JPH0791055A - Concrete form forming method and clamping means used therefor - Google Patents

Abstract

PURPOSE:To form a form easily using lightweight material. CONSTITUTION:Plural form members formed of corrugated sheets with such strength as not to be deformed in the case of pouring concrete therein are jointed in the overlapped state of the end parts of the adjacent form members and erected on both sides of reinforced structure bodies 8, with the respective joint parts in the opposed state. Between the respective joint parts, reinforcement spacers provided with reinforcement through holes are fitted to a bar like spacer provided with screws 21 at bath and parts and having washers 22 formed of nut cylinders. Reinforcements are inserted through the reinforcement through holes, and the bar like spacer 2 is inserted through to the outside of each point part to dispose reinforcing plates 3. The flange 41 of each bolt rod 43 with the flange 41 provided at the tip part and with a female screw provided inside the tip part so as to be screwed with the screw of the bar like spacer 2 is brought into pressure contact with the reinforcing plate 3 to screw the female screw with the screw of the bar like spacer 2 and to tighten them. Reinforcing rods 5 are then disposed at the upper and lower parts of the reinforcing plates 3, and clamping washers are disposed thereon. Clamping nuts are then screwed with the bolt rods 43 and tightened to from a from.

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 also the problem that pollution at the time of incineration causes pollution problems.

Therefore, the inventor of the present invention can easily form a mold using a lightweight material without using plywood. After use, the form can be scraped or embedded to dispose of it by incineration or the like. Has invented a method of forming a mold for concrete and a fastener used therefor, which does not need to be performed, and has already applied for a patent.

Thus, the above-mentioned method of forming a mold has a structure in which a plurality of mold members made of corrugated plates having strength that does not deform when formed into a mold and poured with concrete are adjacent to each other. Two rows of frame members that have been joined by superimposing the ends thereof are erected so that each joining portion faces each other, and each of the joining members of the forming member of one row faces each of the joining members of the other row. Between the joint,
A spacer having a rod shape and provided with screws at both ends is inserted through each of the joints, and the spacer is inserted outside each of the joints to dispose a reinforcing plate. A flange is provided on the tip of the screw, and a bolt rod having a female screw for screwing the screw inside the tip is screwed onto the reinforcing plate by pressing the flange against the reinforcing plate, and then the upper and lower sides of the reinforcing plate are tightened. A reinforcing rod made of a deformed round bar, etc. is arranged on the above, a tightening washer is placed 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 fastener is provided with a spacer provided with screws on both sides, a reinforcing plate arranged on the joint portion of the mold member, and a flange provided on one side, and the spacer is provided inside thereof. A tightening member provided with a female thread for screwing the other side formed on a bolt rod on the other side, a reinforcing rod laterally arranged on the upper and lower portions of the reinforcing plate, and the bolt rod of the tightening member are inserted to reinforce the reinforcing member. It consists of a tightening washer for pressing the rod from above, and a tightening nut that is screwed into the bolt rod to press the tightening washer into pressure contact with the reinforcing rod. A spacer was passed through and the female screw of the tightening member was screwed and tightened to the screw, and the tightening member was inserted through the reinforcing rods arranged on the upper and lower parts of the reinforcing plate, and the tightening washer was arranged. At the same time, a nut is screwed onto the bolt rod of the tightening member and the nut is tightened to reinforce the tightening washer. It is obtained so as to press-contact.

The above-mentioned invention is extremely useful in solving the problems of the prior art, but when the interval between the facing mold members is large, a large amount of concrete is poured, and the pressure per unit is large, If the concrete is poured after forming the mold, the corrugated sheet may bulge outward and be deformed due to the pressure of the concrete, and such deformation causes the formed concrete wall to be deformed. It was found that there was a problem that irregularities were formed and problems occurred in the subsequent work.

[0008]

In view of the above-mentioned prior art, the present invention can easily form a mold by using a corrugated plate such as a light weight zinc corrugated iron plate for the mold member, and after the mold is formed. Even if the concrete is poured, the mold member is not deformed by the pressure of the concrete, and it is not necessary to dispose of it such as incineration by scrapping or embedding it after use. It is an object of the present invention to provide a frame forming method and a fastener used for the method.

[0009]

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. One in which a plurality of formwork members made of corrugated sheets having a strength that does not deform is joined by superimposing end portions of adjacent formwork members to each other, on both sides of a reinforcing bar structure interposed in the wall body to be constructed, The joints are erected so as to face each other, and a rod-shaped screw is provided at each end between each joint of the mold member on one side and each joint of the mold member on the other side facing each other. A rod-shaped spacer having a washer consisting of a nut cylinder is inserted through the joints and fixed and intervened by the washer, while a rod-shaped spacer having a rebar insertion hole is attached to the rod-shaped spacer. Insert the rebar into the rebar insertion hole and contact the rebar structure in the longitudinal direction. Then, a rod-shaped spacer is inserted into the outside of each of the joints, a reinforcing plate is arranged, a flange is provided at the tip of the screw of the rod-shaped spacer, and the screw is screwed into the inside of the tip. After the bolt rod provided with the female screw is pressed against the reinforcing plate with its flange and screwed and tightened, the reinforcing rods composed of deformed round bars and the like are arranged on the upper and lower sides of the reinforcing plate, and the tightening washer is placed on the reinforcing rod. While inserting the bolt rod and arranging it,
A mold is formed by screwing and tightening a tightening nut on the bolt rod and pressing the tightening washer against the reinforcing rod.

Further, the structure of the fastener is a washer consisting of a rod-shaped spacer provided with screws on both sides and a nut cylinder screwed into the screw of the rod-shaped spacer to fix the rod-shaped spacer. A reinforcing bar spacer having a reinforcing bar insertion hole for inserting a reinforcing bar and being attached to the inside of the washer of the bar-shaped spacer; a reinforcing plate arranged on the joint part of the form member; and a flange on one side. And a tightening member provided with a female screw for screwing the screw of the rod-shaped spacer therein and the other side of which is formed into a bolt rod, a reinforcing rod disposed laterally above and below the reinforcing plate, and From a tightening washer which inserts a bolt rod of a tightening member to press the reinforcing rod from above, and a tightening nut which is screwed to the bolt rod and presses the tightening washer to the reinforcing rod. And the screw of the bar-shaped spacer penetrates through the joint of the formwork member and the reinforcing plate. , The reinforcing bar is inserted into the reinforcing bar insertion hole of the reinforcing bar spacer, the female screw of the tightening member is screwed and tightened to the screw of the rod-shaped spacer, and the reinforcing rod arranged on the upper and lower parts of the reinforcing plate The tightening member is inserted through the screw to dispose the tightening washer, the nut is screwed onto the bolt rod of the tightening member, and the nut is tightened so that the tightening washer is pressed against the reinforcing rod. It is a feature.

[0011]

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 bar-shaped spacer having a plurality of plates, which are superposed and joined at their ends, are arranged in parallel in two rows with the joining parts facing each other, and screws are provided at both ends between the facing joining parts. By interposing it and tightening it with a tightening tool mainly composed of a bolt rod, the bar-shaped spacer can be called from both ends thereof, and the bar-shaped spacer having a rebar spacer having a rebar insertion hole is attached to the bar-shaped spacer. , Reinforcing reinforcing bars are laid inside the formwork members and abutted against each other in the length direction of the rebar structure, so that adjacent formwork members are tightly connected, which simplifies the work of forming the formwork. Not only can it be done, but the structure of the formed formwork There is no risk that the corrugated sheet, which is the formwork member, will be deformed by the pressure of the concrete when it is poured into the concrete. By embedding it as it is, disposal can be easily performed.

[0012]

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, FIG. 4 is a longitudinal side view of a main portion, and FIG. 5 is a perspective view of a reinforcing bar spacer.

In the drawing, 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 1500 mm wide,
The height shall be determined by the height of the wall to be constructed.

2 is a bar-shaped spacer provided with screws 21 on both ends.
22 is a washer made of a nut cylinder having a truncated cone shape, 23 is a rebar spacer provided with a rebar insertion hole 24 for inserting a reinforcing rebar, and 3 is a plurality of the form forming members 1. Forming member 1 with a reinforcing plate that is arranged on both sides
Is provided with a protrusion 31 that fits into the recess of the overlapping joint portion of the spacer 2. The tip of the screw 21 of the spacer 2 is inserted through the overlapping joint portion of the form forming member 1 and the reinforcing plate 3 to project. To do.

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
A washer member is provided with 61, the inside of which is formed into a pressing portion 62 for pressing the reinforcing rod 5 and the middle portion is formed into a rib-like curved portion 63, and 7 is a reinforcing bar insertion hole 24 of the reinforcing bar spacer 23. Reinforcing reinforcing bars inserted and erected, 8 is a reinforcing bar structure interposed in the wall body to be constructed.

In order to form the form forming member 1 into a form, first, a plurality of form forming members 1 are made into a state in which both end portions of the form forming members 1 are superposed and joined to each other in two rows. The rod-shaped spacers 2 are arranged parallel to each other with a space between them, and the bar-shaped spacers 2 are disposed between the facing overlapping joints.
Aligned with the reinforcing bar spacer 23, the screw 21 parts on both ends of the rod-shaped spacer 2 are inserted through the form forming members 1, 1 and the reinforcing plate 3 arranged outside thereof, and the washer is inserted from the inside of the screw 21. Tighten 22 and tighten the screw 21 on the part protruding from the reinforcing plate 3
After tightening the female screw 42 of the above, the flange 41 is pressed against the reinforcing plate 3, the reinforcing bar 7 is inserted into the reinforcing bar insertion hole 24 of the reinforcing bar spacer 23, and the reinforcing bar 7 is reinforced. The rebar structure 8
Abutting in the length direction.

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 rod 43 is inserted is arranged so as to press the reinforcing rod 5, and the bolt rod 43 is fitted with a nut. 44
By screwing and tightening the nut 44 so that the nut 44 is pressed against the curved portion 63 of the washer member 6, the form forming member 1 is firmly connected, and the reinforcing bar of the reinforcing bar spacer 23 is inserted. The rigidity of the formed frame as a structure is increased in combination with the reinforcing rebar 7 that is laid through the hole 24.

Therefore, by carrying out this work in sequence, a mold for forming a strong wall body having a desired thickness is formed, and even if the concrete is poured after the mold is formed,
The pressure eliminates the risk of the corrugated plate, which is a form member, being deformed.

[0020]

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. Further, as described above, since the corrugated sheet which is the formwork member is used for scrap after use or embedded as it is, there is no problem of pollution caused by incineration.

[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 FIG.

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

FIG. 5 is a perspective view of a reinforcing bar spacer.

[Explanation of symbols]

 1 Formwork forming member 2 Bar-shaped spacer 21 Screw 22 Washer 23 Rebar spacer 24 Reinforcing bar insertion hole 3 Reinforcing plate 4 Tightening member 41 Flange 42 Screw 43 Bolt rod 5 Reinforcing rod 6 Washer member 7 Reinforcing rod 8 Reinforcing bar structure body

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. On the opposite sides of a rebar structure to be interposed in the wall to be built, with each joint facing each other, and the formwork on the other side facing each joint of the formwork member on one side. A rod-shaped spacer, which is rod-shaped and has screws at both ends and is loosely mounted with a washer consisting of a nut cylinder, is fixed to and intervened by the washer by penetrating the respective joints. Attaching a rebar spacer having a rebar insertion hole in the rod-shaped spacer, inserting the rebar into the rebar insertion hole and abutting the rebar structure in the longitudinal direction of the rebar structure, outside the joints. Place the reinforcing plate by inserting the bar-shaped spacer, and insert the flank at the tip of the screw of the bar-shaped spacer. A bolt rod having an internal thread provided on the inside of the tip portion and provided with a female screw for screwing with the screw, the flange is brought into pressure contact with the reinforcing plate and screwed and tightened. A reinforcing washer consisting of is arranged, and a tightening washer is arranged thereon by inserting the bolt rod, and
A method for forming a concrete form, comprising forming a form by screwing and tightening a tightening nut on the bolt rod and pressing the tightening washer against the reinforcing rod. 2. A bar-shaped spacer having screws on both sides, a washer composed of a nut cylinder screwed into the screw of the bar-shaped spacer to fix the bar-shaped spacer, and a reinforcing bar are inserted. A reinforcing bar spacer having a reinforcing bar insertion hole and attached to the inside of the washer of the rod-shaped spacer, a reinforcing plate arranged on the joint portion of the form member, and a flange provided on one side and the inside thereof A fastening member having a female rod for screwing a screw of a rod-shaped spacer and a bolt rod formed on the other side, a reinforcing rod laterally arranged above and below the reinforcing plate, and a bolt rod of the fastening member. A clamping washer which is inserted through and presses the reinforcing rods from above, and a tightening nut which is screwed into the bolt rod and presses the clamping washer to the reinforcing rod. The screw of the bar-shaped spacer is passed through the plate and the reinforcing plate, and the reinforcing bar of the reinforcing bar spacer Insert the reinforcing bar into the insertion hole,
A female screw of a tightening member is screwed tightly to the screw of the bar-shaped spacer, and the tightening member is inserted through the reinforcing rods arranged on the upper and lower portions of the reinforcing plate to dispose the tightening washer, and A fastening tool used for forming a concrete mold, wherein a nut is screwed onto a bolt rod of an attaching member and the nut is tightened so that the fastening washer is pressed against the reinforcing rod.