JP2003074158A - Temporary fixing device for the main body of roof drain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the execution work and eliminate the generation of rubbish by improving the main body of a roof drain to be used in a deck plate method. SOLUTION: A coupling means for connecting a roof drain main body 1 to a drive metal fittings 5 is constituted of a plurality of coupling rods 12 for coupling support plate 7 of driving fitting 5 to the receiving dish portion 2 of the roof drain main body 1. In this way, when poured concrete s is hardened, the coupling rod 12 is embedded in concrete s, and it is not required to remove the coupling rod 12 after the installing work for the roof drain main body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary roof drain main body fixing device applied to a deck plate construction method.

[0002]

2. Description of the Related Art There is known a deck plate construction method in which a roof drain main body is embedded in a surface layer portion of concrete to be cast on a deck plate.

As a temporary fixing device for the roof drain main body used in this method, as disclosed in Japanese Utility Model Publication No. 1-26826, a fitting hole a formed in a deck plate p (see FIG. 7) is used. A driving fitting d composed of a concrete blocking cylinder b to be inserted and a support plate c which is provided around the upper edge of the blocking cylinder b and fixed to the upper surface of the deck plate p, and a drain pipe portion of the roof drain body e. The cylindrical spacer h fitted onto the outer peripheral surface of the driving metal fitting f and mounted on the upper surface of the driving metal fitting d so as to surround the cylindrical hole g of the driving metal fitting d, and the tray spacer i of the roof drain body e, which is attached from above. Upper connecting piece j and a lower connecting piece m that abuts against a locking edge k provided in the driving metal fitting d from below. Further, the upper connecting piece j is erected on the lower connecting piece m. Wing nut screwed to the protruding end of the screw rod n that is inserted from below The present applicant previously proposed that the wing nut q is composed of a roof drain body e and a connecting means r for sandwiching the driving metal fitting d via a cylindrical spacer h. Has been done.

In the construction using such a temporary fixing device, the roof drain main body e and the driving metal fitting d are previously connected in a pinching manner by the connecting means r, and the fitting holes a are inserted in the deck plate p. After drilling, the concrete blocking cylinder b of the driving fitting d is inserted into the fitting insertion hole a, and the support plate c is placed on the deck plate p around the hole for welding or screwing. As a result, the roof drain body e and the driving metal fitting d
The connection body consisting of and is temporarily fixed to the deck plate p. Next, after concrete s is placed on the deck plate p and solidified, the wing nut q of the connecting means r is removed and the upper connecting piece j
Is removed, and the lower connecting piece m is removed together with the screw rod n, whereby the installation work of the roof drain body e is completed.

In such a structure, therefore, the position of the roof drain main body e can be accurately and optimally maintained without being affected by the uneven state of the mounting position of the deck plate p, and it can be performed on site. Since the construction is almost completed by fixing the connecting body to the deck plate p and placing concrete s, there is an advantage that the mounting construction can be performed quickly and easily.

[0006]

By the way, in the above-mentioned temporary fixing device for the roof drain main body, the roof drain main body e and the driving metal fitting d are connected until the cast concrete s is solidified. The connecting means r for connecting the screw rod n with the lower connecting piece m having the screw rod n, the upper connecting piece j through which the screw rod n is inserted, and the projecting end of the screw rod n are screwed together to generate a tightening action. It is made up of a wing nut q and
Since the connecting means r hinders post-installation work such as connection of the downspout pipe after the installation of the roof drain main body e, after the solidification of the concrete s, the work for removing the wing nut q and the upper connection piece j and The removal work of the lower connecting piece m had to be performed without fail.

The wing nut q, the screw rod n, the lower connecting piece m, and the upper connecting piece j, which constitute the connecting means, are individually packaged as dedicated parts for the deck plate roof drain product. Since it cannot be diverted to other uses, it will be discarded as garbage after use. For this reason, there has been a problem in that it is not possible to deal with the control of construction material waste, which is a problem in the Construction Recycling Law recently enforced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a temporary fixing device for a roof drain main body which can solve the above-mentioned conventional problems.

[0009]

SUMMARY OF THE INVENTION The present invention provides a concrete blocking cylinder which is inserted into a fitting hole formed in a deck plate, and a support plate which is provided around the upper edge of the concrete blocking cylinder and fixed to the upper surface of the deck plate. And a tubular spacer that is externally fitted to the drain pipe portion of the roof drain main body and is disposed integrally or separately on the driving metal fitting so as to surround the cylindrical hole of the driving metal fitting. In a temporary fixing device for a roof drain main body, which comprises a connecting means for connecting the roof drain main body and the driving metal fitting, the connecting means is arranged on an outer peripheral portion of the cylindrical spacer, and a supporting plate for the driving metal fitting is provided. A roof drain main body temporary fixing device, comprising a plurality of connecting rods for connecting to a pan portion of the roof drain main body.

In such a structure, the support plate of the driving member and the saucer portion of the roof drain body are connected in advance by a plurality of connecting rods arranged on the outer peripheral portion of the cylindrical spacer, and in this state. By inserting the concrete blocking cylinder of the driving metal fitting into the fitting insertion hole drilled in the deck plate and welding or screwing the support plate to the deck plate around the hole, the roof drain main body and the driving metal fitting can be separated. Temporarily fix the connecting body to the deck plate. Then, by pouring concrete on the deck plate in this state, when the concrete is solidified, the connecting rod is maintained at the outer peripheral portion of the cylindrical spacer while maintaining the connected state between the roof drain body and the driving metal fitting. It will be embedded in concrete. As a result, it is not necessary to remove the connecting rod after the roof drain main body is mounted, and the problem that the coupling means becomes dust after use as in the conventional case is solved. Further, since the connecting rod is embedded in the concrete solidified as described above, it also has a function as an anchor for holding the connecting body of the roof drain main body and the driving fitting in position.

Here, the connecting rod is inserted upward from the rear surface of the support plate, and its upper end is a fixed screw screwed into a screw hole formed in the lower surface of the tray of the roof drain body. Be proposed. In such a configuration, since a commercially available screw can be used, there is an advantage that the cost can be reduced.

Further, the connecting rod is fixed to a fixing screw inserted upward from the back surface of the supporting plate, the upper part of the fixing screw is screwed so as to be able to move forward and backward from the lower end, and the upper end is a pan portion of the roof drain body. It may be configured with an adjusting cylinder screwed into a screw hole formed in the lower surface. With such a configuration, the entire length of the connecting rod can be adjusted through the screwing action of the fixed screw that is screwed so as to be able to move forward and backward from the lower end of the adjusting cylinder, so that it can be struck on the deck plate at each construction site. Even if the thickness of the concrete to be installed is different, the concrete thickness can be easily accommodated.

Further, in the above structure, the support plate may be formed with a storage recess for storing the operation head of the fixing screw so as not to project from the lower surface of the support plate. In such a structure, the concrete blocking cylinder of the driving tool is inserted into the fitting insertion hole formed in the deck plate, and when the support plate is placed on the deck plate around the hole, the support plate is mounted on the deck plate. It can be stably placed on the plate, and prevents the support plate from tilting or rattling or changing the installation height of the roof drain body due to the operating head of the fixing screw protruding from the lower surface of the support plate. can do.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
3 will be described. As shown in FIG. 1, the roof drain main body 1 has a well-known shape in which a saucer portion 2 is provided on an upper portion thereof, and a drainage pipe portion 3 projects downward from a center of an inner bottom of the saucer portion 2. . Further, the cylindrical spacer 4 fitted onto the drain pipe portion 3 holds the roof drain body 1 at a predetermined height position corresponding to the thickness of the concrete s cast on the deck plate p, and For blocking the inflow of the concrete s into the drain pipe section 3 side,
Various lengths are prepared according to the concrete thickness T.

The driving metal fitting 5 comprises a cylindrical concrete blocking cylinder 6 and a support plate 7 provided around the upper edge of the concrete blocking pipe 6. The supporting plate 7 has a cylindrical hole 8 communicating with the concrete blocking cylinder 6. It is open. The inner diameter of the cylindrical hole 8 is slightly smaller than the inner diameter of the concrete blocking cylinder 6, and the hole edge portion is slightly recessed downward so that the lower end of the cylindrical spacer 4 is locked. A section 9 is provided. Also,
The support plate 7 includes the adjacent protrusions 10 and 1 of the deck plate p.
It is formed in a rectangular shape having a length that can be passed between 0s, and as shown in FIG. 2, a large number of through holes 11 are bored so that when the concrete s is poured, the concrete s is placed below the support plate 7. I try to make it easy to inflow. Although the concrete blocking cylinder 6 and the support plate 7 which form the driving metal fitting 5 are made of metal, they may be integrally molded by using synthetic resin instead.

Next, the connecting means for connecting the roof drain body 1 and the driving metal fitting 5, which is an essential part of the present invention, will be described. As shown in FIG. 1, this connecting means comprises a plurality of connecting rods 12 arranged on the outer peripheral portion of the cylindrical spacer 4, and the connecting rods 12 support the support plate 7 of the driving member 5 and the roof drain main body 1. Is connected to the saucer section 2 of.

The connecting rods 12 are fixed screws 13 inserted upward from the back surface of the support plate 7, and the fixed screws 1.
The upper part of 3 is screwed so as to be able to move forward and backward from the lower end, and the upper end is composed of an adjusting cylinder 14 screwed into a screw hole 15 formed in the lower surface of the pan 2 of the roof drain body 1. Here, as shown in FIG. 7, the attachment screw holes y of the anchor u in the conventional configuration are formed on the lower surface of the tray portion 2 at positions that divide the circumference into three equal parts. If it is used, it is not necessary to separately drill the screw hole 15. Further, as shown in FIG. 2, the support plate 7 is formed with insertion holes 16 through which the fixing screws 13 can be inserted, at positions that divide the circumference into six equal parts, and three insertion holes 16 among them are formed. According to the orientation of the saucer portion 2, the three screw holes 15 of the saucer portion 2 are vertically aligned with each other. Further, the fixing screw 13 is provided on the hole edge portion of each insertion hole 16.
The storage recess 17 capable of storing the operation head 13a of the
Is formed so as to bulge on the upper surface of the
The operation head 13a of the fixed screw 13 is prevented from protruding from the lower surface of the support plate 7 by 7.

In order to construct the roof drain main body 1 having such a structure, first, the cylindrical spacer 4 is placed on the support plate 7 of the driving tool 5 and the lower end is engaged with the locking step 9. Hold that position. Next, with the drain pipe portion 3 inserted in the tubular spacer 4, the saucer portion 2 of the roof drain body 1 is mounted on the tubular spacer 4. Next, the adjusting cylinder 14 that forms the connecting rod 12 in each of the screw holes 15 of the tray 2
The upper end of each fixed screw 13 inserted into the insertion hole 16 from the back surface of the support plate 7 is screwed to the adjusting cylinder 14 from the lower end through a screwing operation on the operating head 13a. Then, each fixing screw 13 is tightened. As a result, as shown in FIG. 3, the roof drain main body 1 and the driving fitting 5 become a connected body integrally assembled via the tubular spacer 4.

Next, after a fitting insertion hole 18 is formed in the deck plate p so as to be substantially aligned with the concrete blocking cylinder 6 of the driving fitting 5, the concrete blocking cylinder 6 of the connecting body is inserted into the fitting insertion hole 18. Then, with the support plate 7 placed on the deck plate p, required portions of the support plate 7 are welded to the deck plate p. As a result, the connected body composed of the roof drain body 1 and the driving tool 5 is temporarily fixed on the deck plate p. When the support plate 7 is made of synthetic resin, it is fixed to the deck plate p using a tapping screw or the like. Further, a gap formed between the fitting insertion hole 18 and the concrete blocking cylinder 6 is closed with a piece of gum tape or the like.

After the connecting body is temporarily fixed to the deck plate p as described above, concrete s is placed on the deck plate p.
When the concrete s is filled around the lower part of the pan 2 of the roof drain main body 1, the cylindrical spacer 4 and the concrete blocking cylinder 6, the roof drain main body 1 is covered with the surface layer of the concrete s. It is fixed to the part, and the installation work is completed as shown in FIG.

When the concrete s is solidified as described above, the connecting rod 12 remains inside the concrete s at the outer peripheral portion of the cylindrical spacer 4 while the connecting state of the roof drain body 1 and the driving fitting 5 is maintained. It will be embedded. As a result, it is not necessary to remove the connecting rod 12 after the roof drain body 1 is attached, and it is not necessary to dispose of it as dust. Further, since each connecting rod 12 is embedded in the concrete s solidified as described above, it can function as an anchor for holding the connected body of the roof drain body 1 and the driving fitting 5 in position.

Further, each connecting rod 12 has a fixing screw 13 and an adjusting cylinder 14 into which the fixing screw 13 is screwed so as to be able to move forward and backward.
By being constituted by and, the entire length of the connecting rod 12 can be adjusted through the screwing action. As a result, even if the thickness of the concrete s cast on the deck plate p differs for each construction site, the concrete thickness T
Can be easily dealt with. In addition, as shown in FIGS. 4A and 4B, various adjusting cylinders 1 having a longer length are provided.
By arranging four, thicker concrete s
It can also be used for construction. Instead of this, it is also possible to use one type of adjusting cylinder 14 and use fixing screws 13 having different lengths. Further, as shown in FIG. 5, each connecting rod 12 may be composed of only the fixing screw 13. In this case, since a commercially available screw can be used, there is an advantage that the cost can be reduced.

On the other hand, depending on the construction mode, as shown in FIG. 6, a fitting insertion hole 18 may be bored in the convex portion 10 of the deck plate p, and the fixing screw 13 may be located on the convex portion 10. Even in such a case, the support plate 7 of the driving tool 5
Since a storage recess 17 for storing the operation head 13a of the fixed screw 13 is formed in the
Does not protrude from the lower surface of the support plate 7. Accordingly, the support plate 7 can be stably placed on the deck plate p, and the support plate 7 is tilted or rattled due to the operation head 13a protruding from the lower surface of the support plate 7,
Alternatively, the change in the installation height of the roof drain body 1 is prevented.

In the above embodiment, the case where the cylindrical spacer 4 and the driving metal fitting 5 are separately formed has been described, but the cylindrical spacer 4 and the driving metal fitting 5 may be integrally formed. Good.

[0025]

As described above, according to the present invention, the connecting means for connecting the roof drain main body 1 and the driving metal fitting 5 are arranged on the outer peripheral portion of the cylindrical spacer 4 to support the driving metal fitting 5. Since the plate 7 and the saucer portion 2 of the roof drain body 1 are constituted by a plurality of connecting rods 12, when the cast concrete s is solidified, the connecting rods 12 are connected to the roof drain body 1 and the driving fitting 5. Will be embedded in the concrete s at the outer peripheral portion of the cylindrical spacer 4 while maintaining the connection state of the connection rod 1 and the connection rod 1 after the roof drain body 1 is attached.
No need to remove 2. This simplifies the construction and eliminates the conventional problem that the coupling means becomes dust after use. Further, the connecting rod 12 can also provide an anchoring action for holding the connected body of the roof drain body 1 and the driving fitting 5 in the concrete s.

The connecting rod 12 is inserted upward from the rear surface of the supporting plate 7, and the upper end thereof is screwed into a screw hole 15 formed in the lower surface of the pan 2 of the roof drain body 1. By using the fixed screw 13, a commercially available screw can be used, so that there is an advantage that the cost can be reduced.

Further, the connecting rod 12 is fixed to a fixing screw 13 inserted upward from the back surface of the supporting plate 7, an upper portion of the fixing screw 13 is screwed so as to be able to move forward and backward from a lower end, and an upper end is a roof. The entire length of the connecting rod 12 is adjusted through the screwing action of the fixing screw 13 by being configured with the adjusting cylinder 14 screwed into the screw hole 15 formed in the lower surface of the pan 2 of the drain body 1. Even if the thickness of the concrete s placed on the deck plate p is different for each construction site, the concrete thickness T can be easily accommodated.

Further, the support plate 7 is formed with the accommodating recess 17 for accommodating the operating head portion 13a of the fixing screw 13 so as not to project from the lower surface of the support plate 7, so that the support plate 7 is placed on the deck plate p. The support plate 7 can be stably placed.
It is possible to prevent the tilting or rattling of the support plate 7 due to the operation head portion 13a of the fixing screw 13 protruding from the lower surface of the fixing screw 13 or the change in the installation height of the roof drain body 1 from being prevented. is there.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a construction state showing an embodiment of a temporary fixing device for a roof drain body according to the present invention.

FIG. 2 is a plan view of a driving metal fitting that constitutes a temporary fixing device for the roof drain main body of the above.

FIG. 3 is a vertical cross-sectional view showing a connected state of a roof drain body and a driving metal fitting.

FIG. 4 is a partial vertical cross-sectional view showing a connecting rod provided with adjusting cylinders having different lengths in a construction state.

FIG. 5 is a partial vertical cross-sectional view showing a connecting rod that is configured only with fixing screws in a construction state.

FIG. 6 is an explanatory view of the operation of the storage recess in different construction modes.

FIG. 7 is a vertical cross-sectional view showing a construction state of a conventional configuration.

[Explanation of symbols]

1 Roof drain body 2 saucer 3 Drain pipe section 4 Cylindrical spacer 5 Driving hardware 6 concrete barrier 7 Support plate 8 tube holes 12 connecting rod 13 fixed screw 13a operation head 14 Adjust tube 15 screw holes 17 Storage recess 18 Fitting hole p deck plate

Claims (4)

[Claims] Claim: What is claimed is: 1. A concrete blocking cylinder which is inserted into a fitting hole formed in a deck plate, a driving metal fitting which is provided around a top of the concrete blocking cylinder and which is fixed to the upper surface of the deck plate, and a roof. A cylindrical spacer that is externally fitted to the drain pipe portion of the drain main body and is integrally or separately provided on the driving metal fitting so as to surround the cylindrical hole of the driving metal fitting, the roof drain main body and the driving metal fitting. In the temporary fixing device for the roof drain main body, which comprises a coupling means for coupling the coupling means, the coupling means is disposed on an outer peripheral portion of the cylindrical spacer,
A roof drain main body temporary fixing device comprising a plurality of connecting rods connecting a support plate of a driving metal fitting and a tray portion of a roof drain main body. 2. The connecting rod is a fixed screw which is inserted upward from the back surface of the support plate and whose upper end is screwed into a screw hole formed in the lower surface of the tray portion of the roof drain body. The temporary fixing device for the roof drain main body according to claim 1. 3. The connecting rod is fixed to a fixing screw inserted upward from the back surface of the support plate, an upper portion of the fixing screw is screwed so as to be able to move forward and backward from a lower end, and an upper end is a lower surface of a tray portion of the roof drain body. 2. The temporary fixing device for a roof drain main body according to claim 1, further comprising an adjusting cylinder screwed into a screw hole formed in the. 4. The roof according to claim 2, wherein the support plate is formed with a storage recess for storing the operation head of the fixing screw so as not to project from the lower surface of the support plate. Temporary fixing device for the drain body.