To provide a technology which achieves improvement of castability despite a knuckle cast including a first reinforcement rib and a second reinforcement rib designed to improve rigidity.SOLUTION: A knuckle cast 20 comprises a casting plan part 22 and a product part 23 formed along flow of a molten metal 21. The product part 23 includes: an intermediate part 26; a first fastening part 27 integrally formed with one end (the casting plan part 22 side) of the intermediate part 26; a second fastening part 28 integrally formed with the other end of the intermediate part 26; and a first rib 31 and a second rib 32 which are integrally formed with the intermediate part 26 so as to extend from the first fastening part 27 to the second fastening part 28. The first rib 31 and the second rib 32 are not parallel to each other and are arranged in a V shape so that a rib interval W1 at the first fastening part 27 side becomes narrower than a rib interval W2 at the second fastening part 28 side.SELECTED DRAWING: Figure 4

    【課題】ナックル鋳物に剛性向上を目的とした第1補強リブと第2補強リブとを備えるにも拘わらず、鋳造性の向上が図れる技術を提供する。【解決手段】ナックル鋳物20は、溶湯21の流れに沿って形成される方案部22と製品部23とからなる。製品部23は、中間部26と、この中間部26の一端(方案部22側)に一体的に形成される第1の締結部27と、中間部26の他端に一体的に形成される第2の締結部28と、第1の締結部27から第2の締結部28まで延びるようにして中間部26に一体的に形成される第1リブ31及び第2リブ32とを備えている。第1リブ31と第2リブ32とは、非平行であって、第2の締結部28側のリブ間隔W2に対して第1の締結部27側のリブ間隔W1が狭くなるように、V字形に配置されている。【選択図】図4


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    Title :

    KNUCKLE CAST AND KNUCKLE


    Additional title:

    ナックル鋳物及びナックル


    Contributors:

    Publication date :

    2023-06-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / B62D MOTOR VEHICLES , Motorfahrzeuge



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