JPS6136113U - Intake/exhaust valve operation/stop mechanism in internal combustion engines - Google Patents

Intake/exhaust valve operation/stop mechanism in internal combustion engines

Info

Publication number
JPS6136113U
JPS6136113U JP1984120916U JP12091684U JPS6136113U JP S6136113 U JPS6136113 U JP S6136113U JP 1984120916 U JP1984120916 U JP 1984120916U JP 12091684 U JP12091684 U JP 12091684U JP S6136113 U JPS6136113 U JP S6136113U
Authority
JP
Japan
Prior art keywords
arms
arm
intake
operating position
internal combustion
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.)
Granted
Application number
JP1984120916U
Other languages
Japanese (ja)
Other versions
JPH0218245Y2 (en
Inventor
康二 吉崎
Original Assignee
トヨタ自動車株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to JP1984120916U priority Critical patent/JPS6136113U/en
Publication of JPS6136113U publication Critical patent/JPS6136113U/en
Application granted granted Critical
Publication of JPH0218245Y2 publication Critical patent/JPH0218245Y2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison

Landscapes

  • Valve Device For Special Equipments (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る吸排気弁の作動停止機構をロック
解除位置（不作動位置）で示す図解図、第２図は第１図
の要部の断面平面図、第３図は閉弁時における第１図に
示す装置のロック位置（作動位置）を示す図、第４図は
開弁時における第３図と同様の図、第５図は本考案の第
２実施例を示す第２図と同様の図、第６図は本考案の第
３実施例を示す第２図と同様の図。 １１・・・ロツカアーム、１３Ａ・・・第１アーム、１
３Ｂ・・・第２アーム、１５・・・固定軸、１９・・・
ロツカシャフト、２１゜・゜バルブステム、２３・・・
カム、２９・・・復帰ばね、３３・・・ピストン、４５
・・・ロックピン。Fig. 1 is an illustrative diagram showing the intake/exhaust valve operation stop mechanism according to the present invention in an unlocked position (non-operating position), Fig. 2 is a cross-sectional plan view of the main part of Fig. 1, and Fig. 3 is a closed valve. FIG. 4 is a view similar to FIG. 3 when the valve is opened, and FIG. 5 is a second embodiment of the present invention. FIG. 6 is a view similar to FIG. 2 showing a third embodiment of the present invention. 11...Rotsuka arm, 13A...1st arm, 1
3B...Second arm, 15...Fixed shaft, 19...
Rotsuka shaft, 21゜・゜valve stem, 23...
Cam, 29... Return spring, 33... Piston, 45
...Lock pin.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一端がロツカシャフトに回転自在に軸支され他端が吸排
気弁のパルブステムに当接せしめられるスイングアーム
式のロツカアームと、このロツカアームの中間部に当接
せしめられこれを上記口ツカシャフトを支点として揺動
せしめるカムとを有する内燃機関の動弁系において、上
記ロツカアームはカムシャフトに軸支される側の第１の
アームとバルブステムに当接せしめられる側の第２のア
ームとの分離した２個のアームにより構成され、これら
第１、第２アームは共通の固定軸により該固定軸を中心
として相対回動自在に連結され、それにより両アームは
両アームが一体的に延びる作動位置と固定軸を中心とし
て折れ曲った不作動位置とを選択的にとることができ、
更に上記第１、第２アーム間には該両アームの相対回動
を防止して両アームを作動位置に一体的にロックするロ
ック手段と該ロック手段を所定時に解除するロック解除
手段と、両アームを上記作動位置に向って常時付勢しロ
ック解放時に両アームを作動位置に復帰せしめる復帰手
段とが設けられることを特徴とする内燃機関における吸
排気弁の作動停止機構。A swing arm type rocker arm has one end rotatably supported by the rocker shaft and the other end abuts against the valve stem of the intake and exhaust valve, and the rocker arm is brought into contact with the middle part of the rocker arm and is supported by the rocker shaft as a fulcrum. In a valve train for an internal combustion engine that has a cam that swings, the rocker arm has two separate arms, a first arm that is pivotally supported by the camshaft, and a second arm that is abutted against the valve stem. The first and second arms are connected by a common fixed shaft so as to be relatively rotatable about the fixed shaft, so that both arms can be fixed in the operating position where both arms extend integrally. It can be selectively set to an inoperative position bent around the axis.
Further, between the first and second arms, there is provided a locking means for integrally locking both arms in the operating position by preventing relative rotation of the two arms, and a locking means for releasing the locking means at a predetermined time. A mechanism for stopping operation of an intake and exhaust valve in an internal combustion engine, characterized in that a return means is provided for constantly urging the arm toward the operating position and for returning both arms to the operating position when the lock is released.
JP1984120916U 1984-08-08 1984-08-08 Intake/exhaust valve operation/stop mechanism in internal combustion engines Granted JPS6136113U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984120916U JPS6136113U (en) 1984-08-08 1984-08-08 Intake/exhaust valve operation/stop mechanism in internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984120916U JPS6136113U (en) 1984-08-08 1984-08-08 Intake/exhaust valve operation/stop mechanism in internal combustion engines

Publications (2)

Publication Number Publication Date
JPS6136113U true JPS6136113U (en) 1986-03-06
JPH0218245Y2 JPH0218245Y2 (en) 1990-05-22

Family

ID=30679714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984120916U Granted JPS6136113U (en) 1984-08-08 1984-08-08 Intake/exhaust valve operation/stop mechanism in internal combustion engines

Country Status (1)

Country Link
JP (1) JPS6136113U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041330A (en) * 1990-04-18 1992-01-06 Higashikata Unit Kenkyusho:Kk Construction of underground structure
JP2017133422A (en) * 2016-01-28 2017-08-03 株式会社オティックス Variable valve train of internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60259715A (en) * 1984-06-01 1985-12-21 ザ　ジェイコブス　マニュフアクチヤリング　コンパニー Compression release engine delay method and apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60259715A (en) * 1984-06-01 1985-12-21 ザ　ジェイコブス　マニュフアクチヤリング　コンパニー Compression release engine delay method and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041330A (en) * 1990-04-18 1992-01-06 Higashikata Unit Kenkyusho:Kk Construction of underground structure
JP2017133422A (en) * 2016-01-28 2017-08-03 株式会社オティックス Variable valve train of internal combustion engine

Also Published As

Publication number Publication date
JPH0218245Y2 (en) 1990-05-22

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