JP3905019B2 - Apparatus and method for forming collective piping mounting portion in floor slab - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a forming apparatus related to a floor slab mounting portion of a collecting pipe ( single pipe type joint) installed through a floor slab in a drainage facility or the like of a building frame, and a forming method thereof.
[Prior art]
Conventionally, for example, in order to install a collecting pipe through a floor slab, to provide a space for the floor slab, for example, a paper cylindrical material is cut to a predetermined length and both ends are closed with adhesive tape. , for example by a fixed lower mold veneered top floor slab nails, was also of the to form a space for it in the concrete to pouring the floor slab form.
[0002]
Then, the collecting pipe is installed in the predetermined space, and a gap formed between the floor slab and the collecting pipe is filled with a filler such as mortar, and the collecting pipe is attached to the floor slab.
[Problems to be solved by the invention]
However, conventionally, as understood from FIG. 7, the space portion for the collecting pipe formed in the floor slab has a cylindrical shape, and after the collecting tube having a substantially inverted conical shape is mounted in the space portion, the collecting tube Even if the gap is filled by filling the gap between the outer peripheral surface and the space portion, the vertical load of the collecting pipe is transmitted to the filled filler as shown by the arrows in FIG. 7, and contact with the floor slab There was a problem that shear stress was applied to the surface (vertical side surface), and the collecting pipe fell out of the floor slab and dropped to the lower side after many years of use.
[0003]
In addition, the material used to make the filling material (mortar) to be filled in the space was purchased together with other types of work, and the cement used was packed, so only a small amount was used to fill the gap. If not, it may take a long time after opening the bag, in which case the filling material absorbs moisture, and there is also a problem that it can no longer be used.
[0004]
Thus, the present invention was devised to cope with the above-described conventional problems, and even if the vertical load of the collecting pipe is transmitted to the filled filler, no shear stress is applied to the contact surface with the floor slab, and it has been used for many years. Even if it is used, the collecting pipe does not fall off the floor slab and falls down, so that sufficient reliability of the adhesive surface strength of the filled material (mortar) can be secured, and the filling material (mortar) To provide a forming apparatus and a forming method of a collecting pipe mounting portion in a floor slab in which the amount of use can be considerably reduced and a long time after unpacking since the filling material does not remain, and the filling material does not absorb moisture. It is the purpose.
[Means for Solving the Problems]
Forming apparatus and method of forming the collecting pipe mounting portion of the floor slab according to the present invention comprises a lower mold for the floor slab form, collecting pipe for mounting of an inverted conical shape which is fixed to the floor slab for forming the lower mold on A forming mold for the space, and concrete for floor slabs placed on the lower mold for forming the floor slab,
Filler containing a filler material that is stored in advance in a forming mold for the collecting pipe mounting space and that fills and fixes a gap between the collecting pipe mounted in the collecting pipe mounting space and the space. A pack containing material, and an adhesive tape that closes a hole that is opened when fixing to the lower mold for forming the floor slab, with respect to the forming mold of the space for mounting the collecting pipe,
Have
The forming form of the space for installing the collecting pipe is formed by covering or smoothing the outer peripheral surface, which is a contact surface with the concrete for floor slab to be placed, with a non-water-absorbing coating material,
After forming mold demolding collector pipe mounting space, together with the collecting pipe mounting space of the forming mold is kneading kneading container filling material from the filling material filled pack, inside graduation line which is a measure of water injection the kneading water is drawn in advance,
The pack containing the filler material contains an amount of the filler material only for filling the gap,
It is characterized by
Or
Installing a lower mold for forming a floor slab, and fixing the forming mold of the space for mounting the collecting pipe having an inverted conical shape on the upper surface of the lower mold for forming the floor slab;
Wherein the collecting pipe mounting space of the forming mold in, after forming formwork demolding of the collecting pipe mounting space, the a collecting pipe that is attached to the collecting pipe mounting space portion the formed space filling the gap between the filler material pack of the filler material content fraction was housed for fixing is being pre-stored,
After a lid is attached to the forming mold in the collecting pipe mounting space and sealed, concrete is placed on the lower mold for forming the floor slab to a height at which the upper surface of the forming mold is hidden to form a floor slab. And
Wherein after solidification of the concrete, destroy the concrete corresponding to the upper surface of the forming mold of the collecting pipe mounting space, by pushing up the formation mold of the collecting pipe mounting space from the bottom, sampling Rutotomoni, The hole formed when the forming mold is fixed to the lower mold for forming the floor slab is closed with an adhesive tape to form a filling material kneading container, and the inside of the container serves as a guide for pouring the kneading water. A graduation line is drawn beforehand,
Put the filling material of the amount of the packing material containing the packing material stored in advance in the forming mold of the removed space for mounting the collecting pipe, and fill the kneaded water up to the scale line drawn inside Pour into a material kneading container and knead to make a filler,
Attaching a collecting pipe to the formed space part, filling a gap between the collecting pipe and the space part with the filler, and fixing,
It is characterized by
Or
A commercially available paper pack is used as the forming mold of the collecting pipe mounting space.
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
[0005]
In the figure, reference numeral 1 denotes a lower mold for forming a floor slab.
[0006]
The material of the lower mold 1 for forming the floor slab is not limited at all, but it may be formed of a normally flat veneer plate.
[0007]
The forming mold 3 of the collecting pipe mounting space 2 having an inverted conical shape is fixed to the upper surface of the floor slab forming lower mold 1.
[0008]
The fixing method is not limited in any way, and it is conceivable that, for example, a nail 4 is driven into the floor slab forming lower mold 1 from the bottom of the forming mold 3.
[0009]
The material of the mold 3 for forming the collecting tube mounting space 2 having the inverted conical shape is preferably a material that can be easily disposed of as garbage after use or can be incinerated. For example, commercially available paper A cup can be used.
[0010]
In addition, a pack 5 containing a filling material containing sand and cement, which is a raw material for mortar, is attached to the inner side wall by adhesive tape or the like, and the inner side wall has an inner part. A graduation line 7 is drawn as a guideline for pouring the kneaded water 6.
[0011]
As will be described later, the forming frame 3 of the collecting pipe mounting space 2 having an inverted conical shape in this way takes out a filling material, that is, sand or cement, as a raw material of the mortar from the pack 5 containing the filling material after demolding. The kneaded water 6 is added to the kneaded container to be kneaded.
As shown in FIG. 1, the forming mold 3 of the collecting pipe mounting space 2 having an inverted conical shape is sealed with a lid 8.
[0012]
The lid 8 of the forming mold 3 is also made of paper, and is reinforced and sealed with, for example, an adhesive tape and a rib.
[0013]
Thereafter, concrete is cast up to a position above the lid 8 to form a floor slab.
[0014]
Thus, after the floor slab 12 is formed, that is, after the concrete is solidified, the concrete existing above the lid 8 is destroyed, and the forming mold 3 is removed from the mold and taken out. Here, the demolding operation of the forming mold 3 can be easily performed by pushing it up from the bottom of the forming mold 3 with the tool 11 or the like.
[0015]
As a result, the collecting pipe mounting space 2 having a substantially inverted conical shape is formed in the floor slab 12.
[0016]
Thus, the shape of the space for mounting the collecting pipe 2 has an inverted conical shape, and the angle of the hypotenuse is substantially parallel to the hypotenuse of the outer peripheral surface of the collecting pipe 9 to be mounted later.
(1) A vertical load such as a vertical pipe is smoothly transmitted to the floor slab 12.
(2) The contact surface between the floor slab 12 and the filler (mortar) 10 reduces the shear stress, increases the compressive stress, and improves the installation strength reliability of the collecting pipe 9.
(3) The gap existing between the collecting pipe 9 and the floor slab 12 is minimized, and the amount of the filler (mortar) 10 that closes the gap can be reduced as compared with the conventional method.
[0017]
And benefits.
[0018]
By the way, if the part which contacts concrete like the outer peripheral surface of the forming mold 3 is covered with a surface covering material which does not absorb water or is finished smoothly, the forming mold 3 can be removed with a small force. The surface covering material is preferably a material that does not generate dioxins or the like during incineration.
[0019]
The demolded forming mold 3 becomes a kneading container as described above. That is, the filler 10 is taken out from the pack 5 containing filler and sand containing cement and mortar as a raw material for mortar, and put into the forming mold 3. Next, the kneading water 6 is poured to the scale line 7 and kneaded.
[0020]
When kneaded for a predetermined time, the filling mortar, that is, the filler 10 is easily completed.
[0021]
Thereafter, the collecting tube 9 is inserted into the collecting tube mounting space 2, and a gap between the space 2 and the outer peripheral surface of the collecting tube 9 is formed with a filler 10, such as sand and cement, and kneaded. The mortar kneaded with water 6 is filled, solidified after a predetermined curing time, and the collecting pipe 9 is attached to the floor slab.
[0022]
By the way, as described above, the amount of the filler 10 used to fill the gap is determined in advance by subdividing into the pack 5 with the filling material, so that an excessive amount or a small amount as in the prior art. Is not used by mistake. That is, anyone can easily prepare and prepare an optimal amount of filler (mortar) 10 constantly.
[0023]
When the filler (mortar) 10 is kneaded, the hole opened by the nail 4 when the forming mold 3 is fixed is closed with, for example, an attached adhesive tape.
[0024]
Here, as described above, since the forming mold 3 itself serves as a funnel for filling the gap 10 with the filler 10, it is possible to reduce the number of working tools and consider incineration after use. This eliminates the need for cleaning and cleaning after work.
[0025]
In addition, if the material of the pack 5 with a filling material is formed of vinyl or the like that does not transmit moisture or the like, the moisture-proof treatment is performed, and there is no possibility that the quality of the pack will deteriorate even if it is not used for a long time.
[0026]
In addition, if the forming mold 3 after use is made of paper, it can be incinerated as described above and can be easily crushed. Can also contribute to
[0027]
In addition, since the shape of the forming mold 3 of the collecting tube mounting space 2 is a cup shape having an inverted conical shape, it can be transported over and over in the field, more than the conventional forming mold It is easy to carry.
[0028]
Further, as described above, since the necessary amount of the material for the filler (mortar) 10 is provided in the forming mold 3 one by one, the waste of the material such as the remaining cement absorbs moisture and cannot be used. And no trash from over-production.
[0029]
Furthermore, the conventional forming form for the space for mounting the collecting pipe is formed in a cylindrical shape of about 4 meters and needs to be cut, but in the present invention, it is not even necessary to cut.
【The invention's effect】
Thus, the present invention has the above configuration.
[0030]
And if it is the formation apparatus and its formation method of the collecting pipe mounting part in the floor slab by this invention, even if the vertical load of a collecting pipe is transmitted to the filling material with which it filled, shear stress will not be applied in the contact surface with a floor slab. Even when used for many years, the collecting pipe does not fall off the floor slab and falls down, and sufficient reliability of the adhesive surface strength of the filled material (mortar) can be secured. In addition, the amount of the filler (mortar) used can be considerably reduced, and since the filler does not remain, there are excellent effects such that the filler does not absorb moisture for a long time after opening the bag.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram (part 1) illustrating a schematic configuration of a forming apparatus according to the present invention.
FIG. 2 is an explanatory diagram (part 2) illustrating a schematic configuration of a forming apparatus according to the present invention.
FIG. 3 is an explanatory view for explaining the configuration of a forming mold for a collecting pipe mounting space according to the present invention.
FIG. 4 is an explanatory diagram (part 3) illustrating a schematic configuration of a forming apparatus according to the present invention.
FIG. 5 is an explanatory diagram (part 4) illustrating a schematic configuration of a forming apparatus according to the present invention.
FIG. 6 is an explanatory diagram (part 5) illustrating a schematic configuration of a forming apparatus according to the present invention.
FIG. 7 is an explanatory diagram illustrating a configuration of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lower mold | form for floor slab formation 2 Space part for collecting pipe mounting 3 Forming mold 4 Nail 5 Pack with filling material 6 Kneading water 7 Scale line 8 Lid 9 Collecting pipe 10 Filling material 11 Tool 12 Floor slab

Claims (3)

Lower formwork for floor slab formation,
And forming mold collector pipe mounting space for an inverted conical shape which is fixed to the floor slab for forming the lower mold on,
Floor slab concrete placed on the lower formwork for floor slab formation;
Filler containing a filler material that is stored in advance in a forming mold for the collecting pipe mounting space and that fills and fixes a gap between the collecting pipe mounted in the collecting pipe mounting space and the space. A pack of ingredients,
About the forming mold of the collecting pipe mounting space, an adhesive tape that closes a hole opened when fixed to the lower mold for forming the floor slab;
Have
The forming form of the space for installing the collecting pipe is formed by covering or smoothing the outer peripheral surface, which is a contact surface with the concrete for floor slab to be placed, with a non-water-absorbing coating material,
After forming mold demolding collector pipe mounting space, together with the collecting pipe mounting space of the forming mold is kneading kneading container filling material from the filling material filled pack, inside graduation line which is a measure of water injection the kneading water is drawn in advance,
The pack containing the filler material contains an amount of the filler material only for filling the gap.
An apparatus for forming a collecting pipe mounting portion in a floor slab. Installing a lower mold for forming a floor slab, and fixing the forming mold of the space for mounting the collecting pipe having an inverted conical shape on the upper surface of the lower mold for forming the floor slab;
Wherein the collecting pipe mounting space of the forming mold in, after forming formwork demolding of the collecting pipe mounting space, the a collecting pipe that is attached to the collecting pipe mounting space portion the formed space filling the gap between the filler material pack of the filler material content fraction was housed for fixing is being pre-stored,
After a lid is attached to the forming mold in the collecting pipe mounting space and sealed, concrete is placed on the lower mold for forming the floor slab to a height at which the upper surface of the forming mold is hidden to form a floor slab. And
Wherein after solidification of the concrete, destroy the concrete corresponding to the upper surface of the forming mold of the collecting pipe mounting space, by pushing up the formation mold of the collecting pipe mounting space from the bottom, sampling Rutotomoni, The hole formed when the forming mold is fixed to the lower mold for forming the floor slab is closed with an adhesive tape to form a filling material kneading container, and the inside of the container serves as a guide for pouring the kneading water. A graduation line is drawn beforehand,
Put the filling material of the amount of the packing material containing the packing material stored in advance in the forming mold of the removed space for mounting the collecting pipe, and fill the kneaded water up to the scale line drawn inside Pour into a material kneading container and knead to make a filler,
Attaching a collecting pipe to the formed space part, filling a gap between the collecting pipe and the space part with the filler, and fixing,
A method for forming a collecting pipe mounting portion in a floor slab. 3. The forming apparatus and method for forming a collecting pipe mounting portion in a floor slab according to claim 1, wherein a commercially available paper pack is used as the forming mold of the collecting pipe mounting space.

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