JPH1162229A - Separator coupling for concrete form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concrete form component part which enables constructing a concrete form even without a cone. SOLUTION: A separator coupling is composed of a shaft body 10', a threaded hole opening at one end of the shaft body 10', a wedge inserting hole 12 bored at the other end of the shaft body 10', and a rotational operating part 10c for a rotary tool formed in the shaft body 10'. A pair of such shaft bodies 10' are coupled coaxially at the two ends of a separator 66 installed between concrete forms 58 and fixed to the specified positions on the left and right reinforcing members 16 so that the spacing of the left and right reinforcing members 16 is decided. Thereby the spacing between form plates 58 contacting the left and right reinforcing members 16 through crosspieces 60 is decided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separator connecting device used for a concrete formwork for forming a concrete wall.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional concrete form has a separator (22) having cones (18) and (20) attached to both ends thereof, which is disposed between form plates (24) and (26). Bolts (30) (3) integrated with cones (18) (20) through holes (28) provided in formwork plates (24) (26)
2) is projected from the outer surfaces of the form plates (24) and (26), and form ties (34) and (3) are attached to the bolts (30) and (32).
6) The screw holes (38) and (40) are screwed and connected, and the reinforcing material (44) is formed along the outer surfaces of the crosspieces (42) and (42) of the form plates (24) and (26). (34)
The abutment bodies (46) and (48) inserted into (36) are tightened with nuts (50), and the form plates (24) and (26) are attached to the outer surface via the crosspieces (42) and (42) and the reinforcing material (44). The separator is pressed from the side to hold the facing form plates (24) and (26) at the distance between the cones (18) and (20) at both ends of the separator (22).

[0003]

The above-mentioned conventional concrete form has a structure in which a cone is buried in concrete.
There was a problem that a large amount of cones had to be prepared and the cost was high. An object of the present invention is to solve the above problems.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an axial body (10 ') (74a) and one of the axial bodies (10') (74a) which is axially drilled. Screw holes (10
b) (74b) and wedge insertion holes (12) (88) drilled in the other of the shaft bodies (10 ') (74a).
And a rotary operation part (10c) (74d) for a rotary tool formed on the shaft body (10 ') (74a), and a predetermined range from one end of the shaft body (10') (74a) to the vicinity thereof. A gentle taper surface (10
a) (74c) and the tapered surfaces (10a) (74c).
c), one side of the shaft body (10 ') (74a) is tapered, formed coaxially with the screw holes (10b) (74b), and is formed coaxially with the shaft body (10') (7).
4a) and the screw hole (10b)
Guide hole (10d) formed larger in diameter than (74b)
(74e).

[0005]

A pair of shaft bodies (1) are provided at both ends of the separator (66).
0 ′) and (74a) are coaxially connected to each other to form a pair of shaft bodies (1).
0 ′) and (74a) are locked at the fixed positions of the corresponding left and right reinforcing members (16) and (70), so that the distance between the left and right reinforcing members (16) and (70) is determined.
The spacing between the form plates (58) that contact the left and right reinforcing members (16) and (70) via the crosspiece (60) is determined to form a concrete form. The coupling between the separator (66) and the shaft body (10 ') (74a) is performed by the shaft body (10') (7
This is performed by screwing the threaded portion at one end of the separator (66) into the threaded holes (10b) (74b) at one end of 4a). Shaft body (10 ') at one end of separator (66)
When screwing the screw holes (10b) and (74b) of (74a), one end of the separator (66) can be easily screwed into the screw holes (10b) and (74b) by the guide holes (10d) and (74e).
Can face each other.

The fixing between the shaft body (10 ') (74a) and the reinforcing members (16) (70) is performed by the reinforcing members (16) (7).
Hole (8a) of locking body (2) (72) fixed to 0)
(8b) (82) (84) and shaft body (10 ') (74)
Align the other holes (12a) (12b) (88) of (a) and these holes (8b) (82) (84) (12a)
(12b) This is performed by inserting wedges (6) and (80) into (88). Various configurations can be used for fixing the locking members (2) (72) having wedge holes formed in the reinforcing members (16) (70), and the configuration is not limited to a specific configuration. . By locking the shaft body (10 ') (74a) to the locking members (2) (72) with the wedges (6) (80), the space between the left and right reinforcing members (16) (70) and the form plate ( 58) are determined, and it is possible to construct the formwork without using a cone.

[0007]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In FIG.
(2) is a pipe-shaped foam tie (locking body), which is formed with a locking flange (2a) of an appropriate shape at one end and a screw (4) for a nut (4) on the other outer circumference. (2
b) is formed. At predetermined positions near the other end of the form tie (2), slots (8a) and (8b) for penetrating and fitting the wedge (6) at right angles are formed. At the one end opening of the foam tie (2), a squeezed portion (2c) formed of a ring-shaped projection for stopping concrete is formed. (10) is a separator connector that can be slidably inserted into the hollow portion of the foam tie (2), and has a tapered portion (10a) formed at one end of the shaft body (10 '). The screw hole (10b) is formed in the inside diameter part of ()).

At predetermined positions near the other end of the shaft main body (10 '), holes (12a) and (12b) for penetrating the wedge (6) at right angles to each other are formed. At the other end of the shaft main body (10 '), there is provided a rotation operating section (10
c) is formed. (14) is an abutting body, which has a curved portion (14b) for receiving a reinforcing material (16) such as a steel pipe on both side walls (14a), and a foam tie (2) is slidable at a central portion. A hole (52) is provided for insertion into the device. (54) is an aggregate made of a square material, in which a plurality of lateral holes (56) are formed. Reference numeral (56) denotes a form plate on which a plurality of vertical crosspieces (60) are fixed at substantially equal intervals. (66) is a separator, which has thread portions at both ends.

Next, a method of assembling and building a concrete formwork will be described. First, a plurality of aggregates (54) and reinforcing materials (16) arranged in parallel are connected in advance as shown in FIG. 2 to form a skeleton. In this connection, as shown in FIG. 3, a foam tie (2) is inserted into a hole (56) of each aggregate (54), and reinforcing materials are provided on both sides of the foam tie (2) at predetermined positions of the aggregate (54). (16) are arranged at right angles two by two. Next, the hole (52) of the contact body (14) is inserted into the form tie (2), and the curved portion (14) of the side wall portion (14a) is inserted.
b) is applied to the two reinforcements (16) and the nut (4) is screwed into the threaded portion (2b) of the foam tie (2) to complete the skeleton. 3 and 4 show a skeleton (62) on one side.

After assembling the skeleton (62) on one side, the skeleton on the other side is also assembled simultaneously as described above. Next, the skeleton (62) on one side and the skeleton (6
4) Stand up and face in parallel. Next, the ends of the separator connector (10) are screwed into both ends of the separator (66) and coaxially connected to each other, and inserted through the hollow portion of the foam tie (2) of one of the skeletons (62). Then, the two skeletons (62) and (64) are inserted and arranged in the hollow portions of the corresponding foam ties (2). Next, one form tie (2)
Holes (8a) (8b) and holes (12a) (12b) of the separator connector (10), and the wedge (6)
Press-fit.

Next, a wedge (6) is driven into the slot (8) of the other foam tie (2) and the hole (12) of the separator connector (10). This accurately determines the dimensions between one and the other skeleton (62) (64). Next, the form plate (58) is inserted between the adjacent aggregates (54) at intervals from above the skeletons (62) and (64), and the crosspiece (6) is inserted.
0) is brought into contact with the corresponding reinforcement (16). Next, a nail (64) is driven into the crosspiece (60) to form a formwork (58).
To the aggregate (5) of the corresponding skeleton (62) (64), respectively.
Temporarily fix to 4). The assembling of the formwork is completed as described above, and concrete (68) is driven between the formwork plates (58) supported by both skeletons (62) and (64) to construct a concrete wall.

Next, the operation of dismantling the formwork after constructing the concrete wall will be described. First, the wedge (6) is removed, and the separator coupler (10) is rotated using a wrench to separate the separator coupler (10) from the separator (66) in the concrete (66). ) Is pulled out from the foam tie (2). Next, the nail (64) is pulled out, the temporary fixing of the form plate (58) is released, and the form plate 58 is pulled up to complete the dismantling of the form. The skeletons (62) and (64) are used as they are for the next assembling operation. Also, the formwork plate (58) and the separator connecting device (10) can be used as they are for the next assembling operation.

The method of assembling the mold is not particularly limited to the above-described embodiment, and the following method may be employed. After assembling the skeletons (62) and (64), a form plate (58) is placed between the aggregates (54) of the skeleton (62),
The form plate (58) is temporarily fixed to the bone plate (54) by the nail (64). Similarly for the skeleton (64), the aggregate (54)
The formwork panel (58) is placed between them and temporarily fixed to the aggregate (54). Further, the separator connector (10) is inserted and arranged in the form tie (2) of each skeleton (62) (64). In this state, first, the skeleton (6
2), and the separator connector (1) on the skeleton (62) side is set.
One end of the separator (66) is screwed into the end of the separator (0), and one end of the separator (66) is connected to the end of the separator connector (10) on the skeleton (62) side. Next, the holes (12a) and (12b) of the separator connector (10) are aligned with the holes (8a) and (8b) of the form tie (2), and the wedge 6 is inserted into the holes.

In this case, the wedge (6) and the hole (12)
a) A play may be formed between (12b) and (8a) (8b). The play between the wedge (6) and the holes (8a) (8b) is removed by a nut (not shown) screwed to the screw (2b) of the foam tie (2). If this nut is rotated and pressed against the wedge (6), the wedge (6) and the holes (8a) (8)
The play between b) is removed and the wedge (6) is fixed in place on the foam tie (2). Next, the skeleton (64) on the other side is set up and is opposed to the skeleton (62) in parallel. Next, the tip of the separator connector (10) on the side of the skeleton (64) is aligned with the other end of the separator (66), and the separator connector (10) is rotated so that the screw hole (10b) is inserted into the separator (66). Into the thread at the other end of the skeleton side (6
4) Connect the tip of the separator connecting tool (10) on the side to the other end of the separator (66).

Next, the holes (12a) and (12b) of the separator connector (10) on the skeleton (64) side are aligned with the corresponding holes (8a) and (8b) of the foam tie (2), and the wedges (6) are added thereto. ). In this case, as described above, the play between the wedge (6) and the holes (8a) (8b) of the form tie (2) may be removed by a separately provided nut. By the above operation, the interval between the left and right form plates (58) is accurately determined, and the concrete form is formed. The form tie (2) constitutes a locking member for locking the separator connector (10), and the locking member is connected via an aggregate (54), an abutment (14), and a nut (4). Although fixed to the reinforcement (16), this fixing means is not limited to a specific configuration. Another embodiment of the fixing means for fixing the locking body to the reinforcing member will be described below with reference to FIGS.

(70) is a flange (70a) (70a)
A reinforcing member composed of a C-shaped steel channel with a box, and a box-shaped stopper (72) is fixed to a side surface of the reinforcing member by welding. Holes (76) and (78) for inserting the separator connector (74) are formed coaxially on the side walls of the reinforcing member (70) and the locking body (72). Holes (82) and (84) for wedges (80) on the upper and lower walls
Are drilled. In the above-described configuration, a pair of separator connectors (74) is connected coaxially to both ends of the separator (66). The pair of separator connectors (74) to which the separator (66) is connected are respectively inserted into the holes (8) of the corresponding left and right form plates (58) (the other is not shown).
6) and penetrate the corresponding reinforcements (70) and holes (76) (78) of the locking body (72). Next, the hole (82) of the locking body (72) and the separator connector (74)
Holes (88), press fit wedges (80) into holes (82) and (88), and fix separator connector (74) to locking body (72).

Thus, the interval between the left and right reinforcing members (70) (the other is not shown) is determined. Next, form plate (5
8) is brought into contact with the corresponding reinforcing member (70) via the pier (60), and the pier (60) is screwed to the reinforcing material (7).
Temporarily fix to the flange (70a) of 0). This allows
The spacing between the left and right formwork plates (58) is accurately determined and a concrete formwork is constructed. The structure of the separator connector (74) shown in FIG. 7 is substantially the same as that shown in FIG.
A screw hole (74b) and a tapered surface (7
4c), a wedge hole (88), and a rotation operation part (74d). When the concrete form is dismantled, the wedge (80) is removed, and the separator coupler (74) is rotated to separate the separator coupler (74) from the separator (66) embedded in the concrete. Thus, the concrete plate (5) is removed from the concrete wall between the form plates (58).
8) and the reinforcement (70) can be removed.

In the above embodiment, when connecting the separator couplers (10) (74) and the separator (66), the screw holes (10b) (74b) of the separator couplers (10) (74) are inserted into the separator coupler (10) (74). (66) It is not easy to insert the screw in accordance with the screw part. In order to facilitate this work, as shown in FIGS. 10 and 11, the shaft body (10 ') communicates with the screw holes (10b) (74b).
Screw hole (10b) so as to open at one end of (74a)
Guide hole (10d) (74e) larger in diameter than (74b)
May be formed. These guide holes (10
d) By providing (74e), the separator (6
At one end of 6), the screw hole (1) of the shaft body (10 ') (74a)
0b) When screwing in (74b), guide holes (10
d) By (74e), one end of the separator (66) can easily face the screw holes (10b) (74e).

[0019]

According to the present invention, as described above, one of the shaft main bodies can be fixed to the reinforcing member of the mold frame by wedges, and the other of the shaft main bodies can be connected to the separator by screwing. Thus, the concrete formwork can be constructed without any need, and the concrete formwork can be constructed at extremely low cost. Further, there is an effect that the other screw hole of the shaft main body can be easily adjusted to the screw portion of the separator.

[Brief description of the drawings]

FIG. 1 is a sectional view of a separator connector according to the present invention.

FIG. 2 is a plan sectional view of a concrete formwork.

FIG. 3 is a front view of a skeleton supporting a form plate.

FIG. 4 is a plan sectional view of a skeleton.

FIG. 5 is a sectional view of a contact body.

FIG. 6 is a plan sectional view showing another embodiment of the concrete formwork.

FIG. 7 is a side view of the separator connector.

FIG. 8 is an external view of a reinforcing member.

FIG. 9 is a longitudinal section of a prior art concrete formwork.

FIG. 10 is a step view showing another embodiment of the separator coupler.

FIG. 11 is a step view showing another embodiment of the separator connector.

[Explanation of symbols]

 2 Form tie (locking body) 2a Flange 2b Screw 2c Narrowing portion 4 Nut 6 Wedge 8a hole 8b hole 10 Separator connector 10 'Shaft main body 10a Tapered portion 10b Screw hole 10c Rotating operation portion 10d Guide hole 12a hole 12b hole 14 Contact Body 14a Side wall portion 14b Curved portion 16 Reinforcement material 18 Cone 20 Cone 22 Separator 24 Form plate 26 Form plate 28 Hole 30 Bolt 32 Bolt 34 Form tie 36 Form tie 38 Screw hole 40 Screw hole 42 Crosspiece 44 Reinforcement material 46 Contact body 48 Contact body 50 Nut 52 Hole 54 Aggregate 56 Side hole 58 Form plate 60 Crosspiece 62 Frame 64 Nail 66 Separator 68 Concrete 70 Reinforcement material 70a Flange 72 Locking member 74 Separator connector 74a Shaft main body 74b Screw hole 74c Tapered surface 74dRolling operation unit 74e guide hole 76 hole 78 hole 80 wedge 82 hole 84 hole 86 hole 88 hole

Claims (3)

[Claims] 1. A screw hole (10) for a threaded portion of a concrete form separator drilled axially in one of a shaft body (10 ') (74a) and one of the shaft bodies (10') (74a).
b) (74b) and wedge insertion holes (12) (88) drilled in the other of the shaft bodies (10 ') (74a).
And a rotary connector for a rotary tool (10c) (74d) formed on the shaft body (10 ') (74a). 2. An outer peripheral surface extending from one end of the shaft main body (10 ') (74a) to a predetermined range in the vicinity thereof is formed as a gently tapered surface (10a) (74c).
0a) and (74c), the shaft body (10 ′) (74)
2. The connector according to claim 1, wherein one side of a) is tapered. 3. The shaft body (10 ′) (74a) formed coaxially with the screw holes (10b) (74b).
Of the screw hole (10b) (74)
Guide holes (10d) (74) formed with a larger diameter than b)
The connector for a concrete formwork separator according to claim 1, characterized by comprising e).