JP2639399B2 - Precast concrete member production formwork - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast concrete member manufacturing form for manufacturing a precast concrete member having a precast buried member in which a part of a suspension member, a streak, or the like is exposed.

[0002]

2. Description of the Related Art In a precast reinforced concrete structure, for example, for each structural element such as a wall, a column, a beam, and a floor plate,
It is precast and assembled on site. Precast concrete members such as walls, columns, beams and floorboards are provided with a precast buried member in which a part of a suspension member, a streak, or the like is exposed. For example, a precast concrete member having a suspending member is hooked or the like on the suspending member, lifted and moved by a crane, and assembled with the precast concrete members to construct a reinforced concrete structure.

[0003] This precast concrete member is manufactured in a formwork. In order to provide a suspension member to the precast concrete member, a cotter for holding the suspension member is provided in the formwork. The precast concrete member is manufactured by casting.

[0004]

As described above, a precast concrete member having a suspending member is produced by using the formwork for producing a precast concrete member. The cotter is similarly fixed by welding or the like to a formwork made by laminating steel plates.

[0005] Incidentally, a plurality of steel plates are required to form a precast concrete member forming form entirely of steel and to form a cotter into a box shape by laminating steel plates. Further, since the bonding is performed by welding, it is troublesome, troublesome, and costly.

Further, when the mold is removed from the mold, it is difficult to remove the mold, particularly because the cotter is formed in a box shape by bonding steel plates.
For this reason, the mold is released from the mold by hitting it with a hammer or the like, and it takes time and effort to remove the mold, and the form may be deformed or damaged by hitting with the hammer or the like.

Further, since the mold is removed by hitting the mold, there is a problem that the precast concrete member is chipped and the quality of the precast concrete member is reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a precast concrete member forming form which can be easily removed, has improved durability, and improves the quality of the precast concrete member. The purpose is.

[0009]

According to a first aspect of the present invention, there is provided a precast concrete member forming form, comprising: a rubber cotter for holding a precast buried member; A steel plate to be attached to a frame is integrally formed by joining the rubber cotter to one side surface of the steel plate, and the steel plate is fixed to the steel formwork by welding, and the precast embedded by the rubber cotter. The present invention is characterized in that the member is retained and retained by a retaining member, and the concrete is poured while being retained, and a precast concrete member having a precast embedded member whose part is exposed is manufactured.

According to a second aspect of the present invention, there is provided a precast concrete member forming form, wherein the rubber cotter for holding the precast buried member includes a fixed cotter portion and a holding cotter portion.
The fixed cotter portion, and a steel plate for attaching the fixed cotter portion to a steel formwork are integrally formed by joining the fixed cotter portion to one side surface of the steel plate. A precast concrete member having a precast buried member which is fixed to a mold frame by a fastening means, holds the precast buried member at the fixed cotter portion and the holding cotter portion, and casts concrete, and partially exposes the precast buried member. It is characterized by having been constituted so that.

According to a third aspect of the present invention, there is provided a precast concrete member forming form, comprising: a rubber cotter for holding a precast buried member; and a steel plate for attaching the rubber cotter to the steel form. The rubber cotter is joined and integrally formed, the steel plate is fixed to the steel formwork by welding, the precast buried member is inserted and held in the rubber cotter, and concrete is poured. The present invention is characterized in that a precast concrete member having a precast embedded member whose portion is exposed is manufactured.

[0012]

According to the first aspect of the present invention, a precast concrete member having a precast embedded member in which a precast embedded member is retained and retained by a rubber cotter of a precast concrete member production form by a retaining member, and a part of the precast embedded member is exposed. To produce

The rubber cotter is formed integrally with the steel plate, and by fixing the steel plate to the steel formwork, the rubber cotter can be securely fixed to the steel formwork. Further, the precast buried member can be securely retained on the rubber cotter by being prevented from coming off by the stopper member.

In addition, by using a rubber cotter for the precast concrete member forming mold, the rubber cotter is deformed when the mold is removed, so that the mold can be easily removed. Also,
Since the mold can be removed without hitting it with a hammer or the like, the mold is not deformed or damaged, and the durability is improved.

Further, since the mold can be removed without hitting the formwork with a hammer or the like, the precast concrete member is not chipped or the like, and the quality of the precast concrete member having the precast embedded member whose part is exposed is improved.

According to the second aspect of the present invention, the rubber cotter for holding the precast buried member is composed of two members, a fixed cotter portion and a holding cotter portion. Then, the steel sheet is fixed to a steel form by a fastening means. Then, the precast embedded member is held by the fixed cotter portion and the holding cotter portion, and a precast concrete member having the precast embedded member that is partially exposed is manufactured.

The fixed cotter portion of the rubber cotter is formed integrally with the steel plate, and the steel plate is fixed to the steel formwork by fastening means, and the fixed cotter portion holds the precast embedded member by the holding cotter portion. The rubber cotter can be securely fixed to the steel formwork. Further, the precast buried member can be securely held by the rubber cotter including the fixed cotter and the holding cotter. Furthermore, since the rubber cotter is deformed when the mold is removed, it is easy to remove the mold, and the mold can be removed without hitting it with a hammer or the like. The performance is improved. Also, since the mold can be removed without hitting it with a hammer, etc.,
The precast concrete member is free from chipping and the like, and the quality of the precast concrete member is improved.

According to the third aspect of the present invention, the precast buried member is inserted into and held by the rubber cotter of the precast concrete member production form, and a precast concrete member having the precast buried member partially exposed is manufactured.

The rubber cotter is formed integrally with the steel plate. By fixing the steel plate to the steel mold, the rubber cotter can be securely fixed to the steel mold. In addition, the precast buried member can be inserted into the rubber cotter and securely held. Furthermore, since the rubber cotter is deformed when the mold is removed, it is easy to remove the mold, and the mold can be removed without hitting it with a hammer or the like. The performance is improved. In addition, since the mold can be removed without hitting with a hammer or the like, the precast concrete member is not chipped or the like, and the quality of the precast concrete member is improved.

[0020]

Next, an embodiment of the precast concrete member forming formwork of the present invention will be described. 1 to 5 show a first embodiment of a precast concrete member forming form, FIG. 1 is a perspective view of a precast concrete member forming form, FIG. 2 is a front view of a partial form, and FIG. 3 is III in FIG.ー III
FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;
FIG. 5 is a plan view of the steel plate.

Precast concrete member forming form 1
, The suspension hook 2 which is the precast embedded member A
And a steel plate 6 for attaching the rubber cotter 4 to a steel form 5 are formed integrally with each other.
Is fixed to the steel mold 5 by welding.

The rubber cotter 4 is formed of synthetic rubber, and the holding portion 3 of the rubber cotter 4 has a hole into which the hanging hook 2 can be inserted. Further, a pin hole 7 is formed in the upper part of the rubber cotter 4 so as to communicate with the holding portion 3, and the slip prevention pin 8 is inserted into the pin hole 7 and the hanging hook inserted into the holding portion 3. 2 does not fall out.

Three anchor bolts 9 are screwed onto the steel plate 6. Synthetic rubber is poured into the cotter manufacturing form 1 so that the anchor bolts 9 of the steel plate 6 are buried, and the rubber cotter 4 and the steel plate 6 are screwed. Are integrally formed, and a rubber cotter 4 is formed.
And the steel plate 6 are integrated so as not to peel off.

In the precast concrete member forming form 1 thus constructed, the hanging hook 2 is inserted into the holding portion 3 of the rubber cotter 4, and the slip preventing pin 8 is inserted into the pin hole 7.
To prevent the hanging hook 2 inserted in the holding portion 3 from coming off. A filler 10 is packed in the holding portion 3 inside the hanging hook 2 so that concrete does not enter, and concrete is poured in. The hanging hook 2 partially exposed by the precast concrete member forming form 1 is provided.
To produce a precast concrete member having

In the precast concrete member manufacturing form 1, the rubber cotter 4 is integrated with the steel plate 6 to form a partial form B, and the partial form B is formed by welding the steel plate 6 to the steel form 5. , The rubber cotter 4 can be easily attached to the steel formwork 5, and a structure for holding the hanging hooks 2 on the steel formwork 5 is easily created.

Further, since the rubber cotter 4 is used as the precast concrete member forming mold 1 and the rubber cotter 4 is elastically deformed when the mold is removed, the mold can be easily removed. Further, since the mold can be removed without hitting the hammer or the like, the precast concrete member is not chipped and the quality of the precast concrete member is improved.

Further, since the mold can be removed without hitting the mold with a hammer or the like, the steel mold 5 is not deformed or damaged, and the durability of the precast concrete member production mold 1 is improved.

FIGS. 6 to 12 show a second embodiment of a precast concrete member forming form, FIG. 6 is a perspective view of a precast concrete member forming form, FIG. 7 is a perspective view of a partial form, and FIG. 9 is a front view of the partial mold, FIG. 10 is a plan view of the partial mold, FIG. 10 is a side view of the partial mold, and FIG.
FIG. 12 is a cross-sectional view taken along the line XI, and FIG.

Formwork 1 for producing precast concrete members
1, a rubber cotter 14 having a holding portion 13 for holding a suspension wire 12 which is a precast embedded member A;
A partial form B is formed integrally with a steel plate 16 for attaching the rubber cotter 14 to a steel form 15. The partial form B is fixed to the steel form 15 via the steel plate 16 with bolts 24. Have been. The rubber cotter 14 is a fixed cotter 17
, And a holding cotter portion 18, each of which is formed of synthetic rubber.

An anchor bolt 19 is screwed onto the steel plate 16, and an anchor plate 20 is inserted through the anchor bolt 19. Further, a nut 22 is welded to the steel plate 16 corresponding to the assembly screw hole 21, and a mounting screw hole 23 is formed. Synthetic rubber was poured into the cotter mold so that the anchor bolts 19, anchor plates 20, and nuts 22 of the steel plate 16 were buried, so that the fixed cotter portion 17 and the steel plate 16 were integrally formed. Are not peeled off.

The fixed cotter section 17 is fixed to the steel form 15 by applying it to the steel form 15 by inserting the mounting bolt 24 through the mounting screw hole 23 of the steel plate 16 and tightening the nut.

A concave portion 18a is formed in the holding cotter portion 18, and the convex portion 1 of the fixed cotter portion 17 is formed in the concave portion 18a.
7a and the steel plate 16 are engaged. Also,
On both sides of the concave portion 18a of the holding cotter portion 18, a groove 18b is formed on a surface that contacts the fixed cotter portion 17, and this groove 18b is formed.
Constitute the holding unit 13. Further, the holding cotter unit 1
A bolt hole 25 is formed through a portion of the nut 8 facing the concave portion 18a, and an assembly bolt 26 is inserted into the bolt hole 25 and screwed to the nut 22.

Accordingly, the hanging wire 12 is held in the groove 18b of the holding cotter 18 and is assembled from above to the fixed cotter 17, and in this assembled state, the assembling bolt 26 is inserted into the bolt hole 25 of the holding cotter 18. , Is screwed to the nut 22 of the steel plate 16 and the holding cotter 18 is fixed to the fixed cotter 17.
Assemble to. By attaching the holding cotter section 18 to the fixed cotter section 17 in this manner, the suspension wire 12 is held by the rubber cotter 14.

In the precast concrete member manufacturing form 11 constructed as described above, the suspension wire 12 is securely and securely held by the holding portion 13 of the rubber cotter 14 composed of the fixed cotter portion 17 and the holding cotter portion 18. It is easily retained. Then, concrete is poured into the precast concrete member production form 11 to produce a precast concrete member having a suspension wire 12 partially exposed.

FIGS. 13 to 18 show a third embodiment of a precast concrete member forming form, FIG. 13 is a perspective view of a precast concrete member forming form, FIG. 14 is a front view of a partial form, and FIG. 14 is a sectional view taken along the line XV-XV, FIG. 16 is a sectional view taken along the line XVI-XVI in FIG.
Is a plan view of the steel plate, and FIG. 18 is a side view of the steel plate.

Precast concrete member forming form 3
In FIG. 1, a stud 32 which is a precast embedded member A
Rubber cotter 34 having a holding portion 33 for holding the steel plate 3
6 is formed, and the partial form B is fixed by welding a steel plate 36 to the steel form 35. The holding portion 33 for holding the streak 32 is formed by an insertion hole 37.

Four anchor bolts 38 are screwed into the steel plate 36 and two positioning holes 39 are formed. Pour synthetic rubber into a cotter manufacturing mold so that the anchor bolts 38 of the steel plate 36 are buried, and the rubber cotter 3
4 and the steel plate 36 are formed integrally so that the rubber cotter 34 and the steel plate 36 are not separated.

The precast concrete member forming form 31 thus configured is securely and easily held by inserting the reinforcing bar 32 into the insertion hole 37 forming the holding portion 33 of the rubber cotter 34. . Then, concrete is poured into the precast concrete member forming form 31 to manufacture a precast concrete member having a bar 32 whose part is exposed.

[0039]

As described above, according to the first aspect of the present invention, the rubber cotter is formed integrally with the steel plate, and the steel cotter is fixed to the steel formwork, so that the rubber cotter is securely formed of steel. Can be fixed to the mold. Further, the precast buried member can be securely retained on the rubber cotter by being prevented from coming off by the stopper member. In addition, since the rubber cotter is deformed when the mold is removed, it is easy to remove the mold, and the mold can be removed without hitting it with a hammer or the like. The performance is improved. Furthermore, since the mold can be removed without hitting with a hammer or the like, the precast concrete member is not chipped or the like, and the quality of the precast concrete member is improved.

According to a second aspect of the present invention, a fixed cotter portion of a rubber cotter is formed integrally with a steel plate, and the steel plate is fixed to a steel mold by fastening means, and the fixed cotter portion holds the precast embedded member. By holding the rubber cotter by the cotter portion, the rubber cotter can be securely fixed to the steel formwork. Further, the precast buried member can be securely held by the rubber cotter including the fixed cotter and the holding cotter. Furthermore, since the rubber cotter is deformed when the mold is removed, it is easy to remove the mold, and the mold can be removed without hitting it with a hammer or the like. The performance is improved. In addition, since the mold can be removed without hitting with a hammer or the like, the precast concrete member is not chipped and the quality of the precast concrete member is improved.

According to the third aspect of the present invention, the rubber cotter is formed integrally with the steel plate, and by fixing this steel plate to the steel mold, the rubber cotter can be securely fixed to the steel mold. Further, the precast buried member can be reliably inserted into the rubber cotter. Furthermore, since the rubber cotter is deformed when the mold is removed, it is easy to remove the mold, and the mold can be removed without hitting it with a hammer or the like. The performance is improved. In addition, since the mold can be removed without hitting with a hammer or the like, the precast concrete member is not chipped and the quality of the precast concrete member is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a precast concrete member production formwork.

FIG. 2 is a front view of a partial formwork.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 is a plan view of a steel plate.

FIG. 6 is a perspective view of a precast concrete member production formwork.

FIG. 7 is a perspective view of a partial mold.

FIG. 8 is a front view of a partial formwork.

FIG. 9 is a plan view of a partial mold.

FIG. 10 is a side view of a partial mold.

FIG. 11 is a sectional view taken along the line XI-XI in FIG. 8;

FIG. 12 is a plan view of a steel plate.

FIG. 13 is a perspective view of a precast concrete member production formwork.

FIG. 14 is a front view of a partial formwork.

FIG. 15 is a sectional view taken along the line XV-XV in FIG. 14;

16 is a sectional view taken along the line XVI-XVI in FIG.

FIG. 17 is a plan view of a steel plate.

FIG. 18 is a side view of a steel plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Precast concrete member production formwork 3 Holding part 4 Rubber cotter 5 Steel formwork 6 Steel plate A Precast buried member B Partial formwork

Claims (3)

(57) [Claims] 1. A rubber cotter for holding a precast buried member and a steel plate for attaching the rubber cotter to a steel formwork are integrally formed by joining the rubber cotter to one side surface of the steel plate. This steel plate is fixed to the steel formwork by welding, the precast buried member is held by the rubber cotter, and the retaining member is retained and retained by the retaining member, and concrete is poured, and a part is exposed. A precast concrete member production formwork configured to produce a precast concrete member having a precast embedded member. 2. A rubber cotter for holding a precast buried member comprises two members, a fixed cotter portion and a holding cotter portion. The fixed cotter portion and a steel plate for attaching the fixed cotter portion to a steel mold are provided. The fixed cotter portion is joined to one side surface of the steel plate to be integrally formed, and the steel plate is fixed to the steel formwork by a fastening means, and the precast is performed by the fixed cotter portion and the holding cotter portion. A precast concrete member forming form characterized by holding a buried member, casting concrete, and manufacturing a precast concrete member having a precast buried member partially exposed. 3. A rubber cotter for holding a precast buried member, and a steel plate for attaching the rubber cotter to a steel formwork are integrally formed by joining the rubber cotter to one side surface of the steel plate. This steel sheet is fixed to the steel formwork by welding, the precast buried member is inserted and held in the rubber cotter, concrete is poured, and a precast concrete member having a partially exposed precast buried member is provided. A precast concrete member production formwork characterized in that it is configured to be produced.