JP2011047109A - Implement for connecting form material for concrete molding, and method for assembling form for concrete molding by using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply attach a connecting implement to adjacent side plate portions, by removing restrictions on a position to attach the connecting implement to the side plate portions of adjacent form materials for concrete molding. <P>SOLUTION: This connecting implement 20a includes a clamp 30a and a hinge 40. The clamp 30a and the hinge 40 are turnably connected together by means of a pin 50. In the connecting implement 20a, the pair of strip-shaped side plate portions swelling perpendicularly to the backside of a main plate portion is provided to the backside from both side ends of the strip-shaped main plate portion with a flat surface. The form material for concrete molding, which has a side-plate thickened portion thickened inward over a predetermined width from an opened end of each of the side plate portions, is connected to each of the pair of side plate portions. The clamp 30a vertically holds the side-plate thickened portion in a sandwiching manner by a U-shaped cross-section area adjacent to a recessed loose insertion portion for loosely inserting the adjacent side-plate thickened portions of the form materials for concrete molding, which are arranged adjacently to each other. A pair of leg portions of the hinge 40 horizontally holds the adjacent side-plate thickened portions. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a concrete molding formwork connector used for assembling a concrete molding form used for placing concrete or molding a concrete secondary product, and a concrete molding form assembling method using the same. .

  A technique for forming a concrete molding form for forming a concrete by connecting a plurality of strip-shaped concrete molding form materials is known (for example, see Patent Document 1).

  The formwork material for concrete molding disclosed in Patent Document 1 has a strip-shaped main plate portion with a flat surface, and a pair of strip-like members that project from the both side ends of the main plate portion to the back surface at right angles to the main plate portion. A side plate portion and a reinforcing plate provided so as to project from the back surface of the main plate portion substantially in parallel with the pair of strip-shaped side plate portions. A side plate enlarged portion whose thickness is increased inward is added to each open end of the pair of side plate portions. The main plate portion and the side plate portion are each provided with a plurality of mounting holes at predetermined intervals in the longitudinal direction.

A plurality of the above-mentioned concrete forming mold materials are arranged so that the side plate portions of the adjacent concrete forming mold materials are in contact with each other, and the contacting side plate portions are connected by a connector.
For example, the connector disclosed in Patent Document 2 can be used.
The connector disclosed in Patent Document 2 includes (1) a one-side holding portion having a one-side holding surface having a predetermined length extending in a belt shape, and (2) a one-side holding surface within the region of the one-side holding surface. A columnar insertion shaft portion having a vertical central axis and provided near one end of the one side holding surface; and (3) one side holding surface continuous with the one side holding portion at the other end of the one side holding surface. In the region in the vicinity of the other end, there is provided the other side holding portion having the other side holding surface facing the one side holding surface in parallel with a predetermined interval.
The positions of the mounting holes of the adjacent side plate portions in the adjacent concrete molding form materials are aligned, and the insertion shaft portion of this connector is inserted into the mounting holes of the side plate portions. Then, the connecting tool is rotated around the mounting hole, and the side plate enlarged portion of the adjacent concrete forming form member is held by the one side holding surface and the other side holding surface, thereby adjoining concrete forming Formwork materials can be connected.

Japanese Patent Laid-Open No. 11-256817 JP-A-8-291623

As described above, the connector disclosed in Patent Document 2 needs to insert the insertion shaft portion into the mounting hole of the side plate portion in order to connect the adjacent concrete forming form materials. For this reason, it is necessary to align the mounting holes of the adjacent side plates in the adjacent formwork material for concrete molding, and to insert the insertion shaft portion of the connector into the mounting hole, and the work procedure is complicated. is there.
Furthermore, the concrete forming mold material can be connected only at a position in the vicinity of the mounting hole of the side plate portion, and the mounting position of the coupler is limited.

  The present invention has been made in view of the above problems, and can be easily attached to adjacent side plate portions of adjacent concrete forming mold materials, and there is no restriction on the attachment position. It is an object of the present invention to provide a coupling tool and a method for assembling a concrete molding form using the same.

In order to achieve the above object, a concrete molding formwork connector according to the present invention is
Provided with a pair of belt-shaped side plate portions projecting perpendicularly to the back surface of the main plate portion from both side ends of the flat plate-shaped main plate portion on the back surface, and each of the pair of side plate portions The main plate is a main plate facing surface that is a surface facing the back surface of the main plate portion, and a surface opposite to the main plate facing surface, the thickness being increased inward from the open end of the side plate portion over a predetermined width. For concrete molding used to connect a formwork material for concrete molding having a side plate enlarged portion formed with a side plate parallel surface, which is a surface substantially parallel to the back surface of the side plate portion and the side plate portion outer surface of the side plate portion Formwork material connecting tool,
One of the side plate enlarged portions in contact with the main plate portion opposing surface and the main plate portion opposing back surface of the adjacent side plate enlarged portions in the adjacent concrete molding form materials arranged so that the surface of the side plate portions are in contact with each other. The main plate facing surface gripping portion that grips the first plate in the first direction, the other main plate facing surface and the back surface facing the main plate portion of the adjacent side plate expanding portion, and the other side plate expanding portion in the first direction. A first member having the other main plate facing surface gripping portion gripped by
A side plate parallel surface that is in contact with one side plate parallel surface and the other side plate parallel surface of the adjacent side plate enlarged portion and sandwiches the adjacent side plate enlarged portion in a second direction orthogonal to the first direction. A second member having a clamping portion;
It is characterized by providing.

Preferably, the first member includes a slow insertion portion into which the adjacent side plate enlarged portion is gently inserted, and a connection portion that rotatably connects the second member.
The one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member are adjacent to one and the other of the pair of side surfaces of the slow insertion portion, respectively, and are adjacent to the slow insertion portion. When the first member is rotated in the first rotation direction perpendicular to the direction in which the side plate enlarged portion is loosely inserted, one side and the other of the adjacent side plate enlarged portions are held. ,
The side plate parallel surface clamping portion of the second member is configured such that the one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member grip one and the other of the adjacent side plate expanding portions, respectively. When the second member is rotated in a second rotation direction orthogonal to the first rotation direction, the adjacent side plate enlarged portion is sandwiched.
It is characterized by that.

Preferably, the first member is formed by adjoining the concrete molding when the adjacent side plate enlarged portion is loosely inserted into the loose insertion portion and the first member is rotated in the first rotation direction. One side plate back surface contact portion and the other side plate respectively contacting the back surface of the side plate portion that is one inner surface of the adjacent side plate portion and the side surface of the side plate portion that is the other inner surface of the adjacent side plate portion. A back contact portion,
The one side plate back surface abutting portion and the other side plate back surface abutting portion are arranged such that when the second member sandwiches the adjacent side plate enlarged portion in the second direction, the adjacent side plate in the second direction. Sandwich the part,
It is characterized by that.

Preferably, the one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member loosely insert the adjacent side plate enlarged portion into the loose insertion portion, and the first rotation direction in the first rotation direction. When rotating one member, each comprises a bottom surface that abuts on one side plate parallel surface of the adjacent side plate enlarged portion and a bottom surface that abuts on the other side plate parallel surface of the adjacent side plate enlarged portion,
The bottom surface of the one main plate facing surface gripping portion and the bottom surface of the other main plate facing surface gripping portion are in the second direction when the second member sandwiches the adjacent side plate enlargement portion in the second direction. Sandwiching the adjacent side plate enlargement,
It is characterized by that.

Preferably, the first member includes two connecting portions facing in opposite directions,
The second member is disposed back to back on the two connecting portions,
It is characterized by that.

Further, the method for assembling a concrete molding form according to the present invention,
Provided with a pair of belt-shaped side plate portions projecting perpendicularly to the back surface of the main plate portion from both side ends of the flat plate-shaped main plate portion on the back surface, and each of the pair of side plate portions The main plate is a main plate facing surface that is a surface facing the back surface of the main plate portion, and a surface opposite to the main plate facing surface, the thickness being increased inward from the open end of the side plate portion over a predetermined width. The formwork material for forming concrete having a side plate enlarged portion formed with a side plate parallel surface, which is a surface substantially parallel to the outer side plate surface of the side plate portion and the outer side plate portion of the side plate portion, A plurality of steps arranged side by side so as to contact;
The adjacent side plate enlargement part of the said mold material for concrete shaping | molding is loosely inserted in the loose insertion part of the said 1st member of the mold material coupling material for concrete shaping | molding of any one of Claim 2 thru | or 5. Steps,
When the adjacent side plate enlarged portion is loosely inserted into the loose insertion portion of the first member, the first member is rotated in the first rotation direction, and one of the adjacent side plate enlarged portions is And the other are respectively held by the one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member;
When one and the other of the adjacent side plate enlarged portions are respectively clamped by the one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member, the first form plate connector for the concrete molding Two members are rotated in the second rotation direction, and the adjacent side plate enlarged portion is clamped by the side plate parallel surface clamping portion of the second member;
It is characterized by providing.

  According to the present invention, it is possible to easily attach the connecting tool to the adjacent side plate portions of the adjacent concrete molding form materials, and it is possible to eliminate the restriction of the mounting position.

It is a perspective view which shows an example of the strip-shaped concrete molding form material connected and fixed with the connector concerning embodiment of this invention. It is an end view which shows an example of the AA line cross section of the formwork material for concrete molding shown in FIG. It is an end elevation which shows the other example of the AA line cross section of the formwork material for concrete shown in FIG. It is an end view which shows the cross section of the other example of the strip | belt-shaped concrete molding form material connected and fixed with the connector which concerns on embodiment of this invention. It is a figure which shows an example of the structure of the coupling tool which concerns on the 1st Embodiment of this invention. It is an end view which shows an example of the cross section of the adjacent side-plate part and side-plate enlarged part in the adjacent mold material for concrete shaping | molding. It is a figure which shows an example of the structure of the clamp which comprises the coupling tool shown in FIG. It is a figure which shows an example of the structure of the hinge which comprises the coupling tool shown in FIG. It is a figure which shows the principle which connects and fixes the side plate part which the connection tool which concerns on the 1st Embodiment of this invention adjoins. It is a figure which shows an example of the structure of the clamp concerning the 2nd Embodiment of this invention. It is a figure which shows the principle which connects and fixes the side plate part which the connection tool which concerns on the 2nd Embodiment of this invention adjoins. It is a top view which shows an example of the state by which the side-plate part adjacent to the clamp of the connector which concerns on the 2nd Embodiment of this invention was loosely inserted. It is a figure which shows an example of the structure of the coupling tool which concerns on the 3rd Embodiment of this invention. It is a figure which shows an example of the process of connecting the adjacent mold material for concrete shaping | molding using the coupling tool which concerns on the 1st Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

An example of a strip-shaped formwork material for molding concrete connected and fixed by a connector according to an embodiment of the present invention is shown in FIGS.
The concrete molding form material 10 a is composed of a main plate portion 11, a pair of side plate portions 12 and 12, and side plate enlarged portions 13 and 13.

  The main plate portion 11 is a long flat plate in which the length between the longitudinal ends 11B and 11B is set to about 10 times the length between the widthwise ends 11A and 11A. The surface 11C is formed flat. A plurality of attachment holes 14 are formed in the main plate portion 11 at the center in the width direction and at a predetermined interval in the longitudinal direction.

  The pair of side plate portions 12, 12 form a long band-like body projecting at right angles so as to face each other from the width direction end edges 11 A, 11 A of the main plate portion 11 toward the back surface 11 D side. The side plate portion surface 12A, which is the outer surface of the side plate portion 12, is formed flat.

  Further, the pair of side plate portions 12 and 12 has side plate enlarged portions 13 and 13 projecting at right angles to the side plate portion back surface 12B, which is the inner surface of the side plate portion 12, over the width Z from each open end. Is formed. The pair of side plate enlarged portions 13 and 13 is a main plate portion opposing back surface 13B which is a surface opposite to the main plate portion facing surfaces 13AA and 13AA and the main plate portion facing surfaces 13AA and 13AA which are surfaces facing the back surface 11D of the main plate portion 11. , 13B, and side plate portion parallel surfaces 13C, 13C that are substantially parallel to the side plate portion surfaces 12A, 12A.

FIG. 3 is an end view showing an example different from FIG. 2 of the cross section taken along line AA of the concrete molding form member 10a shown in FIG. 2 and 3 are denoted by the same reference numerals.
FIG. 3 is different from FIG. 2 in that the side plate enlarged portions 13 and 13 protrude from the open ends of the pair of side plate portions 12 and 12 so as to increase the thickness inward.
In this case, the main plate portion facing surface 13AB and the main plate portion facing back surface 13B are not parallel, and the main plate portion facing surface 13AB is inclined with respect to the main plate portion facing back surface 13B. Let Z be the interval between the widest portions between the main plate portion facing surface 13AB and the main plate portion facing back surface 13B.

FIG. 4 is an end view showing a cross section of another example 10b of a strip-shaped concrete molding form member connected and fixed by the connector according to the embodiment of the present invention. 2 and 4 are denoted by the same reference numerals.
4 has reinforcing plates 14 and 16 extending between the pair of side plate portions 12 and 12 from the back surface 11D of the main plate portion 11 so as to be substantially parallel to the side plate portions 12 and 12. The provided point is different from the concrete mold material 10a of FIG. Reinforcing plates 14 and 16 are formed with reinforcing plate expanding portions 15 and 17 projecting toward at least one side of the side plate portions 12 and 12 over a predetermined width from their respective open ends.

FIG. 5 shows the structure of the connector 20a according to the first embodiment of the present invention. In this embodiment, the adjacent concrete forming mold members 10a and 10a are connected using the connecting tool 20a.
The connector 20a is composed of a clamp 30a that is a first member and a hinge 40 that is a second member. As shown in FIGS. 5A and 5B, the clamp 30a and the hinge 40 are rotatably connected by a pin 50.
FIG. 5A shows the position of the hinge 40 when the adjacent concrete forming molds 10a and 10a are not connected and fixed, and FIG. 5B shows the adjacent concrete forming form. The position of the hinge 40 when the materials 10a and 10a are connected and fixed is shown.

As shown in FIG. 6, the connector 20 a fixes the adjacent side plate portions 12 and 12 and the side plate enlarged portions 13 and 13 and connects the adjacent concrete forming frame materials 10 a and 10 a.
Here, an interval between the left side plate parallel surface 13C and the right side plate parallel surface 13C is X, and an interval between the left side plate rear surface 12B and the right side plate rear surface 12B is Y. The interval between the main plate portion facing surface 13AA and the main plate portion facing back surface 13B is Z as shown in FIG.

FIG. 7 shows the structure of the clamp 30a. FIG. 7A is a perspective view when the clamp 30a is viewed obliquely from above, and FIG. 7B is a perspective view when the clamp 30a is viewed obliquely from below. FIG. 7C is a front view when the clamp 30a is viewed from the front (the direction indicated by the arrow in FIG. 7A).
The clamp 30 a includes a loose insertion portion 31, one main plate facing surface gripping portion 32, the other main plate facing surface gripping portion 33, and a hinge connection portion 34.

  The loose insertion portion 31 is a concavely recessed region extending obliquely from the front right side to the back left side. An interval r between both side surfaces of the loose insertion portion 31 is slightly wider than an interval X (see FIG. 6) between one side plate parallel surface 13C and the other side plate parallel surface 13C of the adjacent side plate portions 12 and 12. . Adjacent side plate enlarged portions 13 and 13 are loosely inserted into the loose insertion portion 31.

On the other hand, the main plate facing surface gripping portion 32 is located in front of the clamp 30a, and is an area of a U-shaped cross-section located adjacent to the upper left side of the loose insertion portion 31 when the clamp 30a is viewed from the front. The height u of the bottom surface of the U-shaped cross section is substantially the same as the distance Z (see FIG. 6) between the main plate portion facing surface 13AA and the main plate portion facing back surface 13B.
The other main plate facing surface holding portion 33 is located on the back surface of the clamp 30a, and is an area of a U-shaped cross section adjacent to the upper right side of the loose insertion portion 31 when the clamp 30a is viewed from the front. On the other hand, similarly to the main plate facing surface gripping portion 32, the height u of the bottom surface of the U-shaped region of the other main plate facing surface gripping portion 33 is the distance Z between the main plate facing surface 13AA and the main plate facing back surface 13B. Is almost the same.
By pushing the adjacent side plate enlarged portions 13 and 13 and rotating the clamp 30a clockwise until the main plate opposing back surfaces 13B and 13B come into contact with the bottom surface of the loose insertion portion 31, one main plate opposing surface holding portion 32 and the other The left and right side plate enlarged portions 13 shown in FIG. 6 can be held by the main plate facing surface holding portion 33, respectively.

  The hinge connecting portion 34 is an L-shaped region located in the upper front portion of the clamp 30a. As shown in FIG. 5, the pin 50 is inserted into the connecting holes 35, 35 on both sides of the hinge connecting portion 34, and the clamp 30a and the hinge 40 are rotatably connected.

FIG. 8 shows the structure of the hinge 40. FIG. 8A is a perspective view when the hinge 40 is viewed obliquely from above, and FIG. 8B is a perspective view when the hinge 40 is viewed obliquely from below. FIG. 8C is a front view when the hinge 40 is viewed from the front (the direction indicated by the arrow in FIG. 8A).
The hinge 40 includes a body portion 41, a pair of foot portions 42 and 42, and a side plate parallel surface clamping portion 43.

  The trunk portion 41 is rotatably mounted on the hinge coupling portion 34 of the clamp 30a by a pin 50 (see FIG. 5) inserted into the coupling hole 44. The surface of the body portion 41 facing the hinge connecting portion 34 is formed in a round shape so that it can rotate.

The pair of foot portions 42, 42 project at right angles so as to face each other from both end edges in the width direction of the body portion 41.
The side plate parallel surface clamping portion 43 is composed of a one side holding surface 43a which is a surface facing the inside of the left foot portion 42 and a other side holding surface 43b which is a surface facing the inside of the right foot portion 42. . The interval v between the one side holding surface 43a and the other side holding surface 43b is substantially the same as the interval X between the left side plate parallel surface 13C and the right side plate parallel surface 13C shown in FIG.
When the one main plate facing surface gripping portion 32 and the other main plate facing surface gripping portion 33 of the clamp 30a grip the left and right side plate enlarged portions 13 shown in FIG. When moved from the position shown in a) to the position shown in FIG. 5 (b), the one side holding surface 43a and the other side holding surface 43b become the side plate parallel surfaces 13C of the left and right side plate enlarged portions 13 shown in FIG. The side plate parallel surface holding part 43 holds the side plate enlarged parts 13 and 13 in the horizontal direction.

As described above, in the first embodiment of the present invention, as shown in FIG. 9 (A), the clamp 30a includes the side plates adjacent to each other by the one main plate facing surface gripping portion 32 and the other main plate facing surface gripping portion 33. The enlarged portions 13 are sandwiched in the vertical direction (a direction orthogonal to the main plate portion 11). The clamp 30 a prevents the connector 20 a from coming off the side plate enlarged portion 13 against a force acting in a direction orthogonal to the main plate portion 11 (direction indicated by an arrow in FIG. 9A).
Further, as shown in FIG. 9B, the hinge 40 sandwiches the adjacent side plate enlarged portions 13 and 13 in the horizontal direction (direction parallel to the main plate portion 11) by the side plate parallel surface clamping portion 43. The hinge 40 prevents the adjacent side plate portions 12 and 12 from separating against a force acting in a direction parallel to the main plate portion 11 (a direction indicated by an arrow in FIG. 9B).

FIG. 10 shows a structure of a clamp 30b according to the second embodiment of the present invention. 7 and 10 are denoted by the same reference numerals.
The connecting tool 20b (not shown) includes a clamp 30b and a hinge 40. The hinge 40 is used in common by the connector 20a and the connector 20b.
The connector 20b is different from the connector 20a according to the first embodiment in the following three points.

  First, the clamp 30b shown in FIG. 10 is different from the clamp 30a shown in FIG. 7 in that the clamp 30b has one side plate back surface contact portion 36 and the other side plate back surface contact portion 37. The one side plate back surface abutting portion 36 is a belt-like region located in front of the clamp 30b and located below the left side surface of the loose insertion portion 31 when the clamp 30b is viewed from the front. The other side plate back surface contact portion 37 is located on the back surface of the clamp 30b, and is a band-like region positioned below the right side surface of the loose insertion portion 31 when the clamp 30b is viewed from the front. When the clamp 30b is viewed from the front, the distance s between the one side plate back surface contact portion 36 and the other side plate back surface contact portion 37 is the distance between the left side plate portion back surface 12B and the right side plate surface back surface 12B shown in FIG. It is almost the same as Y.

  Secondly, when the clamp 30b is viewed from the front, the clamp 30b of FIG. 10 is located adjacent to the upper side of the left side surface of the loose insertion portion 31, and the bottom surface of the one main plate facing surface gripping portion 32 and the right side of the gentle insertion portion 31. The distance t between the bottom surface of the other main plate facing surface holding portion 33 located adjacent to the upper surface is substantially the same as the distance X between the left side plate parallel surface 13C and the right side plate parallel surface 13C shown in FIG. This is different from the clamp 30a of FIG.

Third, when the hinge 40 holds the side plate enlarged portions 13 and 13 in the horizontal direction by the side plate parallel surface holding portion 43, a force is applied in the clockwise direction indicated by an arrow in FIG. And the clamp 30b are connected by a pin 50, which is different from the connector 20a according to the first embodiment.
When the adjacent side plate enlargement portions 13 and 13 are pushed in until the main plate portion opposing back surfaces 13B and 13B come into contact with the bottom surface of the loose insertion portion 31 and the clamp 30b is rotated clockwise, the clamps are clamped as shown in FIG. The one side plate back surface contact portion 36 and the other side plate back surface contact portion 37 of 30b abut on the left and right side plate portion back surface 12B, respectively. Similarly, the bottom surface of the one main plate facing surface gripping portion 32 and the bottom surface of the other main plate facing surface gripping portion 33 of the clamp 30b are in contact with the side plate portion parallel surface 13C of the left side and right side side plate expanding portions 13, respectively.

The side plate enlarged portions 13 and 13 adjacent to the loose insertion portion 31 of the clamp 30b are loosely inserted, and the pair of leg portions 42 and 42 of the hinge 40 are adjacent to each other at the position shown in FIG. When the enlarged portions 13 and 13 are not connected, as shown in FIG. 12, the foot portions 42 and 42 of the hinge 40 and the side plate enlarged portions 13 and 13 are not parallel but form a slight angle.
For this reason, when the hinge 40 is rotated and the side plate enlarged portions 13 and 13 are held by the side plate parallel surface holding portion 43 as shown in FIG. 5B, the right foot portion 42 of the hinge 40 is indicated by an arrow. Pushed in the direction. As a result, a clockwise force is applied to the clamp 30 b via the pin 50.
The one side plate back surface contact portion 36 and the other side plate back surface contact portion 37 are pressed against the left side plate and the right side plate portion back surface 12B by the clockwise force applied to the clamp 30b. Similarly, the bottom surface of the one main plate facing surface gripping portion 32 and the bottom surface of the other main plate facing surface gripping portion 33 are pressed against the side plate parallel surfaces 13C of the left and right side plate expanding portions 13.

For this reason, in the second embodiment of the present invention, the clamp 30b moves the side plate enlarged portions 13, 13 adjacent to each other by the bottom surface of the one main plate facing surface gripping portion 32 and the bottom surface of the other main plate facing surface gripping portion 33 in the horizontal direction (main plate). The side plate portions 12 and 12 adjacent to each other are held in the horizontal direction by the one side plate back surface contact portion 36 and the other side plate back surface contact portion 37.
Therefore, the clamp 30b not only functions to prevent the coupling tool 20b from coming off the side plate enlarged portion 13 against the force acting in the direction orthogonal to the main plate portion 11 as in the clamp 30a, but also in a direction parallel to the main plate portion 11. It also has a function of preventing the adjacent side plate portions 12 and 12 from separating against the force acting in the direction (indicated by the arrow in FIG. 11B).
Therefore, the connector 20b according to the second embodiment of the present invention connects and fixes the adjacent side plate portions 12 and 12 against a force larger than the force that the connector 20a according to the first embodiment can withstand. can do.

FIG. 13 is a view showing the structure of a connector 20c according to the third embodiment of the present invention.
The connector 20c is composed of a clamp 30c and two hinges 40-1 and 40-2. The structure of the clamp 30c is the same as the structure of the clamp 30a according to the first embodiment except that there are two hinge connecting portions 34 and these hinge connecting portions 34, 34 are directed in opposite directions. is there. The structures of the hinges 40-1 and 40-2 are the same as the structure of the hinge 40 according to the first embodiment. Hinges 40-1 and 40-2 are arranged back to back in opposite directions. The clamp 30c and the hinge 40-1 and the clamp 30c and the hinge 40-2 are connected by a pin 50, as in the first embodiment.
The connector 20c according to the third embodiment of the present invention sandwiches the adjacent side plate enlarged portions 13 and 13 in the horizontal direction by two hinges 40-1 and 40-2, and shows the clamp 30c in FIG. Since the force in the clockwise direction is applied, the adjacent side plate portions 12 and 12 can be connected and fixed against a force larger than the force that the connector 20a according to the first embodiment can withstand.

  The clamps 30a to 30c and the hinge 40 can be made of, for example, resin or metal. Both the clamps 30a to 30c and the hinge 40 may be made of resin, and both the clamps 30a to 30c and the hinge 40 may be made of metal. Further, any one of the clamps 30a to 30c and the hinge 40 may be made of resin and the other may be made of metal. The clamps 30a to 30c and the hinge 40 are made of an appropriate material in accordance with the material and size of the concrete mold material. In addition, the clamps 30a to 30c and the hinge 40 are made of a material having an appropriate thickness depending on the strength of the material and the environment in which it is used.

For example, when the couplers 20a to 20c are used outdoors and the materials of the clamps 30a to 30c and the hinge 40 are resins, it is desirable that these materials are weather resistant resins. For example, glass-containing ABS resin, polycarbonate resin or the like can be used as these materials.
Moreover, when the material of the clamps 30a to 30c and the hinge 40 is a metal, the thickness of 2.3 mm to 3.2 mm can be used as the material of the clamps 30a to 30c, and the spring steel can be used as the material of the hinge 40. .

FIG. 14 shows an example of a process of connecting a plurality of concrete forming frame members 10a and 10a using the connector 20a according to the first embodiment of the present invention.
First, as shown in FIG. 14 (A), a plurality of concrete forming mold members 10a and 10a are arranged side by side so that the side plate portion surfaces 12A and 12A of adjacent concrete forming mold members 10a and 10a are in contact with each other. To do.
Next, as shown in FIG. 14B, with the pair of legs 42, 42 of the hinge 40 raised, the hinge 40 is pushed down in the direction indicated by the arrow to be adjacent to the loose insertion portion 31 of the clamp 30 a. The side plate enlarged portions 13, 13 are loosely inserted.
Next, as shown in FIG. 14C, the clamp 30a is rotated clockwise (rotation direction indicated by an arrow), and the clamp 30a is moved by the one main plate facing surface gripping portion 32 and the other main plate facing surface gripping portion 33. Each of the left side plate enlarged portion 13 and the right side plate enlarged portion 13 is held.
Then, as shown in FIG. 14D, the hinge 40 is rotated in the rotation direction indicated by the arrow, and the one side holding surface 43a and the other side holding surface 43b are respectively parallel to the side plate portion parallel surface 13C of the left side plate enlarged portion 13. And the side plate portion parallel surface 13C of the right side plate enlargement portion 13 are brought into surface contact, and the side plate enlargement portions 13 and 13 adjacent to the hinge 40 are sandwiched.

  The process in the case of connecting a plurality of concrete forming frame members 10a and 10a using the connector 20b according to the second embodiment of the present invention is substantially the same as the process in the case of using the connector 20a. However, in the case of using the connector 20b, in the step shown in FIG. 13C, the one side plate back surface contact portion 36 and the other side plate back surface contact portion 37 of the clamp 30b contact the left side plate and the right side plate portion back surface 12B, respectively. The clamp 30b is rotated clockwise until the bottom surface of the one main plate facing surface gripping portion 32 and the bottom surface of the other main plate facing surface gripping portion 33 come into contact with the side plate portion parallel surface 13C of the left and right side plate expanding portions 13 respectively. The point to rotate differs from the case where the connector 20a is used.

  Further, in the step shown in FIG. 13 (D), the hinge 40- is also connected to a plurality of concrete forming mold members 10a, 10a using the connector 20c according to the third embodiment of the present invention. Except for the point of rotating 1 and the hinge 40-2, it is the same as the process in the case of using the connector 20a.

  In each of the above-described embodiments, the case where the adjacent concrete forming mold members 10a and 10a are fixed and connected has been described. However, the adjacent concrete forming mold members 10b and 10b are also related to the above-described embodiments. It can fix and connect using connecting tool 20a-20c. Also, the adjacent concrete molding form material 10a and the concrete molding form material 10b can be fixed and coupled using the coupling tools 20a to 20c according to the above embodiments.

Furthermore, it is not limited to the concrete forming mold member 10a and the concrete forming mold member 10b, but a concrete forming die having a side plate enlarged portion whose thickness is increased inward from the open end of the side plate portion over a predetermined width. If it is a frame material, it can fix and connect using the couplers 20a-20c which concern on said each embodiment.
For example, it is of course possible to fix and connect a concrete molding form material provided with mounting holes in the side plate portion. Needless to say, the formwork material for concrete molding provided with an attachment hole that penetrates the side plate enlarged portion 13 and connects the main plate portion facing surface 13AA and the main plate portion facing back surface 13B can be fixed.

  In the second embodiment, the one side plate back surface contact portion 36 and the other side plate back surface contact portion 37 of the clamp 30b are in contact with the left and right side plate surface back surfaces 12B, respectively, and the clamp 30b is opposed to the one main plate. The example in which the bottom surface of the surface gripping portion 32 and the bottom surface of the other main plate facing surface gripping portion 33 are in contact with the side plate portion parallel surface 13C of the left side and the right side plate expanding portion 13 has been described, but the one main plate facing surface gripping portion of the clamp 30b. The bottom surface of 32 and the bottom surface of the other main plate facing surface gripping portion 33 do not contact the side plate portion parallel surface 13C of the side plate enlarged portion 13, and the clamp 30b is only one side plate back surface contact portion 36 and the other side plate back surface contact portion 37. May be in contact with the left and right side plate back surfaces 12B, respectively, and the adjacent side plate portions 12 and 12 may be sandwiched by the one side plate back surface contact portion 36 and the other side plate back surface contact portion 37. Conversely, the one side plate back surface contact portion 36 and the other side plate back surface contact portion 37 of the clamp 30b do not contact the side plate portion back surface 12B, and the clamp 30b has the bottom surface of the one main plate facing surface gripping portion 32 and the other main plate facing surface. Only the bottom surface of the gripping portion 33 abuts on the side plate portion parallel surface 13C of the left and right side plate expanding portions 13, respectively, and the side plate enlargement adjacent to the bottom surface of the one main plate facing surface gripping portion 32 and the bottom surface of the other main plate facing surface gripping portion 33. The parts 13 and 13 may be sandwiched.

  Moreover, in the said 3rd Embodiment, although the structure of the clamp 30c showed the example which is the same as the structure of the clamp 30a which concerns on 1st Embodiment except the point which has two hinge connection parts 34, clamp The structure of 30c may be the same as the structure of the clamp 30b according to the second embodiment except that there are two hinge connecting portions 34. The clamp 30c having this structure can connect and fix the adjacent side plate portions 12 and 12 against a force larger than the force that the connector 20b according to the second embodiment can withstand.

  As described above, according to the present invention, it is possible to easily attach the connecting tool to the adjacent side plate portions of the adjacent concrete molding form materials, and it is possible to eliminate the restriction of the mounting position. Moreover, according to this invention, even if it is a formwork material for concrete shaping | molding which does not have an attachment hole in a side-plate part, it can fix and connect.

  Although the embodiments of the present invention have been described above, various modifications and combinations necessary for design reasons and other factors are described in the inventions described in the claims and the specific embodiments described in the embodiments of the invention. It should be understood that it falls within the scope of the invention corresponding to the examples.

DESCRIPTION OF SYMBOLS 10a, 10b ... Formwork material for concrete molding, 11 ... Main plate part, 11C ... Main plate part surface, 11D ... Main plate part back surface, 12 ... Side plate part, 12A ... Side plate part surface, 12B ... Side plate part back surface, 13 ... Side plate Enlarged portion, 13AA, 13AB ... main plate portion facing surface, 13B ... main plate portion facing back surface, 13C ... side plate portion parallel surface, 20a, 20b, 20c ... connector, 30a, 30b, 30c ... clamp, 31 ... loose insertion portion, 32 ... one main plate facing surface gripping part, 33 ... other main plate facing surface gripping part, 34 ... hinge connection part, 35 ... connection hole, 36 ... one side plate back surface contact part, 37 ... other side plate back surface contact part, 40, 40- DESCRIPTION OF SYMBOLS 1, 40-2 ... Hinge, 41 ... Torso part, 42 ... Leg part, 43 ... Side plate parallel surface clamping part, 44 ... Connection hole, 50 ... Pin

Claims (6)

Provided with a pair of belt-shaped side plate portions projecting perpendicularly to the back surface of the main plate portion from both side ends of the flat plate-shaped main plate portion on the back surface, and each of the pair of side plate portions The main plate is a main plate facing surface that is a surface facing the back surface of the main plate portion, and a surface opposite to the main plate facing surface, the thickness being increased inward from the open end of the side plate portion over a predetermined width. For concrete molding used to connect a formwork material for concrete molding having a side plate enlarged portion formed with a side plate parallel surface, which is a surface substantially parallel to the back surface of the side plate portion and the side plate portion outer surface of the side plate portion Formwork material connecting tool,
One of the side plate enlarged portions in contact with the main plate portion opposing surface and the main plate portion opposing back surface of the adjacent side plate enlarged portions in the adjacent concrete molding form materials arranged so that the surface of the side plate portions are in contact with each other. The main plate facing surface gripping portion that grips the first plate in the first direction, the other main plate facing surface and the back surface facing the main plate portion of the adjacent side plate expanding portion, and the other side plate expanding portion in the first direction. A first member having the other main plate facing surface gripping portion gripped by
A side plate parallel surface that is in contact with one side plate parallel surface and the other side plate parallel surface of the adjacent side plate enlarged portion and sandwiches the adjacent side plate enlarged portion in a second direction orthogonal to the first direction. A second member having a clamping portion;
A formwork connecting tool for concrete molding, comprising: The first member includes a loose insertion portion into which the adjacent side plate enlarged portion is gently inserted, and a connecting portion that rotatably connects the second member,
The one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member are adjacent to one and the other of the pair of side surfaces of the slow insertion portion, respectively, and are adjacent to the slow insertion portion. When the first member is rotated in the first rotation direction perpendicular to the direction in which the side plate enlarged portion is loosely inserted, one side and the other of the adjacent side plate enlarged portions are held. ,
The side plate parallel surface clamping portion of the second member is configured such that the one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member grip one and the other of the adjacent side plate expanding portions, respectively. When the second member is rotated in a second rotation direction orthogonal to the first rotation direction, the adjacent side plate enlarged portion is sandwiched.
The formwork connecting tool for concrete molding according to claim 1. In the adjacent concrete molding form material, the first member loosely inserts the adjacent side plate enlarged portion into the loose insertion portion and rotates the first member in the first rotation direction. One side plate back surface contact portion and the other side plate back surface contact portion that contact the side plate portion back surface that is one inner surface of the adjacent side plate portion and the side plate portion back surface that is the other inner surface of the adjacent side plate portion, respectively. With
The one side plate back surface abutting portion and the other side plate back surface abutting portion are arranged such that when the second member sandwiches the adjacent side plate enlarged portion in the second direction, the adjacent side plate in the second direction. Sandwich the part,
The formwork connecting tool for concrete molding according to claim 2. The one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member loosely insert the adjacent side plate enlarged portion into the loose insertion portion, and rotate the first member in the first rotation direction. Then, each of the adjacent side plate enlarged portion comprises a bottom surface that abuts on one side plate parallel surface and a bottom surface that abuts the other side plate enlarged surface of the adjacent side plate enlarged portion,
The bottom surface of the one main plate facing surface gripping portion and the bottom surface of the other main plate facing surface gripping portion are in the second direction when the second member sandwiches the adjacent side plate enlargement portion in the second direction. Sandwiching the adjacent side plate enlargement,
The formwork connecting tool for concrete molding according to claim 2 or 3, characterized in that. The first member includes two connection portions facing in opposite directions,
The second member is disposed back to back on the two connecting portions,
The formwork connecting tool for concrete molding according to any one of claims 2 to 4, characterized in that. Provided with a pair of belt-shaped side plate portions projecting perpendicularly to the back surface of the main plate portion from both side ends of the flat plate-shaped main plate portion on the back surface, and each of the pair of side plate portions The main plate is a main plate facing surface that is a surface facing the back surface of the main plate portion, and a surface opposite to the main plate facing surface, the thickness being increased inward from the open end of the side plate portion over a predetermined width. The formwork material for forming concrete having a side plate enlarged portion formed with a side plate parallel surface, which is a surface substantially parallel to the outer side plate surface of the side plate portion and the outer side plate portion of the side plate portion, A plurality of steps arranged side by side so as to contact;
The adjacent side plate enlargement part of the said mold material for concrete shaping | molding is loosely inserted in the loose insertion part of the said 1st member of the mold material coupling material for concrete shaping | molding of any one of Claim 2 thru | or 5. Steps,
When the adjacent side plate enlarged portion is loosely inserted into the loose insertion portion of the first member, the first member is rotated in the first rotation direction, and one of the adjacent side plate enlarged portions is And the other are respectively held by the one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member;
When one and the other of the adjacent side plate enlarged portions are respectively clamped by the one main plate facing surface gripping portion and the other main plate facing surface gripping portion of the first member, the first form plate connector for the concrete molding Two members are rotated in the second rotation direction, and the adjacent side plate enlarged portion is clamped by the side plate parallel surface clamping portion of the second member;
A method for assembling a concrete molding form characterized by comprising:

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