JP3008960U - Resin concrete formwork - Google Patents

Abstract

(57) [Summary] [Structure] A resin which is provided on the barrier plate with plate-shaped ribs extending in the vertical and horizontal directions parallel to the entire outer periphery of the plate and the vertical and horizontal sides of the barrier plate and connecting both ends. A concrete formwork, in which some or all of the plate-shaped ribs except the outer peripheral portion are arranged in two rows,
And, the distance between the plate-like ribs in the two rows is 0.2 of the plate-like rib thickness.
~ 5 times the resin concrete formwork. [Effect] In the resin concrete formwork of the present invention, part or all of the plate ribs in the vertical direction and / or the horizontal direction are arranged in two rows at narrow intervals, so that the resin formwork itself is used. Of course, even if you cut between the plate-like ribs, both of the cut pieces retain the shape of the concrete form, so each of them is effectively used as an independent small concrete form. Can be used.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a resin concrete formwork.

[0002]

[Prior art]

 Conventionally, concrete formwork is often used for civil engineering, concrete pouring at construction sites, etc.As such concrete formwork, there are plywood called weirboards, and at the construction site there are multiple piers on the entire circumference and in the center. Wooden formwork used by hammering has been known for a long time, but due to global environmental problems in recent years, it is becoming difficult to use wood products, and as an alternative to this, a resin concrete formwork was developed. Is being used.

Such a resin concrete formwork has, as disclosed in, for example, Japanese Patent Laid-Open No. 6-129094, a flat plate portion generally called a weirboard corresponding to a plywood part of a wooden concrete formwork, and a weir plate. It is composed of the entire outer circumference of the weir plate provided for the reinforcement of the weir plate and plate ribs in the vertical and horizontal directions parallel to each side of the weir plate and connecting both ends, and is lightweight. Not only can it withstand many repeated uses, but since the plate-shaped ribs are equivalent to the wooden concrete formwork piers, it is extremely efficient without the need to hit the piers at the construction site. It has many features that cannot be achieved. However, since such a resin concrete formwork is manufactured by using a mold of a certain shape as a molded product in which a dam plate and plate-like ribs are integrated, there is a lack of freedom regarding the shape. was there. For example, in the construction of buildings and houses, the heights of the partition walls are not necessarily the same for all, and the heights may differ from floor to floor or even on the same floor depending on design specifications. It was difficult to respond adequately to concrete formwork alone. For this reason, when a resin concrete formwork with a size of 2 x 6 = 600 x 1800 mm, which is a typical size of 2 x 6 is used to place a wall with a height of 2450 mm, A resin concrete formwork with a plywood plate with a height of 650 mm added to the top of the formwork, or with platelike ribs in the horizontal direction at a position 650 mm from the upper end in the vertical direction. As mentioned above, the method of cutting along the ribs and adding this to the upper part of the above-mentioned mold was used.

However, in the case of the former method, not only is it complicated to arrange the resin concrete formwork and the plywood formwork at the same construction site, but also to use the plywood as the formwork. Has the problem of poor workability because it requires the use of a splint on the plywood to form a formwork. Furthermore, because different materials such as wood and resin are added, there is a difference in properties such as water swellability. This causes problems such as unsatisfactory finish of the concrete wall at the joint. In the case of the latter method, the problem as in the case of using the above plywood does not occur, but the cut residual formwork has an outer periphery on the cut surface as shown in FIG. Since there is no plate-like rib on the surface, it cannot be used as a formwork, which is very uneconomical.

[0005]

[Problems to be solved by the device]

 The inventors of the present invention have solved this problem and studied to develop a resin concrete formwork that can effectively use both of the cut forms as a formwork even if cut at such a specific part. Invented.

[0006]

[Means for Solving the Problems]

 The present invention is a resin concrete formwork in which a weir plate is provided with plate-shaped ribs in the vertical and horizontal directions that are parallel to the entire outer circumference of the plate and the vertical and horizontal sides of the weir plate and that connect both ends. A part or all of the plate-shaped ribs except the outer peripheral portion are arranged in two rows, and the distance between the plate-shaped ribs in the two rows is 0.1 to 5 times the plate thickness of the plate-shaped ribs. The present invention provides a resin concrete formwork.

The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a conventionally known resin concrete formwork as seen from the rib side as shown in the above-mentioned Japanese Patent Laid-Open No. 6-129094, and FIG. Fig. 2 is a cross-sectional view of the mold frame taken along the line AA, wherein the mold frame comprises a dam plate (1), plate-like ribs (2) provided on the entire outer peripheral portion of the plate, and a dam plate. The plate-like ribs (3) in the vertical direction that are parallel to the vertical (height direction) side and connect the upper and lower ends, and the horizontal direction (width direction) that is parallel to the horizontal (width direction) side of the barrier plate and connect the left and right ends. ) Plate-like ribs (4), and each of these plate-like ribs (3) in the longitudinal direction and plate-like ribs (4) in the transverse direction is at least one each, usually at predetermined intervals. A plurality of (31 to 3n, 41 to 4n) are provided. The resin concrete formwork of the present invention basically comprises the conventionally known concrete formwork described above. However, the plate-shaped ribs except the outer peripheral portion, that is, the plate-shaped ribs in the vertical direction and the plate in the horizontal direction are used. The ribs are partially or wholly arranged in two rows, and the distance between the plate ribs in the two rows is set to 0.1 to 5 times the plate thickness of the plate ribs. FIG. 3 is a perspective view of the resin concrete formwork of the present invention seen from the rib side, and FIG. 4 is a cross-section of the formwork of FIG. 3 taken along line XX. In this example, all lateral plate-shaped ribs (41 to 4n) except the outer peripheral portion are arranged in two rows (411, 412 to 4n1, 4n2). In the following description, the vertical plate-shaped ribs and the horizontal plate-shaped ribs do not include the vertical and horizontal plate-shaped ribs provided on the outer peripheral portion of the barrier plate.

As described above, the resin concrete formwork of the present invention is basically composed of a dam plate and plate-like ribs similarly to the conventionally known resin concrete formwork. Is generally about 2 to 20 mm, and the total height of the weir plate and plate ribs is not particularly limited in terms of strength and rigidity, but is compatible with conventional plywood concrete formwork. Therefore, the height is almost the same as that of the conventional product, for example, about 62 mm in the Kanto area and about 72 mm in the Kansai area, and the thickness of the plate rib is not particularly limited, but is usually about 2 to 7 mm. Further, the plate-shaped rib may have the same thickness at the base portion of the barrier plate and the rib tip portion, but has a taper such that the rib tip portion becomes thinner than the root portion in terms of formability. May be.

In the resin concrete formwork of the present invention, the number of the plate-like ribs (3) in the longitudinal direction and the plate-like ribs (4) in the lateral direction are not necessarily limited, but at least one, usually two. Although the above is provided and its arrangement is appropriately determined depending on the fixing condition of the formwork at the time of use, in order to most effectively enjoy the effect of the present invention, the formwork is partially used. It is preferable to provide it in advance in a portion that is likely to be cut in order to cut, for example, in the case of a general size of width x height = 600 x 1800 mm size, 150 from the upper end, Horizontal plate ribs (4) are provided at 650, 1150, and 1650 mm positions (Fig. 3), or five horizontal plate ribs (4) are equally spaced 300 mm from the upper end, and All lateral plate ribs They are arranged in two rows in the plate-shaped rib plate 0.1-5 times the spacing of the thickness. In this case, at least one plate-shaped rib (3) in the vertical direction is appropriately arranged, usually 5 to 10 from the viewpoint of maintaining strength, and the plate-shaped ribs may or may not be arranged in two rows. Such a resin concrete formwork of the present invention can of course be used by itself in the same manner as a conventional resin concrete formwork, and between the plate-shaped ribs arranged in two rows as described above, for example, Y- shown in FIG. By cutting between the Y, a plurality of resin concrete molds having different heights of width × height = 600 × 650 mm and width × height = 600 × 1150 mm can be obtained. Since all of them have plate ribs on the entire circumference of the weir plate, both of them can be effectively used as a mold. Of course, it is also possible to cut between the ribs for all of the horizontal plate-like ribs arranged in two rows, or cut only for the portion of the desired height. Since all the formed molds have plate-shaped ribs around the entire circumference of the dam plate, any of them can be used as an independent resin concrete mold of a cut size. Although FIG. 3 shows an example in which all the plate-like ribs (4) in the lateral direction are arranged in two rows, it is not always necessary to arrange all the plate-like ribs in two rows, and they are cut. It is also possible to arrange them in two rows only for the parts that are likely to be used. Similarly, when it is necessary to cut the concrete formwork in the vertical direction, it is sufficient to arrange some or all of the plate ribs in the vertical direction in two rows.

In the resin concrete formwork of the present invention, a part or all of the plate ribs in the vertical direction and the plate ribs in the horizontal direction are thus arranged in two rows, and the plate rows in the two rows are arranged. The distance between the ribs is set to be 0.1 to 5 times the plate thickness of the plate-like rib. Here, the plate thickness of the plate-like rib means that the rib is the base and the tip of the rib with the dam plate. If the taper has a taper, the plate thickness at the base is used as a reference. The distance between the two plate ribs arranged in two rows is preferably as narrow as possible even within the above range so that the cut surface forms a substantially flat surface during cutting. In terms of points, it is most preferable that the intervals are such that the cutting blade can be inserted during cutting.

The base resin for forming the resin concrete formwork of the present invention is the same as the conventionally known resin for forming the resin concrete formwork. For example, a polyolefin resin such as polyethylene or polypropylene, Thermoplastic resins such as ABS resin, vinyl chloride resin, nylon, polycarbonate and acrylic resin, and thermosetting resins such as unsaturated polyester, urethane and epoxy are used. In addition, various reinforcing materials, especially fiber-based reinforcing materials such as glass fiber, carbon fiber, aramid fiber and various organic fibers are blended in these resins in order to efficiently exhibit the performance as a mold. The content of the reinforcing fiber in that case is usually 50% by weight or less, preferably 40% by weight or less. In addition, various additives such as various pigments, lubricants, antistatic agents and stabilizers that are usually used may be blended.

[0012]

[Effect of device]

 INDUSTRIAL APPLICABILITY The resin concrete formwork of the present invention can be used as a concrete formwork by itself because some or all of the longitudinal or / and lateral plate ribs are arranged in two rows at narrow intervals. Of course, even when cutting between the plate-like ribs, both cut pieces retain the shape of the concrete form, so each is effective as an independent small concrete form. Can be used for

[Brief description of drawings]

FIG. 1 is a perspective view of a conventional resin concrete mold seen from a rib side.

FIG. 2 shows a cut surface when the conventional form of FIG. 1 is cut at AA.

FIG. 3 is a perspective view of an example of the resin concrete formwork of the present invention seen from the rib side.

FIG. 4 shows a cut surface of the mold of the present invention of FIG. 3 when cut along the line XX.

FIG. 5 is a perspective view showing a state of the present invention shown in FIG. 3 when both are cut when cut along the line YY between the plate-shaped ribs arranged in two rows.

FIG. 6 shows the conventional form shown in FIG.
It is a perspective view which shows the state of both cut | disconnected when it cut | disconnects by -W.

[Explanation of symbols]

1: Bar plate 2: Bar plate outer peripheral plate-shaped rib 3: Vertical plate-shaped rib 4: Horizontal plate-shaped rib

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Tsujino 1 Sadayoshi 500, Zenshocho, Izumi City, Osaka Tsujino Stock Association In-house

Claims (1)

[Scope of utility model registration request] 1. A weir plate, the entire outer periphery of the plate and the length of the weir plate,
A resin concrete formwork provided with plate-like ribs parallel to each horizontal side and connecting both ends in the vertical direction and the horizontal direction, and part or all of the plate-like ribs except the outer peripheral portion are arranged in two rows. A resin concrete formwork characterized in that the distance between the two rows of plate-like ribs is 0.1 to 5 times the plate thickness of the plate-like ribs.