FR2639577A1 - UPHOLSTERED ARTICLE WITH SUPPORT SHEET - Google Patents

Abstract

A padded article 21 provided with a backing sheet 25, to suppress the occurrence of a smudge of liquid foam resin at the parting line of the mold elements in the manufacturing process, so that one can can omit the inconvenient work of removing said burr and the efficiency of the manufacturing process can be improved. The upholstered article 21 includes a backing sheet 25 combined with a padding element 23, said backing sheet having portions 25a extended beyond the padding element 23, said extension portions being intended to be kept level. lines of separation between the lower mold and the upper mold when these molds are assembled together.

Description

BACKGROUND OF THE INVENTION Field of the Invention The Present Invention

  relates to an item padded with a combined backing sheet, to be used as a seat for

automobile car.

Description of the Prior Art

  In a conventional manner, as shown in FIG. 1, in the manufacture of a padded article to be used as a seat for a motor car by manufacture of a padding element 3 from a liquid foam resin, a support sheet 5 is fixed to the bottom surface of an upper mold 13, and this upper mold 13 provided with the support sheet 5 is assembled to a lower mold 12 after introduction of the liquid foam resin into the lower mold, so that the '' the padded article comprising the padding element 3

  and the carrier sheet 5 combined together.

  However, when the padded article I is manufactured as described above, a burr of the liquid foam resin 3a appears at the separation line 15 between the upper mold 13 and the lower mold 12, the removal of which requires

inconvenient work.

Summary of the invention

  The present invention relates to a padded article

  provided with a support sheet, made it possible to remove the apparatus

  rition of the burr of liquid foam resin at the line of separation of the mold elements in the manufacturing process, so that the inconvenient work of removing said burr can be omitted and the efficiency of the baking process manufacturing can

be improved.

  This object of the present invention can be achieved by providing a padded article to be manufactured by a mold system comprising an upper mold and a lower mold, and

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  the padded article comprising: a padding element to be made from a liquid foam resin introduced into the bottom mold, and a backing sheet to be combined with the padding element, having portions extended therefrom padding element, the extension portions being maintained at the level of the dividing lines between the lower mold and the upper mold when the upper mold and the

  lower mold are assembled together.

  Other features and advantages of this

  invention will be highlighted in the following description taken

  in conjunction with The accompanying drawings in which: Figure 1 is a partial cross-sectional view of a mold in a method of manufacturing a conventional padded article, to explain the problem associated with manufacturing

  of the conventional padded article.

  Figure 2 is a partial cross-sectional view of an embodiment of the padded article provided with a sheet

  support according to the present invention.

  Figure 3 is a partial cross-sectional view of a mold in a method of manufacturing the padded article.

Figure 2.

  Detailed description of the embodiments

  If we refer to Figure 2, we will see an embodiment of a padded article provided with a support sheet

  in accordance with the present invention.

  In this embodiment, the padded article 21 comprises a padding element 23 made from a liquid foam resin, and a support sheet 25 combined with the element

  padding 23 to the bottom of the padding article

rage 21.

  The support sheet 25 is made of a nonwoven fabric, a coarse cloth or a batiste canvas, and has a thickness of approximately 3 mm. In addition, the carrier sheet 25 has

  dimensions such that an end portion 25a extends beyond

  beyond one side of the padding element 23 over an appreciable length i6 39577. This end portion 25a will be maintained at the level of the line of separation between an upper mold and a mold

  lower in the manufacture of the padded article 21.

  This padded article 21 is manufactured as follows.

  First, the backing sheet 25 is loosely attached to the upper mold 13 by means of nails or strips

double-sided adhesives.

  Then, as shown in FIG. 3, the upper mold 13 provided with the support sheet 25 is assembled to the lower mold 12 so that the end portion 25a is maintained at the level of the separation line 15 between the upper mold 13

and the lower mold 12.

  Then, the liquid foam resin 23a is introduced into the interior of the lower mold 12 through the orifices 26 and 27 provided.

  in the upper mold 13 and in the support sheet 25 respectively

  tively, through a nozzle 28. The liquid foam resin 23a undergoes

  then foaming to become the cushioning element 23.

  When the foaming process is complete, the padded article

  resulting 21 is removed from the lower mold 12.

  Due to the presence of the end portion 25a at the level of the separation line 15, no burr of liquid foam resin 23a appears when the liquid foam resin 23a is introduced inside the lower mold 23. Au on the contrary, the liquid foam resin 23a penetrates into the end portion 25a, so that this end portion 25a stiffens upon

  removing the padded article I from the lower mold 12.

  The padded article 21 thus obtained will then be covered with a skin cover, and the ends of the skin cover as well as those of the support sheet will be fixed to a seat carcass. The ends of the support sheet can be brought into contact with the seat frame directly

  while the ends of the skin cover are fixed by-

  top The backing sheet, in order to avoid damaging the skin cover by the seat shell. Thus, in accordance with the present invention, it is possible to obtain a padded article provided with a support sheet capable of preventing the appearance

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  Liquid foam resin burr at the Mold Separation Line in the manufacturing process, so that the cumbersome work of removing the burr can be omitted

  and thus improve the efficiency of the manufacturing process.

  It should be noted that the skin cover can be placed on the lower mold before the introduction of the liquid foam resin

  in order to obtain a padded article covered with a skin cover.

  In addition, many modifications and variations of the previous embodiments can be made without departing from the

  part of the present invention. Consequently, all of these changes

  cations and variations are included as part of the claims.

cations that follow.

Claims (2)

  1. A padded article (21) to be produced using a mold comprising an upper mold (13) and a lower mold (12), characterized in that the padded article comprises a stuffing element (23) made from a liquid foam resin (23a) introduced into the lower mold, and a support sheet (25) combined with the padding element at the bottom thereof, said support sheet having portions (25a ) extended beyond the padding element, said extension portions being maintained at the level of the dividing lines (15) between the lower mold and the mold   higher when these molds are assembled together.   2. The padded article according to claim 1, charac-   terized in that it further comprises a skin cover covering the padding element and having ends intended for fixing the padded article to a seat frame, and in that the extension portions of the sheet support are to be placed between the ends of the skin cover and the seat carcass when the padded article is fixed to this carcass of seat.