JPH09137536A - Form for placing concrete - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the length or the height of a form according to the size of a concrete structure, and enable wire netting and the like for protecting mortar to be nailed on the surface of the concrete structure. SOLUTION: This formwork for placing concrete is constituted of form panel 11 provided with panel connecting fitting constructions 12 on the opposed end faces of upper/lower and front/rear of a square panel made of foaming polystyrene, supporting members 21 made of hard synthetic resin in which separator receivers 23 of narrow tablet shape are projectingly provided on the back of belt plate-like base plates 22, and the separator receiver 23 is provided with a plurality of pin holes 24 on the extreme end part, and separators 31 having connecting pins 33 on both end parts of bridge parts of specified length. A plurality of the base plates of the supporting members are spacedly by a specified distance fixedly secured outside the form panels 11, the extreme end parts of the separator receivers 23 are projected inside the form panels 11, the form panels 11 are standingly provided spacedly by a specified distance so as to be right and left in opposite to each other, and the connecting pins of the separators are inserted into the pin holes of the separator receivers opposite to each other, so as to connect together the right and left form panels 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete pouring formwork, and more particularly, it is easy to form the formwork and does not require removal of the formwork after the concrete is hardened. The present invention relates to a concrete pouring formwork that provides a structure excellent in heat insulation and sound insulation.

[0002]

2. Description of the Related Art Conventionally, a mold of this type has been made of a wooden panel or a metal plate, and was removed after the placed concrete was hardened. Further, in recent years, expanded polystyrene is used as a formwork panel, which is opposed to it at a predetermined interval and is previously integrated with a separator, or a formwork is formed by connecting the panels using a separator, and after concrete hardening. A method that does not remove the formwork has been proposed or implemented.

[0003]

However, according to the former removal type formwork, there is a drawback that the amount of work is increased due to the removal of the formwork after hardening of concrete and the construction cost is increased. Further, there is a drawback in that the work for raising or extending the formwork according to the size of the concrete structure is complicated. Also, among the latter non-removable formwork, in the method of using a formwork in which panels are assembled with a separator in advance, a vast space or space is occupied for storage and transportation,
Not only is the storage and transportation efficiency extremely poor, but it is also difficult to handle because of its bulkiness.
On the other hand, the method of connecting the panels with the separator to form the formwork does not have the problems of the above-mentioned assembly type, but the strength and dimensional accuracy are insufficient, and it is sufficient for the pressure when placing concrete. However, there are some regrets that the pressure cannot be used, the dimensions are changed by the pressure, and nailing cannot be performed when lathing. The present invention aims to improve the conventional formwork and eliminate such problems.

[0004]

In order to achieve the above object, the concrete placing form of the first invention has a panel connecting fitting structure on the upper and lower and front and rear facing end faces of a polystyrene foam rectangular panel. A supporting member made of a hard synthetic resin, in which at least one strip-shaped separator receiver is projectingly provided on the back surface of the frame panel and the strip-shaped substrate, and a pin hole or a connecting pin is provided at the tip of the separator receiver. And a separator provided with connecting pins or pin holes at both ends of a horizontal beam portion of a predetermined length, and a plurality of substrates of the supporting member are fixed to the outside of the formwork panel at predetermined intervals, The tip of the separator receiver is made to project inside the formwork panel, and the formwork panels are erected so as to be opposed to each other at predetermined intervals with the connecting pins or pin holes of the separator facing each other. It is the concatenation of the left and right formwork panels by inserting a separator receiving pin holes or connecting pins that. It is preferable that the separator is integrally formed in a Z shape or an X shape and has four connecting pins at each end.

The concrete pouring formwork according to the second aspect of the present invention comprises the separator according to the first aspect of the present invention, wherein a plurality of connecting pins or pin holes are provided on opposite long sides of a rectangular formwork body of a predetermined size. The present invention is the same as the first invention except that it is replaced with a frame-shaped separator provided.

The frame-shaped separator is preferably provided with at least one reinforcing member between its opposing long sides. In the fitting structure for panel connection of the form panel in both the first and second inventions, a convex portion provided on one of the opposing end surfaces and a concave portion provided on the other of the opposing end surface so as to be engageable with the convex portion. It is preferable that

[0007]

The first formwork is stored and transported with the separator removed and the left and right formwork panels separated. Therefore, the space required for storage and transportation can be small. At the construction site, the left and right formwork panels are erected by connecting them with a separator, and in order to correspond to the size of the concrete structure, a plurality of fitting structures are provided on the front and rear facing end faces of the formwork panels. Formwork panels are connected in the front-rear direction and extended to a predetermined length, and the formwork panels are stacked in multiple stages through a fitting structure provided on the upper and lower opposite end faces of the formwork panel.
Raise it to a specified height. Next, after reinforcing bars are laid between the left and right formwork panels, concrete is placed. After the concrete is hardened, it is not necessary to remove the formwork and it is used as it is as part of the concrete structure.

When mortar is applied to the surface of the concrete structure thus formed, the mortar reinforcing wire mesh (lath) is fixed to the substrate of the supporting member exposed on the surface of the formwork panel by nailing and fixed to the surface of the formwork panel. It may be stretched and mortar may be applied on the wire mesh.

Further, a Z-shaped or X-shaped integrally formed separator is used, and two pairs of separator receiving pin holes or connecting pins opposed to the connecting pins or pin holes are inserted to insert left and right molds. By connecting the panels, the left and right formwork panels are prevented from being displaced from each other in the anteroposterior direction before the concrete hardens, and the formwork dimensions are stabilized. Further, if the panel connecting fitting structure is formed of the convex portion and the concave portion that can be engaged with each other, the stacking and connection of the form panel can be performed easily and reliably.

Further, in the mold of the second invention, the separator in the first invention is replaced with a frame-shaped separator having higher rigidity, so that the rigidity of the mold is increased and
Forming is easy, but other actions and effects are first
It is the same as the invention of.

[0011]

Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to these embodiments.

Embodiment 1 This embodiment is a mold of the first invention, FIGS. 1 to 3 are front views, plan views and side views showing unit units of the mold, and FIG. 4 is an IV of FIG. FIG. 4 is an enlarged sectional view taken along line IV.

In these figures, 1 is a mold,
Formwork panel 11, support member 21, and separator 31
It is composed of The formwork panel 11 is made of expanded polystyrene square panels, and has panel connection fitting structures 12 on the upper and lower opposing end surfaces and the front and rear opposing end surfaces. The fitting structure 12 includes one protrusion 13 having a trapezoidal cross-sectional shape provided on one of the opposite end faces and one protrusion 13 having a trapezoidal cross-sectional shape provided on the other opposite end face so as to be engageable with the protrusion 13. And a recess 14. In addition, these convex portions 13
The recesses 14 and the recesses 14 are continuously formed as shown in the drawing, but the recesses are not necessarily limited thereto and may be discontinuously formed (not shown).

The support member 21 is an injection-molded body made of a hard synthetic resin, and as shown in FIG. 5, a pair of upper and lower strip-shaped separator receivers 23 are integrally formed on the back surface of the strip-shaped substrate 22 so as to project therefrom. Therefore, a pin hole 24 is provided at the tip of each separator receiver 23. The hard synthetic resin of the material is not particularly limited, for example, polyolefin resin such as polypropylene, vinyl chloride resin, polystyrene resin,
ABS resin etc. are illustrated. This support member 21 is shown in FIG.
As shown in FIG. 4, a plurality of substrates 22 are integrally molded with the mold panel 11, so that the substrates 22 are vertically fixed to the outside of the mold panel 11 with a predetermined space therebetween and the separators 23 The tip portion is projected inside the form panel 11.

As another fixing method of the supporting member 21, as shown in FIG. 6, a board mounting groove 15 having a trapezoidal cross section is provided on the outside of the mold panel 11, and the mold panel 11 is penetrated. Then, the through hole 16 for inserting the separator is inserted, and the cross-sectional shape of the substrate 22 is changed to the groove 15.
The base plate 22 is pushed into the concave groove 15 to be fixed, and at the same time, the separator receiver 23 is provided with the through hole 16
May be inserted into the mold frame panel 11 so that the tip end of the mold plate panel 11 projects inside, and if necessary, the back side of the substrate 22 may be bonded to the outside of the mold frame panel 11 with an adhesive (however, not shown). Omitted).

The separator 31 is made of the same hard synthetic resin or metal as the supporting member 21, and as shown in FIG.
Two connecting pins 23 are provided so as to project from both ends of the strip-shaped horizontal beam portion 32. When the separator 31 is made of a metal plate, as shown in FIG. 8, the connecting pins 33 may be formed at both ends of the horizontal beam portion 32 by partial punching with a press. In order to form the unit unit of the formwork 1 by the formwork panel 11, the support member 21 and the separator 31, as shown in FIG. 4, the formwork panels 11 are erected so as to face each other at a predetermined interval. Then, the connecting pins 33 of the separator 31 may be inserted into the pin holes 24 of the separator receiver 23 of the supporting member 21 facing each other to connect the left and right formwork panels 11.

At this time, when the left and right formwork panels 11 may be displaced from each other in the front-rear direction, the separators 31
The center part of the separator is connected and fixed with one connecting rod, or the connecting pin 33 of the separator 31 and the separator receiver 2 are connected.
It suffices if the cross-sectional shape of the No. 3 and the pin hole 24 is square (however, not shown). If the left and right formwork panels 11 may still be displaced in the front-rear direction with respect to each other, as shown in FIG. 9 or FIG.
Are integrally molded into a Z-shape or an X-shape, and 4 at each end of them.
It suffices to project individual connection pins 33, insert these connection pins 33 into the pin holes 24 of the two pairs of separator receivers 23 facing each other, and connect the left and right formwork panels 11.

In order to form a concrete structure using the formwork 1 of the unit unit having the above structure, first, as shown in FIG. 11, prepare a predetermined number of formwork 1 corresponding to the size of the concrete structure. Then, the convex portion 13 is pushed into the concave portion 14 of the fitting structure 12 provided on the front and rear facing end surfaces of the mold frame panel 11 to connect the mold frame 1 to a predetermined length, and at the upper and lower facing end surfaces of the mold frame panel 11. The recess 1 of the fitting structure 12 provided
The convex portion 13 is pushed into 4 to stack the formwork 1 at a predetermined height. Next, the reinforcing bars are arranged inside the formwork 1 and concrete is poured. After the concrete is hardened, the formwork 1 is used as it is as a part of the concrete structure without being removed. Although FIG. 11 shows an example in which the ends of the mold 1 are aligned, the strength of the joint can be increased by forming a zigzag shape in which the molds 1 are laterally displaced by a half width and stacked.

When applying mortar to the surface of the concrete structure thus obtained, the mortar reinforcing wire netting is exposed on the surface of the form panel 11 and the substrate 22 of the supporting member 21 is exposed.
It may be fixed by nailing and stretched, and mortar may be applied from above the wire mesh.

Embodiment 2 In this embodiment, as shown in FIG. 12, protrusions 23a are provided on the upper and lower sides of the separator receiver 23 of the support member 21 in the embodiment 1, and the protrusion 23a is formed on the formwork panel 11. The support member 21 is provided with the recess 11a to be fitted, and the support member 21 is connected to the form panel
1 by press-fitting the concave portion 11a and the convex portion 23a, respectively, to thereby form the support member 21 and the form panel 11
On the other hand, the external pressure receiving portions 31a are provided upright at both ends of the separator 31, and the connecting pin 33a is provided with a V-shaped crack, and the connecting pin 33a is closed with the V-shaped crack closed. The separator 31 is press-fitted into the pin hole 24 so that the separator 31 does not accidentally escape from the separator receiver 23.
For example, when filling the soil from the outside of the formwork 1 before placing concrete, the structure is constructed so as to sufficiently withstand this external pressure and not narrow the width between the formwork.

Embodiment 3 In this embodiment, as shown in FIG. 13, the pin hole of the separator receiver and the connecting pin 33 of the separator 31 are circular and the both ends of the separator 31 are arcuate as in Embodiment 1. When storing or transporting, the opposite molds are shifted in the length direction to reduce the space. When using such a mold, the shifted mold may be returned to the original state as shown in FIG. 2 and fixed by the above-mentioned connecting rod, the Z-shaped separator or the X-shaped separator described later.

Embodiment 4 This embodiment is a mold of the second invention, and FIG. 14 is a plan view showing a unit unit of the mold. In order to simplify the description, parts in the present embodiment, parts in the first embodiment, and parts that are the same as the parts in the first embodiment will be denoted by the same reference numerals.

In FIG. 14, reference numeral 1 denotes a mold, which is composed of a mold panel 11 and a supporting member 21 in the first embodiment, and a frame-shaped separator 41 which is a feature of the present embodiment.

The frame-shaped separator 41 is used for the supporting member 2
As shown in FIG. 15, a plurality of connecting pins 33 are provided on opposite long sides of a rectangular frame 42 having a predetermined size so as to project therefrom, as shown in FIG. In order to increase the rigidity of the rectangular frame 42, as shown in FIG. 16, at least one reinforcing member 43 is provided between the opposing long sides thereof.
May be provided.

In order to form the unit unit of the formwork 1 shown in FIG. 14, in the same manner as in the first embodiment, the formwork panels 11 are erected so as to face each other at a predetermined interval, and the frame-shaped separator 41 is provided. Of the support member 21 with the connecting pins 33 of the
The left and right formwork panels 11 may be connected by inserting them into the pin holes 24 of the separator receiver 23.

In the frame-shaped separator 41, since the rectangular frame 42 is provided with the plurality of connection pins 33, the plurality of connection pins can be inserted into the pin holes 24 of the support member 21 at once. Therefore, the work of forming the mold 1 is simplified. Further, since the rectangular frame 42 has a high rigidity, the form 1
The rigidity is increased and the dimensional stability is also increased.

The work of stacking and extending the formwork 1, the work of constructing a concrete structure, and the work of applying mortar to the surface of the concrete structure are exactly the same as in the first embodiment.

In the above embodiment, an example in which a pin hole is provided in the separator receiver and a connecting pin is provided in the separator has been shown. However, conversely, if a connecting pin and a pin hole are provided in the separator receiver, the same is true. . Further, the Z-shaped separator shown in FIG. 9 and the X-shaped separator shown in FIG. 10 are applied to, for example, the adjacent separators 31 shown in FIG. 2 to prevent the form 1 from shifting and wobbling. It can also be used as a fixing means.

When two upper and lower separator receivers are provided on the strip-shaped substrate 22, the strip-shaped substrate 22 may have a shape divided in the middle or a plurality of supporting members 21.
May be connected in a frame shape at the top and bottom respectively.
Further, if necessary, braces may be provided between the facing molds 1, and when the stacked molds may float during concrete pouring, for example, a separator may be fixed by tightening. . Furthermore, it is also possible to provide a reinforcing bar supporting portion on the separator or the separator receiver to facilitate the reinforcing work.

[0030]

As described above, according to the present invention, since the form panel is made of expanded polystyrene, it is not necessary to remove the form even after the set concrete is hardened, and the form is used for the concrete construction. It can be used as it is as a part. Therefore, the labor and cost required for removing the formwork are unnecessary, so not only is it possible to greatly save labor,
It is possible to construct a concrete structure excellent in heat insulation, cold resistance, dew condensation resistance, sound insulation, sound absorption, impact resistance and the like.

Further, the structure of the mold is simple, and the fitting structure provided on the mold panel allows the molds to be easily extended and stacked, so that the mold can be easily formed. Furthermore, after stacking the molds on one side, we arrange the bars, and then
Since it is possible to stack the other side, it is easy to stack and arrange the formwork.

Further, since the formwork panel and the separator are separated, the space for storage and transportation is small, and the handling is easy. Further, even in the case of being integrated in advance, the above effect can be exhibited by adopting a slidable structure as shown in FIG.

Further, since the substrate of the supporting member made of a hard synthetic resin is fixed to the outside of the form panel, and the strip-shaped separator receiver and the separator provided on the substrate are connected by a mechanical means such as uneven fitting, the concrete It withstands the pressure during driving sufficiently and has excellent dimensional stability.

Furthermore, since the substrate of the supporting member made of a hard synthetic resin is fixed to the outside of the form panel, it is possible to nail the substrate from the outside, which is convenient. For example, if you need to apply mortar to the surface of a concrete structure,
The mortar-protecting wire mesh may be fixed to the substrate by nailing and stretched, and the mortar may be applied from above the wire mesh.

Furthermore, in the second invention, since the frame-shaped separator in which a plurality of connecting pins are provided on the rectangular frame is used, the plurality of connecting pins can be inserted all at once into the pin holes of the supporting member. You can Therefore, the work of forming the mold is simplified and the workability is greatly improved. Further, since the rectangular frame body has a large rigidity, the rigidity of the form frame is also increased, and the pressure resistance and the dimensional stability are also improved.

[Brief description of the drawings]

FIG. 1 is a front view of a formwork showing an embodiment of the first invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG.

FIG. 5 is a perspective view of a support member.

FIG. 6 is a cross-sectional view showing another method of fixing the support member.

FIG. 7 is a perspective view of a separator.

FIG. 8 is a perspective view showing another embodiment of the separator.

FIG. 9 is a plan view of a Z-shaped separator.

FIG. 10 is a plan view of an X-shaped separator.

FIG. 11 is an explanatory diagram showing the extension and stacking state of the formwork.

FIG. 12 is a sectional view showing another embodiment of the first invention.

FIG. 13 is a plan view showing still another embodiment of the first invention.

FIG. 14 is a plan view of a mold showing an embodiment of the second invention.

FIG. 15 is a perspective view of a frame-shaped separator.

FIG. 16 is a perspective view showing another embodiment of the frame-shaped separator.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Formwork 11 Formwork panel 12 Fitting structure 13 Convex part (fitting structure) 14 Recessed part (fitting structure) 21 Supporting member 22 Strip plate substrate 23 Separator receiver 24 Pin hole 31 Separator 32 Horizontal beam part 33 Connection pin 41 Frame Shaped separator 42 Square frame body 43 Reinforcement member

Claims (6)

[Claims] 1. A formwork panel in which fitting structures for panel connection are provided on opposed end faces of upper and lower sides and front and rear sides of a square panel made of expanded polystyrene, and at least one strip-shaped separator receiver is projected on a back surface of a strip plate substrate. A hard synthetic resin support member having a pin hole or a connecting pin at the tip of the separator receiver, and a separator having a connecting pin or a pin hole at both ends of a horizontal beam having a predetermined length. Composed,
A plurality of substrates of the supporting member are fixed to the outside of the form panel at a predetermined interval, and the tip end of the separator receiver is made to protrude to the inside of the form panel, and the form panels are separated from each other by a predetermined interval. Standing upright so as to face each other, the connecting pin or pin hole of the separator and the pin hole or connecting pin of the separator receiver facing each other are inserted to connect the left and right formwork panels, and a concrete pouring mold. frame. 2. The concrete pouring formwork according to claim 1, wherein the separator is integrally formed in a Z shape and has four connecting pins or pin holes at each end. 3. The concrete pouring formwork according to claim 1, wherein the separator is integrally molded in an X shape and has four connecting pins or pin holes at each end. 4. A formwork panel having fitting structures for panel connection provided on the upper and lower and front and rear facing end faces of a foam polystyrene rectangular panel, and at least one strip-shaped separator receiver projecting from the back surface of the strip plate substrate. And a rigid synthetic resin support member having a pin hole or a connecting pin at the tip of the separator receiver, and a plurality of connecting pins or pin holes on the opposing long sides of a rectangular frame of a predetermined size. And a plurality of substrates of the supporting member are fixed to the outside of the form panel at a predetermined interval, and the tip end of the separator receiver is projected to the inside of the form panel. The frame panels are erected so as to be opposed to each other at right and left at predetermined intervals, and the connecting pin or pin hole of the frame-shaped separator and the pin hole or connecting pin of the separator receiver facing each other are inserted to the left. A concrete pouring formwork characterized by connecting the right formwork panels. 5. The concrete pouring formwork according to claim 4, wherein the frame-shaped separator is provided with at least one reinforcing member between opposing long sides thereof. 6. The fitting structure for panel connection of a formwork panel,
5. A convex portion provided on one of the facing end surfaces and a concave portion provided on the other of the facing end surface so as to be engageable with the convex portion.
The described concrete casting formwork.