JP4145417B2 - Plastic parts - Google Patents

Plastic parts Download PDF

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Publication number
JP4145417B2
JP4145417B2 JP11679699A JP11679699A JP4145417B2 JP 4145417 B2 JP4145417 B2 JP 4145417B2 JP 11679699 A JP11679699 A JP 11679699A JP 11679699 A JP11679699 A JP 11679699A JP 4145417 B2 JP4145417 B2 JP 4145417B2
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JP
Japan
Prior art keywords
molded body
housing
flange
valve
welding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP11679699A
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Japanese (ja)
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JP2000301616A (en
Inventor
敦 中島
克美 渡辺
行雄 岩瀧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissin Kogyo Co Ltd
Original Assignee
Nissin Kogyo Co Ltd
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Priority to JP11679699A priority Critical patent/JP4145417B2/en
Publication of JP2000301616A publication Critical patent/JP2000301616A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/54Joining 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
    • B29C66/542Joining 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 hollow covers or hollow bottoms to open ends of container bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13Single 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
    • B29C66/131Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312Single flange to flange joints, the parts to be joined being rigid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242Particular 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
    • B29C66/2424Particular 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 being a closed polygonal chain
    • B29C66/24243Particular 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 being a closed polygonal chain forming a quadrilateral
    • B29C66/24244Particular 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 being a closed polygonal chain forming a quadrilateral forming a rectangle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/302Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022Particular 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
    • B29C66/30221Particular 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 point-like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/302Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022Particular 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
    • B29C66/30223Particular 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/32Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322Providing cavities in the joined article to collect the burr
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/748Machines or parts thereof not otherwise provided for
    • B29L2031/7482Brakes

Description

【0001】
【発明の属する技術分野】
本発明は、合成樹脂製の第1成形体に長方形状の接合面が形成され、相互に平行な一対の長辺部の両端に両長辺部と直交する方向で相互に平行に延びる一対の短辺部の両端が連設されて成るフランジと、横断面長方形の筒状に形成されて前記フランジから突出する溶着突起とを有して繊維混入合成樹脂から成る第2成形体が、前記溶着突起の前記接合面への振動溶着により第1成形体に結合される樹脂製部品に関する。
【0002】
【従来の技術】
従来、かかる樹脂製部品は、たとえば特開平7−266425号公報等で既に知られている。
【0003】
【発明が解決しようとする課題】
ところが、第2成形体の型成形時に、そのフランジからの溶着突起の突出部が第2成形体の他の部分よりも厚肉となっており、厚みが不均等であることに起因した引けが生じたり、一対の短辺部と直交する平面内でのフランジの反りが生じたりする。また第2成形体が繊維混入合成樹脂から成るものであるので、繊維の配向方向が、前記フランジにおける長辺部の長手方向に揃ってしまうと、前記フランジの反りが助長されてしまうことになる。而して、第2成形体に上述のような引けや反りが生じると、第1成形体への第2成形体の振動溶着により構成された樹脂製部品全体に歪みが生じてしまうことになり、商品性が低下する。
【0004】
本発明は、かかる事情に鑑みてなされたものであり、第2成形体の型成形時における引けや反りの発生を極力防止し、商品性を高めた樹脂製部品を提供することを目的とする。
【0005】
【課題を解決するための手段】
上記目的を達成するために、本発明は、合成樹脂製の第1成形体に長方形状の接合面が形成され、相互に平行な一対の長辺部の両端に両長辺部と直交する方向で相互に平行に延びる一対の短辺部の両端が連設されて成るフランジと、横断面長方形の筒状に形成されて前記フランジから突出する溶着突起とを有して繊維混入合成樹脂から成る第2成形体が、前記溶着突起の前記接合面への振動溶着により第1成形体に結合された樹脂製部品において、前記フランジのうち、少なくとも前記両長辺部の前記溶着突起とは反対側の面に、それらの長辺部の長手方向に間隔をあけて複数の凹部が、それらの凹部相互間に隔壁を介在させるようにして形成されたことを特徴とする。
【0006】
かかる構成によれば、第2成形体が備えるフランジのうち少なくとも両長辺部の前記溶着突起とは反対側の面に形成された複数の凹部により、フランジからの溶着突起の突出部が第2成形体の他の部分よりも著しく厚肉となるのを回避し、第2成形体の厚みを極力均等化することが可能となり、型成形時に第2成形体に引けや反りが生じるのを防止することができる。また第2成形体を成形するための金型には、各凹部を形成するための複数の突部が設けられることになり、それらの突部により、合成樹脂に混入されている繊維の方向が乱されるので、繊維の配向方向がフランジの長辺部の長手方向に揃ってしまうことはなく、これによりフランジの反りをより効果的に防止することができる。しかも各凹部間の隔壁は、フランジの補強機能、ならびに振動溶着時にフランジに作用する圧力によるフランジの変形を防止する機能を果すことができる。すなわちフランジからの溶着突起の突出部における肉厚均等化を果すためには、両長辺部の溶着突起とは反対側の面に、それらの長辺部の長手方向に延びる1条ずつの溝が設けられていてもよいのであるが、そのような溝では、フランジにおける長辺部の補強機能は得られず、振動溶着時にフランジに作用する圧力によるフランジの変形を防止する機能も得られないのであるが、複数の凹部相互間に隔壁を介在させることによって、肉厚をできるだけ均等化しながら補強機能・変形防止機能も持たせることが可能となる。
【0007】
【発明の実施の形態】
以下、本発明の実施の形態を、添付の図面に示した本発明の一実施例に基づいて説明する。
【0008】
図1〜図10は本発明の一実施例を示すものであり、図1は乗用車両用ブレーキ装置のブレーキ液圧回路図、図2はブレーキ液圧制御装置の一部切欠き側面図、図3は図2の3矢視図、図4は図2の4矢視図、図5は図3の5−5線拡大断面図、図6は磁路枠の斜視図、図7は成形前のカバーの要部拡大縦断面図、図8は成形後のカバーの図7に対応した断面図、図9は第2成形体成形用金型装置の横断面図、図10はカバーの第1成形体を図5の10−10線矢視方向から見た図である。
【0009】
先ず図1において、タンデム型のマスタシリンダMは、車両運転者がブレーキペダルPに加える踏力に応じたブレーキ液圧を発生する第1および第2出力ポート11 ,12 を備えており、左前輪用車輪ブレーキB1 、右後輪用車輪ブレーキB2 、右前輪用車輪ブレーキB3 および左後輪用車輪ブレーキB4 と、前記第1および第2出力ポート11 ,12 に個別に接続された第1および第2出力液圧路21 ,22 との間にブレーキ液圧制御装置3が設けられ、該ブレーキ液圧制御装置3および右、左後輪用車輪ブレーキB2 ,B4 間に、第1および第2比例減圧弁41 ,42 がそれぞれ介設される。
【0010】
ブレーキ液圧制御装置3は、左前輪用車輪ブレーキB1 、右後輪用車輪ブレーキB2 、右前輪用車輪ブレーキB3 および左後輪用車輪ブレーキB4 に個別に対応した第1、第2、第3および第4常開型電磁弁51 〜54 と、各常開型電磁弁51 〜54 にそれぞれ並列に接続される第1、第2、第3および第4チェック弁71 〜74 と、前記各車輪ブレーキB1 〜B4 に個別に対応した第1、第2、第3および第4常閉型電磁弁61 〜64 と、第1および第2出力液圧路21 ,22 にそれぞれ個別に対応した第1および第2リザーバ81 ,82 と、第1および第2リザーバ81 ,82 に吸入弁101 ,102 をそれぞれ介して接続されるプランジャ型の第1および第2ポンプ111 ,112 と、両ポンプ111 ,112 を駆動する共通1個の電動モータ12と、第1および第2ポンプ111 ,112 に吐出弁131 ,132 をそれぞれ介して接続される第1および第2ダンパ141 ,142 と、前記第1および第2出力液圧路21 ,22 と第1および第2ダンパ141 ,142 との間にそれぞれ介裝される第1および第2オリフィス151 ,152 と、各常開型電磁弁51 〜54 、各常閉型電磁弁61 〜64 および電動モータ12の作動を制御する電子制御ユニット16とを備える。
【0011】
第1常開型電磁弁51 は、第1出力液圧路21 および左前輪用車輪ブレーキB1 間に設けられ、第2常開型電磁弁52 は、第1出力液圧路21 および第1比例減圧弁41 間に設けられ、第3常開型電磁弁53 は、第2出力液圧路22 および右前輪用車輪ブレーキB3 間に設けられ、第4常開型電磁弁54 は、第2出力液圧路22 および第2比例減圧弁42 間に設けられる。
【0012】
また第1〜第4チェック弁71 〜74 は、対応する車輪ブレーキB1 〜B4 からマスタシリンダMへのブレーキ液の流れを許容するようにして、各常開型電磁弁51 〜54 に並列に接続される。
【0013】
第1常閉型電磁弁61 は、左前輪用車輪ブレーキB1 および第1リザーバ81 間に設けられ、第2常閉型電磁弁62 は、第1比例減圧弁41 および第1リザーバ81 間に設けられ、第3常閉型電磁弁63 は、右前輪用車輪ブレーキB3 および第2リザーバ82 間に設けられ、第4常閉型電磁弁64 は、第2比例減圧弁42 および第2リザーバ82 間に設けられる。
【0014】
このようなブレーキ液圧制御装置3は、各車輪がロックを生じる可能性のない通常ブレーキ時には、マスタシリンダMおよび車輪ブレーキB1 〜B4 間を連通するとともに車輪ブレーキB1 〜B4 およびリザーバ81 ,82 間を遮断する。すなわち各常開型電磁弁51 〜54 が消磁、開弁状態とされるとともに各常閉型電磁弁61 〜64 が消磁、閉弁状態とされ、マスタシリンダMの第1出力ポート11 から出力されるブレーキ液圧は、第1常開型電磁弁51 を介して左前輪用車輪ブレーキB1 に作用するとともに、第2常開型電磁弁52 および第1比例減圧弁41 を介して右後輪用車輪ブレーキB2 に作用する。またマスタシリンダMの第2出力ポート12 から出力されるブレーキ液圧は、第3常開型電磁弁53 を介して右前輪用車輪ブレーキB3 に作用するとともに、第4常開型電磁弁54 および第2比例減圧弁42 を介して左後輪用車輪ブレーキB4 に作用する。
【0015】
上記ブレーキ中に車輪がロック状態に入りそうになったときに、ブレーキ液圧制御装置3は、ロック状態に入りそうになった車輪に対応する部分でマスタシリンダMおよび車輪ブレーキB1 〜B4 間を遮断するとともに車輪ブレーキB1 〜B4 およびリザーバ81 ,82 間を連通する。すなわち第1〜第4常開型電磁弁51 〜54 のうちロック状態に入りそうになった車輪に対応する常開型電磁弁が励磁、閉弁されるとともに、第1〜第4常閉型電磁弁61 〜64 のうち上記車輪に対応する常閉型電磁弁が励磁、開弁される。これにより、ロック状態に入りそうになった車輪のブレーキ液圧の一部が第1リザーバ81 または第2リザーバ82 に吸収され、ロック状態に入りそうになった車輪のブレーキ液圧が減圧されることになる。
【0016】
またブレーキ液圧を一定に保持する際には、ブレーキ液圧制御装置3は、車輪ブレーキB1 〜B4 をマスタシリンダMおよびリザーバ81 ,82 から遮断する状態となる。すなわち常開型電磁弁51 〜54 が励磁、閉弁されるとともに、常閉型電磁弁61 〜64 が消磁、閉弁されることになる。さらにブレーキ液圧を増圧する際には、常開型電磁弁51 〜54 が消磁、開弁状態とされるともに、常閉型電磁弁61 〜64 が消磁、閉弁状態とされればよい。
【0017】
このように各常開型電磁弁51 〜54 および各常閉型電磁弁61 〜64 の消磁・励磁を電子制御ユニット16で制御することにより、車輪をロックさせることなく、効率良く制動することができる。
【0018】
ところで、上述のようなアンチロックブレーキ制御中に、電動モータ12は電子制御ユニット16により作動せしめられる。この電動モータ12の作動に伴って第1および第2ポンプ111 ,112 が駆動されるので、第1および第2リザーバ81 ,82 に吸収されたブレーキ液は、第1および第2ポンプ111 ,112 に吸入され、次いで第1および第2ダンパ141 ,142 側へ吐出され、第1および第2オリフィス151 ,152 を経て第1および第2出力液圧路21 ,22 に還流される。このようなブレーキ液の還流によって、第1および第2リザーバ81 ,82 のブレーキ液の吸収によるブレーキペダルPの踏み込み量の増加を防ぐことができる。しかも第1および第2ポンプ111 ,112 の吐出圧の脈動は第1および第2ダンパ141 ,142 、ならびに第1および第2オリフィス151 ,152 の協働作用により吸収されるため、上記還流によってブレーキペダルPの操作フィーリングが阻害されることはない。
【0019】
図2〜図4において、ブレーキ液圧制御装置3は、たとえばアルミニウム合金等によりブロック状に形成されるハウジング20を備えるものであり、このハウジング20に、第1〜第4常開型電磁弁51 〜54 、第1〜第4常閉型電磁弁61 〜64 、第1〜第4チェック弁71 〜74 、第1および第2リザーバ81 ,82 、第1および第2ダンパ141 ,142 、第1および第2オリフィス151 ,152 、ならびに第1および第2ポンプ111 ,112 が設けられる。またハウジング20の一面には樹脂製部品としてのカバー21が、複数たとえば4個のボルト221 ,221 …により締結され、該カバー21とは反対側でハウジング20の他面に電動モータ12のモータケース23が複数たとえば3個のボルト222 ,222 …により締結される。
【0020】
第1〜第4常開型電磁弁51 〜54 および第1〜第4常閉型電磁弁61 〜64 は、図3で示すように、相互に平行に並んでハウジング20に配設され、第1および第2リザーバ81 ,82 は、第1〜第4常閉型電磁弁61 〜64 に関して第1〜第4常開型電磁弁51 〜54 とは反対側でハウジング20に配設され、第1および第2ダンパ141 ,142 は、第1〜第4常閉型電磁弁61 〜64 および第1および第2リザーバ81 ,82 間に対応する位置でハウジング20に配設される。
【0021】
電動モータ12の出力軸27はハウジング20内まで延出されており、該出力軸27に設けられた偏心軸部27aに装着されるボールベアリング30が、第1および第2ポンプ111 ,112 における各プランジャ31…の先端に当接される。したがって、電動モータ12の作動によって出力軸27が回転すれば、偏心軸部27aを介してボールベアリング30に偏心運動が与えられ、これにより各プランジャ31…にポンプ動作が与えられることになる。
【0022】
図5において、第2常開型電磁弁52 は、弁部5aおよびソレノイド部5bで構成されるものであり、ハウジング20の一面に開口するようにして該ハウジング20に設けられる装着孔32に弁部5aが収容され、ソレノイド部5bはハウジング20の一面から突出する。
【0023】
弁部5aは、磁性金属により段付きの円筒状に形成される弁ハウジング33を備えるものであり、この弁ハウジング33は、ハウジング20に設けられた装着孔32に嵌合される。装着孔32の開口端寄り内面には弁ハウジング33に係合して該弁ハウジング33の装着孔32からの離脱を阻止する止め輪34が嵌着される。また弁ハウジング33の外面の軸方向に間隔をあけた2個所には環状のシール部材35,36が装着される。それらのシール部材35,36間でハウジング20および弁ハウジング33間には環状室37が形成され、該環状室37に臨む部分で弁ハウジング33の外周にはフィルタ38が装着される。
【0024】
ハウジング20には、出力液圧路21 に連なるとともに前記装着孔32の内端に同軸に開口する液圧路39と、前記環状室37に通じるとともに右後輪用車輪ブレーキB2 に接続される液圧路40とが設けられており、チェック弁72 は、前記環状室37および液圧路39間に介在するようにして弁ハウジング33に内蔵される。
【0025】
このような弁部5aは、前記液圧路39,40間の連通・遮断をソレノイド部5bの消磁・励磁に応じて切換えるように作動する。
【0026】
ソレノイド部5bは、前記弁部5aの弁体に連動、連結される可動コア(図示せず)の移動をガイドするようにして前記弁ハウジング33に連設されるガイド筒41と、ガイド筒41を囲繞するボビン42と、該ボビン42に巻装されるコイル43と、コイル43を囲繞する磁路枠44と、磁路枠44およびボビン42間に介装されるコイル状のばね45とを備える。
【0027】
ガイド筒41は、弁ハウジング33の装着孔32への装着状態で、ハウジング20の一面から突出されている。ボビン42は、ガイド筒41を同軸に挿通せしめるようにして合成樹脂により形成されるものであり、該ボビン42にコイル43が巻装される。
【0028】
図6を併せて参照して、磁路枠44は、コイル43において弁ハウジング33側の半部を囲繞する磁路筒46を備える。この磁路筒46の一端には、その一直径線上に位置する一対の連結腕部47,47が一体に連設されており、ボビン42の一端に当接する第1当接板部48が両連結腕部47,47の一端に連設される。すなわち第1当接板部48は、連結腕部47,47の一端に両端部を当接せしめた矩形の磁性金属板の両端部が、連結腕部47,47の一端部両側に一対ずつ設けられたかしめ部47a,47a…をかしめて結合することにより構成されるものであり、ボビン42の一端には第1当接板部48を嵌合せしめる嵌合溝49が該ボビン42の一直径線に沿って設けられる。一方、第1当接板部48の中央部にはガイド筒41を挿通せしめる挿通孔50が設けられる。
【0029】
一方、磁路筒46の他端には、弁ハウジング33の一端に当接するリング板状の第2当接板部51が一体に連設されており、この第2当接板部51をガイド筒41が貫通する。
【0030】
また一端をボビン42の他端に当接せしめたコイル状のばね45の他端が、磁路枠44における第2当接板部51に当接されており、ボビン42は、ハウジング20から離反する側、すなわちハウジング20に締結されているカバー21に当接する側にばね付勢されることになる。
【0031】
他の常開型電磁弁51 ,53 ,54 も、上記常開型電磁弁52 と同様に構成される。
【0032】
常閉型電磁弁62 は、弁部6aおよびソレノイド部6bで構成されるものであり、ハウジング20の一面に開口するようにして該ハウジング20に設けられる装着孔54に弁部6aが収容され、ソレノイド部6bはハウジング20の一面から突出する。
【0033】
弁部6aは、磁性金属により段付きの円筒状に形成される弁ハウジング55を備えるものであり、この弁ハウジング55は、ハウジング20に設けられた装着孔54に嵌合される。装着孔54の開口端寄り内面には弁ハウジング55に係合して該弁ハウジング55の装着孔54からの離脱を阻止する止め輪56が嵌着される。また弁ハウジング55の外面の軸方向に間隔をあけた2個所には環状のシール部材57,58が装着される。それらのシール部材57,58間でハウジング20および弁ハウジング55間には環状室59が形成され、該環状室59に臨む部分で弁ハウジング55の外周にはフィルタ60が装着される。
【0034】
前記環状室59は右後輪用車輪ブレーキB2 に通じるものであり、ハウジング20には、第1リザーバ81 に通じる液圧路61が、装着孔54の内端に開口するようにして設けられる。
【0035】
このような弁部6aは、前記環状室59および液圧路61間の遮断・連通をソレノイド部6bの消磁・励磁に応じて切換えるように作動する。
【0036】
ソレノイド部6bは、前記弁部6bの弁体に連動、連結される可動コア(図示せず)の移動をガイドするようにして前記弁ハウジング55に連設されるガイド筒62と、ガイド筒62を囲繞するボビン42と、該ボビン42に巻装されるコイル43と、コイル43を囲繞する磁路枠44と、磁路枠44およびボビン42間に介装されるコイル状のばね45とを備える。
【0037】
磁路枠44が一端側に備える第1当接板部48はボビン42の一端に当接されており、第1当接板部48の中央部に設けられる挿通孔50にはガイド筒62が挿通される。また磁路枠44が他端側に備える第2当接板部51は弁ハウジング55に当接されており、一端をボビン42に当接せしめたばね45の他端部は第2当接板部51に当接される。これによりボビン42は、ハウジング20から離反する側、すなわちハウジング20に締結されているカバー21に当接する側にばね付勢されることになる。
【0038】
他の常閉型電磁弁61 ,63 ,64 も、上記常閉型電磁弁62 と同様に構成される。
【0039】
再び図5において、カバー21は、前記第1〜第4常開型電磁弁51 〜54 におけるソレノイド部5a…、前記第1〜第4常閉型電磁弁61 〜64 におけるソレノイド部6b…を収納するとともに、第1および第2リザーバ81 ,82 の一部、ならびに第1および第2ダンパ141 ,142 の一部を臨ませる収納室63をハウジング20との間に形成するようにして、ハウジング20の一面に締結されている。しかもカバー21のハウジング20側端縁には、該ハウジング20の一面に弾発的に接触する無端状のシール部材64が装着される。
【0040】
図7および図8を併せて参照して、カバー21は、横断面長方形状の筒形に形成される第1成形体65の一端に、第1成形体65の一端開口部を塞ぐ形状の第2成形体66が振動溶着されて成るものである。しかも第1および第2成形体65,66はともに合成樹脂から成るのであるが、両成形体65,66のうち少なくとも第2成形体66を形成する合成樹脂中には、繊維が混入されている。
【0041】
第1成形体65の一端部には、長方形状の平坦な接合面65aと、該接合面65aの外縁から第2成形体66側に突出して横断面長方形の筒状に形成される第1規制突部65bと、第1規制突部65bの内側面および前記接合面65a間を結ぶ第1ガイド面65cとが設けられる。
【0042】
第2成形体66は、図9で示すように、第2成形体66の内面側に対応した金型85と、第2成形体66の外側面に対応した金型86との間で型成形されるものであり、この第2成形体66の外周部には、相互に平行な一対の長辺部66a1 ,66a1 の両端に両長辺部66a1 ,66a1 と直交する方向で相互に平行に延びる一対の短辺部66a2 ,66a2 の両端が連設されて成る長方形状のフランジ66aが、第1成形体65の接合面65aに対応して形される。
【0043】
また前記フランジ66aの接合面65aに対向する側には、接合面65aに先端部を溶着せしめるようにして第1成形体65側に突出する横断面長方形の筒状に形成される溶着突部66bと、該溶着突部66bの前記接合面65aへの振動溶着完了時に第1成形体65の第1規制突部65bに近接、対向するようにしてフランジ66aの外縁から第1成形体65側に突出する無端状の第2規制突部66cと、前記溶着突部66bの外側面および前記第2規制突部66cの内側面間を結ぶ第2ガイド面66dとが設けられる。
【0044】
しかも第1ガイド面65cは、溶着突部66bの接合面65aへの振動溶着によって生じて図8の矢印で示すように第1規制突部65b側に張出したバリを、第1規制突部65bの内側面に沿って第2規制突部66cの内側面側に案内すべく外方に凸の彎曲面として形成される。また第2ガイド面66dは、第1規制突部65bの内側面から第2規制突部66cの内側面側に案内されたバリを、図8の矢印で示すように、溶着突部66bの外側面側に案内すべく第1ガイド面65cとは反対側に凸の彎曲面として形成される。
【0045】
また相互に平行な一対の長辺部66a1 ,66a1 と、両長辺部66a1 ,66a1 と直交する方向で相互に平行な一対の短辺部66a2 ,66a2 とで構成される前記フランジ66aのうち、少なくとも両長辺部66a1 ,66a1 の前記溶着突起66bとは反対側の面に、それらの長辺部66a1 ,66a1 の長手方向に間隔をあけて複数の凹部87,87…がそれぞれ形成され、第2成形体66の外側面を形成する金型86には、図9で示すように、各凹部87,87…を形成するための突部86a,86a…が一体に設けられている。
【0046】
図10を併せて参照して、カバー21における第1成形体65内の中間部には、第1〜第4常開型電磁弁51 〜54 の各ソレノイド部5b…、ならびに第1〜第4常閉型電磁弁61 〜64 の各ソレノイド部6b…にそれぞれ個別に対応した矩形状の開口部67a,67a…を有する支持板部67が一体に形成されており、該支持板部67のハウジング20側の面には、各ソレノイド部5b…,6b…におけるボビン42…を受ける受け部68,68…が一体に突設される。
【0047】
第1成形体65における一端側内側面には、ハウジング20とは反対側に臨む段部69が全周にわたって形成される。一方、電子制御ユニット16は、電気回路がプリントされる基板70に半導体チップ(図示せず)等が搭載されて成るものであり、周縁部を前記段部69に当接せしめた前記基板70が、カバー21の第1成形体65に締結される。
【0048】
ところで前記支持板部67には、各常開型電磁弁51 〜54 および各常閉型電磁弁61 〜64 に1個ずつ対応する8個の導電金属製の個別バスバー71…と、各常開型電磁弁51 〜54 および各常閉型電磁弁61 〜64 に共通に対応する単一の導電金属製の共通バスバー72とが埋設されており、これらのバスバー71…,72の一端は、第1成形体65に締結された基板70に隣接した位置で第1成形体65の表面に露出して並設される。而して基板70上の電気回路と、前記各個別バスバー71…の一端とは、アルミワイヤーのボンディング等により電気的に接続される。
【0049】
各個別バスバー71…の他端は、外部接続用端子73…として形成されるものであり、各開口部67a…内に1つずつ突出される。また共通バスバー72には、8個の外部接続用端子74…が一体に形成されており、それらの外部接続用端子74…は、前記各外部接続用端子73…にそれぞれ隣接した位置で各開口部67a…内に突出される。すなわち各外部接続用端子73…,74…は、カバー21における第1成形体65から開口部67a…内に一部を突出せしめるようにして第1成形体65に支持されることになる。
【0050】
外部接続用端子73…は、第1平板部73a…と、第1平板部73aの先端に直角に連なる第2平板部73b…とで略L字状に形成されるものであり、第1平板部73aは、常開型電磁弁51 〜54 におけるソレノイド部5b…のボビン42…がばね51…でばね付勢される方向と直交する方向に延びるようにして開口部67a…内に配置される。また外部接続用端子74…も、前記外部接続用端子73…と同様に、第1平板部74a…と、第1平板部74aの先端に直角に連なる第2平板部74b…とで略L字状に形成される。
【0051】
一方、常開型電磁弁51 〜54 および常閉型電磁弁61 〜64 におけるソレノイド部5b…,6b…のボビン42…には、一対ずつのコイル側端子75…の基部が埋設されており、それらのコイル側端子75…には、各コイル43…の両端がそれぞれ巻付け等により接続される。
【0052】
前記外部接続用端子73…,74の第2平板部73b…,74b…には、各コイル側端子75…の先端部がスポット溶接等によって接続されるのであるが、外部接続用端子73…,74および各コイル側端子75…は、第1成形体65への第2成形体66の振動溶着前に、ばね45…によりカバー21に当接する側にばね付勢されているボビン42…が、第1成形体65の受け部68…にそれぞれ当接した状態で、相互に接続される。
【0053】
而して、カバー21における第1成形体65には、各外部接続用端子73…,74…の開口部67a…への突出部分である第1平板部73a…,74a…を、各ソレノイド部5b…,6b…側からそれぞれ支持する複数のリブ76…が一体に形成される。
【0054】
カバー21には、ハウジング20から側方にはみだす突出部21aが一体に形成されており、記突出部21aには、雄型であるコネクタ80が設けられる。
【0055】
このコネクタ80は、第1成形体65の前記突出部21aに対応する部分と一体にして箱形に形成されるコネクタハウジング81と、一端をコネクタハウジング81内に臨ませるようにして大部分が第1成形体65に埋設される複数本のコネクタ端子82…とで構成されるものであり、コネクタ端子82…の他端は、第1成形体65に締結された基板70に隣接した位置で第1成形体65の表面に露出して並設され、基板70上の電気回路と、前記各コネクタ端子82…の他端とは、アルミワイヤーのボンディング等により電気的に接続される。
【0056】
さらに、第1成形体65に締結された基板70に隣接した位置で第1成形体65の表面に一端を露出せしめた一対のモータ用端子83,84が第1成形体65に埋設され、これらのモータ用端子83,84の一端は基板70上の電気回路にアルミワイヤーのボンディング等により電気的に接続され、各モータ用端子83,84の他端は電動モータ12に接続される。
【0057】
次にこの実施例の作用について説明すると、弁部5a…,6a…がハウジング20に収容される常開型電磁弁51 〜54 および常閉型電磁弁61 〜64 のソレノイド部5b…,6b…は、ハウジング20ならびに該ハウジング20に締結されるカバー21間に形成される収納室63に収納されており、それらのソレノイド部5b…,6b…が備えるボビン42…は、軸方向に制限された範囲での移動が可能である。またカバー21における第1成形体65から開口部67a…内に一部を突出せしめるようにして、各外部接続用端子73…,74…が第1成形体65に支持されており、各コイル43…の両端にそれぞれ連なって各ボビン42…から突出される一対ずつ複数組のコイル側端子75…が、外部接続用端子73…,74にスポット溶接等によって接続される。
【0058】
したがって車両の振動によりボビン42…が振動すると、外部接続用端子73…,74…に曲げ力が作用することになる。しかもコイル側端子75…および外部接続用端子73…,74…の接続作業性を向上させるためには、外部接続用端子73…,74…のカバー21からの突出量を比較的大きく設定する必要があり、そのようにすると、前記ボビン42…の振動により外部接続用端子73…,74…が大きく曲り易くなる。
【0059】
しかるに、各コイル側端子75…は、ばね45…でハウジング20から離反する側にばね付勢されている各ボビン42…を、ハウジング20に締結されるカバー21の受け部68…に当接せしめた状態で、各外部接続用端子73…,74…に接続されている。このためボビン42…のハウジング20から離反する方向の移動は、カバー21の受け部68…にボビン42…が当接することで規制されることになり、ボビン42…の振動により外部接続用端子73…,74…にはハウジング20に近接する側の曲げ力だけが作用することになる。
【0060】
しかも外部接続用端子73…,74…のカバー21からの突出部分である第1平板部73a…,74a…を各ソレノイド部5b…,6b…側から支持する複数のリブ76…が、カバー21の第1成形体65に一体に形成されている。したがって、車両の振動に伴ってボビン42…から外部接続用端子73…,74…に作用するハウジング20側への曲げ力に耐えるように、リブ76…で外部接続用端子73…,74…を補強することができ、外部接続用端子73…,74…の突出量が比較的大きく設定されていても、外部接続用端子73…,74…の曲りを防止することができ、外部接続用端子73…,74…の曲りによるボビン42…の傾きが生じるのを回避して、各電磁弁51 〜54 ,61 〜64 で所期の性能を維持することができる。
【0061】
またカバー21は、第2成形体66における溶着突部66bの先端部を第1成形体65の接合面65aに圧接した状態で、両成形体61,62が高速で相対振動せしめられることにより、溶着突部66bの先端と接合面65aとの間に生じる摩擦熱により溶着突部66bの先端部が接合面65aに振動溶着されることにより構成されるのであるが、その振動溶着時に、溶着突部66bの先端部および接合面65aの接触部で生じたバリのうち外方側に張出す部分については、第1ガイド面65cにより第1規制突部65bの内側面に沿って第2規制突部66c側に案内されることになる。また第1規制突部65bの内側面から第2規制突部66cの内側面側に案内されたバリは第2ガイド面66dにより溶着突部66bの外側面側に案内される。
【0062】
したがって、バリが第1および第2規制突部65b,66c間の間隙から外方に突出してしまうことが回避され、接合面65a、第1規制突部65b、第2規制突部66cおよび溶着突部66bで形成される空間にバリが収容されることになり、カバー21の外面にバリが露出してしまうことを確実に防止して、カバー21の商品性向上に寄与することができる。
【0063】
さらに第2成形体66が備えるフランジ66aのうち、少なくとも両長辺部66a1 ,66a1 の溶着突起66bとは反対側の面に、それらの長辺部66a1 ,66a1 の長手方向に間隔をあけて複数の凹部87,87…がそれぞれ形成されている。したがってフランジ66aからの溶着突起66bの突出部が第2成形体66の他の部分よりも著しく厚肉となるのを回避し、第2成形体66の厚みを極力均等化することが可能となり、型成形時に第2成形体66に引けや反りが生じるのを防止することができる。しかも第2成形体66を成形するための金型86には、各凹部87,87…を形成するための複数の突部86a,86a…が設けられることになり、それらの突部86a,86a…により、合成樹脂に混入されている繊維の方向が、図9の矢印で示すように乱されるので、繊維の配向方向がフランジ66aの長辺部66a1 ,66a1 の長手方向に揃ってしまうことはなく、これによりフランジ66aの反りをより効果的に防止することができる。
【0064】
しかも各凹部87,87…間の隔壁は、フランジ66aにおける長辺部66a1 ,66a1 の補強機能、ならびに振動溶着時にフランジ66aに作用する圧力によるフランジ66aの変形を防止する機能を果すことができる。すなわちフランジ66aからの溶着突起66bの突出部における肉厚均等化を果すためには、両長辺部66a1 ,66a1 の溶着突起66bとは反対側の面に、それらの長辺部66a1 ,66a1 の長手方向に延びる1条ずつの溝が設けられていてもよいのであるが、そのような溝では、フランジ66aにおける長辺部66a1 ,66a1 の補強機能は得られず、振動溶着時にフランジ66aに作用する圧力によるフランジ66aの変形を防止する機能も得られない。
【0065】
以上、本発明の実施例を詳述したが、本発明は上記実施例に限定されるものではなく、特許請求の範囲に記載された本発明を逸脱することなく種々の設計変更を行なうことが可能である。
【0066】
たとえば上記実施例では、車両用ブレーキ液圧制御装置のカバー21に本発明を適用した場合について説明したが、本発明は、そのようなカバー21に限らず、合成樹脂から成る第1および第2成形体が振動溶着されて成る樹脂製部品に広く適用することができる。
【0067】
【発明の効果】
以上のように本発明によれば、第2成形体が備えるフランジのうち少なくとも両長辺部の前記溶着突起とは反対側の面に形成された複数の凹部により、溶着突起の突出部が第2成形体の他の部分よりも著しく厚肉となるのを回避し、第2成形体の厚みを極力均等化して、型成形時に第2成形体に引けや反りが生じるのを防止することができる。また各凹部を形成するために金型に設けられる複数の突部により、合成樹脂に混入されている繊維の方向が乱されるので、繊維の配向方向がフランジの長辺部の長手方向に揃ってしまうことはなく、フランジの反りをより効果的に防止することができる。しかも各凹部間の隔壁は、フランジの補強機能ならびに振動溶着時のフランジの変形を防止する機能を果すことができる。
【図面の簡単な説明】
【図1】乗用車両用ブレーキ装置のブレーキ液圧回路図である。
【図2】ブレーキ液圧制御装置の一部切欠き側面図である。
【図3】図2の3矢視図である。
【図4】図2の4矢視図である。
【図5】図3の5−5線拡大断面図である。
【図6】磁路枠の斜視図である。
【図7】成形前のカバーの要部拡大縦断面図である。
【図8】成形後のカバーの図7に対応した断面図である。
【図9】第2成形体成形用金型装置の横断面図である。
【図10】カバーの第1成形体を図5の10−10線矢視方向から見た図である。
【符号の説明】
21・・・樹脂製部品としてのカバー
65・・・第1成形体
65a・・・接合面
66・・・第2成形体
66a・・・フランジ
66a1 ・・・長辺部
66a2 ・・・短辺部
66b・・・溶着突起
87・・・凹部
[0001]
BACKGROUND OF THE INVENTION
According to the present invention, a pair of long sides that are rectangular parallel to each other are formed on the first molded body made of synthetic resin, and extend in parallel to each other in a direction perpendicular to both long sides. A second molded body made of a fiber-mixed synthetic resin having a flange formed by connecting both ends of a short side portion and a welding projection formed in a cylindrical shape having a rectangular cross section and projecting from the flange, the welding The present invention relates to a resin part that is bonded to a first molded body by vibration welding of a protrusion to the joint surface.
[0002]
[Prior art]
Conventionally, such resin parts are already known, for example, in JP-A-7-266425.
[0003]
[Problems to be solved by the invention]
However, when the second molded body is molded, the protruding portion of the welding projection from the flange is thicker than the other part of the second molded body, and the shrinkage caused by the uneven thickness is caused. It may occur or the flange may warp in a plane orthogonal to the pair of short sides. In addition, since the second molded body is made of a fiber-mixed synthetic resin, if the orientation direction of the fibers is aligned with the longitudinal direction of the long side portion of the flange, the warping of the flange is promoted. . Thus, when the above-described shrinkage or warpage occurs in the second molded body, the entire resin part constituted by vibration welding of the second molded body to the first molded body will be distorted. , Merchantability is reduced.
[0004]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a resinous part that prevents the occurrence of shrinkage and warpage during the molding of the second molded body as much as possible and has improved merchantability. .
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a first molded body made of a synthetic resin, in which a rectangular joining surface is formed, and both ends of a pair of long side portions parallel to each other are orthogonal to both long side portions. A flange formed by connecting both ends of a pair of short sides extending in parallel with each other, and a welding projection formed in a cylindrical shape having a rectangular cross section and projecting from the flange, and made of a fiber-mixed synthetic resin. The second molded body is coupled to the first molded body by vibration welding to the joint surface of the welding projection. Was In the resin part, at least one of the long side portions of the flange opposite to the welding projections has a plurality of concave portions spaced apart in the longitudinal direction of the long side portions. Formed with intervening partition walls Was It is characterized by that.
[0006]
According to this structure, it forms in the surface on the opposite side to the said welding protrusion of at least both long side parts among the flanges with which a 2nd molded object is equipped. Was By the plurality of recesses, it is possible to avoid the protrusion of the welding projection from the flange from becoming significantly thicker than the other part of the second molded body, and to make the thickness of the second molded body as uniform as possible. It is possible to prevent the second molded body from being drawn or warped during mold forming. In addition, the mold for forming the second molded body is provided with a plurality of protrusions for forming each recess, and the direction of the fibers mixed in the synthetic resin is determined by the protrusions. Since the fiber is disturbed, the orientation direction of the fibers is not aligned with the longitudinal direction of the long side portion of the flange, whereby the warpage of the flange can be more effectively prevented. And the partition between each recessed part can fulfill the function which prevents the deformation | transformation of the flange by the pressure which acts on the flange at the time of vibration welding, and the flange. That is, in order to achieve uniform thickness at the projections of the welding projections from the flange, one long groove extending in the longitudinal direction of the long side portions on the surface opposite to the welding projections of both long side portions. However, in such a groove, the function of reinforcing the long side portion of the flange cannot be obtained, and the function of preventing deformation of the flange due to pressure acting on the flange during vibration welding cannot be obtained. However, by interposing a partition wall between the plurality of recesses, it is possible to provide a reinforcing function and a deformation preventing function while equalizing the thickness as much as possible.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.
[0008]
1 to 10 show an embodiment of the present invention, FIG. 1 is a brake hydraulic circuit diagram of a passenger vehicle brake device, FIG. 2 is a partially cutaway side view of a brake hydraulic pressure control device, and FIG. 2 is a view taken along arrow 3 in FIG. 2, FIG. 4 is a view taken along arrow 4 in FIG. 2, FIG. 5 is an enlarged sectional view taken along line 5-5 in FIG. FIG. 8 is a cross-sectional view corresponding to FIG. 7 of the cover after molding, FIG. 9 is a cross-sectional view of the second molded body molding die device, and FIG. 10 is the first molding of the cover. It is the figure which looked at the body from the 10-10 line arrow direction of FIG.
[0009]
First, in FIG. 1, a tandem master cylinder M includes first and second output ports 1 that generate brake fluid pressure in accordance with a pedaling force applied to a brake pedal P by a vehicle driver. 1 , 1 2 With left front wheel brake B 1 , Right rear wheel brake B 2 , Right front wheel brake B Three And left rear wheel brake B Four And the first and second output ports 1 1 , 1 2 First and second output hydraulic pressure paths 2 individually connected to each other 1 , 2 2 The brake fluid pressure control device 3 is provided between the brake fluid pressure control device 3 and the right and left rear wheel brake B. 2 , B Four In between, the first and second proportional pressure reducing valves 4 1 , 4 2 Are interposed.
[0010]
Brake fluid pressure control device 3 is a front left wheel brake B 1 , Right rear wheel brake B 2 , Right front wheel brake B Three And left rear wheel brake B Four The first, second, third and fourth normally open solenoid valves 5 individually corresponding to 1 ~ 5 Four And each normally open solenoid valve 5 1 ~ 5 Four First, second, third and fourth check valves 7 connected in parallel to each other 1 ~ 7 Four And each wheel brake B 1 ~ B Four 1st, 2nd, 3rd and 4th normally closed solenoid valves 6 corresponding individually to 1 ~ 6 Four And first and second output hydraulic pressure paths 2 1 , 2 2 First and second reservoirs 8 individually corresponding to each 1 , 8 2 And the first and second reservoirs 8 1 , 8 2 Intake valve 10 1 , 10 2 Plunger-type first and second pumps 11 connected to each other 1 , 11 2 And both pumps 11 1 , 11 2 One common electric motor 12 for driving the first and second pumps 11 1 , 11 2 Discharge valve 13 1 , 13 2 The first and second dampers 14 are connected to each other via 1 , 14 2 And the first and second output hydraulic pressure paths 2 1 , 2 2 And the first and second dampers 14 1 , 14 2 And the first and second orifices 15 respectively interposed between them 1 , 15 2 And each normally open solenoid valve 5 1 ~ 5 Four Each normally closed solenoid valve 6 1 ~ 6 Four And an electronic control unit 16 that controls the operation of the electric motor 12.
[0011]
First normally open solenoid valve 5 1 Is the first output hydraulic pressure path 2 1 And front left wheel brake B 1 The second normally open solenoid valve 5 provided between 2 Is the first output hydraulic pressure path 2 1 And the first proportional pressure reducing valve 4 1 3rd normally open type solenoid valve 5 provided between Three Is the second output hydraulic path 2 2 And right front wheel brake B Three 4th normally open type solenoid valve 5 provided in between Four Is the second output hydraulic path 2 2 And the second proportional pressure reducing valve 4 2 Between.
[0012]
The first to fourth check valves 7 1 ~ 7 Four Is the corresponding wheel brake B 1 ~ B Four Each normally open solenoid valve 5 so as to allow the flow of brake fluid from the engine to the master cylinder M. 1 ~ 5 Four Connected in parallel.
[0013]
First normally closed solenoid valve 6 1 Is the front left wheel brake B 1 And the first reservoir 8 1 The second normally closed solenoid valve 6 provided in between 2 Is the first proportional pressure reducing valve 4 1 And the first reservoir 8 1 A third normally closed solenoid valve 6 provided in between Three Is the right front wheel brake B Three And the second reservoir 8 2 A fourth normally closed solenoid valve 6 provided in between Four Is the second proportional pressure reducing valve 4 2 And the second reservoir 8 2 Between.
[0014]
Such a brake fluid pressure control device 3 is configured so that the master cylinder M and the wheel brake B can be used during normal braking in which each wheel is not likely to be locked. 1 ~ B Four Wheel brake B 1 ~ B Four And reservoir 8 1 , 8 2 Block the gap. That is, each normally open solenoid valve 5 1 ~ 5 Four Is demagnetized and opened, and each normally closed solenoid valve 6 1 ~ 6 Four Is demagnetized and closed, and the first output port 1 of the master cylinder M 1 The brake hydraulic pressure output from the first normally open solenoid valve 5 1 Through left front wheel brake B 1 And the second normally open solenoid valve 5 2 And the first proportional pressure reducing valve 4 1 Via right rear wheel brake B 2 Act on. The second output port 1 of the master cylinder M 2 The brake hydraulic pressure output from the third normally open solenoid valve 5 Three Through right front wheel brake B Three And the fourth normally open solenoid valve 5 Four And the second proportional pressure reducing valve 4 2 Through left rear wheel brake B Four Act on.
[0015]
When the wheel is about to enter the locked state during the brake, the brake hydraulic pressure control device 3 controls the master cylinder M and the wheel brake B at the portion corresponding to the wheel about to enter the locked state. 1 ~ B Four Wheel brake B 1 ~ B Four And reservoir 8 1 , 8 2 Communicate between them. That is, the first to fourth normally open solenoid valves 5 1 ~ 5 Four The normally open solenoid valve corresponding to the wheel that is about to enter the locked state is excited and closed, and the first to fourth normally closed solenoid valves 6 1 ~ 6 Four The normally closed solenoid valve corresponding to the wheel is excited and opened. As a result, a part of the brake fluid pressure of the wheel which is about to enter the locked state is transferred to the first reservoir 8. 1 Or the second reservoir 8 2 The brake fluid pressure of the wheel that has been absorbed by the vehicle and is about to enter the locked state is reduced.
[0016]
When the brake fluid pressure is kept constant, the brake fluid pressure control device 3 1 ~ B Four Master cylinder M and reservoir 8 1 , 8 2 It will be in the state to cut off from. That is, the normally open solenoid valve 5 1 ~ 5 Four Is excited and closed, and the normally closed solenoid valve 6 1 ~ 6 Four Will be demagnetized and closed. When the brake fluid pressure is further increased, the normally open solenoid valve 5 1 ~ 5 Four Is demagnetized and opened, and the normally closed solenoid valve 6 1 ~ 6 Four May be demagnetized and closed.
[0017]
Thus, each normally open type solenoid valve 5 1 ~ 5 Four And each normally closed solenoid valve 6 1 ~ 6 Four By controlling the demagnetization / excitation of the motor by the electronic control unit 16, it is possible to brake efficiently without locking the wheels.
[0018]
Incidentally, the electric motor 12 is operated by the electronic control unit 16 during the antilock brake control as described above. As the electric motor 12 operates, the first and second pumps 11 1 , 11 2 Is driven, the first and second reservoirs 8 1 , 8 2 The brake fluid absorbed by the first and second pumps 11 1 , 11 2 And then the first and second dampers 14 1 , 14 2 The first and second orifices 15 are discharged to the side. 1 , 15 2 1st and 2nd output hydraulic pressure paths 2 1 , 2 2 To reflux. By such a recirculation of the brake fluid, the first and second reservoirs 8 1 , 8 2 It is possible to prevent an increase in the depression amount of the brake pedal P due to the absorption of the brake fluid. Moreover, the first and second pumps 11 1 , 11 2 The pulsation of the discharge pressure of the first and second dampers 14 1 , 14 2 , And first and second orifices 15 1 , 15 2 Therefore, the operation feeling of the brake pedal P is not hindered by the reflux.
[0019]
2 to 4, the brake hydraulic pressure control device 3 includes a housing 20 formed in a block shape by, for example, an aluminum alloy, and the first to fourth normally open electromagnetic valves 5 are provided in the housing 20. 1 ~ 5 Four , First to fourth normally closed solenoid valves 6 1 ~ 6 Four , First to fourth check valves 7 1 ~ 7 Four , First and second reservoirs 8 1 , 8 2 , First and second dampers 14 1 , 14 2 , First and second orifices 15 1 , 15 2 , And first and second pumps 11 1 , 11 2 Is provided. A cover 21 as a resin part is provided on one surface of the housing 20, for example, a plurality of bolts 22. 1 , 22 1 The motor case 23 of the electric motor 12 is attached to the other surface of the housing 20 on the side opposite to the cover 21 by a plurality of, for example, three bolts 22. 2 , 22 2 It is concluded by ...
[0020]
First to fourth normally open solenoid valves 5 1 ~ 5 Four And the first to fourth normally closed solenoid valves 6 1 ~ 6 Four As shown in FIG. 3, the first and second reservoirs 8 are arranged in the housing 20 in parallel with each other. 1 , 8 2 Are the first to fourth normally closed solenoid valves 6 1 ~ 6 Four 1 to 4 normally open solenoid valve 5 1 ~ 5 Four The first and second dampers 14 are disposed in the housing 20 on the opposite side to the first and second dampers 14. 1 , 14 2 Are the first to fourth normally closed solenoid valves 6 1 ~ 6 Four And first and second reservoirs 8 1 , 8 2 It arrange | positions in the housing 20 in the position corresponding to between.
[0021]
An output shaft 27 of the electric motor 12 extends into the housing 20, and a ball bearing 30 attached to an eccentric shaft portion 27 a provided on the output shaft 27 is used for the first and second pumps 11. 1 , 11 2 Are brought into contact with the tips of the plungers 31. Therefore, if the output shaft 27 rotates by the operation of the electric motor 12, an eccentric motion is given to the ball bearing 30 via the eccentric shaft portion 27a, and thereby a pump operation is given to each plunger 31.
[0022]
In FIG. 5, the second normally open solenoid valve 5 2 Is constituted by a valve portion 5a and a solenoid portion 5b. The valve portion 5a is accommodated in a mounting hole 32 provided in the housing 20 so as to open on one surface of the housing 20, and the solenoid portion 5b is formed in the housing 20. Protrudes from one side.
[0023]
The valve portion 5 a includes a valve housing 33 formed of a magnetic metal in a stepped cylindrical shape, and the valve housing 33 is fitted into a mounting hole 32 provided in the housing 20. A retaining ring 34 that engages with the valve housing 33 and prevents the valve housing 33 from being detached from the mounting hole 32 is fitted to the inner surface near the opening end of the mounting hole 32. In addition, annular seal members 35 and 36 are mounted at two locations spaced apart in the axial direction on the outer surface of the valve housing 33. An annular chamber 37 is formed between the seal members 35 and 36 between the housing 20 and the valve housing 33, and a filter 38 is mounted on the outer periphery of the valve housing 33 at a portion facing the annular chamber 37.
[0024]
The housing 20 includes an output hydraulic pressure path 2. 1 And a hydraulic pressure passage 39 that opens coaxially at the inner end of the mounting hole 32, and communicates with the annular chamber 37 and at the same time a wheel brake B for the right rear wheel. 2 And a hydraulic pressure path 40 connected to the check valve 7. 2 Is incorporated in the valve housing 33 so as to be interposed between the annular chamber 37 and the hydraulic pressure passage 39.
[0025]
Such a valve portion 5a operates so as to switch communication / blockage between the hydraulic pressure paths 39, 40 in accordance with demagnetization / excitation of the solenoid portion 5b.
[0026]
The solenoid part 5b includes a guide cylinder 41 connected to the valve housing 33 so as to guide the movement of a movable core (not shown) linked and connected to the valve body of the valve part 5a, and a guide cylinder 41. A coil 43 wound around the bobbin 42, a magnetic path frame 44 surrounding the coil 43, and a coiled spring 45 interposed between the magnetic path frame 44 and the bobbin 42. Prepare.
[0027]
The guide cylinder 41 protrudes from one surface of the housing 20 in a mounted state in the mounting hole 32 of the valve housing 33. The bobbin 42 is formed of synthetic resin so that the guide tube 41 can be coaxially inserted, and a coil 43 is wound around the bobbin 42.
[0028]
Referring also to FIG. 6, the magnetic path frame 44 includes a magnetic path cylinder 46 that surrounds a half of the coil 43 on the valve housing 33 side. A pair of connecting arm portions 47, 47 located on one diameter line are integrally connected to one end of the magnetic path tube 46, and a first contact plate portion 48 that contacts one end of the bobbin 42 is provided on both ends. The connecting arm portions 47 are connected to one end of the 47. That is, the first abutting plate portion 48 is provided with a pair of both ends of a rectangular magnetic metal plate with both ends abutting against one end of the connecting arm portions 47, 47 on both sides of one end portion of the connecting arm portions 47, 47. The caulking portions 47a, 47a,... Are joined by caulking, and one end of the bobbin 42 has a fitting groove 49 into which the first abutting plate portion 48 is fitted. Provided along the line. On the other hand, an insertion hole 50 through which the guide tube 41 is inserted is provided at the center of the first contact plate portion 48.
[0029]
On the other hand, a ring plate-like second contact plate portion 51 that contacts one end of the valve housing 33 is integrally connected to the other end of the magnetic path tube 46, and the second contact plate portion 51 is guided as a guide. The cylinder 41 penetrates.
[0030]
The other end of the coiled spring 45 with one end abutting against the other end of the bobbin 42 is abutted against the second abutting plate portion 51 of the magnetic path frame 44, and the bobbin 42 is separated from the housing 20. The spring is urged to the side that contacts the cover 21 fastened to the housing 20.
[0031]
Other normally open solenoid valve 5 1 , 5 Three , 5 Four The normally open solenoid valve 5 2 It is configured in the same way.
[0032]
Normally closed solenoid valve 6 2 Is constituted by a valve portion 6a and a solenoid portion 6b. The valve portion 6a is accommodated in a mounting hole 54 provided in the housing 20 so as to open on one surface of the housing 20, and the solenoid portion 6b is provided in the housing 20. Protrudes from one side.
[0033]
The valve portion 6 a includes a valve housing 55 formed in a stepped cylindrical shape with magnetic metal, and the valve housing 55 is fitted into a mounting hole 54 provided in the housing 20. A retaining ring 56 that engages with the valve housing 55 and prevents the valve housing 55 from being detached from the mounting hole 54 is fitted to the inner surface near the opening end of the mounting hole 54. In addition, annular seal members 57 and 58 are mounted at two locations spaced apart in the axial direction on the outer surface of the valve housing 55. An annular chamber 59 is formed between the seal member 57, 58 between the housing 20 and the valve housing 55, and a filter 60 is mounted on the outer periphery of the valve housing 55 at a portion facing the annular chamber 59.
[0034]
The annular chamber 59 is a wheel brake B for the right rear wheel. 2 The housing 20 includes a first reservoir 8. 1 A hydraulic path 61 leading to is provided so as to open at the inner end of the mounting hole 54.
[0035]
Such a valve part 6a operates so as to switch the interruption / communication between the annular chamber 59 and the hydraulic pressure path 61 in accordance with the demagnetization / excitation of the solenoid part 6b.
[0036]
The solenoid part 6b includes a guide cylinder 62 connected to the valve housing 55 so as to guide the movement of a movable core (not shown) linked and connected to the valve body of the valve part 6b, and a guide cylinder 62. A coil 43 wound around the bobbin 42, a magnetic path frame 44 surrounding the coil 43, and a coiled spring 45 interposed between the magnetic path frame 44 and the bobbin 42. Prepare.
[0037]
The first contact plate portion 48 provided on one end side of the magnetic path frame 44 is in contact with one end of the bobbin 42, and a guide tube 62 is inserted in the insertion hole 50 provided in the central portion of the first contact plate portion 48. It is inserted. The second contact plate portion 51 provided on the other end side of the magnetic path frame 44 is in contact with the valve housing 55, and the other end portion of the spring 45 having one end in contact with the bobbin 42 is the second contact plate portion. 51 abuts. As a result, the bobbin 42 is spring-biased on the side away from the housing 20, that is, the side in contact with the cover 21 fastened to the housing 20.
[0038]
Other normally closed solenoid valve 6 1 , 6 Three , 6 Four Also, the normally closed solenoid valve 6 2 It is configured in the same way.
[0039]
In FIG. 5 again, the cover 21 includes the first to fourth normally open solenoid valves 5. 1 ~ 5 Four In the first to fourth normally closed solenoid valves 6. 1 ~ 6 Four In which the first and second reservoirs 8 are housed. 1 , 8 2 Part of the first and second dampers 14 1 , 14 2 A housing chamber 63 that faces a part of the housing 20 is formed between the housing 20 and the housing 20. Moreover, an endless seal member 64 that elastically contacts one surface of the housing 20 is attached to the edge of the cover 21 on the housing 20 side.
[0040]
Referring to FIGS. 7 and 8 together, the cover 21 has a first shape in which one end of the first molded body 65 is closed at one end of the first molded body 65 formed in a cylindrical shape having a rectangular cross section. Two molded bodies 66 are formed by vibration welding. Moreover, the first and second molded bodies 65 and 66 are both made of synthetic resin, but fibers are mixed in at least the synthetic resin forming the second molded body 66 of the molded bodies 65 and 66. .
[0041]
At one end of the first molded body 65, a rectangular flat joint surface 65a and a first restriction formed in a cylindrical shape with a rectangular cross section projecting from the outer edge of the joint surface 65a to the second molded body 66 side. A protrusion 65b and a first guide surface 65c that connects between the inner surface of the first restriction protrusion 65b and the joint surface 65a are provided.
[0042]
As shown in FIG. 9, the second molded body 66 is molded between a mold 85 corresponding to the inner surface side of the second molded body 66 and a mold 86 corresponding to the outer surface of the second molded body 66. In the outer peripheral portion of the second molded body 66, a pair of long side portions 66a parallel to each other are provided. 1 66a 1 Both long sides 66a at both ends of the 1 66a 1 A pair of short sides 66a extending in parallel to each other in a direction orthogonal to 2 66a 2 A rectangular flange 66 a formed by connecting both ends thereof is formed corresponding to the joint surface 65 a of the first molded body 65.
[0043]
Further, on the side of the flange 66a facing the joining surface 65a, a welding projection 66b formed in a cylindrical shape with a rectangular cross section protruding toward the first molded body 65 so that the tip end is welded to the joining surface 65a. And when the vibration welding of the welding projection 66b to the joint surface 65a is completed, the first molding 65 is moved from the outer edge of the flange 66a toward the first molding 65 so as to be close to and face the first regulation projection 65b of the first molding 65. A protruding endless second restricting protrusion 66c and a second guide surface 66d connecting the outer surface of the welding protrusion 66b and the inner surface of the second restricting protrusion 66c are provided.
[0044]
Moreover, the first guide surface 65c is formed by vibration welding to the joint surface 65a of the welding projection 66b, and the burr protruding toward the first regulation projection 65b as shown by the arrow in FIG. In order to guide to the inner surface side of the second restricting protrusion 66c along the inner surface, a convex curved surface is formed outward. Further, the second guide surface 66d has a burr guided from the inner surface of the first restricting protrusion 65b to the inner surface of the second restricting protrusion 66c as shown by the arrow in FIG. A convex curved surface is formed on the side opposite to the first guide surface 65c to be guided to the side surface side.
[0045]
A pair of long side portions 66a parallel to each other 1 66a 1 And both long side portions 66a 1 66a 1 A pair of short side portions 66a parallel to each other in a direction orthogonal to 2 66a 2 At least both long side portions 66a of the flange 66a. 1 66a 1 On the surface opposite to the welding projection 66b of the long side portion 66a. 1 66a 1 Are formed in the mold 86 forming the outer surface of the second molded body 66, as shown in FIG. 9, with the recesses 87, 87. Are integrally provided with protrusions 86a, 86a,.
[0046]
Referring also to FIG. 10, the first to fourth normally open solenoid valves 5 are provided in the middle portion of the cover 21 in the first molded body 65. 1 ~ 5 Four And the first to fourth normally closed solenoid valves 6. 1 ~ 6 Four .. Are integrally formed with a rectangular opening 67a, 67a... Individually corresponding to each solenoid portion 6b... On the surface of the support plate 67 on the housing 20 side. Receiving portions 68, 68, for receiving bobbins 42 in the solenoid portions 5b, 6b, ... are integrally projected.
[0047]
A stepped portion 69 facing the opposite side of the housing 20 is formed on the inner surface of the first molded body 65 on the one end side over the entire circumference. On the other hand, the electronic control unit 16 is formed by mounting a semiconductor chip (not shown) or the like on a substrate 70 on which an electric circuit is printed, and the substrate 70 having a peripheral portion abutted against the stepped portion 69 is provided. The first molded body 65 of the cover 21 is fastened.
[0048]
By the way, the support plate 67 is provided with each normally open type electromagnetic valve 5. 1 ~ 5 Four And each normally closed solenoid valve 6 1 ~ 6 Four 8 conductive metal individual bus bars 71 corresponding to each one, and each normally open solenoid valve 5. 1 ~ 5 Four And each normally closed solenoid valve 6 1 ~ 6 Four And a common bus bar 72 made of a conductive metal corresponding to each of the first and second bus bars 71..., 72 at one end thereof adjacent to the substrate 70 fastened to the first molded body 65. The one molded body 65 is exposed and arranged side by side. Thus, the electrical circuit on the substrate 70 and one end of each of the individual bus bars 71 are electrically connected by aluminum wire bonding or the like.
[0049]
The other end of each individual bus bar 71 is formed as an external connection terminal 73, and protrudes one by one into each opening 67a. The common bus bar 72 is integrally formed with eight external connection terminals 74. The external connection terminals 74 are open at positions adjacent to the external connection terminals 73. Projected into the portion 67a. That is, each of the external connection terminals 73, 74,... Is supported by the first molded body 65 so as to partially protrude from the first molded body 65 in the cover 21 into the opening 67a.
[0050]
The external connection terminals 73 are formed in a substantially L shape by the first flat plate portion 73a and the second flat plate portion 73b continuous at right angles to the tip of the first flat plate portion 73a. The part 73a is a normally open solenoid valve 5 1 ~ 5 Four Are arranged in the openings 67a so that the bobbins 42 of the solenoid parts 5b extend in a direction perpendicular to the direction of being biased by the springs 51. Similarly to the external connection terminals 73, the external connection terminals 74 are substantially L-shaped by first flat plate portions 74a and second flat plate portions 74b that are perpendicular to the tip of the first flat plate portion 74a. It is formed in a shape.
[0051]
On the other hand, normally open solenoid valve 5 1 ~ 5 Four And normally closed solenoid valve 6 1 ~ 6 Four The base portions of the pair of coil side terminals 75 are embedded in the bobbins 42 of the solenoid portions 5b, 6b, and the ends of the coils 43 are wound around the coil side terminals 75, respectively. Connected by attaching.
[0052]
The distal end portions of the coil side terminals 75 are connected to the second flat plate portions 73b of the external connection terminals 73, 74 by spot welding or the like, but the external connection terminals 73,. 74 and the coil-side terminals 75... Are bobbins 42 that are spring-biased by the spring 45... To the side in contact with the cover 21 before the second molded body 66 is welded to the first molded body 65. The first molded bodies 65 are connected to each other in contact with the receiving portions 68 of the first molded body 65.
[0053]
Thus, the first molded body 65 in the cover 21 is provided with first flat plate portions 73a, 74a, which are protruding portions of the external connection terminals 73, 74,. A plurality of ribs 76, which are respectively supported from the 5b..., 6b.
[0054]
The cover 21 is integrally formed with a protruding portion 21a that protrudes laterally from the housing 20, and the protruding portion 21a is provided with a male connector 80.
[0055]
The connector 80 includes a connector housing 81 formed in a box shape integrally with a portion corresponding to the protruding portion 21 a of the first molded body 65, and most of the connector 80 has a first end facing the connector housing 81. A plurality of connector terminals 82 embedded in one molded body 65, and the other ends of the connector terminals 82 are adjacent to the substrate 70 fastened to the first molded body 65. The first molded body 65 is exposed and arranged in parallel, and the electrical circuit on the substrate 70 and the other ends of the connector terminals 82 are electrically connected by bonding of aluminum wires or the like.
[0056]
Furthermore, a pair of motor terminals 83 and 84 having one end exposed on the surface of the first molded body 65 at a position adjacent to the substrate 70 fastened to the first molded body 65 are embedded in the first molded body 65, and these One end of each of the motor terminals 83 and 84 is electrically connected to an electric circuit on the substrate 70 by bonding of an aluminum wire or the like, and the other end of each of the motor terminals 83 and 84 is connected to the electric motor 12.
[0057]
Next, the operation of this embodiment will be described. The normally open solenoid valve 5 in which the valve portions 5a... 6a. 1 ~ 5 Four And normally closed solenoid valve 6 1 ~ 6 Four Are housed in a housing chamber 63 formed between the housing 20 and the cover 21 fastened to the housing 20, and the bobbins 42 included in the solenoid portions 5b, 6b,. Can move within a limited range in the axial direction. Further, the external connection terminals 73, 74,... Are supported by the first molded body 65 so as to partially protrude from the first molded body 65 of the cover 21 into the openings 67a. A plurality of pairs of coil-side terminals 75 that are connected to both ends of the bobbin 42 are connected to the external connection terminals 73 and 74 by spot welding or the like.
[0058]
Therefore, when the bobbins 42 vibrate due to the vibration of the vehicle, a bending force acts on the external connection terminals 73. In addition, in order to improve the connection workability of the coil side terminals 75... And the external connection terminals 73... 74 ..., it is necessary to set the protrusion amount of the external connection terminals 73. In such a case, the external connection terminals 73..., 74.
[0059]
However, the coil-side terminals 75 are made to abut the bobbins 42 that are spring-biased by the springs 45 to the side away from the housing 20 with the receiving portions 68 of the cover 21 fastened to the housing 20. In this state, it is connected to each of the external connection terminals 73. Therefore, the movement of the bobbins 42 in the direction away from the housing 20 is restricted by the bobbins 42 abutting against the receiving portions 68 of the cover 21, and the external connection terminals 73 are caused by the vibration of the bobbins 42. .., 74..., Only the bending force on the side close to the housing 20 acts.
[0060]
In addition, the cover 21 includes a plurality of ribs 76 that support the first flat plate portions 73a, 74a, which are protruding portions from the cover 21 of the external connection terminals 73, 74, ... The first molded body 65 is integrally formed. Therefore, the external connection terminals 73, 74, etc. are formed by the ribs 76, so as to withstand a bending force from the bobbins 42, which acts on the external connection terminals 73, 74, to the housing 20 side in accordance with vehicle vibration. Even if the protruding amount of the external connection terminals 73... 74 is set to be relatively large, it is possible to prevent the external connection terminals 73. Each solenoid valve 5 is avoided by avoiding the inclination of the bobbins 42 due to the bending of 73. 1 ~ 5 Four , 6 1 ~ 6 Four Can maintain the expected performance.
[0061]
Further, the cover 21 is such that both the molded bodies 61 and 62 are relatively vibrated at high speed in a state where the tip of the welding projection 66b of the second molded body 66 is in pressure contact with the joining surface 65a of the first molded body 65. The tip of the welding projection 66b is vibration welded to the joint surface 65a by frictional heat generated between the tip of the welding projection 66b and the joint surface 65a. Of the burr generated at the contact portion of the tip portion of the portion 66b and the joint surface 65a, a portion that protrudes outward is a second restriction protrusion along the inner surface of the first restriction protrusion 65b by the first guide face 65c. It will be guided to the part 66c side. Further, the burr guided from the inner surface of the first restricting protrusion 65b to the inner surface of the second restricting protrusion 66c is guided to the outer surface of the welding protrusion 66b by the second guide surface 66d.
[0062]
Therefore, it is avoided that the burr protrudes outward from the gap between the first and second restricting protrusions 65b and 66c, and the joining surface 65a, the first restricting protrusion 65b, the second restricting protrusion 66c, and the welding protrusion are avoided. The burr is accommodated in the space formed by the portion 66b, and it is possible to reliably prevent the burr from being exposed on the outer surface of the cover 21, thereby contributing to an improvement in the merchantability of the cover 21.
[0063]
Furthermore, at least both long side parts 66a among the flanges 66a with which the 2nd molded object 66 is provided. 1 66a 1 On the surface opposite to the welding projection 66b of the long side portion 66a 1 66a 1 Are formed at intervals in the longitudinal direction. Therefore, it is possible to avoid the protrusion of the welding projection 66b from the flange 66a from becoming significantly thicker than the other parts of the second molded body 66, and to equalize the thickness of the second molded body 66 as much as possible. It is possible to prevent the second molded body 66 from being dragged or warped during molding. In addition, the mold 86 for molding the second molded body 66 is provided with a plurality of protrusions 86a, 86a ... for forming the recesses 87, 87 ..., and these protrusions 86a, 86a. ..., the direction of the fibers mixed in the synthetic resin is disturbed as shown by the arrows in FIG. 9, so that the orientation direction of the fibers is the long side portion 66a of the flange 66a. 1 66a 1 Are not aligned in the longitudinal direction, and this makes it possible to more effectively prevent the flange 66a from warping.
[0064]
And the partition between each recessed part 87,87 ... is the long side part 66a in the flange 66a. 1 66a 1 And the function of preventing the flange 66a from being deformed by the pressure acting on the flange 66a during vibration welding. That is, in order to achieve uniform thickness at the projection of the welding projection 66b from the flange 66a, both long sides 66a 1 66a 1 On the surface opposite to the welding projection 66b of the long side portion 66a 1 66a 1 However, in such a groove, the long side portion 66a of the flange 66a may be provided. 1 66a 1 The function of preventing the deformation of the flange 66a due to the pressure acting on the flange 66a during vibration welding cannot be obtained.
[0065]
Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. Is possible.
[0066]
For example, in the above embodiment, the case where the present invention is applied to the cover 21 of the vehicle brake hydraulic pressure control device has been described. However, the present invention is not limited to such a cover 21, and the first and second made of synthetic resin are used. The present invention can be widely applied to resin parts formed by vibration welding of a molded body.
[0067]
【The invention's effect】
As described above, according to the present invention, at least the long side portion of the flange included in the second molded body is formed on the surface opposite to the welding projection. Was The plurality of recesses avoids the protrusions of the welding projections from becoming significantly thicker than the other parts of the second molded body, and the thickness of the second molded body is equalized as much as possible. It is possible to prevent shrinkage and warpage from occurring. In addition, since the direction of the fibers mixed in the synthetic resin is disturbed by the plurality of protrusions provided on the mold to form each recess, the orientation direction of the fibers is aligned with the longitudinal direction of the long side portion of the flange. It is possible to prevent the flange from warping more effectively. And the partition between each recessed part can fulfill the function which prevents the deformation | transformation of the flange at the time of the reinforcement function of a flange and vibration welding.
[Brief description of the drawings]
FIG. 1 is a brake hydraulic circuit diagram of a passenger vehicle brake device.
FIG. 2 is a partially cutaway side view of the brake fluid pressure control device.
FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2;
4 is a view taken in the direction of arrow 4 in FIG. 2;
5 is an enlarged cross-sectional view taken along line 5-5 of FIG.
FIG. 6 is a perspective view of a magnetic path frame.
FIG. 7 is an enlarged vertical cross-sectional view of a main part of a cover before molding.
FIG. 8 is a cross-sectional view corresponding to FIG. 7 of the cover after molding.
FIG. 9 is a cross-sectional view of a second molded body molding die apparatus.
10 is a view of the first molded body of the cover as seen from the direction of arrows 10-10 in FIG.
[Explanation of symbols]
21: Cover as a resin part
65 ... 1st molded object
65a ... Joining surface
66 ... second molded body
66a ... Flange
66a 1 ... Long sides
66a 2 ... Short side
66b ... welding protrusion
87 ... recess

Claims (1)

合成樹脂製の第1成形体(65)に長方形状の接合面(65a)が形成され、相互に平行な一対の長辺部(66a1 )の両端に両長辺部(66a1 )と直交する方向で相互に平行に延びる一対の短辺部(66a2 )の両端が連設されて成るフランジ(66a)と、横断面長方形の筒状に形成されて前記フランジ(66a)から突出する溶着突起(66b)とを有して繊維混入合成樹脂から成る第2成形体(66)が、前記溶着突起(66b)の前記接合面(65a)への振動溶着により第1成形体(65)に結合された樹脂製部品において、前記フランジ(66a)のうち、少なくとも前記両長辺部(66a1 )の前記溶着突起(66b)とは反対側の面に、それらの長辺部(66a1 )の長手方向に間隔をあけて複数の凹部(87)が、それらの凹部(87)相互間に隔壁を介在させるようにして形成されたことを特徴とする樹脂製部品。A rectangular joint surface (65a) is formed on the first molded body (65) made of synthetic resin, and is orthogonal to both long side portions (66a 1 ) at both ends of a pair of long side portions (66a 1 ) parallel to each other. A flange (66a) in which both ends of a pair of short sides (66a 2 ) extending in parallel with each other in a direction to be connected, and a weld formed in a cylindrical shape having a rectangular cross section and projecting from the flange (66a) A second molded body (66) made of synthetic resin mixed with fibers having a projection (66b) is attached to the first molded body (65) by vibration welding of the welding projection (66b) to the joining surface (65a). in combined resin parts, of the flange (66a), at least the said surface opposite to the welding protrusions (66b) of the two longer sides (66a 1), their long side portion (66a 1) A plurality of recesses (87) are spaced apart in the longitudinal direction of the Et recess (87) a resin component, characterized in that formed as to interpose a partition wall therebetween.
JP11679699A 1999-04-23 1999-04-23 Plastic parts Expired - Fee Related JP4145417B2 (en)

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JP3975155B2 (en) * 2002-11-22 2007-09-12 日信工業株式会社 Resin case

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