CN1211041C - Cushion structure - Google Patents
Cushion structure Download PDFInfo
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- CN1211041C CN1211041C CNB028099087A CN02809908A CN1211041C CN 1211041 C CN1211041 C CN 1211041C CN B028099087 A CNB028099087 A CN B028099087A CN 02809908 A CN02809908 A CN 02809908A CN 1211041 C CN1211041 C CN 1211041C
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- elastomeric element
- braid
- mentioned
- cushion structure
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Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/12—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton
- A47C27/122—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton with special fibres, such as acrylic thread, coconut, horsehair
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/12—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/10—Open-work fabrics
- D04B21/12—Open-work fabrics characterised by thread material
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/022—Lofty fabric with variably spaced front and back plies, e.g. spacer fabrics
- D10B2403/0221—Lofty fabric with variably spaced front and back plies, e.g. spacer fabrics with at least one corrugated ply
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/08—Upholstery, mattresses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/102—Woven scrim
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/40—Knit fabric [i.e., knit strand or strip material]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/40—Knit fabric [i.e., knit strand or strip material]
- Y10T442/413—Including an elastic strand
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Of Fabric (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Springs (AREA)
- Seats For Vehicles (AREA)
Abstract
A cushioning structure effective to alleviate a blood stream trouble and loads on muscles and to prevent an outbreak of trouble caused by them such as economy-class syndrome and the like is provided. The structure includes an upper elastic member (11) composed of a three-dimensional net member formed by connecting a pair of ground knitted fabrics disposed apart from each other using connecting yarn, and a spring constant in the range of initial load during a pressurizing process is set in the range of 0.1 to 20 N/mm and, at the same time, during a restoring process, a spring constant after restoring to an amount of displacement of 20 mm or less, at the latest, to 2 mm, is set to be lower than the spring constant in the range of initial load during the aforementioned pressurizing process. As a result, when a person comes into contact with a cushioning member by a sitting movement or a standing movement, temporal set in fatigue (stroke) of about several millimeters to about ten and several millimeters is created, thereby improving a feeling of fitting (compatibility) which makes a person feel comfortable, and effectively alleviate a blood stream trouble and loads on muscles.
Description
Technical field
The present invention relates to the Cushion structure that comprises that the 3 D stereo braid is constituted, particularly relevant be suitable for making alleviate that blood flow hinders or the Cushion structure of the seat structure of muscle burden etc.
Technical background
In recent years, slim, can bring into play high resiliency, the Cushion structure of Web materials (3 D stereo braid) that uses the three-dimensional structure with many spaces, aeration excellence simultaneously is by known.The 3 D stereo braid is to link yarn with many, with being separated from each other a braid combination over the ground of configuration, makes three-dimensional structure, presses aspect excellences such as dispersing characteristic, resilience elasticity at aeration, body.
But, load characteristic, cushion parts and the muscle that is higher than muscle in the load characteristic of cushion parts is under the very big situation of in shape difference, because the reaction force from the cushion parts (mainly is the power of normal direction in hard cushion parts, in the cushion parts hard but more soft than muscle, mainly be the power of shear direction), muscle significantly is out of shape and produces compressing, thereby brings the skew of blood flow or the increase of muscle burden.Relative therewith, compare with the load characteristic of muscle in the load characteristic of cushion parts, under the obviously low situation, can suppress the distortion of muscle, but because the deflection of cushion parts is big, the amount of being absorbed in is big, so mainly be shearing force work, brought the increase of muscle burden on the contrary.For example, under the situation that the soft polyurethane foam plate of lamination and viscoplasticity polyurethane foam plastic use, compare with the situation of using other materials, can produce quite soft load characteristic, but because the deflection of cushion parts is big, so the problem that the muscle burden is increased because of above-mentioned shearing force is arranged.
In addition, in recent years, particularly in aircraft, reported the example of the obstacle that so-called economy class syndrome has taken place to be called as, be used to promptly prevent that the huckle of buttocks landing from supporting strong seat structure etc., being considered to owing to being in the circulatory disorders that same posture causes for a long time is a reason, in the aircraft industry, and the motion of the seat structure that can lower this economy class syndrome morbidity of waiting in expectation.
The present invention be exactly in view of above-mentioned some, alleviate circulatory disorders or muscle burden to provide a kind of, to preventing to produce economy class syndrome etc. and being that the effective Cushion structure of obstacle of cause is a problem with these.
Summary of the invention
In order to solve above-mentioned problem, the result that the present inventor studies with keen determination is, be conceived to by making the load characteristic of the cushion parts (elastomeric element) that directly or indirectly contact with muscle, approximate with the load characteristic of people's muscle, because these cushion parts are along the warpage of muscle, even set, also can suppress the big distortion of muscle, for preventing that circulatory disorders etc. effectively so do not carry out necessary above softness.In addition, also be conceived to muscle, also can reduce its distortion, to preventing that local circulatory disorders etc. effectively for the outstanding position of bone etc.On the other hand, even also be conceived to by the slim 3 D stereo braid that also can bring into play high resiliency as described above is used as cushion parts (elastomeric element), just can reduce deflection, can alleviate the increase of muscle burden, this muscle burden be since the big distortion under the situation of the cushion parts that use softness produce shearing force caused, and in the little zone of displacement, by this load characteristic being set at the load characteristic more soft, can reduce reaction force to the muscle input from the cushion parts than pressure stroke.
According to above-mentioned point, the present inventor considers: as one of cushion parts (elastomeric element), use the 3 D stereo braid, utilize the hysteresis loss of this load characteristic simultaneously, in pressure stroke (forward stroke), make it have the akin characteristic of load characteristic with above-mentioned people's muscle, reach institute regularly after the point at the displacement of recovery stroke (backstroke), make it have the soft more little load characteristic of reaction force by being set at, it is moving just can to bring out body.In addition, consider in view of the above, by contact cushion parts such as the sit down action or the actions of standing up the time, the deformation (stroke) of the load about can producing from several mm to tens mm, in buttocks that contacts with the cushion parts etc., because during the position contact of bone and outstanding small size, because the deformation (stroke) of this load, fundamental sensation is less than reaction force, can adapt to very soon, can improve and make the people feel comfortable suitable sense (easily affinity), therefore, can alleviate circulatory disorders or muscle burden effectively, until finishing the present invention.
On the other hand, reducing on the basis of path increment, if flexibly set little load area and the load characteristic in little displacement region that arrives the equalization point in the load, do the deformation (stroke) of the load of above-mentioned several mm to about tens mm, though preventing that aspects such as circulatory disorders as described above are effective, but become big in contact area, apply under the situation of the load of institute more than deciding, the deformation of this load has the sensation of touching the end.Therefore, in the present invention, the sensation of touching the end that applies in order to prevent, the elastomeric element of other that the overlapping configuration in upright arrangement of bilayer or multilayer is linear by force, the spring sense is high perhaps also is conceived to these combination configurations side by side.
Promptly, the present invention provides a kind of Cushion structure, comprise elastomeric element and constitute, this elastomeric element be by by with link yarn will be separated from each other configuration one over the ground braid constitute in conjunction with the 3 D stereo braid that forms, it is characterized in that, load characteristic as this Cushion structure, the scope that will the spring constant in pressure stroke be set in 0.1-10N/mm, simultaneously in recovery stroke, with displacement below the 20mm, be returned to the later spring constant of displacement 2mm at the latest and be set at the spring constant that is lower than in above-mentioned pressure stroke.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, will be set in the scope of 0.1-5N/mm at the spring constant in the above-mentioned pressure stroke.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that the scope of hysteresis loss amount below 40N of pressure stroke in load characteristic and recovery stroke.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, the elastomeric element that is constituted by above-mentioned 3 D stereo braid, it is configured to, as the compressive plate by diameter 30mm, the load characteristic when separately this 3 D stereo braid being pressurizeed, the displacement in recovery stroke is below the 20mm, be returned at the latest that the later spring constant of displacement 1mm is lower than the spring constant of the pressure stroke in above-mentioned all load characteristic, reaction force is little.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, forms the above-mentioned 3 D stereo braid of the little structure of reaction force, and thickness is in the scope of 5-30mm.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, forms the above-mentioned 3 D stereo braid of the little structure of reaction force, and jog is set on one side at least, and the elasticity of recess and protuberance is different.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, form the above-mentioned 3 D stereo braid of the little structure of reaction force, for utilizing the structure of decay, this decay is slightly to be arcuation because raised part between the recess of adjacency, forms the cross section, this cross section slightly be arcuation protuberance bending direction elasticity and be accompanied by the binding yarn that on recess, disposes slip friction and produce.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, in the bottom of the elastomeric element that is made of the above-mentioned 3 D stereo braid that forms the little structure of reaction force, be equipped with other elastomeric element, these other elastomeric element can be brought into play and prevent to touch the function at the end when pressurization.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, above-mentioned other the elastomeric element that performance prevents to touch end function is reticulated elastomeric parts, planar elastomeric element or the netted or planar elastomeric element that supports by metal spring.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, with respect to the elastomeric element that is constituted by the 3 D stereo braid that forms the little structure of reaction force, above-mentioned other the elastomeric element that performance prevents to touch end function separate fixed gap set.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, except the elastomeric element that is made of the above-mentioned 3 D stereo braid that forms the little structure of reaction force and performance prevent to touch above-mentioned other the elastomeric element of end function, also lamination has other elastomeric element, and the face rigidity of the elastomeric element that this is other is than the elastomeric element height that is made of this 3 D stereo braid that forms the little structure of reaction force.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, top at above-mentioned other elastomeric element, lamination has the elastomeric element that is made of the above-mentioned 3 D stereo braid that forms the little structure of reaction force, performance prevents to touch above-mentioned other the elastomeric element of end function, separate fixed gap be provided in the bottom of above-mentioned other elastomeric element.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, is applicable to comprise that seat for vehicle and furniture with the various seat structures of chair, also have bedding to use or take advantage of the mat of a usefulness.
In addition, the present invention provides a kind of Cushion structure, it is characterized in that, is applicable to the seat structure of aircraft.
Description of drawings
Fig. 1 is the figure of formation that schematically represents the Cushion structure of relevant the 1st embodiment of the present invention.
Fig. 2 is the figure of formation that schematically represents the Cushion structure of relevant the 2nd embodiment of the present invention.
Fig. 3 is the figure of formation that schematically represents the Cushion structure of relevant the 3rd embodiment of the present invention.
Fig. 4 is the figure of formation that schematically represents the Cushion structure of relevant the 4th embodiment of the present invention.
Fig. 5 is the figure of formation that schematically represents the Cushion structure of relevant the 5th embodiment of the present invention.
Fig. 6 is the cutaway view of formation of representing an example of spendable in the respective embodiments described above 3 D stereo braid.
Fig. 7 is the figure of an example of expression one side's ground braid.
Fig. 8 is the figure of an example of expression the opposing party's ground braid.
Fig. 9 is the figure that illustration links the various arrangement methods of yarn.
Figure 10 is in the respective embodiments described above, and expression has the stereogram of the 3 D stereo braid of the jog that can be used as above-mentioned elastomeric element use.
Figure 11 is the cutaway view of 3 D stereo braid shown in Figure 10.
Figure 12 is used to illustrate the slightly figure of the effect of the spring key element of arcuation, and this spring key element is formed on the 3 D stereo braid shown in Figure 10.
Figure 13 is used to illustrate the slightly figure of the effect of the spring key element of arcuation, and this spring key element is formed on the 3 D stereo braid shown in Figure 10.
Figure 14 is in the respective embodiments described above, does not have other the 3 D stereo braid that can be used as jog that above-mentioned elastomeric element uses, is employed stereogram in test example 1.
Figure 15 is the chart of the independent load-placement property of the 3 D stereo braid of the routine 1-4 of the relevant test of expression.
Figure 16 is the chart of expression about the load-placement property of the Cushion structure of each embodiment.
Figure 17 is the compressive plate of expression by diameter 30mm, the chart of the load-placement property when the 3 D stereo braid with jog is pressurizeed.
Figure 18 is the compressive plate of expression by diameter 98mm, the chart of the load-placement property when the 3 D stereo braid with jog is pressurizeed.
Figure 19 is the compressive plate of expression by diameter 200mm, the chart of the load-placement property when the 3 D stereo braid with jog is pressurizeed.
Figure 20 is the figure that is used to illustrate the effect of the Chain cushion portion that is suitable for Cushion structure of the present invention.
Figure 21 is the figure that is used to illustrate the effect of the Chain cushion portion that is suitable for Cushion structure of the present invention.
Figure 22 is the figure that is used to illustrate the effect of the chair back that is suitable for Cushion structure of the present invention.
Figure 23 is the figure that is used to illustrate the effect of the chair back that is suitable for Cushion structure of the present invention.
Figure 24 is the figure that is used to illustrate the feature of the seat that is suitable for Cushion structure of the present invention.
Figure 25 is the chart of the load-placement property of the expression Chain cushion portion that is suitable for Cushion structure of the present invention.
Figure 26 is the chart of the load-placement property of the expression chair back that is suitable for Cushion structure of the present invention.
Figure 27 is the chart of the vibration characteristics of the expression seat that is suitable for Cushion structure of the present invention.
The specific embodiment
Below, the embodiment shown in illustrates in greater detail the present invention with reference to the accompanying drawings.Fig. 1 is the figure of the Cushion structure 10 of relevant the 1st embodiment of expression.The Cushion structure 10 of relevant the 1st embodiment is configured in above-below direction with 2 elastomeric elements 11,12 and forms.Wherein, top elastomeric element 11 forms jog and constitutes on the 3 D stereo braid.For example, under the situation of the seat portion that is applicable to seat structure, press fixed percentage elongation, suspension is laid between the bogie side frame (do not have and illustrate) of the subtend that forms this seat structure.In addition, for the characteristic that the 3 D stereo braid self is had is brought into play function fully, the thickness direction during by laying and the strain of face direction, in the little load area in the pressure stroke of load characteristic, be similar to the load characteristic of muscle, in the little displacement region in recovery stroke, in order to reduce reaction force, do not wish to apply high tension force and lay, wish to lay with percentage elongation discontented 5%.
Bottom elastomeric element 12 is that reticulated elastomeric parts or the planar elastomeric element by Pu Lumafuleikesi (Japanese プ Le マ Off レ Star Network ス, English plumaflex) etc. forms, under the situation that this Cushion structure 10 is applicable to for example seat structure as described above, at the bogie side frame that is equipped with top elastomeric element 11 (do not have diagram) or be equipped on the bracket component etc. of its underpart, by the metal spring 15 of end engaging, support by making it to engage with the other end of this metal spring 15.The spring performance that is produced by bottom elastomeric element 12 and metal spring 15, compare with the top elastomeric element 11 that is constituted by the 3 D stereo braid, linear be eager to excel, wish by with 11 combinations of top elastomeric element the time diameter 98mm compressive plate produced is similar to from the spring constant of 35N to the 100N spring constant with buttocks muscles.On the one hand, the zone of top elastomeric element 11 below 20N, on vast area, face rigidity height with respect to pressurization, by the compressive plate about diameter 30mm-diameter 20mm, push near the skirt section of protuberance of recess and both sides thereof the partial spring constant when measuring, since have the so-called rib that constitutes by jog this in shape, be set to the spring constant that is produced less than by bottom elastomeric element 12 and metal spring 15.In view of the above, produce, when the outstanding position of human body contacts, be easy to generate the deformation (with reference to Figure 13) of part, improved suitable sense in the deformation that makes above-mentioned load.
The top elastomeric element 11 that constitutes by the 3 D stereo braid, as described later, its thickness is about 5-30mm, the displacement stroke amount of thickness direction is little, simultaneously because the load characteristic in little displacement region is minimum, has the load characteristic that does not have reaction force substantially, so if load on more than institute decides, then generation is touched the end and felt.Therefore,, strengthened the restoring force of top elastomeric element 11,, prevented that the end of touching of the load area generation more than institute decide from feeling by this elastic force by having the bottom elastomeric element 12 and the metal spring 15 of linear strong spring performance.
The structure that also can have in addition, the spring performance that above-mentioned bottom elastomeric element 12 and metal spring 15 produced separately by the bottom elastomeric element that constitutes by reticulated elastomeric parts with face rigidity or planar elastomeric element.That is, also can use the article that have the spring performance of the spring performance that has above-mentioned metal spring concurrently and high face rigidity by the bottom elastomeric element separately.Certainly, in this case,, can directly lay the bottom elastomeric element with respect to bogie side frame.
Top elastomeric element 11 also can set to contacting when zero load with bottom elastomeric element 12, for example under the situation of the seat portion that is applicable to the seat structure, wishes configuration slightly with interval.In view of the above, top elastomeric element 11 is from until with between bottom elastomeric element 12 contacts, because fixed to some extent path increment, so because the distortion of the thickness direction that had of top elastomeric element 11 and the extension of face direction, can further improve the suitable sense in little load area and little displacement region.
Fig. 2 is the figure of expression about a form of the Cushion structure 20 of the 2nd embodiment of the present invention.In the 2nd embodiment, be the three-layer structure of the middle elastomeric element 23 that sets as top elastomeric element 21, bottom elastomeric element 22 and between.Top elastomeric element 21 is to be made of the 3 D stereo braid that is formed with jog, has top elastomeric element 11 identical functions relevant with above-mentioned the 1st embodiment.Bottom elastomeric element 22 is by for example the wire woollen yarn knitting planar elastomeric element for the reticulated elastomeric parts of the netted Pu Lumafuleikesi that forms (Japanese プ Le マ Off レ Star Network ス, English plumaflex) etc. or 3 D stereo braid etc. being formed, by metal spring 25, be provided on the suitable frame parts that for example form seat structure etc., have bottom elastomeric element 12 identical functions relevant with above-mentioned the 1st embodiment.
Middle elastomeric element 23 is formed by the 3 D stereo braid, is provided between the bogie side frame of the seat portion that for example forms the seat structure, is stacked in the bottom of top elastomeric element 21.Middle elastomeric element 23 load area be under the situation more than deciding, in little load area as described above, compare with the top elastomeric element 21 that is provided with for the load characteristic of bringing into play softness, face rigidity height, to prevent that it from surpassing necessary sedimentation, by this rigidity sense, increase when being present or the sense of stability in when couching, simultaneously the same with bottom elastomeric element 22, can suppress the end of touching of top elastomeric element 21 feels, in addition, also be provided with in order to alleviate the foreign body sensation that produces by metal spring 25 or bogie side frame.In addition, by with any of top elastomeric element 21 and middle elastomeric element 23, hope be both to be configured to each sidepiece be free end, when sitting down etc., by following the distortion of its input load, each sidepiece in the drawings, be (normal direction) rolling upward, and in the rotating direction motion, owing to the power that does not almost take place to shear direction, so can disperse input load, make the person's of taking a seat reaction force minimum.Therefore, the 3 D stereo braid of elastomeric element 23 in the middle of constituting is for bringing into play relevant function, or set with the tension force that is higher than top elastomeric element 21, or, reduce reaction force to the people for improving distortion permission (free degree), be the rolling free end and be configured as each sidepiece.In addition, adopt the load characteristic material higher of the thickness direction of himself than top elastomeric element 21, or the big material of deflection etc., it is set to have the abundant spring sense of elasticity.
In addition, surpass necessary sedimentation as long as middle elastomeric element 23 can prevent top elastomeric element 21, have can bring into play the elastic force of fixed rigidity sense get final product, be not limited only to the 3 D stereo braid.For example, the 3rd embodiment as shown in Figure 3, as middle elastomeric element 33, also can use form decide the felt pan of thickness.In addition, the structure of the top elastomeric element 31 in the Cushion structure 30 of the 3rd embodiment shown in Figure 3, the structure and above-mentioned the 2nd embodiment of the bottom elastomeric element 32 that supports by metal spring 35 are identical.
Fig. 4 is the figure of the Cushion structure 40 of relevant the 4th embodiment of the present invention of expression.This Cushion structure 40 constitutes the situation about using as the mat that bedding is used etc. of being specially adapted to, and top elastomeric element 41, middle elastomeric element 43 and bottom elastomeric element 42 are formed at lamination up and down.In addition, also as explanation in the above-described embodiment, wish that each elastomeric element 41-43 does not make each terminal part link, set to be free end, in view of the above, pursue the dispersion of input load, can reduce reaction force the people.But, even by making under the situation that these each elastomeric element 41-43 etc. link, if each terminal part with each elastomeric element 41-43, under the remaining state that the surplus that the distortion of can making produces arranged, link, this distortion is with identical as free-ended situation with these, then, can produce effect same as described above by the elasticity that each elastomeric element had.In addition, like this, by or with the terminal part of each elastomeric element as free end, or remaining deformable surplus (and even space) links, pursue the dispersion of input load, reduce effect, be not limited in present embodiment people's reaction force, even other embodiment also is same certainly.
Top elastomeric element 41, middle elastomeric element 43 and bottom elastomeric element 42 all are made of the 3 D stereo braid, in the present embodiment, are not that separately the different material of load characteristic is linked mutually, but pass through that lamination constitutes.
Top elastomeric element 41, same with the top elastomeric element 31 of the top elastomeric element 21 of top elastomeric element the 11, the 2nd embodiment of above-mentioned the 1st embodiment and the 3rd embodiment, in the pressure stroke of load characteristic, approximate with the load characteristic of muscle, in the little displacement region in recovery stroke, in this Cushion structure 40, have the function that reduces reaction force and set for making.Therefore, top elastomeric element 41 is set to the load characteristic that spring constant is low, softness is arranged.But in Fig. 4, different with Fig. 1-shown in Figure 3 do not form jog.Under the situation that forms jog, because forming the cross section between the recess of adjacency, protuberance slightly is arcuation, so tilt to set the binding yarn between the ground braid, this protuberance performance forms the function of an arcuation spring, can utilize the elasticity of its bending direction and horizontal direction.Therefore, in being formed with the structure of jog, can easily set soft spring constant, the load characteristic of spring constant that this is soft and people's muscle is approximate, even be deformed into necessarily, also has the deformation behavior of the load of reaction force minimizing.
Relative therewith, under the situation that does not form jog, if compare, then link between the ground braid that yarn is provided in subtend, and less tilt with the situation that is formed with jog, mainly be to decide load characteristic according to the buckling strength that links yarn.Therefore, do not forming jog, when giving the load characteristic of the softness the embodiment that resembles above-mentioned 1-the 3rd, by or will link yarn be designed to the braiding time point, by in advance fixed tilted configuration, or select to link the rugosity or the length of yarn rightly, just can be used as 3 D stereo braid with soft spring sense.In addition, passing through knit stitches, when the 3 D stereo braid being become have the structure of soft spring sense, except that the rugosity or length of above-mentioned binding yarn, also can by will link yarn set density, link yarn length, braid coil shape, braid coil dimension, constitute the ground yarn of ground braid material, link any one key element in the tight knot power in the bound fraction of yarn and ground braid or any key element more than 2 and make up and modulate.Certainly, in being formed with the 3 D stereo braid of jog,,, also can become structure with various spring senses even the amplitude of jog etc. are identical by the adjustment of same key element.
Middle elastomeric element 43 with the relevant the above-mentioned the 2nd and the middle elastomeric element 23,33 of the 3rd embodiment the same, load area be under the situation more than deciding, prevent the necessary sedimentation that surpasses of top elastomeric element 41, this top elastomeric element 41 is for being provided with in the little soft load characteristic of load area performance, by because the rigidity sense that displacement that this free end produced and elastomeric element self are had, be increased in when taking a seat or the sense of stability when couching, simultaneously, with bottom elastomeric element 42 together, for the end sense of touching of control top elastomeric element 41 is provided with.For example, can use and form 3 D stereo braid with spring sense harder than top elastomeric element 41.
Bottom elastomeric element 42 is the same with the bottom elastomeric element 12,22,32 of above-mentioned 1-the 3rd embodiment, pass through elastic force, be to set, compare, adopt 3 D stereo braid with linear high spring performance with top elastomeric element 31 in order to prevent to touch end sense.
In addition,, be not limited only to the 3 D stereo braid, have other parts of above-mentioned fixed characteristic, for example replace also can with felt pan, polyurethane foam plastic etc. as middle elastomeric element 43 in the 4th embodiment and bottom elastomeric element 42.
Fig. 5 is the figure of the Cushion structure 50 of relevant the 5th embodiment of the present invention of expression.This Cushion structure 50 is identical with the 4th embodiment, is the formation that is applicable under the situation that the mat used etc. as bedding uses, and being 6 elastomeric element 51-56 constituting of the three-dimensional knit fabric by three-dimensional structure constitutes at lamination up and down.
In the present embodiment, be configured in the 1st elastomeric element 51 and the 6th elastomeric element 56 that is configured in foot of topmost, identical with top elastomeric element 11 of above-mentioned the 1st embodiment etc., be to form by 3 D stereo braid with jog, in the little load area in the pressure stroke of load characteristic, approximate with the load characteristic of muscle, in the little displacement region in recovery stroke, has the function that is used to reduce reaction force, be set to the rigidity sense height in vast area, spring constant based on the part of the compressive plate of diameter 30mm is low, and soft load characteristic is arranged.
Be provided among 4 layers of elastomeric element between above-mentioned the 1st elastomeric element 51 and the 6th elastomeric element 56, on in Fig. 5 the several the 2nd the 2nd elastomeric element 52 and on the several the 4th the 4th elastomeric element 54 have and suitable functions such as middle elastomeric element 23 in above-mentioned the 2nd embodiment, load area be under the situation more than deciding, prevent the 1st and the 6th elastomeric element 51,56 surpass necessary sedimentation, the the 1st and the 6th elastomeric element 51, the 56th, in little load area, the soft load characteristic of performance is provided with, by its rigidity sense, be increased in when taking a seat or the sense of stability when couching, carry out load simultaneously and disperse, be provided with for suppressing people's reaction force or touching end sense.
On the other hand, the 3rd elastomeric element 53 and the 5th elastomeric element 55 have and the same spring performance of spring performance that is generated by relevant bottom elastomeric element 12 of above-mentioned the 1st embodiment and metal spring 15, load characteristic based on the compressive plate of diameter 98mm, zone below the above 100N of 35N, approximate with the load characteristic of buttocks muscles.In addition, 2-the 5th elastomeric element 52,53,54,55 that between the 1st elastomeric element 51 and the 6th elastomeric element 56, sets, so long as based on any one, can strengthen the rigidity sense, based on other any one, can bring into play high spring sense and get final product, unqualified to its laminated layer sequence or lamination number.In addition, in the present embodiment, for improving the function that load disperses, also hope is the same with above-mentioned the 4th embodiment, and making terminal part is free end.
Then, with reference to Fig. 6-Fig. 9, structure with regard to 3 D stereo braid 100 describes, this 3 D stereo braid 100 is as the top elastomeric element 11 in above-mentioned the 1st embodiment, top elastomeric element 21 in the 2nd embodiment or middle elastomeric element 23, top elastomeric element 31 in the 3rd embodiment, top elastomeric element 41 in the 4th embodiment, middle elastomeric element 43 or bottom elastomeric element 42, and the 1-in the 5th embodiment the 6th elastomeric element 51-56 uses.As shown in Figure 6, this 3 D stereo braid 100 is made of stereoscopic three-dimensional, this stereoscopic three-dimensional structure has a braid 110,120 over the ground of the configuration of being separated from each other, and this one over the ground between the braid 110,120 back and forth, many of both combinations are linked yarns 130.
One side's ground braid 110 for example, as shown in Figure 7, is the silk that forms from the twisted ultimate fibre, by in the stringer direction and walk crosswise that flat braid tissue also continuous on any one direction of direction (thin) forms.With respect to this, the opposing party's ground braid 120 for example, as shown in Figure 8, from the silk that the twisted short fiber forms, forms mesh with cellular (hexagon), than the big coil structure of a side ground braid 110.Certainly, it is an example that this braid is organized into the end, also can adopt thin ocular tissue or cellular beyond the braid tissue.Be incorporated into this one over the ground between the braid 110,120 because link yarn 130, make a side ground braid 110 and the opposing party's ground braid 120 keep fixed interval, so to the 3 D stereo braid 100 that becomes three-dimensional mesh knit goods given fixed rigidity.
To not in addition restriction especially such as the rugosity of the ground yarn that forms ground braid 110,120, as long as can make three-dimensional knit fabric have necessary rigidity, knit operation simultaneously and in not difficult scope, select.In addition, as the ground yarn,,, wish to use bicomponent filament yarn or span silk from the viewpoint of the softness of liquor style and surface touch etc. though also can use mono filament.
As linking yarn 130, wish to use mono filament, rugosity more suitable in 167-1100 dtex scope.Can not give restoring force good resiliency in bicomponent filament yarn, in addition, rugosity then is difficult to obtain high rigidity if be lower than 167 dtexs, and is then really up to the mark under the situation that is higher than 1100 dtexs, still can not obtain the springiness (resiliency) of appropriateness.Promptly, as linking yarn 130, by adopting the mono filament in the above-mentioned scope, to the person's of taking a seat load, the distortion of the coil by constituting various places braid 110,120 and link the lodging and the characteristic of buckling of yarn 130, and then this characteristic of buckling is given the restoring force of binding yarn 130 of the adjacency of spring performance, just can support, that is, can support by the characteristic of buckling with restoring force, can become spring performance, can not produce the softness structure that stress is concentrated with softness.In addition, be formed with under the situation of jog, as described later, because can form the slightly spring key element of arcuation of cross section, so can further give soft spring performance.
For as the ground yarn or link the material of yarn 130, do not limit especially, for example, can list the natural fiber of the synthetic fibers of polypropylene, polyester, polyamide, polyacrylonitrile, artificial silk etc. or regenerated fiber, hair, thin,tough silk, cotton etc.Can use above-mentioned material separately, also these can be used in combination arbitrarily.What wish is to be the thermoplasticity polyester fiber of representative with polyethylene terephthalate (PET), polybutylene terephthalate (PBT) etc., with nylon 6, nylon 66 etc. is the polyamide-based fiber of representative, with polyethylene, polypropylene etc. is the TPO fiber of representative, perhaps these fibers is carried out the combination more than 2 kinds.In addition, polyester fiber is excellence aspect usability, also is well suited for.In addition, the shape of the silk of yarn or binding yarn 130 is not limited yet over the ground, and circular cross-section silk, odd-shaped cross section silk etc. all can.
As the arrangement method (chorionic villi) that links yarn 130,, then more particularly, for example can be divided into kind as shown in Figure 9 if under the state of observing the binding yarn 130 that links various places braid 110,120 from the side, represent.(a) and (b) are substantially vertically to be programmed into straight barrel type between the ground braid 110,120 with linking yarn 130, and wherein (a) is 8 word shapes and is woven to straight tube, (b) is merely to be woven to straight tube.(c)-(e) be between ground braid 110,120, be woven to the chiasma type that binding yarn 130 intersects halfway, wherein (c) intersection is 8 word shapes, (d) merely is woven to intersection, (e) is per 2 and converges intersection (dual crossing).In addition, shown in (c)-(e), make under the situation that links intersection, tilted configuration between the yarn 130, with will link yarn 130 and be located vertically in the form of ground between the braid 110,120 compare (with reference to (a) and (b)) substantially, link the buckling strength of yarn 130 by each, can keep sufficient restoring force on one side, Yi Bian give the spring performance of the big softness of compression ratio.
Here, when the 1st, the 6th elastomeric element 51,56 as the top elastomeric element 11,21,31 of above-mentioned 1-the 3rd embodiment and the 5th embodiment uses, as Figure 10 and shown in Figure 11, above-mentioned 3 D stereo braid 100 is processed as structure with recess 150 and protuberance 160.That is,, be processed as, decide at interval at each along walking crosswise direction with respect to 3 D stereo braid 100, make configured separate one braid 110,120 is approaching over the ground, in view of the above, formation recess 150, formation protuberance 160 between the recess 150,150 of adjacency.
Recess 150 can only form from side's side one over the ground in the face of braid 110,120, also can form from both sides as Figure 10 and shown in Figure 11.As make ground braid 110,120 near and form the means of recess 150, except that deposited means, adhesion means, also can use the stitching means of sewing up by sewing machine, further, make and melt the knot fiber, make and melt means that the knot fibers melt engages etc. by between the ground braid 110,120.Wherein, wish to use vibration fusion means.This is in order to be avoided melting the rigid bodyization at knot position, and bond strength is also very strong simultaneously.
Like this, by forming recess 150, in the formation position of this recess 150, the binding yarn 130 that is configured in this zone produces or depression, further, and by recess 150, zone at the protuberance 160 of adjacency, link that yarn 130 is moved and skew gradually, in this zone, near the binding yarn 130 on the limit joint that interweaves.Like this, the result who engages that interweaves is this binding yarn 130, it clamps the both sides of the 130a of portion that interweaves, with respect to become separately in conjunction with the ground braid 110 of object or ground braid 120, can bring into play as the function of spring key element (distortion key element) independently separately.Therefore, shown in the standard of Figure 12, begin from the 130a of the portion that interweaves of the binding yarn 130 that a certain recess 150, interweaves, between till the 130a of the portion that interweaves of the binding yarn 130 that in the recess 150 of adjacency, interweaves, comprise ground braid 110 and the binding yarn 130 that is configured in this zone, formation is looked at as the structure of decay key element, this decay key element be owing to the cross section slightly arcuation spring key element and thread between friction produce.
Therefore, 3 D stereo braid with jog, the spring rate of its recess 150 and protuberance 160 is different, when protuberance 160 during because of load load compression, situation about using with do not form jog on 3 D stereo braid 100 is compared, and the buckling strength that links yarn 130 is little relatively, is difficult to show the characteristic of buckling, shown in the imaginary line of Figure 12, the cross section that includes the binding yarn 130 that interweaves the slightly spring function of the bending direction of the spring key element of arcuation wants big relatively.That is, the spring performance of protuberance 160 is if compare with formed 3 D stereo braid under except the similarity condition that does not form jog, and spring constant is little, from the easy deformation of small load area, is difficult to show the characteristic of buckling.Therefore, be formed with the 3 D stereo braid of jog if compare with the situation that does not form jog, then the maximum of hysteresis loss amount diminishes, the linear raising.But, in this load characteristic, common 3 D stereo braid is because the friction between the silk when linking yarn 130 answers, perhaps because in having the 3 D stereo braid of jog, the rubbing action between the silk is on the above-mentioned elasticity of flexure, so the friction between the silk of recess further increases, during answer, even load is 0, owing to lag behind, return motion also is expressed as and the similar characteristic of viscoelastic body that postpones.Consequently according to input power, the direction of distortion etc. changes, and has an effect with input power corresponding spring key element or decay key element.
In addition, in being formed with the 3 D stereo braid of jog, in recess 150, link yarn 130 joints that interweave,, also give the elasticity that it stretches on square crossing direction slightly with respect to the formation line of recess 150 by making.Therefore, when on the seat frame of seat structure etc., laying, except that what produce at thickness direction, because the cross section is slightly outside the springiness of the bending direction that produced of the spring key element of arcuation, by forming the slightly binding yarn of the spring key element of arcuation of cross section, also be applied with omiting the elasticity (springiness) that produces on the face direction of square crossing,, further express this and stretch in order to reduce spring constant with it.Further, by increase because of the friction between the silk produce with the similar characteristic of viscoelastic body, attenuation characteristic also increases.Therefore, with respect at each the bottom elastomeric element 12,22,32 shown in above-mentioned 1-the 3rd embodiment, by make top elastomeric element 11, middle elastomeric element 23,33 separate separately fixed gap set, the flexible function of bringing into play effectively of the transverse direction of each the top elastomeric element 11,21,31 that is constituted by 3 D stereo braid with jog, the lag characteristic of replying action manifests more significantly, and attenuation ratio also increases.
In addition, as shown in figure 13,, when sinking, extrude laterally, produce the deformation of part because protuberance 160 distortion of the both sides of recess 150 in the moment of contact, are clamped in human skeleton and outstanding position (compressive plate that roughly is equivalent to diameter 30mm).Further applying the vast area of load on, when being subjected to pressurize thereafter,, all support load by the 3 D stereo braid, by having such jog, because represented distortion as shown in figure 13, so can improve the suitable sense in little displacement region.
The the 1st, the 6th elastomeric element 51,56 of the top elastomeric element 11,21,31,41 of the respective embodiments described above and the 5th embodiment, has soft spring performance, and reduce the reaction force below deciding displacement, under big situation such as the deflection of top elastomeric element 11,21,31,41 etc., shearing force is moved on muscle, has brought the increase of muscle burden on the contrary.Therefore, each top elastomeric element 11,21,31,41 etc., unlikely very big for making its maximum deformation quantity, wish to form comprise a pair of bottom braiding thickness (being formed with under the situation of jog the thickness of protuberance) in the scope of 5-30mm.
(test example)
To can be used as the top elastomeric element 11 of the 1st embodiment shown in Figure 1, the top elastomeric element 21 of the 2nd embodiment shown in Figure 2, the top elastomeric element 31 of the 3rd embodiment shown in Figure 3, and the top elastomeric element 41 of the 4th embodiment shown in Figure 4, the independent load characteristic of 3 D stereo braid (testing routine 1-4) that the 1st, the 6th elastomeric element 51,56 of the 5th embodiment shown in Figure 5 uses is measured.Mensuration is the speed of dividing by with 50mm/, pushes that the circular compression plate of diameter 200mm carries out.The result as shown in figure 15.
In addition, test routine 1-4 the 3 D stereo braid create conditions as follows.Being configured to of the 3 D stereo braid of test example 1 do not have jog, as shown in figure 14, between the rib portion (strap) 200 and rib portion 200 that forms separating or several wales, has spatial portion 210.On spatial portion 210, the scope around 1 and even a plurality of coil are walked crosswise forms linking part 220, the rib portion 200 of crosslinked adjacency.Test routine 2-test example 4 as Figure 10 and shown in Figure 11, all form jog.Comparative example is not except forming recess by the vibration fusion, identical with creating conditions of test example 4, compression ratio is 13.2%, and elasticity of compression rate is 98.1%.
Test example 1
Volume machine: double-needle bed raschel tricot machine (9 needle cycle number/2.54cm, needle guard spacing 15mm)
Wale density: 10/2.54cm
Coil is walked crosswise density: 14/2.54cm
Compacted depth (one distance between the surface of braid) over the ground: 11.5mm
The ground yarn of one side's ground braid: 1170 dtexs/96f polyester BCF bicomponent filament yarn (the processing silk curls)
The ground yarn of the opposing party's ground braid: 660 dtexs/192f polyester BCF bicomponent filament yarn (the processing silk curls)
Link yarn: 660 dtexs/1f polyester
The tissue of one side's ground braid: the alternative construction of 2 wale meshes
The tissue of the opposing party's ground braid: through suede pillar stitch
By the ground yarn of a side ground braid with link the total rugosity of the formed pinprick of yarn: 1830 dtexs (part is 3000 dtexs)
By the ground yarn of the opposing party's ground braid with link the total rugosity of the formed pinprick of yarn: 1980 dtexs
The compression ratio of rib portion: 49.5%
The elasticity of compression rate of rib portion: 98.8%
The compression ratio at rib portion and other positions poor: 5.2%
The amplitude of rib portion: 6 wales
The amplitude of spatial portion: 1 wale
Test example 2
Volume machine: double-needle bed raschel tricot machine (9 needle cycle number/2.54cm, needle guard spacing 15mm)
Wale density: 10/2.54cm
Coil is walked crosswise density: 14/2.54cm
Compacted depth (one distance between the surface of braid) over the ground: 11.5mm
The ground yarn of one side's ground braid: 1170 dtexs/96f polyester BCF bicomponent filament yarn (the processing silk curls)
The ground yarn of the opposing party's ground braid: 660 dtexs/192f polyester BCF bicomponent filament yarn (the processing silk curls)
Link yarn: 660 dtexs/1f polyester
The tissue of one side's ground braid: the alternative construction of 2 wale meshes
The tissue of the opposing party's ground braid: through suede pillar stitch
By the ground yarn of a side ground braid with link the total rugosity of the formed pinprick of yarn: 1830 dtexs (part is 3000 dtexs)
By the ground yarn of the opposing party's ground braid with link the total rugosity of the formed pinprick of yarn: 1980 dtexs
The compression ratio of protuberance: 57.9%
The elasticity of compression rate of protuberance: 98.8%
The compression ratio of protuberance and recess poor: 57.8%
The vibration melting condition of recess: plus-pressure 18.2kgf/m
2, amplitude 1.0mm, time 1.2sec
The amplitude of protuberance: 5 wales
The amplitude of recess: 2 wales
Test example 3
Volume machine: double-needle bed raschel tricot machine (9 needle cycle number/2.54cm, needle guard spacing 15mm)
Wale density: 9.8/2.54cm
Coil is walked crosswise density: 12.8/2.54cm
Compacted depth (one distance between the surface of braid) over the ground: 12.05mm
The ground yarn of one side's ground braid: 1170 dtexs/384f
The ground yarn of the opposing party's ground braid: 560 dtexs/70f
Link yarn: 560 dtexs/1f
The tissue of one side's ground braid: 1 repeats the mesh of 2 wales
The tissue of the opposing party's ground braid: through suede pillar stitch
By the ground yarn of a side ground braid with link the total rugosity of the formed pinprick of yarn: 1730 dtexs
By the ground yarn of the opposing party's ground braid with link the total rugosity of the formed pinprick of yarn: 1120 dtexs
The compression ratio of protuberance: 89.1%
The elasticity of compression rate of protuberance: 100%
The compression ratio of protuberance and recess poor: 89.0%
The vibration melting condition of recess: plus-pressure 21.7kgf/m
2, amplitude 1.0mm, time 1.0sec
The amplitude of protuberance: 6 wales
The amplitude of recess: 2 wales
Test example 4
Volume machine: double-needle bed raschel tricot machine (9 needle cycle number/2.54cm, needle guard spacing 15mm)
Wale density: 9/2.54cm
Coil is walked crosswise density: 13.5/2.54cm
Compacted depth (one distance between the surface of braid) over the ground: 11.5mm
The ground yarn of one side's ground braid: 1170 dtexs/96f
The ground yarn of the opposing party's ground braid: 660 dtexs/192f
Link yarn: 660 dtexs/1f
The tissue of one side's ground braid: protuberance is 1 repetition, 4 wale meshes, and recess is the distortion of W traverse tricot weave
The tissue of the opposing party's ground braid: through suede pillar stitch
By the ground yarn of a side ground braid with link the total rugosity of the formed pinprick of yarn: 2050 dtexs (part is 3220 dtexs)
By the ground yarn of the opposing party's ground braid with link the total rugosity of the formed pinprick of yarn: 1540 dtexs
The compression ratio of protuberance: 20.0%
The elasticity of compression rate of protuberance: 94.3%
The compression ratio of protuberance and recess 310 poor: 6.8%
The vibration melting condition of recess: plus-pressure 18.2kgf/m
2, amplitude 1.0mm, time 1.2sec
The amplitude of protuberance: 9 wales
The amplitude of recess: 3 wales
In addition, compression ratio and elasticity of compression rate are by based on JASO specification M404-84[compression ratio and elasticity of compression rate] test method measure.Be specially, be cut on 3 test materials of 50mm * 50mm, be determined at thickness direction respectively with initial load 3.5g/cm
2(0.343kPa) thickness of pressurization in the time of 30 seconds, then, at 200g/cm
2(19.6kPa) on the basis of pressure, measure the thickness of placing after 10 minutes.Then, remove and unload, place after 10 minutes, measure once more with 3.5g/cm
2(0.343kPa) thickness of pressurization in the time of 30 seconds.Like this, can calculate compression ratio and elasticity of compression rate, represent with 3 mean value respectively by following formula.
Formula 1:
Compression ratio (%)={ (t
0-t
1)/t
0} * 100
Formula 2:
Elasticity of compression rate (%)=(t '
0-t
1)/(t
0-t
1) * 100
Here, t
0Be with 3.5g/cm
2Thickness (mm) when (0.343kPa) pressurizeing, t
1Be with 200g/cm
2Thickness (mm) when (19.6kPa) pressurizeing, t '
0Be once more with 3.5g/cm
2Thickness (mm) when (0.343kPa) pressurizeing.
Can be clear and definite from Figure 15, if observe the load characteristic in forward stroke (pressure stroke), this forward stroke is the stroke until the initial stage loading range 200N (about 20kg) in the compressive plate of diameter 200mm, then compression ratio is low, compare with the comparative example that elasticity of compression rate is high, each spring constant of testing example one side is low.In addition, if with whether form the different test example of jog this point 1 and test example 2 is compared, a side the spring constant of test example 2 that then is formed with jog is low, shows soft load characteristic.This is owing to mainly utilized because of the cross section springiness of the bending direction that produced of the spring key element of arcuation slightly, compares with the common 3 D stereo braid that the coefficient of friction that produces because of buckle characteristic and tight knot power is high, and hysteresis loss is little, linear height.
Like this, in returning stroke (recovery stroke), all be because hysteresis loss, and it is lower than the spring constant of pressure stroke, under the situation of comparative example, even the displacement in recovery stroke is in the scope of 2-1mm, spring constant also is about 40N/mm, and reaction force still exists near displacement arrival 0mm.To this, under the situation of the routine 1-4 of test, in recovery stroke, at the latest after arriving displacement 1mm, this spring constant is compared lower with the spring constant of pressure stroke in the Cushion structure of each embodiment described later is all, minimum for reaction force, is almost 0 structure.This load characteristic is the speed of dividing with 50mm/, push mensuration by the compressive plate of diameter 200mm, as the independent load characteristic of 3 D stereo braid, as described above, owing to will pursue it is had by distortion partly, improve the function of the suitable sense in little displacement region, so wish in speed with the 50mm/ branch, when pushing with the increased pressure board of diameter 30mm, can bring into play the displacement of its spring constant in above-mentioned recovery stroke below 20mm, after reaching 1mm, be roughly 0 characteristic (with reference to Figure 13) at the latest.
(embodiment 1-5)
Just relevant the 1st embodiment (embodiment 1) shown in Figure 1, the 2nd embodiment shown in Figure 2 (embodiment 2), the 3rd embodiment shown in Figure 3 (embodiment 3), the 4th embodiment shown in Figure 4 (embodiment 4), the Cushion structure of the 5th embodiment shown in Figure 5 (embodiment 5) is all, has measured its load characteristic.In addition, as the top elastomeric element in embodiment 1-3 11,21,31 and the 1st, the 6th elastomeric element 51,56 in embodiment 5 and the 3 D stereo braid that uses, it is the material that in above-mentioned test example 2, adopts, for the length direction that makes protuberance along the gap direction between the bogie side frame, and lay with 0% percentage elongation.In embodiment 4, the material that will adopt in above-mentioned test example 1 uses as top elastomeric element 41.Mensuration is the speed of dividing by with 50mm/, the circular compression plate of diameter 98mm is pressed into 100N (about 10kg) from the surface of 3 D stereo braid carries out.The result as shown in figure 16.In addition, to the muscle of people's buttocks, also be that the compressive plate of the circle by diameter 98mm carries out same compression, measure its load characteristic, be illustrated in on the figure.
In addition, each bottom elastomeric element 12,22,32 of embodiment 1-embodiment 3, any all is that each metal spring of 4 supports identical Pu Lumafuleikesi (プ Le マ Off レ Star Network ス) and laying about using respectively.Employed metal spring is wire rod footpath 2.6mm, the long 54.6mm of coil, coil average diameter 16.1mm, number of total coils 20, the helical spring of spring constant 0.55N/mm.
Can be clear and definite as Figure 16, spring constant in the forward stroke (pressure stroke) of load characteristic is all in the scope at 0.1-10N/mm, simultaneously, the hysteresis loss amount is in the scope of 10-20N, in scope, be the low spring constant that is similar to the spring performance of muscle particularly as the 35-100N in the zone more than the equalization point in the load.In addition, desirable spring constant be with the scope of the more approximate 0.1-5N of the spring constant of muscle in.In addition, more wish the characteristic when the hysteresis loss amount is measured as pressurizeing at the compressive plate with diameter 98mm as described above, in the scope of 10-20N, also can in the scope below 40N.
On the other hand, in the recurrence stroke (recovery stroke) of load characteristic, in embodiment 1, embodiment 2 and embodiment 4, if reach the non-displacement amount, about 3-5mm before replying fully, then its later spring constant is lower than the spring constant of muscle, is almost 0, in addition, in embodiment 3 and embodiment 5, if reach the non-displacement amount, the about 15-18mm before replying fully, then its later spring constant is almost 0.Promptly, in the independent load characteristic of the 3 D stereo braid of above-mentioned test example 2, in the moment that reaches about 2mm, spring constant reaches near 0, by becoming the Cushion structure of the lamination as embodiment, just know that spring constant has reached near the expanded range 0.
Because these, with respect to the 3 D stereo braid, prevent to touch other the elastomeric element at the end by stratiform configuration, according to circumstances down, set face rigidity height by stratiform, can prevent the other elastomeric element of the foreign body sensation of metal spring or Pu Lumafuleikesi (プ Le マ Off レ Star Network ス) etc., below the fixed displacement, even consider the data of the foregoing description, then displacement is below 20mm, at the latest when reaching 2mm, if for example embodiment 3, after displacement reaches below about 15mm, just can understand to have the spring performance that does not make the person of taking a seat feel reaction force.In view of the above, at displacement during from several mm to the tens mm left and right sides, when pressurization, because with the spring constant below the approximate 0.1-10N/mm of muscle, because of little load bending, on the other hand, because produce the deformation of not importing the load of reaction force substantially, so Cushion structure of each embodiment, with because human skeleton and under the situation that outstanding position contact, on little contact area, only to the person of taking a seat with slight tactility, do not make circulatory disorders or muscle burden produce such reaction force, can have the sense of taking a seat of feeling at ease to feel.
(embodiment 6)
The 3 D stereo braid (embodiment 6) that will have as Figure 10 and jog shown in Figure 11 is positioned on the flat board, changes the size (diameter) of increased pressure board, measures load characteristic.Result such as Figure 17-shown in Figure 19.Figure 17 is to use the increased pressure board of diameter 30mm, is forced into the situation of 100N, and Figure 18 is to use the increased pressure board of diameter 98mm, is forced into the situation of 100N, and Figure 19 is to use the increased pressure board of diameter 200mm, is forced into the situation of 1000N.In addition, the speed of all increased pressure boards all is the 50mm/ branch.In addition, all situations have also all been removed by vibration fusion and do not form jog, to embodiment 6 identical conditions under the 3 D stereo braid (comparative example) that does not have the jog structure made, also carried out same mensuration.
At first, can be clear and definite from Figure 17, when pressurizeing with diameter 30mm, embodiment 6 compares with comparative example, and is all low with respect to the load value of displacement, and the spring constant in recovery stroke reaches and is roughly 0 displacement increase.Therefore, partly displacement easily when outstanding position contacts, just can understand that reaction force reduces.As shown in figure 18, when pressurizeing with diameter 98mm (size that is equivalent to people's one-sided buttocks), equally, compare with comparative example, load value with respect to all displacements is low, all low in pressure stroke, recovery stroke medi-spring constant, with situation that comparative example is compared under, just can understand that reaction force is little.But, also can understand and compare with the situation of the diameter 30mm of Figure 17 pressurization, linear increasing, the part of pressurization enlarged areas, the face rigidity increases.Under situation with the increased pressure board pressurization of the diameter 200mm of Figure 19, to compare with comparative example equally, linearity increases, and the face rigidity increases.
From above-mentioned situation, by having structure as the jog of embodiment 6, in little contact area, the slight sensation that contacts of the person that only do not take a seat can not produce the reaction force that circulatory disorders or muscle burden are taken place, in big contact area, can bring into play sufficient face rigidity, the build that absorbs the person of taking a seat on one side is poor, has the sense of taking a seat of feeling at ease to feel Yi Bian give, and this point be we can say can be clear and definite from this result of the test.
Here, Cushion structure of the present invention is being applicable under the situation of seat seat, with buttocks position contacting, i.e. Chain cushion portion, if with because bone and outstanding position contacts, then as shown in figure 20, since partly crooked, the deformation of load is produced, on the other hand, as shown in figure 21, under the situation that further applies load, hope is to support structure from the load of the size of input shape (buttocks shape) with large tracts of land.This is because for buttocks, does not have physique difference on its shape or size substantially, under the situation of the load more than institute decides, can give full play to the function of springiness, in order to the raising vibration absorption.Therefore, in Chain cushion portion, as the various embodiments described above, with respect to the such little elastomeric element of reaction force of the 3 D stereo braid with jog, wish to use or configuration has other elastomeric element (Pu Lumafuleikesi (プ Le マ Off レ Star Network ス) or metal spring etc.) of springiness, or as required, the other elastomeric element that the configuration plane rigidity is high.
On the other hand, in seat back, owing to the physique difference that skeleton produces is compared with buttocks, manifest significantly, the outstanding position of bone is compared with buttocks, and difference is also big.Therefore, wish to be used to form the Cushion structure of seat back portion, it focuses on absorbing the function of physique difference.From this point, in the Cushion structure of original use polyurethane foam plastic, shown in the imaginary line of Figure 22 (b), summary central portion with seat back is the center, because it is all rearward crooked, with the slightly central portion pulling of two side direction, so also insufficient on the function this point that absorbs the physique difference.To this, when the illustrated in the respective embodiments described above 3 D stereo braid of use, and with under the situation of laying less than 5% percentage elongation, as shown in figure 23, can in little load area and displacement region, produce the deformation of fractional load, simultaneously, shown in Figure 22 (a), even further apply load, also follow skeleton, it is poor to absorb physique easily, and by the attenuation characteristic that friction produced between the silk, come to adapt to health on one side, Yi Bian become the structure of distortion.Therefore, in the Cushion structure that constitutes seat back,, wish to be for example illustrated in the above-described embodiment structure that only is equipped with 3 D stereo braid, do not dispose the structure of other elastomeric element with jog as elastomeric element.
In view of the above, shown in Figure 24 (a) and (b), in Chain cushion portion, the Cushion structure of paying attention to the spring key element can be mainly formed,, the Cushion structure of main attention decay key element can be formed simultaneously in seat back.Therefore, the present invention has following advantage, that is, by selection to the combination of Cushion structure, can be simple and easy and realize having the seat seat structure of such ideal functionality at low cost.
According to Figure 24 (a) and (b), in Chain cushion portion, by about totally 8 metal springs (helical spring) support Pu Lumafuleikesi (プ Le マ Off レ Star Network ス), in the above, employing sets the Cushion structure of the present invention (with reference to Fig. 1) of the 3 D stereo braid with jog, in seat back, make the automotive sheet that the 3 D stereo braid only will have jog adopts as Cushion structure of the present invention, measure load characteristic separately.In addition, the 3 D stereo braid is supported on the seat frame with 0% percentage elongation.
Figure 25 is illustrated in the load characteristic of the Cushion structure that Chain cushion portion adopted, wherein, dotted line is represented the load characteristic with metal spring and the two combination of Pu Lumafuleikesi (プ Le マ Off レ Star Network ス), fine line represents to pile up all load characteristics of Cushion structure of 3 D stereo braid, and heavy line is represented all spring constants of Cushion structure (k).Can be clear and definite from this figure, because metal spring and Pu Lumafuleikesi (プ Le マ Off レ Star Network ス) lamination are set, thereby know and give the linear high of 3 D stereo braid that spring performance is big.In addition, after the about 8-10mm in recovery stroke, spring constant is roughly 0, at little displacement region, produces the deformation of load.
The Cushion structure that the seat back that is illustrated in Figure 26 adopts, that is, and the load characteristic of the Cushion structure that constitutes by 3 D stereo braid only with jog.In addition, heavy line is the load characteristic of buttocks.Can be clear and definite from this result, in the Cushion structure that seat back adopts, portion compares with Chain cushion, shows hysteresis loss and increases, and the decay key element increases.In addition, clearly the load characteristic of this Cushion structure is roughly similar to the load characteristic of buttocks, has the characteristic approximate with the load characteristic of muscle.In addition, after the about 20mm of the displacement in recovery stroke, spring constant is roughly 0.
Like this, (the cushion load sharing: people 85kg) is seated at above-mentioned seat to JM96, and the platform that will add vibrating device is arranged on the bottom of Chain cushion portion, measures the acceleration transfer rate (G/G) with respect to frequency, and the result is shown in dotted line in Figure 27.In order to compare, represent with fine line using the vibration characteristics of the seat of polyester foam, there is not the vibration characteristics of the seat (still, except that not having jog, other conditions are identical with seat of the present invention) of the common 3 D stereo braid of jog to represent use with heavy line.
Acceleration transfer rate (G/G) is if surpass 2.0, and then sense has harmful effect to ride comfort, and this point under any circumstance all suppresses lower vibration transmission rate.But, if compare, then used the seat of 3 D stereo braid with the seat that uses polyester foam, all the vibration transmission rate is low slightly, demonstrates characteristic preferably.
In addition, known sense brings very big influence to ride comfort is, because vibration, self shakes bone, for below the 2Hz and the shaking of 5Hz.Therefore, formant will be avoided this scope, in addition, wishes to reduce the acceleration transfer rate of the 6-8Hz that resonates with internal organ.This point under the situation of using Cushion structure of the present invention, is that formant is set in 2Hz between the 5Hz, is set in the frequency of the material that is lower than 2 Cushion structures that use other simultaneously.Therefore, be lower than the material of 2 Cushion structures that use other significantly, under the situation of using Cushion structure of the present invention, just can understand, absorbing on the vibration performance this point, also unusual excellence with the acceleration transfer rate in the internal organ resonance range of 6-8Hz.
Cushion structure of the present invention has following structure, comprise elastomeric element, this elastomeric element be by by with link yarn will be separated from each other configuration one over the ground braid constitute in conjunction with the 3 D stereo braid that forms, the scope that will the spring constant in pressure stroke be set in 0.1-10N/mm, simultaneously in recovery stroke, spring constant is set at the spring constant that is lower than in above-mentioned pressure stroke, this spring constant be displacement below 20mm, be returned at least at the latest after the displacement 2mm.Its result is, by the action or the action etc. of standing up of taking a seat, when contacting with the cushion parts, the deformation (stroke) of the load about making from several mm to tens mm produces, in view of the above, the suitable sense (adapting to easily) that the people is felt comfortably cool can be improved, circulatory disorders or muscle burden can be alleviated effectively.Therefore, particularly Cushion structure of the present invention being applied under the situation of aircraft seat structure, is that the generation of obstacle of cause is effective for what prevent to be called as the economy class syndrome with circulatory disorders or muscle burden.
Claims (14)
1. Cushion structure, comprise elastomeric element and constitute, this elastomeric element be by by with link yarn will be separated from each other configuration one over the ground braid constitute in conjunction with the 3 D stereo braid that forms, it is characterized in that, load characteristic as this Cushion structure, the scope that will the spring constant in pressure stroke be set in 0.1-10N/mm, simultaneously in recovery stroke, with displacement below the 20mm, be returned to the later spring constant of displacement 2mm at the latest and be set at the spring constant that is lower than in above-mentioned pressure stroke.
2. Cushion structure as claimed in claim 1 is characterized in that, will be set in the scope of 0.1-5N/mm at the spring constant in the above-mentioned pressure stroke.
3. Cushion structure as claimed in claim 1 is characterized in that, the scope of hysteresis loss amount below 40N of pressure stroke in load characteristic and recovery stroke.
4. Cushion structure as claimed in claim 1, it is characterized in that, the elastomeric element that is constituted by above-mentioned 3 D stereo braid, it is configured to, as compressive plate by diameter 30mm, load characteristic when separately this 3 D stereo braid being pressurizeed, the displacement in recovery stroke be below the 20mm, be returned at the latest that the later spring constant of displacement 1mm is lower than the spring constant of the pressure stroke in above-mentioned all load characteristic, reaction force is little.
5. Cushion structure as claimed in claim 4 is characterized in that, forms the above-mentioned 3 D stereo braid of the little structure of reaction force, and thickness is in the scope of 5-30mm.
6. Cushion structure as claimed in claim 4 is characterized in that, forms the above-mentioned 3 D stereo braid of the little structure of reaction force, and jog is set on one side at least, and the elasticity of recess and protuberance is different.
7. Cushion structure as claimed in claim 6, it is characterized in that, form the above-mentioned 3 D stereo braid of the little structure of reaction force, for utilizing the structure of decay, this decay is because raised part forms the cross section and slightly is arcuation between the recess of adjacency, this cross section slightly be arcuation protuberance bending direction elasticity and be accompanied by the binding yarn that on recess, disposes slip friction and produce.
8. Cushion structure as claimed in claim 4, it is characterized in that, in the bottom of the elastomeric element that is constituted by the above-mentioned 3 D stereo braid that forms the little structure of reaction force, be equipped with other elastomeric element, these other elastomeric element can be brought into play and prevent to touch the function at the end when pressurization.
9. Cushion structure as claimed in claim 8 is characterized in that, above-mentioned other the elastomeric element that performance prevents to touch end function is reticulated elastomeric parts, planar elastomeric element or the netted or planar elastomeric element that supports by metal spring.
10. Cushion structure as claimed in claim 8 is characterized in that, with respect to the elastomeric element that is constituted by the 3 D stereo braid that forms the little structure of reaction force, above-mentioned other the elastomeric element that performance prevents to touch end function separate fixed gap set.
11. Cushion structure as claimed in claim 4, it is characterized in that, except the elastomeric element that is made of the above-mentioned 3 D stereo braid that forms the little structure of reaction force and performance prevent to touch above-mentioned other the elastomeric element of end function, also lamination has other elastomeric element, and the face rigidity of the elastomeric element that this is other is than the elastomeric element height that is made of this 3 D stereo braid that forms the little structure of reaction force.
12. Cushion structure as claimed in claim 11, it is characterized in that, top at above-mentioned other elastomeric element, lamination has the elastomeric element that is made of the above-mentioned 3 D stereo braid that forms the little structure of reaction force, performance prevents to touch above-mentioned other the elastomeric element of end function, separate fixed gap be provided in the bottom of above-mentioned other elastomeric element.
13. Cushion structure as claimed in claim 1 is characterized in that, is applicable to the mat that comprises that a usefulness is used or taken advantage of to seat for vehicle and furniture with the various seat structures or the bedding of chair.
14. Cushion structure as claimed in claim 13 is characterized in that, is applicable to the seat structure of aircraft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001145896A JP4832663B2 (en) | 2001-05-16 | 2001-05-16 | Cushion structure |
| JP145896/2001 | 2001-05-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1511005A CN1511005A (en) | 2004-07-07 |
| CN1211041C true CN1211041C (en) | 2005-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028099087A Expired - Fee Related CN1211041C (en) | 2001-05-16 | 2002-05-14 | Cushion structure |
Country Status (7)
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| US (1) | US20040142619A1 (en) |
| EP (1) | EP1388310B1 (en) |
| JP (1) | JP4832663B2 (en) |
| KR (1) | KR100607432B1 (en) |
| CN (1) | CN1211041C (en) |
| DE (1) | DE60205885T2 (en) |
| WO (1) | WO2002091884A1 (en) |
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| US8025964B2 (en) | 1994-06-03 | 2011-09-27 | Tempur World, Llc | Laminated visco-elastic support |
| CA2487022C (en) | 2002-05-24 | 2009-12-22 | Tempur World, Inc. | Comfort pillow |
| US7155765B2 (en) | 2003-10-14 | 2007-01-02 | Tempur World, Llc | Pillow top for a cushion |
| JP4637098B2 (en) | 2004-03-25 | 2011-02-23 | 株式会社デルタツーリング | Load body state determination device, vehicle seat, and computer program |
| US20060024473A1 (en) * | 2004-07-30 | 2006-02-02 | Coffield Timothy P | Load bearing fabric assembly and method of making a load bearing fabric assembly |
| JP2006109896A (en) * | 2004-10-12 | 2006-04-27 | Kurabo Ind Ltd | Bed pad |
| JP4711663B2 (en) * | 2004-11-25 | 2011-06-29 | 株式会社デルタツーリング | Seat cushion material and seat |
| JP4478182B2 (en) * | 2005-03-31 | 2010-06-09 | セーレン株式会社 | Fabric having sound absorption |
| US7469437B2 (en) | 2005-06-24 | 2008-12-30 | Tempur-Pedic Management, Inc. | Reticulated material body support and method |
| US8790565B2 (en) * | 2006-02-22 | 2014-07-29 | Futuris Automotive Interiors (Australia) Pty Ltd | Composite structure |
| TW200745398A (en) * | 2006-02-22 | 2007-12-16 | Asahi Kasei Fibers Corp | Three-dimensional fabric |
| US8656537B2 (en) | 2006-04-20 | 2014-02-25 | Dan Foam Aps | Multi-component pillow and method of manufacturing and assembling same |
| DE102007058271B4 (en) * | 2007-12-04 | 2016-04-21 | Audi Ag | vehicle seat |
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| JP2011078503A (en) * | 2009-10-05 | 2011-04-21 | Delta Tooling Co Ltd | Cushion structure and vehicle seat |
| ES2371842B1 (en) * | 2010-06-02 | 2012-12-27 | Industrias Del Descanso Kissen, S.L. | PILLOW OR ELEMENT OF SIMILAR FOAM, MIXED STRUCTURE. |
| CN104768427B (en) | 2012-07-27 | 2019-06-28 | 泰普尔-派迪克管理有限责任公司 | Body-support pad with multi-layer phase change material |
| EP2990434B1 (en) * | 2014-06-17 | 2018-04-18 | Adient Luxembourg Holding S.à r.l. | Seat cover comprising a spacer fabric, seat provided with the same and method for producing a seat cover |
| WO2016176363A1 (en) | 2015-04-27 | 2016-11-03 | Jumpsort, Inc. | Standing surface to encourage movement |
| JP6196352B2 (en) * | 2015-07-02 | 2017-09-13 | 株式会社ニューニット | Knitted fabric and its knitting method |
| DE102016125881B3 (en) * | 2016-12-29 | 2018-03-29 | Müller Textil GmbH | Spacer fabric, composite material formed with the spacer fabric, and use of the composite material |
| CN106585451B (en) * | 2017-01-18 | 2020-02-07 | 杭州博远实业有限公司 | Automobile seat cover and weaving method thereof |
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| WO2023218895A1 (en) * | 2022-05-11 | 2023-11-16 | 株式会社ルービックＪｐ | Mattress |
| WO2024136944A1 (en) * | 2022-12-23 | 2024-06-27 | Lear Corporation | Cushion |
| CN118617820A (en) | 2023-03-09 | 2024-09-10 | 霍尼韦尔安全产品美国股份有限公司 | Composite cushioning material with high air permeability and multi-stage support |
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-
2001
- 2001-05-16 JP JP2001145896A patent/JP4832663B2/en not_active Expired - Fee Related
-
2002
- 2002-05-14 WO PCT/JP2002/004653 patent/WO2002091884A1/en active IP Right Grant
- 2002-05-14 KR KR1020037014507A patent/KR100607432B1/en not_active IP Right Cessation
- 2002-05-14 US US10/477,801 patent/US20040142619A1/en not_active Abandoned
- 2002-05-14 EP EP02769594A patent/EP1388310B1/en not_active Expired - Lifetime
- 2002-05-14 DE DE60205885T patent/DE60205885T2/en not_active Expired - Lifetime
- 2002-05-14 CN CNB028099087A patent/CN1211041C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1388310B1 (en) | 2005-08-31 |
| KR100607432B1 (en) | 2006-08-02 |
| DE60205885T2 (en) | 2006-06-14 |
| DE60205885D1 (en) | 2005-10-06 |
| JP2002336076A (en) | 2002-11-26 |
| EP1388310A1 (en) | 2004-02-11 |
| CN1511005A (en) | 2004-07-07 |
| KR20030093345A (en) | 2003-12-06 |
| EP1388310A4 (en) | 2004-08-11 |
| JP4832663B2 (en) | 2011-12-07 |
| WO2002091884A1 (en) | 2002-11-21 |
| US20040142619A1 (en) | 2004-07-22 |
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