JP3803987B2 - Concrete formwork for reef formation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technology for producing a concrete fish reef that is submerged in the sea and used to artificially create a growth environment for seafood.
[0002]
[Prior art]
There are various forms of concrete fish reefs, but the cube structure is highly evaluated in terms of being simple and easy to transport, satisfying the conditions that allow seafood to live well by controlling the flow of tide in the sea. Is receiving.
The cube- framed fish reef is composed of an upper frame and a lower frame assembled in a quadrilateral shape, and struts connecting the corresponding corners of the upper frame and the lower frame, and the inner method of the upper and lower frames. The corners intersecting at right angles on the surface are continued by vertical surfaces inclined by 45 degrees with respect to both surfaces intersecting at right angles, and the corners of the inner slope where the upper and lower frames and the struts intersect at right angles are It is encouraged to be continuous with inclined surfaces inclined at 45 degrees with respect to both surfaces intersecting at right angles, and further, the vertical surface and the inclined surface are formed to be continuous with an equilateral triangular surface.
Such a fish reef is formed by incorporating a reinforcing rod into a mold having a space that matches the shape of the product, driving concrete into it, and setting it. Conventionally, as shown in FIG. 6, the mold is divided into a plurality of types of mold forming parts 12a, 12b, and 12c, respectively, with respect to the surfaces of the corners and the portions connecting the corners. , 12d... And the bottom plate 12 are combined, an air vent opening 13 is provided in the lower frame forming portion, a weight 14 is placed on the opening 13, and the weight 14 is fixed by a support 15. It was a structure.
[0003]
[Problems to be solved by the invention]
The conventional formwork has a large number of parts, is not easy to manage, and it takes time to select the parts to be combined.
Secondly, since each part is made of steel and heavy, and the product is small but 2 meters high, at least the top part must be worked by several people.
Thirdly, moisture leaks from the joints of the parts, and a large amount of concrete flows out from the air vent opening, so the surroundings become muddy and difficult to work, and the surface of the product becomes fluffy, The appearance is poor, such as the traces of seams remain clear, and the appearance does not matter because it sinks in the sea, but there are concerns about the effects of leaving it for a long time in a place with strong tide flow.
Fourth, since the air vent opening must be closed, the work of setting the weight is complicated.
And fifth , when the concrete is solidified, the formwork is subjected to the pressure of the concrete from the inside, so it cannot be removed without separating all the parts individually.
[0004]
[Means for Solving the Problems]
Therefore, the present invention connects the upper frame and the lower frame assembled in a quadrilateral shape and the corresponding corners of the upper frame and the lower frame in order to improve the problems that have occurred in the conventional mold. The corners intersecting at right angles on the first inner slope defined by the upper frame and the lower frame are continuous with vertical surfaces inclined by 45 degrees with respect to both surfaces intersecting the right angle. A second inner side surrounded by one side of the upper frame, one side of the lower frame corresponding to one side of the upper frame, and two support columns connecting one side of the upper frame and the lower frame. Corners where the upper and lower frames and the struts intersect at right angles on the slope are continuous by slopes inclined by 45 degrees with respect to both faces intersecting at right angles, and the vertical plane and the slope are equilateral triangular surfaces. Concrete of a cubic framework formed in a continuous manner A concrete reef-forming mold for forming the bets made reef, and one of the bottom plate abutting against the bottom portion of the concrete reef, one side and the second of which is provided on one side surface an outer plate comprises a slope of said second inner size face four sheets abutting the slope, at least in contact with eight sheets of caul said vertical plane and in the plane of the triangle, the first inner dimensions surface In order to cover the portion where the contact plate does not come into contact with the inner plate, the inner plate is composed of eight inner plates that come into contact between the contact plates on the first inner surface, and the second inner method of the outer plate. The draft is given to the surface which contacts the surface.
Then, the backing plate is or are integrated by connecting with the reinforcing frame as a vertical one set, the joint between the outer plate of the bottom plate, squirrel Rukoto is desirable to provided a tapered wall for chamfer formed.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a concrete reef forming form according to the present invention will be described with reference to the drawings.
In FIG. 1, 1 is a bottom plate, the outer periphery is a square of 2 meters square, and a flat part 1a having a width of 25 cm is formed along the outer periphery. The flat part 1a has corners where adjacent inner edges meet at both inner edges. It has been expanded to a range where they are continuous with each other at an inclined side of 45 degrees.
As a result, the inner edge is octagonal.
Further, taper walls 1b and 1b having an inclination of 45 degrees with respect to the plane portion 1a are fixed to a pair of opposed outer peripheral edges, and the connecting portions 1c are connected along all the inner and outer peripheral edges. The connection portion 1c is provided with bolt insertion holes 1d, 1d,... At appropriate intervals.
2 is an outer plate (omitted single front side), the bottom plate 1 and the outer surface portion 2a of the same shape, inner size surface 2b along the inner periphery of the outer side surface portion 2a is provided continuously inwardly .
The inner slope 2b is given a draft angle T (see FIG. 3) by slightly inclining the tip edge toward the center of the outer surface 2a, and the connecting portion 2c along both the inner and outer peripheral edges. Are provided around the connecting portion, and bolt insertion holes 2d, 2d,.
Reinforcing ribs 2e and grips 2f are provided at appropriate intervals on the outer surfaces of the outer surface portion 2a and the inner slope surface 2b.
3, clear width surface 2b of the outer plates 2 and 2, a backing plate for connecting 2b together, the inclined surface 3a of an equilateral triangle which closes between inclined edges of clear width surface 2b, 2b, the outer plate 2 and a corner surface 3b of the corner the same shape including the inclined portion of the clear width surface 2b of the connecting portion 3c are circumferentially along the outer edge, in the connecting portion 3c bolt holes 3d, 3 d · · Are drilled at appropriate intervals.
4 is an inner plate that is alternately combined with the abutting plates 3, 3, ... To form upper and lower inner slopes, and a connecting portion 4a is provided around the outer edge, and the connecting portion 4a is also appropriately spaced. , Bolt insertion holes 4b, 4b, ... Are formed at appropriate intervals, and reinforcing ribs 4c and grips 4d are provided on the outer surface at appropriate intervals.
The abutting plates 3, 3, ... Are integrated by connecting pairs arranged vertically with a reinforcing frame 3e. Although not shown in the drawing, the outer plate 2 is also provided with a tapered wall having an inclination of 45 degrees at a pair of opposed outer edges, like the bottom plate 1, and the outer plate 2 and the bottom plate 1 or The outer plates 2 and 2 are combined so that only the tapered wall formed on one side of the connecting portion 2c is positioned.
[0006]
The bottom plate 1, the outer plate 2, the contact plate 3, and the inner plate 4 formed in this way first lay the bottom plate 1 on a horizontal ground or the like, and stand the outer plates 2, 2. (A in FIG. 2) .
Next, the base plates 3, 3 ... Are assembled inside the four corners (b in FIG. 2), and finally the opening portions left between the bottom plate 1, the external plate 2, and the base plate 3 are removed by the internal plate 4. It is blocked (c in FIG. 2).
When assembling, a reinforcing bar rod (not shown) is incorporated inside, and the connecting portions 1c, 2c, 3c, 4a are screwed into the bolts inserted into the bolt insertion holes 1d, 2d, 3d, 4b and the bolts. Connect with a nut (a simple fastener is used in actual work).
[0007]
When the assembly of the formwork is completed, the concrete 5 is poured from the upper part (d in FIG. 2), solidified with a vibrator or the like so as to spread evenly, and left for several days.
After curing, remove the formwork at the appropriate time.
When the mold is removed, since the draft angle T is formed on the inner slope 2b of each outer plate 2 , the outer plate can be easily removed without being disassembled (see FIG. 3).
Therefore, the demolding operation can be completed in a short time, and the mold can be repeatedly used in a short cycle for efficient use.
By the way, the work of driving concrete into the pre-assembled formwork, the work of assembling the parts that have been disassembled and cleaned to form the formwork, the work of selecting the one that has entered the demolding period and removing the formwork, According to a schedule for completing the work of cleaning the removed parts in the same number of steps in one day, it is possible to form eight fish reefs every day in the case of a six-person system.
After demolding, the product is shipped as a product after a curing period of several weeks.
[0008]
As shown in FIG. 4, the formed product M includes a quadrilateral upper frame 6 and a lower frame 7, and support columns 8 that connect corresponding corner portions of the upper frame 6 and the lower frame 7. , 8... To form a cubic frame structure.
The corners intersecting at right angles on the inner normal surfaces of the upper and lower frames 6 and 7 are 45 degrees with respect to both surfaces intersecting at right angles due to close contact with the corner surface 3b of the backing plate 3 as shown in FIG. The corners of the inner slope where the upper and lower frames 6 and 7 and the support column 8 intersect at right angles are continuous with the inclined vertical face 9, as shown in FIG. 5 b, with the inner slope 2 b of the outer plate 2. Due to the close contact, it is continuous by slopes 10 inclined at 45 degrees with respect to both surfaces intersecting at right angles, and the connection portion between the surface formed on the upper frame 6 or the lower frame 7 by the corner surface 3b and the support column 8 is As shown in FIG. 5 a, the regular triangular inclined surface 3 a in the contact plate 3 is formed so as to be continuous with the regular triangular surface 11. And each edge has chamfered parts, it is hard to cause chipping, and there is no seam streaks, so the surface accuracy is very high, so even if it sinks in a place where the flow of tide is strong, there is almost no secular change. The formwork consists of a total of 17 parts: one bottom plate 1 , four outer plates 2, 2... , Four batting plates 3, 3... And eight inner plates 4, 4. Because it consists only of, there are few parts.
[0009]
In addition, the embodiment has a batting plate integrated vertically, and there are only 4 batting plates, but it is possible to divide it vertically and use 8 batting plates for forming individual corner parts, It is also possible to divide the inner plate into a plurality of pieces and reduce the weight per piece so that it can be assembled by one person, but at least only the side plates are integrally formed on each side. .
[0010]
The fish reef of the embodiment has a cubic frame shape with a side of 2 meters, but is also applicable to a cube shape with a side of 2 meters or more, or a rectangular frame shape.
Further, the material of the mold may be a metal other than steel or a synthetic resin, and it is possible to omit reinforcing ribs and handles.
And the assembly | attachment procedure of a formwork is not limited to description of the said Example, After the assembly | attachment of one side part is completed, the other side part which adjoins can also be assembled | attached in order and completed.
[0011]
【The invention's effect】
According to the present invention, since the number of parts is small and it can be determined at first glance where it will be used, there is no mistake of mistaking parts, the number of assembly steps is small, and the assembly time is halved compared to the conventional case. Therefore, even with a small number of people, it is possible to use it efficiently and repeatedly without having to play the formwork and to operate at full capacity. Moreover, since the draft is given to the surface which contact | abuts the 2nd inner slope of an outer side board, an outer side board can be easily peeled from a concrete surface, and demolding can be performed quickly.
Furthermore, if a pair of upper and lower contact plates are integrated, the rigidity is increased and the assembly becomes easy, and a tapered wall is provided at the connecting portion, so that a chamfered portion is formed at the edge of the product, thereby improving quality. Can do.
[Brief description of the drawings]
FIG. 1 is an exploded view showing an embodiment of a concrete reef forming form according to the present invention.
FIGS. 2A, 2B, 2C, and 2D are explanatory views illustrating a procedure for assembling a mold. FIG.
FIG. 3 is an explanatory diagram showing the effect of draft angle.
FIG. 4 is an explanatory diagram showing a form of a product.
FIG. 5A is an explanatory diagram of the formation of inner normal corners in the upper and lower frames and a connecting portion between the inner normal corners, and FIG. 5B is an inner normal corner corresponding to the connecting portion between the frame and the column. It is formation explanatory drawing.
FIG. 6 is an explanatory diagram of a conventional example.
[Explanation of symbols]
1 ·· Bottom plate, 1a ·· Planar portion, 1b ·· Tapered wall, 1c ·· Connecting portion, 1d ·· Bolt insertion hole, 2 ·· Outer plate, 2a ·· Outside surface portion, 2b ·· Inner slope, 2c ..Connecting part, 2d..Bolt insertion hole, 2e..Rib, 2f..Handle, 3..Batting plate, 3a..Inclined surface, 3b..Corner surface, 3c..Connecting part, 3d..Bolt Insertion hole, 3e ... Reinforcement frame, 4 ... Inside plate, 4a ... Connection part, 4b ... Bolt insertion hole, 4c ... Rib, 4d ... Handle, 5 ... Concrete, 6 ... Upper frame, 7 ..Lower frame, 8 ..Stand , 9 ..Vertical surface, 10 ..Slope, 11 ..Equilateral triangle surface, 12 ..Bottom plate, 12 a, 12 b, 12 c, 12 d. .. Opening, 14 ... Weight, 15 ... Support, T ... Draft , M ... Product.

Claims (3)

The first frame is composed of an upper frame and a lower frame assembled in a quadrilateral shape, and struts connecting the corresponding corners of the upper frame and the lower frame, and is surrounded by the upper frame and the lower frame, respectively. corner intersecting at right angles in the clear width plane and is continuous with the vertical plane which is at a time inclined 45 degrees from each other with respect to both surfaces intersecting the perpendicular both to one side of the upper frame, corresponding to one side of the upper frame and one side of the lower frame, the corners vertical and the frame and struts that Majiwa perpendicularly in a second inner size surface formed surrounded by a second strut connecting the side of the upper frame and the lower frame, the is continuous with the inclined surface that increments inclined 45 degrees from each other with respect to both surfaces intersecting at right angles, further, form the concrete reef of cubical frames shape and to form so as to continuously and the said vertical plane slopes in terms of an equilateral triangle there in concrete reef-forming mold for ,
And one of the bottom plate abutting against the bottom portion of the concrete reef, one side and the second provided on one side surface thereof clear width surface comprises a slope of said second inner size face four sheets abutting an outer plate, at least the vertical plane and caul eight sheets abutting on the surface of the triangle, so as to cover the portion where the backing plate is not abut in the first clear width surface, the first of together constituting between abutting eight sheets of the inner plate to said abutting plates in slope,
A concrete reef formation formwork characterized in that a draft angle is given to a surface of the outer plate that contacts the second inner slope .   The formwork for concrete fish reef formation of Claim 1 with which the said contact plate was connected and integrated by the reinforcement frame as 1 set of upper and lower sides.   The formwork for concrete reef formation in any one of Claim 1 or 2 which provided the taper wall for chamfer part formation in the joint with the outer side board in the said baseplate.

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