JP3023901U - Inner mold for groove forming - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To obtain an inner formwork for forming a groove or the like on the surface of a concrete block. An attachment means is provided at the bottom of a form body made of a flexible member, and the form body is detachably attachable to the inside of a block manufacturing form device by the attachment means. According to this inner formwork, construction can be facilitated and desired groove can be easily formed on the surface of the concrete block.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to an inner formwork, and more specifically to an inner formwork for forming a groove, which is preferably used when forming a concave groove or the like on the surface of a concrete block.

[0002]

[Prior art]

 Applicants sell a variety of concrete blocks in addition to the four-legged concrete block commonly referred to as Tetrapod®. And these concrete blocks are widely adopted as a wave-dissipating or consolidating means when constructing coastal structures such as seawalls and breakwaters.

By the way, recently, this type of concrete block is not only used as a means for wave breaking and root consolidation when constructing a coastal structure, but rather for a member of the family Rustaceae such as arame and Kajime. There is an increasing tendency to be used as a habitat for epiphytes and aquatic organisms such as abalone, turban shells and sea urchins. For this reason, it is becoming more common to form a groove that is compatible with target plants of the family kelpaceae and aquatic organisms on the surface of concrete blocks to form a fisheries cooperative type block.

As a concrete means for forming such a concave groove on the surface of a concrete block, for example, for forming a groove, an inner form is formed by combining an iron plate or equilateral angle steel. The inner formwork for forming the groove is joined to the inside of the formwork device for manufacturing the concrete block by welding or the like.

[0005]

[Issues to be solved by the device]

 However, forming concave grooves in a concrete block by such means not only takes time and labor to join the groove inner mold to the inside of the block making mold device, but also makes the forming mold. When the device is curved, it becomes more troublesome because it is necessary to fill the caulking agent in the gap formed between the groove forming inner mold and the inner mold. In addition, if the concave groove formed in the block is deep, it is difficult to remove the mold, and when using the manufacturing frame device for manufacturing a normal block, it is necessary to remove the inner mold for groove molding and restore it. is there. Furthermore, when the mounting position of the groove forming inner formwork spans multiple members of the formwork device, it is difficult to install by welding, and after forming the block, the groove forming inner formwork is destroyed. Therefore, it was pointed out that there are various problems to be solved, such as difficulty in diversion.

[0006]

[Means for Solving the Problems]

 Therefore, in this invention, a flexible frame member such as urethane rubber is used to form the mold body, and mounting means such as mounting bolts are provided at the bottom of the mold body and the block is manufactured by the mounting means. By adopting a structure that is detachably attached to the inside of the formwork device, many problems as described above are solved all at once.

In this case, if the side surface of the mold body is formed by a tapered surface, it is preferable that the block placed in the manufacturing mold device can be easily demolded.

[0008]

[Mode for Carrying Out the Invention]

 In this invention, a mold body made of a flexible material having elasticity such as urethane rubber is attached to the inside of the block forming mold device with a mounting bolt or the like, and concrete is applied to the manufacturing form device. By setting and curing, a concrete block having concave grooves corresponding to the shape of the mold body is molded.

[0009]

【Example】

 Next, a preferred embodiment of the groove inner mold according to the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2, an inner mold 10 for forming a groove according to the present invention includes a mold main body 12 formed of a flexible material such as urethane rubber. The mold body 12 is formed into a truncated truncated pyramid shape in which each of the side surfaces 14a to 14d is formed by a tapered surface so that the cast concrete can be easily demolded. Further, a rectangular iron plate 16 is embedded in the top of the mold body 12, and mounting bolts 18 as fixing means are arranged on the lower surface of the iron plate 16. In this case, if the concave portion 20 is formed in the bottom of the mold body 12 as in the present embodiment, not only the delicate curved surface of the manufacturing mold equipment can be dealt with but also the urethane rubber can be used. It is preferable because it is possible to save materials such as.

When using the groove forming inner mold 10 according to the present invention configured as described above, a block manufacturing mold device A in which mounting holes 22 are preliminarily formed at predetermined locations is prepared. The mold body 12 is mounted by inserting the mounting bolts 18 from the inside of the block manufacturing mold device A into the mounting holes 22 and fixing them with nuts (see FIG. 3). Then, after applying a release agent to the mold body 12 and the mold device A as needed, concrete is poured into the mold device A for block production and cured to mold the block. When the block formed in this way is released from the mold, if the concave groove B formed by the inner mold 10 is shallow, the inner mold 10 may be directly removed without removing it. When the groove B is deep, the nut may be first removed to release the mold, and then the inner frame 10 may be removed from the molded block.

When the groove formed on the surface of the block by the inner mold 10 is considered for the kelp family such as lamella and Kajime, the depth of the groove is set to about 5 cm. It is preferable that the kelp family can easily settle on the ridges. On the other hand, aquatic organisms such as abalone, turban shell, and sea urchin originally find spaces that fit their bodies in the cracks of rocks and in the gaps between rubble stones, so that they are used as habitats. By setting the above, it is possible to preferably form a habitat suitable for these aquatic organisms.

[0012]

[Effect of device]

 As described above, according to the groove forming inner formwork of the present invention, since the formwork body is made of a flexible material such as urethane rubber, and the side surface is tapered, the block manufacturing is performed. Not only can it flexibly cope with the curved surface of the molding device, but also the molded block can be easily demolded. Further, since the inner formwork is detachably attached to the block making formwork device, the formwork device can be easily used for normal block making without damaging the formwork device. It is also easy to use the inner formwork. Further, there are various advantages such as easy attachment / detachment even when the mounting position of the inner formwork extends over a plurality of members of the formwork apparatus, which is extremely advantageous in practical use.

Although the preferred embodiment of the inner mold for forming grooves according to the present invention has been described above, the present invention is not limited to this embodiment. For example, an adhesive as an attaching means of the inner mold may be used. Needless to say, various modifications can be made within the scope of the present invention without departing from the spirit of the present invention.

[Brief description of drawings]

FIG. 1 is a plan view showing a preferred embodiment of the groove inner mold according to the present invention.

FIG. 2 is a cross-sectional view taken along line X-X of the groove forming inner form shown in FIG.

FIG. 3 is a cross-sectional explanatory view showing a state in which the groove inner mold shown in FIG. 1 is mounted inside a block manufacturing mold apparatus having a curved surface.

FIG. 4 is a perspective view of a four-leg block in which a groove is formed on the surface of the groove forming inner frame shown in FIG.

[Explanation of symbols]

10 Inner Formwork, 12 Formwork Body, 14
Side, 16 iron plate, 18 mounting bolt,
20 recesses, 22 mounting holes, A block manufacturing formwork device, B recessed grooves,

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Victory Hamaguchi 843-13 Nakabori, Niita, Kochi City, Kochi Prefecture Tetra Kochi Sales Office (72) Inventor Kiichi Hirose 2-7 Higashi-Nakanakamachi, Tsuchiura-shi, Ibaraki Te Co., Ltd. Tora Applied Hydraulics Research Institute (72) Toru Aota 2-7 Higashi-nakakanuki-cho, Tsuchiura-shi, Ibaraki Tetra Applied Hydraulics Research Institute

Claims (2)

[Scope of utility model registration request] 1. An inner mold for molding a groove or the like on the surface of a concrete block, the inner mold comprising a mold body made of a flexible member, An inner mold for forming a groove, characterized in that mounting means is provided at a bottom portion, and the mounting means detachably mounts the main frame body inside the block manufacturing mold device. 2. The groove forming inner member according to claim 1, wherein the formwork main body is formed by forming a side surface thereof with a taper surface so that a concrete block placed in the production formwork device can be easily demolded. Formwork.