JP2822025B2 - Line tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring tool, and more particularly, to passing a flexible conduit or the like between upper and lower rebars embedded in a ceiling slab of a building or passing a cable through a cable rack. The present invention relates to a wiring tool used when performing a work.

[0002]

2. Description of the Related Art Conventionally, when a flexible conduit is passed between upper and lower rebar groups buried in a ceiling slab of a building, a flexible reader is passed between the upper and lower rebar groups, and the leader of the leader is laid. After connecting the flexible conduit to the rear end, the operation of pulling the leading end of the leader to draw the flexible conduit between the upper and lower rebar groups has been performed. Also, when passing a cable through the cable rack, a nominal line to which the cable is connected is passed through the cable rack using a scaffold, and then the nominal line is pulled to pass the cable through the cable rack.

[0003]

However, in the work using the above-mentioned leader, the worker is forced to bend over on the reinforcing steel bar, so that he is forced to work tiredly, and the work speed is extremely high. There was a problem that it was slow. Further, since the work of passing the cable through the cable rack described above requires the use of a scaffold, there is a problem that the work is not only dangerous but also the installation of the scaffold is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made in consideration of the above circumstances. The purpose is to provide tools.

[0005]

According to a first aspect of the present invention, there is provided a wiring tool having a front end and a rear end of a head connected to a handle at a front portion and a rear portion of a back surface of the head. A front suction surface and a rear suction surface are respectively provided by magnets embedded therein, and a front suction surface adsorbed on the front suction surface and a rear suction surface adsorbed on the rear suction surface. Are provided at both ends, and a connecting portion of a wire is provided on the plate, the front suction surface is sucked to the front suction surface, and the rear suction surface is sucked to the rear suction surface. When adsorbed on the surface and holding the plate piece on the head,
The shape of the head and the shape of the plate piece are determined so that an accommodation space in which a linear material or a rod material is introduced is formed between the head and the plate material between the suction points. A front entrance guide for guiding the linear material or the bar-shaped material to the suction position, immediately before the suction position between the front suction surface and the front suction surface, the rear suction surface; And immediately before the suction point with the rear suction surface,
A rear call-in guide is provided for guiding the linear material or the rod material introduced into the accommodation space to the suction location.

In this wiring tool, when the front suction surface and the rear suction surface on the plate side are respectively attracted to the front suction surface and the rear suction surface on the head side, the plate piece is sucked and held by the head. Then, the suction spot between the front suction face and the front suction face (hereinafter, referred to as “front suction spot”) is closed, and the suction spot between the rear suction face and the rear suction face (hereinafter, “rear suction spot”).
Also close. Here, "the front suction portion is closed" includes a state in which one or all of the front suction surface and the front suction surface are in contact with the other by suction.
The same applies to the meaning of “the rear suction portion is closed”.

[0007] For example, when a force is applied to open the front suction spot when the rear suction spot is closed and the front suction spot is opened, the rear suction spot is not separated and falls off. As long as the rear suction part tries to maintain the closed state of the rear suction part with the attractive force of the magnet acting between the rear suction surface and the rear suction surface, the force that opens the front suction part is released. The front suction portion is closed by the attraction force of the magnet acting between the rear suction surface and the rear suction surface when the operation is performed. In this case, when a suction force by the magnet is acting between the front suction surface and the front suction surface, the suction force helps to close the front suction portion. When the front suction point is closed and the rear suction point is opened by applying a force to open the rear suction point, the same applies as long as the front suction point does not separate and fall off. The action closes the rear suction spot when the force that opens the rear suction spot is released. Also in this case, when a suction force by the magnet is acting between the front suction surface and the front suction surface, the suction force helps to close the rear suction portion.

Therefore, when the head is caused to hold the plate piece by suction, the handle is pulled forward, for example, with the front hooking guide facing the reinforcing bar, and the reinforcing bar is cut into the front sucking portion by the front hooking guide. The front suction point is opened while the rear suction point is closed. Further, when the handle is pulled forward and the reinforcing bar is passed through the front suction portion and introduced into the accommodation space, the front suction portion is closed by the attraction force of the magnet at the rear suction portion. In this case, the attraction force of the magnet at the front suction position helps to close the front suction position. Further, by pulling the handle forward and guiding the rebar from the accommodation space to the rear suction point via the rear entrance guide, the rebar is cut into the rear suction point, and the rear suction point is closed while the front suction point is closed. open. If you pull the handle further forward and let the rebar pass through the rear suction point,
The rear suction point is closed by the attraction force of the magnet at the front suction point. In this case, the attractive force of the magnet at the rear suction location helps to close the front suction location. With this configuration, the wire tool moves forward of the rebar while the plate piece passes under the rebar, and a wire (for example, a nominal wire) connected to the connection portion of the rebar is passed under the rebar.

According to a second aspect of the present invention, there is provided the wire tool according to the first aspect, wherein a portion between the front suctioned surface and the rear suctioned surface of the plate piece has elasticity. It is.

According to this wiring tool, when the front suction portion is opened, the plate piece warps against its elasticity while the rear suction portion is closed, and when the rear suction portion is opened, the front suction portion is bent. The plate piece warps against its elasticity with the location closed. For this reason, when one of the suction points is opened, the other suction point is unlikely to open apart, which is helpful in preventing the plate piece from dropping off from the head during the wiring operation. . In addition, since the plate piece resiliently returns to its original shape due to its elasticity after warping, it is ensured that the suction point once opened is immediately closed when the force for opening the suction point is released. become.

According to a third aspect of the present invention, there is provided a wiring tool according to the first aspect, wherein the plate piece has a front plate portion having the front suction surface and a rear plate surface having the rear suction surface. The front plate and the rear plate are connected to each other via a hinge so as to be able to bend and extend, and the hinge extends the front plate and the rear plate in an extended posture. Thus, a spring body that is constantly biased is provided.

[0012] According to this wiring tool, when the front suction portion is opened, the front plate portion of the plate piece is bent at the hinge against the elasticity of the spring body while the rear suction portion is closed, and the rear portion is closed. When the suction portion is opened, the rear plate portion of the plate piece is bent at the hinge against the elasticity of the spring body while the front suction portion is closed. For this reason, when one of the suction points is opened, the other suction point is unlikely to open apart, which is helpful in preventing the plate piece from dropping off from the head during the wiring operation. . In addition, since the front and rear plate portions of the plate piece resiliently return to the original shape due to the elasticity of the spring body after being bent, the once-opened suction portion is released from the force for opening the suction portion. Make sure it closes instantly when done.

According to a fourth aspect of the present invention, there is provided a wire tool according to any one of the first, second, and third aspects, wherein the front suctioned surface and the rear suctioned surface of the plate piece. Are formed by magnets embedded in the front end and the rear end of the plate piece, respectively, and the front suction surface and the rear suction surface have different polarities. is there.

According to this wiring tool, when the plate is sucked and held by the head at the front suction point and the rear suction point,
The front end of the plate piece always corresponds to the front end of the head, and the rear end of the plate piece always corresponds to the rear end of the head, so that there is no situation in which the plate piece is held by the head in the opposite direction. Therefore, even if the strip falls off from the head during the course of the wiring work, the grip is simply held by the handle and the head is manipulated by the head, so that the strip is sucked and held on the head again. The head is appropriately sucked and held by the head, so that the wire passing operation can be performed subsequently.

According to a fifth aspect of the present invention, there is provided a wiring tool according to any one of the first, second, third, and fourth aspects, wherein one of the head and the plate piece is provided. An engaging and disengaging mechanism comprising a recess formed on the front side and a protrusion formed on the other side and capable of being fitted into and disengaged from the recess is provided immediately before a suction portion between the front suction surface and the front suction surface. And a rear portion of the convex portion of the engagement / disengagement mechanism are provided on an immediately following portion of the suction portion between the rear suction surface and the rear suction surface, and a rear surface of the convex portion of the engagement / disengagement mechanism is an engagement surface. The rear surface is an engaged surface engageable with the engaging surface.

According to the present invention, the plate piece is pushed by a reinforcing bar or the like during the wiring operation, and the front suction portion and the rear suction portion slide, and
As a result, a situation in which the plate piece is displaced rearward of the head is prevented by the engagement between the engagement surface of the projection and the engagement surface of the recess.

According to a sixth aspect of the present invention, there is provided a wiring tool according to any one of the first, second, third, fourth, and fifth aspects, wherein the connecting means is provided on the head. The head is swung right and left around the bolt with respect to the handle via a bolt having a longitudinal axis and a nut screwed into the bolt on a mounting portion provided on the handle. It is connected as much as possible.

According to the present invention, by loosening the nut, the head can swing right and left with respect to the handle, and by tightening the nut, the head cannot swing with respect to the handle. Fixed. Therefore, when performing the wiring work, it is possible to selectively use a state in which the head is swingable and a state in which the head is not swingable, and the usability in the wiring work is improved.

According to a seventh aspect of the present invention, there is provided a wiring tool according to any one of the first, second, third, fourth, and fifth aspects, wherein the connecting means is provided on the head. One part is attached to the handle provided on the handle, through a bolt having a horizontal axis and a nut screwed into the bolt, the head can bend up and down and swing up and down with respect to the handle around the bolt. It is connected to.

According to the present invention, by loosening the nut, the head can freely bend and extend with respect to the handle,
By tightening the nut, the head is fixed to the handle so as not to bend and extend and swing. Therefore, it is possible to selectively use the state in which the head can be flexed and extended and swingable and the state in which the head cannot flex and extend and swing when performing the wiring operation, and the usability in the wiring operation is improved. In addition, when the nut is loosened, the head can be bent so as to overlap the handle, and when the nut is tightened in this state, the head can be fixed to the handle while being folded.

According to an eighth aspect of the invention, there is provided a wire tool according to any one of the first, second, third, fourth, and fifth aspects, wherein the handle is extendable. That is.

According to the present invention, the length of the handle can be adjusted in accordance with the height of the worker, so that the line work can be performed in a walking posture without fatigue. Thus, the usability of the wiring tool is further improved.

[0023]

FIG. 1 is a perspective view showing a head 1 and a plate 3 of a wiring tool according to an embodiment of the present invention, and FIG. 2 shows a structure of an attachment portion between the head 1 and a handle 5. FIG. 3 is a partially broken side view, FIG. 3 is a partially broken side view when the plate 1 is held by the head 1, and FIGS.

As shown in FIG. 1, the head 1 is made of a non-magnetic material such as a synthetic resin and has a long and narrow shape. The head 1 has a swelling portion 11 swelling downward at a front end portion, and a slightly inclined portion 12 at a rear end portion thereof. The swelling portion 11 and the inclined portion 12 are provided with a front suction surface 15 and a rear suction surface 16 for exerting the attractive force of the permanent magnets 13 and 14 embedded in the bulge 11, respectively. At the front end of the head 1, a connecting piece 17 inclined upward is provided. As shown in FIG. 2, the connection piece 17 has a screw insertion hole 1.
8 are provided. Then, the mounting portion 51 of the handle 5 is overlapped with the connection piece 17, and the screw insertion hole 1 of the connection piece 17 is
The nut 21 is screwed into the bolt 19 inserted into the screw insertion hole 52 of the mounting portion 51 and the mounting portion 51. Bolt 19
Has a vertical axis slightly inclined with respect to the vertical direction.
As described above, when the handle 5 is attached to the head 1 by the bolt 19 having the longitudinal axis and the nut 21, when the nut 21 is loosened, the head 1 is swung right and left around the bolt 19 with respect to the handle 5. When the nut 21 is tightened, the head 1 is fixed to the handle 5 so that the head 1 cannot swing.

The plate piece 3 is formed by an elongated synthetic resin plate, and a tongue-shaped connecting portion 33 to which a nominal line 31 is connected via a connecting member 32 is provided at the rear end. . As shown in FIG. 3, the front suction surface 1 is attached to each of the front end and the rear end of the plate 3.
The front suction surface 34 and the rear suction surface 16 described above with respect to FIG.
And a rear suction-receiving surface 35 with respect to.
The front suctioned surface 34 and the rear suctioned surface 35 can also be formed by embedding a magnetic material such as an iron piece in each of the front end and the rear end of the plate 3. However, in this embodiment, the permanent magnets 36 and 37 are formed by being embedded in the front end and the rear end of the plate 3 respectively.

As shown in FIG. 3, the above-mentioned plate piece 3 has its front suction surface 34 adsorbed on the front suction surface 15 on the head 1 side and its rear suction surface 35 on the head 1 side. The head 1 is held by being sucked to the rear suction surface 16. In this case, the front suctioned surface 35 on the plate 3 side is
The front suction surface 15 and the rear suction surface 16 on the side can be sucked, and the rear suction surface 36 on the plate piece 3 side can be either the front suction surface 15 or the rear suction surface 16 on the head 1 side. It is not preferable that the plate piece 3 is held by the head 1 even if the front and rear sides of the plate piece 3 are reversed. In order to avoid this, in this embodiment, as described above, the magnets in which the front suctioned surface 34 and the rear suctioned surface 35 are embedded in the front end and the rear end of the plate 3 respectively. Formed by
In addition, the front suction surface 34 and the rear suction surface 35 have different polarities. In such a case, the front suction surface 1 on the head 1 side
It is necessary to make both 5 and the rear suction surface 16 have different polarities. This relationship is, for example, that the front suction surface 15 on the head 1 side is an N pole, the rear suction surface 16 is an S pole, the front suction surface 34 on the plate piece 3 side is an S pole, Adsorbed surface 35
To the north pole. In this way, when the plate 3 is sucked and held by the head 1, the front-back direction of the plate 3 always coincides with the front-back direction of the head 1. In addition, the plate piece 3 placed on the floor or the like is manipulated so as to be rolled by the head 1 so that the plate piece 3 is sucked and held by the head 1, and the plate piece 3 matches the head 1 in the front-rear direction. Then, it is held by suction.

As shown in FIG. 3, when the head 1 holds the plate 3 by suction, the front suction surface 34 on the plate 3 and the front suction surface 15 on the head 1 are the suction points. The head 1 and the plate piece 3 surround a portion between the partial suction point F and a rear suction point R, which is a suction point between the rear suction surface 35 on the plate piece 3 side and the rear suction surface 16 on the head 1 side. An enclosed storage space S is formed. The accommodation space S has an area capable of penetrating, in the left-right direction, a linear material such as rebars 81 and 82, horizontal beams 91 and hanging bolts 92 of the cable rack 9, and transmission and distribution lines, which will be described later. . In order to form the accommodation space S, the space between the bulging portion 11 and the inclined portion 12 on the head 1 side is formed into a concave shape, and the front suction surface 34 and the rear suction surface on the plate 3 side. A portion between the flat portion 38 and the flat portion 35 is formed. Further, since the flat portion 38 is made thin, elasticity specific to the synthetic resin forming the plate 3 is imparted to the flat portion 38.

As shown in FIG. 3, a front entrance guide 41 is provided immediately before the front suction point F.
The front call-in guide 41 is provided on the bulging portion 11 on the head 1 side.
, And a rearwardly inclined tongue piece 43 provided at the front end of the plate piece 3. This front calling guide 41
This is useful for guiding the reinforcing bars 81, 82 and the like described above at the front suction point F. On the other hand, a rear entrance guide 45 is provided immediately before the rear suction point R. The rear call-in guide 45 is formed by a rearwardly inclined surface 46 formed by the inner surface of the inclined portion 12 on the head 1 side and an upper surface 47 of the flat portion 38 of the plate 3. The rear entrance guide 45 is useful for guiding the linear material such as the above-mentioned reinforcing bars 81 and 82 introduced into the accommodation space S to the rear suction spot R.

In FIGS. 1 and 3, reference numeral 6 denotes an engagement / disengagement mechanism. The engagement / disengagement mechanism 6 includes a concave portion 61 formed on the head 1 side and a convex portion 62 formed on the plate piece 3 side. is there.
The rear surface of the convex portion 62 is formed as an engagement surface 63, whereas the rear surface of the concave portion 61 is formed as an engagement surface 6.
3 is formed as an engaged surface 64 which can be engaged with. As is clear from FIG.
Are provided immediately before the front suction point F and immediately after the rear suction point R, respectively. These engaging and disengaging mechanisms 6 are provided so that the plate 3 sucked and held by the head 1 is positioned rearward. Even if it is pushed, the front suction point F and the rear suction point R slip and the plate piece 3 is prevented from being displaced rearward of the head 1. In addition, the convex portion is provided on the head side,
The concave portion may be provided on one side of the plate.

Next, as can be inferred from FIGS. 4 to 7, the handle 5 is extendable and contractible. The mechanism for expanding and contracting the handle 5 may be of a folding type or an extension type. In this embodiment, a plurality of pipes of different diameters are slidably fitted to each other. In addition, a so-called telescopic telescopic mechanism in which fastening rings 53 and 54 for fixing a slide position to each pipe member are employed.

FIG. 11 is a schematic partial perspective view of a group of reinforcing bars 8, 8 arranged vertically close for a ceiling slab of a building.
FIG. 2 is a schematic partial perspective view of a cable rack 9 suspended from a ceiling. A flexible conduit (not shown) or the like is passed between the upper and lower rebar groups 8, 8 in FIG.
The above-described wiring tool is preferably used when a cable is passed through the cable or when a new transmission and distribution line is installed above the existing transmission and distribution line.

Next, with reference to FIGS. 4 to 7, a nominal wire 3 having a flexible conduit connected between the upper and lower rebar groups 8, 8 in FIG.
A description will be given of the work of passing a wire when passing 1. 4 to 7.
In FIG. 11, two adjacent reinforcing bars belonging to the upper reinforcing bar group 8 of the upper and lower reinforcing bar groups 8 in FIG.

In this wiring work, after adjusting the length of the handle 5 according to the height of the worker, the front call-in guide 41 is made to face the reinforcing bar 81 as shown in FIG. When the line tool is advanced while walking forward on the group 8, the plate pieces 3 pass under the reinforcing bars 81, 82 lined up one after another, and are connected to the plate pieces 3 following them. Nominal line 31 is passed under reinforcing bars 81 and 82.

That is, as shown in FIG. 4, when the front call-in guide 41 faces the reinforcing bar 81 and the handle 5 is pulled forward,
As shown in FIG. 5, the reinforcing bar 81 is guided to the front suction spot F by the front entrance guide 41, interrupts the front suction spot F, and opens the front suction spot F. At this time, the rear suction point R remains closed, and the front side of the plate piece 3 warps downward with a bending deformation against the elasticity of the flat portion 38. When the handle 5 is further pulled forward from the state of FIG. 5 as indicated by an arrow, the reinforcing bar 81 passes through the front suction point F and the storage space S between the head 1 and the plate piece 3 as shown in FIG.
The rebar 81 is inserted into the rear
Face 5. Further, when the reinforcing bar 81 passes through the front suction point F, the flat portion 38 of the plate piece 3 is restored by elasticity. F closes. When the handle 5 is further pulled forward as indicated by an arrow, the reinforcing bar 81 is guided to the rear suction point R by the rear entrance guide 45 and interrupts the rear suction point R, as shown in FIG. open. At this time, the front suction point F remains closed, and the rear side of the plate 3 warps downward with a bending deformation against the elasticity of the flat portion 38. When the handle 5 is further pulled forward from the state of FIG.
Passes through between the rear suction surface 16 and the rear suction surface 35, and then another reinforcing bar 82 faces the front entrance guide 41, and the above-described operation is repeated.

Accordingly, the operator simply moves the wire tool forward while holding the handle 5 by hand, and the plate pieces 3 pass under the reinforcing bars lined up one after another one after another, and 31 is passed under the reinforcing bar group 8. The flexible conduit, electric wire, and the like connected to the nominal line 31 pass through the nominal line 31 under the reinforcing bar group 8 and are laid under the reinforcing bar group 8 by pulling the nominal line 31.

If the plate 3 falls off from the head 1 during the above-mentioned wire passing operation and drops, the user holds the handle 5 by hand and manipulates the plate 3 that has fallen off with the head 1. If the plate 3 is sucked and held by the head 1 again, the front-back direction of the plate 3 naturally matches the front-back direction of the head 1. Therefore, it is possible to continuously perform the wiring work.

Also, during the wire passing operation, the plate piece 3 sucked and held by the head 1 is pushed by the reinforcing bar 81, and the front suction spot F and the rear suction spot R try to slide. Is reliably prevented by the engaging / disengaging mechanism 6 before or after.

Further, since the head 1 can be swung and the head 1 can be fixed to the handle 5, it is possible to swing the head if necessary. It is possible to perform the wiring work while the head 1 is fixed, thereby improving the usability during the wiring work. For example, there is a case where the worker only has to walk facing downward, such as a case where the call line 31 is passed under the reinforcing bar group 8 as shown in FIG. 8, and a case where the cable rack 9 shown in FIG. Hanging bolt 9
In the case where the worker needs to walk upward, as in the case where the call line 31 is passed through the inside of 2 or on the cross beam 91,
There are cases where it is better to make the head 1 swingable and cases where it is better to fix the head 1 to the handle 5. In these cases, the degree of tightening of the nut 21 should be adjusted appropriately. If the adjustment is made, the usability and workability of the wiring tool are improved, and the operator is less likely to be tired.

Further, the above-mentioned wiring tool can be suitably used when a new transmission and distribution line is passed over an existing transmission and distribution line.

FIG. 8 is a perspective view showing a plate 3 and the like used in a wiring tool according to another embodiment of the present invention, and FIG.
FIG. 4 is a partially cutaway side view corresponding to FIG.

The plate piece 3 shown in FIGS. 8 and 9 is divided into a front plate portion 3A having a front suction surface 34 and a rear plate portion 3B having a rear suction surface 35. Those front plate parts 3A
And the rear plate 3B are flexibly connected to each other via a hinge 100 which is a hinge. The hinge 100 has a spring body 120 formed of a torsion coil spring held in a state of being fitted to the fulcrum shaft 110, and a support piece 121 at one end of the spring body 120 is attached to one end of the hinge 100. Piece 11
1 and the support piece 122 on the other end side is in elastic contact with the other mounting piece 112. Note that one of the mounting pieces 11
1 is fixed to the front plate 3A with a set screw (not shown) on the front plate 3A, and the other mounting piece 112 is fixed to the rear plate 3B with a set screw (not shown) on the rear plate 3B. . In such a plate piece 3, the front plate portion 3 </ b> A and the rear plate portion 3 </ b> B
Due to the elasticity of the elastic member 20, it is constantly urged so as to assume the extended posture shown in FIGS. In addition, the extending | stretching attitude | position of the plate piece 3 is regulated by the end surface of the front plate part 3A and the end surface of the rear plate part 3B hitting.

In the plate piece 3 shown in FIGS. 8 and 9, the other items are the same as those described with reference to FIGS. 1 to 3 and the like. The detailed description is omitted.

In the wiring tool using the plate piece 3 shown in FIGS. 8 and 9, when the front suction point F is opened, the front plate part 3A of the plate piece 3 is kept in a spring state while the rear suction point R is closed. Bending downward at the hinge 100 against the elasticity of the body 120, and when the rear suction point R is opened, the rear plate 3B of the plate piece 3 It bends downward at hinge 100 against elasticity. In addition, since the front plate portion 3A and the rear plate portion 3B of the plate piece 3 are elastically returned to the original shape after being bent, the suction portions F and R which have been opened once are absorbed by the suction portions F and R. Ensures immediate closure when the force to open the location is released. For this reason, FIG.
The same wiring work as that described with reference to FIG. 7 can be performed.

FIG. 10 is a side view showing a modification of the structure of the mounting portion between the head 1 and the handle 5. As shown in FIG. In FIG.
The connecting piece 17 provided on the vertical bracket 17a
It has. On the other hand, the mounting portion 51 provided on the handle 5 is superposed on the bracket 17a in the lateral direction,
A bolt 57 having a horizontal axis is inserted into the overlapping portion, and a wing nut 58 is screwed into the bolt 57. Therefore, the head 1 is connected to the handle 5 around the bolt 57 so as to be able to bend and extend up and down as indicated by an arrow X. By doing so, the head 1 can be freely bent and oscillated with respect to the handle 5 by loosening the wing nut 58, and the head 1 can be bent and oscillated with respect to the handle 5 by tightening the wing nut 58. Fixed to impossible. Therefore, when performing the wiring work, it is possible to selectively use the state in which the head 1 can flex and extend and swing, and the state in which the head 1 cannot flex and extend, and the usability in the wiring work is improved. In addition, when the nut 47 is loosened, the head 1 can be bent so as to overlap with the handle 5 as shown by the solid line in the figure, and the head 1 can be folded while tightening the wing nut 58 in this state. It can be fixed to the handle 5. When the head 1 is bent so as to overlap with the handle 5 in this manner, the handle 5 is extendable and contractible, so that the communication tool can be carried in a compact form.

[0045]

According to the present invention, it is possible to reduce the amount of time required for passing a flexible conduit through a group of reinforcing bars for a ceiling slab or passing a cable through a cable rack to a normal walking speed. This can be done safely while walking at a close speed and without using a scaffold, and furthermore, there is an effect that the fatigue of the worker due to the work of passing the wire is reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a head and a plate piece of a wiring tool according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing a structure of an attachment portion between a head and a handle.

FIG. 3 is a partially broken side view when a plate piece is held by a head.

FIG. 4 is an explanatory view of a state in which a reinforcing bar faces a front call-in guide;

FIG. 5 is an explanatory diagram of a state in which a reinforcing bar is inserted into a front suction position.

FIG. 6 is an explanatory diagram of a state in which a reinforcing bar has passed through a front suction portion.

FIG. 7 is an explanatory diagram of a state in which a reinforcing bar is interrupted by a reinforcing bar at a rear suction position.

FIG. 8 is a perspective view showing a plate piece and the like used for a wiring tool according to another embodiment of the present invention.

FIG. 9 is a partially cutaway side view corresponding to FIG. 3 of a wiring tool using the plate piece 3 of FIG. 8;

FIG. 10 is a side view showing a modification of the structure of the mounting portion between the head and the handle.

FIG. 11 is a schematic partial perspective view of a group of reinforcing bars for a ceiling slab.

FIG. 12 is a schematic partial perspective view of a cable rack.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 head 3 plate piece 3A front plate portion 3B rear plate portion 5 handle 6 engaging and disengaging mechanism 13, 14 permanent magnet (magnet) 15 front suction surface 16 rear suction surface 17 connecting piece portion 19 bolt 21 having a longitudinal axis 21 nut 31 Line 33 Connecting part 34 Front attracted surface 35 Rear attracted surface 41 Front calling guide 45 Rear calling guide 51 Mounting part 57 Bolt having horizontal axis 58 Wing nut (nut) 61 Recessed part 62 Convex part 63 Engaging surface 64 Engaged surface 81, 82 Reinforcing bar (bar) 100 Hinge 120 Spring body S Housing space F Front suction spot R Rear suction spot

Claims (8)

(57) [Claims] 1. A front suction surface and a rear suction surface formed by magnets embedded in front and rear ends of a back surface of a head connected to a handle, respectively. Are provided separately, and a plate piece having, at both ends, a front suction face adsorbed on the front suction face and a rear suction face adsorbed on the rear suction face, and the plate piece has When the connecting portion of the wire is provided, the front suction surface is sucked to the front suction surface, and the rear suction surface is sucked to the rear suction surface, and the plate piece is held by the head. In addition, the shape of the head and the shape of the plate piece are so set that an accommodation space in which a linear material or a rod material is introduced is formed between the head and the plate material between the suction points. Immediately before the suction point between the front suction surface and the front suction surface. The front portion has a front entrance guide for guiding the linear material or the bar material to the suction position, and is introduced into the accommodation space immediately before the suction position between the rear suction surface and the rear suction surface. A wiring tool comprising a rear entrance guide for guiding the linear or rod-shaped material to a suction position. 2. The wiring tool according to claim 1, wherein a portion of the plate piece between the front suctioned surface and the rear suctioned surface has elasticity. 3. The plate piece is divided into a front plate portion having the front suctioned surface and a rear plate portion having the rear suctioned surface,
The front plate portion and the rear plate portion are connected to each other via a hinge so as to be able to bend and extend, and the hinge constantly biases the front plate portion and the rear plate portion so as to be in the extended position. 2. The wire passing tool according to claim 1, further comprising a body. 4. The front suctioned surface and the rear suctioned surface of the plate piece are formed by magnets embedded in a front end portion and a rear end portion of the plate piece, respectively. Wherein the front suction surface and the rear suction surface have different polarities.
A wire tool according to any one of claims 2 and 3. 5. An engaging and disengaging mechanism comprising a concave portion formed on one side of the head and the plate piece and a convex portion formed on the other side and removably fitted in the concave portion, A portion immediately before the suction portion between the front suction surface and the front suction surface, and a portion immediately after the suction portion between the rear suction surface and the rear suction surface, respectively. The back surface of the projection is an engagement surface, and the back surface of the recess is an engagement surface engageable with the engagement surface. Communication tool according to any of the above. 6. The connecting piece provided on the head is connected to a mounting part provided on the handle via a bolt having a longitudinal axis and a nut screwed into the bolt, and the head is rotated around the bolt. The wire tool according to any one of claims 1, 2, 3, 4, and 5, wherein the tool is connected to the handle so as to swing right and left. 7. The connecting piece provided on the head is connected to a mounting portion provided on the handle via a bolt having a horizontal axis and a nut screwed into the bolt, and the head is rotated around the bolt. Wherein the handle is connected to the handle so as to be able to swing up and down and up and down.
A wiring tool according to any one of claims 4 and 5. 8. The wiring tool according to claim 1, wherein the handle is extendable.