SE123723C1

SE123723C1 -

Info

Publication number: SE123723C1
Authority: SE
Publication date: 1948-01-01

Description

KLASS 37 e:9/01 BESKRIVNING OFFENTLIGGJORD AV KUNGL. CLASS 37 e: 9/01 DESCRIPTION PUBLISHED BY KUNGL.

PATENT- OCH REGISTRERINGSVERKET BEVIDAT DEN 4 NOVEMBER 1948 PATENTTID FRAN DEN 30 SEPT. 1946 PUBLICERAT DEN 4 JANUAR! 1949 Ans. den "/, 1946, nr 8518/1946. PATENT AND REGISTRATION AGENCY GRANTED ON 4 NOVEMBER 1948 PATENT PERIOD FROM 30 SEPT. 1946 PUBLISHED ON JANUARY 4! 1949 Ans. den "/, 1946, No. 8518/1946.

Mail( en ritning. Mail (a drawing.

A. E. HERMANSSON, UDDEIT.4LLA. A. E. HERMANSSON, UDDEIT.4LLA.

Satt vid tillverkning av formsattningsplattor samt enligt sattet tillverkade plattor. Set during the manufacture of formwork plates and plates manufactured according to the set.

De vasentliga fordringarna pa en formsattningsplatta är, att den har god hallfasthet mot de pakanningar, for vilka den utslittes under betonggjutningen, lang livslangd, d. v. s. är motstandskraftig mot den omilda behandling, for vilken den utsattes vid formrivning, lag-ring och transporter, att den ger en effektiv gjntform, och att den ken framstallas med ett minimum av material och arbete och salunda betinga ett billigt pris. The essential requirements of a formwork slab are that it has good half-strength against the gaskets for which it is worn during concrete casting, long service life, ie is resistant to the harsh treatment to which it is subjected during grinding, storage and transport, that it provides an efficient mold, and that it is manufactured with a minimum of materials and labor and thus requires a cheap price.

Foreliggande uppfinning avser ett salt att tillverka en formsattningsplatta, som skall kunna fylla samtliga dessa vasentliga fordringar. Uppfinningen omfattar aven en platta, framstalld enligt ifragavarande tillverkningssatt. Plattan bestar liksom de fiesta tidigare kanda formsattningsplattor av ett antal kant i kant lagda brader. Braderna sammanhallas av genomgdende, i borrade hal indrivna armeringsstanger, vilket ocksa forekommer i ett flertal andra typer av formsattningsplattor. Det for sattet enligt uppfinningen vasentligt utmarkande ar framst, att hal for armeringsstangerna upptagas sâ, att halen for minst tva skilda armeringsstanger bilda vinkel med varandra, och att de i tva eller flera brader for en och samma armeringsstang avsedda halen anordnas forskjutna relativt varandra sa, att centrumlinjerna for halen i de olika braderna visserligen bliva parallella eller i stort sett parallella men centrumlinjen for ha-let i en brada blir belagen vid sidan om fOr- längningen av centrumlinjen for halet i angransande brada. Tack vare den harvid uppkommande kilverkan ftr det mojligt (ehuru ej under alla forhallanden nodvandigt) att an- vanda armeringsstanger utan att pa nagot salt bearbeta dem. Varje kraft, som stravar att skilja braderna at, leder dessutom till alining av kilningsverkan mellan armeringsstangerna och de lampligen genom borrning upptagna halens begransningsytor, varfor braderna effektivt forhindras att skiljas at Uppfinningen belyses narmare genom en utforingsform av en enligt uppfinningen utfOrd formsattningsplatta enligt bifogade ritfling. Fig. 1, 2 och 3 visa plattan schematiskt i plan och tva daremot vinkelrata projektioner resp. I fig. 4 visas en planvy av delar av plattan i storre skala. The present invention relates to a salt for the manufacture of a molding plate, which should be able to fill all these essential requirements. The invention also comprises a plate, manufactured according to the manufacturing method in question. The plate, like most previously known formwork plates, consists of a number of edge-to-edge brads. The brads are held together by continuous, drilled hall driven reinforcement bars, which also occurs in a number of other types of formwork plates. The main distinguishing feature of the method according to the invention is that the tail for the reinforcing bars is accommodated so that the tail for at least two different reinforcing bars forms an angle with each other, and that the holes intended for two or more brackets for one and the same reinforcing bar are arranged offset relative to each other. that the center lines of the tail in the different brads will admittedly become parallel or substantially parallel, but the center line of the tail in a brada will be coated alongside the elongation of the center line of the tail in adjacent brads. Thanks to the resulting wedge effect, it is possible (although not necessary in all circumstances) to use reinforcing bars without machining them with any salt. Each force which strains to separate the braids also leads to alignment of the wedging effect between the reinforcing bars and the limiting surfaces of the lamp suitably received by drilling, whereby the braids are effectively prevented from being separated. Figs. 1, 2 and 3 show the plate schematically in plan and two, on the other hand, angular projections resp. Fig. 4 shows a plan view of parts of the plate on a larger scale.

Fig. 1-3 d ritningen visar en av fern kant i kant lagda brader 1 sammansatt platta, dar braderna sammanhallas av armeringsstanger 2, 3, som bilda vinkel med varandra. Armeringsstangerna stracka sig genom hal i plat-tan fran dennas ena kant till den andra tvars igenom samtliga brader. Det Or emellertid tankbart att anordna flera an tvâ armeringsstanger och lata nauon eller nagra av dem stracka sig genom endast nagra av braderna. De i tva eller flera brader for en och samma armeringsstiing 2 eller 3 avsedda halen anordnas fOrskjutna relativt varandra i avsikt att astadkomma en kilningsverkan. Denna forskjutning kan astadkommas p0 olika salt. En majlighet visas i fig. 4. Har Or t. ex. ha-let 4 i bradan 5 anordnat forskjutet i sidled utkt relativt det for en och samma armeringsstang avsedda halet 6 i bradan 7 pa sadant satt, att eentrumlinjerna far halen i de olika braderna 5 och 7 visserligen Oro parallella men centrumlinjen for halet 4 Or belagen vid sidan om forlangningen av centrumlinjen for halet 6. Det Or har fraga om en forskjutning ett med plattans plan parallellt plan, i det armeringsstangerna lampligen anordnas i plattans neutrallager (d. v. s. vanligen i plat-tans mittplan). Denna forskjutning medfor att efter jarnens inslagning braderna i fogkanterna presses mot varandra genom det tryck, som armeringsstangerna astadkomma, da dessa tvingas igenom bradernas i forhallande till varandra fOrskjutna borrhal. Figs. 1-3 d of the drawing show a plate composed of four edge-to-edge boards 1, where the boards are held together by reinforcing bars 2, 3, which form an angle with each other. The reinforcing bars extend through the slate in the plate from one edge of it to the other across all the brads. It is conceivable, however, to arrange several or two reinforcing bars and let the nauon or some of them extend through only some of the brads. The tails intended for two or more brads for one and the same reinforcement bar 2 or 3 are arranged offset relative to each other in order to achieve a wedging effect. This shift can be achieved on different salts. An option is shown in Fig. 4. Does Or e.g. the hole 4 in the brad 5 is arranged laterally offset relative to the tail 6 in the brad 7 intended for one and the same reinforcing bar in such a way that the one-drum lines have the tail in the different brads 5 and 7, although not parallel but the center line of the tail 4 is coated. in addition to the extension of the center line of the tail 6. This Or has a displacement one plane parallel to the plane of the plate, in that the reinforcing bars are suitably arranged in the neutral bearing of the plate (ie usually in the center plane of the plate). This displacement means that after the ironing has taken place the brads in the joint edges are pressed against each other by the pressure which the reinforcing rods create, as these are forced through the drill halls displaced in relation to each other.

Genom att borrhalen g genom plattans i gjutningslage neutrala lager, inverka borrhalen endast obetydligt forsvagande, och plat-tan far god hallfasthet, Oven om den tillverkas a-v relativt tunna brader. By the drill tail passing through the plate's in casting layers neutral layers, the drill tail has only a slightly weakening effect, and the plate has good half - strength, even if it is made of relatively thin brads.

Genom att sammanhallningen mellan braderna astadkommes genom kilverkan utefter armeringsstangernas hela langd och ej Or koncentrerad till ett fatal punkter, blir sammanhallningen betydande och utan svaga punkter, som orsakar stor kassation efter en- 2— dast en eller ett par gangers anvandning. Sammanhallningen genorn de vinkelstallda armeringsstangerna medfor vidare, att det vid uttorkning icke är hela plattan, som krymper, utan varje brada krymper individuellt. Detta har den fordelen, att am plattorna torka i formen fore gjutning, uppsta mellan plattorna inga stora springor, som slappa igenom betongen, utan i stallet uppsta sma ofarliga springor mellan varje brdda i plattorna. Because the cohesion between the brads is achieved through wedge action along the entire length of the reinforcing bars and not concentrated to a fatal point, the cohesion becomes significant and without weak points, which causes large scrapping after only one or two times use. The cohesion through the angularly reinforced reinforcing bars further means that during drying it is not the whole plate which shrinks, but each brad shrinks individually. This has the advantage that when the slabs dry in the mold before casting, no large gaps arise between the slabs, which slack through the concrete, but instead small harmless gaps arise between each hole in the slabs.

Genom att borrhalen ej bilda en rat linje utan ha en mindre forskjutning i forhallande till varandra, finnes i plattan en initialspanning, som motverkar varje kraft, som strayer att skilja brdderna at. Because the drill tail does not form a straight line but has a smaller displacement in relation to each other, there is an initial voltage in the plate which counteracts any force which strays to separate the boards.

Da det i de fiesta fall torde vara med tva stycken armeringsstanger for att ge plattan effektiv sammanhallning och dt den kan framstallas av relativt tunna briider och med ett minimum av arbetskraft, bOr den kunna tillverkas till ett mycket lagt pris. Since in most cases there are probably two reinforcement bars to give the plate effective cohesion and since it can be produced from relatively thin slides and with a minimum of labor, it should be possible to manufacture it at a very low price.

Claims

Patent claim:

1. Angles in the manufacture of edge-fitting boards of edge-to-edge boards, which are held together by means of two or more welds of extending reinforcing rods, may be characterized by the fact that the hold for the reinforcing bars is taken up so that Mien for at least two different reinforcing bars form an angle with each other. the In two or more braces for one and the same reinforcing bar a-vsedda tail are arranged offset relative to each other so that the one-drum lines for the tail in the different widths are admittedly parallel or largely parallel but the center line of the hole in a brad is coated yid side can fiirlangningen of the center line of the Met in adjacent brada.

Forming plate, manufactured according to the method specified in patent claim 1. Stockholm 1948. Sung !. Boktr. P. A. Norstedt & SUner 480080