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    • 109. 发明授权
    • Motion converting drive mechanism and vehicle seat apparatus including the same
    • 运动转换驱动机构和包括其的车辆座椅装置
    • EP2103479B1
    • 2017-10-04
    • EP09153108.7
    • 2009-02-18
    • Aisin Seiki Kabushiki Kaisha
    • Ito, Sadao
    • B60N2/02B60N2/22B60N2/23B60N2/44
    • B60N2/2222B60N2/0232B60N2/233B60N2/929B60N2002/024Y10T74/18576Y10T74/18664
    • A motion converting drive mechanism (64) converting a rotary motion into a linear reciprocating motion includes a motor (66) having an output shaft (66a), a housing case (76, 95) to which the output shaft (66a) is fixed, a reduction gear mechanism (67A, 67B) including a first pinion (72) and a second pinion (73, 91) meshing with the first pinion (72), and a screw mechanism (68A, 68B) having an internal threaded portion and an external threaded portion, one of which is integrally and coaxially formed with the second pinion (73, 91). The first pinion (72) as a helical gear wheel is supported by the housing case (76, 95) and has a rotation axis coaxially connected to the output shaft (66a). The second pinion (73, 91) having a rotation axis arranged in parallel and close to the rotation axis of the first pinion (72) is supported by the housing case (76, 95).
    • 将旋转运动转换为直线往复运动的运动转换驱动机构(64)包括:具有输出轴(66a)的电机(66);固定输出轴(66a)的外壳(76,95) 包括与第一小齿轮(72)啮合的第一小齿轮(72)和第二小齿轮(73,91)的减速齿轮机构(67A,67B)以及具有内螺纹部分和螺纹部分的螺旋机构(68A,68B) 外螺纹部分,其中一个与第二小齿轮(73,91)一体地且同轴地形成。 作为螺旋齿轮的第一小齿轮(72)由外壳(76,95)支撑,并且具有与输出轴(66a)同轴连接的旋转轴线。 具有与第一小齿轮(72)的旋转轴线平行且接近的旋转轴的第二小齿轮(73,91)由外壳(76,95)支承。