M271421 八、新型說明： 【新型所屬之技術領域】 一種具透氣性之 本新型是有關於一種鞋墊，特別是指 PU鞋墊。 【先前技術】 現有的鞋塾主要可分為兩種’第一種是以Eva製成 第二種則是利用PU模塑成型黏合表布所製成。 為了達到具有較佳M271421 8. Description of the new type: [Technical field to which the new type belongs] A breathable type This new type relates to an insole, especially a PU insole. [Prior art] The existing shoe lasts can be mainly divided into two types. The first is made of Eva and the second is made of PU molding and bonding table cloth. To achieve better
、下層部位製成鞋墊，至於中間的一連接層12則捨棄，相 參圖1，現有的EVA鞋墊發泡材i 的彈f ，使 凹槽 當耗材、不經濟，另外，EVA材料因不透氣，也容易產生 吸盤效應，造成穿著時的悶熱不適感。 芩圖2，其次，EVA鞋墊發泡材又有另一種沿切割線 L1剖切之製法，這種製法雖可使鞋墊形成孔隙而兼具有透 氣效果，但是無法使鞋墊表面形成兼具止滑功能及美觀作 用的浮凸部（Profile)設計，至於中間的一連接層13亦需捨 棄’相當耗材、不經濟，反之，若企圖藉由貼設不同物性 的彈性塊’例如去表皮的PU發泡材（〇pen Cell PU Foam)或 PU廢料重新聚合的PU發泡材（ReCyCle(J PU F〇am)來解決舒 適穿著之問題，亦無法以熱壓成型製成，必須先在烘箱内 經過烘烤軟化後，再置於約⑺艽的冷模模塑成型，製程相 當耗時，而且這種製法亦無法有浮凸部（profile)之設計。 M271421 再者，EVA鞋墊發泡材之耐壓縮性較差（ASTM D-395 約60%〜99%之間），因此穿著一段時間後，其厚度容易變 薄，相對使得鞋内空間變得很大，也造成穿著不適。 參圖3,至於既有的PU鞋墊2(如公告第558496號專 利），其製法則是將包覆布預先置入模具内，當PU灌入模 具中，即可使PU與包覆布結合為一體，雖然，其Pu材質 已能達到一定的透氣功用，但是，為避免在模塑當時PU材 料滲入編織的表面層22的孔隙，通常會在該表面層22的 底面預先貼設上一層不透氣的TPU薄膜23，但如此一來， 原本具有透氣作用的該PU鞋墊本體21與表面層22,在該 TPU薄膜23的阻隔之下，則失去透氣功能，導致使用者穿 著時，同樣感到悶熱不透氣。 【新型内容】 因此’本新型之目的，即在提供一種透氣性良好且節 省原物料的具透氣性之PU鞋墊。 於是，本新型具透氣性之pu鞋墊包含一基層及一接觸 層。 該基層為PU材質製成，並具有相背設置的一頂面及_ 底面、二分別形成於該頂面及該底面的使用部，以及複數 個呈相間隔地自該使用部的一外表面朝内部延伸的凹陷部 位。 該接觸層是以可供流動物質通過的材料製成，並貼合 在該基層的頂面。 【實施方式】 M271421 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之四較佳實施例的詳細說明中，將可清 楚的明白。 本實施例被詳細描述之前，要注意的是，在以下的說 明中，類似的元件是以相同的編號來表示。 參圖4、圖5與圖6,本新型具透氣性之PU鞋墊之第 一較佳實施例包含一基層3，及一接觸層4。圖4所示之假 想線的基層3的形成，必需配合模具先灌注成型一 pu發泡 材30 ’接著貼合該接觸層4(或再經熱壓固結），最後再沿圖 4中假想線示意之人體足部形狀裁切成型。 參圖4、圖5與圖0，該基層3具有相背設置的一頂面 、一底面32，以及複數個相互間隔地自該頂、底面3 i、 32朝内部延伸的凹陷部位33，藉該等凹陷部位33之形成 ’使該頂、底面31、32上分別形成有—構成緊密相連的使 用部34,在本實施例中，該等使用部34是由縱橫交錯的數 肋條341構成複數矩型孔目（即凹陷部位％)，當然，可藉由 該等肋條341之線條變化，製成圓形、錐柱、三角形、五 邊形或是六邊形的孔目 裳:笙，姿回，_ t 曰···寺4，參圖7，即由六邊形之孔目 組構成一蜂巢型的使用部34。 >圖5與圖6，本實施例藉由模塑成型 ^的基層3’只要沿㈣線L將祕層3 _分為二，料 鞋墊發泡材，這時，該基層3頂面Μ的使用部％ 被汉疋成該第一基層3,的一 ㈣心 便用34，而該基層3底面32 的使用#34被設^成該第二基層3，，的—使用部％ ”，而在 M271421 分割之後，只要再貼合-層具透氣性的接觸層4(或再經埶 壓固結），經裁切等加工整飾作業後，即可提供舒適性佳且 兼具透氣的使用效果。 參圖8,本新型之第二較佳實施例包含一基層3，及一 接觸層4。 該基層3具有相背設置的一頂面3 ^ ^ ^ 只回及一底面32，以及 複數個相互間隔地自該頂面31貫穿該底面32的穿孔35, 相互間隔的穿孔35之形成，使該基層3構成如圖4呈緊密 相連。 該接觸層4為線材編織或是皮革製成，具有透氣特性 ，當貼合在該PU基層3頂面，可達到舒適性佳的使用效果 類似於第-較佳實施例，在本例中，該基層3於模塑 成型時’是製成實際使用的兩倍厚度，只要再沿切割線l 以水平方向剖半對切，即可構成—第—基層（實線之基層3) 及-第二基層(假想線之基層3)，藉此，本實施例在製作上 ’不僅快速方便，且配合該等穿孔35的使狀下，透氣性 更佳。 參圖9，本新型之第三較佳實施例之基層3結構與第二 實&例相同’不同之處在於··該基層3在製成實際使用的 兩倍厚度之後，只要再沿切割線L以傾斜方向剖半對切， 即可構成-端較厚、另_端較薄的鞋墊，使用之時，其傾 斜面疋朝向人體足部’如此_來，該鞋墊除具有與上述實 施例相同的透氣性之外，更兼具有符合人體工學的效果。 M271421 參圖10,本新型之第四較佳實施例與第一實施例相同 ，不同之處在於：只是沿著切割線L以傾斜方向剖半對切 形成一第一基層3’及一第二基層3，，，且該第一、二基層3, 、3”分別構成如圖9之一端較厚、另一端較薄的鞋墊，使 用情形與第三實施例相同，續參圖丨丨，再者，可在該第一 、二基層3’、3”的切割面上（即相當於該第一、二基層3,、 3”的頂面31’、31，，）利用熱壓形成有多數浮凸部36(1>1>〇出幻 及邊牆（side wall) 37，藉此，以達到兼具止滑及飾化作用 〇 值得一提的是，本新型之PU材質製成的基層3，主要 成份比例是由聚醚三元醇（Mw4500) 1〇〇、錫類催化劑〇 〇4 〜0·12、胺類催化劑〇·〇4〜〇·12、矽膠整泡劑！〜2、水 0.5〜2以及聚合二苯甲烷二異氰酸酯（聚合MDI，其中 NCO% 29.2) 41等原料混合組成。模塑成型的條件為，pu 發泡體的原料溫度2(TC〜30°C、PU彈性體的原料溫度9〇 °C〜ll〇°C、模具溫度30°C〜120°C，脫模時間3分鐘〜2〇 分鐘，PU發泡體的成品比重〇·〇8〜0.40，而pu彈性體的 成品比重0.95〜1.10。PU發泡體熱壓成型該等浮凸部36及 邊牆37的條件是，熱壓模具溫度160°C〜21〇°c，成型時間 60秒〜360秒，成型機壓力20kg/cm2〜60kg/cm2。 參圖12、圖13與圖14,進一步地，本新型之具透氣 性的PU鞋墊，更包含有至少一個貼合在該基層3的黏彈性 層5，該黏彈性層5與該基層3可選用同材質同物性、同材 質不同物性或不同材質不同物性的材料製成，例如去表皮 M271421 的PU發泡材（〇pen Cell PU Foam)或PU廢料重新聚合的pu 發泡材（Recycled PU Foam，俗稱聚合泡綿），或是pu Ge卜 橡塑膠塊、橡塑膠發泡材、中空氣囊等其中一種或任_種 以上的組合，該黏彈性層5可置於鞋墊之内腰、前掌、後 跟或全腳掌。見圖12，當貼置於PU鞋墊後跟部位時，該 等黏彈性層5是呈塊狀，且貼合於該基層3的底面或接觸 層4的表面，並將後跟向上微幅隆起，使pu鞋墊之後跟部 位具有吸震作用。見圖14，當貼置於PU鞋墊後跟部位時 ，該黏彈性層5可為腳杯狀，且貼合於該基層3的底面32 ，直接包覆在後跟底部，如此該PU鞋墊之後跟部位亦具有 吸震作用。見圖13，當貼置在PU鞋墊的全腳掌，該黏彈 性層5為配合基層3構成片狀，且貼合在該基層3與該接 觸層4中間，如此該PU鞋墊亦可達到前掌反彈、後跟吸震 等全方位之緩衝吸震的功效。藉該黏彈性層5之增設，使 该PU鞋墊亦可製成多密度、多硬度或多色的透氣鞋墊。其 次’該黏彈性層5之熱壓成型的條件同於前述基層3之成 型條件，不再贅述。 歸納上述，再將本新型具透氣性之pu鞋墊之優點歸納 如下： 一、透氣性佳：相較於現有EVA鞋墊不透氣且易產生 吸盤效應等缺失，以及雖透氣但無法有浮凸部（Pr〇file)之設 计’本新型之PU鞋墊之連孔率高，表皮為開孔結構，故氣 體可穿透’所以透氣性特佳，而相較於現有之貼設ΤΡυ薄 膜的鞋塾’本新型藉以固定比例成份的原料，不用貼設τΡυ 10 M271421 薄膜，故透氣性、吸震及回彈性佳。 二、製造簡便：相較於EVA鞋墊需要整飾修邊等加工 作業，以及現有貼設TPU薄膜的鞋墊之製程，本新型除了 一般鞋墊自PU發泡基材上裁下之必備製程，不僅無需另外 加工，亦無需貼設TPU薄膜，在成型之後，同於前二者， 只要沿切割線對剖成型即可，故本案具有製造簡便之優點 〇 二、耐壓縮性佳、穿著舒適：相較於Eva之耐壓縮性 差、穿著不舒適之缺點，本案之Pu鞋墊的耐壓縮較佳 (ASTM D-395約20%以下），因此，在穿著一段時間，厚度 較不易變薄，鞋内空間不易變大，故可提高足部穿著之= 適度。 四、 本新型之PU鞋墊因具有部份表皮層，故在相同比 重、硬度及厚度的情況下，其撕裂力、延伸力、拉力均較 透氣的去表皮的PU發泡材（0pen Cell PU F〇am)4 pu廢料 重新聚合的PU發泡材（ReCyCied PU F〇am)佳。 五、 節省能源：相較於EVA鞋墊需有較高的溫度交聯 ’脫模時間較長，相對較浪費能源之缺失，反觀本案無需 較高的溫度交聯，可縮減脫模時間，故本新型兼具有節= 能源之優點。 /、、可熱壓成型浮凸部及邊牆：EVA鞋墊不管是沿切割 線L、L1冑切之製法，都無法直接以_成型方式製成竿 凸部（Profiie)及邊牆，反觀本新型，本案圖5、圖ι〇之 抑鞋墊皆可直接製成浮凸部（PrQfUe)及邊牆，至於圖8、 M271421 圖9的實施例則僅須再貼合適當厚度及硬度之去表皮的pu 發泡材（Open Cell PU Foam)或PU廢料重新聚合的PU發泡 材（Recycled PU Foam)，再經熱壓、裁切等製成具有浮凸部 及邊牆的鞋墊，故可提高穿著之舒適性。 七、 節省材料：在相同比重、尺寸情況下，本案仍較 去表皮的PU發泡材（Open Cell PU Foam)、PU廢料重新聚 合的PU發泡材（Recycled PU Foam)與灌注型PU鞋墊節省 材料，尤以六角型的基層孔目結構（蜂巢組織）省原物料 ，且耐衝擊強度亦佳。 八、 物性佳··圖9、圖1〇經斜剖後製成的鞋墊（前掌 薄、後跟厚），除符合人體工學之外，經熱壓成型後各部 位之硬度及密度仍均一，為目前EVA發泡材所製鞋墊無法 達成者。 ^ 另外，圖5與圖1〇中，該基層表面雖為平面，當然亦 可使用泡棉剖切機（Pr〇file Cutting Machine)剖有凹凸造 形的表面後，再貼上接觸層4 (不經熱壓），以形成具凹凸 表面的PU鞋塾。 惟以上所述者，僅為本新型之四較佳實施例而已，當 不能以此限定本新型實施之範圍，即大凡依本新型申請^ 利雜圍及新型說明内容所作之簡單的等效變化與修飾，皆 應仍屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 .圖1是-局部剖視圖’說明—種現有的EVA鞋塾發泡 12 M271421 圖2是現有EVA鞋墊發泡材的另一局部剖視圖； 圖3是一局部剖視圖，說明一種現有的PU鞋墊； 圖4是一立體圖，說明本新型之具透氣性之PU鞋墊的 第一較佳實施例； 圖5是一沿圖4之線5-5的一剖視圖； 圖6是一剖視圖，說明一基層及一接觸層； 圖7是一平面圖，說明一種蜂巢狀的pu鞋墊發泡材； 圖8是一局部組合剖視圖，說明本新型之第二較佳實 施例； 圖9疋一組合剖視圖，說明本新型之第三較佳實施例 之斜剖構成的PU鞋墊發泡材； 圖1〇是一局部組合剖視圖，說明本新型之第四較佳實 施例之具有一連接部位的斜剖PU鞋墊發泡材； 、圖11是一平面圖，說明該PU鞋墊之連接部位經熱壓 成型有多數不規則的浮凸部及邊牆； 圖12是一組合剖視圖，說明多數黏彈性層貼合於該基 層的底面或一接觸層的表面； 圖13疋一組合剖視圖，說明該片狀黏彈性層貼合於該 基層與該接觸層中間；及 圖14是一組合剖視圖，說明該腳杯狀的黏彈性層貼合 於该基層之後跟部位的底面。 13 M271421 【主要元件符號說明】 3… 4基層 34，· * •使用部 30· · •基材 34，，·， •使用部 3,… •第一基層 341 * 肋條 3，，* ♦第二基層 35…， 穿孔 31… . 頂面 36. · 浮凸部 32·* * 底面 37· · * 邊牆 33·* * 凹陷部位 4 » » * 接觸層 34… ♦ 使用部 5 黏彈性層 14The lower part is made of insoles. The middle connecting layer 12 is discarded. Refer to Figure 1. The existing f of the existing EVA insole foam material i makes the grooves consumable and uneconomical. In addition, the EVA material is not breathable. It is also easy to produce a suction cup effect, which causes a sweltering discomfort when wearing.芩 Figure 2. Secondly, the EVA insole foam has another method of cutting along the cutting line L1. Although this method can make the insoles form pores and have a breathable effect, it cannot make the surface of the insoles have anti-slip properties. Functional and beautiful design of the embossed portion (Profile), as for the middle connection layer 13 also needs to abandon 'quite consumable and uneconomical, on the other hand, if you try to attach elastic blocks with different physical properties', such as skinless PU hair Foam material (〇pen Cell PU Foam) or PU waste material repolymerized PU foam material (ReCyCle (J PU F〇am)) to solve the problem of comfortable wearing, nor can it be made by hot press molding, it must be passed in an oven first. After baking and softening, it is then placed in a cold mold for molding, which is quite time-consuming, and this method cannot be designed with embossed parts. M271421 Furthermore, the resistance of EVA insole foam material Poor compressibility (approximately 60% to 99% of ASTM D-395), so after wearing it for a period of time, its thickness tends to become thinner, which makes the space inside the shoe relatively large and also causes discomfort when wearing it. See Figure 3, as for Existing PU insole 2 (such as announcement No. 558496 (Patent), the manufacturing method is to put the covering cloth into the mold in advance. When the PU is poured into the mold, the PU and the covering cloth can be integrated into one body. Although the Pu material can already achieve a certain ventilation function, but In order to prevent the PU material from penetrating into the pores of the woven surface layer 22 at the time of molding, a bottom layer of an air-impermeable TPU film 23 is usually pasted on the bottom surface of the surface layer 22, but in this way, the The PU insole body 21 and the surface layer 22, under the barrier of the TPU film 23, lose the breathability function, causing the user to feel sultry and airtight when wearing. [New Content] Therefore, 'the purpose of this new model is to provide A breathable PU insole with good breathability and saving raw materials. Therefore, the new breathable pu insole includes a base layer and a contact layer. The base layer is made of PU material and has a top disposed opposite to each other. The surface and the bottom surface, two usage portions formed on the top surface and the bottom surface, respectively, and a plurality of recessed portions extending from an outer surface of the usage portion toward the inside at intervals. The contact layer is based on It is made of a material through which the flowing material can pass, and is attached to the top surface of the base layer. [Embodiment] M271421 The foregoing and other technical contents, features and effects of the new model are best implemented with reference to the fourth figure below. In the detailed description of the example, it will be clearly understood. Before this embodiment is described in detail, it should be noted that in the following description, similar elements are represented by the same number. See FIG. 4, FIG. 5 and FIG. 6. The first preferred embodiment of the new breathable PU insole includes a base layer 3 and a contact layer 4. The formation of the base layer 3 of the imaginary line shown in Fig. 4 must be infused with a mold to form a pu hair. The foam material 30 ′ is then attached to the contact layer 4 (or consolidated by heat pressing), and finally cut and shaped along the shape of the human foot indicated by the imaginary line in FIG. 4. Referring to FIG. 4, FIG. 5 and FIG. 0, the base layer 3 has a top surface, a bottom surface 32, and a plurality of recessed portions 33 extending from the top and bottom surfaces 3 i and 32 toward the inside and spaced apart from each other. The formation of the recessed portions 33 is such that the top and bottom surfaces 31 and 32 are formed on the top and bottom surfaces, respectively, to form closely connected use portions 34. In this embodiment, the use portions 34 are composed of a plurality of ribs 341 that are criss-crossed to form a plurality Rectangular holes (ie recessed parts%), of course, can be made into circular, tapered, triangular, pentagonal or hexagonal holes by changing the lines of these ribs 341: Sheng, posture Back, _ t is said ... Temple 4, see Figure 7, that is, a hexagonal mesh group constitutes a honeycomb-shaped use part 34. > FIG. 5 and FIG. 6, in this embodiment, the base layer 3 ′ formed by molding ^ can be divided into two along the line L, and the insole foam material is used. At this time, the top surface M of the base layer 3 The use portion% is used by the heart of the first base layer 3, and 34 is used, and the use # 34 of the bottom surface 32 of the base layer 3 is set to the second base layer 3,-the use portion% ", and After the M271421 is divided, as long as the contact layer 4 (or consolidated by pressing) is laminated with the breathable contact layer, after processing and finishing operations such as cutting, it can provide comfortable and breathable use. With reference to Fig. 8, the second preferred embodiment of the present invention includes a base layer 3 and a contact layer 4. The base layer 3 has a top surface 3 disposed opposite to each other and only a bottom surface 32, and a plurality of The perforations 35 penetrating from the top surface 31 to the bottom surface 32 and spaced apart from each other make the base layer 3 closely connected as shown in Fig. 4. The contact layer 4 is made of wire braid or leather, It has breathable properties. When attached to the top surface of the PU base layer 3, it can achieve good comfort. The use effect is similar to the first preferred embodiment. In this example, In the molding, the base layer 3 is twice as thick as it is actually used, as long as it is cut in half along the cutting line l in the horizontal direction, the first base layer (solid base layer 3) and -The second base layer (the base layer 3 of the imaginary line), by which, this embodiment is not only fast and convenient to manufacture, but also has better air permeability under the shape of the perforations 35. See FIG. 9, the first The structure of the base layer 3 of the three preferred embodiments is the same as that of the second embodiment & the difference is that after the base layer 3 is made twice as thick as it is actually used, as long as it is cut halfway along the cutting line L in an oblique direction Cut, you can form-insoles with thicker ends and thinner ends. When in use, the inclined surface 疋 faces the human foot. So, this insole has the same breathability as the above embodiment. It also has an ergonomic effect. M271421 Refer to FIG. 10, the fourth preferred embodiment of the present invention is the same as the first embodiment, except that it is only cut in half along the cutting line L in an oblique direction. Forming a first base layer 3 'and a second base layer 3, and the first and second bases 3, 3 "respectively constitute a thicker insole at one end and a thinner end at the other end as shown in Fig. 9. The use situation is the same as that in the third embodiment. Continued to refer to the figure. Furthermore, the first and second base layers 3 ' 3 ”cutting surface (that is, equivalent to the top surfaces 31 ′, 31 ′ of the first and second base layers 3, 3”), a large number of embossed portions 36 (1 > 1 > 〇) are formed by hot pressing. And side wall 37, in order to achieve both anti-slip and decorative effects. It is worth mentioning that the base layer 3 made of the new PU material, the main component ratio is polyether triol (Mw4500) 100, tin-based catalysts 〇04 ~ 0 · 12, amine-based catalysts 〇04 ~ 〇 · 12, silicone foam stabilizer! ~ 2, water 0.5 ~ 2, and polymerized diphenylmethane diisocyanate (polymerized MDI, of which NCO% 29.2) 41 and other raw materials are mixed. The molding conditions are as follows: raw material temperature of pu foam 2 (TC ~ 30 ° C, raw material temperature of PU elastomer 90 ° C ~ 110 ° C, mold temperature 30 ° C ~ 120 ° C, demolding The time is 3 minutes to 20 minutes. The finished product of PU foam has a specific gravity of 0.08 to 0.40, and the finished product of PU elastomer has a specific gravity of 0.95 to 1.10. The PU foam is hot-pressed to form the embossed portions 36 and side walls 37. The conditions are as follows: the temperature of the hot-pressing mold is 160 ° C to 21 ° C, the molding time is 60 seconds to 360 seconds, and the molding machine pressure is 20 kg / cm2 to 60 kg / cm2. See FIG. 12, FIG. 13, and FIG. The new breathable PU insole further includes at least one viscoelastic layer 5 attached to the base layer 3. The viscoelastic layer 5 and the base layer 3 can be made of the same material with the same physical properties, the same material with different physical properties, or different materials. Made of physical materials, such as PU skin (〇pen Cell PU Foam) without skin M271421 or PU recycled foam (Recycled PU Foam, commonly known as polymer foam), or PU Ge rubber plastic Block, rubber-plastic foam material, air bag, or any combination thereof, the viscoelastic layer 5 can be placed on the insole Waist, forefoot, heel or full foot. As shown in Fig. 12, when attached to the heel of a PU insole, the viscoelastic layers 5 are block-shaped and fit on the bottom surface of the base layer 3 or the contact layer 4 Surface, and the heel slightly bulges upward, so that the heel part of the pu insole has shock absorption effect. As shown in Figure 14, when placed on the heel of the PU insole, the viscoelastic layer 5 can be cup-shaped and stick The bottom surface 32 of the base layer 3 is directly covered on the bottom of the heel, so that the heel portion of the PU insole also has shock-absorbing effect. See FIG. 13, when placed on the full sole of the PU insole, the viscoelastic layer 5 is matched The base layer 3 is formed in a sheet shape and fits between the base layer 3 and the contact layer 4, so that the PU insole can also achieve a full range of shock absorption effects such as forefoot rebound and heel shock absorption. By virtue of the viscoelastic layer 5 It is added so that the PU insole can also be made into multi-density, multi-hardness, or multi-color breathable insoles. Secondly, the conditions for the hot-press molding of the viscoelastic layer 5 are the same as those of the aforementioned base layer 3, and will not be described again. The advantages of the new breathable pu insole are summarized as follows: Good breathability: Compared with the existing EVA insoles, they are not breathable and are prone to have a sucker effect, and they are designed to be breathable but cannot have embossed parts (Pr0file). It is an open structure, so the gas can penetrate 'so it is extremely breathable, and compared with the existing shoe last with a TP film, this new type uses a fixed proportion of raw materials, so it is not necessary to attach a τρυ 10 M271421 film, so it is breathable. Good performance, shock absorption and resilience. 2. Easy to manufacture: Compared with EVA insoles that require trimming and trimming and other processing operations, as well as the existing manufacturing process of TPU film-laminated insoles, this new type of insoles are made from PU foamed substrates. The necessary manufacturing process is not only without additional processing, but also without the need to attach TPU film. After molding, it is the same as the previous two, as long as it is formed along the cutting line, so this case has the advantage of simple manufacturing. Good performance and comfortable wearing: Compared with the shortcomings of Eva's poor compression resistance and uncomfortable wearing, the Pu insole in this case has better compression resistance (ASTM D-395 about 20% or less). Therefore, after wearing for a period of time, Degree of thinning is less likely, not easy to change the large space inside the shoe, it can increase wear of the foot = moderate. 4. This new type of PU insole has a partial skin layer. Therefore, under the same specific gravity, hardness and thickness, the tearing force, extension force and tensile force are more breathable and the skinless PU foam material (0pen Cell PU F0am) 4 PU waste repolymerized PU foam (ReCyCied PU Fam) is preferred. V. Energy saving: Compared with EVA insoles, higher temperature cross-linking is required, and the demolding time is longer, and the lack of relatively wasteful energy. In contrast, in this case, higher temperature cross-linking is not required, which can reduce the demolding time. The new type also has the advantage of saving energy. / 、、 The embossed parts and side walls can be hot-pressed: No matter whether the EVA insole is cut along the cutting lines L and L1, it cannot be directly made into the profiie and side walls by _forming method. New type, the insoles shown in Figures 5 and 5 of this case can be directly made into embossed portions (PrQfUe) and side walls. As for the embodiments shown in Figures 8, M271421 and Figure 9, only the skin with appropriate thickness and hardness need to be pasted Pu foam material (Open Cell PU Foam) or PU waste material (Recycled PU Foam) repolymerized, and then hot pressing, cutting, etc. to make insoles with raised parts and side walls, so it can improve Comfortable to wear. 7. Material saving: Under the same specific gravity and size, this case still saves compared to the skinless PU foam (Open Cell PU Foam), PU waste repolymerized PU foam (Recycled PU Foam) and infusion type PU insole. The material, especially the hexagonal base mesh structure (honeycomb structure), saves raw materials, and has good impact strength. 8. Good physical properties. Figure 9 and Figure 10 The insole made after the oblique section (thin forefoot and thick heel), except for ergonomics, the hardness and density of each part after hot pressing are still Uniform, insoles made of EVA foam materials can not be achieved. ^ In addition, although the surface of the base layer in FIG. 5 and FIG. 10 is flat, it is of course possible to use a foam file cutting machine to cut the uneven surface, and then attach the contact layer 4 (not After hot pressing) to form a PU shoe last with an uneven surface. However, the above are only the four preferred embodiments of the new model. When the scope of the new model cannot be limited by this, that is, the simple equivalent changes made according to the application of the new model and the description of the new model And modifications should still fall within the scope of this new patent. [Brief description of the drawings]. Figure 1 is-a partial sectional view 'Explanation-a conventional EVA shoe last foam 12 M271421 Figure 2 is another partial sectional view of the existing EVA insole foam material; Figure 3 is a partial sectional view illustrating a kind of Existing PU insoles; FIG. 4 is a perspective view illustrating the first preferred embodiment of the new type of breathable PU insoles; FIG. 5 is a sectional view taken along line 5-5 of FIG. 4; FIG. 6 is a sectional view 7 illustrates a base layer and a contact layer; FIG. 7 is a plan view illustrating a honeycomb-like pu insole foam material; FIG. 8 is a partial sectional view illustrating the second preferred embodiment of the present invention; FIG. 9 is a combination A cross-sectional view illustrating a PU insole foam material composed of an oblique cross-section of the third preferred embodiment of the present invention; FIG. 10 is a partial cross-sectional view illustrating an oblique cross-section of a fourth preferred embodiment of the present invention having a connecting portion PU insole foam material; Figure 11 is a plan view showing that the connecting part of the PU insole is formed by hot pressing with most irregular embossed portions and side walls; Figure 12 is a combined cross-sectional view illustrating the bonding of most viscoelastic layers On the underside of the substrate or The surface of the contact layer; FIG. 13 is a combined sectional view showing that the sheet-shaped viscoelastic layer is attached between the base layer and the contact layer; and FIG. 14 is a combined sectional view showing that the foot-cup viscoelastic layer is attached to The base layer is followed by the bottom surface of the site. 13 M271421 [Description of main component symbols] 3… 4 base layer 34, · * • using part 30 · · • base material 34, ·, · using part 3, ... • first base layer 341 * rib 3, * ♦ second Base layer 35 ..., perforation 31 .... Top surface 36. · Embossed portion 32 · * * Bottom surface 37 · · * Side wall 33 · * * Recessed part 4 »» * Contact layer 34 ... ♦ Use part 5 Viscoelastic layer 14