ROCKER ARM SUPPORT STRUCTURE

To provide a rocker arm support structure capable of adjusting a tappet clearance in compact configuration.SOLUTION: In a rocker arm support structure, a rocker arm shaft 16 comprises an arm support part 16b which penetrates a rocker arm 15, and a holder abutment part 16a which is supported by a sha...

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Bibliographic Details
Main Authors EMIZU OSAMU, TAKADA YOSHIHIRO
Format Patent
LanguageEnglish
Japanese
Published 01.11.2018
Subjects
BLASTING
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:To provide a rocker arm support structure capable of adjusting a tappet clearance in compact configuration.SOLUTION: In a rocker arm support structure, a rocker arm shaft 16 comprises an arm support part 16b which penetrates a rocker arm 15, and a holder abutment part 16a which is supported by a shaft holder 10, and is suppored in an axially slidable manner by a drive mechanism 18. When axially sliding the rocker arm shaft 16 by the drive mechanism 18, a guide member 20 which is provided in the shaft holder 10 and a groove part 16g which is provided in the holder abutment part 16a and extends while being tilted in relative to a central axis SC are slid, thereby rotating the rocker arm shaft 16 and with rotation of the arm support part 16b that is made eccentric, a tappet clearance between the rocker arm 15 and a cam surface 14 is adjusted.SELECTED DRAWING: Figure 2 【課題】コンパクトな構成で、タペットクリアランスを調整可能なロッカーアーム支持構造を提供する。【解決手段】ロッカーアーム支持構造において、ロッカーアームシャフト１６は、ロッカーアーム１５を貫通するアーム支持部１６ｂとシャフトホルダ１０に支持されるホルダ当接部１６ａとを有し、駆動機構１８により軸方向にスライド可能に支持される。駆動機構１８によってロッカーアームシャフト１６が軸方向にスライドするとき、シャフトホルダ１０に設けられたガイド部材２０とホルダ当接部１６ａに設けられ中心軸線ＳＣに対して傾斜して延びる溝部１６ｇとが摺動することでロッカーアームシャフト１６が回転し、偏心したアーム支持部１６ｂの回転に伴ってロッカーアーム１５とカム面１４とのタペットクリアランスが調整される。【選択図】図２
Bibliography:Application Number: JP20170066330