JPS60199142A - Sound-proof ventilation apparatus - Google Patents
Sound-proof ventilation apparatusInfo
- Publication number
- JPS60199142A JPS60199142A JP59055780A JP5578084A JPS60199142A JP S60199142 A JPS60199142 A JP S60199142A JP 59055780 A JP59055780 A JP 59055780A JP 5578084 A JP5578084 A JP 5578084A JP S60199142 A JPS60199142 A JP S60199142A
- Authority
- JP
- Japan
- Prior art keywords
- building
- blade
- ventilation system
- sound
- blades
- 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.)
- Pending
Links
Landscapes
- Building Environments (AREA)
- Ventilation (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は防昌換気装置に係り、特に壁面、扉、ダクト等
の連通開口部に設りられる防音換気装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a soundproof ventilation system, and particularly to a soundproof ventilation system installed in a communication opening of a wall, a door, a duct, or the like.
従来の防音換気装置の構造が第１図に示されている。第
１図に示すように建屋壁面１０に開口された連通開口部
■２には鉄扱、アルミ扱等によって形成した雉冊形仕切
ＪＭ１４が矢印Δで２１＜ず空気の流れ方向に対してｌ
’Ｊｉ斜して配置され′（おり、この仕切板１４の上端
部には雨返し１６が形成され、所定間隔で複数枚設置さ
れている。 ゛しかしながらこのように構成された従来
の防昌換気装置に於いては、建屋内の騒音が連通開口部
１２を通って建屋外に漏れる恐れがあるため、連通関口
部１２の建屋内側或いは外側にパンチボート１８と吸音
＋Ａ２０とから成る消音エルボ２２を設置したり、若し
くは建屋内に置かれている騒６発生源であるｌａ器自体
を防音カバー等で覆って防音対策を施している。しかし
ながらこのような防音対策はコストがかかり、更に防搗
構造のための独自の設置スペースを必要とする等の不共
合があった。The structure of a conventional soundproof ventilation system is shown in FIG. As shown in Fig. 1, a pheasant-shaped partition JM14 formed using iron or aluminum is inserted into the communication opening ■2 opened in the building wall surface 10 at an arrow Δ of 21
A rain cover 16 is formed at the upper end of the partition plate 14, and a plurality of rain flaps 16 are installed at predetermined intervals. In the equipment, since there is a risk that noise inside the building may leak to the outside of the building through the communication opening 12, a noise reduction elbow 22 consisting of a punch boat 18 and a sound absorbing +A20 is installed on the inside or outside of the building of the communication gateway 12. Soundproofing measures are taken by covering the LA equipment itself, which is the source of noise, which is installed or placed in the building, with a soundproofing cover, etc. However, such soundproofing measures are costly, and the construction There were some inconsistencies, such as the need for a separate installation space.
本発明はこのような事情に鑑みてなされたもの Ｉで、
防音のための独自の設置スペースを必要とせず、而も換
気装置としての通風機能をも備えた防音換気装置を提案
することを目的としている。The present invention was made in view of these circumstances.
The purpose of the present invention is to propose a soundproof ventilation system that does not require its own installation space for soundproofing and also has a ventilation function as a ventilation system.
本発明は前記目的を達成するために壁面、扉、ダクト等
の連通開口部に設りられる防音換気装置に於い”乙連通
開口部に横方向に配置された羽根を上］・方向に複数本
設り、該羽根は断面が逆■字形状に形成されると共に、
水平Ｎ通路を作らないよ・）に互いにＪす「定の間ｔｌ
Ｎ、４を保っ゛ζ配置され、更に該羽根の上面を構成す
る表面板の裏側に吸音材を装置ζしたごとを特徴として
いる。In order to achieve the above-mentioned object, the present invention provides a soundproof ventilation device installed in a communication opening of a wall, a door, a duct, etc., in which a plurality of blades arranged horizontally in the communication opening are directed upwards. In this case, the blade has an inverted ■-shaped cross section, and
Do not create a horizontal N passage.
It is characterized by the fact that the blades are arranged so that the blades have the same pitch as N and 4, and that a sound absorbing material is arranged on the back side of the surface plate that constitutes the upper surface of the blade.
以−ト添（−Ｊ図面に従って本発明に係る防音換気装置
の好ましい実施例をｔｔＹ：説する。A preferred embodiment of the soundproof ventilation system according to the present invention will be described below with reference to the accompanying drawings.
第２図に；Ｊりずように建屋の壁面２４には連通開口部
２６が形成され、この連通開口部２６に後述する防音換
気装置が配置される。壁面２４の左側Ｍは建屋外側であ
り、右側Ｎは建屋内側である。In FIG. 2, a communication opening 26 is formed in the wall surface 24 of the building, and a soundproof ventilation system, which will be described later, is arranged in this communication opening 26. As shown in FIG. The left side M of the wall surface 24 is on the outside of the building, and the right side N is on the inside of the building.
連通開口部２６の上部には枠２８が配置され、ごの枠２
８の両側端には粋の側面を構成する縦棒３０が設けられ
る。この縦枠３ｏには逆Ｖ字形に構成された羽根３２が
上下方向に所定間隔で配置される。羽根３２は横方向に
配置され、更に水平貫通路を形成しない程度の折曲げ角
で上下方向に所定間隔保って配置されている。A frame 28 is arranged above the communication opening 26, and the frame 28
Vertical bars 30 are provided at both ends of the frame 8 to form the sides of the frame. In this vertical frame 3o, blades 32 having an inverted V shape are arranged at predetermined intervals in the vertical direction. The blades 32 are arranged laterally, and furthermore, they are arranged at predetermined intervals in the vertical direction at a bending angle that does not form a horizontal passage.
次に羽根３２の構造について説明する。羽根３２ば断面
が逆Ｖ字形に形成された表面板３４とこの表面板３４の
裏側に装着された吸音（Ａ３６とから構成されている。Next, the structure of the blade 32 will be explained. The blade 32 is composed of a surface plate 34 having an inverted V-shaped cross section and a sound absorbing member (A36) attached to the back side of the surface plate 34.
表面板３４はす、扱、アルミ板、高分子材料等を利用し
て（＆成することができるが本実施例の如く建屋壁面２
４に取（＝Ｊける場合には−１ルミ仮が好ましい。また
吸音（Ａ３６はグラスウール等の多孔質繊維、或いはセ
ラミック吸音材、多孔質焼結金ｊｐｂ吸音祠等を用いる
ことができる。またこの表面板３４の裏側には吸凸４Ａ
３６と空気層とを多重に構成してもよい。The surface plate 34 can be formed using a metal plate, an aluminum plate, a polymer material, etc., but as in this embodiment, the building wall surface 2
-1 lumi temporary is preferable when taking 4 (=J).Also, for sound absorption (A36, porous fibers such as glass wool, ceramic sound absorption material, porous sintered metal jpb sound absorption shrine, etc. can be used. On the back side of this surface plate 34, there are suction protrusions 4A.
36 and the air layer may be configured in multiple layers.
表面板３４の下品１部３８の形状について説明すると、
下端において垂直に折れ曲がり、更に装着する吸音材３
６の厚さに見合った−・」法だり輻をもたせて表面板３
４と同じ傾斜角で折り返す所謂袋状に形成されている。To explain the shape of the bottom part 38 of the surface plate 34,
Sound absorbing material 3 bent vertically at the lower end and further attached
Surface plate 3 with a radius corresponding to the thickness of 6.
It is formed into a so-called bag shape that is folded back at the same inclination angle as 4.
表面板３４の下端部３８の形状として第３図に示すよう
に傾斜部と直角に折 ゛れ曲がった形状、または第４図
に示すよ・）に傾斜部の下品）から水平に折れ曲がる形
状が考えられるが、第３１並ひに第４図に示す形状は次
の理由によって好ましくない。即ら第３図並びに第４図
に示す表面板３４の下端部３８の形状では、雨水の水滴
が羽根３２の内側に廻り込んで落］・することになり、
この時風圧に押されて建屋内側Ｎに侵入する機会が多く
なり好ましくない。更に羽根３２を等間隔で縦枠３０に
取付けた場合、第２図に示す羽根３２の端５５Ｈの形状
の場合が、第３図並びに第４図に示す］端部の形状と較
べて表面板３４の遮音面積を最も大きく取ることができ
る。The shape of the lower end 38 of the surface plate 34 may be bent at right angles to the slope as shown in Figure 3, or bent horizontally from the slope as shown in Figure 4. Although it is possible, the shapes shown in FIG. 31 and FIG. 4 are not preferable for the following reasons. That is, with the shape of the lower end portion 38 of the surface plate 34 shown in FIGS.
At this time, there are many opportunities for the wind pressure to push the air into the inside of the building, which is not preferable. Furthermore, when the blades 32 are attached to the vertical frame 30 at regular intervals, the shape of the end 55H of the blade 32 shown in FIG. 2 is smaller than the shape of the end shown in FIGS. 34, the largest sound insulation area can be obtained.
また表面板３４のＴ端部３８の袋状に折り曲げた最下部
の内側には水抜き孔４４が横方向に沿って複数個形成さ
れている。この水抜き孔４４は表面板３４に当たった雨
水が跳ね上がり該表面様３４の上方の吸、＋１月３６に
イ・］着した後、吸音材３６に沿っ゛ζ落−トし、前記
袋状に形成した羽（Ｒの下端部３８に溜るのを防止する
ためＣある。また羽根３２を縦枠３０に固定するのは傾
斜部に設けたねじ４Ｇ、４６並びに頂部に設りられたね
し４８である。ねし４６は表面板３４の」二に突出した
突起部５０に形成され、表面板３４の裏側は平坦面に形
成されている。これにより後述するように吸音材３６の
挿入が容易になる。また円弧状の突起５０が上方の羽根
下端部３８に隠れる位置に形成され、建屋外側傾斜部に
おいては、突起５０が水返しの役目を果し、建屋内側（
す（斜部においては、侵入した雨水をこの突起５０で一
旦溜め、水滴を大きくしてから落−トさ−Ｕる役目を果
す。また第２図にボずように羽根３２の頂部の裏側には
逆Ｙ字形の吸音祠支え５２が形成されている。この吸音
材支え５２と前記袋状に形成したＴｌ１ｉ、ｉ部３８と
の間に所定の形状に切断した吸音材３６合羽（Ｒ３２の
長手方向から挿入することにより節１４′！に吸昌４Ａ
３６を装着することができる。Further, a plurality of drain holes 44 are formed along the lateral direction inside the lowermost portion of the T end portion 38 of the surface plate 34 which is bent into a bag shape. This drain hole 44 allows rainwater that has hit the surface plate 34 to splash up, absorb it above the surface 34, land on it, and then fall along the sound absorbing material 36, forming the bag-like shape. The blades 32 are fixed to the vertical frame 30 using the screws 4G and 46 provided on the slope and the screw 48 provided on the top. The groove 46 is formed on a protrusion 50 that protrudes outward from the top plate 34, and the back side of the top plate 34 is formed into a flat surface.This makes it easy to insert the sound absorbing material 36 as will be described later. In addition, an arc-shaped projection 50 is formed at a position hidden by the lower end portion 38 of the upper blade, and at the sloped part outside the building, the projection 50 serves as a water return, and the inside of the building (
(In the slanted part, this protrusion 50 temporarily collects the rainwater that has entered, and makes the water droplet larger before it falls. Also, as shown in Fig. 2, the back side of the top of the blade 32 An inverted Y-shaped sound absorbing support 52 is formed.A sound absorbing material 36 cut into a predetermined shape (R32 By inserting from the longitudinal direction, the suction 4A is inserted into the node 14'!
36 can be installed.
防音換気装置を構成する最上段の羽１にはへのＹ形に形
成される。これは人様５４と上から二番目の羽根３２と
の間にスペースが生し、外観上好ましくなく、また大根
５４と二番目の羽根３２との間に水平貫通路ができるの
を防ぐためである。The uppermost blade 1 constituting the soundproof ventilation system is formed in a Y-shape. This is to prevent a space from forming between the person 54 and the second blade 32 from the top, which is unfavorable in terms of appearance, and to prevent a horizontal passage from being formed between the radish 54 and the second blade 32. .
また最下段の羽根５８は第２図に示すように上方の羽根
３２と同様の傾斜角度を持つ傾斜１及６０が設りられて
いる。この最下段の羽根５８は底板６２と）から二番目
の羽根３２との間にスペースが牛しるのを防止すると共
に、水平貫通路を佳しないようにするだめのもので、ま
た傾斜板６０は、外観を他の羽根３２と同様にするため
のものである。次に枠２８の底辺を構成する底板６２の
形状につい゛ζ説明する。底板６２は第２図に、ｊ＜ず
ように建屋内側Ｎから外側Ｍへ向かって緩やかな下り勾
配に傾斜し−ζ成形され、さらに該底板６２の建屋内側
の端に断面短１１１１状の縁６４と該底板６２の中心部
に最下端の羽根５８を数句けるための台ｊ正６６が形成
されている。台座６Ｇの下端部には横方向に複数個の逃
し孔６８が形成され、この逃し孔６８は底板６２に近接
するように形成されている。Further, as shown in FIG. 2, the lowermost blade 58 is provided with slopes 1 and 60 having the same slope angle as the upper blade 32. This lowermost blade 58 is used to prevent the space between the bottom plate 62 and the second blade 32 from becoming obstructed, and also to prevent the horizontal passage from being obstructed. is for making the appearance similar to other blades 32. Next, the shape of the bottom plate 62 constituting the bottom side of the frame 28 will be explained. As shown in FIG. 2, the bottom plate 62 is formed with a gentle downward slope from the inside N to the outside M of the building so that j < 64 and the center of the bottom plate 62 is formed with a stand 66 for mounting several blades 58 at the lowest end. A plurality of escape holes 68 are formed in the lower end of the pedestal 6G in the lateral direction, and the escape holes 68 are formed close to the bottom plate 62.
次に建屋内側Ｎの枠２８に取（＝Ｊりられる水受け６９
の形状について説明する。水受り６９は第２図に示すよ
うに片傾斜した底部７０を有するポツパー形に形成され
、底部７０の一ト端部は垂直に折曲がり且つ前記底板６
２の縁６４に嵌合する溝７１を有している。Next, take the water into the frame 28 on the inside of the building (=J).
The shape of will be explained. As shown in FIG. 2, the water receptacle 69 is formed in a popper shape with a bottom part 70 that is inclined on one side, and one end of the bottom part 70 is bent vertically and the bottom plate 69 is bent vertically.
It has a groove 71 that fits into the edge 64 of 2.
前記の如く構成された本発明に係る随行換気装置の作用
は次の通りである。第２図に示す防８換気装置に於いて
空気の流れは矢印Ａで示すように建屋外側Ｍから建屋内
側Ｎに入り、更に建屋内側Ｎの騒音源によって発生した
６波は矢印Ｂで示すように建屋内側Ｎから外側Ｍに流れ
る。建屋内側Ｎで発生した音波は矢印Ｂで示す方向に進
み、表面板３４で反射され、再び建屋内側Ｎに仄される
か若しくは表面板３４によって反射された後真上の羽根
３２の吸音材３６によっ“ζ吸音される。The operation of the accompanying ventilation system according to the present invention configured as described above is as follows. In the ventilation system shown in Figure 2, air flows from the outside of the building M to the inside of the building N as shown by arrow A, and the 6 waves generated by the noise source inside the building N flow as shown by arrow B. It flows from inside the building N to outside M. The sound waves generated on the inside N of the building proceed in the direction shown by the arrow B, are reflected by the surface plate 34, and are again transmitted to the inside N of the building, or after being reflected by the surface plate 34, the sound waves travel to the sound absorbing material 36 of the blade 32 directly above. The sound is absorbed by “ζ.
前記実施例に於いては羽根３２の表面板３４は鉄板、ア
ルミ扱、高分子桐材等で構成されているので耐候性があ
る。また表面板３４は建屋外側Ｍに向けて傾斜されてお
り、而も羽根３２の傾斜部には水返しのための突起５０
が形成されているので建屋内側Ｎへの山水の侵入は少な
い。In the embodiment described above, the surface plate 34 of the blade 32 is made of iron plate, aluminum, polymeric paulownia material, etc., so that it is weather resistant. Further, the surface plate 34 is inclined toward the outside M of the building, and a protrusion 50 for returning water is provided on the inclined part of the blade 32.
is formed, so there is little intrusion of mountain water into the inside of the building.
１１１記￥施例に於いて第２図に示した水受け６９を設
けることにより建屋内側Ｎに侵入してきた雨水をＩｒ１
ｉ築し、底板６２に設りた逃し孔６８を通し’Ｃｊｊ！
屋外側Ｍへ排出することができる。111 In the example, by providing the water receiver 69 shown in Figure 2, the rainwater that has entered the inside of the building can be collected by Ir1.
'Cjj!' through the relief hole 68 provided in the bottom plate 62.
It can be discharged to the outdoor side M.
第２図にボず実施例では羽根３２の締着用の突起５０は
円弧状に形成したのであるが第５図に示すように開Ｌ１
部を１４つ突起部７２を形成し、その開口部分が下方に
向くように形成すると水返しのすＪ果ば更に増大する。In the embodiment shown in FIG. 2, the protrusion 50 for fastening the blade 32 is formed in an arc shape, but as shown in FIG.
If 14 protrusions 72 are formed with the openings facing downward, the water return capacity will further increase.
また第６図に示すように羽根３２の頂部に於いて先端が
建屋外側に向かう水返し７Ｇを形成すれば更にを効に雨
水の侵入を防ぐことができる。Further, as shown in FIG. 6, if a water return 7G is formed at the top of the blade 32, the tip of which points toward the outside of the building, rainwater can be prevented from entering even more effectively.
ｆｆ１７図乃至第１１図に於いては本発明に係る他の実
施例の構造が示されている。第７図に示す実施例に於い
て前記第２図で示した実施例と同一の部（Ａ若しくは類
似の部材には同一の９３号を付しその説明は省略する。ff17 to 11 show structures of other embodiments according to the present invention. In the embodiment shown in FIG. 7, parts (A or similar members) that are the same as those in the embodiment shown in FIG.
第７図に示す実施例に於いて第２図でボず実施例と異な
る部分は羽根３２の下面に第９図で示ず板ばね８０が設
けられ、この４反ばね８０によって吸音材３Ｇが表面板
３４の裏側に装着されている。このように吸音月３６を
１にはね８０によって取（＝Ｊけるごとにより表面板３
４の頂部に形成された逆Ｙ字形の吸畠（Ａ支え５２が不
要になり表面板３４の製造コストが低−トする利点があ
る。また羽根３２の右側即ら建屋内側にｌｖｒ面コの字
形の樋８２を一体に形成すれば羽根３２を乗り越えて侵
入し°（くる雨水を完全に油止゛４るごとができるため
建屋内床への雨水の飛散は全くない。また捕集した雨水
ば樋８２の水路て孔８４から底板６２に落とし、更に底
板６２の逃し孔６８から建屋外部に排出することかで８
る。ごの場合水路て孔８４を正面から覆うように縦板８
８が設りられているため水路て孔８４から？ｔトする雨
水が途中から飛散することはない。樋８２を設けたので
以前必要であった水受け６９は不要になる。In the embodiment shown in FIG. 7, the difference from the Bozu embodiment in FIG. It is attached to the back side of the surface plate 34. In this way, the sound-absorbing moon 36 is removed by the spring 80 (=J is removed by the surface plate 3
An inverted Y-shaped suction ridge formed on the top of the blade 4 (A support 52 is not required, which has the advantage of reducing the manufacturing cost of the surface plate 34. Also, an LVR surface ridge is formed on the right side of the blade 32, that is, on the inside of the building. If the gutter 82 is formed integrally, it is possible to completely stop the rainwater that enters by climbing over the blades 32, so there is no rainwater splashing onto the floor of the building. By dropping the water from the water channel hole 84 of the gutter 82 onto the bottom plate 62, and then discharging it to the outside of the building from the relief hole 68 of the bottom plate 62.
Ru. In this case, install the vertical plate 8 so as to cover the waterway hole 84 from the front.
8 is installed, so the waterway is from hole 84? Rainwater will not scatter from the middle. Since the gutter 82 is provided, the water receiver 69 that was previously necessary is no longer necessary.
また第１０図並びに第１１図に示すように防音換気装置
の内側に金網９０を設は乳ば、この金網９０で建屋内側
への飛散水ｌ＋’ｔａをＩ＋Ｉｉ ’４５するごとがで
きるため、水受け６９の幅を第２図の防音換気装置の水
受け６９の幅より小さくすることができる以上説明した
ように本発明に係る防音換気装置によれば、連通開口部
に横方向に配置された羽根を上下刃向に複数本設レノ、
該羽根はＬＩＪｉ面が逆Ｖ字形状に形成されると共に、
水平貫通路を形成しないように互いに所定の間隔を保っ
て配置され、該羽根の上面を構成する表面４反の裏側に
は吸音材を装着したので、騒音を減音さ・Ｌるごとがで
きる。In addition, as shown in Figures 10 and 11, if a wire mesh 90 is installed inside the soundproof ventilation system, this wire mesh 90 will prevent the water from splashing into the building. The width of the receiver 69 can be made smaller than the width of the water receiver 69 of the soundproof ventilation system shown in FIG. Reno with multiple blades in the upper and lower blade directions,
The LIJi surface of the blade is formed in an inverted V shape, and
They are arranged at a predetermined distance from each other so as not to form a horizontal passage, and a sound-absorbing material is attached to the back side of the four surfaces that make up the upper surface of the blade, making it possible to reduce noise. .
第１図は従来の防音換気装置の構造を示す断面図、第２
図は本発明に係る実施例の防音換気装置のｌ１ｌｉ血図
、第３図並びに第４図は本実施例に係る羽根の形状に夕
・１比される羽根の形状を示す断面図、第５図並びに第
６図は本発明に係る他の羽根の変形例をンＪ（ず断面図
、第７図は本発明に係る他の実施例の構造を示すｌｌｉ
而図面第８図は第７図で示す他の実施例の防音換気装置
の正面図、第９図は板ばねの形状を示す斜視図、第１０
図は本発明に係る他の実施例の構造をボず１υｉ １ｌ
ｔｊ図、第１１図は第１Ｏ図で２１＜シた実施例の正面
図である。
２４・・・建屋壁面、 ２６・・・辻通開Ｉ」部、 ３
２・・・羽根、 ３４・・・表面板、 ３ ［ｉ −吸
、′冒イ。
代理人 弁理士 松浦；と三
第１図
第２図
第３図
第４図
第６図Figure 1 is a sectional view showing the structure of a conventional soundproof ventilation system;
The figure is a blood diagram of a soundproof ventilation system according to an embodiment of the present invention, FIGS. Figures 6 and 6 are cross-sectional views of other modified examples of blades according to the present invention, and Figure 7 is a cross-sectional view showing the structure of another embodiment of the present invention.
FIG. 8 is a front view of the soundproof ventilation system of another embodiment shown in FIG. 7, FIG. 9 is a perspective view showing the shape of the leaf spring, and FIG.
The figure shows the structure of another embodiment of the present invention.
tj and FIG. 11 are front views of the embodiment in which 21<< is shown in FIG. 1O. 24...Building wall surface, 26...Tsujidori opening I" section, 3
2...Blade, 34...Surface plate, 3 [i-suction, 'exploitation. Agent Patent Attorney Tozo Matsuura Figure 1 Figure 2 Figure 3 Figure 4 Figure 6
Claims (1)
換気装置に於い′乙連通開口部に横方向に配置された羽
根を上下方向に複数本設け、該羽根は断面が逆Ｖ字形状
に形成されると共に、水平貫通路を形成しないように互
いに所定の間隔を保って配置され、該別（Ｒの上面を構
成する表面板の裏側には吸音祠が装着されていることを
特徴とする防音換気装置。'X%, In a soundproof ventilation system installed at a communication opening such as a door 1 or a duct, a plurality of blades arranged horizontally in the communication opening are provided in the vertical direction, and the blades have an inverted V cross section. They are formed in a letter shape and are arranged at a predetermined distance from each other so as not to form a horizontal passage, and a sound absorbing shrine is installed on the back side of the surface plate that forms the upper surface of R. Features a soundproof ventilation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59055780A JPS60199142A (en) | 1984-03-23 | 1984-03-23 | Sound-proof ventilation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59055780A JPS60199142A (en) | 1984-03-23 | 1984-03-23 | Sound-proof ventilation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60199142A true JPS60199142A (en) | 1985-10-08 |
Family
ID=13008405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59055780A Pending JPS60199142A (en) | 1984-03-23 | 1984-03-23 | Sound-proof ventilation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60199142A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0698178A (en) * | 1992-02-13 | 1994-04-08 | Fuji Xerox Co Ltd | Run length decoder |
| JP2008128607A (en) * | 2006-11-24 | 2008-06-05 | Sasakura Engineering Co Ltd | Louver and duct with louver |
| JP2008144996A (en) * | 2006-12-07 | 2008-06-26 | Mk Seiko Co Ltd | Silencer |
| JP2013234431A (en) * | 2012-05-07 | 2013-11-21 | Sekisui Jushi Co Ltd | Fence |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501791U (en) * | 1973-05-04 | 1975-01-09 | ||
| JPS5351613U (en) * | 1976-10-05 | 1978-05-02 |
-
1984
- 1984-03-23 JP JP59055780A patent/JPS60199142A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501791U (en) * | 1973-05-04 | 1975-01-09 | ||
| JPS5351613U (en) * | 1976-10-05 | 1978-05-02 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0698178A (en) * | 1992-02-13 | 1994-04-08 | Fuji Xerox Co Ltd | Run length decoder |
| JP2008128607A (en) * | 2006-11-24 | 2008-06-05 | Sasakura Engineering Co Ltd | Louver and duct with louver |
| JP2008144996A (en) * | 2006-12-07 | 2008-06-26 | Mk Seiko Co Ltd | Silencer |
| JP2013234431A (en) * | 2012-05-07 | 2013-11-21 | Sekisui Jushi Co Ltd | Fence |
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