WO2004060623A2 - Re-usable non-metallic construction forming system - Google Patents

Re-usable non-metallic construction forming system Download PDF

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Publication number
WO2004060623A2
WO2004060623A2 PCT/US2003/039745 US0339745W WO2004060623A2 WO 2004060623 A2 WO2004060623 A2 WO 2004060623A2 US 0339745 W US0339745 W US 0339745W WO 2004060623 A2 WO2004060623 A2 WO 2004060623A2
Authority
WO
WIPO (PCT)
Prior art keywords
recited
retention mechanism
forms
fonn
forming system
Prior art date
Application number
PCT/US2003/039745
Other languages
French (fr)
Other versions
WO2004060623A3 (en
Inventor
Hatam Hannawa
Wael Hannawan
Huang Chin Sheng
Original Assignee
Architectural Concrete Creations
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 Architectural Concrete Creations filed Critical Architectural Concrete Creations
Priority to JP2005508586A priority Critical patent/JP2006521477A/en
Priority to BR0317900-1A priority patent/BR0317900A/en
Priority to CA002512157A priority patent/CA2512157A1/en
Priority to AU2003297053A priority patent/AU2003297053A1/en
Priority to MXPA05007106A priority patent/MXPA05007106A/en
Priority to EP03814770A priority patent/EP1578572A2/en
Publication of WO2004060623A2 publication Critical patent/WO2004060623A2/en
Publication of WO2004060623A3 publication Critical patent/WO2004060623A3/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00Forming or shuttering elements for general use
    • E04G9/02Forming boards or similar elements
    • E04G9/05Forming boards or similar elements the form surface being of plastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/0064Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/34Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/346Manufacture of moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/34Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/348Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/02Connecting or fastening means for non-metallic forming or stiffening elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • E04G17/045Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements being tensioned by wedge-shaped elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • E04G17/047Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements simultaneously tying two facing forms
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00Forming or shuttering elements for general use
    • E04G9/10Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00Forming or shuttering elements for general use
    • E04G9/02Forming boards or similar elements
    • E04G2009/028Forming boards or similar elements with reinforcing ribs on the underside
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G2017/0646Tying means; Spacers ; Devices for extracting or inserting wall ties made of a flat strip, e.g. of metal

Definitions

  • Poured forming systems are well known for the formation of building structures including foundations, walls, floors, and roofs.
  • a form is created for receiving a flowable, hardenable material, most typically a cementito s material such as concrete.
  • the form includes a face surface for contacting the flowable material.
  • the separated water is absorbed into the wooden form, causing water damage to the wooden form. Furthermore, water stains the front surface of the structure before the structure can completely cure. Additionally, the wooden form is often destroyed upon separation from the flowable material, but includes the advantage of low cost.
  • aluminum forms have been used in place of the wooden forms.
  • An advantage of the aluminum forms is that they may include one of a limited number of patterns lightly etched into the face, such that when the flowable material contacts the etched surface, it takes on the mirror image of the pattern.
  • aluminum forms have a number of significant disadvantages. For example, the forms are heavy, complicating assembly and disassembly as well as transport. Further, while reusable, the etched patterns are easily subject to damage, and may be readily gouged or otherwise defaced. Moreover, the forms are very expensive to manufacture, particularly with respect to providing a consistent pattern from form to form as they are secured together. Yet a further problem is that only a very limited number of simple, lightly etched patterns may be used, which does not extend more than a slight percentage of the total thickness of the form.
  • a thin form liner that is disposed between the face of a traditional form and the flowable material.
  • the form liner typically includes a lightly etched pattern. Once the material has cured and the form is removed, the liner is then stripped away from the flowable material.
  • Such a liner is subject to a number of major problems. In view of its limited thickness, it readily expands or contracts because of changes in temperature. As a result, the liners can only be used in a veiy limited temperature range without damage to the liners or aberrations to the pattern itself. Further, even when used at optimal temperatures, many flowable materials such as type 3 concrete with accelerators create high heat during the curing process, which damages the liner.
  • the liners are also difficult to secure to the face of the form, which results in non-optimal pattern distribution from form to form.
  • only a limited number of thinly etched patterns may be used.
  • the use of a deeper pattern is often not possible without damage to the liner or at the very least significant distortion to the pattern.
  • the present invention relates to a form for use with a flowable construction material.
  • the form includes a base portion having a front and rear face and a reinforcement matrix secured to the rear face. At least the base portion of the form is a non-metallic, non-wooden material.
  • FIG. 1 A is a front view of a form in accordance with the present invention.
  • FIG. IB is a cross-sectional planar view of the form taken along lines 1 A-
  • FIG. 2A is a rear view of a form in accordance with the present invention.
  • FIG. 2B is a cross-sectional planar view of the form taken along lines 2A-
  • FIG. 3 is a perspective view of an alternate embodiment of the form in accordance with the present invention.
  • FIG. 4 is a perspective view of the alternate form in accordance with the present invention.
  • FIG. 5 is a perspective view of a further alternate embodiment of the form in accordance with the present invention.
  • FIG. 6 is a perspective view of the further alternate form in accordance with the present invention.
  • FIG. 7 is a rear view of a wall forming system in accordance with the present invention.
  • FIG. 8 is a perspective view of the wall fo ⁇ ning system, showing a portion of the retention mechanism in accordance with the present invention.
  • FIG. 9 is a perspective view of the wall fo ⁇ ning system, showing an alternative embodiment of the retention mechanism.
  • FIG. 10 is a perspective view of the wall forming system, showing a further alternative embodiment of the retention mechanism.
  • FIG. 11 is a perspective view of a finished wall using the form system of the present invention.
  • FIG. 12 is a perspective view of a hollow wall forming system using opposing sets of forms separated by spacers for receiving flowable material.
  • FIG. 13 is a different perspective view of the system of Figure 12.
  • FIG. 14 is a perspective view of an isolated alternate spacer in accordance with the present invention.
  • FIG. 15 is a perspective view of the wall fonning system, illustrating the alternative spacer in an installed position.
  • FIG. 16 is a side view of a further alternate spacer using an opening through the faces of opposing forms in accordance with the present invention.
  • FIG. 17 is a perspective view of a curb form in accordance with the present invention. DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Figures 1 A and 2 A illustrate front and rear faces 22, 24 of an imiovative constraction form 20 made from a non-metallic material
  • Figures IB and 2B are taken along lines 1A-1 and 2A-2A, respectively, to show a top and bottom view of form 20.
  • Figure 1 A illustrates front face 22 of form 20, with a series of cavities 26 extending inwardly from the otherwise generally planar front face
  • cavities 26 may also extend outwardly from front face 22. As discussed in greater detail below, cavities 26 can be deep. Front face 22 includes a base portion 28 of form 20. In significant contrast with the prior art, cavities 26 may extend on the order of one-half to three-quarters or even more of the total overall thickness "T" of form 20. Figures IB and 2B illustrate an example of the depth of cavities 26.
  • the illustrated fonn 20 is intended to mimic rocks extruding from rear surface 24 of fonn 20.
  • Cavities 26 optionally include holes 27 that extend from front face 22 through rear face 24. It can be appreciated that holes 27 are not limited to being disposed within cavities 26 and may be disposed anywhere along front face 22 of form 20. However, holes 27 are not always desired since they can affect the appearance of the finished product.
  • the rear surface 24 of form 20 includes an integral honeycombed reinforcement matrix 30 which extends away from rear face 24.
  • Rear face 24 also includes base portion 28 of form 20.
  • reinforcement matrix 30 includes a plurality of horizontally and vertically extending braces 32, 34 integral with base portion 28 of form 20.
  • cavities 26 may intersect braces 32 or 34, thereby providing cavities 26 with additional structural support.
  • braces 32, 34 are equally spaced from each other. However, as shown in
  • braces 32, 34 may be non-uniform in regions where additional rigidity or support is required to minimize unwanted movement of fonn 20 when in an installed orientation.
  • braces 32, 34 representing the outer periphery of the form 20 are wider in dimension "A" than the inner braces.
  • braces 32, 34 representing the outer periphery of form 20 may also be of the same thickness as inner braces. It is also envisioned that additional bracing, such as members extending diagonally between select horizontal or vertical braces, maybe helpful for some applications. For example, additional bracing may be required when a very deep pattern is used, such as one that extends inwardly from the front face 22 to a significant percentage of the total thickness "T" of form 20.
  • braces 32, 34 may all be modified as desired to provide the optimal balance between weight and necessary rigidity of fonn
  • Figures 3 and 4 illustrate an alternate embodiment of the present invention.
  • Reinforcement matrix 30' of forms 20' include webbings 35 and supports 37 and 37'.
  • Supports 37 and 37' are intermittently spaced between sections of webbings 35.
  • the webbings 35 include orifices 33.
  • the orifices 33 provide webbings 35 with a cushion to protect form 20' against inadvertent side impacts, especially during assembly and disassembly of forms 20' when webbings 35 may be physically struck. In essence, orifices 33 absorb a substantial amount of the force exerted on reinforcement matrix
  • webbings 35 allow for weight reduction of fonn 20'. As illustrated, webbing 35 may be positioned in close proximity to another webbing 35 for additional cushioning. Moreover, placing two webbings 35 in close proximity to one another allows form 20' to be divided into sub-units (not shown) if desired.
  • each sub-unit may include at least one webbing 35. It should be noted that while Figures 3 and 4 illustrate orifices 33 varying in size, orifices 33 may also be of unifo ⁇ n size.
  • Figure 5 illustrates form 20' as having a staggering vertical outer periphery.
  • the staggering vertical outer periphery of fonn 20' may assist a user when joining two or more forms 20' together.
  • the staggering outer periphery of form 20' provides for easier alignment of adjoining forms 20', than the straight outer periphery of forms 20.
  • the staggering outer peripheries of fo ⁇ ns 20' provides a greater retaining force of forms 20'.
  • Figure 6 illustrates adjoining forms 20' positioned to form an interlocking unit. Securement of forms 20 and 20' are discussed in greater detail below.
  • reinforcement matrix 30' of form 20' may be interchanged with reinforcement matrix 30 of form 20.
  • openings 40 are located between recess 45.
  • Recesses 45 are discussed in greater detail below.
  • horizontal braces 32 associated with top 44 and bottom 46 of form 20 may also include openings 40, and recesses 45, spaced along each horizontal brace 32.
  • Openings 40 assist in constructing an overall wall fo ⁇ ning system 50 in accordance with various embodiments of the present invention as shown in the
  • Wall forming system 50 includes a plurality of forms 20. Fonns 20 are aligned such that openings 40 of adjacent forms 20 line up with each other when forms 20 are being assembled into wall fo ⁇ ning system 50. There is no requirement that openings 40 be equally spaced apart. In practice it has been found to be most beneficial to have openings 40 closely spaced together in the center of form 20 and more widely spaced near top 44 and bottom 46 of form 20, as best illustrated in
  • a series of male members such as bolts 52
  • Bolts 52 can be inserted through mating openings 40 of adjacent fo ⁇ ns 20 and then secured.
  • bolts 52 are threaded, allowing a nut (not shown) to be threaded onto bolts 52.
  • a conventional fastener can be time consuming to assemble and disassemble.
  • FIGS 7 and 8 illustrate one embodiment of the present invention.
  • a friction based securement member illustrated as a friction based wedging member 54 is used as part of a retention mechanism 56.
  • Retention mechanism 56 further includes bolts 52.
  • Wedging member 54 is wedged between base portion 28 of fonn 20 and bolt 52.
  • wedging member 54 is thinnest at one end and thickest at an opposing end to fonn a ramp-lilce member.
  • wedge member 54 is wider at the thicker portion and narrower at the thinner portion. Applying a force at the top of wedging member 54, in a direction generally perpendicular to the desired movement between bolt 52 and form 20, forces the thicker portion of wedging member 54 to lodge between bolt 52 and form 20.
  • wedging member 54 is such that a person in the field will be able to easily identify the proper orientation of wedging member 54 for installation. However, on the other hand, the design of wedging member 54 does not prevent installation of wedging member 54 when wedging member 54 is rotated ISO degrees. If such an orientation of wedging member 54 is desired, then the installer may simply hold wedging member 54 in place while hammering.
  • Wedging member 54 is concave to facilitate its insertion between bolt 52 and base portion 28 of form 20. The concave shape of wedging member 54 also facilitates the application of force on the bottom portion of wedging member 54 to dislodge wedging member 54 once wall foiming system 50 is to be disassembled.
  • Wedgmg member 54 may be formed of a material having characteristics which allow wedging member 54 to compress under load without damaging either fonn 20 or bolt
  • wedging member 54 may be formed of the same material as form 20, while bolt 52 may typically be metallic, and preferably fo ⁇ ned from an iron-based material. In a further alternative embodiment, wedging member
  • Form 20 provides compressive capabilities to further assist in retaining bolt 52 and wedging member 54.
  • braces 32, 34 are offset from openings 40 and reinforcement mechanism 56 to permit the use of either wedging member 54 or traditional threaded connections.
  • FIG. 9 illustrates an alternative retention mechanism 56' that may be practiced with the present invention.
  • wedging member 54' is integral with form 20. To avoid interference with bolts 52, wedging members 54' are only disposed on a common side of each fonn 20.
  • Retention mechanism 56' includes an opening 58 along the lateral extent of wedging member 54', generally equally spaced from an upper end 60 and a lower end 62. Outer periphery of opening 58 is preferably less in diameter than bolt 52 to be inserted, creating a friction fit as
  • wedging member 54' is inserted into bolt 52.
  • the material on either side of opening 58 provides resistance and support to opening 58, facilitating retention of bolt 52.
  • the present invention is not limited to the retention mechanisms disclosed above, but can be practiced with other approaches to integrating wedging member 54' to form 20.
  • the portion of wedging ⁇ member 54' adjoining an opening 40 may be thinner than a portion spaced away from opening 40 along the path of travel of bolt 52.
  • wedging member 54' may be integrated with form 20 in any manner so long as wedging member 54' is integrated with fonn 20 and friction is used to retain bolt 52, while permitting easy removal once wall forming system 50 is to be disassembled.
  • FIG 10 is a further alternative embodiment of retention mechanism 56" that may be practiced with the present invention.
  • Retention mechanism 56" includes a wedging member 54" and bolt 52.
  • Wedging member 54" maybe wedged between base portion 28 of form 20 and bolt 52 as in Figure 8, or wedging member 54" may be integral with fonn 20 as in Figure 9.
  • Wedging member 54" is similar to wedging member 54 and wedging member 54' however, wedging member 54' ' further includes a lip 55 at the thicker portion. Lip 55 provides a wider surface than wedging member 54 and 54' on which to apply force during installation.
  • Wall fo ⁇ ning system 50 illustrated in the Figures is often used for retaining walls of the type illustrated in Figure 11.
  • Figure 11 illustrates a finished wall 80 where the material being retained forms the opposite half of the mold for the flowable material.
  • Wall forming system 50 is set up, the flowable material is poured between opposing molds, permitted to cure into wall 80, and then wall fonning system 50 is disassembled.
  • the pattern shown in Figure 11 is of rocks jutting out from a base, which is much more defined and detailed then patterns formed by conventional systems.
  • the pattern in Figure 11 is for illustration purposes and that wall fonning system 50 may be of a different pattern
  • Figures 12 and 13 illustrate a second pattern that may be used in accordance with the present invention.
  • forms 20 are positioned adjoining to each other in wall forming system 50. However, forms 20 may not necessarily be adjoining.
  • Figures 12 and 13 illustrate how fo ⁇ ns 20 and retention mechanisms 56 create the wall foiming system 50 of adjacent forms 20 according to the present invention.
  • spacers 66 are often placed between adjacent forms 20 to assist with proper alignment of forms 20 to create wall forming system 50. Spacers 66 keep opposing sets of fo ⁇ ns 20 generally equally spaced from one another and are substantially incorporated into finished wall 80. Spacers 66 may also perform an additional function of fo ⁇ ning a mold to receive flowable material to be cured therebetween into finished wall 80. First and second ends 14, 16 of spacers 66 are configured to receive the retaining mechanism 56.
  • first and second ends 74, 76 have an aperture 75 for slidingly engaging bolt 52 of retention mechanism 56 outside the boundary of fonn 20. Moreover, first and second ends 74, 76 of spacer 66 rest within recesses 45 of fo ⁇ ns 20. Thus, when forms 20 are positioned adjoining to each other, fo ⁇ ns 20 are substantially flush with respect to each other. Accordingly, the depths of each individual recess 45 is generally half the depth of first or second ends 74, 76.
  • Recesses 45 help to minimize any seam that exists between adjoining fo ⁇ ns 20 and that may be visible on the finished wall 80. It should be noted with the staggering outer periphery of fo ⁇ ns 20' further assist in. hiding any seams that may be visible on finished wall 80 because the seam is not continuous along a horizontal or vertical line.
  • first and second ends 74,76 of spacers 66 remain outside the boundary of finished wall 80.
  • spacers 66 may be scored at a dividing line 72. The location of dividing line 72 is dependent on the thickness of finished wall 80; dividing line 72 separates the portion of spacer 66 that remains embedded in the finished wall 80 from the portion of spacer 66 that juts out of the finished wall 80. However, it can be appreciated that dividing line 72 may be disposed anywhere along spacer 66 and may be any multiple numbers of scoring lines. Removal of first and second ends 74, 76 of spacer 66 from finished wall 80 only requires a slight tap of a hammer to first and second ends 74, 76.
  • FIGs 14 and 15 illustrate an alternative spacer 90 according to the present invention.
  • Conventional spacers are either all flat or all round.
  • Flat spacers generally allow for easier assembly of form 20 while round spacers may be more durable.
  • round spacers generally more aesthetically pleasing because once construction is complete, the portion of the round spacer that remains within finished wall 80 is less noticeable on the surface of finished wall 80.
  • spacer 90 combines advantages of conventional spacers into a new spacer, without the corresponding disadvantages.
  • Spacer 90 has both a flat portion 92 and a round portion 94.
  • Flat portion 92 further includes apertures 96 for receiving bolt 52 of retaining mechanism 56.
  • Round portion 94 of spacer 90 is substantially incorporated into finished wall 80, while flat portion 92 remains outside the boundary of finished wall 80. Similar to first and second ends 74, 76 of spacers 66, flat portions 92 of spacers 90 rest within recesses 45. Moreover, to facilitate removal of flat portions 92 after construction, spacer 90 may be scored at one or more dividing lines 98. The location of dividing line 98 is dependent on the thiclcness of finished wall 80; dividing line 98 separates the portion of spacer 90 that remains embedded in the finished wall
  • Figure 15 illustrates spacer 90 in an installed position within wall fo ⁇ mng system 50.
  • Spacer 90 may be manufactured using any conventional techniques for forming metal parts. For instance, a round section of metal may be used for the round portion 94 of spacer 90. Flat pieces of metal may be welded to the round section of metal for create the flat portion 92 of spacer 90. However, die preferred method of manufacturing spacer 90 is by using a progressive stamping operation on a flat piece of metal. The round portion 94 of spacer 90 may be machined from the flat piece of metal through progressive tooling techniques, while the flat portion 92 of spacer 90 maintains the shape of the flat piece of metal.
  • Figures 3, 4, 5, 6, 12, 13, and 15 shows a plurality of openings 40 along upper and lower outer horizontal braces 32 of form 20.
  • forms 20 may be stacked vertically along horizontal braces 32, and are not limited to being connected along vertical outer braces 34.
  • Retention mechanism 56 is identical for retaining forms 20 stacked vertically upon each other.
  • spacers 90' may be used with respect to holes 27.
  • Spacer 90' may be scored in a manner similar to that discussed above to remove portions of spacer 90' that extends outwardly from finished wall 80.
  • spacer 90' may be used as a fastener for items to be screwed to finished wall 80 such as studs.
  • Road curbs may also be manufactured using a curb fonn 100 similar in concept to form 20, and substantially incorporating the features and advantages of form 20.
  • Figure 17 illustrates curb fonn 100.
  • Curb form 100 includes a front portion
  • Front portion 102 includes a tapered panel 106. Tapered panel 106 may be designed as per government or industry regulations for road curb structures.
  • Rear portion 104 comprises a solid face 108 and a reinforcement grid 110.
  • Reinforcement grid 110 generally resembles reinforcement matrix 30 of fonn 20.
  • reinforcement grid 110 perfo ⁇ ns substantially the same function as reinforcement matrix 30 as well as provides the same advantages as reinforcement matrix 30. It should be noted that reinforcement grid 110 may also resemble reinforcement matrix 30' of fonn 20' and perform substantially the same function as well as provide the same advantages of reinforcement matrix 30' of form 20'.
  • Curb fonn 100 includes openings 112 for engaging spacers and retention mechanisms. As with forms 20, curb forms 100 may be joined together by retention mechanisms to create a plurality of connected curb forms 100, depending on the desired length of the finished road curb. Similarly, spacers 66 or 90 may be used to properly align the first and second portions 102, 104 of the curb form 100 and may be integrated into the finished road curb. Once first and second portions 102, 104 of curb form 100 are connected by spacer 66 or 90, flowable material is poured between first and second portion 102, 104. The flowable material is then cured into the finished road curb.
  • form 20 and form 100 there are numerous advantages to manufacturing at least key components of form 20 and form 100 from a non-wooden and non-metallic material such as plastic.
  • Forms 20, 100 are also very light in weight, pe ⁇ nitting the ready movement, assembly, and disassembly of forms 20, 100 at a construction site. Yet, because fo ⁇ ns 20, 100 are non-metallic, the forms 20, 100 are much more resistant to slight dings or bangs that would otherwise deface a metallic form with an etched pattern. In the case of damage to forms 20, 100, repair may be possible at an actual job site, using plastic repair kits l ⁇ iown in the art, and without having to rework the entire pattern. Further, because the pattern is integrated into base portion 28 of forms 20,
  • entire forms 20, 100 are completely integral, fomied as one piece.
  • key components of fo ⁇ ns 20, 100 are created using a molding process.
  • fo ⁇ ns 20, 100 are created by computer numerical control (CNC) machining. CNC machining allows forms 20, 100 to have a custom shape and custom size.
  • the molded material is a polypropylene copolymer such as that sold under the trade name Pro-fax TM.
  • fo ⁇ ns 20, 100 may be manufactured at very low cost, pe ⁇ nitting the creation of many different molds with different patterns depending on the desired application.
  • the material may include a variety of fillers such as fiberglass strands to provide additional stiffness and rigidity to forms 20, 100, while still minimizing weight and providing flexibility against potential nicks or gouges.
  • the flowable material used to create finished wall 80 does not bond with the material of fo ⁇ ns 20,
  • forms 20, 100 during the curing process. Therefore, forms 20, 100 require minimal cleaning after the flowable material has been cured and forms 20, 100 have been removed.
  • forms 20, 100 are not porous like wood and thus, do not absorb any water from the flowable material. Therefore, forms 20, 100 do not have to be sprayed with a coating prior to use to prevent water absorption, nor do fo ⁇ ns 20,
  • forms 20, 100 deteriorate over time due to water damage. Moreover, holes 27 of forms 20, 100 allow the flowable material to breathe and thus, drain out any excess air and water retained in the flowable material. As a result, finished wall 80 may have a finer surface texture than with conventional forms.
  • forms 20, 100 may be used to create a colored finished wall 80 without reducing the reusability of Hie forms.
  • Forms 20, 100 may be coated with a powder or acid which mixes with the flowable material to create a colored flowable material.
  • forms 20, 100 are not porous and therefore, do not absorb the color of the flowable material.
  • forms 20, 100 may be used to make finished walls 80 of several different colors, without affecting the color of the finished wall 80 or the reusability of fo ⁇ ns 20, 100.
  • Fo ⁇ ns 20, 100 are not limited to creating a generally planar finished wall 80 as illustrated in Figure 8, but may also generate curves, radii and fillers to create comers for finished wall 80. Accordingly, fo ⁇ ns 20, 100 may be molded to create a complete wall, including comers, without the use of additional molds for the corners. Moreover, fo ⁇ ns 20, 100 may be altered for use in an area where a full size fonn 20, 100 would not properly fit. Fonns 20, 100 may be cut on location at a construction site due to the nature of the material of forms 20, 100 without affecting the quality or fo ⁇ nation of finished wall 80. On the other hand, forms 20, 100 may be joined together to form any irregular shape or size for finished wall 80. It should noted that while forms 20, 100 are depicted as being joined to form generally rectangular-shaped walls, fo ⁇ ns 20, 100 may be joined as staggering units to divide and possibly hide any seams that may exist on the finished wall 80.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Revetment (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Road Paving Structures (AREA)
  • Bridges Or Land Bridges (AREA)
  • Laminated Bodies (AREA)
  • Panels For Use In Building Construction (AREA)
  • Finishing Walls (AREA)

Abstract

A form for use with a flowable construction material including a base portion having a front and rear face and a reinforcement matrix secured to the rear face. At least the base portion of the form is a non-metallic, non-wooden material.

Description

RE-USABLE NON-METALLIC CONSTRUCTION FORMING SYSTEM
FIELD OF THE INVENTION [0001] This application claims the benefit of U.S. Provisional Application No. 60/437,380, filed December 31, 2002, and U.S. Provisional Application No. 60/491 ,355, filed" July 31 , 2003, the entire contents of which are herein incorporated by reference. The present invention relates generally to a construction forming system and more specifically to a poured forming system retained using re-usable light-weight plastic forms.
BACKGROUND OF THE INVENTION
* [0002] Poured forming systems are well known for the formation of building structures including foundations, walls, floors, and roofs. Typically, a form is created for receiving a flowable, hardenable material, most typically a cementito s material such as concrete. The form includes a face surface for contacting the flowable material.
[0003] Most often the form is produced predominantly from wood. The flowable material contacts a generally planar wooden face and cures into its final orientation.
However, wood naturally contains oil. The oil mixes with the flowable material, separating any water contained within the flowable material away from the material.
The separated water is absorbed into the wooden form, causing water damage to the wooden form. Furthermore, water stains the front surface of the structure before the structure can completely cure. Additionally, the wooden form is often destroyed upon separation from the flowable material, but includes the advantage of low cost.
[0004] More recently aluminum forms have been used in place of the wooden forms. An advantage of the aluminum forms is that they may include one of a limited number of patterns lightly etched into the face, such that when the flowable material contacts the etched surface, it takes on the mirror image of the pattern. However, aluminum forms have a number of significant disadvantages. For example, the forms are heavy, complicating assembly and disassembly as well as transport. Further, while reusable, the etched patterns are easily subject to damage, and may be readily gouged or otherwise defaced. Moreover, the forms are very expensive to manufacture, particularly with respect to providing a consistent pattern from form to form as they are secured together. Yet a further problem is that only a very limited number of simple, lightly etched patterns may be used, which does not extend more than a slight percentage of the total thickness of the form.
[0005] To address the problems of both wooden and aluminum foπns, at least one company has created a thin form liner that is disposed between the face of a traditional form and the flowable material. The form liner typically includes a lightly etched pattern. Once the material has cured and the form is removed, the liner is then stripped away from the flowable material. Such a liner is subject to a number of major problems. In view of its limited thickness, it readily expands or contracts because of changes in temperature. As a result, the liners can only be used in a veiy limited temperature range without damage to the liners or aberrations to the pattern itself. Further, even when used at optimal temperatures, many flowable materials such as type 3 concrete with accelerators create high heat during the curing process, which damages the liner. The liners are also difficult to secure to the face of the form, which results in non-optimal pattern distribution from form to form. As with the aluminum forms, only a limited number of thinly etched patterns may be used. Moreover, the use of a deeper pattern is often not possible without damage to the liner or at the very least significant distortion to the pattern.
SUMMARY OF THE INVENTION [0006] The present invention relates to a form for use with a flowable construction material. The form includes a base portion having a front and rear face and a reinforcement matrix secured to the rear face. At least the base portion of the form is a non-metallic, non-wooden material.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] FIG. 1 A is a front view of a form in accordance with the present invention.
[0008] FIG. IB is a cross-sectional planar view of the form taken along lines 1 A-
1A in Figure 1.
[0009] FIG. 2A is a rear view of a form in accordance with the present invention. [0010] FIG. 2B is a cross-sectional planar view of the form taken along lines 2A-
2A in Figure 2.
[0011] FIG. 3 is a perspective view of an alternate embodiment of the form in accordance with the present invention.
[0012] FIG. 4 is a perspective view of the alternate form in accordance with the present invention.
[0013] FIG. 5 is a perspective view of a further alternate embodiment of the form in accordance with the present invention.
[0014] FIG. 6 is a perspective view of the further alternate form in accordance with the present invention.
[0015] FIG. 7 is a rear view of a wall forming system in accordance with the present invention.
[0016] FIG. 8 is a perspective view of the wall foπning system, showing a portion of the retention mechanism in accordance with the present invention.
[0017] FIG. 9 is a perspective view of the wall foπning system, showing an alternative embodiment of the retention mechanism.
[0018] FIG. 10 is a perspective view of the wall forming system, showing a further alternative embodiment of the retention mechanism.
[0019] FIG. 11 is a perspective view of a finished wall using the form system of the present invention.
[0020] FIG. 12 is a perspective view of a hollow wall forming system using opposing sets of forms separated by spacers for receiving flowable material.
[0021] FIG. 13 is a different perspective view of the system of Figure 12.
[0022] FIG. 14 is a perspective view of an isolated alternate spacer in accordance with the present invention.
[0023] FIG. 15 is a perspective view of the wall fonning system, illustrating the alternative spacer in an installed position.
[0024] FIG. 16 is a side view of a further alternate spacer using an opening through the faces of opposing forms in accordance with the present invention.
[0025] FIG. 17 is a perspective view of a curb form in accordance with the present invention. DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0026] Referring now to the Figures, wherein like reference numerals refer to like elements throughout the several figures, Figures 1 A and 2 A illustrate front and rear faces 22, 24 of an imiovative constraction form 20 made from a non-metallic material, while Figures IB and 2B are taken along lines 1A-1 and 2A-2A, respectively, to show a top and bottom view of form 20.
[0027] More specifically, Figure 1 A illustrates front face 22 of form 20, with a series of cavities 26 extending inwardly from the otherwise generally planar front face
22. However, it can be appreciated that cavities 26 may also extend outwardly from front face 22. As discussed in greater detail below, cavities 26 can be deep. Front face 22 includes a base portion 28 of form 20. In significant contrast with the prior art, cavities 26 may extend on the order of one-half to three-quarters or even more of the total overall thickness "T" of form 20. Figures IB and 2B illustrate an example of the depth of cavities 26. The illustrated fonn 20 is intended to mimic rocks extruding from rear surface 24 of fonn 20.
[0028] Cavities 26 optionally include holes 27 that extend from front face 22 through rear face 24. It can be appreciated that holes 27 are not limited to being disposed within cavities 26 and may be disposed anywhere along front face 22 of form 20. However, holes 27 are not always desired since they can affect the appearance of the finished product.
[0029] The rear surface 24 of form 20 includes an integral honeycombed reinforcement matrix 30 which extends away from rear face 24. Rear face 24 also includes base portion 28 of form 20. In the illustrated embodiment, reinforcement matrix 30 includes a plurality of horizontally and vertically extending braces 32, 34 integral with base portion 28 of form 20. In some instances, cavities 26 may intersect braces 32 or 34, thereby providing cavities 26 with additional structural support. In general, braces 32, 34 are equally spaced from each other. However, as shown in
Figure 2 A, spacing of braces 32, 34 may be non-uniform in regions where additional rigidity or support is required to minimize unwanted movement of fonn 20 when in an installed orientation. In the illustrated embodiment, braces 32, 34 representing the outer periphery of the form 20 are wider in dimension "A" than the inner braces.
However, the braces 32, 34 representing the outer periphery of form 20 may also be of the same thickness as inner braces. It is also envisioned that additional bracing, such as members extending diagonally between select horizontal or vertical braces, maybe helpful for some applications. For example, additional bracing may be required when a very deep pattern is used, such as one that extends inwardly from the front face 22 to a significant percentage of the total thickness "T" of form 20.
Another example may be when a particularly complicated pattern is desired. Tims, thickness, depth, numbers, and orientation of the braces 32, 34 may all be modified as desired to provide the optimal balance between weight and necessary rigidity of fonn
20 based on the pattern being, used.
[0030] Figures 3 and 4 illustrate an alternate embodiment of the present invention.
Reinforcement matrix 30' of forms 20' include webbings 35 and supports 37 and 37'.
Supports 37 and 37' are intermittently spaced between sections of webbings 35. The webbings 35 include orifices 33. The orifices 33 provide webbings 35 with a cushion to protect form 20' against inadvertent side impacts, especially during assembly and disassembly of forms 20' when webbings 35 may be physically struck. In essence, orifices 33 absorb a substantial amount of the force exerted on reinforcement matrix
30'. Moreover, webbings 35 allow for weight reduction of fonn 20'. As illustrated, webbing 35 may be positioned in close proximity to another webbing 35 for additional cushioning. Moreover, placing two webbings 35 in close proximity to one another allows form 20' to be divided into sub-units (not shown) if desired.
Accordingly, each sub-unit may include at least one webbing 35. It should be noted that while Figures 3 and 4 illustrate orifices 33 varying in size, orifices 33 may also be of unifoπn size.
[0031] Figure 5 illustrates form 20' as having a staggering vertical outer periphery. The staggering vertical outer periphery of fonn 20' may assist a user when joining two or more forms 20' together. The staggering outer periphery of form 20' provides for easier alignment of adjoining forms 20', than the straight outer periphery of forms 20. Moreover, once forms 20' are secured together, the staggering outer peripheries of foπns 20' provides a greater retaining force of forms 20'. Figure 6 illustrates adjoining forms 20' positioned to form an interlocking unit. Securement of forms 20 and 20' are discussed in greater detail below. While the present invention illustrates the vertical outer periphery as being staggering, the present invention can also be practiced with the horizontal outer periphery as being staggering. It should be further noted that reinforcement matrix 30' of form 20' may be interchanged with reinforcement matrix 30 of form 20. Furthermore, reinforcement matrix 30' perfoππs substantially the same function as reinforcement matrix 30 and provides the same advantages as reinforcement matrix 30 as well as the additional advantages noted above.
[0032] As best illustrated in Figures 3, 4, 5, 6, 12, 13, and 15 outer vertical brace
34 of form 20 includes a plurality of openings 40 spaced between top 44 and bottom
46 of fonn 20. Openings 40 are located between recess 45. Recesses 45 are discussed in greater detail below. Additionally, horizontal braces 32 associated with top 44 and bottom 46 of form 20 may also include openings 40, and recesses 45, spaced along each horizontal brace 32.
[0033] Openings 40 assist in constructing an overall wall foπning system 50 in accordance with various embodiments of the present invention as shown in the
Figures. Wall forming system 50 includes a plurality of forms 20. Fonns 20 are aligned such that openings 40 of adjacent forms 20 line up with each other when forms 20 are being assembled into wall foπning system 50. There is no requirement that openings 40 be equally spaced apart. In practice it has been found to be most beneficial to have openings 40 closely spaced together in the center of form 20 and more widely spaced near top 44 and bottom 46 of form 20, as best illustrated in
Figure 7.
[0034] During assembly of forms 20 into the wall forming system 50, a series of male members, such as bolts 52, may be used to secure forms 20 together. Bolts 52 can be inserted through mating openings 40 of adjacent foπns 20 and then secured.
Traditionally, bolts 52 are threaded, allowing a nut (not shown) to be threaded onto bolts 52. However, the use of such a conventional fastener can be time consuming to assemble and disassemble.
[0035] Figures 7 and 8 illustrate one embodiment of the present invention. A friction based securement member illustrated as a friction based wedging member 54, is used as part of a retention mechanism 56. Retention mechanism 56 further includes bolts 52. Wedging member 54 is wedged between base portion 28 of fonn 20 and bolt 52. Typically, wedging member 54 is thinnest at one end and thickest at an opposing end to fonn a ramp-lilce member. As illustrated, wedge member 54 is wider at the thicker portion and narrower at the thinner portion. Applying a force at the top of wedging member 54, in a direction generally perpendicular to the desired movement between bolt 52 and form 20, forces the thicker portion of wedging member 54 to lodge between bolt 52 and form 20. The shape and design of wedging member 54 is such that a person in the field will be able to easily identify the proper orientation of wedging member 54 for installation. However, on the other hand, the design of wedging member 54 does not prevent installation of wedging member 54 when wedging member 54 is rotated ISO degrees. If such an orientation of wedging member 54 is desired, then the installer may simply hold wedging member 54 in place while hammering. Wedging member 54 is concave to facilitate its insertion between bolt 52 and base portion 28 of form 20. The concave shape of wedging member 54 also facilitates the application of force on the bottom portion of wedging member 54 to dislodge wedging member 54 once wall foiming system 50 is to be disassembled.
Wedgmg member 54 may be formed of a material having characteristics which allow wedging member 54 to compress under load without damaging either fonn 20 or bolt
52. In an alternative embodiment, wedging member 54 may be formed of the same material as form 20, while bolt 52 may typically be metallic, and preferably foπned from an iron-based material. In a further alternative embodiment, wedging member
54 may also be metallic so as to minimize damage caused to wedging member 54 from bolt 52 during assembly of wall foiming system 50. Form 20 provides compressive capabilities to further assist in retaining bolt 52 and wedging member 54.
Additionally, as illustrated in the present invention, braces 32, 34 are offset from openings 40 and reinforcement mechanism 56 to permit the use of either wedging member 54 or traditional threaded connections.
[0036] Figure 9 illustrates an alternative retention mechanism 56' that may be practiced with the present invention. As illustrated, wedging member 54' is integral with form 20. To avoid interference with bolts 52, wedging members 54' are only disposed on a common side of each fonn 20. Retention mechanism 56' includes an opening 58 along the lateral extent of wedging member 54', generally equally spaced from an upper end 60 and a lower end 62. Outer periphery of opening 58 is preferably less in diameter than bolt 52 to be inserted, creating a friction fit as
-1- wedging member 54' is inserted into bolt 52. The material on either side of opening 58 provides resistance and support to opening 58, facilitating retention of bolt 52. It can be appreciated that the present invention is not limited to the retention mechanisms disclosed above, but can be practiced with other approaches to integrating wedging member 54' to form 20. For example, the portion of wedging member 54' adjoining an opening 40 may be thinner than a portion spaced away from opening 40 along the path of travel of bolt 52. It can be appreciated that wedging member 54' may be integrated with form 20 in any manner so long as wedging member 54' is integrated with fonn 20 and friction is used to retain bolt 52, while permitting easy removal once wall forming system 50 is to be disassembled. [0037] Figure 10 is a further alternative embodiment of retention mechanism 56" that may be practiced with the present invention. Retention mechanism 56" includes a wedging member 54" and bolt 52. Wedging member 54" maybe wedged between base portion 28 of form 20 and bolt 52 as in Figure 8, or wedging member 54" may be integral with fonn 20 as in Figure 9. Wedging member 54" is similar to wedging member 54 and wedging member 54' however, wedging member 54' ' further includes a lip 55 at the thicker portion. Lip 55 provides a wider surface than wedging member 54 and 54' on which to apply force during installation. [0038] Wall foπning system 50 illustrated in the Figures is often used for retaining walls of the type illustrated in Figure 11. Figure 11 illustrates a finished wall 80 where the material being retained forms the opposite half of the mold for the flowable material. Wall forming system 50 is set up, the flowable material is poured between opposing molds, permitted to cure into wall 80, and then wall fonning system 50 is disassembled. The pattern shown in Figure 11 is of rocks jutting out from a base, which is much more defined and detailed then patterns formed by conventional systems. However, it should be noted that the pattern in Figure 11 is for illustration purposes and that wall fonning system 50 may be of a different pattern, For example, Figures 12 and 13 illustrate a second pattern that may be used in accordance with the present invention.
[0039] As noted above, forms 20 are positioned adjoining to each other in wall forming system 50. However, forms 20 may not necessarily be adjoining. Figures 12 and 13 illustrate how foπns 20 and retention mechanisms 56 create the wall foiming system 50 of adjacent forms 20 according to the present invention. Additionally, spacers 66 are often placed between adjacent forms 20 to assist with proper alignment of forms 20 to create wall forming system 50. Spacers 66 keep opposing sets of foπns 20 generally equally spaced from one another and are substantially incorporated into finished wall 80. Spacers 66 may also perform an additional function of foπning a mold to receive flowable material to be cured therebetween into finished wall 80. First and second ends 14, 16 of spacers 66 are configured to receive the retaining mechanism 56. Accordingly, first and second ends 74, 76 have an aperture 75 for slidingly engaging bolt 52 of retention mechanism 56 outside the boundary of fonn 20. Moreover, first and second ends 74, 76 of spacer 66 rest within recesses 45 of foπns 20. Thus, when forms 20 are positioned adjoining to each other, foπns 20 are substantially flush with respect to each other. Accordingly, the depths of each individual recess 45 is generally half the depth of first or second ends 74, 76.
Recesses 45 help to minimize any seam that exists between adjoining foπns 20 and that may be visible on the finished wall 80. It should be noted with the staggering outer periphery of foπns 20' further assist in. hiding any seams that may be visible on finished wall 80 because the seam is not continuous along a horizontal or vertical line.
[0040] Once forms 20 are disassembled, first and second ends 74,76 of spacers 66 remain outside the boundary of finished wall 80. To facilitate removal of first and second ends 74, 76 of spacer 66 after construction, spacers 66 may be scored at a dividing line 72. The location of dividing line 72 is dependent on the thickness of finished wall 80; dividing line 72 separates the portion of spacer 66 that remains embedded in the finished wall 80 from the portion of spacer 66 that juts out of the finished wall 80. However, it can be appreciated that dividing line 72 may be disposed anywhere along spacer 66 and may be any multiple numbers of scoring lines. Removal of first and second ends 74, 76 of spacer 66 from finished wall 80 only requires a slight tap of a hammer to first and second ends 74, 76.
[0041] Figures 14 and 15 illustrate an alternative spacer 90 according to the present invention. Conventional spacers are either all flat or all round. Flat spacers generally allow for easier assembly of form 20 while round spacers may be more durable. Moreover, round spacers generally more aesthetically pleasing because once construction is complete, the portion of the round spacer that remains within finished wall 80 is less noticeable on the surface of finished wall 80. However, it is generally more difficult to insert bolts into round spacers. As shown in Figures 14 and 15, spacer 90 combines advantages of conventional spacers into a new spacer, without the corresponding disadvantages. Spacer 90 has both a flat portion 92 and a round portion 94. Flat portion 92 further includes apertures 96 for receiving bolt 52 of retaining mechanism 56. Round portion 94 of spacer 90 is substantially incorporated into finished wall 80, while flat portion 92 remains outside the boundary of finished wall 80. Similar to first and second ends 74, 76 of spacers 66, flat portions 92 of spacers 90 rest within recesses 45. Moreover, to facilitate removal of flat portions 92 after construction, spacer 90 may be scored at one or more dividing lines 98. The location of dividing line 98 is dependent on the thiclcness of finished wall 80; dividing line 98 separates the portion of spacer 90 that remains embedded in the finished wall
80 from the portion of spacer 90 that juts out of finished wall 80. Removal of flat portion 92 of spacer 90 only requires a slight tap of a hammer to flat portion 92.
Figure 15 illustrates spacer 90 in an installed position within wall foπmng system 50.
[0042] Spacer 90 may be manufactured using any conventional techniques for forming metal parts. For instance, a round section of metal may be used for the round portion 94 of spacer 90. Flat pieces of metal may be welded to the round section of metal for create the flat portion 92 of spacer 90. However, die preferred method of manufacturing spacer 90 is by using a progressive stamping operation on a flat piece of metal. The round portion 94 of spacer 90 may be machined from the flat piece of metal through progressive tooling techniques, while the flat portion 92 of spacer 90 maintains the shape of the flat piece of metal.
[0043] As stated above, Figures 3, 4, 5, 6, 12, 13, and 15 shows a plurality of openings 40 along upper and lower outer horizontal braces 32 of form 20. Thus, forms 20 may be stacked vertically along horizontal braces 32, and are not limited to being connected along vertical outer braces 34. Retention mechanism 56 is identical for retaining forms 20 stacked vertically upon each other.
[0044] Moreover, under certain circumstances, such as when openings 40 are not accessible, but opposing fonns 20 must be maintained in a fixed position, spacers 90' may be used with respect to holes 27. In a simple embodiment illustrated in Figure
16, threaded bolts, acting as spacers 90', pass through mating holes 27 of each opposed form 20 and nuts 99 optionally engage the rear face 24 to maintain each form
20 in a fixed orientation with respect to spacer 90'. Once use of forms 20 is complete, nuts 99 engaging rear face 24 may be removed. Spacer 90' may be scored in a manner similar to that discussed above to remove portions of spacer 90' that extends outwardly from finished wall 80. Alternatively, spacer 90' may be used as a fastener for items to be screwed to finished wall 80 such as studs.
[0045] Road curbs may also be manufactured using a curb fonn 100 similar in concept to form 20, and substantially incorporating the features and advantages of form 20. Figure 17 illustrates curb fonn 100. Curb form 100 includes a front portion
102 and a rear portion 104. Front portion 102 includes a tapered panel 106. Tapered panel 106 may be designed as per government or industry regulations for road curb structures. Rear portion 104 comprises a solid face 108 and a reinforcement grid 110.
Reinforcement grid 110 generally resembles reinforcement matrix 30 of fonn 20.
Moreover, reinforcement grid 110 perfoπns substantially the same function as reinforcement matrix 30 as well as provides the same advantages as reinforcement matrix 30. It should be noted that reinforcement grid 110 may also resemble reinforcement matrix 30' of fonn 20' and perform substantially the same function as well as provide the same advantages of reinforcement matrix 30' of form 20'.
[0046] Curb fonn 100 includes openings 112 for engaging spacers and retention mechanisms. As with forms 20, curb forms 100 may be joined together by retention mechanisms to create a plurality of connected curb forms 100, depending on the desired length of the finished road curb. Similarly, spacers 66 or 90 may be used to properly align the first and second portions 102, 104 of the curb form 100 and may be integrated into the finished road curb. Once first and second portions 102, 104 of curb form 100 are connected by spacer 66 or 90, flowable material is poured between first and second portion 102, 104. The flowable material is then cured into the finished road curb.
[0047] There are numerous advantages to manufacturing at least key components of form 20 and form 100 from a non-wooden and non-metallic material such as plastic. Forms 20, 100 are also very light in weight, peπnitting the ready movement, assembly, and disassembly of forms 20, 100 at a construction site. Yet, because foπns 20, 100 are non-metallic, the forms 20, 100 are much more resistant to slight dings or bangs that would otherwise deface a metallic form with an etched pattern. In the case of damage to forms 20, 100, repair may be possible at an actual job site, using plastic repair kits lαiown in the art, and without having to rework the entire pattern. Further, because the pattern is integrated into base portion 28 of forms 20,
100, unwanted movement of the pattern with respect to the rest of forms 20, 100 is eliminated, in contrast to the use of conventional thin liners.
[0048] In a preferred embodiment of the invention, entire forms 20, 100 are completely integral, fomied as one piece. In one embodiment, key components of foπns 20, 100 are created using a molding process. In an alternate embodiment, foπns 20, 100 are created by computer numerical control (CNC) machining. CNC machining allows forms 20, 100 to have a custom shape and custom size. In a further alternative embodiment of the present invention, the molded material is a polypropylene copolymer such as that sold under the trade name Pro-fax ™. Thus, foπns 20, 100 may be manufactured at very low cost, peπnitting the creation of many different molds with different patterns depending on the desired application. The material may include a variety of fillers such as fiberglass strands to provide additional stiffness and rigidity to forms 20, 100, while still minimizing weight and providing flexibility against potential nicks or gouges. For instance, the flowable material used to create finished wall 80 does not bond with the material of foπns 20,
100 during the curing process. Therefore, forms 20, 100 require minimal cleaning after the flowable material has been cured and forms 20, 100 have been removed.
Moreover, there is minimal, if any, contact between the flowable material and retention mechanism 56. Thus, rusting of the metal components of retention mechanism 56 may be substantially reduced over time.
[0049] Additionally, forms 20, 100 are not porous like wood and thus, do not absorb any water from the flowable material. Therefore, forms 20, 100 do not have to be sprayed with a coating prior to use to prevent water absorption, nor do foπns 20,
100 deteriorate over time due to water damage. Moreover, holes 27 of forms 20, 100 allow the flowable material to breathe and thus, drain out any excess air and water retained in the flowable material. As a result, finished wall 80 may have a finer surface texture than with conventional forms. Along those same lines, forms 20, 100 may be used to create a colored finished wall 80 without reducing the reusability of Hie forms. Forms 20, 100 may be coated with a powder or acid which mixes with the flowable material to create a colored flowable material. As stated above, unlike conventional foπns, forms 20, 100 are not porous and therefore, do not absorb the color of the flowable material. Thus, forms 20, 100 may be used to make finished walls 80 of several different colors, without affecting the color of the finished wall 80 or the reusability of foπns 20, 100.
[0050] Foπns 20, 100 are not limited to creating a generally planar finished wall 80 as illustrated in Figure 8, but may also generate curves, radii and fillers to create comers for finished wall 80. Accordingly, foπns 20, 100 may be molded to create a complete wall, including comers, without the use of additional molds for the corners. Moreover, foπns 20, 100 may be altered for use in an area where a full size fonn 20, 100 would not properly fit. Fonns 20, 100 may be cut on location at a construction site due to the nature of the material of forms 20, 100 without affecting the quality or foπnation of finished wall 80. On the other hand, forms 20, 100 may be joined together to form any irregular shape or size for finished wall 80. It should noted that while forms 20, 100 are depicted as being joined to form generally rectangular-shaped walls, foπns 20, 100 may be joined as staggering units to divide and possibly hide any seams that may exist on the finished wall 80.
[0051] The embodiments disclosed herein have been discussed for the purpose of familiarizing the reader with novel aspects of the invention. Although preferred embodiments of the invention have been shown and described, many changes, modifications and substitutions may be made by one having ordinary skill in the art without necessarily departing from the spirit and scope of the invention as described in the following claims.

Claims

CLAIMSWhat is claimed is:
1. A form for use with a flowable constraction material comprising:
a base portion having a front face and a rear face;
a reinforcement matrix secured to said rear face; and
wherein at least said base portion is formed from a non-metallic, non-wooden material.
2. A fonn as recited in claim 1, wherein said base portion and said reinforcement matrix are formed as a single piece.
3. A fonn as recited in claim 2, wherein said non-metallic, non-wooden material is a plastic.
4. A fonn as recited in claim 3, wherein said plastic includes fiberglass strands.
5. A fonn as recited in claim 1, wherein said reinforcement matrix comprises a series of integral braces.
6. A fonn as recited in claim 1 , wherein said front face of said base portion further includes a tapered panel.
7. A form as recited in claim 1, wherein said front face further includes a pattern.
8. A fonn as recited in claim 7, wherein a cavity associated with said pattern includes at least one aperture that extends from said front face to said rear face of said base portion.
9. A form as recited in claim 8, wherein said cavity associated with said pattern may extend more than approximately one-half the total thiclcness of tire form.
10. A form as recited in claim 9, wherein said cavity may extend more than approximately three-quarters of the total thickness of the form.
11. A form as recited in claim 10, wherein said reinforcement matrix comprises a series of integral braces, and wherein said cavity intersects one of said braces to provide additional structural support,
12. A wall foiming system comprising:
a plurality of forms, each having a front face, a rear face and a plurality of openings through said foπns;
a reinforcement matrix secured to said rear face of said plurality of fonns;
at least one retention mechanism having a male member and a securement member;
at least one spacer tie; and
wherein said plurality of forms are a non-metallic, non-wooden material, and wherein said retention mechanism secures together two of said fonns.
13. A wall forming system as recited in claim 12, wherein said foπns include at least one openmg, and wherein said male member of said retention mechanism passes through said opening.
14. A wall fonning system as recited in claim 13, wherein said spacer tie comprises said male member of said retention mechanism.
15. A wall forming system as recited in claim 13, .wherein said spacer tie has at least one hole and wherein said male member of said retention mechanism engages said hole and said opening when they are in mating alignment.
16. A wall forming system as recited in claim 15, wherei said openings of two forms being aligned with respect to each other, wherein said male member of said retention mechanism is inserted through said openings of two of said plurality of forms, and wherein said securement member is a wedging member that retains said male member through a friction fit.
17. A wall forming system as recited in claim 16, wherein said securement member of said retention mechanism is integral with one of said plurality of forms.
18. A retention mechanism as recited in claim 15 , said spacer tie includes opposing flat portions and a round portion disposed therebetween, and wherein said at least one hole extends through each of said flat portions.
19. A wall forming system as recited in claim 18, wherein said spacer tie including a score line to facilitate its separation along said score line, and wherein said score line separates said round portion from said plurality of flat portions.
20. A wall foπning system for use with a flowable constraction material comprising:
a plurality of base portions, each including a front face and a rear face;
a reinforcement matrix secured to each of said rear faces;
a retention mechanism;
wherein each of said plurality of base portions and said reinforcement matrix are molded as one piece, wherein said plurality of base portions are plastic, and wherein said retention mechanism secures two of said plurality of base portions together.
21. A wall forming system as recited in claim 20, wherein said plurality of base portions further includes a plurality of holes and wherein two of said base portions are positioned adjacent each other such that said holes of said base portions are aligned.
22. A wall forming system as recited in claim 21 , wherein said retention mechanism includes a male member and a securement member, wherein said male member passing through said aligned holes of said adjacent base portions and said securement member retains said male member..
23. A wall forming system as recited in claim 21 , wherein said retention mechanism further includes a brace disposed between said base portions for properly aligning said base portions.
24. A form for use with a flowable construction material comprising:
a base portion having a front face including a pattern and a rear face, said base portion is foπned from a plastic material;
a reinforcement matrix having a series of integral braces and being secured to said rear face; and
wherein said base portion and said reinforcement matrix are foπned from a single material.
25. A form as recited in claim 24, wherein a cavity associated with said pattern includes at least one aperture that extends from said front face to said rear face of said base portion.
26. A fonn as recited in claim 24, wherein said cavity associated with said pattern may extend more than approximately one-half the total thickness of said form.
27. A form as recited in claim 24, wherein said cavity may extend more than approximately three-quarters of the total thickness of the fonn.
PCT/US2003/039745 2002-12-31 2003-12-15 Re-usable non-metallic construction forming system WO2004060623A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2005508586A JP2006521477A (en) 2002-12-31 2003-12-15 Reusable non-metallic structure forming system
BR0317900-1A BR0317900A (en) 2002-12-31 2003-12-15 Form for use with flowable building material and wall forming system
CA002512157A CA2512157A1 (en) 2002-12-31 2003-12-15 Re-usable non-metallic construction forming system
AU2003297053A AU2003297053A1 (en) 2002-12-31 2003-12-15 Re-usable non-metallic construction forming system
MXPA05007106A MXPA05007106A (en) 2002-12-31 2003-12-15 Re-usable non-metallic construction forming system.
EP03814770A EP1578572A2 (en) 2002-12-31 2003-12-15 Re-usable non-metallic construction forming system

Applications Claiming Priority (4)

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US43738002P 2002-12-31 2002-12-31
US60/437,380 2002-12-31
US49135503P 2003-07-31 2003-07-31
US60/491,355 2003-07-31

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WO2004060623A2 true WO2004060623A2 (en) 2004-07-22
WO2004060623A3 WO2004060623A3 (en) 2004-11-11

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EP (1) EP1578572A2 (en)
JP (1) JP2006521477A (en)
KR (1) KR20050104342A (en)
AR (1) AR042695A1 (en)
AU (1) AU2003297053A1 (en)
BR (1) BR0317900A (en)
CA (1) CA2512157A1 (en)
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RU (1) RU2005125035A (en)
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CN100436739C (en) * 2006-01-20 2008-11-26 孙志强 Wood plastic template in use for architecture
US7469873B2 (en) * 2003-12-03 2008-12-30 Geoplast S.P.A. Re-usable modular formwork with improved ribs
CN102259387A (en) * 2010-05-12 2011-11-30 吴方伯 Ribbed precasting template for buildings
CN105822064A (en) * 2016-04-27 2016-08-03 成都绿迪科技有限公司 Mobile steel buckle for concrete civil engineering template

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DE102013107303B4 (en) 2013-07-10 2024-06-06 Polytech Gmbh Formwork panel for concreting formwork

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US7469873B2 (en) * 2003-12-03 2008-12-30 Geoplast S.P.A. Re-usable modular formwork with improved ribs
EP1538277B1 (en) 2003-12-03 2016-04-06 GEOPLAST S.p.A. Re-usable modular formwork with improved ribs
EP1538277B2 (en) 2003-12-03 2024-06-19 GEOPLAST S.p.A. Re-usable modular formwork with improved ribs
CN100436739C (en) * 2006-01-20 2008-11-26 孙志强 Wood plastic template in use for architecture
CN102259387A (en) * 2010-05-12 2011-11-30 吴方伯 Ribbed precasting template for buildings
CN105822064A (en) * 2016-04-27 2016-08-03 成都绿迪科技有限公司 Mobile steel buckle for concrete civil engineering template

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RU2005125035A (en) 2006-05-27
TW200424412A (en) 2004-11-16
KR20050104342A (en) 2005-11-02
US20040261342A1 (en) 2004-12-30
EP1578572A2 (en) 2005-09-28
MXPA05007106A (en) 2006-03-17
CA2512157A1 (en) 2004-07-22
JP2006521477A (en) 2006-09-21
BR0317900A (en) 2005-11-29
WO2004060623A3 (en) 2004-11-11
AU2003297053A1 (en) 2004-07-29
AR042695A1 (en) 2005-06-29
TWI250242B (en) 2006-03-01

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