JP3134060B2 - Concrete formwork spacing retainer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a space holder for a concrete formwork for forming a rock-like pattern on the surface of a foundation concrete, for example.

[0002]

2. Description of the Related Art Conventionally, when a structure such as a concrete wall having a high height is formed, a plurality of concrete forms are connected in a longitudinal direction, and a plurality of concrete forms are stacked inside and outside in a height direction. They were arranged facing each other at a predetermined interval. In this case, between the upper ends of the innermost and outermost concrete forms located at the uppermost part and between the lowermost parts of the innermost and outermost concrete forms located at the lowermost part, an end for maintaining a space between the forms is provided. A spacing device was provided. Also, at the joint between the upper and lower concrete forms in the stacked state, an intermediate space holding tool for maintaining the space between the form forms is also provided between the inner and outer concrete forms.

When a structure such as a concrete wall having a high height is required to be provided with a rock-like uneven pattern on the surface of the structure, an uneven pattern forming surface is formed on the surface. The pattern board which had it was used. That is,
Along with connecting a plurality of concrete forms in the longitudinal direction and stacking them in the height direction, they are placed facing each other at a predetermined interval on the inside and outside, and then placed on the inner surface of one of the inside and outside concrete forms. A pattern board was erected and arranged along.

[0004]

However, when forming a structure such as a tall concrete wall as described above, when a pattern plate is erected and arranged along the inner surface of one concrete formwork, There has been a problem that the conventional intermediate space holding member cannot be provided. That is,
Since the pattern plate is located adjacent to the joint of the upper and lower concrete forms in the stacked state, the pattern plate is in the way, and it is difficult to install the intermediate space holding device between the inner and outer concrete forms Met.

[0005] The present invention has been made by paying attention to such problems existing in the prior art. The purpose is to form a tall concrete wall or other structure, even if the pattern boards are erected along the inner surface of the concrete formwork, without stacking the pattern boards. It is an object of the present invention to provide a concrete form spacing retainer that can be easily mounted and used between the inner and outer concrete forms at the joint between the upper and lower concrete forms in the state.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a plurality of concrete forms are connected in the longitudinal direction, and the concrete forms are stacked in the height direction. And a pattern board is erected along the inner surface of either one of the inside and outside concrete formwork at a predetermined interval on the outside and at the joint of the concrete formwork in a piled state. of the distance holder of the concrete formwork which retains the spacing between the concrete form, the shape or deformed cranked plane transverse rather in the central portion
A first regulating member engageable with both inner and outer side edges of the stacked upper and lower concrete forms positioned on the opposite side to the pattern plate is fixed to one end of the holder main body having the bent portion formed therein, At the other end, an insertion member that can be inserted between the stacked upper and lower concrete forms positioned on the pattern board side through an insertion hole on the pattern board, and a frusto-conical joint that can be joined to the inner surface of the pattern board The second member is detachably attached to the tip of the insertion member, and a second regulating member engageable with the outer edges of the stacked upper and lower concrete forms located on the pattern plate side.

According to a second aspect of the present invention, in the spacing device for a concrete form according to the first aspect, the width of the insertion member is set to be smaller than the outer diameter of the joining member.

According to the third aspect of the invention, in the concrete form spacing device according to the first or second aspect, the second regulating member is formed of a wedge member detachable from a slit on the insertion member. It is composed.

According to a fourth aspect of the present invention, in the spacing member for a concrete form according to any one of the first to third aspects, the joining member is formed of a synthetic resin.

According to a fifth aspect of the present invention, in the spacing holder for a concrete form according to any one of the first to fourth aspects, the holding body is formed of a metal rod and the first regulating member. Formed of a metal plate,
The first regulating member is welded and fixed to the holder body with one end of the holder body being fitted into the fitting groove on the regulating member.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, the concrete form 11 is formed in a horizontally long rectangular plate shape having a predetermined thickness, and a plurality of connecting pins 12 are arranged at a predetermined interval on one side edge of an outer surface thereof. When forming a structure such as a high concrete wall, a plurality of concrete forms 11 are connected in the longitudinal direction by connecting pins 12, and a plurality of concrete forms 11 are stacked in the height direction. , Inside and outside at predetermined intervals.

The pattern plate 13 is formed of a synthetic resin in the shape of a flat plate, and has a bent portion 13a formed at the upper end thereof and an uneven pattern forming surface 13b formed on the surface. When an uneven pattern such as a stone pattern is provided on an outer surface or an inner surface of a structure such as a concrete wall,
By locking the bent portion 13a of the pattern plate 13 to the upper edge of the outer or inner concrete form 11, the pattern plate 1
3 is erected along the inner surface of the concrete form 11 over the entire length in the height direction.

The connecting member 14 is formed in a substantially H-shaped side surface by a metal plate. As shown in FIGS. 1 and 3, when stacking the concrete form 11 on the side on which the pattern plate 13 is erected and arranged in the height direction, a pair of connecting members 14 are provided.
Are interposed on both sides between the upper and lower concrete forms 11.
As a result, the upper and lower concrete forms 11 are connected so as not to be displaced inward and outward, and a predetermined gap 15 is formed at a joint between the upper and lower concrete forms 11.

A horizontally long slit-shaped insertion hole 16 is formed in the middle of the pattern plate 13 so as to correspond to the gap 15 between the upper and lower concrete forms 11. The spacing member 17 is provided between the inner and outer concrete forms 11 at the joint of the upper and lower concrete forms 11 in the stacked state.
3 is inserted through the third insertion hole 16. Then, the intermediate portions of the inner and outer concrete forms 11 are held at a predetermined interval by the interval holder 17.

In addition, between the upper ends of the inner and outer concrete forms 11 located at the uppermost position in the stacked state and between the lower ends of the inner and outer concrete forms 11 located at the lowermost position, not shown end intervals. Holder is attached. The upper and lower ends of the inner and outer concrete forms 11 are held at predetermined intervals by these end interval holding tools.

As shown in FIGS. 2 to 5, the spacing member 17 includes a holder body 21 and a first regulating member 22 fixed to one end of the holder body 21. Further, the spacing member 17 includes a joining member 23 detachably attached to the other end of the holding member main body 21, an insertion member 24 protruding outside the joining member 23, and a distal end of the insertion member 24. And a second regulating member 25 that is detachably attached.

The holder main body 21 is formed of a metal rod, and has a bent portion 2 formed in a central portion at the center thereof in a shape of a horizontal letter.
1b is formed so as to avoid the vertical bars 29 among the reinforcing bars embedded in the concrete wall. Further, a screw portion 21 a is formed at an end of the holder main body 21.
The first restricting member 22 is formed of a metal plate, and has a pair of restricting pieces 22a on its upper and lower surfaces which can be engaged with both inner and outer side edges of the stacked upper and lower concrete form 11 located on the opposite side of the pattern plate 13. , 22b are projected,
A thin-walled folded portion 22c is formed in the base so as to extend in the width direction.

The locking holes 30 are formed on the outer regulating pieces 22a, 22b.
When the upper concrete form 11 is removed after the concrete is cast and hardened, the operation rod (not shown) is inserted, and the first regulating member 22 is easily cut off from the cut-off portion 22c by leverage. . The concave fitting groove 26 is the first
The first regulating member 22 is formed at the center of the regulating member 22 in the width direction, and the first regulating member 22 is engaged with the fitting groove 26 at the end opposite to the threaded portion 21 a of the retaining body 21. 21
It is fixed by welding.

The joining member 23 is formed of a synthetic resin in the shape of a truncated cone whose diameter gradually increases toward the outside. A screw hole 23a is formed in the center of the inside, and a boss 23b is formed in the center of the outside. Have been. Then, by screwing the screw hole 23 a into the screw portion 21 a of the holder main body 21, the joining member 23 is detachably attached to the holder main body 21. As shown in FIG. 3, when the spacing member 17 is attached between the inner and outer concrete forms 11, the joining member 23 is joined to the inner surface of the pattern plate 13.

The insertion member 24 is formed of a metal plate. A knurled shaft 27 protrudes from the base end thereof, and a slit 28 is formed at the front end thereof to extend in the longitudinal direction. Then, the knurled shaft 27 is press-fitted and crimped into the boss portion 23b of the joining member 23, so that the insertion member 2
4 is projected and fixed to the outer surface of the joining member 23.

Further, as shown in FIG.
4 is set to be smaller than the outer diameter D1 of the maximum diameter portion of the joining member 23. Then, as shown in FIG. 3, when the spacing member 17 is mounted between the inner and outer concrete forms 11, the insertion member 24 is attached to the pattern plate 1.
3 through the insertion hole 16 on the upper and lower concrete form 11
It is designed to be inserted into the gap 15 between them.

The second restricting member 25 is composed of a wedge member made of a metal plate. Then, as shown in FIG. 3, when the spacing member 17 is mounted between the inner and outer concrete forms 11, the second regulating member 25 is inserted into the slit 28 on the insertion member 24 to thereby The two regulating members 25 engage with the outer edges of the upper and lower concrete forms 11 located on the pattern plate 13 side.

Next, the operation of the above-described space holder for concrete formwork will be described. When forming a structure such as a high concrete wall, as shown in FIG. 1, a plurality of concrete forms 11 are connected in a longitudinal direction by connecting pins 12, and a plurality of steps are formed in a height direction. In a stacked state, they are arranged facing each other at a predetermined interval. When an uneven pattern such as a stone pattern is provided on the outer surface or inner surface of the structure, the pattern plate 13 is erected along the inner surface of the outer or inner concrete formwork 11.

In this case, in a state where the lower pair of concrete forms 11 are arranged to face each other, a pair of connecting members 14 are arranged on the concrete form 11 on the side where the pattern plate 13 is erected and arranged. The concrete formwork 11 is stacked on the upper part. Thereby, a predetermined gap 15 is formed at the joint between the upper and lower concrete forms 11. Then, in this state, the pattern plate 13 is erected and arranged along the inner surfaces of the upper and lower concrete forms 11.

Next, the insertion member 24 of the spacing member 17 is
It is inserted into the gap 15 between the upper and lower concrete forms 11 on the side of the pattern plate 13 through the insertion holes 16 on the pattern plate 13, and the first regulating member 22 of the spacing member 17 is connected to the opposite side of the pattern plate 13. It is placed on the lower concrete form 11.
Then, the joining member 23 of the spacing member 17 is joined to the inner surface of the pattern plate 13.

In this state, when the upper concrete form 11 is stacked on the lower concrete form 11 on the opposite side of the pattern plate 13, the regulating pieces 22a and 22b of the first regulating member 22 are moved to the inner and outer sides of the upper and lower concrete form 11. By engaging the edges, the position of those concrete forms 11 is regulated. Thereafter, when the second regulating member 25 is fitted into the slit 28 on the insertion member 24 of the spacing member 17, the second regulating member 25
Are engaged with the outer edges of the upper and lower concrete forms 11 on the pattern plate 13 side. And, between the second regulating member 25 and the joining member 23, the upper and lower concrete forms 1 on the pattern plate 13 side.
The position of 1 is regulated.

When concrete is poured between the concrete forms 11 in this state, a structure such as a high concrete wall is formed. Further, the pattern-formed surface 13b of the pattern plate 13 transfers an uneven pattern such as a rock shape to the outer surface or the inner surface of the structure. Then, an intermediate portion including the holder main body 21 of the spacing holder 17 is embedded in the concrete structure.

On the other hand, when the concrete form 11 is released after the formation of the concrete structure, first, the pattern plate 1
The upper concrete form 11 located on the side opposite to 3 is removed. In this state, the first regulating member 22 of the spacing member 17 is broken off at the breaking portion 22c, and the protruding portion of the first regulating member 22 from the concrete structure is removed. Thereafter, the lower concrete form 11 on the opposite side of the pattern plate 13 is removed.

Next, the second regulating member 25 is removed from the slit 28 of the insertion member 24. In this state, the upper and lower concrete forms 11 located on the pattern board 13 side are removed, and the pattern board 13 is released from the surface of the concrete structure. After that, the insertion member 24 and the joining member 23 are rotated, and the screw holes 23a of the joining member 23 are screwed off from the screw portions 21a of the holder main body 21, and the insertion member 24 and the joining member 23 are moved to the end portions of the holder main body 21. Remove from

Then, by removing the joining member 23 and filling the mortar into the recess formed on the surface of the concrete structure and repairing the surface of the concrete structure, the work of forming the concrete structure is completed. .

The effects exerted by the above embodiment will be described below. In the concrete form spacing device according to this embodiment, one end of the retainer body 21 can be engaged with the inner and outer side edges of the stacked upper and lower concrete forms 11 located on the opposite side of the pattern plate 13. One regulating member 22 is fixed. At the other end of the holder main body 21, an insertion member 24 that can be inserted between the stacked upper and lower concrete forms 11 located on the pattern board 13 side through the insertion holes 16 on the pattern board 13, A joint member 23 having a truncated cone shape that can be joined to the inner surface of the thirteen is detachably attached. Further, a second regulating member 25 that can engage with the outer edges of the stacked upper and lower concrete forms 11 located on the pattern plate 13 side is detachably attached to the tip of the insertion member 24.

For this reason, when forming a high-concrete structure such as a concrete wall, even when the pattern plate 13 is erected along the inner surface of the concrete formwork 11, the pattern plate 13 does not become an obstacle. In addition, at the joint between the upper and lower concrete forms 11 in the stacked state, the spacing holder 17 can be easily mounted between the inner and outer concrete forms 11. In the concrete form spacing device according to this embodiment, the width W1 of the insertion member 24 is equal to the outer diameter D of the joining member 23.
It is set to be smaller than 1. For this reason,
There is no need to form a large insertion hole 16 for inserting the insertion member 24 on the pattern plate 13, and it is possible to reduce a portion where the pattern is lost on the surface of the structure. In the spacing device for concrete formwork of this embodiment, the second regulating member 25 is formed of a wedge member that can be attached to and detached from the slit 28 on the insertion member 24. For this reason, the position of the concrete form 11 located on the pattern plate 13 side can be reliably regulated by a simple operation of driving the second regulating member 25 made of a wedge member into the slit 28 on the insertion member 24. -In the space | interval holder of the concrete formwork of this embodiment, the joining member 23 is formed with synthetic resin. For this reason, the possibility that the surface of the pattern plate 13 is damaged by joining the joining member 23 to the pattern plate 13 can be prevented, and the manufacturing cost can be reduced. -In the space holder of the concrete formwork of this embodiment, the holder main body 21 is formed of a metal rod, and the first regulating member 22 is formed of a metal plate. Then, the first restricting member 22 is welded and fixed to the holder main body 21 with one end of the holder main body 21 fitted in the fitting groove 26 on the first restricting member 22.

For this reason, the structure of the spacing member 17 is simple, a predetermined strength can be ensured, and the holding member body 21 and the first regulating member 22 are accurately positioned at predetermined positions. , And can be securely fixed without twisting or the like. In the spacing member of the concrete formwork of this embodiment, since the bent portion 21b of a horizontal horizontal shape is formed in the center of the holding member main body 21, the spacing member 17 is connected to the inside and outside concrete. When mounted between the molds 11, it is possible to prevent the vertical streaks 29 from contacting the holder main body 21. -In the concrete form spacing device of this embodiment, since the locking holes 30 are provided in the outer regulating pieces 22a and 22b, concrete is poured and the concrete is hardened after the concrete is hardened. When the frame 11 is removed, the first regulating member 22 can be easily cut off from the cut-off portion 22c by inserting an operation rod (not shown) into the locking hole 30.

The above-described embodiment can be embodied with the following modifications. As shown in FIG. 6, the bent portion 2 is formed at the intermediate portion of the holder main body 21 so that the holder main body 21 forms a deformed crank shape.
Forming 1b.

In the case of such a configuration, the holder main body 21
Can be prevented from contacting the vertical streak 29 .

[0036] & Patterns plate 13 erected disposed along the inner surface of the concrete form 11 positioned inside, be configured to form an uneven pattern on the inner surface of the structure such as a concrete wall.

A holder main body 21, a first regulating member 22,
The joining member 23, the insertion member 24, and the second regulating member 25
All are made of the same metal, or only the joining member 23 is made of aluminum.

In this case, it is possible to reduce the manufacturing cost of the spacing member 17 and to prevent the surface of the pattern plate 13 from being damaged. As a fixing structure of the first restricting member 22 to the holder main body 21, engagement holes are provided on both sides of an end of the holder main body 21, and a notch is provided at an inner end of the first restricting member 22, and the cut-off is provided. A structure in which the notch is engaged with the engagement hole of the holder main body 21 and welded.

Even with this configuration, the holder main body 21 and the first regulating member 22 are accurately positioned at predetermined positions,
It can be fixed securely without twisting or the like. -The attachment / detachment structure of the joining member 23 and the insertion member 24 with respect to the holder main body 21 is appropriately changed and configured, such as a structure for driving a pin.

Further, the technical idea grasped from the above embodiment will be described below. The space holding tool for a concrete formwork according to any one of claims 1 to 5, wherein the base end of the insertion member is a knurled shaft, and the knurled shaft is press-fitted into the joining member and caulked.

In this case, the insertion member can be securely fixed without rotating the insertion member with respect to the joining member. The spacing holder for a concrete formwork according to claim 5, wherein a male screw is formed at an end of the holder body, and a female screw hole into which a male screw of the holder body is screwed is formed in the joining member.

In this case, the holder main body can be easily and reliably integrated with the joining member. The interval between the concrete forms according to any one of claims 1 to 5, wherein the first restricting member is constituted by a pair of restricting pieces bent at upper and lower opposite diagonal positions. Holder.

In this case, the first regulating member of the spacing member can be non-rotatably fixed to the inner and outer side edges of the stacked upper and lower concrete forms located on the opposite side of the pattern plate.

[0044]

The present invention is configured as described above, and has the following effects. According to the first aspect of the present invention, when a structure such as a high concrete wall is formed, the pattern plate becomes an obstacle even when the pattern plate is erected along the inner surface of the concrete formwork. At the joint between the upper and lower concrete forms in the stacked state, an intermediate space retainer can be easily installed between the inner and outer concrete forms so as to avoid vertical streaks , ensuring the space between the concrete forms in the middle. Can be held.

According to the second aspect of the present invention, it is not necessary to form a large insertion hole for inserting the insertion member on the pattern plate, and the portion where the pattern is lost on the surface of the structure is reduced. be able to.

According to the third aspect of the present invention, the position of the concrete form located on the pattern plate side can be reliably regulated by a simple operation of driving the wedge member into the slit on the insertion member.

According to the fourth aspect of the present invention, it is possible to prevent the surface of the pattern plate from being damaged by joining the joining member to the pattern plate. According to the fifth aspect of the present invention, the structure of the spacing member is simple, a predetermined strength can be secured, and the holder body and the first regulating member are accurately positioned at the predetermined position. As a result, it is possible to reliably fix without twisting or the like.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a use state of a spacing member for a concrete formwork.

FIG. 2 is an exploded perspective view showing the spacing member in an enlarged manner.

FIG. 3 is a cross-sectional view of a main part showing a use state of the spacing member.

FIG. 4 is an enlarged sectional view taken along line 4-4 in FIG. 3;

FIG. 5 is a plan view showing a holder main body of the interval holder.

FIG. 6 is a plan view showing another example of the holder main body of the spacing holder.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 ... Concrete formwork, 13 ... Pattern board, 13b ... Pattern formation surface, 16 ... Insertion hole, 17 ... Spacing holding tool, 21 ... Main body of holding tool, 21a ... Screw part, 21b ... Bending part, 22 ...
1st regulation member, 22a, 22b ... regulation piece, 23 ... joining member, 23a ... screw hole, 24 ... insertion member, 25 ... 2nd regulation member, 26 ... fitting groove, 28 ... slit, W ... width, D1 ...
Outer diameter.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Katsushige Manabe 1-1-88 Oyodonaka, Kita-ku, Osaka-shi, Osaka Sekisui House Co., Ltd. (72) Inventor Shoya Suzuki 189 Sendanbayashi, Nakatsugawa-shi, Gifu Pref. (56) References JP-A 54-154629 (JP, U) JP-A 64-10153 (JP, U) JP-A 4-129258 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) E04G 17/065 E04G 9/10 101

Claims (5)

(57) [Claims] A plurality of concrete forms are connected in the longitudinal direction, and are stacked in the height direction, and are disposed facing each other at predetermined intervals on the inside and outside, and either one of the inside and outside concrete forms is arranged. A pattern board is erected along the inner surface of the frame, and at the joint of the stacked concrete forms, the space between the inner and outer concrete forms is maintained at the center of the concrete form spacing tool. One end of the retainer body, which has a bent portion formed in a horizontal horizontal shape or deformed crank shape, is attached to the inner and outer edges of the stacked upper and lower concrete formwork located on the opposite side to the pattern plate. An insert member that fixes the engageable first regulating member and can be inserted at the other end of the holder body between the stacked upper and lower concrete forms located on the pattern board side through the insertion holes in the pattern board. And the pattern board A second constraining member which is detachably attached to a frusto-conical joining member which can be joined to the inner surface of the upper surface, and which can be engaged with the outer edges of the stacked upper and lower concrete forms positioned on the pattern plate side at the tip of the insertion member. A spacing tool for concrete formwork with detachable components. 2. The concrete formwork spacing retainer according to claim 1, wherein the width of the insertion member is set to be smaller than the outer diameter of the joining member. 3. The concrete frame spacing device according to claim 1, wherein the second regulating member comprises a wedge member detachable from a slit on the insertion member. 4. The space holder for a concrete formwork according to claim 1, wherein the joining member is formed of a synthetic resin. 5. A state in which the holder main body is formed of a metal bar, the first regulating member is formed of a metal plate, and one end of the holder main body is fitted in a fitting groove on the first regulating member. The first regulating member is fixed to the holder body by welding.
A spacing device for a concrete formwork according to any one of claims 4 to 4.