JPH05923B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention provides a method for constructing a concrete building such as RC construction or SRC construction, by continuously installing temporary structures in the ceiling from the construction of the frame until the completion of finishing construction. The present invention relates to a suspending method and a suspending device for a temporary object such as a suspended lighting device.

(b) Technical background Figure 9 shows a lighting system as a temporary structure.
This is an example of an F cable driving type lighting device, which is the most widely used lighting device.

In this example, the lighting device a uses an F cable c buried in an upper floor slab b as its power source, and the F cable c and the lighting fixture a are connected via an exposed electric wire d. In the case of a double ceiling as shown, the exposed portion e of the F cable c extends until it projects to the lower surface side of the ceiling surface f, and is connected to the exposed electric wire d at this projecting portion g.

The following problems have been pointed out in such F-cable built-in lighting devices.

In other words, since the lighting device is necessary for finishing work on walls and floors even after the ceiling is finished, the finishing of the F cable penetration part is left unfinished during the finishing process of the entire ceiling, and when this lighting device is no longer needed, The lighting fixture a and the exposed part e of the F cable c have to be removed, and that part has to be repaired and finished. In general, in the case of a double ceiling, the method is to leave part f' pasted and finish the left part f' after removing exposed part e of lighting fixture a and F cable c, and in the case of a straight ceiling, lighting fixture a , After removing the exposed part e of the F cable c, concrete was poured into part b' of the upper floor slab b, mortar repaired, sanded, and finished, which required a great deal of effort. It has become a thing. In addition, since the F cable c must be wired after the slab reinforcement is completed and before concrete is poured, it is a short and intensive work, which requires the hands of many people and is desirable because the date and time is limited. Unable to arrange work. Since the F cable c is buried in the slab, it is disposable and is uneconomical. Since the installation position of the lighting fixture a in the height direction is fixed, a stepladder is required when replacing the light bulb or repairing a damaged part, and a lot of effort is required for maintenance management.

In addition to the above-mentioned lighting equipment, there are also lily of the valley lamps, in which a large number of lighting equipment such as lighting equipment a in Figure 9 is attached at equal intervals to a mobile electric wire (such as a cab tire cable that can be carried in a charged state), and a mobile electric wire. Many lighting devices are also used that use exposed wiring as a power source, such as mobile floodlights that have relatively large headlights at the end of electric wires. However, as ceiling construction progresses, these systems lose the means for hanging them from the ceiling, so they must rely solely on the above-mentioned F cable driven lighting system, and the following problems have been pointed out.

That is, if the light bulb comes close to the wall surface, the heat may discolor the finishing material, or if the light bulb is flammable, it may lead to a fire. When relying on F-cable driven lighting equipment, it is difficult to ensure sufficient illuminance, so in finishing work jobs that require a certain level of illuminance, workers individually use hand lamps,
Mobile lighting equipment such as floodlights must be carried around, and many safety-related equipment are brought in, which increases the risk of power outages, fires, electric shocks, etc.

In addition, in recent construction work, a wide variety of temporary structures are being used, and there is a strong desire to eliminate the above-mentioned ceiling addition work.

(c) Prior art and problems Based on the above-mentioned technical background, the applicant has previously developed a special technology for the purpose of omitting additional work on ceilings and solving various problems when temporary structures are electrical equipment. Application No. 58-248750 (Japanese Unexamined Patent Publication No. 60-141963) is proposed.

According to the previous proposal, since the temporary structures are suspended by thin wires, the target temporary structures are limited in terms of weight, and it is not possible to adequately respond to the current situation where a wide variety of temporary structures are used. There is a problem.

(d) Purpose of the Invention The present invention has been made by improving the previous proposal of the present applicant, and its purpose is to improve the suspension force of temporary structures.

(E) Structure of the Invention In order to achieve this object, the method for suspending temporary structures according to the present invention is to suspend a temporary structure from the lower side of an upper floor slab of a building under construction or to an attachment on the lower surface of the upper floor slab. , a suspension strip consisting of a thin band with a linear cut surface that blends with the joints of the finished surface and the boundaries with the attached objects is fixed and suspended, and is slidable with respect to the suspension suspension. The device for suspending a temporary structure according to the present invention is capable of suspending a temporary structure by attaching a coupling body that is prevented from slipping by frictional force, and suspending the temporary structure through this coupling body. It has a suspension body that is fixed to and hangs down from the lower surface side of the floor slab or the attachment on the lower surface side of the upper floor slab, and a joint body that is interposed between the suspension body and the temporary structure, and the suspension body consists of a thin band whose cut surface is linear and blends with the joint part of the finished surface and the boundary line with the attached object, and the connected body is connected to the first connecting part that connects to the suspension body and to the temporary structure. and a second coupling part.

(f) Effect In the present invention, a bonded body is attached to a suspension member fixed to the lower surface of an upper floor slab of a building under construction or attached to the lower surface of the upper floor slab and suspended. Non-slip or locking connection. Then, a temporary structure is attached to the combined body. Furthermore, the combined body can be slid down and down relative to the suspension body.

(G) Embodiments of the Invention Hereinafter, embodiments of a method for suspending a temporary structure and a suspension device according to the present invention will be described based on FIGS. 1 to 7.

As shown in Figures 1 and 2, a temporary structure consisting of a lily of the valley lamp 2 is suspended on the underside of the upper floor slab 1, and the lily of the valley lamp 2 is buried under the lower side of the upper floor slab 1. It is suspended by a suspension member 4 fixed to a fixed member 3. The fixing member 3 has a concave cross section, and the suspender 4 has its upper end fixed to a protrusion 3b within the concave portion 3a. This fixing member 3 is prevented from being removed from the upper floor slab 1 by a flange-shaped projection 3c formed around the upper end, and as a means of embedding it in the upper floor slab 1, as shown in FIG. When the formwork work is completed, the slab may be temporarily fixed to the slab formwork 5 using nails 6 and then cast. At this time, if the hanging body 4 is rolled up and stored in the recess 3a of the fixing member 3, the hanging body 4 will hang down as shown in FIG. 4 when the slab formwork 5 is removed. . In addition, FIG. 7 shows another means for fixing the suspension member 4 to the upper floor slab 1, in which the suspension member 4 is fixed to the installation pipe 7 attached to the lower surface side of the upper floor slab 1. be. That is, the suspension body 4
is fixed directly or indirectly to the lower surface side of the upper floor slab 1 or to the attachments on this lower surface side and hangs down, and there is no problem in adopting other fixing means in addition to the illustrated embodiment. be.

The Suzuranto 2 has a power line 2b and a power line 2b having a connector plug 2a connected to a distribution board at one end.
A large number of lighting fixtures 2c are arranged at predetermined intervals.
The suspension member 4 is suspended from the lower surface side of the upper floor slab 1 in the method according to the present invention. and Suzuranto 2. In the drawing, a combination body 8 is shown as a means for connecting the suspension body 4 and the lily of the valley lamp 2 as a device according to the present invention.

The suspension body 4 is a thin strip, and the combination body 8 is appropriately selected depending on the shape of the suspension body.
The shape requires at least a first connecting portion 8a that connects to the hanging support 4 and a second connecting portion 8b that connects to the temporary lily of the valley lamp 2. FIG. 5 shows a suspension device according to the present invention, in which a combined body 8
The figure shows a case in which a plurality of notches are provided as the first joint portion 8a and a clip structure is provided as the second joint portion 8b. By inserting the thin band that is the suspension member 4 into the cut that is the first connection portion 8a, the suspension member 4 and the combination body 8 are coupled by frictional force. This bonding force is the first bonding portion 8
The frictional force can be adjusted by adjusting the number of insertions of the suspension body 4 into the plurality of notches a, and the suspension body 4 is biased to maintain its wound state. By doing so, you can increase the frictional force.
Regarding the clip structure which is the second joint part 8b,
By fitting the power wire 2b of the Lily of the Valley lamp 2, the Lily of the Valley lamp 2 and the combined body 8 can be combined. Incidentally, this second coupling portion 8b may have a hook structure as shown in FIG.

At the beginning of the construction work, the structure is suspended as shown in Figure 1, and when moving from frame work to construction of the ceiling wall 9, the connecting part of the joint body 8 to the suspension body 4 is lowered as shown in Figure 2. let For this lowering, since the connection between the suspension body 4 and the coupling body 8 is a friction-based non-slip coupling or locking coupling, it is sufficient to slide the coupling body 8 down with respect to the suspension body 4. At this time, if a telescoping operating rod 10 as shown in FIG. 6 is used, the operation can be easily performed on the floor without using a stepladder. Further, the operating rod 10 can also be used to extend the suspension body 4 when it is urged into a wound state.

In this way, in the state shown in FIG. 2, if the hanging support 4 is positioned at the joint part of the ceiling wall 9, there is no need to specially process the board material etc. of the ceiling wall 9. If you no longer need the Suzuran Tou 2 after installation, you can cut the suspension holder 4.
Since the cut surface is minute, there is no visible damage. Further, although not shown, in the case of a direct ceiling with only the upper floor slab 1, when the fixing member 3 is used, it is only necessary to provide a blindfold in addition to cutting the hanging support 4. Further, when the fixing member 3 is buried, its size is limited, and therefore the length of the elongated body 4 that can be stored inside is limited. Therefore, when applying to areas with high floor heights such as open ceilings, the 8th
As shown in the figure, it is extended using a connector 10 having hooks 11 at both ends.

(h) Effects of the invention As described above, in the case of a double ceiling, the method for suspending a temporary structure according to the present invention requires that a part of the ceiling surface be left affixed until the temporary structure is removed, as in the past. Since there are no joints and joints can be used, the efficiency of construction on the ceiling surface is improved, and there are construction effects such as eliminating the need for additional repair work even in the case of direct ceilings, and making temporary construction easier. The effect of resolving various problems in electrical equipment such as lights, that is, the effect of the applicant's previous proposal, is ensured, and since the suspension body is made of a thin strip, it is easier to use for temporary construction than with a simple thin wire. It has the effect of improving the hanging power of.

Further, since the device for suspending a temporary structure according to the present invention has a coupling body interposed between the suspension body and the suspended object, the suspension height of the temporary suspended structure can be adjusted by a simple means such as sliding lowering. This method is extremely effective in achieving the effects of the method described above.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views of the implementation state of the present invention,
FIG. 3 is a sectional view showing an example of mounting the fixing member 3;
The figure is a sectional view showing the state after demolding in Figure 3,
FIG. 5 is a perspective view showing an embodiment of the combined body, FIG. 6 is a perspective view of a tool used in the operation of the present invention, and FIG. 7 is a sectional view showing another embodiment of the fixing means for the hanging body. ,
FIG. 8 is a front view showing an extension coupling according to the present invention, and FIG. 9 is a sectional view illustrating the technical background of the present invention. 1...Upper floor slab, 2...Lily of the valley light (temporary construction), 4...Hanging body, 8...Connection body, 8a...First connection part, 8b...Second connection part.

Claims (1)

[Scope of Claims] 1. On the lower surface side of the upper floor slab of a building under construction or on the attachments on the lower surface of the upper floor slab, the cut surface is linear and there are joints on the finished surface and boundaries with the attachments. A hanging body made of a thin strip that blends with the wire is fixed and suspended, and a connecting body that can slide on the hanging body and is prevented from slipping by frictional force is attached to the hanging body. A method for suspending a temporary object, characterized by suspending the temporary object. 2 Hanging bodies that are fixed to and suspended from the lower surface of the upper floor slab of a building under construction or attachments on the lower surface of the upper floor slab, and those that are interposed between this suspending body and temporary structures. The hanging body is made of a thin band whose cut surface is linear and blends with the joint part of the finished surface and the boundary line with the attached object, and the binding body is connected to the hanging body. A device for suspending a temporary object, comprising a first connecting section and a second connecting section that connects to the temporary object.