JP3030370U - Forming material for floor drilling - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To easily change the shape of a lower end corresponding to the shape of a deck plate at a predetermined position. SOLUTION: When the floor sleeve formwork 2 is mounted on the deck plate 1 at a predetermined position, the deck plate 1 is attached to the side wall 31 of the main body 3 having a portion not attached to the deck plate 1 at the lower end. The first auxiliary plate 4 is provided on the two side walls 31 of the main body 3 parallel to the concave-convex direction, and the side wall 31 of the main body 3 parallel to the extension direction of the deck plate 1 not abutting on the deck plate 1.
The second auxiliary plate 5 is fixed to each of them so that no space is generated between the deck plate 1, the main body 3, the first auxiliary plate 4, and the second auxiliary plate 5.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention mainly relates to a floor perforating frame material which is preferably used when constructing a new steel frame building.

[0002]

[Prior art]

 In constructing the building as described above, it is necessary to form a penetration part to the floor at the time of placing concrete, in connection with various facility works related to electricity, gas, water supply, ventilation ventilation, etc. There is. Forming material for perforating the floor is used to form this penetration.

A paper tube is generally used as a conventional form material for perforating floors of this type. That is, in the conventional method, as shown in FIG. 12, for example, a paper tube b is arranged at a predetermined position of the deck plate a, and in this state concrete c is placed on the deck plate a, and the concrete c After the paper is cured, the paper tube b is removed so that the penetrating portion S is formed. The paper tube b is required to have no gap between the lower end and the deck plate a in order to prevent the concrete c from entering the penetrating portion S.

[0004]

[Problems to be solved by the device]

 The conventional form material for perforating floors has a problem that the work of placing the form material for perforating floors is complicated. That is, in order to improve strength, the deck plate usually has an uneven shape in which the bottom plate and the top plate are connected by a swash plate that is inclined at a certain angle, but the position of the unevenness is different on the site. It is not determined at the design stage because it is determined by the situation of. On the other hand, the predetermined position is determined in the design stage according to the requirements of various wirings, pipes, and the like. Therefore, in order to eliminate the gap between the bottom edge of the floor drilling formwork and the deck plate, it is necessary to machine the bottom edge of the floor drilling formwork on site to correspond to the uneven shape of the deck plate at the predetermined position. was there.

Further, if the form material for perforating the floor is a paper tube, there has been a problem that it must be removed after the concrete is poured. That is, it is desirable that the form material for perforating the floor is a paper tube because it is necessary to be able to process the lower end on site, but since the paper tube is flammable, it must be removed after hardening of the concrete because it is necessary for fire protection. did not become. In addition, if the form material for perforating the floor is a paper tube, there is a problem that fixing is likely to be insufficient. That is, in order to make it easy to remove the paper tube after the concrete has hardened, it is customary to fix it to the deck panel beforehand with adhesive tape, mortar, etc. It was easy to come off by a shot.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention comprises a substantially rectangular parallelepiped main body having upper and lower openings, and a substantially rectangular first auxiliary plate and a second auxiliary plate fixed to the side wall of the main body. The first auxiliary plate is provided on the side wall parallel to the concave and convex direction of the deck plate, and the side wall parallel to the extension direction of the deck plate is provided on the side wall parallel to the concave and convex direction of the deck plate. The second auxiliary plates are fixed to each other so that no space is generated between the deck plate, the main body, the first auxiliary plate, and the second auxiliary plate. Then, by changing the fixing positions of the first auxiliary plate and the second auxiliary plate, it is possible to easily change the shape of the lower end corresponding to the uneven shape of the deck plate at the predetermined position.

[0007]

[Embodiment of device]

 The present invention comprises a substantially rectangular parallelepiped main body having an opening at the top and the bottom, and a substantially rectangular first auxiliary plate and a second auxiliary plate fixed to the side wall of the main body. One of the side walls of the main body stands upright and parallel to the extension direction of the deck plate at a predetermined position of the deck plate extending with a concavo-convex shape connected through a swash plate inclined at an angle. A floor perforating frame material to be mounted as described above, wherein the first auxiliary plate is formed with a hypotenuse in which at least one corner of the lower side is cut out at a predetermined angle to at least approximately the same width as the width of the swash plate portion. The main body having a portion which is not attached to the deck plate at the lower end, the side wall parallel to the uneven direction of the deck plate has a lower side at the bottom plate portion and the swash plate portion directly below the side wall. And fixing the first auxiliary plate so that the hypotenuse is attached, The second auxiliary plate is fixed to the side wall parallel to the extension direction of the deck plate so that the lower side is attached to the bottom plate portion or the swash plate portion directly below the side wall, and the deck plate, A gap is not formed between the main body, the first auxiliary plate, and the second auxiliary plate.

In order to facilitate the setting of the first auxiliary plate, the oblique sides are formed at two corners of the lower side of the first auxiliary plate, and the lower end has a portion that is not attached to the deck plate. On the side wall parallel to the concave and convex direction of the deck plate with respect to the main body, a bottom side and two slant sides are respectively attached to the bottom plate portion directly below the side wall and the two swash plate portions adjacent to the bottom plate portion. Thus, it is preferable to fix the first auxiliary plate.

Further, in order to reduce the number of parts, the main body is formed into a substantially square shape in a plan view, and the first auxiliary plate has a horizontal width substantially equal to the horizontal width of the main body and an upper and lower width thereof is the bottom plate portion of the deck plate. The second auxiliary plate may be sufficiently larger than the step between the top plate and the second auxiliary plate, and the first auxiliary plate may be turned upside down. Similarly, in order to reduce the number of parts, the first auxiliary plate has a horizontal width substantially equal to the horizontal width of the main body parallel to the concave and convex direction of the deck plate, and a vertical width parallel to the extension direction of the deck plate. The horizontal width of the main body may be substantially the same, and the side of the second auxiliary plate that does not have the oblique side may be downward.

In addition, in order to facilitate fixing to the side wall parallel to the uneven direction of the deck plate, a trapezoidal third auxiliary plate having oblique sides cut obliquely at the predetermined angle is provided. As an alternative to the auxiliary plate, it may be fixed to the side wall parallel to the uneven direction of the deck plate.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, a floor perforating formwork 2 to which the present invention is applied is used to mount a deck plate 1 and to form a through portion S when pouring concrete 6. Is.

The deck plate 1 is a rolled steel plate having an uneven cross-section, and a bottom plate portion 1 a having a step D 1 and a top plate portion 1 b are joined via a swash plate portion 1 c inclined at a predetermined angle A. Has been done. The form material 2 for floor perforation is made of a steel plate, and as shown in FIGS. 2 and 3, a main body 3 of a substantially rectangular parallelepiped, and a first auxiliary plate 4 and a second auxiliary plate fixed to a side wall 31 of the main body 3. And a plate 5. The floor perforating mold material 2 may be made of plastic.

The main body 3 is formed by bending a sheet metal, and has a rectangular pipe shape which is composed of four side walls 31 and which is opened vertically. A plurality of bolt engaging holes 32 1 are formed in each side wall 31 at the same height at regular intervals. In addition, at the lower end 3a of the deck plate 1, an extending portion 33 is horizontally extended inward from two side walls 31 that are parallel to the uneven direction, and a plurality of bolt insertion holes are formed in the extending portion 33. Set up. The main body 3 is configured such that the inner ends of the two extending portions 33 and the two side walls 31 that are parallel to the extending direction of the deck plate 1 form a substantially square shape in a plan view.

The first auxiliary plate 4 has a horizontal width substantially equal to the space between the top plate portions 1b of the deck plate 1 and a vertical width sufficiently larger than the step D of the deck plate 1, and is a bolt extending in the horizontal direction. The insertion groove 41 is bored, and two corners of the lower side 4a are obliquely cut at a predetermined angle A to form a slanted side 4b. The lengths of the lower side 4a and the oblique side 4b after being cut out are substantially the same as the widths of the bottom plate portion 1a and the swash plate portion 1c of the deck plate 1, respectively. Further, the extending portion 42 is horizontally extended outward from the lower side 4a, and the extending portion 42 is provided with, for example, two bolt insertion holes.

The second auxiliary plate 5 has substantially the same shape as the side wall 31 parallel to the extension direction of the deck plate 1, and has a plurality of vertically extending bolt insertion grooves 51 corresponding to the bolt engagement holes 32. Set up. Further, an extension portion 52 is horizontally extended outward from the lower side 5a, and for example, two bolt insertion holes are formed in the extension portion 52. A method of using the floor-piercing formwork 2 for construction work when constructing a steel frame building will be described with reference to FIGS. 4 to 6. As shown in FIG. 4, in a state where the reinforcing bars 11 are arranged above the deck plate 1 in advance, one of the side walls 31 of the main body 3 is placed at a predetermined position of the deck plate 1 which is determined as the position of the penetrating portion S at the time of design. The form material 2 for floor perforation is placed so as to be upright and parallel to the extension direction of the deck plate 1. At this time, due to the concavo-convex shape of the deck plate 1 at the predetermined position, the lower end 3a of the main body 3 has a portion which is not attached to the deck plate 1. In this embodiment, only one side wall 31 parallel to the extension direction of the deck plate 1 and two side walls 31 parallel to the uneven direction of the deck plate 1 are attached to the top plate portion 1b. Therefore, the two side walls 31 that are parallel to the uneven direction of the deck plate 1 have lower sides 4a and 2 respectively on the bottom plate portion 1a immediately below the side wall 31 and the two swash plate portions 1c adjacent to the bottom plate portion 1a. The two first auxiliary plates 4 are fixed by screwing the bolts inserted into the bolt insertion grooves 41 into the bolt engagement holes 32 at the positions where the two oblique sides 4b can be attached. Further, on the side wall 31 parallel to the extension direction of the deck plate 1 not abutting on the top plate portion 1b, a position where the lower side 5a can be abutted on the bottom plate portion 1a or the swash plate portion 1c of the deck plate 1 immediately below the side wall 31. Then, the second auxiliary plate 5 is fixed by screwing the bolt inserted in the bolt insertion groove 51 into the bolt engagement hole 32. Then, as shown in FIG. 5, the floor drilling formwork 2 is fixed to the deck plate 1 via the tapping screws 21 inserted into the bolt insertion holes of the extending portions 33, 42 and 52, and is fixed to the upper end of the main body 3. After the lid 22 is attached, concrete 6 is placed on the deck plate 1. The lid 22 not only prevents the concrete 6 from entering the main body 3 but also serves to reinforce the main body 3. After the concrete 6 is hardened, if the lid 22 is removed, the inner space of the form material 2 for perforating the floor forms the penetrating portion S, so that the deck plate 1 exposed in the penetrating portion S is formed as shown in FIG. A pipe hole 7 is bored by a gas burner or the like, and the necessary pipe 8 is arranged therein. The pipe 8 is fixed by a mortar 9 injected into the penetrating portion S. It should be noted that the shape of the penetrating portion S is substantially rectangular in plan view unlike the case where a conventional paper tube is used, and in particular, a sufficient amount of mortar 9 is injected between the corner and the pipe 8 having a cylindrical pipe shape. be able to. Further, since the frame material 2 for perforating the floor is made of metal and is incombustible, it is not necessary to remove it even after the concrete 6 is placed.

The main body 3 is not limited to a substantially square shape in a plan view, and for example, as shown in FIG. 7, the main body 3 extends in the uneven direction of the deck plate 1 and has a plurality of top plate portions 1b. Alternatively, as shown in FIG. 8, it may be extended in the extension direction of the deck plate 1. As another embodiment, when the main body 3 has a substantially square shape in a plan view, as shown in FIG. 9, the first auxiliary plate 4 has a horizontal width substantially the same as the horizontal width of the main body 3 and a vertical width. An example of the deck plate 1 which is sufficiently larger than the step D between the bottom plate portion 1a and the top plate portion 1b is a second auxiliary plate 5 which is configured so that a vertically inverted first auxiliary plate 4 can be used. .

As another embodiment, as shown in FIG. 10, the first auxiliary plate 4 has a horizontal width substantially the same as the horizontal width of the main body parallel to the concave-convex direction of the deck plate 1 and the vertical width of the deck. With the horizontal width of the main body 3 parallel to the extension direction of the plate 1 being substantially the same, it is possible to use, as the second auxiliary plate 5, the first auxiliary plate 4 with the side not forming the oblique side 4b facing down. The ones that have been configured are listed.

As another embodiment, as shown in FIG. 11, a trapezoidal third auxiliary plate 10 having oblique sides 10a obliquely cut at a predetermined angle A is used as a substitute for the first auxiliary plate 4. One fixed to the side wall 31 parallel to the uneven direction of the kick plate 1 may be mentioned. The third auxiliary plate 10 can be suitably used when the side wall 31 of the main body 3 which is parallel to the extension direction of the deck plate 1 and is not attached to the top plate portion 1b of the deck plate 1 is directly above the swash plate portion 1c. . That is, if the portion of the first auxiliary plate 4 protruding from the top plate portion 1a of the main body 3 directly above the swash plate portion 1c is small, the portion attached to the side wall 31 becomes small and it becomes difficult to fix it. The plate 10 can be accommodated by shifting the fixed position up and down and can be made smaller than the first auxiliary plate 4, so that it is easy to handle.

Of course, the configuration of the present invention is not limited to that described above. For example, the present invention is not limited to the configuration in which the main body 3, the first auxiliary plate 4, and the second auxiliary plate 5 are fixed by bolts. Further, the numbers of the first auxiliary plate 4 and the second auxiliary plate 5 can be changed, and the plurality of first auxiliary plates 4 and the second auxiliary plates 5 may be fixed to the side wall 31 as necessary. In addition, various modifications such as the number, position, material and shape of each member can be made without departing from the spirit of the present invention.

[0020]

[Effect of device]

 The present invention is implemented in the form as described above, and has the following effects. According to the present invention, by changing the fixing positions of the first auxiliary plate and the second auxiliary plate to the side wall of the main body, the shape of the lower end of the form material for perforating the floor is adjusted to correspond to the uneven shape of the deck plate at a predetermined position. It can be changed easily.

Since the form material for perforating the floor can be manufactured from a metal material or the like, the form material for perforating the floor can be firmly fixed to the deck panel via a bolt or the like. Furthermore, since the floor perforating frame material can be manufactured from a non-combustible material such as a metal material, it is possible to eliminate the need to remove the concrete after hardening.

Further, by using the same member for the first auxiliary plate and the second auxiliary plate, it is possible to reduce the number of necessary parts, facilitate the work, and suppress the manufacturing cost. Also, by making it possible to use a trapezoidal third auxiliary plate having oblique sides cut out at a predetermined angle as an alternative to the first auxiliary plate, it is possible to protrude from the top plate part of the main body to just above the swash plate part. Even if the portion is small, it can be easily fixed to the side wall.

[Brief description of drawings]

FIG. 1 is a perspective view before placing concrete showing an embodiment to which the present invention is applied.

FIG. 2 is a perspective view showing the same embodiment.

FIG. 3 is an exploded perspective view showing the same embodiment.

FIG. 4 is a conceptual side sectional view showing a mode of use of the embodiment.

FIG. 5 is a conceptual side sectional view showing a mode of use of the embodiment.

FIG. 6 is a conceptual side sectional view showing a mode of use of the embodiment.

FIG. 7 is a perspective view showing another embodiment.

FIG. 8 is a perspective view showing another embodiment.

FIG. 9 is a perspective view showing another embodiment.

FIG. 10 is a perspective view showing another embodiment.

FIG. 11 is a perspective view showing another embodiment.

FIG. 12 is a perspective view of a conventional example before placing concrete.

[Explanation of symbols]

 A ... Predetermined angle D ... Step S ... Penetration part 1 ... Deck plate 1a ... Bottom plate part 1b ... Top plate part 1c ... Swash plate part 2 ... Floor perforation form material 3 ... Main body 3a ... Lower end 4 ... First auxiliary plate 4a ... Lower side 4b ... Oblique side 5 ... Second auxiliary plate 5a ... Lower side 10 ... Third auxiliary plate 10a ... Oblique side 31 ... Side wall

Claims (5)

[Scope of utility model registration request] 1. A main body of a substantially rectangular parallelepiped having an opening at the top and bottom, and a substantially rectangular first auxiliary plate and a second auxiliary plate fixed to a side wall of the main body, wherein a bottom plate portion and a top plate portion are predetermined. One of the side walls of the main body is upright and parallel to the extension direction of the deck plate at a predetermined position of the deck plate that extends by forming an uneven cross-section that is connected through an inclined swash plate portion. A formwork for floor drilling to be mounted, wherein the first auxiliary plate is formed with a hypotenuse in which at least one corner of the lower side at the predetermined angle is cut out at least in substantially the same length as the width of the swash plate portion, With respect to the main body having a portion that is not attached to the deck plate at the lower end, lower side and oblique side are attached to the bottom plate portion and the swash plate portion immediately below the side wall on the side wall parallel to the uneven direction of the deck plate. To fix the first auxiliary plate, On the side wall parallel to the extension direction of the deck plate, the second auxiliary plate is fixed so that the lower side is attached to the bottom plate part or the swash plate part immediately below the side wall, and the deck plate, the main body, A form material for perforating a floor, characterized in that no gap is formed between the first auxiliary plate and the second auxiliary plate. 2. The main body having the oblique sides formed at two corners of the lower side of the first auxiliary plate and having a portion at the lower end which is not attached to the deck plate, is parallel to the uneven direction of the deck plate. The first auxiliary plate is fixed to the side wall such that a bottom side and two slant sides are respectively attached to the bottom plate portion immediately below the side wall and the two swash plate portions adjacent to the bottom plate portion. The form material for perforating a floor according to claim 1. 3. The main body has a substantially square shape in a plan view, and the first auxiliary plate has a horizontal width substantially the same as the horizontal width of the main body, and a vertical width is sufficiently larger than a step between a bottom plate portion and a top plate portion of the deck plate. The mold material for floor perforation according to claim 1, wherein the second auxiliary plate is made larger and the first auxiliary plate is turned upside down. 4. The horizontal width of the first auxiliary plate is substantially the same as the horizontal width of the main body parallel to the uneven direction of the deck plate, and the vertical width is the horizontal width of the main body parallel to the extension direction of the deck plate. The floor piercing formwork material according to claim 1, wherein the second auxiliary plates are substantially the same, and the second auxiliary plate has a side having no oblique side of the first auxiliary plate as a lower side. 5. A trapezoidal third auxiliary plate having oblique sides cut obliquely at the predetermined angle is fixed to the side wall parallel to the uneven direction of the deck plate as an alternative to the first auxiliary plate. The mold material for floor perforation according to claim 1, 2, 3 or 4.