JP2023096614A - Form fastener - Google Patents

Abstract

To separate a plurality of connected forms (concrete panel forms) from a building frame in an assembled state without disassembling them, to enable movement and transfer of the forms in a suspended state, and to improve work performance and safety.SOLUTION: A form fastener comprises: an inter-form support fastener 12; and a butter wood fastening fixing tool 13. After placing and solidifying concrete, a form fastening shaft bolt 10 fitted to the inter-form support fastener 12 is rotated to be removed, thereby separating a form (concrete panel form) fixed to butter wood 14 from a building form. The construction period is shortened and work safety is improved by moving and transferring the form in a suspended state. A round washer 5d is retained in a fastening shaft 5c so as not to be removed by setting the diameter of the fastening shaft 5c smaller than that of a pinching part body 5ba of a guide pin 5 fitted to the form fastener. Further, the work performance is improved by forming a seat tool 11 by concrete and burying it and fitting it only through insertion.SELECTED DRAWING: Figure 1

Description

At a position about 12 mm retreated from the end where the weir is connected, a plurality of through-holes are provided at regular intervals through which the guide pins of the formwork connector pass. Concrete formwork fasteners for assembly or dismantling in system formwork called concrete panel form and system formwork called formwork panel in which vertical ribs such as crosspieces or metal forms are fixed to the ends of connecting dams It relates to the form of

It relates to the form of a separate member that supports between opposing formwork dams, or is a part used for formwork assembly.

When pouring concrete during the construction of a wall, which is a concrete structure, after the reinforcement of the structure's skeleton and reinforcing bars is completed, system formwork (hereinafter simply referred to as formwork) is placed on both sides. ) are connected to each other, and a round separator is placed to maintain the required spacing between the opposing formwork, and the horizontal butter material that supports the back of the concrete formwork is arranged and fixed, and between the formwork Concrete structures are constructed by pouring concrete.

In order to maintain the required distance between the facing molds, a fitting called a P-con is screwed to both ends of the round separator and attached. The embedding method is common, but this method requires time and effort to install and remove, and has the disadvantage of extending the construction period because it is embedded with waterproof mortar etc. after removing the P concrete.

In the arrangement and installation of round separators, if the space where the concrete is poured is narrow and workers cannot enter, a formwork called a formwork panel with crosspieces or metal edge ribs fixed around the dam It is necessary to grope the shaft of the round separator through the small through hole formed in the dam panel from the outside of the formwork panel. Tools are developed. However, it takes time to attach and detach the tool.

In the work of assembling and dismantling the formwork on the floor of the external scaffolding, workers are placed above and below and materials are hand-delivered from between the scaffolding, so there is a drawback that the risk of falling accidents is high.

In Japanese National Register No. 3186865, a formwork connector equipped with a guide pin is disclosed for connecting a system formwork called Konpane form, but the bolt is thin because the tightening bolt is provided inside the cylindrical shape. As a result, the strength is insufficient and the shape becomes complicated, resulting in an increase in production cost.

In Japanese Unexamined Patent Application Publication No. 2017-172203, by axially moving the formwork spacing retaining cone and the formwork clamping tool integrally, the formwork spacing retaining cone is screwed off from the end of the separator shaft, and the formwork clamping is performed. A technique has been disclosed in which the attachment, the formwork gap retaining cone, and the formwork panel are removed from the solidified concrete surface while being integrated.

There are metal fittings for fixing crosspieces on the Internet that connect horseshoe-shaped formwork panels that can be attached and removed with a single hammer.

Also, the clip part and the L-shaped part are integrally molded from a synthetic resin material. Configured formwork ties are sold on the internet.

As the formwork, a system formwork called a formwork panel is generally used, in which crosspieces are fixed to the peripheral edge and the middle part of the weir.

Wood plywood or synthetic resin board is generally used for the above-mentioned weir.

The horizontal batters that support the back of the form panel include wooden square timbers, synthetic resin square timbers, single pipes, square steel pipes, etc. In addition, there are screw tightening types and wedge tightening types for the butter timber tightening fittings. there is a type

JP 2011-220002 real climbing 3186865 JP 2015-214849 JP 2020-070648 JP 2017-172203 JP 2013-23878

The formwork on the outside side is separated from the frame as a connected formwork (conpanel form) and lifted to move and relocate.
In addition, since the threaded portion of the separate member that supports the load between the opposing formwork dams 1 is entangled in the through-hole, it is difficult to remove the mold.

To improve the shape of a guide pin provided in a formwork connector.
Another object of the present invention is to improve the configuration of the seat fitting.

In the formwork on the opposite outside side, the formwork fastener is constituted by the inter-formwork support fastener 12 and the butter material tightening fixture 13, and after the concrete is placed and solidified, the inter-formwork support fastener 12 Rotate and pull out the formwork tightening shaft bolt 10 provided in the , separate the formwork (companel form) fixedly connected by the butter material tightening fixture 13 from the skeleton, and lift it up to make it possible to move and relocate. .

The mold connecting tool is composed of a guide pin 5 and a locking pin 6. By making the diameter of the tightening shaft portion 5c smaller than the diameter of the main body 5ba of the guide pin 5, the tightening shaft portion 5c The round washer 5d is fixed and does not come off, making it possible to save labor for mounting the round washer 5d.

The seat fitting joint 11 that supports the gap between the opposing formwork dam plates is made of concrete and is installed by simply inserting it, thereby increasing work efficiency, shortening the construction period, and reducing the construction cost. enable

When the formwork (conpanel form) is dismantled, the formwork tightening shaft bolt 10 or the inter-shaft bolt 102 that penetrates between the formwork sidings 1 by removing the formwork tightening shaft bolt 10 or the inter-shaft bolt 102. The shaft part of the dam does not get entangled in the through hole of the dam 1, making it easier to remove the formwork (conpanel form), increasing work efficiency, shortening the construction period and reducing the construction cost.

The formwork fastener of the present invention is composed of an inter-formwork support fastener 12 and a butter material tightening fixture 13, and after the concrete is placed and solidified, the formwork tightening provided in the inter-formwork support fastener 12 is performed. Rotate and pull out the shaft bolt 10, separate the connecting formwork (companel form) fixed by the butter material tightening fixture 13 from the frame with the butter material 14 fixed, and lift it to make it possible to move and relocate. bottom.

The mold connecting tool is composed of a guide pin 5 and a locking pin 6. By making the diameter of the tightening shaft portion 5c smaller than the diameter of the main body 5ba of the guide pin 5, the tightening shaft portion 5c By adopting a form in which the round washer 5d does not come off, it is possible to save labor for attaching the round washer 5d, increase work efficiency, shorten the construction period, and reduce the construction cost.

The seat fitting cone 11 that supports the gap between the opposing formwork dams is made of concrete and is installed simply by inserting it, thereby increasing work efficiency, shortening the construction period and reducing the construction cost. .

FIG. 2 is a side cross-sectional view showing the state of use of a formwork fastener composed of an inter-formwork support fastener and a butter material tightening fixture; FIG. 2 is an explanatory view showing a cross section taken along line A-A and line B-B of FIG. 1, and an enlarged plane cross-sectional view showing how the guide pin is used. A flat cross-sectional view showing a formwork fastening state, and a flat cross-sectional enlarged view showing a connection state of the formwork. A formwork fastener that connects an inter-shaft bolt to a formwork tightening shaft bolt. Explanatory drawing showing the screw connection state of a formwork tightening shaft bolt and a round separator, and explanatory drawing showing the butter material tightening fixing method. Explanatory drawing showing the connection state of the system formwork called a control panel form, and arrangement|positioning of metal fittings. The left side is an explanatory view of a side cross section showing a large formwork on the side of a scaffold that is connected to a plurality of sheets, the right side is an enlarged explanatory view of the separated formwork, and the right side is a reference drawing for aligning bolt shafts.

1 to 7, it is only an example of the formwork fastener according to the present invention, and can be appropriately modified within the scope of the technical idea of the present invention.

The system formwork used in this application has crosspieces and edge ribs 2 made of metal or synthetic resin, which are provided at regular intervals with connection holes 4 through which guide pins 5 pass through the connection part of the weir 1 . A system formwork that is fixed by a fixture 3 such as a nail or bolt at a position recessed about 12 mm from the end face of the edge rib 2 and a vertical rib 2a in the middle part of the edge rib 2, and the end face of the weir plate 1 There is a system formwork in which longitudinal ribs 2a for connection made of crosspieces, metal, or synthetic resin are fixed by fasteners 3 such as nails or bolts, and the longitudinal ribs 2a are arranged in the middle.
(In this application, it may simply be called a formwork).

The formwork connector that connects the formwork (conpanel form) is composed of a guide pin 5 and a locking pin 6. The form of the guide pin 5 is a round steel having a required length and a taper that reduces the tip diameter. Immediately after that, a through hole 5a for inserting a locking pin 6 is formed, and behind that is a narrow attachment portion main body 5ba, and behind that is a tightening shaft portion smaller in diameter than the clamping portion main body 5ba. 5c, a male screw is formed on the entire length of the tightening shaft portion 5c, a round washer 5d is inserted into the male screw portion, a tightening nut 5e is screwed to the rear portion, and a projection is tightened at the end to prevent the nut 5e from coming off. 5f.
By making the diameter of the tightening shaft portion 5c smaller than the diameter of the main body 5ba of the narrowing portion of the guide pin 5, the round washer 5d is retained on the tightening shaft portion 5c and does not come off. It saves labor and increases work efficiency, making it possible to shorten the construction period and reduce construction costs.

As shown in FIG. 2, which is an enlarged horizontal cross-sectional view showing the state of use of the guide pin, the guide pin 5 has a tapered shape with a required length and a tapered tip diameter, and immediately after that, the locking pin 6 is tapered. A through-hole 5a for inserting is formed, behind which is a narrow attachment portion main body 5ba, behind which is a tightening shaft portion 5c having a smaller diameter than the clamping portion 5b, and the entire length of the tightening shaft portion 5c A male screw is formed, a round washer 5d is inserted into the male screw portion, a tightening nut 5e is screwed to its rear portion, and a protrusion 5f is formed at the end to prevent the tightening nut 5e from coming off.

With this configuration, since the tightening shaft portion 5c is smaller in diameter than the clamping portion main body 5ba, the round washer 5d is retained on the tightening shaft portion 5c and does not come off. Achieved a reduction in construction costs.

Further, by making the diameter of the tightening shaft portion 5c smaller than the diameter of the main body 5ba of the narrowing portion of the guide pin 5, the tightening shaft portion 5c of the guide pin 5 is formed on the side surface of the connecting hole 4 of the edge rib 2. The thread is not caught and the guide pin 5 can be smoothly inserted and pulled out.

The formwork fasteners shown in FIGS. 1 and 2 consist of inter-formwork fasteners 12 that support the opposing formwork (companel form) dams 1 and butter material clamping fixtures that support the back of the formwork. 13.

The form of the formwork fastener is to erect the first formwork (conpanel form), then erect the second formwork (conpanel form) to be connected, and connect the formwork (conpanel form). Form) Between the edge ribs 2 fixed to the dam 1, the mounting member 13a provided in the butter material tightening fixture 13 is fitted in a required place, and the connection hole 4 between the edge ribs 2 and the mounting member 13a are fitted. When the guide pin 5 is inserted into the connecting hole 4 provided between the edge ribs 2, the locking pin 6 is inserted into the through hole 5a that appears, and the tightening shaft of the guide pin 5 is inserted. Rotate and tighten the tightening nut 5e provided on the portion 5c to connect. This operation is repeated until a predetermined position is reached, and the butter material 14 is placed above and below the shaft bolt 13c having a hexagonal head provided by the mounting member 13a. Then, by rotating and tightening the tightening nut 13e via the seat 13d, the butter material 14 is fixed to the connected formwork (control panel form), and then the connected formwork (control panel form). A round separator provided by a separate member 8 are threadedly connected, and the connected formwork (control panel form) edge ribs 2 are tightened by rotating the tightening nut 10b provided on the formwork tightening shaft bolt 10 via a stop 10a. As a result, the formwork (conpanel form) on one side facing each other is assembled, and the separate member is self-supportingly fixed.

Subsequently, the reinforcement arrangement is sandwiched, and the formwork tightening shaft bolt 10 is threadedly connected to the male screw of the round separator 8 provided in the separate member self-supportingly fixed to the assembled formwork (conpanel form), and the opposite side is connected. The first mold is formed by aligning the center of the semi-circular through-hole provided in the connecting part of the (return side) formwork (conpanel form) weir plate 1 with the axis center of the formwork tightening shaft bolt 10. A frame (conpane form) is erected, and a semicircular through hole provided in the first form (conpane form) sill plate 1 and a semicircular shape provided in the second form (conpane form) Between the edge ribs 2 that are sandwiched between the through-holes and then fixed to the formwork (conpanel form) weir plate 1 that is connected, the mounting member 13a provided in the butter material tightening fixture 13 is attached at a required location. The connecting hole 4 between the edge ribs 2 is aligned with the through hole 13b of the mounting member 13a, and the through hole 5a appears when the guide pin 5 is inserted into the connecting hole 4 provided between the edge ribs 2. Inserting the locking pin 6 and rotating and tightening the tightening nut 5e provided on the tightening shaft 5c of the guide pin 5, this operation is repeated until a predetermined position is reached, and then the above-mentioned joint between the edge ribs 2 is repeated. By rotating and tightening the tightening nut 10b through the intermediary seat 1Oa fixed to the formwork tightening shaft bolt 10, the opposing formwork (companel form) sill plate 1 is supported, and then the mounting member 13a is The butter material 14 is arranged above and below the shaft bolt 13c having a hexagonal head, and the tightening nut 13e is rotated and tightened via the stop seat 13d, so that the butter is attached to the connected formwork (companel form). The material 14 is fixed and the formwork (conpanel form) on both sides facing each other is assembled to support the concrete load to be poured.

According to this form, after the concrete has been placed and solidified, by rotating and extracting the formwork tightening shaft bolt 10 provided in the formwork support fastener 12, a plurality of formwork (conpanel form) are connected. Since the butter material 14 can be separated in a fixed state, lifted and moved, part of the formwork assembly and dismantling work can be omitted, and the construction period and construction cost can be reduced.

As another method for fixing the ends of the butter material 14, as shown in FIG. A plate nut 9 is screwed to the part, and a seat fitting cone 11 is inserted. A form tightening shaft bolt 103 is threadedly connected to a male thread of the joint bolt 102 that appears when the joint bolt 102 is inserted into a through hole through which the shaft portion of the joint bolt 102 penetrates. There is also a method of arranging butter material 14 on the upper and lower sides of the formwork, and rotating and tightening the tightening nut 10b via a stop 10a that is fixed to the formwork tightening shaft bolt 103. As shown in FIG.

The support fastener 12 shown in FIG. 2 is composed of a separate member having a round separator 8, a mold tightening shaft bolt 10, a stop 10a, a tightening nut 10b, and a temporary tightening nut 10e.

The separate member is a member that holds plate nuts 9 screwed on both ends of the round separator 8, inserts a seat fitting joint 11, and holds the dimension between the formwork weir plates 1. As shown in FIG.

The round separator 8 is formed by forming male threads on both ends of a round bar having a required length, screwing a plate nut 9 onto the male threads, and having stop protrusions 8a that regulate the movement of the plate nut 9. formed on one side.

The shape of the formwork tightening shaft bolt 10 is formed by forming a male screw from a round steel of a required length except for the portion where the seat fitting cone 11 and the weir plate 1 pass through, and then attaching it to the tip of the round steel. A female screw is formed for screwing connection with the male screw of the round separator 8, and the rear part forms a male screw to the end, and a temporary tightening nut 10e is screwed from the end of the male screw. A plate-like protrusion 10c is formed at the distal end to prevent detachment and to lock the tool.

The butter material tightening fixture 13 fixes the butter material 14 to the back surface of the formwork (control panel form), supports a plurality of vertical ribs 2a, and supports the connected formwork (control panel form) in a row. .

As shown in FIGS. 1 and 2, the butter material tightening fixture 13 is composed of a substantially U-shaped mounting member 13a, a hexagonal head bolt 13c, a stop 13d, a tightening nut 13e, and the like. The mounting member 13a is formed by forming a flat steel plate having a required length into a substantially U-shape having a back surface and both side surfaces, and through holes matching the connecting holes 4 of the edge ribs 2 on both side surfaces of the mounting member 13a. 13b is formed, and a through hole through which a hexagonal-headed shaft bolt 13c penetrates is formed in the center of the back surface. 13d is inserted and a tightening nut 13e is screwed thereon, and a plate-like projection 13f is formed at the end to prevent the tightening nut 13e from coming off. By rotating the tightening nut 13e through and fixing by tightening, the back surface of the connected formwork (conpanel form) is supported.

The form of the checker 10a or 13d is a member that fixes the edge ribs 2 of the connected formwork (conpanel form) or the butter material 14, and cut scraps such as crosspieces having the required length and required strength A flat steel bent into a substantially U-shape to prevent slippage is fixed to the machined main body with a wood screw or the like, and a through hole 10d through which the formwork tightening shaft bolt 10 penetrates is formed in the center.

The form of the check pad 10a and the check pad 13d are the same.
With this form, by using scrap scraps such as crosspieces, it is possible to reduce manufacturing costs by effectively utilizing crosspieces and the like.

The seat fitting cone 11 is made of concrete material or mortar material and has a substantially barrel-shaped appearance, and is formed in a shape with a small outer diameter on the side of the weir plate 1 and a shape with a large diameter on the side of the plate nut 9, A through hole 11a through which the formwork tightening shaft bolt 10 penetrates is formed in the axis.
This member is formed by inserting the formwork tightening shaft bolt 10 into the through hole 11a through which the formwork tightening shaft bolt 10 penetrates provided in the weir plate 1, and inserting the seat fitting cone 11 into the portion that appears when the formwork tightening shaft bolt 10 is inserted. A round separator 8 with a plate nut 9 screwed to the female screw at the tip is screwed and connected to support between the weirs 1 of the opposing formwork (control panel form), and the plate nut 9 and the formwork (control panel form) Form) By sandwiching it between the weirs 1, it comes in close contact with the weirs 1 and prevents the intrusion of slag coming out of the concrete. Since it is an embedded type, there is no need to remove it, which improves work efficiency, shortens the construction period, and reduces construction costs.

The formwork fastener shown in FIG. A through-hole 5a appears by inserting a guide pin 5 into a connecting hole 4 between edge ribs 2 fixed to a fence plate 1 of a formwork (conpanel form) to which an attached shaft bolt 101 is screwed and connected. The formwork (control panel form) is connected by inserting the locking pin 6 into the guide pin 5 and tightening it by rotating the tightening nut 5e through the round washer that stays on the tightening shaft portion 5c of the guide pin 5. The formwork tightening shaft bolt 101 is inserted into a plurality of through holes 10d provided in the connection part of the formwork (companel form) weir plate 1, and the female screw of the formwork tightening shaft bolt 101 that appears is separated. The male thread of the round separator 8 provided in the member is threadedly connected, the butter material 14 is arranged above and below the formwork clamping shaft bolt 101 that is threadedly connected, and the clamping nut 10b is attached via the seat 10a. By rotating and tightening to fix the butter material 14, the formwork (conpanel form) connected on one side facing each other is assembled.

Next, sandwiching the bar arrangement, the center of the semi-circular through-hole provided in the connecting portion of the opposite other side (return side) formwork (conpanel form) sill plate 1 and the axis of the formwork tightening shaft bolt 101 The first formwork (control panel form) is erected together with the core, and a plurality of semicircular through holes provided at the connection part of the first formwork (control panel form) dam plate 1 and the second sheet The formwork (companel form) is sandwiched between the semicircular through holes provided in the connecting part of the weir 1, and then the guide pin 5 is inserted into the connecting hole 4 between the edge ribs 2 fixed to the connected weir 1 By inserting the locking pin 6 into the through hole 5a that appears by inserting the guide pin 5, the formwork (control panel Next, the butter material 14 is placed above and below the formwork clamping shaft bolt 101 sandwiched and fixed between the formworks (conpanel form) connected to each other, and tightened via the seat 10a. By rotating and tightening the attached nut 10b to fix the butter material 14, the formwork (companel form) on both sides facing each other is assembled and supports the load of the poured concrete.
With this form, after solidification, by rotating and extracting the formwork tightening shaft bolt 101, the formwork (conpanel form) can be easily dismantled, and damage to the formwork is reduced, increasing the number of uses. This makes it possible to shorten the construction period and reduce construction costs. In addition, there is a feature that the butter material tightening fixture 13 is omitted.

The shape of the formwork tightening shaft bolt 101 is formed by forming a female screw threadedly connected to the male screw of the round separator 8 at the tip of a round steel of a required length, and a through hole of the seat fitting cone 11 from the tip thereof. Excluding the length dimension and the thickness dimension of the weir 1, a male screw is formed to the end, and a temporary tightening nut 10e for the backrest of the formwork weir 1 is screwed into the male screw from the end, and then, A plate-like projection 10c is formed at the end to prevent the tightening nut 10b from coming off by inserting the stop 10a and screwing the tightening nut 10b.

The configuration of the formwork fastener shown in FIG. 4 is composed of a separate member that supports the opposing formwork panel dams 1, an inter-shaft bolt 102, a formwork tightening shaft bolt 103, a stop 10a, and a tightening nut 10b. Configured.

The form of the intershaft bolt 102 is such that a female screw is formed on the tip of a round steel of a required length to be screwed into the male screw of the round separator 8, and the length dimension of the through hole of the seat fitting cone 11 is formed from the tip of the female screw. Then, the thickness dimension of the weir plate 1 is secured, the rear part forms a male thread for screwing connection to the formwork clamping shaft bolt 103, the upper and lower parts of the end part are scraped off, and a pinching tool is fitted. A generally convex knob 102a is formed for the purpose.

The formwork clamping shaft bolt 103 has a desired thickness and length, and has a female thread at the tip thereof to be screwed into the male thread of the inter-axis bolt 102. A temporary tightening nut 10e for the backrest, which also serves to prevent it from coming off, is screwed on, then a stop 10a is inserted from the end side, and a tightening nut 10b is screwed on to prevent the tightening nut 10b from coming off and to lock the tool. A plate-shaped projection 10c for the

The enlarged view of FIG. 4 showing the connected state of the formwork panels shows the fixed state in which the vertical ribs 2a fixed to the connecting portions of the dam 1 are aligned and connected by tightening with connecting fixtures 7 such as wood screws.
With this configuration, the side surfaces of the vertical ribs 2a of the connecting portion are brought into close contact with each other, so that the dismantling work of the formwork panel is troublesome and damage to the formwork panel increases. There is a feature that the connecting hole 4 becomes unnecessary.

The enlarged horizontal cross-sectional view shown on the right side of FIG. By inserting the pin 6 and rotating and tightening the tightening nut 5e through the round washer 5d that stays on the tightening shaft portion 5c, the weir plates 1 come into contact with each other, and at the same time the rotation of the tightening nut 5e is stopped. It shows a state in which the formwork (conpanel form) dam 1 is connected while maintaining the space between them.

The configuration of the formwork fastener in FIG. The first and second vertical ribs 2a are fixed and connected with a connecting fixture 7 such as a wood screw, and this connecting work is repeated until a desired position is reached. A shaft bolt 102 is threadedly connected to both ends of the joined round separators 8 , a seat fitting joint 11 is inserted into the shaft bolt 102 , and the shaft bolt 102 is inserted into a plurality of through-holes provided in the formwork panel weir plate 1 . A formwork tightening shaft bolt 103 is threadedly connected to a screw portion that appears when it is inserted into the hole. When the tightening nut 10b is rotated and tightened through the stop 10a which stays on the liner 14, the butter material 14 is fixed, the back surface of the connected formwork panel is supported, and the separator on the surface of the dam 1 of the said connected formwork panel A round separator 8 provided on the member is fixed by itself.

Subsequently, the bar arrangement is sandwiched, and the axial center of the shaft bolt 102 provided in the round separator 8 is aligned with the through hole through which the shaft bolt 102 provided in the weir plate 1 penetrates, and the first formwork is formed. Insert the panel, insert the second formwork panel by the same procedure as above, match the first formwork panel and the second formwork panel to be connected, and vertical ribs 2a fixed to the weir plate 1 They are fixed and connected by connecting fixings 7 such as wood screws, this connecting work is repeated until the required position, and the formwork tightening shaft bolt is attached to the threaded portion of the shaft bolt 102 that appears through the weir plate 1. 103 are threadedly connected, the butter material 14 is arranged above and below the formwork tightening shaft bolt 103, and the tightening nut 10b is rotated through the seat 10a fixed to the formwork tightening shaft bolt 103 to be tightened. , supporting the back of the connected formwork panel on the other side, and the formwork panels on opposite sides are assembled to support the load of the pouring concrete.
In this form, after the concrete solidifies, the inter-shaft bolts 102 are rotated and pulled out, and the inter-shaft bolts 102 caught in the through-holes of the weir plate 1 are removed, thereby facilitating demolding. There is a feature that the attachment position of the separate member that supports between the plates 1 is not limited.

The formwork fasteners shown in FIGS. 1 and 2 are composed of formwork connectors, formwork support fasteners 12, and butter material tightening fixtures 13. After the concrete is placed and solidified, the formwork fasteners By extracting the formwork tightening shaft bolt 10 provided in the tightening tool 12, the butter material tightening fixture 13 and the butter material 14 are fixed, and a plurality of formwork (companel foam) are connected to the frame. It is a form to separate from.

The inter-formwork support fastener 12 is composed of a separate member and a formwork tightening shaft bolt 10. The formwork tightening shaft bolt 10 comprises a stop 10a, a tightening nut 10b, and a temporary tightening nut 10e. Equipped with

In the form of the separate member, a plate nut 9 is screwed to the threaded portions on both ends of the round separator 8, and a seat fitting joint 11 is inserted to support the weir plates 1 of the opposing formwork (conpanel form). be.

1 and 2, the formwork fasteners shown in FIGS. Next, between the edge ribs 2 fixed to the connected formwork (companel form) weir plate 1, the mounting member 13a provided in the butter material tightening fixture 13 is fitted at a required place, and the edge rib The connecting hole 4 between the two members is aligned with the through hole 13b of the mounting member 13a, and the guide pin 5 is inserted into the connecting hole 4 provided between the edge ribs 2. A locking pin 6 is inserted into the through hole 5a that appears. Then, by rotating and tightening the tightening nut 5e provided on the tightening shaft portion 5c of the guide pin 5, the formwork (companel form) weir plate 1 abuts and is connected at the same time, and the installation This operation is repeated until the member 13a is also fixed, and then the butter material 14 is arranged above and below the shaft bolt 13c with a hexagonal head inserted into the mounting member 13a, and the stop 13d is installed. By rotating and tightening the tightening nut 13e through, the back surface of the plurality of formwork (control panel form) to be connected is supported and aligned in a straight line, and the aligned plural formwork (control panel form) Inserting the formwork tightening shaft bolt 10 from the back side of the formwork (conpanel form) into the through hole through which the formwork tightening shaft bolt 10 provided in the connecting part penetrates the female screw that appears on the separate member. The male screw of the round separator 8 provided is threadedly connected, and the formwork tightening shaft bolt is inserted between the edge ribs 2 fixed to the connected formwork (companel form) dam plate 1 through a stop 10a. By rotating and tightening the tightening nut 10b screwed to 10, a plurality of separate members are self-fixed on the surface of the formwork (control panel form) weir plate 1, and the opposite formwork (control panel form) on one side is assembled.

Subsequently, the formwork clamping shaft bolt threadedly connected to the male screw of a round separator 8 provided in a plurality of separate members self-supportingly fixed to the surface of the formwork (companel form) weir plate 1 sandwiching the reinforcement arrangement. 10 and the core of the semicircular through-hole provided at the connection part of the formwork (conpanel form) weir plate 1 are combined to form the first formwork (conpane form) and the second sheet. Sandwiched with a formwork (control panel form), next, the mounting member 13a is fitted in a required place between the edge ribs 2 of the connected formwork (control panel form) dam 1, and the edge ribs 2 are connected The hole 4 and the through hole 13b of the mounting member 13a are aligned with each other, and when the guide pin 5 is inserted into the connecting hole 4 provided between the edge ribs 2, the locking pin 6 is inserted into the through hole 5a that appears and the guide pin 5 is inserted. Rotate and tighten the tightening nut 5e provided on the tightening shaft portion 5c of the pin 5. This work is repeated until a predetermined position is reached. By rotating and tightening the tightening nut 10b through the retaining seat 10a, the connected formwork (control panel form) weir plate 1 is supported and fixed to the formwork (control panel form) weir plate 1. The butter material 14 is arranged above and below the shaft bolt 13c having a hexagonal head included in the mounting member 13a and sandwiched between the edge ribs 2, and the tightening nut 13e is rotated and tightened via the seat 13d. Supports the back of the formwork (control panel form) to which the butter material 14 is connected, and the formwork (control panel form) on the other side is assembled, and the concrete load that is poured into the connected formwork (control panel form) on both opposing sides is supported.
For reference, the method of fixing the butter material 14 is shown in FIG.

As another method of fixing the ends of the butter material 14, there is a method of screwing and connecting inter-shaft bolts 102 to both ends of the round separators 8 provided in the separate member as shown in FIG. A plate nut 9 is screwed to the threaded portions at both ends of the dam plate 1, and a seat fitting cone 11 is inserted. A frame tightening shaft bolt 103 is threadedly connected to a threaded portion of the shaft bolt 102 that appears when the shaft portion of the shaft bolt 102 is inserted into a through hole through which the shaft portion penetrates. There is a method in which the butter material 14 is arranged on the upper and lower sides of the frame, and the tightening nut 10b is rotated through the seat 10a which is fixed to the formwork tightening shaft bolt 103 to tighten and fix.

After pouring concrete into the assembled formwork (conpanel form) and solidifying it, the formwork is dismantled. It is possible to separate from the body while the butter material 14 is fixed to (companel foam), lift it up, and move it.
Due to this form, there is a feature that the formwork on the external scaffold side can be moved to the floor directly above.

The form fastener shown in FIG. 3 is composed of a form connector, a separate member and a form tightening shaft bolt 101 .
The formwork connector for connecting the formwork (conpanel form) is composed of a guide pin 5 and a locking pin 6. The form of the guide pin 5 is a round steel with a required length and a taper with a small tip diameter. and a through hole 5a for inserting the locking pin 6 is formed immediately after that. A male screw is formed on the entire length of the tightening shaft portion 5c, a round washer 5d is inserted into the male screw portion, a tightening nut 5e is screwed to the rear portion, and the end is tightened to prevent the nut 5e from coming off. A protrusion 5f is formed.
The formwork tightening shaft bolt 101 is made of a round steel of a required length, and has a female thread formed at the end of the round steel for screwing connection with the male thread of the round separator 8. Secure the part through which the weir plate 1 penetrates, form a male thread to the rear end, screw the temporary tightening nut 10e from the end, insert the stop 10a in order, and screw the tightening nut 10b, A plate-like projection 10c for preventing the tightening nut 10b from coming off and for retaining a tool is formed at the end.
The formwork fastener is engaged in a through-hole 5a that appears when a guide pin 5 is inserted into a connecting hole 4 between edge ribs 2 fixed to a dam plate 1 of a formwork (conpanel form) to be connected. The formwork (control panel form) is connected by inserting the pin 6 and rotating and tightening the tightening nut 5e via the round washer 5d that stays on the tightening shaft 5c of the guide pin 5. The formwork tightening shaft bolt 101 is inserted into a plurality of through holes 10d provided in the connection part of the formwork (conpanel form), and the external thread of the formwork tightening shaft bolt 101 and the separate member are provided. The male screw of the round separator 8 is threadedly connected, the butter material 14 is arranged above and below the formwork clamping shaft bolt 101, and the tightening nut 10b is rotated and tightened via the stop 10a to fix the butter material 14. By doing so, the connected formwork (control panel form) on one side facing each other is assembled, and the plurality of separate members attached to the connection part of the connected formwork (control panel form) are self-fixed.

Subsequently, the bar arrangement is sandwiched, and the formwork tightening shaft bolt 101 is threadedly connected to the male screw of the round separator 8 provided in the plurality of separate members that are self-supporting. Form) A first formwork (conpanel form) is erected by aligning the center of the semi-circular through hole provided in the connecting part of the weir 1 and the axis of the formwork tightening shaft bolt 101, The formwork is tightened between the semicircular through-holes provided in the first formwork (companie form) dam plate 1 and the semicircular through-holes provided in the second formwork (companie form). By inserting the shaft bolt 101 and then inserting the guide pin 5 into the connecting hole 4 between the edge ribs 2 fixed to the connected weir plates 1, the locking pin 6 is inserted into the through hole 5a that appears. By rotating and tightening the tightening nut 5e through the round washer 5d fixed to the tightening shaft 5c of the guide pin 5, the formwork (companel form) is connected, and the male of the round separator 8 provided in the separate member. The butter material 14 is placed above and below the formwork clamping shaft bolt 101 screwed to the screw, and the butter material 14 is fixed by rotating and tightening the tightening nut 10b via the stop 10a. Formwork (conpanel form) is assembled on both sides to support the load of poured concrete.
In this form, after the concrete has solidified, the formwork tightening shaft bolt 101 is rotated and pulled out, so that the formwork tightening shaft bolt 101 caught in the through-hole of the weir 1 is removed, making demolding easier. In addition, there is a feature that the butter material tightening fixture 13 is omitted.

The shape of the formwork tightening shaft bolt 101 is such that a female screw is formed at the tip of a round steel of a required length to be screwed into the male screw of the round separator 8, and the seat fitting cone 11 and the weir plate 1 are formed from the tip. A male screw is formed to the end of the rear part, a temporary tightening nut 10e and a stop 10a are inserted from the end of the threaded part, and the tightening nut 10b is screwed, A plate-shaped projection 10c for tool engagement is formed.

The configuration of the formwork fasteners shown in FIG. The longitudinal ribs 2a fixed to the joints of the dam 1 are formed at desired positions with pilot holes through which a plurality of wood screws or the like pass, and are connected and fixed by connecting fixtures 7 such as wood screws. is repeated until a desired position is reached, and an intershaft bolt 102 is inserted into the male screw of the round separator 8 in which the plate nut 9 is screwed to both ends of the screw portion of the round separator 8 provided in the separate member that supports the weir plate 1. , insert the seat fitting cone 11 into the shaft bolt 102, and insert the shaft bolt 102 into the plurality of through holes 10d provided in the form panel dam plate 1. A formwork tightening shaft bolt 103 is threadedly connected to a male screw that appears by inserting the formwork. By rotating and tightening the tightening nut 10b through the stop seat 10a, the back surface of the connected formwork panel is supported, and the connected formwork panel on one side is assembled, and then attached to the weir 1 The separate member is self-fixed.
Subsequently, the bar arrangement is sandwiched, and a plurality of through-holes through which the shafts of the inter-shaft bolts 102 provided in the formwork panel dam 1 penetrate are aligned with the axial centers of the inter-shaft bolts 102 of the separate members that are self-supporting and fixed. The second formwork panel is pushed in, the axial centers of the shaft bolts 102 of the separate members that are self-supporting and fixed are aligned by the same procedure as above, the second formwork panel is pushed in, and then the connected formwork panel weir The longitudinal ribs 2a fixed to the connecting portion of the plate 1 are formed with pilot holes at required positions through which a plurality of wood screws or the like pass, and are connected and fixed by a connecting fixture 7 such as a wood screw or the like. Repeat until a desired position is reached, and the formwork clamping shaft bolt 103 is threadedly connected to the threaded portion of the shaft bolt 102 that is exposed from the through hole of the connected formwork panel weir. By arranging butter material 14 above and below the attached shaft bolt 103 and rotating and tightening the tightening nut 10b through the seat 10a that stays on the formwork tightening shaft bolt 103, the molds (panels) on both sides facing each other are tightened. is assembled to support the concrete load to be poured.

The inter-shaft bolt 102 is formed by forming a female screw at the tip of a round steel piece of a required length to be screwed into the male screw of the round separator 8, and extending from the tip of the screw to the through-hole of the seat fitting joint 11 and the weir plate 1. The thickness dimension of is secured, and the rear part forms a male screw for screwing connection with the female screw of the form tightening shaft bolt 103, scrapes off a part of the upper and lower ends of the male screw, and removes a tool etc. A generally convex knob 102a for locking is formed.

The shape of the formwork clamping shaft bolt 103 is such that the front end of a round steel of a required length is formed with a female thread to be screwed into the male screw of the intershaft bolt 102, and the rear portion is formed with a male thread to the end. Next, a temporary tightening nut 10e is screwed from the end of the male thread, a stop 10a is inserted, and a tightening nut 10b is screwed together. shaped protrusion 10c.

The form of the checker 10a or 13d is composed of a wooden main body and a cover that prevents displacement by bending flat steel into a substantially U-shape, and the wooden main body has a required length and a required strength. The cover for preventing slippage is formed by bending a flat steel into a substantially U-shape and extending both sides slightly longer than the main body. The steel is bent into a substantially U-shape and a cover that prevents displacement is fixed with a wood screw or the like, and a through hole 10d is formed in the center through which the formwork tightening shaft bolt 10 or the shaft bolt 13c with a hexagonal head penetrates. become.
This checker 10a or checker 13d is characterized by effectively using a piece of wood such as a crosspiece.

FIG. 5 is an explanatory view showing the state of threaded connection between the A-frame tightening shaft bolt 10 and the round separator 8, and the B--an explanatory view showing the fixed state of the mounting member 13a included in the butter material tightening fixture 13. is.

FIG. 6 is an explanatory view showing the connection state of the system formwork called control panel form, the left side is a partial front view, and the right side is a sectional side view.

The left side of FIG. 7 is an explanatory view of a side cross section showing a large formwork on the side of a scaffold that is connected to a plurality of sheets, the right side is an enlarged explanatory view of the formwork separation state, and the right side is a reference diagram of bolt axis alignment. is.

For rotating the nuts and the like used for assembling or dismantling the formwork, a pinching tool, a spanner, an impact drill, or the like is properly used as necessary.

The formwork fasteners are inter-formwork support fasteners 12 that support the opposing formwork (conpanel form), and a butter material tightening fixture 13 that supports the concrete load on the back of the formwork (conpanel form). By rotating and extracting the formwork tightening shaft bolt 10 provided in the inter-formwork support fastener 12 with the butter material tightening fixture 13 left after the concrete is placed and solidified, It is possible to separate from the frame as a large formwork in which a plurality of sheets of butter material 14 are connected while being fixed, lift it up, and move it to the floor immediately above.
This configuration has the feature that most of the formwork assembly or dismantling work can be omitted.

After the concrete has been placed and solidified, the inter-formwork support fasteners 12 are removed by rotating the formwork-tightening shaft bolts 10 or inter-shaft bolts 102, thereby tightening the formwork clamps entangled in the through-holes of the weirs 1. Since the attached shaft bolt 10 or the intershaft bolt 102 is removed, demolding is facilitated and damage to the formwork (conpanel form) is reduced.

In the butter material tightening fixture 13, a mounting member 13a provided in the butter material tightening fixture 13 is attached between the edge ribs 2 to which the formwork (conpanel form) is connected, and the shaft bolt provided in the mounting member 13a is attached. By attaching and fixing the butter material 14 above and below 13c, the vertical ribs 2a attached between the edge ribs 2 are supported on the back of the formwork (control panel form), and the connected formwork (control panel form) is linearly There is a feature that aligns to

The mold connecting tool is composed of a guide pin 5 and a locking pin 6, and by making the diameter of the tightening shaft portion 5c smaller than the diameter of the narrow attachment portion main body 5ba of the guide pin 5, the tightening shaft portion There is a feature that the round washer 5d stays on 5c and does not come off.
This configuration saves the time and effort required to attach the round washer 5d, improves work efficiency, shortens the construction period, and reduces the construction cost.

A seat fitting joint 11 for supporting between the weirs 1 can be attached only by inserting it, and since it is an embedded type made of concrete, it does not need to be removed, thereby shortening the construction period and reducing the construction cost.

The form of the check 10a and the check 13d is to press and support the edge ribs 2 of the connected forms or the butter material 14, so that cut pieces such as crosspieces having the required length and required strength are used, In order to prevent the edge rib 2 or the butter material 14 from slipping, the flat steel is bent into a substantially U-shape, and a cover slightly longer than the main body of the wooden material is fixed with a wood screw or the like, and a formwork tightening shaft bolt is installed in the center. or a through hole through which the shaft bolt 13c passes.
The check 10a and the check 13d are characterized in that they are made of cut pieces such as crosspieces, so that the crosspieces and the like are effectively used.

REFERENCE SIGNS LIST 1 dam plate 1a connecting portion 2 edge rib 2a vertical rib 3 fixture
4 connecting hole 5 guide pin 5a through hole 5b narrow attachment portion 5ba narrow attachment portion main body 5c tightening shaft portion 5ca tightening margin 5d round washer
5e tightening nut 5f projection 6 locking pin
7 Connection Fixture 8 Round Separator 8a Stop Projection 9 Plate Nut 10 Form Tightening Shaft Bolt 101 Form Tightening Shaft Bolt 102 Intermediate Shaft Bolt 102a Knob 103 Form Tightening Shaft Bolt 10a Stop 10b Tightening Nut 10c Plate-like Projection 10d Through-hole 10e Temporary tightening nut 11 Seat fitting cone 11a Through-hole 12 Formwork support fastener
13 butter material tightening fixture 13a mounting member 13b through hole
13c Shaft bolt 13d Stop 13e Tightening nut 13f Plate-like projection 14 Butter material
15 Formwork bracket
16 Concrete screw 17 Wood screw

Claims (7)

The formwork fasteners consist of formwork connectors, inter-formwork support fasteners (12) and butterwood clamping fixtures (13).
The shape of the formwork connector is composed of a guide pin (5) and a locking pin (6), and the shape of the guide pin (5) is a round steel having a required length and a taper with a small tip diameter. Immediately after that, a through hole (5a) for inserting a locking pin (6) is formed. A tightening shaft (5c) having a smaller diameter is formed, and a male thread is formed along the entire length of the tightening shaft (5c). and form a projection (5f) that tightens the end to prevent the nut (5e) from coming off.
The inter-formwork support fastener (12) is composed of a separate member and a formwork tightening shaft bolt (10). The form of the separate member is a plate nut (9 ) are screwed together, and a seat fitting joint (11) is inserted to hold the dimension between the formwork weir plates (1). At the tip of the round bar, a female screw is formed to be screwed into the male screw of the round separator (8), and the thickness dimension of the seat fitting cone (11) and the weir plate (1) is secured from the tip, and the rear part A male screw is formed on the whole, and a temporary tightening nut (10e) for the backrest of the formwork weir plate (1) is screwed from the end of the threaded part, and the stop (10a) is inserted in order and the tightening nut (10b) is tightened. They are screwed together, and plate-shaped protrusions (10c) for preventing the tightening nut (10b) from coming off and for locking the tool are formed at the ends.
The form of the butter material tightening fixture (13) consists of (as shown in FIGS. 1 and 2) a substantially U-shaped mounting member (13a), a hexagonal headed shaft bolt (13c) and a stop ( 13d) and a tightening nut (13e). A through hole (13b) is formed to match the connecting hole (4) provided in the edge rib (2), and a through hole is formed in the center of the back surface through which a shaft bolt (13c) with a hexagonal head penetrates. A hexagonal-headed shaft bolt (13c) is inserted into the through hole, and a stop (13d) is inserted from the end of the hexagonal-headed shaft bolt (13c) to tighten the tightening nut (13e). A plate-like projection (13f) is formed at the end to screw together and prevent the tightening nut (13e) from coming off.
In the form of the formwork fastener, the first formwork (conpanel form) on the opposite side is erected, the second formwork (conpanel form) to be connected is erected, and the formwork to be connected (Component panel foam) Between the edge ribs (2) fixed to the weir (1), the mounting member (13a) provided in the butter material tightening fixture (13) is fitted in a required place, and the edge rib ( 2) Align the connecting holes (4) between them with the through holes (13b) of the mounting members (13a), and insert the connecting holes (4) provided between the edge ribs (2) into the formwork connectors. A locking pin (6) is inserted into a through hole (5a) that appears when the provided guide pin (5) is inserted, and a tightening nut (5e) provided on the guide pin (5) tightening shaft (5c) By repeating this to a predetermined position, the formwork (conpanel form) is connected, and then the head of the mounting member (13a) is a hexagonal shaft bolt (13c ) are arranged above and below the butter material (14), and the butter material (14) is connected by rotating and tightening the tightening nut (13e) via the seat (13d). to the through hole (10d) through which the formwork tightening shaft bolt (10) provided at the connection part of the formwork (conpanel form) dam (1) is fixed to the back of the , The formwork (conpanel form) connected by screwing and connecting the male screw of the round separator (8) provided in the separate member to the female screw that appears by inserting the formwork tightening shaft bolt (10). By rotating and tightening the tightening nut (10b) between the edge ribs (2) through the abutment (10a) provided by the form tightening shaft bolt (10), the separate member is self-fixed and faces each other. A formwork (conpanel form) on one side is assembled.
Subsequently, the bar arrangement is sandwiched, and the core of the semi-circular through hole provided in the connecting part of the other side of the formwork (companel form) weir plate (1) facing the opposite side, and the other side male of the separate member that is self-supporting and fixed Aligning the shaft center of the formwork tightening shaft bolt (10) screwed to the screw, erect the first formwork (control panel form), and install the first formwork (control panel form) weir. Sandwiched between the semi-circular through-holes provided in the plate (1) and the semi-circular through-holes provided in the second formwork (conpane form), and then the connected formwork (conpane form) weir Between the edge ribs (2) fixed to the plate (1), the mounting member (13a) provided in the butter material tightening fixture (13) is fitted in the required place, and the through hole of the mounting member (13a) is fitted. (13b) is aligned with the connecting hole (4) between the edge ribs (2), and the guide pin (5) is inserted into the connecting hole (4) provided between the edge ribs (2) to emerge. By inserting the locking pin (6) into the hole (5a) and rotating and tightening the tightening nut (5e) provided on the tightening shaft (5c) of the guide pin (5), the mold (conpanel form) is connected, this work is repeated until the required position, and then the formwork clamping shaft bolt (10 ) and tighten by rotating the tightening nut (10b) through the stop (10a), which is repeated to the required position. The butter material (14) is arranged above and below (13c), and the butter material (14) is connected to the formwork (control panel) by rotating and tightening the tightening nut (13e) via the seat (13d). form), and opposite sides of the formwork (conpanel form) are assembled to support the load of poured concrete.
This formwork fastener is composed of a formwork connector, a formwork support fastener (12), and a butter material tightening fixture (13). By rotating and extracting the formwork tightening shaft bolt (10) provided in (12), the butter material (14) is separated from the frame in a state where it is fixed to the formwork (conpanel form) that has been connected with a plurality of pieces, A formwork fastener characterized by lifting and moving or relocating. The butter material tightening fixture (13) is composed of an approximately U-shaped mounting member (13a), a shaft bolt (13c), a stop (13d), a tightening nut (13e), and the like. is to form a flat bar having a required length into a roughly U-shape having a back surface and both side surfaces, and through-holes ( 13b), and a through hole through which a hexagonal-headed shaft bolt (13c) penetrates is formed in the center of the back surface, and a hexagonal-headed shaft bolt (13c) having a required length is inserted into the through-hole 13c) is inserted, a stop (13d) is inserted from the end of the shaft bolt (13c), a tightening nut (13e) is screwed, and a plate-like projection ( 13f) is formed at the end, and butter material (14) is arranged above and below the shaft bolt (13c), and the tightening nut (13e) is rotated through the stop (13d) to tighten and fix. to support the back of the connected formwork (conpanel form).
This butter material tightening fixture (13) supports the edge rib (2) on the back of the connected formwork (conpanel form) and a plurality of vertical ribs (2a) attached to the intermediate part, and the formwork that connects a plurality of pieces. The mold fastener according to claim 1, characterized in that the (conpanel foam) are aligned in a row. A formwork fastener (shown in FIG. 3) is composed of a formwork connector, a separate member and a formwork tightening shaft bolt (101).
The shape of the separate member is that plate nuts (9) are screwed to the threaded portions on both ends of the round separator (8). The shape of the formwork connector is formed by forming a taper with a small tip diameter on a round steel having a required length, and immediately after that, a through hole for inserting a locking pin (6) A hole (5a) is formed, the back of which is a narrow attachment portion main body (5ba), and the back of which is a tightening shaft portion (5c) having a smaller diameter than the clamping portion main body (5ba), and the tightening shaft portion is (5c) A male thread is formed on the entire length, a round washer (5d) is inserted into the male threaded portion, a tightening nut (5e) is screwed to the rear portion, and a protrusion prevents the tightening nut (5e) from coming off at the end. (5f).
The shape of the formwork tightening shaft bolt (101) is formed by forming a female thread at the tip of the round steel of a required length for screwing connection with the male thread of the round separator (8). , secure the part through which the seat fitting cone (11) and the weir plate (1) penetrate from the tip, form a male screw in the rear part, and then screw the temporary tightening nut (10e) from the end of the male screw. Then, a stop (10a) is inserted, a tightening nut (10b) is screwed, and a plate-like projection (10c) for preventing the tightening nut (10b) from coming off and for locking the tool is formed at the end. formed.
The shape of the formwork fastener is such that a guide pin provided in the formwork connector is inserted into the connecting hole (4) between the edge ribs (2) fixed to the formwork (conpanel form) dam (1) to be connected. Insert the locking pin (6) into the through hole (5a) that appears by inserting (5), and tighten it via the round washer (5d) that stays on the tightening shaft (5c) of the guide pin (5). The nut (5e) is rotated, and at the same time when the tightening nut (5e) stops rotating, the formwork (control panel form) weir (1) abuts and the formwork (control panel form) is connected. The formwork tightening shaft bolt (101) is inserted into a plurality of through holes (10d) provided in the connection part of the formwork (conpanel form), and the female of the formwork tightening shaft bolt (101) that appears The male thread of the round separator (8) provided on the separate member is screwed to the screw, and the butter material (14) is placed above and below the formwork clamping shaft bolt (101), and the stopper (10a) is interposed. By rotating and tightening the tightening nut (10b) to fix the butter material (14), the formwork (companel form) connected to one side facing each other is assembled, and the separate member is fixed by itself.
Subsequently, the bar arrangement is sandwiched, and the formwork tightening shaft bolt (101) is threadedly connected to the male screw of the round separator (8) provided in the separate member that is self-supporting, and the formwork on the opposite side (return side) is connected. (Component panel form) The first formwork (companel form) is formed by aligning the center of the semi-circular through hole provided in the connecting part of the weir (1) with the axis of the formwork tightening shaft bolt (101). form), and the semi-circular through hole provided in the first form (companel form) weir (1) and the second form (conpane form) weir (1) provided The formwork tightening shaft bolt (101) is sandwiched between the semi-circular through holes, and then the connecting hole (4) between the edge ribs (2) fixed to the connected weir plate (1). A lock pin (6) is inserted into a through hole (5a) that appears when the guide pin (5) is inserted, and a round washer (5d) is attached to the tightening shaft (5c) of the guide pin (5). The formwork (control panel form) is connected by rotating and tightening the tightening nut (5e). By rotating the tightening nut (10b) through (10a) and tightening and fixing the butter material (14), the formwork (conpanel form) connected on the other side is assembled, and the concrete load to be poured is assembled. To support.
This mold fastener has butter material (14) arranged above and below the mold tightening shaft bolt (101), and is tightened by rotating the tightening nut (10b) via a stop (10a) to tighten the butter material (14). Formwork fastener according to claim 1 or 2, characterized in that the butter material clamping fixture (13) is dispensed with by fixing 14). The formwork fastener (shown in FIG. 4) is composed of a separate member, an inter-shaft bolt (102) and a formwork clamping axial bolt (103).
In the form of the separate member, a plate nut (9) is screwed to both ends of a round separator (8), and a seat fitting joint (11) is inserted to form a formwork (conpanel form) between the weir plates (1). It is a member that retains the dimensions, and the form of the intershaft bolt (102) is formed by forming a female screw that is screwed into the male screw of the round separator (8) at the tip of a round steel of a required length. The thickness dimension of the seat fitting cone (11) and the weir plate (1) is secured, and the rear portion is formed with a male thread for screwing connection to the formwork tightening shaft bolt (103). A portion of the upper and lower ends of the end portion is scraped away to form a generally convex knob (102a) for holding a pinching tool.
The shape of the formwork clamping shaft bolt (103) is such that a female screw is formed at the tip axis of the bolt with a male screw of a required length to be screwed and connected to the male screw of the inter-shaft bolt (102). Then, a stop (1Oa) is inserted from the end on the opposite side, a tightening nut (10b) is screwed, and a plate-like projection (10c) for preventing the tightening nut (10b) from coming off and for locking the tool. and a temporary tightening nut (10e) for the backrest is screwed to the weir plate (1) which also serves to prevent the stop (10a) from coming off.
The configuration of the formwork fastener is such that the first formwork panel on one side facing each other is erected, the adjacent second formwork panel is erected, and the first and second weirs (1 ) are aligned with each other, pilot holes through which a plurality of wood screws or the like pass are formed at required positions, and are connected and fixed by connecting fixtures (7) such as wood screws, This connecting work is repeated until a desired position is reached. Next, inter-shaft bolts (102) are threadedly connected to both ends of the round separators (8) provided in the separate member that supports the weir plates (1). Insert the seat fitting (11) into (102), and insert the threaded part of the shaft bolt (102) between them into the plurality of through holes provided in the formwork panel dam (1). The formwork tightening shaft bolt (103) is threadedly connected, the butter material (14) is placed above and below the formwork tightening shaft bolt (103), and stays on the formwork tightening shaft bolt (103). By rotating and tightening the tightening nut (10b) through the stop (10a), the back surface of the connected formwork panel on one side is supported and fixed, so that the above-mentioned connected formwork panel weir (1) The separate member is self-fixed.
Subsequently, the bar arrangement is sandwiched, and the center of the hole through which the inter-shaft bolt (102) provided on the other side of the facing form panel weir (1) penetrates is aligned with the axial center of the inter-shaft bolt (102). , Push in the first formwork panel, push in the second formwork panel by the same procedure as above, and connect the first formwork panel and the second formwork panel dam plate (1) The vertical ribs (2a) fixed to the connecting part are aligned and connected and fixed with a connecting fixing tool (7) such as a wood screw, and this work is repeated until the required position, and the connected formwork panel dam (1) A form tightening shaft bolt (103) is threadedly connected to a male thread appearing from a through hole through which the inter-shaft bolt (102) penetrates, and a butter material (14) is mounted above and below the form tightening shaft bolt (103). ) is arranged, and by rotating and tightening the tightening nut (10b) through the abutment (10a) fixed to the formwork tightening shaft bolt (103), the back surface of the formwork panel connected on the other side is supported. to support the load of poured concrete.
The formwork fastener according to any one of claims 1 to 3, characterized in that a separate member can be attached to a position other than the connecting portion of the formwork dam (1) to be connected. The formwork connector is composed of a guide pin (5) and a locking pin (6). The guide pin (5) is formed by forming a taper with a smaller tip diameter on a round bar having a required length, Immediately after that, a through hole (5a) for inserting a locking pin (6) is formed, and behind that is a narrow attachment portion main body (5ba), and behind that is made smaller than the diameter of the narrow attachment portion main body (5ba). A tightening shaft (5c) having a diameter is formed, a male screw is formed on the entire tightening shaft (5c), a round washer (5d) is inserted into the male screw portion of the tightening shaft (5c), and A tightening nut (5e) is screwed into the nut, and the end of the male thread is formed with a protrusion (5f) for preventing the tightening nut (5e) from coming off.
The locking pin (6) is formed by bending the upper end of a round steel having a required length into a substantially P shape, maintaining the required length and forming a taper that becomes smaller toward the tip, or The upper end portion of a flat steel having a length is bent into an approximately L shape, and the tip portion thereof is tapered so that the tip becomes smaller.
In the form of the formwork connector, the guide pin (5) is inserted into the connection hole (4) between the edge ribs (2) fixed to the formwork (conpanel form) dams (1) to be connected. A lock pin (6) is inserted into a through hole (5a) that emerges from a hole (5a), and a tightening nut (5e) is rotated via a round washer (5d) that stays on the guide pin (5) tightening shaft (5c). As soon as the weir plates (1) come into contact with each other, the tightening nut (5e) stops rotating, and the forms (conpanel forms) are connected with each other while maintaining the space between the edge ribs (2).
In this formwork connector, the diameter of the clamping shaft (5c) is smaller than the diameter of the main body (5ba) of the clamping portion (5ba) of the guide pin (5), so that the round washer (5d) The formwork fastener according to any one of claims 1 to 4, characterized in that the time and labor required to install the round washer (5d) can be saved because the fastener remains in place and does not come off. The seat fitting cone (11) is made of concrete or mortar and has an approximately barrel-shaped appearance. A through hole (11a) is formed in the axial center through which the formwork tightening shaft bolt (10) penetrates.
The form is a female screw that emerges by inserting the formwork tightening shaft bolt (10) into a through hole (10d) through which the formwork tightening shaft bolt (10) penetrates provided in the opposing weir (1). Insert the seat fitting connector (11) into the part, connect the female screw to both ends of the round separator (8) screwed with the plate nut (9), and connect the weir plate (1 ).
This seat fitting joint (11) is sandwiched between a plate nut (9) and a formwork (conpanel foam) dam (1) to prevent slag coming out of the concrete from entering due to being in close contact with the dam (1). In addition, it can be installed by simply inserting it into the formwork tightening shaft bolt (10), and since it is embedded in concrete, it does not need to be removed, improving efficiency and shortening the construction period. The formwork fastener according to 4. The form of the checker (10a) or the checker (13d) is composed of a wooden main body and a cover that prevents displacement by bending a flat steel into a substantially U-shape,
The wooden main body is a member processed from scraps such as crosspieces having a required length and required strength. It is a member extended slightly longer than the part, and the cover that prevents the displacement is fixed to the wooden body part with a wood screw or the like, and a through hole (10d) through which the formwork tightening shaft bolt (10) penetrates is formed in the center. formed.
The form fastener according to any one of claims 1 to 4, characterized in that the temporary block (10a) or the temporary block (13d) is made of cut pieces of crosspieces, etc., so that the crosspieces, etc. are effectively used.

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