JPH0720182Y2 - Concrete formwork for masonry - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a concrete formwork for stacking, and more specifically, to a retaining wall for river bank protection, road improvement, residential land development, measures against collapse of steep slopes, etc. The present invention relates to a masonry concrete formwork that is suitably used for concrete construction that forms a masonry pattern.

<Conventional Technology> Conventionally, retaining walls for river bank protection, road improvement, residential land development, and measures against collapse of steep slopes are often constructed of concrete, which is superior in terms of durability, material cost, and construction cost. However, in such construction, when the surface is made flat, only the gray surface of the inorganic gray concrete is emphasized, and the living environment and natural environment are impaired.

Therefore, in recent years, there has been a longing for the development of a retaining wall that does not impair the living environment and the natural environment, and a construction method that can express the appearance of a masonry pattern on the surface of a concrete driving retaining wall has been developed. .

The applicant of the present application also previously proposed a construction technique in which a plurality of molds made of synthetic resin foam are combined to form a pattern of natural stones on the surface of the retaining wall (see Japanese Patent Laid-Open No. 59-213820). ).

Since the formwork used for the above construction is made entirely of synthetic resin foam, it can be made sufficiently lightweight, and even when working in high places where a large number of pattern formwork must be stacked, use a crane or the like. There is an advantage that it can be easily installed by hand without any work.

<Problems to be solved by the invention> However, the formwork used for the above-mentioned construction has a plurality of recesses for forming a pattern of natural stones, and for forming joints between the recesses. A ridge is formed, and at least the peripheral portion of the mold is configured as a ridge for forming a joint. Therefore, when a plurality of molds are used in combination, joints are continuously formed along the boundary of each mold, and the masonry pattern formed on the retaining wall by the joints. There was a problem that it had an unnatural appearance as if it were divided into multiple parts.

Moreover, if the same formwork is used in combination, the pattern of the same pattern will be repeated and the masonry pattern will be monotonous, so it is necessary to prepare a formwork having several types of pattern patterns formed, There was also a problem that the construction cost was high.

On the other hand, in order to realize various masonry patterns while using the same formwork in combination, it is inevitable that various masonry patterns must be expressed in one formwork. There has been a problem that the formwork becomes large (see, for example, Japanese Patent Laid-Open No. 53-28903), and workability at high places deteriorates.

This invention was made in view of the above problems,
To provide a concrete formwork for stacking, which can form a random stacking pattern with a sense of unity on a retaining wall, can form various pattern patterns at low cost, and has good workability in high places. The purpose is to

<Means for Solving the Problems> As a concrete formwork for stacking of the present invention to achieve the above-mentioned object, a plurality of concave portions that form a pattern of natural stone are randomly arranged on one surface. In the state where the lower side of the second mold is aligned with the lower side of the first mold, the rectangular first and second molds are made of synthetic resin foam. , With the left side of the first mold being matched with the right side of the second mold, and the right side of the first mold being matched with the left side of the second mold. In order to form one natural stone pattern in cooperation with the recesses of the other mold, at least one of the matching side parts faces at least one recess, and The first formwork and the two second formwork form one set, and in each set, each formwork is the above-mentioned combination. It is characterized in that the molds of the same kind are arranged in a square shape in which the sides that can be matched are matched with each other and the molds of the same kind are arranged symmetrically with respect to each other.

<Operation> According to the concrete formwork for construction having the above-mentioned configuration, the first
Prepare at least two molds and a second mold,
By combining the respective molds so that the concave portions facing the side portions of the first mold frame and the concave portions facing the side portions of the second mold frame respectively match, It is possible to form a concave portion capable of revealing one natural stone pattern at the boundary portion between the mold and the second mold. Therefore, the joint portion is not continuously formed along the boundary portion of both molds, and a random stacking pattern having a sense of unity can be formed as a whole.

In addition, the left side of the first mold and the right side of the second mold can match with each other from the viewpoint of forming a concave portion that exposes one stone pattern at the boundary between both molds. , The right side of the first formwork, the second side of the formwork and the left side of the formwork can match, and the lower side of the first formwork and the lower side of the second formwork can match. Is.

Therefore, the first formwork and the second formwork can be continuously arranged alternately in the left-right direction, and the other formwork can be arranged below each of the alternately arranged formwork. It is possible to arrange what is upside down.

In this way, the two types of formwork can be alternately combined in the left-right direction and the up-down direction, and in one combination direction, the formwork can be turned upside down, so that the two types of formwork can be combined. A variety of masonry patterns can be formed with the formwork. That is, since the random pattern formed by the inverted mold and the random pattern formed by the non-inverted form are arranged point-symmetrically, 2
With a small number of forms, it is possible to realize a variety of random stacking patterns. It is easy to understand that the viewer is symmetric if the shape is axisymmetric even if it is a fairly complicated shape, but if the complicated shape is arranged point-symmetrically, it is symmetric. It is due to the ergonomic property that it is difficult to grasp something.

In particular, by handling two sets each as a set of four and treating this set as the minimum unit, and combining this set continuously in the left-right direction, workability with a small formwork of only two types is possible. It is possible to obtain various random stacking patterns easily and easily.

When trying to realize various masonry patterns with one type of formwork as in the past, it is inevitable that various masonry patterns must be expressed in one formwork.
Since the formwork of is large, it is not suitable for work in high places.
On the contrary, when a small formwork is used in order to secure workability in high places, one type of formwork can only obtain a monotonous masonry pattern. Thus, in the conventional example (Japanese Patent Laid-Open No. 53-28903), while it is not possible to simultaneously solve both the problems of realizing various masonry patterns and improving workability at high places,
In the present application, both conflicting problems can be achieved at once.

<Examples> Hereinafter, detailed description will be given with reference to the accompanying drawings illustrating examples.

FIG. 1 is a perspective view showing a concrete formwork for assembling according to the present invention.

The formwork of this invention includes a first formwork (1) and a second formwork (2).
It consists of the combination with and each form (1) (2)
Is a rectangular flat plate-like body formed of expanded polystyrene obtained by filling expanded mold resin particles in a mold cavity, heat-expanding them, and heat-sealing each other. The first formwork (1) has a left side portion (1a), a right side portion (1c) and a lower side portion (1b). The first formwork (2) has a left side portion (2c), a right side portion (1a) and a lower side portion (1b).

Recesses (10) (10a) (10b) (for forming a so-called random pile pattern) in which large and small natural stones are irregularly piled up on the concrete-casting-side surface of each formwork (1) (2) ( 10c) (10
d) ..., (20) (20a) (20b) (20c) (20d) ... are arranged irregularly, and the protrusions (11), (for forming joints) are provided between the respective recesses. 21) are formed in various shapes.

The one recessed portion (10a) of the first formwork (1) and the one recessed portion (20a) of the second formwork (2) cooperate with each other to form one retaining wall (W). The left side (1a) of the first formwork (1) and the right side (2a) of the second formwork (2) are placed so that the natural stone pattern (A) (see FIG. 4) can be revealed. In the unloaded state, that is, on the side (1a), (2a) side, the ridge (11)
It is provided in an open state without configuring (21). Further, the recessed portion (10b) of the first formwork (1) and the recessed portion (20b) of the second formwork (2) cooperate with each other to form the natural stone pattern (B) on the retaining wall (W). Are provided so as to be exposed to the lower sides (1b) and (2b) of the molds (1) and (2), respectively. Further, the recessed portion (10c) of the first formwork (1) and the recessed portion (20c) of the second formwork (2).
Are the right side part (1c) of the first formwork (1) and the left side of the second formwork (2) so that the natural stone pattern (B) can appear on the retaining wall (W) in cooperation with each other. It is provided so as to face each part (2c). Therefore, the peripheral side portion (12) of the first formwork (1) has the concave portions (10a) (10b).
(10c) and (10d) are partially cut away, and the peripheral side part (22) of the second formwork (2) has the recesses (20a) (20b) (20c) (20d). ) Has been partially cut away.

With the above configuration, for example, as shown in FIG. 2 and FIG. 3 which is a schematic view showing a combined state of the molds (1) and (2) corresponding thereto, the first mold (1) is formed. And a plurality of second molds (2) are prepared one by one, and the left side part (1a) of the first formwork (1) and the right side part (2a) of the second formwork (2) are connected to each other. Lower side part (1b) of second formwork (1) and lower side part (2b) of second formwork (2), and right side part (1c) of first formwork (1) and second formwork By placing concrete in a state in which the molds (1) and (2) are alternately and point-symmetrically arranged so that the left side portions (2c) of (2) face each other, the retaining wall (W) Natural stone patterns (A) (B) (C) (D) are also applied to the parts corresponding to the boundaries of each form (1) (2)
Can be formed respectively (see FIG. 4). Therefore, continuous joints are not formed along the boundaries of the molds (1) and (2), and it is possible to integrally form a random stacking pattern exhibiting a natural texture. Moreover, two types of formwork (1) and (2) can be alternately combined in the left-right direction and the up-down direction, and in addition, in one combination direction, the formworks (1) and (2) are turned upside down. Since it is possible to combine them, the above two types of formwork (1)
With (2), various masonry patterns can be formed. That is, the random stacking pattern formed by the inverted molds and the random stacking pattern formed by the non-inverted molds are arranged point-symmetrically, so that these two types of molds (1) (2 ) Can form various masonry patterns. In particular, if two sets of two molds (1) and (2) are made into one set and this set is treated as a minimum unit, this set can be combined continuously in the left-right direction, and as few as two types can be obtained. A variety of small piles can be easily obtained with good workability using a small type of formwork. As a result, both contradictory problems of realizing various masonry patterns and improving workability at high places can be solved at once.

The present invention is not limited to the above-described embodiment, and for example, with respect to the concave portions, one or a plurality of concave portions are made to face all the side portions of each of the molds (1) and (2). In short, the formwork of this invention is, in short, each formwork (1)
It suffices that at least one recess is provided on each of at least three sides of (2).

<Effect of Device> As described above, according to the concrete formwork for stacking of the present invention, at least one natural stone pattern can be formed at each boundary of each combined formwork, so that the entire retaining wall can be seen. For example, it is possible to form an unbalanced stacking pattern that is not divided by joints and the like.

Moreover, in order to match each of the recesses, the molds are alternately combined and the molds are combined in the state of being vertically inverted in one combination direction, so that many molds having different pattern patterns are prepared. It is possible to form various randomly stacked patterns without doing so, and it is possible to reduce the construction cost. In particular, four molds of two each are treated as a set, and this set is treated as the minimum unit. By continuously combining this set in the left-right direction, a small formwork of a small number of two types can be obtained. It has various peculiar effects that it is possible to easily obtain various stacked patterns with good workability.

[Brief description of drawings]

FIG. 1 is a perspective view showing a concrete formwork for assembling according to the present invention, in which FIG. A is a perspective view of the first formwork, FIG. B is a perspective view of the second formwork, and FIG. FIG. 4 is a plan view showing a state, FIG. 3 is a schematic view showing a combined state of formwork corresponding to FIG. 2, and FIG. 4 is a plan view of a retaining wall constructed using the formwork of the present invention. (1) ... first formwork, (2) ... second formwork, (1a)
(2c) …… Left side, (1b) (2b) …… Lower side, (1c)
(2a) …… Right side, (10a) (10b) (10c) (10d) (20
a) (20b) (20c) (20d) …… A recess facing the side.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuyuki Sakamoto 29, Oromatsu-cho, Nishi-ku, Yokohama, Kanagawa Toyoko Giken Co., Ltd. (72) Masato Inoue 29, Komatsu-cho, Nishi-ku, Yokohama, Kanagawa Toyoko Giken Co., Ltd. (72) Inventor Taku Murohashi 2-15-9, Uchikanda, Chiyoda-ku, Tokyo Estren Kako Co., Ltd. (56) Reference JP-A-53-28903 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A rectangular first mold frame and a second mold frame made of a synthetic resin foam in which a plurality of concave portions forming a pattern of natural stones are irregularly arranged on one surface. The lower side of the first mold is matched with the lower side of the second mold, and the left side of the first mold is matched with the right side of the second mold. In a state in which the left side of the second form is matched with the right side of the first form, one natural stone pattern is formed in cooperation with the recesses of the other form. In order to do so, at least one recess is made to face at least the above-mentioned matched side portions, and one set is constituted by two first molds and two second molds, and one set is formed. In the set, each formwork is arranged in a square shape in which the sides that can be matched are matched with each other, and molds of the same type are point-paired with each other. Masonry concrete formwork, characterized in that disposed on.