JP3707614B2 - Horizontal pull fixed model - Google Patents

Description

[0001]
[Industrial application fields]
The present invention, when assembling the mold to be used for pouring the concrete, about Purakon fixing the separators to keep the distance between the mold and the mold constant.
[0002]
[Prior art]
In the mold forming work, it is common to attach a separator for making the interval between the molds constant between two facing molds. This separator keeps the interval between the molds constant when assembling the molds, and also has a role of preventing the gaps from being widened by the concrete pressure when concrete is placed in the molds. Such a separator is a cylindrical column made of metal and cannot be attached to a corner portion of a formwork called a projecting corner. Therefore, a chain and a turnbuckle are used to fix the projecting corner (for example, Patent Document 1). ).
[0003]
On the other hand, when assembling a special formwork in which one formwork is inclined as shown in FIG. 7, the procedure is as follows. First, the direct placon 72 and the universal placon 73 are attached to both ends of the metal separator 71. The straight platen 72 is a resin truncated cone. The flexible platen 73 is attached to a base screwed with the separator 71 so that a tendency board which is in contact with the formwork is swingable. The direct-current model computer 72 and the universal model computer 73 have a shaft center (not shown) on the side in contact with the mold. Next, holes are made in the molds 74 and 75, and the axis of the direct placon 72 is passed through the mold 74, and the axis of the universal model 73 is passed through the mold 75. At this time, the tendency plate of the flexible platen 73 is moved so that the contact surface with the mold 75 is adjusted to be the same as the inclination angle of the mold 75. Then, the form tie shaft 76 is screwed to the shaft center (not shown) from the outside of the molds 74 and 75, and the molds 74 and 75 and the separator 71 are fixed. At this time, a washer 77 is attached between the inclined formwork 75 and the foam tie shaft 76. The universal washer 77 has a wedge shape, and the angle can be freely changed according to the inclination of the mold. As a result, the mounting surface of the foam tie shaft 76 becomes perpendicular to the separator 71, and the shaft center and the foam tie shaft 76 can be screwed together. Thereafter, the standing pier 78 is attached to the molds 74 and 75, and the horizontal pipe 79 is fastened with the pipe fastening washer 80. At this time, a gap is formed between the standing bridge 78 on the mold 75 side and the horizontal pipe 79 a placed on the upper side of the foam tie shaft 76. Since the formwork is not sufficiently fixed as it is, the camber 81 is inserted between the standing bridge 78 and the horizontal pipe 79 to complete the fixing.
[0004]
[Patent Document 1]
JP-A-9-317175 (FIG. 7)
[0005]
[Problems to be solved by the invention]
However, the above-described method of fixing the corners requires an extra tool such as a chain and a turnbuckle and an extra effort to attach it. In other words, in order to obtain sufficient strength, it is necessary to fix the chain with three to four places on a single formwork. However, in the formwork of buildings, etc., there are multiple corners and the height is higher. Since several molds are connected in the direction, there are dozens of fixed points by chains. The time required for the mounting work accounts for a large percentage of the total work time required for assembling the formwork, and this wasteful material and labor leads to an increase in work volume and work time, leading to an increase in construction costs. Yes.
[0006]
Also, in the case of a formwork having an inclination as shown in FIG. 7, special materials such as a flexible platen 73, a flexible washer 77 and a camber 81 are required, which leads to an increase in construction cost.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide a horizontal pulling fixed platen for a separator that can reduce material and working time.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the lateral pulling and fixing platen of the present invention has an axial center formed with a female screw that is engaged with the male screw of the separator having a male screw at both ends, and a thick portion is formed on one of the axial centers. It was set as the structure which has.
[0009]
Moreover, it can also be set as the structure by which the nail hole is pierced in the thick part of the said horizontal pulling fixed plastic substrate.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, the horizontal pulling fixed platen of the present invention will be described with reference to the drawings. Fig.1 (a) is a side view of the separator of this invention, (b) is a top view. The separator 1 is made of a metal such as steel formed in a cylindrical shape. Male screws 2 and 2 are formed at both ends of the separator 1, and stoppers 3 and 3 having a larger outer diameter than the male screws 2 and 2 inside the male screws 2 and 2. Is formed.
[0011]
In the vicinity of the one stopper 3 of the separator 1, a recess 4 is formed by flattening a cylinder. Therefore, the recess 4 has a portion that is larger than the outer diameter of the stopper 3 as shown in FIG. Further, the recess 4 is not quenched, and can be bent at an arbitrary angle by a hand or a tool in the direction of the arrow in FIG.
[0012]
FIG. 2 is a view showing the lateral pulling fixed platen of the present invention. (A) is a cross-sectional view of a horizontal pulling fixed placon, and (b) is a side view of an axial center. The laterally pulling and fixing platen 5 is made of resin. A surface 5a has a shaft center receiver 18 which is a recess for receiving a rib 10 of the shaft center 6 described later, and a cavity 17 is opened on the surface 5b. Further, the corners 13 and 14 from the axis 6 are thicker, and a nail hole 15 is formed.
[0013]
The shaft center 6 is made of metal and is attached to the lateral pulling fixed platen 5 by an axial center stopper 16 of the horizontal pulling fixed platen 5. A male screw 8 is formed at one end of the shaft 6, and a rib 10 is provided at the other end. A female screw 7 is formed from the rib 10 toward the male screw 8 inside the shaft center 6. The female screw 7 is formed so that the male screw 2 of the separator 1 is screwed together, and the depth thereof is slightly deeper than the length of the male screw 2.
[0014]
The wrench engaging portion 9 has a hexagonal shape, and is used when taking out the laterally pulling fixed platen 5 and the shaft 6 from the concrete when the concrete is solidified and the formwork is dismantled. By inserting a box wrench into the cavity 17 between the wrench locking portion 9 and the lateral pulling fixed platen 5 and turning it in the direction to unscrew the separator 1, the shaft 6 can be taken out from the concrete. Here, since the rib 10 is fitted into the shaft support 18, the rib 10 can be caught on the horizontal pulling fixed platen 5 when taking out from the concrete, and the horizontal pulling fixed platen 5 can be taken out together with the shaft 6. It has become.
[0015]
FIG. 3A is a plan view of the laterally pulling fixed platen 5 as viewed from the surface 5a side, and FIG. The laterally pulling fixed control unit 5 has a semicircular arc on the corners 11 and 12 side, and the arcs 13 and 14 on the opposite side across the axis 6 have a gentler arc. The shaft center 6 is attached at a position corresponding to the center of the arc on the corners 11 and 12 side, and the nail holes 15 are drilled at two locations in parallel with the inclinations of the corners 13 and 14.
[0016]
FIG. 4 is a view showing a state in which the separator 1 is attached to the lateral pulling fixed platen 5. The procedure shown in FIG. 4 is as follows. First, the male screw 2 on the recess 4 side of the separator 1 is screwed into the female screw 7 formed on the shaft center 6. Since the male screw 2 has a stopper 3 having an outer diameter larger than that of the male screw 2, when the stopper 3 reaches the female screw 7, it cannot be screwed any further. When the male screw 2 is screwed in, it is bent at about 90 degrees from the recess 4 toward the corner 13 where the thick portion is located. The horizontal pulling fixing control unit 5 presses the surface 5b against the mold 20 and screws the foam tie shaft 21 from the opposite side of the mold 20.
[0017]
Thus, it is necessary to bend the separator 1 to the side (the side with the corners 13 and 14) where the thickness of the laterally pulling fixed placon 5 is increased. This is because when the separator 1 is fixed to the separator 1, a force is applied to pull rightward in FIG. 4. For example, when the separator 1 is bent toward the corners 11 and 12, the corner 12 cannot withstand the force of pulling sideways. The lateral pulling fixed control unit 5 or the mold 20 is damaged. On the other hand, when bent to corners 13 and 14 on the thick side, the area from the axis 6 to the corner 14 of the surface 5b is large, and the pulling force is distributed over the entire surface. It is possible to prevent the fixed placon 5 from being damaged. Further, the thick portion can be formed over the entire circumference of the laterally pulling fixed placon 5. This eliminates the need to worry about the direction of bending.
[0018]
FIG. 5 is a top view showing a state in which the separator and the laterally pulling fixed platen of the present invention are used for a mold. When assembling a formwork having an L-shaped corner as shown in FIG. 5, the following procedure is used.
[0019]
First, the separator 1 is screwed into the horizontal pulling fixing platen 5 and bent from the recess 4 to form a shape as shown in FIG. Since there are several types of separators 1 depending on the length, the separator 1 having a length suitable for the purpose is used. Usually, the separator 1 is required to have a length of about 2 m between the mold 20a and the mold 20d so that two or three molds having a width of 600 mm are sandwiched between the molds 20b and 20c. It becomes. The plurality of molds are sandwiched between the molds 20a because the mold 20a is pulled in the direction of the mold 20a by the pulling force of the separator 1, so that the molds 20b and 20c between them are in close contact with each other. This is because leakage of concrete can be prevented.
[0020]
At this time, the recess 4 is formed as close as possible to the laterally pulling fixed platen 5 in order to withstand the pulling force of the separator 1, that is, either one of the stoppers 3 at both ends of the separator 1. It is desirable to be formed in a place close to. If the indentation 4 is formed away from the lateral pulling fixed platen 5, that is, near the center of the separator 1, the separator 1 is not able to withstand the lateral pulling force and bends from the vicinity of the horizontal pulling fixed platen 5, This is because the role of fixing the formwork may not be fulfilled.
[0021]
A known straight platen 5 is screwed into the male screw 2 on the mold 20a side of the separator 1. The direct placon 5 is the same as the direct placon 72 shown in FIG. This is a truncated cone having no thick portion like the laterally pulling fixed platen 5, and an axis 6 used in the laterally pulling fixed platen 5 is attached to the center portion thereof. It is possible to use the horizontal pulling fixed platen 5 of the present invention in place of such a straight platen 5, but the fixed platen on the side of the mold 20a only has a force perpendicular to the mold 20a. It is not necessary to use the horizontal pulling fixed control unit 5.
[0022]
When the laterally pulling fixed platen 5 and the directing platen 5 are attached to the male screws 2 and 2 at both ends of the separator 1, the axis 6 of the laterally pulling fixed platen 5 to the contact surface with the formwork 20a of the other directing placon 5 is provided. The length is measured, and a hole is made in the mold 20d located at a position separated from the mold 20a. At this time, a hole is also made in the mold 20a.
[0023]
Next, the shaft centers 6 are passed through the holes formed in the molds 20a and 20d, and the foam tie shaft 21 is attached to the male screw 8 from the outside of the molds 20a and 20d. The foam tie shaft 21 is the same as the foam tie shaft 76 shown in FIG. The foam tie shaft 21 is made of metal and has a cylindrical shape. A female screw into which the male screw 8 is screwed is formed at one end, and a pipe fastening washer 22 for stopping a horizontal pipe 25 for fixing the formwork is formed at the other end. A hex nut 23 for fixing the washer 22 is attached. When the horizontal pulling fixed platen 5 is fixed to the mold frame 20d with such a foam tie shaft 21, a nail is struck into the two nail holes 15, 15 in order to prevent the lateral pulling fixed platen 5 from being laterally displaced.
[0024]
As described above, when the mold 20a and the mold 20d can be fixed by the separator 1, the remaining mold 20 is then assembled. Here, a known separator 1 is attached between the facing molds 20, 20 so as to be perpendicular to the mold 20, and a foam tie shaft 21 is attached from the outside of the mold 20. This separator 1 is the same as the separator 71 shown in FIG.
[0025]
When all the molds 20 are assembled, the standing bridges 24 are attached to the outside of the molds 20, 20a, 20b, 20c, and 20d at regular intervals. This and a horizontal pipe 25 to be described later are for preventing the molds 20, 20a, 20b, 20c, and 20d from being bent by the concrete pressure when concrete is placed on the mold. Therefore, a pipe may be used instead of the standing pier 24. Further, depending on the formwork, the standing pier 24 may be attached in advance, and in such a case, this step becomes unnecessary.
[0026]
Finally, the horizontal pipe 25 is passed between the pipe fastening washer 22 and the standing pier 24, and the hexagon nut 23 is tightened to fix it firmly. This completes the assembly of the formwork and is ready to cast concrete.
[0027]
As can be seen from the above-mentioned process of assembling the formwork, the use of the separator 1 and the laterally pulling fixing platen 5 of the present invention makes it possible to fix the protruding corner without using a chain and a turnbuckle.
[0028]
In addition, the separator 1 of the present invention can be bent not only at 90 degrees but also freely at an arbitrary angle. Therefore, it can also be used when assembling the following special formwork.
[0029]
FIG. 6 is a front view of a second embodiment of a mold assembled using the separator and the lateral pulling fixed platen of the present invention. Although the mold frame 20 stands upright with respect to the ground, the mold frame 26 is assembled obliquely so that the distance from the mold frame 20 becomes narrower as it goes upward.
[0030]
To assemble such a formwork: First, the separator 1 is attached to the horizontal pulling fixed platen 5 and bent. In FIG. 6, the separator 1 is bent so that one end of the separator 1 is perpendicular to the mold 20 and at the same time the other end is perpendicular to the mold 26 without being bent at 90 degrees. Then, a known straight platen 5 is attached to the male screw 2 to which the lateral pulling fixed platen 5 is not attached.
[0031]
Thereafter, similar to the procedure described with reference to FIG. 5, holes are made in the molds 20 and 26, the shaft center 6 is passed through, the foam tie shaft 21 is attached to the shaft center 6 from the outside of the molds 20 and 26, and the mold 20 and 26, a nail is struck into the nail hole 15 of the laterally pulling fixed platen 5 and, if necessary, the vertical crosspiece 24 is attached to the molds 20 and 26, and the horizontal pipe 25 is connected to the vertical crosspiece 24 and the pipe clamping washer 22 The hexagon nut 23 is tightened and fixed in between.
[0032]
As described above, when the separator 1 and the horizontal pulling fixed platen 5 of the present invention are used, special materials such as the universal platen 73, the universal washer 77, and the camber 81 can be used even when the facing molds 20 and 26 are not parallel to each other. Since it becomes unnecessary, useless work is reduced and the overall work time can be shortened.
[0033]
When concrete is placed in the completed formwork and the concrete solidifies after a curing period, the formwork is dismantled. Disassembling the formwork is the reverse of assembly. First, the horizontal pipe 25 is removed, and then the foam tie shaft 21 is removed. When all the foam tie shafts 21 are removed, the molds 20, 20a, 20d, and 26 are removed. Then, the horizontal pulling fixed platen 5 and the straight platen 5 appear on the concrete surface. Since the shaft center 6 protrudes from the concrete surface and is dangerous because the horizontal pulling fixed platen 5 and the straight platen 5 need to be removed, a box wrench is inserted into the cavity 17 and fitted with the wrench locking portion 9. Then, the axis 6 is rotated in a direction to release the screwing of the female screw 7 and the male screw 2. At this time, the laterally pulling fixed platen 5 and the straight platen 5 are pushed to the surface side of the concrete by the ribs 10 of the shaft center 6 and can be removed together with the shaft 6 from the concrete. A mortar or the like is embedded in the trace from which the horizontal pulling fixed control board 5 and the direct driving control board 5 are removed. In this way, the concrete wall is completed.
[0034]
Note that the separator and the laterally pulling fixed platen of the present invention are not limited to the above-described embodiments. For example, it can be widely applied to an opening for attaching a window frame, a door, or the like. Conventionally, such an opening has been stretched by a crosspiece or the like. However, by using the separator and the laterally pulling fixed computer of the present invention, it is not necessary to stretch by the crosspiece, and material and labor can be saved.
[0035]
【The invention's effect】
As described above, according to the crosscut fixed Purakon of the present invention has an axis of female screw of the male screw and the screwing separators is formed, be configured to have a thick portion at one of the shaft center in, it is possible to prevent damage to the mold or the like when using the separator.
[Brief description of the drawings]
1 (a) is a side view of the separators, (b) is a plan view.
FIG. 2 is a diagram showing a lateral pulling fixed platen of the present invention. (A) is a cross-sectional view of a laterally pulling fixed platen, and (b) is a side view of an axial center.
FIG. 3A is a plan view of a laterally pulling fixed platen as viewed from the upper surface side, and FIG.
FIG. 4 is a diagram showing a state in which a separator is attached to a horizontal pulling fixed platen.
FIG. 5 is a top view showing a state in which the horizontal pulling platen of the present invention is used for a mold.
FIG. 6 is a front view of a second embodiment of a mold assembled using the laterally pulling fixed placon of the present invention.
FIG. 7 is a front view showing a conventional method for fixing an inclined mold.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Universal bending separator 2 Male screw 4 Indentation 5 Lateral pulling fixed platen 6 Axle center 7 Female screw 15 Nail hole

Claims (2)

A horizontal pulling fixed platen characterized by having a shaft center on which a female screw to be engaged with the male screw of a separator having a male screw at both ends is formed, and having a thick portion on one of the shaft centers. Crosscut fixed Purakon of claim 1, wherein the nail hole is bored in a portion of the thickness of the crosscut fixed Purakon.

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