JPH0244766Y2 - - Google Patents
Info
- Publication number
- JPH0244766Y2 JPH0244766Y2 JP1983137210U JP13721083U JPH0244766Y2 JP H0244766 Y2 JPH0244766 Y2 JP H0244766Y2 JP 1983137210 U JP1983137210 U JP 1983137210U JP 13721083 U JP13721083 U JP 13721083U JP H0244766 Y2 JPH0244766 Y2 JP H0244766Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve cover
- protrusion
- exhalation valve
- mounting ring
- valve
- 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
- 238000001125 extrusion Methods 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本案は防塵マスク用呼気弁カバーの取付装置に
関する。[Detailed Description of the Invention] Industrial Application Field The present invention relates to an attachment device for an exhalation valve cover for a dust mask.
従来の技術
従来、マスク用呼気弁の弁カバーは、ゴム製の
ものが通常用いられ、また、その呼気弁を保護す
る弁カバーはねじ立をなして呼気弁取付環枠には
螺合して固着するように構成している。Conventional technology Conventionally, the valve cover of an exhalation valve for a mask is usually made of rubber, and the valve cover that protects the exhalation valve is threaded onto the exhalation valve mounting ring frame. It is configured to be fixed.
考案が解決しようとする課題
従来のマスク用呼気弁が前述のようにゴム製で
あるため、一定期間の経過と共に、定期的に清掃
あるいは交換をする必要があるが、前述のように
呼気弁取付環枠及び弁カバーには一般に合成樹脂
にて形成し、これを前述のように螺合により取付
けているため、使用中に緊着し、呼気弁の清掃あ
るいは交換のために、その弁カバーを取り外す際
のねじ戻しが極めてかたく、簡単に弁カバーを取
外すことができない不便があつた。Problems that the invention aims to solve As the conventional exhalation valve for masks is made of rubber as mentioned above, it is necessary to periodically clean or replace it after a certain period of time. The ring frame and valve cover are generally made of synthetic resin and are attached by screwing as described above, so they stick together during use, and the valve cover cannot be removed to clean or replace the exhalation valve. It was inconvenient that the valve cover could not be easily removed because the screws were extremely difficult to unscrew.
課題を解決するための手段
マスク本体に取付ける呼気弁取付環枠に、弁カ
バーを着脱自由に取付けるようにした呼気弁カバ
ー装置に於て、呼気弁取付環枠の嵌合突縁部に係
合用環状凸条を設け、これと係合する囲繞凹溝を
弁カバーの基端に設け、前記弁カバーの接合端面
と当接する前記呼気弁取付環枠の接合周縁の適所
に、外方に突出し、かつすくいあげ傾斜縁を前縁
に有する押出し突起片を設け、さらに前記弁カバ
ーの縁部適所に、呼気弁取付環枠に設けた前記押
出し突起片と衝突する張り出し突片を設け、弁カ
バーを一方へ回動させると、その張り出し突片が
呼気弁取付環枠の押出し突起片に衝突し、すくい
あげ傾斜縁に乗上げ、その乗上げ箇所から呼気弁
取付環枠の係合用環状凸条が弁カバーの囲繞凹溝
の係合から解除され、弁カバーが外れることを特
徴とする、防塵マスク用呼気弁カバーの取付装置
にある。Means for Solving the Problem In an exhalation valve cover device in which a valve cover is detachably attached to an exhalation valve attachment frame attached to a mask body, a valve cover for engagement with a fitting protrusion of the exhalation valve attachment frame is provided. providing an annular protrusion, and providing a surrounding concave groove that engages with the protrusion at the base end of the valve cover, protruding outward at a suitable position on the joint periphery of the exhalation valve mounting ring frame that abuts the joint end surface of the valve cover; An extruded protrusion piece having a scooping sloped edge on its front edge is provided, and an overhanging protrusion piece that collides with the extruded protrusion piece provided on the exhalation valve mounting ring frame is provided at an appropriate position on the edge of the valve cover, so that the valve cover can be held on one side. When rotated, the projecting piece collides with the extruding projecting piece of the exhalation valve mounting frame, scoops up and rides on the slanted edge, and from where it rides up, the engagement annular protrusion of the exhalation valve mounting ring moves to the valve cover. The device for attaching an exhalation valve cover for a dust mask is characterized in that the valve cover is removed from engagement with the surrounding groove.
作 用
本案は前述のように構成されるから弁カバー３
は、呼気弁取付環枠２に対いして押し込むと、簡
単に係合し、軸まわりに可動に取付けることがで
きる。次に呼気弁の清掃あるいは交換などで弁カ
バー３を取り外すとき、一方に回動させると、弁
カバー３の張り出し突片９が呼気弁取付環枠２の
押し出し突起片８に衝突し、さらに弁カバー３を
回動させると、張り出し突片９は押し出し突起片
８のすくいあげ傾斜縁８ａに乗り上げ、その部分
から強制的に外側にへ押し出され、よつて弁カバ
ー３は張り出し突片９の接続部分から容易には外
れるものである。Effect Since the main proposal is constructed as described above, the valve cover 3
When pushed into the exhalation valve mounting ring frame 2, it is easily engaged and can be mounted movably around the axis. Next, when removing the valve cover 3 for cleaning or replacing the exhalation valve, if the valve cover 3 is rotated in one direction, the protruding piece 9 of the valve cover 3 collides with the extruding protruding piece 8 of the exhalation valve mounting ring frame 2, and the valve cover 3 is rotated in one direction. When the cover 3 is rotated, the overhanging protrusion 9 rides on the sloped edge 8a of the extrusion protrusion 8 and is forcibly pushed outward from that part, so that the valve cover 3 is connected to the overhanging protrusion 9. It can be easily removed from the
実施例
以下、本案を図面に示す実施例によつて説明す
ると、呼気弁１を装備している呼気弁取付環枠２
と、呼気弁を保護する弁カバー３は夫々従来のこ
の種弁環枠と同様適宜の合成樹脂にて成形し、弁
カバー３を係合するために設けた呼気弁取付環枠
２の嵌合突縁部４の外周に環状凸条５を設け、弁
カバーの周縁部４ａの内側に、前記環状凸条５と
係合する囲繞凹溝６を設け、弁カバー３の接合端
面３ａと当接する呼気弁取付環枠２の接合部に臨
む接合周縁７の適所に、外方に突出し、かつ両側
前縁がすくいあげ傾斜縁８ａに設けられる押出し
突起片８を設け、さらに弁カバー３の縁部適所に
前記押出し突起片８と衝突する張り出し突片９を
設けたものである。Embodiment The present invention will be explained below with reference to an embodiment shown in the drawings.Exhalation valve mounting ring frame 2 equipped with exhalation valve 1
The valve cover 3 that protects the exhalation valve is molded from an appropriate synthetic resin, similar to conventional valve ring frames of this type, and the exhalation valve mounting ring frame 2 provided to engage the valve cover 3 is fitted. An annular ridge 5 is provided on the outer periphery of the projecting edge 4, and a surrounding concave groove 6 that engages with the annular ridge 5 is provided on the inside of the peripheral edge 4a of the valve cover, and comes into contact with the joint end surface 3a of the valve cover 3. An extruded protrusion piece 8 is provided at a suitable position on the joint peripheral edge 7 facing the joint part of the exhalation valve mounting ring frame 2, and which protrudes outward and whose front edges on both sides are scooped up and provided on the sloped edge 8a. An overhanging protrusion 9 that collides with the extrusion protrusion 8 is provided on the.
本案は上記のように構成されているから、呼気
弁取付環枠２と、弁カバー３とを分離すれば、第
２図に示すよう二つに分離し、弁カバー３を呼気
弁取付環枠２に圧接接合すれば、呼気弁取付環枠
に設けた環状凸条５が弁カバーの縁部内側に設け
た囲繞凹溝６に係合して弁カバーと、呼気弁取付
環枠２とを一体的に接合し、両者は勝手に分離す
る憂いは全くない。 Since the present invention is constructed as described above, if the exhalation valve mounting ring frame 2 and the valve cover 3 are separated, the valve cover 3 can be separated into two parts as shown in FIG. 2, the annular protrusion 5 provided on the exhalation valve mounting frame 2 engages with the surrounding groove 6 provided on the inside edge of the valve cover, thereby connecting the valve cover and the exhalation valve mounting frame 2. They are integrally joined, and there is no need to worry about them separating at will.
次に、呼気弁１の取換、あるいは清掃のため
に、このように接合した弁カバー３を呼気弁取付
環枠２から分離せんとする場合は、弁カバー３を
摘み、接合状態のまま右、或は左方向に回動すれ
ば、弁カバー３は容易に回動し、張り出し突片９
が押出し突起片８の位置にくると、突片９は押出
し突起片８に衝突し、張り出し突片９はすくいあ
げ傾斜縁８ａに乗上げ、押し離されるような作用
を受けるため、弁カバー３は呼気弁取付環枠２の
縁から簡単に分離する。 Next, when you want to separate the valve cover 3 joined in this way from the exhalation valve mounting ring frame 2 in order to replace the exhalation valve 1 or for cleaning, hold the valve cover 3 and remove it from the right side while still joined. , or if the valve cover 3 is rotated to the left, the valve cover 3 can be easily rotated and the overhanging protrusion 9 can be rotated.
When the protrusion reaches the position of the extrusion protrusion 8, the protrusion 9 collides with the extrusion protrusion 8, and the protrusion 9 is scooped up and rides on the inclined edge 8a, and is pushed away. To easily separate from the edge of an exhalation valve mounting ring frame 2.
以上のように呼気弁取付環枠弁とカバーとは、
環状凹溝と、囲繞凸条との係合によつて接合連接
されるので、接合強度は実用上充分であり、しか
も、弁カバーを廻すだけの操作で弁カバーは容易
に呼気弁取付環枠から分離できるため、従来の螺
合式のように分離に不便を覚えることがなく、従
つて呼気弁の交換、及び弁座部の掃除も手軽にで
き、常に呼気弁装置部を正常・清潔に保持できて
呼気弁の作用を円滑に行なわせることができる効
果がある。 As mentioned above, the exhalation valve mounting ring frame valve and cover are as follows:
Since the annular groove and the surrounding protrusion are connected to each other by engagement, the joint strength is sufficient for practical use, and the valve cover can be easily attached to the exhalation valve mounting ring frame by simply turning the valve cover. Since it can be separated from the valve, there is no inconvenience in separating it like with conventional screw-on type, and it is also easy to replace the exhalation valve and clean the valve seat, keeping the exhalation valve device normal and clean at all times. This has the effect of allowing the exhalation valve to function smoothly.
図面は本案の実施例を示すものにして、第１図
は呼気弁取付環枠と、弁カバーとを接合した場合
の側面図、第２図は呼気弁取付環枠と、弁カバー
とを分離した側面図、第３図は弁カバーの内側を
示す平面図、第４図は呼気弁取付環枠の弁体面を
示す平面図、第５図は同じく呼気弁取付環枠のす
くいあげ傾斜縁を示す側面図、第６図は弁カバー
を呼気弁取付環枠から分離するときの説明図、第
７図は本案を防塵マスクに実施したその態様図で
ある。
１……呼気弁、２……呼気弁取付環枠、３……
弁カバー、３ａ……接合端面、４……嵌合突縁
部、５……環状凸条、６……囲繞凹溝、７……周
縁、８……押し出し突起片、８ａ……すくいあげ
傾斜縁、９……張り出し突片、１０……マスク本
体、１１……呼気弁カバー装置。
The drawings show examples of the present invention. Figure 1 is a side view of the exhalation valve mounting ring frame and valve cover joined together, and Figure 2 is a side view of the exhalation valve mounting ring frame and valve cover separated. Fig. 3 is a plan view showing the inside of the valve cover, Fig. 4 is a plan view showing the valve body surface of the exhalation valve mounting ring frame, and Fig. 5 also shows the scooped-up inclined edge of the exhalation valve mounting ring frame. A side view, FIG. 6 is an explanatory view when the valve cover is separated from the exhalation valve mounting ring frame, and FIG. 7 is a view of the present invention applied to a dust mask. 1...Exhalation valve, 2...Exhalation valve mounting ring frame, 3...
Valve cover, 3a...joint end surface, 4...fitting protrusion, 5...annular convex strip, 6...surrounding groove, 7...periphery, 8...extrusion protrusion piece, 8a...scooping sloped edge , 9... Projection piece, 10... Mask body, 11... Exhalation valve cover device.
Claims (1)
に、弁カバー３を着脱自由に取付けるようにした
呼気弁カバー装置１１に於て、呼気弁取付環枠２
の嵌合突縁部４に係合用環状凸条５を設け、これ
と係合する囲繞凹溝６を弁カバー３の基端に設
け、前記弁カバー３の接合端面３ａと当接する前
記呼気弁取付環枠２の接合周縁７の適所に、外方
に突出し、かつすくいあげ傾斜縁８ａを前縁に有
する押出し突起片８を設け、さらに前記弁カバー
３の縁部適所に、前記呼気弁取付環枠２に設けた
前記押出し突起片８と衝突する張り出し突片９を
設け、弁カバー３を一方へ回動させると、その張
り出し突片９が呼気弁取付環枠２の押出し突起片
８に衝突し、すくいあげ傾斜縁８ａに乗上げ、そ
の乗上げ箇所から呼気弁取付環枠２の係合用環状
凸条５が弁カバー３の囲繞凹溝６の係合から解除
され、弁カバー３が外れることを特徴とする、防
塵マスク用呼気弁カバーの取付装置。 Exhalation valve mounting ring frame 2 attached to the mask body 10
In the exhalation valve cover device 11 in which the valve cover 3 can be freely attached and detached, the exhalation valve mounting ring frame 2
An annular engagement protrusion 5 is provided on the fitting protrusion 4 of the exhalation valve, and a surrounding concave groove 6 that engages with the engagement annular protrusion 5 is provided at the base end of the valve cover 3, and the exhalation valve is in contact with the joint end surface 3a of the valve cover 3. An extruded protrusion piece 8 that protrudes outward and has a scooping sloped edge 8a at the front edge is provided at a suitable position on the joint peripheral edge 7 of the mounting ring frame 2, and the exhalation valve mounting ring is provided at a suitable position on the edge of the valve cover 3. An overhanging protrusion 9 is provided that collides with the extrusion protrusion 8 provided on the frame 2, and when the valve cover 3 is rotated in one direction, the overhanging protrusion 9 collides with the extrusion protrusion 8 of the exhalation valve mounting ring frame 2. Then, it rides up on the scooped-up inclined edge 8a, and the engagement annular protrusion 5 of the exhalation valve mounting ring frame 2 is disengaged from the surrounding concave groove 6 of the valve cover 3 from the point where it rides up, and the valve cover 3 is removed. A mounting device for an exhalation valve cover for a dust mask, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13721083U JPS6045048U (en) | 1983-09-03 | 1983-09-03 | Attachment device for exhalation valve cover for dust mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13721083U JPS6045048U (en) | 1983-09-03 | 1983-09-03 | Attachment device for exhalation valve cover for dust mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6045048U JPS6045048U (en) | 1985-03-29 |
| JPH0244766Y2 true JPH0244766Y2 (en) | 1990-11-28 |
Family
ID=30308266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13721083U Granted JPS6045048U (en) | 1983-09-03 | 1983-09-03 | Attachment device for exhalation valve cover for dust mask |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6045048U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642637U (en) * | 1979-09-10 | 1981-04-18 |
-
1983
- 1983-09-03 JP JP13721083U patent/JPS6045048U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642637U (en) * | 1979-09-10 | 1981-04-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6045048U (en) | 1985-03-29 |
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