JP2013155712A - Method of assembling valve opening/closing timing control apparatus - Google Patents

Method of assembling valve opening/closing timing control apparatus Download PDF

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Publication number
JP2013155712A
JP2013155712A JP2012018682A JP2012018682A JP2013155712A JP 2013155712 A JP2013155712 A JP 2013155712A JP 2012018682 A JP2012018682 A JP 2012018682A JP 2012018682 A JP2012018682 A JP 2012018682A JP 2013155712 A JP2013155712 A JP 2013155712A
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Prior art keywords
driven
rotating body
retracting
rotor
base member
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Inventor
Masaki Kobayashi
昌樹 小林
Kazunari Adachi
一成 安達
Atsushi Honma
敦 本間
Akihiko Kusaka
晃彦 日下
Kenji Fujiwaki
賢二 藤脇
Kenji Ikeda
憲治 池田
Kazumasa Ueda
一生 上田
Hiromitsu Shikko
洋充 執行
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Aisin Corp
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Aisin Seiki Co Ltd
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Priority to JP2012018682A priority Critical patent/JP2013155712A/en
Priority to US13/744,078 priority patent/US20130192066A1/en
Publication of JP2013155712A publication Critical patent/JP2013155712A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34453—Locking means between driving and driven members
    • F01L2001/34463—Locking position intermediate between most retarded and most advanced positions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34453—Locking means between driving and driven members
    • F01L2001/34466—Locking means between driving and driven members with multiple locking devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34453—Locking means between driving and driven members
    • F01L2001/34476—Restrict range locking means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F01L2303/02—Initial camshaft settings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49405—Valve or choke making
    • Y10T29/49412—Valve or choke making with assembly, disassembly or composite article making

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method of assembling a valve opening/closing timing control apparatus, in which respective members of a driving-side rotation body is assembled in a state that clearances between a plurality of projecting and retracting members and their engaging recesses are respectively properly set, in a valve opening/closing timing control device having a lock mechanism.SOLUTION: A method of assembling a valve opening/closing timing control apparatus includes: a process of temporarily fixing a driven-side rotation body 3 to a base member 6 so as to be in a first rotation restricting state by engaging a first projecting and retracting member with the base member 6 of a driving-side rotation body 1 and the driven-side rotation body 3 and then rotating either the base member 6 or the driven-side rotation body 3; a process of assembling a supplementary member 5 into a second rotation restricting state with respect to the driven-side rotation body 3 by assembling the supplementary member 5 of the driving-side rotation body 1 to the base member 6 while a second projecting and retracting member 22 is engaged with the supplementary member 5 and the driven-side rotation body 3 and then rotating either the supplementary member 5 or the driven-side rotation body 3; and a process of fastening the supplementary member 5 and the base member 6 to each other by using a fastening member 40.

Description

本発明は、内燃機関の動弁装置において吸排気弁の開閉時期を制御するために使用される弁開閉時期制御装置の組み付け方法に関する。   The present invention relates to a method for assembling a valve opening / closing timing control device used for controlling the opening / closing timing of an intake / exhaust valve in a valve operating apparatus for an internal combustion engine.

弁開閉時期制御装置において、例えば、駆動側回転体と従動側回転体との相対位相を最遅角側または最進角側の一方位置にロックするロック機構として、駆動側回転体あるいは従動側回転体の一方にロック部材（出退部材）を１つ設け、他方にロック部材を係止する係止孔を設けたものが存在する。ロック部材と係止孔との間には、ロック部材が係止孔にスムーズに挿入されるようクリアランスが設けられている。ただし、このクリアランスが大きいと、エンジン始動時に作動油が作動室内部に充填されるまでの間、ロック部材と係止孔の内面とが衝突を繰り返して異音を発生する。このため、出退部材と係止孔との間のクリアランスを適正に設定する必要がある。   In the valve opening / closing timing control device, for example, as a lock mechanism that locks the relative phase of the driving side rotating body and the driven side rotating body at one position of the most retarded angle side or the most advanced angle side, the driving side rotating body or the driven side rotation There is one in which one lock member (withdrawal member) is provided on one side of the body and a locking hole for locking the lock member is provided on the other side. A clearance is provided between the locking member and the locking hole so that the locking member can be smoothly inserted into the locking hole. However, if this clearance is large, the lock member and the inner surface of the locking hole repeatedly collide with each other until the working oil is filled into the working chamber when the engine is started, and noise is generated. For this reason, it is necessary to set the clearance between the retracting member and the locking hole appropriately.

ロック部材（出退部材）と係止孔とのクリアランスを適正に設定するには、例えば以下のように弁開閉時期制御装置の組み付けが行われる。まず、ロータ本体（駆動側回転体）の内周側に形成される流体室の最進角側の端面に従動側回転体の仕切部を当接させて従動側回転体とロータ本体との相対位相をロックする。そして、ロック部材を駆動側部材のスプロケットに形成された係止孔に挿入し、スプロケットを従動側回転体に対して相対回転させて係止孔の内面にロック部材を接触させる。その後、スプロケットと従動側回転体とを相対回転させて係止孔の内面からロック部材を離間させることで、ロック部材と係止孔とのクリアランスを適正に設定し、その状態で駆動側回転体のスプロケットとロータ本体との締結が行われる。   In order to properly set the clearance between the lock member (withdrawal member) and the locking hole, for example, the valve opening / closing timing control device is assembled as follows. First, the partition part of the driven-side rotating body is brought into contact with the end surface of the fluid chamber formed on the inner peripheral side of the rotor body (drive-side rotating body) so that the driven-side rotating body and the rotor body are relatively Lock the phase. Then, the lock member is inserted into a locking hole formed in the sprocket of the driving side member, and the sprocket is rotated relative to the driven side rotating body to bring the locking member into contact with the inner surface of the locking hole. Thereafter, the sprocket and the driven-side rotator are rotated relative to each other to separate the lock member from the inner surface of the engagement hole, so that the clearance between the lock member and the engagement hole is set appropriately, and in this state, the drive-side rotator is set. The sprocket and the rotor body are fastened.

弁開閉時期制御装置には、駆動側回転体と従動側回転体との相対位相を最遅角側及び最進角側の間の位置にロックする中間ロック機構として、遅角規制用の規制部材（出退部材）と進角規制用の規制部材（出退部材）とを個別に備えるものがある（例えば特許文献１参照）。また、駆動側回転体と従動側回転体との相対位相を例えば最遅角側の一方位置にロックするロック機構として、２つのロック部材（出退部材）を備える弁開閉時期制御装置も存在する。   The valve opening / closing timing control device includes a retarding angle regulating member as an intermediate locking mechanism that locks the relative phase between the driving side rotating body and the driven side rotating body at a position between the most retarded angle side and the most advanced angle side. There are some which are individually provided with (retracting member) and a regulating member (retracting member) for regulating the advance angle (see, for example, Patent Document 1). Further, there is a valve opening / closing timing control device including two lock members (withdrawal members) as a lock mechanism that locks the relative phase between the driving side rotating body and the driven side rotating body at, for example, one position on the most retarded angle side. .

特開２００１−２４１３０７号公報JP 2001-241307 A

特許文献１に示す弁開閉時期制御装置では、駆動側回転体のフロントプレートに軸方向に平行な規制部材（出退部材）が２つ備えられ、規制溝が従動側回転体に設けられている。２つの規制部材が共にフロントプレートに取付けられていると、規制溝とのクリアランスが規制部材の一方では最遅角側に設定され、他方では最進角側に設定されることになる。このため、中間位相でロックする弁開閉時期制御装置においては、２つの規制部材とこれらの規制溝とのクリアランスを適正に設定することができず、規制部材が規制溝内で移動して衝突を繰り返すことにより発生する異音を抑制することができなかった。   In the valve opening / closing timing control device shown in Patent Document 1, two regulating members (withdrawal members) parallel to the axial direction are provided on the front plate of the driving side rotating body, and the regulating grooves are provided on the driven side rotating body. . When the two regulating members are both attached to the front plate, the clearance with the regulating groove is set to the most retarded angle side on one side of the regulating member and set to the most advanced angle side on the other side. For this reason, in the valve opening / closing timing control device that locks in the intermediate phase, the clearance between the two restricting members and these restricting grooves cannot be set properly, and the restricting member moves within the restricting grooves and collides. Unusual noise generated by repetition could not be suppressed.

本発明は、ロック機構を有する弁開閉時期制御装置において、複数の出退部材とそれらの係合凹部とのクリアランスを夫々適正に設定された状態で駆動側回転体の各部材を組み付ける組み付け方法を提供することを目的としている。   The present invention relates to a valve opening / closing timing control device having a lock mechanism, and an assembling method for assembling each member of a driving side rotating body in a state where clearances between a plurality of retracting members and their engaging recesses are respectively set appropriately. It is intended to provide.

本発明の弁開閉時期制御装置の組み付け方法の第１特徴手段は、内燃機関のクランクシャフトと同期回転し、基部材と当該基部材に組み付けられる少なくとも一つの補完部材とで構成される駆動側回転体と、
前記駆動側回転体と同軸芯状に配置され、前記内燃機関の弁開閉用のカムシャフトと一体回転する従動側回転体と、
前記駆動側回転体と前記従動側回転体との間に形成され、これら双方の回転体の少なくとも一方に設けられた仕切部によって、進角室と遅角室とに仕切られた流体圧室と、
前記駆動側回転体と前記従動側回転体とに亘って係脱可能であり、これら回転体どうしの相対回転位相を所定位相にロック又は所定位相範囲内に規制する第１出退部材と第２出退部材と、の組み立てに際し、
前記基部材と前記従動側回転体とに亘って前記第１出退部材を係合させたのち、前記従動側回転体が前記基部材に対して進角方向或いは遅角方向の何れか一方向に相対回転するよう、前記基部材及び前記従動側回転体の何れか一方を回転させて、前記従動側回転体を前記基部材に対して第１回転規制状態にして仮固定する工程と、
前記補完部材を、当該補完部材と前記従動側回転体とに前記第２出退部材を係合させた状態で前記基部材に組み付け、さらに前記補完部材が前記従動側回転体に対して前記一方向に相対回転するよう、前記補完部材及び前記従動側回転体の何れか一方を回転させて、前記補完部材を前記従動側回転体に対して第２回転規制状態とする工程と、
前記補完部材と前記基部材とを締結部材を用いて締結する工程とを備えた点にある。 The first characteristic means of the assembling method of the valve timing control device of the present invention is a drive side rotation which comprises a base member and at least one complementary member which is assembled to the base member and rotates synchronously with the crankshaft of the internal combustion engine. Body,
A driven-side rotating body that is arranged coaxially with the driving-side rotating body, and rotates integrally with a camshaft for opening and closing the valve of the internal combustion engine;
A fluid pressure chamber formed between the drive-side rotator and the driven-side rotator and partitioned into an advance chamber and a retard chamber by a partition provided on at least one of the both rotators; ,
A first retracting member and a second member that can be engaged / disengaged between the driving side rotating body and the driven side rotating body, and that lock the relative rotational phase of these rotating bodies to a predetermined phase or restrict them within a predetermined phase range. When assembling the withdrawal member,
After the first retracting member is engaged across the base member and the driven-side rotator, the driven-side rotator is in either the advance direction or the retard direction with respect to the base member. Rotating one of the base member and the driven-side rotator so as to rotate relative to the base member, and temporarily fixing the driven-side rotator to the base member in a first rotation restricted state;
The complementary member is assembled to the base member in a state in which the second extending / retracting member is engaged with the complementary member and the driven-side rotator, and the complementary member is further attached to the driven-side rotator. Rotating either one of the complementary member and the driven-side rotator so as to relatively rotate in a direction, and setting the complementary member to a second rotation restricted state with respect to the driven-side rotator;
And a step of fastening the complementary member and the base member using a fastening member.

本発明の弁開閉時期制御装置の組み付け方法は、駆動側回転体の基部材と従動側回転体とに亘って第１出退部材を係合させたのち、従動側回転体を第１回転規制状態にしてとして仮固定する工程と、補完部材を、当該補完部材と従動側回転体とに第２出退部材を係合させた状態で基部材に組み付け、補完部材を従動側回転体に対して第２回転規制状態とする工程とを備える。したがって、第１出退部材及び第２出退部材は、組み付けの際に、従動側回転体と駆動側回転体における異なる部材（基部材及び補完部材）との間において個別に規制状態となる。この状態から仮に一方の出退部材と出退部材が係合される駆動側回転体及び従動側回転体との間でクリアランスの調整がなされたとしても、他方の出退部材が係合される駆動側回転体と従動側回転体との間のクリアランスは維持される。これにより、複数の出退部材と駆動側回転体及び従動側回転体との間のクリアランスを各別に設定することができ、各出退部材のクリアランスを適正に設定した状態で駆動側回転体と従動側回転体とを締結することができる。その結果、エンジン始動時における出退部材の打音を低減することができる。   In the method for assembling the valve opening / closing timing control device of the present invention, the first rotating member is engaged with the base member of the driving side rotating body and the driven side rotating body, and then the driven side rotating body is subjected to the first rotation restriction. The step of temporarily fixing as a state and the complementary member are assembled to the base member in a state in which the second retracting member is engaged with the complementary member and the driven side rotating body, and the complementary member is attached to the driven side rotating body. And a step of setting the second rotation restricted state. Therefore, the first withdrawing member and the second withdrawing member are individually restricted between different members (base member and complementary member) of the driven side rotating body and the driving side rotating body when assembled. Even if the clearance is adjusted between the drive-side rotator and the driven-side rotator to which one of the retractable members and the retractable member are engaged from this state, the other retractable member is engaged. The clearance between the driving side rotating body and the driven side rotating body is maintained. Thereby, the clearance between the plurality of retracting members and the driving side rotating body and the driven side rotating body can be set separately, and the driving side rotating body and The driven side rotating body can be fastened. As a result, it is possible to reduce the hitting sound of the retracting member when starting the engine.

本発明の弁開閉時期制御装置の組み付け方法の第２特徴手段は、前記第１出退部材及び前記第２出退部材のうち、一方を前記駆動側回転体の径方向に設けられたキー部材で構成し他方を前記駆動側回転体の軸芯方向に設けられたピン部材で構成してある点にある。   The second characteristic means of the valve opening / closing timing control device assembly method of the present invention is characterized in that one of the first withdrawing member and the second withdrawing member is provided in the radial direction of the driving side rotating body. And the other is composed of a pin member provided in the axial direction of the drive side rotating body.

例えば、第１出退部材および第２出退部材を何れも回転軸芯の方向に移動するピン部材で構成した場合、第１出退部材は駆動側回転体のフロントプレートに係止し、第２出退部材は駆動側回転体のリアプレートに係止することとなる。一方、遅角側停止位置および進角側停止位置は、駆動側回転体の筒状の基部に形成されることが多いが、この基部は、フロントプレートあるいはリアプレートとは別部品で構成されることもある。これら駆動側回転体と従動側回転体とを組み立てる場合には、中間ロック位置と、遅角側停止位置および進角側停止位置とを全て規定する必要がある。そのためには、従動側回転体と基部との遅角側および進角側での当接位置を考慮しながら、夫々の出退部材が係止するフロントプレートとリアプレートとを位置決めしなければならず、全ての部材の位置合わせが必要になる。   For example, when both the first withdrawing member and the second withdrawing member are constituted by pin members that move in the direction of the rotation axis, the first withdrawing member is locked to the front plate of the driving side rotating body, 2 The withdrawal member is locked to the rear plate of the driving side rotating body. On the other hand, the retard side stop position and the advance side stop position are often formed on the cylindrical base portion of the drive side rotating body, but this base portion is configured as a separate component from the front plate or the rear plate. Sometimes. When assembling the driving side driven body and the driven side rotating body, it is necessary to define all of the intermediate lock position, the retard side stop position, and the advance side stop position. For this purpose, the front plate and the rear plate to be locked by the respective retracting members must be positioned in consideration of the contact positions on the retard side and the advance side of the driven side rotating body and the base. First, all the members need to be aligned.

しかし、本構成のように、例えば第１出退部材を、駆動側回転体と従動側回転体とに亘って径方向に設けたキー部材で構成することで、従動側回転体の停止位置である遅角側の停止位置および、進角側の停止位置、さらには、中間ロック位置の全てが、駆動側回転体を構成する一つの基部に規定することが可能となる。つまり、本構成であれば、第１出退部材を中間ロック位置で固定することで、遅角側および進角側の停止位置が必然的に決定される。本構成であれば、第１出退部材を中間ロック位置で当接保持する際に遅角側及び進角側の停止位置を考慮する必要がないから、例えば、第１出退部材も第２出退部材も当接しないリアプレートが存在する場合に、当該リアプレートは、駆動側回転体の基部に対して任意の相対回転位相に取り付けることができる。このように、本構成であれば、駆動側回転体の組み立てがより簡略化されるため、弁開閉時期制御装置をより合理的に得ることができる。   However, as in this configuration, for example, the first retracting member is constituted by a key member provided in the radial direction across the driving side rotating body and the driven side rotating body, so that at the stop position of the driven side rotating body. A certain retard angle stop position, advance angle stop position, and intermediate lock position can all be defined in one base constituting the drive side rotating body. That is, according to this configuration, the retard position and the advance position are inevitably determined by fixing the first retracting member at the intermediate lock position. With this configuration, when the first advancing / retracting member is held in contact with the intermediate lock position, there is no need to consider the retarded and advanced stop positions. When there is a rear plate to which neither the retracting member nor the abutting member is present, the rear plate can be attached to an arbitrary relative rotational phase with respect to the base of the driving side rotating body. Thus, with this configuration, the assembly of the drive-side rotator is further simplified, so that the valve opening / closing timing control device can be obtained more reasonably.

本発明の弁開閉時期制御装置の組み付け方法の第３特徴手段は、前記補完部材と前記基部材とを前記締結部材を用いて締結する工程は、前記第２出退部材と前記補完部材とのクリアランスを所定値に設定した後に実施される点にある。   According to a third feature of the method for assembling the valve timing control device of the present invention, the step of fastening the complementary member and the base member using the fastening member is performed by the second withdrawal member and the complementary member. This is performed after the clearance is set to a predetermined value.

出退部材と補完部材とのクリアランスが大きい場合には、出退部材の打音は大きくなる。反対に出退部材と補完部材とのクリアランスが小さい場合には、駆動側回転体又は従動側回転体に対して係脱される出退部材の作動性が悪くなる。本構成の如く、第２出退部材と補完部材とのクリアランスを所定値に設定した後に、補完部材と基部材とを締結部材を用いて締結することで、第２出退部材と補完部材とのクリアランスを適正な値に設定することができる。その結果、出退部材の作動性を確保しつつ、出退部材の打音を抑制することができる。   When the clearance between the retracting member and the complementary member is large, the hitting sound of the retracting member is large. On the other hand, when the clearance between the retracting member and the complementary member is small, the operability of the retracting member that is engaged with and disengaged from the driving side rotating body or the driven side rotating body is deteriorated. As in this configuration, after setting the clearance between the second retracting member and the complementary member to a predetermined value, the complementary member and the base member are fastened using the fastening member, so that the second retracting member and the complementary member are The clearance can be set to an appropriate value. As a result, it is possible to suppress the hitting sound of the retracting member while ensuring the operability of the retracting member.

弁開閉時期制御装置の組み付け状態を示す断面図である。It is sectional drawing which shows the assembly | attachment state of a valve opening / closing timing control apparatus. 特定作動状態における図１のＩＩ−ＩＩ矢視断面図である。It is the II-II arrow sectional drawing of FIG. 1 in a specific operation state. 弁開閉時期制御装置の組み付け方法の工程を示す図である。It is a figure which shows the process of the assembly | attaching method of a valve opening / closing timing control apparatus. 弁開閉時期制御装置の組み付け方法の工程を示す図である。It is a figure which shows the process of the assembly | attaching method of a valve opening / closing timing control apparatus. 弁開閉時期制御装置の組み付け方法の工程を示す図である。It is a figure which shows the process of the assembly | attaching method of a valve opening / closing timing control apparatus. 第２実施形態の駆動側回転体および従動側回転体の断面図である。It is sectional drawing of the drive side rotary body of 2nd Embodiment, and a driven side rotary body. 第２実施形態の弁開閉時期制御装置の組み付け方法の工程を示す図である。It is a figure which shows the process of the assembly | attaching method of the valve opening / closing timing control apparatus of 2nd Embodiment. 第２実施形態の弁開閉時期制御装置の組み付け方法の工程を示す図である。It is a figure which shows the process of the assembly | attaching method of the valve opening / closing timing control apparatus of 2nd Embodiment. 第２実施形態の弁開閉時期制御装置の組み付け方法の工程を示す図である。It is a figure which shows the process of the assembly | attaching method of the valve opening / closing timing control apparatus of 2nd Embodiment.

以下、本発明に係る弁開閉時期制御装置の組み付け方法を図面に基づいて説明する。   Hereinafter, a method for assembling the valve timing control device according to the present invention will be described with reference to the drawings.

図１及び図２に示すように、弁開閉時期制御装置１００は、エンジン（内燃機関）ＥのクランクシャフトＣに対して回転方向Ｓ（図２参照）に同期回転する外部ロータ１（駆動側回転体の一例）と、外部ロータ１の内周側で当該外部ロータ１に対して相対回転するように支持され、かつ、エンジンの弁開閉用のカムシャフト２と一体回転する内部ロータ３（従動側回転体の一例）とを備えている。   As shown in FIGS. 1 and 2, the valve timing control apparatus 100 includes an external rotor 1 (drive side rotation) that rotates synchronously with a rotation direction S (see FIG. 2) with respect to a crankshaft C of an engine (internal combustion engine) E. And an internal rotor 3 (driven side) which is supported so as to rotate relative to the external rotor 1 on the inner peripheral side of the external rotor 1 and rotates integrally with a camshaft 2 for opening and closing the valve of the engine. An example of a rotating body).

外部ロータ１は、前側すなわちカムシャフト２とは反対側に設けられたフロントプレート４と、後側すなわちカムシャフト２の側に設けられたスプロケット５と、フロントプレート４とスプロケット５との間に介装されたロータ本体６と、を備えている。ここでは、ロータ本体６が基部材に相当し、フロントプレート４及びスプロケット５が補完部材に相当する。   The external rotor 1 includes a front plate 4 provided on the front side, that is, the side opposite to the cam shaft 2, a sprocket 5 provided on the rear side, that is, the cam shaft 2, and a front plate 4 and the sprocket 5. A mounted rotor main body 6. Here, the rotor body 6 corresponds to a base member, and the front plate 4 and the sprocket 5 correspond to complementary members.

クランクシャフトＣが回転駆動されると、動力伝達部材ＣＨを介してスプロケット５にその回転駆動力が伝達され、外部ロータ１が回転方向Ｓ（図２参照）に回転駆動する。外部ロータ１の回転に伴い、内部ロータ３が回転方向Ｓに回転駆動してカムシャフト２が回転し、カムシャフト２に設けられたカム（図示しない）がエンジンの例えば吸気弁（図示しない）を押し下げる。   When the crankshaft C is rotationally driven, the rotational driving force is transmitted to the sprocket 5 through the power transmission member CH, and the external rotor 1 is rotationally driven in the rotational direction S (see FIG. 2). As the external rotor 1 rotates, the internal rotor 3 rotates in the rotational direction S to rotate the camshaft 2, and a cam (not shown) provided on the camshaft 2 drives an intake valve (not shown) of the engine, for example. Press down.

図２に示すように、ロータ本体６の内周部には、径方向内方側に突出する第１仕切部８が複数形成されている。第１仕切部８は回転方向Ｓに沿って間隔を隔てて配置されている。内部ロータ３の外周部には、径方向外方側に突出する第２仕切部９が複数形成されている。第２仕切部９は、第１仕切部８と同様に回転方向Ｓに沿って間隔を隔てて配置されている。第１仕切部８によって、ロータ本体６と内部ロータ３との間の空間が複数の流体圧室１０に仕切られている。第２仕切部９によって、これら流体圧室１０がそれぞれ進角室１１と遅角室１２とに仕切られている。   As shown in FIG. 2, a plurality of first partition portions 8 projecting radially inward are formed on the inner peripheral portion of the rotor body 6. The first partitioning portions 8 are arranged along the rotation direction S with an interval. A plurality of second partition portions 9 protruding outward in the radial direction are formed on the outer peripheral portion of the inner rotor 3. The second partitioning part 9 is arranged along the rotation direction S with an interval in the same manner as the first partitioning part 8. A space between the rotor body 6 and the internal rotor 3 is partitioned into a plurality of fluid pressure chambers 10 by the first partitioning portion 8. These fluid pressure chambers 10 are partitioned into an advance chamber 11 and a retard chamber 12 by the second partition 9.

図１及び図２に示すように、内部ロータ３及びカムシャフト２の内部には、各進角室１１と作動油の給排及びその給排の遮断を行う給排機構２０とを接続する進角通路１３、各遅角室１２と給排機構２０とを接続する遅角通路１４が形成されている。   As shown in FIG. 1 and FIG. 2, the internal rotor 3 and the camshaft 2 are internally connected to each advance chamber 11 and a supply / discharge mechanism 20 that supplies and discharges hydraulic oil and shuts off the supply / discharge. An angular passage 13 and a retardation passage 14 that connects each retardation chamber 12 and the supply / discharge mechanism 20 are formed.

給排機構２０は、オイルパンと、オイルポンプＰと、進角室１１及び遅角室１２に対して作動油の給排及びその給排の遮断を行う流体制御弁Ｖと、流体制御弁Ｖの作動を制御する電子制御ユニットＥＣＵと、を備えている。この電子制御ユニットＥＣＵを制御することによって、内部ロータ３と外部ロータ１との相対回転位相を進角方向（図２の回転方向Ｓ１）または遅角方向（図２の回転方向Ｓ２）へ変位させたり、任意の位相に保持する。   The supply / discharge mechanism 20 includes an oil pan, an oil pump P, a fluid control valve V that supplies and discharges hydraulic oil to and from the advance chamber 11 and the retard chamber 12, and a fluid control valve V. An electronic control unit ECU for controlling the operation of By controlling the electronic control unit ECU, the relative rotational phase between the internal rotor 3 and the external rotor 1 is displaced in the advance direction (rotation direction S1 in FIG. 2) or the retard direction (rotation direction S2 in FIG. 2). Or hold at any phase.

図１に示すように、内部ロータ３と外部ロータ１との間には、両ロータ１，２の相対回転位相を進角側に付勢する付勢機構としてのトーションスプリング１９が設けられている。トーションスプリング１９は、内部ロータ３を外部ロータ１に対して回転方向Ｓ１で示す方向（進角側）に付勢する。これによって、カムシャフト２と一体回転する内部ロータ３の相対位相が、カムシャフト２がバルブスプリングから受ける抵抗のために、外部ロータ１の回転に対して遅れがちになるのを解消する役目を果たす。   As shown in FIG. 1, a torsion spring 19 is provided between the inner rotor 3 and the outer rotor 1 as a biasing mechanism that biases the relative rotational phase of the rotors 1 and 2 toward the advance side. . The torsion spring 19 biases the inner rotor 3 in the direction indicated by the rotation direction S <b> 1 (advance side) with respect to the outer rotor 1. As a result, the relative phase of the internal rotor 3 that rotates integrally with the camshaft 2 serves to eliminate the tendency for the camshaft 2 to be delayed from the rotation of the external rotor 1 due to the resistance that the camshaft 2 receives from the valve spring. .

図１及び図２に示すように、ロック機構として、ロータ本体６の第１仕切部８の１つに装着された第１出退部材２１と、内部ロータ３のスプロケット５に対向する面において回転軸芯Ｘに平行な方向に装着された第２出退部材２２と、を備える。内部ロータ３の外周面にその回転軸芯Ｘを中心とする円弧に沿う溝状に形成してある第１係合凹部２３とを備える。第１係合凹部２３は第１出退部材２１が係合する部分である。スプロケット５の内部ロータ３に対向する面には、第２出退部材２２に係合する第２係合凹部２４が形成されている。   As shown in FIG. 1 and FIG. 2, the lock mechanism is rotated on the first facing member 21 mounted on one of the first partition portions 8 of the rotor body 6 and the surface of the inner rotor 3 facing the sprocket 5. A second extending / retracting member 22 mounted in a direction parallel to the shaft core X. A first engaging recess 23 is formed on the outer peripheral surface of the inner rotor 3 in a groove shape along an arc centered on the rotation axis X. The first engaging recess 23 is a portion with which the first withdrawing member 21 is engaged. A second engaging recess 24 that engages with the second retracting member 22 is formed on the surface of the sprocket 5 that faces the inner rotor 3.

第１出退部材２１は遅角規制用の出退部材であって、第２出退部材２２は進角規制用の出退部材である。第１出退部材２１の基部はロータ本体６の第１仕切部８に形成された第１収容部３０に装着されており、第１収容部３０には第１出退部材２１を内部ロータ３に向けて突出するように付勢する第１スプリング２５が設けられている。第２出退部材２２の基部は内部ロータ３に形成された第２収容部３１に装着されており、第２収容部３１には第２出退部材２２をスプロケット５に向けて突出するように付勢する第２スプリング２６が設けられている。第１出退部材２１はプレート状のロック片で構成されており、第２出退部材２２は棒状のロックピン等で構成されている。第１出退部材２１として、プレート状のロック片の他に棒状のロックピンなどを適宜採用することもできる。   The first retracting member 21 is a retarding / retracting member, and the second retracting member 22 is an advance / retracting member. The base portion of the first retracting member 21 is attached to a first accommodating portion 30 formed in the first partitioning portion 8 of the rotor body 6, and the first retracting member 21 is attached to the inner rotor 3 in the first accommodating portion 30. A first spring 25 is provided to be biased so as to protrude toward the front. A base portion of the second retracting member 22 is attached to a second accommodating portion 31 formed in the internal rotor 3, and the second retracting member 22 projects toward the sprocket 5 in the second accommodating portion 31. A second spring 26 for biasing is provided. The first retracting member 21 is composed of a plate-shaped lock piece, and the second retracting member 22 is composed of a rod-shaped lock pin or the like. As the first withdrawing member 21, a rod-like lock pin or the like can be appropriately employed in addition to the plate-like lock piece.

内部ロータ３及びカムシャフト２の内部には、第１係合凹部２３の底面に開口するよう連通し給排機構２０に接続される第１ロック解除通路（遅角通路）１４と、第２出退部材２２の近傍に開口するよう連通し給排機構２０に接続される第２ロック解除通路１７とが備えられている。第１ロック解除通路（遅角通路）１４に作動油が送られると、第１出退部材２１は第１スプリング２５に抗して第１係合凹部２３から引退する。すなわち、第１出退部材２１をロック解除姿勢に切り替えることができる。また、第２ロック解除通路１７に作動油が送られると、第２出退部材２２は第２スプリング２６に抗して第２係合凹部２４から引退する。すなわち、第２出退部材２２をロック解除姿勢に切り替えることができる。   A first unlocking passage (retarding passage) 14 connected to the supply / exhaust mechanism 20 so as to open to the bottom surface of the first engaging recess 23 is provided inside the inner rotor 3 and the camshaft 2, and a second outlet. A second lock release passage 17 connected to the communication supply / discharge mechanism 20 so as to open near the retracting member 22 is provided. When hydraulic oil is sent to the first unlocking passage (retarding passage) 14, the first withdrawing member 21 is retracted from the first engaging recess 23 against the first spring 25. That is, the first withdrawing member 21 can be switched to the unlocking posture. Further, when the hydraulic oil is sent to the second unlocking passage 17, the second withdrawing member 22 retracts from the second engaging recess 24 against the second spring 26. That is, the second retracting member 22 can be switched to the unlocking posture.

第１出退部材２１を第１係合凹部２３に係止させることで、内部ロータ３の外部ロータ１に対する中間ロック位相から遅角方向（図２の回転方向Ｓ２）への回転範囲が規制される。第２出退部材２２を第２係合凹部２４に係止させることで、内部ロータ３の外部ロータ１に対する中間ロック位相から進角方向（図２の回転方向Ｓ１）への回転範囲が規制される。   By locking the first retracting member 21 in the first engaging recess 23, the rotation range from the intermediate lock phase of the inner rotor 3 to the outer rotor 1 in the retarding direction (rotation direction S2 in FIG. 2) is regulated. The By locking the second retracting member 22 in the second engaging recess 24, the rotation range from the intermediate lock phase of the inner rotor 3 to the outer rotor 1 to the advance angle direction (rotation direction S1 in FIG. 2) is restricted. The

以下、弁開閉時期制御装置１００の組み付け方法について説明する。
第１の工程では、図示しない治具にスプロケット５、ロータ本体６、内部ロータ３、フロントプレート４をセットし、ロータ本体６と内部ロータ３とに亘って第１出退部材２１を係合させたのち、内部ロータ３が外部ロータ１の基部材であるロータ本体６に対して進角方向或いは遅角方向の何れか一方向に相対回転するよう、ロータ本体６及び内部ロータ３の一方を他方に対して進角方向或いは遅角方向の何れか一方向に相対回転させ、内部ロータ３を第１回転規制状態にして仮固定する。ここで、第１回転規制状態とは、第１出退部材２１と第１係合凹部２３の進角側の端面２３ａとが接触する状態をいう。 Hereinafter, a method of assembling the valve opening / closing timing control device 100 will be described.
In the first step, the sprocket 5, the rotor body 6, the inner rotor 3, and the front plate 4 are set on a jig (not shown), and the first retracting member 21 is engaged across the rotor body 6 and the inner rotor 3. After that, one of the rotor body 6 and the inner rotor 3 is moved to the other so that the inner rotor 3 rotates relative to the rotor body 6 that is the base member of the outer rotor 1 in either the advance direction or the retard direction. The inner rotor 3 is temporarily fixed in a first rotation restricted state by rotating relative to either the advance angle direction or the retard angle direction. Here, the first rotation restriction state refers to a state in which the first withdrawing member 21 and the end face 23a on the advance side of the first engagement recess 23 are in contact with each other.

第２の工程では、図３に示すように、スプロケット５を、当該スプロケット５と内部ロータ３とに第２出退部材２２を係合させた状態でロータ本体６に組み付け、さらに外部ロータ１の補完部材であるスプロケット５が内部ロータ３に対して第１工程と同じ方向に相対回転するよう、スプロケット５を内部ロータ３に対して進角方向或いは遅角方向の何れか一方向に相対回転させて、スプロケット５を内部ロータ３に対して第２回転規制状態とする（図４）。ここで、第２回転規制状態とは、第２出退部材２２と第２係合凹部２４の進角側の端面２４ａとが接触する状態をいう。例えば、第２係合凹部２４の進角側の端面２４ａに第２出退部材２２が接触するようスプロケット５を内部ロータ３に対して相対回転させることで、第２回転規制状態にすることできる。   In the second step, as shown in FIG. 3, the sprocket 5 is assembled to the rotor body 6 with the second retracting member 22 engaged with the sprocket 5 and the internal rotor 3, and The sprocket 5 is rotated relative to the internal rotor 3 in one of the advance direction and the retard direction so that the complementary sprocket 5 rotates relative to the internal rotor 3 in the same direction as the first step. Thus, the sprocket 5 is brought into the second rotation restricted state with respect to the internal rotor 3 (FIG. 4). Here, the second rotation restricting state refers to a state where the second retracting member 22 and the end surface 24a on the advance side of the second engaging recess 24 are in contact with each other. For example, the second rotation restricting state can be achieved by rotating the sprocket 5 relative to the internal rotor 3 so that the second extending / retracting member 22 contacts the end face 24a on the advance side of the second engaging recess 24. .

第３の工程では、図５に示すように、第２出退部材２２と第２係合凹部２４の進角側の端面２４ａとのクリアランスＬを適正な所定値に設定し、その後、外部ロータ１の基部材であるロータ本体６及びフロントプレート４と補完部材であるスプロケット５とをボルト等の締結部材４０で締結する。スプロケット５の外周の歯部にウォームギア等を噛み合わせることで、スプロケット５はロータ本体６及び内部ロータ３に対して容易に相対回転させることができる。   In the third step, as shown in FIG. 5, the clearance L between the second retracting member 22 and the end face 24a on the advance side of the second engaging recess 24 is set to an appropriate predetermined value, and then the external rotor The rotor main body 6 and the front plate 4 that are base members of 1 and the sprocket 5 that is a complementary member are fastened by a fastening member 40 such as a bolt. The sprocket 5 can be easily rotated relative to the rotor body 6 and the inner rotor 3 by meshing a worm gear or the like with the teeth on the outer periphery of the sprocket 5.

第１出退部材２１及び第２出退部材２２は、組み付けの際に、内部ロータ３と外部ロータ１における異なる部材（ロータ本体６及びスプロケット５）との間において個別に回転規制状態となる。これにより、複数の出退部材２１，２２と外部ロータ１及び内部ロータ３との間のロック状態を各別に調整することができ、各出退部材２１，２２のロック状態を適正に設定した状態で外部ロータ１と内部ロータ３とを締結することができる。その結果、エンジン始動時における出退部材２１，２２の打音を低減することができる。   The first withdrawing member 21 and the second withdrawing member 22 are individually rotationally restricted between different members (the rotor body 6 and the sprocket 5) in the inner rotor 3 and the outer rotor 1 when assembled. Thereby, the locked state between the plurality of retracting members 21 and 22 and the external rotor 1 and the internal rotor 3 can be adjusted separately, and the locked state of each of the retracting members 21 and 22 is set appropriately. Thus, the outer rotor 1 and the inner rotor 3 can be fastened. As a result, it is possible to reduce the hitting sound of the withdrawing members 21 and 22 when starting the engine.

また、本実施形態の弁開閉時期制御装置１００の組み付け方法では、スプロケット５を内部ロータ３に対して第２回転規制状態にするために、スプロケットを内部ロータ３に対して遅角側に相対回転させて第２係合凹部２４の進角側の端面２４ａと第２出退部材２２とを当接させた後、スプロケット５を所定量だけ反対方向に相対回転させて第２出退部材２２と第２係合凹部２４の進角側の端面２４ａとのクリアランスＬを設定している。   Further, in the method for assembling the valve timing control device 100 of the present embodiment, the sprocket is rotated relative to the internal rotor 3 in the retarded direction in order to place the sprocket 5 in the second rotation restricted state with respect to the internal rotor 3. After the advancing side end surface 24a of the second engaging recess 24 and the second retracting member 22 are brought into contact with each other, the sprocket 5 is relatively rotated in the opposite direction by a predetermined amount, and the second retracting member 22 A clearance L between the second engaging recess 24 and the end surface 24a on the advance side is set.

このように、スプロケット５を内部ロータ３に対する一方向に相対回転して第２回転規制状態にした後、例えば、スプロケット５を所定量だけ反対方向に相対回転させることで、第２出退部材２２と第２係合凹部２４とのクリアランスを適正に設定することができる。この状態で、外部ロータ１を組み立てることで、ここで設定したクリアランスによって、第１出退部材２１及び第２出退部材２２の作動が容易となる。このように本構成であれば、第２出退部材２２の係止動作を円滑にしながらも、中間ロック位置での係止状態を必要最小限の遊びが残存する状態に設定することができる。   As described above, after the sprocket 5 is relatively rotated in one direction with respect to the inner rotor 3 to be in the second rotation restricted state, for example, by rotating the sprocket 5 in the opposite direction by a predetermined amount, the second retracting member 22 is obtained. And the second engagement recess 24 can be set appropriately. By assembling the external rotor 1 in this state, the first retracting member 21 and the second retracting member 22 can be easily operated by the clearance set here. In this way, with this configuration, it is possible to set the locked state at the intermediate lock position to a state where the minimum necessary play remains, while smoothly locking the second retracting member 22.

さらに、第１出退部材２１を外部ロータ１の径方向に設けられたキー部材で構成し、第２出退部材２２を外部ロータ１の軸芯方向に設けられたピン部材で構成してある。第１出退部材２１を、外部ロータ１と内部ロータ３とに亘って径方向に設けたキー部材で構成することで、内部ロータ３の停止位置である遅角側の停止位置および、進角側の停止位置、さらには、中間ロック位置の全てが、外部ロータ１を構成する一つの基部材であるロータ本体６に規定することが可能となる。つまり、本構成であれば、第１出退部材２１を中間ロック位置で固定することで、遅角側および進角側の停止位置が必然的に決定される。また、第１出退部材２１を中間ロック位置で当接保持する際に遅角側及び進角側の停止位置を考慮する必要がないから、第１出退部材２１も第２出退部材２２も当接しないフロントプレート４は、外部ロータ１の基部であるロータ本体６に対して任意の相対回転位相に取り付けることができる。このように、本構成であれば、外部ロータ１の組み付けがより簡略化されるため、弁開閉時期制御装置１００をより合理的に得ることができる。   Further, the first retracting member 21 is constituted by a key member provided in the radial direction of the external rotor 1, and the second retracting member 22 is constituted by a pin member provided in the axial direction of the external rotor 1. . The first retracting member 21 is constituted by a key member provided in a radial direction across the outer rotor 1 and the inner rotor 3, so that a retarded stop position that is a stop position of the inner rotor 3 and an advance angle All the stop positions on the side, and further the intermediate lock position, can be defined in the rotor body 6 which is one base member constituting the external rotor 1. That is, according to this configuration, the retard position and the advance position are inevitably determined by fixing the first retracting member 21 at the intermediate lock position. In addition, when the first advancing / retracting member 21 is held in contact with the intermediate locking position, it is not necessary to consider the stop positions on the retard side and the advancing side. The front plate 4 that does not come into contact with the rotor main body 6 that is the base of the external rotor 1 can be attached to an arbitrary relative rotational phase. Thus, with this configuration, the assembly of the external rotor 1 is further simplified, and the valve opening / closing timing control device 100 can be obtained more reasonably.

〔第２実施形態〕
図６〜図９に示す実施形態では、弁開閉時期制御装置１００のロック機構として、内部ロータ３に設けられ回転軸芯Ｘに平行な第１出退部材２１及び第２出退部材２２を備える。フロントプレート４の内部ロータ３に対向する面には、第１出退部材２１に係合する第１係合凹部２３が形成されている。スプロケット５の内部ロータ３に対向する面には、第２出退部材２２に係合する第２係合凹部２４が形成されている。 [Second Embodiment]
In the embodiment shown in FIGS. 6 to 9, as a lock mechanism of the valve opening / closing timing control device 100, a first retracting member 21 and a second retracting member 22 that are provided in the internal rotor 3 and are parallel to the rotation axis X are provided. . A first engaging recess 23 that engages with the first withdrawing member 21 is formed on the surface of the front plate 4 that faces the inner rotor 3. A second engaging recess 24 that engages with the second retracting member 22 is formed on the surface of the sprocket 5 that faces the inner rotor 3.

第１係合凹部２３は、フロントプレート４に向けて突出した第１出退部材２１の先端部が係止可能であり、第２係合凹部２４は、スプロケット５に向けて突出した第２出退部材２２の先端部が係止可能である。   The first engaging recess 23 can lock the tip of the first retracting member 21 that protrudes toward the front plate 4, and the second engaging recess 24 is the second protrusion that protrudes toward the sprocket 5. The distal end portion of the retracting member 22 can be locked.

図７に示すように、第１出退部材２１の基部は内部ロータ３に形成された第１収容部３０に装着されており、第１収容部３０には第１出退部材２１をフロントプレート４に向けて突出するように付勢する第１スプリング２５が設けられている。第２出退部材２２の基部は内部ロータ３に形成された第２収容部３１に装着されており、第２収容部３１には第２出退部材２２をスプロケット５に向けて突出するように付勢する第２スプリング２６が設けられている。   As shown in FIG. 7, the base of the first retracting member 21 is attached to a first accommodating portion 30 formed in the internal rotor 3, and the first retracting member 21 is attached to the first accommodating portion 30 on the front plate. A first spring 25 is provided to bias the projection 4 so as to protrude toward the center 4. A base portion of the second retracting member 22 is attached to a second accommodating portion 31 formed in the internal rotor 3, and the second retracting member 22 projects toward the sprocket 5 in the second accommodating portion 31. A second spring 26 for biasing is provided.

内部ロータ３及びカムシャフト２の内部には、第１係合凹部２３の近傍に開口するよう連通し給排機構２０に接続される第１ロック解除通路１６と、第２出退部材２２の近傍に開口するよう連通し給排機構２０接続される第２ロック解除通路１７とが備えられている。第１ロック解除通路１６に作動油が送られると、第１出退部材２１は第１スプリング２５に抗して第１係合凹部２３から引退する。すなわち、第１出退部材２１をロック解除姿勢に切り替えることができる。また、第２ロック解除通路１７に作動油が送られると、第２出退部材２２は第２スプリング２６に抗して第２係合凹部２４から引退する。すなわち、第２出退部材２２をロック解除姿勢に切り替えることができる。   In the interior of the internal rotor 3 and the camshaft 2, the first lock release passage 16 connected to the supply / discharge mechanism 20 so as to open in the vicinity of the first engagement recess 23, and the vicinity of the second retracting member 22 And a second unlocking passage 17 connected to the communication supply / exhaust mechanism 20 so as to open to the second opening. When the hydraulic oil is sent to the first unlocking passage 16, the first withdrawing member 21 is retracted from the first engaging recess 23 against the first spring 25. That is, the first withdrawing member 21 can be switched to the unlocking posture. Further, when the hydraulic oil is sent to the second unlocking passage 17, the second withdrawing member 22 retracts from the second engaging recess 24 against the second spring 26. That is, the second retracting member 22 can be switched to the unlocking posture.

以下、弁開閉時期制御装置１００の組み付け方法について説明する。
第１の工程では、図７に示すように、図示しない治具にスプロケット５、ロータ本体６、内部ロータ３、フロントプレート４をセットし、フロントプレート４と内部ロータ３とに亘って第１出退部材２１を係合させたのち、内部ロータ３が外部ロータ１の基部材であるロータ本体６に対して進角方向或いは遅角方向の何れか一方向に相対回転するよう、フロントプレート４及び内部ロータ３の一方を他方に対して進角方向或いは遅角方向の何れか一方向に相対回転させ、内部ロータ３を第１回転規制状態として仮固定する。ここで、第１回転規制状態とは、第１出退部材２１とフロントプレート４に形成された第１係合凹部２３の遅角側の端面２３ａとが接触する状態をいう。 Hereinafter, a method of assembling the valve opening / closing timing control device 100 will be described.
In the first step, as shown in FIG. 7, the sprocket 5, the rotor body 6, the internal rotor 3, and the front plate 4 are set on a jig (not shown), and the first protrusion is extended across the front plate 4 and the internal rotor 3. After engaging the retracting member 21, the front plate 4 and the inner rotor 3 are rotated relative to the rotor body 6, which is the base member of the outer rotor 1, in either the advance direction or the retard direction. One of the internal rotors 3 is rotated relative to the other in either the advance direction or the retard direction, and the internal rotor 3 is temporarily fixed in a first rotation restricted state. Here, the first rotation restriction state means a state where the first retracting member 21 and the end surface 23a on the retard side of the first engagement recess 23 formed in the front plate 4 are in contact with each other.

第２の工程では、図８に示すように、スプロケット５を、当該スプロケット５と内部ロータ３とに第２出退部材２２を係合させた状態でロータ本体６に組み付け、さらに外部ロータ１の補完部材であるスプロケット５が内部ロータ３に対して第１工程と同じ方向に相対回転するよう、スプロケット５を内部ロータ３に対して進角方向或いは遅角方向の何れか一方向に相対回転させて、スプロケット５を内部ロータ３に対して第２回転規制状態とする。ここで、第２回転規制状態とは、第２出退部材２２と第２係合凹部２４の進角側の端面２４ａとが接触する状態をいう。例えば、第２出退部材２２と第２係合凹部２４の進角側の端面２４ａに第２出退部材２２が接触するようスプロケット５を内部ロータ３に対して相対回転させることで、第２回転規制状態にすることできる。   In the second step, as shown in FIG. 8, the sprocket 5 is assembled to the rotor body 6 with the second retracting member 22 engaged with the sprocket 5 and the internal rotor 3, and The sprocket 5 is rotated relative to the internal rotor 3 in one of the advance direction and the retard direction so that the complementary sprocket 5 rotates relative to the internal rotor 3 in the same direction as the first step. Thus, the sprocket 5 is brought into the second rotation restricted state with respect to the internal rotor 3. Here, the second rotation restricting state refers to a state where the second retracting member 22 and the end surface 24a on the advance side of the second engaging recess 24 are in contact with each other. For example, by rotating the sprocket 5 relative to the internal rotor 3 so that the second advancing / retracting member 22 is in contact with the end face 24a on the advance side of the second advancing / retracting member 22 and the second engaging recess 24, the second It can be in a rotation restricted state.

第３の工程では、図９に示すように、第２出退部材２２と第２係合凹部２４の進角側の端面２４ａとのクリアランスＬを適正な所定値に設定し、その後、必要に応じて第１出退部材２１と第１係合凹部２３の遅角側の端面２３ａとのクリアランスを設定し、外部ロータ１の基部材であるロータ本体６及びフロントプレート４と補完部材であるスプロケット５とをボルト等の締結部材４０で締結する。   In the third step, as shown in FIG. 9, the clearance L between the second retracting member 22 and the end face 24a on the advance side of the second engaging recess 24 is set to an appropriate predetermined value, and then necessary. Accordingly, the clearance between the first retracting member 21 and the retarded end surface 23a of the first engaging recess 23 is set, and the rotor body 6 and the front plate 4 that are base members of the external rotor 1 and the sprocket that is a complementary member. 5 is fastened by a fastening member 40 such as a bolt.

本実施形態の弁開閉時期制御装置１００の組み付け方法では、スプロケット５を内部ロータ３に対して第１回転規制状態にするために、スプロケット５を内部ロータ３に対して遅角側に相対回転させて第２係合凹部２４の進角側の端面２４ａと第２出退部材２２とを当接させた後、スプロケット５を所定量だけ反対方向に相対回転させて第２出退部材２２と第２係合凹部２４の進角側の端面２４ａとのクリアランスＬを設定している。また、フロントプレート４を内部ロータ３に対して第２回転規制状態にするために、フロントプレート４を内部ロータ３に対して進角側に相対回転させて第１係合凹部２３の遅角側の端面２３ａと第１出退部材２１とを当接させた後、フロントプレート４を所定量だけ反対方向に相対回転させて第１出退部材２１と第１係合凹部２３の遅角側の端面２３ａとのクリアランスを設定している。   In the method of assembling the valve timing control device 100 of the present embodiment, the sprocket 5 is rotated relative to the internal rotor 3 to the retard side in order to place the sprocket 5 in the first rotation restricted state with respect to the internal rotor 3. After the advancing side end surface 24a of the second engaging recess 24 and the second retracting member 22 are brought into contact with each other, the sprocket 5 is relatively rotated in the opposite direction by a predetermined amount, and the second retracting member 22 and the second retracting member 22 are The clearance L with the end surface 24a on the advance angle side of the two engaging recesses 24 is set. Further, in order to place the front plate 4 in the second rotation restricted state with respect to the inner rotor 3, the front plate 4 is rotated relative to the inner rotor 3 toward the advance side, and the retard side of the first engaging recess 23. After the end surface 23a and the first retracting member 21 are brought into contact with each other, the front plate 4 is relatively rotated in the opposite direction by a predetermined amount, so that the first retracting member 21 and the first engaging recess 23 are disposed on the retard side. The clearance with the end surface 23a is set.

このように、スプロケット５及びフロントプレート４を内部ロータ３に対する一方向に相対回転して完全にロック状態に固定したのち、例えば、スプロケット５及びフロントプレート４を所定量だけ反対方向に相対回転させることで、出退部材２１，２２と係合凹部２３，２４とのクリアランスを適正に設定することができる。この状態で、外部ロータ１を組み立てることで、ここで設定したクリアランスによって、第１出退部材２１及び第２出退部材２２の作動が容易となる。このように本構成であれば、第１出退部材２１及び第２出退部材２２の係止動作を円滑にしながらも、中間ロック位置での係止状態を必要最小限の遊びが残存する状態に設定することができる。   Thus, after the sprocket 5 and the front plate 4 are relatively rotated in one direction with respect to the inner rotor 3 and are completely locked, for example, the sprocket 5 and the front plate 4 are rotated in the opposite directions by a predetermined amount. Thus, the clearance between the retracting members 21 and 22 and the engaging recesses 23 and 24 can be set appropriately. By assembling the external rotor 1 in this state, the first retracting member 21 and the second retracting member 22 can be easily operated by the clearance set here. In this way, according to this configuration, the first and second members 21 and 22 are smoothly engaged with each other, and the state where the necessary minimum play remains in the intermediate locked position is maintained. Can be set to

〔その他の実施形態〕
（１）本発明に係る弁開閉時期制御装置１００の組み付け方法においては、外部ロータ（駆動側回転体）１の内周側に流体圧室１０を形成する第１仕切部８を内部ロータ（従動側回転体）３に設け、流体圧室１０を進角室１１と遅角室１２とに仕切る第２仕切部９を外部ロータ（駆動側回転体）１に設けられていてもよい。 [Other Embodiments]
(1) In the method for assembling the valve opening / closing timing control device 100 according to the present invention, the first partition 8 that forms the fluid pressure chamber 10 on the inner peripheral side of the external rotor (drive-side rotator) 1 is replaced with the internal rotor (driven). The second rotor 9 may be provided in the external rotor (drive-side rotor) 1 so as to be provided in the side rotor 3 and partition the fluid pressure chamber 10 into the advance chamber 11 and the retard chamber 12.

（２）本発明に係る弁開閉時期制御装置１００の組み付け方法においては、第１出退部材２１又は第２出退部材２２を装着してある収容部３０、３１を外部ロータ（駆動側回転体）１及び内部ロータ（従動側回転体）３のいずれに設けてもよい。 (2) In the method for assembling the valve opening / closing timing control device 100 according to the present invention, the accommodating portions 30 and 31 to which the first withdrawing member 21 or the second withdrawing member 22 is attached are used as external rotors (drive-side rotating bodies). ) 1 and the inner rotor (driven rotor) 3 may be provided.

（３）上記の第１実施形態の組み付け方法において、第２出退部材２２をフロントプレート４又は内部ロータ３に装着してもよい。上記の実施形態において、スプロケット５に代えてリアプレートを設け、このリアプレートに第２出退部材２２または第２係合凹部２４を設けてもよい。この場合、スプロケット５はロータ本体６の外周に設けることとなる。 (3) In the assembly method of the first embodiment, the second withdrawing member 22 may be attached to the front plate 4 or the inner rotor 3. In the above embodiment, a rear plate may be provided instead of the sprocket 5, and the second retracting member 22 or the second engaging recess 24 may be provided on the rear plate. In this case, the sprocket 5 is provided on the outer periphery of the rotor body 6.

（４）上記の第２実施形態では、フロントプレート４側の第１出退部材２１と第１係合凹部２３とを回転規制状態に仮固定したのち、スプロケット５側の第２出退部材２２と第２係合凹部２４とを回転規制状態にする例を示した。それとは反対に、スプロケット５側の第２出退部材２２と第２係合凹部２４とを回転規制状態に仮固定したのち、フロントプレート４側の第１出退部材２１と第１係合凹部２３とを回転規制状態してもよい。 (4) In said 2nd Embodiment, after temporarily fixing the 1st withdrawing member 21 and the 1st engagement recessed part 23 by the side of the front plate 4 to a rotation control state, the 2nd withdrawing member 22 by the side of the sprocket 5 is used. An example in which the second engagement recess 24 is in a rotation restricted state is shown. On the contrary, after temporarily fixing the second retracting member 22 and the second engaging recess 24 on the sprocket 5 side to the rotation restricted state, the first retracting member 21 and the first engaging recess on the front plate 4 side are fixed. 23 may be in a rotation restricted state.

（５）上記の実施形態に係る弁開閉時期調整装置では、駆動側回転体と従動側回転体との相対位相を最遅角側に規制する出退部材と最進角側に規制する出退部材とをそれぞれ個別に備える例を示したが、駆動側回転体と従動側回転体との相対位相を最遅角側または最進角側の一方の位置のみにロックするロック機構を複数の出退部材で構成してもよい。 (5) In the valve opening / closing timing adjusting device according to the above-described embodiment, the advancing / retreating member that restricts the relative phase between the driving-side rotator and the driven-side rotator to the most retarded angle side and the most advanced angle side. Although an example in which each member is individually provided is shown, a plurality of lock mechanisms that lock the relative phase of the driving side rotating body and the driven side rotating body at only one position on the most retarded angle side or the most advanced angle side are shown. You may comprise a retraction member.

本発明は、自動車その他の内燃機関の弁開閉時期制御装置の組み付け方法に適応可能である。   The present invention can be applied to a method of assembling a valve timing control device for an automobile or other internal combustion engine.

１ 外部ロータ（駆動側回転体）
３ 内部ロータ（従動側回転体）
４ フロントプレート
５ スプロケット
６ ロータ本体
８ 第１仕切部
９ 第２仕切部
１０ 流体圧室
１１ 進角室
１２ 遅角室
１６ 第１ロック解除通路
１７ 第２ロック解除通路
２１ 第１出退部材
２２ 第２出退部材
２３ 第１係合凹部
２３ａ 端面
２４ 第２係合凹部
２４ａ 端面
４０ 締結部材
Ｌ クリアランス 1 External rotor (drive side rotating body)
3 Internal rotor (driven rotor)
4 Front plate 5 Sprocket 6 Rotor body 8 First partition 9 Second partition 10 Fluid pressure chamber 11 Advance chamber 12 Delay chamber 16 First lock release passage 17 Second lock release passage 21 First retracting member 22 First 2 Retracting member 23 First engagement recess 23a End surface 24 Second engagement recess 24a End surface 40 Fastening member L Clearance

Claims (3)

内燃機関のクランクシャフトと同期回転し、基部材と当該基部材に組み付けられる少なくとも一つの補完部材とで構成される駆動側回転体と、
前記駆動側回転体と同軸芯状に配置され、前記内燃機関の弁開閉用のカムシャフトと一体回転する従動側回転体と、
前記駆動側回転体と前記従動側回転体との間に形成され、これら双方の回転体の少なくとも一方に設けられた仕切部によって、進角室と遅角室とに仕切られた流体圧室と、
前記駆動側回転体と前記従動側回転体とに亘って係脱可能であり、これら回転体どうしの相対回転位相を所定位相にロック又は所定位相範囲内に規制する第１出退部材と第２出退部材と、の組み立てに際し、
前記基部材と前記従動側回転体とに亘って前記第１出退部材を係合させたのち、前記従動側回転体が前記基部材に対して進角方向或いは遅角方向の何れか一方向に相対回転するよう、前記基部材及び前記従動側回転体の何れか一方を回転させて、前記従動側回転体を前記基部材に対して第１回転規制状態にして仮固定する工程と、
前記補完部材を、当該補完部材と前記従動側回転体とに前記第２出退部材を係合させた状態で前記基部材に組み付け、さらに前記補完部材が前記従動側回転体に対して前記一方向に相対回転するよう、前記補完部材及び前記従動側回転体の何れか一方を回転させて、前記補完部材を前記従動側回転体に対して第２回転規制状態とする工程と、
前記補完部材と前記基部材とを締結部材を用いて締結する工程とを備えた弁開閉時期制御装置の組み付け方法。 A drive-side rotating body configured to rotate synchronously with a crankshaft of an internal combustion engine and configured with a base member and at least one complementary member assembled to the base member;
A driven-side rotating body that is arranged coaxially with the driving-side rotating body, and rotates integrally with a camshaft for opening and closing the valve of the internal combustion engine;
A fluid pressure chamber formed between the drive-side rotator and the driven-side rotator and partitioned into an advance chamber and a retard chamber by a partition provided on at least one of the both rotators; ,
A first retracting member and a second member that can be engaged / disengaged between the driving side rotating body and the driven side rotating body, and that lock the relative rotational phase of these rotating bodies to a predetermined phase or restrict them within a predetermined phase range. When assembling the withdrawal member,
After the first retracting member is engaged across the base member and the driven-side rotator, the driven-side rotator is in either the advance direction or the retard direction with respect to the base member. Rotating one of the base member and the driven-side rotator so as to rotate relative to the base member, and temporarily fixing the driven-side rotator to the base member in a first rotation restricted state;
The complementary member is assembled to the base member in a state in which the second extending / retracting member is engaged with the complementary member and the driven-side rotator, and the complementary member is further attached to the driven-side rotator. Rotating either one of the complementary member and the driven-side rotator so as to relatively rotate in a direction, and setting the complementary member to a second rotation restricted state with respect to the driven-side rotator;
A method of assembling the valve opening / closing timing control device comprising the step of fastening the complementary member and the base member using a fastening member. 前記第１出退部材及び前記第２出退部材のうち、一方を前記駆動側回転体の径方向に設けられたキー部材で構成し他方を前記駆動側回転体の軸芯方向に設けられたピン部材で構成してある請求項１記載の弁開閉時期制御装置の組み付け方法。   One of the first withdrawing member and the second withdrawing member is constituted by a key member provided in the radial direction of the driving side rotating body, and the other is provided in the axial direction of the driving side rotating body. The method for assembling the valve timing control device according to claim 1, wherein the valve timing control device is constituted by a pin member. 前記補完部材と前記基部材とを前記締結部材を用いて締結する工程は、前記第２出退部材と前記補完部材とのクリアランスを所定値に設定した後に実施される請求項１記載の弁開閉時期制御装置の組み付け方法。   The valve opening and closing according to claim 1, wherein the step of fastening the complementary member and the base member using the fastening member is performed after setting a clearance between the second retracting member and the complementary member to a predetermined value. Assembling method of timing controller.
JP2012018682A 2012-01-31 2012-01-31 Method of assembling valve opening/closing timing control apparatus Pending JP2013155712A (en)

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