JPH1047541A - Pipeline hanging tool and hanging supporting method for pipeline - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a fitting work for improving installing property by fixing a permanent magnet in a cup yoke to form a magnetic attracting member, and passing a fastening fitting through the through hole of a fastening part provided in the magnetic attracting member to fasten the above fitting to an attracted object, and on the other hand, attaching a hanging fitting for a duct to the magnetic attracting member. SOLUTION: A cup yoke 12 has a permanent magnet 11 on its bottom, and both the ends of its end face 12a are severally provided with a projection with a through hole, and a screw bolt is passed through the above through hole to fastenably provide a magnetic attracting member. In the case of attaching a pipeline hanging tool 100, the magnetic attracting member 10 is magnetically attracted to a deck plate 4 having strong magnetism, and the screw bolt is passed through the through hole of the cup yoke 12 and screwed in the deck plate 4. In addition, a recessed part 21 is formed at the center of the magnetic attracting member 10, and piano wires functioning as a hanging member where a ball is caulked at its tip as a catching member 17 are bundled in a through hole at the center of the recessed part 21, and a stranded wire 18 is passed the through hole, and a duct holding part 15 is attached to the other end of the stranded wire 18, and the stranded wire 18 is tied by a tying tool 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic pipe which is magnetically attracted and fastened to an arbitrary position on a fixed ferromagnetic object to be attracted (for example, a deck plate, a ceiling iron plate, a steel frame for beams, etc.). The present invention relates to a pipe line hanging tool for hanging and supporting an air-conditioning duct, various pipes, wiring, and the like to the object to be sucked, and a method of supporting a pipe line.

[0002]

2. Description of the Related Art FIGS. 9 and 10 are views showing a conventional method of constructing a ceiling of a building. In FIG. 9, reference numeral 201 denotes a hanging bracket A, and reference numeral 202 denotes a duct gripper for supporting the duct 3. Usually, as shown in FIG.
10 is pierced through the deck plate 4 and entangled with the reinforcing bar 7 or the like, and then the concrete 6 of the floor 5 is poured or FIG.
After the concrete 6 is cast, the deck plate 4 is penetrated from the ceiling 9 side as shown in FIG.
, And a hanging fitting B211 is screwed into the fitting, and a duct gripping tool 212 is attached thereto, and the duct 3 is hung.

[0003] Similarly, when a rectangular duct 230 or 240 is hung as shown in FIGS. 11 and 12, in the same manner as described above, in FIG.
The deck plate 4 is penetrated and attached in advance, or as shown in FIG.
Is penetrated through the deck plate 4 and is exposed to the ceiling 9 side. The concrete 6 is devised so that the concrete 6 does not seep into the insert 242, the concrete 6 is hit, and the hanging bracket B241 is attached thereto. Further, the duct 230 is received by the shaped steel 232 in FIG. 11, and the duct 240 is received by the shaped steel 243 in FIG. 12, and the ducts 230 and 240 are held by fastening with screws 233 and 244.

[0004]

However, according to the above-mentioned conventional mounting method of the mounting bracket, when the mounting bracket is mounted before placing the concrete, concrete may leak from the through hole, and it is necessary to keep the concrete closed. there were.

[0005] There is also a method of embedding a threaded insert. In this case, however, measures are taken to prevent a situation in which concrete leaks into the screw hole, invades the concrete and hardens, and the hanging fitting cannot be screwed. I needed to be attentive.

When mounting a hole-in anchor after placing concrete, noise, vibration, dust and the like are generated because the anchor penetrates through the deck plate and is driven into the concrete. For this reason, it was necessary to take an unreasonable posture for which the physical strength was exhausted for a long time, and the work of mounting the hole-in anchor was extremely difficult. In addition, there are places where installation work cannot be performed unless holidays due to noise, dust, and the like, which may be one of the causes of extension of the construction period.

[0007] In addition, the work of attaching a duct or the like is usually performed after pipes such as electricity and water are constructed, and sometimes it is not possible to install the duct at a predetermined place. It was necessary to replace the anchor. When the position of the duct is changed, a large number of new hole-in anchors must be hit particularly, and there are many painful operations such as removing the duct.

Therefore, an object of the present invention is to eliminate the necessity of previously installing a pipe hanging bracket on a deck plate or hitting a hole-in anchor, and to generate noise and dust during the work of attaching the hanging bracket. An object of the present invention is to provide a pipe line suspending device and a pipe line hanging support method which are excellent in installation property and which greatly reduce installation work in an unreasonable posture. That is, it is an object of the present invention to provide a pipe line suspending tool and a pipe line hanging support method provided with a strong magnetic attraction force to an object to be attracted and simplified fastening means.

[0009]

SUMMARY OF THE INVENTION According to the present invention, there is provided a pipe line suspending device comprising a cup yoke, a permanent magnet having one magnetic pole fixed to the bottom of the cup yoke, and the other magnetic pole of the permanent magnet and the cup. A magnetic attracting member in which a magnetic pole of the yoke is attracted and arranged facing the object to be attracted; fastening means for fastening the magnetic attracting member to the object to be attracted; and a hanger attached to the cup yoke. Features. According to the present invention, a simple fastening member such as a screwed bolt is used in a state where the magnetic plate is magnetically attracted to an arbitrary place of a deck plate (for example, a steel plate or the like) at the time of attaching a duct or the like. Since only the fastening is performed, the workability of the installation is extremely improved as compared with the conventional work of mounting the hanging bracket, and almost no noise or dust is generated.

Further, in the present invention, a threaded bolt (tap bolt) is passed through a through hole of the projection provided on the suction surface side of the cup yoke, and a threaded bolt is further threaded into the object to be sucked. Since it is fastened and supported by the object to be sucked, the number of components of the pipe line hanging device is reduced, which is practical.

Further, according to the present invention, it is possible to adopt a configuration in which a fastening member separate from the magnetic attraction object is fastened to the object to be attracted while holding the magnetic attraction object, so that the shape of the cup yoke can be simplified. There is a merit that can be made.

Further, according to the method of suspending and supporting a pipeline according to the present invention, in the method of suspending and supporting a pipeline on an object having ferromagnetism, a permanent magnet having a cup yoke and one magnetic pole fixed to the bottom of the cup yoke is provided. The other magnetic pole of the permanent magnet of the magnetic attracting member having the magnet and the magnetic pole of the cup yoke are attracted and arranged facing the object to be attracted, and the magnetic attracting member is directly or indirectly attached to the object to be attracted. It is characterized in that it is simply fastened and that the pipe is gripped by a hanger attached to the cup yoke.

The magnetic circuit employed in the pipeline hanging device of the present invention is a so-called cup type or split pole type. The suction force of the pipeline hanging device of the present invention is determined by, for example, the thickness of the deck plate. The size, material, shape, and the like of the permanent magnet and the yoke can be appropriately adjusted and determined in consideration of the above. As the type of the permanent magnet used in the present invention, any of known ferrite magnets, rare earth magnets, alnico magnets, and other bonded magnets can be used as appropriate.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A pipe line suspending device according to the present invention has a magnetic attraction member in which a permanent magnet is fixed in a cup also serving as a yoke, and a through hole of a fastening portion provided on the attraction surface side for fastening. The fitting is passed through, the fastening fitting is fastened to the object to be attracted, a suspension fitting is further attached, for example, near the bottom of the outer surface of the magnetic attracting member, and a pipe grip such as a duct is attached to the tip of the hanging fitting. Be composed.

[0015]

【Example】

(Embodiment 1) FIG. 1 is a perspective view of a pipe line hanging device 100 of the present invention provided with a magnetic attraction member having a cup-shaped magnetic circuit. Reference numeral 10 denotes a magnetic attracting member, 11 denotes a permanent magnet, 12 denotes a ferromagnetic cup yoke also serving as a yoke, 13 denotes a mounting portion of the hanging member 14, and 15 denotes a holding portion that holds a duct or the like. In order to prevent the permanent magnet 11 from protruding from the end surface 12a of the cup yoke 12, it is preferable that a recess is formed in the end surface 12a serving as the suction surface of the pipe hanger 100 so that the permanent magnet 11 is accommodated therein. This is because the permanent magnet 11 does not directly hit the deck plate, for example, but hits the deck plate at the peripheral cup yoke end surface 12a. Protrusions 12b having vertical through holes 8 are provided at both ends of the end face 12a. The magnetic attraction member 10 is configured to be able to be fastened by threading a bolt through the through hole 8. Further, a gap 1 is provided between the outer peripheral surface of the permanent magnet 11 and the inner peripheral surface of the cup yoke 12, so as to suppress the leakage magnetic flux.

FIG. 2 is a view for explaining a cross-sectional portion and a fastening portion of the magnetic circuit portion of the pipe hanging device 100. As shown in FIG. Numeral 6 is a concrete struck on a deck plate 4 having ferromagnetic properties as a floor. The magnetic attraction member 10 is magnetically attracted to the deck plate 4 and a screw-in bolt 26 is provided at a protrusion on the attraction surface side of the cup yoke 12. It passes through a through hole 8 provided in 12b and is further screwed into the deck plate 4. 1.2m thick deck plate 4
m, the cup yoke 12 is made of SUS430 having a saturation magnetic flux density of 1.6 T (tesla), the inner diameter is 24 mm, the outer diameter is 31 mm, and a recess 21 having a diameter of about 5 mm is formed at the center. 1.2mm in diameter at the center
And a hole having a diameter of 5 m
1 mm diameter piano wire as a suspending member 18 with a ball 17 of m
The duct grip 15 was attached to the other end of the stranded wire 18. After that, the stranded wire 18 was fixed by the fixing member 16 so as not to move. 22 m diameter on the inner bottom of the cup yoke 12
An Nd-Fe-B based anisotropic sintered magnet 11 having a thickness of 5 mm and a thickness of 5 mm and having a residual magnetic flux density of 1.1 T (tesla) was fixed with an epoxy adhesive 19. The permanent magnet 11 is magnetized so that different poles come in the opening direction and the bottom direction of the cup yoke 12 in accordance with the magnetization direction. Here, the distance between the inner peripheral surface of the cup yoke 12 and the outer peripheral surface of the permanent magnet 11 is defined as x. In addition, in the suction state shown in FIG.
The distance between the attraction side surface and the surface 11a of the permanent magnet 11 facing the deck plate 4 is y. Approximately, the interval y
Is determined as the step size between the attraction surface 12a and the opposing surface 11a of the permanent magnet 11. And in the present invention, x ≧ y,
Preferably, by setting x> y, the leakage magnetic flux is suppressed, and most of the magnetic lines of force generated from the permanent magnet 11 are, as schematically illustrated, the deck plate 4 and the cup yoke 12.
, And a closed loop Φ returning to the permanent magnet 11 via the magnetic suspension 100 can be formed, and the magnetic suspension 100 can be strongly attracted to the deck plate 4. In FIG. 2, x = 1
mm, y = 0.5 mm, which is ideal. FIG. 2 illustrates a closed loop Φ in the counterclockwise direction,
It goes without saying that a clockwise closed loop exists similarly.

(Embodiment 2) In the above embodiment, the cup yoke 12 is formed by cutting out SUS430 material.
As shown in FIG. 3, for example, made of SS41 and having a thickness of 3.6 mm
By using the drawn product of the above, a recess 31 having a diameter larger than 5 mm is made at the center of the bottom, and a hole having a diameter of 1.2 mm is formed substantially at the center of the recess 31 to form a cup yoke 12 ′.
As a hanging member 18 in which a ball 17 is swaged as a hooking member 17, a twisted wire 18 in which a piano wire having a diameter of 1 mm is bundled is passed through a through hole of the recess 31 and further, a duct grip portion 15 (shown in FIG. The same suspension force as that of the above-mentioned Example 1 was obtained also with the magnetic hanging device 110 to which the device of (1) was attached. Reference numeral 8 'is a through hole for a screw bolt provided in the cup yoke 12'. The cup yoke 1
Of course, 2 'may be formed by sheet metal stamping.

The pipe line suspending device of the present invention is characterized in that the magnetic attraction member has a flat shape. Therefore, at the time of suspending a duct such as a duct, the duct to be installed collides with the flat magnetic adsorption member adsorbed and fastened to the object to be adsorbed, or the clothes or the like of the worker are caught. Therefore, the workability of installing the conduit is greatly improved, and the magnetic attraction member is provided with particular practicality of suppressing a large peeling force from being applied. This will be described with reference to FIG. In FIG. 3, the outer diameter of the cup yoke 12 'is D,
Let H be the height. The outer diameter of the permanent magnet 11 is d, and the thickness is t. The flat ratio of the flat magnetic attraction member 10 ′ constituting the pipe hanging member 110 is H / D = 0.30, and the flat ratio of the corresponding permanent magnet is t / d = 0.23. The magnetic attraction member provided in the pipe line suspending device of the present invention has an H / D = 0.10 to 0.8 in view of the above practicality.
It is desirable to set it to 0, preferably 0.20 to 0.70. If it is less than 0.10, it is difficult to obtain a sufficient adsorption force, and if it exceeds 0.80, the flatness gradually disappears and the above-mentioned practicality is impaired. Furthermore, H / D
If the above range is specified, the magnetic attracting member in the attracted and fastened state, as described above, due to the collision of the pipeline or the hooking of clothes, etc., other than the pulling force perpendicular to the fastening surface, for example, as shown in the figure. A peeling force (hereinafter referred to as a shearing force) in the direction A or the direction B is suppressed.
It has been empirically found that the shear force separates the magnetic attraction member from the object to be attracted with a weaker force than the vertical pulling force. For example, in terms of the magnetic attraction force alone, the attraction force at a 45 ° shear force is about 50% of the vertical pull force and about 20% at the parallel shear force with respect to the attraction surface. I know. Therefore, the utility of the pipe line suspending device of the present invention provided with the flat magnetic attracting member to which the shearing force is hardly applied is enormous.

In the above embodiment, the metal stranded wire 18 is used. However, the material for forming the stranded wire may be resin, fiber, or the like, or these single wires may be used instead of the stranded wire.

(Embodiment 3) FIG. 4 shows an example of a pipe line suspension according to the present invention provided with a magnetic attraction member 10 '' having a magnetic circuit called a split pole type. In FIG. 4, one permanent magnet is magnetized in two poles in the cup yoke 12, and two magnetic poles 71, 7 having different magnetizing directions are provided on the attraction surface side.
2 are formed and arranged to increase the magnetic attraction force as the pipe line hanging member 150. A permanent magnet disposed on the inner bottom of the cup yoke 12 was fixed with an epoxy adhesive 19. The gap 1 has a non-magnetic resin 2 as shown in FIG.
(For example, epoxy resin or the like) is filled and hardened to protect the permanent magnet 31 from an impact at the time of installation.
The magnetic attraction force is maintained normally by preventing magnetic particles and the like from entering the gap 1. Further, a ball 17 and a stranded wire 18 were attached to the lower bottom of the cup yoke 12 in the same configuration as in FIG. This split pole type magnetic circuit has the advantage that the magnetic poles are divided even with the same magnet area, whereby the magnetic flux of the magnetic path is less likely to be saturated, and a strong attraction force is easily obtained. As a split pole type magnetic circuit, FIG. 4 shows a configuration example of two poles magnetized by one permanent magnet.
Multiple poles or more may be magnetized. For example, as shown in FIGS. 5 (a) and 5 (b), a configuration in which a large number of magnetic poles are alternately arranged so that adjacent magnetic poles are different on the attracting side. good. In order to increase the attraction force, it is better to arrange more magnetic poles. Instead of multi-pole magnetization, many parallel magnetized permanent magnets are manufactured, and one permanent magnet is arranged for each magnetic pole.
A magnetic pole pattern as shown in (b) may be formed.

(Embodiment 4) FIG. 6 shows still another embodiment of the pipe line suspending device of the present invention, and shows a state in which it is magnetically attracted to and fastened to the deck plate 4. In FIG. 6, the cup yoke 50 is formed by drawing a steel plate made of SS41. In the center of the lower part of the cup yoke 50, a protrusion 52 for holding the duct hanger 51 is formed, and a slit 53 for inserting the duct hanger 51 and a hole for passing a locking bolt 54 are formed. The permanent magnet 11 is vertically magnetized, and is bonded to the inner bottom surface of the cup yoke 50 with an epoxy adhesive 19. The duct hanging member 51 is a ribbon-shaped thin iron plate and has an appropriate hole, and the duct hanging member 51 is attached to the magnetic attraction member 60 with bolts 54 and nuts 55. The through-holes 45 in the vertical direction are formed in both of the protrusions 35b, 35b on the suction surface side of the holding member 35, and the through-holes 4
Screw bolts 36 are passed through 5, 45, and the screw bolts 36 are screwed into the deck plate 4 to fasten the magnetic attraction member 60 to the deck plate 4. A protrusion 52 is disposed in an opening 38 formed at the center of the holding member 35, and the holding member 35 is a cup of the magnetic attraction member 60 for the same reason as the magnetic attraction member 10 'of FIG. It has a flat shape substantially similar to the yoke 50. That is, the outer diameter (D ′) and the height (H ′) of the holding member 35 are defined as H ′ / D ′ = 0.10 to 0.10.
It is desirable to set 0.80, preferably 0.20 to 0.70. Then, after surrounding the duct 3, the duct 3 is gripped with bolts 56 and nuts 57. In this case, a ribbon-shaped thin iron plate is used for the duct hanging member 51. However, a strip-shaped or net-shaped one made of another material may be used, and a strong band formed of a reinforcing fiber such as aramid fiber is preferably used.

FIG. 7A is a view of the holding member 35 of FIG. 6 as viewed from below. The holding member 35 includes a flat portion 46 that is in contact with the deck plate 4 by a fastener, a concave portion 39 that holds the outer periphery of the magnetic attraction member along a contour thereof, and a through hole through which the screw bolts 38 are passed. Holes 45, 45,
And an opening 38 through which a suspending tool (suspending member) is passed. In particular, the holding member 35 is made of a ferromagnetic material (for example, SS400).
etc. ), The holding member 35 is moved by the magnetic attraction member 6 due to the magnetic flux leaking from the held magnetic attraction member 60.
Since the magnetic member is magnetically attracted to the outer peripheral surface of the fixing member 35, the complicated operation of fastening the holding member 35 to the deck plate 4 while supporting the holding member 35 by hand is eliminated, and the fastening operation becomes much easier. Also, since the opening 38 is open as described below,
When the holding member 35 is fastened to the deck plate 4 after the magnetic attraction member 60 having the duct hanging member 51 is attracted to the deck plate 4, the duct hanging member 51 is positioned directly below the magnetic attraction member 60 through the opening 38. Therefore, the duct 3 can be hung directly below the pipeline hanger 160. FIG.
FIG. 7B is a cross-sectional view of a main part showing only the holding member 35 in FIG. 6.

(Embodiment 5) FIG. 8 shows a configuration in which a pipe hanging device of the present invention is used in combination with a fixed hanging device. FIG. 8 (a)
Then, one end penetrates the deck plate 4, is embedded in the concrete 6, is entangled with the reinforcing bar 7, and the other end, and has a fixed hanging part 210 having a holding part at the other end.
Are suspended and supported. The required number of the fixed hanging portions 200 are arranged at predetermined intervals. Each fixed hanging part 200
Are provided with through holes in a cross shape, and the ends of the ducts 3, 3, 3 ', 3' are fitted into the through holes. That is, the ducts 3, 3, 3 ', 3' are connected to the duct distribution unit 200.
And are suspended in a cross-like manner via a. The other ends of the ducts 3, 3, 3 ′, 3 ′ are respectively fitted into other fixed hanging portions 200. Further, the middle of each duct 3, 3, 3 ', 3' is suspended and supported at appropriate intervals by the pipe line suspending device 100 of the present invention. According to the above configuration, since the fixed hanging portion 200 and the fixing bracket 210 as the duct distribution unit can be made of a vibration-resistant metal, the swing of the duct caused by an earthquake, natural vibration, or the like can be reduced. Further, since the middle of the duct is suspended and supported by the pipe line hanging tool of the present invention, the duct can be easily installed. Note that the fixed hanging portion 200 may be used for hanging the duct in a cantilever manner, or may be provided with a uniaxial through hole.

(Embodiment 6) In FIG. 8 (b), pipe line hanging members 150 of the present invention are arranged at appropriate intervals between fixed hanging members 210, 210 arranged at predetermined intervals.
The structure which suspends and supports the pipe 33 for electric wires is shown.
This configuration is excellent in the earthquake resistance and the installation property as in FIG. 8A.

In the above-described embodiment, a duct (for example, for air conditioning) and a wire hanging device for a wire have been described. However, for example, various pipes for conveying other gases, liquids, powders, etc., and wires for wiring, etc. Of course, it can be applied to hanging support. Also,
In the above embodiment, the example in which the permanent magnet is fixed to the cup yoke with the adhesive has been described, but other fixing means such as caulking may be used. Further, in some cases, it can be fixed to the cup yoke using only the magnetic attraction force of the permanent magnet.

[0026]

As described above, according to the present invention, there is no need to install a hanging bracket on a deck plate in advance, nor to hit a hole-in anchor, etc., and there is almost no generation of noise and dust, etc. Can be installed, and the installation can be improved at the same time. In addition, since the suspenders that suspend and support the ducts, various pipes, wiring, etc. are rotatably attached to the flat magnetic attraction member, a moment such as kneading is unlikely to be applied and sufficient suspension to the deck plate etc. Lowering power can be secured.

[Brief description of the drawings]

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

FIG. 2 is a partial cross-sectional view showing a state in which a duct is hung by a pipe hanger having a cup-shaped magnetic attraction member according to an embodiment of the present invention.

FIG. 3 is a sectional view of a main part showing another embodiment of the present invention.

FIG. 4 is a partial sectional view showing still another embodiment of the present invention.

FIG. 5 is a perspective view showing another embodiment of the permanent magnet constituting the split pole type magnetic attraction member, wherein the shape of the permanent magnet is (a) a block shape and (b) a triangular plate shape. is there.

FIG. 6 is a partial sectional view showing still another embodiment of the present invention.

FIG. 7A is a view of the holding member as viewed from below,
(B) is a sectional view of the main part.

FIG. 8 shows an embodiment in which a part is fixedly suspended.
(A) is a case where a duct is suspended, and (b) is a case where an electric wire is suspended.

FIG. 9 is a partial cross-sectional view showing a state of duct suspension using a conventional embedded suspension fitting.

FIG. 10 is a partial sectional view showing a state of duct suspension using a conventional hole-in anchor.

FIG. 11 is a partial cross-sectional view showing a state of hanging a rectangular duct using a conventional embedded hanging fitting.

FIG. 12 is a partial cross-sectional view showing a state where a rectangular duct is suspended using a conventional hole-in anchor.

[Explanation of symbols]

1 gap, 3 ducts, 4 deck plates, 5 floors,
6 concrete, 7 rebar, 8, 8 ', 8'', 45
Through hole, 9 ceiling, 10, 10 ', 10'', 60
Magnetic attraction member, 11 permanent magnet, 11a facing surface, 1
2,12 ', 50 cup yoke, 12a suction surface, 1
3 mounting portion, 14 hanging member, 15 gripping portion, 16 locking member, 17 hook member, 18 hanging member, 19 adhesive, 21, 31 dent, 33 wire piping, 35 holding member, 51 duct hanging member, 52 Projection, 53 slits, 54, 56 bolts, 55, 57 nuts, 7
1,72 magnetic poles, 97,98 magnetic pole boundaries, 100,11
0, 150, 160 Pipeline hanging fixtures, 200 Fixed hanging parts, 201, 231 Hanging brackets A, 202, 212 Duct grippers, 210 Fixing hanging brackets, 211, 241
Suspension bracket B, 218 hole in anchor, 230, 2
40 Duct, 232,243 shaped steel, 242 threaded insert, 233,244 screw

Claims (4)

[Claims] 1. A cup yoke and a permanent magnet having one magnetic pole fixed to the bottom of the cup yoke, and the other magnetic pole of the permanent magnet and the magnetic pole of the cup yoke are attracted and arranged to face an object to be attracted. A hanging member attached to the cup yoke, comprising: a magnetic attracting member, a fastening means for fastening the magnetic attracting member to the object to be attracted, and a suspending member attached to the cup yoke. 2. The fastening means is configured such that a threaded bolt is passed through a through hole of a protrusion provided on the suction surface side of the cup yoke, and the threaded bolt is further threaded into the object to be sucked. The pipe line suspending device according to claim 1, wherein: 3. The fastening means, wherein a fastening member separate from the magnetic attraction object is fastened to the object to be attracted while holding the magnetic attraction member.
4. A hanging device for a pipeline according to item 1. 4. A method of suspending and supporting a pipeline on an object having ferromagnetism, comprising: a permanent magnet of a magnetic attraction member having a cup yoke and a permanent magnet having one magnetic pole fixed to the bottom of the cup yoke. The other magnetic pole and the magnetic pole of the cup yoke are attracted and arranged facing the object to be attracted, and the magnetic attraction member is directly or indirectly fastened to the object to be attracted,
A method of suspending and supporting a pipeline, wherein the pipeline is gripped by a suspending tool attached to the cup yoke.