JP2016063782A - Liquid tank with strainer - Google Patents

Liquid tank with strainer Download PDF

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JP2016063782A
JP2016063782A JP2014194971A JP2014194971A JP2016063782A JP 2016063782 A JP2016063782 A JP 2016063782A JP 2014194971 A JP2014194971 A JP 2014194971A JP 2014194971 A JP2014194971 A JP 2014194971A JP 2016063782 A JP2016063782 A JP 2016063782A
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strainer
liquid tank
liquid
cylindrical
preventing member
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JP6622954B2 (en
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岡田　宏高
Hirotaka Okada
宏高 岡田
哲也 吉岡
Tetsuya Yoshioka
哲也 吉岡
勤也 袴塚
Kinya Hakamazuka
勤也 袴塚
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Yamabiko Corp
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Yamabiko Corp
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Priority to BR102015023976-9A priority patent/BR102015023976B1/en
Priority to MX2015013509A priority patent/MX2015013509A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Catching Or Destruction (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Nozzles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a liquid tank with a strainer, which can suppress a leakage of or scatter from a liquid tank at a liquid injection time by a simple construction, when a liquid such as a chemical liquid of agricultural chemical or water is injected into a liquid tank having a strainer attached thereto, so that said liquid can be reliably injected into the liquid tank whereby the workability of the operator can be drastically enhanced.SOLUTION: A liquid tank comprises: a tank body 2 having an inlet 5; a strainer 10 having a cylindrical part 12 held in the inlet 5 and a filter part 14 disposed in the lower end side opening 12b of the cylindrical part 12. In the cylindrical part 12 of the strainer 10, there is arranged a rebound preventing member 20 having a ramp 22 extending downward of the inner side of the cylindrical part 12.SELECTED DRAWING: Figure 1

Description

本発明は、ストレーナ付き液体タンクに係り、例えば噴霧機や散布機等に搭載され、薬液等の液体に含まれる異物を除去するストレーナが注入口に装着された液体タンクに関する。   The present invention relates to a liquid tank with a strainer, for example, a liquid tank that is mounted on a sprayer, a spreader, or the like and has a strainer that removes foreign matters contained in a liquid such as a chemical solution attached to an inlet.

従来、農薬等の薬液や水を農作物や植物等に噴霧もしくは散布する噴霧機や散布機等の作業機として、背負式のものや手持ち式のものが知られている。この種の携帯式作業機では、薬液や水を貯留するための液体タンクと共に、当該液体タンク内の薬液や水を噴霧手段としてのノズルに圧送するポンプが一体的に搭載されている。作業者は、液体タンクに設けられた注入口を介して当該液体タンクに薬液や水を注入し、手動や電動、エンジン等でポンプを駆動して、液体タンク内の薬液や水をノズルを介して農作物や植物等に噴霧もしくは散布できるようになっている（例えば、特許文献１〜３）。   2. Description of the Related Art Conventionally, as a working machine such as a sprayer or a sprayer for spraying or spraying a chemical solution or water such as agricultural chemicals on a crop or a plant, a backpack type or a handheld type is known. In this type of portable work machine, a pump for pumping the chemical liquid and water in the liquid tank to a nozzle as a spraying unit is integrally mounted together with a liquid tank for storing the chemical liquid and water. An operator injects chemical liquid or water into the liquid tank through an inlet provided in the liquid tank, and drives the pump manually or electrically, with an engine or the like, and supplies the chemical liquid or water in the liquid tank through the nozzle. Thus, it can be sprayed or sprayed on agricultural products or plants (for example, Patent Documents 1 to 3).

また、この種の作業機として、ポンプ内への異物の侵入によって引き起こされる故障等の問題に対処すべく、液体タンクに貯留される薬液や水等の液体を濾過するストレーナ（濾過器）が設けられたものが知られている。特許文献４、５には、液体タンクに注ぎ込まれる薬液や水等の液体を濾過するべく、注入口にストレーナが取り付けられた液体タンクが開示されている。特許文献４、５に開示される液体タンクでは、注入口に取り付けられたストレーナにて液体タンクに注ぎ込まれる液体に含まれる異物が捕捉されるため、濾過された液体が当該液体タンクに貯留され、ポンプ内への異物の侵入を防止することができる。   In addition, as a work machine of this type, a strainer (filter) that filters liquids such as chemicals and water stored in the liquid tank is provided in order to deal with problems such as failures caused by the entry of foreign matter into the pump. Is known. Patent Documents 4 and 5 disclose a liquid tank in which a strainer is attached to an injection port in order to filter a liquid such as a chemical liquid or water poured into the liquid tank. In the liquid tanks disclosed in Patent Documents 4 and 5, foreign matter contained in the liquid poured into the liquid tank is captured by the strainer attached to the inlet, and the filtered liquid is stored in the liquid tank. It is possible to prevent foreign matter from entering the pump.

特開２００１−７０８４５号公報JP 2001-70845 A 特開２００３−２４８３３号公報JP 2003-24833 A 特許第３７４６７５５号公報Japanese Patent No. 3746755 実公昭６３−３８９４４号公報Japanese Utility Model Publication No. 63-38944 特許第４２６２６３８号公報Japanese Patent No. 4262638

ところで、上記した液体タンクに取り付けられるストレーナのフィルタ部分は、所定の網目寸法を有するメッシュ（網状部材）等から構成されており、そのフィルタ部分には、当該フィルタ部分の形状を保持して濾過性能を確保するべく、脚柱（特許文献４）や骨部材（特許文献５）等といった補強部材が配されている。   By the way, the filter part of the strainer attached to the liquid tank is composed of a mesh (mesh-like member) having a predetermined mesh size, and the filter part retains the shape of the filter part for filtration performance. Reinforcing members such as a pedestal (Patent Document 4) and a bone member (Patent Document 5) are arranged to ensure the above.

そのため、特許文献４、５に開示されるような従来の液体タンクにおいては、作業者が注入口に取り付けられたストレーナ（のフィルタ部分）の中心部分へ向かって薬液や水等の液体を注ぎ込んだ場合でも、その液体がストレーナのフィルタ部分の補強部材等に当たって跳ね上がり、跳ね上がった液体がストレーナの側壁付近（すなわち、注ぎ込まれる液体の周囲）から当該液体タンクの外部へ漏れる或いは飛散するといった問題があった。   Therefore, in conventional liquid tanks as disclosed in Patent Documents 4 and 5, a liquid such as a chemical or water is poured into the central portion of the strainer (filter portion thereof) attached to the inlet. Even in such a case, the liquid hits the reinforcing member of the filter portion of the strainer and jumps up, and the splashed liquid leaks or scatters from the vicinity of the side wall of the strainer (that is, around the liquid to be poured) to the outside of the liquid tank. .

また、上記した問題は、ストレーナの側壁高さ（フィルタ部分からストレーナの開口上端までの距離）を確保することで回避し得ると考えられたが、そのように側壁高さを長くしたストレーナを使用しても、作業者が注入口に取り付けられたストレーナの側壁へ向かって液体を注ぎ込んだ場合、ストレーナ内に液体が溜まってくると、注ぎ込まれる液体によりストレーナ内に溜まった液体が波打ち、その液体が、ストレーナの側壁のうち液体が注ぎ込まれる側以外の側壁を伝って（這い上がって）液体タンクの外部へ漏れる或いは飛散する可能性があることが本発明者等による検証実験により確認された。   In addition, it was thought that the above-mentioned problems could be avoided by securing the strainer side wall height (distance from the filter part to the upper end of the strainer opening), but the strainer with such a long side wall height was used. Even when the operator pours liquid toward the side wall of the strainer attached to the inlet, if the liquid accumulates in the strainer, the liquid accumulated in the strainer undulates due to the poured liquid. However, it has been confirmed by a verification experiment by the present inventors that there is a possibility of leaking or scattering to the outside of the liquid tank along the side wall of the strainer other than the side where the liquid is poured.

一般に、上記したような携帯式作業機では、薬液等の注入作業における作業性等の観点から、液体タンクの注入口が上記作業機の上部に設けられ、一方で、ポンプを駆動するためのモータやバッテリ、エンジン等の動力源はその液体タンクの注入口よりも下方に搭載されている（例えば、特許文献１〜３）。そのため、上記したように薬液や水等の液体を注入する際に当該液体が液体タンクから漏れると、その液体が、作業機を背負ったり持ったりするためのバンド、ポンプを駆動するための動力源等に飛散もしくは付着し、当該バンドや動力源等を構成する部品が錆付くといった問題が発生する。   In general, in the portable work machine as described above, from the viewpoint of workability in the work of injecting a chemical solution or the like, a liquid tank inlet is provided on the upper part of the work machine, and on the other hand, a motor for driving the pump A power source such as a battery or an engine is mounted below the inlet of the liquid tank (for example, Patent Documents 1 to 3). Therefore, as described above, when the liquid leaks from the liquid tank when injecting a liquid such as a chemical liquid or water, the liquid carries a band for carrying or holding the work machine, and a power source for driving the pump. This causes a problem that the parts constituting the band, the power source, etc. are rusted.

本発明は、前記問題に鑑みてなされたものであって、その目的とするところは、農薬等の薬液や水などの液体をストレーナが取り付けられた液体タンクに注入する際に、簡単な構成でもって、液体注入時における液体タンクからの漏れ或いは飛散を抑制でき、当該液体を液体タンクに確実に注入でき、作業者の作業性を格段に高めることのできるストレーナ付き液体タンクを提供することにある。   The present invention has been made in view of the above problems, and the object of the present invention is to have a simple configuration when injecting a chemical solution such as an agricultural chemical or a liquid such as water into a liquid tank to which a strainer is attached. Accordingly, an object of the present invention is to provide a strainer-equipped liquid tank that can suppress leakage or scattering from the liquid tank at the time of liquid injection, can reliably inject the liquid into the liquid tank, and can greatly improve the workability of the operator. .

上記する課題を解決するために、本発明に係るストレーナ付き液体タンクは、注入口を有するタンク本体と、前記注入口内で保持される筒状部と該筒状部の下端側開口に設けられたフィルタ部とを有するストレーナと、を備える液体タンクであって、前記ストレーナの前記筒状部には、該筒状部の内側下方へ向かって延びる傾斜部を有する跳ね返り防止部材が配設されていることを特徴としている。   In order to solve the above-described problems, a strainer-equipped liquid tank according to the present invention is provided in a tank body having an inlet, a cylindrical portion held in the inlet, and a lower end opening of the cylindrical portion. A liquid tank comprising a strainer having a filter portion, wherein the tubular portion of the strainer is provided with a rebound preventing member having an inclined portion extending inward and downward of the tubular portion. It is characterized by that.

好ましい形態では、前記跳ね返り防止部材は、前記タンク本体の前記注入口の上端側開口もしくは前記ストレーナの前記筒状部の上端側開口から所定の距離を置いて設けられている。   In a preferred embodiment, the rebound preventing member is provided at a predetermined distance from an upper end side opening of the injection port of the tank body or an upper end side opening of the cylindrical portion of the strainer.

他の好ましい形態では、前記傾斜部は、段階的もしくは連続的に傾斜角が変化している。   In another preferred form, the inclination angle of the inclined portion changes stepwise or continuously.

他の好ましい形態では、前記跳ね返り防止部材は、環状、螺旋状、または周方向で部分的に設けられている。   In another preferred form, the bounce preventing member is provided in an annular shape, a spiral shape, or a partial direction in the circumferential direction.

他の好ましい形態では、前記跳ね返り防止部材は、前記筒状部と別体または一体として設けられている。   In another preferred embodiment, the rebound preventing member is provided separately or integrally with the tubular portion.

更に好ましい形態では、前記跳ね返り防止部材は、前記筒状部に着脱可能に配設されている。   In a more preferred embodiment, the rebound preventing member is detachably disposed on the cylindrical portion.

更に好ましい形態では、前記跳ね返り防止部材は、前記筒状部に設けられた段差部もしくは前記筒状部の上端部に載置されて配設されている。   In a more preferred form, the rebound preventing member is placed and disposed on a stepped portion provided on the cylindrical portion or an upper end portion of the cylindrical portion.

更に好ましい形態では、前記筒状部は、前記段差部が前記注入口に設けられた支持部に載置されて前記注入口内で保持されている。   In a more preferred embodiment, the cylindrical portion is held in the injection port by placing the stepped portion on a support portion provided at the injection port.

他の好ましい形態では、前記跳ね返り防止部材には切欠きが設けられている。   In another preferred embodiment, the bounce preventing member is provided with a notch.

他の好ましい形態では、前記フィルタ部は、前記筒状部から下方へ延びる筒状のストレート部と該ストレート部の下端に設けられた底部とからなる。   In another preferred embodiment, the filter part includes a cylindrical straight part extending downward from the cylindrical part and a bottom part provided at a lower end of the straight part.

他の好ましい形態では、前記フィルタ部は、前記筒状部から下方へ行くに従って縮径するテーパ部と該テーパ部の下端に設けられた底部とからなる逆錐台状を有している。   In another preferred embodiment, the filter portion has an inverted frustum shape composed of a tapered portion that decreases in diameter as it goes downward from the cylindrical portion and a bottom portion provided at the lower end of the tapered portion.

更に好ましい形態では、前記底部には、該底部の周囲に沿って環状補強部材が配設されている。   In a more preferred embodiment, an annular reinforcing member is disposed on the bottom along the periphery of the bottom.

更に好ましい形態では、前記テーパ部には、前記環状補強部材から前記筒状部まで延びる柱状補強部材が配設されている。   In a more preferred form, a columnar reinforcing member that extends from the annular reinforcing member to the tubular portion is disposed in the tapered portion.

更に好ましい形態では、前記柱状補強部材は、前記環状補強部材から放射状に複数設けられている。   In a more preferred embodiment, a plurality of the columnar reinforcing members are provided radially from the annular reinforcing member.

本発明のストレーナ付き液体タンクによれば、ストレーナの筒状部に、該筒状部の内側下方へ向かって延びる傾斜部を有する跳ね返り防止部材が配設されていることにより、作業者が注入口に取り付けられたストレーナ（のフィルタ部）の中心部分へ向かって薬液や水等の液体を注ぎ込んだ場合に、その液体がストレーナのフィルタ部分の補強部材等に当たって跳ね上がっても、跳ね上がった液体が跳ね返り防止部材、特にその傾斜部の裏面である裏側傾斜面に当たってストレーナ内へ戻される。また、作業者が注入口に取り付けられたストレーナ（のフィルタ部）の中心部分を外して跳ね返り防止部材へ向かって液体を注ぎ込んだ場合であっても、前記液体がその傾斜部の表面である表側傾斜面によりストレーナの内側（特に、その中心方向）へ誘導される。そのため、液体注入時における液体タンクからの漏れ或いは飛散を抑制でき、当該液体を液体タンクに確実に貯留でき、液体注入時の作業性を格段に高めることができる。   According to the strainer-equipped liquid tank of the present invention, the bounce prevention member having the inclined portion extending toward the inner lower side of the cylindrical portion is disposed in the cylindrical portion of the strainer. When a liquid such as chemicals or water is poured toward the central part of the strainer (filter part) attached to the filter, even if the liquid hits the reinforcing member of the filter part of the strainer and splashes, the splashed liquid prevents splashing The member is returned to the strainer by hitting a back side inclined surface which is the back surface of the inclined portion. Further, even if the operator removes the central portion of the strainer (filter portion thereof) attached to the inlet and pours the liquid toward the rebound preventing member, the liquid is the surface of the inclined portion. It is guided to the inside of the strainer (particularly in the center direction) by the inclined surface. Therefore, leakage or scattering from the liquid tank during liquid injection can be suppressed, the liquid can be reliably stored in the liquid tank, and workability during liquid injection can be significantly improved.

また、跳ね返り防止部材が、タンク本体の注入口の上端側開口もしくはストレーナの筒状部の上端側開口から所定の距離を置いて設けられていることにより、作業者が跳ね返り防止部材へ向かって液体を注ぎ込んだ場合であっても、該跳ね返り防止部材の表面に当たった液体が当該跳ね返り防止部材から液体タンクの外部へ漏れることを効果的に抑制することができる。   In addition, since the bounce prevention member is provided at a predetermined distance from the upper end side opening of the inlet of the tank body or the upper end side opening of the cylindrical portion of the strainer, the operator can move the liquid toward the bounce prevention member. Even when the liquid is poured, it is possible to effectively suppress the liquid that has hit the surface of the bounce prevention member from leaking from the bounce prevention member to the outside of the liquid tank.

また、跳ね返り防止部材が、筒状部に着脱可能に配設されていることにより、例えば作業者がストレーナのフィルタ部及びタンク本体を洗浄する際に前記跳ね返り防止部材を簡便に取り外すことができ、作業者の作業性を更に高めることができる。   Further, since the bounce prevention member is detachably disposed on the cylindrical portion, for example, when the operator cleans the strainer filter portion and the tank body, the bounce prevention member can be easily removed. The workability of the operator can be further improved.

また、フィルタ部が、筒状部から下方へ行くに従って縮径するテーパ部と該テーパ部の下端に設けられた底部とからなる逆錐台状を有していることにより、当該フィルタ部の表面積（すなわち濾過面積）を増やすことができる。また、ストレーナの高さを小さくした場合でも、充分なフィルタ部の表面積を確保できる。さらに、作業者が注入口に取り付けられたストレーナのフィルタ部を目掛けて液体を注ぎ込んだ場合に、注ぎ込まれる液体がそのテーパ部によりストレーナの内側（特に、その中心方向）へ誘導されると共に、前記液体に渦流が形成され、液体が上方へ向かって跳ね上がることが抑制されるため、跳ね上がった液体が液体タンクの外部へ漏れる或いは飛散することを効果的に抑制できる。また、上記液体に形成された渦流により、当該フィルタ部で濾過された異物がフィルタ部の表面に張り付くことを回避できるため、当該フィルタ部の濾過性能を確保できるといった利点もある。   Further, since the filter portion has an inverted frustum shape including a tapered portion that decreases in diameter as it goes downward from the cylindrical portion and a bottom portion provided at the lower end of the tapered portion, the surface area of the filter portion is reduced. (That is, the filtration area) can be increased. Further, even when the strainer height is reduced, a sufficient surface area of the filter portion can be ensured. Furthermore, when an operator pours liquid through the strainer filter part attached to the inlet, the liquid to be poured is guided to the inside of the strainer (particularly in the center direction) by the taper part, Since a vortex is formed in the liquid and the liquid is prevented from jumping upward, it is possible to effectively suppress the splashed liquid from leaking or scattering to the outside of the liquid tank. Moreover, since the foreign material filtered by the said filter part can avoid sticking to the surface of a filter part with the eddy current formed in the said liquid, there also exists an advantage that the filtration performance of the said filter part can be ensured.

さらに、フィルタ部の底部に、該底部の周囲に沿って環状補強部材が配設され、該環状補強部材の内側にフィルタ部材が配されていることにより、作業者が注入口に取り付けられたストレーナ（のフィルタ部）の中心部分へ向かって液体を注ぎ込んだ場合に、その液体が環状補強部材の内側のフィルタ部材に注がれるため、液体が上方へ向かって跳ね上がることなくスムーズに濾過される。また、仮に、液体が環状補強部材に当たって跳ね返りが発生したとしても、跳ね上がった液体はフィルタ部のテーパ部で濾過されるので、跳ね上がった液体が液体タンクの外部へ漏れる或いは飛散することをより効果的に抑制することができる。   Furthermore, an annular reinforcing member is disposed at the bottom of the filter portion along the periphery of the bottom portion, and the filter member is disposed inside the annular reinforcing member, so that the strainer can be attached to the inlet by the operator. When the liquid is poured toward the center portion of (the filter part), the liquid is poured into the filter member inside the annular reinforcing member, so that the liquid is smoothly filtered without splashing upward. Also, even if the liquid hits the annular reinforcing member and bounces, the splashed liquid is filtered by the taper portion of the filter part, so that it is more effective for the splashed liquid to leak or scatter to the outside of the liquid tank. Can be suppressed.

本発明に係るストレーナ付き液体タンクの実施形態１を示す図であり、（Ａ）はその縦断面図、（Ｂ）は図１（Ａ）のＡ１−Ａ１矢視断面図。It is a figure which shows Embodiment 1 of the liquid tank with a strainer which concerns on this invention, (A) is the longitudinal cross-sectional view, (B) is A1-A1 arrow sectional drawing of FIG. 1 (A). 図１に示すストレーナの分解斜視図。The disassembled perspective view of the strainer shown in FIG. 図２に示すストレーナ本体を示す図であり、（Ａ）はその上面図、（Ｂ）はその側面図。It is a figure which shows the strainer main body shown in FIG. 2, (A) is the top view, (B) is the side view. 図２に示す跳ね返り防止部材を示す図であり、（Ａ）はその上面図、（Ｂ）はその側面図。It is a figure which shows the bounce prevention member shown in FIG. 2, (A) is the top view, (B) is the side view. 図２に示す跳ね返り防止部材の他の例を示す図であり、（Ａ）はその上面図、（Ｂ）は図５（Ａ）のＡ５−Ａ５矢視断面図。It is a figure which shows the other example of the bounce prevention member shown in FIG. 2, (A) is the top view, (B) is A5-A5 arrow sectional drawing of FIG. 5 (A). 図２に示す跳ね返り防止部材の更に他の例を示す図であり、（Ａ）はその上面図、（Ｂ）は図６（Ａ）のＡ６−Ａ６矢視断面図。It is a figure which shows the further another example of the bounce prevention member shown in FIG. 2, (A) is the top view, (B) is A6-A6 arrow sectional drawing of FIG. 6 (A). 図２に示す跳ね返り防止部材の更に他の例を示す図であり、（Ａ）はその上面図、（Ｂ）は図７（Ａ）のＡ７−Ａ７矢視断面図。It is a figure which shows the further another example of the bounce prevention member shown in FIG. 2, (A) is the top view, (B) is A7-A7 arrow sectional drawing of FIG. 7 (A). 図２に示す跳ね返り防止部材の更に他の例を示す図であり、（Ａ）はその上面図、（Ｂ）は図８（Ａ）のＡ８−Ａ８矢視断面図。It is a figure which shows the further another example of the bounce prevention member shown in FIG. 2, (A) is the top view, (B) is A8-A8 arrow sectional drawing of FIG. 8 (A). 図２に示す跳ね返り防止部材の更に他の例を示す縦断面図。The longitudinal cross-sectional view which shows the further another example of the bounce prevention member shown in FIG. 本発明に係るストレーナ付き液体タンクの実施形態２を示す図であり、（Ａ）はその縦断面図、（Ｂ）は図１０（Ａ）のＡ１０−Ａ１０矢視断面図。It is a figure which shows Embodiment 2 of the liquid tank with a strainer which concerns on this invention, (A) is the longitudinal cross-sectional view, (B) is A10-A10 arrow directional cross-sectional view of FIG. 10 (A). 本発明に係るストレーナ付き液体タンクの実施形態３を示す図であり、（Ａ）はその縦断面図、（Ｂ）は図１１（Ａ）のＡ１１−Ａ１１矢視断面図。It is a figure which shows Embodiment 3 of the liquid tank with a strainer which concerns on this invention, (A) is the longitudinal cross-sectional view, (B) is A11-A11 arrow sectional drawing of FIG. 11 (A). 図１１に示す跳ね返り防止部材の他の例を示す縦断面図。The longitudinal cross-sectional view which shows the other example of the bounce prevention member shown in FIG. 本発明に係るストレーナ付き液体タンクの実施形態４を示す図であり、（Ａ）はその縦断面図、（Ｂ）は図１３（Ａ）のＡ１３−Ａ１３矢視断面図。It is a figure which shows Embodiment 4 of the liquid tank with a strainer which concerns on this invention, (A) is the longitudinal cross-sectional view, (B) is A13-A13 arrow directional cross-sectional view of FIG. 13 (A). 本発明に係るストレーナ付き液体タンクの変形形態のストレーナを示す図であり、（Ａ）はその斜視図、（Ｂ）はその上面図、（Ｃ）はその縦断面図。It is a figure which shows the strainer of the deformation | transformation form of the liquid tank with a strainer which concerns on this invention, (A) is the perspective view, (B) is the top view, (C) is the longitudinal cross-sectional view. 本発明に係るストレーナ付き液体タンクの更なる変形形態のストレーナを示す図であり、（Ａ）はその斜視図、（Ｂ）はその上面図、（Ｃ）はその縦断面図。It is a figure which shows the strainer of the further deformation | transformation form of the liquid tank with a strainer which concerns on this invention, (A) is the perspective view, (B) is the top view, (C) is the longitudinal cross-sectional view.

以下、本発明に係るストレーナ付き液体タンクの実施形態を図面を参照して説明する。なお、以下で説明するストレーナ付き液体タンクは、農薬等の薬液や水を農作物や植物等に噴霧もしくは散布する携帯式作業機の他、例えば動力源となるモータやバッテリ、エンジン等が液体タンクの注入口よりも下方に搭載された各種の作業機に適用可能であることは勿論である。また、スピードスプレーヤやブームスプレーヤ等の乗用のものに適用してもよいことは言うまでも無い。   Hereinafter, embodiments of a liquid tank with a strainer according to the present invention will be described with reference to the drawings. The strainer-equipped liquid tank described below is a portable working machine that sprays or sprays chemicals such as agricultural chemicals and water on crops, plants, etc., as well as a motor, battery, engine, etc. as a power source. Of course, the present invention can be applied to various working machines mounted below the inlet. Needless to say, the present invention may be applied to passenger equipment such as a speed sprayer or a boom sprayer.

［実施形態１］
図１は、本発明に係るストレーナ付き液体タンクの実施形態１を示す図であり、図１（Ａ）はその縦断面図、図１（Ｂ）は図１（Ａ）のＡ１−Ａ１矢視断面図である。また、図２は、図１に示すストレーナの分解斜視図、図３は、図２に示すストレーナ本体を示す図であり、図３（Ａ）はその上面図、図３（Ｂ）はその側面図、図４は、図２に示す跳ね返り防止部材を示す図であり、図４（Ａ）はその上面図、図４（Ｂ）はその側面図である。 [Embodiment 1]
1A and 1B are diagrams showing Embodiment 1 of a strainer-equipped liquid tank according to the present invention. FIG. 1A is a longitudinal sectional view thereof, and FIG. 1B is a view taken along arrows A1-A1 in FIG. It is sectional drawing. 2 is an exploded perspective view of the strainer shown in FIG. 1, FIG. 3 is a view showing the strainer body shown in FIG. 2, FIG. 3 (A) is a top view thereof, and FIG. 3 (B) is a side view thereof. 4 and 4 are views showing the bounce preventing member shown in FIG. 2, FIG. 4A is a top view thereof, and FIG. 4B is a side view thereof.

図示するように、液体タンク１は、主に、農薬等の薬液や水などの液体を貯留するタンク本体２と、タンク本体２に貯留される液体に含まれる異物を除去して当該液体を濾過するストレーナ１０と、を備えている。   As shown in the figure, the liquid tank 1 mainly removes foreign matter contained in the liquid stored in the tank body 2 and stores the liquid such as chemicals such as agricultural chemicals and water, and filters the liquid. And a strainer 10 to be used.

タンク本体２は、内部に貯留された液体の量を外側から視認できるように、例えば半透明の合成樹脂等からなり、タンク本体２の上部には、上方へ向かって略円筒状の注液部３が突設されている。注液部３の外周面には、不図示のキャップが着脱可能に螺合される雄ねじ部４が螺設されている。注液部３の内周面から、当該タンク本体２の内部に液体を注入するための注入口５が形成されており、その上方へ向かって開口する注入口５には、ストレーナ１０を係合支持するための支持部６が（例えば周方向で等間隔に４箇所の位置に）設けられている。この支持部６は、注入口５の上端側開口５ａ（注液部３の上端面）よりも下方の位置で径方向内側へ向かって突出するように形成されている。   The tank body 2 is made of, for example, a translucent synthetic resin so that the amount of the liquid stored in the tank can be visually recognized from the outside. 3 is projected. On the outer peripheral surface of the liquid injection part 3, a male screw part 4 to which a cap (not shown) is detachably screwed is screwed. An inlet 5 for injecting liquid into the tank body 2 is formed from the inner peripheral surface of the liquid injection part 3, and a strainer 10 is engaged with the inlet 5 that opens upward. Support portions 6 for supporting are provided (for example, at four positions at equal intervals in the circumferential direction). The support portion 6 is formed to protrude radially inward at a position below the upper end side opening 5a of the injection port 5 (the upper end surface of the liquid injection portion 3).

一方、タンク本体２の下部には、タンク本体２に貯留される液体を外部に排出するための排出口７が側方へ向かって突設されている。   On the other hand, a discharge port 7 for discharging the liquid stored in the tank main body 2 to the outside is provided in the lower part of the tank main body 2 so as to protrude sideways.

ストレーナ１０は、タンク本体２の注液部３の注入口５に着脱可能に且つ同心円上に取り付けられており、主に、注入口５に内嵌されるストレーナ本体１１と、該ストレーナ本体１１の内部に着脱可能に配置される跳ね返り防止部材２０と、を備えている。   The strainer 10 is detachably and concentrically attached to the inlet 5 of the liquid injection part 3 of the tank body 2, and mainly includes a strainer body 11 fitted into the inlet 5, and the strainer body 11. A rebound preventing member 20 detachably disposed inside.

ストレーナ本体１１は、注入口５よりも小径であって該注入口５内で保持される円筒状部１２と、該円筒状部１２の下端側開口１２ｂに設けられると共に注入口５から注入される液体を濾過するフィルタ部１４と、を有する。円筒状部１２は、下方に行くに従って段階的に縮径する段付きで形成され、円筒状部１２に環状に設けられた段差部１３が、注入口５に設けられた支持部６に掛かって支持されることで、円筒状部１２が注入口５内で保持され、ストレーナ１０が注入口５に着脱可能かつ回転可能に取り付けられる。なお、取り付け状態では、円筒状部１２の上端（上端側開口１２ａ）は、注入口５の上端側開口５ａ（注液部３の上端面）以下の位置に位置決めされ、円筒状部１２の下端（下端側開口１２ｂ）は、タンク本体２の注液部３の下端よりも僅かに下方まで延設されている。   The strainer body 11 is smaller in diameter than the injection port 5 and is provided in the cylindrical portion 12 held in the injection port 5, the lower end side opening 12 b of the cylindrical portion 12, and injected from the injection port 5. And a filter unit 14 for filtering liquid. The cylindrical portion 12 is formed with a step that gradually decreases in diameter as it goes downward, and a stepped portion 13 provided annularly on the cylindrical portion 12 hangs on a support portion 6 provided at the injection port 5. By being supported, the cylindrical portion 12 is held in the injection port 5, and the strainer 10 is detachably and rotatably attached to the injection port 5. In the attached state, the upper end (upper end side opening 12a) of the cylindrical part 12 is positioned at a position below the upper end side opening 5a (upper end surface of the liquid injection part 3) of the injection port 5, and the lower end of the cylindrical part 12 is positioned. The (lower end side opening 12 b) extends slightly below the lower end of the liquid injection part 3 of the tank body 2.

フィルタ部１４は、前記円筒状部１２（の下側小径部分１２ｄ）と一体に成形され、円筒状部１２の下端から下方へ行くに従って縮径するテーパ部１５と、該テーパ部１５の下端に設けられた平面視略円形の底部１６とからなる逆円錐台状を有している。このフィルタ部１４は、主に所定の網目寸法を有するメッシュ等のフィルタ部材で構成されるが、そのフィルタ部材には、液体注入時等におけるフィルタ部材の形状を保持するべく、補強部材が配されている。具体的には、図２及び図３に示すように、フィルタ部１４の底部１６に、該底部１６の周囲に沿って円環平板状の環状補強部材１６ａが配設され、テーパ部１５に、その環状補強部材１６ａ（の周方向で等間隔の６箇所の位置）から円筒状部１２まで放射状に延びる平板状の柱状補強部材１５ａが配設され、環状補強部材１６ａの内側、および、隣接する柱状補強部材１５ａと環状補強部材１６ａと円筒状部１２の下端により画成される各領域（テーパ部１５に対して垂直な方向で視て略台形状の各領域）に、前記フィルタ部材が一体的に貼設されている。なお、フィルタ部１４全体をメッシュ等のフィルタ部材で一体的に用意し、その裏面に環状補強部材１６ａを配設し、環状補強部材１６ａによってフィルタ部１４全体を裏面から補強するように形成してもよい。また、環状補強部材１６ａおよび柱状補強部材１５ａの上面は、液体の跳ね返りを防止するために、平坦面から構成されている。   The filter portion 14 is formed integrally with the cylindrical portion 12 (lower small-diameter portion 12 d), and has a tapered portion 15 that decreases in diameter from the lower end of the cylindrical portion 12, and a lower end of the tapered portion 15. It has an inverted frustoconical shape composed of a bottom portion 16 having a substantially circular shape in plan view. The filter unit 14 is mainly composed of a filter member such as a mesh having a predetermined mesh size, and a reinforcing member is disposed on the filter member so as to maintain the shape of the filter member at the time of liquid injection or the like. ing. Specifically, as shown in FIGS. 2 and 3, an annular reinforcing member 16 a having an annular flat plate shape is disposed on the bottom portion 16 of the filter portion 14 along the periphery of the bottom portion 16. Plate-like columnar reinforcing members 15a extending radially from the annular reinforcing member 16a (six positions at equal intervals in the circumferential direction) to the cylindrical portion 12 are disposed, and adjacent to and inside the annular reinforcing member 16a. The filter member is integrated with each region defined by the columnar reinforcing member 15a, the annular reinforcing member 16a, and the lower end of the cylindrical portion 12 (each region having a substantially trapezoidal shape when viewed in a direction perpendicular to the tapered portion 15). It is stuck. The entire filter part 14 is prepared integrally with a filter member such as a mesh, an annular reinforcing member 16a is disposed on the back surface thereof, and the entire filter part 14 is reinforced from the back surface by the annular reinforcing member 16a. Also good. Further, the upper surfaces of the annular reinforcing member 16a and the columnar reinforcing member 15a are formed from flat surfaces in order to prevent the liquid from rebounding.

跳ね返り防止部材２０は、主に、ストレーナ本体１１の円筒状部１２の上側大径部分１２ｃ（段差部１３よりも上側の部分）よりも僅かに小径であって上側大径部分１２ｃよりも上下方向高さが低い円筒状部材からなる立ち上がり部２１と、立ち上がり部２１の上端（上端側開口２１ａ）から内側下方へ向かって直線状に延びる切頭漏斗状の傾斜部２２と、を有している。傾斜部２２の表面２２ａおよび裏面２２ｂはそれぞれ、内方かつ下方へ向かって傾斜する表側傾斜面および裏側傾斜面を構成している。立ち上がり部２１の下端２１ｂが円筒状部１２の段差部１３（の上面）と当接するように、跳ね返り防止部材２０がストレーナ本体１１の円筒状部１２の上側大径部分１２ｃに内嵌されることで、跳ね返り防止部材２０が、ストレーナ本体１１の内部に着脱可能に載置される。そして、このような配置状態では、立ち上がり部２１の上端（上端側開口２１ａ）（言い換えれば、傾斜部２２の上端）が、円筒状部１２（の上側大径部分１２ｃ）の上端側開口１２ａから所定の距離Ｈを置いて配置されると共に、傾斜部２２の先端２２ｃが、円筒状部１２の下側小径部分１２ｄの内部まで延設されており、跳ね返り防止部材２０の傾斜部２２が、円筒状部１２の内側へ向かって張り出されるように延びている。   The rebound preventing member 20 is mainly slightly smaller in diameter than the upper large-diameter portion 12c (the portion above the stepped portion 13) of the cylindrical portion 12 of the strainer body 11, and the vertical direction is higher than the upper large-diameter portion 12c. It has a rising portion 21 made of a cylindrical member having a low height, and a truncated funnel-shaped inclined portion 22 extending linearly from the upper end (upper end side opening 21a) of the rising portion 21 toward the inside and below. . The front surface 22a and the back surface 22b of the inclined portion 22 constitute a front-side inclined surface and a back-side inclined surface that are inclined inward and downward, respectively. The rebound preventing member 20 is fitted into the upper large-diameter portion 12c of the cylindrical portion 12 of the strainer body 11 so that the lower end 21b of the rising portion 21 contacts the stepped portion 13 (the upper surface thereof) of the cylindrical portion 12. Thus, the rebound preventing member 20 is detachably mounted inside the strainer body 11. In such an arrangement state, the upper end (upper end side opening 21a) of the rising portion 21 (in other words, the upper end of the inclined portion 22) extends from the upper end side opening 12a of the cylindrical portion 12 (the upper large diameter portion 12c thereof). The tip 22c of the inclined portion 22 is extended to the inside of the lower small diameter portion 12d of the cylindrical portion 12, and the inclined portion 22 of the rebound preventing member 20 is cylindrical. It extends so as to project toward the inside of the shaped part 12.

なお、上記したストレーナ１０をタンク本体２の注入口５に取り付ける際には、跳ね返り防止部材２０をストレーナ本体１１に組み付けてストレーナ１０を作製した後、そのストレーナ１０をタンク本体２の注入口５に上方から内嵌してもよいし、ストレーナ本体１１のみをタンク本体２の注入口５に上方から内嵌した後、そのストレーナ本体１１に跳ね返り防止部材２０を組み付けてもよい。さらに、後述するように、ストレーナ本体１１と跳ね返り防止部材２０を一体に形成して注入口５に取り付けてもよい。   When the strainer 10 is attached to the inlet 5 of the tank body 2, the bounce prevention member 20 is assembled to the strainer body 11 to produce the strainer 10, and then the strainer 10 is attached to the inlet 5 of the tank body 2. It may be fitted from above, or only the strainer body 11 may be fitted into the inlet 5 of the tank body 2 from above, and the rebound preventing member 20 may be assembled to the strainer body 11. Further, as will be described later, the strainer body 11 and the rebound preventing member 20 may be integrally formed and attached to the injection port 5.

このような構成のストレーナ１０付き液体タンク１では、ストレーナ１０の円筒状部１２に、該円筒状部１２の内側下方へ向かって延びる傾斜部２２を有する跳ね返り防止部材２０が設けられることにより、作業者が注入口５に取り付けられたストレーナ１０（のフィルタ部１４）の中心部分へ向かって薬液や水等の液体を注ぎ込んだ場合に、その液体がストレーナ１０のフィルタ部１４の補強部材等に当たって跳ね上がっても、跳ね返った液体が跳ね返り防止部材２０、特にその傾斜部２２の裏面２２ｂである裏側傾斜面に当たってストレーナ１０内へ戻される。また、作業者が注入口に取り付けられたストレーナ１０（のフィルタ部１４）の中心部分を外して跳ね返り防止部材２０へ向かって液体を注ぎ込んだ場合であっても、前記液体がその傾斜部２２の表面２２ａである表側傾斜面によりストレーナ１０の内側（特に、その中心方向）へ誘導される。そのため、液体注入時における液体タンク１からの漏れ或いは飛散を抑制でき、当該液体を液体タンク１に確実に貯留でき、液体注入時の作業性を格段に高めることができる。   In the liquid tank 1 with the strainer 10 having such a configuration, the cylindrical portion 12 of the strainer 10 is provided with the anti-bounce member 20 having the inclined portion 22 extending toward the inner lower side of the cylindrical portion 12. When a person pours a liquid such as a chemical or water toward the central portion of the strainer 10 (the filter portion 14) attached to the injection port 5, the liquid hits the reinforcing member of the filter portion 14 of the strainer 10 and jumps up. Even so, the rebounded liquid hits the rebound preventing member 20, particularly the back side inclined surface which is the back surface 22 b of the inclined portion 22, and returns to the strainer 10. Further, even when the operator removes the central portion of the strainer 10 (the filter portion 14) attached to the inlet and pours the liquid toward the splash-preventing member 20, the liquid remains in the inclined portion 22. It is guided to the inside (especially, the center direction) of the strainer 10 by the front inclined surface which is the surface 22a. Therefore, leakage or scattering from the liquid tank 1 at the time of liquid injection can be suppressed, the liquid can be reliably stored in the liquid tank 1, and workability at the time of liquid injection can be significantly improved.

また、跳ね返り防止部材２０が、タンク本体２の注入口５の上端側開口５ａやストレーナ１０の円筒状部１２の上端側開口１２ａから所定の距離を置いて設けられていることにより、作業者が跳ね返り防止部材２０へ向かって液体を注ぎ込んだ場合であっても、跳ね返り防止部材２０の表面に当たった液体が当該跳ね返り防止部材２０から液体タンク１の外部へ直接的に漏れることを効果的に抑制することができる。   Further, since the bounce prevention member 20 is provided at a predetermined distance from the upper end side opening 5a of the inlet 5 of the tank body 2 and the upper end side opening 12a of the cylindrical portion 12 of the strainer 10, the operator can Even when the liquid is poured toward the rebound preventing member 20, the liquid that has hit the surface of the rebound preventing member 20 is effectively suppressed from leaking directly from the rebound preventing member 20 to the outside of the liquid tank 1. can do.

また、ストレーナ本体１１のフィルタ部１４が、円筒状部１２から下方へ行くに従って縮径するテーパ部１５と該テーパ部１５の下端に設けられた底部１６とからなる逆円錐台状を有していることにより、当該フィルタ部１４の表面積（すなわち濾過面積）を増やすことができる。本実施形態では、たとえばフィルタ部が円筒状部の下端に平面状に設けられたストレーナ本体と比較して、フィルタ部の表面積を約150%増加できることが確認されている。また、ストレーナ１０の高さを小さくした場合でも、充分なフィルタ部１４の表面積を確保できる。さらに、作業者が注入口５に取り付けられたストレーナ１０のフィルタ部１４を目掛けて液体を注ぎ込んだ場合に、注ぎ込まれる液体がそのテーパ部１５によりストレーナ１０の内側（特に、その中心方向）へ誘導されると共に、前記液体に渦流が形成され、液体が上方へ向かって跳ね上がることが抑制されるため、跳ね上がった液体が液体タンクの外部へ漏れる或いは飛散することを効果的に抑制できる。また、上記液体に形成された渦流により、当該フィルタ部１４で濾過された異物（例えば、落ち葉や石）がフィルタ部１４の表面に張り付くことを回避できるため、当該フィルタ部１４の濾過性能を確保できるといった利点もある。   Further, the filter portion 14 of the strainer main body 11 has an inverted truncated cone shape composed of a tapered portion 15 that decreases in diameter as it goes downward from the cylindrical portion 12 and a bottom portion 16 provided at the lower end of the tapered portion 15. Therefore, the surface area (that is, the filtration area) of the filter unit 14 can be increased. In the present embodiment, for example, it has been confirmed that the surface area of the filter part can be increased by about 150% compared to a strainer body in which the filter part is provided in a planar shape at the lower end of the cylindrical part. Further, even when the strainer 10 is reduced in height, a sufficient surface area of the filter portion 14 can be secured. Furthermore, when an operator pours liquid by looking at the filter portion 14 of the strainer 10 attached to the injection port 5, the poured liquid is brought into the inside of the strainer 10 (particularly in the center direction) by the tapered portion 15. In addition to the induction, a vortex is formed in the liquid and the liquid is prevented from jumping upward, so that the splashed liquid can be effectively prevented from leaking or scattering to the outside of the liquid tank. Moreover, since the foreign material (for example, fallen leaf and stone) filtered with the said filter part 14 can avoid sticking to the surface of the filter part 14 with the eddy current formed in the said liquid, the filtration performance of the said filter part 14 is ensured. There is also an advantage that it can be done.

さらに、フィルタ部１４の底部１６に、該底部１６の周囲に沿って環状補強部材１６ａが配設され、該環状補強部材１６ａの内側にフィルタ部材が配されていることにより、作業者が注入口５に取り付けられたストレーナ１０（のフィルタ部１４）の中心部分へ向かって液体を注ぎ込んだ場合に、その液体が環状補強部材１６ａの内側のフィルタ部材に注がれるため、液体が上方へ向かって跳ね上がることなくスムーズに濾過される。また、仮に、液体が環状補強部材１６ａに当たって跳ね返りが発生したとしても、跳ね上がった液体はフィルタ部１４のテーパ部１５で濾過されるので、跳ね上がった液体が液体タンク１の外部へ漏れる或いは飛散することをより効果的に抑制することができる。   Further, an annular reinforcing member 16a is disposed on the bottom portion 16 of the filter portion 14 along the periphery of the bottom portion 16, and the filter member is disposed on the inner side of the annular reinforcing member 16a. When the liquid is poured toward the central portion of the strainer 10 (the filter portion 14) attached to 5, the liquid is poured into the filter member inside the annular reinforcing member 16a. It is filtered smoothly without jumping up. Further, even if the liquid hits the annular reinforcing member 16a and rebounds, the splashed liquid is filtered by the taper portion 15 of the filter portion 14, so that the splashed liquid leaks or scatters outside the liquid tank 1. Can be more effectively suppressed.

上記した理由により、上記ストレーナ１０付き液体タンク１を携帯式作業機等に適用すると、液体タンク１の注入口５よりも下方に搭載されたモータやバッテリ、エンジン等の動力源、作業機を背負ったり持ったりするためのバンド等を構成する部品に農薬等の液体が飛散もしくは付着することを回避でき、それらの部品が錆付くといった問題を確実に解消し得る。   For the reasons described above, when the liquid tank 1 with the strainer 10 is applied to a portable work machine or the like, a power source such as a motor, a battery, an engine, or the like mounted below the inlet 5 of the liquid tank 1 or the work machine is carried on the back. It is possible to prevent liquids such as agricultural chemicals from scattering or adhering to parts constituting a band or the like for holding, and the problem of rusting of those parts can be surely solved.

なお、上記した跳ね返り防止部材２０には、当該跳ね返り防止部材２０の表面に液膜が形成されるのを防止したり、当該跳ね返り防止部材２０の上方に溜まった液体や作業者が当該跳ね返り防止部材２０へ向かって注ぎ込んだ液体をストレーナ本体１１のフィルタ部１４へ排水すべく（水抜き効果、水切れ効果）、切欠きが設けられていてもよい。   The above-described anti-bounce member 20 prevents a liquid film from being formed on the surface of the anti-bounce member 20, and the liquid or the operator accumulated above the anti-bounce member 20 can prevent the anti-bounce member 20 from being formed. In order to drain the liquid poured toward 20 to the filter portion 14 of the strainer body 11 (drainage effect, drainage effect), a notch may be provided.

例えば、図５に示すように、跳ね返り防止部材２０の周側部、特に立ち上がり部２１の一部（図示例では周方向で等間隔に４箇所の部分）とその立ち上がり部２１の一部に連続する傾斜部２２の一部（傾斜部２２の上端部分）に平面視で略矩形状の切欠き２３ａが設けられていてもよい。また、図６に示すように、跳ね返り防止部材２０の周側部、特に立ち上がり部２１の一部（図示例では周方向で等間隔に４箇所の部分のうちの下端部分を除いた部分）とその立ち上がり部２１の一部に連続する傾斜部２２の一部（傾斜部２２の上端部分）に平面視で略矩形状の切欠き２３ｂが設けられていてもよい。また、図７に示すように、跳ね返り防止部材２０の傾斜部２２の一部（図示例では周方向で等間隔に４箇所の部分であって、傾斜部２２の中腹部分）に平面視で略矩形状の切欠き２３ｃが設けられていてもよい。また、図８に示すように、跳ね返り防止部材２０の傾斜部２２の一部（図示例では周方向で等間隔に４箇所の部分であって、傾斜部２２の内端部分）に平面視で略矩形状且つ内側へ開口する切欠き２３ｄが設けられていてもよい。ここで、図７及び図８に示すように、前記切欠きが傾斜部２２の中腹部分や内端部分にのみ、すなわち跳ね返り防止部材２０の周側部以外の部分に部分的に形成されている場合には、上記した跳ね返り防止部材２０の跳ね返り防止機能を確保できると考えられる。   For example, as shown in FIG. 5, continuous to the peripheral side portion of the bounce prevention member 20, particularly a part of the rising part 21 (four parts at equal intervals in the circumferential direction in the illustrated example) and a part of the rising part 21. A substantially rectangular notch 23a may be provided in a part of the inclined portion 22 (the upper end portion of the inclined portion 22). Further, as shown in FIG. 6, a part of the circumferential side portion of the bounce preventing member 20, particularly a part of the rising portion 21 (in the illustrated example, a portion excluding a lower end portion of four portions at equal intervals in the circumferential direction) A substantially rectangular notch 23b may be provided in a part of the inclined part 22 (the upper end part of the inclined part 22) continuous with a part of the rising part 21 in a plan view. Further, as shown in FIG. 7, a portion of the inclined portion 22 of the rebound preventing member 20 (in the illustrated example, four portions at equal intervals in the circumferential direction and the middle portion of the inclined portion 22) are substantially in plan view. A rectangular cutout 23c may be provided. Further, as shown in FIG. 8, a part of the inclined portion 22 of the rebound preventing member 20 (four portions at equal intervals in the circumferential direction and the inner end portion of the inclined portion 22 in the illustrated example) in plan view. A notch 23d that is substantially rectangular and opens inward may be provided. Here, as shown in FIGS. 7 and 8, the notch is partially formed only in the middle part or inner end part of the inclined portion 22, that is, in a part other than the peripheral side part of the rebound preventing member 20. In this case, it is considered that the bounce prevention function of the bounce prevention member 20 described above can be secured.

なお、跳ね返り防止部材２０に設けられる切欠きは、上記した図５〜図８に示す形態のみに限定されず、例えば、図５〜図８に示す切欠きを適宜に組み合わせて適用してもよいし、その切欠きの位置や形状、大きさ、数等を適宜に変更して適用してもよい。   In addition, the notch provided in the bounce prevention member 20 is not limited only to the form shown in FIGS. 5 to 8 described above, and for example, the notches shown in FIGS. However, the position, shape, size, number, etc. of the notches may be changed as appropriate and applied.

また、上記した跳ね返り防止部材２０の傾斜部２２は、上記したような直線状を呈する形態のみに限定されず、例えば、その傾斜角が連続的に変化するように、上に凸（図９参照）あるいは下に凸となる曲線状を呈する部分を有していてもよい。   Further, the inclined portion 22 of the bounce preventing member 20 described above is not limited to a form having a linear shape as described above. For example, the inclined portion 22 protrudes upward so that the inclination angle continuously changes (see FIG. 9). ) Or a curved portion that is convex downward.

［実施形態２］
図１０は、本発明に係るストレーナ付き液体タンクの実施形態２を示す図であり、図１０（Ａ）はその縦断面図、図１０（Ｂ）は図１０（Ａ）のＡ１０−Ａ１０矢視断面図である。本実施形態２のストレーナ１０Ａ付き液体タンク１Ａは、上記した実施形態１の液体タンク１に対し、ストレーナを構成する跳ね返り防止部材の形状のみが相違しており、その他の構成は実施形態１の液体タンク１とほぼ同様である。したがって、実施形態１の液体タンク１と同様の構成については同様の符号を付してその詳細な説明は省略する。 [Embodiment 2]
10A and 10B are diagrams showing Embodiment 2 of the strainer-equipped liquid tank according to the present invention. FIG. 10A is a longitudinal sectional view thereof, and FIG. 10B is a view taken along an arrow A10-A10 in FIG. It is sectional drawing. The liquid tank 1A with the strainer 10A according to the second embodiment is different from the liquid tank 1 according to the first embodiment only in the shape of the bounce preventing member constituting the strainer. It is almost the same as the tank 1. Therefore, the same components as those of the liquid tank 1 of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

上記した実施形態１では、ストレーナ１０を構成する跳ね返り防止部材２０の傾斜部２２が、直線状を呈している。一方で、本実施形態２では、跳ね返り防止部材２０Ａの傾斜部２２Ａの傾斜角が、段階的に変化している。具体的には、跳ね返り防止部材２０Ａの傾斜部２２Ａは、立ち上がり部２１Ａの上端（上端側開口２１ａＡ）から内側下方へ向かって直線状に延びる第１傾斜部２２１Ａと、第１傾斜部２２１Ａの先端２２１ｃＡから内側下方へ向かって且つ第１傾斜部２２１Ａよりも大きな傾斜角で直線状に延びる第２傾斜部２２２Ａと、から構成されている。   In the first embodiment described above, the inclined portion 22 of the rebound preventing member 20 constituting the strainer 10 has a linear shape. On the other hand, in the second embodiment, the inclination angle of the inclined portion 22A of the rebound preventing member 20A changes stepwise. Specifically, the inclined portion 22A of the rebound preventing member 20A includes a first inclined portion 221A that linearly extends inward and downward from the upper end (upper end side opening 21aA) of the rising portion 21A, and the tip of the first inclined portion 221A. The second inclined portion 222A extends linearly from 221cA downward inward and with a larger inclination angle than the first inclined portion 221A.

このような構成とすることで、跳ね返り防止部材２０Ａの傾斜部２２Ａの先端２２ｃＡにより画成される開口（すなわち、液体が注ぎ込まれる開口）を確保できると共に、傾斜部２２Ａの裏面２２ｂＡ（裏側傾斜面）の傾斜角を大きくして、跳ね返り防止部材２０Ａの裏面に当たった液体を、より確実にストレーナ１０Ａ内へ戻すことができる。   With such a configuration, an opening (that is, an opening into which liquid is poured) defined by the tip 22cA of the inclined portion 22A of the rebound preventing member 20A can be secured, and the back surface 22bA (back-side inclined surface) of the inclined portion 22A. ) Can be increased, and the liquid that has hit the back surface of the rebound preventing member 20A can be more reliably returned into the strainer 10A.

なお、本実施形態２においても、上記した実施形態１において図５〜図８に基づき説明したような切欠きが跳ね返り防止部材２０Ａの傾斜部２２Ａや立ち上がり部２１Ａに設けられていてもよい。   Also in the second embodiment, the notches described in the first embodiment based on FIGS. 5 to 8 may be provided in the inclined portion 22A and the rising portion 21A of the rebound preventing member 20A.

また、跳ね返り防止部材２０Ａの傾斜部２２Ａ（の第１傾斜部２２１Ａや第２傾斜部２２２Ａ）が、上記した実施形態１において図９に基づき説明したような曲線状を呈する部分を有していてもよいことは勿論である。   Further, the sloping portion 22A (the first sloping portion 221A and the second sloping portion 222A) of the rebound preventing member 20A has a portion exhibiting a curved shape as described based on FIG. 9 in the first embodiment. Of course, it is also good.

［実施形態３］
図１１は、本発明に係るストレーナ付き液体タンクの実施形態３を示す図であり、図１１（Ａ）はその縦断面図、図１１（Ｂ）は図１１（Ａ）のＡ１１−Ａ１１矢視断面図である。本実施形態３のストレーナ１０Ｂ付き液体タンク１Ｂは、上記した実施形態１、２の液体タンク１、１Ａに対し、ストレーナを構成する跳ね返り防止部材の形状のみが相違しており、その他の構成は実施形態１、２の液体タンク１、１Ａとほぼ同様である。したがって、実施形態１、２の液体タンク１、１Ａと同様の構成については同様の符号を付してその詳細な説明は省略する。 [Embodiment 3]
11A and 11B are views showing Embodiment 3 of the strainer-equipped liquid tank according to the present invention. FIG. 11A is a longitudinal sectional view thereof, and FIG. 11B is a view taken along arrow A11-A11 in FIG. It is sectional drawing. The liquid tank 1B with the strainer 10B of the third embodiment is different from the liquid tanks 1 and 1A of the first and second embodiments only in the shape of the bounce preventing member constituting the strainer, and the other configurations are implemented. It is almost the same as the liquid tanks 1 and 1A of the first and second embodiments. Accordingly, the same components as those of the liquid tanks 1 and 1A of the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

本実施形態３では、ストレーナ１０Ｂを構成する跳ね返り防止部材２０Ｂは、主に、径方向で所定の幅（具体的には、外径がストレーナ本体１１Ｂの円筒状部１２Ｂの上側大径部分１２ｃＢよりも小径且つ下側小径部分１２ｄＢよりも大径であって、内径が下側小径部分１２ｄＢよりも小径）を有する円環状部材からなる水平部２１Ｂと、水平部２１Ｂの内端（内端開口側２１ａＢ）から内側下方へ向かって直線状に延びる切頭漏斗状の傾斜部２２Ｂと、を有している。そして、水平部２１Ｂの裏面が円筒状部１２Ｂの段差部１３Ｂ（の上面）と当接するように、跳ね返り防止部材２０Ｂがストレーナ本体１１Ｂの円筒状部１２Ｂの上側大径部分１２ｃＢに内嵌されることで、この跳ね返り防止部材２０Ｂがストレーナ本体１１Ｂの内部に着脱可能に配置される。   In the third embodiment, the bounce preventing member 20B that constitutes the strainer 10B mainly has a predetermined width in the radial direction (specifically, the outer diameter is larger than the upper large diameter portion 12cB of the cylindrical portion 12B of the strainer body 11B). And a horizontal portion 21B made of an annular member having a smaller diameter and a larger diameter than the lower small-diameter portion 12dB and an inner diameter smaller than the lower small-diameter portion 12dB, and an inner end (inner end opening side) of the horizontal portion 21B 21aB) and a truncated funnel-shaped inclined portion 22B extending linearly inward and downward. The rebound preventing member 20B is fitted into the upper large-diameter portion 12cB of the cylindrical portion 12B of the strainer body 11B so that the back surface of the horizontal portion 21B contacts the stepped portion 13B (the upper surface thereof) of the cylindrical portion 12B. Thus, the rebound preventing member 20B is detachably disposed inside the strainer body 11B.

このような構成とすることで、跳ね返り防止部材２０Ｂの形状を簡素化かつ小型化できると共に、跳ね返り防止部材２０Ｂ（の上端部分）とタンク本体２Ｂの注入口５Ｂの上端側開口５ａＢやストレーナ１０Ｂの円筒状部１２Ｂの上端側開口１２ａＢとの距離を確保でき、作業者が跳ね返り防止部材２０Ｂへ向かって液体を注ぎ込んだ場合であっても、跳ね返り防止部材２０Ｂの表面に当たった液体が当該跳ね返り防止部材２０Ｂから液体タンク１Ｂの外部へ直接的に漏れることをより確実に抑制できる。   With this configuration, the shape of the rebound preventing member 20B can be simplified and reduced in size, and the rebound preventing member 20B (the upper end portion thereof) and the upper end side opening 5aB of the inlet 5B of the tank body 2B and the strainer 10B can be reduced. The distance from the upper end side opening 12aB of the cylindrical portion 12B can be secured, and even when the operator pours liquid toward the rebound preventing member 20B, the liquid that has hit the surface of the rebound preventing member 20B prevents the rebound. Direct leakage from the member 20B to the outside of the liquid tank 1B can be more reliably suppressed.

なお、本実施形態３においても、上記した実施形態１において図５〜図８に基づき説明したような切欠きが跳ね返り防止部材２０Ｂの傾斜部２２Ｂや水平部２１Ｂに設けられていてもよい。   In the third embodiment, notches as described in the first embodiment with reference to FIGS. 5 to 8 may be provided in the inclined portion 22B and the horizontal portion 21B of the rebound preventing member 20B.

また、跳ね返り防止部材２０Ｂの傾斜部２２Ｂは、上記した実施形態１、２と同様、上記したような直線状を呈する形態のみに限定されず、例えば、その傾斜角が連続的に変化するように、上に凸（図１２参照）あるいは下に凸となる曲線状を呈する部分を有していてもよい。   Further, the inclined portion 22B of the rebound preventing member 20B is not limited to the form having the linear shape as described above, as in the first and second embodiments. For example, the inclination angle continuously changes. Further, it may have a curved portion that is convex upward (see FIG. 12) or convex downward.

［実施形態４］
図１３は、本発明に係るストレーナ付き液体タンクの実施形態４を示す図であり、図１３（Ａ）はその縦断面図、図１３（Ｂ）は図１３（Ａ）のＡ１３−Ａ１３矢視断面図である。本実施形態４のストレーナ１０Ｃ付き液体タンク１Ｃは、上記した実施形態３の液体タンク１Ｂに対し、主にストレーナを構成する跳ね返り防止部材の配置が相違しており、その他の構成は実施形態３の液体タンク１Ｂとほぼ同様である。したがって、実施形態３の液体タンク１Ｂと同様の構成については同様の符号を付してその詳細な説明は省略する。 [Embodiment 4]
13A and 13B are diagrams showing Embodiment 4 of the strainer-equipped liquid tank according to the present invention. FIG. 13A is a longitudinal sectional view thereof, and FIG. 13B is a view taken along arrow A13-A13 in FIG. It is sectional drawing. The liquid tank 1C with strainer 10C according to the fourth embodiment is different from the liquid tank 1B according to the third embodiment described above in the arrangement of the bounce prevention member mainly constituting the strainer. It is almost the same as the liquid tank 1B. Therefore, the same components as those of the liquid tank 1B of Embodiment 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

上記した実施形態１〜３では、ストレーナを構成する跳ね返り防止部材が、ストレーナ本体の円筒状部の上側大径部分に内嵌されて、円筒状部に設けられた段差部に載置されている。一方で、本実施形態４では、跳ね返り防止部材２０Ｃが、円筒状部１２Ｃの上端部（上端側開口１２ａＣ）に載置されている。   In the above-described first to third embodiments, the bounce preventing member constituting the strainer is fitted into the upper large diameter portion of the cylindrical portion of the strainer body, and is placed on the step portion provided in the cylindrical portion. . On the other hand, in the fourth embodiment, the rebound preventing member 20C is placed on the upper end portion (upper end side opening 12aC) of the cylindrical portion 12C.

具体的には、ストレーナ１０Ｃを構成する跳ね返り防止部材２０Ｃは、径方向で所定の幅（ここでは、外径がタンク本体２Ｃの注入口５Ｃよりも小径且つストレーナ本体１１Ｃの円筒状部１２Ｃの上側大径部分１２ｃＣよりも大径であって、内径が上側大径部分１２ｃＣよりも小径）を有する円環状部材からなる水平部２１Ｃと、水平部２１Ｃの内端（内端開口側２１ａＣ）から内側下方へ向かって直線状に延びる切頭漏斗状の傾斜部２２Ｃと、を有している。そして、水平部２１Ｃの裏面が円筒状部１２Ｃの上端面（上端側開口１２ａＣ）と当接するように、跳ね返り防止部材２０Ｃがストレーナ本体１１Ｃの円筒状部１２Ｃの上端部に載置されることで、跳ね返り防止部材２０Ｃがストレーナ本体１１Ｃの上部に着脱可能に配置される。そして、このような配置状態では、水平部２１Ｃの表面（すなわち、跳ね返り防止部材２０Ｃの上端部分）が、タンク本体２Ｃの注入口５Ｃの上端側開口５ａＣから所定の距離ＨＣを置いて配置されている。   Specifically, the rebound preventing member 20C constituting the strainer 10C has a predetermined width in the radial direction (here, the outer diameter is smaller than the inlet 5C of the tank body 2C and the upper side of the cylindrical portion 12C of the strainer body 11C). A horizontal portion 21C made of an annular member having a larger diameter than the large-diameter portion 12cC and an inner diameter smaller than that of the upper large-diameter portion 12cC, and an inner end from the inner end (inner end opening side 21aC) of the horizontal portion 21C And a truncated funnel-shaped inclined portion 22C extending linearly downward. The rebound preventing member 20C is placed on the upper end portion of the cylindrical portion 12C of the strainer body 11C so that the back surface of the horizontal portion 21C is in contact with the upper end surface (upper end side opening 12aC) of the cylindrical portion 12C. The rebound preventing member 20C is detachably disposed on the upper portion of the strainer body 11C. In such an arrangement state, the surface of the horizontal portion 21C (that is, the upper end portion of the rebound preventing member 20C) is arranged at a predetermined distance HC from the upper end side opening 5aC of the inlet 5C of the tank body 2C. Yes.

このような構成であっても、上記した実施形態１〜３と同様の作用効果を奏することができる。   Even if it is such a structure, there can exist an effect similar to above-described Embodiment 1-3.

なお、本実施形態４においても、上記した実施形態１において図５〜図８に基づき説明したような切欠きが跳ね返り防止部材２０Ｃの傾斜部２２Ｃや水平部２１Ｃに設けられていてもよい。   In the fourth embodiment, the notches as described in the first embodiment with reference to FIGS. 5 to 8 may be provided in the inclined portion 22C and the horizontal portion 21C of the rebound preventing member 20C.

また、跳ね返り防止部材２０Ｃの傾斜部２２Ｃが、上記した実施形態３において図１２に基づき説明したような曲線状を呈する部分を有していてもよいことは勿論である。   Further, it goes without saying that the inclined portion 22C of the rebound preventing member 20C may have a curved portion as described with reference to FIG. 12 in the third embodiment.

［変形形態］
なお、上記した実施形態１〜４では、ストレーナの円筒状部に設けられた段差部が注入口に設けられた支持部に掛かって支持されることで、ストレーナが注入口に取り付けられる形態について説明したが、注入口に対するストレーナの取り付け構成は適宜に変更できることは勿論である。 [Deformation]
In the first to fourth embodiments described above, a description is given of a mode in which the strainer is attached to the injection port by the stepped portion provided in the cylindrical portion of the strainer being supported by being supported by the support portion provided in the injection port. However, it goes without saying that the configuration of the strainer attached to the inlet can be changed as appropriate.

また、上記した実施形態１〜４では、液体注入時における液体タンクからの漏れ或いは飛散を確実に抑制するべく、ストレーナを構成する跳ね返り防止部材が周方向で連続に、すなわち円環状に設けられる形態について説明した。一方で、ストレーナの跳ね返り防止部材は、例えば使用者の要求等に応じて、図１４に示すように周方向で部分的に設けてもよい（図１４の跳ね返り防止部材２０'参照）。すなわち、周方向の一部（図１４に示す例では、９０度の角度範囲の部分）に設けてもよいし、周方向で複数の箇所に分割して設けてもよい。また、ストレーナの跳ね返り防止部材は、例えば、図１５に示すように、螺旋状などの周方向で不連続となるように、言い換えれば周方向で上下方向の位置又は高さを変化させながら設けてもよい（図１５の跳ね返り防止部材２０''参照）。   Further, in the above-described first to fourth embodiments, the rebound preventing member constituting the strainer is continuously provided in the circumferential direction, that is, in an annular shape, in order to reliably suppress leakage or scattering from the liquid tank at the time of liquid injection. Explained. On the other hand, the bounce prevention member of the strainer may be partially provided in the circumferential direction as shown in FIG. 14 according to, for example, a user's request (see the bounce prevention member 20 ′ in FIG. 14). That is, it may be provided in a part of the circumferential direction (in the example shown in FIG. 14, a part having an angle range of 90 degrees), or may be divided into a plurality of locations in the circumferential direction. The strainer bounce preventing member is provided, for example, as shown in FIG. 15 so as to be discontinuous in the circumferential direction such as a spiral, in other words, while changing the vertical position or height in the circumferential direction. (Refer to the bounce prevention member 20 ″ in FIG. 15).

また、上記した実施形態１〜４では、例えば作業者等がストレーナのフィルタ部やタンク本体を洗浄する際に跳ね返り防止部材を取り外したり、この跳ね返り防止部材を他のストレーナに利用したりできるように、跳ね返り防止部材がストレーナ本体の円筒状部と別体として設けられ、当該跳ね返り防止部材がストレーナ本体の円筒状部に着脱可能に配置される形態について説明した。一方で、ストレーナの跳ね返り防止部材は、ストレーナ本体の円筒状部と一体として設けてもよい。その場合には、図１５に示したように、ストレーナの跳ね返り防止部材を螺旋状などに形成してストレーナ本体の円筒状部と一体成形することが考えられる。また、当該跳ね返り防止部材をストレーナ本体の円筒状部と別体として設ける場合にも、例えば、接着、溶着、ねじ等を用いた締結などにより、当該跳ね返り防止部材をストレーナ本体の円筒状部に固定して配置してもよい。   Moreover, in above-described Embodiments 1-4, for example, when an operator etc. wash | cleans the filter part of a strainer, or a tank main body, it can remove a rebound prevention member, or can utilize this rebound prevention member for another strainer. In the above description, the rebound preventing member is provided as a separate body from the cylindrical portion of the strainer body, and the rebound preventing member is detachably disposed on the cylindrical portion of the strainer body. On the other hand, the bounce prevention member of the strainer may be provided integrally with the cylindrical portion of the strainer body. In that case, as shown in FIG. 15, it is conceivable to form the strainer rebound preventing member in a spiral shape or the like and integrally form the cylindrical portion of the strainer body. Also, when the bounce preventing member is provided separately from the cylindrical portion of the strainer body, the bounce preventing member is fixed to the cylindrical portion of the strainer body by, for example, bonding, welding, fastening using screws, etc. May be arranged.

また、上記した実施形態１〜４では、ストレーナ本体のフィルタ部が、円筒状部から下方へ行くに従って縮径するテーパ部と該テーパ部の下端に設けられた底部とからなる逆円錐台状を有している形態について説明したが、たとえば、フィルタ部の表面積をより増大させるべく、フィルタ部を、円筒状部から下方へ延びる円筒状のストレート部と該ストレート部の下端に設けられた底部とから構成してもよい。   Moreover, in above-described Embodiments 1-4, the filter part of a strainer main body is the inverted truncated cone shape which consists of a taper part diameter-reduced as it goes below from a cylindrical part, and the bottom part provided in the lower end of this taper part. Although the embodiment has been described, for example, in order to further increase the surface area of the filter portion, the filter portion includes a cylindrical straight portion extending downward from the cylindrical portion, and a bottom portion provided at the lower end of the straight portion. You may comprise.

また、上記した実施形態１〜４では、ストレーナ本体のフィルタ部の底部に配設された環状補強部材が円環状である形態について説明したが、例えば、楕円形状や多角形状などであってもよいことは勿論である。さらに、フィルタ部のテーパ部に配設された柱状補強部材の位置や形状、大きさ、数等は、フィルタ部に要求される強度等に応じて適宜に変更できることは当然である。   Moreover, in above-mentioned Embodiment 1-4, although the cyclic | annular reinforcement member arrange | positioned at the bottom part of the filter part of a strainer main body demonstrated the form which is circular, for example, elliptical shape, polygonal shape, etc. may be sufficient. Of course. Furthermore, it is natural that the position, shape, size, number, and the like of the columnar reinforcing members disposed in the taper portion of the filter portion can be appropriately changed according to the strength required for the filter portion.

１ 液体タンク
２ タンク本体
３ 注液部
４ 雄ねじ部
５ 注入口
５ａ 注入口の上端側開口
６ 支持部
７ 排出口
１０ ストレーナ
１１ ストレーナ本体
１２ 円筒状部（筒状部）
１２ａ 円筒状部の上端側開口
１２ｂ 円筒状部の下端側開口
１２ｃ 円筒状部の上側大径部分
１２ｄ 円筒状部の下側小径部分
１３ 段差部
１４ フィルタ部
１５ テーパ部
１６ 底部
１６ａ 環状補強部材
２０ 跳ね返り防止部材
２１ 立ち上がり部
２１ａ 立ち上がり部の上端側開口
２１ｂ 立ち上がり部の下端
２２ 傾斜部
２２ａ 傾斜部の表面
２２ｂ 傾斜部の裏面
２２ｃ 傾斜部の先端
２３ａ、２３ｂ、２３ｃ、２３ｄ 切欠き DESCRIPTION OF SYMBOLS 1 Liquid tank 2 Tank main body 3 Liquid injection part 4 Male thread part 5 Inlet 5a Opening upper end side opening 6 Support part 7 Outlet 10 Strainer 11 Strainer main body 12 Cylindrical part (cylindrical part)
12a Cylindrical part upper end side opening 12b Cylindrical part lower end side opening 12c Cylindrical part upper large diameter part 12d Cylindrical part lower small diameter part 13 Step part 14 Filter part 15 Taper part 16 Bottom part 16a Annular reinforcing member 20 Rebound prevention member 21 Rising portion 21a Upper end side opening 21b of rising portion Lower end 22 of rising portion Inclined portion 22a Inclined portion surface 22b Inclined portion back surface 22c Inclined portion tips 23a, 23b, 23c, 23d Notch

Claims (14)

注入口を有するタンク本体と、前記注入口内で保持される筒状部と該筒状部の下端側開口に設けられたフィルタ部とを有するストレーナと、を備える液体タンクであって、
前記ストレーナの前記筒状部には、該筒状部の内側下方ヘ向かって延びる傾斜部を有する跳ね返り防止部材が配設されていることを特徴とする、ストレーナ付き液体タンク。 A liquid tank comprising a tank body having an inlet, and a strainer having a cylindrical part held in the inlet and a filter part provided at a lower end side opening of the cylindrical part,
The liquid tank with a strainer, wherein the tubular portion of the strainer is provided with an anti-bounce member having an inclined portion extending toward an inner lower side of the tubular portion. 前記跳ね返り防止部材は、前記タンク本体の前記注入口の上端側開口もしくは前記ストレーナの前記筒状部の上端側開口から所定の距離を置いて設けられていることを特徴とする、請求項１に記載のストレーナ付き液体タンク。   The rebound preventing member is provided at a predetermined distance from an upper end side opening of the injection port of the tank body or an upper end side opening of the cylindrical portion of the strainer. Liquid tank with strainer as described. 前記傾斜部は、段階的もしくは連続的に傾斜角が変化していることを特徴とする、請求項１又は２に記載のストレーナ付き液体タンク。   The liquid tank with a strainer according to claim 1 or 2, wherein the inclination angle of the inclined part changes stepwise or continuously. 前記跳ね返り防止部材は、環状、螺旋状、または周方向で部分的に設けられていることを特徴とする、請求項１から３のいずれか一項に記載のストレーナ付き液体タンク。   4. The strainer-equipped liquid tank according to claim 1, wherein the bounce preventing member is provided in an annular shape, a spiral shape, or a partial shape in a circumferential direction. 5. 前記跳ね返り防止部材は、前記筒状部と別体または一体として設けられていることを特徴とする、請求項１から４のいずれか一項に記載のストレーナ付き液体タンク。   5. The strainer-equipped liquid tank according to claim 1, wherein the rebound preventing member is provided separately or integrally with the tubular portion. 6. 前記跳ね返り防止部材は、前記筒状部に着脱可能に配設されていることを特徴とする、請求項５に記載のストレーナ付き液体タンク。   The liquid tank with a strainer according to claim 5, wherein the bounce preventing member is detachably disposed on the cylindrical portion. 前記跳ね返り防止部材は、前記筒状部に設けられた段差部もしくは前記筒状部の上端部に載置されて配設されていることを特徴とする、請求項６に記載のストレーナ付き液体タンク。   The liquid tank with a strainer according to claim 6, wherein the bounce preventing member is placed and disposed on a stepped portion provided in the cylindrical portion or an upper end portion of the cylindrical portion. . 前記筒状部は、前記段差部が前記注入口に設けられた支持部に載置されて前記注入口内で保持されていることを特徴とする、請求項７に記載のストレーナ付き液体タンク。   The liquid tank with a strainer according to claim 7, wherein the cylindrical portion is held in the injection port by placing the stepped portion on a support portion provided in the injection port. 前記跳ね返り防止部材には切欠きが設けられていることを特徴とする、請求項１から８のいずれか一項に記載のストレーナ付き液体タンク。   The liquid tank with a strainer according to any one of claims 1 to 8, wherein the bounce preventing member is provided with a notch. 前記フィルタ部は、前記筒状部から下方へ延びる筒状のストレート部と該ストレート部の下端に設けられた底部とからなることを特徴とする、請求項１から９のいずれか一項に記載のストレーナ付き液体タンク。   The said filter part consists of the cylindrical straight part extended below from the said cylindrical part, and the bottom part provided in the lower end of this straight part, It is any one of Claim 1 to 9 characterized by the above-mentioned. Liquid tank with strainer. 前記フィルタ部は、前記筒状部から下方へ行くに従って縮径するテーパ部と該テーパ部の下端に設けられた底部とからなる逆錐台状を有していることを特徴とする、請求項１から９のいずれか一項に記載のストレーナ付き液体タンク。   The said filter part has an inverted frustum shape which consists of the taper part diameter-reduced as it goes below from the said cylindrical part, and the bottom part provided in the lower end of this taper part, It is characterized by the above-mentioned. The liquid tank with a strainer as described in any one of 1 to 9. 前記底部には、該底部の周囲に沿って環状補強部材が配設されていることを特徴とする、請求項１１に記載のストレーナ付き液体タンク。   The liquid tank with a strainer according to claim 11, wherein an annular reinforcing member is disposed on the bottom along the periphery of the bottom. 前記テーパ部には、前記環状補強部材から前記筒状部まで延びる柱状補強部材が配設されていることを特徴とする、請求項１２に記載のストレーナ付き液体タンク。   13. The strainer-equipped liquid tank according to claim 12, wherein a columnar reinforcing member extending from the annular reinforcing member to the cylindrical portion is disposed in the tapered portion. 前記柱状補強部材は、前記環状補強部材から放射状に複数設けられていることを特徴とする、請求項１３に記載のストレーナ付き液体タンク。   The liquid tank with strainer according to claim 13, wherein a plurality of the columnar reinforcing members are provided radially from the annular reinforcing member.
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