JP3000234U - Roller device for laying wiring materials - Google Patents

Abstract

(57) [Abstract] [Purpose] To minimize the abrasion of the outer covering of electric wires, etc., and reduce the resistance when pulling to improve work efficiency. Between a base 1 placed on a flat surface PP, an arm portion 2 provided on the base 1 with a tip 2a protruding from the front surface of the base 1 at a predetermined angle, and a tip 2a of the arm 2. A roller 3 rotatably provided in the pulling direction of the wiring member, and an engaging piece 5 that hangs down below the lower surface of the base 1 in front of the base 1 and engages with the inner surface of the wiring pipe. It has.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wiring material laying roller device used when a wiring material such as an electric power wire is pulled out from a pipe provided in a building.

[0002]

[Prior art]

 Conventionally, in buildings, pipes are embedded in walls, and wiring materials are routed inside the pipes. In such wiring work, the wiring material is laid in the intended section by pulling it manually. When laying wiring material, the outer covering of the wiring material may come into contact with the building floor or wall surface and become worn. Therefore, for example, in a flat place such as a building floor or a shelf for electric wires in a factory building, in order to eliminate the abrasion of the outer cover, install the floor roller that is rotated on a flat surface in a straight line and wire it. The material is placed on these floor rollers so that it does not come into contact with the flat surface, and the material is pulled in the specified direction for laying work. This floor roller has a structure in which the roller is rotatably supported on the upper surface of a flat base.

[0003]

[Problems to be solved by the device]

 By the way, the place to lay wiring materials is not limited to the above-mentioned flat place, but can be taken out from a pipe embedded in a wall, a building floor, a ceiling, or the like, or inserted into the pipe. is there. In this case, when the wiring material is taken out from the pipe in the direction of the flat surface, or vice versa, the wiring material moves outside the pipe in a direction different from that inside the pipe. It comes into contact with the cut end of the pipe. Due to such contact with the end cut portion, the outer covering of the wiring material is worn or damaged, and the insulation performance of the outer covering is significantly deteriorated. Further, since the wiring material rubs against the end portion of the pipe, resistance is required to pull the wiring material, and the laying work may not proceed smoothly.

In order to prevent such damage to the outer cover and delay in the laying work, it is conceivable to use the above-mentioned floor roller, but since the floor roller is based on being installed on a flat surface. However, it was difficult to fix it to the pipe outlet, and even if it could be fixed, the jig for fixing it was large and it was not easy to remove it.

The present invention aims to solve such a problem.

[0006]

[Means for Solving the Problems]

 The present invention has taken the following means in order to achieve such an object. That is, the roller apparatus for laying wiring material according to the present invention includes a base mounted on a flat surface, an arm portion provided on the base with a tip portion protruding from the front surface of the base at a predetermined angle, A roller that is rotatably provided in the direction of pulling the wiring material between the distal ends of the arms and a member that hangs downward from the lower surface of the base in front of the base and engages with the inner surface of the wiring pipe. It is characterized by comprising a joint piece.

In order to firmly engage the wiring pipe in consideration of the pulling direction of the wiring material, the base has a sidewall having a plurality of through holes, and the arm portion has one through hole. It is preferable that it is rotatably attached to the base, and the rotation of the arm is restrained by penetrating the through hole of the side wall and the through hole of the arm with a rod. Further, in order to be usable for a wiring pipe that opens from the ceiling surface, it is preferable that the base be configured to include an adsorption device. Furthermore, to facilitate horizontal placement and to disperse the load on the flat surface, the base consists of a bottomless box made of sheet metal and extends substantially horizontally outward at the lower edges of both side surfaces. It is preferable to have a horizontal edge portion and a cut portion formed by cutting the front wall in the center portion of the front surface.

[0008]

[Action]

 With such a structure, when the base is placed on the flat surface near the wiring pipe and the engaging piece is engaged with the inner surface of the wiring pipe, the roller moves toward the tip of the arm portion. Since the pipe is rotatably supported, the end of the pipe and the roller are separated from each other. When the wiring material is brought into contact with this roller and pulled from the inside of the pipe to the outside, the wiring material is pulled out without coming into contact with the end of the pipe, and the jacket is not damaged by the pipe. At this time, a pressing force is applied to the roller according to the pulling force of the wiring material, and the pressing force is transmitted to the base through the arm and acts in the direction of separating the base from the pipe. However, since an engaging piece is provided in front of the base and the engaging piece is engaged with the inner surface of the pipe, if the base moves in the separating direction, the engaging piece will be firmly attached to the pipe. Since it engages with the inner surface, it can be easily attached and detached, but it is locked to the pipe without falling off during the laying work of the wiring material.

Moreover, since the roller rotates in the pulling direction, the resistance force generated by the contact when pulling the wiring material does not occur, and the laying work proceeds smoothly without requiring a large force, which results in labor and labor. Man-hours and savings.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

A wiring material laying roller device RA (hereinafter referred to as a roller device) RA shown in FIG. 1 includes a base 1 placed on a flat surface PP and a tip portion 2 a at a predetermined angle on the base 1. An arm portion 2 provided so as to project from the front surface of the base 1, a roller 3 provided between the tip 2a of the arm portion 2 so as to be rotatable in the pulling direction of the wiring material, and in front of the base 1. And an engaging piece 5 that hangs downward from the lower surface of the base 1 and engages with the inner surface of the wiring pipe 4.

The base 1 is made of a thick metal plate and is composed of a box-shaped bottomless box body 11 having a hollow interior and no bottom surface. The front surface 11 a and the top surface 11 have a predetermined width in the center thereof. The wall and the upper wall are cut off to form a cutout portion 12. The base 1 has no bottom surface so that the level can be easily obtained when the base 1 is placed on the flat surface PP, while the left and right side surfaces 11c of the left and right side surfaces 11c are prevented from being buried in the flat surface PP. The lower edge has a horizontal edge 11d that extends substantially horizontally to the outside to make it easier to level during use, and the load applied to the base 1 is not applied to the cut end surface of the sheet metal material, It is supported by a flat surface with a wider area than that. On both sides of the cutout portion 12 on the upper surface of the base 1, arm portions 2 are erected in a forward tilted posture at a predetermined angle.

The arm portion 2 has a channel shape in which a bent portion 21 is formed by bending an edge portion of a rectangular sheet metal material in the same direction to form a channel shape, and rigidity is enhanced. In the arm portion 2 of this embodiment, the end portion on the side fixed to the base 1 is formed wider than the tip portion 2a to which the roller 3 is attached. Further, a horizontal member 6 for fixing the engagement piece 5 is welded and fixed to the front surface of the arm portion 2. The horizontal member 6 is laid so as to connect the left and right arm portions 2 so as to prevent expansion between the distal end portions 2a of the arm portions 2. The engaging piece 5 hangs downward from the front portion of the horizontal member 6 and forward of the front surface 11a of the base 1, and the tip 2a thereof is located at the lower surface of the base 1, that is, the lower surface of the horizontal edge 11d. It extends below the position. The horizontal position of the engagement piece 5 with respect to the base 1 may be slightly forward of the rotation center of the roller 3 described later in order to strengthen the engagement state with the pipe 4 during use.

The roller 3 is made of rubber, and is rotatably attached to a rotary shaft S1 horizontally extending between the tip portions 2a of the arm portion 2. Both ends 3a of the roller 3 have the maximum diameter, and the roller 3 has the minimum diameter at the central portion 3b in the direction of the rotation axis S1. That is, the roller 3 has a drum shape so that the wiring material placed on the central portion 3b does not easily fall off the roller 3.

The roller device RA having such a structure is used by being engaged with an end portion of the pipe 4 which constitutes a conduit for electric wire wiring of a building. That is, for example, it is used by engaging with a pipe 4 whose end 4a is exposed in a pull box PB for connecting electric wires CA from multiple directions. explain.

The pull box PB is a substantially cubic box body made of iron and having a door (not shown) attached to the front opening PBa so as to be openable and closable. The pipes 4 are fixed to the upper and lower wall surfaces and the left and right wall surfaces so as to communicate with the inside of the pull box PB from the vertical direction and the horizontal horizontal direction, respectively. The pipe 4 is processed in the vicinity of its end 4a so that it can be fixed to the respective wall surfaces of the pull box PB with bolts B and nuts N, and the end 4a is fixed so as to project from the respective wall surfaces. Now, assuming that the electric wire CA is drawn out from the lower pipe 4 as shown in FIG. 3, the engagement position at the end 4a of the pipe 4 is determined in accordance with the direction in which the electric wire CA is drawn out. Next, the roller device RA is placed at the engagement position. In this case, the engagement piece 5 is inserted inside the pipe 4, and the base 1 is arranged around the pipe 4. The engaging piece 5 may be brought into contact with the inner wall of the pipe 4, and even if the engaging piece 5 is not in contact with the pipe 4, the engaging piece 5 comes into contact with the wire CA during use due to the pressing force of the wire CA when the wire CA is pulled out. In this state, the roller device RA is easily lifted above the pipe 4, so that the engagement with the pipe 4 can be immediately released by applying a force in the upward direction, but in the horizontal direction, the engagement piece 5 is released. Engages with the inner wall of the pipe 4, so it cannot be released. Although there are places where the bolt B and the nut N project near the pipe 4 depending on the position, since the cutout portion 12 is provided on the front surface of the base 1, the bolt B and the nut N are By arranging the roller device RA inside the cutout portion 12, the roller device RA can be arranged similarly to the position where the bolt B and the nut N are not provided.

When the arrangement of the roller device RA is completed, the electric wire CA is pulled out from the pipe 4 and placed on the roller 3. Then, in order to pull out the electric wire CA led out from the vertically downward direction, it is pulled out from the roller 3 at an angle of, for example, about 45 °. Then, the pressing force acts on the roller device RA in the direction away from the pipe 4 and downward, respectively, so that the engagement piece 5 is not locked to the inner wall of the pipe 4 and the roller device RA is not displaced. . Moreover, since the roller 3 is rotatably attached to the front end portion 2a of the arm portion 2 that projects forward from the front surface of the base 1, the roller 3 rotates as the electric wire CA is pulled, and the electric wire CA The present invention provides a smooth working environment for pulling out the electric wire CA without causing friction with the electric wire CA, that is, resistance to pulling out the electric wire CA. As described above, since the jacket of the electric wire CA is not damaged by rubbing against other members and an extra pulling force is not required in the drawing work, the laying work can be rapidly advanced, and The reliability of the installed electric wire CA can be maintained in the state before the installation. Moreover, since the horizontal edge 11d is formed at the lower end of the side surface 11c of the base 1, the load from the wire CA is received by the surface having an area several times as large as the cut end surface of the sheet metal material. It is possible to continue the laying work without damaging the wall surface. Further, in the case where the central portion 3b of the roller 3 has a smaller diameter than the both end portions 3a as in this embodiment, even if the electric wire CA moves to the left and right, the electric wire CA does not stick out from the left and right direction of the roller 3 and the work is continued. It can be carried out.

The present invention is not limited to the embodiments described above. For example, the arm portion 2 attached to the base 1 may be configured so that the attachment angle can be changed.

In another embodiment, as shown in FIG. 4, an arm portion 102 that rotatably supports the roller 3 is rotatably attached to the base 101. That is, the arm portion 102 is attached so as to rotate in the front-rear direction of the base 101 about the rotation axis S2, and is aligned on a straight line connecting the rotation axis S2 and the rotation axis S1 of the roller 3. One through hole 102a is formed. The through hole 102a determines the angle of the arm portion 102 by relating to the angle adjusting hole 7a which is a through hole provided in the side wall 7 described later. The lower end 102b of the arm portion 102 is accommodated inside the base 101 and can rotate without contacting other articles. In the case of this embodiment, since the arm portion 102 is rotated, the engagement piece 5 is extended from a horizontal member (not shown) which is horizontally extended on the side wall 7.

In order to hold such an arm portion 102 at a predetermined angle position, a side wall on the upper surface 101a of the base 101 and on both outer sides of the arm portion 102 with three angle adjusting holes 7a. 7 are erected. In this embodiment, the arm portion 102 can be adjusted in three steps from a shallow angle of about 30 ° to a vertical (90 °) position. The angle is adjusted by arranging the angle adjusting hole 7a and the through hole 102a of the arm portion 102 in a straight line and holding the arm portion 102 at a predetermined angle by penetrating the pin P across both. There is. The pin P is preferably a bolt, and a nut may be screwed on one end after the pin P so that the pin P does not easily fall off.

In the other embodiment, the arm is engaged and installed at the end position of the pipe 4 in the same manner as in the above embodiment, and the arm is provided according to the pull-out angle of the electric wire CA pulled out from the pipe 4 and the space available for pull-out. The angle of the portion 102 may be adjusted. By changing the angle of the arm portion 102, the state in which the electric wire CA is in contact with the roller 3 changes, and the resistance when pulling the electric wire CA can be reduced.

As yet another embodiment, as shown in FIGS. 5 and 6, the adsorption device 8 is attached to the base 201 so that it can be used by engaging with the pipe 4 that opens downward. It may be one. That is, the structure is the same as that of the above embodiment except the base 201, and the adsorption device 8 is provided on the base 201. Also in this other embodiment, the base 201 has a bottomless box body 211 having a hollow inside similarly to the above-described embodiment, and the adsorption device 8 is housed in the bottomless box body 211. The bottom surface constitutes a part of the bottom surface of the base 201.

The suction device 8 is composed of a rubber suction member 81 that sucks on the flat surface PP, and a suction device body 82 that supports the suction member 81. The adsorption device main body 82 includes a support portion 82a having an inverted shape of a circular deep basin, a grip portion 82b which is integrally provided on the upper surface of the support portion 82a and is grasped when releasing the suction state, and the suction portion 82b. A handle 82c for pulling up only the substantially central portion of the member 81 and a spring 82d interposed between the handle 82c and the suction member 81 are provided. In this suction device 8, the grip 82b is fixed to the mounting side wall 201a provided on the base 201 by using bolts B2, B3 and nuts N2, and the rear end of the grip 82b is used for removal. For convenience, it is projected rearward from the rear surface of the base 201. Although the mounting side wall 201a has a mounting hole 201b through which a bolt is inserted, the mounting hole 201b is a long hole so that the suction device main body 82 can be slightly adjusted vertically with respect to the base 201. In this suction device 8, when the handle 82c is moved from the forward tilted position to the rearward tilted position, the substantially central portion 81a of the suction member 81 is interlocked with the movement of the handle 82c inside the suction device main body 82 (see FIG. In 6), it elastically deforms downward. In other words, since the handle 82c is operated, the peripheral portion 81b of the substantially flat adsorption member 81 does not deviate toward the inside of the adsorption device body 82 regardless of the operation of the handle 82c, and only the substantially central portion thereof. Is deviated. When the suction member 81 is changed in this way, when the handle 82c is operated in a state where the suction member 81 is pressed against the flat surface PP, a substantially central portion 81a is formed between the flat surface PP and the suction member 81. A substantially vacuum space is formed at a deviated position, and the vacuum is applied to the flat surface PP.

In this further embodiment, it can be used, for example, when pulling out the electric wire CA from the pipe 4 attached to the upper surface of the pull box PB. First, as in the above embodiment, the roller device RA is applied to a desired position of the pipe 4, and the suction member 81 of the suction device 8 is pressed so as to be in close contact with the inner surface of the pull box PB. In that state, the handle 82c is operated to reliably move the handle 82c to the rear position. By this operation, the adsorption device 8 is adsorbed on the inner surface, but if it is not completely adsorbed, the above operation is repeated. In such a sucked state, the roller device RA does not drop unless relatively large force is applied, and is parked at the engagement position of the pipe 4. Then, if the electric wire CA is brought into contact with the roller 3 as in the above-described embodiment and then pulled downward at a predetermined angle, the electric wire CA can be pulled out without resistance by the rotation of the roller 3 and the outer cover is damaged. There is no. In addition, since the load corresponding to the pulling force is applied to the roller device RA during the work of pulling out the electric wire CA, the suction force of the suction device 8 does not decrease, and it does not fall. Further, after the work, the suction state is released by moving the handle 82c of the suction device 8 forward, and since the roller device RA is not fixed to the pipe 4 by a clamp or the like, the suction state is changed. If released, the roller device RA can be immediately removed, and the work can be speeded up.

The suction devices 8 do not have to be housed in the base 201, and a plurality of suction devices 8 may be attached to the side surface of the base 201.

Besides, the configuration of each part is not limited to the illustrated example, and various modifications can be made without departing from the spirit of the present invention.

[0027]

[Effect of device]

 In the present invention, as described in detail above, by freely rotating the roller, the drawn wiring material can be pulled without coming into contact with the end of the pipe, so that the outer covering of the wiring material is not worn. In addition to being able to suppress it, the tensile stress can be made as small as possible, and therefore the resistance at the time of pulling out work is low and the laying work can be performed extremely efficiently.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side view of the embodiment.

FIG. 3 is a partial sectional side view showing a usage state in the pull box of the embodiment.

FIG. 4 is a side view showing another embodiment of the present invention.

FIG. 5 is a plan view showing still another embodiment of the present invention.

FIG. 6 is a side view of still another embodiment in use.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Base 2 ... Arm part 2a ... Tip part 3 ... Roller 4 ... Pipe 5 ... Engaging piece 7 ... Side wall 8 ... Adsorption device 12 ... Excision part PP ... Flat surface

Claims (4)

[Scope of utility model registration request] 1. A base mounted on a flat surface, an arm portion provided on the base with a tip portion protruding from the front surface of the base at a predetermined angle, and a wiring member between the tip portions of the arm portions. It is characterized by comprising a roller rotatably provided in a pulling direction, and an engaging piece which hangs downward from a lower surface position of the base in front of the base and engages with an inner surface of the wiring pipe. Roller device for laying wiring material. 2. A base is provided with a side wall having a plurality of through holes formed therein, and an arm portion having one through hole is rotatably attached to the base, the side wall through hole and the arm portion. 2. The roller device for laying a wiring material according to claim 1, wherein the rotation of the arm portion is restricted by being penetrated by the rod and the through hole. 3. The roller device for laying wiring material according to claim 1, wherein the base comprises an adsorption device. 4. The base comprises a bottomless box body made of sheet metal, and has horizontal edges extending substantially horizontally outward at lower edges of both side surfaces thereof, and a front wall is cut off at a front central portion thereof. The roller device for laying a wiring material according to claim 1 or 2, further comprising a cutting portion formed by the above.