JP7419684B2 - hanging structure - Google Patents

Description

The present invention relates to a hanging structure using a hanging fitting that is hung from a hanging tree made of lip channel steel and suspends and fixes a suspended member.

Conventionally, as a suspension structure for a suspended member such as a ceiling-embedded air conditioner, a locking claw provided on an air conditioner casing is hooked onto a lower nut screwed onto a hanging bolt. It is known that a lower nut and an upper nut provided on the lower nut sandwich and fix a locking claw (see Patent Document 1 and Patent Document 2). Some of these configurations include, for example, as in Patent Document 1, in order to prevent the upper washer disposed between the upper nut and the locking claw from falling when the locking claw is hooked on the lower nut. Another proposal has been made in which a washer holding piece made of cardboard is placed in contact with the bottom of the upper washer. Furthermore, as in Patent Document 2, for example, a washer-integrated vibration isolator made of an H-shaped rubber plate is inserted into the hanging bolt from the horizontal direction so as to sandwich the locking pawl, and then tightened with the upper and lower nuts. describes a configuration in which the locking pawl can be fixed without pressing the upper washer with your fingers.

Japanese Patent Application Publication No. 08-75241 Japanese Patent Application Publication No. 2002-162096

By the way, when fixing the upper end of a hanging bolt to a hanging tree made of lip channel steel with a downward opening, the lip part is sandwiched and fixed between two upper and lower metal fittings, which increases the number of parts. Further, when the vibration isolating rubber is disposed between the upper nut and the locking pawl of the suspended member, measures are required to prevent the vibration isolating rubber from falling, which reduces workability.

Therefore, an object of the present invention is to provide a suspension structure that can contribute to cost reduction and improvement of workability.

The suspension structure of the present invention consists of a clamp member fixed to the lower flange of an H-shaped steel beam, and a horizontal lip channel steel whose lower end is supported by the clamp member and whose upper end opens downward. A support fitting that supports a hanging tree, the hanging tree that is supported by the support fitting, a hanging fitting that suspends and fixes a suspended member that is suspended from the hanging tree, and a hanging fitting that is fixed to the hanging fitting. A hanging structure comprising the suspended member, wherein the hanging metal fitting is formed such that the length direction of the hanging metal fitting is longer than the opening width of the hanging tree, and the hanging metal fitting is inserted into the inside of the hanging tree. , a second latching plate that is hooked to the lips on both sides of the hanging tree; and a second latching plate that is screwed into a screw hole provided in the second latching plate, and whose upper end can be moved in and out upwardly from the second latching plate. a bolt, and a second operation part that rotates the second bolt, the second bolt having its upper end pressed against the groove bottom of the hanging tree so that the upper end and the second latching plate are in contact with each other. The supporting metal fittings include a first latching plate having the same shape as the second latching plate, and a first bolt having the same shape as the second bolt. , has a first operation part having the same shape as the second operation part, and the first latching plate is inserted into the hanging tree and hooked on the lips on both sides of the hanging tree, and the first bolt is inserted into the hanging tree. , is screwed into a screw hole provided in the first latching plate, and the upper end can move upwardly into and out of the first latching plate, and the first operation part rotates the first bolt. The hanging tree is fixed by pressing the upper end of the first bolt against the bottom of the groove of the hanging tree and separating the upper end from the first latching plate. It is said that

In the hanging structure of the present invention, the lips of the hanging tree are inclined in an upward direction toward each other, and the first hanging plate and the second hanging plate are arranged at both ends in the length direction. are each characterized by a downward slope toward the edge.

In the hanging structure of the present invention, the hanging fitting includes a pair of upper and lower clamping parts that clamp a locking claw provided on the suspended member, and at least the upper clamping part is screwed onto the second bolt. The present invention is characterized in that an upper nut, an upper washer fixed to the lower surface of the upper nut, and an upper vibration isolator fixed to the lower surface of the upper washer are integrally provided.

In the hanging structure of the present invention, the first operation part is a nut non-rotatably fixed to the first bolt, and the second operation part is a nut non-rotatably fixed to the second bolt. It is characterized by

In the hanging structure of the present invention, the support fitting includes a first locking nut that is screwed onto the first bolt and comes into contact with the lower surface of the first latching plate to suppress rotation of the first latching plate. The hanging fitting further includes a second locking nut that is screwed onto the second bolt and comes into contact with the lower surface of the second latching plate to suppress rotation of the second latching plate. It is characterized by

According to the hanging structure of the present invention, the latching plate is hooked on the lips on both sides of the hanging tree made of lip channel steel, and by operating the operation part, the bolt rotates inside the screw hole of the latching plate, and the bolt is rotated inside the screw hole of the latching plate. The upper end of the bolt protrudes upward from the latching plate and comes into pressure contact with the bottom of the groove of the hanging tree, and the upper end of the bolt and the latching plate separate from each other, causing the bolt to tighten inside the hanging tree, causing the hanging tree to tighten. The number of parts is reduced compared to a structure in which the lips of the hanging tree are sandwiched from above and below. In addition, since the upper end of the bolt feels like it is touching the bottom of the groove of the hanging tree, it can be temporarily fixed with an appropriate fixing force, and the height position of the bolt can be easily adjusted.
In addition, since the supporting metal fittings and the fixing structure of the hanging tree that support the hanging tree and the hanging metal fittings and the fixing structure of the hanging tree that hang and fix the suspended member by being hung from the hanging tree have the same shape, The hanging structure can be constructed using different types of parts, reducing material costs, and reducing the number of parts reduces the burden on the construction worker when selecting parts.

According to the hanging structure of the present invention, the lips of the hanging tree are inclined upward toward each other, and both longitudinal ends of the hanging plate are inclined downward toward the edges. , when the hanging plate is fixed by spanning over the lips on both sides of the hanging tree, the hanging plate can be prevented from falling off.Furthermore, by press-contacting the bolt to the bottom of the groove of the hanging tree, the hanging plate can be fixed. The plate comes into pressure contact with the lip, and can prevent the hanging fitting from falling off the hanging tree.

According to the hanging structure of the present invention, at least the upper holding part is integrally formed with the upper nut screwed onto the bolt, the upper washer fixed to the lower surface of the upper nut, and the upper vibration isolator fixed to the lower surface of the upper washer. Since the upper washer and the upper vibration isolator can be held together with the upper nut, the upper washer and the upper vibration isolator can be held together with the upper nut without any extra work to fix the upper washer and the upper vibration isolator to the upper nut. It is possible to prevent the vibration material from falling toward the lower nut side, and it is possible to prevent the hanging member from being hindered from being fixed. Therefore, it is possible to reduce the amount of work required to face upward, and also to prevent forgetting to put in the anti-vibration rubber, thereby improving the construction quality.

According to the hanging structure of the present invention, the operating section is a nut that is non-rotatably fixed to the bolt, so the operating section can be provided at low cost with a simple process such as caulking and fixing the nut to the bolt. , you can easily rotate the bolt with a common wrench.

According to the hanging structure of the present invention, the locking nut that comes into contact with the lower surface of the hanging plate is screwed onto the bolt, so that the upper end of the bolt can be pressed against the bottom of the groove of the hanging tree and tensioned within the hanging tree. By pressing the locking nut against the underside of the latching plate while the latching plate is pressed against the rib, it is possible to prevent the latching plate from rattling or rotating. Prevents the metal fittings from falling off the hanging tree.

FIG. 2 is a perspective view showing the overall configuration of the hanging structure. FIG. 3 is a perspective view showing the external configuration of the hanging fitting. FIG. 3 is an exploded perspective view showing the external configuration of the hanging fitting. FIG. 3 is a sectional view showing a state in which the support fitting is fixed to the beam via the clamp material. The abbreviated perspective view which shows the state where the support metal fitting fixed to the beam was fixed to the hanging tree. FIG. 3 is an abbreviated sectional view showing a state in which a support metal fitting fixed to a beam is fixed to a hanging tree. FIG. 3 is an enlarged cross-sectional view showing the state of the joint between the support fitting and the hanging tree. FIG. 3 is a perspective view showing a state in which a hanging metal fitting is hung and fixed to a hanging tree. An abbreviated sectional view showing a procedure for suspending and fixing a hanging metal fitting to a hanging tree. FIG. 3 is a cross-sectional view showing a state in which a locking claw of a suspended member is hooked to a lower clamping portion of a hanging fitting. FIG. 3 is a cross-sectional view showing a state in which the locking claw of the suspended member is hooked to the lower clamping part of the hanging fitting. FIG. 3 is a perspective view illustrating a state in which a suspended member is suspended and fixed to a hanging fitting.

Hereinafter, embodiments of a hanging fitting 1 and a hanging structure 2 of the present invention will be described with reference to each figure. The suspension structure 2 of this embodiment is a structure for arranging a ceiling-embedded suspended member 3 such as an air conditioner in a ceiling pocket. The suspended member 3 is not limited to an air conditioner, and may be any other member that needs to be fixed to the ceiling, such as a ventilation fan or a rack for fixing wiring and piping.

As shown in FIG. 1, the hanging structure 2 includes a clamp member 5 fixed to a beam 4, a support fitting 6 whose lower part is supported by the clamp member 5 and stands upright, and two supports supported by the support fitting 6. The structure includes a hanging tree 7 installed between the beams 4, a hanging metal fitting 1 suspended from the hanging tree 7, and a suspended member 3 fixed to the hanging metal fitting 1. The beams 4 are H-beams with flanges arranged above and below, and two beams 4 are constructed in parallel to each other.

The clamp member 5 is a metal fitting that is fixed to the lower flange 4a of the beam 4 and supports the lower part of the support metal fitting 6, as shown in FIGS. 4 and 5. The clamp member 5 includes a beam fixing part 51 that sandwiches the lower flange 4a of the beam 4 from above and below, and a support part 52 that projects horizontally from the beam fixing part 51 and supports the lower part of the support fitting 6. have The beam fixing portion 51 has a substantially U-shape in side view, and includes an upper plate portion 53, a lower plate portion 54, and a connecting portion 55 that connects the upper plate portion 53 and the lower plate portion 54. A fixing hole 56 having a female thread is provided through the lower plate portion 54 . A clamp bolt 57 for fixing the clamp member 5 to the beam 4 is screwed into the fixing hole 56 of the lower plate portion 54. With the upper plate part 53 and the lower plate part 54 arranged above and below the lower flange 4a of the beam 4, by tightening the clamp bolt 57, the tip of the clamp bolt 57 comes into pressure contact with the lower flange 4a, and the beam 4 The clamp member 5 is fixed to.

The support portion 52 is formed into a flat plate that is flush with the upper plate portion 53. A receiving groove 58 for receiving the lower part of the first bolt 60 of the support fitting 6 is formed in the support part 52, and the lower part of the first bolt 60 is screwed onto the first bolt 60 when inserted into the receiving groove 58. By sandwiching the support part 52 between the upper and lower fixing nuts 64, the support part 52 and the first bolt 60 of the support fitting 6 are joined. Note that the supporting portion 52 and the supporting metal fitting 6 may be fixed by other methods such as welding in advance.

The support fitting 6 includes a vertically long fully threaded first bolt 60 and a pair of upper and lower fixing nuts that are screwed onto the first bolt 60 and fix the support fitting 6 to the support part 52 by sandwiching the support part 52. 64, a first operation part 61 formed in the middle part of the first bolt 60 for rotating the first bolt 60, and a first operating part 61 provided at the upper part of the first bolt 60 and hooked on the lips 71 on both sides of the hanging tree 7. A first locking plate 62 and a first locking nut 63 that comes into contact with the lower surface of the first locking plate 62 to prevent the first locking plate 62 from rotating with respect to the first bolt 60. There is. The shapes of the first bolt 60, the first operation part 61, the first locking plate 62, and the first locking nut 63 of the support fitting 6 are the same as the second bolt 10, the second operation part 21, and the second locking nut 63 of the hanging fitting 1, which will be described later. Since it has the same shape as the latching plate 12 and the second locking nut 13, detailed explanation will be omitted.

As shown in FIGS. 1 and 5, the hanging trees 7 are horizontally installed between two beams 4, perpendicular to the beams 4, and parallel to each other. The hanging tree 7 is made of lip channel steel that opens downward. The hanging tree 7 is inclined in such a direction that the lips 71 on both sides are raised toward each other.

As shown in FIGS. 2 and 3, the hanging fitting 1 to be hung from the hanging tree 7 includes a fully threaded second bolt 10 that is long in the vertical direction, and a second bolt that is formed at the intermediate part of the second bolt 10. 10, a second latching plate 12 provided on the upper part of the second bolt 10 and hooked on the lips 71 on both sides of the hanging tree 7, and a second latching plate 12 on the bottom surface of the second latching plate 12. A second locking nut 13 that abuts to prevent the second locking plate 12 from rotating with respect to the second bolt 10, and a pair of upper and lower locking claws that sandwich a locking claw 31 provided on the suspended member 3. It has holding parts 14a and 14b. The second operation part 11 is formed by plastically deforming a nut whose lower part is expanded into a flange shape so that it cannot rotate with respect to the second bolt 10. By rotating the second operation part 11 in the circumferential direction of the second bolt 10 using a wrench, the second bolt 10 can also be rotated together with the second operation part 11 .

The second latching plate 12 is a plate formed by bending both lengthwise ends of a rectangular flat plate downward. A screw hole 15 is formed in the center of the second latching plate 12 and penetrates in the vertical direction. The dimensions of the second hanging plate 12 are such that the short side is shorter than the opening width between the lips 71 of the hanging tree 7, and the long side is longer than the opening width. The second latching plate 12 has a screw hole 15 screwed into the second bolt 10, and the second latching plate 12 moves up and down with respect to the second bolt 10 as the second bolt 10 rotates. The second locking nut 13 is a nut that is screwed onto the second bolt 10 on the lower side of the second latching plate 12, and by making it come into contact with the lower surface of the second latching plate 12, the second latching plate 12 from rotating relative to the second bolt 10.

The pair of upper and lower clamping parts 14a and 14b are for vertically clamping the locking claw 31 provided on the suspended member 3. The upper clamping part 14a and the lower clamping part 14b are formed in the same shape. The upper holding part 14a includes an upper nut 16a screwed onto the second bolt 10, an upper washer 17a adhesively fixed to the lower surface of the upper nut 16a, and an upper vibration isolator 18a adhesively fixed to the lower surface of the upper washer 17a. Consisting of The upper nut 16a has a shape to be screwed onto the second bolt 10, and the upper washer 17a and the upper vibration isolator 18a are formed into a cylindrical shape, into which the second bolt 10 is inserted. The upper vibration isolator 18a has a truncated conical tube shape whose diameter decreases downward, and is a member that has viscoelasticity and prevents the vibration of the suspended member 3 from being transmitted to the hanging tree 7 side. Further, the lower clamping part 14b has the same shape as the upper clamping part 14a, which is upside down, and a lower washer 17b is adhesively fixed to the upper surface of the lower nut 16b, and a lower vibration isolating material 18b is fixed to the upper surface of the lower washer 17b. Fixed with adhesive. In this embodiment, each member is adhesively fixed as described above, but the hanging fitting 1 of the present invention is not limited to this, and the upper nut 16a and the upper washer 17a are integrally formed. They may be integrated using other bonding methods.

As mentioned above, the shapes of the first bolt 60, the first operating part 61, the first locking plate 62, and the first locking nut 63 of the support fitting 6 are the same as the second bolt 10 and the second operating part of the hanging fitting 1. 11, the second locking plate 12, and the second locking nut 13 have the same shape, so by sharing the parts, it is possible to reduce raw material costs and improve the construction efficiency of the construction worker.

The suspended member 3 has locking claws 31 formed so as to protrude from each of the four corners. The locking pawl 31 is fixed to the suspended member 3 at its base end, and has a bolt insertion groove 32 cut out in the center of its distal end into which the second bolt 10 of the hanging fitting 1 can be inserted. . The tip of the locking claw 31 is bent upward, and when the second bolt 10 is inserted into the bolt insertion groove 32 and the upper clamping part 14a is hooked on the locking claw 31, the suspended member 3 falls off. It prevents you from doing so.

When constructing the hanging structure 2 formed as described above, first, as shown in FIG. The support fitting 6 is temporarily fixed to the clamp member 5 by inserting it and sandwiching the support part 52 from above and below with the fixing nut 64. Then, with the upper plate part 53 and lower plate part 54 of the beam fixing part 51 of the clamp material 5 arranged above and below the flange 4a on the lower side of the beam 4, the clamp bolt 57 is tightened, and the clamp material 5 and The supporting metal fitting 6 fixed to the clamp material 5 is attached.

Next, insert the upper end of the first bolt 60 of the support metal fitting 6 and the first latch plate 62 from the opening between the lips 71 on one end side of the hanging tree 7, and as shown in FIGS. A first latching plate 62 is installed so as to be caught between the lips 71. Then, rotate the first operation part 61 with a wrench, rotate the first bolt 60 so that the tip of the first bolt 60 protrudes from the first latching plate 62, and attach the tip of the first bolt 60 to the hanging tree. The hanging tree 7 is fixed to the support metal fitting 6 by pressing the first hooking plate 62 against the groove bottom 72 which is the lower surface of the web of the lip 71 . Then, the first locking nut 63 is rotated and brought into pressure contact with the lower surface of the first locking plate 62, thereby preventing the first locking plate 62 from loosening. Further, at the lower part of the first bolt 60, the fixing nut 64 is further tightened so as to come into pressure contact with the support part 52, thereby fixing the support fitting 6 to the clamp member 5. By performing the same process on the other end of the hanging tree 7, the hanging tree 7 is constructed between the two beams 4. Further, the same process is repeated to install two hanging trees 7 in parallel between the beams 4.

Next, as shown in FIGS. 8 and 9, the hanging fitting 1 is suspended and fixed at a position where the locking claw 31 of the suspended member 3 will be placed below the suspended hanging tree 7. Perform the process. Specifically, as shown in FIG. 9A, the upper end of the second bolt 10 of the hanging fixture 1 and the second latching plate 12 are inserted through the opening between the lips 71 of the hanging tree 7. By holding the second latching plate 12 so that its short side is in the width direction of the opening, the short side of the second latching plate 12 is shorter than the opening width of the hanging tree 7. can be inserted into.

Then, as shown in FIG. 9(B), by horizontally rotating the second hanging plate 12 by 90 degrees, the end of the long side longer than the opening width is hooked on the lip 71, and the hanging tree 7 is attached to the lip 71. It will be constructed between 71. After that, rotate the second operation part 11 with a wrench, rotate the second bolt 10 so that the tip of the second bolt 10 protrudes from the second latching plate 12, and attach the tip of the second bolt 10 to the hanging tree. At the same time, the second hanging plate 12 is pressed against the upper surface of the lip 71, and the hanging tree 7 is suspended and fixed to the hanging fitting 1. The lips 71 of the hanging tree 7 are inclined upward toward each other, and both ends of the second hanging plate 12 in the length direction are inclined downward toward the edges. When the latching plate 12 is pressed against the upper surface of the lip 71 of the hanging tree 7, the second latching plate 12 is more firmly fixed to the lip 71, thereby preventing the hanging fitting 1 from falling off from the hanging tree 7. It can be prevented.

Then, as shown in FIG. 9C, the second locking nut 13 is rotated and brought into pressure contact with the lower surface of the second locking plate 12, thereby preventing the second locking plate 12 from loosening. Then, the operation of suspending and fixing the hanging fitting 1 to the hanging tree 7 is repeated at four locations above the location where the locking claws 31 are arranged.

Next, the height of the lower clamping part 14b provided at the bottom of the second bolt 10 of the hanging fitting 1 is adjusted to the height at which the locking claw 31 of the suspended member 3 will be arranged. , the upper clamping part 14a is arranged above so as to be separated from the lower clamping part 14b. Then, as shown in FIG. 10, the suspended member 3 is lifted and the locking pawl 31 is hooked onto the lower holding portion 14b. When the locking claws 31 are hooked to the lower clamping part 14b at each of the four locations where the hanging fitting 1 is provided, the upper clamping part 14a approaches the lower clamping part 14b, as shown in FIGS. 11 and 12. The suspension structure 2 is completed by rotating the hanging member 3 in the direction shown in FIG. At this time, since the upper washer 17a and the upper vibration isolator 18a are integrated with the upper nut 16a, the upper holding part 14a can be prevented from falling to the lower holding part 14b, and the suspended member 14a can be prevented from falling to the lower holding part 14b. This can prevent the work of hooking the material onto the lower holding portion 14b from being hindered. Therefore, it is possible to reduce the burden of work when facing upward, and it is also possible to prevent forgetting to insert the vibration isolators 18a and 18b, thereby improving construction quality.

It goes without saying that the embodiments of the present invention are not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the idea of the present invention.

The hanging fitting 1 and the hanging structure 2 according to the present invention are suitable as a fitting and structure for installing a suspended member 3 such as a ceiling-embedded air conditioner.

1 Hanging bracket 2 Hanging structure 3 Suspended member 4 Beam 6 Supporting bracket 7 Hanging tree 10 Second bolt (bolt)
11 Second operation section (operation section)
12 Latching plate 13 Locking nut 14a Upper clamping part 16a Upper nut 17a Upper washer 18a Upper vibration isolator

Claims (5)

A clamp material fixed to the lower flange of the H-shaped steel beam,
a support fitting for supporting a hanging tree made of horizontal lip channel steel whose lower part is supported by the clamp member and whose upper end is open downward ;
the hanging tree supported by the support fitting;
a hanging metal fitting that is hung from the hanging tree and suspends and fixes the suspended member;
the suspended member fixed to the hanging fitting;
A hanging structure comprising:
The hanging metal fitting is formed such that the length direction of the hanging metal fitting is longer than the opening width of the hanging tree, and a second latching plate that is inserted into the inside of the hanging tree and hooked on the lips on both sides of the hanging tree. a second bolt that is screwed into a screw hole provided in the second latching plate and whose upper end is capable of moving in and out of the second latching plate upwardly; and a second operating part that rotates the second bolt. , wherein the second bolt is suspended and fixed to the hanging tree by pressing its upper end against the groove bottom of the hanging tree and separating the upper end and the second latching plate. and
The support fitting includes a first latching plate having the same shape as the second latching plate, a first bolt having the same shape as the second bolt, and a first operating portion having the same shape as the second operating portion. has
The first latching plate is inserted into the hanging tree and hooked to the lips on both sides of the hanging tree, and the first bolt is screwed into a screw hole provided in the first latching plate, The upper end can move upwardly into and out from the first latching plate, and the first operation part rotates the first bolt, and the upper end of the first bolt is attached to the bottom of the groove of the hanging tree. A hanging structure characterized in that the hanging tree is fixed by pressing the upper end and the first hanging plate apart . the lips of the hanging tree are inclined upwardly toward each other;
2. The hanging structure according to claim 1 , wherein the first latching plate and the second latching plate have both lengthwise end portions slanting downward toward the edge. The hanging fitting includes a pair of upper and lower clamping parts that clamp a locking claw provided on the suspended member,
At least the upper holding part is integrally provided with an upper nut screwed onto the second bolt, an upper washer fixed to the lower surface of the upper nut, and an upper vibration isolator fixed to the lower surface of the upper washer. The hanging structure according to claim 1 or claim 2, characterized in that: The first operation part is a nut non-rotatably fixed to the first bolt,
The hanging structure according to any one of claims 1 to 3, wherein the second operation part is a nut that is non-rotatably fixed to the second bolt . The support fitting further includes a first locking nut that is screwed onto the first bolt and comes into contact with the lower surface of the first latching plate to suppress rotation of the first latching plate,
The hanging fitting further includes a second locking nut that is screwed onto the second bolt and comes into contact with the lower surface of the second latching plate to suppress rotation of the second latching plate. The hanging structure according to any one of claims 1 to 4.

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