JP4749298B2 - Oil strainer - Google Patents

Oil strainer Download PDF

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JP4749298B2
JP4749298B2 JP2006263887A JP2006263887A JP4749298B2 JP 4749298 B2 JP4749298 B2 JP 4749298B2 JP 2006263887 A JP2006263887 A JP 2006263887A JP 2006263887 A JP2006263887 A JP 2006263887A JP 4749298 B2 JP4749298 B2 JP 4749298B2
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tubular body
welding
filter
welded
strainer
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JP2008082257A (en
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智志 榎田
淳史 幸
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Daikyo Nishikawa Corp
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Daikyo Nishikawa Corp
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Priority to JP2006263887A priority Critical patent/JP4749298B2/en
Priority to CN201210111106.XA priority patent/CN102635421B/en
Priority to CN2010102027528A priority patent/CN101862562B/en
Priority to CN2007101527712A priority patent/CN101153552B/en
Priority to DE102007063724.3A priority patent/DE102007063724B4/en
Priority to DE102007045505A priority patent/DE102007045505B4/en
Priority to US11/905,003 priority patent/US9044697B2/en
Publication of JP2008082257A publication Critical patent/JP2008082257A/en
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Description

本発明は、例えば、自動車の内燃機関等に設けられ、該内燃機関内を循環するオイルを濾過するオイルストレーナに関する。 The present invention is, for example, provided in an internal combustion engine of an automobile, relates to oil stray Na for filtering oil circulating in the internal combustion engine.

従来より、この種のオイルストレーナとして、例えば特許文献１に開示されているように、全体として筒状に形成されたストレーナ本体と、このストレーナ本体の内部に設けられたフィルタとで構成されたものが知られている。ストレーナ本体は、その中心線方向に延びる樹脂製の第１管状体及び第２管状体を組み合わせてなる。上記第１管状体と第２管状体との合わせ部分は溶着されている。上記第１管状体にはオイル流入孔が形成され、第２管状体にはオイル流出孔が形成されている。そして、第１管状体のオイル流入孔から吸い込まれたオイルがフィルタを通過することで濾過された後、第２管状体のオイル流出孔から外部に流出する。   Conventionally, as an oil strainer of this type, as disclosed in, for example, Patent Document 1, a strainer main body formed as a whole in a cylindrical shape and a filter provided inside the strainer main body. It has been known. The strainer body is formed by combining a first tubular body made of resin and a second tubular body extending in the center line direction. The mating portion of the first tubular body and the second tubular body is welded. An oil inflow hole is formed in the first tubular body, and an oil outflow hole is formed in the second tubular body. Then, after the oil sucked from the oil inflow hole of the first tubular body is filtered by passing through the filter, it flows out from the oil outflow hole of the second tubular body to the outside.

また、上記のように２つの樹脂製部材を溶着すると溶着バリが発生する。この溶着バリが発生したときの対策として、例えば、特許文献２には、筒状のケースと該ケースの開口部を覆うカバーとを溶着する場合に、ケース及びカバーの溶着部よりもケース内側寄りに、溶着バリを収容するための溶着バリ収容部を設けることが開示されている。これにより、溶着バリが振動や衝撃等によって溶着部から離脱した場合に、溶着バリを溶着バリ収容部に収容することが可能になり、溶着バリがケース内に落下しなくなる。
特開２００２−２１０３１０号公報 特開２００２−２４８６８５号公報 Further, when two resin members are welded as described above, welding burrs are generated. As a countermeasure when this welding burr occurs, for example, in Patent Document 2, when welding a cylindrical case and a cover that covers the opening of the case, the case and the welded portion of the cover are closer to the inside of the case. Further, it is disclosed that a welding burr accommodating portion for accommodating a welding burr is provided. As a result, when the welding burr is detached from the welded part due to vibration or impact, the welded burr can be accommodated in the welded burr accommodating part, and the welded burr is not dropped into the case.
Japanese Patent Laid-Open No. 2002-210310 Japanese Patent Laid-Open No. 2002-248685

ところで、特許文献２では、バリ収容部が溶着部よりもケース内側、即ち、ケースの中心線方向一側にだけ設けられている。従って、特許文献１のオイルストレーナを構成する第１管状体及び第２管状体を溶着する場合に、特許文献２に開示されている技術を適用してバリ収容部を形成した場合、第１管状体及び第２管状体の溶着部よりも中心線方向一側にだけしか、バリ収容部が形成されないことになる。このため、第１管状体及び第２管状体の溶着部から中心線方向他側へ向けて延びるように形成された溶着バリは、溶着バリ収容部に収容されずに、溶着部から離脱してオイルの貯留空間に落下してしまうことが考えられる。この溶着バリをオイルストレーナがオイルと一緒に吸い込むと、フィルタは目詰まりを起こしやすくなってしまう。   By the way, in patent document 2, the burr | flash accommodating part is provided only in the case inner side rather than the welding part, ie, the centerline direction one side of a case. Therefore, when the first tubular body and the second tubular body constituting the oil strainer of Patent Document 1 are welded, when the burr accommodating portion is formed by applying the technique disclosed in Patent Document 2, the first tubular body is formed. The burr accommodating portion is formed only on one side in the center line direction from the welded portion of the body and the second tubular body. For this reason, the welding burr formed so as to extend from the welded portions of the first tubular body and the second tubular body toward the other side in the center line direction is not accommodated in the welded burr accommodating portion and is detached from the welded portion. It may be dropped into the oil storage space. When this weld burr is sucked together with oil by the oil strainer, the filter is likely to be clogged.

本発明は斯かる点に鑑みてなされたものであり、その目的とするところは、第１管状体及び第２管状体を溶着してストレーナ本体を構成する場合に、溶着部から管状体の中心線方向両側へ延びるように溶着バリが発生しても、これら溶着バリがストレーナ本体から脱落しないようにして、フィルタの目詰まりを防止することにある。   The present invention has been made in view of such a point, and an object of the present invention is to form a strainer main body by welding the first tubular body and the second tubular body to the center of the tubular body. Even if welding burrs are generated so as to extend to both sides in the linear direction, these welding burrs are prevented from falling off from the strainer body to prevent clogging of the filter.

上記目的を達成するために、請求項１の発明では、オイルストレーナの発明として、第１管状体の中心線方向一端側と第２管状体の中心線方向一端側とが溶着されてなるストレーナ本体の内部にフィルタが設けられたオイルストレーナであって、上記第１管状体の一端側の内径は、上記第２管状体の一端側の外径よりも大きく設定され、上記第１管状体の一端側の内周側には、第１溶着部が設けられるとともに、該第１溶着部よりも上記第１管状体の中心線方向一側及び他側に第１空間構成部がそれぞれ設けられ、上記第２管状体の一端側の外周側には、上記第１溶着部に溶着される第２溶着部が設けられるとともに、該第２溶着部よりも上記第２管状体の中心線方向一側及び他側に、上記第１空間構成部と共に溶着バリ収容部を構成する第２空間構成部がそれぞれ設けられ、上記第１溶着部及び第２溶着部は、それぞれ、上記第１管状体及び第２管状体の本体壁部よりも径方向外方に突出して位置付けられている構成とする。 In order to achieve the above object, according to the first aspect of the present invention, as an invention of an oil strainer, a strainer body formed by welding one end side in the center line direction of the first tubular body and one end side in the center line direction of the second tubular body. An inner side of the first tubular body, the inner diameter of the first tubular body is set to be larger than the outer diameter of the second tubular body, and one end of the first tubular body. A first welded portion is provided on the inner peripheral side of the side, and a first space component is provided on one side and the other side of the first tubular body from the first welded portion, respectively, A second welded portion to be welded to the first welded portion is provided on the outer peripheral side of one end side of the second tubular body, and one side in the center line direction of the second tubular body from the second welded portion and On the other side, a welding burr accommodating portion is formed together with the first space constituting portion. Space structure portions are provided respectively, the first welded portion and the second welding portion are each configured that are positioned to protrude radially outward from the body wall portion of the first tubular member and second tubular member to.

請求項２の発明では、請求項１の発明において、フィルタは、第１管状体及び第２管状体の一方に一体成形されている構成とする。 According to a second aspect of the present invention, in the first aspect of the present invention, the filter is formed integrally with one of the first tubular body and the second tubular body.

請求項３の発明では、請求項１の発明において、ストレーナ本体とフィルタとは別体とされ、上記フィルタには、第１管状体と第２管状体とで挟持される挟持部が設けられている構成とする。 According to a third aspect of the present invention, in the first aspect of the present invention, the strainer main body and the filter are separated from each other, and the filter is provided with a clamping portion that is clamped between the first tubular body and the second tubular body. The configuration is as follows .

請求項１の発明によれば、第１管状体の第１溶着部と第２管状体の第２溶着部とを溶着してストレーナ本体を得ることができる。このストレーナ本体の第１溶着部及び第２溶着部よりも中心線方向一側には、第１空間構成部及び第２空間構成部によって溶着バリ収容部を形成でき、また、他側にも同様に溶着バリ収容部を形成できる。このように第１溶着部及び第２溶着部の中心線方向両側に溶着バリ収容部をそれぞれ形成できるので、第１溶着部及び第２溶着部から中心線方向両側へ延びるように発生した溶着バリを、それぞれ、溶着バリ収容部に収容することができる。これにより、溶着バリがストレーナ本体から脱落しなくなるので、オイルと一緒にオイルストレーナに吸い込まれることはなく、フィルタの目詰まりを防止できる。   According to the first aspect of the present invention, the strainer body can be obtained by welding the first welded portion of the first tubular body and the second welded portion of the second tubular body. A welding burr accommodating portion can be formed by the first space constituting portion and the second space constituting portion on one side in the center line direction from the first welded portion and the second welded portion of the strainer main body, and also on the other side. A weld burr accommodating portion can be formed. As described above, since the welding burr accommodating portions can be formed on both sides in the center line direction of the first welding portion and the second welding portion, the welding burrs generated so as to extend from the first welding portion and the second welding portion to both sides in the center line direction. Can be accommodated in the welding burr accommodating portion. As a result, the welding burr does not fall off from the strainer body, so that it is not sucked into the oil strainer together with the oil, and the clogging of the filter can be prevented.

また、第１溶着部及び第２溶着部が第１管状体及び第２管状体の本体壁部よりも径方向外方に突出しているので、溶着作業時に、第１溶着部及び第２溶着部の近傍を第１管状体及び第２管状体の外方から治具で容易にかつ確実に保持でき、治具による力を第１溶着部及び第２溶着部に十分に伝えることができる。これにより、第１溶着部を第２溶着部にしっかりと押さえ付けて両者を確実に溶着できる。 Moreover , since the 1st welding part and the 2nd welding part protrude radially outward rather than the main body wall part of the 1st tubular body and the 2nd tubular body, the 1st welding part and the 2nd welding part are carried out at the time of welding operation | work. Can be easily and reliably held by the jig from the outside of the first tubular body and the second tubular body, and the force by the jig can be sufficiently transmitted to the first welded portion and the second welded portion. Thereby, a 1st welding part can be firmly pressed on a 2nd welding part, and both can be welded reliably.

請求項２の発明によれば、第１管状体及び第２管状体の一方にフィルタを一体成形したので、オイルストレーナを構成する部品点数を少なくでき、組み立て工数を削減できる。 According to the invention of claim 2 , since the filter is integrally formed on one of the first tubular body and the second tubular body, the number of parts constituting the oil strainer can be reduced, and the number of assembly steps can be reduced.

請求項３の発明によれば、フィルタをストレーナ本体と別体にした場合に、第１管状体と第２管状体とを溶着により一体化するだけで、フィルタの挟持部を両管状体で挟持して該フィルタをストレーナ本体に固定することができる。 According to the invention of claim 3 , when the filter is separated from the strainer main body, the first tubular body and the second tubular body are simply integrated by welding, and the sandwiching portion of the filter is sandwiched between both tubular bodies. Thus, the filter can be fixed to the strainer body .

以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

図１は、本発明の実施形態に係るオイルストレーナ１を示すものである。このオイルストレーナ１は、ストレーナ本体１２とフィルタ３（図２に示す）とを備えており、例えば、図示しないが、自動車の内燃機関のオイル貯留空間を構成するオイルパン内に配置されてシリンダブロックに取り付けられている。上記ストレーナ本体１２は、シリンダブロックに取り付けられた状態で略上下方向に延びる円筒形状をなし、上下方向の中間位置で分割され、その上側を構成する流出側管状体１０と、下側を構成する流入側管状体１１とからなっている。これら流出側管状体１０及び流入側管状体１１は樹脂製である。流出側管状体１０の上下寸法は流入側管状体１１の上下寸法よりも長く設定されていて、ストレーナ本体１２の分割面は、該ストレーナ本体１２の下側寄りに位置している。流出側管状体１０の内部に上記フィルタ３が配置された状態で、該流出側管状体１０の中心線方向一端側である下端側と、流入側管状体１１の中心線方向一端側である上端側とが溶着されている。上記流出側管状体１０が第１管状体であり、流入側管状体１１が第２管状体である。   FIG. 1 shows an oil strainer 1 according to an embodiment of the present invention. The oil strainer 1 includes a strainer body 12 and a filter 3 (shown in FIG. 2). For example, although not shown, the oil strainer 1 is disposed in an oil pan that constitutes an oil storage space of an internal combustion engine of an automobile. Is attached. The strainer body 12 has a cylindrical shape extending substantially in the vertical direction in a state of being attached to the cylinder block, and is divided at an intermediate position in the vertical direction, and constitutes the lower side with the outflow side tubular body 10 constituting the upper side thereof. It consists of an inflow side tubular body 11. The outflow side tubular body 10 and the inflow side tubular body 11 are made of resin. The vertical dimension of the outflow side tubular body 10 is set to be longer than the vertical dimension of the inflow side tubular body 11, and the dividing surface of the strainer body 12 is located on the lower side of the strainer body 12. In the state where the filter 3 is arranged inside the outflow side tubular body 10, the lower end side that is one end side in the center line direction of the outflow side tubular body 10 and the upper end that is one end side in the center line direction of the inflow side tubular body 11. The side is welded. The outflow side tubular body 10 is a first tubular body, and the inflow side tubular body 11 is a second tubular body.

上記流出側管状体１０の上部には、略直角に折れ曲がった屈曲部１３が形成されている。流出側管状体１０の上端開口部は、エンジンのオイルポンプの吸入口（図示せず）に接続されるようになっており、ストレーナ本体１２内のオイルを流出させるオイル流出口１０ａを構成している。この流出側管状体１０の上端部には、オイル流出口１０ａを囲むようにフランジ１４が形成されている。このフランジ１４には、シリンダブロックへの締結用の締結部材（図示せず）が挿通する挿通孔１４ａが形成されるとともに、シール部材としてのＯリング（図示せず）が嵌め込まれる溝１４ｂが上記オイル流出口１０ａを囲むように形成されている。上記流出側管状体１０の屈曲部１３よりも下側は略直線状に延びている。流出側管状体１０の上下方向略中央部よりも下側は、上記フィルタ３を収容するフィルタ収容部１５とされていて、フィルタ３の外径に対応して流出側管状体１０の上部よりも拡径されている。   A bent portion 13 that is bent at a substantially right angle is formed at the upper portion of the outflow side tubular body 10. The upper end opening of the outflow side tubular body 10 is connected to an inlet (not shown) of an oil pump of the engine, and constitutes an oil outlet 10a through which oil in the strainer body 12 flows out. Yes. A flange 14 is formed at the upper end of the outflow side tubular body 10 so as to surround the oil outlet 10a. The flange 14 is formed with an insertion hole 14a through which a fastening member (not shown) for fastening to the cylinder block is inserted, and a groove 14b into which an O-ring (not shown) as a seal member is fitted. It is formed so as to surround the oil outlet 10a. The lower side of the bent portion 13 of the outflow side tubular body 10 extends substantially linearly. The lower side of the outflow side tubular body 10 from the substantially central portion in the vertical direction is a filter housing portion 15 that houses the filter 3, and is higher than the upper portion of the outflow side tubular body 10 corresponding to the outer diameter of the filter 3. The diameter has been expanded.

上記フィルタ収容部１５と該フィルタ収容部１５よりも上側の部分とにより、流出側管状体１０の本体壁部１０ｂが構成されている。上記本体壁部１０ｂの下端側には、該本体壁部１０ｂよりも大径な大径部１６が連なっており、図２に示すように、流出側管状体１０の内周面には、上記大径部１６の形成部位に対応して段差部１０ｃが形成されている。また、本体壁部１０ｂの外周面には、大径部１６の形状に対応して、径方向に延びる第１面１０ｄと、中心線方向に延びる第２面１０ｅとが形成されている。上記大径部１６は、フィルタ収容部１５と同心上に位置している。   A main body wall portion 10 b of the outflow side tubular body 10 is configured by the filter housing portion 15 and a portion above the filter housing portion 15. On the lower end side of the main body wall portion 10b, a large-diameter portion 16 larger in diameter than the main body wall portion 10b is connected, and as shown in FIG. A stepped portion 10 c is formed corresponding to the formation site of the large diameter portion 16. In addition, a first surface 10d extending in the radial direction and a second surface 10e extending in the center line direction are formed on the outer peripheral surface of the main body wall portion 10b corresponding to the shape of the large-diameter portion 16. The large diameter portion 16 is located concentrically with the filter housing portion 15.

上記大径部１６の内周側には、図３にも示すように、上側段差部１６ａと、この上側段差部１６ａから下方に離れて位置する下側段差部１６ｂとが形成され、これら段差部１６ａ、１６ｂの間の部分が溶着部１６ｃ（図３にのみ示す）とされている。上側段差部１６ａ及び下側段差部１６ｂは第１空間構成部であり、溶着部１６ｃは第１溶着部である。   As shown in FIG. 3, an upper stepped portion 16a and a lower stepped portion 16b positioned downward from the upper stepped portion 16a are formed on the inner peripheral side of the large diameter portion 16, and these steps are formed. A portion between the portions 16a and 16b is a welded portion 16c (shown only in FIG. 3). The upper step portion 16a and the lower step portion 16b are first space constituting portions, and the welding portion 16c is a first welding portion.

一方、図２に示すように、上記流入側管状体１１は、本体壁部１１ｂと、該本体壁部１１ｂの上端側を囲むように形成された外筒部３０とを備えている。本体壁部１１ｂは、略直線状に延びる円筒形状をなしている。本体壁部１１ｂの外径は、上記流出側管状体１０のフィルタ収容部１５よりも小径とされ、下側へ行くほど縮径する緩いテーパ形状をなしている。本体壁部１１ｂの下端開口部は、オイルパン内のオイルをオイルストレーナに流入させるためのオイル流入口１１ａ（図３に示す）を構成している。図２に示すように、本体壁部１１ｂの上端部の外周面には、径方向外方へ突出して周方向に延びる環状部１１ｃが形成されている。この環状部１１ｃの突出方向先端部に、上記外筒部３０が一体成形されている。外筒部３０と本体壁部１１ｂとの間には、隙間が設けられている。この隙間内には、外筒部３０と本体壁部１１ｂとを繋ぐ複数のリブ３２が外筒部３０の周方向に間隔をあけて配置されている。   On the other hand, as shown in FIG. 2, the inflow side tubular body 11 includes a main body wall portion 11b and an outer cylinder portion 30 formed so as to surround the upper end side of the main body wall portion 11b. The main body wall portion 11b has a cylindrical shape extending substantially linearly. The outer diameter of the main body wall portion 11b is smaller than the filter housing portion 15 of the outflow side tubular body 10, and has a loose taper shape that decreases in diameter toward the lower side. The lower end opening of the main body wall 11b constitutes an oil inlet 11a (shown in FIG. 3) for allowing the oil in the oil pan to flow into the oil strainer. As shown in FIG. 2, an annular portion 11c that protrudes radially outward and extends in the circumferential direction is formed on the outer peripheral surface of the upper end portion of the main body wall portion 11b. The outer cylinder part 30 is integrally formed at the projecting direction tip of the annular part 11c. A gap is provided between the outer cylinder part 30 and the main body wall part 11b. In this gap, a plurality of ribs 32 connecting the outer cylinder part 30 and the main body wall part 11 b are arranged at intervals in the circumferential direction of the outer cylinder part 30.

上記外筒部３０の外径は、大径部１６よりも小さく設定されている。外筒部３０の中心線Ｙは、本体壁部１１ｂの中心線と略一致している。外筒部３０の外周面には、図３にも示すように、上側段差部３０ａと、この上側段差部３０ａから下方に離れて位置する下側段差部３０ｂとが形成され、これら段差部３０ａ、３０ｂの間の部分が溶着部３０ｃ（図３にのみ示す）とされている。上側段差部３０ａ及び下側段差部３０ｂは第２空間構成部であり、溶着部３０ｃは第２溶着部である。上記外筒部３０の上側段差部３０ａは、後述の溶着工程において、上記上側段差部１６ａと向かい合うように位置付けられており、また、外筒部３０の下側段差部３０ｂも同様に上記下側段差部１６ｂと向かい合うように位置付けられている。   The outer diameter of the outer cylinder portion 30 is set smaller than that of the large diameter portion 16. The center line Y of the outer cylinder part 30 is substantially in agreement with the center line of the main body wall part 11b. As shown in FIG. 3, an upper stepped portion 30a and a lower stepped portion 30b positioned downward from the upper stepped portion 30a are formed on the outer peripheral surface of the outer cylindrical portion 30, and these stepped portions 30a are formed. , 30b is a welded portion 30c (shown only in FIG. 3). The upper step portion 30a and the lower step portion 30b are second space constituting portions, and the welding portion 30c is a second welding portion. The upper step part 30a of the outer cylinder part 30 is positioned so as to face the upper step part 16a in the welding step described later, and the lower step part 30b of the outer cylinder part 30 is similarly located on the lower side. It is positioned so as to face the step portion 16b.

上記外筒部３０の上端部には、上方へ突出して環状に延びるフィルタ押さえ部３０ｄが形成されている。このフィルタ押さえ部３０ｄの断面形状は、上側へ行くほど尖った形状となっており、上端部は、本体壁部１１ｂの上端部よりも上方に位置している。外筒部３０の下端部には、径方向外方へ突出して周方向に延びる鍔部３０ｅが形成されている。   At the upper end portion of the outer cylinder portion 30, a filter pressing portion 30d that protrudes upward and extends in an annular shape is formed. The cross-sectional shape of the filter pressing portion 30d is a pointed shape as it goes upward, and the upper end portion is located above the upper end portion of the main body wall portion 11b. At the lower end portion of the outer cylinder portion 30, a flange portion 30e that protrudes radially outward and extends in the circumferential direction is formed.

また、上記フィルタ３は、全体としてフィルタ収容部１５の中心線に沿って延びる有底筒状をなしており、その底壁部側が上に位置するようにフィルタ収容部１５に配置されている。フィルタ３の底壁部及び周壁部には、オイル濾過用の網目を構成する網目部３ａが形成されている。フィルタ３の底壁部と反対側の開口側には、径方向外方へ延びるフランジ３ｂが形成されている。このフランジ３ｂの外径は、フィルタ収容部１５の内径よりも大きく、かつ、大径部１６の内径よりも若干小さめに設定されている。このフランジ３ｂが流出側管状体１０の段差部１０ｃに嵌り、この段差部１０ｃと上記フィルタ押さえ部３０ｄとで厚み方向に挟持されるようになっている。これにより、フィルタ３がストレーナ本体１２に固定されている。このフランジ３ｂが挟持部である。また、上記網目部３ａには、複数本のリブ３ｃが設けられており、これらリブ３ｃ、網目部３ａ及びフランジ３ｂは、樹脂材によって一体成形されている。   The filter 3 has a bottomed cylindrical shape that extends along the center line of the filter housing portion 15 as a whole, and is disposed in the filter housing portion 15 so that the bottom wall portion side is located on the upper side. On the bottom wall portion and the peripheral wall portion of the filter 3, a mesh portion 3a constituting a mesh for oil filtration is formed. On the opening side opposite to the bottom wall portion of the filter 3, a flange 3b extending outward in the radial direction is formed. The outer diameter of the flange 3 b is set to be larger than the inner diameter of the filter housing portion 15 and slightly smaller than the inner diameter of the large diameter portion 16. The flange 3b fits into the stepped portion 10c of the outflow side tubular body 10, and is sandwiched in the thickness direction by the stepped portion 10c and the filter pressing portion 30d. Thereby, the filter 3 is fixed to the strainer body 12. This flange 3b is a clamping part. The mesh part 3a is provided with a plurality of ribs 3c. The ribs 3c, the mesh part 3a, and the flange 3b are integrally formed of a resin material.

次に、上記のように構成されたオイルストレーナ１の製造方法について説明する。始めに、上記流出側管状体１０及び流入側管状体１１を射出成形法により成形する。これが本発明の第１管状体成形工程及び第２管状体成形工程である。また、フィルタ３も射出成形法により成形しておく。   Next, the manufacturing method of the oil strainer 1 comprised as mentioned above is demonstrated. First, the outflow side tubular body 10 and the inflow side tubular body 11 are formed by an injection molding method. This is the first tubular body forming step and the second tubular body forming step of the present invention. The filter 3 is also formed by an injection molding method.

その後、流出側管状体１０と流入側管状体１１とを超音波溶着法により溶着して一体化する溶着工程に移る。図３に示すように、このとき使用される超音波溶着機Ａは、上記流出側管状体１０を保持する受け治具Ａ１と、流入側管状体１１を保持するホーンＡ２と、ホーンＡ２を超音波で振動させる加振器Ａ３とを備えており、受け治具Ａ１が下側に配置され、その上側にホーンＡ２及び加振器Ａ３が配置されている。   Then, it moves to the welding process which welds and integrates the outflow side tubular body 10 and the inflow side tubular body 11 by an ultrasonic welding method. As shown in FIG. 3, the ultrasonic welding machine A used at this time has a receiving jig A <b> 1 that holds the outflow side tubular body 10, a horn A <b> 2 that holds the inflow side tubular body 11, and a horn A <b> 2. A vibration exciter A3 that vibrates with sound waves is provided, a receiving jig A1 is disposed on the lower side, and a horn A2 and a vibration exciter A3 are disposed on the upper side.

まず、上記流出側管状体１０の大径部１６側から、上記フィルタ３を挿入していく。このフィルタ３のフランジ３ｂが流出側管状体１０の段差部１０ｃに達して嵌ると、この段差部１０ｃによりフィルタ３が位置決めされる。そして、流出側管状体１０を、大径部１６側が上方に向いた状態で受け治具Ａ１に保持させる。また、流入側管状体１１を、外筒部３０側が下方に向いた状態でホーンＡ２に保持させる。つまり、溶着工程においては、流出側管状体１０と流入側管状体１１との位置関係が、完成品の使用状態に対し上下逆となっており、流出側管状体１０が下側に位置し、流入側管状体１１が上側に位置している。また、このとき、大径部１６の中心線と外筒部３０の中心線とは一致するようになっている。   First, the filter 3 is inserted from the large diameter portion 16 side of the outflow side tubular body 10. When the flange 3b of the filter 3 reaches and fits the stepped portion 10c of the outflow side tubular body 10, the filter 3 is positioned by the stepped portion 10c. And the outflow side tubular body 10 is hold | maintained at the receiving jig | tool A1 in the state which the large diameter part 16 side faced upwards. Further, the inflow side tubular body 11 is held by the horn A2 with the outer cylinder part 30 side facing downward. That is, in the welding process, the positional relationship between the outflow side tubular body 10 and the inflow side tubular body 11 is upside down with respect to the use state of the finished product, and the outflow side tubular body 10 is positioned on the lower side, The inflow side tubular body 11 is located on the upper side. At this time, the center line of the large-diameter portion 16 and the center line of the outer cylinder portion 30 coincide with each other.

上記流出側管状体１０を受け治具Ａ１に保持させた状態では、大径部１６が本体壁部１０ｂよりも径方向外方へ突出しているので、上記大径部１６に対応して形成された第１面１０ｄ及び第２面１０ｅに受け治具Ａ１が当接している。このとき、本体壁部１０ｂの第１面１０ｄよりも流出側に、受け治具Ａ１を当接させないようにしてもよい。また、同様に、流入側管状体１１の外筒部３０が本体壁部１１ｂよりも径方向外方へ突出しているので、外筒部３０の鍔部３０ｅ側にホーンＡ２が当接している。   In the state where the outflow side tubular body 10 is received and held by the jig A1, the large diameter portion 16 protrudes outward in the radial direction from the main body wall portion 10b, so that it is formed corresponding to the large diameter portion 16. The receiving jig A1 is in contact with the first surface 10d and the second surface 10e. At this time, the receiving jig A1 may not be brought into contact with the outflow side of the first surface 10d of the main body wall 10b. Similarly, since the outer cylindrical portion 30 of the inflow side tubular body 11 protrudes radially outward from the main body wall portion 11b, the horn A2 is in contact with the flange portion 30e side of the outer cylindrical portion 30.

そして、ホーンＡ２を下方へ移動させていくと、流入側管状体１１の外筒部３０が流出側管状体１０の大径部１６に挿入されていき、やがて、流出側管状体１０の溶着部１６ｃと流入側管状体１１の溶着部３０ｃとが接触する。このとき、流出側管状体１０の上側段差部１６ａと、流入側管状体１１の上側段差部３０ａとが向かい合うとともに、流出側管状体１０の下側段差部１６ｂと、流入側管状体１１の下側段差部３０ｂとが向かい合う。   When the horn A2 is moved downward, the outer cylindrical portion 30 of the inflow side tubular body 11 is inserted into the large diameter portion 16 of the outflow side tubular body 10, and eventually the welded portion of the outflow side tubular body 10 is obtained. 16c and the welding part 30c of the inflow side tubular body 11 contact. At this time, the upper step part 16a of the outflow side tubular body 10 and the upper step part 30a of the inflow side tubular body 11 face each other, and the lower step part 16b of the outflow side tubular body 10 and the lower side of the inflow side tubular body 11 The side step part 30b faces each other.

しかる後、ホーンＡ２を下方へ押しつけながら加振器Ａ３により超音波振動させて、流出側管状体１０の溶着部１６ｃ及び流入側管状体１１の溶着部３０ｃを摩擦熱により溶融させる。溶着部１６ｃ、３０ｃが溶融するに従って流入側管状体１１が下方へ移動していく。このことで、図４に示すように、上記両上側段差部１６ａ、３０ａによって空間が構成され、これが流出側に位置する流出側溶着バリ収容部Ｓ１となり、また、両下側段差部１６ｂ、３０ｂによっても空間が構成され、これが流入側に位置する流入側溶着バリ収容部Ｓ２となる。つまり、溶着部１６ｃ、３０ｃの上下方向両側流出側及び流入側に流出側溶着バリ収容部Ｓ１及び流入側溶着バリ収容部Ｓ２がそれぞれ形成されることになる。そして、上記流入側管状体１１の下方への移動距離が所定距離となった時点で、フィルタ押さえ部３０ｄがフィルタ３のフランジ３ｂに当たってフランジ３ｂが流出側管状体１０と流入側管状体１１とに挟持された状態となり、加振器Ａ３の振動を停止するとともに、ホーンＡ２の下方への移動を停止する。   Thereafter, the horn A2 is pressed downward and is vibrated ultrasonically by the vibrator A3, and the welded portion 16c of the outflow side tubular body 10 and the welded portion 30c of the inflow side tubular body 11 are melted by frictional heat. As the welded portions 16c and 30c melt, the inflow side tubular body 11 moves downward. As a result, as shown in FIG. 4, a space is formed by the upper and lower step portions 16a and 30a, which becomes the outflow side welding burr accommodating portion S1 located on the outflow side, and the lower step portions 16b and 30b. A space is also formed by this, and this becomes the inflow side welding burr accommodating portion S2 located on the inflow side. That is, the outflow side welding burr accommodating portion S1 and the inflow side welding burr accommodating portion S2 are respectively formed on the outflow side and the inflow side on both sides in the vertical direction of the welding portions 16c and 30c. When the downward movement distance of the inflow side tubular body 11 reaches a predetermined distance, the filter pressing portion 30d hits the flange 3b of the filter 3 so that the flange 3b is brought into contact with the outflow side tubular body 10 and the inflow side tubular body 11. The sandwiched state is entered, and the vibration of the vibrator A3 is stopped, and the downward movement of the horn A2 is stopped.

上記溶着工程においては、流出側管状体１０及び流入側管状体１１の溶着部１６ｃ、３０ｃから流出側へ向けて延びる溶着バリと、流入側へ向けて延びる溶着バリとが発生する。流出側へ向けて延びる溶着バリは流出側溶着バリ収容部Ｓ１に収容され、流入側へ向けて延びる溶着バリは流入側溶着バリ収容部Ｓ２に収容される。   In the welding step, a welding burr extending toward the outflow side from the welding portions 16c and 30c of the outflow side tubular body 10 and the inflow side tubular body 11 and a welding burr extending toward the inflow side are generated. The welding burr extending toward the outflow side is accommodated in the outflow side welding burr accommodating portion S1, and the welding burr extending toward the inflow side is accommodated in the inflow side welding burr accommodating portion S2.

以上説明したように、この実施形態に係るオイルストレーナ１によれば、溶着部１６ｃ、３０ｃよりも流出側及び流入側に流出側バリ収容部Ｓ１及び流入側バリ収容部Ｓ２をそれぞれ形成できる。これにより、溶着部１６ｃ、３０ｃから流出側及び流入側へ延びるように発生した溶着バリを、それぞれ、流出側及び流入側溶着バリ収容部Ｓ１、Ｓ２に収容することができる。これにより、溶着バリがストレーナ本体１２から脱落しなくなるので、オイルと一緒にオイルストレーナ１に吸い込まれることはなく、フィルタ３の目詰まりを防止できる。   As described above, according to the oil strainer 1 according to this embodiment, the outflow side burr storage portion S1 and the inflow side burr storage portion S2 can be formed on the outflow side and the inflow side of the welded portions 16c and 30c, respectively. Thereby, the welding burr | flash produced | generated so that it may extend to the outflow side and inflow side from the welding parts 16c and 30c can be accommodated in the outflow side and inflow side welding burr | flash accommodating part S1, S2, respectively. As a result, the welding burr does not fall off from the strainer body 12, and therefore, the filter 3 is prevented from being clogged without being sucked into the oil strainer 1 together with the oil.

また、上記溶着部１６ｃが流出側管状体１０の本体壁部１０ｂよりも径方向外方に突出して位置しているので、溶着工程において、溶着部１６ｃの近傍を、第１管状体１０の外方の第１面１０ｄ及び第２面１０ｅを介して受け具Ａ１で容易かつ確実に保持でき、さらに、上記溶着部３０ｃが流入側管状体１１の本体壁部１１ｂよりも径方向外方に突出して位置しているので、溶着部３０ｃの近傍を、第２管状体１１の外方の鍔部３０ｅを介してホーンＡ２で容易かつ確実に保持できる。これにより、受け具Ａ１及びホーンＡ２による押し付け力を溶着部１６ｃ、３０ｃに十分に伝えることができる。このことに加え、受け治具Ａ１が、大径部１６の外周面である第２面１０ｅに当接していることにより、溶着部１６ｃが外側へ変位して逃げてしまうのを防止でき、さらに、流入側管状体１１の本体壁部１１ｂと外筒部３０とを複数のリブ３２で繋ぐことで溶着部３０ｃの剛性を高めて、溶着部３０ｃが内側へ変位して逃げてしまうのを防止できる。以上のことにより、流出側管状体１０の溶着部１６ｃを流入側管状体１１の溶着部３０ｃにしっかりと押さえ付けて溶着部１６ｃ、３０ｃを確実に溶着できる。   In addition, since the welded portion 16c is positioned so as to protrude radially outward from the main body wall portion 10b of the outflow side tubular body 10, the vicinity of the welded portion 16c is located outside the first tubular body 10 in the welding step. Can be easily and reliably held by the receiver A1 via the first surface 10d and the second surface 10e, and the welded portion 30c protrudes radially outward from the main body wall portion 11b of the inflow side tubular body 11. Therefore, the vicinity of the welded portion 30c can be easily and reliably held by the horn A2 via the outer flange portion 30e of the second tubular body 11. Thereby, the pressing force by the receiver A1 and the horn A2 can be sufficiently transmitted to the welding portions 16c and 30c. In addition to this, since the receiving jig A1 is in contact with the second surface 10e which is the outer peripheral surface of the large diameter portion 16, it is possible to prevent the welded portion 16c from being displaced outward and escaping. The rigidity of the welded portion 30c is increased by connecting the main body wall portion 11b of the inflow side tubular body 11 and the outer cylindrical portion 30 with a plurality of ribs 32, and the welded portion 30c is prevented from escaping and escaping. it can. By the above, the welding part 16c of the outflow side tubular body 10 can be firmly pressed on the welding part 30c of the inflow side tubular body 11, and the welding parts 16c and 30c can be reliably welded.

また、流出側管状体１０と流入側管状体１１とを溶着するだけで、フィルタ３のフランジ３ｂを両管状体１０、１１で挟持して該フィルタ３をストレーナ本体１２に固定することができる。   Further, by simply welding the outflow side tubular body 10 and the inflow side tubular body 11, the filter 3 can be fixed to the strainer body 12 by sandwiching the flange 3 b of the filter 3 between the tubular bodies 10 and 11.

尚、この実施形態では、流入側管状体１１の環状部１１ｃを溶着部３０ｃよりも流出側に位置付けているが、これに限らず、環状部１１ｃを、中心線方向について溶着部３０ｃと同じ位置に設けてもよい。これにより、溶着部３０ｃが環状部１１ｃにより内側から支えられることになって剛性を向上させることができる。その結果、溶着工程において、溶着部３０ｃが内側へ変位して逃げてしまうのを防止できる。   In this embodiment, the annular portion 11c of the inflow side tubular body 11 is positioned on the outflow side with respect to the welding portion 30c. However, the present invention is not limited to this, and the annular portion 11c is located at the same position as the welding portion 30c in the center line direction. May be provided. Thereby, the welding part 30c is supported from the inner side by the annular part 11c, and the rigidity can be improved. As a result, in the welding process, it is possible to prevent the welded portion 30c from being displaced inward and escaping.

また、この実施形態では、ストレーナ本体１２とフィルタ３とを別体としたが、これに限らず、例えば、図５に示す変形例のように、フィルタ３を流入側管状体１１の本体壁部１１ｂに一体成形するようにしてもよい。これにより、オイルストレーナ１を構成する部品点数を少なくでき、組み立て工数を削減できる。また、図示しないが、フィルタ３は流出側管状体１０に一体成形するようにしてもよい。   In this embodiment, the strainer body 12 and the filter 3 are separated from each other. However, the present invention is not limited to this. For example, as in the modification shown in FIG. It may be formed integrally with 11b. Thereby, the number of parts which comprise oil strainer 1 can be decreased, and an assembly man-hour can be reduced. Although not shown, the filter 3 may be integrally formed with the outflow side tubular body 10.

また、この実施形態では、流出側管状体１０と流入側管状体１１とを超音波溶着させるようにしているが、これに限らず、スピン溶着するようにしてもよい。この場合、流出側管状体１０を固定しておき、流入側管状体１１を、超音波溶着法の場合と同様に流出側管状体１０に押し付けて回転させる。このときに発生した溶着バリも、溶着バリ収容部Ｓ１、Ｓ２に収容することができる。   In this embodiment, the outflow side tubular body 10 and the inflow side tubular body 11 are ultrasonically welded. However, the present invention is not limited to this, and spin welding may be performed. In this case, the outflow side tubular body 10 is fixed, and the inflow side tubular body 11 is pressed against the outflow side tubular body 10 and rotated in the same manner as in the ultrasonic welding method. The welding burr generated at this time can also be accommodated in the welding burr accommodating portions S1 and S2.

また、上記ストレーナ１は、内燃機関だけでなく、自動車の自動変速機や、他の動力機械等のオイル濾過部として使用することが可能である。   Further, the strainer 1 can be used not only as an internal combustion engine but also as an oil filtration part for an automatic transmission of an automobile or other power machine.

以上説明したように、本発明に係るオイルストレーナは、例えば、内燃機関のオイルパン内に配設するのに適している。 As described above, the oil strainer according to the present invention, for example, that is suitable to arrange in the oil pan of an internal combustion engine.

本発明の実施形態に係るオイルストレーナの斜視図である。It is a perspective view of the oil strainer which concerns on embodiment of this invention. 図１のII−II線における断面図である。It is sectional drawing in the II-II line of FIG. 流出側管状体と流入側管状体とを溶着する直前の状態を示す図２に相当する図である。It is a figure equivalent to Drawing 2 showing the state just before welding an outflow side tubular body and an inflow side tubular body. 流出側管状体と流入側管状体とを溶着した状態を示す図３に相当する図である。It is a figure equivalent to Drawing 3 showing the state where the outflow side tubular body and the inflow side tubular body were welded. 実施形態の変形例に係る図２に相当する図である。It is a figure equivalent to FIG. 2 which concerns on the modification of embodiment.

１ オイルストレーナ
２ ストレーナ本体
３ フィルタ
１０ 流出側管状体（第１管状体）
１０ｂ 本体壁部
１１ 流入側管状体（第２管状体）
１１ｂ 本体壁部
１６ 大径部
１６ａ、１６ｂ 段差部（第１空間構成部）
１６ｃ 溶着部（第１溶着部）
３０ 外筒部
３０ａ、３０ｂ 段差部（第２空間構成部）
３０ｃ 溶着部（第２溶着部）
３０ｅ 鍔部（挟持部）
Ａ 溶着機
Ｓ１ 流出側溶着バリ収容部
Ｓ２ 流入側溶着バリ収容部 DESCRIPTION OF SYMBOLS 1 Oil strainer 2 Strainer main body 3 Filter 10 Outflow side tubular body (1st tubular body)
10b Main body wall 11 Inflow side tubular body (second tubular body)
11b Main body wall part 16 Large diameter part 16a, 16b Step part (1st space structure part)
16c Welding part (first welding part)
30 outer cylinder part 30a, 30b level | step difference part (2nd space structure part)
30c Welding part (second welding part)
30e collar (clamping part)
A welding machine S1 outflow side welding burr storage part S2 inflow side welding burr storage part

Claims (3)

第１管状体の中心線方向一端側と第２管状体の中心線方向一端側とが溶着されてなるストレーナ本体の内部にフィルタが設けられたオイルストレーナであって、
上記第１管状体の一端側の内径は、上記第２管状体の一端側の外径よりも大きく設定され、
上記第１管状体の一端側の内周側には、第１溶着部が設けられるとともに、該第１溶着部よりも上記第１管状体の中心線方向一側及び他側に第１空間構成部がそれぞれ設けられ、
上記第２管状体の一端側の外周側には、上記第１溶着部に溶着される第２溶着部が設けられるとともに、該第２溶着部よりも上記第２管状体の中心線方向一側及び他側に、上記第１空間構成部と共に溶着バリ収容部を構成する第２空間構成部がそれぞれ設けられ、
上記第１溶着部及び第２溶着部は、それぞれ、上記第１管状体及び第２管状体の本体壁部よりも径方向外方に突出して位置付けられていることを特徴とするオイルストレーナ。 An oil strainer in which a filter is provided inside a strainer body in which one end side in the center line direction of the first tubular body and one end side in the center line direction of the second tubular body are welded,
An inner diameter on one end side of the first tubular body is set larger than an outer diameter on one end side of the second tubular body,
A first welded portion is provided on the inner peripheral side of the one end side of the first tubular body, and a first space configuration is provided on one side and the other side in the center line direction of the first tubular body from the first welded portion. Each part is provided,
A second welded portion welded to the first welded portion is provided on the outer peripheral side of one end side of the second tubular body, and one side in the center line direction of the second tubular body from the second welded portion. And on the other side, the second space constituting part that constitutes the welding burr accommodating part together with the first space constituting part is provided , respectively .
The oil strainer according to claim 1, wherein the first welded portion and the second welded portion are positioned to project radially outward from the main body wall portions of the first tubular body and the second tubular body, respectively . 請求項１に記載のオイルストレーナにおいて、
フィルタは、第１管状体及び第２管状体の一方に一体成形されていることを特徴とするオイルストレーナ。 The oil strainer according to claim 1 ,
An oil strainer, wherein the filter is integrally formed with one of the first tubular body and the second tubular body. 請求項１に記載のオイルストレーナにおいて、
ストレーナ本体とフィルタとは別体とされ、
上記フィルタには、第１管状体と第２管状体とで挟持される挟持部が設けられていることを特徴とするオイルストレーナ。 The oil strainer according to claim 1 ,
The strainer body and the filter are separated.
An oil strainer, wherein the filter is provided with a clamping portion that is clamped between the first tubular body and the second tubular body.
JP2006263887A 2006-09-28 2006-09-28 Oil strainer Active JP4749298B2 (en)

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JP2006263887A JP4749298B2 (en) 2006-09-28 2006-09-28 Oil strainer
CN2010102027528A CN101862562B (en) 2006-09-28 2007-09-20 Filter and oil strainer
CN2007101527712A CN101153552B (en) 2006-09-28 2007-09-20 Filter, oil strainer and method for manufacturing oil strainer
CN201210111106.XA CN102635421B (en) 2006-09-28 2007-09-20 Oil strainer
DE102007063724.3A DE102007063724B4 (en) 2006-09-28 2007-09-24 Filter insert and filter
DE102007045505A DE102007045505B4 (en) 2006-09-28 2007-09-24 Filter cartridge, oil filter and method of making an oil filter
US11/905,003 US9044697B2 (en) 2006-09-28 2007-09-27 Oil strainer with fusion bonded body, integral filter, and bonding flash accommodation parts

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