JP2000129915A - Panel for concrete form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel for concrete form, which is strong enough to support the weight of concrete to assemble a concrete form and has a long useful life enough to be able to be used semi-permanently. SOLUTION: This panel comprises a rectangular sheathing board 1 made of thermoplastic resin, a frame stile means attached to the peripheral of the sheathing board made of thermoplastic resin and comprising a pair of upper and lower angle members 21 and 22 and a pair of right and left angle members 23 and 24, and a plurality of the middle stile means provided between the upper and lower angle members 21 and 22, and each of the angle members 21, 22, 23 and 24 includes a first side fixed to the thermoplastic sheathing board and a second side extending in the direction orthogonal to the sheathing board, and the first and second sides have screw holes formed at a proper interval.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete formwork panel, and more particularly to a concrete formwork panel used for placing concrete in concrete houses, condominiums, building constructions, and various other civil construction fields. It is about.

[0002]

TECHNICAL FIELD OF THE INVENTION

2. Description of the Related Art Conventionally, a panel for a concrete formwork has a plywood of a predetermined size, a pier attached to a peripheral portion and a central portion of the plywood, a hole formed at an appropriate place in the plywood, and a separator protruding from a reinforcing bar side. , And the separator was used by fixing it with metal fittings after sandwiching the separator with two vertical ends from both ends vertically and horizontally assembled.

[0003]

However, such a panel for formwork is not always preferred from the viewpoint of effective use of resources because it has a problem that the number of times of use is limited and the strength is reduced during repeated use. It was not something.

Therefore, it has been proposed to use a thermoplastic resin-type frame material instead of plywood as a material for the weir plate. However, if wood is still used for the crosspiece, it is more durable than the thermoplastic resin frame material. Given the short lifespan and the longevity of the article determined at the weakest point, it has not been any solution for practical use.

SUMMARY OF THE INVENTION An object of the present invention is to provide a panel for a concrete formwork which has a high strength to support the weight of concrete in assembling the concrete formwork and which can be used semi-permanently and has a long service life.

[0006]

In order to achieve the above-mentioned object, a concrete formwork panel according to the present invention comprises, as a means thereof, a rectangular thermoplastic resin dam plate having predetermined vertical and horizontal dimensions; A pair of upper and lower and right and left angle members attached to the periphery of a plastic resin dam plate; and a plurality of rows of middle cross members provided between the upper and lower angle members. The member includes a first side fixed to the thermoplastic weir plate and a second side extending in a direction perpendicular to the weir plate. The first side and the second side are screw holes formed at appropriate intervals. The gist is to have.

The middle crossing means includes three rows of support pipes, and a plurality of pairs of pipe mounting means formed on the pair of upper and lower angle members, wherein the pair of upper and lower angle members are a first angle member and a second angle member. An angle member is included, and each pair of pipe mounting means rises from the second side of the first angle member and rises from the second side of the second angle member and is inserted into the support pipe. Including a short columnar projection to be inserted, the total length of the support pipe is the first
It is preferable that the distance between the second side of the angle member and the free end of the short columnar protrusion is shorter than the distance between the long columnar protrusion and each tip of the short columnar protrusion.

The pair of right and left angle members includes a third angle member and a fourth angle member, and the first sides of the third angle member and the fourth angle member are formed with a peacon insertion hole at appropriate intervals. It is desirable to have been.

The present invention also provides a clip for joining a panel for a concrete formwork.
The clip is substantially a gourd-shaped clip comprising a round bar as a whole and having a constriction near the center and having a loop-shaped operation portion on one side of the constriction and an engaging portion opened on the other side of the constriction. Further comprising: a plane defined by the operating portion and a plane defined by the engagement portion intersect at an obtuse angle with each other, and the engagement portion extends from the constriction in a long portion and a short portion extending in the longitudinal direction and the long portion. A second side of two angle members including a first end and a second side, each of which includes an engagement end bent in a direction substantially perpendicular to the longitudinal direction from the shank, is formed on each of the two angle members by back-to-back contact with each other. Align the set screw holes, insert the engaging ends into the aligned screw holes, and the constriction is slightly narrower than the total thickness of each of the two second sides abutting back to back with each other. The point is to have an interval.

[0010] Furthermore, a countersunk screw is formed in the first side of each angle member and a hole formed by piercing an arbitrary periphery of a thermoplastic resin dam plate in alignment with the screw hole and the screw hole. It is preferable to insert and crimp to fix.

The present invention also provides a panel joining device for a concrete panel formwork, which comprises fixing an angle member around a substantially rectangular thermoplastic resin dam plate. A concrete board provided on the reinforcing member side of the concrete form panel and screwed to one end of a separator extending from the reinforcing member, and a pecon insertion hole formed in the thick side of the concrete form panel and formed in the panel. The gist of the present invention is to include a fixing fitting which can be screwed to the PC via the same.

Further, the picone is made of a thermosetting resin and has a truncated cone-shaped cap having an inner space opened at the bottom and the head, a male member buried in the inner space and projecting from the bottom and threaded, and a head. It is desirable to include a metal fitting made of a female member which is exposed and sharpened internally, and the male member is inserted through the PECON insertion hole and protrudes to the opposite side.

[0013] Further, the fixing bracket has an elongated main body having a nut portion on the head side and at least one lock hole in a tail portion, and a buckle portion loosely attached to the center of the main body portion in an approximately cross shape. And a lock member inserted into the lock hole.

Preferably, the buckle has a double bridge shape formed by a pair of arcs.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a so-called tricone sheet used for a concrete formwork panel of the present invention, and 1 is a thermoplastic resin such as a polyolefin resin, a vinyl chloride resin, a vinylidene chloride resin. Is a so-called tricon sheet made of a thermoplastic resin made of a resin plate material formed by pressing a glass fiber mat into a glass fiber mat. The width is 600 mm, the height is 1800 mm, and the thickness is 4 m.
Those having a size of from m to 12 mm are commonly used.

In FIG. 2, the thermoplastic weir plate 1 has two pairs of angle members around its periphery, that is, a first angle member 21, a second angle member 22, and a third angle member 2.
The third and fourth angle members 24 are attached to form a frame bar. The first angle member 21 and the second angle member 22 are attached to upper and lower sides of the weir plate, and the angle members 23 and 24 are attached to left and right sides of the weir plate 1. And both are L-shaped steel of 25 mm x 25 mm.

That is, the first angle member 21 extends in a direction perpendicular to the first side 211 fixed to the upper side of the weir plate 1 and the weir plate 1 as shown in FIGS. It consists of the second side 212. Further, both ends of the first side in the longitudinal direction form oblique sides, and are provided for convenience of connection between a third angle member 23 and a fourth angle member 24 described later.

Similarly, the second angle member 22 is also connected to the weir plate 1
And a second side 222 extending in a direction perpendicular to the weir plate 1. And the first
Both ends in the longitudinal direction of the side 221 also form oblique sides, which are also provided for convenience of connection with the third angle member 23 and the fourth angle member 24 as described later.

Further, the first sides 211 and 221 of the angle member 21 and the second angle member 22 have screw holes 214 formed at intervals of 50 mm.
On the second sides 212 and 222, three columnar projections stand opposite to each other.

That is, the second side 2 of the first angle member 21
12, a long columnar projection 32 stands up, and from the second side 222 of the second angle member 22, a short columnar projection 3 is formed.
Three are standing. The long columnar projection 32 has a total height of about 2
On the other hand, the short columnar projection 33 has a total height of about 10 m.
m.

The first angle member 21 and the second angle member 22 are applied to the dam plate 1 above and below the dam plate, and holes are made in the dam plate 1 at locations opposed to the screw holes 234, and the screw holes 234 are formed. The countersunk screw 5 is inserted into the drilled hole and caulked, and the third angle member 23 and the fourth angle member 24 are similarly drilled in the weir plate 1 at the locations facing the screw holes 234 on the left and right sides of the weir plate. Insert the countersunk screw 5 into the screw holes 234, 24
4 and inserted into a hole formed in the weir plate 1 and caulked and fixed.

Similarly to the case of the first angle member 21 and the second angle member 22, the third angle member 23 and the fourth angle member 24 are fixed to the left and right sides of the dam plate.
31, 241 and the second extending in a direction perpendicular to the weir plate 1
The sides 232 and 242 are formed.

Since both ends of each first side are formed on the oblique side, and are used for connecting the first angle member 21 and the second angle member 22, the respective angles are attached without any gap. I have. Also, as shown in FIGS. 4, 5 and 6, each of the two sides of the third angle member 23 and the fourth angle member 24 has the screw holes 234 and 244 approximately 50 m long.
They are formed at m intervals.

Then, as shown in FIG.
And 33, three rows of support pipes 31 are inserted to form a middle crosspiece. The total length of the support pipe 31 is equal to the inner surface of the second side 212 of the angle member 21 and the short columnar projection 3.
3 is set to be shorter than the distance between the front ends of the long columnar projections 32 and longer than the distance between the front ends of the short columnar projections 33.

Therefore, when attaching the middle crosspiece, the support pipe 31 is inserted into the upper long columnar projection 32 and then is brought into contact with the second side 212 of the angle member 21, and the lower short columnar projection 33 is If the support pipe 31 is inserted through the short columnar projection and is placed vertically on the angle member 22, the upright state is maintained. The support pipe 31 has a total length of about 1,795.
mm and the inner diameter is approximately 25.4 mm.

As shown in FIG. 4A, the third angle member 23 has a first side 231 and a second side 232. The first side 231 has a peacon insertion hole 233.
Are drilled at an interval of 225 mm from a position of 225 mm from above and below. In addition, screw holes 234 are formed in the first side 231 at intervals of 50 mm. Further, as shown in FIG. 4B, screw holes 235 are similarly formed at the second side 232 at intervals of 50 mm. Although not shown, the fourth angle member has the same structure.

The panel assembled as described above is shown in FIG.
This panel has a structure as shown in the figure, but a plurality of panels are prepared and connected as described below.

That is, FIG. 6 shows that the third panel 23 and the fourth panel 24 are properly positioned with respect to each other by abutting the two panels and then brought into contact with each other to insert the clip 4 into the screw holes 234 and 234 respectively. And fix it. Note that the angle member 22 is omitted in FIG. 6 to facilitate understanding.

Further, as shown in FIG. 7, the clip 4 is a substantially gourd-shaped metal member made of a round bar, and has a constriction 40 near the center. And the constriction 40
On one side, a loop-shaped operation portion 41 and an engagement portion 42 opened on the other side of the constriction 40 are provided. The plane defined by the operation section 41 and the plane defined by the engagement section extend so as to intersect each other at an obtuse angle.

The engaging portion 42 has a long portion 421 and a short portion 422 which expand in the longitudinal direction from the constriction, and an engaging end bent from the long portion 421 in a direction substantially orthogonal to the longitudinal direction. A portion 423 is provided.

The method of using the clip 4 is as follows. That is, the operating portion 41 of the clip is moved in a state where the second sides of the third angle member 23 and the fourth angle member 24 fixed to the two weir plates 1 abut against each other to align the screw holes. Stand up and insert the engaging end 423 into the aligned screw hole.

Then, the operating portion 41 is rotated toward the second sides of the third angle member 23 and the fourth angle member 24 with the engagement end portion 423 as a fulcrum. Hit two sides. Although the gap between the constrictions 40 is slightly smaller than the total thickness of the second sides of the two angle members, the gap is expanded by further applying force for the elasticity of the metal, so that two gaps are formed therebetween. By press-fitting the two sides, the two weir plates and the two angle members are temporarily fixed. In this state, the other screw holes 234 and 24
The aluminum countersunk screw 5 is inserted into 4 and caulked and fixed.

In the following, in addition to the connection between the panels 1, the fixing of the panels to the bar arrangement using the Pecon 26 as shown in FIGS. 8 and 9 will be described. In FIG. 8, the pecon 26 is arranged on the reinforcing bar side of the dam board 1 of the panel, and the fixing bracket 5 is prepared on the opposite side. An angle member 23 is provided between the weir plate 1 and the mounting member 5 and is fixed to the weir plate, but is omitted in FIG. 8 for simplification of description. Then, holes formed at positions corresponding to the peacon insertion holes 233 formed on the first side 231 of the angle member 23 are connected via 10. Before that, the structure of the peacon 26 will be described below.

FIG. 9 is a perspective view of the peacon 26. The peacon 26 is made of a thermosetting resin and has a truncated conical cap 261 having an inner space opened at the bottom and the head. A male member 262 buried in the space and projecting from the bottom and having a thread and a female member 263 which is exposed at the head and is internally threaded and is internally threaded, wherein the male member 262 is angled with the hole 10 of the weir plate 1. The member 21 is inserted through the peacon insertion hole 233 and has a thick end on the opposite side (not shown).
Project in the direction of.

In this state, the Picon 26 is screwed into a separator (not shown) extending from the reinforcing bar side, and the male member 262 of the Picon 26 is also screwed into the fixture 5. The fixing bracket 5 has an elongated main body 50 and a buckle 51.
The main body 50 comprises a nut portion 501 on the head side and a lock portion 502 on the tail. The nut portion 501 has an internal thread (not shown), and the lock portion 502 has a lock. Holes 50'2 are formed in two places.

The central portion of the main body 50 is formed narrow. Further, a hole that penetrates the narrow central portion of the main body 50 is formed in the connecting portion 512 to which the pair of arc-shaped portions 511 are connected, and the whole is formed of the pair of arc-shaped portions 511.
To form a double bridge, and is loosely attached to the center of the main body in an approximately cross shape.

Then, in order to support the panel according to the present invention facing the arrangement of the reinforcing bars, the horizontal end is cut into the arc-shaped portion 511.
The male member 262 of the peacon is inserted through the hole 10 of the weir plate 1 and the peacon insertion hole 233 of the angle member while rotating the peacon 26 in contact with the nut portion 50.
When screwed into 1 and tightened, the lock member 52 is driven into one of the lock holes 50'2 and locked.

Thereafter, the vertical end to the horizontal end fixed as described above is fixed by a known method, and the concrete formwork panel of the present invention is installed on the reinforcing bars.

[0039]

The concrete formwork panel according to the present invention is formed by fixing an L-shaped steel angle member around a substantially rectangular thermoplastic resin weir plate to form a frame beam comprising a pair of upper, lower, left and right angle members. Since the middle crosspiece is arranged between the angle members, the whole is composed of long-life members, so it is realistic to provide a concrete formwork panel that can be used semi-permanently with sufficient strength to support the weight of concrete It became.

Further, a long columnar projection is formed in a horizontal portion of the upper and lower angle members, and a short columnar projection is formed. As a middle crosspiece, three rows of support pipes are inserted through the long and short columnar projections. Therefore, it can be mounted on the site, which has the effect of reducing the number of processes in the factory.

Further, since a pair of right and left angle members are formed with a peacon insertion hole, the peacon is screwed into a separator extended from the reinforcing bar side, a part of which is inserted therethrough, and a fixing bracket is used on the thick side. It is possible to fix.

Further, the present invention provides a substantially gourd-shaped clip as a tool for connecting a plurality of concrete form panels, which is formed entirely of a round bar and has a shape which intersects at an obtuse angle. A plurality of concrete form panels in which the members abut against each other can be temporarily fixed easily using the engaging portion and the operating portion of the clip, so that joining with screws at the site is extremely easy.

Further, in the present invention, on the reinforcing member side of the weir plate, there is provided a picone screwed into the separator, and on the thick end side, there is provided a fixing fitting which can be screwed into the pecon extending through the pecon insertion hole of the weir plate. The provision of concrete formwork panels has become extremely easy.

Further, since the above-mentioned peacon has a truncated conical cap made of a thermosetting resin, it can be easily removed from the concrete after the concrete is cast, and the holes left in the concrete are filled with a filler. It can be easily modified and the appearance of the concrete casting is very good.

The fixing fitting provided on the side of the end includes an elongated main body part and a buckle part loosely attached to the main body part in a cross shape. Can be inserted, so that the installation work of the bold on the site is simple.

[Brief description of the drawings]

FIG. 1 is a perspective view of a dam plate made of a thermoplastic resin as a material used for manufacturing a panel for a concrete formwork.

FIG. 2 is a perspective view of a semi-finished panel product in which an angle member is fixed around the weir plate.

FIGS. 3A and 3B are explanatory views of an angle member fixed to the upper and lower sides of the weir plate; FIG. 3A is a front view of an angle member fixed to an upper side of the weir plate; (C) is a plan view of (A), and (D) is a side view of (B).

FIG. 4 is an explanatory view of an angle member fixed to the right and left sides of the weir plate, (a) is a front view of the angle member fixed to the right side, (b) is a side view thereof, and (c) is It is a top view.

FIG. 5 is a perspective view of a finished product of the concrete formwork panel of the present invention.

FIG. 6 is a perspective view in which two panels are prepared, and right and left angle members are abutted back to back and temporarily fixed with clips.

FIG. 7 is a perspective view showing details of the clip.

FIG. 8 is a perspective view showing a state in which a picon is prepared on a reinforcing bar arrangement side of a weir plate and a fixing bracket for fixing by fixing a part of the picon extending to the thick side through a pecon insertion hole is fixed. FIG.

FIG. 9 is a perspective view showing details of the Picon.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Weir board 21 1st angle member 22 2nd angle member 23 3rd angle member 24 4th angle member 32 Long columnar projection 33 Short columnar projection 4 Clip 5 Fixing fixture 26 Picon

Claims (9)

[Claims] 1. A rectangular thermoplastic resin damping plate having predetermined vertical and horizontal dimensions, and frame beam means attached to the periphery of the thermoplastic resin damping plate and comprising a pair of upper and lower and right and left angle members. A plurality of rows of middle rails provided between the pair of upper and lower angle members, each angle member extending in a direction perpendicular to the first side fixed to the thermoplastic weir plate and the weir plate. At least two concrete formwork panels, including a second side having a screw hole formed at an appropriate interval between the first side and the second side. 2. The middle crossing means includes three rows of support pipes and a plurality of pairs of pipe mounting means formed on the pair of upper and lower angle members, wherein the pair of upper and lower angle members is a first angle member and a second angle member. An angle member is included, and each pair of pipe mounting means rises from the second side of the first angle member and rises from the second side of the second angle member and is inserted into the support pipe. A length of the support pipe is shorter than a distance between a second side of the first angle member and a free end of the short columnar protrusion. Each of the long columnar protrusion and the short columnar protrusion is included. The concrete formwork panel according to claim 1, wherein the distance is longer than a distance between the tips. 3. The pair of right and left angle members includes a third angle member and a fourth angle member, and the first side of the third angle member and the fourth angle member have a peacon insertion hole formed at appropriate intervals. The panel for a concrete formwork according to claim 2, wherein the panel is formed. 4. A loop-shaped operating portion which is formed entirely of a round bar, has a constriction near the center, and has one side of the constriction;
The clip further includes a substantially gourd-shaped clip including an engagement portion opened on the other side of the constriction, wherein a plane defined by the operation portion and a plane defined by the engagement portion intersect each other at an obtuse angle, and the engagement portion includes Two long portions including a long portion and a short portion that expand in the longitudinal direction from the constriction, and an engagement end portion that is bent from the long portion in a direction substantially perpendicular to the longitudinal direction, each having a first side and a second side. The second side of the angle member is abutted back-to-back to align the screw holes formed in each, and the engaging end is inserted into the aligned screw hole, and the constriction is reduced to the two pieces. A panel joining clip for a concrete formwork, wherein the interval is slightly smaller than the total thickness of each second side abutted back to back. 5. A countersunk screw formed in the first side of each angle member and formed in a hole formed by piercing an arbitrary periphery of a thermoplastic resin weir plate aligned with the screw hole and the screw hole. 5. The clip for connecting a panel for a concrete formwork according to claim 4, wherein the clip is fixed by caulking. 6. A concrete form panel formed by fixing an angle member around a substantially rectangular thermoplastic resin weir plate and provided on a reinforcing bar side and screwed to one end of a separator extending from the reinforcing bar. A panel fixing device for a concrete formwork, comprising: a peacon, and a fixing member provided on a thick side of the concrete formwork panel and capable of being screwed to the peacon through a pecon insertion hole formed in the panel. . 7. A frustoconical cap made of a thermosetting resin and having an inner space opened at a bottom and a head, a male member buried in the inner space and projecting from the bottom and threaded, and a head. 7. The concrete formwork panel fixing according to claim 6, further comprising a metal fitting formed of a female member which has been exposed and is internally threaded, and wherein said male member is inserted through said peacon insertion hole and protrudes to the opposite side. apparatus. 8. An elongated main body having a nut portion on a head side and at least one lock hole in a tail portion, and a buckle portion loosely attached to a center of the main body portion substantially in a cross shape. 8. The concrete formwork panel fixing device according to claim 7, further comprising a lock member inserted into the lock hole. 9. The concrete formwork panel fixing device according to claim 8, wherein the buckle member has a double bridge shape formed by a pair of arcs.