JPH0120560Y2 - - Google Patents
Info
- Publication number
- JPH0120560Y2 JPH0120560Y2 JP1981002408U JP240881U JPH0120560Y2 JP H0120560 Y2 JPH0120560 Y2 JP H0120560Y2 JP 1981002408 U JP1981002408 U JP 1981002408U JP 240881 U JP240881 U JP 240881U JP H0120560 Y2 JPH0120560 Y2 JP H0120560Y2
- Authority
- JP
- Japan
- Prior art keywords
- air bag
- air
- present
- blast
- supply port
- 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
- 230000035939 shock Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 239000002360 explosive Substances 0.000 claims 1
- 238000004880 explosion Methods 0.000 description 4
- 238000005422 blasting Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Tents Or Canopies (AREA)
Description
【考案の詳細な説明】
本考案は、坑道内にて発破作業をする場合に生
ずる爆音を吸収緩和する爆音衝撃波緩和空気袋に
関するものである。[Detailed Description of the Invention] The present invention relates to an explosion sound shock wave mitigation air bag that absorbs and alleviates the explosion noise generated during blasting work in a mine shaft.
従来、防煙を目的として坑道内に空気袋を設置
する技術思想は存するが、従来の空気袋は給気口
より送風し、単に空気袋を膨満させたものである
ため、爆音あるいは爆風により破袋し、更には坑
道外の建物などにも悪い影響を与える場合がしば
しばあつた。 Traditionally, there has been a technical concept of installing air bags in mine shafts for the purpose of smoke prevention, but since conventional air bags simply inflate the air bags by blowing air from an air supply port, they are not ruptured by explosion noise or blast waves. This often caused damage to buildings outside the mine shaft.
本考案は、かかる爆音や爆風を緩和すべく改良
されたものであつて、以下図面に従つて説明す
る。 The present invention has been improved to alleviate such explosion noise and blast wave, and will be explained below with reference to the drawings.
図面は、本考案の一実施例を示すものであつ
て、第１図は坑道内に於ける設置状態を、第２
図は本考案に係る空気袋の一実施例を示してい
る。即ち、本考案に係る空気袋は、第２図に示す
如く、例えば、合成樹脂製帆布又はゴム引布等比
較的気密性を有する可撓性材料によりほぼ円筒形
状に形成された空気袋１であるが、その形状は、
設置条件により、球形、方形、円柱形その他適宜
選択するものである。 The drawings show one embodiment of the present invention, and FIG. 1 shows the installation state in a mine shaft, and FIG.
The figure shows an embodiment of the air bag according to the present invention. That is, as shown in FIG. 2, the air bag according to the present invention is an air bag 1 formed into a substantially cylindrical shape from a relatively airtight flexible material such as synthetic resin canvas or rubberized cloth. There is, but its shape is
Depending on the installation conditions, a spherical, rectangular, cylindrical or other shape may be selected as appropriate.
該空気袋１には一端面に給気口を少くとも１
ケ所設け、給気装置から送風される空気を伝達す
るホースが取付けうるようにすると共に、該空
気袋の給気口側端面即ち、坑道の外方面に排気
口を設ける。該排気口は、空気袋の一端面を
単に切り欠いたものでもよいし、切り欠きと共に
適宜な舌片を設けたものでもよいが、必ずしも上
記切欠きに限定されるものではない。例えば、複
数個の小孔による開放状の開口であつてもよく、
更には、前記切欠き縁部に夫々エアーチユーブを
取付けたものであつて衝撃波の生じた時に拡開す
るものであつてもよい。 The air bag 1 has at least one air supply port on one end surface.
A hose for transmitting air blown from the air supply device can be attached thereto, and an exhaust port is provided on the end face of the air bag on the air supply port side, that is, on the outer surface of the tunnel. The exhaust port may be formed by simply cutting out one end surface of the air bag, or may be formed by providing a suitable tongue piece along with the notch, but is not necessarily limited to the above-mentioned notch. For example, it may be an open opening with a plurality of small holes,
Furthermore, an air tube may be attached to each of the notch edges and expand when a shock wave occurs.
本考案に係る空気袋は、上述の如き構造を有し
ているものであつて、その大きさの一例を示せば
直径10ｍ、幅10ｍの円柱状の場合切欠き長さは２
ｍ程度のものであり、使用に際しては、空気袋を
坑道の所定の位置に設置し、ホースの一端を給
気口に接続し、他端を給気装置（図示せず）に
接続し、継続的に給気して空気袋を膨満させ、坑
道の内壁に密着させて使用するものである。 The air bag according to the present invention has the structure as described above, and to give an example of its size, in the case of a cylindrical shape with a diameter of 10 m and a width of 10 m, the length of the notch is 2.
In use, the air bag is installed at a designated location in the tunnel, one end of the hose is connected to the air supply port, the other end is connected to the air supply device (not shown), and the air bag is used continuously. The air bag is inflated by supplying air and is used by placing it in close contact with the inner wall of the tunnel.
本空気袋を使用した場合、発破の際に生じる爆
風（音）により、空気袋の表面（坑道内側）が第
１図鎖線に示す如く押圧され、その結果、空気袋
内の空気が排気口から瞬間的に押し出され、爆
風（音）を軽減することができる。 When this air bag is used, the blast (sound) generated during blasting presses the surface of the air bag (inside the tunnel) as shown by the chain line in Figure 1, and as a result, the air inside the air bag is forced out from the exhaust port. It is pushed out instantly and can reduce the blast (sound).
本考案によれば、従来の排気口のない空気袋の
如く、爆風（音）による破裂は生ぜず、爆風
（音）衝撃波を緩和し、坑道外の人や建物等に悪
い影響を与えることはない。また、構造も簡単な
ため安価に製作でき産業利用性の高いものであ
る。 According to the present invention, unlike conventional air bags without exhaust ports, the blast (sound) does not cause rupture, and the blast (sound) shock wave is alleviated, so that it does not have a negative impact on people or buildings outside the mine shaft. do not have. Furthermore, since the structure is simple, it can be manufactured at low cost and has high industrial applicability.
図面は、本考案の一実施例を示すものであつ
て、第１図は坑道内に設置した状態の側面図、第
２図本考案に係る空気袋の斜視図である。
……空気袋、……給気口、……排気口、
……ホース、……坑道。
The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the air bag installed in a mine shaft, and Fig. 2 is a perspective view of the air bag according to the invention. ...air bag, ...air supply port, ...exhaust port,
...hose, ...mine shaft.
Claims (1)
圧力の空気を送気し得る給気口を設けると共
に、該空気袋に一定以上の圧力が加わつた際に瞬
間的に拡開する排気口を設けてなる爆音衝撃波
緩和空気袋。 An air bag made of a flexible material is provided with an air supply port that can continuously supply air at a constant pressure, and an exhaust port that instantly expands when pressure above a certain level is applied to the air bag. Equipped with an air bag that alleviates explosive sound shock waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981002408U JPH0120560Y2 (en) | 1981-01-13 | 1981-01-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981002408U JPH0120560Y2 (en) | 1981-01-13 | 1981-01-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57119896U JPS57119896U (en) | 1982-07-26 |
| JPH0120560Y2 true JPH0120560Y2 (en) | 1989-06-20 |
Family
ID=29800848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981002408U Expired JPH0120560Y2 (en) | 1981-01-13 | 1981-01-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0120560Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511283U (en) * | 1974-06-19 | 1976-01-07 |
-
1981
- 1981-01-13 JP JP1981002408U patent/JPH0120560Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511283U (en) * | 1974-06-19 | 1976-01-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57119896U (en) | 1982-07-26 |
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