JP3762238B2 - Drain pan holding device for driven corner drain - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drain pan holding unit for holding a drain pan tray of a driving type corner drain temporarily fixed to a concrete form until the concrete is cast and solidified after the temporary fixing. Relates to the device.
[0002]
[Prior art]
The driven corner drain is a state in which a drain body including a drain pan having a substantially L-shaped cross section and a drain pipe extending rearward from the drain pan is temporarily fixed to a concrete formwork by a temporary fixing device. By placing concrete around, it is installed at the corner of the building where the floor and wall intersect.
[0003]
As shown in FIG. 7, a temporary fixing device a for driving corner drain used for the construction includes a positioning board b fixed to a concrete formwork x arranged in a vertical direction, and a rear portion of a horizontal edge i. The drain pipe portion k of the drain main body n having a drain receptacle h having a substantially L-shaped cross section with a vertical edge j coupled to the edge and a drain pipe portion k extending rearward from the vertical edge j. A cylindrical spacer c having one end externally fitted to the positioning plate b and the other end fitted to the positioning board b to hold the drain body n to the concrete mold x at a required interval, and a vertical edge of the drain body n The clamping plate d that is passed across the opening of the drainage pipe part k on the front surface of j is pressed against the concrete mold x side, and the vertical edge j and the drainage pipe part k are clamped with the cylindrical spacer c. It is comprised by the clamping means which consists of screw rod e and wing nut f. There.
[0004]
Below the drain body n temporarily fixed by the temporary fixing device a, a concrete form frame y is previously arranged horizontally, and around the vertical edge j of the drain body n, there is a concrete mold. A longitudinal concrete form z that is paired with the frame x is disposed. In this state, concrete is placed between the upper part of the concrete mold y and the concrete molds x and z.
[0005]
[Problems to be solved by the invention]
By the way, in the above-mentioned temporary fixing device a, when the wall-side concrete thickness defined by the interval between the concrete molds x and z is increased, a long cylinder corresponding to the interval between the concrete molds x and z. The drain body n is temporarily fixed using the spacers c and the screw rods e. Further, the drain main body n temporarily fixed by such a temporary fixing device a has the drain pipe portion k at the rear portion at an appropriate inclination angle (for example, 1 ° 10 ′) so that a smooth drainage effect can be obtained after construction. Inclined downward and temporarily fixed to the concrete mold x in a state where the left and right sides of the horizontal edge i of the drain tray h are held horizontally.
[0006]
However, in such a temporarily fixed state, for example, a field worker inadvertently hits a foot or hits an object, and an impact force is applied to the drain body n, resulting in a vertical edge. If the pressure plate d that is passed to the front surface of the part j is relatively displaced upward, there is a problem in that the drain tray h is inclined downward as shown by a chain line in FIG. Here, this inclination becomes more prominent as the cylindrical spacer c and the screw rod e are longer. Further, although the drain main body n is pressed against the concrete mold x side through the tightening force of the wing nut f that applies the clamping pressure to the clamping plate d, it can rotate around the screw rod e. As described above, when any impact force is applied to the drain main body n, as shown in FIG. 8, the drain main body n rotates and the horizontal edge i of the drain tray h is tilted in either the left or right direction. There was a problem.
[0007]
An object of the present invention is to provide a drain pan holding device for a corner type corner drain that can eliminate such a conventional problem.
[0008]
[Means for Solving the Problems]
The present invention comprises a drain pan formed in a substantially L-shaped cross section by a horizontal edge and a vertical edge, and a drain pipe portion extending rearward from the vertical edge of the drain pan. The drain-type corner drain that is temporarily fixed to the frame is to hold the drain tray so that it cannot move,
Lower end e Bei length adjustable support member for holding the contact with the horizontal edges concrete form opposed below the horizontal edge in a predetermined position,
Furthermore, the support member includes a vertical screw rod whose upper end is fixed to the lower surface of the horizontal edge portion, a screw cylinder having a female screw hole into which the lower end of the screw rod is removably inserted, and a concrete formwork. And a cap body that includes 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. And a drain pan holding device for a corner type corner drain.
[0009]
In such a configuration, the horizontal edge portion can be held at a predetermined position by the support member provided on the lower surface of the horizontal edge portion, so that any impact is applied to the driving corner drain that is temporarily fixed to the concrete formwork. Even if force is applied, the drain pan does not tilt downward and the horizontal edge of the drain pan does not tilt in the left-right direction.
[0010]
Further, as the length adjusting means of the support member, one 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 screwed so as to be able to advance and retract is used. by, according to the height of the drain pan at temporarily fixed position, the length adjustment and fine adjustment of the support member can be easily performed.
[0011]
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 horizontal edge portion. Here, in the driving type corner drain, screw holes for screwing the anchor m bent in an L shape (see FIGS. 7 and 8) are provided on the left and right sides of the lower surface of the horizontal edge of the drain tray. Since it is formed in advance on both sides, 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.
[0012]
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. Since the cap body is arranged, the uprightness of the support member can be stabilized by the flange portion of the cap body in a state where the horizontal edge portion is held at a predetermined position by the support member, while being cured. When the formwork is removed from the concrete, the boss of the cap body that closes the lower part of the female screw hole can prevent leakage of rust juice from the female screw hole.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS.
[0014]
The implantable corner drain 1 is installed at a corner of a building where the floor and the wall intersect, and the drain body 2 of the implantable corner drain 1 is perpendicular to the rear edge of the horizontal edge 3a. The drain receiving tray 4 having a substantially L-shaped cross section with which the edge portion 3b is coupled and the drain pipe portion 5 extending rearward from the vertical edge portion 3b are provided. The driving corner drain 1 is temporarily fixed at a predetermined position of the concrete formwork 7A by a temporary fixing device 6 before placing concrete.
[0015]
The temporary fixing device 6 includes a circular positioning board 8. The positioning board 8 is fixed to a predetermined position of the concrete mold 7A arranged in the vertical direction by a nail 9 or the like. One end of a cylindrical spacer 10 is fitted to the positioning board 8, and the other end of the cylindrical spacer 10 is fitted to the rear end portion of the drain pipe portion 5 of the drain body 2. The length of the cylindrical spacer 10 corresponds to the thickness of the concrete on the wall side. In the illustrated example, a relatively long cylindrical spacer 10 is used.
[0016]
A female screw portion 11 is provided at the center of the positioning board 8, and a screw rod 12 is implanted substantially horizontally by screwing the base end into the female screw portion 11. In addition, a pressure plate 13 is provided across the opening 5 ′ of the drain pipe portion 5 on the front surface of the vertical edge 3 b of the drain body 2, and a through hole formed in the center of the pressure plate 13. The screw rod 12 is inserted, and a butterfly nut 15 is screwed and tightened to the protruding end side thereof, whereby the pressing plate 13 is pressed against the concrete mold 7A side, and the pressing plate 13 and the cylindrical spacer 10 are pressed. The drain main body 2 is temporarily fixed by sandwiching the vertical edge portion 3b and the drain pipe portion 5 with each other. The screw rod 12 and the wing nut 15 are used as clamping means for pressing the clamping plate 13 against the concrete mold 7 </ b> A and clamping the vertical edge 3 b and the drain pipe 5 with the cylindrical spacer 10.
[0017]
In addition, a concrete mold 7A ′ that is paired with the concrete mold 7A is disposed around the vertical edge 3b of the drain tray 4, and a concrete mold is also provided below the horizontal edge 3a of the drain tray 4. The frame 7B is disposed horizontally, and the upper part of the concrete mold 7B and the space between the two concrete molds 7A and 7A ′ serve as a concrete filling gap.
[0018]
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 holds the horizontal edge 3a in a predetermined position by contacting the concrete formwork 7B with the lower end facing the lower side of the horizontal edge 3a on the left and right sides of the lower surface of the horizontal edge 3a. The length-adjustable support members 17 and 17 are provided.
[0019]
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.
[0020]
And the upper end of the screw rod 18 which comprises each support member 17 is screwed to the lower surface of the horizontal edge part 3a, and this support member 17 is fixed to the drain receptacle 4. Here, in the driving type corner drain 1, as shown in FIG. 2, screw holes 26 and 26 for screwing an anchor m bent into an L shape (see FIGS. 7 and 8) are provided. Since the drain catcher 4 is formed in advance on the left and right sides of the lower surface of the horizontal edge 3a of the drain pan 4, if the upper end of the screw rod 18 is screwed into the screw holes 26, 26, the drain pan 4 is separately processed with a screw hole. Without this, the support member 17 can be easily attached.
[0021]
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 flange portion 22 that expands the contact area with the concrete mold 7B, 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 engraved 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.
[0022]
In such a configuration, as shown in FIGS. 1 and 2, the driving corner drain 1 is temporarily fixed at a predetermined position of the concrete mold 7A by the temporary fixing device 6 before placing the concrete, and the drain tray The upper ends of the support members 17 and 17 are screwed to the lower surface of the horizontal edge 3a of the four, and the lower ends of the support members 17 and 17 are brought into contact with the concrete formwork 7B through the length adjusting operation, so that the drain tray By holding the horizontal edge 3a of 4 at a predetermined position, even if any impact force is applied to the driving corner drain 1, the drain pan 4 is inclined downward or the horizontal edge 3a as in the prior art. Does not tilt in the left-right direction.
[0023]
Here, the length adjusting means of the support members 17 and 17 includes 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 screwed. By comprising, the length adjustment of the supporting members 17 and 17 and its fine adjustment can be easily performed according to the height of the drain pan 4 in a temporarily fixed position. Further, the uprightness of the support members 17 and 17 can be stabilized by the flange portion 22 of the cap body 21 provided at the lower end of the screw cylinder 20.
[0024]
In this state, when concrete is cast and the concrete mold 7B is removed after the setting, even if rust juice is generated in the female screw hole 19, the lower part of the female screw hole 19 is attached to the cap body 21. By being blocked by the boss portion 23, 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 that is long 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, and the flange plate 27 is screwed horizontally by the screws 28 and 28. The support member 17 is attached to the drain pan 4 by being fixed to the screw holes 26 of the edge 3a.
[0026]
【The invention's effect】
As described above, the present invention adjusts the length of the lower edge of the horizontal edge 3a so that the lower edge abuts against the concrete mold 7B facing the lower side of the horizontal edge 3a to hold the horizontal edge 3a in a predetermined position. Since the drain tray holding device 16 is provided with a support member 17 that can be used, even if any impact force is applied to the driving corner drain 1, the drain tray 4 is inclined downward or the horizontal edge 3a is It is possible to reliably prevent a problem of tilting in the left-right direction.
[0027]
Further, the length adjusting means of the support member 17 is constituted by the vertical screw rod 18 and the screw cylinder 20 provided with the female screw hole 19 into which the lower end of the screw rod 18 is removably inserted. Depending on the height of the drain pan 4 at the temporarily fixed position, the length of each support member 17 and the fine adjustment thereof can be easily performed.
[0028]
In addition, since the upper end of the screw rod 18 constituting the support member 17 is screwed to the lower surface of the horizontal edge portion 3a, the support member 17 is fixed to the drain tray 4 so that the drain tray 4 By screwing the upper end of the screw rod 18 into the screw holes 26 formed in advance on the left and right sides of the lower surface, the support member 17 can be easily attached to the drain tray 4 without any additional screw hole processing. Further, since the support member 17 can be packed in a state of being removed from the drain pan 4 at the time of product shipment, it is not bulky and, after construction, an anchor action can be obtained in the hardened concrete. .
[0029]
Furthermore, the lower end of the screw cylinder 20 is provided with a flange portion 22 that enlarges the contact area with the concrete mold 7B, and the female screw hole 10 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 support member 17 is held upright by the flange portion 22 of the cap body 21 in a state where the horizontal edge portion 3a is held at a predetermined position by the support member 17. On the other hand, when the mold 7B is removed from the hardened concrete, the boss 23 of the cap body 21 that closes the lower part of the female screw hole 19 causes leakage of 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 partially cutaway front view of the above construction state.
FIG. 3 is a plan view of a drive-in corner drain provided with a temporary fixing 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 conventional configuration.
FIG. 8 is a front view showing a conventional configuration.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Driving type | mold corner drain 2 Drain main body 3a Horizontal edge part 3b Vertical edge part 4 Drain receptacle 5 Drain pipe part 7A Concrete formwork 7B Concrete formwork 16 Drain saucer 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 (2)

A drain pan that is formed in a substantially L-shaped cross section by a horizontal edge and a vertical edge, and a drain pipe that extends backward from the vertical edge of the drain pan and is temporarily fixed to a concrete formwork Of the driven corner drain to hold the drain pan immovably,
Lower end e Bei length adjustable support member for holding the contact with the horizontal edges concrete form opposed below the horizontal edge in a predetermined position,
Further, the support member includes a vertical screw rod whose upper end is fixed to the lower surface of the horizontal edge portion, a screw cylinder having a female screw hole into which the lower end of the screw rod is removably inserted, and a concrete formwork. And a cap body provided with a boss portion that is screwed or fitted into the female screw hole of the screw cylinder from below and closes the female screw hole. A drain pan holding device for a driven corner drain. 2. The drain of the driving type corner drain according to claim 1 , wherein the upper end of the screw rod constituting the support member is screwed to the lower surface of the horizontal edge portion to fix the support member to the drain tray. A saucer holding device.

Images