JP2013133672A - Recyclable form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recyclable form that can enhance heat insulation by adding a new function to a recyclable form without spoiling functions of the recyclable form.SOLUTION: The recyclable form includes: a recyclable form body 1 having a contact surface 2 to come into contact with concrete to be cast, a non-contact surface 1a which is parallel with the contact surface 2 and positioned on the opposite side from the contact surface, and a plurality of ribs 3, 4, 5, and 6 projecting from the non-contact surface 1a to the opposite side of the contact surface 2 so as to reinforce the recyclable form body 1; a housing 7 housed between the ribs 5 and 5 and fixed to the side of the non-contact surface 1a; and a circuit 78 housed in the housing 7. The recyclable form also has, on the side of the non-contact surface 1a, a granular layer 30 including many particles 31 and a plate-like layer 40 located more on an outside-air side than the granular layer 30.

Description

  The present invention relates to a recycling-compatible form that makes it easy to grasp the state of use. Resin molds are representative of recyclable molds, but if the properties such as weight and price are suitable, the recycle molds of the present invention are not only resin molds, but also metal molds, especially aluminum molds and Includes iron formwork.

  Countermeasures for greenhouse gases typified by carbon dioxide are one of the important issues that human beings should aim for immediately. Carbon dioxide reduction should be implemented strongly while preventing economic stall. The applicant makes a new proposal in the field of formwork used to cure concrete.

  The main material of the formwork is a concrete panel (usually abbreviated as “Companion Panel”) that has been manufactured by cutting down the South Sea wood.

  As an alternative, resin molds have been developed and put into practical use. Some resin molds can be completely recycled and are attracting attention as next-generation molds.

  However, firstly, the unit price of the resin mold is about five times the unit price of the panel, secondly, the initial investment is great, and thirdly, there are problems that it cannot be depreciated at a single site. .

  In terms of cost, taking into account the number of times of use, the number of times that the panel is diverted (repeated use) is usually about 5 times, but the number of times that the resin mold is diverted is about 50 times, 10 times that of the panel. . If the unit price is simply divided by the number of uses, the unit price per use is about twice as high as that of the resin mold in the control panel. That is, the resin mold is superior to the control panel not only in terms of environmental load but also in terms of unit price per use.

  However, since there is no means for effectively managing the usage time when the resin mold is used for a long period of time, the resin mold has not yet been put into practical use.

  For example, the formwork is brought into the site and incorporated by the part of the building to be constructed, such as walls, beams, floors, etc., but after that, after the concrete is placed, the curing takes place and the mold is released Are very different.

  There is no technical means for performing management including such a difference in use time in the use portion. In reality, it is only used depending on the intuition of the field directors.

  In short, it is impossible to solve the problem only with the current resin molds, and it is necessary to add functions that were not previously available. And it is necessary to consider so that the function of a resin mold may not be impaired as a result of adding. The technology that can respond to such a request is not yet known.

  Furthermore, in order to reduce the influence of the outside air temperature when managing the temperature of the concrete in the mold, it is effective to provide a heat insulating layer on the opposite side of the mold from the contact surface with the concrete.

  Especially in cold regions in winter, Non-Patent Document 1 (Ministry of Land, Infrastructure, Transport and Tourism Minister's Secretariat, Technology Promotion Section, “Full Year Construction Promotion Council Home Page”, http://www.mlit.go.jp/tec/kanri/tsuunen/index .htm), it is also possible to insulate with a heat insulating plate between concrete panels.

However, in recyclable formwork, especially resin formwork, ribs for reinforcement are formed on the side where heat insulating material is arranged, and the surface is often not flat. There is a drawback of becoming.
JP 2004-332301 A Ministry of Land, Infrastructure, Transport and Tourism Minister's Secretariat Technology Promotion Section, "All-year Construction Promotion Council Home Page", http://www.mlit.go.jp/tec/kanri/tsuunen/index.htm

  An object of the present invention is to provide a recyclable formwork that can add a new function to the recyclable formwork without impairing the function of the recyclable formwork. In particular, the recycled formwork can be effectively insulated.

  The recyclable formwork according to the first invention is a contact surface that contacts the concrete to be placed, a non-contact surface that is parallel to the contact surface and is located on the opposite side of the contact surface, and a contact surface opposite to the contact surface. Projecting to the side and having a plurality of ribs that reinforce the recyclable formwork body, a housing that is housed between the ribs and fixed to the non-contact surface side, and is housed in the housing And a heat insulating layer is provided on the non-contact surface side of the recyclable formwork main body.

  In the recycling-compatible formwork according to the second invention, in addition to the first invention, the heat insulating layer is located on the non-contact surface side, and is located on the outside air side of the granular layer including a plurality of particles and the granular layer. A plate-like layer.

  In this configuration, not the plate-like layer but the granular layer exclusively contacts the non-contact surface. Here, even if unevenness due to ribs or the like exists on the non-contact surface, the particles constituting the granular layer can be positioned following the unevenness by changing the position of the particles according to the unevenness. Further, the plate-like layer is located outside the granular layer, so that the concrete in the contact surface is effectively insulated from the outside air by using the thermal resistance in the granular layer and the thermal resistance in the plate-like layer.

  According to the present invention, the granular layer can smoothly cope with the unevenness of the non-contact surface, and the concrete in the contact surface can be effectively insulated from the outside air by the respective thermal resistances of the granular layer and the plate-like layer.

(Embodiment 1)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of the recyclable formwork according to Embodiment 1 of the present invention as viewed from the contact surface side, and FIG. 2 is the recyclable formwork according to Embodiment 1 of the present invention as viewed from the non-contact surface side. It is a perspective view. 1 and 2 show a state before the housing is attached.

  FIG. 3 is a perspective view of the recyclable formwork according to the first embodiment of the present invention as seen from the non-contact surface side. Unlike FIG. 2, FIG. 3 shows a state where a housing is attached.

  As shown in FIG. 1, the recyclable formwork body 1 of the present embodiment is generally rectangular, and the contact surface 2 that comes into contact with the concrete when placing the concrete is separated from the contact surface 2 to the non-contact surface 1a. A plurality of separator holes 2a formed so as to be able to pass through 18 (see FIG. 7) are opened for each predetermined dimension. The external dimensions of the recyclable formwork body 1 should be in accordance with the dimensions of the concrete panel. For example, the short side is about 60 cm and the long side is about 90 cm. Of course, these numerical values are merely examples, and various changes can be made.

  These separator holes 2a are formed in a factory that manufactures the recyclable mold body 1 and the accuracy thereof is very high. When the separator 18 is not inserted and not used, a plug (not shown) made of resin (eg, polypropylene) is provided in the separator hole 2a. And, it is preferable to prohibit the opening of holes other than the separator hole 2a at the site.

  In this regard, in a normal field where concrete panels (wooden) are used, a site worker drills a hole in a concrete panel that has not been drilled, but such work only requires time and labor. In addition, there are often problems in the accuracy of the position and dimensions of the opened holes.

  In addition, when a concrete panel once perforated with a certain size system is reused at another location, the concrete panel becomes full of holes, making it difficult to use, and obstructing holes that are opened but not used are bothered with plugs. Since this is cumbersome, the concrete panel is likely to be used in an unfavorable state with the holes left open.

  According to this embodiment, there is no such drawback. Since the recycling-compatible formwork of this embodiment has a short side of 60 centimeters and a long side of 90 centimeters, the interval t1 from the long side to the separator hole 2a is 15 centimeters. Therefore, when the recycling-compatible formwork main bodies 1 of FIG. 1 are arranged side by side, the interval between the separator holes of the adjacent recyclable formwork is 30 centimeters.

  The recyclable mold body 1 is not simply a plate. That is, the long edge rib 3 and the short edge rib 4 having the same height are extended from the short side and the long side downward in FIG. 1 (from the contact surface 2 to the non-contact surface 1a side). These ribs 3 and 4 have clip holes 3a and 4a penetrating the ribs 3 and 4 in the plate pressure direction at intervals t3: 10 cm, intervals t4: 30 cm, and intervals t5: 20 cm. It has been.

  Adhere the long sides or short sides of the adjacent recycling-compatible formwork together, insert U-shaped clips into these clip holes 3a, 4a, and place the long sides or short sides adjacent to each other on the outside These recycling-compatible molds can be connected to each other by clipping from (see also FIG. 4).

  When the recyclable formwork main body 1 is placed so that the non-contact surface 1a faces upward, FIG. 2 is obtained. That is, in addition to the long side edge rib 3 and the short side extending rib 4 described above, the long side reinforcing rib 5 and the short side reinforcing rib 6 are provided so that the maximum height is equal to the maximum height of these ribs 3 and 4. A plurality of them are formed, and the overall strength of the recyclable formwork body 1 is increased.

  As can be seen from FIGS. 2 and 3, there is a space between the ribs. Therefore, in this embodiment, the housing 7 is attached and fixed between the ribs.

  Although details will be described later, a circuit is accommodated in the housing 7. The recyclable formwork body 1 is in contact with ready-mixed concrete. Also, when the concrete becomes abnormally hot, water may be applied to the formwork at the site to cool the formwork. Recycling formwork may get wet on or on snowy days. Therefore, the casing 7 covers the circuit and protects the circuit.

  Here, the important point about the housing 7 is that the highest point of the housing 7 on the non-contact surface 1a side is equal to or lower than the height of the highest point of the upper ends of the ribs 3, 4, 6, and 7. The body 7 is a point which never protrudes on the opposite side of the contact surface 2 rather than the long edge rib 3 or the short edge rib 6.

  In short, even if the housing 7 is attached, the thickness of the recyclable formwork main body 1 does not change. Therefore, when the recycling-compatible formwork body 1 is stacked in the thickness direction, such as when the recyclable formwork body 1 is transported by truck or stored in a stock yard, it is the same as before the housing 7 is attached. Can be stacked in the state.

  Further, when the recyclable formwork body 1 is assembled and the steel pipe is pressed and positioned, the casing 7 does not touch the steel pipe, and a sufficient pressing force can be obtained. The circuit housed in is not damaged.

  FIG. 4 is an elevational view showing a state where two recyclable molds in Embodiment 1 of the present invention are connected with their long sides in contact with each other. In FIG. 4, unlike the case of FIG. 1, the long side is 180 centimeters. In the manner described above, the adjacent recycling-compatible form bodies 10 and 11 are connected to each other using the U-shaped clip 12.

  In addition, even if it is a thing of the size of FIG. 4, it is sufficient to attach one housing | casing 7 normally with respect to one of the recyclable formwork main bodies. However, this does not mean that the case where a plurality of housings are attached to one recycling-compatible formwork is excluded from the protection scope of the present invention. Further, if the detection accuracy is not strictly examined, a recycling-compatible form without a housing may be used in combination.

  FIG. 5 is a perspective view showing the handling of the temperature sensor in the first embodiment of the present invention. In this embodiment, a thermistor is used as the temperature sensor. A thermistor (not shown) is thermally coupled to the square washer 13 and integrated.

  The output terminal of the thermistor is connected to the wiring 15 and pulled out from the square washer 13. The reason for using the washer as a square is to avoid the rotation of the screw. In order to allow the separator 18 to be inserted into the square washer 13, an insertion hole 14 having the same diameter as the separator 18 or slightly larger in diameter is formed in the center of the square washer 13.

  Although not appearing in FIG. 3, as shown in FIG. 6, the periphery of the separator 2 a is raised in a quadrangular shape so that the square washer 13 can be inserted, and the surrounding wall 16 is formed. A portion is cut out so that the wiring 15 can be pulled out.

  FIG. 7 is a cross-sectional view showing a mounting portion of the separator according to Embodiment 1 of the present invention. The pair of recyclable formwork bodies 1 are supported so as to face each other at a predetermined interval, but before that, the P-con 19 is screwed into the male screw portions 18 formed at both ends of the separator 18.

  Then, the female thread portion 18 is passed so that the right end surface of the P-con 19 in FIG. 7 contacts the contact surface 2 of the recyclable mold body 1. As a result, the female thread portion 18 passes through the separator hole 2a of the recyclable mold body 1 and the insertion hole 14 of the square washer 13, and protrudes further outward from the non-contact surface 1a.

  The distal end portion of a fastening bracket 20 usually called a foam tie nut is screwed into the distal end portion of the projecting male screw portion 18a and fixed.

  Here, the separator 18 is in contact with the concrete placed between the recyclable formwork bodies 1 and 1 (particularly also in the central portion), and is thermally coupled to the concrete.

  Further, the separator 18 is made of a material having high thermal conductivity such as iron, and the square washer 13 is in close contact with the separator 18, so that the temperature sensor (the thermistor in the present embodiment) is eventually passed through the separator 18 and the like. And thermally coupled. For this reason, this temperature sensor can directly measure the temperature change inside the concrete.

  Next, attachment of the housing 7 of this embodiment will be described with reference to FIGS. Needless to say, the following mounting procedure is merely an example, and the present invention also includes a case where a known means such as a screw is used instead.

  FIG. 8 is a plan view of the vicinity of the housing according to Embodiment 1 of the present invention, and FIG. 9 is a cross-sectional view taken along the line AA in FIG. As shown in FIG. 8, in the vicinity of the position where the square washer 13 including the temperature sensor is attached, the housing 7 is attached to the space between the long side reinforcing ribs 5, 5.

  At this time, as shown in FIG. 9, the locking claw 5 a protrudes downward from the inner surface of the long side reinforcing rib 5, and the upper end of the housing 7 faces downward by the tip of the locking claw 5 a. Press. In this way, the casing 7 can be fixed to the recyclable formwork body 1 by pushing the casing 7 between the locking claws 5a without using screws or the like.

  The recyclable mold body 1 is typically made of a recyclable resin. However, it may be made of aluminum or iron. In any case, when the recyclable formwork main body 1 is to be recycled as a result of use, it is necessary to remove the housing 7. This is because impurities are contained if recycled with the housing 7 attached. In this case, it is only necessary to break the locking claw 5a with an appropriate tool and remove the housing 7.

  If the layout shown in FIG. 8 is adopted, an output signal from a temperature sensor in the vicinity of the casing 7 can be input to the circuit of the casing 7 using wiring. The number of signal input paths to the circuit of the housing 7 may be increased or decreased as necessary. Usually, it is considered sufficient to measure the temperature at only one point per one recyclable formwork main body, but it is possible to increase the number of measurement points to two or more.

  Next, a configuration example of the housing 7 will be described. FIG. 10 is a partially cutaway perspective view showing the housing in the first embodiment of the present invention.

  The casing 7 includes a cover 71 that surrounds all elements and protects the inside from rainwater and the like, and a flange 72 that extends outward from the cover 71 and facilitates attachment. A base plate 73 is fixed in the cover 71, and a substrate holding box 74 is fixed to the base plate 73.

  Further, each surface of the substrate holding box 74 is oriented in consideration of the orientation of the recyclable formwork body 1, and a first substrate 75 on which the inclination sensor 76 is mounted is mounted on a predetermined surface. . In the cover 71, a second substrate 77 on which the communication circuit 78 is mounted is mounted at a position away from the substrate holding box 74.

  Of course, the configuration example of FIG. 10 is merely an example, and various modifications are possible.

(Embodiment 2)
FIG. 11 is a cross-sectional view of a recycling-compatible mold according to Embodiment 2 of the present invention.

  In the second embodiment, only differences from the first embodiment will be described. That is, portions not mentioned in the second embodiment are the same as those in the first embodiment.

  The second embodiment is different from the first embodiment in that a heat insulating layer is provided on the recycling-compatible formwork 1.

  As described in the first embodiment, the non-contact surface 1a side of the mold body 1 is usually uneven, such as the short-side reinforcing rib 6 provided, and the short-side reinforcing rib 6 itself There may be dimensional errors, and such irregularities are not always constant.

  Therefore, in providing the heat insulating layer on the non-contact surface 1a side, in this embodiment, the granular layer 30 close to the non-contact surface 1a side and the plate-like layer 40 adjacent to the granular layer 30 and in contact with the outside air are provided. Of course, additional layers may be provided between these layers 30 and 40.

  The granular layer 30 is constituted by a set of a large number of particles 31. The shape of the particles 31 is a sphere having the same diameter in FIG. 11, but may be a polyhedron or other known shapes. In addition, particles 31 of various sizes (for example, diameters) of large and small sizes are arranged, heat insulation is performed with large-diameter particles, and further, small-diameter particles are arranged between large-diameter particles so as to fill gaps and improve heat insulation efficiency. It is also suitable to make it.

  The plate layer 40 includes a plate body 41. Of the plate body 41, the surface in contact with the granular layer 30 is a pressing surface that presses the granular layer 30 toward the non-contact surface 1a, and the opposite surface is an exposed surface 41b in contact with the outside air. In addition, a flange 42 projects outwardly on the side of the plate body 41, and the plate body 41 seals the granular layer 30 by engaging the flange 42 with the short edge rib 4.

  Here, the synthetic resin foam constituting the particles 31 and the plate pair 41 can be arbitrarily configured as long as it can exhibit sufficient heat insulation.

  For example, a polystyrene foam, a polyethylene foam, a polypropylene foam, a polyurethane foam, a phenol resin foam, or the like can be used. Among these, polystyrene foam is preferred because of its low water absorption and excellent heat insulation.

  The recyclable formwork of the present invention can be suitably used for managing the number of times each recyclable formwork is used, for example, in the field of renting or leasing the recyclable formwork.

The perspective view which looked at the recycling corresponding | compatible formwork in Embodiment 1 of this invention from the contact surface side The perspective view which looked at the recycling-compatible formwork in Embodiment 1 of the present invention from the non-contact surface side The perspective view which looked at the recycling-compatible formwork in Embodiment 1 of the present invention from the non-contact surface side The elevation view which shows the state which connected the two recyclable formwork in Embodiment 1 of this invention with the mutual long side contacting The perspective view which shows the handling of the temperature sensor in Embodiment 1 of this invention Plan view of a square washer in Embodiment 1 of the present invention Sectional drawing which shows the attachment part of the separator in Embodiment 1 of this invention The top view of the housing | casing vicinity in Embodiment 1 of this invention FIG. 8A-A sectional view 1 is a partially cutaway perspective view showing a housing according to Embodiment 1 of the present invention. Sectional drawing of the recycling corresponding | compatible formwork in Embodiment 2 of this invention

1, 10, 11 Recyclable mold body 1a Non-contact surface 2 Contact surface 2a Separator hole 3 Long edge rib 3a, 4a Clip hole 4 Short edge rib 5 Long side reinforcement rib 6 Short side reinforcement rib 7 Housing 12 U Character clip 13 Square washer 14 Insertion hole 15 Wiring 16 Enclosure wall 17 Groove 18 Separator 18a Male thread 19 P-con 20 Fastening fitting 30 Granular layer 31 Particle 40 Plate layer 41 Plate body 41a Press surface 41b Exposed surface 42 Flange 71 Cover 72 Flange 73 Base plate 74 Substrate holding box 75 First substrate 76 Inclination sensor 77 Second substrate 78 Communication circuit

Claims (2)

A contact surface that contacts the concrete to be placed; a non-contact surface that is parallel to the contact surface and located on the opposite side of the contact surface; and projects from the non-contact surface to the opposite side of the contact surface; A recyclable mold body having a plurality of ribs for reinforcing the frame body;
A housing housed between the ribs and fixed to the non-contact surface side;
A circuit housed in the housing,
A recyclable formwork, wherein a heat insulating layer is provided on the non-contact surface side of the recyclable formwork body. The recycling-compatible form according to claim 1, wherein the heat insulating layer includes a granular layer that is located on the non-contact surface side and includes a plurality of particles, and a plate-like layer that is positioned on the outside air side of the granular layer. .