JP7403766B2 - Frame device and wire material drawing device - Google Patents

Description

The present invention relates to a gantry device and a wire material drawing device.

Conventionally, in order to pull out wire materials such as profiles, which are used to rehabilitate wiring or piping, from a large drum and feed them into the ground, a mount device is used to rotatably place the drum. used. As a trestle device, one that includes a trestle frame having a bottom plate and a side plate portion rising from an edge extending in the longitudinal direction of the bottom plate, and a roller rotatably provided on the side plate portion is widely known. (For example, Patent Documents 1 and 2 below).
On the other hand, a drum for spinning a wire material, as in the drum shown in Patent Document 1, has a so-called outer winding method in which the wire material is wound around the drum body from the surface of the drum body to the upper surface. There are two types: a drum and an inner winding drum that pulls out the wire material wound around the body from inside the winding.
Inner winding drums require the wire material to be pulled out from the inside of the winding, so they have a divided split drum that serves as the axis for spinning the wire material, and a split drum that connects and fixes opposing flanges. and a tension bar that connects the flanges. The tension bars are provided at intervals in the circumferential direction of the flange of the drum near the inner side of the outer peripheral edge of the flange.

Publication No. 50-011093 JP2013-172538A

As in the drum shown in Patent Document 1, as in Patent Documents 1 and 2, when the pedestal frame has a side plate part standing upright with a roller in between, the tension bar is attached to the side plate part inside the pedestal frame. There was a problem that an inner winding drum could not be used because of interference.
Furthermore, when pulling out a wire material from the outer drum, the wire material may loosen in the drawing direction, but in conventional mount devices, the loosened wire material connects to the flange with the inner side plate of the mount frame. There was a problem that it was easy for people to chew between them.
Therefore, the present invention provides a gantry device that can be applied to an inner-wound drum and that makes it difficult for the wire material to get caught between the side plate portion and the flange of the drum when installing an outer-wound drum.

The trestle device of the present invention includes a trestle frame of a drum around which a linear material is wound, which has a bottom plate part and a side plate part rising in parallel from an end of the bottom plate part, and the trestle frame is arranged between the opposing side plate parts of the trestle frame. and at least two rollers that are rotatably installed at intervals in the extending direction of the side plate part and support the drum at at least two locations at intervals in the circumferential direction of the drum, A perfect circle or an elliptical arc-shaped notch having a major axis in the horizontal direction is formed in the inner side plate portions of a pair of gantry frames arranged parallel to each other.
According to this configuration, when installing the outer drum, the wire material is difficult to get caught between the side plate portion and the flange of the drum, and the inner drum can also be used.

The top of the circumferential surface of the roller that contacts the flange of the drum of the gantry device of the present invention may be located below the upper edge of the side plate of the gantry frame.
According to this configuration, when the flange of the drum is placed on the roller, it is easy to prevent objects from being caught between the roller and the flange of the drum.

In the gantry frame of the gantry device of the present invention, an end plate may be provided between side plate surfaces that stand up in parallel.
According to this configuration, when the flange of the drum is placed on the roller, objects that come into contact with the flange of the drum can be easily prevented from being caught between the flange and the roller.

The end plate of the gantry device of the present invention may be formed to be movable and fixed in the vertical direction with respect to the side plate portion.
According to this configuration, it is possible to adjust the distance between the flange of the installed drum and the end plate.

The gantry frame of the gantry device of the present invention may be formed to be expandable and contractible in the direction in which the flange of the drum is placed.
According to this configuration, it becomes possible to set the pedestal device according to the drum size.

The gantry frame of the gantry device of the present invention may be provided with a sensor that detects a person or an object, and may be electrically connected to the motor so as to be able to operate in conjunction with the sensor.
According to this configuration, when an object approaches the gantry frame or the vicinity above it, it is possible to issue a warning or stop the driving of the gantry device.

A wire material drawing device of the present invention includes the gantry device according to any one of the above, and a drum installed on the gantry device and around which a wire material can be wound.
According to this configuration, the wire material drawing device can exhibit any of the above functions.

In the wire material drawing device of the present invention, the distance between the end plate of the gantry device and the drum may be 5 mm or less.
According to this configuration, objects that come into contact with the flange of the drum can be easily prevented from being drawn in and caught between the flange and the roller.

The notch of the wire material drawing device of the present invention may be formed on a concentric circle of the outer peripheral edge of the flange of the drum.
According to this configuration, when the inner drum is installed in the wire material drawing device, it is possible to prevent the tension bar of the inner drum from interfering with the side plate.

The notch of the wire material drawing device of the present invention may be formed on a circumference having a diameter equal to or larger than the diameter of the drum.
According to this configuration, when the inner drum is installed in the wire material drawing device, by forming the notch larger than the position where the tension bar of the inner drum is located, the tension bar of the inner drum can be attached to the side wall. It is possible to avoid interference with the

The notch of the wire material drawing device of the present invention may be formed wider than the shortest distance between the mutually opposing circumferential surfaces of the rollers arranged at intervals in the circumferential direction of the drum.
According to this configuration, when the outer drum is installed in the wire material drawing device, it is easier to prevent the drawn wire material from being caught between the roller and the side plate, and even if the wire material is caught between the rollers and the side plate. This makes it easier to take out the wire material.

The frame device of the present invention can also be applied to an inner-wound drum, and has the effect of making it difficult for the wire material to get caught between the side plate portion and the flange of the drum when installing the outer-wound drum.

FIG. 1 is a side view showing a wire material drawing device according to an embodiment of the present invention. (a) It is a front view showing an inner winding drum installed in a gantry device of one embodiment of the present invention. (b) It is a side view showing the inner winding drum installed in the gantry device of one embodiment of the present invention. FIG. 2 is a front view showing an outer drum installed in a gantry device according to an embodiment of the present invention. FIG. 1 is a perspective view showing a gantry device according to an embodiment of the present invention. FIG. 1 is a plan view showing a gantry device according to an embodiment of the present invention. FIG. 2 is an enlarged plan view of a portion of the gantry device according to an embodiment of the present invention where rollers are located. FIG. 1 is a side view showing a gantry device according to an embodiment of the present invention. It is a side view which showed another example of the wire material drawing-out device of one Embodiment of this invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a gantry device and a wire material drawing device of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, a wire material drawing device 1 according to an embodiment of the present invention is capable of pulling out a long belt-shaped rehabilitation pipe material (so-called profile) for rehabilitating wiring or underground pipes. It is equipped with a drum 2A for rotating cards, and a gantry device 3 on which the drum 2A is placed and from which a wire material is pulled out.

The wire material (not shown) routed to the drum 2A is not particularly limited, but rehabilitation pipe materials such as cables and profiles that are buried underground and have a length of several meters to several hundred meters can be used. I can give an example.

As shown in FIG. 2 or FIGS. 3(a) and (b), the drum includes an inner winding drum 2A that sequentially pulls out the wound wire material from the innermost side, and an inner winding drum 2A that sequentially pulls out the wound wire material from the innermost side. An outer winding drum 2B which is sequentially drawn out from the outer drum 2B is used as appropriate.
As shown in FIGS. 2(a) and 2(b), the inner drum 2A includes disk-shaped flanges 5, 5 arranged oppositely, a split barrel 6 provided at the center of the flange 5, and a flange 5. , 5, and a tension bar 7 for fixing the flanges 5, 5 to each other. Both ends of the tension bar 7 are fixed near the outer peripheral edge 5e of each opposing flange 5 by welding or the like.

As shown in FIG. 3, the outer drum 2B mainly includes a cylindrical body 4 for winding the wire material, and disc-shaped flanges 5 formed at both ends of the body 4 in the axial direction. have.

In this embodiment, the wire material drawing device 1 and the gantry device 3 will be described using the inner winding drum 2A.
The size of the inner drum 2A (hereinafter referred to as "drum 2A" in this embodiment) is not particularly limited, but in this embodiment, the diameter of the body 4 is about 1200 mm, the width of the body 4 is about 1200 mm, The drum 2A, which is large in size with a flange 5 having an outer diameter of about 2200 mm, and which is difficult for a person to hold and work on, will be described as an example.

The tension bar 7 of the drum 2A of this embodiment is also for holding the winding of the wire material by suppressing the expansion of the winding, and has a cylindrical or cylindrical material having a diameter of several centimeters or a width dimension of several centimeters. It is formed from a square cylinder or a square column. Therefore, the tension bar 7 is placed near the outer periphery of the flange 5, generally within several cm to 10 cm from the outer periphery of the flange 5, or along the outer periphery outside two-fifths of the diameter from the center of the flange 5. It is provided.

As shown in FIGS. 4 and 5, the trestle device 3 includes a pair of trestle frames 8, 8, which serve as a pedestal on which a drum 2A (see also FIG. 2; the same applies hereinafter) on which a wire material is rolled, and a trestle frame 8 and rollers 9 installed therein.
The gantry frame 8 has a bottom plate part 15, side plate parts 16a and 16b rising in parallel along the long sides of the bottom plate part 15, and end plates 17 rising along the short sides of the bottom plate part 15.

As shown in FIG. 5, the bottom plate portion 15 is formed into a long rectangular shape in plan view. A plurality of holes h are formed in the bottom plate portion 15 at intervals in the longitudinal direction, thereby reducing the weight.
As shown in FIG. 4, the side plates 16a and 16b stand up substantially perpendicularly along the long sides of the bottom plate 15, that is, from the edges along the longitudinal direction. The side plate parts 16a, 16b are arranged in a direction between the frame frames 8, 8, in which a pair of frame frames 8, 8 are arranged in parallel, and the one located on the inside is the inner plate part 16a, and the one located on the outside is the outer plate part 16b. It consists of

The outer plate portion 16b has a substantially rectangular flat surface, and locking notches 19 that hang down from the upper edge 18 are formed at both ends in the longitudinal direction.
The width of the locking notch 19 is slightly larger than the diameter of the rotating shaft 9a of the roller 9.
The depth of the locking notch 19 in the vertical direction is such that the entire roller 9 including the peripheral surface of the roller 9 is hidden within the outer plate portion 16b.

The inner plate portion 16a has a substantially rectangular flat surface cut out from the upper edge 18 in an arc shape.
The arc-shaped notch 20 is formed on a concentric circle of the circular outer periphery of the flange 5 shown in FIG. has been done. In this embodiment, it is formed on a concentric circle of the circular outer periphery of the flange 5 and 1 to several cm inside the outer periphery to ensure that the tension bar 7 does not interfere with the inner plate portion 16a when the drum 2A rotates. It is now possible to avoid this.

The inner plate part 16a has a locking notch 19 of the outer plate part 16b at a position corresponding to the locking notch part 19 of the outer plate part 16b in the longitudinal direction (that is, the direction between the end plates 17, 17). A similar locking notch 19 is formed.
The end plate 17 is erected along the short side of the bottom plate part 15 so as to close the space between both ends of the side plate part 16 in the longitudinal direction.

The end plate 17 has a rectangular flat surface (that is, a surface viewed from the front or from the rear). The end plate 17 is provided such that the shortest distance between the upper edge 17t and the flange 5 of the drum 2A is 5 mm or less.
In this embodiment, the end plate 17 is configured to stand up from the edge of the bottom plate part 15, but if the shortest distance from the flange 5 is set to 5 mm or less, the end plate 17 can stand up from the edge of the bottom plate part 15. A gap may be provided between the bottom plate portion 15 and the bottom plate portion 15 .

As shown in FIG. 5, the pair of mount frames 8, 8 are fixed by welding with a rod member 25, with the end plates 17 and the locking notches 19 facing each other in parallel.

As shown in FIG. 6, the roller 9 includes a body portion 9d formed in a columnar or cylindrical shape having a rod hole 9h in the center, and flange portions 9f, 9f provided at both ends of the body portion 9d in the axial direction. have.
The flange portion 9f is formed in a tapered shape whose diameter decreases toward the body portion 9d.
A rotating shaft 9a for rotating the roller 9 passes through the center of the roller 9.

The roller 9 configured as described above is locked in the locking notches 19 of the inner plate part 16a and the outer plate part 16b by fixing devices 26 such as screws, and is fixed at two locations on both longitudinal ends of one frame frame 8. Fixed and rotatable. The rollers 9 are installed at a total of four locations on a pair of gantry frames 8 arranged in parallel.

As shown in FIG. 5, one of the four rotating shafts 9a of the rollers 9, in this embodiment, one of the rotating shafts 9a of the roller 9 on the front side of the gantry frame 8 (i.e., the drawing side of the wire material) is electrically connected to the rotating shaft 9a of the roller 9. A motor M is attached to rotate the rotating shaft 9a.

The gantry device 3 and the wire material drawing device 1 having the above configurations are used in the following manner and exhibit their functions and effects.
First, the gantry device 3 is installed at an appropriate location near the location where the wire material is to be pulled out, and the flange 5 of the drum 2A is placed on the roller 9 of the gantry device 3, as shown in FIG.
As shown in FIG. 5, the flange 5 of the drum 2A is installed so as to be supported by the circumferential surfaces of the bodies 9d of two rollers 9 fixed in the longitudinal direction of each gantry frame 8.

Then, the flanges 5, 5 of the drum 2A shown in FIG. 1 are each supported at two circumferentially spaced points on the pair of gantry frames 8, and are stably mounted.
Further, the distance between each end plate 17 of the gantry frame 8 and the flange 5 of the drum 2A is set to 5 mm or less.
Therefore, when the motor M is driven to rotate the roller 9, the drum 2A rotates as the roller 9 rotates, and the rollers 9 other than the roller 9 to which the motor M is attached also rotate in conjunction. Therefore, the linear material can be easily drawn out from the drum 2A at a constant speed.

At this time, since the gap between the end plate 17 and the flange 5 of the drum 2A is always set to 5 mm or less, it is possible to effectively prevent objects from being caught between the roller and the flange. . Moreover, since the roller 9 on which the flange 5 of the drum 2A is placed is formed so as to be hidden below the side plate portion 16b, it is possible to effectively prevent objects from entering below the roller 9.

Moreover, since the notch 20 is formed in the upper part of the inner side plate part 16a, it is possible to avoid the tension bar 7 and prevent the tension bar 7 from interfering with the inner side plate 16a when the installed drum 2A rotates. This effect is achieved.

In addition, since the gantry device 3 has an arc-shaped notch 20 in the inner plate portion 16a, even when the outer drum 2B is installed, even if the drawn wire material becomes slack near the gantry frame 8, The wire material is difficult to get caught between the flange 5 and the inner plate part 16a, or even if it gets caught, it is easy to return to its original state. In particular, in the above embodiment, as shown in FIG. 1, the notch 20 is formed wider than the shortest distance between the opposing circumferential surfaces of the rollers 9, 9 arranged in the longitudinal direction of the gantry frame 8. That is, since both ends of the notch 20 are provided between the rollers 9, 9, even if the wire material were to get caught between the inner side plate 16a and the roller 9, the wire material would not be caught in the pinched state. Easy to restore from. Therefore, the gantry device 3 has the effect of being able to reduce the work efficiency of drawing out the wire material and prevent damage to the wire material.

In the above embodiment, the notch 20 of the inner plate portion 16a is formed concentrically with the circle of the outer peripheral edge of the flange 5 of the drum 2A. As far as possible, as shown in FIG. 7, it may be formed on a circumference that has a different center from the outer peripheral edge of the flange 5 and has a larger diameter than the outer peripheral edge. More preferably, the cutout 20 is formed so that a part of the rollers 9, 9 can be exposed above the rollers 9, 9 and between the rollers 9, 9, or between the rollers 9, 9. It is good if it is formed. Even if the notch 20 is formed in this way, the gantry device 3 has the same functions and effects as those of the above embodiment. Further, the notch 20 may have an elliptical shape with its long axis directed in the horizontal direction, as long as it can avoid the tension bar 7.

Further, the gantry frame 8 may be provided with a sensor that detects a person or an object, and may be electrically connected to the motor M so as to be able to operate in conjunction with the sensor. With such a configuration, when a person or object approaches a position such as above the pedestal frame 8 that could touch the outer drum 2A or the inner drum 2B, the motor is stopped and the rotation of the drum 2 is stopped. This has the effect of ensuring work safety by stopping the system and emitting a warning sound.

Further, the trestle frame 8 and/or the rod member 25 connecting the trestle frames 8 may be formed to be extendable and contractible. With such a configuration, it is possible to avoid the trouble of preparing separate gantry devices 3 depending on the diameter of the drum 2, and it is possible to handle drums 2 of various diameters with one gantry device 3.

Further, as shown in FIG. 8, the end plate 17 does not need to be provided on the edge of the bottom plate portion 15, and may be provided at an intermediate portion of the bottom plate portion 15 in the longitudinal direction. Further, the end plate 17 may be formed to be vertically movable and fixed between the inner plate portion 16a and the outer plate portion 16b. Specifically, as shown in FIG. 8, for example, grooves along the short sides are formed inside both longitudinal ends of the inner plate part 16a and the outer plate part 16b, and the end plate 17 is slid within the grooves. It may be possible to do so. Although there are no particular limitations on how to fix the end plate 17 in this configuration, it is possible to form a bent part in the end plate 17 that overlaps with the side plate part 16, to form a long hole penetrating through the side plate part 16 and the end plate 17, and to fix the end plate 17 with screws, etc. For example, there are ways in which the two parties can be tightened.

By adopting a configuration in which the end plate 17 can be moved up and down and fixed at a desired position, the end plate 17 and the flange 5 It is possible to adjust the distance between the two and the two to be 5 mm or less.

Although it is preferable that the end plate 17 is provided as described above, even if the end plate 17 is not provided, the wire material may become loose and get caught between the side plate portion 16 and the flange 5 of the drum 2. The effect of the present application is that it is possible to prevent the items from being put away.

Moreover, three or more locking notches 19 may be formed in the inner plate part 16a and the outer plate part 16b so that they can be appropriately selected according to the size of the drum 2A.

1 Wire material drawing device 2 Drum 3 Frame device 5 Flange 8 Frame 9 Roller 15 Bottom plate portion 16 Side plate portion 17 End plate 18 Upper edge 20 Arc-shaped notch

Claims (10)

A drum mount frame having a bottom plate portion and a side plate portion rising in parallel from an end of the bottom plate portion, around which a linear material is wound;
The drums are arranged between the opposing side plate parts of the gantry frame and are rotatably installed at intervals in the extending direction of the side plate parts, and the drums are arranged at least two at intervals in the circumferential direction of the drum. at least two rollers supporting at the point;
An arc-shaped notch is formed in the inner side plate of a pair of stand frames arranged parallel to each other ,
The pedestal device is arranged such that the top of the circumferential surface of the roller that contacts the flange of the drum is located below the upper end edge of the side plate portion of the pedestal frame . The gantry device according to claim 1, wherein an end plate is provided between side plate surfaces that stand up in parallel on the gantry frame. 3. The gantry device according to claim 2, wherein the end plate is formed to be movable and fixed in the vertical direction with respect to the side plate part. 4. The gantry apparatus according to claim 1 , wherein the gantry frame is formed to be expandable and contractible in a direction in which the flange of the drum is placed. 5. The gantry apparatus according to claim 1, wherein the gantry frame is provided with a sensor for detecting a person or an object, and is electrically connected to a motor so as to be able to operate in conjunction with the sensor. The gantry device according to any one of claims 1 to 5 ,
A wire material drawing device having a drum installed on the gantry device and capable of winding a wire material. The wire material drawing device according to claim 6, wherein the distance between the end plate of the gantry device and the drum is 5 mm or less. The wire material drawing device according to claim 6 or 7 , wherein the notch is formed on a concentric circle of the outer peripheral edge of the flange of the drum. The wire material drawing device according to any one of claims 6 to 8 , wherein the notch is formed on a circumference having a diameter larger than the diameter of the drum. 10. The cutout according to claim 6 , wherein the notch is formed wider than the shortest distance between the opposing circumferential surfaces of rollers arranged at intervals in the circumferential direction of the drum. Wire material drawing device.

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