JP2009057727A - Concrete formwork fastening fitting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a concrete formwork fastening fitting comprising a structure part provided on the head which is joined to a separator member, a saddle member mounted on the shell on which battens are placed, and a concrete formwork thrusting member provided on the rear, having such a vice structure for improving constructing efficiency. <P>SOLUTION: The concrete formwork fastening fitting is used for a plate separator, a round separator or a plate-like separator. The flat steel square timber 17 is used to make the axial center of a fastening bolt 15 to be thrust and a supporting point of the head close to the shell 13, resulting in an advantageous vice structure. The two battens 17 are placed on the upper side of the forward/backward movable saddle member mounted on the shell 13 to reduce a risk of drop, resulting in safe and easy work. Their volume is smaller than that of steel pipe battens, resulting in easy storage at a site and easy temporary placement on a scaffold. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a concrete formwork fastening metal fitting used for fastening a concrete unit formwork.

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. In this case, a separator member is disposed so as to maintain the formwork at a required interval between the opposing concrete formwork, and the concrete formwork opposed by the separator member. In addition, the butter material that supports the back of the concrete formwork is placed and fixed so as to support the load acting on the concrete formwork when placing concrete, and the concrete formwork units constructed in this way are fixed. The concrete structure is constructed by supplying (pouring) concrete.

There are roughly three types of separator members used in the construction of the above-mentioned concrete formwork into units, that is, round separators that are round bar-shaped separator members, thin plate separators, flat steel plate separators However, these separator members are selectively used depending on the form of the concrete formwork or the design of the enforcer, and as a formwork that is frequently used in the past, the ease of production of the formwork, Made of wood plywood for reasons such as ease of work by nailing to connect the frames, ease of handling such as transportation and handling at the time of construction derived from the wooden frame being lightweight and lightweight Concrete formwork is often used.

In this way, when the concrete formwork is based on wood, for example, a round sepa as shown in Japanese Patent Application Laid-Open No. 2004-027592 or “Product Catalog NO3 Concrete Form” (issued by Okabe Co., Ltd.) is used. Screws in a round separator, each of which is made by drilling through holes at the required pitches on the slabs of the concrete form that are placed opposite to each other with reinforcing bar arrangements, and with both end screws engraved in the through holes Are inserted so as to protrude from the slats, and adjacent molds are connected with nails or connecting metal fittings, and then a form tie (registered trademark) as a fastening metal is screwed to the screw, and the foam is further fixed. Batter material that supports the concrete load acting on the formwork when placing concrete in Thailand is placed vertically and fixed, and the concrete formwork is tightened to form a unit It is being carried out the construction of.

As for the above-mentioned butter material, stress balance is achieved by arranging the butter materials such as round steel pipes (hereinafter also referred to simply as single pipes) or square steel pipes having an outer diameter of 48.6 mm, above and below the foam tie. Generally, a method for supporting maintenance and stability is employed. As the butter material used for the circular formwork, a vinyl chloride pipe (VP pipe) that is easy to bend or a wood material that is easy to cut is used.

Further, since the slats of the concrete formwork may be deformed due to excessive tightening of the nuts of the tightening rods, which are the tightening portions of the foam ties, spacers for preventing slat deformation have been proposed (for example, JP-A 2005 -171662 publication).

Because of this, in recent years, metal foam, which is a metal concrete formwork, has been designed to reduce the time and effort required to produce concrete formwork and to enable repeated use, to facilitate workability, and to reduce costs. Or the concrete formwork which fixed the metal L-shaped edge rib used as a skeleton which drilled the clip hole at fixed intervals to the both ends of a wood plywood came to be evaluated. In this case, when arranging the concrete molds, the plate separators are tightly sandwiched between the concrete molds, and the clip metal fittings are used in the clip holes provided in the edge ribs of the concrete molds for unitization. Attention has been focused on a construction method in which the formwork is integrally fastened, and furthermore, the sheet material is attached by using another clip hole provided in the edge rib of the concrete formwork to adjust the surface passage.
JP 2006-207367 A Japanese Patent Laid-Open No. 2005-171662 JP 2004-027592 A JP 2001-262825 A JP 2001-027044 A Japanese Utility Model Publication No. 06-049658 Product Catalog NO3 Concrete Form-Issued by Okabe Co., Ltd. General catalog issued by Okabe Co., Ltd.

The present invention has been made in view of the above-described points, and is a structure for holding and fastening concrete molds arranged opposite to each other at a predetermined interval, and is formed in a straight line or a curved line that presses the back surface of the concrete mold. Further, the present invention provides a concrete formwork fastening metal fitting having a novel structure for pressing and fixing a plurality of formwork rear surfaces arranged in parallel with a shape of the butter material. More specifically, a flat steel butter material is formed by a universal structure having a head portion that is coupled to a separator member at a body portion on which a saddle member is mounted, and a pressing member that presses the saddle member at a rear portion. It is an object of the present invention to provide a concrete formwork fastening metal fitting that is placed on and pressed against a concrete formwork to make the work of fastening the concrete formwork safe and simple.

Further, the present invention relates to a concrete form clamp fastener used for a separator member such as a plate separator (a separator made of a thin metal plate), a round separator (a separator made of round bar steel), a plate-like separator (a separator made of flat steel).

The present invention has been made in view of the above-described points, and is a metal fitting for tightening a concrete formwork via a separator member that holds a gap between concrete formwork interposed between opposing concrete formwork, The universal head has a connecting part to be coupled to the separator member, and a retractable rod member for placing the butter material on the trunk portion is mounted, and the butter material is placed on the rear portion. The present invention relates to a structure of a concrete formwork clamp that includes a pressing member that presses a gutter member against a concrete formwork. In short, the present invention relates to the structure of the concrete form clamp fastener constituted by the structure of the head, the structure of the trunk, and the structure of the rear.

In the head structure described above, an insertion hole similar to the locking hole provided in the plate separator is formed in the plate-shaped head. Therefore, a concrete separator is fastened by using the protruding part of the clip fitting that sandwiches the plate separator between the ribs of the concrete mold frame and is connected by the clip fitting, thereby providing a substantially concave groove pinching opening. At the same time as pressing the member, the groove clamping port is fitted to the edge rib that is the connecting portion of the concrete mold to prevent the concrete mold clamp from coming off. As a result, the use of plate separators for mounting concrete form clamp fasteners eliminates the troublesome task of drilling a plurality of separator holes in the slats and attaching round separators. Maintenance / inspection management of the concrete form clamp fasteners is facilitated because no severely worn screws are used in the joints.

In addition, in the structure of the head, a separable screw member formed by forming a perforated screw to be screwed with a round separator screw formed at both ends of a round steel as a separator member is tightened with a concrete mold. Attach to the head of the bracket. Therefore, it is possible to use even for a round separator, and depending on the frequency of use, it is easy to replace the threaded member by inserting a rivet-like fixing pin and mounting it.

Furthermore, in the structure of the head, the connecting plate formed by drilling the insertion hole through which the threaded portion of the round separator formed at both ends of the round steel as the separator member passes is connected to the body portion of the concrete formwork fastener. It is fixed to the tip of the head perpendicularly to the head, and is fastened and fixed by a long nut that is screwed into a thread portion of a round separator protruding from the insertion hole of the connecting plate. As a result, the use of an inexpensive long nut for the coupling tightening portion, which is a screw member that is heavily worn, makes it easy to replace and obtain a cost effect.

In the body structure described above, the body part is formed at the lower part of the flange member formed by forming a substantially U-shaped edge for stably supporting the butter material at the rear end part of the metal plate. An encircling member formed so as to embrace is fixed, and a tip portion of the enveloping member has a substantially concave groove pinching port that fits into a concrete mold frame edge rib in order to clamp and fix a concrete mold clamp. Provide. However, it is only a concrete form clamp fastener used for a plate separator that requires a groove clamping port.

In addition, in the body part of the concrete form clamp fastener used for the round separator, a pin hole for inserting a substantially C-shaped stopper pin is provided in the body part to limit overtightening of the butter material. The pin is sandwiched and the movement of the flange member is restricted to prevent the butter material from being over-tightened. Therefore, by preventing overtightening of the butter material, deformation of the dam plate is prevented, and the smoothness of the concrete surface, which is a casing, is maintained.

In the structure of the rear end portion described above, a nut to which a fastening bolt that presses the collar member is screwed is fixed to the rear portion of the body portion, and the collar member on which the butter material is placed is pressed.

Further, in the plate-shaped separator described above, the present applicant as the separator member proposed in Japanese Patent Application Laid-Open No. 2006-207367 is engaged with both end portions of the plate-shaped separator for removing unnecessary portions from the concrete surface. A connecting hole for inserting a connecting pin into a connecting member fixed to the head of the concrete form clamp fastener is formed in the plate-like separator having a locking hole to be drilled. As a result, the concrete form clamp fastener and the plate-like separator are connected by the connecting pin, so that the tightening work is simplified and the maintenance and inspection management of the concrete form clamp fastener is facilitated.

In the present invention, it is a metal fitting for tightening a concrete formwork through a separator member interposed between opposing concrete formwork to maintain the interval between the concrete formwork, and formed in a universal structure. It is equipped with a pressing member that presses the butter material placed on the saddle member on the concrete formwork at the rear, while the saddle member placing the butter material is mounted on the barrel portion having the proof stress so as to be able to advance and retreat. In the form of each concrete form clamp fastener, the structure is coupled to the separator member for use with a plate separator, round separator, and plate separator as separator members at the head.

In the concrete formwork tightening bracket described above, the shaft center and head of the tightening bolt, which is a pressing part of the concrete formwork tightening bracket made of a universal structure by using flat steel as the butter material Since the support point of the is closer to the body, the bending moment applied to the body, which is the main body, is reduced. As a result, since it is advantageous in terms of stress, the member of the body portion, which is the main body portion, can be made small, and the concrete formwork fasteners become lightweight.

In addition, the steel pipe butterfly material placed on the top and bottom with the foam tie sandwiched between them is placed on the saddle member that is mounted on the trunk of the concrete formwork clamp with flat steel butterfly material from above. It becomes simple and safety is improved.

Furthermore, the use of flat steel for the butter material reduces the surface area compared to a single tube, and facilitates rust prevention treatment. Note that the use of hard flat steel S50C, S55C, etc., which is a special steel that has a high degree of stress and is difficult to bend as the butter material, improves the attributes of the butter material and is advantageous for maintenance.

In connection with the above description, the concrete form clamp fastener used for the plate separator has a plate-like head provided with an insertion hole similar to the locking hole established in the plate separator, A retractable eaves member for placing the butter material is mounted on the structure, and a pressing member for pressing the butter material placed on the eave member against the concrete formwork is provided at the rear, and is continuously provided. By attaching a plate separator between the edge ribs of the concrete formwork and attaching the concrete formwork tightening metal fittings using the clip metal fittings connected through the clip holes formed in the edge ribs. This will save you a lot of work.

Also, in the body part of the concrete form clamps used for round separators, a pin hole for inserting a stopper pin for preventing deformation that prevents overtightening of the butter material is perforated, and the stopper pin is inserted and attached. Since the movement of the member is limited, the dam is not affected. Therefore, handling work becomes easy without carrying a special spacer metal fitting.

The shape of the concrete form clamps used for plate separators, round separators, and plate separators has a universal structure, and a flat member that can be advanced and retracted is mounted on the body to stabilize flat steel butter materials. By placing two sheets on top of each other from above, the placement and removal of the butter material is safe and the workability is improved. In addition, the use of flat steel for the butter material reduces the burden on the bending moment because the shaft center of the clamping bolt and the support point of the head provided in the pressing part approach the body part, which is structurally advantageous. It becomes. Further, by using flat steel for the butter material, the volume is reduced as compared with a single pipe or the like, so that storage on site and temporary placement on a scaffold are facilitated.

Hereinafter, an embodiment of a concrete formwork fastener according to the present invention will be described based on FIG. 1 to FIG. 15 or reference numerals, but in order to facilitate grasping of a concrete formwork fastener having a universal structure, It is divided into the structure of the head that is the connecting part that connects each part to the separator member, the structure of the trunk that mounts the collar member for placing the butter material, and the structure of the rear part that is the pressing part that presses the collar member. In principle. The butter material can be used vertically or diagonally, but will be described on the assumption that it will be used horizontally.

Further, the present invention will be described in further detail based on the embodiments shown in the drawings. However, the present invention is not limited to this, and can be appropriately modified without departing from the technical idea of the present invention. Of course it should be understood.

First, the embodiment will be described with reference to FIG. 1 to FIG. 5 or FIG. 15, but the concrete form clamp fastener 2 used for the plate separator 1 has an L-shaped cross-section with clip holes formed at regular intervals. The plate separator 1 shown in FIG. 2 is sandwiched between the edge ribs 3 connecting the single-piece concrete formwork 5 with the edge ribs 3 fixed to both ends of the support plate 4 with bolts or the like, and the clip ribs are interposed therebetween. As shown in FIG. 15, a plurality of concrete molds 5 are connected to 5a, 5b, and 5c. In the concrete mold 5, wood or metal intermediate ribs 7 are arranged to reinforce the support plate 4.

The plate separator 1 described above is provided with locking holes for locking the clip metal fitting 6 at both ends, and the receiving portion 8 and the bent tab 9 for facilitating temporary fixing are provided. Is formed.

Further, the plate separator 1 is provided with a V-cut groove 10 for bending and cutting at a position where it does not protrude from the concrete surface. Moreover, when the rust prevention process of a cut part is required, it is preferable to make the material of the plate separator 1 into stainless steel and to omit a rust prevention process.

In addition, it is desirable to stick a soft PVC magnet sheet or a gap tape having the same thickness as the plate separator 1 in the gap between the plate separators 1 sandwiched between the edge ribs 3. However, when the thickness of the plate separator 1 is 1.2 mm or less, it is desirable to omit this process.

In the structure of the head which is a connecting portion coupled to the separator member, the clip metal fitting 6 protrudes from the head that extends in the shape of an arm formed in the shape of an approximately L-shaped smoking pipe as shown in FIG. An insertion hole 12 for coupling to the part 11 is drilled, and the contact part 14 for preventing the rotation of the body part 13 is in contact with the side part of the edge rib 3 below the head end surface. The hole core of the insertion hole 12 is made to coincide with the line that is the axis of the fastening bolt 15 that presses the flange member described later.

In the structure of the trunk portion on which the flange member for placing the butter material is mounted, the trunk portion 13 is a portion that opposes the bending moment and has a cross section required for proof stress. It is a main part comprising a pressing member for pressing the flange member 16 at the rear part, and a through hole 12 for coupling to the projecting part 11 of the clip metal fitting 6 at the rear part. A fitting port 18 having an edge for receiving the butter material 17 at the rear is bent into a substantially U-shaped hook shape as shown in FIG. 1, and a substantially concave shape as shown in FIG. A surrounding member 20 bent in a U-shape surrounding the trunk portion 13 is fitted into the flange portion 16 having the groove pinching opening 19 formed therein, and is fixed to the back surface of the flange member 16 by welding. It becomes.

In the structure of the rear part, which is a pressing part that presses the flange member, a nut 21 to which a tightening bolt 15 that presses the flange member 16 is screwed is welded and fixed to the rear end portion of the body part 13. In addition, the trunk | drum 13, the arm-shaped head, the nut 21, and the insertion hole 12 can also be integrally molded by pressing forging.

FIG. 3 shows the front surface of the flange member, and shows an engagement portion of the flange member 16 for pressing the surrounding member 20 and the butter material 17. The flange member 16 is moved forward and backward by the rotation of the tightening bolt 15. It can be moved, and is a slide type that can be moved back and forth when placing and removing the butter material 17 and advanced and retracted when tightened.

FIG. 5 is a perspective view of the clip metal fitting 6. The clip metal fitting 6 is a known metal fitting that has been widely used.

Regarding the method of using the concrete formwork clamp 2, it is inserted into the protrusion 11 of the clip bracket 6 described above, and the flange member 16 having the concave groove clamping port 19 mounted on the body 13 is connected to the flange member 16. After the material 17 is placed, the clamp bolt 15 screwed onto the nut 21 fixed to the rear portion of the body portion 13 is rotated and tightened to press the flange member 17 on which the butter material 17 is placed, and at the same time, pinches the groove. The concrete mold fastening metal fitting 2 is fixed by fitting the opening 19 to the edge rib 3. Therefore, the plurality of concrete molds 5 arranged in series press the back surfaces of the edge ribs 3 and the intermediate ribs 7 by the butter material 17, and the plurality of concrete molds 5 arranged in a row are attracted to the butter material 17. An all-round and smooth concrete formwork will be constructed.

FIGS. 6 to 9 are concrete form clamps 23 used for the round separator 22, and the structure of the head which is a connecting portion coupled to the separator member is substantially as shown in the cross section of FIG. 8. A metal member is formed by compression forging into a two-legged heel or concave shape, and a screwing member 25 in which a perforated screw 24 screwed to the round separator 22 is fitted at the head portion is fitted into the front end portion of the trunk portion 13, and a rivet A fixed fixing hole 26 for inserting a fixed pin is formed, and the fixing pin 27 is inserted and fixed. Further, an insertion hole 29 for inserting the locking pin 28 is drilled at the tip of the fixing pin 27, and it is formed in a substantially C shape as shown in FIG. 9 by a piano wire which is a metal material having good elasticity. The locking pin 28 for preventing the disconnection is locked. The perforated screw 24 core of the screwing member 25 is made to coincide with the axis of the fastening bolt 15. In addition, the screwing member 25 is configured to be separable because it is heavily worn and is periodically replaced depending on the frequency of use. Therefore, the above-described locking pin 28 is configured so that it can be easily fitted and removed.

In the structure of the trunk portion on which the flange member for placing the butter material is mounted, the trunk portion 13 is a portion that opposes the bending moment and has a cross section having a thickness necessary for the proof stress. , A main part having a connecting member for coupling to the round separator 22 at the head and a pressing member for pressing the flange member 30 at the rear part, and the rear part of the metal plate with respect to the trunk part 13 A fitting port 18 having a flange for receiving the butterfly 16 is bent into a U-shaped member 16 bent in a substantially U-shaped hook shape as shown in FIG. The encircling member 20 is fitted to the body part 13 and welded and fixed to the back surface of the flange member 16, and a stopper pin 31 for preventing deformation of the dam plate 4 is inserted into the body part 13. The pin hole 32 is drilled, and the stopper pin 31 is inserted and clamped into the body portion 13. That. Accordingly, the stopper member 31 and the surrounding member 20 fixed to the lower part of the flange member 30 are brought into contact with each other, so that the movement of the butter member 17 is restricted, and the dam plate is deformed in a curved manner or a slat plate to which a soft heat insulating material is attached. 4 is prevented from being compressed, in other words, does not affect the dam 4.

The form of the stopper pin 31 described above is formed in a substantially C-shaped clip shape as shown in FIG. 8 using a metal bar having good elasticity, and the stopper pin 31 is inserted into the pin hole 32 of the body portion 13. Pinch. However, the stopper pin 31 is not necessarily required and is not required when it is not affected by the deformation of the dam plate, and can be easily removed.

The structure of the rear part, which is a pressing part that presses the flange member, is the same as the concrete formwork clamp 2 described in the first embodiment.

As for the method of fixing the concrete form clamp fastener 23, the round separator 22 is inserted into the separator hole 33 perforated in the bottom plate 4, and is received by the cone 34 attached to the round separator 22, and the round protruding from the bottom plate 4 is used. The concrete mold tightening metal fitting 23 is screwed into the threaded portion of the sepa 22, and the round sepa 22 and the concrete mold are fastened to a spurner locking portion (not shown) formed on the round sepa 22 using a tool such as a sprana. The frame tightening bracket 23 is clamped and fixed to the dam plate 4.

FIGS. 10 to 12 show concrete form clamps 35 used for the round separator 22, and in the structure of the head which is a connecting portion coupled to the separator member, the metal plate is shaped as shown in FIG. 12. An insertion hole 37 of the round separator 22 is drilled in the formed connecting plate 36, and the connecting plate 36 is welded and fixed so as to be orthogonal to the tip of the body portion 13. Further, in the connecting plate 36, the hole core which is the insertion hole 37 of the round separator 22 is drilled so as to be positioned on the line of the axial center of the tightening bolt 15 in the side view. Specifically, in the side view, the shaft center of the fastening bolt 15 and the hole center of the insertion hole 37 coincide, but in the plan view, the shaft center of the fastening bolt 15 and the hole center of the insertion hole 37 are slightly flat. As a matter of mind, the butter member 17 and the flange member 30 are fixed in close contact with each other so that buckling due to the eccentric force is assisted.

The structure of the trunk portion on which the flange member for placing the butter material is mounted is the same as that of the concrete formwork clamp 23 described in the second embodiment.

The structure of the rear part, which is a pressing part that presses the flange member, is the same as the concrete formwork clamp 2 described in the first embodiment.

Regarding the method of fixing the concrete form clamp metal fitting 35, the round separator 22 is inserted into the separator hole 33 perforated in the bottom plate 4, received by the cone 34 attached to the round separator 22, and the round protruding from the bottom plate 4. A connecting plate 36 that is fixed to the head of the concrete form clamp fastener 35 is inserted into the threaded portion of the separator 22, a long nut 38 is screwed into the threaded portion, and tightened using a tool such as a spurner. Thus, the round separator 22 and the concrete form clamp fastener 35 are clamped and fixed to the bottom plate 4.

13 and 14 show a concrete form clamp 40 used for the plate-shaped separator 39. In the structure of the head which is a connecting portion coupled to the separator member, a metal plate having a rectangular cross section is shown in FIG. A locking hole 43 formed in a plate-like separator 39 is formed on a connecting member formed by welding a U-shaped metal piece 41 bent in a substantially U-shaped faucet shape as shown in FIG. An insertion hole 45 for inserting a connection pin 44 for locking to the body is drilled, and the indirect plate 42 is welded and fixed above the distal end portion of the body portion 13. Further, the front end of the body portion 13 is cut off at an angle in order to facilitate the extraction operation of the connecting pin 44. Further, the movement of the flange member 30 is stopped by the contact between the indirect plate 42 and the tip of the flange member 30 against the contact portion 46, and excessive tightening by the tightening bolt is prevented. Therefore, the bending deformation of the dam plate 4 or the compression deformation of the dam plate 4 to which the soft heat insulating material is attached is prevented, in other words, the dam 4 is not affected.

The connecting pin 44 described above is made of round steel to have a truncated conical taper shape to facilitate insertion of the tip portion, the intermediate portion is formed to have a circular diameter that can be inserted into the insertion hole 45, and the upper end portion is a stopper ( It is formed in a circle diameter with a thickness suitable for latching. However, it should be understood that this shape is not particularly limited and may be adapted to the application.

The structure of the trunk portion on which the flange member for placing the butter material is mounted is almost the same as the concrete form clamp fastener 23 described in the second embodiment, and the difference is that the trunk portion 13 is perforated. The pin hole 32 for inserting the stopper pin 31 for preventing the deformation of the dam plate 4 is unnecessary.

The structure of the rear part, which is a pressing part that presses the flange member, is the same as the concrete formwork clamp 2 described in the first embodiment.

The plate separator 39 described above uses the plate separator proposed by the present applicant in Japanese Patent Laid-Open No. 2006-207367, and twists unnecessary portions protruding from the concrete surface at both ends of the flat steel. A cross-sectional defect portion 47 for cutting is formed, a receiving plate 49 for receiving the cone 48 is locked to the defect portion, and a truncated cone shape having a projecting portion 50 that supports the axis of the plate-like separator 39. A cone 48 formed with a through-hole 51 through which the plate-like separator 39 is inserted in the shaft center portion is fitted into the separation hole 52 of the dam plate 4, and the protruding portion 50 is fitted into the plate-like separator 39. A locking hole 43 corresponding to the insertion hole 45 of the connecting member 40 of the concrete formwork clamp 40 is drilled in the protruding portion.

As for the method of fixing the concrete form clamp 40, the plate separator 39 is inserted into the separator hole 33 perforated in the slat plate 4 and received by the cone 48 attached to the plate separator 39. The plate separator 39 is fitted to a U-shaped metal piece 41 fixed to the head of the metal fitting 40 via an indirect plate 42, and the connecting pin 44 is inserted into the insertion hole 45 of the connecting portion to tighten the round separator 22 and the concrete mold frame. The metal fitting 35 is clamped and fixed to the dam plate 4.

Hereinafter, FIG. 15 is an example showing the arrangement of the concrete mold clamps, and the concrete mold clamps 2 are interposed via plate separators 1 that are sandwiched between edge ribs 3 that are continuous portions of the concrete mold 5. Then, it is fixed by being connected to the protruding portion 11 of the clip metal fitting 6 fitted and fixed by the clip metal fitting 6. In addition, the concrete formwork clamp 23 or the concrete formwork clamp 35 is formed by sandwiching the plate 4 with the round separator 22 and the concrete formwork clamp at a position where the edge rib 3 and the butter material 17 do not intersect. The concrete form clamps 40 are fixed to the planks 4 by sandwiching the planks 4 with the plate separators 39 and the concrete form clamps.

The side view which shows the structure of the concrete form clamp fastener used with respect to the board separator concerning this invention The top view which shows the structure of the concrete form clamp fastener used with respect to the board | plate separator concerning this invention AA line front sectional view of FIG. 1 showing the front of the flange member The top view which shows the collar member for trunk | drum material mounting of the concrete formwork clamp | tightening metal fitting concerning this invention Perspective view of clip metal fitting used to connect concrete formwork The side view which shows the structure of the concrete form clamp fastener used with respect to the round separator concerning this invention The top view which shows the structure of the concrete form clamp fastener used with respect to the round separator concerning this invention BB front sectional view of FIG. 6 showing the stopper pin CC front sectional view of FIG. 7 showing the screw member The side view which shows the structure of the concrete form clamp fastener used with respect to the round separator concerning this invention The top view which shows the structure of the concrete form clamp fastener used with respect to the round separator concerning this invention DD front sectional view of FIG. 10 showing the connecting plate The side view which shows the structure of the concrete form clamp fastener used with respect to the plate-shaped separator concerning this invention The top view which shows the structure of the concrete form clamp fastener used with respect to the plate-shaped separator concerning this invention The partial front view which shows arrangement | positioning of the structural member which constructs a concrete unit formwork

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plate separator 2 Concrete form clamp fastening metal 3 Edge rib 4 Suspension plate 5 Concrete form 6 Clip metal fitting 7 Intermediate rib 8 Receiving part 9 Bending tab 10 V cut groove 11 Protrusion part 12 Insertion hole 13 Trunk part 14 Contact part 15 Tightening bolt 16 鞍 member 17 Batter material 18 Fitting port 19 Groove clamping port 20 Enclosing member 21 Nut 22 Round separ 23 Concrete form clamp fastener 24 Drilling screw 25 Screwing member 26 Fixing hole 27 Fixing pin 28 Locking pin 29 Insertion hole 30 Gutter member 31 Stopper pin 32 Pin hole 33 Sepa hole 34 Cone 35 Concrete formwork clamp 36 Connecting plate 37 Insertion hole 38 Long nut 39 Plate-like separator 40 Concrete formwork fastening 41 U-shaped hardware 42 Indirect plate 43 Locking hole 44 Connecting pin 45 Insertion hole 46 Contact part 47 Surface defect 48 cone 49 receiving plate 50 protruding portion 51 through hole 52 Sepaana 53 slab form 54 lateral rib 55 laying wood 56 Concrete

Claims (5)

This is a concrete mold fastening fastener that fastens a concrete mold via a separator member that is interposed between opposing concrete molds and maintains the interval between the concrete molds, and is similar to a locking hole provided in the separator. A plate-shaped head having an insertion hole, and a saddle member on which the butter material is placed on the trunk portion are movably mounted, and the saddle member on which the butter material is placed on the rear portion is a concrete formwork. A concrete form clamp fastener comprising a pressing member that presses against a concrete mold.   A concrete form clamp fastener that fastens a concrete formwork via a separator member interposed between opposing concrete formwork to maintain the distance between the concrete formwork, and includes screws and screws formed on the head of the separator. It has a head with a screwing member formed with a screw hole to be joined, and a saddle member on which the butter material is placed on the trunk portion is movably mounted, and the butter material is placed on the rear portion. A concrete form clamp fastener comprising a pressing member for pressing the eaves member against the concrete form.   A concrete mold fastening metal fitting that clamps a concrete mold via a separator member interposed between opposing concrete molds to maintain the interval between the concrete molds, and a threaded portion formed at the end of the separator. A connecting plate formed by penetrating a through-hole penetrating is fixed to the head at right angles to the body part, and a saddle member on which the butter material is placed is mounted on the body part so as to be able to advance and retreat, and at the rear part A pressing member that presses the flange member on which the material is placed against the concrete mold, and is fastened and fixed by a nut that is screwed into a thread portion of the separator member protruding from the insertion hole of the connecting plate. Concrete formwork clamps.   A concrete mold fastening metal fitting that clamps a concrete mold via a separator member that is interposed between opposing concrete molds to maintain the distance between the concrete molds, and is a locking hole formed in the head of the separator. And having a head mounted with a substantially U-shaped connecting member provided with an insertion hole similar to the above, and a saddle member on which the butter material is placed on the trunk portion is movably mounted, and the butter material on the rear portion. A concrete formwork clamp, comprising: a pressing member that presses against the concrete formwork the eaves member on which is placed.   A concrete mold fastening metal fitting that clamps a concrete mold via a separator member that is interposed between opposing concrete molds and maintains the interval between the concrete molds, and is a saddle member that places a butter material on the trunk Is mounted so as to be able to advance and retreat, and has a connecting part that joins the separator member at the front end of the body part, and a tightening bolt for pressing the flange member on which the butter material is placed is screwed above the rear part. By fixing the nut and using flat steel butter material, the shaft center of the tightening bolt approaches the torso so that the bending moment applied to the torso is reduced, and the butter material is placed from above. A concrete form clamp, characterized by the fact that

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