JP3057614U - Wall formwork and spacers used for it - Google Patents

Abstract

(57) [Summary] [Problem] To easily construct a concrete wall body in which a mold surface becomes a finished surface as it is. SOLUTION: A plurality of frame plate members having a finished surface on the surface formed by forming a groove having a T-shaped cross section along the short side direction on the back surface side of a long frame plate material, And a spacer formed by integrally connecting and connecting a flange member having a T-shaped cross section, which is disposed on both right and left ends thereof, with a T-shaped base inside thereof and a connecting body therebetween. A T-shaped flange member of a spacer is inserted into a T-shaped groove of each of the molds to form a wall mold.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the present invention pertains] The present invention relates to a wall formwork used for the construction of a concrete structure wall in which the surface of the formwork driven into the wall becomes a finished surface as it is, and is used for the same. Related to a spacer (assembly support).

[0002]

2. Description of the Related Art When constructing a wall of a concrete structure, (1) firstly assemble reinforcing bars in a grid shape, and sandwich a plywood form or a metal form through a form assembling support. (2) Next, the supporting material is assembled in a girder shape with steel pipes or the like on the outer surface of the facing formwork, and the form tie hung on the supporting material is fastened to fix the formwork. (3) Concrete is poured in between, and the formwork is dismantled at the stage where the concrete hardens to construct a wall. (4) Finally, the exterior is applied to the exterior wall, and the interior is applied to the interior wall. The method of applying is common.

[0003] In view of this, the inventor of the present invention, in a previous patent application (Japanese Patent Application Laid-Open No. H8-312037), uses a foam material as a mold plate, and attaches a connecting member having a detachable engaging portion to one side of the mold plate. Some of them are fixed, the foaming forms are vertically arranged facing each other at an arbitrary interval, and the engaging portions of the connecting members are engaged with each other to maintain the interval of the foaming forms. It proposes a method of forming a concrete wall by placing concrete in the building and using the foam formwork as a wall.

In another prior patent application (Japanese Patent Application Laid-Open No. Hei 9-242231), the present inventor vertically arranges formwork plate members having insertion slots formed through the plate thickness direction at arbitrary intervals. By inserting a connecting member having a detachable fitting portion from the outer surface side into this form plate material, and fitting the fitting portions of the connecting member to each other on the inner side, the spacing of the formwork is maintained. A formwork apparatus for forming a concrete wall body in which concrete is cast between the formworks and the formwork is used as a wall surface is presented.

[0005] According to the methods presented in the above-mentioned patent applications, after the poured concrete is solidified, the form is integrated into the concrete wall so as to be buried in the concrete wall. This has the advantage that it can be used as a heat insulating material or exterior material for concrete walls. In addition, since it is not necessary to dismantle the formwork, it is possible to achieve a reduction in working time and a reduction in construction cost in the construction of the wall.

[0006]

[Problems to be Solved by the Invention] However, according to the methods disclosed in the above-mentioned patent applications, the surface of the formwork driven into concrete is not suitable as a finished surface, and it is necessary to finish the surface. In addition, since the formwork is assembled by engaging or fitting the connecting members, the structure of the connecting body for preventing the engaging portion from coming off is complicated, and the connecting member is inexpensive. That the number of connecting members is twice as large as when using a general formwork assembly support, and that one of the formwork and connecting parts is defective If there are, there are difficulties such as the whole becoming defective and lowering of the yield.

[0007]

Means for Solving the Problems The present invention solves the above problems by the following constitution. (1) Forming a T-shaped groove along the short side on the back side of a long form board, and forming a plurality of form board having a finished surface on the surface, with the back side inside. And a pair of flange members having a T-shaped cross-section, which are disposed facing each other at right and left ends thereof, and are vertically arranged and connected to each other vertically. A spacer formed by connecting and integrating with a connecting body with the inside facing inward, and a flange member having a T-shaped cross section of the spacer is fitted into a groove having a T-shaped cross section of each of the molds. Formwork. (2) A plurality of frame plate members having a finish surface on the surface formed by forming a groove having a T-shaped cross section along the short side direction on the back surface side of the long frame plate member, with the back surface side inside. With the long sides in the horizontal direction, and connected vertically so as to face each other, and between them, flange members having a T-shaped cross section, which are arranged at both left and right ends, face each other. The spacers formed integrally by connecting them with the connecting body with the inside in the form of a T-shaped groove in the T-shaped cross section of each of the formwork, the lower half of the flange member having a T-shaped cross section in the lower part are elongated. A wall formwork, wherein the formwork plate is fitted in a T-shaped groove, and the upper half of the flange member is fitted in the T-shaped groove of the upper long formwork plate. . (3) The long form plate is formed by forming a groove having a T-shaped cross section along the short side direction and a plurality of slit grooves along the long side direction on the back side of the long frame plate material. The described wall formwork. (4) A flange member having a T-shaped cross section, which is disposed opposite to the left and right ends, for use in the configuration of the wall form described in any one of the preceding items 1 to 3, with their T-shaped bases inside. A spacer that is connected and integrated with a connector.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of a spacer according to the embodiment of the present invention, FIG. 2 is a perspective view of a long frame plate, FIG. 3 is a cross-sectional view of the long frame plate, and FIG. is there. In the figure, 1 is a spacer (form assembly support), 1a is a flange member having a T-shaped cross section, 1b is a connecting body, 1b 'is a rib, 2 is a long frame plate material, and 2a is a T-shaped cross section. , 2b is a guide groove, 2c is a guide ridge, 3 is a concrete base, 4 is a reinforcing bar (vertical), and 4 'is a reinforcing bar (horizontal). The outline of the method of assembling the formwork of the present invention and constructing a concrete wall using the formwork is as follows. That is, a plurality of the frame plate members 2 having a finished surface on the surface formed by forming a groove 2a having a T-shaped cross section on the back surface side of the long frame plate material 2 along the short side direction thereof, The flange members 1a having a T-shaped cross section, which are opposed to each other at the right and left ends, are connected to each other by a connecting body 1b with their T-shaped bases inside, and are integrated. The spacer 1 is assembled by inserting the T-shaped flange member 1a of the spacer 1 into the T-shaped groove 2a of each of the form plate members. Alternatively, for the purpose of absorbing and correcting the distortion due to the processing of the plate material and the shrinkage due to drying, a slit groove 2d is formed in the long side direction on the rear surface side of the long frame plate material 2 in the long side direction. It is preferable that the slit groove has a width of about 0.5 mm and a depth of about 1/2 of the plate thickness. When the spacer 1 is inserted into the groove 2a having a T-shaped cross section of the mold plate, as shown in FIG. The upper half of the flange member 1a is inserted into the T-shaped groove 2a of the upper elongated frame plate, and the upper half of the upper and lower elongated frame plate is inserted into the T-shaped groove 2a of the frame plate. A good connection is good. Next, fresh concrete is poured and poured into the assembled wall form and cured and cured to construct a concrete wall having a finished surface.

In the above description, as shown in FIG. 1, the spacer (form assembling support) 1 has a flange member 1a having a T-shaped cross section disposed opposite to both left and right ends, and the T-shaped bases thereof are set inside. And is integrated by connecting with a connecting body 1b. The material is preferably a high-strength synthetic resin (for example, PP, ABS, FRP) or a light metal (for example, Al alloy). The spacer 1 is preferably integrally formed as a whole by molding means such as casting or injection molding from the viewpoint of maintaining high strength and reducing manufacturing costs. This is also a member having a substantially H-shaped appearance when viewed from the front, and flange members 1a, 1a having a T-shaped cross section formed on both sides thereof. Note that ribs 1b 'for reinforcement may be appropriately provided in other portions.

The long form board 2 is, for example, a long woody board having a thickness of about 1.6 to 1.7 cm and a width of about 13.5 to 18 cm. The surface of the board has a surface finish. It has been subjected. As shown in FIGS. 2 (a) and 2 (b), a guide groove 2b and a guide convex edge 2c to be fitted into the guide groove 2b are formed on the top and bottom of the long frame plate material 2, and the surface is finished. A groove 2a having a T-shaped cross section is machined in the longitudinal direction at an interval of about 20 cm on the back surface side on which is not provided. The groove 2a having a T-shaped cross section has a shape in which the flange member 1a having a T-shaped cross section of the spacer (form assembly support) 1 is fitted.

The operation of assembling a form using the spacer 1 and the long form plate 2 according to the present invention to construct a wall will be described with reference to FIG. First, the long frame members 2 are placed on the concrete base 3 so that the reinforcing bars (vertical) 4 are sandwiched between them, with their protruding edges 2c, 2c facing up. Into the grooves 2a, 2a having a T-shaped cross section of the long frame plates 2, 2, and press in about half. At this time, the spacer 1 is stably held by bringing the lower surface of the connecting portion 1b into contact with the upper surface of the reinforcing bar (horizontal) 4 '. Then, the T-shaped grooves 2a, 2a of the elongated frame plates 2, 2 to be subsequently assembled are formed in the flange members 1a, 1a of the spacer 1 protruding about half upward. The guide grooves 2b and 2b are fitted into and fixed to the guide protrusions 2c of the lower spacers 2 and 2, respectively.

After assembling the long form plates 2, 2,... And the spacers 1, 1,... To a required height by repeating the above steps, fresh concrete is poured into the assembled form. After casting, after a certain curing and hardening period, a concrete wall with finished surface is immediately completed. Formwork plates 2 made of wood-based materials have a heat insulating effect, but use a formwork made of metal or other materials other than wood-based materials, and use a heat-insulating material such as styrene foam on the inner surface of the formwork as necessary. It can be attached to enhance the heat insulation effect.

The method of assembling the formwork described above is a method of assembling both sides at the same time. However, a method of assembling only one side to a required height first and assembling another side later may be used.

[0014]

[Effects of the Invention] According to the present invention, a wall assembled by inserting and pushing a T-shaped cross-section flange member of a spacer having a fixed shape into a T-shaped cross-section groove formed in a long frame plate. Since it is a mold, the accuracy of the form width can be kept uniform, and the work of adjusting the form width can be omitted, and the wall form can be easily and quickly assembled. Also, since the spacer is of an integral type and has a simple structure, it has high breaking strength and can be manufactured at low cost.

Furthermore, since the formwork is not required to be dismantled and the surface of the formwork plate is used as a wall finishing material as it is, there is no need to separately attach an interior material. In addition, since no form waste is produced, the cost required for waste disposal is low and resources are saved. (Note) In the detailed description of the invention, FormTie is a registered trademark.

[Brief description of the drawings]

FIG. 1 is a perspective view of a spacer according to an embodiment of the present invention;

FIG. 2 is a perspective view of a form plate material;

FIG. 3 is a cross-sectional view of a form plate material;

FIG. 4 is an explanatory view of assembling the formwork of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spacer 1a Flange 1b Connecting body 1b 'Rib 2 Long frame plate material 2a T-shaped groove 2b Guide groove 2c Guide convex edge 2d Slit groove 3 Concrete base 4, 4' Reinforcing bar

Claims (4)

[Utility model registration claims] 1. A plurality of frame plate members having a T-shaped cross section formed on the back surface side of a long frame plate material along a short side direction thereof and having a finished surface on a surface thereof. With the inside
And it is raised with the long side direction sideways, connected vertically and opposed to each other, and between them, flange members having a T-shaped cross section which are arranged opposite to both right and left ends with their T-shaped bases inside. A spacer formed by integrally connecting and connecting with a connecting body by fitting a flange member having a T-shaped cross section of the spacer into a groove having a T-shaped cross section of each of the molds. 2. A plurality of frame plate members each having a T-shaped cross-section formed along the short side thereof on the back surface side of the long frame plate member and having a finished surface on the back side. On the inside, and raised with the long side direction sideways, connected vertically and opposedly arranged,
Between them, a cross section T disposed opposite to the left and right ends.
A spacer formed by integrally connecting the U-shaped flange members with their T-shaped bases inside by a connecting body is inserted into the T-shaped cross-sectional groove of each of the molds, and the spacer has a T-shaped cross-sectional flange member. By inserting the lower half thereof into the T-shaped groove of the lower long frame plate, and the upper half of the flange member into the T-shaped groove of the upper long frame plate. A wall formwork characterized by comprising. 3. A long frame member having a T-shaped cross section along a short side thereof and a plurality of slit grooves formed along a long side thereof on a back side of the long frame plate. 3. The wall form according to 1 or 2. 4. A flange member having a T-shaped cross section, which is disposed on both left and right ends to face each other, for use in the construction of the wall form according to any one of claims 1 to 3. A spacer that is integrated inside by connecting it with a connecting body inside.