ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIAL, NON-METALLIC, TO BE USED IN MATTRESS, CHAIR OR OTHER PURPOSE

Abstract: The present invention refers to elastic elements - springs - in a convenient form, produced by injection moulding, of plastic, non-metallic materials and their support, interconnection and reinforcement components configurating the "Framework" of a mattress or chair, totally made of plastic, replacing metallic wire springs. With the advantages of: manufacturing, assembling and their respective cost, lightweight, non-oxidation, the possibility of manufacturing all framework sizes with only one model.

Description: D E S C R I P T I O N ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIAL,NON-METALLIC, TO BE USED IN MATTRESS, CHAIR OR OTHER PURPOSE. 5 PRECEDENCE THE INVENTION Metallic springs have been used many years in the manuf¬ acture of mattress,chairs,upholstery,etc. ,without much evolu¬ tion. Their manufacture,in steel wire becomes complex because of their automatic coiling by expensive machinery and their 0 furter need of tempering the steel. The automatic machinery that perform these two operation cost considerable amounts to¬ day and are accessible only to big Industrie. Besides inter¬ connecting these springs mannally to form the framework of a mattress or chair is complex,slow and subsquently expensive, 5 because it needs plenty of labor or very lighly cost automa¬ tic machinery. Further a framework of springs is heavy,noisy and sub- jec to oxidation. In the manufacture of mattress based on a framework of metalic springs there exists still a probleme - of difficult solution : the lining next to the springs with a material -usualy felt or jute sheets -so that the person using the mattress does not feel the hardness and irregulari¬ ty of the wires that make up the framework. PURPOSE OF THE INVENTION 5 With this invention, he author prupose to provide an elastic framework for mattress or chair that is efficient,non- -expensive lightweight,non-degradable by oxidation and of ea¬ sy manufacture possible mannualy and at high rate without spe- ciaised personned making the mattress acessible to most peo- 0 pie. RESUMED DESCRIPTION OF THE INVENTION The basic foundation of a mattress,chair,etc. ,is its fra¬ mework,making the unit homogeneous,solid and elastic to supp¬ ort the human body. 5 SUBSTITUTE SHEET In the present invent the elastic element,which we will call -springs- made in a convenient shape,form and size will manufactured in suitable material of injected plastic,in moul¬ ds. The resilence,flexibility and strength will be identical to a conventional spring of steel wire. The different kind of material utilised in the injection will give different charac- theristics of more or less flexibility to the spring,from the same mould. Those elastic elements,or springs as we night call them, will be interconnected by means where these fit together,that configurate a superior and inferior lid which in their turn will be interconnected by interdependent means,comprising the¬ se or independent means,shall form a complete framework with two plane surface,wich could be perforated for economy of mate¬ rial or to allow ventilating of the complex whole. DETEILED DESCRIPTION OF FAVOURED EXECUTION FIG. 1 A - Complet element (A 1 + A 2) A 1 - Simple element ( Equal) A 2 - Simple element (Equal) A 3 - Flection or elasticity zone. Y - Welding zone. 1.1 - Upper view of elastic element (spring) . 1.2 - Cut by " X-Z " of the elastic element. FIG. 2 B - Elements or means where the elastic elements will be applied (A) . B 1 - "Pins" that will irreversibily fix "A" to "B". B 2 - Cuts in "B" for economy in material and ventila¬ tion. FIG. 3 A - Elastic element. B - Support element to hold elastic, elements ( A ) . D - Means of reinforcement and bracing,though flexi¬ ble,wich keeps the framework edge parallel when over loade by excess weight-someone sitting on the edge of the bed. SUBSTITUTE SHEET FIG. 4 B - Support elements. B 1 - Helding "pins" that fix irreversibly. C - Means of interconnecting the different support elements ( B ). Elastic element. FIG. 5 A ~ Z - Shows restrictors or stoppers ( Claim 9 ) whi¬ ch are integrated in the means of support at the and of its cours,when the load exercised upen the elastic elements reaches its admissi¬ ble top value. X - Shows the restrictors or stoppers in the no lo¬ ad position. B - VIEW L - Shows an elastic element,with two compo¬ nents,in an eliptic shaped ring,without load ( Claim 10 ) still shwing the sequential varia¬ tion of ring thicknesses as well as its widths. VIEW S - Shows the upper view of the some element. VIEW Z - Shows the side view of the element,subject to a load,with an obvious elipse. FIG. 5.1 CLAIM 8 Different views of means of the - Circular Frames-. FIG. 6 1 - "Head" area where is very little load or weight. 2 - "Trunk and lip" area where the heaviest lod is exe-- rcised,concentrating between 70 and 75 % of the bo- dy weight. 3 - "Leg" area where relatively little wigth is exerci¬ sed. 4 - "Peripherie mattress" area subject to great loads, only momentarily,when getting in or out of the mat- tress. SUBSTIT FIG. 7 A - Means of interlinking the upper support means,th¬ at function like a hinge. B - Upper support means where the elastic elements are fixed. C - Elastic elements. D - Means of interlinking the lower elastic and fle¬ xible support means to allow the raising of the sectors of the mattresses only at the points whe- re they would open in angle. E - Means of lower support linked by means "A" in oil their unions except in the angle opening lines where the linking means "D" work. The present invent will be described as follows in it favourit execution : one elastic element (spring) FIG. 1 "A", made of two equal components, 1 and A 2 ,which will be manu¬ factured by injection of convenient plastic-non-metal material- by moulds. To configurate a complete elastic elements "spring",the components A 1 and A 2,although equal,shall be welded in "Y" by ultra sounds,glued or by any other process. Zone A 3 shall be the place where the element will basically flex whenever a lead shall be exercised on it,behaving like a spring. The fixing interconnection and support of the elastic elements is made through B ( FIG. 2 )shows 4 elastic elements (A)covered by one (B). Elasticelement (A) is adjoined to support element "B" by dovetail,and pins ( B 1 ) which shall definitively join "A" to "B" on the upper face,and another component on the lower face "A". Their turn,joints "C",which might make a complete whole or separated,shall make the compling of the various me¬ ans "B" which together might configurate a complete framework, of for exemple,a mattress. These " C " besides being joined by the refered "pins" might be welded or glued. SUBSTITUTE SHEET In FIG. 3 ,we further refer to means "D" whose function is bracing and reeforcing all the edges of both surfaces -one alove and the other-by the various means "B"that make up the framework. These reinforcements,equal produce in injected plastic shall support exceptional loads,as for exemple,some¬ one sitting on the edge mattress. Support elements "B" could have its surface perforated - FIG 2 .B 2 -not only to economise on material but also to allow air circulation between the framework and the elements that might be placed over them to make a mattress as for ex¬ emple : fets,cotton,wool material,etc.. Although the prodution refered hereby specifically re¬ fers to a mattress,chair,etc. ,it will be possibile for the experts in thiscraft to make alterations or other applicati¬ ons,without abondoning the extent of the present invent which is only limited by the following claims. S

Claims: C LA I M S 1^ - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS , MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIR OR OTHER PURPOSE,characterised by being manufactured by injection of suitable plastic mate- rial,by means of a mould in an adequate form,with the possi¬ bility of each element being made by only one or various pie¬ ces,which when glued or joined by any other process configu¬ rate anelastic element -a spring-capable of having the elast¬ icity,resilence and resistence needed in the interior of mat- tress,chair,etc. and that with the variation of only the pla¬ stic material utilised in the injection with the same mould, elastic and resiliente capacity,of that element-spring-. 2^ -ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIR OR OTHER PURPOSE,in accordance with the above mentioned claim,characterised by the elastic elements-spring-having a complement,other means,equally,manu¬ factured by injection,in suitable plastic materials, ith the function of supporting the superior and inferior parts of the elastic elements-spring-and interconnected between themselves, making a solid,resistente and elastic whole framework. 3a - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIR OR OTHER PURPOSE,in acordance with the aboves mentioneds claims,characterised by those me¬ ans of support and interconnection,forming a smooth upper and lower surface,resistent and flexible,capable of supporting the the layersof lining and stuffing such as felts,cotton,fi¬ bres,etc.. 4a - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIR OR OTHER PURPOSE,in acordance with the aboves mentioneds.claims,characterised by,those me¬ ans of support and interconnection of the -spring-or a number of them,varing the plastic material to give it or less flexibility. 5a - ELASTIC ELEMENTS AND- HEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIRS OR OTHER PURPOSE,in acordance wi¬ th the above mentioneds claims,characterised by means of suppo¬ rt and interconnection of-spring-having in the inside or other convenient location,means of non-reversibly fitted by means of loocked pins,for exemple. 6a - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIRS OR OTHER PURPOSE,in acordance with the above mentioneds claims,characterised being,or not,composed with equally convenient injected plastic means,that also appli¬ ed by grooving, elding or fixed by any other process allow for strengthening the periphery of the already built framework. 7a - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIRS OR OTHER PURPOSE,in acordance with the above mentioneds claims,characterised by allowing with only one set of elements an infinite variation of sizes adding more or less elements,allowing,for exemple,the building of fra- mework for all sizes,from one multiple,assembled only by the fi¬ tting of pieces. 8a - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIR OR OTHER PURPOSE,in acordance with the above mentioneds claims,characterised by having a shape su¬ ch as for exemple,circular frame,that might inserted into each other,in a position concentric to a diametral pivot,fixed by convenient means to the upper and lower support which will si¬ multaneously hold the elements together(ring in this case) ha- ving the possibility of veryng the load resistence in each ele¬ ment,and consequently its flexibility,compling more or less ri¬ ngs. With a single element,a ring made by injection and only one type of polymer we shall be able to obtein elastic elements with an infinity of resilence or load tension. 9a - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS , MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIRS OR OTHER PURPOSE,in acordance with the above mentioneds claims,characterised by the means of their uppe and lower support where the elastic elements are fi- xed,having restrictors to its flexibility,integrated,or not,in its owe form,to avoid deterioration to the elastic elements when there is an excesse load,wich might have more flexibility with¬ out risking rupture or diminishing efficiency. 10a - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIALS,NON-METALIC-, TO BE USED IN MATTRESS,CHAIRS OR OTHER PURPOSE,in acordance with the above mentioneds claims,characterised by its shape,to¬ gether with the thicknesses,wideness and type of polymer. In the exemplifying form,represented in FIG. 5,in an eliptical ring,wi- th progressive variable thickness in its peripheric arch,abbing it to obtain a progressive flexibility or resilence,depending or the load placed upon the elastic elements,consequently,giveing a lot of flexibility with a small load or a lot of rigidity with a large load or weigth. Ha - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIAL,NON-METALIC-, TO BE USED IN MATTRESS,CHAIRS OR OTHER PURPOSE,in acordance with the above mentioneds claims,characterised by,in the entirety of the elastic elements that make up a mattress,the ability to com- bine the differenticted elasticity,according to the mattress zo¬ ne wich is subject to lighter or lower weight of its user,with the possibility of having a plurality of zones wich distinct re¬ silence between each other,in each mattress. 12a - ELASTIC ELEMENTS AND THEIR RESPECTIVE COMPONENTS, MANUFACTURED BY INJECTION IN PLASTIC MATERIAL,NON-METALIC,TO BE USED IN MATTRESS,CHAIRS OR OTHER PURPOSE,in acordance with the above mentioneds claims,characterised by the existence of means of union of means of support,of the upper and lower elastic ele¬ ments with differentiated characteristics,allowing,for exemple: on top a flexible but not elastic means of connection that allows that,that area or areas of the mattress to raise at an angle, and so making it possible to very the height of the top or bot- ton of the mattress by the appropriate reising means.

Inventors: DIAS MAGALHAES QUEIROZ JOAO RO, DIAS MAGALHAES QUEIROZ, JOAO, ROBERTO
Applicants: DIAS MAGALHAES QUEIROZ JOAO RO, DIAS MAGALHAES QUEIROZ, JOAO, ROBERTO
Application year: 1993
Main classification: A47C27
IPC codes: A47C23, A47C27, F16F3