JPH02121049U - - Google Patents
Info
- Publication number
- JPH02121049U JPH02121049U JP3009189U JP3009189U JPH02121049U JP H02121049 U JPH02121049 U JP H02121049U JP 3009189 U JP3009189 U JP 3009189U JP 3009189 U JP3009189 U JP 3009189U JP H02121049 U JPH02121049 U JP H02121049U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust valve
- whistle
- assembly
- valve seat
- threaded guide
- 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.)
- Granted
Links
- 239000000428 dust Substances 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 2
- 230000008602 contraction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000007799 cork Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Description
第１図は本考案を実施した防塵マスクの正面斜
視図、第２図は考案要部の展開斜視図、第３図は
本考案に於ける通常の呼吸時における呼気の流れ
を示す説明図、第４図は笛アセンブリーの吹鳴時
における呼気の流れを示す説明図である。
１……排気弁座、２……ネジ状ガイド、３……
排気弁、４……笛アセンブリー、５……ガイド溝
、６……排気弁カバー、７……笛口、８……呼気
排出間隙、９……コルク玉。
Fig. 1 is a front perspective view of a dust mask implementing the present invention, Fig. 2 is an exploded perspective view of the main parts of the invention, and Fig. 3 is an explanatory diagram showing the flow of exhaled air during normal breathing in the present invention. FIG. 4 is an explanatory diagram showing the flow of exhaled air when the whistle assembly is blown. 1...Exhaust valve seat, 2...Threaded guide, 3...
Exhaust valve, 4...whistle assembly, 5...guide groove, 6...exhaust valve cover, 7...whistle mouth, 8...exhalation discharge gap, 9...cork ball.
Claims (1)
に、呼気を排気する間隙を拡縮調節することがで
きる笛アセンブリーを内装したことを特徴とする
笛の吹鳴装置を具えた防塵・防毒マスク。 マスク外面の排気弁座の前面側端縁部にネジ
状ガイドを設け、これと係合するガイド溝を笛ア
センブリーの外周に設け、このガイド溝とネジ状
ガイドとを係合させ、笛アセンブリーを排気弁座
の前面側を囲む排気弁カバー内側に配設し、笛ア
センブリーの操作により排気弁座と笛アセンブリ
ーとの間に構成される呼気排出間隙の拡縮調節を
可能に設け、呼気排出を笛アセンブリーへ連通さ
せたことを特徴とする笛の吹鳴装置を具えた防塵
・防毒マスク。[Scope of Claim for Utility Model Registration] A whistle blowing device characterized in that a whistle assembly is installed inside an exhaust valve cover that surrounds the front side of an exhaust valve seat and can adjust the expansion and contraction of the gap for exhausting exhaled air. Equipped with a dust and gas mask. A threaded guide is provided on the front edge of the exhaust valve seat on the outer surface of the mask, a guide groove that engages with the threaded guide is provided on the outer periphery of the whistle assembly, and the threaded guide is engaged with the threaded guide to complete the whistle assembly. It is arranged inside the exhaust valve cover that surrounds the front side of the exhaust valve seat, and the exhalation discharge gap between the exhaust valve seat and the whistle assembly can be adjusted to expand or contract by operating the whistle assembly. A dust-proof/gas-proof mask equipped with a whistle blowing device, which is characterized by communicating with the assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3009189U JPH074033Y2 (en) | 1989-03-16 | 1989-03-16 | Dust / gas mask with whistle blowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3009189U JPH074033Y2 (en) | 1989-03-16 | 1989-03-16 | Dust / gas mask with whistle blowing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02121049U true JPH02121049U (en) | 1990-10-01 |
| JPH074033Y2 JPH074033Y2 (en) | 1995-02-01 |
Family
ID=31254847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3009189U Expired - Fee Related JPH074033Y2 (en) | 1989-03-16 | 1989-03-16 | Dust / gas mask with whistle blowing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074033Y2 (en) |
-
1989
- 1989-03-16 JP JP3009189U patent/JPH074033Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH074033Y2 (en) | 1995-02-01 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |