PROBLEM TO BE SOLVED: To provide a reduction gear for a vehicle seat that has an external tooth gear capable of opposing a large load.SOLUTION: In a reduction gear, a tooth flank 13B on a side of a 'tooth space bottom 13E' of a 'dedendum face 13A' of an external tooth gear 13 is positioned on an addendum side relative to an inter-tooth contact circular arc 13D, thereby enlarging a tooth thickness dimension S of a critical section SD. Thus, the reduction gear for a vehicle seat that has an external tooth gear capable of opposing a large load can be obtained.SELECTED DRAWING: Figure 5

    【課題】 大きな荷重に対抗し得る外歯歯車を有する乗物シート用の減速装置を提供する。【解決手段】 外歯歯車13の「歯元の面13A」のうち「歯溝の底13E」側の歯面13Bは、歯間接円弧13Dより歯先側に位置している。これにより、危険断面SDの歯厚寸法Sを大きくすることができるので、大きな荷重に対抗し得る外歯歯車を有する乗物シート用の減速装置を得ることができる。【選択図】 図5


    Access

    Download


    Export, share and cite



    Title :

    REDUCTION GEAR


    Additional title:

    減速装置


    Contributors:
    ITO SADAO (author)

    Publication date :

    2018-05-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / A47C Stühle , CHAIRS / F16H Getriebe , GEARING



    GEAR REDUCTION GEAR

    OKABE YUKI | European Patent Office | 2017

    Free access

    REDUCTION GEAR AND GEAR MOTOR

    HOFFMANN ANDREAS | European Patent Office | 2018

    Free access

    REDUCTION GEAR

    SHIMODA KATSUMI / ITO TAKUZO / AOYAMA MASASHI et al. | European Patent Office | 2022

    Free access

    REDUCTION GEAR

    ISONO HIROSHI | European Patent Office | 2023

    Free access

    REDUCTION GEAR

    KAMEDA MICHIHIRO / HORIUCHI YASUHIRO | European Patent Office | 2021

    Free access