JP2010189867A - Concrete form clamp fitting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a form of clamping a concrete form through form sheathing boards and batter brackets by positioning cone cups at both ends of a protective pipe for protecting a separator, and inserting the separator through the cone cups in a concrete form clamp fitting. <P>SOLUTION: The protective pipe 9 and the cone cups are insert-fitted to a shaft body 28 to which the separator 1 is stuck, and the form sheathing boards 3 are insert-fitted to both end sides of the shaft body 28 to which the separator 1 is stuck, to clamp the concrete form through the batten brackets 5, 12. In this clamping method, the shaft body 28 to which the separator 1 is stuck is pulled out in the remaining state of the concrete form and cone cups 8, 10 after concrete is solidified. Difficulty of a screw part of the separator 1 getting entangled with a form weir 3 is thereby eliminated, which results in considerable power saving in form assembling-dismantling work. Furthermore, a construction method of sliding (repositioning) a plurality of concrete forms in a connected state to a floor directly above is facilitated to obtain considerable construction period shorting and cost reducing effects. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a concrete form clamp fastener used for assembling a concrete form.

When placing concrete at the time of construction of a wall that is a concrete structure, after reinforcing bar reinforcement as a skeleton of the structure is completed, concrete formwork (hereinafter referred to simply as formwork) is placed on both sides of the reinforcement. And a separator member arranged so as to maintain a required interval between the opposing concrete molds, and supporting the gap between the opposing concrete molds by the separator member, Place and fix the butter material that supports the back of the concrete formwork. The concrete structure is constructed by supplying (pouring) concrete between the concrete molds thus constructed.

The separator members used in the construction of the concrete form mentioned above are generally in three types: separators with round steel bars, thin plate separators with shafts, and flat steel plates with shafts. However, these separator members are selectively used depending on the form of the concrete formwork or the design of the enforcer, and as a concrete formwork that has been frequently used in the past, it is easy to manufacture the concrete formwork. Because of the simplicity of work such as nailing to connect the concrete molds together, and the ease of handling, handling, etc. during construction due to the fact that the concrete molds are woody and lightweight Concrete forms made of wood plywood are often used.

In this way, when the concrete formwork is a wood type, for example, as shown in FIG. 2 of Japanese Patent Laid-Open No. 2005-61126 or FIG. 4 of Japanese Patent Laid-Open No. 2005-16088, it is called a screw rod or simply a separator. A separator member with a round steel shaft is used, and a separate hole is drilled by a drill at the required pitch on the slats of the concrete form that are arranged opposite to each other with the reinforcing bar arrangement, The cone screws (sometimes referred to as P-con), which are screwed and fixed to the separator formed by engraving the screws at both ends, are inserted so that the shaft screws protrude from the slats, and the adjacent concrete formwork is nail or connecting bracket After connecting with a foam tie, a foam tie (registered trademark), which is a butter material fastening bracket, is screwed and fixed to the screw. Batter material that supports the concrete load acting on the concrete formwork is placed and fixed up and down, and the shaft part that is the main body of the foam tie (registered trademark) is tightened with a wedge-shaped taper pin to construct a concrete formwork Has been done.

  In addition, in an external concrete form that slides (changes) to the upper floor with a plurality of concrete formwork connected in series, a seat plate with a nut secured to the vertical flap material of the external concrete formwork is placed vertically. The separator is screwed and fixed to the nut, a protective tube (sleeve tube) is inserted into the separator, an internal concrete formwork is built, and a separator separator provided on the concrete formwork plate is installed. It is possible to remove the separator in a state where the concrete formwork is left by a method in which the concrete formwork is inserted and fitted in accordance with the hole, and the butter material is fastened and fixed using the butterfly material clamp. In this method, after removing the concrete formwork, the protective tube (sleeve tube) is pulled out for waterproofing the concrete, and this work requires a lot of labor, and thus the labor cost increases.

As for the above-mentioned butter material, the stress balance is maintained and stabilized by arranging round steel pipes (hereinafter sometimes simply referred to as single pipes) or square steel pipes having an outer diameter of 48.6 mm or above and below the foam ties. A supporting method is generally adopted.

As a form of a new concrete mold clamping bracket, a butter material clamping bracket on which a sliding saddle member is mounted is provided with a connecting portion that connects to a separator member, and a clamping portion that presses the saddle member at the rear is provided. A concrete mold that uses a strong structure to place flat steel butterfly material on the eaves member and press the butter against the concrete formwork, making the concrete form fixing and tightening work safe and simple. A frame fastening bracket has been proposed (see, for example, Japanese Patent Application Laid-Open No. 2008-115591).
JP 2008-115591 A JP 2006-207367 A JP 2005-16088 A JP 2005-61126 A JP 2004-27592 A JP 1998-266560 A Product catalog NO3 concrete formwork-Okabe Co., Ltd. General catalog issued by Okabe Co., Ltd. Issued by Marui Construction Parts Catalog No.9 / Marui Sangyo Co., Ltd.

In view of the above-described points, in the work after pouring concrete between opposing concrete molds and solidifying the concrete, the shaft of a cone (sometimes referred to as P-con) that is screwed and fixed to both ends of the separator in the conventional method. Screw and fix the main body of the butter material fastening screw to the screw through the concrete formwork, arrange the upper and lower butter materials, tighten and fix them with bolts or wedges, and tighten the butter and butter materials after solidifying the concrete By removing the metal fittings and leaving the cone connected to both ends of the separator, the concrete mold is disassembled, and the cone screw is entangled in the sepa hole of the concrete formwork board (such as the control panel). This makes it difficult to dismantle the concrete formwork. In view of this, the concrete mold and the external appearance are in the shape of a truncated cone, and the inside is in a form in which the separator 1 is pulled out with the cone cups 8 and 10 penetrating into a substantially U shape leaving the end portion as shown in FIG. To do.

In addition, since the concrete fastening metal fittings are provided with the butterfly receiving metal fittings 5 and 12, the concrete formwork can be assembled or disassembled safely and easily by holding the heavy and long horizontal material 15.

In order to achieve the above object, the present invention provides a shaft 28 formed by inserting and fixing the separator 1 in the insertion tube 2 into a shaft 28 that is fitted to the separator 1 requiring a predetermined length. The cone cup 8 is inserted into the portion of the separator 1 that extends from the insertion tube 2 that is fixed to the shaft body 28, and the separator 1 that is fixed to the shaft body 28 via the concrete formwork plate 3 and the butter metal fitting 5. The shaft body 28 is fixed to the concrete formwork plate 3 by screwing and fixing the butter material fastening metal fitting body 7 to the connection screw 6, and the protective tube 9 for protecting (curing) the shaft body 28. , And a cone cup 10 is inserted in the rear part thereof, and the butter material fastening metal fitting body 7 is screwed and fixed to the connecting screw 13 of the separator 1 through the concrete formwork plate 3 and the butter metal fitting 12. The attachment part of the butterfly bracket 12 is shown in FIG. As shown in FIG. 2, the hook receiving bracket 12 is fitted to the hooking portion 25 which is formed in the long hole 26 and fits to the hooking portion 25 from which a part of both sides is removed from the circle of the insertion tube 2 fixed to the separator 1. , When the connection screw 6 of the separator 1 (batter receiving metal fitting 5 side) and the butter material fastening metal fitting body 7 are screwed (tightened) or relaxed (screw removed), the separator 1 In which the concrete formwork and the cone cups 8 and 10 are left in place because the screwing and relaxation (screw removal) of the separator 1 and the butterfly material body 7 are facilitated. Thus, the shaft body 28 to which the separator 1 is fixed can be removed.

As described above, the concrete form clamp fastener of the present invention pulls out the shaft body 28 to which the separator 1 and the insertion tube 2 are fixed in a state where the concrete formwork and the cone cups 8 and 10 are left after the concrete is solidified. This eliminates the protruding portion of the separator 1 entangled with the concrete formwork sill plate 3 and improves the efficiency of the concrete formwork disassembly work because the concrete formwork sill plate 3 is peeled off. With good performance, damage is reduced and the number of diversions is increased. In addition, by having the butterfly brackets 5 and 12, a long horizontal butterfly material 15 can be easily and easily temporarily placed, and the butterfly material can be attached and removed safely. Significant economic effects can be obtained from becoming efficient.

Further, after the concrete is solidified, the separator 1 entangled with the concrete formwork plate 3 is removed by removing the shaft 28 to which the separator 1 and the insertion tube 2 are fixed in a state where the concrete formwork and the cone cups 8 and 10 are left. As a result, it is possible to realize a large-scale formwork slide method on the outside which makes it easy to slide (replace) to a directly upper floor in a state where a plurality of concrete formwork is continuously provided.

Furthermore, since the concrete formwork can be easily dismantled, damage to the concrete formwork will be reduced, the number of diversions will be increased, and the amount of rainforest material used for the concrete formwork board 3 will be reduced. Helps to protect problems or forests. In addition, the cost can be greatly reduced by expanding the diversion rate of the concrete formwork and saving labor.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  In this embodiment, the concrete formwork will be described on the premise that the vertical butterfly 14 is fixed to a siding board 3 (such as a control panel) and a horizontal pipe 15 is a single pipe.

  FIG. 1 is a cross-sectional front view showing a configuration of a concrete form clamp fastening metal. A shaft body 28 for fixing the separator 1 and a metal insertion tube 2 supports the width of the concrete formwork. 28, the cone cup 8 is inserted into the connecting screw 6 portion of the separator 1 extending from the shaft body 28 into the separator hole 4 through which the separator 1 passes through the opposing one (right) concrete formwork plate 3, By fixing the butter material fastening metal fitting body 7 to the connecting screw 6 via the butter metal fitting 5, the shaft body 28 is fixed to the formwork 3, and the shaft body 28 is protected. A tube 9 is inserted, a cone cup 10 is inserted behind it, and a concrete mold so that the shaft body 28 fits into a separate hole 11 provided on the other (left) concrete formwork plate 3. The frame is built in and the separator 12 1 is fixed to the connecting screw 13 by screwing, and the vertical butterfly material 14 and the horizontal butterfly material 15 are arranged on both opposing concrete formwork slats 3 via the presser washer 16. By tightening the nut 17, the concrete formwork of the wall body is constructed.

  FIG. 2 is a partial cross-sectional view showing the main part of one side (right side) with respect to an opposing concrete formwork, and a shaft body 28 in which an insertion tube 2 is fixed to a separator 1 by a fixing means such as press contact is formed. The connecting screw 6 of the separator 1 extends to the right of the end of the shaft body 28, and the connecting screw 6 is fastened to the butter via a cone cup 8, a concrete formwork plate 3, and a butter receiving bracket 5. The metal fitting body 7 is screwed and fixed to the connection screw 6. In short, the cone cup 8, the concrete formwork plate 3, and the butter metal fitting 5 are sandwiched between the small opening which is a contact portion of the shaft body 28 and the butter material fastening metal fitting body 7, and the butter material is fastened to the connecting screw 6 of the separator 1. The shaft body 28 is fixed to the concrete formwork plate 3 by screwing the attachment main body 7 with screws.

The butter metal fitting 5 shown in FIG. 2 is formed by bending a flat steel requiring a predetermined length so that the side surface is substantially L-shaped, forming a vertical portion 18 and a horizontal portion 19 as shown in FIG. Above the vertical portion 18, a circular hooking hole 20 that fits into the connection screw 6 of the separator 1 is formed at the position shown in FIG. 3, and the horizontal portion 19 is a part for temporarily placing the horizontal flap material 15, In order to prevent the temporarily placed horizontal butter material 15 from slipping down, a drop-proof portion 21 having a tip bent at about 45 degrees is formed.

  The cone cup 8 shown in FIG. 2 has a frustoconical appearance, and the inside is a hexagonal shape in which a part of the end opening is left behind as shown in FIG. 5 and the separator 1 is inserted into the end opening. Of the circular washer 23, and the insertion tube 2 comes into contact with the end face of the cone cup 8, so that the round washer 23 protecting the end face of the cone cup 8 is fixed by bonding or the like. The center portion is provided with a separator hole 24 through which the separator 1 is inserted.

  FIG. 6 is a partial cross-sectional view showing the main part of one side (left side) with respect to the opposing concrete formwork, and a latching part 25 in which the butter metal fitting 12 is fitted to one end part of the insertion tube 2. As shown in FIG. 8, a part of both sides of the circle of the insertion tube 2 is deleted, and the separator 1 is fixed to the insertion tube 2 in which the cross-sectional shape of the hook portion 25 having a substantially long hole shape is formed. The protective tube 9 is inserted into the shaft body 28, the cone cup 10 is inserted behind the shaft body 28, and the shaft body 28 extending from the protective tube 9 through the concrete formwork plate 3 penetrates the separator. The concrete formwork is arranged while being inserted into the hole 11, the butterfly catch 12 is fitted into the latching portion 25 formed in the insertion tube 2, and the butterfly material clamp 7 is connected to the connection screw 13 of the separator 1. The vertical butterfly material 14 and the horizontal butterfly material are fixed to both of the concrete formwork plates 3 that are fixed with screws. 5 is arranged, the concrete formwork wall by tightening the nut 17 via the 押座 gold 16 is constructed.

  The protective tube 9 described above is a member for protecting the shaft body 28, and the small end of one side (right side) of the protective tube 9 is in contact with the round washer 23 fixed to the end portion of the cone cup 8, The other (left side) is a buried member that abuts against the end of the cone cup 10 and prevents the inflow of concrete. The material of the protective tube 9 and the cone cups 8 and 10 is not particularly limited, and a product such as a synthetic resin is preferable. As the protective tube 9, it is desirable to use an inexpensive CD tube.

  The butter catch 12 shown in FIGS. 6 and 7 is the same as the butter catch 5 except for a part thereof, and the different part is a portion for latching the butter catch 12, and the portion where the butter catch 12 is latched. As shown in FIG. 7, a long hole 26 that matches the latching portion 25 of the insertion tube 2 fixed to the shaft body 28 is formed, and the separator 26 is fitted and fixed to the latching portion 25 of the insertion tube 2. The shaft body 28 to which 1 is fixed is prevented from idling, and the shaft body 28 can be removed while the concrete formwork 3 and the cone cups 8 and 10 are left. Specifically, the shaft body 28 is removed by removing the butter material fastening metal fitting body 7 by rotating it counterclockwise, and the difficulty associated with the threaded portion of the separator 1 or the concrete formwork plate 3 that becomes an obstacle is eliminated.

  The cone cup 10 shown in FIG. 9 is the same as the cone cup 8 except for a part thereof, and the round washer 23 that is fixed to the end portion is unnecessary for the different portions.

  Next, regarding the concrete formwork disassembling procedure, after the concrete is solidified, the nut 17 of the butter material fastening metal fitting body 7 shown in FIGS. 2 and 3 is released, the upper and lower horizontal butter materials 15 are removed, and the separator 1 is connected. 2 is removed by left-hand rotation, and the separator 1 and the butterfly material body 7 are rotated together. The butter receiving bracket 5 is removed, the butter receiving bracket 12 and the butter material fastening metal fitting body 7 are removed, the shaft body 28 to which the separator 1 is fixed is removed, and both concrete types facing each other are removed. Disassemble to peel off the frame, insert a hexagonal bar tool (not shown) into the through-holes 22 and 27 of the cone cups 8 and 10, rotate and peel off, and waterproof mortar in the holes of the cone cups 8 and 10. The To write the water shut-off.

  As described above in detail, the conventional concrete form clamp fastener is not capable of removing the separator 1 with the concrete formwork and the corn cup left, so that the threaded portion of the separator 1 when the concrete formwork is disassembled. Or, the cone screw (also called P-con) protrudes from the concrete formwork siding plate 3 and peels off the concrete formwork in an entangled state, causing severe damage to the concrete formwork. Compared with the case where the cost increases due to a loss of a burden or the like, the concrete fastening bracket according to the present invention is a method of removing the separator 1 with the concrete formwork and the cone cups 8 and 10 left, and concrete. This eliminates the difficulty in which the screw portion of the separator 1 that becomes an obstacle when the mold is disassembled is entangled with the mold platen 3.

  In addition, since the concrete fastening metal fittings are provided with the flap metal fittings 5 and 12, it is safe and relatively easy to assemble or dismantle the concrete mold with the heavy and long horizontal flap material 15, and an advantageous construction can be performed.

  Furthermore, since the cone cups 8 and 10 do not require a screw portion and are inserted, the screwing operation is omitted. Further, the cone cups 8 and 10 are advantageous in terms of unit price because they do not require a screw connection portion.

Sectional front view which shows the structure of the concrete fastening metal fitting concerning this invention. Detailed view showing the main part of one side (right side) of the concrete clamp according to the present invention Sectional view taken along line EE in FIG. AA line cross-sectional view of the cone cup in FIG. BB sectional view of the cone cup in FIG. Detailed view showing the main part of one side (left side) of the concrete clamp according to the present invention Sectional view taken along line FF in FIG. Partial front view of the insertion tube showing the latching portion to which the butterfly fitting is fitted CC sectional view of the cone cup in FIG. Cross-sectional view of the corn cup taken along line DD in FIG.

DESCRIPTION OF SYMBOLS 1 Separator 2 Insertion tube 3 Formwork plate 4 Sepa hole 5 Flutter receiving metal fitting 6 Connection screw 7 Batter material fastening metal fitting body 8 Cone cup 9 Protection tube 10 Cone cup 11 Sepa hole 12 Flutter metal fitting 13 Connection screw 14 Vertical flap Material 15 Lateral material 16 Press washer 17 Nut 18 Vertical part 19 Horizontal part 20 Latching hole 21 Falling part 22 Through hole 23 Round washer 24 Separator hole 25 Latching part 26 Long hole 27 Through hole 28 Shaft body

The present invention relates to a concrete mold fastening metal fitting and a butter metal fitting used for assembling a concrete mold.

When placing concrete at the time of construction of a wall that is a concrete structure, after reinforcing bar reinforcement as a skeleton of the structure is completed, concrete formwork (hereinafter referred to simply as formwork) is placed on both sides of the reinforcement. And a separator member arranged so as to maintain a required interval between the opposing concrete molds, and supporting the gap between the opposing concrete molds by the separator member, Place and fix the butter material that supports the back of the concrete formwork. The concrete structure is constructed by supplying (pouring) concrete between the concrete molds thus constructed.

The separator members used in the construction of the concrete form mentioned above are generally in three types: separators with round steel bars, thin plate separators with shafts, and flat steel plates with shafts. However, these separator members are selectively used depending on the form of the concrete formwork or the design of the enforcer, and as a concrete formwork that has been frequently used in the past, it is easy to manufacture the concrete formwork. Because of the simplicity of work such as nailing to connect the concrete molds together, and the ease of handling, handling, etc. during construction due to the fact that the concrete molds are woody and lightweight Concrete forms made of wood plywood are often used.

In this way, when the concrete formwork is a wood type, for example, as shown in FIG. 2 of Japanese Patent Laid-Open No. 2005-61126 or FIG. 4 of Japanese Patent Laid-Open No. 2005-16088, it is called a screw rod or simply a separator. A separator member with a round steel shaft is used, and a separate hole is drilled by a drill at the required pitch on the slats of the concrete form that are arranged opposite to each other with the reinforcing bar arrangement, The cone screws (sometimes referred to as P-con), which are screwed and fixed to the separator formed by engraving the screws at both ends, are inserted so that the shaft screws protrude from the slats, and the adjacent concrete formwork is nail or connecting bracket After connecting with a foam tie, a foam tie (registered trademark), which is a butter material fastening bracket, is screwed and fixed to the screw. Batter material that supports the concrete load acting on the concrete formwork is placed and fixed up and down, and the shaft part that is the main body of the foam tie (registered trademark) is tightened with a wedge-shaped taper pin to construct a concrete formwork Has been done.

  In addition, in an external concrete form that slides (changes) to the upper floor with a plurality of concrete formwork connected in series, a seat plate with a nut secured to the vertical flap material of the external concrete formwork is placed vertically. The separator is screwed and fixed to the nut, a protective tube (sleeve tube) is inserted into the separator, an internal concrete formwork is built, and a separator separator provided on the concrete formwork plate is installed. It is possible to remove the separator in a state where the concrete formwork is left by a method in which the concrete formwork is inserted and fitted in accordance with the hole, and the butter material is fastened and fixed using the butterfly material clamp. In this method, after removing the concrete formwork, the protective tube (sleeve tube) is pulled out for waterproofing the concrete, and this work requires a lot of labor, and thus the labor cost increases.

As for the above-mentioned butter material, the stress balance is maintained and stabilized by arranging round steel pipes (hereinafter sometimes simply referred to as single pipes) or square steel pipes having an outer diameter of 48.6 mm or above and below the foam ties. A supporting method is generally adopted.

As a form of a new concrete mold clamping bracket, a butter material clamping bracket on which a sliding saddle member is mounted is provided with a connecting portion that connects to a separator member, and a clamping portion that presses the saddle member at the rear is provided. A concrete mold that uses a strong structure to place flat steel butterfly material on the eaves member and press the butter against the concrete formwork, making the concrete form fixing and tightening work safe and simple. A frame fastening bracket has been proposed (see, for example, Japanese Patent Application Laid-Open No. 2008-115591).
JP 2008-115591 A JP 2006-207367 A JP 2005-16088 A JP 2005-61126 A JP 2004-27592 A JP 1998-266560 A Product catalog NO3 concrete formwork-Okabe Co., Ltd. General catalog issued by Okabe Co., Ltd. Issued by Marui Construction Parts Catalog No.9 / Marui Sangyo Co., Ltd.

In view of the above-described points, in the work after pouring concrete between opposing concrete molds and solidifying the concrete, the shaft of a cone (sometimes referred to as P-con) that is screwed and fixed to both ends of the separator in the conventional method. Screw and fix the main body of the butter material fastening screw to the screw through the concrete formwork, arrange the upper and lower butter materials, tighten and fix them with bolts or wedges, and tighten the butter and butter materials after solidifying the concrete By removing the metal fittings and leaving the cone connected to both ends of the separator, the concrete mold is disassembled, and the cone screw is entangled in the sepa hole of the concrete formwork board (such as the control panel). This makes it difficult to dismantle the concrete formwork. In view of this, the concrete mold and the external appearance are in the shape of a truncated cone, and the inside is in a form in which the separator 1 is pulled out with the cone cups 8 and 10 penetrating into a substantially U shape leaving the end portion as shown in FIG. To do.

In addition, since the concrete fastening metal fittings are provided with the flap receiving metal fittings 5 and 12, the assembly of the concrete formwork or the dismantling work can be performed safely and easily by holding the heavy and long horizontal flap material 15.

In order to achieve the above object, the present invention provides a shaft 28 formed by inserting and fixing the separator 1 in the insertion tube 2 into a shaft 28 that is fitted to the separator 1 requiring a predetermined length. The cone cup 8 is inserted into the portion of the separator 1 that extends from the insertion tube 2 that is fixed to the shaft body 28, and the separator 1 that is fixed to the shaft body 28 via the concrete formwork plate 3 and the butter metal fitting 5. Then, the shaft body 28 is fixed to the concrete formwork plate 3 by screwing and fixing the butter material fastening metal fitting body 7 to the connection screw 6 . Then, a protective tube 9 for protecting (curing) the shaft body 28 is inserted, and a cone cup 10 is inserted at the rear portion thereof, and the butter material is tightened via the concrete formwork plate 3 and the butter metal fitting 12. The metal fitting body 7 is screwed and fixed to the connection screw 13 of the separator 1 . Fitting engagement with the flap receiving mounting portions of the brackets 12 is formed into a long hole 26 as shown in FIG. 7, the latching portion 25 to remove some both sides of the circle of insertion tube 2 to be fixed to the separator 1 To do . By fitting the butter receiving bracket 12 to the latching portion 25, the connection screw 6 of the separator 1 (the butter receiving bracket 5 side) and the butter material tightening fitting main body 7 are screwed and tightened (screw tightening). Alternatively, the slipping of the separator 1 is prevented during relaxation (unscrewing), and the screwing and relaxation (unscrewing) of the separator 1 and the butterfly material clamp body 7 are facilitated. In addition, the shaft body 28 to which the separator 1 is fixed can be removed with the cone cups 8 and 10 left.

As described above, the concrete form clamp fastener of the present invention pulls out the shaft body 28 to which the separator 1 and the insertion tube 2 are fixed in a state where the concrete formwork and the cone cups 8 and 10 are left after the concrete is solidified. This eliminates the protruding portion of the separator 1 entangled with the concrete formwork sill plate 3 and improves the efficiency of the concrete formwork disassembly work because the concrete formwork sill plate 3 is peeled off. With good performance, damage is reduced and the number of diversions is increased. In addition, by having the butterfly brackets 5 and 12, a long horizontal butterfly material 15 can be easily and easily temporarily placed, and the butterfly material can be attached and removed safely. Significant economic effects can be obtained from becoming efficient.

Further, after the concrete is solidified, the separator 1 entangled with the concrete formwork plate 3 is removed by removing the shaft 28 to which the separator 1 and the insertion tube 2 are fixed in a state where the concrete formwork and the cone cups 8 and 10 are left. As a result, it is possible to realize a large-scale formwork slide method on the outside which makes it easy to slide (replace) to a directly upper floor in a state where a plurality of concrete formwork is continuously provided.

Furthermore, since the concrete formwork can be easily dismantled, damage to the concrete formwork will be reduced, the number of diversions will be increased, and the amount of rainforest material used for the concrete formwork board 3 will be reduced. Helps to protect problems or forests. In addition, the cost can be greatly reduced by expanding the diversion rate of the concrete formwork and saving labor.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  In this embodiment, the concrete formwork will be described on the premise that the vertical butterfly 14 is fixed to a siding board 3 (such as a control panel) and a horizontal pipe 15 is a single pipe.

  FIG. 1 is a cross-sectional front view showing a configuration of a concrete form clamp fastening metal. A shaft body 28 for fixing the separator 1 and a metal insertion tube 2 supports the width of the concrete formwork. 28, the cone cup 8 is inserted into the connecting screw 6 portion of the separator 1 extending from the shaft body 28 into the separator hole 4 through which the separator 1 passes through the opposing one (right) concrete formwork plate 3, By fixing the butter material fastening metal fitting body 7 to the connecting screw 6 via the butter metal fitting 5, the shaft body 28 is fixed to the formwork 3, and the shaft body 28 is protected. A tube 9 is inserted, a cone cup 10 is inserted behind it, and a concrete mold so that the shaft body 28 fits into a separate hole 11 provided in the other (left) concrete formwork plate 3. The frame is built in and the separator 12 1 is fixed to the connecting screw 13 by screwing, and the vertical butterfly material 14 and the horizontal butterfly material 15 are arranged on both opposing concrete formwork slats 3 via the presser washer 16. By tightening the nut 17, the concrete formwork of the wall body is constructed.

  FIG. 2 is a partial cross-sectional view showing the main part of one side (right side) with respect to an opposing concrete formwork, and a shaft body 28 in which an insertion tube 2 is fixed to a separator 1 by a fixing means such as press contact is formed. The connecting screw 6 of the separator 1 extends to the right of the end of the shaft body 28, and the connecting screw 6 is fastened to the butter via a cone cup 8, a concrete formwork plate 3, and a butter receiving bracket 5. The metal fitting body 7 is screwed and fixed to the connection screw 6. In short, the cone cup 8, the concrete formwork plate 3, and the butter metal fitting 5 are sandwiched between the small opening which is a contact portion of the shaft body 28 and the butter material fastening metal fitting body 7, and the butter material is fastened to the connecting screw 6 of the separator 1. The shaft body 28 is fixed to the concrete formwork plate 3 by screwing the attachment main body 7 with screws.

The butter metal fitting 5 shown in FIG. 2 is formed by bending a flat steel requiring a predetermined length so that the side surface is substantially L-shaped, forming a vertical portion 18 and a horizontal portion 19 as shown in FIG. Above the vertical portion 18, a circular hooking hole 20 that fits into the connection screw 6 of the separator 1 is formed at the position shown in FIG. 3, and the horizontal portion 19 is a part for temporarily placing the horizontal flap material 15, In order to prevent the temporarily placed horizontal butter material 15 from slipping down, a drop-proof portion 21 having a tip bent at about 45 degrees is formed.

The cone cup 8 shown in FIG. 2 has a frustoconical appearance, and the inside is a hexagonal shape in which a part of the end opening is left behind as shown in FIG. 5 and the separator 1 is inserted into the end opening. Since the insertion tube 2 comes into contact with the end face of the cone cup 8, the round washer 23 that protects the end face of the cone cup 8 is fixed by adhesion or the like . A circular hole of the circular washer 23 is provided with a separator hole 24 through which the separator 1 is inserted.

  FIG. 6 is a partial cross-sectional view showing the main part of one side (left side) with respect to the opposing concrete formwork, and a latching part 25 in which the butter metal fitting 12 is fitted to one end part of the insertion tube 2. As shown in FIG. 8, a part of both sides of the circle of the insertion tube 2 is deleted, and the separator 1 is fixed to the insertion tube 2 in which the cross-sectional shape of the hook portion 25 having a substantially long hole shape is formed. The protective tube 9 is inserted into the shaft body 28, the cone cup 10 is inserted behind the shaft body 28, and the shaft body 28 extending from the protective tube 9 through the concrete formwork plate 3 penetrates the separator. The concrete formwork is arranged while being inserted into the hole 11, the butterfly catch 12 is fitted into the latching portion 25 formed in the insertion tube 2, and the butterfly material clamp 7 is connected to the connection screw 13 of the separator 1. The vertical butterfly material 14 and the horizontal butterfly material are fixed to both of the concrete formwork plates 3 that are fixed with screws. 5 is arranged, the concrete formwork wall by tightening the nut 17 via the 押座 gold 16 is constructed.

  The protective tube 9 described above is a member for protecting the shaft body 28, and the small end of one side (right side) of the protective tube 9 is in contact with the round washer 23 fixed to the end portion of the cone cup 8, The other (left side) is a buried member that abuts against the end of the cone cup 10 and prevents the inflow of concrete. The material of the protective tube 9 and the cone cups 8 and 10 is not particularly limited, and a product such as a synthetic resin is preferable. As the protective tube 9, it is desirable to use an inexpensive CD tube.

The butter catch 12 shown in FIGS. 6 and 7 is the same as the butter catch 5 except for a part, and the different part is a portion where the butter catch 12 is hooked. The portion where the butter catch 12 is hooked. As shown in FIG. 7, by forming a long hole 26 that matches the latching portion 25 of the insertion tube 2 that is fixed to the shaft body 28, and fitting and fixing to the latching portion 25 of the insertion tube 2, The shaft body 28 to which the separator 1 is fixed is prevented from idling, and the shaft body 28 can be removed with the concrete formwork plate 3 and the cone cups 8 and 10 left. Specifically, the shaft body 28 is removed by removing the butter material fastening metal fitting body 7 by rotating it counterclockwise, and the difficulty in which the screw portion of the separator 1 which becomes an obstacle is entangled with the concrete formwork plate 3 is eliminated.

  The cone cup 10 shown in FIG. 9 is the same as the cone cup 8 except for a part thereof, and the round washer 23 that is fixed to the end portion is unnecessary for the different portions.

  Next, regarding the concrete formwork disassembling procedure, after the concrete is solidified, the nut 17 of the butter material fastening metal fitting body 7 shown in FIGS. 2 and 3 is released, the upper and lower horizontal butter materials 15 are removed, and the separator 1 is connected. 2 is removed by left-hand rotation, and the separator 1 and the butterfly material body 7 are rotated together. The butter receiving bracket 5 is removed, the butter receiving bracket 12 and the butter material fastening metal fitting body 7 are removed, the shaft body 28 to which the separator 1 is fixed is removed, and both concrete types facing each other are removed. Disassemble to peel off the frame, insert a hexagonal bar tool (not shown) into the through-holes 22 and 27 of the cone cups 8 and 10, rotate and peel off, and waterproof mortar in the holes of the cone cups 8 and 10. The To write the water shut-off.

  As described above in detail, the conventional concrete form clamp fastener is not capable of removing the separator 1 with the concrete formwork and the corn cup left, so that the threaded portion of the separator 1 when the concrete formwork is disassembled. Or, the cone screw (also called P-con) protrudes from the concrete formwork siding plate 3 and peels off the concrete formwork in an entangled state, causing severe damage to the concrete formwork. Compared with the case where the cost increases due to a loss of a burden or the like, the concrete fastening bracket according to the present invention is a method of removing the separator 1 with the concrete formwork and the cone cups 8 and 10 left, and concrete. This eliminates the difficulty in which the screw portion of the separator 1 that becomes an obstacle when the mold is disassembled is entangled with the mold platen 3.

  In addition, since the concrete fastening metal fittings are provided with the flap metal fittings 5 and 12, it is safe and relatively easy to assemble or dismantle the concrete mold with the heavy and long horizontal flap material 15, and an advantageous construction can be performed.

  Furthermore, since the cone cups 8 and 10 do not require a screw portion and are inserted, the screwing operation is omitted. Further, the cone cups 8 and 10 are advantageous in terms of unit price because they do not require a screw connection portion.

Sectional front view which shows the structure of the concrete fastening metal fitting concerning this invention. Detailed view showing the main part of one side (right side) of the concrete clamp according to the present invention Sectional view taken along line EE in FIG. AA line cross-sectional view of the cone cup in FIG. BB sectional view of the cone cup in FIG. Detailed view showing the main part of one side (left side) of the concrete clamp according to the present invention Sectional view taken along line FF in FIG. Partial front view of the insertion tube showing the latching portion to which the butterfly fitting is fitted CC sectional view of the cone cup in FIG. Cross-sectional view of the corn cup taken along line DD in FIG.

DESCRIPTION OF SYMBOLS 1 Separator 2 Insertion tube 3 Formwork plate 4 Sepa hole 5 Flutter receiving metal fitting 6 Connection screw 7 Batter material fastening metal fitting body 8 Cone cup 9 Protection tube 10 Cone cup 11 Sepa hole 12 Flutter metal fitting 13 Connection screw 14 Vertical flap Material 15 Lateral material 16 Press washer 17 Nut 18 Vertical part 19 Horizontal part 20 Latching hole 21 Falling part 22 Through hole 23 Round washer 24 Separator hole 25 Latching part 26 Long hole 27 Through hole 28 Shaft body

The present invention relates again and again gold with concrete formwork clamping use in assembling the concrete form.

Claims (3)

In a concrete mold fastening bracket where a butter material fastening bracket is connected to a shaft body that supports the space between opposing concrete molds, a predetermined length is applied to a separator that has connecting screws on both ends of a round steel shaft. Insert a metal tube with a cross-section that has a cross-sectional shape with a cross-section of the hook that is used to hold the butterfly bracket. Insert a cone cup into the threaded portion of the separator connected to the shaft body, and insert the cone tube into the shaft body formed by inserting and securing the insertion tube so that the threaded portions at both ends of the separator remain in the tube. By inserting the body into a separator hole through which the separator made on the concrete formwork piercing plate passes, and fixing the butter material fastening screw to the threaded portion of the separator via the butter metal fitting, the shaft body is made of concrete type Fix the fixed shaft body to the frame plate. A protective tube for protection was inserted, and a cone cup was inserted behind it, and the shaft body was inserted into a separator hole through which the separator of the opposing concrete formwork plate penetrated, and formed in the insertion tube First, the butter material fastening bracket is screwed first by fitting the butter metal fitting with the shape of the latch hole that matches the latching portion and screwing the butter material fastening bracket to the threaded portion of the separator. A concrete formwork that removes the butter clamp and prevents the separator from slipping during the unscrewing operation to release the fixed part, and the shaft body can be removed with the concrete formwork and the cone cup remaining. Fastening bracket. The butter bracket according to claim 1, wherein the flat steel is bent into a substantially L-shaped side surface to form a vertical portion that is hooked and fixed to the shaft body and a horizontal portion on which the butter material is placed, and the shaft to which the separator is fixed. Form a long hole in the butter catch fitting that fits the latching part where the butter catch fitting with a cross-section of the body formed into a substantially elongated hole shape, and fit the elongated hole of the butter catch fitting to the shaft body to which the separator is fixed Batter receiving bracket that prevents the separator from slipping by fixing. 2. The cone cup according to claim 1, wherein the external appearance is a truncated cone shape, the inside is left in a substantially U shape leaving a part of the end part, and a separator or a shaft is passed through the remaining end part. Make a square through hole, insert it into the separator with a single touch, insert a turning tool that fits into the hexagonal through hole after dismantling the concrete formwork, and rotate to peel off the cone cup Corn cup characterized by that.

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