FR2546567A1 - Draught-excluder (sealing strip) which can be adjusted in width and thickness - Google Patents

Abstract

A compressible foam 1 with a self-adhesive 2 protected by a protective paper 5 having separation "cutouts" 3 interrupted by connection points 4 making it possible to use the excluder (strip) over its entire width, or else to separate one or more strands on one part only of the length in order to adhere in superposition on the strand(s) remaining so as to display an overthickness only at the point where this is necessary. When better adjusted gaps are available, removing one or more strands makes it easier to compress the seal, which results in an easier closure of the door. These features make it possible with a single product to have available any width and thickness of draught-excluder (sealing strip) according to the size of the gaps to be sealed.

Description

The caulking of the doors by the application of self-adhesive foam in the rebates of
doors and windows is a well known process. The quality of the foams used ranges from
polyurethane foam (polyesther) up to PVC foam.

In all cases, the difficulties encountered lie in the inequality of the days or
slots to close; because if you can choose a very thick foam strip for
the most open place will have to be soft enough to compress
enough so as not to obstruct the closing in more adjusted places (this at
detriment to the quality of the foam and its longevity).

On the other hand, if you choose a better quality foam, you must put at dispositial
of the user a sampling of width and in a lesser thickness because the
compressive strength can cause difficulties in closing the doors.

In places not compressed due to insufficient thickness it is necessary to take
a thicker bead or superimpose two or three strips.

The originality of the invention consists in replacing all these widths and thicknesses by a bead formed by a set of separable and detachable strands, according to
weaknesses predetermined longitudinally, which can also overlap in places
without bringing strong compressive strength.

In a preferred form of the invention, an adhesive foam (1) - PVC will be made
for example adhesive on one side with a double-sided adhesive (21 we will practice
bleeding or incisions (3) interrupted for example every ten centimeters by a
attachment point of approx. m / m (4), in the foam and not in the protective paper (5),
to facilitate handling of the bead when laying when removing the paper
adhesive protector.

In this way we leave the free choice to the installer to decide as and when
depending on the width # and the size of the gap to be closed.

By way of illustration, all the strands left united in the presence, for example, of a
iron door, (fig. 2), heavy and noisy when closed and with large
rebates.

In the presence of narrower rebates, the user will remove one or two strands, with
the advantage of having less resistance to compression, resulting in a closure
easier doors or windows so equipped (fig. 3)
On the other hand at the places where the slits to be closed exceed the thickness of the foam
adhesive it will be advantageous to superimpose a previously removed strand which comes
paste on the upper part of the strands already placed, will come to thickness according to the
need fig.4, in this way the combinations can vary according to the doors and the
more or less deformed places of closures, this may include
example (3 + 2 + lou 2 + 1 Fig. 4) or a single one (Fig 3), thus leaving all
possibilities depending on the size of the holes to plug without putting
so much matter where it is useless.

 The separation cuts will be made after cutting at the origin of the assembly without putting as much material where this is unnecessary.

The separation cuts will be made after cutting at the origin of all the strands, interrupting between the intervals that will be defined sufficiently short to allow easy handling of the bead and sufficiently long to allow easy separation of the different strands. .

 Another method would consist in using circular knives having at their circumference notches which would interrupt the cut at the place where one wants to keep the connection of the different strands. Thus, the present invention makes it possible to make available to the user all the widths and thicknesses that he might need to seal frames with very uneven slits, and this with a single product in a single presentation (which improves stock rotation and marketing suggestions for storage).

Of course, this caulking bead could have variations in width, presentation or quality without departing from the scope of the invention.

Claims (1)

 CLAIMS.  + = + = + = + = + = + = + = + = + = I. Adhesive caulking bead, consisting of a set of separable and detachable strands allowing it to be adjusted to the different thicknesses and widths of the slots to be closed.  II. Adhesive bead consisting of a set of strands according to claim I characterized in that the longitudinal separation slots are interrupted at regular intervals by a connection point making the strands detachable or usable as a unit. III. Adhesive bead consisting of a set of strands according to claim I & H characterized in that one or more strands can be detached over only part of the length to be stuck in superposition on the remaining strand (s), in order to present a superposition only where it is needed.