FR2613408A1 - ROLL-UP DEVICE FOR RECOVERY, PARTICULARLY FOR SWIMMING POOL, AND METHOD FOR MANUFACTURING THE SAME - Google Patents

Abstract

THE INVENTION CONCERNS A ROLL-UP DEVICE FOR COVERING FOR CONTAINERS, IN PARTICULAR FOR SWIMMING POOLS, WITH A COVERING SHEET, COVERING THE OPENING OF THE CONTAINER, WHICH HAS ON ITS TWO LONGITUDINAL SIDES, LATERAL STRENGTH BANDS THAT ARE STRENGTHENED. LONGITUDINAL DIRECTION AND DISTRIBUTED THROUGH THE LENGTH OF THE COVER SHEET FOR THE RECEPTION OF SUPPORT TUBES. ACCORDING TO THE INVENTION, THE COVERING SHEET 2 HAS A LONGITUDINAL SEGMENT 4 TO THE LONGITUDINAL SIDES 6 TO WHICH ARE FIXED PREFABRICATED REINFORCED SIDE BANDS 8 AND THE LONGITUDINAL SEGMENT 16 ARE PREFABRICATED WITH A BAGUETTE SEWING IN THIS BAGUETTE, AND ARE STITCHED IN THIS BAGUETTE. 20, TO THE COVERING SHEET 2. THE INVENTION APPLIES IN PARTICULAR TO THE COVERING OF POOLS, SWIMMING POOLS, AND THE LIKE.

Description

The present invention relates to a rollable lapping device

  for containers, in particular for a swimming pool, with a cover sheet covering the opening of the container, which has, at its two longitudinal sides, reinforced lateral strips as well as loops tranversal to the longitudinal direction, and distributed along the length of the cover sheet, for receiving tubeless substrates, and it also relates to a

process for its manufacture.

  Overlay devices of the type indicated above are known, but have the disadvantage that they are luxurious and expensive by their manufacture, that each covering device must be produced precisely according to individual measurements and the sheet must be cut off. the individual and hemmed measurement. Then, the edge areas are provided with a wear-resistant reinforcement in the edge bearing zone, so there is, in this edge zone, a double layer of the material. In addition, the loops for the support tubes are fixed to the cover sheet, in that a strip of U-shaped cross-section material is arranged on the cover sheet and is connected to this sheet along of

edges of passers-by, laterally.

  The present invention has the task of configuring a recovery device of the prior art so that it can be manufactured simply and quickly and in particular, be partially

prefabricated.

  The imposed task is solved by a covering device in which the cover sheet has a longitudinal segment at the longitudinal sides of which prefabricated reinforced sidebands are attached and the loops are prefabricated by means of a rod seam and are connected by the seam in baguette, to the cover sheet. According to the method for obtaining the covering device, the longitudinal segment of the cover sheet is cut first, according to the desired size of this cover sheet minus the width of a sideband plus twice the width of the cover sheet. longitudinal seam and then cutting, of a feed roll of a prefabricated lateral band, two segments corresponding to the length of the longitudinal segment and connected to the longitudinal segment and then cutting, from a feed roller, a prefabricated pass segment corresponding at least to the width of the

  cover sheet, which is connected to it.

  In that the cover sheet has a longitudinal segment, the longitudinal sides of which are fixed prefabricated side strips and in that the loops are prefabricated with a seam rod and are connected by this seam rod to the sheet recovery, we obtain a significant simplification of the construction of the cover sheet and in particular of its manufacture. The sidebands and loops can be prefabricated by the meter and used for all sizes of the recovery device. Depending on the size of the covering device, it is simply necessary to determine the longitudinal segment of the cover sheet according to the size of the covering device, and then the prefabricated side strips and prefabricated loops, as merchandise by the meter, should simply be cut to length and connected to the longitudinal segment. Such a connection is, however, simpler than making each individual individually the entire covering device. Furthermore, sidebands and bystanders can be quite simply and fairly quickly prefabricated as merchandise by the meter and moreover in a shorter time, so they can be made available in very profitable times. This gives, in particular, also a regular annual distribution of the workload. In times of high economy, the covering device can then be obtained rather quickly because of the sidebands and

passers who are prefabricated.

  In addition, the sidebands are formed of a material that is stronger than that of the longitudinal segment; these bands have, at their free edges, a folded hem; the loops have a segment protruding from the seam stick on the cover sheet, which can be folded over the edge of the cover sheet and be fixed to the back thereof; on the back of the cover sheet are arranged the rods, in the area of the loops, which are advantageously connected to the seam rod or the passing portion, preferably being riveted; the seams protruding stick are arranged in the unwinding direction; the connection between the sidebands and the longitudinal segment as well as between the seams of sticks passers and the cover sheet is formed of welds. Furthermore, for the method according to the invention, the prefabricated pass is cut to a length which corresponds to the width of the cover sheet plus twice the segment to be folded of the seam rod, then it shortens the passer at both ends the length of the segment of the seam to be folded that is passed to the back of the cover sheet for a connection thereto; finally, the hem of the side band and the rod seam of the passer are formed, at the prefabrication, by wedge welding and seams in the making of the covering device, by high frequency welding. The construction according to the invention of the covering device makes it possible in particular to produce lateral strips made of a material that is stronger than that of the longitudinal segment, so the greater part of the longitudinal segment can be produced in a material that is less resistant than that required. for the sidebands. This causes not only a reduction in the surface load but in particular also a decrease in the price of the entire covering device, because the longitudinal segment can be made of a less resistant material and therefore also cheaper. By against the sidebands can be made of a stronger material, they can save a double layer, which reduces the manufacturing expense and expenditure of material. It is advantageous that the sidebands have at their free edges, a folded hem, which improves

solidity.

  The solidity of the arrangement of the loops on the cover sheet can be improved by the seam rod. Likewise, the chopsticks provided on the back of the cover sheet in the area of the loops increase the resistance capacity of the covering device, in particular in the zone

  borders which is subjected to high loads.

  In that the rod seam loops is arranged in the direction of unwinding, it facilitates unwinding and winding and decreases by

  elsewhere the solicitation on the seams to a minimum.

26 3408

  At the base, the junctions between the side strips and the longitudinal strips on the one hand as well as between the seams of the loops and the cover sheet may consist of seams which are formed by means of sewing thread, rivets or

a glue.

  The aforementioned method of manufacturing the covering device is particularly advantageous. The resistance of the connection between the loops and the cover sheet is increased by the aforementioned means, which avoids a danger

tearing of the passer-by.

  The possibilities of prefabrication offer

also many benefits.

  the invention will be better understood, and other purposes, features, details and advantages thereof

  will become clearer during the description

  explanatory following that made with reference to the accompanying schematic drawings given solely by way of example illustrating an embodiment of the invention and in which: - Figure 1 shows a recovery device in section and in plan view; - Figure 2 shows the device

  overlap of Figure 1, with a view to the longitudinal side

  dinal; FIG. 3 shows the covering device, on a container opening, in section along the line III-III of FIG. 1; - Figure 4 shows a segment of a prefabricated passer in schematic representation; FIG. 5 shows a segment of a prefabricated sideband in schematic representation; and FIG. 6 shows the extreme segment of the layout of a passer on a cover sheet, according to a section taken along line VI-VI of FIG.

figure 1.

  The drawings show a roll-up recovery device which consists mainly of a cover sheet 2, which has a longitudinal segment determined according to individual dimensions, in a relatively light material. On the two longitudinal sides 6 are fixed side strips 8 which consist of a stronger material, that is to say in particular thicker than the material of the longitudinal segment 4. The longitudinal segment 4 and the lateral strips 8 are connected together by a high-frequency weld at the location of

seams 10.

  The side strips 8, which consist of a fairly strong material, are prefabricated as articles by the meter and provided with a folded hem 12 which is formed by turning a strip 14 of material and welding with the rest of the material. Welding can advantageously be performed by a welding process

  in the corner of cheap and fast way.

  The loop 16 may also be prefabricated as an article by the meter, and it is formed of a strip of folded material, by welding the edge segment 18 into a seam rod 20. In this case also, the connection of the segment Border 18 advantageously occurs by welding by means of a wedge welding process. The loop 16 thus prefabricated in article by meter is sized according to the width of the cover sheet 2 in that a segment of the passer 16 is separated from a feed roller, whose length is greater than the width of the 2. The portion 22 of the loop is reduced to the width of the cover sheet 2, so only segments 24 of the seam rod 20 protrude from the width of the cover sheet 2. Then, the passer is connected by the seam rod 20 to the cover sheet, preferably by a high frequency welding process. The overhanging segments 24 16 are then returned to the back of the cover sheet 2 and welded to it, which increases the resistance of the loop 16 to the cover sheet 2 and reduces the risk of tearing. The loops 16, which are transverse to the length of the cover sheet 2 and pass over its entire width, serve to receive a support tube 26 which normally does not exceed beyond the length of the passer 16. Only the end of the covering device is provided a drive pin 28 with a quadrant profile 30 on which is movable a device for actuating or respectively unrolling the covering device, in the direction of the arrow. Such a training device can for example

to be a crank.

  As is particularly apparent from FIG. 3, the covering device rests on the opening

  34 of a container, in this case, a pool 36.

  The side strips 8 rest on the edge 38 of the pool 36 and prevent, by their recessed form, a wear of the covering device. In order to reduce the wear, in the area of the passing portion 22 and / or the seam 20 of the loops 16, there are also provided, below the cover sheet 2, rods 40 which are connected to

  passers 16, advantageously are riveted.

  The manufacture of the covering device occurs in a simple manner in that the longitudinal segment 4 is cut to size, that is to say that of the opening 34 of the container to be covered, or respectively of the pool 36. Then, the lateral strips 8, prefabricated in article by meter, on both sides of the longitudinal sides 6, are cut to the length corresponding to the longidinal segment 4 and are connected, by the seam 10, to the longitudinal segment 4,

advantageously being welded.

  Passers 16 also prefabricated as articles by the meter are cut to the necessary number, according to the width of the cover sheet 2 or with an excess of length which corresponds to the width of the sheet 2 plus twice the segment 24 of the rod seam 20, which must protrude from the cover sheet 2. the loops 16 are connected, at the predetermined locations, to the cover sheet 2, advantageously welded, then the segments 24 are folded below the cover sheet 2 and there

are also welded.

  Finally, the rods 40 are connected below the cover sheet 2, being connected, via the sheet 2, to the loops 16, in

being advantageously riveted.

  We thus obtain a method of manufacture

  particularly simple covering device.

Claims (10)

CLAIMS CATIONS   1. Roll-up covering device for containers, in particular for a swimming pool, with a cover sheet covering the opening of the container, which has, at its two longitudinal sides, reinforced lateral strips as well as loops distributed over the length of the container. the cover sheet and arranged transversely to its longitudinal direction, for the reception of support tubes, characterized in that the cover sheet (2) has a longitudinal segment (4) at the longitudinal sides (6) of which side strips are attached ( 8) prefabricated reinforced and that the loops (16) are prefabricated by means of a rod seam (20) and are connected by the seam rod (20) to the cover sheet (2). 2. Covering device according to claim 1, characterized in that the side strips (8) consist of a material which is more   resistant than that of the longitudinal segment (4).   3. Covering device according to claim 1, characterized in that the lateral strips (8) have at their free ends a hem folded down (12).   4. Covering device according to claim 1, characterized in that the loops (16) have a segment (24) protruding from the seam rod (20) on the cover sheet (2), which is folded over the edge of the cover sheet (2) and   is attached to the back of the cover sheet.   5. Covering device according to claim 1, characterized in that rods (40) are arranged on the back of the cover sheet (2) in the area of the loops (16), which are advantageously connected to the seam rod ( 20) and / or the passer part (22), advantageously being riveted.   6. covering device according to claim 1, characterized in that the seams rod (20) loops (16) are arranged in unwinding direction.   7. A covering device according to claim 1, characterized in that the connections between the side strips (8) and the longitudinal segment (4) and between the seams rod (20) passers   (16) and the cover sheet (2) are welds.   8. Production process of the device   covering according to any one of the claims   previous, characterized by firstly cutting the longitudinal segment (4) of the cover sheet (2) to the desired size of the cover sheet less than twice the width of a side strip (8) plus twice the width of the longitudinal seam (10) and then cutting, of a feed roll of a prefabricated lateral strip (8), segments corresponding to the length of the longitudinal segment (4) and connected to the longitudinal segment is then cut from a feed roller of a prefabricated loop (16), a segment corresponding at least to the width of the cover sheet (2) and is connected to to the cover sheet (2).   Method according to claim 8, characterized in that the prefabricated runner (16) is cut to a length which corresponds to the width of the cover sheet (2) plus twice the added segment (24) of the seam in rod (20), it is then shortened at both ends of the loop, the loop portion (22), the length of the segment of the seam rod (24) to fold down, we pass below the   covering sheet (2) and connected to it.   Method according to claim 8, characterized in that the hem (12) of the side band (8) and the seam (20) of the loop (16) are formed during prefabrication by a method of wedge welding and seams during the making of the covering device, by a welding method high frequency.