JPH05263536A - Bearing device for concrete form - Google Patents

Abstract

PURPOSE:To make it possible to control the length of a bearing device through both fine and rough control and to simplify the demolition and assembly thereof. CONSTITUTION:A spiral pipe 51 is fitted to a lower post 58, and both of them are interlocked with an interlocking means. After that, an interlocking rod 52 is inserted into a slot 60 and, at the same time, it is mounted on a rotary disc 53, an upper post 61 is mounted on the interlocking rod 52. When the rotary disc 53 is rotated under such a state, the interlocking rod 52 is moved upward along the slot 60, the upper post 61 is gradually moved upward without rotating, and a bearing device 50 is controlled to the required length. When the bearing device 50 is dismantled, the bearing device 50 is dismantled into the lower post 58, spiral pipe 64, interlocking means 54, interlocking rod 52, rotary disc 53, upper post 61 and etc., and handling such as transportation, etc., can be easily performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support device for supporting a concrete formwork used for manufacturing a building such as a wall, a beam or a floor made of a material such as concrete from the ground or a foundation.

[0002]

2. Description of the Related Art Generally, when constructing or constructing a concrete wall or the like, a pair of molds matching the side shape of the concrete wall or the like are arranged to face each other, and concrete is placed between the concrete molds. Done by By the way, when pouring concrete, it is necessary to support the concrete form, and conventionally, various supporting devices for the concrete form have been used.

For example, a supporting device for concrete formwork as shown in FIG. 17 is generally used. This supporting device is composed of an upper pipe 76 and a lower pipe 77. Both the upper pipe 76 and the lower pipe 77 have a cylindrical shape and are slidably fitted to each other. Also,
Both have pin holes 78 formed at equal intervals. In using this support device, the length of the entire length is adjusted to an appropriate length by pulling out or retracting the upper pipe 76, and the pin hole 78 of the upper pipe 76 and the pin hole 78 of the lower pipe 77 are matched. It is fixed by inserting a pin 79 into.

However, this support device has a drawback in that the distance for length adjustment is determined by the distance between the holes, and fine adjustment cannot be performed. Therefore, as a supporting device whose length can be finely adjusted, for example, Japanese Patent Publication No. 1-54
There is one disclosed in Japanese Patent No. 503. As shown in FIG. 18, this supporting device includes a lower pipe 80,
The threaded rod 81 welded to the lower pipe 80 and the threaded rod 81
The upper pipe 85 has arm members 83 and 84 which are inserted into the holes of the mold 82 and which are screwed into the screw rod 81 to support the upper pipe 85.
Then, the handle 8 fixed to the lower pipe 80 with one hand
7 is forbidden to rotate the lower pipe 80, and the other hand is used to grasp the handle 88 of the adjusting member 86 to rotate the adjusting member 86, whereby the upper pipe 85 is moved in the vertical direction and the arm member 83, The position of 84 is adjusted in the vertical direction, and the form 82 is adjusted to a desired height.

[0005]

However, as shown in FIG.
In the supporting device for a concrete formwork shown in (1), with the upper pipe 76 being lifted, the pin holes 78 are aligned with each other, and the pins 79 are inserted into the pin holes 78 to fix them. Therefore, the position adjustment of the upper pipe 76 and the lower pipe 77 becomes extremely heavy labor, and it is difficult to set the support device for the concrete formwork.

The conventional supporting device disclosed in Japanese Patent Publication No. 1-54503 has the following drawbacks. The above-mentioned supporting device is configured so that the upper pipe 85 moves in the vertical direction by rotating the adjusting member 86 screwed to the screw rod 81 in the conventional supporting device, so that fine adjustment is performed. However, on the contrary, since the length cannot be adjusted significantly, there is a disadvantage that the length adjustment takes time.

Further, in the above conventional supporting device, the lower pipe 80 and the screw rod 81 are integrated by welding,
It cannot be broken down any further. For this reason, each of the supporting devices is very heavy, and heavy labor is required to carry or use such a heavy lower pipe 80. Therefore, in the supporting device for concrete formwork, it was a subject to obtain a supporting device which can be easily disassembled and assembled.

The conventional supporting device is a dedicated device for supporting the mold, and has no other purpose than that.
Since such a supporting device must be used in a large amount, it is inevitable to secure a large space as a material storage space at a construction site. Therefore, in order to reduce the total number of materials at the construction site, there has been a problem of how other materials, for example, materials for concrete formwork can be diverted to support devices for concrete formwork. ..

Furthermore, since the frame 82 is supported by the arm members 83 and 84 projecting from the upper pipe 85, the weight of the frame 82 is applied to the arm members and the supporting device itself falls down. As a countermeasure against this, as shown in FIG. 18, a hole 89 is formed in the frame 82, and the supporting device is supported by the hole 89. However, such a special form 8
Regardless of when using 2, some support is needed to prevent the support device from tipping over if it is not. Therefore, without providing the arm members 83 and 84,
It is conceivable to change the design to a structure in which the mold is supported by the upper end surface of the upper pipe 85 of the supporting device. However, in adjusting the length of the supporting device, when the adjusting member 86 is rotated, the upper pipe is also rotated, so that when the upper end surface of the upper pipe comes into contact with the mold, the mold is displaced or the supporting device is moved. There is a possibility that the support device installation work cannot be performed accurately due to a shift. Therefore, even if the arm members 83 and 84 are removed from the supporting device of FIG. 18, it is a problem to provide the supporting device itself with the function of stopping the rotation of the upper pipe.

Therefore, an object of the present invention is to solve the above-mentioned problems, has a structure in which disassembling and assembling are easy and does not require heavy work, and the number of parts at the construction site is reduced. It is an object of the present invention to provide a support device for a prefabricated concrete formwork, which simplifies construction work and can easily perform both large adjustment and fine adjustment of length.

[0011]

In order to achieve the above object, the present invention is configured as follows. That is,
This invention includes a lower column, a spiral tube fitted to the lower column,
Locking means for locking the spiral tube at a predetermined position with respect to the lower support, locking rod capable of moving in the longitudinal direction of the spiral tube along an elongated hole formed in the spiral tube, the locking rod Concrete having a turntable screwed onto the spiral tube, which can be set at a predetermined position in the up-down direction with respect to the spiral tube, and an upper strut fitted to the spiral tube and placed on the support rod. A support device for a formwork.

In this concrete form supporting device, an upper supporting base is locked to the upper supporting pillar so that the length thereof can be adjusted, or a lower supporting base is locked to the lower supporting pillar so that the length can be adjusted. Alternatively, both the upper support and the lower support may be provided.

Further, in this supporting device for concrete formwork, a pedestal having a step portion formed on one surface and a concave portion formed on the other surface is provided, and the lower end portion of the upper column is attached to the step portion. It is also possible to fit and engage the locking rod with the recess. This pedestal can also be applied to the case where the upper column or the lower column having a short length is lengthened. In that case, for example, a cylindrical portion that fits into the upper support column is provided in the upper support base, a plurality of holes aligned in the length direction are formed in the cylindrical portion, and a step portion is formed on one surface. A pedestal having a recess formed on the other surface thereof may be provided, the upper end of the upper column may be fitted to the step, and the pin inserted into one of the holes may be engaged with the recess. ..

Alternatively, a cylindrical portion fitted to the lower support is provided on the lower support, a plurality of holes aligned in the length direction are formed in the cylindrical portion, and a step is formed on one surface and the other is formed. It is only necessary to provide a pedestal having a concave portion formed on its surface, fit the lower end portion of the lower column to the step portion, and engage the pin inserted into one of the holes with the concave portion. Further, in order to facilitate the rotating operation of the turntable, a foldable operation rod may be provided on the turntable.

As the lower support and the upper support,
It is possible to use a patch member composed of a tubular triangular support used for a concrete formwork.

[0016]

Since the supporting device for the concrete formwork according to the present invention is constructed as described above, it operates as follows. That is, the assembly of the supporting device is performed as follows. First, the spiral tube is fitted to the lower support, and both are locked with a locking pin or the like so as to have an appropriate length. that time,
The spiral tube and the lower support are locked so that the entire length of the support device in the assembled state is approximately equal to the distance between the floor or ground and the concrete formwork. This allows a certain length adjustment of the support device for the concrete formwork. Then, a lifting rod, that is, a locking rod is inserted into the long hole of the spiral tube and is placed on a turntable screwed to the spiral tube, and an upper support is formed on the locking rod to form a locking means. Place it on the table. When the turntable is rotated in this state, the turntable moves upward while rotating on the spiral tube, and accordingly, the locking rod moves upward along the long hole to raise the pedestal. Therefore, the upper support pillar on the pedestal can move upward without contacting with the lower surface of the concrete formwork, and the installation of the supporting device can be completed.

Since the supporting device for the concrete formwork can be installed by the above-mentioned operation, the concrete formwork and the supporting device will not be displaced when the upper column comes into contact with the formwork. In this way, the length of the supporting device can be finely adjusted, and the length of the supporting device can be adjusted to an appropriate length. In particular, the weight of the members in the support device for the concrete formwork can be reduced, so that the installation work of the support device for the concrete formwork can be performed very easily and reliably.

The disassembling of the supporting device for the concrete formwork can be easily performed in the reverse order of the above assembling order. As a result, the supporting device for this concrete formwork
It is disassembled into a lower support, a spiral tube, a locking means such as a pedestal, a locking rod, a turntable, and an upper support. Further, this support device for concrete formwork can be easily disassembled into each component, and the weight of each component is reduced, so that it can be easily transported.

Further, by using a supporting member such as a cylindrical triangular support used for a concrete formwork as the lower support and the upper support, the parts can be made common and the number of parts at the construction site can be reduced. , Can simplify the work.

In addition, the upper support is provided with an upper support base,
If the lower support is provided with the lower support or both of them are provided, the upper support and the lower support having a short length can be used long.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a supporting device for concrete formwork according to the present invention will be described below with reference to the drawings. First, a concrete formwork to which the supporting device according to the present invention can be applied will be described. 1 and 2 are exploded perspective views showing components of a concrete formwork.

FIG. 1 shows a rod body 1 such as a long rectangular rod before assembly, panels 8 and 9 made of plywood made of softwood, a pressing member 10, and a pad member 15. The rod 1 is formed with a screw hole 4 which is a fitting hole extending from the front surface 2 to the back surface 3. A convex portion 5 is formed on the front surface 2 and is formed in a step shape. The end faces of the pair of panels 8 and 9 are in contact with the side faces 6 and 7. The pressing member 10 has a cylindrical portion 11 such as a cylindrical portion.
And a flange portion 12 formed integrally with the cylinder portion 11
It consists of A male screw 13 is provided on the outer peripheral surface of the tubular portion 11.
And a female screw 14 is formed on the inner peripheral surface.
For example, the abutting member 15 can be made of a so-called triangular flap material, which is a tubular triangular column having a triangular sectional shape, and at least one surface thereof is formed as a flat surface 16. A groove 17 is formed in the center of the flat surface 16, and the width of the groove 17 is substantially the same as the width of the convex portion 5 of the rod body 1, and the convex portion 5 fits into the groove 17 of the contact member 15. It is formed to fit. Also,
A plurality of holes 18 are formed at predetermined intervals on the top of the contact member 15 on the side facing the groove 17. Patch member 15
The flat surface 16 cooperates with the flange portion 12 of the pressing member 10 to clamp the panels 8 and 9.

FIG. 2 shows the tightening member 19, the tie rod (for example, foam tie) 28, and the claw member 33. The tightening member 19 includes a stopper 20 such as a triangular prism, a screw body 22 such as a threaded cylinder with a flange 21, a seat member 23 placed on the top of the pad member 15 which is a triangular flap material,
It consists of a tightening nut 24. Since the width of the stopper 20 is slightly smaller than the width of the groove 17 of the contact member 15, the stopper 2
0 can be inserted from the groove 17. The screw body 22 and the stopper 20 are assembled by inserting the screw body 22 into the hole formed in the stopper 20. At this time, the flange 21 serves as a stopper. The male screw portion 25 of the screw body 22 can be inserted into the hole 26 of the seat member 23. The angle of the V groove 27 of the seat member 23 is formed to be equal to the apex angle of the contact member 15. The tightening nut 24 is screwed onto the male screw portion 25 of the screw body 22.

The tie rod 28 has a male screw 29 engraved at its tip, and a flange 30 is formed at the end of the male screw 29. A hex head 31 is formed at the opposite end of the tie rod 28. Hole 26 of seat member 23
Is a size that allows the hexagonal head 31 to pass through. The flange 30 of the tie rod 28 has a size that can be inserted into a through hole 32 formed in the center of the flange 21.

The claw member 33 has a pair of claws 34 and 35. Since the distance between the claws 34 and 35 is equal to the width of the groove 17 of the contact member 15 which is a triangular flap, the claw 34 is formed. The convex portion 5 of the rod 1 is fitted between the claw 35 and the claw 35. Also,
Since the width of the claw member 33 is smaller than the width of the groove 17 of the contact member 15, the claw member 33 can be inserted from the groove 17. A screw hole 36 is formed in the claw member 33, and the tie rod 2
The male screw 29 of 8 is screwed.

FIG. 3 is a perspective view showing a part of an assembled state of the concrete formwork. FIG. 4 is a cross-sectional view showing a state cut along a horizontal plane including a chain line XX in FIG. A procedure for assembling a concrete formwork will be described with reference to these drawings.

First, the cylindrical portion 11 of the pressing member 10 is fully screwed into the screw hole 4 of the rod body 1 to the base of the flange portion 12, and the rod body 1 and the pressing member 10 are integrally fixed.
On the other hand, the stopper 20 and the tubular screw body 22 are integrally assembled, and the assembled product is assembled into the groove 17 of the contact member 15.
Then, the screw portion 25 of the screw body 22 is inserted into the hole 18 of the contact member 15. Next, the tie rod 28 is inserted from the screw portion 25 side of the screw body 22, the tip of the tie rod 28 is projected from the groove 17 of the contact member 15, and the claw member 33 is screwed into the tip of the tie rod 28. At that time, tie rod 28
Is screwed in such a way that the tip of the blade protrudes from the claw member 33 or does not protrude.

Further, the tie rod 28 is pulled into the contact member 15 so that the claw member 33 does not hit the groove 17, the tie rod 28 is rotated, and the tips of the claws 34 and 35 are brought into contact with the edges of the groove 17. .. The end faces of the pair of panels 8 and 9 are brought into contact with the respective side faces 6 and 7 of the rod body 1 integrated with the holding member 10, and the groove 17 of the abutting member 15 and the claws 34 and 35 of the claw member 33. The convex portion 5 of the rod body 1 is fitted in between. In this state, the tie rod 28 is rotated while being pressed against the edge of the groove 17, and the tie rod 28 is screwed into the female screw 14 of the tubular portion 11 of the pressing member 10. At this time, the convex portion 5 functions as a detent for the claw member 33. Furthermore, the tie rod 28
When the tip of the claw member protrudes from the pressing member 10, the claw member 33 comes into contact with the flange 30 and cannot be screwed in any more, and at the same time, the claws 34 and 35 of the claw member 33 are strongly pressed.
The edge of the groove 17 is pressed. In this state, the pair of panels 8 and 9 are clamped and tightened by the flange portion 12 of the pressing member 10 and the flat surface 16 of the contact member 15. And
Through the above procedure, a panel row 38 is formed by sequentially connecting panels using the required number of rods 1.

The above-mentioned panel rows 38 are erected on both sides with a space corresponding to the thickness of the wall to be constructed or constructed (or, depending on the case, they may be provided horizontally). At that time,
As shown in, the flange portion 12 is arranged so as to be on the inner side. That is, the flange portions 12 are arranged so as to face each other. A separator 39 is provided between the pair of panel rows 38.
And both ends of the separator 39 are connected to the tips of the tie rods 28 protruding from the rear surface of the flange portion 12 via cones 40.

Next, a reinforcing triangular flap material is attached as a reinforcing member 37 which is orthogonal to the contact member 15 holding the panels 8 and 9 and is in contact with the contact members 15 across the plurality of contact members 15. In this example, the pad member 15 is also used as the reinforcing triangular flap material, but the triangular flap material does not have the groove 17 in the flat surface 16, and the plurality of holes 1 are formed on the top and the flat surface.
You may use the triangular flap material which formed 8 at equal intervals.

The attachment of the reinforcing member 37 will be described. First, since the tie rod 28 and the cylindrical screw body 22 project from the top of the abutting member 15 in the state where the panels 8 and 9 are continuously arranged, these tie rods are first. 28 and the screw body 22 are inserted into the holes 18 of the reinforcing member 37. Then, the seat member 23 is fitted into the screw body 22, and the seat member 23 is placed on the top of the reinforcing member 37, and the screw portion 25
Tighten by tightening the tightening nut 24. As a result, it is possible to prevent the panel row 38 from being crushed due to the internal pressure when pouring concrete. Through the steps described above, the concrete pouring formwork is assembled.

When the concrete formwork is assembled in this way, concrete is placed. Concrete is poured into the space between the panel rows 38 arranged to face each other. After pouring the concrete, the concrete is hardened and the concrete formwork is disassembled after curing. That is, the mold rotates the tie rod 28 in the opposite direction to move the tie rod 2
It is removed by removing 8 from the cone 40. At that time, the cone 40 and the separator 39 are left in the concrete, and are visible from the surface of the concrete on which the cone 40 is placed. However, since the circular concave portion is formed by the flange 12 on the concrete surface around the cone 40, if necessary, by filling the concave portion with putty or the like, the cone 40 is covered and at the same time the concrete surface is covered. It can be a flat surface.

When concrete is placed in the concrete formwork up to an appropriate height and then the concrete formwork is mounted again above the concrete formwork, the tie rod 28 is removed from the cone 40 when the wall heights are successively added. At this time, the fixing between the contact member 15 and the reinforcing member 37 is not released. Then, with the formwork and the reinforcing member 37 in the integrated state, the entire formwork is moved upward, and the lower tie rod 28 is screwed onto the upper cone 40 left in the concrete, and further upward. Tie rod 28 through cone 40 to separator 39
You can connect to. Therefore, when the concrete pouring is repeated, the formwork assembling work can be performed very easily and efficiently. Of course, with respect to the movement of the concrete pouring form in the left-right direction, that is, the horizontal direction, depending on the case, downward movement,
The concrete form can be moved by repeating the same process.

In this concrete form, the panel can be partially removed by removing the pressing member 10 from the rod 1. Therefore, the panel can be partially removed even in the work of pulling out on the wall surface in the work such as electric wiring work before placing concrete, piping work of gas or water, etc., so this kind of work is extremely easy. You will be able to do it. In this embodiment, the pressing member 1
Although the flange member 12 of 0 has a circular shape, for example, if the flange member 12 has a width smaller than the width of the rod 1 and a length longer than the width of the rod 1, the pressing member 10 is rotated 90 degrees. The panel can be partially removed by simply doing so, making this type of construction even easier.

Also, in this embodiment, an example of using a triangular flap material as the abutting member 15 is shown, but the triangular flap material has a cross-section of a triangle such as an equilateral triangle and therefore is excellent in balance strength. Needless to say, since it is easy to collect, there is an advantage that there is no waste in terms of securing a storage space at a construction site or the like, but a cylindrical member having a flat surface 16 or a columnar member in some cases may be used. Any shape may be used, for example, a semicylindrical shape or a quadrangular shape. Of course, the contact member 15 does not need to be a regular equilateral triangle in cross section.

Since this concrete formwork is constructed as described above, it is possible to use a plate material having a small area for the panels 8 and 9. For example, plywood made from wood such as coniferous wood for panels 8 and 9, waste wood from lauan plywood, iron plates,
Various board materials such as concrete boards can be used. Here, an example of manufacturing plywood from a conifer is shown in FIG.
3 and FIG. 14, and FIG. 15 and FIG.
13 is a perspective view showing an example of a state before bonding of a veneer made from softwood, FIG. 14 is a side view of a plywood made from the veneer shown in FIG. 13, and FIG. 15 is a veneer made from softwood 16 is a perspective view showing another example of the state before adhesion of FIG.
FIG. 16 is a side view of a plywood manufactured from the single plate of FIG. 15.

FIG. 13 and FIG. 14 illustrate an example of manufacturing a plywood made from softwood. When conifers are cut in the circumferential direction by rotary lace like lauan wood, due to the nature of wood, cracks and the like occur in the wood grain, making it impossible to manufacture thin plate materials. Therefore, a large number of thin plate-shaped single plates 8V are manufactured by cutting a softwood in the longitudinal direction with a saw or the like. Therefore,
The single veneer 8V has a narrow width. As shown in the drawing, these veneers 8V are arranged in a plurality (4 in the figure) with the grain directions alternately orthogonal to each other, and the veneers 8V and the veneers 8 are arranged.
A sheet 49 made of paper, synthetic resin, cloth or the like having an adhesive agent such as glue applied on both sides is interposed between the sheet V and the V.
An assembly with 9 is made. Then, this assembly is pressed by a press or the like to manufacture a plywood 8P of softwood.

As described above, in the above-mentioned plywood 8P made of softwood, since the sheet 49 is interposed between the veneers 8V, even if the veneers 8V have many knots, or the veneers 8V have only one node. Even if only one sheet has a property of being easily broken, each veneer 8V can be sufficiently fixed by the sheet 49, and can sufficiently function as the plywood 8P, that is, the panels 8 and 9 which is a plate material of the concrete formwork. It is a thing.

When the single plates 8V are successively stacked one by one as described above, the area of the plywood 8P becomes narrow. Then, as shown in FIG. 15 and FIG.
End face 9E of each other is brought into contact with each other, a plurality of single plates 9V are arranged on one surface to form a composite single plate 9V, and paper or synthetic resin in which an adhesive agent such as glue is applied on both sides between the composite single plates 9V. , A sheet 49 of cloth or the like is interposed, and an assembly of the composite single plate 9V and the sheet 49 is produced. Then, this assembly is pressed by a press or the like to manufacture a plywood 9P of softwood. Therefore, if the plywood 9P is manufactured in this manner, the panels 8 and 9 having a large area can be obtained.

Although the case of constructing a wall has been described above, the case of constructing a main body such as a floor or a beam from concrete will be described next. FIG. 5: is sectional drawing which shows an example of the concrete formwork assembled in order to form a floor and a beam. This concrete formwork includes a concrete formwork 41 forming a side wall of a beam, a concrete formwork 42 forming a bottom surface of the beam, and a concrete formwork 43 forming a floor.
Is assembled. The structure of the concrete formwork itself is the same as that described with reference to FIGS. 1, 2, 3, and 4, and a duplicate description will be omitted. Although not shown in FIG. 5, a reinforcing member 37 made of a triangular flap may be supported by a pillar from the ground or floor if necessary.

FIG. 6 is an enlarged view of the area Y in FIG. The contact member 15 of the concrete form 41 forming the side surface of the beam and the contact member 15 of the concrete form 43 forming the floor are connected by a joint 44. 7 is a front view of the joint 44, and FIG. 8 is a sectional view taken along line ZZ in FIG. The joint 44 is composed of two triangular prisms having a triangular cross section, that is, cylindrical triangular column parts 45 and 46. That is, the cylindrical triangular support parts 45, 46
In both, the ends are cut at an angle of 45 degrees, for example, and the cut ends are abutted and welded.
Further, the joint 44 is formed with holes 47 and 48 at positions corresponding to the holes of the abutting member 15. By inserting bolts into these holes and tightening them with nuts, two holes are inserted through the joint 44. The contact members 15 can be connected to each other at right angles. At this time, the seat member 23 may be placed and connected to the ridge of the contact member 15, that is, the top.

In the case of the contact member 15 shown in FIG. 1,
There are holes at the top that match the holes 47, 48 of the joint 44, but not at the flat surface 16. Therefore, it is preferable to use a small plate having a hole formed therein, which is welded to the groove 17 of the contact member 15. The joint 44 shown in FIG.
Although it is for connecting the abutting members 15 to each other at a right angle, the angle of cutting the end portions of the cylindrical triangular support portions 45, 46 is not 45 degrees, but is cut at an appropriate angle.
The contact members 15 can be connected to each other at an arbitrary angle.

Next, an embodiment of the supporting device for concrete formwork according to the present invention will be described. FIG. 9 shows an embodiment of a supporting device for concrete formwork according to the present invention, and is a cross-sectional view showing a state in which a lower strut and an upper strut are vertically cut. 10 to 12 are views showing components of this supporting device, and FIG. 10 is a spiral tube of this supporting device,
FIG. 11 is a perspective view showing the locking rod and the turntable, FIG. 11 is a plan view showing a pedestal that constitutes the locking means, and FIG. 12 is a sectional view taken along line AA of FIG. The pedestal 54 has a triangular shape as shown in FIG.
Has a triangular step portion 55 on which the end face of the contact member 15 is placed on the upper surface, and semicircular notches 56 and 57 as concave portions at the base and the vertex of the triangle, respectively on the bottom surface. ..

This support device 50 includes a lower support column 58, a spiral tube 51 fitted to the lower support column 58, locking means 59 for locking the spiral tube 51 to the lower support column 58 at a predetermined position with respect to the lower support column 58, and a spiral. A lifting rod or locking rod 52, which can move in the length direction of the spiral tube 51 along a long hole 60 formed in the tube 51, and a locking rod 52 are placed and set at a predetermined position in the vertical direction with respect to the spiral tube 51. It has a turntable 53 screwed into the spiral tube 51, and an upper support column 61 fitted on the spiral tube 51 and placed on the locking rod 52.

As the lower support column 58, the contact member 15 composed of the cylindrical triangular support column shown in FIG. 1 is used. A lower support base 62 is attached to the lower end of the lower support column 58 so that its vertical position can be adjusted. That is, the pedestal 54 is fitted to the lower end of the abutment member 15 which is the lower support 58,
The tubular portion 63 of the lower support base 62 is fitted into the base 4. Since the cylindrical portion 63 is formed with a plurality of holes 65, the pin 70 is inserted into one of the holes 65 formed in the cylindrical portion 63, and the pin 70 is inserted into the semicircular cutout of the pedestal 54. 56,57
May be engaged with. The thickness of the tubular portion 63 is such that it does not rattle when it is fitted into the contact member 15.

The spiral tube 51 has a male screw 6 formed on the outer peripheral surface.
4, and a plurality of holes 69 are formed at both ends. The spiral tube 51 is considerably shorter than the conventional threaded rod 81 and is lightweight because it is formed in a tubular shape. The spiral tube 51 is adjustably locked to the lower support column 58 at a predetermined vertical position by a locking means 59. That is, after fitting the step portion 55 of the pedestal 54 to the upper end surface of the lower support column 58, the spiral tube 51 is fitted to the lower support column 58, and the optimum hole 69 is formed in consideration of the length of the entire supporting device. Insert the pin 70. At this time, the pin 70 is the semicircular cutout 5 of the pedestal 54.
Engage with 6,57. Then, the engagement of the pin 70 with the semicircular cutouts 56, 57 serves to prevent the spiral tube 51 from rotating with respect to the lower support column 58. Here, the locking means 59 includes the hole 69 formed in the spiral tube 51 and the hole 6
9 and a semi-circular cutout 56, 57 with which the pin 70 is engaged. The thickness of the spiral tube 51 is such that the spiral tube 51 does not rattle against the lower support column 58 when the spiral tube 51 is fitted to the lower support column 58.

The turntable 53 has a pair of folding type operation rods 66 on its outer peripheral surface. A female screw is formed on the inner peripheral surface of the turntable 53, and the turntable 53 has a spiral tube 51.
It is screwed into the male screw 64 of. A pair of elongated holes 60 extending in the vertical direction are formed in the spiral tube 51 so as to face each other. The lifting rod or locking rod 52 is inserted into the long hole 60 formed in the spiral tube 51, and is mounted on the turntable 53. On the other hand, the lower end of the upper support column 61 is fitted to the stepped portion 55 of the pedestal 54, and is placed on the locking rod 52 together with the pedestal 54. The locking rod 52 is engaged with the semicircular cutouts 56 and 57 of the pedestal 54. The thickness of the spiral tube 51 is such that the spiral tube 51 does not rattle against the upper support column 61 when the spiral tube 51 is fitted to the upper support column 61.

At the upper end of the upper column 61, an upper support 67 is provided.
The tubular portion 68 of is fitted and attached so that its length can be adjusted. The upper support 67 has a plurality of holes 71 arranged in the tubular portion 68 at equal intervals in the length direction. The step portion 55 of the pedestal 54 is fitted to the upper end of the upper support column 61, and the tubular portion 68 of the upper support base 67 is fitted from the upper end side of the upper support column 61, among the holes 71 formed in the tubular portion 68. Select one of them and insert the pin 70. At this time, the pin 70 is attached to the pedestal 54.
Engage with the semi-circular cutouts 56, 57 of. Further, the thickness of the tubular portion 68 of the upper support 67 is such that the tubular portion 68 is
The thickness is such that the upper support 67 does not rattle with respect to the upper support column 61 when it is fitted into.

Next, an example of a length adjusting method of the supporting device for concrete formwork will be described. First, the rough adjustment is performed by adjusting the locking position between the lower support column 58 and the spiral tube 51. Alternatively, it may be performed by adjusting the locking position between the lower support column 58 and the lower support base 62, or by adjusting the locking position between the upper support column 61 and the upper support base 67. By this rough adjustment, the total length of the supporting device 50 can be adjusted so as to be close to a predetermined length.

After the rough adjustment of the support device is finished, a fine adjustment is carried out. Regarding the fine adjustment, when the overall length of the supporting device 50 is slightly short due to the rough adjustment, the operating rod 66 is held by hand to rotate the turntable 53. Along with this, the turntable 53 moves upward on the spiral tube 51. When the rotary disk 53 moves upward while rotating, the locking rod 52 mounted on the rotary disk 53 is guided by the long hole 60 of the spiral tube 51 and moves upward. When the locking rod 52 moves upward, the pedestal 54 engaged with the locking rod 52 via the semicircular cutouts 56 and 57 moves upward without rotating and is placed on the pedestal 54. The upper support column 61 that is being moved also moves upward without rotating. In this way, when the turntable 53 is rotated, the upper support column 61 moves straight upward without rotating, the upper end surface of the upper support base 67 abuts against the molds 42 and 43, and the support device 50 The length of is adjusted to the optimum length. Needless to say, when the support device 50 is slightly long due to rough adjustment, the turntable 53 may be rotated in the opposite direction.

The supporting device 50 can be easily disassembled by removing the pin 70 and the locking rod 52. When the supporting device 50 is disassembled, the supporting device 50 is
The abutment member 15 as the lower strut 58 and the upper strut 61,
The lower support base 62, the upper support base 67, the spiral tube 51, the turntable 53, the locking rod 52, the receiving base 54, the pin 70 and the like are disassembled. Therefore, it can be transported by light labor.
Further, since the assembly is extremely simple, it can be used even by an amateur. Further, since the padding member 15 used for the concrete formwork is diverted as the lower strut 58 and the upper strut 61, the padding member 15 is used for multiple purposes, so that the parts of the temporary construction material can be shared. It is possible to reduce the construction cost.
Further, since the pad member 15 is used as a material having a shape that can be easily collected at a construction site, there is an advantage that a space such as a material storage space can be small.

In the above embodiment, the lower support 58 and the lower support 62 are engaged, the lower support 58 and the spiral pipe 51 are engaged, the spiral pipe 51 and the upper support 61 are engaged, and the upper support 6 is used.
The pedestal 54 is used for the engagement between 1 and the upper support 67, but the top and the flat surface 16 each have a plurality of holes as a contact member (the flat surface 16 does not have the groove 17). When the cylindrical triangular support is used, the pedestal 54 may not be used. In that case, the pins 70 may be inserted into both the holes formed in the tubular portions 63, 68 or the spiral tube 51 and the holes of the triangular flap material to lock the pins 70.
However, when the pedestal 54 is used, it is not necessary to apply an unreasonable force to the pin 70 and the locking rod 52 due to the contact area.

If the lower column 58 and the upper column 61 are sufficiently long, it is not necessary to use the lower support 62 and the upper support 67. When the lengths of the lower support column 58 and the upper support column 61 are short, the upper support column 61 may be added to the upper end side of the upper support column 61 via the spiral tube 51.

[0054]

Since the supporting device for the concrete formwork according to the present invention is constructed as described above, it has the following effects. That is, this support device for concrete formwork allows both fine adjustment and large adjustment to be performed easily and without manually moving a heavy load member, so that it can be easily, quickly and reliably extended. Can be adjusted.

Further, since the supporting device for the concrete formwork is constructed so that the locking rod can be moved in the longitudinal direction of the spiral tube along the long hole formed in the spiral tube,
When the turntable is rotated, the upper column mounted on the locking rod does not rotate and rises. Therefore, when the upper end surface of the upper pillar comes into contact with the concrete formwork, the concrete formwork does not shift or the support device does not shift, so that the installation work of the support device can be performed accurately and quickly. it can.

Since the supporting device for the concrete formwork has a structure that can be easily disassembled and assembled,
Each part can be transported and used even by light labor.

Further, since this supporting device can be assembled by diverting a cylindrical triangular support (commonly called triangular flap material) used for concrete formwork, the number of parts of materials required at a construction site or the like can be reduced. be able to. Therefore, the construction cost can be reduced and the space such as a material storage space at a construction site can be reduced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing components such as a rod, a panel, a pressing member, and a pad member of a concrete formwork to which the supporting device according to the present invention can be applied.

FIG. 2 is an exploded perspective view showing components such as a tightening member of a concrete formwork, a tie rod, and a claw member.

FIG. 3 is a perspective view partially showing an example of an assembled state of the concrete formwork.

4 is a cross-sectional view taken along a horizontal plane including a chain line XX in FIG.

FIG. 5 is a sectional view showing an example of a concrete pouring formwork assembled to form a floor and a beam.

FIG. 6 is an enlarged view of a region Y in FIG.

FIG. 7 is a front view showing a joint.

8 is a cross-sectional view taken along the line ZZ in FIG.

FIG. 9 is a partial cross-sectional view of a support device for a concrete pouring formwork according to the present invention.

FIG. 10 is a perspective view showing components of a support device for a concrete pouring formwork according to the present invention.

11 is a plan view showing a pedestal used in the supporting device of FIG. 9. FIG.

12 is a cross-sectional view of the pedestal shown in FIG. 11 taken along the line AA.

FIG. 13 is a perspective view showing an example of a state before adhesion of a veneer manufactured from a softwood.

FIG. 14 is a side view of a plywood manufactured from the single plate shown in FIG.

FIG. 15 is a perspective view showing another example of a state before adhesion of a composite veneer manufactured from a softwood.

16 is a side view of a plywood manufactured from the composite veneer of FIG.

FIG. 17 is a front view showing a conventional supporting device.

FIG. 18 is a cross-sectional view showing another conventional supporting device.

[Explanation of symbols]

 15 Retaining member 37 Reinforcing member 50 Supporting device 51 Spiral tube 52 Locking rod 53 Rotating plate 54 Receiving table 55 Step section 56 Semi-circular notch (concave) 57 Semi-circular notch (concave) 58 Lower strut 59 Locking means 60 Length Hole 61 Upper support 62 Lower support 63,68 Tube 65,69,71 Hole 66 Operation rod 67 Upper support 70 Pin

Claims (8)

[Claims] 1. A lower strut, a spiral tube fitted to the lower strut, locking means for locking the spiral tube at a predetermined position with respect to the lower strut, and along a long hole formed in the spiral tube. A locking rod that can move in the longitudinal direction of the spiral tube, a turntable that is mounted on the locking tube and that is screwed into the spiral tube that can be set at a predetermined position in the vertical direction with respect to the spiral tube, and the spiral tube. An upper strut fitted and placed on the locking rod,
Device for a concrete formwork having a. 2. A pedestal having a step portion formed on one surface and a recess portion formed on the other surface is provided, the lower end portion of the upper strut is fitted to the step portion, and the engagement is performed in the recess portion. Support device for concrete formwork according to claim 1, characterized in that the rods are engaged. 3. The support device for a concrete formwork according to claim 1, wherein an upper support base is locked to the upper support column so that the length of the upper support base can be adjusted. 4. The upper support base is provided with a tubular portion that fits into the upper strut, and the tubular portion is formed with a plurality of holes aligned in the longitudinal direction, and a step portion is formed on one surface. In addition, a pedestal having a recess formed on the other surface is provided, the upper end of the upper column is fitted to the step, and the pin inserted into one of the holes is engaged with the recess. Support device for a concrete formwork according to claim 3. 5. The supporting device for a concrete formwork according to claim 1, wherein a lower support base is locked on the lower support column so that the length thereof can be adjusted. 6. The lower support base is provided with a cylindrical portion that fits into the lower support, a plurality of holes aligned in the length direction are formed in the cylindrical portion, and a step portion is formed on one surface. In addition, a pedestal having a recess formed on the other surface is provided, the lower end of the lower column is fitted to the step, and the pin inserted into one of the holes is engaged with the recess. A support device for a concrete formwork according to claim 5. 7. The support for a concrete formwork according to claim 1, wherein the lower support column and the upper support column are padding members made of tubular triangular support columns used in a concrete placing formwork. apparatus. 8. The support device for a concrete formwork according to claim 1, wherein the turntable is provided with a foldable operation rod for rotating the turntable.