JP3431862B2 - Leg frame forming method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a pair of rectangular and mesh side molds arranged opposite to each other, and both molds can be folded by connecting them with a plurality of connecting spacers made of wire rod. The present invention relates to an improvement in a method for forming a method frame using an embedded mold for forming a method frame.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 15, an embedded formwork for forming a method frame has two connecting spacers 60 arranged between parallel net-like formworks 20 facing each other. Horizontal wire rods 80a, 80b and the wire rods 80a, 80
By connecting two longitudinal wire rods 70a and 70b connected between b to each other, both ends of the horizontal wire rods 80a and 80b are pivotally connected to the side frame 20 so as to be rotatable about the longitudinal axis. , Was configured to be foldable.

The above-mentioned embedded formwork for forming a formwork is carried into a formwork construction site in a state where two side formworks 20 are folded so as to be overlapped with each other. Installed at a predetermined position to make it self-supporting, arrange the upper end main bar and the lower end main bar in the form supported by the lateral wire rods 80a, 80b, and spray mortar, concrete, etc. inside and outside the form, It is used to mold the formwork.

[0004]

In the conventional embedded formwork for forming a frame, since the net-like side formwork 20 has a structure for bearing the entire load in the vertical direction, the side formwork 20 is strong. Since a strong net is required and the net-like side frame 20 and the connecting spacer 60 are directly connected,
The side formwork 20 becomes an obstacle to the work from the side and binds the lower end main bar to the lower wire rod 80b of the connecting spacer 60, or wraps a stirrup around the upper end main bar and the lower end main bar. However, the work of binding the stirrup and the lower end main bar in the case of construction is very troublesome and there is a problem that the workability is poor.

The present invention has been made in view of the above-mentioned problems of the prior art. In the embedded mold for forming a legal frame, which has a mesh side frame and a connecting spacer made of a wire material, It is possible to use an inexpensive net with a small wire diameter as a formwork, and also work from the side, for example,
Work to bind the lower-end main bar to the lower wire of the connecting spacer, work to bind the stirrup and lower-end main bar when wrapping the stirrup around the upper-end main bar and the lower-end main bar, mortar, concrete, etc. in the formwork. It is an object to facilitate filling work and the like.

[0006]

In order to solve the above problems, the present invention takes the following technical means. That is, in the invention described in claim 1, a plurality of connecting spacers made of wire rods are pivotally connected to a pair of side-face frames formed in a rectangular shape by a plurality of horizontal wire rods and vertical wire rods so that they can be folded. And a self-supporting skeleton, and the side frame is provided with a rectangular and reticulated side frame .
Disengage from the horizontal wire rod of each side frame attached to the side formwork
By engaging a plurality of possible hooks with the transverse wire,
In a method for forming a method frame using an embedded mold for method frame molding that is detachably attached, when filling mortar, the side mold is removed and the mortar is also filled from the side of the form. By this, it is characterized by avoiding defective filling of mortars.

According to the second aspect of the invention, a plurality of connecting spacers made of wire rods are pivotally connected to a pair of side-face frames formed in a rectangular shape by a plurality of horizontal wire rods and vertical wire rods so that they can be folded. And a self-supporting skeleton structure, and a rectangular frame-shaped side frame is attached to the side frame so as to be swingable with one side edge in the vertical direction as a fulcrum, and is embedded in a method frame molding die. In a method of forming a frame using a frame, when filling mortar, by rocking the side form to open the side face of the form and filling the mortar from the side of the form, It is characterized by avoiding poor filling.

The embedded formwork for forming a legal form having the above-mentioned structure can be carried into a legal form construction site in a state in which the frame is folded and the two net-like side forms are superposed. In the field, it can be deployed in a use posture and installed at a predetermined position on the slope to be self-supporting.

In addition, since the skeleton itself is self-supporting and the net-shaped side form does not bear the vertical load in the deployed state, the side form does not require so much strength, and the wire diameter is small and inexpensive. You can use various meshes.

In particular, in the embedded formwork for forming a method frame according to the first aspect of the invention, the net-like side formwork is detachable from the side frame of the frame, and according to the second aspect of the invention. Since the embedded formwork for forming a legal frame can swing about one side edge in the vertical direction with respect to the side frame of the frame as a fulcrum, in the former case, by removing the side formwork, in the latter, the side mold form is removed. By swinging the frame, the side surface of the mold can be opened to form a working space from the side of the mold.

Therefore, various works from the side, for example, a work of binding the lower end main bar to the wire of the lower stage, or a stirrup and a lower end when wrapping a stirrup (rib bar) around the upper end main bar and the lower end main bar The work of binding the main bars and the work of filling the formwork with mortar, concrete, etc. can be easily performed.

According to a third aspect of the present invention, the connecting spacer is X in a plane perpendicular to the side mold in a state where the embedded mold for forming the legal frame is developed in the use posture. By constructing two wire rods intersecting with each other and two wire rods in the horizontal direction which are placed horizontally above and below the two wire rods, any of the method frame forming embedded formwork, in a self-supporting state, has a connecting spacer. Has a bracing structure in which two wires are crossed in an X shape, and thus is very robust and is difficult to deform in the width direction. Therefore, when molding the frame part along the contour line, due to the weight of the main bar supported by the connecting spacer, especially due to an unexpected load when an operator steps on the main bar or abuts another object on the main bar, It is possible to improve the quality of the legal frame without the risk of the mold being deformed in the width direction.

If mortar, concrete, etc. are sprayed into and out of the formwork, filling failure may occur on the backside of the main bar, such as on the backside in the direction of spraying. Furthermore, a spacer for connection is attached to the side formwork. If it is composed of two wire rods that intersect in an X-shape in a plane perpendicular to each other and a horizontal wire rod that is laid across two upper and lower portions of both wire rods, from the longitudinal one end side of the main bar in the form When mortar and concrete are filled in the space, cavities (sparse parts such as mortar and concrete) may be formed due to poor filling of the back side of the X-shaped intersection of the connecting spacer. As you can see, the side mold can be removed or swung to open the side of the mold, so you can fill the mold with mortar, concrete, etc. from the side of the mold as needed. , Back side of the main bar, etc. Direction and the rear side, it is possible to avoid the defective filling of the rear side of the X-shaped cross section of the connecting spacer, it can improve the quality of legal frame from this plane.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an example of an embedded formwork for forming a method frame according to the present invention. The embedded formwork for forming the method frame includes a foldable and self-supporting skeleton body 1 made of a wire rod (for example, a steel wire rod or a soft iron wire rod), and a pair of rectangular and net-like side formwork 2. It consists of

The skeleton body 1 includes a plurality of (four in the illustrated example) horizontal wires 3a, 3b, 3c and 3d arranged in parallel.
A plurality of (three in the illustrated example) vertical wires 4a, 4b, 4c connected to them by means such as welding, and a pair of side frames 5 formed in a rectangular shape, and a plurality of wires (illustrated in the figure). In the example, three spacers 6 for connection are pivotally connected.

The connecting spacer 6 includes two wire rods 7a, 7 which intersect in an X shape in a plane perpendicular to the side mold 2 in a state where the embedded mold for molding the normal frame is developed in the use posture.
b and lateral wire rods 8a and 8b that are connected to the upper and lower portions of both wire rods 7a and 7b by means such as welding, and are bent and formed at both ends of each wire rod 7a, 7b, 8a and 8b. A ring-shaped portion is rotatably attached to the vertical wires 4a, 4b, 4c.

A plurality of hooks 9 which can be engaged with and disengaged from the horizontal wire rods 3a, 3b, 3c of each side frame 5 of the frame body 1 are attached to the net-shaped side frame 2 by means such as welding. The hooks 9 are engaged with the horizontal wires 3a, 3b, 3c, so that they are detachably attached to the side frames 5 on both sides.

According to the above construction, as shown in FIG. 2 (A), the framework 1 is folded, and the two side molds 1 are folded so as to be overlapped with each other. As shown in FIG. 2 (B), the skeleton body 1 can be carried in, and the skeleton body 1 is deployed in the use posture and made to stand at a predetermined position on the slope, and as shown in FIG. The side mold 1 can be attached to each of the side frames 5 on both sides to be assembled into an embedded mold for forming a legal frame.

Then, for example, as shown in FIG. 3 (A), a required number of upper end main bars 10a and lower end main bars 10b,
The connecting spacer 6 is laid out in a state of being supported by the wire rods 8a and 8b, and the stirrup 11 is wound around and fixed to the main rods 10a and 10b, and thereafter, the low slump is formed inside and outside the embedded mold for forming the legal frame. The mortars (mortar, concrete, etc.) can be sprayed and filled in the mold to form the method frame.

In this case, since the two side molds 2 can be attached / detached in the above-mentioned embedded mold for forming the method frame, various works from the side, for example, the work of binding the lower end main bar 10b to the lower wire rod 8b. Alternatively, the work of binding the stirrup 11 and the lower end main bar 10b, the work of filling the mold with mortar, etc. can be easily performed.

In particular, according to the above construction, the connecting spacer 6 has a bracing structure in which two wire rods 7a and 7b are crossed in an X shape, so that it is very robust and deforms in the width direction. hard. Therefore, when forming the normal frame portion along the contour lines, the main bars 10a, 10 supported by the connecting spacer 6 are formed.
There is no risk that the mold will be deformed in the width direction due to the weight of b, especially due to an unexpected load when an operator steps on the main bars 10a and 10b or when another object is brought into contact with the main bars 10a and 10b. The quality can be improved.

If mortar is sprayed into and out of the mold, filling failure may occur on the back side of the main bars 10a and 10b in the spraying direction. Further, the connecting spacer 6 is used as a side mold. Two wire rods 7a and 7b intersecting in an X shape in a plane perpendicular to the frame, and both wire rods 7a and 7b
When the mortar is filled in the form from one longitudinal end of the main bar, the X-shaped intersection of the connecting spacers There is a possibility that voids (sparse parts such as mortar and concrete) will be formed due to poor filling on the back side of the, but as described above, the side formwork can be removed to open the formwork side surface. Therefore, it is possible to fill the mortar into the mold even from the side of the mold as needed.
It is possible to avoid defective filling on the back side in the blowing direction, such as the back side of 0a, 10b, or on the back side of the X-shaped intersection of the connecting spacer 6, and this also improves the quality of the legal frame.

An example of the procedure for constructing the legal framework is as follows. First, as shown in FIG. 4 (A), after laying the wire mesh 12 on the slope, the lower end main bar 10b is inserted into the stirrup 11 in advance and installed on the wire mesh 12,
After installing the framework 1 of the embedded mold for forming the method frame on it, as shown in FIG. 4B, the lower end main bar 10b is attached to the wire rod 8b of the connecting spacer 6 by a numbered wire or the like (not shown). Band together.

Thereafter, as shown in FIG. 4 (C), the stirrup 11 is lifted, the upper end main bar 10a is inserted into the stirrup 11, and the upper end main bar 10a is mounted on the wire rod 8a of the connecting spacer 6. Place and number line (not shown)
After bundling with, the stirrup 11 is bound to the upper end main bar 10a and the lower end main bar 10b with a numbered wire or the like (not shown), and the bar arrangement work is completed as shown in FIG. 5 (A).

In this case, since the side mold 2 is not attached and the side surface of the mold is open, the connecting spacer 6 is used.
Upper end bar 10a, lower end bar 1 for the wire rods 8a, 8b
The binding work for 0b and the binding work for the stirrup 11 to the upper end main bar 10a and the lower end main bar 10b can be easily performed.

Then, the net-like side frame 2 is attached to the side frame 5 of the skeleton 1, and the side frame 5 is assembled into an embedded mold for forming a legal frame, and as shown in FIG. Low-slump mortars (mortar, concrete, etc.) 13 are sprayed on the inside and outside of the frame to fill the inside of the frame.

In this case, as shown in FIG. 5B, since the side surface of the mold is open when the side mold 2 is removed, the mortar 13 is laterally filled in the mold. Therefore, it is possible to avoid a filling failure on the back side in the spraying direction such as the back side of the main bars 10a and 10b or on the back side of the X-shaped intersection of the connecting spacer 6.

FIG. 6 and FIG. 7 show a legal framework constructed by the above procedure. In the figure, 14 is an anchor, and 15 is a vegetation base material sprayed in a thick layer on the wire net 12 between the slopes. still,
When molding a short framing portion, such as the framing portion along the contour line shown in FIG. 6, as shown in FIG.
The skeleton body 1, the upper end main bar 10a, the lower end main bar 10b, and the stirrup 11 may be assembled in advance and suspended to the installation position on the slope.

8 and 9 show another embodiment. In this embodiment, a lateral wire rod 8 connected to upper and lower portions of the wire rods 7a and 7b intersecting with each other in an X shape by means such as welding.
The lengths of a and 8b are shortened so that both ends of the wire rods 8a and 8b are separated from the vertical wire rods 4a, 4b and 4c of the side frame 5, and the horizontal wire rods 3a, 3b and 3 of the side frame 5 are formed.
c has three stages of upper and lower ends and the center, and hooks 9 of the side formwork 2
Is provided corresponding to these three-stage horizontal wire rods 3a, 3b, 3c. Since other configurations are the same as those of the embodiment described with reference to FIGS. 1 to 7, the same components are designated by the same reference numerals and the description thereof will be omitted.

FIG. 10 shows an example of an embedded mold for forming a normal frame according to the present invention. The embedded formwork for molding this form,
A plurality of horizontal wire rods 3a, 3b, 3c, 3d and a vertical wire rod 4a,
A pair of side frames 5 formed in a rectangular shape with 4b and 4c
In addition, a plurality of connecting spacers 6 made of wire rods are pivotally connected to each other to form a foldable and self-supporting skeleton body 1, while side frames 5 on both sides have rectangular and mesh side molds, respectively. The frame 2 is characterized in that it is swingably attached with one side edge in the vertical direction as a fulcrum. As the wire rod that constitutes the skeleton body 1, a steel wire rod, a soft iron wire rod, or the like is used, similar to the skeleton body 1 in the embedded mold for forming the normal frame shown in FIGS. 1 to 9.

Also with this configuration, since the side surface of the mold can be opened by swinging the side mold 2, the side frame 2 is removed to open the side surface of the mold, and thus the method frame of FIGS. The same effect as the embedded mold for molding can be obtained.

In the illustrated example, a vertically long ring-shaped portion 2a is provided at the upper end portion of the side frame 2, and the side frame 2 is attached to the uppermost horizontal wire 3a of the side frame 5 through the ring-shaped portion 2a.
While the upper end of the side frame 5 is rotatably and movably pivotally connected, the hook 9 attached to the lower end of the side frame 2 is attached to an appropriate horizontal wire rod on the lower side of the side frame 5 (in the example shown in the figure,
Although it is configured to be engaged with the second horizontal wire rod 3c) from the bottom, the ring-shaped portion 2a is provided at the lower end portion of the side frame 2 so that the lower horizontal wire rod 3d of the side frame 5 is provided. The hook 9 is rotatably and movably pivotally connected, while the hook 9 is attached downward to the upper end of the side mold 2 so that the side mold 2 can swing about the lower edge as a fulcrum. May be.

Further, in the embedded formwork for forming the normal frame shown in FIG. 10, a ring is formed at both ends of lateral wire rods 8a and 8b which are connected to upper and lower two places of the wire rods 7a and 7b intersecting in an X shape by means such as welding. The wire portions 8a, 8b are formed by bending the strip-shaped portions.
11 is pivotally attached to the vertical wire rods 4a, 4b, 4c of the side frame 5, but as shown in FIG. 11, the horizontal wire rods 8a, 8b are
To have a structure in which both ends of the wire rods 8a, 8b are separated from the vertical wire rods 4a, 4b, 4c of the side frame 5,
In addition, the horizontal wire rods 3a, 3b, 3c of the side surface frame 5 are formed into three stages of upper and lower ends and the center, and the side formwork 2 is provided with a vertically long ring-shaped portion 2a at its upper end (or lower end). The uppermost (or the lowermost) horizontal wire 3 in the side frame 5
Alternatively, the hook 9 may be pivotally attached to a (or 3c), and the hook 9 may be attached to a position corresponding to the other horizontal wire to be engaged with the horizontal wire.

In each of the above-described embodiments, the stirrup 11 is made by bending one wire (for example, a steel wire) as shown in FIG. 12 (A). As shown in FIG. 12 (B), a combination of two wire rods (for example, steel wire rods) 11a and 11b that are bent into an L shape and both ends are bent into hooks,
You may comprise one stirrup 11. With this configuration, after the main bars 10a and 10b are laid out, the stirrup 1 is placed around the main bars 10a and 10b by the work from the side.
1 can be easily wound and fixed.

FIG. 13 shows another embodiment, in which the X-shaped intersection of the connecting spacer 2 and the vertical wire 4 of the side frame 5 are connected.
It is characterized in that the protrusion preventing member 16 is provided over the central portions of a, 4b and 4c.

According to this structure, the protrusion preventing member 16
The presence of the skeleton makes it difficult for the center portion in the height direction of the skeleton body 1 to be deformed outward, so that the cross section has, for example, 400 cm × 400
Even when it is applied to a large legal frame such as cm, there is an advantage that it is possible to surely prevent the protrusion of the central portion of the lateral surface of the legal frame due to the lateral pressure of the mortar 13 or the like.

In the example of FIG. 13, the protrusion preventing member 1
A ring-shaped portion formed by bending the outer end of the vertical wire 4a,
4b and 4c are rotatably pivotally attached to the central part of FIG.
As shown in FIG. 4, the protrusion preventing member 16 having the hooks 16a and 16b formed on both ends in advance is inserted from the outside of the mesh side mold 2 after the embedded mold for forming the legal frame is assembled.
You may comprise so that it may span over the X-shaped intersection part of the connection spacer 2, and the side formwork 2.

Further, in all the embodiments described with reference to FIGS. 1 to 14, a wire mesh is used as the mesh side formwork 2, but an expanded metal or a punching metal may be used instead of the wire mesh. Good.

[0039]

As described above, according to the present invention, an inexpensive net having a small wire diameter can be used as the side formwork because strength is not required so much. For example, work to bind the bottom main bar to the lower wire,
It is possible to easily perform the work of binding the stirrup and the lower end main bar when wrapping the upper end main bar and the lower end main bar with the stirrup, the work of filling the formwork with mortar, concrete and the like. Moreover, when mortar, concrete, etc. are sprayed into the inside and outside of the formwork to fill, a defective filling portion may occur on the backside of the main bar or the like in the spraying direction. Furthermore, as in the invention of claim 3, the connecting spacer Is composed of two wire rods that intersect in an X shape in a plane perpendicular to the side formwork, and a horizontal wire rod that is laid across two upper and lower portions of both wire rods, the longitudinal direction of the main bar When filling mortar, concrete, etc. into the formwork from one end side, voids (sparse parts such as mortar, concrete, etc.) may be formed due to poor filling of the back side of the X-shaped intersection of the connecting spacer However, since the side formwork can be removed as in the invention of claim 1 or can be swung to open the formwork side surface as in the invention of claim 2, the formwork side can be opened as necessary. From the side as well, the mortar concrete Can be filled with bets like, back, etc. of the main reinforcement, or spraying direction back,
Poor filling of the back side of the X-shaped intersection of the connecting spacer can be avoided, and the quality of the legal frame can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embedded mold for forming a method frame according to the present invention.

FIG. 2 is a diagram illustrating a configuration of an embedded mold for forming a normal frame.

FIG. 3 is a diagram illustrating a configuration of an embedded mold for forming a normal frame.

FIG. 4 is an explanatory view of a procedure of constructing a method frame using an embedded mold for forming a method frame.

FIG. 5 is an explanatory view of a construction procedure following FIG.

FIG. 6 is an explanatory view of a method frame using an embedded mold for forming a method frame.

FIG. 7 is a sectional view of a method frame using an embedded mold for forming a method frame.

FIG. 8 is an exploded perspective view of an embedded mold for forming a method frame according to another embodiment.

FIG. 9 is a diagram illustrating a configuration of an embedded mold for forming a normal frame.

FIG. 10 is a diagram illustrating a configuration of an embedded mold for forming a normal frame according to the present invention.

FIG. 11 is a structural explanatory view of an embedded mold for forming a normal frame according to another embodiment.

FIG. 12 is a diagram illustrating a configuration of a stirrup.

FIG. 13 is a structural explanatory view of an embedded mold for forming a normal frame according to another embodiment.

FIG. 14 is a configuration explanatory view of an embedded mold for forming a normal frame according to another embodiment.

FIG. 15 is a perspective view of a conventional embedded mold for forming a method frame.

[Explanation of symbols]

1 ... Frame, 2 ... Side form, 5 ... Side frame, 6 ... Connection spacer.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaname Hori, 1 at 590 Takao, Tsuyama City, Okayama Prefecture, Japan Vegetation Co., Ltd. (72) Inventor: Kiyoshi Suma, 1 at 590 Takao City, Tsuyama City, Okayama Prefecture Nippon Vegetation Co., Ltd. (72) Inventor Toyoko Noda 1 590, Takao, Tsuyama City, Okayama Nihon Vegetation Co., Ltd. (56) Reference JP-A-2-186017 (JP, A) JP-A-9-21136 (JP, A) JP-A-10-37201 (JP, A) Actually developed 54-146018 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E02D 17/20 104

Claims (3)

(57) [Claims] 1. A foldable and self-supporting skeleton in which a plurality of connecting spacers made of wire rods are pivotally connected to a pair of side frames formed in a rectangular shape by a plurality of horizontal wire rods and vertical wire rods. And a rectangular and net-like side frame on each side frame, and each side frame attached to the side frame.
A plurality of hooks that can be engaged and disengaged with the lateral wire of the ram
In a method for forming a method frame using an embedded mold for method frame forming which is detachably attached by engaging with a wire , the side mold is removed when the mortar is filled, and the side mold is also removed from the side. By filling mortar,
A method for forming a method frame, which is characterized by avoiding defective filling of mortars. 2. A foldable and self-supporting skeleton in which a plurality of connecting spacers made of wire rods are pivotally connected to a pair of side frames formed in a rectangular shape by a plurality of horizontal wire rods and vertical wire rods. A method for forming a method frame using a buried method frame forming method, in which a side frame having a rectangular shape and a net shape is swingably attached to the side frame with one side edge in the vertical direction as a fulcrum. In, when filling the mortar, it is possible to avoid the filling failure of the mortar by rocking the side mold to open the side face of the mold and filling the mortar from the side of the mold. Characteristic method of forming a frame. 3. A connecting spacer, two wire rods intersecting with each other in an X-shape in a plane perpendicular to the side formwork, and both wire rods in a state where the embedded formwork for forming the legal frame is developed in a use posture. The method for forming a legal frame according to claim 1 or 2, wherein the method comprises a horizontal wire rod that is horizontally provided at two upper and lower positions.