JP2015226596A

JP2015226596A - Mask device for feeding gases

Info

Publication number: JP2015226596A
Application number: JP2014112844A
Authority: JP
Inventors: 松原　一雄; Kazuo Matsubara; 一雄松原; 松原　照巳; Terumi Matsubara; 照巳松原; 小林　健治; Kenji Kobayashi; 健治小林; 心一小林; Shinichi Kobayashi
Original assignee: Atom Medical Corp
Current assignee: Atom Medical Corp
Priority date: 2014-05-30
Filing date: 2014-05-30
Publication date: 2015-12-17
Anticipated expiration: 2034-05-30
Also published as: JP6271342B2

Abstract

PROBLEM TO BE SOLVED: To provide a mask device 1 for feeding gases in which a mask body 6 can be worn relatively easily and relatively surely to a mask wearer 2 by hooking a band for head wearing such as a stretchable bandage to a head 26 of the mask wearer 2 relatively easily and relatively surely even when there are not strings 14, 21 for head wearing such as a rubber string.SOLUTION: Each of short holes 15 to 18 for string fitting and long holes 22, 23 for band fitting are arranged at an end part 11a on a left side and an end part 11b on a right side of an outer peripheral part 11 of a mask body 6 respectively.

Description

本発明は、マスク装着者の頭部に装着されることができるマスク本体を備え、上記頭部に装着されている上記マスク本体と上記マスク装着者の顔面との間に存在するガス類導入空間にガス類を導入することができるように構成されている、酸素マスク装置などのガス類供給用マスク装置に関するものである。 The present invention includes a mask main body that can be mounted on the head of a mask wearer, and a gas introduction space that exists between the mask main body mounted on the head and the face of the mask wearer. The present invention relates to a gas supply mask device such as an oxygen mask device configured to be able to introduce gas into the gas.

上述のように構成された酸素マスク装置は、特許文献１に開示されている。そして、この特許文献１に開示されている酸素マスク装置においては、複数個のゴム紐取付け用丸孔が、マスク本体の外周部分のうちの左側の端部と右側の端部とのそれぞれに配設されている。このために、マスク装着者などは、ゴム紐の両端部のそれぞれをマスク本体の外周部分のうちの左側端部のゴム紐取付け用丸孔と右側端部のゴム紐取付け用丸孔とにそれぞれ取付けることができる。したがって、上記ゴム紐をマスク装着者の頭部に掛け渡すことによって、酸素マスク装置をマスク装着者に装着することができる。 An oxygen mask device configured as described above is disclosed in Patent Document 1. In the oxygen mask device disclosed in Patent Document 1, a plurality of round holes for attaching a rubber string are respectively arranged on the left end and the right end of the outer peripheral portion of the mask body. It is installed. For this reason, the mask wearer or the like attaches both ends of the rubber strap to the rubber cord attaching round hole at the left end of the outer peripheral portion of the mask body and the rubber cord attaching round hole at the right end, respectively. Can be installed. Therefore, the oxygen mask device can be attached to the mask wearer by hanging the rubber string over the head of the mask wearer.

特開２００５−２５３９２５号公報JP 2005-253925 A

しかし、特許文献１に開示されている酸素マスク装置の場合には、マスク装着者などの手元にゴム紐がない場合には、ゴム紐を何らかの方法でもって入手する必要がある。そして、ゴム紐を入手するのに手間や時間が掛かるときには、マスク装着者が酸素マスク装置を使用し始めるのに余分な手間や余分な時間が掛かってしまう。 However, in the case of the oxygen mask device disclosed in Patent Document 1, if there is no rubber string at hand of a mask wearer or the like, it is necessary to obtain the rubber string by some method. When it takes time and effort to obtain the rubber strap, it takes extra time and time for the mask wearer to start using the oxygen mask device.

本発明は、特許文献１に開示されている酸素マスク装置における上述のような欠点を、比較的簡単な構成でもって、効果的に是正し得るようにしたものである。 According to the present invention, the above-described drawbacks in the oxygen mask apparatus disclosed in Patent Document 1 can be effectively corrected with a relatively simple configuration.

本発明は、マスク装着者の頭部に装着されることができるマスク本体を備え、上記頭部に装着されている上記マスク本体と上記マスク装着者の顔面との間に存在するガス類導入空間にガス類を導入することができるように構成されているガス類供給用マスク装置において、紐取付け用短孔と帯取付け用長孔とのそれぞれが、上記マスク本体の外周部分のうちの左側の端部と右側の端部とのそれぞれに配設されていることを特徴とするガス類供給用マスク装置に係るものである。そして、本発明の第１の観点によれば、上記外周部分のうちの上記左側端部と上記右側端部とのそれぞれがほぼ平らな面に構成されているのが好ましい。 The present invention includes a mask main body that can be mounted on the head of a mask wearer, and a gas introduction space that exists between the mask main body mounted on the head and the face of the mask wearer. In the gas supply mask device configured to be able to introduce gases into the string attachment short hole and the band attachment long hole, the left side of the outer peripheral portion of the mask main body is The present invention relates to a gas supply mask device, which is disposed at each of an end portion and a right end portion. And according to the 1st viewpoint of this invention, it is preferable that each of the said left end part and the said right end part of the said outer peripheral part is comprised by the substantially flat surface.

また、本発明の第２の観点によれば、左側の孔形成用突出部と右側の孔形成用突出部とのそれぞれが、上記外周部分のうちの上記左側端部と上記右側端部とのそれぞれのほぼ中間部分にほぼ左右両外側に向って突出するように配設され、上記紐取付け用短孔と上記帯取付け用長孔とのうちのいずれか一方が、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれに配設され、上記紐取付け用短孔と上記帯取付け用長孔とのうちの他方が、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれに隣接するように、上記外周部分のうちの上記左側端部と上記右側端部とにそれぞれ配設されているのが好ましい。そして、本発明の第２の観点の第１の態様によれば、上記紐取付け用短孔が、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれに配設され、上記帯取付け用長孔が、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれに隣接するように、上記外周部分のうちの上記左側端部と上記右側端部とにそれぞれ配設されているのが好ましい。また、本発明の上記第２の観点の第２の態様によれば、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれが、上記左側端部と上記右側端部とのそれぞれにほぼ面一になるように一体成形されているのが好ましい。 Further, according to the second aspect of the present invention, each of the left hole forming protrusion and the right hole forming protrusion is formed between the left end and the right end of the outer peripheral portion. Each of the short hole for attaching the strap and the long hole for attaching the band is disposed on the substantially intermediate portion of the left and right sides, and the left hole forming protrusion. And the right hole forming protrusion, and the other of the string attaching short hole and the band attaching long hole is the left hole forming protrusion and the right hole forming protrusion. It is preferable that they are respectively disposed on the left end portion and the right end portion of the outer peripheral portion so as to be adjacent to each other. According to the first aspect of the second aspect of the present invention, the string attaching short hole is disposed in each of the left hole forming protrusion and the right hole forming protrusion, The band attachment elongated holes are respectively arranged on the left end and the right end of the outer peripheral portion so that the left hole forming protrusion and the right hole forming protrusion are adjacent to each other. It is preferable to be provided. According to the second aspect of the second aspect of the present invention, each of the left hole forming protrusion and the right hole forming protrusion is formed of the left end and the right end. It is preferable that they are integrally formed so as to be substantially flush with each other.

また、本発明の上記第２の観点の第３の態様によれば、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれが、ほぼ台形状、ほぼ長方形状、ほぼ半円形状、ほぼ半楕円形状またはほぼ半長円形状に構成されているのが好ましい。この場合、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれが、ほぼ左右両外側に向って先細りになるように突出しているほぼ等脚台形状に構成されているのがさらに好ましい。そして、この場合、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれの基底の長さが、１０．５〜１７．５ｍｍの範囲（さらに好ましくは、１１．２〜１６．８ｍｍの範囲、最も好ましくは、１１．７〜１６．３ｍｍの範囲）であり、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれの突出高さが、４．５〜７．５ｍｍの範囲（さらに好ましくは、４．８〜７．２ｍｍの範囲、最も好ましくは、５．０〜７．０ｍｍの範囲）であり、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれの面積が、４５〜７５ｍｍ^２の範囲（さらに好ましくは、４８〜７２ｍｍ^２の範囲、最も好ましくは、５０〜７０ｍｍ^２の範囲）であるのが好ましい。さらに、本発明の上記第２の観点の第４の態様によれば、上記マスク本体の上下方向における長さに対する、上記マスク本体の上端から左右一対の孔形成用突出部のそれぞれのほぼ中心までの上下方向における長さの比が、０．３８〜０．４８の範囲（さらに好ましくは、０．３９〜０．４７の範囲、最も好ましくは、０．４０〜０．４６の範囲）であるのが好ましい。 According to the third aspect of the second aspect of the present invention, each of the left hole forming protrusion and the right hole forming protrusion is substantially trapezoidal, substantially rectangular, and substantially semicircular. It is preferable that the shape is substantially semi-elliptical or semi-elliptical. In this case, each of the left-side hole forming protrusion and the right-side hole forming protrusion is configured in a substantially isosceles trapezoidal shape that protrudes so as to taper toward the left and right outer sides. Further preferred. In this case, the base lengths of the left hole forming protrusion and the right hole forming protrusion are in the range of 10.5 to 17.5 mm (more preferably 11.2 to 16. 8 mm, most preferably 11.7 to 16.3 mm), and the protrusion heights of the left hole forming protrusion and the right hole forming protrusion are 4.5 to 7 respectively. 0.5 mm (more preferably in the range of 4.8 to 7.2 mm, most preferably in the range of 5.0 to 7.0 mm), and the left hole forming protrusion and the right hole forming protrusion. It is preferable that the area of each part is in the range of 45 to 75 mm ² (more preferably in the range of 48 to 72 mm ² , most preferably in the range of 50 to 70 mm ² ). Furthermore, according to the 4th aspect of the said 2nd viewpoint of this invention from the upper end of the said mask main body with respect to the length in the up-down direction of the said mask main body from the approximate center of each of a left-right pair of hole formation protrusion part The length ratio in the vertical direction is in the range of 0.38 to 0.48 (more preferably in the range of 0.39 to 0.47, most preferably in the range of 0.40 to 0.46). Is preferred.

また、本発明の第３の観点によれば、上記紐取付け用短孔のそれぞれの平面的に見た最大長さが、１．５〜２．５ｍｍの範囲（さらに好ましくは、１．６〜２．４ｍｍの範囲、最も好ましくは、１．７〜２．３ｍｍの範囲）であり、上記紐取付け用短孔のそれぞれの平面的に見た面積が、２．３５〜３．９５ｍｍ^２の範囲（さらに好ましくは、２．５０〜３．８０ｍｍ^２の範囲、最も好ましくは、２．６２〜３．６６ｍｍ^２の範囲）であるのが好ましい。そして、本発明の第４の観点によれば、上記帯取付け用長孔のそれぞれの平面的に見た幅が、０．７５〜１．２５ｍｍの範囲（さらに好ましくは、０．８０〜１．２０ｍｍの範囲、最も好ましくは、０．８２〜１．１８ｍｍの範囲）であり、上記帯取付け用長孔のそれぞれの平面的に見た最大長さが、７．５〜１２．５ｍｍの範囲（さらに好ましくは、８．０〜１２．０ｍｍの範囲、最も好ましくは、８．２〜１１．８ｍｍの範囲）であり、上記帯取付け用長孔のそれぞれの平面的に見た面積が、６．８〜１１．４ｍｍ^２の範囲（さらに好ましくは、７．２〜１０．８ｍｍ^２の範囲、最も好ましくは、７．５〜１０．５ｍｍ^２の範囲）であるのが好ましい。 According to the third aspect of the present invention, the maximum length of each of the string attachment short holes when viewed in plan is in the range of 1.5 to 2.5 mm (more preferably, 1.6 to Range of 2.4 mm, most preferably 1.7 to 2.3 mm), and the area of each of the string attachment short holes when viewed in plan is 2.35 to 3.95 mm ² . (More preferably, it is in the range of 2.50 to 3.80 mm ² , most preferably in the range of 2.62 to 3.66 mm ² ). And according to the 4th viewpoint of this invention, the width | variety seen in each plane of the said long hole for band attachment is the range (more preferably 0.80-1. 20 mm, most preferably 0.82 to 1.18 mm), and the maximum length of each of the long holes for band attachment in a plan view is in the range of 7.5 to 12.5 mm ( More preferably, it is in the range of 8.0 to 12.0 mm, and most preferably in the range of 8.2 to 11.8 mm. It is preferably in the range of 8 to 11.4 mm ² (more preferably in the range of 7.2 to 10.8 mm ² , most preferably in the range of 7.5 to 10.5 mm ² ).

請求項１に係る発明によれば、紐取付け用短孔と帯取付け用長孔とのそれぞれが、マスク本体の外周部分のうちの左側の端部と右側の端部とのそれぞれに配設されている。このために、ゴム紐などの頭部装着用紐がマスク装着者などの手元にあるときには、頭部装着用紐をマスク装着者の頭部などに比較的簡単にかつ比較的確実に掛けることなどによって、マスク本体をマスク装着者に比較的簡単にかつ比較的確実に装着することができる。そして、ゴム紐などの頭部装着用紐がマスク装着者などの手元にないときには、伸縮包帯などの頭部装着用帯をマスク装着者の頭部などに比較的簡単にかつ比較的確実に掛けることなどによって、マスク本体をマスク装着者に比較的簡単にかつ比較的容易に装着することができる。なお、この点は、ゴム紐などの頭部装着用紐がマスク装着者などの手元にあるときも、同様である。そして、請求項２に係る発明によれば、ゴム紐などの頭部装着用弾性紐や伸縮包帯などの頭部装着用弾性帯をマスク本体の外周部分のうちの左側端部と右側端部とにさらに簡単にかつさらに確実に取付けることができる。 According to the first aspect of the present invention, the string attaching short hole and the band attaching long hole are respectively disposed on the left end and the right end of the outer peripheral portion of the mask body. ing. For this reason, when a head-worn string such as a rubber string is at hand of a mask wearer, the head-worn string is relatively easily and relatively reliably hung on the mask wearer's head, etc. Thus, the mask body can be mounted on the mask wearer relatively easily and relatively reliably. Then, when a head wear strap such as a rubber strap is not at hand of the mask wearer, the head wear strap such as an elastic bandage is applied to the mask wearer's head relatively easily and relatively securely. Thus, the mask body can be mounted on the mask wearer relatively easily and relatively easily. This also applies to the case where a head-worn string such as a rubber string is at hand of a mask wearer or the like. And according to the invention which concerns on Claim 2, the elastic band for head mounting | wearing such as elastic bands for head mounting | wearing, such as a rubber string, and an elastic bandage, The left side edge part and right side edge part in the outer peripheral part of a mask main body It can be attached more easily and more securely.

また、請求項３に係る発明によれば、左側の孔形成用突出部と右側の孔形成用突出部とのそれぞれによって、マスク本体の左右両側の端部のうちの標準的な高さの取付け箇所を示唆することができるので、マスク装着者などがマスク本体をマスク装着者の頭部にさらに簡単にかつさらに確実に装着することができる。そして、請求項４に係る発明によれば、左右一対の孔形成用突出部の強度をほとんど低下させることなく、請求項３に係る発明による上述の効果をさらに良好に奏することができる。さらに、請求項５、６および７にそれぞれ係る発明によれば、請求項３および４にそれぞれ係る発明によって奏する上述の効果をさらに良好に奏することができる。そして、請求項８および９にそれぞれ係る発明によれば、請求項３に係る発明によって奏する上述の効果をさらに良好に奏することができる。また、請求項１０および１１にそれぞれ係る発明によれば、請求項３および４にそれぞれ係る発明によって奏する上述の効果をさらに良好に奏することができる。 According to the invention of claim 3, the standard height attachment of the left and right end portions of the mask main body by the left hole forming protrusion and the right hole forming protrusion, respectively. Since the location can be suggested, the mask wearer or the like can more easily and more reliably attach the mask body to the mask wearer's head. And according to the invention concerning Claim 4, the above-mentioned effect by the invention concerning Claim 3 can be produced more satisfactorily, without almost reducing the intensity of a pair of right and left hole forming projections. Further, according to the inventions according to claims 5, 6 and 7, respectively, the above-described effects produced by the inventions according to claims 3 and 4 can be further improved. And according to the invention concerning each of Claim 8 and 9, the above-mentioned effect produced by the invention concerning Claim 3 can be produced still more satisfactorily. Further, according to the inventions according to claims 10 and 11, respectively, the above-described effects produced by the inventions according to claims 3 and 4 can be further improved.

本発明を酸素マスク装置に適用した一実施例における酸素マスク装置の正面図である。（実施例１）It is a front view of the oxygen mask apparatus in one Example which applied this invention to the oxygen mask apparatus. Example 1 図１の酸素マスク装置の第１の装着状態での斜視図である。（実施例１）It is a perspective view in the 1st mounting state of the oxygen mask apparatus of FIG. Example 1 図２に示す第１の装着状態での酸素マスク装置における紐取付け用短孔への頭部装着用ゴム紐の取付け操作の初期段階を示す要部の斜視図である。（実施例１）FIG. 3 is a perspective view of a main part showing an initial stage of an attaching operation of a head-attaching rubber cord to a cord attaching short hole in the oxygen mask device in the first attachment state shown in FIG. 2. Example 1 図２に示す第１の装着状態での酸素マスク装置における紐取付け用短孔への頭部装着用ゴム紐の取付け操作の完了段階を示す要部の斜視図である。（実施例１）FIG. 3 is a perspective view of a main part showing a completion stage of an attaching operation of a head-attaching rubber cord to a cord attaching short hole in the oxygen mask device in the first attachment state shown in FIG. Example 1 図１の酸素マスク装置の第２の装着状態での包帯取付け用長孔への頭部装着用伸縮包帯の取付け操作の初期の段階を示す要部の斜視図である。（実施例１）It is a perspective view of the principal part which shows the initial stage of the attachment operation of the expansion bandage for head mounting to the long hole for bandage attachment in the 2nd mounting state of the oxygen mask apparatus of FIG. Example 1 図１の酸素マスク装置の第２の装着状態での包帯取付け用長孔への頭部装着用伸縮包帯の取付け操作の途中の段階を示す要部の斜視図である。（実施例１）It is a perspective view of the principal part which shows the stage in the middle of the attachment operation of the elastic bandage for head mounting to the long hole for bandage attachment in the 2nd mounting state of the oxygen mask apparatus of FIG. Example 1 図１の酸素マスク装置の第２の装着状態での包帯取付け用長孔への頭部装着用伸縮包帯の取付け操作の完了段階を示す要部の斜視図である。（実施例１）It is a perspective view of the principal part which shows the completion | finish step of the mounting operation of the elastic bandage for head mounting to the long hole for bandage mounting in the 2nd mounting state of the oxygen mask apparatus of FIG. Example 1

つぎに、本発明の一実施例における酸素マスク装置１を、「１、酸素マスク本体の説明」、「２、第１〜第４のコネクタおよびガス供給用チューブの説明」および「３、マスク装着者への酸素マスク装置の装着操作の説明」に項分けして、図１〜図７を参照しつつ説明する。 Next, the oxygen mask device 1 according to one embodiment of the present invention is divided into “1, description of the oxygen mask body”, “2, description of the first to fourth connectors and the gas supply tube”, and “3, mounting of the mask”. The description will be made with reference to FIG. 1 to FIG.

１、酸素マスク本体の説明 1. Description of oxygen mask body

ガス類供給用マスク装置としての酸素マスク装置１は、図１および図２に示すように、患者などのマスク装着者２の顔面３のほぼ中央の部分（具体的には、鼻部４および口部５ならびにこれらの周辺部）を覆うことができるマスク本体６を備えている。なお、マスク本体６は、軟質塩化ビニールなどのほぼ透明な（換言すれば、透光性の）軟質合成樹脂などから、左右ほぼ対称的な形状を有するように、一体成形されていてよい。また、図２において、符号７は、マスク装着者２の左目であり、符号８は、マスク装着者の右目である。そして、マスク本体６の外周部分１１のうちの少なくとも左右両側端部１１ａ、１１ｂは、そのほぼ全体にわたってほぼ平らな面に構成されている。なお、外周部分１１のうちの上側端部１１ｃは、マスク装着者２の鼻部４の形状にほぼ対応するように、左右両側端部１１ａ、１１ｂとほぼ連続していて前方（換言すれば、外側）に向って多少突出している弯曲形状であってよい。そして、外周部分１１のうちの下側端部１１ｄは、マスク装着者２の顎部１２のほぼ上方付近にほぼ対応するように、左右両側端部１１ａ、１１ｂとほぼ連続しているほぼ平らな面であってもよいが、マスク装着者２の顎部１２のほぼ下方付近にほぼ対応するように、左右両側部１１ａ、１１ｂとほぼ連続していてほぼ前方（換言すれば、外側）に向って多少突出している弯曲形状であってもよい。 As shown in FIGS. 1 and 2, an oxygen mask device 1 serving as a gas supply mask device includes a substantially central portion of a face 3 of a mask wearer 2 such as a patient (specifically, a nose portion 4 and a mouth). The mask main body 6 which can cover the part 5 and these peripheral parts) is provided. The mask body 6 may be integrally formed from a substantially transparent (in other words, translucent) soft synthetic resin such as soft vinyl chloride so as to have a substantially symmetrical shape. Moreover, in FIG. 2, the code | symbol 7 is a mask wearer's 2 left eye, and the code | symbol 8 is a mask wearer's right eye. In addition, at least the left and right side end portions 11a and 11b of the outer peripheral portion 11 of the mask main body 6 are configured to have a substantially flat surface over substantially the whole. The upper end portion 11c of the outer peripheral portion 11 is substantially continuous with the left and right side end portions 11a and 11b so as to substantially correspond to the shape of the nose portion 4 of the mask wearer 2 (in other words, It may be a curved shape that protrudes somewhat toward the outside. The lower end portion 11d of the outer peripheral portion 11 is substantially flat and substantially continuous with the left and right side end portions 11a and 11b so as to substantially correspond to the vicinity of the upper portion of the jaw 12 of the mask wearer 2. Although it may be a surface, it is substantially continuous with the left and right side portions 11a and 11b so as to substantially correspond to the vicinity of the lower part of the jaw 12 of the mask wearer 2 and is directed substantially forward (in other words, outward). The curved shape may be slightly protruding.

マスク本体６の外周部分１１の左右一対の側端部１１ａ、１１ｂの中間部分のうちの多少上方の部分には、図１および図２に示すように、これら左右一対の側端部１１ａ、１１ｂから（好ましくは、ほぼ左右両外側に向って先細りになるように突出するように）左右両外側に向かってそれぞれほぼ等脚台形状などのほぼ台形状、ほぼ長方形状、ほぼ半円形状、ほぼ半楕円形状、ほぼ半長円形状などに突出している左右両側の孔形成用突出部１３ａ、１３ｂが、左右一対の側端部１１ａ、１１ｂのそれぞれとほぼ面一になるように一体成形されて、配設されている。そして、図示の実施例においてはそれぞれほぼ等脚台形状であるこれら左右両側の孔形成用突出部１３ａ、１３ｂのそれぞれには、柔軟性と弾性とを有する第１の頭部装着用長手状部材としての偏平形状の第１の頭部装着用ゴム紐（換言すれば、偏平形状で比較的幅狭の弾性体）１４の左右両端部がそれぞれ挿通されて取付けられる左右一対の紐取付け用の短孔（換言すれば、平面的に見て長さが短い孔）１５が、貫通孔として配設されている。また、同様の紐取付け用の短孔（換言すれば、平面的に見て長さが短い孔）１６、１７、１８が、左右一対の側端部１１ａ〜１１ｂのほぼ上下方向にそれぞれ沿って上方から下方に向って例えば３個ずつ、貫通孔として順次配設されている。さらに、第１の頭部装着用ゴム紐１４と同様に構成されていてよい第２の頭部装着用紐としての第２の頭部装着用ゴム紐（換言すれば、偏平形状で比較的幅狭の弾性体）２１の両端部が、第１の頭部装着用ゴム紐１４に代えてまたは第１の頭部装着用ゴム紐１４に加えて、上記３個ずつの紐取付け用短孔１６、１７、１８のうちのいずれか１個に挿通されて取付けられていてもよい。 As shown in FIGS. 1 and 2, a pair of left and right side end portions 11a and 11b is located slightly above the middle portion of the pair of left and right side end portions 11a and 11b of the outer peripheral portion 11 of the mask body 6. From (preferably, projecting so as to taper toward both the left and right outer sides), substantially trapezoidal shapes such as substantially isosceles trapezoidal shapes, substantially rectangular shapes, substantially semicircular shapes, substantially The left and right hole forming protrusions 13a and 13b protruding in a semi-elliptical shape, a substantially semi-oval shape, etc. are integrally molded so as to be substantially flush with each of the pair of left and right side end portions 11a and 11b. Arranged. In the illustrated embodiment, each of the left and right hole-forming projections 13a and 13b each having a substantially isosceles trapezoidal shape is provided with a first head-mounted longitudinal member having flexibility and elasticity. A pair of left and right straps attached to the left and right ends of a flat-shaped first head-mounted rubber cord (in other words, a flat and relatively narrow elastic body) 14. A hole (in other words, a hole that is short in plan view) 15 is provided as a through hole. In addition, short holes for attaching the same string (in other words, holes having a short length when viewed in plan) 16, 17, and 18 are substantially along the vertical direction of the pair of left and right side end portions 11a to 11b, respectively. For example, three pieces are sequentially arranged as through-holes from above to below. Furthermore, a second head-mounted rubber cord as a second head-mounted cord that may be configured in the same manner as the first head-mounted rubber cord 14 (in other words, a flat shape and a relatively wide width). Narrow elastic body) 21 has both end portions 16 instead of the first head-mounted rubber cord 14 or in addition to the first head-mounted rubber cord 14. , 17, and 18 may be inserted and attached.

左右一対の側端部１１ａ、１１ｂのそれぞれには、図１および図２に示すように、左右一対の側端部１１ａ、１１ｂにそれぞれ沿ってほぼ直線形状に延在していてよい上下一対の包帯取付け用長孔（換言すれば、平面的に見て長細い孔）２２、２３が、貫通孔として配設されている。また、これら上下一対の包帯取付け用長孔２２、２３のうちの上側の包帯取付け用長孔２２は、ほぼ左右方向において紐取付け用短孔１５（換言すれば、突出部１３ａ、１３ｂ）にそれぞれ対向するように隣接している。なお、これらの包帯取付け用長孔２２、２３のうちの左右一対の包帯取付け用長孔２２には、柔軟性を有する第２の頭部装着用長手状部材としての頭部装着用伸縮包帯（換言すれば、偏平形状で比較的幅広に弾性体）２４の両端部が、第１の頭部装着用ゴム紐１４に代えて、それぞれ挿通されて取付けられることができる。さらに、第２の長手状装着用部材としての第２の頭部装着用伸縮包帯（図示せず）の両端部が、頭部装着用伸縮包帯２４に代えてまたは頭部装着用伸縮包帯２４に加えて、左右一対の包帯取付け用長孔２３に挿通されて取付けられていてもよい。なお、第１および第２の頭部装着用ゴム紐１４、２１ならびに頭部装着用伸縮包帯２４および上記第２の頭部装着用伸縮包帯（換言すれば、偏平形状で比較的幅広の第１および第２の弾性体）のそれぞれは、マスク装着者２の左側の頬部、後頭部および右側の頬部をそれぞれ通るように、マスク装着者２の頭部２６に掛け渡されることができる。さらに、第１の頭部装着用ゴム紐（換言すれば、弾性紐）１４、２１のうちの少なくとも一方と、頭部装着用伸縮包帯２４および上記第２の頭部装着用伸縮包帯（換言すれば、第１および第２の弾性包帯などの第１および第２の弾性帯）のうちの少なくとも一方とが、左右一対の側端部１１ａ、１１ｂに、上述のようにして同時に取付けられて、マスク装着者２の頭部２６にそれぞれ掛け渡されるようにしてもよい。 Each of the pair of left and right side end portions 11a and 11b has a pair of upper and lower sides which may extend in a substantially linear shape along the pair of left and right side end portions 11a and 11b, respectively, as shown in FIGS. Long holes for bandage attachment (in other words, long holes in plan view) 22 and 23 are arranged as through holes. Of the pair of upper and lower bandage attachment long holes 22 and 23, the upper bandage attachment long hole 22 is formed in the string attachment short hole 15 (in other words, the protruding portions 13a and 13b) in the substantially left-right direction. Adjacent to face each other. Of the bandage attachment long holes 22 and 23, the pair of left and right bandage attachment long holes 22 has a flexible headband mounting elastic bandage as a second head-mounted longitudinal member having flexibility ( In other words, both ends of the flat and relatively wide elastic body 24 can be inserted and attached instead of the first head-mounted rubber cord 14. Further, both end portions of a second head-mounted elastic bandage (not shown) as the second longitudinal mounting member are replaced with the head-mounted elastic bandage 24 or to the head-mounted elastic bandage 24. In addition, the pair of left and right bandage attachment slots 23 may be inserted and attached. The first and second head-mounted rubber bands 14, 21 and the head-mounted elastic bandage 24 and the second head-mounted elastic bandage (in other words, a flat and relatively wide first band). And the second elastic body) can be passed over the head 26 of the mask wearer 2 so as to pass through the left cheek, the back of the mask, and the right cheek, respectively. Furthermore, at least one of the first head-mounted rubber straps (in other words, elastic straps) 14 and 21, the head-mounted elastic bandage 24, and the second head-mounted elastic bandage (in other words, For example, at least one of the first and second elastic bands such as the first and second elastic bandages is attached to the pair of left and right side end portions 11a and 11b at the same time as described above, You may make it hang over head 26 of mask wearer 2, respectively.

図１に示すマスク本体６の上下方向における長さＬ１は、ほぼ１０５ｍｍである。そして、マスク本体６の上端から左右一対の孔形成用突出部１３ａ、１３ｂ（換言すれば、左右一対の紐取付け用短孔１５）のそれぞれのほぼ中心までの上下方向における長さＬ２は、ほぼ３８ｍｍである。したがって、マスク本体６の上下方向における長さＬ１に対する、左右一対の孔形成用突出部１３ａ、１３ｂ（換言すれば、左右一対の紐取付け用短孔１５）のそれぞれのほぼ中心までの上下方向における長さＬ２の比Ｌ２／Ｌ１は、ほぼ０．３６である。また、図１に示すように、それぞれほぼ等脚台形状などであってよい左右一対の孔形成用突出部１３ａ、１３ｂの外側面および内側面のそれぞれの下底の長さＬ３および突出高さＬ４のそれぞれは、ほぼ６ｍｍ、ほぼ１４ｍｍおよびほぼ６ｍｍである。さらに、左右一対の孔形成用突出部１３ａ、１３ｂの外側面および内側面のそれぞれの面積は、ほぼ６０ｍｍ^２である。そして、上記比Ｌ２／Ｌ１は、本発明の目的を達成するためには、実用性の観点から見て一般的に、０．３８〜０．４８の範囲であるのが好ましく、０．３９〜０．４７の範囲であるのがさらに好ましく、０．４０〜０．４６の範囲であるのが最も好ましい。また、左右一対の孔形成用突出部１３ａ、１３ｂの外側面および内側面（換言すれば、ほぼ等脚台形状）のそれぞれの基端または基底である下底の長さＬ３は、本発明の目的を達成するためには、実用性の観点から見て一般的に、１０．５〜１７．５ｍｍの範囲であるのが好ましく、１１．２〜１６．８ｍｍの範囲であるのがさらに好ましく、１１．７〜１６．３ｍｍの範囲であるのが最も好ましい。さらに、左右一対の孔形成用突出部１３ａ、１３ｂの外側面および内側面（換言すれば、ほぼ等脚台形状）のそれぞれの突出高さＬ４は、本発明の目的を達成するためには、実用性の観点から見て一般的に、４．５〜７．５ｍｍの範囲であるのが好ましく、４．８〜７．２ｍｍの範囲であるのがさらに好ましく、５．０〜７．０ｍｍの範囲であるのが最も好ましい。また、左右一対の孔形成用突出部１３ａ、１３ｂの外側面および内側面のそれぞれ（換言すれば、ほぼ等脚台形状）の面積は、本発明の目的を達成するためには、実用性の観点から見て一般的に、４５〜７５ｍｍ^２の範囲であるのが好ましく、４８〜７２ｍｍ^２の範囲であるのがさらに好ましく、５０〜７０ｍｍ^２の範囲であるのが最も好ましい。なお、マスク本体６の外周部分１１の左右一対の側端部１１ａ、１１ｂに連なっている左右両側の孔形成用突出部１３ａ、１３ｂのそれぞれの形状が、ほぼ等脚台形状ではなくて、ほぼ等脚台形状以外のほぼ台形状、ほぼ長方形状、ほぼ半円形状、ほぼ半楕円形状、ほぼ半長円形状などである場合にも、上記長さＬ３、上記突出高さＬ４および上記面積についての数値範囲はほぼ該当する。また、上記下底とは、左右両側の孔形成用突出部１３ａ、１３ｂのうちの左右両側の側端部１１ａ、１１ｂに連なっている部分（換言すれば、基端または基底）を意味している。 The length L1 in the vertical direction of the mask body 6 shown in FIG. 1 is approximately 105 mm. The length L2 in the vertical direction from the upper end of the mask main body 6 to the approximate center of each of the pair of left and right hole forming protrusions 13a and 13b (in other words, the pair of left and right string attachment short holes 15) is approximately 38 mm. Therefore, in the vertical direction up to the approximate center of each of the pair of left and right hole forming protrusions 13a and 13b (in other words, the pair of left and right string attachment short holes 15) with respect to the length L1 of the mask body 6 in the vertical direction. The ratio L2 / L1 of the length L2 is approximately 0.36. Further, as shown in FIG. 1, the length L3 and the protruding height of the bottom of each of the outer surface and the inner surface of the pair of left and right hole forming protrusions 13a and 13b, each of which may have a substantially isosceles trapezoidal shape. Each of L4 is approximately 6 mm, approximately 14 mm, and approximately 6 mm. Furthermore, the area of each of the outer surface and the inner surface of the pair of left and right hole forming protrusions 13a and 13b is approximately 60 mm ² . In order to achieve the object of the present invention, the ratio L2 / L1 is generally preferably in the range of 0.38 to 0.48 from the viewpoint of practicality, A range of 0.47 is more preferable, and a range of 0.40 to 0.46 is most preferable. In addition, the length L3 of the lower base, which is the base end or base of each of the outer and inner surfaces (in other words, substantially isosceles trapezoidal shape) of the pair of left and right hole forming protrusions 13a and 13b, In order to achieve the object, it is generally preferably in the range of 10.5 to 17.5 mm from the viewpoint of practicality, more preferably in the range of 11.2 to 16.8 mm, Most preferably, it is in the range of 11.7 to 16.3 mm. Furthermore, in order to achieve the object of the present invention, each protrusion height L4 of the outer surface and inner surface (in other words, substantially isosceles trapezoidal shape) of the pair of left and right hole forming protrusions 13a and 13b is as follows. In general, from the viewpoint of practicality, it is preferably in the range of 4.5 to 7.5 mm, more preferably in the range of 4.8 to 7.2 mm, and 5.0 to 7.0 mm. Most preferred is a range. Further, the area of each of the outer and inner surfaces of the pair of left and right hole forming projections 13a and 13b (in other words, substantially isosceles trapezoidal shape) is practical in order to achieve the object of the present invention. generally from the viewpoint, it is preferably in the range of 45～75Mm ^2, more preferably in the range of 48～72Mm ^2, and even most preferably in the range of 50 to 70 mm ^2. The shape of each of the left and right hole forming protrusions 13a and 13b connected to the pair of left and right side end portions 11a and 11b of the outer peripheral portion 11 of the mask body 6 is not substantially an isosceles trapezoidal shape. The length L3, the protrusion height L4, and the area are also substantially trapezoidal shapes other than the isosceles trapezoidal shape, the substantially rectangular shape, the substantially semicircular shape, the substantially semielliptical shape, and the substantially semielliptical shape. The numerical range of is almost applicable. In addition, the lower bottom means a portion (in other words, a base end or a base) connected to the left and right side end portions 11a and 11b of the left and right hole forming protrusions 13a and 13b. Yes.

図１にそれぞれ示す紐取付け用短孔１５〜１８は、平面的に見てほぼ円形状、ほぼ６角形状、ほぼ８角形状などの多角形状などの短孔形状であってよい。そして、紐取付け用短孔１５〜１８のそれぞれの直径（換言すれば、平面的に見た最大長さ）Ｌ５（図示せず）は、ほぼ２ｍｍである。したがって、紐取付け用短孔１５〜１８のそれぞれの平面的に見た面積は、ほぼ３．１４ｍｍ^２である。そして、包帯取付け用長孔２２、２３のそれぞれの平面的に見た幅Ｌ６（図示せず）は、ほぼ１ｍｍである。また、ほぼ直線形状に延在していてよい包帯取付け用長孔２２、２３のそれぞれの平面的に見た長さＬ７（図示せず）は、ほぼ１０ｍｍである。さらに、それぞれの包帯取付け用長孔２２、２３のそれぞれのほぼ上側およびほぼ下側の端部（換言すれば、両端部）は、平面的に見て、ほぼ半円形状である。したがって、包帯取付け用長孔２２、２３のそれぞれの平面的に見た面積は、ほぼ９ｍｍ^２である。そして、紐取付け用短孔１５〜１８のそれぞれの上記直径（換言すれば、上記最大長さ）Ｌ５は、本発明の目的を達成するためには、実用性の観点から見て一般的に、１．５〜２．５ｍｍの範囲であるのが好ましく、１．６〜２．４ｍｍの範囲であるのがさらに好ましく、１．７〜２．３ｍｍの範囲であるのが最も好ましい。また、紐取付け用短孔１５〜１８のそれぞれの平面的に見た上記面積は、本発明の目的を達成するためには、実用性の観点から見て一般的に、２．３５〜３．９５ｍｍ^２の範囲であるのが好ましく、２．５０〜３．８０ｍｍ^２の範囲であるのがさらに好ましく、２．６２〜３．６６ｍｍ^２の範囲であるのが最も好ましい。さらに、包帯取付け用長孔（換言すれば、帯取付け用長孔）２２、２３のそれぞれの平面的に見た幅Ｌ６は、本発明の目的を達成するためには、実用性の観点から見て一般的に、０．７５〜１．２５ｍｍの範囲であるのが好ましく、０．８０〜１．２０ｍｍの範囲であるのがさらに好ましく、０．８２〜１．１８ｍｍの範囲であるのが最も好ましい。そして、包帯取付け用長孔２２、２３のそれぞれの平面的に見た長さＬ７は、本発明の目的を達成するためには、実用性の観点から見て一般的に、７．５〜１２．５ｍｍの範囲であるのが好ましく、８．０〜１２．０ｍｍの範囲であるのがさらに好ましく、８．２〜１１．８ｍｍの範囲であるのが最も好ましい。また、包帯取付け用長孔２２、２３の平面的に見た上記面積は、本発明の目的を達成するためには、実用性の観点から見て一般的に、６．８〜１１．４ｍｍ^２の範囲であるのが好ましく、７．２〜１０．８ｍｍ^２の範囲であるのがさらに好ましく、７．５〜１０．５ｍｍ^２の範囲であるのが最も好ましい。 Each of the string attachment short holes 15 to 18 shown in FIG. 1 may have a short hole shape such as a polygonal shape such as a substantially circular shape, a substantially hexagonal shape, or a substantially octagonal shape when seen in a plan view. And each diameter (in other words, the maximum length seen planarly) L5 (not shown) of the string attachment short holes 15 to 18 is approximately 2 mm. Accordingly, the area of each of the string attaching short holes 15 to 18 in a plan view is approximately 3.14 mm ² . The width L6 (not shown) of each of the bandage attaching long holes 22 and 23 as viewed in plan is approximately 1 mm. In addition, the length L7 (not shown) in plan view of each of the bandage attachment long holes 22 and 23 that may extend in a substantially linear shape is approximately 10 mm. Furthermore, the substantially upper and substantially lower ends (in other words, both end portions) of each of the bandage attaching long holes 22 and 23 are substantially semicircular when viewed in a plan view. Therefore, the planar area of each of the bandage attaching long holes 22 and 23 is approximately 9 mm ² . And each said diameter (in other words, the said maximum length) L5 of the string attachment short holes 15-18 is generally seen from a practical viewpoint, in order to achieve the objective of this invention, It is preferably in the range of 1.5 to 2.5 mm, more preferably in the range of 1.6 to 2.4 mm, and most preferably in the range of 1.7 to 2.3 mm. In addition, the above-mentioned area of each of the string attachment short holes 15 to 18 in plan view is generally 2.35 to 3 in view of practicality in order to achieve the object of the present invention. it is preferably in the range of 95 mm ^2, more preferably in the range of 2.50~3.80mm ^2, and even most preferably in the range of 2.62~3.66mm ^2. Further, the width L6 of each of the bandage attachment long holes (in other words, the band attachment long holes) 22 and 23 seen in a plan view is from a practical point of view in order to achieve the object of the present invention. In general, the range is preferably 0.75 to 1.25 mm, more preferably 0.80 to 1.20 mm, and most preferably 0.82 to 1.18 mm. preferable. The length L7 of the bandage attachment long holes 22 and 23 as viewed in plan is generally 7.5 to 12 from the viewpoint of practicality in order to achieve the object of the present invention. It is preferably in the range of 0.5 mm, more preferably in the range of 8.0 to 12.0 mm, and most preferably in the range of 8.2 to 11.8 mm. Further, the above-mentioned area of the bandage attachment long holes 22 and 23 in plan view is generally 6.8 to 11.4 mm ² from the viewpoint of practicality in order to achieve the object of the present invention. is preferably in the range of, more preferably in the range of 7.2～10.8Mm ^2, and even most preferably in the range of 7.5~10.5mm ^2.

マスク本体６のうちの左右両側の多少上方の部分には、図１および図２に示すように、マスク本体６の内側と外側との間の通気を行うための左右一対のほぼ三角形状の通気用開孔２５ａ、２５ｂがそれぞれ配設されている。なお、これら左右一対の通気用開孔２５ａ、２５ｂのそれぞれは、マスク本体６がマスク装着者２に装着されている状態においては、マスク装着者２の左右両側の鼻孔およびこれらの鼻孔の周囲にそれぞれ対応する位置に配置される。そして、右側の通気用開孔２５ｂは、左側の通気用開孔２５ａと左右ほぼ対称的な形状を有していてよい。また、マスク本体６のうちのほぼ中心の箇所から多少下方の部分には、第１および第２のコネクタ３１、３２をそれぞれ取付けるためのコネクタ取付け部３３が配設されている。また、コネクタ取付け部３３には、ほぼ円柱形状などのほぼ柱形状であってよい開孔３４が配設されている。また、コネクタ取付け部３３は、マスク本体６の水平方向および垂直方向のそれぞれに対して傾斜した状態でもって、マスク本体６に配設されている。そして、コネクタ取付け部３３の上記傾斜方向は、下方から上方に向かって外側に突出する方向であってよい。 As shown in FIGS. 1 and 2, a pair of left and right substantially triangular ventilations for ventilating the inside and the outside of the mask body 6 are provided in the upper part of the left and right sides of the mask body 6 as shown in FIGS. Open holes 25a and 25b are provided. Each of the pair of left and right ventilation openings 25a and 25b is formed around the nostrils on both the left and right sides of the mask wearer 2 and around these nostrils when the mask body 6 is worn on the mask wearer 2. They are arranged at corresponding positions. The right vent hole 25b may have a shape that is substantially symmetrical to the left vent hole 25a. In addition, a connector mounting portion 33 for mounting the first and second connectors 31 and 32 is disposed at a portion slightly below the center of the mask body 6. Further, the connector mounting portion 33 is provided with an opening 34 that may be substantially columnar, such as a substantially cylindrical shape. The connector mounting portion 33 is disposed on the mask body 6 in a state where it is inclined with respect to the horizontal direction and the vertical direction of the mask body 6. And the said inclination direction of the connector attaching part 33 may be a direction which protrudes outside toward the upper direction from the downward direction.

２、第１〜第４のコネクタおよび酸素供給用チューブの説明 2. Description of the first to fourth connectors and the oxygen supply tube

酸素マスク装置１は、図１および図２に示すように、第１のコネクタ３１、第２のコネクタ３２、第３のコネクタ３５、ガス類供給用チューブ３６および第４のコネクタ（図示せず）をそれぞれ備えている。なお、上記第１〜第４のコネクタのそれぞれは、硬質塩化ビニールなどのほぼ透明な（換言すれば、透光性の）硬質合成樹脂などから、一体成形されていてよい。また、ガス類供給用チューブ３６は、軟質塩化ビニールなどのほぼ透明な（換言すれば、透光性の）軟質合成樹脂などから、一体成形されていてよい。そして、第１のコネクタ３１は、この第１のコネクタ３１の軸心方向にほぼ沿ってほぼ斜め方向に延在するほぼ円筒形状などの筒形状であってよいガス類供給用の筒状部４１と、この筒状部４１の上端側に突出するように、この上端側に配設されているほぼ円錐形状などの錐形状などの上端面部４２とを備えている。また、このほぼ錐形状などの上端面部４２のほぼ中心部分には、ほぼ円形状などであってよいガス類導入用（換言すれば、マスク本体６の内側への酸素導入用）の開口４３が配設されている。そして、第１のコネクタ３１のガス類供給用筒状部４１がマスク本体６の内側から開孔３４に挿通されることによって、第１のコネクタ３１が、マスク本体６に取付けられる。 As shown in FIGS. 1 and 2, the oxygen mask device 1 includes a first connector 31, a second connector 32, a third connector 35, a gas supply tube 36, and a fourth connector (not shown). Each is equipped. Each of the first to fourth connectors may be integrally formed from a substantially transparent (in other words, translucent) hard synthetic resin such as hard vinyl chloride. Further, the gas supply tube 36 may be integrally formed from a substantially transparent (in other words, translucent) soft synthetic resin such as soft vinyl chloride. The first connector 31 has a cylindrical portion 41 for supplying gases, which may be in a cylindrical shape such as a substantially cylindrical shape extending substantially obliquely along the axial direction of the first connector 31. And an upper end surface portion 42 having a cone shape such as a substantially conical shape disposed on the upper end side so as to protrude toward the upper end side of the cylindrical portion 41. In addition, an opening 43 for introducing gases (in other words, for introducing oxygen into the inside of the mask body 6) which may be substantially circular or the like is formed at the substantially central portion of the upper end surface portion 42 such as the substantially conical shape. It is arranged. The first connector 31 is attached to the mask body 6 by inserting the gas supply cylindrical portion 41 of the first connector 31 into the opening 34 from the inside of the mask body 6.

第２のコネクタ３２の下端側の部分は、図１および図２に示すように、第３のコネクタ３５が取付けられるほぼ円筒形状などのほぼ筒形状の下側筒状部４４を構成している。そして、この下側筒状部４４は、通常はほぼ上下方向に延在している。また、第２のコネクタ３２の上端側の部分は、第１のコネクタ３１の軸心方向にほぼ沿って延在するように、この第２のコネクタ３２の下端側の部分から上方に向かって斜め方向に湾曲している。そして、第２のコネクタ３２のほぼ円筒状などのほぼ筒状の上端付近は、第１のコネクタ３１のガス類供給用筒状部４１とマスク本体６の筒状突壁部との間に挿入されている。また、第３のコネクタ３５は、円筒形状などの大径でかつ有底の筒状部４４と、この筒状部４４の下端部に一体成形などにより連結されている円筒形状などの小径の筒状部４５とをそれぞれ備えている。なお、大径の筒状部４４の底部のほぼ中心位置には、小径の筒状部４５と連通するための貫通孔４６が形成されている。そして、小径の筒状部４５内には、ガス類供給用チューブ３６の一端部が挿入されて連結されている。また、ガス類供給用チューブ３６の上端開口は、大径の筒状部４４に貫通孔４６を介して連通している。さらに、ガス類供給用チューブ３６の他端部には、前記第４のコネクタ（図示せず）が連結されている。そして、この第４のコネクタは、酸素ボンベなどのガスボンベ（図示せず）や、病室などに配設されたガス類供給用ノズル（図示せず）に、必要に応じて接続されることができる。したがって、酸素マスク装置１が図１および図２に示すようにマスク装着者２の顔面３に装着されているときも装着されていないときも、ガス流が第１のコネクタ３１のガス導入用開口４３からマスク本体６内の空間（換言すれば、顔面３とマスク本体６との間に存在するガス類導入空間）４７に送り込まれることができる。 As shown in FIGS. 1 and 2, the lower end portion of the second connector 32 constitutes a lower cylindrical portion 44 having a substantially cylindrical shape such as a substantially cylindrical shape to which the third connector 35 is attached. . The lower cylindrical portion 44 usually extends substantially in the vertical direction. Further, the upper end portion of the second connector 32 is inclined upward from the lower end portion of the second connector 32 so as to extend substantially along the axial direction of the first connector 31. Curved in the direction. The vicinity of the substantially cylindrical upper end of the second connector 32 is inserted between the gas supply tubular portion 41 of the first connector 31 and the tubular projecting wall portion of the mask body 6. Has been. The third connector 35 includes a cylindrical portion 44 having a large diameter and a bottom, such as a cylindrical shape, and a small diameter tube having a cylindrical shape connected to the lower end portion of the cylindrical portion 44 by integral molding or the like. Each of which has a shape portion 45. Note that a through hole 46 for communicating with the small-diameter cylindrical portion 45 is formed at a substantially central position of the bottom portion of the large-diameter cylindrical portion 44. One end of a gas supply tube 36 is inserted into and connected to the small-diameter cylindrical portion 45. The upper end opening of the gas supply tube 36 communicates with the large-diameter cylindrical portion 44 through the through hole 46. Further, the fourth connector (not shown) is connected to the other end of the gas supply tube 36. The fourth connector can be connected to a gas cylinder (not shown) such as an oxygen cylinder or a gas supply nozzle (not shown) disposed in a hospital room or the like as necessary. . Therefore, whether the oxygen mask device 1 is attached to the face 3 of the mask wearer 2 as shown in FIGS. 1 and 2, the gas flow is opened to the gas inlet of the first connector 31. 43 to the space in the mask main body 6 (in other words, the gas introduction space existing between the face 3 and the mask main body 6) 47.

３、マスク装着者への酸素マスク装置の装着操作の説明 3. Explanation of wearing operation of oxygen mask device to mask wearer

酸素マスク装置１をマスク装着者２に装着するのに用いられる第１および第２の頭部装着用ゴム紐（換言すれば、それぞれが偏平形状で比較的幅狹の弾性体）１４、２１のそれぞれは、横幅が比較的狭いテープ形状に構成されていて、綿糸とポリウレタン繊維糸（特に、ポリウレタン弾性繊維糸）とで織られた織物であってよい。そして、それぞれの頭部装着用ゴム紐１４、２１の両方の端部５１のそれぞれは、熱収納性の合成樹脂などから構成されたほぼ円筒形状などのほぼ筒形状などのチューブ５２により被覆されることによって、ほぼ円柱形状などのほぼ柱形状などに成形されている。なお、チューブ５２のそれぞれの外周面の直径（換言すれば、横断面の最大長さ）は、ほぼ２ｍｍである。したがって、チューブ５２の外周面によって囲まれる頭部装着用ゴム紐１４、２１の端部５１とチューブ５２とから成る被取付け部５４の横断面積は、ほぼ３．１４ｍｍ^２である。そして、それぞれの頭部装着用ゴム紐１４、２１のうちの両方の端部５１を除く中間部分５３の横断面の厚みは、ほぼ１．５ｍｍである。また、上記中間部分５３の横断面の長さは、ほぼ６ｍｍである。そして、チューブ５２の両方の端部５１の外周面のそれぞれの直径（換言すれば、上記最大長さ）は、本発明の目的を達成するためには、実用性の観点から見て一般的に、１．５〜２．５ｍｍの範囲であるのが好ましく、１．６〜２．４ｍｍの範囲であるのがさらに好ましく、１．７〜２．３ｍｍの範囲であるのが最も好ましい。また、被取付け部５４の横断面積は、本発明の目的を達成するためには、実用性の観点から見て一般的に、２．３６〜３．９４ｍｍ^２の範囲であるのが好ましく、２．５０〜３．７８ｍｍ^２の範囲であるのがさらに好ましく、２．６２〜３．６６ｍｍ^２の範囲であるのが最も好ましい。さらに、それぞれの頭部装着用ゴム紐（換言すれば、扁平形状で比較的幅狭の頭部装着用弾性体）１４、２１のうちの両方の端部５１を除く中間部分５３の横断面の厚みは、本発明の目的を達成するためには、実用性の観点から見て一般的に、１．１２〜１．８８ｍｍの範囲であるのが好ましく、１．２０〜１．８０ｍｍの範囲であるのがさらに好ましく、１．２５〜１．７５ｍｍの範囲であるのが最も好ましい。そして、上記中間部分５３の横断面の長さは、本発明の目的を達成するためには、実用性の観点から見て一般的に４．５〜７．５ｍｍの範囲であるのが好ましく、４．８〜７．２ｍｍの範囲であるのがさらに好ましく、５．０〜７．０ｍｍの範囲であるのが最も好ましい。 First and second head-mounted rubber straps (in other words, flat and relatively wide elastic bodies) 14 and 21 used for mounting the oxygen mask device 1 on the mask wearer 2 Each of them may be a woven fabric which is configured in a tape shape having a relatively narrow lateral width and is woven with cotton yarn and polyurethane fiber yarn (particularly, polyurethane elastic fiber yarn). Each of the end portions 51 of the head-mounted rubber straps 14 and 21 is covered with a tube 52 having a substantially cylindrical shape such as a substantially cylindrical shape made of heat-storable synthetic resin. Therefore, it is formed into a substantially columnar shape such as a substantially cylindrical shape. Note that the diameter of each outer peripheral surface of the tube 52 (in other words, the maximum length of the cross section) is approximately 2 mm. Therefore, the cross-sectional area of the mounted portion 54 composed of the end portion 51 of the head-mounted rubber straps 14 and 21 surrounded by the outer peripheral surface of the tube 52 and the tube 52 is approximately 3.14 mm ² . And the thickness of the cross section of the intermediate part 53 except the both ends 51 of each head mounting | wearing rubber cords 14 and 21 is about 1.5 mm. The length of the cross section of the intermediate portion 53 is approximately 6 mm. The diameters (in other words, the maximum length) of the outer peripheral surfaces of both end portions 51 of the tube 52 are generally determined from the viewpoint of practicality in order to achieve the object of the present invention. The range of 1.5 to 2.5 mm is preferable, the range of 1.6 to 2.4 mm is more preferable, and the range of 1.7 to 2.3 mm is most preferable. Further, in order to achieve the object of the present invention, the cross-sectional area of the mounted portion 54 is generally preferably in the range of 2.36 to 3.94 mm ² from the viewpoint of practicality. more preferably in the range of .50~3.78mm ^2, and even most preferably in the range of 2.62~3.66mm ^2. Further, the cross section of the intermediate portion 53 excluding the end portions 51 of both of the head wearing rubber straps (in other words, flat and relatively narrow head wearing elastic bodies) 14 and 21 is shown. In order to achieve the object of the present invention, the thickness is generally preferably in the range of 1.12 to 1.88 mm from the viewpoint of practicality, and in the range of 1.20 to 1.80 mm. More preferably, it is most preferably in the range of 1.25 to 1.75 mm. And in order to achieve the object of the present invention, the length of the cross section of the intermediate portion 53 is preferably in the range of 4.5 to 7.5 mm from the viewpoint of practicality, The range of 4.8 to 7.2 mm is more preferable, and the range of 5.0 to 7.0 mm is most preferable.

酸素マスク装置１をマスク装着者２に装着するのに用いられる頭部装着用伸縮包帯２４および第２の頭部装着用伸縮包帯（換言すれば、それぞれが扁平形状で比較的幅広である頭部装着用弾性体）のそれぞれは、横幅が比較的広いテープ形状に構成されていて、綿糸とポリウレタン繊維糸（特に、ポリウレタン弾性繊維糸）とで織られた織物であってよい。なお、頭部装着用伸縮包帯２４および第２の頭部装着用伸縮包帯のそれぞれの横断面の厚みは、ほぼ０．５ｍｍである。また、頭部装着用伸縮包帯２４および第２の頭部装着用伸縮包帯のそれぞれの横断面の長さは、ほぼ３８ｍｍである。そして、頭部装着用伸縮包帯２４および第２の頭部装着用伸縮包帯のそれぞれの横断面の厚みは、本発明の目的を達成するためには、実用性の観点から見て一般的に、０．３８〜０．６２ｍｍの範囲であるのが好ましく、０．４０〜０．６０ｍｍの範囲であるのがさらに好ましく、０．４２〜０．５８ｍｍの範囲であるのが最も好ましい。また、頭部装着用伸縮性包帯２４および第２の頭部装着用伸縮包帯のそれぞれの横断面の長さは、本発明の目的を達成するためには、実用性の観点から見て一般的に、２８．５〜４７．５ｍｍの範囲であるのが好ましく、３０．５〜４５．６ｍｍの範囲であるのがさらに好ましく、３１．６〜４４．４ｍｍの範囲であるのが最も好ましい。 A head-mounted stretch bandage 24 and a second head-mounted stretch bandage used to wear the oxygen mask device 1 on the mask wearer 2 (in other words, each head is flat and relatively wide) Each of the mounting elastic bodies is configured in a tape shape having a relatively wide lateral width, and may be a woven fabric woven with cotton yarn and polyurethane fiber yarn (particularly, polyurethane elastic fiber yarn). Note that the thickness of each of the cross-sections of the head-mounted stretch bandage 24 and the second head-mounted stretch bandage is approximately 0.5 mm. Further, the length of the cross section of each of the head-mounted stretch bandage 24 and the second head-mounted stretch bandage is approximately 38 mm. And, the thickness of each of the cross-sections of the head-mounted stretch bandage 24 and the second head-mounted stretch bandage is generally determined from the viewpoint of practicality in order to achieve the object of the present invention, The range is preferably 0.38 to 0.62 mm, more preferably 0.40 to 0.60 mm, and most preferably 0.42 to 0.58 mm. In addition, the length of each of the cross-sections of the head-mounted stretch bandage 24 and the second head-mounted stretch bandage is generally viewed from a practical point of view in order to achieve the object of the present invention. In addition, the range of 28.5 to 47.5 mm is preferable, the range of 30.5 to 45.6 mm is more preferable, and the range of 31.6 to 44.4 mm is most preferable.

頭部装着用ゴム紐１４または２１をマスク本体６の左右両側の端部１１ａ、１１ｂの紐取付け用短孔１５〜１８に取付けるに際しては、まず、図１および図２に示す左右両側の紐取付け用短孔１５〜１８のうちのいずれか１つの短孔を取付け箇所の対象として選択すればよい。この場合、左右両側の孔形式用突出部１３ａ、１３ｂは、マスク本体６の左右両側の端部１１ａ、１１ｂのうちの標準的な高さの取付け箇所であることを示唆している。したがって、頭部装着用ゴム紐１４または２１を標準的な高さの取付け箇所に取付けたいときには、マスク装着者２などが頭部装着用ゴム紐１４または２１を孔形成用突出部１３ａ、１３ｂに取付ければよい。なお、上述のように、左右両側の孔形成用突出部１３ａ、１３ｂのそれぞれがマスク本体６の左右両側の端部１１ａ、１１ｂのうちの標準的な高さの取付け箇所を示唆しているために、マスク装着者２などは、マスク本体６をマスク装着者２の頭部２６に取付ける操作を比較的容易にかつ比較的簡単に行うことができる。 When attaching the head-mounted rubber strap 14 or 21 to the strap mounting short holes 15 to 18 of the left and right ends 11a and 11b of the mask body 6, first, the left and right strap attachment shown in FIGS. Any one of the short holes for use 15 to 18 may be selected as a target of the attachment location. In this case, the hole type protrusions 13a and 13b on both the left and right sides suggest that the standard height of the left and right end portions 11a and 11b of the mask body 6 is attached. Therefore, when it is desired to attach the head-mounted rubber cord 14 or 21 to a standard height attachment location, the mask wearer 2 or the like attaches the head-mounted rubber cord 14 or 21 to the hole forming protrusions 13a and 13b. Install it. As described above, the hole forming protrusions 13a and 13b on both the left and right sides indicate standard height mounting positions on the left and right ends 11a and 11b of the mask body 6. In addition, the mask wearer 2 and the like can relatively easily and relatively easily perform the operation of attaching the mask body 6 to the head 26 of the mask wearer 2.

つぎに、第１の頭部装着用ゴム紐１４および第２の頭部装着用ゴム紐２１のうちの例えば第２の頭部装着用ゴム紐２１をマスク本体６の右側端部１１ｂの紐取付け用短孔１５〜１８のうちの例えば紐取付け用短孔１７に取付ける場合の取付け操作を、図３および図４を参照して説明する。なお、第２の頭部装着用ゴム紐２１をマスク本体６の左側端部１１ａの紐取付け用孔１７に取付ける場合の取付け操作や、第２の頭部装着用ゴム紐２１を左側の端部１１ａまたは右側の端部１１ｂの紐取付け用短孔１５、１６、１８のうちのいずれか１つに取付ける場合の取付け操作や、第１の頭部装着用ゴム紐１４を左側の端部１１ａまたは右側の端部１１ｂの紐取付け用短孔１５〜１８のうちのいずれか１つに取付ける場合の取付け操作も、つぎに説明する取付け操作と実質的に同一の取付け操作を行えばよい。 Next, of the first head-mounted rubber cord 14 and the second head-mounted rubber cord 21, for example, the second head-mounted rubber cord 21 is attached to the right end 11b of the mask body 6. The attachment operation in the case of attaching to, for example, the string attaching short hole 17 among the short holes 15 to 18 will be described with reference to FIGS. 3 and 4. It should be noted that when the second head mounting rubber strap 21 is attached to the strap mounting hole 17 of the left end portion 11a of the mask body 6, the second head mounting rubber strap 21 is attached to the left end portion. 11a or the attachment operation when attaching to one of the string attachment short holes 15, 16, 18 of the right end portion 11b, or the first head mounting rubber strap 14 is attached to the left end portion 11a or The attachment operation when attaching to any one of the string attachment short holes 15 to 18 of the right end portion 11b may be performed in substantially the same manner as the attachment operation described below.

第２の頭部装着用ゴム紐２１をマスク本体６の右側端部１１ｂの紐取付け用孔１７に取付けるに際しては、図３に示すように、長手状の第２の頭部装着用ゴム紐２１のいずれか一方のチューブ５２をマスク本体６の右側端部１１ｂの紐取付け用短孔１７にこの紐取付け用短孔１７の本来の下側面から差し込んで貫通させる。そして、このようにして貫通した上記一方のチューブ５２の先端部の側を、右側端部１１ｂに対して、この右側端部１１ｂの本来の上側面の側から引っ張り出す。この結果、チューブ５２と、このチューブ５２に繋がっている中間部分５３の先端側の一部分５５とが、図４に示すように、紐取付け用短孔１７をそれぞれ通過する。この場合、中間部分５３のうちの上記先端側の一部分５５に連なる部分が、くびれ部５６として、紐取付け用短孔１７内において右側端部１１ｂのうちのこの紐取付け用短孔１７の外周囲の部分よって支持される。なお、第２の頭部装着用ゴム紐２１は、既述のように、弾性体として構成されている。したがって、マスク本体６を頭部２６に装着するときや、この装着の状態になっているときに、第２の頭部装着用ゴム紐２１がこの第２の頭部装着用ゴム紐２１に加わる力によって紐取付け用短孔１５から抜け出るおそれは、ほとんどない。なお、第２の頭部装着用ゴム紐２１を紐取付け用短孔１７から取外したいときには、上述の取付けの場合とは逆に、第２の頭部装着用ゴム紐２１を紐取付け用短孔１７から引っ張り出せばよい。 When the second head-mounted rubber cord 21 is attached to the string-attaching hole 17 in the right end portion 11b of the mask body 6, as shown in FIG. Any one of the tubes 52 is inserted into the string attaching short hole 17 in the right end portion 11b of the mask body 6 from the original lower surface of the string attaching short hole 17 so as to penetrate therethrough. Then, the distal end portion side of the one tube 52 penetrating in this way is pulled out from the original upper side surface side of the right end portion 11b with respect to the right end portion 11b. As a result, the tube 52 and the portion 55 on the distal end side of the intermediate portion 53 connected to the tube 52 pass through the string attaching short hole 17 as shown in FIG. In this case, a portion of the intermediate portion 53 that is continuous with the portion 55 on the tip side serves as a constricted portion 56 in the short hole 17 for attaching the string, and the outer periphery of the short hole 17 for attaching the string in the right end portion 11b. It is supported by the part. In addition, the 2nd head mounting | wearing rubber cord 21 is comprised as an elastic body as stated above. Therefore, when the mask main body 6 is mounted on the head 26 or in the mounted state, the second head mounting rubber strap 21 is added to the second head mounting rubber strap 21. There is almost no risk of pulling out from the string attaching short hole 15 by force. When it is desired to remove the second head-mounted rubber cord 21 from the string-attaching short hole 17, the second head-mounted rubber cord 21 is connected to the string-attaching short hole, contrary to the above-described attachment. You can pull it out from 17.

つぎに、頭部装着用伸縮包帯２４および第２の頭部装着用伸縮包帯のうちの例えば頭部装着用伸縮包帯２４をマスク本体６の右側端部１１ｂの包帯取付け用長孔２２、２３のうちの例えば包帯取付け用長孔２３に取付ける場合の取付け操作を、図５〜図７を参照して説明する。なお、頭部装着用伸縮包帯２４をマスク本体６の左側端部１１ａの包帯取付け用長孔２３に取付ける場合の取付け操作や、頭部装着用伸縮包帯２４をマスク本体６の左側端部１１ａまたは右側端部１１ｂの包帯取付け用長孔２２のうちのいずれか１つに取付ける場合の取付け操作や、第２の頭部装着用伸縮包帯を左側端部１１ａまたは右側端部１１ｂの包帯取付け用長孔２２、２３のうちのいずれか１つに取付ける場合の取付け操作も、つぎに説明する取付け操作と実質的に同一の取付け操作を行えばよい。 Next, of the head-mounted stretch bandage 24 and the second head-mounted stretch bandage, for example, the head-mounted stretch bandage 24 is connected to the bandage attaching elongated holes 22, 23 of the right end 11 b of the mask body 6. The attachment operation in the case of attaching to the long hole 23 for attaching a bandage, for example, will be described with reference to FIGS. It should be noted that when the head-mounted elastic bandage 24 is attached to the bandage attaching long hole 23 of the left end 11a of the mask body 6, the head-mounted elastic bandage 24 is attached to the left end 11a of the mask body 6 or The attachment operation when attaching to any one of the bandage attachment long holes 22 of the right end portion 11b, or the bandage attachment length of the second end wearing elastic bandage to the left end portion 11a or the right end portion 11b The attachment operation when attaching to any one of the holes 22 and 23 may be performed in substantially the same manner as the attachment operation described below.

頭部装着用伸縮性包帯２４をマスク本体６の右側端部１１ｂの包帯取付け用長孔２３に取付けるに際しては、図５に示す長手状の頭部装着用伸縮包帯２４のいずれか一方の端部６１のいずれか一方の角部６２を、図６に示すように、マスク本体６の右側端部１１ｂの包帯取付け用長孔２３にこの包帯取付け用長孔２３の本来の下側面から差し込んで貫通させる。そして、このようにして貫通した上記角部６２の側を、右側端部１１ｂに対して、この右側端部１１ｂの本来の上側面の側から引っ張り出す。この結果、角部６２と、この角部６２に繋がっている長手状の頭部装着用伸縮包帯２４の中間部分６３の先端側の一部分６４とが、図７に示すように、包帯取付け用長孔２３をそれぞれ貫通する。この場合、中間部分６３のうちの上記先端側の部分６４に連なる部分が、くびれ部６５として、包帯取付け用長孔２３内において右側端部分１１ｂのうちのこの包帯取付け用長孔２３の外周囲の部分によって支持される。なお、頭部装着用伸縮包帯２４は、既述のように、弾性体として構成されている。したがって、マスク本体６を頭部２６に装着するときや、この装着の状態になっているときに、頭部装着用伸縮包帯２４がこの頭部装着用伸縮包帯２４に加わる力によって包帯取付け用長孔２３から抜け出るおそれは、ほとんどない。なお、頭部装着用伸縮包帯２４を包帯取付け用長孔２３から取外したいときには、上述の取付けの場合とは逆に、頭部装着用伸縮包帯２４を包帯取付け用長孔２３から引っ張り出せばよい。 When the head-mounted stretch bandage 24 is attached to the bandage-attaching elongated hole 23 of the right end 11b of the mask body 6, one end of the elongated head-mounted stretch bandage 24 shown in FIG. As shown in FIG. 6, one of the corner portions 62 of 61 is inserted into the bandage attachment long hole 23 of the right end portion 11b of the mask body 6 from the original lower surface of the bandage attachment long hole 23 and penetrates. Let And the side of the said corner | angular part 62 penetrated in this way is pulled out from the original upper surface side of this right end part 11b with respect to the right end part 11b. As a result, as shown in FIG. 7, the corner portion 62 and the portion 64 on the distal end side of the intermediate portion 63 of the longitudinal head-mounting elastic bandage 24 connected to the corner portion 62 have a bandage attachment length. The holes 23 are respectively penetrated. In this case, a portion of the intermediate portion 63 that is continuous with the tip-side portion 64 serves as a constricted portion 65 in the bandage attachment long hole 23 and the outer periphery of the bandage attachment long hole 23 in the right end portion 11b. Supported by the part. Note that the head-mounted stretch bandage 24 is configured as an elastic body as described above. Therefore, when the mask main body 6 is mounted on the head 26 or in this mounted state, the bandage attachment length is increased by the force applied by the head-mounted elastic bandage 24 to the head-mounted elastic bandage 24. There is almost no risk of getting out of the hole 23. When the head-mounted elastic bandage 24 is to be removed from the bandage attaching long hole 23, the head-mounted elastic bandage 24 may be pulled out of the bandage attaching long hole 23, contrary to the above-described attachment. .

以上、本発明の一実施例について詳細に説明したが、本発明は、この実施例に限定されるものではなく、特許請求の範囲に記載されている発明の趣旨に基づいて各種の変更および修正を施されることが可能である。 As mentioned above, although one Example of this invention was described in detail, this invention is not limited to this Example, Based on the meaning of the invention described in the claim, various changes and corrections Can be applied.

例えば、上述の実施例においては、左右一対の側端部１１ａ、１１ｂにそれぞれ沿って延在している上下一対の包帯取付け用長孔２２、２３のそれぞれをほぼ直線形状に構成している。しかし、上下一対の包帯取付け用長孔２２、２３のそれぞれは、ほぼ直線形状である必要は必ずしもなく、例えば、左右一対の側端部１１ａ、１１ｂにそれぞれ沿って多少湾曲した形状であってもよい。 For example, in the above-described embodiment, each of the pair of upper and lower bandage attaching long holes 22 and 23 extending along the pair of left and right side end portions 11a and 11b is formed in a substantially linear shape. However, each of the pair of upper and lower bandage attachment long holes 22 and 23 does not necessarily have a substantially straight shape, and may be, for example, a shape slightly curved along the pair of left and right side end portions 11a and 11b. Good.

また、上述の実施例においては、左右一対の包帯取付け用長孔２２の上方には、包帯取付け用長孔を配設しないようにした。しかし、左右一対の包帯取付け用長孔２２の上方において、外周部分１１の左側端部１１ａおよび右側端部１１ｂのそれぞれに左右一対の第３の包帯取付け用長孔を配設するようにしてもよい。 In the above-described embodiment, the bandage attaching long hole is not disposed above the pair of left and right bandage attaching long holes 22. However, a pair of left and right third bandage attachment elongated holes may be disposed above the pair of left and right bandage attachment long holes 22 at the left end portion 11a and the right end portion 11b of the outer peripheral portion 11, respectively. Good.

また、上述の実施例においては、左右一対の紐取付け用短孔１５を左右一対の孔形成用突出部１３ａ、１３ｂにそれぞれ配設するとともに、左右一対の包帯取付け用長孔２２を、左右一対の紐取付け用短孔１５にそれぞれほぼ対向して隣接するように、左右一対の側端部１１ａ、１１ｂに配設した。しかし、これとは逆に、左右一対の包帯取付け用長孔２２を左右一対の孔形成用突出部１３ａ、１３ｂにそれぞれ配設するとともに、左右一対の紐取付け用短孔１５を左右一対の包帯取付け用長孔２２にそれぞれほぼ対向して隣接するように、左右一対の側端部１１ａ、１１ｂに配設してもよい。ただし、左右一対の孔形成用突出部１３ａ、１３ｂの強度の点では、上述の実施例（すなわち、上記前者）の場合の方が上記後者の場合に較べて優れている。 In the above-described embodiment, the pair of left and right string attachment short holes 15 are disposed in the pair of left and right hole forming protrusions 13a and 13b, respectively, and the pair of left and right bandage attachment long holes 22 are provided in the pair of left and right bandages. The pair of left and right side end portions 11a and 11b are arranged so as to be substantially opposed to and adjacent to the string attaching short holes 15, respectively. However, conversely, a pair of left and right bandage attachment long holes 22 are disposed in the pair of left and right hole forming protrusions 13a and 13b, respectively, and a pair of left and right string attachment short holes 15 are provided as a pair of left and right bandages. You may arrange | position in a pair of right-and-left side edge parts 11a and 11b so that it may oppose and adjoin to the attachment long hole 22, respectively. However, in the point of strength of the pair of left and right hole forming protrusions 13a and 13b, the above-described embodiment (ie, the former) is superior to the latter case.

さらに、上述の実施例においては、第１および第２の頭部装着用ゴム紐１４、２１のそれぞれの両端部を左右両側の紐取付け用短孔１５〜１８のうちのいずれか１つに取付けるようにした。しかし、頭部装着用ゴム紐１４、２１がマスク着用者２の耳６６に耳掛け方式で取付けられるようにしてもよい。この場合には、第１および第２の頭部装着用ゴム紐１４、２１が左側のゴム紐と右側のゴム紐とからそれぞれ構成され、これら左右両側のゴム紐の中間部分のそれぞれがほぼループ形状の耳掛け部を有していればよい。また、このような左側のゴム紐と右側のゴム紐とのそれぞれの両端部が左側または右側の紐取付け用短孔１５〜１８のうちのいずれか２つに取付けられることによって、上記左側のゴム紐と上記右側のゴム紐とのそれぞれの中間部分を耳６６に耳掛け方式で取り付けるようにしてもよい。 Furthermore, in the above-described embodiment, both end portions of the first and second head-mounted rubber cords 14 and 21 are attached to any one of the left and right cord attaching short holes 15 to 18. I did it. However, the head-mounted rubber straps 14 and 21 may be attached to the ear 66 of the mask wearer 2 by an ear hook method. In this case, the first and second head-mounted rubber cords 14 and 21 are each composed of a left rubber cord and a right rubber cord, and the middle portions of the left and right rubber cords are substantially looped. What is necessary is just to have an ear hook part of a shape. Further, the left rubber cord is attached to any two of the left or right cord attaching short holes 15 to 18 by attaching both ends of the left rubber cord and the right rubber cord. You may make it attach each middle part of a string and the said right rubber string to the ear 66 by an ear hook system.

１酸素マスク装置（ガス類供給用マスク装置）
２マスク装着者
３顔面
６マスク本体
１１外周部分
１１ａ左側の端部
１１ｂ右側の端部
１３ａ左側の孔形成用突出部
１３ｂ右側の孔形成用突出部
１５紐取付け用短孔
１６紐取付け用短孔
１７紐取付け用短孔
１８紐取付け用短孔
２２包帯取付け用長孔（帯取付け用長孔）
２３包帯取付け用長孔（帯取付け用長孔）
２６頭部
４３ガス類導入用の開口
４７ガス類導入空間
Ｌ１長さ
Ｌ２長さ
Ｌ３下底の長さ（基底の長さ）
Ｌ４突出高さ
Ｌ６幅
Ｌ７最大長さ

1 Oxygen mask device (mask device for gas supply)
2 Mask wearer 3 Face 6 Mask body 11 Outer peripheral part 11a Left end 11b Right end 13a Left hole forming protrusion 13b Right hole forming protrusion 15 String attachment short hole 16 String attachment short hole 17 Short hole for string attachment 18 Short hole for string attachment 22 Long hole for bandage attachment (long hole for band attachment)
23 Long hole for bandage attachment (long hole for band attachment)
26 Head 43 Gas opening 47 Gas introduction space L1 Length L2 Length L3 Lower bottom length (base length)
L4 Projection height L6 Width L7 Maximum length

Claims

マスク装着者の頭部に装着されることができるマスク本体を備え、
上記頭部に装着されている上記マスク本体と上記マスク装着者の顔面との間に存在するガス類導入空間にガス類を導入することができるように構成されているガス類供給用マスク装置において、
紐取付け用短孔と帯取付け用長孔とのそれぞれが、上記マスク本体の外周部分のうちの左側の端部と右側の端部とのそれぞれに配設されていることを特徴とするガス類供給用マスク装置。 It has a mask body that can be worn on the head of the mask wearer,
In a gas supply mask device configured to be able to introduce gas into a gas introduction space existing between the mask body mounted on the head and the face of the mask wearer ,
Each of the string attaching short hole and the band attaching long hole is disposed at each of the left end and the right end of the outer peripheral portion of the mask body. Supply mask device.

上記外周部分のうちの上記左側端部と上記右側端部とのそれぞれがほぼ平らな面に構成されていることを特徴とする請求項１に記載のガス類供給用マスク装置。 2. The gas supply mask device according to claim 1, wherein each of the left end portion and the right end portion of the outer peripheral portion is configured to have a substantially flat surface.

左側の孔形成用突出部と右側の孔形成用突出部とのそれぞれが、上記外周部分のうちの上記左側端部と上記右側端部とのそれぞれのほぼ中間部分にほぼ左右両外側に向って突出するように配設され、
上記紐取付け用短孔と上記帯取付け用長孔とのうちのいずれか一方が、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれに配設され、
上記紐取付け用短孔と上記帯取付け用長孔とのうちの他方が、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれに隣接するように、上記外周部分のうちの上記左側端部と上記右側端部とにそれぞれ配設されていることを特徴とする請求項１または２に記載のガス類供給用マスク装置。 Each of the left hole forming protrusion and the right hole forming protrusion is directed substantially to the left and right outer sides at a substantially intermediate portion between the left end and the right end of the outer peripheral portion. Arranged to protrude,
Either one of the string attaching short hole and the band attaching long hole is disposed on each of the left hole forming protrusion and the right hole forming protrusion,
Of the outer peripheral portions, the other one of the string attaching short hole and the band attaching long hole is adjacent to the left hole forming protrusion and the right hole forming protrusion. The gas supply mask device according to claim 1, wherein the gas supply mask device is provided at each of the left end and the right end.

上記紐取付け用短孔が、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれに配設され、
上記帯取付け用長孔が、上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれに隣接するように、上記外周部分のうちの上記左側端部と上記右側端部とにそれぞれ配設されていることを特徴とする請求項３に記載のガス類供給用マスク装置。 The string attaching short hole is disposed in each of the left hole forming protrusion and the right hole forming protrusion,
Each of the left end and the right end of the outer peripheral portion is adjacent to the left hole forming protrusion and the right hole forming protrusion, respectively. The gas supply mask device according to claim 3, wherein the gas supply mask device is provided.

上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれが、上記左側端部と上記右側端部とのそれぞれにほぼ面一になるように一体成形されていることを特徴とする請求項３または４に記載のガス類供給用マスク装置。 Each of the left hole forming protrusion and the right hole forming protrusion is integrally formed to be substantially flush with each of the left end and the right end. The gas supply mask device according to claim 3 or 4.

上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれが、ほぼ台形状、ほぼ長方形状、ほぼ半円形状、ほぼ半楕円形状またはほぼ半長円形状に構成されていることを特徴とする請求項３、４または５に記載のガス類供給用マスク装置。 Each of the left hole forming protrusion and the right hole forming protrusion has a substantially trapezoidal shape, a substantially rectangular shape, a substantially semicircular shape, a substantially semielliptical shape, or a substantially semielliptical shape. 6. The gas supply mask device according to claim 3, 4 or 5.

上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれが、ほぼ左右両外側に向って先細りになるように突出しているほぼ等脚台形状に構成されていることを特徴とする請求項６に記載のガス類供給用マスク装置。 Each of the left hole forming protrusion and the right hole forming protrusion is configured in a substantially isosceles trapezoidal shape that protrudes so as to taper toward both the left and right outer sides. The gas supply mask apparatus according to claim 6.

上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれの基底の長さが、１０．５〜１７．５ｍｍの範囲であり、
上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれの突出高さが、４．５〜７．５ｍｍの範囲であり、
上記左側孔形成用突出部と上記右側孔形成用突出部とのそれぞれの面積が、４５〜７５ｍｍ^２の範囲であることを特徴とする請求項６または７に記載のガス類供給用マスク装置。 The base length of each of the left hole forming protrusion and the right hole forming protrusion is in the range of 10.5 to 17.5 mm.
Each protrusion height of the left-side hole forming protrusion and the right-side hole forming protrusion is in the range of 4.5 to 7.5 mm,
8. The gas supply mask device according to claim 6, wherein an area of each of the left hole forming protrusion and the right hole forming protrusion is in a range of 45 to 75 mm ² .

上記マスク本体の上下方向における長さに対する、上記マスク本体の上端から左右一対の孔形成用突出部のそれぞれのほぼ中心までの上下方向における長さの比が、０．３８〜０．４８の範囲であることを特徴とする請求項３〜８のうちのいずれか１つに記載のガス類供給用マスク装置。 The ratio of the length in the vertical direction from the upper end of the mask body to the approximate center of each of the pair of left and right hole forming projections with respect to the length in the vertical direction of the mask body is in the range of 0.38 to 0.48. The gas supply mask device according to claim 3, wherein the gas supply mask device is a gas supply mask device.

上記紐取付け用短孔のそれぞれの平面的に見た最大長さが、１．５〜２．５ｍｍの範囲であり、
上記紐取付け用短孔のそれぞれの平面的に見た面積が、２．３５〜３．９５ｍｍ^２の範囲であることを特徴とする請求項１〜９のうちのいずれか１つに記載のガス類供給用マスク装置。 The maximum length of each of the string attachment short holes seen in a plane is in the range of 1.5 to 2.5 mm,
10. The gas according to claim 1, wherein an area of each of the string attachment short holes when viewed in plan is in a range of 2.35 to 3.95 mm ^2. Mask device for supply.

上記帯取付け用長孔のそれぞれの平面的に見た幅が、０．７５〜１．２５ｍｍの範囲であり、
上記帯取付け用長孔のそれぞれの平面的に見た最大長さが、７．５〜１２．５ｍｍの範囲であり、
上記帯取付け用長孔のそれぞれの平面的に見た面積が、６．８〜１１．４ｍｍ^２の範囲であることを特徴とする請求項１〜１０のうちのいずれか１つに記載のガス類供給用マスク装置。

The width in plan view of each of the band mounting elongated holes is in the range of 0.75 to 1.25 mm,
The maximum length of each of the elongated holes for attaching the band seen in a plane is in the range of 7.5 to 12.5 mm,
11. The gas according to claim 1, wherein an area of each of the band attachment long holes when viewed in plan is in a range of 6.8 to 11.4 mm ^2. Mask device for supply.