CN1092530C - 具有加固件的过滤面罩 - Google Patents
具有加固件的过滤面罩 Download PDFInfo
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- CN1092530C CN1092530C CN96193976A CN96193976A CN1092530C CN 1092530 C CN1092530 C CN 1092530C CN 96193976 A CN96193976 A CN 96193976A CN 96193976 A CN96193976 A CN 96193976A CN 1092530 C CN1092530 C CN 1092530C
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- 230000001815 facial effect Effects 0.000 claims description 25
- 239000004568 cement Substances 0.000 claims description 15
- 229920001971 elastomer Polymers 0.000 claims description 15
- 229920001169 thermoplastic Polymers 0.000 claims description 13
- 239000004416 thermosoftening plastic Substances 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 210000002969 egg yolk Anatomy 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- RLLPVAHGXHCWKJ-UHFFFAOYSA-N permethrin Chemical compound CC1(C)C(C=C(Cl)Cl)C1C(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 RLLPVAHGXHCWKJ-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
- A62B18/025—Halfmasks
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
本发明提供一种具有一硬度很低、很柔顺的面部构件(10)的过滤面罩(见图1),该面部构件具有几个汇集其中的加固件(20、30和40)。该过滤面罩最好包括一呼吸阀和一对过滤筒。它还具有一与面部构件(10)配套并连接为确保过滤面罩戴在戴用者面部的吊带(70)的中心件(62)。由于该新颖的面部构件(10)是由完全被一种可弯曲的橡胶(50)包围并胶合的三个加固件(20、30和40)组成的,所以该过滤面罩轻盈且很舒适。
Description
发明的技术领域
本发明涉及戴在戴用者面部为预防气体、蒸汽和微粒的过滤面罩,尤其涉及一种半罩着的过滤面罩。
发明的背景技术
大多数的过滤面罩具有一由一种低硬度、柔顺(compliant)的材料--较典型的为橡胶所制成的面部构件,该面部构件靠在戴用者的面部并与戴用者表面肌肤连在一起形成密封。有些过滤面罩由较厚的橡胶制成,用来支撑连接其上的过滤件和呼吸阀。例如,美国专利第2,652,828号(Matheson)和第4,155,358号(McAllister等人)。厚橡胶会使过滤面罩在戴用时变重而且不舒适。另外,橡胶越厚,则由于材料消耗的增加,过滤面罩的制造成本也同时增加。倘若橡胶薄一些,则该面罩可能会塌在戴用者的面部,尤其是在戴上过滤面罩后收紧吊带时。美国专利第5,062,421号(Burns)描述了装有作为支撑面部构件的结构件的大的单个衬垫的一种过滤面罩。这种Burns过滤面罩的不足之处在于,其挠曲柔性不足,无法舒适地适应多种脸型尺寸。
因此,需要提供一种更适用和轻质的过滤面罩,该过滤面罩具有一坚固但可弯曲的面部构件,并比现有的过滤面罩更通用,更经济。同样,该过滤面罩应能长时间舒适地戴用而不会塌在戴用者的面部。
发明概述
为此,本发明提供了一种具有一其上可拆卸地连接有过滤筒的面部构件的过滤面罩,其改进之处在于,面部构件包括由可弯曲的橡胶连接在一起的多个加固件,可弯曲的橡胶完全包围着各加固件,以使各加固件由可弯曲的橡胶互相隔离,但可互相之间相对移动,并且每一个过滤筒连接在一个加固件上。
通常,本发明提供的是具有一低硬度、柔顺并有着几个汇集其中的加固件的面部构件的非常舒适轻盈的过滤面罩。最好具有三个含有孔和用于将过滤筒和呼吸阀连接至面部构件的机械装置的加固件。所有的加固件是由轻质坚硬的材料制成,最好是热熔塑胶(thermoplastic rubber),以便面部构件可足够地弯曲来提供戴用者面部舒适的密封,但需足够的硬度来防止它塌在戴用者的面部。该过滤面罩还包括一以位于中间的呼吸阀盖为特点的中心件(yolk)。该中心件包裹着面部构件并具有与加固件上的孔相对应的孔。该过滤筒最好连接至位于适当的加固件上的连接件上。一条吊带与中心件相连,用以定位并确保过滤面罩戴在戴用者的面部。该吊带可通过位于每条中心件臂上的孔来与中心件相连。
以下将对本发明作一说明,本发明其它细节和长处将会一目了然。
附图简介
在附图中,揭示了本发明的较佳实施例和实施本发明的较佳方法:
图1是本发明过滤面罩的立体图;以及
图2是本发明面部构件的分解图。
较佳实施例的说明
图1和图2所示为本发明目前的一个实施例。过滤面罩的面部构件10最好包括三个加固件20、30和40,它们分别由轻质材料,最好是可塑塑料,更可取的是聚丙烯或是充满聚丙烯的玻璃制成,它们被一其中含有诸如克拉顿(Shell公司,丁苯嵌段聚合物)、斯塔弗莱克斯(starflex)或圣诺扑锐恩(sanoprene)的聚丙烯的热熔塑胶50固定在一起。两个加固件20和30包含了面部构件的侧面,它们相互对称,并基本上形成通常具有圆孔21和31的泪珠状的形状,该两圆孔分别位于泪珠的基面上。该加固件沿它们的外缘与橡胶物胶合以确保密封。而且,该加固件可稍稍弯曲以更好地适应表面特点。在侧面的加固件20和30上的圆孔21和31具有足够的大小来容纳工业上有效的过滤筒,并紧靠一为将该过滤器连接至加固件的连接件。在一个实施例中,侧面的加固件具有用来与该过滤筒的凸缘相配合的凸缘22、23和24。
中间的加固件40大致呈最好具有比另一端42稍窄些的一端41的矩形,且具有一孔43,该孔基本上处于矩形边44和45的中央,并更接近于矩形稍长的一端。中间加固件上的孔43最好呈圆形,并具有足够的大小用于在其中容纳呼吸阀。
面部构件的可弯曲的橡胶50最好是其中含有聚丙烯的热熔塑胶。它最好是由使用一与面部构件所需形状相一致的模腔的注模制成的,并适合于将加固件20、30和40容纳安装在面部构件中、它们最终所要的位置上。中间加固件40位于注模中,具有在其矩形顶端上的窄端41,并位于呈泪珠状的侧面加固件20和30的位置中间,以便在注模后,该侧面加固件可相对于中间加固件以铰链式移动。当热熔塑胶注入注模中时,热熔塑胶直接与各加固件胶合以在其周围形成密封。各加固件最好是以机械的方式与塑胶胶合,以使它能够相对于邻近的加固件移动,并由此提供所需的弯曲性能。注模的外形以及其中加固件的位置,允许热熔塑胶完全包围各加固件的每条边,包括孔的周边,以使加固件由热熔塑胶带相互隔离,而且侧面加固件上的各孔被热熔塑胶包围,以便与过滤筒形成一摩擦配合。另外,也可使用其它可与轻质的加固件形成化学胶合的可弯曲的橡胶。当然,将不得不伴随着这些材料使用一底层涂料(primer),用来在塑胶和加固件之间获得一种化学胶合。
中心件60通常安置在面部构件10的顶端。该中心件由半刚性的材料--最好是塑料制成。当安装过滤面罩的时候,该中心件位于中央并延伸着穿过面部构件的外表面。中心件的中央是一与面部构件上的呼吸阀孔43相配的呼吸阀罩61。该中心件具有从呼吸阀罩61的对边延伸的两部分62。中心件的每一半62具有一大致为圆形的孔(未显示)以与相应的、面部构件10上大致呈圆形的过滤筒开孔21和31相配合。
从中心件60的每一半62延伸两个叉67和68,在各叉的末端具有用来接受吊带70的开口64和65,吊带70将固定并将面部构件10和中心件60紧扣在戴用者的头部。
吊带70最好由三条与中心件60相连的可调节的弹性带71、72和73组成。吊带的上部弹性带71和72与形成一套在戴用者头部的凸出部位上的头带74的两塑料条相连。可调节的下部弹性带73套在戴用者的颈部,并穿过中心件上的孔65。戴用者可通过收紧或者放松弹性带来调节过滤面罩的配合度。在戴上过滤面罩的同时可进行该调节措施。
以上为达到说明的目的已详细描述了本发明,但是应该理解到,该描述只是为了说明的目的,本技术领域中的普通技术人员还可以在不脱离包括其所有等效变化在内的、下述权利要求中所限定的本发明的精神和范围内,作出各种变型修改。
Claims (14)
1.一种具有一其上可拆卸地连接有过滤筒的面部构件的过滤面罩,其改进之处的特征在于,所述面部构件包括由可弯曲的橡胶连接在一起的多个加固件,所述可弯曲的橡胶完全包围着各加固件,以使各加固件由所述可弯曲的橡胶互相隔离,但可互相之间相对移动,并且每一个过滤筒连接在一个加固件上。
2.如权利要求1所述的过滤面罩,其特征在于,所述可弯曲的橡胶机械胶合在所述各加固件上。
3.如权利要求2所述的过滤面罩,其特征在于,所述过滤面罩具有三个加固件。
4.如权利要求3所述的过滤面罩,其特征在于,所述三个加固件包括两个侧面加固件,每个加固件具有一孔和用于容纳一过滤筒的连接件;以及一个具有一用于容纳一呼吸阀的孔的中间加固件。
5.如权利要求4所述的过滤面罩,其特征在于,所述连接件包括多个为与过滤筒上的多个凸缘配合以进行卡口式安装的凸缘。
6.如权利要求3所述的过滤面罩,其特征在于,所述加固件由塑料制成。
7.如权利要求6所述的过滤面罩,其特征在于,所述塑料是聚丙烯。
8.如权利要求3所述的过滤面罩,其特征在于,所述可弯曲的橡胶是热熔塑胶。
9.如权利要求7所述的过滤面罩,其特征在于,所述可弯曲的橡胶是含有聚丙烯的热熔塑胶。
10.如权利要求1所述的过滤面罩,其特征在于,所述多个加固件包含有聚丙烯,并且由可弯曲的热熔塑胶连接在一起。
11.如权利要求10所述的过滤面罩,其特征在于,所述可弯曲的热熔塑胶是机械胶合并完全包围各加固件,以使各加固件由所述热熔塑胶互相隔离,但可互相之间相对移动。
12.如权利要求11所述的过滤面罩,其特征在于,所述过滤面罩具有三个加固件。
13.如权利要求11所述的过滤面罩,其特征在于,所述三个加固件包括两个侧面加固件,每个加固件具有一孔和用于容纳一过滤筒的连接件;以及一个具有一用于容纳一呼吸阀的孔的中间加固件。
14.如权利要求13所述的过滤面罩,其特征在于,所述连接件包括至少一个凸缘。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/485,172 | 1995-06-07 | ||
US08/485,172 US5592937A (en) | 1995-06-07 | 1995-06-07 | Respirator mask with stiffening elements |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1184434A CN1184434A (zh) | 1998-06-10 |
CN1092530C true CN1092530C (zh) | 2002-10-16 |
Family
ID=23927168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN96193976A Expired - Fee Related CN1092530C (zh) | 1995-06-07 | 1996-05-09 | 具有加固件的过滤面罩 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5592937A (zh) |
EP (1) | EP0830180B1 (zh) |
JP (1) | JP4195085B2 (zh) |
CN (1) | CN1092530C (zh) |
AU (1) | AU5738196A (zh) |
DE (1) | DE69619980T2 (zh) |
WO (1) | WO1996040370A1 (zh) |
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US8839785B2 (en) * | 2010-03-10 | 2014-09-23 | 3M Innovative Properties Company | Respirator harness having collapsible head cradle |
EP3406287B1 (en) | 2010-10-08 | 2022-04-27 | Fisher & Paykel Healthcare Limited | Respiratory mask assembly for breathing assistance apparatus |
US20120125342A1 (en) * | 2010-11-19 | 2012-05-24 | 3M Innovative Properties Company | Filtering face-piece respirator having support structure injection molded to filtering structure |
DE112012007303B4 (de) | 2011-04-15 | 2024-04-25 | Fisher & Paykel Healthcare Ltd. | Interface mit einem beweglichen Nasenrückenteil |
US20120260920A1 (en) * | 2011-04-15 | 2012-10-18 | 3M Innovative Properties Company | Face mask having welded thermoplastic mask body |
US10603456B2 (en) | 2011-04-15 | 2020-03-31 | Fisher & Paykel Healthcare Limited | Interface comprising a nasal sealing portion |
USD720846S1 (en) | 2011-05-12 | 2015-01-06 | Intersurgical Ag | Breathing mask |
GB2558799B8 (en) | 2012-08-08 | 2019-04-10 | Fisher & Paykel Healthcare Ltd | Headgear for patient interface |
US9950130B2 (en) | 2012-09-04 | 2018-04-24 | Fisher & Paykel Healthcare Limited | Valsalva mask |
USD746439S1 (en) | 2013-12-30 | 2015-12-29 | Kimberly-Clark Worldwide, Inc. | Combination valve and buckle set for disposable respirators |
DE112014006348B4 (de) * | 2014-02-10 | 2021-01-21 | Dräger Safety AG & Co. KGaA | Atemschutz-Halbmaske |
USD759807S1 (en) * | 2014-05-22 | 2016-06-21 | 3M Innovative Properties Company | Respirator mask exhalation port |
GB2593405B (en) | 2014-08-25 | 2022-05-11 | Fisher & Paykel Healthcare Ltd | Respiratory mask and related portions, components or sub-assemblies |
USD767116S1 (en) * | 2015-02-27 | 2016-09-20 | 3M Innovative Properties Company | Respirator mask having an exhalation port |
USD823455S1 (en) | 2017-02-23 | 2018-07-17 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD823454S1 (en) | 2017-02-23 | 2018-07-17 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
USD824020S1 (en) | 2017-02-23 | 2018-07-24 | Fisher & Paykel Healthcare Limited | Cushion assembly for breathing mask assembly |
CN108339206A (zh) * | 2018-01-29 | 2018-07-31 | 山东星火科学技术研究院 | 一种化学实验防毒面罩的新型固定装置 |
USD1006216S1 (en) * | 2020-05-08 | 2023-11-28 | Lorin Kaywood | Respirator face mask |
USD995755S1 (en) * | 2020-05-08 | 2023-08-15 | Lorin Kaywood | Respirator face mask |
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US5062421A (en) * | 1987-11-16 | 1991-11-05 | Minnesota Mining And Manufacturing Company | Respiratory mask having a soft, compliant facepiece and a thin, rigid insert and method of making |
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GB2275614A (en) * | 1993-03-03 | 1994-09-07 | Michael Beard | Seal for respiratory mask |
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1995
- 1995-06-07 US US08/485,172 patent/US5592937A/en not_active Expired - Lifetime
-
1996
- 1996-05-09 CN CN96193976A patent/CN1092530C/zh not_active Expired - Fee Related
- 1996-05-09 AU AU57381/96A patent/AU5738196A/en not_active Abandoned
- 1996-05-09 WO PCT/US1996/006619 patent/WO1996040370A1/en active IP Right Grant
- 1996-05-09 EP EP96915657A patent/EP0830180B1/en not_active Expired - Lifetime
- 1996-05-09 JP JP50053997A patent/JP4195085B2/ja not_active Expired - Fee Related
- 1996-05-09 DE DE69619980T patent/DE69619980T2/de not_active Expired - Lifetime
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US4790306A (en) * | 1987-09-25 | 1988-12-13 | Minnesota Mining And Manufacturing Company | Respiratory mask having a rigid or semi-rigid, insert-molded filtration element and method of making |
US5062421A (en) * | 1987-11-16 | 1991-11-05 | Minnesota Mining And Manufacturing Company | Respiratory mask having a soft, compliant facepiece and a thin, rigid insert and method of making |
Also Published As
Publication number | Publication date |
---|---|
JPH11506621A (ja) | 1999-06-15 |
DE69619980T2 (de) | 2002-12-19 |
WO1996040370A1 (en) | 1996-12-19 |
DE69619980D1 (de) | 2002-04-25 |
JP4195085B2 (ja) | 2008-12-10 |
EP0830180B1 (en) | 2002-03-20 |
US5592937A (en) | 1997-01-14 |
AU5738196A (en) | 1996-12-30 |
EP0830180A1 (en) | 1998-03-25 |
CN1184434A (zh) | 1998-06-10 |
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