IL46410A - Improved profile for building leakproof casings - Google Patents

Description

profile for building casings The present invention concerns an improved profile for building leakproof This profile permits assembling plates of various resulting in casings for use in the formation of illumlnable screens displaying letters or translucent or opaque forms for signboards and for industrial use In the specific case of constructing signboarde displaying letters or other the use of this profile affords a notable saving in labour costs because of its easy the characteristics of resistance to external influences and the aspect of the forms or letters built with this profile are preferable in regard to those built according to traditional he profile according to the invention is made up of a continuous strip of light metallic externally painted and finished in the desired The width of the strip is variable and the sides form rebutted ribs on the inside The ribs are single or On the interior strip surface and close to one of the ribs there is positioned a longitudinal prismatic piece of spongy of cellular or similar firmly affixed to the the edge which is closest to the border of the metallic strip does not reach the edge of the rib of the metallic border obtained by The rib together with the profile of spongy material permits a hermetic assembly with a plate perpendicular to the The edges of the plate applied to the interior surface of the rib zone which squeeze the spongy are joined to the metallic profile by means of screws or nails introduced from the The area close to the border of the metallic opposite the spongy is coated with a layer of solderable which joined to the interior metallic surface of the profile by means of an adequate The metallic surface with the coating material can be extended to the rim area of the metallic Assembly of the interior surface of this metallic border with another plate adequate material is carried out by means of applying the latter to the interior fold of the main profile rib and joining it by soldering the interior surface of the plate to the surface of solderable coated material on the main metallic The described profile makes possible the production of a casing due to the fact that the profile forms two parallel casing joining the surfaces which complete the prismatic One of the usually the front of the prismatic is joined in a permanent and the other plate which completes the is joined in a dlsmountable The permanent joint is carried out by interior strip soldering and the dlsmountable joint is that which is carried out by screws or similar joining in the area close to the edge with the interior sponge which is squeezed when the closing plate is Many casings of this type are formed employing very expensive moulds and which require cutting all the pieces of the back and to assembly was difficult in view of the different joints to be In the present the flexibility of the profile permits it to be easily folded to adapt the to the shape of the of which the profiles will be the corresponding lateral In the attached given as an a of a perfected profile for building leakproof casings is Figure8 1 and 2 represent the section and intetior side view of the while Figure 3 represents the half section of a box casing obtained with the help of these Figure 4 is a structure assembled the new while Figure 5 illustrates a special case of construction which varies in regard to the extent of the area with butirate Following the drawings one can see that the metallic of variable has its exterior surface treated with a special of any colour Normally used for metallic is chosen for lightness and resistance Joined with its On one of the edges o the metallic band there a lateral fold in the shape of a rib towards the inside surface On interior surface on the edge ponding to this a cellular polyurethane strip applied lengthwise paralle to the edge of the plate and which leaves the rib surface of the metallic strip On Interior surface of the metallic s rip on the opposit edge of the cellular polyurethane a butirate coating stuck The butirate area on the edge that forms a double fold when folding the border of the metallic sheet according to the rib layers 9 and The bend of the interior fold between the two ribs serves as a support for the piece of plastic material or similar that is placed between the two In the case of Figure 3 clearly seen that the plastic piece or similar which is held in position by means of the bend applying solder by means of apportation with which the solder connection made thanks to the existence of the butirate area adhering to the metallic plate The enclosure of the pr smatic casing section in Figure 3 for a wooden plank or other material which when placed between the profile ribs joined by means of screws with the heads on the outside It understood that the if used to form illuminated will have to be adapted to be dismounted to check or replace the bulbs or fluourescent tubes located This can be done by simply removing the screws and allows for easy dismounting of the plank The pressure that the edge of the plank exerts on the strip guarantees tightness of the casing has been obtained on two edges of the plate by means of soldering connection which is possible thanks to the coating and to the cellular polyurethane strips which are compressed in the profile joint with the plank which determines that the casing formed with this system has all its corners and edges leakproof or hermetically The metallic profile can usually on the border of external surface which corresponds to the interior a protruding moulding which serves as a retainer for a coated such as section whose function is ornamental and The plate held with screws is thinner in this case and of a plastic and only compresses the top area of the polyurethane In Figure 5 butlrate laminated coating is not extended to the area of the rib In this the metallic part of the double rib and lacks interior coating and the joining of sheet 25 with the butirate coating made by means of a solder strip in a similar way as the case represented in Figures 1 and In the typical case of assembling illuminated signboards displaying characters or according to Figure the external part is that of piece translucent to allow the inside light to pass while the interior part is plank or in Figures 3 and 4 Which can be removed at The improved profile for the building of leakproof casings will be manufactured with the appropriate materials according to the elements and its dimensions and other details that do not alter or modify its insufficientOCRQuality

Claims (2)

WHAT IS CLAIMED IS:

1. An ¾imprdved profile for building leakproof casings, -consisting of a continuous strip of light metallic sheeting, externally painted. and finished in the desired colour, the width of the said strip being variable and the sides forming. rebutted ribs on the inside edges, the said ribs being either single or double, characterised thereby that on the interior strip surface and close to one of the ribs there is positioned a fixedly adhering longitudinal prismatic piece of spongy material, of cellular polyurethane or similar, whose edge closest to the border of the metallic strip does not reach the edge of the rib of the metallic, border obtained by folding, the said rib together with the strip of spongy material permitting a hermetic assembly with a plate perpendicular to the profile,' the edges of the plate being applied to the.interior surface of the rib zone squeezing the spongy strip being joined to the metallic profile by means of screws or nails introduced from the outside. · .'-. ' ,-

2. An improved profile for building leakproof casings, according to claim 1, characterised thereby that the area close to the border of the metallic strip, opposite the sponge carrying side is coated with a layer of solderable material, which is joined to the -interior metallic surface of the profile by means of an adequate adhesive, the metallic , surface with . the thermo-solderabl'e coating material preferably extending to the rim area of the metallic border, assembly of the interior surface of this metallic strip's border with another plate of adequate material being effected by means of applying the latter to the interior fold of the . main profile rib and joining it by soldering the interior