JPH10110529A - Fixture of sleeve for beam - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability by sticking a seat to structural angles of a formwork, and supporting a sleeve spanning between a pair of structural angles by a locking part projected on the seat material. SOLUTION: A fixture 10 comprises a seat material 6 where a semicircumference-like locking part 1 for locking a sleeve port of a sleeve 20 is projected on the surface thereof, and a band material 5 for strapping the sleeve port 21 on the locking part 1. The seat 6 is formed by a resin-made circular seat material a size larger than the sleeve port 21, and the back 6b is a pressure sensitive adhesive surface. In the case of using the fixture 10, a pair of fixture 10 are stuck opposite to an opposing shape 31 for a beam. Next, the sleeve 20 is installed on the locking part 1, and the band material 5 is laid to engage both end hook parts 5a with engagement holes 1a of the locking part 1, thereby fixing the sleeve 20. Thus, arrangement of bars is performed in the formwork, construction can be accomplished easily even in a narrow space, and even if the sleeve is short, it is supplemented by the locking part to prevent concrete from flowing into the sleeve, and facilitate locating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a beam sleeve which is used to temporarily attach a sleeve to a shape when a concrete beam is cast.

[0002]

2. Description of the Related Art When placing concrete beams,
A sleeve is used to secure a through hole for passing piping through this beam.

[0003] The sleeve is generally cylindrical, and is made of paper for tearing and removing after curing the concrete, steel pipe to be buried and hard vinyl pipe, and the like. And FIG.
As shown in FIG. 0, the sleeve 20 having a length corresponding to the beam width is
Put into a formwork 30 such as wooden, and form a double
Both ends of the sleeve 20 are applied to the inner surface of the mold member, respectively, while being positioned between the two, and are finally positioned and temporarily installed with nails or the like. In addition, there is a sleeve of a sliding type, which can be shortened from the length at the time of temporary installation, thereby facilitating insertion into a mold. After the sleeve is temporarily provided in this manner, concrete is then poured by spraying a hose or the like, and after curing the concrete, the form is sequentially removed, and finally a beam is completed.

[0004]

Generally, a beam formwork 30 is provided.
As shown in FIG. 10, the cross section is substantially U-shaped, and concrete is poured from above the formwork 30. Therefore, the above-described temporary work of the sleeve is performed while forcibly inserting the head and the shoulder from above the formwork 30.
In addition, in many cases, the form 30 of such a beam is formed by being recessed and assembled in a slab mold laid in a horizontal plane.
After all, the temporary location is lower than the scaffold, which is very inconvenient. In addition, steel bars are generally assembled in the formwork, and the space between them is nailed with a hammer.

[0005] When the sleeve is temporarily installed in this manner, the concrete is then cast. As a result, the contact portion between the mold and the both ends of the sleeve applied to the mold is buried in the concrete. Become. However, this contact portion has some gaps, and as shown in FIG. 11, depending on the size of the gaps, concrete often flows from the gaps.

[0006] In this case, when the mold is removed after curing, it is necessary to remove excess concrete that has solidified in the sleeve. In addition, depending on the amount of water flowing into the sleeve, the sleeve mouth is covered with the concrete, and often hardens to cover the sleeve mouth.
In such a case, it was necessary to remove the covering concrete and open the sleeve opening, but it was not immediately known where to open the opening, and sometimes it was necessary to hit the side of the beam to search for a place.

[0007] In view of the above problems, the problem to be solved by the present invention is to facilitate the temporary installation of the sleeve when assembling the beam formwork, and to prevent the sleeve opening from being buried when concrete is poured. It is still another object of the present invention to provide a beam sleeve fixing device that facilitates removal of a mold after curing.

[0008]

According to the present invention, a sheet material is adhered to a mold material, and a sleeve inserted between a pair of mold materials is supported by a hooking portion projecting from the sheet material. The reliability of the temporary work of the sleeve is realized with ease.

[0009] Further, by preparing a hook portion for receiving the sleeve opening from below and a band material for pressing from above, the both ends of the band material are engaged with the hook portion, so that the sleeve portion and the sleeve portion are joined together. It can be attached so as to cover the entire outer periphery. Thereby, the whole fixture becomes a lid to a sleeve mouth, and it can prevent inflow of concrete. Moreover,
Even if the sleeve is as long as the width of the form, it can be inserted by removing the band.

[0010] Also, by preparing a hook portion for receiving the sleeve opening from below and a band member for pressing from above, the both ends of the band material are engaged with the hook portion, so that the sleeve portion and the sleeve portion are joined together. It can be attached so as to cover the entire outer periphery. Thereby, the whole fixture becomes a lid to a sleeve mouth, and it can prevent inflow of concrete. Moreover,
Even if the sleeve is as long as the width of the form, it can be inserted by removing the band.

[0011] Further, the entire hook is formed so as to cover the entire outer periphery of the sleeve opening so as to serve as a lid, thereby preventing inflow of concrete.

Further, by realizing the sticking of the sheet material by adhesion, the fixing tool is peeled off from the mold material to enable its collection and reuse.

Further, the sheet material is used as a packing material for the sleeve opening to further prevent the concrete from flowing.

Further, the hook portion is made to adhere to the sheet material, the sleeve is positioned with respect to the previously attached sheet material, and the hook portion can be adhered to the sheet material later.

In the present application, the term "sticking" includes at least adhesion, adhesion and magnetic adhesion.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) First, an embodiment according to claims 1, 2 and 4 will be described with reference to FIGS.
Shown in FIG. 1 is a fixture 10 for hooking a sleeve inserted between beam profiles. This fixture 10
The hook portion 1 for mounting the sleeve port 21 and hooking it on the surface 6a of the sheet material 6 to be attached to the mold material is formed as a semicircular ridge, and is integrally formed and protruded. There is a band member 5 which is band-hung on the hooked sleeve opening 21 and both ends of which are engaged with the hook portion 1.

As shown in FIG. 1, the sheet material 6 is typically a resin circular sheet material slightly larger than the sleeve opening 21, and the back surface 6 b is an adhesive surface for the mold material 31. . The material of the sheet material 6 is not limited to resin, but may be rubber, vinyl, or paper. The shape is not limited to a circle, but may be a square or any other shape, and may be vertically long corresponding to the vertical direction in which a load is applied. The adhesive surface of sheet material 6 is
Is necessary, the sheet material 6 needs to have such an adhesive strength that the sheet material 6 does not peel off from the mold material 31 and can resist the weight of the sleeve 20. Adhesive strength is required for the entire sheet material.

The hook portion 1 has a semicircular shape in plan view, and is formed integrally with the surface 6a of the sheet material 6 so as to protrude at a height of about 30 mm. At both ends of the semicircular shape, engagement holes 1a for attaching a band member 5 described below are provided. In addition, the length of the sleeve 20 is shorter by several centimeters than the interval between the mold members 31, 31. This is for the play necessary for the operation of bridging the fixture 10. However, it has been considered that such a play can be securely stopped. Further, the planar shape of the hook portion 1 may be any shape as long as the sleeve port 21 can be hooked, and may be a U-shaped, a V-shaped, or the like. However, a shape that can be in close contact with the outer periphery of the sleeve opening 21 is preferable because the sleeve opening 21 can be closed together with the band material 5 to prevent the inflow of concrete. Also,
The hook portion 1 is not limited to being formed integrally with the sheet material 6, but may be provided as another member and attached to the sheet material 6.

The band member 5 has a band shape made of a soft resin material, and both ends thereof are hook portions 5a which can be engaged with the engagement holes 1a. Then, when the band is hooked and engaged with the sleeve opening 21 hooked on the hooking portion 1, the sleeve opening 21 is connected to the hooking portion 1 to form an entire circumference and cover the outer periphery of the sleeve opening 21. The material of the band material may be hard, and may be formed so as to cover the outer periphery of the sleeve opening 21.
The point is that any structure can be used as long as it can cover the entire outer periphery of the sleeve opening in connection with the engaging portion.

When using such a fixing device 10,
Generally, two are used as a pair. That is, the two fixtures 10 and 10 are attached to the beam member 31 facing each other so as to face each other, and the sleeve 20 is hung over this to be hung on each. Thereafter, the band member 5 is hung from above, and the hook portions 5a, 5a at both ends of the band material are engaged with the engaging holes 1a, 1a of the engaging portion, thereby completing the temporary installation of the sleeve 20. If the attached sheet material 6 is further nailed, the attachment of the sheet material 6 to the mold material 31 becomes strong, and a nail hole or the like for the nail material is formed.
It is free to set in.

(Embodiment 2) An embodiment relating to the description of claims 1, 4 and 6 will be described with reference to FIGS. FIG. 4 shows a fixing device 10 according to claims 1, 4 and 6, which comprises a sheet material 6 and a semicircular ring-shaped engaging portion 1 to be adhered thereto.

The sheet member 6 is a circular sheet member made of resin as in the first embodiment, and the back surface 6b is also an adhesive surface.
The front surface 6a is a ground surface to which the hook portion 1 described below easily adheres.

The hook 1 has a semicircular ring shape, and
The surface to be adhered to 1 is an adhesive portion 3 as shown in FIG. Such a hook portion 1 sticks the sleeve port 21 to the sheet material 6 so that the sleeve port 21 can be received from below, and locks the sleeve port 21 to the hook portion after the sticking. In addition, if the hooking portion 1 is used to hook a heavy sleeve, the area of the adhesive portion 3 can be increased to cope with the problem. Note that the hooking portion 1 does not need to be a single member, and may be a member in which two or three block-like members are stuck around the lower periphery of the sleeve opening 21.

Next, an example of a process of temporarily setting the sleeve by the fixing tool 10 will be briefly described with reference to FIG. First, the approximate position where the sleeve 20 is passed over the inner surfaces of the pair of mold members 31 and 31 is positioned, and the sheet members 6 and 6 are attached thereto (FIG. 6A). Next, the sleeve 20 is attached to the mold 31,
After positioning between the sheets 31 and the sheet material 6 (FIG. 6B), the hooking portion 1 is strongly pressed against the sheet materials 6 and 6 so as to be adhered so as to be supported from under the sleeve openings 21 and 21. Then (FIG. 6 (c)), it is completed as shown in FIG. 6 (d). Of course, the procedure may be other than this procedure, and may be performed in an appropriate setup according to the situation at the work site.

In the above-mentioned fixing device, the hook portion may be bonded to the sheet material to be integrated from the beginning, or the sheet material and the hook portion may be integrally formed of resin or the like. It may be. Further, when the sheet material is attached to the mold material, it may be bonded. Alternatively, the sticking may be realized by magnetic sticking. For example, if a sheet material is formed of a rubber plate or the like having magnetic sticking properties, the sticking can be easily performed on a mold made of an iron plate, and the position can be corrected freely. Also, as shown in FIG.
The double-sided adhesive tape 4 is adhered to the main body 2 of the hooking portion, and the adhesive portion 3
If you have formed a double-sided adhesive tape, you can replace the old double-sided adhesive tape with a new one. Can be used repeatedly. Also, if the profile is disposable, the fasteners that are discarded together may be of a degree that can withstand a single use.

(Embodiment 3) Next, with reference to the first and third aspects, as shown in FIG. 8, the fixing tool 10 covers the entire outer periphery of the sleeve port 21 so as to cover this sleeve port. 21 so that the fixing tool can be put on the sleeve opening like a lid. The fixing device 10 is particularly suitable for a slide-type sleeve, and can be easily hooked by returning the fixing member 10 to its original length after being delivered in a contracted state. Of course, it may be used for an ordinary non-sliding sleeve.

(Embodiment 4) Referring to FIG. 5, as shown in FIG. 9 (a), this fixture 10 is formed by forming a sheet material 6 from a packing material. The overall shape is the same as that of the above-described sheet material, but it has some thickness and can fill the gap generated between the sleeve opening 21 and the mold material 31 as shown in FIG. 9B. Anything may be used. For example, a three-layer structure in which a sponge-like thick sheet is sandwiched between vinyl sheets or the like may be used.

[0029]

As described above, the fixing device for the beam sleeve according to the first aspect of the present invention is "a fixing device inserted between the beam members, and is attached to the beam member. A hook portion for hooking the sleeve is protruded from the surface of the sheet material. " Therefore, the work of temporarily installing the sleeve on the beam formwork is facilitated, and even if the formwork has no space for hitting with a hammer, as compared with the case where the formwork is nailed, or a reinforcing bar is provided in the formwork. Even when such a system is assembled, high work efficiency can be achieved. In addition, even if the sleeve is slightly shorter than the width of the form, it can be compensated by the hook portion. In addition, workability can be further improved by positioning and attaching each mold material in advance before assembling the mold.

According to a second aspect of the present invention, there is provided the beam sleeve fixing device according to the first aspect of the invention, wherein the entire outer periphery of the sleeve opening is formed together with the engaging portion by engaging both ends with the engaging portion. A band material that can be attached so as to cover it. " Therefore, in addition to the effect according to the first aspect, the band covers the entire outer periphery of the sleeve opening together with the hooking portion, and the entire fixing tool serves as a lid to the sleeve opening, so that the inflow of concrete can be prevented. Therefore, when removing the mold after curing, it is no longer necessary to remove the excess concrete hardened in the sleeve, and the inside of the sleeve is finished finely. In addition, since the band material can be detached, the sleeve can be easily detached.

According to a third aspect of the present invention, in the first aspect of the present invention, there is provided a beam sleeve fixing device.
It can be inserted into the sleeve opening so as to cover the entire outer periphery of the sleeve opening. " Therefore, in addition to the effect according to claim 1 or 2, the sleeve opening can also be closed, and concrete does not flow into the sleeve.

According to a fourth aspect of the present invention, there is provided the beam sleeve fixing tool according to any one of the first to third aspects, wherein "adhesive for adhering the sheet material to the mold material on the back surface thereof". A layer is provided. " Therefore, in addition to the effects according to the first to third aspects, when the mold is removed from the mold after curing, it can be peeled off from the mold and collected, so that the fixture can be used repeatedly. Also, when removing the formwork, the sheet is exposed on the concrete side of the beam, so the position of the sleeve opening can be immediately understood, and the sleeve opening covered with concrete is hit on the side of the beam as usual. No more searching.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, "the sheet material is formed of a packing material."
It is characterized by. Therefore, in addition to the effects according to the first to fourth aspects, it is possible to more reliably prevent concrete from flowing into the sleeve.

According to a sixth aspect of the present invention, there is provided a beam sleeve fixing device according to any one of the first to fifth aspects.
It is characterized in that "the engaging portion is adhered to the surface of the sheet material". Therefore, in addition to the effects according to the first to fifth aspects, the positioning of the sleeve can be performed first, and then the locking portion can be attached, thereby increasing the degree of freedom of the temporary work.
Also, for example, by using two semicircular hooks and covering the entire circumference of the sleeve opening, the inflow of concrete can be prevented. Also, if you position the sheet material in advance and stick the sheet material,
The final alignment of the sleeve opening can be performed on site by the adhesion of the hook.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a fixture for a beam sleeve according to a first embodiment.

FIG. 2 is a view showing a state in which the sleeve is fixed using the beam sleeve fixing tool shown in FIG. 1;

FIG. 3 is a view showing a state in which a band material of a fixture of the beam sleeve shown in FIG. 1 is engaged with a hook portion.

FIG. 4 is a perspective view of an embodiment of a fixture for a beam sleeve according to the second embodiment.

FIG. 5 is an explanatory view of a state where the sleeve is temporarily provided on a mold using the fixture for the beam sleeve shown in FIG. 4;

FIG. 6 is a process diagram of temporarily attaching a sleeve to a mold using the beam sleeve fixing tool shown in FIG. 4;

FIG. 7 is a perspective view of a fixing tool in which a hook portion is made to adhere to a sheet material by using a double-sided adhesive tape for an adhesive portion of the fixing tool of the beam sleeve.

FIG. 8 is an explanatory view of a fixture for a beam sleeve according to a third embodiment.

FIG. 9 is an explanatory view of a fixture for a beam sleeve according to the fourth embodiment.

FIG. 10 is an explanatory view showing a state in which a mold made of a beam mold is combined with a slab mold, and a conventional sleeve is temporarily provided on the mold.

FIG. 11 is an explanatory view showing a state in which concrete flows into the sleeve from the sleeve opening.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Fixture of sleeve for beam 1 Hook part 2 Main body 3 Adhesive part 4 Double-sided adhesive tape 5 Band material 6 Sheet material 20 Sleeve 21 Sleeve mouth 30 Formwork 31 Beam material

Claims (6)

[Claims] 1. A fixing tool for hooking a sleeve inserted between beam members, said hook being used to hook a sleeve to a surface of a sheet material adhered to said beam member. A fixing device for a beam sleeve, wherein a portion is protruded. 2. A band member which is attached to both ends of said sleeve by attaching both ends thereof to said hook so as to cover the entire outer periphery of said sleeve opening.
A fixture for the beam sleeve as described. 3. The beam sleeve fixing device according to claim 1, wherein the hook portion can be inserted into the sleeve opening so as to cover the entire outer periphery of the sleeve opening. 4. The beam sleeve fixing tool according to claim 1, wherein the sheet material is provided with an adhesive layer on a back surface thereof for sticking to the mold material. 5. The beam sleeve fixing device according to claim 1, wherein the sheet material is formed of a packing material. 6. The sheet processing apparatus according to claim 1, wherein the hook portion is adhered to a surface of the sheet material.
6. The fixing device for a beam sleeve according to 4.