JPH078722Y2 - Formwork fixture - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold fixing tool used in the case of constructing a concrete building or structure in place of a part of a flap or a pier for fixing the mold.

[0002]

2. Description of the Related Art Conventionally, when constructing a concrete building or structure, a formwork structure is formed by fixing the formwork with a flap or a splint supported through a support or the like.
A concrete placing space is provided.

This specific example will be described in the case of the formwork structure for constructing the protection wall shown in FIG. First, in the figure, a is a flap material used as a pair of two rectangular tubes,
b is a mold made of an iron plate or the like, and c is a separator in which the molds b are arranged at a predetermined interval, and screw parts are provided at both ends to provide a concrete casting space as d. The middle e is a tightening nut that is screwed into the threaded portion of the separator d to fix the flap material a and the form b. In addition, f is a washer disposed between the pair of butter members a and a and the tightening nut e. Further, g in the figure is a support for supporting the flap material a.

Two pieces of such flutter material a are arranged in parallel with at least an interval through which the separator c can pass, and in the illustrated one, the side in contact with the form b is set in the vertical direction.
Further, it is arranged laterally outside thereof.

Thus, such a formwork structure is assembled in the following manner. First, two pairs of flap materials a and a are assembled vertically and horizontally in a grid pattern. Then, in correspondence with the two pairs of overlapping flap materials a, a,
A tightening nut e screwed at a position corresponding to the inner side of the mold frame b on the tip side is locked to the inner side of the mold frame b so that the separator c penetrating the mold frame b is passed. Further, a pair of outer flaps a and a washer g for pressing the a are externally fitted on the tip side of the separator c, and then a tightening nut e is screwed to the outer side for tightening. Then, the mold frame b and the flap material a are similarly attached to the end portion on the opposite side of the separator d. In this way, the concrete placing space d is formed.

[0006]

In the case of constructing a concrete building or structure in this way, two pairs of butter materials a and a are tightening nuts e to be screwed onto the outside of the separator c. Is not fixed until it is completely tightened, and temporary fixing is required, which complicates the work and complicates the process. Then, the construction period becomes long, which causes the construction cost to rise.

The form fixture according to the present invention has been devised in view of the above conventional problems. By simplifying the assembly of the form structure, the construction period is shortened and the construction cost is reduced. The purpose is to

[0008]

In order to achieve such an object, according to claim 1 of the present invention, a pair of long C-shaped steel connecting pieces are opposed to each other with a space therebetween, and both ends thereof are attached by a mounting member. Along with the installation, open two openings with two flaps or splints in parallel facing each other on the connecting piece, and opening the opening at a required interval to correspond to the opening between the connecting pieces. A position fixing part, in which two position fixing bolts for fixing the flap material or the splint in position are screwed from the outside, is provided in an erected state, and
Separator to constitute a mold fixture having a temporary fixing portion to the erection like to temporarily fixed is inserted into the insertion port formed in which between continuous Yuihen to.

[0009]

Thus, in such a mold fixing tool, a mold structure is assembled, for example, as shown below. First, insert a pair of flap material or a splint into the opening of the mold fixing tool, and tighten the two position fixing bolts screwed into the position fixing part to fix the flap material or splint in position. Then, the formwork fixture and the flap or the stile are assembled in a grid pattern. And
The clamping nut screwed to the position corresponding to the inside of the mold on the tip side of the separator is locked inside the mold, and the mold is brought into contact with the inside of the free end pieces of the C-shaped steel to form the mold. Insert the tip side of the separator having the form frame penetrating through the insertion port of the temporary fixing portion of the fixture. Further, a washer which can abut on the outer side of the other free end piece of the pair of C-shaped steels is externally fitted to the tip end side of the separator, and then a tightening nut is screwed to the outer side for tightening. Then, in the same manner, a mold fixing tool in which the mold and the flap or the splint are attached in advance is attached to the opposite end of the separator. In this way, the concrete pouring space is formed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the mold fixing tool according to the present invention will be described with reference to the accompanying drawings.

A specific example of the formwork structure formed by using this formwork fixture will be described for the case of the formwork structure for constructing the protection wall shown in FIG. First, in the drawing, 1 is a mold fixing tool according to the present invention, 2 is an example shown in the drawing, butter members are used as a pair of two rectangular tube-like members, 3 is a mold formed from plywood, In the figure, 4 is a separator in which the formwork 3 is arranged with a required space, and a screw part is provided at both ends to provide a concrete casting space, and 6 is screwed to the screw part of the separator 4. This is a tightening nut for fixing the mold fixing tool 1 and the mold 3 by making them. Reference numeral 7 in the drawing denotes a washer arranged between the outside of the mold fixing tool 1 and the tightening nut 6. In addition, reference numeral 8 in the drawing denotes a support for supporting the form fixture 1.

As shown in FIGS. 2 to 7, such a mold fixing tool 1 has a pair of long C-shaped steels 10, 10 with connecting pieces 11, 11 facing each other with a space therebetween, and both ends having a plate shape. Along with the mounting member 12, two rectangular cylindrical flaps 2 and 2 are arranged in parallel with each other so as to face the connecting pieces 11, 11 and a rectangular opening 13 is formed to allow insertion with a certain space. To open the
Two position fixing bolts 14 and 14 for individually fixing the two flap materials 2 and 2 are respectively provided in correspondence with the two flap materials 2 and 2 of the opening 13 between the connecting pieces 11 and 11. The position fixing portion 15 screwed from the outside is welded and provided in a erected shape, and further, the separator 4 is inserted into the insertion opening 16 formed in the position offset from the opening 13 between the connecting pieces 11, 11. A temporary fixing portion 17 for temporary fixing is also welded and provided in an erected state.

In the figure, 18 is a connecting port provided at each of four corners of the mounting member 12, and 19 is a erected state between the free end pieces 20 of the C-shaped steel 10 corresponding to the openings 13 provided in the connecting piece 11. It is a reinforcing rib provided on the.

In the illustrated embodiment, since a plywood is used as the form 3, the C-shaped steel 10 is provided on the side opposite to the position fixing portion 15,
Since the flat bar 21 which is nailed and fixed is installed inside, the mounting member 12 has a cutout 22 through which the crosspiece 21 is inserted.
Has been established. Then, the edge of the opening 13 opposite to the position fixing part 15 and the position fixing part 15 side of the temporary fixing part 17 are formed on the same surface, and the flap 2 can apply a pressing force to the pier 21. Aspects are configured. Further, in this case, the insertion port 16 of the separator 4 of the temporary fixing portion 17 is also used for fixing the stile 21 to the form fixture 1.

The temporary fixing portion 17 is provided with such an insertion opening 16
Are arranged in parallel.

In addition, the flap material 2 is usually a rectangular tube having one side of 60 mm in many cases, and the width of the opening 13 is formed to be larger than the width of the two juxtaposed. Furthermore,
In this case, the center-to-center spacing of the openings 13 is set to about 450 mm. And such a formwork fixture 1
At this time, the width is 100 mm, the height is 170 mm, and the total length is 450 mm to 4500 mm.
It can be said that it is preferable that various lengths are formed for each.

Thus, in such a mold fixing tool 1, a mold structure is assembled as shown below. First, the pier 21 is dropped on the side opposite to the position fixing portion 15 of the gap formed between the pair of C-shaped steels 10 of the frame fixing tool 1, that is, on the side where the notch 22 of the mounting member 12 is opened, This is nailed and fixed using the insertion opening 16 formed in the temporary fixing portion 17. Next, a pair of flaps 2 and 2 in the opening 13 of the form fixture 1
, And the position fixing parts 15 are screwed into the position fixing parts 15 to tighten the two position fixing bolts 14 and 14 to fix the position of the flutter members 2 and 2. Assemble into a shape.
Then, a tightening nut 6 screwed into a position corresponding to the inside of the mold 3 on the tip side of the separator 4 is locked to the inside of the mold 3 formed of plywood, and the mold 3 is paired with a pair of C-shaped steels 10. , 10 to contact the inside of the free end piece 20 of the mold fixing tool 1 to allow the mold 3 to penetrate through the insertion opening 16 that is not used for nailing the pier 21 of the temporary fixing portion 17 of the mold fixing tool 1. Insert the tip side of the. After that, the form 3 is nailed and fixed to the pier 21. Further, a pair of Cs is provided on the tip side of the separator 4.
After a washer 7 that can come into contact with the free end piece 20 of the shape steel 10 in a bridge shape is externally fitted, a tightening nut 6 is screwed and tightened on the outside. Then, in the same manner, the fixture 1 to which the mold frame 3, the crosspiece 21 and the flap material 2 have been previously attached is attached to the end portion on the opposite side of the separator 4. In this way, the concrete pouring space 5 is formed.

[0018]

As described above, in the form fixture according to the present invention, both ends of the pair of C-shaped steels are attached by the attaching members, and the flap or the splint can be fixed in position beforehand.
Moreover, since the separator can also be temporarily fixed, the labor for assembling the formwork structure can be greatly reduced, and the construction period can be shortened and the construction cost can be reduced.

Further, since a gap is formed between the pair of C-shaped steels, by appropriately adjusting the positional relationship of provision of the temporary fixing portion of the separator, a pier serving as a fixing member when plywood is used as the formwork. Can also be mounted in this gap.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a state in which a formwork structure for constructing a protection wall is formed using the formwork fixture according to the present invention.

FIG. 2 is a perspective view showing an end side of this form fixture.

FIG. 3 is a front view showing the end side as well.

FIG. 4 is a plan view showing a part of the same.

[Figure 5] Similarly, a side view

6 is an enlarged cross-sectional view taken along the line AA in FIG.

7 is an enlarged sectional view taken along line BB in FIG.

FIG. 8 is a cross-sectional view showing a main part of a formwork structure formed using this formwork fixture.

FIG. 9 is an explanatory view showing a formwork structure for constructing a conventional protection wall.

[Explanation of symbols]

 1 Formwork fixture 2 Butter material 3 Formwork 4 Separator 5 Concrete pouring space 6 Tightening nut 7 Washer 8 Support 10 C-shaped steel 11 Connecting piece 12 Mounting member 13 Opening 14 Position fixing bolt 15 Position fixing part 16 Insertion port 17 Temporary fixing part 18 Connection port 19 Reinforcing rib 20 Free end piece 21 Jetty 22 Cutout port

Claims (1)

[Scope of utility model registration request] 1. A pair of long C-shaped steel connecting pieces are opposed to each other with a space therebetween, both ends are attached by attaching members, and two flaps or splints are arranged in parallel so as to face each other. The openings for inserting the holes are opened at a required interval, and the two position fixing bolts for fixing the positions of the two flaps or the splints are screwed from the outside in correspondence with the openings between the connecting pieces. position fixing portion provided on the erection shape, mold fixture further to provide a temporary fixing unit that temporarily fixed is inserted into the insertion port formed in this <br/> separator between communicating Yuihen the erection shape.