JP2016008551A - Oil strainer - Google Patents

Oil strainer Download PDF

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JP2016008551A
JP2016008551A JP2014129559A JP2014129559A JP2016008551A JP 2016008551 A JP2016008551 A JP 2016008551A JP 2014129559 A JP2014129559 A JP 2014129559A JP 2014129559 A JP2014129559 A JP 2014129559A JP 2016008551 A JP2016008551 A JP 2016008551A
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jig
welding
casing
oil
component member
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JP6340263B2 (en
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俊哉 高野
Toshiya Takano
俊哉 高野
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DaikyoNishikawa Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/14—Filters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

PROBLEM TO BE SOLVED: To reliably set a constituent member of a casing to a tool for welding without forming a projection on the outer surface of the casing.SOLUTION: A casing 10 has a resin upper side member 20 and a resin lower side member 30 welded together. The lower side member 30 has a tool engagement recess 36a formed to open to the upper side member 20 side. The tool engagement recess 36a is engaged by a tool for use in welding.

Description

本発明は、例えば車両のエンジン等に設けられるオイルストレーナに関するものである。   The present invention relates to an oil strainer provided in, for example, an engine of a vehicle.

従来より、この種のオイルストレーナとして、樹脂製のケーシングの内部にオイルを濾過するためのフィルタを収容したものが知られている（例えば、特許文献１参照）。特許文献１のケーシングは、長細い形状をしていて、上下方向に２分割された上側部材と下側部材とを備えている。上側部材にはエンジンのオイル吸入口に接続されるオイル流出口が形成され、下側部材にはオイルパン内のオイルをケーシング内に吸入するためのオイル流入口が形成されている。また、上側部材の開放側の周縁部には溶着用突条部が形成され、下側部材の開放側の周縁部にも溶着用突条部が形成されている。そして、フィルタを上側部材と下側部材との一方の部材に収容した状態で、両溶着用突条部を熱板によって加熱して溶融させ、この溶融状態の両溶着用突条部を圧接して溶着するようにしている。   Conventionally, as this type of oil strainer, one in which a filter for filtering oil is accommodated in a resin casing is known (for example, see Patent Document 1). The casing of Patent Document 1 has a long and thin shape, and includes an upper member and a lower member that are divided into two in the vertical direction. The upper member is formed with an oil outlet connected to the engine oil inlet, and the lower member is formed with an oil inlet for sucking oil in the oil pan into the casing. Also, a welding ridge is formed on the peripheral edge of the upper member on the open side, and a welding ridge is also formed on the peripheral edge on the open side of the lower member. Then, in a state where the filter is accommodated in one member of the upper member and the lower member, the both welding protrusions are heated and melted by the hot plate, and the both welding protrusions in the molten state are pressed against each other. To be welded.

特開２００５−２２６５３５号公報JP 2005-226535 A

特許文献１のように上側部材及び下側部材を樹脂製とした場合には、両溶着用突条部を溶着することでシール性を確保しながら上側部材及び下側部材を強固に一体化することができる。しかしながら、一般に、溶着時には、上側部材及び下側部材をそれぞれ上側治具及び下側治具に保持しておき、この保持状態で熱板による加熱を行う。このとき、上側部材や下側部材には樹脂成形時の反り等が生じている場合があるので、上側部材の外面や下側部材の外面に治具を係合させるための突部を設け、突部に治具を係合させて治具側へ強く引きつけて上側部材や下側部材を矯正する必要がある。   When the upper member and the lower member are made of resin as in Patent Document 1, the upper member and the lower member are firmly integrated while securing the sealing performance by welding both welding protrusions. be able to. However, generally, at the time of welding, the upper member and the lower member are held by the upper jig and the lower jig, respectively, and heating by a hot plate is performed in this holding state. At this time, the upper member and the lower member may be warped during resin molding, so a protrusion for engaging a jig with the outer surface of the upper member or the outer surface of the lower member is provided, It is necessary to correct the upper member and the lower member by engaging the jig with the protrusion and pulling it strongly to the jig side.

ところが、オイルストレーナが配設されるオイルパンの内部にはバッフル板等の他の部品があるので、オイルストレーナの上側部材や下側部材の外面に治具を係合させるための突部を設けると、その突部が他の部品に当たってオイルストレーナを所定の組付位置に組み付けるのが難しくなる恐れがある。これを回避するためには、オイルストレーナと他の部品との隙間を予め大きく確保しておく必要があり、この隙間が組み付け後にはデッドスペースとなってしまうという問題がある。   However, since there are other parts such as a baffle plate inside the oil pan in which the oil strainer is disposed, a protrusion for engaging a jig is provided on the outer surface of the upper or lower member of the oil strainer. Then, there is a possibility that it will be difficult to assemble the oil strainer at a predetermined assembling position because the protrusion hits other parts. In order to avoid this, it is necessary to secure a large gap between the oil strainer and other components in advance, and this gap becomes a dead space after assembly.

また、オイルストレーナの上側部材や下側部材の外面に治具を係合させるための突部を設ける場合には、それら部材の成形型にスライド型を設定しなければならないことがあり、この場合には型費の高騰を招くという問題がある。   In addition, when providing protrusions for engaging jigs on the outer surfaces of the upper and lower members of the oil strainer, it may be necessary to set a slide mold for the mold of these members. Has the problem of increasing mold costs.

本発明は、か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、ケーシングの外面に突部を形成することなくケーシングの構成部材を溶着用の治具に確実にセットできるようにすることにある。   The present invention has been made in view of such a point, and an object of the present invention is to ensure that the constituent members of the casing can be reliably set on the welding jig without forming protrusions on the outer surface of the casing. There is to do.

上記目的を達成するために、第１の発明は、
オイルを濾過するためのフィルタと、
上記フィルタを収容するケーシングとを備え、
上記ケーシングに形成されたオイル流入口から該ケーシングの内部に流入したオイルを上記フィルタによって濾過して上記ケーシングに形成されたオイル流出口から流出させるように構成されたオイルストレーナにおいて、
上記ケーシングは、樹脂製の第１構成部材と第２構成部材とが互いに溶着されてなるものであり、
上記第１構成部材における上記第２構成部材が溶着される側には、該第２構成部材側に開放するように形成されて溶着時の治具が係合する治具係合凹部が設けられていることを特徴とする。 In order to achieve the above object, the first invention provides:
A filter for filtering oil;
A casing for housing the filter,
In the oil strainer configured to filter the oil flowing into the casing from the oil inlet formed in the casing through the filter and out the oil outlet formed in the casing,
The casing is formed by welding a first component member made of resin and a second component member,
On the side of the first component member to which the second component member is welded, a jig engaging recess is formed so as to open to the second component member side and engage with a jig at the time of welding. It is characterized by.

この構成によれば、第１構成部材を溶着用の治具にセットする際に、治具を治具係合凹部に係合させることで、第１構成部材が治具に確実にセットされる。これにより、第１構成部材に樹脂成形時の反り等が発生していても治具によって矯正されるので、第１構成部材と第２構成部材とが確実に溶着される。   According to this configuration, when the first component member is set on the welding jig, the first component member is reliably set on the jig by engaging the jig with the jig engaging recess. . As a result, even if warpage or the like during resin molding occurs on the first component member, it is corrected by the jig, so that the first component member and the second component member are reliably welded.

また、治具が係合するのは治具係合凹部であるため、ケーシングの外面から突出する突部を設けた場合のように他の部品に当たることはなく、オイルストレーナを所定の組付位置に組み付ける作業が容易に行えるようになる。   In addition, since the jig engages with the jig engaging recess, it does not hit other parts as in the case of providing a protruding part that protrudes from the outer surface of the casing, and the oil strainer is placed at a predetermined assembly position. Can be easily assembled.

さらに、第１構成部材の治具係合凹部が第２構成部材側に開放する形状であるため、第２構成部材を成形する成形型の移動方向に開放させることが可能になる。これにより、治具係合凹部を成形するためのスライド型を設けずに済むので、型費が安価になる。   Furthermore, since the jig engaging recess of the first component member is open to the second component member side, it can be opened in the moving direction of the molding die for molding the second component member. This eliminates the need to provide a slide mold for forming the jig engaging recess, thereby reducing the mold cost.

第２の発明は、第１の発明において、
上記第１構成部材における上記第２構成部材が溶着される側には、該第２構成部材に溶着される溶着用突条部と、該溶着用突条部よりも上記第１構成部材の外側へ延出するフランジとが設けられ、
上記フランジに上記治具係合凹部が設けられていることを特徴とする。 According to a second invention, in the first invention,
On the side of the first component member to which the second component member is welded, a welding ridge portion to be welded to the second component member, and an outer side of the first component member than the welding ridge portion. And a flange extending to
The jig engaging recess is provided in the flange.

この構成によれは、溶着時に溶着用突条部の樹脂が溶融して第１構成部材の外側へはみ出るようになった場合に、溶着用突条部の外側にフランジがあるので、樹脂のはみ出し量を少なくすることが可能になる。   According to this configuration, when the resin of the welding ridge portion melts and protrudes to the outside of the first component member at the time of welding, there is a flange on the outside of the welding ridge portion. The amount can be reduced.

第３の発明は、第２の発明において、
上記フランジには、上記治具係合凹部の開放側とは反対側に上記第１構成部材の外面に連なるリブが設けられ、
上記リブの縁部は、上記フランジから離れるほど上記第１構成部材の外面に接近するように形成されていることを特徴とする。 According to a third invention, in the second invention,
The flange is provided with a rib continuous to the outer surface of the first component member on the side opposite to the opening side of the jig engaging recess,
The edge part of the said rib is formed so that it may approach the outer surface of a said 1st structural member, so that it leaves | separates from the said flange.

この構成によれば、オイルストレーナを組み付ける際に、他の部品がリブに接触することが考えられるが、リブの縁部がフランジから離れるほど第１構成部材の外面に接近しているので、他の部品がリブに引っかかりにくくなる。これにより、オイルストレーナの組み付けが容易になる。   According to this configuration, when assembling the oil strainer, it is conceivable that other parts come into contact with the rib. However, as the edge of the rib is closer to the outer surface of the first component member, These parts are less likely to get caught on the ribs. This facilitates the assembly of the oil strainer.

第４の発明は、第１から３のいずれか１つの発明において、
上記第１構成部材における上記第２構成部材が溶着される側には、該第２構成部材に溶着される溶着用突条部が設けられ、
上記溶着用突条部には、上記第１構成部材の内側へ曲がるように形成された曲がり部が設けられ、
上記曲がり部の外側に上記治具係合凹部が設けられていることを特徴とする。 According to a fourth invention, in any one of the first to third inventions,
On the side of the first component member to which the second component member is welded, a welding ridge portion to be welded to the second component member is provided,
The welding protrusion is provided with a bent portion formed to bend inward of the first component member,
The jig engaging recess is provided outside the bent portion.

この構成によれば、曲がり部を形成することで溶着用突条部の幅が十分に確保されるので、溶着強度が高まる。そして、曲がり部が第１構成部材の内側へ曲がっているので、ケーシングの外側へ突出する部分が少なくなり、オイルストレーナを所定の組付位置に組み付ける際の作業がより一層容易になる。   According to this structure, since the width | variety of the welding protrusion part is fully ensured by forming a bending part, welding intensity | strength increases. Since the bent portion is bent to the inside of the first component member, the portion projecting to the outside of the casing is reduced, and the work for assembling the oil strainer at a predetermined assembly position is further facilitated.

第１の発明によれば、樹脂製の第１構成部材と第２構成部材とを互いに溶着してケーシングを構成し、第１構成部材における第２構成部材が溶着される側には、該第２構成部材側に開放するように形成され、溶着時の治具が係合する治具係合凹部を設けたので、治具を使用して第１構成部材と第２構成部材とを確実に溶着できる。また、治具係合凹部はケーシングの外面から突出しないので、オイルストレーナを所定の組付位置に組み付ける作業を容易にすることができる。さらに、治具係合凹部を成形するためのスライド型を設けずに済むので、型費を安価にすることができる。   According to the first invention, the first component member and the second component member made of resin are welded to each other to form a casing, and the second component member of the first component member is welded to the side on which the second component member is welded. 2 Since it is formed so as to open to the component side and a jig engaging recess is provided to engage the jig at the time of welding, the first component member and the second component member can be securely used using the jig. Can be welded. Moreover, since the jig engaging recess does not protrude from the outer surface of the casing, the work of assembling the oil strainer at a predetermined assembling position can be facilitated. Further, since it is not necessary to provide a slide mold for forming the jig engaging recess, the mold cost can be reduced.

第２の発明によれば、第１構成部材に溶着用突条部とフランジとを形成したので、溶着時の樹脂がケーシングの外側へはみ出すのを抑制することができる。   According to the second invention, since the welding protrusion and the flange are formed on the first component member, it is possible to prevent the resin during welding from protruding outside the casing.

第３の発明によれば、フランジにおける治具係合凹部の開放側とは反対側に第１構成部材の外面に連なるリブを形成し、リブの縁部が、フランジから離れるほど第１構成部材の外面に接近するように形成されているので、オイルストレーナを組み付ける際に他の部品がリブに当たったとき引っかかるようになることはなく、オイルストレーナの組み付けを容易に行うことができる。   According to 3rd invention, the rib connected to the outer surface of a 1st structural member is formed in the opposite side to the open | release side of the jig engagement recessed part in a flange, and the 1st structural member is so far as the edge of a rib leaves | separated from a flange. Therefore, when the oil strainer is assembled, it does not get caught when another component hits the rib, and the oil strainer can be easily assembled.

第４の発明によれば、第１構成部材の溶着用突条部に曲がり部を形成し、曲がり部の外側に治具係合凹部を設けたので、溶着用突条部の幅を確保して溶着強度を低下させることなく、ケーシングの外側へ突出する部分を少なくしてオイルストレーナを所定の組付位置に組み付ける際の作業をより一層容易にすることができる。   According to the fourth aspect of the invention, since the bent portion is formed in the welding protrusion of the first component member and the jig engaging recess is provided outside the bent portion, the width of the welding protrusion is ensured. Thus, without lowering the welding strength, it is possible to further facilitate the work when assembling the oil strainer at a predetermined assembling position by reducing the portion protruding to the outside of the casing.

実施形態に係るオイルストレーナの側面図である。It is a side view of the oil strainer concerning an embodiment. オイルストレーナの斜視図である。It is a perspective view of an oil strainer. オイルストレーナの縦断面図である。It is a longitudinal cross-sectional view of an oil strainer. 図１のIV−IV線断面図である。It is the IV-IV sectional view taken on the line of FIG. フィルタが取り付けられた上側部材を下方から見た図である。It is the figure which looked at the upper member with which the filter was attached from the downward direction. 下側部材の平面図である。It is a top view of a lower member. 溶着工程を説明する断面図である。It is sectional drawing explaining a welding process. 実施形態の変形例１に係る図４相当図である。FIG. 5 is a diagram corresponding to FIG. 4 according to Modification 1 of the embodiment. 実施形態の変形例２に係る下側部材の断面図である。It is sectional drawing of the lower member which concerns on the modification 2 of embodiment.

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の側面図である。このオイルストレーナ１は、図示しないが例えば自動車に搭載されるエンジンのオイルパンの内部に配設されてエンジンの内部を循環するオイルを濾過することができるように構成されている。尚、オイルパンの内部には、オイルストレーナ１以外にも、例えばバッフルプレート等が配設されている。   FIG. 1 is a side view of an oil strainer 1 according to an embodiment of the present invention. Although not shown, the oil strainer 1 is arranged inside an oil pan of an engine mounted on an automobile, for example, and configured to filter oil circulating in the engine. In addition to the oil strainer 1, for example, a baffle plate or the like is disposed inside the oil pan.

オイルストレーナ１は、オイルを濾過するためのフィルタ２（図３、図４、図５に示す）と、フィルタ２を収容するケーシング１０とを備えている。ケーシング１０は、全体として細長い筒状に形成されている。ケーシング１０の長手方向一端部（図１における左端部）の上壁部にオイル流出口２１（図３に示す）が形成され、長手方向他端部（図１における右端部）の下壁部にオイル流入口３１（図３に示す）が形成されている。従って、オイルは、ケーシング１０の内部を長手方向他端部から一端部に向かい、かつ、全体として下から上に向かって流れることになる。   The oil strainer 1 includes a filter 2 (shown in FIGS. 3, 4, and 5) for filtering oil and a casing 10 that houses the filter 2. The casing 10 is formed in an elongated cylindrical shape as a whole. An oil outlet 21 (shown in FIG. 3) is formed in the upper wall portion of the longitudinal end of the casing 10 (left end portion in FIG. 1), and the lower wall portion of the other longitudinal end portion (right end portion in FIG. 1). An oil inlet 31 (shown in FIG. 3) is formed. Accordingly, the oil flows in the casing 10 from the other end in the longitudinal direction to the one end and from the bottom to the top as a whole.

ケーシング１０は、上下方向の中間部において分割された上側部材２０と下側部材３０とを組み合わせて構成されている。上側部材２０はケーシング１０の上側を構成するものであり、本発明の第１構成部材である。下側部材３０はケーシング１０の下側を構成するものであり、本発明の第２構成部材である。   The casing 10 is configured by combining an upper member 20 and a lower member 30 that are divided at an intermediate portion in the vertical direction. The upper member 20 constitutes the upper side of the casing 10 and is the first component member of the present invention. The lower member 30 constitutes the lower side of the casing 10 and is the second component member of the present invention.

尚、本実施形態では、ケーシング１が上下方向に分割されている場合について説明するが、これに限らず、例えばケーシング１が水平方向で、かつ、ケーシング１の長手方向に直交する方向に分割されている場合にも本発明を適用することができる。   In addition, although this embodiment demonstrates the case where the casing 1 is divided | segmented into the up-down direction, it is not restricted to this, For example, the casing 1 is divided | segmented into the direction orthogonal to the longitudinal direction of the casing 1 in a horizontal direction. The present invention can also be applied to cases where

上側部材２０及び下側部材３０は、ともに樹脂材を射出成形してなる樹脂製品である。図２に示すように、上側部材２０は、上壁部２２と、上壁部２２の周縁部から下方へ延びる上側周壁部２３とを備えている。上壁部２２は、ケーシング１０の上壁部となる部分であり、従ってケーシング１０の長手方向に長い形状となっている。上壁部２２は、オイルストレーナ１のオイル流れ方向下流側（図１における左側）へ行くほど上に位置するように緩やかに傾斜している。上側周壁部２３は、ケーシング１０の周壁部のうち、上側の約半分を構成している。上側部材２０は、上壁部２２と上側周壁部２３とによって下方に開放する凹形状をなしている。   Both the upper member 20 and the lower member 30 are resin products obtained by injection molding of a resin material. As shown in FIG. 2, the upper member 20 includes an upper wall portion 22 and an upper peripheral wall portion 23 that extends downward from the peripheral edge portion of the upper wall portion 22. The upper wall portion 22 is a portion that becomes the upper wall portion of the casing 10, and thus has a shape that is long in the longitudinal direction of the casing 10. The upper wall portion 22 is gently inclined so as to be located upward as it goes downstream in the oil flow direction of the oil strainer 1 (left side in FIG. 1). The upper peripheral wall portion 23 constitutes about half of the upper side of the peripheral wall portion of the casing 10. The upper member 20 has a concave shape that is opened downward by the upper wall portion 22 and the upper peripheral wall portion 23.

上側部材２０の上壁部２２におけるオイル流れ方向下流端部には、上下方向に貫通するようにオイル流出口２１が形成されている。上壁部２２のオイル流出口２１の周りには、エンジンのシリンダブロック（図示せず）に締結するための第１締結板部２４Ａがオイル流出口２１の径方向に延出するように設けられている。第１締結板部２４Ａには、図示しないボルト等の締結部材が挿通する挿通孔２４ａが上下方向に貫通するように形成されている。また、上壁部２２のオイル流出口２１の周りには、リング状のシール部材Ｓ（図１及び図３に示す）が組み付けられる環状溝２１ａが形成されている。   An oil outlet 21 is formed at the downstream end of the upper wall portion 22 of the upper member 20 in the oil flow direction so as to penetrate in the vertical direction. Around the oil outlet 21 of the upper wall portion 22, a first fastening plate portion 24 </ b> A for fastening to an engine cylinder block (not shown) is provided so as to extend in the radial direction of the oil outlet 21. ing. In the first fastening plate portion 24A, an insertion hole 24a through which a fastening member such as a bolt (not shown) is inserted is formed so as to penetrate in the vertical direction. In addition, an annular groove 21a is formed around the oil outlet 21 of the upper wall portion 22 in which a ring-shaped seal member S (shown in FIGS. 1 and 3) is assembled.

図１に示すように上側部材２０の上壁部２２におけるオイル流れ方向上流端部には、エンジンのシリンダブロックに締結するための第２締結板部２４Ｂが設けられている。第２締結板部２４Ｂは、ケーシング１の端部から突出しており、突出方向先端部には、ブッシュ２４ｂが挿入されていて、該ブッシュ２４ｂには図示しないボルト等の締結部材が挿通するようになっている。   As shown in FIG. 1, a second fastening plate portion 24 </ b> B for fastening to an engine cylinder block is provided at an upstream end portion in the oil flow direction of the upper wall portion 22 of the upper member 20. The second fastening plate portion 24B protrudes from the end portion of the casing 1, and a bush 24b is inserted into the front end portion in the protruding direction, and a fastening member such as a bolt (not shown) is inserted into the bush 24b. It has become.

また、図３に示すように、上側部材２０の上側周壁部２３の内面には、フィルタ２の枠部２ａが嵌まる段部２３ａが上側周壁部２３の全周に亘って形成されている。尚、フィルタ２は、下側部材３０に収容するように構成することもでき、この場合、例えば下側部材３０の下側周壁部３３の内面にフィルタ２の枠部２ａが嵌まる段部を形成すればよい。   As shown in FIG. 3, a step portion 23 a into which the frame portion 2 a of the filter 2 is fitted is formed on the inner surface of the upper peripheral wall portion 23 of the upper member 20 over the entire circumference of the upper peripheral wall portion 23. The filter 2 can also be configured to be accommodated in the lower member 30. In this case, for example, a step portion in which the frame portion 2a of the filter 2 is fitted on the inner surface of the lower peripheral wall portion 33 of the lower member 30 is provided. What is necessary is just to form.

図３〜図５に示すように、フィルタ２は、上側部材２０の開放側の端部の形状と略同形状に成形された細長い枠部２ａと、枠部２ａの内部に設けられた板状の網目部２ｂと、網目部２ｂを補強するための補強部２ｃとを有している。枠部２ａは略全体が上側部材２０の段部２３ａに嵌合するようになっている。段部２３ａに嵌合した状態の枠部２ａの下端部は、下側部材３０の上端部に当接して下方から支持されるようになっている。これにより、フィルタ２が位置決めされる。   As shown in FIG. 3 to FIG. 5, the filter 2 has an elongated frame portion 2 a formed in substantially the same shape as the shape of the open end of the upper member 20, and a plate shape provided inside the frame portion 2 a. The mesh part 2b and the reinforcing part 2c for reinforcing the mesh part 2b are provided. The frame portion 2a is substantially entirely fitted to the step portion 23a of the upper member 20. The lower end portion of the frame portion 2a fitted to the stepped portion 23a comes into contact with the upper end portion of the lower member 30 and is supported from below. Thereby, the filter 2 is positioned.

網目部２ｂは枠部２ａと共に樹脂材を成形してなるものである。網目部２ｂには、オイルを濾過することが可能な細孔が多数形成されている。補強部２ｃは、網目部２ｂの下面から下方へ突出する板状に形成されており、網目部２ｂ及び枠部２ａと一体成形されている。尚、フィルタ２の補強部２ｃは１つであってもよいし、複数設けてもよい。   The mesh part 2b is formed by molding a resin material together with the frame part 2a. The mesh part 2b has a large number of pores through which oil can be filtered. The reinforcing portion 2c is formed in a plate shape that protrudes downward from the lower surface of the mesh portion 2b, and is integrally formed with the mesh portion 2b and the frame portion 2a. In addition, the reinforcement part 2c of the filter 2 may be one, and may be provided with two or more.

上側部材２０の下側（開放側）は下側部材３０に溶着される側である。この上側部材２０の下側の端部には、下側部材３０に溶着される上側溶着用突条部２５が下方へ突出するように形成されている。上側溶着用突条部２５は、上側部材２０の開放部分を囲むように延びており、後述する熱板によって溶融するまで加熱されて溶着される部位である。   The lower side (open side) of the upper member 20 is a side welded to the lower member 30. On the lower end of the upper member 20, an upper welding protrusion 25 that is welded to the lower member 30 is formed so as to protrude downward. The upper welding protrusion 25 extends so as to surround the open portion of the upper member 20, and is a portion that is heated and welded until it is melted by a hot plate described later.

また、上側部材２０の下側の端部には、上側部材２０の外側へ延出する上側フランジ２６が形成されている。上側フランジ２６には、下側部材３０側（下側）に開放するように形成された治具係合上側凹部２６ａが設けられている。治具係合上側凹部２６ａは、後述するが上側部材２０と下側部材３０とを溶着する際に溶着用の治具５０の爪５３ａを引っ掛けて係合させるための凹部であり、この実施形態では上側フランジ２６の一部を上方へ屈曲させることによって形成されている。治具係合上側凹部２６ａは、上側フランジ２６の周方向に互いに間隔をあけて複数設けられている。   Further, an upper flange 26 that extends to the outside of the upper member 20 is formed at the lower end of the upper member 20. The upper flange 26 is provided with a jig engagement upper recess 26a formed so as to open to the lower member 30 side (lower side). The jig engaging upper recess 26a is a recess for hooking and engaging the claws 53a of the welding jig 50 when the upper member 20 and the lower member 30 are welded as will be described later. In the form, it is formed by bending a part of the upper flange 26 upward. A plurality of jig engaging upper concave portions 26 a are provided at intervals in the circumferential direction of the upper flange 26.

図４に示すように、下側部材３０は、下壁部３２と、下壁部３２の周縁部から上方へ延びる下側周壁部３３とを備えている。下壁部３２は、ケーシング１０の下壁部となる部分であり、従ってケーシング１０の長手方向に長い形状となっている。下壁部３２は、オイルストレーナ１のオイル流れ方向下流側（図１における左側）へ行くほど下に位置するように緩やかに傾斜している。下壁部３２のオイル流れ方向上流側には、下方へ突出する筒部３３ａが形成されている。この筒部３３ａの下端部にオイル流入口３１が開口している。オイル流入口３１は、オイルパンの底面近傍に位置するように配置される。   As shown in FIG. 4, the lower member 30 includes a lower wall portion 32 and a lower peripheral wall portion 33 that extends upward from the peripheral edge portion of the lower wall portion 32. The lower wall portion 32 is a portion that becomes the lower wall portion of the casing 10, and thus has a shape that is long in the longitudinal direction of the casing 10. The lower wall portion 32 is gently inclined so as to be positioned downward as it goes to the downstream side in the oil flow direction of the oil strainer 1 (left side in FIG. 1). A cylindrical portion 33 a that protrudes downward is formed on the upstream side of the lower wall portion 32 in the oil flow direction. An oil inflow port 31 is open at the lower end of the cylindrical portion 33a. The oil inflow port 31 is disposed so as to be positioned near the bottom surface of the oil pan.

下側周壁部３３は、ケーシング１０の周壁部のうち、下側の約半分を構成している。下側部材３０は、下壁部３２と下側周壁部３３とによって上方に開放する凹形状をなしている。   The lower peripheral wall portion 33 constitutes about a lower half of the peripheral wall portion of the casing 10. The lower member 30 has a concave shape that is opened upward by the lower wall portion 32 and the lower peripheral wall portion 33.

また、下側部材３０の上側の端部には、下側部材３０の外側へ延出する下側フランジ３６が形成されている。下側フランジ３６には、上側部材２０側（上側）に開放するように形成された治具係合下側凹部３６ａが設けられている。治具係合下側凹部３６ａは、後述する溶着用の治具６０の爪６３ａを引っ掛けて係合させるための凹部であり、この実施形態では下側フランジ３６の一部を上方へ屈曲させることによって形成されている。治具係合下側凹部３６ａは、該治具係合下側凹部３６ａの開放部分と、上記上側部材２０の治具係合上側凹部２６ａの開放部分とが対向するように、下側フランジ３６の周方向に互いに間隔をあけて複数設けられている。   Further, a lower flange 36 extending to the outside of the lower member 30 is formed at the upper end of the lower member 30. The lower flange 36 is provided with a jig engagement lower recess 36a formed so as to open to the upper member 20 side (upper side). The jig engagement lower recess 36a is a recess for hooking and engaging a claw 63a of a welding jig 60 described later, and in this embodiment, a part of the lower flange 36 is bent upward. Is formed by. The jig engagement lower recess 36a has a lower flange so that the open portion of the jig engagement lower recess 36a and the open portion of the jig engagement upper recess 26a of the upper member 20 face each other. A plurality of 36 are provided at intervals in the circumferential direction.

次に、上記のように構成されたオイルストレーナ１を組み立てる場合について説明する。オイルストレーナ１を組み立てる際には、図７に示すような下側治具５０及び上側治具６０を使用する。まず、下側治具５０の構造について説明する。下側治具５０は、下側基台５１と、下側基台５１の上部に固定された下側保持型５２とを有している。下側保持型５２の上面は、オイルストレーナ１の上側部材２０の外面に一致する形状に成形されており、上側部材２０は下側保持型５２の上面に載置された状態で保持される。このとき、上側部材２０の上側溶着用突条部２５が下側保持型５２の上面から上方へ突出するようになっている。   Next, the case where the oil strainer 1 configured as described above is assembled will be described. When assembling the oil strainer 1, a lower jig 50 and an upper jig 60 as shown in FIG. 7 are used. First, the structure of the lower jig 50 will be described. The lower jig 50 has a lower base 51 and a lower holding mold 52 fixed to the upper part of the lower base 51. The upper surface of the lower holding mold 52 is shaped to match the outer surface of the upper member 20 of the oil strainer 1, and the upper member 20 is held in a state of being placed on the upper surface of the lower holding mold 52. At this time, the upper welding protrusion 25 of the upper member 20 protrudes upward from the upper surface of the lower holding mold 52.

下側保持型５２の側部には、上下方向に延びる複数の下側アーム５３が略水平な下側支軸５４を介して回動可能に連結されている。下側アーム５３は、上側部材２０の治具係合上側凹部２６ａの形成位置に対応するように配置されている。下側アーム５３の下側支軸５４よりも上側が上側部材２０に接離するように動くようになっている。下側アーム５３は、下側保持型５２に設けられた流体圧シリンダ装置５５によって駆動される。   A plurality of lower arms 53 extending in the vertical direction are connected to the side portion of the lower holding mold 52 through a substantially horizontal lower support shaft 54 so as to be rotatable. The lower arm 53 is disposed so as to correspond to the formation position of the jig engagement upper recess 26 a of the upper member 20. The upper side of the lower support shaft 54 of the lower arm 53 moves so as to be in contact with and separated from the upper member 20. The lower arm 53 is driven by a fluid pressure cylinder device 55 provided in the lower holding mold 52.

下側アーム５３の上端部には、上側部材２０の治具係合上側凹部２６ａに係合する下側爪５３ａが形成されている。下側爪５３ａは、下側アーム５３の上端部が上側部材２０に接近する方向に回動した状態で治具係合上側凹部２６ａの内部に入り込んで該治具係合上側凹部２６ａの内面に引っ掛かって係合した状態となり、これにより、上側部材２０の上側フランジ２６を下側保持型５２の上面に押し付けることができるようになっている。   A lower claw 53 a that engages with the jig engagement upper recess 26 a of the upper member 20 is formed at the upper end of the lower arm 53. The lower claw 53a enters the jig engaging upper concave portion 26a in a state where the upper end portion of the lower arm 53 rotates in a direction approaching the upper member 20, and enters the jig engaging upper concave portion 26a. As a result, the upper flange 26 of the upper member 20 can be pressed against the upper surface of the lower holding mold 52.

上側治具６０は、下側治具５０と同様に構成されている。すなわち、上側治具６０は、上側基台６１と、上側基台６１の下部に固定された上側保持型６２とを有している。上側保持型６２の下面は、オイルストレーナ１の下側部材３０の外面に一致する形状に成形されており、下側部材３０は上側保持型６２の下面に接触した状態で保持される。このとき、下側部材３０の下側溶着用突条部３５が上側保持型６２の下面から下方へ突出するようになっている。   The upper jig 60 is configured in the same manner as the lower jig 50. That is, the upper jig 60 has an upper base 61 and an upper holding die 62 fixed to the lower part of the upper base 61. The lower surface of the upper holding die 62 is shaped to match the outer surface of the lower member 30 of the oil strainer 1, and the lower member 30 is held in contact with the lower surface of the upper holding die 62. At this time, the lower welding protrusion 35 of the lower member 30 protrudes downward from the lower surface of the upper holding mold 62.

上側保持型６２の側部には、上下方向に延びる複数の上側アーム６３が略水平な上側支軸６４を介して回動可能に連結されている。上側アーム６３の上側支軸６４よりも下側が下側部材３０に接離するように動くようになっている。上側アーム６３は、上側保持型６２に設けられた流体圧シリンダ装置６５によって駆動される。   A plurality of upper arms 63 extending in the vertical direction are connected to the side portion of the upper holding mold 62 through a substantially horizontal upper support shaft 64 so as to be rotatable. The lower arm of the upper arm 63 is moved so that the lower side of the upper arm 64 contacts and separates from the lower member 30. The upper arm 63 is driven by a fluid pressure cylinder device 65 provided in the upper holding mold 62.

上側アーム６３の下端部には、下側部材３０の治具係合下側凹部３６ａに係合する上側爪６３ａが形成されている。上側爪６３ａは、上側アーム６３の下端部が下側部材３０に接近する方向に回動した状態で治具係合下側凹部３６ａの内部に入り込んで該治具係合下側凹部３６ａの内面に引っ掛かって係合した状態となり、これにより、下側部材３０の下側フランジ３６を上側保持型６２の下面に押し付けることができるようになっている。   An upper claw 63 a that engages with the jig engagement lower recess 36 a of the lower member 30 is formed at the lower end of the upper arm 63. The upper claw 63a enters the inside of the jig engagement lower recess 36a in a state where the lower end portion of the upper arm 63 is rotated in the direction approaching the lower member 30, and the inner surface of the jig engagement lower recess 36a. Thus, the lower flange 36 of the lower member 30 can be pressed against the lower surface of the upper holding mold 62.

オイルストレーナ１を製造する際には、はじめに、上側部材２０を下側治具５０に保持し、下側部材３０を上側治具６０に保持する。上側部材２０を下側治具５０に保持する際には、上側部材２０を下側治具５０の下側保持型５２の上面に載置した後、下側アーム５３の爪５３ａが上側部材２０に接近するように、該下側アーム５３をシリンダ装置５５によって回動させる。これにより、下側アーム５３の爪５３ａが上側部材２０の治具係合上側凹部２６ａに係合する。すると、上側部材２０の上側フランジ２６が下側保持型５２に押し付けられるので、上側部材２０に成形時の反り等が発生していたとしても、上側部材２０の形状を下側保持型５２によって矯正して所期の形状とすることができる。   When manufacturing the oil strainer 1, first, the upper member 20 is held by the lower jig 50 and the lower member 30 is held by the upper jig 60. When holding the upper member 20 on the lower jig 50, the upper member 20 is placed on the upper surface of the lower holding mold 52 of the lower jig 50, and then the claw 53 a of the lower arm 53 is moved to the upper member 20. The lower arm 53 is rotated by the cylinder device 55 so as to approach the position. Thereby, the claw 53a of the lower arm 53 is engaged with the jig engaging upper concave portion 26a of the upper member 20. Then, since the upper flange 26 of the upper member 20 is pressed against the lower holding die 52, the shape of the upper member 20 is corrected by the lower holding die 52 even if the upper member 20 is warped during molding. Thus, the desired shape can be obtained.

また、下側部材３０を上側治具６０に保持する際には、下側部材３０を上側治具６０の上側保持型６２の下面に接触させた後、上側アーム６３の爪６３ａが下側部材３０に接近するように、該上側アーム６３をシリンダ装置６５によって回動させる。これにより、上側アーム６３の爪６３ａが下側部材３０の治具係合下側凹部３６ａに係合する。すると、下側部材３０の下側フランジ３６が上側保持型６２に押し付けられるので、下側部材３０に成形時の反り等が発生していたとしても、下側部材３０の形状を上側保持型６２によって矯正して所期の形状とすることができる。   Further, when the lower member 30 is held by the upper jig 60, after the lower member 30 is brought into contact with the lower surface of the upper holding mold 62 of the upper jig 60, the claw 63 a of the upper arm 63 is moved to the lower member. The upper arm 63 is rotated by the cylinder device 65 so as to approach 30. As a result, the claw 63a of the upper arm 63 engages with the jig engaging lower recess 36a of the lower member 30. Then, since the lower flange 36 of the lower member 30 is pressed against the upper holding die 62, the shape of the lower member 30 is changed to the upper holding die 62 even if the lower member 30 is warped during molding. Can be corrected to the desired shape.

その後、上側部材２０と下側部材３０との間に、樹脂材の溶融温度以上に加熱した熱板（図示せず）を挿入する。熱板は、上側部材２０の上側溶着用突条部２５及び下側部材３０の下側溶着用突条部３５と対向しているので、上側溶着用突条部２５及び下側部材３０の下側溶着用突条部３５が熱板によって溶融温度以上に加熱される。   Thereafter, a hot plate (not shown) heated above the melting temperature of the resin material is inserted between the upper member 20 and the lower member 30. Since the hot plate is opposed to the upper welding protrusion 25 of the upper member 20 and the lower welding protrusion 35 of the lower member 30, the hot plate is below the upper welding protrusion 25 and the lower member 30. The side welding protrusion 35 is heated to the melting temperature or higher by the hot plate.

しかる後、熱板を上側部材２０と下側部材３０との間から抜く。そして、上側治具６０を下降させて上側部材２０の上側溶着用突条部２５と下側部材３０の下側溶着用突条部３５とを接触させ、その状態でしばらく保持する。これにより、上側溶着用突条部２５と下側溶着用突条部３５とが全周に亘って溶着される。   Thereafter, the hot plate is removed from between the upper member 20 and the lower member 30. And the upper side jig | tool 60 is lowered | hung, the upper welding protrusion 25 of the upper member 20 and the lower welding protrusion 35 of the lower member 30 are contacted, and it hold | maintains in that state for a while. Thereby, the upper welding protrusion 25 and the lower welding protrusion 35 are welded over the entire circumference.

この溶着時には溶着用突条部２５、３５の樹脂が溶融してケーシング１の外側へはみ出るようになることがある。このようになった場合に、溶着用突条部２５、３５の外側にフランジ２６、３６があるので、樹脂がフランジ２６、３６の間に収容され、ケーシング１の外にまではみ出してしまう量を少なくすることが可能になる。   At the time of this welding, the resin of the welding protrusions 25 and 35 may melt and protrude outside the casing 1. In this case, since the flanges 26 and 36 are outside the welding protrusions 25 and 35, the amount of the resin that is accommodated between the flanges 26 and 36 and protrudes outside the casing 1. It becomes possible to reduce.

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、上側部材２０に治具係合上側凹部２６ａを形成し、下側部材３０に治具係合下側凹部３６ａを形成したので、上側部材２０及び下側部材３０を溶着用の治具５０、６０にセットする際に、治具５０、６０の爪５３ａ、６３ａを治具係合上側凹部２６ａ及び治具係合下側凹部３６ａに係合させることで、上側部材２０及び下側部材３０を治具５０、６０に確実にセットできる。これにより、上側部材２０や下側部材３０に樹脂成形時の反り等が発生していても治具５０、６０によって矯正できるので、上側部材２０と下側部材３０とを確実に溶着できる。   As described above, according to the oil strainer 1 according to this embodiment, the jig engaging upper concave portion 26a is formed in the upper member 20, and the jig engaging lower concave portion 36a is formed in the lower member 30. Therefore, when the upper member 20 and the lower member 30 are set on the welding jigs 50 and 60, the claws 53a and 63a of the jigs 50 and 60 are placed under the jig engagement upper recess 26a and the jig engagement. By engaging with the side recess 36 a, the upper member 20 and the lower member 30 can be reliably set on the jigs 50 and 60. Thereby, even if the upper member 20 and the lower member 30 are warped during resin molding, the jigs 50 and 60 can correct the upper member 20 and the lower member 30, so that the upper member 20 and the lower member 30 can be reliably welded.

また、治具５０、６０の爪５３ａ、６３ａが係合する部位は治具係合上側凹部２６ａ及び治具係合下側凹部３６ａであるため、ケーシング１０の外面から突出する突部を設けた場合のようにオイルパン内の他の部品に当たることはなく、オイルストレーナ１を所定の組付位置に組み付ける作業が容易に行えるようになる。   Further, since the portions where the claws 53a and 63a of the jigs 50 and 60 are engaged are the jig engaging upper concave portion 26a and the jig engaging lower concave portion 36a, a protrusion protruding from the outer surface of the casing 10 is provided. As is the case with the oil pan, it does not hit other parts in the oil pan, and the operation of assembling the oil strainer 1 at a predetermined assembling position can be easily performed.

さらに、上側部材２０の治具係合上側凹部２６ａが下側に開放する形状であるため、上側部材２０を成形する際の成形型の移動方向に治具係合上側凹部２６ａを開放させることができる。これにより、治具係合上側凹部２６ａを成形するためのスライド型を設けずに済むので、型費が安価になる。治具係合下側凹部３６ａも同様にスライド型を設けずに成形できる。   Furthermore, since the jig engaging upper concave portion 26a of the upper member 20 has a shape that opens downward, the jig engaging upper concave portion 26a is opened in the moving direction of the mold when the upper member 20 is molded. be able to. This eliminates the need to provide a slide mold for molding the jig engaging upper recess 26a, thereby reducing the mold cost. Similarly, the jig engaging lower concave portion 36a can be formed without providing a slide mold.

上記実施形態では、上側部材２０に治具係合上側凹部２６ａを設け、下側部材３０に治具係合下側凹部３６ａを設けているが、これに限らず、上側部材２０には治具係合上側凹部２６ａを設けなくてもよい。また、下側部材３０には治具係合下側凹部３６ａを設けなくてもよい。   In the above embodiment, the upper member 20 is provided with the jig engaging upper concave portion 26a, and the lower member 30 is provided with the jig engaging lower concave portion 36a. The tool engagement upper recess 26a may not be provided. Further, the lower member 30 may not be provided with the jig engaging lower concave portion 36a.

また、図８に示す変形例１のように、下側部材３０の下側フランジ３６にリブ３６ｅを設けてもよい。リブ３６ｅは、下側フランジ３６における治具係合下側凹部３６ａの形成部位に配置され、治具係合下側凹部３６ａの開放側とは反対側（下側）に突出して下側部材３０の外面に連なっている。リブ３６ｅは、１つの治具係合下側凹部３６ａに対して２つ設けられており、これら２つのリブ３６ｅは下側フランジ３６の周方向に互いに間隔をあけて配置されている。また、リブ３６ｅの縁部は、下側フランジ３６から離れて下側へ行くほど下側部材３０の外面に接近するように形成されている。   Further, as in Modification 1 shown in FIG. 8, a rib 36 e may be provided on the lower flange 36 of the lower member 30. The rib 36e is disposed at a portion where the jig engagement lower recess 36a is formed in the lower flange 36, and protrudes to the opposite side (lower side) of the jig engagement lower recess 36a to the lower member 30. It is connected to the outside. Two ribs 36e are provided for one jig engaging lower recess 36a, and these two ribs 36e are arranged at intervals in the circumferential direction of the lower flange 36. Further, the edge of the rib 36e is formed so as to approach the outer surface of the lower member 30 as it goes away from the lower flange 36.

例えば、オイルストレーナ１をエンジンやオイルパン等に組み付ける際に、他の部品がリブ３６ｅに接触することが考えられるが、リブ３６ｅの縁部が下側フランジ３６から離れるほど下側部材３０の外面に接近しているので、他の部品がリブ３６ｅに引っかかりにくくなる。これにより、オイルストレーナ１の組み付けが容易になる。   For example, when the oil strainer 1 is assembled to an engine, an oil pan, or the like, other parts may come into contact with the rib 36e, but the outer surface of the lower member 30 increases as the edge of the rib 36e moves away from the lower flange 36. Therefore, it is difficult for other parts to be caught by the rib 36e. Thereby, the assembly | attachment of the oil strainer 1 becomes easy.

また、図９に示す変形例２のように、下側部材３０の内面にフィルタ２の枠部２ａが嵌合する段部３３ａを形成し、下側部材３０のフランジを省略してもよい。この変形例２では、下側溶着用突条部３５の一部に、下側部材３０の内側へ曲がるように形成された曲がり部３５ｆが形成されている。曲がり部３５ｆは、下側溶着用突条部３５の周方向に互いに間隔をあけて複数設けられている。また、この曲がり部３５ｆの形成に対応して、フィルタ２の枠部２ａには、枠部２ａの内側へ窪む窪み部２ｄが形成されている。窪み部２ｄの外方に曲がり部３５ｆが位置するようになっており、曲がり部３５ｆが窪み部２ｄに嵌合する。これにより、フィルタ２の位置ずれが抑制される。また、下側溶着用突条部３５の曲がり部３５ｆの外側には、治具係合下側凹部３５ｇが設けられている。   Further, as in Modification 2 shown in FIG. 9, a step portion 33 a into which the frame portion 2 a of the filter 2 is fitted may be formed on the inner surface of the lower member 30, and the flange of the lower member 30 may be omitted. In the second modification, a bent portion 35 f formed to be bent inward of the lower member 30 is formed in a part of the lower welding protrusion 35. A plurality of the bent portions 35f are provided at intervals in the circumferential direction of the lower welding protrusion 35. Corresponding to the formation of the bent portion 35f, the frame portion 2a of the filter 2 is formed with a hollow portion 2d that is recessed toward the inside of the frame portion 2a. The bent portion 35f is positioned outside the hollow portion 2d, and the bent portion 35f is fitted into the hollow portion 2d. Thereby, the position shift of the filter 2 is suppressed. Further, a jig engaging lower concave portion 35g is provided outside the bent portion 35f of the lower welding protrusion 35.

変形例２では、下側溶着用突条部３５に曲がり部３５ｆを形成することで下側溶着用突条部３５の幅が十分に確保されるので、上側部材２０との溶着強度が高まる。そして、曲がり部３５ｆが下側部材３０の内側へ曲がっているので、ケーシング１の外側へ突出する部分が少なくなり、オイルストレーナ１を所定の組付位置に組み付ける際の作業がより一層容易になる。   In the modification 2, since the width | variety of the lower welding protrusion 35 is fully ensured by forming the bending part 35f in the lower welding protrusion 35, the welding strength with the upper member 20 increases. Since the bent portion 35f is bent to the inside of the lower member 30, the portion protruding to the outside of the casing 1 is reduced, and the work for assembling the oil strainer 1 at a predetermined assembly position is further facilitated. .

尚、変形例２では、下側部材３０に曲がり部３５ｆを形成した場合について説明したが、これに限らず、図示しないが上側部材２０に同様な曲がり部を形成してもよい。   In the second modification, the case where the bent portion 35f is formed in the lower member 30 has been described.

上述の実施形態はあらゆる点で単なる例示に過ぎず、限定的に解釈してはならない。さらに、特許請求の範囲の均等範囲に属する変形や変更は、全て本発明の範囲内のものである。   The above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

以上説明したように、本発明に係るオイルストレーナは、例えば自動車のエンジンを循環するオイルを濾過するのに使用することができる。   As described above, the oil strainer according to the present invention can be used, for example, to filter oil circulating in an automobile engine.

１ オイルストレーナ
２ フィルタ
１０ ケーシング
２０ 上側部材（第１構成部材）
２１ オイル流出口
２５ 上側溶着用突条部
２６ 上側フランジ
２６ａ 治具係合上側凹部
３０ 下側部材（第２構成部材）
３１ オイル流入口
３５ 下側溶着用突条部
３５ｆ 曲がり部
３５ｇ 治具係合下側凹部
３６ 下側フランジ
３６ａ 治具係合下側凹部（治具係合凹部） DESCRIPTION OF SYMBOLS 1 Oil strainer 2 Filter 10 Casing 20 Upper member (1st component)
21 Oil outlet 25 Upper welding protrusion 26 Upper flange 26a Jig engagement upper recess 30 Lower member (second component)
31 Oil inlet 35 Lower welding protrusion 35f Bending portion 35g Jig engagement lower recess 36 Lower flange 36a Jig engagement lower recess (jig engagement recess)

Claims (4)

オイルを濾過するためのフィルタ（２）と、
上記フィルタ（２）を収容するケーシング（１０）とを備え、
上記ケーシング（１０）に形成されたオイル流入口（３１）から該ケーシング（１０）の内部に流入したオイルを上記フィルタ（２）によって濾過して上記ケーシング（１０）に形成されたオイル流出口（２１）から流出させるように構成されたオイルストレーナ（１）において、
上記ケーシング（１０）は、樹脂製の第１構成部材（３０）と第２構成部材（２０）とが互いに溶着されてなるものであり、
上記第１構成部材（３０）における上記第２構成部材（２０）が溶着される側には、該第２構成部材（２０）側に開放するように形成されて溶着時の治具が係合する治具係合凹部（３６ａ）が設けられていることを特徴とするオイルストレーナ（１）。 A filter (2) for filtering oil;
A casing (10) for housing the filter (2),
Oil flowing into the casing (10) from the oil inlet (31) formed in the casing (10) is filtered by the filter (2), and the oil outlet (formed in the casing (10) ( 21) In an oil strainer (1) configured to flow out of
The casing (10) is formed by welding a first component member (30) and a second component member (20) made of resin,
On the side of the first component member (30) to which the second component member (20) is welded, a jig for welding is formed so as to open to the second component member (20) side. An oil strainer (1) characterized in that a jig engaging recess (36a) is provided. 請求項１に記載のオイルストレーナ（１）において、
上記第１構成部材（３０）における上記第２構成部材（２０）が溶着される側には、該第２構成部材（２０）に溶着される溶着用突条部（３５）と、該溶着用突条部（３５）よりも上記第１構成部材（３０）の外側へ延出するフランジ（３６）とが設けられ、
上記フランジ（３６）に上記治具係合凹部（３６ａ）が設けられていることを特徴とするオイルストレーナ（１）。 In the oil strainer (1) according to claim 1,
On the side of the first component member (30) where the second component member (20) is welded, a welding protrusion (35) welded to the second component member (20), and the welding A flange (36) extending from the protrusion (35) to the outside of the first component member (30);
The oil strainer (1), wherein the flange (36) is provided with the jig engaging recess (36a). 請求項２に記載のオイルストレーナ（１）において、
上記フランジ（３６）には、上記治具係合凹部（３６ａ）の開放側とは反対側に上記第１構成部材（３０）の外面に連なるリブ（３６ｅ）が設けられ、
上記リブ（３６ｅ）の縁部は、上記フランジ（３６）から離れるほど上記第１構成部材（３０）の外面に接近するように形成されていることを特徴とするオイルストレーナ（１）。 In the oil strainer (1) according to claim 2,
The flange (36) is provided with a rib (36e) connected to the outer surface of the first component member (30) on the side opposite to the open side of the jig engaging recess (36a).
The oil strainer (1) is characterized in that the edge of the rib (36e) is formed so as to approach the outer surface of the first component (30) as the distance from the flange (36) increases. 請求項１から３のいずれか１つに記載のオイルストレーナ（１）において、
上記第１構成部材（３０）における上記第２構成部材（２０）が溶着される側には、該第２構成部材（２０）に溶着される溶着用突条部（３５）が設けられ、
上記溶着用突条部（３５）には、上記第１構成部材（３０）の内側へ曲がるように形成された曲がり部（３５ｆ）が設けられ、
上記曲がり部（３５ｆ）の外側に上記治具係合凹部（３５ｇ）が設けられていることを特徴とするオイルストレーナ（１）。 In the oil strainer (1) according to any one of claims 1 to 3,
A welding protrusion (35) welded to the second component member (20) is provided on the side of the first component member (30) where the second component member (20) is welded.
The welding protrusion (35) is provided with a bent portion (35f) formed so as to bend inward of the first component member (30).
The oil strainer (1), wherein the jig engaging recess (35g) is provided outside the bent portion (35f).
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