EP1728942A1 - Chassis de moulage en resine thermoplastique - Google Patents

Chassis de moulage en resine thermoplastique Download PDF

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Publication number
EP1728942A1
EP1728942A1 EP04799687A EP04799687A EP1728942A1 EP 1728942 A1 EP1728942 A1 EP 1728942A1 EP 04799687 A EP04799687 A EP 04799687A EP 04799687 A EP04799687 A EP 04799687A EP 1728942 A1 EP1728942 A1 EP 1728942A1
Authority
EP
European Patent Office
Prior art keywords
reinforcement
main plate
reinforcement part
approximately rectangular
approximately
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04799687A
Other languages
German (de)
English (en)
Other versions
EP1728942A4 (fr
Inventor
Shigeki Kanao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanaflex Corp Co Ltd
Original Assignee
Kanaflex Corp Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kanaflex Corp Co Ltd filed Critical Kanaflex Corp Co Ltd
Publication of EP1728942A1 publication Critical patent/EP1728942A1/fr
Publication of EP1728942A4 publication Critical patent/EP1728942A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/05—Forming boards or similar elements the form surface being of plastics

Definitions

  • the present invention relates to a thermoplastic resin form, that can be used as a permanent form disposed at a predetermined interval to construct a concrete structure, concrete being poured into that interval and hardened and the permanent form being left with that concrete structure as it is, or that can be used as a form removable after the concrete structure is completed and reusable repeatedly.
  • the plastic form is nailed on a columnar reinforcement body such as frame wood for use.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a thermoplastic resin form having a sufficient strength to a pressure of poured concrete, capable of protecting its nail driving surface from being dented when a nail is driven into a columnar reinforcement body, and improving a finish appearance of concrete which makes contact with the form, while achieving reduction in its weight.
  • the present invention provides a form, which is made of a thermoplastic resin containing an inorganic material, for constructing a concrete structure comprising: a first main plate facing a poured concrete; a second main plate opposing the first main plate; and partition plates connecting the first and second main plates, wherein the partition plates construct (1) a plurality of first reinforcement parts having at least one kind of cross sectional shape selected from an approximately rectangular shape and an approximately truss shape in a width direction from right to left, and (2) a second reinforcement part having an approximately rectangular cross sectional shape of a width capable of supporting an outer edge of a head part of a nail at a portion where a columnar reinforcement body for supporting a form is to be nailed.
  • the hardness and softness of the form can be optimized and, further, heat resistance and impact resistance can be increased tremendously. Additionally, elongation and contraction due to changes in temperature can be reduced, and the shape can be stabilized.
  • the nail driving surface of the form can be prevented from being dented when the form is nailed on such a columnar reinforcement body as a vertical frame, and the finish performance of concrete making contact with the form can be improved. Additionally, when not only an approximately rectangular reinforcement part but also an approximately truss shaped reinforcement part are combined, the deformation resistance to the pressure of concrete can be intensified while maintaining light weight of the form.
  • a reinforcement part adjacent to the second reinforcement part is called a third reinforcement part
  • at least one sectional shape of two third reinforcement parts is rectangular in many cases.
  • this approximately rectangular third reinforcement part it is desirable to form an oblique rib which serves as a diagonal line of this approximately rectangular shape, and the oblique rib (the diagonal line) expands from a forward side in the nail driving direction to a faraway side or an approximately X-shaped rib which serves as two diagonal lines of this approximately rectangular shape. Forming this rib enables to prevent the form from being dented by driving nails more highly.
  • This indicated part is capable of securely preventing the form from being dented by driving nails.
  • This surface layer can protect the form from an impact of driving nails. Further, the release performance between the form and poured concrete can be improved.
  • Hollow parts (openings) between the partition plates may be filled with expanded resin bodies. Consequently, the strength and impact resistance of the form can be intensified while suppressing increase in weight of the form. Further, it is possible to eliminate the necessity of a cap for sealing the top and bottom opening of the form.
  • the direction of the opening in the internally hollow reinforcement part is called a vertical direction. Additionally, the arrangement direction of the reinforcement parts is called a lateral direction (right and left direction).
  • FIGS. 1, 2 show an example of the thermoplastic resin form of the present invention, used for concrete structure construction.
  • FIG. 1 is a schematic perspective view of the thermoplastic resin form and
  • FIG. 2 is a partially enlarged schematic perspective view of the form in FIG. 1.
  • FIG. 3 is a partially broken enlarged schematic perspective view showing the use condition of the thermoplastic resin form of the present invention.
  • a form 10 made of thermoplastic resin shown in FIGS. 1, 2 includes a first main plate 11 whose plan view shape is approximately rectangular and which makes contact with poured concrete and a second main plate 12 having an approximately same plan view shape as this first main plate 11 and opposing the first main plate 11 with a predetermined distance to the first main plate 11.
  • the right and left ends of the first and second main plates 11, 12 are connected with end plates 13, 13.
  • An circum-part 14 having a rectangular section formed by the main plates 11, 12 and the end plates 13, 13 is partitioned by partition plates 15 for connecting these main plates 11, 12 in the thickness direction, therefore a plurality of internally hollow reinforcement parts 30 exist in the width direction from the right to the left.
  • first hollow reinforcement parts the internally hollow reinforcement parts shaped from the main plates 11, 12 and the partition plates 15 are referred to as first hollow reinforcement parts.
  • the hollow reinforcement part in this indicated example, has an approximately rectangular section.
  • plural (four in this indicated example) columnar reinforcement bodies 40 (vertical frame wood having a square section in the indicated example) are attached thereto by driving nails 50.
  • the plural columnar reinforcement bodies 40 are disposed with an appropriate interval in parallel to the length direction of the hollow reinforcement part 30 on the back side of the poured concrete face (that is, the second main plate 12 side) and the columnar reinforcement bodies 40 are fixed onto the form 10 by driving the nails 50 from the side of poured concrete face (that is , from the side of the first main plate 11).
  • the sectional shape of the hollow reinforcement part 31 formed at a portion 52 where the columnar reinforcement body is to be nailed is formed into an approximately rectangular shape.
  • the follow reinforcement part 31 formed at the portion 52 where the columnar reinforcement body is referred to as second hollow reinforcement part.
  • the width of this second hollow reinforcement part 31 is designed to be as narrow as capable of supporting the outer edge of a head part 51 of the nail 50. That is, the partition plates 16, 16 for forming the second hollow reinforcement part 31 are approximately perpendicular to the main plates 11, 12 and a distance between these partition plates 16 and 16 is smaller than the width of the head part 51 of the nail 50.
  • the head part 51 of each nail 50 can be received by the partition plates 16, 16, so that the nail driving face can be prevented considerably highly from being dented.
  • the finish appearance of concrete making contact with the form can be improved remarkably.
  • the head part 51 of the nail 50 can be prevented from penetrating through the first main plate 11 located at a side in which the nail 50 is driven when the nail 50 is driven, thereby making it possible to securely prevent the installation strength of the columnar reinforcement body 40 from being reduced.
  • surface layers (resin layer) 20, 21 made of a soft or semi-hard resin similar to the main plates 11, 12 (preferably, common to the main plates in a monomer component; hereinafter, the same) are formed on the surfaces of the main plates 11, 12.
  • the surface layers 20, 21 can highly avoid a dent (deformation) and crack due to driving of the nails and further intensify release performance to poured concrete.
  • a linear mark (indicated part) 53 is drawn along the second hollow reinforcement part 31 on the first main plate 11 of the form 10 in order to indicate a nail driving portion 52.
  • the nails 50 can be driven into the second hollow reinforcement part 31 and received securely. Therefore, the speed and accuracy of the installation work of the columnar reinforcement body 40 can be improved.
  • the marks in the indicated example are formed by applying colored resin in a color different from the other portions to part of resin which constitutes the surface layer 20.
  • the indicating method is not restricted to any particular one, but it is permissible to apply various kinds of well known methods.
  • the pattern of the indicated part is not restricted to any particular one and various kinds of patterns can be applied.
  • the indicated part 53 may be a spot for indicating a nail driving portion 52 as shown in FIG. 7.
  • the indicated part is not restricted to any one formed with a different color from surrounding colors but may be formed of an uneven configuration (particularly concave part). Further, the present invention does not always need the indicated part.
  • the indicated part 53 may be formed on not only the first main plate 11, but also the second main plate 12. Positioning of the columnar reinforcement body 40 is facilitated.
  • third hollow reinforcement parts 32, 32 When hollow reinforcement parts on both sides of the second hollow reinforcement part 31 (hollow reinforcement part formed at the nail driving portion 52) in the form 10 of the present invention are called third hollow reinforcement parts 32, 32, one or both of the third hollow reinforcement parts 32, 32 are often formed so as to have an approximately rectangular cross sectional shape. Then, it is permissible to form an oblique rib or X-shaped rib into this approximately rectangular third hollow reinforcement part 32. The oblique rib or the X-shaped rib prevents the nail driving face from being dented further highly.
  • FIGS.. 8, 9 are partially enlarged schematic perspective views showing an example of form in which the oblique rib 22 or the X-shaped rib 23 is formed.
  • the oblique rib 22 shown in FIG. 8 is formed on a diagonal line of the rectangular shape of the third hollow reinforcement part 32.
  • the oblique ribs 22 are formed diagonally such that they expand from a forward side in the nail driving direction to a faraway side.
  • Such an oblique rib 22 is capable of increasing deformation resistance to nail driving pressure as compared to an oblique rib in an opposite direction.
  • the X-shaped rib 23 is formed on two diagonal lines of the rectangular shape.
  • the deformation resistance to a nail driving pressure can be made larger when the oblique rib 22 and/or the X-shaped rib 23 is formed in both the third hollow reinforcement parts 32, 32, it may be formed in a single third hollow reinforcement part 32. Further, it is permissible to form the oblique rib 22 in one hollow reinforcement part 32 and the X-shaped rib 23 in the other third hollow reinforcement part 32.
  • the oblique rib 22 and/or the X-shaped rib 23 may be formed in the first hollow reinforcement part 30 or the X-shaped rib 23 may be formed in the second hollow reinforcement part 31.
  • hollow reinforcement parts other than the second hollow reinforcement part 31 may be formed in a similar width to the second hollow reinforcement part 31.
  • the hollow reinforcement pats other than the second hollow reinforcement part 31, i.e. first hollow reinforcement part 30 and the third hollow reinforcement part 32 are referred to as "other hollow reinforcement part" in a lump.
  • part or all of other hollow reinforcement parts is recommended to be formed wider than the second hollow reinforcement part 31.
  • the third hollow reinforcement part 32 is formed in an approximately rectangular shape having a large width
  • part of the first hollow reinforcement part 30 is formed in an approximately rectangular shape having a large width
  • the remainder is formed in an approximately rectangular shape having a similar width to the second hollow reinforcement part 31.
  • Part or all of the other hollow reinforcement parts may be formed in other shape than the approximately rectangular shape (for example, approximately truss shape such as triangular, trapezoidal).
  • the approximately truss reinforcement part is effective for increasing the shape holding strength of the form 10 and effective for suppressing deformation of the form 10 due to a concrete pressure upon pouring concrete.
  • FIGS. 10 to 12 are partially enlarged schematic sectional views showing an example of the form in which part of the other hollow reinforcement part is formed in an approximately truss shape. More specifically, in the form 10 shown in FIG. 10, the first hollow reinforcement part 30 is approximately trapezoidal and in the form 10 in FIG. 11, the first hollow reinforcement part 30 is approximately triangular and in the form 10 in FIG. 12, the first hollow reinforcement part is formed in an approximately waveform shape by continuing triangles. Although in the form 10 in FIGS. 10 to 12, the third hollow reinforcement part 32 is approximately rectangular, the third hollow reinforcement part 32 also may be formed in an approximately truss shape as described above.
  • plan shape of the form 10 (the plan shape of main plates 11, 12) is not restricted to any particular one as long as there is no inconvenience in pouring concrete, it may be rectangular or square. Further, it may be deformed appropriately depending on the configuration of a construction work site. Further, it is permissible to form a cutout portion appropriately in order to combine forms.
  • the surface layers 20, 21 are not always necessary but may be formed on a single side of the main plates 11, 12 even if the surface layer is formed. When forming on a single side, it is recommended to form the surface layer 20 on the first main plate 11 which makes contact with poured concrete.
  • the surface layer 20 of this first main plate 11 can intensify a capacity of suppressing a dent (deformation) or crack by nail driving and further enhance the release performance to the poured concrete.
  • the opening ends (top and bottom ends of the form) of the internally hollow reinforcement parts 30, 31, 32 may be sealed suitably.
  • concrete can be prevented from invading into the form from the opening ends.
  • sealing means it is permissible to adopt a resin plate formed integrally with the form 10 or fit a cap (for example, resin made or rubber made cap) formed separately from the form to the opening end detachably or bond that cap to the opening end.
  • the detachable sealing means is further advantageous in following points. That is, the form 10 is cut out to a predetermined vertical length depending on the situation of concrete pouring site. In this case, if the detachable sealing means is adopted, the opening part can be sealed even after cutting. Further, the cap can be replaced when the cap is damaged.
  • the hollow parts 30, 31, 32 formed with the partition plates 15, 16 may be filled with an expanded resin body.
  • the strength and impact resistance of the form can be intensified while suppressing the weight. Further, it can achieve the role for the above-described sealing.
  • the form 10 of the present invention is made of a thermoplastic resin containing an inorganic material.
  • an inorganic material enables the hardness and softness of the form to be optimum and heat resistance and impact resistance to be increased tremendously. Further, elongation and contraction due to changes in temperature can be reduced thereby stabilizing the shape.
  • Examples of the inorganic material may include calcium carbonate, mica, talc, glass, carbon and the like.
  • the form 10 of the present invention may be filled with an expanded resin body.
  • this expanded resin body it is permissible to use various kinds of expanded resins, and examples thereof may include polypropylene foam, polystyrene foam, polyethylene foam, hard polyurethane foam, soft polyurethane foam, hard vinyl chloride foam, urea foam, phenol foam, acrylic foam, cellulose acetate foam and the like.
  • the surface layers 20, 21 may be formed on the form 10 of the present invention and the surface layer is made of a soft or semi-hard resin similar to the main plates 11, 12. Although it is preferable that this surface layer contains no inorganic material, the inorganic material may be contained as long as it is softer than the main plates 11, 12.
  • FIG. 13 is a schematic perspective view showing a situation in which some columnar reinforcement bodies 40 are installed along the direction of the opening while other columnar reinforcement bodies 41 are installed in perpendicular direction, on the form 10 of the present invention.
  • FIG. 14 is a schematic sectional view showing the same situation as FIG. 13. According to the examples shown in FIGS. 13, 14, four columnar reinforcement bodies 40 are installed along the direction of the opening while two columnar reinforcement bodies 41 are installed in the perpendicular direction.
  • the cross sectional shape of the columnar reinforcement body 40, 41 is not restricted to any particular one as long as it is capable of supporting the form and it is usually rectangular.
  • the material of the columnar reinforcement body 40, 41 is not restricted to any particular one as long as it can be nailed on the form and usually it is wooden.
  • FIG. 15 is a schematic sectional view for describing an example (typical example) of the use method of the form 10 of the present invention.
  • a panel body 60 including the columnar reinforcement body 40 and the form 10 is often disposed both inside and outside of a portion where the concrete structure is to be formed.
  • these panel bodies 60 may be fixed with a supporting tool including a form tie 62 or the like, which is a mold tightening metal tool.
  • concrete is poured between the panel bodies 60 and after it is cured and hardened, the supporting tools and the panel bodies 60 are removed so as to obtain a concrete structure 70. If such an engineering method is adopted, the form of the present invention can be used for at least one (usually both) of the panel bodies 60.
  • a through hole drilled in the panel body 60 by removing the form tie 62 is often filled with a plug made of a rubber or a thermoplastic resin.
  • a manufacturing method of the form 10 of the present invention is not restricted to any particular one but various well known methods can be adopted. It can be manufactured by forming according to such a well known forming method as extrusion or injection after inorganic material and thermoplastic resin are mixed appropriately (by agitation), for example. Particularly, the extrusion is effective in that the form can be formed continuously and the vertical dimension of the form can be set up freely.
  • both ends in the width direction from the right to the left of the form can contract in the thickness direction of the form.
  • it is recommendable to cut out a contracted portion An example thereof is shown in FIG. 16. According to this indicated example, an unnecessary contracted end part 24 is cut out along an appropriate position (dotted line 25). If the contracted portion 24 is cut out, a corner part at the end can be formed securely.
  • the method for forming the surface layers 20, 21 on the form is not restricted to any particular one, but it is permissible to adopt various well known methods.
  • a main-form-body composed of the main plates 11, 12, the end plate 13 and the partition plates 15, 16 and the surface layers 20, 21 may be formed integrally by simultaneous extrusion or it is permissible to form the main-form-body and the surface layers separately and bond them together.
  • a charging method of the resin expanded body is not restricted to any particular one. For example, after one end of both ends in the vertical direction (both ends in the direction of the opening) of the form is closed appropriately, the resin expanded body can be charged from another end. Further, expansion of the resin may be performed after charging, for example, the expandable resin may be expanded after it is charged from the other end. Further, it is permissible to close both ends in the vertical direction of the form, drill an appropriate hole at an appropriate position (for example, near the center) in the vertical direction of the form and charge expanded resin body or expandable resin through this hole.
  • the form 10 of the present invention is made of a thermoplastic resin containing an inorganic material and approximately rectangular and/or approximately truss shaped hollow reinforcement parts (first hollow reinforcement part) 30 are formed appropriately and further, an approximately rectangular hollow reinforcement part (second hollow reinforcement part) 31 having a smaller width than the head part 51 of the nail 50 is formed at the portion 52 where the columnar reinforcement body 40 is nailed. Consequently, the weight can be reduced and it has a sufficient strength to the pressure of poured concrete. Additionally, it can prevent the form from being dented when the columnar reinforcement body is nailed, so that the finish performance of concrete which keeps contact with the form can be improved.
  • the form of the present invention is applicable as a form for constructing a concrete structure.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP04799687A 2004-03-26 2004-11-08 Chassis de moulage en resine thermoplastique Withdrawn EP1728942A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004092741 2004-03-26
PCT/JP2004/016906 WO2005093189A1 (fr) 2004-03-26 2004-11-08 Chassis de moulage en resine thermoplastique

Publications (2)

Publication Number Publication Date
EP1728942A1 true EP1728942A1 (fr) 2006-12-06
EP1728942A4 EP1728942A4 (fr) 2008-11-19

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ID=35056246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04799687A Withdrawn EP1728942A4 (fr) 2004-03-26 2004-11-08 Chassis de moulage en resine thermoplastique

Country Status (5)

Country Link
US (1) US20070200050A1 (fr)
EP (1) EP1728942A4 (fr)
CN (1) CN100473795C (fr)
HK (1) HK1103113A1 (fr)
WO (1) WO2005093189A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2540933A1 (fr) * 2011-06-29 2013-01-02 Hofin GmbH Élément de coffrage en béton de type plaques

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
CN102787715A (zh) * 2012-04-24 2012-11-21 浙江凯雄科技有限公司 一种组合式塑料建筑模板及其加工工艺
CN102877642B (zh) * 2012-09-24 2015-08-05 张玉标 塑料建筑模板的制造方法
US20140319316A1 (en) * 2013-04-28 2014-10-30 Robert N. Bergman Hollow-core fiberglass sheet
CN104878919B (zh) * 2015-06-09 2017-04-12 林锋 加强型铝塑复合结构多层中空建筑模板
JP6946951B2 (ja) * 2017-11-09 2021-10-13 宇部興産株式会社 コンクリート供試体用型枠
JP2022515084A (ja) * 2018-12-17 2022-02-17 ビーエーエスエフ ソシエタス・ヨーロピア 後ろ側に少なくとも１つの型要素が備えられた型ライニングを含む型枠システム
CN111173280A (zh) * 2020-01-22 2020-05-19 广东亚旺模架技术有限公司 夹固式复合铝合金建筑模板系统

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DE2012032A1 (de) * 1970-03-13 1971-09-23 Massenberg, Gert, 4300 Essen Schalungstafel
JPH0319564Y2 (fr) * 1984-09-12 1991-04-25
JPH07290621A (ja) * 1994-04-25 1995-11-07 Takeo Abe プラスチック製段ボール
JPH0872123A (ja) * 1994-09-08 1996-03-19 Tokan Kogyo Co Ltd 合成樹脂製中空パネルおよび合成樹脂製中空パネル押出し成形用金型
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2540933A1 (fr) * 2011-06-29 2013-01-02 Hofin GmbH Élément de coffrage en béton de type plaques

Also Published As

Publication number Publication date
US20070200050A1 (en) 2007-08-30
CN100473795C (zh) 2009-04-01
EP1728942A4 (fr) 2008-11-19
CN1926293A (zh) 2007-03-07
HK1103113A1 (en) 2007-12-14
WO2005093189A1 (fr) 2005-10-06

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