JPH0346842Y2 - - Google Patents
Info
- Publication number
- JPH0346842Y2 JPH0346842Y2 JP1986112908U JP11290886U JPH0346842Y2 JP H0346842 Y2 JPH0346842 Y2 JP H0346842Y2 JP 1986112908 U JP1986112908 U JP 1986112908U JP 11290886 U JP11290886 U JP 11290886U JP H0346842 Y2 JPH0346842 Y2 JP H0346842Y2
- Authority
- JP
- Japan
- Prior art keywords
- sound deadening
- nozzle
- deadening material
- discharge hole
- nozzle body
- 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
- 239000000463 material Substances 0.000 claims description 32
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- -1 wire mesh Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
- Pipe Accessories (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、圧縮気体の放出に伴う騒音を減音さ
せる消音ノズルに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a noise reduction nozzle that reduces noise caused by the discharge of compressed gas.
［従来の技術］
従来、空気圧シリンダ等を駆動した後に排出さ
れる空気を、円形または小孔の集合体よりなる放
出孔から大気に排出するようにしたノズルは、周
知であるが、このノズルは、圧縮気体の放出に伴
つて大きな騒音を発生する欠点がある。[Prior Art] Conventionally, a nozzle is well known in which the air discharged after driving a pneumatic cylinder or the like is discharged into the atmosphere from a discharge hole made of a circular shape or a collection of small holes. However, it has the disadvantage that it generates a lot of noise as the compressed gas is released.
この欠点を解消するために、第３図に示すよう
に、多数の小孔からなる放出孔１をもつたノズル
本体２内の中空部３に、不織布などの多孔体より
なる消音材４を充填したものも知られている。 In order to eliminate this drawback, as shown in Fig. 3, a hollow part 3 in a nozzle body 2 having a discharge hole 1 consisting of many small holes is filled with a sound deadening material 4 made of a porous material such as non-woven fabric. It is also known that
このノズルは、消音材４によつて圧縮気体の放
出に伴う騒音を減音させることができるが、消音
材４による気体の流通抵抗が大きいために、圧縮
気体の放出力が低下する欠点がある。 Although this nozzle can reduce the noise accompanying the release of compressed gas by the sound-deadening material 4, it has the disadvantage that the power to release the compressed gas decreases because the gas flow resistance caused by the sound-deadening material 4 is large. .
また、ノズル本体の外側に空気の流入口を有す
る筒状ソケツトを設置するとともに、該筒状ソケ
ツト先端の径方向に消音材を二層設けた消音器
が、特開昭55−27031号公報において提案されて
いる。 Furthermore, Japanese Patent Application Laid-Open No. 55-27031 discloses a silencer in which a cylindrical socket having an air inflow port is installed on the outside of the nozzle body, and two layers of sound deadening material are provided in the radial direction at the tip of the cylindrical socket. Proposed.
この既提案の消音器は、空気の流入口から吸引
される空気流によつて気体の放出力が助長される
という利点を有するが、径方向の二層の消音材の
ために全体が大形になり、しかも消音材が破損や
汚損し易いという問題がある。 This previously proposed muffler has the advantage that the gas discharging force is facilitated by the air flow sucked in from the air inlet, but the overall size is large due to the two layers of sound deadening material in the radial direction. Moreover, there is a problem that the sound deadening material is easily damaged and soiled.
［考案が解決しようとする課題］
本考案が解決しようする課題は、消音材による
気体の流通抵抗が小さいものでありながら、小形
でかつ取扱いが容易な消音ノズルを提供すること
にある。[Problem to be Solved by the Invention] The problem to be solved by the present invention is to provide a noise-reducing nozzle that is small and easy to handle, while having a small gas flow resistance due to the noise-reducing material.
［課題を解決するための手段］
上記課題を解決するため、本考案の消音ノズル
は、ノズル本体の放出孔に、該放出孔からノズル
本体外に突出する多孔の消音材を取付け、ノズル
本体の上記放出孔の周囲に、複数の径方向の空気
流入用開口部を有し上記消音材の外周を覆うリン
グ状のガイド壁を設けたことを特徴としている
る。[Means for Solving the Problems] In order to solve the above problems, the sound deadening nozzle of the present invention is provided by attaching a porous sound deadening material to the discharge hole of the nozzle body and protruding from the discharge hole to the outside of the nozzle body. A ring-shaped guide wall having a plurality of radial air inflow openings and covering the outer periphery of the sound deadening material is provided around the discharge hole.
［作用］
放出孔から放出される圧縮気体は、多孔の消音
材によつて、放出に伴う騒音が減音される。[Function] The noise accompanying the release of the compressed gas released from the release hole is reduced by the porous sound deadening material.
この場合、消音材を、放出孔からノズル本体外
に突出させてその有効排出流路断面を拡大させた
ことにより、消音材の流通抵抗が小さくなり、ま
たガイド壁の空気流入用開口部からら吸引される
空気流が、放出孔からの圧縮気体の放出を助長す
るので、これらの相乗効果によつて圧縮気体の放
出力の低下を小さくすることができ、しかも全体
を小形にすることができる。 In this case, by making the sound deadening material protrude outside the nozzle body from the discharge hole and enlarging its effective discharge flow path cross section, the flow resistance of the sound deadening material is reduced, and the flow resistance of the sound deadening material is reduced. Since the sucked air flow promotes the release of compressed gas from the release hole, the synergistic effect of these effects makes it possible to reduce the decrease in the release force of compressed gas, and furthermore, it is possible to reduce the overall size. .
また、放出孔から突出させた消音材の外周を覆
うガイド壁によつて、ノズル本体外に突出させた
消音材が保護されるので、破損や汚損の恐れがな
く、したがつてノズルの取扱いが容易である。 In addition, the guide wall that covers the outer periphery of the sound deadening material that protrudes from the discharge hole protects the sound deadening material that protrudes from the nozzle body, so there is no risk of damage or staining, and therefore, the nozzle is easy to handle. It's easy.
［実施例］
第１図及び第２図は本考案の実施例を示し、こ
の消音ノズルは、ノズル本体１１と多孔の消音材
１２とで構成されている。[Embodiment] FIGS. 1 and 2 show an embodiment of the present invention, and this muffling nozzle is composed of a nozzle body 11 and a porous muffling material 12.
上記ノズル本体１１は、ナツト状の外形を有す
る基部１４とその軸線方向に延設されたリング状
のガイド壁１５を備え、基部１４のガイド壁側に
は、基部１４の中空部に連通する放出孔１６が開
設され、またガイド壁１５には径方向の複数の空
気流入用開口部１７，…が開設されており、全体
がポリアセタール樹脂等の合成樹脂によつて一体
に形成されている。 The nozzle body 11 includes a base 14 having a nut-shaped outer shape and a ring-shaped guide wall 15 extending in the axial direction thereof. A hole 16 is provided, and a plurality of radial air inflow openings 17, .
一方、消音材１２は、金網、不織布またはウレ
タンフオームなどの多孔体を半球殻状に形成した
もので、上記放出孔１６に、該放出孔１６からノ
ズル本体１１外に突出させた状態で、かつガイド
壁１５の軸方向から突出しないように取付けられ
ている。 On the other hand, the sound deadening material 12 is made of a porous material such as wire mesh, non-woven fabric, or urethane foam formed into a hemispherical shell shape, and is provided in the discharge hole 16 in a state of protruding from the discharge hole 16 to the outside of the nozzle body 11. It is attached so as not to protrude from the axial direction of the guide wall 15.
上記消音ノズルは、基部１４に該設された雌ね
じによつて、所望の機器の圧縮気体排出口に取付
けられるものである。 The muffling nozzle is attached to a compressed gas outlet of a desired device by means of a female thread provided on the base 14.
このような構成を有する消音ノズルにおいて、
機器の排出口から排出される圧縮気体は、基部１
４の中空部、放出孔１６、及び該放出孔１６に突
出させて取付けた消音材１２を通つて外気に放出
され、、この際消音材１２によつて気体の放出に
伴う騒音が減音される。 In a noise-reducing nozzle having such a configuration,
The compressed gas discharged from the outlet of the equipment is
The gas is released into the outside air through the hollow part of 4, the discharge hole 16, and the sound deadening material 12 attached to the discharge hole 16 so as to protrude therefrom, and at this time, the noise accompanying the gas discharge is reduced by the sound deadening material 12. Ru.
この場合、消音材１２を、放出孔１６からノズ
ル本体１１外に突出させて取付けたことにより、
ノズルを小形にすることができ、しかも消音材１
２の有効排出流路断面が拡大されてその流通抵抗
が小さくなる。 In this case, by attaching the sound deadening material 12 so as to protrude from the discharge hole 16 to the outside of the nozzle body 11,
The nozzle can be made smaller, and the sound deadening material 1
The cross section of the effective discharge flow path of No. 2 is enlarged, and its flow resistance is reduced.
また、消音材１２の流通抵抗が小さいことと、
ガイド壁１５に設けた開口部１７，…から吸引さ
れる空気流とによつて、圧縮気体の放出力の低下
を小さくすることができる。 Furthermore, the flow resistance of the sound deadening material 12 is small;
Due to the air flow sucked through the openings 17 provided in the guide wall 15, the reduction in the release force of the compressed gas can be reduced.
さらに、消音材１２の外周を覆うガイド壁１５
によつて、ノズル本体１１外に突出された消音材
１２が保護されて破損や汚損の恐れがないので、
ノズルの取扱いが容易である。 Furthermore, a guide wall 15 that covers the outer periphery of the sound deadening material 12
This protects the sound deadening material 12 protruding from the nozzle body 11 and prevents it from being damaged or contaminated.
The nozzle is easy to handle.
［考案の効果］
本考案の消音ノズルは、消音材を放出孔からノ
ズル本体外に突出させて取付けたことによつて消
音材の流通抵抗が小さくなり、しかもノズル本体
の外周に消音材を設けたものに比べてノズルを小
形にすることができる。[Effects of the invention] The sound deadening nozzle of the present invention has the sound deadening material protruding from the discharge hole to the outside of the nozzle body, thereby reducing the flow resistance of the sound deadening material. The nozzle can be made smaller than the conventional one.
また、消音材の流通抵抗がが小さいことと、放
出孔周囲のガイド壁の流通孔からガイド壁内に吸
引される空気流が圧縮気体の放出を助長すること
とによつて、圧縮気体の放出力の低下を小さくす
ることができる。 In addition, the flow resistance of the sound deadening material is small, and the air flow sucked into the guide wall from the flow holes in the guide wall around the discharge hole promotes the release of compressed gas. It is possible to reduce the decrease in output.
さらに、上記ガイド壁が内側の消音材を保護す
るので、ノズル本体外に突出する消音材が破損や
汚損する恐れがなく、したがつてノズルの取扱い
が容易である。 Furthermore, since the guide wall protects the sound deadening material inside, there is no fear that the sound deadening material protruding outside the nozzle body will be damaged or soiled, and therefore the nozzle is easy to handle.
第１図は本考案の実施例の一部縦断正面図、第
２図は同上平面図、第３図は公知の消音ノズルの
縦断正面図である。
１１…ノズル本体、１２…消音材、１５…ガイ
ド壁、１６…放出孔、１７…開口部。
FIG. 1 is a partially longitudinal front view of an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a longitudinal front view of a known muffling nozzle. DESCRIPTION OF SYMBOLS 11... Nozzle main body, 12... Sound deadening material, 15... Guide wall, 16... Discharge hole, 17... Opening.
Claims (1)
体外に突出する多孔の消音材を取付け、ノズル本
体の上記放出孔の周囲に、複数の径方向の空気流
入用開口部を有し上記消音材の外周を覆うリング
状のガイド壁を設けたことを特徴とする消音ノズ
ル。 A porous sound deadening material protruding from the discharge hole to the outside of the nozzle body is attached to the discharge hole of the nozzle body, and the sound deadening material has a plurality of radial air inflow openings around the discharge hole of the nozzle body. A noise-reducing nozzle characterized by having a ring-shaped guide wall covering the outer periphery of the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986112908U JPH0346842Y2 (en) | 1986-07-23 | 1986-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986112908U JPH0346842Y2 (en) | 1986-07-23 | 1986-07-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6320963U JPS6320963U (en) | 1988-02-12 |
| JPH0346842Y2 true JPH0346842Y2 (en) | 1991-10-03 |
Family
ID=30994221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986112908U Expired JPH0346842Y2 (en) | 1986-07-23 | 1986-07-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0346842Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4622341B2 (en) * | 2004-06-28 | 2011-02-02 | パナソニック株式会社 | Blow nozzle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527031A (en) * | 1978-08-14 | 1980-02-26 | Shiyouon Giken Kk | Silencer for air nozzle |
-
1986
- 1986-07-23 JP JP1986112908U patent/JPH0346842Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5527031A (en) * | 1978-08-14 | 1980-02-26 | Shiyouon Giken Kk | Silencer for air nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6320963U (en) | 1988-02-12 |
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