JP4731213B2 - Liquid reducing agent injection hose - Google Patents

Liquid reducing agent injection hose Download PDF

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Publication number
JP4731213B2
JP4731213B2 JP2005177480A JP2005177480A JP4731213B2 JP 4731213 B2 JP4731213 B2 JP 4731213B2 JP 2005177480 A JP2005177480 A JP 2005177480A JP 2005177480 A JP2005177480 A JP 2005177480A JP 4731213 B2 JP4731213 B2 JP 4731213B2
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end portion
peripheral surface
base end
reducing agent
liquid reducing
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JP2006349083A (en
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貴男 星野
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UD Trucks Corp
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UD Trucks Corp
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Priority to JP2005177480A priority Critical patent/JP4731213B2/en
Application filed by UD Trucks Corp filed Critical UD Trucks Corp
Priority to AU2006258729A priority patent/AU2006258729B8/en
Priority to KR1020087001213A priority patent/KR101288705B1/en
Priority to CNB2006800216118A priority patent/CN100540972C/en
Priority to PCT/JP2006/311526 priority patent/WO2006134826A1/en
Priority to NZ565142A priority patent/NZ565142A/en
Priority to TW095121509A priority patent/TWI362448B/en
Publication of JP2006349083A publication Critical patent/JP2006349083A/en
Priority to HK08111463.7A priority patent/HK1115912A1/en
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Publication of JP4731213B2 publication Critical patent/JP4731213B2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L31/00—Arrangements for connecting hoses to one another or to flexible sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/38—Devices for discharging contents
    • B65D25/40—Nozzles or spouts
    • B65D25/48—Separable nozzles or spouts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/003—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets devices for holding the open end of a hose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/28—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses for hoses with one end terminating in a radial flange or collar

Description

本発明は、液体還元剤を用いて排気中の窒素酸化物（ＮＯｘ）を還元浄化する排気浄化装置に関し、その液体還元剤の貯蔵容器へ液体還元剤を補充するために使用する注入用のホースに関する。   The present invention relates to an exhaust purification device that reduces and purifies nitrogen oxides (NOx) in exhaust using a liquid reducing agent, and relates to an injection hose used to replenish the liquid reducing agent in a storage container for the liquid reducing agent. About.

エンジンの排気に含まれるＮＯｘを除去する触媒浄化システムとして、エンジン排気系に配設された還元触媒の上流側に、コントロールユニットにより制御される還元剤供給装置を介してエンジン運転状態に応じた必要量の液体還元剤を噴射供給することで、排気中のＮＯｘと液体還元剤とを触媒還元反応させて、ＮＯｘを無害成分に浄化処理する排気浄化装置が提案されている。その還元反応は、ＮＯｘとの反応が良好なアンモニアを用いるものが主流で、液体還元剤としては、排気熱及び排気中の水蒸気により加水分解してアンモニアを発生する尿素水溶液が主に用いられる。このような尿素水溶液等の液体還元剤は、車載された専用の貯蔵容器に溜められている。   As a catalyst purification system for removing NOx contained in engine exhaust, it is necessary according to the engine operating state via a reducing agent supply device controlled by a control unit on the upstream side of the reduction catalyst disposed in the engine exhaust system. There has been proposed an exhaust purification device that purifies NOx into a harmless component by injecting and supplying an amount of liquid reducing agent to cause a catalytic reduction reaction between NOx in the exhaust and the liquid reducing agent. The reduction reaction mainly uses ammonia that has a good reaction with NOx, and the liquid reducing agent is mainly a urea aqueous solution that is hydrolyzed by exhaust heat and water vapor in the exhaust to generate ammonia. Such a liquid reducing agent such as an aqueous urea solution is stored in a dedicated storage container mounted on the vehicle.

当然ながら、車両の走行と共に貯蔵容器内の液体還元剤は減っていくので補充する必要があり、補充に際しては、所定容量の手持ちタンク（たとえば灯油用と同様のポリ容器や、内部に樹脂製の袋を内張した段ボール製のもの等）に入れて提供される新規の液体還元剤を、手作業で貯蔵容器へ注入するようにしている。
液体還元剤の入ったタンクは、注出口に可撓性の注入用ホースを取り付けられるようになっており、液体還元剤を注入し終えた後には該注入用ホースを取り外し、次回補充時の液体還元剤タンクに使い回すことができるようにしてある。その取り外した注入用ホースは、次回の使用時まで汚れたりホコリが内部に入らないようにしておく必要がある。しかし、特許文献１にあるように、基端部をタンクに取り付けたままの蛇腹式ホースについて全体にカバーを被せるというような保管手法は考えられているが、タンクから取り外したホースに適した保管手法は今のところ提案されていない。
特開平８−１５６９２８号公報 Of course, the liquid reducing agent in the storage container decreases as the vehicle travels, so it must be replenished. When refilling, a hand-held tank of a predetermined capacity (for example, a plastic container similar to that for kerosene, or a resin container inside) A new liquid reducing agent provided in a cardboard lined bag) is manually injected into the storage container.
The tank containing the liquid reducing agent can be fitted with a flexible injection hose at the spout, and after the liquid reducing agent has been injected, the injection hose is removed and the liquid used for the next refilling is removed. It can be reused in the reducing agent tank. It is necessary to keep the removed injection hose free from dirt and dust until the next use. However, as disclosed in Patent Document 1, a storage technique such as covering the entire bellows type hose with the base end attached to the tank is considered, but storage suitable for the hose removed from the tank No method has been proposed so far.
Japanese Patent Laid-Open No. 8-156928

排気浄化装置に使用される液体還元剤は、JASOE502で規定されている性状規格を遵守する必要があり、ゴミ、ホコリ、油等の異物の混入は厳禁である。しかしながら、液体還元剤の補充に際しては上記のように注入用ホースを使い回しにするのが常態化しており、液体還元剤タンクから取り外した注入用ホースをむき出しで保管してあると、その開口から内部へ異物が容易に入り込めてしまう。ホースの内部に入り込んでしまった異物は補充作業時に発見されにくく、液体還元剤に混入してしまう可能性が高い。   The liquid reducing agent used in the exhaust emission control device must comply with the property standards stipulated in JASOE502, and it is strictly prohibited to mix foreign substances such as dust, dust and oil. However, when replenishing the liquid reducing agent, it is normal to use the injection hose as described above, and if the injection hose removed from the liquid reducing agent tank is stored open, Foreign matter can easily enter inside. Foreign matter that has entered the inside of the hose is less likely to be found during replenishment work and is likely to be mixed into the liquid reducing agent.

そこで、取り外した注入用ホースの両端部開口を少なくともホコリなどの異物が入らない程度に塞いでホース内側を外部へ連通させない、つまりホース内部を、少なくとも異物が入らない程度に閉鎖した閉鎖空間の状態として、保管しなければならない。しかしながら、特許文献１のような全体を覆うカバーを変形応用したのでは、カバーが別制作となってコスト的に見合わなくなってしまい、採用するのは難しい。   Therefore, the opening of both ends of the removed injection hose is closed so that at least foreign matter such as dust does not enter and the inside of the hose is not communicated to the outside. As it must be stored. However, if the cover that covers the whole as in Patent Document 1 is modified and applied, the cover becomes a separate production and is not suitable for cost, and is difficult to adopt.

本発明は、このような技術背景に基づいて、追加コストをかけることなく、タンクから取り外した注入用ホースを適切且つ簡単に保管できるようにすることを目的とする。   An object of the present invention is to make it possible to appropriately and easily store an injection hose removed from a tank without incurring additional costs based on such a technical background.

この目的のために本発明は、液体還元剤タンクの注出口に取り付ける基端部と、液体還元剤を注入する貯蔵容器の注入口へ差し入れる先端部と、これら基端部と先端部との間の可撓性の中空本体と、を備え、その基端部又は先端部のいずれか一方の外周面に少なくとも１本の凸条（又は凹条）が周設されると共に該基端部又は先端部のいずれか他方の内周面に少なくとも１本の凹条（又は凸条）が周設され、前記外周面に凸条（又は凹条）を周設した基端部又は先端部を、前記内周面に凹条（又は凸条）を周設した先端部又は基端部の端面開口から当該先端部又は基端部内へ挿入して前記凸条と前記凹条とを係合させることにより、前記両端部を繋いで環状にし、前記中空本体の内部を閉鎖した空間とすることができるようにしたことを特徴とする液体還元剤注入用ホースを提案する。 For this purpose, the present invention provides a base end portion to be attached to the outlet of the liquid reducing agent tank, a distal end portion to be inserted into the inlet of the storage container for injecting the liquid reducing agent, and the base end portion and the distal end portion. A flexible hollow main body, and at least one protrusion (or recess) is provided on the outer peripheral surface of either the base end portion or the tip end portion, and the base end portion or At least one concave strip (or convex strip) is provided around the other inner peripheral surface of the tip portion, and a base end portion or a distal end portion provided with a convex strip (or concave strip) around the outer peripheral surface, Inserting into the front end or the base end from the end face opening of the front end or the base end with the recess (or convex streak) provided on the inner peripheral surface, and engaging the convex with the concave streak Accordingly, characterized in that said end portions to connect at annular were to be able to internally closed space of the hollow body To propose a liquid reducing agent injection hose.

この本発明の注入用ホースは、タンクから取り外した後、凸条及び凹条を係合させることで基端部と先端部つまり両端部どうしを繋ぎ合わせて環状（無端状）とすることができ、中空本体内部を、少なくともホコリなどの異物が入らない程度の閉鎖空間とした状態で保管することができる。   The hose for injection according to the present invention can be formed into an annular shape (endless shape) by connecting the proximal end portion and the distal end portion, that is, both end portions, by engaging the protruding line and the recessed line after being removed from the tank. The interior of the hollow body can be stored in a state in which the hollow body is at least a closed space that does not contain foreign matter such as dust.

本発明によれば、基端部及び先端部に凸条又は凹条を周設するだけなので、若干の金型修正だけで対応することができ、開口カバーなど新たな部品等を要せず追加コストが発生しないで済む。そして、使い終わってタンクから外した注入用ホースの基端部と先端部を凹凸条により所謂“スナップフィット”の感覚で係合させるだけで、簡単に異物浸入を防ぐ適切な保管状態とすることができる。したがって、従来の課題を解決し、排気浄化装置の液体還元剤用に最適な注入用ホースが提供される。   According to the present invention, since only protrusions or recesses are provided around the base end portion and the tip end portion, it is possible to cope with only a slight mold correction, and no additional parts such as an opening cover are required. There is no cost. And, by simply engaging the proximal end and the distal end of the injection hose that has been used and removed from the tank with a rugged ridge like a so-called “snap fit”, it is possible to easily put in an appropriate storage state that prevents foreign matter from entering. Can do. Therefore, the conventional problem is solved, and an injection hose optimal for the liquid reducing agent of the exhaust gas purification apparatus is provided.

本発明の好適な実施形態について図面を参照して説明する。本実施形態に係る注入用ホースにつき、伸ばした状態で図１に、環状に係合させた状態で図２に、それぞれ概略的に示している。
注入用ホース１は、液体還元剤の入った手持ちタンクの注出口（図示略）に取り付けるための基端部２と、液体還元剤を注入する排気浄化装置の貯蔵容器の注入口（図示略）へ差し入れるための先端部３と、基端部２と先端部３との間の可撓性の中空本体４と、を備えている。中空本体４は、本例では蛇腹式で自在に曲げられるようになっている。蛇腹式以外にも、ゴム等の弾性体や肉薄の樹脂製とするなどで可撓性を持たせたものでもよいが、液体還元剤に影響しない素材を使用する必要があるので、当該素材により蛇腹式に形成して肉厚及び強度を稼ぐ構造が適している。 Preferred embodiments of the present invention will be described with reference to the drawings. The injection hose according to the present embodiment is schematically shown in FIG. 1 in an extended state and in FIG. 2 in an annularly engaged state.
The injection hose 1 includes a base end 2 for attaching to a spout (not shown) of a hand-held tank containing a liquid reducing agent, and an inlet (not shown) of a storage container of an exhaust purification apparatus for injecting the liquid reducing agent. And a flexible hollow body 4 between the proximal end portion 2 and the distal end portion 3. In this example, the hollow body 4 is a bellows type and can be bent freely. In addition to the bellows type, it may be made flexible by making it an elastic body such as rubber or a thin resin, but it is necessary to use a material that does not affect the liquid reducing agent. A structure that is formed in a bellows type and gains thickness and strength is suitable.

基端部２は、タンク注出口の内径に嵌合する外径の大径部分２ａと、該大径部分２ａから徐々に先細りになった漏斗部分２ｂと、からなり、該漏斗部分２ｂの末端内周面に凹条２ｃが周設されている。ただし、凹条２ｃは図示の位置、すなわち基端部２と中空本体４との境界位置に設けるものに限られるわけではない。また、本例の凹条２ｃの内径は中空本体４の内径よりも大径にしてあり、先端部３がこれ以上奥に入らないようになっているが、場合によっては中空本体４と同径あるいは小径とすることもできる。   The base end portion 2 includes an outer diameter large-diameter portion 2a that fits into the inner diameter of the tank outlet, and a funnel portion 2b that gradually tapers from the large-diameter portion 2a. A recess 2c is provided around the inner peripheral surface. However, the recess 2 c is not limited to the position shown in the figure, that is, the one provided at the boundary position between the base end 2 and the hollow body 4. In addition, the inner diameter of the recess 2c of this example is larger than the inner diameter of the hollow body 4 so that the distal end portion 3 does not enter further inside. Or it can also be made into a small diameter.

基端部２の大径部分２ａには、その外周面に、タンク注出口の内周面に対応して設けられる段差に係止して、注入中にホース１が容易には抜け落ちないようにする係止段差２ｄが周設されている。また、大径部分２ａと漏斗部分２ｂとの境をなすようにしてフランジ２ｅが外周面に周設されており、大径部分２ａをタンク注出口に嵌め込んだときに該注出口の縁に当接し、これ以上奥に入らないようにするストッパ及び隙間を塞ぐ蓋の役割をするようにしてある。   The large-diameter portion 2a of the base end 2 is engaged with a step provided on the outer peripheral surface thereof corresponding to the inner peripheral surface of the tank outlet so that the hose 1 does not easily fall off during injection. A locking step 2d is provided around. In addition, a flange 2e is provided on the outer peripheral surface so as to make a boundary between the large diameter portion 2a and the funnel portion 2b. When the large diameter portion 2a is fitted into the tank outlet, It acts as a stopper that abuts and prevents any further penetration and a lid that closes the gap.

先端部３は、可撓性である必要はなく、かえって剛性があったほうが好ましいので、中空本体４よりも肉厚の筒状に形成されている。そして、その先端外周面に、基端部２の凹条２ｃと係合する凸条３ａが周設されている。ただし、凸条３ａの位置はこれに限らず、先端部３の中間部位等でもよい。
なお、本例に示すのは、基端部２の内周面に凹条２ｃを周設し、先端部３の外周面に凸条３ａを周設する例であるが、この逆に、基端部２の内周面に凸条を周設し、先端部３の外周面に凹条を周設するようにしてもよい。また、凸条及び凹条は２本以上周設して係合力を高めることもできる。さらに、基端部２の径が先端部３の径よりも小径の場合もあり得るが、この場合には、より大径のほうの先端部３の内周面に凸条又は凹条を周設し、より小径のほうの基端部２の外周面に凹条又は凸条を周設すればよい。 The distal end portion 3 does not need to be flexible, but rather has rigidity, and thus is formed in a cylindrical shape that is thicker than the hollow body 4. And the protruding item | line 3a engaged with the concave item 2c of the base end part 2 is provided in the front-end | tip outer peripheral surface. However, the position of the ridge 3a is not limited to this, and may be an intermediate portion of the tip 3 or the like.
In this example, the recess 2c is provided around the inner peripheral surface of the base end portion 2, and the protrusion 3a is provided around the outer peripheral surface of the distal end portion 3. A protruding line may be provided around the inner peripheral surface of the end 2, and a concave line may be provided around the outer peripheral surface of the tip 3. Also, two or more ridges and ridges can be provided around to increase the engagement force. Further, the diameter of the base end portion 2 may be smaller than the diameter of the tip end portion 3, but in this case, a ridge or a groove is surrounded on the inner peripheral surface of the tip end portion 3 having a larger diameter. It is only necessary to provide a recess or protrusion on the outer peripheral surface of the base end portion 2 having a smaller diameter.

当該注入用ホース１は、液体還元剤タンクに取り付けての使用時には、図１に示すごとく伸ばした状態で用いる。一方、使い終わってタンクから取り外した後の保管時には、図２に示すごとく環状にして保管する。すなわち、中空本体４を折り曲げて先端部３を基端部２内へ、該基端部２の端面開口から挿入し、その凸条３ａを凹条２ｃにスナップフィット感覚で係合させることで、両端部２，３を繋ぎ合わせて環状（基端部２と先端部３が繋がった無端状）にし、所定の保管場所へ収納する。これにより、中空本体４の内部はホコリ等の異物が入らない程度に閉鎖された空間となる。さらにたとえば、凹条２ｃの内面にゴムパッキン等を施して密着性を高めるなどすれば、液密、気密状態を作り出すことも可能である。 The injection hose 1 is used in a stretched state as shown in FIG. 1 when it is attached to a liquid reducing agent tank. On the other hand, at the time of storage after use and removal from the tank, it is stored in an annular shape as shown in FIG. That is, by bending the hollow body 4 and inserting the distal end portion 3 into the proximal end portion 2 from the end face opening of the proximal end portion 2 and engaging the protruding strip 3a with the recessed strip 2c in a snap-fit manner, Both end portions 2 and 3 are connected to form an annular shape (an endless shape in which the base end portion 2 and the tip end portion 3 are connected) and stored in a predetermined storage location. Thereby, the inside of the hollow main body 4 becomes a space closed to the extent that foreign matters such as dust do not enter. Furthermore, for example, if a rubber packing or the like is applied to the inner surface of the recess 2c to improve the adhesion, it is possible to create a liquid-tight or air-tight state.

保管場所は、たとえば未使用タンクの取っ手に中空本体４をくぐらせて引っかけておくような例もいいが、図２に示すように、中空本体４の外周面上所定部位にフック５を装着し、該フック５により所定の保管位置へ吊り下げるようにするとよい。フック５はゴム紐等の弾性輪５ａにより所定部位に動かないように装着してあり、凸条３ａと凹条２ｃとを係合させて環状としたホース１をフック５により吊り下げた時には、内周面に凹条２ｃを形成した基端部２（つまり径の大きいほうの端部）の開口が図示のように下向きになるようにして保管できるようになっている。口を開いている基端部２を下向にしておくことにより、ホコリ等の異物付着を極力抑えることができる。   The storage place may be an example in which the hollow body 4 is passed through the handle of an unused tank and hooked, but as shown in FIG. 2, a hook 5 is attached to a predetermined portion on the outer peripheral surface of the hollow body 4. The hook 5 may be hung to a predetermined storage position. The hook 5 is mounted so as not to move to a predetermined site by an elastic ring 5a such as a rubber string, and when the hose 1 having an annular shape by engaging the protrusion 3a and the recess 2c is suspended by the hook 5, The base end portion 2 (that is, the end portion having the larger diameter) having the recess 2c formed on the inner peripheral surface can be stored with the opening facing downward as shown in the figure. By keeping the base end 2 with the mouth open downward, it is possible to suppress adhesion of foreign matters such as dust as much as possible.

なお、応用例として、図１に示す使用時に基端部２を凹条２ｃを残して切り取り、別のホース１の先端部３の凸条３ａを当該凹条２ｃへ係合させることにより、ホース１を複数本つないで所望の長さに延長して使用することも可能である。   As an application example, the base end portion 2 is cut off while leaving the concave strip 2c at the time of use shown in FIG. 1, and the convex strip 3a of the distal end portion 3 of another hose 1 is engaged with the concave strip 2c. It is also possible to extend a desired length by connecting a plurality of ones.

本発明の一実施形態に係る注入用ホースを伸ばした状態で示す一部断面を含む外観図。The external view containing the partial cross section shown in the state which extended the hose for injection which concerns on one Embodiment of this invention. 図１の注入用ホースを環状にした状態で示す外観図。The external view shown in the state which made the injection hose of FIG. 1 cyclic | annular.

符号の説明Explanation of symbols

１ 注入用ホース
２ 基端部
２ｃ 凹条
３ 先端部
３ａ 凸条
４ 中空本体
５ フック DESCRIPTION OF SYMBOLS 1 Injection hose 2 Base end part 2c Concave 3 Tip part 3a Convex 4 Hollow main body 5 Hook

Claims (5)

液体還元剤タンクの注出口に取り付ける基端部と、液体還元剤を注入する貯蔵容器の注入口へ差し入れる先端部と、これら基端部と先端部との間の可撓性の中空本体と、を備え、
前記基端部又は前記先端部のいずれか一方の外周面に少なくとも１本の凸条が周設されると共に該基端部又は先端部のいずれか他方の内周面に少なくとも１本の凹条が周設され、
前記外周面に凸条を周設した基端部又は先端部を、前記内周面に凹条を周設した先端部又は基端部の端面開口から当該先端部又は基端部内へ挿入して前記凸条と前記凹条とを係合させることにより、前記両端部を繋いで環状にし、前記中空本体の内部を閉鎖した空間とすることができるようにしたことを特徴とする液体還元剤注入用ホース。 A base end portion to be attached to the outlet of the liquid reducing agent tank, a distal end portion to be inserted into an inlet of a storage container for injecting the liquid reducing agent, and a flexible hollow body between the proximal end portion and the distal end portion; With
At least one protrusion is provided around the outer peripheral surface of either the base end portion or the tip end portion, and at least one concave strip is provided on the other inner peripheral surface of the base end portion or the tip end portion. Around
Inserting a base end or a tip end with a ridge around the outer peripheral surface into the tip end or base end from an end face opening of the tip or base end with a recess around the inner peripheral surface Liquid reductant injection, characterized in that by engaging the ridges and the ridges, both ends are connected to form an annular shape, and the inside of the hollow body can be closed. For hose. 前記凹条の内径が、前記中空本体の内径よりも大径にされていることを特徴とする請求項１記載の液体還元剤注入用ホース。The liquid reducing agent injecting hose according to claim 1, wherein an inner diameter of the recess is larger than an inner diameter of the hollow body. 前記中空本体の外周面の所定部位にフックを装着し、前記両端部を繋いで環状にした時に、前記フックにより、前記内周面に凹条を周設した基端部又は先端部の開口が下向きになるようにして吊り下げられるようにしたことを特徴とする請求項１記載の液体還元剤注入用ホース。 When a hook is attached to a predetermined portion of the outer peripheral surface of the hollow main body and the both end portions are connected to form an annular shape, the hook opens an opening at the base end portion or the distal end portion that has a recess on the inner peripheral surface. 2. The liquid reducing agent injection hose according to claim 1, wherein the hose is hung downward. 液体還元剤タンクの注出口に取り付ける基端部と、液体還元剤を注入する貯蔵容器の注入口へ差し入れる先端部と、これら基端部と先端部との間の可撓性の中空本体と、を備え、
前記基端部又は前記先端部のいずれか一方の外周面に少なくとも１本の凹条が周設されると共に該基端部又は先端部のいずれか他方の内周面に少なくとも１本の凸条が周設され、
前記外周面に凹条を周設した基端部又は先端部を、前記内周面に凸条を周設した先端部又は基端部の端面開口から当該先端部又は基端部内へ挿入して前記凹条と前記凸条とを係合させることにより、前記両端部を繋いで環状にし、前記中空本体の内部を閉鎖した空間とすることができるようにしたことを特徴とする液体還元剤注入用ホース。 A base end portion to be attached to the outlet of the liquid reducing agent tank, a distal end portion to be inserted into an inlet of a storage container for injecting the liquid reducing agent, and a flexible hollow body between the proximal end portion and the distal end portion; With
At least one groove is provided on the outer peripheral surface of either the base end portion or the tip end portion, and at least one protrusion is provided on the other inner peripheral surface of the base end portion or the tip end portion. Around
Inserting a base end or tip end with a recess on the outer peripheral surface into the tip end or base end from an end surface opening of the tip or base end with a protrusion on the inner peripheral surface Liquid reductant injection, characterized in that by engaging the concave line and the convex line, the both ends are connected to form an annular shape, and the inside of the hollow body can be closed. For hose. 前記中空本体の外周面の所定部位にフックを装着し、前記両端部を繋いで環状にした時に、前記フックにより、前記内周面に凸条を周設した基端部又は先端部の開口が下向きになるようにして吊り下げられるようにしたことを特徴とする請求項４記載の液体還元剤注入用ホース。 When a hook is attached to a predetermined portion of the outer peripheral surface of the hollow main body and the both end portions are connected to form an annular shape, the hook opens an opening at the base end portion or the distal end portion with a ridge around the inner peripheral surface. The liquid reducing agent injection hose according to claim 4 , wherein the hose is suspended so as to face downward.
JP2005177480A 2005-06-17 2005-06-17 Liquid reducing agent injection hose Expired - Fee Related JP4731213B2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2005177480A JP4731213B2 (en) 2005-06-17 2005-06-17 Liquid reducing agent injection hose
KR1020087001213A KR101288705B1 (en) 2005-06-17 2006-06-08 Hose for pouring liquid reducing agent
CNB2006800216118A CN100540972C (en) 2005-06-17 2006-06-08 Hose for pouring liquid reducing agent
PCT/JP2006/311526 WO2006134826A1 (en) 2005-06-17 2006-06-08 Hose for pouring liquid reducing agent
AU2006258729A AU2006258729B8 (en) 2005-06-17 2006-06-08 Liquid reducing agent injection hose
NZ565142A NZ565142A (en) 2005-06-17 2006-06-08 Hose for transferring liquid reducing agent
TW095121509A TWI362448B (en) 2005-06-17 2006-06-16 Hose for transferring liquid reducer
HK08111463.7A HK1115912A1 (en) 2005-06-17 2008-10-16 Hose for pouring liquid reducing agent

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JP4731213B2 true JP4731213B2 (en) 2011-07-20

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KR100941272B1 (en) * 2008-03-31 2010-02-11 현대자동차주식회사 Reductant delivery system of a vehicle
JP5784425B2 (en) * 2011-09-06 2015-09-24 日野自動車株式会社 Breather hose for urea water tank

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TW200714795A (en) 2007-04-16

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