JP3920169B2 - Concrete formwork support jig - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a concrete formwork supporting jig for supporting a concrete formwork.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as shown in FIG. 10, a concrete formwork supporting (supporting) tool is known. In the figure, reference numeral 1 denotes a plywood mold frame, and vertical and horizontal butter pipes 2, 3 are arranged in a lattice shape as a presser of the plywood mold frame 1 arranged opposite to each other. A form tie 6 (registered trademark of Okabe Co., Ltd.) with a washer is screwed to the end of the separator 4 that is installed on the end of the separator 4 via a locking tool 5 such as a P-con.
[0003]
This foam tie 6 protrudes outward from between the butter pipes 2 and 3 outside the plywood mold 1, and a three-type rib seat 7 that engages with the horizontal butter pipe 3 is attached to the foam tie 6, and a nut 8 Conclude.
[0004]
When the nut 8 of the foam tie 6 is tightened in this manner, the horizontal butterfly pipe 3 locked to the three-type rib seat 7 is pressed toward the plywood mold 1 and the vertical butterfly 3 pressed by the horizontal butterfly pipe 3 is pressed. The butterpipe 2 is pressed against the outer surface of the plywood mold 1 to carry the concrete mold.
[0005]
In the concrete mold carried by the conventional concrete mold carrier configured as described above, the area of the plywood mold 1 held and held between the locking tool 5 and the foam tie 6 is as follows. Is extremely narrow, a large number of butter pipes 2 and 3 are arranged in the vertical and horizontal directions with respect to the outer wall surface of the plywood mold frame 1, and a plurality of butter pipes 2 and 3 are brought into contact with the outer wall surface of the plywood mold frame 1. This pipe is configured so that the side pressure acting on the plywood mold 1 can be dispersed.
[0006]
Therefore, it is necessary to use a large amount of butter pipes 2 and 3, and it is necessary to spend a great deal of labor and cost for transportation and installation, as well as a vast place and labor for storage and management.
[0007]
On the other hand, as a means for reducing the number of pipes (butter pipes) to be used, a concrete tooling support tool of Japanese Utility Model Registration No. 1905398 (Japanese Utility Model Publication No. 3-29471) and A concrete mold carrier of JP-A-190127 has been proposed.
[0008]
As shown in FIG. 11 and FIG. 12, the support for the concrete placing form of utility model registration No. 1905398 (Japanese Utility Model Publication No. 3-29471) has a square flat top surface 12a with a side of 12 cm. A side circumferential surface 12b protruding perpendicularly from the periphery is formed to form a casing 13 having a U-shaped cross section, and a square seat plate 14 having a side of 30 cm is formed on the open end surface of the side circumferential surface 12b. The flange 12 extending outward from the side peripheral surface 12b of the housing 13 is formed by fixing by bonding, welding, or other appropriate means so that the center of the surface 12a coincides with the center of the seat plate 14. . Ribs 16, 16, 16, 16 are provided from the rising corner 12 c of the housing 13 to the right-angle corner 14 a of the flange 15 of the seat plate 14.
[0009]
Alternatively, the foam tie insertion hole 17 is formed at the center of the top surface 12a of the housing 13 or in the vicinity thereof. Further, a foam tie insertion hole 18 is provided at a position located in the side peripheral surface 12 b of the housing 13 of the seat plate 14 at a position corresponding to the foam tie insertion hole 17. Form tie adjuster insertion holes 19 are provided at one or a plurality of locations on the side peripheral surface 12 b of the housing 13. The size of the foam tie adjuster insertion hole 19 is such that the foam tie adjuster can be operated by inserting the form tie adjuster from the outside.
[0010]
When assembling the formwork, the foam tie 6 is applied to the desired position of the panel-shaped formwork A on the front side, and the foam tie insertion hole 17 in the top surface 12a of the housing 13 of the support 11 and the foam tie insertion hole 18 in the seat plate 14 are placed. Then, the panel-like formwork A on the front surface and the panel-like formwork B on the back side are penetrated.
[0011]
One end of the foam tie 6 protrudes from the top surface 12a of the housing 13 of the support 11, and the three-type rib seat 7 is screwed into this. By hitting the butter pipe 2 vertically between the back surface of the three-shaped rib seat 7 and the top surface 12a, inserting the foam tie adjuster from the foam tie adjuster insertion hole 19, and rotating the foam tie 6 The butterpipe 2 is sandwiched and supported by the three-type rib seat 7 and the top surface 12a of the housing 13, and the front and back panel-shaped molds A and B are supported in parallel at a predetermined interval.
[0012]
The support on the outer surface of the panel-shaped mold A among the panel-shaped molds A, B between the left and right panel-shaped molds A, B, A, B is formed on the top surface 12 a of the casing 13. A foam tie is formed so that the tie insertion hole 17 appears between the butter pipes 2 in contact with the top surface 12a, and the foam tie 6 is attached to the foam tie insertion hole 17 through the panel-shaped molds A and B on the front and back sides in the same manner as described above. The three-type rib seat 7 is screwed from one end of 6, and the butter pipe 2 is pressed against the top surface 12 a of the housing 13. Thus, the support 11 of each panel formwork located in the horizontal direction is attached in a straight line in the horizontal direction. 8 is a nut.
[0013]
As shown in FIG. 13, a concrete mold carrier of Japanese Patent Application Laid-Open No. 11-190127 is composed of a separator 4 that is connected between plywood molds 1 arranged opposite to each other, and both end sides of the separator 4. The locking device 5 is attached to the inner wall surface of the plywood mold frame 1 to regulate the interval between the plywood mold frames 1, and the locking device 5 is mounted from the outer wall surface side of the plywood mold frame 1. In a concrete formwork carrier having a foam tie 6 which is connected to both ends of the separator 4 and which fixes the plywood formwork 1 between the stopper 5 and attached to at least one end of the separator 4 A shaft foot 20 (including one formed at the end of the separator 4) that protrudes from the formed locking tool 5 and is connected to the foam tie 6 and a support device 21 that is attached to the shaft foot 20 are provided. .
[0014]
The support 21 includes a cup-shaped portion 23 having a substantially conical shape or a substantially cylindrical shape having an opening 22 through which the shaft foot 20 is inserted in the center of the upper surface, and a circular shape from the opening periphery of the cup-shaped portion 23. A collar portion 24 protruding in the circumferential direction is provided.
[0015]
In addition, the support 21 includes a depressed portion 26 formed by causing the center of the upper surface 25 of the cup-shaped portion 23 to be depressed in the opening direction of the cup-shaped portion 23 so that the foam tie 6 can be inserted. The bottom surface 26 ′ of the depressed portion 26 is disposed on the upper surface 25 of the cup-shaped portion 23 rather than the tip position of the flange portion 24 protruding from the opening periphery of the cup-shaped portion 23.
[0016]
There is a case where the plywood form 1 is carried together with the vertical or horizontal pipes 27, 28 arranged on the outer wall surface side of the plywood form 1 or the wood used as a predetermined length of wood fence, for example, the wood lugs 27 ', 28'. In the case of using the form tie 6 and using the pipes 27 and 28 in both the vertical and horizontal directions, when using the vertical or horizontal pipes 27 and 28 and the wooden timbers 27 'and 28' which are wood fences in both the vertical and horizontal directions. In the case of using vertical or horizontal ridges 27 'and 28', vertical pipes 27 and horizontal timber ridges 28 ', vertical pipes 27 or horizontal ridges 28', In the case of using the wood crest 27 'in the vertical direction and the pipe 28 in the horizontal direction, the vertical wood 27' or the horizontal pipe 28 is fixed with the foam tie 6, and the vertical or Horizontal pipe 27, 28 or Sanki 27 , 28 'and fixed to pressing the outer wall surface of the plywood formwork 1.
[0017]
Accordingly, the foam tie 6 is provided with means for pressing and fixing the vertical or horizontal pipes 27, 28 or the tree 28 ′ to the outer wall surface of the plywood formwork 1. The means for pressing and fixing the vertical or horizontal pipes 27, 28 or the wooden boards 27 ', 28' to the outer wall surface of the plywood mold 1 is formed with a screw hole into which the shaft foot 20 is screwed. The foam tie 6 having a male screw formed on the outer periphery, the nut 8 screwed onto the outer periphery of the foam tie 6, and attached to the foam tie 6, are pressed toward the plywood mold 1 by tightening the nut 8. A three-type rib seat 7 is provided for sandwiching and fixing the pipe 28 or the saw 28 'between the support tool 21 and the support tool 21.
[0018]
The flange portion 24 of the support 21 is formed to be inclined in the direction of the outer wall surface of the plywood mold 1.
[0019]
[Problems to be solved by the invention]
The concrete model casting support of the utility model registration No. 1905398 (Japanese Utility Model Publication No. 3-29471) cannot be overlapped with each other, takes up space for storage, and is difficult to carry. is there.
[0020]
Further, the coupling of the foam tie has to be done by inserting and rotating the foam tie adjuster from the foam tie adjuster insertion hole 19 formed on the side peripheral surface of the housing 13, which is a very troublesome operation.
[0021]
On the other hand, the concrete mold carrier of Japanese Patent Laid-Open No. 11-190127 is in contact with the outer wall surface of the plywood mold 1 and the holding plate 30 to contact the flange 24 of the support 21 as shown in FIG. This is only the portion of the outer peripheral line, and is so-called line contact.
[0022]
The flange portion 24 is formed in an inclined shape that widens the interval from the periphery of the opening of the cup-shaped portion 23 toward the periphery of the flange portion 24, and the periphery of the flange portion 24 of the support 21 is The flange portion 24 is elastically deformed when pressed against the plywood mold 1 and the pressing plate 30, and is configured to be able to press against these surfaces uniformly and reliably. The support 21 itself has a plywood mold. The action of pressing down the outer wall surfaces of the frame 1 and the pressing plate 30 is poor.
[0023]
In order to further press and fix the vertical pipe 28 or the tree 28 'with the butter pipe 3 pressed against the upper portion of the support 21 with the three-type rib seat 7, the height of the support 21 is the vertical pipe 28 or It must be equal to the height of Sanki 28 '. However, a flutter angle is often used for the vertical pipe 28 or the tree 28 '. The flutter angle has two types of diameters (50 mm and 60 mm), and the height is fixed. The type of support 21 could not accommodate vertical pipes 28 or trees 28 'of different diameters.
[0024]
The object of the present invention is to eliminate the inconveniences of the conventional examples described above, and as a jig for supporting a concrete mold, it is possible to overlap each other during storage and transportation, so that it is possible to save space. By securing a large contact area, the range for holding the formwork is widened, the rigidity against the concrete placement side pressure can be improved, the smoothness of the finished concrete surface can be increased, and the vertical or horizontal butter pipe is drastically reduced. An object of the present invention is to provide a concrete form supporting jig that can be used not only for butter angles of different diameters with one kind of jig.
[0025]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is, firstly, an even polygonal dish-like body having a bottom plate portion that comes into contact with the outer surface of a concrete formwork in surface contact and a side wall portion that rises from the periphery of the bottom plate portion. The upper edge of the dish-like body is provided with a horizontal hook that protrudes outwardly and contacts the horizontal butterfly material, and the bottom plate is provided with a through hole for an end of a connecting rod installed between concrete molds or an extension thereof. This is the gist.
[0026]
2ndly, it makes it a summary that the upper part of the two sides which oppose among a side wall part and a horizontal collar part was notched horizontally, and it formed in the uneven part.
[0027]
Thirdly, the gist is to form the through-hole in a shape that can vary the insertion position of the connecting rod, such as an L shape, a cross shape, or a T shape.
[0028]
According to the first aspect of the present invention, the bottom plate portion of the even-shaped polygonal plate-shaped body is in contact with the outer surface of the concrete mold frame by surface contact, and the concrete mold frame can be pressed from the outside by the entire bottom plate portion. Since it can be pressed over a wide range, the bearing pressure span can be increased, and either the vertical or horizontal butter pipe can be drastically reduced.
[0029]
And since it contacts a concrete formwork in a wide area, it can improve rigidity with respect to the concrete placing side pressure and can also increase the smoothness of the surface of the finished concrete. Moreover, since the whole is an even polygonal dish-like body, stacking is also easy.
[0030]
In addition, since the bottom plate of the dish-shaped body is provided with a through-hole in the end of the connecting rod installed between concrete molds or its extension, the foam tie can be inserted into this depression from the outside without troublesome work. It can be connected directly or indirectly to the connecting rod.
[0031]
According to the second aspect of the present invention, in addition to the above action, the upper portions of the two opposite sides of the side wall portion and the horizontal flange portion are horizontally cut out to form a stepped portion. By selecting either a stepped part or a horizontal saddle part and supporting a butterpipe on this, the height of the butterpipe can be changed and flexibly handled on the spot for vertical piers or pipes of different diameters. it can.
[0032]
According to the third aspect of the present invention, in addition to the above-described function, the through hole is formed in a shape that can change the insertion position of the connecting rod, such as an L shape, a cross shape, and a T shape. When the formwork is a pillar formwork, and when it is necessary to place the connecting rod in the vicinity of the corner in order to form the corners of the column at right angles, Since the insertion position can be selected as appropriate, the connecting rod can be inserted in the vicinity of the corner of the column.
[0033]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a concrete form supporting jig of the present invention, FIG. 2 is a perspective view showing the same use state, FIG. 3 is a front view showing the same use state, and FIG. 4 shows the same use state. It is a vertical side view.
[0034]
The concrete form support jig of the present invention is made of metal and has a bottom plate part 32 that comes into contact with the outer surface of the plywood mold form 1 that is a concrete form form by surface contact and a side wall part 33 that rises from the periphery of the bottom plate part 32. The plate-shaped body 31 is a polygonal (rectangular in the illustrated example), and is provided with a horizontal flange 35 that protrudes outward from the upper edge of the side wall 33 and contacts a horizontal butterfly pipe 3 such as a horizontal butterfly material. As the metal material, steel, stainless steel, aluminum alloy, or the like can be adopted. Note that the shape of the dish-like body 31 may be, for example, an octagon as long as it is an even polygon, and is not limited to a quadrangular shape as illustrated.
[0035]
Of the side wall portion 33 and the horizontal flange portion 35, the upper portions of the two opposite sides are horizontally cut out to form the stepped portion 34. The length in the side direction of the notch generally corresponds to the diameter of two horizontal butter pipes 3 corresponding to the use. Further, the height of the side wall portion 33 is made equal to, for example, 60 mm, which is the diameter of the flutter angle as the vertical pipe 28 or pier 28 'pressed and fixed to the outer surface of the plywood mold frame 1, and the bottom plate portion 32 of the stepped portion 34 is used. The depth of the notch was set to 10 mm so that the height of the notch was equal to 50 mm, which is the diameter of another type of butter angle.
[0036]
The outer peripheral edge of the horizontal flange 35 is formed as a winding rib 36.
[0037]
As will be described later, the bottom plate portion 32 is provided with a through hole 37 of an end portion of the separator 4 or an extension portion thereof as a connecting rod to be laid between the plywood mold frames 1 which are concrete mold frames. The through-hole 37 is formed in a shape that can freely change the insertion position of the connecting rod in the XY direction, such as an L shape, a cross shape, or a T shape, as shown in FIG. The extension portion can be penetrated at a position other than the center position of the bottom plate portion 32.
[0038]
Next, the usage will be described with reference to FIGS. A plywood board is formed by connecting a separator 4 between the plywood molds 1, which is a concrete mold, and the inner wall of the plywood mold 1 attached to both ends of the separator 4 to regulate the interval between the plywood molds 1. A known washer, a P-conc, and a locking tool 5 such as a sharp P-con are provided to keep the interval between the molds 1 constant. Further, a shaft foot 40 is provided so as to protrude from one end of the locking tool 5 and to be connected to a foam tie 6 which is a fixing tool described later. The shaft foot 40 may be inseparable from the locking member 5 or may be separable by screwing.
[0039]
As shown in FIGS. 3 and 4, the dish-like body 31 is directly attached to the shaft foot 40 or the separator 4, and is arranged on the outer surface of the plywood mold frame 1 at an appropriate interval. Abuts against the outer surface of the plywood mold 1.
[0040]
In this case, when a flutter angle having a diameter of 60 mm is arranged on the outer surface of the plywood form 1 as a vertical pipe 28 or a pier 28 ', the side on which the stepped portion 34 due to the notch is not formed is The arrangement direction of the dish-like body 31 is determined so as to be positioned in the vertical direction. As a result, the horizontal butter pipe 3 abuts on the upper surface of the horizontal flange 35 and is disposed at a height of 60 mm from the bottom plate portion 32 of the dish-like body 31. Can be pressed simultaneously.
[0041]
Moreover, when this plywood formwork 1 is a pillar formwork as shown in FIG. 9, the edge part of the formwork panel combined with a rectangle becomes a right angle, but the shape of this corner part is not deformed by the side pressure of the cast concrete. In order to do so, it is desirable to arrange the separator 4 as close to the corner as possible. In such a case, as shown in FIGS. 7 and 8, the position of the separator 4 to be inserted into the through hole 37 may be moved in the XY direction within the through hole 37 to select a position close to the corner. Thereby, the deformation | transformation of the plywood formwork 1 can be prevented and the concrete leak by deformation | transformation can be prevented.
[0042]
On the other hand, when a flutter angle having a diameter of 50 mm is arranged on the outer surface of the plywood form 1 as a vertical pipe 28 or a pier 28 ', a stepped portion 34 is formed by a notch as shown in FIG. The arrangement direction of the dish-like body 31 is determined so that the side on the side is positioned in the vertical direction. This is the position where the dish-like body 31 is rotated 90 degrees with respect to the position shown in FIG.
[0043]
As a result, the horizontal butterfly pipe 3 abuts on the inside of the stepped portion 34 and is arranged at a height of 50 mm from the bottom plate portion 32 of the dish-like body 31. You can hold it at the same time. In this state, the width of the stepped portion 34 is formed to be equal to the width of the two horizontal butterpipes 3, so that the two butterpipes are housed in the stepped portion 34 in a stable state.
[0044]
Further, even in the case where the number of the butter pipes 3 is one, if they are stored in the uneven portion 34, they can be stored well. In this way, one type of plate-like body 31 can cope with a plurality of butter angles of different diameters as the vertical pipe 28 or the pier 28 '. The present invention can also be applied to the case where the vertical pipe 28 or the crosspiece 28 'has a polygonal shape such as a hexagonal cross section.
[0045]
In this way, after the dish-like body 31 is mounted on the shaft foot 40, the foam tie 6 as a fixture is further connected to the rear end of the shaft foot 40 coming out from the through hole 37 of the bottom plate portion 32. At that time, the leg flange 6 a of the foam tie 6 presses the bottom plate portion 32.
[0046]
The foam tie 6, a three-type rib seat 7 that is a pressing fitting that is attached to the foam tie 6 and pressed against the horizontal butter pipe 3 to sandwich the butter pipe 3 with the dish-like body 31, and the foam The whole is fastened with a nut 8 screwed onto the outer periphery of the tie 6.
[0047]
The three-type rib seat 7 attached to the foam tie 6 has a notch arc-shaped locking portion formed slightly larger than the outer periphery of the horizontal butterpipe 3, and is screwed onto the male screw formed on the outer periphery of the foam tie 6. The horizontal butter pipe 3 is fixed by being pressed to the plywood mold 1 side by tightening the combined nut 8.
[0048]
【The invention's effect】
As described above, the concrete form support jig of the present invention can be superposed on each other when storing and transporting as a jig for supporting the concrete formwork, so that it is possible to save space. By securing a large contact area, the range for pressing the formwork becomes wider, the rigidity against the concrete placement side pressure can be improved, and the smoothness of the surface of the finished concrete can be increased. As well as drastically reducing the flutter angle, different types of flutter angles can be handled with a single jig. Further, it is possible to flexibly cope with the case where it is necessary to arrange a separator in the vicinity of the end of the formwork panel such as a column formwork.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a concrete form support jig of the present invention.
FIG. 2 is a perspective view of a use state showing an embodiment of a concrete form support jig of the present invention.
FIG. 3 is a front view of a use state showing an embodiment of the concrete form support jig of the present invention.
FIG. 4 is a longitudinal side view of the concrete mold support jig of the present invention in an in-use state showing an embodiment of the present invention.
FIG. 5 is a vertical side view showing another embodiment of the concrete form supporting jig according to the present invention.
FIG. 6 is a front view of a through hole portion showing an embodiment of a concrete form support jig of the present invention.
FIG. 7 is a cross-sectional plan view showing a use state of the concrete form support jig of the present invention to a column form form showing an embodiment.
FIG. 8 is a plan view showing a use state of the concrete form supporting jig of the present invention to a column form showing an embodiment.
FIG. 9 is a perspective view of a column mold.
FIG. 10 is an explanatory view of a formwork support work.
FIG. 11 is a plan view showing a first conventional example.
FIG. 12 is a longitudinal front view showing a first conventional example.
FIG. 13 is a longitudinal front view showing a second conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Plywood formwork 2, 3 ... Butter pipe 4 ... Separator 5 ... Locking tool 6 ... Form tie 6a ... Leg flange 7 ... Three-shaped rib seat 8 ... Nut 11 ... Support tool 12a ... Top surface 12b ... Side peripheral surface 12c ... Corner 13 ... Case 14 ... Seat plate 14a ... Right-angle corner 15 ... Flange part 16 ... Ribs 17, 18 ... Form tie insertion hole 19 ... Form tie adjuster insertion hole 20 ... Axle foot 21 ... Support tool 22 ... Open Hole 23 ... Cup-like part 24 ... Bridge part 25 ... Upper surface 26 ... Depressed part 26 '... Bottom surface 27, 28 ... Pipe 27', 28 '... Wood 29 ... Nut 30 ... Presser plate 31 ... Dish-like body 32 ... Bottom plate part 33 ... Side wall 34 ... Stepped portion 35 ... Horizontal flange 36 ... Winding rib 37 ... Through hole 40 ... Shaft foot

Claims (3)

An even polygonal dish-like body having a bottom plate portion that abuts on the outer surface of the concrete mold by surface contact and a side wall portion that rises from the periphery of the bottom plate portion. A concrete mold supporting jig, comprising: a horizontal flange portion that contacts the material; and a bottom plate portion provided with an end portion of a connecting rod to be laid between the concrete mold frames or a through hole of an extension thereof. The concrete form support jig according to claim 1, wherein, of the side wall portion and the horizontal flange portion, the upper portions of two opposing sides are horizontally cut out to form a stepped portion. The concrete form support jig according to claim 1, wherein the through hole is formed in a shape such as an L-shape, a cross shape, or a T-shape so that the insertion position of the connecting rod can be varied in the XY directions.

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