JPH09151602A - Form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce at low cost and adopt to the specifications for each district by close-fitting protruded lines provided on wooden rails to dovetail grooves provided in a sheathing board so as to form a form and preparing multiple types of wooden rails different in height. SOLUTION: Multiple dovetail grooves 12a as the first wedge-shaped close-fit parts extending in longitudinal direction are formed on the surface of the sheathing board 12 of form which is made of a synthetic resin such as polyvinyl chloride and includes the sheathing board 12 and wooden rails 14 in the lateral direction of the sheathing board 12 and at specified intervals. Also protruded lines 14a as the second close-fit parts which extend in the longitudinal direction of the wooden rails and approximately in the same shape as the dovetail grooves 12a are formed on the entire surface of the wooden rails 14. Then the protruded lines 14a are fitted closely to the dovetail grooves 12a so as to mount the wooden rails 14 detachably on the sheathing board 12 and thus form the form. In this case, multiple types of wooden rails 14 different in height are prepared and used selectively according to their applications in order to adopt them to the specifications for each district.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork, and more particularly to a formwork used for placing concrete such as foundations and walls of buildings.

[0002]

2. Description of the Related Art A conventional dam plate of this type is disclosed in Japanese Patent Laid-Open No. 6-66.
No. 021. When the conventional dam plate 1 as shown in FIG. 9 is used, a splint is attached to the dam plate 1 to reinforce it and then used as a formwork. Further, the mold 2 disclosed in Japanese Patent Application No. 6-5045 shown in FIG. 10 is formed by extruding the dam plate 3 and the splint 4 integrally. In this case, it is possible to save the labor of attaching the spar 4 to the barrier plate 3 and reinforcing it.

[0003]

However, the height A of the pier 4 is traditionally 50 mm in the Kanto region and 60 mm in the Kansai region. Therefore, it is necessary to integrally mold and prepare the formwork 2 according to the required specifications of each place.
This is a cause of high costs. Therefore, the main object of the present invention is to be applied to various specifications at lower cost.
It is to provide a formwork.

[0004]

According to the present invention, in a formwork including a weir plate and a splint attached to the weir plate, the weir plate is provided with a first fitting portion, and the spigot is attachable to and detachable from the first fitting portion. It is a formwork characterized in that a second fitting portion for fitting to is provided.

[0005]

The first and second fitting portions are provided on the barrier plate and the pier. Then, by fitting the second fitting portion to the first fitting portion, the pier is detachably attached to the dam plate,
The formwork is formed.

[0006]

According to the present invention, since the splint is detachably attached to the dam plate to form the form, the splint applicable to the specifications of each place is prepared separately, and if necessary, the dam plate is formed. You can use it by attaching a pier to it. Therefore, it can be applied to the specifications of various places at a lower cost.

Further, since the pier and the dam plate can be separated,
The bulk during transportation can be reduced and the transportation cost can be reduced.
Further, since the weir plate whose first fitting portion and the like have been worn repeatedly due to repeated diversion can be finally used by being integrated with the concrete wall as a driving form, it is possible to solve the problem regarding disposal of waste materials. The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[0008]

EXAMPLE A formwork 10 of this example shown in FIGS. 1 and 2.
Is made of a synthetic resin such as polyvinyl chloride, and as shown in FIG. 3, the ridge 14a of the splint 14 is fitted into the dovetail groove 12a of the dam plate 12 to reinforce the dam plate 12. The barrier plate 12 is
As shown in FIG. 4, it includes two plates 16a and 16b each having a predetermined width and extending in the extrusion direction. Two plates 1
A plurality of ribs 18 extending in the longitudinal direction are formed between 6a and 16b so as to be inclined with respect to the main surfaces of the two plates 16a and 16b. Then, the ribs 18 are formed by the ribs 18.
The bending strength in the longitudinal direction and the width direction is sufficiently secured.

On the surface of the plate 16a, dovetail grooves 12a, which are first fitting portions having a wedge-shaped cross section, which extend in the longitudinal direction and whose width increases toward the plate 16b, are arranged at predetermined intervals in the width direction of the dam plate 12. A plurality is formed. Further, a convex portion 12b is formed at one end in the width direction of the barrier plate 12, and a concave portion 12c is formed at the other end so as to extend in the longitudinal direction. The barrier plate 12 has a width of 600 m.
m, length 1800mm, thickness 12mm, dovetail 12
The distance a is set to about 100 mm.

As shown in FIG. 5, the pier 14 is an elongated member formed in a prismatic shape, and the inside thereof is hollow. Inside the hollow, a plurality of (two in FIG. 5) ribs 14b formed to be inclined in a cross section are formed extending in the longitudinal direction. From the center of one surface (lower side in FIG. 5) of the pier 14, a ridge 14a, which is a second fitting portion and has substantially the same cross-sectional shape as the dovetail groove 12a, is formed toward the outside. The protrusion 14a is formed to extend in the longitudinal direction, and the inside thereof is hollow.

As for the size of the pier 14, the height B from the surface on which the ridges 14a are formed to the surfaces facing each other in parallel is traditionally 50 mm in the Kanto region and 60 mm in the Kansai region.
The width of the surface on which the protrusion 14a is formed is set to about 30 mm. When attaching the pier 14 to the weir plate 12,
The ends of the piers 14 are arranged at the respective dovetail grooves 12a at the longitudinal ends of the dam plate 12, the dovetail grooves 12a are made to correspond to the ridges 14a, and the piers 14 are slid to align the piers 14 with each other. It is attached to the barrier plate 12.

The formwork 1 thus formed
In the case of placing concrete on a wall of a building, 0 is fitted with a plurality of protrusions 12b of the barrier plate 12 in the recess 12c and arranged side by side, and the concrete is placed on the side of the plate 16b. It is diverted to another place. According to this embodiment, the pier 14 applicable to the specifications of each place is separately prepared, and the pier 14 can be attached to the weir plate 12 as needed, so that the weir plate 12 and the pier 14 can be integrated. It can be applied to various specifications at a lower cost than the case of molding. Moreover, since the dam plate 12 and the pier 14 can be separated,
The bulk of the weir plate 12 and the splint 14 when transported to the construction site can be made smaller than in the case where they are integrally molded, and the transport cost can be reduced.

Further, the required number of molds 10 are juxtaposed according to the width of the wall on which the concrete is placed.
Optimally cut the edges of the to match the edges of the wall. In this case, in the conventional form frame integrally molded with the dam plate and the pier, it is conceivable to cut the dam plate including the pier into waste material,
The pier can be wasted. However, in this embodiment, since the pier 14 can be separated from the barrier plate 12, the pier 14 is not wasted and the cost can be reduced.

Further, the weir plate 12 in which the dovetail groove 12a and the like have worn due to repeated diversion of the formwork 10 is made by placing concrete on the plate 16a side and injecting concrete into the dovetail groove 12a to firmly integrate it with the concrete. Since it can be used as a driving form, it can also solve the problems related to the processing of waste materials. Further, in the above-described embodiment (FIG. 1), all the dovetails 1 of the weir plate 12 are
Although the case where the pier 14 is attached to 2a is shown, it is not necessary to attach the pier 14 to all the dovetail grooves 12a.
If the required strength can be secured, for example, as shown in FIG. 6, the piers 14 may be intermittently attached and constructed.

Further, in the above-mentioned embodiment, the ridge 1 of the pier 14 is used.
4a is made to correspond to the dovetail groove 12a of the weir plate 12 and the case where the pier 14 is slid and attached to the weir plate 12 has been shown, but instead of the ridges 14a, the pier 14 as shown in FIG. 7 and FIG.
Forming intermittent projections 20 or 22 in the longitudinal direction, and forming a hole 16c in the surface of the plate 16a so as to correspond thereto, and inserting the pier 14 into the dam plate 12 perpendicularly to the surface of the plate 16a. You may attach it.

In the above-described embodiment, the case where the concave first fitting portion is formed on the dam plate 12 and the convex second fitting portion is formed on the splint 14 is shown. A convex first fitting portion may be formed on the plate 12 and a concave second fitting portion may be formed on the spar 14. In addition, in the above-mentioned Example, the barrier plate 12
Although the case where each of the piers 14 and the piers 14 is formed hollow by extrusion is shown, one or both of them may be formed of a foamed synthetic resin.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an illustrative view showing one embodiment of the present invention.

FIG. 3 is an illustrative view showing a state where a barrier plate and a pier are separated.

FIG. 4 is a perspective view showing a barrier plate.

FIG. 5 is a perspective view showing a pier.

FIG. 6 is a perspective view showing a modification of the embodiment shown in FIG.

FIG. 7 is an illustrative view showing a method of attaching the pier.

FIG. 8 is an illustrative view showing a method of attaching the pier.

FIG. 9 is a perspective view showing a conventional technique.

FIG. 10 is a perspective view showing a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Formwork 12 ... Weir board 12a ... Dovetail 14 ... Piete 14a ... Protrusions 14b, 18 ... Ribs 16a, 16b ... Plates 20,22 ... Protrusions

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masaki Kobayashi 1-543 Shitennoji, Tennoji-ku, Osaka Muramoto Construction Co., Ltd. Osaka Main Office (72) Inventor Nobuhiro Kawaguchi 1-5, Shitennoji, Tennoji-ku, Osaka No. 43 Muramoto Construction Co., Ltd. Osaka Main Office (72) Inventor Masami Yamashita 1-7-1 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. Main Office (72) Inventor Koichi Iwanami 1-chome, Kyobashi, Chuo-ku, Tokyo 7-1 Toda Construction Co., Ltd. Main Office (72) Inventor Akihiro Miwa 1-1-7 Kyobashi, Chuo-ku, Tokyo Toda Construction Co., Ltd. Main Office (72) Inventor Masayuki Sakaguchi 64 Ishizu Kitamachi, Sakai City, Osaka Prefecture Address Kubota Vinyl Pipe Factory (72) Inventor Riku Watanabe 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Vinyl Pipe Factory (72) Kazutaka Takada 64, Ishizukitamachi, Sakai City, Osaka Prefecture, Kubota Vinyl Pipe Factory Co., Ltd. (72) Inventor, Tomoaki Hori 64, Ishizukitamachi, Sakai City, Osaka Prefecture, Kubota Vinyl Pipe Factory, Co., Ltd. (72) Gensai Matsuzaki Sakai City, Osaka Prefecture 64 Ishizukitamachi Kubota Vinyl Pipe Factory

Claims (1)

[Claims] 1. A formwork including a weir plate and a spar attached to the weir plate, wherein the weir plate is provided with a first fitting portion, and the strut is detachably fitted to the first fitting portion. A formwork provided with a second fitting portion.