar 7 is slightly tilted from that position as shown in FIG. 7 (b). Then, FIG.
As described in detail in (a) and (b), the marker mounting tool 4 comes off the temporary fixing portion 51 of the operating tool 5 ′, and the marker 2 is mounted on the overhead cable 1.

As described above, by using the sign attaching / detaching device 10 of the present invention, the sign 2 can be easily attached to the overhead cable 1 by an operator from the ground.

The marker 2 attached to the overhead cable 1 is attached to the hook 53A of the hook 53 on the side of the operating tool 5, 5 'attached to the tip of the operating rod 6 or dodging rod 7. The hook 2 can be easily detached from the overhead cable 1 by hooking it on the connecting ring 3 connecting the sign fitting 4 and the sign fitting 4 and pulling it from the ground side. Also, the hook 71 at the tip of the dodging bar 7 can be used without using the hook 53A of the hook 53 on the side surface of the operating tool 5, 5 '.
The hook 2 can be easily removed from the overhead cable 1 by hooking it on the connecting ring 3 connecting the sign 2 and the sign attachment 4 and pulling it from the ground side.

In addition, the operating tool 5, constructed as described above,
When the sign 2 is removed from the overhead cable 1 using 5 ', it is necessary to prevent the operating tools 5, 5' from coming off the operating rod 6 or the dodging rod 7. At this time, set screw 5
0 and the fixed ring 56, and key rings 5 and 5 '
By pulling the operating rod 6 and the cord simultaneously from the ground side, or by simultaneously pulling the shrinking string of the dodge bar 7, thereby pulling the operating tools 5, 5 'upward. It is possible to remove the sign 2 from the overhead cable 1 while reducing the distance.

Furthermore, if only the connecting ring 3 is attached to the sign attachment 4, the sign attachment 4 becomes a fixing tool. For example, when a relatively lightweight overhead cable hangs from the suspension wire. By using this fixture to hold the suspension wire and the overhead cable together, it can be used for emergency repair of hanging of the overhead cable.

As described above, the use of the sign attaching / detaching device 10 of the present invention makes it possible to easily attach the sign 2 to the overhead cable 1. For example, (1) during the on-site inspection, When the construction according to (1) is being carried out, it is possible to easily attach a sign to call attention to the overhead cable and prevent the overhead cable from being damaged. (2) When the telephone line leading from the middle of the overhead cable to the house hangs down on the main line side, the telephone line is retracted into the mounting portion 41 of the sign fitting 4 to accommodate the telephone line and to be supported by the overhead cable side. In addition, the slack of the telephone line can be eliminated.

(3) When the overhead cable is detached from the suspension line and hangs down, and the ground height is low, the overhead cable is accommodated in the mounting portion 41 of the sign fitting 4 and is supported by the suspension line. Thereby, the slack of the overhead cable can be eliminated.

Can be used.

[0043]

As described above, by using the sign attaching / detaching apparatus of the present invention, the sign can be easily attached to the overhead cable to which the worker wants to attach the sign without using the aerial work vehicle, or the sign can be attached. Can be easily removed from the overhead cable, shortening the working time, and ensuring the safety of attaching and detaching the overhead cable for the sign, as well as the safety of equipment and people, quickly and economically. This has the effect of being able to be performed in a targeted manner.

Furthermore, since the operating tool is configured to be detachable from the operating rod, it is excellent in portability, and if it is carried around for patrol work by an operator, it is possible to install a sign at the same time as inspection.

[Brief description of the drawings]

FIG. 1 is an assembled perspective view showing an entire configuration of an embodiment of a sign attaching / detaching apparatus according to the present invention.

FIG. 2 is an exploded perspective view showing in detail a configuration of a marker attaching tool in the marker attaching / detaching device of FIG.

3A and 3B show a detailed configuration of an operation tool in the marker attaching / detaching apparatus of FIG. 1, wherein FIG. 3A is a local plan view of the operation tool, and FIG.
FIG. 3 is a side view of the marker attaching / detaching device attached to the operating rod.

FIGS. 4A and 4B show an operation of attaching a sign by the sign attaching / detaching device shown in FIG. 1, wherein FIG. FIG. 4B is a partially cutaway side view for explaining a state in which the marker mounting tool is removed from the distal end portion of the operation tool and attached to the cable.

FIG. 5 is a side view showing the configuration of another embodiment of the operating tool of the present invention.

6 (a) is an explanatory view illustrating a state where a dodge bar is attached to the operating tool of FIG. 5, and FIG. 6 (b) is a cross-sectional view illustrating a state where a marker mounting tool is temporarily fixed to the operating tool of FIG. 5 (a). , (C) is the Z of (b)
It is a partial expanded sectional view of the part shown by.

7A and 7B are diagrams illustrating a sign attaching operation performed by the sign attaching / detaching device illustrated in FIG. 6, and FIG. 7A is a side view illustrating a manner in which a sign attaching member attached to a tip portion of an operating tool is attached to an overhead cable. (B) is a diagram for explaining a state in which the marker attaching tool is removed from the distal end portion of the operating tool and attached to the cable.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 overhead cable 2 marker 3 connecting ring 4 marker mounting tool 5, 5 ′ operating tool 6 operating rod 7 dowel rod 10 marker attaching / detaching device according to one embodiment of the present invention 21 pin 41 mounting section 42 grip section 43 spring 46 locking hole 50 Set screw 51 Temporarily fixing part 51A Inner wall part 52 Fixing part 53 Hook 53A Hook 53B Leaf spring 54 Pin 55 Slit 56 Fixed band 71 Hook

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-48-46893 (JP, A) JP-A 63-14283 (JP, U) JP-A 62-129585 (JP, U) JP-A 55-468 169013 (JP, U) Actually open 1979-22685 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 1/00 H01B 7/36 H02G 7/00

Claims (3)

(57) [Claims] 1. A sign attaching / detaching device for attaching / detaching a sign to / from an overhead cable, a sign attaching tool to which the sign is attached via a connecting ring, and an operation for attaching / detaching the sign attaching / detaching to / from the overhead cable. The sign attachment is attached to the overhead cable, a gripper located on the opposite side of the attachment, and opening the attachment when pressed, and the attachment and gripper And a spring that is located in the middle of the marker and that always keeps the mounting portion closed.The operating tool can be temporarily fixed and mounted while pressing the grip portion of the marker mounting tool. A marking attaching / detaching device, comprising: a hollow temporary fixing portion; and a fixing portion which is located on the opposite side of the temporary fixing portion and detachably attaches an operating tool to an operation rod. 2. The marker attaching / detaching apparatus according to claim 1, wherein a hook-like portion capable of pulling the connecting ring downward is provided on the operating tool of the marker attaching tool. 3. A holding hole is provided in a grip portion of the marker mounting tool, and the operation tool is entirely formed of a cylindrical member, and the temporary fixing portion has a rectangular horizontal cross section. 3. The pin according to claim 1, wherein a pin that fits into a locking hole provided in the grip portion is provided so as to protrude from an inner wall portion of the temporary fixing portion. 4. Sign removal equipment.