JPH02276408A - Obstacle climbing device for laying overhead cables - Google Patents

Abstract

PURPOSE:To make it possible to surmount an obstacle by axially jointing a fastener to a towrope to which a cable to be stringed is installed to a rotor having an outside circumference where an opening to take in a lengthy obstacle is provided, and by jointing a rotating supporter to fit into the rotor to the supporting column. CONSTITUTION:A towrope fastener 3 to an end of which a rotor 1 and a towrope 6 are secured is jointed at an axis so that the position of the towrope 6 can be kept in a definite direction even in the rotation of the rotor 1. A lengthy obstacle 8 is taken in with an opening 5 of the rotor 1 in the horizontal direction. The obstacle 8 is then pushed directly into the opening 5 so that the rotor 1 can rotate towards a rotor supporter 2 i.e., counterclockwise to move the whole position of an obstacle clearing device and the rotor 1 is rotated about half a revolution. Unillustrated cables jointed to the towrope 6 clearing the obstacle 8 can thereby be extended by the towrope 6.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a tool used in an overhead cable laying method, and in particular, the present invention relates to a tool used in an overhead cable laying method. This article relates to a tool for overcoming obstacles that safely and reliably passes through obstacles.

[Conventional technology]

Conventionally, in order to lay cables, wires, etc. over the air, as shown in FIG. 9a, for example, a utility pole 92 is constructed,
Generally, the cable 91 is fixed to the side surface of 2 with a fixing fitting 93. For this purpose, for example, as shown in FIG. 9, the tip of the cable 91 or a towline 95 connected to the cable 91, in this example a towline 95', is inserted from the ground into a pulley 94 temporarily fixed to a utility pole 92. After inserting the cable 91 using a tool 96 or the like and extending the cable 91 over one section, it is finally fixed with a fixing metal fitting.

[Problem to be solved by the invention]

When using the conventional overhead cable laying method, there is no problem if there are no obstacles below the location where the cable is to be laid, but in view of recent usage conditions, cases where there are no obstacles have become extremely rare. ing. For this reason, one method is to roll up one end of a towline and throw it to jump over the obstacle, or a worker uses a bucket truck to climb to a high place where the obstacle is and manually have the worker jump over the obstacle. The problem is that the workability is extremely poor.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide an obstacle-climbing tool that can be used to overcome obstacles safely and conveniently from the ground.

[Means to solve the problem]

The present invention is an obstacle-climbing device that achieves the above-mentioned object, and includes a rotary body that is pivotally connected to a towline fastener for fixing a towline to which an overhead cable is attached; The rotating body includes a rotating body support that supports the rotating body by fitting into the rotating body support in a concave and convex manner, and a column connected to the rotating body support, and the rotating body is fitted on the outer periphery of the rotating body support in a concave and convex manner. The elongated obstacle can be removed by rotating the rotary body, which is provided with an opening into which the elongated obstacle is inserted, and which has an interval shorter than the distance at which the elongated obstacle is brought into contact with the elongated obstacle. It is characterized by having a structure for avoiding objects and passing a tow rope to which the above-mentioned overhead cable is attached to the opposite side of the rotating body support.

Further, it is also effective that the rotating body has a structure in which the opening and the connecting point of the towline fastener that is pivotally connected to the rotating body are arranged to face each other with respect to the center of rotation of the rotating body. It is.

[Effect]

The obstacle overcoming device of the present invention has a structure in which the tow rope fastener is pivotally connected to the rotating body, so the position of the tow rope is maintained in a fixed direction even when the rotating body rotates, making it easy to take in obstacles. It is reliable, and the rotating body support is connected by a column, and the worker grasps the lower part of the column and lifts it to a desired height to perform the work safely. Examples will be described below based on the drawings.

〔Example〕

FIGS. 1a and 1b show a side sectional view and a front view of a main part of a first embodiment of the obstacle-surmounting tool of the present invention.

The rotary body 1 and the towline fastener 3, which fixes the towline 6 at one end, are connected by a pivot, and even when the rotary body 1 rotates, the position of the towline 6 is maintained in a constant direction.

The rotating body 1 and the rotating body support 2 have a convex-concave fitting connection structure, for example, in this embodiment, the fitting structure and connection structure is formed through rollers 7, and the structure is such that the rotating body support 2 will not come off once they are connected.

The rotary body support 2 is connected to a long column 4, and a worker can grasp the lower part of the column 4 and lift the rotation support 2 to a desired high position.

The rotating body 1 is provided with an opening 5 on its outer periphery, into which a long obstacle is inserted at a distance shorter than the distance at which the rotating body support 2 fits in a concave-convex manner and comes into contact with the rotating body support 2.

A method for getting over an obstacle using the obstacle getting over tool of this embodiment will be explained with reference to FIGS. 2a to 2C.

The opening 5 of the rotating body 1 is oriented horizontally and a long obstacle 8 is introduced (FIG. 2a).

Next, the rotating body 1 directly presses the obstacle 8 into the opening 5 so that it rotates toward the rotating body support 2, that is, in a counterclockwise direction, thereby moving the entire position of the obstacle climbing tool. (Fig. 2 b), by turning about half a turn,
The towline 6 overcomes the obstacle 8 (Fig. 2c) and the towline f
Cables (not shown) connected to A6 can be extended.

FIGS. 3a and 3b show structures of other embodiments of the rotating body according to the present invention, respectively. FIG. 3a shows a structure in which an opening 351 is formed at one location on the outer periphery of the rotating body 311, and the position where the towline fastener is pivotally connected is shifted from the center of rotation. The size of the opening 351 is determined by the size of the obstacle, but generally, even if the size of an imaginary obstacle is large, the cross-sectional diameter will not exceed 10 cmφ.
A diameter of about 20 cmφ is sufficient. The tow rope is
Since it is usually pulled from below horizontally, it is convenient to locate the opening on the opposite side of the direction in which the object is pulled.

In the embodiment shown in FIG. 3, a plurality of
In this embodiment, there are three openings 3521, 3522.35.
23, and in the case of this embodiment, it is assumed that the diameter of the target obstacle is relatively small. The rotating body 321 of this embodiment is effective when it is urgently necessary to overcome an obstacle.

It is more effective to make the rotating bodies 311 and 321 in FIGS. 3a and 3b removable so that they can be replaced as necessary.

FIG. 4 shows an example of climbing over an obstacle in the horizontal direction. In this example, the rotating body has the structure shown in the embodiment shown in FIG. 3a.

The obstacle overcoming device is connected to a rotary body 41 having an opening 45 to which a tow rope fastener 43 having a tow 1ii 146 connected to the end thereof is pivotally connected, and a convex-concave fit with the rotary body 41.
It consists of a rotating body support 42 supported by a column 44, and is mounted on a moving vehicle 47.

Obstacles, for example, other cables 48 that are overhead at a position perpendicular to the cable (not shown) connected to the puller In this case, it is necessary to proceed with the entire process of climbing over the bridge without changing the height H.In the rotary body 41 of this embodiment, the opening 45 is located at the entrance of the cable 48 of the obstacle shown in FIG. 4I. Regardless of the position, whether during the crossing shown in Figure 4 (■), or even after the crossing shown in Figure 4 (■), the crossing process must be carried out throughout the entire crossing process without changing the height H at all. I can do it.

FIG. 5 is an outline of essential parts showing a method for vertically surmounting an obstacle using the obstacle surmounting tool according to the present invention illustrated in FIG.

-C, as an example of climbing over a cable stretched horizontally as an obstacle 58 in the vertical direction, as shown in the procedure for climbing over an obstacle, if the obstacle is stretched in three strips in the vertical direction, This is a necessary process to overcome all three obstacles.

In FIG. 5, the obstacle overcoming device is connected to a rotary body 51 having an opening 55, to which a towline fastener 53 with a towline 56 connected to the end is pivotally connected, and a concave-convex fit with the rotary body 51. The rotating body support 52 is supported by a column 54.

The obstacle 58 shown in FIG. As shown in Figure 5 (■), the pull wI456 overcomes the obstacle 58.

The state of overcoming three vertically stretched obstacles by the procedure and process illustrated in FIG. 5 will be explained with reference to FIG.

FIG. 6 shows an obstacle crossing device 6 with a seine net 66 attached.
This is the state before 0 overcomes the three obstacles 681, 682, and 683. Figures 6 It, III, and IV show the state in which obstacles 681, 682, and 683 at the first, second, and third entrances have been successively overcome by the procedure and process shown in Figure 5, respectively. This is an example of a case in which an obstacle located outside the spatial area divided by the pillars 64 is brought into the spatial area and the obstacle is overcome.

Although the rotating body in each of the above embodiments has a rotating disk shape, the shape of the rotating body according to the present invention is not limited to the rotating disk shape.

FIGS. 7a and 7b are front and side views showing the main structure of a second embodiment of the obstacle climbing device of the present invention. Pillar 7
A ring 71 that partially forms an opening for taking in obstacles is used to hold a rotating body that fits in a concave-convex manner on a rotating body support 72 supported by a ring 71
This is an example configured with

A tow rope fastener 75 and a tow y476 are connected to the ring 71.

Further, in each of the embodiments described above, the rotating body is driven by pushing an obstacle directly into the opening of the rotating body. It is not limited to.

FIGS. 8a and 8b are front and side cross-sectional views of a third embodiment of the obstacle climbing device according to the present invention.

In this embodiment, a rotating body 81 which is pivotally connected to a towline fastener 83 having a towline 86 connected to the end thereof is attached to the tips of a pair of support arms 8751 and 8752 which are pivotally supported at one end of a support shaft 872. Foils 821 and 82 that are in rotational contact with the outer periphery of the rotating body 81
It has a structure that engages with a drive section 87 that incorporates a mechanism section having a mechanism section 2.

By operating the handle 874, the spindle 872 of the drive unit 87 rotates the rotating body 81 in the direction of the arrow as the wheels 821 and 822 rotate in the direction of the arrow. This is an example in which the robot is configured to climb over obstacles, and by operating a separately provided drive unit 87, the robot moves by itself in the process of taking in obstacles and getting over them. The configuration of this embodiment is suitable for use in overcoming weak obstacles.

〔Effect of the invention〕

As explained above, the device for overcoming obstacles for laying overhead cables of the present invention pivots the fastener of the towline to which the cable to be spanned is attached to the rotating body having a long obstacle intake opening on the outer periphery. , has a structure in which a rotating body support that engages with the rotating body in a convex-concave manner is connected to a column, so even when the rotating body rotates, the position of the towline is maintained in a fixed direction, making it easy and reliable to take in obstacles. This allows workers to safely climb over troublesome aerial obstacles, and allows workers to span long objects such as seine nets and cables to arbitrary heights from the ground.

Furthermore, since no other tools or power are basically required, operation and configuration are simple.

[Brief explanation of drawings]

Figures 1a and b are structural diagrams of the first embodiment of the obstacle-riding tool of the present invention, Figures 2a to c are explanatory diagrams of a method for getting over an obstacle using the obstacle-crossing tool of the present invention, and Figures 3a and b are Embodiment structural diagram of the rotating body, Fig. 4 is an explanatory diagram of overcoming an obstacle in the horizontal direction, Fig. 5 is an explanatory diagram of overcoming an obstacle in the vertical direction, Fig. 6 is an explanatory diagram of overcoming a plurality of obstacles, Fig. 7 a, b FIGS. 8a and 8b are structural diagrams of embodiments 2 and 3 of the obstacle climbing device of the present invention, respectively, and FIGS. 9a and 9b are explanatory diagrams of conventional cable overhead laying. 1.311.321.41.5181...Rotating body, 2
, '42.52.72...Rotating body support, 3.43.
53.75.83... Towline fastener, 4.44.54
．． 64.73,...post, 5.351.3521.3
522.3523.45.55...Opening, 6.46
．． 56.66.76.86.95... Seine net, 7...
・Koro, 8.58.61.682.683.98...
Obstacle, 48, ■... Cable, 47... Moving vehicle,
60... Obstacle overcoming device, 71... Ring, 828
22...Wheel, 87, Drive unit, 872...Spindle, 8
74...Handle, 8751.8752...Support arm, 92
...Telephone pole, 93...Fixing metal fittings, 4...Pulley, 96
...Punching crotch tool patent applicant Sumitomo Electric Industries Co., Ltd. agent Patent attorney Tama Mushi Kugobe Yume procedural amendment (method) 1. Display of the case: 1999 Patent Application No. 97087 2, Title of the invention: Obstacle-surmounting device for laying overhead cables 3, Person making the amendment Relationship to the case Patent applicant Address: 4-5-33 Kitahama, Chuo-ku, Osaka Name (2
13) Tetsube Kawakami, Representative of Sumitomo Electric Industries, Ltd. 4, Agent Shipping Port July 25, 1999 6. Subject of amendment Drawing (Fig. 8) 7. Contents of amendment Fig. 8 has been deleted and Fig. 8 Figures a, b and F of the present invention! Figure 8: Lotus diagram of Example 3 of the tool for getting over harmful objects

Claims (2)

[Claims] (1) An obstacle-climbing device for overcoming long obstacles for laying overhead cables, which comprises: a rotary body pivotally connected with a tow-rope fastener for fixing a tow rope to which an overhead cable is attached; The rotating body includes a rotating body support that rotatably engages with the rotating body in a concave and convex manner to support the rotating body, and a support that is connected to the rotating body support, and the rotating body has an outer periphery. is provided with an opening into which the elongated obstacle is inserted, the distance being shorter than the distance at which the rotary body support fits and contacts the rotating body support in an uneven manner, and the elongated obstacle is inserted into the opening. An obstacle for laying an overhead cable, characterized in that it has a structure in which the elongated obstacle is avoided by rotating a rotating body, and the towline to which the aerial cable is attached is inserted through the opposite side of the rotating support. A tool for climbing over objects. (2) The rotating body has a structure in which the opening and a connection point of the towline fastener that is pivotally connected to the rotating body are arranged to face each other with respect to the rotation center of the rotating body. The obstacle climbing device for laying overhead cables according to claim 1, characterized in that: