JPH09216240A - Mask cushion and its manufacture - Google Patents

Mask cushion and its manufacture

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Publication number
JPH09216240A
JPH09216240A JP2660796A JP2660796A JPH09216240A JP H09216240 A JPH09216240 A JP H09216240A JP 2660796 A JP2660796 A JP 2660796A JP 2660796 A JP2660796 A JP 2660796A JP H09216240 A JPH09216240 A JP H09216240A
Authority
JP
Japan
Prior art keywords
mold
molding
cushion
mask cushion
wall section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2660796A
Other languages
Japanese (ja)
Inventor
Kenji Kawai
Minoru Shibata
稔 柴田
研二 河井
Original Assignee
Sumitomo Bakelite Co Ltd
住友ベークライト株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Bakelite Co Ltd, 住友ベークライト株式会社 filed Critical Sumitomo Bakelite Co Ltd
Priority to JP2660796A priority Critical patent/JPH09216240A/en
Publication of JPH09216240A publication Critical patent/JPH09216240A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide a mask cushion with an integrally molded thick wall section and a uniform thin wall section by the rotary molding to be carried out by using a powder of vinyl chloride plastisol or the like or a paste-like plastic material for molding and injecting quantitatively a material of required minimum amount and also provide a manufacturing method thereof.
SOLUTION: This mask cushion is provided with a thick wall section and a uniform thin wall section formed by a powder of vinyl chloride plastisol or the like or a paste-like plastic material, and the wall thickness of the thick wall section is 1-20mm, and the wall thickness of the thin wall section is 0.2-0.8mm. In the molding method, the material of a required minimum amount is injected quantitatively, and the mask cushion is molded integrally by the rotary molding in which two directions of revolutions on its axis and around the sun are combined together.
COPYRIGHT: (C)1997,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、厚肉部分と均一な薄肉部分を持つプラスチック製マスククッションを回転成形により一体に製造する方法に関するものである。 The present invention relates to relates to a process for preparing together by rotational molding a plastic mask cushion with thick part and uniform thin portion.

【0002】 [0002]

【従来の技術】従来より、麻酔及び救急分野の気道確保に用いる蘇生用マスクのマスククッションは、天然ゴムやシリコーンゴム等のゴム類や塩化ビニル樹脂やポリエチレン樹脂等のプラスチック製品が多く使用されている。 Conventionally, the mask cushion resuscitation mask used for anesthesia and airway emergency field, plastic products such as natural rubber or silicone rubber rubbers and vinyl chloride resin or a polyethylene resin is often used there. ゴム類はディップ成形や圧縮成形、リム成形により成形された後に接着等の後加工を行いクッションが作製されるが、金型構造の関係で、クッションの継ぎ目は接着する必要が生じ、工数がかかり、空気漏れ等の不良の原因にもなる。 Gums dip molding or compression molding, cushion performs post-processing such as bonding after being molded is manufactured by the rim molding, in relation to the mold structure, the seam of the cushion it is necessary to adhere, it takes steps , also cause a failure of the air leakage and the like. また材料費もプラスチック製品に比べ高くつく。 The material cost is also expensive compared to plastic products.

【0003】また、プラスチック製品の中で塩化ビニル樹脂は、塩ビプラスチゾルによるディップ成形や、射出成形とスラッシュ成形の組合せによる製法が知られている。 [0003] Also, the vinyl chloride resin in the plastic products, or dip molding by salt Bipurasuchizoru, method is known by the combination of injection molding and slush molding. マスククッションには、例えばポリカーボネート等で射出成形により作られたマスク本体を接着・固定するための厚肉部分と顔面と密に接触し気密性が持てる程度に柔軟性を有する薄肉部分を持つのが普通であるが、塩ビプラスチゾルによる通常のディップ、スラッシュ、回転成形では同程度の肉厚のものを作製するのが普通であり、部分的に肉厚に差のあるものを一体で作製しようとした場合、薄肉部は焼けすぎ厚肉部は半焼け(生焼け) The mask cushion, that has a thin portion having a flexibility to such an extent that contact tightness haves example the thick portion and the face intimately for adhering and fixing the mask body made by injection molding of polycarbonate or the like is a common, usually dip by salt Bipurasuchizoru, slash, in the rotary molding is usual to prepare those of the wall thickness of comparable, those partially a difference in thickness tried manufactured integrally case, the thin-walled portion is thick too burnt-walled portion is half burnt (half-baked)
になることがあった。 There was to be a. そのため、肉厚に差のある形状のマスククッションを作製したい場合は、厚肉部を射出成形、薄肉部をディップ成形で作製し貼り合わせるか、厚肉部を射出成形や注型成形で作製し、スラッシュ成形金型にはめ込んで再度材料を投入しスラッシュ成形するなど手間のかかる成形方法をとらざるおえなかった。 Therefore, if one wants to create a mask cushion shape with a difference in wall thickness, injection molding the thick portion, or bonded to form a thin portion in dip molding, the thick portion produced by injection molding or cast molding did intractable forced take molding method laborious such as molding slush was charged again material is fitted to the slush molding die.

【0004】また、ポリエチレン樹脂ではブロー成形が行われ低コストでのクッションの成形が可能であるが、 Further, in the polyethylene resin is capable of molding the cushion at a low cost is performed blow molding,
顔面に適した複雑な形状を作製するのは難しく、薄肉部分を均一な肉厚で作製することも困難であり、感触が悪かった。 It is difficult to produce a complex shape which is suitable for the face, it is also difficult to produce a thin portion with a uniform thickness, feel was bad. 本発明者らは、このような問題点を解決すべく、注型成形とスラッシュ成形を組み合わせたマスククッションの一体成形方法を発明し特願平8−17881 The present inventors, in order to solve this problem, Japanese Patent Application No. flat 8-17881 invented integral molding method of a mask cushion combines casting and slush molding
号に開示したが、型の開閉操作が多く、作業工数がかかり、異物混入の危険性も多くまた、薄肉部を作製するスラッシュ成形では他の成形方法に比べ多くの材料が必要であり一度使用し余った材料は材料物性が変化するため再使用できず必ずしも満足のいく成形方法とは言えなかった。 Have been disclosed in JP, mold opening and closing operations of a lot, it takes man-hours, the risk of contamination many also in slush molding to produce the thin wall portion requires more material than the other molding methods used once was excess material not necessarily forming a satisfactory manner can not be re-used for a change in material properties.

【0005】 [0005]

【発明が解決しようとする課題】本発明は、従来のマスククッションの製造方法の中で特に塩ビプラスチゾル等の粉末或いはペースト状のプラスチック材料を用いた成形で必要最小量の材料の定量注入よる回転成形により一体成形された厚肉部分と均一な薄肉部分を持つマスククッション及びその製造方法を提供する。 The present invention 0005] is rotated by quantitative injection of required minimum amount of material, especially molding using powder or pasty plastic material, such as salt Bipurasuchizoru in the conventional method of manufacturing a mask cushion formed by providing a mask cushion and a manufacturing method thereof having a uniform thin portion and the thick portion integrally formed.

【0006】 [0006]

【課題を解決するための手段】本発明は塩ビプラスチゾル等の粉末或いはペースト状のプラスチック材料により厚肉部分と薄肉部分を持つマスククッションを回転成形により一体成形することを特徴とするマスククッション及びその製造方法であって、回転成形が塩ビプラスチゾル等の粉末或いはペースト状のプラスチック材料を定量注入し、自転及び公転2方向の回転と自転(水平)方向のみの回転を組み合わせた回転成形であるマスククッション及びその製造方法であって、マスククッションの肉厚が厚肉部で1〜20mm、更に薄肉部で0.2〜0. The present invention SUMMARY OF] The mask cushion and characterized by integrally molded by rotational molding the mask cushion with a powder or thick part and the thin part by pasty plastic material, such as salt Bipurasuchizoru a manufacturing method, rotational molding is quantified injecting powdered or pasty plastic material such as salt Bipurasuchizoru, a rotational molding is a combination of rotation and the rotation of the rotation and revolution two directions rotation (horizontal) direction only mask cushion and a manufacturing method thereof, the thickness of the mask cushion in thick portions 1 to 20 mm, yet thin portion from 0.2 to 0.
8mmであるマスククッション及びその製造方法である。 A mask cushion and a manufacturing method thereof is 8 mm.

【0007】 [0007]

【発明の実施の形態】以下図面により本発明を詳しく説明する。 The present invention will be described in detail by PREFERRED EMBODIMENTS drawings. 図1は本発明の一実施例となる本発明に使用する金型(電鋳型)を示す図で(a)は型合せ状態図、 1 is a diagram in (a) the type combined state diagram illustrating an embodiment become present invention a mold for use in the (electroforming mold) of the present invention,
(b)はポート部金型組立図、(c)はクッション部金型型開き状態図、(d)はマスク本体接合部金型型開き状態図である。 (B) the port unit mold assembly drawing, (c) the cushion die mold open state diagram, (d) is a state diagram open mask body junction die mold.

【0008】本発明において使用される金型は図1に示すような電鋳型であり、大きくマスク本体接合部金型(1)、クッション部金型(2)、ポート部金型(7) [0008] molds used in the present invention is such electroforming mold shown in FIG. 1, large mask body junction mold (1), the cushion unit mold (2), the port unit mold (7)
より構成される。 More composed. マスク本体接合部金型(1)では厚肉部分が作られ、クッション部金型(2)では薄肉部分が作られる。 Mask body junction mold (1) the thick part is made, the cushion section mold (2) in the thin portion is made. マスク本体接合部金型(1)とクッション部金型(2)は電鋳型であり熱伝導性の良い銅のような材料で作製される。 Mask body junction mold (1) and the cushion unit mold (2) is made of a material such as copper good and thermal conductivity in the electroforming mold. また、ポート部金型(7)は図1− The port unit mold (7) Figure 1-
(c)のようにクッション部金型(2)にはめ込まれ、 Fitted into the cushion mold (2) as shown in (c),
クッション成形品の中では空気を注入・排出するための中空のポート部が作られる。 The in the cushion molded article made the port of the hollow for injecting and discharging air. ポート部金型(7)は熱伝導性の良い真鍮のような材料で作製するか、ステンレスのような材料では内部に穴を開け熱の伝わりを良くする必要がある。 Port unit mold (7) is made of a material such as good thermal conductivity brass or, it is necessary to improve the transmitted of heat pierced inside a material such as stainless steel. ポート部金型(7)の形状は先端に刃をもうけ、脱型時ポート部金型(7)を抜きながら、ポート部金型(7)にマスククッション成形品ポート部の中空部分の材料がついて来るようにして抜き取る構造にすると容易にマスククッションのポート部を作製できる。 The shape of the port section mold (7) is father of blade tip, while vent demolding time port unit mold (7), the material of the hollow portion of the mask cushion molded article port unit the port unit mold (7) is easily fabricated port portion of the mask cushion when the structure withdrawing as come with.

【0009】図2に本発明に使用する連続成形装置の設計例を示す。 [0009] shows a design example of a continuous molding apparatus used in the present invention in FIG. 型合わせでは、まず、マスク本体接合部金型(1)を連続成形装置上で移動させるため円盤に固定させる。 The die matching, first, is fixed to the disk for moving the mask body junction mold (1) is on the continuous molding device. 次に、クッション部金型(2)をマスク本体接合部金型(1)の上から型合わせ部(9)、(13)の向きに注意しながら位置合わせ孔(10)を位置合わせピン(12)に挿入しクッション部金型の2カ所の型押えハンドル(3)をマスク本体接合部金型(1)のハンドル固定部(15)にしっかり固定させる。 Next, the cushion section mold (2) die matching section from above of the mask body junction mold (1) (9), alignment pin taking care coordination holes in the direction of (13) (10) ( inserted to secure the mold pressing handle two places cushion die (3) to the handle fixed part of the mask body junction mold (1) (15) 12). 次に円盤を回転させ、クッション部金型(2)のポート部が上を向くようにし、ポート部入口より定量の材料を投入する。 Then rotating the disc, facing up port portion of the cushion unit mold (2) is to introduce the quantification of materials from the port unit inlet.
その後、組立後のポート部金型(図1−(b))をポート部に挿入し、図1−(c)のようにポート部金型の型押えハンドル(8)をクッション部金型(2)のハンドル固定部(11)にしっかり固定させる。 Then, the port unit mold after assembly insert (FIG. 1-(b)) to the port portion, the cushion portion mold for ports mold type holding handle (8) as shown in Figure 1-(c) ( firmly be fixed to the handle fixing section of the 2) (11). ポート部金型装着後、塩ビプラスチゾルの場合、型を加熱炉に入れ円盤を自転および公転二方向に回転させながら、約260 Ports mold after installation, when the salt Bipurasuchizoru, while rotating the disk placed a mold in a heating furnace to rotation and revolution two directions, about 260
℃で2〜3分程度焼く。 Bake about 2 to 3 minutes at ℃. 更に、マスク本体接合部金型(1)が下向きになるように公転を止め、水平方向のみの自転とし約260℃で5分30秒程度焼く。 Further, the mask body junction mold (1) is stopped revolving so that the downward and bake about 5 minutes 30 seconds at about 260 ° C. and rotation in the horizontal direction only.

【0010】まず、自転および公転二方向の回転の際に型の中の塩ビプラスチゾルが型の壁面を流れながら硬化し均一な肉厚の薄肉部を形成する。 Firstly, rotation and revolution bidirectional salts Bipurasuchizoru in the mold during rotation is cured while flowing the wall of the mold to form a thin portion of uniform thickness. 次に、水平方向のみの自転の際に未硬化の塩ビプラスチゾルは、重力によりマスク本体接合部金型に流れ込んで硬化し、厚肉部が形成される。 Next, uncured salt Bipurasuchizoru upon rotation in the horizontal direction only, hardened flows into the mask body junction mold by gravity, the thick portion is formed. その際塩ビプラスチゾルの流動性(粘度)や金型形状によっては均一な加熱状態が維持できるならば重力で流れ込む樹脂が硬化する間自転することなく加熱炉の中で水平状態を維持した状態の静置でも良い。 Static state fluidity (viscosity) and by die shape flowing by gravity if uniform heating state can be maintained resin is maintained in a horizontal state in the furnace without rotation during curing of the Saishio Bipurasuchizoru it may be a location. その後炉から出し水冷後、まず、組立てたポート部金型(図1−(c))を抜き取り、空気を導通させ、次に、クッション部金型(2)を開きクッション部金型(2)に付いてきたクッション成形品を脱型する。 After water cooling out of the subsequent reactor is first withdrawn assembly port unit mold (FIG. 1-(c)), to conduct the air, then, the cushion unit mold to open the cushion mold (2) (2) a cushion molded article has been attached to the removal from the mold. 本実施例中水平方向のみの自転の工程は金型の加熱を均一にするために金型の回転を行ったものである。 Step of rotation of the embodiment in only the horizontal direction is obtained by performing the rotation of the mold in order to equalize the heating of the mold. 加熱炉の性能や方式(電熱、ガス燃焼、高周波)により加熱状態が異なることは本発明を制約するものではない。 Performance and method of the heating furnace (electric, gas-fired, high frequency) not heated state is to constrain different from the present invention by.

【0011】この成形方法を実施することのより、スラッシュ成形等に比べ、塩ビプラスチゾル等の粉末或いはペースト状のプラスチック材料の再利用の必要なく必要最小量の材料の定量注入により無駄なく成形ができ一連の工程の中で、自公転2方向の回転で薄肉部が、自転のみの時厚肉部が形成でき、型開閉少なく、作業工数減少、異物混入減少が図れる。 [0011] More in performing this molding method, compared to slush molding, can without waste molded by quantitative injection of the material without the need minimum necessary amount of re-use of powder or pasty plastic material, such as salt Bipurasuchizoru in a series of steps, the thin portion by the rotation of the revolving two directions, only the thick portion can be formed when the rotation, mold opening and closing small, man-hours decreases, contamination reduction can be achieved. マスククッションの肉厚は厚肉部はマスク本体を接着固定するためマスク本体側より押しつけたとき破れたり変形したりしない強度が必要であり、また、接着作業し易い保形性が必要であるため1〜20mm程度がよく、1mmより薄いと破れる恐れがあり、20mmより厚いとマスクが大きくなり、使用上保持がしにくくなる。 Because the thickness of the mask cushion thick portion is required deformed or not the intensity or torn when pushed from the mask body for adhesively securing the mask body, also, it is necessary to easily shape retention and adhesion work good about 1~20mm, may break and thinner than 1mm, mask becomes larger and thicker than 20mm, less likely to be used on the holding. 薄肉部は顔面と密に接触し、気密性が保てる程度に柔軟性を有する必要があり、0.2 Thin portion in contact with the face and closely, it is necessary to have a flexibility to such an extent capable of maintaining air tightness, 0.2
〜0.8mm程度が良く、0.2mmより薄いと破裂強度が低く破裂しやすくなり0.8mmより厚いと顔面の形状に合わせて密に接触できなくなり気密性が悪くなる。 About ~0.8mm well, is deteriorated becomes airtight can not be in intimate contact in conjunction with thicker thinner rupture strength tends to rupture lower 0.8mm from 0.2mm to the shape of the face.

【0012】使用する粉体或いはペースト状のプラスチック材料は塩ビプラスチゾルやオレフィン系、シリコーンゴム系の材料等があり、特に限定されるものではないが、厚肉部と薄肉部の焼け具合が同程度であるために、 [0012] powder or pasty plastic material used is salt Bipurasuchizoru and olefin, there are materials of the silicone rubber, but are not particularly limited, the thick portion and the burning condition is comparable thin portion for it is,
熱安定性が良く 均一なクッション膜を得るために流動性があり 用途上、顔面に接触するため安全性に優れ、 Applications on there fluidity for thermal stability obtain good uniform cushion film, excellent safety for contacting the face,
刺激臭でなく、十分な柔軟性を持つことが必要である。 Instead of the pungent odor, it is necessary to have sufficient flexibility.
塩ビプラスチゾルの場合、例えば次のような配合で作製することができる。 If salts Bipurasuchizoru, can be produced, for example following formulation. PVCペーストレジン:100部(重合度1600) 可塑剤(DOP) : 80部 可塑剤(DNP) : 50部 安定剤(Ca/Zn系) : 2部 PVC paste resin: 100 parts (polymerization degree 1600) a plasticizer (DOP): 80 parts plasticizer (DNP): 50 parts stabilizer (Ca / Zn-based): 2 parts

【0013】 [0013]

【発明の効果】本発明の方法に従うことにより、従来作製するのに手間のかかった塩ビプラスチゾル等の粉末或いはペースト状のプラスチック材料による厚肉、均一な薄肉部分を持つマスククッションを、一定最小量の材料で一体で成形することができ、余分な材料は不要で、あらかじめ厚肉成形品を作っておいたり、後加工で貼り合わせをする手間がなくなり、工業的なマスククッション及びその製造方法として好適である。 By following the method of the present invention, powder or thick due pasty plastic material salt Bipurasuchizoru such took troublesome to conventional manufacturing, the mask cushion having a uniform thin portion, a certain minimum amount material can be molded in one piece of extra material is not necessary, there is no time to be or had been made in advance thick-walled molded products, the bonding in post-processing, as an industrial mask cushion and a method of manufacturing the same it is preferred.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明に使用する金型(電鋳型)の一実施例 (a)型合せ状態図 (b)ポート部金型組立図 (c)クッション部金型型開き状態図 (d)マスク本体接合部金型型開き状態図 [1] One embodiment (a) type combined state diagram (b) ports mold assembly diagram (c) cushion die mold open state view of a mold for use in the present invention (electroforming mold) (d) mask state diagram open body junction die mold

【図2】本発明に使用する連続成形装置の設計例 Design example of a continuous molding apparatus used in the present invention; FIG

【符号の説明】 DESCRIPTION OF SYMBOLS

1. 1. マスク本体接合部金型 2. Mask body junction die 2. クッション部金型 3.8. Cushion portion mold 3.8. 型押えハンドル 4. Kataosae handle 4. 止めピン 5.6. Locking pin 5.6. バネ 7. Spring 7. ポート部金型 9.13. Port part mold 9.13. 型合わせ部 10. Type matching unit 10. 位置合わせ孔 11. Alignment holes 11. ハンドル固定部 12. Handle fixing portion 12. 位置合わせピン 14. Alignment pin 14. マスク本体接合部 15.ハンドル固定部 Mask body joints 15. The handle fixing section

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 粉末或いはペースト状のプラスチック材料により、厚肉部分と均一な薄肉部分を回転成形により一体成形することを特徴とするマスククッション及びその製造方法。 By 1. A powder or pasty plastic material, mask cushion and a manufacturing method thereof, characterized in that integrally molded by rotational molding a thick part and a uniform thin portion.
  2. 【請求項2】 回転成形が粉末或いはペースト状のプラスチック材料を定量注入し、自転及び公転二方向の回転と自転(水平)方向のみの回転を組み合わせた回転成形である請求項1記載のマスククッション及びその製造方法。 Wherein the rotational molding powder or pasty plastic material metering injection, rotation and revolution dual rotary direction and rotation (horizontal) mask cushion as claimed in claim 1, wherein a rotational molding that combines rotational direction only and a method of manufacturing the same.
  3. 【請求項3】 マスククッションの肉厚が、厚肉部で1 Wherein the thickness of the mask cushion, in the thick part 1
    〜20mm、更に薄肉部で0.2〜0.8mmである請求項1又は2記載のマスククッション及びその製造方法。 To 20 mm, further mask cushion and a manufacturing method thereof according to claim 1 or 2 wherein the 0.2~0.8mm thin-walled portion.
JP2660796A 1996-02-14 1996-02-14 Mask cushion and its manufacture Pending JPH09216240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2660796A JPH09216240A (en) 1996-02-14 1996-02-14 Mask cushion and its manufacture

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Application Number Priority Date Filing Date Title
JP2660796A JPH09216240A (en) 1996-02-14 1996-02-14 Mask cushion and its manufacture

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JPH09216240A true JPH09216240A (en) 1997-08-19

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US8944061B2 (en) 2005-10-14 2015-02-03 Resmed Limited Cushion to frame assembly mechanism
US8960196B2 (en) 2007-01-30 2015-02-24 Resmed Limited Mask system with interchangeable headgear connectors
US8997739B2 (en) 1996-10-16 2015-04-07 Resmed Limited Vent valve apparatus
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US9132255B2 (en) 2007-11-15 2015-09-15 Resmed Limited Cushioning structure
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US9757534B2 (en) 2001-10-22 2017-09-12 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US9144656B2 (en) 2001-10-22 2015-09-29 Resmed R&D Germany Gmbh Breathing mask arrangement as well as an application device and a forehead support device for same
US10245403B2 (en) 2001-10-22 2019-04-02 RedMed R&D Germany GmbH Breathing mask arrangement as well as an application device and a forehead support device for same
US9259549B2 (en) 2002-01-17 2016-02-16 Resmed R&D Germany Gmbh Breathing mask arrangement and a forehead support device for same
US9248251B2 (en) 2003-04-10 2016-02-02 Resmed Limited Mask with integral cushion and forehead piece
US9895503B2 (en) 2003-05-02 2018-02-20 Resmed Limited Mask system
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