JP2009034956A - Frame for manufacturing block and its production method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a frame for a block and a production method for a block, wherein a block having good qualities can be formed with a short aging period of a concrete even under low temperature surroundings such as in winter season or in a cold district and the aging can easily be conducted. <P>SOLUTION: The invention relates to a frame 1 for manufacturing a block 101 by filling concrete therein, wherein a heat-insulating layer 14 is formed on an outer surface of the frame 1, thereby an aging period of the block 101 can be shortened even under low temperature surroundings such as in winter season or in a cold district to give the block 101 having good qualities and also such an aging process can easily be conducted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a block manufacturing form and a manufacturing method using the manufacturing form.

  Conventionally, as a block manufactured by filling concrete in a formwork, as a multi-leg type block used for coastal or river wave extinguishing, revetment, etc., the product name “Tetrapod” ( A quadruped block such as a registered trademark is well known. As shown in FIG. 20, the quadruped block 101 includes a central portion 102 and four head-cone-shaped leg portions 103 protruding radially from the central portion 102. The four leg portions 103 project radially from the central portion 102 while maintaining the same solid angle with each other, and are usually made of concrete. Such a block 101 is manufactured by filling the manufacturing form 104 with concrete in a fluid state, and waiting for its solidification to be removed from the form.

Conventionally, the mold 104 is divided into three equal parts around each leg 103 as shown in FIG. 21 so that the adjacent three legs 103 are substantially covered by 1/3 in the circumferential direction. It consists of four substantially identically shaped templates 105, 106, 107, and 108 (not shown for the back), and each of the split ends is fastened with cotters and cotter pins or bolts and nuts at flanges 109 at the ends. Joined and fixed by a member 110 and assembled in a hollow three-dimensional shape, and an end plate 111 covering the end surface of the leg 103 is arranged at the tip of the portion corresponding to each leg 103 (patent) Document 1 and Patent document 2).
JP-A-11-77644 JP 7-256620 A

  However, conventionally, in order to cure the concrete in which the mold is filled with concrete, the entire mold 104 is covered with a curing sheet such as a blue sheet or a heat insulating sheet and heated by a heating means such as briquette. In this way, when the outside air temperature is low, such as in winter or in cold regions, the increase in strength due to the curing of the concrete filled in the mold 104 is delayed, and accompanying this, the quadruped block is It prevented the quality from deteriorating.

  However, it is not possible to obtain a sufficient heat insulation effect simply by covering the entire mold 104 with the curing sheet, and therefore the strength due to the curing of the concrete cannot be increased under the influence of the outside temperature. There was a problem that the quality of the leg-shaped block 101 deteriorated.

  In addition, in the work process of covering the formwork 104 with the curing sheet after placing the conventional concrete, the formwork 104 is already cooled by the influence of the outside air temperature when the concrete is poured. Therefore, there is a problem that the concrete already filled in the mold 104 is cooled before it is covered with the curing sheet, and the quality of the quadruped block 101 is affected.

  The present invention overcomes the above problems and can shorten the curing period of concrete even in a low-temperature environment such as winter and cold districts, yet it can form a block with good quality, Moreover, the block formwork and the manufacturing method of a block which can perform such curing easily are provided.

  The invention according to claim 1 is a block manufacturing form for filling concrete with a block, wherein a heat insulating layer is formed on an outer surface of the form.

  According to a second aspect of the present invention, in the block manufacturing form according to the first aspect, the block is a block having legs.

  The invention of claim 3 is the mold for manufacturing a block according to claim 1 or 2, wherein the heat insulating layer is formed by blowing foamable synthetic resin material on the outer surface of the mold and foamed in situ. It is to be.

  The invention of claim 4 is a block manufacturing method for manufacturing a block by filling concrete into a formwork, and before the step of filling the inside of the formwork with a heat insulating layer on the outer surface of the formwork. Is to form.

  According to a fifth aspect of the present invention, in the method for manufacturing a block according to the fourth aspect, the block is a block having legs, and a plurality of templates formed so as to be split so as to cover the outer surface of the block. When using the molds provided, filling the inside of the molds combined with the molds in a hollow and filling the concrete, and then curing the molds, the molds between the molds It is characterized in that the joining is released and separated from the manufactured block.

  The invention of claim 6 is the method of manufacturing a block according to claim 4, wherein the block is a block including a central portion and a plurality of legs projecting radially from the central portion, and the outer surface of the block is Using the above-mentioned formwork provided with a plurality of stencils that can be divided so as to cover them, filling the inside of the above-mentioned formwork that has been joined and hollowed by joining the stencils, and curing them In the subsequent demolding, the molds are released from each other and separated from the manufactured block.

  A seventh aspect of the present invention is the method for manufacturing a block according to any one of the fourth to sixth aspects, wherein a foamable synthetic resin material is sprayed on the outer surface of the mold to form the heat insulating layer by in-situ foaming. It is.

  According to the invention of claim 1, the curing period of the block can be shortened even in a low temperature environment such as a winter season or a cold region, and yet a block with good quality can be formed. Such curing can be easily performed.

  According to the invention of claim 2, in a block having a three-dimensional shape such as a block provided with legs, the curing period of the block can be shortened even in a low-temperature environment such as winter or cold district. In addition, a block having good quality can be formed, and such curing can be easily performed.

  According to the invention of claim 3, since the work space for forming the heat insulation layer can be reduced by forming the heat insulation layer three-dimensionally and by a spraying method, manufacture of the block in a narrow place Is possible. In addition, compared to the case where the formwork is covered with a heat insulating sheet for curing the concrete, it is possible to separate the formwork easily from the block that has been solidified and finished, reducing work time. Can be achieved.

  According to the invention of claim 4, it is possible to shorten the curing period of the block even in a low temperature environment such as the winter season or a cold region, and still to form a block having good quality, Such curing can be easily performed.

  According to invention of Claim 5, it joins and filled concrete in the formwork which can be divided | segmented like the formwork of the block which has a leg part and has a solid shape which joins and uses a some template. Since the work of covering the formwork with a curing sheet and the work of removing the curing sheet covering the formwork before the concrete solidifies and splits the formwork are not required, the curing period of the block can be shortened. Curing can be done easily.

  According to the invention of claim 6, in a separable formwork, such as a multi-leg block formwork, which is used by joining a plurality of form plates, the formwork joined and filled with concrete is a curing sheet. It is not necessary to remove the curing sheet covering the formwork before the concrete is solidified and the formwork is divided, so the curing period of the block can be shortened and the block curing can be performed easily. Can be done.

  According to the invention of claim 7, since the work space for forming the heat-insulating layer can be reduced by forming the heat-insulating layer in a three-dimensional manner by the spraying method, the block is manufactured in a narrow place. Is possible. In addition, compared to the case where the formwork is covered with a heat insulating sheet for curing the concrete, it is possible to separate the formwork easily from the block that has been solidified and finished, reducing work time. Can be achieved.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in FIG. 20, the manufacturing form 1 shown in FIG. 1 is formed so that one leg 103 of a four-legged block 101, which has a leg and has a three-dimensional shape, is shaped upward. The upper three side surfaces of substantially the same shape, divided into three equal parts around each leg 103 and divided so as to cover one-third of the adjacent three leg parts 103 in the circumferential direction. It comprises a template 2, 3, 4 (not shown for the back) and a single bottom template 5.

  The side template 2, 3, 4 and the bottom template 5 in the mold 1, the flange portions 6 formed at the divided ends are abutted with each other, and the fixing through portion formed in the flange portion 6. 7 can be assembled into a hollow three-dimensional shape by being joined and fixed to a fastening member 8 such as a cotter and a cotter pin or a bolt and a nut.

  Reference numeral 9 denotes a disk-shaped end plate formed so that the tips of the mold portions 10, 11, 12, 13 corresponding to the four leg portions 103 of the four-leg block can be covered. The end plate 9 is provided so as to be fixed by the tips of the mold parts 10, 11, 12, 13 and a C-shaped clamp or other clamping means (not shown).

  A heat insulating layer 14 is formed on the outer surfaces of the side mold plates 2, 3, 4, the bottom mold plate 5, and the end plate 9.

  The heat insulating layer 14 is formed by blowing foamed synthetic resin material such as foamed urethane foam onto the outer surfaces of the side mold plates 2, 3, 4, the bottom mold plate 5 and the end plate 9 and foaming in situ. is there.

  The manufacturing process of the quadruped block 101 will be described with reference to the flowchart shown in FIG. First, a foamed synthetic resin material such as foamed urethane foam is sprayed on the outer surfaces of the side mold plates 2, 3, 4 and the bottom mold plate 5 and the end plate 9 to form insulative layers (see FIG. Step S1). Subsequently, the mold 1 is assembled (step S2). Assembling of the mold 1 is performed by positioning the fixing through portions 7 formed in the flange portions 6 of the side surface mold plates 2, 3, 4 and the bottom mold plate 5 using the positioning taper pins. The flange portions 6 of the respective template plates 2, 3, 4, and 5 are opposed to each other and fastened by using fastening members 8 such as bolts and nuts, cotters and cotter pins, or the like. Subsequently, the mold plate 1 is completed by attaching and closing the end plate 9 to the lower hollow head-shaped conical open end surfaces formed at three locations by joining the mold plates 2, 3, 4, and 5. .

  Thereafter, the ready-mixed concrete is filled (placed) into the mold 1 from the upper part of the completed mold 1 (step S3). In this case, the ready-mixed concrete is filled in the mold 1 whose outer surface is covered with the heat insulating layer 14, thereby preventing the outside air temperature from being influenced through the mold 1 in curing the ready-mixed concrete.

  Thereafter, after a period for solidification and curing in consideration of the weather conditions at the manufacturing site, it is confirmed that the solidified quadruped block 101 has reached a prescribed strength (step S4). After confirmation, the end plate 9 is separated from the upper mold A consisting of the side templates 2, 3, 4 and the lower mold B consisting of the bottom template 5 (step S5), and then the upper mold A is removed. By lifting it using a crane or the like, it is separated from the four-legged block 101, and the four-legged block 101 is completed (step S6). Thereafter, the mold frame 1 separated from the quadruped block 101 is released from the fixing of the flange portion 6 and divided into the template plates 2, 3, 4, and 5 for cleaning the template plates 2, 3, 4, and 5. Then, the heat insulation layer 14 is removed (step S7), and then stored for the next use or returned to the leasing source of the formwork 1.

  When placing concrete, a rod-shaped vibrating body is inserted into the ready-mixed concrete in the mold 1 to increase its fluidity, so that it spreads to every corner of the mold 1. After placing, if necessary, a spacing operation is performed to remove bubbles and water bubbles generated from the ready-mixed concrete. Also, before the ready-mixed concrete is completely solidified, the top end of the top part of the upwardly facing leg 103 is finished, and if necessary, the upper part of the mold 1 may be covered with a circular mold or sheet (not shown). Preferably, the heat insulating layer 14 is preferably formed in advance on the outer surface of the circular mold in this case.

  As described above, the embodiment corresponds to claim 1 and is a block manufacturing form 1 for filling the concrete and manufacturing the block 101, and the heat insulating layer 14 is formed on the outer surface of the form 1. As a result, the curing period of the block 101 can be shortened even in a low temperature environment such as a winter season or a cold region, and the block 101 with good quality can be formed. Curing can be done easily.

  Further, in the embodiment, corresponding to claim 2, the block 101 is a block having leg portions 103, so that the block 101 having a three-dimensional shape has a low temperature environment such as a winter season or a cold district. Even so, the curing period of the block 101 can be shortened, yet the block 101 with good quality can be formed, and such curing can be performed easily.

  Furthermore, in the said Example, according to Claim 3, the said heat insulation layer 14 shall be formed by spraying a foaming synthetic resin raw material on the outer surface of the said formwork 1, and making it foam in-situ, and, thereby, a heat insulation layer. Since the work space for forming the heat insulation layer 14 can be reduced by forming the four-dimensional structure 14 by a three-dimensional spraying method, the block 101 can be manufactured in a narrow place. Furthermore, compared with the case where the formwork is covered with a heat insulating sheet for curing the concrete, it is possible to separate the formwork 1 easily from the block 101 which has been solidified and finished, and the working time Can be shortened.

  Further, in the embodiment, corresponding to claim 4, a block manufacturing method for manufacturing the block 101 by filling the mold 1 with concrete, before filling the concrete into the mold, By forming the heat insulating layer 14 on the outer surface of the mold 1, the curing period of the block 101 can be shortened even in a low temperature environment such as a winter season or a cold region. It can be formed, and such curing can be easily performed.

  Further, in the embodiment, corresponding to claim 5, the block 101 is a block provided with leg portions 103, and a plurality of template plates 2 formed so as to be split so as to cover the outer surface of the block 101, Using the mold 1 provided with 3, 4, 5 and filling the interior of the mold 1 in which the mold plates 2, 3, 4 and 5 are joined together to form a hollow, this is hardened At the time of demolding, the mold plates 2, 3, 4 and 5 are released from each other and separated from the manufactured block 101, whereby a plurality of template plates 2, 3, 4, and 5 are separated. 5 is used for joining the concrete frame 1 filled with concrete with a curing sheet in the mold frame 1 that can be divided like the mold frame 1 of the block 101 having a three-dimensional shape. Or, before the concrete is solidified and the mold 1 is divided, it is necessary to remove the curing sheet covering the mold 1 No reason, it is possible to shorten the curing period of the block 101, it is possible to perform the curing of the block construction easily.

  Further, in the embodiment, corresponding to claim 6, the block 101 is a block 101 including a central portion 102 and a plurality of leg portions 103 projecting radially from the central portion 102. Using the mold 1 provided with a plurality of mold plates 2, 3, 4, and 5 formed so as to be separable so as to cover the outer surface, the mold plates 2, 3, 4, and 5 are joined to form a hollow combination In addition, when the mold 1 is filled with concrete and demolded after curing, the blocks 2, 3, 4, 5 are released from each other, and the manufactured block By separating from 101, a plurality of mold plates 2, 3, 4, and 5 are joined and used in a formwork 1 that can be divided like the formwork 1 of a multi-leg block 101. Covering the mold 1 filled with a curing sheet or covering the mold 1 before the concrete is solidified and the mold 1 is divided Since it does not require work to remove the curing sheet, it is possible to shorten the curing period of the block 101, it is possible to perform the curing of the block construction easily.

  Furthermore, in the said Example, according to Claim 7, the heat insulation layer 14 is made three-dimensionally by spraying a foaming synthetic resin material on the outer surface of the said formwork 1, and making it foam on-site and forming the heat insulation layer 14. By forming by the spraying method, it becomes possible to reduce the work space for forming the heat insulation layer 14, and thus the block 101 can be manufactured in a narrow place. Furthermore, compared with the case where the formwork is covered with a heat insulating sheet for curing the concrete, it is possible to separate the formwork 1 easily from the block 101 which has been solidified and finished, and the working time Can be shortened.

  In this embodiment, FIG. 3 shows a second embodiment of the present invention, and the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  The manufacturing form 15 shown in FIG. 3 has a top surface frame plate 16 formed so as to be able to be joined so as to cover the top surface, the side surface, and the bottom surface of a rectangular block C to be placed at a work site as a block. , Side frame plates 17, 18, 19, 20 and a bottom frame plate 21.

  A heat insulating layer 22 is formed on the outer surface of each of the frame plates 16, 17, 18, 19, 20, 21. The heat insulating layer 22 is formed by blowing a foamed synthetic resin material such as foamed urethane foam onto the outer surface of each of the frame plates 16, 17, 18, 19, 20, and 21 in-situ foaming.

  Also in the above configuration, since the block C is manufactured according to the flowchart shown in FIG. 2, the description of the manufacturing process is omitted, but at the stage of assembling the mold 15 (step S2), the upper part of the mold 15 In order to form the top side open portion for pouring concrete into the top plate, the top plate template 16 is not joined in the state where the other template plates 17, 18, 19, 20, 21 are joined together. Then, after pouring concrete into the mold 15 (step S3), the top plate 16 is joined to the mold 15 so as to close the top open portion.

  As described above, this embodiment has the same operations and effects as the first embodiment, corresponding to claims 1, 3, 4 and 7.

  In this embodiment, FIG. 4 shows a third embodiment of the present invention, and the same components as those in the first and second embodiments are denoted by the same reference numerals and the description thereof is omitted.

  FIG. 4 shows an example of a block applied to the third embodiment of the present invention. This block C <b> 2 is a hexapod block having a body part 22 and three leg parts 103 on each side of the body part 22.

  In the present embodiment, as shown in the first embodiment and the second embodiment, before the step of placing concrete on the assembled manufacturing mold, on the outer surface of the manufacturing mold for manufacturing the block C2. Then, the heat insulating member is foamed in situ to form a heat insulating layer. Thereafter, when the mold is removed after the concrete is hardened, the joining of the respective templates in the manufacturing formwork is released and separated from the manufactured block C2.

  As described above, this embodiment has the same operation and effect as the first and second embodiments, corresponding to claims 1 to 7.

  The present invention is not limited to the above-described embodiments, and the heat insulating layers 14 and 22 also have the template plates 2, 3, 4, 5, 16, 17, 18, 19, 20 in the respective embodiments. , 21 and the outer surface of the end plate 9 by blowing a foamed synthetic resin material and in-situ foaming, but each of the template plates 2, 3, 4, 5, 16, 17, 18, 19, 20, 21 and the end plate 9 A heat insulating panel formed along the outer surface is detachably attached to the outer surface of each template 2, 3, 4, 5, 16, 17, 18, 19, 20, 21 and end plate 9, May be used as the heat insulating layers 14 and 22. In this case, the quadruple block 101, the rectangular block C1, and the hexapod block C2 are completed. After the molds 1 and 15 are divided, the work for removing the heat insulation layers 14 and 22 is facilitated. About this heat insulation panel, it is good also as a foam synthetic resin panel which consists of foam synthetic resin materials, such as a polystyrene foam, a vacuum heat insulation panel provided with a vacuum heat insulation layer, an air heat insulation panel provided with an air heat insulation layer.

  Further, the present invention is such that the heat insulating layers 14 and 22 are formed on the outer surfaces of the manufacturing molds 1 and 15 for the blocks such as the quadruped block 101, the rectangular block C1 and the hexapod block C2 shown in the above embodiments. Is not limited to the quadruped block 101, the rectangular block C, and the hexapod block C2 as shown in the first to third embodiments, for example, a block having three legs 103, FIGS. Block having four legs 103 as shown in FIG. 14 (four-leg type block), block having five legs 103 as shown in FIG. 15, and six legs as shown in FIGS. Coastal wave and river wave suppression such as a block C3 having a plurality of legs 103 such as a block having a section 103 (hexad block), a block having eight legs 103, a block having ten legs 103, etc. , Various blocks used for revetment, especially in the field such as outdoors When the time and cost for transportation, such as is produced by Da設 the Nkurito was applied to a manufacturing mold of such large blocks, it exhibits an excellent effect of the simplification or the like of the cost reduction and workmanship.

It is a side view of the mold for manufacture of the block which shows 1st Example of this invention. It is a flowchart which shows the manufacturing process of a block same as the above. It is a side view of the mold for manufacture of the block which shows 2nd Example of this invention. It is a perspective view which shows the example of the block applied to 3rd Example of this invention. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a perspective view which shows the example of the block to which this invention is applied. It is a side view of the 4 leg type block which is the conventional block. It is a side view which shows the form for manufacture of the block in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Manufacturing form 2, 3, 4 Side plate 5 Bottom plate 14 Heat insulation layer 15 Manufacturing frame 16 Top plate 17, 18, 19, 20 Side plate 21 Bottom plate 22 Thermal insulation layer
101 4-legged block
103 Leg C1, C2, C3 block

Claims (7)

A block manufacturing form for manufacturing a block by filling concrete, wherein a heat insulating layer is formed on an outer surface of the form. The said block is a block provided with the leg part, The manufacturing frame for a block characterized by the above-mentioned. The form for manufacturing a block according to claim 1 or 2, wherein the heat insulating layer is formed by blowing foamable synthetic resin material onto the outer surface of the form and in-situ foaming. A block manufacturing method for manufacturing a block by filling concrete into a formwork,
A method of manufacturing a block, comprising: forming a heat insulating layer on an outer surface of the mold before filling the concrete into the mold. The block is a block with legs,
Using the mold frame provided with a plurality of mold plates that can be divided so as to cover the outer surface of the block, and filling the inside of the mold frame that is joined and hollowed by filling the concrete The block manufacturing method according to claim 4, wherein, when the mold is removed after being cured, the bonding between the templates is released and separated from the manufactured block. The block is a block composed of a central portion and a plurality of legs projecting radially from the central portion,
Using the mold frame provided with a plurality of mold plates that can be divided so as to cover the outer surface of the block, and filling the inside of the mold frame that is joined and hollowed by filling the concrete The block manufacturing method according to claim 4, wherein, when the mold is removed after being cured, the bonding between the templates is released and separated from the manufactured block. The method for manufacturing a block according to any one of claims 4 to 6, wherein a foamable synthetic resin material is sprayed on the outer surface of the mold to foam in situ to form a heat insulating layer.

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