201238509 六、發明說明： 【發明所屬之技術領域】 本發明係有關於運動頭盔，特定而言係有關於具有可 輕易移除耳罩之運動頭盔。 【先前技術】 現在的曲棍球頭盔通常包括一實心且高密度之聚乙 烯外Λ又，其设有内部襯墊以保護穿戴者的頭部。曲棍球頭 盔通&還包括一適配系統，有助於使一頭盍適當地配合穿 戴者。例如，現行的許多頭盘包括可以沿轴向彼此相對移 動之兩件式外殼，以及一内部橫向適配系統，以便調整頭 蓋對於穿戴者的頭部之適合程度。此種可調整式頭蓋之一 實例係如聰年8月13日申請之美國專射請案第 12/191，〇〇〇被所述，其係以全文納人本說明書的範圍。 ^曲棍球頭|通常還包括耳罩’用以保護穿戴者的耳 才、在某些頭盘中’這些耳罩藉由多個螺絲、螺紋固定件、 /、他零件U於頭|外殼上，因此其可⑽移除，然 而，在某些其他之頭盘中，耳罩係模製成外殼的一部份， ==法移除。球員通常會移除耳罩，以提高頭盘整 ’ U ’並改善與其他球員、教練及裁 了移除耳罩，球員或甽蛣吕芬“ ^ 、一 〇貝首先茜要移除螺絲及其他零 件。在此過程中，螺絲、 掉出頭盔或落入頭“或其他零件經常會 【:二内容Γ 導致此移除過程變得非常終 本發明揭露-種運動頭盘，其包含耳罩，上述耳罩能 201238509 = 工具或其他物件的情況下，且能夠在不需要移 于曰、…s，、他零件的情況下’輕易地從頭I上移除。本發 的其他特徵與優點將詳述於後續實施方式中。 【實施方式】 ，以下將列舉並詳細朗數種實蘭，藉⑽解本發明 =技容並得據以實施。然而，熟悉該項技藝者皆應瞭 柯以在不具有部分元件的情況下仍可實施。另 分眾所皆知的結構或功能並未顯示或詳加說明，以 避免模糊本發明的技術重點。 需=意者為，在本文中所使用的名詞術語雖然搭配本 ^月之某-料實施例進行說明，但其仍 ㈣釋作為其範圍。另外,雖然部分名詞會在= 職明’但若欲限縮解釋任何名詞術 定義於下列說明中。 f凡正且具體地 在= 月書中’若載明某元件的數量為單—個或複數 ==4_可以分別涵蓋複數個或單—個。另外，針 + ’除非是特別載明其僅限於單一個元件、並 排除列表中二個或以上之元件中的其他元件，則一 子之解釋應包括⑷列表申之任一元件 二二 件、或刚表巾之所有元件的任意組合。中之所*兀 :參照第一圖所示，本發明揭露一種曲棍球頭盔1〇， 八匕括一外殼12，其尹，外殼12具有一前區姑 域】6、一後區域]8以及一冠區域2〇。如第二圖側】 一實施射，外聽構包括—輯層叫或任-種Γ夠ί 201238509 收衝擊之材料的内層），其係夾置於一薄塑膠外層24及一 薄塑膠内層26之間。 泡棉層之材料係較佳包括一發泡聚丙浠 (polypropylene, EPP )材料，但其亦可替代性地包括一發 泡聚乙烯（polyethylene, EPE )材料、或其組合，另外， 其亦可以包括任何其他適當之能量吸收材料或其組合。薄 塑膠層24及26之材料可以包括聚碳酸酯或其他適當之材 料，且其分別可以由單一塑膠片所形成，或由複數個一同 模製而成之塑膠片所形成。雖然可以使用其他材料，但為 了方便說明，以下敘述係以一發泡聚丙烯泡棉層22夾設於 兩個聚碳酸酯層24及26之間為例。 在一實施例中，内聚碳酸酯層26可以部分或完全省 略，特別是當頭盔採用相對較厚之外層24時。内聚碳酸酯 層26可例如僅覆蓋發泡聚丙烯泡棉層22的特定區域，如 發泡聚丙烯泡棉層22之前、後及下侧區域。一般較佳是在 發泡聚丙烯泡棉層22的至少數個區域上設置内聚碳酸酯 層26，藉以提供比未設置任何内聚碳酸酯層26者更穩定 且更佳的能量吸收結構。另外，在發泡聚丙烯泡棉層22 或聚碳酸酯層26之内表面上較佳設置有舒適的泡棉或其 他舒適的襯墊，藉以提供舒適的適配給穿戴者。 在一實施例中，聚碳酸酯層24及26可以利用真空成 形，並修整成預期的形狀，然後置入設置有預成形之發泡 聚丙烯層22的模具中，以便將聚碳酸酯層24及26黏接或 熔合於發泡聚丙烯層22。在另一實施例中，可以將聚碳酸 201238509 酯層24及26置入發泡聚丙烯模具中，然後與發泡聚丙烯 泡棉進行嵌入成形。在另一實施例中，可以利用射出成形 以形成聚碳酸酯層，然後黏接一發泡聚丙烯泡棉内襯。 由於上述之真空成形或嵌入成形所形成的塑膠層通 常比傳統的射出成形所形成者更輕更薄，所以真空成形或 嵌入成形通常優於射出成形。舉例而言，研究發現，本發 明之内部與外部之聚碳酸酯層24及26可以利用低至約 釐米（mm)之薄板來形成（在經過真空成形製程後，可約為 2釐米（_)厚），相對之下，傳統的射丨成刺$所一般包 含之塑膠外殼的厚度通常約為1.8至3釐米(mm)。然而， 上述之任-種製程或其他適當之製程皆可以用來形成頭 外殼12。 在部分實施例中，聚碳酸醋層可以利用兩種或以上之 製程之組合而形成。舉例而言，外層24可以是利用射出成 T製程而形成’而内層26可以是利用真空成形製程而形 成。在另-實施例中，外層24之上區域可以是利用嵌入成 形成’而外層24之下區域可以是利用射出成形製 二則。耳罩3〇係較佳由-塑膠材料所形成％ = :任=當之材料所形成。耳軍3。可以是透明 月或不透明，且耳罩30較佳包括一 干 的聲音可以透過開口31傳人穿戴者的耳朵。卜所以外界 6 201238509 各耳罩30係為可移除地固定於一維持機構35上，其 材料係較佳為尼龍、塑膠材料或其他適當之材料。維持機 構35可以在形成頭盔10時，埋設於發泡聚丙烯泡棉層22 中。維持機構35亦可以替代性地是頭盔外殼本身之塑膠材 質的一整體部份，特別是當外殼的全部或部分為一較厚之 射出成形元件。在一實施例中，頭盔外殼例如可為一混合 設計，其包括位於發泡聚丙烯泡棉之上區域的較薄之塑膠 層，以及位於發泡聚丙烯泡棉之下區域的較厚之射出成形 塑膠層，其中，可連接於耳罩30之維持特徵係與下射出成 形區域為一體成形。在本實施例中，射出成形下區域可藉 由鉚釘或其他連接元件而接合或機械性附著於發泡聚丙烯 泡棉層22。 維持機構35可包括單一零件或複數零件。在本實施 例中，維持機構35包括一第一維持構件36以及一第二維 持構件38，其係互相分離設置。第一維持構件36及第二 維持構件38分別包括一軌道34或其他適當之維持構件， 其係突出於第一維持構件36及第二維持構件38之間。相 對地，耳罩30包括一對長孔或通道32，其係可滑動地卡 接於軌道34。在一替代實施例中，執道可設置於耳罩上， 而對應之長孔或通道可設置於維持構件36及38中，藉此 當移除耳罩時，外殼上不會顯露出執道。 如第六圖所示，一個或以上之執道34可以選擇性包 括一開口 40。在本實施例中，耳罩30包括臂部42，其内 表面上設置有垂片或類似結構，當耳罩30設置於執道34 201238509 上時’垂片可以卡接於開口 4 30得以喀地一聲卡入定位， ，^種配置可以使耳罩 耳罩30可以保持在執道34’的^當頭盘1〇受到碰撞時， 以替代性地利用其他配置方式 上。當然，本發明亦可 可以在軌道34上以及耳罩^之保持耳罩30之位置，例如 對應之突起或凸塊。 之通道部位的内區域上設置 藉由將通道32沿著 得耳罩30連接或脫離頭盔=。4若朝適當方向滑動，可以使 配對區域以卡接臂部42或耳罩=軌道包括開口 40或其他 極小的力量便可以使耳罩3〇、〇之其他部位，則僅需要 置。第七圖係顯示頭蓋1G，、或離開其完全連接位 除。 "耳軍30係從頭盔10上移 維持機構35可包括耳環支撑 供耳環52通過。耳環支撐件 ’其具有開口以提 ^义 ^供結構錨狀物’以固定 二/ 聚丙婦層22以及-個或以上 之聚板#層26時（無聚碳酸i旨薄層亦可），由於 發泡聚丙烯及聚碳酸醋薄層24、26未能如較厚之射出成形 外殼-般提供足夠的結構支撐給耳環連接，所以特別需要 設置尋環支料50。耳環支撐件5Q频佳㈣於發泡聚 丙稀廣22 ’以提供堅固之錯狀物給耳環使用，藉以幫助頭 蓋10符合認證標準。 維持機構35亦可選擇性包括螺紋固定件％，用以接 受螺絲，以便在頭蓋10上選擇性設置遮陽片或護面罩（或 其他元件）°此螺紋时件55之材料係較佳包括金屬材 201238509 料’但其亦可以包括任何其他適當之 係較佳包覆-塑膠殼體56 ^盖螺紋固定件 各殼體56之上側平面可以作為:^f機構35朝外突出。 加裝之遮陽片或護面罩可以停留於 累、·.糸頭或 :Γ;齒Γ臂部57,所以當螺絲鎖入:脫二=〜連5 在本料财，縣料 =分別設置於頭盘的側面，且其中設有 ： 分的現存護面罩在職1G_ 般而&，大部 〇 的任一側需要設置兩個或三個 連接點，藉以將遮陽片或護面罩連接於頭I Μ上 =蝴面罩至頭盘上，可以將螺絲(若有螺絲:^ 脫離固疋# 55,然後將遮陽片或護面罩的開口對準孔同 Γ置=將螺絲鎖回固定件55上，藉以固定遮陽片或護 、頭盘10上’在部分實例中’可能需要利用比原來頭 盍上的螺絲更長的其他螺絲，藉以適應遮陽片或護面罩的 厚度。 -各維持機構35可選擇性包括—後垂片6()或其他連接 元件’其包括1 口 62 ’用讀供連接㈣頭^部之一 適配元件。在本實施例中，各垂片6(M系較佳突出穿過發泡 ，丙婦泡棉22之開σ或狹縫，錢進人頭|的内部。然後 藉由將適配元件上的凸桿或類似特徵推進並穿過開口以 201238509 的較大區域後再將其拉入開口 62的較小區域，可將適配元 件上的凸桿或類似特徵固定於垂片60上。可在兩個適配元 件之間設置一個或以上之調整帶或類似之適配裝置，以提 供一可調整式適配系統。 上述之頭盔的特徵可以提供一輕量型頭盔，其與傳統 之兩件式外殼相反，可選擇性模製成單件式。當模製成單 件式時，頭盔不會包含兩件式可調外殼常出現的空隙。因 此，其能夠提供較佳的頭部包覆性及保護性，且其亦能夠 提供頭盔額外的橫向堅固度。單件式外殼亦可以具有較少 的活動零件，所以可以減少零件鬆脫及雜音等。再者，由 於本發明之耳罩30的移除不需要使用工具或其他物件來 實行移除動作，所以其可以比習知耳罩更輕易地移除及重 新組裝。 上述之一個或以上之頭盔特徵亦可以應用於其他頭 盔，如打擊手頭盔、投手頭盔、捕手頭盔、長曲棍球頭盔、 美式足球頭盔等等。舉例而言，可以在一對聚碳酸酯薄層 之間以嵌入成形設置一層發泡聚丙烯泡棉而建構一打擊手 頭盔。再者，還可以在打擊手頭盔之發泡聚丙烯泡棉中埋 設一維持機構，其具有螺紋固定件以連接一遮陽片或護面 罩。 上述實施例之任一者皆可以單獨實施或彼此配合實 施。此外，本發明之頭盔可以包括上述實施例未揭露的額 外特徵。本說明書列舉數種實施例僅為例示性，而非為限 制性者，任何在未脫離本發明之精神與範疇下，而對其進 201238509 行之等效修改或變更， 【圖式簡單說明】 在本發明之圖式 TfT 。 均應包含於後附之申請專利範圍中。 中’相同元件將以相同元件符號表 第-圖為具有可移除式之耳罩之曲棍球職的側視 第一圖為第一圖所示之頭盔的下視圖。 罩及為第—圖及第二圖所示之頭細可移除式耳 罩及耳罩維持機構的側視圖。 構的ί:為第三圖所示之可移除式耳罩及耳罩維持機 罩維=^=及第_所示之可移除式耳罩及耳 的丄六圖為第三圖至第五圖所示之維持機構之-元件 其中耳罩係被 第七圖為第一圖所示之頭盔的側視 移除。 主要元件符號說明】 10頭盔 12外殼 14前區域 16側區域 18後區域 2〇冠區域 11 201238509 22發泡聚丙烯泡棉 24薄塑膠外層 26聚碳酸酯薄層 30耳罩 31、40、62 開口 32通道 34轨道 35維持機構 36、38維持構件 42臂部 50耳環支撐件 52耳環 55固定件 56殼體 57齒部或臂部 58孔洞 60垂片201238509 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a sports helmet, and more particularly to a sports helmet having an easily removable earmuff. [Prior Art] Today's hockey helmets typically include a solid, high-density polyethylene outer casing that is internally provided with a liner to protect the wearer's head. Hockey Head Helmets & also includes an adapting system that helps a scorpion fit the wearer properly. For example, many of the current headstocks include a two-piece housing that can be moved axially relative to each other, and an internal lateral fit system to adjust the fit of the head cover to the wearer's head. An example of such an adjustable head cover is described in the U.S. Patent Application Serial No. 12/191 filed on August 13, the entire disclosure of which is incorporated herein by reference. ^Hockey heads | usually also include earmuffs 'to protect the wearer's ear, in some of the heads' these earmuffs by a plurality of screws, threaded fasteners, /, his parts U on the head | It can therefore be removed (10), however, in some other heads, the earmuffs are molded as part of the outer casing, == removed. Players usually remove the earmuffs to improve the heading of the 'U' and improve with other players, coaches and cuts to remove the earmuffs, players or 甽蛣 吕芬 "^, a mussel first to remove the screws and other Parts. During this process, the screws, falling out of the helmet or falling into the head "or other parts often [: two content 导致 causes this removal process to become very endless. The invention discloses a sports head disk that contains earmuffs, The earmuffs described above can be used in the case of tools or other items and can be easily removed from the head I without moving to the sputum, ...s, and other parts. Other features and advantages of the present invention will be detailed in the subsequent embodiments. [Embodiment] Hereinafter, the following will be enumerated and described in detail, and (10) the invention will be explained and the technology will be implemented. However, those skilled in the art should have implemented it without any components. Other well-known structures or functions are not shown or described in detail to avoid obscuring the technical aspects of the present invention. Needs = meaning, the terminology used in this article is described in conjunction with the embodiment of this month, but it is still (4) interpreted as its scope. In addition, although some nouns will be in the = job title, but if you want to limit the interpretation of any noun, it is defined in the following description. f Wherever and specifically in the = month book, if the number of elements is single or plural == 4_ can cover multiple or single - respectively. In addition, the needle + ' unless specifically stated that it is limited to a single component and excludes other components from two or more components in the list, the interpretation of a sub-interpretation shall include (2) two or two components of the list, Or any combination of all the elements of the towel. According to the first figure, the present invention discloses a hockey helmet 1〇, a casing including a casing 12, and the casing 12 has a front area, a front area, and a rear area. Crown area 2〇. As shown in the second figure, the external listening structure includes the layer of the layer or the type of the layer of the material that is impacted by the layer of the material. The layer is placed on a thin plastic outer layer 24 and a thin plastic inner layer. between. The material of the foam layer preferably comprises a foamed polypropylene (EPP) material, but it may alternatively comprise a polyethylene (PEE) material, or a combination thereof, or Any other suitable energy absorbing material or combination thereof is included. The materials of the thin plastic layers 24 and 26 may comprise polycarbonate or other suitable materials, and they may each be formed from a single plastic sheet or from a plurality of plastic sheets molded together. Although other materials may be used, for convenience of explanation, the following description is made by sandwiching a foamed polypropylene foam layer 22 between two polycarbonate layers 24 and 26. In an embodiment, the inner polycarbonate layer 26 may be partially or completely omitted, particularly when the helmet is a relatively thick outer layer 24. The inner polycarbonate layer 26 may, for example, cover only a particular area of the foamed polypropylene foam layer 22, such as the front, back and underside regions of the expanded polypropylene foam layer 22. It is generally preferred to provide an inner polycarbonate layer 26 over at least a plurality of regions of the expanded polypropylene foam layer 22 to provide a more stable and better energy absorbing structure than if no inner polycarbonate layer 26 is provided. In addition, a comfortable foam or other comfortable pad is preferably provided on the inner surface of the foamed polypropylene foam layer 22 or the polycarbonate layer 26 to provide a comfortable fit to the wearer. In one embodiment, the polycarbonate layers 24 and 26 may be vacuum formed and trimmed to the desired shape and then placed into a mold provided with a preformed expanded polypropylene layer 22 to laminate the polycarbonate layer 24. And 26 is bonded or fused to the foamed polypropylene layer 22. In another embodiment, the polycarbonate 201238509 ester layers 24 and 26 can be placed into a foamed polypropylene mold and then insert molded with expanded polypropylene foam. In another embodiment, injection molding can be utilized to form a polycarbonate layer and then a foamed polypropylene foam liner is bonded. Vacuum forming or insert forming is generally preferred over injection forming because the plastic layers formed by vacuum forming or insert forming described above are generally lighter and thinner than those formed by conventional injection molding. For example, it has been found that the inner and outer polycarbonate layers 24 and 26 of the present invention can be formed from sheets as low as about a centimeter (mm) (about 2 cm after a vacuum forming process). Thick), in contrast, the conventional plastic spurs generally contain a plastic outer casing typically having a thickness of about 1.8 to 3 centimeters (mm). However, any of the above processes or other suitable processes can be used to form the head casing 12. In some embodiments, the polycarbonate layer can be formed using a combination of two or more processes. For example, the outer layer 24 may be formed using an injection T process and the inner layer 26 may be formed using a vacuum forming process. In other embodiments, the upper region of the outer layer 24 may be formed by embedding and the region below the outer layer 24 may be formed by injection molding. The earmuffs 3 are preferably formed of -plastic material. Ear army 3. It may be transparent moon or opaque, and the earmuffs 30 preferably include a dry sound that can be transmitted through the opening 31 to the wearer's ear. Therefore, the outer cover 6 201238509 is removably attached to a maintenance mechanism 35, and the material thereof is preferably nylon, plastic material or other suitable material. The maintenance mechanism 35 can be embedded in the foamed polypropylene foam layer 22 when the helmet 10 is formed. The maintenance mechanism 35 may alternatively be an integral part of the plastic material of the helmet shell itself, particularly when all or part of the outer casing is a thicker injection forming element. In one embodiment, the helmet shell can be, for example, a hybrid design that includes a thinner layer of plastic on the area above the foamed polypropylene foam and a thicker shot in the area below the foamed polypropylene foam. The plastic layer is formed, wherein the maintenance feature attachable to the earmuff 30 is integrally formed with the lower injection molding region. In this embodiment, the injection-formed lower region may be joined or mechanically attached to the expanded polypropylene foam layer 22 by rivets or other connecting elements. The maintenance mechanism 35 can include a single part or a plurality of parts. In the present embodiment, the maintaining mechanism 35 includes a first maintaining member 36 and a second maintaining member 38 which are disposed apart from each other. The first maintaining member 36 and the second maintaining member 38 each include a rail 34 or other suitable retaining member that projects between the first retaining member 36 and the second retaining member 38. Oppositely, the earmuffs 30 include a pair of elongated holes or channels 32 that are slidably snapped onto the track 34. In an alternate embodiment, the obstruction can be placed on the earmuffs, and corresponding elongated holes or channels can be provided in the retaining members 36 and 38, whereby the outer cover does not reveal obscurity when the earmuff is removed. . As shown in the sixth figure, one or more of the lanes 34 may optionally include an opening 40. In the present embodiment, the earmuffs 30 include an arm portion 42 having a tab or the like disposed on the inner surface thereof. When the earmuffs 30 are disposed on the road 34 201238509, the tabs can be snapped onto the opening 4 30. The snap-in positioning allows the earmuffs earmuffs 30 to remain in the obstruction 34' when the head-panel 1 is impacted, in lieu of other configurations. Of course, the present invention may also be provided on the track 34 and in the position of the ear cup 30, such as corresponding projections or projections. The inner region of the passage portion is provided by connecting the passage 32 along the ear cup 30 or from the helmet. 4 If you slide in the proper direction, you can make the mating area include the opening 40 or other extremely small force with the engaging arm portion 42 or the earmuffs = track, so that the earmuffs 3 and other parts of the earmuffs are only required. The seventh figure shows the head cover 1G, or is removed from its fully connected position. " The Ear 30 system moves up from the helmet 10 The maintenance mechanism 35 can include earring support for the earrings 52 to pass. The earring support 'has an opening to provide a structural anchor' to fix the two/polypropylene layer 22 and one or more of the slabs 26 layer 26 (no polycarbonate may be a thin layer) Since the expanded layers of polypropylene and polycarbonate 24, 26 do not provide sufficient structural support for the earring connection as a thicker injection molded outer casing, it is particularly desirable to provide the seek ring 50. The earring support 5Q is good (4) in the foamed polypropylene wide 22' to provide a strong ration for the earrings to help the headgear 10 meet the certification standards. The retaining mechanism 35 can also optionally include a threaded fastener % for receiving a screw to selectively provide a sun visor or face shield (or other component) on the head cover 10. The material of the threaded member 55 preferably comprises a metal material. 201238509 material 'but it may also include any other suitable suitable coating - plastic housing 56 ^ cover threaded fasteners The upper side plane of each housing 56 can be used as: the mechanism 36 protrudes outward. The added sunshade or face mask can stay in the tired, ·. Shantou or: Γ; Γ arm part 57, so when the screw locks in: off two = ~ even 5 in this material, county material = set separately The side of the head plate, and it is provided with: the existing existing face mask is on the 1G_ general &, on either side of the majority, two or three connection points are required to connect the sunshade or the face shield to the head I Μ上=蝶面罩 to the head plate, you can screw (if there is a screw: ^ from the solid 疋 # 55, then align the opening of the sun visor or face shield with the hole = lock the screw back to the fixing member 55, In order to fix the sun visor or the headrest 10, 'in some examples' it may be necessary to use other screws longer than the screws on the original head sill to accommodate the thickness of the sun visor or face shield. - Each maintenance mechanism 35 can be selected The inclusion includes a rear tab 6() or other connecting element 'which includes a port 62' for reading and connecting (4) one of the fitting elements. In this embodiment, each tab 6 (M system is better highlighted) Through the foaming, the opening σ or slit of the C-bubble bubble 22, the money enters the inside of the head | and then by fitting the component A lug or similar feature is advanced through the opening to a larger area of 201238509 and then pulled into a smaller area of the opening 62 to secure the tab or similar feature on the adapter member to the tab 60. One or more adjustment straps or similar adapters are provided between the two adapter elements to provide an adjustable adapter system. The helmet described above can provide a lightweight helmet that is conventionally The housing is reversed and can be selectively molded in a single piece. When molded in a single piece, the helmet does not contain the gaps that often occur in a two-piece adjustable housing. Therefore, it provides better head wrapping. Sexual and protective, and it can also provide additional lateral firmness of the helmet. The one-piece housing can also have fewer moving parts, so it can reduce loose parts, noise, etc. Moreover, due to the earmuffs 30 of the present invention The removal does not require the use of tools or other items to perform the removal action, so it can be removed and reassembled more easily than conventional earmuffs. One or more of the above helmet features can also be applied to other helmets. Such as a striker helmet, a pitcher helmet, a catcher helmet, a lacrosse helmet, an American football helmet, etc. For example, a layer of foamed polypropylene foam can be constructed by insert molding between a pair of polycarbonate thin layers. In addition, it is also possible to embed a maintenance mechanism in the foamed polypropylene foam of the striker helmet, which has a threaded fixing member for connecting a sunshade or a face shield. Any of the above embodiments may be separately provided. The invention may be implemented or cooperated with each other. In addition, the helmet of the present invention may include additional features not disclosed in the above embodiments. The present invention is to be construed as illustrative only and not as a limitation. And the equivalent modification or change of the line 201238509, [Simplified description of the figure] in the drawing TfT of the present invention. All should be included in the scope of the patent application attached. The same elements will be denoted by the same element symbol. Figure - is a side view of the hockey player with removable earmuffs. The first view is the lower view of the helmet shown in the first figure. The cover is a side view of the head-removable earmuff and earmuff maintenance mechanism shown in Figures 1 and 2. ί: The removable earmuffs and earmuffs shown in the third figure maintain the hood dimension = ^ = and the _ shown in the removable earmuffs and the ear of the six figures is the third picture to The element of the maintenance mechanism shown in the fifth figure, wherein the earmuffs are removed by the side view of the helmet shown in the first figure in the seventh figure. Main component symbol description] 10 helmet 12 outer casing 14 front area 16 side area 18 rear area 2 crown area 11 201238509 22 foamed polypropylene foam 24 thin plastic outer layer 26 polycarbonate thin layer 30 ear cover 31, 40, 62 opening 32 channel 34 rail 35 maintaining mechanism 36, 38 maintaining member 42 arm portion 50 earring support 52 earring 55 fixing member 56 housing 57 tooth portion or arm portion 58 hole 60 tab