JPH076358Y2 - Concrete form spacing device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete formwork space holding device for holding a space between molds, which determines the thickness of concrete, at a predetermined dimension when pouring concrete.

[0002]

2. Description of the Related Art In the plan view of FIG. 16, reference numeral 1 is an H-shaped steel for retaining earth, and a large number of H-shaped steels are arranged side by side and vertically driven into the soil to excavate and remove the soil on the front side of the H-shaped steel 1. When placing the concrete 3 in contact with the soil 2 which is soiled with the H-shaped steel 1, the form 5 is used to set the thickness 4 of the concrete 3.

Conventionally, in order to hold the form 5 while maintaining the dimension of the thickness 4 of the concrete 3 for which the distance between the soil 2 and the form 5 is to be placed, the flange of the H-shaped steel 1 is firstly attached to the flange. Drive the tip of the ramset fastener 6 with a rivet gun. A male screw 7 is engraved on the proximal end of the ram set fastener 6 on the front side in FIG.

Reference numeral 8 is a pipe-shaped turnbuckle,
A female screw 9 that is screwed into the male screw 7 of the ramset fastener 6 is engraved at the tip. The proximal end 10 side of the pipe-shaped turnbuckle 8 in FIG. 16 is reduced in diameter so as to have a small diameter, and an internal thread (not shown) is provided on the inner surface of the reduced diameter of the proximal end 10. It is carved.

As described above, after the tip of the ramset fastener 6 is driven into the flange of the H-shaped steel 1 with a rivet gun, the male screw 7 of the ramset fastener 6 is screwed with the female screw 9 at the tip of the turnbuckle 8. The turnbuckle 8 is horizontally fixed to the H-shaped steel 1. And the base end 1 of the turnbuckle 8
A screw rod 11 having a male screw engraved over the entire length is screwed into a female screw (not shown) on the inner surface of the 0 side.

On the proximal end side of the screw rod 11 on the front side in FIG. 16, a formwork fixing member 12 is attached by screwing, and when the screw rod 11 is screwed on the base end 10 of the turnbuckle 8. The depth is set so that the distance from the surface of the soil 2 of the base end face 13 of the formwork fixing member 12 becomes 4 mm.

A bolt 14 is fixed to the center of the base end surface 13 of the mold holding member 12, and the mold 5 is fitted into the bolt 14 so that the inner surface of the form 5 comes into close contact with the base end surface 13 of the mold holding member 12. Then, the distance between the inner surface of the formwork 5 and the surface of the soil 2 is set to the dimension of the thickness 4 of the concrete 3 to be placed. Next, the horizontal pipe member 15 and the vertical pipe member 16 are joined to the outer surface of the form 5 in a cross shape, and the tip of the home tie 17 fixed to the vertical pipe member 16 is screwed into the bolt 14 of the form stop member 12. , Form 5 is fixed to form stop member 12.

After fixing the formwork 5 to the formwork stopping member 12 in this way, concrete 3 is placed between the soil 2 and the formwork 5.
When concrete is poured, the concrete 3 is poured with a preset thickness 4.

[0009]

However, when the concrete 3 is not the wall portion but the column 18 as shown in FIG. 17, the reinforcing bar 19 of the column 18 is an obstacle, and the ramset fastener 6 is struck by the rivet gun. Could not be driven into the flange of H-section steel 1. Therefore, conventionally, at the portion of the pillar 18, the tip of the turnbuckle 8 is fixed to the flange of the H-shaped steel 1 by welding 20, and a long screw rod 11 is screwed onto the turnbuckle 8 to form the mold 21 of the portion of the pillar 18. I was stopping.

For this reason, conventionally, it has been necessary to weld the turnbuckle 8 to the H-shaped steel 1 at the portion of the column 18, which is troublesome and laborious.

In addition, at a location where the H-shaped steel 1 is spaced apart, the spacing at which the turnbuckle 8 is provided is also spaced apart, and the form 5
There was a drawback that it could not be fixed enough.

This invention eliminates the above-mentioned conventional drawbacks,
In the place where the reinforcing bar 19 of the pillar 18 is present, the turnbuckle 8 can be fixed to the H-shaped steel 1 without using the ram set fastener 6 which needs to be driven with a struck gun, and the H-shaped steel 1 is spaced apart. It is an object of the present invention to provide a concrete formwork space holding device in which a turnbuckle 8 is provided at a place to hold the formwork 5, 21.

[0013]

SUMMARY OF THE INVENTION A concrete form spacing device according to the present invention is an H-mounting machine for mountain retaining which is vertically driven into the soil.
Shaped steel, support fittings that can be fixed to the H-shaped steel for mountain retaining, beams fixed to the support and horizontally supported along the outer surface of the H-shaped steel for mountain retaining, and a direction orthogonal to the longitudinal direction of the beams. And a pipe-shaped turnbuckle that is horizontally fixed to the beam and has an internal thread engraved on the inner surface, a screw rod whose tip side is screwed into the internal screw of the turnbuckle, and a base end side of the screw rod. It is characterized in that it is provided with a mold.

[0014]

A beam is horizontally fixed to a support fitting fixed to an H-shaped steel for mountain retaining, and is fixed to the beam in a direction perpendicular to the longitudinal direction of the beam and horizontally to the beam, and a pipe-shaped internal thread is engraved on the inner surface. By screwing the threaded rod to the internal thread of the turnbuckle, the ramset fastener is not used, and the turnbuckle and the threaded rod are provided to hold the formwork even when there is a gap between the H-shaped steel for mountain retaining. be able to.

[0015]

EXAMPLES Next, examples of the present invention will be described.

FIG. 2 is a perspective view of an embodiment of the support fitting 22 of the present invention, FIG. 3 is a plan view, FIG. 4 is a front view, and FIG. 5 is a left side view. On the back side of the metal fitting 22, there is an H-shaped steel holding portion 23 having a U-shaped planar shape and elongated in the up-down direction, and a set bolt 24 can be screwed into the lower portion of the H-shaped steel holding portion 23 from the surface. It has become.

In the upper half of the surface of the H-shaped steel holding portion 23, the shape seen from the side is L-shaped, and the upper bent portion 2 is provided at the upper end of the L-shaped.
5, the beam holding portion 27 having the L-shaped front end formed with the front bent portion 26 is integrally fixed to the front bent portion 2.
A set bolt 28 can be screwed into the upper surface of 6.

FIG. 6 is a perspective view of an embodiment of the beam 29 of the present invention, FIG. 7 is a plan view, FIG. 8 is a front view, and FIG. 9 is a left side view. Has an L-shape when viewed from the side and is elongated in the lateral direction. On the lower surface of the L-shape, turnbuckles 8 are arranged at appropriate intervals in a direction orthogonal to the longitudinal direction of the beam 29 and horizontally. It is fixed by welding.

This turnbuckle 8 is the same as the conventional turnbuckle 8 described with reference to FIG. 16, and as shown in FIG. 6, a female screw 30 is engraved on the inner surface on the base end 10 side whose diameter is reduced. .

Next, the support fitting 2 shown in FIGS.
The usage state of No. 2 will be described with reference to the plan view of FIG. 10, the front view of FIG. 11 and FIG. 12 showing the XII-XII cross section of FIG.

With the fixing bolt 24 loosened, the U-shaped H-shaped steel holding portion 23 is fitted to one flange of the H-shaped steel 1 for earth retaining, and the fixing bolt 24 is tightened to fix the support fitting 22 to the H-shaped steel. Fixed to 1. Similarly, the support fitting 22 is fixed to the other H-shaped steel 1 at the same height.

Next, as shown in FIG. 15 showing the plan view of FIG. 13, the front view of FIG. 14 and the XV-XV cross section of FIG. 13, the stop bolt 28 is loosened, and the upper bent portion 25 of the beam holding portion 27 is bent.
The end of the beam 29 is inserted between the front bent portion 26 and the front bent portion 26, and the fastening bolt 28 is tightened to fix the end of the beam 29 to the support fitting 22.
It is fixed to the beam holding part 27 of. As a result, the beam 29 is shown in FIG.
As shown in the plan view of FIG. 1, the two H-shaped steels 1 are horizontally supported along the surface of the H-shaped steel 1 by the two support fittings 22 fixed at the same height.

As a result, the turnbuckle 8 is rebar 1
It is also possible to provide it in a direction orthogonal to the longitudinal direction of the beam 29 and horizontally, and even at a location where there is no H-section steel 1 without using a rivet driving gun in which 9 is an obstacle.

Next, when a screw rod 11 similar to the conventional one is screwed into the female screw 30 (see FIG. 6) of the turnbuckle 8 fixed to the L-shaped lower surface of the beam 29, as shown in FIG. The screw rods 11 are arranged horizontally in a direction orthogonal to the longitudinal direction of the beam 29, and the formwork holding members 12 can be used to stop the formwork 12, 21 for each screw rod 11.

[0025]

The effect of the invention is that the beam 2 is supported by the support fitting 22.
9 is supported horizontally along the outer surface of the H-shaped steel 1, and the turnbuckle is fixed at a right angle to the longitudinal direction of the beam 29. Since the turnbuckle can be provided without using the turnbuckle, and the turnbuckle 8 can be provided even in a place where the H-shaped steel 1 is spaced apart from each other, the mold frames 5 and 21 can be easily and reliably held.

[Brief description of drawings]

FIG. 1 is a plan view showing a usage state of the present invention.

FIG. 2 is a perspective view of a support fitting.

FIG. 3 is a plan view of a support fitting.

FIG. 4 is a front view of a support fitting.

FIG. 5 is a left side view of the support fitting.

FIG. 6 is a perspective view of a beam.

FIG. 7 is a plan view of a beam.

FIG. 8 is a front view of a beam.

FIG. 9 is a left side view of the beam.

FIG. 10 is a plan view showing a state where the support fitting is fixed to the H-shaped steel for mountain retaining.

11 is a front view of FIG.

12 is a sectional view taken along line XII-XII of FIG.

FIG. 13 is a partial plan view showing a state where a beam is fixed to a support fitting.

FIG. 14 is a front view of FIG.

15 is a sectional view taken along line XV-XV in FIG.

FIG. 16 is a plan view of a conventional concrete formwork space maintaining device.

FIG. 17 is a plan view showing a usage state of a conventional concrete formwork space maintaining device.

[Explanation of symbols]

 1 H-shaped steel 5 Formwork 8 Turnbuckle 11 Screw rod 21 Formwork 22 Support metal fitting 29 Beam 30 Female screw

Claims (1)

[Scope of utility model registration request] 1. A H-shaped steel for mountain retaining which is vertically driven into the soil, a supporting metal fitting that can be fixed to the H-shaped steel for mountain retaining, and a horizontal surface along the outer surface of the H-shaped steel for mountain retaining that is fixed to the supporting metal. Supported on the beam, a pipe-shaped turnbuckle fixed to the beam in a direction orthogonal to the longitudinal direction of the beam and having a female screw engraved on the inner surface, and a tip end side of the female screw of the turnbuckle is screwed on the tip side. A concrete formwork space holding device comprising a screw rod to be fitted and a formwork fixed to the base end side of the screw rod.