Flying form
阅读：334发布：2023-06-11
专利汇可以提供Flying form专利检索，专利查询，专利分析的服务。并且A knockdown flying form quickly assembled and disassembled at a building site and providing as a unit a unitary form having guided metal to metal roll-out contact with adjustable form supports for pouring successive floor slabs of reinforced concrete. Laterally spaced I-beams permanently trimmed with wood strips support equally spaced saddle hangers that are interconnected by laminated wood joists whose ends vertically overlap and square the I-beams as well as provide a low profile with their vertically spaced rails disposed well above the upper and lower flanges, respectively, of the I-beams. The metal members have rigid wood-to-steel engagement at all points of readily releasable interengagements.，下面是Flying form专利的具体信息内容。
1. Prefabricated knockdown roll-out formwork for support on height and level adjustable screw jacks having heads including rollers defining a roll-out path and friction shoes adjustable to support said formwork above said rollers a predetermined distance is said path, said formwork comprising: parallel spaced metal beams resting on said jacks and having coplanar head and bottom flanges, each beam having a nailable header of substantial thickness secured to the upper face of its head flange and a side strip of nailable material spaced above the bottom flanges and secured to the beams on facing sides of the two beams, said side strip having a horizontal thickness substantially coextensive with the lateral extension of each head flange to define with the headers vertical parallel planes; hanger means spaced along the headers in manner facing each other in pairs and having horizontal portions releasably secured against the top surfaces of the respective headers and vertical flanges lying in one of said vertical planes, and hanger means including depending stirrup members with upper portions secured to said vertical flanges and horizontal strap means secured to lower portions thereof and releasably fastened to said side strip; laminated wood joist means defining nailable head and bottom rails interconnected by a web and having a height greater than the vertical depth of said stirrup members to locate the head rails a substantial distance above said head flange with the lower rail located well above the lower flange; means inCluding bolts releasably securing the ends of said joist means between the sides of the stirrup members against relative tension and compression forces exerted between said beams and said joist means; and plywood panel means secured to the head rails of said joisst means to support poured concrete for a floor slab and to brace said formwork against horizontal strains.
2. The construction defined in claim 1 in which said joist means including said joist rails on opposite sides of the web engage the sides of said stirrup member under compression and have aperture means therethrough for the bolt means arranged equidistant from said rails for inverted reuse of the joist means in said stirrup members.
3. The construction defined in claim 2 in which said joist means are square at their ends and collectively engage said headers and strips to plumb the beams and support them against rotation under load as they rest upon the screw jack heads and when the formwork is supported by crane at formwork corners.
4. The construction defined in claim 2 in which said filler blocks and rails at the joists include plywood panel elements extending across said wood headers and are supported in abutting relation with said plywood panel means by said filler blocks and rail ends of said joists.
5. A flying form comprising: a pair of parallel spaced metal beams disposed with parallel flanges along the head and bottom of their webs, respectively; a wood header of substantial thickness rigidly secured to the upper face of the head flange and colevel wood strips secured a spaced distance above the bottom flange against the facing sides of said beam webs, said strips having a horizontal thickness substantially equal to the width of each head flange to define with the head flanges a pair of vertical parallel planes; hanger means spaced along the tops of the wood headers facing each other in pairs and each having horizontal portions releasably secured against the top surface of the headers and a vertical portion lying in one of said vertical planes, said hanger means including depending stirrup members with upper edge portions secured to said vertical portion, and strap means secured to the lower edges of the stirrup member and releasably fastened against the side strip; laminated wood joists each having a head rail and bottom rail inteerconnected by a web and of a height greater than the depth of said stirrup members whereby the head rail is located a substantial distance above the wood header with the lower rail well above the lower flange; means releasably securing the ends of each joist between the sides of a stirrup member including filler blocks extending from rail to rail at both ends and on both sides of the web filling the spaces between the web and stirrup; and clamping means interconnecting the stirrup members and said blocks and web in place against compression and tension forces exerted between the metal beams and the joists.
6. The flying form defined in claim 5 including veneer panel forming a flooring and secured to the head rails for bracing said beams and joists against distortion from a geometric squareness.
7. In the construction of a building having at least three parallel pairs of columns the combination of formwork roll-out support means on opposite sides of the central pair of columns and opposing pairs of roll-out support means on the facing sides on each of the two outer pairs of columns including screw jacks supporting rollers at a predetermined level with their axes paralleled in four pairs defining two paralleled formwork roll-out paths; a pair of parallel spaced metal beams having top and bottom flange means disposed at the sides of each roll-out path resting on said respective rollers; wood headers secured to the top flanges of said beams; hanger means spaced along the tops of said wood headers extending towards each other in spaced pairs and having horizontal flanges secured to the top flange means with stirrup meMbers depending therefrom; joist means terminally supported within said stirrup means between each pair of beams with their upper edges disposed colevel within a limited height above said headers, and defining a space between said roll-out paths and intermediate said pair of columns; veneer panel means secured and marginally terminating within a spaced distance related to the end of said joists; means bridging said space and above the adjacent joist means including panel means carried thereby colevel with said coextensive veneer panel means; and means for lowering one of said adjacent beams to increase the space between the tops thereof to release the space bridging means from the form support on one side for its removal downwardly from the form support on its other side.
8. In the construction of a building having at least three parallel pairs of columns with formwork support means on opposite sides of the columns of the central pair of columns and on the sides of the two outer pairs of rollers where they face the central pair of columns, said supporting means including screw jacks, supporting rollers at a predetermined level with their axes parallel in four pairs defining two parallel formwork roll-out paths; the combination of a pair of parallel spaced beams disposed at the sides of each roll-out path resting on said respective rollers; nailable members defining the tops of said beams; support means secured in spaced relation along the tops of said members and extending towards each other in spaced pairs bordering each of said paths and having depending stirrup means; joist means terminally supported in said stirrup means between each pair of support means with their upper edges disposed above the level of said members, said beams defining open space between said roll-out paths and intermediate the columns of said central pair of columns; panel means secured to said joists and marginally terminating coextensively a spaced distance related to the end of said joists and said open space between said roll-out paths; means bridging said open space above the adjacent headers including secondary panel means carried by the beams colevel with said coextensive panel means; and means for lowering at least one of said space defining beams to release the bridging means for movement downwardly from its supported position for removal and reuse.
9. The construction defined in claim 8 in which said secondary panel means of said space bridging means is supported on the adjacent ends of the joists bordering said space.
10. The construction defined in claim 8 in which said secondary panel means includes a frame spanning said space resting on the adjacent members and supporting said coextensive panel means.
11. A roll-out flying form comprising parallel spaced metal beams having facing channels defined by horizontal head and bottom flanges, each beam having a nailable header secured to the upper face of the head flange marginally coextensive with said head flange edges and a nailable strip spaced substantially above the bottom flange and having a horizontal thickness disposing its exposed face in vertically co-planar relationship with said header edge, hanger means correspondingly spaced along the tops of the headers facing each other in pairs and having horizontal portions releasably secured against the tops of the headers and vertical flanges lying in one of said vertical planes, said hanger means including members with upper portions secured to the flanges and a strap member secured to the lower end thereof releasably fastened to said nailable strip, a plurality of laminated wood joist means having head and bottom rails interconnected by a web and having a height greater than the depth of said hanger members whereby the head rail is located a substantial distance above said head flange and the lower rail is well above the bottom flange, and means releasably securing the ends of said joists between the sides of the hAnger members under compression and tension forces including blocks at both ends of the web filling the space between said head and bottom rails, said releasable securing means including securement elements extending through said blocks, said web and the sides of said stirrup member, with said lower rail endwise positioned by said strap and strip.
12. In a knockdown flying form having spaced metal beams disposed with parallel webs and their respective head flanges disposed co-planar with spaced hangers secured to and depending from nailable headers secured to the respective head flanges and from nailable strips secured to the respective webs, said hangers having members having parallel sides disposed in vertical parallel orientation, in combination therewith, laminated wood joists cross-sectionally having an ''''I'''' configuration of a greater height than that of the members and terminally resting in said members to plumb and space said metal beams throughout their length, said joists having spaced nail receivable rails interconnected by a web and symmetrically invertable for either rail to serve as the top rail and including filler blocks extending from rail to rail at both ends on both sides of the web filling the spaces between the web and stirrup, and fastening means interconnecting the stirrup members and said blocks and webs to secure them in place against compression and tension forces occurring between the metal beams and the joists including aperture means through said blocks and web.
13. A prefabricated knockdown roll-out formwork comprising: parallel spaced metal beams having co-planar head and bottom flanges, each beam having a header of substantial thickness secured to the upper face of its head flange and a nailable side strip secured to the beam above its bottom flange on facing sides of the two beams, said side strip having a horizontal thickness substantially coextensive with the width of each header flange to define with the headers vertical parallel planes; means spaced along the headers facing each other in pairs and having portions releasably secured to the headers with a vertical portion lying in one of said vertical planes including depending support members with upper portions secured to said vertical portions and lower portions thereof fastened to said side strip; joist means defining nailable head and bottom rails interconnected by a web and having a height greater than the depth of said support members to locate the head rail an appreciable distance above said head flanges with the lower rail located well above the lower flange; means releasably securing the ends of said joist means to said support members against relative tension and compression forces exerted between said beams and said joist means; and plywood panel means secured to the head rails of said joist means to support poured cement for a floor slab and to brace said formwork against horizontal strains.
14. The device defined in claim 13 in which said metal beams have channels along their sides opposite to said spaced means within which to accommodate such spaced means on another beam in nesting relation when said beams are side-by-side to protect said spaced means from damage during storage and transportation.
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