JP4119943B1 - Hardware for holding the base formwork spacing and anchor bolts - Google Patents

Abstract

Kind Code: A1 By providing a single hardware with a function of maintaining the distance between the base mold plates and a function of supporting anchor bolts, it is possible to reduce the types of hardware and rationalize the members. An object of the present invention is to provide hardware capable of greatly reducing the installation and removal work of hardware.
According to the present invention, there is provided a metal mold for holding a base formwork interval and an anchor bolt for holding a space between left and right basic formwork plates in a parallel state and holding an anchor bolt on the base formwork plate. A base plate that is placed over and placed; a pair of spacing members that are fixed to the lower side of the base plate and fitted to the upper ends of the left and right foundation mold plates; and The base plate is provided with an anchor bolt holding plate that has a predetermined interval and a parallel portion, and is provided with anchor bolt insertion holes in the base plate and the anchor bolt holding plate.
[Selection] Figure 2

Description

  In the present invention, when a concrete foundation of a house is formed, when the anchor bolts are attached to the foundation formwork space holding hardware and the foundation for keeping the space between the left and right foundation formwork plates in a parallel state, the placed concrete is hardened. The present invention relates to an anchor bolt supporting hardware that holds the anchor bolt until it is done.

  As shown in FIG. 5, in a conventional concrete structure foundation formwork, a metal mold that is formed of left and right formwork boards 4A and 4B in a parallel state as shown in FIG. In the frame 4, the inner surface of the left and right mold plates is supported by the width bracket main body 2 which is composed of the width bracket main body 2 and the iron pin 3 and is suspended in a direction orthogonal to the longitudinal direction of the left and right mold plate plates 4A and 4B. And what is comprised so that the outer surface of a left and right formwork board may be supported with the iron pin 3 driven in the outer part of a width | variety metal fitting main body (for example, refer patent document 1. Hereinafter, "the prior art." 1 ”).

  Moreover, in general, anchor bolts for joining the foundation and the housing structure of the upper structure are embedded in the concrete foundation of the house, and the lower part is embedded in the concrete foundation and the upper part extends upward from the upper surface of the concrete foundation. It is attached in a state. Mounting the anchor bolt to the foundation, for example, before placing concrete in the concrete foundation formwork, place the anchor bolt at a predetermined position so that the lower part of the anchor bolt is buried in the concrete, Next, concrete is placed in the mold.

Conventionally, as an anchor bolt support for placing anchor bolts at a predetermined position before placing concrete, as shown in FIG. 6, two formwork members 3 arranged opposite to each other of the base formwork 2, A rectangular support plate 4 placed in a state of being bridged on the base plate 3, and at both ends of the support plate 4, the restriction portions 5 and 5 cut out from the support plate 4 and bent downward; A support plate portion 6 erected substantially vertically at the center of the support plate 4, an extension plate portion 7 extending in parallel with the support plate 4 from the upper end portion of the support plate portion 6, the support plate 4, and the support plate 4 There is known one that includes insertion holes 8 and 9 provided at positions where the extension plate portion 7 overlaps each other, and a nut 11 that is screwed into an upper end portion of the anchor bolt 10 (see, for example, Patent Document 2). (Hereinafter referred to as “Prior Art 2”).
JP 2003-56180 A Japanese Patent Laid-Open No. 10-237876

  However, the hardware that holds the interval between the basic mold plates of the prior art 1 holds the interval between the left and right mold plates in the parallel state to a certain degree, but cannot hold the anchor bolt. Further, when the left and right mold plates 4A and 4B are held, the inner side of the mold plate abuts against the width stopper main body 2, so that the inner position is determined, but the outer side of the mold plate is the iron pin 3 Therefore, there is a drawback that the iron pin 3 is moved outward depending on the driven state of the iron pin 3 or moved in the direction of pressing the opposite formwork.

On the other hand, the anchor bolt support of prior art 2 only has a function of supporting the anchor bolt, and does not have a function of maintaining the interval between the foundation mold plates.
That is, in the prior art 2, there are provided restricting portions 5 and 5 which are cut out and bent downwards on a part of the support plate 4, which is to position the support plate 4 at the center of the mold. It was not for maintaining the distance between the left and right mold plates.

  In this way, in the prior art, the hardware that holds the gap between the base mold plates and the hardware that supports the anchor bolt are formed separately, and are separately installed and removed. There was a problem that the installation and removal work of hardware increased. In addition, a plurality of these hardwares are installed at predetermined intervals in the longitudinal direction of the foundation mold, and when two types of hardware are installed, the pitch of the installation becomes fine and is placed when placing concrete. There was also a problem that the concrete was disturbed by hardware, and the flow of the concrete was hindered.

  The present invention has been made to solve the above-described problems of the prior art, and by providing a single hardware with a function of maintaining the distance between the base mold plates and a function of supporting anchor bolts. To provide hardware for holding the base formwork and holding anchor bolts that can reduce the types of hardware and rationalize the members, and can greatly reduce the installation and removal of hardware. It is the purpose.

In order to achieve the above-mentioned object, the metal mold for holding the basic formwork spacing and anchor bolts according to the present invention is a metal mold for holding the space between the left and right basic formwork boards in parallel and holding the anchor bolts. A base plate laid over and placed on the base plate; a pair of spacing members fixed to the lower side of the base plate and fitted to the upper ends of the left and right foundation mold plates; and the base An anchor bolt holding plate standing on the upper side of the plate and having a predetermined interval and a parallel portion is provided, and an anchor bolt insertion hole is provided in the base plate and the anchor bolt holding plate. Yes.
In addition, the basic frame interval holding and anchor bolt holding hardware of the present invention is characterized in that a through hole for peeping and fixing is provided through the base plate and the interval holding member.
Further, in the base formwork interval holding and anchor bolt holding hardware of the present invention, the interval holding member has a substantially U-shape opening downward, the outer plate is formed longer than the inner plate, It is characterized by being provided in an inclined shape that opens outward.
Further, in the base formwork interval holding and anchor bolt holding hardware of the present invention, the anchor bolt holding plate is composed of both side plates rising vertically from the base plate and a top plate extending between the both side plates and parallel to the base plate. It is characterized by that.

The present invention has the following excellent effects.
(1) The type of hardware can be reduced by providing a single hardware with the function of maintaining the distance between the basic formwork plates and the function of maintaining the anchor bolt.
(2) When forming with one hardware, the base member can also be used, and the rationalization of the member can be achieved.
(3) Since the number of hardware to be installed can be halved, the work required for installation and removal of hardware can be greatly reduced.
(4) It is possible to minimize the impediment to the flow of concrete placed during concrete placement.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out a metal mold for holding a basic formwork interval and anchor bolts according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a main part showing a state in which the base formwork interval holding metal fittings and anchor bolt holding metal fittings according to the present embodiment are installed, and shows a state before placing concrete.
The ground crushed stone 41 is spread over the place where the concrete is placed, and the left and right foundation mold plates 40, 40 are installed in a parallel state thereon. The base mold plates 40, 40 extend in the longitudinal direction at a predetermined interval and have a predetermined height.
While keeping the interval between the base mold plates 40, 40 constant, the base mold frame holding metal fixture 20 for holding the anchor bolts and the anchor bolt holding hardware 20 are arranged in the longitudinal direction above the basic mold plates 40, 40 in the longitudinal direction. A plurality of the base mold plates 40, 40 are placed in parallel and at a constant width over a predetermined length.

A downward force is applied to both sides of the base formwork spacing holding and anchor bolt holding hardware 20 by a turnbuckle rope 34 connected to the underground pile 35. The upper portions of 40 and 40 are pressed downward by the metal molds 20 for holding the space between the basic formwork and holding the anchor bolts so as to be stably held.
In addition, in the base formwork interval holding and anchor bolt holding hardware 20, anchor bolts 28 for joining the concrete foundation and the housing of the upper structure are embedded in the lower part of the concrete foundation and the upper part of the upper part. It is attached to extend upward from the upper surface of the concrete foundation.

FIG. 2 is a cross-sectional view showing a state in which the base formwork space holding and anchor bolt holding hardware 20 is installed, and concrete 36 to be placed later is indicated by a one-dot chain line.
FIG. 3 is a perspective view of the base formwork interval holding and anchor bolt holding hardware 20, and FIG. 4 is a perspective view showing a state where the base formwork spacing holding and anchor bolt holding hardware 20 is inverted. It is.

With reference to FIGS. 2 to 4, the base metal frame holding metal fixture 20 and anchor bolt holding hardware 20 will be described.
The base formwork interval holding and anchor bolt holding hardware 20 includes a base plate 21 that is placed on the base formwork plates 40 and 40 and placed on the lower side of the base plate 21. A pair of spacing members 22, 22 provided at positions where they are respectively fitted to the upper ends of the mold plates 40, 40, and standing parallel to the base plate that is erected on the upper side of the base plate 21. And an anchor bolt holding plate 25.
The base plate 21, the spacing member 22 and the anchor bolt retaining plate 25 are each formed of a metal plate and fixed by welding or the like. The base plate 21 is composed of the spacing member 22 and the anchor bolt retaining plate 25. The two members are fixed to a predetermined position.
Further, holes 32, 32 for passing a bar connected to the turnbuckle 34 are formed on both sides of the base plate 21.

The spacing member 22 has a substantially U-shape that opens downward, and the outer plate 24 is formed longer than the inner plate 23. The outer plate 24 is provided in an inclined shape that is slightly opened outward from the base toward the tip. It is done. The substantially U-shaped size is set to be substantially the same as the width of the upper portion of the basic mold plate 40 at the base and slightly larger at the tip opening.
For this reason, when the spacing member 22 is fitted to the upper part of the basic mold plate 40 from above, the upper part of the basic mold plate 40 is guided by the inclined surface of the outer plate 24 so that the substantially U-shaped opening is formed. Fit to the base. At that time, the distance between the left and right spacing members 22, 22 is set so that the inner dimension of the inner plates 23, 23 matches the inner dimension of the basic mold plates 40, 40. At the time of joining, the basic mold plates 40, 40 are held at a predetermined interval.

  A nail or a screw may be used in order to firmly fix the base formwork interval holding and anchor bolt holding hardware 20 on the base formwork plates 40 and 40. When the base mold plate 40 is made of wood, a nail is used, and when it is made of metal, a screw that is screwed into a screw hole formed in advance in the basic mold plate is used. For this reason, the base plate 21 and the spacing member 22 are provided with a through-hole 33 for peeping and fixing.

The anchor bolt holding plate 25 is provided on the upper side and the center of the base plate 21, and extends between the side plates 26, 26 rising vertically from the base plate 21 and the side plates 26, 26. The top plate 27 is parallel to the top plate 27.
Also, anchor bolt insertion holes 30 and 31 for inserting anchor bolts 28 are provided in the base plate 21 and the top plate 27 of the anchor bolt holding plate 25, respectively. Since the lower end of the anchor bolt 28 is usually bent or thick, the anchor bolt 28 is inserted upward from the lower side of the anchor bolt insertion holes 30 and 31 and is fixed by a nut 29 at a predetermined position.

  The distance between the base plate 21 and the top plate 27 of the anchor bolt holding plate 25 is desirably large from the viewpoint of holding the anchor bolt 28 vertically, but the upper portion of the anchor bolt 28 extends upward from the upper surface of the concrete foundation. Since there is a restriction on the length, it is set to a certain appropriate dimension. This spacing is preferably in the range of about 5-10 cm for residential foundations.

The base formwork spacing holding and anchor bolt holding hardware 20 of the present invention can be easily installed in the following manner.
(1) The anchor bolt 28 is inserted into the anchor bolt insertion holes 30 and 31 of the base plate 21 and the anchor bolt holding plate 25 and fixed with a nut 29 at a predetermined position.
(2) The left and right foundation mold plates 40, 40 are erected in parallel on the foundation crushed stone 41 where the concrete is to be placed, and the foundation mold frame spacing is located above the foundation mold plates 40, 40 from above. The interval holding member 22 of the holding and anchor bolt holding hardware 20 is fitted.
(3) The operation of the above (2) is repeated, and a plurality of hardware 20 for holding the basic mold frame interval and holding the anchor bolts are placed at predetermined intervals in the longitudinal direction of the basic mold plates 40, 40. Thereby, the basic mold plates 40 and 40 are held with a predetermined width.
(4) A bar extending from one of the turnbuckle ropes 34 is fitted into the holes 32 on both sides of the base formwork spacing holding and anchor bolt holding hardware 20, and the bar extending to the other of the turnbuckles 34 is connected to the underground pile 35. And the turnbuckle rope 34 is tightened to apply a downward force to the hardware 20 to stably support the base mold plates 40 and 40.

It is a perspective view of the principal part which shows the state in which the base formwork space | interval holding | maintenance object and anchor bolt holding | maintenance hardware which concern on this Embodiment were installed. It is sectional drawing which shows the state in which the base formwork space | interval holding | maintenance metal fitting and anchor bolt holding | maintenance hardware in this Embodiment were installed. It is a perspective view of the hardware for holding a basic formwork interval and anchor bolts in the present embodiment. It is a perspective view which shows the state which reversed the metal mold | work for holding | maintaining a basic formwork space | interval and anchor bolt in this Embodiment. It is sectional drawing for demonstrating the metal fitting which hold | maintains the space | interval of the conventional basic formwork board. It is a perspective view for demonstrating the conventional anchor bolt support tool.

Explanation of symbols

20 Hardware for holding base formwork spacing and anchor bolts 21 Base plate
22 Spacing member
23 inner plate 24 outer plate 25 anchor bolt holding plate 26 both side plates 27 top plate 28 anchor bolt 29 nut 30 anchor bolt insertion hole 31 anchor bolt insertion hole 32 hole 33 through hole 34 turnbuckle 35 underground pile 36 concrete 40 foundation formwork Board 41 Basic crushed stone

Claims (3)

In the hardware that holds the space between the left and right foundation mold plates in parallel and holds the anchor bolts, a base plate that is laid and placed on the foundation mold plate and fixed to the lower side of the base plate. A pair of spacing members provided at positions where they are respectively fitted to the upper ends of the left and right basic form plates, and an anchor bolt standing on the upper side of the base plate and having a predetermined distance from the base plate and having a parallel portion A holding plate,
An anchor bolt insertion hole is provided in the base plate and the anchor bolt holding plate, and the interval holding member has a substantially U-shape opening downward, and the size of the substantially U-shape is that of the base mold plate at the base. the same as the top width is set larger at the distal end opening, longer forms an outer plate from the inner plate, outer plate foundation formwork interval retaining and anchor bolt, characterized in that provided in inclined open outward Hardware for holding.   2. A base metal frame holding metal fixture and anchor bolt holding metal fitting according to claim 1, wherein a through hole for peeping and fixing is provided through the base plate and the space holding member.   3. The anchor bolt holding plate according to claim 1 or 2, wherein the anchor bolt holding plate is composed of both side plates rising vertically from the base plate and a top plate extending between the both side plates and parallel to the base plate. Anchor bolt holding hardware.

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