CH405672A - Ventilation channel - Google Patents

Description

Ventilation channel

In the construction of apartments and modern buildings, ventilation systems, natural or micamic, are assuming ever greater importance.

Many forms of execution of winding channels are known, most of which are made of light metals, sheet metal or mineral com@glomerates. Such channels have numerous drawbacks, in particular their weight, their high thermal conductivity and their unattractive appearance requiring pre-aerator coatings, as well as the difficulty of mounting them. In addition, the tightness of the junction of the elements of: case: channels is difficult to achieve and often does not give satisfaction.

The present Invention -has for its object a ventilation channel intended to obviate these disadvantages and comprising at least one. & 6ment formed of at least one waterproof condult.

This channel is characterized by the fact that this 616 mant is made of plastic material, by the fact that means allow the leaktight coupling without soldering of at least two components and each of their conduits and by the fact that Organs of fixation are pr6vus ssur each 616ment to perrnetter the assembly and in. ensure expansion within the framework of an Installation.

The drawing in the appendix represents, by way of example, one form of execution of a channel according to the invention and variants.

fig. 1 monstre, in perspective, a ventilation installation formed of single duct elements. The:s fig. 2 to 4 show multiple conduit versions of a 61 element as shown in FIG. 1.

fig. 5 is a longitudinal section in partial view of a multiple duct ediment.

The end. 6 monrore, in partial section, the fixation of the canals of an insW:ation.

The ventilation installation shown in fig. 1 comprises simple duct 6dements 1 gathered together two by two and having an ar61e <B>de</B> fixing 2 shape ä Z'ext6xiaur @de d6lement par Z: a junction of the Edges of a feudle of matiäne ,semi-rigid plastic farmer wraps 3 of the element. The junction of two 61sts is covered with a sheath 4.

In figs. 2 to 4 have 61st representations of elements formed from several ducts separated by walls 5 fixed in a watertight manner in the envelope s<B>of</B> these e16ments. sThis envelope is constituted by a feudle 6 in the shape of a U: behind the free longitudinal face is closed by a flat feudle 7 so as to leave on both sides a ridge 8, respectively ment 9″ for fixing.

The sealed junction of two elements and their respective conduits is shown in FIG. 5. On the extremities of these elements, enüe Jessquels an .hoist a space of a few millianetres for the expansion of the way, is glued a 61astic seal 10, partially covered by & ernents änterrealaires 11, respectively 12. A sheath 13 , constituted in the same material as the envelope, of the elemenbs, covers the first joint and is fixed to Vun of the nn@ter calar elements so as to be able to slide on the other.

The sepamation walls of the ducts, formed of parallel plates 5, are constituted by two parallel sheets 14, and 15 connected by U profiles 16. One of the ends @ of these p: arois presents a

opening 17 lined laterally by a Glas .ti seal 18. The other end is closed by a profile 16 and is extended by a rod 19 s, capable of coming to fit s @ etanohe manner in the opening 17.

The assembly of elements @forms of several ducts is thus carried out in a perfectly sealed manner, on the one hand, by the first seal 10 isolating the junction of two elements from the outside and, on the other Part, by the junction, of the walls of separation of the conduits, isolating these between them. The disassembly of an Element is simple: it is enough to remove the sheath and remove the seal 10 (which will be replaced when reassembled: later) then move axially F61ement to release: 1 the joint of the pa months .

In fig. 6, an sees the .mode of fixing the 61st ments against a wall or a ceiling. These elements have a fixed point, respectively two fixed points, for the elements formed by more than two conduits, constituted by a fixed tenon - in the middle of their edge, respectively of their two parallel edges, in case very close to the wall or the first ceiling . On the other hand, in the longitudinal openings 20 formed in the aretes on either side of their nnilieu, the Metes 2=1 of the guide toons 22 can slide. In this way, an e16meut can expand in the direction of the two ends, the elastic and sliding joint of the interior walls of the coupling of two contiguous elements absorbing their respective expansion.

The polyvinyl chloride used in the manufacture of the Elements forming the ventilation channel presents a high resistance against all atmospheric influences, against corrosion and against aging. The expansion of the elements as well as the expansion space left at their junction are designed for temperature variations extending between - 4011 C and -f- 600 C. The material withstands extreme conditions of relative humidity of ambient air and resists perfectly to the chemical agents of an aggressive atmosphere. The mechanical strength is good.

Another advantage of such a ventilation channel is that the constituent material must be non-flammable. Above 1800 C, the material melts and develops a gas which not only is not toxic, but also has the advantage of absorbing oxygen from the air and thus preventing, in , favorable conditions, the exiension .of fire.

The thermal conductivity of the material is very low and has 0.18 K eal/m h OC. This advantage is important: since it allows @ to use the ventilation channels @ as they are, @ without .coatings or accessory insulation: intended @ to reduce heat exchange between @ outside air; canals.

The material is deep dyed so that its color resists light. Ventilation channels

described are therefore washable and can remain visible thanks to the attractive appearance <B>of</B> the material and suitable technical and aesthetic assembly.

Claims (10)

CLAIM Ventilation channel, comprising at least one 616ment form of at least one waterproof .conduit, charac terized by the first .must that vet 61ement, is con: stitu6 in my, plastic tier, by .1e fact, that, means allow Watertight coupling, without welding of at least two jet elements, of each of their conduits: and by the fact that Fixing Devices are provided on each element to allow assembly and ensure expansion in the frame of an installation. SUB-CLAIMS 1. Channel according to the claim, characterized by the fact that said plastic material has a thermal conductivity not exceeding 0.20 K cal/m h o-C. 2. Channel according to the sub-claim 1, characterized in that said plastic material is opaque and colored. 3. Can.al according to sub-claim 2, characterized in that said plastic material is polyvinyl chloride. 4. Channel according to claim, comprising an Element formed of several ducts, caract@rise by the first fact that; e lesdts ducts are constituted by fixed walls of manner & reed Jans 1'616ment. 5. Channel according to claim, characterized by the first fact that Athe coupling means of two 61st ments are comstitu! es; by an elastic joint fixed in a 6tanche manner on each of their ends can tigues, an intermediate space allowing the expansion Elements in cooperation with the elasticity of the gasket, and by the fact that a protective sheath in plastic material comes over the gasket by being fixed on one of the ends of one of the intermediate elements and likely to couhsser on the other. 6. Channel according to sub-claims 4 and 5, characterized by the fact that the coupling means of the conduits are constituted by the fitting of the narrowed end of the Fune of the walls of a conduit into the corresponding opening of the conduit. The extremity of the other duct is lined with a lasak material of ch6ite tan. 7. Channel according to claim, -charact6ris6 by the first fact that said @ldm@ent is straight. B. Canad -according to .1a .revendication, characterized by the first need -that said e16ment is curved. 9. Channel according to the mevendication, compmen.ant a 616nent form of a single conduit, characterized by the first fact that said fasteners are constituted by at least one fixed tenon .au .eentre dune edge formed on the outside of the die by the junction of the sides of a feudle forming its envelope, and by the fact that at least one tenon can be smoothed longitudinally in an opening of the said edge, guiding the a6ment . 10. Channel .according to claim and sub-claim 4, characterized by the fact that said fixing members are -constituted by at least two tenons fixed at the center of two longiudnal iaretes formed on the outside of 1' &#ment by the 1st extension of the sides: of the -two faces of a U-shaped feudle, fenced by a flat felt, forming its ienvelope,: and therefore that @ at least two, auües sliding shanks Longitudi nally in an opening of said axes come guidex the element.