JP2003202149A - Telescopic duct - Google Patents
Telescopic ductInfo
- Publication number
- JP2003202149A JP2003202149A JP2002313016A JP2002313016A JP2003202149A JP 2003202149 A JP2003202149 A JP 2003202149A JP 2002313016 A JP2002313016 A JP 2002313016A JP 2002313016 A JP2002313016 A JP 2002313016A JP 2003202149 A JP2003202149 A JP 2003202149A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- pipe
- spiral
- goby
- duct
- 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
- Joints Allowing Movement (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Duct Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、空調、排気用ダ
クトに用いる伸縮ダクトに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic duct used for air conditioning and exhaust ducts.
【０００２】[0002]
【従来の技術】スパイラル管は、特開平８−２９６８８
８号公報などに示されるように、帯状鉄板をらせん状に
巻回し、その継目をハゼ折り接合して製作されたもので
あり、このものは、一枚の鉄板を円筒状に屈曲して製作
されるロール管に比べて安価であり、空調、排気用ダク
トとして使用されている。また、ハゼ（継目ハゼ折り
部）が補強リブとなって、同一厚さの鉄板では、ロール
管に比べて機械的強度が高い。2. Description of the Related Art A spiral tube is disclosed in Japanese Patent Laid-Open No. 8-29688.
As disclosed in Japanese Patent Publication No. 8 etc., a strip-shaped iron plate is spirally wound, and its seam is joined by goby folding, which is manufactured by bending one iron plate into a cylindrical shape. It is cheaper than the roll tube used and is used as an air conditioning and exhaust duct. Further, the seam (joint seam fold) serves as a reinforcing rib, and an iron plate having the same thickness has higher mechanical strength than a roll tube.
【０００３】このスパイラル管を使用した伸縮ダクトに
は、内外管ともにスパイラル管、内管にスパイラル管、
外管にロール管、内管にロール管、外管にスパイラル管
を使用したもの等が考えられる。The expansion and contraction ducts using this spiral tube include a spiral tube for both the inner and outer tubes, a spiral tube for the inner tube,
It is possible to use a roll tube for the outer tube, a roll tube for the inner tube, and a spiral tube for the outer tube.
【０００４】[0004]
【発明が解決しようとする課題】これらのダクトは天井
裏に施設され、その施設作業において、これらのダクト
を傾けると、外管から内管が滑り落ちる恐れがあり、落
下すれば、下の作業者にその内管が当たってケガをする
場合がある。特に、一方の管がロール管の場合にはその
恐れが高い。このため、内管が落下しないようにして作
業をしなくてはならず、非常に煩わしい。These ducts are installed in the ceiling above the ceiling, and when the ducts are tilted in the work of the facility, the inner pipe may slip off from the outer pipe. The inner tube may hit and be injured. In particular, when one of the tubes is a roll tube, there is a high risk. For this reason, it is very troublesome to work so that the inner pipe does not drop.
【０００５】この発明は、上述の伸縮ダクトにおいて、
外管から内管が抜け落ちないようにすることを課題とす
る。The present invention relates to the above-mentioned telescopic duct,
The task is to prevent the inner pipe from falling out of the outer pipe.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、この発明は、外管の一側端内周面と、内管の他側端
外周面にそれぞれ突起を形成し、その両突起の係止によ
って、外管から内管をラップ代をもって抜け止めするよ
うにしたのである。In order to solve the above-mentioned problems, the present invention has projections formed on the inner peripheral surface of one end of the outer tube and the outer peripheral surface of the other end of the inner tube. The inner tube is prevented from coming off from the outer tube with a wrap margin by the locking of.
【０００７】このように、抜け止めがなされれば、例え
ば、天井作業において、このダクトを傾けても、内管が
滑り落ちる恐れがなく、下の作業者にその内管が当たっ
てケガをするなどの危惧もなくなる。また、ラップ代が
必ず確保でき、施工後に、ラップ代が足りないという恐
れもない。[0007] In this way, if the slip-out prevention is performed, for example, in ceiling work, even if the duct is tilted, there is no risk of the inner pipe slipping off, and the inner pipe hits the worker below and is injured. The fear of is gone. Also, the lap fee can be secured without fail, and there is no fear that the lap fee will be insufficient after the construction.
【０００８】[0008]
【発明の実施の形態】この発明に係る伸縮ダクトの実施
形態としては、内外管ともに、スパイラル管、内外管の
一方がスパイラル管、他方がロール管のものが考えら
れ、内外管ともにスパイラル管のものにあっては、外管
を外ハゼ構造、内管を内ハゼ構造とすれば、外管はその
内面に突起物がなく、一方、内管はその外面に突起物が
ないものとなる。このため、外管に内管を嵌めれば、隙
間なく嵌めることができ、空調、排気ダクトとして支障
のないものとなる。また、外管を内ハゼ構造、内管を外
ハゼ構造とすれば、両管をそのスパイラル状ハゼ継合部
をねじ合わせつつ回転させながら嵌め合わすことによ
り、そのハゼ継合部の係合で気密性が維持され、空調、
排気ダクトとして支障のないものとなる。BEST MODE FOR CARRYING OUT THE INVENTION As an embodiment of the expandable duct according to the present invention, it is conceivable that both the inner and outer pipes are spiral pipes, one of the inner and outer pipes is a spiral pipe, and the other is a roll pipe. If the outer tube has an outer goby structure and the inner tube has an inner goby structure, the outer tube has no protrusions on its inner surface, while the inner tube has no protrusions on its outer surface. For this reason, if the inner pipe is fitted to the outer pipe, the inner pipe can be fitted without a gap, and the air conditioner and the exhaust duct will not be hindered. Also, if the outer pipe has an inner goby structure and the inner pipe has an outer goby structure, both pipes can be engaged while the spiral goby joints are screwed together while being rotated, so that the gore joints can be engaged. Airtightness is maintained, air conditioning,
It will not hinder the exhaust duct.
【０００９】スパイラル管とロール管とから成るものに
あっては、外管がスパイラル管の場合はそのスパイラル
管を外ハゼ構造、内管がスパイラル管の場合にはそのス
パイラル管を内ハゼ構造とすれば、内外管の接触面（挿
入面）は突起がないものとなって、空調、排気ダクトと
して支障がないものとなる。In the case of a spiral tube and a roll tube, when the outer tube is a spiral tube, the spiral tube has an outer goby structure, and when the inner tube is a spiral tube, the spiral tube has an inner goby structure. By doing so, the contact surface (insertion surface) of the inner and outer pipes does not have a protrusion, and thus there is no problem as an air conditioning or exhaust duct.
【００１０】これらの伸縮ダクトにおいて、外管の一側
端内周面と、内管の他側端外周面にそれぞれ突起を形成
し、その両突起の係止によって、外管から内管をラップ
代をもって抜け止めする。その突起の形成手段として
は、パンチング、押し出しロールなどの周知の種々のも
のを採用し得る。In these telescopic ducts, protrusions are formed on the inner peripheral surface of one end of the outer pipe and the outer peripheral surface of the other end of the inner pipe, and the inner pipe is wrapped from the outer pipe by locking both protrusions. Prevent withdrawal. As the means for forming the protrusions, various well-known means such as punching and extrusion rolls can be adopted.
【００１１】[0011]
【実施例】図１乃至図４に一実施例を示し、スパイラル
管から成る外管１と内管２から成り、両管１、２は、呼
び径２００で２ｍｍ程の径差を持たせたほぼ同一長のも
のである。その外管１のハゼ部１ａは、帯状鉄板の一方
の継目を外側にコ字状に曲げ、他方の継目をそのコ字状
部を巻き込むように外側に曲げた外方に突出する外ハゼ
構造となり、一方、内管２のハゼ部２ａは、帯状鉄板の
一方の継目を内側にコ字状に曲げ、他方の継目をそのコ
字状部を巻き込むように内側に曲げた内方に突出する内
ハゼ構造となっている。このため、図２に示すように、
外管１に内管２を嵌めると、外管１に内管２が隙間な
く、ぴったり嵌まり、内管２を外管１にすっぽり挿入す
れば、最伸長時のほぼ２分の１の長さになる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment is shown in FIGS. 1 to 4, which is composed of an outer pipe 1 and an inner pipe 2 which are spiral pipes, and both pipes 1 and 2 have a nominal diameter of 200 and a diameter difference of about 2 mm. It has almost the same length. The goby portion 1a of the outer tube 1 is an outer goby structure in which one seam of a strip-shaped iron plate is bent outward in a U-shape, and the other seam is bent outward so as to wrap the U-shaped part. On the other hand, the goby portion 2a of the inner pipe 2 is bent inward at one seam of the strip-shaped iron plate inward and bent inward so that the other seam is wound around the U-shaped portion. It has an internal goby structure. Therefore, as shown in FIG.
When the inner tube 2 is fitted to the outer tube 1, the inner tube 2 is fitted tightly to the outer tube 1 without any gap, and if the inner tube 2 is completely inserted into the outer tube 1, the length is about one half of the maximum extension. It will be
【００１２】さらに、外管１にノッチ３、内管２に突条
４がそれぞれ形成され、そのノッチ３と突条４が係止す
ることにより、図３、図４に示すように、ラップ代Ｌを
もって抜け止めされる。ノッチ３は、外管１の表面から
パッチングする等により、その内面に形成する。突条４
は、内管２外周に紐４ａを巻き、その紐４ａをテープ４
ｂで固定することにより形成する。Further, a notch 3 is formed on the outer pipe 1 and a ridge 4 is formed on the inner pipe 2, respectively. By engaging the notch 3 and the ridge 4 with each other, as shown in FIGS. Hold L to prevent it from slipping out. The notch 3 is formed on the inner surface of the outer tube 1 by patching the surface of the outer tube 1 or the like. Ridge 4
Wrap a string 4a around the inner tube 2 and attach the string 4a to the tape 4
It is formed by fixing at b.
【００１３】図５乃至図１２に他の二実施例を示し、図
５乃至図８に示す実施例は、外ハゼ構造の外管１にロー
ル管から成る内管２を挿し込んだものであり、図９乃至
図１２に示す実施例は、内ハゼ構造の内管２をロール管
から成る外管１に挿し込んだものである。いずれの実施
例も外管１にノッチ３、内管２に突条４がそれぞれ形成
され、そのノッチ３と突条４が係止することにより、図
７、図８又は図１１、図１２に示すように、ラップ代Ｌ
をもって抜け止めされる。Another two embodiments are shown in FIGS. 5 to 12, and in the embodiments shown in FIGS. 5 to 8, an inner tube 2 made of a roll tube is inserted into an outer tube 1 having an outer goby structure. In the embodiment shown in FIGS. 9 to 12, an inner tube 2 having an inner goby structure is inserted into an outer tube 1 made of a roll tube. In each of the embodiments, the notch 3 is formed in the outer pipe 1 and the ridge 4 is formed in the inner pipe 2, and the notch 3 and the ridge 4 are engaged with each other. As shown, lap fee L
Is prevented from coming off.
【００１４】これらの実施例において、外管１に内管２
を挿入する手順として、図１、図５、図９矢印のごと
く、外管１の一側端（各図左端）から内管の他側端（同
右端）を、ノッチ３を突条４が無理に乗り越えるように
無理挿入してもよいが、ノッチ３のない外管１の他側端
から突起４のない内管２の一側端を挿入するのが好まし
い。In these embodiments, the outer tube 1 and the inner tube 2 are
As shown in FIG. 1, FIG. 5, and FIG. 9, the procedure for inserting is to insert the notch 3 from the one end (the left end in each figure) of the outer pipe 1 to the other end (the same right end) of the inner pipe to the ridge 4. Although it may be inserted by force so as to get over it, it is preferable to insert one end of the inner pipe 2 having no protrusion 4 from the other end of the outer pipe 1 having no notch 3.
【００１５】内外管２、１の突起４、３としては、ロー
ル押し出しによるひも加工により、図１３（ａ）、
（ｂ）に示すように全周に形成したり、図１４（ａ）、
（ｂ）に示すように、周囲間欠的に形成してもよい。全
周突起（突条）３、４、部分突起３、４、ノッチ３及び
紐４ａ巻き突条４は適宜に組み合わすことができる。突
起（突条、ノッチ）３、４の高さ（ひも高）は、抜け止
め効果を考慮して適宜に選定すればよいが、例えば１ｍ
ｍ程度とし得る。The projections 4 and 3 of the inner and outer tubes 2 and 1 are formed by stringing by roll extrusion, as shown in FIG.
As shown in FIG. 14 (b), it may be formed on the entire circumference, or as shown in FIG.
As shown in (b), it may be formed intermittently around the periphery. The full-circumferential projections (projections) 3, 4, the partial projections 3, 4, the notch 3 and the string 4a winding projection 4 can be appropriately combined. The height (string height) of the protrusions (protrusions, notches) 3 and 4 may be appropriately selected in consideration of the retaining effect, for example, 1 m.
It can be about m.
【００１６】因みに、図１５、図１６に示すように、外
管１を内ハゼ１ａ’、内管２を外ハゼ２ａ’としたもの
においては、その両ハゼ１ａ’、２ａ’のねじ合わせに
よって伸縮させることとなるため、そのねじ合いによ
り、抜け止め効果があり、突起３、４を設ける必要はな
いが、同図のように、設けてもよい。Incidentally, as shown in FIGS. 15 and 16, in the case where the outer pipe 1 is the inner goby 1a 'and the inner pipe 2 is the outer goby 2a', the two gobys 1a 'and 2a' are screwed together. Since it will be expanded and contracted, it has a retaining effect due to its screwing engagement, and it is not necessary to provide the projections 3 and 4, but they may be provided as shown in FIG.
【００１７】なお、内管２と外管１の長さ及び径はそれ
ぞれ任意である。また、外ハゼ構造のスパイラル管から
なる内管２をロール管からなる外管１に嵌め込んだ伸縮
ダクト、又は、ロール管からなる内管２を内ハゼ構造の
スパイラル管からなる外管１に嵌め込んだ伸縮ダクトで
あっても、空調、排気ダクトなどとして支障がなけれ
ば、その伸縮ダクトにこの発明の抜け止め構造を採用し
得る。因みに、内ハゼは、従来の外ハゼを製作する際の
各種ローラなどを管壁を中心にして対称に設置した機械
により製作する。The lengths and diameters of the inner pipe 2 and the outer pipe 1 are arbitrary. In addition, an expandable duct in which an inner tube 2 made of a spiral tube having an outer goby structure is fitted in an outer tube 1 made of a roll tube, or an inner tube 2 made of a roll tube is used as an outer tube 1 made of a spiral tube having an inner goby structure. Even if the telescopic duct is fitted, it does not hinder air conditioning, an exhaust duct, etc., and the retaining structure of the present invention can be applied to the telescopic duct. Incidentally, the inner goby is manufactured by a machine in which various rollers used for manufacturing the conventional outer goby are installed symmetrically around the tube wall.
【００１８】[0018]
【発明の効果】この発明は、以上のようにして、スパイ
ラル管を使用した伸縮ダクトにおいて、ラップ代をもっ
て抜け止めするようにしたので、内管が滑り落ちる恐れ
もなく、また、ラップ代が必ず確保される。As described above, according to the present invention, in the expansion duct using the spiral tube, the inner pipe is prevented from slipping off because the wrap margin is prevented from slipping off, and the lap margin is always secured. To be done.
【図１】一実施例の作用要部正面図FIG. 1 is a front view of a main part of an operation according to an embodiment.
【図２】同作用断面図FIG. 2 is a sectional view of the same action.
【図３】同作用断面図FIG. 3 is a sectional view of the same action.
【図４】同作用要部拡大断面図FIG. 4 is an enlarged cross-sectional view of the same action main part.
【図５】他の実施例の作用要部正面図FIG. 5 is a front view of an operation main part of another embodiment.
【図６】同作用断面図FIG. 6 is a sectional view of the same action.
【図７】同作用断面図FIG. 7 is a sectional view of the same action.
【図８】同作用要部拡大断面図FIG. 8 is an enlarged cross-sectional view of the same action main part.
【図９】他の実施例の作用要部正面図FIG. 9 is a front view of an operation main part of another embodiment.
【図１０】同作用断面図FIG. 10 is a sectional view of the same action.
【図１１】同作用断面図FIG. 11 is a sectional view showing the same action.
【図１２】同作用要部拡大断面図FIG. 12 is an enlarged cross-sectional view of the same action main part.
【図１３】他の実施例の要部断面図FIG. 13 is a cross-sectional view of main parts of another embodiment.
【図１４】他の実施例の要部断面図FIG. 14 is a cross-sectional view of main parts of another embodiment.
【図１５】他の実施例の作用要部正面図FIG. 15 is a front view of the action main part of another embodiment.
【図１６】同作用断面図FIG. 16 is a sectional view showing the same action.
１ 外管 １ａ、２ａ’ 外ハゼ ２ 内管 １ａ’、２ａ 内ハゼ ３ ノッチ（突条、突起） ４ 突条（突起） 1 outer tube 1a, 2a 'Outer goby 2 inner tube 1a ', 2a internal goby 3 Notches (ridges, protrusions) 4 ridges (projections)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 弓場 善弘 大阪市西区北堀江１丁目12番19号 株式会 社栗本鐵工所内 (72)発明者 菊本 一高 大阪市西区北堀江１丁目12番19号 株式会 社栗本鐵工所内 (72)発明者 石田 晃人 大阪市西区北堀江１丁目12番19号 株式会 社栗本鐵工所内 Ｆターム(参考） 3H104 JA08 JB02 JC08 JD02 KA04 KB03 3H111 AA01 BA01 CA03 CA09 DB11 EA09 3L080 AA08 AA09 AB03 AB08 AC00 AD01 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yoshihiro Yumiba 1-12-19 Kitahori, Nishi-ku, Osaka City Stock Association Kurimoto Ironworks (72) Inventor Kazumoto Kazutaka 1-12-19 Kitahori, Nishi-ku, Osaka City Stock Association Kurimoto Ironworks (72) Inventor Akihito Ishida 1-12-19 Kitahori, Nishi-ku, Osaka City Stock Association Kurimoto Ironworks F term (reference) 3H104 JA08 JB02 JC08 JD02 KA04 KB03 3H111 AA01 BA01 CA03 CA09 DB11 EA09 3L080 AA08 AA09 AB03 AB08 AC00 AD01
Claims (3)
た伸縮ダクトであって、その内外管２、１をスパイラル
管とし、その外管１の継目を外ハゼ１ａとするととも
に、内管２の継目を内ハゼ２ａとし、かつ、前記外管１
の一側端内周面に突起３を、内管２の他側端外周面に突
起４をそれぞれ形成し、その両突起３，４の係合によっ
て、外管１から内管２がラップ代Ｌをもって抜け止めが
なされるようにしたことを特徴とする伸縮ダクト。1. An expandable duct in which an inner pipe 2 is inserted into and removed from an outer pipe 1 such that the inner and outer pipes 2 and 1 are spiral pipes, and the joint of the outer pipe 1 is an outer goby 1a. The seam of the tube 2 is the inner goby 2a, and the outer tube 1 is
A protrusion 3 is formed on the inner peripheral surface of one end of the inner pipe 2, and a protrusion 4 is formed on the outer peripheral surface of the other end of the inner pipe 2. Telescopic duct characterized in that L is used to prevent it from coming off.
からなる内管２を抜き差し自在に嵌入した伸縮ダクトで
あって、その外管１の継目を外ハゼ１ａとし、かつ、外
管１の一側端内周面に突起３を、内管２の他側端外周面
に突起４をそれぞれ形成し、その両突起３，４の係合に
よって、外管１から内管２がラップ代Ｌをもって抜け止
めがなされるようにしたことを特徴とする伸縮ダクト。2. An expandable duct in which an inner pipe 2 made of a roll pipe is inserted into and removable from an outer pipe 1 made of a spiral pipe, the joint of the outer pipe 1 being an outer goby 1a, and A protrusion 3 is formed on the inner peripheral surface of one end, and a protrusion 4 is formed on the outer peripheral surface of the other end of the inner tube 2, and the protrusions 3 and 4 engage with each other so that the outer tube 1 to the inner tube 2 overlap with each other. A telescopic duct characterized in that it is designed so that it will not come off.
からなる内管２を抜き差し自在に嵌入した伸縮ダクトで
あって、その内管２の継目を内ハゼ２ａとし、かつ、前
記外管１の一側端内周面に突起３を、内管２の他側端外
周面に突起４をそれぞれ形成し、その両突起３，４の係
合によって、外管１から内管２がラップ代Ｌをもって抜
け止めがなされるようにしたことを特徴とする伸縮ダク
ト。3. An expandable duct in which an inner tube 2 made of a spiral tube is fitted into an outer tube 1 made of a roll tube so that the inner tube 2 can be freely inserted and removed, and the seam of the inner tube 2 serves as an inner goby 2a, and the outer tube 1 A protrusion 3 is formed on the inner peripheral surface of one end of the inner pipe 2, and a protrusion 4 is formed on the outer peripheral surface of the other end of the inner pipe 2. Telescopic duct characterized in that L is used to prevent it from coming off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002313016A JP2003202149A (en) | 2001-10-29 | 2002-10-28 | Telescopic duct |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001330167 | 2001-10-29 | ||
| JP2001-330167 | 2001-10-29 | ||
| JP2002313016A JP2003202149A (en) | 2001-10-29 | 2002-10-28 | Telescopic duct |
Publications (1)
| Publication Number | Publication Date |
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| JP2003202149A true JP2003202149A (en) | 2003-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002313016A Pending JP2003202149A (en) | 2001-10-29 | 2002-10-28 | Telescopic duct |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017040391A (en) * | 2015-08-18 | 2017-02-23 | 株式会社新富士空調 | Pipe connection structure |
| CN106896048A (en) * | 2017-04-01 | 2017-06-27 | 河海大学 | Geneva bottle and union thimble experimental rig for stablizing liquid level |
| JP2018112342A (en) * | 2017-01-11 | 2018-07-19 | 高砂熱学工業株式会社 | Duct joint, process of manufacture of duct joint, and construction method of duct joint |
| JP2019116176A (en) * | 2017-12-27 | 2019-07-18 | 株式会社クボタ | Work machine |
| JP2020112324A (en) * | 2019-01-15 | 2020-07-27 | 株式会社新富士空調 | Spiral duct connection structure and joint for spiral duct |
| JP2023509326A (en) * | 2019-12-11 | 2023-03-08 | ポスコホールディングス インコーポレーティッド | Spiral tube |
| US11781291B2 (en) | 2017-12-27 | 2023-10-10 | Kubota Corporation | Working machine and manufacturing method of the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62115635U (en) * | 1986-01-13 | 1987-07-23 | ||
| JPS62145056U (en) * | 1986-03-10 | 1987-09-12 | ||
| JPH0872143A (en) * | 1994-09-07 | 1996-03-19 | Terumo Corp | Expansible tube and composite tube and catheter tube using the same |
| JP2001112602A (en) * | 1999-10-21 | 2001-04-24 | Morito Co Ltd | Prop |
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2002
- 2002-10-28 JP JP2002313016A patent/JP2003202149A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62115635U (en) * | 1986-01-13 | 1987-07-23 | ||
| JPS62145056U (en) * | 1986-03-10 | 1987-09-12 | ||
| JPH0872143A (en) * | 1994-09-07 | 1996-03-19 | Terumo Corp | Expansible tube and composite tube and catheter tube using the same |
| JP2001112602A (en) * | 1999-10-21 | 2001-04-24 | Morito Co Ltd | Prop |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017040391A (en) * | 2015-08-18 | 2017-02-23 | 株式会社新富士空調 | Pipe connection structure |
| JP2018112342A (en) * | 2017-01-11 | 2018-07-19 | 高砂熱学工業株式会社 | Duct joint, process of manufacture of duct joint, and construction method of duct joint |
| CN106896048A (en) * | 2017-04-01 | 2017-06-27 | 河海大学 | Geneva bottle and union thimble experimental rig for stablizing liquid level |
| CN106896048B (en) * | 2017-04-01 | 2023-12-22 | 河海大学 | Marshall bottle and double-lantern ring test device for stabilizing liquid level |
| JP2019116176A (en) * | 2017-12-27 | 2019-07-18 | 株式会社クボタ | Work machine |
| JP7158851B2 (en) | 2017-12-27 | 2022-10-24 | 株式会社クボタ | work machine |
| US11781291B2 (en) | 2017-12-27 | 2023-10-10 | Kubota Corporation | Working machine and manufacturing method of the same |
| JP2020112324A (en) * | 2019-01-15 | 2020-07-27 | 株式会社新富士空調 | Spiral duct connection structure and joint for spiral duct |
| JP7258300B2 (en) | 2019-01-15 | 2023-04-17 | 株式会社新富士空調 | Spiral duct connection structure |
| JP2023509326A (en) * | 2019-12-11 | 2023-03-08 | ポスコホールディングス インコーポレーティッド | Spiral tube |
| JP7496874B2 (en) | 2019-12-11 | 2024-06-12 | ポスコホールディングス インコーポレーティッド | Spiral tube |
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