JP2017203354A - Form presser tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a form presser tool with a simple structure and at a low cost which can be reused.SOLUTION: A form presser tool 1 for pressing a form 100 having a flange 102 which is composed of an extension part 102A extending in a direction orthogonal to a damming surface 101A and a rib 102B extending in parallel to the damming surface 101A from the extension part 102A, at the bottom edge of a sheathing board part 101 forming the damming surface 101A for damming up ready mixed-concrete, is provided with a press part 10 in face-contact with the top face of the extension part 102A for pressing, a straddling part 20 which rises upward from the press part 10, straddles the rib 102B and which falls down to a fixing surface 103 to which the form presser tool 1 is fixed, a fixed part 30 extending from the straddling part 20 while facing the fixing surface 103 and fixed to the fixing surface 103 by driving nails, and a rib abutting part 40 extending toward the side face of the rib 102B straddled by the straddling part 20 and abutting on the side face of the rib 102B.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a formwork pressing tool for fixing a formwork used when forming a concrete foundation such as a building.

  A formwork is used when forming a rising portion of a concrete foundation such as a building, particularly a concrete foundation. A general formwork has a dam plate portion that forms a rectangular damming surface that dams ready-mixed concrete, and has flanges at the lower end, upper end, right end, and left end of the dam plate portion. Further, the flanges at the lower end and the upper end of the dam plate portion are generally composed of an extending portion extending in a direction orthogonal to the damming surface and a rib extending in parallel with the damming surface from the extending portion (patent) Reference 1).

  When the concrete foundation is constructed, a plurality of molds with the damming surfaces facing each other are continuously arranged, and the gaps are formed in the rising space formed by the respective damming surfaces between the continuous molds. Concrete is filled. After the ready-mixed concrete is solidified, each formwork is removed, and a concrete foundation having a rising portion is completed.

  Conventionally, when arranging a plurality of such molds, directly nailing the lower end flange of the mold form, or pressing the lower end flange with a plywood etc. The mold is fixed so that it does not move. Moreover, it may be fixed using a formwork holding member as described in Patent Documents 1 and 2, for example.

Japanese Patent Laying-Open No. 2006-3476 Japanese Patent Laid-Open No. 10-61181

  However, when directly nailing the flange at the lower end of the mold as described above, there is a problem that it is difficult to perform the nailing operation because the width of the flange is narrow. In addition, when pressing the flange at the lower end with a piece of wood, there is a rib at the tip of the flange extension, so the piece of wood may become slanted and the formwork may be displaced without being fully pressed down. is there.

  Moreover, since the structure of the mold holding member as described in Patent Documents 1 and 2 is very complicated, there is a problem that the cost is increased. Moreover, since these formwork holding members are buried by the rising portion of the concrete foundation, there is a problem that they cannot be reused.

  Therefore, an object of the present invention is to provide a mold retainer that has a simple structure, is inexpensive, and can be reused.

  The formwork pressing tool of the present invention has an extending portion extending in a direction perpendicular to the damming surface at the lower end of the dam plate portion that forms a damming surface for damming ready-mixed concrete, and a damming surface from the extending portion. A mold holding tool for holding a mold having a flange composed of parallel extending ribs, a presser part that touches and presses the upper surface of the extension part on the surface, and a mold that rises upward from the presser part and straddles the rib. A straddling part that descends to a fixing surface that fixes the frame pressing tool, a fixing part that extends from the striding part to face the fixing surface, is fixed to the fixing surface by nailing, and extends toward a side surface of the rib that is straddled by the straddling part. And a rib contact portion that contacts the side surface of the rib.

  Further, in the mold fixing method of the present invention, the mold holder is arranged so that the extending portion of the flange of the mold frame is pressed by the pressing portion in a state where the rib of the flange of the mold frame is straddled by the straddling portion, It includes fixing to a fixing surface by nailing to a fixing part.

  The formwork pressing tool of the present invention is fixed to the fixed surface by pressing the extension part of the flange of the formwork with the holding part while straddling the rib of the flange of the formwork with the straddling part, and nailing to the fixing part. can do. At this time, since the rib contact portion is in contact with the side surface of the rib, the mold holding member is positioned by the side surface of the rib, and thus the mold frame is firmly fixed without shifting to the fixed surface.

  Here, it is desirable that the fixing portion has a guide portion that guides the tip of the nail driving portion of the nail driving device. As a result, when nailing using the nailing device, it is possible to easily position and nail by guiding the tip of the nailing portion of the nailing device against the guide portion.

  Further, it is desirable that the fixing portion has beads extending radially from the guide portion. Thereby, since the strength of the fixing portion fixed to the fixing surface by nail driving increases, the deformation of the fixing portion can be prevented and the displacement of the mold can be further prevented.

  In addition, the fixing portion is arranged in a direction parallel to the damming surface with respect to the first hole and the first hole through which the head of the nail to be nail cannot pass and the head of the nail can pass through. It is desirable to have a second hole, and a hole connecting portion that allows the body portion of the nail to pass therethrough and cannot pass the head portion of the nail, and connects the first hole and the second hole. As a result, the mold retainer fixed to the fixed surface by sliding into the first hole is slid in the direction parallel to the blocking surface, and the head of the nail is removed from the second hole while leaving the nail on the fixed surface. It can be easily removed by passing it through.

  The rib contact portion is preferably a flat plate extending upward from both ends of the fixing portion in the direction in which the rib extends and further extending toward the rib. As a result, the strength in the direction perpendicular to the direction in which the ribs of the fixing portion extend is increased, deformation in this direction can be further prevented, and the formwork pressing tool can be positioned on the side surface of the rib with a simple structure. Become.

  Moreover, it is desirable that the formwork pressing tool of the present invention has a flange portion that rises upward from an end portion on the opposite side to the straddling portion of the fixed portion and further extends to the opposite side to the straddling portion. As a result, the strength of the fixing portion in the direction in which the ribs extend is increased, and deformation in this direction can be further prevented, and when the mold retainer of the present invention is removed after the concrete foundation is formed, It becomes possible to insert a rod-shaped tool such as the like and lift it upward by the lever principle to easily remove it.

  Moreover, as for a collar part, it is desirable to have a bead extended in the direction where a rib extends. As a result, the strength of the ribs in the extending direction of the ribs is further increased, and deformation of the hooks when a bar-like tool such as a bar is inserted below the hooks and lifted upward can be prevented.

(1) A presser part that comes into contact with and presses the upper surface of the extension part, a straddle part that rises upward from the presser part and goes down to a fixing surface that fixes the mold presser across the rib, and a fixing surface from the straddle part And a rib part that extends toward the side surface of the rib that is straddled by the straddling part and that abuts against the side surface of the rib. Thus, it is possible to fix firmly to the fixing surface without shifting, and it is possible to obtain a mold holder that has a simple structure, is inexpensive, and can be reused.

(2) With the structure in which the fixed part has a guide part that guides the tip of the nail driving unit of the nail driving device, it is possible to guide the nail driving device tip of the nail driving device with the guide part, and to easily position and nail it. And workability is good.

(3) With the configuration in which the fixing portion has beads extending radially from the guide portion, deformation of the fixing portion can be prevented, and displacement of the mold can be further prevented.

(4) The fixing portion is disposed in a direction parallel to the damming surface with respect to the first hole and the first hole through which the head of the nail to be nail cannot pass and the head of the nail can pass through. A first hole having a hole connecting portion that connects the first hole and the second hole; Easily slide the mold retainer fixed to the fixed surface by nailing into the hole in the direction parallel to the damming surface and pass the head of the nail through the second hole while leaving the nail on the fixed surface. Can be removed.

(5) The rib contact portion is a flat plate extending upward from both ends of the fixing portion in the direction in which the rib extends and further extending toward the rib. Can be further prevented, and the frame presser can be positioned on the side surface of the rib with a simple structure.

(6) The structure having the flange portion that rises upward from the end portion on the opposite side to the straddling portion of the fixing portion and further extends to the opposite side to the straddling portion can further prevent deformation in the direction in which the ribs of the fixing portion extend, and concrete After the foundation is formed, the formwork pressing tool of the present invention can be easily removed.

(7) With the configuration in which the collar portion has a bead extending in the direction in which the rib extends, it is possible to prevent deformation of the collar portion when a bar-like tool such as a bar is inserted below the collar portion and lifted upward.

It is a perspective view of the formwork pressing tool in the embodiment of the present invention. It is a top view of the formwork pressing tool of FIG. It is a front view of the formwork pressing tool of FIG. It is IV-IV sectional drawing of FIG. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. It is sectional drawing which shows the use condition of the formwork pressing tool in this embodiment. It is a figure explaining another removal method of the formwork holder in this embodiment, Comprising: (a) is a top view which shows the state before a slide, (b) is a top view which shows the state after a slide. (A)-(d) is a top view which shows another shape of a guide part, (e) is EE sectional drawing of (a). (A)-(d) is a top view which shows another shape of a guide part, (e) is EE sectional drawing of (a). (A) is a top view which shows another shape of a guide part, b) is BB sectional drawing of (a).

  FIG. 1 is a perspective view of a mold presser according to an embodiment of the present invention, FIG. 2 is a plan view, FIG. 3 is a front view, FIG. 4 is a sectional view taken along line IV-IV in FIG. V sectional view, FIG. 6 is a VI-VI sectional view of FIG. 2, FIG. 7 is a sectional view showing a use state of the mold retainer in the present embodiment, and FIG. 8 is another removal of the form retainer in the present embodiment. It is a figure explaining the method, Comprising: (a) is a top view which shows the state before a slide, (b) is a top view which shows the state after a slide.

  As shown in FIG. 7, the mold retainer 1 according to the present embodiment extends at a lower end of a dam plate portion 101 that forms a damming surface 101A that dams ready-mixed concrete in a direction orthogonal to the damming surface 101A. The mold 100 having the flange 102 including the portion 102A and the rib 102B extending in parallel with the blocking surface 101A from the extending portion 102A is pressed against the fixing surface 103 and fixed.

  As shown in FIGS. 1 to 6, the mold retainer 1 includes a presser portion 10 that presses the upper surface of the extending portion 102 </ b> A of the flange 102 in contact with the surface, a straddling portion 20 that straddles the rib 102 </ b> B of the flange 102, and a fixed portion. In order to insert a rod-shaped tool T2 such as a bar or the like downward into the fixing portion 30 that is fixed to the surface 103 by nailing and fixing, the rib contact portion 40 that contacts the side surface of the rib 102B of the flange 102, and the upward movement. It has the collar part 50 of this.

  The holding portion 10 is a flat plate that comes into surface contact with the upper surface of the extending portion 102 </ b> A between the rib 102 </ b> B of the flange 102 and the weir plate portion 101. The straddle portion 20 extends from the presser portion 10 toward the fixed portion 30 side obliquely upward, the top plate portion 22 extending in the horizontal direction from the upper end of the vertical wall portion 21, and the fixed portion 30 toward the presser portion 10. It is comprised from the standing wall part 23 which stands | starts up diagonally upward, has a shape which stands | starts up from the press part 10 and descends to the fixed surface 103 across the rib 102B.

  The fixing portion 30 is a portion that extends from the straddling portion 20 to face the fixing surface 103 and is fixed to the fixing surface 103 by nailing. The fixed portion 30 is formed with a guide portion 31 for guiding a nail driving portion tip T1 (see FIG. 7) of the nail driving device. The nail driving device is a device for driving a nail N from a cylindrical nail portion tip T1 by gas pressure. The guide portion 31 is a circular concave portion formed by raising the periphery in a ring shape so that the nail portion tip T1 fits.

  In the center of the guide portion 31, a body portion N1 of the nail N penetrates, and a first hole 32A having a size that the head portion N2 cannot pass is formed. Further, a second hole 32B having a size capable of passing the head N2 of the nail N is formed in the direction parallel to the blocking surface 101A with respect to the first hole 32A. The first hole 32A and the second hole 32B are connected by a hole connecting portion 32C having such a size that the body portion N1 of the nail N can pass through and the head portion N2 of the nail N cannot pass through. The fixed portion 30 is formed with beads 33 that extend radially from the guide portion 31.

  The rib contact portion 40 is a flat plate that extends upward from both end portions (upper and lower end portions in FIG. 2) of the fixing portion 30 in the extending direction of the rib 102B, and further extends toward the rib 102B. The rib contact portion 40 extends toward the side surface of the rib 102B straddled by the straddling portion 20, and contacts the side surface of the rib 102B. When the rib 102B is sandwiched between the rib abutting portion 40 and the standing wall portion 21 of the straddling portion 20, the mold retainer 1 is positioned.

  The flange portion 50 is a flat plate that rises upward from an end portion on the opposite side to the straddling portion 20 of the fixed portion 30 and further extends to the opposite side of the straddling portion 20. The flange 50 has a bead 51 extending in the direction in which the rib 102B extends. A gap 52 is formed between the flange portion 50 and the fixed surface 103 for inserting a bar-like tool T2 such as a bar downward during removal.

  As shown in FIG. 7, the mold retainer 1 having the above-described configuration brings the presser 10 into surface contact with the upper surface of the extending portion 102 </ b> A of the flange 102 of the mold 100 when the mold 100 is installed. The nail N is driven into the first hole 32 </ b> A of the fixing portion 30 in a state where the rib 102 </ b> B is straddled by the straddling portion 20, thereby fixing the fixing surface 103. At this time, the rib contact portion 40 is in contact with the side surface of the rib 102B, and the rib 102B is sandwiched between the rib contact portion 40 and the standing wall portion 21 of the straddling portion 20, whereby the formwork pressing tool 1 is positioned. Therefore, the mold frame 100 is firmly fixed to the fixing surface 103 without shifting.

  Further, when the nail N is driven, the nail driving tip T1 of the nail driving device is fitted into the guide portion 31 of the fixed portion 30 so that the nail driving tip T1 can be guided to the guide portion 31 and can be simplified. It is possible to position and nail, and work is easy. Further, when the mold 100 is removed, a bar-shaped tool T2 such as a bar is inserted into the gap 52 below the collar portion 50, and the tool 2 is lifted upward by the lever principle, so that the mold presser 1 Can be easily removed together with the nail N.

  Further, as shown in FIGS. 8A and 8B, the mold retainer 1 according to the present embodiment slides the nail N in the first hole 32A by sliding it in a direction parallel to the blocking surface 101A and in the horizontal direction. It is also possible to easily remove the head N2 of the nail N from the second hole 32B with the nail N remaining on the fixed surface 103 through the hole connection portion 32C. In this case, since the eaves part 50 is not lifted by the tool T2 such as a bar, the deformation of the formwork pressing tool 1 can be prevented.

  Moreover, since the formwork pressing tool 1 in the present embodiment has the beads 33 extending radially from the guide portion 31 in the fixing portion 30, the strength of the fixing portion 30 fixed to the fixing surface 103 by nailing is increased. The deformation of the fixing part 30 is prevented. Therefore, it is possible to further prevent the mold 100 from being displaced due to the deformation of the fixing portion 30. In addition, the shape of the bead 33 is not limited to the shape shown in FIG.

  Moreover, although the guide part 31 in this embodiment is a circular concave part formed by raising the periphery in a ring shape so that the nail driving part tip T1 fits, it may have another shape. 9A and 9B are plan views showing other shapes of the guide portion, and FIG. 9E is an EE cross-sectional view of FIG. The guide portion only needs to be shaped so that the tip of the nail driving portion T1 is fitted and not displaced, and as shown in FIGS. 9A to 9D, the periphery is polygonal so as to surround the tip of the nail driving portion T1. As shown in FIGS. 10 (a) to 10 (d), it is possible to form three or more portions around the nail driving portion tip T1.

  Fig.11 (a) is a top view which shows another shape of a guide part, The figure (b) is BB sectional drawing of the figure (a). The guide portion shown in FIG. 11 is formed by partially cutting and raising the periphery so as to surround the nail driving portion tip T1. Even in the guide portion as shown in FIG. 9 to FIG. 11, the nailing tip T1 can be guided by the guide portion and can be easily positioned and nailing, as described above, and the operation becomes easy. .

  Further, the mold retainer 1 according to the present embodiment is a flat plate in which the rib contact portion 40 extends upward from both ends of the fixing portion 30 in the extending direction of the rib 102B and further extends toward the rib 102B. The strength in the direction orthogonal to the direction in which the 30 ribs 102B extend increases, and deformation in this direction is further prevented.

  The mold retainer 1 having the above-described configuration includes a presser portion 10, a straddling portion 20, a fixing portion 30, a rib contact portion 40, and a flange portion 50, for example, a single iron plate, a galvanized steel plate or a stainless steel plate having a thickness of 1 to 4 mm. It is possible to form by pressing, and the mold pressing tool 1 in this embodiment can be manufactured at low cost. In particular, the rib abutting portion 40 can be formed on the side surface of the rib 102B with a simple structure with high accuracy because the cut surface of the steel plate can be abutted against the rib 102B by bending both ends of the fixed portion 30. The frame pressing tool 1 can be positioned.

  Moreover, since the collar part 50 of the formwork holder 1 according to the present embodiment has a structure that rises upward from the end of the fixing part 30 and extends further outward, the strength of the fixing part 30 in the extending direction of the rib 102B increases. The deformation in this direction is further prevented. Further, since the flange 50 has a bead 51 extending in the extending direction of the rib 102B, the strength of the extending direction of the rib of the flange 50 is increased, and a bar-like tool T2 such as a bar is provided below the flange 50. The deformation of the collar part 50 at the time of insertion and lifting upward is prevented.

  The formwork pressing tool of the present invention is useful as an instrument for fixing a formwork used when, for example, forming a concrete foundation such as a building. In particular, the structure is simple, the cost is low, and it can be reused. It is suitable as a formwork pressing tool capable of

DESCRIPTION OF SYMBOLS 1 Formwork holder 10 Holding part 20 Crossing part 21 and 23 Standing wall part 22 Top plate part 30 Fixing part 31 Guide part 32A 1st hole 32B 2nd hole 32C Hole connection part 33 Bead 40 Rib contact part 50 Ridge part 51 Bead

Claims (6)

At the lower end of the dam plate portion that dams the ready-mixed concrete, an extension portion extending in a direction perpendicular to the damming surface and a rib extending in parallel with the damming surface from the extension portion A mold presser for pressing a mold having a flange,
A presser part that comes into contact with and presses the upper surface of the extension part;
A straddle part that rises upward from the presser part and descends to a fixing surface that fixes the formwork pressing tool across the rib;
A fixing portion extending from the straddling portion to face the fixing surface and fixed to the fixing surface by nailing;
A formwork pressing tool having a rib abutting portion that extends toward the side surface of the rib straddled by the straddling portion and abuts on the side surface of the rib.   The formwork pressing tool according to claim 1, wherein the fixing portion has a guide portion that guides a tip of a nail driving portion of a nail driving device.   The fixing portion has a first hole through which a head of the nail to be nailed cannot pass, and a head of the nail can pass through, and is parallel to the blocking surface with respect to the first hole. And a hole connecting portion for connecting the first hole and the second hole, wherein the second hole is disposed, the body portion of the nail is allowed to pass therethrough, and the head portion of the nail is not allowed to pass therethrough. Item 3. A form holder according to item 1 or 2.   The form retainer according to any one of claims 1 to 3, wherein the rib contact portion is a flat plate extending upward from both ends of the fixed portion in the extending direction of the rib and further extending toward the rib. Ingredients.   The formwork pressing tool according to any one of claims 1 to 4, further comprising a flange portion that rises upward from an end portion on the opposite side to the straddling portion of the fixing portion and further extends to the opposite side of the straddling portion. At the lower end of the dam plate portion that dams the ready-mixed concrete, an extension portion extending in a direction perpendicular to the damming surface and a rib extending in parallel with the damming surface from the extension portion A mold presser for pressing a mold having a flange,
A presser part that comes into contact with and presses the upper surface of the extension part;
A straddle part that rises upward from the presser part and descends to a fixing surface that fixes the formwork pressing tool across the rib;
A fixing portion extending from the straddling portion to face the fixing surface and fixed to the fixing surface by nailing;
Extending toward the side surface of the rib straddled by the straddling portion, a mold pressing member having a rib abutting portion that abuts on the side surface of the rib straddles the rib of the flange of the mold frame by the straddling portion A mold fixing method comprising: disposing an extension of the flange of the mold by the pressing part in a state, and fixing to the fixing surface by nailing to the fixing part.

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