NO146505B

NO146505B - PROCEDURE FOR THE MANUFACTURE OF STEPS

Info

Publication number: NO146505B
Application number: NO2833/71A
Authority: NO
Inventors: O Allan Johnsson
Original assignee: O Allan Johnsson
Priority date: 1970-08-03
Filing date: 1971-07-27
Publication date: 1982-07-05
Also published as: DE2136618A1; NO146505C; SE335910B

Description

Foreliggende oppfinnelsen angår en framgangsmåte til å framstille trapper uten anvendelse av spesielle former. Spesielt når det gjelder yttertrapper har man. hittil vært nødsaget til å anvende betongstøpningspros- - esser o.l. , som forutsetter anvendelse av støpeformer og The present invention relates to a method of producing stairs without the use of special forms. Especially when it comes to outside stairs you have. until now been forced to use concrete casting processes etc. , which requires the use of molds and

.som medfører at :den ferdige trapp blir kostbar.og tung. .which means that: the finished staircase will be expensive and heavy.

Ved hjelp av oppfinnelsen kan man framstille ei trapp With the help of the invention, a staircase can be produced

for innendørs- eller utendørsbruk.uten anvendelse av noen som helst støpeform. Den på en slik måte framstilte trapp som på grunn av sin framstillingsmåte lett kan tilpasses etter det aktuelle behov, kan dessuten framstilles til en lav pris. samt hurtig,og får lav vekt og stor bestand-ighet mot vær og slitasje, og blir dessuten i stor ut-strekning glidningsfri. for indoor or outdoor use. without the use of any mold whatsoever. The staircase produced in this way, which due to its production method can be easily adapted to the current need, can also be produced at a low price. as well as fast, and achieves low weight and great resistance to weather and wear, and is also largely non-slip.

For gjennomføring av disse og andre formål er oppfinnelsen karakterisert ved de i kravene angitte kjenne-tegnende trekk. På tegningen vises et utførelseseksempel på oppfinnelsen, der fig.l i perspektiv og delvis oppskåret stand viser eh del av ei trapp, som i den oppskårne del befinner seg under framstilling, mens For carrying out these and other purposes, the invention is characterized by the characteristic features specified in the claims. The drawing shows an embodiment of the invention, where fig. 1 in perspective and partially cut away shows part of a staircase, which in the cut away part is under construction, while

fig. 2 er et delsnitt gjennom trappas inntrinn, i større målestokk. fig. 2 is a partial section through the staircase entrance, on a larger scale.

Den nye trapp framstilles i flere forskjellige trinn, som for en stor del følger i umiddelbar tilslutning til hverandre og av hvilke det første består i at plater av tremateriale, fortrinnsvis sponplater, til- " skjæres i overenstemmelse med ønskene med hensyn til trappas dimensjoner. Disse plater sammenføyes deretter på enkleste tenkelige måte til en trapperamme. Derved kan f.eks. ifølge fig. 1 de plater 1, som skal danne trappas inntrinn, fastspikres til de plater 2, som skal danne trappas opptrinn og til de, ikke viste plater, som skal danne trappas sidestykker. Den på en slik måte framstilte ramme behøver ikke noen som helst overflatefinish, og kan derfor framstilles hurtig og til lav pris. Behandlingen av denne ramme skjer hensiktsmessig slik at dens underside først sluttbehandles, hvoretter behandlingen av oversiden umiddelbart påbegynnes. Det er imidlertid prinsip-ielt mulig istendenfor å begynne med oversiden respektivt The new staircase is produced in several different steps, which for the most part follow in immediate connection with each other and of which the first consists in boards of wooden material, preferably chipboard, being cut in accordance with the wishes with regard to the dimensions of the stairs. These boards are then joined in the simplest imaginable way to form a stair frame. Thereby, for example, according to Fig. 1, the boards 1, which are to form the steps of the stairs, can be nailed to the boards 2, which are to form the steps of the stairs and to the boards, not shown, which will form the staircase's side pieces. The frame produced in this way does not require any surface finish whatsoever, and can therefore be produced quickly and at a low price. The processing of this frame takes place appropriately so that its underside is first finished, after which processing of the upper side immediately begins. However, it is in principle possible to start with the upper side respectively

å behandle begge sider samtidig, men i det følgende vil den mest praktiske framgangsmåte bli beskrevet. Behandlingen går. slik for seg at trappas underside hensiktsmessig behandles ved såkalt rulling, hvorved påføres et belegg 3 to treat both sides at the same time, but in the following the most practical procedure will be described. The treatment is going. so that the underside of the stairs is suitably treated by so-called rolling, whereby a coating is applied 3

av passende plastoppløsning, fortrinnsvis polyester. I umiddelbar "tilslutning til dette belegg påføres deretter ett"eller flere lag glassfibermatte 4 på den behandlete flate og glåss~f ibermatta gjennomfuktes herved med samme -plastoppløsning, som kom til anvendelse ved flatens be-handling. Forbruket av plastoppløsning kan anslås til 1-1'V2 kg7m^'sbenahdlet flate og ved et i ag glassf ibermatte på 450 g/m 2. Plastsjiktet, som sammen med glassfibermatta og^ytterlrigeré'<J>rbel.egg'danner trappas virksomme overflater, imp r eghéTrifcr^o^så trematerialet og øker dets seighet. Trematerialet-på—sin side holder glassfibersjiktene adskilt fra hverandre og ved sin stivhet muliggjør det anvendelsen av tynne glassfibersjikt, som på grunn av trematerialets stivhet uten noen ekstra foranstaltninger kan holdes plane. Etter at herdning har skjedd i 1-3 timer anbringes hensiktsmessig et tynt lag 5 av såkalt Gelcoat, hvoretter trappas underside er klar. of a suitable plastic solution, preferably polyester. In immediate connection with this coating, one or more layers of glass fiber mat 4 are then applied to the treated surface and the glass fiber mat is thereby moistened with the same plastic solution that was used during the treatment of the surface. The consumption of plastic solution can be estimated at 1-1'V2 kg7m^'sboned surface and with a glass fiber mat of 450 g/m2. surfaces, imp r eghéTrifcr^o^so the wood material and increases its toughness. The wood material-on-the-side keeps the glass fiber layers separate from each other and due to its stiffness it enables the use of thin glass fiber layers, which due to the wood material's stiffness can be kept flat without any additional measures. After curing has taken place for 1-3 hours, a thin layer 5 of so-called Gelcoat is suitably applied, after which the underside of the stairs is ready.

Trappeemnet vendes deretter og dets overside bestrykes med plastoppløsning og forsynes med glassfibermatte på samme måte som angitt ovenfor. Etter at herdning har funnet sted, maskeres trappas gangflater (l') og trappas øvrige, flater behandles med et lag (5) av såkalt Gelcoat. For oppnåelse av en kunststeinimitasjon rulles denne Gelcoat slik at det fås en knudret, ujevn struktur, hvoretter f.eks. svart farge ved en stenkesprøytnings- The stair blank is then turned over and its upper side is coated with plastic solution and supplied with fiberglass mat in the same way as stated above. After curing has taken place, the stairs' walking surfaces (l') are masked and the stairs' other surfaces are treated with a layer (5) of so-called Gelcoat. To achieve an artificial stone imitation, this Gelcoat is rolled so that a knotty, uneven structure is obtained, after which e.g. black color by a sprinkler

Claims

process is randomly applied in the mainly white Gelcoat surface. After the masking has been removed, the corridor surfaces are treated by coating, e.g. by rolling, with a first layer 6 of polyester plastic. e.1. The still sticky mass is then sprinkled with quartz sand or similar 7. The sand is sprinkled on liberally and the distribution takes place by subjecting the stair blank to vibrations, thereby removing excess sand. After the plastic layer has hardened after 1-3 hours, a further layer 8 of such a plastic solution is applied, which is applied in such a quantity that the individual sand grains are embedded in plastic. After curing, the stairs are finished. • For stairs for indoor use, instead of sand, you can use finely divided material of another kind, such as PVC shavings, sawdust, cork etc. Patent claim: 1. Method for the production of stairs, where a stair frame is produced by joining cut-to-size plates (1,2), characterized in that the stair frame is applied on all sides with a coating (3) of a hardening plastic solution, that one or several layers of glass fiber mat (4) are then placed in a manner known per se while continuing to be moistened with the plastic solution, after which the plastic is allowed to at least partially harden, that a further layer (5) of hard plastic, after the stairs' walking surfaces (l<1>) is suitably masked, placed on the other surfaces, that the walking rafts (1') after the masking has been removed, are treated with a layer (6) of hardening plastic, that sand or other, in this context, friction-increasing material (7) is applied to the still adhesive coating and that at least one additional layer (8) of thermosetting plastic is placed after curing has taken place.

2. Method according to claim 1, characterized in that the friction-increasing material (7) is placed in ample quantity, and that the distribution is carried out by subjecting the stair frame to vibrations or shaking, so that excess material is removed at the same time.

3. Method according to claim 1, characterized in that the outer surfaces of the stairs which do not form walking surfaces (1'), in order to achieve an artificial stone imitation, after the application of the further layer (5) of thermosetting plastic, are randomly pigmented with a suitable color by spot spraying.

4. Method according to claims 1 and 3, characterized in that PVC shavings, cork etc. are used as friction-increasing material (7) when making stairs for indoor use.