JP2001032523A - Fitting for supporting form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily obtain an exact concrete foundation by installing a gate type form-support fitting provided with a form-receiving member on a support member having a leg capable of adjusting height on a rubble stone or the like. SOLUTION: A reinforcing bar 41 is assembled by matching to the layout of foundation on leveling concrete or a broken stone 40 or the like, and a form- support member 3 is mounted on a base therebetween. In this case, even if irregularities exist on the base, a screw 15 is turned to adjust the height so as to hold the height constant. After the height is fixed, a form-receiving member 2 is fixed thereon, a pair of forms 42 is attached and an upper part is fixed by a width fixing material 43. In addition, an anchor bolt 44 is installed between the forms 42. Concrete is placed on a foundation footing part 45, subsequently placed on a foundation rice part 46, curing and hardening are performed to be integrated, and house foundation is formed. Thereby a disposable form support fitting can be supplied in a large quantity and at a low cost, and the cost can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork support which is used to support a formwork when casting concrete for a foundation of a building, a house or the like.

[0002]

2. Description of the Related Art
As a foundation work for a building or a house, concrete is cast in a formwork. When assembling the formwork, pillows are laid on the bottom of the formwork. In this case, if the ground with the split stone is not horizontal, the height of the footing part of the foundation and the slab (moisture-proof foundation plane) will be increased There was a problem that adjustment of the length could not be performed accurately. Furthermore, in recent years, the rise of houses and the like has progressed,
The height of the footing and the slab is no longer fixed, and a method that can be adjusted to various heights has been desired.

[0003] Conventionally, as a basic construction method for houses and the like, concrete is first poured into a footing portion or a soil portion of the foundation structure, and after the cured concrete has been set after a curing period, the foundation structure is started up. Concrete casting was performed by assembling part of the formwork, and the concrete placing process was performed in two separate steps. However, if the concrete casting process of the foundation structure is divided into two times, a curing period of 1-2 days is required, which is contrary to the recent situation where shortening of the construction period is desired, and the working efficiency is accordingly increased. It was bad. Furthermore, if the concrete casting is performed in two steps as described above, a step or the like is generated between the footing portion where the first concrete is placed and the rising portion of the foundation structure where the second concrete is placed. The resulting concrete did not integrate and there was a problem with the strength.

In the case of using the above-mentioned metal fitting in which the mold supporting portion and the holding member for holding the same are used in the form supporting metal fitting, the horizontality of the foundation is tilted, so that the above-mentioned form supporting material is formed. The metal fittings are also inclined, and therefore the formwork is also inclined. If concrete is poured with the inclination, the foundation concrete will not be vertical and an accurate foundation cannot be obtained. If you try to fix it before casting concrete,
The above-mentioned metal fittings had to be removed and the ground and the solid foundation had to be leveled, which required a great deal of labor and time.

[0005] The present invention solves the above-mentioned problems of the prior art. In a concrete placing process of a foundation structure in a house or the like, the height of a footing portion and a slab of the foundation can be adjusted, and the foundation can be adjusted. It is an object of the present invention to provide a formwork support fitting that can be assembled and used on a rising portion and that can correct the formwork horizontally when the formwork is tilted due to the horizontal displacement of the foundation.

[0006]

According to the present invention, there is provided (1) a mold receiving member for holding lower ends of two molds at a predetermined interval, and a pedestal for mounting the mold receiving members. A holding member provided with a supporting leg which is connected to the supporting member and whose height can be adjusted; and (2) a claw-like member instead of a pedestal for the supporting member. (1) or (2), wherein the form support metal according to the above (1) having a projection, and (3) a plurality of support legs are provided, each of which is formed so as to be independently adjustable in height. Formwork support bracket of the present invention.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, a mold support 1 according to the present invention has a form receiving member 2 for holding lower ends of two form forms at a predetermined interval, and mounts the form receiving member 2 thereon. And a supporting leg 6 formed so as to be adjustable in height by being connected to a supporting member 5 provided with a pedestal 4 to be formed. Can be separated and function as the form receiving member 2 by being mounted on the pedestal 4 without being fixed to the pedestal 4 provided on the support member 5 of the holding member 3. , The form receiving member 2
Can be fixed to the pedestal 4 or the support member 5 with bolts or the like. The members used for the formwork bracket 1 are all made of metal, and the metal is iron,
Although stainless steel and cast iron are mentioned, iron and stainless steel are preferred from the viewpoint of strength and processing such as welding, and when made of iron, galvanized steel sheet and round bar material are preferred.

When the form receiving member 2 is mounted on the support member 5 provided with the pedestal 4, the form receiving member 2 is provided so as to coincide with the longitudinal direction of the form receiving member 2 and the longitudinal direction of the support member 5. Is preferred. The thickness of the steel plate used for the form receiving member 2 is about 2 to 10 mm, and the length of the member 2 in the longitudinal direction does not exceed the length of the supporting member 5 in the longitudinal direction. Preferably, the length in the ratio of 0.7 to 1.0 with respect to the length in the longitudinal direction of the support member 5 is preferable.

As shown in FIG. 1, the form receiving member 2 has two end-side dies which stand vertically at one end and the other end of a horizontally long plate-like body. Frame holding plates 7a, 7b
And two inner mold holding plates 8 rising vertically from a predetermined position between the two end-side mold holding plates 7a and 7b.
a, 8b are provided, and an inner form holding plate 8a, an end form holding plate 7a, and an inner form holding plate 8b
And two frame receiving portions 2a and 2b each including a frame pressing plate 7b on the end side.

In the form receiving member 2, the space between the form pressing plates 7a and 7b on the end side is formed at the space of the rising portion of the foundation, and the space between the inner form pressing plates 8a and 8b is concrete. It is the thickness of the rising part of the foundation after casting, and the thickness is generally 120 mm, 135 mm, 150 m
m, 160 mm, 180 mm, 210 mm, etc. are used. In order to be able to arbitrarily change the distance between the end-side frame pressing plates 7a and 7b, several types of the frame receiving members 2 having the fixed distance are prepared and used, or the distance is variable. The frame receiving member 2 can also be used. The width of the form receiving member 2 in the short direction is not particularly limited as long as it has a width capable of receiving and supporting the form, but it is usually preferably formed to 20 to 40 mm.

The form receiving member 2 is formed from a single flat plate-shaped metal plate, and is punched into a predetermined position of the metal plate into the shape of the inner form holding plates 8a and 8b. It is raised on one surface of the metal plate to form inner mold holding plates 7a and 7b. Next, the metal plate is bent toward the surface on which the inner frame holding plates 8a and 8b are raised at the positions of the frame holding plates 7a and 7b at predetermined end portions on both ends of the metal plate. The form receiving members 2 are formed by forming the form holding plates 7a and 7b on the side.

As shown in FIG. 1, it is necessary to provide at least two pedestals 4 provided on the holding member 3 for each pedestal. A rising portion is provided in parallel along the longitudinal ends of the holding member 3 of the pedestal 4 in accordance with the width of the form receiving member 2 as a guide line in the direction so as not to fall. . The width of the rising portion is the same as or slightly larger than the width of the form receiving member 2. The pedestal 4 has a length in the longitudinal direction of the support member 5 of 30 to 50 mm and a width between rising portions of 25 to 50 mm.
It is formed in a size of 55 mm, and is attached to the support member 5 by welding or the like. Further, the pedestal 4 may be provided with a screw hole for screwing, and fixed to the support member 5 by screwing.

As shown in FIG. 1, the support member 5 is formed by forming a round bar-shaped metal material into a U-shape, and both ends of the U-shape face downward and are connected to the support legs 6a and 6b, respectively. Has been established. The shape of the support member 5 is such that the upper part on which the pedestal 4 is provided is formed such that two or more pedestals are provided at the same height.
Although there is no particular limitation, the pedestal 4 is usually provided so that it is provided horizontally. The portion of the support member 5 connected to the support legs 6a, 6b is preferably vertical so that the height can be adjusted. In the case shown in FIG. 1, the support member 5 is formed in a U-shape from a round bar-shaped material, and is reinforced by a reinforcing material.
Reinforcement is optional.

The support legs 6a and 6b are independently extendable up and down, and are provided at the lower ends of the leg members 9 (9a and 9b) formed so as to be fixed to an arbitrary length. And a plate-shaped ground plate 10 (10a, 10b) for stably placing the form support metal fitting 1 on the ground. As described above, when the lengths of the plurality of support legs are independently adjustable, the height of the formwork is not limited even if the foundation of the concrete casting surface is different or slightly flat. Can be adjusted with high precision.

As the means for vertically extending and contracting the support legs 6a and 6b, any means such as a screw type or a slide type is used. The vertical expansion and contraction width is the amount by which the height of the footing portion and the slab of the foundation of a house or the like can be adjusted.
It is preferable that the height of the pedestal 4 can be changed between 90 and 170 mm. In the case of FIG. 1, the height is adjusted by a screw type. However, the height is adjusted by screwing to a nut 11 spot-welded in advance to a predetermined position above both lower ends of the round bar of the support member. Screw head (for example, a hexagonal screw, with a cross-shaped groove on the top surface of the head)
Is rotated by a spanner, a cross driver or the like, the screw 15 moves up and down, and the leg members 9a and 9b connected to the support member 5 move up and down, thereby adjusting the height.

Referring to another example of the mold supporting bracket 1 of the present invention, as shown in FIG. 2, the same form receiving member 2 as that shown in FIG. 3 is obtained by press-forming a long plate-shaped metal plate and then working, and is manufactured from a spanning frame 31 (FIG. 3) and a mold frame 33 (FIG. 4) shown in FIGS. Instead of the pedestal 4 of the above-described example, the claw-like projections 12 are provided on the crossover frame 31 at the time of press-molding the crossover frame 31, and the holding member 3 will be described.

As shown in FIG.
First, a metal plate 30 in the form of an elongated flat metal quadrilateral
The four notches provided along both side edges of the metal plate 30 at predetermined positions from both ends in the longitudinal direction of the metal plate 30 are two of the notches opposed to each other in the longitudinal direction of the metal plate 30. The metal plate 30 is provided along one side edge of the metal plate 30 with the line segment connecting the cutout portions as a base point (dashed-dotted lines a and b in the figure). It is provided along the line segment (dashed line c in the figure) extending the ends of the notches and extending to both ends in the longitudinal direction of the metal plate 30 and the other side edge of the metal plate 30. The two cut-away portions are connected along the line segments c and d at the portion sandwiched by the line segments (dashed line d in the figure) extending to both ends in the longitudinal direction in the same manner as described above. Toward the inside of the minute (in the case of FIG. 3, the line segment
Four arc-shaped cuts are provided on one side of c and d).

Next, both sides along the longitudinal direction of the metal plate 30 are bent along both side edges, and each of the line segments c and d is used as a base point, and is bent vertically downward on the surface of the plate metal fitting 30. Bending part
At the same time as forming A, using each of the line segments c and d as a base point,
The arc-shaped notch is projected vertically above the flat metal fitting 30 to form the claw-shaped projection 10 (FIG. 3 (2)). Then
A line connecting a notch provided along both side edges at a predetermined position from one end of the metal plate 30 in the longitudinal direction is set as a base point (indicated by a dashed line a in the figure), and is vertically lower than the surface of the metal plate 30. To form a bent portion B to form the vertical side frames 13a and 13b of the connecting frame 5. Next, a line connecting notches provided along both side edges of a fixed position (a position having the same length as the fixed position from the one end) from the other end in the longitudinal direction of the metal plate 30. With the portion as a base point (dashed line b in the figure), the metal plate 30 is bent vertically downward to form a bent portion C, and the vertical side frames 14a and 14b of the crossover frame 31 are formed. An upper flat surface provided with the claw-like projections 12 on the crossover frame 31 includes a support surface 21 and a side plate 22.
Are formed. Below the outer surfaces of both side plates 22,
One side of the hexagon nut 11 is welded to the side plate 22 so that the male screw of the bolt can be screwed in the vertical direction to form the support member 5. It is preferable to provide a window through the side plate 22 so that the screw 15 can easily rotate.

Although the number of the claw projections 12 is not particularly limited, it is preferable to provide two to six claw projections along both longitudinal edges of the support surface 21 of the form receiving member 2. The size of the support surface 21 may be shorter or longer than the form receiving member 2, but it is necessary that the width is the same or slightly larger. Further, a screw hole may be provided in the support surface 21 for screwing the form receiving member 2, and the form receiving member 2 may be fixed to the support member 5 by screwing.

As shown in FIG. 4, the support leg 6 is bent vertically upward at a predetermined position (indicated by a dashed line e in FIG. 4) of a metal flat metal plate 32 having a substantially quadrangular shape. None, furthermore, a portion on the horizontal end side from the bent portion E is formed as the grounding plate 10, while a portion on the vertical end side is formed as the connecting plate 17, and both sides of the connecting plate 17 are formed on both side edges. (Indicated by an alternate long and short dash line f in the figure) to form a bent portion F, and form a mold frame 33 by using the portions closer to the ends than the both bent portions F as the connection frames 18a and 18b. did. Next, a screw 15 was rotatably attached to a predetermined position of the ground plate 10. The screw 15 is a male screw as a whole, and has a head having a cross-shaped groove 19 for turning by a driver or the like at the upper end. The other end of the screw 15 was inserted into a through hole 23 formed in the ground plate 10, and was fixed by caulking from the back side of the ground plate 10. The screw 15 itself can be freely rotated, but was attached so as not to come off from the ground plate 10. In addition, one window was formed (punched) in the connecting plate 17 so that concrete entered the quadrangular hole 24, that is, the gap where the support leg 6 and the support member 5 overlap.

The assembling of the form supporting bracket 1 is performed such that the vertical side frames 13a, 13b and 14a, 14b of the connecting frame 31 overlap the vertical side frames 18a, 18 of the two support legs 6, respectively. Screws 1 for the individual support legs 6a, 6b
5 is screwed from below the hexagonal nut 11 of the connecting frame 31 and joined to each other. A screw head is screwed on the upper end of the screw 15, and two supporting legs 6 a and 6 b are attached to the connecting frame 31. Were integrated to obtain a mold support 1 shown in FIG.

A method of constructing a foundation for a house or the like using the above-described formwork fitting 1 will be specifically described step by step. (1) First, a hole for laying a foundation (solid foundation) on the ground is excavated. The ground is compacted with a rammer or the like from the floor of the excavated hole. (2) Next, as shown in FIG. 5 and FIG. 6, the split stone 40 is spread on the floor. (3) Then, if necessary, a moisture-proof layer (not shown) is formed on the split stone 40, and discarded concrete (not shown) is poured from above the moisture-proof layer.

(4) Using the form support 1 shown in FIG. 2, the screw 15 of the form support 1 is turned according to the height of the footing portion 45 of the foundation, and the support legs 6a and 6b are expanded and contracted. To adjust the height of the holding member 3. At this time, the heights of the support legs 6a and 6b are adjusted so that the upper surface of the holding member 3 is horizontal and at the same height as the upper surface of the footing portion.

(5) Reinforcing rods 41 are assembled on discarded concrete or split stone 40 or the like in accordance with the floor plan of the foundation, and the holding member 3 is directly placed at a predetermined position on the base between the reinforcing rods 41. In this case, even if there are irregularities on the base, the height of the holding member 3 can be kept constant by adjusting the height of the two support legs 6a and 6b independently of each other. When the height of the holding member 3 is fixed, the form receiving member 2 is placed on the holding member 3.

(6) Next, the lower end of the mold 42 is attached to the inner mold holding plate 8a and the end of the mold holding plate 2a and 2b of the mold receiving member 2 of the mold supporting metal fitting 1 respectively. 7a or the inner side frame holding plate 8b and the end side frame holding plate 7b are inserted and fixed so as to be sandwiched between them, and the upper end of the mold 42 is fixed using a width stopper 43 or the like. The frame 42 is assembled. In this case, anchor bolts 44 are provided between the molds 42. By doing so, it is supported on the upper surface of the form receiving member 2,
It is kept at a certain height. If the formwork 42 is not vertical, the form receiving member 2 is shifted to one of the longitudinal directions and adjusted so as to be kept vertical.

(7) The footing portion 45 of the housing foundation is cast in concrete, and then the rising portion 46 of the housing foundation in which the formwork 42 is assembled is cast in concrete, cured and hardened. When removed, a hardened housing foundation is formed integrally with the footing. At that time, the mold supporting metal 1 is buried in the concrete of the footing portion except for the inner mold pressing plates 8a and 8b and the end-side mold pressing plates 7a and 7b.

The formwork bracket 1 of the present invention can be applied not only to the solid foundation of the house described above but also to the formation of an independent foundation, a cloth foundation, a pile foundation and the like.

[0029]

According to the invention of the present application, the formwork for rising the foundation of the house can be assembled before the footing portion is cast, so that concrete can be cast in a short time. Therefore, the work efficiency is excellent. In addition, since all concrete can be cast in the rising portion, the footing portion and the slab of the foundation at the same time, there is no difference in partial strength and a foundation having excellent strength can be formed.

Further, since the height can be adjusted by the support legs, the height of the footing portion and the slab of the foundation can be adjusted, and even if the plane of the foundation is slightly uneven,
The formwork can be easily adjusted to a certain height.

Further, since the mold supporting member of the present invention is configured so that the mold receiving member is separated from the holding member, it is necessary to fix the position of the mold supporting member when assembling the foundation. In the case where the mold is shifted to the left or right, the mold receiving member is moved to adjust the position of the mold so that the mold can be kept vertical. By doing so, the foundation after the concrete is cast can also be kept vertical, and the effect of obtaining an accurate foundation can be obtained.

According to the mold support of the present invention, both the mold receiving member and the holding member are obtained by assembling a press-formed mold support from a metal plate, and the production is easy and mass production is possible. Thus, the disposable formwork bracket can be supplied at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a mold supporting bracket of the present invention.

FIG. 2 is a perspective view showing another example of the formwork support of the present invention.

FIG. 3 is an explanatory diagram for explaining an example of a method of forming a bridging frame that constitutes the form support metal fitting of the present invention.

FIG. 4 is an explanatory diagram for describing an example of a method of forming a support leg constituting the formwork support bracket of the present invention.

FIG. 5 is an explanatory view showing an embodiment in which the formwork support of the present invention is applied to a solid foundation structure of a house.

FIG. 6 is a longitudinal sectional view taken along line XY of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Form support bracket 2 Form receiving member 3 Holding member 4 Pedestal 5 Support member 6 Support leg 6a, 6b Support leg 7a, 7b Form holding plate 8a, 8b at end side Form holding plate 9 inside 9 legs Member 9a, 9b Leg member 10 Ground plate 10a, 10b Ground plate 12 Claw-shaped protrusion

Claims (3)

[Claims] 1. A height adjustment by connecting a mold receiving member for holding lower ends of two molds at a predetermined interval and a supporting member provided with a pedestal for mounting the mold receiving members. A holding member provided with a support leg formed so as to be capable of being formed. 2. The mold supporting bracket according to claim 1, wherein the supporting member is provided with a claw-shaped projection instead of the pedestal. 3. The formwork support bracket according to claim 1, wherein a plurality of support legs are provided, each of which is independently adjustable in height.