TW202011875A - Cushioning pad capable of maintaining predetermined body pressure distribution performance, enhancing seat stability and preventing slipping forward - Google Patents
Cushioning pad capable of maintaining predetermined body pressure distribution performance, enhancing seat stability and preventing slipping forward Download PDFInfo
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- TW202011875A TW202011875A TW108125079A TW108125079A TW202011875A TW 202011875 A TW202011875 A TW 202011875A TW 108125079 A TW108125079 A TW 108125079A TW 108125079 A TW108125079 A TW 108125079A TW 202011875 A TW202011875 A TW 202011875A
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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
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
- A47C27/146—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities on the outside surface of the mattress or cushion
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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
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/15—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1043—Cushions specially adapted for wheelchairs
- A61G5/1045—Cushions specially adapted for wheelchairs for the seat portion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/62—Thigh-rests
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- Aviation & Aerospace Engineering (AREA)
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- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
Description
發明領域 本發明是有關於一種吻合用於椅子、輪椅、交通工具用座椅及床墊等且具有體壓分散效果的緩衝墊材。Field of invention The invention relates to a cushion material used for chairs, wheelchairs, vehicle seats, mattresses, etc. and having a body pressure dispersion effect.
發明背景 藉由在具有特定之表面構造的胺基甲酸酯發泡體的表面,積層有較低反發的胺基甲酸酯發泡體的構造來提高體壓分散性的緩衝墊材至今一直廣為使用。Background of the invention Cushion materials that improve the body pressure dispersibility by stacking a structure of a urethane foam with a low surface reflex on the surface of a urethane foam with a specific surface structure have been widely used to date For use.
本申請人在專利文獻1及2中提案了一種緩衝墊材如下:在由胺基甲酸酯發泡體等軟質的合成樹脂發泡體構成的緩衝墊基材的表面,形成多數個以溝區劃出的區塊構件,且於該緩衝墊基材的上表面積層有低反發之胺基甲酸酯發泡體等的座椅材。The applicant proposed in
在專利文獻1中,將緩衝墊基材中的溝形成為深度配合使用者(就座者)之身體曲線而不同,並且深達對應於抵接於緩衝墊材之身體之抵接方向的凸部突出部分之處。在專利文獻2中,對緩衝墊基材之溝插入由軟質之合成樹脂構成的插入物以封埋溝,防止區塊構件之座屈,並且使緩衝墊基材之體壓集中之周邊的硬度變硬。使該插入物在插入時,是插入配設成包圍緩衝墊基材中之荷重強力施加之處的複數個區塊構件。In
在該等專利文獻1及2記載之緩衝墊材具有體壓分散性能顯著優異的的特徵,在醫療機關或看護、福利設施等,是使用於輪椅或床墊,作為防止因皮膚繃緊而產生的缺血、或因此而產生的褥瘡的緩衝墊材。The cushioning materials described in these
另一方面,將如此之緩衝墊材使用於輪椅或床墊時,就座者的坐骨位置會漸漸朝前方偏離,而發生所謂的「前滑」。發生前滑時,就座者會從緩衝墊材滑落,或者因為比較長期間的使用,而因該前滑產生之座部與就座者的臀部之間所作用的剪斷力,會在就座者發生床偏移,進而,因來自就座者的臀部與緩衝墊材抵接的位置即座部之對於就座者的臀部的壓力,而容易發生壓迫到就座者的內臓或呼吸器官而破壞身體狀況平衡的問題。On the other hand, when such a cushion material is used in a wheelchair or a mattress, the position of the ischium of the seated person gradually deviates toward the front, and so-called "forward sliding" occurs. When forward slippage occurs, the seated person may fall off the cushion material, or due to a longer period of use, the shearing force acting between the seat portion and the seated person's buttocks due to the forward slippage will be The seat occupant is deviated from the bed, and furthermore, due to the pressure from the seat buttocks and the cushion material, that is, the pressure on the buttocks buttocks of the seat occupant, it is easy for the seat occupant's internal organs or respiratory organs to be compressed. And the problem of disrupting the balance of physical condition.
為了解決如此的問題,例如,在專利文獻3中,提案了一種緩衝墊材,其是在承受體壓之就座部與使體壓分散之座壓力服貼部之間,配置設有額緣狀之孔洞的的構造,作為在臀部後方支撐至少骶骨、尾骨及坐骨結節部除外的兩大臀肌部的臀部支撐部,可使對於身體搖晃的支撐性提高,且達到體壓分散性。In order to solve such a problem, for example, in Patent Document 3, a cushion material is proposed, which is provided with a front edge between a seat portion that receives body pressure and a seat pressure applicator portion that disperses body pressure The structure of the shaped hole serves as a buttock support that supports at least two gluteus muscles except for the sacrum, coccyx, and ischial tuberosity behind the buttocks, which can improve the support for body shaking and achieve the dispersion of body pressure.
又,例如,專利文獻4中,提案了一種緩衝墊材,具備以表皮材被覆底側緩衝墊材與上側緩衝墊材的構造,承接就座者之臀部,且令底側緩衝墊材比上側緩衝墊材硬,並且相對於底側緩衝墊材,在就座時,於臀部的坐骨結節部分及其周邊部所位在的部分,並列地形成複數個長尺形狀的槽縫,且使與上側緩衝墊材同材質或比上側緩衝墊材硬的但比底側緩衝墊材柔軟的長尺形狀之嵌入緩衝墊材,嵌入固定於底面緩衝墊材的槽縫。根據該緩衝墊材,就座時間變長,就座者在臀部的坐骨結節部分的周邊部感受到壓迫造成的疼痛時,使就座位置朝前或後移動,而將感到疼痛的部分移動到嵌入緩衝墊材的上方,藉此可減輕壓迫造成的疼痛。Also, for example, Patent Document 4 proposes a cushioning material having a structure in which a bottom cushioning material and an upper cushioning material are covered with a skin material, to receive the buttocks of a seated person, and to make the bottom cushioning material higher than the upper side The cushion material is hard, and with respect to the bottom cushion material, when seated, a plurality of long-shaped slots are formed in parallel with the ischial tuberosity portion of the buttocks and the peripheral portion thereof, and the The upper cushion material is of the same material or is longer than the upper cushion material but softer than the bottom cushion material. The long-length embedded cushion material is embedded in the slot fixed to the bottom cushion material. According to the cushion material, the sitting time becomes longer, and when the seated person feels the pain caused by the compression on the peripheral part of the ischial tuberosity of the buttocks, the seated position is moved forward or backward, and the painful part is moved to Embedded above the cushion material, thereby reducing the pain caused by compression.
進而,例如,專利文獻5中,提案了一種緩衝墊材,是藉由使緩衝墊材之反發力朝前後方向連續地變化,使就座者的荷重所致的體壓分布連續地變化而使就座者的荷重所致的體壓分散性良好,其結果是,可提高就座者之就坐舒適度並且防止前滑。Further, for example,
又,例如,專利文獻6中,提案了一種緩衝墊材,緩衝墊芯材是由下述所構成:由高分子凝膠狀物構成的上層部;由配置於該上層部之下側前部的高硬度低反發性聚胺甲酸乙酯發泡體構成的前中間層部;由配置於上層部之下側後部的低硬度低反發性聚胺甲酸乙酯發泡體構成的後中間層部;及由配置於前中間層部及後中間層部之下側的通常聚胺甲酸乙酯發泡體構成的下中間層部,藉由前述緩衝墊芯材,體壓分散性優異,且可防止臀部之前滑。 先行技術文獻 專利文獻Also, for example, Patent Document 6 proposes a cushion material whose cushion core material is composed of: an upper layer portion composed of a polymer gel, and a front portion disposed below the upper layer portion The front middle layer part of the high hardness low reflex polyurethane foam; the rear middle part of the low hardness low reflex polyurethane foam arranged below the upper layer part The layer portion; and the lower intermediate layer portion composed of a normal polyurethane foam disposed below the front intermediate layer portion and the rear intermediate layer portion, with the aforementioned cushion core material, having excellent body pressure dispersibility, And can prevent the buttocks from slipping before. Advanced technical literature Patent Literature
[專利文獻1]日本特許第4221251號公報 [專利文獻2]日本特許第4221280號公報 [專利文獻3]日本特許第4686678號公報 [專利文獻4]日本特許第5695265號公報 [專利文獻5]日本特許第5657305號公報 [專利文獻6]日本特許第4104436號公報[Patent Document 1] Japanese Patent No. 4221251 [Patent Document 2] Japanese Patent No. 4221280 [Patent Document 3] Japanese Patent No. 4686678 [Patent Document 4] Japanese Patent No. 5695265 [Patent Document 5] Japanese Patent No. 5657305 [Patent Document 6] Japanese Patent No. 4104436
發明概要 發明欲解決之課題 如上述,根據習知之緩衝墊材,就就座者的體壓分散性而言,雖然可以得到某種程度的改善效果,但若是想要同時達到體壓分散與防止就座者之前滑,就會產生問題。這是因為在緩衝墊材中之就座者的體壓分散性能與前滑抑制效果之間,具有互為相反的二律背反的關係。即,使緩衝墊材之就座者的體壓分散性能提高時,則緩衝墊材的座位穩定性能會降低,其結果是,會降低了抑制就座者的前滑的效果。特別是,如專利文獻3,若是在座面部設置硬度階差而在硬度較大的部分欲做成如堰的構造(稱為定位點)藉此以抑止前滑時,當定位點的硬度大時,前滑防止效果優異,但在定位點的體壓分散效果會降低,當定位點的硬度小時,體壓分散效果優異,但前滑防止效果會降低。再者,定位點是表示不只如此之硬度階差,連高低階差等之前滑防止的階差也包含在內的構造。Summary of the invention Problems to be solved by invention As mentioned above, according to the conventional cushion material, although the body pressure dispersibility of the seated person can be improved to some extent, if you want to achieve the body pressure dispersion and prevent the seated person from slipping before, Will cause problems. This is because there is a contradictory relationship between the body pressure dispersion performance of the seated person in the cushion material and the front slip suppression effect. That is, when the body pressure dispersion performance of the seat occupant is improved, the seat stability performance of the cushion mate decreases, and as a result, the effect of suppressing forward slip of the seat occupant is reduced. In particular, as in Patent Document 3, if a step difference in hardness is provided on the seat surface portion and a portion with a larger hardness is to be made into a structure like a weir (called a positioning point) to suppress forward slip, when the hardness of the positioning point is large , The front slip prevention effect is excellent, but the body pressure dispersion effect at the positioning point is reduced, and when the hardness of the positioning point is small, the body pressure dispersion effect is excellent, but the front slip prevention effect is reduced. In addition, the anchor point is a structure that includes not only such a hardness step, but also the previous step to prevent slippage such as high and low steps.
本發明是解決習知技術之如此的問題,其目的在於提供一種可維持預定之體壓分散性能,並且可同時使座位穩定性與前滑之抑制效果的緩衝墊材。 解決課題之手段The present invention is to solve such problems of the conventional technology, and its object is to provide a cushion material which can maintain a predetermined body pressure dispersion performance and can simultaneously suppress the seat stability and the effect of suppressing forward sliding. Means to solve the problem
根據本發明,提供一種具備在第1樹脂層上積層有第2樹脂層之構造的緩衝墊材。該第1樹脂層具備有底或無底之至少1個孔洞部,第2樹脂層至少在與上述孔洞部對向的區域中具備至少1個切入圖案,前述至少1個切入圖案非別由貫通於第2樹脂層之厚度方向並且在預定的交叉部互相交叉的至少3個線狀貫通切入溝所構成。該切入圖案之鄰接的線狀貫通切入溝間的區域形成的懸臂狀之突片、及與前述突片之根部連續的突片區域周邊部構成為可彈性變形。突片及/或突片區域周邊部構成為:當垂直方向之荷重對切入圖案作用時,則朝向孔洞部彈性變形而覆蓋孔洞部的開口緣部及/或孔洞部之內壁的至少一部分。According to the present invention, there is provided a cushion material having a structure in which a second resin layer is laminated on a first resin layer. The first resin layer has at least one hole portion with or without a bottom, and the second resin layer has at least one cut-out pattern at least in a region facing the hole portion, and the at least one cut-out pattern penetrates by any means At least three linear cut-through grooves intersecting each other in the thickness direction of the second resin layer and at predetermined intersections are formed. The cantilever-shaped protruding piece formed by the adjacent line of the cutting pattern penetrating the area between the cutting grooves, and the peripheral portion of the protruding piece region continuous with the root of the protruding piece are configured to be elastically deformable. The peripheral portion of the protrusion and/or the protrusion area is configured such that when a vertical load acts on the cut pattern, it elastically deforms toward the hole to cover at least a part of the opening edge of the hole and/or the inner wall of the hole.
如此,本發明之緩衝墊材中,第1樹脂層具備有孔洞部,且於其上積層之第2樹脂層具備有分別由貫通於厚度方向且互相交叉的至少3個切入溝構成的切入圖案。當垂直方向的荷重作用於該切入圖案時,切入圖案之鄰接的切入溝間的區域即懸臂狀的突片及與該突片之根部連續的突片區域周邊部朝向孔度部彈性變形,而覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分。藉此,由於突片及突片區域周邊部朝下方彎曲而覆蓋孔洞部的開口緣部及開口緣部周邊,因此坐骨的周邊部受朝下方彎曲之突片及突片區域周邊部所支撐,進而隨著突片部的彎曲變形,鄰接的突片間(切入部之幅度)擴大而突片間之空隙的比例增加,藉此良好地分散就座者的體壓,並且坐骨的周邊部穩定受支撐,提高座位穩定性。而且,當前滑之水平方向的荷重作用時,由於維持上述的體壓分散性或座位穩定性並且覆蓋前方的開口緣部及/或孔洞部之內壁的至少一部分(定位點)之已彎曲的突片及突片區域周邊部柔軟地抵接且支撐就座者之坐骨的前緣部,因此坐骨往前方的移動緩和地受抑制,與定位點之接觸壓力急速上昇而血液流動受到局部阻止的狀況不會發生,有效地抑制前滑。如此,根據本發明的緩衝墊材,可維持預定的體壓分散性能,而且,可同時使座位穩定性與前滑的抑制效果提高。In this manner, in the cushioning material of the present invention, the first resin layer has a hole portion, and the second resin layer deposited thereon is provided with a cutting pattern composed of at least three cutting grooves penetrating each other and intersecting each other in the thickness direction . When the vertical load acts on the cut-in pattern, the area between the cut-out grooves adjacent to the cut-out pattern, that is, the cantilever-shaped projection and the peripheral portion of the projection area continuous with the root of the projection are elastically deformed toward the aperture, and It covers at least a part of the opening edge of the hole of the first resin layer and/or the inner wall of the hole. As a result, the peripheral portions of the tabs and the tab area are bent downward to cover the opening edge and the periphery of the opening portion of the hole, so the peripheral portion of the ischium is supported by the tabs and the peripheral portion of the tab area that are bent downward. Furthermore, as the tabs are bent and deformed, the space between the adjacent tabs (the width of the cut-out portion) expands, and the ratio of the gaps between the tabs increases, thereby dispersing the body pressure of the seated person well and stabilizing the peripheral part of the ischia Supported to improve seat stability. Furthermore, when the horizontal load of the front slip is applied, at least a part of the inner wall (positioning point) of the front edge of the opening edge and/or the hole that has been bent is maintained due to maintaining the above-mentioned body pressure dispersion or seat stability The peripheral part of the tab and the tab area softly abuts and supports the front edge of the ischium of the seated person, so the movement of the ischium to the front is gently suppressed, the contact pressure with the anchor point rises rapidly, and the blood flow is partially blocked The situation will not happen, effectively suppress the front slip. In this way, according to the cushioning material of the present invention, a predetermined body pressure dispersion performance can be maintained, and at the same time, the seat stability and the effect of suppressing front slip can be simultaneously improved.
線狀貫通切入溝宜以貫通槽縫構成。藉由以貫通槽縫構成,當荷重作用時,突片及突片區域周邊部會變得容易朝下方彎曲而覆蓋孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,因此可更有效率地顯現上述的作用效果。The linear penetrating cut-in groove should be composed of penetrating slots. By forming through-slots, when the load acts, the protrusions and the periphery of the protrusion area will easily bend downward to cover at least a part of the opening edge of the hole and/or the inner wall of the hole, so More effectively show the above effects.
2個前述切入圖案也宜配置於與孔洞部對向之區域內之互異的位置。藉此,可提高對使用者之臀部形狀的服貼性,故可使緩衝墊材的體壓分散性及座位穩定性更良好地提高。The two aforementioned cut-in patterns are also preferably arranged at mutually different positions in the area facing the hole portion. As a result, the conformability to the shape of the user's buttocks can be improved, so that the body pressure dispersibility of the cushion material and the stability of the seat can be more improved.
此種情況下,2個切入圖案之線狀貫通切入溝之交叉部間的距離宜為110~140mm。藉此,可使根據統計資料庫等的人體的坐骨位置確實地反映在設置於第2樹脂層之預定的線狀貫通切入溝之交叉部的位置,因此可使就座者之前滑的抑制效果更確實地提高。In this case, the distance between the intersections of the two cut patterns linearly penetrating the cut grooves is preferably 110 to 140 mm. By this, the position of the ischium of the human body according to the statistical database or the like can be reliably reflected at the position of the predetermined linear penetration through the intersection of the cut groove provided in the second resin layer, so that the effect of suppressing the front slip of the seated person can be obtained Improve more surely.
第2樹脂層亦宜具備有:貫通第2樹脂層的複數個直線狀貫通切入溝或不貫通第2樹脂層的直線狀非貫通切入溝,前述貫通第2樹脂層的複數個直線狀貫通切入溝或不貫通第2樹脂層的直線狀非貫通切入溝與連結2個切入圖案之線狀貫通切入溝之交叉部間的直線平行,並且形成於與交叉部相隔預定距離的位置。藉此,由於突片及突片區域周邊部變得容易彎曲變形,並且表觀硬度也變低,故容易覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,當荷重作用於開口緣部及/或內壁時也可以體壓低的狀態予以支撐,因此可同時更為提高前滑抑制效果與體壓分散性。進而,可配合各人之人體的坐骨位置資料,使形成於第2樹脂層之切入圖案之線狀貫通切入溝之交叉部的位置與就座者之坐骨的位置,更適切且精密地對向,故可製作與各人之體型相應的緩衝墊材,可對應於各人之體型而使就座者之體壓分散性能的提高及就座者之前滑的抑制效果更為提高。再者,若第2樹脂層具有貫通其之複數個直線狀貫通切入溝,則切入圖案具備有如一部分之懸臂狀的突片不脫落之任何構成。The second resin layer is also preferably provided with: a plurality of linear through-cut grooves penetrating the second resin layer or a linear non-penetrating cut-through groove that does not penetrate the second resin layer, and the plurality of linear penetrating cuts through the second resin layer The groove or the linear non-penetrating cut groove that does not penetrate the second resin layer is parallel to the straight line between the intersections of the linear penetrating grooves connecting the two cut patterns, and is formed at a predetermined distance from the intersection. Thereby, since the protrusion and the peripheral portion of the protrusion area are easily bent and deformed, and the apparent hardness is also reduced, it is easy to cover at least the opening edge of the hole of the first resin layer and/or at least the inner wall of the hole In part, when the load acts on the opening edge and/or the inner wall, it can be supported with a low body pressure, so that the front slip suppression effect and the body pressure dispersion can be further improved at the same time. Furthermore, the position of the ischial position of each person's human body can be matched so that the position of the intersection of the line of the cut pattern formed in the second resin layer through the cut groove and the position of the ischium of the seated person can be more appropriately and precisely opposed Therefore, a cushion material corresponding to each person's body shape can be produced, and the body pressure dispersion performance of the seated person and the suppression effect of the previous slip of the seated person can be further improved according to the body shape of each person. Furthermore, if the second resin layer has a plurality of straight through cut-through grooves penetrating through it, the cut-out pattern has any configuration such that a part of the cantilever-shaped protrusion does not fall off.
3個切入圖案亦宜配置於與孔洞部對向之區域內之互異的位置。藉此,增加設置於第2樹脂層之切入圖案的數目,會使該等切入圖案之交叉部的位置與就座者之坐骨的位置更確實地吻合,因此可精密地對應於各人的體型,而使就座者之體壓分散性能的提高及就座者之前滑的抑制效果更加提高。The three cut patterns should also be arranged at mutually different positions in the area facing the hole. By increasing the number of cut patterns provided in the second resin layer, the position of the intersection of these cut patterns and the position of the ischium of the occupant can be more accurately matched, so it can accurately correspond to the body shape of each person , And the improvement of the body pressure dispersion performance of the seated person and the suppression effect of the seated person's previous slip.
切入圖案宜為:若孔洞部為1個時,則為設置於與孔洞部之中心部對向之位置的1個切入圖案、設置於將孔洞部分割為2之2個區域之各自與就座者之坐骨對向的位置的2個切入圖案、或設置於與將孔洞部分割3之3個區域對向的位置的3個切入圖案,其中,2個切入圖案示設置於與就座者之坐骨對向的位置。又,若前述孔洞部為2個時,切入圖案宜為設置於與2個孔洞部之各自與就座者之坐骨對向的位置的2個切入圖案。進而,若孔洞部為3個時,切入圖案亦宜為設置於與3個孔洞部之各自對向的位置的3個切入圖案,其中2個切入圖案是設置於與就座者的坐骨對向的位置。藉此,可增加切入圖案之形態的變化,可因應於就座者之坐骨之位置的個人差,使切入圖案之線狀貫通切入溝之交叉部的位置更確實且精密地吻合,使就座者之體壓分散性能的提高及就座者之前滑的抑制效果更為提高。The cut-in pattern should be: if there is one hole part, it should be one cut-out pattern provided at the position opposite to the center part of the hole part, and each of the two regions divided into two parts of the hole part and seating 2 cut patterns at the position opposite to the ischial bone, or 3 cut patterns provided at the position opposite to the 3 areas dividing the hole portion 3, of which 2 cut patterns are shown at the position opposite to the seated person The position of the ischium. In addition, if there are two hole portions, the cut patterns are preferably two cut patterns provided at positions facing each of the two hole portions and the ischium of the seated person. Furthermore, if there are three hole parts, the cut patterns are also preferably three cut patterns provided at positions facing each of the three hole parts, of which two cut patterns are provided to face the ischium of the seated person s position. Thereby, the change of the shape of the cut pattern can be increased, and the position of the intersection of the line of the cut pattern through the cut of the cut groove can be more accurately and precisely matched according to the individual difference of the position of the ischium of the seated person, so that seating The improvement of the body pressure dispersion performance of the person and the suppression effect of the seated person's previous slip are more improved.
線狀貫通切入溝的長度亦宜為20mm以上。藉此,當垂直方向之荷重對切入圖案作用時,突片及突片區域周邊部朝向孔洞部彈性變形,而隨著該變形,鄰接的突片間(切入部之幅度)擴大而突片間之空隙的比例增加,藉此會良好地分散就座者的體壓,並且坐骨的周邊部穩定受支撐,容易提高座位穩定性。進而當前滑所致之荷重(應力)作用於孔洞部的開口緣部及/或孔洞部的內壁方向時,由於用以覆蓋前方的開口緣部及/或內壁之已彎曲的突片及突片區域周邊部柔軟地抵接且支撐就座者之坐骨的前緣部,因此坐骨往前方的移動緩和地受抑制,與定位點之接觸壓力急速上昇而血液流動受到局部阻止的狀況不會發生,容易有效地抑制前滑作用。The length of the linear penetration cut groove should also be more than 20mm. With this, when the vertical load acts on the cut-in pattern, the protrusions and the peripheral portion of the protrusion area elastically deform toward the hole portion, and with this deformation, the adjacent protrusions (the width of the cut-out portion) expand and the protrusions The proportion of the air gap is increased, thereby dispersing the body pressure of the occupant well, and the peripheral portion of the ischium is stably supported, and it is easy to improve the stability of the seat. Furthermore, when the load (stress) caused by the fore slip is applied to the opening edge of the hole and/or the inner wall of the hole, the bent tab and the inner wall of the hole are curved The peripheral part of the tab area softly abuts and supports the front edge of the ischium of the seated person, so the movement of the ischium to the front is gently suppressed, the contact pressure with the positioning point rises rapidly, and the blood flow is partially prevented. It will happen, it is easy to effectively inhibit the front slip effect.
切入圖案亦宜具備有以線狀貫通切入溝之交叉部為中心且不貫通第2樹脂層的複數個同心圓形狀非貫通切入溝。藉此,當垂直方向之荷重對切入圖案作用時,突片容易朝向孔洞部彈性變形,而覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,因此可使前滑抑制效果的信賴性提高,又,可使切入圖案的體壓分散性更加地提高。The cutting pattern is also preferably provided with a plurality of concentric circular non-penetrating cut grooves centered on the intersection of the linear cut grooves as the center and not penetrating the second resin layer. Thereby, when the vertical load acts on the cut-in pattern, the protruding piece is easily elastically deformed toward the hole portion and covers at least a part of the opening edge portion of the hole portion of the first resin layer and/or the inner wall of the hole portion, and therefore The reliability of the front slip suppression effect is improved, and the body pressure dispersion of the cut pattern can be further improved.
切入圖案具備有以線狀貫通切入溝之交叉部為中心且不貫通第2樹脂的複數個同心多角形狀非貫通切入溝。藉此,當垂直方向之荷重對切入圖案作用時,由於容易朝向孔洞部彈性變形而覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,因此可使前滑抑制效果的信賴性提高,又,可使切入圖案的體壓分散性更加地提高。The cut pattern is provided with a plurality of concentric polygonal non-penetrating cut grooves centered on the intersection of the linear cut grooves and not penetrating the second resin. Thereby, when the vertical load acts on the cut-in pattern, it is easy to elastically deform toward the hole portion to cover at least a part of the opening edge portion of the hole portion of the first resin layer and/or the inner wall of the hole portion. The reliability of the slip suppression effect is improved, and the body pressure dispersion of the cut pattern can be further improved.
在切入圖案之鄰接的線狀貫通切入溝間的區域,亦宜具備有貫通於第2樹脂層之厚度方向的貫通孔、或與第1樹脂層對向之側呈開口且不貫通第2樹脂層的非貫通孔。藉此,閥的表觀硬度變小,容易朝向孔洞部彈性變形而覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,可增加體壓分散性之大小的變化,故可以在定位點之體壓低的狀態使前滑抑制效果更為提高,又,可擴大對緩衝墊材之體壓分散性能需求的範圍。It is also preferable to have a through hole penetrating through the thickness direction of the second resin layer in the area where the adjacent linear cut-through pattern penetrates between the cutting grooves, or an opening that is opposite to the first resin layer and does not penetrate the second resin Non-through hole of the layer. Thereby, the apparent hardness of the valve becomes smaller, and it is easy to elastically deform toward the hole portion to cover the opening edge portion of the hole portion of the first resin layer and/or at least a part of the inner wall of the hole portion, which can increase the size of the body pressure dispersion Changes, it can improve the front slip suppression effect in the state of low body pressure at the positioning point, and can expand the range of requirements for the body pressure dispersion performance of the cushion material.
根據本發明,進而,提供一種具備在第1樹脂層上積層有第2樹脂層之構造的緩衝墊材。該第1樹脂層具備有底或無底之至少1個孔洞部,第2樹脂層在至少與孔洞部對向的區域中具備至少1個非貫通切入圖案,前述至少1個非貫通切入圖案是與第1樹脂層對向之側呈開口,且分別由不貫通第2樹脂層而在預定的交叉部互相交叉的至少3個線狀非貫通切入溝構成。非貫通切入圖案之鄰接的線狀非貫通切入溝間的溝間區域、及與溝間區域連續之溝間區域周邊部構成為可彈性變形。溝間區域及/或溝間區域周邊部構成為:當垂直方向之荷重對非貫通切入圖案作用時,朝向孔洞部彈性變形而覆蓋孔洞部的開口緣部及/或孔洞部之內壁的至少一部分。According to the present invention, there is further provided a cushion material having a structure in which a second resin layer is laminated on the first resin layer. The first resin layer includes at least one hole portion with or without a bottom, and the second resin layer includes at least one non-penetrating cut pattern in an area facing at least the hole portion, and the at least one non-penetrating cut pattern is The side facing the first resin layer has an opening, and is formed of at least three linear non-penetrating cut-out grooves that intersect each other at a predetermined intersection without penetrating the second resin layer. The inter-groove area between the adjacent linear non-penetrating cut grooves of the non-penetrating cut pattern and the peripheral portion of the inter-groove area continuous with the inter-groove area are configured to be elastically deformable. The inter-groove area and/or the peripheral area of the inter-groove area are configured such that when a vertical load acts on the non-penetrating cut pattern, it elastically deforms toward the hole portion to cover at least the opening edge of the hole portion and/or the inner wall of the hole portion Part.
本發明之緩衝墊材中,第1樹脂層具備有孔洞部,於其上積層之第2樹脂層具備有分別由不貫通於厚度方向且互相交叉之至少3個切入溝構成的非貫通切入圖案。當垂直方向之荷重對該非貫通切入圖案作用時,非貫通切入圖案之鄰接的溝間區域及溝間區域周邊部朝向孔洞部彈性變形而覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分。藉此,由於溝間區域及溝間區域周邊部朝下方彎曲而覆蓋孔洞部的開口緣部及開口緣部周邊,因此坐骨之周邊部受朝下方彎曲之溝間區域及溝間區域周邊部所支撐,進而,隨著溝間區域的彎曲變形,鄰接的溝間區域的幅度擴大而空隙的比例增加,藉此良好地分散就座者的體壓,並且坐骨的周邊部穩定受支撐,提高座位穩定性。而且,當前滑之水平方向的荷重作用時,維持上述之體壓分散性或座位穩定性,並且覆蓋前方的開口緣部及/或孔洞部之內壁的至少一部分(定位點)之已彎曲的溝間區域及溝間區域周邊部,柔軟地抵接且支撐就座者之坐骨的前緣部,因此坐骨往前方的移動緩和地受抑制,與定位點之接觸壓力急速上昇而血液流動受到局部阻止的狀況不會發生,有效地抑制前滑。如此,根據本發明之緩衝墊材,可維持預定的體壓分散性能,而且,可使座位穩定性與前滑之抑制效果共同提高。In the cushioning material of the present invention, the first resin layer has a hole portion, and the second resin layer deposited thereon has a non-penetrating cut pattern composed of at least three cut grooves that do not penetrate in the thickness direction and intersect each other . When the vertical load acts on the non-penetrating cut pattern, the adjacent inter-groove area and the peripheral area of the non-penetrating cut pattern are elastically deformed toward the hole portion to cover the opening edge portion of the hole portion of the first resin layer and/or At least a part of the inner wall of the hole. Thereby, since the inter-groove area and the peripheral portion of the inter-groove area are curved downward to cover the opening edge and the periphery of the opening edge of the hole portion, the peripheral portion of the ischium is affected by the inter-groove area and the peripheral portion of the inter-groove area curved downward Support, and furthermore, with the bending deformation of the inter-groove area, the width of the adjacent inter-groove area expands and the proportion of voids increases, thereby dispersing the body pressure of the seated person well, and the peripheral part of the ischium is stably supported, improving the seat stability. In addition, when the horizontal load of the front slide acts, the above-mentioned body pressure dispersion or seat stability is maintained, and at least a part (locating point) of the inner wall of the opening edge portion and/or hole portion of the front is bent. The inter-groove area and the peripheral part of the inter-groove area softly abut and support the front edge of the ischium of the seated person, so the movement of the ischium to the front is gently suppressed, the contact pressure with the anchor point rises rapidly, and the blood flow is The situation of partial prevention does not occur, effectively inhibiting forward slip. In this way, according to the cushion material of the present invention, the predetermined body pressure dispersion performance can be maintained, and the seat stability and the effect of suppressing front slip can be improved together.
第1樹脂層之孔洞部宜以貫通第1樹脂層之無底的孔洞構成。藉此,可使座位穩定性更加地提高。The hole portion of the first resin layer is preferably constituted by a bottomless hole penetrating the first resin layer. With this, the stability of the seat can be further improved.
更具備第3樹脂層,前述第3樹脂層是積層於第2樹脂層之與第1樹脂層相反側之面上,該第3樹脂層在與第2樹脂層對向之面的相反側之面具有多數個區塊構件,前述多數個區塊構件具有開口部且以非貫通溝區劃出,非貫通溝亦宜形成深達作用於前述第3樹脂層之垂直方向的荷重更大的部分。藉此,可使體壓分散性更加地提高。A third resin layer is further provided. The third resin layer is laminated on the surface of the second resin layer opposite to the first resin layer, and the third resin layer is on the opposite side of the surface facing the second resin layer The surface has a plurality of block members. The plurality of block members have openings and are divided by non-penetrating grooves. The non-penetrating grooves should preferably form a portion with a larger load acting in the vertical direction of the third resin layer. With this, the body pressure dispersibility can be further improved.
亦宜更具備有於第1樹脂層之與第2樹脂層相反側之面上積層且由樹脂構成之基底層。藉此,提高緩衝墊材之機械強度,可減少厚度方向之觸底風險。It is also preferable to further include a base layer made of resin that is laminated on the surface of the first resin layer opposite to the second resin layer. In this way, the mechanical strength of the cushion material is improved, and the risk of bottoming in the thickness direction can be reduced.
此種情況下,第1樹脂層、第2樹脂層及基底層之至少一者亦宜於該緩衝墊材之前後方向的兩側端部具備有由比構成各層之樹脂硬質的樹脂發泡體所構成的硬質部。藉此,更為提高緩衝墊材之兩側端部的機械強度,使使用者之座位姿勢的左右方向的穩定性提高,藉此可維持更穩定的座位姿勢。In this case, at least one of the first resin layer, the second resin layer, and the base layer is also preferably provided with a resin foam harder than the resin constituting each layer at the front and rear end portions of the cushion material The hard part of the composition. Thereby, the mechanical strength of both end portions of the cushion material is further improved, and the stability of the user's seat posture in the left-right direction is improved, thereby maintaining a more stable seat posture.
亦宜使接著層至少介於第1樹脂層與第2樹脂層之間。藉此,由於第1樹脂層與第2樹脂層之間固定,因此可確實地抑制兩層間的偏移。亦可使接著層介於第2樹脂層與第3樹脂層之間,及/或基底層與第1樹脂層之間。Preferably, the adhesive layer is at least interposed between the first resin layer and the second resin layer. Thereby, since the first resin layer and the second resin layer are fixed, the deviation between the two layers can be reliably suppressed. The adhesive layer may be interposed between the second resin layer and the third resin layer, and/or between the base layer and the first resin layer.
第1樹脂層、第2樹脂層及基底層之至少一者亦宜由樹脂發泡體或立體網狀構造體構成。藉此,可使對緩衝墊材之體壓分散性能之需求的變化擴大。第3樹脂層亦可由樹脂發泡體或立體網狀構造體構成。At least one of the first resin layer, the second resin layer, and the base layer is also preferably composed of a resin foam or a three-dimensional mesh structure. With this, the change in the demand for the body pressure dispersion performance of the cushion material can be expanded. The third resin layer may be composed of a resin foam or a three-dimensional mesh structure.
緩衝墊材宜為輪椅用之座面的緩衝墊材、床墊的緩衝墊材或交通工具用座椅之座面的緩衝墊材。若將緩衝墊材適用於床墊,可維持橫臥於床墊時或就座時之預定的體壓分散性而達到座位穩定性及前滑抑制的提高,藉此可抑制橫臥於床墊時或就座時之預定的橫臥態勢或座位姿勢不良,特別可抑制具有抬背功能之床墊在抬背時的前滑。 發明效果The cushion material is preferably a cushion material for a seat surface of a wheelchair, a cushion material of a mattress, or a cushion material of a seat surface of a vehicle seat. If the cushion material is applied to a mattress, the predetermined body pressure dispersion when lying on the mattress or when sitting can be maintained to improve the stability of the seat and the suppression of front slip, thereby suppressing lying on the mattress The predetermined horizontal posture or poor posture at the time of sitting or sitting, in particular, can suppress the forward slip of the mattress with the back lifting function when lifting the back. Invention effect
根據本發明,由於突片及突片區域周邊部朝下方彎曲而覆蓋孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,因此坐骨之周邊部藉由朝下方彎曲的突片及突片區域周邊部而受支撐,進而隨著突片部的彎曲變形,鄰接的突片間(切入部之幅度)擴大而突片間之空隙的比例增加,藉此良好地分散就座者的體壓,並且坐骨的周邊部穩定受支撐,提高座位穩定性。而且,當前滑之水平方向的荷重作用時,由於維持上述之體壓分散性或座位穩定性,並且用以覆蓋前方之開口緣部及/或孔洞部之內壁之至少一部分(定位點)之已彎曲的突片及突片區域周邊部,柔軟地抵接且支撐就座者之坐骨的前緣部,因此坐骨往前方的移動緩和地受抑制,與定位點之接觸壓力急速上昇而血液流動受到局部阻止的狀況不會發生,有效地抑制前滑。如此,根據本發明之緩衝墊材,可維持預定的體壓分散性能,而且,可使座位穩定性與前滑之抑制效果共同提高。According to the present invention, since the protrusion and the peripheral portion of the protrusion area are bent downward to cover at least a part of the opening edge of the hole portion and/or the inner wall of the hole portion, the peripheral portion of the ischium is The peripheral area of the tab area is supported, and as the tab section bends and deforms, the distance between adjacent tabs (the width of the cut-in portion) expands and the ratio of the gaps between the tabs increases, thereby dispersing the seating area well Body pressure, and the peripheral part of the ischium is stably supported, improving the stability of the seat. Moreover, when the horizontal load of the front slide is applied, the above-mentioned body pressure dispersion or seat stability is maintained, and it is used to cover at least a part (locating point) of the inner wall of the opening edge and/or hole portion in front The bent tab and the peripheral area of the tab area softly abut and support the front edge of the ischium of the seated person, so the movement of the ischium to the front is gently suppressed, and the contact pressure with the anchor point rises rapidly and blood The situation that the flow is partially blocked does not occur, effectively suppressing forward slip. In this way, according to the cushion material of the present invention, the predetermined body pressure dispersion performance can be maintained, and the seat stability and the effect of suppressing front slip can be improved together.
進而,根據本發明,由於溝間區域及溝間區域周邊部朝下方彎曲而覆蓋孔洞部的開口緣部及開口緣部周邊,因此坐骨的周邊部受朝向下方彎曲的溝間區域及溝間區域周邊部所支撐,進而隨著溝間區域的彎曲變形,鄰接的溝間區域的幅擴大而空隙的比例增加,藉此良好地分散就座者的體壓,並且坐骨的周邊部穩定受支撐,提高座位穩定性。而且,當前滑之水平方向的荷重作用時,維持上述之體壓分散性或座位穩定性,並且覆蓋前方的開口緣部及/或孔洞部之內壁的至少一部分(定位點)之已彎曲的溝間區域及溝間區域周邊部柔軟地抵接且支撐就座者之坐骨的前緣部,因此坐骨往前方的移動緩和地受抑制,與定位點之接觸壓力急速上昇而血液流動受到局部阻止的狀況不會發生,有效地抑制前滑。如此,根據本發明之緩衝墊材,可維持預定的體壓分散性能,而且,可使座位穩定性與前滑的抑制效果共同提高。Furthermore, according to the present invention, since the inter-groove region and the peripheral part of the inter-groove region are curved downward to cover the opening edge and the periphery of the opening part of the hole, the peripheral part of the ischium is affected by the inter-groove region and the inter-groove region curving downward Supported by the peripheral part, and with the bending deformation of the inter-groove area, the width of the adjacent inter-groove area expands and the proportion of voids increases, thereby dispersing the body pressure of the seated person well, and the peripheral part of the ischium is stably supported, Improve seat stability. In addition, when the horizontal load of the front slide acts, the above-mentioned body pressure dispersion or seat stability is maintained, and at least a part (locating point) of the inner wall of the opening edge portion and/or hole portion of the front is bent. The inter-groove area and the peripheral part of the inter-groove area softly abut and support the front edge of the ischium of the seated person, so the movement of the ischium to the front is gently suppressed, the contact pressure with the anchor point rises rapidly, and the blood flow is partially The blocking situation does not occur, effectively inhibiting forward slip. In this way, according to the cushion material of the present invention, the predetermined body pressure dispersion performance can be maintained, and the seat stability and the effect of suppressing front slip can be improved together.
較佳實施例之詳細說明 以下,就本發明之緩衝墊材,使用圖式進行說明。圖1是概略地顯示本發明之一實施形態之緩衝墊材的構成,圖2及圖3是概略地顯示本實施形態之緩衝墊材之基本構成即第1樹脂層及第2樹脂層的構成,圖4顯示圖5的A-A線截面,圖5是概略地顯示本實施形態之緩衝墊材之第2樹脂層之非變形時及變形時的構成。Detailed description of the preferred embodiment Hereinafter, the cushion material of the present invention will be described using drawings. 1 is a schematic diagram showing the structure of a cushion material according to an embodiment of the present invention, and FIGS. 2 and 3 are schematic diagrams showing the structure of a first resin layer and a second resin layer, which are the basic structures of the cushion material according to this embodiment. FIG. 4 shows a cross-section taken along line AA in FIG. 5, and FIG. 5 is a schematic diagram showing the structure of the second resin layer of the cushion material of the present embodiment when it is not deformed and when it is deformed.
如該等圖所示,本實施形態之緩衝墊材10是具備如下構成:在以例如聚胺甲酸乙酯樹脂等之樹脂發泡體構成的基底層11上因應需要而透過接著層積層第1樹脂層(坐骨部收納層)12,在第1樹脂層12上一定透過接著層而積層第2樹脂層(坐骨支撐層)13,在第2樹脂層13上因應需要而透過接著層來積層第3樹脂層(體壓分散賦與層)14。As shown in these figures, the cushioning
基底層11是例如聚胺甲酸乙酯樹脂等之樹脂發泡體成形為平板狀而構成,為了提高緩衝墊材之機械強度而防止就座者的觸底而設置。基底層11除了聚胺甲酸乙酯樹脂發泡體之外,還可使用聚乙烯樹脂發泡體,聚烯烴樹脂發泡體或聚矽氧樹脂發泡體等。又,亦可使用立體網狀構造體,樹脂製之硬綿或軟質樹脂等來取代樹脂發泡體構成基底層11。The
第1樹脂層12具備至少1個(本實施形態中為1個)有底(非貫通)或無底(貫通)的孔洞部12a,是藉由打孔等在例如聚胺甲酸乙酯樹脂等之樹脂之發泡體成形為平板狀者切出洞部12a而構成,為了形成用以穩定且支撐就座者的坐骨部並且抑止前滑的定位點而設置。孔洞部12a為無底之孔洞的情況是藉由將平板狀的樹脂發泡體打孔而形成,為有底之孔洞的情況是利用在模具內發泡成形第1樹脂層12的方法、或將設置有貫通的無底孔洞的平板狀樹脂發泡體積層固定於平板狀樹脂發泡體的方法等形成。孔洞部12a的平面形狀在本實施形態中是如圖示般構成為一部分重疊的2個圓形(正圓或橢圓)形狀。然而,該平面形狀只要是可支撐就座者的坐骨部,則不限定於該形狀,可如後述般適用各種形狀。又,孔洞部12a之內壁12c的形狀亦可形成為第1樹脂層12之在平面視角下的孔洞部形狀於厚度方向上是固定的,亦可形成為在厚度方向上,孔洞形狀呈相似的或非相似的形狀變化。第1樹脂層12除了聚胺甲酸乙酯樹脂發泡體之外,可使用聚乙烯樹脂發泡體、聚烯烴樹脂發泡體或聚矽氧樹脂發泡體等。又,亦可使用立體網狀構造體、樹脂製之硬綿或軟質樹脂等來取代樹脂發泡體而構成第1樹脂層12。The
第2樹脂層13在與第1樹脂層12之孔洞部12a對向的區域,具備至少1個(本實施形態中為2個)切入圖案13a,是以打孔等在例如聚胺甲酸乙酯樹脂等之樹脂發泡體成形為平板狀者切出該切入圖案13a而構成,為了支撐就座者之坐骨部並且進行定位點的壓力分散而設置。第2樹脂層13除了聚胺甲酸乙酯樹脂發泡體之外,可以使用聚乙烯樹脂發泡體、聚烯烴樹脂發泡體或聚矽氧樹脂發泡體等。又,亦可使用立體網狀構造體來取代樹脂發泡體構成第2樹脂層13。The
各切入圖案13a是由貫通於該第2樹脂層13的厚度方向並在預定的交叉部彼此集中交叉的至少3個(本實施形態中為8個)線狀貫通切入溝13b所構成。即,切入圖案13a的線狀貫通切入溝13b以其交叉部為起點呈放射狀伸長,並且終端存在於第1樹脂層之孔洞部12a內的區域。該等線狀貫通切入溝13b在本實施形態中是以貫通槽縫構成。如此,藉由以貫通槽縫構成,當荷重作用時,突片及突片區域周邊部容易朝下方輕易地彎曲,而覆蓋孔洞部12a的開口緣部12b及/或孔洞部12a的內壁12c,因此可有效率地顯現本發明的效果。又,可有效率地穩定製作線狀貫通切入溝13b。又,線狀貫通切入溝13b只要是可藉由彼此鄰接的線狀貫通切入溝13b形成懸臂狀之懸臂狀突片的形態即可,線形狀或線寬等不受限定,包含直線狀、波狀或圓弧狀等曲線狀者、或線寬一定或在長度方向上變化的形態等。Each
再者,本實施形態中,2個切入圖案13a是呈以不圖示的中央線為線對稱的形狀。又,已說明了各切入圖案13a具有8個線狀貫通切入溝13b,但本發明並非限定於該數目者,只要可發揮本發明的效果,可如後述構成為具有各切入圖案3~7個或9個以上之彼此集中交叉的線狀貫通切入溝。進而,亦可構成為藉由使2個切入圖案的其中一者做成以其中心旋轉的形狀,成為以不圖示之中央線非線對稱的形狀。In this embodiment, the two
本實施形態之2個切入圖案13a配置於與第1樹脂層12之孔洞部12a對向的區域內互異的位置。藉此,由於提高對使用者之臀部形狀的服貼性,因此可使緩衝墊材之體壓分散性及座位穩定性更良好地提高。此種情況下,2個切入圖案13a中的線狀貫通切入溝13b之交叉部間的距離宜為110~140mm。藉此,可使根據統計資料庫等之人體的坐骨位置,確實地反映在第2樹脂層13之線狀貫通切入溝13a之交叉部的位置,因此可更確實地提高就座者之前滑的抑制效果。The two
根據圖5(A)清楚所示,第2樹脂層13是懸臂狀之突片13c與突片區域周邊部13d可彈性變形地構成,突片13c是由各切入圖案13a互相鄰接的線狀貫通切入溝13b間的區域構成,突片區域周邊部13d是與該突片13c的根部連續(以下,將懸臂狀之突片13c略稱為閥13c,將突片區域周邊部13d略稱為閥周邊部13d)。本實施形態中,藉由8個線狀貫通切入溝13b來形成8個閥13c及閥周邊部13d。藉此,構成為:閥13c及閥周邊部13d在垂直方向的荷重對切入圖案13a作用時(使用者從垂直方向就座的狀態,以下同樣),朝孔洞部12a彈性變形,而覆蓋第1樹脂層12之孔洞部12a的開口緣部12b及/或孔洞部12a的內壁12c,進而當前滑所致之荷重(應力)作用於孔洞部12a的開口緣部12b及/或內壁12c方向時,閥13c及/或閥周邊部13d朝孔洞部12a的開口緣部12b及/或內壁12c方向被推壓變形,特別是覆蓋前方的開口緣部12b及/或內壁12c的至少一部分構成之定位點12d並且支撐荷重。As clearly shown in FIG. 5(A), the
線狀貫通切入溝13b的長度宜設定為20mm以上。藉由如此設定,當垂直方向的荷重對切入圖案13a作用時,閥13c及閥周邊部13d朝向孔洞部12a彈性變形。如圖5(B)所示,隨著該變形,鄰接的閥間(切入部之幅度)擴大而閥間的空隙的比例增加,藉此就座者的體壓被良好地分散,並且坐骨的周邊部穩定受支撐,變得容易提高座位穩定性。進而當前滑所致之荷重(應力)朝孔洞部12a的開口緣部12b及/或內壁12c方向作用時,由於覆蓋前方的開口緣部及/或孔洞部12a之內壁的至少一部分(定位點)之已經彎曲的閥及閥周邊部柔軟地抵接於就座者之坐骨的前緣部且予以支撐,因此坐骨往前方的移動緩和地受到抑制,與定位點的接觸壓力會急速上昇而局部地阻止血液流動的狀況不會發生,可容易地得到有效抑制前滑的作用。The length of the linear through-
第3樹脂層14在例如聚胺甲酸乙酯樹脂等之樹脂發泡體的上表面,形成多數個區塊構件14b而構成,前述區塊構件14b是在與第2樹脂層13對向之面的相反側的面,以具有開口部之多數個非貫通溝14a區劃而成,為了使就座者的體壓良好地分散而設置。第3樹脂層14之如此構造在例如專利文獻1及2等為公知。第3樹脂層14除了聚胺甲酸乙酯樹脂發泡體之外,可使用聚乙烯樹脂發泡體、聚烯烴樹脂發泡體或聚矽氧樹脂發泡體等。又,亦可使用立體網狀構造體、樹脂製之硬綿或軟質樹脂等來取代樹脂發泡體而構成第3樹脂層14。The
基底層11及第1樹脂層12未必一定要彼此固定。若是固定的情況,則僅於兩者之間的前表面或一部分藉由接著劑的塗布或接著膜的貼附而設置固定接著層。第1樹脂層12及第2樹脂層13是彼此固定的。僅於兩者之間的全面或一部份藉由接著劑的塗布或接著膜的貼附而設置固定接著層。第2樹脂層13及第3樹脂層14未必一定要彼此固定。若是固定的情況,則僅於兩者之間的前表面或一部分藉由接著劑的塗布或接著膜的貼附而設置固定接著層。藉由以接著層固定基底層11及第1樹脂層12間、第1樹脂層12及第2樹脂層13間、第2樹脂層13及第3樹脂層14間,可確實地抑制各層間之偏移。The
本實施形態中,切入圖案13a的線狀切入溝為貫通溝,但如後述,線狀切入溝亦可為非貫通溝(參照圖17)。若線狀切入溝為貫通溝,切入圖案13a是藉由將平板狀樹脂發泡體打孔而形成,若線狀切入溝為非貫通溝,切入圖案是以切刀切開成非貫通狀態的半切加工、或將設置有貫通溝的平板狀樹脂發泡體積層固定於平板狀樹脂發泡體上而形成。In the present embodiment, the linear cut groove of the
再者,本實施形態中,緩衝墊材10是作成具有基底層11、第1樹脂層12、第2樹脂層13及第3樹脂層14互相積層而成的4層構造,但本發明之緩衝墊材只要具備第1樹脂層(坐骨部收納層)12及第2樹脂層(坐骨支撐層)13透過接著層互相積層而成的基本構成即可。又,基底層11、第1樹脂層12、第2樹脂層13及第3樹脂層14是作成厚度固定的平板狀,但在不阻礙本發明之作用效果的範圍內,亦可作成厚度在局部不同的形態。又,本實施形態中,基底層11、第1樹脂層12、第2樹脂層13及第3樹脂層14分別以一個構件構成,但只要不損及本發明的作用效果,亦可為分割成複數個者組合而構成者。Furthermore, in the present embodiment, the
圖6顯示本實施形態之緩衝墊材的孔洞部與切入圖案之組合的變更例,圖7顯示了本實施形態之緩衝墊材的切入圖案的變更例。FIG. 6 shows a modified example of the combination of the hole portion and the cut pattern of the cushion material of the present embodiment, and FIG. 7 shows a modified example of the cut pattern of the cushion material of the present embodiment.
如圖6(A)所示,亦可在與第1樹脂層之1個孔洞部22a(該例中為略矩形形狀)對向之區域內之互異的位置,設置以不圖示之中央線為線對稱之形狀的2個切入圖案23a。此種情況下,設置在孔洞部22a分割為2的2個區域之各自與就座者的坐骨對向的位置設置2個切入圖案23a。再者,雖然沒有圖示,但亦可在與1個孔洞部分割為3的3個區域對向的位置,設置3個切入圖案(惟,其中2個切入圖案是設置在與就座者之坐骨對向的位置)。藉此,由於增加設置於第2樹脂層之切入圖案的數目,而可使該等切入圖案之交叉部的位置與就座者之坐骨的位置更確實地吻合,故可精密地對應於各人的體型而使就座者之體壓分散性能的提高及就座者之前滑的抑制效果更為提高。又,如圖6(B)所示,亦可在分別與第1樹脂層之2個孔洞部32a(該例中為略矩形形狀)對向的區域內,分別設置以不圖示之中央線呈線對稱之形狀的2個切入圖案33a。此種情況下,在與2個孔洞部32a對向之區域內之互異的位置(與就座者之坐骨對向的位置),分別設置2個切入圖案33a。進而,如圖6(C)所示,亦可在與第1樹脂層之1個孔洞部42a(該例中為略矩形形狀)的區域內,設置1個切入圖案43a。此種情況下,設置在與孔洞部42a之中心部對向的位置設置的1個切入圖案43a。進而,又如圖6(D)所示,亦可以一部分超出於與第1樹脂層之1個孔洞部52a(該例中為帶形狀)對向的區域的方式,設置1個切入圖案53a。進而,如圖6(E)所示,亦可在分別與第1樹脂層之3個孔洞部62a(該例中為略矩形形狀)對向的區域內,分別設置3個切入圖案63a。此種情況下,在與3個孔洞部62a對向的區域內之互異的位置,分別設置3個切入圖案63a。惟,其中2個切入圖案是以不圖示之中央線呈線對稱的形狀,設置在與就座者之坐骨對向的位置。藉此,可增加切入圖案之形態的變化,可因應於就座者的坐骨及尾骨的位置之個人差,使切入圖案之線狀貫通切入溝之交叉部的位置更確實且精密的吻合,可使就座者的體壓分散性能提高及就座者之前滑的抑制效果更加地提高。As shown in FIG. 6(A), it is also possible to provide a center not shown in a mutually different position in a region facing a
又,切入圖案如圖7(A)所示,亦可在貫通槽縫構成的8個線狀貫通切入溝73b集中交叉的交叉部73e,設置貫通於第2樹脂層之厚度方向的貫通孔而構成。又,如圖7(B)所示,亦可在寬幅之貫通槽縫構成之8個線狀貫通切入溝83b集中交叉的交叉部83e,設置貫通於第2樹脂層之厚度方向的貫通孔而構成。藉由設置該貫通孔,由於增加切入圖案區域之空隙的比例,故可使就座時的體壓分散性能更為提高。In addition, as shown in FIG. 7(A), the cut pattern may be provided with a through hole penetrating through the thickness direction of the second resin layer at the
圖8顯示了本實施形態之緩衝墊材之切入圖案的變更例。同圖所示之切入圖案任一者都是閥的數目為3個的情況。FIG. 8 shows a modification example of the cutting pattern of the cushion material of this embodiment. Any of the cut patterns shown in the same figure is the case where the number of valves is three.
切入圖案如圖8(A)所示,亦可為如下的2個切入圖案93a:彼此呈線對稱之形狀,且貫通槽縫構成之3個線狀貫通切入溝在交叉部集中交叉。又,如圖8(B)所示,亦可為如下的2個切入圖案103a:彼此呈線對稱之形狀,且貫通槽縫構成之3個線狀貫通切入溝在交叉部集中交叉並且在該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。進而,分別如圖8(C)及(D)所示,亦可為如下的2個切入圖案113a及123a:彼此呈線對稱之形狀,且貫通槽縫構成之3個線狀貫通切入溝在交叉部呈寬幅地擴大交叉並且在該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。又,進而如圖8(E)所示,亦可為如下的2個切入圖案133a:彼此呈線對稱之形狀,且寬幅之貫通槽縫構成之3個線狀貫通切入溝在交叉部集中交叉。進而,如圖8(F)所示,亦可為如下的2個切入圖案143a:彼此呈線對稱之形狀,貫通槽縫構成之3個線狀貫通切入溝在交叉部呈寬幅地擴大交叉並且在該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔,且在鄰接的線狀貫通切入溝間的區域,設置有貫通於第2樹脂層之厚度方向的貫通孔或與第1樹脂層對向之側呈開口且不貫通第2樹脂層的非貫通孔。藉由設置如此之切入圖案143a,閥的表觀硬度變小,變得容易朝向孔洞部彈性變形而覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,並且可增加體壓分散性之大小的變化,因此可以在定位點之體壓低的狀態,使前滑抑制效果更為提高,又,可擴大對緩衝墊材之體壓分散性能之需求的範圍。As shown in FIG. 8(A), the cutting pattern may be two cutting
又,切入圖案如圖8(G)所示,亦可為如下的2個切入圖案153a:彼此呈線對稱之形狀,且貫通槽縫構成之3個線狀貫通切入溝153b在交叉部集中交叉,並且具備有以線狀貫通切入溝153b的交叉部為中心之不貫通第2樹脂層的複數個同心多角形狀(本實施形態中為同心三角形狀)的非貫通切入溝153f。進而,如圖8(H)所示,亦可為如下的2個切入圖案163a:彼此呈線對稱之形狀,且貫通槽縫構成之3個線狀貫通切入溝163b在交叉部呈寬幅地擴大而交叉並且在該交叉部設置貫通於第2樹脂層之厚度方向的貫通孔,進而,具備以線狀貫通切入溝163b的交叉部為中心之不貫通第2樹脂層的複數個同心多角形狀(本實施形態中為同心三角形狀)的非貫通切入溝163f。進而,又如圖8(I)所示,亦可為如下的2個切入圖案173a:彼此呈線對稱之形狀,且貫通槽縫構成之3個線狀貫通切入溝173b在交叉部呈寬幅地擴大而交叉並且在該交叉部設置貫通於第2樹脂層之厚度方向的貫通孔,進而,具備有以線狀貫通切入溝173b之交叉部為中心之不貫通第2樹脂層的複數個同心圓形狀的非貫通切入溝173f。藉由設置如上述之切入圖案153a、163a或173a,當垂直方向的荷重對切入圖案作用時,閥會變得容易彎曲變形,並且表觀硬度也變低,因此容易覆蓋孔洞部12a的開口緣部12b及/或內壁12c的至少一部分,進而當前滑所致之荷重(應力)作用於孔洞部12a的開口緣部12b及/或內壁12c方向時,可以體壓低的狀態來支撐,因此可提高前滑抑制效果的信賴性,又,由於可使切入圖案之表觀硬度小,可愈發提高定位點的體壓分散性。In addition, as shown in FIG. 8(G), the cutting pattern may also be two cutting
進而,切入圖案亦可如圖8(J)所示,具備有:寬幅之貫通槽縫構成的3個線狀貫通切入溝183b在交叉部集中交叉之彼此呈線對稱之形狀的2個切入圖案183a;及與連結該等2個切入圖案183a之交叉部間的直線平行,並且在與交叉部相隔預定距離的位置形成之貫通第2樹脂層的複數個直線狀貫通切入溝或不貫通第2樹脂層的直線狀非貫通切入溝183g。藉由設置如此之切入圖案183a與直線狀貫通切入溝或直線狀非貫通切入溝183g,閥及閥周邊部變得容易彎曲變形並且表觀硬度也變低,因此容易覆蓋孔洞部12a的開口緣部12b及/或內壁12c的至少一部分,即使是荷重作用於孔洞部12a的開口緣部12b及/或內壁12c方向時也可以體壓低的狀態支撐,因此可同時更為提高前滑抑制效果與體壓分散性。進而,可配合各人之人體的坐骨位置資料,使線狀貫通切入溝或直線狀非貫通切入溝183b之交叉部的位置與就座者之坐骨的位置更適切且精密地對向,因此可製作與各人之體型相應的客製化緩衝墊材,可對應於各人之體型而使就座者的體壓分散性能提高及就座者之前滑的抑制效果更為提高。再者,若設置貫通第2樹脂層之複數個直線狀貫通切入溝183g,則宜具備有如切入圖案183a之一部分的閥不脫落的構成。又,於圖8(G)~圖8(J)形成之直線狀非貫通切入溝153f、163f、173f及183g亦可形成於第2樹脂層的表面側,亦可形成於與孔洞部12a對面之側。又,亦可為波型或圓弧狀等的曲線狀非貫通切入溝,取代該等直線狀非貫通切入溝153f、163f、173f及183g。Furthermore, as shown in FIG. 8(J), the cut pattern may include: three linear through
圖9顯示了本實施形態之緩衝墊材之切入圖案的變更例。同圖所示之切入圖案任一者都是閥的數目為4個的情況。FIG. 9 shows a modified example of the cut pattern of the cushion material of this embodiment. Any of the cut-in patterns shown in the figure is the case where the number of valves is 4.
切入圖案如圖9(A)及(B)所示,亦可為如下的2個切入圖案193a及203a:彼此呈線對稱之形狀,且寬幅之貫通槽縫構成之4個線狀貫通切入溝在交叉部集中交叉。又,如圖9(C)及(D)所示,亦可為具備有如下構成的型態:彼此呈線對稱之形狀且寬幅之貫通槽縫構成之4個線狀貫通切入溝213b及223b在交叉部集中交叉的2個切入圖案213a及223a;及與連結該等2個切入圖案213a及223a之交叉部間的直線平行並且形成於與交叉部相隔預定距離的位置且貫通第2樹脂層之複數個直線狀貫通切入溝或不貫通第2樹脂層之直線狀非貫通切入溝213g及223g。藉由設置如此之切入圖案213a及223a與直線狀貫通切入溝或直線狀非貫通切入溝213g及223g,閥及閥周邊部變得容易彎曲變形,並且表觀硬度也變低,因此容易覆蓋孔洞部12a的開口緣部12b及/或內壁12c的至少一部分,即使荷重作用於孔洞部12a的開口緣部12b及/或內壁12c方向時也可以體壓低的狀態來支撐,故可同時使前滑抑制效果與體壓分散性更為提高。進而,可配合各人之人體之坐骨位置資料而使線狀貫通切入溝或直線狀非貫通切入溝213g及223g之交叉部的位置與就座者之坐骨的位置更適切且精密地對向,因此可製作與各人之體型相應的客製化緩衝墊材,可對應於各人的體型而使就座者的體壓分散性能提高及就座者之前滑的抑制效果更為提高。再者,若設置有貫通第2樹脂層之複數個直線狀貫通切入溝213g及223g,則宜具備如切入圖案213a及223a之一部分的閥不脫落的構成。又,於圖9(C)及圖9(D)形成之直線狀非貫通切入溝213g及223g亦可形成於第2樹脂層的表面側,亦可形成於與孔洞部12a對面之側。又,亦可為波型或圓弧狀等之曲線狀非貫通切入溝,來取代該等直線狀非貫通切入溝213g及223g。The cut-in patterns are shown in Fig. 9(A) and (B), and they can also be the following two cut-in
圖10顯示本實施形態之緩衝墊材之切入圖案的變更例。同圖所示之切入圖案任一者都是閥的數目為6個的情況。FIG. 10 shows a modification example of the cutting pattern of the cushion material of this embodiment. Any of the cut patterns shown in the same figure is the case where the number of valves is 6.
切入圖案如圖10(A)所示,亦可為如下之2個切入圖案233a:彼此呈線對稱之形狀,且貫通槽縫構成之6個線狀貫通切入溝在交叉部集中交叉。又,如圖10(B)所示,亦可為如下的2個切入圖案243a:彼此呈線對稱之形狀,且貫通槽縫構成之6個線狀貫通切入溝在交叉部集中交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。進而,如圖10(C)所示,亦可為如下之2個切入圖案253a:彼此呈線對稱之形狀,且貫通槽縫構成之6個線狀貫通切入溝在交叉部寬幅地擴大而交叉並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。進而,如圖10(D)所示,亦可為2個切入圖案263a:彼此呈非線對稱之形狀,且貫通槽縫構成之6個線狀貫通切入溝在交叉部寬幅地擴大而交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。即,亦可構成為:藉由使2個切入圖案其中一者作成以其中心旋轉的形狀,成為對不圖示之中央線呈非線對稱的形狀。又進而,如圖10(E)所示,亦可為如下的2個切入圖案273a:彼此呈線對稱之形狀,且寬幅之貫通槽縫構成之6個線狀貫通切入溝在交叉部集中交叉。進而,如圖10(F)所示,亦可為如下的2個切入圖案283a:彼此呈線對稱之形狀,且貫通槽縫構成之6個線狀貫通切入溝在交叉部寬幅地擴大而交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔,在鄰接的線狀貫通切入溝間的區域設置有貫通於第2樹脂層之厚度方向的貫通孔或與第1樹脂層對向之側呈開口且不貫通第2樹脂層的非貫通孔。藉由設置如此之切入圖案283a,閥之表觀硬度變小,變得容易朝向孔洞部彈性變形而覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,並且可增加體壓分散性之大小的變化,可以在定位點之體壓低的狀態使前滑抑制效果更為提高,又,可擴大對緩衝墊材之體壓分散性能之需求的範圍。As shown in FIG. 10(A), the cutting pattern may also be two cutting
又,切入圖案如圖10(G)所示,亦可為如下之彼此呈線對稱之形狀的2個切入圖案293a:貫通槽縫構成之6個線狀貫通切入溝293b在交叉部集中交叉,並且具備有以線狀貫通切入溝293b之交叉部為中心之不貫通第2樹脂層的複數個同心多角形狀(本實施形態中為同心六角形狀)之非貫通切入溝293f。進而,如圖10(H)所示,亦可為如下之彼此呈線對稱之形狀之2個切入圖案303a:貫通槽縫構成之6個線狀貫通切入溝303b在交叉部寬幅地擴大而交叉,並且該交叉部設置貫通於第2樹脂層之厚度方向的貫通孔,進而,具備有以線狀貫通切入溝303b的交叉部為中心之不貫通第2樹脂層之複數個同心多角形狀(本實施形態中為同心六角形狀)的非貫通切入溝303f。進而,又如圖10(I)所示,亦可為如下之彼此呈線對稱之形狀之2個切入圖案313a:貫通槽縫構成之6個線狀貫通切入溝313b在交叉部寬幅地擴大而交叉,並且於該交叉部設置貫通於第2樹脂層之厚度方向的貫通孔,進而,具備有以線狀貫通切入溝313b之交叉部為中心之不貫通第2樹脂層之複數個同心圓形狀的非貫通切入溝313f。藉由設置如上述之切入圖案293a、303a或313a,當垂直方向之荷重對切入圖案作用時,閥變得容易彎曲變形,並且表觀硬度也變低,因此容易覆蓋孔洞部12a的開口緣部12b及/或內壁12c之至少一部分,進而當前滑所致之荷重(應力)作用於孔洞部12a的開口緣部12b及/或內壁12c方向時,可以體壓低的狀態予以支撐,因此可使前滑抑制效果的信賴性提高,又,由於切入圖案之表觀硬度可降低,因此可使定位點之體壓分散性更發提高。In addition, as shown in FIG. 10(G), the cutting pattern may be two cutting
進而,切入圖案亦可如圖10(J)所示,具備有如下構成之形態:寬幅之貫通槽縫構成之6個線狀貫通切入溝323b在交叉部集中交叉,彼此呈線對稱之形狀的2個切入圖案323a;及與連結該等2個切入圖案323a之交叉部間的直線平行並且形成於與交叉部相隔預定距離的位置且貫通第2樹脂層之複數個直線狀貫通切入溝或不貫通第2樹脂層之直線狀非貫通切入溝323g。藉由設置如此之切入圖案323a與直線狀貫通切入溝或直線狀非貫通切入溝323g,閥及閥周邊部變得容易彎曲變形,並且表觀硬度也變低,因此容易覆蓋孔洞部12a之開口緣部12b及/或內壁12c之至少一部分,即使是前滑所致之荷重作用於孔洞部12a的開口緣部12b及/或內壁12c方向,也可以體壓低的狀態予以支撐,因此可使前滑抑制效果與體壓分散性同時更為提高。進而,由於可配合各人之人體的坐骨位置資料,使線狀貫通切入溝或直線狀非貫通切入溝323b之交叉部的位置與就座者之坐骨的位置更適切且精密地對向,因此可製作與各人的體型相應之客製化緩衝墊材,可對應於各人的體型,使就座者的體壓分散性能提高及就座者之前滑的抑制效果更為提高。再者,若設置貫通第2樹脂層的複數個直線狀貫通切入溝323g,宜具備有如切入圖案323a之一部分之閥不脫落的構成。又,於圖10(G)~圖10(J)形成之直線狀非貫通切入溝293f、303f、313f及323g亦可形成於第2樹脂層的表面側,亦可形成於與孔洞部12a相對面之側。又,亦可作成波型或圓弧狀等之曲線狀非貫通切入溝,來取代該等直線狀非貫通切入溝293f、303f、313f及323g。Furthermore, as shown in FIG. 10(J), the cut pattern may also have a configuration in which six linear penetration cut
圖11顯示本實施形態之緩衝墊材之切入圖案的變更例。同圖所示之切入圖案任一者都是閥的數目為8個的情況。FIG. 11 shows a modified example of the cut pattern of the cushion material of this embodiment. Any of the cut-in patterns shown in the figure is the case where the number of valves is 8.
切入圖案如圖11(A)所示,亦可為如下構成的2個切入圖案333a:彼此呈線對稱之形狀,且貫通槽縫構成之8個線狀貫通切入溝在交叉部集中交叉。又,如圖11(B)所示,亦可為如下構成的2個切入圖案343a:彼此呈線對稱之形狀,且貫通槽縫構成之8個線狀貫通切入溝在交叉部集中交叉,並且在該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。進而,如圖11(C)所示,亦可為如下構成的2個切入圖案353a:彼此呈線對稱之形狀,貫通槽縫構成之8個線狀貫通切入溝在交叉部寬幅地擴大地交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。進而,如圖11(D)所示,亦可為如下構成的2個切入圖案353a:彼此為非線對稱之形狀,且貫通槽縫構成之8個線狀貫通切入溝在交叉部寬幅地擴大而交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。即,亦可構成為藉由使2個切入圖案的其中一者作成以其中心旋轉的形狀,成為對不圖示之中央線呈非線對稱的形狀。又,進而如圖11(E)所示,亦可為如下構成的2個切入圖案373a:彼此呈線對稱之形狀,且寬幅之貫通槽縫構成的8個線狀貫通切入溝在交叉部集中交叉。進而,如圖11(F)所示,亦可為如下構成的2個切入圖案383a:彼此呈線對稱之形狀,且貫通槽縫構成之8個線狀貫通切入溝在交叉部寬幅地擴大而交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔,且於鄰接的線狀貫通切入溝間的區域,設置貫通於第2樹脂層之厚度方向的貫通孔或與第1樹脂層對向之側呈開口且不貫通第2樹脂層的非貫通孔。藉由設置如此之切入圖案383a,閥的表觀硬度變小,變得容易朝向孔洞部彈性變形而覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,並且可增加體壓分散性之大小的變化,因此可以在定位點之體壓低的狀態使前滑抑制效果更為提高,又,可擴大對緩衝墊材之體壓分散性能的需求範圍。As shown in FIG. 11(A), the cutting patterns may be two cutting
又,切入圖案如圖11(G)所示,具備有如下構成之彼此呈線對稱之形狀之2個切入圖案393a:貫通槽縫構成之8個線狀貫通切入溝393b在交叉部集中交叉,並且具備有以線狀貫通切入溝393b之交叉部為中心且不貫通第2樹脂層之複數個同心多角形狀(本實施形態中為同心八角形狀)的非貫通切入溝393f。進而,如圖11(H)所示,亦可為如下構成之彼此呈線對稱之形狀之2個切入圖案403a:貫通槽縫構成之8個線狀貫通切入溝403b在交叉部寬幅地擴大而交叉,並且於該交叉部設置貫通於第2樹脂層之厚度方向的貫通孔,進而,具備有以線狀貫通切入溝403b之交叉部為中心之不貫通第2樹脂層的複數個同心多角形狀(本實施形態中為同心八角形狀)之非貫通切入溝403f。進而又如圖11(I)所示,亦可為如下構成之彼此呈線對稱之形狀之2個切入圖案413a:貫通槽縫構成之8個線狀貫通切入溝413b在交叉部寬幅地擴大而交叉,並且於該交叉部設置貫通於第2樹脂層之厚度方向的貫通孔,進而,具備有以線狀貫通切入溝413b的交叉部為中心且不貫通第2樹脂層之複數個同心圓形狀的非貫通切入溝413f。藉由設置如上述之切入圖案393a、403a或413a,當垂直方向之荷重對切入圖案作用時,閥變得容易彎曲變形,並且表觀硬度也變低,因此容易覆蓋孔洞部12a之開口緣部12b及/或內壁12c的至少一部分,進而當前滑所致之荷重(應力)作用於孔洞部12a的開口緣部12b及/或內壁12c方向時,可以體壓低的狀態予以支撐,因此可使前滑抑制效果的信賴性提高,又,由於可降低切入圖案之表觀硬度,因此可使定位點之體壓分散性更為提高。Further, as shown in FIG. 11(G), the cut patterns are provided with two
進而,切入圖案如圖11(J)所示,亦可為如下形態,具備有:寬幅之貫通槽縫構成的8個線狀貫通切入溝423b在交叉部集中交叉之彼此呈線對稱之形狀的2個切入圖案423a;及與連結該等2個切入圖案423a之交叉部間的直線平行並且形成於與交叉部相隔預定距離的位置且貫通第2樹脂層之複數個直線狀貫通切入溝或不貫通第2樹脂層的直線狀非貫通切入溝423g。藉由設置如此的切入圖案423a與直線狀貫通切入溝或直線狀非貫通切入溝423g,閥及閥周邊部變得容易彎曲變形,並且表觀硬度也變低,因此容易覆蓋孔洞部12a的開口緣部12b及/或內壁12c的至少一部分,即使在前滑所致之荷重作用於孔洞部12a的開口緣部12b及/或內壁12c方向的情況下也可以體壓低的狀態予以支撐,故可同時更為提高前滑抑制效果與體壓分散性。進而,可配合各人之人體的坐骨位置資料,使線狀貫通切入溝或直線狀非貫通切入溝423b之交叉部的位置與就座者之坐骨的位置更適切且精密地對向,因此可製作與各人之體型相應之緩衝墊材,可對應於各人之體型而使就座者之體壓分散性能提高及就座者之前滑之抑制效果更為提高。再者,若設置貫通第2樹脂層之複數個直線狀貫通切入溝423g,宜具備有如切入圖案423a之一部分的閥不脫落的構成。又,於圖11(G)~圖11(J)形成之直線狀非貫通切入溝393f、403f、413f及423g亦可形成於第2樹脂層的表面側,亦可形成於與孔洞部12a對面之側。又,亦可作成波型或圓弧狀等的曲線狀非貫通切入溝,來取代該等直線狀非貫通切入溝393f、403f、413f及423g。Furthermore, as shown in FIG. 11(J), the cutting pattern may also be in the form of 8 linear penetrating cut-out
圖12顯示了本實施形態之緩衝墊材之切入圖案的變更例。同圖所示之切入圖案任一者都是閥的數目為12個的形態。FIG. 12 shows a modification example of the cut pattern of the cushion material of this embodiment. Either of the cut-in patterns shown in the figure is in the form of 12 valves.
切入圖案如圖12(A)所示,亦可為如下構成的2個切入圖案433a:彼此呈線對稱之形狀,貫通槽縫構成之12個線狀貫通切入溝在交叉部集中交叉。又,如圖12(B)所示,亦可為如下構成的2個切入圖案443a:彼此呈線對稱之形狀,且貫通槽縫構成之12個線狀貫通切入溝在交叉部集中交叉並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。進而,如圖12(C)所示,亦可為如下構成的2個切入圖案453a:彼此呈線對稱之形狀,且貫通槽縫構成之12個線狀貫通切入溝在交叉部寬幅地擴大而交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。進而,如圖12(D)所示,亦可為如下構成的2個切入圖案463a:彼此呈非線對稱之形狀,且貫通槽縫構成之12個線狀貫通切入溝在交叉部寬幅地擴大而交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔。即,亦可構成為藉由使2個切入圖案的其中一者作成以其中心旋轉的形狀,而成為對不圖示之中央線呈非線對稱的形狀。又,進而如圖12(E)所示,亦可為如下構成的2個切入圖案473a:彼此呈線對稱之形狀,且寬幅之貫通槽縫構成的12個線狀貫通切入溝在交叉部集中交叉。進而,如圖12(F)所示,亦可為如下構成的2個切入圖案483a:彼此呈線對稱之形狀,且貫通槽縫構成之12個線狀貫通切入溝在交叉部寬幅地擴大而交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔,且在鄰接的線狀貫通切入溝間的區域,設置貫通於第2樹脂層之厚度方向的貫通孔或與第1樹脂層對向之側呈開口且不貫通第2樹脂層之非貫通孔。藉由設置如此之切入圖案483a,閥的表觀硬度變小,變得容易朝向孔洞部彈性變形而覆蓋第1樹脂層之孔洞部的開口緣部及/或孔洞部之內壁的至少一部分,並且可增加體壓分散性之大小的變化,可以在定位點之體壓低的狀態使前滑抑制效果提高,又,可擴大對緩衝墊材之體壓分散性能的需求範圍。As shown in FIG. 12(A), the cut patterns may be two cut
又,切入圖案如圖12(G)所示,亦可為如下構成的2個切入圖案493a:彼此呈線對稱之形狀,貫通槽縫構成之12個線狀貫通切入溝493b在交叉部集中交叉,並且具備有以線狀貫通切入溝493b的交叉部為中心之不貫通第2樹脂層的複數個同心圓形狀的非貫通切入溝493f。進而,如圖12(H)所示,亦可為如下構成的2個切入圖案503a:彼此呈線對稱之形狀,且貫通槽縫構成之12個線狀貫通切入溝503b在交叉部寬幅地擴大而交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔,更具備有以線狀貫通切入溝503b之交叉部為中心之不貫通第2樹脂層的複數個同心圓形狀的非貫通切入溝503f。進而,又如圖12(I)所示,亦可為如下構成的2個切入圖案513a:彼此呈線對稱之形狀,且貫通槽縫構成之12個線狀貫通切入溝513b在交叉部寬幅地擴大而交叉,並且於該交叉部設置有貫通於第2樹脂層之厚度方向的貫通孔,更具備有以線狀貫通切入溝513b的交叉部為中心之不貫通第2樹脂層之複數個同心圓形狀的非貫通切入溝513f。藉由設置如上述之切入圖案493a、503a或513a,當垂直方向的荷重對切入圖案作用時,閥變得容易彎曲變形,表觀硬度也變低,因此容易覆蓋孔洞部12a的開口緣部12b及/或內壁12c的至少一部分,進而在前滑所致之荷重(應力)作用於孔洞部12a的開口緣部12b及/或內壁12c方向時,可以體壓低的狀態予以支撐,可使前滑抑制效果的信賴性提高,又,由於切入圖案的表觀硬度降低,因此可使定位點的體壓分散性更為提高。Moreover, as shown in FIG. 12(G), the cutting patterns may be two cutting
進而,切入圖案如圖12(J)所示,亦可為如下形態,具備有:寬幅之貫通槽縫構成之12個線狀貫通切入溝523b在交叉部集中交叉之彼此呈線對稱之形狀的2個切入圖案523a;及與連結該等2個切入圖案523a之交叉部間的直線平行並且形成於與交叉部相隔預定距離的位置且貫通第2樹脂層的複數個直線狀貫通切入溝或不貫通第2樹脂層的直線狀非貫通切入溝523g。藉由設置如此之切入圖案523a與直線狀貫通切入溝或直線狀非貫通切入溝523g,閥及閥周邊部變得容易彎曲變形,並且表觀硬度也變低,因此容易覆蓋孔洞部12a的開口緣部12b及/或內壁12c的至少一部分,即使是荷重作用於孔洞部12a的開口緣部12b及/或內壁12c方向時也可以體壓低的狀態予以支撐,故可同時更為提高前滑抑制效果與體壓分散性。進而,可配合各人之人體的坐骨位置資料,使線狀貫通切入溝或直線狀非貫通切入溝523b之交叉部的位置與就座者之坐骨的位置更適切且精密地對向,可製作與各人之體型相應的緩衝墊材,可對應於各人之體型而使就座者的體壓分散性能提高及就座者之前滑的抑制效果更為提高。再者,若設置貫通第2樹脂層的複數個直線狀貫通切入溝523g,宜具備有如切入圖案523a之一部分的閥不脫落的構成。又,於圖12(G)~圖12(J)形成之直線狀非貫通切入溝493f、503f、513f及523g亦可形成於第2樹脂層的表面側,亦可形成於與孔洞部12a對面之側。又,亦可作成波型或圓弧狀等的曲線狀非貫通切入溝,來取代該等直線狀非貫通切入溝493f、503f、513f及523g。Furthermore, as shown in FIG. 12(J), the cutting pattern may also be in the form of: 12 linear penetrating cut-out
圖13顯示了本實施形態之緩衝墊材之設置於第1樹脂層之孔洞部的變更例。再者,同圖是以緩衝墊材的前方為圖的上側的方式來表示。FIG. 13 shows a modified example of the hole portion provided in the first resin layer of the cushion material of this embodiment. In the same figure, the front of the cushion material is shown as the upper side of the figure.
孔洞部如圖13(A)所示,亦可為如下構成的有底(非貫通)或無底(貫通)的1個孔洞部22a:具有橢圓形狀的平面形狀,且於於孔洞部內包含對應於就座者之坐骨的位置25及對應於尾骨的位置26。該孔洞部22a之前方的開口緣部及或內壁的至少一部分構成了定位點22d。又,如圖13(B)所示,亦可為如下構成的有底(非貫通)或無底(貫通)的1個孔洞部32a:具有中央部凹陷之橢圓形狀的平面形狀,且對應於就座者之坐骨的位置35包含在孔洞部內,對應於尾骨的位置36在孔洞部外。該孔洞部32a之前方的開口緣部及或內壁的至少一部分構成了定位點32d。
進而,如圖13(C)所示,亦可為如下構成的有底(非貫通)或無底(貫通)的2個孔洞部42a:具有真圓形狀的平面形狀,對應於就座者之坐骨的位置45分別包含於2個孔洞部內,對應於尾骨的位置46在孔洞部外。該等孔洞部42a之前方的開口緣部及或內壁的至少一部分構成了定位點42d。進而,又如圖13(D)所示,亦可為如下構成的有底(非貫通)或無底(貫通)的1個孔洞部52a:具有矩形形狀的平面形狀,且對應於就座者之坐骨的位置55包含在孔洞部內,對應於尾骨之位置56成為孔洞部外。該孔洞部52a之前方的開口緣部及或內壁的至少一部分構成了定位點52d。進而,如圖13(E)所示,亦可為如下構成的有底(非貫通)或無底(貫通)的1個孔洞部62a:具有半圓形狀的平面形狀,且對應於就座者之坐骨的位置65及對應於尾骨的位置66包含在孔洞部內。該孔洞部62a之前方的開口緣部及或內壁的至少一部分構成了定位點62d。進而,如圖13(F)所示,亦可為如下構成的有底(非貫通)或無底(貫通)的3個孔洞部72a:具有真圓或橢圓形狀的平面形狀,且對應於就座者之坐骨的位置75分別包含於2個孔洞部內,對應於尾骨的位置76包含於剩餘的孔洞部內。2個孔洞部72a之前方的開口緣部及或內壁的至少一部分構成了定位點72d。坐骨間之距離等的設計值可配合各人之人體的坐骨位置資料而使之更適切且精密地對向,因此可製作與各人之體型相應的緩衝墊材,可對應於各人之體型而使就座者的體壓分散性能提升及就座者之前滑的抑制效果更為提高。又,圖13(A)~圖13(F)之各孔洞部的內壁形狀亦可形成為第1樹脂層12之平面視角下的孔洞形狀在厚度方向為一定,亦可形成為孔洞形狀在厚度方向變化成相似的或非相似的形狀。
又,如圖13(C)及圖13(F),若形成有複數個孔洞部時,亦可使各孔洞部的內壁形狀不同。As shown in FIG. 13(A), the hole portion may be a
圖14及圖15是用以說明本實施形態之緩衝墊材之作用效果的圖。惟,圖15(B)~圖15(E)是表示圖15(A)之B-B線截面。該緩衝墊材是第2樹脂層13之切入圖案13a的線狀貫通切入溝13b以交叉部為起點而呈放射狀伸長,且終端位於第1樹脂層之孔洞部12a內的區域的情況。14 and 15 are diagrams for explaining the effect of the cushion material of this embodiment. However, Fig. 15(B) to Fig. 15(E) show the B-B cross section of Fig. 15(A). This cushion material is a case where the linear penetration cut
如圖14所示,當就座者17就座於本實施形態之緩衝墊材10之孔洞部12a的部分時,因為其垂直荷重,而第2樹脂層13之切入圖案13a中的閥13c及閥周邊部13d朝向孔洞部12a彈性變形,而覆蓋第1樹脂層12之孔洞部12a的開口緣部及/或孔洞部之內壁的至少一部分。圖15(B)~圖15(E)顯示了垂直荷重與延續於其之水平方向的荷重所致之該閥13c及閥周邊部13d之階段性的彈性變形的樣態。如此,由於閥13c及閥周邊部13d朝下方彎曲而覆蓋孔洞部12a的開口緣部12b,在該部分良好地分散就座者的體壓,並且隨著閥13c的彎曲變形,鄰接的閥13c間(切入部之幅度)會擴大而閥13c間之空隙的比例增加(不圖示),因此,進而提高體壓分散性能並且坐骨的周邊部17a穩定受支撐,提高座位穩定性。又,由於覆蓋由前方的開口緣部及或內壁的至少一部分構成之定位點12d之彎曲的閥13c及閥周邊部13d柔軟地抵接且支撐就座者之坐骨的前緣部,因此坐骨往前方的移動會緩和的受到抑制,如與定位點12d的接觸壓力急速上昇而血液流動受到局部阻止的狀況不會發生,有效地抑制前滑。又,因應於孔洞部12a與閥13c及閥周邊部13d之形狀或大小的組合條件或荷重條件,成為如圖15(D),閥13c及閥周邊部13d抵接於孔洞部12a的開口緣部12b但不抵接於內壁12c的例子,或成為如圖15(E),抵接於開口緣部12b並且部分的或全面的抵接於內壁12c的例子等的形態。若閥13c及閥周邊部13d不抵接於內壁12c整面,則如圖15(D)及圖15(E),在內壁12c與閥13c及閥周邊部13d之間形成空隙,該空隙發揮功能使體壓分散性能提高。如此,根據本實施形態的緩衝墊材10,可維持預定的體壓分散性能,而且,可使座位穩定性與前滑的抑制效果共同提高。再者,若閥周邊部13d的硬度高時,則如圖15(D)所示,彎曲之閥周邊部13d的上端部也發揮作為定位點12e的功能。As shown in FIG. 14, when the seated
圖16是用以說明本實施形態之變更態樣的作用效果的圖。惟,圖16(B)~圖16(E)顯示圖16(A)之C-C線截面。FIG. 16 is a diagram for explaining the effect of the modification of this embodiment. However, Fig. 16(B) ~ Fig. 16(E) show the C-C cross section of Fig. 16(A).
該變更態樣是第2樹脂層之切入圖案13a′中的線狀貫通切入溝13b′的長度較長,其一部分超出到第1樹脂層之孔洞部12a之外側的區域的情況。即,是切入圖案13a′的線狀貫通切入溝13b′以交叉部為起點呈放射狀伸長,且終端位於第1樹脂層之孔洞部12a外側的區域的情況。從顯示垂直荷重與延續其之水平方向的荷重所致之切入圖案13a′之閥13c′之段階性的彈性變形之樣態的圖16(B)~圖16(E)可知,在該變更態樣中,也因為閥13c′朝下方彎曲而覆蓋孔洞部12a的開口緣部,因此在該部分良好地分散就座者的體壓,並且隨著閥13c′的彎曲變形,鄰接的閥13c′間(切入部之幅度)擴大而增加閥13c′間之空隙的比例(不圖示),故進而提高體壓分散性能,可穩定支撐坐骨的周邊部,提高座位穩定性。又,由於覆蓋由前方的開口緣部及/或內壁的至少一部構成之定位點12d之彎曲的閥13c′柔軟地抵接且支撐就座者之坐骨的前緣部,因此坐骨往前方的移動緩和地受到抑制,與定位點12d之接觸壓力急速上昇而血液流動受到局部阻止的狀況不會發生,有效地抑制前滑。又,因應於孔洞部12a與閥13c′之形狀或大小的組合條件或荷重條件,成為如圖16(D),閥13c′抵接於孔洞部12a的開口緣部12b但不抵接於內壁12c的例子,或如圖16(E),抵接於開口緣部12b並且部分的或全面的抵接於內壁12c之例子等的形態。若閥13c′不抵接於內壁12c整面,則如圖16(D)及圖16(E),在內壁12c與閥13c′之間形成空隙,該空隙發揮功能使體壓分散性能提高。如此,也可藉由該變更態樣之緩衝墊材而維持預定的體壓分散性能,而且,可使座位穩定性與前滑的抑制效果共同提高。再者,若閥13c′的硬度高時,則如圖16(D)所示,彎曲之閥13c′的上端部成為定位點12e′。This modified aspect is a case where the length of the linear through
圖17是比較顯示本實施形態之緩衝墊材及其變更態樣的構成,同圖(A)顯示本實施形態之第1樹脂層12及第2樹脂層13的平面及其D-D線截面,同圖(B)顯示變更態樣之第1樹脂層12″及第2樹脂層13″的平面及其E-E線截面。FIG. 17 is a comparison showing the structure of the cushion material of the present embodiment and its modified form, and FIG. (A) shows the plane of the
本實施形態之緩衝墊材中,如圖17(A)所示,第2樹脂層13在與第1樹脂層12之孔洞部12a對向的區域,具備切入圖案13a,該切入圖案13a由貫通槽縫即複數個線狀貫通切入溝13b構成。藉由如此構成,切入圖案13a之鄰接的線狀貫通切入溝13b間的區域即閥13c及閥周邊部13d朝向孔洞部12a彎曲而彈性變形,而覆蓋第1樹脂層12之孔洞部12a的開口緣部12b及/或孔洞部12a之內壁12c的至少一部分,由於覆蓋該孔洞部12a的開口緣部及開口緣部周邊,因此坐骨的周邊部受朝下方彎曲之閥13c及閥周邊部13d所支撐,進而隨著閥13c的彎曲變形,鄰接的閥13c間(切入部之幅度)擴大而增加閥13c間之空隙的比例,藉此,良好地分散就座者的體壓,並且坐骨的周邊部穩定受支撐,提高座位穩定性。又,當前滑所致之荷重(應力)作用於孔洞部12a的開口緣部12b及/或內壁12c方向時,由於覆蓋前方的開口緣部及/或內壁的至少一部分(定位點)之彎曲的閥13c及閥周邊部13d柔軟地抵接且支撐就座者之坐骨的前緣部,因此坐骨往前方的移動緩和地受抑制,與定位點之接觸壓力急速上昇而血液流動受到局部阻止的狀況不會發生,有效地抑制前滑。In the cushioning material of the present embodiment, as shown in FIG. 17(A), the
相對於此,在變更態樣的緩衝墊材中,如圖17(B)所示,第2樹脂層13″在與第1樹脂層12″之孔洞部12a″對向的區域,具備有非貫通切入圖案13a″,該非貫通切入圖案13a″由孔洞部12a″側開口的非貫通槽縫即複數個線狀非貫通切入溝13b″構成。藉由如此構成,非貫通切入圖案13a″的溝間區域13c″及與該溝間區域13c″連續的溝間區域周邊部13d″朝向孔洞部12a″彎曲而彈性變形,而覆蓋第1樹脂層12″之孔洞部12a″的開口緣部12b″及/或孔洞部a″之內壁12c″的至少一部分,由於覆蓋該孔洞部12a″的開口緣部及/或內壁的至少一部分,坐骨的周邊部受朝下方彎曲之溝間區域及溝間區域周邊部所支撐,進而隨著溝間區域的彎曲變形,鄰接的溝間區域的幅度擴大而增加空隙的比例,藉此良好地分散就座者的體壓,並且坐骨的周邊部穩定受支撐,提高座位穩定性。又,前滑所致之荷重(應力)作用於孔洞部12a″的開口緣部12b″及/或內壁12c″方向時,覆蓋前方的開口緣部及/或內壁的至少一部分(定位點)之彎曲的溝間區域13c″及溝間區域周邊部13d″柔軟地抵接且支撐就座者之坐骨的前緣部,因此坐骨往前方的移動緩和地受抑制,與定位點之接觸壓力急速上昇而血液流動受到局部阻止的狀況不會發生,有效地抑制前滑。本發明之緩衝墊材中,可將前述之全部的變更例及變更態樣的切入圖案,以具有如此之由非貫通槽縫構成之線狀非貫通切入溝的非貫通切入圖案來構成。再者,線狀非貫通切入溝13b″在該實施形態中是作成直線狀,但只要是由彼此鄰接的線狀非貫通切入溝形成溝間區域13c″的形態即可,可作成直線狀、波狀或圓弧狀等之曲線狀者,或線寬一定或朝長度方向變化者。On the other hand, in the cushion material of the modified aspect, as shown in FIG. 17(B), the
圖18是顯示將本實施形態的緩衝墊材適用於輪椅的座面之例。FIG. 18 shows an example in which the cushion material of this embodiment is applied to a seat surface of a wheelchair.
如同圖所示,藉由在輪椅18的座面18a上,載置基本構成的緩衝墊材,前述基本構成具備有:具有孔洞部12a之第1樹脂層(坐骨部收納層)12與具有切入圖案13a之第2樹脂層(坐骨支撐層)13,將本實施形態之緩衝墊材適用於輪椅,可維持預定的體壓分散性能並且可使座位穩定性與前滑的抑制效果提高。又,可將本實施形態的緩衝墊材適用於床墊的緩衝墊材或交通工具用座椅之座面的緩衝墊材。若將該緩衝墊材適用於床墊,可維持橫臥於床墊或就座時之預定的體壓分散性,謀求座位穩定性及前滑抑制之提高,可抑制橫臥於床墊時或就座時之預定的橫臥姿勢或座位姿勢不良,特別是可抑制具有抬背功能之床墊之抬背時的前滑。即使是適用於交通工具用座椅之座面的緩衝墊材的情況,也可以維持預定的體壓分散性能,並且使座位穩定性與前滑的抑制效果提高。As shown in the figure, by placing a cushion material of a basic structure on the
圖19概略地顯示本發明之其他實施形態之緩衝墊材的構成。FIG. 19 schematically shows the structure of a cushion material according to another embodiment of the present invention.
如同圖所示,本實施形態之緩衝墊材具備有如下構成:可視需要而透過接著層在以例如聚胺甲酸乙酯樹脂等的樹脂發泡體所構成之基底層21上積層第1樹脂層(坐骨部收納層)12,必須透過接著層而在第1樹脂層12上積層第2樹脂層(坐骨支撐層)13,視需要而透過接著層在第2樹脂層13上積層第3樹脂層(體壓分散賦與層)14。As shown in the figure, the cushion material of the present embodiment has a structure in which a first resin layer is laminated on a
基底層21是例如聚胺甲酸乙酯樹脂等的樹脂發泡體成形為平板狀而構成,是為了提高緩衝墊材的機械強度以防止就座者之觸底而設置。於該基底層21之前後方向的兩側端部,具備有由比構成該層之合成樹脂發泡體硬質的合成樹脂發泡體構成的硬質部21a。藉此,更為提高緩衝墊材之兩側端部的機械強度,提高使用者之座位姿勢之左右方向的穩定性,藉此在適用於輪椅以外時也可以維持穩定的座位姿勢。再者,本實施形態之變更態樣中,亦可於第1樹脂層12及/或第2樹脂層13設置與該基底層21同樣的硬質部。The
本實施形態中,其他第1樹脂層12、第2樹脂層13及第3樹脂層14的構成及作用效果以及變更態樣與上述之實施形態的情況相同,因此省略詳細說明。In the present embodiment, the configuration, operational effects, and modified aspects of the other
[實施例] 以下,就本發明之緩衝墊材之實施例1、比較例1及比較例2的比較試驗進行說明。[Example] Hereinafter, the comparative tests of Example 1, Comparative Example 1 and Comparative Example 2 of the cushion material of the present invention will be described.
(實施例1)
製作圖1之構造之緩衝墊材:將圖2~圖5所示之第1樹脂層(坐骨部收納層)12及第2樹脂層(坐骨支撐層)13透過接著層積層而成的基本構成的積層體(緩衝墊材),於其積層體之第1樹脂層(坐骨部收納層)12之下透過接著劑積層基底層11,並且於第2樹脂層13之上不接著地積層第3樹脂層14(體壓分散層)。構成材料使用了聚胺甲酸乙酯樹脂發泡體(東洋クオリティワン社(Toyo Quality One Corporation / 東洋品質第一股份有限公司)製造 型號ラバーライク33H(rubberlike 33H),依據JIS K6400-2 A法之硬度190N)。基底層11使用了400mm×400mm×20mm之尺寸的矩形形狀者。第1樹脂層12使用了圖20所示之形狀及尺寸者。第2樹脂層13使用了圖21所示之形狀及尺寸者。第3樹脂層14使用了圖22所示之形狀及尺寸者。整體的厚度為75mm。再者,圖20~圖22中的尺寸單位為mm。(Example 1)
Fabrication of the cushioning material of the structure of FIG. 1: a basic structure in which the first resin layer (ischilas accommodating layer) 12 and the second resin layer (ischia support layer) 13 shown in FIGS. 2 to 5 are layered through adhesion The laminated body (cushion material) is laminated with the
(比較例1)
使用了本案申請人製作之習知的緩衝墊材即αPLA緩衝墊(型號KC-WP4040)。該緩衝墊材是記載於專利文獻2的緩衝墊材,且是在上表面具有以多數個非貫通溝所區劃出之多數個區塊構件的聚胺甲酸乙酯樹脂發泡體製之體壓分散賦與層(相當於圖1記載之第3樹脂層14)上積層低反發聚胺甲酸乙酯層而構成的緩衝墊材。整體的厚度為60mm。(Comparative example 1)
The well-known cushion material made by the applicant in this case, that is, aPLA cushion (model KC-WP4040) was used. This cushioning material is a cushioning material described in
(比較例2) 作成除了實施例1之緩衝墊材中的第2樹脂層不具有切入圖案,且具有不存在凹凸或孔洞的平坦表面之外,其他與實施例1之緩衝墊材的構成相同的緩衝墊材。構成材料使用了聚胺甲酸乙酯樹脂發泡體(東洋クオリティワン社製造(Toyo Quality One Corporation / 東洋品質第一股份有限公司) 型號ラバーライク33H(rubberlike 33H),依據JIS K6400-2 A法之硬度190N)。整體的厚度為75mm。(Comparative example 2) Except for the second resin layer in the cushion material of Example 1, the second resin layer does not have a cut-in pattern and has a flat surface free of irregularities or holes, and the other cushion material has the same structure as the cushion material of Example 1. Polyurethane resin foam (manufactured by Toyo Quality One Corporation / Toyo Quality One Corporation) model ラバーライク 33H (rubberlike 33H), based on JIS K6400-2 A method Hardness 190N). The overall thickness is 75mm.
(第1比較試驗) 為了驗證緩衝墊材之前滑抑制效果,就實施例、比較例1及比較例2使用圖23所示之比較試驗用測定裝置進行拉力的測定。如同圖所示,將要驗證的緩衝墊材C(10)載置於在水平方向上自由移動的台車T上,在緩衝墊材C(10)的上表面放置模擬就座姿勢之臀部到大腿內側的座面墊板P,在該座面墊板P上,透過在垂直方向上自由移動地被支撐架台F支撐的軸S載置各種重量(10、15、20、25、30kg)的錘W,施加垂直荷重,透過數位測力計G以固定速度(50mm/秒)在水平方向上托曳台車T,藉此測定數位測力計G所示之拉力的峰值。該拉力的峰值愈大,在定位點承受荷重的能力愈高,判定前滑抑制效果優異。峰值的測定是就各錘測定5次,算出其平均值。測定結果顯示於表1。拉力之峰值的單位為kgf。再者,座面墊板P是使用JIS S1203所規定之形狀的墊板縮小為70%的尺寸者。這是配合平均的日本人尺寸所故。(First comparative test) In order to verify the effect of suppressing the front slip of the cushioning material, the tensile force was measured using the measuring device for comparative test shown in FIG. 23 for the examples, comparative examples 1 and comparative examples 2. As shown in the figure, place the cushion material C(10) to be verified on the trolley T that moves freely in the horizontal direction, and place the hips simulating the sitting posture on the upper surface of the cushion material C(10) to the inside of the thigh The seat cushion plate P on which the hammers W of various weights (10, 15, 20, 25, 30 kg) are placed via an axis S supported by the support frame F so as to move freely in the vertical direction A vertical load is applied, and the trolley T is dragged in the horizontal direction through the digital dynamometer G at a fixed speed (50 mm/sec), thereby measuring the peak value of the tensile force indicated by the digital dynamometer G. The larger the peak value of the tensile force, the higher the ability to bear the load at the positioning point, and it is judged that the front slip suppression effect is excellent. The peak value is measured five times for each hammer, and the average value is calculated. The measurement results are shown in Table 1. The unit of peak tension is kgf. In addition, the seat cushion P is a size reduced to 70% using a cushion of the shape prescribed by JIS S1203. This is due to the average Japanese size.
[表1] [Table 1]
圖24顯示了表1所示之第1比較試驗的測定結果中,錘的重量(kg)與測定之拉力的平均值(kgf)的關係。由同圖可知,具備有第1樹脂層(坐骨部收納層)及第2樹脂層(坐骨支撐層)之積層體的實施例1,相較於不具有該等第1樹脂層(坐骨部收納層)及第2樹脂層(坐骨支撐層)之積層體的比較例1、及該積層體之第2樹脂層不具有切入圖案的比較例2,各種的垂直加重中,拉力大,前滑抑制效果優異。Fig. 24 shows the relationship between the weight of the hammer (kg) and the average value of the measured tensile force (kgf) in the measurement results of the first comparative test shown in Table 1. As can be seen from the same figure, in Example 1 provided with the laminate of the first resin layer (ischial portion storage layer) and the second resin layer (ischial support layer), compared with the first resin layer (ischial portion storage) Layer) and the second resin layer (ischium support layer) of the laminated body of Comparative Example 1, and the second resin layer of the laminated body of the Comparative Example 2 does not have a cut pattern, in various vertical weighting, the pulling force is large, and the front slip is suppressed The effect is excellent.
(第2比較試驗) 為了驗證一般座位的體壓分散性,就實施例1、比較例1及比較例2進行了體壓分散性能的測定。該測定是藉由在輪椅(株式会社ミキ社製造之輪椅ミューフォーMYU4-22)的座面上裝設XSENSOR Technology Corporation製造的表面壓力感測器XSENSOR PX100.36.36.02,使身高170cm、體重65kg、BMI(肥胖指數)22.5的受試者就座於其上,測定就座5分鐘後的表面壓力分布而進行。該表面壓力(體壓)分布的測定結顯示於圖25。同圖(A)為實施例1的緩衝墊材,同圖(B)為比較例1的緩衝墊材,同圖(C)為比較例2的緩衝墊材的測定結果。(Second comparison test) In order to verify the body pressure dispersibility of the general seat, the body pressure dispersion properties of Example 1, Comparative Example 1 and Comparative Example 2 were measured. The measurement is carried out by installing a surface pressure sensor XSENSOR PX100.36.36.02 made by XSENSOR Technology Corporation on the seat surface of a wheelchair (Wheelchair MYU4-22 manufactured by ミキ社, Inc.), resulting in a height of 170cm and a weight of 65kg A subject with a BMI (obesity index) of 22.5 was seated on it, and the surface pressure distribution after 5 minutes of sitting was measured. The measurement result of the surface pressure (body pressure) distribution is shown in FIG. 25. The same figure (A) is the cushion material of Example 1, the same figure (B) is the cushion material of Comparative Example 1, and the same figure (C) is the measurement result of the cushion material of Comparative Example 2.
由圖25可知,具備有第1樹脂層(坐骨部收納層)及第2樹脂層(坐骨支撐層)之積層體的實施例1,相較於不具有該等第1樹脂層(坐骨部收納層)及第2樹脂層(坐骨支撐層)之積層體的比較例1、及該積層體之第2樹脂層不具有切入圖案的比較例2,座面整體的體壓低,並且其變化小,體壓分散性顯著優異。As can be seen from FIG. 25, in Example 1 provided with the laminated body of the first resin layer (ischial portion storage layer) and the second resin layer (ischial support layer), compared to the first resin layer (ischial portion storage) Layer) and the second resin layer (ischium support layer) of the laminated body of Comparative Example 1, and the second resin layer of the laminated body of Comparative Example 2 does not have a cut-out pattern, the body pressure of the entire seat surface is low, and its change is small, The body pressure dispersion is remarkably excellent.
(第3比較試驗) 為了驗證坐骨朝前方偏移之座位姿勢(前滑狀態的座位姿勢)時之定位點(區域)的體壓分散性(體壓上昇抑制效果),就實施例1及比較例2的緩衝墊材,進行了前滑狀態之座位姿勢時之體壓分散性能的測定。該測定是藉由在輪椅(株式会社ミキ社(MIKI股份有限公司)製造之輪椅ミューフォーMYU4-22)的座面上裝設XSENSOR Technology Corporation製造的表面壓力感測器XSENSOR PX100.36.36.02,使身高170cm、體重65kg、BMI(肥胖指數)22.5的受試者就座於其上,測定就座5分鐘後的面壓分布而進行。該面壓(體壓)分布的測定結顯示於圖26。同圖(A)為實施例1的緩衝墊材,同圖(B)是比較例2之緩衝墊材的測定結果。(3rd comparative test) In order to verify the dispersion of body pressure (the effect of suppressing the increase in body pressure) at the positioning point (area) when the sitting posture is shifted forward (the sitting posture in the forward sliding state), the cushion materials of Example 1 and Comparative Example 2 are used. The body pressure dispersion performance was measured when the seat posture in the forward sliding state was performed. The measurement is carried out by installing a surface pressure sensor XSENSOR PX100.36.36.02 made by XSENSOR Technology Corporation on the seat surface of a wheelchair (Wheelchair made by MIKI Co., Ltd. (MIKI Co., Ltd.) MYU4-22). A subject with a height of 170 cm, a weight of 65 kg, and a BMI (obesity index) of 22.5 was seated thereon, and the surface pressure distribution was measured 5 minutes after sitting. The measurement result of this surface pressure (body pressure) distribution is shown in FIG. 26. The figure (A) is the cushion material of Example 1, and the figure (B) is the measurement result of the cushion material of Comparative Example 2.
由圖26可知,具備有第1樹脂層(坐骨部收納層)及第2樹脂層(坐骨支撐層)之積層體的實施例1,相較於在該等第1樹脂層(坐骨部收納層)及第2樹脂層(坐骨支撐層)之積層體之第2樹脂層不具有切入圖案的比較例2,定位區域的最大壓是相同的,但其最大壓力的範圍變小,定位點的體壓上昇抑制效果非常優異。As can be seen from FIG. 26, in Example 1 provided with the laminate of the first resin layer (ischial portion storage layer) and the second resin layer (ischial support layer), compared to the first resin layer (ischial portion storage layer) ) And the second resin layer of the laminate of the second resin layer (ischium support layer) does not have a cut-out pattern of Comparative Example 2, the maximum pressure in the positioning area is the same, but the range of the maximum pressure becomes smaller, the body of the positioning point The pressure rise suppression effect is very excellent.
從上述之第1~第3比較試驗可知,根據實施例1的緩衝墊材,相較於比較例1及比較例2的緩衝墊材,前滑抑制效果與就座時的體壓分散性能都很優異,而且,座位穩定性與前滑之抑制時之抑制在定位點區域的體壓上昇的效果優異。As can be seen from the first to third comparative tests described above, the cushioning material according to Example 1 has a front slip suppression effect and a body pressure dispersion performance when seated compared to the cushioning materials of Comparative Examples 1 and 2. Very good, and the effect of suppressing the increase in body pressure in the area of the positioning point when the seat stability and the front slip are suppressed.
以上所述的實施形態全部都是例示本發明而不是限定的,本發明可利用其他各種變形態樣及變更態樣來實施。因此,本發明之範圍僅受申請專利範圍及其均等範圍所規定。The above-described embodiments are all illustrative of the present invention and not limiting, and the present invention can be implemented with various other modified forms and modified forms. Therefore, the scope of the present invention is only stipulated by the scope of patent application and its equivalent.
10,C:緩衝墊材 11,21:基底層1 12,12″:第1樹脂層 12a,12a″,22a,32a,42a,52a,62a,72a:孔洞部 12b,12b″:開口緣部 12c,12c″:內壁 12d,12e,12e′,22d,32d,42d,52d,62d,72d:定位點 13,13″:第2樹脂層 13a,13a′,23a,33a,43a,53a,63a,93a,103a,113a,123a,133a,143a,153a,163a,173a,173a,193a,203a,213a,223a,233a,243a,253a,263a,273a,283a,293a,303a,313a,323a,333a,343a,353a,363a,373a,383a,393a,403a,413a,423a,433a,443a,453a,463a,473a,483a,493a,503a,513a,523a:切入圖案 13a″:非貫通切入圖案 13b,13b′,73b,83b,153b,163b,173b,183b,213b,223b,293b,303b,313b,323b,393b,403b,413b,423b,493b,503b,513b,523b:線狀貫通切入溝 13b″:線狀非貫通切入溝 13c,13c′:突片(閥) 13c″:溝間區域 13d:突片區域周邊部(閥周邊部) 13d″:溝間區域周邊部 14:第3樹脂層 14a:非貫通溝 14b:區塊構件 17:就座者 17a:坐骨之周邊部 18:輪椅 18a:座面 21a:硬質部 25,35,45,55,65,75:對應於坐骨的位置 26,36,46,56,66,76:對應於尾骨的位置 73e,83e:交叉部 153f,163f,173f,293f,303f,313f,393f,403f,413f,493f,503f,513f:非貫通切入溝 183g,213g,223g,323g,423g,523g:直線狀非貫通切入溝 F:支撐架台 G:數位測力計 P:座面墊板 S:軸 T:台車 W:錘10, C: cushion material 11,21: basal layer 1 12,12″: the first resin layer 12a, 12a″, 22a, 32a, 42a, 52a, 62a, 72a: holes 12b, 12b″: opening edge 12c, 12c″: inner wall 12d, 12e, 12e′, 22d, 32d, 42d, 52d, 62d, 72d: anchor point 13,13″: 2nd resin layer 13a,13a′,23a,33a,43a,53a,63a,93a,103a,113a,123a,133a,143a,153a,163a,173a,173a,193a,203a,213a,223a,233a,243a,253a,263a ,273a,283a,293a,303a,313a,323a,333a,343a,353a,363a,373a,383a,393a,403a,413a,423a,433a,443a,453a,463a,473a,483a,493a,503a,513a ,523a: Cut into the pattern 13a″: non-through cut-in pattern 13b,13b′,73b,83b,153b,163b,173b,183b,213b,223b,293b,303b,313b,323b,393b,403b,413b,423b,493b,503b,513b,523b: linear through cut groove 13b″: linear non-penetrating cut groove 13c,13c′: Tab (valve) 13c″: inter-groove area 13d: Peripheral part of the tab area (peripheral part of the valve) 13d″: Peripheral area between the trenches 14: 3rd resin layer 14a: Non-through groove 14b: Block widget 17: Seat 17a: Peripheral part of ischia 18: Wheelchair 18a: seat surface 21a: Hard part 25,35,45,55,65,75: corresponding to the position of the ischium 26,36,46,56,66,76: corresponding to the position of the coccyx 73e, 83e: intersection 153f,163f,173f,293f,303f,313f,393f,403f,413f,493f,503f,513f: non-through cut-in groove 183g, 213g, 223g, 323g, 423g, 523g: straight non-through cut groove F: Support stand G: digital dynamometer P: seat cushion S: axis T: trolley W: Hammer
圖1是概略地顯示本發明之一實施形態之緩衝墊材之構成的分解立體圖。 圖2是概略地顯示圖1之實施形態之緩衝墊材之主要構成即第1樹脂層及第2樹脂層之構成的分解立體圖。 圖3是概略地顯示圖1之實施形態之緩衝墊材之主要構成即第1樹脂層及第2樹脂層之構成的立體圖。 圖4是圖5之A-A線截面圖。 圖5是概略地顯示圖1之實施形態之緩衝墊材的第2樹脂層之非變形時及變形時之構成的平面圖。 圖6是顯示圖1之實施形態之緩衝墊材之孔洞部與切入圖案之組合之變更例的平面圖。 圖7是顯示圖1之實施形態之緩衝墊材之切入圖案之變更例的平面圖。 圖8是圖1之實施形態之緩衝墊材之切入圖案之變更例的平面圖。 圖9是圖1之實施形態之緩衝墊材之切入圖案之變更例的平面圖。 圖10是圖1之實施形態之緩衝墊材之切入圖案之變更例的平面圖。 圖11是圖1之實施形態之緩衝墊材之切入圖案之變更例的平面圖。 圖12是圖1之實施形態之緩衝墊材之切入圖案之變更例的平面圖。 圖13是顯示圖1之實施形態之緩衝墊材之孔洞部之變更例的平面圖。 圖14是用以說明圖1之實施形態之緩衝墊材的作用效果的圖。 圖15是用以說明圖1之實施形態之緩衝墊材的作用效果的圖。 圖16是用以說明圖1之實施形態之變更態樣的作用效果的圖。 圖17是顯示圖1之實施形態的緩衝墊材及其變更態樣的構成的平面圖及截面圖。 圖18是顯示將圖1之實施形態的緩衝墊材適用於輪椅的座面之例的立體圖。 圖19是概略地顯示本發明之其他實施形態之緩衝墊材的構成的分解立體圖。 圖20是顯示本發明之緩衝墊材之實施例1之第1樹脂層的形狀及尺寸的平面圖及側面圖。 圖21是顯示本發明之緩衝墊材之實施例1之第2樹脂層的形狀及尺寸的平面圖及側面圖。 圖22是顯示本發明之緩衝墊材之實施例1之第3樹脂層的形狀及尺寸的平面圖、正面圖及側面圖。 圖23是說明本發明之緩衝墊材之實施例1、比較例1及比較例2之第1比較試驗用測定裝置的構成的模式圖。 圖24是顯示本發明緩衝墊材之實施例1、比較例1及比較例2之前滑力的測定結果的特性圖。 圖25是顯示本發明緩衝墊材之實施例1、比較例1及比較例2之體壓分散性的壓力特性圖。 圖26是顯示本發明緩衝墊材之實施例1及比較例2之定位點的體壓分散性的壓力特性圖。FIG. 1 is an exploded perspective view schematically showing the structure of a cushion material according to an embodiment of the present invention. FIG. 2 is an exploded perspective view schematically showing the configuration of the first resin layer and the second resin layer, which are the main components of the cushion material according to the embodiment of FIG. 1. 3 is a perspective view schematically showing the configuration of the first resin layer and the second resin layer, which are the main components of the cushion material according to the embodiment of FIG. 1. Fig. 4 is a cross-sectional view taken along line A-A of Fig. 5. 5 is a plan view schematically showing the configuration of the second resin layer of the cushioning material of the embodiment of FIG. 1 when it is not deformed and when it is deformed. 6 is a plan view showing a modified example of the combination of the hole portion and the cut pattern of the cushion material of the embodiment of FIG. 1. 7 is a plan view showing a modification example of the cut pattern of the cushion material of the embodiment of FIG. 1. Fig. 8 is a plan view of a modified example of the cut pattern of the cushion material of the embodiment of Fig. 1. Fig. 9 is a plan view of a modified example of the cut pattern of the cushion material according to the embodiment of Fig. 1. Fig. 10 is a plan view of a modified example of the cut pattern of the cushion material of the embodiment of Fig. 1. Fig. 11 is a plan view of a modified example of the cut pattern of the cushion material according to the embodiment of Fig. 1. Fig. 12 is a plan view of a modified example of the cut pattern of the cushion material of the embodiment of Fig. 1. Fig. 13 is a plan view showing a modified example of the hole portion of the cushion material of the embodiment of Fig. 1. 14 is a diagram for explaining the effect of the cushioning material of the embodiment of FIG. 1. 15 is a diagram for explaining the effect of the cushioning material of the embodiment of FIG. 1. FIG. 16 is a diagram for explaining the effect of the modification of the embodiment of FIG. 1. FIG. 17 is a plan view and a cross-sectional view showing the configuration of the cushion material of the embodiment of FIG. 1 and its modified form. 18 is a perspective view showing an example of applying the cushioning material of the embodiment of FIG. 1 to the seat surface of a wheelchair. 19 is an exploded perspective view schematically showing the structure of a cushion material according to another embodiment of the present invention. 20 is a plan view and a side view showing the shape and dimensions of the first resin layer of Example 1 of the cushioning material of the present invention. 21 is a plan view and a side view showing the shape and dimensions of the second resin layer of Example 1 of the cushioning material of the present invention. 22 is a plan view, a front view, and a side view showing the shape and dimensions of the third resin layer of Example 1 of the cushioning material of the present invention. 23 is a schematic diagram illustrating the configuration of the first comparative test measuring device of Example 1, Comparative Example 1 and Comparative Example 2 of the cushioning material of the present invention. 24 is a characteristic diagram showing the measurement results of the sliding force before Example 1, Comparative Example 1 and Comparative Example 2 of the cushion material of the present invention. 25 is a pressure characteristic diagram showing the body pressure dispersibility of Example 1, Comparative Example 1, and Comparative Example 2 of the cushion material of the present invention. 26 is a pressure characteristic diagram showing the body pressure dispersibility of the positioning points of Example 1 and Comparative Example 2 of the cushion material of the present invention.
10:緩衝墊材 10: cushion material
11:基底層 11: basal layer
12:第1樹脂層 12: 1st resin layer
12a:孔洞部 12a: Hole
12b:開口緣部 12b: opening edge
12c:內壁 12c: inner wall
12d:定位點 12d: anchor point
13:第2樹脂層 13: Second resin layer
13a:切入圖案 13a: Cut in the pattern
13b:線狀貫通切入溝 13b: linear through cut
14:第3樹脂層 14: 3rd resin layer
Claims (30)
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JP2018162387A JP6901778B2 (en) | 2018-08-31 | 2018-08-31 | Cushion material |
JP2018-162387 | 2018-08-31 |
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TW202011875A true TW202011875A (en) | 2020-04-01 |
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TW108125079A TW202011875A (en) | 2018-08-31 | 2019-07-16 | Cushioning pad capable of maintaining predetermined body pressure distribution performance, enhancing seat stability and preventing slipping forward |
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KR (1) | KR102656387B1 (en) |
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JP7307353B2 (en) * | 2018-04-27 | 2023-07-12 | テイ・エス テック株式会社 | vehicle seat |
KR102513735B1 (en) * | 2021-06-14 | 2023-03-27 | 주식회사 이앤이트레이딩 | Mattress that changes property through perforation |
US20230292930A1 (en) * | 2022-03-15 | 2023-09-21 | Dreamwell, Ltd. | Mattress assemblies including an orthotic layer and processes for forming the same |
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JPS5657305U (en) | 1979-10-11 | 1981-05-18 | ||
JPS5695265U (en) | 1979-12-21 | 1981-07-28 | ||
US5079790A (en) * | 1990-10-01 | 1992-01-14 | Pouch William H | Foam cushion for use with a wheel chair |
US5845352A (en) * | 1996-07-12 | 1998-12-08 | Roho, Inc. | Foam-air hybrid cushion and method of making same |
AU7816600A (en) * | 1999-10-20 | 2001-04-30 | Sung-Hwan Keal | Seat for avoiding hip pain |
WO2003009726A1 (en) * | 2001-07-24 | 2003-02-06 | Yoichi Inaba | Seat part structure of chair |
JP2003325270A (en) * | 2002-05-16 | 2003-11-18 | Haru Sato | Square floor cushion with hole |
JP2006087871A (en) * | 2004-09-22 | 2006-04-06 | Nippon Clean Engine Lab Co Ltd | Device and method for supporting body posture |
JP5355397B2 (en) * | 2007-06-26 | 2013-11-27 | 信義 森田 | Cushion for bedding, mat for bedding, and method for manufacturing bedding cushion |
AT10973U1 (en) * | 2008-12-01 | 2010-02-15 | Mojca Tamas | DEVICE FOR SUPPORTING A BODY PART OF A PERSON AND A SITTING OPPORTUNITY |
JP2011218005A (en) * | 2010-04-12 | 2011-11-04 | Takano Co Ltd | Seat cushion |
US8919880B2 (en) * | 2012-03-27 | 2014-12-30 | Haworth, Inc. | Flexible seating surface |
JP3186561U (en) * | 2013-05-23 | 2013-10-17 | 広行 金澤 | Buttock cushion |
US9789018B2 (en) * | 2013-10-30 | 2017-10-17 | Otto Bock Healthcare Lp | Cushion for seating |
ITFI20140016U1 (en) * | 2014-04-07 | 2015-10-07 | Materassificio Montalese S P A | A MATTRESS IN POLYURETHANE MATERIAL PROVIDED WITH AIRCRAFT CUTS. |
US10486571B2 (en) * | 2015-03-27 | 2019-11-26 | Ts Tech Co., Ltd. | Chair |
KR101714982B1 (en) * | 2016-08-25 | 2017-03-09 | 조영숙 | A supporter for dispersing pressure of local body |
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