JPH061507U - Suspension device for ceiling members of buildings - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the ceiling thickness is different, it can be installed with one device so that it cannot be pulled out, and it can be restored vertically even if a person hits it. [Structure] A plastic tubular body 21 having a through hole 22 formed in the center and a downward step 23 formed on the outer periphery of the upper part.
A plurality of projecting pieces 24 formed integrally with the tubular body 21 below the downward step 23 of the tubular body 21 and opened upward, and arranged below the downward step 23 of the tubular body 21. The spring 26 provided, the cap 27 tightly fitted to the upper portion of the through hole 22 of the tubular body 21 and having the female screw hole 28 formed at the center thereof, and the cap 27 of the cap 27 inserted into the through hole 22 of the tubular body 21 from below. A bolt 31 that is screwed into the female screw hole 28 is provided so that the projecting piece 24 at any step does not come out of the tubular body 21, and the spring 26 restores the tubular body 21 vertically.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ceiling member suspending device for a structure used for suspending members such as channels, angles, etc. for mounting pipes, ducts, lighting equipment, ceiling base materials, etc. from the ceiling.

[0002]

[Prior art]

 Ceiling member suspension that has been conventionally used to suspend members such as channels, angles for mounting pipes, ducts, lighting fixtures, ceiling base materials, etc. from the ceiling on the ceiling of buildings such as buildings and underpasses. An example of the lowering device will be described with reference to the vertical cross-sectional view of FIG. 6 and the bottom view of FIG. 7. A circular lid-like portion 2 is integrally formed on the upper end of a tubular body 1 made of metal such as iron. An annular groove 3 is engraved on the outer periphery of the, and an internal thread 4 is engraved on the inside. A spring 5 and a washer 6 are loosely fitted on the outer side below the lid portion 2.

A cylindrical body 7 made of synthetic resin is tightly fitted to the outer periphery of the tubular body 1 from below. An annular protrusion 8 is provided on the upper portion of the inner surface of the tubular body 7, and the tubular body 7 is fitted to the outer periphery of the tubular body 1 so that the annular protrusion 8 is engaged with the annular groove 3 of the tubular body 1. Then, the tubular body 7 will not fall off the tubular body 1.

At the upper end of the tubular body 7, a plurality of fan-shaped projecting pieces 9 as shown in FIG. 7 are formed integrally with the tubular body 7 in a state of being opened upward. At the lower end of the tubular body 7, a plurality of thin projecting pieces 10 are integrally formed with the tubular body 7 in a state of horizontally projecting toward the center so as to cover the lower end of the tubular body 7. Has become.

A method of using the above-described conventional ceiling member suspension device will be described below.

FIG. 8 is a vertical cross-sectional view showing an example of a ceiling of a building, where 11 is a deck plate made of an iron plate, 12 is a heat insulating material such as styrene attached as necessary, and the deck plate 11 The lower surface of the figure shows a state in which no covering material is attached. Then, decide the position to install the ceiling member suspension device, and use the drill 13 to make a hole in the deck plate 11 that has a diameter with a slight margin in the outer diameter of the tubular body 7 shown in FIGS. Open fourteen. In this case, in the ceiling to which the heat insulating material 12 is attached, the holes 14 are simultaneously formed in the heat insulating material 12.

FIG. 9 shows a ceiling where only the deck plate 11 is not attached with the heat insulating material 12. When the cylindrical body 7 is inserted from above the hole 14 formed in the deck plate 11 and pushed downward, As shown in FIG. 5, the washer 6 abuts the upper surface of the heat insulating material 12, the spring 5 is in a compressed state, the projecting piece 9 is pushed by the hole 14, and the open upper part is elastically deformed toward the center while the hole is deformed. After passing through 14, the projecting piece 9 on the lower surface of the deck plate 11 is restored to the open state again by elasticity. The compressed spring 5 tries to pull the tubular body 7 upward through the lid-shaped portion 2, but the upper end of the overhanging piece 9 that is restored to the upward open state is in contact with the lower surface of the deck plate 11. In order to prevent the tubular body 7 from moving upward, the metallic tubular body 1 is attached to the deck plate 11 so as not to come off.

After attaching the tubular body 1 to the deck plate 11 as shown in FIG. 10, concrete (not shown) is placed on the deck plate 11 to expose a lid exposed on the upper surface of the deck plate 11. The shape portion 2, the spring 5, and the washer 6 are embedded in concrete, and a coating material such as urethane foam (not shown) is sprayed on the lower surface of the deck plate 11. At this time, the protruding piece 10 functions to prevent the coating material from entering the inside of the tubular body 7 and the tubular body 1. After the step of spraying the covering material is completed, a bolt (not shown) is screwed into the female screw 4 of the tubular body 1 from below to hang a required ceiling member such as a channel, an angle for suspending pipes, ducts, and lighting equipment. It will be.

However, when the heat insulating material 12 provided on the deck plate 11 is thick as shown in FIG. 11, the tubular body 1 should be long and the tubular body 7 should be short. In addition, the number of types of lengths of the tubular body 1 and the tubular body 7 to be prepared must be increased depending on the thickness of the heat insulating material 12, and there is a drawback that management of parts is difficult.

Therefore, ceiling member suspension devices as shown in FIGS. 12 and 13 have come to be used.

FIG. 12 is a vertical cross-sectional view showing still another example of such a conventional device, and FIG. 13 is a bottom view of FIG. 12, in which a tubular body 15 made of metal such as iron has a circular upper end. The lid-shaped portion 16 is integrally formed, and an internal thread 17 is engraved inside.

A cylindrical body 18 made of synthetic resin is closely fitted to the outer periphery of the tubular body 15. A flange 19 is integrally formed with the tubular body 15 on the outer periphery near the upper part of the tubular body 18, and a plurality of arcuate projecting pieces 20 as shown in FIG. It projects upwards across the steps. At the lower end of the tubular body 18, a plurality of thin projecting pieces 10 are integrally formed on the tubular body 18 in a state of horizontally projecting toward the center, and cover the lower end of the tubular body 18. ing.

Even when the ceiling member suspension device of FIGS. 12 and 13 described above is used, as shown in FIG. 8, the drill 13 is used and the outer diameter of the tubular body 18 is applied to the heat insulating material 12 and the deck plate 11. A hole 14 having a diameter including a slight allowance is drilled. Then, the tubular body 18 is inserted from above the hole 14 and pushed downward, and the collar 19 is brought into contact with the upper surface of the heat insulating material 12, as shown in FIGS. When the tubular body 18 is pushed into the hole 14, the projecting piece 20 is pushed by the hole 14, and the open upper part elastically deforms toward the center while passing through the hole 14 and has finished passing through the hole 14. Is restored to the open state again due to elasticity.

In this case, when the heat insulating material 12 is thin, as shown in FIG. 14, the projecting pieces 20 of many steps in the lower direction pass through the holes 14 and are restored to the state of being opened upward, and the uppermost step thereof is restored. The upper end of the protruding piece 20 is in contact with the lower surface of the deck plate 11 to prevent the tubular body 18 and the tubular body 15 from coming off. Further, as shown in FIG. 15, when the heat insulating material 12 is thick, a considerable number of projecting pieces 20 cannot pass through the holes 14 from above, and the projecting pieces 20 remain pushed by the holes 14 and the projecting pieces in the lower step are not formed. 20 passes through the hole 14 and returns to the state of being opened upward so that the tubular body 18 and the tubular body 15 are prevented from coming off.

As described above, in the ceiling member suspension device of FIGS. 12 and 13, if only one type of long tubular body 18 is prepared, the heat insulating material 12 can be removed from the hole 14 regardless of whether it is thin or thick. Although it can be installed without a spring, unlike the one shown in FIG. 7, since the spring 5 is not provided, the worker's foot hits the lid-like portion 16 when working on the heat insulating material 12 before placing concrete. Since the restoring force of the spring does not work, there is a drawback that the tubular body 15 and the tubular body 18 remain tilted.

[0016]

[Problems to be solved by the device]

 The present invention eliminates the above-mentioned conventional drawbacks, and can be installed so that even if the ceiling thickness is different, it can be installed with one device so that it can be restored vertically even if a person hits it. It is an object of the present invention to provide a ceiling member suspension device for an object.

[0017]

[Means for Solving the Problems]

 The apparatus for suspending a ceiling member of a building according to the present invention comprises a plastic tubular body having a through hole in the center thereof and a downward step on the outer periphery of the upper part, and a plurality of steps below the downward step of the tubular body. A plurality of overhanging pieces that are integrally formed with the tubular body and that are open upward, a spring that is disposed below the downward step of the tubular body, and a tight seal on the upper part of the through hole of the tubular body. A cap having a female screw hole formed in the center thereof and a bolt inserted into the through hole of the tubular body from below and screwed into the female screw hole of the cap. .

[0018]

[Action]

 Even if the ceiling thickness changes, one of the overhanging pieces formed over multiple steps acts as a retainer, and even if a person hits it, the spring restores vertically. .

[0019]

【Example】

 Next, an embodiment of this invention will be described.

FIG. 2 is a vertical cross-sectional view showing an essential part of an embodiment of the present invention. A tubular body 21 made of plastic has a through hole 22 at the center thereof. A downward facing step 23 is formed on the outer periphery of the upper part. Further, a plurality of fan-shaped projecting pieces 24 as shown in the bottom view of FIG. 3 are formed on the outer periphery of the tubular body 21 below the downward step portion 23 in a plurality of steps in an upwardly opened state. It is formed integrally with the body 21. At the lower end of the tubular body 21, a plurality of thin projecting pieces 25 are integrally formed with the tubular body 21 in a state of horizontally projecting toward the center and cover the lower end of the tubular body 21. There is.

A spring 26, which surrounds the outer circumference of the tubular body 21 and has a gradually increasing downward diameter, is disposed below the downward step 23 of the tubular body 21. A cap 27 made of metal such as iron is tightly fitted to the upper part of the so as not to come out. A female screw hole 28 is formed in the center of the cap 27 from below.

A method of using the ceiling member suspension device shown in FIGS. 2 and 3 will be described below.

FIG. 1 is a longitudinal sectional view showing an assembled state of an embodiment of the present invention, 11 is a deck plate made of an iron plate, and 14 is a drill 13 as shown in FIG. It is the hole of the deck plate 11 that was made. This ceiling is a ceiling without the heat insulating material 12 as shown in FIG. 10, 29 is concrete that is placed on the deck plate 11 after mounting the ceiling member suspension device, and 30 is also the ceiling member suspension device. It is a covering material such as urethane foam that is sprayed onto the lower surface of the deck plate 11 after the device is attached.

In FIG. 1, when the ceiling is only the deck plate 11, when the tubular body 21 is inserted from above the hole 14 and pushed downward, the overhanging pieces 24 are pushed into the hole 14 sequentially from the lower one. The open upper part elastically deforms toward the center and passes through the hole 14, and the overhanging piece 24 on the lower surface of the deck plate 11 is restored to the open state again by the elasticity, and the spring 26 causes the spring 26 of the deck plate 11 to open. It is in a compressed state between the upper surface and the downward step 23. The compressed spring 26 tries to push the tubular body 21 upward, but in order to prevent the tubular body 21 from moving upward by contacting the lower surface of the deck plate 11 with the upper protruding piece 24 open. The tubular body 21 is attached to the deck plate 11 so as not to come off.

Next, concrete 29 is cast on the upper surface of the deck plate 11 to construct a floor or the like on the upper floor. When the concrete 29 is cast, the feet of the worker are capped. Even if the tubular body 21 is tilted by hitting 27, the tubular body 21 can be restored to the vertical state by the reaction force of the spring 26 in the compressed state.

Subsequently, a covering material 30 such as urethane foam is sprayed on the lower surface of the deck plate 11. At this time, the protruding piece 25 (see FIG. 2) in a horizontally protruding state serves to prevent the covering material 30 from entering the inside of the tubular body 21. After the step of spraying the covering material 30 is completed, the projecting piece 25 is pushed open and the bolt 31 is inserted into the through hole 22 from below, the male screw 32 at the tip of the bolt 31 is screwed into the female screw 28 of the cap 27, and the pipe, duct, The required ceiling members such as a channel and an angle for attaching a lighting fixture, a ceiling base material and the like are suspended by the bolts 31.

FIG. 4 is a vertical cross-sectional view showing another assembled state of the embodiment of the present invention. In this case, the ceiling has a deck plate 11 on which a heat insulating material 12 is attached. Reference numeral 29 is concrete that is placed on the deck plate 11 after mounting the ceiling member suspension device.

In the state shown in FIG. 4, before the concrete 29 is poured, if the tubular body 21 is inserted from above the hole 14 and pushed downward, the overhanging piece 24 in the upper stage cannot pass through the hole 14. Although it is still pushed by the hole 14, the lower and middle overhanging pieces 24 are elastically deformed and pass through the hole 14 to be restored to the state of being opened upward again. Since the tubular body 21 is prevented from moving upward by contacting the lower surface of the deck plate 11 in the opened state, the tubular body 21 is attached to the deck plate 11 so as not to come off.

FIG. 5 is a vertical sectional view showing still another assembled state of the embodiment of the present invention, in which the ceiling has a thick heat insulating material 12 mounted on a deck plate 11. It is the ceiling, and in this case, when the tubular body 21 is inserted from above the hole 14 and pushed downward in the state before the concrete 29 is poured, the overhanging piece 24 in the upper stage and the overhanging piece 24 in the lower stage form the hole 14. Although it cannot pass through the hole 14, it is still pushed by the hole 14, but the overhanging piece 24 in the lower stage passes through the hole 14 while elastically deforming and is restored to the state of being opened upward again. In order to prevent the tubular body 21 from moving upward by contacting the lower surface of the deck plate 11 with the overhanging piece 24 open, the tubular body 21 is attached to the deck plate 11 so as not to come off.

In both the case of FIG. 4 and the case of FIG. 5, after the pipe upper body 21 is attached to the hole 14, concrete 29 is placed on the upper surface of the deck plate 11 to construct a floor or the like on the upper floor. However, even if the operator's foot hits the cap 27 and the tubular body 21 is tilted while the concrete 29 is being cast, the tubular body 21 can be restored to the vertical state by the reaction force of the spring 26 in the compressed state. .

[0031]

[Effect of device]

 According to this invention, since a plurality of projecting pieces 24 that open upward in a plurality of steps are formed below the downward step 23 of the tubular body 21, whether the ceiling is thin or thick Since the overhanging piece 24 returns to the open state by passing through the hole 14 in the ceiling to prevent the tubular body 21 from coming off, there is an effect that one device can be used for a thin ceiling or a thick ceiling. .

Further, since the spring 26 disposed below the downward step 23 is compressed to generate a reaction force, even if a person hits and leans while performing concrete pouring work on the ceiling, etc. The effect of restoring the vertical state and not hindering the suspension of the ceiling member is obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an assembled state of an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing a main part of an embodiment of the present invention.

FIG. 3 is a bottom view of FIG.

FIG. 4 is a vertical sectional view showing another assembled state of the embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view showing still another assembled state of the embodiment of the present invention.

FIG. 6 is a vertical sectional view showing an example of a conventional device.

FIG. 7 is a bottom view of FIG.

FIG. 8 is an enlarged vertical cross-sectional view showing a state in which a hole for mounting a ceiling member suspension device for a building is formed.

FIG. 9 is a vertical cross-sectional view showing a state in which the conventional device is attached to the ceiling.

FIG. 10 is a vertical cross-sectional view showing a mounted state of a conventional device.

FIG. 11 is a vertical cross-sectional view showing a mounted state of another example of the conventional device.

FIG. 12 is a vertical sectional view showing still another example of the conventional device.

FIG. 13 is a bottom view of FIG.

FIG. 14 is a vertical cross-sectional view showing a mounting state of the thing of FIG.

FIG. 15 is a vertical cross-sectional view showing another attachment state of that of FIG. 12;

[Explanation of symbols]

 21 Tubular Body 22 Through Hole 23 Downward Stepped Part 24 Overhanging Piece 26 Spring 27 Cap 28 Female Threaded Hole 31 Bolt

Claims (1)

[Scope of utility model registration request] 1. A plastic tubular body having a through hole at the center thereof and a downward step portion formed on an outer periphery of an upper portion, and the tubular body integrated with the tubular body in a plurality of steps below the downward step portion of the tubular body. A plurality of overhanging pieces formed in the above and opened upward, and a spring disposed below the downward step of the tubular body,
A cap tightly fitted to an upper portion of the through hole of the tubular body and having a female screw hole formed in the center thereof; An apparatus for suspending a ceiling member of a building, which is characterized in that