JP2666113B2 - Method of forming mold for concrete and fastener used therefor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for easily forming a mold for concrete and a fastener used for the method.

[0002]

2. Description of the Related Art Heretofore, as a method of easily forming a mold for concrete, there has been proposed a method disclosed in JP-B-63-275 according to the invention of the present inventor.
JP-A No. 01-35147 and JP-A-1-35147. What is described in these publications is a method of using a thick plywood as a member for forming a mold, a method of forming a mold using a special fastener, compared with a general method before that,
It has been useful because a mold can be easily formed.

[0003] However, the plywood used in this method is thick and relatively heavy, so it is expensive and inconvenient to transport, and after use it has been disposed of by incineration. Not only is it troublesome, but also there is a problem of pollution caused by smoke during incineration.

[0004]

DISCLOSURE OF THE INVENTION In view of the above-mentioned prior art, the present invention can easily form a mold using a lightweight material without using a plywood, and scraps it after use. It is another object of the present invention to provide a method for forming a concrete formwork and a fastener used for the same, which do not require disposal such as incineration by embedding.

[0005]

SUMMARY OF THE INVENTION The present invention has been made for the purpose of solving the above-mentioned problems, and the method of forming a mold includes a method of forming a mold and pouring a concrete. Two rows of a plurality of form members made of corrugated sheets having strength not to be deformed and joined by superposing the ends of adjacent form members to each other with two joints facing each other, and one of the rows is erected. A spacer having a rod-like shape and having screws at both ends is interposed between the joints of the form member and the joints of the form members of the other row opposed to each other by penetrating the joints. A reinforcing plate is provided by inserting a spacer outside each of the joints. A female screw is provided inside the distal end of the spacer with a flange provided at the distal end thereof. After the bolt rod provided with the flange is pressed into contact with the reinforcing plate by screwing the flange, the reinforcing plate A reinforcing rod made of a deformed round bar or the like is arranged on the upper and lower sides, a tightening washer is inserted through the bolt rod, and a tightening nut is screwed onto the bolt rod, and the nut is tightened. Then, a formwork is formed by pressing the fastening washer against the reinforcing rod.

[0006] The structure of the fastener includes a spacer provided with screws on both sides, a reinforcing plate disposed on a joint of the form member,
A fastening member having a flange provided on one side and a female screw for screwing the spacer screw therein, and a bolt rod formed on the other side; and a reinforcing rod arranged horizontally above and below the reinforcing plate. A tightening washer for inserting the bolt rod of the tightening member to press the reinforcing rod from above, and a tightening washer screwed to the bolt rod to press the tightening washer against the reinforcing rod. Nuts and joints of formwork members and reinforcement plate
And a female screw of a tightening member is screwed and tightened to the screw, and the tightening member is inserted through a reinforcing rod disposed on the upper and lower portions of the reinforcing plate, and a tightening washer is arranged. A nut is screwed into the bolt rod of the tightening member, and the tightening washer is pressed against the reinforcing rod by tightening the nut.

[0007]

The method of the present invention does not use a panel as a mold member for forming a mold, but forms a wave on a zinc-corrugated sheet or the like having a strength which is not deformed when the concrete is poured into the mold. Two or more boards are superposed and joined at their ends. Two rows are arranged in parallel with the joints facing each other, and spacers with screws at both ends are interposed between the opposed joints. Then, the spacer is called in from both ends by tightening with a fastener mainly composed of a bolt rod, and the adjacent form members are tightened and connected. Not only can the work be carried out easily, but also after disposal of the formed form, it can be easily disposed of by scraping it off and providing it for scrap or embedding as it is.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of an example of a concrete mold formed by the method of the present invention, FIG. 2 is a partially enlarged front view of FIG.
Is a partially enlarged side view, and FIG. 4 is a vertical sectional side view of a main part.

In the drawing, reference numeral 1 denotes a mold forming member made of a galvanized iron sheet, which has such strength that it does not bend even if pressure is applied to the inner wall formed by pouring a concrete into the mold, and Its size is 0.25mm thick and 500mm wide,
The height is determined by the height of the wall or the like to be constructed.

Reference numeral 2 denotes a spacer provided with screws 21 at both ends, 22
Is a washer comprising a nut, and 3 is a reinforcing plate in which a plurality of the formwork forming members 1 are arranged on both sides thereof, and
A protrusion 31 is provided at the center in the height direction to fit into the concave portion of the form-forming member 1 overlapped, and the tip of the screw 21 of the spacer 2 is connected to the overlapped joint of the form-forming member 1 and the reinforcing plate. 3 so as to protrude.

Reference numeral 4 denotes a fastening member having a flange 41 provided on one side, a female screw 42 for screwing the screw 21 of the spacer 2 therein, and a bolt rod 43 formed on the other side. At the time of attachment, the nut 44 is screwed.

Reference numeral 5 denotes a reinforcing rod arranged horizontally above and below the reinforcing plate 3, and a deformed round bar or the like is used. 6 is a curved wall up and down
This is a washer member provided with 61, the inside thereof being formed as a pressing portion 62 for pressing the reinforcing rod 5, and the intermediate portion being formed as a rib-shaped curved portion 63.

In order to form the mold forming member 1 into a mold, first, a plurality of mold forming members 1 in a state where both ends thereof are overlapped and joined are appropriately arranged in two rows. The spacers 2 are arranged in parallel at an interval, and the spacers 2 are arranged between the opposed overlapping joints.
The mold forming members 1 and 1 and the reinforcing plate 3 disposed outside thereof are inserted, the washer 22 is tightened from the inside of the screw 21, and the female screw 42 of the tightening member 4 is screwed into the screw 21 protruding from the reinforcing plate 3. The flange 41 is pressed against the reinforcing plate 3 by screwing and tightening.

In this state, the reinforcing rods 5 are arranged above and below the reinforcing plate 3, and the washer member 6 through which the bolt rods 43 are inserted is arranged so as to press the reinforcing rods 5 from above, and the reinforcing rods 5 are attached to the bolt rods 43. The nut 44 is screwed, and the nut 44 is bent at the curved portion of the washer member 6.
Since the form forming members are firmly connected by being tightened so as to be pressed against the 63, by successively performing this operation, a form for obtaining a strong and desired thickness wall or the like is formed. It is.

[0015]

As described above, according to the present invention, according to the method of the present invention, it is possible to form a mold for concrete in a simpler, more efficient and lower cost than in the prior art. Further, the fastener used for forming the mold can be manufactured and provided at a low cost with a simple structure.

[Brief description of the drawings]

FIG. 1 is a front view of an example of a concrete mold formed by the method of the present invention.

FIG. 2 is a partially enlarged plan view of the concrete formwork of FIG. 1;

FIG. 3 is a partially enlarged side view of the concrete formwork of FIG. 1;

FIG. 4 is a vertical sectional side view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Form-forming member 2 Spacer 21 Screw 22 Washer 3 Reinforcement plate 31 Ridge 4 Tightening member 41 Flange 42 Screw 43 Bolt rod 5 Reinforcement rod 6 Washer member 61 Bent wall 62 Pressing part 63 Curved part

Claims (2)

(57) [Claims] 1. A method of joining a plurality of form members made of corrugated sheets having strength not to be deformed when a concrete is poured into a form form by pouring concrete by overlapping end portions of adjacent form members. The two rows are then erected with their joints facing each other, and between the joints of the mold members of one row and the joints of the mold members of the other row facing each other, are rod-shaped ends. A spacer provided with a screw is interposed by penetrating each of the joints, a spacer is inserted through the spacer outside each of the joints, and a reinforcing plate is provided. A bolt rod provided with a flange at the portion and having a female screw screwed into the screw at the inside of the distal end portion is screwed and tightened by pressing the flange against the reinforcing plate, and then a deformed round bar is formed above and below the reinforcing plate. And a tightening washer with the bolt rod inserted therethrough. A nut for tightening is screwed to the rod, the nut is tightened, and the tightening washer is pressed against the reinforcing rod to form a mold. Forming method. 2. A spacer provided with a screw on both sides, a reinforcing plate disposed on a joint of the form member, and a flange provided on one side, and the screw of the spacer is screwed therein. A tightening member provided with a female screw and formed on the other side as a bolt rod; a reinforcing rod arranged laterally above and below the reinforcing plate; and And a tightening nut screwed onto the bolt rod to press the tightening washer against the reinforcing rod, and a spacer screw is provided at the joint of the formwork member and the reinforcing plate. And a female screw of a tightening member is screwed and tightened to the screw, and the tightening member is inserted through a reinforcing rod disposed on the upper and lower portions of the reinforcing plate, and a tightening washer is arranged. A nut is screwed into the bolt rod of the member, and the tightening washer is pressed against the reinforcing rod by tightening the nut. Concrete characterized by
Fasteners used to form the mold for