JP6576898B2 - Unit formwork device - Google Patents

Description

  The present invention relates to a unit formwork apparatus used when constructing houses, buildings, factories, commercial facilities, public facilities, and other various concrete structures.

  As a formwork for placing concrete used to construct a wall of a concrete structure, for example, a structure in which a plurality of cell molds are connected vertically and horizontally to form a mold of a predetermined size is known. ing. In the patent document 1, the present applicant is a technique relating to a formwork apparatus constructed by connecting a plurality of formwork cell bodies vertically and horizontally, and a hollow of a three-dimensional rectangular part for support in which a metal plate is fixed to one side surface. A detachable connecting portion for detachably connecting a plurality of formwork cell bodies vertically and horizontally to a mold cell body provided with a plurality of reinforcing ribs fixed therein is provided via the detachable connecting portion. Proposals have been made to construct formwork wall bodies by connecting formwork cell bodies vertically and horizontally. In Patent Document 1, the attachment / detachment connecting portion of the cell body for formwork is provided with guide groove portions provided on the four side portions on the other side surface of the three-dimensional rectangular portion, and outward from the four sides on the other side surface guided by the guide groove portions. And a lock member that locks the connection state with other cell bodies for formwork that are adjacently arranged in the vertical and horizontal directions when moving forward and backward and projecting outward.

Japanese Patent No. 3013244

  The concrete casting form is required to have predetermined strength and rigidity so that it can withstand the pressure during concrete placing. However, in the formwork apparatus of Patent Document 1, the attachment / detachment connecting portion of the formwork cell body has a structure in which the formwork cell bodies are connected by engaging a flat plate-like lock member with the guide groove. The strength of the detachable connecting part is uneasy, and depending on the construction conditions, the assembled formwork may distort and deform or break so that it swells outward from the detachable connecting part without being able to withstand the pressure when pouring concrete. As a result, the concrete construction could not be performed accurately and reliably, and there was a risk that the usage scene would be limited. Therefore, development of a formwork apparatus with higher strength has been desired.

  The present invention has been made in view of the above-described conventional problems, and one object thereof is to sufficiently withstand the pressure when placing concrete even in a structure in which a plurality of cell molds are arranged side by side. An object of the present invention is to provide a unit formwork apparatus that can realize a high strength and is highly practical.

In order to solve the above-mentioned problems, the present invention is a unit mold apparatus for forming a wall surface mold of a concrete structure by closely connecting cell molds 12 as unit molds vertically and horizontally, and each cell mold 12 is rectangular. A concrete panel 16, a frame-like rib 18 erected in a rectangular frame shape along a rectangular outer shape on the concavity side of the concrete panel 16, and a rectangular longitudinal shape inside the square-frame-like rib 18. The short ribs 20 erected apart from each other in the direction intersecting with the short ribs 18b and the short ribs 18b of the frame-shaped rib 18 and the short ribs 20 so as to be fitted to the trunk of the same straight column. A fitting recess 22 provided in a straight line at a substantially central position on the short side such that the rectangular concrete panel 16 is divided into two along the long side. The bottom of the concrete panel 16 Set in the recess such that the copy surface, a short side of the frame-like rib 18 of a plurality of cells formwork 12 while being arranged over a plurality of cell-type frame 12 in a state of being connected side by side a plurality of cells formwork 12 A through-column member 14 that is detachably fitted to the fitting recess 22 of the rib 18b and the short rib 20, and when the concrete panel 16 of the plurality of cell molds 12 is fitted to the fitting recess 22 The fitting recess 22 includes a through-column member 14 that is in close contact with the surface, and the cross-section of the straight column is a square shape, and the through-column member 16 is a quadrangular column member that fits into the recess 22. The unit mold apparatus 10 is provided so that the outer surface side of the through pillar member 14 is substantially flush with the outer surface sides of the frame-like rib 18 and the short rib 20 in a state where the through pillar member 14 is fitted . The cell molds 12 adjacent in the vertical direction or the horizontal direction may be connected via a connecting means.

  Further, in a state in which the through pillar material 14 is fitted into the fitting recess 22, it is applied so as to intersect the through pillar material 14 from the outer surface side thereof, and the presser from the outer surface of the through pillar material 14 and the one end side reception of the separator 24 are received. It is good also as having the pressing material 26 used also.

  Further, it is a restraining member 46 applied from the outside across the two pressing members 26 arranged in parallel with a small interval 42, and a hole 48 for penetrating one end of the separator is drilled at a position corresponding to the interval 42. A restraining member 46 may be provided.

  According to the unit formwork apparatus of the present invention, the cell formwork as a unit formwork is a unit formwork apparatus that forms a molding wall surface mold of a concrete structure by closely connecting vertically and horizontally, and each cell formwork has a rectangular shape. A concrete panel, a frame-like rib erected in a rectangular frame shape along a rectangular outer shape on the concavity side of the concrete panel, and a direction intersecting with the length of the rectangle inside the rectangular frame-like rib Short ribs standing upright apart from each other, and fitting recesses provided in the same straight column phase so as to fit in the case of the same straight column on the short side ribs and short ribs of the frame-shaped rib, respectively And a through-column material that is detachably fitted across the short side ribs and the short ribs of the frame-like ribs of the plurality of cell molds in a state where the plurality of cell molds are connected side by side. Of concrete panels across multiple cell forms Since the through pillars are arranged on the front surface side, it is possible to realize a concrete formwork that is strong enough to securely hold the formwork forming surface against the pressure when placing concrete, and as a result, various concrete It can improve the practicality of construction work.

  In addition, the fitting recess is a rectangular recess, and the through-column material is a quadrangular column material fitted into the recess so that the through-column material can be easily attached to and detached from the cell mold. The mold work can be performed smoothly, and the area of the through pillar material that contacts the holding surface side of the cell mold frame is large, so that the mold frame strength can be further improved.

  Further, in a state where the through column material is fitted in the fitting recess, the press material is applied so as to intersect the through column material from the outer surface side thereof, and serves as a presser from the outer surface of the through column material and one end side support of the separator. Therefore, it is possible to reliably hold the through-column material fitted to a plurality of cell molds, and to withstand the pressure when placing concrete in the molds, and to accurately produce concrete. Can be installed.

  In addition, it is a restraining member applied from the outside across two pressing members arranged in parallel with a small interval, and a restraining member having a hole for penetrating one end of the separator is provided at a position corresponding to the interval. With this configuration, it is possible to reliably hold the through-column material fitted to a plurality of cell molds, to withstand the pressure during concrete placement in the molds, and to accurately cast the concrete. Construction work can be realized.

It is a perspective view of a 1st embodiment of a unit formwork device concerning this embodiment. It is the figure seen from the reserve side of the unit formwork apparatus of FIG. It is the sectional view on the AA line of the unit mold apparatus of FIG. FIG. 2 is a perspective view of one cell mold of the unit mold apparatus of FIG. It is the perspective view seen from the front side of the cell formwork of FIG. It is the rear view seen from the reserve side of the cell formwork of FIG. It is a side view of the cell formwork of FIG. It is explanatory drawing at the time of connecting the cell formwork of the unit formwork apparatus of FIG. It is explanatory drawing at the time of connecting the cell formwork of the unit formwork apparatus of FIG. It is explanatory drawing at the time of connecting the cell formwork of the unit formwork apparatus of FIG. It is a partial enlarged view of the rear view of 2nd Embodiment of the unit formwork apparatus which concerns on this embodiment. FIG. 12 is a perspective explanatory view showing a disassembled state of the unit formwork apparatus of FIG. 11. It is a partially expanded view of the perspective view of the unit mold apparatus of FIG.

  Embodiments of a unit mold apparatus of the present invention will be described below with reference to the accompanying drawings. The unit formwork apparatus according to the present invention is a formwork for placing concrete, for example, used when constructing a house, building, or other concrete structure, and can be used for forming unreinforced concrete or reinforced concrete. 1 to 9 show a first embodiment of a unit mold apparatus of the present invention. The unit mold apparatus 10 according to the present embodiment forms a wall surface mold of a concrete structure by closely connecting cell molds 12 as unit molds vertically and horizontally. As shown in FIGS. 1, 2, and 3, the unit mold apparatus 10 includes a plurality of cell molds 12 and a through pillar member 14 that engages with the cell molds 12.

  As shown in FIGS. 1, 4, 5, 6, and 7, each cell mold 12 includes a concrete panel 16, a frame-like rib 18 provided on the back side of the concrete panel 16, and a frame-like shape. A short rib 20 provided inside the rib 18, and a fitting recess 22 provided in the frame-shaped rib 18 and the short rib 20 are provided. In this embodiment, the concrete panel 16 is formed of, for example, a horizontally long rectangular plate member having a length of 450 mm and a width of 900 mm, and one surface side is a concrete contact surface side when placing concrete, and the other back side is a copy. It becomes the surface side. The concrete panel is made of, for example, a hard material such as plywood, and the surface side in contact with the concrete is preferably treated with a release agent or the like. In addition, the magnitude | size of the concrete panel 16 may be arbitrary. The concrete panel 16 has a hole 17 through which a separator 24 described later is passed.

  The frame-shaped rib 18 is erected in a rectangular frame shape at a right angle to the surface along the rectangular outer shape of the concrete panel 16 on the conservative surface side of the concrete panel 16. The frame-shaped rib 18 is made of, for example, a hard material such as wooden or metal, and is fixed to the concrete panel so that a rectangular column member having a rectangular cross section and one long side corresponds to each side of the rectangular shape. Each rib member of the frame-shaped rib 18 is fixed so that one side surface is in close contact with the back surface of the concrete panel 16 and a side surface perpendicular to the close side surface is perpendicular to the back surface of the concrete panel 16. . In the present embodiment, the frame-shaped rib 18 includes a long-side rib member 18a arranged along the long side of the concrete panel 16, and a short side of the concrete panel 16 orthogonal to the long-side rib member 18a. A short-side rib member 18b disposed. The long-side rib member 18a and the short-side rib member 18b of the frame-shaped rib 18 are set to have the same standing width from the side facing the concrete panel 16. The short side rib 18b is provided with a fitting recess 22 as described later. The frame-shaped ribs 18 are closely contacted by the frame-shaped ribs 18 of the cell mold frames 12 that are adjacent vertically or horizontally when the cell mold frames 12 are arranged in the vertical and horizontal directions, and their close frame shapes are connected via the connecting means 28. The ribs 18 are fastened. In this embodiment, the connection means 28 has a volt | bolt and a nut, for example. The long-side rib member 18a and the short-side rib member 18b of the frame-shaped rib 18 are each provided with a through-hole 29 that is pierced so that a bolt can be passed therethrough. Alternatively, the cell molds 12 adjacent to each other are fastened.

  The short ribs 20 are erected on the inside of the square frame-shaped frame-shaped ribs 18 so as to protrude outward from the reserved side surfaces of the concrete panel 16. The short rib 20 is provided, for example, in substantially the same manner as the short-side rib member of the frame-shaped rib, and is formed of a rectangular column member having a quadrangular cross section formed from a hard material such as wood or metal and being long on one side. The short ribs 20 are arranged inside the square frame-shaped frame-shaped ribs 18 so as to intersect the longitudinal direction of the rectangle orthogonally, and are arranged in parallel with the short-side ribs 18 b of the frame-shaped ribs 18. Further, the short ribs 20 are spaced apart from each other in a direction intersecting with the longitudinal length of the rectangular panel with a fitting recess 22 described later interposed therebetween. The standing width of the short rib 20 from the conserving side of the concrete panel 16 is set to be the same as the standing width of the short side rib member 18b of the frame-shaped rib 18 from the conserving side of the concrete panel 16, and the frame-shaped rib 18 And the outer surface side of the short rib 20 is formed to be substantially flush. The number and arrangement position of the short ribs 20 may be arbitrary, and may be set according to the size and required strength of the concrete panel 16.

  The fitting recess 22 is provided in each of the short side rib member 18 b and the short rib 20 of the frame-like rib 18. The formation position of the fitting recess 22 in the short side rib member 18b and the short rib 20 is aligned in phase on a straight line so as to be fitted to a straight pillar case made of a through pillar material 14 described later, that is, It is provided in the same straight column phase. In this embodiment, the fitting recessed part 22 is provided in the approximate center position of the up-down direction of the short side rib member 18b and the short rib 20, for example. The fitting recess 22 is, for example, a quadrangular recess having an opening on the outside, and the opening width and the recess bottom width are set to be substantially the same. In the present embodiment, the fitting recess 22 has, for example, an opening width of 120 mm and a recess depth of 60 mm. Further, the bottom of the fitting recess 22 is the back surface of the concrete panel 16. In addition, you may set arbitrarily the shape of a fitting recessed part 22, a position, a number, etc. according to the magnitude | size of the concrete panel 16, the conditions of a concrete structure, etc.

  In this embodiment, as shown in FIGS. 1, 2, and 3, for example, two mold wall bodies 13 formed by arranging a plurality of cell molds 12 vertically and horizontally and intimately connected by connecting means 28 are concrete. The cell molds 12 are connected to each other while maintaining a gap through the separator 24 with a gap for placement placed therebetween. The separator 24 is fastened by inserting both ends into through holes 17 formed in the concrete panel 16, placing a plastic cone 25 on the panel surface side, and a back side fastening member 32 on the back side. . In FIG. 1 and FIG. 2, for example, each formwork wall 13 is constructed by arranging a total of 20 cell formwork groups of 4 × 5 in length. In the drawing, for the sake of explanation, the side end portions of the gap between the two opposite formwork wall bodies 13 are configured to be closed by the side end concrete panels 30, but the present invention is not limited to this. It is good also as other arbitrary structures, such as the structure formed combining these cell mold frames 12, and the structure which combined several cell mold frames 12 so that an L-shaped corner may be included.

  As shown in FIGS. 1, 2, and 3, the through pillar member 14 has a short side rib member 18 b and a short side rib member 18 b of the frame-like ribs 18 of the plurality of cell molds 12 in a state where the plurality of cell molds 12 are connected side by side. The connecting means is detachably fitted to the fitting recesses 22 across the ribs 20. Therefore, the through pillar material 14 is simultaneously fitted across the plurality of cell molds 12 arranged in close contact with each other in the lateral direction, for example. In the present embodiment, the through pillar member 14 is constituted by, for example, a square steel pipe having a quadrangular cross section that is fitted into the fitting recess 22. In the present embodiment, the through pillar member 14 is formed by welding two square steel pipes having a square cross section of 60 mm × 60 mm, for example, in a state where their one side surfaces are in close contact with each other, and the cross sectional outer contour shape is 60 mm × 120 mm. It is provided as one prismatic material that becomes a square. The through pillar material 14 is set to, for example, 4 to 5 m so as to extend over the plurality of cell mold frames 12, and the length in the longitudinal direction of the through pillar material 14 is set to be sufficiently longer than the longitudinal length of one cell mold frame 12. Has been. When the through-column member 14 is fitted in the fitting recess 22, one side surface thereof is in close contact with the retaining surface side of the concrete panel 16, and the other outer surface side of the through-column member 14 is formed of the frame-shaped rib 18. The short side rib member 18b and the short rib member 20 are substantially flush with the outer surface side.

As shown in FIGS. 1, 2, and 3, the present embodiment has a pressing member 26 that presses the through-column material 14 from its outer surface in a state where the through-column material 14 is fitted in the fitting recess 22. . The pressing member 26 is connected to the separator 24 and integrally assembled with the cell mold 12 so as to receive one end side that protrudes from the holding surface side through the concrete panel 16 of the separator 24. In other words, the pressing member 26 is a pressing and connecting means that combines the pressing from the outer surface of the through-column member 14 and the one-side receiving of the separator 24. The pressing member 26 is made of, for example, a long member that is long on one side, and is disposed so as to intersect the through column member 14 fitted in the fitting recess. The pressing member 26 is connected to receive one end of the separator 24. The pressing member 26 is provided with a through-hole penetrating the extended one end side of the separator 24, and a pressing fastening member 34 is fastened to the outer surface side and integrally connected. The pressing member 26 is simultaneously connected to a separator 24 connected to a plurality of cell molds 12 arranged in a direction intersecting with the through pillars, that is, arranged in the vertical direction, and connects the cell molds 12 in the vertical direction. is doing. The presser member 26 may be configured to press the through column member 14 and may have any shape and size.

As shown in FIGS. 1, 2, and 3, a unit mold apparatus 10 formed by closely connecting a plurality of cell molds 12 vertically and horizontally is supported by a support mechanism 36, for example. The support mechanism 36 is disposed, for example, on the side of the mold wall 13, has one end connected to an upper and lower intermediate position of the pressing member 26 via a bolt nut or the like, and the other end fixed to the ground. It has the support member 40 connected with the bolt nut. The means for supporting the unit mold apparatus 10 may be, for example, to be self-supporting simply by being placed on the ground or the like, or the lower end of the pressing member 26 and other fixing members may be directly placed on the ground side. It may be fixed and self-supported, or may be fixed to foundation concrete or the like in which a cell mold or a pressing material is previously placed, or any other supporting structure.

  Next, the operation of the unit mold apparatus 10 according to the present embodiment will be described with reference to FIGS. 8, 9, and 10. As shown in FIG. 8, for example, a plurality of cell molds 12 are arranged in close contact with each other in the lateral direction, and the short-side rib members 18b of the frame-shaped ribs 18 are connected to each other via bolts and nuts that are connecting means 28. Conclude. The through-column material 14 is fitted into the fitting recesses 22 provided on the short-side rib members 18b and the short ribs 20 of the frame-shaped ribs 18 of the plurality of cell molds 12 arranged in the lateral direction and arranged in a straight line. . As shown in FIGS. 9 and 10, a holding-side connecting member 32 is fastened to one end side of the separator 24 that penetrates the concrete panel 16 of each cell mold 12, and the pressing material is applied from the outer surface of the through-column material 14. The presser fastening member 34 is fastened to the penetrating end of the separator 26 while penetrating one end of the separator, so that the cell mold frame 12, the through column member 14, the presser member 26, and the separator 24 are integrated. In FIG. 8, FIG. 9, and FIG. 10, for the sake of explanation, the cell form groups that are opposed to each other with a concrete placement gap are omitted. As shown in FIG. 1, similarly for the cell molds 12 arranged in the vertical direction, the through column member 14 is fitted, and the presser member 26 and the separator 24 are fastened and connected to form the wall 13. The unit mold apparatus 10 is constructed. Note that the long-side rib members 18a of the frame-shaped ribs 18 are tightly fastened to each other between the cell molds 12 adjacent in the vertical direction via the connecting means 28. Since the plurality of cell molds 12 are engaged with the column members 14 straddling the back side of the cell molds 12 at the same time, the molds are formed by being connected to each other against the pressure applied during concrete placement. High strength capable of maintaining the surface shape of the wall can be realized. As a result, it is possible to provide a highly practical formwork apparatus that can be widely used when forming walls of various concrete structures. After the concrete is placed and hardened, the presser material 26 is removed from the separator 24 by releasing the connection with the separator 24 in the reverse procedure to that described above, and the through pillar material 14 is detached from the fitting recess 22 to obtain the cell mold. 12 can be released from the concrete.

  Next, a second embodiment of the unit mold apparatus of the present invention will be described with reference to FIG. 11, FIG. 12, and FIG. The same configurations and the same members as those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIGS. 11, 12, and 13, in the present embodiment, the unit formwork apparatus 10-2 includes a plurality of cell formwork 12 and a through pillar material 14, as in the above embodiment. The configuration of the frame-shaped rib 18, the short rib 20, the fitting recess 22, the through pillar material 14, and the like of the cell mold 12 is the same as that in the above embodiment, but in this embodiment, the pressing member 26 that holds the through pillar material 14. The configuration is different.

  In the present embodiment, for example, two pressing members 26 are arranged in parallel with a small interval 42 compared to the width of the pressing member 26, and are mutually connected via a spacer 44 inserted in the interval 42. Connected and fixed. One end side of the separator 24 is penetrated into the gap 42 between the two pressing members 26, and the penetrating end protrudes from the pressing member 26. On the outer surface side of the two pressing members 26, a restraining member 46 is applied from the outside across the two pressing members 26. The restraining member 46 is made of, for example, a U-shaped plate member bent into a substantially U-shape and engages with the two pressing members 26 in a fitting manner. The restraining member 46 is provided with a hole 48 for penetrating one end of the separator 24 at a position corresponding to the interval 42 between the two pressing members 26, and is pressed with the one end side of the separator 24 penetrating. Fastened by the fastening member 34, the presser material is connected to the separator 24 in a state where the post column 14 is pressed. Also in the present embodiment, similar to the above-described embodiment, it is possible to achieve an effect such as realizing a high-strength formwork device.

  The unit formwork apparatus of the present invention described above is not limited to the configuration of only the above-described embodiment, and can be arbitrarily modified without departing from the essence of the present invention described in the claims. Also good.

  The unit formwork apparatus of the present invention is used, for example, when forming walls of houses, buildings, factories, and other concrete structures.

DESCRIPTION OF SYMBOLS 10 Unit formwork apparatus 12 Cell formwork 14 Through pillar material 16 Concrete panel 18 Frame-like rib 20 Short rib 22 Fitting recessed part 24 Separator 26 Holding material 42 Gap 44 Spacer 46 Restraint member

Claims (3)

A unit mold apparatus for forming a wall surface mold of a concrete structure by closely connecting cell molds as unit molds vertically and horizontally,
Each cell formwork is
A rectangular concrete panel,
A frame-like rib erected in a rectangular frame shape perpendicular to the surface along the rectangular outer shape on the concavity side of the concrete panel;
Short ribs erected apart from each other in the direction intersecting the long side of the rectangle inside the rectangular frame-shaped rib;
The short side of the frame-shaped rib that divides the rectangular concrete panel into two along the long side with the same straight column phase so that each of the short side rib and the short rib of the frame-like rib is fitted in the same straight column body circumference. And a fitting recess provided in a straight shape at a substantially central position of
The fitting recess is set as a recess whose bottom is the retaining surface of the concrete panel,
A plurality of cell molds arranged side by side and arranged across a plurality of cell molds, and are detachably fitted into the fitting recesses of the short ribs and short ribs of the frame ribs of the plurality of cell molds. A through-column material to be worn, including a through-column material closely attached to a retaining surface of a concrete panel of a plurality of cell molds when fitted into a fitting recess;
The fitting recess has a rectangular cross section of the straight column, and the through column material is a cross-sectional quadrangular column material fitted into the recess,
A unit formwork apparatus, characterized in that the outer surface side of the through pillar material is substantially flush with the outer surface sides of the frame-like rib and the short rib in a state where the fitting recess and the through pillar material are fitted . In a state where the through pillar material is fitted into the fitting recess, it is applied so as to intersect the through pillar material from the outer surface side thereof, and a presser material that serves both as a presser from the outer surface of the through pillar material and one end side support of the separator, The unit formwork apparatus according to claim 1, comprising: A constraining member applied from the outside across two pressing members arranged in parallel with a small interval, and a constraining member having a hole for penetrating one end of the separator is provided at a position corresponding to the interval. The unit formwork apparatus according to claim 1 .

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