JP2006112090A - Concrete placing form - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a concrete placing form allowing an easy change in the thickness of a concrete wall to be placed, designed in a space-saving manner so as to be convenient to be carried, and having excellent workability in a construction site. <P>SOLUTION: The concrete placing form is provided with a pair of form panels 2, 2 disposed parallel to face each other, and a connecting mechanism 3 having a first arm 32 with at least one end mounted to the inner surface of one form panel 2 so as to be turnable, a second arm 33 with one end mounted to the inner surface of the other form panel 2 so as to be turnable and with the other end connected to the other end of the first arm 32 so as to be turnable, and a fixing member 42 for fixing the width of a clearance between the pair of form panels 2, 2. The first arm 32 and the second arm 33 are formed with mounting holes 32d, 33d for mounting the fixing member 42. The fixing member 42 with a length corresponding to the clearance between the mounting holes 32d, 33d is mounted, and the connecting mechanism 3 can adjust the width of the clearance between the pair of form panels 2, 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a concrete casting form, and more particularly to a concrete placing form provided with a connecting mechanism that is connected to two form panels and separates the two form panels from each other by a predetermined distance.

  Conventionally, a concrete wall used in a building is arranged so that two wall materials used as a formwork are separated from each other, and concrete is placed in a gap formed between the two wall materials to harden the concrete. Later, it was formed by removing the wall material.

  However, in such a conventional construction method, it takes time and effort to remove the formwork, and a space for disposing the removed formwork must be secured.

  In view of this, a method has been proposed in which the formwork is left after the concrete is cast and a concrete wall is formed by combining the formwork. In this method, the formwork will serve as a heat-insulating material even after the concrete is placed by using hard foam plastic, concrete block, plastic insulation, etc. as the formwork. Therefore, it is easy to construct a highly airtight and highly insulated building.

  Moreover, in the above-mentioned formwork combination concrete method, in order to separate the two wall materials used as the formwork into a predetermined width, the two wall materials are installed on the two wall materials and the widths of the two wall materials are made constant. A connecting member is used, and this connecting member is installed in a space where concrete is placed. As this connecting member, for example, a member that has been devised to easily change the thickness of a concrete wall has been proposed (see, for example, Patent Document 1).

JP-A-8-246579

  By the way, the thickness adjusting tool of the wall construction unit described in Patent Document 1 and the thickness adjusting method using the same are composed of a connecting member and a formwork panel as separate members. Requires assembly work for formwork panels. That is, it can be said that the work processes of field workers are reduced when the formwork panel and the connecting member having the configuration described in Patent Document 1 are used, compared to the conventional method of placing concrete and removing the formwork after hardening.

  However, the connecting member described in Patent Document 1 involves a cutting operation and the like when performing the thickness adjustment of the placed concrete, and the operation becomes complicated.

  Therefore, in view of the above-mentioned problems, the concrete placement form according to the present invention can easily change the thickness of the concrete wall to be placed, and is a space-saving design convenient for transportation, An object of the present invention is to provide a concrete casting form having excellent workability at a construction site.

  In order to solve the above-mentioned problems, a concrete casting form according to the present invention includes a pair of form panels arranged in parallel to each other and one form on the one side. A first arm that is attached to the other formwork panel, at least one end of which is pivotally attached to the inner surface of the one formwork panel, and one end of the other formwork panel. A second arm that is rotatably attached to the inner surface and has the other end rotatably connected to the other end of the first arm, and a fixing member that fixes the width of the gap between the pair of formwork panels And a connecting mechanism. The first arm and the second arm are provided with a mounting hole for mounting the fixing member, the fixing member having a length corresponding to the gap of the mounting hole is mounted, and the coupling mechanism is The gap width between the pair of formwork panels can be made variable.

  The first arm and the second arm are provided with a plurality of attachment holes to which the fixing member is attached in the longitudinal direction, and the plurality of attachment holes are provided in gaps between the attachment holes. The fixing member having a corresponding length may be attached.

  The coupling mechanism further includes a third arm that is rotatably attached to the inner surface of the formwork panel having one end attached to the first arm, and the second arm attached to one end. The third arm has a fourth arm rotatably attached to the inner surface of the formwork panel and the other end rotatably connected to the other end of the third arm. The first arm is provided so as to cross the first arm, the fourth arm is provided so as to cross the second arm, and the first arm and the third arm cross each other. And the said attachment hole may be made to be provided in the cross | intersection part where the said 2nd arm and the said 4th arm cross | intersect.

  Further, at least one of the first to fourth arms may be provided with a reinforcing bar support portion disposed in the gap between the pair of formwork panels.

  The concrete casting form according to the present invention has a connecting mechanism that can change the gap between the pair of form panels, and the connecting mechanism is attached to one form panel on one side. The first arm is attached to the other formwork panel, and at least one end is turnably attached to the inner surface of the one formwork panel, and one end is turnable to the inner surface of the other formwork panel. The second arm is attached and the other end is rotatably connected to the other end of the first arm, and a fixing member that fixes the width of the gap between the pair of formwork panels. The first arm and the second arm are provided with attachment holes for attaching the fixing members, and the fixing members having a length corresponding to the gaps of the attachment holes are attached. The width can be easily set, and by attaching a fixing member to the mounting hole, the thickness of the concrete wall to be placed can be easily fixed. Space can be achieved.

  Further, according to the present invention, the arm constituting the coupling mechanism is provided with a reinforcing bar support portion disposed in the gap between the pair of formwork panels, and the reinforcing bar can be supported at a predetermined position.

  Hereinafter, the best mode for carrying out a concrete casting form according to the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, a concrete casting form 1 connects a pair of form panels 2 and 2 arranged in parallel to each other and the form panels 2 and 2 at a plurality of locations. And a plurality of connecting mechanisms 3. The concrete casting form 1 is formed by connecting the form panels 2 and 2 by a connecting mechanism 3 and separating them by a predetermined distance, and placing concrete in the gap between the pair of form panels 2 and 2, thereby providing a concrete wall. Is formed. The concrete casting form 1 forms a concrete wall having a desired width and height by connecting a pair of form panels 2 and 2 in the vertical direction and the longitudinal direction.

  As shown in FIGS. 1 and 2, the formwork panel 2 has a horizontally long main surface in a substantially rectangular plate shape, and the material thereof is made of foamed polystyrene. The formwork panel 2 has a convex part 21 provided in the longitudinal direction of the top part 2a and the length of the bottom part 2b so that the concrete does not leak from the joint part when the formwork panels 2 and 2 are joined in the vertical direction. When the mold panels 2 and 2 are vertically connected, the convex portion 21 of the lower mold panel 2 is fitted into the concave 22 of the upper mold panel 2. It has a whole configuration.

  The convex part 21 provided in the top part 2a is a convex part provided over the longitudinal direction of the top part 2a at the central part in the thickness direction of the form panel 2 at the top part 2a, and the form panel connected upward. It is the shape which fits into the recessed part 22 of 2 bottom part 2b. The concave portion 22 provided in the bottom portion 2b is a concave portion provided over the longitudinal direction of the bottom portion 2b at the center portion in the thickness direction of the mold panel 2 at the bottom portion 2b. It has a shape in which the convex portion 21 of the top portion 2a is fitted.

  Further, the mold panel 2 includes a convex portion 23 provided in the vertical direction of one end portion 2c and the other so that the concrete does not leak from the connecting portion when the mold panel 2 is connected in the longitudinal direction. When the mold panels 2, 2 are connected in the longitudinal direction, the convex portion 23 of one mold panel 2 is connected to the other mold frame. It has a configuration that fits into the recess 24 of the panel 2.

  The convex portion 23 provided on the one end portion 2c is a convex portion provided across the vertical direction of the one end portion 2c at the central portion in the thickness direction of the formwork panel 2 at the one end portion 2c. The shape is fitted into the recess 24 of the other end 2d of the formwork panel 2 connected in the longitudinal direction.

  The recess 24 provided in the other end 2d is a recess provided in the center of the other end 2d in the thickness direction of the mold panel 2 and extending in the vertical direction of the other end 2d. The convex part 23 of one end part 2c of the formwork panel 2 connected in the direction is fitted.

  Moreover, the mold panel 2 is provided with the recessed part 25 in which the end plates 31L and 31R which comprise the connection mechanism 3 fit in the several places of the outer side main surface 2e.

  The recess 25 is a recess having the same size as the main surface of the end plates 31L and 31R and a depth similar to the thickness of the end plates 31L and 31R. A plurality of recesses 25 are provided in accordance with the number of connection mechanisms 3 connected to the formwork panel 2. In this description, as shown in FIG. 1, three recesses 25 are provided on the outer main surface 2 e of the formwork panel 2.

  In addition, the convex part 21 and the recessed part 22 provided in the formwork panel 2 are not limited to the shape mentioned above, and are placed in the connection part of one formwork panel 2 and the other formwork panel 2 to be connected. Any shape can be used as long as it prevents the concrete to be leaked.

  The formwork panel 2 may be made of a fire-resistant material such as foamed polystyrene, foamed polyethylene, or foamed polyurethane, or a heat-insulating material such as glass wool mixed cement, in addition to the above-described materials.

  As shown in FIGS. 2, 3, and 4, the coupling mechanism 3 is an end plate provided at a position facing the pair of formwork panels 2, 2 disposed so as to face each other in parallel with each other. 31L, 31R, a first arm 32 having one end rotatably attached to the end plate 31L of one mold panel 2, and one end rotatably attached to the end plate 31R of the other mold panel 2. At the same time, the other end of the first arm 32 is rotatably connected to the second arm 33, and the other end is rotatably attached to the end plate 31L on the side where the first arm 32 is attached. And the other end of the third arm 34 is rotatably connected to the other end of the third arm 34 and the other end of the third arm 34 is rotatably connected to the end plate 31R on the side to which the second arm 33 is attached. The fourth a And arm 35, and a fixing member 42 for fixing the width of the gap of the pair of form panels 2,2. The connection mechanism 3 is connected in a pantograph shape by the end plates 31L and 31R and the first to fourth arms 32 to 35.

  As shown in FIG. 3, the first to fourth arms 32 to 35 constituting the coupling mechanism 3 are provided at two locations on the upper and lower sides with respect to the pair of end plates 31L and 31R.

  The end plate 31L is composed of a plate-like member having a substantially rectangular main surface, and the size of the end plate 31L is slightly smaller than the height of the formwork panel 2, and the width of the two arms, that is, the first arm 32 and The first mounting piece 36 and the second mounting piece 37 to which the third arm 34 is connected are wide enough to be provided, and the material thereof is made of plastic. The main surface 31a of the one end plate 31L facing the formwork panel 2 has a first attachment piece 36 connected to one end of the first arm 32 and one of the third arms 34. A second attachment piece 37 connected to the end of the second attachment piece 37 and a third attachment piece 38 to which the reinforcing member 41 is attached are provided upright. The end portions of the respective attachment pieces 36 to 38 face the inner main surface by being inserted through the insertion holes 25a provided in the concave portions 25 of the formwork panel 2 with which the end plates 31L are engaged.

  The first attachment piece 36 is erected at a position where the first arm 32 of the main surface 31a is attached, and the connection hole 36a connected to the first arm 32 provided at the end portion is provided with the formwork panel 2. It is provided at such a height as to face from the inner main surface.

  The second attachment piece 37 is erected at a position where the third arm 34 of the main surface 31a is attached, and the connection hole 37a connected to the third arm 34 provided at the end portion is provided with the formwork panel 2. It is provided at such a height as to face from the inner main surface.

  The third attachment piece 38 is erected at a position where the reinforcing member 41 of the main surface 31 a is attached, and the attachment hole 38 a to which the reinforcing member 41 provided at the end is attached is formed from the inner main surface of the formwork panel 2. It is provided at such a height as to face.

  Further, on the main surface 31a of the other end plate 31R facing the formwork panel 2, the first mounting piece 36, the second mounting piece 37 and the third mounting piece 38 are provided in the same manner as the end plate 31L. Is provided. However, the second arm 33 is connected to the first mounting piece 36 provided on the end plate 31R, and the fourth arm 35 is connected to the second mounting piece 37 provided on the end plate 31R. Is done. A reinforcing member 41 is attached to the third attachment piece 38 provided on the end plate 31R.

  Further, as shown in FIG. 3, two sets of upper and lower sets of the first mounting piece 36, the second mounting piece 37, and the third mounting piece 38 are provided on the end plates 31L and 31R.

  The end plate 31L and the end plate 31R are provided with a first mounting piece 36 and a second mounting piece 37 at symmetrical positions so that the arms 32 to 35 connected to each other have a pantograph shape. ing.

  The first arm 32 is formed of a substantially strip-shaped plastic or the like, and has a connection hole 32a for rotatably connecting to one end of the first attachment piece 36 of the end plate 31L, and the other end. A connecting hole 32b for pivotally connecting to the second arm 33, and a side hole of the first arm 32 in the vicinity of the connecting hole 32b, and disposed in a gap where concrete is placed A support piece 32c for supporting the reinforcing bar to be formed, and an attachment hole 32d provided at a substantially central portion of the first arm 32 to which the fixing member 42 is attached.

  Similarly to the first arm 32, the second arm 33 is formed of a substantially strip-shaped plastic or the like, and is connected to one end of the first mounting piece 36 of the end plate 31R so as to be rotatable. A hole 33a, a connecting hole 33b rotatably connected to the first arm 32 at the other end, and a side end of the second arm 33 in the vicinity of the connecting hole 33b are provided with concrete. A support piece 33c that supports the reinforcing bars disposed in the gap, and a mounting hole 33d that is provided at a substantially central portion of the second arm 33 and to which the fixing member 42 is attached.

  The third arm 34 is formed of a substantially strip-shaped plastic or the like, and has a connecting hole 34a for rotatably connecting to one end of the second mounting piece 37 of the end plate 31L, and the other end. A connecting hole 34b to be rotatably connected to the fourth arm 35, and a side hole of the third arm 34 in the vicinity of the connecting hole 34a, and disposed in a gap in which concrete is placed. A support piece 34c for supporting the reinforcing bar to be formed, and an attachment hole 34d provided in a substantially central portion of the third arm 34 to which the fixing member 42 is attached.

  Similarly to the third arm 34, the fourth arm 35 is formed of a substantially strip-like plastic or the like, and is pivotally connected to one end of the second mounting piece 37 of the end plate 31R. A connecting hole 35a, a connecting hole 35b for rotatably connecting to the third arm 34 at the other end, and a side end of the fourth arm 35 in the vicinity of the connecting hole 35a. Has a support piece 35c for supporting a reinforcing bar disposed in the gap where the fixed member 42 is placed, and a mounting hole 35d provided at a substantially central portion of the fourth arm 35 to which the fixing member 42 is attached.

  For example, bolts are inserted into the connection holes 32a to 35b provided in the respective end portions of the first to fourth arms 32 to 35, and are rotatably screwed by nuts. The connecting holes 32a to 35b are not limited to those screwed by bolts and nuts as described above, but may be any one that can rotatably connect the respective members. It may be connected.

  Further, the positions of the support pieces 32c to 35c for supporting the reinforcing bars provided on the arms 32 to 35 are provided at positions corresponding to the reinforcing bar arrangement positions that change depending on the concrete wall thickness. When the wall thickness is wide, the reinforcing bars are supported by the support pieces 32c and 33c of the first arm 32 and the second arm 33, and when the concrete wall thickness is narrow, the third arm 34 and the fourth arm are supported. The support bars 34c and 35c of 35 support the reinforcing bars.

  A fixing member 42 having a length corresponding to a desired concrete wall thickness is attached to the attachment holes 32d to 35d provided in the first to fourth arms 32 to 35, and the width between the formwork panels 2 and 2 Can be set to a predetermined width and fixed.

  Further, as shown in FIG. 3, a plurality of mounting holes 32d to 35d provided in the first to fourth arms 32 to 35 are provided along the longitudinal direction of the first to fourth arms 32 to 35, respectively. Thus, for example, even if the fixing member 42 has a constant width, the width between the mold panels 2 and 2 can be set to a predetermined width and fixed.

  The first to fourth arms 32 to 35 can fix the coupling mechanism 3 by using one fixing member 42, so that the first arm 32, the third arm 34, the second arm 33, and the second arm 33 can be fixed. The four arms 35 are provided at positions where they intersect. Specifically, the attachment holes 32d to 35d to which the fixing members 42 of the first to fourth arms 32 to 35 are attached are the attachment hole 32d of the first arm 32, the attachment hole 34d of the third arm 34, and the first. It is preferable that the mounting hole 33d of the second arm 33 and the mounting hole 35d of the fourth arm 35 are provided at positions that are on the same axis line at positions spaced apart from each other by a predetermined distance. If it does in this way, since each arm 32-35 can be fixed by one fixing member 42, it also becomes possible to reduce the number of parts. The mounting holes 32d to 35d provided in the first to fourth arms 32 to 35 are provided at a plurality of positions at predetermined positions of the first to fourth arms 32 to 35 so as to be located on the same axis. You may do it.

  In addition, although the connection mechanism 3 demonstrated the structure in which the 1st-4th arms 32-35 were provided in this description, it is not only this but the intensity | strength which only connects a pair of formwork panels 2 and 2 If so, a configuration including only the first arm 32 and the second arm 33 may be used.

  Moreover, the 1st-4th arms 32-35 which comprise the connection mechanism 3 are not restricted to being provided in two places in a pair of end plates 31L and 31R as mentioned above, A pair of formwork panel 2 1 or 3 or more may be provided if the strength is sufficient to connect the two.

  The reinforcing member 41 is made of a rod-shaped member, is formed in a U-shaped cross section, and both end portions are inserted into the mounting holes 38a and 38a of the end plates 31L and 31R. The reinforcing member 41 is formed in such a length that the formwork panels 2 and 2 can be fixed at positions separated by a predetermined distance. Even if the distance between the formwork panels 2 and 2 is changed, the reinforcing member 41 This can be dealt with only by changing the length of 41.

  The fixing member 42 has the same shape as that of the reinforcing member 41, and one end portion is formed on the first arm 32 and the third arm 34, and the other end portion is formed on the second arm 33 and the fourth arm 35. It is inserted. Similarly to the reinforcing member 41, the fixing member 42 is formed in such a length that the mold panels 2 and 2 can be fixed at positions separated by a predetermined distance, and the distance between the mold panels 2 and 2 is changed. Even so, it can be dealt with only by changing the length of the fixing member 42.

  As shown in FIG. 5, the concrete casting mold 1 having the above-described configuration is arranged in two stages on the base concrete 5, and the reinforcing bars 6 are arranged vertically and horizontally in the gap between the mold panels 2 and 2. The bars are placed and concrete is placed between them.

  Moreover, the concrete casting form 1 having the above-described configuration has a connecting mechanism 3 that can change the gap between the pair of form panels 2 and 2, and the connecting mechanism 3 has at least one end. The first arm 32 is rotatably attached to the inner surface of one mold panel 2, and one end is rotatably attached to the inner surface of the other mold panel 2, and the other end is the first arm 32. A second arm 33 rotatably connected to the other end of the frame, and a fixing member 42 that fixes the width of the gap between the pair of formwork panels 2 and 2. The first arm and the second arm are provided with mounting holes 32d and 33d for mounting the fixing member 42, and the fixing member 42 having a length corresponding to the gap between the mounting holes 32d and 33d is mounted. At the construction site, it can be easily set to a desired width, and by attaching the fixing member 42 to the mounting holes 32d, 33d, the thickness of the concrete wall to be placed can be easily fixed, Excellent workability. Furthermore, the formwork panels 2 and 2 and the coupling mechanism 3 are integrally formed, and no complicated work is required at the time of construction. Further, at the time of transport, the space between the mold panels 2 and 2 can be minimized to improve the convenience of transport, and space saving can be achieved.

  In addition, although the concrete casting form 1 described using the end plate 31 to connect each of the arms 32 to 35 of the connecting mechanism 3 to the form panel 2, the present invention is not limited to this. Any structure that can be fixed to the panel 2 may be used.

It is a perspective view which shows the formwork for concrete placement to which this invention is applied. It is a disassembled perspective view of the concrete placement formwork to which this invention is applied. It is a front view of the connection mechanism of the concrete placement formwork to which the present invention is applied. It is a top view of the connection mechanism of the concrete placement formwork to which the present invention is applied. It is the front view which showed the usage example of the formwork for concrete placement to which this invention is applied.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Formwork for concrete placement, 2 Formwork panel, 2a Top part, 2b Bottom part, 2c One end part, 2d The other end part, 2e Outer main surface, 3 Connection mechanism, 21 Convex part, 22 Concave part, 23 Convex part , 24 recess, 25 recess, 31 end plate, 31a main surface, 32 first arm, 32a, 33b connection hole, 32c support piece, 32d mounting hole, 33 second arm, 33a, 33b connection hole, 33c support piece , 33d mounting hole, 34 third arm, 34a, 34b connecting hole, 34c support piece, 34d mounting hole, 35 fourth arm, 35a, 35b connecting hole, 35c support piece, 35d mounting hole, 36 first mounting Piece, 36a, 37a, 38a Mounting hole, 37 Second mounting piece, 38 Third mounting piece, 41 Reinforcing member, 42 Fixing member

Claims (4)

A pair of formwork panels arranged to face each other parallel to each other;
A first arm attached on one side to the one formwork panel, the other side attached to the other formwork panel, and at least one end rotatably attached to the inner surface of the one formwork panel; A second arm having one end rotatably attached to the inner surface of the other form panel and the other end rotatably connected to the other end of the first arm; and the pair of form panels And a coupling mechanism having a fixing member for fixing the width of the gap,
The first arm and the second arm are provided with mounting holes for mounting the fixing member, and the fixing member having a length corresponding to the gap between the mounting holes is mounted,
The concrete placement form, wherein the connecting mechanism can change a width of a gap between the pair of form panels. The first arm and the second arm are provided with a plurality of attachment holes to which the fixing member is attached over the longitudinal direction,
2. The concrete placement form according to claim 1, wherein the fixing member having a length corresponding to a gap between the attachment holes is attached to the plurality of attachment holes. The connecting mechanism further includes a third arm having one end rotatably attached to the inner surface of the formwork panel to which the first arm is attached, and the die having one end attached to the second arm. A fourth arm pivotally attached to the inner surface of the frame panel and having the other end pivotably connected to the other end of the third arm;
The third arm is provided to intersect the first arm,
The fourth arm is provided to intersect the second arm,
The attachment hole is provided at an intersection where the first arm and the third arm intersect and an intersection where the second arm and the fourth arm intersect. The concrete casting form according to claim 1.   4. The concrete placing according to claim 1, wherein at least one of the first to fourth arms is provided with a reinforcing bar support portion disposed in a gap between the pair of formwork panels. Installation formwork.

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