KR101505795B1 - Apparatus for laying of cable - Google Patents

Abstract

A cable laying apparatus capable of easily laying a cable is disclosed. A cable laying apparatus according to an embodiment of the present invention is a device for laying cables by moving along a cable tray including a longitudinal member disposed parallel to each other and a plurality of transverse members connecting between the longitudinal members, And a pulling portion connected to the body portion and connected to the body portion for pulling the cable, wherein the variable arm has a transverse member attached to the end portion of the variable arm, When the variable arm has a length variable in the installation direction of the cable tray, the variable arm hanging portion passes through the transverse member, and the variable arm is supported by the opposite side of the cable tray The variable arm fastening portion is caught by the transverse member, and the body portion is caught by the cable It moved in the laying direction of the ray.

Description

{APPARATUS FOR LAYING OF CABLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cable laying apparatus, and more particularly, to a cable laying apparatus capable of easily laying a cable.

A cable tray (or a converter) is installed so that a cable (hereinafter referred to as "cable") is connected to each location where electric supply is required when a building is newly constructed or shrunk. A cable tray is a structure made of metal or non-combustible material for supporting cables. Several cables are laid on the cable tray in a bundled state.

In the case of ships, too many cables are laid on cable trays for power supply or inter-device connections. Cable installation works include installation of cable trays inside and outside the ship during the ship's construction and laying of multiple cables in the cable tray. At this time, the cable tray may be provided in multiple stages and may include a curved portion. Cables installed on ships vary in their type and size. Depending on the type of ship, cables may be installed several hundreds of thousands meters or more, and their weight may exceed tens of thousands of tons.

Thus, cable laying is an important part of ship construction. In conventional cable laying methods, a rope is connected to one end of a cable before a cable is laid, a rope is moved to a winch on a cable tray, a cable connected to the rope is indirectly wound by using a winch It was installed in a cable tray.

However, a separate work process was required to connect the rope to the winch, and thus the work time was increased. In addition, when a winch is used, there is a problem that a tension greater than an allowable range is applied to the cable or a frictional force acts between the cable and the cable, thereby damaging the cable. To solve this problem, a method of using a pusher has been proposed, but there is a problem that the space for installing the pusher is limited.

In addition, in the area requiring large power despite the winches and pushers, or in the narrow space where it is difficult to install such equipment, the operator had to manually install the cable.

However, the cable installation by the manual operation of the operator not only consumes manpower and cost but also causes the musculoskeletal diseases of the worker. In addition, there is a problem that it is difficult to work through a manual operation in a narrow space or a zone where a cable tray is installed in multiple stages.

Korean Patent Publication No. 2011-0019068 (disclosed on February 25, 2011)

An embodiment of the present invention is to provide a cable laying apparatus that can easily lay cables in a cable tray.

Also, it is intended to provide a cable laying apparatus that can simplify the work process and shorten the work time by deleting the work of connecting the rope before installing the cable.

In addition, it is intended to provide a cable installation device capable of preventing an operator from being injured by enabling an automatic apparatus.

According to one aspect of the present invention there is provided an apparatus for moving a cable along a cable tray comprising a longitudinal member disposed parallel to each other and a plurality of transverse members interconnecting the longitudinal member, A moving body portion; A variable arm connected to the body and having a variable length in a direction of installation of the cable tray; And a pulling portion connected to the body portion and pulling the cable, wherein a variable arm hanging portion for hanging the transverse member is provided at an end of the variable arm, and a rotating portion is provided at the variable arm hanging portion When the variable arm is variable in length in the direction of installation of the cable tray, the variable arm hanger passes the transverse member, and when the variable arm varies in length in a direction opposite to the installation direction of the cable tray, A cable installation device may be provided in which the female-hook portion is caught by the transverse member to move the body portion in the direction of installation of the cable tray.

And a guide portion connected to the body portion and guiding the body portion along the cable tray.

The guide part may be provided with a cable installation device which is a guide roller rolling motion along the longitudinal member.

The guide roller may be provided with a cable installation device including a side guide roller moving along an outer side surface of the longitudinal member and an upper guide roller moving along an upper bent portion of the longitudinal member.

The body portion or the guide portion may be provided with a cable installation device including a length varying portion so as to be applicable to the cable tray having a different width.

Wherein the guide portion includes a side guide roller that moves along an outer side surface or an inner side surface of the longitudinal member, and the length varying portion includes a cable laying device that provides an elastic force so that the side guide rollers can be brought into close contact with the longitudinal member Can be provided.

The variable arm includes: a variable arm fixing part connected to the body part; A variable arm variable portion supported by the variable arm fixing portion and being displaced in the installation direction of the cable tray; And a variable arm fastening portion rotatably connected to the variable arm varying portion, wherein the variable arm varying portion and the variable arm fastening portion are provided with a cable laying device whose rotation is restricted by a range exceeding a predetermined range have.

The cable installation device may be provided with an elastic member between the variable arm variable portion and the variable arm retaining portion to provide an elastic force to a position where the variable arm retaining portion can hang the transverse member.

The variable arm may be provided with a cable installation device which can be variable in length by using a cylinder device.

The cable installation apparatus may include a plurality of variable arms and two groups of variable arms that are alternately operated.

A group of the variable arms of the plurality of variable arms may be arranged to be advanced by a distance between the transverse members with respect to the variable arms of the other groups operating alternately.

The variable arm may be provided with a cable installation device including a sensor capable of recognizing the transverse member.

And a signal unit capable of transmitting a signal when the transverse member can not be recognized while the length of the variable arm is variable within a predetermined range.

The variable arm may be provided with a cable installation device rotatably connected to the body portion, the cable installation device being capable of supporting the transverse member when the cable tray forms a curved portion.

The cable laying apparatus according to the embodiment of the present invention can simplify the work process and shorten the work time by pulling the cable by the power without moving the rope by the winch and moving the cable tray.

In addition, the cable can be easily installed even in a narrow section.

In addition, it is possible to minimize the intervention of the operator and prevent the injury of the operator, which may be caused by pulling the cable.

1 is a perspective view showing a state in which a cable laying apparatus according to an embodiment of the present invention is installed.
2 is a perspective view showing a cable installation apparatus according to an embodiment of the present invention.
3 is a front view showing the guide portion.
4 is a plan view showing a variable arm.
5 to 7 are views showing a cable installation apparatus according to an embodiment of the present invention,
FIG. 5 is a side view showing a state in which the variable arm moves in the advancing direction, FIG. 6 is a view showing a state in which the variable arm passes the rung, and FIG. 7 is a partial side view showing a state in which the cable laying apparatus moves by pulling the variable arm.
FIG. 8 is a plan view showing a cable installation device according to an embodiment of the present invention moving in a curved portion. FIG.
Fig. 9 is an enlarged view of Fig.
10 is a perspective view showing the pulling portion.
11 is a perspective view showing a cable installation apparatus according to another embodiment of the present invention.
12 and 13 are views showing a cable installation apparatus according to another embodiment of the present invention moving,
12 is a plan view showing a state in which a variable arm of a group is caught by a rung, and FIG. 13 is a plan view showing a state in which a variable arm of another group is caught by a rung.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

1 is a perspective view showing a state in which a cable installation apparatus 100 according to an embodiment of the present invention is installed.

A cable laying apparatus 100 according to an embodiment of the present invention includes a cable tray 11 having a longitudinal member 11 arranged in parallel with a plurality of transverse members 12 connecting between the longitudinal members 11, 10) (Cable Tray).

The cable tray 10 provides a space through which the cable C is installed and includes a side rail 11 as a longitudinal member and a rung 12 as a transverse member. The side rails 11 may be in the shape of a " C " The upper bent portion is referred to as an upper bent portion 11-1 and the lower bent portion is referred to as a lower bent portion 11-2. The pair of side rails 11 can be arranged in parallel and serves as a guide to prevent the cable C from being detached. The rungs 12 connect between the side rails 11, and a plurality of the rungs 12 are arranged at regular intervals to form a virtual support surface on which the cable C is laid. Roller (not shown) for reducing the frictional resistance of the cable C may be installed in the rung 12 or a cable tie (not shown) for bundling the cable C may be fixed A coupling hole (not shown) may be formed.

The cable tray 10 may be arranged in a curved line and may be arranged to be bent upward or downward to install the cable C in order to avoid an obstacle or the like. In addition, a multi-layered cable tray 10 may be disposed so that a large number of cables C may be installed in a narrow space.

2 is a perspective view showing a cable installation apparatus 100 according to an embodiment of the present invention.

A cable installation device 100 according to an embodiment of the present invention includes a body 110 moving on a cable tray 10, a guide 130 for guiding the body 110, a cable tray 10, And a cable pulling portion 140 for pulling the cable C. The variable arm 120 has a length varying in a direction in which the cable C is installed.

The body portion 110 moves the cable C in the cable installation direction on the cable tray 10 while pulling the cable C to lay the cable C. [ The body 110 includes a variable arm 120, a guide unit 130, and a housing 111 capable of supporting the pull unit 140.

3 is a front view showing the guide part 130. As shown in FIG.

The guide unit 130 guides the cable tray 10 so that the body 110 can move on the cable tray 10 in the cable installation direction. 3, the guide part 130 is configured to be supported by the upper part of the rung 12 so as to be spaced apart from the upper part of the rung 12. However, (130).

3 shows an example of the guide part 130. The upper guide roller 131 rolls along the upper surface of the upper bending part 11-1 of the side rail 11 and the upper guide roller 131 rolls along the outer side surface of the side rail 11. [ And a side guide roller 132 that rolls. And may include guide portions that are not shown but can slide, and may include guide portions that roll along the inner side surfaces of the side rails 11. [

The guide part 130 may be connected to the body part 110. Although the figure shows that the guide part 130 is connected to the housing 111, it includes a fixed part inside the housing 111 (for example, a variable arm fixing part 121 described later).

The width of the cable tray 10 may be different. The cable installation apparatus 100 according to the embodiment of the present invention includes a length varying unit 133 for adjusting the distance between the guide unit 130 and the body 110 so as to be installed in the cable tray 10 having various widths, . ≪ / RTI > The length variable portion 133 may include an insertion structure or an elastic structure. The insertion structure includes that which can be fixed through screw or pin connection after adjusting the spacing of the two separated members. The resilient structure can provide an adhesion force for bringing the guide rollers 131 and 132 into close contact with the side rails 11 and rungs 12 using elastic members. The direction of the elastic force may vary depending on the direction of the side rails 11 and the guide rollers. That is, when the guide roller is moved to the outer side surface of the side rail 11, an elastic force (a repulsive force against pulling force) is applied to the length varying portion 133 by pulling a tension spring, The elasticity force (the repulsive force against the compressive force) acting in the direction opposite to the main body can be applied to the length variable portion 133 by using the compression spring.

4 is a plan view showing the variable arm 120. FIG.

The variable arm 120 is connected to the body 110 to vary the length of the variable arm 120 in the cable installation direction. Cylinder type, rack and pinion type, screw and nut type, and the like can be used as the variable means for varying the length of the variable arm 120. Or a link structure may be used. The variable arm 120 according to the embodiment of the present invention uses a cylinder type.

The variable arm 120 includes a variable arm fixing portion 121 connected to the body portion 110, a variable arm variable portion supported by the variable arm fixing portion 121 and positioned in the installation direction of the cable tray 10 122), and a variable arm hooking portion 123 (see FIG. 3) rotatably connected to the variable arm variable portion 122. Since the variable arm 120 according to the embodiment of the present invention uses a cylinder system using pneumatic or hydraulic pressure, the variable arm fixing portion 121 serves as a cylinder block, the variable arm variable portion 122 serves as a plunger Plunger) or piston (Piston). Although the one-stage cylinder is shown in Fig. 4, two or more cylinders may be used depending on the variable length.

5 to 7 illustrate how the cable installation apparatus 100 moves according to an embodiment of the present invention. FIG. 5 shows a state in which the variable arm 120 moves in the advancing direction, FIG. 7 is a partial side view showing a state in which the cable installation apparatus 100 moves by pulling the rungs 12 of the variable arm 120. FIG.

The variable arm hooking part 123 can pass without being obstructed by the rung 12 when the variable arm 120 changes its length in the installation direction of the cable tray 10, that is, when the variable arm 120 moves forward. However, in the opposite direction, that is, in the case of restoring movement, the variable arm hooking portion 123 is hooked on the rung 12 and the body portion 110 connected to the variable arm fastening portion 121 is pulled in the cable installation direction. Thus, a cable (C) pulled by the body portion (110) is laid along the cable tray (10).

The variable arm hooking portion 123 may include a bent shape with respect to the variable arm 120 for catching the rung 12. [ The figure shows the shape bent to the letter 'A', but the angle and shape are not limited thereto. A frictional member (not shown) is attached to the inside of the variable arm retaining portion 123 to increase frictional force when contacting the rung 12 to prevent the variable arm retaining portion 123 from being dislodged from the rung 12 can do.

5 to 7, the variable arm hooking part 123 may be a plate which is coupled to the end of the variable arm variable part 122 by a rotation shaft 123-1. When the variable arm variable portion 122 advances and passes through the rung 12, the variable arm hook portion 123 strikes against the rung 12, So that the variable arm variable portion 122 can continue to advance without being obstructed by the rung 12. When the variable arm hooking part 123 passes the rung 12 completely, the plate is again opened by gravity.

When the variable arm variable portion 122 performs a restoring motion, the variable arm retaining portion 123 strikes the rung 12 in an expanded state. However, the variable arm retaining portion 123 is supported by the rung 12 because it is not folded by the retaining jaw 122-1 in the installation direction. Therefore, the contraction movement of the variable arm 120 can act as a pulling force of the body portion 110. [

And may include an elastic member 124 to facilitate restoring the variable arm retaining portion 123 to a state in which the variable arm retaining portion 123 can be caught by the rung 12. [ The figure shows that the elastic member 124 is provided in the groove 125 provided at the end of the variable arm variable portion 122. One end of the elastic member 124 is connected to the variable arm variable portion 122 and the other end is connected to the variable arm hook portion 123 to provide a pulling force to the variable arm hook portion 123. The elastic member 124 may be a compression spring, a tension spring, a torsion spring, a release spring, a leaf spring, or the like, and the installation position may be selected as needed.

In FIG. 2, two variable arms 120 are shown, and the two variable arms 120 simultaneously move in the same direction. The cable installation device 100 advances in the installation direction by the amount of contraction of the variable arm 120 after the two variable arms 120 are advanced and caught by the rungs 12 and then the two variable arms 120 are advanced And has a rest period until it is caught in the rung 12. Alternatively, one variable arm may be provided.

Further, when the two variable arms 120 are provided, the two variable arms 120 can be operated alternately. That is, after one variable arm advances and is caught in the rungs 12, the variable arm advances in the installation direction by the amount of shrinkage of the variable arm, and then the other variable arm can advance. At this time, if another variable arm is stretched while one variable arm is contracted, the resting period in which the cable laying apparatus 100 does not move can be reduced, so that the installation speed can be improved.

Alternatively, it is also possible to selectively operate whether the two variable arms 120 move simultaneously or alternately. When two variable arms 120 are moved at the same time, there is an advantage that a large force can be obtained while the speed is slow. Therefore, when the cable C is heavy or the tension applied to the cable C is large, it may be advantageous for the two variable arms 120 to move at the same time. In addition, in the case where the cable C is light or the tension applied to the cable C is small, the two variable arms 120 alternately operate to improve the installation speed. That is, the operation method of the cable laying apparatus 100 can be changed according to the circumstances, thereby improving the efficiency.

The variable arm 120 may include a sensor (not shown) capable of recognizing the rung 12. When the sensor recognizes the rung 12, it is determined that the variable arm hanger 123 is in a state capable of being caught by the rung 12, and the further extension of the variable arm 120 can be blocked. Therefore, the variable arm 120 can be extended only by a necessary distance, thereby improving the moving speed of the cable installation device 100. When the cable installation apparatus 100 is applied to the cable tray 10 having different distances between the rungs 12 and the rungs 12 due to the use of the sensors, 12 so as to correspond to the distance between them.

When the distance between the rung 12 and the rung 12 is close to the extension length of the variable arm 120, the sensor calculates the number of rungs 12 in consideration of the extension length of the variable arm 120, . That is, when the extension length of the variable arm 120 is longer than the distance between the three rungs 12, the sensor recognizes the two rungs 12 and then the variable arm hanger 123 is hooked on the rung 12 It can be judged that it is in a state where it is possible.

The cable installation apparatus 100 according to an embodiment of the present invention is also movable in an upwardly curved cable tray 10. Since the variable arm 120 of the cable installation apparatus 100 moving in the plane moves in one direction in the horizontal direction to the cable tray 10, (123) may not be caught. However, since the guide portion 130 is supported by the side rail 11, it does not separate from the cable tray 10.

In the upwardly curved cable tray 10, the sensor may not be able to recognize the next rung 12. In this case, the sensor recognizes it as an error and can send a signal to the outside through the transmitting part (not shown) to notify the error. This operation is effective not only in the upwardly bent cable tray 10 but also in the cable tray 10 in which the installation of the rung 12 is erroneous or obstacle, a signal informing an error to the outside through the transmission section.

The cable laying apparatus 100 according to an embodiment of the present invention is also movable in a curved portion that is curved to the side. FIG. 8 is a plan view showing a cable installation apparatus 100 according to an embodiment of the present invention moving in a curved portion, and FIG. 9 is an enlarged view of FIG.

In the curved portion of the cable tray 10, the gap between the rungs 12-1 and 12-2 is different in the width direction of the cable tray 10 as shown in FIG. That is, the gap between the rung 12-1 and the rung 12-2 is close to the center A near the center of curvature, and the rung 12-1 and the rung 12- 2) is long. In addition, the rungs 12-1 and 12-2 are not arranged in parallel but are arranged at a constant angle.

Since the cable installation apparatus 100 according to the embodiment of the present invention includes the guide portion 130 guided along the side rail 11, the cable installation apparatus 100 can move without departing from the cable tray 10 even in the curved portion. Hereinafter, an operation method for maximizing the operation efficiency in the trough portion will be described.

Each of the variable arms 120-1 and 120-2 includes a sensor (not shown), and can independently operate according to a signal given by each sensor. Since the distances to the next rungs 12-2 are different in the extension direction of the respective variable arms 120-1 and 120-2 in the trough portion, the variable arm hooking portions 123 are engaged with the next rung 12-2 The distance at which the variable arms 120-1 and 120-2 extend is different. That is, since each sensor recognizes the rung 12-2 and independently operates the variable arms 120-1 and 120-2, the distances between the rung 12-1 and the rung 12-2 are different The cable laying apparatus 100 can stably travel along the trough in the installation direction.

The variable arm 120 can rotate about an axis as shown in Fig. In order to grip the rung 12 in the curved portion, the variable arm 120 has to be rotated to match the angle of the rung 12. Therefore, the variable arm fixing portion 121 can be coupled to the shaft 126 so as to be rotatable with respect to the body portion 110 in the axial direction. The variable arm 120 is rotated in accordance with the angle of the rung 12 so that the variable arm hanger 123 is held in close contact with the rung 12 and the shrinkage of the variable arm 120 in the direction perpendicular to the rung 12 So that the operation efficiency is increased. 9 shows that the variable arm fixing portion 121 is engaged with the shaft 126, the variable arm fixing portion 123 may be axially coupled with the variable arm varying portion 122. [

10 is a perspective view showing the pulling portion 140. FIG.

The pulling part 140 is connected to the body part 110 to pull the cable C. The pulling part 140 may be integrally formed with the body part 110 or may be connected to the body part 110 as a separate device as shown in the drawing.

10, the pulling portion 140 includes a contact member 142 for gripping the cable C so as not to be pulled out from the cable C and a plurality of closely contacted members 142 for laying a plurality of cables C in a bundle A bundle pulling member 141 capable of simultaneously connecting the member 142 to the body 110 and a rotating member 143 capable of preventing the pulling unit 140 from being twisted.

The contact member 142 may have a hollow meshed shape. When the cable C is inserted into the empty space of the contact member 142 and then pulled, the length of the contact member 142 is increased, and the cross section is reduced. Therefore, the cable C intruding can be firmly tightened. The bundle pulling member 141 may be provided with a plurality of first connection rings 145 connected to the contact member 142 for laying a plurality of cables C in a bundle. The first connection rings 145 may be arranged in a line so as to be easily installed in the cable tray 10. The contact member 142 may be provided with a second connection loop 146 for connection with the first connection loop 145. The first connection loop 145 and the second connection loop 146 are rotatably coupled to prevent the cable C from being twisted.

The bundle pulling member 141 may be connected to the body 110 through the rotating member 143. [ Twisting may occur at a portion where the body portion 110 is connected to the bundle pulling member 141 while moving the cable tray 10. Since the rotary member 143 is free to rotate 360 degrees, it is possible to prevent twisting of the bundle drawing member 141.

11 is a perspective view showing a cable installation device 200 according to another embodiment of the present invention.

A plurality of variable arms 220 may be provided in the direction of the rungs 12 (the width direction of the cable tray 10) and the plurality of variable arms 220 may be divided into two groups 221 and 222 Can be distinguished. That is, among the plurality of variable arms 220 provided in the longitudinal direction of the rung 12, the variable arms 221-1 and 221-2 belonging to one group and the variable arms 222 of the other group alternate with each other Can be operated.

Among the plurality of variable arms 220, one group of variable arms 221-1 and 221-2 is advanced by a distance between the rungs 12 from the other group of variable arms 222 which are alternately operated, . The distance by which the body portion 210 can move by the group of variable arms 221-1 and 221-2 is equal to the distance between the rungs 12-1 and 12-2. At this time, the distance between the rungs 12-1 and 12-2 may be the distance between the neighboring rungs 12-1 and 12-2, and depending on the extension length of the variable arm 220, It may be a distance between several rungs 12 and a rung 12-1 and rung 12-3.

12 and 13 are views showing a state in which a cable installation apparatus 200 according to another embodiment of the present invention is moved. FIG. 12 shows a state in which a group of variable arms 221 are engaged with a rung 12-1 And Fig. 13 is a plan view showing a state in which the variable arm 222 of the other group is caught in the rung 12-2.

The variable arms 222 of the other group are caught or caught by the rungs 12-2 after the group of variable arms 221 are contracted while being held on the rungs 12-1 and the body portion 210 is advanced It can be in a position. Therefore, it is possible to continuously move the cable laying apparatus 200.

Although the cable installation apparatus 100 according to the embodiment shown in FIG. 2 uses two variable arms 120, the cable installation apparatus 200 according to another embodiment shown in FIG. 11 includes three variable arms 120 220). In the cable installation device 200 according to another embodiment, the two variable arms 221 located at the outer side and the variable arm 222 located at the center can be alternately moved.

The cable laying apparatus 200 advances in the installation direction by the amount of contraction of the variable arm 221 after the variable arm 221 located at the outer periphery is advanced and caught by the rung 12-1 as shown in Fig. The two variable arms 222 located at the same center can advance. At this time, if the variable arm 222 located at the center advances while the variable arm 221 located at the outer periphery is contracted, the rest period during which the cable installation apparatus 200 does not move can be reduced, thereby improving the installation speed .

When the three variable arms 220 are used, the balance of the force that the variable arm 220 is contracted while pulling the body portion 210 is smaller than that of the body portion 210 ). ≪ / RTI > This advantage is maximized when the guide portion 130 is not included, or when the cable tray 10 is placed in the upward direction.

The variable arm retaining portion 223 of the variable arm 220 according to another embodiment may have a shape bent in a " C " shape with respect to the variable arm 220. [ There is an advantage that it is possible to surely prevent the rung 12 from being detached from the variable arm hooking portion 223 when bent into the 'C' shape. That is, when the rung 12 is inserted into the space provided between the two bent portions of the variable arm hooking portion 223, the rung 12 can not be separated in the upward and downward directions. Even when the cable tray 10 is inclined upward (including inclination in the vertical direction) when the 'C' variable arm retaining portion 223 is used, an advantage of preventing the cable laying apparatus 200 from falling down .

Next, although not shown in the drawings, a description will be given of a cable laying apparatus 200 for moving a slanted cable tray. When the cable installation device 200 is tilted upward, the force to fall is always applied due to the weight of the cable installation device 200. In the case of including a variable arm 120 which alternately operates as the variable arm 220 according to another embodiment and includes a variable arm holding portion 223 having a 'U' shape, a stable inclined cable tray Can be moved. The body portion 210 can be stably held on the cable tray in spite of the weight while the two variable arms 221 located on the outer side are advanced and the body portion 210 is moved by hanging the rung. Thus, the cable laying apparatus 200 is prevented from being detached from the cable tray while the variable arm 122 positioned at the center advances.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, You will understand. Accordingly, the true scope of the invention should be determined only by the appended claims.

10: Cable tray, 11: Side rail,
12: rung, 100: cable laying device,
110: body portion, 111: housing,
120: variable arm, 121: variable arm fixing portion,
122: variable arm variable section, 123: variable arm retaining section,
130: guide portion, 131: upper guide roller,
132: side guide roller, 133: length variable portion,
140: pulling portion, 141: bundle pulling member,
142: tight contact member, 143: rotating member,
144: pull portion connecting link, 145: first connecting link,
146: second connection ring, 200: cable installation device,
210: body portion, 220: variable arm,

Claims (15)

There is provided an apparatus for moving a cable along a cable tray including a longitudinal member disposed parallel to each other and a plurality of transverse members connecting the longitudinal member,
A body portion moving on the cable tray;
A variable arm connected to the body portion and having a variable arm length variable in the installation direction of the cable tray and capable of hanging the transverse member on one side; And
And a pulling portion connected to the body portion and pulling the cable. The method according to claim 1,
Wherein when the variable arm is variable in length in the direction in which the cable tray is installed, the variable arm hanging portion passes the transverse member, and the variable arm moves in a direction opposite to the installation direction of the cable tray The variable arm fastening portion is caught by the transverse member so as to move the body portion in the direction of installing the cable tray. 3. The method according to claim 1 or 2,
And a guide portion connected to the body portion and guiding the body portion along the cable tray. The method of claim 3,
Wherein the guide portion is a guide roller that rolls along the longitudinal member. 5. The method of claim 4,
Wherein the guide roller includes a side guide roller that moves along an outer surface of the longitudinal member and an upper guide roller that moves along an upper bent portion of the longitudinal member. The method of claim 3,
Wherein the body portion or the guide portion includes a length varying portion adapted to be applied to the cable tray having a different width. The method according to claim 6,
Wherein the guide portion includes a side guide roller that moves along an outer side surface or an inner side surface of the longitudinal member,
Wherein the length varying portion provides an elastic force such that the side guide rollers can be brought into close contact with the longitudinal member. 3. The method according to claim 1 or 2,
Wherein the variable arm comprises:
A variable arm fixing part connected to the body part;
A variable arm variable portion supported by the variable arm fixing portion and being displaced in the installation direction of the cable tray; And
And a variable arm hook portion rotatably connected to the variable arm variable portion,
Wherein the variable arm variable portion and the variable arm retaining portion are restricted in rotation beyond a range defined by the engagement protrusion. 9. The method of claim 8,
Wherein an elastic member is provided between the variable arm variable portion and the variable arm retaining portion to provide an elastic force to a position where the variable arm retaining portion can hang the transverse member. 3. The method according to claim 1 or 2,
Wherein the variable arm is variable in length by using a cylinder device. 3. The method according to claim 1 or 2,
Wherein the variable arm includes a plurality of variable arms which are alternately operated. 12. The method of claim 11,
And a group of the variable arms of the plurality of variable arms are arranged to be advanced by a distance between the transverse members with respect to the variable arms of the other groups operating alternately. 3. The method according to claim 1 or 2,
Wherein the variable arm includes a sensor capable of recognizing the transverse member. 14. The method of claim 13,
And a signal portion capable of transmitting a signal when the transverse member can not be recognized while the length of the variable arm is variable within a predetermined range. 3. The method according to claim 1 or 2,
Wherein the variable arm is rotatably connected to the body portion so that the variable arm can accommodate the transverse member that is inclined when the cable tray forms a curved portion.

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