FR2639926A1 - PROCESS FOR WINDING AN ELASTIC BAND, ESPECIALLY A CONTAINER, HAVING SELF-ADHESIVE CAPABILITIES AND THE BAND OBTAINED - Google Patents

Abstract

The process is remarkable in that one grasps one of the ends 1b of the strip 1; this gripped end 1b is folded back to apply it superimposed on said strip, along a certain length; the tape is wound from this folded end.

Description

Method for winding an elastic band, in particular a compression band, having

  self-adhesive capabilities and the

band obtained.

  The invention relates more particularly to adhesive and cohesive compression bands and more generally to any type of band having adhesion capacities. These strips after having been cut, by any known means and

  suitable, in different strips, are packaged in rolls.

  Such bands are wound under tension on a tube that does. mandrel office, which generates certain drawbacks. In addition to the fact that the mandrel increases the cost of the strip, there appears to be a certain difficulty in manually unwinding the strip at the level of said mandrel. In fact, as the strip unfolds, its diameter decreases, so that the unwinding torque exerted also tends to decrease. Furthermore, at the start of the winding, the tension is higher, so that under the effect of the adhesive mass, the parts in contact with the strip are closely and strongly bonded to each other, which tends, again , at

  make it difficult for the tape to unfold at this level.

  The object of the invention is to remedy these

  disadvantages, in a simple, efficient and rational way.

  More particularly, the invention proposes to simultaneously solve the double problem, on the one hand, of eliminating the winding mandrel and on the other hand, of being able

  unroll the entire tape without any particular difficulty.

  To solve each of the problems satisfactorily, this results in a particular method for winding the strip. According to the invention, the method is remarkable by the following steps: One of the ends of the strip is grasped; this gripped end is folded down to apply it superimposed on said strip, along a certain length; we roll it up

  strip from this folded end.

  The end of the strip is folded down in

  superimposition over a very significant length of 20 to 30 cm.

  Advantageously, it appears that the wound strip, under the process conditions, does not have any

winding mandrel.

  The process can be implemented by any known and appropriate means, automatic or semi-automatic, being

  able to process one or more strips simultaneously.

  The invention is set out below in more detail with the aid of the appended drawings in which: FIG. 1 is a perspective view of a strip

  wound on a mandrel according to the prior art.

  Figures 2 to 5 are perspective views

  showing the main phases of the process.

  Figure 6 is a perspective view of the strip

according to the invention.

  Figure 7 is a sectional view schematically showing the principle of the course arrived at the end of

bandaged.

  As indicated, the invention applies more particularly to all types of adhesive or cohesive elastic band, in particular for compression. In a perfectly known manner, such tapes are generally executed in great width and treated for adhesive hearths,

  then cut into strips (1) (Figure 1).

  According to the invention, in order to wind the strip (1), the procedure is as follows: - one of the ends (la) of the strip is grasped (FIG. 2); the folded end (la) is folded down, to apply it superimposed on the corresponding part (lb) of the strip (FIG. 3), melon a certain length; - from this folded and superimposed end (la - lb), we proceed to the winding of the strip

  (Figure 4) by any known and appropriate means.

  It is obvious that the above-mentioned different steps can be mechanized by different means to - automate the process according to the invention. Such means of implementation are not described, because they are & the scope of tdut skilled person and can be the subject of different

execution variants.

  As an indication, the end (lb) of the strip is folded over a length of very substantially 20 & 30

centimeters.

  Taking into account the specific winding characteristics, this results, in a particularly important and advantageous manner, on the one hand, the elimination of the mandrel and, on the other hand, an ease of use of the strip which can be very easily unrolled up to its final end. Indeed, after having unrolled the strip, when the user arrives at the end (la), it suffices that he manually grasps this end to move it angularly away from the corresponding part (lb) of the strip ( figure 6). This operation can be carried out without difficulty taking into account the effort that can exert

  the user resulting from the positioning of the parts (the -

lb).

  The advantages are apparent from the description. In

  in particular, it is emphasized that the cohesive or adhesive compression bandage is packaged in a roll without the use of a mandrel, being very easily unrollable for its

  use, Until its final end.

- 4 -

Claims (3)

  -1- Method for winding an elastic band, in particular of compression, having self-adhesive capacities, characterized in that one grasps one of the ends (lb) of the band (1) this gripped end is folded down (lb) to apply it superimposed on said strip, along a certain length;   the strip is wound from this folded end.   -2- Method according to claim 1, characterized in that the end (lb) of the strip is folded in superposition on   very significantly a length of 20 to 30 centimeters.   -3- Strip wound according to the method of claim 1 ', characterized in that it does not have a winding mandrel.