JP3058718B2 - Panel-like structure reinforcement / connector - 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 of connecting a plurality of panel-like structures such as concrete form plates in a detachable manner with their respective edges abutting against each other. The present invention relates to a panel-like structure reinforcing / connecting tool for reinforcing an edge portion of a panel.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional example of a method of connecting concrete plywood forms by abutting each other as a typical example of a panel-like structure. This formwork 20
Is provided with a configuration in which a crosspiece 22 is nailed and fixed to a peripheral portion on the back side of the plywood 21, and the front side of the plywood 21 is a concrete casting surface. Then, in order to obtain a casting surface of a required width, a plurality of molds 2 whose edges are butted against each other are used.
The nails 23 are struck between the adjacent crosspieces 22 and 0 to connect them to each other.

[0003]

The above-described conventional method for connecting a mold has notable disadvantages as listed below. (A) In order to repeatedly use the used formwork, when separating them one by one using a bar or the like, the plywood 21 or the pier 2
2 which is damaged or nailed to plywood 21
2 was easy to lean. In addition, it takes time and effort to remove the nails that have been driven in, and the nails are scattered, which is dangerous. (B) Timber resources tend to be depleted worldwide, and even if the pier 22 is damaged, the replacement cost will increase if a new one is installed at each site, so that it is becoming difficult to replace it. (C) When the formwork 20 is scratched or reused while the mounting state of the crosspiece 22 is inclined, a gap is formed at a point where the formworks abut each other, and burrs are generated on the concrete casting surface. There was also a problem with worker health management, inhaling dust during removal. (D) Although the formwork 20 is usually used repeatedly, the fact that the pier 22 is fixed to the plywood 21 makes it bulky and requires a lot of costs for its storage and transportation. This was a major factor in reducing the cost of constructing the casting formwork. Therefore, the present inventor has devised a metal “reinforcing / connecting device for panel-like structure” having a completely unique configuration that can substantially eliminate the various problems as described above, and A patent application has been filed as Japanese Patent Application No. 1-258452. An object of the present invention relates to a reinforcing / connecting device for a panel-like structure which has been improved with the same object as the prior application invention.

[0004]

In order to achieve the above object, a panel-like structure reinforcing / connecting tool according to the present invention comprises a columnar body having a length substantially equal to the length of the edge a of the panel-like structure A. The edge reinforcement body B is detachably attached to one surface of the edge a, and is attached to each edge a, a of the two panel-like structures A, A butted against each other. And a connection fitting C for connecting the edge reinforcements B, B to each other. The edge reinforcement B is substantially equal in length to the edge a of the panel-like structure A, and has the edge a inserted therein. An edge insertion member 1 having a U-shaped cross section that can be fitted, and a substantially downward U-shaped main body member 2 that is substantially equal in length to the edge insertion member 1 and abuts on an upper surface thereof; A fastening member 3 for fixing the contact state and pressing and fixing the edge a inserted into the groove of the edge insertion member 1 in the groove; The connecting metal fitting C has a shape such that a metal strip is bent in a substantially U-shape, and a main body 12 having pin holes 12a provided in the vicinity of the bases of both legs in a penetrating manner, and a metal wire rod substantially in the shape. It has a shape that is bent in a U-shape, and has a U-shaped one leg formed of a stop pin 13 loosely fitted in the pin hole 12a in a retaining state, and the main body 12 interferes with the main body member 2. Two main bodies having the other leg of the stop pin 13 attached to the edges a, a of the two panel-like structures A, A, respectively, in a state where they are rotated to a position where they do not. After passing through the through holes 5 provided through the members 2 and 2,
By rotating the main body 12, the two main body members 2 are sandwiched between both legs of the main body 12. The connection fitting C is preferably formed in a shape in which the distal ends of both legs of the main body 12 are expanded in a C-shape. Further, the edge insertion member 1 may be provided with a positioning member 11 for preventing a positional shift when the edge insertion member 1 and the main body member 2 are tightened and coupled by using the fastening member 3. .

[0005]

First, in order to attach the edge reinforcing member B to the edge a of the panel-like structure A, the edge a is inserted into the U-shaped groove of the edge insertion member 1, and the edge insertion is performed. When the fastening member 3 for joining the fitting member 1 and the main body member 2 contacting the upper surface thereof is fastened, the lower end of one side wall of the main body member 2 having a downward U-shape is attached to the upper surface of the edge insertion member 1. The lower end of the other side wall is pressed against the upper surface of the edge a of the panel-like structure, and the mounting of the edge reinforcement B is completed simply and quickly. Since the positioning member 11 is attached to the edge insertion member 1, there is no problem that the mutual positional relationship between the main body member 2 and the edge insertion member 1 is shifted during the above-mentioned fastening. Next, a plurality of panel-like structures A in which the edge reinforcement body B is attached to the edge a,
In order to connect the respective edges together while abutting each other, the main body 12 of the connection fitting C is pivoted around the stop pin 13 and flipped up, and the other leg is reinforced by the adjacent edge. Each of the body members B, B is inserted into a pin through hole 5 provided in a penetrating manner in each of the body members 2, 2, and then the U-shaped body 12 is inserted.
Is rotated, and the two main body members 2 and 2 are strongly sandwiched between the U-shaped legs, and the adjacent edge reinforcements B and B are firmly connected detachably via the connection fitting C. You. The two main body members 2, 2 each having a width just before the space between the two legs of the main body 12 are provided.
In order to fit the main body 12 by straddling it, the portions b of the main body 12 at the ends of the two legs that are expanded in a C-shape may be hit with a hammer or the like and rotated.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a formwork plate A for placing concrete as a panel-like structure will be described below with reference to FIGS. First, in FIG. 1 showing a use state of the reinforcing / connecting device of the present invention, a reinforcing / connecting device of the present invention is attached to and detached from an edge a of a form plate A in place of the conventional wooden pier 22. It is freely attached. Reinforcement·
The connector includes a detachable edge reinforcing member B that reinforces the edge a of the form plate A and also serves as a connecting portion that connects the two form plates A, A butted to each other. Are used in combination with a plurality of connection fittings C for connecting adjacent edge reinforcements B, B of the form plates A, A.

As shown in FIGS. 1 and 2, the edge reinforcement body B is a long one having a substantially U-shaped cross section in order to insert the edge a of the form plate A. At the same time as fixing the edge insertion member 1 and the substantially downward U-shaped main body member 2 that is in contact with the U-shaped upper surface of the edge insertion member 1,
The fastening member 3 serves to fix the edge insertion member 1 to the edge a of the form plate A. The edge insertion member 1 and the main body member 2 are both formed by extruding a metal such as aluminum or the like, and have a length substantially equal to the length of the edge a. Bolt holes 4 are provided at a plurality of locations on the upper surface of the main body member 2 at equal intervals in the longitudinal direction. In the upper part of both side walls of the main body member 2, pin through holes 5 are provided at a plurality of locations in the longitudinal direction.
Are provided in a penetrating manner. Reference numeral 6 denotes nail holes provided at a plurality of locations on both side walls. Further, on the lower edge of one of the side walls of the main body member 2, a claw-shaped projection 7 is provided at a position below each of the plurality of bolt holes 4 by punching or the like. On the other hand, a plurality of bolt holes (not shown) are provided on the upper surface of the edge insertion member 1 at a plurality of positions vertically opposed to the bolt holes 4 provided in the main body member 2.

The fastening member 3 is a fastening bolt 8 projecting downward through the bolt hole 4 on the upper surface of the main body member 2 and the bolt hole on the upper surface of the edge insertion member 1, and is screwed to the projecting end. Square nut 9 (see FIG. 4)
And a nut box 10 which is fixed while being attached to the lower surface of each bolt hole of the edge insertion member 1. The nut box 10 shown in FIG. 4 is made by sheet metal working, and has a mounting piece 10a having a rivet hole extending on both sides.

Reference numeral 11 denotes a positioning member attached to the upper surface of the edge insertion member 1 where a bolt hole is provided. The positioning member 11 is combined with the edge insertion member 1 and the main body member 2 and fastened by the fastening member 3. When they are combined, they play a role in preventing them from moving out of the correct combination position or inclining the edge insertion member 1. This positioning member 11, as shown in FIG.
It has a shape that is bent into a letter shape, and has a bolt hole 11a for passing the fastening bolt 8 at the center of the bottom surface and rivet holes at both ends of the bottom surface. In addition, the side for reinforcement is 2
A vertical rib 11b is provided. To attach the positioning member 11, as shown in FIG. 1, a bolt hole 11a of the positioning member 11 is overlapped on the upper surface side of the bolt hole provided on the upper surface of the edge insertion member 1, and On the lower surface side, a nut box 10 containing a square nut 9 is inserted into a bolt hole 11a.
In this state, the positioning member 11 and the nut box 10 may be riveted to each other. Thereby, an effect of reinforcing the periphery of the bolt hole provided in the edge insertion member 1 so as to withstand the fastening force of the fastening member 3 is obtained.

Next, as shown in FIGS. 1 to 3, the connecting fitting C has a shape in which a metal strip is bent in a substantially U-shape, and pin holes 12a are formed near the bases of its legs. And a metal wire rod bent in a substantially U-shape, and one leg of the U-shape was loosely fitted into the pin hole 12a of the main body 12 in a locked state. And a stop pin 13. Each end b of both legs of the main body 12 is expanded in a divergent C shape. The stopper pin 13 is provided with a retaining projection 13a (FIG. 2) by caulking the tip of one leg to prevent the stopper pin 13 from falling off the main body 12. The other leg of the stop pin 13 is attached to adjacent edges a, a of the two form plates A, A to be connected, and the respective main body members of the edge reinforcement members B, B which are in a parallel state. It is intended to be inserted into the pin through holes 5 and 5 provided in a penetrating manner over the two and two. The main body 12 is provided with an inwardly protruding ridge 12b over each side of the U-shape to reinforce the main body 12 and to form two main body members 2,
The work of straddling between the two and fitting the main body 12 is facilitated.

Next, the operation of the above configuration will be described. When transporting the formwork material to the work site where the concrete casting formwork is to be constructed, the reinforcement / connectors are removed from the formwork plate A and the formwork plate A
Comrades are stacked, edge reinforcement body B Combined, connecting bracket C
Comrades are transported in bulk without being bulky by putting them together in a box. At the work site, first, in order to attach the reinforcing / connecting tool to each edge a of the form plate A, the fastening bolt 8 of the fastening member 3 is loosened and the main body member 2 is moved above the edge insertion member 1. If it is lifted by a distance, the edge a of the frame plate A can be fitted into the U-shaped groove of the edge insertion member 1 without being disturbed by the lower end of the side wall of the main body member 2. Then, when the fastening bolt 8 is tightened, the lower end of one side wall of the main body member 2 is pressed against the upper surface of the edge insertion member 1 as shown in FIG.
The lower end of the other side wall pushes the upper surface of the edge a of the form plate A,
The claw-like projections 7 are cut into the upper surface of the mold plate A. For that reason,
The edge insertion member 1 constituting the edge reinforcement B is firmly pressed and fixed to the edge a of the form plate A, and the main body member 2 is firmly united with the edge insertion member 1, Edge a of formwork plate A
The work of attaching the edge reinforcement body B to the rim is very simply and quickly completed.

Next, as shown in FIGS. 1 and 2, the two form plates A, A having the edge reinforcing members B attached to the respective edge portions a in such a manner as shown in FIGS. In order to connect with each other by using the connection metal fitting C in the abutting state, first, the adjacent edge reinforcements B, B are provided in a penetrating manner at predetermined intervals in the longitudinal direction of the main body members 2, 2. Each of the pin holes 5 has a locking pin 1
The other leg of No. 3 is inserted. At this time, the main body 12 is placed in a state of being flipped upward so as not to interfere with the main body member 2 (see FIG. 3). Next, the main body 12 is rotated downward,
The two main body members 2 are sandwiched between the two legs. However, since the interval between the two legs is made slightly smaller than the width of the two main body members 2, the two main members 2 cannot be easily sandwiched. Therefore, if the front end portion b of the two legs is expanded in a C-shape with a hammer or the like, the two legs of the main body 12 provided with the ridges 12b are elastically deformed to some extent. As a result, the two main body members 2, 2 are firmly connected to each other by connection fittings C attached to a plurality of locations in the longitudinal direction.

If the conventional wooden pier 22 is attached to one of the two form plates A to be connected, or one edge of the form plate A, For example, when it is desired to fix the main body member 2 to the horizontal
The nail may be driven into the wooden pier 22 or the like through the nail hole 6. Then, when the form plate A is used up, the both ends of the legs 12 of the main body 12 of the connecting fitting C are hit with a hammer or the like in a direction opposite to the above, so that the connecting fitting C is reinforced at both edges. It can be easily and quickly removed from the bodies B, B. Further, each edge reinforcement B can be easily removed from the form plate A by loosening the fastening bolt 8.

In each of the above embodiments, the edge insertion member 1, the main body member 2 and the like may be made of, for example, a reinforced plastic or a so-called engineering plastic other than metal. The object of the present invention is achieved even if the configuration of details is changed as appropriate, such as not limited to those shown in the drawings. In the above embodiment, the panel-like structure is a formwork plate for placing concrete, but the panel-like structure is not limited to this formwork plate.

[0015]

As is apparent from the above description, when the reinforcing / connecting device for a panel-like structure of the present invention is used, particularly, for a formwork plate for placing concrete, the following is enumerated. As described above, various excellent effects can be obtained, and as a whole, the construction cost required for constructing the mold can be significantly reduced. (A) Unlike a wooden pier conventionally used for reinforcing and connecting the edges of the formwork plate, it is made of metal and is hardly damaged. (B) Therefore, when the mold is repeatedly used, a gap is formed between the molds, and the possibility that burrs are formed on the concrete casting surface is eliminated. (C) In order to fix the reinforcing / connecting device to the edge of the form plate, it is sufficient to insert an edge insertion member into this edge and then perform the fastening operation of the fastening member. Since fixing is not performed, nailing, which requires working experience and a lot of labor, and nail removal and clearing after use can be completely eliminated. (D) The reinforcement / connector can be easily and quickly attached to / detached from the form plate by one-touch operation of the fastening means. Therefore, storage and transportation costs can be reduced accordingly. (E) Since the reinforcing / connecting device is made of metal, unlike the conventional wooden pier, it can cope with the tendency of depletion of wood resources. (F) The connection / separation work of the mold plates can be performed easily and reliably even by unskilled persons.

[Brief description of the drawings]

FIG. 1 shows an embodiment in which a reinforcing / connecting device of the present invention is applied to a case of connecting / reinforcing a concrete form plate.
It is a partial perspective view.

FIG. 2 is a cross-sectional view taken along line XX of FIG.

FIG. 3 is a perspective view of a connection fitting.

FIG. 4 is a perspective view of a positioning member, a square nut, and a nut box.

FIG. 5 is a partial perspective view showing a conventional method of reinforcing and connecting a concrete form plate.

[Explanation of symbols]

 A Form plate (panel-shaped structure) B Edge reinforcing member C Connecting bracket a Edge b End portion 1 Edge insertion member 2 Body member 3 Fastening member 4 Bolt hole 5 Pin through hole 6 Nail hole 7 Nail-shaped member Reference Signs List 8 fastening bolt 9 square nut 10 nut box 10a mounting piece 11 positioning member 11a bolt hole 11b rib 12 main body 12a pin hole 12b ridge 13 locking pin 13a retaining protrusion 20 formwork 21 plywood 22 pier 22 peg 23 nail

Claims (4)

(57) [Claims] 1. The role of reinforcing the edge a of a panel-like structure A such as a concrete casting form plate, and connecting the edges a of two panel-like structures A that have been determined to each other. An edge reinforcement body B which forms a columnar body having a length substantially equal to the length of the edge a of the panel-shaped structure A and is detachably attached to one side surface of the edge a. And the two panel-like structures A, A butted against each other.
The edge reinforcements B, B attached to the respective edges a, a
The edge reinforcement member B is substantially equal in length to the edge portion a, and has a U-shaped cross section capable of inserting the edge portion a. A substantially downward U-shaped main body member 2 having substantially the same length as the edge insertion member 1 and abutting on the upper surface thereof; and fixing the contact state and the edge insertion member. 1
And a fastening member 3 for pressing and fixing the edge a inserted into the groove in the groove, and the connecting metal member C has a shape obtained by bending a metal strip in a substantially U-shape. It has a main body 12 having a pin hole 12a formed in a penetrating shape near the base of both legs, and a shape in which a metal wire is bent in a substantially U-shape. The main body 12 is rotated to a position where it does not interfere with the main body member 2, and the other legs of the lock pin 13 are connected to each other. The edge reinforcing members B attached to the edges a of the two panel-like structures A, A butted to each other, are inserted into the pin through holes 5 provided through the body members 2, 2 of the B. Then, by rotating the main body 12, the two main body members 2 are sandwiched between both legs of the main body 12. A reinforcing / connecting device for a panel-like structure, characterized in that it is configured to have such a structure. 2. A panel-like structure reinforcing / connecting tool according to claim 1, wherein the body 12 of the connecting tool C has its leg end portions b expanded in a C-shape. 3. The fastening member 3 comprises a fastening bolt 8 and a nut 9 which are inserted through the upper surfaces of the main body member 2 and the edge insertion member 1, respectively. 3. The panel-like structure reinforcing / connecting tool according to claim 1, wherein the panel-like structure is fixed to the edge insertion member 1 by using a member. 4. 4. A positioning member (11) for preventing the edge insertion member (1) from being displaced when the edge insertion member (1) and the main body member (2) are fastened to each other by using the fastening member (3). The panel-like structure reinforcing / connecting tool according to any one of claims 1 to 3, wherein the panel-like structure is attached.