JP3920617B2 - Drain pan holding device for roof drain for driving type vertical drainage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is to hold the drain receiving tray of the roof-type vertical drainage roof drain temporarily fixed to the concrete formwork so that it cannot move until the concrete is placed and solidified after the temporary fixing. The present invention relates to a drain pan holding device.
[0002]
[Prior art]
The roof drain for driving type vertical drainage is in a state in which a drain body including a drain pan and a drain pipe portion coupled downward from the drain pan is temporarily fixed on a concrete formwork by a temporary fixing device. It is installed at the same time as the formation on the open-air floors such as rooftops and balconies formed by placing concrete around.
[0003]
As shown in FIG. 8, a temporary fixing device a for driving type vertical drainage roof drain used in the construction includes a positioning board b fixed to a concrete form k arranged horizontally, and a drain tray. a drain main body g composed of h and a drain pipe portion j coupled downward from the drain pan h, and an upper end of the drain main body g is fitted to the drain pipe portion j, and a lower end is fitted to the positioning board b. A cylindrical spacer c for holding the drain body g on the concrete form k at a required interval, and a pressing plate d mounted on the inner bottom surface of the drain tray h are pressed against the concrete form k side, It is comprised by the clamping means which consists of the screw rod e and wing nut f which clamps the drain receptacle h with the cylindrical spacer c.
[0004]
Then, in a state where the drain main body g is temporarily fixed by the temporary fixing device a, by placing concrete around the drain main body g and solidifying it, the drain main body g is attached to the surface layer portion of the solidified concrete. I am trying to bury it.
[0005]
[Problems to be solved by the invention]
By the way, as shown in FIG. 8 in particular, in the drainage roof drain for vertical drainage provided with the protruding tray part m protruding sideways on the drain receiving tray h, the drain main body g is made into a concrete type by the temporary fixing device a described above. In a state where it is temporarily fixed on the frame k, for example, a field worker inadvertently steps on the protruding dish part m or drops an object against the protruding dish part m so as to move downward to the protruding dish part m. As shown in FIG. 9, a force that lifts and tilts the opposite side of the drain pan h with the upper end n of the cylindrical spacer c close to the projecting pan m as a fulcrum acts. The connecting portion p of the positioning board b to which the lower end of the screw rod e that presses the drain tray h downward through the pinching plate d and the wing nut f is deformed so as to bulge upward. Pressure decreases and drain pan h side The shift easy to state. Here, on the lower surface of the drain tray h, an annular portion r that engages with the upper end of the cylindrical spacer c and positions the drain tray h is projected downward, so that the drain tray h is shifted to the side by impact. Then, the annular portion r rides on a part of the upper end of the cylindrical spacer c, and the drain tray h is inclined as shown in FIG.
[0006]
Further, when a substantially horizontal impact force in the central direction is applied to the side portion of the drain tray h by hitting a foot or hitting an object on the drain tray h, the annular portion r is cylindrical. An operation of climbing on a part of the upper end of the spacer c and tilting the drain receiving tray h occurs, and a force for lifting the screw rod e upwards is actuated by this operation, and the connecting portion p of the positioning board b is moved upward. Due to the bulging deformation, in this case as well, the drain pan h is inclined as shown in FIG. FIG. 9 shows the inclination of the drain pan h that occurs when an impact force in the central direction is applied to the side of the drain pan h opposite to the protruding pan m. Then, when concrete is placed without being noticed with such an inclination, there is a problem that correction after the consolidation becomes extremely difficult.
[0007]
An object of the present invention is to provide a drain pan holding device for a roof drain for driving type vertical drainage that can solve the conventional problems.
[0008]
[Means for Solving the Problems]
The present invention comprises a drain receiving tray and a drain pipe portion coupled downward from the drain receiving tray. A driving type vertical pulling device comprising a support member for holding the drain receiving tray at a predetermined height position on a lower surface of the drain receiving tray, the lower end being in contact with the concrete mold. It is the drain pan holding device of the roof drain for drainage.
[0009]
In such a configuration, the drain receiving tray can be held at a predetermined height position by the support member provided on the lower surface of the drain receiving tray. Even if some impact force is applied to the drain tray of the roof drain, the holding action of the support member causes the upward deformation of the connecting portion p of the positioning board b due to the inclination of the drain tray (see FIG. 9). Thus, it is possible to prevent the inclination of the drain tray caused by the annular portion r of the drain tray h riding on a part of the upper end of the cylindrical spacer c as in the prior art.
[0010]
Here, the roof drain for driving type vertical drainage is provided with a projecting dish portion projecting sideways on the drain tray, and a configuration in which a support member is disposed on the lower surface of the projecting dish portion is particularly effective. It is. That is, in the case where the drain pan is provided with the projecting pan portion protruding sideways, the upper end portion of the cylindrical spacer c is easy to step on the projecting pan portion. The “lever principle” with n (see FIG. 9) as a fulcrum increases its force and the bulging deformation of the connecting portion p of the positioning board b is likely to occur upward. By disposing the support member on the lower surface and maintaining its height position, it is possible to reliably prevent the drain tray from tilting.
[0011]
Further, the support member is constituted by a vertical screw rod and a screw cylinder having a female screw hole into which a lower end of the screw rod is removably screwed, and the screw rod screwed into the female screw hole. It can be proposed that the length of the support member can be adjusted via a screwing action. By using the support member configured as described above, the length of the support member and the fine adjustment thereof can be easily performed according to the height of the drain pan temporarily fixed at the temporary fixing position.
[0012]
Further, the support member may be fixed to the drain tray by screwing the upper end of the screw rod constituting the support member to the lower surface of the drain tray. Here, in the driving type vertical drainage roof drain, a plurality of screw holes for screwing an anchor s (see FIGS. 8 and 10) bent in an L shape are provided on the lower surface of the drain tray. Therefore, if the upper end of the screw rod is screwed into the screw hole, the support member can be easily attached without separately processing the screw hole in the drain tray. Moreover, since the said supporting member can be packed in the state removed from the drain receiving tray at the time of product shipment, it does not become bulky and can also obtain an anchor effect | action in the hardened concrete after construction.
[0013]
Furthermore, the lower end of the screw cylinder is provided with a flange portion that enlarges the contact area with the concrete formwork, and a boss portion that is screwed or fitted into the female screw hole of the screw cylinder from below to close the female screw hole. A cap body may be provided. In such a configuration, the upright stability of the support member can be improved by the flange portion of the cap body in a state where the drain tray is held at a predetermined height position by the support member, while the mold is made from hardened concrete. When the frame is removed, the boss of the cap body that closes the lower portion of the female screw hole can prevent leakage of rust juice from the female screw hole.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS.
The driving type vertical drainage roof drain 1 is installed on the surface layer of an outdoor floor such as a rooftop or a balcony, and the drain main body 2 of the driving type vertical drainage roof drain 1 is a drain. A receiving tray 3 and a drain pipe portion 4 coupled downward from the drain receiving tray 3 are provided. Here, a present Example shows the case where this invention is applied with respect to the driving | running | working type | formula vertical drainage roof drain 1 provided with the protruding tray part 5 which protrudes to the side in the drain receiving tray 3. FIG.
[0015]
The driving type vertical drainage roof drain 1 is temporarily fixed at a predetermined position of the concrete form 6 by a temporary fixing device 7 before placing concrete. The temporary fixing device 7 includes a circular positioning board 8. The positioning board 8 is fixed to a predetermined position of the concrete mold 6 arranged horizontally by a nail 9 or the like. The positioning board 8 is fitted with a lower end of a cylindrical spacer 10 surrounding the drain pipe portion 4 of the drain main body 2, and the upper end of the cylindrical spacer 10 is projected downward on the lower surface of the drain tray 3. The drain receiving tray 3 is engaged with the inner peripheral surface of the annular portion 11 for positioning in a substantially close fitting manner. Then, by interposing the cylindrical spacer 10 between the drain tray 3 and the concrete mold 6 in this way, the drain main body 2 is supported on the concrete mold 6 at a required interval.
[0016]
A female screw portion 12 is provided at the center of the positioning board 8, and a screw rod 13 is implanted substantially vertically by screwing the lower end of the female screw portion 12. In addition, a pinching plate 14 is provided across the opening 4 ′ communicating with the drain pipe portion 4 on the inner bottom surface of the drain tray 3, and the screw is inserted into a through hole formed in the center of the pinching plate 14. By inserting the flange 13 and screwing and tightening a wing nut 15 on the protruding end side thereof, the pressing plate 14 is pressed against the concrete mold 6 side, and the upper end of the pressing plate 14 and the cylindrical spacer 10 is pressed. The drain body 2 is temporarily fixed by sandwiching the drain receiving tray 3. The screw rod 13 and the wing nut 15 serve as clamping means for pressing the clamping plate 14 toward the concrete mold 6 and clamping the drain tray 3 with the cylindrical spacer 10.
[0017]
Next, the drain pan holding device 16, which is a main part of the present invention, will be described. The drain pan holding device 16 has left and right sides of the lower surface of the projecting tray portion 5 projecting laterally from the drain tray 3, and a lower end abutting against the concrete mold 6 and a projecting pan portion of the drain tray 3. Support members 17 and 17 for holding 5 at a predetermined height position are provided.
[0018]
As shown in FIG. 4, both support members 17, 17 are composed of a vertical screw rod 18 and a screw cylinder 20 provided with a female screw hole 19 along the axis, and in the female screw hole 19 of the screw cylinder 20. The length of the screw rod 18 can be adjusted by screwing the lower end of the screw rod 18 so as to be able to advance and retract. Thereby, the length adjustment means of each support member 17 is comprised.
[0019]
Then, the upper end of the screw rod 18 constituting each support member 17 is screwed to the lower surface of the protruding dish portion 5 so that the support member 17 is fixed to the drain tray 3. Here, in the driving type vertical drainage roof drain 1, as shown in FIG. 3, a screw hole for screwing an anchor s (see FIGS. 8 and 10) bent into an L shape. 26 and 26 are formed in advance on the left and right sides of the lower surface of the projecting plate portion 5 of the drain pan 3, so that if the upper ends of the screw rods 18 are screwed into the screw holes 26 and 26, the screw holes in the drain pan 3 are formed. The support member 17 can be easily attached without any additional processing.
[0020]
A cap body 21 that closes the female screw hole 19 is disposed at the lower end of the screw cylinder 20. The cap body 21 includes a circular flange portion 22 that expands the contact area with the concrete mold 6 and a boss portion 23 that projects from the upper surface of the flange portion 22, as shown in FIG. A male screw 24 is formed on the outer periphery of the boss portion 23. Then, the cap body 21 is attached to the lower end of the screw cylinder 20 by screwing the male screw 24 into the female screw hole 19. As a means for attaching the cap body 21, a plurality of retaining step portions 25 are formed on the outer periphery of the boss portion 23 as shown in FIG. It is good also as a fitting type which forcibly inserts in the female screw hole 19 and attaches to the cap body 21.
[0021]
In such a configuration, as shown in FIGS. 1 and 3, the driving type vertical drainage roof drain 1 is temporarily fixed at a predetermined position of the concrete mold 6 by the temporary fixing device 7 before the concrete is placed. At the same time, the upper ends of the support members 17 and 17 are screwed to the lower surface of the protruding tray portion 5 of the drain tray 3 and the lower ends of the support members 17 and 17 are brought into contact with the concrete mold 6 through the length adjusting operation. By holding the protruding tray portion 5 of the drain tray 3 at a predetermined height position, even if any impact force is applied to the drain tray 3, the drain tray 3 is inclined by the holding action of the support members 17, 17. Is prevented from bulging and deforming upward (see FIG. 9) of the connecting portion p of the positioning board 8, and the drain caused by the annular portion 11 of the drain tray 3 riding on a part of the upper end of the cylindrical spacer 10 It is possible to prevent the inclination of the dish 3.
[0022]
Here, in particular, when the roof drain 1 for driving type vertical drainage is provided with a projecting dish part 5 projecting sideways on the drain tray 3, the projecting dish part 5 can be easily stepped on, When the projecting pan portion 5 is stepped on, the force increases by the “lever principle” with the upper end n located on the projecting pan portion 5 side of the cylindrical spacer 10 as a fulcrum, and above the connecting portion p of the positioning board 8. However, since the height position is maintained by the support members 17 and 17 disposed on the lower surface of the protruding dish portion 5, the drain receiving tray 3 is reliably prevented from tilting. It becomes possible.
[0023]
Further, the length adjusting means of the support members 17 and 17 is constituted by a screw rod 18 in the vertical direction and a screw cylinder 20 provided with a female screw hole 19 into which the lower end of the screw rod 18 is removably inserted. Accordingly, the length adjustment and fine adjustment of the support members 17 and 17 can be easily performed according to the height of the drain tray 3 temporarily fixed at the temporary fixing position 7. Further, the upright stability of the support members 17 and 17 can be improved by the flange portion 22 of the cap body 21 provided at the lower end of the screw cylinder 20.
[0024]
Further, concrete is placed on the drain tray 3 with a curing lid (not shown) attached thereto. After the hardening, when the concrete form 6 is removed, even if rust is generated in the female screw hole 19, the lower portion of the female screw hole 19 is blocked by the boss portion 23 of the cap body 21. Thus, leakage of rust juice from the female screw hole 19 can be prevented. In addition, after the construction, the support members 17 and 17 can provide an anchor action in the hardened concrete.
[0025]
In the above-described embodiment, the case where the drain pan holding device 16 is configured using the two support members 17 and 17 has been described, but instead of this, as shown in FIG. The drain tray holding device 16 can also be configured by In this case, a band plate-like flange plate 27 which is bent in a substantially crank shape on the left and right is fixed to the upper end of the screw rod 18 constituting the support member 17 by welding or the like. The support member 17 is attached to the drain pan 3 by being fixed to the screw holes 26, 26 of the protruding pan portion 5 of the drain pan 3 by 28.
[0026]
Further, in the above embodiment, the support member 17 is constituted by the screw rod 18 and the screw cylinder 20, and the length of the support member 17 can be adjusted through the screwing action of the screw rod 18 with respect to the screw cylinder 20. However, instead of this, as shown in FIG. 7, the support member 17 may be constituted by a single screw rod 18 ′ having a predetermined length. Even in this case, the upper end of the screw rod 18 ′ is screwed into the screw hole 26 of the drain tray 3, so that the length of the support member 17 can be slightly adjusted through the screwing action. it can. Further, as shown in the figure, the screw rod 18 ′ does not need to be formed with a screw over its entire length, and may be any one provided with a screw at least at the upper end portion screwed into the screw hole 26. . Furthermore, if a screw having a screw at the lower end or a screw formed over the entire length is used, the lower end of the screw rod 18 'is screwed to the flange formed with the screw hole so that the flange The upright stability of the support member 17 can be improved.
[0027]
Moreover, although the said embodiment demonstrated the driving | running | working type vertical drainage roof drain 1 provided with the protrusion tray part 5 which protrudes to the one side of the drain tray 3, the drain tray holding device 16 concerning this invention is the following. The present invention can also be applied to a general circular drain tray and a roof drain for driving type vertical drainage provided with protruding tray portions on both sides of the drain tray.
[0028]
【The invention's effect】
In the present invention, as described above, the drain pan holding device 16 is provided with the support member 17 on the lower surface of the drain pan 3 so that the lower end abuts against the concrete mold 6 and holds the drain pan 3 in a predetermined height position. Therefore, even if some impact force is applied to the drain pan 3, the holding action of the support member 17 prevents the upward deformation of the connecting portion p of the positioning plate 8 due to the inclination of the drain pan 3. Thus, it is possible to prevent the drain tray 3 from being inclined due to the annular portion 11 of the drain tray 3 riding on a part of the upper end of the cylindrical spacer 10.
[0029]
In particular, the driving type vertical drainage roof drain 1 has a drain pan 3 provided with a projecting pan portion 5 projecting sideways, and the support member 17 is disposed on the lower surface of the projecting pan portion 5. Thus, it is possible to reliably prevent the tilt of the drain tray 3 caused by stepping on the protruding tray portion 5.
[0030]
Further, when the support member 17 is constituted by a vertical screw rod 18 and a screw cylinder 20 having a female screw hole 19 into which the lower end of the screw rod 18 is removably screwed, temporarily fixed. Depending on the height of the drain pan 3 temporarily fixed at the position 7, the length of the support member 17 and the fine adjustment thereof can be easily performed.
[0031]
In addition, since the upper end of the screw rod 18 constituting the support member 17 is screwed to the lower surface of the drain tray 3, the support member 17 is fixed to the drain tray 3. By screwing the upper end of the screw rod 18 into the previously formed screw hole 26, the support member 17 can be easily attached without separately performing the screw hole processing on the drain tray 3. Further, since the support member 17 can be packed in a state where it is removed from the drain pan 3 at the time of product shipment, it is not bulky and, after construction, an anchor action can be obtained in the hardened concrete. .
[0032]
Further, the lower end of the screw cylinder 20 is provided with a flange portion 22 that enlarges the contact area with the concrete mold 6, and is screwed or fitted into the female screw hole 19 of the screw cylinder 20 from below. Since the cap body 21 including the boss portion 23 is disposed, the flange member 22 of the cap body 21 allows the support member 17 to be supported by the flange portion 22 of the cap body 21 in a state where the drain tray 3 is held at the predetermined height position by the support member 17. While the uprightness can be stabilized, when the mold 6 is removed from the hardened concrete, the boss 23 of the cap body 21 that closes the lower portion of the female screw hole 19 leaks rust juice from the female screw hole 19. There are excellent effects such as being able to prevent.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view showing a construction state of a drain pan holding device according to the present invention.
FIG. 2 is a plan view of a drive-type vertical drainage roof drain provided with a temporary fixing device.
FIG. 3 is a partially cutaway front view of a construction state of the drain pan holding device.
FIG. 4 is an exploded view of a support member.
FIG. 5 is a vertical cross-sectional view of a cap body provided with a cap body mounting means;
FIG. 6 is a partially cutaway front view showing a construction state of a drain pan holding device having another configuration.
FIG. 7 is a longitudinal side view showing a construction state of a drain pan holding device including a support member having another configuration.
FIG. 8 is a longitudinal side view showing a conventional configuration.
FIG. 9 is a longitudinal side view showing a problem of the conventional configuration.
FIG. 10 is a partially cutaway front view showing a conventional configuration.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Driving type | formula vertical drainage drain drain 2 Drain main body 3 Drain tray 4 Drain pipe part 5 Protrusion tray part 6 Concrete formwork 16 Drain tray holding device 17 Support member 18 Screw rod 19 Female screw hole 20 Screw cylinder 21 Cap body 22 Flange part 23 Boss part

Claims (1)

It comprises a drain pan and a drain pipe portion coupled downward from the drain pan, and holds the drain pan of a roof-type vertical drainage drain that is temporarily fixed on a concrete mold. There,
The lower surface of the drain pan is provided with a support member that holds the drain pan in a predetermined height position with its lower end in contact with the concrete mold ,
The supporting member is constituted by a vertical screw rod and a screw cylinder provided with a female screw hole into which the lower end of the screw rod is removably screwed, and the screw action of the screw rod screwed into the female screw hole The length of the support member can be adjusted via the flange, and the lower end of the screw cylinder is provided with a flange portion that expands the contact area with the concrete mold,
And a drain of a roof drain for driving-type vertical drainage, wherein a cap body having a boss portion which is screwed or fitted into a female screw hole of a screw cylinder from below and closes the female screw hole is disposed. A saucer holding device.

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