JP2000192656A - Method and jig for fixing form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jig for fixing a form which can fix the form by a simple operation and, moreover, can be reused, without using a conventional jig for fixing the form, such as a separator. SOLUTION: Sheathing boards on both sides of a form are held by a pair of supports 1a and 1b and a pair of connecting rods 2a and 2b. In this method, the paired supports 1a and 1b are so stood as to hold the sheathing boards on both sides between, while the opposite end parts of one connecting rod 1a are joined removably to the upper end parts of the paired supports 1a and 1b and the opposite end parts of the other connecting rod 1b are joined removably to the paired supports 1a and 1b at portions below the aforesaid upper end parts and above the height of the form. Thereby the paired supports 1a and 1b are fixed in a state of holding the sheathing boards on both sides between.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of fixing a formwork, and more particularly to a method of gripping a weir of a grouting formwork and a jig therefor.

[0002]

2. Description of the Related Art Conventionally, a separator 9 as shown in FIG. 4 is used for fixing a damping plate of a grouting formwork at a predetermined interval between damping plates. The assembling of the mold using the separator 9 and the grout injection include: 1) attaching cones 10 to both ends of the separator 9; 2) making a hole through the cone shaft portion at a predetermined position of the damper 6 in advance; 6
Insert the separator 9 from the inside of the mold, connect it to the foam tie (registered trademark) 11, 4) sequentially set the round pipe 8 (vertical flutter and horizontal flutter), apply the washer 12, tighten the tightening nut 13, and set the formwork. Assembling 5) Then grouting the mold with the separator embedded. However, in the case of using such a means, in removing the formwork, after removing the washer 12 and the dam plate 6, respectively, the cone 10 is removed, and various operations such as filling the mortar into the cone mark are necessary and complicated. The used separator cannot be reused, and there is a problem that it becomes difficult to reuse the separator because holes are formed in the weir. That is, the conventional form fixing means requires a large number of disposable separators for each construction site, and
Complicated work is required.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to fix and remove a mold by a simple operation without using a conventional jig for fixing a mold which requires complicated operations. It is an object of the present invention to provide a mold fixing method jig and a fixing jig which enable reuse of the mold and the fixing jig.

[0004]

The inventor of the present invention has made intensive studies to solve the above-mentioned problems, and found that the above-mentioned problems can be solved by a jig having a very simple structure comprising a pair of columns and a pair of connecting rods. They found what they could do and completed the present invention. That is, the present invention is a method of gripping the dams on both sides of the mold by a pair of columns and a pair of connecting rods,
A pair of columns are leaned against the crests on both sides, and both ends of one connecting rod are detachably connected to upper ends of the pair of columns, and both ends of the other connecting rod are connected to the upper ends. Lower part, and by being detachably connected to the pair of struts at a position above the height of the formwork, the pair of struts are fixed while sandwiching the dams on both sides. The method. The present invention also provides
A jig for holding the weir plates on both sides of the formwork, which is longer than the height of the weir plate, and has two upper and lower holes through which the connecting rod penetrates at a position higher than the height of the weir plate, A pair of struts for holding the weirs on both sides of the formwork, and longer than the width of the formwork, and each of the upper and lower two holes of the pair of struts penetrate the upper and lower holes so that the pair of struts can be detached. The present invention also relates to the jig comprising a pair of connecting rods fixed in a proper state.

According to the present invention, it is easy to assemble and remove a molding form such as a grout injection form, and it is expected that workability can be improved, and jigs and dams can be reused. It is also economical. The present invention can be applied to any molding form, such as mortar, grout, concrete form, synthetic resin form,
It is particularly suitable for assembling and removing grout-injecting formwork in reinforcement work of buildings with reinforcing steel materials and the like.

The support used in the present invention can be made of any material as long as it has a strength capable of gripping the formwork. Further, the length can be selected to have an appropriate dimension longer than the height of the mold. Further, a column having two upper and lower holes through which the connecting rod penetrates at a position higher than the height of the weir plate is preferable because fixing with the connecting rod can be performed more easily. Further, as the shape of the strut, any shape may be used as long as it can hold the formwork, but for the crest plate or for the round pipe normally interposed between the crest plate and the strut. , To prevent the pillar from slipping, square material, outside of square pipe, cross section is groove shape, lip groove shape, L
A material having a shape such as a shape or an H shape is preferable.

As the connecting rod used in the present invention, any rod can be used as long as the pair of columns can be widened at fixed intervals longer than the width of the formwork. In addition, if the connecting rod has at least both ends threaded, the nut and the washer alone can be used to connect and remove the column having the two upper and lower holes, which facilitates the assembly and removal of the mold, which is preferable. In this case, the connecting rod may be a full screw bolt.

Further, regarding the connection between the connecting rod and the support in the present invention, the connection at the upper ends of the pair of supports is stressed from the inside to the outside, and the connection at the lower part is stressed from the outside to the inside. By doing so, since the struts press the weir, the formwork can be gripped more reliably, which is more preferable. In this embodiment, it is preferable that the coupling at the upper ends of the pair of columns is fixed with a nut and a washer from the inside of each column, and the coupling at the lower portion is fixed with a nut and a washer from the outside. With this configuration, the width of the form is performed by the connecting rods connected at each upper end of the pair of columns, and the form is tightened by the connecting rods connected at each lower portion. Because it is effective.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, one embodiment of the present invention will be described with reference to the drawings. However, this is merely for the purpose of describing the present invention in a more understandable manner. Needless to say, it is not a limitation. The jig shown in FIGS. 1, 2 and 3 of the present invention is an embodiment of a jig for a mold according to the present invention. The procedure for fixing and removing the mold using such a jig will be described below. 1) As shown in FIG. 2, in consideration of the width of the mold, a pair of connecting rods 2 a and 2 b composed of all screw bolts are previously assembled to the pair of columns 1 a and 1 b with the washer 4 and the nut 3. . At that time, the nuts 3 of the full screw bolt 2a
The distance between the pair of columns 1a and 1b is adjusted from the inside of each of the columns to substantially set the width of the mold. 2) As shown in FIG. 3, the assembled jig is positioned so as to sandwich the dams 6, 6 of the form via the round pipe 8 (flap). 3) Next, the nuts 3, 3 of the connecting rod 2b are connected to the pair of columns 1
The work of fixing the formwork is completed by clamping the dam 6 from the outside of each of the a and 1b. 4) Next, when removing the formwork, the full screw bolt 2
The jig is removed by loosening the nut 3 of b. This jig can be used again for the next operation.

[0010]

The fixture of the present invention does not require the use of a conventional fixture such as a separator, is reusable, and the assembling and removing operations of the mold are reduced. It is extremely economical because the efficiency is remarkably improved as compared with the conventional one.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mold jig according to one embodiment of the present invention.

FIG. 2 is a front view of a mold jig according to one embodiment of the present invention.

FIG. 3 is a view showing attachment of a jig for a formwork according to one embodiment of the present invention for gripping a formwork for graft injection in reinforcement work of a building with a reinforcing steel material.

FIG. 4 is a diagram showing attachment of a conventional mold jig.

FIG. 5 is an overall view showing a state in which a mold for grafting is fixed in a reinforcing work of a building with a reinforcing steel material using a jig for a mold according to one embodiment of the present invention.

FIG. 6 is an enlarged view of a mounting portion of the conventional mold jig shown in FIG.

[Explanation of symbols]

 1a, 1b ... pillar 2a, 2b ... connecting rod 3 ... nut 4 ... washer 6 ... weir board 8 ... round pipe 9 ... separator 10 ... cone 11 ... foam tie 12 ... washer 13 ... fastening nut

Claims (12)

[Claims] 1. A method of gripping a weir on both sides of a form by a pair of struts and a pair of connecting rods, wherein the pair of struts are leaned against the dams on both sides,
Both ends of one connecting rod are detachably connected to the respective upper ends of the pair of columns, and both ends of the other connecting rod are below the upper end and above the height of the formwork. By being connected to the pair of columns in a removable manner at the site,
The above method, wherein the pair of columns is fixed while sandwiching the weirs on both sides. 2. The method according to claim 1, wherein the pair of struts is made of a square member, a square pipe, or a member having a cross-sectional shape of a groove, a lip groove, an L shape, or an H shape. 3. A pair of pillars having upper and lower two holes through which a pair of connecting rods can respectively penetrate, and both ends of each connecting rod are passed through the holes of the pair of pillars. The method according to claim 1, wherein the pair of pillars and the respective connecting rods are connected at the through portion. 4. The connecting rod is characterized in that at least both ends of the connecting rod are threaded or full screw bolts, and both ends of the connecting rod are passed through holes of a pair of pillars, and then fixed with a nut. The method according to claim 3, wherein 5. A pair of struts are connected to each other by applying stress from the inside to the outside at each upper end of the pair of struts and applying stress from the outside to the inside at each lower portion. Characterized by pressing from both sides,
A method according to any of claims 1 to 4. 6. A joint at each upper end of a pair of struts is fixed by a nut from the inside of each strut, and a joint at each lower portion is fixed by a nut from the outside of each strut. The method according to claim 5, characterized in that: 7. The method according to claim 1, wherein the mold is a grout injection mold. 8. A jig for gripping a weir plate on both sides of a formwork, wherein the jig is longer than the height of the weir plate and the connecting rod penetrates at a position higher than the height of the weir plate. A pair of struts each having a hole for sandwiching the weirs on both sides of the formwork, the pair of struts being longer than the width of the formwork, and passing through the upper and lower two holes of the pair of struts, respectively; The jig comprising a pair of connecting rods for fixing the supporting column in a detachable state. 9. The jig according to claim 8, wherein the pair of pillars is formed of a square member, a square pipe, or a member having a cross-sectional shape of a groove, a lip groove, an L shape, or an H shape. . 10. The jig according to claim 8, wherein at least both ends of the connecting rod are threaded. 11. The jig according to claim 8, wherein the connecting rod is a full screw bolt. 12. The jig according to claim 8, wherein the mold is a grout injection mold.