JP5233695B2 - Fluid filter for automatic transmission and method for manufacturing the same - Google Patents

Fluid filter for automatic transmission and method for manufacturing the same Download PDF

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JP5233695B2
JP5233695B2 JP2009010386A JP2009010386A JP5233695B2 JP 5233695 B2 JP5233695 B2 JP 5233695B2 JP 2009010386 A JP2009010386 A JP 2009010386A JP 2009010386 A JP2009010386 A JP 2009010386A JP 5233695 B2 JP5233695 B2 JP 5233695B2
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case member
side plate
filter
fold
automatic transmission
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JP2010169130A (en
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晴昭 坂田
正広 富田
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Toyota Boshoku 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
    • B29C66/5432—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 joining hollow covers and hollow bottoms to open ends of container bodies
    • 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
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0609—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding characterised by the movement of the parts to be joined
    • B29C65/0618—Linear
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12443—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue having the tongue substantially in the middle
    • 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
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • 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
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/14—Filters

Description

本発明は、自動変速機用流体フィルタ及びその製造方法に関し、さらに詳しくは、フィルタの外観寸法に対する濾材の濾過面積を大きくしてフィルタの小型化を図ることができると共に、樹脂使用量を低減することができる自動変速機用流体フィルタ及びその製造方法に関する。   The present invention relates to a fluid filter for an automatic transmission and a method for manufacturing the same, and more specifically, the filter area of the filter medium can be increased with respect to the external dimensions of the filter to reduce the size of the filter and reduce the amount of resin used. The present invention relates to a fluid filter for an automatic transmission and a method for manufacturing the same.

従来の自動変速機用流体フィルタとして、樹脂製の上側ケース部材と、この上側ケース部材との間で濾過室を形成する樹脂製の下側ケース部材と、この濾過室内に配置されるひだ折り状の濾材及び該濾材の縁端を保持する樹脂製の保持枠を有するフィルタエレメントと、を備えてなるオイルフィルタが一般に知られている（例えば、特許文献１及び２参照）。
上記オイルフィルタでは、例えば、図１３に示すように、各ケース部材１０２，１０３のそれぞれの周側壁１０２ｂ，１０３ｂには外側方に突出する溶着部１２０ａ，１２０ｂが設けられており、保持枠１１８は、濾材１０９の縁端を保持する側板１１０と、この側板１１０の上下方向の中央部から外側方に突出する溶着部１２１と、を有して構成されている。そして、各ケース部材１０２，１０３の溶着部１２０ａ，１２０ｂと保持枠１１８の溶着部１２１とを振動溶着させて、各ケース部材１０２，１０３及び保持枠１１８（即ち、フィルタエレメント１０５）が一体化されたオイルフィルタ１０１が得られることとなる。 As a conventional fluid filter for an automatic transmission, an upper case member made of resin, a lower case member made of resin that forms a filtration chamber between the upper case member, and a fold-fold shape disposed in the filtration chamber An oil filter comprising a filter element having a filter element having a filter frame having a resin and a holding frame for holding an edge of the filter medium is generally known (see, for example, Patent Documents 1 and 2).
In the oil filter, for example, as shown in FIG. 13, welded portions 120a and 120b projecting outward are provided on the peripheral side walls 102b and 103b of the case members 102 and 103, respectively. The side plate 110 that holds the edge of the filter medium 109 and the welded portion 121 that protrudes outward from the center of the side plate 110 in the vertical direction are configured. The case members 102 and 103 and the holding frame 118 (that is, the filter element 105) are integrated by vibration welding the welded portions 120a and 120b of the case members 102 and 103 and the welded portion 121 of the holding frame 118. The oil filter 101 is obtained.

しかし、上記従来のオイルフィルタ１０１では、フィルタエレメント１０５を構成する側板１１０は、各ケース部材１０２，１０３の内壁から隙間をもって濾過室１０４内に配置されており、側板１１０及び隙間を含む濾過室１０４内の空間Ｓでは、濾材１０９による濾過機能を発揮させることができない。したがって、フィルタ全体の外観寸法に対して濾材の濾過面積が比較的小さなものとなっている。また、各ケース部材１０２，１０３及び保持枠１１８には外側方に突出する溶着部１２０ａ，１２０ｂ，１２１が形成されているので、やはりフィルタ全体の外観寸法に対して濾材の濾過面積が比較的小さなものとなっており、また樹脂使用量も比較的多いものとなっている。   However, in the conventional oil filter 101, the side plate 110 constituting the filter element 105 is disposed in the filtration chamber 104 with a gap from the inner wall of each case member 102, 103, and the filtration chamber 104 including the side plate 110 and the gap. In the inner space S, the filtering function by the filter medium 109 cannot be exhibited. Therefore, the filtration area of the filter medium is relatively small with respect to the overall dimensions of the filter. Further, since the case members 102 and 103 and the holding frame 118 are formed with welded portions 120a, 120b, and 121 that protrude outward, the filtration area of the filter medium is also relatively small with respect to the overall external dimensions of the filter. In addition, the amount of resin used is relatively large.

特開２００２−２７３１１６号公報JP 2002-273116 A 特開２００６−３１６９０２号公報JP 2006-316902 A

本発明は、上記現状に鑑みてなされたものであり、フィルタの外観寸法に対する濾材の濾過面積を大きくしてフィルタの小型化を図ることができると共に、樹脂使用量を低減することができる自動変速機用流体フィルタ及びその製造方法を提供することを目的とする。   The present invention has been made in view of the above-described situation, and an automatic transmission capable of reducing the size of the filter by increasing the filtration area of the filter medium with respect to the external dimension of the filter and reducing the amount of resin used. It is an object of the present invention to provide a mechanical fluid filter and a manufacturing method thereof.

本発明は、以下の通りである。
１．樹脂製の上側ケース部材と、
前記上側ケース部材との間で濾過室を形成する樹脂製の下側ケース部材と、
前記濾過室内に配置される濾材及び該濾材の縁端を保持する樹脂製の側板を有するフィルタエレメントと、を備え、
前記上側ケース部材の周側壁の下端部と前記側板の上端部との間には、該上側ケース部材及び該側板を接合する上側接合部が形成されており、
前記下側ケース部材の周側壁の上端部と前記側板の下端部との間には、該下側ケース部材及び該側板を接合する下側接合部が形成されている自動変速機用流体フィルタであって、
前記側板は、前記濾材の高さより大きな高さを有する前記自動変速機用流体フィルタの意匠側面を形成しており、
前記下側ケース部材の周側壁の上端部と前記側板の下端部とのうちの一方には、上下方向に突出する凸部が設けられており、他方には上下方向に凹み且つ該凸部が嵌合する凹部が設けられており、
前記上側接合部は、前記上側ケース部材の周側壁の下端部と前記側板の上端部との振動溶着により形成されており、
前記下側接合部は、前記振動溶着の際に前記側板を挟んで前記上側ケース部材及び前記下側ケース部材を上下方向に加圧するときに前記凸部及び前記凹部が嵌合されることにより形成されていることを特徴とする自動変速機用流体フィルタ。
２．前記自動変速機用流体フィルタを上下方向から見たときに、前記濾材の縁端が前記上側ケース部材及び前記下側ケース部材のそれぞれの前記周側壁と重なっている上記１．記載の自動変速機用流体フィルタ。
３．前記凸部及び／又は前記凹部には、該凸部及び該凹部が嵌合されるときに押し潰される突起が設けられている上記１．又は２．記載の自動変速機用流体フィルタ。
４．前記濾材は、ひだ折り状に形成されており、
前記側板は、前記濾材のひだ折り側の縁端を保持する第１側板と、前記濾材の非ひだ折り側の縁端を保持する第２側板と、を有して枠状に形成されており、該第１側板及び該第２側板のそれぞれは、前記濾材のひだ折高さ（ｈ１）より大きな高さ（ｈ２）を有している上記１．乃至３．のいずれか一項に記載の自動変速機用流体フィルタ。
５．上記１．乃至４．のいずれか一項に記載の自動変速機用流体フィルタの製造方法であって、
前記上側ケース部材の周側壁の下端部と前記側板の上端部との間に、該上側ケース部材及び該側板を接合する上側接合部を形成すると共に、前記下側ケース部材の周側壁の上端部と前記側板の下端部との間に、該下側ケース部材及び該側板を接合する下側接合部を形成する工程を備え、
前記工程では、前記上側接合部は、前記上側ケース部材の周側壁の下端部と前記側板の上端部との振動溶着により形成され、前記下側接合部は、前記振動溶着の際に前記側板を挟んで前記上側ケース部材及び前記下側ケース部材を上下方向に加圧するときに前記凸部及び前記凹部が嵌合されることにより形成されることを特徴とする自動変速機用流体フィルタの製造方法。 The present invention is as follows.
1. An upper case member made of resin;
A lower case member made of resin that forms a filtration chamber with the upper case member;
A filter element having a filter medium disposed in the filter chamber and a resin side plate that holds an edge of the filter medium;
Between the lower end part of the peripheral side wall of the upper case member and the upper end part of the side plate, an upper joint part for joining the upper case member and the side plate is formed,
A fluid filter for an automatic transmission in which a lower joint portion for joining the lower case member and the side plate is formed between an upper end portion of a peripheral side wall of the lower case member and a lower end portion of the side plate. There,
The side plate forms a design side surface of the fluid filter for an automatic transmission having a height larger than the height of the filter medium,
One of the upper end portion of the peripheral side wall of the lower case member and the lower end portion of the side plate is provided with a convex portion protruding in the vertical direction, and the other is recessed in the vertical direction and has the convex portion. A recess to be fitted is provided,
The upper joint portion is formed by vibration welding between the lower end portion of the peripheral side wall of the upper case member and the upper end portion of the side plate,
The lower joint portion is formed by fitting the convex portion and the concave portion when pressing the upper case member and the lower case member in the vertical direction across the side plate during the vibration welding. A fluid filter for an automatic transmission.
2. 1. When the automatic transmission fluid filter is viewed from above and below, the edge of the filter medium overlaps the respective peripheral side walls of the upper case member and the lower case member . The fluid filter for automatic transmission as described.
3. The protrusions and / or the recesses are provided with protrusions that are crushed when the protrusions and the recesses are fitted . Or 2. The fluid filter for automatic transmission as described.
4). The filter medium is formed in a fold shape,
The side plate has a first side plate that holds an edge of the filter medium on the fold-fold side, and a second side plate that holds an edge of the filter medium on the non-fold-fold side, and is formed in a frame shape. Each of the first side plate and the second side plate has a height (h2) larger than the fold height (h1) of the filter medium. To 3. The fluid filter for an automatic transmission according to any one of the above.
5. Above 1. To 4. A method of manufacturing a fluid filter for an automatic transmission according to any one of
An upper joint part for joining the upper case member and the side plate is formed between a lower end part of the peripheral side wall of the upper case member and an upper end part of the side plate, and an upper end part of the peripheral side wall of the lower case member And a step of forming a lower joint portion for joining the lower case member and the side plate between the lower end portion of the side plate ,
In the step, the upper joint portion is formed by vibration welding between a lower end portion of a peripheral side wall of the upper case member and an upper end portion of the side plate, and the lower joint portion attaches the side plate during the vibration welding. A method for producing a fluid filter for an automatic transmission , wherein the convex portion and the concave portion are fitted together when the upper case member and the lower case member are pressed in the vertical direction. .

本発明の自動変速機用流体フィルタによると、上側ケース部材の周側壁の下端部と側板の上端部との間には、該上側ケース部材及び該側板を接合する上側接合部が形成されており、下側ケース部材の周側壁の上端部と側板の下端部との間には、該下側ケース部材及び該側板を接合する下側接合部が形成されている。すなわち、フィルタエレメントを構成する側板の上下端部を利用してフィルタエレメントと各ケース部材とを接合している。したがって、濾過室の略全域にわたって濾材を配置させ得ると共に、従来のように外側方に突出する溶着部を設ける必要がない。その結果、フィルタの外観寸法に対する濾材の濾過面積を大きくしてフィルタの小型化を図ることができると共に、樹脂使用量を低減することができる。
また、前記下側ケース部材の周側壁の上端部と前記側板の下端部とのうちの一方には、上下方向に突出する凸部が設けられており、他方には上下方向に凹み且つ該凸部が嵌合する凹部が設けられており、前記上側接合部が、前記上側ケース部材の周側壁の下端部と前記側板の上端部との振動溶着により形成されており、前記下側接合部が、前記振動溶着の際に前記側板を挟んで前記上側ケース部材及び前記下側ケース部材を上下方向に加圧するときに前記凸部及び前記凹部が嵌合されることにより形成されているので、振動溶着により上側接合部を形成しているので、濾過室（特にクリーン室）に必要な密封性を発揮し得る上側接合部を容易且つ確実に形成することができる。また、上側接合部を形成するための振動溶着の際の各ケース部材の加圧力を利用して下側接合部を形成しているので、濾過室（特にダスティ室）に必要な密封性を発揮し得る下側接合部を容易且つ確実に形成することができる。
また、前記凸部及び／又は前記凹部には、該凸部及び該凹部が嵌合されるときに押し潰される突起が設けられている場合は、突起が押し潰された状態で凸部及び凹部がより強固に嵌合されるので、下側接合部の接合力をより高めることができる。
さらに、前記濾材が、ひだ折り状に形成されており、前記側板が、前記濾材のひだ折り側の縁端を保持する第１側板と、前記濾材の非ひだ折り側の縁端を保持する第２側板と、を有して枠状に形成されており、該第１側板及び該第２側板のそれぞれが、前記濾材のひだ折高さ（ｈ１）より大きな高さ（ｈ２）を有している場合は、枠状の側板に対して濾材のひだ折り側及び非ひだ折り側の縁端をより確実に保持させることができる。したがって、フィルタの品質を向上させることができる。 According to the fluid filter for an automatic transmission of the present invention, an upper joint portion for joining the upper case member and the side plate is formed between the lower end portion of the peripheral side wall of the upper case member and the upper end portion of the side plate. Between the upper end portion of the peripheral side wall of the lower case member and the lower end portion of the side plate, a lower joint portion that joins the lower case member and the side plate is formed. That is, the filter element and each case member are joined using the upper and lower ends of the side plate constituting the filter element. Accordingly, it is possible to dispose the filter medium over substantially the entire region of the filtration chamber, and it is not necessary to provide a welded portion that protrudes outward as in the conventional case. As a result, it is possible to increase the filtration area of the filter medium with respect to the external dimensions of the filter to reduce the size of the filter and reduce the amount of resin used.
Further, one of the upper end portion of the peripheral side wall of the lower case member and the lower end portion of the side plate is provided with a convex portion protruding in the vertical direction, and the other is recessed in the vertical direction. The upper joint is formed by vibration welding between the lower end of the peripheral side wall of the upper case member and the upper end of the side plate, and the lower joint is the so formed by the convex portion and the concave portion is fitted when pressurizing the upper casing member and the lower casing member across the plate during the vibration welding in the vertical direction, the vibration Since the upper joint portion is formed by welding, the upper joint portion that can exhibit the sealing performance required for the filtration chamber (particularly the clean chamber) can be easily and reliably formed. In addition, since the lower joint is formed using the pressure of each case member during vibration welding to form the upper joint, the sealing performance required for the filtration chamber (especially the dusty chamber) is exhibited. It is possible to easily and reliably form the lower joint portion that can be formed.
In addition, when the protrusion and / or the recess is provided with a protrusion that is crushed when the protrusion and the recess are fitted, the protrusion and the recess in a state where the protrusion is crushed. Is more firmly fitted, so that the joining force of the lower joint can be further increased.
Further, the filter medium is formed in a fold-fold shape, and the side plate holds a first side plate that holds a fold-fold side edge of the filter medium, and a non-fold-fold side edge of the filter medium. Each of the first side plate and the second side plate has a height (h2) greater than the fold height (h1) of the filter medium. In this case, the edge of the fold-fold side and the non-fold-fold side of the filter medium can be more reliably held with respect to the frame-shaped side plate. Therefore, the quality of the filter can be improved.

本発明の自動変速機用流体フィルタの製造方法によると、上側ケース部材の周側壁の下端部と側板の上端部との間には、該上側ケース部材及び該側板を接合する上側接合部が形成されており、下側ケース部材の周側壁の上端部と側板の下端部との間には、該下側ケース部材及び該側板を接合する下側接合部が形成されている。すなわち、フィルタエレメントを構成する側板の上下端部を利用してフィルタエレメントと各ケース部材とを接合している。したがって、濾過室の略全域にわたって濾材を配置させ得ると共に、従来のように外側方に突出する溶着部を設ける必要がない。その結果、フィルタの外観寸法に対する濾材の濾過面積を大きくしてフィルタの小型化を図ることができると共に、樹脂使用量を低減することができる。   According to the method for manufacturing a fluid filter for an automatic transmission of the present invention, an upper joint portion for joining the upper case member and the side plate is formed between the lower end portion of the peripheral side wall of the upper case member and the upper end portion of the side plate. A lower joint portion for joining the lower case member and the side plate is formed between the upper end portion of the peripheral side wall of the lower case member and the lower end portion of the side plate. That is, the filter element and each case member are joined using the upper and lower ends of the side plate constituting the filter element. Accordingly, it is possible to dispose the filter medium over substantially the entire region of the filtration chamber, and it is not necessary to provide a welded portion that protrudes outward as in the conventional case. As a result, it is possible to increase the filtration area of the filter medium with respect to the external dimensions of the filter to reduce the size of the filter and reduce the amount of resin used.

実施例に係るオイルフィルタの全体を示す斜視図である。It is a perspective view showing the whole oil filter concerning an example. 図１のＩＩ−ＩＩ線断面図である。It is the II-II sectional view taken on the line of FIG. 図１のＩＩＩ−ＩＩＩ線断面図である。It is the III-III sectional view taken on the line of FIG. 図３のＩＶ矢視で示す部位の拡大図である。It is an enlarged view of the site | part shown by IV arrow of FIG. 図３のＶ矢視で示す部位の拡大図である。It is an enlarged view of the site | part shown by V arrow of FIG. 上記オイルフィルタの製造方法を説明するための説明図である。It is explanatory drawing for demonstrating the manufacturing method of the said oil filter. 図６のＶＩＩ矢視で示す部位の拡大図である。It is an enlarged view of the site | part shown by the VII arrow of FIG. 図６のＶＩＩＩ矢視で示す部位の拡大図である。It is an enlarged view of the site | part shown by the VIII arrow of FIG. 図１のＩＸ−ＩＸ線断面図である。It is the IX-IX sectional view taken on the line of FIG. 下側接合部のその他の形態を説明するための説明図である。It is explanatory drawing for demonstrating the other form of a lower side junction part. 参考例の下側接合部を説明するための説明図である。It is explanatory drawing for demonstrating the lower side junction part of a reference example . 上側接合部及び下側接合部の更にその他の形態を説明するための説明図である。It is explanatory drawing for demonstrating the further another form of an upper side junction part and a lower side junction part. 従来のオイルフィルタを説明するための説明図である。It is explanatory drawing for demonstrating the conventional oil filter.

１．自動変速機用流体フィルタ
本実施形態１．に係る自動変速機用流体フィルタ（以下、単に「フィルタ」とも略記する。）は、以下に述べる上側ケース部材、下側ケース部材及びフィルタエレメントを備えている。なお、上記自動変速機の種類としては、例えば、トルコン式、ＣＶＴ式などを挙げることができる。 1. Fluid filter for automatic transmission Embodiment 1 The automatic transmission fluid filter (hereinafter also simply referred to as “filter”) includes an upper case member, a lower case member, and a filter element described below. Examples of the type of the automatic transmission include a torque converter type and a CVT type.

上記「上側ケース部材」は、樹脂製である限り、その構造、形状、大きさ等は特に問わない。この上側ケース部材は、通常、下方を開放した箱状に形成されており、天井壁及びこの天井壁の周縁端から上下方向に延びる周側壁を有している。   As long as the “upper case member” is made of resin, its structure, shape, size, etc. are not particularly limited. The upper case member is generally formed in a box shape with the lower part open, and has a ceiling wall and a peripheral side wall extending in the vertical direction from the peripheral edge of the ceiling wall.

上記「下側ケース部材」は、上側ケース部材との間で濾過室を形成し且つ樹脂製である限り、その構造、形状、大きさ等は特に問わない。この下側ケース部材は、通常、上方を開放した箱状に形成されており、底壁及びこの底壁の周縁端から上下方向に延びる周側壁を有している。   As long as the “lower case member” forms a filtration chamber with the upper case member and is made of resin, its structure, shape, size, etc. are not particularly limited. The lower case member is generally formed in a box shape with the upper side open, and has a bottom wall and a peripheral side wall extending in the vertical direction from the peripheral edge of the bottom wall.

上記「フィルタエレメント」は、上記濾過室内に配置される濾材及び該濾材の縁端を保持する樹脂製の側板を有する限り、その構造、形状、大きさ等は特に問わない。このフィルタエレメントによって、通常、フィルタの濾過室は、上側のクリーン室と下側のダスティ室とに区画されている。また、このフィルタエレメントの側板、上側ケース部材及び下側ケース部材によって、通常、フィルタの濾過室が形成されると共に、フィルタの外側面（意匠側面）が形成される。
上記濾材の形状としては、例えば、ひだ折り状、シート状、波状、袋状等を挙げることができる。また、上記濾材の材質としては、例えば、不織布、織物、紙等を挙げることができる。
上記濾材は、例えば、フィルタの平面視において、その縁端が上側ケース部材及び下側ケース部材のそれぞれの周側壁と重なって設けられていることができる。これにより、濾材の濾過面積をより大きくすることができる。 The “filter element” is not particularly limited in its structure, shape, size, and the like as long as it has a filter medium disposed in the filter chamber and a resin side plate that holds the edge of the filter medium. By this filter element, the filter chamber of the filter is usually divided into an upper clean chamber and a lower dusty chamber. Further, the filter plate chamber and the outer side surface (design side surface) of the filter are usually formed by the side plate, the upper case member, and the lower case member of the filter element.
Examples of the shape of the filter medium include a fold shape, a sheet shape, a wave shape, and a bag shape. Moreover, as a material of the said filter medium, a nonwoven fabric, a textile fabric, paper etc. can be mentioned, for example.
The filter medium can be provided, for example, in a plan view of the filter, with the edge thereof overlapping the respective peripheral side walls of the upper case member and the lower case member. Thereby, the filtration area of a filter medium can be enlarged more.

本実施形態１．のフィルタでは、上側ケース部材の周側壁の下端部と側板の上端部との間には、該上側ケース部材及び該側板を接合する上側接合部が形成されており、下側ケース部材の周側壁の上端部と前記側板の下端部との間には、該下側ケース部材及び該側板を接合する下側接合部が形成されている。これら上側接合部及び下側接合部は、通常、各ケース部材の周側壁の全周にわたって設けられている。
上記上側接合部及び下側接合部の接合形態としては、例えば、（１）振動、超音波、レーザー、熱板等による溶着、（２）接着剤等による接着、（３）凸部及び凹部による嵌合等のうちの１種又は２種以上の組み合わせを挙げることができる。 Embodiment 1 In this filter, an upper joint part for joining the upper case member and the side plate is formed between the lower end part of the peripheral side wall of the upper case member and the upper end part of the side plate, and the peripheral side wall of the lower case member A lower joint part for joining the lower case member and the side plate is formed between the upper end of the side plate and the lower end of the side plate. These upper and lower joints are usually provided over the entire circumference of the peripheral side wall of each case member.
For example, (1) welding by vibration, ultrasonic wave, laser, hot plate, etc., (2) adhesion by an adhesive, etc., (3) by a convex part and a concave part. One type or a combination of two or more types of fittings can be exemplified.

ここで、本実施形態１．のフィルタとしては、例えば、下側ケース部材の周側壁の上端部と側板の下端部とのうちの一方には、上下方向に突出する凸部が設けられており、他方には上下方向に凹み且つ該凸部が嵌合する凹部が設けられており、上側接合部は、上側ケース部材の周側壁の下端部と側板の上端部との振動溶着により形成されており、下側接合部は、振動溶着の際に側板を挟んで上側ケース部材及び下側ケース部材を上下方向に加圧するときに凸部及び凹部が嵌合されることにより形成されている形態を挙げることができる。
上記凸部及び／又は凹部の形状、大きさ、個数、配置形態等は特に問わない。これら凸部及び／又は凹部には、該凸部及び該凹部が嵌合されるときに押し潰される突起が設けられていることができる。
上記下側接合部には、例えば、上側接合部を形成するための振動溶着によって、下側ケース部材の周側壁の上端部と側板の下端部との間で振動溶着される溶着部が形成されていることができる。これにより、下側接合部の接合力をより高めることができる。 Here, the first embodiment. As the filter, for example, one of the upper end portion of the peripheral side wall of the lower case member and the lower end portion of the side plate is provided with a convex portion protruding in the vertical direction, and the other is recessed in the vertical direction. And the recessed part which this convex part fits is provided, the upper joined part is formed by vibration welding with the lower end part of the peripheral side wall of an upper case member, and the upper end part of a side board, and the lower joined part is The form formed by fitting a convex part and a recessed part when pressing an upper case member and a lower case member up and down across a side plate at the time of vibration welding can be mentioned.
There is no particular limitation on the shape, size, number, arrangement form, etc. of the protrusions and / or recesses. The protrusions and / or the recesses may be provided with protrusions that are crushed when the protrusions and the recesses are fitted.
The lower joint portion is formed with a weld portion that is vibration welded between the upper end portion of the peripheral side wall of the lower case member and the lower end portion of the side plate, for example, by vibration welding for forming the upper joint portion. Can be. Thereby, the joining force of a lower side junction part can be raised more.

ここで、本実施形態１．のフィルタとしては、例えば、濾材は、ひだ折り状に形成されており、側板は、濾材のひだ折り側の縁端を保持する第１側板と、濾材の非ひだ折り側の縁端を保持する第２側板と、を有して枠状に形成されており、該第１側板及び該第２側板のそれぞれは、濾材のひだ折高さ（ｈ１）より大きな高さ（ｈ２）を有している形態を挙げることができる。   Here, the first embodiment. As the filter, for example, the filter medium is formed in a fold-fold shape, and the side plate holds the first side plate holding the fold-fold edge of the filter medium and the non-fold-fold edge of the filter medium. A second side plate, and each of the first side plate and the second side plate has a height (h2) greater than a fold height (h1) of the filter medium. Can be mentioned.

２．自動変速機用流体フィルタの製造方法
本実施形態２．に係る自動変速機用流体フィルタの製造方法は、樹脂製の上側ケース部材と、上側ケース部材との間で濾過室を形成する樹脂製の下側ケース部材と、濾過室内に配置される濾材及び該濾材の縁端を保持する樹脂製の側板を有するフィルタエレメントと、を備える自動変速機用流体フィルタの製造方法であって、
前記上側ケース部材の周側壁の下端部と前記側板の上端部との間に、該上側ケース部材及び該側板を接合する上側接合部を形成すると共に、前記下側ケース部材の周側壁の上端部と前記側板の下端部との間に、該下側ケース部材及び該側板を接合する下側接合部を形成する工程を備えることを特徴とする。
なお、本記自動変速機用流体フィルタの製造方法は、例えば、上記実施形態１．の自動変速機用流体フィルタを製造する方法であることができる。 2. Method of manufacturing fluid filter for automatic transmission Embodiment 2 The method for manufacturing a fluid filter for an automatic transmission according to the present invention includes a resin upper case member, a resin lower case member that forms a filtration chamber between the upper case member, a filter medium disposed in the filter chamber, and A filter element having a resin side plate for holding an edge of the filter medium, and a method for producing a fluid filter for an automatic transmission,
An upper joint part for joining the upper case member and the side plate is formed between a lower end part of the peripheral side wall of the upper case member and an upper end part of the side plate, and an upper end part of the peripheral side wall of the lower case member And a lower joint portion for joining the lower case member and the side plate between the lower plate and the lower end portion of the side plate.
In addition, the manufacturing method of the fluid filter for this automatic transmission is described in, for example, the first embodiment. The method of manufacturing a fluid filter for an automatic transmission can be as follows.

以下、図面を用いて実施例により本発明を具体的に説明する。なお、本実施例では、本発明に係る「自動変速機用流体フィルタ」として自動変速機用オイルフィルタ（以下、単に「オイルフィルタ」とも略記する。）を例示する。   Hereinafter, the present invention will be specifically described with reference to the drawings. In the present embodiment, an automatic transmission oil filter (hereinafter also simply referred to as “oil filter”) is illustrated as an “automatic transmission fluid filter” according to the present invention.

（１）オイルフィルタの構成
本実施例に係るオイルフィルタ１は、図１〜３に示すように、樹脂製の上側ケース部材２と、この上側ケース部材２との間で濾過室４を形成する樹脂製の下側ケース部材３と、これら各ケース部材２，３の間に挟持されるフィルタエレメント５と、を備えている。 (1) Configuration of Oil Filter As shown in FIGS. 1 to 3, the oil filter 1 according to this embodiment forms a filtration chamber 4 between a resin upper case member 2 and the upper case member 2. A lower case member 3 made of resin and a filter element 5 sandwiched between the case members 2 and 3 are provided.

上記上側ケース部材２は、下方を開放した箱状に形成されており、天井壁２ａ及びこの天上壁２ａの周縁端から下方に延びる周側壁２ｂを有している。この天井壁２ａには、濾過室４内のオイルを流出させるオイル流出部６ａが設けられている。この周側壁２ｂの下端部には、上下方向に凹んだ凹部７が周側壁２ｂの全周にわたって形成されている（図７参照）。   The upper case member 2 is formed in a box shape with the lower part open, and has a ceiling wall 2a and a peripheral side wall 2b extending downward from the peripheral edge of the top wall 2a. The ceiling wall 2a is provided with an oil outflow portion 6a through which oil in the filtration chamber 4 flows out. At the lower end of the peripheral side wall 2b, a recess 7 that is recessed in the vertical direction is formed over the entire periphery of the peripheral side wall 2b (see FIG. 7).

上記下側ケース部材３は、上方を開放した箱状に形成されており、底壁３ａ及びこの底壁３ａの周縁端から上方に延びる周側壁３ｂを有している。この底壁３ａには、濾過室４内にオイルを流入させるオイル流入部６ｂが設けられている。この周側壁３ｂの上端部には、上下方向に凹んだ凹部８が周側壁３ｂの全周にわたって形成されている（図８参照）。   The lower case member 3 is formed in a box shape with the top opened, and has a bottom wall 3a and a peripheral side wall 3b extending upward from the peripheral edge of the bottom wall 3a. The bottom wall 3 a is provided with an oil inflow portion 6 b through which oil flows into the filtration chamber 4. At the upper end portion of the peripheral side wall 3b, a concave portion 8 that is recessed in the vertical direction is formed over the entire periphery of the peripheral side wall 3b (see FIG. 8).

上記フィルタエレメント５は、濾過室４内に配置される濾材９及びこの濾材９の縁端を保持する樹脂製の側板１０を有している。このフィルタエレメント５は、これら濾材９及び側板１０をインサート成形により一体成形してなされている。また、このフィルタエレメント５によって、上記濾過室４は、上側のクリーン室４ａと下側のダスティ室４ｂとに区画されている。   The filter element 5 includes a filter medium 9 disposed in the filtration chamber 4 and a resin side plate 10 that holds the edge of the filter medium 9. The filter element 5 is formed by integrally forming the filter medium 9 and the side plate 10 by insert molding. The filter element 5 divides the filtration chamber 4 into an upper clean chamber 4a and a lower dusty chamber 4b.

上記濾材９は、不織布製でひだ折り状に形成されており、ひだ折り側の縁端９ａと非ひだ折り側の縁端９ｂとを有している。この濾材９は、オイルフィルタ１の平面視において、その縁端が各ケース部材２，３のそれぞれの周側壁２ｂ，３ｂと重なって設けられている。   The filter medium 9 is made of non-woven fabric and is formed in a fold-like shape, and has a fold-fold side edge 9a and a non-fold-fold side edge 9b. The filter medium 9 is provided so that the edge of the filter medium 9 overlaps with the respective peripheral side walls 2 b and 3 b of the case members 2 and 3 in a plan view of the oil filter 1.

上記側板１０は、濾材９のひだ折り側の縁端９ａを保持する第１側板１０ａと、濾材９の非ひだ折り側の縁端９ｂを保持する第２側板１０ｂと、を有して枠状に形成されている。これら第１側板１０ａ及び第２側板１０ｂのそれぞれは、濾材９のひだ折高さｈ１より大きな高さｈ２を有している（図２参照）。そして、これら第１側板１０ａ、第２側板１０ｂ、上側ケース部材２及び下側ケース部材３によって、オイルフィルタ１の上記濾過室４が形成されると共に、オイルフィルタ１の外側面（意匠側面）が形成されることとなる。   The side plate 10 has a first side plate 10a that holds the edge 9a on the fold-fold side of the filter medium 9, and a second side plate 10b that holds the edge 9b on the non-fold-fold side of the filter medium 9, and has a frame shape. Is formed. Each of the first side plate 10a and the second side plate 10b has a height h2 larger than the fold height h1 of the filter medium 9 (see FIG. 2). The first side plate 10a, the second side plate 10b, the upper case member 2 and the lower case member 3 form the filtration chamber 4 of the oil filter 1, and the outer side surface (design side surface) of the oil filter 1 is formed. Will be formed.

上記第１側板１０ａ及び第２側板１０ｂの上端部には、図６及び図７に示すように、上下方向に突出した突起１２が側板１０の全周にわって設けられている。また、これら第１側板１０ａ及び第２側板１０ｂの下端部には、図６及び図８に示すように、上下方向に突出し且つ上記凹部８に嵌合（圧入嵌合）される凸部１３が側板１０の全周にわたって形成されている。この凸部１３の先端側には、凸部１３及び凹部８が嵌合されるときに押し潰される突起１４が側板１０の全周にわたって設けられている。   As shown in FIGS. 6 and 7, protrusions 12 protruding in the vertical direction are provided on the upper ends of the first side plate 10 a and the second side plate 10 b over the entire circumference of the side plate 10. Further, at the lower ends of the first side plate 10a and the second side plate 10b, as shown in FIGS. 6 and 8, a convex portion 13 that protrudes in the vertical direction and is fitted (press-fit) into the concave portion 8 is provided. It is formed over the entire circumference of the side plate 10. A protrusion 14 that is crushed when the convex portion 13 and the concave portion 8 are fitted is provided on the front end side of the convex portion 13 over the entire circumference of the side plate 10.

上記上側ケース部材２の周側壁２ｂの下端部と側板１０の上端部との間には、図４に示すように、これら上側ケース部材２及び側板１０を接合する上側接合部１６が周側壁２ｂの全周にわたって形成されている。この上側接合部１６は、主に上記凹部７及び突起１２が振動溶着により溶融されて形成されている。   As shown in FIG. 4, an upper joint portion 16 that joins the upper case member 2 and the side plate 10 is provided between the lower end portion of the peripheral side wall 2 b of the upper case member 2 and the upper end portion of the side plate 10. Is formed over the entire circumference. The upper joint 16 is mainly formed by melting the concave portion 7 and the protrusion 12 by vibration welding.

上記下側ケース部材３の周側壁３ｂの上端部と側板１０の下端部との間には、図５及び図９に示すように、これら下側ケース部材３及び側板１０を接合する下側接合部１７が周側壁３ｂの全周にわたって形成されている。この下側接合部１７は、上記突起１２が凹部８内で押し潰された状態で凸部１３及び凹部８が嵌合されることにより形成されている。   As shown in FIGS. 5 and 9, a lower joint for joining the lower case member 3 and the side plate 10 between the upper end portion of the peripheral side wall 3 b of the lower case member 3 and the lower end portion of the side plate 10. The portion 17 is formed over the entire circumference of the peripheral side wall 3b. The lower joint portion 17 is formed by fitting the convex portion 13 and the concave portion 8 with the projection 12 being crushed in the concave portion 8.

（２）オイルフィルタの製造方法
次に、上記構成のオイルフィルタ１の製造方法について説明する。
図６に示すように、上側ケース部材２の凹部７と側板１０の突起１２とが対向すると共に、下側ケース部材３の凹部８と側板の凸部１３とが対向するように上側ケース部材２、下側ケース部材３及びフィルタエレメント５を振動溶着装置の複数の型部（図示省略）にセットする。次に、それら複数の型部を上下方向に移動させて、側板１０を挟んで上側ケース部材２及び下側ケース部材３を上下方向に所定の加圧力で加圧する。このとき、凹部８内で突起１２が押し潰された状態で凸部１３及び凹部８が嵌合されて下側接合部１７（図５参照）が形成される。次いで、その振動溶着装置によって、固定状態の下側ケース部材３及びフィルタエレメント５に対して上側ケース部材２を所定の振動方向Ｐ（図１参照）に振動させると、突起１２及び凹部７が溶融されて上側接合部１６（図４参照）が形成される。 (2) Manufacturing method of oil filter Next, the manufacturing method of the oil filter 1 of the said structure is demonstrated.
As shown in FIG. 6, the upper case member 2 is formed such that the concave portion 7 of the upper case member 2 and the protrusion 12 of the side plate 10 face each other, and the concave portion 8 of the lower case member 3 and the convex portion 13 of the side plate face each other. The lower case member 3 and the filter element 5 are set in a plurality of mold parts (not shown) of the vibration welding apparatus. Next, the plurality of mold parts are moved in the vertical direction, and the upper case member 2 and the lower case member 3 are pressed in the vertical direction with a predetermined pressing force with the side plate 10 interposed therebetween. At this time, the protrusion 13 and the recess 8 are fitted in a state in which the protrusion 12 is crushed in the recess 8 to form the lower joint 17 (see FIG. 5). Next, when the upper case member 2 is vibrated in a predetermined vibration direction P (see FIG. 1) with respect to the fixed lower case member 3 and filter element 5 by the vibration welding device, the protrusion 12 and the recess 7 are melted. Thus, the upper joint portion 16 (see FIG. 4) is formed.

（３）実施例の効果
本実施例のオイルフィルタ１によると、上側ケース部材２の周側壁２ｂの下端部と側板１０の上端部との間には、該上側ケース部材２及び該側板１０を接合する上側接合部１６が形成されており、下側ケース部材３の周側壁３ｂの上端部と側板１０の下端部との間には、該下側ケース部材３及び該側板１０を接合する下側接合部１７が形成されている。すなわち、フィルタエレメント５を構成する側板１０の上下端部を利用してフィルタエレメント５と各ケース部材２，３とを接合している。したがって、濾過室４の略全域にわたって濾材９を配置させ得ると共に、従来のように外側方に突出する溶着部を設ける必要がない。その結果、オイルフィルタ１の外観寸法に対する濾材９の濾過面積を大きくしてオイルフィルタ１の小型化を図ることができると共に、樹脂使用量を低減することができる。 (3) Effects of the Example According to the oil filter 1 of the present example, the upper case member 2 and the side plate 10 are placed between the lower end portion of the peripheral side wall 2b of the upper case member 2 and the upper end portion of the side plate 10. An upper joint portion 16 to be joined is formed, and a lower joint member 3 and the side plate 10 are joined between the upper end portion of the peripheral side wall 3 b of the lower case member 3 and the lower end portion of the side plate 10. Side joints 17 are formed. That is, the filter element 5 and the case members 2 and 3 are joined using the upper and lower ends of the side plate 10 constituting the filter element 5. Therefore, the filter medium 9 can be disposed over substantially the entire area of the filtration chamber 4, and there is no need to provide a welded portion that protrudes outward as in the prior art. As a result, the filter area of the filter medium 9 with respect to the external dimensions of the oil filter 1 can be increased to reduce the size of the oil filter 1, and the amount of resin used can be reduced.

また、本実施例では、側板１０の下端部に上下方向に突出する凸部１３を設け、下側ケース部材３の周側壁３ｂの上端部に上下方向に凹み且つ凸部１３が嵌合する凹部８を設け、上側接合部１６を、上側ケース部材２の周側壁２ｂの下端部と側板１０の上端部との振動溶着により形成し、下側接合部１７を、振動溶着の際に側板１０を挟んで上側ケース部材２及び下側ケース部材３を上下方向に加圧するときに凸部１３及び凹部８が嵌合されることにより形成するようにしたので、振動溶着により上側接合部１６が形成されており、クリーン室４ａに必要な密封性を発揮し得る上側接合部１６を容易且つ確実に形成することができる。また、上側接合部１６を形成するための振動溶着の際の各ケース部材２，３の加圧力を利用して下側接合部１７を形成しているので、ダスティ室４ｂに必要な密封性を発揮し得る下側接合部１７を容易且つ確実に形成することができる。   In the present embodiment, a convex portion 13 that protrudes in the vertical direction is provided at the lower end portion of the side plate 10, and a concave portion that is recessed in the vertical direction at the upper end portion of the peripheral side wall 3 b of the lower case member 3 and into which the convex portion 13 is fitted. 8 and the upper joint portion 16 is formed by vibration welding between the lower end portion of the peripheral side wall 2b of the upper case member 2 and the upper end portion of the side plate 10, and the lower joint portion 17 is connected to the side plate 10 during vibration welding. The upper case member 2 and the lower case member 3 are formed by fitting the convex portion 13 and the concave portion 8 when the upper case member 2 and the lower case member 3 are pressed in the vertical direction, so that the upper joint portion 16 is formed by vibration welding. Therefore, the upper joint portion 16 that can exhibit the sealing performance necessary for the clean chamber 4a can be easily and reliably formed. In addition, since the lower joint portion 17 is formed by using the pressure applied to the case members 2 and 3 at the time of vibration welding for forming the upper joint portion 16, the sealing performance necessary for the dusty chamber 4b is provided. The lower joint portion 17 that can be exhibited can be formed easily and reliably.

また、本実施例では、凸部１３に、凸部１３及び凹部８が嵌合されるときに押し潰される突起１４を設けるようにしたので、突起１４が押し潰された状態で凸部１３及び凹部８がより強固に嵌合され、下側接合部１７の接合力をより高めることができる。   In the present embodiment, since the protrusion 13 is provided with the protrusion 14 that is crushed when the protrusion 13 and the recess 8 are fitted, the protrusion 13 and the protrusion 13 are crushed. The concave portion 8 is fitted more firmly, and the joining force of the lower joint portion 17 can be further increased.

さらに、本実施例では、濾材９を、ひだ折り状に形成し、側板１０を、濾材９のひだ折り側の縁端９ａを保持する第１側板１０ａと、濾材９の非ひだ折り側の縁端９ｂを保持する第２側板１０ｂと、を有して枠状に形成し、これら第１側板１０ａ及び第２側板１０ｂのそれぞれを、濾材９のひだ折高さｈ１より大きな高さｈ２を有して構成したので、枠状の側板１０に対して濾材９のひだ折り側及び非ひだ折り側の縁端９ａ，９ｂをより確実に保持させることができる。したがって、オイルフィルタ１の品質を向上させることができる。これに対して、従来一般のオイルフィルタでは、濾材の非ひだ折り側の縁端を保持する部位の高さ寸法は、濾材のひだ折り高さより小さな値に設定されているため、フィルタエレメントのインサート成形時に濾材の非ひだ折り端側の縁端があばれてしまい正確に保持されない場合があった。   Furthermore, in this embodiment, the filter medium 9 is formed in a fold-like shape, the side plate 10 is held by the first side plate 10a that holds the edge 9a on the fold-fold side of the filter medium 9, and the non-fold-fold side edge of the filter medium 9 A second side plate 10b that holds the end 9b, and each of the first side plate 10a and the second side plate 10b has a height h2 that is greater than the fold height h1 of the filter medium 9. Therefore, the edge 9a, 9b on the fold-fold side and the non-fold-fold side of the filter medium 9 can be more reliably held with respect to the frame-shaped side plate 10. Therefore, the quality of the oil filter 1 can be improved. On the other hand, in the conventional general oil filter, the height dimension of the portion that holds the edge of the filter medium on the non-folded side is set to a value smaller than the filter sheet fold-fold height. In some cases, the edge of the filter medium on the non-folded end side of the filter medium is broken and cannot be accurately held.

尚、本発明においては、上記実施例に限られず、目的、用途に応じて本発明の範囲内で種々変更した実施例とすることができる。即ち、上記実施例では、凸部１３及び凹部８の嵌合のみにより下側接合部１７を形成するようにしたが、これに限定されず、例えば、凸部１３及び凹部８の嵌合に加えて、上側接合部１６を形成するための振動溶着により凸部１３及び凹部８を溶融させて溶着部を下側接合部１７に設けるようにしてもよい。この溶着部は、例えば、下側ケース部材３の周側壁３ｂの全周に沿って設けられていてもよいが、複数の溶着部を下側ケース部材３の周側壁３ｂに沿う所定部位（例えば、図９中に仮想線で示す領域で囲まれる下側接合部の部位）に設けることが好ましい。ダスティ室４ｂに必要な密封性を発揮し得る下側接合部１７をより容易且つ確実に形成できるためである。特に、上記溶着部が下側ケース部材の周側壁の少なくとも４隅部に設けられていることが好ましい。   In the present invention, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention depending on the purpose and application. That is, in the above embodiment, the lower joint portion 17 is formed only by fitting the convex portion 13 and the concave portion 8. However, the present invention is not limited to this, for example, in addition to the fitting of the convex portion 13 and the concave portion 8. Then, the convex portion 13 and the concave portion 8 may be melted by vibration welding for forming the upper joint portion 16, and the weld portion may be provided in the lower joint portion 17. For example, the welded portion may be provided along the entire circumference of the peripheral side wall 3 b of the lower case member 3, but a plurality of welded portions may be provided at predetermined portions (for example, along the peripheral side wall 3 b of the lower case member 3). 9 is preferably provided at a portion of the lower joint portion surrounded by a region indicated by an imaginary line in FIG. This is because it is possible to more easily and reliably form the lower joint portion 17 that can exhibit the sealing performance necessary for the dusty chamber 4b. In particular, the welded portion is preferably provided at at least four corners of the peripheral side wall of the lower case member.

また、上記実施例では、凸部１３及び凹部８を各ケース部材２，３の周側壁２ｂ，３ｂの全周に沿って設けるようにしたが、これに限定されず、例えば、図１０に示すように、凸部１３及び凹部８を、上側接合部１６を形成するための振動溶着の所定の振動方向Ｐに沿って設けると共に、その振動方向Ｐに交差する方向に沿って設けないようにしてもよい。これにより、下側接合部１７において振動方向Ｐに交差する方向により容易且つ確実に溶着部を形成することができる。   Moreover, in the said Example, although the convex part 13 and the recessed part 8 were provided along the perimeter of the surrounding side walls 2b and 3b of each case member 2 and 3, it is not limited to this, For example, it shows in FIG. As described above, the convex portion 13 and the concave portion 8 are provided along a predetermined vibration direction P of vibration welding for forming the upper joint portion 16 and are not provided along a direction intersecting the vibration direction P. Also good. Thereby, the welding part can be easily and reliably formed in the direction intersecting the vibration direction P in the lower joint part 17.

また、上記実施例では、突起１２，１４を各ケース部材２，３の周側壁２ｂ，３ｂの全周に沿って設けるようにしたが、これに限定されず、例えば、複数の突起２，３を各ケース部材２，３の周側壁２ｂ，３ｂに沿う所定部位に設けるようにしてもよい。   Moreover, in the said Example, although protrusion 12 and 14 was provided along the perimeter of the peripheral side walls 2b and 3b of each case member 2 and 3, it is not limited to this, For example, several protrusion 2 and 3 May be provided at predetermined locations along the peripheral side walls 2b and 3b of the case members 2 and 3, respectively.

また、上記実施例では、上側接合部１６を振動溶着により形成すると共に、下側接合部１７を凸部１３及び凹部８の嵌合により形成するようにした。なお、参考例として、例えば、上側接合部１６及び下側接合部１７の両者を振動溶着により形成する形態を挙げることができる。この場合、例えば、図１１に示すように、側板１０の上端部及び下端部に突起１２を設け、各ケース部材２，３の周側壁２ｂ，３ｂの端部に凹部７を設け、１回の振動溶着により上側接合部１６及び下側接合部１７を同時に形成するようにしてもよい。 In the above embodiment, the upper joint portion 16 is formed by vibration welding, and the lower joint portion 17 is formed by fitting the convex portion 13 and the concave portion 8 together . In addition, as a reference example , the form which forms both the upper side junction part 16 and the lower side junction part 17 by vibration welding can be mentioned, for example . In this case, for example, as shown in FIG. 11, protrusions 12 are provided at the upper and lower ends of the side plate 10, and recesses 7 are provided at the ends of the peripheral side walls 2b and 3b of the case members 2 and 3, respectively. You may make it form the upper side junction part 16 and the lower side junction part 17 simultaneously by vibration welding.

また、上記実施例では、側板１０の下端部に凸部１３を設け、上側ケース部材２の周側壁２ｂの上端部に凹部７を設けるようにしたが、これに限定されず、例えば、図１２に示すように、側板１０の下端部に凹部７を設け、上側ケース部材２の周側壁２ｂの上端部に凸部１３を設けるようにしてもよい。   Moreover, in the said Example, although the convex part 13 was provided in the lower end part of the side plate 10, and the recessed part 7 was provided in the upper end part of the surrounding side wall 2b of the upper side case member 2, it is not limited to this, For example, FIG. As shown in FIG. 4, the concave portion 7 may be provided at the lower end portion of the side plate 10, and the convex portion 13 may be provided at the upper end portion of the peripheral side wall 2 b of the upper case member 2.

また、上記実施例では、側板１０の上端部に突起１２を設け、上側ケース部材２の周側壁２ｂの下端部に凹部７を設けるようにしたが、これに限定されず、例えば、図１２に示すように、側板１０の上端部に凹部７を設け、上側ケース部材２の周側壁２ｂの下端部に突起１２を設けるようにしてもよい。   Moreover, in the said Example, although the protrusion 12 was provided in the upper end part of the side plate 10, and the recessed part 7 was provided in the lower end part of the surrounding side wall 2b of the upper case member 2, it is not limited to this, For example, FIG. As shown, the concave portion 7 may be provided at the upper end portion of the side plate 10, and the protrusion 12 may be provided at the lower end portion of the peripheral side wall 2 b of the upper case member 2.

さらに、上記実施例では、上側接合部１６及び下側接合部１７を１工程で同時に形成するようにしたが、これに限定されず、例えば、上側接合部１６を形成する工程と下側接合部１７を形成する工程とを備え、上側接合部１６及び下側接合部１７を２回の工程で形成するようにしてもよい。この場合、例えば、先ず、凸部１３及び凹部８の嵌合により下側接合部１７を形成してフィルタエレメント５及び下側ケース部材３を一体化し、その後、振動溶着により上側接合部１６を形成してオイルフィルタ１を得ることができる。   Furthermore, in the said Example, although the upper side junction part 16 and the lower side junction part 17 were formed simultaneously at 1 process, it is not limited to this, For example, the process of forming the upper side junction part 16, and a lower side junction part 17 and the upper joint 16 and the lower joint 17 may be formed in two steps. In this case, for example, first, the lower joint portion 17 is formed by fitting the convex portion 13 and the concave portion 8 to integrate the filter element 5 and the lower case member 3, and then the upper joint portion 16 is formed by vibration welding. Thus, the oil filter 1 can be obtained.

車両等の自動変速機用流体を濾過するフィルタとして広く利用される。   Widely used as a filter for filtering fluid for an automatic transmission such as a vehicle.

１；オイルフィルタ、２；上側ケース部材、２ｂ；周側壁、３；下側ケース部材、３ｂ；周側壁、４；濾過室、４ａ；クリーン室、４ｂ；ダスティ室、５；フィルタエレメント、８；凹部、９；濾材、９ａ；ひだ折り側の縁端、９ｂ；非ひだ折り側の縁端、１０；側板、１０ａ；第１側板、１０ｂ；第２側板、１３；凸部、１４；突起、１６；上側接合部、１７；下側接合部。   DESCRIPTION OF SYMBOLS 1; Oil filter, 2; Upper case member, 2b: Peripheral side wall, 3; Lower side case member, 3b; Peripheral side wall, 4; Filtration chamber, 4a; Clean chamber, 4b: Dusty chamber, 5: Filter element, 8; Concave part, 9; filter medium, 9a; edge edge on fold fold side, 9b; edge edge on non-folded side, 10; side plate, 10a; first side plate, 10b; second side plate, 13; 16; upper joint, 17; lower joint.

Claims (5)

樹脂製の上側ケース部材と、
前記上側ケース部材との間で濾過室を形成する樹脂製の下側ケース部材と、
前記濾過室内に配置される濾材及び該濾材の縁端を保持する樹脂製の側板を有するフィルタエレメントと、を備え、
前記上側ケース部材の周側壁の下端部と前記側板の上端部との間には、該上側ケース部材及び該側板を接合する上側接合部が形成されており、
前記下側ケース部材の周側壁の上端部と前記側板の下端部との間には、該下側ケース部材及び該側板を接合する下側接合部が形成されている自動変速機用流体フィルタであって、
前記側板は、前記濾材の高さより大きな高さを有する前記自動変速機用流体フィルタの意匠側面を形成しており、
前記下側ケース部材の周側壁の上端部と前記側板の下端部とのうちの一方には、上下方向に突出する凸部が設けられており、他方には上下方向に凹み且つ該凸部が嵌合する凹部が設けられており、
前記上側接合部は、前記上側ケース部材の周側壁の下端部と前記側板の上端部との振動溶着により形成されており、
前記下側接合部は、前記振動溶着の際に前記側板を挟んで前記上側ケース部材及び前記下側ケース部材を上下方向に加圧するときに前記凸部及び前記凹部が嵌合されることにより形成されていることを特徴とする自動変速機用流体フィルタ。 An upper case member made of resin;
A lower case member made of resin that forms a filtration chamber with the upper case member;
A filter element having a filter medium disposed in the filter chamber and a resin side plate that holds an edge of the filter medium;
Between the lower end part of the peripheral side wall of the upper case member and the upper end part of the side plate, an upper joint part for joining the upper case member and the side plate is formed,
A fluid filter for an automatic transmission in which a lower joint portion for joining the lower case member and the side plate is formed between an upper end portion of a peripheral side wall of the lower case member and a lower end portion of the side plate. There,
The side plate forms a design side surface of the fluid filter for an automatic transmission having a height larger than the height of the filter medium,
One of the upper end portion of the peripheral side wall of the lower case member and the lower end portion of the side plate is provided with a convex portion protruding in the vertical direction, and the other is recessed in the vertical direction and has the convex portion. A recess to be fitted is provided,
The upper joint portion is formed by vibration welding between the lower end portion of the peripheral side wall of the upper case member and the upper end portion of the side plate,
The lower joint portion is formed by fitting the convex portion and the concave portion when pressing the upper case member and the lower case member in the vertical direction across the side plate during the vibration welding. A fluid filter for an automatic transmission. 前記自動変速機用流体フィルタを上下方向から見たときに、前記濾材の縁端が前記上側ケース部材及び前記下側ケース部材のそれぞれの前記周側壁と重なっている請求項１記載の自動変速機用流体フィルタ。 2. The automatic transmission according to claim 1 , wherein an edge of the filter medium overlaps each of the peripheral side walls of the upper case member and the lower case member when the fluid filter for the automatic transmission is viewed from above and below. Fluid filter. 前記凸部及び／又は前記凹部には、該凸部及び該凹部が嵌合されるときに押し潰される突起が設けられている請求項１又は２記載の自動変速機用流体フィルタ。 The fluid filter for an automatic transmission according to claim 1 or 2, wherein the protrusion and / or the recess is provided with a protrusion that is crushed when the protrusion and the recess are fitted. 前記濾材は、ひだ折り状に形成されており、
前記側板は、前記濾材のひだ折り側の縁端を保持する第１側板と、前記濾材の非ひだ折り側の縁端を保持する第２側板と、を有して枠状に形成されており、該第１側板及び該第２側板のそれぞれは、前記濾材のひだ折高さ（ｈ１）より大きな高さ（ｈ２）を有している請求項１乃至３のいずれか一項に記載の自動変速機用流体フィルタ。 The filter medium is formed in a fold shape,
The side plate has a first side plate that holds an edge of the filter medium on the fold-fold side, and a second side plate that holds an edge of the filter medium on the non-fold-fold side, and is formed in a frame shape. Each of the first side plate and the second side plate has a height (h2) greater than the fold height (h1) of the filter medium. Fluid filter for transmission. 請求項１乃至４のいずれか一項に記載の自動変速機用流体フィルタの製造方法であって、
前記上側ケース部材の周側壁の下端部と前記側板の上端部との間に、該上側ケース部材及び該側板を接合する上側接合部を形成すると共に、前記下側ケース部材の周側壁の上端部と前記側板の下端部との間に、該下側ケース部材及び該側板を接合する下側接合部を形成する工程を備え、
前記工程では、前記上側接合部は、前記上側ケース部材の周側壁の下端部と前記側板の上端部との振動溶着により形成され、前記下側接合部は、前記振動溶着の際に前記側板を挟んで前記上側ケース部材及び前記下側ケース部材を上下方向に加圧するときに前記凸部及び前記凹部が嵌合されることにより形成されることを特徴とする自動変速機用流体フィルタの製造方法。 A method for manufacturing a fluid filter for an automatic transmission according to any one of claims 1 to 4 ,
An upper joint part for joining the upper case member and the side plate is formed between a lower end part of the peripheral side wall of the upper case member and an upper end part of the side plate, and an upper end part of the peripheral side wall of the lower case member And a step of forming a lower joint portion for joining the lower case member and the side plate between the lower end portion of the side plate ,
In the step, the upper joint portion is formed by vibration welding between a lower end portion of a peripheral side wall of the upper case member and an upper end portion of the side plate, and the lower joint portion attaches the side plate during the vibration welding. A method for producing a fluid filter for an automatic transmission , wherein the convex portion and the concave portion are fitted together when the upper case member and the lower case member are pressed in the vertical direction. .
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