JP7168932B2 - Cable rack connection method and transport device used for it - Google Patents

Description

The present invention relates to a cable rack connection construction method and a conveying apparatus used therein, which can sequentially convey and connect cable racks for connection using existing cable racks when connecting a plurality of cable racks in the longitudinal direction. It is about.

For example, when connecting a cable rack from a lower floor to an upper floor, conventionally, it is necessary to transport the cable rack for connection to the upper floor in advance. In this case, long-span elevators, cranes, etc. are installed in advance, and cable racks for connection are temporarily placed on each upper floor using these. When connecting the cable racks on each floor, the temporarily placed cable racks are moved to the connection location by a cart or the like.

Patent Literature 1 describes a cargo unloading device in which guide rails are provided on the wall surface of a building. This unloading device is configured so that a load unloaded on each floor along a guide rail can be transported to an arbitrary location by transport rollers.

The lift device described in Patent Literature 2 is a device for transporting panel-like articles between the lower floors and upper floors of a building. In this device, a rail unit that passes through an opening in the floor from the lower floor to the upper floor is erected vertically, and panel-shaped articles such as sashes, shoji windows, and board materials are placed on the lifting platform that moves along this rail unit. It is a device that raises and lowers.

Japanese Patent No. 3376383 Japanese Patent No. 6271975

Conventional transport devices such as unloading devices and lift devices can transport from lower floors to upper floors, but the height that can be transported in one operation is limited to the height of each transport device. rice field.

That is, the conventional conveying device conveys from the lower floor to the upper floor of the destination by the previously installed conveying device. Therefore, in order to transfer from the destination floor to a higher floor, it is necessary to dismantle the already installed transfer device once and re-install it on the upper floor.

As described above, since the height that can be conveyed by the conventional conveying apparatus is limited to the height of each conveying apparatus, it was impossible to continuously convey from the conveyed floor to the upper floor. . As a result, in order to connect cable racks to high-rise floors of buildings, the current situation is to use transportation equipment such as long-span elevators and cranes to temporarily place cable racks for connection on each floor in advance. . However, since these transporting equipments are common facilities for transporting construction materials in general, there is an inconvenience that their use is restricted by the work of other contractors.

Moreover, when connecting cable racks that have been temporarily placed in advance on each floor, they are transported from the place of temporary placement to the connection place by a trolley. At this time, if other materials and equipment are temporarily placed around the temporarily placed cable rack, it becomes difficult to move the long cable rack.

In this way, in order to continuously connect cable racks, repeating installation and dismantling using a conventional conveying device is a labor intensive task. In addition, there are restrictions on the use of shared transportation equipment, and a lot of work is required.

Therefore, the present invention has been created to solve the above-mentioned problems, and by utilizing already installed cable racks without repeating the installation and dismantling of the conveying device, the work of conveying cable racks for connection can be performed. It is an object of the present invention to provide a cable rack connection construction method and a conveying device for use in the method, which can perform cable rack connection work extremely easily.

In order to achieve the above object, the first means of the present invention is a conveying device used in a cable rack connection construction method in which the flanges of the main girder P1 of the cable rack P having a substantially channel steel cross section are used as the conveying rails P2. A roller body 2 provided with a roller 2A that moves along the transport rail P2, with the flange of the main girder P1 of the existing cable rack P on the side not in contact with the child girder P3 being the transport rail P2 . , a movable platform 3 fixed to the roller body 2 and provided slidably along the transport rail P2, and a traction rope 4 for pulling the movable platform 3, and a connection cable rack P attached to the transport device 1. is transported along the existing cable rack P, and the transport device 1 is provided with a return prevention tool 5 that swings in one direction. It is configured such that when it comes into contact with the slave girders P3 in the direction opposite to the conveying direction, it is locked to the slave girders P3 without swinging .

In the second means, a conveying device used in a cable rack connection method using a flange of a main girder P1 of a cable rack P having a substantially channel steel cross section as a conveying rail P2,
Of the flanges of the main girder P1 of the existing cable rack P, the flange on the side not in contact with the sub girder P3 is used as a conveying rail P2, and a roller body 2 provided with a roller 2A that moves along the conveying rail P2, and the roller body 2 and is provided slidably along the transport rail P2, and a traction rope 4 for pulling the movable platform 3. The cable rack P for connection attached to the transport device 1 is attached to the existing cable. A locking member 6 is provided for conveying along the rack P and for locking the cord P3 of the cable rack P for connection to the conveying device 1 .

The roller body 2 of the third means is composed of a connecting rod 2B constructed between the main girders P1 of the existing cable rack P and the rollers 2A provided at both ends of the connecting rod 2B. The frame 3 has a shape in which two parallel vertical members 3A are connected by a horizontal member 3B, and the roller bodies 2 are attached to the front and rear of the vertical member 3A .

In the fourth means, a cable rack connection method using a flange of a main girder P1 of a cable rack P having a substantially channel steel cross section as a transport rail P2, wherein transport slides along the transport rail P2. An installation step 100 for installing the device 1 on the base end side of the existing cable rack P, a locking step 200 for locking the cable rack P for connection to the conveying device 1, and conveying the locked cable rack P together. A conveying step 300 of pulling the device 1 and slidingly conveying it to the connecting end side, and a connecting step 400 of connecting the cable rack P, which is locked to the conveying device 1 on the connecting end side, to the existing cable rack P. and a resetting step 500 of removing the conveying device 1 from the connected cable rack P and then returning it to its original position along the conveying rail P2 .

In the fifth means, the conveying device 1 is provided with a return prevention member 5 that swings in one direction, and when the return prevention member 5 comes into contact with the child girder P3 in the conveying direction, it swings and moves away from the child girder P3. It is a method of connecting so that when it separates and abuts on the daughter girder P3 in the opposite direction to the transport direction, it will not swing and will be locked to the daughter girder P3.

As in the present invention, the main girder P1 of the existing cable rack P having a substantially channel-shaped steel cross section is used as the transport rail P2, and the cable rack for connection is transported to the connection point and connected to the cable rack. The connection work of P no longer requires a large-scale transportation device or temporary placement work on each floor.

Moreover, since the cable rack P for connection can be transported in a state in which it is superimposed on the existing cable rack P, the transportation space is extremely small, and the cable rack P can be transported using a slight gap. Become.

Furthermore, in the connection step 400 in which the cable rack P is connected to the existing cable rack P while being locked to the conveying device 1, the connection work can be performed while the cable rack P to be connected is pulled by the traction rope 4. can. Therefore, the work of connecting the cable rack P becomes extremely easy.

The transporting step 300 is a step of transporting by pulling the traction rope 4 connected to the transporting device 1 by mechanical traction or human traction, so mechanical traction or human traction is selected according to the construction site. can do.

Moreover, since the transporting process 300 is a transporting process 300 for transporting the cable rack P in the vertical direction or a process for transporting the cable rack P in the horizontal direction, for example, vertical connection work along the elevator hall, It is possible to perform extremely efficient work in the horizontal connection work installed inside.

The conveying device 1 of the present invention comprises a roller body having rollers 2A that move along the conveying rails P2, with the flanges of the main girders P1 of the existing cable rack P having a substantially channel-shaped steel cross section being used as the conveying rails P2. 2, a moving platform 3 that is slidably provided along the transport rail P2 by the roller body 2 and transports the connecting cable rack P, and a traction rope 4 that pulls the moving platform 3. It has a very simple structure. Therefore, when connecting the cable rack P along the longitudinal direction, a large-scale transport device such as a conventional unloading device or a lift device is completely unnecessary, and the cable rack P can be easily transported even by manual work. Become.

Moreover, since the conveying rail P2 uses the flange of the main girder P1 of the existing cable rack P that is not in contact with the child girder P3 as the conveying rail P2, it is not obstructed by members such as the child girder P3 and rack hangers. The conveying device 1 can be smoothly conveyed to the connection end without any trouble. As a result, the work of transporting the cable rack P is rationalized, and the work of repeatedly installing and dismantling the transporting device as in the past is no longer necessary.

Furthermore, since the transport device transports the connection cable rack P that is locked to the transport device 1 along the existing cable rack P, the connection cable rack P is temporarily placed on each floor or the like as in the conventional art. No need. As a result, there is no need to use shared facilities such as long-span elevators and cranes, so the construction period can be significantly shortened.

Further, the roller body 2 is composed of a connecting rod 2B constructed between the main girders P1 of the existing cable rack P and the rollers 2A provided at both ends of the connecting rod 2B. Two vertical members 3A are connected by a horizontal member 3B, and the roller bodies 2 are attached to the longitudinal sides of the vertical members 3A. It has the advantage of being lightweight and facilitating the transportation work.

The conveying device 1 is provided with a return preventing member 5 that swings in one direction, and when the return preventing member 5 comes into contact with the child girder P3 in the conveying direction, it swings away from the child girder P3 and moves in the direction opposite to the conveying direction. Therefore, even if the movable platform 3 towed in the vertical direction comes off the traction rope 4, the movable platform 3 prevent it from falling to the bottom. This allows safe use.

Since the carrier device 1 is provided with the locking tool 6 for locking the cable rack P for connection, the work of locking the cable rack P for connection to the carrier device 1 is facilitated.

(a) to (c) are schematic diagrams showing a part of the steps of the construction method of the present invention. (a) and (b) are schematic diagrams showing a part of the steps of the construction method of the present invention. It is a block diagram which shows all the processes of this invention construction method. It is a perspective view which shows the conveying apparatus of this invention apparatus. It is a perspective view which shows the state which mounted|wore the existing cable rack with the conveying apparatus. FIG. 4 is a perspective view showing a state in which the connection cable rack is locked to the conveying device; FIG. 11 is a bottom view of a main part showing a state in which the rollers of the roller body are fitted to the transport rails of the existing cable rack; FIG. 10 is a plan view showing a state in which the rollers of the roller body are fitted to the transport rails of the existing cable rack; FIG. 5 is a side view showing a state in which the rollers of the roller body are fitted to the transport rails of the existing cable rack; FIG. 4 is a cutaway perspective view showing a connecting cable rack locked to a transport device; It is a partially notched perspective view which shows the usage body of a return prevention tool. FIG. 4 is a schematic diagram showing a state in which cable racks are horizontally connected;

The cable rack connection method of the present invention is a cable rack connection method for connecting cable racks P having a substantially channel-shaped cross section along the longitudinal direction. In particular, it is a construction method that uses the flange of the main girder P1 of the existing cable rack P as the transport rail P2, and includes an installation process 100, a locking process 200, a transport process 300, a connection process 400, and a reset process 500 (Fig. 3).

In the present invention, the cable rack P refers to a ladder-type cable rack in which a plurality of child girders P3 are passed between the main girders P1. Further, the structure of the main girder P1 is a structure in which the cross section has a substantially channel steel shape having a pair of flanges, and a sub girder P3 is fixed to one of the flanges (see FIG. 7).

In the present invention, of the pair of flange portions, the flange that is not in contact with the cord P3 is used as the conveying rail P2 (see FIGS. 7 and 8). By selecting this flange as the transport rail P2, it is possible not only to avoid contact with the sub-girder P3, but also to connect any number of cable racks P without being hindered by other members such as couplings. can be maintained.

That is, when the cable rack P is connected in the longitudinal direction or when the cable rack P is erected, various fixtures may be attached to the outer surface of the main girder P1. However, various members are not attached to the flange selected as the transport rail P2, and the end of the flange in particular remains free. Moreover, when the cable rack P is connected, this flange is also extended like one rail, so that it has a very effective function as the transport rail P2. Therefore, the flange on the side that is not in contact with the sub-beam P3 is used as the conveying rail P2.

In the connection construction method of the present invention, a cable rack P 1 serving as a starting point is installed, and this existing cable rack P is used for transportation (see FIG. 1(a)). That is, the installation step 100 is a step of installing the conveying device 1 on the base end side of the existing cable rack P (see FIG. 1(b)). Further, a locking step 200 is a step of locking a new cable rack P for connection to the conveying device 1 that has been installed (see FIG. 1(C)).

Next, the transporting step 300 is a step of slidingly transporting the transporting device 1 together with the attached cable rack P to the connection point (see FIG. 2(a)). In this transporting process 300, for example, the transporting device 1 can be transported by either mechanical traction using a winch 7, a crane, or the like, or manual human traction.

Further, for the transporting process 300, it is possible to select the transporting process 300 for transporting the cable rack P in the vertical direction or the transporting process 300 for transporting the cable rack P in the horizontal direction.

That is, in the transporting step 300 for transporting the cable rack P in the vertical direction, for example, when arranging the cable rack P on each floor of a building, the cable rack P is transported from the lowest floor to the upper floors ( 1 and 2).

In the transporting process 300 for transporting the cable rack P in the horizontal direction, for example, the cable rack P is transported by a lateral connection work installed inside a utility tunnel (see FIG. 12). In this manner, the transport process 300 can be arbitrarily selected from vertical transport, horizontal transport, and the like.

Then, the cable rack P for connection transported in the transporting step 300 is connected to the existing cable rack P in the connecting step 400 at the connection point (see FIG. 2(b)). In particular, when moving from the transporting process 300 to the connecting process 400, the cable rack P can be connected to the existing cable rack P while being suspended from the transporting device 1 (Fig. )reference).

In the final reset step 500, the transfer device 1 is removed from the connected cable rack P and returned to its original position along the transfer rail P2 of the connected cable rack P (see FIG. 2(b)). By repeating these steps, the existing cable racks P are utilized while the cable racks P for connection are sequentially transported and connected.

The conveying apparatus of the present invention is the conveying apparatus 1 used in the cable rack connection construction method described above. That is, the conveying device 1 of the present invention includes a roller body 2, a moving platform 3, and a traction rope 4 (see FIG. 4). The conveying device 1 of the illustrated example further includes a return prevention member 5 and a locking member 6 .

The roller main body 2 is a member provided with a roller 2A that engages and moves with the end of the transport rail P2 (see FIG. 7). The roller main body 2 shown in the figure is provided with rollers 2A made of synthetic resin at both ends of a connecting rod 2B installed between the main girders P1 (see FIG. 4). The rollers 2A are arranged in pairs along the outer edge of a rectangular base 2C fixed to both ends of the connecting rod 2B (see FIG. 4). This base 2C is also in contact with the child girder P3 of the cable rack P for connection (see FIG. 10). Further, at both ends of the connecting rod 2B, a slip prevention tool 2D having a planar L shape is provided in order to prevent the connection cable rack P engaged with the moving frame 3 to be described later from slipping to the left or right. (See FIG. 7).

In order to attach the transport device 1 to the existing cable rack P, the roller 2A of the roller main body 2 is engaged from the free end side of the transport rail P2 and is slid to the cable rack P at the base end. In the illustrated example, when the tip of the conveying rail P2 is engaged with the groove of each roller 2A, the roller main body 2 will not come off from the conveying rail P2 (see FIG. 5). Therefore, when attaching and detaching the conveying device 1 having the roller body 2 to and from the existing cable rack P, it is always necessary to attach and detach from the open end side of the conveying rail P2 at the connecting end of the cable rack P. . Incidentally, the configuration of the roller body 2 is not limited to the illustrated example and can be changed.

The movable platform 3 is a ladder-like member fixed to the roller body 2 (see FIG. 4). A basic structure of the conveying device 1 is obtained by fixing the moving frame 3 and the roller body 2 . The mobile platform 3 is formed in a size that can be placed inside the main girder P1, and in the illustrated example, has a ladder shape in which horizontal members 3B are fixed to two vertical members 3A at regular intervals ( See Figure 5). And it is the structure which mounted|wore the roller main body 2 before and behind the longitudinal member 3A. The configuration of this mobile platform 3 can also be changed arbitrarily.

The conveying apparatus 1 of the present invention attaches the conveying apparatus 1 to an existing cable rack P (see FIG. 5), and conveys the cable rack P in a locked state to the conveying apparatus 1 (see FIGS. 8 and 9). At this time, since the conveying device 1 is interposed between the existing cable rack P and the cable rack P for connection, the state becomes so compact that the cable racks P appear to be stacked (see FIG. 9). When the cable rack P for connection is transported in this state, it moves as if the cable rack P for connection is sliding on the existing cable rack P.

The traction rope 4 is a string-like member for pulling the conveying device 1, and can be made of any material such as a wire rope, a synthetic resin material, a natural fiber rope, or the like. This pulling rope 4 is connected to the conveying device 1 and pulled to the destination.

In order to pull the conveying device 1 with the traction rope 4, connecting the traction rope 4 to the eyebolt 3C provided on the tip side of the moving platform 3 as shown in the figure facilitates the connection of the traction rope 4 (see FIG. 4). To transport the cable rack P in the horizontal direction, the traction rope 4 is connected to the cable rack P connection side of the movable platform 3, and the return rope 8 is connected to the opposite side (see FIG. 12). Then, the return rope 8 is used to return the conveying device 1, which has been pulled to the connection end of the cable rack P by the tow rope 4, to its original position. In addition to conveying the cable rack P, the conveying device 1 can also convey articles such as cable extensions and tools.

The anti-return tool 5 protrudes from the movable platform 3 and swings in one direction at a portion where it abuts on the cord P3 of the existing cable rack P (see FIG. 4). That is, when the anti-return tool 5 abuts on the existing sub-beam P3 in the conveying direction, the anti-return tool 5 swings away from the sub-beam P3. In addition, when the anti-return tool 5 comes into contact with the existing slave girder P3 in the direction opposite to the conveying direction, the anti-return tool 5 is locked to this slave girder P3 without swinging. Therefore, if the traction rope 4 comes off and the conveying device 1 falls, the return prevention member 5 is engaged with the existing cord P3 to prevent the conveying device 1 from falling.

The illustrated anti-return device 5 comprises a locking body 5A swingably connected to the vertical member 3A of the movable platform 3, and a restricting body 5B fixed to the vertical member 3A on the conveying direction side of the locking body 5A. provided (see FIG. 4). Furthermore, it is provided with a spring body 5C that connects the restricting body 5B and the locking body 5A (see FIG. 11).

The illustrated example shows a state in which the movable platform 3 has moved in the opposite direction (downward) to the transport direction (see FIG. 11). In this state, the locking body 5A is locked to the sub-beam P3 of the existing cable rack P to stop the movable platform 3. As shown in FIG. Also, when the movable platform 3 moves again in the conveying direction, the locking body 5A comes into contact with the next existing slave girder P3, but the locking body 5A swings away from this slave girder P3, so that it moves in the conveying direction. continues. Furthermore, the locking body 5A is lifted up to a position where it contacts the child beam P3 again by the action of the spring body 5C.

The locking tool 6 is a member that locks the cable rack P for connection to the conveying device 1 . The illustrated locking member 6 protrudes from the connecting rod 2B of the roller body 2 in the direction of the cable rack P for connection, and has a flat plate shape for holding the stringer P3 of the cable rack P for connection (see FIG. 5). ). The locking member 6 is configured such that the locking piece 6A is detachably attached to the connecting rod 2B of the roller body 2 with a connecting bolt 6B and a connecting nut 6C (see FIG. 10).

In order to lock the cable rack P with this locking tool 6, it is a simple work of locking the slave girders P3 of the connection cable rack P to the locking tool 6. As shown in FIG. As a result, the spar P3 of the cable rack P for connection overlaps the upper surface of the connecting rod 2B of the roller body 2, and the displacement prevention tool 2D prevents the cable rack P from moving to the left or right (see FIG. 7).

The shape and the like of the present invention are not limited to the illustrated example, and the structure of the roller body 2 and the moving frame 3 can be freely changed within the scope of the present invention.

P Cable rack P1 Master girder P2 Conveying rail P3 Sub girder 1 Conveying device 2 Roller body 2A Roller 2B Connecting rod 2C Base 2D Anti-slip device 3 Moving platform 3A Vertical member 3B Horizontal member 3C Eyebolt 4 Traction rope 5 Return prevention device 5A Locking Body 5B Regulating body 5C Spring body 6 Locking tool 7 Winch 8 Return rope 100 Installation process 200 Locking process 300 Transfer process 400 Connection process 500 Reset process

Claims (5)

A conveying device used in a cable rack connection method using a flange of a main girder of a cable rack having a substantially channel steel cross section as a conveying rail,
Of the flanges of the main girder of the existing cable rack, the flange on the side that is not in contact with the sub girder is used as a transportation rail ,
a roller body having a roller that moves along the transport rail ;
A mobile platform fixed to the roller body and slidable along the transport rail, and a traction rope for pulling the mobile platform ,
The cable rack for connection attached to the transport device is transported along the existing cable rack ,
The conveying device is provided with a return preventing member that swings in one direction, and when the return preventing member comes into contact with the stringer in the conveying direction, it swings away from the stringer and moves away from the stringer in the direction opposite to the conveying direction. A cable rack conveying device configured to lock onto a cord beam without swinging upon contact . A conveying device used in a cable rack connection method using a flange of a main girder of a cable rack having a substantially channel steel cross section as a conveying rail,
Of the flanges of the main girder of the existing cable rack, the flange on the side that is not in contact with the sub girder is used as a transportation rail,
a roller body having a roller that moves along the transport rail;
A mobile platform fixed to the roller body and slidable along the transport rail, and a traction rope for pulling the mobile platform,
The cable rack for connection attached to the transport device is transported along the existing cable rack,
A cable rack conveying device, wherein the conveying device is provided with a locking tool for locking the child beam of the cable rack for connection . The roller main body is composed of connecting rods that are installed between the main girders of the existing cable rack, and the rollers provided at both ends of the connecting rods,
3. The cable rack conveying apparatus according to claim 1 , wherein said movable platform has a shape in which two parallel vertical members are connected by a horizontal member, and said roller bodies are mounted in front and rear of said vertical member. A cable rack connection method using a flange of a main girder of a cable rack having a substantially channel steel cross section as a transportation rail,
An installation step of installing a transport device that slides along the transport rail on the base end side of the existing cable rack;
a locking step of locking a cable rack for connection to the conveying device;
a conveying step of pulling the conveying device together with the locked cable rack and slidingly conveying it to the connection end side;
a connecting step of connecting the cable rack, which is locked to the conveying device at the connection end side, to the existing cable rack;
A cable rack connection method, comprising: a resetting step of removing a conveying device from a connected cable rack and then returning the conveying device to its original position along the conveying rail. The conveying device is provided with a return preventing tool that swings in one direction, and when the return preventing tool comes into contact with the slave girder in the transport direction, it swings away from the slave girder and moves in the direction opposite to the transport direction. 5. The cable rack connection construction method according to claim 4 , wherein the cable rack connection construction method is such that when it comes into contact, it is locked to the cord beam without swinging.

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