CN2271275Y - Compound ventilating cushion - Google Patents

Abstract

The utility model relates to a compound ventilating cushion. The utility model is characterized in that the compound ventilating cushion is formed by combining a lower cushion layer and an upper cushion layer; the lower cushion layer arranged on the bottom of the compound ventilating cushion is made of an independent air sac foaming object; the upper cushion layer glued above the lower cushion layer is made of a continuous air sac foaming object, and a plurality of ventilating holes are arranged on the upper cushion layer. The utility model which can be made into insoles, cushions, etc. has the advantages of raw material saving, a plurality of reclaimed material using, good permeability, and good tactile impression.

Description

The complex air-permeable pad

The utility model relates to a kind of complex air-permeable pad.

Known to the technology of going ahead of the rest, known various foaming body underbeds as seat cushion, shoe-pad etc., with regard to structure, generally can be divided into (one) and not have gas permeability (two) tool gas permeability two classes.

(1) do not have a gas permeability: main system makes with free-standing air bag foaming body, especially use the most general with EVA materials such as (ethylene-vinyl acetate copolymers), its advantage is cut after being foamed into plate object, and with hot pressing machine-shaping, manufacturing processing is easy and price is comparatively cheap according to required form; Its shortcoming then recovers not good for elasticity, uses the back easy deformation, and does not have a gas permeability because of tool stand alone type air bag.Moreover the dealer drops into the utilization again that waste material is reclaimed in the research of manpower financial strength in a large number recently, only because of except that above-mentioned disappearance, and the characteristic of reclaimed materials, especially the human body sense of touch is not good, so though have the absorption method of reclaimed materials still can't use in a large number.

(2) tool gas permeability: it is mainly made with continuity air bag foaming body, and as PU materials such as (polyurethane), its advantage is that elasticity is good, and elastic restoring force is strong, uses the back indeformable, and the continuity air bag is especially arranged, so have gas permeability, good the fitting of sense of touch contacts with human body; Its shortcoming then is, the PU material can't be gone hot-forming after foaming again, thus must make the mould of reservation shape earlier, the one-shot forming of foaming, the cost of manufacture height, and the PU material can't recycling, and environmental protection problem also is a big hidden danger.

Therefore, the foaming body underbed of all on the market all is confined to the character improvement of single material, as the additive improvement, and the improvement of foaming process, but basic disappearance still can't obtain breakthrough change.

The purpose of this utility model is to provide a kind of saving raw material, is easy to make, can use reclaimed materials in a large number, and the good complex air-permeable pad of air permeable effect.

The technical solution of the utility model is:

A kind of complex air-permeable pad is characterized in that: it is combined by underlayer, last bed course, and this underlayer is positioned at the bottom, and it is that free-standing air bag foaming thing is made; Underlayer top gummed should be gone up bed course, and bed course is made for continuity air bag foaming thing on this, and which is provided with most air-vents.

Effect of the present utility model is:

Can reduce the consumption of going up bed course because of the design of air-vent, underlayer then can use reclaimed materials in a large number, reduces environmental pollution, and because of behind the last underlayer gummed, has good hot pressing processing characteristics and gas permeability.And

1, high unit price but the material (as PU) that is suitable for the human body sense of touch is able to a large amount of savings.

2, processing and manufacturing moulding program is easy.

3, can use reclaimed materials in a large number, meet the environment requirements of the times.

4, gas permeability is respond well.

For further understanding structure, effect and the characteristics of this creation, cooperate graphicly now, be described as follows in detail:

Graphic explanation:

Fig. 1 sees stereogram outside this creation embodiment.

Fig. 2 is the generalized section of this creation embodiment.

Fig. 3 A-3I is the comparison schematic diagram that this creation embodiment and single material pad pressurized body change.

Fig. 4 is the perspective exploded view that shoe-pad is made in this creation.

Fig. 5 is the ventilative action schematic diagram that shoe-pad is made in this creation.

See also shown in Fig. 1,2, this creation is mainly by underlayer 10 and go up bed course 20 and forms, and wherein, this underlayer 10 is to be positioned at the bottom, and it is that foam thing or its reclaimed materials of free-standing air bag such as EVA (ethylene-vinyl acetate copolymer) forms through cutting.Bed course 20 on one is then glued together in underlayer 10 tops, should go up bed course 20 is that PU (polyurethane) equicontinuity air bag foaming thing is made, and the air-vent 21 that then is provided with some majorities on it to be increasing its air permeable effect, and goes up the bed course use amount because of air-vent 21 can reduce, and reduces waste material.For example, upper and lower bed course 20,10 thickness are identical, and then air-vent 21 shared volumes are the volume half of last bed course 20, and therefore, the volume of last bed course 20 then reduces 1/2nd relatively, only accounts for 1/4th of whole air-permeable mattress.

See also shown in Figure 3 again, change of shape schematic diagram when wherein Fig. 3 A-3C is depicted as PU material foaming thing pressurized, when its pressurized, because its elasticity is good and the relation of continuity air bag, change of shape is big, especially cross directional variations will be unfavorable for using, so having, the dealer reduces its frothing percentage, improving its amplitude of variation person, and after pressure removes, lengthwise phase pressurized still can reinstatement.And shown in Fig. 3 D-3F, change of shape schematic diagram when it is EVA material foaming thing pressurized, when its pressurized, because its tool stand alone type air bag, elasticity is relatively poor, distortion also mostly is linear deformation (thickness dwindles) greatly, and after the pressure releasing, under long-term pressure, EVA produces permanent deformation, can't restore to the original state.The change of shape schematic diagram of Fig. 3 G-3I during then for this creation embodiment pressurized, because the PU material of last bed course 20 adheres to underlayer 10, the situation of its pressurized transversely deforming is improved, but its elasticity, sense of touch are not influenced, and underlayer 10 also on average bears because of the pressure of last bed course 20, the situation of the irregular deformation of its pressurized is uniformly distributed in underlayer 10, so also must be improved.

The person of being even more important, bed course 10 under this creation is owing to adopt free-standing air bag foaming thing, and its hot-workability is good, behind upper and lower bed course 20,10 gummeds, can hot pressing make and want the shape finished, not influenced because of the not machinability of last bed course 20, and underlayer 10 more is fixed in lower floor, does not contact with human body, and as previously mentioned, it accounts for this and creates big partial volume, can use reclaimed materials in a large number, has good environment-friendly function.

And for example shown in Figure 4, it is the perspective exploded view that this creation is applied to shoe-pad.On it, underlayer 20, behind 10 gummeds, can be according to size, purposes is hot pressed into the shoe-pad of various reservation shapes, and sense of touch is good, advantage such as not yielding as mentioned above, as for its gas permeability, when both feet place on the shoe-pad of this creation, bed course 20 is gone up in i.e. contact, and be that the PU material is made because of it, make foot have comfort, and, double-legged weight application presses down because of making bed course 20,21 of the air-vents of 20 tools of bed course will originally be stored in air-vent 21 interior air because of being squeezed and from bottom to top discharge on this moment, make that air is circulated in the footwear, and reach its ventilative purpose (as Fig. 5).

The main effect of this creation, can be summarized as:

1, the feature of environmental protection: this creation can adopt a large amount of reclaimed materials (EVA) as underlayer 10, breaks through Commonly use the restriction of EVA reworked material use, make its recovery and recycle value of increasing material, make to reduce Cost and then reach the purpose of environmental protection.

2, economy: can use simultaneously reclaimed materials and non-reclaimed materials to form composite pad, and reclaimed materials can be lowered into This, the volume of non-reclaimed materials is saved, and makes it reduce manufacturing cost, also can save simultaneously overall volume reach through The demand of Ji property.

3, preserve the pad quality: characteristic, the advantage of EVA and PU material merged in this creation, and it is had Processability is good, gas permeability and the splendid effects such as sense of touch, the better quality of reservation pad.

Again this creation except being applied to shoe-pad, also can apply to general underbed, such as seat tool foam pad, mat Deng, it is the foaming body that applies to difference with identical technological means, to reach the effect identical with this creation, order And characteristics, and make the amplification of its scope of application.

Claims (1)

1, a kind of complex air-permeable pad is characterized in that: it is combined by underlayer, last bed course, and this underlayer is positioned at the bottom, and it is that free-standing air bag foaming thing is made; Underlayer top gummed should be gone up bed course, and bed course is made for continuity air bag foaming thing on this, and which is provided with most air-vents.

Images