JPS6317488Y2 - - Google Patents
Info
- Publication number
- JPS6317488Y2 JPS6317488Y2 JP1981172653U JP17265381U JPS6317488Y2 JP S6317488 Y2 JPS6317488 Y2 JP S6317488Y2 JP 1981172653 U JP1981172653 U JP 1981172653U JP 17265381 U JP17265381 U JP 17265381U JP S6317488 Y2 JPS6317488 Y2 JP S6317488Y2
- Authority
- JP
- Japan
- Prior art keywords
- intake
- fitting
- cylinder
- tube
- mask
- 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.)
- Expired
Links
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 238000012856 packing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
- Closures For Containers (AREA)
- Insertion Pins And Rivets (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Description
【考案の詳細な説明】
本考案は、マスクにおける吸気ろ過体の取付構
造に関する。[Detailed Description of the Invention] The present invention relates to a mounting structure for an intake filter in a mask.
本考案の目的は、吸気ろ過体の取付け取外しが
簡単にできるところのマスクを提供することにあ
る。 An object of the present invention is to provide a mask in which the intake filter can be easily attached and detached.
以下、本考案の実施例を説明する。 Examples of the present invention will be described below.
第１図は本考案のマスクの正面図、第２図は第
１図に示すマスクの要部切断拡大側面図、第３図
は吸気ろ過体をマスクより取外したところの第２
図同様の図面、第４図は第２図のＡ−Ａ線切断部
分拡大図である。 Figure 1 is a front view of the mask of the present invention, Figure 2 is a cutaway enlarged side view of the main parts of the mask shown in Figure 1, and Figure 3 is a second view of the mask with the intake filter removed from the mask.
FIG. 4 is a partially enlarged view taken along the line A--A in FIG. 2.
吸気ろ過体１は、フロントカバー２と嵌入筒３
と、両者を連結する複数の連結片４と、フロント
カバー２と協同して吸気室を構成するようにフロ
ントカバー２と嵌入筒３との間に配設されたシー
ト状のろ過材５とを有する。ろ過材５の周縁６は
フロントカバー２の裏面周縁に溶着・接着などに
より気密に取付けられている。嵌入筒３はろ過材
５の嵌入筒嵌合口に嵌合している。嵌入筒３の内
端縁にはフランジ７が形成され、外端部外周には
放射方向に突出する１対の係合突起８，９が形成
されている。 The intake filter 1 includes a front cover 2 and a fitting tube 3.
, a plurality of connecting pieces 4 that connect the two, and a sheet-shaped filter material 5 that is disposed between the front cover 2 and the fitting tube 3 so as to cooperate with the front cover 2 to configure an intake chamber. have The periphery 6 of the filter material 5 is airtightly attached to the periphery of the back surface of the front cover 2 by welding, adhesion, or the like. The fitting cylinder 3 is fitted into the fitting opening of the filter medium 5. A flange 7 is formed on the inner edge of the fitting tube 3, and a pair of engagement protrusions 8, 9 are formed on the outer periphery of the outer end.
マスク本体１１には嵌入筒３を嵌入する吸気筒
１２が一体に形成されている。吸気筒１２の内周
面には嵌入筒３の係合突起８，９に対応して係合
凹所１３，１４が設けられ、嵌入筒３を吸気筒１
２に嵌入した時には、係合突起８，９が係合凹所
１３，１４にそれぞれ係合して、両者が緊密に結
合されるようになつている。各係合凹所１３，１
４には、同一円周方向に向けてその底面から順次
せり上り吸気筒１２の内周面に接続する円周方向
傾斜面１５，１６が設けられている。第２図に示
す吸気ろ過体１の取付け時においては、ろ過材５
の嵌入筒嵌合口口縁は、フランジ７と吸気筒１２
の端面により押圧挟持され、嵌入筒３と吸気筒１
２間の気密保持用パツキングの役目を果してい
る。なお、図中１７は吸気筒１２に取付けられた
吸気弁、１８は排気弁、１９はクツシヨンであ
る。 The mask body 11 is integrally formed with an intake cylinder 12 into which the fitting cylinder 3 is fitted. Engagement recesses 13 and 14 are provided on the inner peripheral surface of the intake cylinder 12 in correspondence with the engagement protrusions 8 and 9 of the fitting cylinder 3, and the fitting cylinder 3 is connected to the intake cylinder 1.
2, the engaging protrusions 8 and 9 engage with the engaging recesses 13 and 14, respectively, so that the two are tightly coupled. Each engagement recess 13,1
4 is provided with circumferentially inclined surfaces 15 and 16 that successively rise from the bottom surface in the same circumferential direction and connect to the inner circumferential surface of the intake cylinder 12. When installing the intake filter 1 shown in FIG.
The rim of the fitting opening of the fitting tube is connected to the flange 7 and the intake pipe 12.
are pressed and held by the end faces of the fitting cylinder 3 and the intake cylinder 1.
It plays the role of packing to maintain airtightness between the two. In the figure, 17 is an intake valve attached to the intake cylinder 12, 18 is an exhaust valve, and 19 is a cushion.
フロントカバー２、嵌入筒３、連結片４、マス
ク本体１１は、通常、合成樹脂材で適宜成形され
るが、必要に応じ他の材料が用いられることはも
ちろんである。 The front cover 2, the fitting tube 3, the connecting piece 4, and the mask body 11 are usually appropriately molded from a synthetic resin material, but it goes without saying that other materials may be used as necessary.
吸気ろ過体１のマスクへの取付け取外しは次の
ようにしてなされる。フロントカバー２を把持し
て吸気ろ過体１をもち、その嵌入筒３の係合突起
８，９がマスクの吸気筒１２の係合凹所１３，１
４に対応するようにして嵌入筒３をマスクの吸気
筒１２に挿入すれば、吸気筒３の係合突起８，９
は吸気筒１２の内壁に押されて弾性的に内方に後
退した状態で吸気筒１２の係合凹所１３，１４に
達し、そこで係合凹所１３，１４に係合し、嵌入
筒３は吸気筒１２に対してしつかりと結合状態に
保持される。吸気ろ過体１を取外す際には、吸気
ろ過体１をマスクに対して第１図の矢印方向に少
し回動させ、ついで吸気ろ過体１をマスクから引
離せばよい。吸気ろ過体１の回動により、嵌入筒
３の係合突起８，９は、吸気筒１２の係合凹所１
３，１４の円周方向傾斜面１５，１６に押圧され
て後退し係合凹所１３，１４から脱出するので、
嵌入筒３は吸気筒１２から容易に抜け出すことが
できる。 The intake filter 1 is attached to and detached from the mask as follows. Hold the front cover 2 and hold the intake filter 1, and the engagement protrusions 8 and 9 of the fitting cylinder 3 are engaged with the engagement recesses 13 and 1 of the intake cylinder 12 of the mask.
If the fitting tube 3 is inserted into the intake tube 12 of the mask as shown in FIG.
are pressed by the inner wall of the intake cylinder 12 and elastically retracted inward to reach the engagement recesses 13 and 14 of the intake cylinder 12, where they engage with the engagement recesses 13 and 14, and the fitting cylinder 3 is held firmly connected to the intake cylinder 12. When removing the intake filter 1, the intake filter 1 may be slightly rotated relative to the mask in the direction of the arrow in FIG. 1, and then the intake filter 1 may be pulled away from the mask. Due to the rotation of the intake filter 1, the engagement protrusions 8 and 9 of the fitting cylinder 3 are moved into the engagement recess 1 of the intake cylinder 12.
3 and 14, retreats and escapes from the engagement recesses 13 and 14,
The fitting cylinder 3 can be easily removed from the intake cylinder 12.
以上に説明の実施例においては、嵌入筒３の係
合突起８，９が弾性変形するようにつくられてい
るが、吸気筒１２が弾性変形するようにしてもよ
い。また、嵌入筒３の係合突起と吸気筒１２の両
者が少しづつ弾性変形するようにしてもよい。 In the embodiment described above, the engaging protrusions 8 and 9 of the fitting cylinder 3 are made to be elastically deformed, but the intake cylinder 12 may also be made to be elastically deformed. Further, both the engagement protrusion of the fitting cylinder 3 and the intake cylinder 12 may be elastically deformed little by little.
吸気ろ過体１は、そのフロントカバー２に１個
又は複数個の孔をあけ、フロントカバー２の前面
にもろ過材を取付けるようにしてもよい。またろ
過材の吸気筒嵌合口口縁を溶着・接着などにより
吸気筒３の外周に取付け、吸気筒３と受筒１２間
の気密はパツキングにより保持するようにしても
よい。 The intake filter 1 may have one or more holes in its front cover 2, and a filter material may also be attached to the front surface of the front cover 2. Alternatively, the rim of the suction cylinder fitting opening of the filter material may be attached to the outer periphery of the suction cylinder 3 by welding, adhesion, etc., and the airtightness between the suction cylinder 3 and the receiving cylinder 12 may be maintained by packing.
第１図は本考案のマスクの正面図、第２図は第
１図に示すマスクの要部切断拡大側面図、第３図
は吸気ろ過体とマスクを分離したところを示す第
２図同様の要部切断側面図、第４図は第２図のＡ
−Ａ線切断部分拡大図である。
１……吸気ろ過体、２……フロントカバー、３
……嵌入筒、５……ろ過材、８，９……係合突
起、１１……マスク本体、１２……吸気筒、１
３，１４……係合凹所、１５，１６……円周方向
傾斜面。
Fig. 1 is a front view of the mask of the present invention, Fig. 2 is a cutaway enlarged side view of the main part of the mask shown in Fig. 1, and Fig. 3 is similar to Fig. 2, showing the inhalation filter and the mask separated. Main part cutaway side view, Figure 4 is A in Figure 2
- It is a partial enlarged view cut along the A line. 1...Intake filter, 2...Front cover, 3
... Fitting cylinder, 5 ... Filter material, 8, 9 ... Engagement protrusion, 11 ... Mask body, 12 ... Intake cylinder, 1
3, 14... Engagement recess, 15, 16... Circumferential direction inclined surface.
Claims (1)
間隔をおいて突出形成した複数個の係合突起が、
マスク本体の吸気筒１２の対応内周面に設けた係
合凹所に係合して、嵌入筒３が吸気筒１２内の嵌
合位置に緊密に保持され、また、吸気筒１２の各
係合凹所には、同一の円周方向に向けて、その底
面から吸気筒１２の内周面にいたる係合解除用の
円周方向傾斜面１５，１６が設けられ、そして、
嵌入筒３と吸気筒１２との嵌脱に際し、嵌入筒３
の係合突起と吸気筒１２の両者又はいずれか一方
が弾性変形してその嵌脱が行なわれるように構成
されていることを特徴とする、マスクにおける吸
気ろ過体の取付構造。 A plurality of engagement protrusions are formed protruding from the outer peripheral surface of the fitting tube 3 of the intake filter 1 at intervals in the circumferential direction.
The fitting tube 3 is tightly held in the fitting position within the intake tube 12 by engaging with the engagement recess provided on the corresponding inner circumferential surface of the intake tube 12 of the mask body, and each engagement of the intake tube 12 is held tightly. The mating recess is provided with circumferential inclined surfaces 15 and 16 for disengaging from the bottom surface thereof toward the inner circumferential surface of the intake pipe 12 in the same circumferential direction, and
When fitting and disengaging the fitting cylinder 3 and the intake cylinder 12, the fitting cylinder 3
A mounting structure for an intake air filter in a mask, characterized in that both or either one of the engaging protrusion and the intake pipe 12 is elastically deformed to be fitted and removed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17265381U JPS5898940U (en) | 1981-11-21 | 1981-11-21 | Mounting structure of intake filter in mask |
| US06/437,474 US4501272A (en) | 1981-10-30 | 1982-10-28 | Mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17265381U JPS5898940U (en) | 1981-11-21 | 1981-11-21 | Mounting structure of intake filter in mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5898940U JPS5898940U (en) | 1983-07-05 |
| JPS6317488Y2 true JPS6317488Y2 (en) | 1988-05-18 |
Family
ID=30102252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17265381U Granted JPS5898940U (en) | 1981-10-30 | 1981-11-21 | Mounting structure of intake filter in mask |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5898940U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4212543Y1 (en) * | 1965-11-19 | 1967-07-14 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50110094U (en) * | 1974-02-15 | 1975-09-08 | ||
| JPS55105611U (en) * | 1979-01-18 | 1980-07-23 |
-
1981
- 1981-11-21 JP JP17265381U patent/JPS5898940U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4212543Y1 (en) * | 1965-11-19 | 1967-07-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5898940U (en) | 1983-07-05 |
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