JPH0726715A - Forming method of concrete form and tightener to be used therefor - Google Patents

Abstract

PURPOSE:To dispense with the need of disposal such as incineration by using a lightweight material. CONSTITUTION:Two rows of panels in which a plurality of form members 1 consisting of corrugated plates are overlappedly joined to the end parts of the adjacent form members 1 are erected in such a way that the respective joining parts are opposite to each other. Between the respective joining parts of the row of the form members 1 on one side and the respective joining parts of the form members 1 on the other side row being opposite to the former, a spacer of a bar shape and provided with screws on its both ends is interposed so as to penetrate the respective joining parts, and a bolt bar 43 is provided with a flange at its end part and also provided with a female screw into which the screw of the spacer is screwed, on the inside of the end part. After the flange of the bolt bar 43 has been pressedly brought into contact with a reinforcing plate and tightly screwed in, reinforcing bars 5 consisting of deformed round bars or the like are arranged above and below the reinforcing plate. Thereon, a tightening washer is insertedly arranged so that the bolt bar is penetrated therethrough, and also a tightening nut is screwed in on the bolt bar, so that the tightening washer is pressedly brought into contact with the reinforcing bar to form a form.

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 Conventionally, as a method of easily forming a mold for concrete, the invention of the present inventor is disclosed in Japanese Examined Patent Publication No. 63-275.
There is one described in JP-A No. 01-35147. What is described in these publications is a method of forming a mold using a special fastening tool using a thick plywood as a member for forming a mold, and compared with a general method before that,
It was useful because the mold can be easily formed.

However, since the plywood used in this method is thick and relatively heavy, it is expensive and inconvenient to transport. Moreover, it is disposed of by incineration after use, and therefore it is disposed of. Not only is it troublesome, but there is a problem in that pollution problems due to smoke during incineration occur.

[0004]

In view of the above-mentioned prior art, the present invention can easily form a mold using a lightweight material without using plywood, and scraps after use. Alternatively, it is an object of the present invention to provide a mold forming method for concrete which does not require disposal such as incineration by embedding and a fastening tool used for the method.

[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 thereof is constructed so that it is formed in a mold and a concrete is poured into the mold. Two rows of a plurality of mold members made of a corrugated plate having a strength not to be deformed and joined by superposing the end portions of the adjacent mold members to each other are erected with each joining portion facing each other. Between each joint of the mold members and the joint of the other mold member of the other row, a spacer having a rod shape and provided with screws at both ends is inserted through each joint. Then, a spacer is inserted into the outside of each of the joints to dispose a reinforcing plate, a flange is provided at the tip of the spacer screw, and a female screw is screwed to the screw inside the tip. After tightening the bolt rod provided with the flange with the reinforcing plate by pressure, the reinforcing plate is A reinforcing rod composed of deformed round bars etc. is arranged on the top and bottom, and a tightening washer is inserted on the reinforcing rod, and a nut for tightening is screwed into the bolt rod, and the nut is tightened. Then, the mold is formed by pressing the tightening washer against the reinforcing rod.

Further, the structure of the tightening tool is such that a spacer provided with screws on both sides, a reinforcing plate arranged on the joint portion of the form members,
A fastening member having a flange provided on one side and a female screw for screwing the screw of the spacer provided inside thereof and a bolt rod on the other side, and a reinforcing rod laterally arranged 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 to the reinforcing rod. It consists of a nut and a spacer for the joint of the formwork member and the reinforcing plate.
The screw of the support is passed through and the female screw of the tightening member is screwed and tightened on the screw, and the tightening member is inserted through the reinforcing rods arranged on the upper and lower portions of the reinforcing plate, and the tightening washer is arranged. A nut is screwed onto the bolt rod of the tightening member, and the tightening washer is pressed against the reinforcing rod by tightening the nut.

[0007]

According to the method of the present invention, a corrugated plate such as a zinc corrugated iron plate having strength not to be deformed when a concrete is formed and cast into a mold without using a panel as a mold member forming the mold. A plurality of plates are superposed and joined at their ends, and the joints are arranged in parallel in two rows with the joints facing each other, and a spacer having screws at both ends is provided between the facing joints. Then, by tightening with a tightening tool mainly composed of a bolt rod, the spacers can be called from both ends thereof, and the adjacent form members are tightly connected to each other. Not only the work can be performed easily, but also after the formed mold is used, it can be easily removed by peeling it off for scrap or embedding it as it is.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an example of implementing 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.
Similarly, FIG. 4 is a partially enlarged side view, and FIG. 4 is a vertical side view of a main part.

In the figure, reference numeral 1 denotes a mold forming member made of a zinc corrugated iron plate, which has a strength such that it is not bent even if it is formed on the mold and a concrete is poured and pressure is applied to the inner wall. Its size is 0.25 mm thick and 500 mm wide,
The height shall be determined by the height of the wall to be constructed.

2 is a spacer having screws 21 at both ends, 22
Is a washer made of a nut, and 3 is a reinforcing plate in which a plurality of the formwork forming members 1 are superposed on both sides thereof,
A protrusion 31 is provided at the center in the height direction so as to fit in the recess of the mold forming member 1, and the tip of the screw 21 of the spacer 2 is overlapped with the mold forming member 1 and the reinforcing plate. Insert 3 to make it protrude.

Numeral 4 is a tightening member having a flange 41 on one side, a female screw 42 for screwing the screw 21 of the spacer 2 therein, and a bolt rod 43 on the other side. When attaching, the nut 44 is screwed.

Reference numeral 5 is a reinforcing rod which is arranged horizontally above and below the reinforcing plate 3, and is a deformed round bar or the like. 6 is a vertically curved wall
61 is a washer member in which a pressing portion 62 for pressing the reinforcing rod 5 is formed on the inside thereof and a middle portion thereof is formed into a rib-like curved portion 63.

In order to form the mold forming member 1 on the mold, first, a plurality of the mold forming members 1 are made into a state in which both ends thereof are superposed and joined to each other in two rows. The spacers 2 are arranged in parallel with a space therebetween, and the spacers 2 are arranged between the opposing polymerized joints, and the screws 21 at both ends of the spacers 2 are
The form forming members 1, 1 and the reinforcing plate 3 arranged on the 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 attached to the screw 21 protruding from the reinforcing plate 3. The flange 41 is pressed against the reinforcing plate 3 by screwing.

In this state, the reinforcing rods 5 are arranged above and below the reinforcing plate 3, and the washer member 6 having the bolt rod 43 inserted therethrough is arranged so as to press the reinforcing rod 5, and at the same time, the bolt rod 43 is pressed. The nut 44 is screwed into the nut 44, and the nut 44 is bent into the curved portion of the washer member 6.
Since the form forming members are firmly connected to each other by tightening them so that they are pressed against 63, a form which is strong and has a desired thickness can be formed by sequentially performing this work. Of.

[0015]

Since the present invention is as described above, according to the method of the present invention, a mold for concrete can be formed more simply, efficiently and at a lower cost than the conventional case. Also, the fastener used for forming the mold has a simple structure and can be manufactured and provided easily at low cost.

[Brief description of drawings]

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

FIG. 2 is a partially enlarged plan view of the concrete frame of FIG.

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

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

[Explanation of symbols]

 1 Formwork forming member 2 Spacer 21 Screw 22 Washer 3 Reinforcing plate 31 Protrusion 4 Tightening member 41 Flange 42 Screw 43 Bolt rod 5 Reinforcing rod 6 Washer member 61 Bending wall 62 Pressing portion 63 Curved portion

Claims (2)

[Claims] 1. A plurality of mold members made of a corrugated plate having a strength that does not deform when formed into a mold and poured with a concrete, and end portions of adjacent mold members are polymerized and joined. The two rows of the two columns are erected upright with the respective joints facing each other, and between the respective joints of the mold members of one row and the respective joints of the mold members of the other row, both ends are rod-shaped. A spacer provided with a screw is inserted through each of the joints, a spacer is inserted into the outside of each of the joints, and a reinforcing plate is arranged. A rod rod provided with a flange on its inner portion and a female screw to be screwed with the screw inside the tip portion, the flange is pressed against the reinforcing plate and screwed and tightened, and then the deformed round bars are provided above and below the reinforcing plate. And a tightening washer on which the bolt rod is inserted. A tightening nut is screwed onto the toe rod, the nut is tightened, and the tightening washer is pressed against the reinforcing rod to form a formwork. Forming method. 2. A spacer provided with screws on both sides, a reinforcing plate arranged on the joint portion of the form member, a flange provided on one side, and the screws of the spacer are screwed into the interior thereof. A tightening member provided with a female screw and a bolt rod formed on the other side, a reinforcing rod laterally arranged on the upper and lower portions of the reinforcing plate, and a bolt rod of the tightening member are inserted to put the reinforcing rod on them. A tightening washer that is pressed down from the above, and a tightening nut that is screwed into the bolt rod and presses the tightening washer against the reinforcing rod. And tighten the female screw of the tightening member to the screw, and insert the tightening member through the reinforcing rods arranged on the upper and lower parts of the reinforcing plate to dispose the tightening washer and tighten it. A nut is screwed onto the bolt rod of the member, and the tightening washer is pressed against the reinforcing rod by tightening the nut. Concrete characterized by
A fastener used to form a mold for a toe.