MXPA96006524A - Auto seat - Google Patents

Abstract

The present invention relates to a car seat that includes a polyolefin foam structure and a core of organic fibers bonded by means of an agglomerate

Description

AUTOMOBILE SEAT * DFSCP7PCIO The present invention refers to a car seat that is on and off or on »The parts of cars are being made every time. of lás ic, essentialmente? Polyurethane Foam »This plastic, however, has the advantage that it can not melt and is therefore difficult to break? 3 r. A a -jj 3a ~. IUretto poly foams possess a heavy weight 3 3 go high. It has been thought to manufactures car seats 1 from foam particles of pol pro leno mss lig as and can be ree-1ars, however this has failed due to the low elasticity of e - ^ foam and because ^ 1 The fact that it is made of a foam with f Jul.s closed and consequently that it does not breathe. It is the object of the present invention to develop seats for motor vehicles that can be reprocessed, which have qualities of comfortable and breathing air that are breathable. This object is achieved through the production of car seats. 13 is d A. a polyoleffo foam structure and B. a core of organic fibers that have been extruded from a plinth. Both the seat itself and the back rest can be manufactured from a combination of 3 m3tepa is of • ßt according to the present invention. J the concept of structure is understood the lateral parts, the arm supports and eventua} also the floor or the back side of the seat, that is to say, you scratch the seat that has a support function and for that reason that must be laughably e tabl s! the core covers the surface of the seat itself as well as the backrest support surface, that is to say 3 regions which are dilectly in contact with the driver's body and which therefore must be smooth, ? B3es and should rsi T ?. T. As a material for the structure, closed cell polyolefin foams can be used in principle. Particle foams are preferred which consist of numerous foam particles welded between e31as. Among the fine pollens, polietheno is considered •; he «Fc poli ro ileno, as well as copolymers of other wood and full prop. They prefer the »Copal Imeras of Prapilona with a melting point between 125 and. O ° C «Co or melting point is considered the aM or determined by the DSC method in a second foundry of a sample fpunto of f > It's crystal). The copolymer of the prop filled with 1 3"30% by weight, specifically with 1 to% by weight of wood and / or butene-1 are especially suitable. HE known as a particle foam, which can be obtained by melting foam particles, generally of an average diameter of S mm, preferably from 3 to 6 mm «The average density of the foam, ie the density measured in all onas of the? ~ formed body, is between 5 0. I and 0.15 g > : m3, preferably between .u and 0.08 g'cnC The foam structure is manufactured with foam particles by melting by hot dess, for example steam or hot water, in molds. This for? work allows the manufacture of shaped parts ? TO desired in a single process of work or without additional elaboration. Depending on the requirements, qualities or parts of the mold can be left in the mold. You can also integrate, in if you, metal or plastic attachments that resist the temperature. 55 The fiber core consists of organic fibers bonded together by means of a binder. The fibers to e uad s are fibers «..«, ". ., .Wl. f, hW. OCO ", UlU-. _, hemp, flax, yu e or banana. Finally, synthetic fibers, for example, polyamide fibers, polyester fibers or polypropylene fibers, can be used. Coconut fibers are preferred. The fibers, in general terms, are end or preferential fibers of 1 to 10 cm in length between 3 radas in a mat and joined between the lys by a binder. In the case of preferred coconut fibers, pp = p -? rz 5 first a thread of long fibers. The fibers are then corlanded and laid flat in the form of a mat. The bonding of the fibers therebetween is achieved by spraying or impregnation of the mat with an aqueous dispersion of the binder. The preferred binder is rubber in the form of a aqueous latsk which may contain the usual auxiliaries, for example pH modifiers, viscosity regulator and auxiliary of dispersion to the co-or auxiliary of vul C3 or rationing as for example to zinc, zinc, and ant IOM dantes. -2 Basically you can also use synthetic resins 1X > such as, for example, capitol 1, butadiene, styrene, acrylate, palivinyl acetate, and cobalt / acetate acetate, which may optionally contain crosslinking groups, such as n-e. 11 lacp lamid. After the pre-ion of 3rd mat of fibers with the binder is dried in a circulation oven at temperatures between 1 0 and -SJ? 130 ° C and the binder is evantua 1 vulcanized or well roticulada. From the mats manufactured in this way, nuclei can be cut out. It can also be placed 3ri3s superimposed layers, impregnate again with binder dispersion, dry and crosslink. The shape of the core can also be obtained by pressing in suitable steel molds at elevated temperature. In the finished core, the weight ratio between the binder and the fiber is, preference, 3 if to 3.1, special entity 1.2sl = »l.?íi. The core material passes through and therefore breathes. The density of the core material is, in general terms, within the range between 60 and 1 g / 3 | The thickness of the core can vary between 0.5 and 10 cm. A thickness of 1 to 5 cm is preferred. Depending on the cut of the core, said core may have different thickness zones. The union between the structure and the core can r > ^ 11 za r ^ e by means of fiber fleeces, made for example from plate or polyester, adhered to ii st uc ura and the core. It is also possible to manufacture the structure by direct fusion of the particles with the core or the union between the structure and the n: c: 3 o. The finished car seat also contains, generally, a covering of textile material as well as fastening elements and possibly refocusing devices and metallic elements to provide greater i ide.

Claims (1)

1. PCI TNDICACIO ES * 1. A car seat that includes A. a foam structure of pol lol ina and B. a core of organic fibers bonded by means of ur > agglomerate nt. 2 »A car seat according to claim 3, consisting of a back support and a seating area, both parts contain a sst-ruci-iir and a core. * I *? «3. A car seat according to the rei indication i, characterized in that the polyfoam foam is a polypropylene particle foam having a density comprised between 0.015 \ 0.15 g / em3. 4. A seat 3ulomóv? L according to the rei indication 3, characterized in that the fibers are interlaced and have a length comprised between l and 10 m. 5. A car seat in accordance with claim 1, c acteri ed because the # > ~ 3eo consists of 0 natural fibers, preferably coconut fibers. faith. A car seat according to claim 1, characterized in that the binder is vulcanized. 7. A car seat according to claim 3, wherein the binder is preferably a reticulated artificial resin. A car seat according to claim 1, characterized in that the structure and the core are adhered to each other by means of a fiber fleece. 9. A car seat according to claim 1, characterized in that the core is integrated without adhesive in the structure. 1 fifteen # 2?