JP2014125825A - Width retaining metal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a width retaining metal fitting which has rigidity sufficient not only for folding away an exposed portion but also for supporting or holding a metallic form, can also be lightweight and improves workability.SOLUTION: A width retaining metal fitting comprises: a base plate 11; outer protrusions 12, 12 formed while being folded in both end portions of the base plate 11; and inner protrusions 13, 13 formed on the base plate 11 inside of the outer protrusions 12 and holding a form 20 with the outer protrusions 12. In each outer protrusion 12, a curved portion 12a is formed which appears in a planar view of the outer protrusion, and in a central part of the base plate 11, an expanded portion 11a is formed which is expanded upwards.

Description

  The present invention relates to a brace that supports a formwork used, for example, when forming a fabric foundation on moisture-proof foundation concrete, and in particular, the formwork of a formwork that is mostly buried in concrete. It relates to metal fittings.

  In general, when building a building in a landfill or in a poorly grounded area, first form a moisture-proof foundation concrete on the entire top surface of the discarded concrete formed on the ground surface, and then place the foundation foundation on the moisture-proof foundation concrete. The so-called “twisting” is performed.

  In recent years, resin-based paints are increasingly applied to the outer surface of the foundation for the purpose of improving durability by suppressing the neutralization of concrete and imparting design properties to the outer surface of the foundation. Since the resin-based paint is applied by a roller, if the foundation outer surface is uneven, adhesion failure occurs, and the foundation outer surface is required to have a smooth finish.

When the foundation concrete is formed by “twisting”, naturally, after the moisture-proof foundation is solidified, the ready-mixed concrete to be the fabric foundation is placed on the moisture-proof foundation. The frame may be displaced. When the formwork is displaced, so-called `` NORO '' of ready-mixed concrete to be placed later penetrates between the solidified moistureproof foundation and the moldwork, and NORO not only stains the outer surface of the moistureproof foundation, Concavities and convexities may be formed on the outer surface of the foundation. Such dirt on the moisture-proof foundation and unevenness on the outer surface of the foundation must be avoided.

  On the other hand, the above-mentioned “formwork for fabric foundation concrete” is for molding fabric foundation concrete standing upright on the outer periphery of the moisture-proof foundation concrete, etc. Must be placed opposite each other. Therefore, what is needed is a “width stop” for keeping two molds in a vertical state at a predetermined interval.

  In such a “separator”, if the foundation that has been supported is removed and the fabric foundation concrete is completed, most of it is buried in the concrete, but at least one “former support part” Will be exposed from the fabric foundation concrete. This exposed part is not only unnecessary for the foundation and the house on it, but also gets in the way of subsequent work and people, so it must be removed in some way.

  A specific example of such a “separator” or a part that removes an excessively exposed portion thereof can be found in Patent Document 1 and the like.

JP-A-8-158648, abstract, FIG.

  The “cutting tool for a concrete formwork space holding metal fitting” proposed in Patent Document 1 is a “space holding metal fitting (corresponding to the“ width stop metal fitting ”described in the present specification) as shown in FIG. "Is engaged with the rising piece of the exposed portion of the spacing metal fitting to be removed and rocked and cut." As a result, the “cutting tool for the concrete formwork spacing bracket” proposed in Patent Document 1 is related to the rising piece of the exposed portion of the spacing bracket that should be removed with a simple operation and with a light force. It can be considered that it can be rocked and cut together.

  By the way, as shown in FIG. 10, the “interval holding metal fitting” proposed in Patent Document 1 has a very complicated shape in which a portion that stops the outside of the mold is formed with a plurality of ribs in the vertical direction. ing. This is considered to be processing to increase the rigidity, but such complicated processing as shown in FIG. 10 is difficult to perform by punching a thin plate, and it becomes a high-cost “interval holding metal fitting”. Conceivable.

  And this type of “spacing holding metal fitting (referred to as“ bowl metal fitting ”in the present specification)” supports or holds a metal mold that has recently become mainstream. They are made of metal and have high rigidity, so that each one is heavy. For this reason, this type of stop fitting has difficulty in carrying and installation workability.

  Therefore, the inventors of the present invention have secured rigidity that can sufficiently withstand “double strike” by supporting or holding a metal mold and reducing the weight for improving workability. As a result of various studies on how to reduce costs and achieve a smooth finish on the outer surface of the foundation, the present invention has been completed.

  That is, the object of the present invention is to achieve a smooth finish on the outer surface of the foundation and to allow the exposed portion to be broken off. Therefore, it is possible to provide a width stop metal fitting that has sufficient workability and can be reduced in weight and has good workability.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the embodiments described later.
“In order to dispose the pair of molds 20 opposite to each other at a predetermined interval, a width stop 10 formed by punching a steel plate,
A base plate 11 installed at the installation location, outer projections 12 and 12 bent at both ends of the base plate 11, and a base plate 11 inside each of the outer projections 12. Inner protrusions 13 and 13 sandwiching the mold 20 with the protrusions 12,
Each outer projection 12 is formed with a curved portion 12a that appears when viewed in plan, and a bulging portion 11a that swells upward is formed at the center of the base plate 11, and the other base plate 11 portions are flattened. Width stop bracket 10 characterized by
It is.

  As shown in FIG. 2, the purse bracket 10 according to the first aspect is for keeping the two mold frames 20, 20 in a vertical state with a predetermined interval, and projects on the base plate 11. The end portions of one mold 20 are supported or held by the outer protrusions 12 and the inner protrusions 13 formed as appropriate. FIG. 2 shows a state in which the lower end portion of each mold 20 is sandwiched between the outer protrusion 12 and the inner protrusion 13, but the purse bracket 10 is turned upside down so that each mold 20 It is also possible to hold the upper end of the.

  In using the purse bracket 10 as shown in FIG. 2, for example, a formwork for the moisture-proof foundation 31 is assembled and disposed on a discarded concrete, and a reinforcing bar is assembled and disposed in the formwork. Put ready-mixed concrete for moisture-proof foundation 31. Then, after the placed concrete is hardened, the formwork 20 for the fabric foundation 32 is assembled and disposed on the outer periphery of the upper part using the width stopper 10, and the inside of these formwork 20, 20. The so-called “twice-up” is performed by placing ready-mixed concrete for the fabric foundation 32.

  The purse bracket 10 according to claim 1 used as described above, firstly, on each outer protrusion 12, a curved portion 12a that appears when viewed in plan is formed, and at the center of the base plate 11, Since the bulging portion 11a bulging upward is formed, the bulging portion 11a and the curved portion 12a are made of the base plate 11 and the outer protrusion 12 made of a flat plate material having high rigidity.

  In other words, even if the stop metal fitting 10 is formed by punching a steel plate thinner than the conventional 2.6 mm, it has a rigidity equal to or higher than that of the conventional product. The overall weight is about half if it is the same size as the conventional product, and it is very easy to carry and work.

  As shown in FIG. 1, FIG. 4, FIG. 7 or FIG. 8, each outer protrusion 12 is formed by punching a thinner steel plate than the conventional one because the curved portion 12a that appears when viewed from above is formed. Even with the outer projection 12, the rigidity with which the end portion of the mold 20 is sandwiched with the inner projection 13 is sufficiently secured.

  In addition, the fact that each outer protrusion 12 has a curved portion 12a means that, even at the base portion of the outer protrusion 12 with respect to the base plate 11, for example, as shown in FIG. Since it is continuous with the plate 11, the vertical state of the outer projection 12 with respect to the base plate 11 is also maintained with high rigidity as compared with the case where it is bent linearly.

  In other words, each outer protrusion 12 is provided with a curved portion 12a, thereby ensuring sufficient rigidity as compared with, for example, a simple “flat plate state”. In addition, since each outer protrusion 12 has a simple shape of the curved portion 12a and can ensure rigidity, for example, a very complicated “folded shape” such as the conventional one shown in FIG. Thus, the entire width stop metal fitting 10 including the outer protrusion 12 is more easily manufactured by punching.

  In the embodiment shown in FIG. 4, the curved portion 12 a is formed so as to bulge outward, but it may be implemented in a shape that bulges inward. In the embodiment shown in FIG. 4, an example in which only one bending portion 12a is formed is shown. However, as shown in FIGS. 7 and 8, a plurality of bending portions 12a are formed and implemented. Is also good.

  And as shown in FIG.3 and FIG.6, the width stop metal fitting 10 concerning this Claim 1 formed the bulging part 11a which bulges upwards in the center part of the baseplate 11 which comprises this. is there.

  That is, in the width stop metal fitting 10 according to the first aspect, the base plate 11 is not a simple flat plate shape, and as shown in FIG. 3 and FIG. In this way, the rigidity of the base plate 11 is increased. The bulging portion 11a can be formed simultaneously with punching the steel plate of the width stop fitting 10, and not only facilitates the manufacture of the width stop fitting 10, but also reduces the cost.

  In this way, the bulging portion 11a bulges between the inner projections 13 upward, but conversely, the vicinity of the inner projection 13 remains flat. For this reason, there is no space for rainwater or termites to enter in the trace of the folded portion 10a in the bottom stop 10 on the lower side of FIG. Rust that contaminates the surface 32 hardly occurs, and the structure surface on the fabric foundation 32 is not eroded by termites.

And the part other than the said bulging part 11a of the baseplate 11 is flat, and since each outer side protrusion 12 is a thing with high rigidity, what is called "NORO" of the ready-mixed concrete put in the 2nd time. It does not sink under the base plate 11. The fact that the so-called “NORO” of ready-mixed concrete does not enter the lower side of the base plate 11 means that the Toro does not contaminate the outer surface of the moisture-proof foundation 31, and the cloth foundation 32 to be formed on the moisture-proof foundation 31 is provided. It also means that there is no deviation from the moisture-proof foundation 31.

    Of course, as shown in FIG. 4, the purse stopper 10 according to the first aspect is formed by forming a tear line 11 e on the immediate outer side of each inner protrusion 13, for example, from the moisture-proof foundation 31 shown in FIG. 2. The portion protruding outward (the left side in the figure in FIG. 4) can be separated from the folded portion 10a by using the folding line 11e, like the purse 10 shown at the lower side of FIG. is there.

  Therefore, the width stop metal fitting 10 according to claim 1 realizes a smooth finish on the outer surface of the foundation and enables the exposed portion to be broken off. Not only can it be easily increased, but it can also support or hold the mold 20 and have sufficient rigidity to withstand “twisting” so that weight can be reduced and workability can be improved. It is a good thing.

In order to solve the above-mentioned problem, the means taken by the invention according to claim 2 is about the stop metal fitting 10 according to claim 1.
“The mark marking line 11 d is formed on the base plate 11 positioned just outside each inner protrusion 13”.

  In order to install the mold frame 20 at a predetermined location or design position using the stop clasp 10 according to the present invention, naturally, the installation position of the stop clasp 10 is important. Is based on the designed surface position of the fabric foundation 32, in other words, the inner surface position of each mold 20.

  In the width stop metal fitting 10 according to the second aspect, the mark marking line 11 d is formed on the base plate 11 positioned just outside each inner protrusion 13. In addition, a fixing hole 11f is formed in order to fix the purse stopper 10 to the moisture-proof base 31 with a nail or the like. As shown in FIG. 2, if the stop metal fitting 10 is positioned so that the mark marking line 11 d fits the outer surface of the moisture-proof foundation 31, the base outer surface does not enter between the moisture-proof foundation and the formwork. Can be finished smoothly.

  Therefore, the purse stop 10 according to the second aspect of the present invention has a function similar to that of the first aspect of the present invention, and in addition to the function of the purse stop 10 itself for realizing installation at the design position of the mold 20. The installation work can be easily performed by using the mark marking line 11d.

As described above, in the present invention,
“In order to dispose the pair of molds 20 opposite to each other at a predetermined interval, a width stop 10 formed by punching a steel plate,
A base plate 11 installed at the installation location, outer projections 12 and 12 bent at both ends of the base plate 11, and a base plate 11 inside each of the outer projections 12. Inner protrusions 13 and 13 sandwiching the mold 20 with the protrusions 12,
Each outer projection 12 is formed with a curved portion 12a that appears when viewed in plan, and a bulging portion 11a that swells upward is formed at the center of the base plate 11, and the other base plate 11 portions are flattened. What I did "
The main features of the structure are as follows. This makes it possible to achieve a smooth finish on the outer surface of the foundation and to be able to break off the exposed part. The mold 20 is supported or held so that it has sufficient rigidity to withstand “twisting”, and the overall rigidity can be easily increased, and the weight can be reduced. Thus, it is possible to provide the width stop metal fitting 10 that is good in workability.

  In particular, the purse bracket 10 according to the present invention is formed with a bulging portion 11a on each base plate 11 and a curved portion 12a on each outer projection 12, so that it has sufficient rigidity as a whole. As a result, it is possible to adopt a steel plate that is thinner than the conventional one. If it is the same size as the conventional product, the weight can be reduced to about half, and it can be transported. Even if it is installed, the workability can be very good.

FIG. 2 is a perspective view of two width stop brackets 10 according to the present invention in a state in which a folded portion 10a is separated for one of them. It is sectional drawing when installing one of the width stop metal fittings 10 in a construction location, and supporting or holding the formwork 20 on this. The same stop metal fitting 10 is shown, (a) is a front view, (b) is sectional drawing seen along the 2-2 line in (a). The same stop fastener 10 is shown, (a) is a top view, (b) is an expanded sectional view of the 3-3 line | wire part in (a) of FIG. It is the elements on larger scale which were seen along the 1-1 line in (a) of FIG. It is an expanded sectional view of the base plate 11 seen along the 2-2 line in (a) of FIG. The Example of the outer side protrusion 12 in which the curved part 12a was formed in multiple numbers is shown, (a) is a partial enlarged plan view, (b) is a partial enlarged front view. The Example of the outer side protrusion 12 which formed the surface contact part 12b in the edge part is shown, (a) is a partial enlarged plan view, (b) is a partial enlarged front view. It is sectional drawing which shows the cutting tool shown by patent document 1. FIG. It is a perspective view which shows the width stop metal which should be cut | disconnected with the cutting tool shown by patent document 1. FIG.

  Next, the invention according to each claim configured as described above will be described with respect to the purse stopper 10 according to the embodiment shown in the drawings. In FIG. 1, the purse stopper before folding the folding portion 10a is illustrated. 10 is shown on the upper side, and the upper body stopper 10 is shown on the lower side.

  The purse bracket 10 is formed by punching a steel plate having a thickness of about half that of a conventional product. The base plate 11 is installed at the installation location, and bent at both ends of the base plate 11. The outer projections 12 and 12 and the inner projections 13 and 13 that are formed on the base plate 11 inside the outer projections 12 and sandwich the mold frame 20 with the outer projections 12 are provided.

  Further, as shown in FIG. 4A, an anchor bolt insertion hole 11c and a folding groove 11b passing through the center of the anchor bolt insertion hole 11c are formed in the middle of the base plate 11. The folding groove 11b is the same as a folding line 11e described later, and is used when the width stop metal fitting 10 is folded in half and used. The anchor bolt insertion hole 11c is used to suspend anchor bolts (not shown) embedded in the fabric foundation 32 when the width stop metal fitting 10 is used to support or hold the upper end of each mold 20. It is what is used. Of course, when the anchor bolt is suspended in the anchor bolt insertion hole 11c, the anchor bolt insertion hole 11c is formed at the center of the base plate 11, so that the anchor bolt is embedded in the center of the fabric base 32. become.

  In this purse 10, a folding groove 11 b similar to the folding line 11 e used when forming the folding portion 10 a is formed in the center of the base plate 11. In this way, it is possible to use the width stop bracket 10 in half.

  When forming the fabric foundation 32 as described above, it is necessary to support or hold the pair of molds 20 with the purse stopper 10, but different from the fabric foundation 32, such as a retaining wall, for example. In some cases, only one mold 20 is used. In such a case, either one pair of the outer protrusion 12 and the inner protrusion 13 is not necessary. That is, it is sufficient to use the width stop metal fitting 10 shown in FIG.

  A fold groove 11 b formed in the center of the base plate 11 and parallel to the mold frame 20 is used to halve the width stop metal fitting 10. If this fold groove 11b is used, the said width | variety stop metal fitting 10 will be easily folded in half like the folding part 10a shown in FIG.

  Moreover, about the width stop metal fitting 10 which concerns on this embodiment, the anchor bolt insertion hole 11c was formed in the center of the base plate 11. FIG.

  As described above, the purse stop 10 according to the present invention is also used for the upper end portion of each mold 20, and in that case, in the fabric foundation 32 formed between the two molds 20. It is convenient to support anchor bolts for fixing the foundation. Therefore, as shown in FIG. 4, in the purse stopper 10, an anchor bolt insertion hole 11 c is formed in the center of the base plate 11, and the upper end of the anchor bolt inserted through the anchor bolt insertion hole 11 c It can be supported by the purse 10.

  Further, as shown in FIG. 4A, a mark marking line 11d is formed on the base plate 11 positioned just outside each inner protrusion 13. This mark marking line 11d is used to set the position of the inner surface of each mold 20 as designed by installing the width stop metal 10 at the installation location so that it matches the so-called “Japanese ink”. It is what is done.

  And the tear line 11e is formed in the back surface of the baseplate 11 in the substantially the same position as the said mark marking line 11d. As shown in FIG. 4B, the break line 11e is formed in a groove shape, and the exposed portion of the base plate 11, that is, the break portion 10a shown in FIG. It can be broken up.

  The base plate 11 is formed with a plurality of fixing holes 11f at predetermined positions for inserting nails or the like for fixing the entire width stopper 10 to the installation location as shown in FIG. is there.

  As shown in FIGS. 1 to 4, outer protrusions 12 are bent at both left and right ends of the base plate 11. As shown in FIG. 4A, each of the outer protrusions 12 is formed with a curved portion 12a that appears when viewed from above. The curved portion 12a may be curved outward as shown in FIG. 4A, but may be curved inward, and not only one, It may be formed and implemented as a plurality as shown in FIG.

  In addition, it is good to form the chamfering part 12d in the shoulder part of each outer protrusion 12 as shown in FIG.3 (b). By this chamfered portion 12d, it is possible to prevent the operator's hand or the like from being damaged when the stop metal fitting 10 is transported or installed.

  Further, in the outer protrusion 12 of the present embodiment, as shown in FIGS. 1, 2, and 3B, a hole 12c is formed in the center portion thereof. As shown in FIG. 2, the hole 12 c is for inserting a nail 40 toward each mold 20 that is held or supported by using the width stopper 10. The nail 40 is used to fix the mold 20 to the width stop 10 and prevent the mold 20 from being lifted or moved unintentionally from the width stop 10.

  Each inner protrusion 13 formed inside each outer protrusion 12 is formed by cutting and raising a predetermined portion of the base plate 11 at the time of punching, and mainly presses each mold frame 20 toward the outer protrusion 12. It is a mission. For this purpose, the bent protrusions 13a are formed on the inner protrusions 13 so as to face the outer protrusions 12 as shown in FIGS. The bent protrusion 13a is formed by bending the inner protrusion 13 literally, and thereby gives a resilient force to the inner protrusion 13 itself.

  Further, the bent projections 13a formed on the inner projections 13 abut against the inner surface of the mold 20 when the mold 20 is supported or fixed. The bent shape is shown in FIG. ), It is difficult to damage the surface of the mold 20 while providing elasticity.

  That is, as shown in FIG. 3 and FIG. 5, the purse 10 having the bent protrusion 13a is formed by forming the bent protrusion 13a and making the inner protrusion 13 elastic. The manufacturing tolerance of the frame 20 and the slide type mold 20 can be dealt with. That is, the thickness of the part to be supported or held of the mold 20 that may be made of metal is not limited to manufacturing tolerances, but of course, the sliding type (sliding door type panel is moved relative to the fixed panel). It varies depending on the type). It is the elasticity generated in the inner projection 13 by forming the bent projection 13a that makes it possible to cope with this change freely.

  In other words, in the width stop metal fitting 10, when the mold frame 20 is sandwiched between the inner projection 13 to which elasticity is given by the bent projection 13 a and the outer projection 12 opposed to the inner projection 13, a corresponding portion of the mold frame 20. Even if there are fluctuations in the thickness, it can be dealt with freely.

DESCRIPTION OF SYMBOLS 10 Securing bracket 10a Folding part 11 Base plate 11a Protruding part 11b Folding groove 11c Anchor bolt insertion hole 11d Marking marking line 11e Folding line 11f Fixing hole 12 Outer protrusion 12a Bending part 12b Surface contact part 12c Hole 12d Chamfering part 13 Inner protrusion 13a Bending protrusion 20 Formwork 31 Moisture-proof foundation 32 Cloth foundation 40 Nail

Claims (2)

In order to arrange a pair of molds facing each other at a predetermined interval, a width stop metal fitting formed by punching a steel plate,
A base plate installed at an installation location, outer protrusions formed at both ends of the base plate, and formed on the base plate inside each of the outer protrusions. With an inner protrusion that sandwiches the frame,
Formed on each of the outer projections is a curved portion that appears when viewed in plan, and formed a bulging portion that bulges upward in the center of the base plate, and flattened the other base plate portions. A featured stop clasp.   2. The purse bracket according to claim 1, wherein a mark marking line is formed on the base plate positioned just outside each of the inner protrusions.

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